Metal-polymer-heat pipe composited heat radiating structure of LED (light emitting diode) reading lamp

Abstract

The invention relates to a metal-polymer-heat pipe composited heat radiating structure of an LED (light emitting diode) reading lamp. The heat radiating structure comprises an LED integrated light source, a metal substrate, a metal heat radiator, a polymer heat radiation shell with a microstructure and a heat pipe group; the heat pipe is additionally arranged between the metal heat radiator and the metal substrate, so that the heat can be more efficiently and rapidly transferred, and the heat radiating performance can be effectively improved. The microstructure is machined on the polymer shell according to the attractiveness requirement, so that not only can the heat radiating area of the polymer heat radiator be effectively increased, but also the heat radiating capacity can be improved; moreover, the LED lamp is attractive in appearance, and a purpose of beatifying the appearance can be achieved. A convection through hole is formed on the polymer shell, so that hot air inside the reading lamp can be better radiated to the external air of the reading lamp, and the heat exchanging effect can be enhanced. The polymer shell also has advantages of light weight, convenience and difficulty in corrosion, so that the service life of the LED lamp can be effectively prolonged. By adopting the heat radiating structure, the working temperature of the LED reading lamp can be lowered, the service life of the lamp can be effectively prolonged, the machining cost of the lamp can be reduced, and the economic benefit can be improved.

Description

technical field [0001] The invention relates to the heat dissipation structure design of LEDs, in particular to the background technology of the heat dissipation structure of an LED desk lamp that adopts metal-polymer-heat pipe composite. Background technique [0002] In today's highly competitive market, whether low-cost, high-efficiency LED lamps can be produced is related to the survival of enterprises. Radiator is an important component of LED lamps. The heat dissipation performance of radiators is related to the service life of LED lamps. The scientific research institutions of various enterprises are working on improving radiators or proposing new radiators, which have achieved energy efficiency and reduced cost purposes. Ordinary LED lights also generate a certain amount of heat when they are used to emit light. If the heat is not dissipated in time, it will accumulate slowly and the heat will rise, causing components to burn out or reducing the service life. Some L...

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Problems solved by technology

Since the heat pipe works according to the mass balance of the liquid-phase working medium and steam and the mechanical balance of the fluid, many of the limiting factors have caused many limits of its heat transfer performance. In addition, in the process of manufacturing the heat pipe structure, the production cost It is also relatively high, and the process is more complicated. These are the factors that limit the development of heat pipes.

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