JPS6118339A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS6118339A
JPS6118339A JP13817584A JP13817584A JPS6118339A JP S6118339 A JPS6118339 A JP S6118339A JP 13817584 A JP13817584 A JP 13817584A JP 13817584 A JP13817584 A JP 13817584A JP S6118339 A JPS6118339 A JP S6118339A
Authority
JP
Japan
Prior art keywords
boss
magnet
magnetic material
time
rotor body
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
JP13817584A
Other languages
Japanese (ja)
Inventor
Kazutsugu Yasutomi
Minoru Koda
Kazumi Iwasaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13817584A priority Critical patent/JPS6118339A/en
Publication of JPS6118339A publication Critical patent/JPS6118339A/en
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

Abstract

PURPOSE:To simultaneously form a boss and an annular FG magnet at the time of manufacturing a rotor body by forming the boss and the magnet of the same magnetic material. CONSTITUTION:A boss 17 and an annular FG magnet 15 are formed of the same magnetic material. In other words, a gate formed of a magnetic material is provided at the boss 17, and a runner which is formed from the outer periphery of the boss 17 to the magnet 15 is provided to simultaneously form the boss 17 and the magnet 15. Thus, the boss and the magnet can be simultaneously formed at the time of manufacturing the rotor body to shorten the time of the manufacturing steps of the rotor body.
JP13817584A 1984-07-03 1984-07-03 Brushless motor Pending JPS6118339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13817584A JPS6118339A (en) 1984-07-03 1984-07-03 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13817584A JPS6118339A (en) 1984-07-03 1984-07-03 Brushless motor

Publications (1)

Publication Number Publication Date
JPS6118339A true JPS6118339A (en) 1986-01-27

Family

ID=15215795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13817584A Pending JPS6118339A (en) 1984-07-03 1984-07-03 Brushless motor

Country Status (1)

Country Link
JP (1) JPS6118339A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201049A (en) * 1986-02-26 1987-09-04 Matsushita Electric Ind Co Ltd Brushless motor
JPS6364561A (en) * 1986-09-02 1988-03-23 Matsushita Electric Ind Co Ltd Brushless motor
JPS6364559A (en) * 1986-09-02 1988-03-23 Matsushita Electric Ind Co Ltd Brushless motor
JPH05141984A (en) * 1991-11-16 1993-06-08 Yamaha Corp Rotary encoder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5583445A (en) * 1978-12-15 1980-06-23 Sony Corp Rotor of rotating electric machine
JPS5620378B2 (en) * 1973-11-10 1981-05-13
JPS5717277B2 (en) * 1974-10-04 1982-04-09

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5620378B2 (en) * 1973-11-10 1981-05-13
JPS5717277B2 (en) * 1974-10-04 1982-04-09
JPS5583445A (en) * 1978-12-15 1980-06-23 Sony Corp Rotor of rotating electric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201049A (en) * 1986-02-26 1987-09-04 Matsushita Electric Ind Co Ltd Brushless motor
JPS6364561A (en) * 1986-09-02 1988-03-23 Matsushita Electric Ind Co Ltd Brushless motor
JPS6364559A (en) * 1986-09-02 1988-03-23 Matsushita Electric Ind Co Ltd Brushless motor
JPH05141984A (en) * 1991-11-16 1993-06-08 Yamaha Corp Rotary encoder
JP2605536B2 (en) * 1991-11-16 1997-04-30 ヤマハ株式会社 Rotary encoder

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