CN201396635Y - LED street lamp - Google Patents

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 light

technical field

The utility model relates to an LED street lamp, in particular to an integrated and easy-to-maintain LED street lamp.

Background technique

As an emerging light source, LED is in the stage of rapid development. At present, the luminous efficacy of high-power white LEDs has reached 100lm/W; There is a lot of room for development. With the improvement of LED light efficiency, the reduction of cost and the government's strong support for the industry, LED lighting technology is more and more applied to road lighting projects.

As we all know, one of the characteristics of LED is directional light emission. In the practical application of LED street lamps, people hope that the light emitted by high-power LEDs can be directed to the area to be illuminated on the road as much as possible to reduce light decay and increase the uniformity of road illumination. At present, the light distribution design of LED street lamp products on the market mostly adopts the method of adding a lens in front of the LED. The product first installs the secondary optical lens on the lens base plate, and then installs the installed secondary optical lens base plate and LED array board on the LED street light lamp body. Although this design improves the light distribution performance of LED street lamps, it increases the complexity of the product structure, and it is prone to structural errors during installation, resulting in a large light attenuation of the system. At the same time, it increases the cost and difficulty of installation. It conforms to the concept of green environmental protection and affects the promotion of technology.

Contents of the invention

The purpose of this utility model is to overcome the problems of complex light distribution structure and difficult system installation and maintenance of existing LED street lamps, and provide a light distribution structure with simple structure, good effect, easy system installation and maintenance, and various parameters can meet the requirements of road lighting. LED street lights.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an LED street lamp, including a heat dissipation housing, and an aluminum-based circuit board arranged in the heat-dissipating housing, on which a display type The LED lamp and the LED driving circuit, the above-mentioned aluminum-based circuit board, the LED lamp and the LED driving circuit form an LED lighting module, and a lampshade is provided at the opening of the heat dissipation housing; the vertical section of the heat dissipation housing is trapezoidal, The inner surface of the heat dissipation housing includes a second bearing surface, and the second bearing surface has a first bearing surface and a third bearing surface extending on both sides, the angle between the second bearing surface and the first bearing surface, the second The included angle between the third bearing surface of the two bearing surfaces is 120 degrees---160 degrees; the aluminum-based circuit boards are three pieces, which are respectively arranged on the first bearing surface, the second bearing surface and the second bearing surface. Three bearing surfaces.

The spatial position relationship of the overall LED light source formed after the three LED aluminum-based circuit boards are arranged on the bearing surface is consistent with the spatial position relationship formed by the aluminum heat dissipation shell bearing surface. This structure is easy to install, reduces installation costs, and improves LED light utilization.

A light guide plate is arranged on the side of the lampshade facing the LED lamp. Use the light guide plate to make the light generated by the LED on the aluminum-based circuit board change from a point light source to a surface light source, and finally form a good light distribution effect, so that all parameters of the LED street lamp can meet the lighting requirements of the road.

Thermally conductive silicon rubber is provided between the first bearing surface, the second bearing surface, the third bearing surface and their corresponding aluminum-based circuit boards. The setting of the heat-conducting silicone rubber facilitates and effectively transfers the heat emitted by the LED to the heat-dissipating shell, so as to achieve a good heat-dissipating effect and prolong the service life of the LED street lamp.

A step is arranged inwardly at the opening of the heat dissipation housing, and the edge of the lampshade is built on the step. The purpose of the steps is to facilitate the insertion of the lampshade.

A back-type sealing ring is provided between the step and the edge of the lampshade. The setting of the sealing ring can prevent external dust or water vapor from entering the LED street lamp, effectively protecting the electronic circuit of the street lamp and prolonging its service life.

A partition plate is vertically arranged on the lampshade, with the partition plate as the boundary, the light guide plate is attached to the lampshade end surface on one side of the partition plate, and the lampshade end surface on the other side of the partition plate The upper part is frosted structure. LED and LED driving circuit are welded on the aluminum base circuit board. The main function of the partition plate is to separate the two parts. The purpose of frosting the rear part of the lampshade is to prevent the aluminum base circuit board from being seen from the outside of the LED street lamp. The LED drive circuit and connecting wires on it.

A power plug is provided on the aluminum base circuit board near the end of the LED driving circuit, and a socket matching the power plug is provided on the heat dissipation housing. This plug-in structure makes the installation of the aluminum-based circuit board, the LED lamp and the LED driving circuit simpler and easier to maintain.

A plurality of cooling fins are arranged on the outer surface of the cooling housing. The setting of the heat sink is more helpful for the LED street lamp to dissipate the heat in the heat dissipation housing to the outside of the housing, ensuring the normal temperature environment of the LED in the heat dissipation housing, and further prolonging the service life of the LED.

The heat dissipation housing is made of aluminum alloy through die casting.

It also includes a connecting pipe, the connecting pipe includes an upper piece and a lower piece connected with the upper piece through screws, and the upper piece is integrally formed and connected with the heat dissipation housing. The upper piece is integrally formed with the heat dissipation shell, the lower piece is a movable component, and the upper piece and the lower piece are connected by screws, so that the LED street light can be easily fixed on a third-party object through the connecting tube.

Compared with the prior art, the utility model has the following advantages: the heat dissipation shell is made of aluminum alloy through die-casting, the bearing surfaces formed inside the heat dissipation shell form a fixed angle with each other, and the aluminum base circuit board, display The LED light-emitting module composed of a type LED lamp and an LED drive circuit is installed on the bearing surface and completes the secondary light distribution of the LED street lamp together with the lampshade attached to the light guide plate, so that the illumination of the street lamp is uniform, the light distribution is wide, and it can be strictly controlled. To control glare, LED lamps and constant current drive circuit components are welded on the aluminum-based circuit board to form an integral light-emitting module, which is directly installed on the bearing surface of the heat-dissipating shell, and is connected to the socket on the heat-dissipating shell through the power plug to make it emit light The module is easy to install and maintain, and finally forms an integral LED street light that is easy to install and maintain.

Description of drawings

Fig. 1 is the sectional view of LED street lamp of the present invention;

Fig. 2 is a three-dimensional exploded view of the LED street lamp of the present invention;

Fig. 3 is the front view of the aluminum-based circuit board and LED installed on the heat dissipation housing of the LED street lamp of the present invention;

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

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

Description of reference signs: 101, lampshade, 102, sealing ring, 103, light guide plate, 1011, partition plate, 2011, LED lamp, 2012, LED drive circuit, 2013, aluminum-based circuit board, 2014, power plug, 202, LED lighting module, 203, heat-conducting silicone rubber, 301, heat dissipation shell, 3011, steps, 3013, socket, 3014, first bearing surface, 3015, second bearing surface, 3016, third bearing surface, 3017, baffle , 3018, heat sink, 302, connecting pipe, 3021, upper piece, 3022, lower piece, 3023, screw.

Detailed ways

The content of the present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Example:

Please refer to Fig. 1 to Fig. 5, an LED street lamp includes a heat dissipation shell 301 made of aluminum alloy through die-casting, and three aluminum-based circuit boards 2013 arranged in the heat dissipation shell 301 A display-type LED lamp 2011 and an LED drive circuit 2012 are welded on the aluminum-based circuit board 2013, and a lampshade 101 is provided at the opening of the heat dissipation housing 301. The aluminum-based circuit board 2013, the LED lamp 2011 and the LED drive circuit 2012 constitutes the LED light-emitting module 202; the vertical section of the heat dissipation housing 301 is trapezoidal, and the inner side of the heat dissipation housing 301 includes three planar bearing surfaces on which the aluminum-based circuit board 2013 is installed, that is, the first bearing surface 3014, The second bearing surface 3015 and the third bearing surface 3016, the second bearing surface 3015 extends to both sides and connects with the first bearing surface 3014 and the third bearing surface 3016, the distance between the second bearing surface 3015 and the first bearing surface 3014 The included angle A and the included angle B between the second load-bearing surface 3015 and the third load-bearing surface 3016 are all 120°---160°, preferably 150° in this embodiment; the aluminum-based circuit board 2013 is fixed to the heat dissipation housing by screws On the above-mentioned bearing surfaces (3014, 3015, 3016), the first bearing surface, the second bearing surface, and the third bearing surface are parallel to the extending direction of the heat dissipation housing 301 and have the same transverse folding surface; the included angle in this embodiment A and B are 150 degrees, and the outer surface of the heat dissipation housing 301 is formed with a number of vertical heat sinks 3018. The arrangement of the heat sinks is helpful for the heat dissipation of the LED street lamp; a light guide plate is provided on the side of the lampshade 101 facing the LED lamp 2011 103.

Further, in order to facilitate the heat transfer of the LED lamp to the heat dissipation housing 301 to achieve a good heat dissipation effect, the first bearing surface 3014, the second bearing surface 3015, the third bearing surface 3016 and the corresponding aluminum-based circuit board 2013 Thermally conductive silicone rubber 203 is provided between them.

Also includes a connecting pipe 302, the connecting pipe 302 includes an upper piece 3021 and a lower piece 3022 which is a movable component, the lower piece 3022 and the upper piece 3021 are connected by screws 3023, the upper piece 3021 is integrated with the heat dissipation shell 301 Formed connection, the connecting tube can facilitate fixing the LED street light on third-party objects.

In order to facilitate the clamping of the lampshade 101, a step 3011 is provided at the opening of the heat dissipation housing 301, and the lampshade 101 is locked on the rectangular opening step 3011 of the heat dissipation housing 301 by screws; in order to further ensure the sealing effect in the LED street lamp, A back-type sealing ring 102 is provided between the step 3011 and the edge of the lampshade 101 .

Further, a partition plate 1011 is vertically provided on the lampshade 101, with the partition plate 1011 as a boundary, the light guide plate 103 is attached to the end surface of the lampshade 101 facing the LED lamp 2011 on the aluminum base circuit board 2013, the The other end surface of the lampshade 101 is frosted.

A power plug 2014 is provided on the aluminum base circuit board 2013 near the end of the LED drive circuit 2012 .

Furthermore, in order to optimize the overall design of the LED street lamp, a baffle 3017 is provided on one end of the heat dissipation housing 301 .

The above detailed description is a specific description of the feasible embodiment of the utility model. This embodiment is not used to limit the patent scope of the utility model. Any equivalent implementation or change that does not deviate from the utility model shall be included in this case within the scope of the patent.

Claims (10)

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).

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