JPS60136454U

JPS60136454U - circuit break

Info

Publication number: JPS60136454U
Application number: JP2603084U
Authority: JP
Inventors: 谷辺　俊幸; 洋藤井; 高塚　卓雄; 久常　文之; 清美山本
Original assignee: 三菱電機株式会社
Priority date: 1984-02-23
Filing date: 1984-02-23
Publication date: 1985-09-10

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図はこの考案による回路しゃ断器の一例を示す正面
断面図、第２図ａ、　ｂは熱動引きはずし機構を示し、
ａは定常状態、ｂは過電流通電時の状態を示す図、第３
図ａ、　ｂは熱動引きはずし機、構の他の実施例で、ａ
は定常状態、ｂは過電流通電時の状態を示す図である。６・・・固定接点、９・・・可動接点、１６・・・トグ
ルリンク機構、１９・・・フレドル、？４・・・形状記
憶合金からなるアーム、２６・・・ラッチ。なお、図中
、同　　　・−符号は同一または相当部分を示す。Figure 1 is a front sectional view showing an example of a circuit breaker according to this invention, Figures 2a and 2b show a thermal tripping mechanism,
Figure a shows the steady state and b shows the state when overcurrent is applied.
Figures a and b show other embodiments of the thermal tripping mechanism;
1 is a diagram showing a steady state, and b is a diagram showing a state when an overcurrent is applied. 6...Fixed contact, 9...Movable contact, 16...Toggle link mechanism, 19...Fredl, ? 4... Arm made of shape memory alloy, 26... Latch. In the figures, the same and - symbols indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

An arm made of a shape memory alloy, a latch driven by the arm, a ladle that can be engaged with and detached from the latch, a toggle link mechanism that interlocks with the ladle, and contacts that are opened and closed by the operation of the toggle link mechanism. A circuit breaker, characterized in that when an overcurrent is applied, the latch is driven by deformation of the arm made of the shape memory alloy, and the contact is opened by releasing the hoya with the fredle.