CN201475752U

CN201475752U - Efficient heat radiating LED illuminating lamp with heat pipes

Info

Publication number: CN201475752U
Application number: CN2009202255512U
Authority: CN
Inventors: 仇智勇
Original assignee: DONGYING TAIKE TUOPU PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: TECH TOP OPTO ELECTRONIC TECHNOLOGY CO., LTD.
Priority date: 2009-08-26
Filing date: 2009-08-26
Publication date: 2010-05-19
Anticipated expiration: 2019-08-26

Abstract

The utility model relates to semiconductor illumination and heat radiation technology, in particular to an efficient heat radiating LED illuminating lamp with heat pipes. The heat radiating LED illuminating lamp adopts the following technical schemes: the lamp is formed by connecting an LED illumination module and a radiating module through heat pipes, wherein the LED illumination module is formed by embedding a plurality of uniformly arranged LED luminescent tubes on a heat-conducting plate, evaporation ends of the heat pipes clamp a plurality of heat pipes through an evaporation end pressure plate and a heat conducting plate therein at intervals, condensation ends of the heat pipes clamp the heat pipes through a condensation end pressure plate and a heating panel therein at intervals, and a plurality of heat radiation fins are arranged on the other surface of the heating panel. Compared with the prior art, the efficient heat radiating LED illuminating lamp achieves creative designs in the aspects of enlarging conduction contact surface, ventilation, heat radiation, etc., thereby improving the heat radiation efficiency to the largest extent; and the utility model further has the advantages of simple structure, convenient use, and low cost, and greatly prolongs the luminescent life of a high-power LED.

Description

The LED lighting of high-efficiency heat pipe heat radiation

Technical field

The utility model relates to a kind of semiconductor lighting heat dissipation technology, particularly a kind of LED lighting of high-efficiency heat pipe heat radiation.

Background technology

Great power LED is a direction of following illuminating product development, but great power LED has relatively high expectations to heat dissipation technology, and the power of led module is big more, and the heat flow density of its chip is just high more.The temperature of led chip sharply rises when the effect of radiator is bad, the very fast generation light decay of meeting, even damage led chip.At present, the radiator structure of high-power LED street lamp, Tunnel Lamp and Projecting Lamp adopts plate shaped extrusion section bar electronic radiation device or aluminium die-casting die radiator structure mostly.Adopt the light fixture of plate shaped extrusion section bar, be made up of many 1W great power LEDs, heat is concentrated at the center of its radiator, and is unbalanced to the heat radiation of great power LED, influence whole radiating effect and cause great power LED to produce light decay, shorten luminescent lifetime in the centre.Hot pipe technique is to utilize its inner superconductor in the evaporation ends fast vaporization of back of being heated, and heat is delivered to condensation end fast, from but a kind of new technology that heat pipe itself conducts fast, its heat conduction velocity is fast, efficient is high.The technology of utilizing hot pipe technique to solve the high-power LED lamp heat radiation in recent years is applied to a certain extent, and the mode of its application mainly is directly to dispel the heat by fin after utilizing heat pipe for thermal conductivity.This structural design causes the integral heat sink effect to have much room for improvement owing to also perfect not to the utmost at aspects such as conduction contact-making surface and ventilation and heat.

The utility model content

The purpose of this utility model is exactly the defective that exists at prior art, the LED lighting that provides a kind of high-efficiency heat pipe simple in structure, that radiating effect is good to dispel the heat.

Its technical scheme is: be that LED lighting module and radiating module two parts connect to form by heat pipe, wherein the LED lighting module is embedded on the heat-conducting plate by evenly distributed a plurality of LED luminous tubes, the evaporation ends of heat pipe is clamped in several heat pipes wherein at interval by evaporation ends pressing plate and heat conduction version, the condensation end of heat pipe is clamped in heat pipe wherein at interval by condensation end pressing plate and heat sink, is provided with a plurality of radiating fins at the another side of heat sink.

Such scheme also comprises: be arranged at intervals with a plurality of ventilating openings on evaporation ends pressing plate and condensation end pressing plate, heat sink is provided with louvre.Ventilating opening and the louvre intercommunication on heat sink on the condensation end pressing plate.Be provided with frame in the heat-conducting plate neighboring of inlaying LED luminous tube one side, be provided with lampshade in the frame.

The utility model has compared with prior art carried out innovative design at aspects such as improving conduction contact-making surface and ventilation and heat, thereby improved the efficient of heat radiation to greatest extent, had advantage simple in structure, easy to use, cheap and that can prolong the great power LED luminescent lifetime greatly.

Description of drawings

Fig. 1 is the light-emitting area structural map of a kind of embodiment of the present utility model.

Fig. 2 is a left view embodiment illustrated in fig. 1.

Fig. 3 is that A-A embodiment illustrated in fig. 1 is to profile.

Fig. 4 is a radiating surface structural map embodiment illustrated in fig. 1.

Fig. 5 is that B-B embodiment illustrated in fig. 1 is to profile.

1. heat-conducting plates among the figure, 2. lampshade, 3. great power LED, 4. heat pipe, 5. condensation end pressing plate, 6. ventilating opening, 7. evaporation ends pressing plate, 8. heat sink, 9. fin, 10. louvre.

The specific embodiment

By Fig. 1～shown in Figure 5, the utility model comprises heat pipe 4, great power LED 3 and heat sink 8, side at heat-conducting plate 1 is fixed with great power LED 3, the heat of giving great power LED 3 galvanizations and producing when luminous, by heat-conducting plate 1 heat is conducted evaporation ends to heat pipe 4, when evaporation ends is heated, liquid in the capillary evaporates rapidly, steam flows to an other end under small pressure differential, it is condensation end, and discharge heat, regelation becomes liquid, and liquid flows back to evaporator section along porous material by the effect of capillary force again.Because of heat-conducting plate 1 is connected so circulation incessantly with this heat pipe of heat sink 8 usefulness, heat is reached the condensation end of an other end by the evaporation ends of heat pipe.This circulation is carried out fast, and heat can be come by conduction continuously.The condensation end of this heat pipe 4 is fixed on heat sink 8 and condensation end pressing plate 5 the insides, the condensation end heat is by fin 9, carry out free convection with surrounding air, the louvre 10 of ventilating opening 6 on condensation end pressing plate 5 and heat sink 8 leads directly to and heat is delivered to rapidly outside the thermal source simultaneously, and the condensation end regelation becomes liquid.So circulation will control great power LED 3 temperature in controlled area charactert, thereby reduce the light decay of great power LED 3 to greatest extent, reach the purpose in the service life of raising great power LED 3.

For the thermal resistance between the evaporation ends that reduces heat-conducting plate 1 and heat pipe 4, can be coated with one deck heat-conducting silicone grease on the evaporation ends surface and be fastened onto heat-conducting plate 1 and evaporation ends pressing plate 7 between.Also the fastening means with evaporation ends is identical for condensation end fixing.

According to the situation of selecting for use of great power LED 3, lampshade 2 can be with also can.

In implementing the utility model, the number of combinations of heat sink 8 and the shape of fin 9 above it can be selected different number of combinations and shape according to different LED3 power and heat radiation requirement, as relative heat sink 8 tilt, multiple shape such as crooked or curling.

Claims

1. the LED lighting of high-efficiency heat pipe heat radiation, be that LED lighting module and radiating module two parts connect to form by heat pipe, wherein the LED lighting module is embedded on the heat-conducting plate by evenly distributed a plurality of LED luminous tubes, it is characterized in that: the evaporation ends of heat pipe is clamped in several heat pipes wherein at interval by evaporation ends pressing plate and heat conduction version, the condensation end of heat pipe is clamped in heat pipe wherein at interval by condensation end pressing plate and heat sink, is provided with a plurality of radiating fins at the another side of heat sink.

2. the LED lighting of high-efficiency heat pipe heat radiation according to claim 1, it is characterized in that: be arranged at intervals with a plurality of ventilating openings on evaporation ends pressing plate and condensation end pressing plate, heat sink is provided with louvre.

3. the LED lighting of high-efficiency heat pipe heat radiation according to claim 1 and 2, it is characterized in that: ventilating opening and the louvre intercommunication on heat sink on the condensation end pressing plate, be provided with frame in the heat-conducting plate neighboring of inlaying LED luminous tube one side, be provided with lampshade in the frame.