公开(公告)号：US3781737A

公开(公告)日：1973-12-25

申请号：US3781737D

申请日：1973-02-20

申请人： ESSEX INTERNATIONAL INC

发明人： HENRY W

IPC分类号： H01H1/16 ,  H01H37/76 ,  H01H

CPC分类号： H01H1/16 ,  H01H37/765

摘要： A thermal circuit protector for automatically opening a circuit when the ambient temperature becomes too high. The protector comprises a fusible pellet disposed inside a conductive case. A first conductor electrically contacts the case while a second conductor is electrically insulated from the case. Contact is made from the first conductor to the second by three electrically conductive balls which contact the case and the second conductor. A first spring maintains the electrical contact between the case, the balls and the second conductor. A second spring acts to break the contact between the case, the balls and the second conductor when the fusible pellet melts.

摘要翻译： 一个用于在环境温度过高时自动打开电路的热电路保护器。 保护器包括设置在导电壳内的易熔片。 第一导体与壳体电接触，而第二导体与壳体电绝缘。 通过与壳体和第二导体接触的三个导电球从第一导体到第二导体接触。 第一弹簧保持壳体，球和第二导体之间的电接触。 当熔丝熔化时，第二弹簧用于破坏外壳，滚珠和第二导体之间的接触。