Electrical contact arrangement for an electric motor and method for producing same. The present invention relates to an electrical contact arrangement for an electric motor, in particular for an EC drive of a motor vehicle fan, comprising an elongate contact which runs perpendicular to a planar basic conductor, wherein the basic conductor is in the form of a leadframe, and a conductive cohesive and/or form-fitting and/or force-fitting connection is provided between the leadframe and the contact. The present invention also relates to a method for the production of said electrical contact arrangement.
H01R 4/24 - Connections using contact members penetrating or cutting insulation or cable strands
H05K 1/18 - Printed circuits structurally associated with non-printed electric components
H01R 12/53 - Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
The invention relates to a protection device for use in an electrical circuit of an electric machine, particularly an electric motor, having a holding device which is designed to receive an hold power supply devices for feeding the electrical current, the holding device being made of a first material with a first melting temperature T1, and temperature protection device, which is designed to protect the electrical circuit from an overtemperature and which is made of a second material with a second melting temperature T2, wherein the first material and the second material are selected, and/or the temperature protection device is arranged, in such a manner that the electrical circuit is automatically interrupted when at least one of the melting temperatures T1, T2 is reached, wherein the ratio of the first melting temperature T1 to the second melting temperature T2 is in range of greater than 1.2 to equal to 1.50. The invention also relates to an electrical drive arrangement having such a protection device.
H01H 85/48 - Protective devices wherein the fuse is carried or held directly by the base
H02K 13/00 - Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windingsDisposition of current collectors in motors or generatorsArrangements for improving commutation
H02K 11/25 - Devices for sensing temperature, or actuated thereby
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
3.
SYNCHRONOUS MACHINE AND METHOD FOR OPERATING A SYNCHRONOUS MACHINE
The invention relates to a method for operating a synchronous motor (15) comprising a stator and comprising phase windings (U, V, W) with a drive device (16) for the phase windings, a measuring device (33) and a closed-loop control device (17) for the closed-loop control of the drive device (16), wherein for complexity- and effect-optimized closed-loop control, the measuring device (33) detects exclusively electrical variables at the phase windings of the synchronous motor (15) and/or in the drive device (16), the value of a variable which is representative of the load angle between the stator field and the rotor or the value of the load angle is determined from this, and a manipulated variable of the closed-loop control device (17, 37) is determined exclusively from the discrepancy between the determined values and a setpoint value, for bringing the load angle close to the setpoint value for the load angle.
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
H02P 6/18 - Circuit arrangements for detecting position without separate position detecting elements
H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
4.
Electric motor having a commutator and brushes in sliding contact therewith
An electric motor for moving a vehicle part, the electric motor having a stator with a stator housing, a drive shaft rotatable with respect to the stator, a rotor on the drive shaft and having a rotor winding, a commutator on the drive shaft for supplying an electric current to the rotor winding, at least two brushes mounted on the stator housing, the brushes in sliding contact with the commutator for supplying electric current to the rotor winding, a bushing mounted on the drive shaft adjacent to the commutator, and a cone element mounted on the drive shaft adjacent to the bushing on a side of the bushing facing away from the commutator, the cone element having an outer surface which conforms to the shape of a cone concentrical to the drive shaft and having a tip pointing away from the bushing.
H02K 5/14 - Means for supporting or protecting brushes or brush holders
H02K 13/00 - Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windingsDisposition of current collectors in motors or generatorsArrangements for improving commutation
The invention relates to a fan (34) of a motor vehicle, which fan (34) is, in particular, a main fan of an internal combustion engine. The fan (34) comprises a fan wheel (2) with an outer ring (10) which has a substantially L-shaped ring cross section with the formation of a radial limb (14) and an axial limb (12). The radial limb (14) has a cross-sectional enlargement (16) on the free-end side.
A drive motor, in particular for a fan wheel of a radiator of a motor vehicle, is provided. The drive motor comprising a stator, and a rotor rotating about an axis of rotation relative to the stator, which is driven in cooperation with the stator. Means for generating an air flow for cooling at least one component of the drive motor are arranged on the rotor.
H02K 9/00 - Arrangements for cooling or ventilating
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
F04D 25/08 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 3/51 - Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
7.
ELECTRIC MACHINE AND METHOD FOR WINDING A COIL OF AN ELECTRIC MACHINE
The present invention relates to an electric machine, in particular a brushless permanent magnet motor, comprising a stator which has a plurality of teeth with at least one needle-wound winding phase, wherein the at least one winding phase comprises at least two windings on adjacent teeth, which are arranged in series, and wherein the at least two windings have each at least one winding layer. According to the invention, a needle line is provided, which is formed between the at least two windings by a crossing section of the at least two windings and which is at least partially filled. The present invention further relates to a method for winding a coil.
The invention relates to a method for producing a housing assembly (1), in particular for an electric machine, wherein a region (26) of a closure part (3) is reshaped in the form of an indentation (26'), in order to thus press material of the closure part (3) against a housing part (16) for a non-positive engagement between the closure part (3) and the housing part (16).
The invention relates to a two-component impeller wheel (4; 14; 24; 34; 44; 54; 64; 74; 84). The impeller wheel has a hub (5; 15; 25; 35; 45; 55; 65; 75; 85) which is provided with a coupling device (8; 18; 28; 38; 48; 58) for coupling the hub to the rotor of a drive motor. At least one first impeller-wheel region (1, 1'; 11; 21; 31; 41, 41'; 51; 61; 71, 71'; 81) is configured with a first material component, whereas at least one second impeller-wheel region (2; 12; 22; 32; 42; 52; 62; 72; 82) is configured with a second material component. Here, the first and the second material component have different specific acoustic impedances. The first and the second impeller-wheel region are extruded in one piece with one another. At least one sharp boundary surface (3, 3'; 13, 13'; 23, 23'; 33; 43, 43'; 53; 63, 63'; 73, 73'; 83) is provided between the first and the second impeller-wheel region. Solid-borne vibrations which are introduced via the coupling device are reflected at least partially at the boundary surface. Solid-borne vibrations which propagate into the two-component impeller wheel (4; 14; 24; 34; 44; 54; 64; 74; 84) are advantageously reduced as a result in the impeller wheel according to the invention.
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT (Germany)
Inventor
Hampel, Klaus
Knorr, Jürgen
Mathes, Detlev
Pangerl, Michael
Abstract
The invention relates to adjusting and locking the position of a guide rail for a movable windowpane in a vehicle door. The invention further relates to a device (100), to a vehicle door (10) fitted with same, and to a tool (200) provided for adjusting and locking. A first mounting plate (110) on the rail side and a second mounting plate (120) on the door side are provided in the vehicle door (10) and connected to each other by means of mounting means (130, 131) that can be screwed together. One (120) of the mounting plates comprises an engaging element (125) for an eccentric lever (212), bringing about mutual translatory displacement of the mounting plates (110, 120) directed in an adjusting direction (Y) when rotated. Said mounting plate (120) further comprises a first slotted hole (121) extending in the adjusting direction (Y), in which one (130) of the mounting means that can be screwed is displaceably received, wherein at least one (131) of the mounting means is designed as a rotary bearing for the eccentric lever (212), whereby the eccentric lever (212) can be designed as a part of a separate tool (200).
E05F 11/38 - Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
The invention relates to an adjustable safety steering column for a motor vehicle, comprising at least one clamping device (100), which has a leg spring (130) for fixing the length of the adjustable steering column. The leg spring clamps onto a casing tube (110) for a steering shaft (110) at a position that can be adjusted by releasing the leg spring (130), the casing tube being inserted in the clamping device (100). At least in the vicinity of one end of the leg spring (130), at least one stop element (141, 142, 143) is arranged, against which the leg spring (130) stops in the event of an axial movement (V) of the casing tube (110) toward the accommodating tube, whereby the winding of the leg spring (130) assumes a tilted position that can be limited. Thus, an adjustable crash function is implemented.
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
12.
ELECTRIC MOTOR FOR DRIVING A MOTOR VEHICLE COMPONENT
The invention relates to an electric motor (1) for driving a motor vehicle component, in particular a fan motor for chilling cooling water, comprising a rotor (2) that includes a commutator (3), against which a brush (5) rests in a contacting manner, and a plastic-sheathed pressed screen (10) for forming a current path (9) that is engraved in an electric insulation (24) and is connected to the brush (5). The current path (9) conducting the motor current (IM) is interrupted to form two spaced-apart current path ends (11a, b), the interruption point (12) being bridged by a contact spring (13) that is used as a temperature fuse and consists of two spring legs (13a, b), each of which has a fixing end (14a, b) and a free end (15a, b). Each fixing end (14a, b) of the spring legs (13a, b) is connected to a current path end (11a, b), while the free ends (15a, b) thereof are in contact with each other using a soldered connection (16) so as to bias the spring.
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
H01R 39/59 - Means structurally associated with the brushes for interrupting current
H02H 7/085 - 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 against excessive load
13.
STATOR FOR AN ELECTRIC MOTOR AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to a stator (17) for an electric motor, comprising a number of stator sheets (2) stacked in a star-shaped laminated sheet package (1), which stator sheets comprise stator sheets (2a) closed in the circumferential direction having individual teeth (10) connected to each other by means of pole shoe webs (11) and stator sheets (2a) open in the circumferential direction having individual teeth (10) spaced from each other to form a gap (9) on the pole shoe side. A bottom starting block (12) in the stacking direction (4) is formed by two closed stator sheets (2a), while a repetitive block (13) is adjacent thereto, the repetitive block having open stator sheets (2b) and closed stator sheets (2a) in N identical repetitive sequences (14), wherein each repetitive sequence (14) comprises n directly consecutive open stator sheets (2b) having a gap (9) on the pole shoe side and at least one closed stator sheet (2a). The laminated sheet package (1) further comprises a terminating block (15) made of at least one closed stator sheet (2a), wherein an intermediate block (16) is provided between the repetitive block (13) and the terminating block (15), the intermediate block comprising either no stator sheet (2) or a closed stator sheet (2a) and/or a gap (9) on the pole shoe side of m open stator sheets (2b), where 1 ≤ m ≤ n-1, depending on a specified total sheet stack height (H).
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention concerns a rotor for an electric motor, the rotor comprising a rotor shaft (1), a rotor coil (2) and a commutator (3). The rotor coil (2) comprises a coil wire with insulation, particularly lacquered insulation; the commutator (3) is configured as a hook commutator having commutator lamellae (4) and commutator hooks (5) for the coil ends (6) of the rotor coil (2). The coil ends (6) are connected to the inner faces (7, 8) of the respective commutator hook (5) during hot-pressing. It is proposed that at least one inner face (7, 8) of each commutator hook (5) has a surface structure that, on engagement with the respective coil end (6), causes a point- and/or line-stress on the coil end (6), thus resulting in targeted damage, in particular the elimination of the insulation at the coil end (6).
The invention relates to a stator for an electric motor comprising a base body (1), consisting of stator plates (3) which are stacked axially in relation to a motor axis (2) and frame-like coil bodies (5) which support a plurality of stator windings (4), and the coil cross-sectional surfaces (6) which are essentially aligned to the motor axis (2). According to the invention, in order to mount said coil bodies (5), it is possible to initially place them diagonally, in relation to the end position, on the coil body receiving elements (7) of the base body (1), and to align them in the end position. The arrangement is designed such that the alignment is accompanied with an axial deformation of the stator plates (3).
In an electro-motor drive, in particular for a fan drive of a motor vehicle, comprising a commutator motor (1), the motor shaft (4) of which is rotatably mounted on axially opposing sides (BS, AS) in shaft bearings (9, 10) covered by means of a bearing shield (7, 8), a damping system (14) is arranged on the bearing side of the or each shaft bearing (9, 10) facing away from the bearing shield (7, 8) in order to dampen the sound, in particular of bearing play-related contact noise and vibration or humming noise.
The invention relates to an electric motor of a drive arrangement in a motor vehicle, having a stator (1) and a rotor (3) disposed within the stator (1) and rotationally supported in a rotor bearing (2), wherein a motor housing (4) is provided and wherein the motor housing (4) receives the stator (1) and at least one part of the rotor bearing (2) and fundamentally ensures the concentric alignment between the stator (1) and rotor (3), wherein the motor housing (4) is engaged with the stator (1) at least some of the time by means of a separate centering arrangement (6) aligned to the motor axis (5), such that in case of particularly temperature-induced clearance between the motor housing (4) and the stator (1), the concentric alignment between the stator (1) and the rotor (3) is ensured.
The invention relates to a drive motor, particularly for a fan of a cooler of a motor vehicle, having a stator and a rotor rotating about a rotary axis relative to the stator. Means (430) are thereby disposed on the rotor (4) for generating an air flow (L) for cooling at least one component (2, 3, 40, 44) of the drive motor (1). In this manner, a drive motor is provided that allows cooling of the components thereof in a simple and efficient manner while minimizing the components required therefor.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
An electric motor (01) comprising a magnetic circuit (09) is described. At least part of said magnetic circuit (09) contains a material that concentrates a path of lines of magnetic flux (07). According to the invention, the magnetic circuit (09) is optimized at least by adjusting the cross-section of the flux path at least of the part of the magnetic circuit (09) at the stator end to the maximum magnetic flux (07) locally occurring in said part of the magnetic circuit (09) during normal operation of the electric motor (01) by adjusting the local cross-sectional dimensions of a material (05, 06) that concentrates at least part of the flux path at the stator end and/or forms at least part of the magnetic circuit (09) at the stator end.
A device, in particular for flow guidance, comprising a heat-generating element, in particular a component (1) through which a current flows, in particular for high output, comprising a flow-guiding element, in particular a guide plate (2) and/or a guide grating, to which the heat-generating element is attached, comprising a heat-dissipating means, in particular a heat sink (3) that is thermally coupled to the flow-guiding element for the purpose of dissipating heat, in particular heat resulting from frictional losses, wherein the thermal coupling of the heat-dissipating means, in particular the heat sink (3), is accomplished by way of a medium (10) for smoothing out unevenness, in particular an elastic medium, wherein a depression (6) that has a predefined depth (7) is made in the heat-dissipating means, in particular the heat sink (3), in an area of a potential difference (23) between a position of the flow-guiding element proximate to the heat-dissipating means and the heat-dissipating means, in particular the heat sink (3), said depression being substantially filled with a thermally conducting medium (5) at least in an area of contact (8) with the area of the potential difference (23).
The invention relates to a DC commutator motor for a drive device, especially in a motor vehicle. Said commutator motor comprises a stator having a plurality of stator poles, an armature rotor having a plurality of armature teeth which are arranged on the periphery of the armature rotor with interposed rotor grooves, individual tooth coils being provided on every armature tooth, a commutator, one respective end of an individual tooth coil being connected to a respective lamella of the commutator, a respective number of lamellae being interconnected by bridges, and the number of lamellae being a multiple of the stator poles and a multiple of the number of pole pairs of the stator poles. The invention further relates to an anti-lock braking device.
Apparatus, in particular for conducting current, having a heat-generating element (1), in particular a component through which current flows, in particular for high powers, having a current-conducting element (2), in particular a conductor grid to which the heat-generating element is applied, and having a heat-dissipating means (3), in particular a heat sink which, in order to dissipate heat, in particular as a result of power loss, is thermally coupled to the current-conducting element, wherein the heat-dissipating means should be thermally coupled using a layer (4) comprising a heat-conducting, in particular plastic, solid medium, in particular a metal layer, and at least one insulation layer (5) for at least partial electrical insulation between the current-conducting element and the solid medium layer is provided between the current-conducting element and the solid medium layer.
The magnet core of a rotating electric machine comprises a stack of sheet metal disks (2) which each have an annular yoke (4), a group of magnet pole elements (6) facing the yoke (4), and a group of openings (12) between the yoke (4) and at least one of the magnet pole elements (6). Each magnet pole element (6) has a projecting circumferential section (16) which is attached to the annular yoke (4) in the vicinity of one end (14) by means of a connecting web (10).
The invention relates to a method and a circuit arrangement for operating a permanently excited synchronous motor, especially for a radiator fan in a motor vehicle. In said method, the synchronous motor is triggered by an inverter circuit designed as a center-tap connection in such a way that the AC motor is operated in a deceleration mode via the center-tap connection. The invention further relates to a radiator fan module comprising such a circuit arrangement.
A fan-motor unit (1) comprises a fan (12) driven by an electric motor (11), both mounted on a support ()16), at least one inlet (I) and one outlet (S) for a forced air flow, an electronic circuit board (13) for controlling the motor (11), and a radiator (14) at least partially immersed in the forced air flow. The radiator (14) has a curved peripheral edge (143) determining a convex face (141) and a concave face (142) of the said radiator, the electronic circuit board being in contact with the said radiator on the concave face side and a substantially cylindrical bearing surface (144) on the convex face side of the said radiator. A radial gasket (18) that forms a skirt comprises a first end secured to the support (16), a free second end, and a substantially cylindrical interior face (181) between the first and second ends, and the interior face (181) of the radial gasket (18) bears against the bearing surface (144) so as to isolate the electronic circuit board (13) from the air flow.
The invention relates to a belt-tensioning drive which has an electric motor containing a rotor shaft, and has a gear shaft and an output gear. The electric motor drives the gear shaft via a first gearing. The gear shaft, for its part, drives the output gear via a second gearing. The gear shaft is mounted in a gearbox via two bearings. An end region of the rotor shaft is mounted in a cup bearing which is placed in a cup bearing seat of the gearbox.
A steering housing (1) is provided with a steering shaft (2) and a belt pulley (3) fixed to the steering shaft. An electric motor (6), which has a motor housing (4) and a motor shaft (5), is supported in an opening (1a) of the steering housing. The motor shaft and the steering shaft extend parallel to each other. An end region of the motor shaft protrudes into the steering housing and is provided with a belt pulley (7) that is fixed to the motor shaft. The belt pulley of the steering shaft is connected to the belt pulley of the motor shaft by a belt (8). The motor housing is supported in the opening of the steering housing by means of a end shield (4a), wherein the end shield has an eccentric neck region (4a1), so that by rotating the end shield relative to the steering housing the belt can be tensioned.
The invention relates to a drive unit, which comprises a steering rod, a recirculating ball drive, which has a recirculating ball nut, and an electric motor comprising a stator and a rotor, wherein the motor is arranged in the coaxial direction of the steering rod adjacent to the recirculating ball drive. The rotor on the side facing the recirculating ball drive comprises a flange (4a), with which the recirculating ball nut (2) of the recirculating ball drive is tightly connected using screws (5).
Specified is an electric motor (9) which is particularly suitable for a motor vehicle servo steering system (7), the electric motor having a permanently excited rotor (12) and having a stator (14) which surrounds said rotor (12), wherein the stator (14) has a stator core (15) composed of an electrical sheet with a mean grain size (K) of at least 140 &mgr;m.
The invention relates to a permanent magnet rotor, which has a rotor shaft, a rotor stack fixed on the rotor shaft, accommodating pockets provided in the rotor stack and permanent magnets positioned in the accommodating pockets. The accommodating pockets are sealed by means of an adhesive film, as a result of which the permanent magnets are fixed in the accommodating pockets and at the same time the ingress of particles into the accommodating pockets and the discharge of particles out of the accommodating pockets is prevented.
The invention relates to a permanent magnet rotor that comprises a rotor shaft, a rotor packet that is secured to the rotor shaft and that has a radially inner area and a radially outer area, receiving pockets provided in the rotor packet between its radially inner area and its radially outer area and permanent magnets that are positioned in the receiving pockets. Recesses are provided in the radially inner area of the rotor packet. The permanent magnets are fixed in the associated receiving pocket by means of a projection of the partial area of the inner area that lies between the respective recess and the respective receiving pocket.
A servodrive (1) has a motor unit (2) and a transmission unit (3). The motor unit (2) has a commutator (5), which is fixed on the motor shaft (4). The transmission unit (3) has a transmission housing (6) made from plastic, which is produced by means of an injection-moulding process. A brush system (7) for making contact with the commutator (5) is arranged between the motor unit (2) and the transmission unit (3). According to the invention, the brush system (7) is also encapsulated by injection moulding with the plastic of the housing during the injection-moulding process of the transmission housing (6). In accordance with one embodiment, the servodrive (1) has a control unit (8), which is connected to the brush system (7) and which is also injection-moulded when the transmission housing (6) is injection-moulded.
The invention relates to an electric motor comprising a rotor (7), a rotor shaft (12), a stationary magnetic field sensor (17) for detecting a change in the direction and/or intensity of a magnetic flux, a stationary magnet (18) which generates the magnetic flux such that at least some of the magnetic flux penetrates the magnetic field sensor (17), and a commutator (11) for supplying a triggering current for the drive unit. The commutator (11) is provided with a flux deflecting element (14, 20) in order to deflect the magnet-generated magnetic flux through the magnetic field sensor (17) in accordance with the position of the rotor shaft (12).
H02K 13/00 - Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windingsDisposition of current collectors in motors or generatorsArrangements for improving commutation
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
In the case of an actuating drive (1), in particular for a motor vehicle, having an electric motor (2) with a motor housing (4) and having a printed circuit board (3) connected to it for control electronics for motor control and for suppression means for suppression of electromagnetic interference of the electric motor (2), a flexible connection element (11) which is composed of an electrically conductive plastic is provided with a first contact end (12), which is designed to make contact with the motor housing (4), and with a second contact end (14), which is designed to make a contact connection with the printed circuit board (3).
A brush system (1) of an electric motor (2), with at least one contact brush (3) with a spring limb (6), which bears a brush contact (5), has a damping element (13), which is connected to the spring limb (6) for the purpose of damping its oscillations.
The present invention relates to a method for the laser machining, particularly for laser soldering or laser welding, of bodies (2), wherein the bodies (2) comprise highly reflective surfaces and at least one common main surface normal, and wherein a processing laser beam (1) along said main surface normal shines on at least one position of the bodies (2) to be machined. Adjoining components are to be protected from damage by the laser beam (1) and from the developing heat in a simple and effective way. This is achieved by shaping at least one of the bodies (2) such that the laser beam (1) is reflected back to the direction of incidence. The present invention is particularly suitable for welding conductor tracks on three-dimensional circuit boards and motor connections.
The invention relates to a rotor for an electric motor, comprising a rotor shaft, a rotor core stack that is attached to the rotor shaft, a ring member which surrounds the rotor core stack, and a gap located between the rotor core stack and the ring member. Adhesive is introduced into the gap for fastening the ring member to the rotor core stack. Molded articles that are used as spacers are admixed to the adhesive.
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 1/30 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
The invention specifies a circuit arrangement (1,20) for controlling a brushless electric motor (37) with a control chip (2), particularly a microcontroller, which has a number of PWM contacts (8), which can be used to output a PWM signal, and a number of commutation contacts (5,5`,6,6`,7,7`), which can be used to output a commutation signal. In this case, provision is made for at least one commutation contact (5,5`,6,6`,7,7`) to be alternately controllable as an input and an output, for the at least one commutation contact (5,5`,6,6`,7,7`) to have its output electrically connected to a PWM contact (8), and for the commutation contact (5,5`,6,6`,7,7`) connected in this manner to be able to be contacted for the purpose of tapping off a control signal. Such a circuit arrangement (1,20) increases the control options for a given control chip (2). The number of PWM sources required is reduced.
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
39.
METHOD AND CIRCUIT ARRANGEMENT FOR CONTINUOUSLY SUPPLYING POWER TO A BRUSHLESS ELECTRIC MOTOR
The invention relates to a method for controlling a brushless electric motor comprising a plurality of winding branches (21,22,23) and a circuit arrangement (1) suitable therefor. The temporal progression of the clamping potential (Uu, Uv, Uw) is produced respectively by clocked switches between a low and a high electric potential. At least one of the clamping potentials (Uu, Uv, Uw) is constantly produced in time segments in a variation free manner by switches on one of the electric potentials, and the additional clamping potentials (Uu, Uv, Uw) are produced by modifying the clocking. According to the invention, in the temporal progression, the clamping potentials (Uu, Uv, Uw) are constantly produced in an alternating manner in accordance with the variable of the respectively associated clamping flow. As a result, switching losses are reduced.
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
40.
METHOD AND DEVICE FOR DETERMINING THE POSITON OF THE ROTOR OF A BRUSHLESS AND SENSORLESS ELECTRIC MOTOR
The invention relates to a method carried out with simple means for determining the position of the rotor in a sensorless and brushless multi-phase electric motor (1) in addition to a device particularly suitable for carrying out said method. According to said method, a phase voltage (Uv) on the clamping side on said motor phase is to be detected after clamping a first motor phase (V) from the reference potentials (UZ,M) of an intermediate circuit (7) during a detection period (TE), via which the detection period (TE) determines a peak value (Uv*) of the detected phase voltage (Uv), the peak values (Uv*) are to be compared to the comparative value (Uc), and a positon signal (SP) is to be produced when the peak value (Uv*) exceeds the comparative value (U0). The comparative value (Uc) is then determined digitally such that it corresponds to the value of the phase voltage (Uv) at a zero crossing of a voltage (UVind) induced in the first motor phase (V) or an increased or lowered value in relation to a predefined correction value (ﶴQ).
The invention relates to a spindle nut for a motor vehicle adjustment device which is designed and provided for installation in a spindle drive of a motor vehicle adjustment device and which has a basic structure which is sufficiently solid to take up and pass on adjustment forces, and an internal thread (20) which can be placed in engagement with a threaded spindle of the spindle drive. According to the invention there is provision for the base structure to be embodied as a load-bearing structure (1) which surrounds an engagement region (2), composed of plastic and provided with the internal thread (20), of the spindle nut and which is composed of a different material than the engagement region (2).
B60N 2/06 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
42.
ELECTRIC MOTOR AND METHOD FOR MANUFACTURING AN ELECTRIC MOTOR FOR A MOTOR VEHICLE ACTUATOR DRIVE
The invention relates to an electric motor and a method for manufacturing an electric motor for a motor vehicle actuator drive. The electric motor has a motor housing, a rotor module, and a stator module. The stator module has stator teeth with a notch at the back of each tooth. A fastening pin is inserted into each of these notches to secure the stator module in the motor housing.
An apparatus (21) is proposed for magnetization of permanent magnets (6) in an electrical machine, with a number of first permanent magnets (6) in each case representing a magnetic north pole (N) and a number of second permanent magnets (6) in each case representing a magnetic south pole (S), with the apparatus (21) having a number of magnet poles (23) for simultaneously supplying a magnetic flux to exclusively permanent magnets (6) of the same polarity. This results in very fast and homogeneous magnetization of permanent magnets (6) in an electrical machine. The electrical machine is, in particular, a brushless DC motor with an annular arrangement of the permanent magnets (6) on the rotor (1).
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
The invention relates to a belt-tensioning drive which has an electric motor, a gear shaft and an output wheel. The electric motor drives the gear shaft via a first gear which is a worm gear. The gear shaft, for its part, uses a second gear to drive the output wheel which is connected in a rotationally fixed manner to the winding shaft of the seatbelt. This second gear is also a worm gear.
The invention relates to a brush system for a motor vehicle actuating drive, with a base body, a board to which suppression components are attached, and electrically conductive plug contacts. The plug contacts each have a holding slot. The board is inserted into the holding slots of the plug contacts.
H02K 5/14 - Means for supporting or protecting brushes or brush holders
H02K 11/02 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
46.
STATOR OF A DC MACHINE WITH CUBOIDAL PERMANENT MAGNETS
The invention relates to an electrical machine (1) with a stator (3) that comprises a number of pole shoes (8) separated from one another and a number of permanent magnets (9) correlated with the pole shoes (8), and with a rotor (2) rotatable around a rotational axis (5) and interacting with the stator (3). The invention particularly relates to a DC motor equipped with a brush system. To find a method in which permanent magnets (9), in particular economically producible cuboidal permanent magnets (9), can be used in a stator (3) of such a machine (1) without this leading to an increased motor volume, it is proposed that adjacent pole shoes (8) of differing polarities have a receptacle opening (1) between them that is preferably completely filled by a permanent magnet (9).
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 23/04 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
H02K 21/28 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets
47.
CONNECTION MODULE FOR CONNECTING A CONTROL UNIT OR SIMILAR TO A DRIVE UNIT
The invention relates to a constructively simple and inexpensive option for connecting a control unit (3) or similar to a drive unit (2) by means of a connection module (1) comprising a housing (6). A plurality of electrically conductive, rod-shaped first contact elements (11) and a plurality of electrically conductive, rod-shaped second contact elements (12) are arranged inside (9) the housing. The connection areas (19) of the first and second contact elements (11, 12) are embodied for producing an electric connection with the control unit (2) and point in the direction of the control unit (3), the contact areas (21) of the first contact element (11) are associated with an opening (25) of the housing (6), said contact areas being opposite to the connection areas (19) and point in the direction of the drive unit (2) and are embodied as contacts (33) for connecting to the drive unit. The contact areas (21) of the second contact elements (12) are arranged at a distance from the opening (25) of the housing (6) in the inside (9) of the housing (6) and point in the direction of the drive unit (2) and are connected directly to the connections (38) of a magnetic-field sensitive signal signalling device (40).
The invention relates to an operating element (20) of a drive device (2), sealed by means of a lid (18). The lid (18) includes a cover surface (22) and a mechanical seal (24), arranged on the cover surface (22) such as to be recognisably mechanically altered on manual operation of the operating element (20). The broken seal (24) thus provides proof of manipulation of the operating element (20).
The invention relates to a radio-suppressed drive unit (1), in particular for driving a motor vehicle fan, having an electric motor (2) and a control unit (3) connected to the electric motor (2). In order to achieve particularly simple and cost-effective radio suppression, particularly in the VHF band, the invention provides for the heat sink (4) of the control unit (3) to be electrically connected to the earth connecting line (6) of the electric motor (2).
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