Temperature-sensitive fuse

Details Temperature-sensitive fuse Temperature-sensitive fuse

H - Electricity

01

H

306/130

H01H 37/76 (2006.01)

Patent

CA 1139808

ABSTRACT OF THE DISCLOSURE A temperature-sensitive fuse comprises a first electric conductor electrically connected to one end of an electrically conductive casing; a second electric conductor which is connected to the other end of the casing in such a manner so as to be electrically insulated therefrom; a temperature-sensitive, fusible pellet disposed in the end portion of the casing containing the first conductor; a movable disc member which is disposed between the fusible pellet and the top portion of the second conductor, normally in contact with the top portion of the second conductor and the inner wall of the casing, and held by a spring in such a manner that when the fusible pellet melts and collapses at a predetermined ambient temperature, the movable disc is moved away from the top portion of the second conductor. Further, the top portion of the second conductor is rounded or formed in the shape of a circular cone and is substantially fitted into a tapered opening formed in the central portion of the disc, in the axial direction of the tubular casing. In one portion of the disc, there is formed a slit which is open from the tapered opening to an outer peripheral portion of the disc. - 14 -

360027

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