JPH01159575U - - Google Patents
Info
- Publication number
- JPH01159575U JPH01159575U JP5507688U JP5507688U JPH01159575U JP H01159575 U JPH01159575 U JP H01159575U JP 5507688 U JP5507688 U JP 5507688U JP 5507688 U JP5507688 U JP 5507688U JP H01159575 U JPH01159575 U JP H01159575U
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- housing
- magnetic sensor
- brushless motor
- auxiliary magnet
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Brushless Motors (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図乃至第４図は本考案の第１実施例を示し
、第１図は全体断面図、第２図は第１図の要部拡
大図、第３図は波形図、第４図は応用可能な回路
の一例を示す図、第５図及び第６図は第２実施例
を示し、第５図は全体断面図、第６図は第５図の
要部拡大図、第７図及び第８図は第３実施例を示
し、第７図は全体断面図、第８図は第７図の要部
拡大図、第９図は他の実施例を示す断面図、第１
０図乃至第１２図は従来例を示し、第１０図は全
体断面図、第１１図は第１０図の要部拡大図、第
１２図は波形図である。
１…ハウジング、３…シヤフト、４…ステータ
、５…コイル、６…ロータケース、６ａ…ヨーク
、７…ロータマグネツト、８…磁気センサ、１０
…補助マグネツト。
Figures 1 to 4 show a first embodiment of the present invention, with Figure 1 being an overall sectional view, Figure 2 being an enlarged view of the main parts of Figure 1, Figure 3 being a waveform diagram, and Figure 4 being a waveform diagram. Figures 5 and 6 show an example of an applicable circuit. Figures 5 and 6 show the second embodiment, Figure 5 is an overall sectional view, Figure 6 is an enlarged view of the main part of Figure 5, Figures 7 and 6 are diagrams showing an example of an applicable circuit. FIG. 8 shows the third embodiment, FIG. 7 is an overall sectional view, FIG. 8 is an enlarged view of the main part of FIG. 7, FIG. 9 is a sectional view showing another embodiment, and FIG.
0 to 12 show a conventional example, where FIG. 10 is an overall sectional view, FIG. 11 is an enlarged view of the main part of FIG. 10, and FIG. 12 is a waveform diagram. DESCRIPTION OF SYMBOLS 1... Housing, 3... Shaft, 4... Stator, 5... Coil, 6... Rotor case, 6a... Yoke, 7... Rotor magnet, 8... Magnetic sensor, 10
...Auxiliary magnet.
Claims (1)
、前記ハウジングに設けたステータと、前記シヤ
フトに回転可能に設けた少なくともヨーク及びロ
ータマグネツトからなる回転体と、前記ハウジン
グに固定され前記ロータマグネツトの位置を検出
する磁気センサと、を備えたブラシレスモータに
おいて、前記回転体には外周側がヨーク端部で覆
われた補極としての補助マグネツトを取付けると
共に、前記磁気センサを前記補助マグネツトに対
向配置したブラシレスモータ。 ２ ヨーク端部は、補助マグネツトよりも磁気セ
ンサ側に長く突出している請求項１記載のブラシ
レスモータ。[Claims for Utility Model Registration] 1. A shaft rotatably inserted into a housing, a stator provided in the housing, a rotating body consisting of at least a yoke and a rotor magnet rotatably provided in the shaft, and a rotating body rotatably provided in the housing. A brushless motor is provided with a magnetic sensor that is fixed and detects the position of the rotor magnet, and an auxiliary magnet as a commutative pole whose outer circumferential side is covered with a yoke end is attached to the rotating body, and the magnetic sensor is mounted on the rotating body. A brushless motor placed opposite the auxiliary magnet. 2. The brushless motor according to claim 1, wherein the yoke end protrudes longer toward the magnetic sensor than the auxiliary magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5507688U JPH01159575U (en) | 1988-04-23 | 1988-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5507688U JPH01159575U (en) | 1988-04-23 | 1988-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159575U true JPH01159575U (en) | 1989-11-06 |
Family
ID=31280981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5507688U Pending JPH01159575U (en) | 1988-04-23 | 1988-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159575U (en) |
-
1988
- 1988-04-23 JP JP5507688U patent/JPH01159575U/ja active Pending