19results about "Applying solid insulation" patented technology

The utility model relates to the field of stator production especially relates to a motor stator insulation paper automatic folding insertion device, including L -shaped frame and rotating disc, the L -shaped frame is opened and has through -hole, paper feed slot and insert paper slot, the U -shaped frame that sets up in L -shaped frame lower surface front side installs electric control push rod no. 2, and its telescopic end passes through the through -hole and is connected with the telescopic assembly of L -shaped frame upside, and the telescopic end of telescopic assembly installs and inserts the assembly, and telescopic assembly is slidably connected with L -shaped frame through the limiting assembly, rotating disc is rotatably installed at the rear surface of L -shaped frame through its own rotating shaft, and the rotating shaft front end of rotating disc installs rotating assembly, and the rear surface of rotating disc is provided with inner support chuck, and L -shaped frame is installed with drive assembly and positioning assembly, the utility model is applicable to the stator production of multiple specifications, realizes the automatic folding of insulation paper and accurate insertion, significantly improves production efficiency, and ensures the stability and accuracy of insulation paper insertion.

The present invention relates to a method for sealing and / or caulking a rotor (116) for an electric motor (102), which is in particular designed as an externally excited synchronous motor, the method comprising providing a rotor (116) having a rotor core arrangement that can be fixed to a rotor shaft (119) in a rotationally fixed manner, wherein the rotor core arrangement has several rotor teeth (124) distributed in a circumferential direction, wherein an axial longitudinal groove (128) is formed between adjacent rotor teeth (124), and wherein a rotor winding group (138, 140) is arranged around each of the rotor teeth (124);Forming a closure element (146) for closing an intermediate gap (130) between two opposing pole shoes (126) of two adjacent rotor teeth (124), such that the closure element (146) extends in an axial direction connecting the pole shoes (126) to define an elongated cavity (150) for receiving a groove closure part (170); wherein the closure element (146) is formed from a polymer by means of a forming process using at least one tool element (201, 202, 206, 207) that forms at least a portion of the shape. The present invention further relates to a rotor (116), an electric motor (102), and an at least partially electrified vehicle (100).

The application discloses a motor rotor assembling device and an assembling process, and belongs to the technical field of motor manufacturing. The device comprises an oven, a bearing plate, a roller, a variable resistor, a hot air pipe and an exhaust pipe. The bottom of the bearing plate is provided with a bottom plate and is in contact with the roller. The bottom of each rotor is provided with a support and a sliding plate I. The bottom of the support is provided with a rotating rod and is rotationally connected to the sliding plate I. The two sides of the support are provided with rotor shaft grooves. A top rod I is vertically slid under each row of rotors. The top rod I is rotationally arranged on the bottom plate and is in contact with the sliding plate I. A sliding plate II is slid on the sidewall of the bottom plate. The end of the top rod I is rotationally connected to the sliding plate II. The sliding plate II is rotationally provided with a top rod II. The inner wall of the oven is provided with a top plate. The top plate is provided with an inclined surface near the inlet and outlet of the oven and is matched with the top rod II. The oven is provided with a first driving assembly for driving the rotation of the rotor. The application has the effects of improving the consistency of the insulation powder curing, the insulation performance of the motor rotor and the product yield.

The present invention relates to a method for sealing and / or caulking a rotor (116) for an electric motor (102), which is in particular designed as an externally excited synchronous motor. The method comprises providing a rotor (116) having a rotor core assembly that can be fixed to a rotor shaft (119) in a rotationally fixed manner, wherein the rotor core assembly has several rotor teeth (124) distributed in a circumferential direction, wherein an axial longitudinal groove (128) is formed between adjacent rotor teeth (124), and wherein a rotor winding group (138, 140) is arranged around each of the rotor teeth (124). The method further comprises providing a sealing element (146) for closing an intermediate gap (130) between two opposing pole shoes (126) of two adjacent rotor teeth (124), such that the sealing element (146) extends in an axial direction connecting the pole shoes (126).The method further comprises impregnating the rotor winding groups (138, 140) with a potting material by a forming process using at least one core (152) to form an elongated cavity (154) which extends in a circumferential direction between two mutually facing impregnation surfaces (156, 157) of an impregnation (158, 162) within which the rotor winding groups (138, 140) attached to the adjacent rotor teeth (124) are enclosed, and in a radial direction between the closure element (146) and a groove base (132) of the longitudinal groove (128).

The invention relates to an electric machine (1) having a rotor (3) and a stator (2), wherein the stator (2) and / or the rotor (3) have an electric plug-in winding (4) comprising a plurality of rigid, insulated electric conductor elements (5), wherein the conductor elements (5) are arranged in slots of the stator (2) or the rotor (3) and protrude with conductor ends (17) from the slots, wherein the conductor ends (17) of the conductor elements (5) are respectively connected with the conductor ends (17) of other conductor elements (5) of the conductor elements (5) to form the electric plug-in winding (4), wherein the conductor elements (5) have an electrically insulating insulation sheath (9), characterized in that each conductor element (5) comprises a plurality of flexible fibers (8), in particular a plurality of flexible fibers of a conductor strip made of carbon nanotubes or graphene, and the insulation sheath (9) surrounds the plurality of fibers (8) in a hose-like manner and is configured in such a way that the insulation sheath imparts a rigid shape to the electric conductor element (5).

A semiconductive member according to one embodiment of the present disclosure comprises: semiconductive resin layers that are disposed on a fibrous insulating substrate, and that contains silica particles, conductive particles, and silsesquioxane in thermosetting resin. The silica particles are unevenly distributed on the surface of the semiconductive resin layers.

A method for manufacturing a plug-in coil wire (22) for a stator of an electric rotary machine, wherein the stator comprises: a stator core (12) having a closed stator ring (14) from which stator teeth (16) extend, between which stator slots (24) are formed, and which point towards an air gap arranged at an end radially opposite to the closed stator ring (14), wherein one or more plug-in coil wires (22) are inserted into the stator slots (24), and wherein at least one plug-in coil wire (22) in the axially extending section (28) arranged within the respective stator slot (24) has an axially extending slot (30) by which the plug-in coil wire (22) is divided into two wire parts (32, 34) between which an insulating layer (54) is formed, wherein at the ends (36) projecting axially beyond the stator core (12) of each plug-in coil wire (22) is designed as a solid body (38),wherein the slot (30) of the plug-in coil wires (22) is produced by wire EDM, water jet cutting or laser beam cutting, characterized in that the stator (10) with the plug-in coil wires (22) inserted therein is sprayed with an insulating varnish and dried to form the insulating layer (54) in the slot (30), around the plug-in coil wires (22) and in the stator groove (24) between the stator teeth (16) and the plug-in coil wires (24).

A method for manufacturing a stator (12) for an electric motor (10) of a fluid pump is described. In a first process step, a stator core (12) is provided which is equipped with several windings (20). The stator core (12) is inserted into a mold (46) such that a portion of the stator core (16) is supported against an inner wall of the mold (46) in such a way that the remaining portion of the stator core (16) maintains a defined distance from the inner wall of the mold (46). Subsequently, the stator core (16) is overmolded with plastic in the mold (46) such that the plastic overmolding forms a stator housing (18), whereby the portion of the stator core (16) that is supported in the mold (46) remains free of plastic. Furthermore, an electric motor (10) for a fluid pump is described.

The application discloses a protection mechanism and method for an EPS motor rotor magnet, relates to the technical field of rotor protection, and comprises a rotor, winding equipment and a workbench, the outer surface of the rotor is divided into a first magnet segment, a second magnet segment and a third magnet segment by the permanent magnets, and the outer surfaces of the first magnet segment, the second magnet segment and the third magnet segment are sequentially wound with Kevlar fiber threads by the winding equipment; in the application, Kevlar fiber threads are used on the EPS motor rotor, a layer of glue is coated on the Kevlar fiber threads after the Kevlar fiber threads pass through a glue box provided with ST-150HP, the Kevlar fiber threads are wound on the magnet surface by the equipment, the ST-150HP has low-temperature curing characteristics, and the demagnetization of the permanent magnet due to high temperature is prevented; due to the high tensile strength, high toughness, temperature resistance, low density of the Kevlar fiber thread material and the high toughness, temperature resistance and moisture resistance of the ST-150HP, even if the rotor generates high temperature under high speed, the winding effect of the Kevlar fiber threads will not be affected, so that the safety of the EPS motor is ensured.

The application relates to a wire cutting device of a winding machine, which comprises a cylinder, a guide sleeve and a sliding shaft, the sliding shaft is slidingly arranged in the guide sleeve, the outer end of the sliding shaft is provided with a wire clamping block and a wire cutting knife, the front end of the guide sleeve is provided with an opening and a wire clamping hook, the wire clamping hook is provided with a wire clamping groove matched with the wire clamping block, the two ends of the wire clamping groove respectively extend to the first side surface and the second side surface of the wire clamping hook, the sliding shaft is rotatably provided with a first straightening and pressing arm and a second straightening and pressing arm, and the guide sleeve is provided with a spring between the guide sleeve and a shaft coupling. The first straightening and pressing arm and the second straightening and pressing arm can clamp the wire end of the enameled wire on the wire clamping hook after the wire is cut, the straightening and pressing arms can straighten the wire end of the enameled wire when the enameled wire is pulled out of the wire clamping groove, so that a rubber tube can be conveniently sleeved on the wire end of the enameled wire of the motor, the wire end does not need to be cut in the later period, and the rubber tube is very easy to sleeve, so that the application is convenient to use and high in production efficiency.

To solve the problem in which, in a structure where only an insulator of a stator core is connected, the gripping force is weak and the stator core may be split in a process of manufacturing a motor by combining a stator and a rotor.SOLUTION: It is possible to provide a manufacturing method of a stator having stable magnetic properties, which prevents splitting and misalignment of a stator core by melting and fixing at least a part or the whole of either of a joint portion of adjacent split cores and a joint portion of adjacent insulators of the stator core arranged in a circular shape.SELECTED DRAWING: Figure 13

The invention relates to an electric machine (10) for a motor vehicle, with a rotor (12) which has radially arranged slots (18) between two respective pole elements (16), into which V-shaped sheet metal elements (20) can be inserted for the mechanical fixing and / or support of windings (22) in the slots (24) of the pole elements (16) bounded by the T-shaped slot webs (26), wherein a respective upper edge of the respective sides of the V-shaped sheet metal element (20) has at least one respective tab (30) projecting from the upper edge, wherein the edges engage below the T-shaped slot web (26) and the tabs (30) bear laterally against the T-shaped slot web (26) by means of the residual tension of the V-shaped sheet metal element (20). The invention further relates to a V-shaped sheet metal element (20) and a method.

The present invention provides a method for manufacturing a rotating electric machine that allows for easy assembly of the stator core and insulator. [Solution] A method for manufacturing a rotating electric machine comprising a winding L, an annular stator core 3 having a plurality of teeth 32 extending radially inward and distributed circumferentially, and an annular insulator 4 disposed between the teeth 32 and the winding L to insulate them, wherein the insulator 4 includes an inner circumferential covering portion that covers the inner circumferential surface of the stator core 3, and a pair of side covering portions 43, 43 integrally formed with the inner circumferential covering portion and covering both sides of the teeth 32 in the circumferential direction, the pair of side covering portions 43, 43 having a tip portion 45 protruding from at least one of the end faces 34, 35 on both sides of the teeth 32 in the axial direction, and a winding step in which the winding force of the winding L bends the pair of tip portions 45, 45 toward the end face 35 in the axial direction of the stator core 3 when winding the winding L to the outer circumference of the pair of side covering portions 43, 43.

The present application relates to the technical field of stator winding assembly, in particular to a stator winding layered insulation assembly system and a end hoop preloading positioning method thereof, through adjustable radial tension combined with laser online measurement and feedback control, the roundness and axial position of the end hoop are precisely calibrated and locked to establish a high-precision assembly reference; then the lower wire bar crimping assembly and the upper wire bar misplacement insertion are performed based on the reference, and the laser is used to monitor the wire bar gap in real time to dynamically adjust the assembly parameters; finally, the winding is vacuum pressure impregnated and solidified by staged gradient heating. The present application realizes the excellent effect of winding overall roundness error ≤0.2mm and insulation dielectric loss lower than 0.8%, effectively eliminates air gap discharge, and improves the assembly efficiency, and is particularly suitable for on-site assembly of large-capacity hydro-generator stator.

The utility model provides a kind of tape reel yaw device, including the rotation axis that can drive tape reel yaw, rotation axis is connected transmission arm, further including telescopic drive unit, the telescopic drive unit has movable end and fixed end, movable end and transmission arm one end articulate.The tape reel yaw device presented by the utility model, using the rotation of telescopic drive unit and transmission arm articulated with each other drive rotation axis, so as to drive tape reel yaw, since there is no excessive transmission intermediate piece, yaw control precision is higher, and yaw angle control precision will not decline due to the abrasion of transmission piece.Using the tape head of the tape reel yaw device also has therefore better stacking rate control precision.

The invention relates to a tool (1) for closing stator slots (2) of a wound stator (3) of an electric machine by axially drawing in an insulating material (4). The tool (1) comprises a cylindrical ring-shaped attachment element (5) with a receiving opening (6) that is supported axially on the stator (3) in the drawing-in direction (7) of the insulating material (4), and an axially displaceable actuating plunger (8) that engages through the receiving opening (6). Furthermore, it has a drawing element (9) with a first cylindrical section (10) that can be displaced through the stator (3) with some play in the drawing-in direction (7), and a second cylindrical section (12) with a smaller diameter (13) than that of the first cylindrical section (10). A cylindrical cover element (14) is arranged behind the second cylindrical section (12), which is actuated by the actuating plunger (8).The axial extent (15) of the insertion element (9) is greater than that of the stator slots (2). The outer surface (16) of the second cylinder section (12) has several axial receiving slots (17) for receiving the insulating element (4), which are bounded by the first cylinder section (10) and the cover element (14) and can be aligned with the stator slots (2).

Rotor (1) for an electric machine (101), comprising: - a rotor core (2) with a plurality of radially outwardly extending rotor legs (3), - a number of excitation windings (4) corresponding to the number of rotor legs (3), each wound around one of the rotor legs (3), and - a cup-shaped end cap (5) that covers the excitation windings (4) at the end face and has a through-opening (6) for a shaft (7), wherein the excitation windings (4) and the end cap (5) define spaces (16) in which a potting compound (17) is arranged.

A single coil, particularly for a stator, preferably of an electric machine, especially an electric motor or generator, comprising a metal component and an insulating material, manufactured by: a. injection molding the metal component in an injection mold, wherein the injection mold corresponds to an expanded form of the single coil, b. applying at least one layer of the insulating material to at least one insulating section of the metal component, preferably to the individual turns of the coil, c. compressing and / or folding the metal component to transfer it from the expanded form of the single coil into a usable form.