JPH0332402U

JPH0332402U -

Info

Publication number: JPH0332402U
Application number: JP9265689U
Authority: JP
Priority date: 1989-08-07
Filing date: 1989-08-07
Publication date: 1991-03-29

Description

[Brief explanation of drawings]

第１図は本考案の一実施例によるヒユーズ抵抗
器の斜視図、第２図は同ヒユーズ抵抗器の正常時
の状態を示す断面図、第３図は同ヒユーズ抵抗器
の過剰電流時の断線状態を示す断面図、第４図は
同ヒユーズ抵抗器にハウジングを設けて絶縁材料
で一体化した状態を示す断面図、第５図は本考案
の別の実施例によるヒユーズ抵抗器を示す断面図
、第６図は本考案による更に別の実施例によるヒ
ユーズ抵抗器の断面図、第７図は形状記憶合金を
利用した従来の電源スイツチの一例を示す説明図
、第８図は形状記憶合金を利用した従来の電源ス
イツチの他の例を示す説明図、第９図は形状記憶
合金を利用した従来の電源スイツチの更に他の例
を示す説明図である。図中、２０，２１……金属板、２０ａ，２１ａ
……端子部、２０ｂ，２１ｂ……接点、２２……
絶縁部材、２３……形状記憶樹脂板、２７……ハ
ウジング、２９……形状記憶合金部材である。 Fig. 1 is a perspective view of a fuse resistor according to an embodiment of the present invention, Fig. 2 is a sectional view showing the fuse resistor in its normal state, and Fig. 3 is a disconnection of the fuse resistor when an excessive current occurs. 4 is a sectional view showing the same fuse resistor provided with a housing and integrated with an insulating material; FIG. 5 is a sectional view showing a fuse resistor according to another embodiment of the present invention. , FIG. 6 is a cross-sectional view of a fuse resistor according to yet another embodiment of the present invention, FIG. 7 is an explanatory diagram showing an example of a conventional power switch using a shape memory alloy, and FIG. 8 is a diagram showing an example of a conventional power switch using a shape memory alloy. FIG. 9 is an explanatory diagram showing still another example of the conventional power switch using a shape memory alloy. In the figure, 20, 21...metal plate, 20a, 21a
...Terminal section, 20b, 21b...Contact, 22...
Insulating member, 23... Shape memory resin plate, 27... Housing, 29... Shape memory alloy member.

Claims

[Claims for Utility Model Registration] (1) A pair of electrode members having a terminal portion connected to an electric circuit and a contact point for opening and closing the electric circuit are brought into contact and separated by elastically biasing the contacts in the direction in which the contacts open. A temperature sensing member made of a shape memory resin is attached to at least one of the electrode members, and the temperature sensing member displaces the electrode member so that the contact is closed, causing an overcurrent to flow in the electric circuit. A fuse resistor using a shape memory resin, characterized in that when the electrode member generates heat, the temperature sensing member is deformed by the heat and the contact point is opened. (2) The electrode member is composed of a pair of metal plates having a terminal portion and a contact, and these metal plates are assembled via an insulating member so that the contact can be connected to and separated from the metal plate, and the elasticity of at least one of the metal plates is used. the temperature sensing member is attached to and assembled to at least one elastic metal plate;
2. A fuse resistor according to claim 1, wherein said temperature sensing member bends said at least one metal plate to close said contact. (3) The electrode member is composed of a pair of metal plates having a terminal portion and a contact, and these metal plates are assembled via an insulating member so that the contact can be connected to and separated from the metal plate, and the elasticity of at least one of the metal plates is used. 2. The fuse resistor according to claim 1, wherein the temperature sensing member is made into a clip shape and the pair of metal plates are sandwiched between the temperature sensing members to close the contacts.