WO2012097495A1

WO2012097495A1 - Led street lamp with adjustable illumination angle

Info

Publication number: WO2012097495A1
Application number: PCT/CN2011/070311
Authority: WO
Inventors: 吴峰
Original assignee: Wu Feng
Priority date: 2011-01-17
Filing date: 2011-01-17
Publication date: 2012-07-26
Also published as: CN202852712U

Abstract

An LED street lamp with adjustable illumination angle comprises an LED street lamp main body (10) and built-in LED lamp module (90) and control circuit. Each LED lamp of the LED lamp module (90) is provided with a secondary light distribution lens. The LED street lamp main body (10) comprises a fixed assembly (20) and a movable assembly (30). One end of the fixed assembly (20) is fixedly connected with the LED street lamp main body (10), the other end is provided with a connection part (201); one end of the movable assembly (30) is provided with a connection part (301) movably connected with the connection part (201) of the fixed assembly (20), so that the pitch angle of the LED street lamp main body (10) can be adjusted with connection parts of the fixed assembly (20) and the movable assembly (30) as the pivot. The control circuit comprises a microprocessor (53), and the LED lamp module (90) is connected with an environment monitoring sensor (55) for feedbacking the environment state and a working state sensor (56), which are connected with the microprocessor (53), so as to adjust the light of the LED street lamp conveniently. The LED street lamp has simple structure, facilitates installation, and is suitable to various road illuminations.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a lighting device for outdoor lighting such as a street or a road, and more particularly to an LED street lamp using a semiconductor light emitting device, and more particularly to an LED street lamp with an adjustable illumination angle.

BACKGROUND OF THE INVENTION As a new generation of illumination source, LED solid-state illumination has the advantages of high luminous efficiency, good energy saving effect, long life and environmental protection, and is the best choice for next generation lighting. In recent years, with the development of LED lighting technology, a large number of LED lighting products have sprung up. Among them, in the urban road lighting application, high-power LED street lamps have been applied more and more for their long life, energy saving and environmental protection, and their development has greatly replaced the trend of traditional high-pressure sodium lamps.

In the prior art, when installing the LED street lamp, it must be installed on the lamp post with the lamp arm, and cannot be directly mounted on the vertical lamp post, and the installation and connection portion of the LED street lamp is fixed structure, and the lamp head cannot be adjusted at a large angle. Angle. Therefore, in order to enable the LED street lamp to accurately illuminate the road surface, it is necessary to adapt the design of the lamp arm and the LED street lamp installation and connection components according to different illumination angles, so that the LED street lamp is mounted on the lamp post with appropriate pitch. The angle is illuminated to the road surface. Since the lamp head, the lamp post and the lamp arm of the LED street lamp cannot be adjusted, the area where the LED street lamp illuminates the road surface cannot be adjusted, which is inconvenient for adjusting the irradiation area of the street lamp according to the specific road surface condition of the road.

As a kind of solid illumination source, LED lamp can work under safe low voltage with long life, high luminous efficiency, multi-light color and one-time directional illumination. It can also be continuously switched to achieve 0 ~ 100% dimming function. The prior art LED street lamp needs to be equipped with a light distribution design, and the light distribution design of the street lamp is different from that of other lamps. It is not only possible to illuminate the area under the lamp, but also must strictly control the glare, considering environmental factors, existing The technical LED street lamps do not solve the light distribution problem well, so that the advantages of the LED street lamps are not exerted, and the LED lamps cannot be adjusted according to environmental factors, and the LED lamps can be adjusted according to environmental factors to a greater extent. To make use of the advantages of environmental protection and energy saving of LED street lamps, and to adapt to different road irradiation requirements. Therefore, it is necessary to improve the structure of the existing LED street lamp installation parts, the light-emitting efficiency of LED street lamps, and the adjustment according to environmental factors. Intelligent adjustment of LED street lights, further realize the advantages of LED street lights on the basis of environmental protection and energy saving of LED street lamps . SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to avoid the deficiencies of the prior art described above, and further improve the prior art, and propose an LED street lamp body with an adjustable pitch angle that can adapt to different cross-sectional shapes and bending degrees. The LED street light of the street light pole can adjust the LED street light according to the environment, adapt to the needs of different road illumination, and further reduce the energy consumption of the LED street light. The technical solution for solving the technical problem of the present invention is: designing an LED street lamp capable of adjusting an illumination angle, comprising an LED street lamp body, in particular, further comprising a fixing component and a movable component; and one end of the fixing component and the LED street lamp body a fixed connection, the other end is provided with a connecting portion; the movable component is also provided with a connecting portion at one end thereof, and is movably connected with the connecting portion of the fixed component, so that the LED street lamp body is tilted by the connecting portion of the fixed component and the movable component as a fulcrum, and the angle is adjusted. The other end is connected to the street light pole.

As an improvement of the LED street lamp body of the present invention, the connecting portion of the fixing component and the movable component are all provided with a circular end cap; the inner end wall of the circular end cap of the fixing component has axial strip teeth, and the circular shape of the movable component The inner wall of the cap cover is provided with axial strip teeth that engage the strip teeth on the stationary assembly; the two components engage each other.

The cover surface of either end of the serrated round end cap of the fixed component or the movable component is provided with a scale for identifying the pitch angle of the LED street lamp body.

In order to make the wiring more convenient and quick, the upper surface of the LED street lamp body is provided with a groove, a built-in terminal block, and an outer cover wire cover.

The invention can also be realized by another implementation scheme: designing an LED street lamp with adjustable illumination angle, comprising an LED street lamp body, the LED street lamp body has an LED lamp module built therein, and a single LED lamp in the LED lamp module Equipped with a large-angle secondary light distribution lens, the secondary light distribution lens includes a first light distribution lens and a second light distribution lens wrapped thereon, and particularly includes a fixing component and a movable component, one end of the fixing component The LED street lamp body is fixedly connected, and the other end is provided with a connecting portion; the movable component is also provided with a connecting portion at one end thereof, and is movably connected with the connecting portion of the fixing component, so that the LED street lamp body is supported by the connecting portion of the fixed component and the movable component. a pitch adjustment angle, the other end of which is connected to the street light pole; the first light distribution lens is a hemispherical surface or an elliptical aspheric surface; the second light distribution lens is a peanut shell type asymmetric curved surface, including a main curved surface and a main joint a first and a second glare eliminating surface of the curved surface; after the LED beam is emitted from the first light distribution lens, the light is passed through a main curved surface of the second light distribution lens Projecting, the first and second glare eliminating surfaces are used for concentrating the glare beam generated by the LED light passing through the first light distribution lens, and then projecting from the main curved surface; forming the LED street lamp body pitch adjustment and the built-in LED light output adjustment Level adjusts the angle of illumination.

As a further improvement of the technical solution, the connecting portion of the fixing component and the movable component respectively adopts a circular end cap; the inner end wall of the circular end cap of the fixing component has axial strip teeth, and the circular end cap of the movable component The inner wall of the cover is provided with axial strip teeth that mesh with the strip teeth on the fixed assembly; the two components mesh with each other in the horizontal direction.

The light exiting range of the main curved surface is located at the center of the bottom surface of the first light distribution lens, and the angle of the Z axis in the vertical direction is ±71. The angle of the X axis in the horizontal direction is 0. ~ ± 71. The angle between the angle and the Y axis is 0. ~ ± 30. Within the angle; the first, The light-emitting range of the second glare-removing surface is located at the origin of the first light-collecting lens, and the angle of the Z-axis in the vertical direction is ±71. ~ ± 90. between.

The first light distribution lens has a radius of curvature of 3.4 mm when it is a hemispherical surface.

When the first light distribution lens is an elliptical aspherical surface, the minor axis has a radius of curvature of 3.4 mm.

The bottom of the second light distribution lens is provided with a card foot at the bottom of the second light distribution lens, and the base for mounting the second light distribution lens is provided with a card slot adapted to the card foot.

The height of the card foot is 1.5 ~ 3mm.

The technology of the present invention further includes another implementation scheme for realizing intelligent adjustment and control of the LED street lamp, including the LED street lamp body, the LED street lamp body has an LED lamp module built therein, and the single LED lamp in the LED lamp module is matched The second light distribution lens includes a first light distribution lens and a second light distribution lens wrapped around the second light distribution lens; the LED street light body has an AC/D power conversion circuit and power electrically connected a conversion circuit, the power conversion circuit is electrically connected to the LED lamp module, and further includes a fixing component and a movable component, wherein one end of the fixing component is fixedly connected to the LED street lamp body, and the other end is provided with a connecting portion; One end is also provided with a connecting portion, and is movably connected with the connecting portion of the fixing component, so that the LED street lamp body is tilted by the connecting portion of the fixed component and the movable component as a fulcrum, and the other end is connected with the lamppost; the power conversion circuit The LED module is also electrically connected with a microprocessor and a DC/DC conversion module, the AC/DC power conversion circuit and the power conversion circuit. Electrically connected to the microprocessor, the microprocessor and the DC/DC conversion module are electrically connected, the DC/DC conversion module and the LED module are electrically connected; the LED module is also electrically connected with a working environment monitoring sensor, and works. The state sensor, the working environment monitoring sensor and the working state sensor are also electrically connected with the microprocessor for feeding back the working environment of the LED module and the working state thereof, so as to control and adjust the illumination of the LED lamp module by the microprocessor. .

As a further improvement of the implementation, the first light distribution lens is a hemispherical surface or an elliptical aspheric surface; the second light distribution lens is a peanut shell type asymmetric curved surface, including a main surface and a first surface of the main curved surface, Two glare eliminates the surface.

The connecting portion of the fixing component and the movable component adopts a circular end cap; the inner end wall of the circular end cap of the fixing component has axial strip teeth, and the inner wall of the circular end cap of the movable component is provided with the fixing component The axial teeth of the upper teeth are engaged; the two components mesh with each other in the horizontal direction.

The light exiting range of the main curved surface is located at the origin of the first light distribution lens, and the angle between the vertical axis Z is ±71°, and the horizontal X axis is angle 0. ~ ± 71. The angle between the angle and the Y axis is 0. ~ ± 30. The light-emitting range of the first and second glare-removing surfaces is located at an origin of the first light-collecting lens, and the angle between the vertical and the Z-axis is between ±71° and ±90°. The AC/DC power conversion circuit includes a lightning protection unit, an EMI unit, a first rectification and filtering unit, a power correction unit, an input overvoltage and undervoltage protection unit and a PFC unit, a lightning protection unit, an EMI unit, a first rectification and filtering unit, and a power correction unit. The circuit is electrically connected in sequence, and the first rectifying and filtering unit and the input overvoltage and undervoltage protection unit and the PFC unit are respectively electrically connected to output the rectified and filtered current; the power conversion circuit includes a second rectifying and filtering unit, a PWM controller and corresponding inputs thereof a voltage stabilizing loop, a short circuit protection circuit, a current limiting protection circuit and an output overvoltage protection circuit, wherein the output of the second rectifying and filtering unit is electrically connected to the DC/DC conversion module and the voltage stabilization loop, respectively, wherein the PWM controller input is from a control signal of the AC/DC power conversion circuit, the PWM controller output feedback is connected to the power correction unit in the AC/DC power conversion circuit, and a sampling circuit is connected between the second rectification filtering unit and the voltage stabilization loop. The output overvoltage protection circuit is electrically connected to the microprocessor to receive a control signal from the microprocessor; Sensor comprising a light control sensor; the operating state sensor comprises a thermal sensor.

The microprocessor is also coupled to a time sensor for time segmentation control.

The DC/DC conversion module includes at least four BUCK-type PWM DC/DC conversion circuits, and the conversion circuits are electrically connected to the LED lamps in the LED lamp module in one-to-one correspondence.

Compared with the prior art, the beneficial effects of the present invention are:

1. It can adapt to various road lighting situations; Compared with the structure in which the installation position of the existing LED street lamp is not adjustable, the technical solution of the present invention changes the installation position of the LED street lamp into a structure in which the fixed component and the movable component are combined, two components For the active connection, the LED street lamp body can adjust the pitch angle arbitrarily in the vertical direction, and can be directly installed on the lamp post without the lamp arm, thereby adjusting the area where the LED street lamp illuminates the road surface, and adapts to various road lighting conditions.

2. The adjustment structure is simple and convenient to install; the technical solution of the invention only adds an active component to the installation part of the LED street lamp, that is, realizes the pitch angle adjustment function of the LED street lamp, the structure is simple, and one end of the movable component and the street lamp pole can be connected According to the different diameters, cross-sectional shapes and bending degrees of different lamp poles, it can adapt to different street light poles; and the upper surface of the LED street light body is provided with a groove with built-in terminal blocks, which is convenient for connection and installation.

3. The LED light-emitting efficiency is high; the technical scheme of the invention realizes two light distributions for the LED light, and can effectively eliminate the glare emitted horizontally from the LED light beam, and the light of the LED street light is matched into a large-angle uniform light, which is greatly Improve the efficiency of LED light output.

4, more environmentally friendly and energy-saving; the technical solution of the invention is equipped with a power conversion circuit with high power conversion efficiency, and provides a control circuit capable of feeding back the scene environment, which can adjust the light output of the LED street lamp according to the feedback on-site environmental conditions, realize the LED The intelligent control of street lamps makes LED street lights more environmentally friendly and energy efficient. DRAWINGS

1 is a schematic axial projection view of an LED street lamp with adjustable illumination angle according to the present invention;

2 is a schematic projection view of the LED street lamp opening the wiring cover with the adjustable illumination angle;

3 is a schematic exploded view of the LED street lamp with the adjustable illumination angle;

4 is a partially enlarged schematic view showing the fixed assembly and the movable assembly of the LED street lamp with adjustable illumination angle; FIG. 5 is a schematic projection view of the secondary light distribution lens of the LED street lamp with adjustable illumination angle according to the present invention; a front view of the secondary light distribution lens;

Figure 7 is a plan view of the secondary light distribution lens;

Figure 8 is a bottom view of the secondary light distribution lens;

9 is a schematic diagram of a mathematical model of light emitted by the secondary light distribution lens;

10 is a schematic diagram of a main surface mesh division in a light distribution surface of a second light distribution lens of the secondary light distribution lens; FIG. 11 is a glare elimination surface in a light distribution surface of the second light distribution lens of the secondary light distribution lens; FIG. 12 is a schematic diagram of a light distribution effect of a main curve X section in a second light distribution lens of the secondary light distribution lens; FIG. 13 is a glare in a second light distribution lens of the secondary light distribution lens; FIG. 14 is a circuit block diagram 1 of an LED street lamp with adjustable illumination angle according to the present invention; FIG.

Figure 15 is a circuit block diagram 2 of the LED street lamp with adjustable illumination angle;

Fig. 16 is a circuit diagram showing the specific implementation of the LED street lamp with adjustable illumination angle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the preferred embodiments shown in the accompanying drawings will be further described in detail. The technical solution of the present invention includes three specific embodiments, which are described as follows.

Embodiment 1 As shown in FIG. 1 , FIG. 3 and FIG. 4 , the LED street lamp capable of adjusting the illumination angle comprises the LED street lamp body 10 , the fixing component 20 and the movable component 30 ; the fixing component 20 - the end and the LED street lamp body 10 is fixedly connected, and the other end is provided with a connecting portion 201; the movable component 30-end is also provided with a connecting portion 301 and is movably connected with the connecting portion 201 of the fixing assembly. The connecting portion of the fixing component 20 and the movable component 30 preferably uses a circular end cap. The inner end wall of the circular end cap of the fixing component 20 has axial strip teeth 202, and the inner end wall of the circular end cap of the movable component 30 An axial strip tooth 302 is provided that engages the strip teeth 202 of the stationary assembly 20 to enable the two components to engage one another. When the fixing component 20 and the movable component 30 are connected, the pitch angles required by the LED street lamps are adjusted in advance, and then the two circular end cap strip teeth are engaged with each other, and the two circular end caps are locked by screws. When the illumination angle of the street lamp needs to be adjusted, it is only necessary to loosen the screws for fastening the two round end caps, and rotate the two components to adjust the angle of the LED street lamp body to the required angle, and then the strip teeth are meshed with each other and then locked. Complete the adjustment of the tilt angle of the LED street light. In this way, the LED street lamp body 10 can fix the assembly part of the assembly 20 and the movable component 30 as a fulcrum, that is, adjust the pitch angle of the LED street lamp, and the movable component. The other end of 30 is connected to the street light pole. The end of the movable component 30 connected to the lamppost can also be connected with different calibers and cross-sectional shapes according to the diameter and cross-sectional shape of the lamp post to adapt to different lampposts.

In order to visually observe the adjustment of the tilt angle of the LED street light, the cover body surface of any end cover of the circular end cover of the fixing component 20 and the movable component 30 may be provided with a scale 40 for identifying the pitch angle of the LED street lamp body, from the adjustment angle To the reference role.

As shown in Fig. 2, in order to make the wiring more convenient and convenient, a groove 101, a built-in terminal, and a cover wiring cover 102 are also provided on the upper surface of the LED street lamp body.

Embodiment 2: This embodiment is another LED street lamp with adjustable illumination angle formed on the basis of the specific embodiment 1. As shown in FIG. 1 to FIG. 4, the LED street lamp body 10, the fixing component 20, and the activity are included. The assembly 30 is fixedly connected to the LED street lamp body 10, and the other end is provided with a connecting portion 201; the movable component 30 is also provided with a connecting portion 301 at one end thereof, and is movably connected with the connecting portion 201 of the fixing component. The LED street lamp body 10 is tilted by the connection portion of the fixed component 20 and the movable component 30 as a fulcrum, and the other end is connected to the lamppost; the connecting part of the fixing component 20 and the movable component 30 are all provided with a circular end cap. The inner end wall of the circular end cap of the fixing assembly 20 has axial strip teeth 202, and the inner end wall of the circular end cap of the movable assembly 30 is provided with axial strip teeth 302 that mesh with the strip teeth on the fixing assembly 20. ; The two components mesh with each other. The cover body surface of the end cap of the fixed assembly 20 and the serrated circular end cap of the movable assembly 30 is provided with a scale 40 for identifying the pitch angle of the LED street lamp body.

The LED street lamp body 10 has an LED lamp module built therein, and a single LED lamp in the LED lamp module is equipped with a large angle secondary light distribution lens, as shown in FIG. 5 to FIG. 13 , the secondary light distribution lens includes a first light distribution lens 11 and a second light distribution lens 12, the first light distribution lens 11 is a hemispherical surface or an elliptical aspheric surface; and the second light distribution lens 12 is a peanut shell type asymmetric curved surface. The first surface and the second glare eliminating surface 122, 123 including the main curved surface 121 and the main curved surface; after the LED light beam is emitted from the first light distribution lens 11, the light beam is passed through the main curved surface 121 of the second light distribution lens 12 Projecting, the first and second glare eliminating curved surfaces 122, 123 are used to concentrate the glare beams generated by the LED lamps after passing through the first light distribution lens 11 and then project out from the main curved surface 121;

The light exiting range of the main curved surface 121 is located at the center of the bottom surface of the first light distribution lens 11, and is at an angle of ±71 in the vertical direction. , horizontal direction X axis angle 0. ~ ± 71. The angle between the angle and the Y axis is 0. ~ ± 30. The light-emitting range of the first and second glare-removing curved surfaces 123 is located at an origin of the first light-guiding lens 11 and an angle of ±71 in the vertical direction of the Z-axis. ~ ± 90. between.

The radius of curvature of the first light distribution lens 11 when it is a hemispherical surface is 3.4 mm, and the radius of curvature of the short axis when it is an elliptical aspherical surface is 3.4 mm. The bottom of the second light distribution lens 12 is provided with a card foot 124 having a height of 1.5 to 3 mm, which is disposed at both ends of the second light distribution lens 12, and at the same time, in the second installation. The base of the light distribution lens 12 is provided with a card slot adapted to the leg 124. In this embodiment, the LED street lamp body 1 pitch adjustment and the built-in LED lamp light adjustment can be formed in two steps to adjust the illumination angle.

Embodiment 3: This embodiment is an LED street lamp with adjustable light angle formed on the basis of the first embodiment and the second embodiment, the pitch angle adjustment of the LED street lamp body and the secondary light distribution lens structure of the LED lamp and The functions are the same as the specific embodiments 1 and 2, and the details are shown in the specific embodiments 1 and 2, and details are not described herein. Only the control circuit inside the LED street lamp is described, how the control circuit realizes the intelligent control adjustment of the LED street lamp.

As shown in FIG. 14 and FIG. 15, the LED street lamp body 10 has an AC/D power conversion circuit 51 and an electric power conversion circuit 52 electrically connected, and the power conversion circuit 52 is electrically connected to the LED lamp module 90. A microprocessor 53 and a DC/DC conversion module 54 are electrically connected between the conversion circuit 52 and the LED module 90. The AC/DC power conversion circuit 51 and the power conversion circuit 52 are electrically connected to the microprocessor 53. The microprocessor 53 and the DC/DC conversion module 54 are electrically connected, and the DC/DC conversion module 54 and the LED module 90 are electrically connected; the LED module 90 is also electrically connected with a working environment monitoring sensor 55 and a working state sensor. 56. The working environment monitoring sensor 55 and the working state sensor 56 are further electrically connected to the microprocessor 53 for feeding back the working environment of the LED module 90 and its working state, so as to be controlled and adjusted by the microprocessor 53. The illumination of the module 90.

The AC/DC power conversion circuit 51 includes a lightning protection unit 511, an EMI unit 512, a first rectification and filtering unit 513, a power correction unit 514, an input overvoltage and undervoltage protection unit 515, and a PFC unit 516, a lightning protection unit 511, an EMI unit 512, The first rectifying and filtering unit 513 and the power correcting unit 514 are sequentially and electrically connected. The first rectifying and filtering unit 513 is electrically connected to the input overvoltage and undervoltage protection unit 515 and the PFC unit 516 to output a rectified and filtered current. The power conversion circuit 52 The second rectification filtering unit 521, the PWM controller 522 and its corresponding input voltage stabilization loop 523, the short circuit protection circuit 524, the current limiting protection circuit 525 and the output overvoltage protection circuit 526, the second rectification filtering unit 521 output The PWM controller 522 inputs a control signal from the AC/DC power conversion circuit 51, and the PWM controller 522 outputs a feedback connection to the AC/DC power conversion circuit, which is electrically connected to the DC/DC conversion module 54 and the voltage stabilization loop 523, respectively. a power correction unit 514 in the 51, a sampling circuit is further connected between the second rectification filtering unit 521 and the voltage stabilization loop 523, and the input is The overvoltage protection circuit 526 is electrically connected to the microprocessor 53, to receive control signals from the microprocessor 53; the environment monitoring sensor 55 comprises a light control sensor 551; the operating condition sensor 56 comprises a thermal sensor 561.

The microprocessor 53 is also coupled to a time sensor 57 for time segmentation control.

The DC/DC conversion module 54 includes at least four BUCK-type PWM DC/DC conversion circuits, and the conversion circuits are electrically connected to the LED lamps in the LED lamp module 90 in one-to-one correspondence.

Figure 16 is a circuit diagram of a specific implementation of the specific embodiment.

The above content is a further detailed description of the present invention in combination with a specific preferred technical solution, and the present invention cannot be considered The specific implementation is limited to these descriptions. It is to be understood by those skilled in the art that the present invention may be construed as a plurality of simple derivations or substitutions without departing from the spirit and scope of the invention.

Claims

O 2012/097495 Claim PCT/CN2011/070311

1. An LED street lamp with adjustable illumination angle, comprising an LED street lamp body (10), characterized by: further comprising a fixing component (20) and a movable component (30); the fixing component (20) end and LED street light Ontology

(10) fixed connection, the other end is provided with a connecting portion (201); the movable component (30) is also provided with a connecting portion (301) at the end, and is movably connected with the connecting portion (201) of the fixing component to make the LED street light The body (10) has a pitch adjustment angle with a connection portion of the fixed component (20) and the movable component (30) as a fulcrum, and the other end is connected to the lamppost.

2. The LED street lamp with adjustable illumination angle according to claim 1, wherein: the fixing component

(20), the connecting part of the movable component (30) adopts a circular end cover; the inner end wall of the circular end cap of the fixing component (20) has axial strip teeth (202), and the circle of the movable component (30) The inner wall of the end cap is provided with axial strip teeth (302) that engage the strip teeth on the stationary assembly (20); the two components are intermeshing.

3. The LED street lamp with adjustable illumination angle according to claim 2, wherein: the fixing component

(20) The cover surface of either end of the serrated round end cap of the movable assembly (30) is provided with a scale (40) for identifying the pitch angle of the LED street lamp body.

4. The LED street lamp with adjustable illumination angle according to claim 1, wherein: the upper surface of the LED street lamp body (10) is provided with a recess (101), a built-in terminal, and a cover cover (102). ).

5. An LED street lamp capable of adjusting an illumination angle, comprising an LED street lamp body (10), the LED street lamp body (10) has an LED lamp module built therein, and a single LED lamp in the LED lamp module is equipped with a large angle two The secondary light distribution lens comprises a first light distribution lens (11) and a second light distribution lens (12) wrapped therebelow, characterized in that: further comprising a fixing component (20) and a movable component ( 30), one end of the fixing component (20) is fixedly connected to the LED street lamp body (10), and the other end is provided with a connecting portion (201); the movable component (30) is also provided with a connecting portion (301) at the end, and The connection part (201) of the fixed component is movably connected, so that the LED street lamp body (10) is tilted by the connection part of the fixed component (20) and the movable component (30), and the other end is connected with the lamp pole; The first light distribution lens (11) is a hemispherical surface or an elliptical aspheric surface; the second light distribution lens (12) is a peanut shell type asymmetric curved surface, including a main curved surface (121) and a first surface that engages the main curved surface. Two glare elimination surfaces (122, 123);

After the LED light beam is emitted from the first light distribution lens (11), the light beam is projected through the main curved surface (121) of the second light distribution lens (12), and the first and second glare elimination surfaces (122, 123) The glare beam generated by passing the LED lamp through the first light distribution lens (11) is concentrated and then cast from the main curved surface (121) O 2012/097495 Claim PCT/CN2011/070311 Shoot out; Form LED street light body (1) Pitch adjustment and built-in LED light output adjustment two ways to adjust the illumination angle.

6. The LED street lamp with adjustable illumination angle according to claim 5, wherein: the fixing component

(20), the connecting part of the movable component (30) adopts a circular end cover; the inner end wall of the circular end cap of the fixing component (20) has axial strip teeth (202), and the circle of the movable component (30) The inner wall of the end cap is provided with axial strip teeth (302) that engage the strip teeth on the stationary assembly (20); the two components engage each other in a horizontal direction.

7. The LED street lamp with adjustable illumination angle according to claim 5, wherein: the fixing component

The LED street lamp with adjustable illumination angle according to claim 5, wherein: the light exiting range of the main curved surface (121) is located at the center of the bottom surface of the first light distribution lens (11), in the vertical direction The Z-axis angle is ±71. Horizontal direction X axis angle 0. ~ ±71. The angle between the angle and the Y axis is 0. ~ ±30. The first and second glare-removing surfaces (123) have a light-emitting range with the first light-receiving lens (11) as an origin and an angle of ±71° to ±90° in the vertical Z-axis.

The LED street lamp with adjustable illumination angle according to claim 5, wherein the first light distribution lens (11) has a radius of curvature of 3.4 mm when it is a hemispherical surface.

The LED street lamp with adjustable illumination angle according to claim 5, wherein the first light distribution lens (11) has an elliptical aspherical surface with a minor axis radius of curvature of 3.4 mm.

The LED street lamp with adjustable illumination angle according to claim 5, wherein: the bottom of the second light distribution lens (12) is provided with a clamping leg (124) for mounting the second light distribution lens The base of (12) is provided with a card slot adapted to the leg (124).

The LED street lamp with adjustable illumination angle according to claim 9, wherein the height of the leg (124) is 1.5~3 mm.

13. An LED street lamp capable of adjusting an illumination angle, comprising an LED street lamp body (10), wherein the LED street lamp body (10) has an LED lamp module (90) built therein, and a single LED lamp in the LED lamp module (50) Equipped with a large-angle secondary light distribution lens, the secondary light distribution lens includes a first light distribution lens (11) and a second light distribution lens (12) wrapped around the same; the LED street light body (10) is built in The electrically connected AC/D power conversion circuit (51) and the power conversion circuit (52), the power conversion circuit (52) is electrically connected to the LED lamp module (90), and is characterized in that: further comprising a fixing component (20) , movable component (30), the fixed component (20) 2012/097495 Claim PCT/CN2011/070311 one end is fixedly connected to the LED street lamp body (10), and the other end is provided with a connecting portion (201); the movable component (30) is also provided with a connecting portion (301). And being movably connected with the connecting portion (201) of the fixing component, the LED street lamp body (10) is tilted by the connecting portion of the fixed component (20) and the movable component (30) as a fulcrum, and the other end is connected with the lamppost; The power conversion circuit (52) and the LED module (90) are also electrically connected between the microprocessor (53) and the DC/DC conversion module (54), the AC/DC power conversion circuit (51), and the power The conversion circuit (52) is electrically connected to the microprocessor (53), the microprocessor (53) and the DC/DC conversion module (54) are electrically connected, the DC/DC conversion module (54) and the LED module (90) electrical connection; the LED module (90) is also electrically connected with a working environment monitoring sensor (55), a working state sensor (56), the working environment monitoring sensor (55), the working state sensor (56) is also The microprocessor (53) is electrically connected to feedback the working environment of the LED module (90) and Operating state, in order to control and adjust the LED lamp module (90) emitting a microprocessor (53).

The LED street lamp with adjustable illumination angle according to claim 13, wherein: the first light distribution lens (11) is a hemispherical surface or an elliptical aspheric surface; and the second light distribution lens (12) is a peanut A shell-shaped asymmetric surface, including a main surface (121) and first and second glare-removing surfaces (122, 123) that engage the main surface. The LED street lamp with adjustable illumination angle according to claim 13, wherein: the connecting portion of the fixing component (20) and the movable component (30) are each provided with a circular end cap; the circle of the fixing component (20) The inner end wall of the end cap has an axial strip tooth (202), and the inner end wall of the circular end cap of the movable assembly (30) is provided with axial strip teeth that mesh with the strip teeth on the fixing assembly (20) ( 302); the two components mesh with each other in the horizontal direction.

The LED street lamp with adjustable illumination angle according to claim 13, wherein: the cover body surface of the end cover of the fixed component (20) and the movable component (30) is provided with A scale (40) that identifies the pitch angle of the LED street light body.

The LED street lamp with adjustable illumination angle according to claim 14, wherein: the main surface

The exit range of (121) is located at the origin of the first light distribution lens (11) and at the Z axis in the vertical direction. , horizontal direction X axis angle 0. ~ ±71. The angle between the angle and the Y axis is 0. ~ ±30. The light-emitting range of the first and second glare-removing curved surfaces (123) is located at the center of the bottom surface of the first light-guiding lens (11), and the angle between the vertical and the Z-axis is ±71° to ±90°. between.

The LED street lamp with adjustable illumination angle according to claim 13, wherein: the AC/DC power conversion circuit (51) comprises a lightning protection unit (511), an EMI unit (512), and a first rectification filtering unit (513). , 2012/097495 Claim PCT/CN2011/070311 Power Correction Unit (514), Input Overvoltage and Undervoltage Protection Unit (515) and PFC Unit (516), Lightning Protection Unit (511), EMI Unit (512), First Rectification The filtering unit (513) and the power correcting unit (514) are sequentially electrically connected, and the first rectifying and filtering unit (513) is electrically connected to the input overvoltage and undervoltage protection unit (515) and the PFC unit (516) respectively to output the rectified and filtered current. The power conversion circuit (52) includes a second rectification and filtering unit (521), a PWM controller (522) and a corresponding input voltage stabilization loop (523), a short circuit protection circuit (524), and a current limiting protection circuit ( 525) and an output overvoltage protection circuit (526), wherein the output of the second rectification filtering unit (521) is electrically connected to the DC/DC conversion module (54) and the voltage stabilization loop (523), respectively, the PWM controller ( 522) inputting a control signal from the AC/DC power conversion circuit (51), the PWM controller (522) output feedback is connected to a power correction unit (514) in the AC/DC power conversion circuit (51), the second rectification The filter unit (521) and the voltage stabilization loop (523) are also connected a sampling circuit, the output overvoltage protection circuit (526) is electrically coupled to the microprocessor (53) for receiving a control signal from the microprocessor (53); the operating environment monitoring sensor (55) includes a light control sensor ( 551); the working state sensor (56) includes a temperature control sensor (561).

The LED street light with adjustable illumination angle according to claim 13, characterized in that: the microprocessor (53) is further connected with a time sensor (57) for time segmentation control.

The LED street lamp with adjustable illumination angle according to claim 13, wherein: said DC/DC conversion module (54) comprises at least four BUCK-type PWM DC/DC conversion circuits, and said conversion circuit respectively The LED lights in the LED lamp module (90) are electrically connected one by one.