CN204829502U

CN204829502U - LED shot -light

Info

Publication number: CN204829502U
Application number: CN201520483633.2U
Authority: CN
Inventors: 杜健康; 孙伟斌; 刘丽兰; 马仁飞; 黄琦; 梅健健
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2015-07-08
Filing date: 2015-07-08
Publication date: 2015-12-02
Anticipated expiration: 2025-07-08

Abstract

The utility model relates to a LED shot -light, including lamp holder, radiator, heat pipe, aluminium base board, chip, lens, lamp lid, open on the lamp holder have the louvre, to discharge orifice, assembly screw, electrical socket, lamp holder and radiator are through the assembly of assembly screw, the heat pipe is installed in the outside of radiator, and it has fin a, fin b to distribute in turn on the radiator, chip package is on aluminium base board, lens fixation closely arranges with the chip on aluminium base board, aluminium base board is fixed inside the radiator, the lamp lid assembles in the radiator bottom. The utility model discloses LED shot -light passes through heat pipe and the dual heat dissipation of fin, and advantage such as have radiating efficiency height, long service life, relative mass is little, configuration design is good is the lamps and lanterns that the ideal is reliable.

Description

A kind of LED spotlight

Technical field

The utility model relates to a kind of LED spotlight, belongs to technical field of semiconductor illumination.

Background technology

Because LED has, volume is little, luminous efficiency is high, energy consumption is low, brightness high, and LED illumination lamp has novel green light source that is energy-conservation and environment-friendly function concurrently.But due to the restriction of heat dissipation problem, LED can produce serious light decay phenomenon in time metric.Therefore, the heat dispersion of the heat dissipation problem of LED, especially high-power LED spotlight is poor, becomes the bottleneck of LED illumination lamp application, how to study the radiator structure of LED and carry out optimal design, developing the key that the LED lamp with good heat radiating function is research and development.

Heat pipe can make full use of heat-conduction principle and refrigeration filling Rapid Thermal hereditary property, is delivered to rapidly external through capillary by the heat of thermal objects, and its capacity of heat transmission has exceeded the capacity of heat transmission of any known metal.Because high, the equal temperature characteristics of heat pipe hot biography ability is good, there is the ability of variable heat flux density, and profile is easily processed, be easy to the features such as assembling, be widely used on various radiator, for increasing area of dissipation, promote Beautification design.The development through halfth century produced by heat pipe, and technology maturation, product price is cheap, is a kind of desirable artificial radiating component.

Utility model content

For the defect that prior art exists, the purpose of this utility model is to provide a kind of LED spotlight, not only heat pipe heat radiation and LED is combined, and has rational in infrastructure, good looking appearance, and combination property is superior, the feature that processing and manufacturing cost is low.

In order to achieve the above object, the utility model adopts following technical scheme:

A kind of LED spotlight, comprises lamp holder, radiator, heat pipe, aluminium base, chip, lens, light cover; Described lamp holder has louvre, convection holes, assembling screw, supply hub; Described lamp holder and radiator are by the assembling of assembling screw; Described heat pipe is arranged on the outside of radiator, radiator is alternately distributed with fin a, fin b; Described chip package is on aluminium base, and described lens are fixed on aluminium base, with chip close arrangement; Described aluminium base is fixed on radiator inside; Light cover is assemblied in bottom radiator.

Above-mentioned LED spotlight adopts conventional contacts heat radiation and the two radiating mode of heat pipe heat radiation, and such design not only makes full use of the hypervelocity heat conduction of heat pipe, the characteristic of pipeline isothermal, and high temperature contact area is increased, and enhances the radiating efficiency of radiator shell.

Above-mentioned radiator designs according to heat pipe shape, and top adopts fillet design, and perfect laminating heat pipe shape, such layout adds the contact area of radiator and heat pipe, and the heat pipe preventing mechanical oscillation to cause is out of shape and breaks.

The mode that above-mentioned radiator outside fin adopts fin a and fin b to combine, fin a root is that single heat exports, and increases flow area, and afterbody is that two branch heat exports, and makes full use of the confined space and expands efficiently radiates heat area; Fin b derives heat pipe heat by radiator, designs brief, generous, contributes to convection current and strengthens.

The utility model compared with prior art, has following substantive distinguishing features and advantage:

Radiating efficiency is excellent: adopt heat pipe heat radiation, solve the difficult problem that LED spotlight chip circumference local temperature is too high, achieve quick conductive, increases the distribution area of relatively-high temperature; The mode adopting fin a and fin b to combine, expands cross-ventilated heat-conducting area; Both coordinate thus effectively accelerate radiating rate, add radiating efficiency.

Service life increases: the mode that the utility model LED spotlight adopts conventional contacts heat radiation and heat pipe heat radiation to combine, radiating rate is fast, efficiency is high, LED chip local temperature is low, inhibit the light decay phenomenon of LED spotlight, make LED spotlight keep optimum performance for a long time, increase its service life.

Relative mass reduces: adopt heat pipe heat radiation, utilize chemical change heat conduction, and radiating efficiency decreases the use of highly heat-conductive material while promoting; Heat pipe quality is light, and relative surface area is large, the highly heat-conductive material of identical table area, and heat pipe quality wants light a lot; The design that radiator outside fin a and fin b combines, takes full advantage of the confined space, reasonably increases area of dissipation, plays an important role to reduction relative mass.

Configuration design is attractive in appearance: above-mentioned each parts all adopt and are arranged symmetrically with, and lamp holder louvre is linearly arranged from short to long, and convection holes is distributed in both ends of power, and hand over louvre and echo mutually, curve is combined with straight line, create an aesthetic feeling; Assembling screwed hole sink formula design, when not affecting assembling, conceal jockey cleverly; Radiator outside fin a draws in from the bottom to top gradually, increases the intensity of fin and whole lamp, have a graceful figure while middle formation cross-ventilation cavity; Fin b track is bright and clear, jointly forms dome-type design with fin a, is formed and echoes, avoid aestheticly tired dexterously.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment overall structure sectional view.

Fig. 2 is the utility model embodiment overall structure top view.

Fig. 3 is the utility model embodiment overall structure front view.

Fig. 4 is the utility model embodiment overall structure left view.

Fig. 5 is the utility model embodiment overall structure upward view.

Fig. 6 is the utility model embodiment overall structure isometric view.

Detailed description of the invention

Preferred embodiments accompanying drawings of the present utility model is as follows:

See Fig. 1 ~ Fig. 6, a kind of LED spotlight, comprises lamp holder 1, radiator 2, heat pipe 3, aluminium base 4, chip 5, lens 6, light cover 7; Described lamp holder 1 has louvre 8, convection holes 9, assembling screw 10, supply hub 11; Described lamp holder 1 and radiator 2 are assembled by assembling screw 10; Described heat pipe 3 is arranged on the outside of radiator 2, radiator 2 is alternately distributed with fin a12, fin b13; Described chip 5 is encapsulated on aluminium base 4, and described lens 6 are fixed on aluminium base 4, with chip 5 close arrangement; It is inner that described aluminium base 4 is fixed on radiator 2; Light cover 7 is assemblied in bottom radiator 2.

After the energising of the present embodiment LED spotlight, chip 5 luminescence also produces heat, first heat is absorbed by aluminium base 4 and passes to radiator 2, outline fin a12 and the fin b13 of heat pipe 3 and radiator 2 is passed to by the thin plate of radiator 2, fin a12 contacts with air with fin b13, by heat radiation and cross-ventilation release heat.

In the process that heat transmits, aluminium base 4 end face and side and radiator 2 interior contact, bonded area reaches maximum; Radiator 2 is combined at LED lamp center with heat pipe 3 by thin plate, heat pipe 3 absorbs heat, and in pipe, heat-conducting medium gasification absorbs heat, flows to the liquefaction of heat pipe 3 afterbody and releases heat, and absorb high temperature place, heat pipe 3 top by heat pipe 3 inner wall hair tubule capillarity, move in circles.Heat pipe 3 rate of heat exchange exceedes any known metal, and isothermal is effective, and the temperature difference of heat pipe 3 center top and below afterbody is very little, therefore expands the area of dissipation in relatively-high temperature district, improves radiating efficiency and radiating rate.

Claims

1. a LED spotlight, is characterized in that, comprises lamp holder (1), radiator (2), heat pipe (3), aluminium base (4), chip (5), lens (6), light cover (7); Described lamp holder (1) has louvre (8), convection holes (9), assembling screw (10), supply hub (11); Described lamp holder (1) and radiator (2) are by assembling screw (10) assembling; Described heat pipe (3) is arranged on the outside of radiator (2), and (2) are alternately distributed with fin a(12 with radiator), fin b(13); Described chip (5) is encapsulated on aluminium base (4), and described lens (6) are fixed on aluminium base (4), with chip (5) close arrangement; It is inner that described aluminium base (4) is fixed on radiator (2); Light cover (7) is assemblied in radiator (2) bottom.