JPH0269441U

JPH0269441U -

Info

Publication number: JPH0269441U
Application number: JP14876888U
Authority: JP
Priority date: 1988-11-15
Filing date: 1988-11-15
Publication date: 1990-05-25

Description

[Brief explanation of drawings]

第１図ａ，ｂは本考案による感温スイツチの一
例を示す斜視図、第２図ａ，ｂは第１図ａのＡ−
Ａ断面図、第３図は従来の感温スイツチの断面図
である。１，２……感温スイツチ、３……中心電極、４
……側部電極、５……形状記憶合金圧縮コイルバ
ネ、６……スペーサ、７……感温部、８……絶縁
押し具、９……電極部、１０……絶縁ケース、１
１……蓋（シール板）。 Figures 1a and b are perspective views showing an example of a temperature-sensitive switch according to the present invention, and Figures 2a and b are A--A in Figure 1a.
A sectional view and FIG. 3 are sectional views of a conventional temperature-sensitive switch. 1, 2... Temperature-sensitive switch, 3... Center electrode, 4
... Side electrode, 5 ... Shape memory alloy compression coil spring, 6 ... Spacer, 7 ... Temperature sensing part, 8 ... Insulating pusher, 9 ... Electrode part, 10 ... Insulating case, 1
1...Lid (seal plate).

Claims

[Scope of utility model registration request]

A temperature sensing part, an insulated pusher, and an electrode part are arranged in series inside the temperature sensing case, and the temperature sensing part is composed of a shape memory alloy compression coil spring and a spacer having a flange part at one end of a rod-shaped part. , the shape memory alloy compression coil spring has the bar-shaped part of the spacer inserted inside it, both ends of which are in contact with the flange surface of the spacer and the bottom surface of the temperature-sensitive case, and the electrode part is shaped like a disc spring. The spring electrode is composed of a spring electrode, side electrodes and a center electrode attached to an insulating case, and the center part of the convex side of the spring electrode is in contact with the insulating pusher, and the outer peripheral part of the concave side of the spring electrode is in contact with the insulating pusher. are in slidable contact with the side electrodes, and the insulating pusher disposed between the temperature-sensing part and the electrode part has one end surface that is planar and is in contact with the spacer. It is in surface contact with the flange surface, and the other end surface is spherical and in point contact with the center part of the convex side of the spring electrode,
A temperature-sensitive switch characterized in that a spring electrode and a center electrode come into contact with each other and separate from each other in accordance with the expansion and contraction of a shape memory alloy compression coil spring.