JP5356897B2 - Rotating electric machine and manufacturing method thereof - Google Patents

Rotating electric machine and manufacturing method thereof Download PDF

Info

Publication number
JP5356897B2
JP5356897B2 JP2009095435A JP2009095435A JP5356897B2 JP 5356897 B2 JP5356897 B2 JP 5356897B2 JP 2009095435 A JP2009095435 A JP 2009095435A JP 2009095435 A JP2009095435 A JP 2009095435A JP 5356897 B2 JP5356897 B2 JP 5356897B2
Authority
JP
Japan
Prior art keywords
winding
unit
magnetic pole
core
cores
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
JP2009095435A
Other languages
Japanese (ja)
Other versions
JP2010246352A (en
Inventor
隆之 鬼橋
一之 山本
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 JP2009095435A priority Critical patent/JP5356897B2/en
Publication of JP2010246352A publication Critical patent/JP2010246352A/en
Application granted granted Critical
Publication of JP5356897B2 publication Critical patent/JP5356897B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture, at low cost, a stator for configuring a rotating electric machine of serial star connection having 10 poles and 12 teeth by continuously winding the wires of each of phases without cutting, and reducing the number of times of terminal connection of the winding wires. <P>SOLUTION: The stator is configured, in such a way that unit cores 2 each having a pair of magnetic pole pieces 3 made of a laminate core formed by laminating a thin plate along an output shaft direction; the unit cores 2 have each magnetic pole piece 3 having a back yoke portion 31 and a teeth portion 32 protruding from the back yoke portion 31; the back yoke portions 31 are bendably connected; a winding 4 is formed continuously with two pieces of unit core 2 as one pair; and three pairs of unit cores 2 are disposed in an annular fashion. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、回転電機及びその製造方法に係り、特には回転電機を構成する固定子の改良に関する。   The present invention relates to a rotating electrical machine and a method for manufacturing the same, and more particularly to an improvement in a stator constituting the rotating electrical machine.

回転電機の固定子には、プレス等で打ち抜かれた薄板状の珪素鋼板を複数枚積層して、カシメや溶接等により一体化した構造の積層鉄心が使用されている。そして、この積層鉄心を使用した固定子に巻線を高密度に巻くことで、回転電機の高効率化や大容量化、さらに小形化を図ることができる。このような固定子に巻線を高密度に巻く場合の作業性を向上させるため、従来より固定子鉄心を複数個に分割化した分割鉄心が採用されている。   As a stator of a rotating electric machine, a laminated iron core having a structure in which a plurality of thin silicon steel plates punched by a press or the like are laminated and integrated by caulking, welding, or the like is used. And by winding a winding with high density on a stator using this laminated iron core, it is possible to increase the efficiency, increase the capacity, and further reduce the size of the rotating electrical machine. In order to improve workability when winding the winding around such a stator at a high density, a split core obtained by dividing the stator core into a plurality of parts has been conventionally used.

例えば、下記の特許文献１では、固定子をティース毎に完全に分割化した構造の分割鉄心が採用されている。そして、この分割鉄心のティース部にそれぞれ巻線を施した後、分割部に設けられた凹部と凸部を結合一体化して円環状に形成することで固定子を構成している。   For example, in the following Patent Document 1, a split iron core having a structure in which a stator is completely divided for each tooth is employed. And after winding each to the teeth part of this division | segmentation iron core, the stator is comprised by couple | bonding and integrating the recessed part and convex part which were provided in the division | segmentation part, and forming in an annular | circular shape.

また、下記の特許文献２では、積層鉄心で構成される複数個（例示では３個）の磁極片をジョイント部を介して折り曲げ可能に互いに連結して１つの連結体を構成し、この連結体の各磁極片のティース部にそれぞれ巻線を施した後、これらの各磁極片をジョイント部で屈曲させて円弧状に形成し、これらの各連結体の複数個（例示では３個）について、その突き合わせ端部同士を一体結合して円環状に形成することで固定子を構成している。   Further, in Patent Document 2 below, a plurality of (three in the illustrated example) magnetic pole pieces composed of laminated iron cores are connected to each other via a joint portion so as to be foldable to form a single connected body. Each of the magnetic pole pieces is wound around the teeth portion, and then each of the magnetic pole pieces is bent at the joint portion to form an arc shape. The butted ends are integrally coupled to form an annular shape, thereby forming a stator.

特開平８−１８６９５８号公報JP-A-8-186958 特開２００８−９２６９１号公報JP 2008-92691 A

しかし、特許文献１の場合、各ティース部に巻かれた巻線の巻き始め部分と、巻き終わり部分、および各分割鉄心の相互間を結ぶための渡り線の部分をそれぞれ必要な電気回路となるように接続しなければならず、接続箇所が多くなるために多大の労力や、労力に代替する材料費（例えば、プリント基板等）が必要となる。   However, in the case of patent document 1, the winding start part of the coil | winding wound around each teeth part, a winding end part, and the part of the connecting wire for connecting between each division | segmentation iron core become a required electric circuit, respectively. In order to increase the number of connection points, a great amount of labor and material costs (for example, a printed circuit board) to replace the labor are required.

また、特許文献２の構成の場合、隣接する磁極片を逆反り状態にできるため、巻線を施す作業が容易化できるものの、例えば１０極１２ティースの回転電機の固定子を構成する場合、各々の連結体は、３個分の磁極片が一体連結された状態に形成する必要があるため、金型費用が高価となる。   Further, in the case of the configuration of Patent Document 2, since the adjacent magnetic pole pieces can be in a reverse warped state, the work of winding can be facilitated. For example, when configuring a stator of a 10-pole 12-tooth rotating electric machine, Since it is necessary to form the connecting body in a state in which the three magnetic pole pieces are integrally connected, the mold cost is high.

しかも、例えば１０極１２ティースの回転電機で直列スター結線を行う場合、同相内での連続巻線を実施する際、特にＶ相の巻線を施す際に４個の連結体の全てを同時に鉄心保持具に保持しておく必要が生じ（図４（ｂ）参照）、その結果、自動巻線機の機能が複雑となったり、大型化してしまい、ひいては回転電機の固定子が高価なものになってしまう。   In addition, for example, when performing serial star connection with a rotating machine having 10 poles and 12 teeth, when performing continuous winding in the same phase, particularly when applying V-phase winding, all four connected bodies are simultaneously cored. As a result, the function of the automatic winding machine becomes complicated or larger, and as a result, the stator of the rotating electrical machine becomes expensive. turn into.

この不具合を回避するために、連続巻線を実施しないようにすると、同相内の巻線の端末部分を切断することになるため、巻線の端末部分同士の接続箇所が増え、特許文献１と同様、多大の労力や、労力に代替する材料費（例えば、プリント基板等）が必要となる。   If the continuous winding is not carried out in order to avoid this problem, the terminal portions of the windings in the same phase will be cut, so the number of connection points between the winding terminal portions increases. Similarly, a great deal of labor and material costs (for example, printed circuit boards, etc.) to replace the labor are required.

本発明は、上記のような課題を解決するためになされたもので、巻線の高密度化が可能で、金型費用と巻線機などの設備費用を抑制することかでき、さらに巻線端末部の接続回数を削減することができて、安価な固定子を備えた１０極１２ティースの回転電機を提供することを目的とする。   The present invention has been made in order to solve the above-described problems, and it is possible to increase the density of the winding, and to suppress the cost of the mold and the cost of equipment such as a winding machine. An object of the present invention is to provide a 10-pole 12-tooth rotating electrical machine that can reduce the number of times the terminal unit is connected and includes an inexpensive stator.

上記の課題を解決するため、本発明に係る回転電機は、出力軸方向に沿って薄板を積層した積層鉄心からなる２個の磁極片を有するユニットコアを備え、このユニットコアは、上記磁極片がバックヨーク部とこのバックヨーク部から突出したティース部とを有するとともに、互いに隣接する上記バックヨーク部同士が折り曲げ可能に連結されており、このユニットコアの２個を１組として巻線が施されるとともに、この２個１組のユニットコアの３組が円環状に配置されて固定子が構成されたものであって、上記ユニットコアの２個１組が３相交流のそれぞれのＵ，Ｖ，Ｗ相の内の１相に対応するとともに、上記ユニットコアを１単位として周方向に沿って順次互いに異なる相となるように配列されており、上記１相分に対応する上記ユニットコアの２個１組に含まれる全ての上記磁極片には巻線が切断されずに連続して巻き付けられるとともに、上記ユニットコアを構成する２個の上記磁極片同士の巻線の巻き付け方向は互いに逆向きであり、かつ各相が異なるユニットコアの互いに隣接する上記磁極片同士の巻線の巻き付け方向は互いに同じになるように巻き付けられ、各相に対応する上記巻線の巻終り端部同士または巻始め端部同士を互いに接続して中性点として直列スター結線が構成されていることを特徴としている。
また、本発明に係る回転電機の製造方法は、上記構成を備えた回転電機を製造する方法であって、フライヤと鉄心保持治具とを使用し、上記鉄心保持治具に、その回転方向に沿ってＵ，Ｖ，Ｗ相の内の１相に対応した２個１組の上記ユニットコアを互いに間隔を空け、かつ上記ティース部が上記鉄心保持治具の回転方向の外周側に位置して２個の上記磁極片同士が逆反りされて互いの間隔が広がるようにセットし、巻線を供給する上記フライヤを上記ユニットコアの一方の磁極片のティース部に対して旋回動作するとともに、上記ティース部の延伸方向に沿ってスライドし、その際、上記フライヤの旋回先端の回転面に対して、巻線を施す作業を行っていない他方の磁極片が常に外側に位置するように上記ユニットコアの位置を設定し、上記ユニットコアの２個１組に含まれる全ての上記各磁極片に巻きつける巻線、および上記ユニットコアの間を結ぶ渡り線を切断せずに連続巻線する巻線作業を行い、この巻線作業を各相に対応した２個１組のユニットコアの全てに対して行った後、上記ユニットコアの各ティース部を逆反り状態から両者が円弧状となるように元に戻し、これらの２個１組のユニットコアの３組を、上記ユニットコアを１単位として周方向に沿って順次互いに異なる相となるように円環状に配置することを特徴としている。 In order to solve the above-described problems, a rotating electrical machine according to the present invention includes a unit core having two magnetic pole pieces made of a laminated iron core in which thin plates are laminated along an output shaft direction. There together having teeth portion protruding from the back yoke part and the back yoke part are foldably connected to the above back yoke portion adjacent to each other, winding and two of the unit core set and In addition, three sets of these two unit cores are arranged in an annular shape to form a stator , and each set of two unit cores has a U , V, and W phases, and the unit cores as one unit are arranged so as to be sequentially different from each other along the circumferential direction, and the units corresponding to the one phase are arranged. A winding is continuously wound around all the magnetic pole pieces included in one set of two cores without being cut, and the winding direction of the two magnetic pole pieces constituting the unit core is Winding ends of the windings corresponding to each phase are wound so that the winding directions of the pole pieces adjacent to each other in the unit cores that are opposite to each other and have different phases are mutually the same. It is characterized in that a series star connection is formed as a neutral point by connecting each other or winding start ends .
A method of manufacturing a rotating electrical machine according to the present invention is a method of manufacturing a rotating electrical machine having the above-described configuration, using a flyer and an iron core holding jig, and in the rotating direction of the iron core holding jig. A pair of the unit cores corresponding to one of the U, V, and W phases are spaced apart from each other, and the teeth are positioned on the outer peripheral side in the rotation direction of the iron core holding jig. The two magnetic pole pieces are reversely warped and set so that the distance between the magnetic pole pieces is widened, and the flyer for supplying the winding is swung with respect to the tooth portion of one magnetic pole piece of the unit core, and The unit core is slid along the extending direction of the teeth portion, and the other magnetic pole piece that is not subjected to the winding operation is always positioned on the outer surface of the rotating surface of the turning tip of the flyer. Set the position of the above Two pair to all the windings wound on the respective pole piece contained the Nittokoa, and perform winding operation to continuously wound without cutting the crossover wire connecting between the unit core, the winding operation Are performed on all of the two unit cores corresponding to each phase, and then the teeth of the unit cores are returned to their original shapes so that they are arcuate from the reverse warped state. Three sets of one set of unit cores are arranged in an annular shape so as to be sequentially different from each other along the circumferential direction with the unit core as one unit.

本発明によれば、ユニットコア内の両磁極片の相互間や、ユニットコアの相互間を切断せずに連続して巻線を施すことができる。このため、巻線端末部の接続回数を削減でき、安価な固定子を構成することができ、１０極１２ティースの直列スター結線の回転電機を提供することができる。   According to the present invention, it is possible to continuously perform winding without cutting between the two pole pieces in the unit core or between the unit cores. For this reason, the number of times of connection of the winding terminal portion can be reduced, an inexpensive stator can be configured, and a 10-pole 12-tooth series star-connected rotating electrical machine can be provided.

本発明の実施の形態１における回転電機において、固定子を構成するためのユニットコアの斜視図である。In the rotary electric machine in Embodiment 1 of this invention, it is a perspective view of the unit core for comprising a stator. 同ユニットコアを組み合わせて構成された固定子の断面図である。It is sectional drawing of the stator comprised combining the same unit core. 固定子断面における結線状態を示す結線図である。It is a connection diagram which shows the connection state in a stator cross section. 固定子を構成する全てのユニットコアを直線状に並べて、結線の状態を模式的に表した結線略図で、同図（ａ）は実施の形態１に対応し、同図（ｂ）は従来技術に対応している。All unit cores that constitute the stator are arranged in a straight line, and are schematic connection diagrams schematically showing the connection state. FIG. 5A corresponds to the first embodiment, and FIG. It corresponds to. ユニットコアの各磁極片に嵌着される絶縁用ボビンを固定子の径方向外方側から見た場合の斜視図である。It is a perspective view at the time of seeing the insulation bobbin fitted by each magnetic pole piece of a unit core from the radial direction outer side of a stator. 同絶縁用ボビンを固定子の径方向内方から見た場合の斜視図である。It is a perspective view at the time of seeing the bobbin for insulation from the radial inside of a stator. 同絶縁用ボビンを図５の符号Ａ方向から見た平面図である。It is the top view which looked at the bobbin for the insulation from the code A direction of FIG. 同絶縁用ボビンを図５の符号Ｂ方向から見た正面図である。It is the front view which looked at the bobbin for the insulation from the code B direction of FIG. 同絶縁用ボビンを図５の符号Ｃ方向から見た側面図である。It is the side view which looked at the bobbin for the insulation from the code C direction of FIG. 回転電機の固定子を形成する場合に使用される自動巻線機の概略構成図である。It is a schematic block diagram of the automatic winding machine used when forming the stator of a rotary electric machine. ３相交流の１相分（ここではＶ相）に対応するユニットコアの２個１組に対して連続巻線を施した状態を示す説明図である。It is explanatory drawing which shows the state which performed the continuous winding with respect to one set of two unit cores corresponding to one phase part (here V phase) of three-phase alternating current. ３相交流の１相分（ここではＵ相）に対応するユニットコアの２個１組に対して連続巻線を施した状態を示す説明図である。It is explanatory drawing which shows the state which performed the continuous winding with respect to one set of two unit cores corresponding to 1 phase part (here U phase) of 3 phase alternating current. 本発明の実施の形態２における回転電機において、固定子を構成するためのユニットコアの平面図である。In the rotary electric machine in Embodiment 2 of this invention, it is a top view of the unit core for comprising a stator. 同ユニットコアを組み合わせて構成された固定子の断面図である。It is sectional drawing of the stator comprised combining the same unit core. ユニットコアの突き合わせ端面に形成された凹部と凸部の形状を示す平面図である。It is a top view which shows the shape of the recessed part and convex part which were formed in the butt | matching end surface of a unit core. ユニットコアの突き合わせ端面に形成された凹部と凸部の嵌合形態の説明図である。It is explanatory drawing of the fitting form of the recessed part and convex part which were formed in the butt | matching end surface of a unit core. ユニットコアの端面同士を突き合わせてユニットコア相互間を一体的に結合するときの状態を模式的に示す説明図である。It is explanatory drawing which shows typically a state when the end surfaces of a unit core are faced | matched and unit cores are couple | bonded together. 本発明の実施の形態３における回転電機において、固定子を構成するユニットコアのバックヨーク部に形成された凹部近傍の状態を示す平面図である。In the rotary electric machine in Embodiment 3 of this invention, it is a top view which shows the state of the recessed part vicinity formed in the back yoke part of the unit core which comprises a stator. 同ユニットコアのバックヨーク部の端面の形成された凹部と凸部とを嵌め合わせた状態を示す平面図である。It is a top view which shows the state which fitted the recessed part and convex part in which the end surface of the back yoke part of the unit core was formed. 本発明の実施の形態４における回転電機において、固定子を構成するユニットコアの磁極片に絶縁用ボビンを嵌着した状態の一部を示す側面図である。In the rotary electric machine in Embodiment 4 of this invention, it is a side view which shows a part of the state which fitted the insulation bobbin to the magnetic pole piece of the unit core which comprises a stator. 各ユニットコア間を渡り線で接続する場合の変形例を示す説明図である。It is explanatory drawing which shows the modification in the case of connecting between each unit core with a crossover.

実施の形態１．
図１は本発明の実施の形態１における回転電機において、固定子を構成するためのユニットコアの斜視図、図２は同ユニットコアを組み合わせて構成された固定子の断面図、図３は固定子断面における結線状態を示す結線図、図４は固定子を構成する全てのユニットコアを直線状に並べて、結線の状態を模式的に表した結線略図である。なお、図４ではユニットコアは簡略化して表しティース部に巻かれる巻線や絶縁用ボビンは省略している。 Embodiment 1 FIG.
1 is a perspective view of a unit core for constituting a stator in a rotating electric machine according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of a stator configured by combining the unit cores, and FIG. FIG. 4 is a schematic connection diagram schematically showing the connection state by arranging all unit cores constituting the stator in a straight line. In FIG. 4, the unit core is shown in a simplified manner, and windings and insulating bobbins wound around the teeth are omitted.

この実施の形態１の回転電機の固定子１は、複数個（ここでは６個）のユニットコア２を備え、このユニットコア２は、回転出力軸方向（図２で紙面に直交する方向）に沿って薄板を複数枚積み重ねてカシメや溶接等により固定されてなる積層鉄心で構成された一対の磁極片３を備える。各磁極片３は、バックヨーク部３１と、このバックヨーク部３１から突出したティース部３２とを有し、各バックヨーク部３１には、固定子１の製造に際して後述の鉄心保持治具８にユニットコア２を取り付けるための取付穴３４が形成され、また、互いに隣接するバックヨーク部３１同士が薄肉３３を介して折り曲げ可能に連結されている。   The stator 1 of the rotating electrical machine according to the first embodiment includes a plurality (six in this case) of unit cores 2, and the unit cores 2 are arranged in a rotational output axis direction (a direction perpendicular to the paper surface in FIG. 2). A plurality of thin plates are stacked along with a pair of magnetic pole pieces 3 made of a laminated iron core fixed by caulking or welding. Each pole piece 3 has a back yoke portion 31 and a teeth portion 32 protruding from the back yoke portion 31, and each back yoke portion 31 is provided with an iron core holding jig 8 described later when the stator 1 is manufactured. A mounting hole 34 for mounting the unit core 2 is formed, and the back yoke portions 31 adjacent to each other are connected to each other via a thin wall 33 so as to be bendable.

なお、ここでは磁極片３同士を連結する薄肉３３は、バックヨーク部３１の一部を薄肉にすることにより構成しているが、これに限らず、各磁極片３のバックヨーク部３１同士を回転可能な連結部と揺動自在にヒンジ結合して折り曲げ可能に連結した構成、例えば、積層方向のカシメ用凹凸を利用して回動自在に成されている形状にすることも可能である。   Here, the thin wall 33 for connecting the magnetic pole pieces 3 to each other is formed by making a part of the back yoke portion 31 thin. However, the present invention is not limited to this, and the back yoke portions 31 of the magnetic pole pieces 3 are connected to each other. It is also possible to have a structure in which a rotatable connecting portion is hinged to be able to swing and connected so as to be able to be bent, for example, a shape that can be rotated using caulking unevenness in the stacking direction.

また、各ユニットコア２のティース部３２には、回転出力軸方向の前後から後述する一対の絶縁用ボビン７が嵌着され、この絶縁用ボビン７が嵌着されたユニットコア２の２個を１組として連続して巻線４が施されている。これによって、ユニットコア２の２個１組が、３相交流のそれぞれの相Ｕ，Ｖ，Ｗの内の１相分に対応している。   In addition, a pair of insulating bobbins 7 to be described later are fitted to the tooth portions 32 of each unit core 2 from the front and rear in the rotation output axis direction, and two unit cores 2 to which the insulating bobbins 7 are fitted are attached. The winding 4 is continuously provided as one set. Thereby, one set of two unit cores 2 corresponds to one phase of each of the phases U, V, and W of the three-phase alternating current.

そして、この巻装された２個のユニットコア２同士が互いに円の中心Ｏを挟む点対称位置に対向配置されるとともに、ユニットコア２の２個１組を３組用いて周方向に沿って６０度ずつ順次ずらせて円環状に配置され、こうして円環状に配置された各ユニットコア２のバックヨーク部３１の突き合わせ端部同士が溶接や接着により一体結合されることにより、１０極１２ティースの３相ＤＣブラシレスモータ用の固定子１が構成されている。   The two wound unit cores 2 are arranged opposite to each other at a point-symmetrical position sandwiching the center O of the circle, and three sets of unit cores 2 are used along the circumferential direction. The butt end portions of the back yoke portions 31 of the unit cores 2 thus arranged in an annular shape are integrally connected by welding or adhesion, so that each of the 10 poles and 12 teeth is disposed. A stator 1 for a three-phase DC brushless motor is configured.

なお、図２ないし図４において、各ユニットコア２の各々の磁極片３に対して付された符号Ｕ，Ｖ，Ｗは３相交流のそれぞれの相に対応しており、Ｎは中性点である。また、各相Ｕ，Ｖ，Ｗに対する添え字は、それぞれのユニットコア２の各磁極片３に巻き付けられた各巻線４を区別するために示しており、Ｕ１とＵ１’の違いは、巻回方向が左右反対であることを示す。例えば、図３においてバックヨーク部３１側から見てＵ１が左回り、Ｕ１’が右回りを示す。またＵ１とＵ２との違いは、Ｕ１がユニットコア２の１番に巻き付けられる巻線であり、Ｕ２がユニットコア２の２番に巻き付けられる巻線であることを示す。   2 to 4, the symbols U, V, W attached to the magnetic pole pieces 3 of the unit cores 2 correspond to the phases of the three-phase alternating current, and N is a neutral point. It is. The subscripts for the phases U, V, and W are shown to distinguish the windings 4 wound around the magnetic pole pieces 3 of the respective unit cores 2. The difference between U1 and U1 ' Indicates that the direction is opposite. For example, in FIG. 3, when viewed from the back yoke portion 31 side, U1 is counterclockwise and U1 'is clockwise. The difference between U1 and U2 indicates that U1 is a winding wound around No. 1 of the unit core 2, and U2 is a winding wound around No. 2 of the unit core 2.

前述のごとく、例えば１０極１２ティースの回転電機で各相の巻線４を直列に連続してスター結線する場合において、先の特許文献２の場合には、図４（ｂ）に示すように、同相内で連続して巻線４を実施する際、特にＶ相の巻線４を施すときには、３つの磁極片３からなる連結体５０の４個分について、各連結体５０の相互間を結ぶ渡り線４１を経由して切れ目なく全て連続して巻線４を巻き付ける必要があるので、４個の連結体５０を全て同時に鉄心保持治具８に保持しておく必要が生じる。そのため、自動巻線機の機能が複雑となったり、大型化してしまう。   As described above, for example, in the case of Patent Document 2 in which the winding 4 of each phase is continuously connected in series with a rotating machine having 10 poles and 12 teeth, as shown in FIG. When the winding 4 is continuously performed in the same phase, particularly when the V-phase winding 4 is applied, the four connecting bodies 50 including the three magnetic pole pieces 3 are connected to each other between the connecting bodies 50. Since it is necessary to continuously wind the winding 4 through the connecting wire 41 without any break, it is necessary to hold all the four connecting bodies 50 in the iron core holding jig 8 at the same time. For this reason, the function of the automatic winding machine becomes complicated or large.

これに対して、この実施の形態１では、図４（ａ）に示すように、同相内で連続して巻線４を実施する際、Ｕ，Ｖ，Ｗの各相のいずれについても、２個１組のユニットコア２を１単位として、その単位内で互いに連結された磁極片３間を結ぶ渡り線４４や２つのユニットコア２の間を結ぶ渡り線４１を経由して連続して巻線４を巻き付ければよいので、巻線端末部の接続回数を削減でき、安価な回転電機の固定子１を得ることができる。   On the other hand, in the first embodiment, as shown in FIG. 4A, when the winding 4 is continuously performed in the same phase, for each of the U, V, and W phases, 2 One unit core 2 is regarded as one unit, and the winding is continuously performed via a connecting wire 44 connecting the magnetic pole pieces 3 connected to each other in the unit and a connecting wire 41 connecting the two unit cores 2. Since the wire 4 only has to be wound, the number of times of connection of the winding terminal portion can be reduced, and an inexpensive stator 1 of a rotating electrical machine can be obtained.

図５は絶縁用ボビン７を固定子の径方向外方側から見た場合の斜視図、図６は絶縁用ボビン７を固定子の径方向内方から見た場合の斜視図、図７は絶縁用ボビンを図５の符号Ａで示す方向から見た平面図、図８は絶縁用ボビンを図５の符号Ｂ方向から見た正面図、図９は絶縁用ボビンを図５の符号Ｃ方向から見た側面図である。   5 is a perspective view when the insulating bobbin 7 is viewed from the radially outer side of the stator, FIG. 6 is a perspective view when the insulating bobbin 7 is viewed from the radially inner side of the stator, and FIG. FIG. 8 is a plan view of the insulating bobbin as viewed from the direction indicated by A in FIG. 5, FIG. 8 is a front view of the insulating bobbin as viewed from the direction of B in FIG. 5, and FIG. It is the side view seen from.

この絶縁用ボビン７は、各磁極片３のティース部３２に嵌合されるティース嵌合部７１と、バックヨーク部３１に嵌合されるバックヨーク嵌合部７２とを有する。   The insulating bobbin 7 has a tooth fitting portion 71 fitted to the tooth portion 32 of each magnetic pole piece 3 and a back yoke fitting portion 72 fitted to the back yoke portion 31.

そして、ティース嵌合部７１には、巻線４をティース部３２に整列して巻き付けるための巻線整列溝７４が形成され、また、ティース嵌合部７１とバックヨーク嵌合部７２との境界部分には、巻線４の巻き始め部分がそれ以降に巻かれる部分と干渉することを避けるために、その左右の位置に巻線４の巻始め部分を外側に逃すための巻始め線逃がし溝７５が形成されている。さらに、バックヨーク嵌合部７２には、その左右に各相の巻線４の巻き始め部分や巻き終わり部分、また前述の各渡り線４１，４４（以下、これらを総称して巻線端末部と称する）を収納するための巻線端末部収納溝７６が形成され、さらに、巻線端末部収納溝７６に収納された巻線端末部を保持するために紐や結束バンド等を差し込むための巻線固定孔７７が形成されている。   The teeth fitting portion 71 is formed with a winding alignment groove 74 for winding the winding 4 in alignment with the teeth portion 32, and the boundary between the teeth fitting portion 71 and the back yoke fitting portion 72. In the portion, in order to prevent the winding start portion of the winding 4 from interfering with the portion wound thereafter, the winding start line relief groove for letting the winding start portion of the winding 4 to the outside at the left and right positions thereof. 75 is formed. Further, the back yoke fitting portion 72 includes a winding start portion and a winding end portion of the winding 4 of each phase on the left and right sides, and the above-described connecting wires 41 and 44 (hereinafter collectively referred to as a winding terminal portion). A winding terminal portion storing groove 76 for storing the winding terminal portion, and for holding a winding terminal portion stored in the winding terminal portion storing groove 76 for inserting a string, a binding band or the like. A winding fixing hole 77 is formed.

図１０は上記構成の回転電機の固定子１を形成する場合に使用される自動巻線機の概略構成図である。   FIG. 10 is a schematic configuration diagram of an automatic winding machine used when forming the stator 1 of the rotating electrical machine having the above configuration.

この自動巻線機は、ユニットコア２の固定用の鉄心保持治具８、およびフライヤ９を有する。ここに、鉄心保持治具８は、円盤状のもので、その周方向に沿って各磁極片３に形成された取付穴３４に差し込まれる取付ピン８１が設けられており、鉄心保持治具８の中心Ｏを中心として回転が可能である。また、フライヤ９は、ユニットコア２の各磁極片３のティース部３２に巻線４を巻き付けるためのもので、その旋回軸９１を中心として、旋回軸９１の軸端に取り付けられたアーム部９２が矢印θで示すように正逆転方向にそれぞれ旋回可能に設けられるとともに、整列巻きを行うために旋回動作と同期して旋回軸９１が軸方向（符号Ｚ方向）へスライドするように構成されている。そして、供給される巻線４は、フライヤ９のアーム部９２の基端側からアーム部９２の内部を通って先端部分まで繋がっている。   This automatic winding machine has an iron core holding jig 8 for fixing the unit core 2 and a flyer 9. Here, the iron core holding jig 8 has a disk shape, and is provided with mounting pins 81 to be inserted into the mounting holes 34 formed in the magnetic pole pieces 3 along the circumferential direction thereof. Rotation is possible around the center O. The flyer 9 is for winding the winding 4 around the teeth portion 32 of each pole piece 3 of the unit core 2, and the arm portion 92 attached to the shaft end of the swiveling shaft 91 around the swiveling shaft 91. Is provided so as to be able to turn in the forward and reverse directions as indicated by the arrow θ, and the turning shaft 91 is configured to slide in the axial direction (reference Z direction) in synchronization with the turning operation in order to perform aligned winding. Yes. The supplied winding 4 is connected from the proximal end side of the arm portion 92 of the flyer 9 to the distal end portion through the inside of the arm portion 92.

図１１は３相交流の１相分（ここでは一例としてＶ相）に対応するユニットコア２の２個１組に対して連続に巻線４を施した状態を示す説明図、図１２は３相交流の残りの２相分（ここでは一例としてＵ相）に対応するユニットコア２の２個１組に対して連続に巻線４を施した状態を示す説明図であり、各ティース部３２に巻かれる巻線４の部分は省略している。なお、Ｕ相、Ｗ相の場合は、Ｖ相の場合と巻線４が施される方向、および巻き始め部分および巻き終わり部分の位置が逆になっている。また、これとは逆に図１１をＵ相、Ｗ相、図１２をＶ相とすることでも１０極１２ティースの回転電機を構成することができる。   FIG. 11 is an explanatory diagram showing a state in which the winding 4 is continuously applied to one set of two unit cores 2 corresponding to one phase of three-phase alternating current (here, V phase as an example). It is explanatory drawing which shows the state which provided the coil | winding 4 continuously with respect to 2 units | sets of the unit core 2 corresponding to the remaining 2 phases (here U phase is an example) of phase alternating current, and each teeth part 32 The portion of the winding 4 wound around is omitted. In the case of the U phase and the W phase, the direction in which the winding 4 is applied and the positions of the winding start portion and the winding end portion are opposite to those in the V phase. On the contrary, a rotating electrical machine having 10 poles and 12 teeth can also be configured by setting FIG. 11 to the U phase, W phase, and FIG. 12 to the V phase.

次に、図１０および図１１を参照して固定子を形成するために、１相分（ここではＶ相）を構成する２個１組のユニットコア２の各ティース部３２に巻線４を施す方法について説明する。なお、ここでの説明は、便宜上ユニットコアやその磁極片が区別できるように、これらに個々別々の符号を付す。   Next, in order to form a stator with reference to FIG. 10 and FIG. 11, the winding 4 is attached to each tooth portion 32 of a set of two unit cores 2 constituting one phase (here, V phase). The method of applying will be described. In the description here, the unit cores and their pole pieces are individually labeled with each other so that they can be distinguished for convenience.

まず、２つのユニットコア２ａ，２ｂそれぞれについて、ティース部３２が外側に位置するように薄肉部３３を折り曲げて逆反らせて隣接する磁極片３ａ，３ｂ間の距離を広くし、この状態で鉄心保持治具８の取付ピン８１に各磁極片３ａ，３ｂ，３ｃ，３ｄのバックヨーク部３１に形成された取付穴３４を挿入するなどして固定する。その際、各ユニットコア２ａ，２ｂは、鉄心保持治具８の中心Ｏを挟む略点対称位置となるように配置する。そして、鉄心保持治具８を回転してまず一つの磁極片３ａをフライヤ９の正面位置に移動させる。   First, for each of the two unit cores 2a and 2b, the thin portion 33 is bent and reversely bent so that the teeth portion 32 is located outside, and the distance between the adjacent magnetic pole pieces 3a and 3b is increased, and the iron core is held in this state. The mounting holes 81 formed in the back yoke portions 31 of the magnetic pole pieces 3a, 3b, 3c, 3d are fixed to the mounting pins 81 of the jig 8 by, for example, inserting them. At this time, the unit cores 2 a and 2 b are arranged so as to be in a substantially point-symmetrical position across the center O of the iron core holding jig 8. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 3 a to the front position of the flyer 9.

次に、フライヤ９のアーム部９２の先端から出ている巻線４の端末部分を鉄心保持治具８に設置している巻き始め線固定用ピン８２等に固定した後、巻線４を巻始め線逃がし溝７５に沿わせてから、フライヤ９を旋回（ここではバックヨーク部３１側から見て右回り旋回）するとともに、これに同期して旋回軸９１を軸方向（Ｚ方向）に沿ってスライドさせながらこの磁極片３ａのティース部３２に巻線４を施す。   Next, after fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding starting wire fixing pin 82 or the like installed in the iron core holding jig 8, the winding 4 is wound. The flyer 9 is turned along the start line escape groove 75 (here, turning rightward as viewed from the back yoke portion 31 side), and the turning shaft 91 is moved along the axial direction (Z direction) in synchronization therewith. Then, the winding 4 is applied to the teeth portion 32 of the magnetic pole piece 3a.

その際、一つのユニットコア２ａを構成する一対の磁極片３ａ，３ｂの内、巻線４を施す作業を行っていない他方の磁極片３ｂが常にフライヤ９の旋回先端の回転面Ｑよりも外側（図１０では符号Ｐ１で示す箇所）に位置するようにユニットコア２ａの配置位置を設定して巻線作業を行う。このようにすれば、ユニットコア２ａ内の一方の磁極片３ａに巻線４を施す際、これに連結された他方の磁極片３ｂにフライヤ９が干渉することを確実に避けることができるので都合が良い。また、一つのユニットコア２ａを構成する一対の磁極片３ａ，３ｂの内、巻線４を施す作業を行っていない他方の磁極片３ｂとは反対側の位置（図１０では符号Ｐ２で示す箇所）でフライヤ９をＺ方向にスライドさせる。これは、巻線４を長い距離移動させる必要がある場合でも、他方の磁極片３ｂにフライヤ９が干渉することを確実に避けることができるので都合が良い。   At that time, of the pair of magnetic pole pieces 3 a and 3 b constituting one unit core 2 a, the other magnetic pole piece 3 b that is not subjected to the work of applying the winding 4 is always outside the rotation surface Q at the turning tip of the flyer 9. Winding work is performed by setting the arrangement position of the unit core 2a so as to be located at a position indicated by reference numeral P1 in FIG. In this way, when the winding 4 is applied to one of the magnetic pole pieces 3a in the unit core 2a, it is possible to reliably avoid the flyer 9 from interfering with the other magnetic pole piece 3b connected thereto. Is good. Further, of the pair of magnetic pole pieces 3a and 3b constituting one unit core 2a, the position opposite to the other magnetic pole piece 3b that is not subjected to the work of applying the winding 4 (the place indicated by P2 in FIG. 10). ) To slide the flyer 9 in the Z direction. This is convenient because the flyer 9 can be surely avoided from interfering with the other magnetic pole piece 3b even when the winding 4 needs to be moved a long distance.

次に、鉄心保持治具８を回転し、他方の磁極片３ｂをフライヤ９の正面位置（図１０の磁極片３ａの位置）に移動させる。このとき、このユニットコア２ａを構成する一方の磁極片３ａに巻回した巻線４の巻き終わり部分を切断することなくこれを渡り線４４として、絶縁用ボビン７の巻線端末部収納溝７６を通した後、他方の磁極片３ｂの絶縁用ボビン７の巻始め線逃がし溝７５に沿わせ、続いて、この他方の磁極片３ｂのティース部３２に対して一方の磁極片３ａに巻いた方向とは逆方向（この例ではバックヨーク部３１側から見て左回り）に巻線４を施す。   Next, the iron core holding jig 8 is rotated, and the other magnetic pole piece 3b is moved to the front position of the flyer 9 (position of the magnetic pole piece 3a in FIG. 10). At this time, the winding end portion storing groove 76 of the insulating bobbin 7 is used as the connecting wire 44 without cutting the winding end portion of the winding 4 wound around the one magnetic pole piece 3a constituting the unit core 2a. Is passed along the winding start line escape groove 75 of the insulating bobbin 7 of the other magnetic pole piece 3b, and subsequently wound around the one magnetic pole piece 3a around the tooth portion 32 of the other magnetic pole piece 3b. The winding 4 is applied in a direction opposite to the direction (in this example, counterclockwise when viewed from the back yoke portion 31 side).

その際、巻線４を施す作業を行っていない一方の磁極片３ａが常にフライヤ９の旋回先端の回転面Ｑよりも外側（図１０では符号Ｐ２で示す箇所）に位置するようにユニットコア２ａの配置位置を設定して巻線作業を行うことで、これに連結された一方の磁極片３ａにフライヤ９が干渉することを確実に避けることができる。また、一つのユニットコア２ａを構成する一対の磁極片３ａ，３ｂの内、巻線４を施す作業を行っていない他方の磁極片３ａとは反対側の位置（図１０では符号Ｐ１で示す箇所）でフライヤ９をＺ方向にスライドさせる。これは、巻線４を長い距離移動させる必要がある場合でも、他方の磁極片３ａにフライヤ９が干渉することを確実に避けることができるので都合が良い。   At this time, the unit core 2a is so positioned that one of the magnetic pole pieces 3a not subjected to the operation of applying the winding 4 is always located outside the rotation surface Q at the turning tip of the flyer 9 (a portion indicated by reference numeral P2 in FIG. 10). The winding position is set and the winding work is performed, so that it is possible to reliably avoid the flyer 9 from interfering with one of the magnetic pole pieces 3a connected thereto. Further, of the pair of magnetic pole pieces 3a and 3b constituting one unit core 2a, the position opposite to the other magnetic pole piece 3a where the winding 4 is not performed (the place indicated by P1 in FIG. 10). ) To slide the flyer 9 in the Z direction. This is convenient because it is possible to reliably avoid the flyer 9 from interfering with the other magnetic pole piece 3a even when the winding 4 needs to be moved a long distance.

次に、鉄心保持治具８を回転し、磁極片３ｃをフライヤ９の正面位置（図１０の磁極片３ａの位置）に移動させる。このとき、他方の磁極片３ｂに巻いた巻線４の巻き終わり部分を切断することなく、他方のユニットコア２ｂに至るだけの所定長さ分を渡り線４１として確保した後、他方のユニットコア２ｂを構成する一方の磁極片３ｃに対して、巻線４を巻始め線逃がし溝７５に沿わせてから、磁極片３ｂと同じ方向（バックヨーク部３１側から見て左回り）に巻線４を施す。   Next, the iron core holding jig 8 is rotated to move the magnetic pole piece 3c to the front position of the flyer 9 (the position of the magnetic pole piece 3a in FIG. 10). At this time, after the winding end portion of the winding 4 wound around the other magnetic pole piece 3b is not cut, a predetermined length enough to reach the other unit core 2b is secured as the crossover wire 41, and then the other unit core. Winding the winding 4 in the same direction as the magnetic pole piece 3b (counterclockwise when viewed from the back yoke portion 31 side) with respect to one of the magnetic pole pieces 3c constituting 2b. 4 is applied.

その際、巻線４を施す作業を行っていない他方の磁極片３ｄが常にフライヤ９の旋回先端の回転面Ｑよりも外側（図１０では符号Ｐ３で示す箇所）に位置するようにユニットコア２ｂの配置位置を設定して巻線作業を行うことで、これに連結された他方の磁極片３ｄにフライヤ９が干渉することを確実に避けることができる。また、一つのユニットコア２ｂを構成する一対の磁極片３ｃ，３ｄの内、巻線４を施す作業を行っていない他方の磁極片３ｄとは反対側の位置（図１０では符号Ｐ４で示す箇所）でフライヤ９をＺ方向にスライドさせる。これは、巻線４を長い距離移動させる必要がある場合でも、他方の磁極片３ｄにフライヤ９が干渉することを確実に避けることができるので都合が良い。   At this time, the unit core 2b is arranged such that the other magnetic pole piece 3d that is not subjected to the operation of applying the winding 4 is always positioned outside the rotation surface Q at the turning tip of the flyer 9 (location indicated by P3 in FIG. 10). When the winding operation is performed with the arrangement position of, the flyer 9 can be reliably prevented from interfering with the other magnetic pole piece 3d connected thereto. Further, of the pair of magnetic pole pieces 3c and 3d constituting one unit core 2b, the position opposite to the other magnetic pole piece 3d that is not subjected to the operation of applying the winding 4 (the place indicated by P4 in FIG. 10). ) To slide the flyer 9 in the Z direction. This is convenient because it is possible to reliably avoid the flyer 9 from interfering with the other magnetic pole piece 3d even when the winding 4 needs to be moved a long distance.

最後に、鉄心保持治具８を回転し、他方の磁極片３ｄをフライヤ９の正面位置（図１０の磁極片３ａの位置）に移動させる。このとき、このユニットコア２ｂを構成する一方の磁極片３ｃに巻回した巻線４の巻き終わり部分４４を切断することなくこれを渡り線４４として、絶縁用ボビン７の巻線端末部収納溝７６を通した後、他方の磁極片３ｄの絶縁用ボビン７の巻始め線逃がし溝７５に沿わせ、続いて、この他方の磁極片３ｄのティース部３２に対して一方の磁極片３ｃに巻いた方向とは逆方向（この例ではバックヨーク部３１側から見て左右回り）に巻線４を施す。   Finally, the iron core holding jig 8 is rotated, and the other magnetic pole piece 3d is moved to the front position of the flyer 9 (position of the magnetic pole piece 3a in FIG. 10). At this time, the winding end portion storage groove of the insulating bobbin 7 can be used as the connecting wire 44 without cutting the winding end portion 44 of the winding 4 wound around the one magnetic pole piece 3c constituting the unit core 2b. After passing through 76, along the winding start line escape groove 75 of the insulating bobbin 7 of the other magnetic pole piece 3d, and subsequently wound around one of the magnetic pole pieces 3c around the tooth portion 32 of the other magnetic pole piece 3d. The winding 4 is applied in a direction opposite to the direction in which it is wound (in this example, left and right as viewed from the back yoke portion 31 side).

その際、巻線４を施す作業を行っていない一方の磁極片３ｃが常にフライヤ９の旋回先端の回転面Ｑよりも外側（図１０では符号Ｐ４で示す箇所）に位置するようにユニットコア２ｂの配置位置を設定して巻線作業を行うことで、これに連結された一方の磁極片３ｃにフライヤ９が干渉することを確実に避けることができる。また、一つのユニットコア２ｂを構成する一対の磁極片３ｃ，３ｄの内、巻線４を施す作業を行っていない他方の磁極片３ｃとは反対側の位置（図１０では符号Ｐ３で示す箇所）でフライヤ９をＺ方向にスライドさせる。これは、巻線を長い距離移動させる必要がある場合でも、他方の磁極片３ｃにフライヤ９が干渉することを確実に避けることができるので都合が良い。   At that time, the unit core 2b is arranged such that one of the magnetic pole pieces 3c that is not subjected to the operation of applying the winding 4 is always located outside the rotation surface Q at the turning tip of the flyer 9 (location indicated by P4 in FIG. 10). When the winding position is set and the winding work is performed, it is possible to reliably avoid the flyer 9 from interfering with one of the magnetic pole pieces 3c connected thereto. In addition, of the pair of magnetic pole pieces 3c and 3d constituting one unit core 2b, the position opposite to the other magnetic pole piece 3c that is not subjected to the work of applying the winding 4 (the place indicated by P3 in FIG. 10). ) To slide the flyer 9 in the Z direction. This is convenient because it is possible to surely prevent the flyer 9 from interfering with the other magnetic pole piece 3c even when it is necessary to move the winding for a long distance.

こうして、２個１組のユニットコア２ａ，２ｂの各々の磁極片３ａ，３ｂ，３ｃ，３ｄのティース部３２に巻線４を施した後、これらの各ユニットコア２ａ，２ｂを鉄心保持治具８から取り外し、図１１に示すように、ティース部３２を逆反り状態から両者が円弧状となるように元に戻すことで、Ｖ相に対応する２個１組のユニットコア２ａ，２ｂに対して連続して巻線４が施される。   Thus, after the winding 4 is applied to the teeth 32 of each of the magnetic pole pieces 3a, 3b, 3c, 3d of the set of two unit cores 2a, 2b, the unit cores 2a, 2b are fixed to the iron core holding jig. 8 and removing the teeth portion 32 from the reverse warped state so that both of them are arcuate as shown in FIG. 11, the two unit cores 2a and 2b corresponding to the V phase The winding 4 is applied continuously.

以下、同様にしてＵ相およびＷ相に対応するユニットコア２の２個１組に対しても巻線４を施し、これらのユニットコア２の２個１組を３組用いて、これらの３組が図２に示したように周方向に沿って順次６０度ずつずらせて配置して円環状にする。そして、溶接や接着等により各ユニットコア２の互いに隣接する端面同士を結合することで一体化する。続いて、図３、図４（ａ）に示した結線状態となるように結線処理を行い、また、巻線端末部収納溝７６に巻線端末部を収納し（図示せず）、紐や結束バンド等を巻線固定孔７７に挿入して巻線端末部を固定する。これにより、１０極１２ティースの３相ＤＣブラシレスモータ用の固定子が構成される。   In the same manner, the winding 4 is also applied to a set of two unit cores 2 corresponding to the U phase and the W phase, and three sets of these two unit cores 2 are used. As shown in FIG. 2, the set is shifted by 60 degrees sequentially along the circumferential direction to form an annular shape. And it integrates by joining the mutually adjacent end surfaces of each unit core 2 by welding, adhesion, etc. Subsequently, a connection process is performed so that the connection state shown in FIG. 3 and FIG. 4A is obtained, and the winding terminal portion is stored in the winding terminal portion storing groove 76 (not shown), A binding band or the like is inserted into the winding fixing hole 77 to fix the winding terminal portion. Thus, a stator for a three-phase DC brushless motor having 10 poles and 12 teeth is configured.

以上のように、この実施の形態１の回転電機においては、例えば１０極１２ティースで直列スター結線を行う場合、従来技術では、渡り線４１を経由して切れ目なく全て連続して巻線４を巻き付ける必要があるので、巻線端末部の接続回数が多くなるのに対して、この実施の形態１の構成では、図４（ａ）に示したように、２つのユニットコア２の相互間を渡り線４１を経由して切断することなく連続に巻き付けることで１相分の巻線４が得られるため、巻線端末部の接続回数を削減することができ、安価な回転電機の固定子を得ることができる。   As described above, in the rotating electrical machine according to the first embodiment, for example, when serial star connection is performed with 10 poles and 12 teeth, in the conventional technique, the windings 4 are all continuously connected without a break through the connecting wire 41. Since it is necessary to wind, the number of times of connection of the winding terminal portion is increased. On the other hand, in the configuration of the first embodiment, as shown in FIG. Since the winding 4 for one phase is obtained by continuously winding without cutting through the crossover wire 41, the number of connections of the winding terminal can be reduced, and an inexpensive rotating electrical machine stator can be provided. Can be obtained.

また、図１０に示したような自動巻線機を使用する場合、従来技術（例えば先の特許文献２）では、Ｖ相の巻線４を施す際に４個全ての連結体５０を保持せねばならず、自動巻線機が大型化するのに対して、この実施の形態１では、２個１組のユニットコア２を同時に保持できれば各相に連続して巻線作業を実施できるため、装置の小型化と機能の簡略化が図れ、製作費用を抑制できる。   In the case of using an automatic winding machine as shown in FIG. 10, in the prior art (for example, the above-mentioned Patent Document 2), when the V-phase winding 4 is applied, all four coupling bodies 50 are held. In contrast to the increase in the size of the automatic winding machine, in the first embodiment, the winding work can be carried out continuously for each phase if two sets of unit cores 2 can be held simultaneously. The downsizing of the device and the simplification of functions can be achieved, and the manufacturing cost can be suppressed.

また、従来技術（例えば先の特許文献２）の場合には連結体５０として３個分の磁極片３が一体連結された状態の金型を製作する必要がある。これに対して、この実施の形態１では、２個分の磁極片３が連結されたユニットコア２のみ製作できればよいので、３個分の磁極片３が一体連結された状態の金型を製作する場合に比べて金型は比較的小型になり、金型費用を抑制することができる。   Further, in the case of the prior art (for example, the above-mentioned Patent Document 2), it is necessary to manufacture a mold in which three magnetic pole pieces 3 are integrally connected as the connecting body 50. On the other hand, in the first embodiment, only the unit core 2 to which the two magnetic pole pieces 3 are connected needs to be manufactured. Therefore, a mold in which the three magnetic pole pieces 3 are integrally connected is manufactured. Compared to the case, the mold becomes relatively small, and the mold cost can be suppressed.

さらに、絶縁用ボビン７に巻始め線逃がし溝７５を設けたことで、巻線４の巻き始め部分とそれ以降に巻かれる部分との干渉を避けることができ、これを左右に設けたことで左回りおよび右回りの巻線４を施す場合のいずれにおいても、整列性の高い巻き付けを行うことができる。そして、巻線端末部収納溝７６に巻線端末部を収納し、巻線固定孔７７に紐や結束バンド等で固定することができるため、電位差が高い各相間での接触を避けることができて絶縁不良を抑制することができる。また、中性点Ｎの固定も容易に行える。   Further, by providing the winding start wire escape groove 75 on the insulating bobbin 7, interference between the winding start portion of the winding 4 and the portion wound thereafter can be avoided, and this is provided on the left and right. In any case where the counterclockwise and clockwise windings 4 are applied, winding with high alignment can be performed. Since the winding terminal portion can be stored in the winding terminal portion storing groove 76 and fixed to the winding fixing hole 77 with a string, a binding band or the like, contact between each phase having a high potential difference can be avoided. Insulation failure can be suppressed. Further, the neutral point N can be easily fixed.

実施の形態２．
図１３は本発明の実施の形態２における回転電機において、固定子を構成するためのユニットコア２の平面図、図１４は同ユニットコア２を組み合わせて構成された固定子の断面図であり、実施の形態１と対応もしくは相当する構成部分には同一の符号を示す。なお、図１４はユニットコア２に嵌着される絶縁用ボビン７やティース部３２に巻き付けられる巻線４は省略している。 Embodiment 2. FIG.
FIG. 13 is a plan view of a unit core 2 for configuring the stator in the rotating electric machine according to Embodiment 2 of the present invention, and FIG. 14 is a cross-sectional view of a stator configured by combining the unit cores 2. Components corresponding to or corresponding to those of the first embodiment are denoted by the same reference numerals. In FIG. 14, the insulating bobbin 7 fitted to the unit core 2 and the winding 4 wound around the tooth portion 32 are omitted.

この実施の形態２においても、一対の磁極片３を有するユニットコア２を備え、このユニットコア２は、上記各磁極片３がバックヨーク部３１とこのバックヨーク部３１から突出したティース部３２とを有するとともに、互いに隣接する上記バックヨーク部３１同士が折り曲げ可能に連結されており、このユニットコア２の２個を１組として連続して巻線４が施されるとともに、この巻装されたユニットコア２の２個１組を３組使用し、これを円環状に配置されて固定子が構成されている。   Also in the second embodiment, a unit core 2 having a pair of magnetic pole pieces 3 is provided. The unit core 2 includes a back yoke portion 31 and a teeth portion 32 projecting from the back yoke portion 31. The back yoke portions 31 adjacent to each other are connected to each other so that they can be bent, and the winding 4 is continuously applied as two sets of the unit cores 2 as a set. Three sets of two unit cores 2 are used and arranged in an annular shape to form a stator.

ここで、実施の形態１では各ユニットコア２の互いに隣接する突き合わせ端部同士が溶接や接着により一体結合されているが、この実施の形態２では、ユニットコア２の両端面にそれぞれ形成されている凹部２５と凸部２６とを嵌め合わせることにより、端面同士が一体的に結合されている。   Here, in the first embodiment, the butted ends adjacent to each other of the unit cores 2 are integrally coupled by welding or adhesion, but in the second embodiment, the unit cores 2 are formed on both end surfaces of the unit core 2, respectively. By fitting the concave portion 25 and the convex portion 26, the end faces are integrally coupled.

上記のように各ユニットコア２の両端面の一方側には凹部２５が、他方側には凸部２６が設けられているが、これらの凹部２５と凸部２６の具体的な形状は図１５に示すようになっている。   As described above, the concave portions 25 are provided on one side of both end faces of each unit core 2 and the convex portions 26 are provided on the other side. The specific shapes of these concave portions 25 and convex portions 26 are shown in FIG. It is as shown in.

すなわち、凹部２５には、図１５（ａ）、（ｂ）に示すようにアリ溝状の２種類の形状のものがあり、以下、両者を区別するために図１５（ａ）に示す形状の凹部２５を第１凹部２５ａと、図１５（ｂ）に示す形状の凹部２５を第２凹部２５ｂと称する。また、凸部２６は、図１５（ｃ）、（ｄ）に示すようにアリ溝状の２種類の形状のものがあり、両者を区別するために図１５（ｃ）に示す形状の凸部２６を第１凸部２６ａと、図１５（ｄ）に示す形状の凸部２６を第２凸部２６ｂと称する。   That is, the recess 25 has two types of dovetail shapes as shown in FIGS. 15 (a) and 15 (b). Hereinafter, the shape shown in FIG. The recess 25 is referred to as a first recess 25a, and the recess 25 having the shape shown in FIG. 15B is referred to as a second recess 25b. Further, the convex portion 26 has two types of dovetail shapes as shown in FIGS. 15C and 15D, and the convex portion of the shape shown in FIG. 26 is referred to as a first convex portion 26a, and the convex portion 26 having the shape shown in FIG. 15D is referred to as a second convex portion 26b.

ここに、第１、第２凹部２５ａ、２５ｂ、および第１、第２凸部２６ａ、２６ｂの各形状の関係を説明する。   Here, the relationship of each shape of the 1st, 2nd recessed part 25a, 25b and the 1st, 2nd convex part 26a, 26b is demonstrated.

第１凹部２５ａに対して、第１凸部２６ａは周方向からの挿入ができず積層方向（回転電機の出力軸方向）からの挿入のみが可能であり、第２凸部２６ｂは周方向および積層方向の双方からの挿入が可能となるような形状に形成されている。また、第２凹部２５ｂに対して、第１凸部２６ａおよび第２凸部２６ｂは、共に周方向および積層方向の双方からの挿入が可能となるような形状に形成されている。   The first convex portion 26a cannot be inserted from the circumferential direction with respect to the first concave portion 25a, and can only be inserted from the stacking direction (output shaft direction of the rotating electrical machine), and the second convex portion 26b can be inserted in the circumferential direction and It is formed in a shape that allows insertion from both sides in the stacking direction. In addition, the first convex portion 26a and the second convex portion 26b are both formed in a shape that allows insertion from both the circumferential direction and the stacking direction with respect to the second concave portion 25b.

したがって、これらの第１、第２凹部２５ａ、２５ｂと第１、第２凸部２６ａ、２６ｂの各形状の関係により、これらを嵌め合わせる際には、図１６（ａ）〜（ｄ）に示すような組み合わせが生じる。すなわち、図１６（ａ）に示す第１凹部２５ａと第１凸部２６ａの組み合わせは、第１凹部２５ａに対して第１凸部２６ａの積層方向からの挿入は許容するが、周方向からの挿入は許容しない嵌合形態（以下、これを第１嵌合形態と称する）Ｘとなる。また、図１６（ｂ）〜（ｄ）に示すように、第１凹部２５ａと第２凸部２６ｂ、第２凹部２５ｂと第１凸部２６ａ、第２凹部２５ｂと第２凸部２６ｂの各組み合わせは、いずれも周方向および積層方向の双方からの挿入を許容する嵌合形態（以下、これを第２嵌合形態と称する）Ｙとなる。   Accordingly, when the first and second concave portions 25a and 25b and the first and second convex portions 26a and 26b are related to each other due to the relationship between the shapes of the first and second concave portions 25a and 25b, as shown in FIGS. Such a combination occurs. That is, the combination of the first concave portion 25a and the first convex portion 26a shown in FIG. 16A allows insertion of the first convex portion 26a from the stacking direction into the first concave portion 25a, but from the circumferential direction. Insertion is a fitting form (hereinafter referred to as a first fitting form) X that is not allowed to be inserted. Further, as shown in FIGS. 16B to 16D, each of the first concave portion 25a and the second convex portion 26b, the second concave portion 25b and the first convex portion 26a, and the second concave portion 25b and the second convex portion 26b. The combination is a fitting form (hereinafter referred to as a second fitting form) Y that allows insertion from both the circumferential direction and the stacking direction.

そして、各ユニットコア２の突き合わした端面同士を一体的に結合するためには、ユニットコア２の組立完了時に、上記の第１嵌合形態Ｘと第２嵌合形態Ｙとが積層鉄心の積層方向に沿って所定枚数分ずつ交互に発生するように、予め各ユニットコア２を次のように積層配置する。   And in order to couple | bond together the end surfaces which each unit core 2 faced, at the time of completion of the assembly of the unit core 2, said 1st fitting form X and 2nd fitting form Y are laminated | stacked iron cores. The unit cores 2 are previously stacked in the following manner so that a predetermined number of sheets are alternately generated along the stacking direction.

例えば、図１７（ａ）に示すように、積層方向の上から順に、１枚目〜４枚目のユニットコア２については、第１嵌合形態Ｘが生じるように、その一方（図中左側）の端面に第１凹部２５ａ（図中斜線で示す）が、他方（図中右側）の端面に第１凸部２６ａ（図中斜線で示す）が形成され、５枚目〜９枚目のユニットコア２については、第２嵌合形態Ｙが生じるように、その一方の端面に第２凹部２５ｂが、他方の端面には第２凸部２６ｂが形成されている。また、１０枚目〜１３枚目のユニットコア２については、第１嵌合形態Ｘが生じるように、その一方の端面に第１凹部２５ａ（図中斜線で示す）が、他方の端面に第１凸部２６ａ（図中斜線で示す）が形成され、１４枚目〜２５枚目のユニットコア２については、第２嵌合形態Ｙが生じるように、その一方の端面に第２凹部２５ｂが、他方の端面には第２凸部２６ｂが形成されている。以下、第１嵌合形態Ｘと第２嵌合形態Ｙとがユニットコア２の積層方向に沿って所定枚数分ずつ交互に発生するように配置されている。   For example, as shown in FIG. 17 (a), the first to fourth unit cores 2 in order from the top in the stacking direction are arranged so that the first fitting form X occurs (on the left side in the figure). ) Are formed on the end surface of the first concave portion 25a (shown by hatching in the drawing), and the first protrusion 26a (shown by hatching in the drawing) is formed on the other end surface (right side of the drawing). About the unit core 2, the 2nd recessed part 25b is formed in the one end surface, and the 2nd convex part 26b is formed in the other end surface so that the 2nd fitting form Y may arise. The tenth to thirteenth unit cores 2 have a first recess 25a (indicated by hatching in the drawing) on one end face and a second end face so that the first fitting form X occurs. One convex portion 26a (shown by hatching in the figure) is formed, and the second concave portion 25b is formed on one end surface of the unit core 2 of the 14th to 25th sheets so that the second fitting form Y occurs. The second protrusion 26b is formed on the other end surface. Hereinafter, the first fitting form X and the second fitting form Y are arranged so as to alternately occur by a predetermined number along the stacking direction of the unit cores 2.

このようにして構成されたユニットコア２の両端部を一体的に結合するには、図１７（ａ）に示すようにユニットコア２が積層方向に４枚分だけ位置ずれするように、その端面同士を突き合わせ、次に図１７（ｂ）に示すように、各ユニットコア２の両端面に形成されている凹部２５と凸部２６とを嵌め合わせる。この場合、各ユニットコア２には図１６（ａ）で示したような第１嵌合形態Ｘは生じず、図１６（ｂ）〜（ｄ）に示したような第２嵌合形態Ｙとなる。したがって、各ユニットコア２の一方の端面に設けられている各凹部２５に対して、他方の端面に設けられている各凸部２６を全ての周方向から挿入することができる。   In order to integrally connect both ends of the unit core 2 configured in this way, as shown in FIG. 17A, the end surfaces of the unit cores 2 are displaced so as to be displaced by four in the stacking direction. Next, as shown in FIG. 17B, the concave portions 25 and the convex portions 26 formed on both end surfaces of each unit core 2 are fitted together. In this case, each unit core 2 does not have the first fitting form X as shown in FIG. 16A, and the second fitting form Y as shown in FIGS. 16B to 16D. Become. Therefore, each convex part 26 provided in the other end surface can be inserted into each concave part 25 provided in one end surface of each unit core 2 from all circumferential directions.

この嵌合状態では端面が積層方向に４枚分ずれているので、図１７（ｃ）に示すように、このずれを無くすように突き合わせた端部の上下面が面一となるように、ユニットコア２を積層方向に圧入する。この圧入作業によって、図中斜線で示す位置において図１６（ａ）に示したような第１嵌合形態Ｘが生じ、第１凹部２５ａに対して、第１凸部２６ａが挿入されて、両者が嵌め合わされる。その結果、ユニットコア２の突き合わせ端面同士が互いに一体的に結合される。なお、本例では、第１嵌合形態Ｘを生じる際のユニットコア２の積層枚数は４枚、第２嵌合形態Ｙを生じる際のユニットコア２の積層枚数は５枚としたが、この数に限定されるものではない。また、凹部２５と凸部２６の位置関係は各ユニットコア２について左右逆であってもよい。   In this fitted state, the end faces are shifted by 4 sheets in the stacking direction. Therefore, as shown in FIG. 17 (c), the unit is arranged so that the upper and lower surfaces of the end portions so as to eliminate this shift are flush with each other. The core 2 is press-fitted in the stacking direction. As a result of this press-fitting operation, the first fitting form X as shown in FIG. 16 (a) occurs at the position indicated by the oblique lines in the figure, and the first convex portion 26a is inserted into the first concave portion 25a. Are fitted together. As a result, the butted end surfaces of the unit core 2 are integrally coupled to each other. In this example, the number of stacked unit cores 2 when generating the first fitting form X is four, and the number of stacking unit cores 2 when generating the second fitting form Y is five. The number is not limited. The positional relationship between the concave portion 25 and the convex portion 26 may be reversed left and right for each unit core 2.

以上のように、実施の形態２の回転電機用固定子は、ユニットコア２の端面を積層方向にずらして周方向から突き合わせた後、積層方向から圧入するだけで第１嵌合形態Ｘを構成する第１凹部２５ａと第１凸部２６ａとの嵌め合いにより、突き合わせた端面同士を一体的に結合することができるので、溶接や接着が不要となる。このため、ユニットコア２の熱変形等の影響を除くことができて内径精度を確保でき、しかも突き合わせ端面同士を簡単かつ確実に固着することができるため信頼性が高く、さらに安価な回転電機用固定子を製作することが可能となる。   As described above, the stator for a rotating electrical machine according to the second embodiment configures the first fitting form X only by press-fitting from the stacking direction after the end face of the unit core 2 is shifted in the stacking direction and butted from the circumferential direction. By fitting the first concave portion 25a and the first convex portion 26a to each other, the abutted end surfaces can be joined together, so that welding and adhesion are not required. For this reason, it is possible to eliminate the influence of thermal deformation or the like of the unit core 2, to ensure the accuracy of the inner diameter, and because the butted end faces can be easily and reliably fixed to each other. A stator can be manufactured.

実施の形態３．
図１８は本発明の実施の形態３における回転電機において、固定子を構成するユニットコアのバックヨーク部に形成された凹部近傍の状態を示す平面図、図１９はユニットコアのバックヨーク部の端面の形成された凹部と凸部とを嵌め合わせた状態を示す平面図である。 Embodiment 3 FIG.
18 is a plan view showing a state in the vicinity of the recess formed in the back yoke portion of the unit core constituting the stator in the rotating electric machine according to Embodiment 3 of the present invention, and FIG. 19 is an end surface of the back yoke portion of the unit core. It is a top view which shows the state which fitted the recessed part and convex part which were formed.

この実施の形態３の特徴は、実施の形態２（図１３〜図１７）に示した構成のユニットコア２を前提として、バックヨーク部３１の各凹部２５（２５ａ，２５ｂ）近傍の外周部に径方向内方に向けて一部を切り欠いた切欠部２７が形成されていることである。   The feature of the third embodiment is that the outer periphery of the back yoke portion 31 in the vicinity of each recess 25 (25a, 25b) is based on the unit core 2 having the configuration shown in the second embodiment (FIGS. 13 to 17). That is, a cutout portion 27 is formed by cutting out a part thereof inward in the radial direction.

この場合、凹部２５（２５ａ，２５ｂ）と凸部２６（２６ａ，２６ｂ）を圧入等によって嵌め合わせると、バックヨーク部３１の凹部２５と切欠部２７との間の部分２８が径方向外方に撓むが、予め切欠部２７が形成されているため、図１９に示すように、当該部分２８がユニットコア２の外径より外側に飛び出さない状態でバックヨーク部３１の端面同士を一体的に結合することができる。そのため、固定子をシェル等に焼き嵌めする工程がある場合、シェル等への固定子の挿入を確実に行うことができるので都合が良い。   In this case, when the concave portion 25 (25a, 25b) and the convex portion 26 (26a, 26b) are fitted together by press-fitting or the like, the portion 28 between the concave portion 25 and the notch portion 27 of the back yoke portion 31 is radially outward. Although notched portion 27 is formed in advance, the end surfaces of the back yoke portion 31 are integrated with each other in a state where the portion 28 does not protrude outward from the outer diameter of the unit core 2 as shown in FIG. Can be combined. Therefore, when there is a step of shrink-fitting the stator to a shell or the like, it is convenient because the stator can be reliably inserted into the shell or the like.

実施の形態４．
図２０は本発明の実施の形態４における回転電機において、固定子を構成するユニットコアの磁極片に絶縁用ボビンを嵌着した状態の一部を示す側面図である。図２１は、各ユニットコア間を渡り線で接続する場合の変形例を示す説明図である。 Embodiment 4 FIG.
FIG. 20 is a side view showing a part of the rotating electric machine according to Embodiment 4 of the present invention in a state where an insulating bobbin is fitted to the magnetic pole piece of the unit core constituting the stator. FIG. 21 is an explanatory diagram showing a modification in the case where the unit cores are connected with a crossover.

この実施の形態４において、ユニットコア２の各磁極片３に嵌着される絶縁用ボビン７は、実施の形態１（図５〜図９）の場合と同様、バックヨーク嵌合部７２に巻線端末部収納溝７６が形成されているが、特にこの実施の形態４の特徴として、この巻線端末部収納溝７６は、外面から内方に向けて次第に傾斜したテーパ部７６ａが形成される。また、その底部７６ｂは、渡り線のゆるみ抜け防止を図る上で巻線端末部の外径に略合致した円弧状に形成されている。   In the fourth embodiment, the insulating bobbin 7 fitted to each magnetic pole piece 3 of the unit core 2 is wound around the back yoke fitting portion 72 as in the first embodiment (FIGS. 5 to 9). The wire terminal portion storage groove 76 is formed. Particularly, as a feature of the fourth embodiment, the winding terminal portion storage groove 76 is formed with a tapered portion 76a that is gradually inclined inward from the outer surface. . Further, the bottom portion 76b is formed in an arc shape that substantially matches the outer diameter of the winding terminal portion in order to prevent the jumper wire from coming loose.

この実施の形態４で回転電機用の固定子を製造する手順は、基本的に実施の形態１の場合と同様に、固定子１を形成する全てのユニットコア２を一体化した後、図１１に示したように、渡り線４１をユニットコア２の外径方向に配置させ、図３、図４（ａ）に示した結線となるように結線処理を行うが、その際、図２０の破線で示すように、ユニットコア２の相互間を結ぶ渡り線４１や、ユニットコア３内の隣接する磁極片３間を結ぶ渡り線４４を巻線端末部収納溝７６のテーパ部７６ａに沿わせて収納して底部７６ｂに着座させる。   The procedure for manufacturing a stator for a rotating electrical machine in the fourth embodiment is basically the same as that in the first embodiment. After all unit cores 2 forming the stator 1 are integrated, FIG. As shown in Fig. 20, the connecting wire 41 is arranged in the outer diameter direction of the unit core 2, and the connection processing is performed so that the connection shown in Figs. 3 and 4 (a) is obtained. As shown, the connecting wire 41 connecting the unit cores 2 and the connecting wire 44 connecting the adjacent magnetic pole pieces 3 in the unit core 3 are arranged along the taper portion 76a of the winding terminal portion storing groove 76. Store and seat on the bottom 76b.

これにより、渡り線４１，４４を巻線端末部収納溝７６内に収納する際に、渡り線４１，４４の収納が容易となるとともに、収納後は渡り線４１，４４が巻線端末部収納溝７６から不意に抜け落ちるのを防止することができ、電位差が高い他相の渡り線との接触を避けることができる。また、巻線４の最初の巻き始め部分や、最後の巻き終わり部分についても、同様に巻線端末部収納溝７６から不意に抜け落ちるのを防止することができ、電位差が高い他相の巻き始め部分や、最後の巻き終わり部分との接触を避けることができるので都合がよい。   Thereby, when the connecting wires 41 and 44 are stored in the winding terminal portion storing groove 76, the connecting wires 41 and 44 are easily stored, and after the storing, the connecting wires 41 and 44 are stored in the winding terminal portion. Abrupt removal from the groove 76 can be prevented, and contact with crossover wires of other phases having a high potential difference can be avoided. Similarly, the first winding start portion and the last winding end portion of the winding 4 can be similarly prevented from suddenly falling out of the winding terminal portion housing groove 76, and the winding start of another phase with a high potential difference can be prevented. This is convenient because it can avoid contact with the part and the last winding end part.

なお、先の図１１に示した例では、２個１組の各ユニットコア２ａ，２ｂ相互間を結ぶ渡り線４１は、固定子１の外周に沿わせたようにしているが、全てのユニットコア２を円環状に結合する工程時に渡り線４１が各ユニットコア２に干渉するのを避けることができる態様ならばどのように引き回すかについては特別な制約はなく、例えば、円環状に配置される各ユニットコア２の径方向の内方側に位置させたり、あるいは径方向の外方側に位置させることができる。特に、図２１に示すように、渡り線４１をユニットコア２の内径方向に配置させる場合には、全てのユニットコア２を円環状に結合する際、渡り線４１が各ユニットコア２に干渉するのを避けることができ、かつ、渡り線４１の長さをユニットコア２の外径方向に確保する場合に比べて短くできるので都合が良い。   In the example shown in FIG. 11, the connecting wire 41 connecting the two unit cores 2a and 2b is set along the outer periphery of the stator 1, but all units are connected. There is no particular limitation on how to route the cores 2 so long as they can avoid interfering with the unit cores 2 during the process of joining the cores 2 in an annular shape. For example, the cores 2 are arranged in an annular shape. Each unit core 2 can be located on the radially inner side or on the radially outer side. In particular, as shown in FIG. 21, when the connecting wires 41 are arranged in the inner diameter direction of the unit core 2, the connecting wires 41 interfere with the unit cores 2 when all the unit cores 2 are connected in an annular shape. This is convenient because the length of the connecting wire 41 can be shortened as compared with the case where the length of the connecting wire 41 is secured in the outer diameter direction of the unit core 2.

１ 固定子、２ ユニットコア、２５ 凹部、２６ 凸部、３ 磁極片、
３１ バックヨーク部、３２ ティース部、３３ 薄肉部、４ 巻線、
４１，４４ 渡り線、７ 絶縁用ボビン、７５ 巻始め線逃がし溝、
７６ 巻線端末部収納溝、７６ａ テーパ部、７６ｂ 底部、７７ 巻線固定孔、
８ 鉄心保持治具、９ フライヤ、Ｑ 回転面、Ｘ 第１嵌合形態、Ｙ 第２嵌合形態。 1 Stator, 2 Unit core, 25 Concave part, 26 Convex part, 3 Pole piece,
31 Back yoke part, 32 teeth part, 33 thin part, 4 windings,
41, 44 Crossover, 7 bobbin for insulation, 75 winding start line relief groove,
76 Winding terminal storage groove, 76a taper, 76b bottom, 77 winding fixing hole,
8 Iron core holding jig, 9 flyer, Q rotating surface, X first fitting form, Y second fitting form.

Claims (7)

出力軸方向に沿って薄板を積層した積層鉄心からなる２個の磁極片を有するユニットコアを備え、このユニットコアは、上記磁極片がバックヨーク部とこのバックヨーク部から突出したティース部とを有するとともに、互いに隣接する上記バックヨーク部同士が折り曲げ可能に連結されており、このユニットコアの２個を１組として巻線が施されるとともに、この２個１組のユニットコアの３組が円環状に配置されて固定子が構成されたものであって、
上記ユニットコアの２個１組が３相交流のそれぞれのＵ，Ｖ，Ｗ相の内の１相に対応するとともに、上記ユニットコアを１単位として周方向に沿って順次互いに異なる相となるように配列されており、上記１相分に対応する上記ユニットコアの２個１組に含まれる全ての上記磁極片には巻線が切断されずに連続して巻き付けられるとともに、上記ユニットコアを構成する２個の上記磁極片同士の巻線の巻き付け方向は互いに逆向きであり、かつ各相が異なるユニットコアの互いに隣接する上記磁極片同士の巻線の巻き付け方向は互いに同じになるように巻き付けられ、各相に対応する上記巻線の巻終り端部同士または巻始め端部同士を互いに接続して中性点として直列スター結線が構成されていることを特徴とする回転電機。 A unit core having two magnetic pole pieces composed of laminated iron cores laminated with thin plates along the output axis direction is provided. The unit core includes a back yoke portion and a tooth portion protruding from the back yoke portion. and we are having, are foldably connected to the above back yoke portion adjacent to each other, together with winding is subjected to two of the unit cores as a pair, three pairs of the set of two unit cores Are arranged in an annular shape to form a stator ,
Each set of two unit cores corresponds to one of the U, V, and W phases of the three-phase alternating current, and the unit cores become one unit and sequentially become different phases along the circumferential direction. All the magnetic pole pieces included in one set of two unit cores corresponding to the one phase are wound continuously without being cut, and constitute the unit core. The winding directions of the two magnetic pole pieces are opposite to each other, and the winding directions of the adjacent magnetic pole pieces of the unit cores of different phases are the same. And a series star connection is formed as a neutral point by connecting the winding end ends or the winding start ends of the windings corresponding to each phase to each other . 上記磁極片の出力軸方向の前後から嵌合される絶縁用ボビンを備え、この絶縁用ボビンを介して上記ティース部に上記巻線が巻装され、かつ、上記絶縁用ボビンには、上記巻線の端末部分を収納する巻線端末部収納溝が設けられるとともに、上記巻線の端末部分を固定する巻線固定孔が形成されていることを特徴とする請求項１に記載の回転電機。An insulating bobbin fitted from the front and rear in the output axis direction of the magnetic pole piece is provided, and the winding is wound around the teeth portion via the insulating bobbin, and the winding is wound around the insulating bobbin. The rotating electrical machine according to claim 1, wherein a winding terminal portion storing groove for storing a terminal portion of the wire is provided, and a winding fixing hole for fixing the terminal portion of the winding is formed. 上記絶縁用ボビンには、巻線の巻始め部分を上記ティース部への巻付位置よりも外側に位置させる巻始め線逃がし溝が上記ティース部の突出方向と直交する方向の左右位置に設けられていることを特徴とする請求項２に記載の回転電機。The insulating bobbin is provided with a winding start line relief groove at a right and left position in a direction perpendicular to the protruding direction of the teeth portion, which positions the winding start portion of the winding outside the winding position around the teeth portion. The rotating electrical machine according to claim 2, wherein 請求項１に記載の回転電機を製造する方法であって、フライヤと鉄心保持治具とを使用し、上記鉄心保持治具に、その回転方向に沿ってＵ，Ｖ，Ｗ相の内の１相に対応した２個１組の上記ユニットコアを互いに間隔を空け、かつ上記ティース部が上記鉄心保持治具の回転方向の外周側に位置して２個の上記磁極片同士が逆反りされて互いの間隔が広がるようにセットし、巻線を供給する上記フライヤを上記ユニットコアの一方の磁極片のティース部に対して旋回動作するとともに、上記ティース部の延伸方向に沿ってスライドし、その際、上記フライヤの旋回先端の回転面に対して、巻線を施す作業を行っていない他方の磁極片が常に外側に位置するように上記ユニットコアの位置を設定し、上記ユニットコアの２個１組に含まれる全ての上記磁極片に巻きつける巻線、および上記ユニットコアの間を結ぶ渡り線を切断せずに連続巻線する巻線作業を行い、この巻線作業を各相に対応した２個１組のユニットコアの全てに対して行った後、上記ユニットコアの各ティース部を逆反り状態から両者が円弧状となるように元に戻し、これらの２個１組のユニットコアの３組を、上記ユニットコアを１単位として周方向に沿って順次互いに異なる相となるように円環状に配置することを特徴とする回転電機の製造方法。 2. A method of manufacturing a rotating electrical machine according to claim 1, wherein a flyer and an iron core holding jig are used, and one of the U, V, and W phases is arranged along the rotation direction on the iron core holding jig. Two sets of the unit cores corresponding to the phases are spaced apart from each other, and the teeth are positioned on the outer peripheral side in the rotation direction of the iron core holding jig so that the two magnetic pole pieces are reversely warped. Set so that the distance between each other is widened, the flyer for supplying the winding is swiveled with respect to the tooth portion of one pole piece of the unit core, and slides along the extending direction of the tooth portion , time, the plane of the rotation of the turning tip end of the flyer, to set the position of the unit core as the other magnetic pole piece not subjected to working to apply the windings is always located outside, two of the units core All above in one set Winding wrapped around the pole pieces line, and perform the winding operation for continuously wound without cutting the crossover wire connecting between the unit core, a set of two unit cores corresponding to the winding process for each phase After all of the above steps are performed, the teeth of the unit core are returned to their original shape from the reverse warped state so that both of them are arcuate, and three sets of these two unit cores are replaced with the unit core. A method for manufacturing a rotating electrical machine, characterized in that the units are arranged in an annular shape so as to be sequentially different from each other along the circumferential direction . 上記ユニットコアの全てを円環状に結合する工程で、上記ユニットコアの間の上記渡り線を径方向の内方側に配置させる工程を備えることを特徴とする請求項４に記載の回転電機の製造方法。5. The rotating electrical machine according to claim 4, further comprising a step of arranging all of the unit cores in an annular shape and disposing the connecting wires between the unit cores on a radially inward side. Production method. 上記巻線作業においては、上記巻線の巻始め部分を上記ティース部への巻付位置よりも外側に位置させる巻始め線逃がし溝と上記巻線の端末部分を収納する巻線端末部収納溝と上記巻線の端末部分を固定する巻線固定孔とがそれぞれ形成された絶縁用ボビンを適用し、この絶縁用ボビンを各々の上記磁極片の出力軸方向の前後から嵌合し、この絶縁用ボビンを介して上記ユニットコアの一方の上記磁極片に巻線した後、上記渡り線を上記絶縁用ボビンの上記巻線端末部収納溝を通した後、他方の上記磁極片の上記絶縁用ボビンの上記巻き始め線逃がし溝に沿わせる工程を含むことを特徴とする請求項４または請求項５に記載の回転電機の製造方法。In the winding operation, a winding start portion relief groove for storing the winding start portion of the winding outside the winding position around the teeth portion and a winding terminal portion accommodation groove for accommodating the end portion of the winding. And an insulating bobbin in which a winding fixing hole for fixing the end portion of the winding is formed, and the insulating bobbin is fitted from the front and rear in the output axis direction of each of the magnetic pole pieces. After winding on one of the magnetic pole pieces of the unit core via the bobbin for the purpose, after passing the connecting wire through the winding terminal portion storage groove of the bobbin for insulation, the insulation for the other magnetic pole piece 6. The method of manufacturing a rotating electrical machine according to claim 4, further comprising a step of causing the bobbin to follow the winding start line relief groove. 上記巻線作業においては、２個１組の上記ユニットコアの内、一方の上記ユニットコアの上記磁極片に巻いた巻線の巻き終わり部分を切断することなく、他方のユニットコアに至るだけの所定長さ分を渡り線として確保した後、他方の上記ユニットコアを構成する一方の上記磁極片に対して、上記巻線を上記巻始め線逃がし溝に沿わせる工程を含むことを特徴とする請求項６に記載の回転電機の製造方法。In the winding operation, the winding end portion of the winding wound around the magnetic pole piece of one of the unit cores in one set of the two unit cores is not cut, and only the other unit core is reached. After securing a predetermined length as a crossover wire, the method includes a step of bringing the winding along the winding start line relief groove with respect to one of the magnetic pole pieces constituting the other unit core. The manufacturing method of the rotary electric machine of Claim 6.
JP2009095435A 2009-04-10 2009-04-10 Rotating electric machine and manufacturing method thereof Active JP5356897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009095435A JP5356897B2 (en) 2009-04-10 2009-04-10 Rotating electric machine and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009095435A JP5356897B2 (en) 2009-04-10 2009-04-10 Rotating electric machine and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JP2010246352A JP2010246352A (en) 2010-10-28
JP5356897B2 true JP5356897B2 (en) 2013-12-04

Family

ID=43098763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009095435A Active JP5356897B2 (en) 2009-04-10 2009-04-10 Rotating electric machine and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP5356897B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106471712A (en) * 2014-07-01 2017-03-01 大金工业株式会社 Armature, electric rotating machine, cross flow fan, the manufacture method of armature projection pair
US11316388B2 (en) 2019-06-24 2022-04-26 Shinano Kenshi Kabushiki Kaisha Stator, method of manufacturing stator, and outer rotor type motor
DE102021202678A1 (en) 2021-03-19 2022-09-22 Robert Bosch Gesellschaft mit beschränkter Haftung Method for producing a stator, and a stator and an electrical machine having such

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5701171B2 (en) * 2011-07-12 2015-04-15 三菱電機株式会社 Manufacturing method of stator for rotating electric machine and stator for rotating electric machine
JP5950741B2 (en) * 2012-07-26 2016-07-13 三菱電機株式会社 Winding device and winding method
JP2014108029A (en) * 2012-11-30 2014-06-09 Hitachi Automotive Systems Ltd Rotary electric machine simplifying bus bar structure by continuous winding
JP6242277B2 (en) * 2014-04-21 2017-12-06 三菱電機株式会社 Stator, stator manufacturing method, and stator winding device
JP6293712B2 (en) * 2015-08-27 2018-03-14 株式会社三井ハイテック Armature and method for manufacturing armature
DE112017000839T5 (en) 2016-02-16 2018-11-22 Mitsubishi Electric Corporation Stator for a rotary electric machine, rotary electric machine using the same, and manufacturing method for a stator for a rotary electric machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3017085B2 (en) * 1995-11-02 2000-03-06 三菱電機株式会社 Rotating electric machine and method of manufacturing the same
JP4112535B2 (en) * 2004-07-30 2008-07-02 株式会社一宮電機 Stator and brushless motor
JP4709114B2 (en) * 2006-10-03 2011-06-22 三菱電機株式会社 Stator for rotating electrical machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106471712A (en) * 2014-07-01 2017-03-01 大金工业株式会社 Armature, electric rotating machine, cross flow fan, the manufacture method of armature projection pair
CN106471712B (en) * 2014-07-01 2019-01-18 大金工业株式会社 The manufacturing method of armature, rotating electric machine, cross flow fan, armature projection pair
US10320253B2 (en) 2014-07-01 2019-06-11 Daikin Industries, Ltd. Armature, rotating electric machine, cross-flow fan, and method for manufacturing pair of teeth of armature
US11316388B2 (en) 2019-06-24 2022-04-26 Shinano Kenshi Kabushiki Kaisha Stator, method of manufacturing stator, and outer rotor type motor
DE102021202678A1 (en) 2021-03-19 2022-09-22 Robert Bosch Gesellschaft mit beschränkter Haftung Method for producing a stator, and a stator and an electrical machine having such

Also Published As

Publication number Publication date
JP2010246352A (en) 2010-10-28

Similar Documents

Publication Publication Date Title
JP5356897B2 (en) Rotating electric machine and manufacturing method thereof
JP5405880B2 (en) Stator and rotating electric machine using the same
JP5563802B2 (en) Winding method for brushless motor
US8963395B2 (en) Motor core, stator, and method for manufacturing stator
JP2007108035A (en) Variable reluctance type angle detector
JP2013211956A (en) Rotary electric machine
JP5390915B2 (en) Manufacturing method of stator for rotating electric machine
WO2018151133A1 (en) Brushless motor
WO2017111085A1 (en) Stator coil, method for manufacturing stator, and dynamo-electric machine
JP2014011900A (en) Stator and motor
JP2010074889A (en) Motor stator and method for manufacturing stator
JP5645998B2 (en) Manufacturing method of stator for rotating electric machine
JP5181627B2 (en) Rotating electric machine and method of manufacturing rotating electric machine
JP2014011901A (en) Stator, motor, and method of manufacturing stator
JP5680397B2 (en) Electric motor stator
JP2010183660A (en) Stator, brushless motor, method of manufacturing the stator, and method of manufacturing the brushless motor
JP2014075922A (en) Stator of electric motor, and electric motor
JPWO2016208629A1 (en) Stator for rotating electrical machine, rotating electrical machine, method for manufacturing stator for rotating electrical machine, method for manufacturing rotating electrical machine
WO2014157621A1 (en) Stator structure
WO2019044953A1 (en) Stator structure and resolver
JP5705153B2 (en) Rotating electric machine stator and rotating electric machine stator manufacturing method
JP5098854B2 (en) Stator coil welding method
JP2009033873A (en) Stator, and manufacturing method of stator
JP2012170253A (en) Rotary electric machine and method for manufacturing rotor
JP2005006373A (en) Coil terminal circuit structure of rotating electric machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110930

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130220

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130226

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130405

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: 20130820

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130829

R150 Certificate of patent or registration of utility model

Ref document number: 5356897

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250