Photovoltaic energy storage battery with overcharge protection

Abstract

The utility model relates to the field of photovoltaic energy storage batteries, in particular to a photovoltaic energy storage battery with overcharge protection, which comprises a battery outer shell, a main body used for forming the photovoltaic energy storage battery, an inner photovoltaic energy storage battery core body, an outer photovoltaic energy storage battery core body and an outer photovoltaic energy storage battery core body, and a voltage sensor is fixedly mounted in the inner photovoltaic energy storage battery core body. The photovoltaic energy storage battery is provided with the inner photovoltaic energy storage battery core body, the voltage sensor, the driving display controller, the overcharge circuit breaker and the overcharge protection plate. When the photovoltaic energy storage battery is used, the voltage sensor is arranged in the inner photovoltaic energy storage battery core body and is connected with the driving display controller; in this way, after the inner photovoltaic energy storage battery core body is overcharged through the outer charging port of the front charging cover, the electric sliding rail and the electric sliding sleeve drive the overcharge protection plate to slide downwards, an originally-opened overcharge circuit breaker switch is pressed downwards, and therefore the overcharge circuit breaker is cut off.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic energy storage batteries, specifically to a photovoltaic energy storage battery with overcharge protection. Background Technology

[0002] Photovoltaic energy storage batteries, or simply energy storage batteries, are mainly used to store the solar energy generated by photovoltaic power generation systems. The working principle of a photovoltaic energy storage system is to combine a solar photovoltaic power generation system with an energy storage system to improve energy utilization efficiency and grid stability. There are various types of photovoltaic energy storage batteries, including lithium-ion batteries and lead-acid batteries. Photovoltaic energy storage batteries typically have a long service life, which can meet the needs of long-term energy storage. Photovoltaic energy storage batteries can handle large current inputs and outputs, meeting the high power requirements of photovoltaic power generation systems.

[0003] A search revealed a photovoltaic energy storage battery protection structure (publication number CN221317377U). This invention belongs to the field of battery protection technology, specifically a photovoltaic energy storage battery protection structure, including a protective box containing a battery body. In this invention, the clamping mechanism ensures the battery body remains relatively stable horizontally, preventing avoidable collisions during movement. The adjusting mechanism ensures the battery body remains relatively stable vertically, preventing avoidable collisions during transportation, thus providing relative protection. The fixing mechanism allows for adjustment of the protective plate's position, facilitating battery handling and preventing damage from other objects, indirectly protecting the battery body.

[0004] If existing photovoltaic energy storage batteries lack overcharge protection during use, overcharging can lead to internal short circuits, overheating, and even explosions, posing a threat to personal and property safety. Furthermore, as energy storage components, the stability and reliability of photovoltaic energy storage batteries are crucial to the overall stability of the system. The lack of overcharge protection can cause battery performance degradation, thereby affecting the stability and reliability of the entire system. In the aforementioned comparative case, the photovoltaic energy storage batteries also lacked overcharge protection. This means that with long-term use, users will need to replace batteries and conduct safety checks more frequently, increasing maintenance and time costs.

[0005] Therefore, it is necessary to invent a photovoltaic energy storage battery with overcharge protection to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a photovoltaic energy storage battery with overcharge protection. Through an internal photovoltaic energy storage battery core, a voltage sensor, a drive display controller, an overcharge circuit breaker, and an overcharge protection board, the voltage sensor is connected to the drive display controller, enabling real-time monitoring and intelligent management of the battery's charging status. When overcharge occurs, it can respond quickly and take corresponding protective measures. In some critical applications, overcharge protection can reduce the safety risks caused by battery overcharge failures, ensure stable system operation, and effectively prevent overcharge by promptly cutting off the current to protect the battery from damage. To address the issue that existing photovoltaic energy storage batteries lack overcharge protection during use, which can lead to internal short circuits, overheating, and even explosions due to overcharging, posing a threat to personal and property safety. Furthermore, as energy storage components, the stability and reliability of photovoltaic energy storage batteries are crucial to the overall stability of the system. The lack of overcharge protection causes battery performance degradation, thus affecting the stability and reliability of the entire system. In the aforementioned comparative case, the photovoltaic energy storage batteries also lacked overcharge protection, requiring users to replace batteries and conduct safety checks more frequently over long-term use, thus increasing maintenance and time costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic energy storage battery with overcharge protection, including a battery casing, which forms the main body of the photovoltaic energy storage battery;

[0008] An internal photovoltaic energy storage battery core is disposed inside the battery shell and is used to store electrical energy. A voltage sensor is fixedly installed inside the internal photovoltaic energy storage battery core. A first external wire is fixedly connected to the outside of the voltage sensor. A drive display controller is fixedly installed at the other end of the first external wire.

[0009] A front charging cover is located on the outside of the battery casing and is used to install a crossbar inside. An overcharge circuit breaker is fixedly installed inside the crossbar. A second external wiring is fixedly installed on the outside of the crossbar, and the other end of the second external wiring is fixedly connected to the inner photovoltaic energy storage battery cell.

[0010] Electric sliding rails are all installed inside the front charging cover for sliding connection with electric sliding sleeves. An overcharge protection plate is fixedly installed on the outside of the electric sliding sleeves. An installation base is fixedly installed inside the front charging cover. A telescopic cylinder is fixedly installed above the installation base. An overcharge protection rod is fixedly installed at the top of the telescopic cylinder. An external charging port is provided on the outside of the front charging cover.

[0011] Preferably, a mounting slot is provided on the upper part of the battery casing, a mounting block is embedded inside the mounting slot, an upper cover is fixedly installed on the upper part of the mounting block, and a heat dissipation window is provided on the upper part of the upper cover.

[0012] Preferably, the mounting block fixedly installed at the bottom of the upper cover engages with the mounting slot opened on the top of the battery casing, and the mounting block and the mounting slot are used together.

[0013] Preferably, the front charging cover is threadedly connected to the battery casing, and the overcharge protection rod and the telescopic cylinder are vertically distributed.

[0014] Preferably, a heat storage plate is fixedly installed inside the battery casing, and external frames are fixedly installed on both sides of the battery casing, with heat dissipation fins fixedly installed inside the external frames.

[0015] Preferably, the number of heat dissipation fins is set to multiple, and the multiple heat dissipation fins are distributed at equal intervals on the external frame.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. This utility model includes an internal photovoltaic energy storage battery core, a voltage sensor, a drive display controller, an overcharge circuit breaker, and an overcharge protection board. When using this photovoltaic energy storage battery, since the voltage sensor is installed inside the internal photovoltaic energy storage battery core and is connected to the drive display controller, if the internal photovoltaic energy storage battery core is overcharged through the external charging port of the front charging cover, the electric slide rail and electric sliding sleeve will drive the overcharge protection board to slide down, pressing down the originally open overcharge circuit breaker switch, thereby cutting off the overcharge circuit breaker and stopping the external charging port from continuing to flow current into the internal photovoltaic energy storage battery core, thus achieving overcharge protection. This overcharge protection design, through the connection of the voltage sensor and the drive display controller, realizes real-time monitoring and intelligent management of the battery charging status. When an overcharge occurs, it can respond quickly and take corresponding protective measures. In some critical applications, overcharge protection can reduce the safety risks caused by battery overcharge failure, ensure stable system operation, and effectively prevent overcharge by cutting off the current in time to protect the battery from damage.

[0018] 2. This utility model is equipped with an installation slot, an installation block, an upper shell cover, a heat dissipation window, a heat storage plate, an external frame, and heat dissipation fins. When the internal photovoltaic energy storage battery cell is charging, the internal temperature will rise. The heat dissipation window set on the top of the battery shell allows the internal heat to flow from above. In addition, heat storage plates are set on both sides of the internal photovoltaic energy storage battery cell. The heat storage plates can absorb the heat dissipated by the internal photovoltaic energy storage battery cell during charging, and then dissipate the heat through the external heat dissipation fins. This design can make full use of the heat dissipation capacity of the heat dissipation window and heat dissipation fins, improve the overall heat dissipation efficiency, and the efficient heat dissipation helps to reduce the temperature of the battery during operation, reduce problems such as battery aging and performance degradation caused by high temperature, and also extend the service life of the photovoltaic energy storage battery and improve the reliability and stability of the battery. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the upper shell cover structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overcharge circuit breaker structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the telescopic cylinder structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the heat dissipation fin structure of this utility model;

[0025] Figure 6 This is the system control flowchart of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Battery casing; 2. Internal photovoltaic energy storage battery core; 3. Voltage sensor; 4. First external wiring; 5. Drive display controller; 6. Mounting slot; 7. Mounting plug; 8. Top cover; 9. Heat dissipation window; 10. Front charging cover; 11. Crossbar; 12. Overcharge circuit breaker; 13. Second external wiring; 14. Electric slide rail; 15. Electric sliding sleeve; 16. Overcharge protection board; 17. Mounting base; 18. Telescopic cylinder; 19. Overcharge protection rod; 20. External charging port; 21. Heat storage plate; 22. External frame; 23. Heat dissipation fins. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-6 The photovoltaic energy storage battery shown includes a battery casing 1, which forms the main body of the photovoltaic energy storage battery.

[0030] The internal photovoltaic energy storage battery core 2 is located inside the battery outer shell 1 and is used to store electrical energy. A voltage sensor 3 is fixedly installed inside the internal photovoltaic energy storage battery core 2. A first external wire 4 is fixedly connected to the outside of the voltage sensor 3. A drive display controller 5 is fixedly installed at the other end of the first external wire 4.

[0031] A front charging cover 10 is located on the outside of the battery housing 1 and is used to install a crossbar 11 inside. An overcharge circuit breaker 12 is fixedly installed inside the crossbar 11. A second external wiring 13 is fixedly installed on the outside of the crossbar 11, and the other end of the second external wiring 13 is fixedly connected to the inner photovoltaic energy storage battery core 2.

[0032] Electric slide rails 14 are all located inside the front charging cover 10 and are used to slide and connect to electric sliding sleeves 15. An overcharge protection plate 16 is fixedly installed on the outside of the electric sliding sleeves 15. An installation base 17 is fixedly installed inside the front charging cover 10. A telescopic cylinder 18 is fixedly installed on the top of the installation base 17. An overcharge protection rod 19 is fixedly installed on the top of the telescopic cylinder 18. An external charging port 20 is provided on the outside of the front charging cover 10. Since a voltage sensor 3 is installed inside the inner photovoltaic energy storage battery cell 2 and the voltage sensor 3 is connected to the drive display controller 5, if the inner photovoltaic energy storage battery cell 2 is overcharged through the external charging port 20 of the front charging cover 10, the electric slide rails 14 and electric sliding sleeves 15 will drive the overcharge protection plate 16 to slide down, press down the originally open overcharge circuit breaker 12 switch, thereby cutting off the overcharge circuit breaker 12 and stopping the external charging port 20 from continuing to flow current to the inner photovoltaic energy storage battery cell 2, thus realizing overcharge protection.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, a mounting slot 6 is provided on the top of the battery casing 1. A mounting block 7 is embedded inside the mounting slot 6. An upper cover 8 is fixedly installed on the top of the mounting block 7. A heat dissipation window 9 is provided on the top of the upper cover 8. The heat dissipation window 9 on the top of the battery casing 1 allows internal heat to circulate from above. The mounting block 7 fixedly installed at the bottom of the upper cover 8 engages with the mounting slot 6 on the top of the battery casing 1. The engagement of the mounting block 7 and the mounting slot 6, and the engagement of the battery casing 1 and the upper cover 8, provides a certain degree of external protection for the internal photovoltaic energy storage battery core 2, reducing damage caused by external factors. The front charging cover 10 is threadedly connected to the battery casing 1. The overcharge protection rod 19 and the telescopic cylinder 18 are vertically distributed. The telescopic cylinder 18 drives the overcharge protection rod 19 to rise, which can lift the switch of the overcharge circuit breaker 12 that was originally closed, thereby allowing the photovoltaic energy storage battery to charge normally.

[0034] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a heat storage plate 21 is fixedly installed inside the battery casing 1, and an external frame 22 is fixedly installed on both sides of the battery casing 1. Heat dissipation fins 23 are fixedly installed inside the external frame 22. The heat storage plate 21 can absorb the heat emitted by the internal photovoltaic energy storage battery core 2 during charging, and then dissipate the heat through the external heat dissipation fins 23. The number of heat dissipation fins 23 is set to multiple, and the multiple heat dissipation fins 23 are distributed at equal intervals on the external frame 22. The heat dissipation capacity of the heat dissipation fins 23 can help improve the overall heat dissipation efficiency. Efficient heat dissipation helps to reduce the temperature of the battery during operation.

[0035] The working principle of this utility model is as follows: First, when the photovoltaic energy storage battery is being charged, the external charging port 20 of the front charging cover 10 is inserted into an external charger, and then the external power supply is connected for normal charging. During the charging process, the internal temperature will rise, and the heat dissipation window 9 set on the top of the battery casing 1 allows the internal heat to flow from the top. Next, heat storage plates 21 are set on both sides of the inner photovoltaic energy storage battery core 2. The heat storage plates 21 can absorb the heat dissipated by the inner photovoltaic energy storage battery core 2 during the charging process, and then dissipate the heat through the external heat dissipation fins 23. This can make full use of the heat dissipation capacity of the heat dissipation window 9 and the heat dissipation fins 23, improve the overall heat dissipation efficiency, and efficient heat dissipation helps to reduce the temperature of the battery during operation and reduce problems such as battery aging and performance degradation caused by high temperature. Subsequently, a voltage sensor 3 is also set inside the inner photovoltaic energy storage battery core 2, and the voltage sensor 3 is connected to the drive display controller 5. In this way, if the inner photovoltaic energy storage battery core 2 is overcharged through the external charging port 20 of the front charging cover 10, the switch of the electric slide rail 14 will be opened, and the electric slide rail will... The electric sliding sleeve 14 and the electric sliding sleeve 15 drive the overcharge protection plate 16 to slide down, pressing down the originally open overcharge circuit breaker 12 switch, thereby cutting off the overcharge circuit breaker 12 and stopping the external charging port 20 from continuing to flow current into the photovoltaic energy storage battery cell 2, thus achieving overcharge protection. This overcharge protection design, through the connection of the voltage sensor 3 and the drive display controller 5, realizes real-time monitoring and intelligent management of the battery charging status. When an overcharge occurs, it can respond quickly and take corresponding protective measures. In some critical applications, overcharge protection can reduce the safety risks caused by battery overcharge failure. Then, when charging is needed, the overcharge protection plate 16 can be raised, and the telescopic cylinder 18 drives the overcharge protection rod 19 to rise, pushing up the originally closed overcharge circuit breaker 12 switch, thereby allowing the photovoltaic energy storage battery to charge normally. Finally, after completing all the installation and use of the photovoltaic energy storage battery according to the above operations, the switch of the electric sliding sleeve 14 is turned off. Routine maintenance of the photovoltaic energy storage battery is then performed. In this way, the use process of the photovoltaic energy storage battery with overcharge protection is completed.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic energy storage battery with overcharge protection, characterized in that: include Battery casing (1), used to form the main body of photovoltaic energy storage battery; An internal photovoltaic energy storage battery core (2) is set inside the battery outer shell (1) for storing electrical energy. A voltage sensor (3) is fixedly installed inside the internal photovoltaic energy storage battery core (2). A first external wire (4) is fixedly connected to the outside of the voltage sensor (3). A drive display controller (5) is fixedly installed at the other end of the first external wire (4). A front charging cover (10) is set on the outside of the battery housing (1) for installing a crossbar (11) inside. An overcharge circuit breaker (12) is fixedly installed inside the crossbar (11). A second external wiring (13) is fixedly installed on the outside of the crossbar (11). The other end of the second external wiring (13) is fixedly connected to the inner photovoltaic energy storage battery core (2). Electric slide rails (14) are all located inside the front charging cover (10) and are used to slide and connect to electric sliding sleeves (15). An overcharge protection plate (16) is fixedly installed on the outside of the electric sliding sleeves (15). An installation base (17) is fixedly installed inside the front charging cover (10). A telescopic cylinder (18) is fixedly installed above the installation base (17). An overcharge protection rod (19) is fixedly installed at the top of the telescopic cylinder (18). An external charging port (20) is provided on the outside of the front charging cover (10).

2. A photovoltaic energy storage battery with overcharge protection according to claim 1, characterized in that: The battery casing (1) has an installation slot (6) on its upper part. An installation block (7) is embedded inside the installation slot (6). An upper cover (8) is fixedly installed on the upper part of the installation block (7). A heat dissipation window (9) is provided on the upper part of the upper cover (8).

3. A photovoltaic energy storage battery with overcharge protection according to claim 2, characterized in that: The mounting block (7) fixedly installed at the bottom of the upper cover (8) engages with the mounting slot (6) opened on the top of the battery casing (1), and the mounting block (7) and the mounting slot (6) are used together.

4. A photovoltaic energy storage battery with overcharge protection according to claim 1, characterized in that: The front charging cover (10) is threadedly connected to the battery casing (1), and the overcharge protection rod (19) and the telescopic cylinder (18) are vertically distributed.

5. A photovoltaic energy storage battery with overcharge protection according to claim 1, characterized in that: A heat storage plate (21) is fixedly installed inside the battery housing (1), and an external frame (22) is fixedly installed on both sides of the battery housing (1). A heat dissipation fin (23) is fixedly installed inside the external frame (22).

6. A photovoltaic energy storage battery with overcharge protection according to claim 5, characterized in that: The number of heat dissipation fins (23) is set to multiple, and the multiple heat dissipation fins (23) are distributed at equal intervals on the external frame (22).

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