JPH0190274U - - Google Patents
Info
- Publication number
- JPH0190274U JPH0190274U JP18405087U JP18405087U JPH0190274U JP H0190274 U JPH0190274 U JP H0190274U JP 18405087 U JP18405087 U JP 18405087U JP 18405087 U JP18405087 U JP 18405087U JP H0190274 U JPH0190274 U JP H0190274U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- rotary shaft
- inner ring
- ball bearing
- rotating 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.)
- Pending
Links
- 230000036316 preload Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Support Of The Bearing (AREA)
- Brushless Motors (AREA)
- Motor Or Generator Frames (AREA)
Description
第１図はこの考案の一実施例による小型モータ
の断面図、第２図は同じく絶縁シートの斜視図、
第３図は騒音の測定結果を示すグラフ図、第４図
は従来の小型モータの断面図、第５図はその小型
モータのステータとロータとの分解状態の斜視図
である。
６，７……ボールベアリング、１０……マグネ
ツト、１１……ロータ、１２……ステータ、１３
ａ，１３ｂ，１４ａ，１４ｂ……磁極。
FIG. 1 is a sectional view of a small motor according to an embodiment of this invention, and FIG. 2 is a perspective view of an insulating sheet.
FIG. 3 is a graph showing noise measurement results, FIG. 4 is a sectional view of a conventional small motor, and FIG. 5 is an exploded perspective view of the stator and rotor of the small motor. 6, 7... Ball bearing, 10... Magnet, 11... Rotor, 12... Stator, 13
a, 13b, 14a, 14b...magnetic poles.
Claims (1)
転軸の一端部にマグネツトを有するロータを前記
磁極に対向して設け、前記回転軸をその一端側と
他端側に配置するボールベアリングで回転自在に
支持してなるものにおいて、前記回転軸の一端側
に配置したボールベアリングの内輪と前記ロータ
との間に予圧ばねを設け、この予圧ばねにより前
記ボールベアリングの内輪を前記回転軸の他端側
方向に押圧してなることを特徴とした小型モータ
。 A rotary shaft is provided on a stator having magnetic poles, a rotor having a magnet is provided at one end of the rotary shaft facing the magnetic pole, and the rotary shaft is rotatably mounted on ball bearings disposed at one end and the other end of the rotor. A preload spring is provided between the inner ring of a ball bearing disposed on one end of the rotating shaft and the rotor, and the preload spring causes the inner ring of the ball bearing to move toward the other end of the rotating shaft. A small motor that is characterized by being pressed by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18405087U JPH0190274U (en) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18405087U JPH0190274U (en) | 1987-12-02 | 1987-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0190274U true JPH0190274U (en) | 1989-06-14 |
Family
ID=31475438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18405087U Pending JPH0190274U (en) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0190274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10161013B4 (en) * | 2000-12-20 | 2005-10-20 | Delta Electronics Inc | Low-level electric motor |
-
1987
- 1987-12-02 JP JP18405087U patent/JPH0190274U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10161013B4 (en) * | 2000-12-20 | 2005-10-20 | Delta Electronics Inc | Low-level electric motor |