CN103672647A

CN103672647A - LED street lamp

Info

Publication number: CN103672647A
Application number: CN201310622013.8A
Authority: CN
Inventors: 林军木; 谭国益; 周仁礼
Original assignee: SICHUAN GRAND TECHNOLOGY Co Ltd
Current assignee: SICHUAN GRAND TECHNOLOGY Co Ltd
Priority date: 2013-11-30
Filing date: 2013-11-30
Publication date: 2014-03-26

Abstract

The invention discloses an LED street lamp comprising a lamp base (4), cooling fins (3), a driving power source (5), a rear cover plate (1) and LED light-emitting bodies (2). The LED street lamp is characterized in that the LED street lamp further comprises a terminal box (6); the cooling fins (3) are fixedly connected to one end of the lamp base (4); the LED light-emitting bodies (2) are fixedly connected to the cooling fins (3); the driving power source (5) and the terminal box (6) are fixedly connected to the other end of the lamp base (4); the rear cover plate (1) is a smooth arc-shaped metal shell and is fixedly connected to the lamp base (4); a cavity with a jaggy side is formed between the rear cover plate (1) and the lamp base (4); the driving power source (5) and the terminal box (6) are positioned in the cavity. The driving power source is affected slightly by heat emission of the LED light-emitting bodies and is good in effect of cooling its own heat, and influences of external environments on cable joints of the LED street lamp and street lamp power grids are avoided.

Description

A kind of LED street lamp

Technical field

The present invention relates to field of illuminating device, particularly relate to a kind of LED street lamp.

Background technology

LED light source is through the technique improvement of decades, high with its luminous efficiency, power consumption is few, long service life, security reliability is strong and be conducive to the advantages such as environmental protection, becomes modern lamplit main product.Existing LED light fixture is also applying to street lamp field gradually, because single led illuminator is generally spot light and lighting angle is little, for obtaining large-scale irradiation area, the illuminator of existing LED street lamp mostly is LED luminous body group, and LED illuminator occupies sizable ratio between investments in whole LED street lamp.

LED illuminator has more than 5 times service life compared to supporting with it driving power, this just makes LED illuminator need to change more than 5 times driving power in its whole life cycle, replacing for ease of driving power, existing driving power generally adopts 2pin contact pin to be connected with street lamp electrical network, and due to the outdoor work post environment of LED street lamp, cause in this environment that is connected to rainwater, moisture easily short circuit, affect LED street lamp normal work, cause LED road lamp frame band point, even affect whole street lamp electrical network and normally work.

Summary of the invention

For the above-mentioned existing outdoor work post environment due to LED street lamp, cause junction easily short circuit in the environment of rainwater, moisture of driving power and street lamp electrical network, affect LED street lamp normal work, cause LED road lamp frame band point, even affect the problem of the normal work of whole street lamp electrical network, the invention provides a kind of LED street lamp.

For addressing the above problem, a kind of LED street lamp provided by the invention solves problem by following technical essential: a kind of LED street lamp, comprise lamp socket, radiating fin, driving power, back shroud and LED illuminator, also comprise terminal box, described radiating fin is fixedly connected on one end of lamp socket, LED illuminator is fixedly connected on radiating fin, described driving power and terminal box are fixedly connected on the other end of lamp socket, described back shroud is level and smooth arc metal thin shell, back shroud is fixedly connected on lamp socket, and between back shroud and lamp socket, form a side cavity jaggy, described driving power and terminal box are all positioned at cavity.

During this arranges, by LED street lamp in use the LED illuminator of quantity of heat production maximum be arranged on radiating fin, and radiating fin and driving power lay respectively at one end of lamp socket, thus the heat having produced while having avoided the work of LED illuminator exerts an influence to driving power; Back shroud is arranged to the metal thin shell of level and smooth arc, to avoid LED street lamp in use to pile up dust on back shroud, is conducive to the heat radiation of heat in cavity between itself and lamp socket; And the terminal box arranging is for encapsulating the cable connector of driving power and street lamp electrical network, with after avoiding this joint to be exposed to meeting wet short circuit under natural environment or corroded by corrosive medium, there is poor flow.

Further technical scheme is:

Described terminal box is the groove shape that both ends of the surface are respectively arranged with a through wires hole, on the internal face of each through wires hole, be also provided with one deck elastic rubber layer, on the openend of terminal box, be also provided with the flange flushing with openend, on described flange, be provided with screw hole, flange becomes screw to be connected with lamp socket.

This structural elements is simple, the through wires hole arranging is respectively used to street lamp electrical network the end of a thread and driving power input line is introduced terminal box, the joint of street lamp electrical network the end of a thread and driving power input line is positioned at the groove shape structure of terminal box, the elastic rubber layer arranging is for realizing the sealing of each through wires hole respectively and between above-mentioned the end of a thread or input line, adopts screw to connect terminal box is fixed on and on lamp socket, is convenient to realize after wiring completes connector lug and extraneous isolation.

The effect being isolated from the outside for further realizing connector lug, is also provided with sealing gasket between described flange and lamp socket.

Radiating effect for enhance heat fin, described radiating fin comprises fin and fin fixed block, described fin and fin fixed block are hollow structure, and fin and fin fixed block hollow space separately communicate and form an airtight chamber, and described LED illuminator is fixedly connected on fin fixed block; In described airtight chamber, be also provided with demineralized water.

For guaranteeing the be heated securities of radiating fin after a large amount of evaporations of demineralized water in described airtight chamber, on the chamber wall in described airtight chamber, be also provided with spring pressure relief mechanism.

The breach of the cavity forming between described back shroud and lamp socket is positioned at back shroud near a side of radiating fin, and back shroud cover part radiating fin.When the present invention installs, the one end that is provided with back shroud to be installed upward, this setting is beneficial to the heat radiation of the cavity forming between back shroud and lamp socket and avoids rainwater to enter cavity, is conducive to the service life of driving power.

The present invention has following beneficial effect:

1, the present invention is simple in structure, by LED street lamp in use the LED illuminator of quantity of heat production maximum be arranged on radiating fin, and radiating fin and driving power lay respectively at one end of lamp socket, thereby the heat having produced while having avoided the work of LED illuminator exerts an influence to driving power.

2, back shroud is arranged to the metal thin shell of level and smooth arc, to avoid LED street lamp in use to pile up dust on back shroud, is conducive to the heat radiation of heat in cavity between itself and lamp socket.

3 and the terminal box that arranges for encapsulating the cable connector of driving power and street lamp electrical network, with after avoiding this joint to be exposed to meeting wet short circuit under natural environment or corroded by corrosive medium, there is poor flow.

Accompanying drawing explanation

Fig. 1 is the structural representation of a specific embodiment of a kind of LED street lamp of the present invention;

Fig. 2 is the partial enlarged drawing of the part of A shown in Fig. 1;

Fig. 3 is the cutaway view of a specific embodiment of radiating fin of a kind of LED street lamp of the present invention.

Figure acceptance of the bid note is respectively: 1, rear light cover, 2, LED illuminator, 3, radiating fin, 31, fin, 32

, fin fixed block, 4, lamp socket, 5, driving power, 6, terminal box, 7, sealing gasket, 8, flange.

The specific embodiment

Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:

Embodiment 1:

As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of LED street lamp, comprise lamp socket 4, radiating fin 3, driving power 5, back shroud 1 and LED illuminator 2, it is characterized in that, also comprise terminal box 6, described radiating fin 3 is fixedly connected on one end of lamp socket 4, LED illuminator 2 is fixedly connected on radiating fin 3, described driving power 5 and terminal box 6 are fixedly connected on the other end of lamp socket 4, described back shroud 1 is level and smooth arc metal thin shell, back shroud 1 is fixedly connected on lamp socket 4, and between back shroud 1 and lamp socket 4, form a side cavity jaggy, described driving power 5 and terminal box 6 are all positioned at cavity.

During this arranges, by LED street lamp in use the LED illuminator 2 of quantity of heat production maximum be arranged on radiating fin 3, and radiating fin 3 lays respectively at one end of lamp socket 4 with driving power 5, thereby the heat having produced while having avoided 2 work of LED illuminator exerts an influence to driving power 5; Back shroud 1 is arranged to the metal thin shell of level and smooth arc, to avoid LED street lamp in use to pile up dust on back shroud 1, is conducive to the heat radiation of heat in cavity between itself and lamp socket 4; And the terminal box 6 arranging is for encapsulating the cable connector of driving power 5 and street lamp electrical network, to avoid this joint to be exposed to, under natural environment, meets wet short circuit or suffer occurring poor flow after corrosive medium corrosion.

Embodiment 2:

The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, Figure 2 and Figure 3, described terminal box 6 is the groove shape that both ends of the surface are respectively arranged with a through wires hole, on the internal face of each through wires hole, be also provided with one deck elastic rubber layer, on the openend of terminal box 6, be also provided with the flange 8 flushing with openend, on described flange 8, be provided with screw hole, 4 one-tenth screws of flange 8 and lamp socket are connected.

This structural elements is simple, the through wires hole arranging is respectively used to street lamp electrical network the end of a thread and driving power 5 input lines are introduced terminal box 6, the joint of street lamp electrical network the end of a thread and driving power 5 input lines is positioned at the groove shape structure of terminal box 6, the elastic rubber layer arranging is for realizing the sealing of each through wires hole respectively and between above-mentioned the end of a thread or input line, adopts screw to connect terminal box 6 is fixed on and on lamp socket 4, is convenient to realize after wiring completes connector lug and extraneous isolation.

The effect being isolated from the outside for further realizing connector lug, is also provided with sealing gasket 7 between described flange 8 and lamp socket 4.

Embodiment 3:

The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, Figure 2 and Figure 3, radiating effect for enhance heat fin 3, described radiating fin 3 comprises fin 31 and fin fixed block 32, described fin 31 and fin fixed block 32 are hollow structure, and fin 31 and fin fixed block 32 hollow space separately communicate and form an airtight chamber, and described LED illuminator 2 is fixedly connected on fin fixed block 32; In described airtight chamber, be also provided with demineralized water.

For guaranteeing the be heated securities of radiating fin 3 after a large amount of evaporations of demineralized water in described airtight chamber, on the chamber wall in described airtight chamber, be also provided with spring pressure relief mechanism.

Embodiment 4:

The present embodiment is further qualified on the basis of above embodiment, and as shown in Figure 1, Figure 2 and Figure 3, the breach of the cavity forming between described back shroud 1 and lamp socket 4 is positioned at back shroud 1 near a side of radiating fin 3, and back shroud 1 cover part radiating fin 3.When the present invention installs, the one end that is provided with back shroud 1 to be installed upward, this setting is beneficial to the heat radiation of the cavity forming between back shroud 1 and lamp socket 4 and avoids rainwater to enter cavity, is conducive to the service life of driving power 5.

Claims

1. a LED street lamp, comprise lamp socket (4), radiating fin (3), driving power (5), back shroud (1) and LED illuminator (2), it is characterized in that, also comprise terminal box (6), described radiating fin (3) is fixedly connected on one end of lamp socket (4), LED illuminator (2) is fixedly connected on radiating fin (3), described driving power (5) and terminal box (6) are fixedly connected on the other end of lamp socket (4), described back shroud (1) is level and smooth arc metal thin shell, back shroud (1) is fixedly connected on lamp socket (4), and between back shroud (1) and lamp socket (4), form a side cavity jaggy, described driving power (5) and terminal box (6) are all positioned at cavity.

2. a kind of LED street lamp according to claim 1, it is characterized in that, described terminal box (6) is the groove shape that both ends of the surface are respectively arranged with a through wires hole, on the internal face of each through wires hole, be also provided with one deck elastic rubber layer, on the openend of terminal box (6), be also provided with the flange (8) flushing with openend, described flange is provided with screw hole on (8), and flange (8) becomes screw to be connected with lamp socket (4).

3. a kind of LED street lamp according to claim 2, is characterized in that, between described flange (8) and lamp socket (4), is also provided with sealing gasket (7).

4. a kind of LED street lamp according to claim 1, it is characterized in that, described radiating fin (3) comprises fin (31) and fin fixed block (32), described fin (31) and fin fixed block (32) are hollow structure, and fin (31) and fin fixed block (32) hollow space separately communicate and form an airtight chamber, and described LED illuminator (2) is fixedly connected on fin fixed block (32).

5. a kind of LED street lamp according to claim 4, is characterized in that, in described airtight chamber, is also provided with demineralized water.

6. a kind of LED street lamp according to claim 4, is characterized in that, on the chamber wall in described airtight chamber, is also provided with spring pressure relief mechanism.

7. according to a kind of LED street lamp described in any one in claim 1 to 6, it is characterized in that, the breach of the cavity forming between described back shroud (1) and lamp socket (4) is positioned at back shroud (1) near a side of radiating fin (3), and back shroud (1) cover part radiating fin (3).