HEAT DISSIPATION DEVICE AND LED LAMP USING THE SAME
First Claim
1. A heat dissipation device comprising:
- a heat absorption board adapted for contacting a light source to absorb heat therefrom;
a fin assembly located over the heat absorption board;
two heat pipes thermally connecting the heat absorption board and the fin assembly;
a fan; and
a fan holder fixing the fan on the fin assembly, the fan holder comprising a supporting board supporting the fan and a plurality of supporting posts connecting an outer edge of the heat dissipation board and an outer edge of the supporting board, the supporting posts being embedded in the fin assembly.
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Accused Products
Abstract
An LED lamp includes a light source including LEDs and a heat dissipation device. The heat dissipation device includes a heat absorption board contacting the light source to absorb heat generated by the LEDs, a fin assembly located over the heat absorption board, two heat pipes thermally connecting the heat absorption board and the fin assembly, a fan and a fan holder fixing the fan on the fin assembly. The fan holder includes a supporting board supporting the fan and supporting posts connecting an outer edge of the heat dissipation board and an outer edge of the supporting board. The supporting posts are embedded in the fin assembly.
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Citations
17 Claims
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1. A heat dissipation device comprising:
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a heat absorption board adapted for contacting a light source to absorb heat therefrom; a fin assembly located over the heat absorption board; two heat pipes thermally connecting the heat absorption board and the fin assembly; a fan; and a fan holder fixing the fan on the fin assembly, the fan holder comprising a supporting board supporting the fan and a plurality of supporting posts connecting an outer edge of the heat dissipation board and an outer edge of the supporting board, the supporting posts being embedded in the fin assembly. - View Dependent Claims (2, 3, 4, 7, 8)
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6. The heat dissipation device of claim 5, wherein the first heat dissipating branches and the second heat dissipating branches extend outwardly to an outer circumferential surface of the heat absorption board, thereby increasing a contact area between the heat sink and the heat absorption board.
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9. An LED lamp comprising:
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a light source comprising a plurality of LEDs; and a heat dissipation device comprising a heat absorption board contacting the light source for absorbing heat generated by the LEDs, a fin assembly located over the heat absorption board, two heat pipes thermally connecting the heat absorption board and the fin assembly, a fan and a fan holder fixing the fan on the fin assembly; wherein the fan holder comprises a supporting board supporting the fan and a plurality of supporting posts connecting an outer edge of the heat dissipation board and an outer edge of the supporting board, the supporting posts being embedded in the fin assembly. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An LED lamp comprising:
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a plurality of light sources each comprising a plurality of LEDs; and a plurality of heat dissipation devices each comprising a heat absorption board contacting the light source to absorb heat generated by the LEDs, a fin assembly located over the heat absorption board, two heat pipes thermally connecting the heat absorption board and the fin assembly, a fan and a fan holder fixing the fan on the fin assembly; wherein the fan holder of each of the heat dissipation device comprises a supporting board supporting the fan and a plurality of supporting posts connecting an outer edge of the heat dissipation board and an outer edge of the supporting board, the supporting posts being embedded in the fin assembly, two adjacent heat dissipation devices being in tight contact with each other in such a manner that outer side surfaces of the fin assemblies of the adjacent heat dissipation devices are in tight contact with each other. - View Dependent Claims (17)
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Specification