JPH0366570U - - Google Patents
Info
- Publication number
- JPH0366570U JPH0366570U JP12734989U JP12734989U JPH0366570U JP H0366570 U JPH0366570 U JP H0366570U JP 12734989 U JP12734989 U JP 12734989U JP 12734989 U JP12734989 U JP 12734989U JP H0366570 U JPH0366570 U JP H0366570U
- Authority
- JP
- Japan
- Prior art keywords
- comb
- coil
- substrate
- disposed
- rotor
- 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
- 239000000758 substrate Substances 0.000 claims 5
- 244000126211 Hericium coralloides Species 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 4
- 230000005415 magnetization Effects 0.000 claims 1
- 230000005405 multipole Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Brushless Motors (AREA)
Description
第１図は、本考案の一実施例に従うＦＧ及びＰ
Ｇを備えたブラシレスモータを示す部分断面図、
第２図は、前記第１図にて図示したブラシレスモ
ータの回路構成図、第３図は、本考案の一実施例
に従うブラシレスモータに係るＰＧ信号処理のタ
イミングチヤート、第４図は、本考案の一実施例
に従うブラシレスモータのＰＧ信号の出力特性を
示した図、第５図は、従来技術に従うＦＧ及びＰ
Ｇを備えたブラシレスモータを示す部分断面図、
第６図は、前記第５図にて図示したブラシレスモ
ータの回路構成図、第７図は、従来技術に従うブ
ラシレスモータのＰＧ信号の出力特性を示した図
である。
２……ＦＧパターンコイル、３……ＰＧパター
ンコイル、４……ＦＧ着磁部、５……ＰＧ着磁部
、６……ロータマグネツト、８……ステータコイ
ル、１０……ブラシレスモータ、１１……固定ド
ラム、１２……駆動軸、１４……シールドケース
、１５……ロータヨーク、１６……ステータ基板
、２４……ＰＧノイズキヤンセルパターンコイル
。
FIG. 1 shows FG and P according to an embodiment of the present invention.
A partial cross-sectional view showing a brushless motor equipped with G,
FIG. 2 is a circuit diagram of the brushless motor illustrated in FIG. 1, FIG. 3 is a timing chart of PG signal processing for the brushless motor according to an embodiment of the present invention, and FIG. 4 is a diagram of the brushless motor according to the present invention. FIG. 5 is a diagram showing the output characteristics of the PG signal of the brushless motor according to an embodiment, and FIG.
A partial cross-sectional view showing a brushless motor equipped with G,
FIG. 6 is a circuit diagram of the brushless motor shown in FIG. 5, and FIG. 7 is a diagram showing the output characteristics of the PG signal of the brushless motor according to the prior art. 2...FG pattern coil, 3...PG pattern coil, 4...FG magnetizing section, 5...PG magnetizing section, 6...Rotor magnet, 8...Stator coil, 10...Brushless motor, 11 ... Fixed drum, 12 ... Drive shaft, 14 ... Shield case, 15 ... Rotor yoke, 16 ... Stator board, 24 ... PG noise cancel pattern coil.
Claims (1)
いるコイルとを有する固定子機構と、 前記コイル及び基板と対向するように配設され
た永久磁石を有し、前記コイル及び基板と所定の
間隔を置いて前記固定子機構に回転自在に支持さ
れている回転子機構と 前記回転子機構に前記基板と対向して互いに異
なるピツチ間隔で全体として略環状を呈するよう
に配設された回転速度検出用及び回転位置検出用
の多極着磁が施された回転検出用の永久磁石と、 前記回転検出用の永久磁石と対向するように前
記基板面に配設され、前記回転子の回転速度に応
じた電気信号を出力する第１のくし歯状パターン
コイルと、 前記第１のくし歯状パターンコイルと重合しな
いように前記第１のくし歯状パターンコイルとと
もに前記回転検出用の永久磁石と対向するように
前記基板面に配設され、回転中の前記回転子の所
定位置に対応する電気信号を出力する第２のくし
歯状パターンコイルと、 前記基板の前記第１、第２のくし歯状パターン
コイルが配設されている面の裏面側に配設され前
記第２のくし歯状パターンコイルと直列接続され
た前記第２のくし歯状パターンコイルから出力さ
れる電気信号とは略逆相の電気信号を出力する第
３のくし歯状パターンコイルと、 を備えたことを特徴とするブラシレスモータ。[Claims for Utility Model Registration] A stator mechanism having a substrate and a coil disposed at a distance from the substrate, and a permanent magnet disposed to face the coil and the substrate. a rotor mechanism rotatably supported by the stator mechanism at a predetermined distance from the coil and the substrate; and a rotor mechanism having a substantially annular shape as a whole with mutually different pitch intervals facing the rotor mechanism. a rotation detection permanent magnet with multi-pole magnetization for rotation speed detection and rotation position detection arranged as shown in FIG. a first comb-tooth pattern coil that outputs an electric signal according to the rotational speed of the rotor; a second comb-like pattern coil disposed on the substrate surface to face the rotation detection permanent magnet and outputting an electric signal corresponding to a predetermined position of the rotating rotor; from the second comb-tooth pattern coil disposed on the back side of the surface on which the first and second comb-tooth pattern coils are disposed and connected in series with the second comb-tooth pattern coil; A brushless motor comprising: a third comb-like pattern coil that outputs an electrical signal having a substantially opposite phase to the output electrical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12734989U JPH0366570U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12734989U JPH0366570U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366570U true JPH0366570U (en) | 1991-06-27 |
Family
ID=31675108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12734989U Pending JPH0366570U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366570U (en) |
-
1989
- 1989-10-31 JP JP12734989U patent/JPH0366570U/ja active Pending
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