JPS6229768U - - Google Patents

Info

Publication number
JPS6229768U
JPS6229768U JP1985119512U JP11951285U JPS6229768U JP S6229768 U JPS6229768 U JP S6229768U JP 1985119512 U JP1985119512 U JP 1985119512U JP 11951285 U JP11951285 U JP 11951285U JP S6229768 U JPS6229768 U JP S6229768U
Authority
JP
Japan
Prior art keywords
magnetized part
rotational
detecting
rotor magnet
rotational speed
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
Application number
JP1985119512U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985119512U priority Critical patent/JPS6229768U/ja
Priority to US06/892,951 priority patent/US4701649A/en
Publication of JPS6229768U publication Critical patent/JPS6229768U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)

Description

【図面の簡単な説明】
第１図は本考案によるブラシレスモータの検出
基板を示す展開図、第２図は検出基板を彎曲させ
て配置した状態を示す斜視図、第３図はリードに
対して回転位置検出用の着磁部が通過した場合の
起電力を示した説明図、第４図はブラシレスモー
タの構造を示す断面図、第５図はブラシレスモー
タのコイル取り付け部分を示す平面図、第６図は
ロータマグネツトの平面図、第７図はロータマグ
ネツトと検出基板の対向状態を示す斜視図、第８
図は従来の検出基板を示す展開図、第９図は従来
のブラシレスモータの回転数検出パルスを示す説
明図、第１０図は本考案によるブラシレスモータ
の回転数検出パルスを示す説明図である。 ５…ロータマグネツト、５ａ…回転駆動用の主
着磁部、５ｂ…回転数検出用のＦＧ着磁部、５ｃ
…回転位置検出用のＰＧ着磁部、８…ステータコ
イル、９…検出基板、２１…回転数検出用パター
ン、２１ａ，２１ｂ…回転数検出用パターンのリ
ード、２２…回転位置検出用パターン。

Claims (1)

    【実用新案登録請求の範囲】
  1. 回転自在に支持されているロータマグネツトの
    平面部に、Ｎ極とＳ極が交互に配置された回転駆
    動用の着磁部が形成されているとともに、ロータ
    マグネツトの周面には、回転駆動用の着磁部より
    も小さいピツチにてＮ極とＳ極が交互に配置され
    ている回転数検出用の着磁部と、１８０°の角度
    にて配置されたロータの回転位置検出用の着磁部
    とが設けられており、且つ固定側にはロータマグ
    ネツトの回転駆動用の着磁部に対向するステータ
    コイルと、ロータマグネツトの外周を囲む検出基
    板とが設けられており、この検出基板には、前記
    回転数検出用の着磁部に対向している回転数検出
    パターンと、前記回転位置検出用の着磁部に対向
    している回転位置検出パターンとが形成されてい
    るブラシレスモータにおいて、前記検出基板には
    、回転数検出パターンの両端部に接続された一対
    のリードパターンが形成されており、この一対の
    リードパターンは、前記回転位置検出用の着磁部
    が通過する位置に配置されており、且つこのリー
    ドパターンは、ロータマグネツトの回転方向に対
    し傾斜して形成されていることを特徴とするブラ
    シレスモータ。
JP1985119512U 1985-08-02 1985-08-02 Pending JPS6229768U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985119512U JPS6229768U (ja) 1985-08-02 1985-08-02
US06/892,951 US4701649A (en) 1985-08-02 1986-08-04 Brushless motor with symmetrical leads for preventing signal distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985119512U JPS6229768U (ja) 1985-08-02 1985-08-02

Publications (1)

Publication Number Publication Date
JPS6229768U true JPS6229768U (ja) 1987-02-23

Family

ID=14763100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985119512U Pending JPS6229768U (ja) 1985-08-02 1985-08-02

Country Status (2)

Country Link
US (1) US4701649A (ja)
JP (1) JPS6229768U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299759A (ja) * 1987-05-28 1988-12-07 Akai Electric Co Ltd モ−タの回転位置検出装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036024C1 (ja) * 1990-11-13 1992-02-27 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
JPH06105522A (ja) * 1992-09-22 1994-04-15 Hitachi Ltd ブラシレスモータ
US5648693A (en) * 1994-12-02 1997-07-15 Teac Corporation Disk driving motor with low noise lead wire arrangement for frequency generator
US6201330B1 (en) 2000-01-18 2001-03-13 Fmc Corporation Adjustable tuning spring system for vibratory conveyor drives
JP4687871B2 (ja) * 2004-11-26 2011-05-25 株式会社富士通ゼネラル アキシャルギャップ型電動機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565537A (en) * 1975-10-23 1980-04-23 Hitachi Ltd Electric motor
JPS5445712A (en) * 1977-09-19 1979-04-11 Hitachi Ltd Motor
JPS6052660B2 (ja) * 1979-06-04 1985-11-20 松下電器産業株式会社 回転速度信号検出器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299759A (ja) * 1987-05-28 1988-12-07 Akai Electric Co Ltd モ−タの回転位置検出装置

Also Published As

Publication number Publication date
US4701649A (en) 1987-10-20

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