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
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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.
Claims18
A method for cooling a cordless power tool including a battery pack while in use:
- enabling a fluid to enter through an inlet in said battery pack during use of the cordless power tool;
- passing the fluid around one or more cells in said battery pack during use of the cordless power tool;
- cooling said one or more cells with the passing fluid during use of the cordless power tool;
- and
- exiting the fluid from inside the battery pack to ambient through an outlet in said battery pack during use of the cordless power tool;
- operating said cordless power tool with said battery pack at a desired temperature for optimizing performance.
A method of cooling a removable battery pack for a hand held cordless tool while in use comprising:
- providing a hand held cordless tool with a removable battery pack;
- enabling a fluid to enter into said removable battery pack while in use;
- passing the fluid by one or more cells in the removable battery pack while in use;
- cooling said one or more cells in said removable battery pack while in use;
- enabling the fluid to exit said removable battery pack to ambient while in use;
- and
- operating said cordless power tool with said battery pack at a desired temperature for optimizing performance.
A method for cooling a cordless power tool including a battery pack while in use:
- positioning a mechanism for sinking heat in association with one or more cells in said battery pack;
- dissipating heat from said one or more cells via said mechanism during operation of said cordless power tool;
- cooling the battery pack during operation of said cordless power tool;
- and
- operating said cordless power tool with said battery pack at a desired temperature for optimizing performance.
A method of cooling a removable battery pack for a hand held cordless tool while in use comprising:
- positioning a mechanism for sinking heat in association with one or more cells in the removable battery pack;
- dissipating heat from said one or more cells via said mechanism in said removable battery pack during operation of said cordless tool;
- cooling said removable battery pack during operation of said hand held cordless tool;
- and
- operating said cordless power tool with said battery pack at a desired temperature for optimizing performance.
Dependencies are inferred from the claim text.