JP2021097523A - Rotary electric machine - Google Patents

Rotary electric machine Download PDF

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Publication number
JP2021097523A
JP2021097523A JP2019227965A JP2019227965A JP2021097523A JP 2021097523 A JP2021097523 A JP 2021097523A JP 2019227965 A JP2019227965 A JP 2019227965A JP 2019227965 A JP2019227965 A JP 2019227965A JP 2021097523 A JP2021097523 A JP 2021097523A
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Japan
Prior art keywords
stator
electric machine
coil
rotary electric
conductor
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JP2019227965A
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Japanese (ja)
Inventor
宏紀 立木
Hiroki Tachiki
宏紀 立木
辰郎 日野
Tatsuo Hino
辰郎 日野
康平 江頭
Kohei Egashira
康平 江頭
長谷川　和哉
Kazuya Hasegawa
和哉 長谷川
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2019227965A priority Critical patent/JP2021097523A/en
Priority to CN202011407927.9A priority patent/CN112994282A/en
Publication of JP2021097523A publication Critical patent/JP2021097523A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

To provide a rotary electric machine capable of improving the cooling performance thereof.SOLUTION: In a disclosed rotary electric machine, a stator winding is formed by combining multiple single-coil units each of which comprising a slot insertion part to be inserted into a slot of a stator core and a coil end that electrically connects each of the slot insertion parts. A concavity is formed in the conductors on the top of the coil end.SELECTED DRAWING: Figure 3

Description

本願は、回転電機、特にその固定子に関するものである。 The present application relates to a rotary electric machine, particularly a stator thereof.

近年、電動機、発電機などの回転電機においては、小型高出力化が求められている。この種の回転電機を小型化するため、有効な磁束を発生しないコイルエンドを小型化することが望ましく、このような観点から、導体線を固定子鉄心のティースのそれぞれに巻回した集中巻の固定子巻線が用いられている。
一方で、トルク脈動が抑えられ、高出力化が可能な分布巻構造の固定子巻線を用いた固定子が要望されている。この固定子巻線は、導体線を２スロット以上離れたスロットに巻回して構成された巻線を分布巻の巻線とする。つまり、分布巻の巻線は、１のスロットから延出した導体線が連続する２つ以上のティースをまたいで他のスロットに入るようにして構成されている。 In recent years, rotating electric machines such as electric motors and generators are required to be compact and have high output. In order to miniaturize this type of rotary electric machine, it is desirable to miniaturize the coil end that does not generate effective magnetic flux. From this point of view, the conductor wire is wound around each of the teeth of the stator core. Stator windings are used.
On the other hand, there is a demand for a stator using a stator winding having a distributed winding structure in which torque pulsation is suppressed and output can be increased. In this stator winding, a winding formed by winding a conductor wire in slots separated by two or more slots is used as a distributed winding winding. That is, the winding of the distributed winding is configured such that the conductor wire extending from one slot straddles two or more consecutive teeth and enters another slot.

このような状況に鑑み、従来の回転電機では、矩形の導体線を複数回巻き回してコイル状に形成された巻線コイル、いわゆる亀甲形コイルを所定スロット数離れたスロットの各対に収納して、分布巻の固定子巻線を形成していた（例えば、特許文献１、特許文献２参照）。 In view of such a situation, in the conventional rotary electric machine, a winding coil formed in a coil shape by winding a rectangular conductor wire a plurality of times, a so-called turtle-shaped coil, is housed in each pair of slots separated by a predetermined number of slots. Therefore, a stator winding of a distributed winding was formed (see, for example, Patent Document 1 and Patent Document 2).

特開２００８−１０４２９３号公報Japanese Unexamined Patent Publication No. 2008-104293 特開２０１４−８２８２０号公報Japanese Unexamined Patent Publication No. 2014-82820

しかしながら、従来の回転電機の固定子では、次のような課題を有している。
すなわち、固定子巻線を形成する亀甲形コイルは、そのコイルエンドの束を頭頂部で曲げてクランク形状に成形しているため、それぞれの亀甲形コイルの径方向に隣り合うコイルエンドの頭頂部は互いに接し、あるいは極めて近接することになる。したがって、径方向に隙間無く並んだコイルエンドの頭頂部の列が周方向に配列され、流路方向を径方向とする冷媒流路が頭頂部の列間に形成されることになるが、コイルエンド頭頂部の列は、周方向に１スロットピッチで配列されるため、流路幅が狭くなり、放熱面積が少なく、巻線の冷却性能が十分に得られないという課題があった。 However, the stator of a conventional rotary electric machine has the following problems.
That is, since the hexagonal coil forming the stator winding is formed into a crank shape by bending the bundle of the coil ends at the crown, the crowns of the coil ends adjacent to each other in the radial direction of each hexagonal coil are formed. Will be in contact with each other or very close to each other. Therefore, the rows of the crowns of the coil ends arranged without gaps in the radial direction are arranged in the circumferential direction, and the refrigerant flow paths having the flow direction in the radial direction are formed between the rows of the crowns. Since the rows at the top of the end are arranged at a pitch of 1 slot in the circumferential direction, there is a problem that the flow path width is narrow, the heat dissipation area is small, and the cooling performance of the winding cannot be sufficiently obtained.

本願に開示される回転電機は、複数のスロットが周方向に配列された円環状の固定子鉄心および絶縁被覆された導電体を用いて形成され、上記固定子鉄心に装着された固定子巻線を有する固定子と、前記固定子に対向して回転可能に支持された回転子とを備えた回転電機であって、前記固定子巻線は、前記固定子鉄心のスロットに挿通されるスロット挿通部とそれぞれのスロット挿通部を電気的に接続するコイルエンド部とからなるコイル単体を複数組み合わせて形成されるとともに、前記コイルエンド部の頂部における前記導電体を凹ませた凹部を設けたことを特徴とするものである。 The rotary electric machine disclosed in the present application is formed by using an annular stator core in which a plurality of slots are arranged in the circumferential direction and an insulating coated conductor, and is mounted on the stator core. It is a rotary electric machine including a stator having a stator and a rotor rotatably supported facing the stator, and the stator winding is a slot insertion inserted into a slot of the stator core. It is formed by combining a plurality of coil units consisting of a portion and a coil end portion that electrically connects each slot insertion portion, and a recess in which the conductor is recessed is provided at the top of the coil end portion. It is a feature.

本願に開示される回転電機によれば、固定子巻線を構成するコイル単体におけるコイルエンド部の頂部の表面積を増大することによって、強制対流、自然対流、および輻射によって周囲環境に放出する熱を増加させることができ、回転電機を効率よく冷却することができる。 According to the rotary electric machine disclosed in the present application, the heat released to the surrounding environment by forced convection, natural convection, and radiation is increased by increasing the surface area of the top of the coil end portion in the coil alone constituting the stator winding. It can be increased and the rotary electric machine can be cooled efficiently.

実施の形態１に関わる回転電機の基本的な構成を示す断面図である。It is sectional drawing which shows the basic structure of the rotary electric machine which concerns on Embodiment 1. FIG. 実施の形態１に関わる回転電機の固定子を示す斜視図である。It is a perspective view which shows the stator of the rotary electric machine which concerns on Embodiment 1. FIG. 実施の形態１に関わる回転電機の固定子コイルを示す平面図および要部拡大図である。It is a top view and the enlarged view of the main part which show the stator coil of the rotary electric machine which concerns on Embodiment 1. FIG. 実施の形態１に関わる回転電機の固定子コイルの他の例を示す平面図である。It is a top view which shows the other example of the stator coil of the rotary electric machine which concerns on Embodiment 1. FIG. 実施の形態２に関わる回転電機の固定子コイルの要部を示す平面図である。It is a top view which shows the main part of the stator coil of the rotary electric machine which concerns on Embodiment 2. FIG. 実施の形態３に関わる回転電機の固定子コイルを示す平面図および要部拡大図である。It is a top view and the enlarged view of the main part which show the stator coil of the rotary electric machine which concerns on Embodiment 3. FIG. 実施の形態３に関わる回転電機の固定子を示す要部断面図である。It is sectional drawing of the main part which shows the stator of the rotary electric machine which concerns on Embodiment 3. FIG.

実施の形態１．
以下、本願における実施の形態について図面を用いて説明する。なお、各図において、同一または相当する部分については、同一符号を付して説明する。
図１は、実施の形態１に関わる回転電機の基本的な構成を示す断面図で、図において、回転電機１００は、有底円筒状のハウジング１と、ハウジング１の開口部を塞口するブラケット２と、ハウジング１に焼き嵌めもしくは圧入などの固定手段によって固定された固定子３と、ハウジング１の底部およびブラケット２にベアリング４を介して回転可能に支持された回転軸５と、回転軸５に固着されて固定子３の内周側に回転可能に配設された回転子６を備えている。 Embodiment 1.
Hereinafter, embodiments of the present application will be described with reference to the drawings. In each figure, the same or corresponding parts will be described with the same reference numerals.
FIG. 1 is a cross-sectional view showing a basic configuration of a rotary electric machine according to the first embodiment. In the figure, the rotary electric machine 100 has a bottomed cylindrical housing 1 and a bracket that closes an opening of the housing 1. 2, a stator 3 fixed to the housing 1 by a fixing means such as shrink fitting or press fitting, a rotating shaft 5 rotatably supported on the bottom of the housing 1 and a bracket 2 via a bearing 4, and a rotating shaft 5. A rotor 6 fixed to the stator 3 and rotatably arranged on the inner peripheral side of the stator 3 is provided.

ここで、回転子６は、軸心位置に挿通された回転軸５に固着された回転子鉄心６１と、回転子鉄心６１の外周面側に埋設されて周方向に予め定められたピッチで配列され、磁極を構成する永久磁石６２と、軸方向両端に設けられた回転子ファン６３とを備えた永久磁石型回転子を示しているが、絶縁しない回転子導体を回転子鉄心のスロットに収納して両側を短絡環で短絡したかご形回転子、または絶縁した導体線を回転子鉄心のスロットに装着した巻線形回転子を用いてもよい。なお、軸方向両端に設けられた回転子ファン６３は、回転子６の回転に伴い、ハウジング１およびブラケット２からなる筐体内の気体を撹拌し、固定子３に向けて径方向に気体を流すものである。 Here, the rotors 6 are arranged with the rotor core 61 fixed to the rotation shaft 5 inserted at the axial center position and the rotor core 61 embedded in the outer peripheral surface side of the rotor core 61 at a predetermined pitch in the circumferential direction. A permanent magnet type rotor including a permanent magnet 62 forming a magnetic pole and rotor fans 63 provided at both ends in the axial direction is shown, but a rotor conductor that is not insulated is stored in a rotor core slot. A cage rotor whose both sides are short-circuited with a short-circuit ring, or a wound rotor in which an insulated conductor wire is mounted in the slot of the rotor core may be used. The rotor fans 63 provided at both ends in the axial direction agitate the gas in the housing including the housing 1 and the bracket 2 as the rotor 6 rotates, and the gas flows in the radial direction toward the stator 3. It is a thing.

次に、固定子３の構成について図２から図４を参照して具体的に説明する。なお、以下の説明においては、回転軸５の長さ方向（図１における上下方向）を軸方向、回転軸５に直交する方向（図１における左右方向）を径方向、回転軸５を中心として回転する方向を周方向と定義する。
固定子３は、図２に示すように、固定子鉄心３１と、固定子鉄心３１に装着された固定子巻線３２とを備え、固定子巻線３２を構成する複数の分割型固定子コイル３３を固定子鉄心３１に周期的に設けられた複数のスロットに挿入して形成されている。 Next, the configuration of the stator 3 will be specifically described with reference to FIGS. 2 to 4. In the following description, the length direction of the rotation axis 5 (vertical direction in FIG. 1) is the axial direction, the direction orthogonal to the rotation axis 5 (horizontal direction in FIG. 1) is the radial direction, and the rotation axis 5 is the center. The direction of rotation is defined as the circumferential direction.
As shown in FIG. 2, the stator 3 includes a stator core 31 and a stator winding 32 mounted on the stator core 31, and a plurality of split type stator coils constituting the stator winding 32. 33 is formed by inserting the 33 into a plurality of slots periodically provided in the stator core 31.

図３（Ａ）、（Ｂ）は、それぞれ分割型の固定子コイル３３単体を示す平面図および要部拡大図で、固定子コイル３３単体は、絶縁被覆された断面が矩形の導電体を用いて亀甲形状に巻き回し、固定子鉄心３１のスロットに挿通されるスロット挿通部３３ａとスロット挿通部３３ａの両端にスロット挿通部３３ａを電気的に接続するコイルエンド部３３ｂとを形成して構成されている。
また、コイルエンド部３３ｂにおける回転電機の軸方向両端の頂部には、断面矩形の導電体の表面を凹ませた円弧状の凹部３３ｃが設けられている。なお、図３（Ｂ）において、元々の導電体の稜線を点線で示している。
この凹部３３ｃは、固定子コイル３３を巻く前の導電体の相当する位置に予め形成しておいても良く、固定子コイル３３を形成した後に頂部を機械加工することにより形成してもよい。あるいは、固定子３を形成した状態で、軸方向からプレス成型によって形成してもよい。
また、プレスの成型圧を下げるために、図４に示すようにコイルエンド部３３ｂの頂部の一部に曲率が変化する円弧状の凹部３３ｃを形成してもよい。 3 (A) and 3 (B) are a plan view and an enlarged view of a main part of the stator coil 33 of the split type, respectively. The stator coil 33 of the stator coil 33 uses a conductor having a rectangular cross section and is insulated and coated. A coil end portion 33b for electrically connecting the slot insertion portion 33a is formed at both ends of the slot insertion portion 33a and the slot insertion portion 33a which are wound into a tortoise shell shape and inserted into the slot of the stator core 31. ing.
Further, at the tops of both ends of the rotary electric machine in the axial direction of the coil end portion 33b, arc-shaped recesses 33c having a concave surface of a conductor having a rectangular cross section are provided. In FIG. 3B, the ridgeline of the original conductor is shown by a dotted line.
The recess 33c may be formed in advance at a position corresponding to the conductor before winding the stator coil 33, or may be formed by machining the top after forming the stator coil 33. Alternatively, the stator 3 may be formed by press molding from the axial direction in the state of being formed.
Further, in order to reduce the molding pressure of the press, as shown in FIG. 4, an arcuate concave portion 33c whose curvature changes may be formed in a part of the top of the coil end portion 33b.

このようにコイルエンド部３３ｂの頂部に凹部３３ｃを形成することによって、固定子コイル３３におけるコイルエンド部３３ｂの頂部の表面積を増大することができ、この結果、強制対流、自然対流、及び輻射によって周囲環境に放出する熱を増加させることが可能となり、回転電機を効率よく冷却することができる。
また、凹部３３ｃの凹みによって乱流を発生させることができ、更なる冷却効果も期待することができる。
特に、実施の形態１のように両端に頂部を持つ亀甲形状の固定子コイルの場合、回転電機の両端に凹部３３ｃが位置することになるため、よりよい冷却効果を得ることができる。 By forming the recess 33c at the top of the coil end 33b in this way, the surface area of the top of the coil end 33b in the stator coil 33 can be increased, resulting in forced convection, natural convection, and radiation. It is possible to increase the heat released to the surrounding environment, and it is possible to efficiently cool the rotating electric machine.
Further, a turbulent flow can be generated by the recess of the recess 33c, and a further cooling effect can be expected.
In particular, in the case of a hexagonal stator coil having tops at both ends as in the first embodiment, recesses 33c are located at both ends of the rotary electric machine, so that a better cooling effect can be obtained.

実施の形態２．
図５は、実施の形態２に関わる回転電機の固定子コイル３３の要部を示す平面図である。
上述の実施の形態１においては、固定子コイル３３を断面が矩形の導電体を用いた場合として説明しているが、図５に示すように断面が円形の導電体を用いて亀甲状の固定子コイル３３を形成し、亀甲形状頂部の両端に凹部３３ｃを形成してもよく、実施の形態１における効果に加えて、円形である導電体用いた場合、凹部３３ｃの加工が容易となる利点がある。 Embodiment 2.
FIG. 5 is a plan view showing a main part of the stator coil 33 of the rotary electric machine according to the second embodiment.
In the above-described first embodiment, the stator coil 33 is described as a case where a conductor having a rectangular cross section is used, but as shown in FIG. 5, the stator coil 33 is fixed in a turtle shell shape by using a conductor having a circular cross section. The child coil 33 may be formed, and recesses 33c may be formed at both ends of the top of the tortoise shell shape. In addition to the effect in the first embodiment, when a circular conductor is used, the recess 33c can be easily processed. There is.

実施の形態３．
図６は、実施の形態３に関わる回転電機の固定子コイルを示す平面図および要部拡大図である。
図において、固定子コイル３３は、導電体全体に凹部３３ｃを成形した後に、亀甲形状に巻き回して導電体の外周全体に凹部３３ｃ、３３ｄ有する形に形成されている。
図７は、このような固定子コイル３３のスロット挿通部３３ａを固定子鉄心３１のスロット３１ａに挿入して固定子３を組立てた状態を軸方向に垂直な平面で切断した断面で示している。すなわち、コイル頂部からコイルエンド部３３ｂ、スロット挿通部３３ａを含む全体に連通した凹部３３ｃ、３３ｄが形成されることになる。 Embodiment 3.
FIG. 6 is a plan view and an enlarged view of a main part showing the stator coil of the rotary electric machine according to the third embodiment.
In the figure, the stator coil 33 is formed so as to have recesses 33c and 33d all over the outer periphery of the conductor by winding the stator coil 33 in a hexagonal shape after forming the recesses 33c in the entire conductor.
FIG. 7 shows a state in which the slot insertion portion 33a of the stator coil 33 is inserted into the slot 31a of the stator core 31 to assemble the stator 3 in a cross section cut in a plane perpendicular to the axial direction. .. That is, recesses 33c and 33d that communicate with the entire coil top portion including the coil end portion 33b and the slot insertion portion 33a are formed.

したがって、固定子３に液体の冷媒を接触させて冷却する構造の回転電機１００の場合、冷媒が凹部３３ｃ、３３ｄを伝い、固定子鉄心３１のスロット内に効率的に供給されることになり、この結果、回転電機の冷却性能を一層向上させることができる。 Therefore, in the case of the rotary electric machine 100 having a structure in which the liquid refrigerant is brought into contact with the stator 3 to be cooled, the refrigerant is efficiently supplied into the slot of the stator core 31 through the recesses 33c and 33d. As a result, the cooling performance of the rotary electric machine can be further improved.

なお、本開示には、例示的な実施の形態が記載されているが、実施の形態に記載された様々な特徴、態様、及び機能は、特定の実施の形態の適用に限られるのではなく、単独で、または様々な組み合わせで実施の形態に適用可能である。
従って、例示されていない無数の変形例が、本願明細書に開示される技術の範囲内において想定される。例えば、少なくとも１つの構成要素を変形する場合、追加する場合または省略する場合が含まれるものとする。 Although exemplary embodiments are described in the present disclosure, the various features, aspects, and functions described in the embodiments are not limited to the application of a particular embodiment. , Alone, or in various combinations.
Therefore, innumerable variations not illustrated are envisioned within the scope of the techniques disclosed herein. For example, it is assumed that at least one component is modified, added or omitted.

１：ハウジング、 ２：ブラケット、 ３：固定子、 ４：ベアリング、 ５：回転軸、
６：回転子、 ３１：固定子鉄心、 ３１ａ：スロット、 ３２：固定子巻線、
３３：固定子コイル、 ３３ａ：スロット挿通部、 ３３ｂ：コイルエンド部、
３３ｃ，３３ｄ：凹部、 １００：回転電機 1: Housing, 2: Bracket, 3: Stator, 4: Bearing, 5: Rotating shaft,
6: Rotor, 31: Stator core, 31a: Slot, 32: Stator winding,
33: Stator coil, 33a: Slot insertion part, 33b: Coil end part,
33c, 33d: concave, 100: rotary electric machine

Claims (5)

複数のスロットが周方向に配列された円環状の固定子鉄心、および絶縁被覆された導電体を用いて形成され、上記固定子鉄心に装着された固定子巻線を有する固定子と、前記固定子に対向して回転可能に支持された回転子とを備えた回転電機であって、
前記固定子巻線は、前記固定子鉄心のスロットに挿通されるスロット挿通部とそれぞれのスロット挿通部を電気的に接続するコイルエンド部とからなるコイル単体を複数組み合わせて形成されるとともに、前記コイルエンド部の頂部において前記導電体を凹ませた凹部を設けたことを特徴とする回転電機。 An annular stator core in which a plurality of slots are arranged in the circumferential direction, and a stator having a stator winding formed by using an insulating coated conductor and mounted on the stator core, and the fixing thereof. It is a rotary electric machine equipped with a rotor that is rotatably supported facing the child.
The stator winding is formed by combining a plurality of coil units including a slot insertion portion inserted into the slot of the stator core and a coil end portion for electrically connecting each slot insertion portion, and described above. A rotary electric machine characterized in that a recess in which the conductor is recessed is provided at the top of a coil end portion. 前記固定子巻線における前記コイル単体を断面が矩形である導電体を用い、前記コイルエンド部の頂部に形成する前記凹部を曲率が変化する円弧状としたことを特徴とする請求項１に記載の回転電機。 The first aspect of the present invention, wherein the coil alone in the stator winding uses a conductor having a rectangular cross section, and the recess formed at the top of the coil end portion has an arc shape in which the curvature changes. Rotating electric machine. 前記固定子巻線における前記コイル単体を断面が円形である導電体を用いたことを特徴とする請求項１に記載の回転電機。 The rotary electric machine according to claim 1, wherein a conductor having a circular cross section is used for the coil unit in the stator winding. 前記固定子巻線における前記コイル単体の前記スロット挿通部および前記コイルエンド部にわたり前記凹部が設けられていることを特徴とする請求項１から請求項３のいずれか一項に記載の回転電機。 The rotary electric machine according to any one of claims 1 to 3, wherein the recess is provided over the slot insertion portion and the coil end portion of the coil unit in the stator winding. 前記固定子巻線における前記コイル単体が亀甲形状に形成されており、前記亀甲形状の両端の頂部に前記凹部が設けられていることを特徴とする請求項１から請求項３のいずれか一項に記載の回転電機。 Any one of claims 1 to 3, wherein the coil alone in the stator winding is formed in a hexagonal shape, and the recesses are provided at the tops of both ends of the hexagonal shape. The rotary electric machine described in.
JP2019227965A 2019-12-18 2019-12-18 Rotary electric machine Pending JP2021097523A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023188530A1 (en) * 2022-03-31 2023-10-05 株式会社Ihi Stator for rotary electric machine

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Publication number Priority date Publication date Assignee Title
JPS62154767U (en) * 1986-03-20 1987-10-01
JP2017099220A (en) * 2015-11-27 2017-06-01 日立オートモティブシステムズ株式会社 Rotary electric machine and manufacturing method of stator for rotary electric machine
WO2018154944A1 (en) * 2017-02-21 2018-08-30 パナソニックＩｐマネジメント株式会社 Motor

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS62154767U (en) * 1986-03-20 1987-10-01
JP2017099220A (en) * 2015-11-27 2017-06-01 日立オートモティブシステムズ株式会社 Rotary electric machine and manufacturing method of stator for rotary electric machine
WO2018154944A1 (en) * 2017-02-21 2018-08-30 パナソニックＩｐマネジメント株式会社 Motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023188530A1 (en) * 2022-03-31 2023-10-05 株式会社Ihi Stator for rotary electric machine

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