CN203595016U

CN203595016U - Cross flow heat dissipation type LED panel lamp

Info

Publication number: CN203595016U
Application number: CN201320807903.1U
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 cross flow heat dissipation type LED panel lamp comprises a bottom plate and LED lamp beads, wherein the bottom plate is formed by sequentially sticking a heat dissipation plate, silica gel and an aluminum substrate, and crisscrossed longitudinal heat dissipation holes and transverse heat dissipation holes are dug in the formed bottom plate; the LED lamp beads are installed on the aluminum substrate through lamp holders, the gaps between the lamp holders are filled with graphite, and the graphite adheres to the aluminum substrate through the silica gel. The cross flow heat dissipation type LED panel lamp has the advantages that the position between the lamp holders provided with the LED lamp beads which are heated in a centralized mode is filled with graphite, and therefore heat generated by the LED lamp beads can be rapidly dissipated to the heat dissipation plate through graphite by the utilization of the characteristic that graphite easily transfers heat; the bottoms of the lamp holders directly make contact with the aluminum substrate for heat dissipation, heat is then conducted to the heat dissipation aluminum plate through silica gel, the crisscrossed heat dissipation holes are formed in the bottom plate formed by the aluminum substrate, silica gel and the heat dissipation plate, heat can be effectively and quickly dissipated, and therefore the heat dissipation effect is improved. The cross flow heat dissipation type LED panel lamp is simple in structure, low in cost, and suitable for being massively popularized.

Description

Percolation cooling type LED plate lamp

Technical field

The utility model belongs to LED technical field of lamps, particularly a kind of percolation cooling type LED plate lamp.

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 device that louvre is set in the base plate of LED board lamp, utilizes crisscross louvre in base plate that heat is outwards distributed, and increases 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 percolation cooling type LED plate lamp, comprise base plate and LED lamp pearl, it is characterized in that described base plate, by heat sink, silica gel and aluminium base successively bonding forming, has dug crisscross longitudinal louvre and heatsink transverse hole in the base plate after moulding; Described LED lamp pearl is installed on aluminium base by lamp socket, and the space between lamp socket and lamp socket is by graphite-filled, and graphite is bonding by silica gel and aluminium base.

When use, first a part in heat on lamp socket is transmitted on aluminium base, another part passes on aluminium base by graphite again, thereafter some distributes through louvre, another part distributes through heat sink, so greatly increase area of dissipation and heat radiation channel, can make heat effectively and rapidly distribute.

The beneficial effects of the utility model are to be heated, between more concentrated lamp socket, graphite to be installed in LED lamp pearl, can utilize like this graphite easily to pass thermal property is dispersed into the heat of LED lamp pearl generation rapidly on heat sink by graphite, directly contact aluminium base heat radiation of lamp socket bottom simultaneously, be transmitted on heat-dissipating aluminium plate via silica gel again, on the base plate forming at aluminium base, silica gel and heat sink, crisscross louvre is set simultaneously, 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 perspective view of the utility model percolation cooling type LED plate lamp.

Fig. 2 is the tangent plane structural representation of BB position in Fig. 1.

Fig. 3 is the tangent plane structural representation of AA position in Fig. 1.

In figure: 1. base plate, 2.LED lamp pearl, 3. heat sink, 4. silica gel, 5. aluminium base, 6. longitudinal louvre, 7. heatsink transverse hole, 8. lamp socket, 9. graphite.

The specific embodiment

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

As shown in the figure, make percolation cooling type LED plate lamp, first make base plate 1, by heat sink 3, silica gel 4 and aluminium base 5 successively bonding forming, then dig crisscross longitudinal louvre 6 and heatsink transverse hole 7 in base plate 1 after moulding; Then the lamp socket 8 that LED lamp pearl 2 has been installed is installed on aluminium base 5, graphite 9 is filled in the space between lamp socket 8 and lamp socket 8, simultaneously that graphite 9 is bonding by silica gel 4 and aluminium base 5; So, made the utility model percolation cooling type LED plate lamp.

When use, first a part in heat on lamp socket 8 is transmitted on aluminium base 5, another part passes on aluminium base 5 by graphite 9 again, thereafter some distributes through louvre, another part distributes through heat sink 3, so greatly increase area of dissipation and heat radiation channel, can make heat effectively and rapidly distribute.

Claims

1. percolation cooling type LED plate lamp, comprise base plate (1) and LED lamp pearl (2), it is characterized in that described base plate (1), by heat sink (3), silica gel (4) and aluminium base (5) bonding forming successively, has dug crisscross longitudinal louvre (6) and heatsink transverse hole (7) in the base plate (1) after moulding; It is upper that described LED lamp pearl (2) is installed in aluminium base (5) by lamp socket (8), and the space between lamp socket (8) and lamp socket (8) is filled by graphite (9), and graphite (9) is bonding by silica gel (4) and aluminium base (5).