CN104165309A - LED road lamp good in heat dissipation effect - Google Patents

LED road lamp good in heat dissipation effect Download PDF

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Publication number
CN104165309A
CN104165309A CN201410439514.7A CN201410439514A CN104165309A CN 104165309 A CN104165309 A CN 104165309A CN 201410439514 A CN201410439514 A CN 201410439514A CN 104165309 A CN104165309 A CN 104165309A
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CN
China
Prior art keywords
heat dissipation
radiator
housing
led
street lamp
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Pending
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CN201410439514.7A
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Chinese (zh)
Inventor
颜建文
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颜建文
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Priority to CN201410439514.7A priority Critical patent/CN104165309A/en
Publication of CN104165309A publication Critical patent/CN104165309A/en
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Abstract

The invention discloses an LED road lamp good in heat dissipation effect. The road lamp comprises an installing support, a lamp pole head, a lower end shell, multiple heat dissipation devices, an upper end shell, LED light source structures and light-transmitting covers. The connecting position of the lamp pole head and the lower end of the lower end shell is provided with a first heat dissipation gap, multiple first heat dissipation fins extend out of the middle of the back face of each heat dissipation device, second heat dissipation fins extend outwards in an inclined mode from the two sides of the back face of each heat dissipation device, and the second heat dissipation fins are distributed in a stepped structure, and the edges are inclined downwards. According to the LED road lamp, through ingeniously arranging the heat dissipation gaps and the heat dissipation fins, the ideal heat dissipation effect is achieved, and meanwhile because the second heat dissipation fins are of the stepped structure, water drainage and dust removing are facilitated. According to the LED road lamp, the ideal heat dissipation effect is achieved through the structural design, and the LED road lamp is simple in structure, long in service life, waterproof, dustproof, good in lighting effect and worthy of wide application and popularization in road lighting.

Description

A kind of LED street lamp of good heat dissipation effect
Technical field
The present invention relates to road lighting technology, particularly a kind of LED street lamp of good heat dissipation effect.
Background technology
1879, Shanghai 16 Pu harbours lighted first lamp of China, and from then on along with scientific and technological progress, street lamp becomes the requisite communal facility in each city already.
Along with LED technology is constantly brought forth new ideas, LED will replace conventional light source and be popularized, to alleviate the increasingly serious energy crisis in the whole world and to improve the mankind's living environment.Traditional street lamp mostly is sodium vapor lamp and electricity-saving lamp, is prone to mercury pollution, and the environmental protection of high-power LED street lamp is pollution-free.Along with the reduction of maturation and the manufacturing cost of heavy-power LED product, LED product can be applied in street lamp product widely.
Compare with conventional high-tension sodium vapor lamp street lamp, LED street lamp not only has the feature that colourity is good, non-maintaining, the life-span is long.But in general, street lamp is positioned at outdoor, affected by the factors such as dust, environment temperature, make heat radiation become the key factor that affects the LED street lamp life-span.As everyone knows, the circulation way of heat mainly contains three kinds of conduction, radiation, convection current, and existing LED street lamp is snakehead lamp mostly, and its radiating mode is mainly heat loss through radiation, and radiating effect is not good.When long-time use, affected by the external environments such as dust, radiating effect can be worse and worse, thus the heat that LED work is produced constantly build up, high temperature causes its life-span to be fallen sharply.
Therefore, how realizing a kind of simple in structure, good heat dissipation, life-span length, water proof and dust proof, the desirable LED street lamp of light efficiency is technical problem urgently to be resolved hurrily in the industry.
Summary of the invention
Main purpose of the present invention is to provide a kind of LED street lamp of good heat dissipation effect, is intended to realize a kind of simple in structure, good heat dissipation, life-span length, water proof and dust proof, the desirable LED street lamp of light efficiency.
The present invention proposes a kind of LED street lamp of good heat dissipation effect, comprises mounting bracket, is located at the lamp stand head of mounting bracket end, along mounting bracket, is connected with from the bottom to top lower end housing, some radiators, upper end housing in turn.Also comprise the LED light source structure of being close on radiator front, be covered on the structural diffuser of LED light source, LED light source structure comprises the circuit board of being close on radiator front, evenly be laid in the LED lamp pearl on circuit board, lamp stand head is connected by screw with lower end housing lower end, lamp stand head and junction, lower end housing lower end are provided with the first heat radiation space, the first heat radiation space passes straight through to radiator, lower end housing front is provided with some heat radiation circular holes and some heat radiation cylindrical voids, between some radiators, be provided with the second heat radiation space, some the first radiating fins are extended in middle, the radiator back side, both sides, the radiator back side tilt to extend outward the second radiating fin, the second radiating fin is stair structure and distributes, the second radiating fin edge is towards having a down dip.
Preferably, the drive unit being electrically connected to LED light source structure is placed in lower end housing.
Preferably, mounting bracket, lamp stand head, radiator are made by heat-conducting metal, and heat-conducting metal is selected iron, aluminium or copper.
Preferably, lower end housing and upper end housing are made by heat-conducting metal or plastics.
Preferably, diffuser is connected by screw mode with radiator and is connected.
Preferably, the junction of diffuser side and radiator is provided with silica gel ring.
Preferably, diffuser is made by glass or plastics.
The present invention proposes a kind of LED street lamp of good heat dissipation effect, comprise mounting bracket, be located at the lamp stand head of mounting bracket end, lower end housing, some radiators, upper end housing, also comprise the LED light source structure be close on radiator front, be covered on the structural diffuser of LED light source.Lamp stand head is connected by screw with lower end housing lower end, lamp stand head and junction, lower end housing lower end are provided with the first heat radiation space, the first heat radiation space passes straight through to radiator, be conducive to air circulates in lower end housing, carry out heat exchange, arrive desirable radiating effect, lower end housing front is provided with some heat radiation circular holes and some heat radiation cylindrical voids.Between some radiators, be provided with the second heat radiation space, some the first radiating fins are extended in middle, the radiator back side, both sides, the radiator back side tilt to extend outward the second radiating fin, and the second radiating fin is stair structure and distributes, and the second radiating fin edge is towards having a down dip.LED street lamp of the present invention, by the combination of the through hole on the first heat radiation space and lower end housing, air is horizontal, vertical accelerates rate of heat exchange respectively to mutual circulation, reaches good radiating effect.Whole radiator adopts heat-conducting metal to make, and the first radiating fin and the second radiating fin strengthened the contact area with air greatly, and heat conduction is good, rapid heat dissipation, guarantees the long-term normal work of LED light source structure, extends the service life of LED light source assembly.The stair structure of the second radiating fin, is conducive to draining, dust discharge simultaneously, and moisture dust is difficult for accumulating on radiator, effectively protects its service life.The second radiating fin edge is towards the design that has a down dip, is further beneficial to rainwater and drains and do not gather, be not subject to ectocine and reflux.The silica gel ring that diffuser and radiator junction are provided with, further improves the IP value of LED street lamp, and the Lens Design of diffuser, makes LED light more even, and more comprehensively, illumination effect is better for lighting angle.The structural design of LED street lamp of the present invention utilization own reaches desirable radiating effect, and simple in structure, life-span length, water proof and dust proof, light efficiency are good, should be widely promoted and are applied in road lighting.
Accompanying drawing explanation
Fig. 1 is an embodiment Facad structure schematic diagram of the LED street lamp of a kind of good heat dissipation effect of the present invention;
Fig. 2 is an embodiment structure schematic diagram of the LED street lamp of a kind of good heat dissipation effect of the present invention;
Fig. 3 is lamp stand head side-looking structural representation in the embodiment of LED street lamp of a kind of good heat dissipation effect of the present invention;
Fig. 4 is radiator backsight structural representation in the embodiment of LED street lamp of a kind of good heat dissipation effect of the present invention;
Fig. 5 is heat sink side TV structure schematic diagram in the embodiment of LED street lamp of a kind of good heat dissipation effect of the present invention.
 
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to figs. 1 through Fig. 5, one embodiment of the LED street lamp of a kind of good heat dissipation effect of the present invention is proposed, comprise mounting bracket, be located at the lamp stand head 100 of mounting bracket end, along mounting bracket, be connected with from the bottom to top lower end housing 200, some radiators 300, upper end housing 400 in turn.Also comprise the LED light source structure 500 of being close on radiator 300 fronts, be covered on the diffuser 600 in LED light source structure 500, LED light source structure 500 comprises the circuit board 501 of being close on radiator 300 fronts, evenly be laid in the LED lamp pearl 502 on circuit board 501, lamp stand head 100 is connected by screw with lower end housing 200 lower ends, lamp stand head 100 is provided with the first heat radiation space 101 with lower end housing 200 junctions, lower end, the first heat radiation space 101 passes straight through to radiator 300, lower end housing 200 fronts are provided with some heat radiation circular holes 201 and some heat radiation cylindrical voids 202, between some radiators 300, be provided with the second heat radiation space 301, some the first radiating fins 302 are extended in radiator 300 middles, the back side, radiator 300 both sides, the back side tilt to extend outward the second radiating fin 303, the second radiating fin 303 is stair structure and distributes, the second radiating fin 303 edges are towards having a down dip.
Mounting bracket, be located at mounting bracket end and the lamp stand head 100 being connected by screw with mounting bracket, be fixed on the radiator 300 on mounting bracket, by heat-conducting metal, make, mounting bracket plays the effect fixing, heat conduction of supporting here, lamp stand head 100 and radiator 300 are become one structure, and good heat dissipation, heat conduction are fast.Simultaneously, lamp stand head 100 is connected by screw with lower end housing 200 lower ends, lamp stand head 100 is provided with the first heat radiation space 101 with lower end housing 200 junctions, lower end, the first heat radiation space 101 passes straight through to radiator 300, into a single integrated structure between lamp stand head 100 and radiator 300, with the first heat radiation space 101, further improve radiating effect again.The drive unit being electrically connected to LED light source structure 500 is placed in lower end housing 200, and the first heat radiation space 101 makes the interior horizontal circulation of air of lower end housing 200, by heat exchange, and the heat producing while taking away rapidly drive unit work.Heat dishoarding, has effectively protected the long-term normal work of drive unit and the service life of prolongation drive unit.Lower end housing 200 fronts are provided with some heat radiation circular holes 201 and some heat radiation cylindrical voids 202, make the not only laterally circulation of air-flow in lower end housing 200, and longitudinally also circulation, further accelerates rate of heat exchange.The perfect adaptation of the first heat radiation space 101 and heat radiation circular hole 201 and heat radiation cylindrical void 202, is guaranteeing on the basis of waterproof, allows in whole lower end housing 200 all ventilatedly, and radiating rate is exceedingly fast, and radiating effect is desirable, and overall structure is simple.
Compare with conventional high-tension sodium vapor lamp street lamp, LED street lamp not only has the feature that colourity is good, non-maintaining, the life-span is long.But in general, street lamp is positioned at outdoor, affected by the factors such as dust, environment temperature, make heat radiation become the key factor that affects the LED street lamp life-span.What have additionally adds the aids such as fan in order to reduce LED operating temperature, although radiating effect is good in a short time, but extra adding set not only increases production cost, be subject to external environment influence the device lifetime of adding, can not be durable in use, if change, very trouble, also wants wasting manpower and material resources.In line with not increasing production cost, durable in use, non-maintaining use concept, LED street lamp of the present invention, by the radiating effect that self designs to reach desirable.
LED light source structure 500 comprises the circuit board 501 be close on radiator 300 fronts, is evenly laid in the LED lamp pearl 502 on circuit board 501.Radiator 300 is made by heat-conducting metal, between some radiators 300, be provided with the second heat radiation space 301, the heat that LED light source structure 500 produces so can not accumulate on monoblock radiator 300 once, by the second heat radiation space 301, make heat effectively be dispersed in extraneous air, utilize the natural law of Air Flow to take away heat simultaneously, promote radiating effect.Some the first radiating fins 302 are extended in radiator 300 middles, the back side, radiator 300 both sides, the back side tilt to extend outward the second radiating fin 303, whole radiator 300 back sides are all covered with radiating fin, have greatly increased radiating surface and extraneous air contact area.The heat that LED light source structure 500 produces is delivered to rapidly on each radiating fin and is further dispersed in extraneous air again, thereby reach desirable radiating effect, effectively guarantee the long-term normal work of LED light source structure 500, extended the service life of LED light source structure 500.
LED street lamp of the present invention, the second heat radiation space 301 between the first heat radiation space 101 being provided with by lamp stand head 100 and lower end housing 200 junctions, lower end, the some heat radiation circular holes 201 on lower end housing 200 fronts and heat radiation cylindrical void 202, radiator 300, radiator 300 back side extended some the first radiating fins 302 in place and the second radiating fins 303, all the changes in structural design, do not need additionally to add heat abstractor, just can reach desirable radiating effect, guarantee the long-term normal work of LED light source assembly, extend the service life of LED light source assembly.Simple in structure like this, production cost is low, produce that linkage editor is simplified, maintenance cost is low, and radiating effect can not change to some extent because of external environment impact.Existing LED street lamp is snakehead lamp mostly, and its radiating mode is mainly heat loss through radiation, and radiating effect is not good.When long-time use, affected by the external environments such as dust, dirt accumulation affects its heat loss through radiation effect, radiating effect can be worse and worse, thereby the heat that LED work is produced constantly build up, high temperature causes the life-span of LED street lamp to be fallen sharply.LED street lamp of the present invention utilizes cross-ventilated mode to dispel the heat, and cross-ventilation not only dust is difficult for gathering, and waterproof effect is also fine.The second radiating fin 303 on radiator 300 both sides, the back side is stair structure and distributes, rainwater flows outward and takes away dust along step distribution arrangement, the second radiating fin 303 edges are towards having a down dip, and rainwater can not be back in radiator 300, has indirectly improved the IP value of product.
Lower end housing 200 and upper end housing 400 are made by heat-conducting metal or plastics.
Diffuser 600 is connected by screw mode with radiator 300 and is connected, and the junction of diffuser 600 sides and radiator 300 is provided with silica gel ring 601, and silica gel ring 601 plays the effect of water proof and dust proof effectively, has greatly improved the IP value of LED street lamp of the present invention.Silica gel ring 601 both can make diffuser 600 closely be connected with radiator 300, also can prevent that screw from damaging diffuser 600 by pressure, prevented that in use procedure, screw loosening causes destroying LED light source structure 500 into water simultaneously.Diffuser 600 is made by glass or plastics, the Lens Design of diffuser 600, changed LED light source and caused with point light source light-emitting the phenomenon that light is inhomogeneous, light-emitting area is little, when irradiating out, light reflects, thereby make light more even, more comprehensively, illumination effect is better for lighting angle, and illumination more meets the specification requirement of road lighting.The present invention has realized a kind of simple in structure, good heat dissipation, life-span length, water proof and dust proof, the desirable LED street lamp of light efficiency.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (7)

1. the LED street lamp of a good heat dissipation effect, comprise mounting bracket, be located at the lamp stand head of described mounting bracket end, along described mounting bracket, be connected with from the bottom to top lower end housing in turn, some radiators, upper end housing, it is characterized in that, also comprise the LED light source structure of being close on described radiator front, be covered on the structural diffuser of described LED light source, described LED light source structure comprises the circuit board of being close on described radiator front, evenly be laid in the LED lamp pearl on described circuit board, described lamp stand head is connected by screw with described lower end housing lower end, described lamp stand head and junction, described lower end housing lower end are provided with the first heat radiation space, described the first heat radiation space passes straight through to described radiator, described lower end housing front is provided with some heat radiation circular holes and some heat radiation cylindrical voids, between described some radiators, be provided with the second heat radiation space, some the first radiating fins are extended in middle, the described radiator back side, both sides, the described radiator back side tilt to extend outward the second radiating fin, described the second radiating fin is stair structure and distributes, described the second radiating fin edge is towards having a down dip.
2. the LED street lamp of a kind of good heat dissipation effect according to claim 1, is characterized in that, the drive unit being electrically connected to described LED light source structure is placed in described lower end housing.
3. the LED street lamp of a kind of good heat dissipation effect according to claim 1 and 2, is characterized in that, described mounting bracket, described lamp stand head, described radiator are made by heat-conducting metal, and described heat-conducting metal is selected iron, aluminium or copper.
4. the LED street lamp of a kind of good heat dissipation effect according to claim 3, is characterized in that, described lower end housing and described upper end housing are made by heat-conducting metal or plastics.
5. the LED street lamp of a kind of good heat dissipation effect according to claim 4, is characterized in that, described diffuser is connected by screw mode with described radiator and is connected.
6. the LED street lamp of a kind of good heat dissipation effect according to claim 5, is characterized in that, the junction of described diffuser side and described radiator is provided with silica gel ring.
7. the LED street lamp of a kind of good heat dissipation effect according to claim 6, is characterized in that, described diffuser is made by glass or plastics.
CN201410439514.7A 2014-09-01 2014-09-01 LED road lamp good in heat dissipation effect Pending CN104165309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410439514.7A CN104165309A (en) 2014-09-01 2014-09-01 LED road lamp good in heat dissipation effect

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Application Number Priority Date Filing Date Title
CN201410439514.7A CN104165309A (en) 2014-09-01 2014-09-01 LED road lamp good in heat dissipation effect

Publications (1)

Publication Number Publication Date
CN104165309A true CN104165309A (en) 2014-11-26

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027987A (en) * 2018-09-04 2018-12-18 深圳市思坎普科技有限公司 LED light and lamps and lanterns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027987A (en) * 2018-09-04 2018-12-18 深圳市思坎普科技有限公司 LED light and lamps and lanterns
CN109027987B (en) * 2018-09-04 2019-12-10 深圳市思坎普科技有限公司 LED lamp and lamp

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Application publication date: 20141126