192results about "Applying solid insulation" patented technology

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 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.

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.

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 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).

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.

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.

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.

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.

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.

The structure comprises a first stator iron core and a second stator iron core which are detachably connected in the circumferential direction, the two ends of the first stator iron core and the two ends of the second stator iron core are provided with end portion insulating pieces with the front sections and the rear sections independent from each other respectively, and the two sections of insulating modules are internally provided with insulating units corresponding to the stator iron cores. And a continuous wiring channel is formed through the through wire passing layer. Compared with an existing integral injection molding structure, the problems of large edge rolling stress, scrap iron mixing and the like caused by high stack thickness are effectively avoided; the interphase creepage distance is obviously increased through the whole-course orderly winding and the interphase isolation baffle at the common end; and meanwhile, the layout and the insulation thickness of the terminal seat are optimized in a screw hole area, the compatibility of high-voltage insulation and iron casing assembly is considered, and the structure is suitable for a high-voltage high-power motor of over 690 V.

In an electric motor (310), an electrical insulation body (70) includes a first insulation part (71), a second insulation part (72), and a third insulation part (73). The third insulation part includes a first side surface insulation body (731) disposed on a first side surface of a tooth base part (842) of a stator tooth (84) on the first side in a circumferential direction (DX), a second side surface insulation body (732) disposed on a second side surface of the tooth base part of the stator tooth on a second side in the circumferential direction, and a connection part (733) that connects the first side surface insulation body and the second side surface insulation body. The connection part is disposed on the first side in the axial direction with respect to the tooth base part while being in contact with a first insulation part.

To provide a resistance measuring device that can suppress the decrease in insulation performance after measuring the insulation resistance of a stator coil. [Solution] The resistance measuring device according to the present invention is a resistance measuring device for measuring the insulation resistance of a stator coil wound around a stator core which is a magnetic material, and comprises a resistance measuring unit for measuring the electrical resistance of a part to be measured, and an electrode connected to the resistance measuring unit via wiring for contacting the conductor of the stator coil, wherein the electrode has a hollow structure, and holes are provided in the hollow structure for injecting resin and for discharging the resin from the inside of the hollow structure.

The present invention relates to an insulation system (1) for insulating electrical machines, comprising A) at least one insulating paper (2) comprising a first protective layer (4) and an insulating layer (6), and B) at least one cover layer (10), wherein the cover layer (10) has a CTI value according to IEC 60112 of > 600 V and / or a PLC / PTI value according to UL 746 of zero. The invention further relates to the use of the insulation system (1) for insulating electrical machines and to insulation (100) obtained or obtainable from the insulation system (1). The invention also relates to a stator (200) of an electrical machine, wherein the stator core (202) has insulation (100) at the slots (214a, 214n). The invention further relates to a method for insulating an electrical machine.

The problem to be solved by the present invention is to provide a stator which is provided with an insulator capable of circulating a cooling liquid between a conductor and a slot, and which can be easily and economically manufactured. In order to solve the problem, the present invention provides a stator provided with a conductor in a slot formed in a stator core, and an insulator disposed between the slot and the conductor, the stator having a cooling liquid flow path through which a cooling liquid flows between the slot and the conductor, the insulator having a foaming layer that foams by being heated in the slot, and the insulating layer having an insulating layer that foams by being heated in the slot. The foaming layer has: a foaming function section that fills the gap between the slot and the conductor by means of a heating foaming function; and a foaming function reduction part which is thinner than the foaming function part due to the fact that the heating foaming function of the foaming layer is lower than that of the foaming function part, and a gap through which the cooling liquid can flow is formed between the slot and the conductor.

The application discloses a kind of multi-station coordinated stator wire harness hot sleeve assembly method and system, it is related to motor component assembly technical field;Construction station twin model, AGV distributes material with RFID label according to tempo, PLC dynamic replenishment;After wire stripping and tin, 3D vision guides mechanical arm and inserts wire according to slot, force control adjusts insertion angle;Double-shaft platform adjusts stator and heating coil coaxial alignment, infrared sensor aims sleeve;PLC controls heating power, time, rotates stator to ensure uniform heating, mechanical arm advances sleeve and pressure monitoring;Air cooling-water cooling-natural cooling, temperature feedback adjusts parameter;Insulation, appearance, conduction, tension detection, data binding stator ID upload traceability.The application improves efficiency through digital twin, optimizes hot sleeve parameters to ensure fit quality, graded cooling enhances stability, full-dimension detection and traceability improves controllability, intelligent early warning reduces maintenance cost, adapts to batch production demand.

A stator including: a conductor disposed in a slot formed in a stator core; and an insulator disposed between the slot and the conductor, the stator including a coolant flow path through which a coolant flows between the slot and the conductor. The insulator includes a foam layer that foams when heated inside the slot. The foam layer includes: a foaming-function portion that fills a gap between the slot and the conductor by exhibiting a heat-induced foaming function; and a foaming-function reduction portion that is thinner than the foaming-function portion due to a reduction in the heat-induced foaming function of the foam layer, and that forms a gap between the slot and the conductor through which the coolant can flow.

The invention relates to the technical field of production of brushless doubly-fed motors, and discloses a brushless doubly-fed motor assembly process, which comprises the following steps of: performing insulation treatment on the surface of a bent electromagnetic wire, and mounting the electromagnetic wire into a groove of a stator or a rotor; welding the end part, outside the groove, of the electromagnetic wire, winding an insulating tape on the welding part at a first set tension, and fixing the insulating tape to form a first insulating layer B; and forming a second insulating layer on the surface of the welding part with the first insulating layer B. When insulation treatment is carried out on a welding part, first set tension can be kept when an insulating tape is wound by utilizing an auxiliary tool, the situation that the insulating tape is loosened after being wound is prevented, and the situation that the winding quality cannot be guaranteed and the insulation effect is affected due to pure manual operation is avoided; moreover, a second insulating layer is also formed on the surface of the first insulating layer B, so that the insulation reliability is further ensured, the safety fault risk of the motor is reduced, and the maintenance cost is reduced.

The present invention relates to a coil component (10) for an automotive electric machine, the coil component (10) comprising a support body (12) having a plurality of axially extending slots (14) spaced apart in a circumferential direction (U) of the support body (12), a plurality of hairpin bodies (16) at least partially disposed within the slots (14), and at least one insulating member disposed in one of the slots (14), which electrically insulates the hairpin body (16) disposed in the slot (14) from a slot wall of the support body (12) that defines the slot (14). The insulating members (18, 30, 36) are supported against the slot wall of the support body (12) via a wedge-shaped portion (28), thereby converting a force acting on the wedge-shaped portion (28) in the axial direction (A) into a force acting in the circumferential direction (U), which presses the insulating members (18, 30, 36) against the hairpin body (16) in the circumferential direction (U). Regarding coil components.

Linear motor utilizing a magnetic field generated by a field magnet (23) and a current flowing through several coils (24) to generate thrust for linear movement of the coils (24) relative to the field magnet (23), the linear motor comprising: the field magnet (23) having magnets arranged such that north and south poles are magnetized alternately in the direction of linear movement;and an armature that surrounds the coils (24) surrounding the field magnet (23), a coil holder (25) for holding the coils (24), and a shaped body (22) that covers the coils (24) and the coil holder (25), a rod (21) having the field magnets (23) passing through the coils (24), wherein the coil holder (25) has a holder main body (25a) extending in the direction of linear motion over the length of the coils (24), and several spacers (25b), each of which is provided between adjacent two of the coils (24), wherein the shaped body (22) is an insulator and has a thermal conductivity of 2 W / (m·K) or more, and wherein the coil holder (25) is an insulator and has a thermal conductivity of 2 W / (m·K) or more.

The device according to the invention for receiving and attaching phase separators (PT) to a winding body (W) of electrical machines comprises a pivotable and rotatable cylindrical application head (K) about its axis. The application head (K) has a contact surface (A) on its circumference for receiving a phase separator (PT) on which the phase separator (PT) comes into contact with a non-adhesive side as soon as the application head (K) has received the phase separator (PT) from a dispensing device (S).Furthermore, the application head has a fixing device (F1,F2) for mechanically fixing the phase separator (PT) to the support surface (A), wherein the fixing device (F1,F2) is designed such that when the phase separator (PT) provided by the dispensing device (S) is picked up, the fixing device (F1,F2) engages on the adhesive side of the phase separator (PT) facing the winding body (W) in at least one predefined area (B1,B21,B22) without adhesive and thus fixes the phase separator (PT) to the support surface (A) of the application head.

The utility model discloses a clamp device of a stator. The clamp device of the stator comprises a base; the clamping assembly is arranged on the base, the clamping assembly comprises a first clamping piece and a plurality of second clamping pieces, the first clamping piece is rotationally arranged on the base, the second clamping pieces are arranged on the first clamping piece, and the second clamping pieces and the first clamping piece form containing cavities for clamping the stator. Therefore, the fixture device of the stator can facilitate the overturning of a plurality of stator iron cores with windings, so that the paint dipping and baking efficiency of the plurality of stator iron cores with windings can be improved.

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.

Disclosed is a method for manufacturing a laminated core, including: a laminated core manufacturing step of manufacturing a laminated core by laminating a lamina member having an adhesive layer formed on a surface thereof; an adhesive layer curing step of curing the adhesive layer by heating the laminated core by high frequency induction-heating; a resin filling step of filling a resin filling part of the laminated core with a resin; and a resin curing step of curing a resin filled in the laminated core. With this method, by curing an adhesive layer with high frequency induction-heating and filling the resin in a state in which a residual heat of the laminated core is maintained, a process for preheating the laminated core for the resin filling may be omitted, and therefore, there is an effect of saving time and expenses consumed in the pre-heating process.

A motor stator structure comprises a stator body and a plurality of insulating paper sheets. The stator body comprises a plurality of silicon steel sheet stacks and is provided with a plurality of winding grooves surrounding the stator body in the circumferential direction. And a plurality of insulating paper sheets are respectively inserted into the plurality of winding grooves. Each insulating paper sheet penetrates through the stator body along an axial direction and is reversely folded towards the end face of the stator body from at least one axial end of each insulating paper sheet to form a reversely folded sheet. The plurality of reverse folding sheets of the plurality of insulating paper sheets in the first group protruding out of the plurality of winding grooves abut against a first end face of the stator body. The plurality of reverse folding sheets of the plurality of insulating paper sheets in the second group protruding out of the plurality of winding grooves abut against a second end face of the stator body. The positions of the first group and the second group of the plurality of winding grooves in the circumferential direction are alternated with each other. The first end face and the second end face are opposite to each other in the axial direction.

In an electric motor (310), an electrical insulation body (70) includes a first insulation part (71), a second insulation part (72), and a third insulation part (73). The third insulation part includes a first side surface insulation body (731) disposed on a first side surface of a tooth base part (842) of a stator tooth (84) on a first side in a circumferential direction (DX), a second side surface insulation body (732) disposed on a second side surface of the tooth base part of the stator tooth on a second side in the circumferential direction, and a connection part (733) that connects the first side surface insulation body and the second side surface insulation body. The first insulation part has a through hole (718) penetrating through the first insulation part at least substantially in the circumferential direction, and the connection part is disposed in the through hole.