CN202392594U

CN202392594U - Light emitting diode (LED) street lamp

Info

Publication number: CN202392594U
Application number: CN2011204645356U
Authority: CN
Inventors: 赵伟明
Original assignee: GUANHONG LIGHTING CO Ltd
Current assignee: GUANHONG LIGHTING CO Ltd
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-08-22
Anticipated expiration: 2021-11-22

Abstract

The utility model discloses a light emitting diode (LED) street lamp, which comprises an upper cover body and a lower cover body, wherein the upper cover body and the lower cover body are covered to form a shell; a power module is arranged in the shell; the power module is electrically connected with an LED module; the LED module is covered between the upper cover body and the lower cover body; the LED module is provided with only one single lens layer; a screen or a ventilated transparent film is arranged on the inner surface of the upper cover body; and a screen or a ventilated transparent film is arranged on the inner surface of the lower cover body.

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.

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 usually in addition or the housing of LED street lamp is made Seal Design 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, and the light decay of the reasonable lens of light transmission is about 10%, and 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, the heat that then can make generation is difficult to heat radiation in seal cavity, also can influence the light efficiency of LED street lamp.

Simultaneously, present LED street lamp also has little winged insect etc. and from passage, flies into fin in long-term the use, influences radiating effect and brightness of illumination.

The utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of light decay few LED street lamp, can prevent that not only little winged insect from flying into fin from passage, can also reduce 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 adopts following technical scheme:

A kind of LED street lamp comprises upper cover body, lower cover, and said upper cover body and lower cover cover the back and form housing; Be provided with the power supply module in the said housing; Said power supply module is electrically connected on the LED module, and said LED module cover is buckled between upper cover body, the lower cover, and said LED module only is provided with single lens jacket; Said upper cover body inner surface is provided with ventilative transparent membrane, and said lower cover inner surface is provided with guard or ventilative transparent membrane.

Said LED module also comprises backboard, LED lamp plate, sealing ring, forms seal cavity through sealing ring between said backboard and the lens jacket, and said LED lamp plate is fixed in the sealing space.

The one side that said backboard and seal cavity are relative is provided with fin.

Said LED lamp plate comprises substrate and is fixed in the LED luminescence unit on the substrate, is provided with a lenslet corresponding to each LED luminescence unit on the said lens jacket.

Said upper cover body lower edge is provided with groove, and the correspondence position of said 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.

Said upper cover body end face is provided with ventilation slot, and said lower cover bottom surface is provided with air vent accordingly, and said ventilation slot and air vent form the vertical convection passage.

Said fin closely contacts with the breathable films of the inner surface of said upper cover body.

Owing to adopted said structure, the utility model is compared prior art and is had the following advantages:

1, the structural design of transparent membrane can prevent that under not influencing the heat radiation and the situation of illumination little winged insect etc. from flying in the upper cover body from passage.

2, owing to only be provided with single lens jacket, reduce the light decay of led light source, improved the light efficiency of LED street lamp.

3, because with forming seal cavity between lens jacket and the backboard, the LED lamp plate is fixed in the seal cavity, makes lens jacket have luminous intensity distribution and water-proof function simultaneously concurrently, has improved efficient, and housing can be designed as open space, the effect of raising heat loss through convection.

4, because backboard is provided with the fin that lightweight metal material is processed, not only guarantee radiating effect but also its weight of not obvious increase of street lamp, 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, come the utility model is done further explanation in conjunction with accompanying drawing and embodiment:

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 is as shown in Figure 1, comprises upper cover body 1, lower cover 2, and upper cover body 1 covers the back with lower cover 2 and forms housing, and cambered surface is processed 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 covers with lower cover 2; 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, the vertical convection passage of ventilation slot 11 that interconnects and air vent 21 formation housings.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 the passage 12 that interconnects forms secondary convection channel with passage 22.

Said upper cover body 1 inner surface is provided with ventilative transparent membrane, and said lower cover 2 inner surfaces are provided with guard or ventilative transparent membrane, can prevent that through transparent membrane little winged insect etc. from flying in the upper cover body 1 from passage under not influencing the heat radiation and the situation of illumination.

This LED module 3 is 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 through coiled hair machine screws 37 and installing hole, is 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 through cross chamfering machine tooth 36 and installing hole; Lens jacket 32, sealing ring 34 and backboard 33 closely contact, and make its inner seal cavity that forms, and 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 processed 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 the breathable films of the preferable inner surface with upper cover body 1 of this fin 331 closely contacts the raising radiating effect.Substrate 31 is connected with double wired conductor 39 through 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 through screw and installing hole, and fixed strip 5 is fixed in the inner surface of lower cover 2 through screw and installing hole.

Because form seal cavity between lens jacket 32 and the backboard 33, substrate 31 is located in the sealing space, makes the water resistance of LED lamp plate and sealing property all get a promotion; Lens jacket 32 is provided with several lenslets 321 corresponding to luminescence unit 35; Also can accomplish the luminous intensity distribution of led light source well, one deck lens just can be accomplished 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. a LED street lamp is characterized in that: comprise upper cover body, lower cover, form housing after said upper cover body and lower cover cover; Be provided with the power supply module in the said housing; Said power supply module is electrically connected on the LED module, and said LED module cover is buckled between upper cover body, the lower cover, and said LED module only is provided with single lens jacket; Said upper cover body inner surface is provided with guard or ventilative transparent membrane, and said lower cover inner surface is provided with guard or ventilative transparent membrane.

2. LED street lamp according to claim 1 is characterized in that: said LED module also comprises backboard, LED lamp plate, sealing ring, forms seal cavity through sealing ring between said backboard and the lens jacket, and said 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 said backboard and seal cavity are relative is provided with fin.

4. LED street lamp according to claim 3 is characterized in that: said LED lamp plate comprises substrate and is fixed in the LED luminescence unit on the substrate, is provided with a lenslet corresponding to each LED luminescence unit on the said lens jacket.

5. LED street lamp according to claim 4; It is characterized in that: said upper cover body lower edge is provided with groove; The correspondence position of said 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.

6. LED street lamp according to claim 5 is characterized in that: said upper cover body end face is provided with ventilation slot, and said lower cover bottom surface is provided with air vent accordingly, and said ventilation slot and air vent form the vertical convection passage.

7. according to any described LED street lamp among the claim 1-6, it is characterized in that: said fin closely contacts with the breathable films of the inner surface of said upper cover body.