JPH0486079U - - Google Patents
Info
- Publication number
- JPH0486079U JPH0486079U JP12822490U JP12822490U JPH0486079U JP H0486079 U JPH0486079 U JP H0486079U JP 12822490 U JP12822490 U JP 12822490U JP 12822490 U JP12822490 U JP 12822490U JP H0486079 U JPH0486079 U JP H0486079U
- Authority
- JP
- Japan
- Prior art keywords
- pole
- force distribution
- magnetomotive force
- field
- small
- 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.)
- Pending
Links
- 230000004907 flux Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Dc Machiner (AREA)
Description
第１図は本考案の第１の実施例における小型直
流モータの界磁磁石のフイールド磁束による起磁
力分布を示す図、第２図は本考案の第２の実施例
を示す小型直流モータの構造を示す図、第３図は
従来の小型直流モータの起磁力分布を示す図、第
４図は小型直流モータの構造を示す図である。
１……界磁磁石、２……フレーム側軸受、３…
…フレーム、４……ブラケツト側メタル、５……
刷子、６……ブラケツト、７……整流子、８……
巻線、９……コア、１０……シヤフト、１１……
起磁力分布歪用マグネツト。
Fig. 1 is a diagram showing the magnetomotive force distribution due to the field magnetic flux of the field magnet of a small DC motor according to the first embodiment of the present invention, and Fig. 2 is a diagram showing the structure of the small DC motor according to the second embodiment of the invention. FIG. 3 is a diagram showing the magnetomotive force distribution of a conventional small DC motor, and FIG. 4 is a diagram showing the structure of the small DC motor. 1... Field magnet, 2... Frame side bearing, 3...
...Frame, 4...Bracket side metal, 5...
Brush, 6... Bracket, 7... Commutator, 8...
Winding, 9... Core, 10... Shaft, 11...
Magnet for magnetomotive force distribution distortion.
Claims (1)
極）着磁した界磁磁石と、中心にシヤフトを有す
ると共に前記界磁磁石に対向して周方向に等間隔
に配置された３個の変化磁極を有するアマチユア
組立と、シヤフトを支持する軸受を備え、前記界
磁磁石のフイールド磁束による起磁力分布を機械
的１８０°のバランスを不均等に着磁し、少なく
ともＮ極、Ｓ極の起磁力分布角度を１％以上不均
等に着磁された小型直流モータ。 (2) 前記界磁磁石のフイールド磁束による起磁
力分布を機械的に１８０°の対称位置に着磁され
て組立てられた小型直流モータにおいて、フレー
ム外周にマグネツト１極（Ｎ極、Ｓ極のいずれか
片方）を所定の位置に固着し、フイールド磁束に
よる起磁力分布のＮ極、Ｓ極のバランスを１％以
上不均等に着磁された小型直流モータ。[Scope of claim for utility model registration] (1) Two poles (N pole, S pole) in the circumferential direction on the inner diameter of the frame.
(Pole) An armature assembly including a magnetized field magnet, a shaft at the center, and three variable magnetic poles facing the field magnet and arranged at equal intervals in the circumferential direction, and a bearing that supports the shaft. The magnetomotive force distribution due to the field magnetic flux of the field magnet is mechanically polarized by 180° balance, and the magnetomotive force distribution angle of at least N pole and S pole is magnetized unevenly by 1% or more. Small DC motor. (2) In a small DC motor assembled by mechanically magnetizing the magnetomotive force distribution due to the field magnetic flux of the field magnet at 180° symmetrical positions, one magnet pole (either N pole or S pole) is attached to the outer periphery of the frame. A small DC motor in which the magnetomotive force distribution due to the field magnetic flux is unevenly magnetized by 1% or more of the balance between the north and south poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12822490U JPH0486079U (en) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12822490U JPH0486079U (en) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486079U true JPH0486079U (en) | 1992-07-27 |
Family
ID=31875693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12822490U Pending JPH0486079U (en) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486079U (en) |
-
1990
- 1990-11-29 JP JP12822490U patent/JPH0486079U/ja active Pending
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