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US 6,552,904 B2Granted
Power tool with heat sink assembly
AssigneeBlack & Decker Inc.
InventorGeorge CH Fung
Life of this patent
Estimating the term…
Abstract
A power tool such as a drill has an activation switch which energizes a motor which, in turn, drives an output. The switch includes a field effect transistor coupled to a heat sink to dissipate heat from the transistor. The heat sink is positioned at a free end of the handle remote from the switch.
Claims11
A power tool, comprising:
- a housing, said housing having a motor portion and a handle portion;
- a motor in said housing;
- an output coupled with said motor;
- an activation member coupled with said motor, for energizing said motor for driving said output;
- a power source coupled with the motor and said activation member;
- a heat generating component coupled with said actuation member;
- and
- a heat sink coupled with said heat generating component and said heat sink discrete from said activation member, said heat sink portion positioned on a shelf in said handle portion of said housing near a bottom of said handle portion.
5 more elements
A power tool, comprising:
- a housing having a motor portion and a handle portion;
- a motor in said housing;
- an output coupled with said motor;
- an activation member in said housing, said activation member coupled with said motor for energizing said motor for driving said output;
- a battery coupled with said motor and said activation member, said battery supported on said housing adjacent said handle portion;
- a heat generating component coupled with said actuation member;
- and
- a heat sink coupled with said heat generating component and said heat sink discrete from said activation member, said heat sink positioned on a shelf in said handle portion of said housing near the bottom of the housing near said battery.
5 more elements
Dependencies are inferred from the claim text.