JP2010098880A5 - - Google Patents
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- JP2010098880A5 JP2010098880A5 JP2008268638A JP2008268638A JP2010098880A5 JP 2010098880 A5 JP2010098880 A5 JP 2010098880A5 JP 2008268638 A JP2008268638 A JP 2008268638A JP 2008268638 A JP2008268638 A JP 2008268638A JP 2010098880 A5 JP2010098880 A5 JP 2010098880A5
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- teeth
- poles
- linear motor
- cylindrical linear
- magnetic
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Description
上記問題を解決するため、請求項１に記載の発明は、３相電機子巻線を巻装した複数のティースを円周方向に配置すると共に、前記ティースのギャップ面に軸方向等間隔に小歯を配置した固定子と、前記固定子と磁気的空隙を介して対向すると共に、軸方向等間隔に磁極を配置した可動子と、を備えた円筒形リニアモータにおいて、前記小歯の軸方向の厚さをｔ、軸方向ピッチをλとした場合、２／５＜ｔ／λ≦１／２とし、かつ、前記３相電機子巻線が作る磁界の極数である電機子極数をＰａ、前記ティース数をＮとした場合、隣接する前記ティースとの間の前記小歯の軸方向ずれδを、δ＝Ｐａ・λ／（２×Ｎ）としたことを特徴としている。
また、請求項２記載の発明は、請求項１記載の円筒形リニアモータにおいて、前記可動子の磁極の極ピッチをτ、前記磁極の極数である界磁極数をＰｍとした場合、λ／２−λ／（６×Ｐｍ）≦τ≦λ／２＋λ／（６×ｍ）したことを特徴としている。
また、請求項３記載の発明は、請求項１または２記載の円筒形リニアモータにおいて、前記可動子の磁極を可動子コアと永久磁石で構成すると共に、前記可動子コアと前記永久磁石を軸方向に交互に配置し、隣接する前記永久磁石の磁化方向を軸方向にして対極させたことを特徴としている。
また、請求項４記載の発明は、請求項１〜３までの何れか１項に記載の円筒形リニアモータにおいて、前記小歯の形状を階段状もしくは台形状にしたことを特徴としている。
In order to solve the above problem, the invention according to claim 1 is arranged such that a plurality of teeth around which a three-phase armature winding is wound are arranged in the circumferential direction, and the gap surfaces of the teeth are equally spaced in the axial direction. An axial direction of the small teeth in a cylindrical linear motor comprising: a stator having teeth arranged; and a mover having magnetic poles arranged at equal intervals in the axial direction while facing the stator via a magnetic gap. And the axial pitch is λ, 2/5 <t / λ ≦ 1/2, and the number of armature poles, which is the number of magnetic fields generated by the three-phase armature winding, is When Pa and the number of teeth are N, the small tooth axial displacement δ between the adjacent teeth is δ = Pa · λ / (2 × N).
In the cylindrical linear motor according to claim 1, when the pole pitch of the magnetic poles of the mover is τ and the number of field poles that is the number of poles of the magnetic poles is Pm, λ / 2−λ / (6 × Pm) ≦ τ ≦ λ / 2 + λ / (6 × m).
According to a third aspect of the present invention, in the cylindrical linear motor according to the first or second aspect, the magnetic pole of the mover is constituted by a mover core and a permanent magnet, and the mover core and the permanent magnet are pivoted. The electrodes are alternately arranged in the direction, and are opposite to each other with the magnetization direction of the adjacent permanent magnets as the axial direction.
According to a fourth aspect of the present invention, in the cylindrical linear motor according to any one of the first to third aspects, the shape of the small teeth is stepped or trapezoidal.
Claims (4)
前記固定子と磁気的空隙を介して対向すると共に、軸方向等間隔に磁極を配置した可動子と、
を備えた円筒形リニアモータにおいて、
前記小歯の軸方向の厚さをｔ、軸方向ピッチをλとした場合、
２／５＜ｔ／λ≦１／２
とし、かつ、前記３相電機子巻線が作る磁界の極数である電機子極数をＰａ、前記ティース数をＮとした場合、隣接する前記ティースとの間の前記小歯の軸方向ずれδを
δ＝Ｐａ・λ／（２×Ｎ）
としたことを特徴とする円筒形リニアモータ。 A plurality of teeth wound with three-phase armature windings are arranged in the circumferential direction, and a stator in which small teeth are arranged at equal intervals in the axial direction on the gap surface of the teeth,
A movable element facing the stator via a magnetic gap and having magnetic poles arranged at equal intervals in the axial direction,
In a cylindrical linear motor with
When the axial thickness of the small teeth is t and the axial pitch is λ,
2/5 <t / λ ≦ 1/2
And when the number of armature poles, which is the number of magnetic field poles formed by the three-phase armature winding, is Pa and the number of teeth is N, the small tooth axial displacement between adjacent teeth δ is δ = Pa · λ / (2 × N)
A cylindrical linear motor characterized by that.
λ／２−λ／（６×Ｐｍ）≦τ≦λ／２＋λ／（６×Ｐｍ）
としたことを特徴とする請求項１記載の円筒形リニアモータ。 When the pole pitch of the magnetic poles of the mover is τ, and the number of field poles that is the number of poles of the magnetic poles is Pm
λ / 2−λ / (6 × Pm) ≦ τ ≦ λ / 2 + λ / (6 × Pm)
The cylindrical linear motor according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008268638A JP5386925B2 (en) | 2008-10-17 | 2008-10-17 | Cylindrical linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008268638A JP5386925B2 (en) | 2008-10-17 | 2008-10-17 | Cylindrical linear motor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010098880A JP2010098880A (en) | 2010-04-30 |
| JP2010098880A5 true JP2010098880A5 (en) | 2012-02-16 |
| JP5386925B2 JP5386925B2 (en) | 2014-01-15 |
Family
ID=42260154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008268638A Expired - Fee Related JP5386925B2 (en) | 2008-10-17 | 2008-10-17 | Cylindrical linear motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5386925B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497081B (en) * | 2011-11-30 | 2013-07-24 | 哈尔滨工业大学 | Magnetic-field modulation-type cylinder-type transverse-flux linear motor |
| JP5809996B2 (en) * | 2012-02-10 | 2015-11-11 | 隆逸 小林 | Linear generator |
| TWI500241B (en) * | 2012-02-16 | 2015-09-11 | Hitachi Metals Ltd | Linear motor |
| WO2023195170A1 (en) * | 2022-04-08 | 2023-10-12 | 三菱電機株式会社 | Module-type linear motor |
| CN117895739A (en) * | 2023-12-29 | 2024-04-16 | 比亚迪股份有限公司 | Linear motor, suspension system and vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49116514A (en) * | 1973-03-12 | 1974-11-07 | ||
| JPH0739135A (en) * | 1993-07-20 | 1995-02-07 | Oriental Motor Co Ltd | Cylindrical linear pulse motor |
| JP3585130B2 (en) * | 1993-09-24 | 2004-11-04 | オリエンタルモーター株式会社 | Linear pulse motor |
| JPH08237933A (en) * | 1995-02-28 | 1996-09-13 | Oriental Motor Co Ltd | Linear motor |
| JPH1141905A (en) * | 1997-07-22 | 1999-02-12 | Oriental Motor Co Ltd | Linear pulse motor |
| JP2007244004A (en) * | 2006-02-08 | 2007-09-20 | Nippon Densan Corp | Motor and recording disc drive equipped with it |
-
2008
- 2008-10-17 JP JP2008268638A patent/JP5386925B2/en not_active Expired - Fee Related
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