JPH0257275U - - Google Patents
Info
- Publication number
- JPH0257275U JPH0257275U JP13568388U JP13568388U JPH0257275U JP H0257275 U JPH0257275 U JP H0257275U JP 13568388 U JP13568388 U JP 13568388U JP 13568388 U JP13568388 U JP 13568388U JP H0257275 U JPH0257275 U JP H0257275U
- Authority
- JP
- Japan
- Prior art keywords
- salient pole
- stator
- rotor yoke
- attached
- position detection
- 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 5
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
第１図は本考案に係るブラシレスモータの一実
施例を示す要部断面図、第２図はブラシレスモー
タの一般的な構成を示す縦断面図、第３図はブラ
シレスモータの磁心コア、位置検出素子および駆
動マグネツトの位置関係を示す図、第４図は従来
のブラシレスモータを示す要部縦断面図、第５図
は第４図のブラシレスモータにおける駆動マグネ
ツトからの磁路を説明する図である。
１…ステータ部材（固定シリンダ）、３…中空
部、５…ボールベアリング、７…回転軸、９…突
極歯、９ａ…特定の突極歯、１１…磁心コア、１
３…駆動コイル、１５…ロータヨーク、１７…駆
動マグネツト、１９…ステータ基板、２１…位置
検出素子（ホール素子）、２３…回転シリンダ、
３３…ロータ。
Fig. 1 is a sectional view of essential parts showing an embodiment of a brushless motor according to the present invention, Fig. 2 is a vertical sectional view showing the general configuration of a brushless motor, and Fig. 3 is a magnetic core of the brushless motor, position detection A diagram showing the positional relationship between elements and a drive magnet, FIG. 4 is a vertical cross-sectional view of a main part showing a conventional brushless motor, and FIG. 5 is a diagram illustrating a magnetic path from the drive magnet in the brushless motor of FIG. 4. . DESCRIPTION OF SYMBOLS 1... Stator member (fixed cylinder), 3... Hollow part, 5... Ball bearing, 7... Rotating shaft, 9... Salient pole tooth, 9a... Specific salient pole tooth, 11... Magnetic core, 1
3... Drive coil, 15... Rotor yoke, 17... Drive magnet, 19... Stator board, 21... Position detection element (Hall element), 23... Rotating cylinder,
33...Rotor.
Claims (1)
と、 このステータ基板と並行に前記ステータ部材に
取付けられた複数の突極歯を有する磁心コアと、 前記複数の突極歯に巻かれた複数の駆動コイル
と、 前記ステータ部材に回転自在に軸支されたロー
タヨークと、 前記突極歯の先端と僅かな間隔を置いて対向す
るように前記ロータヨークに取付けられた環状の
駆動マグネツトと、 前記所定の突極歯先端部と重なるように前記ス
テータ基板に取付けられ前記ロータヨークの回転
に伴つて前記駆動マグネツトの磁極位置信号を出
力する位置検出素子と、 を具備してなるブラシレスモータにおいて、 前記位置検出素子と重なる前記所定の突極歯先
端部が、前記位置検出素子と離れるように屈曲形
成されてなることを特徴とするブラシレスモータ
。[Claims for Utility Model Registration] A stator member; a stator board attached to the stator member; a magnetic core having a plurality of salient pole teeth attached to the stator member in parallel with the stator board; a plurality of drive coils wound around salient pole teeth; a rotor yoke rotatably supported by the stator member; and a rotor yoke attached to the rotor yoke so as to face the tips of the salient pole teeth with a slight spacing therebetween. an annular drive magnet; and a position detection element that is attached to the stator substrate so as to overlap with the tip of the predetermined salient pole tooth and outputs a magnetic pole position signal of the drive magnet as the rotor yoke rotates. A brushless motor characterized in that the predetermined salient pole tooth tip that overlaps with the position detection element is bent so as to separate from the position detection element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13568388U JPH0257275U (en) | 1988-10-17 | 1988-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13568388U JPH0257275U (en) | 1988-10-17 | 1988-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0257275U true JPH0257275U (en) | 1990-04-25 |
Family
ID=31395530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13568388U Pending JPH0257275U (en) | 1988-10-17 | 1988-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0257275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124865A (en) * | 2007-11-15 | 2009-06-04 | Panasonic Corp | Motor and electronic apparatus using the same |
| JP2016226254A (en) * | 2015-05-29 | 2016-12-28 | 日本電産株式会社 | motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61147765A (en) * | 1984-12-20 | 1986-07-05 | Sanyo Electric Co Ltd | Brushless motor |
| JPS6336163B2 (en) * | 1981-12-28 | 1988-07-19 | Tektronix Inc |
-
1988
- 1988-10-17 JP JP13568388U patent/JPH0257275U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6336163B2 (en) * | 1981-12-28 | 1988-07-19 | Tektronix Inc | |
| JPS61147765A (en) * | 1984-12-20 | 1986-07-05 | Sanyo Electric Co Ltd | Brushless motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124865A (en) * | 2007-11-15 | 2009-06-04 | Panasonic Corp | Motor and electronic apparatus using the same |
| JP2016226254A (en) * | 2015-05-29 | 2016-12-28 | 日本電産株式会社 | motor |
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