Heat transfer device
First Claim
Patent Images
1. A heat transfer device comprising:
- a heat pipe in which working fluid is enclosed, a heat receiving section being provided on one end side of the heat pipe and a heat radiating section being provided on another end side of the heat pipe, whereinon an inner wall of the heat pipe, a first wick disposed in the heat receiving section of the heat pipe and a second wick is disposed in the heat radiating section of the heat pipe, a bent section bent between the heat receiving section and the heat radiating section is provided, a boundary section between the first wick and the second wick is disposed below the bent section in a gravity direction, and the heat receiving section is disposed above the bent section in a direction of a pull of gravity,the working fluid is stored in a liquid reservoir that includes the second wick and the boundary section between the first wick and the second wick, the liquid reservoir being formed at a lowest point of the bent section in the direction of the pull of gravity,an end portion of the first wick is directly connected to an end portion of the second wick at the boundary section between the first wick and the second wick,the boundary section corresponds to a lower part of the bent section in the direction of the pull of gravity, the first wick and the second wick always being soaked by the working fluid in the liquid reservoir,capillary pressure in the first wick causes some of the working fluid to reflux to the heat receiving section, andcapillary pressure in the second wick causes some of the working fluid to be supplied to the first wick.
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Accused Products
Abstract
A heat transfer device includes a heat pipe in which working fluid is enclosed, a heat receiving plate provided on one end side of the heat pipe and a heat radiating fin provided on the other end side of the heat pipe, a first wick and a second wick that transfer working fluid provided on an inner wall surface of the heat pipe, a bent section bent between the one end side and the other end side, and a boundary section between the first wick and the second wick disposed in a lower part in the gravity direction of the bent section of the heat pipe or the heat transfer device. The heat transfer device can improve heat transfer characteristics with a simple configuration.
13 Citations
9 Claims
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1. A heat transfer device comprising:
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a heat pipe in which working fluid is enclosed, a heat receiving section being provided on one end side of the heat pipe and a heat radiating section being provided on another end side of the heat pipe, wherein on an inner wall of the heat pipe, a first wick disposed in the heat receiving section of the heat pipe and a second wick is disposed in the heat radiating section of the heat pipe, a bent section bent between the heat receiving section and the heat radiating section is provided, a boundary section between the first wick and the second wick is disposed below the bent section in a gravity direction, and the heat receiving section is disposed above the bent section in a direction of a pull of gravity, the working fluid is stored in a liquid reservoir that includes the second wick and the boundary section between the first wick and the second wick, the liquid reservoir being formed at a lowest point of the bent section in the direction of the pull of gravity, an end portion of the first wick is directly connected to an end portion of the second wick at the boundary section between the first wick and the second wick, the boundary section corresponds to a lower part of the bent section in the direction of the pull of gravity, the first wick and the second wick always being soaked by the working fluid in the liquid reservoir, capillary pressure in the first wick causes some of the working fluid to reflux to the heat receiving section, and capillary pressure in the second wick causes some of the working fluid to be supplied to the first wick. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification