POWER TOOL WITH HEAT SINK ASSEMBLY
First Claim
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1. 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; and
a heat sink coupled with said activation member, said heat sink portion positioned in said handle portion of said housing adjacent a free end of said handle portion.
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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.
26 Citations
12 Claims
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1. A power tool, comprising:
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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; and
a heat sink coupled with said activation member, said heat sink portion positioned in said handle portion of said housing adjacent a free end of said handle portion. - View Dependent Claims (2, 3, 4)
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5. A power tool, comprising:
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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; and
a heat sink coupled with said activation member, said heat sink positioned in said handle portion of said housing adjacent said battery. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification