A thin film battery device with rotatable self-protection function

Abstract

The present invention includes a photovoltaic power generation system, a rotating support system, a foundation, an inverter box transformer, a transmission line and an energy storage system. Among them, the photovoltaic power generation system uses advanced thin-film batteries to convert solar energy into electricity and connect it to the grid for power generation, and the rotating support system is used to fix the photovoltaic power generation system and can drive the photovoltaic thin-film batteries to rotate. The foundation supports and fixes the entire rotating support system, the inverter box transformer system converts the direct current generated by the photovoltaic power generation system into alternating current and boosts the voltage, the transmission line transmits the generated electricity to the grid, and the energy storage system stores the electricity generated by its own thin-film batteries to provide electricity for the rotating support system, making this system a "zero-carbon" environmentally friendly system. The device of the present invention reduces the failure and replacement frequency of photovoltaic power stations under harsh conditions, increases the service life of photovoltaic modules, and improves the economic benefits of photovoltaic power stations. The device is simple, convenient, fast and effective, reduces operation and maintenance expenses, eliminates manual operation, reduces labor costs, and ensures personnel safety.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic power generation applications, and in particular relates to a thin film battery device with a rotatable self-protection function. Background Art

[0002] Currently, solar cell technology is categorized into two main categories based on the semiconductor material used: crystalline silicon and thin-film. Crystalline silicon solar cells currently dominate large-scale applications and industrial production, but their high cost has limited their development. Thin-film cells have attracted widespread attention due to their numerous advantages over crystalline silicon and other solar cells. First, they offer excellent temperature stability. Cadmium telluride cells, for example, have a very good temperature coefficient, improving performance as temperature rises. In contrast, the conversion efficiency of crystalline silicon cells generally decreases with increasing temperature. Second, they offer excellent low-light performance. Thin-film cells can generate electricity even in the dim light of morning and afternoon. Furthermore, they are highly adaptable to various environments. Thin-film cells offer a high cost-performance ratio, resulting in lower costs.

[0003] In northwest my country, most large ground-mounted power stations are located in desert regions, where wind and sand are commonplace. Installing a photovoltaic power station in such a desert is highly susceptible to the effects of this wind and sand. It's well known that dust covers the modules, creating an obstruction that directly reduces their power output. Furthermore, long-term dust adhesion can corrode the modules. Furthermore, the persistent presence of dust can cause hot spots on the modules, further reducing their output power and even shortening their lifespan. The hot spot effect is irreversible for the modules, and once it occurs, there's no remedial measure, requiring module replacement. Otherwise, power generation will be impacted and potential safety hazards to the power station may arise.

[0004] The current conventional practice is to use traditional manual methods to carry out on-site cleaning operations, but due to the harsh conditions and high requirements for cleaning conditions, it will also increase maintenance personnel costs and safety issues. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention provides a thin-film battery device with a rotatable self-protection function. The device eliminates manual operation, realizes remote control of a fully automated process, and ensures the speed and effectiveness of self-protection, providing an efficient and safe photovoltaic module protection solution.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a thin film battery device with a rotatable self-protection function, comprising a flexible thin film battery pack, a support plate, a rotating motor, a rotating support structure and an energy storage battery; the support plate comprises a first support plate and a second support plate, the first support plate and the second support plate are both semi-cylindrical, the second support plate is an opaque hollow cylinder, the first support plate, the second support plate and the rotating support structure are coaxially arranged, the width of the first support plate is smaller than the width of the second support plate, and the height of the first support plate is smaller than the height of the second support plate; the output shaft of the rotating motor is connected to the rotating support structure, the first support plate is connected to the rotating support structure, the flexible thin film battery pack is bent and arranged and installed on the semi-cylindrical surface of the first support plate, the rotating motor is connected to the output end of the energy storage battery, and the power output end of the flexible thin film battery pack is connected to the power input end of the energy storage battery.

[0007] The foundation is made of reinforced concrete, the second supporting plate is directly fixedly connected to the foundation, and the rotating motor is installed on the foundation.

[0008] The first support plate is a hollow cylinder, the rotating support structure is a support frame structure or a plate-shaped structure, and the bottom end of the rotating support structure is connected to the output shaft of the rotating motor.

[0009] An inverter box is set at the power output end of the flexible thin-film battery pack and connected to the power grid through a transmission line.

[0010] A relay is connected between the inverter box and the flexible thin-film battery pack, and the relay is also connected to the input end of the energy storage battery.

[0011] The control signal input terminals of the relay and the rotating motor are connected to the output terminals of the photovoltaic station control system.

[0012] A brush or cleaning cotton is provided on the edge of the second supporting plate.

[0013] The first support plate, the second support plate and the rotating support structure are all made of aluminum alloy profiles.

[0014] The second support plate is further provided with a water spray port connected to a water source, and a drainage hole is provided at the bottom of the second support plate.

[0015] The working process is as follows: Normal working power generation stage: The flexible thin-film battery pack is exposed to the outside and is in a fully open state. When the external weather is good, the entire device is in normal working condition, receiving solar power generation, or charging the energy storage battery according to the power consumption demand;

[0016] In severe weather conditions: the photovoltaic power generation system cannot work normally, and the power storage battery supplies power to the rotating motor. The rotating motor drives the rotating support structure and the first support plate to rotate, so that the first support plate rotates, and the front of the flexible thin film battery pack rotates to the inside of the second support plate, so that the surface of the flexible thin film battery pack is not exposed to the outside, thereby achieving the purpose of self-protection.

[0017] Compared with the existing technology, the present invention has at least the following beneficial effects: the device described in the present invention can reduce the failure and replacement frequency of photovoltaic power stations under harsh conditions, increase the service life of photovoltaic modules, and improve the economic benefits of photovoltaic power stations. It has a simple structure and can achieve rapid and effective protection. It is driven by a motor, which helps to achieve remote operation and reduces labor costs. The energy of the motor is supplied by the energy storage battery, and no external power supply is required, achieving "zero carbon" environmental protection.

[0018] Furthermore, a brush or cleaning cotton is provided on the edge of the second support plate so as to clean the flexible thin film battery assembly when the second support plate is retracted.

[0019] Furthermore, the reinforced concrete foundation using existing mature technology has low design and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention.

[0021] Figure 2 Schematic diagram of the cross section of the structure of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the structure of the present invention in another state.

[0023] Figure 4 for Figure 3 Schematic cross-section of the state.

[0024] In the accompanying drawings, 1-photovoltaic power generation system, 2-rotating support system, 3-foundation, 4-inverter box transformer, 5-transmission line, 6-energy storage system, 11-thin-film battery, 211-first support plate, 212-second support plate, 22 rotating motor, 23 rotating support structure, 61 energy storage battery, 62 relay. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "one side", "one end", "one side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A thin film battery device with a rotatable self-protection function includes a flexible thin film battery pack 11, a support plate 21, a rotating motor 22, a rotating support structure 23 and an energy storage battery 61; the support plate 21 includes a first support plate 211 and a second support plate 212, the first support plate 211 and the second support plate 212 are both semi-cylindrical, and the second support plate 212 is an opaque hollow cylinder. The first support plate 211, the second support plate 212 and the rotating support structure 23 are coaxially arranged, and the first support plate 211 can rotate to the second support plate 2 12, and leave a gap; the diameter of the first support plate 211 is smaller than the diameter of the second support plate 212, and the height of the first support plate 211 is smaller than the height of the second support plate 212; the output shaft of the rotating motor 22 is connected to the rotating support structure 23, the first support plate 211 is connected to the rotating support structure 23, the flexible thin film battery pack 11 is bent and arranged and installed on the semi-cylindrical surface of the first support plate 211, the rotating motor 22 is connected to the output end of the energy storage battery 61, and the power output end of the flexible thin film battery pack 11 is connected to the power input end of the energy storage battery 61.

[0029] Refer to the attached Figure 1 The present invention provides a thin-film battery device with a rotatable self-protection function, including a photovoltaic power generation system 1, a rotating support system 2, a foundation 3, an inverter box 4, a transmission line 5 and an energy storage system 6. Among them, the photovoltaic power generation system 1 uses thin-film batteries to convert solar energy into electricity and grid-connected power generation, the rotating support system 2 is used to fixedly support the photovoltaic power generation system and can drive the photovoltaic thin-film battery to rotate; the foundation 3 supports and fixes the entire rotating support system 2, the inverter box 4 system converts the direct current generated by the photovoltaic power generation system 1 into alternating current and boosts the voltage, the transmission line 5 transmits the generated electricity to the power grid, and the energy storage system 6 stores the electricity generated by its own thin-film battery to provide power for the rotating support system 2, making this system a "zero-carbon" environmentally friendly system.

[0030] Specifically, the photovoltaic power generation system 1 power generation unit adopts a flexible thin film battery group 11, and the flexible thin film battery group 11 is bent and arranged on the rotating support system 2. The rotating support system 2 includes a support plate 21, a rotating motor 22 and a rotating support structure 23. The support plate 21 is divided into a first support plate 211 and a second support plate 212. The two front second support plates are combined 180° front and back to form an interlaced closed rotatable form. The first support plate 211 is arranged on the inner side and the second support plate 212 is on the outer side. A rotating motor 22 is installed at the bottom of the support plate 21. The rotating motor 22 drives the first support plate 211 to rotate through the rotating support structure 23. The first support plate 211 can rotate back and forth under the drive of the rotating motor 22 and rotate to the rear side of the second support plate 212.

[0031] The rotating support structure 23 is a support frame structure or a plate-like structure. The rotating support structure 23 is arranged on the inner side of the first support plate 211. The support frame structure includes a vertical rod and several horizontal connecting rods. The horizontal connecting rods are symmetrically distributed on both sides of the vertical rod. The horizontal connecting rods connect the first support plate 211 and the vertical rod; the vertical rod is connected to the output shaft of the rotating motor 22; the plate-like structure uses a plate, the bottom end of the plate is connected to the output shaft of the rotating motor 22, and the two sides of the plate are connected to the first support plate 211.

[0032] Foundation 3 is constructed of reinforced concrete and secured with reinforced concrete piles. Foundation 3 is directly and securely connected to second support plate 212, and motor 22 is mounted on foundation 3. The DC power generated by photovoltaic power generation system 1 is fed to inverter box 4, which converts the DC power into AC power and boosts the voltage. The AC end of transmission line 5 then transmits the boosted power to the grid.

[0033] The energy storage power system 6 includes an energy storage battery 61 and a relay 62. The relay 62 is connected between the inverter box 5 and the flexible thin film battery pack 11, and is connected to the input end of the energy storage battery 61. The output end of the energy storage battery 61 is connected to the rotating motor 22 of the rotating system to provide electrical energy for the motor rotation.

[0034] The working process of this device is as follows:

[0035] Normal working power generation stage: refer to the attached Figure 1 When the construction is completed, the photovoltaic thin-film power generation system is designed and placed according to the design drawings, and the flexible thin-film battery group 11 is exposed to the outside and is in a fully open state. When the outside weather is good, the entire device is in normal working condition, which can receive solar energy, and then convert it into direct current through the photoelectric effect. The direct current is then integrated through the inverter box 4 and the transmission line 5, and its electric energy is transmitted to the power grid; or according to the demand for electric energy consumption, the relay 62 can be remotely controlled at any time to be in another working mode, so that the electricity generated by the photovoltaic panel can charge the energy storage battery 61.

[0036] Severe weather stage: refer to the attached Figure 2 In severe weather such as sandstorms, rain and snow, the photovoltaic power generation system 1 cannot work normally. At this time, the power storage battery 61 provides positive power to the rotating motor 22, driving the first support plate 211 to rotate backward, so that the first support plate 211 can be rotated 180 degrees, so that the front of the flexible thin film battery group 11 covered thereon is rotated to the back, so that the film surface of the entire photovoltaic power generation system 1 is not exposed to the outside, thereby achieving the purpose of self-protection.

[0037] Recovery phase: When the bad weather passes, the power storage battery 61 provides reverse power to the rotating motor 22, driving the first support plate 211 to rotate forward, so that the flexible thin film battery pack 11 covered thereon returns to its original position. At this time, the photovoltaic power generation system 1 can continue to work normally.

Claims

1. A thin film battery device with a rotatable self-protection function, characterized in that: The invention comprises a flexible thin film battery pack (11), a support plate (21), a rotating motor (22), a rotating support structure (23) and an energy storage battery (61); the support plate (21) comprises a first support plate (211) and a second support plate (212); the first support plate (211) and the second support plate (212) are both semi-cylindrical; the second support plate (212) is a light-proof hollow cylinder; the first support plate (211), the second support plate (212) and the rotating support structure (23) are coaxially arranged; the width of the first support plate (211) is smaller than the width of the second support plate (212); the height of the first support plate (211) is smaller than the height of the second support plate (212); the output shaft of the rotating motor (22) is connected to the rotating support structure (23 ... semi-cylindrical; the second support plate (212) is semi-cylindrical; the first support plate (211) and the second support plate (212) are semi-cylindrical; the second support plate (212) is semi-cylindrical; the first support plate (211) and the second support plate (212) are semi-cylindrical A support plate (211) is connected to the rotating support structure (23); the flexible thin film battery pack (11) is arranged in a curved manner and mounted on the semi-cylindrical surface of the first support plate (211); the rotating motor (22) is connected to the output end of the energy storage battery (61); and the power output end of the flexible thin film battery pack (11) is connected to the power input end of the energy storage battery (61); the first support plate (211) is a hollow cylinder; the rotating support structure (23) is a support frame structure or a plate-shaped structure; the bottom end of the rotating support structure (23) is connected to the output shaft of the rotating motor (22); a brush or cleaning cotton is provided on the edge of the second support plate (212); a water spray port is also provided on the second support plate (212); the water spray port is connected to a water source; and a drainage hole is provided at the bottom of the second support plate (212).

2. The thin film battery device with rotatable self-protection function according to claim 1, characterized in that: The foundation (3) is made of reinforced concrete, the second support plate (212) is directly fixedly connected to the foundation (3), and the rotating motor (22) is installed on the foundation (3).

3. The thin film battery device with rotatable self-protection function according to claim 1, characterized in that: An inverter box (4) is provided at the power output end of the flexible thin-film battery pack (11), and is connected to the power grid via a power transmission line (5).

4. The thin film battery device with rotatable self-protection function according to claim 1, characterized in that: A relay (62) is connected between the inverter box (4) and the flexible thin film battery pack (11), and the relay (62) is also connected to the input end of the energy storage battery (61).

5. The thin film battery device with rotatable self-protection function according to claim 4, characterized in that: The control signal input terminals of the relay (62) and the rotating motor (22) are connected to the output terminal of the photovoltaic station control system.

6. The thin film battery device with rotatable self-protection function according to claim 1, characterized in that: The first support plate (211), the second support plate (212) and the rotating support structure (23) are all made of aluminum alloy profiles.

7. The thin-film battery device with a rotatable self-protection function according to claim 1, wherein the working process is as follows: Normal working power generation stage: the flexible thin film battery pack (11) is exposed to the outside and is in a fully open state. When the outside weather is good, the entire device is in a normal working state, receiving solar power generation, or charging the energy storage battery (61) according to the power consumption demand; In severe weather, the photovoltaic power generation system (1) cannot operate normally, the energy storage battery (61) supplies power to the rotating motor (22), and the rotating motor (22) drives the rotating support structure (23) and the first support plate (211) to rotate, so that the first support plate (211) rotates (180) degrees, and the front of the flexible thin film battery pack (11) rotates to the inside of the second support plate (212), so that the surface of the flexible thin film battery pack (11) is not exposed to the outside, thereby achieving the purpose of self-protection.

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