JPS618913U

JPS618913U - DC magnetic contactor

Info

Publication number: JPS618913U
Application number: JP9294484U
Authority: JP
Inventors: 幸太郎富岡; 功村山
Original assignee: 富士電機株式会社
Priority date: 1984-06-21
Filing date: 1984-06-21
Publication date: 1986-01-20
Also published as: JPH0338906Y2

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図ないし第５図はこの考案による常閉形直流電磁接
触器の一実施例を示す図で、第１図は接点部の縦断面図
、第２図は第１図の消弧装置拡大側面図、第３図は第２
図のＰ矢視図、第４図は固定接触子斜視図、第５図は消
弧装置の分解斜視図、第６図と第７図および第８図はそ
れぞれこの考案の異なる実施例を示す斜視図と正面図お
よび側面図、第９図ないし第１１図は従来の常閉形直流
電磁接触器の一例を示す図で、第９図は接点部の縦断面
図、第１０図はアーク駆動原理図、第１１図は第９図消
弧装置の分解斜視図である。２ａ，２ｂ・・・・」・主回路端子、３・・・・・・固
定接触子、３ａ，５ａ・・・・・・接点、４・・・・・
・連動杆、５，・・・・・・可動接触子、６・・・・・
・電磁石、訃・・・・・磁極板、１ｏ・・・・・・永久
磁石、１７・・・・・・消弧装置、１８・・・・・・絶
縁バリャ、１９・・・・・・係止爪、１９ｂ・・・・・
・突起、２２・・・・・・導体側バリャ部分。Figures 1 to 5 are diagrams showing an embodiment of a normally closed DC electromagnetic contactor according to this invention. Figure 1 is a longitudinal cross-sectional view of the contact portion, and Figure 2 is an enlarged side view of the arc extinguishing device of Figure 1. Figure 3 is the second
4 is a perspective view of the fixed contact, FIG. 5 is an exploded perspective view of the arc extinguishing device, and FIGS. 6, 7, and 8 each show different embodiments of this invention. A perspective view, a front view, a side view, and Figures 9 to 11 are views showing an example of a conventional normally closed DC magnetic contactor. Figure 9 is a longitudinal cross-sectional view of the contact portion, and Figure 10 is an arc drive principle. 11 is an exploded perspective view of the arc extinguishing device shown in FIG. 9. 2a, 2b...'' Main circuit terminal, 3... Fixed contact, 3a, 5a... Contact, 4...
・Interlocking rod, 5,... Movable contact, 6...
・Electromagnet, end...magnetic pole plate, 1o...permanent magnet, 17...arc extinguisher, 18...insulation barrier, 19... Locking claw, 19b...
・Protrusion, 22...Conductor side barrier part.

Claims

[Scope of utility model registration request]

(1) A U-shaped fixed contact that has main circuit terminals and is arranged at intervals from each other and is made up of a pair of U-shaped fixed contacts each equipped with a contact, and the fixed contact is supported so as to be able to reciprocate. a movable contact that is supported on one end of the interlocking rod and bridges between the contacts of the fixed contact; an electromagnet that drives the interlocking rod and separates the movable contact from the contact of the fixed contact; In a DC electromagnetic contactor equipped with an arc extinguishing device having a magnetic pole plate arranged to sandwich the contacts of a movable contactor and a fixed contactor and connected to each other via a permanent magnet, and whose opposing surfaces are covered with an insulating barrier. . A DC electromagnetic contactor, characterized in that the insulating barrier extends so as to cover the inside of the U-shaped bottom portion of the fixed contact and is fixed to the fixed contact.

(2) Utility Model Registration Scope of Claim 1 In the electromagnetic contactor according to claim 1, the arc extinguishing device includes both leg pieces in a U-shape in which a magnetic pole plate and a permanent magnet are attached to an insulating barrier and the magnetic pole plate is pressed from both sides. A DC electromagnetic contactor characterized in that both leg pieces have a locking claw that engages with the insulating barrier, and a coupling fitting that has a U-shaped protrusion on one edge that is an extension of the leg piece.