CN204986921U - Printing board dress LED radiator - Google Patents

Abstract

The utility model provides a printing board dress LED radiator for single the heat dissipation that the printing board pasted dress LED. Constitute by base plate, radiation tooth, heat conduction post. Wherein, the base plate is the metal flat board of the high heat conduction of a slice, the radiation tooth upright distributes in the one side of base plate, becomes integrative with the base plate, the heat conduction post is located the center of base plate another side, becomes integrative with the base plate. The beneficial effects of the utility model are that: it is direct with heat conduction to base plate through touching heat sink heat conduction post, conduct the radiation tooth through the base plate diffusion again, a plurality of radiation tooths dispel the heat in to the air with great area, can spread the heat sink energy of LED, loose by the efficient, improve the LED light efficiency, increase long life, and are energy -concerving and environment -protective, reduce cost, the radiator that can design different appearances and heat transfer efficiency according to the LED and the printing board of difference. Have good effect in the aspect of high -power LED heat dissipation, both be applicable to LED illumination field, also can be applied to the fields such as heat dissipation of power device simultaneously.

Description

A kind of printed board dress LED radiator

Technical field

The utility model belongs to lighting field, is specifically related to LED light source radiator.

Background technology

The features such as LED light source has that luminous efficiency is high, monochromaticjty good, long service life and environmental protection and energy saving, especially great power LED replaces the trend of the conventional light source such as incandescent lamp to establish.

The luminous efficiency of LED is along with the rising linearly downward trend of temperature; Meanwhile, if the heat that LED itself produces can not pass in time, also can affect device service life, therefore must carry out heat dissipation design to play the advantage of its efficient energy-saving to LED.

The dispel the heat scheme that generally adopts of current LED is the combination of insulating heat-conductive substrate and fin, and LED is mounted on insulating heat-conductive substrate, and fin and substrates into intimate are fitted, and the method can solve heat dissipation problem, but have following deficiency:

1) need the high thermal conductive substrate of insulation, production cost is higher

Insulating heat-conductive substrate is generally Heat Conduction Material and insulating materials through special processing out, and generally will again process generation printed board to it when installing LED, production cost is higher.

2) heat conductivility is bad

LED is heat sink with between insulating heat-conductive substrate and insulating heat-conductive substrate with all can produce the gap coordinated between fin, can not heat conduction fully; The thermal conductivity factor of insulating heat-conductive substrate itself is contour not as metallic copper, aluminium simultaneously, makes program overall thermal conductivity energy bad.

Utility model content

The purpose of this utility model is to provide a kind of printed board dress LED radiator, for the heat radiation of single printed board attachment LED.Overcome existing printed board dress LED heat abstractor above shortcomings.

The utility model comprises substrate, radiation tooth, heating column.Wherein, substrate is the metal plate of a slice height heat conduction; Radiation tooth is uprightly distributed in the one side of substrate, integral with substrate; Heating column is positioned at the center of substrate another side, integral with substrate, is more than basic technical scheme of the present utility model.

Have larger cooling surface area for obtaining setting radiator material amount, radiation tooth cross section is rectangle.

Occupation mode of the present utility model is: substrate is screwed the back side of LED in printed board, and radiation tooth is towards air, and heating column is through printed board, and contact LED's is heat sink.

The beneficial effects of the utility model are: directly conduct heat to substrate by touching heat sink heating column, radiation tooth is transmitted to again through substrate diffusion, multiple radiation tooth dispels the heat in air with larger area, can efficiently energy heat sink for LED be spread out of, dissipate, improve LED light effect, increase service life, energy-conserving and environment-protective, reduce costs, the radiator of different profile and heat transfer efficiency can be designed according to different LED and printed board.There is good effect in great power LED cooling, be both applicable to field of LED illumination, also can be applicable to the fields such as the heat radiation of power device simultaneously.

Heat spreader structures of the present utility model is simple, is beneficial to more large batch of production.

Accompanying drawing explanation

Fig. 1 is radiator view.

Fig. 2 is radiator top view.

Fig. 3 is radiator upward view.

Fig. 4 is radiator stereogram.

Fig. 5 is the heating column via hole and mounting screw via hole layout that are formed in LED printed board.

Fig. 6 is the use installation diagram of the utility model in LED printed board.

Detailed description of the invention

The present embodiment is a kind of radiator being applicable to OSRAMDragon series LED.

Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises substrate 1, radiation tooth 2, heating column 3.Wherein, substrate 1 selects a slice (40 × 40) mm2, the square copper of thickness about 3mm or the flat board of aluminium material, and there is Bolt through holes 1-1 substrate corner; Radiation tooth 2 is uprightly distributed in the one side of substrate 1, material identical with substrate is also integral with substrate, the preferred rectangle of cross section (the long limit of radiation tooth cross section is on vertically in radiator uses) of tooth, a uniform 80-120 radiation tooth on every plate base, radiation tooth height 10-12mm; Heating column 3 is positioned at the center of the another side of substrate 1, height 2mm, diameter 5mm, integral with substrate (can on blank substrate milling obtain substrate 1 and the heating column 3 of disjunctor), the polishing of heating column end face.

Consult Fig. 5, Fig. 6, the heating column 3 of radiator, through the via hole 4-1 in LED printed board 4, contacts with LED is heat sink, radiator arrangement is assembled in printed board 4 with through screw radiator base plate corner screw hole and LED printed board being installed via hole 4-2.

Claims (1)

1. a printed board dress LED radiator, it is characterized in that: be made up of substrate, radiation tooth, heating column, wherein, substrate is the metal plate of a slice height heat conduction; Radiation tooth is uprightly distributed in the one side of substrate, integral with substrate; Heating column is positioned at the center of substrate another side, integral with substrate, substrate has the nail fixed with printed board.