JPS5768655A - Permanent magnet field system provided with auxiliary magnetic poles - Google Patents

Permanent magnet field system provided with auxiliary magnetic poles

Info

Publication number
JPS5768655A
JPS5768655A JP14208180A JP14208180A JPS5768655A JP S5768655 A JPS5768655 A JP S5768655A JP 14208180 A JP14208180 A JP 14208180A JP 14208180 A JP14208180 A JP 14208180A JP S5768655 A JPS5768655 A JP S5768655A
Authority
JP
Japan
Prior art keywords
auxiliary magnetic
magnetic pole
permanent magnets
permanent magnet
magnetic poles
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.)
Granted
Application number
JP14208180A
Other languages
Japanese (ja)
Other versions
JPS634415B2 (en
Inventor
Fumio Tajima
Toshio Tomite
Shuichi Takamatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14208180A priority Critical patent/JPS5768655A/en
Publication of JPS5768655A publication Critical patent/JPS5768655A/en
Publication of JPS634415B2 publication Critical patent/JPS634415B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation

Abstract

PURPOSE:To improve starting torque efficiency and to prevent vibration or torque pulsation by a method wherein the division between a permanent magnet and an auxiliary magnetic pole is located a half slot pitch or more near to the auxiliary magnetic pole from the center of a field magnetic pole. CONSTITUTION:The inner wall of an iron yoke 9 is provided with permanent magnets 8 and 81 and with auxiliary magnetic poles 10 and 101 made of such magnetic substances as iron whose permeability is higher than the reverse permeability of the permanent magnets 8 and 81. The permanent magnets 8 and 81 are located in places where the armature magnetomotive force exerts a demagnetizing effect while the auxiliary magnetic poles 10 and 101 are located in places where the same exerts a magnetism enhancing effect. The permanent magnets 8 and 81 are arranged side by side with the auxiliary magnetic poles 10 and 101, all four jointly completing a field poles lineup. The divison point between a permanent magnet 8 or 81 and an auxiliary magnetic pole 10 or 101 staggers from the field system magnetic pole center C by a half or more of a slot pitch of an armature 1 towards an auxiliary magnetic pole 10 or 101.
JP14208180A 1980-10-13 1980-10-13 Permanent magnet field system provided with auxiliary magnetic poles Granted JPS5768655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14208180A JPS5768655A (en) 1980-10-13 1980-10-13 Permanent magnet field system provided with auxiliary magnetic poles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14208180A JPS5768655A (en) 1980-10-13 1980-10-13 Permanent magnet field system provided with auxiliary magnetic poles

Publications (2)

Publication Number Publication Date
JPS5768655A true JPS5768655A (en) 1982-04-27
JPS634415B2 JPS634415B2 (en) 1988-01-28

Family

ID=15306987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14208180A Granted JPS5768655A (en) 1980-10-13 1980-10-13 Permanent magnet field system provided with auxiliary magnetic poles

Country Status (1)

Country Link
JP (1) JPS5768655A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928868A (en) * 1982-08-06 1984-02-15 Hitachi Ltd Permanent magnet type dc electric machine
JPS5934484U (en) * 1982-08-24 1984-03-03 三菱電機株式会社 magnetic motor
JPS5960875U (en) * 1982-10-12 1984-04-20 三菱電機株式会社 magnetic motor
JPS6464549A (en) * 1987-09-04 1989-03-10 Hitachi Ltd Permanent magnet type starter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526217A (en) * 1991-07-22 1993-02-02 Nobuo Unno Concrete anchor device of footstep

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839907A (en) * 1971-09-22 1973-06-12
JPS4859309A (en) * 1971-11-30 1973-08-20
JPS5051103U (en) * 1973-09-07 1975-05-17

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839907A (en) * 1971-09-22 1973-06-12
JPS4859309A (en) * 1971-11-30 1973-08-20
JPS5051103U (en) * 1973-09-07 1975-05-17

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928868A (en) * 1982-08-06 1984-02-15 Hitachi Ltd Permanent magnet type dc electric machine
JPH0423505B2 (en) * 1982-08-06 1992-04-22 Hitachi Ltd
JPS5934484U (en) * 1982-08-24 1984-03-03 三菱電機株式会社 magnetic motor
JPS5960875U (en) * 1982-10-12 1984-04-20 三菱電機株式会社 magnetic motor
JPS6464549A (en) * 1987-09-04 1989-03-10 Hitachi Ltd Permanent magnet type starter
JPH0510903B2 (en) * 1987-09-04 1993-02-12 Hitachi Ltd

Also Published As

Publication number Publication date
JPS634415B2 (en) 1988-01-28

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