CN203309614U

CN203309614U - High-power light-emitting diode (LED) spotlight capable of radiating actively

Info

Publication number: CN203309614U
Application number: CN2013203661242U
Authority: CN
Inventors: 何强
Original assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2013-11-27
Anticipated expiration: 2023-06-24

Abstract

The utility model discloses a high-power light-emitting diode (LED) spotlight capable of radiating actively. The high-power LED spotlight capable of radiating actively comprises a lamp housing and a lamp cap, wherein a surface cover is mounted at the front end of the lamp housing; a lens, a reflecting cup, an LED light source, a radiating fin and a radiating fan are mounted in the lamp housing sequentially; a driving power supply is also mounted in the lamp housing; the input end of the driving power supply is connected with the lamp cap; the output end of the driving power supply is connected with the LED light source and the radiating fan; air outlet holes which are used for coordinating ventilation of the radiating fan are formed in the surface cover. The high-power LED spotlight capable of radiating actively adopts light distribution combined design of a COB (chip on board) LED surface light source, a single single-focus lens and a single single-focus reflecting cup, so that light loss is greatly reduced, double-image light caused by multiple LEDs is avoided, and uniformity is improved; an aluminum radiator, a high-rotating-speed fan and an excellent airflow air flue form a small-sized high-efficiency radiating system, so that LED temperature adjustment reaches a safe steady state and the service life of the LED spotlight is guaranteed.

Description

A kind of high-power LED spotlight of active heat removal

Technical field

The utility model relates to a kind of LED shot-light, is specially a kind of high-power LED spotlight of tool active heat removal function.

Background technology

In the prior art, the light source that uses of lighting device mainly comprises incandescent lamp, fluorescent lamp and LED(light emitting diode) lamp.Wherein, incandescent lamp belongs to the thermoluminescence body, its electric energy consumed at work is mainly used in the heat filament element, the filament element is at high temperature luminous, but this operation principle, the electric energy overwhelming majority that light source consumes is converted into heat energy, only has the electric energy of small part to be converted into luminous energy, and photoelectric conversion rate is lower.Fluorescent lamp belongs to gas-discharge lamp, also belong to the thermoluminescence body, on photoelectric conversion rate, improve than incandescent lamp, but, it needs relatively high operating ambient temperature, difficulty in starting under cryogenic conditions, and the luminescent substance be filled with in fluorescent lamp is in case overflow and can to environment, the people be penetrated and damage when fluorescent tube breaks.The common defects of the lighting device of these thermoluminescence bodies of incandescent lamp and fluorescent lamp is exactly that on-off effect speed is slow, light efficiency is low, the life-span is short.

In recent years, LED is used gradually as new light source technology in lighting apparatus, the LED light source principle of luminosity does not belong to the thermoluminescence principle, and LED is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity, its caloric value is few, belong to a kind of cold light source, energy conversion rate is high, and during switch, reaction speed is fast, during its work, require lower operating temperature, too high operating temperature can be used its lost of life even to burn.In use, its light-emitting component and circuit board and driving power also can produce certain heat to the LED light source device, need in time this dissipation of heat to be gone out, and are in best operating temperature to keep the LED element, and use can increase the service life, and improves light efficiency.All there is the difficult problem that radiating efficiency is not high, service life is not long, power can't promote, volume is larger in current LED shot-light, is the technical problem that industry technical staff must solve therefore improve radiating efficiency, the product miniaturization of LED shot-light.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides that a kind of radiating efficiency is high, long service life, the high-performance high-power LED spotlight that power, beam uniformity and illuminance are good.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of high-power LED spotlight of active heat removal, comprise lamp housing and lamp holder, LED light source, fin and radiator fan are installed in described lamp housing successively, driving power also is installed in described lamp housing, the input of described driving power connects described lamp holder, and the output of described driving power connects described LED light source and described radiator fan.

Preferential, described LED light source is that (COB is chip On board to integrated optical source (COB) LED light source, exactly bare chip is sticked on interconnect substrates by conduction or non-conductive adhesive, then carry out Bonding and realize its electrical connection, COB LED is again COB LED source or COB LED module).

Preferential, described fin is aluminium heat sink, described fin is screwed in described lamp housing.Between described fin and described LED light source contact-making surface, also scribble heat dissipating silicone grease.

Preferential, reflector also is installed in described lamp housing, described LED light source is installed on the center of described reflector bottom.

Preferential, the front end of described reflector also is equipped with lens, and described lens are single focal length lenses.

Preferential, described lamp housing front end also is equipped with cover, and described cover is connected combination with described lamp housing by screw.Wherein, on described cover, also offer exhaust vent.

The beneficial effects of the utility model are: (1) this high-power LED spotlight is by adopting the luminous intensity distribution Combination Design of high-power COB LED area source, single single focal length lenses and single single focal length reflector, the light that reflector can overflow lens is again collected and is reflexed in lens again, make light loss reduce greatly, the optical combination of single focal length makes light throw away in single holistic mode, the ghost image light of avoiding plurality of LEDs to cause, its uniformity is promoted, (2) adopt Aluminium Radiator, high rotating speed fan and good air-flow Duct design, form the efficient cooling system of miniaturization, Aluminium Radiator is delivered to the heat absorption of LED light source on radiating fin, high rotating speed fan accelerates the circulation of radiator surrounding air, constantly heat diffusion is arrived to the lamp body outside, good air-flow Duct design has improved speed and the efficiency of thermal diffusion, make LED joint temperature reach safe stable state, ensured the LED life-span, main, passive heat radiation reduces greatly in conjunction with being able to the area of dissipation that traditional heat dissipation design is necessary, whole light fixture miniaturization has been facilitated in the miniaturization of radiator.

The accompanying drawing explanation

Fig. 1 is the structure explosive view of the high-power LED spotlight of a kind of active heat removal of the utility model;

Fig. 2 is the perspective view of the high-power LED spotlight of a kind of active heat removal of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further detailed.

As Figure 1-Figure 2, a kind of high-power LED spotlight of active heat removal, comprise lamp housing 1 and lamp holder 2, lamp housing 1 is formed with cavity, LED light source 11, fin 12 and radiator fan 13 be installed successively in this cavity, driving power 14 also is installed in lamp housing 1, the input of driving power 14 connects lamp holder 2, the output of driving power 14 connects LED light source 11 and radiator fan 13, reflector 15 also is installed in lamp housing 1, LED light source 11 is installed on the center of reflector 15 bottoms, and the front end of reflector 15 also is equipped with lens 16.Wherein, lens 16 are single focal length lenses, and LED light source 11 is the COB LED light source.

Preferential, this fin 12 is aluminium heat sink, fin 12 is screwed in lamp housing 1; Between fin 12 and LED light source 11 contact-making surfaces, also scribble heat dissipating silicone grease.

Preferential, the front end of lamp housing 1 also is equipped with cover 3, and cover 3 is connected in conjunction with fixing by screw with lamp housing 1.Wherein, on cover 3, also offer exhaust vent 31.

Below in conjunction with accompanying drawing 1, sketch assembling process of the present utility model and operation principle: at first, to after the high performance heat-conducting silicone grease of LED light source 11 coating, be screwed in the cavity of fin 12, after being positioned over reflector 15, lens 16 on LED light source 11 light sources again, cover 3 is buckled on the fin 12 that places LED light source 11, reflector 15 and lens 16, then with screw locking, forms integrated light source module; Then, driving power 14 and radiator fan 13 are put into to lamp housing 1 successively and adjust the screw hole position and form the power supply module with screw locking; Then, light source module lead-in wire is welded in after power supply module output with growing and runs through screw and by rear end, power supply module and light source module are locked according to positive-negative polarity; Finally, power supply module lead-in wire (input of driving power 14) is welded on lamp holder 2, with special tool(s), lamp holder 2 is pressed abd fixed on to the rear end of lamp housing 1 to form integral body.After lamp holder 2 was screwed into the lamp socket energising, driving power 14 was started working one group of pressure-stabilizing constant flow signal of output to the power supply of COB LED light source, for light source luminescent; Export another group direct current signal to radiator fan 13 for fan running, now the COB LED light source is normally luminous, heat is transmitted on fin 12, radiator fan 13 runs well and lasting air quantity is provided is fin 12 high efficiency and heat radiations.

As described above, it is only this novel preferred embodiment, when not limiting with this scope of this novel enforcement, the simple equivalence of namely generally doing according to this novel claim and novel description changes and modifies, and all still belongs in the scope that this new patent contains.

Claims

1. the high-power LED spotlight of an active heat removal, comprise lamp housing and lamp holder, it is characterized in that, LED light source, fin and radiator fan are installed in described lamp housing successively, driving power also is installed in described lamp housing, the input of described driving power connects described lamp holder, and the output of described driving power connects described LED light source and described radiator fan.

2. the high-power LED spotlight of a kind of active heat removal according to claim 1, it is characterized in that: described LED light source is the integrated optical source LED light source.

3. the high-power LED spotlight of a kind of active heat removal according to claim 1, it is characterized in that: reflector also is installed in described lamp housing, and described LED light source is installed on the center of described reflector bottom.

4. the high-power LED spotlight of a kind of active heat removal according to claim 3, it is characterized in that: the front end of described reflector also is equipped with lens.

5. the high-power LED spotlight of a kind of active heat removal according to claim 4, it is characterized in that: described lens are single focal length lenses.

6. the high-power LED spotlight of a kind of active heat removal according to claim 1, it is characterized in that: described lamp housing front end also is equipped with cover, and described cover is connected combination with described lamp housing by screw.

7. the high-power LED spotlight of a kind of active heat removal according to claim 6, is characterized in that: on described cover, also offer exhaust vent.

8. the high-power LED spotlight of a kind of active heat removal according to claim 1, it is characterized in that: described fin is aluminium heat sink.

9. according to the high-power LED spotlight of claim 1 or 8 described a kind of active heat removal, it is characterized in that: described fin is screwed in described lamp housing.

10. according to the high-power LED spotlight of claim 1 or 8 described a kind of active heat removal, it is characterized in that: also scribble heat dissipating silicone grease between described fin and described LED light source contact-making surface.