JPS5771258A - Permanent magnet rotary type brushless motor - Google Patents

Permanent magnet rotary type brushless motor

Info

Publication number
JPS5771258A
JPS5771258A JP55145664A JP14566480A JPS5771258A JP S5771258 A JPS5771258 A JP S5771258A JP 55145664 A JP55145664 A JP 55145664A JP 14566480 A JP14566480 A JP 14566480A JP S5771258 A JPS5771258 A JP S5771258A
Authority
JP
Japan
Prior art keywords
windings
phase
rotor
torque
permanent magnet
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
JP55145664A
Other languages
Japanese (ja)
Inventor
Kazuhiko Iijima
Yoshihisa Niimura
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP55145664A priority Critical patent/JPS5771258A/en
Publication of JPS5771258A publication Critical patent/JPS5771258A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To enable to select the suitable torque in accordance with the condition of operation in which the motor is used without changing the source voltage by a method wherein rotor windings of the required phases are formed using a plurality of groups of windings, and the windings of each group are switched and connected using a turn-number change-over switch. CONSTITUTION:This motor consists of the rotor 1 consisting of a permanent magnet, the stator 2 having the rotor winding of two groups, (a)and(b)groups, for each phase, the turn number change-over switches 4R-4T which perform switchin of the rotor winding for each phase between the state wherein the stator winding in the same phase is connected in series and the state wherein the stator winding of the other group is disconnected, and the excitation change-over circuit 5 which is used to switch the excitation for the stator windings of each phase successivly. Accordingly the torque can be increased when he motor is operated at a low speed and the torque can also be reduced at a high speed operation, thereby enabling to select a suitable torque in accordance with the condition of operatin without changing the source voltage.
JP55145664A 1980-10-20 1980-10-20 Permanent magnet rotary type brushless motor Pending JPS5771258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55145664A JPS5771258A (en) 1980-10-20 1980-10-20 Permanent magnet rotary type brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55145664A JPS5771258A (en) 1980-10-20 1980-10-20 Permanent magnet rotary type brushless motor

Publications (1)

Publication Number Publication Date
JPS5771258A true JPS5771258A (en) 1982-05-04

Family

ID=15390230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55145664A Pending JPS5771258A (en) 1980-10-20 1980-10-20 Permanent magnet rotary type brushless motor

Country Status (1)

Country Link
JP (1) JPS5771258A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959062A (en) * 1982-09-29 1984-04-04 Takahashi Yoshiteru Semiconductor motor capable of obtaining various characteristics with one motor
US4528485A (en) * 1982-04-13 1985-07-09 General Electric Company Electronically commutated motor, method of operating such, control circuit, laundry machine and drive therefor
US4612486A (en) * 1985-04-19 1986-09-16 Itsuki Ban Semiconductor electric motor having a rotary transformer to excite a rotor
US4636936A (en) * 1984-04-19 1987-01-13 General Electric Company Control system for an electronically commutated motor
US4642536A (en) * 1984-04-19 1987-02-10 General Electric Company Control system for an electronically commutated motor, method of controlling such, method of controlling an electronically commutated motor and laundry apparatus
US4654566A (en) * 1974-06-24 1987-03-31 General Electric Company Control system, method of operating an electronically commutated motor, and laundering apparatus
JP2003018879A (en) * 2001-06-28 2003-01-17 Toshiba Corp Washing machine and permanent magnet dc motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151708A (en) * 1974-11-01 1976-05-07 Canon Kk BURASHIRE SUMOOTAA

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151708A (en) * 1974-11-01 1976-05-07 Canon Kk BURASHIRE SUMOOTAA

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654566A (en) * 1974-06-24 1987-03-31 General Electric Company Control system, method of operating an electronically commutated motor, and laundering apparatus
US4528485A (en) * 1982-04-13 1985-07-09 General Electric Company Electronically commutated motor, method of operating such, control circuit, laundry machine and drive therefor
JPS5959062A (en) * 1982-09-29 1984-04-04 Takahashi Yoshiteru Semiconductor motor capable of obtaining various characteristics with one motor
US4636936A (en) * 1984-04-19 1987-01-13 General Electric Company Control system for an electronically commutated motor
US4642536A (en) * 1984-04-19 1987-02-10 General Electric Company Control system for an electronically commutated motor, method of controlling such, method of controlling an electronically commutated motor and laundry apparatus
US4612486A (en) * 1985-04-19 1986-09-16 Itsuki Ban Semiconductor electric motor having a rotary transformer to excite a rotor
JP2003018879A (en) * 2001-06-28 2003-01-17 Toshiba Corp Washing machine and permanent magnet dc motor

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