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公开(公告)号：US4028656A
公开(公告)日：1977-06-07
申请号：US633487
申请日：1975-11-19
IPC分类号： H01H69/02 , H01H85/165 , H01H85/20
CPC分类号： H01H85/165 , H01H69/02 , Y10S174/08
摘要： A cylindrical sleeve having annular flanges is formed of irradiated terpolymers of ethylene, propylene, and a diene monomer (EPDM) material. The sleeve is then expanded, but the irradiated EPDM material has a "memory" which tends to cause it to return to its original dimension when heated to a predetermined elevated temperature. The expanded sleeve is positioned over the body of a current limiting fuse and heated so that the sleeve shrinks back to tend to assume its original dimension thereby sealing the sleeve around the body of the fuse. The inside surface of the sleeve may be coated with a thermosetting plastic sealing coating which softens at the elevated temperature further aiding in sealing between the fuse body and the sleeve. The sleeve may be heated in a vacuum oven to ensure that air is not trapped between the body of the fuse and the sleeve.
摘要翻译： 具有环形凸缘的圆柱形套筒由乙烯，丙烯和二烯单体（EPDM）材料的辐照三元共聚物形成。 然后将套筒膨胀，但被照射的EPDM材料具有“记忆”，当被加热至预定的高温时，其倾向于使其回到其原始尺寸。 膨胀的套筒定位在限流熔断器的主体上方并被加热，使得套筒收缩以倾向于呈现其原始尺寸，从而将套管密封在保险丝的主体周围。 套筒的内表面可以涂覆有热固性塑料密封涂层，其在升高的温度下软化，进一步有助于保险丝体和套筒之间的密封。 套管可以在真空炉中加热，以确保空气不会被夹在保险丝的主体和套筒之间。
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公开(公告)号：US4313100A
公开(公告)日：1982-01-26
申请号：US132922
申请日：1980-03-24
申请人： E. William Schmunk
发明人： E. William Schmunk
CPC分类号： H01H85/43
摘要： A single-vented fuse tube has a bore lined with an arc-extinguishing material. A movable contact moves away from a stationary contact in the bore and toward and out of an exhaust opening. An arc established between the contacts causes de-ionizing arc-extinguishing gases to evolve from the bore. The gas is exhausted from the exhaust opening. The bore is mildly tapered--to about 1.degree. to 3.degree. of included angle--so that its greatest diameter is at the exhaust opening. The included angle and extent of the taper are sufficient to obviate stagnation of the gases evolved deep within the bore and clogging of the bore.
摘要翻译： 单通道保险丝管具有内衬有灭弧材料的孔。 可移动的接触件从孔中的固定触头移开并且朝向和离开排气口。 在触点之间建立的电弧导致去离子灭弧气体从孔中放出。 气体从排气口排出。 孔稍微渐缩 - 约1至3度的夹角，使得其最大直径在排气口处。 锥形的夹角和尺寸足以消除深孔内沉积的气体停滞并堵塞孔。
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