CN201396635Y

CN201396635Y - LED street lamp

Info

Publication number: CN201396635Y
Application number: CN2009200551649U
Authority: CN
Inventors: 刘佐濂; 郭康贤
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-02-03
Anticipated expiration: 2019-04-22

Abstract

The utility model discloses an LED street lamp, which comprises a heat dissipation shell and an aluminum-based circuit board arranged in the heat-dissipating shell. Display-type LED lamps and LED drive circuits are arranged on the aluminum-based circuit board. A lampshade is provided at the opening of the heat dissipation housing; the vertical section of the heat dissipation housing is trapezoidal, and the inner side of the heat dissipation housing includes a second bearing surface, and the second bearing surface extends on both sides with a first bearing surface and a third bearing surface , the angle between the second load-bearing surface and the first load-bearing surface, and the angle between the second load-bearing surface and the third load-bearing surface are 120°-160°; the aluminum-based circuit board is three Blocks are respectively arranged on the first bearing surface, the second bearing surface and the third bearing surface. The LED street lamp of the utility model has uniform illuminance, wide light distribution, can strictly control glare, and is easy to install and maintain.

Description

A kind of LED street lamp

Technical field

The utility model relates to the LED street lamp, refers more particularly to a kind of monoblock type easy care LED street lamp.

Background technology

As emerging light source, LED is in the stage of develop rapidly, at present the existing 100lm/W of the light efficiency of large power white light LED; And by research to its luminescence mechanism, the radiation light efficiency that can extrapolate LED can reach 350lm/W, also has very big development space, along with the raising of LED light efficiency, the decline of cost and government vigorously support industry, and the LED lighting engineering is applied to the road lighting engineering more and more.

As everyone knows, one of characteristics of LED are directed luminous, in the practical application of LED street lamp people all wish light that great power LED is sent as far as possible the zone that need throw light on, directive road surface to reduce light decay and to increase the uniformity of road illumination.At present, the method that adds lens in the LED front is mostly adopted in the design of the luminous intensity distribution of the LED street lamp product on the market, and product is installed on the lens base plate with secondary optical lens earlier, then secondary optical lens base plate and the led array plate that installs is installed on the LED road lamp body., this design increased the complexity of product structure though making moderate progress to the luminous intensity distribution performance of LED street lamp, the light decay that the structural error of easy when mounted appearance is made system is bigger, increase cost and installation difficulty simultaneously, also do not meet the notion of environmental protection, the popularization of influence technique.

Summary of the invention

The purpose of this utility model is to overcome the problem of existing LED road lamp light distribution complex structure, system's installation and maintenance difficulty, provide a kind of light distribution structure simple, effective, system's installation and maintenance are easy to, and various parameters all can reach the LED street lamp of road lighting requirement.

For realizing above purpose, the utility model has been taked following technical scheme: a kind of LED street lamp, include radiating shell, and be arranged on aluminium base circuit board in the radiating shell, on this aluminium base circuit board, be provided with the LED lamp and the led drive circuit of array type, above-mentioned aluminium base circuit board, LED lamp and led drive circuit have been formed the LED illuminating module, are provided with lampshade at the opening part of described radiating shell; The vertical cross-section of described radiating shell is trapezoidal, this radiating shell medial surface comprises second loading end, this second loading end is extended with first loading end and the 3rd loading end to both sides, and the angle between described the 3rd loading end of angle, second loading end between described second loading end and described first loading end is 120 degree---160 degree; Described aluminium base circuit board is three, and it is arranged at respectively on described first loading end, second loading end and the 3rd loading end.

The spatial relation of the integral LED light source that three aluminium base circuit board arrangement of LED form behind loading end is consistent with the spatial relation that aluminium matter radiating shell loading end forms, and this structure is easy for installation, has reduced installation cost, has improved the LED light utilization efficiency.

On the one side of LED lamp, be provided with LGP at described lampshade.The light that utilizes LGP that the LED on the aluminium base circuit board is produced becomes area source by spot light and finally forms good light distribution effect, makes LED street lamp parameters all can reach the lighting requirement of road.

Between described first loading end, second loading end, the 3rd loading end aluminium base circuit board corresponding, be provided with heat-conducting silicon rubber with it.The setting of the heat-conducting silicon rubber heat that LED is sent easily and effectively passes on the radiating shell, to reach better heat radiating effect, prolongs the service life of LED street lamp.

Opening part at described radiating shell is provided with step inwardly, and described lampshade edge is set up on this step.The purpose of step is the embedding that makes things convenient for lampshade.

Between the edge of described step and described lampshade, be provided with back RunddichtringO.Being provided with of sealing ring can prevent that extraneous dust or steam from entering in the LED street lamp, effectively protected the electronic circuit of street lamp, prolongs its service life.

Vertically being provided with demarcation strip on described lampshade, is the boundary with this demarcation strip, and described LGP fits on the lampshade end face of described demarcation strip one side, is the frosted structure on the opposite side lampshade end face of this demarcation strip.Be welded with LED and led drive circuit on this aluminium base circuit board, the main effect of demarcation strip is that these two parts are opened, and the purpose that the lampshade back segment adopts frosted to handle is led drive circuit and the connecting line of can't see outside the LED road lamp body on the aluminium base circuit board.

On the described aluminium base circuit board,, on described radiating shell, be provided with the socket that is complementary with this attaching plug near being provided with attaching plug on the end of described led drive circuit.This connect-disconnect structure makes the installation of aluminium base circuit board and LED lamp and led drive circuit simpler, easy to maintenance.

On the outer surface of described radiating shell, be placed with a plurality of fin.The setting of fin more helps the LED street lamp that the heat in the radiating shell is dispersed into outside the housing, guarantees the normal temperature environment of the LED work in the radiating shell, has further prolonged the service life of LED.

Described radiating shell is made by the die casting mode by aluminium alloy.

Also include tube connector, this tube connector include slice and with last slice between be connected by screw following, slice be connected on this with described radiating shell is one-body molded.Last slice connect one-body moldedly with radiating shell, following sheet is a movable part, last slice with following sheet between be connected by screw, can easily the LED street lamp be fixed on third party's object by tube connector like this.

The utility model compared with prior art, have following advantage: radiating shell is made by the die casting mode by aluminium alloy, the inboard loading end that forms of radiating shell forms fixing angle each other, by aluminium base circuit board, the LED illuminating module that the LED lamp of array type and led drive circuit are formed is installed on the secondary light-distribution of finishing the LED street lamp behind the loading end with the lampshade that sticks LGP, make street lamp illumination even, the luminous intensity distribution broad, can strictly control dazzle again simultaneously, the LED lamp, the all-in-one-piece illuminating module of formation directly was installed on the loading end of radiating shell after the constant-current drive circuit element was welded in aluminium base circuit board, and link to each other with socket on the radiating shell by attaching plug and to make illuminating module convenient for installation and maintenance, the final integral LED street lamp that is easy to installation and maintenance that forms.

Description of drawings

Fig. 1 is the cutaway view of the utility model LED street lamp;

Fig. 2 is the three-dimensional exploded view of the utility model LED street lamp;

Fig. 3 installs the front view of aluminium base circuit board and LED for the radiating shell of the utility model LED street lamp;

Fig. 4 is the rearview of the utility model LED street lamp;

Fig. 5 is the side view of the utility model LED street lamp;

Description of reference numerals: 101, lampshade, 102, sealing ring, 103, LGP, 1011, demarcation strip, 2011, the LED lamp, 2012, led drive circuit, 2013, aluminium base circuit board, 2014, attaching plug, 202, the LED illuminating module, 203, heat-conducting silicon rubber, 301, radiating shell, 3011, step, 3013, socket, 3014, first loading end, 3015, second loading end, 3016, the 3rd loading end, 3017, catch, 3018, fin, 302, tube connector, 3021, last slice, 3022, following sheet, 3023, screw.

The specific embodiment

Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.

Embodiment:

See also Fig. 1 to shown in Figure 5, a kind of LED street lamp, include the one-time formed radiating shell of making by the die casting mode by aluminium alloy 301, and be arranged on three aluminium base circuit boards 2013 in the radiating shell 301, on this aluminium base circuit board 2013, be welded with the LED lamp 2011 and the led drive circuit 2012 of array type, opening part at radiating shell 301 is provided with lampshade 101, and above-mentioned aluminium base circuit board 2013, LED lamp 2011 and led drive circuit 2012 have been formed LED illuminating module 202; The vertical cross-section of radiating shell 301 is trapezoidal, these radiating shell 301 medial surfaces include three plane loading ends that are that aluminium base circuit board 2013 is installed, i.e. first loading end 3014, second loading end 3015, the 3rd loading end 3016, extension is connected with the 3rd loading end 3016 with first loading end 3014 this second loading end 3015 to both sides, included angle B between included angle A between second loading end 3015 and first loading end 3014, second loading end 3015 and the 3rd loading end 3016 is 120 degree---160 degree, preferred 150 degree of present embodiment; Aluminium base circuit board 2013 is fixed in by screw on the above-mentioned loading end (3014,3015,3016) of radiating shell, and first loading end, second loading end, the 3rd loading end are parallel with radiating shell 301 bearing of trends, have identical cross break face; Included angle A in the present embodiment, B are 150 degree, are formed with the fin 3018 of some settings on the outer surface of radiating shell 301, fin be provided with the heat radiation that helps the LED street lamp; On the one side of LED lamp 2011, be provided with LGP 103 at lampshade 101.

Further, for convenient heat with the LED lamp passes to radiating shell 301, reaching better heat radiating effect, between first loading end 3014, second loading end 3015, the 3rd loading end 3016 aluminium base circuit board 2013 corresponding, be provided with heat-conducting silicon rubber 203 with it.

Also include tube connector 302, this tube connector 302 includes 3021 following 3022 of reaching to movable part, this time sheet 3022 is connected by screw 3023 between 3021 with last slice, on this slices 3021 with 301 one-body molded connections of radiating shell, this tube connector can conveniently be fixed on the LED street lamp on third party's object.

For the card that makes things convenient for lampshade 101 is established, be provided with step 3011 inwardly at the opening part of radiating shell 301, lampshade 101 is locked on the rectangular aperture step 3011 of radiating shell 301 by screw; For further guaranteeing the sealing effectiveness in the LED street lamp, between the edge of step 3011 and lampshade 101, be provided with back RunddichtringO 102.

Further, vertically being provided with demarcation strip 1011 on lampshade 101, is the boundary with this demarcation strip 1011, and LGP 103 fits in lampshade 101 on an end face of the LED lamp 2011 on the aluminium base circuit board 2013, is the frosted structure on the other end of this lampshade 101.

On the aluminium base circuit board 2013, near being provided with attaching plug 2014 on the end of led drive circuit 2012, this attaching plug 2014 links to obtain the driving power of aluminium base circuit board 2013 with the socket 3013 that is installed on the radiating shell 301.

Further, for optimizing the global design of LED street lamp, on an end of radiating shell 301, be provided with catch 3017.

Above-listed detailed description is at the specifying of the utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.

Claims

1. An LED street lamp, comprising a heat dissipation housing (301), and an aluminum-based circuit board (2013) arranged in the heat dissipation housing (301), on which a display type LED lamp (2011) and LED driving circuit (2012), the above-mentioned aluminum-based circuit board (2013), LED lamp (2011) and LED driving circuit (2012) constitute the LED lighting module (202), in the heat dissipation shell The opening of (301) is provided with a lampshade (101), characterized in that: the vertical section of the heat dissipation housing (301) is trapezoidal, the inner side of the heat dissipation housing (301) includes a second bearing surface (3015), the The second bearing surface (3015) has a first bearing surface (3014) and a third bearing surface (3016) extending to both sides, and the distance between the second bearing surface (3015) and the first bearing surface (3014) The included angle, the included angle between the second bearing surface (3015) and the third bearing surface (3016) is 120 degrees---160 degrees; the aluminum base circuit board (2013) is three pieces, which are respectively set on the first bearing surface (3014), the second bearing surface (3015) and the third bearing surface (3016).

2. The LED street lamp according to claim 1, characterized in that: a light guide plate (103) is provided on the side of the lampshade (101) facing the LED lamp (2011).

3. The LED street lamp according to claim 2, characterized in that: the aluminum base circuit board ( 2013) is provided with heat-conducting silicone rubber (203).

4. The LED street lamp according to claim 3, characterized in that: a step (3011) is provided on the inner side of the opening of the heat dissipation housing (301), and the edge of the lampshade (101) is built on the step ( 3011) on.

5. The LED street lamp according to claim 4, characterized in that a return-type sealing ring (102) is provided between the step (3011) and the edge of the lampshade (101).

6. The LED street lamp according to claim 5, characterized in that: a partition plate (1011) is vertically provided on the lampshade (101), with the partition plate (1011) as the boundary, the light guide plate (103) is attached to the end surface of the lampshade (101) on one side of the partition plate (1011), and the end surface of the lampshade (101) on the other side of the partition plate (1011) has a frosted structure.

7. The LED street lamp according to claim 6, characterized in that: a power plug (2014) is provided on the aluminum-based circuit board (2013), at one end close to the LED driving circuit (2012), and A socket (3013) matching the power plug (2014) is provided on the heat dissipation housing (301).

8. The LED street lamp according to claim 7, characterized in that a plurality of cooling fins (3018) are arranged on the outer surface of the cooling housing (301).

9. The LED street lamp according to claim 8, characterized in that: the heat dissipation housing (301) is made of aluminum alloy by die-casting.

10. The LED street lamp according to claim 9, characterized in that it also includes a connecting pipe (302), the connecting pipe (302) includes an upper piece (3021) and the upper piece (3021) through a screw ( 3023) the lower piece (3022) connected, and the upper piece (3021) is integrally formed and connected with the heat dissipation housing (301).