1152results about "Windings insulation shape/form/construction" patented technology

The invention discloses a ventilation cooling optimization method for an all-hydrogen-cooled gas turbine generator, and relates to the technical field of all-hydrogen-cooled generator cooling, and the method comprises the steps: analyzing cooling demands, calculating loss in combination with a high-frequency start-stop peak regulation working condition, and setting a stator RTD temperature, an iron core temperature and a temperature rise target; an end ventilation structure is designed, the diameter of the fan is optimized, and bar gaps, wind shield holes and inner supporting ring ventilation grooves are formed; optimizing variable air ducts of the iron core, and adjusting the width of the air ducts according to thermal load partitions; cFD coupling simulation verification is carried out, and a loss data simulation flow field and a temperature field are imported; carrying out physical test iterative optimization, manufacturing a prototype model, testing, and adjusting parameters until errors are qualified; operation monitoring and dynamic adjustment are carried out, and a sensor is installed to collect data in real time and adapt to working condition requirements. Cooling uniformity and efficiency are improved, peak regulation start and stop working conditions are adapted, hydrogen parameter change influences are balanced, vibration and cooling are cooperatively controlled, operation and maintenance convenience is improved through modular design, and long-term stable operation of the generator is guaranteed.

The invention discloses a connecting structure of frameless torque motor flat wire windings, which belongs to the technical field of frameless torque motors, and comprises a stator consisting of a stator core and windings, the stator core comprises stator slots and tooth parts, each phase of winding consists of N sets of two groups of flat wire coils, the width of the flat wire coil is gradually increased from the inner diameter side of the stator to the outer diameter side of the stator, the current direction of the coil accords with regular circulation of positive and negative and positive, each set of coil connecting wire is formed by connecting in the same layer, and compared with a coil with the outer side and the inner side connected with a cross-layer wire, the end space can be reduced, and the end height can be reduced. Compared with a round wire winding, the connection structure of the frameless torque motor flat wire winding has the advantages that the slot fullness rate can be increased, the motor efficiency is high, the stability is improved, the space utilization in a stator slot can be greatly improved through a specific wire connection mode, the space waste in the slot is reduced, the windings are more compact, the overall consumables are less, and the connection and assembly are more convenient.

The invention discloses a wire connecting structure of a flat wire stator, and belongs to the technical field of energy-saving motors, the wire connecting structure comprises a stator core and a stator slot, a winding is arranged in the stator slot, the stator core and the winding form a stator, the stator is a concentrated winding type stator, the longitudinal section of the winding is of an octagonal structure, and the winding is arranged in the stator slot. And the left and right sides of the windings can be broken to reduce the number of used molds and reduce the winding difficulty of the windings, and one end of each of two outgoing lines of each group of windings is on the outer diameter side of the stator while the other end is on the inner diameter side of the stator. According to the wire connecting structure of the flat wire stator, the cross section of the winding is of an octagonal structure, folding can be carried out on the two sides, the number of molds can be reduced, the winding difficulty of the winding can be reduced, compared with a traditional winding with a rectangular cross section, the slot fullness rate can be increased by 4%-8%, the end space is small, the number of opened molds is reduced, the winding difficulty of the winding is reduced, the cost is reduced, and the slot fullness rate, the power density and the efficiency are high.

The invention discloses an efficient heat dissipation motor stator module and a manufacturing method thereof, and belongs to the technical field of motors. The problems that an existing motor is low in heat dissipation efficiency, high in winding temperature rise and the like are solved. The module comprises a copper winding, a plurality of high-thermal-conductivity ceramic sheets and an independent stator tooth. Comprising a copper winding and stator teeth, any two adjacent wire turns of the copper winding are separated through high-thermal-conductivity ceramic sheets, the stator teeth penetrate through inner holes of the copper winding, and a high-thermal-conductivity epoxy resin potting layer wraps the copper winding, the multiple high-thermal-conductivity ceramic sheets and the part, penetrating into the copper winding, of the stator teeth and is cured into a whole. The high-efficiency heat dissipation stator module provided by the invention can improve the problem of overlarge thermal resistance caused by an air gap and an insulating layer between a winding and an iron core in a traditional motor, constructs a high-efficiency heat conduction path from the winding to the iron core, and effectively improves the heat dissipation performance of the motor.

The invention belongs to the technical field of superconductive phase modifier stators, and relates to a power grid direct connection type ultrahigh voltage superconductive phase modifier stator cable winding fixing method, which is characterized in that a cable is fixed in a groove in segmented non-magnetic teeth, and the end part of the cable is bound and fixed; and the problem of local deformation of the cable winding caused by end electromagnetic stress and vibration can be avoided.

A motor stator injection molding and cooling structure of the present invention comprises a shell, a stator core and a flat wire conductor, the stator core is fixed on the inner wall of the shell, the flat wire conductor is inserted in the stator core, the two ends of the shell are provided with end sealing sleeves, and the end sealing sleeves, the inner wall of the shell and the end face of the stator core form an oil storage cavity. The shell is provided with an oil outlet hole at the oil storage cavity; an insulating framework is further arranged between the flat wire conductor and the stator iron core, the stator iron core is divided into at least two sections, a circumferential oil way is formed between the insulating framework at the joint of the adjacent stator iron cores and the shell, a circle of yoke oil way is further formed in the stator iron core, the circumferential oil way is communicated with the oil storage cavity through the yoke oil way, and an oil inlet hole is formed in the position, located at the circumferential oil way, of the shell; the insulating frameworks are further provided with groove bottom oil ways and groove opening oil ways, and radial oil ways communicated with the groove bottom oil ways and the groove opening oil ways are further arranged at the connecting positions of every two adjacent insulating frameworks. The structure is good in cooling effect, convenient to machine and produce and compact in overall structure.

An armature winding of multiple phases has a phase winding that is made of a plurality of partial windings for each phase. The partial winding includes a pair of intermediate conductor portions and crossover portions that connect the pair of intermediate conductor portions in an annular shape, and is configured by a conductor material being wound in multiple layers in the pair of intermediate conductor portions and the crossover portions. The intermediate conductor portions of the phases are arrayed in a predetermined order in the circumferential direction by one of the intermediate conductor portions of the pair of intermediate conductor portions of the partial winding of another phase being arranged between the pair of intermediate conductor portions of the partial winding. A sheet-shaped insulation covering body is provided in the intermediate conductor portion in a portion that opposes the intermediate conductor portion of the partial winding of another phase.

The utility model provides a driving device of a food processor, which comprises a stator iron core and a coil winding, the stator iron core and the coil winding are respectively and axially distributed with a crushing device of the food processor, and the crushing device comprises a crushing cutter and a transmission magnetic disk. The driving device drives the transmission magnetic disk to rotate by generating a changing magnetic field so as to drive the crushing cutter to rotate; the stator core comprises a stator body and a stator tooth pole, the coil winding is wound on the stator tooth pole, a first end of the stator tooth pole is connected to the stator body, and a second end of the stator tooth pole is provided with a tooth pole end face; the area of the end face of the tooth pole is larger than the area of the cross section of the stator tooth pole, and when the driving device is powered off, the end face of the tooth pole is attracted to the smashing device through the transmission magnetic disk, so that it is guaranteed that the smashing device cannot fall off or fly-cut from the interior of the cavity in the powered-off state, and use safety of a user is fully guaranteed.

A stator for an electric motor, especially an axial flux motor, includes coils directly connected to one another, thus appreciably simplifying manufacturing and assembly by reducing or, in some instances, eliminating busbars from the stator and reducing the number of connection points to electrically connect the coils to an electrical power source. In one example, multiple coils may be formed from a single continuous conductor. In another example, multiple coils may be assembled from individually formed coils that are welded directly to one another. The stator may further include pole pieces with laminated structures to improve performance. A potting compound may also be applied to the stator in several ways, such as a trickle coating process or a transfer molding process.

The invention provides a 10kV explosion-proof motor stator winding turn-to-turn insulation breakdown risk control method and system, and relates to the technical field of motor manufacturing, and the method comprises the steps: determining the existence of a turn-to-turn insulation defect through analyzing a creepage breakdown phenomenon in batch production, and positioning breakdown points which intensively appear at the head and tail turns of a lead end, obtaining a breakdown point position characteristic; based on the position characteristics of the breakdown points, main causes of insulation weakness are obtained through analysis; based on the main reason of weak insulation, a single-sided polyester film reinforced mica tape is selected as an inter-turn insulation material; and performing process verification on the turn-to-turn insulating material to obtain structural characteristic parameters of the insulating material. According to the method, the reliability and consistency of turn-to-turn insulation of the 10kV explosion-proof motor stator winding are improved through full-process control of data-driven defect diagnosis, material selection, process optimization, insulation strengthening and performance verification.

To avoid an increase in manufacturing cost of an electric motor, and increase the space factor of a winding portion while improving the reliability of a conductor wound in a first layer of the winding portion.SOLUTION: An electric motor manufacturing method performs: a first operation of winding a conductor from one end side to another end side of a winding drum in a radial direction of a yoke while leaving a gap between adjacent windings in a first layer; and a second operation of after the first operation, winding the conductor in the first layer so as to be in contact with the winding located at the other end, thereby moving at least a portion of the winding wound in the first operation toward the one end to close the gap.SELECTED DRAWING: Figure 15

The invention provides a stator unit, a motor provided with the stator unit, and an air conditioning device, a refrigerator and a vehicle-mounted device equipped with the motor. The stator unit can ensure the cooling efficiency of a coil. At least one refrigerant passage between the plurality of coils (U1 to W3) is closed by a harness block (70). However, since at least a part of a pipe (59) covering the neutral point (58) is disposed between the bottom surface of the harness block (70) and the coils (V1, W2), the refrigerant passage can be prevented from being further closed by the pipe (59). As a result, the cooling medium can easily pass through the plurality of refrigerant channels, and therefore, the cooling efficiency of the coils (U1 to W3) can be ensured.

The utility model relates to the technical field of motor stator structures, in particular to a motor stator structure, which comprises an iron core, a coil holder is fixedly connected on the inner wall of the iron core, a plurality of groups of wire frames are fixedly connected on the inner wall of the coil holder, the plurality of groups of wire frames are arranged in a circumferential array, wire slots are arranged in the middle of the plurality of groups of wire frames, and coils are wound between adjacent wire slots. The surfaces, away from the iron core, of the multiple sets of wire frames are each provided with an insulation isolation assembly in a clamped mode, and the multiple sets of insulation isolation assemblies are arranged in a circumferential array mode and surround the exterior of the motor rotor. A coil is wound among a plurality of groups of wire frames, the wire frames are installed in an iron core through a wire rack, one end of each group of wire frames is clamped with an insulation isolation assembly, and the insulation isolation assemblies prevent the coil from being exposed out of the wire frames and isolate a stator from a rotor, so that the insulation performance and the protection performance between the stator and the rotor are improved; and the service life of the motor stator is prolonged.

The present disclosure relates to a kind of stator core module, insulating framework module, stator, motor and compressor, the stator core module includes first lamination and two second laminations stacked along the axial direction, two second laminations are located at the opposite sides of first lamination respectively;First lamination includes first tooth portion, second lamination includes second tooth portion, the width of first tooth portion is less than the width of second tooth portion, two second tooth portion and first tooth portion form tooth portion slot enclosed.This technical solution of the present disclosure effectively solves the technical problems of low efficiency and high noise during operation of traditional motor.

An ultra-thin four-pole series wound motor for a household blender, relating to the technical field of ultra-thin series wound motors, and comprising a mount (1), wherein a stator (2) is mounted on the mount (1), four winding coils (3) are provided on the stator (2), a steel shaft (4) is rotatably connected onto the mount (1) by means of a bearing, and a rotor (5) is mounted on the steel shaft (4). By providing four winding coils, the number of winding coils is increased, thereby increasing the strength of a generated magnetic field; at the moment of starting, the stronger magnetic field and appropriate current are generated, resulting in higher starting torque, so that the motor can have a greater output in a smaller volume, achieving miniaturization of external dimensions of household high-power blenders and reducing product costs.

The present application discloses a stator, a generator, a wind turbine generator set, and an anti-corona treatment method. The stator comprises an iron core and a winding; a plurality of mounting slots are distributed at intervals in the iron core in the circumferential direction; the winding is arranged on the iron core, and the winding comprises a plurality of branches; each branch comprises a plurality of coils; each mounting slot is internally provided with one coil; each coil has end parts protruding out of the iron core on the two sides of the iron core in the axial direction; at least one branch is provided with a potting layer, and the potting layer covers the end parts of some of the plurality of coils of the branches; and the working voltage of some of the coils when the generator works at a rated voltage is greater than a voltage anti-corona threshold.

A motor according to the present invention includes: a stator having a stator core and a coil; a rotor having a rotary shaft and a rotation body; a shaft bearing rotatably supporting the rotor; and a molding resin covering the stator. The motor has a coil end that is the coil protruding from the stator core in a shaft center X direction, and has a non-combustible layer provided to cover the coil end. The non-combustible layer is a metallic cover made of, for example, metal. The metallic cover is disposed to cover a periphery of a coil assembly in which the coil is formed on the stator core through an insulator. The metallic cover is integrated with the coil assembly by a molding resin.

The invention discloses a stator coil type coil for a high-voltage shielding motor, a manufacturing method, a stator and a motor, the coil type coil comprises a continuous coil body made of a conductive material, the coil body comprises two parallel long straight line segments, bevel edge segments connected with the two ends of the straight line segments, and nose parts located at the joints of the bevel edge segments; the turn-to-turn insulating layer and the ground insulating layer are coated outside the conductive material; the coil body forms an integrated full-mould-pressing structure through mould pressing forming, the mould pressing forming range covers all the straight line sections and the bevel edge sections connecting the straight line sections and the nose part, and the nose part is not covered by a mould. The problems of difficulty in coil inserting of high-voltage and small-size stators, poor insulation reliability, low motor efficiency and the like are solved.

The application discloses a hairpin motor stator based on circular conductors, comprising a stator core and a stator winding, the stator core is provided with a plurality of stator slots in the circumferential direction, the stator slots extend in the radial direction, and the circumferential width gradually decreases from the slot bottom to the slot opening direction; the stator winding is connected by a plurality of hairpin conductors, the hairpin conductor is configured as an integral component based on a circular conductor substrate; the hairpin conductor comprises a first leg and a second leg, the first leg is configured as a circular cross-section column body and is configured to adapt to the slot bottom side of the stator slot, and the second leg is configured as a flat cross-section column body and is configured to adapt to the slot opening side of the stator slot; the application has the technical effects of low cost, high slot fill rate and excellent stator winding end cooling.

Electric machine (2) with a housing (4) and with a stator (12) within the housing surrounding a rotor (6) fixedly arranged on a motor shaft (8) and having a rotating field winding which forms a winding head (16) on each of the end faces of the stator (12), - wherein the winding heads (16) are embedded in a thermally conductive potting material (20), - wherein the potting material (20) is in thermal contact with the housing (4) along the outer circumference of the winding head (16), and - wherein a segmented, comb-like cooling plate (24) is arranged on the inner circumference of the potted winding head (16), which has a number of lamellar sheet teeth (26) extending axially towards the opposite end face, which are freed by slot-like recesses (28) of the cooling plate (24).

A stator of an electromachine (2) comprising a stator laminate (3) containing sheet metal (8) and extending around a stator shaft (7), having stator teeth (4) and stator slots (5) between the stator teeth (4), wherein within the stator laminate (3) there is provided at least one set (13) of three first stator sub-laminateds (3.1) twisted in opposite directions to clamp the stator coil (6) at clamping points (10) of the stator slots (5), with two of the first stator sub-laminateds (3.1) of each set (13) in one circumferential direction about the stator shaft (7), and the remaining first stator of the set (13) A stator characterized in that a sub-laminated stack (3.1) is twisted in opposite directions, and within the stator slot (5) of the stator stack (3), a protective cylinder (11) is provided in the region of the twisted first stator sub-laminated stack (3.1), and this protective cylinder (11) protects the stator coil (6) from damage caused by the twisted first stator sub-laminated stack (3.1), and is particularly electrically insulating, wherein at least one of the protective cylinders (11) has at least one flange (12), and this flange (12) is bent with respect to the slot section (11.1) of the protective cylinder (11) and is provided so as to be supported by axial bracing against one of the stator teeth (4) of one of the first stator sub-laminated stacks (3.1).

A slot liner for an electric machine is arranged to be located and removably retained in a slot of a machine to secure a winding in the slot. The slot liner includes a flexible electrically non-conductive material defining a body having a first surface to be located against a wall of the slot and an opposing surface configured to receive a winding therearound. The slot liner also includes a phase separator arm extending adjacent but spaced from the opposing surface, where the opposing surface and the phase separator arm define a space therebetween to accommodate a winding when mounted onto the slot liner. In use, the separator arm extends along the slot to separate a winding mounted on the slot liner from another winding secured in the slot by a slot liner on an adjacent tooth.

The invention relates to a method for producing a coil device (1), in particular a multi-layer coil device for an electric machine (10), wherein a) at least one electrically non-conductive fastening element (2) combined with an adhesive in the form of a wrappable tape is placed in and / or on a coil body (3) having Litz wires (5), b) at least one electrical insulating means (4) is placed on the outside of the coil body (3), in particular also on the fastening element (2), and c) the entirety of fastening element (2), coil body (3) and electrical insulating means (4) is integrally joined together as a result of pressure action (P) and / or thermal action (T), by adhesive bonding or melting of the adhesive, so as to form the coil device (1). The invention also relates to a coil device (1) produced by means of said method and to an electric machine (10) having corresponding coil devices (1).

To provide an insulator, a stator, and a motor for which the route of a nozzle to be used to wind a coil is ensured.SOLUTION: An insulator 5 provided between a stator core and a 3-phase coil wound around the stator core comprises: a body part 61 that covers the part of the stator core around which the coil is wound to insulate the stator core and the coil; a locking part 62 arranged at an end in a radially inner side of the body part 61; and a plurality of crossover holding parts 63 that are arranged outside the body part 61 in a radial direction and hold a crossover of the coil. At least one of the plurality of crossover holding parts 63 has its circumferential length outside in a radial direction formed to be shorter than its circumferential length inside in the radial direction when viewed from the axial direction.SELECTED DRAWING: Figure 9

The utility model relates to a stator and motor. Prevent the space of coil from being smaller. The first coil has first winding part and second winding part. The second winding part is arranged on the first winding part or is arranged on the radial outer side relative to the first winding part. The second coil has third winding part and fourth winding part. The fourth winding part is arranged on the third winding part or is arranged on the radial outer side relative to the third winding part. The connecting part has first jumper wire and second jumper wire. The first jumper wire connects the first winding part and third winding part. The second jumper wire connects the second winding part and fourth winding part. The second jumper wire is arranged on the radial outer side relative to the first jumper wire.

The invention provides a motor stator, a motor and a low-altitude aircraft. The motor stator comprises a stator yoke part, a plurality of stator teeth and at least one positioning assembly. The stator yoke part is in a sleeve shape, and a plurality of first connecting structures distributed at intervals in the circumferential direction of the stator yoke part are arranged on the outer circumferential surface of the stator yoke part; each stator tooth is provided with a second connecting structure, and the stator teeth are connected to the stator yoke part through the connection of the second connecting structures and the first connecting structures; each positioning assembly comprises a first positioning piece and a second positioning piece which are oppositely arranged in the axial direction of the stator yoke part, and the first positioning piece and the second positioning piece which are oppositely arranged abut against the two opposite sides of at least one stator tooth. The reliability of the motor stator structure can be improved.

The present application discloses a hairpin motor winding, comprising a stator assembly. The stator assembly has 8 pole pairs and is three-phase. The stator assembly further comprises a stator core; the stator core is provided with 48 slots, which are sequentially named as point 1 to point 48 in a counterclockwise direction; there are two slots per pole per phase; the stator core is provided with a plurality of hairpin winding copper wires having insulating layers; the hairpin winding copper wires on the stator core are arranged in six layers, which are sequentially labeled as layer 1 to layer 6 from the inner ring to the outer ring of the stator core; the plurality of hairpin winding copper wires are connected to each other by means of bridging wires; and the plurality of hairpin winding copper wires are connected to each other to form a winding structure. By means of the described method, in the present application, the hairpin winding copper wires can be reversely twisted, so that the hairpin winding copper wires that need to be connected in the same phase move close to each other and are welded in a concentrated manner, thereby reducing the bridging wires, and thus reducing the weight and costs of the motor.

A stator (10) includes: a stator core (11) with a slot (14); a coil (12) attached to the stator core (11) with a part of the coil inserted into the slot (14); and insulating paper (30). An opening of the slot (14) in an end surface of the stator core (11) that faces an axial direction includes an expanded portion (18a) whose width is increased in a direction in which a coil end portion of the coil (12) that protrudes from the end surface is bent. The insulating paper (30) is inserted into the slot (14) to insulate the stator core (11) from the coil (12), and accommodated in the expanded portion (18a) with a part of the accommodated insulating paper overlapping twice or more.