Battery cooling system
AssigneeBlack & Decker Inc.
InventorsRobert G. Moores, Jr., Rouse R. Bailey, Jr., Robert Bradus, John R. Cochran, Lee W. Ramstrom, Douglas L. Kreiser
Life of this patent
Estimating the term…
Abstract
A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.
Claims46
A cordless power tool comprising:
- the cordless power tool having a housing including a mechanism for coupling with a removable battery pack;
- said removable battery pack comprising a housing with one or more cells in said housing, a vent system in said battery pack housing for enabling fluid passage through said housing when said cordless power tool is in use;
- and
- a mechanism associated with said battery pack for dissipating heat from said battery pack.
An auxiliary fluid mover for cooling a rechargeable battery pack, comprising:
- a housing;
- a mechanism for electrically coupling with a battery pack, said mechanism coupled with said housing;
- a mechanism for electrically coupling with a charger, said mechanism coupled with said housing;
- a vent system for directing fluid to a battery pack;
- and
- a mechanism for moving fluid through said housing into a battery pack.
A cordless power tool comprising:
- the cordless power tool having a mechanism for coupling with a removable battery pack;
- said removable battery pack comprising a housing with a plurality of cells in said housing;
- and
- a mechanism in said housing coupled with said plurality of cells for equalizing temperature of said plurality of cells when said cordless power tool is in use.
A cordless power tool comprising:
- a cordless power tool having a mechanism for coupling with a removable battery pack;
- said removable battery pack comprising a housing with a plurality of cells in said housing;
- and
- a mechanism in said housing coupled with said plurality of cells for equalizing temperature of said plurality of cells when said cordless power tool is in use.
A battery pack temperature change mechanism comprising:
- a housing;
- a mechanism in the housing for moving fluid through a vent system of a battery pack;
- and
- a power source coupled with said fluid moving mechanism;
- and
- a switch for activating the fluid moving mechanism wherein only upon activation of said switch is fluid passed through said housing such that the battery pack is heated or cooled.
A cordless power tool comprising:
- a cordless power tool having a housing including a mechanism for coupling with a removable battery pack;
- said removable battery pack comprising a housing with one or more cells in said housing, a vent system in said battery pack housing for enabling fluid passage through said housing;
- and
- a mechanism associated with said battery pack for dissipating heat from said battery pack, said mechanism includes a heat sink for dissipating heat from said one or more cells.
Dependencies are inferred from the claim text.