CN201462495U

CN201462495U - LED lamp structure with novel heat abstractor

Info

Publication number: CN201462495U
Application number: CN2009201118950U
Authority: CN
Inventors: 王益民; 赵曙云
Original assignee: KUNMING JIUTIAN TECHNOLOGY Co Ltd
Current assignee: KUNMING JIUTIAN TECHNOLOGY Co Ltd
Priority date: 2009-09-04
Filing date: 2009-09-04
Publication date: 2010-05-12
Anticipated expiration: 2019-09-04

Abstract

The utility model relates to an LED lamp structure with a novel heat abstractor, comprising an outer housing the housing body of which is provided with a ventilating hole, an LED core chip, a heat dissipation pad and a heat abstractor; wherein the LED core chip, the heat dissipation pad and the heat abstractor are arranged inside an outer cover; the LED core chip is fixed on the heat dissipation pad by an electric induction silver glue; and the heat dissipation pad is connected with the heat abstractor for heat dissipation. The heat abstractor has obvious heat dissipation effect, so that the working temperature of the LED core chip is controlled in a normal range for a long time without harmful dazzle and stroboflash, thus eliminating dazzling, visual fatigue and visual interference caused by harmful dazzle, and effectively ensuring 50,000-hour service life of the LED lamp.

Description

A kind of LED fitting structure with heat sinking device

Technical field

The utility model relates to a kind of LED fitting structure, and especially a kind of have a heat sinking device LED fitting structure.

Background technology

The LED light fixture is compared with conventional lamp, have many-sided advantages such as power consumption is little, life-span length, environmental protection, LED light fixture power consumption as equal brightness has only 10% of incandescent lamp, the LED lamp life can reach 40,000 hours, life-span than white light is grown 5 times, life-span than incandescent lamp is grown 50 times, and these advantages make that the occupation rate of market of LED light fixture is more and more higher.But, because the LED light fixture is a photoelectric device, have only 15%～25% electric energy to convert luminous energy in the course of the work, remaining electric energy nearly all converts heat energy to, and led chip temperature is at work constantly raise, and spreads out of if heat is untimely, when surpassing 65 ℃, will influence the service life of LED light fixture,, even also have the danger of burning if temperature surpasses 90 ℃.Therefore, for the LED light fixture, heat radiation is the major technology bottleneck.

The heat radiation of present LED light fixture is to dispel the heat by heat-conducting plate and ambient air convection current that aluminium or copper become, but the effect of such radiating mode heat radiation is also not obvious, when the LED light fixture longer disposable service time, temperature will surpass 65 ℃, influences the service life of LED light fixture, simultaneously, the heat-conducting plate that is made of aluminum or copper is too heavy, make light fixture too thick and heavy, inconvenience is used, and also influences its outward appearance.In addition, when the LED light fixture was used as street lamp, in the time of rainy day, rainwater invaded in the lamp housing housing easily, corroded led chip, had had a strong impact on the life-span of LED light fixture.

Summary of the invention

The heat radiation of the LED of being exactly light fixture to be solved in the utility model and rainy day rainwater easily corrode led chip, influence the LED light fixture problem in service life, a kind of LED fitting structure with heat sinking device is provided.

A kind of LED fitting structure of the present utility model with heat sinking device, comprise enclosing cover, led chip, cooling pad and heat abstractor, led chip, cooling pad and heat abstractor are positioned at enclosing cover inside, led chip by silica stationary on cooling pad, cooling pad is received on the heat abstractor and is dispelled the heat, it is characterized in that described enclosing cover is by two side covers, base plate and top cover constitute, base plate rear end sets out tank, described heat abstractor is by heat pipe, fin constitutes, heat pipe one end inserts on the cooling pad, and the other end is fixed on the enclosing cover top cover after passing the fin center;

Described heat pipe is an at least one copper heat pipe;

Described fin is at least two round-shaped aluminum or a copper fin;

Between first, second of the described fin sealing device is installed;

Described led chip skin has lens;

On described two side covers air-vent is arranged.

When using the LED light fixture; the outer field lens of led chip have the effect of optically focused; the heat that can improve the brightness .LED chip generation of LED light fixture is absorbed by heat pipe; fin and air heat exchange heat radiation by linking to each other again with heat pipe; the air-vent that covers outward can improve the efficient of fin and air heat exchange heat radiation; by increasing fin heat radiation effectively expansion area of dissipation; with the fin science be designed to round-shaped; can make raw material one timing of making fin; the area of dissipation maximum; it is minimum that production cost is dropped to. when rainy day; first of fin; the sealing device of installing between second plays the effect of protection led chip; rainwater enters in the enclosing cover; because first of fin; between second sealing device is installed; rainwater will flow to effluent trough along fin; flow out from effluent trough; after avoiding the rain erosion led chip; shorten the led chip life-span. when needing repairing the LED light fixture; can open the both sides side cover of enclosing cover; the mode that the axle horizontal direction of both sides side cover between top cover and base plate opened is opened; convenient, also avoided when the time dangerous problem that vertical direction is opened simultaneously in work high above the ground.

This heat abstractor radiating effect is obvious, the operating temperature long-term control that makes led chip does not have bad dazzle, no stroboscopic in normal range (NR), dazzling, visual fatigue and the sight line of having eliminated that bad dazzle causes are disturbed, fully guarantee 50,000 hours service life of led light source, maintenance cost is low.Avoided the heat-conducting plate that is made of aluminum or copper too heavy simultaneously, made light fixture too thick and heavy, the defective that inconvenience is used.

Description of drawings

Fig. 1 is the vertical view structural representation of the utility model embodiment 1

Fig. 2 is the front view structural representation of the utility model embodiment 1

Fig. 3 is the utility model embodiment 1A-A face cutaway view

Fig. 4 is the structural representation of the utility model embodiment 1

Fig. 1, Fig. 2, Fig. 3, among Fig. 4, enclosing cover 1, led chip 2, cooling pad 3, fin 4, heat pipe 5, air-vent 6, effluent trough 7, sealing device 8, lens 9, side cover 10, base plate 11, top cover 12, axle 13

The specific embodiment

Embodiment 1: a kind of LED fitting structure with heat sinking device, comprise enclosing cover 1, led chip 2, cooling pad 3,14 copper fin 4 and eight copper heat pipes 5 that caliber is 8mm, enclosing cover 1 is by two side covers 10, base plate 11 and top cover 12 constitute, axle 13 horizontal directions of two side covers 10 between top cover 12 and base plate 11 are opened, base plate 11 rear ends are provided with four effluent troughs 7, led chip 2, cooling pad 3, fin 4 and heat pipe 5 are positioned at enclosing cover 1 inside, led chip 2 by silica stationary on cooling pad 3, heat pipe 5 one ends insert on the cooling pad 3, the other end is fixed on enclosing cover 1 top cover 12 4 first of fin after passing fin 4 centers, be equipped with between second on 9, two side covers 10 of sealing device air-vent 6 is arranged, led chip 2 skins have on 10, two side covers 10 of lens air-vent 6 are arranged.

When using the LED light fixture, the heat that led chip 2 produces is absorbed by heat pipe 5, again fin 4 heat radiations by linking to each other with heat pipe 5.Guaranteed that led chip 2 operating temperature long-term control about 56 ℃, are no more than 60 ℃.When rainy day, rainwater enters in the enclosing cover 1, flows out from effluent trough 8, avoids rain erosion led chip 2, fully guarantees 50,000 hours service life of LED light fixture.When needing repairing the LED light fixture, can open enclosing cover 1 both sides side cover 10, the mode that side cover 10 adopts horizontal direction to open, convenient, also avoided when the time dangerous problem that vertical direction is opened simultaneously in work high above the ground.

Claims

1. LED fitting structure with heat sinking device, comprise enclosing cover (1), led chip (2), cooling pad (3) and heat abstractor, led chip (2), cooling pad (3) and heat abstractor are positioned at enclosing cover (1) inside, led chip (2) by silica stationary on cooling pad (3), cooling pad (3) is received on the heat abstractor and is dispelled the heat, it is characterized in that described enclosing cover (1) is by two side covers (10), base plate (11) and top cover (12) constitute, base plate (11) rear end is provided with effluent trough (7), described heat abstractor is by heat pipe (5), fin (4) constitutes, heat pipe (5) one ends insert on the cooling pad (3), and the other end is fixed on enclosing cover (1) top cover (12) after passing fin (4) center.

2. a kind of LED fitting structure with heat sinking device as claimed in claim 1 is characterized in that described heat pipe (5) is an at least one copper heat pipe (5).

3. a kind of LED fitting structure with heat sinking device as claimed in claim 1 is characterized in that described fin (4) is at least two round-shaped aluminum or a copper fin (4).

4. a kind of LED fitting structure with heat sinking device as claimed in claim 1 is characterized in that between (4) first, second of the described fin sealing device (8) being installed.

5. a kind of LED fitting structure with heat sinking device as claimed in claim 1 is characterized in that described led chip (2) skin has lens (9).

6. a kind of LED fitting structure with heat sinking device as claimed in claim 1 is characterized in that on two side covers (10) of described enclosing cover (1) air-vent (6) being arranged.