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    • 1. 发明申请
    • ELECTRO THERMAL FUSE
    • WO2020112031A1
    • 2020-06-04
    • PCT/SI2018/000026
    • 2018-12-05
    • RAZVOJNI CENTER ENEM NOVI MATERIALI D.O.O.
    • LEBAR, BraneKOS, Darko
    • H01H85/08H01H85/36
    • The underlying problem of the invention is how to create such electric thermal fuse, in which the electric circuit through the fuse is interrupted in a shortest possible time, as soon as even relatively high voltage or current is exceed, and regardless to position/orientation of the fuse, while at the same time it should also be assured that each generated electric arc, whenever occurs, would have any essential impact neither to the fuse nor to each surrounding area in the adjacency thereof. The invention provides that a tubular casing (1) of such fuse consists of ceramics, and each of said contact members (110, 120) is furnished with at least approximately centrally arranged throughout passage (111, 121), so that the electric conductor (2) is inserted through said passages (111, 121) within said contact members (110, 120) and is by means of solder (3, 3 '), which is located on the external side of the fuse, firmly and electric conductively connected with each of said contact members (110, 120), wherein said conductor (2) is in the one terminal area of the fuse extended and ended with appropriate thicker portion (20), so that a spring (4) is placed around said conductor (2) and is inserted between said thicker portion (20) and the belonging contact member (120) with said solder (3'), and wherein the residual volume within said passage (10) in the casing (1) of the fuse, namely the area between said conductor (2) and the casing (1) as well as between said contact members (110, 120), is filled with a pre-determined quantity of arc preventing filler (5) of the basis of properly granulated silica.