CN201885054U

CN201885054U - LED (light-emitting diode) streetlamp

Info

Publication number: CN201885054U
Application number: CN2010205297191U
Authority: CN
Inventors: 傅仰前
Original assignee: DONGGUAN CITY HEMIN OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: DONGGUAN CITY HEMIN OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2010-09-15
Filing date: 2010-09-15
Publication date: 2011-06-29
Anticipated expiration: 2020-09-15

Abstract

The utility model discloses an LED streetlamp, which includes a casing, wherein the casing is divided into an upper cover body and a lower cover body, the upper cover body and the lower cover body are closed to form the casing, a power supply module is arranged in the casing and is electrically connected with an LED module, and the LED module is fixedly arranged in the casing and is only provided with a single lens layer; the LED module further includes a back plate, an LED lamp panel, and a seal ring, wherein a seal space is formed between the back plate and the lens layer through the seal ring, and the LED lamp panel is fixed in the seal space; and the LED streetlamp realizes the light distribution and the water prevention functions through the single lens layer, the light decline of the LED streetlamp is reduced, and the lighting effect of the LED streetlamp is improved.

Description

The LED street lamp

Technical field

The utility model relates to a kind of light fixture, especially relates to a kind of LED street lamp.

Background technology

Street lamp has considerable status in the urban lighting system, all can set up a large amount of street lamps in each city.Traditional street lamp mainly adopts high-pressure mercury lamp, and not only light efficiency is low, and illuminating effect is also undesirable, can't adapt to efficient, energy-conservation life idea now.

In recent years, because the continuous development of LED lighting engineering, the LED lamp becomes trend, the LED lighting engineering is applied to street lamp and the LED street lamp made also emerges in an endless stream.What the LED street lamp was different with traditional high-pressure mercury lamp street lamp is, the efficient white light-emitting diodes that the light source of high-power LED street lamp adopts low-voltage DC supply, synthesized by GaN based power type blue-ray LED and yellow fluorescent powder, the distinct advantages of LED lamps such as therefore the LED street lamp not only has light efficiency height, energy-saving and environmental protection, the life-span is long, response speed is fast also has safe advantage owing to supply voltage is low.

But the LED street lamp also has the shortcoming of self, and the caloric value of low-power LED is very little, all be to use high-power LED when making street lamp, the caloric value of high-power LED is bigger, and has the problem that is not easy to dispel the heat, and the brightness meeting obviously reduces after the heating, influences illuminating effect.

The heat dispersion difference is a LED street lamp problem demanding prompt solution, and the radiating mode of LED street lamp mainly contains: Natural Heat Convection, install fan forced heat radiation, heat pipe and loop heat pipe heat radiation etc. additional.Install fan forced heat radiation mode system complex additional, reliability is low, and has increased the weight of street lamp because street lamp need be installed in eminence, the increase of weight can increase danger undoubtedly; Heat pipe and loop heat pipe radiating mode because cost is too high, are unfavorable for promoting on a large scale again.And street lamp have use at outdoor night, radiating surface is positioned at above the side and the restricted advantage that helps the natural convection air heat radiation such as less of build, therefore in general, the Natural Heat Convection mode is the reasonable radiating mode of LED street lamp.

And present LED street lamp is provided with the Water-resistant mirror layer in addition or the housing of LED street lamp is made Seal Design usually in order to obtain the excellent waterproof effect outside the light-distribution lens layer.The defective that the Water-resistant mirror layer is set is that light passes through the Water-resistant mirror layer and can produce light decay, the light decay of the reasonable lens of light transmission is about 10%, the not good material of light transmission also can produce more light decay, at this moment in order to improve the illuminating effect of LED street lamp, just must improve the brightness of LED road-light light-source, so not only waste electric energy, and owing to produced higher caloric value, the efficient of led light source is lower, forms vicious circle; And be sealing device with the housing global design of LED street lamp, then the heat that can make generation is difficult to heat radiation in seal cavity, also can influence the light efficiency of LED street lamp.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of light decay few LED street lamp, reduces the heat radiation burden of LED street lamp, the light efficiency and the service life of improving the LED street lamp.This LED street lamp has also alleviated weight when having improved heat dispersion, adapt to the specific (special) requirements of street lamp more.

In order to reach above-mentioned technical purpose, the utility model by the following technical solutions:

A kind of LED street lamp, comprise housing, wherein, described housing is divided into upper cover body, lower cover, described upper cover body and lower cover cover the back and form described housing, be provided with the power supply module in the described housing, described power supply module is electrically connected on the LED module, and described LED module is fixedly arranged in the described housing and only is provided with single lens jacket.

Above-mentioned LED street lamp, described LED module comprises backboard, LED lamp plate, sealing ring, lens jacket, forms seal cavity by sealing ring between described backboard and the lens jacket, described LED lamp plate is fixed in the sealing space.

Above-mentioned LED street lamp, the one side that described backboard is relative with seal cavity is provided with fin.This fin is preferable to be made by the good light-weight metal of heat conductivility, is preferably made by aluminum alloy materials.

Above-mentioned LED street lamp, described upper cover body lower edge is provided with groove, and the correspondence position of described lower cover upper limb also is provided with groove, and after upper and lower cover body covered, the groove of the groove of upper cover body lower edge and lower cover upper limb formed the advection passage.

Owing to adopted said structure, the utility model has the following advantages compared to existing technology:

1, the utility model LED street lamp owing to only be provided with single lens jacket, has reduced the light decay of led light source, has improved the light efficiency of LED street lamp.

2, the utility model LED street lamp, owing to will form seal cavity between lens jacket and the backboard, the LED lamp plate is fixed in the seal cavity, make lens jacket have luminous intensity distribution and water-proof function simultaneously concurrently, improved efficient, and housing can be designed as open space, the effect of raising heat loss through convection.

3, the utility model LED street lamp because backboard is provided with the fin that lightweight metal material is made, had not only guaranteed radiating effect but also its weight of not obvious increase of street lamp, had ensured the security of LED street lamp.

Description of drawings

Fig. 1 is the decomposing schematic representation of each parts of the utility model LED street lamp.

Fig. 2 is the amplification decomposing schematic representation of parts 3 among Fig. 1.

The drawing reference numeral explanation:

1 upper cover body, 2 lower cover 3LED modules, 4 power supply modules

5 fixed strips, 6 semi-circular recesses, 11 ventilation slots, 12 passages

13 lug bosses, 14 passages, 21 air vents, 22 passages

31 substrates, 32 lens jackets, 33 backboards, 34 sealing rings

35 luminescence units, 36 cross chamfering machine teeth, 321 lenslets, 331 fin

37 coiled hair machine screws, 38 metal joints, 39 double wired conductors

The specific embodiment

Below, reach embodiment in conjunction with the accompanying drawings and come the utility model is described further:

The embodiment of the utility model LED street lamp comprises housing, is fixed in LED module 3, power supply module 4 in the housing, and the LED module is electrically connected with the power supply module.This housing comprises upper cover body 1, lower cover 2 as shown in Figure 1, and upper cover body 1 covers the back with lower cover 2 and forms housing, and cambered surface is made on the surface of upper cover body 1 and lower cover 2, increases the surface area of housing, improves the radiating effect of LED street lamp.The lower edge of the left and right side of this upper cover body 1 be respectively equipped with one row semi-circular recesses 6, the upper limb place of the left and right side of this lower cover 2 also is respectively equipped with row's semi-circular recesses 6 accordingly, after upper cover body 1 and lower cover 2 cover, the corresponding semi-circular recesses that is provided with 6 forms the symmetrical passage of two rows, and the passage that two rows interconnect forms the advection passage of housing.The end face of this upper cover body 1 has the ventilation slot 11 that row's " U " shape is arranged, and also has several air vents 21 on the ground of this lower cover 2 accordingly, and ventilation slot 11 that interconnects and air vent 21 form the vertical convection passage of housing.The middle part of this upper cover body 1 left and right side has the side convection channel that the symmetrically arranged passage 14 of row's passage 14, two rows forms this housing respectively symmetrically.The surface of upper cover body 1 forms a lug boss 13 above passage 14, the end face of this lug boss 13 is an inclined-plane, this inclined-plane is provided with row's passage 12, the relevant position of the bottom surface of lower cover 2 is provided with several passages 22, and passage 12 that interconnects and passage 22 form secondary convection channel.

This LED module 3 as shown in Figure 2, comprise substrate 31, be fixed on several luminescence units 35 on the substrate 31, these substrate 31 preferable employing aluminium bases, substrate 31 is fixed on the backboard 33 by coiled hair machine screws 37 and installing hole, be provided with sealing ring 34, lens jacket 32 on the substrate 31 successively, sealing ring 34 and lens jacket 32 are fixed on the backboard 33 by cross chamfering machine tooth 36 and installing hole, lens jacket 32, sealing ring 34 and backboard 33 closely contact, make its inner seal cavity that forms, substrate 31 is in the sealing space.Lens jacket 32 is provided with several lenslets 321, and the position of each lenslet 321 is corresponding to a luminescence unit 35, and both axis are on same straight line.Backboard 33 is provided with several fin 331 with respect to the one side of substrate 31, and this fin 331 is preferable to be made by the light-weight metal with good heat conductive performance, is preferably aluminium alloy.This fin 331 is preferable one-body molded with backboard 33, and these fin 331 preferable inner surfaces with upper cover body 1 closely contact, and the better inner surface that is directly fixed on upper cover body 1 directly contacts housing with thermal source, improve radiating effect.Substrate 31 is connected with double wired conductor 39 by metal joint 38, and this joint 38 is preferably the waterproof metal joint.Double wired conductor 39 is connected with the power supply module 4 that is fixed in lower cover 2 inner surfaces, and backboard 33 is fixed in fixed strip 5 by screw and installing hole, and fixed strip 5 is fixed in the inner surface of lower cover 2 by screw and installing hole.

Owing to form seal cavity between lens jacket 32 and the backboard 33, substrate 31 is located in the sealing space, make the water resistance and the sealing property of LED lamp plate all get a promotion, lens jacket 32 is provided with several lenslets 321 corresponding to luminescence unit 35, also can finish the luminous intensity distribution of led light source well, one deck lens just can be finished the function of waterproof and luminous intensity distribution, have reduced the lens jacket that led light source passes through, reduce light decay, improved light efficiency.And, because the Seal Design of LED module itself makes housing can be designed to style of opening, improved the heat loss through convection effect of LED street lamp, under the prerequisite of the mechanical property that does not influence housing itself, can be provided with more to discharge orifice, to reach heat loss through convection effect better.

Claims

1. LED street lamp, comprise housing, it is characterized in that: described housing is divided into upper cover body, lower cover, described upper cover body and lower cover cover the back and form described housing, be provided with the power supply module in the described housing, described power supply module is electrically connected on the LED module, and described LED module is fixedly arranged in the described housing and only is provided with single lens jacket.

2. LED street lamp according to claim 1 is characterized in that: described LED module also comprises backboard, LED lamp plate, sealing ring, forms seal cavity by sealing ring between described backboard and the lens jacket, and described LED lamp plate is fixed in the sealing space.

3. LED street lamp according to claim 2 is characterized in that: the one side that described backboard is relative with seal cavity is provided with fin.

4. LED street lamp according to claim 3 is characterized in that: described fin is that aluminium alloy is made.

5. LED street lamp according to claim 4 is characterized in that: described LED lamp plate comprises substrate and the LED luminescence unit that is fixed on the substrate, is provided with a lenslet corresponding to each LED luminescence unit on the described lens jacket.

6. LED street lamp according to claim 5, it is characterized in that: described upper cover body lower edge is provided with groove, the correspondence position of described lower cover upper limb also is provided with groove, and after upper and lower cover body covered, the groove of the groove of upper cover body lower edge and lower cover upper limb formed the advection passage.

7. LED street lamp according to claim 6 is characterized in that: described upper cover body end face is provided with ventilation slot, and described lower cover bottom surface is provided with air vent accordingly, and described ventilation slot and air vent form the vertical convection passage.

8. according to any described LED street lamp among the claim 3-7, it is characterized in that: described fin closely contacts with the inner surface of described upper cover body.