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Heat dissipation device

A radiator and heat dissipation hole technology, which is applied to lighting and heating equipment, cooling/heating devices of lighting devices, lighting devices, etc., can solve the problems of low heat dissipation efficiency, affecting the service life of LED lamps, and high temperature of LED light sources and power supplies. Achieve the effect of large heat dissipation area

Inactive Publication Date: 2015-01-21
东莞市闻誉实业有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the radiator is generally closed cylindrical, which makes the air inside the radiator unable to circulate with the outside air in time, resulting in low heat dissipation efficiency, resulting in high temperature of the LED light source and power supply, thus affecting the light efficiency and life of the LED.
Although some radiators also have heat dissipation holes, in order to prevent dust and moisture for LED lights, the heat dissipation holes are small, resulting in problems such as insufficient heat dissipation, which will also affect the service life of LED lights

Method used

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Embodiment Construction

[0023] Such as figure 1 with figure 2 , which are respectively a structural schematic diagram of a radiator 10 in an embodiment of the present invention and an explosion schematic diagram of a radiator 10 of the present invention, wherein the default figure 1 The structural diagram showing the closed state of the cooling hole 120 of the radiator 10 is a general state.

[0024] The radiator 10 includes: a radiator body 110 , a plurality of cooling holes 120 arranged on the radiator body 110 , a baffle 130 closely attached to the radiator body 110 , and a baffle 130 connected between the baffle 130 and the radiator body 110 drive 140 . The radiator body 110 may be cylindrical, elliptical or square, preferably cylindrical. The blocking piece 130 is closely attached to the inner wall of the radiator body 110 . Wherein, the cooling hole 120 may be in any shape, preferably a square. The outer wall of the radiator body 110 can also be connected with a plurality of cooling fins ...

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Abstract

A heat dissipation device comprises a cylindrical heat dissipation device body, a plurality of heat dissipation holes formed in the heat dissipation device body, a blocking piece tightly attached to the heat dissipation device body, and drivers connected between the blocking piece and the heat dissipation device body. The blocking piece comprises a blocking piece body, blocking strips connected with the blocking piece body, and first connecting portions arranged on the blocking piece body. The heat dissipation device body is provided with second connecting portions matched with the first connecting portions. The drivers are connected between the first connecting portions and the second connecting portions. The drivers are made of shape memory alloy material and can deform in the circumferential direction of the heat dissipation device body when heated to reach the preset temperature value. According to the heat dissipation device, in the room temperature, the blocking piece can close the heat dissipation holes so that the heat dissipation device can be in a closed state. After the heat dissipation device is heated, the drivers made of the shape memory alloy material can be stretched out and drawn back or can be bent in the circumferential direction of the heat dissipation device body, and therefore the blocking piece is driven to rotate so as to open the heat dissipation holes, and the heat dissipation efficiency is improved.

Description

technical field [0001] The invention relates to a heat dissipation structure, in particular to a radiator with heat dissipation holes. Background technique [0002] LED (Light Emitting Diode), that is, semiconductor electric light source, light-emitting diode, also known as semiconductor lamp, is a kind of electric light source without filament, which directly converts electrical energy into light energy. [0003] LED lights have the characteristics of energy saving and long life, avoiding the trouble of changing bulbs frequently, and are favored by more and more users. However, the heat dissipation problem of LED lights is also a key issue, which seriously affects the light efficiency and life of LED light sources. The heat dissipation of LED lights generally depends on the radiator. Traditional radiators are equipped with larger heat dissipation areas. However, the radiator is generally closed cylindrical, which makes the air inside the radiator unable to circulate with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/77F21Y101/02
CPCF21Y2101/00
Inventor 叶伟炳
Owner 东莞市闻誉实业有限公司
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