LED heat dissipation structure, LED lamp, and heat dissipation method thereof
AssigneeZhejiang Li Sheng Photoelectric Technology Co., Ltd.
InventorYizhi Zhou
Life of this patent
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Abstract
An LED heat dissipation structure includes a heat sink, a cover plate, and an air blowing device. The heat sink has fins. Gaps between the fins form a plurality of continuous air flow channels, and air discharge ends of the air flow channels (16) extend to a peripheral surface of the heat sink. The cover plate covers the fins, closes openings of the airflow channels at tip portions of the fins, and partially bulges and forms an air inlet chamber communicating with the air flow channels. The air blowing device forcibly blows air into the air inlet chamber.
Claims28
An LED heat dissipation structure, comprising:
- a heat sink, including fins, wherein gaps between the fins form a plurality of continuous air flow channels, and air discharge ends of the air flow channels extend to a peripheral surface of the heat sink;
- a cover plate, covering the fins, closing openings of the air flow channels at tip portions of the fins, and partially bulging and forming an air inlet chamber communicating with the air flow channels;
- and
- at least one air blowing device, forcibly blowing air into the air inlet chamber, wherein the air inlet chamber is divided into a plurality of independent sub-chambers, and each sub-chamber is provided with 1 to 2 of the air blowing devices.
A heat dissipation method of the LED lamp, the LED lamp comprising a heat sink that includes fins, wherein gaps between the fins form a plurality of through air flow channels, air discharge ends of the air flow channels extend to a peripheral surface of the heat sink;
- a back surface of the heat sink is provided with a cover plate, which covers the fins, closes openings of the air flow channels at tip portions of the fins, and partially bulges and forms an air inlet chamber communicating with the air flow channels;
- the air inlet chamber is divided into a plurality of independent sub-chambers, and each sub-chamber is provided with 1 to 2 air blowing devices forcibly blowing air into the air inlet chamber, and
- the heat dissipation method comprises following steps:
- forcibly blowing air into the air inlet chamber by the air blowing devices, such that heat exchange between air and the fins is performed and then the air is discharged from a side surface of the heat sink.
Dependencies are inferred from the claim text.