JPH04222442A - Stator of motor and fabrication thereof - Google Patents
Stator of motor and fabrication thereofInfo
- Publication number
- JPH04222442A JPH04222442A JP40651090A JP40651090A JPH04222442A JP H04222442 A JPH04222442 A JP H04222442A JP 40651090 A JP40651090 A JP 40651090A JP 40651090 A JP40651090 A JP 40651090A JP H04222442 A JPH04222442 A JP H04222442A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- fixed
- stator
- yoke
- poles
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 description 13
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は積層構造から成る複数磁
極をヨークに固定する電動機の固定子、及びその製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator for an electric motor in which a plurality of magnetic poles having a laminated structure are fixed to a yoke, and a method for manufacturing the same.
【0002】0002
【従来の技術】電動機を小型化し、高いトルクを得るた
めの一手段として、固定子に設けられる複数個の磁極を
互いに独立させ、隣接する磁極へ磁束が漏れないように
構成する方法が採用されている。[Prior Art] As a means of downsizing electric motors and obtaining high torque, a method has been adopted in which a plurality of magnetic poles provided on a stator are made independent of each other to prevent magnetic flux from leaking to adjacent magnetic poles. ing.
【0003】例えばこの種の従来技術として特開平2−
123948号に係る「固定子の製造方法」が知られて
おり、該製造方法では磁極とヨークを分割して打ち抜い
た磁極鋼板を別々に所定寸法に積層したのち、前記磁極
を外周に凸凹をもつ芯金に嵌着し仮固定し、この状態で
外周開口部より絶縁材とコイル巻線部を挿入し、ヨーク
内周に形成した磁極接合部に前記磁極の先端を圧入・固
定し、各磁極が位置決め・固定されたところで前記芯金
を除去するといった工程を採用している。[0003] For example, as a prior art of this type, Japanese Patent Laid-Open No.
No. 123948 discloses a method for manufacturing a stator, in which magnetic pole steel sheets are separately punched out by dividing magnetic poles and yokes, and then laminated separately to a predetermined size, and then the magnetic poles are formed with irregularities on the outer periphery. The core metal is fitted and temporarily fixed, and in this state, the insulating material and coil winding are inserted through the outer circumferential opening, and the tips of the magnetic poles are press-fitted and fixed into the magnetic pole joint formed on the inner circumference of the yoke, and each magnetic pole is A process is adopted in which the core metal is removed after the metal core is positioned and fixed.
【0004】勿論、各磁極を放射状にブリッジにて連結
した状態で打ち抜き、外周開口部より絶縁材とコイル巻
線部を挿入後、ヨークに圧入・固定し、各磁極が独立す
るように、前記ブリッジの一部を削除する方法も知られ
ている。(例えば、特開昭60−167658号、特開
昭60−26436号等)Of course, each magnetic pole is punched out while being radially connected by a bridge, and after inserting the insulating material and the coil winding through the outer peripheral opening, it is press-fitted and fixed into the yoke, so that each magnetic pole is independent. It is also known how to remove parts of the bridge. (For example, JP-A-60-167658, JP-A-60-26436, etc.)
【0005】[0005]
【発明が解決しようとする課題】しかしながら、上記の
方法では複数磁極の積層構造から成る各磁極に巻線を装
着し、固定子ヨークへ圧入嵌合する作業は面倒で、その
能率が悪いのみならず、圧入嵌合して形成される回転子
の挿入穴の精度も悪いといった問題点を有し、また、芯
金への磁極の仮固定、並びにヨークに圧入・固定した後
での該芯金の除去作業は非常に煩雑化し、量産性のある
製造方法とは言えない。さらに、各鉄心を放射状にブリ
ッジにて連結した状態でヨークに圧入・固定し、各磁極
が独立するように前記ブリッジの一部を削除する方法は
、回転子の挿入穴にバリやカエリが生じ、該挿入穴の精
度低下によって電動機に騒音が発生するという問題点も
有している。[Problems to be Solved by the Invention] However, in the above method, the work of attaching a winding to each magnetic pole of a laminated structure of a plurality of magnetic poles and press-fitting them to the stator yoke is troublesome, and the process is not only inefficient. First, there is a problem that the precision of the rotor insertion hole formed by press-fitting is poor, and it is difficult to temporarily fix the magnetic poles to the core metal, and the core metal after press-fitting and fixing it to the yoke. The removal work is extremely complicated and cannot be said to be a manufacturing method suitable for mass production. Furthermore, the method of press-fitting and fixing each iron core into the yoke while radially connecting them with bridges and removing a part of the bridge so that each magnetic pole becomes independent may cause burrs or burrs in the insertion hole of the rotor. However, there is also the problem that noise is generated in the electric motor due to a decrease in the precision of the insertion hole.
【0006】本発明は上記従来の問題点を解決するもの
で、回転子挿入穴の寸法精度向上を図り、より簡単な方
法にて製造することの出来る電動機の固定子、及びその
製造方法を提供することを目的とする。The present invention solves the above-mentioned conventional problems, and provides a stator for an electric motor that improves the dimensional accuracy of the rotor insertion hole and can be manufactured by a simpler method, and a method for manufacturing the same. The purpose is to
【0007】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明の電動機の固定子、及びその製造方法は、積層
構造から成る複数磁極を放射線方向に配置して構成する
磁極体であって、前記磁極の外周嵌合部の少なくとも一
部と内周のブリッジ先端の一部を除いた側面に、樹脂を
成形した固定枠を介して各磁極を固着して前記磁極体と
し、該磁極体の開口部にコイル巻線を挿入してヨークに
圧入・固定してなる電動機の固定子において、積層構造
で構成した磁極を位置決め金型によって、磁極外周の嵌
合部及び磁極内周のブリッジ先端に当接して放射線方向
に固定し、そして前記磁極の側面からブリッジにかけて
空間を設け、該空間は隣合う磁極の空間と連通しこの空
間に樹脂を流し込んで硬化させて固定枠を形成し、該固
定枠によって固着した磁極により構成した磁極体の開口
部にコイル巻線部を挿入し、そしてヨークに圧入・固定
する製造方法の構成を有している。[Means for Solving the Problems] In order to achieve this object, a stator for an electric motor according to the present invention and a method for manufacturing the same are provided. , each magnetic pole is fixed to a side surface of the magnetic pole excluding at least a part of the outer peripheral fitting part and a part of the inner peripheral bridge tip through a fixing frame molded with resin to form the magnetic pole body; In the stator of an electric motor, in which the coil winding is inserted into the opening of the yoke and then press-fitted and fixed to the yoke, the magnetic pole composed of a laminated structure is positioned by a positioning mold, at the fitting part on the outer circumference of the magnetic pole and at the bridge tip on the inner circumference of the magnetic pole. A space is provided from the side surface of the magnetic pole to the bridge, and the space communicates with the space of the adjacent magnetic pole, and a resin is poured into this space and hardened to form a fixing frame. The manufacturing method is such that a coil winding portion is inserted into an opening of a magnetic pole body made up of magnetic poles fixed by a fixed frame, and then press-fitted and fixed to a yoke.
【0008】[0008]
【作用】この構成によって、磁極体を構成する各磁極を
ヨーク内周面に形成する嵌合溝に圧入・固定するだけで
、ヨークに固定した後でブリッジの一部削除は行わない
。また、各磁極を別々に前記嵌合溝に圧入するのでは作
業性が悪く、圧入・固定位置が一定しないために回転子
挿入穴寸法精度が低下することになる。しかし、本発明
ではヨークに圧入・固定する前に各磁極を樹脂でもって
位置決め・固定することができる。[Operation] With this structure, each magnetic pole constituting the magnetic pole body is simply press-fitted and fixed into the fitting groove formed on the inner circumferential surface of the yoke, and a portion of the bridge is not removed after being fixed to the yoke. In addition, press-fitting each magnetic pole into the fitting groove separately results in poor workability, and the dimensional accuracy of the rotor insertion hole decreases because the press-fitting and fixing positions are not constant. However, in the present invention, each magnetic pole can be positioned and fixed with resin before being press-fitted and fixed to the yoke.
【0009】積層構造からなる複数磁極は金型により位
置決めされた状態で該金型と磁極の間に残した空間へ樹
脂を流し込み、樹脂が硬化するならば各磁極は所定位置
にて一体化される。その後は、外周開口部に所定のコイ
ル巻線を挿入し、ヨークに圧入・固定する。前記磁極を
位置決めする樹脂は一種の絶縁体であって、外周開口部
に別の絶縁材を入れる必要は無くなる。[0009] With the plurality of magnetic poles having a laminated structure positioned by a mold, resin is poured into the space left between the mold and the magnetic poles, and when the resin hardens, each magnetic pole is integrated at a predetermined position. Ru. After that, a predetermined coil winding is inserted into the outer peripheral opening, and press-fitted and fixed to the yoke. The resin that positions the magnetic poles is a type of insulator, and there is no need to insert another insulating material into the outer peripheral opening.
【0010】0010
【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【0011】図1において、1は磁極体、2は磁極、3
はティース、4は側面、5は固定枠、14は開口部、1
5はヨーク、16は嵌合溝、17は回転子挿入穴である
。In FIG. 1, 1 is a magnetic pole body, 2 is a magnetic pole, and 3 is a magnetic pole body.
are teeth, 4 is a side surface, 5 is a fixed frame, 14 is an opening, 1
5 is a yoke, 16 is a fitting groove, and 17 is a rotor insertion hole.
【0012】以上のように構成された電動機の固定子、
及びその製造方法について、図2・図3を用いて詳細に
説明する。まず、図2において、磁極体1には複数の磁
極2が放射線方向に等間隔で配置されている。これら各
磁極2は同一形状を呈す複数片のティース3が積層され
て構成し、所定の位置に配置されるために磁極2の側面
4には固定枠5が嵌着している。固定枠5は樹脂を成形
した枠体であって、複数の磁極2は前記固定枠5を介し
て放射線方向に等間隔でもって位置決め・固定され、磁
極体1となる。[0012] A stator of an electric motor configured as above,
and its manufacturing method will be explained in detail using FIGS. 2 and 3. First, in FIG. 2, a plurality of magnetic poles 2 are arranged in a magnetic pole body 1 at equal intervals in the radial direction. Each of these magnetic poles 2 is constructed by laminating a plurality of teeth 3 having the same shape, and a fixed frame 5 is fitted onto the side surface 4 of the magnetic pole 2 in order to be arranged at a predetermined position. The fixed frame 5 is a frame body made of resin, and the plurality of magnetic poles 2 are positioned and fixed at equal intervals in the radial direction via the fixed frame 5, forming the magnetic pole bodies 1.
【0013】ところで、前記固定枠5を隣合う磁極2間
に挿入したのでは、これら各磁極2が高精度にて位置決
めされないために、本発明では磁極2を金型によって正
確に位置決めし、該金型と磁極2との間に残した空間(
隙間)に樹脂を流し込み、硬化させる。By the way, if the fixed frame 5 is inserted between the adjacent magnetic poles 2, each of these magnetic poles 2 cannot be positioned with high precision. Therefore, in the present invention, the magnetic poles 2 are accurately positioned using a mold, and the magnetic poles 2 are positioned precisely. The space left between the mold and magnetic pole 2 (
Pour the resin into the gap) and let it harden.
【0014】ここで用いる前記位置決め金型の形態は特
別限定しないが、回転子挿入穴となる磁極内側と、ヨー
ク内周に圧入される磁極外側が、それぞれ位置決めされ
得るような金型が用いられ、該金型による位置決めと同
時に樹脂を流し込んで固着される。勿論、精度がいらな
い場合の位置決めは、磁極内側・外側のどちらか一方で
も良い。[0014] The form of the positioning mold used here is not particularly limited, but a mold is used that can position the inside of the magnetic pole, which becomes the rotor insertion hole, and the outside of the magnetic pole, which is press-fitted into the inner periphery of the yoke. At the same time as positioning using the mold, resin is poured and fixed. Of course, when precision is not required, positioning may be performed on either the inside or outside of the magnetic pole.
【0015】図3は前記位置決め金型の具体例であり、
磁極2が内型6と外型7によって位置決めされる訳で、
内型6の外周には磁極2の数に相当する突片8が設けら
れていて、両突片8の間に磁極2のブリッジ9が嵌合す
る。前記ブリッジ9の先端にはテーパ10が形成されて
いて、前記突片8の傾斜側面11が該テーパ10に当接
して磁極2の内周を正確に位置決めする。一方、外型7
はヨークに圧入される磁極2外周の嵌合部12を拘束し
て位置決めし、複数個の割型で構成した外型7を内型6
の方向へ押圧するならば、これら各磁極2は内・外型6
・7間に拘束され放射線方向を向いて配置される。FIG. 3 shows a specific example of the positioning mold,
The magnetic pole 2 is positioned by the inner mold 6 and the outer mold 7,
Projections 8 corresponding to the number of magnetic poles 2 are provided on the outer periphery of the inner mold 6, and the bridges 9 of the magnetic poles 2 fit between both projections 8. A taper 10 is formed at the tip of the bridge 9, and the inclined side surface 11 of the protruding piece 8 abuts against the taper 10 to accurately position the inner periphery of the magnetic pole 2. On the other hand, outer mold 7
The fitting part 12 on the outer periphery of the magnetic pole 2 press-fitted into the yoke is restrained and positioned, and the outer mold 7 composed of a plurality of split molds is inserted into the inner mold 6.
If the magnetic poles 2 are pressed in the direction of the inner and outer molds 6
・It is restrained between 7 and placed facing the radial direction.
【0016】又同図に示すごとく、外型7は各磁極2の
開口部へ挿入してその嵌合部12を位置決めしているが
、磁極2の側面4との間には僅かな空間13を形成して
いて、該空間13は隣合う磁極2の側面4に形成した空
間13と連通している。そして、この空間13に樹脂を
流し込み硬化させるならば前記図2に示したような固定
枠5が形成されて、各磁極2は位置ズレすることなく固
着される。As shown in the figure, the outer mold 7 is inserted into the opening of each magnetic pole 2 to position its fitting portion 12, but there is a small space 13 between the outer mold 7 and the side surface 4 of the magnetic pole 2. The space 13 communicates with the space 13 formed on the side surface 4 of the adjacent magnetic pole 2. If resin is poured into this space 13 and hardened, a fixed frame 5 as shown in FIG. 2 is formed, and each magnetic pole 2 is fixed without shifting.
【0017】ところで、このように構成した磁極体1の
開口部14には所定のコイル巻線群が挿入されて後ヨー
クに圧入・固定されて固定子が完成する。By the way, a predetermined coil winding group is inserted into the opening 14 of the magnetic pole body 1 constructed as described above, and is press-fitted and fixed to the rear yoke to complete the stator.
【0018】図1はこの固定子を表しており、各磁極2
の嵌合部12はヨーク15の内周面に形成した嵌合溝1
6に圧入・固定されて一体化し、磁極体1の中心部には
回転子挿入穴17が設けられる。FIG. 1 shows this stator, with each magnetic pole 2
The fitting portion 12 is a fitting groove 1 formed on the inner peripheral surface of the yoke 15.
The rotor insertion hole 17 is provided in the center of the magnetic pole body 1 by press-fitting and fixing it into one piece.
【0019】以上のように、本発明の固定子は、積層構
造を成す磁極を固定枠を介して固着して磁極体を構成し
、該磁極体は各磁極を位置決め金型にて固定した状態で
樹脂を流し込んで製造するので、精度の良好な電動機の
固定子を容易に得ることができる。As described above, in the stator of the present invention, magnetic poles having a laminated structure are fixed through a fixing frame to constitute a magnetic pole body, and the magnetic pole body has a state in which each magnetic pole is fixed by a positioning mold. Since it is manufactured by pouring resin in the process, it is possible to easily obtain a highly accurate motor stator.
【0020】[0020]
【発明の効果】以上のように本発明は、それぞれ分解し
たティースの積層構造で構成した磁極を位置決め金型で
所定位置に固定し、その状態で樹脂を流し込んで固着し
た磁極体をヨークに圧入して製造するもので、その生産
性は非常に高くなる。すなわち、従来のようなブリッジ
部の削除工程や、磁極の仮固定作業はなくなる。又、位
置決め精度は極めて高く、高品質の固定子が得られる。
そして、この磁極は固定枠にて固着し、磁極体として一
個の独立部品となるため取扱いが便利で、又、ヨークへ
の圧入作業も省力化される。さらに、各磁極を固着する
固定枠は絶縁体としても機能するため、コイル巻線群を
開口部に挿入するに際し、特別に絶縁を施す必要性が無
くなる等のすぐれた電動機の固定子およびその製造方法
を実現できる。[Effects of the Invention] As described above, in the present invention, a magnetic pole composed of a laminated structure of disassembled teeth is fixed in a predetermined position with a positioning mold, resin is poured in this state, and the fixed magnetic pole body is press-fitted into a yoke. The productivity is extremely high. In other words, there is no need for the conventional process of removing the bridge portion or temporarily fixing the magnetic poles. Furthermore, the positioning accuracy is extremely high and a high quality stator can be obtained. This magnetic pole is fixed by a fixed frame and becomes a single independent component as a magnetic pole body, which is convenient to handle and also saves labor in press-fitting into the yoke. Furthermore, since the fixed frame that fixes each magnetic pole also functions as an insulator, there is no need to provide special insulation when inserting the coil winding group into the opening. method can be realized.
【図1】本発明の一実施例の固定子の断面図FIG. 1 is a sectional view of a stator according to an embodiment of the present invention.
【図2】本
発明の一実施例の磁極体の断面図[Fig. 2] A cross-sectional view of a magnetic pole body according to an embodiment of the present invention.
【図3】本発明の磁極
を位置決め金型により固定した場合の部分拡大図[Figure 3] Partially enlarged view of the magnetic pole of the present invention fixed with a positioning mold
1 磁極体 2 磁極 3 ティース 4 側面 5 固定枠 6 内型 7 外型 8 突片 9 ブリッジ 10 テーパ 11 傾斜側面 12 嵌合部 13 空間 14 開口部 15 ヨーク 16 嵌合溝 1 Magnetic pole body 2 Magnetic pole 3 Teeth 4 Side 5 Fixed frame 6 Inner mold 7 Outer mold 8 Projection piece 9 Bridge 10 Taper 11 Slanted side 12 Fitting part 13 Space 14 Opening 15 York 16 Fitting groove
Claims (2)
配置して構成する磁極体で、前記磁極の外周嵌合部の少
なくとも一部と内周のブリッジ先端の一部を除いた側面
に、樹脂を成形した固定枠を介して各磁極を固着して前
記磁極体とし、該磁極体の開口部にコイル巻線を挿入し
てヨークに圧入・固定したことを特徴とする電動機の固
定子。1. A magnetic pole body comprising a plurality of magnetic poles having a laminated structure arranged in a radial direction, the side surface of the magnetic poles excluding at least a part of the outer peripheral fitting part and a part of the inner peripheral bridge tip, A stator for an electric motor, characterized in that each magnetic pole is fixed to form the magnetic pole body through a fixed frame molded with resin, and a coil winding is inserted into an opening of the magnetic pole body and press-fitted and fixed to a yoke.
よって、磁極外周の嵌合部及び磁極内周のブリッジ先端
に当接して放射線方向に固定し、そして前記磁極の側面
からブリッジにかけて空間を設け、該空間は隣合う磁極
の空間と連通し、この空間に樹脂を流し込んで硬化させ
て固定枠を形成し、該固定枠によって固着した磁極によ
り構成した磁極体の開口部にコイル巻線部を挿入し、そ
してヨークに圧入・固定することを特徴とする電動機の
固定子製造方法。2. A magnetic pole having a laminated structure is fixed in the radial direction by abutting against a fitting part on the outer periphery of the magnetic pole and a bridge tip on the inner periphery of the magnetic pole using a positioning mold, and a space is formed from the side surface of the magnetic pole to the bridge. A fixed frame is formed by pouring resin into this space and hardening the space, and the coil winding portion is inserted into the opening of the magnetic pole body made up of the magnetic poles fixed by the fixed frame. A method of manufacturing a stator for an electric motor, characterized by inserting the stator into the yoke, and press-fitting and fixing the stator into the yoke.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2406510A JP3061868B2 (en) | 1990-12-26 | 1990-12-26 | Motor stator manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2406510A JP3061868B2 (en) | 1990-12-26 | 1990-12-26 | Motor stator manufacturing method |
Publications (2)
Publication Number | Publication Date |
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JPH04222442A true JPH04222442A (en) | 1992-08-12 |
JP3061868B2 JP3061868B2 (en) | 2000-07-10 |
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JP2406510A Expired - Fee Related JP3061868B2 (en) | 1990-12-26 | 1990-12-26 | Motor stator manufacturing method |
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JP (1) | JP3061868B2 (en) |
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1990
- 1990-12-26 JP JP2406510A patent/JP3061868B2/en not_active Expired - Fee Related
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JP3061868B2 (en) | 2000-07-10 |
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