Heat pipe with sintered powder wick
First Claim
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1. A heat pipe comprising:
- a casing;
working fluid received in the casing; and
a wick structure sintered at an inner surface of the casing, the wick structure comprising spherical metal powder, the spherical metal powder having an apparent density ranging from 3.3 g/cm3 to 4.8 g/cm3.
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Abstract
A heat pipe includes a casing and a sintered powder wick arranged at an inner surface of the casing. The sintered powder wick is made of spherical metal powder (300), the spherical metal powder having an apparent density ranging from 3.3 g/cm3 to 4.8 g/cm3 to reduce micro pores of the sintered powder wick and improve ability of heat transfer of the heat pipe.
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Citations
15 Claims
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1. A heat pipe comprising:
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a casing;
working fluid received in the casing; and
a wick structure sintered at an inner surface of the casing, the wick structure comprising spherical metal powder, the spherical metal powder having an apparent density ranging from 3.3 g/cm3 to 4.8 g/cm3. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for manufacturing a heat pipe comprising steps of:
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providing a hollow casing;
inserting a mandrel into the casing;
filling spherical metal powder into a space between the mandrel and the inner surface of the casing, wherein an apparent density of the spherical metal powder ranges from 3.3 g/cm3 to 4.8 g/cm3; and
conducting sintering process to the casing and the filled spherical metal powder, whereby a sintered wick structure made of the spherical metal powder is formed inside the casing. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification