Photovoltaic balanced charging structure

Abstract

The utility model discloses a photovoltaic balanced type charging structure, which comprises a frame, a photovoltaic panel is arranged in the frame, battery cabins are arranged on two sides of the back surface of the photovoltaic panel, plastic end covers are arranged at two ends in the battery cabins, and the battery cabins and the plastic end covers are fixedly connected with the frame through fixing bolts. Batteries are arranged in the battery bins at equal intervals, the battery bin located on one side is provided with a connecting female head, the connecting female head is electrically connected with the batteries, and the battery bin located on the other side is provided with a connecting male head. The utility model relates to the technical field of photovoltaic charging and storage, and solves the problems that in the prior art, batteries are charged in a series charging mode in a photovoltaic mode, the phenomenon of fire catching caused by overcharging of the batteries is likely to occur, the requirement for the consistency of battery cells of energy storage batteries is high, and the battery capacities are very likely to be inconsistent after long-time use. And meanwhile, certain potential safety hazards exist when the batteries are placed indoors.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic charging and storage technology, specifically a photovoltaic equalization charging structure. Background Technology

[0002] Photovoltaic energy storage and charging (PV-GC) refers to an energy system that combines photovoltaic power generation, energy storage systems, and inverters. This system converts solar energy into electricity through photovoltaic power generation, which is then inverted into alternating current (AC) by an inverter to power household appliances. Excess electricity is stored in energy storage devices for use when needed. By integrating photovoltaic power generation systems, energy storage systems, and charging equipment, it achieves efficient utilization and storage of solar energy to meet electricity demand. The integrated PV-GC system not only improves energy efficiency but also promotes the use of renewable energy.

[0003] In existing technologies, photovoltaics use a series charging method to charge batteries, which can easily lead to overcharging and fires. Furthermore, it requires high consistency among the battery cells, and after prolonged use, inconsistent battery capacity can easily occur, resulting in battery imbalance. Additionally, placing batteries indoors poses certain safety hazards. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a photovoltaic equalization charging structure, which solves the problems of existing technologies where photovoltaics use series charging to charge batteries, which can easily lead to battery overcharging and fires. Furthermore, it requires high consistency of the battery cells, and after long-term use, inconsistent battery capacity can easily occur, resulting in battery imbalance. Additionally, placing the battery indoors poses certain safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic equalization charging structure, comprising a frame, a photovoltaic panel disposed inside the frame, battery compartments disposed on both sides of the back of the photovoltaic panel, plastic end caps disposed at both ends of the battery compartments, the battery compartments and plastic end caps being fixedly connected to the frame by fixing bolts, batteries being disposed equidistantly inside the battery compartments, a female connector disposed on one side of the battery compartment being electrically connected to the battery, and a male connector disposed on the other side of the battery compartment being electrically connected to the battery, and the female connector being electrically connected to the male connector.

[0006] Preferably, the battery is provided with a fiberglass tape on its exterior, a first pixel cotton covering layer is sleeved on the outer wall of the fiberglass tape, a second pixel cotton covering layer is sleeved on the outer wall of the first pixel cotton covering layer, a sheet metal cover plate is provided on the exterior of the second pixel cotton covering layer, the sheet metal cover plate and the plastic end cap are connected to the second pixel cotton covering layer, and the sheet metal cover plate is fixedly connected to the frame by fixing bolts.

[0007] Preferably, short frames are provided on both sides of the frame, and long frames are provided at both ends of the short frames. An angle bracket is provided on the side of the short frames and long frames that are close to each other. Fixing holes are provided at equal intervals at both ends of the short frames, long frames and angle brackets. The short frames and long frames are fixedly connected to the angle brackets by rivets, and the angle brackets are provided corresponding to the fixing holes.

[0008] Preferably, the inner sides of the short frame and the long frame are provided with clamping grooves, and the photovoltaic panel is connected to the clamping grooves.

[0009] Preferably, the outer walls of both the short frame and the long frame are provided with inner grooves.

[0010] This utility model provides a photovoltaic equalization charging structure. It offers the following advantages: This photovoltaic equalization charging structure, through the cooperation of a frame, photovoltaic panel, battery compartment, plastic end cap, fixing bolts, battery, female connector, and male connector, allows the battery to be installed on the back of the photovoltaic panel and connected to the solar cells in the panel via wires. This enables the electrical energy converted by the solar cells to be stored in the corresponding battery, ensuring balanced charging. The female and male connectors form a series connection between the batteries, and each battery is connected to a corresponding single-cell protection board. An inverter converts the DC power stored in the series circuit into AC power, providing a stable output of electrical energy for household appliances. This prevents overcharging and over-discharging, and addresses the safety hazards associated with placing solar panel energy storage modules indoors, thus improving the stability and safety of the photovoltaic system.

[0011] Through the cooperation of the plastic end cap, battery, fiberglass tape, first pixel cotton layer, second pixel cotton layer, and sheet metal cover plate, the battery is wrapped from the inside out by the fiberglass tape, first pixel cotton layer, and second pixel cotton layer, and the plastic end cap clamps and fixes the wrapped battery. This allows the battery to be fixed and protected inside the sheet metal cover plate. The multi-layered design of the battery can not only effectively insulate heat and prevent thermal runaway in high-temperature environments, but also effectively prevent the intrusion of rainwater and dust. This can further improve the safety of the system and extend the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0013] Figure 2 This is a rear view of the structure of this utility model;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0016] Figure 5 for Figure 3 A magnified view of a portion of region B in the middle.

[0017] In the diagram: 1. Frame; 2. Photovoltaic panel; 3. Battery compartment; 4. Plastic end cap; 5. Fixing bolt; 6. Battery; 7. Female connector; 8. Male connector; 9. Fiberglass tape; 10. First pixel cotton covering; 11. Second pixel cotton covering; 12. Sheet metal cover plate; 13. Short frame; 14. Long frame; 15. Corner bracket; 16. Fixing hole; 17. Rivet; 18. Clamping groove; 19. Inner groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In existing technologies, photovoltaics use a series charging method to charge batteries, which can easily lead to overcharging and fires. Furthermore, it requires high consistency among the battery cells, and after prolonged use, inconsistent battery capacity can easily occur, resulting in battery imbalance. Additionally, placing batteries indoors poses certain safety hazards.

[0020] In view of this, the present invention provides a photovoltaic equalization charging structure. Through the cooperation of a frame, photovoltaic panel, battery compartment, plastic end cap, fixing bolts, battery, female connector, and male connector, the battery is installed on the back of the photovoltaic panel and connected to the solar cells in the photovoltaic panel via wires. This allows the electrical energy converted by the solar cells to be stored in the corresponding battery, ensuring equal charging. The female and male connectors form a series connection between the batteries, and each battery is connected to a single-cell protection board. An inverter converts the DC power stored in the series circuit into AC power, achieving a stable output of electrical energy for use by household appliances. This prevents overcharging, over-discharging, and other abnormal situations, improving the stability and safety of the solar panel system and solving the safety hazards associated with placing solar panel energy storage modules indoors.

[0021] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0022] Depend on Figure 1-5 It is known that a photovoltaic equalization charging structure includes a frame 1, a photovoltaic panel 2 is arranged inside the frame 1, a battery compartment 3 is arranged on both sides of the back of the photovoltaic panel 2, a plastic end cap 4 is arranged at both ends of the battery compartment 3, the battery compartment 3 and the plastic end cap 4 are fixedly connected to the frame 1 by fixing bolts 5, batteries 6 are arranged equidistantly inside the battery compartment 3, a female connector 7 is arranged on one side of the battery compartment 3, the female connector 7 is electrically connected to the battery 6, and a male connector 8 is arranged on the other side of the battery compartment 3, the male connector 8 is electrically connected to the battery 6, and the female connector 7 is electrically connected to the male connector 8.

[0023] In the specific implementation process, it is worth noting that, through the cooperation between the frame 1 and the photovoltaic panel 2, the photovoltaic panel 2 is installed on the inner front of the frame 1. The photovoltaic panel 2 is composed of multiple independent solar cells. After receiving sunlight, it can convert light energy into electrical energy. Through the cooperation between the frame 1, the photovoltaic panel 2, the battery compartment 3, the plastic end cap 4, the fixing bolts 5, and the battery 6, the battery compartment 3 is fixed to the inner sides of the frame 1 by the fixing bolts 5, and the plastic end cap 4 fixes the battery 6 in the battery compartment 3. The total number of batteries 6 is consistent with the number of solar cells in the photovoltaic panel 2, and they are connected to the solar cells by wires, so that the electrical energy converted by the solar cells is stored in the connected battery 6, ensuring balanced charging of the battery 6. In addition, each battery 6 is connected to a single cell protection board to monitor the cell status of the battery 6, prevent overcharging, over-discharging and other abnormalities, and improve the stability of the solar panel system operation. Qualitatively, through the cooperation between the frame 1, photovoltaic panel 2, battery compartment 3, plastic end cap 4, fixing bolt 5, battery 6, connecting female connector 7, and connecting male connector 8, the battery 6 is installed on the back of the photovoltaic panel 2 and connected to the solar cells in the photovoltaic panel 2 by wires. The electrical energy converted by the solar cells is stored in the corresponding battery 6, ensuring balanced charging of the battery 6. By connecting the connecting female connector 7 and connecting male connector 8, the batteries 6 are connected in series, and each battery 6 is connected to a single cell protection board. Then, the DC power stored in the series circuit is converted into AC power by an inverter to achieve stable power output for use by household appliances, preventing abnormal situations such as overcharging and over-discharging, improving the stability and safety of the solar panel system, and solving the safety hazards of placing the solar panel energy storage module indoors. The specific models of photovoltaic panel 2 and battery 6 are not limited, as long as they meet the usage requirements.

[0024] Furthermore, the battery 6 is provided with a fiberglass tape 9 on its exterior. A first pixel cotton covering layer 10 is sleeved on the outer wall of the fiberglass tape 9. A second pixel cotton covering layer 11 is sleeved on the outer wall of the first pixel cotton covering layer 10. A sheet metal cover plate 12 is provided on the exterior of the second pixel cotton covering layer 11. The sheet metal cover plate 12 and the plastic end cap 4 are connected to the second pixel cotton covering layer 11. The sheet metal cover plate 12 is fixedly connected to the frame 1 by fixing bolts 5.

[0025] In the specific implementation process, it is worth noting that the sheet metal cover plate 12 is used to fix and protect the battery 6, and at the same time has a good heat dissipation function, ensuring that the battery 6 can maintain stable performance during long-term operation. The battery compartment 3 for placing the battery 6 is formed by the cooperation between the plastic end cap 4 and the sheet metal cover plate 12, which fixes and protects the battery 6. Through the cooperation between the plastic end cap 4, the battery 6, the fiberglass tape 9, the first pixel cotton covering layer 10, the second pixel cotton covering layer 11 and the sheet metal cover plate 12, the battery 6 is covered from the inside out by the fiberglass tape 9, the first pixel cotton covering layer 10 and the second pixel cotton covering layer 11, and the plastic end cap 4 clamps and fixes the covered battery 6, so that the battery 6 is fixed and protected inside the sheet metal cover plate 12. The battery 6 adopts a multi-layer covering design, which can not only effectively insulate heat and prevent the battery 6 from thermal runaway in high temperature environment, but also effectively prevent rainwater and dust from entering, further improving the safety of the system and extending the service life of the equipment.

[0026] Furthermore, short frames 13 are provided on both sides of the frame 1, and long frames 14 are provided at both ends of the short frames 13. Angle brackets 15 are provided on the side of the short frames 13 and long frames 14 that are close to each other. Fixing holes 16 are provided at equal intervals at both ends of the short frames 13, long frames 14 and angle brackets 15. The short frames 13 and long frames 14 are fixedly connected to the angle brackets 15 by rivets 17. The angle brackets 15 are correspondingly set with the fixing holes 16.

[0027] In the specific implementation process, it is worth noting that through the cooperation between the short frame 13, the long frame 14, the corner bracket 15, the fixing hole 16 and the rivet 17, the short frame 13, the long frame 14 and the corner bracket 15 are fixed in the fixing hole 16 by the rivet 17, forming the fixing frame of the photovoltaic panel 2. This ensures that the photovoltaic panel 2 has higher stability and wind resistance during installation and use, and avoids structural deformation or damage caused by external environmental factors.

[0028] Furthermore, clamping grooves 18 are provided on the inner sides of the short frame 13 and the long frame 14, and the photovoltaic panel 2 is connected to the clamping grooves 18.

[0029] In the specific implementation process, it is worth noting that through the cooperation between the photovoltaic panel 2, the short frame 13, the long frame 14 and the clamping groove 18, the photovoltaic panel 2 is clamped on the outside of the clamping groove 18, thereby fixing the photovoltaic panel 2 within the frame 1. This ensures that the photovoltaic panel 2 will not shift or loosen when subjected to external wind or other external forces, further enhancing the stability and safety of the entire structure and improving the ease of installation of the photovoltaic panel 2.

[0030] Furthermore, the outer walls of both the short frame 13 and the long frame 14 are provided with inner grooves 19;

[0031] In the specific implementation process, it is worth noting that the cooperation between the short frame 13, the long frame 14 and the inner groove 19 improves the structural strength of the short frame 13 and the long frame 14, so that the entire frame 1 can better disperse stress when subjected to external pressure and prevent structural deformation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic equalization charging structure comprising a frame (1), characterized in that: The inside of the frame (1) is provided with a photovoltaic panel (2), the back of the photovoltaic panel (2) is provided with a battery compartment (3) on both sides, the inside of the battery compartment (3) is provided with a plastic end cover (4) at both ends, the battery compartment (3) and the plastic end cover (4) are fixedly connected with the frame (1) through fixing bolts (5), the inside of the battery compartment (3) is provided with a battery (6) at equal intervals, the battery compartment (3) on one side is provided with a female connector (7), the female connector (7) is electrically connected with the battery (6), the battery compartment (3) on the other side is provided with a male connector (8), the male connector (8) is electrically connected with the battery (6), and the female connector (7) and the male connector (8) are electrically connected.

2. A photovoltaic equalization charging structure according to claim 1, characterized in that: The outside of the battery (6) is provided with a glass fiber tape (9), the outer wall of the glass fiber tape (9) is sleeved with a first pixel cotton cladding layer (10), the outer wall of the first pixel cotton cladding layer (10) is sleeved with a second pixel cotton cladding layer (11), the outside of the second pixel cotton cladding layer (11) is provided with a metal cover plate (12), the metal cover plate (12) and the plastic end cover (4) are connected with the second pixel cotton cladding layer (11), and the metal cover plate (12) is fixedly connected with the frame (1) through the fixing bolts (5).

3. The photovoltaic equalization charging structure of claim 1, wherein: Both sides of the frame (1) are provided with a short frame (13), both ends of the short frame (13) are provided with a long frame (14), and the side of the short frame (13) and the long frame (14) close to each other is provided with an angle code (15). Both ends of the short frame (13), the long frame (14) and the angle code (15) are provided with fixing holes (16) at equal intervals, and the short frame (13) and the long frame (14) are fixedly connected with the angle code (15) through rivets (17).

4. A photovoltaic equalizing charging structure according to claim 3, characterized in that: The inside of the short frame (13) and the long frame (14) is provided with a clamping groove (18), and the photovoltaic panel (2) is connected with the clamping groove (18).

5. The photovoltaic equalizing charging structure according to claim 3, characterized in that: The outer wall of the short frame (13) and the long frame (14) is provided with an inner groove (19).

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