489results about "Applying solid insulation" patented technology

The utility model discloses full-automatic stator coil taping equipment, which comprises a machine table, a guide rail is fixedly arranged on the machine table, two ends of the guide rail are respectively and fixedly provided with a base plate, one end, far away from the machine table, of each base plate is provided with a placement plate, and the placement plates are used for placing stator coils; according to the full-automatic stator coil taping device, constant-tension stable winding and binding are achieved in a limited space, and it is guaranteed that accurate transverse translation is conducted in the constant-tension winding and binding process; when the equipment is taped, the posture is stable, and the movement is accurate; after one side of the stator coil is taped, the stator coil does not need to be disassembled, and the other side of the stator coil can be taped only by turning over the stator coil, so that the step of repeatedly clamping and positioning is saved, and the taping efficiency is improved.

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.

The utility model relates to the technical field of motor manufacturing, and discloses a paper feeding device, including a frame, a conveying device and a chip removal device, wherein the conveying device includes two conveying units arranged relatively along a second direction, and is used to convey insulating paper along a first direction, and the chip removal device includes two chip removal components, and the two chip removal components are arranged relatively along the second direction on the side opposite to the two conveying units, and the second direction is perpendicular to the first direction, and the chip removal component includes a brush and an adsorbent, and the brush abuts against the conveying device along the second direction, and is used to brush away paper scraps on the insulating paper, and the adsorbent is arranged on one side of the brush along the first direction, and is used to adsorb paper scraps. The utility model provides chip removal components on the side opposite to the two conveying units, and the chip removal components include a brush and an adsorbent, and the brush removes paper scraps on the conveying device, and the adsorbent adsorbs paper scraps, so as to realize automatic paper feeding and automatic paper scrap removal at the same time, thereby improving production efficiency and product quality.

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 invention relates to a method for manufacturing a pump device (1) which has a metal housing (2) and a further component (3). A simplified, cost-effective, weight-reduced and environmentally friendly manufacturing of the pump device (1) is achieved by the component (3) having plastic (5) at least on one outer surface (4), wherein the outer surface (4) is connected to the metal housing (2) by means of thermal joining. The invention also relates to a pump device manufactured in this manner (1).

Rotor (1) for an electric machine, comprising: a rotor lamination stack (3) with an annular cross-section extending between an outer surface and an inner surface defining a bore; a plurality of wire windings spaced apart from each other at regular angular intervals and each configured to conduct current in a ring-shaped manner around the base of the rotor lamination stack (3) to induce a magnetic field, wherein the rotor lamination stack (3) is enclosed at each end by a star disk (10) for receiving the rotor winding ends (6), wherein the star disk (10) is each enclosed by an L-band (7) and the rotor lamination stack (3) with the wire windings is fixed in a transfer molding process by producing axially extending cooling channels (14).

A stator includes: a stator core having an annular shape, a coil, and a cover member having a cylindrical shape. The stator core includes a plurality of teeth portions that are aligned in a circumferential direction and a plurality of slots that are formed between the teeth portions which are adjacent to each other in the circumferential direction. In the coil, a plurality of conductor wire portions are wound around each of the teeth portions through the slots. The cover member is arranged to be inserted into an inner circumferential portion of the stator core such that an outer circumferential surface faces an opening on an inside in a radial direction of the plurality of slots. A foamable insulation member that covers an outer surface of the plurality of the conductor wire portions of the coil and is bonded to the outer circumferential surface of the cover member through the opening of the slots is loaded in each of the slots.

The invention discloses a stator coil copper wire assembling mechanism based on motor production, and particularly relates to motor production equipment, the stator coil copper wire assembling mechanism comprises a stator, insulation paper sleeves inserted into coil grooves of the stator and a pre-assembled flat wire group, the pre-assembled flat wire group comprises an adhesive layer and a metal layer, the stator coil copper wire assembling mechanism also comprises a plurality of auxiliary insertion angles driven to be inserted between two insulation paper sleeves; the paper fixing assembly comprises vertical attaching blocks connected to the two sides of the auxiliary inserting corner in a sliding mode. According to the invention, through the paper fixing assembly, during assembly, a plurality of auxiliary insertion angles are driven to get close to a stator in which an insulation paper sleeve is inserted, during assembly, a flat wire group is inserted along the insulation paper sleeve from a metal layer to an adhesive layer, and at the moment, a vertical fitting block moves to push against the middle section of the insulation paper sleeve; and a gap is formed between the insulation paper sleeve and the glue layer, so that the friction area between the insulation paper sleeve and the glue layer is reduced, the friction force is reduced, and the probability that the insulation paper sleeve is excessively immersed into the stator is reduced.

A composite wire bundle for a stator winding, a stator including a composite wire bundle, and a method of forming a composite wire bundle. The composite wire bundle includes a plurality of copper wires, wherein each of the plurality of copper wires include a first surface. The composite wire bundle also includes a copper-graphene multilayer composite applied to the first surface of each of the plurality of copper wires, wherein the copper-graphene multilayer composite includes a second surface. Further, the composite wire bundle includes a fluoropolymer matrix formed around the second surfaces and a jacket encapsulating the fluoropolymer matrix.

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).

The utility model relates to the technical field of stator coil inserting, in particular to a coil inserting die and a coil inserting machine, the coil inserting die comprises a push head and a push seat, the push head is located at the front side of the push seat, the push head and the push seat are connected through at least one connecting column, the push head and the push seat can be driven to move together, and the push head is located at the front side of the push seat. The push head is used for pushing a coil to insert the coil, and the push seat is used for pushing slot cover paper into a stator iron core. According to the wire inserting die provided by the utility model, the conventional structure is simplified and improved, a paper beating mechanism and a paper storage mechanism are removed, the push rod structure is simplified, and a simple wire inserting scheme which is simple in structure and low in cost is formed.

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.

According to the technical scheme, the paper pushing and forming equipment is characterized in that the paper pushing and forming equipment comprises a creasing mechanism, and the creasing mechanism is used for carrying out creasing on the position, needing to be folded, of insulation paper; the forming die is arranged between the creasing mechanism and the stator, and a forming groove matched with the folded insulation paper is formed in the forming die; the pressing plate is arranged above the forming groove, the bottom of the pressing plate is attached to the inner side, formed after paper folding, of the insulation paper, and the pressing plate can move up and down so that the insulation paper above the forming groove can be pressed into the forming groove to be formed; the paper cutting mechanism is used for cutting off the insulation paper before the insulation paper is formed; the paper pushing mechanism is used for inserting the formed insulation paper in the forming groove into the stator; and through the arrangement of the creasing mechanism and the forming groove, the insulation paper can be accurately formed into the shape needing to be formed, so that the paper jamming problem caused by the fact that the shape does not meet the requirement is not likely to occur.

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.