JPS6419957A - Voice coil-motor - Google Patents

Voice coil-motor

Info

Publication number
JPS6419957A
JPS6419957A JP17416987A JP17416987A JPS6419957A JP S6419957 A JPS6419957 A JP S6419957A JP 17416987 A JP17416987 A JP 17416987A JP 17416987 A JP17416987 A JP 17416987A JP S6419957 A JPS6419957 A JP S6419957A
Authority
JP
Japan
Prior art keywords
yoke
shaped
grooves
center
center yoke
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
JP17416987A
Other languages
Japanese (ja)
Inventor
Tetsuji Kawasaki
Susumu Murata
Kazuya Nakayama
Toshiki Henmi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP17416987A priority Critical patent/JPS6419957A/en
Publication of JPS6419957A publication Critical patent/JPS6419957A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

PURPOSE:To increase driving force, and to quicken response by intermittently forming grooves along the direction of rectilinear propagation to an opposed surface to a permanent magnet of a yoke and burying cylindrical bodies consisting of a conductor into the grooves. CONSTITUTION:A center yoke 1a shaped by connecting the centers of one opposite sides of a yoke 1 is formed to the yoke 1, a cross section of which takes a square and which is formed to a square frame shape as a whole. Five U-shaped grooves 1b are formed intermittently along the axial direction of the center yoke 1a to the outer circumferential surface of the center yoke 1a. Band-shaped thin copper plates are wound into the U-shaped grooves 1b so as to be flatly buried, and each edge is joined mutually with silver solder or solder. Permanent magnets 3 are fixed onto the internal side faces of each opposite side parallel with the center yoke 1a in the yoke 1. Magnetic flux density in an air gap is increased, and eddy currents flowing through a cylindrical body prevent the inflow of AC magnetic flux to the yoke.
JP17416987A 1987-07-13 1987-07-13 Voice coil-motor Pending JPS6419957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17416987A JPS6419957A (en) 1987-07-13 1987-07-13 Voice coil-motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17416987A JPS6419957A (en) 1987-07-13 1987-07-13 Voice coil-motor

Publications (1)

Publication Number Publication Date
JPS6419957A true JPS6419957A (en) 1989-01-24

Family

ID=15973912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17416987A Pending JPS6419957A (en) 1987-07-13 1987-07-13 Voice coil-motor

Country Status (1)

Country Link
JP (1) JPS6419957A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01144351A (en) * 1987-11-30 1989-06-06 Matsushita Electric Ind Co Ltd Linear motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01144351A (en) * 1987-11-30 1989-06-06 Matsushita Electric Ind Co Ltd Linear motor

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