JP2684674B2 - Insulator of iron core for electric motor - Google Patents
Insulator of iron core for electric motorInfo
- Publication number
- JP2684674B2 JP2684674B2 JP63109333A JP10933388A JP2684674B2 JP 2684674 B2 JP2684674 B2 JP 2684674B2 JP 63109333 A JP63109333 A JP 63109333A JP 10933388 A JP10933388 A JP 10933388A JP 2684674 B2 JP2684674 B2 JP 2684674B2
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- electric motor
- iron core
- slot
- rotor core
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、主に家庭用電化機器の電気掃除機や、工業
用電気掃除機、ジューサミキサ等に組み込まれる電動機
用鉄心のインシュレータに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to an electric vacuum cleaner for household electric appliances, an electric vacuum cleaner for industrial use, an insulator for an electric motor core incorporated in a juice mixer, and the like.
従来の技術 従来のインシュレータとしては、紙類にワニス処理を
施したものが使用されていた。2. Description of the Related Art As conventional insulators, varnished papers have been used.
以下、第８図〜第11図を参照しながら上述した従来の
インシュレータの一例について説明する。Hereinafter, an example of the conventional insulator described above will be described with reference to FIGS. 8 to 11.
第９図において、１は電動機の回転子軸である。２は
電動機の回転子鉄心で、軸１に圧入されている。３はコ
イルで鉄心２のスロット内に巻線されている。４は整流
子でコイル３の端部が結線されている。５は鉄心２とコ
イル３とのインシュレータで、コイル３が巻線される前
に装着される（以下第１のインシュレータと称す）。６
は軸１とコイル３とのインシュレータでコイル３が巻線
される前に装着される。（以下第２のインシュレータと
称す）。第８図において７は鉄心２のスロット部とコイ
ル３とのインシュレータである（以下スロット絶縁と称
す）。まず、軸１に鉄心２を圧入し第２のインシュレー
タ６と第１のインシュレータ５を装着する。そしてスロ
ット絶縁７の鉄心２のスロット部に挿入して整流子４を
軸１に圧入し、この状態で巻線機（図示せず）にセット
し、巻線を行いコイル３の巻線端部を整流子４に結線す
る。In FIG. 9, 1 is a rotor shaft of the electric motor. Reference numeral 2 denotes a rotor core of the electric motor, which is press-fitted into the shaft 1. A coil 3 is wound inside the slot of the iron core 2. Reference numeral 4 denotes a commutator to which the ends of the coil 3 are connected. Reference numeral 5 is an insulator of the iron core 2 and the coil 3, which is mounted before the coil 3 is wound (hereinafter referred to as a first insulator). 6
Is mounted by the insulator of the shaft 1 and the coil 3 before the coil 3 is wound. (Hereinafter referred to as the second insulator). In FIG. 8, 7 is an insulator between the slot portion of the iron core 2 and the coil 3 (hereinafter referred to as slot insulation). First, the iron core 2 is press-fitted into the shaft 1 and the second insulator 6 and the first insulator 5 are mounted. Then, the commutator 4 is press-fitted onto the shaft 1 by inserting it into the slot portion of the iron core 2 of the slot insulation 7, and in this state, it is set in a winding machine (not shown), and winding is performed to wind the winding end portion of the coil 3. To the commutator 4.
発明が解決しようとする課題 しかしながら上記のような構成では、第２のインシュ
レータ６と第１のインシュレータ５を装着しなければな
らず組立工数が多くなり、また、スロット絶縁７は、鉄
心２とコイル３との絶縁距離を確保するために第１のイ
ンシュレータ５の部分まで挿入しなければならなく第１
のインシュレータ５にスロット絶縁７が引掛ってインシ
ュレータ５が動くため再度装着しなければならなく、作
業工程が多くなるという欠点があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described configuration, the second insulator 6 and the first insulator 5 must be mounted, which increases the number of assembling steps, and the slot insulation 7 is provided with the iron core 2 and the coil. In order to ensure an insulation distance from the first insulator 5, the first insulator 5 must be inserted up to the first insulator 5.
Since the slot insulation 7 is caught by the insulator 5 and the insulator 5 moves, the insulator 5 has to be reattached, and there is a drawback that the number of working steps increases.
特に、第１のインシュレータ５と第２のインシュレー
タ６の材質は紙であり、その形状にする時（切断時）に
バリが発生するため巻線前にインシュレータ５の浮き、
スロット絶縁７の巻き込みの不良を少なくするために細
心の注意が必要であった。また、第１のインシュレータ
5,第２のインシュレータ６は平滑な表面であり、コイル
３との接触部分が多く、コイル３の温度上昇を高くする
という欠点を有していた。In particular, the material of the first insulator 5 and the second insulator 6 is paper, and burrs are generated during shaping (cutting), so that the insulator 5 floats before winding.
Careful attention was required in order to reduce defective winding of the slot insulation 7. Also, the first insulator
The second insulator 6 has a smooth surface, has many contact portions with the coil 3, and has a drawback of increasing the temperature rise of the coil 3.
本発明は上記課題に鑑み、絶縁構成の部品点数を減ら
して工数低減を図り、また巻線不良を低減し、かつ電動
機としての巻線による温度上昇を低く抑えることができ
る電動機用鉄心のインシュレータを提供するものであ
る。In view of the above problems, the present invention aims to reduce the number of parts of the insulation configuration to reduce the number of steps, reduce the winding defect, and suppress the temperature rise due to the winding as the electric motor. It is provided.
課題を解決するための手段 上記課題を解決するために本発明ので電動機用鉄心の
インシュレータは合成樹脂からなり、電動機の軸を貫通
させる筒部と、この筒部の端部に位置し、軸に固着する
回転子鉄心の端面に当接させる平板部とを有し、回転子
鉄心に巻いた巻線を通させる切りかきからなるスロット
部を平板部に設けるとともに、平板部の回転子鉄心側か
つスロット部の側部に面取り部を設けたものである。ま
た、平板部の反回転子鉄心端面側に凹凸部を設けたもの
である。Means for Solving the Problems In order to solve the above problems, the insulator of the iron core for an electric motor according to the present invention is made of a synthetic resin, and has a cylindrical portion that penetrates the shaft of the electric motor, and is located at the end of the cylindrical portion, and The flat plate portion has a flat plate portion that comes into contact with the end surface of the rotor core that is fixed, and the slot portion that is formed by a cut through which the winding wound around the rotor core is inserted is provided on the flat plate portion on the rotor core side and A chamfer is provided on the side of the slot. In addition, a concavo-convex portion is provided on the non-rotor core end surface side of the flat plate portion.
作用 本発明は上述した構成によって部品点数の削減と工数
の削減を図り、またインシュレータの鉄心端面側に面取
りすることによってスロット絶縁の巻き込み等の不良を
防ぎ、さらに凹凸部を設けることによりコイル接する部
分を極力小さくすることによって巻線の温度上昇も低く
抑えるこのである。Function The present invention reduces the number of parts and the number of processes by the above-described configuration, and chamfers the iron core end face side of the insulator to prevent defects such as winding of the slot insulation. This is to keep the temperature rise of the winding low by minimizing
実施例 以下本発明の一実施例の電動機用鉄心のインシュレー
タについて、図面を参照しながら説明する。Example An insulator of an iron core for an electric motor according to an example of the present invention will be described below with reference to the drawings.
第１図は本発明の第１の実施例を示すもので、電動機
の回転子の巻線後の状態を示すものである。第１図にお
いて、１は電動機の回転子の軸である。２は電動機の回
転子鉄心で軸１に圧入されている。３はコイルで鉄心２
のスロット部（図示せず）内に巻線されている。４は整
流子でコイル３の端部が結線されている。11は鉄心２と
コイル３及び軸１とコイル３とのインシュレータであ
る。FIG. 1 shows a first embodiment of the present invention and shows a state after winding of a rotor of an electric motor. In FIG. 1, 1 is a shaft of a rotor of an electric motor. A rotor core 2 of the electric motor is press-fitted into the shaft 1. 3 is a coil and 2 is an iron core
Is wound in the slot portion (not shown) of the. Reference numeral 4 denotes a commutator to which the ends of the coil 3 are connected. Reference numeral 11 is an insulator of the iron core 2, the coil 3, and the shaft 1 and the coil 3.
第２図は本発明の第１の実施例におけるインシュレー
タ11の全体形状を示すもので、このインシュレータ11は
合成樹脂で形成されている。第２図において、12は回転
子鉄心２の端面と当接する平板部で、この平板部12には
回転子鉄心２のスロット部と同形状のスロット部12aを
形成しており、前記スロット部12aの側部かつ回転子鉄
心２側に面取り部13を形成している。FIG. 2 shows the overall shape of the insulator 11 according to the first embodiment of the present invention. The insulator 11 is made of synthetic resin. In FIG. 2, reference numeral 12 denotes a flat plate portion which comes into contact with the end surface of the rotor core 2, and the flat plate portion 12 is formed with a slot portion 12a having the same shape as the slot portion of the rotor core 2. A chamfered portion 13 is formed on the side of the rotor core 2 side.
まず、軸１に回転子鉄心２を圧入し、本発明のインシ
ュレータ11を装着し、スロット絶縁７を回転子鉄心２の
スロット部に挿入し、整流子４を軸１に圧入して巻線可
能な状態とする。この状態で巻線機（図示せず）にセッ
トし、巻線を行いコイル３の端部を整流子４に結線す
る。以上のように本実施例は、回転子鉄心２とコイル３
との絶縁と、軸１とコイル３との絶縁を１個のインシュ
レータで同時にすることができ、また、平板部12の回転
子鉄心２側かつスロット部12a側部に面取り部13を設け
ることにより、スロット絶縁７を挿入する際の引掛り
や、インシュレータの浮き上りをなくすことができる。First, the rotor core 2 is press-fitted onto the shaft 1, the insulator 11 of the present invention is mounted, the slot insulation 7 is inserted into the slot portion of the rotor core 2, and the commutator 4 is press-fitted onto the shaft 1 so that winding is possible. Be in a state In this state, the coil is set in a winding machine (not shown), winding is performed, and the end of the coil 3 is connected to the commutator 4. As described above, in this embodiment, the rotor core 2 and the coil 3 are
The insulation between the shaft 1 and the coil 3 can be performed at the same time with one insulator, and by providing the chamfered portion 13 on the rotor core 2 side of the flat plate portion 12 and the slot portion 12a side portion. Therefore, it is possible to eliminate the catch when inserting the slot insulation 7 and the rising of the insulator.
以下本発明の第２の実施例につて、図面を参照しなが
ら説明する。A second embodiment of the present invention will be described below with reference to the drawings.
第３図〜第７図は本発明の第２の実施例における合成
樹脂性のインシュレータ11aを示すものである。3 to 7 show a synthetic resin insulator 11a according to the second embodiment of the present invention.
第３図において、22は回転子鉄心２の端面と当接する
平板部で、この平板部22には回転子鉄心２のスロット部
と同形状に形成されたスロット部22aを形成しており、
前記スロット部22aの側部かつ回転子鉄心２側に面取り
部23を形成している。以上は第１図の構成と同様であ
る。第１図の構成と異なるのは、インシュレータ11aの
平板部22の反回転子鉄心端面側に凹部24aと凸部24bを設
け、インシュレータ11aの筒部25の外径側にも凹部24a,
凸部24bをコイルとの接触面積が小さくなるように設け
た点である。上記のような構造のインシュレータ11aを
装着することにより、コイルとの接触は凸部のみとな
り、接触面積を大幅に少なくでき、巻線の温度上昇を低
くおさえることができる。In FIG. 3, reference numeral 22 denotes a flat plate portion that comes into contact with the end surface of the rotor core 2, and the flat plate portion 22 has a slot portion 22a formed in the same shape as the slot portion of the rotor core 2.
A chamfer 23 is formed on the side of the slot 22a and on the rotor core 2 side. The above is the same as the configuration of FIG. The difference from the configuration of FIG. 1 is that a recess 24a and a projection 24b are provided on the side of the flat plate portion 22 of the insulator 11a opposite to the rotor core end surface, and a recess 24a is also provided on the outer diameter side of the tubular portion 25 of the insulator 11a.
The point is that the convex portion 24b is provided so that the contact area with the coil is small. By mounting the insulator 11a having the above-described structure, the contact with the coil is made only by the convex portion, the contact area can be significantly reduced, and the temperature rise of the winding can be suppressed low.
入力1000Wクラスの電動機を使用したときの実験によ
れば、約5deg低くすることができた。According to an experiment using an electric motor of input 1000 W class, it could be reduced by about 5 deg.
なお、第1,第２の実施例において面取り部13,23を直
線的な面取りとしたが、面取り部13,23は丸みをもたせ
たＲ形状としてもよい。Although the chamfered portions 13 and 23 are linear chamfers in the first and second embodiments, the chamfered portions 13 and 23 may have a rounded R shape.
また、第２の実施例では反回転子鉄心端面側の凹部24
a,凸部24b、筒部25の外径側の凹部24a,凸部24bは連続的
な形状としたが、反回転子鉄心端面側の凹部24a,凸部24
b、筒部25の外径側の凹部24a,凸部24bは断面的に設けて
もよい。Further, in the second embodiment, the recess 24 on the end face side of the non-rotor core is formed.
Although the a, the convex portion 24b, and the concave portion 24a and the convex portion 24b on the outer diameter side of the tubular portion 25 have a continuous shape, the concave portion 24a and the convex portion 24 on the end face side of the non-rotor core
b, the concave portion 24a and the convex portion 24b on the outer diameter side of the tubular portion 25 may be provided in a cross section.
発明の効果 以上のように本発明は合成樹脂からなるインシュレー
タを用いることにより、部品点数の削減と、工数の削減
を図り、また回転子鉄心端面側に面取りを設けることに
より、インシュレータ自体のウキ、スロット絶縁の巻き
込み等の不良を防ぐことができる。これは全自動巻線を
可能にするものである また、インシュレータに凹部，凸部を設け、コイルと
の接触部分を少なくすることにより電動機の温度上昇を
低くすることができる。As described above, the present invention uses an insulator made of a synthetic resin to reduce the number of parts and the number of steps, and by providing a chamfer on the rotor core end face side, the insulator of the insulator itself, It is possible to prevent defects such as entrapment of slot insulation. This enables fully automatic winding. Further, the temperature rise of the electric motor can be reduced by providing the insulator with a concave portion and a convex portion to reduce the contact portion with the coil.
これは温度が低ければより安全性をもつことになり、
信頼性の高い電動機とすることができる。一方、温度上
昇を同じ値として見るならば、より大出力で、よりコス
トの安い電動機を提供することができる。This is more safe at lower temperatures,
It can be a highly reliable electric motor. On the other hand, if the temperature rise is viewed as the same value, it is possible to provide an electric motor with higher output and lower cost.
第１図は本発明の第１の実施例における電動機用鉄心の
インシュレータを適用した電動機の回転子の半断面図、
第２図は本発明の第１の実施例におけるインシュレータ
の斜視図、第３図は本発明の第２の実施例におけるイン
シュレータの斜視図、第４図は第３図をＡ方向から見た
平面図、第５図は第４図のＢ−Ｂ部分の断面図、第６図
は第４図のＣ−Ｃ部分の断面図、第７図は第３図のＤ方
向で切断した断面図、第８図はスロット絶縁の斜視図、
第９図は従来のインシュレータを用いた電動機の回転子
を示した半断面図、第10図は従来の第１のインシュレー
タの斜視図、第11図は従来の第２のインシュレータの斜
視図である。 11,11a……インシュレータ、12,22……平板部、12a,22a
……スロット部、13,23……面取り部、24a……凹部、24
b……凸部、25……筒部。FIG. 1 is a half sectional view of a rotor of an electric motor to which an insulator of an electric motor iron core according to a first embodiment of the present invention is applied,
2 is a perspective view of the insulator in the first embodiment of the present invention, FIG. 3 is a perspective view of the insulator in the second embodiment of the present invention, and FIG. 4 is a plan view of FIG. 3 seen from the direction A. Fig. 5 is a sectional view taken along the line BB in Fig. 4, Fig. 6 is a sectional view taken along the line CC in Fig. 4, and Fig. 7 is a sectional view taken in the direction D in Fig. 3. FIG. 8 is a perspective view of slot insulation,
FIG. 9 is a half sectional view showing a rotor of an electric motor using a conventional insulator, FIG. 10 is a perspective view of a conventional first insulator, and FIG. 11 is a perspective view of a conventional second insulator. . 11,11a …… Insulator, 12,22 …… Plate part, 12a, 22a
...... Slot, 13,23 ...... Chamfer, 24a ...... Recess, 24
b …… Convex part, 25 …… Cylinder part.
Claims (2)
る筒部と、前記筒部の端部に位置し、前記軸に固着する
回転子鉄心の端面に当接させる平板部とを有し、前記回
転子鉄心に巻いた巻線を通させる切りかきからなるスロ
ット部を、前記平板部に設けるとともに、前記平板部の
回転子鉄心側かつスロット部の側部に面取り部を設けた
電動機用鉄心のインシュレータ。1. A cylindrical portion which is made of synthetic resin and which penetrates a shaft of an electric motor, and a flat plate portion which is located at an end portion of the cylindrical portion and which abuts on an end surface of a rotor core fixed to the shaft. A motor provided with a slot portion formed by a cut through which the winding wound around the rotor core is inserted, on the flat plate portion, and a chamfered portion on the rotor core side of the flat plate portion and on the side portion of the slot portion. Iron core insulator.
えた特許請求の範囲第１項記載の電動機用鉄心のインシ
ュレータ。2. The insulator of an iron core for an electric motor according to claim 1, wherein the end face of the anti-rotor iron core of the flat plate portion is provided with an uneven portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63109333A JP2684674B2 (en) | 1988-05-02 | 1988-05-02 | Insulator of iron core for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63109333A JP2684674B2 (en) | 1988-05-02 | 1988-05-02 | Insulator of iron core for electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01283037A JPH01283037A (en) | 1989-11-14 |
| JP2684674B2 true JP2684674B2 (en) | 1997-12-03 |
Family
ID=14507566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63109333A Expired - Lifetime JP2684674B2 (en) | 1988-05-02 | 1988-05-02 | Insulator of iron core for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2684674B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044734A (en) * | 1990-04-18 | 1992-01-09 | Fuji Electric Co Ltd | Core groove insulating unit for electric rotating machine |
| GB9312312D0 (en) * | 1993-06-15 | 1993-07-28 | Johnson Electric Sa | Armature end protector for a wound rotor |
| US5578878A (en) * | 1994-08-30 | 1996-11-26 | United Technologies Motor Systems, Inc. | Counterbalanced electric motor |
| JP4412166B2 (en) * | 2004-12-15 | 2010-02-10 | 日立工機株式会社 | Electric motor and electric tool including the same |
| US8471429B2 (en) * | 2009-04-07 | 2013-06-25 | GM Global Technology Operations LLC | Isolator ring for an electric motor |
| CN108945242B (en) * | 2018-08-26 | 2020-12-29 | 深圳市领航致远科技有限公司 | Electrodynamic balance car's in-wheel motor and electrodynamic balance car |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441502U (en) * | 1977-08-30 | 1979-03-20 | ||
| JPS58648U (en) * | 1981-06-26 | 1983-01-05 | 株式会社三ツ葉電機製作所 | motor rotor |
| JPS58170334A (en) * | 1982-03-31 | 1983-10-06 | Hitachi Ltd | Slot insulator for rotary electric machine |
-
1988
- 1988-05-02 JP JP63109333A patent/JP2684674B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01283037A (en) | 1989-11-14 |
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