[go: up one dir, main page]

JP6818476B2 - Stator iron core of rotary electric machine - Google Patents

Stator iron core of rotary electric machine Download PDF

Info

Publication number
JP6818476B2
JP6818476B2 JP2016178300A JP2016178300A JP6818476B2 JP 6818476 B2 JP6818476 B2 JP 6818476B2 JP 2016178300 A JP2016178300 A JP 2016178300A JP 2016178300 A JP2016178300 A JP 2016178300A JP 6818476 B2 JP6818476 B2 JP 6818476B2
Authority
JP
Japan
Prior art keywords
protrusion
circumferential direction
core
back yoke
recess
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
JP2016178300A
Other languages
Japanese (ja)
Other versions
JP2018046617A (en
Inventor
智 中田
智 中田
橋本 昭
昭 橋本
隆司 梅田
隆司 梅田
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2016178300A priority Critical patent/JP6818476B2/en
Publication of JP2018046617A publication Critical patent/JP2018046617A/en
Application granted granted Critical
Publication of JP6818476B2 publication Critical patent/JP6818476B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Iron Core Of Rotating Electric Machines (AREA)

Description

この発明は、発電機、電動機などの回転電機の固定子鉄心に関し、特に、磁極ティースがバックヨークから径方向外方に突出している固定子鉄心の構造に関するものである。 The present invention relates to a stator core of a rotating electric machine such as a generator and a motor, and more particularly to a structure of a stator core in which a magnetic pole tooth protrudes radially outward from a back yoke.

電動機や発電機などの回転電機の固定子鉄心は、鉄損を低減するために、板状のコア片を積層して構成されていた。回転子が固定子の外周側に配設されるアウターロータ型の回転電機の固定子鉄心は、磁極ティースが円環状のバックヨークから径方向外方に突出している。そこで、電磁鋼板などのシート材から打ち抜かれた円環状のコア片を積層して固定子鉄心を作製する場合、コア片の円環状のバックヨークの内周側の鋼板部分は廃材となるので、材料の歩留まりが悪くなる。 The stator cores of rotating electric machines such as electric motors and generators are constructed by laminating plate-shaped core pieces in order to reduce iron loss. In the stator core of the outer rotor type rotary electric machine in which the rotor is arranged on the outer peripheral side of the stator, the magnetic pole teeth project radially outward from the annular back yoke. Therefore, when a stator core is produced by laminating annular core pieces punched from a sheet material such as an electromagnetic steel plate, the steel plate portion on the inner peripheral side of the annular back yoke of the core piece is a waste material. The material yield is poor.

また、固定子鉄心の磁極ティースには、絶縁材を介してコイルが巻回される。このとき、コイルは巻線ノズルにより磁極ティースに巻回されるので、巻線ノズルの通るスペースが必要となる。そこで、固定子鉄心が円環状のコア片の積層体である場合、巻線ノズルにより隣の磁極ティースとの干渉を避けつつ当該磁極ティースにコイルを巻回するので、コイルのターン数が減少し、回転電機の効率が低下してしまう。 Further, a coil is wound around the magnetic pole teeth of the stator core via an insulating material. At this time, since the coil is wound around the magnetic pole teeth by the winding nozzle, a space through which the winding nozzle passes is required. Therefore, when the stator core is a laminated body of annular core pieces, the coil is wound around the magnetic pole tooth while avoiding interference with the adjacent magnetic pole tooth by the winding nozzle, so that the number of turns of the coil is reduced. , The efficiency of the rotating electric machine is reduced.

このような状況を鑑み、1本の磁極ティースのみを有する分割鉄心を円環状に配列して構成された固定子鉄心が提案されていた(例えば、特許文献1参照)。 In view of such a situation, a stator core formed by arranging divided iron cores having only one magnetic pole tooth in an annular shape has been proposed (see, for example, Patent Document 1).

この特許文献1によれば、分割鉄心が1本の磁極ティースのみを有している。そこで、巻線ノズルにより隣の磁極ティースに干渉されることなく当該磁極ティースにコイルを巻回できるので、コイルのターン数を増やすことができ、回転電機の効率を向上させることができる。
また、分割鉄心を構成するコア片はT字状に構成されているので、電磁鋼板などのシート材からコア片を打ち抜く際の廃材となる鋼板部分が少なくなり、材料の歩留まりを向上させることができる。
According to Patent Document 1, the split iron core has only one magnetic pole tooth. Therefore, since the coil can be wound around the magnetic pole tooth without being interfered with by the adjacent magnetic pole tooth by the winding nozzle, the number of turns of the coil can be increased and the efficiency of the rotary electric machine can be improved.
Further, since the core piece constituting the divided iron core is formed in a T shape, the steel plate portion that becomes a waste material when punching the core piece from the sheet material such as an electromagnetic steel plate is reduced, and the material yield can be improved. it can.

特開2007−159170号公報JP-A-2007-159170

しかしながら、特許文献1では、各分割鉄心の磁極ティースにコイルを巻回した後、分割鉄心を円環状に配列させる工程が必要となり、組み立て工数が増大し、製造コストが増大するという課題があった。 However, Patent Document 1 requires a step of winding a coil around the magnetic pole teeth of each divided iron core and then arranging the divided iron cores in an annular shape, which causes an increase in assembly man-hours and an increase in manufacturing cost. ..

この発明は、上記課題を解決するためになされたもので、それぞれ、1本の磁極ティースを有する、複数の分割鉄心を、軸方向をコア片の積層方向とする軸部周りに回転可能に連結された分割鉄心連結体として構成して、コア片の打ち抜き工程での材料歩留まりの低下を抑制しつつ、コイルの巻回後の組み立て工数を削減し、製造コストを低減する回転電機の固定子鉄心を得ることを目的とする。 The present invention has been made to solve the above problems, and a plurality of divided iron cores, each having one magnetic pole tooth, are rotatably connected around a shaft portion whose axial direction is the stacking direction of core pieces. The stator core of a rotary electric machine, which is configured as a split iron core connecting body, reduces the assembly man-hours after coil winding and reduces the manufacturing cost while suppressing the decrease in material yield in the core piece punching process. The purpose is to obtain.

この発明による回転電機の固定子鉄心は、それぞれ、バックヨークおよび前記バックヨークの周方向中央部から径方向外方に突出した磁極ティースを有する複数の分割鉄心を連結して円弧状に配列した分割鉄心連結体を複数有し、複数の前記分割鉄心連結体を円環状に配列して構成されている。前記バックヨークは、嵌合穴を有する周方向の一側の第1端部と、嵌合凸部を有する周方向の他側の第2端部と、を有し、前記分割鉄心は、交互に積層されている第1コア片と第2コア片により構成され、前記第1コア片は、第1バックヨーク部と第1磁極ティース部を有し、前記第2コア片は、前記第1バックヨーク部と交互に積層されて前記バックヨークを構成する第2バックヨーク部と、前記第1磁極ティース部と交互に積層されて前記磁極ティースを構成する第2磁極ティース部を有し、前記第1端部は、前記第1バックヨーク部が前記第2バックヨーク部に対して周方向の一側に突出しており、前記嵌合穴が、前記第1端部における前記第1バックヨーク部の突出部に形成され、前記第2端部は、前記第2バックヨーク部が前記第1バックヨーク部に対して周方向の他側に突出しており、前記嵌合凸部が、前記第2端部における前記第2バックヨーク部の突出部に形成され、複数の前記分割鉄心は、前記分割鉄心の前記第2端部の前記第2バックヨーク部の突出部が隣の前記分割鉄心の前記第1端部の前記第1バックヨーク部の突出部間に挿入され、かつ前記嵌合凸部が前記嵌合穴に嵌合されている状態で、前記嵌合凸部周りに回転可能に連結されている。前記嵌合穴は、周方向に延びる長穴形状に形成され、前記分割鉄心は、隣接する前記分割鉄心に対して、前記嵌合凸部が前記嵌合穴の周方向の一端に接する拡大位置と、前記嵌合凸部が前記嵌合穴の周方向の他端に接する縮小位置と、の間を変位可能に構成され、前記第2コア片の前記第2バックヨーク部の周方向の他側の端部に形成された第2突起部と、軸心を第2磁極間中心線上に位置させて前記第2突起部に形成された前記嵌合凸部と、前記第2突起部の外周面の一部により構成され、半周以上の周長を有し、前記第2突起部に形成された前記嵌合凸部の軸心を中心とする円弧面の第2円弧部と、前記第2突起部の内径側に形成され、前記第2磁極間中心線から周方向の一側に窪む第2窪み部と、前記第2コア片の前記第2バックヨーク部の周方向の一側の端部に形成され、第1磁極間中心線から周方向の他側に窪む第1窪み部と、前記第1窪み部の内周面により構成され、半周以上の周長を有し、前記第2突起部が前記1窪み部に嵌合されたときの前記嵌合凸部の軸心を中心とする円弧面の第1円弧部と、前記第1窪み部の内径側に形成され、前記第1磁極間中心線から周方向一側に突出する第1突起部と、を備え、前記固定子鉄心が、隣の前記固定子鉄心に対して縮小位置に位置しているときに、前記第2突起部が前記第1窪み部に嵌合し、第1突起部が第2窪み部に嵌合する。 The stator core of the rotary electric machine according to the present invention is divided into a back yoke and a plurality of divided iron cores having magnetic pole teeth protruding radially outward from the circumferential center of the back yoke and arranged in an arc shape. It has a plurality of iron core connectors, and is configured by arranging the plurality of divided iron core connectors in an annular shape. The back yoke has a first end portion on one side in the circumferential direction having a fitting hole and a second end portion on the other side in the circumferential direction having a fitting convex portion, and the divided iron cores alternate. The first core piece is composed of a first core piece and a second core piece laminated in the above, the first core piece has a first back yoke portion and a first magnetic pole tooth portion, and the second core piece is the first core piece. It has a second back yoke portion that is alternately laminated with the back yoke portion to form the back yoke, and a second magnetic pole tooth portion that is alternately laminated with the first magnetic pole tooth portion to form the magnetic pole tooth portion. In the first end portion, the first back yoke portion projects to one side in the circumferential direction with respect to the second back yoke portion, and the fitting hole is the first back yoke portion in the first end portion. The second back yoke portion is formed on the protruding portion of the above, and the second back yoke portion projects to the other side in the circumferential direction with respect to the first back yoke portion, and the fitting convex portion is the second. The plurality of divided iron cores are formed in the protruding portion of the second back yoke portion at the end portion, and the plurality of the divided iron cores are such that the protruding portion of the second back yoke portion of the second end portion of the divided iron core is adjacent to the divided iron core. It is rotatably connected around the fitting convex portion while being inserted between the protruding portions of the first back yoke portion at the first end portion and the fitting convex portion is fitted in the fitting hole. Has been done. The fitting hole is formed in an elongated hole shape extending in the circumferential direction, and the split iron core is an enlarged position where the fitting convex portion contacts one end of the fitting hole in the circumferential direction with respect to the adjacent split iron core. And the reduced position where the fitting convex portion is in contact with the other end in the circumferential direction of the fitting hole so as to be displaceable, and other than the circumferential direction of the second back yoke portion of the second core piece. The second protrusion formed at the end on the side, the fitting protrusion formed on the second protrusion with the axis centered on the center line between the second magnetic poles, and the outer circumference of the second protrusion. A second arcuate portion of an arc surface centered on the axis of the fitting convex portion formed on the second projection portion, which is composed of a part of the surface and has a circumference of half or more, and the second arcuate portion. A second recess formed on the inner diameter side of the protrusion and recessed to one side in the circumferential direction from the center line between the second magnetic poles, and one side of the second core piece in the circumferential direction of the second back yoke portion. It is composed of a first recess formed at the end and recessed to the other side in the circumferential direction from the center line between the first magnetic poles, and an inner peripheral surface of the first recess, and has a circumference of more than half a circumference. a first arc portion of the arcuate surface centered on the axis of the fitting convex portion when the second protruding portion is fitted into the first recess portion is formed on the inner diameter side of the first recess portion, When the stator core is located at a reduced position with respect to the adjacent stator core, the first projection portion is provided so as to project from the center line between the first magnetic poles to one side in the circumferential direction. The second protrusion fits into the first recess, and the first protrusion fits into the second recess.

この発明によれば、固定子鉄心が複数の分割鉄心連結体を円環状に配列して構成されるので、分割鉄心を円環状に配列して固定子鉄心を構成する場合に比べて、磁極ティースにコイルを巻回した後の組み立て工数が削減され、製造コストを低減できる。
分割鉄心連結体は、複数の分割鉄心を嵌合凸部周りに回転可能に連結して構成されている。そこで、コイルの巻回工程では、隣り合う磁極ティース間が広がるように巻回対象の分割鉄心を嵌合凸部周りに回転させて、隣の磁極ティースに干渉されることなく当該磁極ティースにコイルを巻回できる。
分割鉄心が第1コア片と第2コア片により構成されているので、電磁鋼板などのシート材から円環状のコア片を打ち抜く場合に比べて、廃材が少なくなり、歩留まりが向上される。
According to the present invention, since the stator core is formed by arranging a plurality of divided core connecting bodies in an annular shape, the magnetic pole teeth are compared with the case where the divided iron cores are arranged in an annular shape to form the stator core. The number of assembly steps after winding the coil is reduced, and the manufacturing cost can be reduced.
The split iron core connecting body is configured by rotatably connecting a plurality of split iron cores around a fitting convex portion. Therefore, in the coil winding process, the split iron core to be wound is rotated around the fitting convex portion so that the space between the adjacent magnetic pole teeth is widened, and the coil is coiled to the magnetic pole teeth without being interfered by the adjacent magnetic pole teeth. Can be wound.
Since the divided iron core is composed of the first core piece and the second core piece, the amount of waste material is reduced and the yield is improved as compared with the case where the annular core piece is punched from a sheet material such as an electromagnetic steel plate.

この発明の実施の形態1に係る回転電機の固定子鉄心を示す平面図である。It is a top view which shows the stator core of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る回転電機の固定子鉄心の構成を説明する分解平面図である。It is an exploded plan view explaining the structure of the stator core of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る回転電機の固定子鉄心を構成する分割鉄心連結体の構成を説明する分解斜視図である。It is an exploded perspective view explaining the structure of the split core connecting body which constitutes the stator core of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る回転電機の固定子鉄心を構成する分割鉄心連結体にコイルを巻回する方法を説明する図である。It is a figure explaining the method of winding a coil around the split core connecting body which constitutes the stator core of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態2に係る回転電機の固定子鉄心を示す平面図である。It is a top view which shows the stator core of the rotary electric machine which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the split core connectors constituting the stator core of the rotary electric machine according to the second embodiment of the present invention are linearly arranged as enlarged positions. この発明の実施の形態2に係る回転電機の固定子鉄心を構成する分割鉄心連結体にコイルを巻回する方法を説明する図である。It is a figure explaining the method of winding a coil around the split core connecting body which constitutes the stator core of the rotary electric machine which concerns on Embodiment 2 of this invention. この発明の実施の形態3に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the split core connectors constituting the stator core of the rotary electric machine according to the third embodiment of the present invention are arranged in an arc shape as a reduced position. この発明の実施の形態4に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the divided core connecting bodies constituting the stator core of the rotary electric machine according to the fourth embodiment of the present invention are arranged in an arc shape as a reduced position. この発明の実施の形態4に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the split core connectors constituting the stator core of the rotary electric machine according to the fourth embodiment of the present invention are linearly arranged as enlarged positions. この発明の実施の形態5に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the divided core connecting bodies constituting the stator core of the rotary electric machine according to the fifth embodiment of the present invention are arranged in an arc shape as a reduced position. この発明の実施の形態5に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the split core connectors constituting the stator core of the rotary electric machine according to the fifth embodiment of the present invention are linearly arranged as enlarged positions. 図11に示される分割鉄心連結体の上端の第1コア片を取り除いた状態を示す正面図である。FIG. 11 is a front view showing a state in which the first core piece at the upper end of the split iron core connecting body shown in FIG. 11 is removed. この発明の実施の形態5に係る回転電機の固定子鉄心における第2コア片を示す正面図である。It is a front view which shows the 2nd core piece in the stator core of the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態5に係る回転電機の固定子鉄心における第1コア片を示す正面図である。It is a front view which shows the 1st core piece in the stator core of the rotary electric machine which concerns on Embodiment 5 of this invention.

以下、本発明による回転電機の固定子鉄心の好適な実施の形態につき図面を用いて説明する。 Hereinafter, preferred embodiments of the stator core of the rotary electric machine according to the present invention will be described with reference to the drawings.

実施の形態1.
図1はこの発明の実施の形態1に係る回転電機の固定子鉄心を示す平面図、図2はこの発明の実施の形態1に係る回転電機の固定子鉄心の構成を説明する分解平面図、図3はこの発明の実施の形態1に係る回転電機の固定子鉄心を構成する分割鉄心連結体の構成を説明する分解斜視図、図4はこの発明の実施の形態1に係る回転電機の固定子鉄心を構成する分割鉄心連結体にコイルを巻回する方法を説明する図である。
Embodiment 1.
FIG. 1 is a plan view showing the stator core of the rotary electric machine according to the first embodiment of the present invention, and FIG. 2 is an exploded plan view illustrating the configuration of the stator core of the rotary electric machine according to the first embodiment of the present invention. FIG. 3 is an exploded perspective view for explaining the configuration of a split iron core connector constituting the stator core of the rotary electric machine according to the first embodiment of the present invention, and FIG. 4 is a fixing of the rotary electric machine according to the first embodiment of the present invention. It is a figure explaining the method of winding a coil around a split core connecting body which constitutes a child core.

図1および図2において、固定子鉄心100は、3つの分割鉄心連結体1を円環状に配列して構成されている。分割鉄心連結体1は、6つの分割鉄心2を嵌合凸部18周りに回転可能に連結して円弧状に構成されている。分割鉄心2は、円弧状のバックヨーク3と、バックヨーク3の外周面の周方向中央部から径方向外方に突出する磁極ティース4と、を備えたT字状に作製されている。分割鉄心連結体1を構成する6つの分割鉄心2においては、一の分割鉄心2のバックヨーク3の周方向一側の第1端部3aと、その周方向一側に位置する分割鉄心2のバックヨーク3の周方向他側の第2端部3bと、を、嵌合凸部18で回転可能に連結されている。 In FIGS. 1 and 2, the stator core 100 is configured by arranging three divided core connecting bodies 1 in an annular shape. The divided iron core connecting body 1 is formed in an arc shape by rotatably connecting six divided iron cores 2 around the fitting convex portion 18. The split iron core 2 is formed in a T shape including an arcuate back yoke 3 and a magnetic pole tooth 4 projecting radially outward from the circumferential central portion of the outer peripheral surface of the back yoke 3. In the six divided iron cores 2 constituting the divided iron core connecting body 1, the first end portion 3a on one side of the back yoke 3 of one divided iron core 2 in the circumferential direction and the divided iron core 2 located on one side in the circumferential direction thereof. The second end portion 3b on the other side in the circumferential direction of the back yoke 3 is rotatably connected by the fitting convex portion 18.

つぎに、分割鉄心連結体1および分割鉄心2の構造について、図3を参照しつつ説明する。 Next, the structures of the divided iron core connecting body 1 and the divided iron core 2 will be described with reference to FIG.

分割鉄心2は、第1コア片10と第2コア片15とを交互に積層し、カシメなどにより一体化されて構成されている。 The split iron core 2 is configured by alternately stacking the first core piece 10 and the second core piece 15 and integrating them by caulking or the like.

第1コア片10は、円弧状の第1バックヨーク部11と、第1バックヨーク部11の外周面の周方向中央部から径方向外方に突出する第1磁極ティース部12と、からなるT字状に構成されている。嵌合穴13が第1バックヨーク部11の周方向一側の第1端部11aの内径側の部位を貫通して形成されている。 The first core piece 10 is composed of an arc-shaped first back yoke portion 11 and a first magnetic pole tooth portion 12 projecting radially outward from the circumferential central portion of the outer peripheral surface of the first back yoke portion 11. It is configured in a T shape. The fitting hole 13 is formed so as to penetrate a portion on the inner diameter side of the first end portion 11a on one side in the circumferential direction of the first back yoke portion 11.

第2コア片15は、円弧状の第2バックヨーク部16と、第2バックヨーク部16の外周面の周方向中央部から径方向外方に突出する第2磁極ティース部17と、からなるT字状に構成されている。嵌合凸部18が第2バックヨーク部16の周方向他側の第2端部16bの内径側の部位に形成されている。 The second core piece 15 includes an arc-shaped second back yoke portion 16 and a second magnetic pole tooth portion 17 projecting radially outward from the circumferential central portion of the outer peripheral surface of the second back yoke portion 16. It is configured in a T shape. The fitting convex portion 18 is formed at a portion on the inner diameter side of the second end portion 16b on the other side in the circumferential direction of the second back yoke portion 16.

ここで、第1磁極ティース部12と磁極ティース部27は同一形状に形成されている。そこで、第1コア片10と第2コア片15とを交互に積層すると、第1磁極ティース部12と磁極ティース部27は積層方向に整列されて1列に配列され、磁極ティース4を構成する。 Here, the first magnetic pole tooth portion 12 and the magnetic pole tooth portion 27 are formed in the same shape. Therefore, when the first core piece 10 and the second core piece 15 are alternately laminated, the first magnetic pole tooth portion 12 and the magnetic pole tooth portion 27 are aligned in the stacking direction and arranged in a row to form the magnetic pole tooth portion 4. ..

第1バックヨーク部11と第2バックヨーク部16は、第1端部11a,16aおよび第2端部11b,16bの形状が異なる点を除いて同一形状に形成されている。そこで、第1コア片10と第2コア片15とを交互に積層すると、第1バックヨーク部11と第2バックヨーク部16は、周方向の両端部を除いて、積層方向に整列されて1列に配列され、バックヨーク3を構成する。そして、第1バックヨーク部11の第1端部11aが、第2バックヨーク部16の第1端部16aに対して周方向一側に突出し、第2バックヨーク部16の第2端部16bが、第1バックヨーク部11の第2端部11bに対して周方向他側に突出している。 The first back yoke portion 11 and the second back yoke portion 16 are formed to have the same shape except that the shapes of the first end portions 11a and 16a and the second end portions 11b and 16b are different. Therefore, when the first core piece 10 and the second core piece 15 are alternately laminated, the first back yoke portion 11 and the second back yoke portion 16 are aligned in the stacking direction except for both ends in the circumferential direction. They are arranged in a row to form the back yoke 3. Then, the first end portion 11a of the first back yoke portion 11 projects unilaterally in the circumferential direction with respect to the first end portion 16a of the second back yoke portion 16, and the second end portion 16b of the second back yoke portion 16 However, it projects to the other side in the circumferential direction with respect to the second end portion 11b of the first back yoke portion 11.

そこで、一の分割鉄心2の第2コア片15の第2バックヨーク部16の第2端部16bが、周方向他側に位置する分割鉄心2の積層方向に隣り合う第1コア片10の第1バックヨーク部11の第1端部11a間に挿入され、嵌合凸部18が嵌合穴13に嵌め込まれて、2つの分割鉄心2が連結される。このとき、嵌合凸部18の外径が嵌合穴13の内径より僅かに小径に形成され、2つの分割鉄心2が嵌合凸部18を中心として、回転可能に連結される。このように、分割鉄心連結体1は、6つの分割鉄心2を嵌合凸部18周りに回動可能に連結して構成される。 Therefore, the second end portion 16b of the second back yoke portion 16 of the second core piece 15 of the one split iron core 2 is adjacent to the first core piece 10 in the stacking direction of the split core 2 located on the other side in the circumferential direction. It is inserted between the first end portions 11a of the first back yoke portion 11, the fitting convex portion 18 is fitted into the fitting hole 13, and the two split iron cores 2 are connected. At this time, the outer diameter of the fitting convex portion 18 is formed to be slightly smaller than the inner diameter of the fitting hole 13, and the two split iron cores 2 are rotatably connected around the fitting convex portion 18. As described above, the divided iron core connecting body 1 is configured by rotatably connecting the six divided iron cores 2 around the fitting convex portion 18.

なお、分割鉄心連結体1の周方向の一端に位置する分割鉄心2のバックヨーク3の第1端部3aの端面は、積層方向に面一となっており、周方向他側に窪む凹面となっている。一方、分割鉄心連結体1の周方向の他端に位置する分割鉄心2のバックヨーク3の第2端部3bの端面は、積層方向に面一となっており、周方向他側に突出する凸面となっている。そして、一の分割鉄心連結体1の周方向一側に位置するバックヨーク3の第1端部3aの凹面が、その周方向一側に位置する分割鉄心連結体1の周方向他側に位置するバックヨーク3の第2端部3bの凸面に嵌合し、3つの分割鉄心連結体1が円環状に配列される。 The end face of the first end portion 3a of the back yoke 3 of the split iron core 2 located at one end of the split iron core connecting body 1 in the circumferential direction is flush with each other in the stacking direction and is a concave surface recessed on the other side in the circumferential direction. It has become. On the other hand, the end surface of the second end portion 3b of the back yoke 3 of the divided iron core 2 located at the other end of the divided iron core connecting body 1 in the circumferential direction is flush with each other in the stacking direction and projects to the other side in the circumferential direction. It has a convex surface. Then, the concave surface of the first end portion 3a of the back yoke 3 located on one side in the circumferential direction of the one split iron core connecting body 1 is located on the other side in the circumferential direction of the divided iron core connecting body 1 located on one side in the circumferential direction. The back yoke 3 is fitted on the convex surface of the second end portion 3b, and the three divided iron core connecting bodies 1 are arranged in an annular shape.

つぎに、分割鉄心連結体1の製造方法について説明する。
電磁鋼板などのシート材がプレス機に供給される。そして、6つの第2コア片15が、円弧状に配列された状態で打ち抜かれる。ついで、シート材が所定のピッチだけ送られ、6つの第1コア片10が、円弧状に配列された状態で打ち抜かれ、先に打ち抜かれた、円弧状に配列された第2コア片15上に重ねられる。これにより、嵌合凸部18が嵌合穴13に嵌め込まれる。このように、シート材を所定のピッチで送りながら、第1コア片10と第2コア片15とを交互に打ち抜いて、第1コア片10と第2コア片15との積層体を作製する。ついで、第1コア片10と第2コア片15との積層体をカシメ固定することで、分割鉄心連結体1が作製される。
Next, a method for manufacturing the split iron core connector 1 will be described.
Sheet materials such as electrical steel sheets are supplied to the press. Then, the six second core pieces 15 are punched out in a state of being arranged in an arc shape. Then, the sheet material is fed by a predetermined pitch, and the six first core pieces 10 are punched out in a state of being arranged in an arc shape, and are punched out earlier on the second core piece 15 arranged in an arc shape. It is layered on. As a result, the fitting convex portion 18 is fitted into the fitting hole 13. In this way, while feeding the sheet material at a predetermined pitch, the first core piece 10 and the second core piece 15 are alternately punched to produce a laminated body of the first core piece 10 and the second core piece 15. .. Then, by caulking and fixing the laminated body of the first core piece 10 and the second core piece 15, the divided iron core connecting body 1 is produced.

このように、分割鉄心連結体1の構成とすることで、6つの第1コア片10および第2コア片15を円弧状に配列した状態でシート材から打ち抜くことができるので、円環状のコア片を打ち抜く場合に比べて、プレス金型を小さくでき、設備費を削減できるとともに、材料歩留まりが向上され、材料費を削減できる。 In this way, with the configuration of the split iron core connecting body 1, the six first core pieces 10 and the second core pieces 15 can be punched out from the sheet material in a state of being arranged in an arc shape, and thus an annular core. Compared with the case of punching a piece, the press die can be made smaller, the equipment cost can be reduced, the material yield can be improved, and the material cost can be reduced.

分割鉄心連結体1においては、隣り合う分割鉄心2同士が嵌合凸部18周りに回転可能となっている。そこで、図4に示されるように、隣り合う磁極ティース4間が広がるように分割鉄心2を嵌合凸部18周りに回転させ、フライヤ8によりコイル9を磁極ティース4に巻回する。そこで、フライヤ8の軌道がコイル9を巻回している磁極ティース4の隣の磁極ティース4と干渉しないので、フライヤ8による自動巻線が可能となり、設備の自動化が可能となる。また、コイル9のターン数を増やすことができ、回転電機の効率を向上させることができる。 In the divided iron core connecting body 1, adjacent divided iron cores 2 can rotate around the fitting convex portion 18. Therefore, as shown in FIG. 4, the split iron core 2 is rotated around the fitting convex portion 18 so that the space between the adjacent magnetic pole teeth 4 is widened, and the coil 9 is wound around the magnetic pole teeth 4 by the flyer 8. Therefore, since the trajectory of the flyer 8 does not interfere with the magnetic pole tooth 4 adjacent to the magnetic pole tooth 4 around which the coil 9 is wound, automatic winding by the flyer 8 becomes possible, and the equipment can be automated. Further, the number of turns of the coil 9 can be increased, and the efficiency of the rotary electric machine can be improved.

コイル9が各磁極ティース4に巻回された後、分割鉄心2を嵌合凸部18周りに回転させ、分割鉄心連結体1を円弧状に成形する。ついで、3つの分割鉄心連結体1を円環状に配列し、樹脂などにより一体化し、固定子鉄心100が作製される。このように作製された固定子鉄心100は、電動機や発電機に用いられる、アウターロータ型の回転電機に適応される。 After the coil 9 is wound around each magnetic pole tooth 4, the divided iron core 2 is rotated around the fitting convex portion 18, and the divided iron core connecting body 1 is formed into an arc shape. Then, the three divided core connecting bodies 1 are arranged in an annular shape and integrated with a resin or the like to produce the stator core 100. The stator core 100 produced in this way is applied to an outer rotor type rotary electric machine used in an electric motor or a generator.

実施の形態2.
図5はこの発明の実施の形態2に係る回転電機の固定子鉄心を示す平面図、図6はこの発明の実施の形態2に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図、図7はこの発明の実施の形態2に係る回転電機の固定子鉄心を構成する分割鉄心連結体にコイルを巻回する方法を説明する図である。
Embodiment 2.
FIG. 5 is a plan view showing the stator core of the rotary electric machine according to the second embodiment of the present invention, and FIG. 6 is an enlarged view of the split iron core connecting body constituting the stator core of the rotary electric machine according to the second embodiment of the present invention. FIG. 7 is a plan view showing a state in which the positions are linearly arranged, and FIG. 7 is a diagram illustrating a method of winding a coil around a split core connecting body constituting a stator core of a rotary electric machine according to a second embodiment of the present invention. is there.

図5および図6において、嵌合穴19が第1コア片10Aの第1バックヨーク部11の第1端部11aに周方向に延びる長穴にされている。分割鉄心2Aは、第1コア片10Aと第2コア片15とを交互に積層、一体化して構成されている。分割鉄心連結体1Aは、嵌合凸部18を嵌合穴19に嵌合させて、6つの分割鉄心2Aを嵌合凸部18周りに回動可能に連結して構成されている。分割鉄心連結体1Aは、嵌合凸部18が嵌合穴19内を嵌合穴19の長さ方向に往復移動することで、嵌合凸部18が嵌合穴19の周方向の他端に接する縮小位置と、嵌合凸部18が嵌合穴19の周方向の一端に接する拡大位置と、をとるように構成されている。
なお、他の構成は、上記実施の形態1と同様に構成されている。
In FIGS. 5 and 6, the fitting hole 19 is an elongated hole extending in the circumferential direction to the first end portion 11a of the first back yoke portion 11 of the first core piece 10A. The split iron core 2A is configured by alternately stacking and integrating the first core piece 10A and the second core piece 15. The split iron core connecting body 1A is configured by fitting the fitting convex portion 18 into the fitting hole 19 and rotatably connecting the six divided iron cores 2A around the fitting convex portion 18. In the split iron core connecting body 1A, the fitting convex portion 18 reciprocates in the fitting hole 19 in the length direction of the fitting hole 19, so that the fitting convex portion 18 moves to the other end in the circumferential direction of the fitting hole 19. It is configured to take a reduced position in contact with the fitting hole 19 and an enlarged position in which the fitting convex portion 18 is in contact with one end in the circumferential direction of the fitting hole 19.
The other configuration is the same as that of the first embodiment.

このように構成された分割鉄心連結体1Aでは、嵌合凸部18を嵌合穴19の周方向の他端に接する状態とすることで縮小位置となり、嵌合凸部18を嵌合穴19の周方向の一端に接する状態とすることで拡大位置となる。 In the split iron core connecting body 1A configured in this way, the fitting convex portion 18 is brought into contact with the other end in the circumferential direction of the fitting hole 19 to be in a reduced position, and the fitting convex portion 18 is placed in the fitting hole 19. It becomes an enlarged position by making it in contact with one end in the circumferential direction of.

そこで、分割鉄心連結体1Aは、拡大位置とすることで、図6に示されるように、6つの分割鉄心2Aを直線状に配列することができる。そこで、6つの第1コア片10Aと6つの第2コア片15とを、それぞれ直線状に配列した状態で交互に打ち抜いて積層して、第1コア片10Aと第2コア片15との積層体を作製する。ついで、第1コア片10Aと第2コア片15との積層体をカシメ固定することで、分割鉄心連結体1Aが作製される。 Therefore, by setting the split core connecting body 1A to the enlarged position, the six split cores 2A can be linearly arranged as shown in FIG. Therefore, the six first core pieces 10A and the six second core pieces 15 are alternately punched and laminated in a linearly arranged state, and the first core piece 10A and the second core piece 15 are laminated. Make a body. Then, by caulking and fixing the laminated body of the first core piece 10A and the second core piece 15, the split iron core connecting body 1A is produced.

このように、実施の形態2によれば、6つの第1コア片10Aと6つの第2コア片15とを、それぞれ直線状に配列した状態で打ち抜くことができるので、6つの第1コア片10と6つの第2コア片15とを、それぞれ円弧状に配列した状態で打ち抜いている実施の形態1に比べて、材料歩留まりを向上でき、材料費を削減できる。 As described above, according to the second embodiment, the six first core pieces 10A and the six second core pieces 15 can be punched out in a linearly arranged state, so that the six first core pieces can be punched out. Compared with the first embodiment in which the ten and the six second core pieces 15 are punched out in a state of being arranged in an arc shape, the material yield can be improved and the material cost can be reduced.

本分割鉄心連結体1Aにおいては、隣り合う分割鉄心2同士が嵌合凸部18周りに回転可能となっているとともに、嵌合凸部18が嵌合穴19の長さ方向に移動可能となっている。そこで、図7に示されるように、分割鉄心連結体1Aを拡大位置として直線状に配列させ、コイル9が巻回される分割鉄心2Aを縮小位置として、隣り合う磁極ティース4間が広がるように嵌合凸部18周りに回転させ、フライヤ8によりコイル9を磁極ティース4に巻回する。 In the main split iron core connecting body 1A, the adjacent split iron cores 2 can rotate around the fitting convex portion 18, and the fitting convex portion 18 can move in the length direction of the fitting hole 19. ing. Therefore, as shown in FIG. 7, the divided iron core connecting bodies 1A are linearly arranged as the enlarged position, and the divided iron core 2A around which the coil 9 is wound is set as the reduced position so that the adjacent magnetic pole teeth 4 are widened. It is rotated around the fitting convex portion 18, and the coil 9 is wound around the magnetic pole teeth 4 by the flyer 8.

このように、実施の形態2においても、フライヤ8の軌道がコイル9を巻回している磁極ティース4の隣の磁極ティース4と干渉しないので、フライヤ8による自動巻線が可能となり、設備の自動化が可能となる。また、コイル9のターン数を増やすことができ、回転電機の効率を向上させることができる。直線状の分割鉄心2Aを順送しているので、円弧状の分割鉄心を順送する場合に比べて、巻線の設備を製造する際の部材が安価であり、設備費を低減できる。さらに、大きさの異なる鉄心に対しても、同じ直線状の動作となるので、設備の流用が容易であり、多機種の生産の場合に、設備費を低減できる。 As described above, also in the second embodiment, since the trajectory of the flyer 8 does not interfere with the magnetic pole tooth 4 adjacent to the magnetic pole tooth 4 around which the coil 9 is wound, automatic winding by the flyer 8 becomes possible, and the equipment can be automated. Is possible. Further, the number of turns of the coil 9 can be increased, and the efficiency of the rotary electric machine can be improved. Since the linear split iron core 2A is sequentially fed, the member for manufacturing the winding equipment is cheaper and the equipment cost can be reduced as compared with the case where the arc-shaped split iron core is sequentially fed. Further, since the same linear operation is performed even for iron cores of different sizes, it is easy to divert the equipment, and the equipment cost can be reduced in the case of production of many models.

コイル9が各磁極ティース4に巻回された後、分割鉄心2Aを嵌合凸部18周りに回転させ、分割鉄心連結体1Aを円弧状に成形する。ついで、3つの分割鉄心連結体1Aを円環状に配列し、ハウジング(図示せず)を圧入して、円環状の固定子鉄心100Aが作製される。このように作製された固定子鉄心100Aは、電動機や発電機に用いられる、アウターロータ型の回転電機に適応される。なお、実施の形態1と同様に、樹脂を用いて円環状の固定子鉄心110Aを一体化してもよい。 After the coil 9 is wound around each magnetic pole tooth 4, the split iron core 2A is rotated around the fitting convex portion 18, and the split core connecting body 1A is formed into an arc shape. Then, the three divided core connecting bodies 1A are arranged in an annular shape, and a housing (not shown) is press-fitted to produce an annular stator core 100A. The stator core 100A produced in this way is applied to an outer rotor type rotary electric machine used in an electric motor or a generator. In addition, as in the first embodiment, the annular stator core 110A may be integrated by using a resin.

実施の形態3.
図8はこの発明の実施の形態3に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図である。
Embodiment 3.
FIG. 8 is a plan view showing a state in which the divided core connecting bodies constituting the stator core of the rotary electric machine according to the third embodiment of the present invention are arranged in an arc shape as a reduced position.

図8において、6つの分割鉄心2Bが、縮小位置とし、嵌合凸部18周りに回転させて円弧状に配列された状態において、一の分割鉄心2Bのバックヨーク3の第1端部3aと、その周方向一側に位置する分割鉄心2Aのバックヨーク3の第2端部3bとの重なり領域を積層方向に貫通するピン挿入孔20が形成されている。そして、固定ピン21がピン挿入孔20に圧入されて、分割鉄心連結体1Bを構成する6つの分割鉄心2Bが円弧状に配列された状態に保持される。 In FIG. 8, the six divided iron cores 2B are arranged in an arc shape by rotating around the fitting convex portion 18 in the reduced position, and the six divided iron cores 2B and the first end portion 3a of the back yoke 3 of the one divided iron core 2B. A pin insertion hole 20 is formed which penetrates the overlapping region of the back yoke 3 of the split iron core 2A located on one side in the circumferential direction with the second end portion 3b in the stacking direction. Then, the fixing pin 21 is press-fitted into the pin insertion hole 20, and the six divided iron cores 2B constituting the divided iron core connecting body 1B are held in a state of being arranged in an arc shape.

なお、実施の形態3は、隣り合う分割鉄心2Bの一方のバックヨーク3の第1端部3aと他方のバックヨーク3の第2端部3bとの重なり領域を貫通するピン挿入孔20を備え、固定ピン21をピン挿入孔29に差し込んで、隣り合う分割鉄心2Bが固定されている点を除いて、上記実施の形態2と同様に構成されている。 The third embodiment includes a pin insertion hole 20 that penetrates an overlapping region between the first end 3a of one back yoke 3 of the adjacent split iron cores 2B and the second end 3b of the other back yoke 3. , The structure is the same as that of the second embodiment except that the fixing pin 21 is inserted into the pin insertion hole 29 and the adjacent split iron cores 2B are fixed.

実施の形態3では、分割鉄心2Bが第1コア片と第2コア片とを交互に積層して構成されている。分割鉄心連結体1Bを構成する6つの分割鉄心2Bが嵌合凸部18周りに回転可能に連結されている。さらに、嵌合凸部18が嵌合穴19にその長手方向に往復移動可能に嵌合され、分割鉄心2Bが隣の分割鉄心2Bに対して縮小位置と拡大位置とをとるように連結されている。したがって、実施の形態3においても、上記実施の形態2と同様の効果が得られる。 In the third embodiment, the split iron core 2B is configured by alternately stacking the first core piece and the second core piece. Six divided iron cores 2B constituting the divided iron core connecting body 1B are rotatably connected around the fitting convex portion 18. Further, the fitting convex portion 18 is fitted into the fitting hole 19 so as to be reciprocally movable in the longitudinal direction thereof, and the split iron core 2B is connected so as to take a reduced position and an enlarged position with respect to the adjacent divided iron core 2B. There is. Therefore, the same effect as that of the second embodiment can be obtained in the third embodiment.

実施の形態3によれば、分割鉄心連結体1Bの隣り合う分割鉄心2Bが、縮小位置で、円弧状に配列した状態で、固定ピン21により固定されている。そこで、分割鉄心連結体1B内での分割鉄心2Bの位置が固定されるので、3つの分割鉄心連結体1Bを円環状に配列して構成された固定子鉄心内にハウジング(図示せず)を圧入しても、真円度の悪化が抑制される。また、固定子鉄心内にハウジングを圧入することで、固定子鉄心の径を拡大させる力が発生し、隣り合う分割鉄心2Bを離間させるように作用する。しかし、この隣り合う分割鉄心2B間を離間させる力が、固定ピン21により受けられ、隣り合う分割鉄心2Bの離間が阻止される。 According to the third embodiment, the adjacent divided iron cores 2B of the divided iron core connecting body 1B are fixed by the fixing pin 21 in a state of being arranged in an arc shape at the reduced position. Therefore, since the position of the divided core 2B in the divided core connecting body 1B is fixed, a housing (not shown) is placed in the stator core formed by arranging the three divided core connecting bodies 1B in an annular shape. Even if press-fitting is performed, deterioration of roundness is suppressed. Further, by press-fitting the housing into the stator core, a force for expanding the diameter of the stator core is generated, which acts to separate the adjacent split cores 2B. However, the force for separating the adjacent split cores 2B is received by the fixing pin 21, and the separation between the adjacent split cores 2B is prevented.

これにより、固定子鉄心の真円度が確保され、回転電機の効率を向上できる。また、隣り合う分割鉄心2B間に隙間が形成されないので、回転電機の動作時に、分割鉄心2Bの振動が抑制され、騒音の発生が抑えられる。さらに、固定子鉄心と回転子が同じハウジングに保持されるので、固定子鉄心と回転子との同心度が高められ、回転電機の動作時の振動の発生を一層抑制できる。 As a result, the roundness of the stator core is ensured, and the efficiency of the rotary electric machine can be improved. Further, since a gap is not formed between the adjacent split cores 2B, the vibration of the split cores 2B is suppressed during the operation of the rotary electric machine, and the generation of noise is suppressed. Further, since the stator core and the rotor are held in the same housing, the concentricity between the stator core and the rotor can be increased, and the generation of vibration during the operation of the rotating electric machine can be further suppressed.

なお、上記実施の形態3では、実施の形態2による分割鉄心連結体が円弧状に配列している状態で、隣り合う分割鉄心を固定ピンにより固定しているが、実施の形態1による分割鉄心連結体が円弧状に配列している状態で、隣り合う分割鉄心を固定ピンにより固定してもよい。 In the third embodiment, the divided iron cores according to the second embodiment are arranged in an arc shape, and the adjacent divided iron cores are fixed by fixing pins. However, the divided iron cores according to the first embodiment are fixed. Adjacent split iron cores may be fixed by fixing pins in a state where the connected bodies are arranged in an arc shape.

実施の形態4.
図9はこの発明の実施の形態4に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図、図10はこの発明の実施の形態4に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図である。
Embodiment 4.
FIG. 9 is a plan view showing a state in which the split iron core connectors constituting the stator core of the rotary electric machine according to the fourth embodiment of the present invention are arranged in an arc shape with the reduced positions, and FIG. 10 is the fourth embodiment of the present invention. It is a top view which shows the state which linearly arranged the divided iron core connecting body which comprises the stator core of the rotary electric machine which concerns on the above.

図9および図10において、突起部23が、第1コア片10Cの第1バックヨーク部11の第1端部11aの周方向側面から周方向一側に突出するように形成されている。突起部23は、第1バックヨーク部11の第1端部11aに形成された嵌合穴19より外径側に位置している。窪み部24が、第1コア片10Cの第1バックヨーク部11の第2端部11bの周方向縁部に周方向一側に窪んで、突起部23が嵌合可能な穴形状に形成されている。突起部23は、突起部23と同じ径方向位置に形成されている。ここで、径方向位置とは、固定子鉄心の軸心を中心とする当該軸心と直交する方向の位置である。 In FIGS. 9 and 10, the protrusion 23 is formed so as to project from the circumferential side surface of the first back yoke portion 11 of the first core piece 10C to one side in the circumferential direction. The protruding portion 23 is located on the outer diameter side of the fitting hole 19 formed in the first end portion 11a of the first back yoke portion 11. The recessed portion 24 is recessed in the circumferential direction of the second end portion 11b of the first back yoke portion 11 of the first core piece 10C in the circumferential direction, and the protrusion portion 23 is formed in a hole shape into which the protrusion portion 23 can be fitted. ing. The protrusion 23 is formed at the same radial position as the protrusion 23. Here, the radial position is a position in a direction orthogonal to the axial center of the stator core.

なお、実施の形態4は、突起部23および窪み部24を第1コア片10Cに形成されている点を除いて、上記実施の形態2と同様に形成されている。 The fourth embodiment is formed in the same manner as the second embodiment except that the protrusion 23 and the recess 24 are formed in the first core piece 10C.

分割鉄心2Cは、第1コア片10Cと第2コア片15とを交互に積層、一体化して構成されている。分割鉄心連結体1Cは、嵌合凸部18を嵌合穴19に嵌合させて、6つの分割鉄心2Cを嵌合凸部18周りに回動可能に連結して構成されている。隣り合う分割鉄心2Cは、嵌合凸部18が嵌合穴19内をその長手方向に往復移動し、縮小位置と拡大位置とをとるように連結されている。
したがって、実施の形態4においても、上記実施の形態2と同様の効果が得られる。
The divided iron core 2C is configured by alternately stacking and integrating the first core piece 10C and the second core piece 15. The split iron core connecting body 1C is configured by fitting the fitting convex portion 18 into the fitting hole 19 and rotatably connecting the six divided iron cores 2C around the fitting convex portion 18. The adjacent split iron cores 2C are connected so that the fitting convex portion 18 reciprocates in the fitting hole 19 in the longitudinal direction and takes a reduced position and an enlarged position.
Therefore, the same effect as that of the second embodiment can be obtained in the fourth embodiment.

分割鉄心連結体1Cでは、図10に示されるように、嵌合凸部18が嵌合穴19の周方向の一端に接して、隣り合う分割鉄心2Cが拡大位置をとり、6つの分割鉄心2Cが直線状に配列された状態となる。また、図9に示されるように、嵌合凸部18が嵌合穴19の周方向の他端に接して、隣り合う分割鉄心2Cが縮小位置をとり、分割鉄心2Cを嵌合凸部18周りに回動させて突起部23が窪み部24に嵌合させ、6つの分割鉄心2Cが円弧状に配列された状態となる。 In the split core connecting body 1C, as shown in FIG. 10, the fitting convex portion 18 is in contact with one end in the circumferential direction of the fitting hole 19, and the adjacent split cores 2C take an enlarged position, and the six split cores 2C Are arranged in a straight line. Further, as shown in FIG. 9, the fitting convex portion 18 is in contact with the other end of the fitting hole 19 in the circumferential direction, the adjacent split iron cores 2C take a reduced position, and the split iron core 2C is fitted into the fitting convex portion 18. The protrusions 23 are fitted into the recesses 24 by rotating them around, and the six divided iron cores 2C are arranged in an arc shape.

このように、6つの分割鉄心2Cが円弧状に配列された状態では、分割鉄心連結体1C内での分割鉄心2Cの位置が固定される。そこで、3つの分割鉄心連結体1Cを円環状に配列して構成された固定子鉄心内にハウジング(図示せず)を圧入しても、真円度の悪化が抑制される。また、固定子鉄心内にハウジングを圧入することで発生する固定子鉄心の径を拡大させる力が、突起部23と窪み部24との嵌合部で受けられ、隣り合う分割鉄心2Cの離間が阻止される。これにより、固定子鉄心の真円度が確保され、回転電機の効率を向上できる。また、隣り合う分割鉄心2C間に隙間が形成されないので、回転電機の動作時に、分割鉄心2Cの振動が抑制され、騒音の発生が抑えられる。さらに、固定子鉄心と回転子が同じハウジングに保持されるので、固定子鉄心と回転子との同心度が高められ、回転電機の動作時の振動の発生を一層抑制できる。 In this way, in the state where the six divided iron cores 2C are arranged in an arc shape, the positions of the divided iron cores 2C in the divided iron core connecting body 1C are fixed. Therefore, even if the housing (not shown) is press-fitted into the stator core formed by arranging the three divided core connecting bodies 1C in an annular shape, the deterioration of roundness is suppressed. Further, the force for expanding the diameter of the stator core generated by press-fitting the housing into the stator core is received at the fitting portion between the protrusion 23 and the recess 24, and the adjacent split cores 2C are separated from each other. Be blocked. As a result, the roundness of the stator core is ensured, and the efficiency of the rotary electric machine can be improved. Further, since no gap is formed between the adjacent split iron cores 2C, the vibration of the split iron cores 2C is suppressed during the operation of the rotary electric machine, and the generation of noise is suppressed. Further, since the stator core and the rotor are held in the same housing, the concentricity between the stator core and the rotor can be increased, and the generation of vibration during the operation of the rotating electric machine can be further suppressed.

なお、上記実施の形態4では、突起部が、第1コア片のバックヨーク部の第1端部に形成され、窪み部が、第1コア片のバックヨーク部の第2端部に形成されているが、突起部が、第1コア片のバックヨーク部の第2端部に形成され、窪み部が、第1コア片のバックヨーク部の第1端部に形成されてもよい。
また、上記実施の形態4では、突起部および窪み部が第1コア片のバックヨーク部に形成されているが、突起部および窪み部は、第2コア片のバックヨーク部に形成されてもよく、第1コア片と第2コア片のバックヨーク部に形成されてもよい。
In the fourth embodiment, the protrusion is formed at the first end of the back yoke portion of the first core piece, and the recess is formed at the second end of the back yoke portion of the first core piece. However, a protrusion may be formed at the second end of the back yoke portion of the first core piece, and a recess may be formed at the first end of the back yoke portion of the first core piece.
Further, in the fourth embodiment, the protrusion and the recess are formed in the back yoke portion of the first core piece, but the protrusion and the recess may be formed in the back yoke portion of the second core piece. Often, it may be formed on the back yoke portion of the first core piece and the second core piece.

また、上記実施の形態4では、実施の形態2による分割鉄心において、突起部および窪み部を第1コア片に形成しているが、実施の形態1による分割鉄心において、突起部および窪み部を第1コア片に形成してもよい。 Further, in the fourth embodiment, the protrusion and the recess are formed in the first core piece in the split iron core according to the second embodiment, but in the split iron core according to the first embodiment, the protrusion and the recess are formed. It may be formed on the first core piece.

実施の形態5.
図11はこの発明の実施の形態5に係る回転電機の固定子鉄心を構成する分割鉄心連結体を縮小位置として円弧状に配列した状態を示す平面図、図12はこの発明の実施の形態5に係る回転電機の固定子鉄心を構成する分割鉄心連結体を拡大位置として直線状に配列した状態を示す平面図、図13は図11に示される分割鉄心連結体の上端の第1コア片を取り除いた状態を示す正面図、図14はこの発明の実施の形態5に係る回転電機の固定子鉄心における第2コア片を示す正面図、図15はこの発明の実施の形態5に係る回転電機の固定子鉄心における第1コア片を示す正面図である。
Embodiment 5.
FIG. 11 is a plan view showing a state in which the split iron core connectors constituting the stator core of the rotary electric machine according to the fifth embodiment of the present invention are arranged in an arc shape with the reduced positions, and FIG. 12 is the fifth embodiment of the present invention. FIG. 13 is a plan view showing a state in which the divided core connecting bodies constituting the stator core of the rotary electric machine according to the above are linearly arranged as enlarged positions, and FIG. 13 shows the first core piece at the upper end of the divided iron core connecting body shown in FIG. A front view showing the removed state, FIG. 14 is a front view showing a second core piece in the stator core of the stator core of the rotary electric machine according to the fifth embodiment of the present invention, and FIG. 15 is a front view showing the second core piece of the stator core according to the fifth embodiment of the present invention. It is a front view which shows the 1st core piece in the stator core of.

なお、磁極である分割鉄心の磁極ティースの周方向幅の中心が磁極中心となる。隣り合う磁極中心間の中央が磁極間中心となる。磁極間中心を示す磁極間中心線は、固定子鉄心を分割鉄心の個数等分する直線である。図14および図15では、便宜的に、1磁極を明示する2つの磁極間中心線を第1磁極間中心線A1と第2磁極間中心線A2とした。 The center of the circumferential width of the magnetic pole teeth of the split iron core, which is the magnetic pole, is the center of the magnetic pole. The center between adjacent magnetic pole centers is the center between magnetic poles. The center line between magnetic poles indicating the center between magnetic poles is a straight line that divides the stator core into equal numbers of divided iron cores. In FIGS. 14 and 15, for convenience, the two inter-magnetic center lines that clearly indicate one magnetic pole are designated as the first inter-magnetic center line A1 and the second inter-magnetic center line A2.

図14において、第1窪み部61が、第2コア片15Dの第2バックヨーク部16の第1端部16aに、後述する第2突起部72が嵌合可能な穴形状に形成されている。第1窪み部61の内周面が、第1円弧部51を構成している。第1円弧部51は、第2突起部72が第1窪み部61に嵌合された時の嵌合凸部18の軸心を中心とする円弧面であり、半周以上の周長を有している。第1突起部71が、第1窪み部61の内径側に第1磁極間中心線A1から周方向一側に突出するように形成されている。第3突起部73が、第1窪み部61の外径側に第1磁極間中心線A1から周方向一側に突出するように形成されている。第3突起部73の外径側の面が、第3円弧部53を構成している。第3円弧部53は、第2突起部72が第1窪み部61に嵌合された時の嵌合凸部18の軸心を中心とする円弧面であり、第1磁極間中心線A1から周方向一側に延びている。 In FIG. 14, the first recessed portion 61 is formed in a hole shape into which a second protrusion 72, which will be described later, can be fitted into the first end portion 16a of the second back yoke portion 16 of the second core piece 15D. .. The inner peripheral surface of the first recessed portion 61 constitutes the first arc portion 51. The first arc portion 51 is an arc surface centered on the axis of the fitting convex portion 18 when the second protrusion 72 is fitted into the first recess 61, and has a peripheral length of half or more. ing. The first protrusion 71 is formed so as to project from the center line A1 between the first magnetic poles to one side in the circumferential direction on the inner diameter side of the first recess 61. The third protrusion 73 is formed on the outer diameter side of the first recess 61 so as to protrude from the center line A1 between the first magnetic poles in the circumferential direction. The outer diameter side surface of the third protrusion 73 constitutes the third arc portion 53. The third arc portion 53 is an arc surface centered on the axis of the fitting convex portion 18 when the second protruding portion 72 is fitted into the first recessed portion 61, and is from the center line A1 between the first magnetic poles. It extends to one side in the circumferential direction.

第1突起部71の内周面が、第5円弧部55を構成している。第2バックヨーク部16の第5円弧部を除く内周面が第6円弧部56を構成している。第6円弧部56は、固定子鉄心の軸心を中心とする円弧面である。第5円弧部55は、第6円弧部56の曲率半径より小さい曲率半径の円弧面であり、第6円弧部56より内径側に位置している。 The inner peripheral surface of the first protrusion 71 constitutes the fifth arc portion 55. The inner peripheral surface of the second back yoke portion 16 excluding the fifth arc portion constitutes the sixth arc portion 56. The sixth arc portion 56 is an arc surface centered on the axis of the stator core. The fifth arc portion 55 is an arc surface having a radius of curvature smaller than the radius of curvature of the sixth arc portion 56, and is located on the inner diameter side of the sixth arc portion 56.

第2突起部72が、第2コア片15Dの第2バックヨーク部16の第2端部16bに、第1窪み部61に嵌合可能な形状に形成されている。嵌合凸部18が、第2突起部72に形成され、その軸心が第2磁極間中心線A2上に位置している。第2突起部72の外周面が、第2円弧部52を構成している。第2円弧部52は、嵌合凸部18の軸心を中心とする円弧面であり、半周以上の周長を有している。第2窪み部62が、第2突起部72の内径側に第2磁極間中心線A2から周方向一側に窪んで、第1突起部71が嵌合可能な穴形状に形成されている。さらに、第3窪み部63が、第2突起部72の外径側に第2磁極間中心線A2から周方向一側に窪んで、第3突起部73が嵌合可能な穴形状に形成されている。第3窪み部63の外径側の面が、第4円弧部54を構成している、第4円弧部54は、嵌合凸部18の軸心を中心とする円弧面であり、第2磁極間中心線A2から周方向一側に延びている。 The second protrusion 72 is formed at the second end 16b of the second back yoke portion 16 of the second core piece 15D so as to be fitted into the first recess 61. The fitting convex portion 18 is formed on the second projection portion 72, and its axis is located on the second magnetic pole center line A2. The outer peripheral surface of the second protrusion 72 constitutes the second arc portion 52. The second arc portion 52 is an arc surface centered on the axis of the fitting convex portion 18, and has a peripheral length of half or more. The second recess 62 is recessed on the inner diameter side of the second protrusion 72 from the center line A2 between the second magnetic poles to one side in the circumferential direction, and the first protrusion 71 is formed in a hole shape into which the first protrusion 71 can be fitted. Further, the third recessed portion 63 is recessed on the outer diameter side of the second protrusion 72 from the center line A2 between the second magnetic poles to one side in the circumferential direction, and the third protrusion 73 is formed in a hole shape into which the third protrusion 73 can be fitted. ing. The outer diameter side surface of the third recessed portion 63 constitutes the fourth arcuate portion 54. The fourth arcuate portion 54 is an arcuate surface centered on the axial center of the fitting convex portion 18, and is the second arc surface. It extends from the center line A2 between the magnetic poles to one side in the circumferential direction.

図15において、第4突起部74が、第1コア片10Dの第1バックヨーク部11の第1端部11aに形成されている。嵌合穴19が、その周方向の他端に接する嵌合凸部18の軸心が第1磁極間中心線A1上に位置するように、第4突起部74に形成されている。第4突起部74の外周面の一部が、第7円弧部57を構成している。第7円弧部57は、嵌合穴19の周方向の他端に接する嵌合凸部18の軸心を中心とする円弧面である。第5窪み部65が、第4突起部74の外径側に第1磁極間中心線A1から周方向他側に窪む形状に形成されている。第5窪み部65の外径側の面が、第9円弧部59を構成している、第9円弧部59は、嵌合穴19の周方向の他端に接する嵌合凸部18の軸心を中心とする円弧面であり、第1磁極間中心線A1から周方向他側に延びている。 In FIG. 15, the fourth protrusion 74 is formed on the first end portion 11a of the first back yoke portion 11 of the first core piece 10D. The fitting hole 19 is formed in the fourth protrusion 74 so that the axis of the fitting convex portion 18 in contact with the other end in the circumferential direction is located on the center line A1 between the first magnetic poles. A part of the outer peripheral surface of the fourth protrusion 74 constitutes the seventh arc portion 57. The seventh arc portion 57 is an arc surface centered on the axis of the fitting convex portion 18 in contact with the other end of the fitting hole 19 in the circumferential direction. The fifth recessed portion 65 is formed so as to be recessed on the outer diameter side of the fourth protrusion 74 from the center line A1 between the first magnetic poles to the other side in the circumferential direction. The outer diameter side surface of the fifth recessed portion 65 constitutes the ninth arc portion 59, and the ninth arc portion 59 is the axis of the fitting convex portion 18 in contact with the other end in the circumferential direction of the fitting hole 19. It is an arcuate surface centered on the center and extends from the center line A1 between the first magnetic poles to the other side in the circumferential direction.

第4窪み部64が、第1コア片10Dの第1バックヨーク部11の第2端部11bに、第2磁極間中心線A2から周方向一側に窪んで、第4突起部74が嵌合可能な穴形状に形成されている。第4窪み部64の内周面の一部が、第8円弧部58を構成している。第8円弧部58は、第4突起部74が第4窪み部64に嵌合された時の、嵌合穴19の周方向の他端に接する嵌合凸部18の軸心を中心とする円弧面である。第5突起部75が、第4窪み部64の外径側に第2磁極間中心線A2から周方向他側に突出して、第5窪み部65に嵌合可能な形状に形成されている。第5突起部75の外径側の面が、第10円弧部60を構成している。第10円弧部60は、第4突起部74が第4窪み部64に嵌合された時の、嵌合穴19の周方向の他端に接する嵌合凸部18の軸心を中心とする円弧面であり、第2磁極間中心線A2から周方向他側に延びている。
なお、他の構成は、上記実施の形態2と同様に構成されている。
The fourth recessed portion 64 is recessed in the second end portion 11b of the first back yoke portion 11 of the first core piece 10D in the circumferential direction from the center line A2 between the second magnetic poles, and the fourth protruding portion 74 is fitted. It is formed in a hole shape that can be fitted. A part of the inner peripheral surface of the fourth recessed portion 64 constitutes the eighth arc portion 58. The eighth arc portion 58 is centered on the axial center of the fitting convex portion 18 in contact with the other end in the circumferential direction of the fitting hole 19 when the fourth protrusion 74 is fitted into the fourth recess 64. It is an arc surface. The fifth protrusion 75 projects from the center line A2 between the second magnetic poles to the other side in the circumferential direction on the outer diameter side of the fourth recess 64, and is formed in a shape that can be fitted to the fifth recess 65. The outer diameter side surface of the fifth protrusion 75 constitutes the tenth arc portion 60. The tenth arc portion 60 is centered on the axial center of the fitting convex portion 18 in contact with the other end in the circumferential direction of the fitting hole 19 when the fourth protrusion 74 is fitted into the fourth recess 64. It is an arcuate surface and extends from the center line A2 between the second magnetic poles to the other side in the circumferential direction.
The other configuration is the same as that of the second embodiment.

分割鉄心2Dは、第1コア片10Dと第2コア片15Dとを交互に積層、一体化して構成されている。分割鉄心連結体1Dは、嵌合凸部18を嵌合穴19に嵌合させて、6つの分割鉄心2Dを嵌合凸部18周りに回動可能に連結して構成されている。隣り合う分割鉄心2Dは、嵌合凸部18が嵌合穴19内をその長手方向に往復移動し、縮小位置と拡大位置とをとるように連結されている。 The divided iron core 2D is configured by alternately stacking and integrating the first core piece 10D and the second core piece 15D. The split iron core connecting body 1D is configured by fitting the fitting convex portion 18 into the fitting hole 19 and rotatably connecting the six divided iron cores 2D around the fitting convex portion 18. The adjacent split iron cores 2D are connected so that the fitting convex portion 18 reciprocates in the fitting hole 19 in the longitudinal direction and takes a reduced position and an enlarged position.

分割鉄心連結体1Dでは、図12に示されるように、嵌合凸部18が嵌合穴19の周方向の一端に接して、隣り合う分割鉄心2Dが拡大位置をとり、6つの分割鉄心2Dが直線状に配列された状態となる。また、図11および図13に示されるように、第2突起部72を第1窪み部61に嵌合させ、嵌合凸部18が嵌合穴19の周方向の他端に接して、隣り合う分割鉄心2Dが縮小位置をとる。そして、分割鉄心2Dを嵌合凸部18周りに回転させて、第3突起部73を第3窪み部63に嵌合させ、かつ第5突起部75を第5窪み部65に嵌合させて、6つの分割鉄心2Dが円弧状に円弧状に配列される。円弧状に配列された3つの分割鉄心連結体1Dを円環状に配列し、固定子鉄心が得られる。
したがって、実施の形態5においても、上記実施の形態2と同様の効果が得られる。
In the split core connecting body 1D, as shown in FIG. 12, the fitting convex portion 18 is in contact with one end of the fitting hole 19 in the circumferential direction, the adjacent split cores 2D take an enlarged position, and the six split cores 2D Are arranged in a straight line. Further, as shown in FIGS. 11 and 13, the second protrusion 72 is fitted into the first recess 61, and the fitting protrusion 18 is in contact with the other end of the fitting hole 19 in the circumferential direction and is adjacent to the fitting hole 19. The matching split iron core 2D takes a reduced position. Then, the split iron core 2D is rotated around the fitting convex portion 18, the third protrusion 73 is fitted into the third recess 63, and the fifth protrusion 75 is fitted into the fifth recess 65. , Six divided iron cores 2D are arranged in an arc shape. The stator cores are obtained by arranging the three divided core connecting bodies 1D arranged in an arc shape in an annular shape.
Therefore, even in the fifth embodiment, the same effect as that of the second embodiment can be obtained.

第1コア片10Dにおいては、分割鉄心2Dが縮小位置に位置しているときに、第5突起部75が第5窪み部65に嵌合している。第2コア片15Dにおいては、分割鉄心2Dが縮小位置に位置しているときに、第2突起部72が第1窪み部61に嵌合し、第1突起部71が第2窪み部62に嵌合する。この嵌合構造は、隣り合う分割鉄心2Dを周方向に離間させる力を受けることができる。このように、6つの分割鉄心2Dが円弧状に配列された状態では、分割鉄心連結体1D内での分割鉄心2Dの位置が固定される。 In the first core piece 10D, the fifth protrusion 75 is fitted into the fifth recess 65 when the split iron core 2D is located at the reduced position. In the second core piece 15D, when the split iron core 2D is located at the reduced position, the second protrusion 72 fits into the first recess 61, and the first protrusion 71 fits into the second recess 62. Fit. This fitting structure can receive a force that separates adjacent split iron cores 2D in the circumferential direction. In this way, in the state where the six divided iron cores 2D are arranged in an arc shape, the position of the divided iron core 2D in the divided iron core connecting body 1D is fixed.

そこで、固定子鉄心をハウジング(図示せず)に圧入しても、固定子鉄心の真円度が確保され、回転電機の効率を向上できる。固定子鉄心内にハウジングを圧入することで発生する固定子鉄心の径を拡大させる力が、上述の嵌合構造で受けられ、分割鉄心2D間の隙間の発生が抑制される。これにより、隣り合う分割鉄心2Dの間に隙間が形成されないので、回転電機の動作時に、分割鉄心2Dの振動が抑制され、騒音の発生が抑えられる。さらに、固定子鉄心と回転子が同じハウジングに保持されるので、固定子鉄心と回転子との同心度が高められ、回転電機の動作時の振動の発生を一層抑制できる。また、分割鉄心2Dが縮小位置に位置する状態で、分割鉄心2Dを嵌合凸部18周りに回転できるので、コイルを磁極ティース4に巻回した後、分割鉄心2Dを円弧状に配列させることができる。 Therefore, even if the stator core is press-fitted into the housing (not shown), the roundness of the stator core is ensured and the efficiency of the rotary electric machine can be improved. The force for expanding the diameter of the stator core generated by press-fitting the housing into the stator core is received by the above-mentioned fitting structure, and the generation of a gap between the split cores 2D is suppressed. As a result, no gap is formed between the adjacent split cores 2D, so that the vibration of the split cores 2D is suppressed during the operation of the rotary electric machine, and the generation of noise is suppressed. Further, since the stator core and the rotor are held in the same housing, the concentricity between the stator core and the rotor can be increased, and the generation of vibration during the operation of the rotating electric machine can be further suppressed. Further, since the split core 2D can be rotated around the fitting convex portion 18 in the state where the split core 2D is located at the reduced position, the split core 2D is arranged in an arc shape after winding the coil around the magnetic pole teeth 4. Can be done.

また、分割鉄心2Dが縮小位置に位置しているときに、第3突起部73が第3窪み部63に嵌合する。この嵌合構造は、第1円弧部51および第2円弧部52の曲率変形が小さい場合でも、隣り合う分割鉄心2Dを周方向に離間させるのを阻止するように機能するので、分割鉄心2D間の隙間の発生が抑制される。回転電機の動作時に、分割鉄心2Dの振動が抑制され、騒音の発生が抑えられる。 Further, when the split iron core 2D is located at the reduced position, the third protrusion 73 fits into the third recess 63. Since this fitting structure functions to prevent the adjacent split cores 2D from being separated in the circumferential direction even when the curvature deformation of the first arc portion 51 and the second arc portion 52 is small, the space between the split cores 2D The generation of gaps is suppressed. During the operation of the rotary electric machine, the vibration of the split iron core 2D is suppressed, and the generation of noise is suppressed.

第5円弧部55がバックヨーク3の内周面を構成する第6円弧部より内径側に位置している。そこで、固定子鉄心をハウジング(図示せず)に圧入した場合、第1突起部71が外径側に変位し、第2突起部72と第1窪み部61との嵌合強度が高められ、分割鉄心2D間の離間が抑制される。 The fifth arc portion 55 is located on the inner diameter side of the sixth arc portion forming the inner peripheral surface of the back yoke 3. Therefore, when the stator core is press-fitted into the housing (not shown), the first protrusion 71 is displaced to the outer diameter side, and the fitting strength between the second protrusion 72 and the first recess 61 is increased. The separation between the divided iron cores 2D is suppressed.

第1コア片10Dにおいては、分割鉄心2Dが縮小位置に位置しているときに、第4突起部74が第4窪み部64に嵌合する。この嵌合構造によれば、第1コア片10Dおよび第2コア片15Dを直線状に配列した状態で打ち抜いて得られる分割鉄心2Dが拡大位置となる分割鉄心連結体を、分割鉄心2Dが縮小位置となる分割鉄心連結体に容易に変位させることができる。また、縮小位置に位置している分割鉄心2Dを嵌合凸部18周りに回転させることができる。 In the first core piece 10D, when the split iron core 2D is located at the reduced position, the fourth protrusion 74 fits into the fourth recess 64. According to this fitting structure, the split core 2D reduces the split core 2D in which the split core 2D obtained by punching the first core piece 10D and the second core piece 15D in a linear arrangement is the enlarged position. It can be easily displaced to the split iron core connecting body to be the position. Further, the split iron core 2D located at the reduced position can be rotated around the fitting convex portion 18.

また、分割鉄心2Dが縮小位置に位置しているときに、第5突起部75が第5窪み部65に嵌合する。この嵌合構造によれば、第1コア片10Dの第3突起部73と第2コア片15Dの第5突起部75とが交互に積層されるので、隣り合う分割鉄心2D間の積層方法のずれが抑制される。 Further, when the split iron core 2D is located at the reduced position, the fifth protrusion 75 fits into the fifth recess 65. According to this fitting structure, the third protrusion 73 of the first core piece 10D and the fifth protrusion 75 of the second core piece 15D are alternately laminated, so that the method of laminating between adjacent split iron cores 2D can be used. The deviation is suppressed.

なお、上記各実施の形態では、分割鉄心連結体が6つの分割鉄心を嵌合凸部周りに回転可能に連結して構成されているが、分割鉄心連結体を構成する分割鉄心の個数は6個に限定されない。
また、上記各実施の形態では、固定子鉄心が18個の分割鉄心により構成されているが、固定子鉄心を構成する分割鉄心の個数は、18個に限定されない。
In each of the above embodiments, the divided core connecting body is configured by rotatably connecting six divided iron cores around the fitting convex portion, but the number of divided iron cores constituting the divided iron core connecting body is six. Not limited to individuals.
Further, in each of the above embodiments, the stator core is composed of 18 split cores, but the number of split cores constituting the stator core is not limited to 18.

1,1A,1B,1C,1D 分割鉄心連結体、2,2A,2B,2C,2D 分割鉄心、3 バックヨーク、3a 第1端部、3b 第2端部、4 磁極ティース、10,10A,10C,10D 第1コア片、11 第1バックヨーク部、12 第1磁極ティース部、13,19 嵌合穴、15,15D 第2コア片、16 第2バックヨーク部、17 第2磁極ティース部、18 嵌合凸部、20 ピン挿入孔、21 固定ピン、23 突起部、24 窪み部、51 第1円弧部、52 第2円弧部、53 第3円弧部、54 第4円弧部、57 第7円弧部、58 第8円弧部、59 第9円弧部、60 第10円弧部、61 第1窪み部、62 第2窪み部、63 第3窪み部、64 第4窪み部、65 第5窪み部、71 第1突起部、72 第2突起部、74 第4突起部、75 第5突起部。 1,1A, 1B, 1C, 1D split core connector, 2,2A, 2B, 2C, 2D split core, 3 back yoke, 3a 1st end, 3b 2nd end, 4 magnetic pole teeth, 10,10A, 10C, 10D 1st core piece, 11 1st back yoke part, 12 1st magnetic pole tooth part, 13, 19 fitting holes, 15, 15D 2nd core piece, 16 2nd back yoke part, 17 2nd magnetic pole tooth part , 18 Fitting convex part, 20 pin insertion hole, 21 fixing pin, 23 protrusion part, 24 recess part, 51 first arc part, 52 second arc part, 53 third arc part, 54 fourth arc part, 57th 7 arcs, 58 8th arcs, 59 9th arcs, 60 10th arcs, 61 1st dents, 62 2nd dents, 63 3rd dents, 64 4th dents, 65 5th dents Part, 71 1st protrusion, 72 2nd protrusion, 74 4th protrusion, 75 5th protrusion.

Claims (5)

それぞれ、バックヨークおよび前記バックヨークの周方向中央部から径方向外方に突出した磁極ティースを有する複数の分割鉄心を連結して円弧状に配列した分割鉄心連結体を複数有し、複数の前記分割鉄心連結体を円環状に配列して構成される回転電機の固定子鉄心において、
前記バックヨークは、嵌合穴を有する周方向の一側の第1端部と、嵌合凸部を有する周方向の他側の第2端部と、を有し、
前記分割鉄心は、交互に積層されている第1コア片と第2コア片により構成され、
前記第1コア片は、第1バックヨーク部と第1磁極ティース部を有し、
前記第2コア片は、前記第1バックヨーク部と交互に積層されて前記バックヨークを構成する第2バックヨーク部と、前記第1磁極ティース部と交互に積層されて前記磁極ティースを構成する第2磁極ティース部を有し、
前記第1端部は、前記第1バックヨーク部が前記第2バックヨーク部に対して周方向の一側に突出しており、
前記嵌合穴が、前記第1端部における前記第1バックヨーク部の突出部に形成され、
前記第2端部は、前記第2バックヨーク部が前記第1バックヨーク部に対して周方向の他側に突出しており、
前記嵌合凸部が、前記第2端部における前記第2バックヨーク部の突出部に形成され、
複数の前記分割鉄心は、前記分割鉄心の前記第2端部の前記第2バックヨーク部の突出部が隣の前記分割鉄心の前記第1端部の前記第1バックヨーク部の突出部間に挿入され、かつ前記嵌合凸部が前記嵌合穴に嵌合されている状態で、前記嵌合凸部周りに回転可能に連結され、
前記嵌合穴は、周方向に延びる長穴形状に形成され、
前記分割鉄心は、隣接する前記分割鉄心に対して、前記嵌合凸部が前記嵌合穴の周方向の一端に接する拡大位置と、前記嵌合凸部が前記嵌合穴の周方向の他端に接する縮小位置と、の間を変位可能に構成され、
前記第2コア片の前記第2バックヨーク部の周方向の他側の端部に形成された第2突起部と、
軸心を第2磁極間中心線上に位置させて前記第2突起部に形成された前記嵌合凸部と、
前記第2突起部の外周面の一部により構成され、半周以上の周長を有し、前記第2突起部に形成された前記嵌合凸部の軸心を中心とする円弧面の第2円弧部と、
前記第2突起部の内径側に形成され、前記第2磁極間中心線から周方向の一側に窪む第2窪み部と、
前記第2コア片の前記第2バックヨーク部の周方向の一側の端部に形成され、第1磁極間中心線から周方向の他側に窪む第1窪み部と、
前記第1窪み部の内周面により構成され、半周以上の周長を有し、前記第2突起部が前記1窪み部に嵌合されたときの前記嵌合凸部の軸心を中心とする円弧面の第1円弧部と、
前記第1窪み部の内径側に形成され、前記第1磁極間中心線から周方向一側に突出する第1突起部と、を備え、
前記固定子鉄心が、隣の前記固定子鉄心に対して縮小位置に位置しているときに、前記第2突起部が前記第1窪み部に嵌合し、第1突起部が第2窪み部に嵌合する回転電機の固定子鉄心。
Each of the back yokes and the plurality of divided iron cores having a plurality of divided iron cores having magnetic pole teeth protruding radially outward from the central portion in the circumferential direction of the back yoke are connected and arranged in an arc shape. In the stator core of a rotary electric machine, which is composed of divided iron core connectors arranged in an annular shape,
The back yoke has a first end portion on one side in the circumferential direction having a fitting hole and a second end portion on the other side in the circumferential direction having a fitting convex portion.
The divided iron core is composed of a first core piece and a second core piece that are alternately laminated.
The first core piece has a first back yoke portion and a first magnetic pole tooth portion.
The second core piece is alternately laminated with the first back yoke portion to form the back yoke, and the second core piece is alternately laminated with the first magnetic pole tooth portion to form the magnetic pole tooth. Has a second magnetic pole tooth section,
In the first end portion, the first back yoke portion projects to one side in the circumferential direction with respect to the second back yoke portion.
The fitting hole is formed in the protruding portion of the first back yoke portion at the first end portion.
In the second end portion, the second back yoke portion projects to the other side in the circumferential direction with respect to the first back yoke portion.
The fitting convex portion is formed on the protruding portion of the second back yoke portion at the second end portion.
In the plurality of divided iron cores, the protruding portion of the second back yoke portion of the second end portion of the divided iron core is adjacent to the protruding portion of the first back yoke portion of the first end portion of the divided iron core. In a state where the fitting protrusion is inserted and the fitting protrusion is fitted in the fitting hole, the fitting protrusion is rotatably connected around the fitting protrusion.
The fitting hole is formed in an elongated hole shape extending in the circumferential direction.
The split iron core has an enlarged position in which the fitting convex portion contacts one end of the fitting hole in the circumferential direction with respect to the adjacent split iron core, and the fitting convex portion is in the circumferential direction of the fitting hole. It is configured to be displaceable between the reduced position in contact with the edge and
A second protrusion formed at the other end of the second core piece in the circumferential direction of the second back yoke portion, and
With the fitting convex portion formed on the second projection portion with the axis centered on the center line between the second magnetic poles,
A second arc surface centered on the axis of the fitting convex portion formed on the second protrusion, which is composed of a part of the outer peripheral surface of the second protrusion and has a circumference of half or more. Arc part and
A second recess formed on the inner diameter side of the second protrusion and recessed to one side in the circumferential direction from the center line between the second magnetic poles, and a second recess.
A first recessed portion formed at one end of the second core piece in the circumferential direction of the second back yoke portion and recessed from the center line between the first magnetic poles to the other side in the circumferential direction.
It is composed of the inner peripheral surface of the first recessed portion, has a peripheral length of half a circumference or more, and is centered on the axial center of the fitting convex portion when the second protruding portion is fitted into the first recessed portion. The first arc portion of the arc surface to be
A first protrusion formed on the inner diameter side of the first recess and projecting unilaterally in the circumferential direction from the center line between the first magnetic poles is provided.
When the stator core is located at a reduced position with respect to the adjacent stator core, the second protrusion is fitted into the first recess, and the first protrusion is the second recess. Stator core of rotary electric machine that fits into.
前記第1窪み部の外径側に形成され、前記第1磁極間中心線から周方向一側に突出する第3突起部と、
前記第3突起部の外径側の面により構成され、前記第2突起部が前記第1窪み部に嵌合されたときの前記嵌合凸部の軸心を中心とする円弧面であり、前記第1磁極間中心線から周方向一側に延びている第3円弧部と、
前記第2突起部の外径側に形成され、前記第2磁極間中心線から周方向一側に窪む第3窪み部と、
前記第3窪み部の外径側の面により構成され、前記第2突起部に形成された前記嵌合凸部の軸心を中心とする円弧面であり、前記第2磁極間中心線から周方向一側に延びている第4円弧部と、をさらに備え、
前記固定子鉄心が、隣の前記固定子鉄心に対して縮小位置に位置しているときに、前記第3突起部が前記第3窪み部に嵌合する請求項1記載の回転電機の固定子鉄心。
A third protrusion formed on the outer diameter side of the first recess and protruding unilaterally in the circumferential direction from the center line between the first magnetic poles,
It is an arc surface formed by a surface on the outer diameter side of the third protrusion, and centered on the axis of the fitting convex when the second protrusion is fitted into the first recess. A third arc portion extending from the center line between the first magnetic poles to one side in the circumferential direction, and
A third recess formed on the outer diameter side of the second protrusion and recessed on one side in the circumferential direction from the center line between the second magnetic poles, and a third recess.
It is an arc surface formed on the outer diameter side of the third recessed portion and centered on the axial center of the fitting convex portion formed on the second protrusion, and is circumferential from the center line between the second magnetic poles. Further provided with a fourth arc portion extending in one direction,
The stator of a rotary electric machine according to claim 1, wherein the third protrusion fits into the third recess when the stator core is located at a reduced position with respect to the adjacent stator core. Iron core.
前記第1突起部の内周面が前記第1バックヨーク部の内周面より内径側に位置している請求項1又は請求項2記載の回転電機の固定子鉄心。 The stator core of the rotary electric machine according to claim 1 or 2, wherein the inner peripheral surface of the first protrusion is located on the inner diameter side of the inner peripheral surface of the first back yoke. 前記第1コア片の前記第1バックヨーク部の周方向の一側の端部に形成された第4突起部と、
前記第4突起部に形成され、前記嵌合凸部が周方向の他端に接したときに、前記嵌合凸部の軸心が前記第1磁極間中心線上に位置する前記嵌合穴と、
前記第4突起部の外周面の一部により構成され、前記嵌合穴の周方向の他端に接した前記嵌合凸部の軸心を中心とする円弧面の第7円弧部と、
前記第1コア片の前記第1バックヨーク部の周方向の他側の端部に形成され、前記第2磁極間中心線から周方向の一側に窪む第4窪み部と、
前記第4窪み部の内周面の一部により構成され、前記第4突起部が前記第4窪み部に嵌合されたときの前記嵌合穴の周方向の他端に接した前記嵌合凸部の軸心を中心とする円弧面の第8円弧部と、をさらに備え、
前記固定子鉄心が、隣の前記固定子鉄心に対して縮小位置に位置しているときに、前記第4突起部が前記第4窪み部に嵌合する請求項1から請求項3のいずれか1項に記載の回転電機の固定子鉄心。
A fourth protrusion formed on one end of the first core piece in the circumferential direction of the first back yoke portion, and a fourth protrusion.
When the fitting convex portion is formed on the fourth protrusion and comes into contact with the other end in the circumferential direction, the axial center of the fitting convex portion is aligned with the fitting hole located on the center line between the first magnetic poles. ,
A seventh arc portion of an arc surface centered on the axial center of the fitting convex portion, which is composed of a part of the outer peripheral surface of the fourth protrusion and is in contact with the other end in the circumferential direction of the fitting hole.
A fourth recess formed at the other end of the first core piece in the circumferential direction of the first back yoke portion and recessed to one side in the circumferential direction from the center line between the second magnetic poles, and a fourth recess.
The fitting is composed of a part of the inner peripheral surface of the fourth recess and is in contact with the other end of the fitting hole in the circumferential direction when the fourth protrusion is fitted into the fourth recess. Further provided with an eighth arc portion of an arc surface centered on the axis of the convex portion.
Any one of claims 1 to 3 in which the fourth protrusion fits into the fourth recess when the stator core is located at a reduced position with respect to the adjacent stator core. The stator core of the rotary electric machine according to item 1.
前記第4突起部の外径側に形成され、前記第1磁極間中心線から周方向の他側に窪む第5窪み部と、
前記第5窪み部の外径側の面により構成され、前記嵌合穴の周方向の他端に接した前記嵌合凸部の軸心を中心とする円弧面であり、前記第1磁極間中心線から周方向の他側に延びている第9円弧部と、
前記第4窪み部の外径側に形成され、前記第2磁極間中心線から周方向の他側に突出する第5突起部と、
前記第5突起部の外径側の面により構成され、前記第4突起部が前記第4窪み部に嵌合されたときの前記嵌合穴の周方向の他端に接した前記嵌合凸部の軸心を中心とする円弧面であり、前記第2磁極間中心線から周方向の他側に延びている第10円弧面と、をさらに備え、
前記固定子鉄心が、隣の前記固定子鉄心に対して縮小位置に位置しているときに、前記第5突起部が前記第5窪み部に嵌合する請求項4記載の回転電機の固定子鉄心。
A fifth recess formed on the outer diameter side of the fourth protrusion and recessed to the other side in the circumferential direction from the center line between the first magnetic poles, and a fifth recess.
It is an arc surface centered on the axial center of the fitting convex portion, which is composed of a surface on the outer diameter side of the fifth recessed portion and is in contact with the other end in the circumferential direction of the fitting hole, and is between the first magnetic poles. The ninth arc part extending from the center line to the other side in the circumferential direction,
A fifth protrusion formed on the outer diameter side of the fourth recess and projecting to the other side in the circumferential direction from the center line between the second magnetic poles,
The fitting convex which is composed of the outer diameter side surface of the fifth protrusion and is in contact with the other end in the circumferential direction of the fitting hole when the fourth protrusion is fitted into the fourth recess. It is an arc surface centered on the axis of the portion, and further includes a tenth arc surface extending from the center line between the second magnetic poles to the other side in the circumferential direction.
The stator of a rotary electric machine according to claim 4, wherein the fifth protrusion fits into the fifth recess when the stator core is located at a reduced position with respect to the adjacent stator core. Iron core.
JP2016178300A 2016-09-13 2016-09-13 Stator iron core of rotary electric machine Active JP6818476B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016178300A JP6818476B2 (en) 2016-09-13 2016-09-13 Stator iron core of rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016178300A JP6818476B2 (en) 2016-09-13 2016-09-13 Stator iron core of rotary electric machine

Publications (2)

Publication Number Publication Date
JP2018046617A JP2018046617A (en) 2018-03-22
JP6818476B2 true JP6818476B2 (en) 2021-01-20

Family

ID=61693356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016178300A Active JP6818476B2 (en) 2016-09-13 2016-09-13 Stator iron core of rotary electric machine

Country Status (1)

Country Link
JP (1) JP6818476B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7047533B2 (en) * 2018-03-29 2022-04-05 日本製鉄株式会社 Split stator and rotary machine
JP6937905B2 (en) * 2018-05-22 2021-09-22 三菱電機株式会社 Laminated core of rotary electric machine and rotary electric machine
JP7146100B2 (en) * 2019-08-20 2022-10-03 三菱電機株式会社 Stator, rotating electric machine, and manufacturing method thereof
CN111864929A (en) * 2020-07-24 2020-10-30 珠海格力节能环保制冷技术研究中心有限公司 Combined stator core, motor, compressor, air conditioner
CN115566820B (en) * 2022-11-03 2023-08-08 山东欧瑞安电气有限公司 Permanent magnet roller stator core and winding offline method of stator core

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4776306B2 (en) * 2005-08-26 2011-09-21 株式会社三井ハイテック Manufacturing method of annular laminated core
JP5528164B2 (en) * 2010-03-18 2014-06-25 三菱電機株式会社 Stator for rotating electrical machine and method for manufacturing the same
KR101858888B1 (en) * 2014-03-26 2018-05-16 미쓰비시덴키 가부시키가이샤 Rotating electric machine armature core and rotating electric machine

Also Published As

Publication number Publication date
JP2018046617A (en) 2018-03-22

Similar Documents

Publication Publication Date Title
JP6818476B2 (en) Stator iron core of rotary electric machine
JP4807219B2 (en) Stator core and rotating electric machine
JP5859112B2 (en) Rotating electric machine armature and method of manufacturing rotating electric machine armature
WO2014192076A1 (en) Rotating electric machine iron core
JP5557058B2 (en) Stator for rotating electric machine and method for manufacturing the same
JP5682800B2 (en) Stator for rotating electric machine and method for manufacturing the same
WO2017141562A1 (en) Rotating electric machine stator, rotating electric machine, and method for manufacturing rotating electric machine stator
CN109792172B (en) Rotor and motor
JP6250149B2 (en) Armature core of rotating electrical machine and method for manufacturing armature
JP2010259174A (en) Manufacturing method of motor stator
JP2008206318A (en) Armature insulator and armature
JP5528164B2 (en) Stator for rotating electrical machine and method for manufacturing the same
JP2017225208A (en) Armature, rotary electric machine, and manufacturing method of armature
JP7548056B2 (en) Rotor and IPM motor
JP2013153575A (en) Laminated core of dynamo-electric machine, manufacturing method therefor, and armature of dynamo-electric machine
JP6708360B1 (en) Split core of stator core, stator having the same, method of manufacturing split core of stator core, and manufacturing apparatus
JP5146077B2 (en) Motor and manufacturing method thereof
JP2021044885A (en) Manufacturing method of laminated iron core, manufacturing method of electrical machine, manufacturing apparatus of laminated iron core, and electrical machine
WO2020194787A1 (en) Manufacturing method for armature core, manufacturing method for electric machine, and electric machine
JP7357811B2 (en) Split core, rotating electrical machine, split core manufacturing method, and rotating electrical machine manufacturing method
JP2016077154A (en) Manufacturing method of iron core of rotating electrical machine
JP2017077125A (en) Rotating electric machine stator
JP5988955B2 (en) Rotating electric machine and manufacturing method thereof
JP2015023630A (en) Stator manufacturing method and stator
JP7229402B2 (en) Armature manufacturing method and armature

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190308

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191210

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191217

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200210

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200519

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200701

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: 20201201

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20201228

R150 Certificate of patent or registration of utility model

Ref document number: 6818476

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250