CN201858554U

CN201858554U - LED illuminating lamp

Info

Publication number: CN201858554U
Application number: CN2010205692650U
Authority: CN
Inventors: 王秋燕
Original assignee: Shenzhen Xuming Optronics Co ltd
Current assignee: Shenzhen Xuming Optronics Co Ltd
Priority date: 2010-10-19
Filing date: 2010-10-19
Publication date: 2011-06-08
Anticipated expiration: 2020-10-19

Abstract

The utility model discloses an LED illuminating lamp which comprises a lamp cap, a lamp holder casing internally installed with a power board, a lamp body connected on the casing; the lamp body comprises a group of LED light-emitting element arranged on one surface of the lamp body, an aluminum substrate for mounting the light-emitting elements, a radiating fin group closely stuck with the aluminum substrate and provided with a convection groove tooth blade structure, and a convection device capable of actively dispersing the heat of the radiating fins; and the convection device is assembled in the middle of the radiating fin group, so that air is introduced into the radiating fin group from the outside of the lamp body and then flows out from the two ends of the lamp body. By adopting the scheme, the LED illuminating lamp not only can ensure that the size meets the service requirements of various street lamp housings, but also can improve power and light flux; the cooling efficiency is improved by 5 times above; and since the chip is directly bound on the aluminum-based circuit board, the thermal resistance and the heat conduction interface can be both reduced, and the working temperature of the chip is decreased. The technique can ensure the long service life of the LED illuminating lamp, and the LED illuminating lamp is easy to use, so that the utilization ratio is greatly improved.

Description

A kind of LED illuminating lamp

Technical field

The utility model relates to a kind of LED illuminating lamp.

Background technology

Day by day deficient in current resource, under the environmental pollution serious situation, we advocate " low carbon emission reduction, green living ".Traditional illumination power consumption is big, the life-span short, pollution is arranged.Under these circumstances, traditional lighting just must be replaced by new light fixture, and the LED illumination just stands in the breach.LED throw light on changeable unreal, high energy-conservation, life-span length, environmental protection, technology novelty.What LED light fixture technology was just being maked rapid progress is improving, and its luminous efficiency is obtaining surprising breakthrough, and price is also in continuous reduction.A white light LEDs light fixture enters the epoch arrival rapidly of family.But want to replace the performance of conventional lamp high brightness.The LED lighting just must be resolved heat dissipation problem, light efficiency problem and life problems.

Comparing with conventional lamp, the LED lighting will be accomplished high-power, and subject matter is to resolve the heat radiation and the light decay of light source, problems such as dazzle, and this will set about on it is structural and functional.Make it become the cost performance height, the green illumination of a new generation.The energy of input LED, about 20% can convert luminous energy to, and remaining 80% all changes into heat energy, and producing heat is very serious problem, and at first, when temperature raise, luminous intensity can descend, and the life-span also can and then descend.Temperature raises and also can cause radiating wavelength shift, produces aberration, and follows conversion quantum efficiency to reduce, and causes luminous intensity to descend, and material can expand, and product reliability will reduce, and also can reduce service life.Therefore, the light fixture heat radiation is a urgent problem.

Heat radiation has 3 kinds of modes basically, and the one, conduction-type heat radiation, the 2nd, convection type heat radiation, the 3rd, radiant type heat radiation.By three's mathematical formulae as can be seen, dispel the heat main problem points just at area; And because of the heat loss through radiation amount is very little, so topmost radiating mode is aspect conduction and convection current two.So accomplish that high-power LED lighting fixture replaces the traditional lighting light fixture and solving on the heat dissipation problem and will have breakthrough.Among the illumination of LED large-power lamp, except the heat radiation aspect can influence LED the life-span, material of LED own and packing forms also can have influence on the LED life-span, and the thermal resistance after LED itself encapsulation just can have influence on the conduction of LED, could improve the life-span so will accomplish low thermal resistance.The characteristic of LED is directed luminous, and luminous intensity is concentrated, so need secondary optics to change optics, all there is the problem of dazzle in optics in the past in design, so will accomplish to reduce the pollution of dazzle.

The utility model content

At the problems referred to above, the utility model aims to provide a kind of good heat dissipation effect, LED illuminating lamp that volume is little.

For realizing this technical purpose, scheme of the present utility model is: a kind of LED illuminating lamp, comprise lamp holder, be built-in with power panel lampholder shell, be connected the lamp main body on this housing, described lamp main body includes the one group of LED light-emitting component, the aluminium base that light-emitting component is installed that are arranged in this lamp main body one side, is close to the groups of fins to chute gear piece structure of aluminium base, the convection device of the fin heat that can initiatively leave; Described convection device is assemblied in the centre of groups of fins, and the outside importing groups of fins of air from the lamp main body flowed out to the both ends of lamp main body again.

As further improvement, also dispose a radiator cover on the described lamp main body, this cover is provided with the air inlet position corresponding to the position of convection device.

As further improvement, described convection device can be fan.

As further improvement, the bottom opening of described lampholder shell does not have the position of part to cut out sky on the built-in power panel, and the air-flow conducting structure is adopted at the position that the lamp main body combines with lamp socket.

As further improvement, described lamp holder and lampholder shell connecting portion adopt the screw ways of connecting.

As further improvement, all be provided with spreadlight lens on the described LED light-emitting component.

As further improvement, the encapsulation of LED light-emitting component is adopted chip is bundled in structure on the aluminium base.

Technology in the past is unilaterally to dispel the heat by convection current, reaching the certain power area of dissipation needs very big, just volume is just big, so can be restricted when putting into the street lamp shell, weight does not reach the requirement of safety yet, also be subjected to a lot of restrictions in the use, the street lamp of some height just can not be done replacement.

The design of this programme can guarantee that size satisfies various street lamp shells and can use, power and luminous flux have been improved again, the heat radiation aspect has increased more than 5 times, adopt chip directly to be bundled in the pattern of aluminum-based circuit board, can reduce thermal resistance, reduce heat conducting interface, reduced the operating temperature of chip, can hang down more than 10 degree than traditional method led chip operating temperature.Present technique can ensure the feature of long life of LED light fixture, and is also very flexible in use, can be used in road lighting, the sub-district illumination, and industrial lights etc. need the place of highlighted illumination, have improved utilization rate greatly.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the present utility model.

Fig. 2 is a longitudinal sectional view of the present utility model.

Fig. 3 is the structure chart of convection device of the present utility model.

Fig. 4 is the structure chart of fin of the present utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

As shown in Figure 1, 2, a kind of LED illuminating lamp of the present utility model, comprise lamp holder 1, be built-in with power panel 2 lampholder shell, be connected the lamp main body on this housing, the lamp main body includes the one group of LED light-emitting component 5, the aluminium base that light-emitting component is installed that are arranged in this lamp main body one side, is close to the groups of fins 6 (as shown in Figure 4) to chute gear piece structure of aluminium base, the convection device 3 of the fin heat that can initiatively leave; Described convection device is assemblied in the middle of the groups of fins, and the outside importing groups of fins of air from the lamp main body flowed out to the both ends of lamp main body again.

The heat dissipation design that heat radiation of the present utility model adopts conduction-type and convection type to combine is done improvement on fitting structure, design is to the groups of fins of chute gear piece, and the groups of fins the inside installs convection device additional.Before this energy of light source conversion thermal energy was derived by radiator, adopt convection device to accelerate cross-ventilation again, change the flow direction of air by the effect of heat spreader structures, flowed in its two toward the lamp main body, take away the heat energy of radiator derivation and the heat that power supply distributes, light fixture can be dispelled the heat efficiently.

In a preferred embodiment:

Also dispose a radiator cover 4 on the described lamp main body, this cover is provided with the air inlet position corresponding to the position of convection device.

As shown in Figure 3, convection device can be fan, as Active Cooling fan; It also can be any device of the prior art that can realize the active heat removal function.

The bottom opening of lampholder shell does not have the position of part to cut out sky on the built-in power panel, the air-flow conducting structure is adopted at the position that the lamp main body combines with lamp socket.In convection device work, the heat that power supply sends also can shed, and power source life and stability can both be improved.

Lamp holder and lampholder shell connecting portion adopt the screw ways of connecting.Because LED illuminating lamp of the present utility model is that single face is luminous, be contained in the road illuminating lamp shell, this just needs light fixture itself just can rotate, and guarantees that light-emitting area is towards the road surface direction.On this structure, adopt the screw ways of connecting, the one, accessory is few, the assembling aspect.The 2nd, guaranteed also on the function that the rotation and the energy of rotation of light fixture itself is restricted, and light-emitting area one rotates to the purpose towards the road surface surely.

All be provided with spreadlight lens on the LED light-emitting component.Secondary light-distribution, lens adopt polarization light technology, and 90 ° to 120 ° of lighting angles can be done the minimizing dazzle, and illuminance of ground is more even, and 5 * 6 and 5 * 8 two kinds of specifications have been adopted in design.

The encapsulation of LED light-emitting component is adopted chip is bundled in structure on the aluminium base.LED encapsulation is adopted chip nation is fixed on the aluminum-based circuit board, and specification is with the lens correspondence, and promptly 5 * 6,5 * 8, the method can reduce the conduction interfaces of LED heat, and operation also can reduce in production and processing, and thermal resistance also can drop to 3 degree/w.

This novel light fixture overall structure assemble simple and conveniently, and convection device is placed in the middle of the groups of fins, adds stamping parts at the groups of fins two ends, plays connection and spacing, can not directly see convection device, and overall appearance is also attractive in appearance relatively.This kind structural design, flexibility is big, can be different according to the compound mode of the specification of lens and lens, design the illumination of different capacity.It is a series of to be 40W, 50W, 60W, 80W, 100W, 120W, 160w or the like, is fit to the demand of different kinds of roads and different occasions.In addition, can design control system, make solar energy series.

The above; it only is preferred embodiment of the present utility model; not in order to restriction the utility model, every foundation technical spirit of the present utility model to any trickle modification that above embodiment did, be equal to and replace and improve, all should be included within the protection domain of technical solutions of the utility model.

Claims

1. LED illuminating lamp, comprise lamp holder, be built-in with power panel lampholder shell, be connected the lamp main body on this housing, it is characterized in that: described lamp main body includes the one group of LED light-emitting component, the aluminium base that light-emitting component is installed that are arranged in this lamp main body one side, is close to the groups of fins to chute gear piece structure of aluminium base, the convection device of the fin heat that can initiatively leave; Described convection device is assemblied in the centre of groups of fins, and the outside importing groups of fins of air from the lamp main body flowed out to the both ends of lamp main body again.

2. LED illuminating lamp according to claim 1 is characterized in that: also dispose a radiator cover on the described lamp main body, this cover is provided with the air inlet position corresponding to the position of convection device.

3. LED illuminating lamp according to claim 1 is characterized in that: described convection device can be fan.

4. LED illuminating lamp according to claim 1 is characterized in that: the bottom opening of described lampholder shell, and there is not the position of part to cut out sky on the built-in power panel, the air-flow conducting structure is adopted at the position that the lamp main body combines with lamp socket.

5. LED illuminating lamp according to claim 1 is characterized in that: described lamp holder and lampholder shell connecting portion adopt the screw ways of connecting.

6. LED illuminating lamp according to claim 1 is characterized in that: all be provided with spreadlight lens on the described LED light-emitting component.

7. LED illuminating lamp according to claim 1 is characterized in that: the encapsulation of LED light-emitting component is adopted chip is bundled in structure on the aluminium base.