JPS60163709U

JPS60163709U - electromagnet device

Info

Publication number: JPS60163709U
Application number: JP5090884U
Authority: JP
Inventors: 松下　英敏; 西村　広海; 小坂　憲一
Original assignee: 松下電工株式会社
Priority date: 1984-04-06
Filing date: 1984-04-06
Publication date: 1985-10-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は典型的な先行技術の電磁石装置１の断゛面図、
第２図は第１図に用いられる可動鉄心１の　　゛吸引力
特性およびばね負荷特性を示すグラフ、第３図は本発明
の一実施例の電磁石装置２０の断面図、第４図は第３図
の分解斜視図、第５図は本発明の一実施例の電磁石装置
２０に用いられる可動鉄心２１の吸引力特性を示すグラ
フである。１．２０・・・電磁石装置、２１・・・可動鉄心、２２
、・・・コイル枠、２３・・・永久磁石、２４・・・固
定鉄心、？、　８．２５．２６・・・継鉄、３０，３２
・・・極部、　　　　−３１・・・小径部、４１・・・
電磁コイル、φ１．φ２゜φ３．φ４・・・磁束経路、
Ａ、　Ｂ、　Ｃ・・・磁気空隙。　　。FIG. 1 is a cross-sectional view of a typical prior art electromagnetic device 1;
FIG. 2 is a graph showing the attractive force characteristics and spring load characteristics of the movable iron core 1 used in FIG. The exploded perspective view of FIG. 5 is a graph showing the attractive force characteristics of the movable iron core 21 used in the electromagnet device 20 of one embodiment of the present invention. 1.20...Electromagnetic device, 21...Movable iron core, 22
,...Coil frame, 23...Permanent magnet, 24...Fixed iron core, ? , 8.25.26...Yoke, 30,32
...Extreme part, -31...Small diameter part, 41...
Electromagnetic coil, φ1. φ2゜φ3. φ4...magnetic flux path,
A, B, C...magnetic gap. .

Claims

[Claims for Utility Model Registration] A movable iron core made of a magnetic material, disposed so as to be freely displaceable in the longitudinal direction, and having a first pole part and a second pole part formed at one end and an intermediate part; A fixed core made of a magnetic material facing the first pole of the movable core, a coil wound around the outer periphery of the movable core, and a coil fixed core, etc., with an open end extending outside the fixed core in the radial direction. A roughly U-shaped first yoke located on one side, one end facing between the first and second poles of the movable core, and the other end abutting the first yoke. a plurality of second yokes, one end abutting the fixed iron core and the other end contacting the first yoke;
and a plurality of permanent magnets that are magnetically coupled to each other by contacting the yoke, and the magnetic flux of the permanent magnets is distributed between the permanent magnets, a fixed iron core, a movable iron core,
The magnetic flux of the coil flows through a magnetic closed circuit consisting of a yoke to attract the movable iron core to the fixed iron core, and the magnetic flux of the coil flows in the opposite direction to the magnetic flux of the permanent magnet, separating the movable iron core from the fixed iron core, and furthermore, this separation causes An electromagnetic device characterized by switching the flow to a magnetic closed circuit consisting of a movable iron core and a yoke.