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US 6,346,796 B1Granted
Thermal shut-off device and battery pack
AssigneeUchiya Thermostat Co., Ltd.
InventorHideaki Takeda
Life of this patent
Estimating the term…
Abstract
Contacts 3, 6, which are opened/closed by the displacement of a heat responsive element 7, are interposed between first and second terminals 2, 9, and a heat generating resistor 8 is interposed between the first terminal 9 and a third terminal 10, whereby the heat responsive element 7 is displaced by heat generated when a current is caused to flow in the heat generating resistor 8 via the third terminal 10.
Claims16
A thermal shut-off comprising:
- a fixed plate having a first terminal and a first contact;
- a movable plate positioned above the fixed plate opposed to the first contact;
- a bimetal positioned on a side of an upper face of the movable plate and reversed to deform the movable plate such that the second contact is separated from the first contact, when a temperature exceeds a set temperature;
- a third terminal;
- and
- a film-shaped heat generating resistor disposed between the movable plate and the bimetal, whose one end is electrically connected to the movable plate and whose other end is electrically connected to the third terminal,
- wherein the bimetal is reversed by heat generation occurring when current is caused to flow in the heat generating resistor via the third terminal.
4 more elements
A thermal shut-off device comprising:
- a fixed plate formed of a conductive material, the fixed plate having a terminal at the rear end portion thereof and a fixed contact at the front-end portion thereof;
- an insulating plate disposed on the first fixed plate, the insulating plate having two columnar protrusions at the rear part thereof;
- and
- a moveable plate, the moveable plate formed of a metal, the moveable plate having elasticity, the moveable plate disposed on the insulating plate by fitting the rear part thereof onto the columnar protrusions associated with the insulating plate, the moveable plate having a moveable contact opposed to the fixed contact on a front portion thereof and a terminal on the rear end portion thereof.
1 more element
A thermal shut-off device comprising:
- a fixed plate formed of a conductive material with a terminal at a rear end portion thereof and a fixed contact at the front-end portion thereof;
- an insulating plate disposed on the first fixed plate, the insulating plate having a protrusion disposed on a front portion thereof;
- a moveable plate having a moveable contact disposed on a front portion thereof and a terminal disposed on a rear portion thereof, the moveable plate having an opening through which a protrusion associated with the insulating plate can pass.
Dependencies are inferred from the claim text.