CN201237200Y

CN201237200Y - Heat dissipation device of LED spotlight

Info

Publication number: CN201237200Y
Application number: CNU2008200507069U
Authority: CN
Inventors: 吴新伟; 蓝开锋
Original assignee: Dongguan City Yi Chia Optoelectronics Technology Co ltd
Current assignee: Dongguan City Yi Chia Optoelectronics Technology Co ltd
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2009-05-13
Anticipated expiration: 2018-07-15

Abstract

The utility model relates to the technical field of heat dissipation devices, in particular to a heat dissipation device of an LED spotlight, which comprises a cup-shaped heat dissipation body, wherein two or more layers of heat dissipation fin groups are formed on the outer side surface of the heat dissipation body, each heat dissipation fin group is composed of a plurality of heat dissipation fins, each heat dissipation fin is in a circular radiation shape, and the radiation fins in the radiation shape have larger contact area with the air, namely, larger heat dissipation area, can rapidly dissipate the gathered heat, and have high heat dissipation efficiency; therefore, will the utility model discloses install in the LED shot-light, can in time rapidly lead away a large amount of heats that the LED during operation produced.

Description

A kind of heat abstractor of LED shot-light

Technical field:

The utility model relates to the heat abstractor technical field, relates in particular to a kind of heat abstractor of LED shot-light.

Background technology:

Because long service life, the energy consumption of LED (Light Emitting Diode, light emitting diode) are low, energy savings is remarkable, LED has been widely used in the daily life as light source, and as the LED shot-light, it is low in energy consumption, irradiation distance is far away, long service life.Yet along with the increase of LED quantity in the LED shot-light and high-power, high-brightness LED etc. are developed successively, the heat that is produced during the work of LED shot-light is just progressively upwards soaring.Therefore, the heat that how the LED shot-light is produced looses rapidly, becomes the significant problem that present LED shot-light technology must solve.

The radiator structure of existing LED shot-light, mainly be that shell by the aluminium base that installs and fixes LED, aluminium alloy manufacturing constitutes, aluminium base and shell utilize the heat conductivility of self, and the heat that produces when LED is worked is led away, still, because the volume of aluminium base is less, cause radiating efficiency not high, and the shell of LED shot-light, owing to be subjected to the restriction of face shaping, its radiating effect is relatively poor, and a large amount of heats that produce in the time of can not in time promptly LED being worked are led away.

The utility model content:

The purpose of this utility model is exactly the heat abstractor that the high LED shot-light of a kind of radiating efficiency is provided at the deficiency of prior art existence.

To achieve these goals, the technical solution adopted in the utility model is:

It comprises cup-shaped heat radiator body, and the lateral surface of described heat radiator body forms two-layer or two-layer above radiating fin group, and the radiating fin group is made of a plurality of radiating fins, the radiation shape that radiating fin is rounded.

Wherein, the bottom of described heat radiator body offers the inner fovea part that is used to place power pack, and the top of described heat radiator body offers the disposal area that is used to place aluminium base.

Wherein, described heat radiator body is provided with the through hole that inner fovea part can be communicated with the disposal area.

Wherein, the bottom of described disposal area offers first screw that is used for fixing aluminium base.

Wherein, the top of described heat radiator body forms the first ladder edge and the second ladder edge.

Wherein, the bottom of described disposal area offers locating slot.

Wherein, the inwall of described inner fovea part is provided with second screw.

The utility model beneficial effect is:

The heat abstractor of a kind of LED shot-light that the utility model provides comprises cup-shaped heat radiator body, the lateral surface of described heat radiator body forms two-layer or two-layer above radiating fin group, the radiating fin group is made of a plurality of radiating fins, the radiation shape that radiating fin is rounded, owing to the contact area of radiating fin that is radiation shape and air is bigger, be that area of dissipation is bigger, the heat of assembling promptly can be distributed the radiating efficiency height.Therefore, the utility model is installed in the LED shot-light, a large amount of heats that produce in the time of can in time promptly LED being worked are led away.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a upward view of the present utility model;

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further described, see shown in Fig. 1,2,3, the utility model comprises cup-shaped heat radiator body 1, the radius at its top is bigger, the radius of bottom is less, the lateral surface of described heat radiator body 1 forms two-layer radiating fin group 2, radiating fin group 2 is made of a plurality of radiating fins 21, the radiation shape that radiating fin 21 is rounded, because it is bigger with the contact area of air to be the radiating fin 21 of radiation shape, be that area of dissipation is bigger, the heat of assembling promptly can be distributed the radiating efficiency height.Need to prove that the radiating fin group 2 that the utility model is molded over heat radiator body 1 lateral surface can be multilayer, be not limited to be selected two-layer of present embodiment.

The bottom of the heat radiator body 1 of present embodiment offers the inner fovea part 3 that is used to place power pack, the top of described heat radiator body 1 offers the disposal area 4 that is used to place aluminium base, the bottom of disposal area 4 offers first screw 41 that is used for fixing aluminium base, certainly, described disposal area 4 also can be used to be placed as the lens of LED optically focused, therefore, the bottom of described disposal area 4 further offers the locating slot 42 that is used for positioning lens, and the top of described heat radiator body 1 forms the first ladder edge 6 and the second ladder edge 7 that is used to install lens.

The heat radiator body 1 of present embodiment is provided with the through hole 5 that inner fovea part 3 can be communicated with disposal area 4, and through hole 5 can be placed power line, and the aluminium base of LED shot-light is electrically connected with power pack.

The inwall of the inner fovea part 3 of present embodiment is provided with second screw 31, so that the lamp holder of LED shot-light is fixed on the bottom of heat abstractor by screw.

The utility model when in use, it is the bottom that the aluminium base of LED shot-light is fixed on disposal area 4 by screw, thereby the heat that produces when making LED work can reach heat radiator body 1 by aluminium base, is in time promptly distributed by the radiating fin group 2 that is molded over heat radiator body 1 lateral surface again.

Certainly, the above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. A heat dissipation device for LED spotlights, characterized in that it includes a cup-shaped heat dissipation body (1), and the outer surface of the heat dissipation body (1) is formed with two or more layers of heat dissipation fin groups (2), the heat dissipation fin group (2) is composed of a plurality of heat dissipation fins (21), and the heat dissipation fins (21) are in a circular radial shape.

2. A heat dissipation device for LED spotlights according to claim 1, characterized in that: the bottom of the heat dissipation body (1) is provided with an inner recess (3) for placing a power supply box, and the heat dissipation body (1) ) is provided with an accommodating area (4) for placing the aluminum substrate on the top.

3. A heat dissipation device for LED spotlights according to claim 2, characterized in that: the heat dissipation body (1) is provided with a through hole that can communicate the inner recess (3) with the accommodation area (4) (5).

4. A heat dissipation device for LED spotlights according to claim 2, characterized in that: a first screw hole (41) for fixing the aluminum substrate is provided at the bottom of the accommodation area (4).

5. The heat dissipation device for LED spotlights according to claim 1, characterized in that: a first stepped edge (6) and a second stepped edge (7) are formed on the top of the heat dissipation body (1).

6. The heat dissipation device for LED spotlights according to claim 2, characterized in that: a positioning slot (42) is opened at the bottom of the accommodation area (4).

7. The heat dissipation device for LED spotlights according to claim 2, characterized in that: the inner wall of the concave part (3) is provided with a second screw hole (31).