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32. 发明授权

US4065741A Thermal fuse with a fusible temperature sensitive pellet 失效
标题翻译：带有易熔敏感颗粒的保险丝
公开(公告)号：US4065741A
公开(公告)日：1977-12-27
申请号：US782415
申请日：1977-03-29
申请人： Yoshimasa Sakamoto , Sadayoshi Iwanari , Osamu Umene
发明人： Yoshimasa Sakamoto , Sadayoshi Iwanari , Osamu Umene
IPC分类号： H01H37/70 , H01H37/76
CPC分类号： H01H37/70 , H01H37/765 , H01H2037/769
摘要： The present thermal fuse comprises an electrically and thermally conductive housing for hermetically sealing the switching parts and a fusible, temperature sensitive pellet in said housing. The pellet is preferably molded to have a cylindrical shape or body provided with one cavity or several cavities and assembled in the housing, whereby the outside pellet surface contacts the inner surface of the housing. The cavity or cavities take up about 5 to 50 percent of the whole cross sectional area of the pellet. The pellet is made of a mixture of organic and inorganic substances preferably so as to accelerate the fusing function of the pellet when the temperature rises above the melting point of the major component of the organic materials. The cavity or cavities of the pellet greatly facilitate a large and rapid shrinkage in volume and the addition of inorganic substance provides a large thermal conductivity of the pellet, whereby a rapid and exact fuse action is accomplished.
摘要翻译：本发明的热熔丝包括用于气密地密封开关部件的电导热导电壳体和在所述壳体中的可熔，温度敏感的芯片。颗粒优选地被模制成具有设置有一个空腔或多个空腔并且组装在壳体中的圆柱形或主体，由此外部颗粒表面接触壳体的内表面。空腔或空腔占颗粒整个横截面积的约5％至50％。颗粒由有机和无机物质的混合物制成，优选当温度升高到有机材料的主要成分的熔点以上时，加速颗粒的熔融功能。颗粒的空腔或空腔极大地促进了体积的大量和快速收缩，并且添加无机物质提供了颗粒的大的导热性，从而实现了快速且精确的保险丝动作。

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