CN201599757U

CN201599757U - Radiator of LED bulb

Info

Publication number: CN201599757U
Application number: CN200920236998XU
Authority: CN
Inventors: 颜晓英; 刘志宙; 张元�
Original assignee: Dongguan Woomi Power Tech Co Ltd
Current assignee: Dongguan Woomi Power Tech Co Ltd
Priority date: 2009-10-12
Filing date: 2009-10-12
Publication date: 2010-10-06
Anticipated expiration: 2019-10-12

Abstract

The utility model discloses a radiator of an LED bulb. The radiator comprises heat dissipation fins, a positioning screw hole, an inner heat-conduction base body, an outer heat dissipation base body, a heat-conduction rib and heat exchange cavities, wherein the outer heat dissipation base body is connected with the inner heat-conduction base body by the heat-conduction rib; the space between the outer heat dissipation base body and the inner heat-conduction base body is separated into a plurality of cavities by the heat-conduction rib; the heat dissipation fins are vertically arranged on the outer side surface of the inner heat-conduction base body; and the heat exchange cavities are formed between the heat dissipation fins and between the heat dissipation fins and the outer heat dissipation base body. The radiator adopts the active cooling principle with hot air rising, so that the cold air can enter from the bottoms of the heat exchange cavities and can be exchanged with the heat at the inner sides of the heat dissipation fins, the inner heat-conduction base body, the outer heat dissipation base body and on the heat-conduction rib, and the heat can be emitted from the upper parts of the heat exchange cavities, thereby accelerating the convection of the cold air and the hot air and improving the heat exchange area and efficiency, so as to obtain higher-efficiency heat dissipation effect and improve the quality of the LED bulb.

Description

A kind of LED bulb lamp radiator

Technical field

The utility model relates to LED heat dissipation technology field, relates in particular to a kind of LED bulb lamp radiator.

Background technology

In recent years, illuminating LED has had very big progress at cost, aspect of performance, compares with conventional light source, and the LED lighting has weak point long, start-up time in life-span, sound construction, advantage such as energy-conservation, and is significant for environmental protection and energy savings.The present LED bulb of exploitation on the market because area of dissipation and radiator structure are unreasonable in design, is in a kind of passive heat radiation process, causes the LED bulb to be decayed owing to overheated, makes its reduction in service life.

The utility model content

At the problem that above-mentioned technology exists, the purpose of this utility model is to provide a kind of LED bulb lamp radiator of simple in structure, good heat dissipation effect.

For achieving the above object, the utility model adopts following technical scheme: a kind of LED bulb lamp radiator, it is characterized in that: comprise the outer heat radiation matrix and the interior heat conduction substrate that are linked together by some heat conduction muscle ribs, dispelling the heat outward is separated into some cavitys by heat conduction muscle rib between matrix and the interior heat conduction substrate; The outer surface that is positioned at aforementioned cavity at interior heat conduction substrate vertically is provided with radiating fin, leaves the space between radiating fin and the outer heat radiation matrix, between the radiating fin, radiating fin matrix between forms heat exchange chamber with dispelling the heat outward.

Further, the inner surface at interior heat conduction substrate is provided with some positioning screw holes.

Further, the lateral surface of heat conduction substrate in described radiating fin evenly is arranged on.

Further, dispel the heat inner surface, the heat conduction muscle rib surface of matrix outward for planarized structure or have the undaform curved-surface structure of better radiating effect.

Further, described radiator adopts aluminum material or copper material.

Further, can be integrative-structure between the matrix that dispels the heat outward, interior heat conduction substrate and the heat conduction muscle rib, also can be the branch body structure.

Further, can be integrative-structure between radiating fin and the interior heat conduction substrate, also can be the branch body structure.

The beneficial effects of the utility model are: according to aerodynamic design, as everyone knows, hot-air is light, cold air is heavy, the active heat removal principle that the utility model utilizes hot-air to rise, make it can allow cold air enter and radiating fin from the bottom of heat exchange chamber, interior heat conduction substrate, the inboard of outer heat radiation matrix and the heat on the heat conduction muscle rib carry out heat exchange, heat distributes from heat exchange chamber top, the convection current of cold and hot air has been quickened in this design, heat exchange area and efficient have been improved, thereby obtain radiating effect more efficiently, improved the quality of LED bulb lamp, prolong its life-span.

Description of drawings

Fig. 1 is the utility model vertical view;

Fig. 2 is the A portion enlarged drawing of Fig. 1;

Fig. 3 is the utility model perspective view.

Among the figure, 1 is radiating fin, and 2 is positioning screw hole, and 3 is interior heat conduction substrate, and 4 is outer heat radiation matrix, and 5 are heat conduction muscle rib, and 6 is heat exchange chamber.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

In the present embodiment, with reference to Fig. 1, Fig. 2 and Fig. 3, described LED bulb lamp radiator comprises radiating fin 1, positioning screw hole 2, interior heat conduction substrate 3, dispel the heat matrix 4, heat conduction muscle rib 5, heat exchange chamber 6 outward; Outer heat radiation matrix 4 and interior heat conduction substrate 3 are linked together by heat conduction muscle rib 5, and dispelling the heat outward is separated into some cavitys by heat conduction muscle rib 5 between matrix 4 and the interior heat conduction substrate 3; The outer surface that is positioned at aforementioned cavity at interior heat conduction substrate 3 vertically is provided with radiating fin 1, leaves the space between radiating fin 1 and the outer heat radiation matrix 4, formation heat exchange chamber 6 between the radiating fin 1, between radiating fin 1 and the outer heat radiation matrix 4; Inner surface at interior heat conduction substrate 3 is provided with some positioning screw holes 2.

The lateral surface of heat conduction substrate 3 in described radiating fin 1 evenly is arranged on.

Described radiator adopts aluminum material.

Adopt integrative-structure between outer heat radiation matrix 4, interior heat conduction substrate 3 and the heat conduction muscle rib 5.

Adopt integrative-structure between radiating fin 1 and the interior heat conduction substrate 3.

The above embodiment has only expressed better embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. LED bulb lamp radiator, it is characterized in that: comprise the outer heat radiation matrix and the interior heat conduction substrate that are linked together by some heat conduction muscle ribs, dispelling the heat outward is separated into some cavitys by heat conduction muscle rib between matrix and the interior heat conduction substrate; The outer surface that is positioned at aforementioned cavity at interior heat conduction substrate vertically is provided with radiating fin, leaves the space between radiating fin and the outer heat radiation matrix, between the radiating fin, radiating fin matrix between forms heat exchange chamber with dispelling the heat outward.

2. LED bulb lamp radiator according to claim 1 is characterized in that: the inner surface at interior heat conduction substrate is provided with some positioning screw holes.

3. LED bulb lamp radiator according to claim 1 is characterized in that: the lateral surface of heat conduction substrate in described radiating fin evenly is arranged on.

4. LED bulb lamp radiator according to claim 1 is characterized in that: the inner surface of the matrix that dispels the heat outward, heat conduction muscle rib surface are planarized structure or undaform curved-surface structure.

5. LED bulb lamp radiator according to claim 1 is characterized in that: described radiator adopts aluminum material or copper material.

6. LED bulb lamp radiator according to claim 1 is characterized in that: be structure as a whole between the matrix that dispels the heat outward, interior heat conduction substrate and the heat conduction muscle rib or divide body structure.

7. LED bulb lamp radiator according to claim 1 is characterized in that: be structure as a whole between radiating fin and the interior heat conduction substrate or divide body structure.