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JP6947045B2 - Stator and method of manufacturing the stator - Google Patents
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JP6947045B2 - Stator and method of manufacturing the stator - Google Patents

Stator and method of manufacturing the stator Download PDF

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JP6947045B2
JP6947045B2 JP2018004315A JP2018004315A JP6947045B2 JP 6947045 B2 JP6947045 B2 JP 6947045B2 JP 2018004315 A JP2018004315 A JP 2018004315A JP 2018004315 A JP2018004315 A JP 2018004315A JP 6947045 B2 JP6947045 B2 JP 6947045B2
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connection
stator
portions
phase coil
terminal
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JP2019126142A (en
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裕紀 藤井
裕紀 藤井
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Denso Corp
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Denso Corp
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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
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Windings For Motors And Generators (AREA)

Description

本発明は、ステータ及びステータの製造方法に関する。 The present invention relates to a stator and a method for manufacturing the stator.

従来、モータを駆動源として電動でブレーキ動作を実施する電動ブレーキシステムが知られている（例えば特許文献１参照）。このような電動ブレーキシステムとして、例えばポンプ等の外部機構をモータの回転軸の出力側において直接又は間接的に駆動連結させることで駆動させて所望の液圧を発生させるようになっている。 Conventionally, there is known an electric brake system that electrically brakes using a motor as a drive source (see, for example, Patent Document 1). As such an electric brake system, for example, an external mechanism such as a pump is driven by being directly or indirectly driven and connected on the output side of the rotation shaft of the motor to generate a desired hydraulic pressure.

特開２０１６−１１４１３２号公報Japanese Unexamined Patent Publication No. 2016-114132

ところで、上記のような電動ブレーキシステムに用いられるモータのステータとしては、コイルが２系統に分けられ、例えば１系統が失陥しても残りの１系統のコイルを用いてロータが回転可能な冗長性を持たせものが採用されたり、冗長性が不要な場合（非冗長性の場合）にはコイルが１系統のみのステータが採用されたりすることがある。 By the way, as the stator of the motor used in the electric braking system as described above, the coil is divided into two systems, and for example, even if one system fails, the rotor can rotate using the remaining one system of coils. A stator with only one coil system may be adopted when a material having a property is adopted or when redundancy is not required (in the case of non-redundancy).

また、ステータのコイルとコイルへの通電を制御してモータ（ロータ）の駆動を制御する制御回路とを電気的に接続する際に、バスバー並びに接続ターミナルを用いる。このとき、非冗長の場合と冗長の場合とではコイルの接続態様やバスバーの数などが異なるため、接続ターミナルの構造も非冗長の場合と冗長の場合とで異なることとなっていた。そのため、ステータとしての部品加工費が増大する虞があった。 Further, when electrically connecting the coil of the stator and the control circuit that controls the energization of the coil and controls the drive of the motor (rotor), the bus bar and the connection terminal are used. At this time, since the coil connection mode and the number of bus bars are different between the non-redundant case and the redundant case, the structure of the connection terminal is also different between the non-redundant case and the redundant case. Therefore, there is a risk that the cost of processing parts as a stator will increase.

本発明は、上記課題を解決するためになされたものであって、その目的は、部品加工費を抑えられるステータ及びステータの製造方法を提供することにある。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a stator and a method for manufacturing a stator in which a component processing cost can be suppressed.

上記課題を解決するステータは、周方向に複数のティースを有する環状のステータコアと、前記ティースに巻回されるコイルと、前記コイルへの通電の制御を行う制御回路に対して導通を図るバスバーと、前記バスバーと前記コイルとを接続する接続ターミナルと、を備えたステータであって、前記接続ターミナルは、前記ステータコアの周方向に沿って長いターミナル本体部と、前記ターミナル本体部から延出して前記バスバーと接続可能なＭ個（但し、Ｍ≧２）の接続部と、を有し、前記Ｍ個の接続部の内のＮ個（但し、１≦Ｎ＜Ｍ）が前記バスバーと接続され、前記ターミナル本体部は、前記Ｍ個の接続部同士の間を繋ぐ部位が切断可能に構成される。 The stator that solves the above problems includes an annular stator core having a plurality of teeth in the circumferential direction, a coil wound around the teeth, and a bus bar that conducts conduction to a control circuit that controls energization of the coil. A stator including a connection terminal for connecting the bus bar and the coil, wherein the connection terminal extends along the circumferential direction of the stator core and extends from the terminal body. It has M (however, M ≧ 2) connecting portions that can be connected to the bus bar, and N of the M connecting portions (however, 1 ≦ N <M) are connected to the bus bar. The terminal main body is configured such that a portion connecting between the M connecting portions can be cut.

上記態様によれば、接続ターミナルのＭ個の接続部の内のＮ個がバスバーと接続されることで接続ターミナルとバスバーとの電気的接続を確保することができる。また、例えば接続ターミナルにおけるＭ個の接続部同士の間を繋ぐ部位が切断可能に構成されるため、例えば当該部位を切断して用いることで冗長性を有するステータの接続ターミナルとして利用することができ、非冗長性を有するステータ及び冗長性を有するステータの両方で共有することができ、部品加工費を抑えることができる。 According to the above aspect, the electrical connection between the connection terminal and the bus bar can be secured by connecting N of the M connection portions of the connection terminal to the bus bar. Further, for example, since the portion of the connection terminal connecting between the M connection portions is configured to be disconnectable, it can be used as a redundant stator connection terminal by cutting and using the portion, for example. , It can be shared by both the stator having non-redundancy and the stator having redundancy, and the component processing cost can be suppressed.

上記ステータにおいて、前記接続ターミナルは、前記バスバーと接続可能な前記接続部を３個有し、前記接続部の内の１個と前記バスバーが接続されることが好ましい。
上記態様によれば、接続ターミナルは、バスバーと接続可能な接続部を３個有し、接続部の内の１個とバスバーが接続されるため、接続ターミナルとバスバーとの電気的接続を確保することができる。 In the stator, it is preferable that the connection terminal has three connecting portions that can be connected to the bus bar, and one of the connecting portions is connected to the bus bar.
According to the above aspect, the connection terminal has three connection portions that can be connected to the bus bar, and one of the connection portions is connected to the bus bar, so that an electrical connection between the connection terminal and the bus bar is ensured. be able to.

上記ステータにおいて、前記Ｍ個の接続部は板状をなし、該Ｍ個の接続部の内で隣接する接続部同士が該接続部の板厚方向にずれて配設されることが好ましい。
上記態様によれば、Ｍ個の接続部は板状をなし、該Ｍ個の接続部の内で隣接する接続部同士が該接続部の板厚方向にずれて配設されるため、接続部同士の間を繋ぐ部位を認識しやすくでき、容易に切断することが可能となる。 In the stator, it is preferable that the M connecting portions have a plate shape, and the adjacent connecting portions in the M connecting portions are arranged so as to be displaced in the plate thickness direction of the connecting portions.
According to the above aspect, the M connecting portions have a plate shape, and the adjacent connecting portions in the M connecting portions are arranged so as to be displaced in the plate thickness direction of the connecting portions. It is possible to easily recognize the part connecting each other and easily cut it.

上記ステータにおいて、前記接続部は、前記ターミナル本体部の長手方向と直交する方向に延出するように構成されることが好ましい。
上記態様によれば、接続部は、前記ターミナル本体部の長手方向と直交する方向に延出するように構成されるため、バスバーとの接続を容易に行うことが可能となる。 In the stator, it is preferable that the connecting portion is configured to extend in a direction orthogonal to the longitudinal direction of the terminal main body portion.
According to the above aspect, since the connecting portion is configured to extend in a direction orthogonal to the longitudinal direction of the terminal main body portion, it is possible to easily connect to the bus bar.

上記ステータにおいて、前記Ｍ個の接続部は、全て同方向に延出することが好ましい。
上記態様によれば、Ｍ個の接続部は、全て同方向に延出するため、接続部による接続ターミナルの大型化を抑えることができる。 In the stator, it is preferable that all the M connecting portions extend in the same direction.
According to the above aspect, since all the M connecting portions extend in the same direction, it is possible to suppress an increase in the size of the connecting terminal due to the connecting portions.

上記ステータにおいて、前記ターミナル本体部は、前記接続部に対応する部位が他の部位よりも前記接続部の延出方向とは反対側に位置することが好ましい。
上記態様によれば、ターミナル本体部は、前記接続部に対応する部位が他の部位よりも前記接続部の延出方向とは反対側に位置する。すなわち、接続部に対応する部位をターミナル本体部の他の部位よりも接続部の延出方向とは反対側にオフセットされることとなる。このため、接続部の延出方向の長さを十分に確保した場合であってもターミナル本体部（前述の他の部位）からの延出量を抑えることができる。 In the stator, it is preferable that the portion corresponding to the connecting portion of the terminal main body is located on the side opposite to the extending direction of the connecting portion than the other portions.
According to the above aspect, in the terminal main body portion, the portion corresponding to the connecting portion is located on the side opposite to the extending direction of the connecting portion than the other portions. That is, the portion corresponding to the connecting portion is offset to the side opposite to the extending direction of the connecting portion with respect to the other portions of the terminal main body portion. Therefore, even when the length of the connecting portion in the extending direction is sufficiently secured, the amount of extension from the terminal main body portion (the other portion described above) can be suppressed.

上記ステータにおいて、前記接続部の板厚方向における厚さは、板状をなす前記ターミナル本体部の厚さよりも薄いことが好ましい。
上記態様によれば、接続部の板厚方向における厚さをターミナル本体部の厚さよりも薄いため、バスバーを溶接する際に接続部にバスバーを沿わせる際に接続部との干渉を抑えることができる。 In the stator, the thickness of the connecting portion in the plate thickness direction is preferably thinner than the thickness of the terminal body portion having a plate shape.
According to the above aspect, since the thickness of the connecting portion in the plate thickness direction is thinner than the thickness of the terminal main body portion, it is possible to suppress interference with the connecting portion when the bus bar is aligned with the connecting portion when welding the bus bar. can.

上記ステータにおいて、前記ティースは、６Ｌ個（但し、Ｌは正の整数）設けられ、前記コイルは、Ｕ相コイル、Ｖ相コイル及びＷ相コイルを有する第１の三相コイル群と、Ｘ相コイル、Ｙ相コイル及びＺ相コイルを有する第２の三相コイル群とを有し、前記Ｕ相コイルと前記Ｘ相コイルとが並列接続とされ、前記Ｖ相コイルと前記Ｙ相コイルとが並列接続され、前記Ｗ相コイルと前記Ｚ相コイルとが並列接続され、前記接続ターミナルは、前記Ｍ個の接続部同士の間を繋ぐ部位を切断することで前記各相コイルの並列接続を解除するように構成されることが好ましい。 In the stator, 6 L of the teeth (where L is a positive integer) are provided, and the coils are a first three-phase coil group having a U-phase coil, a V-phase coil, and a W-phase coil, and an X-phase. It has a second three-phase coil group having a coil, a Y-phase coil, and a Z-phase coil, the U-phase coil and the X-phase coil are connected in parallel, and the V-phase coil and the Y-phase coil are connected. The W-phase coil and the Z-phase coil are connected in parallel, and the connection terminal releases the parallel connection of the respective phase coils by cutting the portion connecting between the M connection portions. It is preferable that it is configured to do so.

上記態様によれば、接続ターミナルは、Ｍ個の接続部同士の間を繋ぐ部位を切断することで前記各相コイルの並列接続を解除するように構成される。これにより、接続ターミナルを例えば切断した状態で用いることで各相コイルの並列接続が解除されるため、コイルの接続態様の変更を抑えつつ冗長性を有するステータとして利用することができる。 According to the above aspect, the connection terminal is configured to release the parallel connection of the respective phase coils by cutting the portion connecting the M connection portions to each other. As a result, the parallel connection of each phase coil is released by using the connection terminal in a disconnected state, for example, so that it can be used as a stator having redundancy while suppressing a change in the connection mode of the coils.

上記課題を解決するステータの製造方法は、周方向に複数のティースを有する環状のステータコアと、前記ティースに巻回されるコイルと、前記コイルへの通電の制御を行う制御回路に対して導通を図るバスバーと、前記バスバーと前記コイルとを接続する接続ターミナルと、を備えたステータの製造方法であって、前記接続ターミナルは、前記ステータコアの周方向に沿って長いターミナル本体部と、前記ターミナル本体部から延出して前記バスバーと接続可能なＭ個（但し、Ｍ≧２）の接続部と、を有し、前記Ｍ個の接続部の内のＮ個（但し、１≦Ｎ＜Ｍ）が前記バスバーと接続され、前記ターミナル本体部は、前記Ｍ個の接続部同士の間を繋ぐ部位が切断可能に構成されるものであり、前記コイルを２系統で利用する場合に、前記ターミナル本体部の内で切断可能な前記Ｍ個の接続部同士の間を繋ぐ部位を切断する切断工程を有する。 A method for manufacturing a stator that solves the above problems is to conduct conduction to an annular stator core having a plurality of teeth in the circumferential direction, a coil wound around the teeth, and a control circuit that controls energization of the coils. A method for manufacturing a stator including a bus bar to be designed and a connection terminal for connecting the bus bar and the coil. The connection terminal is a terminal main body long along the circumferential direction of the stator core and the terminal main body. It has M (however, M ≧ 2) connecting parts that extend from the part and can be connected to the bus bar, and N of the M connecting parts (however, 1 ≦ N <M) The terminal main body is connected to the bus bar, and the portion connecting the M connecting portions is cuttable. When the coil is used in two systems, the terminal main body is used. It has a cutting step of cutting a portion connecting between the M connecting portions that can be cut within the above.

上記態様によれば、コイルを２系統で利用する場合に、ターミナル本体部の内で切断可能なＭ個の接続部同士の間を繋ぐ部位を切断する切断工程によって切断することで冗長性を有するステータの接続ターミナルとして使用することができ、部品加工費を抑えることができる。 According to the above aspect, when the coils are used in two systems, there is redundancy by cutting by a cutting step of cutting the portion connecting between the M connectable portions in the terminal main body. It can be used as a connection terminal for the stator, and parts processing costs can be reduced.

本発明のステータ及びステータの製造方法によれば、部品加工費が抑えられる。 According to the stator and the method for manufacturing the stator of the present invention, the parts processing cost can be suppressed.

一実施形態における非冗長ステータの斜視図。The perspective view of the non-redundant stator in one Embodiment. 同実施形態における非冗長ステータの斜視図。The perspective view of the non-redundant stator in the same embodiment. 同実施形態における冗長ステータの斜視図。The perspective view of the redundant stator in the same embodiment. 同実施形態における冗長ステータの斜視図。The perspective view of the redundant stator in the same embodiment. 同実施形態における非冗長ステータの接続ターミナルの斜視図。The perspective view of the connection terminal of the non-redundant stator in the same embodiment. 同実施形態における冗長ステータの接続ターミナルの斜視図。The perspective view of the connection terminal of the redundant stator in the same embodiment. 同実施形態における非冗長ステータのコイルの接続形態を説明するための説明図。The explanatory view for demonstrating the connection form of the coil of the non-redundant stator in the same embodiment. 同実施形態における冗長ステータのコイルの接続形態を説明するための説明図。The explanatory view for demonstrating the connection form of the coil of the redundant stator in the same embodiment. 接続ターミナルの製造方法を説明するための説明図。Explanatory drawing for demonstrating the manufacturing method of a connection terminal.

以下、ステータの一実施形態について説明する。本実施形態のステータは、例えば電動ブレーキシステムのモータに用いられるものである。電動ブレーキシステムのモータとしては非冗長モータと冗長モータのいずれかが用いられている。冗長モータは、ステータのコイルが２系統に分けられ、１系統が失陥しても残りの１系統でロータを回転させることが可能なモータである。一方、非冗長モータは、ステータのコイルが１系統とされる。以下の説明において、非冗長モータで用いられるステータを第１ステータと言い、冗長モータで用いられるステータを第２ステータと言う。 Hereinafter, one embodiment of the stator will be described. The stator of this embodiment is used, for example, in a motor of an electric brake system. As the motor of the electric brake system, either a non-redundant motor or a redundant motor is used. The redundant motor is a motor in which the coil of the stator is divided into two systems, and even if one system fails, the rotor can be rotated by the remaining one system. On the other hand, the non-redundant motor has one system of stator coils. In the following description, the stator used in the non-redundant motor is referred to as the first stator, and the stator used in the redundant motor is referred to as the second stator.

（第１ステータ）
図１及び図２に示すように、非冗長モータで用いられる第１ステータ１０は、ステータコア１１と、コイル１２と、３つの接続ターミナル１３〜１５と、３つのバスバー１６ａ〜１６ｃとを有する。 (1st stator)
As shown in FIGS. 1 and 2, the first stator 10 used in the non-redundant motor has a stator core 11, a coil 12, three connection terminals 13 to 15, and three bus bars 16a to 16c.

ステータコア１１は、周方向略等角度間隔に複数のティース１１ａを有する。ティース１１ａは、本例では１２個設けられる。各ティース１１ａには前記コイル１２が巻回されている。 The stator core 11 has a plurality of teeth 11a at substantially equal angular intervals in the circumferential direction. Twelve teeth 11a are provided in this example. The coil 12 is wound around each tooth 11a.

コイル１２は、インバータ１７（図７参照）により接続ターミナル１３〜１５及びバスバー１６ａ〜１６ｃを介して通電される。本例では各ティース１１ａに個別に集中巻にてコイル１２が巻回されている。 The coil 12 is energized by the inverter 17 (see FIG. 7) via the connection terminals 13 to 15 and the bus bars 16a to 16c. In this example, the coil 12 is individually wound around each tooth 11a by a concentrated winding.

図７に示すように、コイル１２は、例えばＵ相コイル１２Ｕａ，１２Ｕｂ、Ｖ相コイル１２Ｖａ，１２Ｖｂ及びＷ相コイル１２Ｗａ，１２Ｗｂを有する第１の三相コイル群と、Ｘ相コイル１２Ｘａ，１２Ｘｂ、Ｙ相コイル１２Ｙａ，１２Ｙｂ及びＺ相コイル１２Ｚａ，１２Ｚｂを有する第２の三相コイル群とを有する。 As shown in FIG. 7, the coils 12 include, for example, a first three-phase coil group having U-phase coils 12Ua, 12Ub, V-phase coils 12Va, 12Vb, and W-phase coils 12Wa, 12Wb, and X-phase coils 12Xa, 12Xb. It has a second three-phase coil group having a Y-phase coil 12Ya, 12Yb and a Z-phase coil 12Za, 12Zb.

図７に示すように、Ｕ相コイル１２Ｕａは、その一方の端部がＵ相コイル１２Ｕｂの一方の端部と直列に接続される。Ｖ相コイル１２Ｖａは、その一方の端部がＶ相コイル１２Ｖｂの一方の端部と直列に接続される。Ｗ相コイル１２Ｗａは、その一方の端部がＷ相コイル１２Ｗｂの一方の端部と直列に接続される。Ｘ相コイル１２Ｘａは、その一方の端部がＸ相コイル１２Ｘｂの一方の端部と直列に接続される。Ｙ相コイル１２Ｙａは、その一方の端部がＹ相コイル１２Ｙｂの一方の端部と直列に接続される。Ｚ相コイル１２Ｚａは、その一方の端部がＺ相コイル１２Ｚｂの一方の端部と直列に接続される。 As shown in FIG. 7, one end of the U-phase coil 12Ua is connected in series with one end of the U-phase coil 12Ub. One end of the V-phase coil 12Va is connected in series with one end of the V-phase coil 12Vb. One end of the W-phase coil 12Wa is connected in series with one end of the W-phase coil 12Wb. One end of the X-phase coil 12Xa is connected in series with one end of the X-phase coil 12Xb. One end of the Y-phase coil 12Ya is connected in series with one end of the Y-phase coil 12Yb. One end of the Z-phase coil 12Za is connected in series with one end of the Z-phase coil 12Zb.

また、各Ｕ相コイル１２Ｕａ，１２ＵｂとＸ相コイル１２Ｘａ，１２Ｘｂとが並列接続され、Ｖ相コイル１２Ｖａ，１２ＶｂとＹ相コイル１２Ｙａ，１２Ｙｂとが並列接続され、Ｗ相コイル１２Ｗａ，１２ＷｂとＺ相コイル１２Ｚａ，１２Ｚｂとが並列接続される。Ｕ相コイル１２Ｕｂの他方の端部、Ｖ相コイル１２Ｖｂの他方の端部並びにＷ相コイル１２Ｗｂの他方の端部は、Ｙ結線の中性点として互いに接続されている。Ｘ相コイル１２Ｘｂの他方の端部、Ｙ相コイル１２Ｙｂの他方の端部並びにＺ相コイル１２Ｚｂの他方の端部は、Ｙ結線の中性点として互いに接続されている。 Further, the U-phase coils 12Ua and 12Ub and the X-phase coils 12Xa and 12Xb are connected in parallel, the V-phase coils 12Va and 12Vb and the Y-phase coils 12Ya and 12Yb are connected in parallel, and the W-phase coils 12Wa and 12Wb and the Z-phase are connected in parallel. The coils 12Za and 12Zb are connected in parallel. The other end of the U-phase coil 12Ub, the other end of the V-phase coil 12Vb, and the other end of the W-phase coil 12Wb are connected to each other as neutral points of the Y connection. The other end of the X-phase coil 12Xb, the other end of the Y-phase coil 12Yb, and the other end of the Z-phase coil 12Zb are connected to each other as neutral points of the Y connection.

図５に示すように、接続ターミナル１３は、周方向に沿って長いターミナル本体部１３ａと、ターミナル本体部１３ａから延出する３つの接続部１３ｂ〜１３ｄとを有する。接続ターミナル１４は、周方向に沿って長いターミナル本体部１４ａと、ターミナル本体部１４ａから延出する３つの接続部１４ｂ〜１４ｄとを有する。接続ターミナル１５は、周方向に沿って長いターミナル本体部１５ａと、ターミナル本体部１５ａから延出する３つの接続部１５ｂ〜１５ｄとを有する。 As shown in FIG. 5, the connection terminal 13 has a terminal main body 13a that is long along the circumferential direction, and three connection portions 13b to 13d that extend from the terminal main body 13a. The connection terminal 14 has a terminal main body 14a that is long along the circumferential direction, and three connection portions 14b to 14d that extend from the terminal main body 14a. The connection terminal 15 has a terminal main body portion 15a that is long along the circumferential direction, and three connection portions 15b to 15d that extend from the terminal main body portion 15a.

ターミナル本体部１３ａ，１４ａ，１５ａは、周方向に沿って多角形状をなすように構成される。ターミナル本体部１３ａ，１４ａ，１５ａは、それぞれ長さが異なり、例えばターミナル本体部１３ａ、ターミナル本体部１４ａ、ターミナル本体部１５ａの順で長さが長くなっている。接続ターミナル１３は、接続ターミナル１４，１５よりも径方向内側に配置される。接続ターミナル１４は、接続ターミナル１５よりも径方向内側に配置される。つまり接続ターミナル１５は、他の接続ターミナル１３，１４よりも径方向外側に配置される。 The terminal main bodies 13a, 14a, and 15a are configured to form a polygonal shape along the circumferential direction. The lengths of the terminal main bodies 13a, 14a, and 15a are different from each other, and the lengths are increased in the order of, for example, the terminal main body 13a, the terminal main body 14a, and the terminal main body 15a. The connection terminal 13 is arranged radially inside the connection terminals 14 and 15. The connection terminal 14 is arranged radially inside the connection terminal 15. That is, the connection terminal 15 is arranged radially outside the other connection terminals 13 and 14.

ターミナル本体部１３ａは、長手方向における一端側に第１の三相コイル群のＵ相コイル１２Ｕａの他方の端部が接続され、長手方向における他端側に第２の三相コイル群のＸ相コイル１２Ｘａの一端が接続される。ターミナル本体部１４ａは、長手方向における一端側に第１の三相コイル群のＶ相コイル１２Ｖａの一端が接続され、長手方向における他端側に第２の三相コイル群のＹ相コイル１２Ｙａの一端が接続される。ターミナル本体部１５ａは、長手方向における一端側に第１の三相コイル群のＷ相コイル１２Ｗａの一端が接続され、長手方向における他端側に第２の三相コイル群のＺ相コイル１２Ｚａの一端が接続される。 The terminal body 13a is connected to the other end of the U-phase coil 12Ua of the first three-phase coil group on one end side in the longitudinal direction, and the X-phase of the second three-phase coil group is connected to the other end side in the longitudinal direction. One end of the coil 12Xa is connected. In the terminal body 14a, one end of the V-phase coil 12Va of the first three-phase coil group is connected to one end side in the longitudinal direction, and the Y-phase coil 12Ya of the second three-phase coil group is connected to the other end side in the longitudinal direction. One end is connected. In the terminal body 15a, one end of the W-phase coil 12Wa of the first three-phase coil group is connected to one end side in the longitudinal direction, and the Z-phase coil 12Za of the second three-phase coil group is connected to the other end side in the longitudinal direction. One end is connected.

図５に示すように、接続ターミナル１３の接続部１３ｂ〜１３ｄは、ターミナル本体部１３ａの長手方向の略中央寄りに略等間隔で設けられる。接続部１３ｃが中央に設けられ、接続部１３ｃを基準としてターミナル本体部１３ａの長手方向一方寄り（図５において左側）に接続部１３ｂが設けられ、接続部１３ｃを基準としてターミナル本体部１３ａの長手方向他方寄り（図５において右側）に接続部１３ｄが設けられる。接続部１３ｂ〜１３ｄは、ターミナル本体部１３ａの長手方向と直交する方向であって径方向と直交する方向に延出するようになっている。各接続部１３ｂ〜１３ｄは同方向に延出する。各接続部１３ｂ〜１３ｄの厚みＴ１は、ターミナル本体部１３ａの厚みＴ２よりも薄くなっている。 As shown in FIG. 5, the connection portions 13b to 13d of the connection terminal 13 are provided at substantially equal intervals near the center in the longitudinal direction of the terminal main body portion 13a. The connection portion 13c is provided in the center, and the connection portion 13b is provided on one side of the terminal main body 13a in the longitudinal direction (left side in FIG. 5) with reference to the connection 13c, and the length of the terminal main body 13a is provided with reference to the connection 13c. A connecting portion 13d is provided on the opposite side of the direction (on the right side in FIG. 5). The connecting portions 13b to 13d extend in a direction orthogonal to the longitudinal direction of the terminal main body portion 13a and orthogonal to the radial direction. Each connecting portion 13b to 13d extends in the same direction. The thickness T1 of each of the connecting portions 13b to 13d is thinner than the thickness T2 of the terminal main body portion 13a.

また、接続部１３ｃは、隣接する他の接続部１３ｂ，１３ｄから板厚方向にずれて配設される。より具体的には、ターミナル本体部１３ａの内の接続部１３ｃと接続部１３ｂとを接続する部位１３ｘが板厚方向にずれるように傾斜し、ターミナル本体部１３ａの内の接続部１３ｃと接続部１３ｄとを接続する部位１３ｙが板厚方向に対して傾斜することで接続部１３ｃが他の接続部１３ｂ，１３ｄから板厚方向にずれて配設される。 Further, the connecting portion 13c is arranged so as to be displaced in the plate thickness direction from the other adjacent connecting portions 13b and 13d. More specifically, the portion 13x connecting the connecting portion 13c and the connecting portion 13b in the terminal main body 13a is inclined so as to be displaced in the plate thickness direction, and the connecting portion 13c and the connecting portion in the terminal main body 13a are inclined. Since the portion 13y connecting the 13d is inclined with respect to the plate thickness direction, the connecting portion 13c is arranged so as to be displaced from the other connecting portions 13b and 13d in the plate thickness direction.

また、ターミナル本体部１３ａの内で略中央に位置して各接続部１３ｂ〜１３ｄと対応する部位１３ｚは、ターミナル本体部１３ａの他の部位と比較して各接続部１３ｂ〜１３ｄの延出方向とは反対側にオフセットするように構成される。 Further, the portion 13z located substantially in the center of the terminal body portion 13a and corresponding to each connection portion 13b to 13d is in the extending direction of each connection portion 13b to 13d as compared with other parts of the terminal body portion 13a. It is configured to be offset to the opposite side of.

接続ターミナル１４の接続部１４ｂ〜１４ｄは、ターミナル本体部１４ａの長手方向の略中央寄りに略等間隔で設けられる。接続部１４ｃが中央に設けられ、接続部１４ｃを基準としてターミナル本体部１４ａの長手方向一方寄り（図５において左側）に接続部１４ｂが設けられ、接続部１４ｃを基準としてターミナル本体部１４ａの長手方向他方寄り（図５において右側）に接続部１４ｄが設けられる。接続部１４ｂ〜１４ｄは、ターミナル本体部１４ａの長手方向と直交する方向であって径方向と直交する方向に延出するようになっている。各接続部１４ｂ〜１４ｄは同方向に延出する。各接続部１４ｂ〜１４ｄの厚みは、接続部１３ｂ〜１３ｄの厚みＴ１と略同一の厚みを有し、ターミナル本体部１４ａの厚み（＝ターミナル本体部１３ａの厚みＴ２）よりも薄くなっている。 The connection portions 14b to 14d of the connection terminal 14 are provided at substantially equal intervals near the center of the terminal main body portion 14a in the longitudinal direction. The connection portion 14c is provided in the center, and the connection portion 14b is provided on one side in the longitudinal direction (left side in FIG. 5) with reference to the connection portion 14c, and the length of the terminal main body portion 14a is provided with reference to the connection portion 14c. A connecting portion 14d is provided on the opposite side of the direction (on the right side in FIG. 5). The connecting portions 14b to 14d extend in a direction orthogonal to the longitudinal direction of the terminal main body portion 14a and orthogonal to the radial direction. Each connecting portion 14b to 14d extends in the same direction. The thickness of each of the connecting portions 14b to 14d has substantially the same thickness as the thickness T1 of the connecting portions 13b to 13d, and is thinner than the thickness of the terminal main body portion 14a (= the thickness T2 of the terminal main body portion 13a).

また、接続部１４ｃは、隣接する他の接続部１４ｂ，１４ｄから板厚方向にずれて配設される。より具体的には、ターミナル本体部１４ａの内の接続部１４ｃと接続部１４ｂとを接続する部位１４ｘが板厚方向にずれるように傾斜し、ターミナル本体部１４ａの内の接続部１４ｃと接続部１４ｄとを接続する部位１４ｙが板厚方向に対して傾斜することで接続部１４ｃが他の接続部１４ｂ，１４ｄから板厚方向にずれて配設される。 Further, the connecting portion 14c is arranged so as to be displaced in the plate thickness direction from the other adjacent connecting portions 14b and 14d. More specifically, the portion 14x connecting the connecting portion 14c and the connecting portion 14b in the terminal main body 14a is inclined so as to be displaced in the plate thickness direction, and the connecting portion 14c and the connecting portion in the terminal main body 14a are inclined. Since the portion 14y connecting the 14d is inclined with respect to the plate thickness direction, the connecting portion 14c is arranged so as to be displaced from the other connecting portions 14b and 14d in the plate thickness direction.

また、ターミナル本体部１４ａの内で略中央に位置して各接続部１４ｂ〜１４ｄと対応する部位１４ｚは、ターミナル本体部１４ａの他の部位と比較して各接続部１４ｂ〜１４ｄの延出方向とは反対側にオフセットするように構成される。 Further, the portion 14z located substantially in the center of the terminal body portion 14a and corresponding to each connection portion 14b to 14d is in the extending direction of each connection portion 14b to 14d as compared with other portions of the terminal body portion 14a. It is configured to be offset to the opposite side of.

接続ターミナル１５の接続部１５ｂ〜１５ｄは、ターミナル本体部１５ａの長手方向の略中央寄りに略等間隔で設けられる。接続部１５ｃが中央に設けられ、接続部１５ｃを基準としてターミナル本体部１５ａの長手方向一方寄り（図５において左側）に接続部１５ｂが設けられ、接続部１５ｃを基準としてターミナル本体部１５ａの長手方向他方寄り（図５において右側）に接続部１５ｄが設けられる。接続部１５ｂ〜１５ｄは、ターミナル本体部１５ａの長手方向と直交する方向であって径方向と直交する方向に延出するようになっている。各接続部１５ｂ〜１５ｄは同方向に延出する。各接続部１５ｂ〜１５ｄの厚みは、接続部１３ｂ〜１３ｄの厚みＴ１と略同一の厚みを有し、ターミナル本体部１５ａの厚み（＝ターミナル本体部１３ａの厚みＴ２）よりも薄くなっている。 The connection portions 15b to 15d of the connection terminal 15 are provided at substantially equal intervals near the center of the terminal main body portion 15a in the longitudinal direction. The connection portion 15c is provided in the center, and the connection portion 15b is provided on one side in the longitudinal direction (left side in FIG. 5) with respect to the connection portion 15c, and the length of the terminal main body portion 15a is provided with reference to the connection portion 15c. A connecting portion 15d is provided on the opposite side of the direction (on the right side in FIG. 5). The connecting portions 15b to 15d extend in a direction orthogonal to the longitudinal direction of the terminal main body portion 15a and orthogonal to the radial direction. Each connecting portion 15b to 15d extends in the same direction. The thickness of each of the connecting portions 15b to 15d has substantially the same thickness as the thickness T1 of the connecting portions 13b to 13d, and is thinner than the thickness of the terminal main body portion 15a (= the thickness T2 of the terminal main body portion 13a).

また、接続部１５ｃは、隣接する他の接続部１５ｂ，１５ｄから板厚方向にずれて配設される。より具体的には、ターミナル本体部１５ａの内の接続部１５ｃと接続部１５ｂとを接続する部位１５ｘが板厚方向にずれるように傾斜し、ターミナル本体部１５ａの内の接続部１５ｃと接続部１５ｄとを接続する部位１５ｙが板厚方向に対して傾斜することで接続部１５ｃが他の接続部１５ｂ，１５ｄから板厚方向にずれて配設される。 Further, the connecting portion 15c is arranged so as to be displaced in the plate thickness direction from the other adjacent connecting portions 15b and 15d. More specifically, the portion 15x connecting the connecting portion 15c and the connecting portion 15b in the terminal main body 15a is inclined so as to be displaced in the plate thickness direction, and the connecting portion 15c and the connecting portion in the terminal main body 15a are inclined. Since the portion 15y connecting the 15d is inclined with respect to the plate thickness direction, the connecting portion 15c is arranged so as to be displaced from the other connecting portions 15b and 15d in the plate thickness direction.

また、ターミナル本体部１５ａの内で略中央に位置して各接続部１５ｂ〜１５ｄと対応する部位１５ｚは、ターミナル本体部１５ａの他の部位と比較して各接続部１５ｂ〜１５ｄの延出方向とは反対側にオフセットするように構成される。 Further, the portion 15z located substantially in the center of the terminal body portion 15a and corresponding to each connection portion 15b to 15d is in the extending direction of each connection portion 15b to 15d as compared with other portions of the terminal body portion 15a. It is configured to be offset to the opposite side of.

上述した構成の各接続ターミナル１３〜１５は、中央に位置する接続部１３ｃ，１４ｃ，１５ｃを基準として左右対称形状をなすように構成される。
図２及び図７に示すように、各接続ターミナル１３〜１５の３つの接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの内の１つの接続部１３ｃ，１４ｃ，１５ｃには、バスバー１６ａ〜１６ｃの一端がそれぞれ接続される。バスバー１６ａ〜１６ｃと接続部１３ｃ，１４ｃ，１５ｃとの接続方法として、ＴＩＧ（Tungsten Inert Gas）溶接などによる接続が挙げられるが、これに限らない。 Each of the connection terminals 13 to 15 having the above-described configuration is configured to have a symmetrical shape with reference to the connection portions 13c, 14c, and 15c located at the center.
As shown in FIGS. 2 and 7, the bus bars 16a to one of the three connection portions 13b to 13d, 14b to 14d, and 15b to 15d of the connection terminals 13 to 15 are connected to the bus bars 16a to 15c. One ends of 16c are connected to each other. Examples of the connection method between the bus bars 16a to 16c and the connecting portions 13c, 14c, 15c include, but are not limited to, connection by TIG (Tungsten Inert Gas) welding or the like.

図７に示すようにバスバー１６ａ〜１６ｃの他端は制御回路としてのインバータ１７の出力端子に直接又は間接的に接続されている。
インバータ１７は、モータＥＣＵ１８と接続されており、モータＥＣＵ１８により制御されることで各コイル１２に供給される電流のタイミングが調整されることとなる。 As shown in FIG. 7, the other end of the bus bars 16a to 16c is directly or indirectly connected to the output terminal of the inverter 17 as a control circuit.
The inverter 17 is connected to the motor ECU 18, and the timing of the current supplied to each coil 12 is adjusted by being controlled by the motor ECU 18.

（第２ステータ）
図３及び図４に示すように、冗長モータで用いられる第２ステータ２０は、第１ステータ１０と同様に、ステータコア１１と、コイル１２と、接続ターミナル２１〜２６と、バスバー２７ａ〜２７ｆとを有する。第２ステータ２０と第１ステータ１０との主な相違点は接続ターミナル並びにバスバーであり、その相違点を中心に説明し、第１ステータ１０と同一の構成には同じ番号を付して説明の一部又は全部を割愛する。 (2nd stator)
As shown in FIGS. 3 and 4, the second stator 20 used in the redundant motor has the stator core 11, the coil 12, the connection terminals 21 to 26, and the bus bars 27a to 27f, similarly to the first stator 10. Have. The main differences between the second stator 20 and the first stator 10 are the connection terminal and the bus bar, and the differences will be mainly described, and the same configuration as the first stator 10 will be described with the same numbers. Omit some or all.

図６に示すように、接続ターミナル２１〜２６は、周方向に長いターミナル本体部２１ａ〜２６ａと、各ターミナル本体部２１ａ〜２６ａから延出する１つの接続部２１ｂ〜２６ｂとを有する。 As shown in FIG. 6, the connection terminals 21 to 26 have terminal main bodies 21a to 26a that are long in the circumferential direction, and one connection portion 21b to 26b that extends from each terminal main body 21a to 26a.

接続ターミナル２１〜２６の内の接続ターミナル２１，２２は、接続ターミナル１３の接続部１３ｃを含み、接続部１３ｃと接続部１３ｂとの間を接続する部位１３ｘ（図５参照）並びに接続部１３ｃと接続部１３ｄとの間を接続する部位１３ｙ（図５参照）とを切断することで得られるものである。すなわち、接続ターミナル２１の接続部２１ｂは接続ターミナル１３の接続部１３ｂに相当し、接続ターミナル２２の接続部２２ｂは接続ターミナル１３の接続部１３ｄに相当する。 The connection terminals 21 and 22 of the connection terminals 21 to 26 include the connection portion 13c of the connection terminal 13, and the portion 13x (see FIG. 5) and the connection portion 13c that connect between the connection portion 13c and the connection portion 13b. It is obtained by disconnecting the portion 13y (see FIG. 5) that connects to the connecting portion 13d. That is, the connection portion 21b of the connection terminal 21 corresponds to the connection portion 13b of the connection terminal 13, and the connection portion 22b of the connection terminal 22 corresponds to the connection portion 13d of the connection terminal 13.

接続ターミナル２１〜２６の内の接続ターミナル２３，２４は、接続ターミナル１４の接続部１４ｃを含み、接続部１４ｃと接続部１４ｂとの間を接続する部位１４ｘ（図５参照）並びに接続部１４ｃと接続部１４ｄとの間を接続する部位１４ｙ（図５参照）とを切断することで得られるものである。すなわち、接続ターミナル２３の接続部２３ｂは接続ターミナル１４の接続部１４ｂに相当し、接続ターミナル２４の接続部２４ｂは接続ターミナル１４の接続部１４ｄに相当する。 The connection terminals 23 and 24 of the connection terminals 21 to 26 include the connection portion 14c of the connection terminal 14, and the portion 14x (see FIG. 5) connecting between the connection portion 14c and the connection portion 14b and the connection portion 14c. It is obtained by cutting the portion 14y (see FIG. 5) that connects with the connecting portion 14d. That is, the connection portion 23b of the connection terminal 23 corresponds to the connection portion 14b of the connection terminal 14, and the connection portion 24b of the connection terminal 24 corresponds to the connection portion 14d of the connection terminal 14.

接続ターミナル２１〜２６の内の接続ターミナル２５，２６は、接続ターミナル１５の接続部１５ｃを含み、接続部１５ｃと接続部１５ｂとの間を接続する部位１５ｘ（図５参照）並びに接続部１５ｃと接続部１５ｄとの間を接続する部位１５ｙ（図５参照）とを切断することで得られるものである。すなわち、接続ターミナル２５の接続部２５ｂは接続ターミナル１５の接続部１５ｂに相当し、接続ターミナル２６の接続部２６ｂは接続ターミナル１５の接続部１５ｄに相当する。 The connection terminals 25 and 26 among the connection terminals 21 to 26 include the connection portion 15c of the connection terminal 15, and the connecting portion 15x (see FIG. 5) and the connection portion 15c connecting between the connection portion 15c and the connection portion 15b. It is obtained by cutting the portion 15y (see FIG. 5) that connects with the connecting portion 15d. That is, the connection portion 25b of the connection terminal 25 corresponds to the connection portion 15b of the connection terminal 15, and the connection portion 26b of the connection terminal 26 corresponds to the connection portion 15d of the connection terminal 15.

図８に示すように、接続ターミナル２１のターミナル本体部２１ａには、Ｕ相コイル１２Ｕａの他方の端部が接続される。接続ターミナル２２のターミナル本体部２２ａには、Ｘ相コイル１２Ｘａの他方の端部が接続される。接続ターミナル２３のターミナル本体部２３ａには、Ｖ相コイル１２Ｖａの他方の端部が接続される。接続ターミナル２４のターミナル本体部２４ａには、Ｙ相コイル１２Ｙａの他方の端部が接続される。接続ターミナル２５のターミナル本体部２５ａには、Ｗ相コイル１２Ｗａの他方の端部が接続される。接続ターミナル２６のターミナル本体部２６ａには、Ｚ相コイル１２Ｚａの他方の端部が接続される。 As shown in FIG. 8, the other end of the U-phase coil 12Ua is connected to the terminal body 21a of the connection terminal 21. The other end of the X-phase coil 12Xa is connected to the terminal body 22a of the connection terminal 22. The other end of the V-phase coil 12V is connected to the terminal body 23a of the connection terminal 23. The other end of the Y-phase coil 12Ya is connected to the terminal body 24a of the connection terminal 24. The other end of the W-phase coil 12Wa is connected to the terminal body 25a of the connection terminal 25. The other end of the Z-phase coil 12Za is connected to the terminal body 26a of the connection terminal 26.

図８に示すように、各接続ターミナル２１〜２６の接続部２１ｂ〜２６ｂには、バスバー２７ａ〜２７ｆの一端がそれぞれ接続される。バスバー２７ａ〜２７ｆと接続部２１ｂ〜２６ｂとの接続方法として、ＴＩＧ（Tungsten Inert Gas）溶接などによる接続が挙げられるが、これに限らない。 As shown in FIG. 8, one end of the bus bars 27a to 27f is connected to the connection portions 21b to 26b of the connection terminals 21 to 26, respectively. Examples of the connection method between the bus bars 27a to 27f and the connection portions 21b to 26b include, but are not limited to, connection by TIG (Tungsten Inert Gas) welding or the like.

図８に示すようにバスバー２７ａ〜２７ｃの他端は制御回路としての第１インバータ２８の出力端子に直接又は間接的に接続されている。また、バスバー２７ｄ〜２７ｆの他端は制御回路としての第２インバータ２９の出力端子に直接又は間接的に接続されている。 As shown in FIG. 8, the other end of the bus bars 27a to 27c is directly or indirectly connected to the output terminal of the first inverter 28 as a control circuit. Further, the other ends of the bus bars 27d to 27f are directly or indirectly connected to the output terminal of the second inverter 29 as a control circuit.

各インバータ２８，２９は、モータＥＣＵ３０と接続されており、モータＥＣＵ３０により制御されることで各コイル１２に供給される電流のタイミングが調整されることとなる。 Each of the inverters 28 and 29 is connected to the motor ECU 30, and the timing of the current supplied to each coil 12 is adjusted by being controlled by the motor ECU 30.

次に、上記のように構成された接続ターミナルの製造方法を説明する。
図９に示すように、例えばタフピッチ鋼を母材とする板材からプレス成形によって長さの異なる非冗長用ステータに用いられる３つの接続ターミナルを形成する。そして、例えば、非冗長用ステータに用いる場合にはそのまま利用する。また、冗長用ステータに用いる場合には、３つの接続ターミナルを切断工程において切断（カット）して６つの接続ターミナルを形成する。 Next, a manufacturing method of the connection terminal configured as described above will be described.
As shown in FIG. 9, for example, three connection terminals used for non-redundant stators having different lengths are formed by press forming from a plate material using tough pitch steel as a base material. Then, for example, when it is used for a non-redundant stator, it is used as it is. When used as a redundant stator, the three connection terminals are cut by cutting in the cutting step to form six connection terminals.

上述したように、接続ターミナルの製造工程においてコイルが１系統である非冗長用ステータに用いる場合と、コイルが２系統である冗長用ステータに用いる場合とで切断工程の有無のみで共有することができるため、部品加工費が抑えられている。 As described above, in the manufacturing process of the connection terminal, the case where the coil is used for the non-redundant stator having one system and the case where the coil is used for the redundant stator having two systems can be shared only by the presence or absence of the cutting process. Because it can be done, the parts processing cost is suppressed.

本実施形態の効果を記載する。
（１）接続ターミナル１３〜１５の接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの内の１個がバスバー１６ａ〜１６ｃと接続されることで接続ターミナル１３〜１５とバスバー１６ａ〜１６ｃとの電気的接続を確保することができる。また、例えば接続ターミナル１３〜１５における接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄ同士の間を繋ぐ部位１３ｘ，１３ｙ，１４ｘ，１４ｙ，１５ｘ，１５ｙが切断可能に構成されるため、例えば当該部位を切断して用いることで冗長性を有する第２ステータ２０の接続ターミナル２１〜２６として利用することができ、非冗長性を有する第１ステータ１０及び冗長性を有する第２ステータ２０の両方で共有することができ、部品加工費を抑えることができる。 The effect of this embodiment will be described.
(1) One of the connection portions 13b to 13d, 14b to 14d, and 15b to 15d of the connection terminals 13 to 15 is connected to the bus bars 16a to 16c to connect the connection terminals 13 to 15 and the bus bars 16a to 16c. An electrical connection can be secured. Further, for example, the portions 13x, 13y, 14x, 14y, 15x, 15y connecting the connection portions 13b to 13d, 14b to 14d, and 15b to 15d in the connection terminals 13 to 15 are configured to be disconnectable. It can be used as a connection terminal 21 to 26 of the second stator 20 having redundancy by cutting the portion, and can be used in both the first stator 10 having non-redundancy and the second stator 20 having redundancy. It can be shared and parts processing costs can be reduced.

（２）各接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは板状をなし、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの内で隣接する接続部同士が該接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの板厚方向にずれて配設されるため、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄ同士の間を繋ぐ部位１３ｘ，１３ｙ，１４ｘ，１４ｙ，１５ｘ，１５ｙを認識しやすくでき、容易に切断することが可能となる。 (2) Each of the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d has a plate shape, and the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d that are adjacent to each other are connected to the connecting portions 13b to 13b to 15d. Since the 13d, 14b to 14d, and 15b to 15d are arranged so as to be offset in the plate thickness direction, the portions 13x, 13y, 14x, 14y, and 15x connecting the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d are connected to each other. , 15y can be easily recognized and can be easily cut.

（３）各接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは、ターミナル本体部１３ａ，１４ａ，１５ａの長手方向と直交する方向に延出するように構成されるため、バスバー１６ａ〜１６ｃとの接続を容易に行うことが可能となる。 (3) Since each of the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d is configured to extend in a direction orthogonal to the longitudinal direction of the terminal main body portions 13a, 14a, 15a, the bus bars 16a to 16c and the bus bars 16a to 16c. Can be easily connected.

（４）各接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは、全て同方向に延出するため、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄによる接続ターミナル１３〜１５の大型化を抑えることができる。 (4) Since each of the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d extend in the same direction, the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d increase the size of the connecting terminals 13 to 15. Can be suppressed.

（５）ターミナル本体部１３ａ，１４ａ，１５ａは、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄに対応する部位１３ｚ，１４ｚ，１５ｚが他の部位よりも接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの延出方向とは反対側に位置する。すなわち、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄに対応する部位１３ｚ，１４ｚ，１５ｚをターミナル本体部１３ａ，１４ａ，１５ａの他の部位よりも接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの延出方向とは反対側にオフセットされることとなる。このため、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの延出方向の長さを十分に確保した場合であってもターミナル本体部１３ａ，１４ａ，１５ａ（前述の他の部位）からの延出量（突出量）を抑えることができる。 (5) In the terminal main body portions 13a, 14a, 15a, the portions 13z, 14z, 15z corresponding to the connecting portions 13b to 13d, 14b to 14d, 15b to 15d are the connecting portions 13b to 13d, 14b to 14d more than the other portions. , 15b to 15d are located on the opposite side of the extending direction. That is, the portions 13z, 14z, 15z corresponding to the connecting portions 13b to 13d, 14b to 14d, 15b to 15d are connected to the connecting portions 13b to 13d, 14b to 14d, 15b more than the other portions of the terminal main body portions 13a, 14a, 15a. It will be offset to the side opposite to the extension direction of ~ 15d. Therefore, even when the lengths of the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d in the extending direction are sufficiently secured, the connecting portions 13a, 14a, and 15a (other parts described above) can be used. The amount of extension (protrusion amount) can be suppressed.

（６）接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの板厚方向における厚みＴ１をターミナル本体部１３ａ，１４ａ，１５ａの厚みＴ２よりも薄いため、バスバー１６ａ〜１６ｃを溶接する際に接続部にバスバー１６ａ〜１６ｃを沿わせる際に接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄとの干渉を抑えることができる。 (6) Since the thickness T1 of the connecting portions 13b to 13d, 14b to 14d, 15b to 15d in the plate thickness direction is thinner than the thickness T2 of the terminal main body portions 13a, 14a, 15a, they are connected when the bus bars 16a to 16c are welded. Interference with the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d can be suppressed when the bus bars 16a to 16c are placed along the portions.

（７）接続ターミナル１３〜１５は、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄ同士の間を繋ぐ部位１３ｘ，１３ｙ，１４ｘ，１４ｙ，１５ｘ，１５ｙを切断することで各相コイルの並列接続を解除するように構成される。これにより、接続ターミナル１３〜１５を例えば切断した状態で用いることで各相コイルの並列接続が解除されるため、コイル１２の接続態様の変更を抑えつつ冗長性を有する第２ステータ２０として利用することができる。 (7) The connection terminals 13 to 15 are connected in parallel with each phase coil by cutting the portions 13x, 13y, 14x, 14y, 15x, 15y connecting the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d. It is configured to disconnect. As a result, the parallel connection of each phase coil is released by using the connection terminals 13 to 15 in a disconnected state, for example, so that the second stator 20 is used as a redundant second stator 20 while suppressing a change in the connection mode of the coil 12. be able to.

（８）コイル１２を２系統で利用する場合に、ターミナル本体部１３ａ，１４ａ，１５ａの内で切断可能な接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄ同士の間を繋ぐ部位１３ｘ，１３ｙ，１４ｘ，１４ｙ，１５ｘ，１５ｙを切断する切断工程によって切断することで冗長性を有する第２ステータ２０の接続ターミナル２１〜２６として使用することができ、部品加工費を抑えることができる。 (8) When the coil 12 is used in two systems, the portions 13x, 13y that connect between the connection portions 13b to 13d, 14b to 14d, 15b to 15d that can be cut within the terminal main body portions 13a, 14a, 15a. , 14x, 14y, 15x, 15y can be used as connection terminals 21 to 26 of the second stator 20 having redundancy by cutting by the cutting step, and the component processing cost can be suppressed.

なお、上記実施形態は、以下のように変更してもよい。
・上記実施形態では、各接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは板状をなし、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの内で隣接する接続部同士が該接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの板厚方向にずれて配設したが、ずれずに配設する構成を採用してもよい。 The above embodiment may be changed as follows.
In the above embodiment, the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d have a plate shape, and the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d that are adjacent to each other are connected to each other. Although the portions 13b to 13d, 14b to 14d, and 15b to 15d are arranged so as to be offset in the plate thickness direction, a configuration may be adopted in which the portions 13b to 13d, 14b to 14d, and 15b to 15d are arranged so as not to be displaced.

・上記実施形態では、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは、ターミナル本体部１３ａ，１４ａ，１５ａの長手方向と直交する方向に延出するように構成したが、これに限らない。例えば接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄがターミナル本体部１３ａ，１４ａ，１５ａから延出する構成であればその方向は適宜変更してもよい。 -In the above embodiment, the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d are configured to extend in a direction orthogonal to the longitudinal direction of the terminal main body portions 13a, 14a, and 15a, but the present invention is not limited to this. .. For example, if the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d extend from the terminal main body portions 13a, 14a, and 15a, their directions may be changed as appropriate.

・上記実施形態では、各接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄは、全て同方向に延出する構成としたが、これに限らず、他の方向に延出する構成であってもよい。 -In the above embodiment, the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d are all configured to extend in the same direction, but the present invention is not limited to this, and the configurations extend in other directions. May be good.

・上記実施形態では、ターミナル本体部１３ａ，１４ａ，１５ａは、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄに対応する部位１３ｚ，１４ｚ，１５ｚが他の部位よりも接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの延出方向とは反対側に位置する構成としたが、これに限らない。つまり、部位１３ｚ，１４ｚ，１５ｚがターミナル本体部１３ａ，１４ａ，１５ａの他の部位と延出方向において同じ位置となる構成を採用してもよい。 -In the above embodiment, in the terminal main body portions 13a, 14a, 15a, the portions 13z, 14z, 15z corresponding to the connecting portions 13b to 13d, 14b to 14d, 15b to 15d are the connecting portions 13b to 13d, as compared with the other portions. The configuration is such that it is located on the side opposite to the extending direction of 14b to 14d and 15b to 15d, but the present invention is not limited to this. That is, a configuration may be adopted in which the portions 13z, 14z, and 15z are located at the same positions in the extending direction as the other portions of the terminal main body portions 13a, 14a, and 15a.

・上記実施形態では、接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの板厚方向における厚みＴ１をターミナル本体部１３ａ，１４ａ，１５ａの厚みＴ２よりも薄い構成としたが、厚みＴ１と厚みＴ２とを略同等としてもよい。 In the above embodiment, the thickness T1 of the connecting portions 13b to 13d, 14b to 14d, and 15b to 15d in the plate thickness direction is thinner than the thickness T2 of the terminal main body portions 13a, 14a, and 15a. It may be substantially equivalent to T2.

・上記実施形態では、第１ステータ１０の各接続ターミナル１３〜１５において接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄの内の中央の接続部１３ｃ，１４ｃ，１５ｃとバスバー１６ａ〜１６ｃとを接続する構成としたが、他の接続部１３ｂ，１３ｄ，１４ｂ，１４ｄ，１５ｂ，１５ｄとバスバー１６ａ〜１６ｃとを接続する構成を採用してもよい。また、各接続ターミナル１３〜１５の１つの接続部１３ｃ，１４ｃ，１５ｃとバスバー１６ａ〜１６ｃとを接続することとしたが、例えば２つの接続部とバスバーとを接続する構成を採用してもよい。 -In the above embodiment, in each of the connection terminals 13 to 15 of the first stator 10, the central connection portions 13c, 14c, 15c and the bus bars 16a to 16c of the connection portions 13b to 13d, 14b to 14d, 15b to 15d are connected. Although the configuration is such that they are connected, a configuration in which the other connecting portions 13b, 13d, 14b, 14d, 15b, 15d and the bus bars 16a to 16c are connected may be adopted. Further, although it is decided to connect one connection portion 13c, 14c, 15c of each connection terminal 13 to 15 and the bus bars 16a to 16c, for example, a configuration in which two connection portions and the bus bar are connected may be adopted. ..

・上記実施形態では、非冗長用である第１ステータ１０の各接続ターミナル１３〜１５においてそれぞれ３つの接続部１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄを有する構成としたが、例えば１つの接続部（例えば１３ｄ，１４ｄ，１５ｄ）を省略して２つの接続部（１３ｂ，１３ｃ，１４ｂ，１４ｃ，１５ｂ，１５ｃ）を有する構成を採用してもよい。また、１つの接続ターミナル１３〜１５において４つ以上の接続部を有する構成を採用してもよい。 -In the above embodiment, each connection terminal 13 to 15 of the first stator 10 for non-redundancy has three connection portions 13b to 13d, 14b to 14d, and 15b to 15d, respectively. However, for example, one connection is provided. A configuration having two connecting portions (13b, 13c, 14b, 14c, 15b, 15c) may be adopted by omitting the portions (for example, 13d, 14d, 15d). Further, a configuration having four or more connection portions in one connection terminal 13 to 15 may be adopted.

・上記実施形態では、接続ターミナル１３〜１５，２１〜２６のターミナル本体部１３ａ〜１５ａ，２１ａ〜２６ａを周方向に沿った多角形状をなすように構成したが、これに限らず、円弧形状をなすように構成してもよい。 -In the above embodiment, the terminal main bodies 13a to 15a and 21a to 26a of the connection terminals 13 to 15, 21 to 26 are configured to form a polygonal shape along the circumferential direction, but the present invention is not limited to this. It may be configured to be an eggplant.

・上記実施形態では、コイルの結線方法としてＹ結線を採用したが、デルタ結線を採用してもよい。
・上記実施形態では、ティース１１ａ及びコイル１２の数を１２としたが、これに限らず、６Ｌ個（但しＬは正の整数）以上であれば適宜変更してもよい。 -In the above embodiment, Y connection is adopted as the coil connection method, but delta connection may be adopted.
-In the above embodiment, the number of teeth 11a and coils 12 is set to 12, but the number is not limited to this, and may be appropriately changed as long as it is 6 L or more (where L is a positive integer).

・上記実施形態並びに各変形例は適宜組み合わせてもよい。 -The above embodiment and each modification may be combined as appropriate.

１０…第１ステータ（ステータ）、１１…ステータコア、１１ａ…ティース、１２…コイル、１２Ｕａ，１２Ｕｂ…Ｕ相コイル、１２Ｖａ，１２Ｖｂ…Ｖ相コイル、１２Ｗａ，Ｗｂ…Ｗ相コイル、１２Ｘａ，１２Ｘｂ…Ｘ相コイル、１２Ｙａ，１２Ｙｂ…Ｙ相コイル、１２Ｚａ，１２Ｚｂ…Ｚ相コイル、１３〜１５…接続ターミナル、１３ａ，１４ａ，１５ａ…ターミナル本体部、１３ｂ〜１３ｄ，１４ｂ〜１４ｄ，１５ｂ〜１５ｄ…接続部、１６ａ〜１６ｃ…バスバー、１７…インバータ（制御回路）、２０…第２ステータ（ステータ）。 10 ... 1st stator (stator), 11 ... stator core, 11a ... teeth, 12 ... coil, 12Ua, 12Ub ... U-phase coil, 12Va, 12Vb ... V-phase coil, 12Wa, Wb ... W-phase coil, 12Xa, 12Xb ... X Phase coil, 12Ya, 12Yb ... Y phase coil, 12Za, 12Zb ... Z phase coil, 13 to 15 ... Connection terminal, 13a, 14a, 15a ... Terminal body, 13b to 13d, 14b to 14d, 15b to 15d ... Connection , 16a to 16c ... Bus bar, 17 ... Inverter (control circuit), 20 ... Second stator (stator).

Claims (9)

周方向に複数のティースを有する環状のステータコアと、
前記ティースに巻回されるコイルと、
前記コイルへの通電の制御を行う制御回路に対して導通を図るバスバーと、
前記バスバーと前記コイルとを接続する接続ターミナルと、
を備えたステータであって、
前記接続ターミナルは、前記ステータコアの周方向に沿って長いターミナル本体部と、前記ターミナル本体部から延出して前記バスバーと接続可能なＭ個（但し、Ｍ≧２）の接続部と、を有し、
前記Ｍ個の接続部の内のＮ個（但し、１≦Ｎ＜Ｍ）が前記バスバーと接続され、
前記ターミナル本体部は、前記Ｍ個の接続部同士の間を繋ぐ部位が切断可能に構成されることを特徴とするステータ。 An annular stator core with multiple teeth in the circumferential direction,
The coil wound around the teeth and
A bus bar that conducts conduction to the control circuit that controls the energization of the coil,
A connection terminal that connects the bus bar and the coil,
It is a stator equipped with
The connection terminal has a terminal main body portion that is long along the circumferential direction of the stator core, and M connection portions (provided that M ≧ 2) that extend from the terminal main body portion and can be connected to the bus bar. ,
N of the M connecting portions (however, 1 ≦ N <M) are connected to the bus bar.
The terminal main body is a stator characterized in that a portion connecting the M connecting portions is cuttable. 前記接続ターミナルは、前記バスバーと接続可能な前記接続部を３個有し、
前記接続部の内の１個と前記バスバーが接続されることを特徴とする請求項１に記載のステータ。 The connection terminal has three connection portions that can be connected to the bus bar.
The stator according to claim 1, wherein one of the connecting portions is connected to the bus bar. 前記Ｍ個の接続部は板状をなし、該Ｍ個の接続部の内で隣接する接続部同士が該接続部の板厚方向にずれて配設されることを特徴とする請求項１又は２に記載のステータ。 1. 2. The stator according to 2. 前記接続部は、前記ターミナル本体部の長手方向と直交する方向に延出するように構成されることを特徴とする請求項１〜３のいずれか１項に記載のステータ。 The stator according to any one of claims 1 to 3, wherein the connecting portion is configured to extend in a direction orthogonal to the longitudinal direction of the terminal main body portion. 前記Ｍ個の接続部は、全て同方向に延出することを特徴とする請求項４に記載のステータ。 The stator according to claim 4, wherein all the M connecting portions extend in the same direction. 前記ターミナル本体部は、前記接続部に対応する部位が他の部位よりも前記接続部の延出方向とは反対側に位置することを特徴とする請求項５に記載のステータ。 The stator according to claim 5, wherein the terminal main body portion has a portion corresponding to the connecting portion located on a side opposite to the extending direction of the connecting portion with respect to other portions. 前記接続部の板厚方向における厚さは、板状をなす前記ターミナル本体部の厚さよりも薄いことを特徴とする請求項３又は請求項３を引用する請求項４〜６のいずれか１項に記載のステータ。 3. The stator described in. 前記ティースは、６Ｌ個（但し、Ｌは正の整数）設けられ、
前記コイルは、Ｕ相コイル、Ｖ相コイル及びＷ相コイルを有する第１の三相コイル群と、Ｘ相コイル、Ｙ相コイル及びＺ相コイルを有する第２の三相コイル群とを有し、
前記Ｕ相コイルと前記Ｘ相コイルとが並列接続とされ、前記Ｖ相コイルと前記Ｙ相コイルとが並列接続され、前記Ｗ相コイルと前記Ｚ相コイルとが並列接続され、
前記接続ターミナルは、前記Ｍ個の接続部同士の間を繋ぐ部位を切断することで前記各相コイルの並列接続を解除するように構成されることを特徴とする請求項１〜７のいずれか１項に記載のステータ。 6L of the teeth (where L is a positive integer) are provided.
The coil has a first three-phase coil group having a U-phase coil, a V-phase coil and a W-phase coil, and a second three-phase coil group having an X-phase coil, a Y-phase coil and a Z-phase coil. ,
The U-phase coil and the X-phase coil are connected in parallel, the V-phase coil and the Y-phase coil are connected in parallel, and the W-phase coil and the Z-phase coil are connected in parallel.
Any of claims 1 to 7, wherein the connection terminal is configured to release the parallel connection of the respective phase coils by cutting a portion connecting the M connection portions to each other. The stator according to item 1. 周方向に複数のティースを有する環状のステータコアと、
前記ティースに巻回されるコイルと、
前記コイルへの通電の制御を行う制御回路に対して導通を図るバスバーと、
前記バスバーと前記コイルとを接続する接続ターミナルと、
を備えたステータの製造方法であって、
前記接続ターミナルは、前記ステータコアの周方向に沿って長いターミナル本体部と、前記ターミナル本体部から延出して前記バスバーと接続可能なＭ個（但し、Ｍ≧２）の接続部と、を有し、前記Ｍ個の接続部の内のＮ個（但し、１≦Ｎ＜Ｍ）が前記バスバーと接続され、前記ターミナル本体部は、前記Ｍ個の接続部同士の間を繋ぐ部位が切断可能に構成されるものであり、
前記コイルを２系統で利用する場合に、前記ターミナル本体部の内で切断可能な前記Ｍ個の接続部同士の間を繋ぐ部位を切断する切断工程を有することを特徴とするステータの製造方法。 An annular stator core with multiple teeth in the circumferential direction,
The coil wound around the teeth and
A bus bar that conducts conduction to the control circuit that controls the energization of the coil,
A connection terminal that connects the bus bar and the coil,
It is a manufacturing method of a stator equipped with
The connection terminal has a terminal main body portion that is long along the circumferential direction of the stator core, and M connection portions (provided that M ≧ 2) that extend from the terminal main body portion and can be connected to the bus bar. , N of the M connecting portions (however, 1 ≦ N <M) are connected to the bus bar, and the terminal main body portion can be cut at a portion connecting between the M connecting portions. It is composed and
A method for manufacturing a stator, which comprises a cutting step of cutting a portion connecting between the M connecting portions that can be cut in the terminal main body when the coil is used in two systems.
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