CN203595106U

CN203595106U - Spiral-convection heat dissipation type LED lamp tube

Info

Publication number: CN203595106U
Application number: CN201320808751.7U
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: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-05-14
Anticipated expiration: 2023-12-11

Abstract

A spiral-convection heat dissipation type LED lamp tube comprises LED lamp tube bodies and a heat dissipation aluminum plate and is characterized in that the LED lamp tube bodies are composed of an aluminum substrate, lamp beads, lamp bases and graphite. Holes are drilled in the aluminum substrate and filled with the graphite, then the bottom surfaces, where the LED lamp beads are installed, of the lamp bases directly make contact with the graphite, and the lamp bases are installed on the aluminum substrate. Dense spiral pillars are installed on the back face of the heat dissipation aluminum plate. Spiral airflow divergence pieces are arranged on the spiral pillars, and the LED lamp tube bodies adhere to the heat dissipation aluminum plate through silica gel. The spiral-convection heat dissipation type LED lamp tube has the advantages that the graphite is installed at the position, where heating is concentrated below the lamp bases, in the LED lamp beads, meanwhile, the spiral airflow divergence pieces are installed on the heat dissipation aluminum plate of the lamp tubes, so that the heating area is greatly increased, airflows flow in and out in an orientation mode, heat is effectively and rapidly dissipated, and the heat dissipation effect is improved. The spiral-convection heat dissipation type LED lamp tube is simple in structure, low in cost and suitable for being popularized widely.

Description

Spiral convection heat dissipation type LED head fluorescent tube

Technical field

The utility model belongs to LED technical field of lamps, particularly a kind of spiral convection heat dissipation type LED head fluorescent tube.

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 overall luminous efficiency.Power up outside under energy, the radiation recombination generation electroluminescent in electronics and hole, near the light radiating 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, quality quality, and most important with lamp body heat radiation itself, the heat radiation of the high-brightness LED lamp on market, usually adopts natural heat dissipation, and effect is unsatisfactory.The LED light fixture that LED light source is made, is made up of LED, radiator structure, driver, lens, and therefore heat radiation is also a part and parcel, and its luminous efficiency declines along with the rising of environment temperature, so the heat radiation of LED is extremely important; The efficiency of power supply is high, and its dissipation power is little, just little in light fixture internal heat generation amount, has also just reduced the temperature rise of light fixture, can delay the light decay of LED; If LED can not finely dispel the heat, its life-span also can be influenced.

At present, the heat dissipating method of LED mainly contains aluminium radiating fin, increases area of dissipation with aluminium radiating fin as a part for shell; Heat-conducting plastic shell, uses LED insulating radiation plastics substitution of Al alloy to make radiator; Surface emissivity radiating treatment, smears heat loss through radiation paint, and heat is taken away to lamp housing surface with radiation mode; Air fluid mechanics, utilizes lamp housing profile, produces convection current air; Fan, inner with long-service life high-efficiency fan reinforcement heat radiation at lamp housing; Heat pipe, is transmitted to shell radiating fin by heat by LED chip; Liquid ball bubble, is filled into transparency liquid higher thermal conductivity in lamp body ball bubble; Utilize lamp holder, as screw socket, have the lamp holder heat radiation of larger metal surface; These methods are each has something to recommend him, can both solve some problems, but have limitation.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of LED fluorescent tube that radiating fin is changed into intensive heat radiation borded pile, utilize the helical form air delivery sheet dredging flow on borded pile to make air-flow orientation flow to or flow out, to change existing ambient gas transfixion or to do on the spot rambling motion, the situation that causes heat effectively to distribute, increase area of dissipation, to comprehensively improve radiating efficiency simultaneously.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is a kind of spiral convection heat dissipation type LED head fluorescent tube, comprise LED fluorescent tube and heat-dissipating aluminium plate, LED fluorescent tube described in it is characterized in that is made by aluminium base, lamp pearl, lamp socket and graphite, wherein on aluminium base, dig hole, in hole, fill graphite, then the bottom surface of the lamp socket that LED lamp pearl has been installed has directly been contacted with graphite and lamp socket is arranged on aluminium base; On the back side of described heat-dissipating aluminium plate, install intensive borded pile, on borded pile, be provided with helical form air delivery sheet; Bonding by silica gel between described LED fluorescent tube and heat-dissipating aluminium plate.

When use, first heat on lamp socket is transmitted on graphite, be transmitted to rapidly on heat-dissipating aluminium plate through graphite and silica gel again, then distribute by the borded pile surface on heat-dissipating aluminium plate, make air-flow orientation flow to or flow out by helical form air delivery sheet again, heat is led out rapidly, because helical form air delivery sheet has greatly increased area of dissipation and made the directed turnover of air-flow, can make heat effectively and rapidly distribute.

The beneficial effects of the utility model are in LED lamp pearl, to be heated below more concentrated lamp socket graphite has been installed, can utilize like this graphite easily to pass thermal property is dispersed into the heat of LED lamp pearl generation rapidly on heat-dissipating aluminium plate by graphite, owing to having installed helical form air delivery sheet on the heat-dissipating aluminium plate of fluorescent tube, because helical form air delivery sheet has greatly increased area of dissipation and made the directed turnover of air-flow, can make heat effectively and rapidly distribute, improve radiating effect; The utility model is simple in structure, with low cost, is applicable to large-scale popularization.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of the utility model spiral convection heat dissipation type LED head fluorescent tube.

In figure: 1.LED fluorescent tube, 2. heat-dissipating aluminium plate, 3. silica gel, 11. aluminium bases, 12. lamp pearls, 13. lamp sockets, 14. graphite, 21. borded piles, 22. air delivery sheets.

The specific embodiment

Below in conjunction with embodiment, the utility model is described in further detail.

As shown in the figure, make spiral convection heat dissipation type LED head fluorescent tube, first make LED fluorescent tube 1, LED fluorescent tube 1 is made by aluminium base 11, lamp pearl 12, lamp socket 13 and graphite 14, by borehole on aluminium base 11, in hole, fill graphite 14, then the bottom surface of the lamp socket 13 that LED lamp pearl 12 has been installed is directly contacted with graphite 14 and lamp socket 13 is arranged on aluminium base 11; On the back side of heat-dissipating aluminium plate 2, install in addition intensive borded pile 21, helical form air delivery sheet 22 is set on borded pile 21; Finally, by bonding to LED fluorescent tube 1 and heat-dissipating aluminium plate 2 use silica gel 3, so make the utility model spiral convection heat dissipation type LED head fluorescent tube.

When use, first heat on lamp socket can be transmitted on graphite 14, be transmitted to rapidly on heat-dissipating aluminium plate 2 through graphite 14 and silica gel 3 again, then distribute by borded pile 21 surfaces on heat-dissipating aluminium plate 2, make air-flow orientation flow to or flow out by helical form air delivery sheet 22 again, heat is led out rapidly, because helical form air delivery sheet 22 has greatly increased area of dissipation and made the directed turnover of air-flow, can make heat effectively and rapidly distribute.

Claims

1. spiral convection heat dissipation type LED head fluorescent tube, comprise LED fluorescent tube (1) and heat-dissipating aluminium plate (2), LED fluorescent tube (1) described in it is characterized in that is made by aluminium base (11), lamp pearl (12), lamp socket (13) and graphite (14), wherein on aluminium base (11), dig hole, in hole, fill graphite (14), then the bottom surface of the lamp socket (13) that LED lamp pearl (12) has been installed has directly been contacted with graphite (14) and lamp socket (13) is arranged on aluminium base (11); On the back side of described heat-dissipating aluminium plate (2), install intensive borded pile (21), on borded pile (21), be provided with helical form air delivery sheet (22); Bonding by silica gel (3) between described LED fluorescent tube (1) and heat-dissipating aluminium plate (2).