WO2017085860A1 - 電動機 - Google Patents

電動機 Download PDF

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Publication number
WO2017085860A1
WO2017085860A1 PCT/JP2015/082677 JP2015082677W WO2017085860A1 WO 2017085860 A1 WO2017085860 A1 WO 2017085860A1 JP 2015082677 W JP2015082677 W JP 2015082677W WO 2017085860 A1 WO2017085860 A1 WO 2017085860A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
stator core
inner peripheral
electric motor
end surface
Prior art date
Application number
PCT/JP2015/082677
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
俊也 山口
由晴 ▲高▼島
純基 近藤
佳樹 岡田
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201580084575.9A priority Critical patent/CN108352752B/zh
Priority to PCT/JP2015/082677 priority patent/WO2017085860A1/ja
Priority to DE112015007031.1T priority patent/DE112015007031T5/de
Priority to KR1020187013026A priority patent/KR101908266B1/ko
Priority to JP2016540721A priority patent/JP6087477B1/ja
Priority to TW105106272A priority patent/TWI595729B/zh
Publication of WO2017085860A1 publication Critical patent/WO2017085860A1/ja

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08—Insulating casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to an electric motor including a stator and a rotor disposed inside the stator.
  • Patent Document 1 discloses a structure of an electric motor that efficiently discharges heat generated in a coil to the outside.
  • the stator of the electric motor disclosed in Patent Document 1 includes an annular stator core, a plurality of coils spaced apart in the circumferential direction of the stator core, and a cylinder surrounding each coil end of the plurality of coils.
  • a heat conductive resin is used as a heat transfer member.
  • the heat generated from the coil end is transmitted in the order of the heat conductive resin, the cover, and the housing, or is transmitted in the order of the heat conductive resin, the cover, the stator core, and the housing.
  • the heat transmitted to the housing is exhausted to the outside.
  • the cover moves in the axial direction due to a difference in linear expansion coefficient between the heat conductive resin and the cover during operation of the electric motor.
  • Patent Document 1 no measures are taken to prevent such movement of the cover. Therefore, when the cover moves in the axial direction, the contact area between the thermally conductive resin and the cover is reduced, and the cover and the stator core are removed. A gap is also formed between the end surfaces of the two. Accordingly, the amount of heat transferred from the heat conductive resin to the cover is reduced, and the amount of heat transferred from the cover to the stator core is also reduced. For this reason, there is a problem that the heat dissipation performance is lowered.
  • the present invention has been made in view of the above, and an object thereof is to obtain an electric motor capable of suppressing a decrease in heat dissipation performance.
  • an electric motor of the present invention includes an annular stator core and a plurality of coils arranged in the circumferential direction of the stator core.
  • the electric motor of the present invention is arranged on an end surface in the axial direction of the stator core, and has a cylindrical cover surrounding the coil ends of the plurality of coils protruding from the end surface in the axial direction of the stator core, A heat conductive resin portion disposed between each of the coil ends of the coil and the cover;
  • the cover of the electric motor of the present invention is provided on the first end face side facing the stator core, and has a first inner peripheral portion having a first inner diameter.
  • the cover of the electric motor of the present invention is provided on the second end surface side opposite to the first end surface, the second inner peripheral portion having a second inner diameter larger than the first inner diameter, and the first A step portion provided at a boundary portion between the inner peripheral portion and the second inner peripheral portion.
  • the electric motor according to the present invention has an effect of suppressing a decrease in heat dissipation performance.
  • the longitudinal cross-sectional view of the electric motor which concerns on Embodiment 1 of this invention 1 is a longitudinal sectional view of a stator of an electric motor according to Embodiment 1 of the present invention.
  • FIG. 6 is a perspective view of the cover shown in FIG. Sectional drawing of the stator of the electric motor which concerns on Embodiment 2 of this invention
  • FIG. 1 is a longitudinal sectional view of an electric motor according to Embodiment 1 of the present invention.
  • FIG. 2 is a longitudinal sectional view of the stator of the electric motor according to Embodiment 1 of the present invention.
  • 3 is a cross-sectional view taken along arrow III-III shown in FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 5 is a cross-sectional view taken along line VV shown in FIG. 2 and 3, illustration of the rotor 200 shown in FIG. 1 is omitted.
  • 6 is an enlarged view of one end side of the stator shown in FIG.
  • FIG. 7 is a perspective view of the cover shown in FIG.
  • the electric motor 300 includes a stator 100, a rotor 200 that is disposed inside the stator core 1 that constitutes the stator 100, and a cylindrical housing 10 that is disposed on the radially outer side of the stator core 1. .
  • the stator core 1 is formed by laminating a plurality of annular thin plates punched from electromagnetic steel sheets.
  • the stator core 1 has a hollow hole 11 therein.
  • the stator core 1 has a plurality of slots 12 in the circumferential direction.
  • a coil 2 is disposed in each of the plurality of slots 12.
  • a mold resin portion 4 that is a thermally conductive resin portion is provided between the coil 2 disposed in each of the plurality of slots 12 and the inner peripheral surface of each of the plurality of slots 12.
  • the material of the mold resin portion 4 is an epoxy resin or an unsaturated polyester resin.
  • the mold resin portion 4 is obtained by curing these materials filled in the plurality of slots 12.
  • the coil ends 2 a on one end side of each of the plurality of coils 2 protrude in the axial direction from one end face 1 a of the stator core 1.
  • the axial direction indicates the direction in which the rotation center axis C extends.
  • a cylindrical cover 3a surrounding a plurality of coil ends 2a is disposed on one end face 1a of the stator core 1.
  • the cover 3 a is made of a material having a linear expansion coefficient smaller than that of the mold resin portion 4.
  • the material of the cover 3a is aluminum alloy, austenitic stainless alloy, copper alloy, cast iron, steel, or iron alloy.
  • A6063 used for extrusion applications or A5056 used for bars is used as the material of the cover 3a.
  • SUS303 or SUS304 is used as the material of the cover 3a.
  • chrome copper or beryllium copper is used as the material of the cover 3a.
  • gray cast iron typified by FC200 or spheroidal graphite cast iron typified by FCD400 is used as the material of the cover 3a.
  • carbon steel represented by SC450 or carbon steel pipe for machine structure represented by STKM is used as the material of the cover 3a.
  • chrome molybdenum steel represented by SCM is used as the material of the cover 3a.
  • the cover 3 a is attached to one end surface 1 a of the stator core 1.
  • Embodiment 1 a depression is formed in advance on one end face 1a of the stator core 1, and a protrusion is formed on the end face of the cover 3a. Then, the cover 3 a is attached by fitting the protrusion of the cover 3 a into the recess of the stator core 1. The cover 3 a attached to the one end surface 1 a of the stator core 1 is processed so that the outer diameter thereof is equal to the outer diameter of the stator core 1.
  • a mold resin portion 4a which is a heat conductive resin portion covering each of the plurality of coil ends 2a, is formed.
  • the material of the mold resin portion 4a is an unsaturated polyester resin.
  • the mold resin portion 4a is obtained by curing an unsaturated polyester resin filled between the coil end 2a and the cover 3a.
  • the mold resin portion 4a is formed between the outer side in the radial direction of the coil end 2a and the cover 3a.
  • the mold resin portion 4a is formed on the inner side in the radial direction of the coil end 2a. Further, the mold resin portion 4a is formed on the tip end side in the axial direction of the coil end 2a.
  • the mold resin portion 4a is in close contact with the entire outer peripheral surface of each of the plurality of coil ends 2a, and in close contact with the entire inner peripheral surface of the cover 3a.
  • the surface on the stator core 1 side of the mold resin portion 4 a is in contact with one end surface 1 a of the stator core 1.
  • each of the plurality of coils 2 protrudes from the other end surface 1b of the stator core 1 in the axial direction.
  • a cylindrical cover 3b surrounding the plurality of coil ends 2b is disposed on the other end surface 1b of the stator core 1.
  • a cover 3b made of the same material as the cover 3a is attached to the other end surface 1b of the stator core 1.
  • Embodiment 1 a depression is formed in advance on the other end surface 1b of the stator core 1, and a protrusion is formed on the end surface of the cover 3b. Then, the cover 3 b is attached by fitting the protrusion of the cover 3 b into the recess of the stator core 1. The cover 3 b attached to the other end surface 1 b of the stator core 1 is processed so that the outer diameter thereof is equal to the outer diameter of the stator core 1.
  • a mold resin portion 4b which is a heat conductive resin portion covering each of the plurality of coil ends 2b, is formed.
  • the material of the mold resin portion 4b is an unsaturated polyester resin.
  • the mold resin portion 4b is obtained by curing these unsaturated polyester resins filled between the coil end 2b and the cover 3b.
  • the mold resin portion 4b is formed between the radially outer side of the coil end 2b and the cover 3b.
  • the mold resin portion 4b is formed on the radially inner side of the coil end 2b.
  • the mold resin portion 4b is formed on the tip end side in the axial direction of the coil end 2b.
  • the mold resin portion 4b is in close contact with the entire outer peripheral surface of each of the plurality of coil ends 2b, and in close contact with the entire inner peripheral surface of the cover 3b.
  • the surface on the stator core 1 side of the mold resin portion 4 b is in contact with the other end surface 1 b of the stator core 1.
  • the coil 2 is insulated and connected to the lead wire 20. Electric power is supplied to the coil 2 via the lead wire 20.
  • the rotor 200 includes a rotor core 5 formed by laminating a plurality of annular thin plates punched from electromagnetic steel sheets, and an aluminum conductor 6 disposed annularly in the slot of the rotor core 5 and in the front end side in the axial direction. Prepare.
  • the rotor 200 is disposed in the hollow hole 11 of the stator core 1 coaxially with the axis of the stator core 1.
  • the cylindrical housing 10 is arranged on the outer side in the radial direction of each of the two covers 3 a and 3 b, and is arranged on the outer side in the radial direction of the stator core 1.
  • the inner diameter of the housing 10 is equal to the outer diameter of the stator core 1.
  • the outer diameters of the covers 3 a and 3 b are equal to the inner diameter of the housing 10.
  • the stator core 1 is disposed inside the housing 10 by shrink fitting or cold fitting.
  • the cover 3 a is provided on the first end surface 3 a 1 side facing the stator core 1, and the first inner peripheral portion 3 a 3 having the first inner diameter and the opposite side of the first end surface 3 a 1. And a second inner peripheral portion 3a4 having a second inner diameter larger than the first inner diameter, which is provided on the second end face 3a2 side.
  • the cover 3a has a step portion 3a5 provided at a boundary portion between the first inner peripheral portion 3a3 and the second inner peripheral portion 3a4.
  • the surface of the stepped portion 3a5 has a planar shape parallel to the one end surface 1a of the stator core 1.
  • the cover 3b shown in FIG. 1 is configured in the same manner as the cover 3a.
  • Heat generated in the coil end 2a during operation of the electric motor 300 is transmitted to the mold resin portion 4a, and heat transmitted to the mold resin portion 4a is transmitted to the cover 3a.
  • a part of the heat transferred to the cover 3a is transferred to the stator core 1 via the contact surface between the cover 3a and the stator core 1.
  • the heat transmitted to the stator core 1 is transmitted from the outer peripheral surface of the stator core 1 to the housing 10 and is released from the surface of the housing 10.
  • both the cover 3a and the mold resin portion 4a expand due to heat generated in the coil end 2a.
  • cover 3a and the mold resin portion 4a have different linear expansion coefficients, a difference in thermal expansion occurs between the cover 3a and the mold resin portion 4a. Since the mold resin portion 4a expands more than the cover 3a, a force that moves to the side opposite to the stator core 1 side acts on the cover 3a that is in close contact with the mold resin portion 4a.
  • the movement of the cover 3a is limited by the step portion 3a5. That is, since the mold resin portion 4a exists at a position facing the step portion 3a5, the movement of the cover 3a in the axial direction is restricted.
  • the cover 3b shown in FIGS. 1 and 2 may be configured similarly to the cover 3a. Thereby, the movement of the cover 3b in the axial direction is restricted, and the quality of the stator 100 can be further improved as compared with the case where the step 3a5 is provided only in the cover 3a.
  • the stepped portion 3a5 has a planar shape parallel to the one end surface 1a of the stator core 1.
  • the surface of the stepped portion 3a5 is inclined with respect to the one end surface 1a of the stator core 1. Also good.
  • an effect that the engagement between the cover 3a and the mold resin portion 4a is ensured can be obtained as compared with the inclined plane.
  • FIG. FIG. 8 is a sectional view of the stator of the electric motor according to Embodiment 2 of the present invention.
  • 9 is a cross-sectional view taken along arrow IX-IX shown in FIG. 10 is a cross-sectional view taken along arrow XX shown in FIG. 11 is a cross-sectional view taken along arrow XI-XI shown in FIG.
  • FIG. 12 is an enlarged view of one end side of the stator shown in FIG.
  • the stator 100-1 of the second embodiment includes covers 3a-1 and 3b-1 instead of the covers 3a and 3b of the first embodiment.
  • covers 3a-1 and 3b-1 instead of the covers 3a and 3b of the first embodiment.
  • the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted, and different parts will be described here. Since the cover 3a-1 and the cover 3b-1 have the same configuration, the configuration of the cover 3a-1 will be described below, and the description of the configuration of the cover 3b-1 will be omitted.
  • the cover 3a-1 has a first inner peripheral portion 3a3, a second inner peripheral portion 3a4, and a stepped portion 3a5 like the cover 3a of the first embodiment.
  • the cover 3a-1 has a protrusion 7.
  • the protrusion 7 is disposed between the step portion 3a5 and the second inner peripheral portion 3a4, and protrudes from the second inner peripheral portion 3a4 toward the inside in the radial direction of the cover 3a-1.
  • the number of protrusions 7 may be one or plural.
  • FIG. 11 shows a configuration example of the cover 3a-1 having four protrusions 7.
  • the four protrusions 7 are arranged apart from each other in the circumferential direction of the stator core 1 and protrude from the second inner peripheral portion 3a4 toward the inner side in the radial direction of the cover 3a-1.
  • the mold resin portion 4a filled inside the cover 3a-1 can be used as the first inner peripheral portion 3a3, the second inner peripheral portion 3a4 of the cover 3a-1.
  • the step 3a5 and the protrusion 7 are in close contact.
  • the movement of the cover 3a-1 in the axial direction is limited by the mold resin portion 4a that is in close contact with the stepped portion 3a5 and the protrusion 7.
  • the protrusion 7 prevents the cover 3a-1 from rotating in the circumferential direction due to vibrations generated during the operation of the electric motor 300.
  • the cover 3b shown in FIGS. 1 and 2 may be configured similarly to the cover 3a-1 of the second embodiment. Thereby, the movement of the cover 3b in the axial direction is restricted, and the rotation of the cover 3b in the circumferential direction is prevented. Therefore, the quality of the stator 100-1 can be further improved as compared with the case where the step 3a5 and the protrusion 7 are provided only on the cover 3a-1.
  • FIG. 13 is a cross-sectional view of the stator of the electric motor according to Embodiment 3 of the present invention.
  • 14 is a cross-sectional view taken along arrow XIV-XIV shown in FIG. 15 is a cross-sectional view taken along arrow XV-XV shown in FIG. 16 is a cross-sectional view taken along arrow XVI-XVI shown in FIG.
  • FIG. 17 is an enlarged view of one end side of the stator shown in FIG.
  • the stator 100-2 of the third embodiment includes a cover 3a-2 instead of the cover 3a of the first embodiment.
  • cover 3a-2 instead of the cover 3a of the first embodiment.
  • the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted, and different parts will be described here. Since the cover 3a-2 and the cover 3b-2 have the same configuration, the configuration of the cover 3a-2 will be described below, and the description of the configuration of the cover 3b-2 will be omitted.
  • the cover 3a-2 has a first inner peripheral portion 3a3, a second inner peripheral portion 3a4, and a stepped portion 3a5 like the cover 3a of the first embodiment.
  • the cover 3a-2 has a protrusion 8.
  • the protrusion 8 is disposed on the second inner peripheral portion 3a4 and protrudes from the second inner peripheral portion 3a4 toward the inside in the radial direction of the cover 3a-2.
  • the number of the protrusions 8 may be one or plural.
  • FIG. 16 shows a configuration example of the cover 3a-2 having four protrusions 8.
  • the four protrusions 8 are arranged so as to be spaced apart from each other in the circumferential direction of the stator core 1 and protrude from the second inner peripheral portion 3a4 toward the inner side in the radial direction of the cover 3a-2.
  • the mold resin portion 4a filled inside the cover 3a-2 can be used as the first inner peripheral portion 3a3, the second inner peripheral portion 3a4 of the cover 3a-2, The step 3a5 and the protrusion 8 are in close contact.
  • the protrusion 8 prevents the cover 3a-2 from rotating in the circumferential direction due to vibrations generated during operation of the electric motor 300.
  • the mold resin portion 4a that is expanded during the operation of the electric motor 300 is not restricted in the axial movement, and the first portion of the cover 3a-2 is not limited. 2 can escape to the end face 3a2 side. Therefore, the shear stress due to the difference in thermal expansion is reduced, the crack is not generated in the mold resin portion 4a, and the quality of the electric motor 300 is improved.
  • the cover 3b shown in FIGS. 1 and 2 may be configured similarly to the cover 3a-2 of the third embodiment. Thereby, the movement of the cover 3b in the axial direction is restricted, and the rotation of the cover 3b in the circumferential direction is prevented. Accordingly, the quality of the stator 100-2 can be further improved as compared with the case where the step 3a5 and the protrusion 8 are provided only on the cover 3a-2.
  • stator cores of the first to third embodiments are not limited to those obtained by laminating a plurality of electromagnetic steel sheets.
  • the stator core may be an integral core obtained by processing a steel material into a cylindrical shape, a resin core obtained by solidifying a mixture of resin and iron powder, or a dust core obtained by pressing magnetic powder.
  • the type of the stator core is properly used depending on the purpose and application.
  • the rotor 200 of the first to third embodiments may be a rotor for an induction motor or a rotor for a synchronous motor.
  • the shape of the protrusions 7 and 8 of the second and third embodiments is not limited to the illustrated example, and protrudes from the second inner peripheral portion 3a4 toward the radially inner side of the covers 3a-1 and 3a-2. Any shape can be used.
  • the shape of the protrusions 7 and 8 may be a protrusion shape whose tip is curved.
  • the wedge width may be a wedge shape that expands or contracts from the second inner peripheral portion 3a4 toward the radially inner side of the covers 3a-1 and 3a-2.
  • the radial width of the protrusions 7 and 8 may be adjusted to a length that does not contact the coil end 2a.
  • the axial width of the protrusions 7 and 8 may be equal to the length from the step portion 3a5 to the second end surface 3a2, or may be less than the length from the step portion 3a5 to the second end surface 3a2.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • stator core 1a one end face, 1b other end face, 2 coil, 2a, 2b coil end, 3a, 3a-1, 3a-2, 3b, 3b-1, 3b-2 cover, 3a1 first end face, 3a2 2nd end face, 3a3, 1st inner circumference part, 3a4, 2nd inner circumference part, 3a5 step part, 4, 4a, 4b mold resin part, 5 rotor core, 6 aluminum conductor, 7, 8 protrusion, 10 housing 11 hollow holes, 12 slots, 20 lead wires, 100, 100-1, 100-2 stator, 200 rotor, 300 electric motor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
PCT/JP2015/082677 2015-11-20 2015-11-20 電動機 WO2017085860A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201580084575.9A CN108352752B (zh) 2015-11-20 2015-11-20 电动机
PCT/JP2015/082677 WO2017085860A1 (ja) 2015-11-20 2015-11-20 電動機
DE112015007031.1T DE112015007031T5 (de) 2015-11-20 2015-11-20 Motor
KR1020187013026A KR101908266B1 (ko) 2015-11-20 2015-11-20 전동기
JP2016540721A JP6087477B1 (ja) 2015-11-20 2015-11-20 電動機
TW105106272A TWI595729B (zh) 2015-11-20 2016-03-02 電動機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/082677 WO2017085860A1 (ja) 2015-11-20 2015-11-20 電動機

Publications (1)

Publication Number Publication Date
WO2017085860A1 true WO2017085860A1 (ja) 2017-05-26

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ID=58185967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/082677 WO2017085860A1 (ja) 2015-11-20 2015-11-20 電動機

Country Status (6)

Country Link
JP (1) JP6087477B1 (zh)
KR (1) KR101908266B1 (zh)
CN (1) CN108352752B (zh)
DE (1) DE112015007031T5 (zh)
TW (1) TWI595729B (zh)
WO (1) WO2017085860A1 (zh)

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CN109038907A (zh) * 2017-06-12 2018-12-18 发那科株式会社 电动机及其制造方法
WO2019162271A1 (de) * 2018-02-23 2019-08-29 Valeo Siemens Eautomotive Germany Gmbh Elektromotor mit vergossenem stator
JP7333887B1 (ja) * 2022-11-24 2023-08-25 三菱電機株式会社 固定子、電動機、固定子の製造方法および電動機の製造方法
JP7436266B2 (ja) 2020-04-02 2024-02-21 ファナック株式会社 固定子及び電動機

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EP3364524A1 (de) * 2017-02-21 2018-08-22 Siemens Aktiengesellschaft Stator für eine elektrische rotierende maschine
JP7477377B2 (ja) * 2020-06-17 2024-05-01 株式会社日立産機システム アキシャルギャップ型回転電機
CN111817508A (zh) * 2020-07-20 2020-10-23 惠州市速锋科技有限公司 内藏式主轴电机定子的灌胶工装及灌胶方法
EP3972098B1 (en) * 2020-09-17 2023-07-26 Valeo eAutomotive Germany GmbH Arrangement for an electric machine with improved resin filling for stator windings

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TW201720023A (zh) 2017-06-01
CN108352752A (zh) 2018-07-31
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