公开(公告)号：US5153553A

公开(公告)日：1992-10-06

申请号：US792153

申请日：1991-11-08

申请人： William E. Ruehl ,  Bjarne Frederiksen ,  John Alice ,  E. Grant Swick

发明人： William E. Ruehl ,  Bjarne Frederiksen ,  John Alice ,  E. Grant Swick

IPC分类号： H01H85/00 ,  H01H85/175 ,  H01H85/38

CPC分类号： H01H85/1755 ,  H01H85/38 ,  H01H2085/383 ,  H01H85/0056 ,  H01H85/0082

摘要： A fuse having a rated current for protecting electric or electronic circuitry comprises a body having a blow chamber. A fusible element is contained within the body and extends through the blow chamber. A contact is disposed on the body electrically connected to the fusible element for making an electrical connection between the fuse and the circuitry. The blow chamber is sealed around the fusible element so that thermal energy in the fusible element can increase within the blow chamber for causing the element to open when an elevated current is applied to the element. The blow chamber is sufficiently sealed around the element for retaining a pressure created therewithin by vaporization of a portion of the element; that pressure is sufficient to cause an arc produced by fusion of the element to extinguish. The body is of sufficient strength to contain the pressure within the blow chamber for allowing the fuse to fail gracefully. Thermal conductive cement is disposed about the entire fusible element without the blow chamber for preventing the fusible element from opening without the blow chamber before opening within the blow chamber.

摘要翻译： 具有用于保护电气或电子电路的额定电流的保险丝包括具有吹风室的主体。 可熔元件容纳在主体内并延伸穿过吹气室。 接触件设置在电连接到可熔元件的主体上，用于在熔断器和电路之间进行电连接。 吹塑室被密封在可熔元件周围，使得可熔元件中的热能在吹塑室内增加，以便在向元件施加升高的电流时导致元件打开。 吹塑室围绕元件充分密封，用于保持通过元件的一部分的蒸发而在其中产生的压力; 该压力足以引起通过该元件的熔化而产生的电弧而熄灭。 本体具有足够的强度来容纳吹塑室内的压力，以使保险丝能够正常地失效。 导热性水泥配置在整个可熔元件周围，而没有吹气室，用于防止可熔元件在吹气室内打开之前没有吹气室而打开。