JPS62122478U - - Google Patents
Info
- Publication number
- JPS62122478U JPS62122478U JP1986009344U JP934486U JPS62122478U JP S62122478 U JPS62122478 U JP S62122478U JP 1986009344 U JP1986009344 U JP 1986009344U JP 934486 U JP934486 U JP 934486U JP S62122478 U JPS62122478 U JP S62122478U
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- circuit board
- light emitting
- brushless motor
- light receiving
- 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
- 230000005284 excitation Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 4
- 238000009434 installation Methods 0.000 claims 1
Landscapes
- Brushless Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【図面の簡単な説明】
図面は本考案の実施例を示すもので、第1図は
ブラシレスモータの要部縦断背面図、第2図はブ
ラシレスモータの部分切欠横断平面図、第3図は
第2図―線断面図、第4図は第3図の要部拡
大図、第5図は第4図V矢視図、第6図は第5図
―線断面図、第7図はブラシレスモータの制
御装置の構成図、第8図は各相のセンサ信号と各
相コイルの励磁及び逆励磁等を示す動作タイムチ
ヤートである。
M…ブラシレスモータ、1…ロータ、1a…ロ
ータ軸、2…ステータ、3…回転スリツト板、U
,V,W…夫々U相・V相・W相励磁極、4U,
4V,4W…夫々U相コイル・V相コイル・W相
コイル、5U,5V…夫々U相センサ・V相セン
サ、5Ua…発光部、5Ub…受光部、5Va…
発光部、5Vb…受光部、6…回転パルスセンサ
、6a…発光部、6b…受光部、7…台形スリツ
ト、7a,7b…端縁、8U…U相スリツト、8
Ua,8Ub…端縁、8V…V相スリツト、8V
a,8Vb…端縁、30…モータハウジング、3
1…プリント基板、36a,36b…端子。[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which FIG. 1 is a vertical cross-sectional rear view of the main parts of a brushless motor, FIG. 2 is a partially cutaway cross-sectional plan view of the brushless motor, and FIG. Figure 2 - Line sectional view, Figure 4 is an enlarged view of the main part of Figure 3, Figure 5 is a view taken in the direction of arrow V in Figure 4, Figure 6 is Figure 5 - Line sectional view, Figure 7 is a brushless motor. FIG. 8 is an operation time chart showing the sensor signals of each phase and the excitation and reverse excitation of the coils of each phase. M...Brushless motor, 1...Rotor, 1a...Rotor shaft, 2...Stator, 3...Rotating slit plate, U
, V, W... U-phase, V-phase, W-phase excitation poles, 4U,
4V, 4W...U-phase coil, V-phase coil, W-phase coil, respectively, 5U, 5V...U-phase sensor, V-phase sensor, respectively, 5Ua...light emitting section, 5Ub...light receiving section, 5Va...
Light emitting part, 5Vb... Light receiving part, 6... Rotating pulse sensor, 6a... Light emitting part, 6b... Light receiving part, 7... Trapezoidal slit, 7a, 7b... Edge, 8U... U phase slit, 8
Ua, 8Ub...Edge, 8V...V phase slit, 8V
a, 8Vb...edge, 30...motor housing, 3
1...Printed circuit board, 36a, 36b...terminals.
Claims (1)
ロータと励磁コイルがそれぞれ巻装された複数相
のステータとをモータハウジング中に収納して構
成されたブラシレスモータを駆動制御するために
、前記ロータの回転位置に関する複数の位置信号
を発生する複数の位置検出器を備え、その複数の
位置信号に従つて前記複数相のステータの励磁コ
イルに通電する装置において、 前記複数の位置検出器の各々は、前記ブラシレ
スモータの出力軸に固定された回転体の回転位置
を検出するためにその回転体に近接して配置され
た発光部と受光部とを有し、 前記回転体と直交する方向に延びる1枚の回路
基板が前記モータハウジングに取付けられ、 各位置検出器の発光部と受光部とは、その発光
面と受光面とが前記回転体に対向するように構成
されるとともに、その接続端子が前記回路基板に
向う方向に前記回転体に沿つて延びるように構成
され、 前記複数の位置検出器は、前記回転体の回転中
心より前記回路基板の配設側において回転体の半
径方向と交差する方向に位置を異ならせるととも
に回転体の回転中心から異なる半径の位置に配置
されていることを特徴とするブラシレスモータ制
御のための回転検出装置。 (2) 前記回転体には、各位置検出器により光学
的に検出される被検出部が回転体の円周方向に所
定幅をもつて形成され、その被検出部の回転体の
円周方向と交差する端縁は、その端縁が各位置検
出器の近傍を通過する時に前記回路基板と直交す
る方向に位置するように形成されている実用新案
登録請求の範囲第1項記載のブラシレスモータ制
御のための回転検出装置。 (3) 前記回転体には、その半径方向に細く延び
る多数のスリツトが円周方向に配列され、それら
のスリツトを検出するために発光部と受光部とか
らなる速度検出器が前記回路基板上に取付けられ
、その速度検出器の発光部と受光部とは、前記回
転体の回転中心を通る前記回路基板に垂直な線上
に位置するように配置されている実用新案登録請
求の範囲第1項記載のブラシレスモータ制御のた
めの回転検出装置。[Claims for Utility Model Registration] (1) A motor housing consisting of a rotor that is alternately magnetized with different magnetic poles in the circumferential direction and a multi-phase stator each wrapped with an excitation coil. In order to drive and control a brushless motor, a device includes a plurality of position detectors that generate a plurality of position signals regarding the rotational position of the rotor, and energizes the excitation coils of the plurality of phases of the stator according to the plurality of position signals. In this case, each of the plurality of position detectors includes a light emitting part and a light receiving part arranged close to the rotating body to detect the rotational position of the rotating body fixed to the output shaft of the brushless motor. A circuit board extending in a direction perpendicular to the rotating body is attached to the motor housing, and a light emitting part and a light receiving part of each position detector have a light emitting surface and a light receiving surface facing the rotating body. and the connection terminal thereof is configured to extend along the rotating body in a direction toward the circuit board, and the plurality of position detectors are arranged so as to extend from the center of rotation of the rotating body to the circuit board. A rotation detection device for controlling a brushless motor, characterized in that the rotation detection device is arranged at different positions in a direction intersecting the radial direction of the rotor on the installation side and at different radii from the center of rotation of the rotor. (2) On the rotating body, a detected part that is optically detected by each position detector is formed with a predetermined width in the circumferential direction of the rotating body, and the detected part is formed with a predetermined width in the circumferential direction of the rotating body. The brushless motor according to claim 1, wherein the edge intersecting with the circuit board is formed such that the edge intersects with the circuit board in a direction perpendicular to the circuit board when the edge passes near each position detector. Rotation detection device for control. (3) A number of slits extending narrowly in the radial direction are arranged in the circumferential direction of the rotating body, and a speed detector consisting of a light emitting part and a light receiving part is mounted on the circuit board to detect the slits. Claim 1 of the Utility Model Registration Claim: The speed detector is mounted on a speed detector, and the light emitting part and the light receiving part of the speed detector are arranged so as to be located on a line perpendicular to the circuit board passing through the center of rotation of the rotating body. A rotation detection device for controlling the described brushless motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986009344U JPS62122478U (en) | 1986-01-25 | 1986-01-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986009344U JPS62122478U (en) | 1986-01-25 | 1986-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62122478U true JPS62122478U (en) | 1987-08-04 |
Family
ID=30794569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986009344U Pending JPS62122478U (en) | 1986-01-25 | 1986-01-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62122478U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS508011A (en) * | 1973-05-24 | 1975-01-28 | ||
JPS59221620A (en) * | 1983-05-31 | 1984-12-13 | Matsushita Electric Ind Co Ltd | Optical rotation detector |
-
1986
- 1986-01-25 JP JP1986009344U patent/JPS62122478U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS508011A (en) * | 1973-05-24 | 1975-01-28 | ||
JPS59221620A (en) * | 1983-05-31 | 1984-12-13 | Matsushita Electric Ind Co Ltd | Optical rotation detector |
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