JPS5456112A - Synchronous motor - Google Patents

Synchronous motor

Info

Publication number
JPS5456112A
JPS5456112A JP12241377A JP12241377A JPS5456112A JP S5456112 A JPS5456112 A JP S5456112A JP 12241377 A JP12241377 A JP 12241377A JP 12241377 A JP12241377 A JP 12241377A JP S5456112 A JPS5456112 A JP S5456112A
Authority
JP
Japan
Prior art keywords
stator
pole
poles
width
rotor
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
JP12241377A
Other languages
Japanese (ja)
Inventor
Etsuro Hirose
Shigeharu Nakano
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 JP12241377A priority Critical patent/JPS5456112A/en
Publication of JPS5456112A publication Critical patent/JPS5456112A/en
Pending legal-status Critical Current

Links

Landscapes

  • Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

PURPOSE: To heighten a productivity and reliability, by providing a proportion, in a specific range, of pole width of the stator displacement pole with respect to that of the stator reference pole in a synchronous motor of inductor type.
CONSTITUTION: For a permanent magnet rotor 3, constructed with N.S poles in the peripheral part alternately and symmetrically magnetized, stator poles are arranged not symmetrically, when determined width of the stator reference poles 2b, 2d, 6b and 6d for L1, with width L2 of the stator displacement poles 2a, 2c being made in a range of L1 to 1.5L1, and with width L3 of the stator displacement poles 6a, 6c being similarly made in a range of L1/1.5 to L1. At no excitation, the pole of the rotor 3 will stand still being displaced by an angle of θ1 from center of the stator reference pole. When excited in the same polarity as each facing and neighboring pole of the rotor 3 by a current of half cycle at the time of power source closing, a force of repulsion between the rotor 3 and the stator 2, 6 will provide a rotation in C. W. direction R
COPYRIGHT: (C)1979,JPO&Japio
JP12241377A 1977-10-14 1977-10-14 Synchronous motor Pending JPS5456112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12241377A JPS5456112A (en) 1977-10-14 1977-10-14 Synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12241377A JPS5456112A (en) 1977-10-14 1977-10-14 Synchronous motor

Publications (1)

Publication Number Publication Date
JPS5456112A true JPS5456112A (en) 1979-05-04

Family

ID=14835187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12241377A Pending JPS5456112A (en) 1977-10-14 1977-10-14 Synchronous motor

Country Status (1)

Country Link
JP (1) JPS5456112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769567A (en) * 1986-06-23 1988-09-06 Tamagawa Seiki Kabushiki Kaisha Brushless DC motor with cogging reduction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769567A (en) * 1986-06-23 1988-09-06 Tamagawa Seiki Kabushiki Kaisha Brushless DC motor with cogging reduction

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