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US 2004/0166405 A1Published application
Temperature fuse, and battery using the same
AssigneePanasonic Corporation
InventorsKenji Senda, Atsushi Kono, Tatsuya Wada
Life of this patent
Estimating the term…
Abstract
A thermal fuse includes an insulating case having a bottom and having an opening provided therein, a fusible alloy provided in the insulating case, a lead conductor having one end connected to the fusible alloy and other end led out from the insulating case through the opening of the insulating case, a flux provided on the fusible alloy, and a sealer for sealing the opening of the insulating case. The volume of a space between the fusible alloy in the insulating case and the sealer is larger than the volume of the flux. Sealing of the fuse is prevented from deteriorating, and the insulating film is prevented from damage even when the thermal fuse is used for breaking a large current at a high voltage.
Claims54
A thermal fuse comprising:
- an insulating case having a bottom and having an opening provided therein;
- a fusible alloy provided in said insulating case;
- a lead conductor having one end connected to said fusible alloy and other end led out from said insulating case through said opening of said insulating case;
- a flux provided on said fusible alloy;
- and
- a sealer for sealing said opening of said insulating case,
- wherein a volume of a space in said insulating case between said fusible alloy and said sealer is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- an insulating case having a bottom and having an opening provided therein;
- a fusible alloy provided in said insulating case;
- a lead conductor having one end connected to said fusible alloy and other end led out from said insulating case through said opening of said insulating case;
- a flux provided on said fusible alloy;
- and
- a sealer for sealing said opening of said insulating case,
- wherein a volume of a space in said insulating case between said fusible alloy and said bottom of said insulating case is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- an insulating case having openings at both ends thereof;
- a fusible alloy provided in said insulating case;
- lead conductors having respective one ends connected to said fusible alloy and respective other ends led out from of said insulating case through respective ones of said openings of said insulating case;
- a flux provided on said fusible alloy;
- and
- sealers for sealing said openings of said insulating case,
- wherein a volume of a space in said insulating case between a surface of said fusible alloy and an inner surface of said insulating case facing said surface of said fusible alloy is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- an insulating case having openings at both ends thereof;
- a fusible alloy provided in said insulating case;
- lead conductors having respective one ends connected to said fusible alloy and respective other ends led out from said insulating case through respective ones of said openings of said insulating case;
- a flux provided on said fusible alloy;
- and
- sealers for sealing said openings of said insulating case,
- wherein a volume of a space in said insulating case between one end of said fusible alloy and one of said pair of sealers is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film;
- a fusible alloy which is positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface in a first direction of said first insulating film and a surface of said fusible alloy facing said surface of said first insulating film is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film;
- a fusible alloy positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space created between said first and second insulating films,
- wherein a volume of a space between a surface of said second insulating film and a surface of said fusible alloy facing said surface of said second insulating film is larger than a volume of said flux.
4 more elements
Athermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film;
- a fusible alloy positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film at a sealing portion, said second insulating film providing a space between said first and insulating films,
- wherein a volume of a space between one end of said fusible alloy and said sealing portion for sealing said first and second insulating films is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film;
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface of said first insulating film and a surface of said fusible alloy facing said surface of said first insulating film is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film;
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface of said second insulating film and a surface of said fusible alloy facing said surface of said second insulating film is larger than a volume of said flux.
4 more elements
A thermal fuse comprising:
- a first insulating film;
- metal terminals mounted to said first insulating film;
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals;
- a flux provided on said fusible alloy;
- and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film at a sealing portion, said second insulating film providing space between said first and second insulating films,
- wherein a volume of a space between one end of said fusible alloy and said sealing portion for sealing said first and second insulating films is larger than a volume of said flux.
4 more elements
A battery comprising:
- a battery body;
- and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film,
- a fusible alloy positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals, said fusible alloy bring arranged to melt due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface in said first direction of said first insulating film and a surface of said fusible alloy facing said surface of said first insulating film is larger than a volume of said flux.
6 more elements
A battery comprising:
- a battery body;
- and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film,
- a fusible alloy positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals, said fusible alloy being arranged to melte due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface of said second insulating film and a surface of said fusible alloy facing said surface of said second insulating film is larger than a volume of said flux.
6 more elements
A battery, comprising:
- a battery body, and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film and having respective portions projecting in a first direction from said first insulating film,
- a fusible alloy positioned in said first direction from said first insulating film and connected between said respective portions of said metal terminals, said fusible alloy being arranged to melted due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film at a sealing portion, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between one end of said fusible alloy and said sealing portion for sealing said first and second insulating films is larger than a volume of said flux.
5 more elements
A battery comprising:
- a battery body;
- and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film,
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals, said fusible alloy being arranged to melt due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface of said first insulating film and a surface of said fusible alloy facing said surface of said first insulating film is larger than a volume of said flux.
6 more elements
A battery comprising:
- a battery body;
- and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film,
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals, said fusible alloy being arranged to melt due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between a surface of said second insulating film and a surface of said fusible alloy facing said surface of said second insulating film is larger than a volume of said flux.
6 more elements
A battery comprising:
- a battery body;
- and
- a thermal fuse including
- a first insulating film,
- metal terminals mounted to said first insulating film,
- a fusible alloy positioned in a first direction from said first insulating film and connected between respective end portions of said metal terminals, said fusible alloy being arranged to melt due to heat from said battery body,
- a flux provided on said fusible alloy, and
- a second insulating film positioned in said first direction from said fusible alloy and fitted to said first insulating film at a sealing portion, said second insulating film providing a space between said first and second insulating films,
- wherein a volume of a space between one end of said fusible alloy and said sealing portion for sealing said first and second insulating films is larger than a volume of said flux.
6 more elements
Dependencies are inferred from the claim text.