CN201555051U

CN201555051U - Led lamp

Info

Publication number: CN201555051U
Application number: CN2009201781347U
Authority: CN
Inventors: 傅小星
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-08-18
Anticipated expiration: 2019-09-22

Abstract

The utility model discloses an LED lamp comprising an LED, an LED installation plate and a radiator, wherein the LED installation plate is a printed circuit board on which LED radiating holes are arranged; LED pins are welded at two sides of the holes corresponding to the printed circuit board; and the bottom part of the LED lamp is contacted with the radiator by a heat-conducting insulating material. The LED lamp adopts the common printed circuit board to replace the traditional aluminium substrate and has the advantages of quick radiating speed, easy LED positioning and welding, low manufacturing cost, and the like.

Description

The LED light fixture

Technical field

The utility model relates to the light fixture product, exactly is the light fixture that illuminating source adopts LED.

Background technology

Along with the continuous development of LED light fixture, power constantly improves, and is also more and more higher to the requirement of heat radiation.

The operate as normal of LED all has a suitable temperature conditions, will be affected if exceed the performance of this temperature LED, if not fine control temperature has just lost LED lamp feature of long life.

Traditional way is that LED is installed on the aluminium base, and aluminium base is divided into three layers, and ground floor is the copper pool, and the second layer is a heat-conducting insulation material, and the 3rd layer is aluminium sheet.This effect of three layers is respectively:

Ground floor is done circuit and is used (conduction);

The second layer is crucial, and can it play and pass to aluminium sheet to the heat that LED produces fast, and thermal conductivity factor is generally below 2.5;

The effect of the 3rd layer of aluminium sheet is that heat-conducting insulation material is derived the radiator that the heat of coming is passed to light fixture again, also has the effect of installing.

Aluminium base is subjected to the restriction of factors such as material composition, manufacturing process, and its heat dispersion can not satisfy the instructions for use of high-power LED lamp.

In addition, the aluminium base cost is higher, and when completed knocked down products, LED is not easy location, welding difficulty on aluminium base.

The utility model content

At the problem that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of LED light fixture.

The utility model adopts following technical scheme:

A kind of LED light fixture, comprise LED, LED installing plate and radiator, described LED installing plate is a printed circuit board (PCB), offers LED heat radiation center hole position on it, the LED pin is welded on both sides, position, the corresponding hole of printed circuit board (PCB), and its bottom contacts with radiator by heat-conducting insulation material.

Preferably, the heat-radiating substrate and the heat-conducting insulation material of described LED bottom are close to, and heat-conducting insulation material is close to radiator.

Preferably, contact with radiator by the whole layer heat-conducting insulation material that is positioned at the printed circuit board (PCB) below bottom the described LED.

Preferably, contact with radiator by the heat-conducting insulation material that below printed circuit board (PCB), distributes bottom the described LED by the position, hole.

Preferably, described heat-conducting insulation material is specially the contour insulating materials of leading of aluminium nitride.

Itself just has three-decker traditional aluminium base, adds the other one deck heat-conducting insulation material that contacts with radiator, has four layers of heat conduction link, and radiating rate is slow.

LED light fixture provided by the utility model adopts common printed circuit board to replace traditional aluminium base, on printed circuit board (PCB), punch, the heat-radiating substrate of LED bottom is directly contacted with radiator by heat-conducting insulation material, reduced the heat conduction link, quickened the radiating rate of LED, heat is derived fast, and play insulating effect.

In addition, owing to adopted common printed circuit board, make the location of LED and welding become and be more prone to, help improving the quality of products and packaging efficiency, and the price of printed circuit board (PCB) is lower than aluminium base, help reducing the cost.

Description of drawings

Fig. 1 is the structural representation of LED installing plate in a kind of specific embodiment of the utility model;

Fig. 2 is the structural representation behind the LED installing plate welding LED shown in Figure 1;

Fig. 3 is that the LED bottom is by whole layer heat-conducting insulation material and radiator contacting structure schematic diagram;

Fig. 4 is heat-conducting insulation material and the radiator contacting structure schematic diagram of LED bottom by distributing by the position, hole;

Fig. 5 is the structural representation of LED installing plate in another specific embodiment of the utility model.

The specific embodiment

In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in detail below in conjunction with accompanying drawing.The description of this part only is exemplary and indicative explanation, should any restriction not arranged to protection domain of the present utility model.

LED light fixture in this specific embodiment is mainly assembled by parts such as LED, LED installing plate and radiators.

Please refer to Fig. 1, Fig. 2, Fig. 3, the LED installing plate adopts common printed circuit board 1, its integral body is elongated, offer a row LED louvre position 2, the pin of LED 3 is welded on 2 both sides, printed circuit board (PCB) 1 corresponding position, hole, the heat-radiating substrate of LED 3 bottoms contacts with radiator 5 by the whole layer heat-conducting insulation material 4 that is positioned at printed circuit board (PCB) 1 below, heat-radiating substrate and heat-conducting insulation material 4 are close to, heat-conducting insulation material 4 is close to radiator 5, directly to the radiator heat radiation, reduce the heat conduction link by heat-conducting insulation material 4, quickened the radiating rate of LED, heat is derived fast, and play insulating effect.

Above-mentioned heat-conducting insulation material can be selected in the middle of leading insulating materials from aluminium nitride is contour, and heat-conducting insulation material 4 also can distribute by the position, hole of LED 3, the corresponding one deck heat-conducting insulation material in the bottom of each LED 3, as shown in Figure 4.

Certainly, according to the difference of light fixture shape, function, its shape that printed circuit board (PCB) of LED is installed also is diversified.As shown in Figure 5, the printed circuit board (PCB) 1 in this embodiment ' be disc, on it by the mode of annular array offer position, some LED hole 2 ', all the other structures and first embodiment are basic identical, just repeat no more here.

More than LED light fixture provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims

1. a LED light fixture comprises LED, LED installing plate and radiator, it is characterized in that, described LED installing plate is a printed circuit board (PCB), offers LED heat radiation center hole position on it; The LED pin is welded on both sides, position, the corresponding hole of printed circuit board (PCB), and its bottom contacts with radiator by heat-conducting insulation material.

2. LED light fixture according to claim 1 is characterized in that, the heat-radiating substrate and the heat-conducting insulation material of described LED bottom are close to, and heat-conducting insulation material is close to radiator.

3. LED light fixture according to claim 1 is characterized in that, described LED bottom contacts with radiator by the whole layer heat-conducting insulation material that is positioned at the printed circuit board (PCB) below.

4. LED light fixture according to claim 1 is characterized in that, described LED bottom contacts with radiator by the heat-conducting insulation material that distributes by the position, hole below printed circuit board (PCB).