초록 ▼

A pressure actuated breaker for cutting-off current flow in and from a battery in response to a relatively low internal pressure rise within the battery. The pressure cut-off sensor includes a box having an opening and being formed of an insulating material, a bendable packing for covering the openi

A pressure actuated breaker for cutting-off current flow in and from a battery in response to a relatively low internal pressure rise within the battery. The pressure cut-off sensor includes a box having an opening and being formed of an insulating material, a bendable packing for covering the opening and which is deformed into the box by external pressure, an actuator having a higher elasticity than the packing and being pressed by the deformation of the packing, and a breakable element supported in the box, the breakable member including a substrate and a conductive path formed on the substrate. When pressure within the battery exceeds a predetermined amount, the packing is pressed inward into the box, thereby pressing the actuator against the breakable member such that the substrate is cracked, thereby breaking the conductive path.

대표청구항 ▼

[ What is claimed is:] [1.] A pressure actuated breaker comprising:a box formed of an insulating material and defining an opening;a pressure receiving member disposed to cover the opening of said box, the pressure receiving member being formed from a flexible material such that the pressure receivin

[ What is claimed is:] [1.] A pressure actuated breaker comprising:a box formed of an insulating material and defining an opening;a pressure receiving member disposed to cover the opening of said box, the pressure receiving member being formed from a flexible material such that the pressure receiving member is deformed inwardly into the box by external pressure;an operating member having a higher rigidity than said pressure receiving member and being located inside of the box adjacent the pressure receiving member such that the operating member is pressed away from the opening by said deformation of said pressure receiving member; anda breakable member contained in said box, said breakable member including a substrate and a conductive path formed on the substrate, said substrate being formed from a breakable material and being supported in said box such that when the breakable member is pressed by said operating member with a force exceeding a predetermined value, the substrate is cracked, thereby breaking said conductive path.