JPS55106064A - Fixing of permanent magnet field - Google Patents

Fixing of permanent magnet field

Info

Publication number
JPS55106064A
JPS55106064A JP1174779A JP1174779A JPS55106064A JP S55106064 A JPS55106064 A JP S55106064A JP 1174779 A JP1174779 A JP 1174779A JP 1174779 A JP1174779 A JP 1174779A JP S55106064 A JPS55106064 A JP S55106064A
Authority
JP
Japan
Prior art keywords
permanent magnet
yokes
retaining plate
welding
pole pieces
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
JP1174779A
Other languages
Japanese (ja)
Other versions
JPS602865B2 (en
Inventor
Masahiko Hishiyama
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP1174779A priority Critical patent/JPS602865B2/en
Publication of JPS55106064A publication Critical patent/JPS55106064A/en
Publication of JPS602865B2 publication Critical patent/JPS602865B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Dc Machiner (AREA)

Abstract

PURPOSE: To facilitate the workability eliminating adverse effect upon the permanent magnet due to welding heat by a method wherein a retaining plate is mounted across the sides of opposing pole pieces, and the permanent magnet is held by pinching between the yokes while the retaining plate and the magnetic poles are fillet- welded.
CONSTITUTION: A magnetic pole piece 1 is brought into contact with the tip of a permanent magnet 2 while a retaining plate 4 made of a non-magnetic metal is done so with both sides of magnetic poles 1 as opposed. Then, the surface 4a of the retaining plate 4 is pad welded with the surface 1a of the magnetic pole pieces so that the thermal reduction force generated during the cooling of the weld beads grasps the permanent magnet 2 between the magnetic pole pieces 1 and the yokes. With such an arrangement, the absence of welding for the permanent magnet 2 eliminates adverse effect due to welding heat. In addition, lack of the welding for the yokes enalbes the use of a cheap ductile cast iron for the material of the yokes.
COPYRIGHT: (C)1980,JPO&Japio
JP1174779A 1979-02-02 1979-02-02 Fixing method of permanent magnet field Expired JPS602865B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1174779A JPS602865B2 (en) 1979-02-02 1979-02-02 Fixing method of permanent magnet field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1174779A JPS602865B2 (en) 1979-02-02 1979-02-02 Fixing method of permanent magnet field

Publications (2)

Publication Number Publication Date
JPS55106064A true JPS55106064A (en) 1980-08-14
JPS602865B2 JPS602865B2 (en) 1985-01-24

Family

ID=11786605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1174779A Expired JPS602865B2 (en) 1979-02-02 1979-02-02 Fixing method of permanent magnet field

Country Status (1)

Country Link
JP (1) JPS602865B2 (en)

Also Published As

Publication number Publication date
JPS602865B2 (en) 1985-01-24

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