JPS5625365A - Two-phase winding type brushless direct current motor - Google Patents

Two-phase winding type brushless direct current motor

Info

Publication number
JPS5625365A
JPS5625365A JP10151179A JP10151179A JPS5625365A JP S5625365 A JPS5625365 A JP S5625365A JP 10151179 A JP10151179 A JP 10151179A JP 10151179 A JP10151179 A JP 10151179A JP S5625365 A JPS5625365 A JP S5625365A
Authority
JP
Japan
Prior art keywords
rotor
winding
stator
permanent magnet
phase
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
JP10151179A
Other languages
Japanese (ja)
Inventor
Yasuhiko Tanaka
Takao Yoshimura
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 Refrigeration Co
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 Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP10151179A priority Critical patent/JPS5625365A/en
Publication of JPS5625365A publication Critical patent/JPS5625365A/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
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)

Abstract

PURPOSE:To stop a rotor at a fixed location and conduct the self-starting of a motor by a construction wherein fixed weak magnetic parts which do not cross at right angles with the center lines of the winding of each phase are formed to surfaces facing to the permanent magnet rotor of a stator with two-phase type stator winding. CONSTITUTION:A stator 3 with winding 10a, 10a', 10b, 10b' consisting of twophase four coils is mounted being opposed to a rotor 5 with a ring-shaped permanent magnet 8 which a N pole and a S pole are magnetized at 180 deg. intervals, and the winding of fixed phases is conducted in response to the locations of the rotor 5 and the rotor is driven. Weak magnetic parts 12 consisting of indentations at 180 deg. intervals are formed to surfaces facing to the rotor 5 of the stator 3 so as not to cross at right angles with the center lines La, Lb of the winding 10a, 10a' and 10b, 10b' relatively generating heteropoles at about 180 deg. locations. Thereby, the zero status of starting torque can be prevented when energizing the winding of each phase because the rotor 5 is stopped at a location where a boundary line 8a, wherein the magnetic force of the permanent magnet 8 is weak, aligns with a center line C of the weak magnetic parts 12.
JP10151179A 1979-08-08 1979-08-08 Two-phase winding type brushless direct current motor Pending JPS5625365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10151179A JPS5625365A (en) 1979-08-08 1979-08-08 Two-phase winding type brushless direct current motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10151179A JPS5625365A (en) 1979-08-08 1979-08-08 Two-phase winding type brushless direct current motor

Publications (1)

Publication Number Publication Date
JPS5625365A true JPS5625365A (en) 1981-03-11

Family

ID=14302588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10151179A Pending JPS5625365A (en) 1979-08-08 1979-08-08 Two-phase winding type brushless direct current motor

Country Status (1)

Country Link
JP (1) JPS5625365A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947278U (en) * 1982-09-17 1984-03-29 三洋電機株式会社 brushless motor
JPS6026810U (en) * 1983-08-02 1985-02-23 株式会社日本製鋼所 Granulation die for synthetic resin extruder
CN103580436A (en) * 2012-08-02 2014-02-12 深圳市瀚美特科技有限公司 Permanent magnet coreless brushless sensorless disk type direct-current motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947278U (en) * 1982-09-17 1984-03-29 三洋電機株式会社 brushless motor
JPS6026810U (en) * 1983-08-02 1985-02-23 株式会社日本製鋼所 Granulation die for synthetic resin extruder
CN103580436A (en) * 2012-08-02 2014-02-12 深圳市瀚美特科技有限公司 Permanent magnet coreless brushless sensorless disk type direct-current motor

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