CN201335349Y

CN201335349Y - Heat radiator for LED (light emitting diode) lamp

Info

Publication number: CN201335349Y
Application number: CNU2009200188903U
Authority: CN
Inventors: 顾亚梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-09
Filing date: 2009-02-09
Publication date: 2009-10-28
Anticipated expiration: 2019-02-09

Abstract

The utility model discloses a heat radiator for an LED (light emitting diode) lamp, which comprises a first heat radiating plate and a second heat radiating plate, wherein, the first heat radiating plate is connected with the second heat radiating plate through a fixing device; at least one first groove and at least one second groove are formed on the opposite sides of the first heat radiating plate and the second heat radiating plate respectively; and a heat conducting pipe is arranged between the first groove and the second the groove and is provided with at least one heat radiating piece at both ends extending out of the first heat radiating plate and the second heat radiating plate respectively. The utility model has the following advantages: with a high heat conducting speed, the heat radiator can rapidly conduct the heat generated by the LED lamp to the heat radiating piece for the heat radiation; the heat radiator has a large heat radiating area and an obvious heat radiating effect; compared with a common heat radiator for the LED lamp, the heat radiator improves the heat radiating efficiency by 30% to 70%, so that the working temperature of the LED lamp is greatly lowered and the service life of the LED lamp is prolonged; the heat radiator has simple and reasonable structure and low production cost, and can be produced independently; and the heat radiator can be conveniently matched and used with the LED lamp.

Description

A kind of LED heat sink for lamp

Technical field

The utility model relates to LED heat sink for lamp field.

Background technology

At present, worldwide energy shortage has caused the great attention of various countries to power-saving technology.In field of illuminating device, the LED lamp more and more receives publicity with the characteristics of waiting so long in its efficient low-consume, energy-conserving and environment-protective, service life.But the LED lamp can produce a large amount of heats when work, has data to show that when LED lamp operating temperature reaches 55 ℃, will significantly reduce its service life, even do not burnt out, also can produce light decay, and LED lamp efficient is reduced greatly.Existing LED lamp heat-radiating device radiating effect is generally very poor, and the heat that the LED lamp that can't leave fast produces makes the LED light temperature too high and reduce service life easily, has seriously limited promoting the use of of LED light fixture.

Summary of the invention

The purpose of this utility model is to provide a kind of LED heat sink for lamp, and it can solve the deficiency that exists in the known technology, and adopt heat abstractor independently to leave fast heat that the LED lamp produces can be produced separately, and good heat dissipation effect is easy to use.

The utility model for achieving the above object, be achieved through the following technical solutions: a kind of LED heat sink for lamp, comprise first heat sink and second heat sink, first heat sink is connected by fixture with second heat sink, the relative side with second heat sink of first heat sink is offered at least one first groove and at least one second groove respectively, between first groove and second groove heat pipe is installed, heat pipe is installed at least one fin respectively at the two ends of stretching out first heat sink and second heat sink.

First heat sink or second heat sink are provided with the heat conduction glue-line away from a side of heat pipe.One side of first heat sink or second heat sink installs and fixes bolt, and set bolt and heat conduction glue-line are positioned at first heat sink or the second heat sink homonymy.First groove and second groove are arc grooves.The heat pipe radius is greater than the groove radius of first groove and second groove.

Advantage of the present utility model is: heat conduction is fast, the heat that can fast the LED lamp be produced is transmitted to fin and dispels the heat, area of dissipation is big, radiating effect is very obvious, relative common LED heat sink for lamp, the utility model radiating efficiency can improve 30%-70%, greatly reduces the operating temperature of LED lamp, has improved LED lamp service life; Simple for structure reasonable, low cost of manufacture can be produced separately; Be convenient to be used etc. with the LED lamp.

Description of drawings

Accompanying drawing 1 is a main TV structure schematic diagram of the present utility model; Accompanying drawing 2 is the structural representations of looking up of accompanying drawing 1; Accompanying drawing 3 is that structural representation cuts open in office of A-A portion in the accompanying drawing 1.

The specific embodiment

The contrast accompanying drawing is described further the utility model:

The utility model agent structure has first heat sink 3 and second heat sink, 6, the first heat sinks 3 and second heat sink 6 generally to be flat, is more conducive to heat radiation.First heat sink 3 can be connected by glue with 6 of second heat sinks, bolt connects, pin connects or draw-in groove connection etc. is fixedly connected.First heat sink 3 described in the utility model is offered at least one first groove 7 and at least one second groove 8 respectively with second heat sink, 6 relative sides, 8 of first groove 7 and second grooves are installed heat pipe 4, the length of heat pipe 4 is greater than the width of first heat sink 3 and second heat sink 6, heat pipe 4 is installed at least one fin 5 respectively at the two ends of stretching out first heat sink 3 and second heat sink 6, be that fin 5 is all installed at heat pipe 4 two ends, this technical scheme can improve area of dissipation, increases radiating efficiency.The substrate of LED lamp is installed on first heat sink 3 or second heat sink 6.

In the foregoing description, the number of first groove 7 and second groove 8 requires to decide according to the required heat radiation of LED lamp, and LED lamp power is high more, and the radical of required heat pipe 4 is many more, then the number of first groove 7 and second groove 8 is many more, and general LED lamp is provided with 4-6 root heat pipe 4 and gets final product.The number of described first groove 7 of present embodiment is general identical with the number of second groove 8.The several required heat radiations according to the LED lamp of the sheet of fin 5 described in the utility model require and decide, and LED lamp power is high more, and the sheet number of required fin 5 is many more.

The utility model is further characterized in that: in order to improve the LED lamp substrate to first heat sink 3 or second heat sink, 6 heat transfer efficiencies, away from a side of heat pipe 4 heat conduction glue-line 1 is set at first heat sink 3 or second heat sink 6, the LED lamp substrate is installed on the heat conduction glue-line 1.For the ease of the LED lamp is installed, install and fix bolt 2 in a side of first heat sink 3 described in the utility model or second heat sink 6, set bolt 2 is positioned at first heat sink 3 or second heat sink, 6 homonymies with heat conduction glue-line 1.In use, can reserve fixing hole in advance on the LED lamp substrate, then the LED lamp substrate is installed on the heat sink by set bolt 2, install very conveniently, the independent batch process and the assembling that are beneficial to LED lamp and radiator described in the utility model are used.In order to increase the contact area of heat sink and heat pipe 4, improve heat transfer efficiency, first groove 7 and second groove 8 are set to arc groove.For above-mentioned arc groove is fully contacted with heat pipe 4 surfaces, the radius of heat pipe 4 is set to the arc groove radius greater than first groove 7 and second groove 8, thereby heat pipe 4 is fully contacted with second heat sink 6 with first heat sink 3, further improved the utility model thermal conductivity.

Claims

1, a kind of LED heat sink for lamp, it is characterized in that: comprise first heat sink (3) and second heat sink (6), first heat sink (3) is connected by fixture with second heat sink (6), the relative side with second heat sink (6) of first heat sink (3) is offered at least one first groove (7) and at least one second groove (8) respectively, between first groove (7) and second groove (8) heat pipe (4) is installed, heat pipe (4) is installed at least one fin (5) respectively at the two ends of stretching out first heat sink (3) and second heat sink (6).

2, a kind of LED heat sink for lamp according to claim 1 is characterized in that: first heat sink (3) or second heat sink (6) are provided with heat conduction glue-line (1) away from a side of heat pipe (4).

3, a kind of LED heat sink for lamp according to claim 2, it is characterized in that: a side of first heat sink (3) or second heat sink (6) installs and fixes bolt (2), and set bolt (2) is positioned at first heat sink (3) or second heat sink (6) homonymy with heat conduction glue-line (1).

4, a kind of LED heat sink for lamp according to claim 1 is characterized in that: first groove (7) and second groove (8) are arc grooves.

5, a kind of LED heat sink for lamp according to claim 4 is characterized in that: heat pipe (4) radius is greater than the groove radius of first groove (7) and second groove (8).