CN201764330U

CN201764330U - High-power LED lamp

Info

Publication number: CN201764330U
Application number: CN2010205318215U
Authority: CN
Inventors: 黄鹤鸣
Original assignee: 黄鹤鸣
Current assignee: Shenzhen Juzuo Lighting Co.,Ltd.
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2011-03-16
Anticipated expiration: 2020-09-08

Abstract

The utility model discloses a high-power LED lamp, comprising a power supply, a radiating module, a lampshade and a PCB board provided with an LED light source; the bottom of the radiating module is a plane and is contacted with the surface of the PCB board; interfaces contacted with turnup surface at the top of the lampshade are installed around the periphery of the plane bottom of the radiating module; the radiating fin of the radiating module is in radial pattern and adopts thin aluminum sheet to fasten together. Compared with the previous structure, the contact area of the radiating module bottom and the PCB provided by the technical scheme is maximized, thereby having larger radiating area and better radiating effect. Simultaneously, the radiating module adopts thin aluminum sheet to fasten together so that the weight of the high-power LED lamps is greatly reduced.

Description

A kind of high-power LED light fixture

Technical field

The utility model relates to light fixture, relates in particular to the large-power lamp that a kind of light source is LED, this light fixture have one in light weight, the heat abstractor of good heat dissipation effect.

Background technology

Light emitting diode (light-emitting diode LED) can send the light of certain brightness, and brightness can be regulated by electric current or voltage again, and itself is shock-resistant again, anti-vibration, and glow color is very abundant, and the transition of color is also very soft.Simultaneously service life long especially, it is reported life-span of LED lamp be ordinary incandescent lamp 20-30 doubly, be more than 10 times of conventional fluorescent lamps life-span, simultaneously, LED lamp source is than incandescent lamp economize on electricity 87%, than fluorescent lamp economize on electricity 50%.Therefore the LED light fixture, is used because of it has power saving, life-span length, safety, advantages such as response is fast, volume is little, rich color very widely as the alternative source of light in places such as the modern life, office.The structure of existing LED light fixture generally includes: the lamp holder that joins with power supply, in lamp holder, be provided with the drive plate that is used for the driving LED light source, the reflection shield that is used for reflection ray, be installed in the radiator that is used for dispelling the heat between lamp holder and the reflection shield, led light source, wherein led light source is fixed by heat carrier and radiator, and a large amount of heats that distribute during the led light source operate as normal are dispersed in the air by radiator, to keep the normal working temperature of led light source.The heat radiation module that is used for LED illuminating and heat radiating field at present mainly is that aluminium extruded and die casting dual mode are in the majority, and the aluminium extruded type heatsink mass is excessive, and allowance is big.And the die casting radiator is subjected to the influence of himself material behavior, and the material of making radiator now generally adopts ADC10 or ADC12, and radiating effect is undesirable.

In addition, existing crowded type heat radiation module is feasible for solving lower-powered LED illuminating product, but just there are the following problems for solving high-power product: 1. the contact area with thermal source is little, is unfavorable for that temperature conducts fast; 2. go to change profile as cooperating lampshade, area of dissipation will reduce a lot, is unfavorable for heat radiation; 3. do not utilize lampshade to dispel the heat; 4. quality is very big, says inadvisable from security standpoint.

The utility model content

The purpose of this utility model provides a kind of high-power LED light fixture, it is little that the heat radiation module of this light fixture has overcome in the prior art contact area with thermal source, be unfavorable for that temperature conducts, goes to change as cooperating lampshade the words of profile fast, area of dissipation will reduce a lot, is unfavorable for heat radiation, does not utilize deficiencies such as lampshade dispels the heat, quality is very big.

A kind of high-power LED light fixture that the utility model provides, comprise power supply, heat radiation module, lampshade and be provided with the pcb board of led light source, described heat radiation module bottom is that the plane contacts with described pcb board face, around the planar base of described heat radiation module, be provided with the interface that contacts with described lampshade top flange face, the fin of described heat radiation module is radial, adopts thin aluminium flake to snap together.

Further, in the above-mentioned high-power LED light fixture: hollow bolt is set in described heat radiation module axle center, described hollow bolt one end and described power supply tighten up, tightly in described heat radiation module bottom, the connection lead from described power supply to described pcb board passes from described hollow bolt the other end with described pcb board bolt.

Further, in the above-mentioned high-power LED light fixture: between described heat radiation module bottom and described pcb board, be provided with heat-conducting cream.

Further, in the above-mentioned high-power LED light fixture: the power supply fixed head that is provided with fixing described power supply at described heat radiation module top.

Compare with structure in the past, heat radiation module bottom that the technical program provides and the contact area maximization of PCB, area of dissipation is bigger, and radiating effect is better.Simultaneously, this heat radiation module adopts thin aluminium flake to snap together composition, and the weight of this high-power LED light fixture is reduced greatly.

Description of drawings

Fig. 1 is the structural representation of the utility model high-power LED lamp;

Fig. 2 is the enlarged drawing of A among Fig. 1.

Fig. 3 is the utility model outline drawing.

Among the figure: 1, power supply, 2, the heat radiation module, 3, lampshade, 4, pcb board, 5, heat-conducting cream, 6, the power supply fixed head, 7, hollow bolt, 8, screw.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model embodiment provides a kind of high-power LED light fixture, this light fixture has an excellent radiation performance, lightweight heat radiation module 2, as shown in Figure 1, a kind of high-power LED light fixture of present embodiment, comprise power supply 1, heat radiation module 2, lampshade 3 and the pcb board 4 that is provided with led light source, here the led light source that is provided with on the pcb board 4 also is a thermal source, need distribute as early as possible, so module 2 bottoms of dispelling the heat are that the plane contacts with 4 of the pcb boards that is provided with led light source, be provided with the interface that contacts with described lampshade 3 top flange faces around the planar base of heat radiation module 2, as shown in Figure 2, lampshade 3 top flange contact with heat radiation module 2 bottom periphery faces, fixing by screw 8, pcb board 4 is arranged in the middle of the lampshade 3, is provided with heat-conducting cream 5 between heat radiation module 2 bottoms and the described pcb board 4, the fin of heat radiation module 2 is radial in the present embodiment, is to adopt thin aluminium flake to snap together composition.In heat radiation module 2 axle center hollow bolt 7 is set, described hollow bolt 7 one ends and described power supply 1 tighten up, and tightly in heat radiation module bottom, the connection lead from power supply 1 to described pcb board 4 passes from hollow bolt 7 other end with pcb board 4 bolts.In the present embodiment, power supply 1 itself also is a pyrotoxin, and heat radiation module 2 also needs to be power supply 1 heat radiation simultaneously, and for this reason, heat radiation module 2 tops are provided with power supply fixed head 6 fixing described power supplys 1.

Present embodiment has following characteristics:

Between heat radiation module bottom and the pcb board for face contact, the centre is a heat-conducting cream, help raising heat conductivility;

2. the fin of heat radiation module is radial, and as shown in Figure 3, the area of dissipation area of structure more in the past is big, can very fast heat radiation by free convection;

3. utilize lampshade edge flange and heat radiation module EDGE CONTACT, can dispel the heat to PCB simultaneously;

4. the heat radiation module adopts very thin aluminium flake to snap together, and all wanting of die casting more in the past of its quality or crowded type is light, safe in utilization more secure.

5. power supply output line links by hollow bolt and PCB, can avoid lead to be exposed in the air, plays waterproof and dustproof effect.

Compare with structure in the past, the heat radiation module bottom of present embodiment and contact area maximization as the PCB of thermal source, area of dissipation is bigger, and radiating effect is better.Simultaneously, the top fixes by a power supply fixed head and power supply, in to power supply heat sinking, has increased the power supply mounting stability.

Claims

1. high-power LED light fixture, comprise power supply (1), heat radiation module (2), lampshade (3) and be provided with the pcb board (4) of led light source, it is characterized in that: described heat radiation module (2) bottom contacts with described pcb board (4) face for the plane, be provided with the interface that contacts with described lampshade (3) top flange face around the planar base of described heat radiation module (2), the fin of described heat radiation module (2) is radial.

2. high-power LED light fixture according to claim 1, it is characterized in that: hollow bolt (7) is set in described heat radiation module (2) axle center, described hollow bolt (7) one ends and described power supply (1) tighten up, tightly in described heat radiation module (2) bottom, the connection lead from described power supply (1) to described pcb board (4) passes from described hollow bolt (7) other end with described pcb board (4) bolt.

3. high-power LED light fixture according to claim 1 is characterized in that: be provided with heat-conducting cream (5) between described heat radiation module (2) bottom and described pcb board (4).

4. according to arbitrary described high-power LED light fixture in the claim 1 to 3, it is characterized in that: the power supply fixed head (6) that is provided with fixing described power supply (1) at described heat radiation module (2) top.