WO2020148869A1 - Rotating electric machine stator and method for manufacturing rotating electric machine stator - Google Patents

Rotating electric machine stator and method for manufacturing rotating electric machine stator Download PDF

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Publication number
WO2020148869A1
WO2020148869A1 PCT/JP2019/001291 JP2019001291W WO2020148869A1 WO 2020148869 A1 WO2020148869 A1 WO 2020148869A1 JP 2019001291 W JP2019001291 W JP 2019001291W WO 2020148869 A1 WO2020148869 A1 WO 2020148869A1
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WIPO (PCT)
Prior art keywords
annular
electric machine
stator
rotating electric
connecting body
Prior art date
Application number
PCT/JP2019/001291
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French (fr)
Japanese (ja)
Inventor
一生 大内田
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.)
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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 CN201980069482.7A priority Critical patent/CN113273063A/en
Priority to JP2020566052A priority patent/JP7044178B2/en
Priority to PCT/JP2019/001291 priority patent/WO2020148869A1/en
Publication of WO2020148869A1 publication Critical patent/WO2020148869A1/en

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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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • 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
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles

Definitions

  • the present invention relates to a rotating electric machine stator and a method for manufacturing a rotating electric machine stator.
  • Patent Literature 1 describes a technique of forming a coil for each laminated core piece and then coupling a plurality of laminated core pieces in an annular shape in order to improve the space factor.
  • An object of the invention is to provide a stator of a rotating electric machine and a method of manufacturing a stator of the rotating electric machine, which can improve the space factor of the coil and the productivity.
  • the stator of the rotating electric machine is for winding a conductor wire forming a coil, and an iron core having an annular connecting body and a plurality of tooth portions in which a plurality of yokes are connected in an annular shape at intervals.
  • a method for manufacturing a stator of a rotary electric machine according to the present invention wherein a plurality of teeth are annularly formed in a state in which a plurality of yokes are oriented in a direction along a central axis of an annular connecting body that is connected in an annular shape at intervals.
  • a rotating step of rotating the tooth portion with respect to is
  • the teeth are held by the annular connecting body in a state of being oriented along the central axis of the annular connecting body. Therefore, the space factor of the coil can be improved and the productivity can be improved.
  • FIG. 3 is a perspective view of a stator according to the first embodiment.
  • FIG. 6 is a perspective view showing a state before coil formation of the stator in the first embodiment.
  • FIG. 3 is a perspective view of an annular connecting body according to the first embodiment.
  • FIG. 3 is an enlarged view of a yoke as viewed in the circumferential direction of the annular connecting body according to the first embodiment.
  • FIG. 3 is a perspective view of a tooth portion according to the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment.
  • FIG. 7 is a schematic diagram for explaining the stator manufacturing method in
  • FIG. 1 is a perspective view of a stator according to the first embodiment.
  • FIG. 1 shows the stator 1 viewed from diagonally above.
  • the vertical direction of each component of the stator 1 is designated with reference to FIG.
  • the stator 1 of the rotating electric machine includes an iron core 20 and a plurality of coils 30.
  • FIG. 1 illustrates a stator 1 including 12 coils 30.
  • the iron core 20 has a plurality of yokes 21 and a plurality of tooth portions 22.
  • the plurality of yokes 21 are connected at regular intervals in an annular shape to form an annular connection body.
  • the tooth portion 22 is not formed as an integral member with the yoke 21.
  • the tooth portion 22 has, for example, a prismatic shape.
  • a bobbin 40 made of an insulating material is attached to the tooth portion 22.
  • the bobbin 40 is provided so as to cover the periphery of the tooth portion 22 along the longitudinal direction.
  • One end portion of the tooth portion 22 in the longitudinal direction projects from the bobbin 40, for example.
  • the other end of the tooth portion 22 in the longitudinal direction does not protrude from the bobbin 40, for example.
  • the coil 30 is formed by winding a conductor wire around the bobbin 40.
  • the tooth portion 22 is attached to the annular connecting body. As shown in FIG. 1, in the stator 1 in a completed state, one end portion of the tooth portion 22 is located between two yokes 21 adjacent to each other with a gap. At this time, the upper surface of the tooth portion 22 is located between the upper surfaces of the two yokes 21. At this time, the outer diameter surface of the tooth portion 22 is located between the outer diameter surfaces of the two yokes 21. The other end of the tooth portion 22 faces the inner side in the radial direction of the annular coupling body. The end surface of the bobbin 40 contacts or faces the inner diameter surface of the annular coupling body. A part of the end surface of the bobbin 40 is located above the upper surface of the annular coupling body.
  • FIG. 2 is a perspective view showing a state before coil formation of the stator in the first embodiment.
  • the upper surface of the ring-shaped connected body in FIG. 2 faces downward.
  • the tooth portion 22 in FIG. 2 is held so as to hang from the annular connecting body at one end portion. At this time, the outer diameter surface of the tooth portion 22 faces upward, and the lower surface of the tooth portion 22 faces the inner side in the radial direction of the annular coupling body.
  • the coil 30 is formed by winding a conductor wire around the bobbin 40 in the state shown in FIG.
  • FIG. 3 is a perspective view of the annular connecting body according to the first embodiment.
  • the upper surface of the ring-shaped connected body in FIG. 3 faces upward, as in FIG.
  • a groove 21 a is formed in the yoke 21.
  • the groove 21a is formed on both of the two end faces in the circumferential direction of the annular coupling body. That is, one yoke 21 has two grooves 21a.
  • the groove 21a is formed, for example, at a height close to the upper surface of the yoke 21 from the outer diameter surface toward the inner side.
  • the annular connecting body has a plurality of connecting portions 21b.
  • the connecting portion 21b connects the end faces in the circumferential direction of the two yokes 21 adjacent to each other with a space.
  • the connecting portion 21b is formed, for example, so as to project in the circumferential direction from an edge portion where the lower surface of the yoke 21 and the outer diameter surface intersect.
  • FIG. 4 is an enlarged view of the yoke viewed from the circumferential direction of the annular connecting body according to the first embodiment.
  • the yoke 21 in FIG. 4 has the upper surface facing upward, as in FIG. From the viewpoint of FIG. 5, the left side is the outer side in the radial direction of the annular connecting body, and the right side is the inner side in the radial direction of the annular connecting body.
  • the groove 21a has a bent shape.
  • the groove 21a has a horizontal portion and a vertical portion.
  • the horizontal portion is formed radially inward from the outer diameter surface of the yoke 21.
  • the vertical portion is formed from the innermost portion of the horizontal portion in a direction along the central axis of the annular coupling body.
  • the vertical portion is formed, for example, from the innermost portion of the horizontal portion toward the lower surface side of the yoke 21.
  • FIG. 5 is a perspective view of the tooth portion according to the first embodiment.
  • the tooth portion 22 has a rotating shaft 22a.
  • the rotary shaft 22a projects from one end of the tooth portion 22 in the circumferential direction of the annular coupling body.
  • the rotating shaft 22a is provided on both the lower surface of the tooth portion 22 and the two side surfaces adjacent to the outer diameter surface.
  • the rotary shaft 22a is provided, for example, at a position closer to the outer diameter surface on the side surface of the tooth portion 22.
  • a notch 22b is formed at one end of the tooth portion 22.
  • the notch 22b is formed at the edge of the annular connecting body along the circumferential direction.
  • the notch 22b is formed, for example, at an edge portion where the lower surface of the tooth portion 22 and the outer diameter surface intersect.
  • the bobbin 40 may be formed, for example, by sandwiching the tooth portion 22 with a symmetrical member.
  • the bobbin 40 may be integrally molded, for example.
  • the protrusion 40a of the bobbin 40 is appropriately arranged according to the specifications of the rotating electric machine.
  • FIG. 6 to 10 are schematic diagrams for explaining the stator manufacturing method according to the first embodiment.
  • FIG. 11 is a flowchart showing the stator manufacturing method according to the first embodiment.
  • 6 to 10 are views showing a change in the positional relationship between the annular connecting body and one tooth portion 22 in the process of manufacturing the stator 1 from a certain viewpoint. 6 to 10, the bobbin 40 and the portion of the tooth portion 22 other than the one end portion are not shown.
  • the upper surface of the yoke 21 in FIGS. 6 and 7 faces downward, as in FIG. From the viewpoints of FIGS. 6 and 7, the left side is the radial inner side of the annular connecting body, and the right side is the radial outer side of the annular connecting body.
  • the upper surface of the yoke 21 in FIGS. 8 to 10 faces upward, as in FIG. From the viewpoints of FIGS. 8 to 10, the left side is the outer side in the radial direction of the annular connecting body, and the right side is the inner side in the radial direction of the annular connecting body.
  • stator 1 An example of a procedure for manufacturing the stator 1 will be described below with reference to FIGS. 6 to 11.
  • step S101 a holding process is performed.
  • the holding step for example, as shown in FIG. 6, the two rotary shafts 22a of the tooth portion 22 are inserted into the two grooves 21a from the outside in the radial direction with respect to the horizontally connected annular coupling body with the upper surface facing downward.
  • the rotary shaft 22a is pushed to the innermost portion of the horizontal portion of the groove 21a, as shown in FIG.
  • the tooth portion 22 is held between the two yokes 21 adjacent to each other with a gap.
  • the holding step is performed on all the tooth portions 22, as shown in FIG. 2, the plurality of tooth portions 22 are held downward from the horizontally connected annular connecting body.
  • step S102 a coil forming process is performed.
  • the conductor wires are sequentially wound around all the bobbins 40 in a state where the plurality of tooth portions 22 are held by the annular coupling body.
  • one conductor wire is continuously wound around all bobbins 40 without being cut in the middle.
  • step S103 the upside down process is performed.
  • the annular connecting body is turned upside down so that the upper surface of the yoke 21 faces upward.
  • FIG. 8 shows the yoke 21 in a state in which the annular connecting body is vertically inverted about the axis along the depth direction while maintaining the viewpoints of FIGS. 6 and 7.
  • step S104 the rotation process is performed.
  • the tooth portion 22 is rotated inward in the radial direction of the annular coupling body with the rotating shaft 22a located at the innermost portion of the horizontal portion of the groove 21a as a fulcrum.
  • the tooth portion 22 is rotated until the notch 22b contacts the connecting portion 21b.
  • step S105 the fixing process is performed.
  • the rotating shaft 22a is pushed to the innermost portion of the vertical portion of the groove 21a, so that the tooth portion 22 is fixed to the annular coupling body.
  • the connecting portion 21b fits into the notch 22b in a state where the rotary shaft 22a is located at the innermost portion of the vertical portion of the groove 21a.
  • the tooth portion 22 is fixed with the other end thereof facing inward in the radial direction of the annular coupling body.
  • the fixing process is performed on all the tooth portions 22, the stator 1 shown in FIG. 1 is completed.
  • the upside down process or the rotating process may be carried out first if it is after the coil forming process. Further, for example, in order to omit the upside-down process, in the holding process, the plurality of teeth 22 may be held upward from the annular coupling body that is horizontally installed with the upper surface facing upward.
  • the iron core 20 has the annular connecting body in which a plurality of yokes 21 are connected in an annular shape with a gap and a plurality of tooth portions 22.
  • the bobbin 40 is attached to the tooth portion 22 for winding the conductor wire forming the coil 30.
  • the tooth portion 22 is formed as a member separate from the yoke 21, and can be held by the annular connecting body in a state of facing the direction along the central axis of the annular connecting body.
  • the conductor wire can be wound around the bobbin 40 in a state where the interval between the tooth portions 22 is widened. That is, the space through which the winding nozzle passes can be enlarged.
  • the conductor wire can be continuously wound around the plurality of bobbins 40 without being cut, and the number of wire connection steps can be reduced. Therefore, the space factor of the coil 30 can be improved and the productivity can be improved.
  • the yoke 21 has a groove 21a formed on the end face in the circumferential direction of the annular connecting body.
  • the tooth portion 22 has a rotary shaft 22a that projects in the circumferential direction of the annular coupling body, and the rotary shaft 22a is inserted into the groove 21a to hold or hold between two adjacent yokes 21 with a gap. Fixed. That is, the tooth portion 22 is mechanically attached to the annular coupling body rather than being welded thereto. Therefore, vibration and noise of the rotary electric machine due to thermal strain can be suppressed.
  • the groove 21a of the yoke 21 extends from the outer diameter surface of the annular connecting member toward the inner side in the radial direction, and from the innermost portion of the horizontal portion toward the direction along the central axis of the annular connecting member. And a vertical portion formed by.
  • the tooth portion 22 is rotatable around the rotation shaft 22a toward the inner side of the annular coupling body in a state where the rotation shaft 22a is located at the innermost portion of the horizontal portion of the groove 21a. Therefore, the tooth portion 22 can be rotated from the state in which it is oriented along the central axis of the annular coupling body to the state in which it is oriented inward in the radial direction.
  • the annular connecting body also has a connecting portion 21b that connects the end faces in the circumferential direction of two yokes 21 that are adjacent to each other with a space therebetween.
  • the tooth portion 22 has a notch 22b formed at an edge portion along the circumferential direction of the annular coupling body.
  • the connecting portion 21b fits into the notch 22b of the tooth portion 22 in a state where the tooth portion 22 faces the inner side in the radial direction of the annular connecting body and the rotary shaft 22a is located at the innermost portion of the vertical portion of the groove 21a. Therefore, the connecting portion 21b can be used as a stopper and a positioning member for the rotatable tooth portion 22.
  • the method for manufacturing the stator of the rotating electric machine includes, for example, a plurality of tooth portions 22 in a state in which a plurality of yokes 21 are oriented in the direction along the central axis of an annular connector that is annularly connected at intervals.
  • Holding step for holding the ring-shaped connecting body a coil forming step for sequentially winding conductor wires around all the bobbins 40 attached to each of the plurality of tooth portions 22, and a radially inner side of the ring-shaped connecting body.
  • the rotating step of rotating the tooth portion 22 with respect to the yoke 21 is provided. Therefore, the space factor of the coil 30 can be improved and the productivity can be improved.
  • the method for manufacturing the stator of the rotating electric machine includes, for example, a vertical inversion process performed after the coil formation process.
  • the holding step the plurality of tooth portions 22 are held downward from the horizontally connected annular connecting body.
  • the upside down step the annular connecting body is turned upside down.
  • the coil forming step can be carried out in a state where the tooth portion 22 is stably held by being hung from the annular connecting body.
  • stator 1 having 12 teeth 22 and 12 coils 30 is illustrated, but the number of teeth 22 and the number of phases can be appropriately changed according to the specifications of the rotating electric machine.
  • the plurality of protrusions 40a provided on the end surface of the bobbin 40 are used, for example, when forming a coil.
  • An insulation distance can be secured by passing a connecting wire between the protrusions 40a and ensuring a distance between the connecting wires.
  • the stator 1 according to the first embodiment is intended for an inner rotor type rotating electric machine because the crossover wire does not loosen when the tooth portion 22 is rotated, but the crossover wire is hooked on a pin or a jig. After the conductor wire is wound with the wire slackened, the crossover wire hooked from the pin or the jig is pulled out before the tooth portion 22 is rotated, so that it can be applied to the outer rotor type rotating electric machine.
  • the present invention can be used when manufacturing a stator of a rotating electric machine.

Abstract

Provided are a rotating electric machine stator, the coil occupancy rate of which can be improved and the productivity of which can be improved and a method for manufacturing the rotating electric machine stator. The rotating electric machine stator (1) according to this invention is provided with: a core (20) having an annular connection body in which a plurality of yokes (21) are annularly connected at intervals and a plurality of tooth portions (22); and a bobbin (40) attached to each of the tooth portions (22) in order that a conductor wire forming a coil (30) is wound therearound. The tooth portions (22) are each formed as a member separated from the yokes (21) and can be held by the annular connection body in a state of facing in a direction along the central axis of the annular connection body.

Description

回転電機の固定子及び回転電機の固定子の製造方法Rotating electric machine stator and method of manufacturing rotating electric machine stator
　この発明は、回転電機の固定子及び回転電機の固定子の製造方法に関する。 The present invention relates to a rotating electric machine stator and a method for manufacturing a rotating electric machine stator.
　回転電機の固定子においては、小型化及び高出力化を図るために、例えば、コイルの占積率を向上させる工夫がなされる。特許文献１には、占積率を向上させるために、積層鉄心個片ごとにコイルを形成した後に、複数の積層鉄心個片を環状に結合する技術が記載されている。 ▽In the stator of the rotating electric machine, in order to reduce the size and increase the output, for example, a device for improving the space factor of the coil is made. Patent Literature 1 describes a technique of forming a coil for each laminated core piece and then coupling a plurality of laminated core pieces in an annular shape in order to improve the space factor.
日本特許第３３５５７００号公報Japanese Patent No. 3355700
　特許文献１に記載の技術では、個別に形成されたコイル同士を結線する箇所が多くなる。このため、固定子の生産性が低下する。 In the technique described in Patent Document 1, there are many places where the individually formed coils are connected to each other. Therefore, the productivity of the stator is reduced.
　この発明は、上記の課題を解決するためになされた。その目的は、コイルの占積率を向上させると共に生産性を向上させることができる回転電機の固定子及び回転電機の固定子の製造方法を提供することである。 This invention was made to solve the above problems. An object of the invention is to provide a stator of a rotating electric machine and a method of manufacturing a stator of the rotating electric machine, which can improve the space factor of the coil and the productivity.
　この発明に係る回転電機の固定子は、複数の継鉄が間隔を空けて円環状に連結された環状連結体及び複数の歯部を有する鉄心と、コイルを形成する導体線を巻回すために歯部に取り付けられたボビンと、を備え、歯部は、継鉄とは別の部材として形成され、環状連結体の中心軸に沿った方向を向いた状態で環状連結体によって保持可能なものである。 The stator of the rotating electric machine according to the present invention is for winding a conductor wire forming a coil, and an iron core having an annular connecting body and a plurality of tooth portions in which a plurality of yokes are connected in an annular shape at intervals. A bobbin attached to the tooth portion, wherein the tooth portion is formed as a member separate from the yoke, and can be held by the annular connecting body in a state along the central axis of the annular connecting body. Is.
　この発明に係る回転電機の固定子の製造方法は、複数の継鉄が間隔を空けて円環状に連結された環状連結体の中心軸に沿った方向を向いた状態で複数の歯部を環状連結体に保持させる保持工程と、複数の歯部のそれぞれに取り付けられた全てのボビンに対して順番に導体線を巻回すコイル形成工程と、環状連結体の径方向内側を向くように継鉄に対して歯部を回転させる回転工程と、を備える。 A method for manufacturing a stator of a rotary electric machine according to the present invention, wherein a plurality of teeth are annularly formed in a state in which a plurality of yokes are oriented in a direction along a central axis of an annular connecting body that is connected in an annular shape at intervals. A holding step of holding the connecting body, a coil forming step of sequentially winding conductor wires around all bobbins attached to each of the plurality of teeth, and a yoke so as to face the inner side in the radial direction of the annular connecting body. And a rotating step of rotating the tooth portion with respect to.
　これらの発明によれば、歯部は、環状連結体の中心軸に沿った方向を向いた状態で環状連結体によって保持される。このため、コイルの占積率を向上させると共に生産性を向上させることができる。 According to these inventions, the teeth are held by the annular connecting body in a state of being oriented along the central axis of the annular connecting body. Therefore, the space factor of the coil can be improved and the productivity can be improved.
実施の形態１における固定子の斜視図である。FIG. 3 is a perspective view of a stator according to the first embodiment. 実施の形態１における固定子のコイル形成前の状態を示す斜視図である。FIG. 6 is a perspective view showing a state before coil formation of the stator in the first embodiment. 実施の形態１における環状連結体の斜視図である。FIG. 3 is a perspective view of an annular connecting body according to the first embodiment. 実施の形態１における環状連結体の周方向から見た継鉄の拡大図である。FIG. 3 is an enlarged view of a yoke as viewed in the circumferential direction of the annular connecting body according to the first embodiment. 実施の形態１における歯部の斜視図である。FIG. 3 is a perspective view of a tooth portion according to the first embodiment. 実施の形態１における固定子の製造方法を説明するための模式図である。FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment. 実施の形態１における固定子の製造方法を説明するための模式図である。FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment. 実施の形態１における固定子の製造方法を説明するための模式図である。FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment. 実施の形態１における固定子の製造方法を説明するための模式図である。FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment. 実施の形態１における固定子の製造方法を説明するための模式図である。FIG. 7 is a schematic diagram for explaining the stator manufacturing method in the first embodiment. 実施の形態１における固定子の製造方法を示すフローチャートである。6 is a flowchart showing a stator manufacturing method according to the first embodiment.
　以下、添付の図面を参照して実施の形態について説明する。各図において、同一または相当する部分には同一の符号が付される。重複する説明は、適宜簡略化あるいは省略する。 Embodiments will be described below with reference to the accompanying drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.
実施の形態１．
　図１は、実施の形態１における固定子の斜視図である。 Embodiment 1.
FIG. 1 is a perspective view of a stator according to the first embodiment.
　図１は、斜め上方から見た固定子１を示す。以下の説明では、図１を基準として、固定子１の各部品の上下方向を指定する。 FIG. 1 shows the stator 1 viewed from diagonally above. In the following description, the vertical direction of each component of the stator 1 is designated with reference to FIG.
　回転電機の固定子１は、鉄心２０及び複数のコイル３０を備える。図１は、１２個のコイル３０を備える固定子１を例示する。 The stator 1 of the rotating electric machine includes an iron core 20 and a plurality of coils 30. FIG. 1 illustrates a stator 1 including 12 coils 30.
　鉄心２０は、複数の継鉄２１及び複数の歯部２２を有する。複数の継鉄２１は、等間隔を空けて円環状に連結されることで環状連結体を形成している。歯部２２は、継鉄２１と一体の部材として形成されていない。 The iron core 20 has a plurality of yokes 21 and a plurality of tooth portions 22. The plurality of yokes 21 are connected at regular intervals in an annular shape to form an annular connection body. The tooth portion 22 is not formed as an integral member with the yoke 21.
　歯部２２は、例えば、角柱形状を呈する。歯部２２には、絶縁材で形成されたボビン４０が取り付けられる。ボビン４０は、長手方向に沿って歯部２２の周囲を覆うように設けられる。歯部２２の長手方向における一端部は、例えば、ボビン４０から突出する。歯部２２の長手方向における他端部は、例えば、ボビン４０から突出しない。コイル３０は、ボビン４０に導体線を巻回すことで形成される。 The tooth portion 22 has, for example, a prismatic shape. A bobbin 40 made of an insulating material is attached to the tooth portion 22. The bobbin 40 is provided so as to cover the periphery of the tooth portion 22 along the longitudinal direction. One end portion of the tooth portion 22 in the longitudinal direction projects from the bobbin 40, for example. The other end of the tooth portion 22 in the longitudinal direction does not protrude from the bobbin 40, for example. The coil 30 is formed by winding a conductor wire around the bobbin 40.
　歯部２２は、環状連結体に対して取り付けられる。図１に示すように、完成した状態の固定子１において、歯部２２の一端部は、間隔を空けて隣り合う２つの継鉄２１の間に位置する。このとき、歯部２２の上面は、２つの継鉄２１の上面の間に位置する。このとき、歯部２２の外径面は、２つの継鉄２１の外径面の間に位置する。歯部２２の他端部は、環状連結体の径方向内側を向く。ボビン４０の端面は、環状連結体の内径面に接触又は対向する。ボビン４０の端面の一部は、環状連結体の上面よりも上方に位置する。 The tooth portion 22 is attached to the annular connecting body. As shown in FIG. 1, in the stator 1 in a completed state, one end portion of the tooth portion 22 is located between two yokes 21 adjacent to each other with a gap. At this time, the upper surface of the tooth portion 22 is located between the upper surfaces of the two yokes 21. At this time, the outer diameter surface of the tooth portion 22 is located between the outer diameter surfaces of the two yokes 21. The other end of the tooth portion 22 faces the inner side in the radial direction of the annular coupling body. The end surface of the bobbin 40 contacts or faces the inner diameter surface of the annular coupling body. A part of the end surface of the bobbin 40 is located above the upper surface of the annular coupling body.
　図２は、実施の形態１における固定子のコイル形成前の状態を示す斜視図である。 FIG. 2 is a perspective view showing a state before coil formation of the stator in the first embodiment.
　図２における環状連結体は、上面が下向きになっている。 The upper surface of the ring-shaped connected body in FIG. 2 faces downward.
　図２における歯部２２は、一端部で環状連結体にぶら下がるようにして保持されている。このとき、歯部２２の外径面は上向きになり、歯部２２の下面は環状連結体の径方向内側を向く。実施の形態１において、コイル３０は、図２に示す状態のボビン４０に導体線を巻回すことで形成される。 The tooth portion 22 in FIG. 2 is held so as to hang from the annular connecting body at one end portion. At this time, the outer diameter surface of the tooth portion 22 faces upward, and the lower surface of the tooth portion 22 faces the inner side in the radial direction of the annular coupling body. In the first embodiment, the coil 30 is formed by winding a conductor wire around the bobbin 40 in the state shown in FIG.
　図３は、実施の形態１における環状連結体の斜視図である。 FIG. 3 is a perspective view of the annular connecting body according to the first embodiment.
　図３における環状連結体は、図１と同様に、上面が上向きになっている。 The upper surface of the ring-shaped connected body in FIG. 3 faces upward, as in FIG.
　継鉄２１には、溝２１ａが形成されている。溝２１ａは、環状連結体の周方向における２つの端面の両方に形成されている。つまり、１つの継鉄２１は、２つの溝２１ａを有する。溝２１ａは、例えば、継鉄２１の上面寄りの高さで外径面から内側に向かって形成されている。 A groove 21 a is formed in the yoke 21. The groove 21a is formed on both of the two end faces in the circumferential direction of the annular coupling body. That is, one yoke 21 has two grooves 21a. The groove 21a is formed, for example, at a height close to the upper surface of the yoke 21 from the outer diameter surface toward the inner side.
　環状連結体は、複数の連結部２１ｂを有する。連結部２１ｂは、間隔を空けて隣り合う２つの継鉄２１の周方向における端面同士を連結する。連結部２１ｂは、例えば、継鉄２１の下面と外径面とが交差する縁部から周方向に突出するように形成されている。 The annular connecting body has a plurality of connecting portions 21b. The connecting portion 21b connects the end faces in the circumferential direction of the two yokes 21 adjacent to each other with a space. The connecting portion 21b is formed, for example, so as to project in the circumferential direction from an edge portion where the lower surface of the yoke 21 and the outer diameter surface intersect.
　図４は、実施の形態１における環状連結体の周方向から見た継鉄の拡大図である。 FIG. 4 is an enlarged view of the yoke viewed from the circumferential direction of the annular connecting body according to the first embodiment.
　図４における継鉄２１は、図３と同様に、上面が上向きになっている。図５の視点では、左側が環状連結体の径方向外側であり、右側が環状連結体の径方向内側である。 ④ The yoke 21 in FIG. 4 has the upper surface facing upward, as in FIG. From the viewpoint of FIG. 5, the left side is the outer side in the radial direction of the annular connecting body, and the right side is the inner side in the radial direction of the annular connecting body.
　図４に示すように、溝２１ａは、屈曲した形状を呈する。溝２１ａは、水平部分及び垂直部分を有する。水平部分は、継鉄２１の外径面から径方向内側に向かって形成される。垂直部分は、水平部分の最奥部から環状連結体の中心軸に沿った方向に向かって形成される。垂直部分は、例えば、水平部分の最奥部から継鉄２１の下面側に向かって形成される。 As shown in FIG. 4, the groove 21a has a bent shape. The groove 21a has a horizontal portion and a vertical portion. The horizontal portion is formed radially inward from the outer diameter surface of the yoke 21. The vertical portion is formed from the innermost portion of the horizontal portion in a direction along the central axis of the annular coupling body. The vertical portion is formed, for example, from the innermost portion of the horizontal portion toward the lower surface side of the yoke 21.
　図５は、実施の形態１における歯部の斜視図である。 FIG. 5 is a perspective view of the tooth portion according to the first embodiment.
　歯部２２は、回転軸２２ａを有する。回転軸２２ａは、歯部２２の一端部から環状連結体の周方向に突出する。回転軸２２ａは、歯部２２の下面及び外径面と隣接する２つの側面の両方に設けられている。回転軸２２ａは、例えば、歯部２２の側面において外径面寄りの位置に設けられている。 The tooth portion 22 has a rotating shaft 22a. The rotary shaft 22a projects from one end of the tooth portion 22 in the circumferential direction of the annular coupling body. The rotating shaft 22a is provided on both the lower surface of the tooth portion 22 and the two side surfaces adjacent to the outer diameter surface. The rotary shaft 22a is provided, for example, at a position closer to the outer diameter surface on the side surface of the tooth portion 22.
　歯部２２の一端部には、切欠き２２ｂが形成されている。切欠き２２ｂは、環状連結体の周方向に沿った縁部に形成されている。切欠き２２ｂは、例えば、歯部２２の下面と外径面とが交差する縁部に形成されている。 A notch 22b is formed at one end of the tooth portion 22. The notch 22b is formed at the edge of the annular connecting body along the circumferential direction. The notch 22b is formed, for example, at an edge portion where the lower surface of the tooth portion 22 and the outer diameter surface intersect.
　ボビン４０は、例えば、左右対称の部材で歯部２２を挟み込むことで形成されてもよい。ボビン４０は、例えば、一体成形されてもよい。歯部２２の一端部側に位置するボビン４０の端面には、例えば、複数の突起４０ａが設けられる。ボビン４０の突起４０ａは、回転電機の仕様に応じて適宜配置される。 The bobbin 40 may be formed, for example, by sandwiching the tooth portion 22 with a symmetrical member. The bobbin 40 may be integrally molded, for example. On the end surface of the bobbin 40 located on the one end side of the tooth portion 22, for example, a plurality of protrusions 40a are provided. The protrusion 40a of the bobbin 40 is appropriately arranged according to the specifications of the rotating electric machine.
　図６から図１０は、実施の形態１における固定子の製造方法を説明するための模式図である。図１１は、実施の形態１における固定子の製造方法を示すフローチャートである。 6 to 10 are schematic diagrams for explaining the stator manufacturing method according to the first embodiment. FIG. 11 is a flowchart showing the stator manufacturing method according to the first embodiment.
　図６から図１０は、固定子１の製造の過程における環状連結体と１つの歯部２２との位置関係の変化を一定の視点から見た図である。図６から図１０では、歯部２２のうち一端部以外の部分及びボビン４０の図示は省略されている。 6 to 10 are views showing a change in the positional relationship between the annular connecting body and one tooth portion 22 in the process of manufacturing the stator 1 from a certain viewpoint. 6 to 10, the bobbin 40 and the portion of the tooth portion 22 other than the one end portion are not shown.
　図６及び図７における継鉄２１は、図２と同様に、上面が下向きになっている。図６及び図７の視点では、左側が環状連結体の径方向内側であり、右側が環状連結体の径方向外側である。 The upper surface of the yoke 21 in FIGS. 6 and 7 faces downward, as in FIG. From the viewpoints of FIGS. 6 and 7, the left side is the radial inner side of the annular connecting body, and the right side is the radial outer side of the annular connecting body.
　図８から図１０における継鉄２１は、図１と同様に、上面が上向きになっている。図８から図１０の視点では、左側が環状連結体の径方向外側であり、右側が環状連結体の径方向内側である。 The upper surface of the yoke 21 in FIGS. 8 to 10 faces upward, as in FIG. From the viewpoints of FIGS. 8 to 10, the left side is the outer side in the radial direction of the annular connecting body, and the right side is the inner side in the radial direction of the annular connecting body.
　以下、図６から図１１を参照して、固定子１を製造する手順の一例を説明する。 An example of a procedure for manufacturing the stator 1 will be described below with reference to FIGS. 6 to 11.
　ステップＳ１０１では、保持工程が実施される。保持工程では、例えば、図６に示すように、上面を下向きにした水平に設置された環状連結体に対して、径方向外側から歯部２２の２つの回転軸２２ａが２つの溝２１ａに挿入される。図６の状態から歯部２２が径方向内側に移動されると、図７に示すように、溝２１ａの水平部分の最奥部まで回転軸２２ａが押し込まれる。これにより、歯部２２は、間隔を空けて隣り合う２つの継鉄２１の間で保持される。全ての歯部２２について保持工程が実施されると、図２に示すように、水平に設置された環状連結体から下向きに複数の歯部２２が保持される。 In step S101, a holding process is performed. In the holding step, for example, as shown in FIG. 6, the two rotary shafts 22a of the tooth portion 22 are inserted into the two grooves 21a from the outside in the radial direction with respect to the horizontally connected annular coupling body with the upper surface facing downward. To be done. When the tooth portion 22 is moved inward in the radial direction from the state of FIG. 6, the rotary shaft 22a is pushed to the innermost portion of the horizontal portion of the groove 21a, as shown in FIG. As a result, the tooth portion 22 is held between the two yokes 21 adjacent to each other with a gap. When the holding step is performed on all the tooth portions 22, as shown in FIG. 2, the plurality of tooth portions 22 are held downward from the horizontally connected annular connecting body.
　ステップＳ１０２では、コイル形成工程が実施される。コイル形成工程では、例えば、図２に示すように複数の歯部２２が環状連結体に保持された状態で、全てのボビン４０に対して順番に導体線が巻回される。コイル形成工程では、例えば、１本の導体線が途中で切断されることなく全てのボビン４０に対して連続的に巻回される。 In step S102, a coil forming process is performed. In the coil forming step, for example, as shown in FIG. 2, the conductor wires are sequentially wound around all the bobbins 40 in a state where the plurality of tooth portions 22 are held by the annular coupling body. In the coil forming process, for example, one conductor wire is continuously wound around all bobbins 40 without being cut in the middle.
　ステップＳ１０３では、上下反転工程が実施される。上下反転工程では、継鉄２１の上面が上向きになるように、環状連結体が上下反転される。図８は、図６及び図７の視点を維持したまま奥行方向に沿った軸を中心に環状連結体を上下反転させた状態の継鉄２１を示す。 In step S103, the upside down process is performed. In the upside down step, the annular connecting body is turned upside down so that the upper surface of the yoke 21 faces upward. FIG. 8 shows the yoke 21 in a state in which the annular connecting body is vertically inverted about the axis along the depth direction while maintaining the viewpoints of FIGS. 6 and 7.
　ステップＳ１０４では、回転工程が実施される。回転工程では、図８に示すように、溝２１ａの水平部分の最奥部に位置する回転軸２２ａを支点にして、歯部２２が環状連結体の径方向内側に向かって回転される。歯部２２は、図９に示すように、切欠き２２ｂが連結部２１ｂに接触するまで回転される。 In step S104, the rotation process is performed. In the rotating step, as shown in FIG. 8, the tooth portion 22 is rotated inward in the radial direction of the annular coupling body with the rotating shaft 22a located at the innermost portion of the horizontal portion of the groove 21a as a fulcrum. As shown in FIG. 9, the tooth portion 22 is rotated until the notch 22b contacts the connecting portion 21b.
　ステップＳ１０５では、固定工程が実施される。固定工程では、図１０に示すように、回転軸２２ａが溝２１ａの垂直部分の最奥部まで押し込まれることで、環状連結体に対して歯部２２が固定される。連結部２１ｂは、回転軸２２ａが溝２１ａの垂直部分の最奥部に位置する状態で、切欠き２２ｂに嵌まる。 In step S105, the fixing process is performed. In the fixing step, as shown in FIG. 10, the rotating shaft 22a is pushed to the innermost portion of the vertical portion of the groove 21a, so that the tooth portion 22 is fixed to the annular coupling body. The connecting portion 21b fits into the notch 22b in a state where the rotary shaft 22a is located at the innermost portion of the vertical portion of the groove 21a.
　固定工程により、歯部２２は、他端部が環状連結体の径方向内側を向いた状態で固定される。全ての歯部２２について固定工程が実施されると、図１に示す固定子１が完成する。 By the fixing process, the tooth portion 22 is fixed with the other end thereof facing inward in the radial direction of the annular coupling body. When the fixing process is performed on all the tooth portions 22, the stator 1 shown in FIG. 1 is completed.
　なお、上下反転工程及び回転工程は、コイル形成工程よりも後であれば、どちらを先に実施してもよい。また、例えば、上下反転工程を省くために、保持工程では、上面を上向きにして水平に設置された環状連結体から上向きに複数の歯部２２が保持されてもよい。 Note that either the upside down process or the rotating process may be carried out first if it is after the coil forming process. Further, for example, in order to omit the upside-down process, in the holding process, the plurality of teeth 22 may be held upward from the annular coupling body that is horizontally installed with the upper surface facing upward.
　以上で説明した実施の形態１によれば、鉄心２０は、複数の継鉄２１が間隔を空けて円環状に連結された環状連結体及び複数の歯部２２を有する。ボビン４０は、コイル３０を形成する導体線を巻回すために歯部２２に取り付けられる。歯部２２は、継鉄２１とは別の部材として形成され、環状連結体の中心軸に沿った方向を向いた状態で環状連結体によって保持可能である。これにより、歯部２２同士の間隔を広げた状態でボビン４０に導体線を巻回すことができる。つまり、巻線ノズルが通過する空間を拡大できる。また、導体線を切断せずに複数のボビン４０に対して連続的に巻回し、結線工数を削減することができる。このため、コイル３０の占積率を向上させると共に生産性を向上させることができる。 According to the first embodiment described above, the iron core 20 has the annular connecting body in which a plurality of yokes 21 are connected in an annular shape with a gap and a plurality of tooth portions 22. The bobbin 40 is attached to the tooth portion 22 for winding the conductor wire forming the coil 30. The tooth portion 22 is formed as a member separate from the yoke 21, and can be held by the annular connecting body in a state of facing the direction along the central axis of the annular connecting body. Thereby, the conductor wire can be wound around the bobbin 40 in a state where the interval between the tooth portions 22 is widened. That is, the space through which the winding nozzle passes can be enlarged. Further, the conductor wire can be continuously wound around the plurality of bobbins 40 without being cut, and the number of wire connection steps can be reduced. Therefore, the space factor of the coil 30 can be improved and the productivity can be improved.
　また、継鉄２１は、環状連結体の周方向における端面に形成された溝２１ａを有する。歯部２２は、環状連結体の周方向に突出する回転軸２２ａを有し、回転軸２２ａが溝２１ａに挿入されることで、間隔を空けて隣り合う２つの継鉄２１の間で保持又は固定される。つまり、歯部２２は、環状連結体に対して溶接されるのではなく、機械的に取り付けられる。このため、熱歪に起因する回転電機の振動及び騒音を抑制することができる。 Further, the yoke 21 has a groove 21a formed on the end face in the circumferential direction of the annular connecting body. The tooth portion 22 has a rotary shaft 22a that projects in the circumferential direction of the annular coupling body, and the rotary shaft 22a is inserted into the groove 21a to hold or hold between two adjacent yokes 21 with a gap. Fixed. That is, the tooth portion 22 is mechanically attached to the annular coupling body rather than being welded thereto. Therefore, vibration and noise of the rotary electric machine due to thermal strain can be suppressed.
　また、継鉄２１の溝２１ａは、環状連結体の外径面から径方向内側に向かって形成された水平部分と、水平部分の最奥部から環状連結体の中心軸に沿った方向に向かって形成された垂直部分と、を有する。歯部２２は、回転軸２２ａが溝２１ａの水平部分の最奥部に位置する状態で、回転軸２２ａを中心として環状連結体の内側に向かって回転可能である。このため、環状連結体の中心軸に沿った方向を向いた状態から径方向内側を向いた状態へと歯部２２を回転させることができる。 Further, the groove 21a of the yoke 21 extends from the outer diameter surface of the annular connecting member toward the inner side in the radial direction, and from the innermost portion of the horizontal portion toward the direction along the central axis of the annular connecting member. And a vertical portion formed by. The tooth portion 22 is rotatable around the rotation shaft 22a toward the inner side of the annular coupling body in a state where the rotation shaft 22a is located at the innermost portion of the horizontal portion of the groove 21a. Therefore, the tooth portion 22 can be rotated from the state in which it is oriented along the central axis of the annular coupling body to the state in which it is oriented inward in the radial direction.
　また、環状連結体は、間隔を空けて隣り合う２つの継鉄２１の周方向における端面同士を連結する連結部２１ｂを有する。歯部２２は、環状連結体の周方向に沿った縁部に形成された切欠き２２ｂを有する。連結部２１ｂは、歯部２２が環状連結体の径方向内側を向き且つ回転軸２２ａが溝２１ａの垂直部分の最奥部に位置する状態で、歯部２２の切欠き２２ｂに嵌まる。このため、回転可能な歯部２２のストッパー及び位置決め部材としても連結部２１ｂを利用できる。 The annular connecting body also has a connecting portion 21b that connects the end faces in the circumferential direction of two yokes 21 that are adjacent to each other with a space therebetween. The tooth portion 22 has a notch 22b formed at an edge portion along the circumferential direction of the annular coupling body. The connecting portion 21b fits into the notch 22b of the tooth portion 22 in a state where the tooth portion 22 faces the inner side in the radial direction of the annular connecting body and the rotary shaft 22a is located at the innermost portion of the vertical portion of the groove 21a. Therefore, the connecting portion 21b can be used as a stopper and a positioning member for the rotatable tooth portion 22.
　また、回転電機の固定子の製造方法は、例えば、複数の継鉄２１が間隔を空けて円環状に連結された環状連結体の中心軸に沿った方向を向いた状態で複数の歯部２２を環状連結体に保持させる保持工程と、複数の歯部２２のそれぞれに取り付けられた全てのボビン４０に対して順番に導体線を巻回すコイル形成工程と、環状連結体の径方向内側を向くように継鉄２１に対して歯部２２を回転させる回転工程と、を備える。このため、コイル３０の占積率を向上させると共に生産性を向上させることができる。 In addition, the method for manufacturing the stator of the rotating electric machine includes, for example, a plurality of tooth portions 22 in a state in which a plurality of yokes 21 are oriented in the direction along the central axis of an annular connector that is annularly connected at intervals. Holding step for holding the ring-shaped connecting body, a coil forming step for sequentially winding conductor wires around all the bobbins 40 attached to each of the plurality of tooth portions 22, and a radially inner side of the ring-shaped connecting body. Thus, the rotating step of rotating the tooth portion 22 with respect to the yoke 21 is provided. Therefore, the space factor of the coil 30 can be improved and the productivity can be improved.
　また、回転電機の固定子の製造方法は、例えば、コイル形成工程よりも後に行われる上下反転工程を備える。この場合、保持工程では、水平に設置された環状連結体から下向きに複数の歯部２２が保持される。上下反転工程では、環状連結体が上下反転される。この場合、環状連結体からぶら下げるようにして安定的に歯部２２を保持した状態でコイル形成工程を実施できる。 Also, the method for manufacturing the stator of the rotating electric machine includes, for example, a vertical inversion process performed after the coil formation process. In this case, in the holding step, the plurality of tooth portions 22 are held downward from the horizontally connected annular connecting body. In the upside down step, the annular connecting body is turned upside down. In this case, the coil forming step can be carried out in a state where the tooth portion 22 is stably held by being hung from the annular connecting body.
　実施の形態１では、歯部２２及びコイル３０が１２個である固定子１を例示したが、歯部２２の数及び相数は回転電機の仕様に応じて適宜変更可能である。 In the first embodiment, the stator 1 having 12 teeth 22 and 12 coils 30 is illustrated, but the number of teeth 22 and the number of phases can be appropriately changed according to the specifications of the rotating electric machine.
　実施の形態１において、ボビン４０の端面に設けられた複数の突起４０ａは、例えば、コイル形成時に使用される。突起４０ａの間に渡り線を通し、渡り線間の距離を確保することで、絶縁距離が確保できる。 In the first embodiment, the plurality of protrusions 40a provided on the end surface of the bobbin 40 are used, for example, when forming a coil. An insulation distance can be secured by passing a connecting wire between the protrusions 40a and ensuring a distance between the connecting wires.
　実施の形態１における固定子１は、歯部２２を回転する際に渡り線が弛まないため、インナーロータ型の回転電機を対象としているが、ピン又は治具等に渡り線を引掛けて渡り線を弛ませた状態で導体線を巻回した後、歯部２２の回転前にピン又は治具から引っ掛った渡り線を引き抜くことでアウターロータ型の回転電機にも適用可能となる。 The stator 1 according to the first embodiment is intended for an inner rotor type rotating electric machine because the crossover wire does not loosen when the tooth portion 22 is rotated, but the crossover wire is hooked on a pin or a jig. After the conductor wire is wound with the wire slackened, the crossover wire hooked from the pin or the jig is pulled out before the tooth portion 22 is rotated, so that it can be applied to the outer rotor type rotating electric machine.
　以上のように、この発明は、回転電機の固定子を製造する際に利用できる。 As described above, the present invention can be used when manufacturing a stator of a rotating electric machine.
１　固定子
２０　鉄心
２１　継鉄
２１ａ　溝
２１ｂ　連結部
２２　歯部
２２ａ　回転軸
２２ｂ　切欠き
３０　コイル
４０　ボビン
４０ａ　突起 1 Stator 20 Iron core 21 Yoke 21a Groove 21b Connecting part 22 Teeth 22a Rotating shaft 22b Notch 30 Coil 40 Bobbin 40a Protrusion

Claims (6)

  1. 　複数の継鉄が間隔を空けて円環状に連結された環状連結体及び複数の歯部を有する鉄心と、
    　コイルを形成する導体線を巻回すために前記歯部に取り付けられたボビンと、
    を備え、
    　前記歯部は、前記継鉄とは別の部材として形成され、前記環状連結体の中心軸に沿った方向を向いた状態で前記環状連結体によって保持可能な回転電機の固定子。     An iron core having a plurality of tooth portions and an annular connecting body in which a plurality of yokes are connected in an annular shape at intervals.
    A bobbin attached to the tooth portion for winding a conductor wire forming a coil,
    Equipped with
    The stator of the rotating electric machine, wherein the tooth portion is formed as a member separate from the yoke and can be held by the annular connecting body in a state of being oriented along the central axis of the annular connecting body.
  2. 　前記継鉄は、前記環状連結体の周方向における端面に形成された溝を有し、
    　前記歯部は、前記環状連結体の周方向に突出する回転軸を有し、前記回転軸が前記溝に挿入されることで、間隔を空けて隣り合う２つの前記継鉄の間で保持される請求項１に記載の回転電機の固定子。     The yoke has a groove formed on an end surface in the circumferential direction of the annular coupling body,
    The toothed portion has a rotating shaft projecting in the circumferential direction of the annular coupling body, and the rotating shaft is inserted into the groove to be held between two adjacent yokes with a gap. The stator of the rotating electric machine according to claim 1.
  3. 　前記継鉄の前記溝は、
    　前記環状連結体の外径面から径方向内側に向かって形成された水平部分と、
    　水平部分の最奥部から前記環状連結体の中心軸に沿った方向に向かって形成された垂直部分と、
    を有し、
    　前記歯部は、前記回転軸が前記溝の水平部分の最奥部に位置する状態で前記回転軸を中心として前記環状連結体の内側に向かって回転可能である請求項２に記載の回転電機の固定子。     The groove of the yoke is
    A horizontal portion formed radially inward from the outer diameter surface of the annular connecting body,
    A vertical portion formed from the innermost portion of the horizontal portion toward the direction along the central axis of the annular coupling body,
    Have
    The rotary electric machine according to claim 2, wherein the tooth portion is rotatable toward the inner side of the annular coupling body about the rotation shaft in a state where the rotation shaft is located at the innermost portion of the horizontal portion of the groove. Stator.
  4. 　前記環状連結体は、間隔を空けて隣り合う２つの前記継鉄の周方向における端面同士を連結する連結部を有し、
    　前記歯部は、前記環状連結体の周方向に沿った縁部に形成された切欠きを有し、
    　前記連結部は、前記歯部が前記環状連結体の径方向内側を向き且つ前記回転軸が前記溝の垂直部分の最奥部に位置する状態で前記歯部の前記切欠きに嵌まる請求項３に記載の回転電機の固定子。     The annular connecting body has a connecting portion that connects end surfaces in the circumferential direction of the two yokes adjacent to each other with a space therebetween,
    The tooth portion has a notch formed in an edge portion along the circumferential direction of the annular coupling body,
    The coupling portion fits into the notch of the tooth portion in a state where the tooth portion faces a radially inner side of the annular coupling body and the rotation shaft is located at a deepest portion of a vertical portion of the groove. The stator of the rotating electric machine according to item 3.
  5. 　複数の継鉄が間隔を空けて円環状に連結された環状連結体の中心軸に沿った方向を向いた状態で複数の歯部を前記環状連結体に保持させる保持工程と、
    　複数の前記歯部のそれぞれに取り付けられた全てのボビンに対して順番に導体線を巻回すコイル形成工程と、
    　前記環状連結体の径方向内側を向くように前記継鉄に対して前記歯部を回転させる回転工程と、
    を備えた回転電機の固定子の製造方法。     A holding step of holding a plurality of tooth portions in the annular connecting body in a state in which the plurality of yokes are oriented in the direction along the central axis of the annular connecting body that is connected in an annular shape with a gap,
    A coil forming step of sequentially winding conductor wires on all bobbins attached to each of the plurality of tooth portions;
    A rotating step of rotating the tooth portion with respect to the yoke so as to face the radially inner side of the annular coupling body;
    A method for manufacturing a stator of a rotating electric machine comprising:
  6. 　前記コイル形成工程よりも後に行われる上下反転工程、
    を更に備え、
    　前記保持工程では、水平に設置された前記環状連結体から下向きに複数の前記歯部が保持され、
    　前記上下反転工程では、前記環状連結体が上下反転される請求項５に記載の回転電機の固定子の製造方法。     A vertical inversion step performed after the coil forming step,
    Further equipped with,
    In the holding step, a plurality of the tooth portions are held downward from the horizontally connected annular coupling body,
    The method for manufacturing a stator of a rotating electric machine according to claim 5, wherein the annular connecting body is vertically inverted in the upside-down inverting step.
PCT/JP2019/001291 2019-01-17 2019-01-17 Rotating electric machine stator and method for manufacturing rotating electric machine stator WO2020148869A1 (en)

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CN201980069482.7A CN113273063A (en) 2019-01-17 2019-01-17 Stator of rotating electric machine and method for manufacturing stator of rotating electric machine
JP2020566052A JP7044178B2 (en) 2019-01-17 2019-01-17 Manufacturing method of stator of rotary electric machine and stator of rotary electric machine
PCT/JP2019/001291 WO2020148869A1 (en) 2019-01-17 2019-01-17 Rotating electric machine stator and method for manufacturing rotating electric machine stator

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225038A (en) * 1998-03-25 1998-08-21 Asmo Co Ltd Stator iron core of rotating-field type motor and its manufacture
JP2000324772A (en) * 1999-05-10 2000-11-24 Mitsubishi Electric Corp Winding machine
WO2003047070A1 (en) * 2001-11-29 2003-06-05 Yamaha Hatsudoki Kabushiki Kaisha Axial gap type dynamo-electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225038A (en) * 1998-03-25 1998-08-21 Asmo Co Ltd Stator iron core of rotating-field type motor and its manufacture
JP2000324772A (en) * 1999-05-10 2000-11-24 Mitsubishi Electric Corp Winding machine
WO2003047070A1 (en) * 2001-11-29 2003-06-05 Yamaha Hatsudoki Kabushiki Kaisha Axial gap type dynamo-electric machine

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JP7044178B2 (en) 2022-03-30
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