JP7062921B2 - Manufacturing method of stator core - Google Patents

Manufacturing method of stator core Download PDF

Info

Publication number
JP7062921B2
JP7062921B2 JP2017218228A JP2017218228A JP7062921B2 JP 7062921 B2 JP7062921 B2 JP 7062921B2 JP 2017218228 A JP2017218228 A JP 2017218228A JP 2017218228 A JP2017218228 A JP 2017218228A JP 7062921 B2 JP7062921 B2 JP 7062921B2
Authority
JP
Japan
Prior art keywords
stator
engaging
tooth portion
teeth
yoke
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2017218228A
Other languages
Japanese (ja)
Other versions
JP2019092252A (en
Inventor
貴大 園田
裕希 梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Aisin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd, Aisin Corp filed Critical Aisin Seiki Co Ltd
Priority to JP2017218228A priority Critical patent/JP7062921B2/en
Priority to CN201880070816.8A priority patent/CN111295817B/en
Priority to PCT/JP2018/040524 priority patent/WO2019093205A1/en
Priority to DE112018005461.6T priority patent/DE112018005461T5/en
Publication of JP2019092252A publication Critical patent/JP2019092252A/en
Application granted granted Critical
Publication of JP7062921B2 publication Critical patent/JP7062921B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
    • 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
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • 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
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles

Landscapes

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

Description

本発明は、環状のヨークの内周に複数のティース部が形成されたステータピースを積層したステータコアの製造方法に関する。 The present invention relates to a method for manufacturing a stator core in which a stator piece having a plurality of tooth portions formed on the inner circumference of an annular yoke is laminated.

ステータコアとして特許文献１には、ヨークコアと、このヨークコアに対して分割されるティースコアと、ティースコアに外嵌しコイルが巻回されるボビンとを備えており、ボビンに対するコイルの巻回の後に、ティースコアをヨークコアに組み付ける技術が記載されている。 As a stator core , Patent Document 1 includes a yoke core, a tee score divided with respect to the yoke core, and a bobbin that is fitted around the tee score and around which a coil is wound. Later, a technique for assembling the tee score to the yoke core is described.

特許文献１の技術では、ティースコアをヨークコアに装着する構成であるため、例えば、ティースコアがヨークコアに固定された構成と比較して、コイルを巻回するためのツールスペースをティースコアの近傍に確保する必要がない。また、この特許文献１の技術では、ティースの先端形状の設計制約がなくなるため、静粛なモータ設計が可能となる。 In the technique of Patent Document 1, since the tee score is mounted on the yoke core, for example, the tool space for winding the coil is located in the vicinity of the tee score as compared with the configuration in which the tee score is fixed to the yoke core. There is no need to secure it. Further, in the technique of Patent Document 1, since the design restriction of the tip shape of the tooth is eliminated, a quiet motor design becomes possible.

特開２０１３－１１８７４９号公報Japanese Unexamined Patent Publication No. 2013-118749

しかしながら、特許文献１の構成では、ティースコアがヨークコアに対して支持される構成であるため、各ティースコアの先端位置の精度が低下し易いものである。 However, in the configuration of Patent Document 1, since the tee score is supported with respect to the yoke core, the accuracy of the tip position of each tee score tends to decrease.

また、特許文献１の構成では、ティースコアと、ヨークコアと、ボビンと有し、これらを個別に組み付けることになるため、部品点数が増大するだけでなく、組み立て工程数も増大し、生産性が悪化する観点からも改善の余地があった。 Further, in the configuration of Patent Document 1, since the tea score, the yoke core, and the bobbin are provided and these are assembled individually, not only the number of parts increases, but also the number of assembly steps increases, and the productivity increases. There was room for improvement from the perspective of deterioration.

このような理由から、ティース部の先端位置の精度を低下させず、部品点数の増大を招くことがなく、コイルの巻回も容易に行えるステータコアの製造方法が求められる。 For this reason, there is a demand for a method for manufacturing a stator core that does not reduce the accuracy of the tip position of the tooth portion, does not increase the number of parts, and can easily wind the coil.

本発明のステータコアの製造方法の特徴は、環状の第１ヨーク部の内周に係脱自在に支持される複数の第１係合ティース部と、前記第１ヨーク部の内周に一体形成される複数の第１固定ティース部と、の少なくとも２組のティース部を有する第１ステータピースを形成する第１ステータピース形成工程と、
環状の第２ヨーク部の内周に係脱自在に支持される複数の第２係合ティース部と、前記第２ヨーク部の内周に一体形成される複数の第２固定ティース部と、の少なくとも２組のティース部を有する第２ステータピースを形成する第２ステータピース形成工程と、
複数の前記第１ステータピースと、複数の前記第２ステータピースとを積層し、前記第１係合ティース部と前記第２固定ティース部とを積層方向で一体化すると共に、前記第１固定ティース部と前記第２係合ティース部とを積層方向で一体化する一体化工程と、
前記第１固定ティース部に前記第２係合ティース部が積層状態で一体化し、且つ、前記第２固定ティース部に前記第１係合ティース部を積層状態で一体化した状態で分離し、前記第１固定ティース部と前記第２係合ティース部が積層された第１ステータ部と、前記第２固定ティース部と前記第１係合ティース部が積層された第２ステータ部と得る分離工程と、
前記分離工程の後において積層状態で一体化している前記第１固定ティース部と前記第２係合ティース部、及び、積層状態で一体化している前記第２固定ティース部と前記第１係合ティース部の何れか少なくとも一方に導線を巻回するコイル部形成工程と、
前記第１ステータ部と、前記第２ステータ部とを積層方向で重ね合わせると共に、この重ね合わせにより前記第１係合ティース部を前記第１ヨーク部に係合させ、前記第２係合ティース部を前記第２ヨーク部に係合させる係合連結工程とを有する点にある。 A feature of the method for manufacturing a stator core of the present invention is that a plurality of first engaging teeth portions that are detachably supported on the inner circumference of the annular first yoke portion are integrally formed on the inner circumference of the first yoke portion. A first stator piece forming step of forming a first stator piece having a plurality of first fixed tooth portions and at least two sets of tooth portions.
A plurality of second engaging teeth portions that are detachably supported on the inner circumference of the annular second yoke portion, and a plurality of second fixed teeth portions that are integrally formed on the inner circumference of the second yoke portion. A second stator piece forming step of forming a second stator piece having at least two sets of teeth portions,
The plurality of the first stator pieces and the plurality of the second stator pieces are laminated, and the first engaging tooth portion and the second fixed tooth portion are integrated in the stacking direction, and the first fixed tooth portion is integrated. An integration step of integrating the portion and the second engaging tooth portion in the stacking direction,
The second engaging tooth portion is integrated with the first fixed tooth portion in a laminated state, and the first engaging tooth portion is separated with the second fixed tooth portion in a laminated state. A separation step for obtaining a first stator portion in which the first fixed tooth portion and the second engaging tooth portion are laminated, and a second stator portion in which the second fixed tooth portion and the first engaging tooth portion are laminated. ,
The first fixed tooth portion and the second engaging tooth portion integrated in the laminated state after the separation step, and the second fixed tooth portion integrated with the first engaging tooth portion in the laminated state. A coil portion forming process in which a conducting wire is wound around at least one of the portions,
The first stator portion and the second stator portion are superposed in the stacking direction, and the first engaging teeth portion is engaged with the first yoke portion by this superposition, and the second engaging teeth portion is engaged. The point is to have an engagement connection step of engaging the second yoke portion.

この特徴構成によると、第１ステータピース形成工程により第１ステータピースを形成し、第２ステータピース形成工程により第２ステータピースを形成する。一体化工程では、複数の第１ステータピースを積層すると共に、複数の第２ステータピースを積層することで、第１固定ティース部と第２係合ティース部とを積層して一体化し、第１係合ティース部と第２固定ティース部とを積層して一体化する。分離工程では、第１ステータ部と第２ステータ部とを分離することになるが、全ての第１係合ティース部が第１ステータ部から分離することによりこの第１係合ティースが第２固定ティースと積層状態で一体化され、全ての第２係合ティース部が第２ステータ部から分離することによりこの第２係合ティースが第１固定ティース部に積層状態で一体化される。この分離工程を行うことにより、第１ステータ部の周方向で第１固定ティース部に隣接する空間が拡大する。これと同様に、第２ステータ部の周方向で第２固定ティース部に隣接する空間が拡大する。According to this characteristic configuration, the first stator piece is formed by the first stator piece forming step, and the second stator piece is formed by the second stator piece forming step. In the integration step, a plurality of first stator pieces are laminated and a plurality of second stator pieces are laminated so that the first fixed tooth portion and the second engaging tooth portion are laminated and integrated, and the first The engaging tooth portion and the second fixed tooth portion are laminated and integrated. In the separation step, the first stator portion and the second stator portion are separated, but the first engaging teeth portion is fixed to the second by separating all the first engaging teeth portions from the first stator portion. It is integrated with the teeth in a laminated state, and all the second engaging teeth portions are separated from the second stator portion, so that the second engaging teeth are integrated with the first fixed teeth portion in a laminated state. By performing this separation step, the space adjacent to the first fixed tooth portion is expanded in the circumferential direction of the first stator portion. Similarly, the space adjacent to the second fixed tooth portion expands in the circumferential direction of the second stator portion.

これにより、コイル部形成工程では、例えば、一体化した第１係合ティース部と第２固定ティース部との外周にコイル部を形成する場合には、第２ステータ部において一体化した第１係合ティース部と第２固定ティース部とに隣接する位置に第２係合ティース部と第１固定ティース部とが存在しないため、第２係合ティース部と第１係合ティース部に妨げられることなくコイル部に導線を巻回できる。第１ステータ部において、一体化した第２係合ティース部と第１固定ティース部との外周にコイル部を形成する場合も同様である。As a result, in the coil portion forming step, for example, when the coil portion is formed on the outer periphery of the integrated first engaging tooth portion and the second fixed tooth portion, the first engagement in the second stator portion is integrated. Since the second engaging teeth portion and the first fixed teeth portion do not exist at positions adjacent to the combined teeth portion and the second fixed teeth portion, they are obstructed by the second engaging teeth portion and the first engaging teeth portion. The lead wire can be wound around the coil without any problem. The same applies to the case where the coil portion is formed on the outer periphery of the integrated second engaging tooth portion and the first fixed tooth portion in the first stator portion.
次に、係合連結工程により第１ステータ部と、第２ステータ部とを積層方向で重ね合わせることで、第１係合ティース部を第１ステータ部に係合させ、第２係合ティース部を第２ステータ部に係合させステータコアを得ることができる。Next, by superimposing the first stator portion and the second stator portion in the stacking direction by the engagement connection step, the first engagement teeth portion is engaged with the first stator portion, and the second engagement teeth portion is engaged. Can be engaged with the second stator portion to obtain a stator core.

特に、第１係合ティース部と第２係合ティースとが分離可能な構造であるものの、それぞれ第２固定ティース部と第１固定ティース部に対して位置が決まるため、係合ティース部と固定ティース部からなる各ティース部の先端位置を決まった位置に高精度で保持できる。また、例えば、第１ステータピースでは、第１係合ティース部は、第１ステータピースのプレス加工時に形成することも可能であり、第２係合ティース部は、第２ステータピースのプレス加工時に形成することも可能であるので、部品点数の増大を抑制する。In particular, although the structure is such that the first engaging tooth portion and the second engaging tooth portion can be separated, the positions are determined with respect to the second fixed tooth portion and the first fixed tooth portion, respectively, so that the engaging teeth portion and the fixing are fixed. The tip position of each tooth portion consisting of the teeth portion can be held at a fixed position with high accuracy. Further, for example, in the first stator piece, the first engaging teeth portion can be formed at the time of pressing the first stator piece, and the second engaging teeth portion can be formed at the time of pressing the second stator piece. Since it can be formed, it suppresses an increase in the number of parts.
従って、ティース部の先端位置の精度を低下させず、部品点数の増大を招くことがなく、コイルの巻回も容易に行えるステータコアの製造方法が構成された。Therefore, a method for manufacturing a stator core has been constructed, in which the accuracy of the tip position of the tooth portion is not lowered, the number of parts is not increased, and the coil can be easily wound.

本発明に係るステータコアの製造方法により製造されたステータコアの構成として、前記第１係合ティース部と、前記第１固定ティース部とが、前記第１ヨーク部の内周において周方向で交互に配置されると共に、前記第２係合ティース部と、前記第２固定ティース部とが、前記第２ヨーク部の内周において周方向で交互に配置されても良い。 As a configuration of the stator core manufactured by the method for manufacturing a stator core according to the present invention, the first engaging teeth portion and the first fixed teeth portion are alternately arranged in the circumferential direction on the inner circumference of the first yoke portion. At the same time, the second engaging tooth portion and the second fixed tooth portion may be alternately arranged in the circumferential direction on the inner circumference of the second yoke portion.

これによると、例えば、第１ステータ部と第２ステータ部とが分離する状態において、積層状態の第１係合ティース部と第２固定ティース部とに導線を巻回できる。これと同様に、第１ステータ部と第２ステータ部とが分離する状態において、積層状態の第２係合ティース部と第１固定ティース部とに導線を巻回することも可能となる。つまり、本来、交互に配置されることで隣接する位置関係となるティース部の一方が存在しない状態でコイルを巻回できるため、コイルの巻回が容易となる。
これにより、この構成では交互に配置されたティース部の一方でも、双方でもティース部に容易に導線を巻回できる。 According to this, for example, in a state where the first stator portion and the second stator portion are separated, the conducting wire can be wound around the first engaging tooth portion and the second fixed tooth portion in the laminated state. Similarly, in a state where the first stator portion and the second stator portion are separated, it is possible to wind the conducting wire around the second engaging tooth portion and the first fixed tooth portion in the laminated state. That is, since the coil can be wound in a state where one of the teeth portions having an adjacent positional relationship by being arranged alternately does not exist, the coil can be easily wound.
As a result, in this configuration, the conductor can be easily wound around the teeth portion by either one of the alternately arranged teeth portions or both of them.

他の構成として、積層状態の前記第１固定ティース部と前記第２係合ティース部、又は、積層状態の前記第２固定ティース部と前記第１係合ティース部の一方にのみ前記導線を巻回したコイル部が形成され、
前記第１固定ティース部と前記第２係合ティース部とが前記導線の巻回対象であるものでは、前記第１ステータピースの積層数が、前記第２ステータピースの積層数以上であり、
前記第２固定ティース部と前記第１係合ティース部とが前記導線の巻回対象であるものでは、前記第２ステータピースの積層数が、前記第１ステータピースの積層数以上であっても良い。 As another configuration, the lead wire is wound only on one of the first fixed tooth portion and the second engaging tooth portion in the laminated state, or the second fixed tooth portion and the first engaging tooth portion in the laminated state. The rotated coil part is formed,
In the case where the first fixed tooth portion and the second engaging tooth portion are the winding targets of the conducting wire, the number of laminated first stator pieces is equal to or greater than the number of laminated second stator pieces.
In the case where the second fixed tooth portion and the first engaging tooth portion are the winding targets of the conducting wire, even if the number of laminated second stator pieces is equal to or larger than the number of laminated first stator pieces. good.

これによると、コイル部が形成されるものに第１固定ティース部が含まれる場合には、第１ステータピースの積層数を第２ステータピースの積層数以上に設定し、コイル部が形成されるものに第２固定ティース部が含まれる場合には、第２ステータピースの積層数を第１ステータピースの積層数以上に設定する。これにより、第１固定ティース部と第２固定ティース部のうちコイル部が形成される部位の積層数の増大により、コイル部を形成するための導線の巻回を安定して行える。 According to this, when the first fixed tooth portion is included in the coil portion formed, the number of laminated first stator pieces is set to be equal to or larger than the number of laminated second stator pieces, and the coil portion is formed. When the thing includes the second fixed tooth portion, the number of laminated second stator pieces is set to be equal to or greater than the number of laminated first stator pieces. As a result, by increasing the number of laminated parts of the first fixed tooth portion and the second fixed tooth portion where the coil portion is formed, the winding of the conducting wire for forming the coil portion can be stably performed.

他の構成として、前記第１ヨーク部において隣接する前記第１ステータピース同士を接合する積層面のカシメ部による接合力、及び、前記第２ヨーク部において隣接する前記第２ステータピース同士を接合する積層面のカシメ部による接合力と比較して、前記第１ヨーク部と前記第２ヨーク部との境界面におけるカシメ部による接合力を弱く設定しても良い。 As another configuration, the joining force by the caulking portion of the laminated surface for joining the adjacent first stator pieces to each other in the first yoke portion and the joining force to join the adjacent second stator pieces to each other in the second yoke portion. The joining force due to the caulking portion at the boundary surface between the first yoke portion and the second yoke portion may be set to be weaker than the joining force due to the caulking portion of the laminated surface.

これによると、第１ステータ部の第１ヨーク部の積層状態を維持すると共に、第２ステータ部の第２ヨーク部の積層状態を維持する状態で、第１ステータ部と第２ステータ部との分離を容易に行うことが可能となる。 According to this, the first stator portion and the second stator portion are in a state where the laminated state of the first yoke portion of the first stator portion is maintained and the laminated state of the second yoke portion of the second stator portion is maintained. Separation can be easily performed.

ステータコアの斜視図である。It is a perspective view of a stator core. ステータコアの横断平面図である。It is a cross-sectional plan view of a stator core. 磁性鋼板からプレス加工により抜き出した状態の第１ステータピースと第２ステータピースとの斜視図である。It is a perspective view of the 1st stator piece and the 2nd stator piece in the state of being extracted from a magnetic steel sheet by press working. 複数の第１ステータピースと複数の第２ステータピースと斜視図である。It is a perspective view with a plurality of first stator pieces and a plurality of second stator pieces. 重ね合わせ状態の第１ステータ部と第２ステータ部との斜視図である。It is a perspective view of the 1st stator part and the 2nd stator part in the superposed state. 分離状態の第１ステータ部と第２ステータ部との斜視図である。It is a perspective view of the 1st stator part and the 2nd stator part in the separated state. 分離状態の第２ステータ部にコイル部を形成した状態の斜視図である。It is a perspective view of the state which formed the coil part in the 2nd stator part in the separated state. 非係合状態にある第１係合ティース部の斜視図である。It is a perspective view of the 1st engaging tooth part in a non-engaged state. 非係合状態にある第２係合ティース部の斜視図である。It is a perspective view of the 2nd engaging tooth part in a disengaged state. 主極ティースとインシュレータとを示す斜視図である。It is a perspective view which shows the main pole tooth and an insulator. ステータコアの製造方法のフローチャートである。It is a flowchart of the manufacturing method of a stator core. カシメ部を示す断面図である。It is sectional drawing which shows the caulking part.

以下、本発明の実施形態を図面に基づいて説明する。
〔基本構成〕
図１、図２に示すように、軸芯Ｘを中心とする環状のヨークＡと、このヨークＡの内周からヨークＡの中心方向に突出する複数（実施形態では６つ）の主極ティースＢと、これと同様にヨークＡの中心方向に突出する複数（実施形態では６つ）の補極ティースＣとの２組のティースを備え、複数の主極ティースＢの各々にコイル部Ｄを備えてモータ用のステータコアＳＣが構成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Basic configuration]
As shown in FIGS. 1 and 2, an annular yoke A centered on the axis X and a plurality of (six in the embodiment) main pole teeth protruding from the inner circumference of the yoke A toward the center of the yoke A. It is provided with two sets of teeth of B and a plurality of (six in the embodiment) auxiliary pole teeth C protruding toward the center of the yoke A, and each of the plurality of main pole teeth B is provided with a coil portion D. A stator core SC for the motor is configured to provide.

このステータコアＳＣでは、ヨークＡの周方向で主極ティースＢと補極ティースＣとが交互に配置されている。コイル部Ｄは、複数の主極ティースＢの各々の外面に嵌め込まれるインシュレータ１に銅合金等の良導体で成る導線２を巻回して形成されている。 In this stator core SC, the main pole teeth B and the auxiliary pole teeth C are alternately arranged in the circumferential direction of the yoke A. The coil portion D is formed by winding a conducting wire 2 made of a good conductor such as a copper alloy around an insulator 1 fitted on the outer surface of each of a plurality of main pole teeth B.

このステータコアＳＣは、ブラシレスＤＣモータや、三相モータに用いられるものを想定しており、図２に示すように永久磁石を備えたロータＲがヨークＡの中心位置の軸芯Ｘと同軸芯で回転自在に配置される。 This stator core SC is assumed to be used for a brushless DC motor or a three-phase motor, and as shown in FIG. 2, the rotor R provided with a permanent magnet is coaxial with the shaft core X at the center position of the yoke A. Arranged rotatably.

〔ステータピース〕
図３～図５に示すように、ステータコアＳＣは、磁性鋼板をプレス加工して作り出される複数の第１ステータピース１０ａを積層した第１ステータ部１０と、磁性鋼板をプレス加工して作り出される複数の第２ステータピース２０ａを積層した第２ステータ部２０とを軸芯Ｘに沿う方向に重ね合わせて構成されている。 [Stator piece]
As shown in FIGS. 3 to 5, the stator core SC includes a first stator portion 10 in which a plurality of first stator pieces 10a produced by pressing a magnetic steel plate are laminated, and a plurality of stator core SCs produced by pressing a magnetic steel plate. The second stator portion 20 on which the second stator pieces 20a are laminated is overlapped with each other in the direction along the axis X.

〔第１ステータピース〕
図４に示すように、第１ステータピース１０ａは、軸芯Ｘを中心とする環状の第１ヨーク部１１を備えると共に、この第１ヨーク部１１の内周に係脱自在に備えられる複数の第１係合ティース部１２（主極ティースＢの具体例）と、第１ヨーク部の内周に一体形成された複数の第１固定ティース部１３（補極ティースＣの具体例）との２組のティース部が形成される。 [First stator piece]
As shown in FIG. 4, the first stator piece 10a includes an annular first yoke portion 11 centered on the axis X, and a plurality of pieces that are freely engaged and detached on the inner circumference of the first yoke portion 11. 2 of the first engaging tooth portion 12 (specific example of the main pole tooth B) and the plurality of first fixed tooth portions 13 (specific example of the auxiliary pole tooth C) integrally formed on the inner circumference of the first yoke portion. A set of teeth is formed.

第１係合ティース部１２は、図８に示すように、第１ヨーク部１１の内周の第１係合面１１ｃに対し、第１係合ティース部１２の基端の第１係合縁１２ｃが分離可能に係合している。この第１係合ティース部１２は、プレス加工の工程中に第１ヨーク部１１から分離した後に、この第１ヨーク部１１の内周の第１係合面１１ｃに対し第１係合ティース部１２の第１係合縁１２ｃを係合させている。 As shown in FIG. 8, the first engaging teeth portion 12 has a first engaging edge at the base end of the first engaging teeth portion 12 with respect to the first engaging surface 11c on the inner circumference of the first yoke portion 11. 12c is separably engaged. The first engaging teeth portion 12 is separated from the first yoke portion 11 during the press working process, and then the first engaging teeth portion is provided with respect to the first engaging surface 11c on the inner circumference of the first yoke portion 11. The first engaging edge 12c of the twelve is engaged.

〔第２ステータピース〕
図４に示すように、第２ステータピース２０ａは、軸芯Ｘを中心とする環状の第２ヨーク部２１を備えると共に、この第２ヨーク部２１の内周に一体形成された複数の第２固定ティース部２２（主極ティースＢの具体例）と、第２ヨーク部２１の内周に係脱自在に備えられる複数の第２係合ティース部２３（補極ティースＣの具体例）との２組のティース部を有している。 [Second stator piece]
As shown in FIG. 4, the second stator piece 20a includes an annular second yoke portion 21 centered on the axis X, and a plurality of second yoke portions integrally formed on the inner circumference of the second yoke portion 21. A fixed tooth portion 22 (specific example of the main pole tooth B) and a plurality of second engaging tooth portions 23 (specific example of the auxiliary pole tooth C) provided on the inner circumference of the second yoke portion 21 so as to be freely engaged and disengaged. It has two sets of teeth.

第２係合ティース部２３は、図９に示すように、第２ヨーク部２１の内周の第２係合面２１ｃに対し、第２係合ティース部２３の基端の第２係合縁２３ｃが分離可能に係脱している。この第２係合ティース部２３は、プレス加工の工程中に第２ヨーク部２１から分離した後に、この第２ヨーク部２１の内周の第２係合面２１ｃに対し第２係合ティース部２３の第２係合縁２３ｃを係合させている。 As shown in FIG. 9, the second engaging tooth portion 23 has a second engaging edge at the base end of the second engaging tooth portion 23 with respect to the second engaging surface 21c on the inner circumference of the second yoke portion 21. 23c is separably disengaged. The second engaging teeth portion 23 is separated from the second yoke portion 21 during the press working process, and then the second engaging teeth portion is provided with respect to the second engaging surface 21c on the inner circumference of the second yoke portion 21. The second engaging edge 23c of 23 is engaged.

〔ステータピースの各部の構成〕
ステータコアＳＣでは、図４、図５に示すように、第１係合ティース部１２と第２固定ティース部２２とが重なり合うことにより主極ティースＢを構成し、第１固定ティース部１３と第２係合ティース部２３とが重なり合うことにより補極ティースＣを構成する。 [Structure of each part of the stator piece]
In the stator core SC, as shown in FIGS. 4 and 5, the first engaging teeth portion 12 and the second fixed teeth portion 22 overlap each other to form the main pole teeth B, and the first fixed teeth portions 13 and the second The auxiliary pole teeth C are formed by overlapping the engaging teeth portion 23.

特に、このステータコアＳＣでは、図１２に示すように、第１ステータ部１０と第２ステータ部２０との何れも、凸部Ｅａと凹部Ｅｂとで成るカシメ部Ｅの嵌合により積層方向での接合状態を維持している。 In particular, in this stator core SC, as shown in FIG. 12, both the first stator portion 10 and the second stator portion 20 are fitted in the crimped portion E composed of the convex portion Ea and the concave portion Eb in the stacking direction. The joined state is maintained.

つまり、第１ステータ部１０と第２ステータ部２０とを重ね合わせることにより、複数の第１ステータピース１０ａがカシメ部Ｅにより接合し、複数の第２ステータピース２０ａがカシメ部Ｅにより接合する。さらに、第１ステータ部１０と第２ステータ部２０との境界に位置する第１ステータピース１０ａと第２ステータピース２０ａとがカシメ部Ｅにより接合状態となる。 That is, by superimposing the first stator portion 10 and the second stator portion 20, the plurality of first stator pieces 10a are joined by the caulking portion E, and the plurality of second stator pieces 20a are joined by the caulking portion E. Further, the first stator piece 10a and the second stator piece 20a located at the boundary between the first stator portion 10 and the second stator portion 20 are joined by the caulking portion E.

この接合状態において、補極ティースＣを構成する第１固定ティース部１３と第２係合ティース部２３とが一体化し、主極ティースＢを構成する第１係合ティース部１２と第２固定ティース部２２とが一体化する。 In this joined state, the first fixed teeth portion 13 and the second engaging teeth portion 23 constituting the auxiliary pole teeth C are integrated, and the first engaging teeth portion 12 and the second fixed teeth portion constituting the main pole teeth B are integrated. The unit 22 is integrated.

後述するステータコアＳＣの製造方法で説明するように、第１ステータ部１０と第２ステータ部２０とを重ね合せ、第１ステータピース１０ａと第２ステータピース２０ａとがカシメ部Ｅにより接合された後に、この第１ステータ部１０と第２ステータ部２０とを分離する。この分離の際に第１固定ティース部１３と第２係合ティース部２３との一体化を維持し、第１係合ティース部１２と第２固定ティース部２２との一体化を維持する状態で第１ステータ部１０と第２ステータ部２０との分離を容易にするため、第１ヨーク部１１と第２ヨーク部２１との境界面におけるカシメ部Ｅの接合力を弱く設定している。 As will be described later in the method of manufacturing the stator core SC, after the first stator portion 10 and the second stator portion 20 are overlapped with each other and the first stator piece 10a and the second stator piece 20a are joined by the caulking portion E. , The first stator portion 10 and the second stator portion 20 are separated. At the time of this separation, the integration of the first fixed tooth portion 13 and the second engaging tooth portion 23 is maintained, and the integration of the first engaging tooth portion 12 and the second fixed tooth portion 22 is maintained. In order to facilitate the separation between the first stator portion 10 and the second stator portion 20, the bonding force of the caulking portion E at the boundary surface between the first yoke portion 11 and the second yoke portion 21 is set to be weak.

具体的には、第１ステータピース１０ａの各部を積層方向で接合するための複数のカシメ部Ｅによる接合力と、第２ステータピース２０ａの各部を積層方向で接合するための複数のカシメ部Ｅによる接合力とは等しく設定している。これに対して、図１２の左部に示すように、第１ヨーク部１１と第２ヨーク部２１との境界面における複数のカシメ部Ｅの凸部Ｅａの一部を取り除く（形成しない）ことにより、結果として、第１ヨーク部１１と第２ヨーク部２１との境界面におけるカシメ部Ｅの接合力を弱く設定している。 Specifically, the joining force by the plurality of caulking portions E for joining each part of the first stator piece 10a in the stacking direction and the plurality of caulking portions E for joining each part of the second stator piece 20a in the stacking direction. It is set to be equal to the joining force by. On the other hand, as shown in the left portion of FIG. 12, a part of the convex portion Ea of the plurality of caulking portions E at the boundary surface between the first yoke portion 11 and the second yoke portion 21 is removed (not formed). As a result, the bonding force of the caulking portion E at the boundary surface between the first yoke portion 11 and the second yoke portion 21 is set to be weak.

また、このステータコアＳＣでは、複数の第２固定ティース部２２に複数の第１係合ティース部１２が積層した一体化物を主極ティースＢとしてこれに導線２を巻回しており、この巻回時における導線２の張力に起因する外力が第２固定ティース部２２に作用する。このように外力が作用する場合でも第２固定ティース部２２の姿勢を安定させるため、図６、図７に示すように第２ステータ部２０を構成する第２ステータピース２０ａの積層数（枚数）を、第１ステータ部１０を構成する第１ステータピース１０ａの積層数（枚数）より多くしている。これにより、第２固定ティース部２２の積層数が第１係合ティース部１２の積層数より多くなり、主極ティースＢの姿勢を安定させた状態で導線２を巻回することができる。 Further, in this stator core SC, the conductor 2 is wound around the integrated product in which the plurality of first engaging teeth portions 12 are laminated on the plurality of second fixed teeth portions 22 as the main pole teeth B. The external force caused by the tension of the conducting wire 2 in the second fixed tooth portion 22 acts on the second fixed tooth portion 22. In order to stabilize the posture of the second fixed teeth portion 22 even when an external force is applied in this way, the number (number of sheets) of the second stator pieces 20a constituting the second stator portion 20 as shown in FIGS. 6 and 7. Is larger than the number (number of sheets) of the first stator pieces 10a constituting the first stator portion 10. As a result, the number of layers of the second fixed teeth portion 22 becomes larger than the number of layers of the first engaging teeth portions 12, and the conductor 2 can be wound in a state where the posture of the main pole teeth B is stabilized.

〔ステータコアの製造方法〕
ステータコアＳＣを製造する場合には、図１１に示すようにプレス工程（＃０１）と、一体化工程（＃０２）と、分離工程（＃０３）と、コイル部形成工程（＃０４）と、係合連結工程（＃０５）と、がこの順序で行われる。 [Manufacturing method of stator core]
When manufacturing the stator core SC, as shown in FIG. 11, a pressing step (# 01), an integration step (# 02), a separation step (# 03), a coil portion forming step (# 04), and the like. The engagement connection step (# 05) is performed in this order.

プレス工程（＃０１）は、第１ステータピース１０ａを形成する第１ステータピース形成工程と、第２ステータピース２０ａを形成する第２ステータピース形成工程との工程の具体例である。 The pressing step (# 01) is a specific example of a step of forming a first stator piece 10a and a second stator piece forming step of forming the second stator piece 20a.

このプレス工程（＃０１）では、図３に示すように、磁性鋼板から複数の第１ステータピース１０ａと、複数の第２ステータピース２０ａとが作り出される。このように作り出された第１ステータピース１０ａは、図４に示すように第１ヨーク部１１と、複数の第１固定ティース部１３と、複数の第１係合ティース部１２とを備えている。また、第２ステータピース２０ａは、図４に示すように第２ヨーク部２１と、複数の第２固定ティース部２２と、複数の第２係合ティース部２３とを備えている。 In this pressing step (# 01), as shown in FIG. 3, a plurality of first stator pieces 10a and a plurality of second stator pieces 20a are produced from the magnetic steel plate. As shown in FIG. 4, the first stator piece 10a thus produced includes a first yoke portion 11, a plurality of first fixed teeth portions 13, and a plurality of first engaging teeth portions 12. .. Further, as shown in FIG. 4, the second stator piece 20a includes a second yoke portion 21, a plurality of second fixed teeth portions 22, and a plurality of second engaging teeth portions 23.

図は示していないが、このプレス工程（＃０１）において、例えば、第１ステータピース１０ａでは、ダイとパンチとで成る抜き型により、第１ヨーク部１１と第１固定ティース部１３とが一体形成した状態で作り出すと共に、これらと分離する状態で第１係合ティース部１２を作り出し、この後に可動パッド等により第１係合ティース部１２を第１ヨーク部１１に係合させている。 Although not shown in the figure, in this pressing process (# 01), for example, in the first stator piece 10a, the first yoke portion 11 and the first fixed tooth portion 13 are integrated by a punching die composed of a die and a punch. The first engaging teeth portion 12 is created in a formed state and separated from these, and then the first engaging teeth portion 12 is engaged with the first yoke portion 11 by a movable pad or the like.

尚、プレス工程（＃０１）において、第２ステータピース２０ａを作り出す際には、第１ステータピース１０ａと同様の作動により、第２係合ティース部２３を第２ヨーク部２１に係合させている。 In the pressing step (# 01), when the second stator piece 20a is produced, the second engaging tooth portion 23 is engaged with the second yoke portion 21 by the same operation as the first stator piece 10a. There is.

一体化工程（＃０２）では、図４に示すように、複数の第１ステータピース１０ａと、複数の第２ステータピース２０ａとを積層し軸芯Ｘに沿う方向に圧力を加えることにより、図５に示すように、これらの各部のカシメ部Ｅの凸部Ｅａと凹部Ｅｂとが嵌合した一体化物を作り出す。 In the integration step (# 02), as shown in FIG. 4, a plurality of first stator pieces 10a and a plurality of second stator pieces 20a are laminated and pressure is applied in a direction along the shaft core X. As shown in 5, the convex portion Ea and the concave portion Eb of the caulked portion E of each of these portions are fitted to create an integrated product.

この一体化物は、複数の第１ステータピース１０ａで形成される第１ステータ部１０と、複数の第２ステータピース２０ａで形成される第２ステータ部２０とが境界面で接合した状態となる。更に、第１固定ティース部１３と第２係合ティース部２３とが複数のカシメ部Ｅにより一体化し、第１係合ティース部１２と第２固定ティース部２２とが複数のカシメ部Ｅにより一体化する。 This integrated product is in a state where the first stator portion 10 formed by the plurality of first stator pieces 10a and the second stator portion 20 formed by the plurality of second stator pieces 20a are joined at the boundary surface. Further, the first fixed tooth portion 13 and the second engaging tooth portion 23 are integrated by a plurality of caulking portions E, and the first engaging tooth portion 12 and the second fixed tooth portion 22 are integrated by a plurality of caulking portions E. To become.

分離工程（＃０３）では、第１固定ティース部１３と第２係合ティース部２３とが一体化する状態を維持すると共に、第１係合ティース部１２と第２固定ティース部２２とが一体化する状態を維持しつつ、第１ステータ部１０と、第２ステータ部２０とを分離させる。 In the separation step (# 03), the first fixed tooth portion 13 and the second engaging tooth portion 23 are maintained in an integrated state, and the first engaging tooth portion 12 and the second fixed tooth portion 22 are integrated. The first stator portion 10 and the second stator portion 20 are separated while maintaining the state of being changed.

この分離工程（＃０３）として、図５に示すように上部に第１ステータ部１０を配置し、下部に第２ステータ部２０を配置したものを、一体化工程（＃０２）で作り出される一体物の例に挙げる。図５に示す一体化物を対象とした場合には、複数（６つ）の第１係合ティース部１２の上面の各々に第１治具（図示せず）を当接させると共に、複数（６つ）の第２係合ティース部２３の下面の各々に第２治具（図示せず）を当接させ、第１治具を下方に移動させ、第２治具を上方に移動させる分離作動が行われる。 As this separation step (# 03), as shown in FIG. 5, the first stator portion 10 is arranged at the upper part and the second stator portion 20 is arranged at the lower part, and the integral is produced by the integration step (# 02). Take an example of a thing. When the integrated object shown in FIG. 5 is targeted, a first jig (not shown) is brought into contact with each of the upper surfaces of a plurality (six) first engaging teeth portions 12, and a plurality (6) are brought into contact with each other. A second jig (not shown) is brought into contact with each of the lower surfaces of the second engaging tooth portion 23 (not shown), the first jig is moved downward, and the second jig is moved upward. Is done.

この分離作動が行われることにより、図６に示すように、第１係合ティース部１２が第１ヨーク部１１から分離し、複数の第１係合ティース部１２が複数の第２固定ティース部２２に積層した状態が維持される。これと同時に、第２係合ティース部２３が第２ヨーク部２１から分離することにより、複数の第１固定ティース部１３に複数の第２係合ティース部２３が積層した状態が維持される。 By performing this separation operation, as shown in FIG. 6, the first engaging teeth portion 12 is separated from the first yoke portion 11, and the plurality of first engaging teeth portions 12 are a plurality of second fixed teeth portions. The state of being laminated on 22 is maintained. At the same time, by separating the second engaging teeth portion 23 from the second yoke portion 21, the state in which the plurality of second engaging teeth portions 23 are laminated on the plurality of first fixed teeth portions 13 is maintained.

この分離工程（＃０３）では、前述したように第１ヨーク部１１と第２ヨーク部２１との境界面において接合のために機能するカシメ部Ｅの設定（凸部Ｅａの一部の取り除き）により、この境界面での分離が良好に行われる。 In this separation step (# 03), as described above, the caulking portion E that functions for joining at the boundary surface between the first yoke portion 11 and the second yoke portion 21 is set (a part of the convex portion Ea is removed). Therefore, the separation at this boundary surface is performed well.

コイル部形成工程（＃０４）では、図７、図１０に示すように、複数の第１係合ティース部１２と、複数の第２固定ティース部２２とが一体化することで形成される複数の主極ティースＢの夫々を上下から絶縁性の樹脂で成るインシュレータ１で挟み込み、このインシュレータ１の外周に銅合金等の良導体で成る導線２を、巻付装置を用いて巻回する。尚、巻付装置では、筒状のノズル（図示せず）から導線２を繰り出す状態でノズルと主極ティースＢとを相対的に変位させる形態で導線を巻き付ける作動形態であるため、ノズルの作動可能な空間が拡大しコイル部Ｄを形成作業が容易となる。 In the coil portion forming step (# 04), as shown in FIGS. 7 and 10, a plurality of first engaging teeth portions 12 and a plurality of second fixed teeth portions 22 are formed by being integrated. Each of the main pole teeth B of the above is sandwiched between insulators 1 made of an insulating resin from above and below, and a conducting wire 2 made of a good conductor such as a copper alloy is wound around the outer periphery of the insulator 1 by using a winding device. In the winding device, the lead wire 2 is unwound from a cylindrical nozzle (not shown), and the lead wire is wound so that the nozzle and the main electrode tooth B are relatively displaced. Therefore, the nozzle is operated. The possible space is expanded and the coil portion D is formed easily.

このように第１ステータ部１０から、第２ステータ部２０が分離する状態では、図６に示すように第２ステータ部２０に主極ティースＢだけを備えており、補極ティースＣが第１ステータ部１０に備えられることになる。このため、第２ステータ部２０の周方向で主極ティースＢのそれぞれのティース部の両側部に広い空間が確保されることになり、コイル部Ｄを形成する作業を極めて容易に行える。 In the state where the second stator portion 20 is separated from the first stator portion 10 in this way, as shown in FIG. 6, the second stator portion 20 is provided with only the main pole teeth B, and the auxiliary pole teeth C is the first. It will be provided in the stator portion 10. Therefore, a wide space is secured on both sides of each tooth portion of the main pole teeth B in the circumferential direction of the second stator portion 20, and the work of forming the coil portion D can be performed extremely easily.

前述したように、導線２を巻回する際の張力が作用しても主極ティースＢ（特に、第２固定ティース部２２）の姿勢を安定させるため図６、図７に示すように第２ステータ部２０を構成する第２ステータピース２０ａの積層数（枚数）が、第１ステータ部１０を構成する第１ステータピース１０ａの積層数（枚数）より多く設定されている。 As described above, in order to stabilize the posture of the main pole teeth B (particularly, the second fixed teeth portion 22) even when the tension when winding the conductor 2 acts, the second as shown in FIGS. 6 and 7. The number of layers (number of sheets) of the second stator pieces 20a constituting the stator unit 20 is set to be larger than the number of layers (number of sheets) of the first stator pieces 10a constituting the first stator unit 10.

係合連結工程（＃０５）では、第１ステータ部１０と、コイル部Ｄが形成された第２ステータ部２０とを前述した分離工程（＃０３）の相対移動方向と逆方向に相対移動させることにより第１ステータ部１０と第２ステータ部２０とを再び一体化させ、図１に示すステータコアＳＣを得る。 In the engagement connection step (# 05), the first stator portion 10 and the second stator portion 20 in which the coil portion D is formed are relatively moved in the direction opposite to the relative movement direction in the separation step (# 03) described above. As a result, the first stator portion 10 and the second stator portion 20 are integrated again to obtain the stator core SC shown in FIG.

この係合連結工程（＃０５）では、第１係合ティース部１２の第１係合縁１２ｃを、第１ヨーク部１１のうち対応する第１係合面１１ｃに係合させ、第２係合ティース部２３のち対応する第２係合面２１ｃに係合させる。また、この係合連結工程（＃０５）では、第１ステータ部１０と第２ステータ部２０との境界に位置する第１ステータピース１０ａと第２ステータピース２０ａとがカシメ部Ｅにより接合する。 In this engagement connection step (# 05), the first engagement edge 12c of the first engagement teeth portion 12 is engaged with the corresponding first engagement surface 11c of the first yoke portions 11, and the second engagement is performed. After the mating teeth portion 23, it is engaged with the corresponding second engaging surface 21c. Further, in this engagement connection step (# 05), the first stator piece 10a and the second stator piece 20a located at the boundary between the first stator portion 10 and the second stator portion 20 are joined by the caulking portion E.

このように完成したステータコアＳＣは樹脂ポッティング処理等が行われ、コイル部Ｄからのリード線が基板に接続される等の工程によりモータの一部となる。 The stator core SC completed in this way is subjected to a resin potting process or the like, and becomes a part of the motor by a process such as connecting the lead wire from the coil portion D to the substrate.

〔実施形態の作用効果〕
第１ステータ部１０と第２ステータ部２０とを分離した状態では、主極ティースＢが形成された第２ステータ部２０の周方向で第１係合ティース部１２と第２係合ティース部２３との一体物に隣接する位置に第１固定ティース部１３や第２係合ティース部２３が存在せず、広く空間が形成されるため、主極ティースＢに対する導線２の巻回が容易となる。 [Action and effect of the embodiment]
In a state where the first stator portion 10 and the second stator portion 20 are separated, the first engaging teeth portion 12 and the second engaging teeth portion 23 are formed in the circumferential direction of the second stator portion 20 in which the main electrode teeth B are formed. Since the first fixed tooth portion 13 and the second engaging tooth portion 23 do not exist at a position adjacent to the one piece with the main electrode tooth B and a wide space is formed, the winding of the conductor 2 with respect to the main pole tooth B becomes easy. ..

特に、第１係合ティース部１２と第２係合ティース部２３とが分離可能な構造であるものの、第１固定ティース部１３の位置が第１ヨーク部１１に対して固定され、この第１固定ティース部１３に対して第２係合ティース部２３がカシメ部Ｅにより積層状態で接合している。しかも、第２固定ティース部２２の位置が第２ヨーク部２１に対して固定され、この第２固定ティース部２２に対して第１係合ティース部１２がカシメ部Ｅにより積層状態で接合するため、各ティース部の先端位置の決まった位置に保持できる。 In particular, although the first engaging teeth portion 12 and the second engaging teeth portion 23 have a separable structure, the position of the first fixed teeth portion 13 is fixed with respect to the first yoke portion 11, and this first The second engaging tooth portion 23 is joined to the fixed tooth portion 13 by the caulking portion E in a laminated state. Moreover, the position of the second fixed tooth portion 22 is fixed to the second yoke portion 21, and the first engaging tooth portion 12 is joined to the second fixed tooth portion 22 in a laminated state by the caulking portion E. , Can be held at a fixed position at the tip of each tooth.

また、第１ステータピース１０ａと第２ステータピース２０ａとは、例えば、プレス加工時に固定ティース部と係合ティース部とを同時に形成することも可能であり、部品点数の増大を抑制する。 Further, the first stator piece 10a and the second stator piece 20a can form, for example, a fixed tooth portion and an engaging tooth portion at the same time during press working, thereby suppressing an increase in the number of parts.

第１ステータピース１０ａの積層数より、第２ステータピース２０ａの積層数を増大させることにより、主極ティースＢに導線２を巻回する際にも、主極ティースＢの姿勢を安定させて精度の高い巻回を行える。 By increasing the number of layers of the second stator piece 20a from the number of layers of the first stator piece 10a, the posture of the main electrode teeth B is stabilized and accuracy is achieved even when the conductor 2 is wound around the main electrode teeth B. Can perform high winding.

第１ステータピース１０ａの各部を積層方向で接合するための複数のカシメ部Ｅによる接合力と、第２ステータピース２０ａの各部を積層方向で接合するための複数のカシメ部Ｅによる接合力とは等しく設定している。この接合力と比較して、第１ヨーク部１１と第２ヨーク部２１との境界面におけるカシメ部Ｅの接合力を弱く設定することにより、分離工程（＃０３）を容易に行える。 What is the joining force of the plurality of caulking portions E for joining each part of the first stator piece 10a in the stacking direction and the joining force of the plurality of caulking portions E for joining each part of the second stator piece 20a in the stacking direction? It is set equally. By setting the joining force of the caulking portion E at the boundary surface between the first yoke portion 11 and the second yoke portion 21 to be weaker than this joining force, the separation step (# 03) can be easily performed.

〔別実施形態〕
本発明は、上記した実施形態以外に以下のように構成しても良い（実施形態と同じ機能を有するものには、実施形態と共通の番号、符号を付している）。 [Another Embodiment]
The present invention may be configured as follows in addition to the above-described embodiments (those having the same functions as those of the embodiments are designated by the same numbers and reference numerals as those of the embodiments).

（ａ）環状のヨークＡと、このヨークＡの内周においてヨークＡの中心方向に突出する複数のティースと、複数のティースの全てに形成したコイル部Ｄとを備えてステータコアＳＣを構成し、このステータコアＳＣにおいて、実施形態と同様の工程によりコイル部Ｄを形成する。 (A) A stator core SC is configured by including an annular yoke A, a plurality of teeth protruding toward the center of the yoke A on the inner circumference of the yoke A, and coil portions D formed on all of the plurality of teeth. In this stator core SC, the coil portion D is formed by the same process as that of the embodiment.

この別実施形態（ａ）では、実施形態と同様に第１ステータ部１０と、第２ステータ部２０とを備え、これらを軸芯Ｘに沿う方向に相対移動することで分離可能となる構成を備えてステータコアＳＣが構成される。 In this other embodiment (a), as in the embodiment, the first stator portion 10 and the second stator portion 20 are provided, and these can be separated by relatively moving in the direction along the axis X. A stator core SC is configured in preparation for this.

また、この別実施形態（ａ）では、製造方法としてプレス工程（＃０１）と、一体化工程（＃０２）と、分離工程（＃０３）と、コイル部形成工程（＃０４）と、係合連結工程（＃０５）との工程を、この順序で行うことになる。そして、コイル部形成工程（＃０４）では、分離状態にある第１ステータ部１０と第２ステータ部２０において、重ね合わせ状態で一体化したティースに導線２を巻回することでコイル部Ｄを形成し、この後に、係合連結工程（＃０５）において連結することによりステータコアＳＣが完成する。 Further, in this separate embodiment (a), as a manufacturing method, a pressing step (# 01), an integration step (# 02), a separation step (# 03), and a coil portion forming step (# 04) are involved. The steps with the combined connection step (# 05) will be performed in this order. Then, in the coil portion forming step (# 04), in the first stator portion 10 and the second stator portion 20 in the separated state, the coil portion D is wound by winding the lead wire 2 around the teeth integrated in the superposed state. The stator core SC is completed by forming and then connecting in the engagement connection step (# 05).

尚、この別実施形態（ａ）では、第１ステータ部１０と第２ステータ部２０とにおいて、共通するステータピースを用いることが可能であるため、プレス工程（＃０１）に用いる金型が単純化し、工程も簡素になる。 In this other embodiment (a), since it is possible to use a common stator piece in the first stator portion 10 and the second stator portion 20, the die used in the pressing step (# 01) is simple. And the process is simplified.

（ｂ）ステータコアＳＣとして、実施形態で説明した主極ティースＢと補極ティースＣとの２組のティースの他に、これらと異なる機能を有するティースを備えた構成のものに適用する。このように３組のティースを備えるものでは、２組のティースを第１ステータ部１０と第２ステータ部２０との一方に備え、コイル部Ｄが形成されるティースを第１ステータ部１０と第２ステータ部２０との他方に備え、これらを分離工程（＃０３）において分離することにより、導線２の巻回を容易に行える。 (B) As the stator core SC, in addition to the two sets of teeth of the main pole teeth B and the auxiliary pole teeth C described in the embodiment, the stator core SC is applied to a configuration having teeth having different functions. In the case of having three sets of teeth as described above, two sets of teeth are provided on one of the first stator portion 10 and the second stator portion 20, and the teeth on which the coil portion D is formed are provided on the first stator portion 10 and the first stator portion 20. 2 The conductor 2 can be easily wound by preparing for the other side of the stator portion 20 and separating them in the separation step (# 03).

つまり、この別実施形態（ｂ）では少なくとも３組のティースを備えたステータコアＳＣを対象とするものであり、３組以上のティースを備えるものであっても、導線２を容易に巻回してコイル部Ｄを形成できる。 That is, in this other embodiment (b), the stator core SC having at least three sets of teeth is targeted, and even if the one has three or more sets of teeth, the conductor 2 is easily wound around the coil. Part D can be formed.

本発明は、環状のヨークの内周に複数のティース部を形成したステータピースを積層したステータコアおよびステータコアの製造方法に利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used in a method for manufacturing a stator core and a stator core in which a stator piece having a plurality of tooth portions formed on the inner circumference of an annular yoke is laminated.

２ 導線
１０ 第１ステータ部
１０ａ 第１ステータピース
１１ 第１ヨーク部
１２ 第１係合ティース部
１３ 第１固定ティース部
２０ 第２ステータ部
２０ａ 第２ステータピース
２１ 第２ヨーク部
２２ 第２固定ティース部
２３ 第２係合ティース部
Ｄ コイル部
Ｅ カシメ部
＃０１ プレス工程（第１ステータピース形成工程）
＃０１ プレス工程（第２ステータピース形成工程）
＃０２ 一体化工程
＃０３ 分離工程
＃０４ コイル部形成工程
＃０５ 係合連結工程 2 Conductor 10 1st stator part 10a 1st stator piece 11 1st yoke part 12 1st engaging teeth part 13 1st fixed teeth part 20 2nd stator part 20a 2nd stator piece 21 2nd yoke part 22 2nd fixed teeth Part 23 Second engaging tooth part D Coil part E Caulking part # 01 Pressing process (first stator piece forming process)
# 01 Pressing process (second stator piece forming process)
# 02 Integration process # 03 Separation process # 04 Coil part forming process # 05 Engagement connection process

Claims (4)

環状の第１ヨーク部の内周に係脱自在に支持される複数の第１係合ティース部と、前記第１ヨーク部の内周に一体形成される複数の第１固定ティース部と、の少なくとも２組のティース部を有する第１ステータピースを形成する第１ステータピース形成工程と、
環状の第２ヨーク部の内周に係脱自在に支持される複数の第２係合ティース部と、前記第２ヨーク部の内周に一体形成される複数の第２固定ティース部と、の少なくとも２組のティース部を有する第２ステータピースを形成する第２ステータピース形成工程と、
複数の前記第１ステータピースと、複数の前記第２ステータピースとを積層し、前記第１係合ティース部と前記第２固定ティース部とを積層方向で一体化すると共に、前記第１固定ティース部と前記第２係合ティース部とを積層方向で一体化する一体化工程と、
前記第１固定ティース部に前記第２係合ティース部が積層状態で一体化し、且つ、前記第２固定ティース部に前記第１係合ティース部を積層状態で一体化した状態で分離し、前記第１固定ティース部と前記第２係合ティース部が積層された第１ステータ部と、前記第２固定ティース部と前記第１係合ティース部が積層された第２ステータ部と得る分離工程と、
前記分離工程の後において積層状態で一体化している前記第１固定ティース部と前記第２係合ティース部、及び、積層状態で一体化している前記第２固定ティース部と前記第１係合ティース部の何れか少なくとも一方に導線を巻回するコイル部形成工程と、
前記第１ステータ部と、前記第２ステータ部とを積層方向で重ね合わせると共に、この重ね合わせにより前記第１係合ティース部を前記第１ヨーク部に係合させ、前記第２係合ティース部を前記第２ヨーク部に係合させる係合連結工程とを有するステータコアの製造方法。 A plurality of first engaging teeth portions that are detachably supported on the inner circumference of the annular first yoke portion, and a plurality of first fixed teeth portions that are integrally formed on the inner circumference of the first yoke portion. A first stator piece forming step of forming a first stator piece having at least two sets of teeth portions,
A plurality of second engaging teeth portions that are detachably supported on the inner circumference of the annular second yoke portion, and a plurality of second fixed teeth portions that are integrally formed on the inner circumference of the second yoke portion. A second stator piece forming step of forming a second stator piece having at least two sets of teeth portions,
The plurality of the first stator pieces and the plurality of the second stator pieces are laminated, and the first engaging tooth portion and the second fixed tooth portion are integrated in the stacking direction, and the first fixed tooth portion is integrated. An integration step of integrating the portion and the second engaging tooth portion in the stacking direction,
The second engaging tooth portion is integrated with the first fixed tooth portion in a laminated state, and the first engaging tooth portion is separated with the second fixed tooth portion in a laminated state. A separation step for obtaining a first stator portion in which the first fixed tooth portion and the second engaging tooth portion are laminated, and a second stator portion in which the second fixed tooth portion and the first engaging tooth portion are laminated. ,
The first fixed tooth portion and the second engaging tooth portion integrated in the laminated state after the separation step, and the second fixed tooth portion integrated with the first engaging tooth portion in the laminated state. A coil portion forming process in which a conducting wire is wound around at least one of the portions,
The first stator portion and the second stator portion are superposed in the stacking direction, and the first engaging teeth portion is engaged with the first yoke portion by this superposition, and the second engaging teeth portion is engaged. A method for manufacturing a stator core, which comprises an engagement connection step of engaging the second yoke portion with the second yoke portion. 前記第１係合ティース部と、前記第１固定ティース部とが、前記第１ヨーク部の内周において周方向で交互に配置されると共に、前記第２係合ティース部と、前記第２固定ティース部とが、前記第２ヨーク部の内周において周方向で交互に配置されている請求項１に記載のステータコアの製造方法。 The first engaging teeth portion and the first fixed teeth portion are alternately arranged in the circumferential direction on the inner circumference of the first yoke portion, and the second engaging teeth portion and the second fixing portion are arranged. The method for manufacturing a stator core according to claim 1, wherein the teeth portions are alternately arranged in the circumferential direction on the inner circumference of the second yoke portion. 積層状態の前記第１固定ティース部と前記第２係合ティース部、又は、積層状態の前記第２固定ティース部と前記第１係合ティース部の一方にのみ前記導線を巻回したコイル部が形成され、
前記第１固定ティース部と前記第２係合ティース部とが前記導線の巻回対象であるものでは、前記第１ステータピースの積層数が、前記第２ステータピースの積層数以上であり、
前記第２固定ティース部と前記第１係合ティース部とが前記導線の巻回対象であるものでは、前記第２ステータピースの積層数が、前記第１ステータピースの積層数以上である請求項１又は２に記載のステータコアの製造方法。 The coil portion in which the lead wire is wound only on one of the first fixed tooth portion and the second engaging tooth portion in a laminated state, or the second fixed tooth portion and the first engaging tooth portion in a laminated state. Formed,
In the case where the first fixed tooth portion and the second engaging tooth portion are the winding targets of the conducting wire, the number of laminated first stator pieces is equal to or greater than the number of laminated second stator pieces.
A claim that the number of laminated second stator pieces is equal to or greater than the number of laminated first stator pieces in a case where the second fixed tooth portion and the first engaging tooth portion are to be wound with the conducting wire. The method for manufacturing a stator core according to 1 or 2. 前記第１ヨーク部において隣接する前記第１ステータピース同士を接合する積層面のカシメ部による接合力、及び、前記第２ヨーク部において隣接する前記第２ステータピース同士を接合する積層面のカシメ部による接合力と比較して、前記第１ヨーク部と前記第２ヨーク部との境界面におけるカシメ部による接合力を弱く設定している請求項１～３のいずれか一項に記載のステータコアの製造方法。 The bonding force by the caulking portion of the laminated surface for joining the adjacent first stator pieces in the first yoke portion, and the caulking portion of the laminated surface for joining the adjacent second stator pieces in the second yoke portion. The stator core according to any one of claims 1 to 3, wherein the joining force due to the caulking portion at the boundary surface between the first yoke portion and the second yoke portion is set to be weaker than the joining force according to the above. Manufacturing method .
JP2017218228A 2017-11-13 2017-11-13 Manufacturing method of stator core Active JP7062921B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017218228A JP7062921B2 (en) 2017-11-13 2017-11-13 Manufacturing method of stator core
CN201880070816.8A CN111295817B (en) 2017-11-13 2018-10-31 Stator core and method for manufacturing stator core
PCT/JP2018/040524 WO2019093205A1 (en) 2017-11-13 2018-10-31 Stator core and stator core manufacturing method
DE112018005461.6T DE112018005461T5 (en) 2017-11-13 2018-10-31 Stator core and manufacturing method of a stator core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017218228A JP7062921B2 (en) 2017-11-13 2017-11-13 Manufacturing method of stator core

Publications (2)

Publication Number Publication Date
JP2019092252A JP2019092252A (en) 2019-06-13
JP7062921B2 true JP7062921B2 (en) 2022-05-09

Family

ID=66438330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017218228A Active JP7062921B2 (en) 2017-11-13 2017-11-13 Manufacturing method of stator core

Country Status (4)

Country Link
JP (1) JP7062921B2 (en)
CN (1) CN111295817B (en)
DE (1) DE112018005461T5 (en)
WO (1) WO2019093205A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6764921B2 (en) * 2018-12-25 2020-10-07 山洋電気株式会社 Armature structure of 3-phase motor
US11677281B2 (en) * 2019-09-04 2023-06-13 Lg Electronics Inc. Divided core of a motor
WO2021059483A1 (en) * 2019-09-27 2021-04-01 三菱電機株式会社 Rotating electrical machine and method of manufacturing same
JP2022076731A (en) * 2020-11-10 2022-05-20 株式会社日立製作所 Rotary electric machine
JP2022155981A (en) * 2021-03-31 2022-10-14 ミネベアミツミ株式会社 motor
KR102570833B1 (en) * 2022-07-22 2023-08-29 주식회사 코아오토모티브 Stator assembly and motor including the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070138876A1 (en) 2003-04-29 2007-06-21 Robert Bosch Gmbh Electrical machine
JP2010057277A (en) 2008-08-28 2010-03-11 Mitsuba Corp Electric motor
WO2015151274A1 (en) 2014-04-04 2015-10-08 三菱電機株式会社 Rotating electric machine stator and method for manufacturing same
JP2017104005A (en) 2015-09-30 2017-06-08 ジョンソン エレクトリック ソシエテ アノニム Brushless motor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09322441A (en) * 1996-05-29 1997-12-12 Kokusan Denki Co Ltd Armature for rotating machine and its manufacture
JPH1198772A (en) * 1997-09-12 1999-04-09 Toshiba Corp Manufacture of stator of motor
CN103430435B (en) * 2011-04-29 2016-03-02 三菱电机株式会社 The laminate core of linear motor and manufacture method thereof
CN102306961B (en) * 2011-09-01 2014-10-15 深圳众为兴技术股份有限公司 process for manufacturing motor
US20130200742A1 (en) * 2012-02-08 2013-08-08 Asmo Co., Ltd. Stator, brushless motor, stator manufacturing method
JP2015192551A (en) * 2014-03-28 2015-11-02 アイシン・エィ・ダブリュ株式会社 Stator and motor
KR101693686B1 (en) * 2014-09-23 2017-01-09 주식회사 아모텍 Stator and Motor having Stator thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070138876A1 (en) 2003-04-29 2007-06-21 Robert Bosch Gmbh Electrical machine
JP2010057277A (en) 2008-08-28 2010-03-11 Mitsuba Corp Electric motor
WO2015151274A1 (en) 2014-04-04 2015-10-08 三菱電機株式会社 Rotating electric machine stator and method for manufacturing same
JP2017104005A (en) 2015-09-30 2017-06-08 ジョンソン エレクトリック ソシエテ アノニム Brushless motor

Also Published As

Publication number Publication date
WO2019093205A1 (en) 2019-05-16
JP2019092252A (en) 2019-06-13
CN111295817B (en) 2022-08-30
CN111295817A (en) 2020-06-16
DE112018005461T5 (en) 2020-06-25

Similar Documents

Publication Publication Date Title
JP7062921B2 (en) Manufacturing method of stator core
TWI399013B (en) Method for making a molded stator of a rotary electric machinery
JPWO2010082465A1 (en) Manufacturing method of laminated core and manufacturing jig thereof
TWI451666B (en) Method for making laminated iron core and laminated iron core made thereby
JP3623702B2 (en) Stator for rotating electrical machine
JP5719979B1 (en) Laminated iron core manufacturing apparatus and laminated iron core manufacturing method
JP5212129B2 (en) Manufacturing method of laminated core and manufacturing jig thereof
JP3765561B2 (en) Manufacturing method of laminated iron core
JP5952701B2 (en) Motor stator structure, brushless motor, and method for manufacturing motor stator structure
JP6076179B2 (en) Split stator core, stator having the split stator core, rotating electric machine having the stator, and method of manufacturing the split stator core
JP6509373B2 (en) Core sheet, divided laminated core and stator, and method of manufacturing divided laminated core
JP2007306636A (en) Stator for inner rotor type rotary electric machine
JP4001277B2 (en) Laminated iron core and method for producing laminated iron core
KR20120025827A (en) Method for manufacturing a separated stator and stator thereof
JP5773926B2 (en) Laminated stator core, laminated stator, laminated stator manufacturing method
JP2012217279A (en) Stator core for rotary electric machine, the rotary electric machine, and manufacturing method of the stator core for the rotary electric machine
JP2017093191A (en) Laminated iron core and manufacturing method thereof
JP5462643B2 (en) Laminated iron core and method for manufacturing the same
JP2005102424A (en) Split laminated core and manufacturing method for divided laminated core
JP6045638B2 (en) Manufacturing method of laminated iron core
JP6708360B1 (en) Split core of stator core, stator having the same, method of manufacturing split core of stator core, and manufacturing apparatus
JP4291042B2 (en) Rotating electric machine and manufacturing method thereof
JP2006158003A (en) Process for manufacturing laminated stator core
JP6436825B2 (en) Stator and stator manufacturing method
JP5889164B2 (en) Manufacturing method of iron sheet with frame, manufacturing method of iron core with frame, manufacturing method of iron core, and manufacturing method of electric motor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20201015

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210907

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20211105

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220322

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220404

R150 Certificate of patent or registration of utility model

Ref document number: 7062921

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150