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    • 3. 发明专利
    • Overheat protection circuit
    • 过度保护电路
    • JP2014132819A
    • 2014-07-17
    • JP2013259923
    • 2013-12-17
    • Thermic Geraetebau Gmbhサーミク ゲラーテバウ ゲーエムベーハー
    • HANS-CHRISTIAN LIEHRHOFSAESS MARCEL P
    • H02H5/04H01H37/54
    • H02H5/047H01H9/541H01H37/002H01H37/5418H01H37/5427H01H2037/5463H02H5/04
    • PROBLEM TO BE SOLVED: To provide an overheat protection circuit which protects an electrical apparatus in which life of a temperature dependence switch and/or switching electric power have/has been improved with easy designing and an inexpensive method.SOLUTION: An overheat protection circuit 42 for protecting an electrical apparatus 46 has: a temperature dependence switch 10 having a switching mechanism 11, and an electric current transmission element 24 which is arranged in the switching mechanism 11 and has two receiving contacts 27 and 28 which are electrically connected with each other; and a semiconductor valve 41 in which the receiving contacts are connected to two fixed contacts 31 and 32 on the basis of temperature, which has two electric current terminals 47 and 48 and a control input 49 and can control for AC voltage. Each of the two electric current terminals 47 and 48 is connected to one of connection terminals 39 and 40, and the control input 49 is electrically connected to the receiving contacts 27 and 28 of an electric current transmission element 24 through the switching mechanism 11, when at least the temperature dependence switch 10 is closed.
    • 要解决的问题:提供一种过热保护电路,其通过容易的设计和廉价的方法来保护温度依赖性开关和/或开关电力的寿命已经得到改善的电气设备。解决方案:过热保护电路42 用于保护电气设备46具有:具有开关机构11的温度依赖性开关10和布置在开关机构11中并具有彼此电连接的两个接收触点27和28的电流传输元件24; 以及半导体阀41,其中接收触点基于温度连接到两个固定触点31和32,温度具有两个电流端子47和48以及控制输入49,并且可以控制交流电压。 两个电流端子47和48中的每一个连接到连接端子39和40中的一个,并且控制输入端49通过开关机构11电连接到电流传输元件24的接收触点27和28,当 至少温度依赖性开关10关闭。