CN203298265U

CN203298265U - Cooling device for light-emitting diode (LED) lamp tube

Info

Publication number: CN203298265U
Application number: CN2013203754393U
Authority: CN
Inventors: 朱浩松
Original assignee: Chongqing Liangkang Photoelectric Science & Technology Co Ltd
Current assignee: Chongqing Liangkang Photoelectric Science & Technology Co Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2013-11-20
Anticipated expiration: 2023-06-27

Abstract

The utility model relates to a cooling device for an LED lamp tube and belongs to the technical field of LED cooling. The cooling device is characterized in that dense round needle columns are arranged on the peripheral surfaces of outer cooling tubes, and dense protruding saw teeth are arranged on the outer surfaces of the needle columns. Radiation cooling paints are sprayed on all outer surfaces of the outer cooling tubes. During usage, heat on a lamp plate can be dissipated from all the surfaces of the outer cooling tubes after being conducted to the outer cooling tubes, and due to the dense needle columns and the saw teeth, the cooling area is greatly increased; meanwhile, the radiation cooling paint is sprayed, so that the cooling speed is increased; due to the dual function, heat can be dissipated rapidly, and the effective service life of the whole LED lamp tube is prolonged.

Description

LED fluorescent tube heat abstractor

Technical field

The utility model belongs to the heat dissipation technology field of LED light fixture, and is particularly a kind of with zigzag fashion and brushed the LED fluorescent tube heat abstractor of heat radiation paint.

Background technology

The same with other light source, semiconductor light emitting diode (LED) also can produce heat during operation, and how much it depends on whole luminous efficiency.Power up outside under energy, the radiation recombination generation electroluminescent in electronics and hole, near the light that radiates PN junction also needs just can arrive at the external world through the semiconductor medium of chip itself and encapsulation medium.Comprehensive electric current injection efficiency, radioluminescence quantum efficiency, chip exterior light take out efficiency etc., and finally probably only having the input electric energy conversion of 30-40% is luminous energy, and the energy of all the other 60-70% mainly transforms heat energy with the form of the lattice vibration of non-radiative compound generation.

In general, whether the work of LED lamp is stable, the quality quality, and most important with lamp body heat radiation itself, the heat radiation of the high-brightness LED lamp on market, usually adopt natural heat dissipation, and effect is unsatisfactory.The LED light fixture that LED light source is made, be comprised of LED, radiator structure, driver, lens, and therefore heat radiation is also a part and parcel, if LED can not finely dispel the heat, its life-span also can be influenced.

At present, the heat dissipating method of LED has a variety of, mainly contains aluminium radiating fin heat radiation, with the aluminium radiating fin, as the part of shell, increases area of dissipation; The heat radiation of heat-conducting plastic shell, use LED insulating radiation plastics substitution of Al alloy to make radiator; The surface emissivity heat radiation, smear the heat loss through radiation paint on surface, heat is taken away to the lamp housing surface with radiation mode; Utilize the heat radiation of air fluid mechanics, utilize the lamp housing profile, produce the convection current air; Fan cooling, inner with long-service life high-efficiency fan reinforcement heat radiation at lamp housing; The heat pipe heat radiation, lead the shell radiating fin by heat by LED chip; The heat radiation of liquid ball bubble, the transparency liquid that thermal conductivity is higher are filled in lamp body ball bubble; Utilize the heat radiation of lamp holder screw-button, the lamp holder heat radiation of larger metal surface is arranged as screw socket; These methods are each has something to recommend him, can both solve some problems, but limitation is arranged.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of device that increases the heat radiation that area of dissipation and heat loss through radiation combine that adopts, in order to the heat Quick diffusing is gone out, extends the service life of LED.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is a kind of LED fluorescent tube heat abstractor, comprise the heat radiation outer tube, it is characterized in that having installed intensive round pin post on the outer surface of described heat radiation outer tube, the outer surface of pin post has intensive convex sawtooth; On all outer surfaces of heat radiation outer tube, sprayed the heat loss through radiation paint.

During use, after the heat on lamp plate is transmitted on the heat radiation outer tube, can distribute from all surface of heat radiation outer tube, because intensive pin post and sawtooth have increased area of dissipation greatly, brush simultaneously the heat loss through radiation paint, heat is distributed rapidly.

The beneficial effects of the utility model are on the heat radiation outer tube of LED fluorescent tube, to have installed intensive round pin post, and the outer surface of pin post has intensive convex sawtooth; On all outer surfaces of heat radiation outer tube, sprayed the heat loss through radiation paint.So greatly increased area of dissipation, the heat loss through radiation paint has increased again radiating rate simultaneously, and double action can be gone out dissipation of heat quickly, extends the Acceptable life of whole LED fluorescent tube.

The accompanying drawing explanation

Fig. 1 is the cross-sectional view of the utility model LED fluorescent tube heat abstractor.

In figure: 1. lamp pearl, 2. lamp plate, 3. heat-dissipating aluminium plate, 4. heat radiation outer tube, 5. pin post, 6. sawtooth, 7. heat loss through radiation paint.

The specific embodiment

The utility model is described in further detail below in conjunction with embodiment.

As shown in the figure, will install on the lamp plate 2 attaching heat-dissipating aluminium plates 3 of lamp pearl 1, then heat-dissipating aluminium plate 3 is arranged on above heat radiation outer tube 4, the intensive round pin post 5 of installing on the outer surface of heat radiation outer tube 4, at the intensive convex sawtooth 6 of outer surface installing of pin post 5; Again on all outer surfaces of heat radiation outer tube 4, comprise spraying heat loss through radiation paint 7 on the outer surface of the outer surface of pin 5 and sawtooth 6; Namely made the utility model LED fluorescent tube heat abstractor.

During use, after the heat on lamp plate 2 is transmitted on heat radiation outer tube 4, can distribute from all surface of heat radiation outer tube 4, because intensive pin post 5 and sawtooth 6 have increased area of dissipation greatly, brushed simultaneously heat loss through radiation paint 7, can accelerate radiating rate, heat is distributed rapidly.

Claims

1.LED the fluorescent tube heat abstractor, comprise heat radiation outer tube (4), it is characterized in that having installed intensive round pin post (5) on the outer surface of described heat radiation outer tube (4), the outer surface of pin post (5) has intensive convex sawtooth (6); On all outer surfaces of heat radiation outer tube (4), sprayed heat loss through radiation paint (7).