Energy storage battery high-voltage box

Abstract

The utility model relates to the technical field of energy storage battery cabins, and provides an energy storage battery high-voltage box, which comprises a case, a liquid cooling unit, a plurality of battery modules, a liquid cooling part and a controller, and is characterized in that the case comprises an inner cavity and two side cavities, and the two side cavities are respectively arranged at two sides of the inner cavity; the liquid cooling unit is arranged in the inner cavity; the plurality of battery modules are arranged at intervals along the cavity body of the inner cavity; one end of the liquid cooling part is connected with the output end of the liquid cooling unit, the other end of the liquid cooling part is connected with the input end of the liquid cooling unit, the liquid cooling part penetrates through the lower part and / or two sides of each battery module, and the liquid cooling part is used for cooling the battery modules; and the controller is arranged in the case and is electrically connected with the liquid cooling unit, the battery module and the liquid cooling part respectively. According to the energy storage battery high-voltage box provided by the utility model, the inner cavity and the two opposite side cavities are arranged, so that the battery modules and the liquid cooling part can be effectively separated and managed, cooling liquid can flow through each battery module based on the liquid cooling unit and the liquid cooling part, and efficient temperature control is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery compartments, in particular to a high-voltage box for an energy storage battery. Background Art

[0002] The high-voltage box of an energy storage battery is a core component in an energy storage battery system. Its primary function is to provide a safe operating environment and stable power output for the energy storage battery. During the charging and discharging process, the high-voltage box generates a large amount of heat from the battery modules, causing a significant temperature rise. If this heat cannot be dissipated promptly and effectively, the high temperature will directly have an adverse effect on the battery modules. Utility Model Content

[0003] The utility model provides a high-voltage box for energy storage batteries, which is used to solve the defect in the prior art that the battery modules generate a large amount of heat. By providing an inner cavity and two opposite side cavities, the box can effectively separate and manage the battery modules and the liquid cooling part. Based on the liquid cooling unit and the liquid cooling part, the coolant can flow through each battery module to achieve efficient temperature control.

[0004] The energy storage battery high-voltage box provided by the utility model includes:

[0005] The chassis comprises an inner cavity and two side cavities, wherein the two side cavities are respectively arranged on both sides of the inner cavity;

[0006] a liquid cooling unit, disposed in the inner cavity;

[0007] A plurality of battery modules are spaced apart along the cavity of the inner cavity;

[0008] a liquid cooling unit, one end of which is connected to the output end of the liquid cooling unit and the other end of which is connected to the input end of the liquid cooling unit, the liquid cooling unit being provided through the lower portion and / or both sides of each battery module, and being used to cool the battery module;

[0009] The controller is arranged in the chassis and is electrically connected to the liquid cooling unit, the battery module and the liquid cooling part respectively.

[0010] According to the energy storage battery high-voltage box provided by the present invention, the liquid cooling part includes a liquid outlet pipe, a liquid return pipe and a branch pipe. The liquid outlet pipe is located in the side cavity on one side of the battery module, and the liquid return pipe is located in the side cavity on the other side of the battery module. The liquid outlet pipe is connected to the output end of the liquid cooling unit, and the liquid return pipe is connected to the input end of the liquid cooling unit. The number of the branch pipes corresponds to the number of the battery modules, one end of the branch pipe is connected to the liquid outlet pipe, and the other end is connected to the liquid return pipe, and the branch pipes and the battery modules are alternately arranged along the cavity of the inner cavity.

[0011] According to the energy storage battery high-voltage box provided by the utility model, the branch pipe includes a serpentine pipe.

[0012] According to the energy storage battery high-voltage box provided by the present invention, the liquid cooling part also includes a solenoid valve, the number of the solenoid valves corresponds to the number of the branch pipes, the solenoid valves are arranged between the branch pipes and the liquid outlet pipes, and the solenoid valves are electrically connected to the controller.

[0013] According to the energy storage battery high-voltage box provided by the present invention, the liquid cooling part also includes a temperature sensor, the number of the temperature sensors corresponds to the number of the branch pipes, the temperature sensor is arranged between the branch pipe and the return liquid pipe, and the temperature sensor is electrically connected to the controller.

[0014] According to the energy storage battery high-voltage box provided by the utility model, the energy storage battery high-voltage box also includes a grid, the number of the grids corresponds to the number of the branch pipes, the grids are horizontally arranged at the upper and lower parts of the branch pipes, and are fixedly connected to the inner side wall of the inner cavity.

[0015] According to the energy storage battery high-voltage box provided by the utility model, it also includes fixing parts, the number of which corresponds to the number of the battery modules, the fixing parts are respectively arranged at both ends of the battery modules and are fixedly connected to the inner wall of the inner cavity, and the battery module is suitable for being placed in the inner cavity through the fixing parts.

[0016] According to the energy storage battery high-voltage box provided by the present invention, the energy storage battery high-voltage box further includes a display screen, which is arranged on the outer side wall of the box and is electrically connected to the controller.

[0017] According to the energy storage battery high-voltage box provided by the present invention, the energy storage battery high-voltage box further includes a plurality of legs, and the legs are arranged at the bottom of the box.

[0018] Compared with the prior art, the beneficial effect of the present invention is that the chassis effectively separates and manages the battery module and the liquid cooling part by providing an inner cavity and two opposite side cavities. Based on the liquid cooling unit and the liquid cooling part, the coolant can flow through each battery module to achieve efficient temperature control. In addition, by arranging the liquid cooling part between the battery modules and on both sides of the battery module, a uniform heat dissipation effect can be ensured to prevent local overheating. The circulation design of the liquid cooling part further improves the cooling efficiency, ensures that the battery module operates at the optimal temperature, and thus extends its service life. The controller is integrated in the chassis, and through electrical connection with the liquid cooling unit, battery module and liquid cooling part, it can realize intelligent monitoring and adjustment of the entire chassis, ensure stability and safety, optimize space utilization, improve heat dissipation efficiency, and enhance the overall performance and safety of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the internal structure of the energy storage battery high-voltage box provided in an embodiment of the present utility model;

[0021] Figure 2 A front view of the internal structure of the energy storage battery high-voltage box provided in an embodiment of the utility model;

[0022] Figure 3 A schematic structural diagram of a high-voltage box for an energy storage battery provided in an embodiment of the present utility model;

[0023] Figure 4 This is a structural diagram of a fixing member provided in an embodiment of the utility model.

[0024] Figure numerals: 100: chassis; 110: inner cavity; 120: side cavity; 200: liquid cooling unit; 300: battery module; 400: fixing part; 500: liquid cooling part; 511: liquid outlet pipe; 512: branch pipe; 520: liquid return pipe; 530: solenoid valve; 540: temperature sensor; 600: controller; 700: grid; 800: display screen; 900: support leg. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0028] In the description of this application, 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 can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] The high-voltage box for energy storage batteries is a core component in energy storage battery systems. Its primary function is to provide a safe operating environment and stable power output for the batteries. Typically constructed of steel plates, the box houses the battery pack and electronic controller. It also needs to be explosion-proof, fireproof, and anti-theft. The battery pack inside the box must be properly positioned, and heat dissipation must be considered to ensure proper function. Fire and explosion-proof measures must also be implemented to protect the battery pack and electronic controller.

[0030] During the charging and discharging process of the energy storage battery's high-voltage box, the battery modules generate a significant amount of heat, causing a significant temperature rise. If this heat cannot be dissipated promptly and effectively, the high temperature will directly adversely affect the battery modules. First, high temperatures accelerate the instability of the battery's internal chemical reactions, leading to a rapid decline in battery performance and accelerated capacity decay. Second, prolonged exposure to high temperatures may cause the battery's electrolyte to decompose or volatilize, increasing the battery's internal resistance and even leading to thermal runaway. Thermal runaway not only causes rapid battery damage but also poses safety hazards such as fire or explosion. Furthermore, in high-temperature environments, the battery's outer shell material and internal structure may also experience subtle deformations or cracks due to thermal expansion and contraction, further compromising the structural integrity and long-term stability of the battery module. Therefore, failure to effectively control the temperature rise during the charging and discharging process will seriously affect the battery module's service life and the safety and reliability of the overall energy storage system.

[0031] See Figure 1-4As shown, the embodiment of the present invention provides a high-voltage box for energy storage batteries, which aims to solve at least one of the above-mentioned technical problems. The high-voltage box for energy storage batteries provided by the embodiment of the present invention includes a chassis 100, which includes an inner cavity 110 and a side cavity 120. There are two side cavities 120, which are arranged on both sides of the inner cavity 110 and are arranged opposite to each other; a liquid cooling unit 200, which is arranged on the top of the inner cavity 110; a plurality of battery modules 300, which are arranged in sequence from top to bottom at the lower part of the liquid cooling unit 200, and the battery modules 300 are also connected by fixing members 400. Fixed on the inner wall of the inner cavity 110; the liquid cooling part 500, one end of which is connected to the output end of the liquid cooling unit 200, and the other end of the liquid cooling part 500 is connected to the input end of the liquid cooling unit 200, and the liquid cooling part 500 is also located at the bottom and both sides of each battery module 300, and the liquid cooling part 500 is used to cool the battery module 300; the controller 600 is arranged in the chassis 100, and the controller 600 is electrically connected to the liquid cooling unit 200, the battery module 300 and the liquid cooling part 500.

[0032] It can be understood that the chassis 100 effectively separates and manages the battery module 300 and the liquid cooling unit 500 by providing an inner cavity 110 and two opposite side cavities 120. The liquid cooling unit 200 is located at the top of the inner cavity 110, so that the coolant can flow from top to bottom through each battery module 300 to achieve efficient temperature control. The battery module 300 is fixed on the inner wall of the inner cavity 110 to ensure the stability of the structure. At the same time, the arrangement of the liquid cooling unit 500 at the bottom and both sides of the battery module 300 ensures uniform heat dissipation and prevents local overheating. The circulation design of the liquid cooling unit 500 further improves the cooling efficiency, ensures that the battery module 300 operates at the optimal temperature, and thus extends its service life. The controller 600 is integrated into the chassis 100. Through electrical connection with the liquid cooling unit 200, the battery module 300 and the liquid cooling part 500, it realizes intelligent monitoring and adjustment of the entire chassis 100, ensures stability and safety, optimizes space utilization, improves heat dissipation efficiency, and enhances the overall performance and safety of the battery module 300.

[0033] In some embodiments of the present application, the liquid cooling unit 500 includes a liquid outlet pipe 511, a liquid return pipe 520 and a branch pipe 512. One end of the liquid outlet pipe 511 is connected to the output end of the liquid cooling unit 200. The liquid outlet pipe 511 is arranged in the side cavity 120 on one side of the battery module 300. There are several branch pipes 512. The branch pipes 512 are arranged at the lower part of each battery module 300. One end of the branch pipe 512 is connected to the liquid outlet pipe 511; the liquid return pipe 520 is arranged on the side of the battery module 300 away from the liquid outlet pipe 511. The liquid return pipe 520 is also located in the side cavity 120 away from the liquid outlet pipe 511. The liquid return pipe 520 is connected to the liquid outlet pipe 511. The liquid return pipe 520 is also connected to the input end of the liquid cooling unit 200.

[0034] It can be understood that the liquid cooling unit 500 optimizes the circulation path of the coolant through the liquid outlet pipe 511 and the liquid return pipe 520. The liquid outlet pipe 511 is arranged in the side cavity 120 on one side of the battery module 300, so that the coolant can be evenly distributed from the output end of the liquid cooling unit 200 to each branch pipe 512, and then flow to the lower part of each battery module 300 through the branch pipe 512, ensuring that the coolant can effectively cover the core part of the battery module 300. The liquid return pipe 520 is located in the side cavity 120 on the side of the battery module 300 away from the liquid outlet pipe 511, and is responsible for collecting and guiding the coolant after passing through the battery module 300 back to the liquid cooling unit 200 to form a complete circulation system. The coolant can flow along a precise path to achieve uniform cooling of the battery module 300, effectively reduce local temperature rise, and optimize the cooling efficiency and the overall performance of the liquid cooling system. Not only the heat dissipation effect is improved, but also the waste of coolant is reduced, the service life of the battery module 300 is extended, and the reliability and safety are enhanced.

[0035] In some embodiments of the present application, the branch pipes 512 are configured as serpentine pipes, which are arranged in a winding manner between every two battery modules 300 .

[0036] It is understandable that the branch pipe 512 is designed as a serpentine pipe and is arranged in a winding manner between every two battery modules 300, thereby enhancing the flow coverage of the coolant around the battery module 300. The layout of the serpentine branch pipe 512 increases the path length of the coolant in contact with the battery module 300, ensuring that the coolant can more evenly absorb and carry away the heat generated by the battery module 300, and prevent the occurrence of local overheating. In addition, the serpentine pipe design helps to slow down the flow rate of the coolant and extend its contact time with the battery module 300, thereby improving the heat dissipation efficiency. Not only can more effective temperature control be achieved and the service life of the battery module 300 be extended, but the cooling performance and reliability of the entire liquid cooling system can also be improved.

[0037] In some embodiments of the present application, the liquid cooling unit 500 further includes a plurality of solenoid valves 530 , and each branch pipe 512 is provided with a solenoid valve 530 at one end close to the liquid outlet pipe 511 . The solenoid valve 530 is electrically connected to the controller 600 .

[0038] In some embodiments of the present application, the liquid cooling unit 500 further includes a temperature sensor 540 , of which several are provided. A temperature sensor 540 is provided at one end of each branch pipe 512 close to the liquid return pipe 520 , and the temperature sensor 540 is electrically connected to the controller 600 .

[0039] As will be appreciated, the liquid cooling unit 500 integrates a solenoid valve 530 and a temperature sensor 540 to intelligently monitor and control the flow and temperature of the coolant. Each branch pipe 512 is equipped with a solenoid valve 530 at one end near the outlet pipe 511 and a temperature sensor 540 at one end near the return pipe 520. Both are electrically connected to the controller 600. The temperature sensor 540 monitors the coolant temperature at each battery module 300 in real time and transmits this information to the controller 600. Based on this data, the controller 600 can precisely adjust the solenoid valve 530 in the corresponding branch pipe 512, dynamically adjusting the coolant flow rate to ensure that the temperature of each battery module 300 remains within the optimal range. This closed-loop control system not only improves cooling efficiency and heat dissipation, but also effectively prevents overheating and temperature unevenness in the battery modules 300. By optimizing the coolant distribution path and flow rate, the service life of the battery modules 300 is significantly improved, while also enhancing the safety, stability, and energy efficiency of the overall chassis 100.

[0040] In some embodiments of the present application, the energy storage battery high-voltage box also includes a grid 700, of which several are provided. The grids 700 are horizontally arranged at the upper and lower parts of the branch pipe 512, and the grids 700 are also fixed on the inner wall of the inner cavity 110.

[0041] It is understood that the energy storage battery high-voltage box incorporates several grids 700, horizontally arranged above and below the branch pipes 512 and fixed to the inner wall of the inner cavity 110. This increases the structural stability of the battery module 300 and branch pipes 512, effectively supporting and securing the various components, and preventing displacement or damage due to vibration or impact during transportation or operation. Furthermore, the permeability of the grids 700 ensures unimpeded flow of coolant around the branch pipes 512 and battery module 300, without hindering the heat dissipation process, ensuring that the system's heat dissipation efficiency is not affected, and enhancing the overall safety and reliability of the high-voltage box.

[0042] In some embodiments of the present application, the fixing member 400 is an L-shaped fixing bar, the angle of the fixing bar is clamped on the edge of the battery module 300 , and the fixing bar is also fixed to the inner wall of the inner cavity 110 .

[0043] It can be understood that by using an L-shaped fixing bar to secure the battery module 300 to the inner wall of the inner cavity 110, the fixing effect of the battery module 300 is further enhanced. The angle of the fixing bar is precisely fixed to the edge of the battery module 300, ensuring the firm positioning of the module in the inner cavity 110 and preventing displacement or loosening due to vibration, impact or other external forces. The design of this L-shaped fixing bar not only simplifies the installation and disassembly process of the battery module 300, but also reduces the physical stress that may be caused to the module during installation. In addition, the fixing bar is firmly connected to the inner wall of the inner cavity 110, providing additional structural support, improving the mechanical stability and durability of the entire high-voltage box, thereby enhancing the safety and reliability of the equipment and extending the service life of the equipment.

[0044] In some embodiments of the present application, the energy storage battery high-voltage box further includes a display screen 800 , which is disposed on the outer side wall of the box 100 , and the display screen 800 is electrically connected to the controller 600 .

[0045] It is understandable that a display screen 800 is added to the high-voltage box of the energy storage battery, which is arranged on the outer wall of the chassis 100 and is electrically connected to the controller 600. It provides the user with an intuitive interface that can display key parameters such as the status, temperature, coolant flow, etc. of the battery module 300 in real time. Through the display screen 800, the operator can quickly monitor the operating status of the equipment, promptly detect and handle potential faults or abnormal conditions, and reduce downtime and maintenance costs. In addition, the display screen 800 can also display alarm information and operation logs, which improves the operational convenience and safety of the equipment. Overall, the integration of the display screen 800 makes the entire high-voltage box structure more intelligent, enhances the user's control and management capabilities of the equipment, and thus improves reliability and efficiency.

[0046] In some embodiments of the present application, the energy storage battery high-voltage box further includes a plurality of legs 900 , and the legs 900 are arranged at the bottom of the box 100 .

[0047] As can be understood, first, the legs 900 provide a secure support for the chassis 100, improving the stability of the entire device. This effectively prevents the chassis 100 from tilting or moving, particularly in environments with uneven ground or high vibration. Secondly, the legs 900 isolate the chassis 100 from the ground, providing a certain height clearance. This not only facilitates ventilation and heat dissipation, reduces the impact of dust accumulation on the equipment, and facilitates cleaning and maintenance of the lower part. Preferably, the legs 900 are height-adjustable, allowing the height of the chassis 100 to be fine-tuned according to on-site requirements, further enhancing installation flexibility and adaptability.

[0048] Working principle of the present invention: After the equipment is started, the liquid cooling unit 200 starts to operate, and the coolant is transported from the output end through the liquid outlet pipe 511 to each branch pipe 512. The serpentine branch pipe 512 ensures that the coolant evenly covers the lower part of each battery module 300 and absorbs the heat generated by it. The temperature sensor 540 monitors the temperature of the coolant in real time and feeds the data back to the controller 600. The controller 600 adjusts the switching state of the solenoid valve 530 accordingly, accurately controls the coolant flow, and keeps the battery module 300 within the optimal temperature range. The cooled liquid flows back to the liquid cooling unit 200 through the return pipe 520 to complete the cooling cycle. At the same time, the support legs 900 at the bottom of the chassis 100 provide stable support to ensure stable operation of the chassis 100 and maintain good ventilation conditions. The display screen 800 displays the system status and temperature data in real time for operators to monitor and manage.

[0049] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0050] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A high-voltage box for energy storage batteries, characterized in that: include: The chassis comprises an inner cavity and two side cavities, wherein the two side cavities are respectively arranged on both sides of the inner cavity; a liquid cooling unit, disposed in the inner cavity; A plurality of battery modules are spaced apart along the cavity of the inner cavity; a liquid cooling unit, one end of which is connected to the output end of the liquid cooling unit and the other end of which is connected to the input end of the liquid cooling unit, the liquid cooling unit being provided through the lower portion and / or both sides of each battery module, and being used to cool the battery module; The controller is arranged in the chassis and is electrically connected to the liquid cooling unit, the battery module and the liquid cooling part respectively.

2. The energy storage battery high-voltage box according to claim 1, characterized in that: The liquid cooling part includes a liquid outlet pipe, a liquid return pipe and a branch pipe. The liquid outlet pipe is located in the side cavity on one side of the battery module, and the liquid return pipe is located in the side cavity on the other side of the battery module. The liquid outlet pipe is connected to the output end of the liquid cooling unit, and the liquid return pipe is connected to the input end of the liquid cooling unit. The number of the branch pipes corresponds to the number of the battery modules. One end of the branch pipe is connected to the liquid outlet pipe, and the other end is connected to the liquid return pipe. The branch pipes and the battery modules are alternately arranged along the cavity of the inner cavity.

3. The energy storage battery high-voltage box according to claim 2, characterized in that: The branch pipe includes a serpentine pipe.

4. The energy storage battery high-voltage box according to claim 2, characterized in that: The liquid cooling unit further includes solenoid valves, the number of which corresponds to the number of the branch pipes, the solenoid valves are arranged between the branch pipes and the liquid outlet pipes, and the solenoid valves are electrically connected to the controller.

5. The energy storage battery high-voltage box according to claim 2, characterized in that: The liquid cooling unit further includes a temperature sensor. The number of the temperature sensors corresponds to the number of the branch pipes. The temperature sensor is disposed between the branch pipes and the liquid return pipe, and the temperature sensor is electrically connected to the controller.

6. The energy storage battery high-voltage box according to claim 2, characterized in that: The energy storage battery high-voltage box also includes a grid, the number of which corresponds to the number of the branch pipes. The grid is horizontally arranged at the upper and lower parts of the branch pipes and is fixedly connected to the inner side wall of the inner cavity.

7. The energy storage battery high-voltage box according to claim 1, characterized in that: It also includes fixing parts, the number of which corresponds to the number of the battery modules. The fixing parts are correspondingly arranged at both ends of the battery module and fixedly connected to the inner wall of the inner cavity. The battery module is suitable for being placed in the inner cavity through the fixing parts.

8. The energy storage battery high-voltage box according to claim 1, characterized in that: The energy storage battery high-voltage box also includes a display screen, which is arranged on the outer side wall of the box and is electrically connected to the controller.

9. The energy storage battery high-voltage box according to claim 1, characterized in that: The energy storage battery high-voltage box also includes a plurality of legs, which are arranged at the bottom of the box.

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