JPS62191367U - - Google Patents
Info
- Publication number
- JPS62191367U JPS62191367U JP7899386U JP7899386U JPS62191367U JP S62191367 U JPS62191367 U JP S62191367U JP 7899386 U JP7899386 U JP 7899386U JP 7899386 U JP7899386 U JP 7899386U JP S62191367 U JPS62191367 U JP S62191367U
- Authority
- JP
- Japan
- Prior art keywords
- rotor yoke
- pulse signal
- brushless motor
- high magnetic
- magnetic resistance
- 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 1
Landscapes
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
第1図は本考案のブラシレスモータの一実施例
を示す半断側面図、第2図は第1図の主マグネツ
トおよびパルス信号用マグネツトの構成を示す要
部拡大断面図、第3図乃至第6図は本考案の他の
実施例を示すロータの要部拡大断面図、第7図お
よび第8図は従来のブラシレスモータのロータの
要部を示す斜視図および断面図、第9図は従来の
ブラシレスモータから出力されるパルス信号波形
図である。
1,33……ロータヨーク、3,35……側壁
、5,37……主マグネツト、7,41……パル
ス信号用マグネツト、9,31……ロータ、11
,45……パルス信号出力用コイル、13……固
定シリンダ、21……回路基板、27……磁心、
29……駆動コイル、43,51,53……高い
磁気抵抗部(スリツト)、57……高い磁気抵抗
部(除去部)。
FIG. 1 is a half-sectional side view showing one embodiment of the brushless motor of the present invention, FIG. 2 is an enlarged sectional view of essential parts showing the configuration of the main magnet and pulse signal magnet shown in FIG. 1, and FIGS. 6 is an enlarged sectional view of the main part of a rotor showing another embodiment of the present invention, FIGS. 7 and 8 are perspective views and sectional views showing the main part of a rotor of a conventional brushless motor, and FIG. 9 is a conventional brushless motor. FIG. 3 is a pulse signal waveform diagram output from the brushless motor of FIG. 1, 33... Rotor yoke, 3, 35... Side wall, 5, 37... Main magnet, 7, 41... Pulse signal magnet, 9, 31... Rotor, 11
, 45...Pulse signal output coil, 13...Fixed cylinder, 21...Circuit board, 27...Magnetic core,
29... Drive coil, 43, 51, 53... High magnetic resistance part (slit), 57... High magnetic resistance part (removal part).
Claims (1)
状のロータヨークと、 前記駆動コイルに対向して前記ロータヨークの
側壁内側に止着され、かつ多極着磁された環状の
主マグネツトと、 この主マグネツトの内側から延設されて、前記
ロータヨークの内面に配置される環状のパルス信
号用マグネツトと、 このパルス信号用マグネツトに対向して前記ス
テータ側に配置され、前記ロータヨークの回転に
伴つてパルス信号を出力するパルス信号出力用コ
イルと、 を具備してなるブラシレスモータにおいて、 前記主マグネツトと前記パルス信号用マグネツ
トとの連結部近傍に高い磁気抵抗部が形成されて
なることを特徴とするブラシレスモータ。 (2) 前記高い磁気抵抗部が、スリツトである実
用新案登録請求の範囲第1項記載のブラシレスモ
ータ。 (3) 前記高い磁気抵抗部が、前記主マグネツト
における前記パルス信号用マグネツトとは反対側
に形成された除去部である実用新案登録請求の範
囲第1項記載のブラシレスモータ。[Claims for Utility Model Registration] (1) A drive coil disposed on the stator side, a cup-shaped rotor yoke rotatably supported on the stator side, and an inner side wall of the rotor yoke facing the drive coil. an annular main magnet fixed to the rotor yoke and magnetized with multiple poles; an annular pulse signal magnet extending from the inside of the main magnet and disposed on the inner surface of the rotor yoke; A brushless motor comprising: a pulse signal output coil disposed on the stator side facing the rotor yoke and outputting a pulse signal as the rotor yoke rotates; A brushless motor characterized in that a high magnetic resistance part is formed near a connecting part. (2) The brushless motor according to claim 1, wherein the high magnetic resistance portion is a slit. (3) The brushless motor according to claim 1, wherein the high magnetic resistance section is a removal section formed on the side of the main magnet opposite to the pulse signal magnet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7899386U JPH0715339Y2 (en) | 1986-05-26 | 1986-05-26 | Brushless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7899386U JPH0715339Y2 (en) | 1986-05-26 | 1986-05-26 | Brushless motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62191367U true JPS62191367U (en) | 1987-12-05 |
JPH0715339Y2 JPH0715339Y2 (en) | 1995-04-10 |
Family
ID=30928443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7899386U Expired - Lifetime JPH0715339Y2 (en) | 1986-05-26 | 1986-05-26 | Brushless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0715339Y2 (en) |
-
1986
- 1986-05-26 JP JP7899386U patent/JPH0715339Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0715339Y2 (en) | 1995-04-10 |