Circuit breaking device
First Claim
1. A circuit breaking device comprising:
- a housing for accommodating an explosive exploding in response to a trigger signal, said housing having an opening for directing an explosive force in one direction, said housing also having a vent hole from which a blast of explosion is released; and
an electric conductor formed as part of a circuit within the circuit breaking device, the electric conductor including a frangible portion capable of being broken by explosive force so as to break the circuit, wherein the frangible portion is opposed to the opening and is broken solely by the explosive force without the explosive force without mechanism between the explosive and the frangible portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A bus bar is connected between a battery post and a stud bolt to which an electric power supply wire is connected. An opening is provided in a housing in which an explosive sealing portion is accommodated. Just before the opening, a broken portion of the bus bar is provided. In the broken portion, a recess portion is formed, and this portion of the broken portion is thin. On both sides of the broken portion, a cutout portions are formed. In case of emergency, electric current generates in a trigger wire, and an explosive in the explosive sealing portion is exploded. An explosive force is directed to the opening of the housing, and the broken portion located just before the opening receives the explosive force forward. Due to the foregoing, the recess portion is broken and both broken pieces are bent at the cutout portions and opened being separated from each other. In this way, an electric power supply circuit is shut off.
63 Citations
10 Claims
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1. A circuit breaking device comprising:
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a housing for accommodating an explosive exploding in response to a trigger signal, said housing having an opening for directing an explosive force in one direction, said housing also having a vent hole from which a blast of explosion is released; and
an electric conductor formed as part of a circuit within the circuit breaking device, the electric conductor including a frangible portion capable of being broken by explosive force so as to break the circuit, wherein the frangible portion is opposed to the opening and is broken solely by the explosive force without the explosive force without mechanism between the explosive and the frangible portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a fastening ring for fastening a battery post of a battery, said fastening ring electrically connecting said battery post to said electric conductor; and
a stud bolt connected to a connection terminal of an electrical power supply wire, said stud bolt being electrically connected to said conductor.
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9. The circuit breaking device according to claim 5, wherein said circuit breaking device further comprises:
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a fastening ring for fastening a battery post of a battery, said fastening ring electrically connecting said battery post to said electric conductor; and
a stud bolt connected to a connection terminal of an electric power supply wire, said stud bolt being electrically connected to said electric conductor.
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10. The circuit breaking device according to claim 1, wherein said electric conductor is located between said explosive and said vent hole in the one direction, said vent hole releasing the blast of explosion after breakage of the frangible portion.
Specification