LED heat radiator based on heat pipe technology

A kind of LED heat sink technology, which is applied in semiconductor devices of light-emitting elements, lighting and heating equipment, cooling/heating devices of lighting devices, etc., can solve the problem of large temperature gradient, low heat conduction efficiency, and slow start of heat dissipation of radiators, etc. problem, to achieve the effect of reducing thermal gradient, rapid heat dissipation, and fast start of heat dissipation

Inactive Publication Date: 2014-07-16
XIANGBIAN LIGHTING TECH SHANGHAI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an LED radiator based on heat pipe technology, which sol

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  • LED heat radiator based on heat pipe technology
  • LED heat radiator based on heat pipe technology
  • LED heat radiator based on heat pipe technology

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[0022] The present invention will be further described below in conjunction with specific embodiments.

[0023] An LED radiator based on heat pipe technology, comprising a gravity heat pipe arranged in the center and a sun flower-shaped radiating fin 4 arranged around the gravity heat pipe. The gravity heat pipe includes a middle through pipe 1 and an upper cover 2 and a bottom cover 3. The middle through tube 1 is welded to the upper cover 2 and the bottom cover 3 to form a vacuum, and a refrigerant 5 is filled in the middle. The heat dissipation fins 4 are arranged around the through tube 1 and the bottom cover 3 is The part of the surface located in the through pipe is provided with a uniformly distributed multi-point protruding grooved milk structure 6, a sealing hole 7 is arranged in the middle of the upper cover 2, and the bottom of the bottom cover 3 is connected with the LED lamp.

[0024] The sealing hole 7 includes a lower inverted tapered hole section 71, a middle rectan...

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Abstract

The invention relates to a high-power LED heat radiator, and belongs to the field of LED heat radiation. The high-power LED heat radiator based on a heat pipe technology is characterized in that a gravity heat pipe in the center and sunflower-shaped cooling fins (4) around the gravity heat pipe are included, the gravity heat pipe comprises a middle through pipe (1), an upper cover (2) and a bottom cover (3), the middle through pipe (1) is integrally welded to the upper cover (2) and the bottom cover (3), vacuum is formed in a sealing mode, the space among the middle through pipe, the upper cover and the bottom cover is filled with refrigeration media (5), the cooling fins (4) are arranged around the through pipe (1), a plurality of evenly-distributed protruding groove emulsion structures (6) are arranged in the portion, in the through pipe, of the upper surface of the bottom cover (3), a sealing hole (7) is formed in the middle of the upper cover (3), and the lower portion of the bottom cover (3) is connected with an LED lamp. The structure of overall vacuum sealing and the surrounding cooling fins is adopted, the heat conduction efficiency of the heat pipe is improved, heat radiation is fast, the size is small, and the service life is long.

Description

technical field [0001] The invention relates to a high-power LED radiator, in particular to an LED radiator based on heat pipe technology. Background technique [0002] At present, the manufacture of high-power LEDs is developing towards high performance, integration and miniaturization, and the power density of its chips can reach hundreds of W / cm2. The electro-optical conversion efficiency of high-power LED is about 20%, and about 80% of the electric energy is converted into heat, so the heat flux density at the chip is extremely high. However, the rise of LED junction temperature will lead to a decrease in luminous efficiency, a shortened lifespan, a shift in the luminous spectrum, and in severe cases, the chip will be burned. Therefore, heat dissipation is one of the key problems that need to be solved in high-power LED lighting. [0003] There are also many proposals for radiators on the market now, but due to the problem of heat dissipation efficiency, they are basica...

Claims

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Application Information

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IPC IPC(8): F21V29/00B23K20/12F21Y101/02F21V29/51F21V29/77F21Y115/10
Inventor 张卫东
Owner XIANGBIAN LIGHTING TECH SHANGHAI
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