Title:
ELECTROMAGNETIC ACTUATOR
Document Type and Number:
Japanese Patent JPS61167367
Kind Code:
A
Abstract:
PURPOSE:To reduce the ampere-turn of a winding for driving a movable core by connecting a permanent magnet with opposed pole pieces of the core and connecting a stationary core mounted with a winding through a branch magnetic path. CONSTITUTION:A permanent magnet 5 is mounted on a frame-shaped stator core 1, and a pole piece 6 is provided at the end. A branching pole 7 having a suitable magnetic resistance is provided between the third face 6b of the piece 6 and the core 1, the end 3a of the core 1 is opposed to the second face 6a, and a spring 3 is interposed therebetween. Further, an electric winding 4 is wound on the stator frame 1. Thus, when the winding 4 is energized, a magnetic flux phii is generated in a passage of the frame 1-the branching magnetic path 7-the pole piece 6. Accordingly, a movable core 2 can be driven laterally by the relationship between the direction of the magnetic flux phii and the direction of the magnetic flux phia generated at the magnet 5.
Inventors:
KAMITSUBARA TSUNEO
Application Number:
JP659985A
Publication Date:
July 29, 1986
Filing Date:
January 17, 1985
Export Citation:
Assignee:
MITSUBISHI MINING & CEMENT CO
IWASAKI ELECTRONICS
IWASAKI ELECTRONICS
International Classes:
H02K33/02; H01F7/16; (IPC1-7): H02K33/02
Domestic Patent References:
| JPS5846861A | 1983-03-18 | |||
| JPS58154306A | 1983-09-13 | |||
| JPS462895A |
Attorney, Agent or Firm:
Yoshio Kosugi (1 person outside)