A photovoltaic power generation device capable of automatic switching

Abstract

The present invention discloses an automatically switchable photovoltaic power generation device, including a photovoltaic panel frame and a photovoltaic panel bracket, wherein a photovoltaic panel is arranged in the photovoltaic panel frame, a reset reel is arranged on the rear side of the photovoltaic panel frame, and a roll film is wound in the reset reel, a driving mechanism is arranged on the upper side of the photovoltaic panel frame, which is used to pull the roll film to unfold it on the upper surface of the photovoltaic panel, a liquid sensor and a controller are also arranged on the upper side wall of the photovoltaic panel frame, two induced draft brackets are symmetrically arranged on the front side of the photovoltaic panel frame, and an induced draft hood is arranged between the two induced draft brackets, and a plurality of power generation brackets are also arranged on the front side of the photovoltaic panel frame. The present invention relates to the field of photovoltaic power generation technology, and the photovoltaic power generation device can automatically switch the power generation mode and continuously perform compensatory power generation in windy and rainy weather to ensure that the photovoltaic power generation device is always in working condition.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation, and in particular to an automatically switching photovoltaic power generation device. Background Art

[0002] Photovoltaic is the abbreviation of solar photovoltaic power generation system, which is a new power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy.

[0003] The existing photovoltaic power generation devices are often located in unused areas such as barren mountains and slopes. The main extreme weather conditions in the project location are heavy rain and strong winds. When the photovoltaic system is supplying power to the load, if it encounters such weather, it can no longer continue to generate electricity through light, causing the photovoltaic power generation device to be stopped or semi-stopped.

[0004] To this end, we propose an automatically switching photovoltaic power generation device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose an automatically switching photovoltaic power generation device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A photovoltaic power generation device capable of automatic switching, comprising a photovoltaic panel frame and a photovoltaic panel bracket, wherein a photovoltaic panel is arranged in the photovoltaic panel frame, a reset reel is arranged at the rear side of the photovoltaic panel frame, and a roll film is wound around the reset reel, a driving mechanism is arranged at the upper side of the photovoltaic panel frame, and is used to pull the roll film to unfold it on the upper surface of the photovoltaic panel, and a liquid sensor and a controller are also arranged on the upper side wall of the photovoltaic panel frame;

[0008] Two induced air brackets are symmetrically arranged on the front side of the photovoltaic panel frame, and an induced air cover is arranged between the two induced air brackets. A plurality of power generation brackets are also arranged on the front side of the photovoltaic panel frame, and an impeller mechanism and a generator are respectively arranged on the side walls of the plurality of power generation brackets, and the impeller mechanism and the generator are connected through a rotating shaft;

[0009] The impeller mechanism includes an impeller housing, an air outlet, an air inlet, a liquid inlet, a liquid outlet and an impeller, the impeller is rotatably connected to the impeller housing, the air inlet is arranged on a side away from the photovoltaic panel frame, the air outlet is arranged on a side close to the photovoltaic panel frame, and the air inlet and the air outlet are in the same horizontal plane to form a wind channel, the liquid inlet and the air outlet are opened on the same side of the impeller housing, and the liquid inlet is located directly below the air outlet, the liquid outlet is opened on the lower side of the photovoltaic panel frame, and the liquid inlet and the liquid outlet form a liquid channel, and a connecting pipe is arranged between the air hood and the air inlet.

[0010] Preferably, the driving mechanism includes four driving brackets, a motor, two moving blocks, a screw and a guide rod, the four driving brackets are respectively fixedly arranged at the four corners of the photovoltaic panel frame, the front and rear driving brackets form a group, and a screw and a guide rod are respectively arranged between the two groups of driving brackets, the guide rod is fixedly arranged between the two driving brackets, and the screw is rotatably arranged between the two driving brackets, a motor is fixedly arranged on the side wall of one of the driving brackets, one end of the screw rotates through the side wall of the driving bracket at that place and is fixedly connected to the motor, one of the moving blocks is rotatably connected to the screw, and another of the moving blocks is slidably connected to the guide rod, a connecting roller is arranged between the two moving blocks, and one end of the film roll is connected to the side wall of the connecting roller.

[0011] Preferably, the roll film includes two first sub-roll films, a second sub-roll film and a gap. The two first sub-roll films are arranged on both sides of the second sub-roll film and are hot-melt connected and fixed to each other. The gap is opened at the head of the second sub-roll film and is located in the middle of the connecting roller.

[0012] Preferably, a windshield plate obliquely facing upward is provided on the front side wall of the connecting roller.

[0013] Preferably, a brush head is provided on the lower side wall of the connecting roller.

[0014] Preferably, the notch is arranged opposite to the opening position of the liquid inlet.

[0015] Preferably, dustproof nets are provided on the opening side walls of the air hood, the air outlet, the liquid inlet and the liquid outlet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides an impeller mechanism, a generator and other components, and provides a wind channel and a liquid channel in the impeller mechanism. Under the action of the dual power sources of wind and rain, the power generation mode can be switched and the compensation power generation can be continuously performed in windy and rainy weather, ensuring that the photovoltaic power generation device is always in working condition;

[0018] 2. The present invention provides a roll film, wherein the roll film is composed of two first sub-roll films and a second sub-roll film with greater elasticity, and a notch is provided at the head of the second sub-roll film, so that the collected rainwater forms an arc-shaped groove on the second sub-roll film under the action of its gravity, which facilitates the directional collection and flow of rainwater, thereby ensuring the driving ability of the rainwater-driven impeller;

[0019] 3. The present invention sets an oblique upward wind shield on the front side of the connecting roller. After the wind is blown out from the air outlet, it will flow obliquely upward along the direction of the wind shield to avoid blowing directly on the roll film and causing damage to it. In addition, when the wind is blown out from the air outlet, it is known from fluid mechanics that the wind flow rate in the space between the air outlet and the wind shield is fast, which leads to a small pressure in this space, and then it is beneficial for rainwater to flow out from the gap, so the flow rate of rainwater is increased, further improving the subsequent power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of an automatically switchable photovoltaic power generation device proposed by the present invention when the roll film is not pulled open;

[0021] Figure 2 This is a schematic structural diagram of a photovoltaic power generation device capable of automatic switching proposed by the present invention when the roll film is pulled open;

[0022] Figure 3 This is a structural schematic diagram of a photovoltaic panel frame from a rear side perspective of an automatically switching photovoltaic power generation device proposed by the present invention;

[0023] Figure 4 This is a structural schematic diagram of the connection relationship between the generator and the impeller mechanism of an automatically switching photovoltaic power generation device proposed by the present invention;

[0024] Figure 5 A schematic structural diagram of the connection relationship between an impeller mechanism, an induced draft hood and a generator of an automatically switchable photovoltaic power generation device proposed by the present invention;

[0025] Figure 6 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0026] In the figure:

[0027] 1. Photovoltaic panel frame; 2. Photovoltaic panel bracket; 3. Liquid sensor; 4. Controller;

[0028] 5. Driving mechanism; 501. Driving bracket; 502. Motor; 503. Moving block; 504. Screw rod; 505. Guide rod;

[0029] 6. Windshield; 7. Brush head;

[0030] 8. Roll film; 801. First sub-roll film; 802. Second sub-roll film; 803. Notch;

[0031] 9. Impeller mechanism; 901. Impeller housing; 902. Air outlet; 903. Air inlet; 904. Liquid inlet; 905. Liquid outlet; 906. Impeller;

[0032] 10. Generator; 11. Air induced bracket; 12. Air induced hood; 13. Rotating shaft; 14. Power generation bracket; 15. Connecting pipe; 16. Dust-proof net; 17. Connecting roller; 18. Reset reel. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference Figure 1-6 , a photovoltaic power generation device capable of automatic switching, comprising a photovoltaic panel frame 1 and a photovoltaic panel bracket 2, wherein a photovoltaic panel is arranged in the photovoltaic panel frame 1, a reset reel 18 is arranged on the rear side of the photovoltaic panel frame 1, and a roll film 8 is wound in the reset reel 9, it should be noted that the reset reel 18 is provided with a clockwork assembly inside, and in the process of rolling up the roll film 8, the reset reel 18 can automatically wind the roll film 8, a driving mechanism 5 is arranged on the upper side of the photovoltaic panel frame 1, for pulling the roll film 8 to unfold it on the upper surface of the photovoltaic panel, and a liquid sensor 3 and a controller 4 are also arranged on the upper side wall of the photovoltaic panel frame 1;

[0036] Two induced air brackets 11 are symmetrically arranged on the front side of the photovoltaic panel frame 1, and an induced air cover 12 is arranged between the two induced air brackets 11. A plurality of power generation brackets 14 are also arranged on the front side of the photovoltaic panel frame 1. Impeller mechanisms 9 and generators 10 are respectively arranged on the side walls of the plurality of power generation brackets 14, and the impeller mechanisms 9 and the generators 10 are connected via a rotating shaft 13.

[0037] The impeller mechanism 9 includes an impeller housing 901, an air outlet 902, an air inlet 903, a liquid inlet 904, a liquid outlet 905 and an impeller 906. The impeller 906 is rotatably connected to the impeller housing 901. The air inlet 903 is arranged on a side away from the photovoltaic panel frame 1, and the air outlet 902 is arranged on a side close to the photovoltaic panel frame 1. The air inlet 903 and the air outlet 902 are in the same horizontal plane to form a wind channel. The liquid inlet 904 and the air outlet 902 are opened on the same side of the impeller housing 901, and the liquid inlet 904 is located directly below the air outlet 902. The liquid outlet 905 is opened on the lower side of the photovoltaic panel frame 1, and the liquid inlet 904 and the liquid outlet 905 form a liquid channel. A connecting pipe 15 is arranged between the air hood 12 and the air inlet 903.

[0038] Reference Figure 1-3 as well as Figure 6 Specifically, the driving mechanism 5 includes four driving brackets 501, a motor 502, two moving blocks 503, a screw 504 and a guide rod 505. The four driving brackets 501 are respectively fixed at the four corners of the photovoltaic panel frame 1. The front and rear driving brackets 501 form a group. The screw 504 and the guide rod 505 are respectively arranged between the two groups of driving brackets 501. The guide rod 505 is fixedly arranged between the two driving brackets 501. The screw 504 is rotatably arranged between the two driving brackets 501. The motor 502 is fixedly arranged on the side wall of one of the driving brackets 501. One end of the screw 504 rotates through the side wall of the driving bracket 501 and is fixedly connected to the motor 502. One of the moving blocks 503 is rotatably connected to the screw 504, and the other moving block 503 is slidably connected to the guide rod 505. A connecting roller 17 is arranged between the two moving blocks 503, and one end of the film roll 8 is connected to the side wall of the connecting roller 17.

[0039] In windy weather, while the photovoltaic panel generates electricity normally, the wind will enter the impeller housing 901 through the wind induced hood 12 and the connecting pipe 15, and the wind will flow in the wind channel, thereby driving the impeller 906 therein to rotate. Under the driving action of the rotating shaft 13, the internal rotor of the generator 10 rotates, thereby generating wind power;

[0040] When windy and rainy weather occurs, first the liquid sensor 3 senses rain hitting the photovoltaic panel, and normal light power generation cannot be performed at this time. The motor 501 is started through the controller 4, and the threaded cooperation of the screw rod 504 and the moving block 503 causes the connecting roller 17 to pull the roll film 8 to move downward, so that the roll film 8 unfolds to shield the photovoltaic panel from rain, preventing rain from seeping into or corroding related photovoltaic components. The rainwater gathers on the roll film 8 and flows downward until it flows out from the notch 803 and enters the impeller housing 901 through the liquid inlet 904. The rainwater flows in the liquid channel and drives the impeller 906 clockwise. In addition, under the push of the wind force above, the impeller 906 is also provided with a driving force for clockwise rotation. The two are superimposed on each other to increase the rotation speed of the impeller 906 driving the shaft 13, thereby further improving the power generation efficiency of the generator 10. Both weather conditions can improve the power generation efficiency of photovoltaic power generation devices. At the same time, in windy and rainy weather, when the photovoltaic panels cannot generate electricity through sunlight, the power generation mode can be switched and compensatory power generation can be continued to ensure that the photovoltaic power generation device is always in working condition.

[0041] It should be further explained that the rotating shaft 13 is keyed to the bearing, and the bearing is a one-way bearing, so that the impeller 906 can only rotate clockwise from the air inlet 903 to the air outlet 902, which is superimposed on the driving force formed by the setting from the liquid inlet 904 to the liquid outlet 905, avoiding the opposite driving forces from forming rotational resistance.

[0042] Reference Figure 3 Specifically, the roll film 8 includes two first sub-roll films 801, a second sub-roll film 802 and a notch 803. The two first sub-roll films 801 are arranged on both sides of the second sub-roll film 802 and are hot-melt connected and fixed to each other. The notch 803 is opened at the head of the second sub-roll film 802 and is located in the middle of the connecting roller 17. Specifically, the notch 803 is arranged relative to the opening position of the liquid inlet 904.

[0043] The three independent first sub-rolling films 801 and second sub-rolling films 802 are connected together through the hot-melt process of the film, wherein the first sub-rolling film 801 is a right triangle, and the second sub-rolling film 802 is an isosceles triangle, and the second sub-rolling film 802 is located in the middle position of the two first sub-rolling films 801, and a notch 803 is provided at the head thereof, so that the gathered rainwater will flow from the notch 803 from top to bottom along the surface of the second sub-rolling film 802 to the impeller casing 901. In addition, the elasticity of the second sub-rolling film 802 is greater than that of the two first sub-rolling films 801, so that the gathered rainwater, under the action of its gravity, forms an arc-shaped groove in the second sub-rolling film 802, which is convenient for the directional gathering and flow of rainwater.

[0044] Reference Figure 1-3 Specifically, a windshield plate 6 is arranged on the front side wall of the connecting roller 17 and is inclined upward.

[0045] During operation, when the wind is blown out from the air outlet 902, it will flow obliquely upward along the direction of the wind shield 6 to avoid blowing directly on the roll film 8 and causing damage to it; in addition, when the wind is blown out from the air outlet 902, it is known from fluid mechanics that the wind speed in the space between the air outlet 902 and the wind shield 6 is fast, which leads to a low pressure in this space, and thus it is beneficial for rainwater to flow out from the gap 803, so the flow speed of rainwater is increased, further improving the subsequent power generation efficiency.

[0046] Reference Figure 1 Specifically, a brush head 7 is provided on the lower end side wall of the connecting roller 17.

[0047] When there is wind and rain, the connecting roller 17 moves downward under the action of the driving mechanism 5, and the surface of the photovoltaic panel can be cleaned of rainwater and dust under the action of the brush head 7.

[0048] Reference Figure 1-2 as well as Figure 4-5 A dustproof net 16 is provided on the opening side walls of the air hood 12 , the air outlet 902 , the liquid inlet 904 , and the liquid outlet 905 .

[0049] By providing dustproof nets 16 at the openings of the hood 12, the air outlet 902, the liquid inlet 904, and the liquid outlet 905, it is possible to effectively prevent foreign matter from entering the impeller housing 901 and affecting the rotation of the impeller 906 therein.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic power generation device capable of automatic switching, comprising a photovoltaic panel frame (1) and a photovoltaic panel support (2), wherein a photovoltaic panel is arranged in the photovoltaic panel frame (1), characterized in that: A reset reel (18) is arranged on the rear side of the photovoltaic panel frame (1), and a roll film (8) is wound around the reset reel; a driving mechanism (5) is arranged on the upper side of the photovoltaic panel frame (1) for pulling the roll film (8) so that it is unfolded on the upper surface of the photovoltaic panel; a liquid sensor (3) and a controller (4) are also arranged on the upper side wall of the photovoltaic panel frame (1); Two air induction brackets (11) are symmetrically arranged on the front side of the photovoltaic panel frame (1), and an air induction cover (12) is arranged between the two air induction brackets (11). A plurality of power generation brackets (14) are also arranged on the front side of the photovoltaic panel frame (1), and impeller mechanisms (9) and generators (10) are respectively arranged on the side walls of the plurality of power generation brackets (14), and the impeller mechanisms (9) and the generators (10) are connected via a rotating shaft (13); The impeller mechanism (9) comprises an impeller housing (901), an air outlet (902), an air inlet (903), a liquid inlet (904), a liquid outlet (905), and an impeller (906); the impeller (906) is rotatably connected to the impeller housing (901); the air inlet (903) is arranged on a side away from the photovoltaic panel frame (1); the air outlet (902) is arranged on a side close to the photovoltaic panel frame (1); and the air inlet (903) and the air outlet (906) are rotatably connected to the impeller housing (901). 02) are in the same horizontal plane to form a wind channel, the liquid inlet (904) and the air outlet (902) are opened on the same side of the impeller housing (901), and the liquid inlet (904) is located directly below the air outlet (902), the liquid outlet (905) is opened on the lower side of the photovoltaic panel frame (1), and the liquid inlet (904) and the liquid outlet (905) form a liquid channel, and a connecting pipe (15) is provided between the air hood (12) and the air inlet (903).

2. The photovoltaic power generation device capable of automatic switching according to claim 1, characterized in that: The driving mechanism (5) comprises four driving brackets (501), a motor (502), two moving blocks (503), a screw rod (504) and a guide rod (505); the four driving brackets (501) are respectively fixedly arranged at four corners of the photovoltaic panel frame (1); the front and rear two driving brackets (501) form a group; a screw rod (504) and a guide rod (505) are respectively arranged between the two groups of driving brackets (501); the guide rod (505) is fixedly arranged between the two driving brackets (501); the screw rod (504) is rotatably arranged between the two driving brackets A motor (502) is fixedly arranged on the side wall of one of the driving brackets (501), one end of the screw rod (504) rotates to penetrate the side wall of the driving bracket (501) there and is fixedly connected to the motor (502), one of the moving blocks (503) is rotationally connected to the screw rod (504), another of the moving blocks (503) is slidably connected to the guide rod (505), a connecting roller (17) is arranged between the two moving blocks (503), and one end of the film roll (8) is connected to the side wall of the connecting roller (17).

3. The photovoltaic power generation device capable of automatic switching according to claim 1, characterized in that: The roll film (8) comprises two first roll films (801), a second roll film (802) and a notch (803); the two first roll films (801) are arranged on both sides of the second roll film (802) and are connected and fixed to each other by hot melt; the notch (803) is opened at the head of the second roll film (802) and is located in the middle of the connecting roller (17).

4. The photovoltaic power generation device capable of automatic switching according to claim 3, characterized in that: A windshield plate (6) inclined upward is provided on the front side wall of the connecting roller (17).

5. The photovoltaic power generation device capable of automatic switching according to claim 3, characterized in that: A brush head (7) is provided on the side wall of the lower end of the connecting roller (17).

6. The photovoltaic power generation device capable of automatic switching according to claim 3, characterized in that: The notch (803) and the opening position of the liquid inlet (904) are arranged opposite to each other.

7. The photovoltaic power generation device capable of automatic switching according to claim 1, characterized in that: Dust-proof nets (16) are provided on the opening side walls of the air hood (12), the air outlet (902), the liquid inlet (904), and the liquid outlet (905).

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