CN202708813U

CN202708813U - Led street lamp

Info

Publication number: CN202708813U
Application number: CN2012202138563U
Authority: CN
Inventors: 贾越鹏
Original assignee: DONGGUAN XINGYU PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: DONGGUAN XINGYU PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2012-11-23
Filing date: 2012-11-23
Publication date: 2013-01-30
Anticipated expiration: 2022-11-23

Abstract

The utility model provides an LED street lamp including a heat dissipating bottom case, a light-transmitting shade arranged on the heat dissipating bottom case, an LED light source module arranged in an empty cavity formed between the heat dissipating bottom case and the light-transmitting shade, a heat dissipating sheet group arranged between the LED light source module and the heat dissipating bottom case and a heat tube connected between the heat dissipating bottom case and the heat dissipating sheet group. The outer surface of the heat dissipating bottom case is provided with a plurality of radiating fins. According to the utility model, by adopting the combination of the heat tube and heat dissipating sheets for dissipating heat and through the quick temperature evening effect of the heat tube, the heat is conducted to the heat dissipating bottom case and is dissipated through the heat dissipating bottom case. The heat dissipating effect is improved substantially. The technical scheme is suitable for the heat dissipation of the high power LED street lamp, thereby guaranteeing the normal and continuous work of the LED street lamp and prolonging the service lifetime of the LED street lamp.

Description

The LED street lamp

Technical field

The utility model relates to a kind of lighting device, particularly a kind of LED street lamp.

Background technology

The LED lighting device that is assembled by the LED lamp is high because of its luminous efficiency, and power consumption is few, long service life, and security reliability is strong, can not produce mercury pollution and start the advantages such as fast, is widely used at lighting field.Compare with conventional road lamp (such as high-pressure mercury lamp), adopt great power LED as the street lamp of light source, such LED street lamp not only has the advantages such as colourity is good, non-maintaining, the life-span is long, also has good energy saving.And for the LED street lamp, heat radiation is its important problem that faces.

Adopt radiating mode to mainly contain in the existing LED street lamp: Natural Heat Convection, to install fan forced heat radiation, the heat radiation of installing fin etc. additional.The mode system complex of wherein using fan to dispel the heat is difficult to popularize, and the setting of fan is also consumed energy, the life-span is short, thereby reliability is low; And adopt fin to dispel the heat, though can play certain thermolysis, fin surface is long-pending limited, and radiating effect is desirable not enough.In addition, existing LED lamp post structure is complicated, makes to install inconveniently, can not satisfy powerful heat radiation requirement, in case heat that produces in the course of the work is untimely distributes for it, can cause fault, and its life-span is greatly affected, and reliability reduces.

The utility model content

The purpose of this utility model is to provide a kind of LED street lamp, is combined and dispels the heat, excellent in heat dissipation effect, the service life of improving the LED street lamp with fin, heat radiation drain pan by heat pipe.

For achieving the above object, the utility model provides a kind of LED street lamp, it comprises: the heat radiation drain pan, be located at the diffuser of heat radiation on the drain pan, be located at the interior led light source module of heat radiation drain pan and the formed cavity of diffuser, be located at the groups of fins between led light source module and the heat radiation drain pan and be connected in the heat pipe that dispels the heat between drain pan and the groups of fins, described heat radiation drain pan outer surface is provided with several pieces radiating fins.The inner surface of led light source module is provided with groove, groups of fins is close to heat radiation drain pan inner surface, groups of fins comprises the fin that several pieces intervals arrange, heat pipe one end is plugged in the groups of fins, the other end is contained in the groove of heat radiation drain pan, and the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

Described groups of fins is close to heat radiation drain pan inner surface, groups of fins comprises the fin that several pieces intervals arrange, heat pipe one end is plugged in the end of groups of fins near the heat radiation drain pan, the heat pipe other end be plugged in groups of fins away from the heat radiation drain pan in addition～end in, the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

Described heat radiation drain pan does not have groove on the inner surface of led light source module, heat pipe is placed in the groove, and groups of fins is located at heat radiation drain pan inner surface and is close on the heat pipe, and the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

Described led light source module comprises circuit board and several LED lamps, and several LED lamps are located at circuit board on the one side of groups of fins, and printing opacity covers in several LED lamp tops and is connected on the heat radiation drain pan.

Described heat pipe takes the shape of the letter U.

Described heat radiation drain pan adopts aluminium or other tool thermal diffusivity materials to make.

Described groups of fins is adopted and is made of aluminum or copper.

Also comprise sealing gasket, be located between led light source module and the diffuser.

The beneficial effects of the utility model: LED street lamp of the present utility model, adopting heat pipe to combine with fin dispels the heat, by the quick samming effect of heat pipe, heat is conducted to the heat radiation drain pan, shed by the heat radiation drain pan, radiating effect improves greatly. and be applicable to the heat radiation of high-power LED street lamp, guarantee the normal continuous firing of LED street lamp, improve its service life.

In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, the utility model is limited.

Description of drawings

Below in conjunction with accompanying drawing, by the specific embodiment of the present utility model is described in detail, will make technical side's the common reed of the present utility model and other beneficial effect apparent.

Fig. 1 is the decomposition texture schematic diagram of the LED street lamp of the utility model one embodiment;

Fig. 2 is the structural representation of figure l;

Fig. 3 is the cross-sectional structure schematic diagram of Fig. 2;

Fig. 4 is the decomposition texture schematic diagram of the LED street lamp of another embodiment of the utility model;

Fig. 5 is the cross-sectional structure schematic diagram two combining structure schematic diagrames after Fig. 4 makes up.

The specific embodiment

Technological means and the effect thereof taked for further setting forth the utility model are described in detail below in conjunction with preferred embodiment of the present utility model and accompanying drawing thereof.

As Figure 1-3, the LED street lamp of the utility model one embodiment, it comprises: heat radiation drain pan 1, be located at the diffuser 4 of heat radiation on the drain pan 1, be located at led light source module 3 in heat radiation drain pan 1 and the diffuser 4 formed cavitys, be located at led light source module 3 with dispel the heat between the drain pan l groups of fins 2 and be connected in the heat pipe 5 that dispels the heat between drain pan l and the groups of fins 2.Also comprise sealing gasket (not shown), be located between led light source module 3 and the diffuser 4.Wherein, described heat radiation drain pan l adopts aluminium or other tool thermal diffusivity materials to make, and its outer surface is integrally formed with several pieces radiating fins 11, and the setting of this radiating fin 11 has increased the surface area of heat radiation drain pan 1 greatly, thereby increase its area of dissipation, can reach good radiating effect.Described led light source module 3 comprises circuit board 31 and several LED lamps 32, several LED lamps 32 are located at circuit board 31 on the one side of groups of fins 2, diffuser 4 is connected on heat radiation drain pan l in several LED lamp 32 tops, diffuser 4 and heat radiation drain pan l can be connected such as screw by connector 6, perhaps fasten by buckle structure.Diffuser 4 is the transparent panel of high strength gram force, and it can go out in fine light transmission with LED lamp 32,

Reach the height illuminating effect.Described groups of fins 2 comprises the fin that several pieces intervals arrange, and adopts to be made of aluminum or copper, and this groups of fins 2 has the characteristics such as area of dissipation is large, rapid heat dissipation.Heat radiation drain pan l is provided with groove 12 towards the inner surface of led light source module 3, groups of fins 2 is close to heat radiation drain pan 1 inner surface, heat pipe 5-end is plugged in the groups of fins 2, other end basement is put in the groove 12 of heat radiation drain pan 1, led light source module 3 is close to relatively heat radiation drain pan 1-side of groups of fins 2, like this, when LED lamp 32 luminous generation heat, heat is transmitted on the groups of fins 2 from circuit board 31, quick samming by heat pipe 5 conducts to heat radiation drain pan 1, heat radiation drain pan l carry out heat exchange by the radiating fin Il on it and air and rapidly with dissipation of heat in air, thereby finish the heat radiation process.Described heat pipe 5 is heat pipe, and it is strip.At the present embodiment, the strip that described heat pipe takes the shape of the letter U.

During the utility model work, led light source module 3 electrified light emittings, seeing through diffuser 4 shines out, led light source module 3 produces amount of heat when work is luminous, heat can be pulled 31 by circuit rapidly and conduct to groups of fins 2, conduct to again heat pipe 5-end wherein, and but heat Quick self-heating pipe 5 one ends conduct to heat pipe 5 other ends, conduct fast to heat radiation drain pan l at heat pipe 5 other ends again, by heat radiation drain pan 1 and on radiating fin 11 carry out heat exchange with air and rapidly with dissipation of heat in air, heat radiation is efficient, guarantees the normal continuous firing of LED street lamp, carries for two its service lifes.

Shown in Fig. 4-5, the LED street lamp of another embodiment of the utility model, the different above-described embodiments of this reality yurt example be: described groups of fins 2 ' is close to heat radiation drain pan 1 inner surface, groups of fins 2 ' comprises the fin that several pieces intervals arrange, heat pipe 5 ' one end is plugged in the end of groups of fins 2 ' near heat radiation drain pan l, heat pipe 5 ' the other end is plugged in the other end of groups of fins 2 ' away from heat radiation drain pan 1, and led light source module 3 is close to groups of fins 2 ' the drain pan 1-side of relatively dispelling the heat.During the 3 work heat production of led light source module, heat conducts to groups of fins 2 fast, and an end of heat pipe 5 ' conducts to the other end of heat pipe 5 ' in groups of fins 2 ', reach quick even temperature effect, then heat conducts to heat radiation drain pan 1 again, by heat radiation drain pan 1 and on radiating fin Il and air carry out heat exchange and rapidly with dissipation of heat in air, reach good radiating effect, guarantee the normal continuous firing of LED street lamp, improve its service life.

As optionally implementing, described heat pipe 5 also can be contained in the heat radiation drain pan, it is by being provided with groove at the inner surface of drain pan 1 towards led light source module 3 that dispel the heat, heat pipe 5 is placed in the groove, groups of fins 2 is located at heat radiation drain pan 1 inner surface and is close on the heat pipe 5, and led light source module 3 is close to relatively heat radiation drain pan 1-sides of groups of fins 2.During heat radiation, the heat of led light source module 3 conducts to groups of fins 2, heat pipe 5 successively, conduct to heat radiation drain pan I by heat pipe 5 quick samming effects again, by the heat radiation drain pan 1 and on radiating fin Il and air carry out heat exchange and rapidly with dissipation of heat in air, reach equally good radiating effect.

In sum, LED street lamp of the present utility model, adopting heat pipe to combine with fin dispels the heat, by the quick samming effect of heat pipe, heat is conducted to the heat radiation drain pan, shed by the heat radiation drain pan, radiating effect improves greatly, be applicable to the heat radiation of high-power LED street lamp, guarantee the normal continuous firing of LED street lamp, improve its service life.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model claim.

Claims

1. LED street lamp, it is characterized in that, comprise: the heat radiation drain pan, be located at the diffuser of heat radiation on the drain pan, be located at the interior led light source module of heat radiation drain pan and the formed cavity of diffuser, be located at the groups of fins between led light source module and the heat radiation drain pan and be connected in the heat pipe that dispels the heat between drain pan and the groups of fins, described heat radiation drain pan outer surface is provided with several pieces radiating fins.

2. LED street lamp as claimed in claim 1, it is characterized in that, described heat radiation drain pan is provided with groove towards the inner surface of led light source module, groups of fins is close to heat radiation drain pan inner surface, groups of fins comprises the fin that several pieces intervals arrange, heat pipe one end is plugged in the groups of fins, and the other end is contained in the groove of heat radiation drain pan, and the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

3. LED street lamp as claimed in claim 1, it is characterized in that, described groups of fins is close to heat radiation drain pan inner surface, groups of fins comprises the fin that several pieces intervals arrange, heat pipe one end is plugged in the end of groups of fins near the heat radiation drain pan, the heat pipe other end is plugged in the other end of groups of fins away from the heat radiation drain pan, and the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

4. LED street lamp as claimed in claim 1, it is characterized in that, described heat radiation drain pan is provided with groove towards the inner surface of led light source module, heat pipe is placed in the groove, groups of fins is located at heat radiation drain pan inner surface and is close on the heat pipe, and the led light source module is close to groups of fins drain pan one side of relatively dispelling the heat.

5. LED street lamp as claimed in claim 1, it is characterized in that, described led light source module comprises circuit board and several LED lamps, and several LED lamps are located at circuit board on the one side of groups of fins, and printing opacity covers in several LED lamp tops and is connected on the heat radiation drain pan.

6. LED street lamp as claimed in claim 1 is characterized in that, the described heat pipe strip that takes the shape of the letter U.

7. LED street lamp as claimed in claim 1 is characterized in that, described heat radiation drain pan adopts aluminium or other tool thermal diffusivity materials to make.

8. such as the described LED street lamp of claim l, it is characterized in that, also comprise gasket, be located between led light source module and the diffuser.

9. LED street lamp as claimed in claim 1 is characterized in that, described diffuser is the transparent panel of high strength gram force, and described groups of fins is adopted and is made of aluminum or copper.