CN201606694U

CN201606694U - High-power LED light fitting

Info

Publication number: CN201606694U
Application number: CN2009203119924U
Authority: CN
Inventors: 张承德; 谢中; 翦知渐; 师懿; 杨勉; 傅高武
Original assignee: HUNAN MINGHE LIGHTING EQUIPMENT CO Ltd; Hunan University
Current assignee: HUNAN MINGHE LIGHTING EQUIPMENT CO Ltd; Hunan University
Priority date: 2009-10-01
Filing date: 2009-10-01
Publication date: 2010-10-13
Anticipated expiration: 2019-10-01

Abstract

The utility model discloses a high-power LED light fitting which comprises a front shell, a rear shell and a lamp panel component, wherein the front shell is connected with the lamp panel component; and the front shell and the rear shell are provided with heat pipes, and are communicated with each other by the heat pipes. The high-power LED light fitting leads the high-power LED front shell to be communicated with the rear shell by the heat pipes, so that the heat on the front shell can be rapidly transferred onto the rear shell, and the temperature uniformity can be greatly improved; therefore, the high-power LED light fitting effectively improves the heat dissipation efficiency of the surface of the rear shell, reduces the temperature of a light source, greatly improves the service power of the light source, reduces optical attenuation, and prolongs the service life of the light source.

Description

High-power LED lamp

Technical field

The utility model relates to a kind of high-power LED lamp.

Background technology

LED lamp pearl in the high-power LED lamp has the power about 70% to be used for heating, and its heat radiation is the key of product design, and the bad meeting of dispelling the heat causes producing serious light decay, and influences life of product.Therefore, high-power LED lamp all is to utilize the product casing surface radiating.Though several times improve, the high-power LED lamp radiating effect makes moderate progress, thermal-conduction resistance is big, the not good defective of radiating effect but still exist, and has limited the application of high-powered LED lamp.

The structure of first generation mono-hull high-powered LED lamp is seen Fig. 1, and cover 1, glass 2, lamp plate assembly 3, fixed head 4, housing 5 and sealing ring are assembled into one, and by housing 5 heat radiations, radiating effect is poor.The structure that present high-powered LED lamp generally adopts is seen Fig. 2.Cover 1, glass 2, lamp plate assembly 3, procapsid 4, back casing 5 and sealing ring are assembled into one, and its radiator structure is to be procapsid 4, back casing 5 with Design of Luminaires, and procapsid 4 connects with lamp plate assembly 3.Design has radiating fin on the procapsid 4.Compare radiating effect with first generation design big improvement is arranged.But the thermal resistance that exists heat heat inhomogeneous and procapsid to pass to back casing is big, defectives such as the back casing radiating efficiency is low, weak effect.

Summary of the invention

In order to solve the above-mentioned technical problem that existing high-power LED lamp heat radiation exists, the utility model provides a kind of high-power LED lamp of simple in structure, good heat dissipation effect.

The technical scheme that the utility model solves the problems of the technologies described above is: comprise procapsid, back casing, lamp plate assembly, procapsid connects with the lamp plate assembly, and described procapsid and back casing are provided with heat pipe, and the heat pipe of procapsid and back casing is connected.

Technique effect of the present utility model is: heat pipe is as a kind of high-performance heat transfer components, down long-pending in same cross-sectional, working medium is heated and can be higher than the heat of hundred times on the best metal of thermal conductivity after the phase transformation with extremely low thermal resistance transmission in the heat pipe, can under airtight extreme condition, effectively heat be passed on the lamp outer casing by heat sink, have that thermal resistance is little, in light weight, thermal conductivity is high, simple in structure, need not to add advantages such as additional cycles power.The utility model is provided with the heat pipe that is connected on the forward and backward housing of high-power LED lamp, heat on the procapsid can be delivered to rapidly on the back casing like this, temperature homogeneity is significantly improved, thereby effectively improved the radiating efficiency on back casing surface, reduced the temperature of light source, can significantly improve the use power of light source, reduce light decay, improve light source life.

Be further described this realization is novel below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structure chart 1 of existing LED light fixture.

Fig. 2 is the structure chart 2 of existing LED light fixture.

Fig. 3 is a structural representation of the present utility model.

The specific embodiment

Referring to Fig. 3, the utility model comprises cover 1, glass 2, lamp plate assembly 3, procapsid 4, back casing 5, back shroud 6, heat pipe 7, heat pipe 8, heat pipe 9.Heat pipe 7, heat pipe 9 are installed on procapsid 4, back casing 5, and the front and back housing is by heat pipe 8 couplings.The advantage of this structure is to utilize the low thermal resistance of heat pipe, the high capacity of heat transmission, and the thermal-conduction resistance that effectively reduces housing 4 and housing 5 inside can distribute heat quickly and evenly on two housings.With linking to each other with heat pipe 8 between procapsid 4, the back casing 5, the heat on the procapsid 4 can be passed on the back casing 5 fast with very low thermal resistance.

Claims

1. a high-power LED lamp comprises procapsid, back casing, lamp plate assembly, and procapsid connects with the lamp plate assembly, it is characterized in that: described procapsid and back casing are provided with heat pipe, and procapsid and back casing are connected by heat pipe.