Solar street lamp

Abstract

The utility model discloses a solar street lamp relates to the technical field of lamps and lanterns, including the lamp pole and a plurality of solar energy institutions, the lamp pole is parallel to the up and down direction, a plurality of solar energy institutions are arranged on the lamp pole along the up and down direction, and the light receiving surface of a plurality of solar energy institutions is perpendicular to the horizontal direction. In the morning, evening etc. When the solar elevation angle is small, the light of low angle oblique incidence and the incident angle of the light receiving surface of the vertical setting of solar energy institution significantly reduce, make the light more close to the front illumination state, the energy loss of traditional horizontal light receiving surface because of the large angle reflection is reduced greatly, effectively improve the photoelectric conversion efficiency of solar energy institution in the morning and evening period, and then be favorable to guarantee the illumination effect of solar street lamp in the morning and evening period.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a solar street light. Background Technology

[0002] Solar streetlights are outdoor lighting devices powered by solar energy, typically consisting of a light pole and a solar panel. Due to their independence from the traditional power grid, energy efficiency, environmental friendliness, ease of installation, and low operating costs, they are widely used in urban roads, rural highways, and other scenarios. The solar panel stores electricity during the day and supplies power at night to achieve automatic lighting, meeting nighttime travel needs. In existing technologies, the solar panel is generally located at the top of the light pole, with its light-receiving surface horizontally positioned. On the one hand, the solar panel at the top of the light pole is easily obstructed by buildings, trees, and other objects outdoors, exacerbating the problem of insufficient sunlight and thus reducing the photoelectric conversion efficiency. On the other hand, the sun moves along an east-west trajectory, and its altitude angle changes significantly with time. In the morning and evening, when the solar altitude angle is low, the angle of incidence (the angle between the ray and the normal to the light-receiving surface) between the horizontal light-receiving surface and the sunlight increases significantly. This causes the sunlight to hit the light-receiving surface at a large angle, resulting in a large amount of light loss due to reflection, which also leads to a decrease in the photoelectric conversion efficiency of the solar panel, thus affecting the lighting effect of the solar streetlight.

[0003] From a practical standpoint, mornings and evenings are peak times for urban commuting and rural travel, but these are precisely the times when natural light conditions are at their worst: the sun's altitude is extremely low, the sky is dim, and shadows are easily cast by buildings and trees. Insufficient street lighting directly increases the inconvenience for travelers. Traditional solar streetlights, with their solar panels mounted at the top of the pole and horizontally positioned, suffer from extremely low photoelectric conversion efficiency during these times, leading to a dilemma of needing to light up but lacking power. In the morning, when lights need to be turned on early, the energy storage batteries in the solar panels may be low on charge from the previous evening; conversely, in the evening, when lights need to be turned on promptly, the low light efficiency prevents timely replenishment, resulting in poor lighting performance for solar streetlights in the mornings and evenings. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a solar street light that ensures effective illumination in the morning and evening.

[0005] According to an embodiment of the present invention, a solar street light includes a lamp post and a plurality of solar energy mechanisms. The lamp post is parallel to the vertical direction, and the plurality of solar energy mechanisms are arranged on the lamp post in the vertical direction. The light-receiving surfaces of the plurality of solar energy mechanisms are all perpendicular to the horizontal direction.

[0006] It has at least the following beneficial effects:

[0007] Multiple solar panels are arranged vertically on the light pole, increasing the solar energy reception range. These panels are positioned at different heights on the pole, ensuring that even if a panel at one height is obstructed (such as tree branches or building corners), the others still receive continuous sunlight. This avoids the problem of poor lighting performance caused by a single panel being blocked, thus guaranteeing the photoelectric conversion efficiency of the solar panels and ensuring effective illumination during the morning and evening. In the early morning and late afternoon, when the sun's altitude angle is low, the angle of incidence between the low-angle, oblique sunlight and the vertically positioned light-receiving surface of the solar panels is significantly reduced. This makes the light closer to direct frontal illumination, greatly reducing energy loss caused by large-angle reflections on traditional horizontal light-receiving surfaces. This effectively improves the photoelectric conversion efficiency of the solar panels during these times, further ensuring effective illumination.

[0008] According to an embodiment of the present utility model, the solar energy mechanism of the solar street light includes a bracket and multiple photovoltaic panels. The light-receiving surfaces of the multiple photovoltaic panels are all perpendicular to the horizontal direction. The multiple photovoltaic panels are all disposed on the bracket, and the bracket is movably connected to the light pole so that the orientation and position of the multiple photovoltaic panels in the vertical direction can be adjusted.

[0009] According to an embodiment of the present invention, the solar energy mechanism of the solar street light includes four photovoltaic panels, which are circumferentially distributed along the axis of the light pole.

[0010] According to an embodiment of the present invention, the solar energy mechanism of the solar street light further includes a storage battery, which is electrically connected to a plurality of photovoltaic panels.

[0011] According to an embodiment of the present utility model, the solar street light has two mounting arms at the top of the light pole, the included angle formed by the two mounting arms is upward, each mounting arm is equipped with a lighting lamp, both lighting lamps are used for downward lighting, and both lighting lamps are electrically connected to the storage battery.

[0012] According to an embodiment of the present utility model, the solar street light has two clamping members on the bracket. The gap between the two clamping members is used for the light pole to pass through. The two clamping members can deform inward so as to clamp the light pole.

[0013] According to an embodiment of the present utility model, the solar energy mechanism of the solar street light further includes a nut and a bolt. Both clamping members are provided with through holes, the bolt passes through the two through holes, and the nut is threadedly connected to the bolt.

[0014] According to an embodiment of the present invention, the solar street light further includes a water storage tank and a water pump. The water storage tank is used to store rainwater. The solar energy mechanism also includes multiple spray heads, which are all mounted on the bracket. The multiple spray heads are respectively arranged corresponding to multiple photovoltaic panels. The water pump is used to pump the rainwater in the water storage tank to the multiple spray heads, so that the water sprayed from the multiple spray heads can clean the light-receiving surface of the multiple photovoltaic panels respectively.

[0015] According to an embodiment of the present utility model, the solar street light has a filter plate at the opening end of the water storage tank, which is used to prevent debris from falling into the water storage tank.

[0016] According to an embodiment of the present invention, in a solar street light, the filter plate is inclined so that debris falling on the filter plate can slide off the filter plate.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of a solar street light according to an embodiment of the present invention;

[0020] Figure 2 This is a top view of the solar energy structure;

[0021] Figure 3 This is a schematic diagram of the mounting arm and lighting fixtures;

[0022] Figure 4 This is a schematic diagram of the support frame, photovoltaic panels, and sprinkler heads;

[0023] Figure 5 This is a schematic diagram of the water storage tank and filter plate;

[0024] Icon labels:

[0025] Lamp post 100; mounting arm 110; lamp 120; base 130;

[0026] Solar panel 200; bracket 210; photovoltaic panel 220; clamping parts 230; nut 240; bolt 250; sprinkler head 260;

[0027] Water storage tank 300; filter plate 310. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] It should be explained that in this utility model, the horizontal direction refers to the direction perpendicular to the up and down direction, and the vertical direction is the up and down direction, which is perpendicular to the horizontal direction.

[0032] refer to Figure 1 This utility model discloses a solar street light, including a lamp post 100 and multiple solar energy mechanisms 200. The lamp post 100 is parallel to the vertical direction, and the multiple solar energy mechanisms 200 are arranged on the lamp post 100 along the vertical direction. The light-receiving surfaces of the multiple solar energy mechanisms 200 are all perpendicular to the horizontal direction.

[0033] Understandably, multiple solar panels 200 are arranged vertically on the light pole 100, increasing the solar energy reception range. With multiple solar panels 200 positioned at different heights on the light pole 100, even if a solar panel 200 at a certain height is obstructed (such as tree branches or building corners) and cannot fully receive sunlight, the other unobstructed solar panels 200 can still receive continuous sunlight. This avoids the problem of poor lighting performance caused by a single solar panel 200 being obstructed, ensuring the photoelectric conversion efficiency of the solar panels 200 and thus guaranteeing the lighting effect of the solar streetlights in the morning and evening. In the morning and evening, when the solar altitude angle is low, the angle of incidence between the low-angle oblique rays and the vertically positioned light-receiving surface of the solar panels 200 is significantly reduced, making the light closer to a frontal illumination state. This greatly reduces energy loss caused by large-angle reflections on traditional horizontal light-receiving surfaces, effectively improving the photoelectric conversion efficiency of the solar panels 200 in the morning and evening, thus ensuring the lighting effect of the solar streetlights in the morning and evening.

[0034] It should be explained that in this embodiment of the solar street light, multiple solar panels 200 are arranged vertically on the lamp post 100. Solar panels 200 at different heights can adapt to different levels of shading. For example, during the day, when the top of the lamp post 100 is blocked by tree branches, lower-height solar panels 200 can avoid this obstruction and receive sunlight normally. When low shrubs or buildings block the lower part of the lamp post 100, higher-height solar panels 200 can still receive sunlight normally, avoiding light interruption caused by a single location and ensuring that solar panels 200 are always operational during the day. Furthermore, in the morning and evening when the sun's altitude angle is low, the solar panels 200 of this embodiment can effectively absorb light, preventing light reflection and loss, thus maintaining high photoelectric conversion efficiency. At noon when the sun's altitude angle is high, multiple vertically arranged solar panels 200 can receive midday sunlight from different angles, compensating for the angle difference of a single light-receiving surface and ensuring that the solar panels 200 can stably receive sunlight even at noon. The multiple solar panels 200 arranged vertically solve the problem of insufficient sunlight caused by daytime shading. The light-receiving surface of the solar panel 200, which is perpendicular to the horizontal direction, can adapt to the changes in the solar altitude angle at different times of the day. This avoids the decrease in the photoelectric efficiency of the solar panel 200 due to the excessive solar incident angle at certain times, ensuring that the solar panel 200 can stably receive sufficient sunlight throughout the day, thereby ensuring the photoelectric conversion efficiency of the solar panel 200.

[0035] refer to Figure 2 The solar energy mechanism 200 includes a support frame 210 and multiple photovoltaic panels 220. The light-receiving surfaces of the photovoltaic panels 220 are all perpendicular to the horizontal direction. The photovoltaic panels 220 are mounted on the support frame 210, which is movably connected to the light pole 100, allowing adjustment of the orientation and vertical position of the photovoltaic panels 220. Understandably, during the installation of the solar energy mechanism 200 on the light pole 100, workers can adjust the vertical position of the support frame 210 on the light pole 100 according to obstructions in the installation environment. This allows the photovoltaic panels 220 to be fixed at a height avoiding obstructions via the support frame 210, preventing insufficient sunlight due to shading during subsequent operation and ensuring that the photovoltaic panels 220 can receive sufficient and stable sunlight over a long period. On the other hand, during the process of installing the solar energy mechanism 200 on the light pole 100, the workers can adjust the orientation of the bracket 210 and the multiple photovoltaic panels 220 on the bracket 210 according to the fixed trajectory of the sun in the installation scene, so that the light-receiving surface of the photovoltaic panel 220 can be adapted to the angle of the local sun position, thereby reducing the reflection and loss of sunlight and ensuring that the photoelectric conversion efficiency of the photovoltaic panel 220 can always be at a high level at different times.

[0036] refer to Figure 2 The bracket 210 is equipped with two clamping members 230. The gap between the two clamping members 230 allows the lamp post 100 to pass through. The two clamping members 230 can deform inward to clamp the lamp post 100. The solar energy mechanism 200 also includes a nut 240 and a bolt 250. Both clamping members 230 have through holes, and the bolt 250 passes through the two through holes. The nut 240 is threadedly connected to the bolt 250. The clamping members 230 are made of elastic metal. Understandably, during the installation of the solar energy mechanism 200, the bolt 250 passes through the through holes of the two clamping members 230, and the nut 240 is threadedly connected to the bolt 250 but not fully tightened. At this time, there is a certain gap between the two clamping members 230, and the clamping members 230 do not exert a fixed clamping force on the lamp post 100, allowing the bracket 210 to rotate and rise relative to the lamp post 100. Based on the shading conditions of the installation environment and the local solar cycle, the workers control the vertical movement of the bracket 210 and adjust the multiple photovoltaic panels 220 to an unshaded height. Next, the workers rotate the bracket 210 to adjust the orientation of the photovoltaic panels 220. After the height and orientation of the bracket 210 and the photovoltaic panels 220 are adjusted, the workers tighten the bolts 250. Under the action of the bolts 250 and nuts 240, the two clamping parts 230 undergo elastic deformation inward, causing the inner walls of the two clamping parts 230 to fit tightly against the outer wall of the light pole 100. This clamps and fixes the two clamping parts 230 to the outer wall of the light pole 100, completing the installation and fixing of the bracket 210, and ultimately fixing the height and orientation of the photovoltaic panels 220. In this embodiment of the utility model, the bracket 210 is provided with two clamping members 230 at both the upper and lower ends. Each clamping member 230 is provided with through holes at both ends. After the nut 240 and bolt 250 are tightened, the two clamping members 230 undergo elastic deformation inward, so that the two clamping members 230 are clamped and fixed on the lamp post 100. Further details will not be elaborated here.

[0037] refer to Figure 2 The solar energy mechanism 200 includes four photovoltaic panels 220, which are distributed circumferentially along the axis of the light pole 100. This arrangement creates a comprehensive light-receiving area, ensuring that at least one or more panels face or are nearly facing the sunlight regardless of the sun's position. This effectively prevents single-sided panels from receiving sunlight only at specific times, thus guaranteeing the photoelectric conversion efficiency of the solar energy mechanism 200. Furthermore, outdoor environments may contain diffused light (such as skylight on cloudy or overcast days). The four circumferentially distributed photovoltaic panels receive diffused light from different directions, increasing the total amount of diffused light received by the solar energy mechanism 200. This allows the solar energy mechanism 200 to maintain a certain level of photoelectric conversion efficiency even under poor lighting conditions.

[0038] In this embodiment of the utility model, reference is made to Figure 1 and Figure 3 The solar energy system 200 also includes a battery, which is electrically connected to multiple photovoltaic panels 220. The top of the light pole 100 has two mounting arms 110, forming an upward angle. Each mounting arm 110 is equipped with a lighting lamp 120, which provides downward illumination and is electrically connected to the battery. Understandably, during the day when there is sunlight, the four photovoltaic panels 220, distributed circumferentially along the axis of the light pole 100, absorb solar energy and convert it into electrical energy, which is then transferred to the battery for storage, reserving energy for nighttime lighting. When lighting is needed at night, the battery releases the stored energy to the lighting lamps 120, enabling them to start and provide road illumination. The lighting lamps 120 are common road lighting fixtures, and the photovoltaic panels 220 and batteries are common components in the solar energy field, which will not be further elaborated upon here.

[0039] refer to Figure 4 and Figure 5 The solar street light also includes a water storage tank 300 and a water pump. The water storage tank 300 is used to store rainwater. The solar energy mechanism 200 also includes multiple sprinkler heads 260, which are all mounted on a bracket 210. Each sprinkler head 260 is correspondingly positioned to one of multiple photovoltaic panels 220. The water pump is used to pump rainwater from the water storage tank 300 to the multiple sprinkler heads 260, so that the water sprayed from the multiple sprinkler heads 260 can clean the sun-receiving surfaces of the multiple photovoltaic panels 220. In this embodiment of the invention, the water pump is electrically connected to a battery, allowing the battery to supply power to the water pump. It is understood that during rainy weather, rainwater can fall into the water storage tank 300 and be collected by it. When cleaning is required on the sun-receiving surface of the photovoltaic panel 220, the water pump starts, extracts and pressurizes rainwater collected in the water storage tank 300, and delivers it through pipelines to multiple spray heads 260 on the support 210. The spray heads 260 spray the sun-receiving surfaces of multiple photovoltaic panels 220, washing away dust, leaves, pebbles, and other debris, thus cleaning the surface of the photovoltaic panels 220. After running for a period of time, the water pump stops, while the water storage tank 300 retains the remaining rainwater for future cleaning needs. The spray heads 260 periodically clean the sun-receiving surfaces of the photovoltaic panels 220, effectively preventing debris from affecting the photovoltaic conversion efficiency of the panels.

[0040] In this embodiment of the invention, the solar street light also includes a timer controller and a liquid level sensor. The solar unit 200 also includes a delivery pipeline assembly. The input end of the water pump extends into the water storage tank 300, and the output end of the water pump is connected to multiple spray heads 260 through the delivery pipeline assembly. The timer controller is electrically connected to the water pump and has preset time parameters for periodic spraying. In a preferred embodiment of the invention, the timer controller controls the water pump to start at 3:00 AM every Monday and Thursday, and controls the water pump to start for 30 seconds each time. During this period, the water pump synchronously pumps rainwater to all spray heads 260 of the solar unit 200, ensuring that the light-receiving surfaces of all photovoltaic panels 220 are cleaned. The timer controller is electrically connected to a battery, enabling the battery to supply power to the timer controller. A liquid level sensor is installed inside the water storage tank 300. The liquid level sensor is electrically connected to a timer controller and a battery so that the battery can supply power to the liquid level sensor. The liquid level sensor is used to detect the water level of rainwater in the water storage tank 300. The liquid level sensor has a preset minimum value, that is, when the water level is at the preset minimum value, the amount of rainwater in the water storage tank 300 is sufficient to meet the needs of one spraying. In this embodiment of the invention, the water pump can pump rainwater to the spray heads 260 in the multiple solar energy units 200.

[0041] When the timer controller reaches the preset periodic spraying time parameter, it first receives a signal from the liquid level sensor. If the water level in the storage tank 300 is higher than the preset minimum value, the timer controller sends a start command to the water pump. If the water level is lower than the preset minimum value, the timer controller pauses the spraying and maintains the original timing cycle. Before the next cycle, if the water level exceeds the preset minimum value, the timer controller controls the water pump to start to prevent the pump from running dry and being damaged. In this embodiment of the invention, the solar street light also includes a filter element, which is installed at the inlet of the delivery pipeline assembly. The filter element is used to filter impurities in the rainwater to prevent impurities from flowing into the delivery pipeline assembly. Both the filter element and the delivery pipeline assembly are common features in the field of liquid transportation and will not be described further here. Reference Figure 5 A filter plate 310 is provided at the open end of the water storage tank 300. The filter plate 310 is used to prevent debris from falling into the water storage tank 300. The filter plate 310 is inclined so that debris falling on the filter plate 310 can slide off. It should be noted that the open end of the water storage tank 300 is the upper end of the water storage tank 300. The filter plate 310 can directly prevent fallen leaves, branches, stones and other debris from falling into the water storage tank 300 during rainwater collection, thus avoiding clogging and failure of the sprinkler head 260. Because the filter plate 310 is inclined, debris falling on the filter plate 310 can slide off the filter plate 310 under its own weight or the scouring action of rainwater, thus achieving the purpose of self-cleaning of the filter plate 310 and reducing the maintenance frequency and difficulty of the filter plate 310. As one embodiment of this utility model, the filter plate 310 can be a common porous stainless steel plate. Reference Figure 1 The base 130 is provided at the bottom of the light pole 100, and the light pole 100 is connected to the ground through the base 130.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A solar street lamp, comprising a lamp pole (100) and a plurality of solar mechanisms (200), the lamp pole (100) being parallel to the up-down direction, characterized in that: a plurality of the solar mechanisms (200) are arranged on the lamp pole (100) along the up-down direction, and the light-receiving surfaces of the plurality of the solar mechanisms (200) are all perpendicular to the horizontal direction. The solar mechanism (200) comprises a support (210) and a plurality of photovoltaic panels (220), the light-receiving surfaces of the plurality of photovoltaic panels (220) are all perpendicular to the horizontal direction, the plurality of photovoltaic panels (220) are all arranged on the support (210), and the support (210) is movably connected to the lamp pole (100) so that the orientation and the position in the up-down direction of the plurality of photovoltaic panels (220) can be adjusted.

2. The solar street light according to claim 1, wherein: The solar mechanism (200) comprises four photovoltaic panels (220), and the four photovoltaic panels (220) are circumferentially distributed along the axis of the lamp pole (100).

3. The solar street light according to claim 2, wherein: The solar mechanism (200) further comprises a storage battery, and the storage battery is electrically connected to the plurality of photovoltaic panels (220).

4. The solar street light of claim 2, wherein: The top of the lamp pole (100) is provided with two mounting arms (110), the included angle formed by the two mounting arms (110) faces upward, the two mounting arms (110) are both provided with a lighting lamp (120), the two lighting lamps (120) are both used for downward illumination, and the two lighting lamps (120) are both electrically connected to the storage battery.

5. The solar street light according to claim 4, characterized in that: The support (210) is provided with two clamping pieces (230), the gap between the two clamping pieces (230) is used for allowing the lamp pole (100) to pass through, and the two clamping pieces (230) can be deformed inwardly so that the two clamping pieces (230) clamp the lamp pole (100).

6. The solar street light of claim 2, wherein: The solar mechanism (200) further comprises a nut (240) and a bolt (250), the two clamping pieces (230) are both provided with through holes, the bolt (250) is arranged in the two through holes, and the nut (240) is threadedly connected to the bolt (250).

7. The solar street light of claim 6, wherein: Further comprising a water storage tank (300) and a water pump, the water storage tank (300) is used for storing rainwater, the solar mechanism (200) further comprises a plurality of spray heads (260), the plurality of spray heads (260) are all arranged on the support (210), the plurality of spray heads (260) are respectively arranged correspondingly to the plurality of photovoltaic panels (220), and the water pump is used for pumping the rainwater in the water storage tank (300) to the plurality of spray heads (260) so that the water sprayed from the plurality of spray heads (260) can clean the light-receiving surfaces of the plurality of photovoltaic panels (220) respectively.

8. The solar street light of claim 2, wherein: The opening end of the water storage tank (300) is provided with a filter plate (310), and the filter plate (310) is used for preventing sundries from falling into the water storage tank (300).

9. The solar street light of claim 8, wherein: The filter plate (310) is arranged obliquely so that the sundries falling on the filter plate (310) can slide off the filter plate (310).

10. The solar street light of claim 9, wherein: ​

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