JPS5661104A - Plastic magnet with sleeve and manufacture thereof - Google Patents

Plastic magnet with sleeve and manufacture thereof

Info

Publication number
JPS5661104A
JPS5661104A JP13728779A JP13728779A JPS5661104A JP S5661104 A JPS5661104 A JP S5661104A JP 13728779 A JP13728779 A JP 13728779A JP 13728779 A JP13728779 A JP 13728779A JP S5661104 A JPS5661104 A JP S5661104A
Authority
JP
Japan
Prior art keywords
sleeve
plastic magnet
shaft
mold
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.)
Granted
Application number
JP13728779A
Other languages
Japanese (ja)
Other versions
JPS60932B2 (en
Inventor
Hiroomi Takemoto
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP13728779A priority Critical patent/JPS60932B2/en
Publication of JPS5661104A publication Critical patent/JPS5661104A/en
Publication of JPS60932B2 publication Critical patent/JPS60932B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To prevent the axial vibrations and cracks during the rotation by providing the sleeve in the central hole of an annular plastic magnet. CONSTITUTION:The metal sleeve 3 is fixed to a recess 2 by using cylindrical metal mold 1 having the circular recess 2 at the center of the bottom. A material, wherein thermosetting resin is blended with magnetic powder, a curing agent, and a mold release agent, is injected, compressed and formed by a mold 5. The formed product with the sleeve 3 is taken out, and a shaft 6 is pressed in. Then, a plurality of N and S poles are alternately provided around the outer periphery of the resin, thereby the plastic magnet 7 is obtained. In this constitution, since the magnet parts and the metal sleeve are incorporated to form one body beforehand, and the shaft is pressed in the sleeve, the excessive force is not directly applied to the plastic part at the time of the compression. Therefore, the plastic magnet is not damaged, and the axial vibration during the rotation can be prevented by the compression of the shaft.
JP13728779A 1979-10-24 1979-10-24 Plastic magnet with sleeve and manufacturing method thereof Expired JPS60932B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13728779A JPS60932B2 (en) 1979-10-24 1979-10-24 Plastic magnet with sleeve and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13728779A JPS60932B2 (en) 1979-10-24 1979-10-24 Plastic magnet with sleeve and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JPS5661104A true JPS5661104A (en) 1981-05-26
JPS60932B2 JPS60932B2 (en) 1985-01-11

Family

ID=15195148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13728779A Expired JPS60932B2 (en) 1979-10-24 1979-10-24 Plastic magnet with sleeve and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JPS60932B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136916A (en) * 1983-01-26 1984-08-06 Seiko Epson Corp Manufacture of permanent magnet
US5229738A (en) * 1987-06-16 1993-07-20 Kinetron B.V. Multipolar rotor
US10175062B2 (en) 2015-01-23 2019-01-08 Infineon Technologies Ag Out of shaft magnetic angle sensing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136916A (en) * 1983-01-26 1984-08-06 Seiko Epson Corp Manufacture of permanent magnet
US5229738A (en) * 1987-06-16 1993-07-20 Kinetron B.V. Multipolar rotor
US10175062B2 (en) 2015-01-23 2019-01-08 Infineon Technologies Ag Out of shaft magnetic angle sensing system

Also Published As

Publication number Publication date
JPS60932B2 (en) 1985-01-11

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