JPS6099752U

JPS6099752U - thermo switch

Info

Publication number: JPS6099752U
Application number: JP19231783U
Authority: JP
Inventors: 正明市川; 吉岡　秀興
Original assignee: 松下電工株式会社
Priority date: 1983-12-14
Filing date: 1983-12-14
Publication date: 1985-07-08

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図は従来例の斜視図、第２図は同上の要部の動作説
明図、第３図は本考案の一実施例の斜視図、第４図は同
上の一部破断省略した正常状態の側面図、第５図は同上
の一部破断省略した過電流□検知時の側面図、第６図は
同上の一部破断省略した異常温度の検知時の側面図、第
７図は本考案の一実施例の一部破断した斜視図であり、
１は可動ばね板、１ａは第１の可動ばね、１ｂは第１の
可動ばね、２は基台、２ｂは段差壁、４ａｔ４”ｔ４ｂ
は可動接点、５ａｔ　　５ａ’ｔ　５ｂは固定接点、８
は非復帰動作ばね、９は細い部位、１０は突起　　　１
である。Fig. 1 is a perspective view of the conventional example, Fig. 2 is an explanatory diagram of the operation of the main parts of the same as above, Fig. 3 is a perspective view of an embodiment of the present invention, and Fig. 4 is a normal state of the same as above with some parts omitted. Fig. 5 is a side view of the same as above when overcurrent □ is detected with some breaks omitted, Fig. 6 is a side view of the same as above when abnormal temperature is detected with some breaks omitted, and Fig. 7 is a side view of the present invention. FIG. 2 is a partially cutaway perspective view of one embodiment of the invention;
1 is a movable spring plate, 1a is a first movable spring, 1b is a first movable spring, 2 is a base, 2b is a step wall, 4at4"t4b
is a movable contact, 5at 5a't 5b is a fixed contact, 8
1 is a non-returning action spring, 9 is a thin part, 10 is a projection 1
It is.

Claims

[Scope of utility model registration request]

The center piece of the movable spring plate formed in a U-shape is fixed at one end of the base, and movable contacts are provided on the lower surfaces of the free ends of both sides of the movable spring plate, and these both sides are connected to the first movable side. spring,
A second movable spring is provided at the other end of the base, and a fixed contact is provided corresponding to each movable contact and contacts the movable contact with the elastic force of each movable spring, and a fixed contact is provided on the other end side of the base to contact the movable contact with the elastic force of each movable spring. In between, there is a first bimetal plate that reverses when the ambient temperature rises abnormally and pushes the free end side of the first movable spring upward, and a second movable plate that reverses at a predetermined upper limit of temperature lower than the abnormal temperature. A second bimetallic plate that pushes the free end of the spring upward and returns to its original state at a predetermined lower limit of temperature is arranged, and the free end of the first movable spring is provided with a step wall erected on the base when it moves upward. In a thermoswitch which is provided with a non-returning means that engages with a step and prevents the return, and which conducts electricity between the fixed contacts, a narrow part of the first movable spring extends slightly backward from the part where the movable contact is provided. 1. A thermoswitch comprising: a protrusion protruding from the upper surface of the base, the upper end of which abuts the lower surface of the narrow portion at a position slightly forward of the base thereof.