339results about "Applying solid insulation" patented technology

A coil has a first coil portion that is at least partially located within a slot, and a second coil portion having a first end press-fitted into the first coil portion. Insulating resin has a continuous filling portion that continuously fills a space between an inner wall of the slots and the first coil portion in a central part of the slots with respect to the axial direction. A first positioning component is located on a first side in an axial direction relative to the continuous filling portion, and positions the first coil portion while being at least partially sandwiched between the inner walls of the slot and the first coil portion in a circumferential direction of the stator core. The first positioning component covers a gap between the first coil portion and the second coil portion that are press-fitted into each other, in the circumferential direction.

A pole cover is provided for receiving and guiding a winding on a rotor of an electric motor, comprising multiple segments which extend in a radial direction to a center axis of the pole cover, wherein the segments receive a partial region of the winding of the electric motor, and wherein each of the segments includes a winding region to receive the winding and a segment connection region for connecting to other segments, wherein the winding region and the segment connection region border on each other and the segment connection region is situated closer to the center axis than the winding region. The segment connection regions extend at least partially in the circumferential direction about the center axis and each segment connection region protrudes, in the circumferential direction about the center axis, beyond the adjoining winding region. Multiple decoupling regions are also provided, each being situated between two segment connection regions in the circumferential direction about the center axis. An electric motor having such a pole cover and a method for producing a pole cover are also provided.

The present disclosure relates to coils (121), electrical machines (100) comprising coils (121), e.g. a wind turbine generator (42), and methods for cooling coils (121) of electrical machines (100) and for winding and / or electrically insulating (200) coils (121). An electrical machine (100) comprises a rotor (110) and a stator (120). At least one of the rotor (110) and the stator (120) comprises a plurality of teeth (119) and a plurality of coils (121), the coils (121) comprising strand (150) which is wound around the teeth (119) in layers (130, 131). A first axial end portion of a first layer (130) of at least one of the coils (121) is axially displaced (117) with respect to a first axial end portion of a second layer (131) of the coil (121).

A method for manufacturing an electrically excited rotor is described. The method comprises providing a rotor body with electrically conductive windings and potting the rotor body with a potting compound, such that an electrically conductive winding interface remains accessible. Furthermore, following the potting, the method includes connecting the winding interface to an electrical power supply to provide an excitation current for the windings.

The invention relates to a double-station paper inserting machine, and belongs to the technical field of new energy motor machining. Comprising a feeding mechanism and a double-station paper inserting mechanism, and the double-station paper inserting mechanism is movably mounted on a working mounting frame; the double-station paper inserting mechanism comprises an integral lifting mechanism, the integral lifting mechanism is mounted on the working mounting frame in a manner of moving up and down, and two station translation mechanisms capable of moving left and right are symmetrically mounted on the front surface of the integral lifting mechanism; an indentation mechanism and a heating steering mechanism are sequentially arranged above the outer side of the front surface of each station translation mechanism, and a stepping shaping mechanism and an insulation paper forming mechanism are sequentially arranged below the heating steering mechanism from top to bottom in a butt joint mode and are used for conducting preliminary edge shaping and final paper folding forming on an indented insulation paper strip in a stepping mode respectively. A cutting and paper folding mechanism is fixedly arranged on one side of the stepping shaping mechanism and one side of the insulation paper forming mechanism, and a paper inserting mechanism is further arranged over the insulation paper forming mechanism in the vertical direction.

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.

The invention discloses a forming device for flat wire motor stator paper inserting equipment. The forming device comprises a first forming mold and a second forming mold. The first forming die comprises a paper folding cam and a paper folding concave wheel; a first channel is formed between the paper folding cam and the paper folding concave wheel and used for allowing insulation paper to pass through. The paper folding cam and the paper folding concave wheel are meshed with each other, can rotate oppositely and are used for bending insulation paper; the second forming mold is arranged on one side of the first forming mold; the second forming mold comprises a forming cavity and a forming push plate; a second channel is formed between the forming cavity and the forming push plate; the second channel directly faces the first channel; the forming push plate can move towards the forming cavity and is used for folding the bent insulation paper into a preset shape. The insulation paper is primarily folded through the first forming mold, then the insulation paper is secondarily folded through the second forming mold, it is ensured that the insulation paper is formed in the pre-folding mark direction in the processing process, the folding precision of the insulation paper is improved, and the problem that the folding precision of a traditional folding mode is low is solved.

The invention relates to a device (2) for arranging an insulation (56) on a coil end of an electric motor stator, wherein the device comprises a control device, a holding device (13, 19), a first manipulator (14), a second manipulator (15), a wire grab (16) and a tube sliding gripper (17). The control device regulates or controls the movement of the holding device, the first manipulator or the second manipulator. The holding device can automatically attach to the holding device, or move, a transport device (3) transporting the stator. The wire grab is arranged on the first manipulator such that said wire grab can be moved by a movement of the first manipulator, and the tube sliding gripper is arranged on the second manipulator such that the tube sliding gripper can be moved by a movement of the second manipulator. The device is designed to provide each of the coil ends with an insulating tube (56) when the transport device is attached to the holding device. The invention furthermore relates to a method for arranging said insulation on a coil end.

This invention discloses a manufacturing apparatus for an embedded segmented skew-pole rotor core, comprising a base (1), a lower pressure plate (2) mounted on the base (1), a boss (20) integrally provided in the middle of the lower pressure plate (2), the inner cavity of the boss (20) being coaxially connected with the central hole of the base (1); a ring of top-lifting screws (16) uniformly installed on the lower pressure plate (2) around the outer periphery of the boss (20); a pad (3) is supported on all the top-lifting screws (16), and a pressure plate adapter groove (21) is provided in the center of the pad (3) for a rotor pressure plate (103) to pass through; the apparatus also includes a leveling template (4), a lamination pressure plate (5), a magnet assembly fixture (6), and an upper pressure plate (7). This invention is reasonably designed and has good practical application value.

A terminal assembly for an encapsulated stator is provided. The terminal assembly includes an elbow terminal and an insulating tube. The terminal assembly allows for joining of magnet wire and lead wire at a 90 degree angle. A terminal assembly for an ESP motor head is provided. The terminal assembly includes a terminal, an insulation tube, and a sleeve. The insulation tube is disposed in the motor head pothole. The terminal is disposed within the insulation tube. An end of the terminal configured to receive a lead wire includes internal threads. The threads allow for accommodation of various lengths of lead wires extending from the stator.

In joining two insulated wires 106 together, e.g. in electric motor vehicle stator coils; the ends of the insulated wires can initially be stripped to form exposed ends 508, 512. Each exposed end of the wires can be bent (near the interface of the exposed ends and insulated sections), e.g. forming an angle 504, 506 of between 120° and 150° with the insulated sections. The exposed ends 508, 512 can then be clamped together, with the insulated sections 510, 514 extending away from each other; before the exposed ends 508, 512 are laser welded together. Spacing apart / separating the insulated sections 510, 514 from each other, via the bending, can reduce insulation damage from laser welding heat. The insulated wires 106 may be I-pins or hairpins in a stator. The clamp may be of copper, with high thermal conductivity, to help draw away heat; to further protect wire insulation from damage.

An electric winding assembly includes a conductor core having a first end and an opposing second end, an insulation layer overlying the conductor core, and a conductive shield layer overlying the insulation layer. The conductive shield layer includes an insulative carrier circumferentially surrounding the insulation layer and a conductive layer disposed on the insulative carrier, the insulative carrier formed from a material having a thermal rating greater than 180° C., the conductive shield layer having a surface resistivity between 1.5 and 10 ohms per square.

The invention provides a method for manufacturing a stator coil of a generator stator coil notch anti-corona structure, and relates to the technical field of generator stator coils, the stator coil manufactured by the method has the advantages of simple anti-corona structure, convenient process and easy design and manufacture, the anti-corona effect at the notch of the coil can be improved, and the anti-corona effect of the notch of the coil can be improved. And by adopting the design of the multi-layer composite material, the corrosion resistance of the corona discharge structure is improved, the durability of the coil corona discharge layer is enhanced, the electric corrosion of the stator coil at the notch outlet is avoided, and the stability of the corona discharge performance of the stator coil is ensured.

The present invention discloses an intelligent assembly device for motor stator insulation sheets, which belongs to the field of micro-motor assembly technology. The device comprises a frame and a tray conveyor installed at the front end of the frame, a turnover conveyor at the lower rear end of the frame, and a set of material sorting devices, a rotary pre-installation mechanism, a transverse movement mechanism and a closing mechanism are provided on both sides of the frame. A lifting mechanism, a robot and a flipping mechanism are installed in sequence in the middle of the frame from the rear end. A coding mechanism and a detection mechanism are installed at the front end of the right side of the frame. A plurality of work trays and a lifting mechanism are provided on the tray conveyor of the frame. The lifting mechanism can control the positioning and transportation of the work tray on the tray conveyor. The present invention can automatically complete the material sorting and feeding of the insulation sheets and the pre-installation rotation and transposition. After the closing assembly and installation of the A-side insulation sheet, the stator is flipped 180 degrees by the flipping mechanism. Then, the assembly operation of the B-side insulation sheet into the stator is completed. Finally, the stator coding and final inspection are completed. The device has a high degree of automation and can greatly improve the assembly quality of the product.

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 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).

For an electric machine (1) with a stator (5) having a stator lamination stack (10) and a rotor (3) having a rotor lamination stack (13), a lamination material for a sheet (11, 11a..11c) of such a lamination stack (10, 13) and a sheet (11, 11a..11c) for the lamination stack (10, 13) are disclosed, wherein an insulating layer (17) made of an electrically insulating material is printed onto a base layer (16) of soft iron and wherein the insulating layer (17) comprises insulating cutouts (20a, 20b) or unconnected insulating elements (18a..18d). Furthermore, a vehicle (22) with such an electric machine (1) and a method for producing a lamination material, a sheet (11, 11a..11c) and a lamination stack (10, 13) of the aforementioned type are disclosed.

The invention discloses a paper cutting and punching device for a flat wire paper inserting machine. The device is characterized in that the power form of the cutting and stamping processes of the insulation paper adopts a cam structure, a motor is adopted for driving, and the four processes that the insulation paper enters a forming die, the insulation paper is cut off, the insulation paper is stamped and formed, and the formed insulation paper leaves the die are completed in a cycle period. Cutting and forming of the insulation paper share one power system, so that the cost is saved, and the rhythm and the system stability are improved. According to the invention, the problem of collision caused by loss of an original point of a control motor or manual debugging by adopting an independent motor in the insulating paper cutting and stamping processes is fundamentally solved, meanwhile, a set of power system is saved, and the cost is reduced.

electric motor (1) comprising: - a rotor body (2) to which a plurality of permanent magnets (3) or a rotor winding can be attached, and - a shaft (4) for receiving the rotor base body (2), - wherein an insulating body (5) is attached between shaft (4) and rotor base body (2) to electrically insulate the rotor base body (2) from the shaft (4), - wherein the insulating body (5) engages at least partially in the shaft (4) and in the rotor base body (2) in order to connect the shaft (4) and the rotor base body (2) in a rotationally fixed manner, and - wherein the insulating body (5) is made of a composite of ceramic and plastic, characterized in that the insulating body (5) has a ceramic core (6) with at least a partial plastic sheathing (7).

There are provided first guide members inserted into the insides of the insulating members in the slots, second guide members inserted into the insides of the insulating members and onto outer sides relative to the first guide members in a radial direction in the slots, and a controller controlling movement of each of the first guide members and the second guide members. After the first guide member moves outward in the radial direction in the slot until coming into contact with or close to a second guide member, the plurality of second guide members are caused to sequentially move to an outer side of the stator core in the central axis direction in order with the second guide member closest to the first guide members first and retreat from the slot as the coil is moved outward in the radial direction by the pressers.

A stator for a brushless DC motor, the stator comprising: a plurality of coil windings; and a layered stack of laminations positioned around a centre axis, wherein the layered stack of laminations defines an annular shape, and wherein each lamination from the layered stack of laminations has: a first plurality of teeth, wherein the first plurality of teeth extend radially towards the centre axis and define a first plurality of channels between the first plurality of teeth, wherein each channel of the first plurality of channels is configured to receive at least a portion of a coil winding; a second plurality of teeth, wherein the second plurality of teeth extend radially away from the centre axis and define a second plurality of channels between the second plurality of teeth, wherein each channel of the second plurality of channels is configured to receive at least a portion of a coil winding; and wherein each of the first plurality of channels and the second plurality of channels is provided with a layer of electrically insulating ceramic material such that each coil winding of the 15 plurality of coil windings is electrically isolated from the layered stack of laminations.

The invention belongs to the related technical field of motors, and provides a high-speed disc-type permanent magnet motor and a preparation method of a double-source magnetic circuit composite rotor in order to solve the problems of stress and high-temperature excitation loss risks caused by the fact that a sintered permanent magnet of an existing high-speed disc-type permanent magnet motor serves as a magnetic excitation component, and the high-speed disc-type permanent magnet motor comprises a stator, a winding and the double-source magnetic circuit composite rotor; the double-source magnetic circuit composite rotors are symmetrically distributed on the two sides of the stator; the double-source magnetic circuit composite rotor is composed of a rotor yoke magnetic conductive ring, a sintered permanent magnet, a rotor support, a composite magnetic circular ring and a circular ring pressing plate. The composite magnetic circular ring is formed by winding multiple layers of units on the surface of the rotor support, each layer of unit is of a magnetic flexible glue and carbon fiber layer laminated structure, the reliability of the double-source magnetic circuit composite rotor under the high-speed working condition is improved, the eddy current loss of the double-source magnetic circuit composite rotor is reduced, and the high-temperature field loss risk of the double-source magnetic circuit composite rotor is avoided.

To improve heat dissipation of a coil.SOLUTION: A coil 20 includes a first coil part 21, at least a part of which is arranged in a slot 15, and a second coil part 22, one end of which is press-fitted into one end of the first coil part 21. An insulation resin 30 has a continuous filling part 31 to be continuously filled between an inner wall of the slot 15 and the first coil part 21, at a central part in the slot 15 in an axial direction. A positioning component (first positioning component 40) is arranged on one side of the continuous filling part 31 in the axial direction, and positions the first coil part 21 while at least a part of the positioning component is interposed between the inner wall of the slot 15 and the first coil part 21 in a circumferential direction of the stator core 10. A gap G between the first coil part 21 and the second coil part 22 which are press-fitted into each other is covered with the positioning component (first positioning component 40) in the circumferential direction.SELECTED DRAWING: Figure 8

A rotor (9, 9a, 9b) for an electric machine (1) is described, comprising a rotor shaft (10), a rotor lamination stack (11) mounted thereon with rotor laminations and rotor slots (12, 12a..12c) arranged therein, and rotor windings (13) arranged in the rotor slots (12, 12a..12c), which form end-face rotor winding heads. The rotor (9, 9a, 9b) also includes pole separators (17) which radially cover the rotor slots (12, 12a..12c), and a first end cap (15a) which axially closes the rotor lamination stack (11) with the pole separators (17) at its end face. In the first end cap (15a) first partition walls (16a, 16b) are provided, which divide a potting chamber arranged in the rotor (9, 9a, 9b) into several potting chambers (D1..D3), each of which extends into several rotor grooves (12, 12a..12c).Furthermore, an electric machine (1) with such a rotor (9, 9a, 9b), a vehicle (19) with such an electric machine (1) and a method for potting such a rotor (9, 9a, 9b) with a potting compound are specified.

The invention provides a rotor of a permanent magnet motor, a manufacturing method of the rotor, the permanent magnet motor and a wind generating set. The rotor includes: a rotating shaft; the iron core is assembled on the rotating shaft, and an iron core groove penetrating through the iron core in the axial direction of the rotor is formed in the iron core; the slot insulating part is provided with a hollow structure, at least one of the two axial ends of the slot insulating part is open, and the slot insulating part is inserted into the iron core slot; a seal disposed at the at least one of the two axial ends of the slot insulator; and the magnetic pole module is fixed in the groove insulating part through insulating impregnating adhesive. According to the rotor of the permanent magnet motor, the magnetic pole module can be effectively fixed, and meanwhile, the magnetic pole module is prevented from generating a thermal demagnetization phenomenon.

The utility model relates to a motor stator core winding notch structure, which comprises a stator core winding notch, and the stator core winding notch is provided with a chamfer structure at two end positions or one end position of the stator core winding notch in the height direction of an iron core to form an oblique angle or a circular bead or a natural melting collapse surface with a set size. The stator core winding notch is partially or completely provided with an insulation protection layer. Compared with the prior art, the utility model has the advantages that the winding can be directly carried out on the stator core under the condition of not adding extra parts such as an insulating framework, the cost is reduced, the winding slot fullness rate and the motor performance are improved, and the like.

An electrical machine stator can include a stator core (101) having a stator core shape and made of a core material (103), a plurality of windings (105) disposed in the stator core and made of a conductive material (107), and an insulative material (109) surrounding the plurality of windings and configured to electrically insulate each winding from each other adjacent winding, and / or to insulate one or more of the windings from the stator core. The insulative material can be an amorphous metal.

This invention discloses a double-layer lap-wound segmented stator structure, composed of multiple segmented stator cores spliced ​​together. Each segmented stator core has coils embedded in slots spaced apart along its circumference. The coils employ a double-layer lap-wound configuration. By adjusting the span between the coil output terminals in adjacent module slots, coils are prevented from bridging between two modules. A motor is also disclosed. This invention achieves electrical independence between the winding modules of the segmented motor, eliminating cross-coupling. Each module can be individually processed, impregnated, and transported to the final installation location for splicing, thereby reducing the manufacturing difficulty and transportation costs of the motor.

The invention relates to an electric machine (1) having a stator (5) with a stack of stator laminations (10) and a rotor (3) with a stack of rotor laminations (13), a sheet for laminations (11, 11a... 11c) of such a stack of laminations (10, 13), and a lamination (11, 11a... 11c) for such a stack of laminations (10, 13), in which an insulating layer (17) made of an electrically insulating material is printed on a soft iron base layer (16), and wherein the insulating layer (17) comprises insulating cutouts (20a, 20b) or non-connected insulating elements (18a... 18d). Further, a vehicle (22) having such an electric machine (1), and a method of manufacturing sheets, laminations (11, 11a... 11c) and laminations stacks (10, 13) of the above type are disclosed.

The utility model relates to a structure capable of automatically changing paper in the technical field of flat wire motor stator production. The structure comprises a first unwinding structure, a second unwinding structure and a paper feeding structure, the paper feeding structure comprises a first paper feeding assembly, a second paper feeding assembly and a paper feeding unit. The first paper feeding assembly is connected with the first unwinding structure; the second paper feeding assembly is connected with the second unwinding structure; the first paper feeding assembly is used for feeding paper of the first unwinding structure to the paper feeding unit; and the second paper feeding assembly is used for feeding the paper of the second unwinding structure to the paper feeding unit. The first unwinding structure and the second unwinding structure serve as mutually standby unwinding structures, when one roll is used up, the other roll of paper is automatically replaced, and manual intervention is not needed. The production takt is not influenced and the production efficiency is improved.