JPS6229771U - - Google Patents

Info

Publication number
JPS6229771U
JPS6229771U JP1985119511U JP11951185U JPS6229771U JP S6229771 U JPS6229771 U JP S6229771U JP 1985119511 U JP1985119511 U JP 1985119511U JP 11951185 U JP11951185 U JP 11951185U JP S6229771 U JPS6229771 U JP S6229771U
Authority
JP
Japan
Prior art keywords
rotor magnet
magnetized part
poles
magnetized
pattern
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
JP1985119511U
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 JP1985119511U priority Critical patent/JPS6229771U/ja
Priority to US06/892,956 priority patent/US4701650A/en
Publication of JPS6229771U publication Critical patent/JPS6229771U/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/06—Printed-circuit motors and components

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (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回転
数検出用のパターンとロータマグネツトとの対向
状態を示す部分平面図、第２図は本考案による検
出基板の平面図、第３図はブラシレスモータの構
造を示す断面図、第４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５図は従来の
検出用基板を示す平面図、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従来
の回転数検出用パターンを示す拡大平面図、第８
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９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、８…
ステータコイル、９…検出基板、９ａ…リード板
、２１…回転数検出用パターン、２１ｂ，２１ｃ
…回転数検出用パターンのリード、θ…リードの
配置角度。

Claims (1)

    【実用新案登録請求の範囲】
  1. 回転方向にＮ極とＳ極が交互に配置されている
    回転駆動用の着磁部と、この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を有している
    ロータマグネツトが回転自在に支持されていると
    ともに、固定側にはロータマグネツトの回転駆動
    用の着磁部に対向してロータマグネツトの半径方
    向に電流が流れるステータコイルと、前記回転数
    検出用の着磁部に対向するパターンを有する検出
    基板とが設けられており、且つ検出基板のパター
    ンに接続されている一対のリードがロータマグネ
    ツトの回転駆動用の着磁部の部分を通過して外部
    へ延ばされているブラシレスモータにおいて、検
    出基板のパターンに接続されている一対のリード
    の各々が、前記駆動用着磁部における同じ極性の
    磁極の配列角度と同じ角度、またはこの配列角度
    の整数倍に相当する角度にて配置されていること
    を特徴とするブラシレスモータ。
JP1985119511U 1985-08-02 1985-08-02 Pending JPS6229771U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985119511U JPS6229771U (ja) 1985-08-02 1985-08-02
US06/892,956 US4701650A (en) 1985-08-02 1986-08-04 Brushless motor with phase cancelling leads for rotational speed detector pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985119511U JPS6229771U (ja) 1985-08-02 1985-08-02

Publications (1)

Publication Number Publication Date
JPS6229771U true JPS6229771U (ja) 1987-02-23

Family

ID=14763073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985119511U Pending JPS6229771U (ja) 1985-08-02 1985-08-02

Country Status (2)

Country Link
US (1) US4701650A (ja)
JP (1) JPS6229771U (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226478A (ja) * 1986-03-28 1987-10-05 Toshiba Corp 磁気デイスク装置のヘツド駆動機構
GB2194686A (en) * 1986-09-03 1988-03-09 Johnson Electric Ind Mfg Electric motor with velocity indicating device
JPH03104072U (ja) * 1990-02-07 1991-10-29
JPH06105522A (ja) * 1992-09-22 1994-04-15 Hitachi Ltd ブラシレスモータ
US5631508A (en) * 1993-07-27 1997-05-20 Mitsumi Electric Co., Ltd. Cost-saving, small-sized motor with improved stability over wide speed range
US5648693A (en) * 1994-12-02 1997-07-15 Teac Corporation Disk driving motor with low noise lead wire arrangement for frequency generator
CN1055181C (zh) * 1996-01-10 2000-08-02 吕灿华 无轭、无槽、轴向磁路电机
US6876167B1 (en) * 2003-01-24 2005-04-05 Trw Automotive U.S. Llc Method and apparatus for determining the rotational rate of a rotating device
JP2004340751A (ja) * 2003-05-15 2004-12-02 Japan Servo Co Ltd 周波数発電機付きモータ
KR102023509B1 (ko) * 2012-12-14 2019-09-20 엘지이노텍 주식회사 모터 및 그의 센싱 마그네트
US9923433B2 (en) * 2015-08-10 2018-03-20 Bose Corporation Encoder for a rotary motor
WO2020086095A1 (en) * 2018-10-26 2020-04-30 Borgwarner Inc. Rotating machine and method of using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558288A (en) * 1978-07-04 1980-01-21 Matsushita Electric Ind Co Ltd Motor with frequency generator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394594A (en) * 1975-07-24 1983-07-19 Papst-Motoren Kg Motor with a disk rotor
DE2647675C3 (de) * 1975-10-23 1983-01-20 Hitachi, Ltd., Tokyo Elektromotor
JPS5445712A (en) * 1977-09-19 1979-04-11 Hitachi Ltd Motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558288A (en) * 1978-07-04 1980-01-21 Matsushita Electric Ind Co Ltd Motor with frequency generator

Also Published As

Publication number Publication date
US4701650A (en) 1987-10-20

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