JPS56157248A - Permanent magnet synchronizing motor - Google Patents

Permanent magnet synchronizing motor

Info

Publication number
JPS56157248A
JPS56157248A JP5782180A JP5782180A JPS56157248A JP S56157248 A JPS56157248 A JP S56157248A JP 5782180 A JP5782180 A JP 5782180A JP 5782180 A JP5782180 A JP 5782180A JP S56157248 A JPS56157248 A JP S56157248A
Authority
JP
Japan
Prior art keywords
shaft
magnets
case
permanent magnet
diameter
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
JP5782180A
Other languages
Japanese (ja)
Inventor
Koji Seshimo
Hideo Uzuhashi
Masayuki Hirata
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 JP5782180A priority Critical patent/JPS56157248A/en
Publication of JPS56157248A publication Critical patent/JPS56157248A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/278—Surface mounted magnets; Inset magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To simplify the manufacturing process by a method wherein the tile- shaped permanent magnets divided into plural numbers are integrated by a shaft with a step in a cylindrical guard case made of synthetic resin. CONSTITUTION:The outside diameter R2 of the permanent magnet 2 is made smaller than the inside diameter R1 of the guard case 1 containing fiber and meanwhile, the inside diameter R3 of the magnet 2 is made smaller than the outside diameter R4 or a part (a) of the shaft 3 with the step to be kept in the relation of R1-R2<R4-R3. When the part (a) of the shaft 3 is inserted within the inside diameter R3 of the magnets 2 in that state, the pluraity of the magnets expand outwardly, fill up a space (b) and moreover, the case 1 is expanded in the direction of the diameter. The larger the dimension of R4-R1 is made, the stronger the case 1, the magnets 2 and the shaft 3 are integratedly fixed. The gap between the stator and the permanent magnet can be reduced and the performance improvement can be contrived reducing a magnetic leakage by using the synthetic resin containing a nonmagnetic body for the guard case.
JP5782180A 1980-05-02 1980-05-02 Permanent magnet synchronizing motor Pending JPS56157248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5782180A JPS56157248A (en) 1980-05-02 1980-05-02 Permanent magnet synchronizing motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5782180A JPS56157248A (en) 1980-05-02 1980-05-02 Permanent magnet synchronizing motor

Publications (1)

Publication Number Publication Date
JPS56157248A true JPS56157248A (en) 1981-12-04

Family

ID=13066577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5782180A Pending JPS56157248A (en) 1980-05-02 1980-05-02 Permanent magnet synchronizing motor

Country Status (1)

Country Link
JP (1) JPS56157248A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02231945A (en) * 1989-02-06 1990-09-13 Franklin Electric Co Inc Method and apparatus for manufacture of permanent magnet rotor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020104B1 (en) * 1969-03-14 1975-07-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020104B1 (en) * 1969-03-14 1975-07-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02231945A (en) * 1989-02-06 1990-09-13 Franklin Electric Co Inc Method and apparatus for manufacture of permanent magnet rotor

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