CN101586794A

CN101586794A - Light-emitting diode lamp with radiator structure

Info

Publication number: CN101586794A
Application number: CNA200810067416XA
Authority: CN
Inventors: 帅春江; 余光
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2008-05-23
Filing date: 2008-05-23
Publication date: 2009-11-25

Abstract

A kind of light-emitting diode lamp with radiator structure, comprise some light emitting diode module, one first radiator, described first radiator comprises a substrate and goes up extended some first fin, be formed with gas channel respectively between each first fin, also comprise one second radiator on the substrate that is attached at first radiator, described light emitting diode module is attached on second radiator, and described first radiator is provided with the some grooves that run through first fin and gas channel.The present invention increases area of dissipation by second radiator is set on first radiator, be implemented in and promote whole radiating efficiency under the prerequisite that does not increase single radiator volume and radiating fin density; In addition, first radiator is provided with the groove that runs through first fin and gas channel on it, has both alleviated the weight of first radiator, has strengthened the free convection of air between first fin again.

Description

Light-emitting diode lamp with radiator structure

Technical field

The present invention relates to a kind of light-emitting diode lamp, be meant a kind of light-emitting diode lamp especially with radiator structure.

Background technology

Light emitting diode (Light Emitting Diode, be called for short LED), it is a kind of light emitting semiconductor device, it is to utilize semiconductor chip as luminescent device, by carrier compound energy of emitting surplus taking place causes photo emissions in semiconductor, directly send versicolor light such as red, indigo plant, the led lighting product utilizes light emitting diode as the produced ligthing paraphernalia of light source exactly, is widely used in fields such as communication, illumination, traffic, billboards.But high brightness, High Power LED are understood the rising of Yin Wendu and caused luminous efficiency obviously to descend, even cause the damage of assembly, and be more outstanding in this problem of lighting field.Therefore, how the operating temperature with light emitting diode keeps within the specific limits to avoid the generation of above-mentioned phenomenon, is that high-capacity LED lamp is used the essential problem that solves.At present, the common way of industry is sticked radiator to distribute its heat below LED circuitboard, it comprises a substrate and the several dissipation fins of extending on this substrate, absorb the LED heat by substrate and pass to radiating fin, the dependence radiating fin mode of radiations heat energy towards periphery dispels the heat.In order to improve its radiating efficiency, generally needing increases radiating fin quantity or increases the radiating fin size, but owing to made the restriction of rise ratio of the mould of radiating fin, the radiating fin size and the density thereof of single radiator all can be restricted.

Summary of the invention

In view of this, be necessary to provide a kind of light-emitting diode lamp with radiator structure, it obtains preferable radiating effect with compact structure, and then guarantees the work of light emitting diode stability and high efficiency ground.

A kind of light-emitting diode lamp with radiator structure, comprise some light emitting diode module, one first radiator, described first radiator comprises a substrate and goes up extended some first fin, be formed with gas channel respectively between each first fin, also comprise one second radiator on the substrate that is attached at first radiator, described light emitting diode module is attached on second radiator, and described first radiator is provided with the some grooves that run through first fin and gas channel.

Compared with prior art, the present invention increases area of dissipation by second radiator is set on first radiator, is implemented in and promotes whole radiating efficiency under the prerequisite that does not increase single radiator volume and radiating fin density; In addition, first radiator is provided with the groove that runs through first fin and gas channel on it, has both alleviated the weight of first radiator, has strengthened the free convection of air between first fin again.

With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.

Description of drawings

Fig. 1 have for the present invention radiator structure light-emitting diode lamp a preferred embodiment three-dimensional combination figure.

Fig. 2 is the inversion three-dimensional combination figure of Fig. 1.

Fig. 3 is the three-dimensional exploded view of Fig. 2.

Fig. 4 is the front view of Fig. 2.

Fig. 5 is the side view of Fig. 2.

The specific embodiment

Fig. 1 to Fig. 5 discloses the light-emitting diode lamp with radiator structure in one embodiment of the present invention, it is used for light-emittingdiode heat radiation, and it comprises one first radiator 10, be attached at second radiator 20 of first radiator 10 and be sticked in some light emitting diode module 30 of second radiator 20.The present invention also comprises a lamp bracket 40 that is covered with light emitting diode module 30.

See also Fig. 3, some Thermal Arms 14 that first radiator 10 comprises a rectangular substrate 12, extend vertically upward along the end face of substrate 12 and by Thermal Arm 14 extended some first fin 16.The thickness edge of Thermal Arm 14 reduces gradually away from the direction of the substrate 12 of first radiator 10, and first fin 16 is symmetrical arranged along relative two sides of Thermal Arm 14.Be provided with the gas channel 160 of longitudinal extension between the first whenever adjacent fin 16.These first fin 16 are wavy setting along substrate 12 short side directions, and first fin 16 of each Thermal Arm 14 phase the same side is parallel to each other.First radiator 10 also is provided with the groove 18 that laterally runs through the Thermal Arm 14 and first fin 16.Groove 18 extends to the bottom of Thermal Arm 14 along the top of Thermal Arm 14, the Thermal Arm 14 and first fin 16 are cut along the minor face that is parallel to substrate 12, so that the Thermal Arm 14 and first fin 16 are cut into several portions.

Second radiator 20 comprises a base 22 and some second fin 24 that extend vertically downward along relative two sides in base 22 bottom surfaces.The end face of base 22 directly is sticked with the bottom surface of the substrate 12 of first radiator 10 and is fixing.In the present embodiment, the substrate 12 of the base 22 and first radiator 10 is sticked and extends beyond the substrate 12 of first radiator 10.The be sticked height of second fin 24 of the bottom surface of base 22 and light emitting diode module 30 is inwardly increased progressively gradually by the outer fix of base 22, and promptly Nei Ce second fin 24 is than the height (referring to Fig. 3) of both sides.Base 22 is provided with perforation 220 all around along it, passes base 22 for connector (figure does not show) and cooperates with lamp bracket 40, and second radiator 20 is fixed on the lamp bracket 40.

Light emitting diode module 30 comprises that the circuit board 32 of rectangular plate shape reaches the light emitting diode 34 that is sticked in turn on circuit board 32.For the heat of strengthening light emitting diode module 30 reaches the base 22 of second radiator 20 better, press from both sides between the bottom surface of light emitting diode module 30 and base 22 and establish some absorber plates 50.Absorber plate 50 is all rectangular tabular, is sticked in turn the part of second fin 24 is not set in the bottom surface of base 22, and promptly second fin 24 is arranged at the both sides of light emitting diode module 30 symmetrically.Light emitting diode module 30 correspondences are sticked on the surface of absorber plate 50, and are positioned at base 22 bottom surfaces corresponding to first radiator, 10 positions, dispel the heat so that the heat of light emitting diode module 30 is passed to first radiator 10 sooner.

Lamp bracket 40 comprises that a rectangular lamp door 42 reaches from the box body 44 of the integrally formed usefulness that supplies wiring or installation of an end of lamp door 42.Be provided with the corresponding fixing hole 420 of perforation around the lamp door 42 with the base 22 of second radiator 20, can penetrate in turn wherein for the connector of the perforation 220 of passing second radiator 20, second radiator 20 is fixed on the lamp door 42 of lamp bracket 40, thereby the light emitting diode module 30 that is sticked at the base 22 of second radiator 20 is housed in the lamp bracket 40.

When light emitting diode module 30 work, the absorber plate 50 that the heat of its generation at first is sticked with it absorbs and reaches fast the base 22 of second radiator 20, conducted on first fin 16 of first radiator 10 on the base 22 that is attached at second radiator 20 thereupon, heat is dispersed in the surrounding air by first fin 16 and goes, thereby effectively light emitting diode module 30 is dispelled the heat.In the present embodiment, when cooling blast blows to the end face of substrate 12 of first radiator 10, part cooling blast flows and is flowed out by the shorter lateral sides of such direction of the substrate 12 that is parallel to first radiator 10 along the groove 18 of 10 in first radiator, and a part of in addition air-flow can flow and flowing out than the long side direction by the substrate 12 that is parallel to first radiator 10 along the gas channel 160 that first fin 16 forms.Like this, cooling blast will be along laterally with vertically the flowing out of first radiator, 10 substrates 12, i.e. the cooling blast heat that flowed out by four direction and produce when taking away light emitting diode module 30 work.The groove 18 that first radiator 10 is offered makes gas channel 160 that the fin 16 of winning forms laterally connect mutually along first radiator 10 of first radiator 10, has strengthened the cross-ventilation between first fin 16 of first radiator 10 greatly.Simultaneously, first radiator 10 is set on the base 22 of second radiator 20, increased the efficiently radiates heat area, avoided increasing area of dissipation by radiating fin density or the method highly that increases single radiator in the tradition, thereby in the processing procedure process, be subjected to the problem of radiating fin rise than restriction.

Claims

1. light-emitting diode lamp with radiator structure, comprise some light emitting diode module, one first radiator, described first radiator comprises a substrate and goes up extended some first fin, be formed with gas channel respectively between each first fin, it is characterized in that: also comprise one second radiator on the substrate that is attached at first radiator, described light emitting diode module is attached on second radiator, and described first radiator is provided with the some grooves that run through first fin and gas channel.

2. the light-emitting diode lamp with radiator structure as claimed in claim 1 is characterized in that: described second radiator has a base that is attached on the described substrate, and described first fin and light emitting diode module are positioned at the both sides of described base.

3. the light-emitting diode lamp with radiator structure as claimed in claim 1 is characterized in that: described first radiator comprises that also described first fin is symmetricly set on the relative both sides of Thermal Arm by the extended some Thermal Arms of substrate.

4. the light-emitting diode lamp with radiator structure as claimed in claim 3, it is characterized in that: the relative Thermal Arm of described first fin is obliquely installed, described groove cuts the Thermal Arm and first fin along the minor face that is parallel to substrate, so that the Thermal Arm and first fin are cut into several portions.

5. the light-emitting diode lamp with radiator structure as claimed in claim 4, it is characterized in that: the thickness edge of described Thermal Arm reduces gradually away from the direction of the substrate of first radiator, described first fin is wavy setting along the substrate short side direction, and first fin of described each Thermal Arm phase the same side is parallel to each other.

6. the light-emitting diode lamp with radiator structure as claimed in claim 1, it is characterized in that: described second radiator comprises fits with described pedestal and extends beyond a base of described pedestal and be arranged on some second fin on base one surface, described light emitting diode module is installed on the base central position, the described second fin symmetry is positioned at the light emitting diode module both sides, and described first radiator is positioned at base corresponding to the light emitting diode module position.

7. the light-emitting diode lamp with radiator structure as claimed in claim 6, it is characterized in that: second fin of described second radiator is increased progressively to inner height by the chassis outer side position along the direction parallel with base, thereby is positioned at the second fin height of the second inboard fin than both sides.

8. the light-emitting diode lamp with radiator structure as claimed in claim 6, it is characterized in that: also comprise a lamp bracket that is covered with light emitting diode module, described lamp bracket comprises accommodates light emitting diode module and cooperates a fixing lamp door with the base of second radiator.