Multifunctional public chair solar photovoltaic charging device

Abstract

The invention discloses a multifunctional public chair solar photovoltaic charging device which comprises a supporting column, a solar panel, a flashing board, a first angle switching mechanism, a second angle switching mechanism, a battery and an electronic control unit. The solar panel is movably connected with the supporting column through the first angle switching mechanism, the solar panel is electrically connected with the battery, and the flashing boards are at least arranged on the two opposite sides of the solar panel and movably connected with the solar panel through the second angle switching mechanism. The solar panel is provided with raindrop sensors arranged in different directions in the circumferential direction, and the raindrop sensors, the first angle switching mechanism and the second angle switching mechanism are all electrically connected with the electronic control unit. The electronic control unit determines the direction of the maximum rainfall according to the rainfall sensed by the raindrop sensors and outputs a first control signal so as to drive the solar panel to deflect towards the direction of the maximum rainfall through the first angle switching mechanism. And the flashing board in the direction of the maximum rainfall is driven to deflect through the second angle switching mechanism. The rain shielding area can be expanded according to the dripping direction of raindrops, and the rainproof effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaics, and in particular to a multifunctional public seat solar photovoltaic charging device. Background Art

[0002] At present, there are more and more public facilities in our country, and public seats for people to rest are also spread all over the streets and parks.

[0003] Traditional public seats only serve as a resting place. Some public seats have solar panels laid on the surface of the chairs. When no one is sitting on them, the solar panels can be used to charge the public seats, giving them the functions of lighting and charging mobile phones.

[0004] However, the existing solar public seats only rely on solar panels for sunshade and rain protection, and the rain protection effect is not good. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a multifunctional public seat solar photovoltaic charging device, which can expand the rain shielding area according to the falling direction of raindrops and has a good rain protection effect.

[0006] In order to solve the above technical problems, the present invention provides a multifunctional public seat solar photovoltaic charging device, including a support column, a solar panel, a rain shield, a first angle switching mechanism, a second angle switching mechanism, a battery and an electronic control unit;

[0007] The solar panel is movably connected to the support column through the first angle switching mechanism, the solar panel is electrically connected to the battery, and the rain shield is at least arranged on two opposite sides of the solar panel and movably connected to the solar panel through the second angle switching mechanism;

[0008] The solar panel is provided with raindrop sensors arranged in different directions along the circumferential direction, and the raindrop sensors, the first angle switching mechanism, and the second angle switching mechanism are all electrically connected to the electronic control unit;

[0009] The electronic control unit determines the direction of the maximum rainfall according to the rainfall sensed by each raindrop sensor, and outputs a first control signal to drive the solar panel to deflect toward the direction of the maximum rainfall through the first angle switching mechanism, and to drive the rain shield to deflect in the direction of the maximum rainfall through the second angle switching mechanism.

[0010] As an improvement of the above solution, the solar panel is provided with photosensitive sensors arranged in different directions along the circumference, and the photosensitive sensors are electrically connected to the electronic control unit;

[0011] The electronic control unit determines the direction of the maximum light intensity according to the light intensity sensed by each of the photosensors, and outputs a second control signal to drive the solar panel to deflect toward the direction of the maximum light intensity through the first angle switching mechanism.

[0012] As an improvement of the above solution, when the electronic control unit determines the direction of the maximum light intensity based on the light intensity sensed by each of the photosensitive sensors, the second angle switching mechanism drives the rain shield in the direction of the maximum light intensity to deflect.

[0013] As an improvement of the above solution, in the first time sequence, the electronic control unit determines the direction of the maximum rainfall as the first direction according to the rainfall sensed by each raindrop sensor;

[0014] In the second time sequence, when the electronic control unit determines the direction of the maximum rainfall as the second direction according to the rainfall sensed by each raindrop sensor;

[0015] When the first direction is different from the second direction, the second angle switching mechanism drives the rain shield located in the first direction to reset.

[0016] As an improvement of the above solution, in the first time sequence, the electronic control unit determines the direction of the maximum light intensity as the first direction according to the light intensity sensed by each of the photosensitive sensors;

[0017] In the second timing sequence, when the electronic control unit determines the direction of the maximum light intensity as the second direction according to the light intensity sensed by each of the photosensitive sensors;

[0018] When the first direction is different from the second direction, the second angle switching mechanism drives the rain shield located in the first direction to reset.

[0019] As an improvement of the above scheme, the second angle switching mechanism is used to drive the rain shield to switch between a first position and a second position, the rain shield in the first position is at a first preset angle with the solar panel, and the rain shield in the second position is parallel or coplanar with the solar panel.

[0020] As an improvement of the above solution, a piezoelectric film is provided on the top of the rain shield, the piezoelectric film is electrically connected to the battery, and the piezoelectric film is used to convert potential energy into electrical energy.

[0021] As an improvement of the above solution, a lifting drive mechanism electrically connected to the electronic control unit is provided on the top of the support column, and when the angle between the solar panel and the horizontal plane is greater than 30°, the lifting drive mechanism drives the solar panel to descend.

[0022] As an improvement of the above scheme, it also includes a photosensor electrically connected to the electronic control unit, and the electronic control unit outputs a third control signal according to the light intensity sensed by the photosensor and a threshold state, so as to drive the solar panel to deflect according to a preset program through the first angle switching mechanism.

[0023] As an improvement of the above solution, it also includes a base plate arranged under the solar panel, the base plate is provided with a pressure sensor connected to the electronic control unit, and the support column is provided with at least one of a lighting fixture, a display, and a speaker connected to the electronic control unit.

[0024] The implementation of the present invention has the following beneficial effects:

[0025] The present invention provides a multifunctional public seat solar photovoltaic charging device. By arranging raindrop sensors in different directions along the circumference of the solar panel, the electronic control unit determines the main falling point and direction of the raindrops according to the number of raindrops measured by the raindrop sensors in each direction, and automatically adjusts the angle of the solar panel. The first angle switching mechanism drives the solar panel to deflect relative to the support column, so that the maximum angle between the solar panel and the falling direction of the raindrops is reduced, so as to increase the effective rain shielding area of ​​the solar panel; at the same time, the angle of the rain shield in the direction of the maximum rainfall is automatically adjusted, and the second angle switching mechanism drives the rain shield in the direction of the maximum rainfall to deflect, so as to increase the effective rain shielding area of ​​the rain shield, and fully expands the rain shielding area on the basis of the solar panel to achieve the best rain protection effect.

[0026] The electronic control unit determines the direction of the strongest sunlight (the direction closest to the direct sunlight) based on the light intensity values ​​measured by the photosensors in all directions, and automatically adjusts the angle of the rain shield. The second angle switching mechanism drives the rain shield to deflect relative to the solar panel, so that the rain shield and the angle of the rain shield in the direction of the maximum light intensity are automatically adjusted at the same time. The second angle switching mechanism drives the rain shield to deflect in the direction of the maximum light intensity to increase the effective shading area of ​​the rain shield, fully expanding the shading area on the basis of the solar panel to achieve the best shading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an embodiment of a multifunctional public seat solar photovoltaic charging device of the present invention;

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of the solar panel and one of the rain shields after deflection;

[0029] Figure 3 This is a schematic diagram of the electrical control principle when power is generated only by solar panels;

[0030] Figure 4 This is a schematic diagram of the electrical control principle when generating electricity through solar panels or through rain shields. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, the present invention provides an embodiment of a multifunctional public seat solar photovoltaic charging device, comprising a support column 1, a solar panel 2, a rain shield 3, a first angle switching mechanism, a second angle switching mechanism, a battery and an electronic control unit. Figure 2 The arrow in the figure indicates the direction of direct sunlight or the direction of falling raindrops.

[0033] In this embodiment, a seat plate 4 for people to rest is arranged below the solar panel 2. The seat plate 4 is preferably connected to the support column 1, and is symmetrically distributed on both sides of the support column 1, or symmetrically distributed around the support column 1.

[0034] In this embodiment, lighting fixtures are provided on the support column 1 or the solar panel 2 or the rain shield 3, and a display 5 and a speaker 6 are provided on the support column 1. Among them, the support column 1 is used to support components such as the solar panel 2, lighting fixtures, display 5, and speaker 6. A cavity is provided inside the support column 1, and the battery and the electronic control unit are preferably arranged in the cavity inside the support column 1. The battery is used to store the electric energy generated by the solar panel 2, and the electronic control unit is connected to the solar panel 2, the lighting fixture, the display 5, and the speaker 6, and is used to control the operation of the entire system, and is specifically responsible for managing the distribution of electric energy, the adjustment of the solar panel 2, and other intelligent control functions. The support column 1 is provided with a charging port 7 near the seat plate 4, which is convenient for users to charge mobile devices. The charging port 7 is preferably equipped with various types of charging cable interfaces, which are suitable for the charging needs of different devices.

[0035] In this embodiment, a photosensitive sensor electrically connected to the electronic control unit is preferably provided on the solar panel 2 or the rain shield 3, and a pressure sensor 8 connected to the electronic control unit is provided on the seat plate 4. When the pressure sensor 8 senses that the seat plate 4 is under pressure, the electronic control unit can automatically light up the lighting fixture at night, control the deployment of the awning on rainy days, and adjust the angle of the solar panel 2 on sunny days to maximize shading.

[0036] The display 5 and the speaker 6 are respectively arranged in the upper area of ​​the support column 1. The display 5 is used to play advertisements, public welfare propaganda or park broadcasts and other information, and the speaker 6 is used in conjunction with the display 5 to provide an audio output function.

[0037] The solar panel 2 described in this embodiment is movably connected to the support column 1 through the first angle switching mechanism, the solar panel 2 is electrically connected to the battery, the rain shield 3 is arranged along the circumference of the solar panel 2, and is movably connected to the solar panel 2 through the second angle switching mechanism.

[0038] Specifically, a bracket is provided at the bottom of the solar panel 2, and the rain shield 3 is provided corresponding to the raindrop sensor and is movably connected to the bracket. The rain shield 3 is made of a light-weight plate (such as an aluminum plate or a plastic plate), which will not exert excessive pressure on the bracket, thereby extending the service life of the product.

[0039] The solar panel 2 is provided with raindrop sensors arranged in different directions along the circumferential direction, and the raindrop sensors, the first angle switching mechanism, and the second angle switching mechanism are all electrically connected to the electronic control unit.

[0040] The number of the raindrop sensors is at least 4. When the number of the raindrop sensors is 4, the 4 raindrop sensors are respectively installed in four directions (such as east, west, south, and north).

[0041] The raindrop sensors are preferably distributed in a circular array on the solar panel 2. When the solar panel 2 is arranged horizontally, the sensing surface of each raindrop sensor forms a second preset angle with the horizontal plane.

[0042] The sensing surface of the raindrop sensor is responsible for directly contacting the raindrops and producing corresponding physical changes, such as changes in resistance, capacitance or light scattering. The raindrop sensor of this embodiment is preferably a capacitive raindrop sensor. The capacitive raindrop sensor is composed of two metal plates or electrodes. When raindrops fall on the electrodes, the medium between the plates is changed (from air to a mixture of water and air, etc.), thereby affecting the capacitance. The sensing surface of the capacitive raindrop sensor is the plane where the two electrodes are located. When raindrops touch this plane, the change in capacitance is detected by the sensor, which then determines whether raindrops have fallen and the number of raindrops.

[0043] The electronic control unit determines the direction of the maximum rainfall according to the rainfall sensed by each raindrop sensor, and outputs a first control signal to drive the solar panel 2 to deflect toward the direction of the maximum rainfall through the first angle switching mechanism, and drives the rain shield 3 to deflect in the direction of the maximum rainfall through the second angle switching mechanism.

[0044] The electronic control unit determines the main falling point and direction of raindrops according to the number of raindrops measured by raindrop sensors in various directions, and automatically adjusts the angle of the solar panel 2. The first angle switching mechanism drives the solar panel 2 to deflect relative to the support column 1, so that the maximum angle between the solar panel 2 and the falling direction of raindrops is reduced to increase the effective rain shielding area of ​​the solar panel 2; at the same time, the angle of the rain shield 3 in the direction of the maximum rainfall is automatically adjusted, and the second angle switching mechanism drives the rain shield 3 in the direction of the maximum rainfall to deflect to increase the effective rain shielding area of ​​the rain shield 3, thereby fully expanding the rain shielding area on the basis of the solar panel 2 and achieving the best rain protection effect.

[0045] It should be noted that the maximum angle between the solar panel 2 and the falling direction of raindrops in this embodiment refers to the obtuse angle formed by the solar panel 2 and the falling direction of raindrops, and "reducing the maximum angle between the solar panel 2 and the falling direction of raindrops" means reducing the obtuse angle formed by the solar panel 2 and the falling direction of raindrops. The solar panel 2 of this embodiment is movably connected to the support column 1 through the first angle switching mechanism, and the support column 1 is located at the center of the solar panel 2, so that the solar panel 2 and the rain shield 3 always surround the support column 1 to provide sun protection and rainproof.

[0046] The rain shield 3 of this embodiment is movably connected to the bracket of the solar panel 2 through the second angle switching mechanism, and the second angle switching mechanism drives the rain shield 3 to switch between the first position and the second position. The rain shield 3 in the first position is at a first preset angle with the solar panel 2, and the rain shield 3 is tilted downwardly from the solar panel 2. The rain shield 3 in the second position is parallel or coplanar with the solar panel 2. When the rain shield 3 is parallel to the solar panel 2, the rain shield 3 is located at the bottom of the solar panel 2.

[0047] When raindrops fall vertically, or the light intensity sensed by the photosensor does not exceed the threshold, or the light intensity sensed by the photosensor exceeds the threshold and the sunlight is directly directed downward, the rain shields 3 around the solar panel 2 remain in the first position, and the rain shields 3 are tilted downward to divert rainwater or reduce the scattering of sunlight.

[0048] When raindrops fall down at an angle due to the wind, the rain shield 3 in the direction of the maximum rainfall is switched from the first position to the second position by the second angle switching mechanism to increase the effective rain shield area of ​​the rain shield 3. At this time, the rain shield 3 in the direction other than the direction of the maximum rainfall remains in the first position, that is, the rain shield 3 in these directions is tilted downwardly from the solar panel 2.

[0049] In rainy weather, the drop sensors in each direction continuously sense the change of rainfall, and adjust the deflection direction of the solar panel 2 and the rain shield 3 in real time according to the change of the falling direction of raindrops. In the first time sequence, the electronic control unit determines the direction of the maximum rainfall as the first direction according to the rainfall sensed by each raindrop sensor; in the second time sequence, when the electronic control unit determines the direction of the maximum rainfall as the second direction according to the rainfall sensed by each raindrop sensor; when the first direction is different from the second direction, the second angle switching mechanism drives the rain shield 3 located in the first direction to reset. The rain shield 3 in the direction other than the maximum rainfall is kept in the first position, that is, the rain shield 3 in these directions is tilted downwardly from the solar panel 2, which can effectively block and reduce the raindrops falling near the seat plate 4 when the wind direction changes instantly.

[0050] The first angle switching mechanism of this embodiment can be set as an oil cylinder, a first air cylinder or a first electric push rod, the fixed end of the oil cylinder, the first cylinder or the first electric push rod is fixed to the support column 1, and the driving end is connected to the bracket of the solar panel 2. The second angle switching mechanism can be set as a second air cylinder or a second electric push rod, the fixed end of the second cylinder or the second electric push rod is fixed to the bracket of the solar panel 2, and the driving end is connected to the rain shield 3. The first angle switching mechanism, the second angle switching mechanism, and the rain shield are all set accordingly. The first angle switching mechanism and the second angle switching mechanism can also be set to other driving modes.

[0051] Preferably, a lifting drive mechanism electrically connected to an electronic control unit is provided on the top of the support column 1. When the solar panel 2 is deflected to an angle greater than 30° with the horizontal plane, the lifting drive mechanism drives the solar panel 2 to descend, which can help reduce the intrusion of lateral wind and rain under the solar panel 2 and the rain shield 3.

[0052] Preferably, in this embodiment, a piezoelectric film is provided on the top of the rain shield 3, the piezoelectric film is electrically connected to a battery, and the piezoelectric film is used to convert potential energy into electrical energy.

[0053] Combination Figure 4 In this way, in rainy weather, the solar panel 2 and the rain shield 3 can not only provide shelter from rain, but the rain shield 3 can also convert the potential energy of raindrops into electrical energy and store it in the battery. In addition, the drop sensors in each direction continuously sense the change in rainfall, and the electronic control unit determines the direction of the maximum rainfall (i.e., the direction of the maximum potential energy) according to the rainfall sensed by each of the raindrop sensors, and outputs a first control signal to drive the solar panel 2 to deflect in the direction of the maximum rainfall through the first angle switching mechanism, and to drive the rain shield 3 in the direction of the maximum rainfall to deflect through the second angle switching mechanism. Driven by the second angle switching mechanism, the rain shield 3 in the direction of the maximum rainfall switches from the first position to the second position, helping to increase the conversion of potential energy into electrical energy by the piezoelectric film.

[0054] Preferably, in this embodiment, light sensors arranged in different directions are provided along the circumference of the solar panel 2, and the light sensors are electrically connected to the electronic control unit. The electronic control unit determines the direction of the maximum light intensity according to the light intensity sensed by each of the light sensors, and outputs a second control signal to drive the solar panel 2 to deflect toward the direction of the maximum light intensity through the first angle switching mechanism.

[0055] The number of the photosensitive sensors is at least 4. When the number of the photosensitive sensors is 4, the 4 photosensitive sensors are respectively installed in four directions (such as east, west, south, and north).

[0056] The photosensitive sensors are preferably distributed in a circular array on the solar panel 2. When the solar panel 2 is arranged horizontally, the sensing surface of each photosensitive sensor forms a third preset angle with the horizontal plane. The sensing surface of the photosensitive sensor is responsible for directly contacting light and producing corresponding physical changes.

[0057] The electronic control unit determines the direction of the strongest sunlight (the direction closest to the direct sunlight direction) based on the light intensity values ​​measured by the photosensors in various directions, and automatically adjusts the angle of the solar panel 2. The first angle switching mechanism drives the solar panel 2 to deflect relative to the support column 1, so that the maximum angle between the solar panel 2 and the direct sunlight direction is reduced, which increases the effective shading area of ​​the solar panel 2 on the one hand, and increases the intensity of light received by the solar panel 2 on the other hand, helping to improve the photoelectric conversion efficiency.

[0058] It should be noted that the maximum angle between the solar panel 2 and the direct direction of the sun in this embodiment refers to the obtuse angle formed by the solar panel 2 and the direct direction of the sun, and “reducing the maximum angle between the solar panel 2 and the direct direction of the sun” means reducing the obtuse angle formed by the solar panel 2 and the direct direction of the sun.

[0059] In addition, when the electronic control unit determines the direction of the maximum light intensity according to the light intensity sensed by each of the photosensitive sensors, the second angle switching mechanism drives the rain shield 3 in the direction of the maximum light intensity to deflect.

[0060] The electronic control unit determines the direction of the strongest sunlight (the direction closest to the direct sunlight) based on the light intensity values ​​measured by the photosensors in various directions, and automatically adjusts the angle of the rain shield 3. The second angle switching mechanism drives the rain shield 3 to deflect relative to the solar panel 2, so that the rain shield 3 automatically adjusts the angle of the rain shield 3 in the direction of the maximum light intensity. The second angle switching mechanism drives the rain shield 3 to deflect in the direction of the maximum light intensity to increase the effective shading area of ​​the rain shield 3, fully expanding the shading area on the basis of the solar panel 2 to achieve the best shading effect.

[0061] Driven by the second angle switching mechanism, the rain shield 3 in the direction of the maximum light intensity is switched from the first position to the second position to increase the effective sunshade area of ​​the rain shield 3. The rain shield 3 in the direction of the non-strongest light intensity remains in the first position, that is, the rain shield 3 is tilted downwardly from the solar panel 2.

[0062] In solar weather, the light sensors in each direction continuously sense the change of light intensity, and adjust the deflection direction of the solar panel 2 and the rain shield 3 in real time according to the change of the direct direction of sunlight. In the first time sequence, the electronic control unit determines the direction of the maximum light intensity as the first direction according to the light intensity sensed by each of the light sensors; in the second time sequence, when the electronic control unit determines the direction of the maximum light intensity as the second direction according to the light intensity sensed by each of the light sensors; when the first direction is different from the second direction, the second angle switching mechanism drives the rain shield 3 located in the first direction to reset. That is, in the first time sequence and the second time sequence, when the direct direction of sunlight changes, the direction of the maximum light intensity sensed by each of the light sensors will also change, and the rain shield 3 originally deflected to the direction where the rain shield 3 is not the direction of the maximum light intensity remains in the first position, that is, the rain shields 3 in these directions are tilted to the bottom of the solar panel 2, which can block and reduce the sunlight scattered near the seat plate 4.

[0063] Since the angle of direct sunlight to a specific location on the earth changes regularly, that is, the angle of direct sunlight is fixed for a specific time and place, a photosensor electrically connected to the electronic control unit can also be provided, and the parameters of the direct sunlight angle at that location can be set in advance. The electronic control unit outputs a third control signal based on the light intensity sensed by the photosensor and a threshold state. When the light intensity sensed by the photosensor exceeds the threshold, the solar panel 2 is driven to deflect according to a preset program through the first angle switching mechanism, which can also improve the photoelectric conversion efficiency of the solar panel 2.

[0064] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A multifunctional public seat solar photovoltaic charging device, characterized in that: It includes a support column, a solar panel, a rain shield, a first angle switching mechanism, a second angle switching mechanism, a battery and an electronic control unit; The solar panel is movably connected to the support column through the first angle switching mechanism, the solar panel is electrically connected to the battery, and the rain shield is at least arranged on two opposite sides of the solar panel and movably connected to the solar panel through the second angle switching mechanism; The solar panel is provided with raindrop sensors arranged in different directions along the circumferential direction, and the raindrop sensors, the first angle switching mechanism, and the second angle switching mechanism are all electrically connected to the electronic control unit; The electronic control unit determines the direction of the maximum rainfall according to the rainfall sensed by each raindrop sensor, and outputs a first control signal to drive the solar panel to deflect toward the direction of the maximum rainfall through the first angle switching mechanism, and to drive the rain shield to deflect in the direction of the maximum rainfall through the second angle switching mechanism.

2. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: The solar panel is provided with photosensitive sensors arranged in different directions along the circumference, and the photosensitive sensors are electrically connected to the electronic control unit; The electronic control unit determines the direction of the maximum light intensity according to the light intensity sensed by each of the photosensors, and outputs a second control signal to drive the solar panel to deflect toward the direction of the maximum light intensity through the first angle switching mechanism.

3. The multifunctional public seat solar photovoltaic charging device according to claim 2, characterized in that: When the electronic control unit determines the direction of the maximum light intensity according to the light intensity sensed by each of the photosensitive sensors, the second angle switching mechanism drives the rain shield in the direction of the maximum light intensity to deflect.

4. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: In a first time sequence, the electronic control unit determines the direction of maximum rainfall as a first direction according to the rainfall sensed by each raindrop sensor; In the second time sequence, when the electronic control unit determines the direction of the maximum rainfall as the second direction according to the rainfall sensed by each raindrop sensor; When the first direction is different from the second direction, the second angle switching mechanism drives the rain shield located in the first direction to reset.

5. The multifunctional public seat solar photovoltaic charging device as claimed in claim 3, characterized in that: In a first time sequence, the electronic control unit determines the direction of the maximum light intensity as the first direction according to the light intensity sensed by each of the photosensitive sensors; In the second timing sequence, when the electronic control unit determines the direction of the maximum light intensity as the second direction according to the light intensity sensed by each of the photosensitive sensors; When the first direction is different from the second direction, the second angle switching mechanism drives the rain shield located in the first direction to reset.

6. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: The second angle switching mechanism is used to drive the rain shield to switch between a first position and a second position. The rain shield in the first position forms a first preset angle with the solar panel, and the rain shield in the second position is parallel or coplanar with the solar panel.

7. The multifunctional public seat solar photovoltaic charging device according to claim 1 or 3, characterized in that: A piezoelectric film is provided on the top of the rain shield. The piezoelectric film is electrically connected to a battery and is used to convert potential energy into electrical energy.

8. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: A lifting drive mechanism electrically connected to the electronic control unit is provided on the top of the support column. When the angle between the solar panel and the horizontal plane is greater than 30°, the lifting drive mechanism drives the solar panel to descend.

9. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: It also includes a photosensor electrically connected to an electronic control unit, and the electronic control unit outputs a third control signal according to the light intensity sensed by the photosensor and a threshold state, so as to drive the solar panel to deflect according to a preset program through the first angle switching mechanism.

10. The multifunctional public seat solar photovoltaic charging device according to claim 1, characterized in that: It also includes a seat plate arranged below the solar panel, on which a pressure sensor connected to the electronic control unit is provided, and on the support column is provided at least one of a lighting fixture, a display, and a speaker connected to the electronic control unit.

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