LED lamp cooling apparatus with pulsating heat pipe
First Claim
1. An LED lamp cooling apparatus comprising:
- a substrate on which at least one LED is mounted;
a heat sink for dissipation of heat generated by the at least one LED; and
a pulsating heat pipe having a plurality of heat receiving portions and a plurality of heat radiating portions, and containing a working fluid therein, the substrate being attached to the heat receiving portions of the pulsating heat pipe and the heat sink being attached to the heat radiating portions of the pulsating heat pipe, the heat generated by the at least one LED being transferred from the heat receiving portions to the heat radiating portions of the pulsating heat pipe through pulsation of the working fluid in the pulsating heat pipe;
wherein an artery mesh is disposed in the pulsating heat pipe, and the artery mesh defines a hollow flow channel therein.
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Accused Products
Abstract
An LED lamp cooling apparatus (10) includes a substrate (11), a plurality of LEDs (13) electrically connected with the substrate, a heat sink (19) for dissipation of heat generated by the LEDs and a pulsating heat pipe (15) thermally connected with the heat sink. The pulsating heat pipe includes a plurality of heat receiving portions (154) and a plurality of heat radiating portions (155), and contains a working fluid (153) therein. The substrate is attached to the heat receiving portions of the pulsating heat pipe and the heat sink is attached to the heat radiating portions of the pulsating heat pipe. The heat generated by the LEDs is transferred from the heat receiving portions to the heat radiating portions of the pulsating heat pipe through pulsation or oscillation of the working fluid in the pulsating heat pipe.
105 Citations
18 Claims
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1. An LED lamp cooling apparatus comprising:
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a substrate on which at least one LED is mounted; a heat sink for dissipation of heat generated by the at least one LED; and a pulsating heat pipe having a plurality of heat receiving portions and a plurality of heat radiating portions, and containing a working fluid therein, the substrate being attached to the heat receiving portions of the pulsating heat pipe and the heat sink being attached to the heat radiating portions of the pulsating heat pipe, the heat generated by the at least one LED being transferred from the heat receiving portions to the heat radiating portions of the pulsating heat pipe through pulsation of the working fluid in the pulsating heat pipe; wherein an artery mesh is disposed in the pulsating heat pipe, and the artery mesh defines a hollow flow channel therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An LED lamp cooling apparatus comprising:
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a substrate; a plurality of LEDs mounted on the substrate; a pulsating heat pipe having a heat receiving portion in thermal connection with the LEDs and a heat radiation portion; and a heat sink in thermal connection with the heat radiation portion of the pulsating heat pipe; wherein the pulsating heat pipe has working fluid therein, the working fluid having alternate liquid and vapor segments, the fluid moving from the heat receiving portion to the heat releasing portion in a pulsating manner when the heat receiving portion receives heat from the LEDs; and wherein the LED lamp cooling apparatus further comprises a reflector for reflecting light generated by the LEDs to a specific spot. - View Dependent Claims (16, 17)
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18. An LED lamp cooling apparatus comprising:
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a substrate; a plurality of LEDs mounted on the substrate; a pulsating heat pipe having a heat receiving portion in thermal connection with the LEDs and a heat radiation portion; and a heat sink in thermal connection with the heat radiation portion of the pulsating heat pipe; wherein the pulsating heat pipe has working fluid therein, the working fluid having alternate liquid and vapor segments, the fluid moving from the heat receiving portion to the heat releasing portion in a pulsating manner when the heat receiving portion receives heat from the LEDs; and wherein the heat sink also functions as a reflector for reflecting light generated by the LEDs to a specific spot.
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Specification