CN202561581U

CN202561581U - Light-emitting diode (LED) street lamp

Info

Publication number: CN202561581U
Application number: CN2012201793651U
Authority: CN
Inventors: 王元成; 王丽娜; 刘源
Original assignee: Individual
Current assignee: ZHEJIANG SINGBEE LIGHTING TECHNOLOGY Co Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-11-28
Anticipated expiration: 2022-04-25

Abstract

The utility model relates to the field of lighting lamps and provides a light-emitting diode (LED) street lamp. The LED street lamp comprises an aluminum shell, a connecting pipe, a power source and a plurality of modules, wherein the modules are arranged on the aluminum shell in parallel and the connecting pipe is fixedly connected with the back of the aluminum shell. The modules comprise a heat dissipation module, a heat transmission piece, a printed circuit board (PCB), a plurality of LEDs, a silica gel sealing waterproof ring, a lens and a fixing part from top to bottom in sequence. The LED street lamp has the advantages of being novel in structure, good in heat dissipation effect and long in service life. In addition, structure of the modules is reasonable.

Description

A kind of LED street lamp

Technical field

The utility model relates to field of illuminating lamps, relates in particular to a kind of LED street lamp.

Background technology

Energy shortage is the hot issue of the world today, and in illuminating industry, led light source is because multiple advantages such as its efficient, energy-saving and environmental protection, long-lives, is that to replace energy consumption high, the first-selection of the traditional lighting that the life-span is short.The LED street lamp is used widely; Module is most important parts in the LED street lamp; It mainly comprises radiating block, pcb board, lens and a plurality of LED; Pcb board is installed on the radiating block, and the light transmission lens that LED sends penetrate, and the heat that LED work produces reaches radiating block through pcb board and dissipates fast.In order to keep strengthening the water-tight property of LED; Also can between, LED and lens, the silica gel waterproof sealing gasket be set; A plurality of through holes are set on the silica gel waterproof sealing gasket, and the position of through hole is with corresponding with a plurality of LED couplings on the pcb board with quantity, and promptly LED just passes the through hole on the silica gel waterproof sealing gasket; The printing opacity that through hole does not promptly influence LED can tighten LED again, and has played the effect of water-tight.But still there are many weak points in existing LED street lamp: 1. radiating effect is poor, causes service life short; 2. the silica gel waterproof sealing gasket unreasonable structure in the module; Specifically be to produce great amount of heat after the LED work to make the silica gel waterproof sealing gasket produce distortion; Through hole on the silica gel waterproof sealing gasket is to the chucking effect meeting variation of LED; The part of silica gel waterproof sealing gasket is blocked the light that LED sends easily, has promptly influenced the luminous efficiency of LED, can be subjected to displacement the effect that also will influence its water-tight after the distortion of silica gel waterproof sealing gasket; 3. modular structure is single; Part of module is not suitable for street lamp, and the cavity volume shape that specifically is the lens in the module all is the hemispherical or the circular arc of rule, LED send only himself being that mid point is symmetric hot spot; Therefore this type light fixture is not suitable for the light source as the road surface use; Because street lamp generally is mounted in a side of road on highway, symmetric hot spot makes the utilization rate of light low, and the light source that uses on the road is preferably forced toward a direction luminous.

Summary of the invention

The purpose of the utility model is to have the deficiency that the LED street lamp exists now in order to overcome, and a kind of novel structure is provided, good heat dissipation effect, and modular structure is rational in infrastructure, the LED street lamp that sealed waterproof effect is good.

In order to realize the foregoing invention purpose, the technical scheme below the utility model has adopted:

A kind of LED street lamp comprises aluminium shell, tube connector, power supply and a plurality of module, and a plurality of modules are installed in parallel on the aluminium shell, and tube connector is connected with the aluminium shell back fixation; Aluminium shell comprises two arc fixtures, crossbeam and screening dust hood, and crossbeam and screening dust hood all are fixed between two arc fixtures, and hide the top that dust hood is in the aluminium shell back side, and the power supply that links to each other with module is installed in the arc fixture; Said module comprises radiating block, heat transfer sheet, pcb board, a plurality of LED, silica gel sealing water proof ring, lens and fixture from top to bottom successively, and pcb board is fixed on the radiating block, and heat transfer sheet is between radiating block and the pcb board, and a plurality of LED are fixed on the pcb board; The middle part of silica gel sealing water proof ring is provided with a square through hole that supplies all LED to pass; Lens, silica gel sealing water proof ring and pcb board are fixed on the radiating block through fixture, and radiating block is fixed on the aluminium shell.

As preferably, said lens are made up of installing plate and a plurality of light control volumes of being connected as a single entity with it; The position of light control volume is corresponding with the LED coupling on the pcb board, and the light control volume forms the cavity volume that holds LED of downward protrusion, and the LED bottom is in the cavity volume of light control volume; The medial surface of said light control volume is a light entrance face, and lateral surface is a light-emitting face, and light entrance face and light-emitting face are the curved surface of non-regular shape.Light entrance face and light-emitting face are the curved surface of non-regular shape; Promptly through the refraction effect of light on two curved surfaces; Reach the purpose of control light trend, distribute, can carry out independent control to the light of diverse location on the curved surface thereby obtain required light; It is reflected to desired direction direction of the light intensity system of promptly sending ray.

As preferably, said module is 2-7 that is arranged in parallel within on the aluminium shell.

As preferably, said fixture is a screw.

By the LED street lamp of technique scheme design, the aluminium shell good heat dissipation effect, module can be not impaired through the silica gel sealing water proof ring sealing of special construction.The advantage of this LED street lamp is a novel structure, the good heat dissipation effect long service life, and modular structure is rational in infrastructure.

Description of drawings

Fig. 1: the positive perspective view of the LED street lamp of the utility model.

Fig. 2: the LED street lamp back side perspective view of the utility model.

Fig. 3: the blast structural representation of module in the LED street lamp of the utility model.

Fig. 4: the structural representation of light control volume in the LED street lamp of the utility model.

The specific embodiment

Do below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4 the utility model and to further describe.

Like Fig. 1, Fig. 2, Fig. 3 and a kind of LED street lamp shown in Figure 4, comprise aluminium shell 1, tube connector 2, power supply and a plurality of module 3, a plurality of modules 3 are installed in parallel on the aluminium shell 1, and tube connector 2 is connected with aluminium shell 1 back fixation.Aluminium shell 1 comprises two arc fixtures 11, crossbeam 12 and hides dust hood 13; Crossbeam 12 and screening dust hood 13 all are fixed between two arc fixtures 11; And hide the top that dust hood 13 is in aluminium shell 1 back side, the power supply that links to each other with module 3 is installed in the arc fixture 11.

Module 3 generally is between 2-7, and all rule is arranged in parallel within on the aluminium shell 1.Module 3 comprises radiating block 31, heat transfer sheet 32, pcb board 33, a plurality of LED37, silica gel sealing water proof ring 34, lens 35 and fixture 36 from top to bottom successively, and fixture 36 is screws.Pcb board 33 is fixed on the radiating block 31, and heat transfer sheet 32 is between radiating block 31 and the pcb board 33, and a plurality of LED37 are fixed on the pcb board 33.The middle part of silica gel sealing water proof ring 34 is provided with a square through hole that supplies all LED37 to pass, and the square through hole 341 of silica gel sealing water proof ring 34 and the waterproof main body between the outer ledge are provided with the fixture installing hole.The outer contour shape coupling of pcb board 33, silica gel sealing water proof ring 34 and lens 35 is square.The fixture installing hole that fixture 36 passes lens 35, silica gel sealing water proof ring 34 is fixed on lens 35, silica gel sealing water proof ring 34 and pcb board 33 on the radiating block 31, and radiating block 31 is fixedly mounted on the aluminium shell 1.Radiating block 31 is that thermal conductivity is the fine aluminium radiating block of 237W/mK, and heat transfer sheet 32 is graphite flakes.

Lens 35 are divided into two kinds, and a kind of is planar lens.Another kind of as shown in Figure 4, be to constitute by installing plate 351 and a plurality of light control volumes 352 of being connected as a single entity with it.The outer contour shape coupling of the outer contour shape of installing plate 351 and pcb board 33 and silica gel sealing water proof ring 34 is square.LED37 coupling on the position of light control volume 352 and the pcb board 33 is corresponding, and light control volume 352 forms the cavity volume that holds LED37 of protrusion downwards, passes bottom the LED37 in the cavity volume that silica gel sealing water proof ring 34 stretches into light control volume 352.The medial surface A of light control volume 352 is light entrance faces, and lateral surface B is a light-emitting face.The light entrance face of light control volume 352 and light-emitting face are the curved surface of non-regular shape; And be free form surface,, reach the purpose of control light trend through the refraction effect of light on two curved surfaces; Thereby obtaining required light distributes; Can carry out independent control to the light of diverse location on the curved surface, it is reflected to desired direction, like the direction of arrow C indication among Fig. 4.

During use, power supply is to module 3 power supplies, and the heat that LED37 work produces reaches heat transfer sheet 32 through pcb board 33, reaches radiating block 31 through heat transfer sheet 32 again and distributes fast, and support 2 and aluminium shell 1 also play the effect of heat radiation.

Claims

1. a LED street lamp is characterized in that comprising aluminium shell, tube connector, power supply and a plurality of module, and a plurality of modules are installed in parallel on the aluminium shell, and tube connector is connected with the aluminium shell back fixation; Aluminium shell comprises two arc fixtures, crossbeam and screening dust hood, and crossbeam and screening dust hood all are fixed between two arc fixtures, and hide the top that dust hood is in the aluminium shell back side, and the power supply that links to each other with module is installed in the arc fixture; Said module comprises radiating block, heat transfer sheet, pcb board, a plurality of LED, silica gel sealing water proof ring, lens and fixture from top to bottom successively, and pcb board is fixed on the radiating block, and heat transfer sheet is between radiating block and the pcb board, and a plurality of LED are fixed on the pcb board; The middle part of silica gel sealing water proof ring is provided with a square through hole that supplies all LED to pass; Lens, silica gel sealing water proof ring and pcb board are fixed on the radiating block through fixture, and radiating block is fixed on the aluminium shell.

2. a kind of LED street lamp according to claim 1 is characterized in that said lens are made up of installing plate and a plurality of light control volumes of being connected as a single entity with it; The position of light control volume is corresponding with the LED coupling on the pcb board, and the light control volume forms the cavity volume that holds LED of downward protrusion, and the LED bottom is in the cavity volume of light control volume; The medial surface of said light control volume is a light entrance face, and lateral surface is a light-emitting face, and light entrance face and light-emitting face are the curved surface of non-regular shape.

3. a kind of LED street lamp according to claim 1 is characterized in that said module is 2-7 that is arranged in parallel within on the aluminium shell.

4. a kind of LED street lamp according to claim 1 is characterized in that said fixture is a screw.