CN203731353U

CN203731353U - LED (light emitting diode) radiator

Info

Publication number: CN203731353U
Application number: CN201420116302.0U
Authority: CN
Inventors: 吴为生
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-15
Filing date: 2014-03-15
Publication date: 2014-07-23
Anticipated expiration: 2024-03-15

Abstract

The utility model discloses an LED (light emitting diode) radiator which is used on a dome lamp, a ceiling lamp or other lamps. The LED radiator is shaped like a long cylinder; the side wall of the cylinder is formed by spiral radiating rings; gap layers are reserved among all rings; the axis center of the cylinder is hollow tubular; the lower bottom surface of the cylinder is of a heat conduction circuit board only provided with an LED chip with the power being lower than 1 watt in a pasting mode; the LED radiator has the advantage of good heat conduction due to the construction mode. Multiple such radiators can be mutually spaced, combined and applied to the lamps for dispersed heat conduction, the LED radiator is suitable for the dome lamp and the ceiling lamp designed with special appearances and structures, the heat conduction circulation property of the radiator with air is better than that of the existing lump radiator, and the thermal damage and light attenuation phenomena of an LED are reduced.

Description

LED radiator

Technical field

The utility model relates to a kind of illuminating LED radiator, is especially installed on the heat abstractor on LED ceiling light or pendent lamp.

Background technology

Although LED is the highest electric light source of luminous efficiency up to the present, but limited by current technology, in the time sending luminous energy, there is very large a part of electric energy to be converted to heat energy, need to carry out radiating treatment with radiator, just can avoid cause thermal damage and the light decay of LED, therefore the heat abstractor that, effectively, performance is high is most important to the working life of LED.The radiator of the light fixtures such as existing LED ceiling light or pendent lamp is all the block aluminium radiator that adopts oblateness or deltiod, multiple great power LEDs concentrate on and on a module radiator, carry out heat conduction and radiating treatment, radiator end face is against ceiling or base plate, heat radiation free air space is very narrow, for the purpose of attractive in appearance, often whole radiator must be wrapped in outer cover, so not only the radiating surface of radiator is few, poor with the hot-air conduction flow general character of lamp body space outerpace, affect radiating effect, and outward appearance and structural design are subject to larger restriction, be difficult to make ceiling light or the furred ceiling that some particular design require, be difficult to meet the development requirement of LED light fixture.

Summary of the invention

Have problem poor with the surrounding air heat-conducting flow general character and block structure restriction LED Design of Luminaires in order to solve the radiator of the light fixtures such as existing LED ceiling light pendent lamp, the utility model will provide the LED radiator that a kind of heat-conducting flow general character energy dispelling the heat between wide and air is good, be easy to carry out flexible design on the light fixtures such as ceiling light.

The technical solution adopted in the utility model is: the large four times of above cylindrical LED radiators of aspect ratio diameter, its cylindrical side is made up of spirality cooling ring, between each circle, leave void layer, cylinder axis center is hollow pipe, cylinder upper bottom surface is the holder being connected with lamp socket, cylinder bottom surface is the heat conducting circuit board that dress pastes LED chip, the Power Limitation of the LED chip installed is above below one watt, and the hollow pipe arrival upper end that LED chip contact conductor penetrates cylinder axis center is connected with driving power circuit.The heat producing when LED work is along the conduction of spirality cooling ring, and void layer and hollow pipe can make spirality cooling ring ectonexine form the air-flow of convective motion towards the heat of surrounding air transmission, are conducive to heat and distribute to outside.Form heat sink matrix spaced apart from each other and can form the heat abstractor of high power LED ceiling lamp, pendent lamp with branched such radiator.

The beneficial effects of the utility model are: between partially long cylindrical helical structure radiator and air to contact wide heat dispersion high, form heat sink matrix spaced apart from each other with branched such radiator, between form the heat dissipation channel of spacious circulation, the heat-conducting flow general character can be good, greatly improve the ability that heat distributes to lamp body space outerpace, and every radiator is only one watt of following power LED chip cooling, relatively common flat block radiator centralized system radiating effect is better, elongated cylindrical heat-radiating device can not add outer cover and directly expose the special construction design that is conducive to the light fixture such as ceiling light and pendent lamp simultaneously.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is cylindrical helical radiator side surface configurations figure of the present utility model.

Fig. 2 is cylindrical helical radiator longitudinal cross-section cutaway view.

Fig. 3 is the upward view that the heat conducting circuit board dress of cylindrical helical radiator bottom surface pastes a LED chip.

Fig. 4 is a kind of LED ceiling light design sketch that adopts branched radiator of the present utility model to form.

Detailed description of the invention

As shown in Figure 1, the cylindrical helical radiator 1 of being manufactured by aluminium alloy, 1.5 centimetres of diameters, highly five times of left and right of diameter, growth stripe shape, cylindrical side is the cooling ring 11 of five circle left-and-right spiral shapes, between every circle is upper and lower, separates and form void layer 12, the center of cylinder axis is blank pipe 15, bottom surface connects a circular heat conducting circuit board 13, dress pastes LED chip 2 below, and cylinder upper bottom surface is holder 14, and center hole 141 is for installing and be connected the hole that penetrates that doubles as LED contact conductor 3 with light fixture seat board.The internal structure of cylindrical heat-radiating device as shown in Figure 2, can clearlyer see by this longitudinal cross-section view, and central hollow tube 15 has two LED contact conductors 3 to draw through upper bottom surface for joining with power bus from bottom surface.The structure of the heat conducting circuit board dress subsides LED of cylindrical heat-radiating device bottom surface as shown in Figure 3, the LED chip 2 of one one watt is attached on heat conducting circuit board 13, and the both positive and negative polarity 21 that two contact conductors 3 connect LED enters in radiator blank pipe 15 through the line hole 131 on heat conducting circuit board again.Fig. 4 adopts radiator of the present utility model to make the embodiment appearance effect figure of a LED ceiling light, here, tens cylindrical helical radiators 1 have longly to be had shortly, and holder 14 separates each other to hang and is arranged on ceiling light base 4, and LED radiator does not add any outer cover and is directly exposed to the interior space, its simple structure, save material, cost is low, good looking appearance, the particularly good heat dissipation effect of LED, can extend life-span of ceiling light greatly.Ceiling light, the pendent lamp that also can go out in conjunction with ornament materials innovative design various novelties attractive in appearance with this radiator, for some high-grade light fixture, aluminium alloy heat radiator material also can change the copper product manufacture that price is higher into, to improve pyroconductivity.

Claims

1. a cylindrical LED radiator, its aspect ratio diameter is large more than four times, cylindrical side is made up of spirality cooling ring (11), between each circle, leave void layer (12), cylinder axis center is hollow pipe (15), cylinder upper bottom surface is the holder (14) being connected with lamp socket, cylinder bottom surface is the heat conducting circuit board (13) that dress pastes LED chip (2), LED chip (2) Power Limitation of installing is below one watt, and the hollow pipe (15) that LED chip contact conductor (3) penetrates cylinder axis center arrives upper end for being connected with driving power circuit.