Battery pack with an improved cooling structure
First Claim
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1. A battery pack comprising:
- an outer enclosure containing a plurality of battery cells and having a mounting portion adapted to be removably attached to a charger and a battery powered device;
at least one intake port provided in the mounting portion for introducing into the battery pack cooling air supplied from a charger;
at least one discharge port provided in the mounting portion for discharging the cooling air from the battery pack; and
at least one air passage connecting the at least one intake port to the at least one discharge port, the at least one air passage allowing the cooling air introduced through the at least one intake port to flow one of along and between the cells and to be discharged through the at least one discharge port.
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Abstract
A battery pack (1) includes an air intake port (9), air discharge ports (11), first air passages (24), and a second air passage (25). Cooling air introduced into the battery pack through the air intake port (9) flows around and through two cell groups contained in the pack before exiting to the pack from the discharge ports (11). As the intake port and the discharge ports are both provided at an upper enclosure (4) of the battery pack that is set on a charger (50) for charging or an electric power tool as a power source, neither intake port nor the discharge ports are exposed to the exterior environment whether the pack is set on the charger or attached to a power tool.
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Citations
13 Claims
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1. A battery pack comprising:
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an outer enclosure containing a plurality of battery cells and having a mounting portion adapted to be removably attached to a charger and a battery powered device;
at least one intake port provided in the mounting portion for introducing into the battery pack cooling air supplied from a charger;
at least one discharge port provided in the mounting portion for discharging the cooling air from the battery pack; and
at least one air passage connecting the at least one intake port to the at least one discharge port, the at least one air passage allowing the cooling air introduced through the at least one intake port to flow one of along and between the cells and to be discharged through the at least one discharge port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification