CN101539284B

CN101539284B - LED illumination device

Info

Publication number: CN101539284B
Application number: CN2008100661526A
Authority: CN
Inventors: 龙彬; 余光
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: QUANYIDA TECHNOLOGY (FOSHAN) Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2012-05-16
Anticipated expiration: 2028-03-21
Also published as: CN101539284A

Abstract

An LED illumination device comprises a lamp holder, a first radiator arranged on the lamp holder, a plurality of LED combinations, a plurality of second radiators arranged on the periphery of the first radiator, and a plurality of heat tubes connected with the first radiator and the second radiators, wherein the heat tubes comprises a heat absorb section and a heat release section, the heat absorb section is arranged in the second radiator, the heat release section is arranged in the first radiator, and the LED combinations are attached to the second radiators. The first radiator is additionally arranged on the LED illumination device to assist in dissipating heat, and the LED illumination device gains higher radiating efficiency and simultaneously can control the volume of the radiators; moreover, the LED combinations are attached to the second radiators which are arranged on the periphery of the first radiator, so rays can be radiated to the periphery of the illumination device, and the better illuminating effect can be realized.

Description

Light emitting diode illuminating apparatus

Technical field

The present invention relates to a kind of lighting device, be meant a kind of light emitting diode illuminating apparatus especially with heat abstractor.

Background technology

Light emitting diode is applied in the middle of the every field as a kind of light emitting source efficiently more and more.But, can produce great amount of heat during light emitting diode work, if these heats can not get distributing timely, make light emitting diode produce superheating phenomenon easily, and then cause its luminous efficiency to descend.

Traditional light emitting diode illuminating apparatus comprises tabular radiator and some light emitting diodes that is installed on radiator one side.These light emitting diodes are arranged on some straight lines equably.When light emitting diode was lighted, the heat of its generation was distributed in the surrounding air via radiator.

But because these light emitting diodes are positioned at the homonymy of radiator, the light that it sent can only go out from this side direction external radiation of radiator, and lighting angle is limited, can not illuminate lighting device simultaneously all around, and illuminating effect is not good.

Summary of the invention

In view of this, be necessary to provide the light emitting diode illuminating apparatus that a kind of radiating efficiency is higher and lighting area is bigger.

A kind of light emitting diode illuminating apparatus; Comprise a lamp socket, be arranged on first radiator and some light emitting diode combined on the lamp socket; Also comprise the some heat pipes that are around in some second radiators around first radiator and connect first and second radiator, said heat pipe comprises an endotherm section and a heat release section, and said endotherm section is housed in second radiator; Said heat release section is housed in first radiator, and said light emitting diode combined is sticked on second radiator.

Compared with prior art, light emitting diode illuminating apparatus of the present invention adds first radiator with auxiliary heat dissipation, can in control radiator volume size, obtain a higher radiating efficiency; And because light emitting diode combined is sticked on second radiator, second radiator is provided with around first radiator, thus can be with light to lighting device radiation all around, reach a bigger field of illumination.

With reference to the accompanying drawings, in conjunction with specific embodiment the present invention is done further description.

Description of drawings

Fig. 1 is the three-dimensional combination figure of light emitting diode illuminating apparatus of the present invention.

Fig. 2 is the part three-dimensional exploded view of Fig. 1.

Fig. 3 is the stereogram of first radiator of Fig. 1.

Fig. 4 is the profile of first radiator among Fig. 3.

Fig. 5 is the stereogram of second radiator among Fig. 1.

The specific embodiment

Light emitting diode illuminating apparatus of the present invention is used to indoor and more outdoor specific occasions comprehensive large-area lighting is provided.As depicted in figs. 1 and 2, light emitting diode illuminating apparatus of the present invention comprises that a lamp socket 10, first radiator 20, the ring that are connected with lamp socket 10 are located at three second radiators 30 around first radiator 20, connect three groups of heat pipes 40 of first and

second radiator

20,30 and being sticked in the light emitting diode combined 50 in second radiator, 30 outsides respectively.In addition, the top of said first radiator 20 also is provided with as the crown of decorating 60.

Said lamp socket 10 comprises a columned body 12, and the upper end of this body 12 evenly is provided with three installation portions 14 that are bowl-mouth shape along its outer wall periphery, and each installation portion 14 central authorities offers an installing hole 140, so that combine with second radiator 30.

Said first radiator 20 and second radiator 30 are processed by thermal conductance good metal material.See also Fig. 3 and Fig. 4, said first radiator 20 comprises the heat carrier 22 of a hollow tube-shape, and the outer wall of this heat carrier 22 radially outward is extended with some radiating fins 24 radially along it.The outer wall of said heat carrier 22 runs through three cylindric through holes 200 of formation along its central axis, and this through hole 200 is symmetrically distributed along the central axis of this heat carrier 22, and its cross section is c-shaped, in order to crown 60 conveniently to be installed on first radiator 20.Said heat carrier 22 forms three groups of otch 220 from an end along being parallel to after its central axis cuts away part; Said three groups of otch 220 evenly are provided with along the circumference of heat carrier 22; And every group of otch 220 is between two through holes 200; It comprises a pair of otch parallel to each other 220, but heating tube 30 penetrate, prevent that heat pipe 30 from producing with fin 24 to interfere.The corresponding otch of the inwall of said heat carrier 22 220 places offer groove 224; Groove 224 is along putting down shape in the central axis setting of heat carrier 22; This groove 224 is semicircle shape through the central axis and the cross section of heat carrier 22, these grooves 224 and the corresponding otch 220 common spaces of accommodating heat pipe 40 that form.

Like Fig. 2 and shown in Figure 5; Said second radiator 30 comprises a rectangle heat-conducting plate 32; One outer surface of this heat-conducting plate 32 supplies light emitting diode combined 50 to be sticked, some fin 34 that its another relative inner surface vertically stretches out and is parallel to each other, and these fin 34 extend towards the radiating fin 24 of first radiator 20; A through hole 320 is offered in the below of heat-conducting plate 32, and the source line group (figure does not show) that supplies to connect light emitting diode combined 50 is passed the heat-conducting plate 32 of second radiator 30.The inner surface of said heat-conducting plate 32 is interval with a pair of groove 322 parallel to each other in order to ccontaining heat pipe 40.The below of said heat-conducting plate 32 inner surfaces extends outwardly and is provided with a bowl-shape lid 324 that protrudes in fin 34; The neckline 3242 that this lid 324 comprises along the ring-type joint portions 3240 of the inboard outwards protrusion of heat-conducting

plate

32 and 3240 circumference extends along the joint portion; The somewhat larger in diameter of this neckline 3242 is in the external diameter of the installation portion 14 of the body 12 of lamp socket 10; So that the neckline of lid 324 3242 covers are buckled in the installation portion 14 of the body 12 of lamp socket 10; Thereby the lid 324 of second radiator 30 is combined on the body 12 of lamp socket 10; The space that said lid 324 and corresponding installation portion 14 are combined together to form not only can ccontaining connection light emitting diode combined 50 devices such as source line group, and can make on the firm body that is combined in lamp socket 10 12 of second radiator 30, strengthen second radiator 30 and be around in the stability around first radiator 20.The edge of the heat-conducting plate 32 of second radiator 30 is provided with projection 326.

As shown in Figure 2; The inwall of the heat carrier 22 of every group of heat pipe 40 connections first radiator 20 and the heat-conducting plate 32 of second radiator 30; The heat of light emitting diode combined 50 transfers to the heat carrier 22 of first radiator 20 fast by heat pipe 40, thereby the heat of its generation is outwards distributed by the fin 34 of second radiator 30 and the radiating fin 24 of first radiator 20 simultaneously.Each heat pipe 40 comprises an endotherm section 42, is parallel to a heat release section 44 and the linkage section 46 between endotherm section 42 and heat release section 44 of endotherm section 42.The length of said endotherm section 42 is greater than the length of heat release section 44, is housed in the groove 322 of heat-conducting plate 32 of second radiator 30, is sticked at the heat of the light emitting diode combined 50 in second radiator, 30 outsides with absorption.The otch 220 that said heat release section 44 is passed first radiator 20 is housed in the groove 224 of inwall of first radiator 20; So that the heat that second radiator, 30 heat-conducting plates 32 absorb can reach on the heat carrier 22 of first radiator 20 fast, accelerate the radiating rate of second radiator 30.

The lampshade 54 that each group light emitting diode combined 50 comprises light emitting diode module 52 and is installed on second radiator 30 heat-conducting plates, 32 outsides and accommodates light emitting diode module 52 in the embodiments of the invention.Said light emitting diode module 52 comprises the circuit board 520 of a pair of rectangle and is fixed in some light emitting diodes 522 of circuit board 520 homonymies along circuit board 520 length directions.Said light emitting diode module 52 be sticked with heat-conducting plate 32 outsides of second radiator 30 so that the heat that light emitting diode module 52 produces can reach the heat-conducting plate 32 of second radiator 30 fast and derive through heat pipe 30.Can fill heat-conducting medium between the heat-conducting plate 32 of said light emitting diode module 52 and corresponding second radiator 30, to increase the capacity of heat transmission between them like heat-conducting glue and so on.

Said lampshade 54 is processed by transparent material such as organic glass, resin etc., and it is a rectangle plate body, the size equate with the heat-conducting plate 32 of second radiator 30, comprise a cover body 540 and be installed in cover body 540 and heat-conducting plate 32 between a fixed frame 542.542 liang of this fixed frames group opposite side is equipped with the projection 326 corresponding fixing holes 5420 with the heat-conducting plate 32 of second radiator 30; Cover body 540 places of keeping to the side offer the corresponding combined hole (figure does not show) of fixing hole 5420 of some and fixed frame 542; The projection 326 of heat-conducting plate 32 of fixing hole 5420 and first radiator that (figure does not show) passed combined hole, the fixed frame 542 of cover body 540 so that screw screws togather, and lampshade 54 is stabilized on the heat-conducting plate 32 of second radiator 30.

When using this light emitting diode illuminating apparatus; Light emitting diode module 52 electrified light emittings; The heat of its generation conducts on the heat-conducting plate 32 with its second radiator 30 that closely contacts via circuit board 520; Further evenly be delivered on whole second radiator 30, a part of heat is distributed by fin 34 again; Another part heat reaches first radiator 20 through heat pipe 40 and is promptly distributed by radiating fin 24, and then improves radiating efficiency.And, be provided with because three second radiators 30 center on first radiator 20, and light emitting diode combined 50 is sticked on second radiator 30, so can light radiation around lighting device be reached the wider illuminating effect of a scope.

Claims

1. light emitting diode illuminating apparatus; Comprise a lamp socket, be arranged on first radiator and some light emitting diode combined on the lamp socket; It is characterized in that: also comprise the some heat pipes that are around in some second radiators around first radiator and connect first and second radiator; Said first radiator comprises the heat carrier of a hollow tube-shape and the some radiating fins that radially outward extend radially along the outer wall of this heat carrier; Said heat carrier forms three groups of otch from an end along being parallel to after its central axis cuts away part; The inwall of said heat carrier is offered the formation groove along its axial corresponding said otch, and said heat pipe comprises an endotherm section and a heat release section, and said endotherm section is housed in second radiator; The otch that said heat release section is passed said first radiator is housed in the groove of inwall of heat carrier of first radiator, and said light emitting diode combined is sticked in the outside of second radiator and is around in around first radiator.

2. light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that: said second radiator is parallel to the central axis setting of first radiator.

3. light emitting diode illuminating apparatus as claimed in claim 1; It is characterized in that: said second radiator comprises a heat-conducting plate and the some fin that extend along a side of heat-conducting plate; The fin of said second radiator is towards the radiating fin setting of first radiator; Said light emitting diode combined is sticked in the outside of the heat-conducting plate of second radiator, and the endotherm section of said heat pipe is contained in the inboard of the heat-conducting plate of second radiator.

4. light emitting diode illuminating apparatus as claimed in claim 3; It is characterized in that: said light emitting diode combined comprises some light emitting diode module and a cover body; Said light emitting diode module adheres on the second radiator heat-conducting plate outside, and said cover body is installed on the second radiator heat-conducting plate outside and accommodates light emitting diode module.

5. light emitting diode illuminating apparatus as claimed in claim 4 is characterized in that: a fixed frame is installed between the heat-conducting plate of the said cover body and second radiator.

6. like any described light emitting diode illuminating apparatus of claim 1 to 3, it is characterized in that: the heat-conducting plate of said second radiator extends a lid towards first radiator, and said lid combines with said lamp socket.

7. light emitting diode illuminating apparatus as claimed in claim 6 is characterized in that: the installation portion that said lamp socket combines with the lid of said second radiator along the setting of its periphery.

8. light emitting diode illuminating apparatus as claimed in claim 6; It is characterized in that: said lid comprise an annular joint portion and be connected with the joint portion, by the outward extending sidewall of the heat-conducting plate of second radiator, the joint portion of said lid is fastened on the installation portion of lamp socket.