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US 2009/0243788 A1Published application
Fan Resistor
OwnerJack Cheninventor
Life of this patent
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Abstract
A fan resistor is formed with a resistive pattern of electrically conductive material sandwiched between two panels of thermally conductive material. An insulating barrier on each surface of the resistive pattern electrically insulates it from the thermally conductive panels. The resistive pattern is cut from a sheet of metal using a stamping machine and the cut resistive pattern is dropped on one of the panels, a surface of which has an electrically insulating barrier thereon.
Claims6
A fan resistor comprising
- a planar panel of resistive material shaped into a resistive pattern having a first and a second opposing planar surface and a pair of spaced apart serpentine edges defining said resistive pattern,
- said resistive pattern having a plurality of contact surfaces for connecting said resistive pattern into an electric circuit,
- a panel of heat conductive material,
- an electrically insulating barrier having a first planar surface applied against said first surface of said resistive pattern and a second surface applied against a surface of said panel of heat conductive material.
1 more element
Dependencies are inferred from the claim text.