Thermal resistance measuring apparatus
First Claim
Patent Images
1. A thermal resistance measuring apparatus for a heat sink, comprising:
- a heat source configured for heating the heat sink;
a temperature sensor configured for sensing temperature signals of the heat source;
micro control unit (MCU) configured for receiving the temperature signals from the temperature sensor and processing them to calculate thermal resistance of the heat sink;
a display electrically connected to the MCU for showing the thermal resistance of the heat sink; and
a power apparatus for supplying power to the heat source, the temperature sensor, and the MCU,wherein the MCU calculates the thermal resistance of the heat sink by the following formula;
TR=(Tm−
Te)/Pw where TR is the thermal resistance of the heat sink, Tm is the maximum temperature of the heat source when the heat source works under the rated power thereof, Te is room temperature, and Pw is the rated power of the heat source.
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Abstract
A thermal resistance measuring apparatus for a heat sink includes a heat source, a temperature sensor, a micro control unit (MCU), a display, and a power apparatus. The heat source heats the heat sink. The temperature sensor senses temperature signals of the heat source. The MCU receives the temperature signals from the temperature sensor and processes them to calculate thermal resistance of the heat sink. The display is electrically connected to the MCU for showing the thermal resistance of the heat sink. The power apparatus supplies power to the heat source, the temperature sensor, and the MCU.
18 Citations
14 Claims
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1. A thermal resistance measuring apparatus for a heat sink, comprising:
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a heat source configured for heating the heat sink; a temperature sensor configured for sensing temperature signals of the heat source; micro control unit (MCU) configured for receiving the temperature signals from the temperature sensor and processing them to calculate thermal resistance of the heat sink; a display electrically connected to the MCU for showing the thermal resistance of the heat sink; and a power apparatus for supplying power to the heat source, the temperature sensor, and the MCU, wherein the MCU calculates the thermal resistance of the heat sink by the following formula;
TR=(Tm−
Te)/Pwwhere TR is the thermal resistance of the heat sink, Tm is the maximum temperature of the heat source when the heat source works under the rated power thereof, Te is room temperature, and Pw is the rated power of the heat source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A thermal resistance measuring apparatus comprising:
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a case; a heat source received in the case, and configured for being supplied with power to reach a desired temperature which depends on the related power of the heat source, a heat sink attached to a surface of the heat source; a temperature sensor contacting the heat source for sensing temperature signals thereof; a micro control unit (MCU) connected to the temperature sensor for receiving the temperature signals and processing them to calculate thermal resistance of the heat sink; a display electrically connected to the MCU for showing the thermal resistance of the heat sink; and a power apparatus connected to the display, the temperature sensor, and the MCU for supplying power thereto, where the MCU calculates the thermal resistance of the heat sink by the following formula;
TR=(Tm−
Te)/Pwwhere TR is the thermal resistance the heat sink, Tm is the maximum temperature of the heat source when the heat source works under the rated power thereof, Te is room temperature, and Pw is the rated power of the heat source. - View Dependent Claims (11, 12, 13, 14)
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Specification