JPS59146719U - Magnetic rotation sensor for motor - Google Patents
Magnetic rotation sensor for motorInfo
- Publication number
- JPS59146719U JPS59146719U JP4063783U JP4063783U JPS59146719U JP S59146719 U JPS59146719 U JP S59146719U JP 4063783 U JP4063783 U JP 4063783U JP 4063783 U JP4063783 U JP 4063783U JP S59146719 U JPS59146719 U JP S59146719U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- rotation sensor
- permanent magnet
- magnetoresistive
- magnetic
- 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
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例を取付けたモータの構造図、第
２図は本考案の回転センサの構成図、第３図は本考案の
回転センサの接続図、第４図は本考案の回転センサの出
力波形図、第５図は本考案のモータからの磁気ノイズに
よる回転センサの影響を説明する波形図、第６図はモー
タの磁極長に対する磁気抵抗効果体の間隔と回転センサ
のＳ／Ｎ比を示したクラブである。
１・・・モータシャフト、２・・・モータベアリング、
３・・・モータハウジング及びステータヨーク、４・・
・モータコイル、５−・・ロータヨーク、６・・・ロー
タマグネット、７・・・回転センサ支持台、８・・・磁
気記録媒体、９・・・磁気抵抗効果素子、Ｒ１−Ｒ１及
びＲ１′〜Ｒ１′・・・磁気抵抗効果体、ｅｏ・・・回
転センサの出力端子、■・・・・・・電源。
−〆［３，４
一寸１１−町
ｌ
上←ト」→汁上七１
１−”′ ｉ占１贋゛″門′１
！（
ハハハハハハハ１Figure 1 is a structural diagram of a motor equipped with an embodiment of the present invention, Figure 2 is a configuration diagram of a rotation sensor of the present invention, Figure 3 is a connection diagram of the rotation sensor of the present invention, and Figure 4 is a diagram of the rotation sensor of the present invention. An output waveform diagram of the rotation sensor. Figure 5 is a waveform diagram explaining the influence of magnetic noise from the motor of the present invention on the rotation sensor. Figure 6 shows the spacing of the magnetoresistive effect body and the S of the rotation sensor with respect to the magnetic pole length of the motor. /N ratio. 1...Motor shaft, 2...Motor bearing,
3...Motor housing and stator yoke, 4...
- Motor coil, 5 - Rotor yoke, 6 - Rotor magnet, 7 - Rotation sensor support, 8 - Magnetic recording medium, 9 - Magnetoresistive element, R1-R1 and R1'~ R1'... Magnetoresistive element, eo... Rotation sensor output terminal, ■... Power supply. -〆[3,4 Issun 11-cho l upper←to'' → soup upper seven 1 1-''' i divination 1 false゛''mon'1! (Hahahahahahahaha1
Claims (1)
た回転ヨークに磁性体を取付け、この磁性体に磁気信号
を記録し、これと対向させて磁気抵抗効果体を所定間隙
で複数個配置した磁気抵抗効果素子を有し、前記永久磁
石回転子の回転を前記磁気抵抗効果体の抵抗変化として
取出するようにした回転センサに於いて、前記複数の磁
気抵抗効果体を２個ずつの３端子構成とすると共に前記
磁気抵抗効果素子の全幅を磁気抵抗効果素子を配置した
近くの永久磁石回転子の着磁ピッチに対して１１１０以
下としたことを特徴とするモータ用磁気回転センサ。 ２ 実用新案登録請求の範囲第１項に於いて、３端子を
構成する２個の磁気抵抗効果体の間隙を゛永久磁石回転
子の着磁ピッチに対して１７２０以下としたことを特徴
とするモータ用磁気回転センサ。 ３ 実用新案登録請求の範囲第１項に於いて、複数の磁
気抵抗効果体をブリツチ構成とすると共に磁気抵抗効果
素子の全幅を磁気抵抗効果素子を配置した近くの永久磁
石の着磁ピッチに対してｌ１１０以下にしたことを特徴
とするモータ用磁気回転センサ。 ４ 実用新案登録請求の範囲第１項に於いて、１つのブ
リッジを構成する４個の磁気抵抗効果体の間隙を永久磁
石の着磁ピッチに対して１１２０以下とすることを特徴
とするモータ用磁気回転センサ。[Claims for Utility Model Registration] 1. A magnetic body is attached to a rotating yoke equipped with a permanent magnet of a motor having a permanent magnet rotor, a magnetic signal is recorded on this magnetic body, and a magnetoresistive effect body is placed opposite to this. In a rotation sensor having a plurality of magnetoresistive elements arranged at predetermined intervals, the rotation of the permanent magnet rotor is detected as a resistance change of the magnetoresistive element, wherein the plurality of magnetoresistive elements For a motor, characterized in that the magnetoresistive element has a three-terminal configuration of two each, and the total width of the magnetoresistive element is 1110 or less with respect to the magnetization pitch of a permanent magnet rotor near which the magnetoresistive element is arranged. Magnetic rotation sensor. 2. Claim 1 of the utility model registration claim is characterized in that the gap between the two magnetoresistive elements constituting the three terminals is 1720 or less with respect to the magnetization pitch of the permanent magnet rotor. Magnetic rotation sensor for motors. 3. In claim 1 of the utility model registration claim, a plurality of magnetoresistive elements are arranged in a brittle configuration, and the full width of the magnetoresistive element is set relative to the magnetization pitch of the permanent magnet near which the magnetoresistive element is arranged. 1. A magnetic rotation sensor for a motor, characterized in that the temperature is less than l110. 4. A motor for a motor characterized in that the gap between the four magnetoresistive elements constituting one bridge is 1120 or less with respect to the magnetization pitch of the permanent magnet, as set forth in claim 1 of the utility model registration claim. Magnetic rotation sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4063783U JPS59146719U (en) | 1983-03-23 | 1983-03-23 | Magnetic rotation sensor for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4063783U JPS59146719U (en) | 1983-03-23 | 1983-03-23 | Magnetic rotation sensor for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59146719U true JPS59146719U (en) | 1984-10-01 |
Family
ID=30171254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4063783U Pending JPS59146719U (en) | 1983-03-23 | 1983-03-23 | Magnetic rotation sensor for motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59146719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182505A (en) * | 1985-02-08 | 1986-08-15 | Hitachi Ltd | Crank angle sensor |
-
1983
- 1983-03-23 JP JP4063783U patent/JPS59146719U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182505A (en) * | 1985-02-08 | 1986-08-15 | Hitachi Ltd | Crank angle sensor |
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