JPH01127369U - - Google Patents
Info
- Publication number
- JPH01127369U JPH01127369U JP2135288U JP2135288U JPH01127369U JP H01127369 U JPH01127369 U JP H01127369U JP 2135288 U JP2135288 U JP 2135288U JP 2135288 U JP2135288 U JP 2135288U JP H01127369 U JPH01127369 U JP H01127369U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- coil
- rotational position
- stator core
- brushless motor
- 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
- 238000001514 detection method Methods 0.000 claims description 2
Landscapes
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図は本考案の一実施例であるブラシレスモ
ータの縦断面図、第２図は第１図に示すＡ―Ａ′
線についての横断面図、第３図は従来例のブラシ
レスモータの縦断面図、第４図は第３図のＢ―Ｂ
′線についての横断面図である。
１……ハウジング、２……プリント基板、３…
…シヤフト、４……コア、４ｂ……コアの突出極
、５……ベアリング、６……コイル、７……ロー
タヨーク、８……マグネツト、９……回転位置検
知素子。
Fig. 1 is a vertical cross-sectional view of a brushless motor that is an embodiment of the present invention, and Fig. 2 is an A-A' shown in Fig. 1.
Figure 3 is a vertical cross-sectional view of a conventional brushless motor, and Figure 4 is a cross-sectional view taken along line B--B in Figure 3.
FIG. 1...Housing, 2...Printed circuit board, 3...
... Shaft, 4 ... Core, 4b ... Core protruding pole, 5 ... Bearing, 6 ... Coil, 7 ... Rotor yoke, 8 ... Magnet, 9 ... Rotational position detection element.
Claims (1)
円環状に設けられたマグネツトと、複数個のコイ
ルが巻回され、上記マグネツトと同心に配置され
たステータコアとを備え、上記マグネツトの磁極
位置を回転位置検知素子で検知し、この回転位置
検知素子の信号により上記コイルへの電流を制御
するようにしたブラシレスモータにおいて、回転
位置検知素子を上記マグネツトと対向して上記コ
アに設けたことを特徴とするブラシレスモータ。 It is magnetized to have different polarities alternately in the circumferential direction,
The stator core includes a magnet provided in an annular shape and a stator core around which a plurality of coils are wound and arranged concentrically with the magnet, and the magnetic pole position of the magnet is detected by a rotational position detection element. What is claimed is: 1. A brushless motor in which a current to the coil is controlled by a signal from the coil, characterized in that a rotational position detecting element is provided in the core facing the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135288U JPH01127369U (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135288U JPH01127369U (en) | 1988-02-19 | 1988-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127369U true JPH01127369U (en) | 1989-08-31 |
Family
ID=31238517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2135288U Pending JPH01127369U (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127369U (en) |
-
1988
- 1988-02-19 JP JP2135288U patent/JPH01127369U/ja active Pending
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