JPS5947938U

JPS5947938U - vacuum switch

Info

Publication number: JPS5947938U
Application number: JP14292982U
Authority: JP
Inventors: 西迫　静隆; 平木　春海
Original assignee: 三菱電機株式会社
Priority date: 1982-09-21
Filing date: 1982-09-21
Publication date: 1984-03-30

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 the drawing]

第１図は従来の真空開閉器を示す一部断面側面図、第２
図は第１図の正面図、第３．４図はそれぞれ第１図の部
分拡大図、第５〜７図は本考案の一実施例による真空開
閉器を示すもので、第５図　・は正面図、第６図は第５
図の左側面断面図、第７図は第５図での接点開路状態に
おける動作を説明する一部拡大図である。１・・・真空バルブ、５・・・固定接点、６・・・可動
接点、１３・・・操作棒、２１・・・可動鉄心、２２・
・・電磁石、２８・・・操作腕、３０．３２・・・軸、
３１・・・クロスバ−１３３・・・引きはずしばね、な
お、図中、同一符号は同−又は相当部分を示す。に雪ト“ ２６２７１　　＼　　）２７　２６　４Figure 1 is a partially sectional side view showing a conventional vacuum switch;
The figure is a front view of Fig. 1, Figs. 3 and 4 are partially enlarged views of Fig. 1, and Figs. 5 to 7 show a vacuum switch according to an embodiment of the present invention. Front view, Figure 6 is the 5th
The left side cross-sectional view of the figure and FIG. 7 are partially enlarged views illustrating the operation in the open state of the contacts in FIG. 5. DESCRIPTION OF SYMBOLS 1... Vacuum valve, 5... Fixed contact, 6... Movable contact, 13... Operating rod, 21... Movable iron core, 22...
...Electromagnet, 28...Operation arm, 30.32...Axis,
31...Cross bar 133...Trip spring In the drawings, the same reference numerals indicate the same or corresponding parts. 2627 1 \ ) 27 26 4

Claims

[Scope of utility model registration request]

(1) A crossbar that engages with the movable core of an electromagnet and rotates 1 Engages with the movable part of the vacuum valve, and when the electromagnet is energized, the crossbar is disengaged from the crossbar and rotates, causing the movable part to rotate. An operating arm that biases the vacuum valve in the closing direction, a trip spring that engages with the crossbar and has a biasing force in the normally opening direction of the vacuum valve, and separate fulcrum shafts are provided for the crossbar and the operating arm, respectively. A vacuum switch characterized in that, when the electromagnet is demagnetized, the accumulated rotational energy of the crossbar engaged with the trip spring is transmitted to the operating arm.

(2) The vacuum switch according to claim 1, which is a registered utility model, characterized in that, when the vacuum valve is in a closed state, there is a gap in the engagement portion between the operating arm and the crossbar.