A monitoring and protection device for a photovoltaic energy storage battery cabinet

Abstract

This application belongs to the technical field of photovoltaic energy storage battery cabinets, and discloses a monitoring and protection device for a photovoltaic energy storage battery cabinet, including a battery cabinet main body. A protection mechanism is provided inside the battery cabinet main body, and the protection mechanism extends to the outside of the battery cabinet main body. In this invention, by setting multiple infrared thermal imagers, the temperatures of multiple battery packs can be monitored simultaneously. When the temperature of a battery pack is relatively high, the multiple infrared thermal imagers will transmit signals to multiple fans through multiple central processors, causing the multiple fans to rotate rapidly. The two fans inside the two air inlets will inhale external gas into the main air duct, and at the same time, the two fans inside the two air outlets will exhaust the heat generated by the battery packs from inside the battery cabinet main body, thereby achieving the purpose of circulating cooling. Through the above structure, the problem that the safety hazard will be greatly increased during the use of the photovoltaic energy storage battery cabinet due to the inability to ensure meeting the temperature requirements for the use of the battery is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic energy storage battery cabinets. More specifically, it relates to a monitoring and protection device for a photovoltaic energy storage battery cabinet. Background Art

[0002] Photovoltaic energy storage batteries are an indispensable part of solar photovoltaic power generation systems. They use solar energy to generate electricity and store the generated electrical energy through storage technologies for emergencies. With the progress of technology and the expansion of new energy application fields, the charge and discharge rates of photovoltaic energy storage batteries are gradually increasing. Some new energy storage battery technologies, such as lithium-ion batteries, may have higher charge and discharge rates to meet the needs of certain specific applications, such as fast charging or high-power output. When photovoltaic energy storage batteries are undergoing high-rate charge and discharge, their heat will increase, and the service life of the battery is related to its temperature and temperature difference. The optimal operating temperature of photovoltaic energy storage batteries is 15°C - 35°C, and there are generally multiple groups of batteries in an energy storage system.

[0003] When multiple groups of batteries are close to each other, heat will accumulate. However, most of the existing monitoring and protection devices use conventional heat dissipation structures, which can neither ensure the overall uniformity during heat dissipation, making it impossible to keep the temperature of the batteries balanced, nor are they intelligent enough. Therefore, they cannot ensure that the temperature requirements of the batteries can be met, resulting in a significant increase in potential safety hazards during the use of photovoltaic energy storage battery cabinets.

[0004] To solve the above problems, this application provides a monitoring and protection device for a photovoltaic energy storage battery cabinet. Summary of the Invention

[0005] The monitoring and protection device for a photovoltaic energy storage battery cabinet provided by this application adopts the following technical solutions:

[0006] A monitoring and protection device for a photovoltaic energy storage battery cabinet includes a battery cabinet main body. A protection mechanism is provided inside the battery cabinet main body, and the protection mechanism extends to the outside of the battery cabinet main body;

[0007] The protection mechanism includes two mounting frames. Both of the two mounting frames are embedded inside the battery cabinet main body. Protective sleeves are fixedly embedded between the two mounting frames and the battery cabinet main body. Two ventilation plates are fixedly embedded inside each mounting frame. A main air duct is fixedly embedded between the two ventilation plates in each mounting frame. Multiple battery groups are embedded between the two ventilation plates in each mounting frame and their corresponding mounting frames. There are cabinet doors on both the front and rear sides of the battery cabinet main body. Two air inlets and two air outlets are fixedly embedded inside the two cabinet doors respectively. Ventilation nets are fixedly embedded inside the two air inlets and the two air outlets. Fans are fixedly embedded inside the four ventilation nets. An auxiliary component is provided outside the multiple fans.

[0008] Furthermore, the auxiliary components include multiple infrared thermal imagers and multiple central processing units, which are respectively installed on the inner sides of the two cabinet doors, and are respectively located on both sides of the two air inlets and the two air outlets.

[0009] Through the above technical solution, multiple infrared thermal imagers are provided to monitor the temperature of multiple battery packs, thereby achieving the purpose of improving the safety of use.

[0010] Furthermore, the plurality of infrared thermal imagers are electrically connected to the input terminals of the plurality of central processing units, the plurality of central processing units are electrically connected to the input terminals of the plurality of fans, and the plurality of fans are respectively located at the front and rear sides of the two main air ducts.

[0011] Through the above technical solution, since the multiple fans are respectively located on the front and rear sides of the two main air ducts, the ventilation and heat dissipation effects can be maximized.

[0012] Furthermore, handles are fixedly connected to the outer sides of the two cabinet doors, and the two cabinet doors are movably connected to the battery cabinet body through hinges. The two ventilation plates in each mounting frame are symmetrically arranged up and down with the center line of the corresponding mounting frame as the axis, and the multiple battery packs are evenly distributed with the center lines of the two main air ducts as the axis.

[0013] Through the above technical solution, by providing handles and grips, the flexibility of the cabinet door when in use can be expanded, and it is also convenient for the operator to open and close the cabinet door later, thereby achieving the purpose of improving work efficiency.

[0014] Furthermore, the battery cabinet body and the top and bottom of the protective cover are provided with connection grooves, the two connection grooves are symmetrically arranged up and down with the center line of the battery cabinet body as the axis, and connection nets are fixedly embedded in the two connection grooves.

[0015] Through the above technical solution, by setting up two connecting nets, the wind speed can be effectively enhanced, and while improving the heat dissipation effect, the problem of heat accumulation can also be effectively solved.

[0016] Furthermore, the front and rear ends of the two main air ducts are fixedly connected with mounting rings, the outer walls of the multiple mounting rings are provided with threaded grooves, the outer walls of the multiple mounting rings are screwed with hollow rings, both sides of the multiple hollow rings are fixedly connected with anti-slip pads, and the multiple anti-slip pads are symmetrically arranged with the center lines of the multiple hollow rings as the axis.

[0017] Through the above technical solution, by providing the threaded groove, it is convenient for the operator to install and disassemble the hollow ring at a later time, thereby achieving the purpose of facilitating the taking of multiple battery packs.

[0018] Furthermore, baffles are fixedly connected to the tops and bottoms of the multiple hollow rings. The multiple baffles are symmetrically arranged up and down with the central lines of the multiple hollow rings as axes, and the multiple baffles are respectively in contact with the front and rear ends of the multiple battery packs.

[0019] Through the above technical solution, by providing multiple baffles, the multiple battery packs can be positioned to prevent displacement from affecting normal use and causing inconvenience.

[0020] Furthermore, a plurality of through grooves are formed on both sides of the two main air ducts. The plurality of through grooves are symmetrically arranged in pairs with the central lines of the two main air ducts as axes and are evenly distributed in a straight line.

[0021] Through the above technical solution, by providing a plurality of through grooves, the fluidity of the gas can be enhanced, and the phenomenon of poor heat dissipation can be avoided.

[0022] Furthermore, connecting rods are fixedly connected to the outsides of the multiple baffles. Buffer sleeves are sleeved on the outer ends of the multiple connecting rods. Buffer springs are fixedly connected between the multiple buffer sleeves and the multiple baffles, and the multiple buffer springs are respectively sleeved on the outsides of the multiple connecting rods.

[0023] Through the above technical solution, by providing multiple buffer springs, the damage caused to the multiple battery packs when the battery cabinet main body is impacted can be reduced, so that the service life of the battery packs can be longer.

[0024] Furthermore, the outsides of the multiple buffer sleeves are respectively in contact with the inner sides of the two cabinet doors. A plurality of support legs are fixedly connected to the bottom of the battery cabinet main body. The plurality of support legs are evenly distributed with the central line of the battery cabinet main body as the axis, and the plurality of support legs are all made of anti-slip materials.

[0025] Through the above technical solution, since the plurality of support legs are all made of anti-slip materials, the friction between the support legs and the ground can be enhanced, so that the device can be more stable and firm during use.

[0026] In summary, the present application includes the following beneficial technical effects:

[0027] (1)In this invention, multiple infrared thermal imagers are set to monitor the temperatures of multiple battery packs simultaneously. When a battery pack has a relatively high temperature, the multiple infrared thermal imagers will transmit signals to multiple fans through multiple central processors, causing the multiple fans to rotate rapidly. The two fans inside the two air inlets inhale external gas into the main air duct, and at the same time, the two fans inside the two air outlets exhaust the heat generated by the battery packs from inside the battery cabinet body, thereby achieving the purpose of circulating cooling. Through the above structure, the problem that the safety hazards will greatly increase during the use of the photovoltaic energy storage battery cabinet due to the inability to ensure meeting the temperature requirements for the use of the batteries is effectively solved.

[0028] (2)In this invention, when it is necessary to take out a battery pack, the cabinet door can be rotated and opened through the hinge and the handle. Subsequently, grasp the two corresponding anti-slip pads and rotate the hollow ring. When the two baffles rotate from the vertical state to the horizontal state, the two baffles will no longer limit the battery pack. At this time, the operator can pull out the battery pack forward from inside the battery cabinet body. Through the above structure, it is convenient for the user to quickly take out and store the battery pack. Description of the Drawings

[0029] Figure 1 Schematic diagram of the overall structure of this application;

[0030] Figure 2 Partial perspective view of this application;

[0031] Figure 3 Perspective view of the mounting bracket of this application;

[0032] Figure 4 Of this application Figure 1 Enlarged view of the structure at A in;

[0033] Figure 5 Outer perspective view of the hollow ring of this application;

[0034] Figure 6 Perspective view of one end of the main air duct of this application.

[0035] Explanation of the reference numerals in the drawings:

[0036] 1. Battery cabinet body; 2. Mounting bracket; 3. Protective sleeve; 4. Ventilation plate; 5. Main air duct; 6. Battery pack; 7. Cabinet door; 8. Air inlet; 9. Air outlet; 10. Ventilation net; 11. Fan; 12. Infrared thermal imager; 13. Central processor; 14. Handle; 15. Connecting net; 16. Mounting ring; 17. Hollow ring; 18. Anti-slip pad; 19. Baffle; 20. Connecting rod; 21. Buffer sleeve; 22. Buffer spring; 23. Threaded groove; 24. Support leg. Detailed Description of the Invention

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0038] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] Embodiment:

[0041] An embodiment of the present application discloses a monitoring and protection device for a photovoltaic energy storage battery cabinet. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , which includes a battery cabinet main body 1. A protection mechanism is provided inside the battery cabinet main body 1, and the protection mechanism extends to the outside of the battery cabinet main body 1.

[0042] The protection mechanism includes two mounting brackets 2, both of which are embedded inside the battery cabinet main body 1. A protective sleeve 3 is fixedly embedded between the two mounting brackets 2 and the battery cabinet main body 1. Two ventilation plates 4 are fixedly embedded inside each mounting bracket 2. A main air duct 5 is fixedly embedded between the two ventilation plates 4 inside each mounting bracket 2. A plurality of battery packs 6 are embedded between the two ventilation plates 4 inside each mounting bracket 2 and the corresponding mounting bracket 2. There are cabinet doors 7 on both the front and rear sides of the battery cabinet main body 1. Two air inlets 8 and two air outlets 9 are fixedly embedded inside the two cabinet doors 7 respectively. Ventilation meshes 10 are fixedly embedded inside the two air inlets 8 and the two air outlets 9. Fans 11 are fixedly embedded inside the four ventilation meshes 10.

[0043] Please refer to Figure 1 and Figure 2 , there are auxiliary components outside the plurality of fans 11. The auxiliary components include a plurality of infrared thermal imagers 12 and a plurality of central processors 13. The plurality of infrared thermal imagers 12 and the plurality of central processors 13 are respectively installed on the inner sides of the two cabinet doors 7. The plurality of infrared thermal imagers 12 and the plurality of central processors 13 are respectively located on both sides of the two air inlets 8 and the two air outlets. The inputs of the plurality of infrared thermal imagers 12 and the plurality of central processors 13 are electrically connected. The inputs of the plurality of central processors 13 and the plurality of fans 11 are electrically connected. The plurality of fans 11 are respectively located on the front and rear sides of the two main air ducts 5. By setting the plurality of infrared thermal imagers 12, the temperature of the plurality of battery packs 6 can be monitored, thereby achieving the purpose of improving the use safety. At the same time, since the plurality of fans 11 are respectively located on the front and rear sides of the two main air ducts 5, the ventilation and heat dissipation effect can be maximized.

[0044] Please refer to Figure 1 , handles 14 are fixedly connected to the outer sides of the two cabinet doors 7. The two cabinet doors 7 are movably connected to the battery cabinet main body 1 through hinges. The two ventilation plates 4 inside each mounting bracket 2 are symmetrically arranged up and down with the midline of the corresponding mounting bracket 2 as the axis. The plurality of battery packs 6 are evenly distributed with the midline of the two main air ducts 5 as the axis. Connection grooves are opened at the top and bottom of the battery cabinet main body 1 and the protective sleeve 3. The two connection grooves are symmetrically arranged up and down with the midline of the battery cabinet main body 1 as the axis. Connection meshes 15 are fixedly embedded inside the two connection grooves. By setting the handles 14 and the grips, the flexibility of the cabinet doors 7 during use can be increased. At the same time, it is also convenient for the operator to open and close the cabinet doors 7 later, thereby achieving the purpose of improving work efficiency. At the same time, by setting the two connection meshes 15, the wind speed can be effectively enhanced. While improving the heat dissipation effect, the problem of heat accumulation can also be effectively solved.

[0045] Please refer to Figure 5 and Figure 6, both the front and rear ends of the two main air ducts 5 are fixedly connected with mounting rings 16. Thread grooves 23 are formed on the outer walls of the plurality of mounting rings 16. Hollow rings 17 are screwed on the outer walls of the plurality of mounting rings 16. Anti-slip pads 18 are fixedly connected to both sides of the plurality of hollow rings 17. The plurality of anti-slip pads 18 are symmetrically arranged with the midlines of the plurality of hollow rings 17 as the axes. Baffles 19 are fixedly connected to the tops and bottoms of the plurality of hollow rings 17. The plurality of baffles 19 are symmetrically arranged up and down with the midlines of the plurality of hollow rings 17 as the axes. The plurality of baffles 19 are respectively in contact with the front and rear ends of the plurality of battery packs 6. By forming the thread grooves 23, it is convenient for the operator to install and disassemble the hollow rings 17 in the later stage, thereby facilitating the taking of the plurality of battery packs 6. At the same time, by arranging the plurality of baffles 19, the plurality of battery packs 6 can be positioned to prevent displacement from affecting normal use and causing inconvenience.

[0046] Please refer to Figure 5 and Figure 6 , a plurality of through grooves are formed on both sides of the two main air ducts 5. The plurality of through grooves are symmetrically arranged in pairs with the midlines of the two main air ducts 5 as the axes and are evenly distributed in a straight line. Connecting rods 20 are fixedly connected to the outer sides of the plurality of baffles 19. Buffer sleeves 21 are sleeved on the outer ends of the plurality of connecting rods 20. Buffer springs 22 are fixedly connected between the plurality of buffer sleeves 21 and the plurality of baffles 19. The plurality of buffer springs 22 are respectively sleeved on the outer sides of the plurality of connecting rods 20. By forming the plurality of through grooves, the fluidity of the gas can be enhanced to avoid the occurrence of poor heat dissipation. At the same time, by arranging the plurality of buffer springs 22, the damage caused to the plurality of battery packs 6 when the battery cabinet main body 1 is impacted can be reduced, thereby enabling the battery packs 6 to have a longer service life.

[0047] Please refer to Figure 1 and Figure 2 , the outer sides of the plurality of buffer sleeves 21 are respectively in contact with the inner sides of the two cabinet doors 7. A plurality of support legs 24 are fixedly connected to the bottom of the battery cabinet main body 1. The plurality of support legs 24 are evenly distributed with the midline of the battery cabinet main body 1 as the axis. The plurality of support legs 24 are all made of anti-slip materials. Since the plurality of support legs 24 are all made of anti-slip materials, the friction between the support legs 24 and the ground can be enhanced, so that the device can be more stable and firm during use.

[0048] The implementation principle of this embodiment is as follows: During the use of the battery cabinet main body 1, multiple infrared thermal imagers 12 will simultaneously monitor the temperatures of multiple battery packs 6. When the temperature of a battery pack 6 is relatively high, the multiple infrared thermal imagers 12 will transmit signals to multiple fans 11 through multiple central processors 13, causing the multiple fans 11 to rotate rapidly. The two fans 11 inside the two air inlets 8 will inhale external gas into the main air duct 5, and at the same time, the two fans 11 inside the two exhaust ports 9 will discharge the heat generated by the battery packs 6 from inside the battery cabinet main body 1, thereby achieving the purpose of circulating cooling. Since multiple through slots are provided on both sides of the main air duct 5 and multiple ventilation plates 4 are provided, external gas can quickly come into contact with the multiple battery packs 6, and at the same time, the uniformity during contact is ensured. When the temperature of the battery packs 6 drops to the optimal operating temperature, the multiple infrared thermal imagers 12 will transmit signals to the multiple fans 11 through the multiple central processors 13 again, causing the multiple fans 11 to stop rotating. Through the above structure, the problem that the safety hazard will greatly increase during the use of the photovoltaic energy storage battery cabinet due to the inability to ensure meeting the temperature requirements for the use of the battery is effectively solved.

[0049] When it is necessary to take out a battery pack 6, the lock on the cabinet door 7 can be opened first, and then the cabinet door 7 can be rotated and opened through the hinge and the handle 14. Subsequently, grasp the two corresponding anti-slip pads 18 and rotate the hollow ring 17. When the two baffles 19 rotate from the vertical state to the horizontal state, the two baffles 19 will no longer limit the battery pack 6. At this time, the operator can pull out the battery pack 6 forward from inside the battery cabinet main body 1 to complete the taking operation. Since multiple connecting rods 20, multiple buffer sleeves 21, and multiple buffer springs 22 are provided, when the battery cabinet main body 1 is impacted, the multiple buffer springs 22 will deform. At the same time, since damping is provided at the joints of the multiple connecting rods 20 and the multiple buffer sleeves 21, the friction between the two will be increased, enabling the multiple buffer springs 22 to quickly return to the static state. Thus, when the battery cabinet main body 1 is impacted by the outside world, the damage caused by the impact force to the battery pack 6 can be effectively reduced.

[0050] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A monitoring and protection device for a photovoltaic energy storage battery cabinet, comprising a battery cabinet body (1), characterized in that: A protection mechanism is provided inside the battery cabinet body (1), and the protection mechanism extends to the outside of the battery cabinet body (1); The protection mechanism comprises two mounting frames (2), the two mounting frames (2) are embedded in the battery cabinet body (1), a protective cover (3) is fixedly embedded between the two mounting frames (2) and the battery cabinet body (1), two ventilation plates (4) are fixedly embedded in each mounting frame (2), a main air duct (5) is fixedly embedded between the two ventilation plates (4) in each mounting frame (2), a plurality of battery packs (6) are embedded between the two ventilation plates (4) in each mounting frame (2) and its corresponding mounting frame (2), cabinet doors (7) are provided on the front and rear sides of the battery cabinet body (1), two air inlets (8) and two air outlets (9) are fixedly embedded in the two cabinet doors (7), ventilation nets (10) are fixedly embedded in the two air inlets (8) and the two air outlets (9), fans (11) are fixedly embedded in the four ventilation nets (10), and auxiliary components are provided on the outside of the plurality of fans (11); The auxiliary components include a plurality of infrared thermal imagers (12) and a plurality of central processing units (13), the plurality of infrared thermal imagers (12) and the plurality of central processing units (13) being respectively installed on the inner sides of the two cabinet doors (7), and the plurality of infrared thermal imagers (12) and the plurality of central processing units (13) being respectively located on both sides of the two air inlets (8) and the two air outlets; The plurality of infrared thermal imagers (12) are electrically connected to the input ends of the plurality of central processing units (13); the plurality of central processing units (13) are electrically connected to the input ends of the plurality of fans (11); and the plurality of fans (11) are respectively located at the front and rear sides of the two main air ducts (5); The two cabinet doors (7) are both fixedly connected to the outside with a handle (14), the two cabinet doors (7) are movably connected to the battery cabinet body (1) via a hinge, the two ventilation plates (4) in each mounting frame (2) are respectively symmetrically arranged up and down with the center line of the corresponding mounting frame (2) as the axis, and the plurality of battery packs (6) are respectively evenly distributed with the center lines of the two main air ducts (5) as the axis; The battery cabinet body (1) and the protective cover (3) are provided with connection grooves at the top and bottom, the two connection grooves are symmetrically arranged with the center line of the battery cabinet body (1) as the axis, and the two connection grooves are fixedly embedded with connection nets (15); The front and rear ends of the two main air ducts (5) are fixedly connected to mounting rings (16), the outer walls of the plurality of mounting rings (16) are provided with threaded grooves (23), the outer walls of the plurality of mounting rings (16) are screwed with hollow rings (17), both sides of the plurality of hollow rings (17) are fixedly connected to anti-skid pads (18), and the plurality of anti-skid pads (18) are symmetrically arranged with the center lines of the plurality of hollow rings (17) as axes; The tops and bottoms of the plurality of hollow rings (17) are fixedly connected with baffles (19); the plurality of baffles (19) are symmetrically arranged up and down with the center lines of the plurality of hollow rings (17) as axes; the plurality of baffles (19) are respectively fitted with the front and rear ends of the plurality of battery packs (6); A plurality of through slots are provided on both sides of the two main air ducts (5), and the plurality of through slots are symmetrically arranged in pairs with the center lines of the two main air ducts (5) as axes and are evenly distributed in a straight line; The outer sides of the plurality of baffles (19) are all fixedly connected to connecting rods (20), the outer ends of the plurality of connecting rods (20) are all sleeved with buffer sleeves (21), buffer springs (22) are all fixedly connected between the plurality of buffer sleeves (21) and the plurality of baffles (19), and the plurality of buffer springs (22) are sleeved on the outer sides of the plurality of connecting rods (20) respectively; The outer sides of the plurality of buffer sleeves (21) are respectively fitted with the inner sides of the two cabinet doors (7); the bottom of the battery cabinet body (1) is fixedly connected with a plurality of support legs (24); the plurality of support legs (24) are evenly distributed with the center line of the battery cabinet body (1) as the axis; and the plurality of support legs (24) are all made of anti-slip material.

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