Disclosed are a three-dimensional wound core utilizing an amorphous alloy and a manufacturing method therefor. The three-dimensional wound core comprises core single frames and reinforcing members. Each core single frame comprises an inner support frame and a material strip group. The material strip group is wound around the inner support frame. The material strip group is provided with two first fitting surfaces, and each first fitting surface is provided with a first recess. The reinforcing members are arranged in one-to-one correspondence with the first fitting surfaces. Each reinforcing member is provided with a second fitting surface, the second fitting surface is provided with a first protruding part, and the first protruding part engages and mates with the first recess. Three core single frames are provided, and the three core single frames are arranged in an equilateral triangular configuration and are connected to each other by means of coils. Two first fitting surfaces between every two adjacent core single frames are arranged opposite to each other, and the two reinforcing members between the two first fitting surfaces abut and mate with each other. The inner support frames mate with the reinforcing members, effectively enhancing the mechanical strength and deformation resistance of the core and reducing the manufacturing and assembly difficulty of the core.
H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
2.
THREE-DIMENSIONAL INTEGRATED MODULAR CHARGING STATION AND INSTALLATION METHOD THEREFOR
A three-dimensional integrated modular charging station and an installation method therefor. The three-dimensional integrated modular charging station comprises a power distribution module, a power supply module and a load module. The power distribution module comprises a high-voltage power distribution component, a transformer component and a low-voltage power distribution component (160), wherein the high-voltage power distribution component is suspended above a rack (270); the transformer component is disposed at the upper portion of the rack (270), the transformer component comprises a high-voltage incoming copper busbar, a transformer (150) and a low-voltage outgoing copper busbar, which are connected to each other in sequence, the high-voltage incoming copper busbar being electrically connected to an output end of the high-voltage power distribution component; and the low-voltage power distribution component (160) is arranged in the middle of the rack (270), the low-voltage power distribution component (160) comprises a low-voltage incoming cabinet (280) and a low-voltage outgoing cabinet (290). The power supply module comprises a power supply cabinet (180) and a lifting seat (210), wherein the lifting seat (210) is arranged at the lower portion of the power supply cabinet (180), and the power supply cabinet (180) is mounted at the lower portion of the rack (270) by means of the lifting seat (210), the power supply cabinet (180) being electrically connected to an output end of the low-voltage outgoing cabinet (290). The load module is arranged on one side of the rack (270). The present apparatus can solve the problem of a charging station having a long installation cycle and occupying a large area.
The present application relates to a new type coil structure and a manufacturing method therefor. The new type coil structure comprises an inner coil, an insulating cylinder layer, an outer coil, and first angular rings, wherein the inner coil is arranged at an inner side of the insulating cylinder layer in a surrounding manner; the outer coil is arranged at an outer side of the insulating cylinder layer in a surrounding manner; and two first angular rings are provided in such a way that annular structures are formed by means of insulating tapes being wound around the two first angular rings and the two first angular rings are respectively positioned at two ends of the outer coil. By means of the first angular rings being respectively arranged at the two ends of the outer coil, the electric field intensity at the end portions of the outer coil can be reduced, such that the electric insulation performance of the new type coil structure is improved. In addition, since the first angular rings are directly formed by means of winding the insulating tapes, the phenomenon of a reduction in the insulation performance of the first angular rings due to same prone to being dampened is avoided, such that the overall electrical insulation performance of the new type coil structure is relatively stable, and the reliability of the insulation performance is thus higher.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
4.
HEAT DISSIPATION STRUCTURE FOR VOLTAGE TRANSFORMATION APPARATUS, AND POWER ROOM REBUILDING METHOD
The present invention relates to a heat dissipation structure for a voltage transformation apparatus, and a power room rebuilding method. The voltage transformation apparatus comprises a transformer and a heat dissipation structure (10), wherein an accommodating cavity is formed in the heat dissipation structure (10), and is used for accommodating the transformer; the heat dissipation structure (10) is provided with air inlets and an air outlet; the air inlets and the air outlet are all in communication with the accommodating cavity; the air inlets are used for being aligned with the bottom of the transformer; and the air outlet is used for being aligned with the top of the transformer.
The present invention relates to the technical field of transformer stations. Disclosed is an oil-immersed transformer. The transformer comprises a transformer core, a case, a low-voltage sleeve and a high-voltage sleeve, wherein the case is hexagonal, the hexagonal case comprises long side walls and short side walls which are arranged in a staggered manner, a first mounting base is arranged at the top end of a long side wall, a second mounting base is arranged at the bottom end of a short side wall, and the long side wall provided with the first mounting base and the short side wall provided with the second mounting base are oppositely arranged; the transformer core is mounted inside the case; the low-voltage sleeve is mounted on the second mounting base and is electrically connected to the transformer core; and the high-voltage sleeve is mounted on the first mounting base and is electrically connected to the transformer core. The transformer can reduce the size of the whole structure without changing the performance such as loss and temperature rise, and is convenient for a user to install and use.
A heat treatment method for an amorphous alloy wound core. The method comprises the following steps: preparing wound cores (200) to be annealed; placing at least one of the wound cores into an accommodating cavity of a first container (100), wherein a conductor (500) passing through an inner window is provided on the wound core (200), a liquid heat-conducting medium (110) is provided inside the accommodating cavity of the first container (100), and the wound core (200) is submerged in the heat-conducting medium (110); using a direct-current power supply apparatus (600) to introduce a direct current into the conductor (500), and also using a heating apparatus (300) to heat the heat-conducting medium (110), so as to raise the temperature of the heat-conducting medium (110); after the temperature of the heat-conducting medium (110) rises to the annealing temperature of the wound core (200), adjusting an output from the heating apparatus (300) to maintain the temperature of the heat-conducting medium (110) at the annealing temperature of the wound core; and turning off the direct-current power supply apparatus (600) and the heating apparatus (300), completing annealing, and taking the wound core (200) out of the accommodating cavity. In the heat treatment method for an amorphous alloy wound core, a liquid heat-conducting medium is used to perform heat-conducting annealing, thereby achieving the effects of the annealing time being short, saving on costs and reducing energy consumption. Further disclosed in the present application is a heat treatment device for an amorphous alloy wound core.
A transformer (100), comprising: a base (110), a transformer body (120), and a clamping assembly (130). The clamping assembly is mounted on one side of the base, a clamping gap (131) is formed on the clamping assembly in a vertical direction, and the transformer body is supported on the clamping assembly and is clamped in the clamping gap. The clamping assembly can clamp the transformer body (120) by adjusting the size of the clamping gap, and the clamping assembly does not shield the heat dissipation area of an iron core (121) and a coil (122), and the production process has no harm to the environment, thereby facilitating shortening the production process and reducing the labor intensity, thus improving the production efficiency and reducing the cost.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
Disclosed are a method and device for winding a foil coil of a stereoscopic wound iron core transformer. The device includes a rotating assembly, a driving device and a plurality of loading assemblies; the rotating assembly is provided with a through hole matched with an iron core post, the rotating assembly is provided with a gear plate and a track ring around the through hole, and the gear plate and the track ring are fixedly connected by a fixing block; the loading assembly includes a cylinder and a tension device, and the cylinder is movably connected with the rotating assembly; and a driving end of the driving device is connected with the gear plate.
H01F 7/06 - Électro-aimantsActionneurs comportant des électro-aimants
H01F 41/063 - Enroulement de feuilles ou de fils conducteurs plats avec isolation
H01F 41/076 - Formation de prises ou de bornes lors de l’enroulement, p. ex. par enveloppement ou par brasage du fil sur les broches, ou en formant directement des bornes à partir du fil
H01F 41/094 - Dispositifs de mise en tension ou de freinage
A winding die is disclosed, including: a gear baffle, where a middle portion of the gear baffle is provided with a first opening for placing an iron core post, and the gear baffle is provided with a first surface; and a cylinder, where the cylinder is arranged on the first surface of the gear baffle and connected with the gear baffle. The middle portion of the gear baffle is provided with the first opening for placing the iron core post, the gear baffle is fixedly connected with the cylinder, an external device is connected with a gear, and the cylinder on the gear baffle is driven to rotate around the iron core post by pulling the gear, so that a foil or an insulating material on the cylinder can be wound on the iron core post, finally realizing a foil winding.
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
A winding cylinder of a stereoscopic wound iron core transformer is disclosed, including an outer cylinder, an inner cylinder and a tension assembly. The outer cylinder is movably connected with the inner cylinder through a bearing assembly, and the outer cylinder rotatable around an axis of the inner cylinder. The tension assembly includes a screw, a spring and a connecting assembly. The connecting assembly includes a fixing portion, a friction portion and a transmission portion, the friction portion and the transmission portion are both arranged around the inner cylinder, and the transmission portion is fixedly connected with the outer cylinder. A side face of the inner cylinder is provided with a through hole, and the fixing portion penetrates through the through hole and is fixedly connected with the friction portion.
A winding method for a foil coil includes the following process steps of, step S1: fixing an iron core, and preparing a winding die; step S2: calculating a circumference of a foil needed by each layer of coil; step S3: making one size mark on the foil at every regular interval; step S4: arranging the foil on a winding device; step S5: fixing a start end of the coil, and arranging a reference point on a transformer; step S6: starting to wind the coil; step S7: checking whether the winding meets a preset standard requirement; and step S8: fixing a tail end of the coil.
Disclosed are a clamping device of a stereoscopic wound iron core transformer and a transformer. The clamping device includes a lower frame, a plurality of upper platen assemblies and a plurality of screw assemblies. The lower frame is configured for being arranged at lower sides of a plurality of coil windings of the stereoscopic wound iron core transformer, the plurality of upper platen assemblies are configured for being distributed at upper sides of the plurality of coil windings, and the lower frame and the upper platen assemblies are connected through the screw assemblies, so as to clamp the coil windings together.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/33 - Dispositions pour amortissement du bruit
13.
COIL WINDING STRUCTURE OF WOUND IRON CORE TRANSFORMER
Disclosed is a coil winding structure of a wound iron core transformer applied to a wound iron core transformer. The coil winding structure of the wound iron core transformer includes: an iron core, and a coil. The iron core includes at least one core post; a winding die. The winding die is of a hollow structure, is sleeved around the core post, and includes an upper die, a middle die, and a lower die. One end of the middle die is connected with the upper die and the other end of the middle die is connected with the lower die. The upper die includes a first fixing member and a first rotating member, and the lower die includes a second fixing member and a second rotating member. The first fixing member is connected with the first rotating member, and the second fixing member is connected with the second rotating member. Both the first fixing member and the second fixing member are configured for sleeving the winding die around the core post. Both the first rotating member and the second rotating member are configured for driving the middle die to rotate. The coil is a foil coil, and the coil is wound around the middle die.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
14.
WOUND IRON CORE, AND WINDING PROCESS AND WINDING DEVICE THEREFOR
The present application discloses a winding process for a wound iron core, comprising the following steps: feeding, placing a material strip on a feeding apparatus for feeding and conveying; heating, heating the material strip using a heating apparatus, so that the material strip reaches an annealing temperature; winding, winding the heated material strip on an iron core mold, to obtain an iron core frame. The present application also discloses a wound iron core manufactured by applying the winding process for a wound iron core, and a winding device for performing the winding process for a wound iron core. By applying the winding process for a wound iron core of the present application, the material strip is first heated and annealed, so that the iron core material reaches the annealing temperature, the wound iron core material does not generate stress, and the obtained iron core has stable performance. In addition, the wound iron core does not need to undergo a conventional annealing process, so that a large amount of production time is conserved, and energy consumption is reduced.
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
H01F 3/04 - Noyaux, culasses ou induits en bandes ou rubans
H01F 27/25 - Noyaux magnétiques fabriqués à partir de bandes ou de feuillards
15.
CASTING DRY-TYPE TRANSFORMER AND MANUFACTURING METHOD THEREOF
A casting dry-type transformer and a manufacturing method thereof are disclosed. The transformer includes a coil, an iron core, a clamp and a leading wire. The leading wire is led out from the coil, the coil is arranged on the iron core, the coil and the iron core are fixed together by the clamp at two sides, the coil is provided with a casting die, the casting die is provided with evenly distributed channels, a transformer body is placed into a casting tank to cast a transformer, and a casting material is easy to penetrate into the coil through a reserved channel.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
Disclosed is a novel dry-type transformer, comprising a transformer body and a housing. The transformer body comprises coils; the housing is provided with a longitudinal ventilation channel, the transformer body is located in the ventilation channel, each coil is provided with longitudinal coil air channels, the housing is provided with an air inlet and an air outlet, both the air inlet and the air outlet are communicated with the ventilation channel, the air inlet is located below the transformer body, the air outlet is located above the transformer body, and the working temperature of the lower parts of the coils is higher than the working temperature of the upper parts of the coils. By means of the stack effect, an air flow is formed in the ventilation channel, and then the air flow passes through the longitudinal coil air channels in the coils, such that heat generated by the coils can be better taken away, the coils are rapidly cooled, and the heat dissipation capability of the transformer is improved.
Disclosed are a waterproof transformer coil structure and a manufacturing method thereof. The waterproof transformer coil structure includes: an insulating cylinder configured for supporting a transformer coil; a strut configured for being wound with the transformer coil, where the strut is mounted on the insulating cylinder, and the strut is provided with strip-shaped notches; and a winding wire, where the winding wire is wound on the strip-shaped notches.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
Disclosed in the present invention is a winding method for a foil coil, comprising the following process steps: step S1: fixing an iron core, and preparing a winding mold; step S2: calculating the perimeter of a foil material required for each coil layer; step 3: making size markers on the foil material at intervals; step S4: disposing the foil material on a winding device; step S5: fixing the head end of a coil, and setting a reference point on a transformer; step S6: starting winding the coil; step S7: verifying whether the winding meets a set standard requirement; and step 8: fixing the tail head of the coil. According to the winding method, the winding tightness of each coil layer can be controlled, so as to ensure an anti-short circuit capability of the coil, and materials used for subsequent product production can also be adjusted, so as to implement precise control of the materials; moreover, actual data is also stored for subsequent product performance analysis.
Disclosed in the present invention is a wound core transformer coil winding structure, applied to a wound core transformer. The wound core transformer coil winding structure comprises: a core, the core comprising a plurality of core columns; a winding mold, the winding mold being a hollow structure, the winding mold being sleeved on the core columns, the winding mold comprising an upper mold, a middle mold, and a lower mold, two ends of the middle mold being respectively connected to the upper mold and the lower mold, the upper mold comprising a first fixing component and a first rotating component, the lower mold comprising a second fixing component and a second rotating component, the first fixing component being connected to the first rotating component, the second fixing component being connected to the second rotating component, the first fixing component and the second fixing component are used for sleeving the winding mold on the core columns, and the first rotating component and the second rotating component being used for driving the middle mold to rotate; and a coil, the coil being a foil coil, and the coil being wound on the middle mold.
Disclosed in the present invention are a foil coil winding method and device for a three-dimensional toroidal core transformer. The device comprises a rotating assembly, a driving device, and a plurality of feeding assemblies; the rotating assembly is provided with a through hole matched with an iron core stem, the rotating assembly is provided with a gear plate and a track ring around the through hole, and the gear plate and the track ring are fixedly connected by means of a fixing block; each of the feeding assemblies comprises a charging barrel and a tension device, and the charging barrel is movably connected to the rotating assembly; and a driving end of the driving device is connected to the gear plate. By means of the rotating assembly and the feeding assemblies, a winding material wound on the charging barrel can be stably and quickly transferred outwards along with the rotation of the gear plate, thereby improving the feeding stability and the winding efficiency of the foil coil winding device for the three-dimensional toroidal core transformer; and by providing the track ring and the tension device, the situations of displacement and dislocation of the charging barrel during the rotation are avoided, the quality of a coil is guaranteed, and the degree of automation of foil coil winding of the three-dimensional toroidal core transformer is improved.
Provided is a winding mold, comprising: a gear baffle plate (100), wherein a first opening used for containing an iron core column is provided in the middle of the gear baffle plate, and the gear baffle plate (100) is provided with a first face; and a material cylinder (200), wherein the material cylinder (200) is arranged on the first face of the gear baffle plate (100) and is connected to the gear baffle plate (100). The first opening for containing the iron core column is provided in the middle of the gear baffle plate (100), the material cylinder (200) is fixedly connected to the gear baffle plate (100), an external device is connected to a gear, and the material cylinder (200) on the gear baffle plate (100) is driven by means of pulling the gear to rotate around the iron core column, such that a foil material or an insulating material on the material cylinder (200) is wound around the iron core column, and finally, the winding of a foil type winding is achieved.
Disclosed in the present invention is a wire winding reel of a three-dimensional wound core transformer, the wire winding reel comprising an outer reel, an inner reel and a tension assembly, wherein the outer reel is movably connected to the inner reel via a bearing assembly and rotates about an axis of the inner reel; the tension assembly comprises a screw rod, a spring and a connecting assembly; the connecting assembly comprises a fixing portion, a friction portion and a transmission portion, the friction portion and the transmission portion are both sleeved on the inner reel, and the transmission portion is fixedly connected to the outer reel; and a through hole is provided in a side surface of the inner reel, and the fixing portion passes through the through hole and is fixedly connected to the friction portion. By providing the outer reel and the inner reel, a foil strip wound around the outer reel can be stably and rapidly conveyed outwards as the outer reel rotates, and the winding efficiency of a three-dimensional wound core product is improved; and by providing the tension assembly, when the transmission portion is driven by the outer reel to rotate, the friction portion and the transmission portion generate a friction force, such that the outer reel applies tension to the foil strip or interlayer paper, the dislocation of the foil tape or the interlayer paper is avoided, and the coil quality is guaranteed.
Disclosed are a clamping device of a stereo roll iron core transformer, and the transformer. The clamping device comprises a lower frame, a plurality of upper pressing plate assemblies and a plurality of screw rod assemblies, wherein the lower frame is used for being arranged on the lower side of a plurality of coil windings of the stereo roll iron core transformer; the plurality of upper pressing plate assemblies are used for being distributed on the upper side of the plurality of coil windings; and the lower frame and the upper pressing plate assemblies are connected to each other by means of the screw rod assemblies, so as to jointly clamp the coil windings. According to the transformer provided in the embodiments of the present invention, due to the use of the clamping device, compared with a traditional clamping device, iron and steel consumables around an iron core are reduced, such that the structure is simpler, the overall occupied size is smaller, the weight is lighter, material is saved, and the stray loss of the transformer is reduced.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
24.
CAST DRY-TYPE TRANSFORMER AND FABRICATION METHOD THEREFOR
Disclosed is a cast dry-type transformer and a fabrication method therefor. The cast dry-type transformer comprises a plurality of coils, an iron core, clamping members, and a lead. The lead is led out from the coils; the coils are disposed on the iron core; the coils and the iron core are fixed together by means of the clamping members on two edges; the coils are provided with a casting mold; the casting mold is provided with uniformly distributed channels; a machine body is placed in a cast tank to cast the transformer; and the cast material very easily penetrates into the interior of the coils by passing through reserved channels. The novel cast dry-type transformer reduces flammable substances; and by using an insulated casting mold and a special cast process, the time consumption problem of casting mold installation, the airtightness problem of casting molds and the permeability of cast material are solved, thus greatly increasing the production efficiency of the transformer. Furthermore, the transformer of the present patent has lower production costs, a lighter weight and a higher overload capacity, and is easier to repair.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
25.
WATERPROOF TRANSFORMER COIL STRUCTURE AND MANUFACTURING METHOD THEREFOR
Disclosed are a waterproof transformer coil structure and a manufacturing method therefor. The waterproof transformer coil structure comprises: an insulation cylinder for supporting a transformer coil; stays on which the transformer coil winds, the stays being mounted on the insulation cylinder, and the stays being provided with strip-shaped notches; and a winding wire wound in the strip-shaped notches. According to the waterproof transformer coil structure, the waterproof and hydrophobic capability of a coil and the waterproof performance of a transformer are enhanced by means of the stays and the strip-shaped notches arranged on the stays of the waterproof transformer coil structure.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
26.
High-voltage lead structure for three-dimensional wound core of transformer
A high-voltage lead structure for a three-dimensional wound core of a transformer that includes a three-dimensional wound core spliced by three rectangular single frames, and A-phase, B-phase and C-phase windings. The three-dimensional wound core includes three core legs, an upper iron yoke and a lower iron yoke. The upper iron yoke and the lower iron yoke of the three-dimensional wound core are triangular structures respectively. The A-phase, B-phase and C-phase windings are correspondingly arranged in the three core legs. Each single-phase winding includes an internal low-voltage winding and an external high-voltage winding. High-voltage windings of the A-phase, the B-phase and the C-phase are jointly connected to a tap switch through lead-out wires. The tap switch is located outside the triangular structure of the upper iron yoke and is arranged in a vertical extension line of a midpoint between the A-phase and C-phase windings.
A novel pulling plate structure for a three-dimensional wound core of a transformer, including a three-dimensional wound core spliced by three rectangular single frames, the three-dimensional wound core includes three core legs, an upper iron yoke and a lower iron yoke, an upper frame surrounding the upper iron yoke is installed in a top of the three-dimensional wound core, a lower frame surrounding the upper iron yoke is installed at a bottom of the three-dimensional wound core, the core leg has a longitudinal cross-section opposite and parallel to inside faces of the upper frame and the lower frame, a pulling plate is installed in a plane of the longitudinal cross-section, the pulling plate is connected with the upper frame and the lower frame.
A transformer three-dimensional wound core low-voltage lead structure is provided comprising a three-dimensional wound core formed of three rectangular single frames, and three phase windings. The wound core comprises three core posts and an yoke, the yoke being a triangular structure. The three phase windings are arranged on the three core posts, each phase winding comprising an internal low-voltage and high-voltage winding. The head end and the tail end of each phase low-voltage winding are respectively connected to a lead-out line, and the lead-out lines are located in a triangular structure region of the yoke, and a low-voltage bushing step-up module is provided above the wound core, three low-voltage bushings are provided on the low-voltage bushing step-up module, and the three low-voltage bushings are connected to the lead-out line of the corresponding low-voltage winding.
An amorphous alloy transformer iron core of a three-dimensional triangle structure belongs to the technical field of electrical devices. The amorphous alloy transformer iron core of the three-dimensional triangle structure is formed by piecing three identical rectangular single frames whose sections are approximately semicircular. A manufacturing method thereof comprises steps of cutting, winding, assembling, annealing and molding. The amorphous alloy transformer iron core of the three-dimensional triangle structure has the advantages of saving materials, reducing loss and noise, balancing three phases, enabling coils not to be sleeved, and being stable in performance and strong in anti-short circuit capacity.
H01F 7/06 - Électro-aimantsActionneurs comportant des électro-aimants
H01F 3/04 - Noyaux, culasses ou induits en bandes ou rubans
H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
30.
THREE-DIMENSIONAL WOUND CORE OPEN DRY-TYPE TRANSFORMER COIL STRUCTURE AND WINDING METHOD THEREFOR
A three-dimensional wound core open dry-type transformer coil structure and a winding method therefor. The three-dimensional wound core open dry-type transformer coil structure comprises a three-dimensional wound core, an insulating cylinder disposed outside the three-dimensional wound core, and a coil winding wound onto the insulating cylinder. The coil winding is formed by winding insulating wires (1); comb-shaped supporting bars (2) are uniformly disposed outside the insulating cylinder; the insulating wires (1) are wound around racks (21) of the comb-shaped supporting bars (2); coil taps (11) are connected to the coil winding; the coil taps (11) are led out onto the surface of the coil winding; the head end of the coil winding and the part of the coil winding leading out the coil taps (11) are wound into forward and reverse hybrid coils (12), and the remaining parts are fully forward coils (13). By means of the comb-shaped supporting bars (2), a large number of cushion block materials can be saved, so that the heat dissipation capacity of the coils can be greatly improved; the coil winding is manufactured into a continuous coil structure combining the fully forward coils (13) and the forward and reverse hybrid coils (12) to ensure that all the heads, tails and taps (11) of the coils can be led out on the surface, and process complexity due to leading of the coil taps (11) out of the interior of the coils can be avoided.
Disclosed is a novel three-dimensional wound core pull plate structure for a transformer, comprising a three-dimensional wound core formed of three rectangular single frames spliced together, wherein the three-dimensional wound core comprises three core posts and an upper yoke and a lower yoke, an upper frame surrounding the upper yoke is arranged at the top of the three-dimensional wound core, a lower frame surrounding the lower yoke is arranged at the bottom of the three-dimensional wound core, the core posts are provided with parallel longitudinal cross sections opposite inner side faces of the upper frame and the lower frame, a pull plate is arranged on the plane of the longitudinal cross sections, and the pull plate is connected to the upper frame and the lower frame. Since the pull plate is arranged in the circle of the core cross section, an isolation distance between windings, leads and the pull plate does not need to be considered, reducing the overall size of the transformer, optimising the structure, and reducing costs.
Disclosed is a three-dimensional wound core transformer high-voltage lead structure, comprising a three-dimensional wound core (1) formed by three rectangular single frames, and A-phase, B-phase and C-phase windings (2), wherein the three-dimensional wound core comprises three core posts and an upper yoke and a lower yoke, the upper yoke and lower yoke of the three-dimensional wound core are respectively triangular structures, the A-phase, B-phase and C-phase windings are correspondingly arranged on the three core posts, each winding comprises an internal low-voltage winding and an external high-voltage winding, and the A-phase, B-phase and C-phase high-voltage windings are jointly connected via a lead-out line (3) to a tap changer (4); and characterised in that the tap changer is located outside the triangular structure of the upper yoke, and on a vertical extension line at a mid-point between the A-phase and the C-phase windings. The high-voltage lead structure means that the lead length is greatly shortened, few lead clamps are needed, and lead to ground discharge points are significantly reduced, improving the reliability of transformer products.
Disclosed is a transformer three-dimensional wound core low-voltage lead structure comprising a three-dimensional wound core (1) formed of three rectangular single frames, and three phase windings, wherein the three-dimensional wound core (1) comprises three core posts and an upper yoke and a lower yoke, the upper yoke and lower yoke of the three-dimensional wound core (1) are respectively triangular structures, the three phase windings are correspondingly arranged on the three core posts, each phase winding comprises an internal low-voltage winding (3) and an external high-voltage winding, the head end and the tail end of each phase low-voltage winding (3) are respectively connected to a lead-out line (2), and the lead-out lines (2) of the head end and tail end of each phase low-voltage winding (3) are located in a triangular structure region of the upper yoke and the lower yoke; and a low-voltage bushing step-up module (4) is provided above the three-dimensional wound core (1), three low-voltage bushings are provided on the low-voltage bushing step-up module (4), and the three low-voltage bushings are connected to the lead-out line (2) of the corresponding low-voltage winding (3). The present structure solves problems in leads, caused by each phase length being different, of resistance being unbalanced and loss of leads being too high, etc.
A stereoscopic transformer wound core having isosceles triangle yokes, comprising three core limbs and six yokes. The three core limbs and the six yokes are formed by the assembly of three rectangular single frames (1). The sizes and shapes of two of the rectangular single frames are completely identical, and the length of the yoke of the remaining rectangular single frame is greater than that of the yokes of the other two rectangular single frames, the three rectangular single frames have an equal height, two adjacent rectangular single frames are assembled to form core limbs with the cross section being a polygon externally connected to a whole circle. The stereoscopic transformer wound core can decrease the transformer transportation width, lower the transportation difficulty, reduce costs, and provide the shortest path for tapping a coil to a tapping switch through a lead, thereby greatly simplifying the lead arrangement.
The invention discloses a high voltage wire leading method for a stereoscopic wound core open ventilated dry-type transformer, which comprises the steps of fixing stereoscopic wound cores arranged in a triangular shape between an upper clamp and a lower clamp, winding A, B and C three phase coils on the stereoscopic wound cores and arranging a high voltage wire leading bracket on the upper clamp, wherein the high voltage wire leading bracket is provided with connecting terminals which respectively correspond to the A, B and C three phase coils; and each phase coil is respectively provided with a wire inlet terminal and a wire outlet terminal. In the high voltage wire leading method, each of the three A, B, and C phase coils is provided with two wire outlet terminals and the numbers of turns of the three phase coils are still equal, so that under the condition of not changing the numbers of the turns of the coils, the added wire outlet terminals make leading more conveniently and the lead structure simpler.
H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés
H01F 41/10 - Raccord des connexions aux enroulements
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
A fixing structure for the upper pressing blocks of a stereoscopic wound core open-ventilated dry-type transformer, including three coils arranged vertically. Three coils are arranged in triangle; an insulation ring is arranged at the upper end of each of the coils; a pressing block used for pressing the corresponding coil is placed on the upper surface of each insulation ring; an upper clamp is arranged above the pressing blocks; and press rods for pressing the pressing blocks are arranged on the bottom surface of the upper clamp. According to the disclosure, the upper clamp presses the pressing blocks and then the pressing blocks 3 press the coils, so the loosening of the coils is prevented and impact resistance of the coils is ensured; moreover, the pressing blocks which press the coils do not need to be tensioned by a lower clamp through utilizing a screw, and thus, the phase-to-phase distance between three coils will not be increased and the insulation distance between the coils is not to be increased; and in addition, four pressing blocks are evenly arranged on each coil, and thus, the coils bear more uniform stress, so the coils can be pressed better.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés
37.
Coil structure of open ventilated type stereoscopic wound-core dry-type transformer
A coil structure of open ventilated type stereoscopic wound-core dry-type transformer, comprising wire disks formed by wound wires and fixing parts. The fixing parts are provided with clamping grooves for fixing the wire disks. The wire disks are fixed and wound around the fixing parts to form the coil structure. The outer layers of the wires are coated with insulating paper with insulating paint. And by insulating paint, wires are adhered mutually and wire disks adhere to fixing parts, which combine into an integral structure. The coil structure does not require another paint impregnation process, so the process is simplified. And by the insulating paint on the insulating paper, wires are adhered mutually and wire disks adhere to fixing parts, so the structure is stable and firm and ensures the electrical equipment meets the requirements of electric performance, mechanical property and insulating property.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
The invention provides a paint immersing process for insulating paper, comprising the following steps: step 1, adding insulating paint in a container to blend paint; step 2, drying a base band of the insulating paper; step 3, entirely immersing the processed base band of the insulating paper into the insulating paint; or spraying the insulating paint onto the base band to cover the surface thereof; and step 4, taking out the base band to dry at controlled temperature till solidifying the insulating paint and the base band of the insulating paper. The paint immersing process is simple and practical to operate. The base band can directly cover a conductor as an insulator. As the insulating paint has a certain adhesive property, the structure of conductor with the insulating paper becomes more stable. After the conductor is wound into a coil, free of another immersing process, simplifying production.
B05D 1/18 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par immersion
B05D 3/02 - Traitement préalable des surfaces sur lesquelles des liquides ou d'autres matériaux fluides doivent être appliquésTraitement ultérieur des revêtements appliqués, p. ex. traitement intermédiaire d'un revêtement déjà appliqué, pour préparer les applications ultérieures de liquides ou d'autres matériaux fluides par cuisson
B05D 5/12 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces pour obtenir des effets, finis ou des structures de surface particuliers pour obtenir un revêtement ayant des propriétés électriques spécifiques
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
H01F 41/32 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour appliquer un matériau conducteur, isolant ou magnétique sur une pellicule magnétique
D21H 19/16 - Couches sans pigments appliquées sous une forme autre que la solution aqueuse définie dans le groupe comprenant des composés réticulables ou polymérisables
D21H 19/24 - Couches sans pigments appliquées sous une forme autre que la solution aqueuse définie dans le groupe comprenant des composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
The patent discloses a resin-molded stereo wound-core dry-type amorphous alloy transformer, belonging to the field of power equipment. The resin-molded stereo wound-core dry-type amorphous alloy transformer disclosed is characterized in its stereo wound-core structure. Three lower yokes are provided on a welded base of a lower clamp, and an upper clamp and a lower clamp are connected with each other by press screws. Its low-voltage windings are with a foil-wound or cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in NOMEX® paper and processed through vacuum pressure impregnation. In addition, several upper and lower padding blocks are involved to support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure.
A non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer. The core of the transformer has a stereo structure. Three lower yokes are placed on a base of a lower clamp, and an upper clamp and the lower clamp are connected with each other by several press screws. Low-voltage windings include a foil-wound or wire-wound cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in an insulate paper and processed through vacuum pressure impregnation. Upper and lower padding blocks support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés
An oil immersed stereo wound-core amorphous alloy transformer, comprising an iron core, a high-low voltage winding, leads and a tank. The core comprises three single frames made of amorphous alloy strips by winding and are identical in structure, and the single frames have a rectangular shape; the vertical sides of every two adjacent frames fit together fixedly to form a core pillar, and the horizontal sides of the single frame form iron yokes; the cross sections of the core pillars have an approximately circular or polygonal shape; the transformer further comprises a clamp, comprising a quasi-triangular upper and lower clamp, and posts, the lower clamp is provide with three food pads; the iron yokes in the lower portion of the iron core are located on the foot pads, and the high-low voltage winding is wound on the core pillars.
H01F 27/06 - Montages, supports ou suspensions de transformateurs, réactances ou bobines d'arrêt
H01F 27/00 - Détails de transformateurs ou d'inductances, en général
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/25 - Noyaux magnétiques fabriqués à partir de bandes ou de feuillards
The invention provides an amorphous alloy stereo wound-core, comprising three structurally identical amorphous alloy made square frames; the cross section of the sides of the frames is in an approximately semi-circular or semi-polygonal shape; the frames have semi-circular cross sections and uniform thicknesses; the vertical sides of every two adjacent frames fit together fixedly to form a core pillar, the horizontal sides of the frames form iron yokes; the cross section of each core pillar has a circular or regular-polygonal shape. With this structure, the magnetic conduction direction of the amorphous alloy is completely consistent with the magnetic circuit direction of the core, and its working vibration is small. This core structure guarantees balanced three-phase power supply and largely reduces the magnetic resistance and excited current. There is no seam in the amorphous alloy stereo wound-core, so there is no area with high energy consumption. In this way, the advantages of the amorphous alloy on high magnetic conduction can be fully realized; the loss caused by an air gap in a seam is minimized. On the basis of the very low no-load loss of the conventional amorphous alloy, the present invention can further reduce the loss by 20% or more.
A stereo-triangular wound-core power transformer with a voltage class more than or equal to 110 kV is disclosed, which includes a stereo-triangle wound-core and windings, wherein the core includes iron yokes and core pillars which are arranged in a stereo-triangle shape, with every two adjacent core pillars connected through an iron yoke. The power transformer further includes angle rings, end rings, insulating end rings, insulating end plates and a frame-type clamp, wherein the angle rings, insulating end rings, end rings and insulating end rings are arranged at both ends of the core pillars in sequence, respectively, and the ends of the core pillars are arranged on the insulating end plates. The frame-type clamp covers the iron yokes, and the supporting boards of the frame-type clamp are connected with the insulating end plates through pressing screws.
brevets
