JPS62125371U - - Google Patents
Info
- Publication number
- JPS62125371U JPS62125371U JP1386386U JP1386386U JPS62125371U JP S62125371 U JPS62125371 U JP S62125371U JP 1386386 U JP1386386 U JP 1386386U JP 1386386 U JP1386386 U JP 1386386U JP S62125371 U JPS62125371 U JP S62125371U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- rotating shaft
- stator
- magnet
- driving
- 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 3
- 230000004907 flux Effects 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
第１図ないし第５図はこの考案による小型直流
ブラシレスモータの実施例を示し、第１図はその
ロータの平面図、第２図はそのモータの断面図、
第３図ａはそのコイルを鎖交する磁束密度を示す
図、第３図ｂはその発生トルクを示す図、第４図
および第５図はこの考案の他の実施例を示すロー
タの正面図およびロータの断面図、第６図は従来
のモータの断面図、第７図はそのロータの平面図
、第８図はそのステータの平面図、第９図はそれ
ぞれそのコイルに流れる波形、各相の発生トルク
および合成トルクを示す図である。
１…回転軸、３…ヨーク、４…マグネツト、６
…軸受、７…軸受ホルダ、８…プリント基板、９
…駆動コイル。
1 to 5 show an embodiment of a small DC brushless motor according to this invention, FIG. 1 is a plan view of the rotor, FIG. 2 is a sectional view of the motor,
Fig. 3a is a diagram showing the magnetic flux density interlinking the coil, Fig. 3b is a diagram showing the generated torque, and Figs. 4 and 5 are front views of the rotor showing other embodiments of this invention. 6 is a sectional view of a conventional motor, FIG. 7 is a plan view of the rotor, FIG. 8 is a plan view of the stator, and FIG. 9 shows the waveforms flowing through the coil and each phase. FIG. 3 is a diagram showing the generated torque and the resultant torque. 1...Rotating shaft, 3...Yoke, 4...Magnet, 6
... Bearing, 7... Bearing holder, 8... Printed circuit board, 9
...Drive coil.
Claims (1)
設したステータと、上記ステータに回転可能にな
された回転軸と、上記回転軸と一体に取付けられ
、上記駆動コイルと対向して駆動マグネツトが設
けられたロータとを備え、上記マグネツトの外周
面に沿つて上記ロータのヨーク部が凹凸状に形成
されたことを特徴とする小型直流ブラシレスモー
タ。 A stator fixed to a fixed member and having a plurality of drive coils arranged thereon, a rotating shaft rotatable on the stator, and a driving magnet attached integrally with the rotating shaft and facing the driving coil. 1. A small DC brushless motor, comprising: a rotor having a cylindrical shape, and a yoke portion of the rotor having an uneven shape along an outer circumferential surface of the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1386386U JPH0441752Y2 (en) | 1986-01-31 | 1986-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1386386U JPH0441752Y2 (en) | 1986-01-31 | 1986-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125371U true JPS62125371U (en) | 1987-08-08 |
| JPH0441752Y2 JPH0441752Y2 (en) | 1992-09-30 |
Family
ID=30803317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1386386U Expired JPH0441752Y2 (en) | 1986-01-31 | 1986-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441752Y2 (en) |
-
1986
- 1986-01-31 JP JP1386386U patent/JPH0441752Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441752Y2 (en) | 1992-09-30 |
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