JPH0135594Y2 - - Google Patents
Info
- Publication number
- JPH0135594Y2 JPH0135594Y2 JP12796580U JP12796580U JPH0135594Y2 JP H0135594 Y2 JPH0135594 Y2 JP H0135594Y2 JP 12796580 U JP12796580 U JP 12796580U JP 12796580 U JP12796580 U JP 12796580U JP H0135594 Y2 JPH0135594 Y2 JP H0135594Y2
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- core assembly
- teeth
- rotor
- circumferential surface
- 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
Links
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Description
【考案の詳細な説明】
本考案はステータコア片のポール先端に多数の
テイースを有するステツピングモータ、シンクロ
ナスモータに係り、ステータコア組立の内周面と
ブラケツトの軸受ホルダー部の外周面とを嵌合さ
せ、ステータコア組立とロータ間に微少空隙を得
る電動機において、ステータコア組立とロータ間
の円周方向の空隙をより高精度に均一にすること
を目的とするものである。[Detailed description of the invention] The invention relates to a stepping motor or a synchronous motor that has a large number of teeth at the tip of the pole of a stator core piece, and the inner circumferential surface of the stator core assembly and the outer circumferential surface of the bearing holder portion of the bracket are fitted together. The purpose of this invention is to uniformize the circumferential gap between the stator core assembly and the rotor with higher accuracy in an electric motor that obtains a minute gap between the stator core assembly and the rotor.
第１図は一般的なステツピングモータの構成を
示すもので、ステータコア組立１とロータ２の空
隙３は、ステータコア組立１の内周面と、ロータ
シヤフト４を保持するための軸受５，軸受５と同
心に加工された外周面を持つ軸受ホルダー部６を
有するブラケツト７，７′の軸受ホルダ部外周面
を挿入し、ロータシヤフト４を介して前記空隙３
を均一にするものである。 FIG. 1 shows the configuration of a general stepping motor, in which a gap 3 between a stator core assembly 1 and a rotor 2 is formed between the inner peripheral surface of the stator core assembly 1, a bearing 5 for holding a rotor shaft 4, and a bearing 5 for holding a rotor shaft 4. The outer peripheral surface of the bearing holder part of the bracket 7, 7' having the outer peripheral surface machined concentrically with the bearing holder part 6 is inserted into the space 3 through the rotor shaft 4.
This is to make it uniform.
第２図は従来のステータコア組立を示すもの
で、複数のポール８とポール８の先端に複数のテ
イース９を有するステータコア片１０を多数積層
したものである。かかる構造は、テイース９を有
するステータコア組立の内周面に前記ブラケツト
７，７′の軸受ホルダー部６の外周面を挿入する
時、軸受ホルダー部６の材料が前記テイース９に
より削り取られ、この削り取られた切片が微少空
隙３に入り、ロータ２の回転が不能になる欠点が
あつた。なお、前記空隙３は0.05mm〜0.1mmの微
小空隙に作られており、前記空隙３を全周にわた
り均一にすることは困難であつた。 FIG. 2 shows a conventional stator core assembly, in which a large number of stator core pieces 10 having a plurality of poles 8 and a plurality of teeth 9 at the tips of the poles 8 are laminated. In this structure, when the outer circumferential surface of the bearing holder portion 6 of the brackets 7, 7' is inserted into the inner circumferential surface of the stator core assembly having the teeth 9, the material of the bearing holder portion 6 is scraped off by the teeth 9, and this scraped material is removed by the teeth 9. There was a drawback in that the cut pieces entered the minute gap 3, making it impossible for the rotor 2 to rotate. Incidentally, the void 3 is made to be a minute void of 0.05 mm to 0.1 mm, and it is difficult to make the void 3 uniform over the entire circumference.
第３図は本考案のステータコア組立を示すもの
で、従来のテイース９を有するステータコア片１
０を多数枚積層したステータコア組立の両端にテ
イース９のないステータコア片１１を設けたもの
である。 FIG. 3 shows the stator core assembly of the present invention, in which a stator core piece 1 having conventional teeth 9 is shown.
In this embodiment, stator core pieces 11 without teeth 9 are provided at both ends of a stator core assembly made of a large number of laminated 0 pieces.
本考案によればステータコア組立の内周面にブ
ラケツトの軸受ホルダー部の外周面を挿入する
際、従来のようにステータコア片のテイースによ
りブラケツト材料が削り取られることがなく、空
隙を全周にわたりより高精度に均一にすることが
できる。また切片の発生がなく、ロータの回転が
不能になる欠点をなくすことができる。 According to the present invention, when inserting the outer circumferential surface of the bearing holder portion of the bracket into the inner circumferential surface of the stator core assembly, the bracket material is not scraped off by the teeth of the stator core pieces as in the conventional case, and the gap is made higher over the entire circumference. Accuracy can be made uniform. Further, there is no generation of chips, and the disadvantage of the rotor being unable to rotate can be eliminated.
以上のように本考案の構造によれば、不良の低
減、高精度モータの製作が可能となり、性能面、
品質面においてその効果は大なるものである。 As described above, according to the structure of the present invention, it is possible to reduce defects, manufacture high-precision motors, and improve performance.
The effect is significant in terms of quality.
第１図はステツピングモータの一般的構成を示
す半截断面図、第２図は従来のステータコア組立
を示す一部切欠き斜視図、第３図は本考案の実施
例にかかるステータコア組立を示す一部切欠き斜
視図である。
１……ステータコア組立、２……ロータ、３…
…空隙、４……ロータシヤフト、５……軸受、６
……軸受ホルダー部、７，７′……ブラケツト、
８……ポール、９……テイース、１０，１１……
ステータコア片。
FIG. 1 is a half-cutaway sectional view showing the general configuration of a stepping motor, FIG. 2 is a partially cutaway perspective view showing a conventional stator core assembly, and FIG. 3 is a partially cutaway perspective view showing a stator core assembly according to an embodiment of the present invention. It is a partial notch perspective view. 1... Stator core assembly, 2... Rotor, 3...
...Gap, 4...Rotor shaft, 5...Bearing, 6
...Bearing holder part, 7, 7'...Bracket,
8... Paul, 9... Theis, 10, 11...
Stator core piece.
Claims (1)
複数のテイースを有するステータコア片を多数枚
積層したステータコア組立と、ロータシヤフトを
支持する軸受が装備された軸受ホルダー部を有す
る一対のブラケツトとを備え、前記ブラケツトの
軸受ホルダー部の外周面をステータコア組立の両
端内周面とそれぞれ嵌合させ、ステータコア組立
とロータ間に微少空隙を形成してなる電動機にお
いて、前記ステータコア組立の両端部にポール先
端にテイースのないステータコア片を積層してな
る電動機。 The stator core assembly has a plurality of poles on the inner surface and a plurality of stator core pieces having a plurality of teeth at the tips of the poles, and a pair of brackets each having a bearing holder section equipped with a bearing that supports the rotor shaft. In the electric motor, the outer circumferential surface of the bearing holder portion of the bracket is fitted with the inner circumferential surface of both ends of the stator core assembly, respectively, and a minute gap is formed between the stator core assembly and the rotor. An electric motor made of laminated stator core pieces without teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12796580U JPH0135594Y2 (en) | 1980-09-09 | 1980-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12796580U JPH0135594Y2 (en) | 1980-09-09 | 1980-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5751086U JPS5751086U (en) | 1982-03-24 |
| JPH0135594Y2 true JPH0135594Y2 (en) | 1989-10-30 |
Family
ID=29488359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12796580U Expired JPH0135594Y2 (en) | 1980-09-09 | 1980-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0135594Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4684677B2 (en) * | 2005-02-18 | 2011-05-18 | 三菱電機株式会社 | Permanent magnet type motor, permanent magnet type linear motor and method for manufacturing the same |
| US9350204B2 (en) | 2009-11-24 | 2016-05-24 | Mitsubishi Electric Corporation | Permanent magnet rotating electrical machine and electric power steering apparatus having a stator core with supplemental grooves |
| JP5073805B2 (en) * | 2010-11-22 | 2012-11-14 | 三菱電機株式会社 | Permanent magnet type motor and permanent magnet type linear motor |
-
1980
- 1980-09-09 JP JP12796580U patent/JPH0135594Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5751086U (en) | 1982-03-24 |
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