An LED energy-saving street lamp with a large illumination range

Abstract

The present invention relates to the technical field of lighting facilities, and specifically relates to an LED energy-saving street lamp capable of large-range lighting, which includes a lamp post. One side of the top of the lamp post is provided with a lamp arm, and the end of the lamp arm is provided with a lamp body. The lamp body includes a lamp base, a lamp cover and a light source. Among them, the lamp base is fixedly connected to the end of the lamp arm. The lamp cover has a structure that penetrates up and down. The top of the lamp cover is sleeved outside the lamp base and the two are slidably matched vertically. A driving component for driving the lamp cover to slide up and down is further provided inside the lamp base. In the present invention, the lamp cover can move up and down relative to the light source to expand or reduce the irradiation range. At the same time, when the lamp cover moves up, a plurality of light-emitting components can all slide along the generatrix direction of the lamp cover, so that the area and brightness of the strong light area directly below the street lamp remain equivalent to the initial state.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting facilities, and particularly to an energy-saving LED street lamp capable of large-range lighting. Background Art

[0002] As an indispensable lighting facility on roads at night, street lamps include components such as lamp poles, lamp arms, lamp bodies, and circuit systems. Traditional street lamps mostly use wires to directly connect to the power grid, and this method requires burying wires at the edge of the road, so the laying cost is relatively high; there are also energy-saving street lamps powered by solar energy in the prior art, and the advantages are lower installation and maintenance costs, and more energy-saving and environmental protection.

[0003] In traditional technology, the lamp body of a street lamp includes a lamp shade and a light source, and the light source is fixedly arranged inside the lamp shade. This kind of lamp body structure is simple and the manufacturing cost is low, but the disadvantage is that the irradiation range cannot be adjusted and it cannot adapt to various lighting requirements; for example, in different seasons, different time periods, and different weather conditions, affected by factors such as environmental brightness and road surface humidity, it is often necessary to adjust the irradiation range of the street lamp to obtain a better lighting effect.

[0004] In the prior art, there are also patented technologies for adjusting the height of the lamp shade to change the irradiation range. For example, the patent with the publication number CN219530668U proposes an urban lighting street lamp with an adjustable irradiation range, including a lamp shade, a light bulb, and an irradiation range adjustment device. It controls the lamp shade to move up and down along the outside of the light bulb, thereby blocking the irradiation range of the light bulb to achieve the purpose of adjusting the irradiation range of the light bulb. However, although this method can adjust the irradiation range, when the lamp shade moves up and the irradiation range expands, since the luminous flux per unit area decreases, the illumination brightness in the area directly below the light bulb will also decrease accordingly. In order to meet various lighting requirements, we propose a different technical solution. Summary of the Invention

[0005] The purpose of the present invention is to provide an energy-saving LED street lamp capable of large-range lighting to solve the problems raised in the above background art.

[0006] The present invention is achieved through the following technical solutions: An energy-saving LED street lamp capable of large-range lighting includes a lamp pole, and a lamp arm is provided on one side of the top of the lamp pole. The end of the lamp arm is provided with a lamp body, and the lamp body includes a lamp base, a lamp shade, and a light source;

[0007] Wherein, the lamp base is fixedly connected to the end of the lamp arm, the lamp shade has a structure that penetrates up and down, the top of the lamp shade is sleeved outside the lamp base and the two are in sliding fit in the vertical direction, and a driving component for driving the lamp shade to slide up and down is further provided inside the lamp base;

[0008] The light source includes a base plate and a number of light-emitting components. The base plate is fixedly arranged on the bottom surface of the lamp holder. The number of light-emitting components are radially movably arranged on the bottom surface of the base plate, and there is a sliding fit between the number of light-emitting components and the base plate along the radial direction of the base plate. There is also a sliding fit between the number of light-emitting components and the lamp shade along the generatrix direction of the lamp shade.

[0009] Optionally, a number of slide rails are radially arranged on the bottom surface of the base plate. The number of slide rails are distributed along the radial direction of the base plate. The number of slide rails correspond to the number of light-emitting components one by one, and the light-emitting components are in sliding fit with the corresponding slide rails.

[0010] Optionally, the light-emitting component includes a sector plate, and a number of LED lamp bead plates are arranged on the bottom surface of the sector plate.

[0011] Optionally, a number of guide rods are arranged on the inner wall of the lamp shade along its generatrix direction. The number of guide rods correspond to the number of light-emitting components one by one. A linear bearing is penetrated through the sector plate, and the guide rod penetrates through the linear bearing on the corresponding sector plate.

[0012] Optionally, a hinge seat is further arranged on the bottom surface of the sector plate. A number of LED lamp bead plates located on the same sector plate are all hingedly arranged with the corresponding hinge seat.

[0013] Optionally, a driven column is arranged on the top surface of the LED lamp bead plate. An arc-shaped opening for the driven column to pass through is penetrated through the sector plate. A driving groove corresponding to the driven column one by one is further opened on the bottom surface of the base plate. The top end of the driven column is movably embedded in the driving groove;

[0014] When the driven column is located in the driving groove and close to the center of the base plate, a number of LED lamp bead plates are in a combined state;

[0015] When the driven column is located in the driving groove and far from the center of the base plate, a number of LED lamp bead plates are in a dispersed state.

[0016] Optionally, a sliding opening distributed vertically is opened on the side wall of the lamp holder. A displacement block is slidably arranged in the sliding opening, and the displacement block is fixedly connected to the top of the lamp shade.

[0017] Optionally, the driving component includes a driving motor and a lead screw. The driving motor is fixedly arranged on the inner top surface of the lamp holder. The output shaft of the driving motor is coaxially connected to the lead screw. A lifting frame is threadedly connected to the outside of the lead screw, and the lifting frame is fixedly connected to the displacement block.

[0018] Optionally, a rain shield is arranged on the outer side of the top surface of the lamp holder.

[0019] Optionally, a photovoltaic power generation component is arranged at the top end of the lamp post. The light source and the driving component are both electrically connected to the photovoltaic power generation component.

[0020] Compared with the prior art, the present invention provides an LED energy-saving street lamp capable of large-range illumination, having the following beneficial effects:

[0021] In the present invention, the lampshade can move up and down relative to the light source to expand or reduce the illumination range. At the same time, when the lampshade moves upward, several light-emitting components can all slide along the generatrix direction of the lampshade, so that the area and brightness of the strong light area directly below the street lamp remain equivalent to the initial state, which helps to make the road surface condition clear in the area directly below the street lamp, thus better assisting drivers and pedestrians in judging the road conditions.

[0022] The light-emitting components in the present invention include several LED lamp bead boards. When the lampshade moves upward and the illumination range expands, several LED lamp bead boards can also be correspondingly dispersed, so that the LED lamp beads are evenly distributed in the lampshade, which not only helps to make the road surface brightness uniform, but also helps the driver to more clearly observe the road conditions, traffic signs and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the illumination range varying with the height of the lampshade;

[0024] Figure 2 Schematic diagram of the structure of the present invention;

[0025] Figure 3 Schematic diagram of the lamp body structure of the present invention;

[0026] Figure 4 Cross-sectional view of the lamp body structure of the present invention;

[0027] Figure 5 Another cross-sectional view of the lamp body structure of the present invention;

[0028] Figure 6 Cross-sectional view of the light source structure of the present invention;

[0029] Figure 7 Schematic diagram of the light-emitting components in the closed state of the present invention;

[0030] Figure 8 Schematic diagram of the light-emitting components in the dispersed state of the present invention;

[0031] Figure 9 Schematic diagram of the seat plate structure of the present invention;

[0032] Figure 10 Schematic diagram of the light-emitting component structure of the present invention.

[0033] In the figure: 100, lamp post; 200, lamp arm; 300, lamp base; 301, sliding opening; 302, displacement block; 303, rain shield; 400, lamp cover; 401, guide rod; 500, light source; 501, seat plate; 502, light-emitting component; 5021, sector plate; 5022, LED lamp bead board; 5023, linear bearing; 5024, driven column; 5025, arc-shaped opening; 5026, hinge seat; 503, slide rail; 504, drive groove; 600, drive component; 601, drive motor; 602, lead screw; 603, lifting frame; 700, photovoltaic power generation component. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 , which is a schematic diagram of the illumination range changing with the height of the lamp cover. In this application, the area that each point of the light source can irradiate is defined as the strong light area, and the area that part of the light source can irradiate is defined as the weak light area. Obviously, the farther away from the strong light area, the less light can reach, so the weak light area shows a gradually darkening trend.

[0036] When the lamp cover rises or the light source descends, the areas of both the strong light area and the weak light area will expand. However, since the inner wall of the lamp cover itself is a reflective material, when the lamp cover rises relative to the light source, the luminous flux per unit area of the strong light area decreases, so the brightness of the strong light area will also decrease accordingly. That is to say, the brightness of the area directly below the street lamp will decrease accordingly, which is not conducive to drivers or pedestrians to judge the road conditions in the area directly below the street lamp.

[0037] To solve the above problems, the following technical solutions are proposed in this application:

[0038] Please refer to Figure 2 - Figure 10 , an LED energy-saving street lamp capable of large-range illumination, including a lamp post 100. One side of the top of the lamp post 100 is provided with a lamp arm 200. The end of the lamp arm 200 is provided with a lamp body, and the lamp body includes a lamp base 300, a lamp cover 400 and a light source 500; wherein, the lamp base 300 is fixedly connected to the end of the lamp arm 200. The lamp cover 400 has a vertically penetrating trumpet-shaped structure. The top of the lamp cover 400 is sleeved outside the lamp base 300 and the two are slidably matched in the vertical direction. The inside of the lamp base 300 is also provided with a drive component 600 for driving the lamp cover 400 to slide up and down; that is, the lamp cover 400 can slide up and down in the vertical direction.

[0039] Further, a sliding opening 301 distributed vertically is formed in the side wall of the lamp socket 300. A displacement block 302 is slidably arranged in the sliding opening 301, and the displacement block 302 is fixedly connected to the top of the lamp cover 400. A rain shielding edge 303 is arranged on the outer side of the top surface of the lamp socket 300 to prevent rainwater from passing through the sliding opening 301 and entering the interior of the lamp socket 300. The driving assembly 600 includes a driving motor 601 and a lead screw 602. The driving motor 601 is fixedly arranged on the inner top surface of the lamp socket 300. The output shaft of the driving motor 601 is coaxially connected to the lead screw 602. A lifting frame 603 is threadedly connected to the outside of the lead screw 602, and the lifting frame 603 is fixedly connected to the displacement block 302. Therefore, by controlling the rotation of the lead screw 602 by the driving motor 601, the up-and-down sliding of the lamp cover 400 can be controlled.

[0040] On the other hand, a photovoltaic power generation assembly 700 is arranged at the top end of the lamp post 100. The light source 500 and the driving assembly 600 are both electrically connected to the photovoltaic power generation assembly 700. Therefore, the technical solution of the present application does not require external power supply, and has the advantages of environmental protection and low maintenance cost.

[0041] The structure of the light source 500 is described in detail as follows:

[0042] The light source 500 includes a base plate 501 and a plurality of light emitting assemblies 502. The base plate 501 is fixedly arranged on the bottom surface of the lamp socket 300. The plurality of light emitting assemblies 502 are radially movably arranged on the bottom surface of the base plate 501, and a sliding fit is provided between the plurality of light emitting assemblies 502 and the base plate 501 along the radial direction of the base plate 501. A sliding fit is also provided between the plurality of light emitting assemblies 502 and the lamp cover 400 along the generatrix direction of the lamp cover 400. Among them, the base plate 501 is a circular plastic plate, and it is fixedly connected to the bottom surface of the lamp socket 300 by bolt connection.

[0043] A plurality of sliding rails 503 are radially arranged on the bottom surface of the base plate 501. The sliding rails 503 and the base plate 501 are integrally formed structures. The plurality of sliding rails 503 are distributed along the radial direction of the base plate 501. The plurality of sliding rails 503 correspond to the plurality of light emitting assemblies 502 one by one, and the light emitting assemblies 502 are slidably matched with the corresponding sliding rails 503. Specifically, the light emitting assembly 502 includes a sector plate 5021, and a plurality of LED lamp bead plates 5022 are arranged on the bottom surface of the sector plate 5021. Among them, the sector plate 5021 is slidably connected to the corresponding sliding rail 503.

[0044] A number of guide rods 401 are provided along the generatrix direction of the inner wall of the lamp shade 400. The number of guide rods 401 corresponds one by one to the number of light-emitting components 502. A linear bearing 5023 is penetrated through the sector plate 5021, and the guide rod 401 penetrates through the linear bearing 5023 on the corresponding sector plate 5021. Therefore, the sector plate 5021 can slide axially along the guide rod 401, that is, the distance between the outer edge of the sector plate 5021 and the inner wall of the lamp shade 400 always remains the same.

[0045] In this embodiment, when the driving assembly 600 controls the lamp shade 400 to rise, since the position height of the light source 500 always remains unchanged, and the distance between the sector plate 5021 and the inner wall of the lamp shade 400 always remains the same, therefore, under the action of the guide rod 401, the number of light-emitting components 502 will move along the slide rail 503 towards the side away from the center of the seat plate 501, and at this time, the number of light-emitting components 502 is in a dispersed state.

[0046] It is worth mentioning that in this embodiment, the inner wall of the lamp shade 400 is made of a reflective material, which is beneficial to improving the light utilization rate and enhancing the lighting uniformity. In the traditional technology, when the lamp shade 400 rises and the light source 500 remains unchanged, although the irradiation range of the light source 500 will also expand, the area of the strong light region irradiated by the light source 500 on the ground will also expand, and the brightness of this strong light region will decrease. In the technical solution of this embodiment, as the lamp shade 400 rises, first, the irradiation range of the light source 500 is expanded. However, since the number of light-emitting components 502 will also spread outwards, the area and brightness of the strong light region irradiated by the light source 500 on the ground can remain equivalent to the initial state, so that the brightness of the strong light region always meets the lighting standard.

[0047] In another embodiment of the present application, a hinge seat 5026 is further provided on the bottom surface of the sector plate 5021, and a number of LED lamp bead plates 5022 located on the same sector plate 5021 are all hingedly arranged with the corresponding hinge seats 5026. It should be noted that the LED lamp bead plate 5022 includes a rigid substrate, a PCB board, and LED lamp beads. Among them, the rigid substrate is made of plastic material, the PCB board is fixed to the bottom surface of the rigid substrate, and conductive circuits are printed on its surface for connecting each LED lamp bead and other electronic components to provide a path for current and realize the control and drive of the LED lamp beads. The LED lamp beads are installed at corresponding positions on the PCB board. Specifically, in this embodiment, the rigid substrate is strip-shaped, and one end of the rigid substrate is hingedly arranged with the hinge seat 5026.

[0048] Further, a driven column 5024 is provided on the top surface of the LED lamp bead board 5022. An arc-shaped opening 5025 for the driven column 5024 to pass through is formed through the fan-shaped plate 5021. A driving groove 504 corresponding to the driven column 5024 one by one is further formed on the bottom surface of the seat plate 501. The top end of the driven column 5024 is movably embedded in the driving groove 504. When the driven column 5024 is located in the driving groove 504 and close to the center of the seat plate 501, several LED lamp bead boards 5022 are in a combined state. When the driven column 5024 is located in the driving groove 504 and away from the center of the seat plate 501, several LED lamp bead boards 5022 are in a dispersed state.

[0049] Specifically, when several light-emitting components 502 are in a closed state, several driven columns 5024 are all embedded in the driving groove 504 and close to the center of the seat plate 501. When the lamp cover 400 rises to a state where several light-emitting components 502 are in a dispersed state, the light-emitting components 502 will slide outwards along the slide rail 503. At this time, the driven column 5024 moves to the driving groove 504 and away from the center of the seat plate 501, and several LED lamp bead boards 5022 are in a dispersed state. The function is to make the distribution of LED lamp beads more uniform, that is, it helps to make the illumination area of the street lamp on the ground have uniform brightness.

[0050] It is worth mentioning that uniform light source brightness can provide a clear and consistent visual environment for road users, avoid visual fatigue and shadows caused by excessive brightness differences, and enable pedestrians and drivers to observe road conditions, traffic signs and the surrounding environment more clearly. At the same time, under uniform illumination, the boundaries of the road, lane lines and traffic facilities can be clearly outlined, which helps the driver to maintain the correct driving direction and reduces the possibility of deviating from the lane or misjudging the road conditions. For pedestrians, they can also walk more safely on the sidewalk or cross the road, reducing the risk of falling or colliding due to uneven light.

[0051] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED energy-saving street lamp capable of large-range illumination, comprising a lamp post (100), a lamp arm (200) is provided on one side of the top of the lamp post (100), and a lamp body is provided at the end of the lamp arm (200), and it is characterized in that: The lamp body includes a lamp base (300), a lamp cover (400) and a light source (500); Among them, the end of the lamp base (300) is fixedly connected to the lamp arm (200). The lamp cover (400) has a structure that penetrates up and down. The top of the lamp cover (400) is sleeved outside the lamp base (300) and the two are in sliding fit along the vertical direction. A driving component (600) for driving the lamp cover (400) to slide up and down is also provided inside the lamp base (300); The light source (500) includes a base plate (501) and a number of light-emitting components (502). The base plate (501) is fixedly arranged on the bottom surface of the lamp base (300). A number of the light-emitting components (502) are radially movably arranged on the bottom surface of the base plate (501), and a number of the light-emitting components (502) are in sliding fit with the base plate (501) along the radial direction of the base plate (501). A number of the light-emitting components (502) are also in sliding fit with the lamp cover (400) along the generatrix direction of the lamp cover (400); The light-emitting component (502) includes a sector plate (5021), and a number of LED lamp bead plates (5022) are arranged on the bottom surface of the sector plate (5021); A number of guide rods (401) are arranged on the inner wall of the lamp cover (400) along its generatrix direction. A number of the guide rods (401) correspond to a number of the light-emitting components (502) one by one. A linear bearing (5023) is penetrated through the sector plate (5021), and the guide rod (401) penetrates through the linear bearing (5023) on the corresponding sector plate (5021); A hinge seat (5026) is also arranged on the bottom surface of the sector plate (5021). A number of the LED lamp bead plates (5022) located on the same sector plate (5021) are all hinged to the corresponding hinge seat (5026); A driven column (5024) is arranged on the top surface of the LED lamp bead plate (5022). An arc-shaped opening (5025) for the driven column (5024) to pass through is penetrated through the sector plate (5021). A driving groove (504) corresponding to the driven column (5024) one by one is also opened on the bottom surface of the base plate (501), and the top end of the driven column (5024) is movably embedded in the driving groove (504); When the driven column (5 ​ 2. The LED energy-saving street lamp capable of large-range illumination according to claim 1, wherein: ​ 3. The LED energy-saving street lamp capable of large-range illumination according to claim 1, wherein: A sliding opening (301) distributed vertically is formed in the side wall of the lamp socket (300), a displacement block (302) is slidably arranged in the sliding opening (301), and the displacement block (302) is fixedly connected to the top of the lamp cover (400).

4. The LED energy-saving street lamp capable of large-range illumination according to claim 3, wherein: The driving assembly (600) includes a driving motor (601) and a lead screw (602). The driving motor (601) is fixedly arranged on the inner top surface of the lamp socket (300), the output shaft of the driving motor (601) is coaxially connected to the lead screw (602), a lifting frame (603) is threadedly connected to the outside of the lead screw (602), and the lifting frame (603) is fixedly connected to the displacement block (302).

5. The LED energy-saving street lamp capable of large-range illumination according to claim 1, characterized in that: A rain shielding edge (303) is arranged on the outer side of the top surface of the lamp socket (300).

6. The LED energy-saving street lamp capable of large-range illumination according to claim 1, wherein: A photovoltaic power generation assembly (700) is arranged at the top end of the lamp post (100), and the light source (500) and the driving assembly (600) are both electrically connected to the photovoltaic power generation assembly (700).

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