JPS62154782U - - Google Patents
Info
- Publication number
- JPS62154782U JPS62154782U JP4191286U JP4191286U JPS62154782U JP S62154782 U JPS62154782 U JP S62154782U JP 4191286 U JP4191286 U JP 4191286U JP 4191286 U JP4191286 U JP 4191286U JP S62154782 U JPS62154782 U JP S62154782U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnetic pole
- pole detection
- bearing bracket
- ring
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図乃至第４図は本考案の一実施例に関する
もので、第１図は磁極検出部上半分部分断面図、
第２図はブラシレスモータの上半分縦断面図、第
３図は第２図の磁極検出部斜視図、第４図は磁極
検出用永久磁石からの磁束の流れと磁極検出素子
との関係説明図であり、第５図は従来のブラシレ
スモータの上半分縦断面図である。
２，３……ベアリングブラケツト、１０……磁
極検出用永久磁石、１１……基板、１３……磁極
検出素子、１７……リング、１８……カバー、２
０……Ｏリング。
1 to 4 relate to an embodiment of the present invention, in which FIG. 1 is a partial cross-sectional view of the upper half of the magnetic pole detection section;
Fig. 2 is a vertical cross-sectional view of the upper half of the brushless motor, Fig. 3 is a perspective view of the magnetic pole detection part in Fig. 2, and Fig. 4 is an explanatory diagram of the relationship between the flow of magnetic flux from the permanent magnet for magnetic pole detection and the magnetic pole detection element. FIG. 5 is a vertical sectional view of the upper half of a conventional brushless motor. 2, 3...Bearing bracket, 10...Permanent magnet for magnetic pole detection, 11...Substrate, 13...Magnetic pole detection element, 17...Ring, 18...Cover, 2
0...O-ring.
Claims (1)
より検出しこの検出信号に応じて固定子巻線を順
次通電制御するものにおいて、前記永久磁石式回
転子の回転軸を反負荷側ベアリングブラケツト外
部まで延長させるとともに、この回転軸延長部分
に嵌合しボス部と円盤部を有する強磁性体のリン
グと、このリングの円盤部の反ベアリングブラケ
ツト側に回転子の永久磁石の磁極に対応して取付
けられる磁極検出用の永久磁石と、前記磁極検出
用永久磁石を覆つて前記永久磁石式回転子と同心
の周方向に調整可能に前記反負荷側ベアリングブ
ラケツトに固定されるカバーと、このカバーの内
部に前記リングの円盤部と対向して配設された基
盤部に取付けられ前記磁極検出用永久磁石の磁極
を検出する磁極検出素子とを具備することを特徴
とするブラシレスモータ。 In a device in which the rotational position of the permanent magnet rotor is detected by a magnetic pole detection element and the stator windings are sequentially energized in accordance with this detection signal, the rotation axis of the permanent magnet rotor is extended to the outside of the anti-load side bearing bracket. A ferromagnetic ring having a boss part and a disc part fits into this rotating shaft extension part, and is attached to the opposite side of the bearing bracket of the disc part of this ring in correspondence with the magnetic poles of the permanent magnet of the rotor. a permanent magnet for magnetic pole detection; a cover that covers the permanent magnet for magnetic pole detection and is fixed to the counter-load side bearing bracket so as to be adjustable in a circumferential direction concentric with the permanent magnet rotor; A brushless motor characterized in that the brushless motor is equipped with a magnetic pole detection element that is attached to a base part disposed opposite to the disc part of the ring and detects the magnetic pole of the permanent magnet for magnetic pole detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4191286U JPS62154782U (en) | 1986-03-24 | 1986-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4191286U JPS62154782U (en) | 1986-03-24 | 1986-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62154782U true JPS62154782U (en) | 1987-10-01 |
Family
ID=30857344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4191286U Pending JPS62154782U (en) | 1986-03-24 | 1986-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62154782U (en) |
-
1986
- 1986-03-24 JP JP4191286U patent/JPS62154782U/ja active Pending
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