Abstract

12122≤0.6.

IPC Classes  ?

• H02K 1/2706 - Inner rotors
• H02K 1/274 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/22 - Rotating parts of the magnetic circuit
• H02K 1/12 - Stationary parts of the magnetic circuit
• H02K 1/16 - Stator cores with slots for windings

Abstract

11 from the first wall surface (233) to the second wall surface (234) and the maximum distance Wm between the two sides of the first wall surface (233) in the circumferential direction satisfy a certain dimensional requirement.

IPC Classes  ?

• H02K 1/2706 - Inner rotors

Abstract

Disclosed are an electrode terminal, a compressor and a refrigeration device. The electrode terminal is used for a compressor, and comprises: an outer cover (100), which comprises a bottom plate (110) and a surrounding plate (120) connected to the outer periphery of the bottom plate (110); at least three electrodes (200), which pass through the bottom plate (110) and are in insulated connection with the bottom plate (110); and a protective sleeve (300), which comprises at least three protective units (310), wherein the three protective units (310) are correspondingly sleeved on three electrodes (200), respectively.

IPC Classes  ?

• H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
• H01R 13/40 - Securing contact members in or to a base or caseInsulating of contact members
• H01B 17/58 - Tubes, sleeves, beads or bobbins through which the conductor passes

Abstract

A motor, a compressor, and a refrigeration device. The motor comprises stator laminations (100) and rotor laminations (200); the rotor laminations (200) are rotatably provided inside the stator laminations (100); the outer annular surface of each stator lamination (100) is provided with n contact protruding portions (110) protruding outwards; each rotor lamination (200) is provided with 2P magnet slots (210); the magnet slots are used for mounting permanent magnets; and the relationship between n and P is: n=p+/-2.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings
• H02K 3/18 - Windings for salient poles
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines

Abstract

The present application discloses a stator lamination, a stator core, a motor, a compressor, and a refrigeration device. The stator lamination comprises a stator yoke. Arc sections and buffer sections are alternately provided on an outer peripheral surface of the stator yoke. Each buffer section comprises a curved segment and two arc line segments. The two arc line segments are located on two opposite sides of the curved segment, respectively. A distance from each arc line segment to the center of the stator lamination is less than a distance from each arc section to the center of the stator lamination. The curved segment is tangent to an extension line of the arc section and has a point of tangency.

IPC Classes  ?

• H02K 1/12 - Stationary parts of the magnetic circuit
• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings

Abstract

A motor, a compressor, and a refrigeration device. The motor comprises a stator and a rotor. The stator comprises a stator core (11) and a winding (12). The stator core (11) is provided with stator slots (111). The winding (12) is wound on the stator core (11) and is located in the stator slots (111). The rotor comprises a rotor core (21) and a plurality of permanent magnets (22). The rotor core (21) is provided with a plurality of magnet slots per pole (23). The permanent magnets (22) are located in the magnet slots per pole (23). The quantity of the stator slots (111) is 15, the quantity of poles of the rotor is 10, the intrinsic coercive force of the permanent magnets (22) is hcj, the included angle between the magnet slots per pole (23) is α, the thickness of the permanent magnet (22) in the magnetization direction is h, hcj≤1,800 kA/m, 11*α/hcj≤h≤50*α/hcj, and α/hcj is an anti-demagnetization factor.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 1/14 - Stator cores with salient poles
• H02K 3/18 - Windings for salient poles
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material

Abstract

The present application discloses a motor, a compressor and a refrigeration apparatus. The motor comprises a stator and a rotor; the stator comprises a stator iron core and windings; stator slots are formed in the stator iron core; the stator iron core comprises a stator yoke and stator teeth; the stator teeth are connected to the stator yoke; the windings are wound on the stator teeth and are located in the stator slots; the rotor comprises a rotor iron core and permanent magnets; magnet slots are formed in the rotor iron core; the permanent magnets are located in the magnet slots; and the outer diameter and the inner diameter of the stator iron core are D1 and D2, respectively, the thickness of the stator yoke is t, the width of each magnet slot is b, the thickness of the magnet slot is h, the number of poles of the rotor is 2p, there are N permanent magnets, 4.3≤t≤7.0, 0.577≤D2/D1≤0.6, and 1.3≤b*h*2p*N/1000≤3.5.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 1/14 - Stator cores with salient poles
• H02K 3/18 - Windings for salient poles
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium

Abstract

A thermal management module and a vehicle. The thermal management module comprises: a body part (1), wherein a built-in flow channel (111) is formed in the body part; and a liquid storage device (2), valve devices (3), and heat exchangers (4), wherein the liquid storage device (2), the valve devices (3), and the heat exchangers (4) are all connected to the body part (1) and are respectively communicated with the built-in flow channel (111). The body part (1) comprises a first plate (11), a sealing connecting plate (12), and a second plate (14); the first plate (11) and the second plate (14) are respectively connected to two sides of the sealing connecting plate (12); the liquid storage device (2) and the valve devices (3) are both connected to the first plate (11); and the heat exchangers (4) are connected to the second plate (14).

IPC Classes  ?

• B60H 1/00 - Heating, cooling or ventilating devices

Abstract

Provided are a compressor (100) and a refrigeration device. The compressor (100) comprises a compression mechanism (300) and air injection valve assemblies. The compression mechanism (300) is provided with a compression cavity (321), a sliding vane slot communicated with the compression cavity (321), and an air injection channel (323) communicated with the compression cavity (321). Each air injection valve assembly comprises a valve seat disposed on the compression mechanism (300) and a valve body disposed on the valve seat. In the height direction of the compression mechanism (300), the compression cavity (321) has a first projection (910), the valve seat has a second projection (920), the second projection (920) having a second axis (810) extending in the length direction of the second projection (920), and the sliding vane slot has a third projection, the third projection having a third axis (820) extending in the length direction of the third projection, wherein the second axis (810) and the third axis (820) are arranged in parallel or at an included angle, the second axis (810) does not pass through the center of the first projection (910), the second projection (920) has a first end away from the first projection (910) and a second end close to the first projection (910), and the vertical distance between the first end and the third axis (820) is greater than or equal to the vertical distance between the second end and the third axis (820).

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

Disclosed in the present application are a compressor and a refrigeration apparatus. The compressor comprises a compressor main body and an air-spray reservoir, wherein the compressor main body is provided with an air-spray opening, and the air-spray reservoir is mounted outside the compressor main body; the air-spray reservoir comprises an inner insertion pipe and a tank, two ends of the inner insertion pipe being respectively connected to the air-spray opening and the tank; and the outer diameter of the compressor main body is D1, and the minimum distance between the axis of the tank and the axis of the compressor main body is D2, where 0.05≤(2D2-D1)/D1≤0.22.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

A compressor (10) and a refrigeration device. The compressor (10) comprises a compressor body (100), a jet accumulator (200), and an air suction accumulator (300); the compressor body (100) comprises a pump body assembly; the jet accumulator (200) is in communication with the pump body assembly; the air suction accumulator (300) is in communication with the pump body assembly; and the jet accumulator (200) and/or the air suction accumulator (300) are arranged at one end of the compressor body (100) in the axial direction.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

An integrated compressor and a refrigeration device. The integrated compressor comprises: a housing (100), an air cylinder (200), a lower bearing (300), and an oil cover (400). The air cylinder (200) is disposed in the housing (100); the lower bearing (300) is disposed in the housing (100), and an upper surface of the lower bearing (300) is connected to the air cylinder (200); the oil cover (400) is connected to a lower end surface of the lower bearing (300) in a sealed manner, and the lower bearing (300) has a vertically penetrating through hole in communication with the oil cover (400). The integrated compressor and the refrigeration device, by means of providing an oil cover (400) on a lower bearing (300), can separate cooling oil and refrigerant in a housing while a compressor main body and a liquid reservoir are integrally arranged, reducing excessive mixing of the cooling oil and the refrigerant.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/02 - LubricationLubricant separation
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

The present application discloses a compressor and a refrigeration device. The compressor comprises a compressor main body, a lower bearing, and a liquid storage device; the compressor main body comprises a housing and an air cylinder; the air cylinder is provided with a first air return channel; the lower bearing is connected to the air cylinder; the lower bearing is provided with a second air return channel; the liquid storage device is integrally arranged above or below the compressor main body; a liquid storage cavity is formed in the liquid storage device; the liquid storage cavity is communicated with the air cylinder through the second air return channel and the first air return channel in sequence.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member

Abstract

A compressor, comprising: a housing (100), which comprises a top cover (110), a main housing (120) and a bottom cover (130) that are sequentially connected, wherein the main housing (120) is integrally formed, and the housing (100) is divided into a high pressure chamber (140) and a liquid storage chamber (150); an air cylinder (200), which is arranged in the high pressure chamber (140); an air intake pipe assembly (300), which is arranged outside the housing (100) and is in communication with the liquid storage chamber (150); and an oil-return and air-return structure (500), which is located inside the housing (100) and by means of which the liquid storage chamber (150) is in communication with the high pressure chamber (140). The air cylinder (200) is accommodated inside the main housing (120) that is integrally formed, the high pressure chamber (140) and the liquid storage chamber (150) are separated inside the main housing (120), and the liquid storage chamber (150) stores a refrigerant introduced by means of the air intake pipe assembly (300), such that a liquid storage device and a main body essentially share one housing, thereby preventing the liquid storage device from being mounted by welding, and in turn reducing the risk of leakage of the main body or the liquid storage device.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

Disclosed in the present application are a compressor and a refrigeration apparatus. The compressor comprises a housing, a pump body assembly and an oil return pipe, wherein the pump body assembly is arranged on the housing, a spacing is provided between the pump body assembly and the bottom of the housing, and a liquid storage cavity is formed; and the oil return pipe is arranged inside the housing and is provided with a first end and a second end, the first end being in communication with the liquid storage cavity, and the second end being in communication with the pump body assembly.

IPC Classes  ?

• F04C 29/02 - LubricationLubricant separation
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Abstract

12122max ≤ 0.7b.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings

Abstract

The present application discloses a motor, a compressor, and a refrigeration device. The motor comprises a rotor; 2P mounting slots are formed in the rotor; the 2P mounting slots are arranged at intervals in the circumferential direction of the rotor; permanent magnets are mounted in the mounting slots; the two ends of each mounting slot are provided with magnetic barrier areas exceeding the two ends of the corresponding permanent magnet; a recess structure is arranged at the position, corresponding to the middle position of every two adjacent mounting slots, on the outer edge of the rotor; magnetic isolation bridges are formed between each recess structure and the magnetic barrier areas of the two corresponding mounting slots; an included angle θ between the connecting lines from the two ends, close to each other, of two adjacent recess structures to the center of the rotor is greater than or equal to 180°/(2P).

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

Disclosed in the present application are an electric motor, a compressor and a refrigeration apparatus. The electric motor comprises a stator and a rotor, wherein the stator comprises a plurality of stator teeth arranged at intervals, and the ends of the stator teeth that face the axis of the stator are provided with tooth shoes; a plurality of mounting slots are formed in the rotor and are arranged at intervals in the circumferential direction of the rotor; permanent magnets are mounted in the mounting slots; two opposite ends of each mounting slot are provided with magnetic barrier slots, and both the magnetic barrier slots extend towards a d-axis; and the included angle between connecting lines from the center of the rotor to two ends of every two magnetic barrier slots extending towards each other is θ1, and the included angle between connecting lines from the center of the rotor to two opposite ends of each tooth shoe is θ2, with |θ1-θ2| < a preset angle.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/14 - Stator cores with salient poles

Abstract

Disclosed in the present application are a rotor assembly capable of improving demagnetization resistance, and an electric motor, a compressor, and a refrigerating machine. The rotor assembly (110) comprises: a rotor core (111) provided with magnet grooves (1111); and permanent magnets (112) provided in the magnet grooves (1111), wherein each permanent magnet is provided with a diffusion region in the plane where the width and thickness of the permanent magnet (112) are located, and the diffusion region (1121) comprises: a first diffusion region (11211) provided on one side of the width center line of the permanent magnet, and/or a second diffusion region (11212) provided on the other side of the width center line of the permanent magnet.

IPC Classes  ?

• H01F 1/053 - Alloys characterised by their composition containing rare earth metals

Abstract

Disclosed in the present application are an electric motor capable of improving demagnetization resistance, a compressor, and a refrigerating machine. The electric motor (100) comprises: a stator assembly (110) comprising a stator core (111) and a winding (112); and a rotor assembly (120) comprising a rotor core (121) and permanent magnets (122), wherein each permanent magnet (122) is provided with a diffusion region in the plane where the width and thickness of the permanent magnet (122) are located, and the diffusion region comprises: a first diffusion region (1221) provided on one side of the width center line of the permanent magnet, and/or a second diffusion region (1222) provided on the other side of the width center line of the permanent magnet, the first diffusion region (1221) and the second diffusion region (1222) containing rare earth elements.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

A multi-channel valve (100), a thermal management integrated module, and a vehicle. The multi-channel valve (100) comprises: a housing (10) provided with a valve cavity (101) and a plurality of circulation channels (102), the plurality of circulation channels (102) being arranged at intervals in the circumferential direction of the valve cavity (101), and the circulation channels (102) each having an inner port (102a) communicated with the valve cavity (101), and an outer port (102b) penetrating the same end face of the housing (10); and a valve core (20) rotatably arranged in the valve cavity (101), the valve core (20) being provided with at least one switching channel, the switching channel being connected to two of the inner ports (102a), and the valve core (20) rotating so that the switching channel switches to be connected to different inner ports (102a).

IPC Classes  ?

• F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
• F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks
• F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details

Abstract

A rotor structure, a permanent-magnet electric motor and use. The rotor structure comprises a rotor core (100), and a plurality of permanent magnets (120). A plurality of slots (110) are provided in an end surface of the rotor core (100) in a circumferential direction. Each permanent magnet (120) is correspondingly embedded in each slot (110), the permanent magnets (120) contain heavy rare earth elements, and each permanent magnet (120) is divided into a diffusion region (130) and a non-diffusion region according to the content of the heavy rare earth elements, wherein the diffusion region (130) contains, in percentage by mass, g% of heavy rare earth elements, and the non-diffusion region contains, in percentage by mass, g'% of heavy rare earth elements, where g' < g. A first magnetic isolation bridge (140) is provided between the permanent magnets (120).

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

Disclosed in the present application are a rotor capable of enhancing demagnetization resistance, a motor, a compressor, and a refrigerator. The rotor (110) comprises: a rotor core (111) provided with magnet slots (1111); a plurality of groups of permanent magnets (112) which are arranged in the magnet slots (1111), every group of two permanent magnets (112) being distributed to form a V shape, and the plurality of groups of permanent magnets (112) being arranged around the rotor core (111); first flux barriers (113) each provided between the magnet slots (1111) where the two permanent magnets (112) in the same group are located; and second flux barriers (114) each provided between the magnet slots (1111) where the permanent magnets (112) in adjacent groups are located. A first diffusion region (11211) and/or a second diffusion region (11212) is provided on a plane where the width and thickness of each permanent magnet (112) are located.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/2753 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity

Abstract

A rotor (110) capable of enhancing demagnetization resistance, a motor (100), a compressor, and a refrigerator. The rotor (110) comprises: a rotor core (111) provided with magnet grooves (1111); a plurality of permanent magnets (112) provided in the magnet grooves (1111), the plurality of permanent magnets (112) surrounding the rotor core (111); magnetic isolation bridges (113) provided between the magnet grooves (1111) where adjacent permanent magnets (112) are located; and a first diffusion region (11211) and/or a second diffusion region (11212) provided on a plane where the width and thickness of the permanent magnets (112) are located.

IPC Classes  ?

• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/2753 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity

Abstract

ii mm21ii ≤ 0.95, and c = 0 or 1.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 1/16 - Stator cores with slots for windings
• H02K 3/28 - Layout of windings or of connections between windings

Abstract

The present application provides a permanent magnet motor, a compressor, and a refrigeration apparatus. The permanent magnet motor comprises a motor rotor (100), a motor stator (200), and a stator winding. The motor rotor (100) comprises a rotor core and a plurality of permanent magnets (110) arranged on the rotor core, and the permanent magnets (110) contain x% of cerium element by mass. The motor stator (200) comprises a stator core surrounding the outer side of the rotor core, and the stator core is provided with a plurality of stator teeth (210) in an inner circumferential direction. The stator winding is wound around each stator tooth (210), the number of turns of the stator winding on each stator tooth (210) is N, and the number of branches connected in parallel in each phase of the stator winding is a. When the connection form of the stator winding on the stator teeth (210) is a Y-shaped connection, N/a satisfies N/a≤5.2(25-x); and when the connection form of the stator winding on the stator teeth (210) is a triangular connection, N/a satisfies N/a≤5.2(25-x)×sqrt(3).

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A motor, a compressor, and a refrigeration device. The motor comprises a rotor (100) and a stator (200). The rotor (100) comprises a rotor iron core and a plurality of permanent magnets (120) provided on the rotor iron core, and the permanent magnets (120) each contain a cerium element having a mass percentage of x%; the stator (200) comprises a stator iron core, Q stator teeth (210) are provided on the stator iron core in the inner circumferential direction, a stator winding is wound on each stator tooth (210), and the number of phases of each stator winding is m; the mass percentage x% of the cerium element meets: 3%≤x%≤10%; the number Q of the stator teeth (210) and the number m of phases of each stator winding satisfy the relationship: Q/m≤3; and the width of magnetic poles of the rotor (100) is bm, and bm satisfies the relationship: bm≥3040/(165-x).

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

Disclosed in the present application are an electric motor and the use thereof. The electric motor comprises a rotor (100) and a stator (200) enclosing the rotor (100). The rotor (100) comprises an iron core (110) and permanent magnets (120) arranged on the iron core (110); the width of an air gap of the electric motor is δ, and the number of magnetic poles in the rotor (100) is 2 P; the permanent magnet (120) contains x % (mass percent) of cerium, and the value of x ranges from 3 to 10; the thickness of the permanent magnets (120) is h, and the sum of the widths of the permanent magnets (120) in each magnetic pole is w, wherein x ≤ 23 * h - 25, 1 + δ ≤ h ≤ 1.4 + δ, and 2.5 * x + 15 ≤ 2P * h * w/5 ≤ 4 * x + 37; and all the units of h, w and δ are mm.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material

Abstract

The present application discloses a motor, a compressor, and a refrigeration device. The motor comprises a stator (110) and a rotor (120). Permanent magnets (123) in the rotor (120) are cerium-containing permanent magnets, the stator (110) comprises a stator core, the stator core has Q stator teeth (111), the length of the stator core is L, and the outer diameter of the stator (110) is D. The motor satisfies: 6*Q*L/D≥x, wherein x% is the mass percentage of cerium contained in each permanent magnet (123).

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 1/14 - Stator cores with salient poles
• H02K 3/18 - Windings for salient poles

Abstract

mmmttmtmm).

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 1/14 - Stator cores with salient poles

Abstract

12122.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

The present application discloses a rotor having magnetic barriers, a motor and a compressor. The rotor having magnetic barriers comprises a rotor iron core, a plurality of cranked slots and a plurality of magnetic barrier groups; the plurality of cranked slots are formed in the rotor iron core and are arranged at intervals along the circumferential direction of the rotor iron core; two ends of each cranked slot extend towards the edge of the rotor iron core; the plurality of magnetic barrier groups are disposed on the sides of the plurality of curved grooves distant from the circle center of the rotor iron core; each magnetic barrier group comprises at least one layer of n magnetic barrier holes arranged at intervals along the circumferential direction of the rotor iron core; a straight-axis magnetic conduction channel is formed between any two adjacent magnetic barrier holes in one layer of magnetic barrier holes; and the width of the straight-axis magnetic conduction channel is d and the distance between two ends of one layer of magnetic barrier holes is D, which satisfy that 1/6≤(n-1)d/D≤4/3.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 1/24 - Rotor cores with salient poles

Abstract

A permanent magnet-assisted synchronous reluctance motor and a compressor. The permanent magnet-assisted synchronous reluctance motor comprises a rotor and a stator; the rotor comprises a rotor core, a plurality of cranked slots, a plurality of permanent magnets, and a plurality of magnetic barrier groups; a first quadrature-axis magnetic conduction channel is formed between a layer of magnetic barrier holes close to a cranked slot and the cranked slot; and one end of the first quadrature-axis magnetic conduction channel has a different width from the other end.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Abstract

Disclosed in the present application are a motor rotor having flux barriers, a motor and a compressor. The motor rotor having flux barriers comprises a rotor core, a plurality of curved grooves and a plurality of flux barrier groups. The plurality of curved grooves are formed in the rotor core and are arranged at intervals in the circumferential direction of the rotor core, two ends of each curved groove extending towards the edge of the rotor core; the plurality of flux barrier groups are arranged on the sides of the plurality of curved grooves away from the circle center of the rotor core, and each flux barrier group comprises at least one layer of a plurality of flux barrier holes which are arranged at intervals in the extending direction of the wall of the curved groove; an included angle formed by connecting lines respectively between two ends of the layer of flux barrier holes and the circle center of the rotor core is a, which satisfies a≥(1/8)*(2π/p), wherein p is the number of poles of the motor where the motor rotor having flux barriers is located.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A compressor housing and a compressor (100) having same. The housing comprises a shell (10), a partition plate (30) and a cover plate (20). The partition plate (30) covers an opening at an upper end of the shell (10), and the cover plate (20) covers an outer side of the partition plate (30). An upper end of a peripheral wall of the shell (10) is stacked on the outer side of an outer peripheral face of the partition plate (30), a lower end of the peripheral wall of the cover plate (20) is stacked on the outer side of the outer peripheral face of the partition plate (30), there is a gap between the upper end of the shell (10) and the lower end of the cover plate (20) so as to expose the outer peripheral face of the partition plate (30), and at least part of a downward projection of an outer peripheral face of the peripheral wall of the cover plate (20) is located on an inner side of an outer peripheral face of the upper end of the peripheral wall of the shell (10).

IPC Classes  ?

• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

Disclosed in the present application are a compressor and a refrigeration apparatus. The compressor (100) comprises a housing (10), an air cylinder (20) and a liquid storage device (30), wherein an oil reservoir (12) is formed at the bottom of the housing (10); the air cylinder (20) is arranged inside the housing (10), and the housing (10) is provided with an air suction port (11) in communication with the air cylinder (20); the liquid storage device (30) is arranged at the lower end or the upper end of the housing (10), an air outlet (33) of the liquid storage device (30) is in communication with the air cylinder (20) by means of the air suction port (11), and the inner diameter of the housing is consistent with that of the liquid storage device; and the height of the liquid storage device is H, the maximum vertical distance from the center of the air suction port (11) to the bottom of the oil reservoir is h, and a relationship between h and H satisfies: 0.1

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/02 - LubricationLubricant separation

Abstract

A housing assembly, a compressor and an air conditioner are provided. The housing assembly has a housing, a temperature sensor and a fixing bracket. The temperature sensor abuts an outer wall of the housing. The fixing bracket has a fixing portion and connection portions located on two sides of the fixing portion. The connection portions are fixedly connected to the housing. A mounting cavity is formed between the fixing portion and the housing. The temperature sensor is located in the mounting cavity. The fixing portion has a top plate and side plates connected to two sides of the top plate. An angle formed between the top plate and each of the side plates is an obtuse angle. Each of the top plate and the side plates abuts the temperature sensor.

IPC Classes  ?

• G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
• F24F 1/56 - Casing or covers of separate outdoor units, e.g. fan guards

Abstract

A housing assembly, a compressor, and an air conditioner are provided. The housing assembly has a housing, a temperature sensor, and a fixing bracket. The temperature sensor abuts an outer wall of the housing. The fixing bracket has a fixing portion and connection portions located on two sides of the fixing portion. Each connection portion is fixedly connected to the housing. A mounting cavity is formed between the fixing portion and the housing. The fixing portion has an inlet end for mounting the temperature sensor in the mounting cavity, and a top plate and two side plates connected to two sides of the top plate. An angle between the top plate and each of the two side plates is an obtuse angle. An opening slot facing away from the inlet end is formed on the top plate and is offset from a centerline of the top plate.

IPC Classes  ?

• F24F 13/32 - Supports for air-conditioning, air-humidification or ventilation units
• F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits

Abstract

A method for manufacturing a liquid reservoir is disclosed. The method includes: preparing a barrel with an open upper end and an open lower end; press-fitting a partition plate into the barrel and welding the partition plate to the barrel by in-furnace brazing; arranging a valve core assembly in a predetermined position within the barrel and press-fitting a limit plate into the barrel to limit the valve core assembly; narrowing the upper end of the barrel to form an air inlet and narrowing the lower end of the barrel to form an air outlet; and coupling an air inlet tube to the air inlet and coupling an air outlet tube to the air outlet.

IPC Classes  ?

• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
• F25B 31/02 - Compressor arrangements of motor-compressor units

Abstract

A compressor (10) and a temperature regulation device having same. The compressor (10) comprises: a housing (1); a cylinder assembly (2) provided in the housing (1), comprising a cylinder provided with a compression cavity, and provided with an air inlet channel in communication with the compression cavity; a liquid storage assembly (3) provided at the lower end of the housing (1), and comprising a liquid storage cavity (31) and a heat insulation cavity (32), the heat insulation cavity (32) being located between the liquid storage cavity (31) and the cylinder assembly (2), and a suction pipe (5) being connected to the liquid storage cavity (31); and an air inlet pipeline (4), an inlet end (411) of the air inlet pipeline (4) being in communication with the liquid storage cavity (31), and an air outlet end of the air inlet pipeline (4) being in communication with the air inlet channel.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

Abstract

A fixed scroll (100) applied to a scroll compressor (300), and a scroll compressor (300). The fixed scroll (100) comprises: a scroll body (10), the scroll body (10) defining a working medium flow groove (11), which has an open end; scroll teeth (12), the scroll teeth (12) being arranged in the working medium flow groove (11) to form a scroll cavity (15); and an oil supply groove (13), which is in the shape of a closed loop, the oil supply groove (13) being arranged on the scroll body (10) and being arranged around the open end of the working medium flow groove (11), and the oil supply groove (13) being suitable for being in communication with an oil output hole (20) of an orbiting scroll (200) of the scroll compressor (300).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/02 - LubricationLubricant separation

Abstract

An exhaust one-way valve (100) for a compressor, and a compressor (1000) having same. The exhaust one-way valve (100) comprises: a valve housing assembly (1) and a valve core assembly (2), wherein the valve housing assembly (1) comprises a valve housing (11) and an exhaust pipe (12), the valve housing (11) being provided with a gas outlet (111), with a gas intake end (121) of the exhaust pipe (12) being inserted into the gas outlet (111); and the gas intake end (121) has a cross-sectional area of S1, the minimum distance between a valve core (21) and the valve housing (11) is d2, and the minimum flow-through area of an exhaust channel (3) is S2, where the ratio of S1 to d2 is 8-25, and/or the ratio of S2 to S1 is 1.2-5. The exhaust one-way valve can reduce adverse effects on the energy efficiency of the compressor.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A one-way valve (100) for a compressor assembly, a compressor (200), and a liquid storage device (300), the compressor assembly (1000) comprising the compressor and the liquid storage device, and at least one of the compressor and the liquid storage device being provided with the one-way valve. The one-way valve comprises a valve housing assembly (1) and a valve core assembly (2), wherein the valve housing assembly comprises a valve seat (11) and an inner housing (12); the valve core assembly comprises a valve core unit (21) and an elastic element (22); and the part where a valve core is in sliding fit with the inner housing is a valve core fitting portion (2110), the part where the inner housing is in sliding fit with the valve core is an inner housing fitting portion (120), and at least one of the valve core fitting portion and the inner housing fitting portion is treated by hardening so as to at least form a surface hardening layer on the corresponding fitting face.

IPC Classes  ?

• F04B 39/10 - Adaptation or arrangement of distribution members

Abstract

A shell assembly, a compressor, and an air conditioner. The shell assembly comprises a shell (100), a temperature sensor (200) and a fixing support (300), wherein the temperature sensor (200) abuts against an outer wall of the shell (100), the fixing support (300) comprises a fixing part (310) and connecting parts (320) located on two sides of the fixing part (310), the connecting parts (320) are fixedly connected to the shell (100), a mounting cavity (301) is formed between the fixing part (310) and the shell (100), the temperature sensor (200) is located in the mounting cavity (301), the fixing part (310) comprises a top plate (311) and side plates (312) connected to two sides of the top plate (311), an included angle between the top plate (311) and the side plate (312) is an obtuse angle, and the top plate (311) and the two side plates (312) all abut against the temperature sensor (200). The shell assembly can effectively fix the temperature sensor, thereby accurately controlling the operation of the compressor.

IPC Classes  ?

• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04B 39/14 - Provisions for readily assembling or disassembling
• F04B 51/00 - Testing machines, pumps, or pumping installations
• G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations

Abstract

A shell assembly, a compressor, and an air conditioner. The shell assembly comprises a shell (100), a temperature sensor (200) and a fixing support (300), wherein the temperature sensor (200) abuts against an outer wall of the shell (100), the fixing support (300) comprises a fixing part (310) and connecting parts (320) located on two sides of the fixing part (310), the connecting parts (320) are fixedly connected to the shell (100), a mounting cavity (301) is formed between the fixing part (310) and the shell (100), the fixing part (310) is provided with an inlet end for the temperature sensor (200) to be mounted in the mounting cavity (301), the fixing part (310) comprises a top plate (311) and two side plates (312) connected to two sides of the top plate (311), an included angle between the top plate (311) and the side plate (312) is an obtuse angle, the top plate (311) is provided with an open groove (3112) facing away from the inlet end, and the open groove (3112) is offset from a center line of the top plate (311). The structure enables the temperature sensor to accurately detect the shell temperature of the compressor, thereby accurately controlling the operation of the compressor.

IPC Classes  ?

• F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
• F24F 11/89 - Arrangement or mounting of control or safety devices
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections

Abstract

The present application provides an electric motor, a compressor, and a refrigeration apparatus. The electric motor comprises: a stator iron core comprising a plurality of iron core blocks spliced in a circumferential direction, each iron core block comprising a plurality of stator laminations stacked in an axial direction of the electric motor; and a rotor iron core comprising a plurality of rotor laminations stacked in an axial direction, wherein the number of the stator laminations is greater than that of the rotor laminations, and the iron loss of each stator lamination is less than that of each rotor lamination. According to the electric motor provided in the present application, under the condition of ensuring the performance and the efficiency of the electric motor, the manufacturing and assembling costs of a rotor of the electric motor are greatly reduced, so that the cost of the electric motor is reduced, and the cost performance of the electric motor is improved.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 1/16 - Stator cores with slots for windings
• H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 3/42 - Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding
• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

Abstract

The present application provides a stator iron core, a motor, a compressor and a refrigeration device. The stator iron core is used in the motor, and the stator iron core comprises a plurality of iron core blocks, the plurality of iron core blocks are sequentially joined along the circumferential direction of the motor, each iron core block comprises at least two iron core sections, and the at least two iron core sections are stacked in the axial direction of the motor. The two sides in the circumferential direction of each iron core section of the at least two iron core sections are respectively provided with a convex part and a concave part; in the circumferential direction, the convex part of any one iron core section of the plurality of iron core blocks is located in the concave part of the adjacent iron core section, and in the axial direction, the adjacent iron core sections of each iron core block comprise a first type of iron core section and a second type of iron core section. The convex part and the concave part of the first type of iron core section are distributed in a first direction, and the convex part and the concave part of the second type of iron core section are distributed in a second direction, the first direction being different to the second direction. The present invention increases the joining precision of the plurality of iron core sections in the axial direction, effectively reducing the inter-piece conduction between the iron core blocks, and improving the overall efficiency of a segmented motor.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• H02K 3/28 - Layout of windings or of connections between windings

Abstract

Provided in the present application are a stator, an electric motor, a compressor, and a refrigeration apparatus. The stator comprises: a stator core comprising a plurality of stator teeth that are arranged at intervals, a stator slot being formed between every two adjacent stator teeth; stator windings, which are wound around the stator teeth and at least partially located in the stator slots; and insulation layers, each of which is arranged in the stator slot, is located between the stator windings and the stator teeth, and divides the stator slot into two regions, the stator windings wound around different stator teeth being located in the two regions of the insulation layer. The insulation layer comprises a first insulation layer configured to separate the stator windings from the stator teeth, and a second insulation layer configured to separate the stator windings wound around different stator teeth, with either end of the second insulation layer being connected to the first insulation layer to divide the space enclosed by the first insulation layer into two regions. According to the stator provided by the present application, the slot filling rate of the stator is increased, and the assembly efficiency of the stator is improved.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 3/52 - Fastening salient pole windings or connections thereto

Abstract

The present application provides a stator iron core, a motor, a compressor, and a refrigeration device. The stator iron core comprises a plurality of iron core blocks; the plurality of iron core blocks are tiled to form a rotor cavity; each of the plurality of iron core blocks comprises a plurality of magnetic conduction pieces that are stacked in the axial direction of the rotor cavity; each magnetic conduction piece comprises a stator yoke and stator teeth; a first riveting portion is arranged on the stator yoke; the first riveting portions of the magnetic conduction pieces that are adjacent in the axial direction in the plurality of magnetic conduction pieces are connected to each other; the stator teeth are connected to the stator yoke; the stator teeth are arranged close to the center of the rotor cavity relative to the stator yoke; the stator teeth are provided with second riveting portions; and the second riveting portions of the magnetic conduction pieces that are adjacent in the axial direction in the plurality of magnetic conduction pieces are connected to each other. The riveting binding force of the second riveting portion is different from the riveting binding force of the first riveting portion, so that a riveting structure is adapted to the stress of the magnetic conduction pieces at different positions, and the overall precision of the iron core block formed by stacking the plurality of the magnetic conduction pieces can be improved, and thus, the overall precision of the stator iron core is ensured, and the manufacturing performance of the motor is improved.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 1/16 - Stator cores with slots for windings
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures

Abstract

The present invention provides an insulating framework, a stator, a motor, a compressor and a refrigeration appliance. The insulating framework is used for the stator, and comprises an insulating yoke and an insulating tooth which are connected. The insulating tooth is used for configuring a stator winding. The insulating tooth comprises a blank section, a first limiting section and a first wire slot. The first limiting section is arranged between the insulating yoke and the blank section. The first wire slot is formed in the first limiting section, and a first part of the stator winding is located in the first wire groove. In the present application, the insulating tooth is not only provided with a first wire slot that restrains the stator winding, but is also provided with a blank section that provides wire arranging freedom for the stator winding. The first wire slot is arranged to realize accurate positioning in the wire arranging process of the stator winding. The blank section provides greater wire arranging freedom. On the premise that the wire is accurately arranged, the wire arranging difficulty of the stator winding is significantly reduced, and the universality and the application scope of the insulating framework are improved.

IPC Classes  ?

• H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
• H02K 1/14 - Stator cores with salient poles
• F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Abstract

The present application provides a motor framework, a stator assembly, a motor, a compressor and a refrigeration device. The motor framework comprises multiple sub-frameworks. A sub-framework comprises: a framework tooth part used to carry a winding; a framework yoke part connected to the framework tooth part; multiple first positioning grooves provided at the framework yoke part and extending along a circumferential direction of the stator assembly; a supporting part, disposed at the framework yoke part and intercepting the sub-framework along the radial direction of the stator assembly, the distance between the periphery of the supporting part and the axis of the stator assembly being H1, the distance between the periphery of the framework yoke part and the axis of the stator assembly being H2, and H1 being larger than H2; and a connecting wire used for connecting windings on two framework tooth parts, the connecting wire penetrating through the first positioning groove and passing through the supporting part, and the supporting part being used to lift the connecting wire in a direction away from the axis of the stator assembly. The supporting part is disposed on the framework yoke part, the connecting wire can pass through the supporting part, and the supporting part provides a function of lifting the connecting wire, so that looseness of the connecting wire can be avoided.

IPC Classes  ?

• H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 1/2706 - Inner rotors
• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
• F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure

Abstract

Provided are a stator structure (102), an electric motor structure (100), a compressor structure (200), and a refrigeration apparatus (300). The stator structure comprises: a stator core (1022), the stator core comprising a stator yoke (1023) and a plurality of stator teeth (1024), which extend inwards in a radial direction from the stator yoke (1023); a first recess (1026), which is formed in a side wall on the side of the stator yoke (1023) away from an axis of the stator core (1022); and a second recess (1030), which is formed in the first recess (1026), the second recess (1030) extending from the recess bottom of the first recess (1026) toward the axis of the stator core (1022), wherein the depth of the first recess (1026) is not greater than half of the thickness of the stator yoke (1023), and the depth of the second recess (1030) is not greater than half of the thickness of the stator yoke (1023). The noise of an electric motor can be greatly improved, and the high-frequency carrier noise can be greatly reduced.

IPC Classes  ?

• H02K 1/12 - Stationary parts of the magnetic circuit
• H02K 1/16 - Stator cores with slots for windings

Abstract

Provided in the embodiments of the present application are a stator structure, an electric motor structure, a compressor structure, and a refrigeration apparatus. The stator structure comprises: a stator core, the stator core comprising a stator yoke and a plurality of stator teeth, which extend inwards in a radial direction from the stator yoke; a first recess, which is formed in a side wall on the side of the stator yoke away from an axis of the stator core; and a second recess, which is formed in the first recess, the second recess extending from the recess bottom of the first recess to the axis of the stator core, wherein the second recess comprises: first grooves and second grooves, which are formed at intervals in the circumferential direction of the stator core, and the projection areas of the first grooves are different from the projection areas of the second grooves on an end face of the stator core. In the technical solution of the present application, the noise of an electric motor can be greatly improved, and particularly the high-frequency carrier noise can be greatly reduced.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/27 - Rotor cores with permanent magnets

Abstract

A pump body (100) and a compressor, the pump body (100) comprising a crankshaft (1) and a first bearing (2). The crankshaft (1) is provided with an eccentric portion (12), the first bearing (2) is provided with a shaft hole (20), and the crankshaft (1) is assembled in the shaft hole (20). A side of the first bearing (2) facing the eccentric portion (12) is provided with a first thrust portion (22), and a side of the crankshaft (1) facing the first bearing (2) is provided with a second thrust portion (121). The first thrust portion (22) comprises a first hardened region (23), a hardness value of the first hardened region (23) being greater than hardness values of other regions on the first bearing (2), the second thrust portion (121) comprises a second hardened region (122), a hardness value of the second hardened region (122) being greater than hardness values of other locations on the crankshaft (1), and the first hardened region (23) and the second hardened region (122) abut each other. Wear resistance of the eccentric portion (12) and the first bearing (2) is improved, and both the eccentric portion (12) and the first bearing (2) do not wear easily, thereby ensuring wear resistance of the pump body (100) and the compressor, improving the structure and operating reliability.

IPC Classes  ?

• F16C 17/08 - Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A refrigeration system comprises a compressor assembly, a high-pressure pipeline (200) and a low-pressure pipeline (300). The compressor assembly comprises multiple compressors connected in parallel. The high-pressure pipeline (200) is connected to an exhaust end of the compressor assembly, and a first heat exchanger (210) is provided in the high-pressure pipeline (200). The low-pressure pipeline (300) is connected to an air intake end of the compressor assembly, and a second heat exchanger (310) is provided in the low-pressure pipeline (300). A throttling component (400) is disposed between the low-pressure pipeline (300) and the high-pressure pipeline (200). At least one compressor is a first compressor (100), the first compressor (100) being provided with a first air inlet pipe (110) and a first exhaust pipe (120). At least one of the first air inlet pipe (110) and the first exhaust pipe (120) is provided with a first control valve (130). The first air inlet pipe (110) and the first exhaust pipe (120) are in communication via a first pressure relief valve (140).

IPC Classes  ?

• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F25B 31/00 - Compressor arrangements
• F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
• F25B 41/24 - Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part

Abstract

Provided are a motor, a compressor, and a refrigeration device. The motor comprises: a stator (100), provided with 12 stator tooth portions (110), a stator slot (120) being defined between two adjacent stator tooth portions; and a rotor (200), provided with 8 permanent magnets (210). Each stator tooth portion is provided with an arc end surface (111) facing the rotor, the arc end surface of each stator tooth portion is provided with an auxiliary groove (220), a center line of each stator tooth portion divides the auxiliary groove of the stator tooth portion into a first region (A1) and a second region (A2) along the reverse direction of a first rotation direction, and the area of the first region is smaller than the area of the second region. The first rotation direction (S) is the rotation direction of the motor. The technical solution of the present application is capable of reducing the noise of the motor in the refrigeration device.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings

Abstract

A motor, a compressor, and a refrigeration device. The motor comprises: a stator (100), provided with 12 stator tooth portions (110), a stator slot (120) being defined between two adjacent stator tooth portions (110), each stator tooth portion (110) being wound with a first preset number of turns of electromagnetic wire; and a rotor (200), provided with 8 ferrite permanent magnet mounting slots (210), each ferrite permanent magnet mounting slot (210) being mounted with a ferrite permanent magnet (220), the width direction of the ferrite permanent magnet (220) corresponding to the radial arrangement of the rotor (200), and the width of the ferrite permanent magnet (220) being a first width (221). The product of the first preset number of turns and the first width (221) is not greater than 1000mm.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings
• H02K 1/27 - Rotor cores with permanent magnets
• H02K 3/18 - Windings for salient poles
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Abstract

A balance block (100), a scroll compressor, and an air conditioner, the balance block (100) comprising: a mounting part (110), the mounting part (110) being provided with a mounting hole (111), and the mounting hole (111) being used for mounting a crankshaft of a scroll compressor; a counterweight part (120) arranged on the mounting part (110) and extending along the axial direction of the mounting hole (111) to one side of the mounting part (110), the counterweight part (120) comprising: a first arc surface (121) and a second arc surface (122), the second arc surface (122) being disposed further from the mounting hole (111) than the first arc surface (121), the cross section of the first arc surface (121) being a first arc segment and the cross section of the second arc surface (122) being a second arc segment, and there being spacing between the centre of the circle in which the first arc segment is located and/or the centre of the circle in which the second arc segment is located and the central axis of the mounting hole (111).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/04 - HeatingCoolingHeat insulation
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A compressor and a refrigeration system are provided. The compressor has a shell, an air cylinder assembly and a pressure relief device. The shell has a containing cavity. The air cylinder assembly is disposed in the containing cavity, and has an air suction cavity and a pressure relief channel. The pressure relief channel communicates with the air suction cavity and the containing cavity, and has a pressure relief opening. The pressure relief device is connected with the air cylinder assembly. The pressure relief device moves in the axis direction of the pressure relief channel, so as to open or close the pressure relief opening.

IPC Classes  ?

• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A stator assembly, an electronic expansion valve, and a refrigeration device are provided. The stator assembly has a housing, a coil assembly and a fixing member. An outer surface of the housing is provided with an installation opening. The coil assembly is provided in the housing, and has a shell for mounting a coil. The fixing member is inserted through the installation opening to be fixedly connected with the shell, and the is configured to connect with the conducting tube of the electronic expansion valve to electrically conduct the shell and the conducting tube.

IPC Classes  ?

• F25B 41/34 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F16K 51/00 - Other details not peculiar to particular types of valves or cut-off apparatus

Abstract

A nut, an electronic expansion valve, a stop structure of the electronic expansion valve, and a refrigeration device are provided. The nut has a pipe body and a connection seat. An outer peripheral wall of a first end of the pipe body is provided with a limiting snap protrusion. The connection seat is connected to the first end of the pipe body. A first avoidance interval is provided between the limiting snap protrusion and the connection seat for installing a first stop of the spring guide rail.

IPC Classes  ?

• F16K 1/52 - Means for additional adjustment of the rate of flow
• F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
• F25B 41/345 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids

Abstract

A nut (10), an electronic expansion valve (1000), a stopping structure (100) thereof, and a refrigeration device. The stopping structure (100) comprises a spring guide rail (20) and the nut (10). The nut (10) comprises: a pipe body (11), the outer peripheral wall of a first end of the pipe body (11) being provided with a limiting protrusion (111) protruding outward; and a connecting base (12), the connecting base (12) being connected to the first end of the pipe body (11). A first accommodating interval (a1) is provided between the limiting protrusion (111) and the connecting base (12) for mounting a first stopping part (22) of the spring guide rail (20).

IPC Classes  ?

• F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces Details
• F16K 1/02 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
• F25B 41/34 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators

Abstract

A stator assembly (100), an electronic expansion valve, and a refrigeration device. The stator assembly (100) comprises a housing (110), a coil assembly (120), and a fixing member (130); an outer surface of the housing (110) is provided with a mounting port (111); the coil assembly (120) is disposed within the housing (110), and the coil assembly (120) comprises a metal casing (121) for the mounting of a coil (122); and the fixing member (130) is inserted into the metal casing (121) by passing through the mounting port (111) and is fixedly connected to the metal casing (121), and the fixing member (130) is adapted to be connected to a connecting tube of the electronic expansion valve, so as to electrically connect the metal casing (121) and the connecting tube.

IPC Classes  ?

• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• F25B 41/35 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
• H02K 3/46 - Fastening of windings on the stator or rotor structure
• H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

A compressor (100) and a refrigeration system. The compressor comprises: a housing (110) which includes an accommodating cavity (150); a cylinder assembly (120) arranged in the accommodating cavity, the cylinder assembly comprising a suction cavity (160) and a pressure relief channel (126), the pressure relief channel being communicated with the suction cavity and the accommodating cavity, and the pressure relief channel having a pressure relief port; and a pressure relief device (130) connected to the cylinder assembly, the pressure relief device moving along the axial direction of the pressure relief channel to open or close the pressure relief port, wherein the through-flow area of the pressure relief device satisfies: 0

IPC Classes  ?

• F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A baffle plate for a compressor, a compressor, and refrigeration apparatus are provided. The baffle plate has a plate body, a through hole and a connection part. The through hole is formed in the plate body. The plate body extends from the through hole in a direction deviating from the axis of the through hole. The connection part is connected with the plate body and is used for connecting the plate body to a non-rotating member. A fixed baffle plate is arranged in the compressor, to physically block the gas flow and form a space for stabilizing the refrigerant oil or lubricant oil on one side of the baffle plate corresponding to the oil sump. The space can isolate the disturbance from spiral flow of a lower cavity to the oil sump caused by the rotation of the motor when the compressor operates.

IPC Classes  ?

• F04C 29/06 - Silencing
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F04C 29/02 - LubricationLubricant separation

Abstract

A liquid reservoir, a method for manufacturing the liquid reservoir, and a compressor having the liquid reservoir are disclosed. The liquid reservoir has a barrel, an air inlet tube, an air outlet tube, and a valve. The valve has a partition plate arranged in the barrel. An outer periphery of the partition plate is coupled to an inner peripheral wall of the barrel to divide the internal space of the barrel into an air inlet chamber and an air outlet chamber. The partition plate has a valve hole communicating the air inlet chamber with the air outlet chamber. A limit plate is arranged in the air outlet chamber and at least partially spaced apart from the partition plate. An outer periphery of the limit plate is coupled to the inner peripheral wall of the barrel. The limit plate has a connection hole and a guide hole.

IPC Classes  ?

• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
• F25B 31/02 - Compressor arrangements of motor-compressor units

Abstract

A fixed scroll plate assembly (100), a scroll compressor (200) and refrigeration device. The fixed scroll plate assembly (100) comprises: a plate body (110) provided with a compression channel (111); an enthalpy increasing channel (117) arranged on the plate body (110), the enthalpy increasing channel (117) being used to communicate with an enthalpy increasing pipeline (210) of the scroll compressor (200); an enthalpy spray channel (112) arranged on the bottom wall of the plate body (110), the enthalpy spray channel (112) being communicated with the compression channel (111) and the enthalpy increasing channel (117) and comprising a flow blocking portion which is used to block gas in the compression channel (111) from flowing back to the enthalpy increasing channel (117). The flow blocking portion is used to block gas in the compression channel (111) from flowing back to the enthalpy increasing channel (117), effectively attenuating the propagation of the gas flow in the compression channel (111) to the enthalpy increasing pipeline (210), weakening the intensity of pressure pulsation in the enthalpy increasing pipeline (210), achieving the technical effect of reducing the pressure pulsation level in the enthalpy increasing pipeline (210), and solving the problems of fracture at the position where the enthalpy increasing pipeline (210) is connected to a shell of the scroll compressor (200) and fracture of a valve plate due to strong pulsation produced by the refrigerant gas in the enthalpy increasing pipeline (210).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A cylinder assembly, a compressor, and a refrigeration device. The cylinder assembly comprises a cylinder (10), an air guide plug (20), and a driving mechanism (30). The cylinder (10) is provided with an air suction hole (11) and an air guide slot (12) to form a backflow channel (13) for communicating the air suction hole (11) with the air guide slot (12); the driving mechanism (30) drives the air guide plug (20) to move towards the cylinder (10) to a first position, or to move facing away from the cylinder (10) to a second position; the communication between the air guide slot (12) and the backflow channel (13) is blocked when the air guide plug (20) moves to the first position; the backflow channel (13) is communicated with the air guide slot (12) when the air guide plug (20) moves to the second position. The edge of the junction of the air guide slot (12) and an inner wall of the cylinder (10) is connected to the peripheral edge of the end of the air guide plug (20) facing the cylinder (10). The air guide plug (20) can close a position where the air guide slot (12) is communicated with the air cylinder (10), and prevent gas from entering the backflow channel (13), so that the cylinder assembly has a better working state.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels

Abstract

A rotary compressor and a refrigeration cycle device are provided. The rotary compressor includes a housing, an exhaust pipe and a suction pipe. The housing accommodates a motor and a compression mechanism. The exhaust pipe is communicated with a high-pressure side of the refrigeration cycle device and coupled to the housing. The suction pipe is communicated with a low-pressure side of the refrigeration cycle device and coupled to the compression mechanism. The compression mechanism has a bypass device. When the motor is stopped, gas of the housing flows into the suction pipe or a low-pressure circuit communicated with the suction pipe.

IPC Classes  ?

• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels

Abstract

A liquid reservoir, a method for manufacturing the liquid reservoir, and a compressor having the liquid reservoir are disclosed. The liquid reservoir has a barrel, an air inlet tube, an air outlet tube, and a valve. The valve has a partition plate arranged in the barrel. An outer periphery of the partition plate is coupled to an inner peripheral wall of the barrel to divide the internal space of the barrel into an air inlet chamber and an air outlet chamber. The partition plate has a valve hole communicating the air inlet chamber with the air outlet chamber. A limit plate is arranged in the air outlet chamber and at least partially spaced apart from the partition plate. An outer periphery of the limit plate is coupled to the inner peripheral wall of the barrel. The limit plate has a connection hole and a guide hole.

IPC Classes  ?

• F25B 31/00 - Compressor arrangements
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

An accumulator and a manufacturing method therefor, and a compressor having an accumulator. The accumulator comprises a cylindrical body (1), an air inlet pipe (2), an air outlet pipe (3), and a valve (4); the valve (4) comprises a partition (41) and a retainer (42); the partition (41) is arranged in the cylindrical body (1); the outer periphery of the partition (41) is connected to the inner peripheral wall of the cylindrical body (1) to divide the inner space of the cylindrical body (1) into an air inlet cavity (101) and an air outlet cavity (102); the partition (41) is provided with a valve hole (411) for communicating the air inlet cavity (101) with the air outlet cavity (102); the retainer (42) is arranged in the air outlet cavity (102) and at least partially spaced apart from the partition (41); the outer periphery of the retainer (42) is connected to the inner peripheral wall of the cylindrical body (1); the retainer (42) is provided with communicating holes (421) and guide holes (422). The accumulator is low in production cost, suitable for mass production, and high in durability.

IPC Classes  ?

• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
• F25B 31/00 - Compressor arrangements

Abstract

A compressor, a compressor operation control method and a refrigeration device. The compressor comprises: a housing (110), which is configured to be a containing cavity provided with an air vent (112); a pump body (120), disposed in the containing cavity and comprising an air suction chamber, a capacity changing chamber and an exhaust chamber which communicate with one another, the exhaust chamber being in communication with the containing cavity; a liquid storage device (130), disposed outside the housing (110) and communicating with the air suction chamber; and a valve module (200), arranged outside the housing (110) and at least comprising a first port, a second port and a third port, the first port being in communication with the capacity changing chamber, the second port being in communication with the air suction chamber, and the third port being in communication with the exhaust chamber or the containing cavity. According to the compressor, the communicating states of the first port, the second port and the third port are switched by means of the valve module so as to adjust the pressure state of the capacity changing chamber in order to achieve a full-capacity operating mode and a partial-capacity operating mode of the compressor. The compressor is simple in structure and low in cost.

IPC Classes  ?

• F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves

Abstract

A rotary double-cylinder air compression mechanism and a double-cylinder single-air suction compressor. The rotary double-cylinder air compression mechanism comprises a first cylinder (100), a middle partition (200), and a second cylinder (300) which are arranged in sequence along a first direction; a first compression chamber (110) is formed in the first cylinder (100); the periphery of the first cylinder (100) is formed with an air suction hole (101) arranged along a second direction; an air inlet (102) arranged along the second direction and communicated with the air suction hole (101) is formed on the wall of the first compression chamber (110); an air outlet (103) communicated with the air inlet (102) is formed on the side surface of the first cylinder (100) in contact with the middle partition (200); on a cross section perpendicular to the first direction, the length of the air outlet (103) in the second direction is smaller than the length of the air outlet (103) in a direction perpendicular to the second direction; the second direction is perpendicular to the first direction. According to the rotary double-cylinder air compression mechanism, the reliability of insertion of a taper pipe on the air inlet is improved to avoid leakage of compressed air, and the mechanical strength of the first cylinder (100) in the circumferential direction is guaranteed.

IPC Classes  ?

• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A compressor and a refrigeration device are disclosed. The compressor has a sealing container, a motor portion and a compressing mechanism portion, and a bypass valve. The motor portion and the compressing mechanism portion are both provided in the sealing container. The compressor has an exhaust side and a suction side spaced apart from each other. The exhaust side is connected to the bypass valve. The exhaust side is suitable for exhausting air to external parts through the bypass valve, or suitable for communicating with the suction side through the bypass valve.

IPC Classes  ?

• F25B 41/26 - Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

A compressor (100) and a refrigeration system. The compressor comprises: a housing (110) which includes an accommodating cavity (150); a cylinder assembly (120) arranged in the accommodating cavity, the cylinder assembly comprising a suction cavity (160) and a pressure relief channel (126), the pressure relief channel being communicated with the suction cavity and the accommodating cavity, and the pressure relief channel having a pressure relief port; and a pressure relief device (130) connected to the cylinder assembly, the pressure relief device moving along the axial direction of the pressure relief channel to open or close the pressure relief port, wherein the through-flow area of the pressure relief device satisfies: 0

IPC Classes  ?

• F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels

Abstract

1 and L is cm.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 3/18 - Windings for salient poles
• H02K 3/28 - Layout of windings or of connections between windings

Abstract

2)≤0.96.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• H02K 1/14 - Stator cores with salient poles

Abstract

Provided are a baffle plate for a compressor, a compressor, and a refrigeration apparatus. The baffle plate (100) comprises a plate body (102), a through hole (104), a connection portion (106), a flange (108), an arc transition portion (110), an exhaust through hole (112) and an assembly avoidance hole (114), wherein the through hole (104) is provided in the plate body (102), and the plate body (102) extends from the through hole (104) in a direction away from an axis of the through hole (104); the connection portion (106) is connected to the plate body (102) and is used for connecting the plate body (102) to a non-rotating member; the flange (108) is connected to an outer edge of the plate body (102); the arc transition portion (110) is connected between the plate body (102) and the flange (108); a radius of curvature of the arc transition portion (110) is 1 mm to 6 mm, and a central angle is 35 0to 145 0; and the exhaust through hole (112) and the assembly avoidance hole (114) are provided in the plate body (102). The baffle plate can create physical isolation for airflow flowing; a space for stabilizing a lubricating oil is formed at the side of the baffle plate that corresponds to an oil pool; a disturbance, of the lower cavity rotational flow caused by the rotation of an electric motor, to the oil pool is isolated; and fluctuations of an oil surface at the bottom of the compressor are reduced, such that oil drops caused by fluctuations are reduced, and the situation that excess lubricating oil is carried to an upper part of the electric motor by an airflow due to violent fluctuations of the oil surface is avoided.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/02 - LubricationLubricant separation

Abstract

A rotor, a motor and a compressor are provided. The rotor has multiple first punches and multiple second punches, which are stacked to form a rotor core of the rotor. Multiple openings are provided in each of the first punches and second punches along a circumferential direction of the rotor. The openings divide the first punches and the second punches into a rotor yoke and multiple pole caps. The pole caps are arranged around the outer circumference of the rotor yoke. The openings extend in an axial direction of the rotor core to form a plurality of slots. Multiple magnets are arranged in the slots in a one-to-one correspondence. Each first punch includes one or more connecting ribs. Each connecting rib is disposed between adjacent two pole caps. At least two of the openings of each second punch communicate with each other.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A rotary compressor and a refrigeration cycle device. The rotary compressor (1) comprises a housing (2); a motor (6) and a compression mechanism portion (5) are accommodated in the housing (2); an air discharging pipe (3) communicated with a high-pressure side of the refrigeration cycle device is connected to the housing (2), and an air suction pipe (13) communicated with a low-pressure side of the refrigeration cycle device is connected to the compression mechanism portion (5); the compression mechanism portion (5) is provided with a bypass device (30). After the motor (6) is stopped, air in the housing (2) flows into the air suction pipe (13) or a low-voltage loop communicated with the air suction pipe (13).

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 29/06 - Silencing

Abstract

A motor and a compressor having the motor are provided. The motor has a stator and a rotor. The stator has a circular tubular stator core having an inner diameter and an outer diameter. The ratio k of the inner diameter to the outer diameter satisfies k>0.5. The rotor is provided in the cylindrical space formed by the stator core and has a rotor core and a magnetic member provided on the rotor core. The exhaust volume V of the compressor, the mass M of the rotor core and the magnetic member, and the maximum radius of an outer edge of the rotor satisfy 2

IPC Classes  ?

• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
• F25B 31/02 - Compressor arrangements of motor-compressor units
• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/16 - Stator cores with slots for windings

Abstract

This present disclosure provides a compressor and a refrigeration device having the compressor. The refrigeration device has a coupling assembly and a frequency converter connected to one end of the coupling assembly. The compressor has a first shell and a permanent magnet motor. The permanent magnet motor is set in the first shell and connected to the other end of the coupling assembly. By designing the relevant parameters of the motor of the compressor, the efficiency of the motor and the compressor can be improved.

IPC Classes  ?

• F25B 31/02 - Compressor arrangements of motor-compressor units
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02P 6/182 - Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings

Abstract

An electric motor including a motor rotor and a motor stator including a stator core including a plurality of stator teeth spaced along a circumferential direction of the stator core, a plurality of coil groups, wherein each of the plurality of coil groups includes a plurality of coils wound on a corresponding stator tooth, and an incoming line terminal and an outgoing terminal both comprising a same number of coil ends, and two motor lead groups, wherein a number of the plurality of motor leads of each of the two motor lead groups is equal to a number of the plurality of coil groups, and wherein each of the plurality of motor leads is connected to one incoming line terminal or one outgoing line terminal of one corresponding coil group of the plurality of coil groups.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• H02K 1/16 - Stator cores with slots for windings
• H02K 1/2706 - Inner rotors
• H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

Abstract

Disclosed are a permanent magnet motor, a compressor and a refrigeration system. In the permanent magnet motor, the diameter D of a contour circle of the smallest inner periphery of a stator, the diameter d of a contour circle of the largest outer periphery of a rotor, the fundamental wave amplitude Bm1 of an air-gap flux density at an average gap between the stator and the rotor, the axial length L of the rotor, the total number of serially connected turns Ns of each phase winding, and a bus DC voltage Udc of a frequency converter supplying power to the permanent magnet motor before inversion are set as: 0.003 Udc≤(D+d)×L×Bm1×Ns≤0.008 Udc.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/14 - Stator cores with salient poles
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

3.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/16 - Stator cores with slots for windings
• H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• H02K 3/48 - Fastening of windings on the stator or rotor structure in slots
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A rotary compressor and a refrigeration cycle device. The rotary compressor (1) comprises a housing (2); a motor (6) and a compression mechanism portion (5) are accommodated in the housing (2); an air discharging pipe (3) communicated with a high-pressure side of the refrigeration cycle device is connected to the housing (2), and an air suction pipe (13) communicated with a low-pressure side of the refrigeration cycle device is connected to the compression mechanism portion (5); the compression mechanism portion (5) is provided with a bypass device (30). After the motor (6) is stopped, air in the housing (2) flows into the air suction pipe (13) or a low-voltage loop communicated with the air suction pipe (13).

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 29/06 - Silencing

Abstract

A slide component (10), comprising: a sliding part (110); and a rolling part (120), the rolling part (120) being welded to the sliding part (110). By configuring the slide component to be composed of the rolling part (120) and the sliding part (110) which are in a split structure, the overall processing difficulty is reduced, and the processing efficiency is improved; moreover, the occurrence of a contact gap between the rolling part (120) and the sliding part (110) and phenomena such as wear and dislocation generated thereby are avoided, and the accuracy and reliability of the slide component (10) are improved. Also provided are a compressor having the slide component (10) and a refrigeration device.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A compressor and a refrigeration device are disclosed. The compressor has a sealing container, a motor portion and a compressing mechanism portion, and a bypass valve. The motor portion and the compressing mechanism portion are both provided in the sealing container. The compressor has an exhaust side and a suction side spaced apart from each other. The exhaust side is connected to the bypass valve. The exhaust side is suitable for exhausting air to external parts through the bypass valve, or suitable for communicating with the suction side through the bypass valve.

IPC Classes  ?

• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F25B 30/02 - Heat pumps of the compression type
• F25B 41/00 - Fluid-circulation arrangements
• F25B 49/00 - Arrangement or mounting of control or safety devices

Abstract

11111 211 and L is cm.

IPC Classes  ?

• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Abstract

A compressor (1) and a refrigerator. The compressor (1) comprises: a sealed container (11); a motor portion and a compressing mechanism portion which are disposed in the sealed container (11); and a by-pass valve (6). The compressor (1) has a gas exhaust side and a gas suction side that are separated from each other; the gas exhaust side is connected to the by-pass valve (6) and is applicable to discharge gas to an external part by means of the by-pass valve (6) or to be communicated with the gas suction side by means of the by-pass valve (6).

IPC Classes  ?

• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
• F25B 41/00 - Fluid-circulation arrangements
• F25B 49/00 - Arrangement or mounting of control or safety devices
• F25B 30/02 - Heat pumps of the compression type
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors

Abstract

Disclosed are an air conditioner, a compressor (100), and a motor for a rotary compressor. The motor comprises a stator core (10) and a rotor core (20), the center of the stator core (10) has a through hole (10a), the stator core (10) is provided with a plurality of circumferentially spaced stator teeth (11), and the number of stator teeth (11) is M; the rotor core (20) is rotatably disposed in the through hole (10a), and the rotor core (20) is provided with a plurality of circumferentially spaced rotor slots (21), and the number of the rotor slots (21) is N, wherein 2≤N-M≤6; the cross-sectional area of the stator core (10) is denoted as S, and the distance between corresponding two end points of two curved segments (23) arranged oppositely is denoted as L, wherein 0.93≤4*S/3.14/L2≤0.96.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 1/26 - Rotor cores with slots for windings

Abstract

The present application discloses a stator (1), a single phase induction motor, a compressor, and a refrigeration device. The stator (1) comprises: a stator core (1a) and main windings (20a) and auxiliary windings (20b) wound into two poles in stator grooves. There are 28 stator grooves, and the stator grooves comprise a plurality of first stator grooves (1b) and second stator grooves (1c). The stator grooves are sequentially distributed from a first group to an eighth group along a circumferential direction of the stator core (1a). The first group of stator grooves, the third group of stator grooves, the fifth group of stator grooves, and the seventh group of stator grooves comprise two first stator grooves (1b). The second group of stator grooves and the sixth group of stator grooves comprise four second stator grooves (1b). The fourth group of stator grooves and the eighth group of stator grooves comprise six second stator grooves (1c). The outer circumference of the stator core (1a) has a tangent side corresponding to the first stator grooves 1(b).

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto

Abstract

The invention provides a rotor, a motor and a compressor. The rotor comprises a plurality of first stamped steels and a plurality of second stamped steels; the plurality of first stamped steels and the plurality of second stamped steels are stacked to construct a rotor iron core; a plurality of openings are circumferentially disposed on the plurality of first stamped steels and the plurality of second stamped steels, respectively; the plurality of openings divide the plurality of first stamped steels and the plurality of second stamped steels into a rotor yoke and a plurality of polar caps; the plurality of opening run through in an axial direction of the rotor iron core to form a plurality of slots; a plurality of magnets are disposed in the plurality of slots; The first stamped steels comprise at least one connecting stiffener; an arbitrary connecting stiffener is disposed between adjacent two of the plurality of polar caps; and at least two opening in the second stamped steels are communicated with each other. The first stamped steels and the second stamped steels having different structures with the first stamped steels are used in the present invention such that flux leakage of the rotor is effectively reduced, the flux density amplitude of an air gap is increased, the copper consumption is lowered and the motor performance is improved.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

Disclosed are a stator core (100), a stator (200) and a motor. The stator core (100) comprises a plurality of iron core sheets (1), the plurality of iron core sheets (1) are in stacked arrangement in an axial direction of the stator core (100), and each iron core sheet (1) is of an annular structure and comprises a plurality of sheet punching segments (11) successively arranged end to end in a circumferential direction; a seam (10) is formed between two adjacent sheet punching segments (11), and the seam (10) of the n layer and the seam (10) of the n+m layer are arranged in the axial direction of the stator core (100) in a staggered manner, where n and m are both positive integers, and n and m respectively satisfy n ≥ 1 and m ≥ 1; and the seam (10) is formed as a straight line segment.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles

Abstract

Disclosed are a switch power supply and a switch tube protection circuit thereof. The switch tube protection circuit comprises: a detection module for detecting a bus voltage on a bus of a switch power supply, and when the bus voltage is greater than a set bus voltage threshold value, outputting a first control signal, and when the bus voltage is equal to or less than the set bus voltage threshold value, outputting a second control signal; and a control module, connected to the detection module and used for turning off the output of a switch tube when receiving the first control signal, and maintaining the output of the switch tube when receiving the second control signal. The circuit can turn off a switch tube in a switch power supply when overvoltage of the switch power supply occurs, thereby effectively reducing the influence of a bus voltage fluctuation and a power-on surge voltage on the switch power supply, further reducing the failure rate of the switch power supply due to the overvoltage of the switch tube, and improving the reliability of the switch power supply; and the circuit is also low in cost.

IPC Classes  ?

• H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers
• H02H 3/20 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage

Abstract

Provided are an over-voltage protection circuit for a switching power supply, the switching power supply, and a compressor. The over-voltage protection circuit comprises: a first voltage sampling module, with one end of the first voltage sampling module being connected to a bus of a switching power supply and the other end thereof being grounded; a switch module connected to the first voltage sampling module; a second voltage sampling module, with one end of the second voltage sampling module being connected to an auxiliary winding of the switching power supply and the other end thereof being grounded; and a comparison circuit, with an input end of the comparison circuit being connected to the second voltage sampling module and being connected to the first voltage sampling module by means of the switch module, and an output end of the comparison circuit being connected to a control apparatus of the switching power supply. According to the present application, where the protection pins of a switching power supply are limited, only one protection pin is used, double-voltage sampling is used, input and output double-over-voltage protection is realized, and thus the impact of grid voltage fluctuation and a power-on impulse voltage on the switching power supply is effectively reduced.

IPC Classes  ?

• H02H 7/10 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers
• H02M 1/32 - Means for protecting converters other than by automatic disconnection

Abstract

Disclosed are a protection system of a refrigeration device and a protection method for the safe operation of a compressor. The protection system comprises: a measurement module (100), wherein the measurement module (100) is used for measuring real-time data of a refrigeration cycle; a data collection module (200), wherein the data collection module (200) is electrically connected to the measurement module (100), and is used for collecting the real-time data measured by the measurement module (100); and a control module (300), wherein the control module (300) is electrically connected to the data collection module (200), and is electrically connected to a compressor (10), and the control module (300) is configured to control the powering-on or powering-off of the compressor (10) according to the real-time data collected by the data collection module (200).

IPC Classes  ?

• F24F 11/89 - Arrangement or mounting of control or safety devices
• F24F 11/00 - Control or safety arrangements
• F24F 110/00 - Control inputs relating to air properties
• F24F 110/10 - Temperature
• H02H 7/08 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors

Abstract

A motor for a compressor, comprising: a stator comprising a stator core (2), wherein the stator core (2) is circular tubular, and a ratio k of the inner diameter to the outer diameter of the stator core (2) satisfies k>0.5; and a rotor (4) provided in the cylindrical space formed by the stator core (2). The rotor (4) comprises a rotor core (42) and a magnetic member (44). The magnetic member (44) is provided on the rotor core (42). The exhaust volume V of the compressor, the mass M of the rotor core (42) and the magnetic member (44), and the maximum radius of an outer edge of the rotor (4) satisfy 2

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings
• H02K 1/27 - Rotor cores with permanent magnets
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Abstract

A compression mechanism (100) and a compressor comprising same. The compression mechanism (100) comprises: a cylinder (10) having a first working chamber (11), a slide vane slot (12), and an air valve slot (13), the first working chamber (11) being provided with a first suction port (111) and a first vent port (112), the air valve slot (13) being disposed at an outer end of the slide vane slot (12) and communicated with the slide vane slot (12), and the size of the air valve slot (13) in the thickness direction of the slide vane slot (12) being greater than the thickness of the slide vane slot (12); a piston (20) disposed in the first working chamber (11) and capable of eccentric rotation therein; a slide vane (30) disposed in the slide vane slot (12) and capable of reciprocating motion therein, the front end of the slide vane (30) abutting against the piston (20), and the portion of the slide vane slot (12) at the tail end of the slide vane (30) forming a second working chamber (14); and an air valve assembly (40) disposed in the air valve slot (13), the air valve assembly (40) being provided with a second suction port (411) and a second vent port (412) that can be opened/closed and are communicated with the second working chamber (14).

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet