CN201764303U

CN201764303U - Novel high power LED (light-emitting diode) lamp

Info

Publication number: CN201764303U
Application number: CN2010202741602U
Authority: CN
Inventors: 诸建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2011-03-16
Anticipated expiration: 2020-07-29

Abstract

The utility model relates to a novel high power LED (light-emitting diode) lamp which comprises an LED light source, an upper cover, a lower cover and a heat pipe, wherein a heat-conductive block is fixed inside the upper cover, the surface of the heat-conductive block is fixed with the LED light source, and the heat pipe and a radiator are simultaneously closely pasted at the outboard surface of the upper cover of the fixed surface of the heat-conductive block. The utility model has the advantages of effectively lowering the mould cost and other manufacturing costs of the lamp by a structure of separating the radiator from a casing of the lamp and simultaneously benefitting to the increasing of the heat radiating area of the radiator to ensure that a heat radiating structure is lighter.

Description

A kind of novel large-power LED light fixture

Technical field

The utility model relates to a kind of ligthing paraphernalia, and especially a kind of is light source with light emitting diode (LED), has the illuminating lamp of excellent heat dispersion performance.

Background technology

Light emitting diode (LED) as internationally recognized the 4th generation green illumination light source, have energy-saving and environmental protection, an advantage such as the life-span is long, light efficiency is high, radiationless, shock resistance, in today of global energy growing tension, and get most of the attention.But in the use of reality, problems such as the heat radiation of LED light fixture, cost height are restricting the large-scale application of LED always and are popularizing, and heat dissipation problem especially is directly connected to the performances such as brightness, light decay, stability, service life of LED light fixture.

At present, for solving the heat dissipation problem of LED, domestic many producers and engineers and technicians have done deep research on the one hand at this.Wherein, be in a kind of heat abstractor and LED street lamp patent of ZL200920129933.5 in the patent No., this heat abstractor comprise N root conduit and with the radiator of conduit equal amount, wherein N is a natural number; One end of every conduit is connected with a radiator, and the other end is connected with the conductor of outside pyrotoxin.Described radiator muff-joint is connected on the conduit, and conduit is to weld or touch mutually with being connected of conductor of outside pyrotoxin.This LED street lamp comprises the street lamp main body, and the street lamp main body comprises LED lamp group, power supply, and described LED lamp group contains heat-conducting plate; LED lamp group is electrically connected with power supply, and power supply is electrically connected with extraneous lamp stand line; Described LED street lamp also comprises above-mentioned heat abstractor, and this heat abstractor is positioned at the street lamp main body, and its every conduit is connected with the heat-conducting plate of LED lamp group.Has lightning arrester in the described power supply.

Though the perfect heat-dissipating of this patent, degree of protection height, its structure more complicated, the street lamp shell needs die sinking die casting, complicated shell mechanism will cause die cost high, yields is low, thereby increases cost of manufacture, and can significantly increase the weight of whole lamp; Simultaneously, on the led light source mounting means of street lamp, Plane Installation has also proposed very high requirement for the light source distribution curve flux, and technical difficulty is big, design and development cost height.

The utility model content

At the deficiency that above-mentioned prior art exists, the utility model provides a kind of weight slim and graceful, simple in structure, has the Novel LED lamp of excellent heat dispersion performance, long life simultaneously.To achieve these goals, technical solution adopted in the utility model is:

A kind of novel large-power LED light fixture includes led light source, loam cake, lower cover and heat pipe, is fixed with heat-conducting block in the described loam cake, and the heat-conducting block surface is fixed with led light source, is glued with heat pipe and radiator simultaneously at the loam cake lateral surface of heat-conducting block stationary plane;

Described heat-conducting block cross section is similar triangular structure, and led light source is individually fixed in inclined-plane, described heat-conducting block both sides;

Described spreader surface is provided with groove, and heat pipe is fixed in the described groove, and the surface of heat pipe exposed section and spreader surface are in same plane;

The lamp housing loam cake is provided with a holding tank, and radiator is fixed in the holding tank;

The heat-conducting block both sides are pressed fixing respectively by briquetting;

The briquetting both sides are provided with screw, and the screw in the screw is with the fixing inclined-plane of heat-conducting block both sides of briquetting.

The beneficial effect that the utility model reached: by radiator and lamp outer casing separated structures, can effectively reduce costs of manufacture such as light fixture die cost, help improving the area of dissipation of radiator simultaneously, make radiator structure slimmer and more graceful; That utilizes that heat pipe produces LED fast passes to lamp outer casing and radiator, makes between heat that great power LED produces and lamp housing, the radiator to reach thermal balance fast, carries out high efficiency and heat radiation; Led light source is installed on the heat-conducting block, can make heat obtain fast and evenly transmitting, and helps the luminous intensity distribution design of light fixture simultaneously more, and especially street lamp, Tunnel Lamp etc. need the light fixture of rectangular light spot; Overall structure of the present utility model is simple, cost of manufacture is cheap, be suitable for batch machining, production and popularization.

Description of drawings

Fig. 1 is the stereogram of a preferred embodiment of the present utility model;

Fig. 2 is the cutaway view of a preferred embodiment of the present utility model;

Fig. 3 is the perspective exploded view of a preferred embodiment of the present utility model;

Fig. 4 is the cutaway view of another preferred embodiment of the present utility model.

The specific embodiment

From the schematic diagram of Fig. 1 as can be known, the face shaping of present embodiment is a street lamp, is made up of radiator 3, loam cake 1, lower cover 2, lampshade 5 etc. respectively.Wherein, radiator 3 is positioned on the loam cake 1, and forms an integral body with loam cake 1, and loam cake 1 and lower cover 2 fuse respectively by linking closely, and are fixed with lampshade 5 in lower cover 2, and the three combines closely and forms a whole lamp.

One end of radiator 3 is the plane, and the other end is distributed with numerous fin, increases the area of dissipation of light fixture, and in manufacturing process, fin can be made into uneven, striped, increases the contact area of fin and air, helps to improve radiating efficiency.

Radiator 3 is that copper, the contour heat conductive metal of aluminium or alloy are made, and can carry out the quick conduction of heat.Considering reasons such as material cost and technology, generally adopt aluminum alloy materials to make.On manufacture craft, mainly be to adopt extrusion process to come moulding, with respect to passing through the die casting moulding.Extrusion process is owing to manufacturing technology maturation, technology are fairly simple, so manufacture with low cost.

Loam cake 1 and lower cover 2 also adopt metal material to make, and in protection light fixture internal structure, play good protective action on the one hand; Can also can carry out auxiliary heat dissipation on the other hand, improve the area of dissipation of light fixture.On manufacture craft, the die casting moulding, comparatively expensive on the cost.Therefore,, can effectively reduce the complexity of loam cake 1, thereby reduce the cost manufacturing cost of mould, increase area of dissipation simultaneously by with radiator 3 and loam cake 1 separated structures.

As shown in Figure 2, present embodiment is made up of radiator 3, heat pipe 6, loam cake 1, screw 11, briquetting 8, light source 7, reflector 9, lower cover 2 and lampshade 5 etc.Wherein, lamp housing loam cake 1 is provided with a holding tank, and radiator 3 is fixed in the holding tank.Be fixed with heat-conducting block 4 in the lamp housing loam cake 1, the cross section of heat-conducting block 4 is similar triangular structure, and an end is fixed on the inner surface of loam cake 1, is fixed with led light source 7 respectively on the inclined-plane, heat-conducting block 4 both sides in addition.Reflector 9 is fixed on the heat-conducting block 4, and the centre is provided with the perforate of led light source 7 should be arranged, and makes light source 7 give prominence to the mounting plane of reflector 9.

Heat-conducting block 4 is fixed by the briquetting 8 in both sides, and the both sides of briquetting 8 are provided with screw, the inclined-plane, both sides of the screw 11 compressing heat-conducting blocks 4 in the screw, thus produce a thrust that makes progress for heat-conducting block 4, make heat-conducting block 4 be fastened on the surface of loam cake 1.Such structure can make heat-conducting block 4 closely contact with loam cake 1 on the one hand, improves heat transfer efficiency; On the other hand, in maintenance process from now on, more easy to removal and installation.

Surface at radiator 3 is provided with groove, and heat pipe 6 is fixed in the described groove, and the surface of heat pipe 6 exposed sections and radiator 3 surfaces are in same plane, and lamp housing loam cake 1 lateral surface of heat-conducting block 4 stationary planes has contacted heat pipe 6 and radiator 3 simultaneously.That utilizes that heat pipe 6 produces LED fast passes to outer casing upper cover 1 and radiator 3, makes between heat that great power LED produces and lamp housing, the radiator to reach thermal balance fast, carries out high efficiency and heat radiation.

Led light source 7 is fixed in the process of heat-conducting block 4, can fill Heat Conduction Material between led light source 7 and substrate, as heat-conducting cream etc., to increase contact area between the two, improves heat conductivility.On fixed form, can adopt screw, buckle, welding etc. that led light source 7 is combined closely on the surface of heat-conducting block 4.Wherein, led light source 7 quantitatively can adopt single-chip package or the integrated encapsulation of multicore for one or more, and the wavelength of light source can be visible or black light wave band, or mixed light.

Reflector 9 is a bowl structure, and inner surface is a parabolic shape, but does not limit to this shape, can be for rules or irregularly shaped such as square, straight tubulars, to adapt to different light fixture profile needs.The inner surface of reflector 9 has passed through plated film or polishing, can improve the reflecting effect of light.Making on the material, reflector 9 adopts metal or total making such as copper, aluminium, to play the effect of auxiliary heat dissipation.

Fig. 3 is in the three-dimensional exploded view of this example, and we can see, are manufactured with a holding tank on the surface of loam cake 1, and radiator 3 and heat pipe 6 just are fixed in this radiating groove.In the application process of reality, we also can not make holding tank, radiator 3 and heat pipe 6 directly are fixed on the surface of loam cake 1.

Briquetting 8 is a list structure, and a side is a ramp structure, is used for fixing heat-conducting block 4.Briquetting 8 inside also are manufactured with screw, and screw is a through-hole structure, by screw 11 compressing heat-conducting blocks 4, make it be fastened on loam cake 1 surface.

Power supply 10 provides constant current power supply, driving light source work for led light source 7.Structurally, power supply 10 is hermetic waterproof and dustproof structure, and shell is the aluminum or aluminum alloy metal, and the heat of driving power 10 can be dispersed in the air fast.On internal circuit, be provided with automatic safety devices such as overcurrent, overvoltage, short circuit, lightning protection, prevent that fortuitous event from appearring in LED street lamp in the course of the work, guarantee its stable normal operation.

Lampshade 5 can be transparent, translucent or frosted structure, also can make the striped of anti-dazzle on the surface, can regulate according to different needs.On material, general glass, the plastic or other material of adopting of lampshade 5 are made, and on the one hand, can light transmission better, the light losing that sees through be less; On the other hand, have stronger hardness, can play certain protective action lamp interior.

Fig. 4 is the profile of the another preferred embodiment of the utility model.In the drawings, we as can be seen, embodiment is made up of radiator 3, loam cake 1, heat pipe 6, heat-conducting block 4, reflector 9, light source 7, lower cover 2 and lampshade 5 etc.Wherein, loam cake 1 and lower cover 2 are a square structure, and lamp housing loam cake 1 is provided with a holding tank, and radiator 3 is fixed in the holding tank.Be fixed with heat-conducting block 4 in the lamp housing loam cake 1, the cross section of heat-conducting block 4 is a square structure, and an end is fixed on the inner surface of loam cake 1, other end fixed L ED light source 7.

The shape of heat-conducting block 4 can be difformities such as the similar triangular form in cross section, square, circular arc, with the fixed form of led light source 7 on, can directly adopt screw to be fixed on the surface of loam cake 1, with respect to the fixed form that adopts briquetting, this structure is simpler, and is easier for installation.

The utlity model has good performance of heat dissipation, slim and graceful lamp body structure, can adopt different designs in shape, form different light fixtures to form, but any simple or surperficial change is all in protection domain of the present utility model.

Claims

1. novel large-power LED light fixture, include led light source, loam cake, lower cover and heat pipe, it is characterized in that being fixed with heat-conducting block in the described loam cake, the heat-conducting block surface is fixed with led light source, is glued with heat pipe and radiator simultaneously at the loam cake lateral surface of heat-conducting block stationary plane.

2. according to claims 1 described a kind of novel large-power LED light fixture, it is characterized in that described heat-conducting block cross section is similar triangular structure, led light source is individually fixed in inclined-plane, described heat-conducting block both sides.

3. according to claims 1 or 2 described a kind of novel large-power LED light fixtures, it is characterized in that described spreader surface is provided with groove, heat pipe is fixed in the described groove, and the surface of heat pipe exposed section and spreader surface are in same plane.

4. according to claims 3 described a kind of novel large-power LED light fixtures, it is characterized in that described lamp housing loam cake is provided with a holding tank, radiator is fixed in the holding tank.

5. according to claims 4 described a kind of novel large-power LED light fixtures, it is characterized in that described heat-conducting block both sides are pressed fixing respectively by briquetting.

6. according to claims 5 described a kind of novel large-power LED light fixtures, it is characterized in that described briquetting both sides are provided with screw, the screw in the screw is with the fixing inclined-plane of heat-conducting block both sides of briquetting.