JPH0318661U - - Google Patents
Info
- Publication number
- JPH0318661U JPH0318661U JP7879789U JP7879789U JPH0318661U JP H0318661 U JPH0318661 U JP H0318661U JP 7879789 U JP7879789 U JP 7879789U JP 7879789 U JP7879789 U JP 7879789U JP H0318661 U JPH0318661 U JP H0318661U
- Authority
- JP
- Japan
- Prior art keywords
- commutator
- pieces
- contact
- brush
- rotor shaft
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Description
第１図は本考案の小型モータに係る一実施例を
示す要部破断正面図、第２図は整流子とブラシを
示す側面図、第３図は第１図の整流子を示す図、
第４図は実施例のモータの回転数と駆動電流の波
形特性図、第５図ａ，ｂと第６図ａ，ｂは異なる
小型モータにおける回転数と駆動電流の波形特性
図であり、各図ａは正常時、各図ｂは使用経時後
を示す。
１……モータケース本体、３，５……軸受、７
……支持板、９……モータケース、１１……ロー
タ軸、１３……整流子台、１５……フランジ、１
７……駆動コイル、２３……駆動マグネツト、２
５……整流子、２７……第１の領域、２９……第
２の領域、３１，３３……ブラシ、３１ａ，３１
ｂ，３３ａ，３３ｂ……接触片。
FIG. 1 is a front view with a main part cut away showing an embodiment of the small motor of the present invention, FIG. 2 is a side view showing a commutator and brushes, and FIG. 3 is a view showing the commutator of FIG. 1.
FIG. 4 is a waveform characteristic diagram of the rotation speed and drive current of the motor of the example, and FIGS. Figure a shows the normal state, and each figure b shows the state after use. 1... Motor case body, 3, 5... Bearing, 7
... Support plate, 9 ... Motor case, 11 ... Rotor shaft, 13 ... Commutator stand, 15 ... Flange, 1
7... Drive coil, 23... Drive magnet, 2
5... Commutator, 27... First region, 29... Second region, 31, 33... Brush, 31a, 31
b, 33a, 33b... contact piece.
Claims (1)
在に軸支されたロータ軸と、このロータ軸に形成
された複数の整流子片を有する整流子と、前記モ
ータケースに支持され前記整流子片に当接するブ
ラシとを具備する小型モータにおいて、 前記各整流子片は、円周方向に粗面形成された
第１の領域とこの第１の領域より滑らかに形成さ
れた第２の領域が前記ロータ軸の軸方向に揃えて
２段形成されてなるとともに、 前記ブラシは、一端を片持ち支持された複数の
接触片を有し、これら接触片が前記第１および第
２の領域に分割接触されてなることを特徴とする
小型モータ。[Claims for Utility Model Registration] A motor case, a rotor shaft rotatably supported in the motor case, a commutator having a plurality of commutator pieces formed on the rotor shaft, and A small motor comprising a brush that is supported and comes into contact with the commutator pieces, wherein each of the commutator pieces has a first region having a rough surface formed in the circumferential direction and a brush that is formed smoother than the first region. The second area is formed in two stages aligned in the axial direction of the rotor shaft, and the brush has a plurality of contact pieces each having one end supported in a cantilever manner, and these contact pieces are connected to the first and second areas. A small motor characterized by having contact divided into two areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7879789U JP2544226Y2 (en) | 1989-07-04 | 1989-07-04 | Small motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7879789U JP2544226Y2 (en) | 1989-07-04 | 1989-07-04 | Small motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318661U true JPH0318661U (en) | 1991-02-25 |
| JP2544226Y2 JP2544226Y2 (en) | 1997-08-13 |
Family
ID=31622380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7879789U Expired - Lifetime JP2544226Y2 (en) | 1989-07-04 | 1989-07-04 | Small motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2544226Y2 (en) |
-
1989
- 1989-07-04 JP JP7879789U patent/JP2544226Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2544226Y2 (en) | 1997-08-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |