175results about "Windings insulation material" patented technology

A stator for an axial flux machine includes a plurality of units (100; 200; 400) disposed generally circumferentially around an axis. Each of the units (100; 200; 400) is operable to generate a magnetic field generally parallel to the axis. Each of the units (100; 200; 400) respectively includes: an axially extending stator core tooth (102T; 202T; 402T) defining at least part of a stator core, and a set of windings (102C; 202C; 402C) wound around the stator core tooth. The stator includes a heat dissipation arrangement for facilitating dissipation of heat from the stator core during operation of the stator. By facilitating dissipation of heat generated or accumulated in the stator core during operation of the stator, the performance, efficiency and / or lifespan of the stator can be improved.

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

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

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

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

A rotary electric machine stator includes: a stator core; a stator coil mounted on the stator core and including coil ends at both ends in an axial direction; and an insulating material portion provided at the coil ends and formed by a foam varnish. The insulating material portion includes, on a surface thereof, an uneven portion caused by foaming.

An electric machine is described comprising a stator with a plurality of slots and an insulating ring covering one end of the stator. The insulating ring is provided with a plurality of chamfered openings aligned with the slots, a circumferential rib, and a recessed area extending from the rib to the openings. Windings are wound within the slots without conventional slot linings and extend away from them.

Provided are an insulated wire and a preparation method thereof, a coil and an electronic / electrical device. The insulated wire includes a conductor and an insulation layer arranged on an outer periphery of the conductor, where a material of the insulation layer is obtained by mixing and pelletizing resin A and resin B. A material obtained by mixing contains units as shown in Formulae 1-3: where a molar proportion of the unit shown in Formula 1 is 3%-17%, a molar proportion of the unit shown in Formula 2 is 37%-77%, and a molar proportion of the unit shown in Formula 3 is 20%-47%. The present invention can improve the adhesion between pure PEEK resin and copper conductor and enhance the flexibility of the insulation material.

To provide an insulated wire including a coat that is thin but has excellent insulation performance and a method for producing the same, and a production method that can produce such an insulated wire at a firing temperature of 250°C or lower while reducing the environmental load and cost.SOLUTION: An insulated wire includes a conductor wire, and an insulation film that coats the conductor wire. The insulation film comprises a cured product of an aromatic (poly)ether compound comprising bisphenol A and benzophenone.SELECTED DRAWING: None

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.

A curable adhesive sheet includes an electrically insulating substrate including a first major surface and a second major surface opposite to the first major surface. The curable adhesive sheet further includes a first adhesive layer disposed on the first major surface. The first adhesive layer is thermally expandable. The first adhesive layer includes a plurality of first portions alternating with a plurality of second portions such that the first adhesive layer is patterned. Each second portion is disposed between two adjacent first portions. Each first portion includes a thermally expandable adhesive. Each second portion is less thermally expandable than each first portion. The curable adhesive sheet further includes a second curable adhesive layer disposed on the second major surface.

Described herein are polymer compositions including at least 20 wt. % of a liquid crystal polymer (“LCP”); 10 wt. % to 40 wt. % of a flat glass fiber and 15 wt. % to 50 wt. % of boron nitride and / or zinc oxide. It was surprisingly discovered that polymer compositions including an LCP in conjunction with a combination of flat glass fibers and boron nitride and / or zinc oxide had improved thermal conductivity and flexural properties, relative to analogous polymer compositions having round glass fibers in place of the flat glass fibers.

The present invention relates to a high thermal conductive epoxy resin composition and a preparation method and use thereof. In particular, the present invention relates to an epoxy resin composition comprising (a) an epoxy resin, (b) a phenolic resin, (c) an inorganic filler, and (d) an additive, wherein the inorganic filler comprises crystalline silica, the crystalline silica comprises a first crystalline silica, the first crystalline silica has a D50 particle size of about 8-20 μm, a specific surface area of about 1.5-7 m 2 / g, and a total content of the inorganic filler is greater than about 50 wt% based on the total weight of the epoxy resin composition. Compared with other conventional epoxy molding compound solutions, the composition of the present invention, by selecting a combination of characteristic thermal conductive components, while retaining extremely high filling capacity, realizes significant heat dissipation efficiency improvement through its own higher thermal conductivity coefficient.

To provide an armature and a linear motor that are suitable for use in vacuum environment.SOLUTION: An armature 2 of a linear motor comprises: multiple coils 4 for generating a driving power corresponding to a flowing electric current; and a film 41 for coating the multiple coils 4 from outside, insulating each of the multiple coils 4, and reducing outgassing to the outer vacuum environment. The film 41 includes: an inorganic material such as glass and ceramics coated on the surfaces of the multiple coils 4; and / or an organic material such as fluororesin and polyimide coated on the surfaces of the multiple coils 4.SELECTED DRAWING: Figure 9

Provided is a motor coil substrate including a printed circuit board including an insulating substrate, in which a wiring pattern is disposed on the printed circuit board, the wiring pattern is configured to form a motor coil provided on either a stator or a moving body of a motor, and at least a portion of the insulating substrate includes a soft magnetic body.

An insulating tape (100) is impregnated with a liquid resin containing at least one of a bisphenol A-type epoxy compound having a repeating number of zero and a bisphenol F-type epoxy compound having a repeating number of zero. A microcapsule (130) includes an outer shell body and an inclusion material having a property of promoting curing of the liquid resin. A binder layer (120) is composed of a crystalline epoxy resin having a molecular structure in which two phenyl groups are linked by a single bond, a molecular structure in which two phenyl groups are linked by an ether bond, or a molecular structure in which two phenyl groups are linked by a methylene group.

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.

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 utility model discloses a high-reliability collaborative robot joint motor which comprises a rotor and a stator arranged outside the rotor. The rotor comprises a rotor hollow shaft and rotor magnetic steel which is adhered to the outer circular wall of the hollow shaft through anaerobic adhesive, and a spiral groove is formed in the outer circular wall of the rotor hollow shaft; the stator comprises a stator iron core arranged outside the rotor magnetic steel, a stator groove is formed in the outer wall of the stator iron core, and a coil support formed through injection molding is embedded in the stator groove; according to the utility model, the spiral groove is arranged on the outer circle wall of the rotor hollow shaft, so that when the rotor hollow shaft is bonded with the rotor magnetic steel, the bonding area and the glue storage amount of the rotor hollow shaft and the rotor magnetic steel are increased, the bonding force of the rotor magnetic steel is greatly improved, the rotor can cope with complex and severe working conditions in the use process of a motor, the reliability of the motor rotor is greatly improved, and the service life of the motor rotor is prolonged. And the situation that the rotor magnetic steel is stressed and falls off when the motor works due to insufficient bonding force possibly caused by direct bonding of the rotor hollow shaft and the rotor magnetic steel at present is avoided.

Provided is a curable epoxy composition which can be cured in a short time in the presence of oxygen and which has excellent filling properties. A curable epoxy composition containing an epoxy compound having an epoxy group in the molecule and a photo-cationic polymerization initiator, the curable epoxy composition being used for use in a rotary electric machine and / or a semiconductor. It is preferable that the curable epoxy composition substantially does not contain a curing agent other than a photo-cationic polymerization initiator. The curable epoxy composition may also include a polyol.

A pump for conveying a fluid, comprising a conveying housing (1, 4) having an inlet (2) and an outlet (3) for the fluid, an impeller (15) rotatable within the conveying housing (1, 4) for conveying the fluid, and an electric drive motor (10, 20) comprising a rotor (10) and a stator (20), the rotor being connected to the impeller for driving the impeller, the stator and the rotor jointly forming a running gap (14) around a motor axis (R). The stator comprises a stator core (21, 22, 23) having stator teeth (21) and tooth gaps remaining between the stator teeth, electric wires wound on the stator teeth (21) to form electric coils (25), a primary insulation layer (26) formed between a respective stator tooth (21) and the coil (25) surrounding the stator tooth (21) for electrically insulating the same, and a secondary insulation layer (28) formed in the tooth gaps for electrically insulating adjacent coils (25).

The invention belongs to the technical field of coatings, and particularly relates to a powder coating for a motor rotor as well as a preparation method and application thereof. The powder coating for the motor rotor is prepared from the following raw materials: o-methyl novolac epoxy resin, hydroxyl-terminated epoxy modified organic silicon resin, a curing agent, aluminum oxide, mica powder, kaolin and a modified corner coating aid. The modified corner coating auxiliary agent comprises polycaprolactone glycol modified epoxy resin. The specific o-methyl novolac epoxy resin, the hydroxyl-terminated epoxy modified organic silicon resin, the modified corner coating additive, the aluminum oxide, the super mica powder and the kaolin are adopted, and other components are combined, so that the powder coating has excellent corner coating performance, high voltage resistance and corner coating toughness.

Stators in downhole ESP motors often are used in the sorts of high temperature operations in which rigid, inorganic insulation may prove useful. However, such rigid insulation materials may have inherent manufacturability issues which can limit usage, for example in elongated motors of the sort often used with downhole electrical submersible pumps. Disclosed embodiments provide solutions for effectively insulating conductor portions in the slots of a stator lamination in an ESP motor, and for effectively manufacturing, managing inventory for, and assembling improved stators.

The utility model provides an insulating framework, a motor stator assembly and a motor, and the insulating framework comprises a first insulating baffle plate and a second insulating baffle plate which are respectively disposed on the end surfaces of two opposite sides of a stator iron core, and a plurality of insulating support plates disposed between the first insulating baffle plate and the second insulating baffle plate. The first insulation baffle is provided with first tooth portion blocking pieces corresponding to the end face positions of all stator teeth of the stator core, the second insulation baffle is provided with second tooth portion blocking pieces corresponding to the end face positions of all the stator teeth of the stator core, and an insulation supporting plate is supported between at least part of the first tooth portion blocking pieces and the second tooth portion blocking pieces. And the non-deformability of the insulating support plate is higher than that of the first insulating baffle plate and the second insulating baffle plate. According to the utility model, the generation of iron core tooth part stress and the reduction of tooth part sheet layer spacing caused by winding of the winding are avoided, the insulation performance between the tooth part sheet layers is ensured, and the magnetic performance after the stator winding is wound on the stator iron core is ensured to be at a better level.

An electromagnetic coil (200) includes a compact multi-turn coil (210b) with at least one conductor (211) coated with a first insulation material (212). The conductor has a plurality of turns (213), compacted to bring neighbouring turns into physical contact. The first insulation material (212) has a first melting temperature. The main function of the first insulation material (212) is to have a turn-to-turn insulation. The coil also includes a coil liner (220) made of a second insulation material with a second melting temperature lower than or equal to the first melting temperature. The coil liner (220) provides electrical insulation between the compact multi-turn coil (210b) and a core of an electromagnetic device. This integrated insulation ensures reliable operation when the electromagnetic coil (200) is positioned over the core of the electromagnetic device.

The utility model relates to the technical field of motor stators, and discloses a motor stator outgoing line assembly, which comprises a welding table, the upper surface of the welding table is fixedly connected with a stator body, the inner wall of the stator body is provided with an insulating layer, and the inner wall of the insulating layer is fixedly connected with a high-temperature-resistant layer. And the inner wall of the high-temperature-resistant layer is fixedly connected with a silica gel layer. According to the utility model, the polyimide film is a good high-temperature-resistant material, so that the overall heat resistance of the high-temperature-resistant layer can be improved, the motor can still operate normally and stably in a high-temperature environment, and the silicon rubber has good corrosion resistance and wear resistance, so that the overall corrosion resistance and wear resistance of the silica gel layer can be improved; the electronic coil is effectively protected from being corroded by external air, through mutual cooperation of the insulating layer, the high-temperature-resistant layer and the silica gel layer, the operation stability of the motor is improved, the electronic coil is protected from being corroded by the external air, and the service life of the electronic coil is prolonged.

A stator core containing a stator body from which extends a plurality of spaced apart slot segments between which intermediate slots are defined and an insulative member disposed within at least one of the intermediate slots is provided. The insulative member contains a polymer composition comprising a polymer matrix that includes a thermotropic liquid crystalline polymer. The polymer composition exhibits a melt viscosity of about 300 Pa-s or less and a deflection temperature under load of about 170℃ or more.

The motor includes a stator core having a plurality of slots, a stator coil disposed in the slots and configured by connecting a plurality of segment coils, and an insulating material configured by a foaming material having insulation property and covering each connection portion of the segment coils. Each connection portion of the segment coils has a structure in which each end portion in which the conductor portions of two segment coils are exposed is inserted from both ends into a fitting member having a cylindrical shape, at least one through-hole is formed in a side wall of the fitting member having a cylindrical shape, and the insulating material extends from the inside of the fitting member to the outside through at least one through-hole.