WO2019235071A1 - Stator de machine électrique rotative et machine électrique rotative - Google Patents

Stator de machine électrique rotative et machine électrique rotative Download PDF

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Publication number
WO2019235071A1
WO2019235071A1 PCT/JP2019/016170 JP2019016170W WO2019235071A1 WO 2019235071 A1 WO2019235071 A1 WO 2019235071A1 JP 2019016170 W JP2019016170 W JP 2019016170W WO 2019235071 A1 WO2019235071 A1 WO 2019235071A1
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WO
WIPO (PCT)
Prior art keywords
insulator
stator
iron core
teeth
electrical machine
Prior art date
Application number
PCT/JP2019/016170
Other languages
English (en)
Japanese (ja)
Inventor
本橋　昌也
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 JP2020523552A priority Critical patent/JP6910550B2/ja
Priority to CN201980016353.1A priority patent/CN112236925B/zh
Publication of WO2019235071A1 publication Critical patent/WO2019235071A1/fr

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    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Definitions

  • the present application relates to a rotating electrical machine stator and a rotating electrical machine that can prevent an increase in iron loss and improve performance.
  • an iron core having a plurality of slots in which windings are housed, an insulator disposed on both end surfaces in the axial direction of the iron core to electrically insulate between the windings and the iron core teeth, and the slots
  • the insulator is made of slot insulating paper that is electrically insulated between the winding and the inner peripheral surface of the iron core, and the insulator extends toward the slot that electrically insulates the winding from the iron core.
  • the slot is dimensioned such that both ends of the axial method are larger than the middle part so as to accommodate the insulator wall, i.e., in iron core teeth, both dimensions of the axial method are smaller than the middle part.
  • the slot insulating paper is arranged at both ends in the axial direction so as to overlap the winding side surface of the wall portion of the insulator, so that a winding space is formed inside the slot. Eliminating space of the insulator wall to lack, it has been proposed to increase the conductor cross section (e.g., see Patent Document 1).
  • the stator iron core is formed so that the circumferential width of both ends in the axial direction of the teeth is thinner than the circumferential width of the intermediate portion in order to accommodate the insulator wall portion.
  • the iron loss increases compared to the iron core having the same circumferential width at both ends in the axial direction as the circumferential width of the intermediate portion, leading to a decrease in the performance of the rotating electrical machine. This is more likely to affect the shorter the axial length of the iron core.
  • the shapes of both ends in the axial direction of the teeth and the intermediate portion are different, there is a problem in that the number of molds and processes for manufacturing the iron core is increased, and the cost of the iron core is increased.
  • the present application discloses a technique for solving the above-described problems, and an object thereof is to provide a stator of a rotating electrical machine and a rotating electrical machine that can prevent an increase in iron loss and improve performance.
  • the stator of the rotating electrical machine disclosed in the present application is At least one yoke portion is disposed in the circumferential direction, and the yoke is formed in an annular shape; and On the inner peripheral surface in the radial direction of the yoke portion, there is a teeth portion protruding inward in the radial direction,
  • the teeth part has an iron core having a shoe part formed to protrude in the circumferential direction on both sides in the circumferential direction of the radially inner tip, A first insulator portion having insulating properties respectively installed at both axial ends along the central axis of the iron core;
  • a second insulator portion having an insulating shape, A coil portion wound around the first insulator portion and the second insulator portion on the teeth portion; At both ends in the axial direction of the yoke portion, there are recesses on the outer peripheral surface on the outer side in the radial direction, The second insulator part has protrusions formed at both ends in the axial direction of the iron core so as to protrude from both ends, The first insulator portion is in contact with the protruding portion of the second insulator portion, and between the first protrusion portion inserted into the concave portion of the iron core and the radially outer side surface of each shoe portion. And a second projecting portion sandwiching the second insulator portion.
  • the rotating electrical machine disclosed in the present application is the stator of the rotating electrical machine described above, A frame in which the stator is arranged radially inside;
  • the rotor is disposed inside the stator in the radial direction and includes a rotor rotatably supported by the frame.
  • stator and the rotating electrical machine disclosed in the present application it is possible to prevent an increase in iron loss and improve the performance.
  • FIG. 3 is a top view illustrating a configuration of a stator of the rotating electrical machine according to the first embodiment. It is a perspective view which shows the structure of the split iron core of a stator shown in FIG. 1, a 1st insulator part, and a 2nd insulator part. It is a perspective view which shows the structure of the division
  • FIG. 3 is a partial enlarged perspective view showing a configuration of a split iron core and a first insulator part shown in FIG. 2. It is a top view which shows the structure of the rotary electric machine using the stator shown in FIG. It is the perspective view which showed the manufacturing method of the stator shown in FIG. It is the perspective view which showed the manufacturing method of the stator shown in FIG. 6 is a perspective view showing another configuration of the first insulator portion of the stator of the rotating electrical machine according to Embodiment 1. FIG. 6 is a perspective view showing another configuration of the first insulator portion of the stator of the rotating electrical machine according to Embodiment 1. FIG. FIG. FIG. FIG.
  • FIG. 6 is a partially enlarged perspective view showing a configuration of a split iron core, a first insulator part, and a second insulator part of a stator of a rotating electrical machine according to a second embodiment. It is a top view which shows the structure of the 1st insulator part installed in the division
  • each direction in the rotating electrical machine is indicated as a circumferential direction Z
  • a direction along the rotational axis of the rotating electrical machine is indicated as an axial direction Y
  • a radial direction X is indicated as an outer side X1 in the radial direction X
  • an inner side X2 in the radial direction X.
  • FIG. 1 is a top view showing the configuration of the stator 100 of the rotating electrical machine 1 according to the first embodiment.
  • FIG. 2 is a perspective view showing a configuration in which the first insulator portion 130 and the second insulator portion 120 are installed on the split iron core 110 of the stator 100 shown in FIG. 1.
  • FIG. 3 is a perspective view for explaining a state in which the second insulator portion 120 is installed in the split iron core 110 shown in FIG.
  • FIG. 4 is a perspective view illustrating a configuration of the first insulator unit 130 illustrated in FIG. 2.
  • FIG. 5 is a plan view showing a configuration of the first insulator unit 130 shown in FIG. 4 viewed from the direction of arrow A.
  • FIG. 6 is a partially enlarged perspective view showing a configuration on the upper side of the paper in the axial direction Y of the configuration in which the first insulator portion 130 and the second insulator portion 120 are installed on the split iron core 110 shown in FIG.
  • FIG. 7 is a partially enlarged perspective view showing a lower configuration on the paper surface in the axial direction Y of the configuration in which the first insulator portion 130 and the second insulator portion 120 are installed in the split iron core 110 shown in FIG. 2.
  • the split iron core 110 is shown in a state in which a part of the number is stacked in the axial direction Y.
  • FIG. 8 is a top view showing a configuration of the rotating electrical machine 1 using the stator 100 shown in FIG.
  • each figure other than FIG. 8 shows the state before forming the coil part 9 for convenience.
  • FIG. 9 and 10 are perspective views showing a manufacturing method in which the first insulator part 130 and the second insulator part 120 are installed on the split core 110 of the stator 100 shown in FIG. 11 and 12 are perspective views showing another configuration of the first insulator portion 130 of the stator 100 of the rotating electrical machine 1 according to the first embodiment.
  • the rotating electrical machine 1 is disposed on the stator 100 in which the coil portion 9 is formed, the frame 2 in which the stator 100 is disposed on the outer side X1 in the radial direction X, and the inner side X2 of the stator 100 in the radial direction X.
  • a rotor 4 having a rotation shaft 3 supported by the frame 2 so as to be rotatable.
  • the stator 100 of the rotating electrical machine 1 includes an iron core 10 and a coil portion 9 (see FIG. 8).
  • the iron core 10 is formed on the inner surface 11 of the yoke 5 formed in an annular shape and the inner side X2 of the yoke 5 in the radial direction X so as to protrude from the inner side X2 of the radial direction X at a predetermined interval in the circumferential direction Z.
  • the iron core 10 is formed by annularly arranging a plurality of divided iron cores 110 divided in the circumferential direction Z.
  • the iron core 10 is formed by punching out electromagnetic steel sheets and laminating a plurality of the punched electromagnetic steel sheets in the axial direction Y.
  • one divided core 110 has one tooth portion 112 and one yoke portion 111. Therefore, the yoke 5 of the iron core 10 is formed in a ring shape by arranging a plurality of yoke portions 111 of the split iron core 110 in the circumferential direction Z. At both ends of the yoke portion 111 in the axial direction Y, concave portions 117 are formed on the outer peripheral surface 12 of the outer side X1 in the radial direction X, respectively. The said recessed part 117 is formed for every division
  • the recess 117 may be formed continuously from one end to the other end in the axial direction Y of the outer peripheral surface 12 of the yoke portion 111 of the split iron core 110.
  • the recessed part 117 is not limited to the said shape, The case where it forms in the hole shape which has the function similar to the said recessed part 117 is also considered.
  • the teeth portion 112 has shoe portions 114 formed to protrude in the circumferential direction Z on both sides in the circumferential direction Z of the tip of the inner side X2 in the radial direction X. Between the divided cores 110 adjacent to each other in the circumferential direction Z, a slot 113 (see FIG. 1) for forming the coil portion 9 is formed.
  • the coil part 9 is wound around each tooth part 112 via a first insulator part 130 and a second insulator part 120, which will be described later, and housed in a slot 113.
  • the second insulator portion 120 has an insulating property and is formed in a sheet shape.
  • the second insulator portion 120 includes, in the tooth portion 112, on the side surfaces 21 at both ends in the circumferential direction Z of the tooth portion 112, on the inner peripheral surface 11 of the yoke portion 111 extending from the side surface 21, and the diameter of each shoe portion 114. It is installed on the side surface 41 of the outside X1 in the direction X.
  • the second insulator unit 120 may be in the form of a sheet, and is formed of, for example, insulating paper or an insulating film. Therefore, the second insulator portion 120 is installed in the slot 113, and insulates the divided core 110 from the coil portion 9 in the slot 113.
  • the second insulator portion 120 is formed such that the length in the axial direction Y is longer than the length in the axial direction of the divided core 110, and the protruding portions 121 that protrude from both ends are provided at both ends in the axial direction Y of the divided core 110.
  • the 1st insulator part 130 is each installed in the both ends of the axial direction Y of the split iron core 110, and has insulation.
  • the first insulator portion 130 is between the first protrusion 132 inserted into the recess 117 of the split core 110 and the side surface 41 of the outer side X ⁇ b> 1 in the radial direction X of each shoe portion 114. It has the 2nd projection part 133 on which the 2nd insulator part 120 is pinched
  • the first insulator portion 130 is formed so as to be in contact with the protruding portion 121 of the second insulator portion 120.
  • the protruding portion 121 of the second insulator portion 120 is in contact with the first insulator portion 130 and overlaps with each other, so that the portion is formed as a portion that ensures electrical insulation performance.
  • connect in the axial direction Y is the part of the protrusion part 121 of the 2nd insulator part 120, and the shape of the split iron core 110 is not influenced. Therefore, the split iron core 110 can be formed in the same shape from the upper side to the lower side in the axial direction Y as shown in the upper diagram on the paper surface of FIG.
  • the first insulator portion 130 is formed with a groove portion 131 corresponding to the sheet-like thickness of the second insulator portion 120 at a location in contact with the protruding portion 121 of the second insulator portion 120.
  • the width W1 in the circumferential direction Z on the tooth portion 112 of the first insulator portion 130 is larger than the width W2 (see FIG. 3) in the circumferential direction Z of the tooth portion 112.
  • the second insulator portion 120 is formed to be twice as large as the sheet-like thickness, that is, the width of the groove 131.
  • the said groove part 131 becomes a space in which the protrusion part 121 of the 2nd insulator part 120 is accommodated.
  • the protruding part 121 of the second insulator part 120 is accommodated in the groove part 131 of the first insulator part 130.
  • the both ends of the axial direction Y of the groove part 131 of the 1st insulator part 130 become the arrangement
  • the first protrusion 132 of the first insulator portion 130 is inserted into the concave portion 117 of the split iron core 110, so the arrangement of the first insulator portion 130 with respect to the split iron core 110 is arranged in the radial direction X. And restrained in the circumferential direction Z.
  • the second protrusion 133 of the first insulator part 130 sandwiches the second insulator part 120 between the side surface 41 of the outer side X1 of each shoe part 114 in the radial direction X, the second insulator 133 is opposed to the split iron core 110.
  • the arrangement of the part 120 is restricted in the circumferential direction Z.
  • the first protrusion 132 is inserted into the recess 117 provided in the yoke portion 111 of the split core 110, and the second protrusion 133 is fitted so as to cover both ends of the shoe portion 114. Thereby, positioning of the 1st insulator part 130 with respect to the split iron core 110 is performed.
  • FIGS. 9 and 10 A manufacturing method in which the first insulator portion 130 and the second insulator portion 120 are installed on the split core 110 of the stator 100 of the rotating electrical machine 1 according to the first embodiment configured as described above will be described with reference to FIGS. 9 and 10.
  • jigs 125 that suck or grip the second insulator portion 120 are installed on both sides in the circumferential direction Z of the split iron core 110 (state on the left side in FIG. 9).
  • tool 125 is pushed so that it may approach in the circumferential direction Z of the division
  • the bent portions of the second insulator portion 120 are connected to the side surfaces 41 on both ends in the circumferential direction Z of the teeth portion 112 from the side surfaces 41 on the outer side X1 in the radial direction X of the shoe portion 114 as shown in the lower view on the paper surface of FIG. 21 and a second curved portion 128 extending from the side surface 21 at both ends in the circumferential direction Z of the tooth portion 112 to the inner peripheral surface 11 of the yoke portion 111 extending to the side surface 21.
  • the bending angle of the first bent portion 127 and the second bent portion 128 is set to be the same angle along each surface of the divided core 110 described above when the second insulator portion 120 is attached to the divided core 110. Is done.
  • the teeth part 112, the yoke part 111, and the shoe part 114 of the split core 110 of the jig 125 are provided.
  • the portion along the core is formed at a (large) angle that is 1 to 2 degrees open with respect to the angle formed by the teeth 112 and the yoke 111 and the teeth 112 and the shoes 114 of the split core 110.
  • the second protrusion 133 of the first insulator 130 is inserted into the notch 126 of the jig 125 from the axial direction Y, and the second insulator 120 is sandwiched and pressed.
  • the jig 125 of the second insulator part 120 is opened, and the installation of the second insulator part 120 and the first insulator part 130 on the split iron core 110 is completed.
  • the coil portion 9 is formed by winding a conductive wire around the tooth portion 112.
  • the stator 100 is formed by assembling a plurality of split iron cores 110 on which the coil portions 9 are formed in an annular shape. And the rotor 4 and the stator 100 are installed in the flame
  • a first tapered portion 136 that narrows in the direction away from the first insulator portion 130 side may be formed on the first protrusion 132 of the first insulator portion 130. If formed in this way, the insertion property of the first protrusion 132 into the recess 117 of the yoke 111 is improved.
  • a second taper portion 138 that narrows in a direction away from the first insulator portion 130 side may be formed on the second protrusion 133 of the first insulator portion 130. If formed in this way, the interference between the second insulator part 120 and the second projection part 133 due to the warp or turning of the second insulator part 120 is suppressed, and the insertability is improved.
  • the shape of the split core is changed so that the circumferential width at both ends in the axial direction is changed to the intermediate circumferential width in the axial direction. It is not necessary to make it thinner. Therefore, according to this Embodiment 1, the volume of a division
  • the shape of the split iron core can be formed in the same shape in the axial direction, so that the mold cost and the manufacturing cost are reduced. Can be prevented.
  • the portion corresponding to the first insulator portion is not formed extending in the slot in the axial direction. Therefore, according to the first embodiment, the space in the slot can be reliably ensured. The fall of the space factor of a coil part can be prevented.
  • At least one yoke portion is disposed in the circumferential direction, and the yoke is formed in an annular shape; and On the inner peripheral surface in the radial direction of the yoke portion, there is a teeth portion protruding inward in the radial direction,
  • the teeth part has an iron core having a shoe part formed to protrude in the circumferential direction on both sides in the circumferential direction of the radially inner tip, A first insulator portion having insulating properties respectively installed at both axial ends along the central axis of the iron core;
  • a second insulator portion having an insulating shape, A coil portion wound around the first insulator portion and the second insulator portion on the teeth portion; At both ends in the axial direction of the yoke portion, there are recesses on the outer peripheral surface on the outer side in the radial direction, The second insulator part has protrusions formed at both ends in the axial direction of the iron core so as to protrude from both ends, The first insulator portion is in contact with the protruding portion of the second insulator portion, and between the first protrusion portion inserted into the concave portion of the iron core and the radially outer side surface of each shoe portion. In this case, since the second protrusion portion sandwiches the second insulator portion, an increase in iron loss can be prevented and a stator with improved performance can be obtained.
  • the iron core in the slot of the iron core, it is possible to configure without the intrusion of the wall surface of the first insulator part which reduces the space for housing the coil part. Therefore, the iron core can be formed in the same size from the upper side to the lower side in the axial direction. As a result, there is no decrease in the volume of the iron core, an increase in iron loss can be prevented, and the performance of the rotating electrical machine can be improved. This is particularly effective for models in which the axial length of the iron core is short. Moreover, since the resin material used for the wall surface which penetrates into the slot of the 1st insulator part becomes unnecessary, it is effective also in reduction of material cost.
  • the first protrusion of the first insulator portion is formed with a first taper portion that becomes narrower in a direction away from the first insulator portion side, A stator having improved insertability, excellent position accuracy and assembly accuracy, and excellent workability can be obtained.
  • the second protrusion portion of the first insulator portion is formed with a second taper portion that narrows in a direction away from the first insulator portion side, the second insulator portion and the second protrusion portion Interference is suppressed, warping or turning of the second insulator portion is prevented, and a stator that improves insertability and excellent workability can be obtained.
  • the first insulator portion is formed with a groove portion having a sheet-like thickness of the second insulator portion at a position in contact with the protruding portion of the second insulator portion, the axial direction of the second insulator portion A stator that can prevent the displacement is obtained.
  • the iron core is formed of a split iron core that is divided into a plurality in the circumferential direction, Each of the divided iron cores is formed with the recess, Since the first protrusions to be inserted into the recesses are formed in the first insulator portion, a stator that can hold the first insulator portion for each divided iron core can be obtained.
  • stator of the rotating electrical machine described above A frame in which the stator is arranged radially inside; Since the rotor is disposed on the inner side in the radial direction of the stator and is rotatably supported by the frame, a stator with excellent performance can be obtained, and thus a rotating electrical machine with excellent performance can be obtained. Can be obtained.
  • FIG. FIG. 13 is a partially enlarged perspective view showing a configuration on the upper side in the axial direction Y of the configuration in which the first insulator portion 130 and the second insulator portion 120 are installed in the split core 110 of the stator 100 of the rotating electrical machine 1 according to the second embodiment. It is.
  • FIG. 14 is a plan view showing the configuration of the first insulator portion 130 installed in the split iron core 110 shown in FIG. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the groove portion 131 is formed in the first insulator portion 130 that accommodates the protruding portion 121 of the second insulator portion 120 .
  • the width W3 (see FIG. 14) in the circumferential direction Z on the tooth portion 112 of the first insulator portion 130 is formed to have the same width as the width W2 (see FIG. 3) in the circumferential direction Z of the tooth portion 112.
  • a groove 131 for sandwiching the second insulator 120 is formed on the inner side X2 of the second protrusion 133 in the radial direction X.
  • the second insulator portion 120, the first insulator portion 130, and the split iron core 110 are fixed by an adhesive, a double-sided tape or the like. Since other shapes and manufacturing methods are the same as those of the first embodiment, description thereof is omitted.
  • the first insulator portion is on the teeth portion as well as the same effect as the first embodiment. Since the circumferential width is the same as the circumferential width of the teeth portion, no groove is formed in the first insulator portion, so the shape of the first insulator portion can be simplified and the mold cost can be reduced. Can be reduced.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Selon l'invention, un stator de machine électrique rotative comprend : un noyau en fer (10) comportant une partie étrier (111) ayant une partie en creux (117) sur sa surface circonférentielle extérieure (12) et une pluralité de parties dents (112) ayant une partie sabot (114) ; et une partie bobine (11) enroulée autour de chacune des parties dents (112) avec une première partie isolant (130) et une deuxième partie isolant (120) interposées entre celles-ci. La deuxième partie isolant (120) est disposée dans une fente (113) entre les parties dents (112), est formée pour être en forme de feuille et avoir des propriétés d'isolation électrique, et comporte une partie en saillie (121) dépassant des deux extrémités du noyau en fer (10) dans la direction d'arbre (Y). La première partie isolant (130) comporte : une première partie en saillie (132) installée aux deux extrémités du noyau en fer (10) dans la direction d'arbre (Y), ayant des propriétés d'isolation électrique, établissant un contact avec la partie en saillie (121), et insérée dans la partie en creux (117) ; et une deuxième partie en saillie (133) permettant de prendre en sandwich la deuxième partie isolant (120) entre la surface latérale (41) de la partie sabot (114) sur l'extérieur (X1) dans la direction radiale (X) et la deuxième partie en saillie (133).
PCT/JP2019/016170 2018-06-04 2019-04-15 Stator de machine électrique rotative et machine électrique rotative WO2019235071A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020523552A JP6910550B2 (ja) 2018-06-04 2019-04-15 回転電機の固定子および回転電機
CN201980016353.1A CN112236925B (zh) 2018-06-04 2019-04-15 旋转电机的定子以及旋转电机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-106636 2018-06-04
JP2018106636 2018-06-04

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WO2019235071A1 true WO2019235071A1 (fr) 2019-12-12

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CN (1) CN112236925B (fr)
WO (1) WO2019235071A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4084302A4 (fr) * 2020-03-30 2023-12-27 Daikin Industries, Ltd. Stator et moteur comprenant ledit stator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0274137A (ja) * 1988-09-08 1990-03-14 Matsushita Electric Ind Co Ltd 界磁組立体
JP2006180674A (ja) * 2004-12-24 2006-07-06 Fujitsu General Ltd 電動機
JP2013138585A (ja) * 2011-12-28 2013-07-11 Fujitsu General Ltd 電動機
JP2016082839A (ja) * 2014-10-22 2016-05-16 株式会社一宮電機 ブラシレスモータ
WO2016208555A1 (fr) * 2015-06-25 2016-12-29 三菱電機株式会社 Stator de moteur électrique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4449121B2 (ja) * 1999-10-08 2010-04-14 パナソニック株式会社 電動機およびその応用機器
CN107251374B (zh) * 2015-02-18 2020-05-19 三菱电机株式会社 旋转电机的定子及旋转电机的定子的制造方法
JP6103559B1 (ja) * 2015-11-30 2017-03-29 三菱電機株式会社 回転電機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0274137A (ja) * 1988-09-08 1990-03-14 Matsushita Electric Ind Co Ltd 界磁組立体
JP2006180674A (ja) * 2004-12-24 2006-07-06 Fujitsu General Ltd 電動機
JP2013138585A (ja) * 2011-12-28 2013-07-11 Fujitsu General Ltd 電動機
JP2016082839A (ja) * 2014-10-22 2016-05-16 株式会社一宮電機 ブラシレスモータ
WO2016208555A1 (fr) * 2015-06-25 2016-12-29 三菱電機株式会社 Stator de moteur électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4084302A4 (fr) * 2020-03-30 2023-12-27 Daikin Industries, Ltd. Stator et moteur comprenant ledit stator

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CN112236925B (zh) 2024-04-26
JPWO2019235071A1 (ja) 2020-12-17
JP6910550B2 (ja) 2021-07-28
CN112236925A (zh) 2021-01-15

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