CN201412738Y

CN201412738Y - Novel LED street lamp

Info

Publication number: CN201412738Y
Application number: CN2009200894066U
Authority: CN
Inventors: 万承钢; 吴赟; 冯振新
Original assignee: Honor Trust Technology Co Ltd
Current assignee: Honor Trust Technology Co Ltd
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2010-02-24
Anticipated expiration: 2019-04-03

Abstract

The utility model relates to a novel LED street lamp which can effectively solve the problems of poor heat radiation effect, short service life and difficult maintenance. The utility model adopts thestructure that a lamp body is arranged in a housing, a head section of the lamp body is in butt joint with a middle section I of the lamp body, the middle section I is in butt joint with a middle section II, the middle section II is in butt joint with a tail section, a sealing gasket is arranged between the head section and the middle section I, and the middle section I is connected with the middle section II through a fastener; the sealing gasket is arranged between the middle section II and the tail section, and the middle section II is connected with the tail section through the fastener; the middle section I is the same with the middle section II; the head section comprises a fixing hole and a wire outlet hole, the fastener integrally connected with the head section is arranged in thefixing hole, one end of the wire outlet hole is communicated with the bonding surface of the head section and the middle section I, the other end thereof is communicated with the head section, each ofthe two surfaces at the lower parts of the middle section I and the middle section II comprises a heat conducting aluminum substrate, an LED display panel is mounted on the heat conducting aluminum substrate, and a lens for sealing and covering an LED bulb is mounted on the heat conducting aluminum substrate. The utility model has the advantages of good heat radiation effect, long service life, fewer faults and no maintenance.

Description

A kind of Novel LED street lamp

One, technical field

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

Two, background technology

The energy consumption of lighting field accounts for 20% of whole electric energy, and that common illuminating lamp only has 30% electric energy to be used for is luminous, and remaining changes into heat energy and distributes to the external world.The heat energy that LED produces during because of its work is less, and luminous efficiency is higher, is regarded as cold light source, and the LED street lamp is by the substrate of band LED, compositions such as lens and cooling system, and with traditional incandescent lamp, high-pressure mercury lamp, fluorescent lamp is compared, and its electric energy can reach more than 90%.Since it is born, its high-efficiency low energy consumption, energy-conserving and environment-protective, characteristics such as the life-span is long more and more are subjected to the attention of countries in the world, estimate according to the parties concerned, the existing street lamp sum of China is greatly about more than 100,000,000, and with annual 20% speed increment, just newly-increased street lamp was 2,000 ten thousand in 2008.If these hundred million street lamps can be amounted to and become 6,000 ten thousand 250 watts street lamp, suppose that again these 6,000 ten thousand street lamps all make the LED street lamp into, can save 1,500 ten thousand kilowatts power so altogether.Suppose that every street lamp worked 12 hours every day, in 1 year, will save 65,700,000,000 degree.And the three gorges hydropower plant is 616.03 hundred million degree generating total amount in 2007.Therefore the street lamp in the whole nation all being changed into the electric weight of being saved behind the LED street lamp will be above the generated energy in 1 year of a three gorges hydropower plant.This is an extremely surprising numeral.

Though LED is regarded as cold light source, still can produce certain heat during work.Particularly in high-power, high-brightness LED light source applications, the light decay of led light source and its node operating temperature are contacted directly.When the node operating temperature is higher than 60 ℃, the working life of light source will significantly descend, experimental results show that: when surpassing 60 ℃, 5 ℃ of the every risings of LED operating temperature, the LED light decay increases by 10%, under the reason condition, the LED operating temperature should be controlled at below 60 ℃, could guarantee the service life more than 50,000 hours.Therefore how to reduce node temperature and just become the key that guarantees the led light source reliably working life-span.

Also having the Switching Power Supply of whole LED street lamp is Alternating Current Power Supply, and alternating current must just can become direct current through rectifying and wave-filtering, thereby all must adopt electrochemical capacitor to come filtering in all Switching Power Supplies.As everyone knows, the life-span of electrochemical capacitor is the life-span of very low, general electrochemical capacitor to have only 1000 hours, and long-life electrochemical capacitor life-span also has only 10,000 hours.And, every rising 10 degree of ambient temperature, the life-span is just reduced half.Along with the rising of warm operating temperature, the life-span of electrochemical capacitor is also just shorter in the light fixture of high-power LED street lamp.And be more than 50,000 hours to the life requirements of LED street lamp usually.The life-span of whole light fixture will inevitably be subjected to short the tying down of electrochemical capacitor life-span.

But, in the practical application, for the angle light fixture of appreciation attractive in appearance often can not do too big, so led light source and Switching Power Supply thereof, constant-current drive circuit also often are arranged on a lamp holder the inside that the space is limited, therefore the heat that distributes of Switching Power Supply, the heat that constant-current drive circuit distributed adds that the heat that LED distributes all concentrates on the lamp holder, reduces the operating temperature of node thereby poor effect by the mode of natural heat dissipation.Because Switching Power Supply is arranged in the lamp holder and fault rate is also the highest in the LED street lamp, this has also brought difficulty just for maintenance work from now on.Thereby the improvement of LED street lamp is imperative with innovation.

Three, utility model content

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of Novel LED street lamp, can effectively solve existing LED road lamp cooling weak effect, service life is short, the problem of maintenance difficult, the technical scheme of its solution is, include housing, lamp body and LED bulb, lamp body places in the housing, and said lamp body is one section butt joint of a Duan Yuzhong, in one section with in two sections dock, in two sections connect with rear and dock, be provided with sealing gasket between one section of the Duan Yuzhong, head section by securing member with in one section be connected; In one section and in be provided with sealing gasket between two sections, in one section by securing member with in two sections be connected; In two sections be provided with sealing gasket with rear, in two sections be connected with rear by securing member; In one section with in two sections identical, Duan Youyi fixing hole and wire hole, the fixing hole the inside is provided with the securing member of semicanal type, be connected with the head section is whole, one section faying face of wire hole one end feedthrough Duan Yuzhong, other end feedthrough section, in one section, in two faces of two pars infrasegmentalises the thermal conductivity aluminum matrix plate is respectively arranged, the LED showing plate is housed on the thermal conductivity aluminum matrix plate, the lens of capping LED bulb are housed on the thermal conductivity aluminum matrix plate, the utility model is simple in structure, good heat dissipation effect, long service life, the heat that can more directly the LED lamp be produced in time distributes in air and lamp body is the dc low-voltage power supply, fault is few non-maintaining, and economic and social benefit is remarkable.

Four, description of drawings

Fig. 1 is a structural perspective of the present utility model.

Fig. 2 is parts split figure of the present utility model.

Fig. 3 is heat radiation wing part-structure figure of the present utility model.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

Shown in Fig. 1-3, the utility model includes housing, lamp body and LED bulb, lamp body places in the housing, said lamp body be head section 1 with in one section 2 dock, in one section with in two section 3 dock, in two section 3 connect with rear 4 and dock, head section 1 with in be provided with sealing gasket 9a between one section 2, head section 1 pass through securing member 10a with in one section 2 be connected; In one section and in be provided with sealing gasket 9b between two sections, in one section by securing member 10b with in two sections be connected; In two sections be provided with sealing gasket 9c with rear, in two sections be connected with rear by securing member 10c; In one section with in two sections identical, head section 1 has a fixing hole and wire hole, the fixing hole the inside is provided with the securing member 6 of semicanal type, be connected with the head section is whole, one section faying face of wire hole one end feedthrough Duan Yuzhong, other end feedthrough section, in one section, in two faces of two pars infrasegmentalises thermal conductivity aluminum matrix plate 12 is respectively arranged, the LED showing plate is housed on the thermal conductivity aluminum matrix plate 12, the lens 14 of capping LED bulb are housed on the thermal conductivity aluminum matrix plate 12.

In order to guarantee result of use, in said one section 2, in two section 3 upper surface 18 be circular-arc, heat radiation wing 17 is equipped with on its top, heat radiation wing 17 is tabular, along in one section 2, in two section 3 length direction (outwards) extension, in one section, in be provided with several heat radiation wings 16 in two sections, link to each other with heat radiation wing 17 on the upper surface 18, in one section, in two sections bottoms be 160 to spend the V fonts and link to each other with heat radiation wing 16 in it; 12 of said lens 14 and thermal conductivity aluminum matrix plates have sealing gasket; Rear has cavity, cover plate is arranged at the bottom, several louvres are arranged on the cover plate, the inboard of cavity have with in two sections through holes that communicate, be provided with the reference column that constant-current drive circuit is installed in the cavity, the LED lamp is by switch, the switching power circuit plate is sealed in the aluminium vessel of rectangle, the power component of circuit is screwed the inboard at aluminium vessel, the container that the heat that distributes during work conducts to aluminum dissipates, respectively there is a power line at LED lamp two, and one is the input of AC220 volt, and one is the output of 24 volts of direct currents.

The some groups of constant-current devices that work alone are arranged on the constant-current drive circuit, the output of every group of constant-current device connects corresponding LED showing plate by lead, each is organized constant-current device and has public input, input is by the output of lead connection Switching Power Supply, and LED road lamp switch power supply 23 is arranged on the bottom of street lamp post.

Said LED showing plate is made of several LED showing plates, and one group of LED bulb is set on each LED showing plate, and each LED showing plate is connected the front of the substrate in stage casing by securing member;

The LED street lamp also comprises constant-current source, constant-current source is arranged in the cavity of sealing of rear, constant-current source comprises the some groups of constant-current devices that work alone, the output of every group of constant-current device connects corresponding LED showing plate by lead, each is organized constant-current device and has public input, and input connects the output of Switching Power Supply by lead.

Said wire hole place is provided with water joint, in the lamp body one section, in two sections the sealing gasket at two ends be that heat conductive silica gel is made, in one section, in two sections can become section bar by plastics or casting of metals, the sealing gasket between lens and the lamp body also is that heat conductive silica gel is made.

Switching Power Supply and constant-current drive circuit separate, and constant-current circuit is installed in the lamp tail, and Switching Power Supply is installed in the lamppost lower end, and just high-low pressure has separated.Switching Power Supply is sealed in the aluminum metal case, can better dispel the heat and electromagnetic radiation shielding.

Adopt modular optical source distribution.Each led light source module is distributed on the aluminium base circuit by one group of luminescence unit, and each luminescence unit comprises a LED bulb and drive circuit at least.The distribution mode of modularized light source in this, first, the person that can give the road lamp management is with very big adjustment leeway, it can freely increase or delete the led light source module in the street lamp according to the variation of environmental condition, improve or reduce the power of LED street lamp, avoid luminance shortage or waste electric energy, second, this Modular LED light source, be connected in parallel because its circuit constitutes to be,, also can not influence the use of whole street lamp even wherein a certain led light source damages, can improve the functional reliability of street lamp, the 3rd, this modular distribution of light sources can be so that led light source be more evenly distributed, improve the thermal diffusivity of circuit board, reduce the operating temperature of led light source node.

The LED street lamp that the utility model relates to, lamp holder, lamp tail and stage casing all are the modules of the standard of being cast into, be applicable to the product of different size in the same width series, and the stage casing is the module of standard, can make up different length as required arbitrarily, cooperate head section and rear can be combined into the LED street lamp of different size, a mold can be made the product of same width series plurality of specifications.

The LED street lamp that the utility model relates to, the head section, the stage casing, rear is that Heat Conduction Material makes, the inside in stage casing and top are provided with several heat radiation wings, compare with the fan heat radiation, the heat that can more directly the LED lamp be produced in time distributes in air and lamp body is the dc low-voltage power supply, and fault is few non-maintaining.

Claims

1, a kind of Novel LED street lamp includes housing, lamp body and LED bulb, lamp body places in the housing, it is characterized in that, said lamp body be head section (1) with in one section (2) dock, in one section with in two sections (3) dock, in two sections (3) dock with rear (4) company, head section (1) with in be provided with sealing gasket (9a) between one section (2), head section (1) pass through securing member (10a) with in one section (2) be connected; In one section and in be provided with sealing gasket (9b) between two sections, in one section by securing member (10b) with in two sections be connected; In two sections be provided with sealing gasket (9c) with rear, in two sections be connected with rear by securing member (10c); In one section with in two sections identical, head section (1) has a fixing hole and wire hole, the fixing hole the inside is provided with the securing member (6) of semicanal type, be connected with the head section is whole, one section faying face of wire hole one end feedthrough Duan Yuzhong, other end feedthrough section, in one section, in two faces of two pars infrasegmentalises thermal conductivity aluminum matrix plate (12) is respectively arranged, the thermal conductivity aluminum matrix plate is equipped with the LED showing plate on (12), and the lens (14) of capping LED bulb are housed on the thermal conductivity aluminum matrix plate (12).

2, Novel LED street lamp according to claim 1, it is characterized in that, one section (2) in said, in two sections (3) upper surfaces (18) be circular-arc, heat radiation wing (17) is equipped with on its top, heat radiation wing (17) is tabular, along in one section (2), in two sections (3) length directions extend, in one section, in be provided with several heat radiation wings (16) in two sections, link to each other with the heat radiation wing (17) on the upper surface (18), in one section, in two sections bottoms be that 160 degree V fonts link to each other with its interior heat radiation wing (16).

3, Novel LED street lamp according to claim 1 is characterized in that, between said lens (14) and thermal conductivity aluminum matrix plate (12) sealing gasket is arranged.

4, Novel LED street lamp according to claim 1 is characterized in that, said rear has cavity, cover plate is arranged at the bottom, several louvres are arranged on the cover plate, the inboard of cavity have with in two sections through holes that communicate, be provided with the reference column that constant-current drive circuit is installed in the cavity.

5, Novel LED street lamp according to claim 1, it is characterized in that, said LED lamp is by switch, the switching power circuit plate is sealed in the aluminium vessel of rectangle, the power component of circuit is screwed the inboard at aluminium vessel, respectively there is a power line at LED lamp two, and one is the input of AC220 volt, and one is the output of 24 volts of direct currents.

6, Novel LED street lamp according to claim 1, it is characterized in that, said LED showing plate is made of several LED showing plates, and one group of LED bulb is set on each LED showing plate, and each LED showing plate is connected the front of the substrate in stage casing by securing member

7, Novel LED street lamp according to claim 1, it is characterized in that, the some groups of constant-current devices that work alone are arranged on the said constant-current drive circuit, the output of every group of constant-current device connects corresponding LED showing plate by lead, each is organized constant-current device and has public input, input is by the output of lead connection Switching Power Supply, and LED road lamp switch power supply (23) is arranged on the bottom of street lamp post.

8, Novel LED street lamp according to claim 1, it is characterized in that, said LED street lamp comprises constant-current source, constant-current source is arranged in the cavity of sealing of rear, constant-current source comprises the some groups of constant-current devices that work alone, the output of every group of constant-current device connects corresponding LED showing plate by lead, and each is organized constant-current device and has public input, and input connects the output of Switching Power Supply by lead.