Liquid-cooled energy storage cabinet and charging pile

Abstract

The utility model discloses a liquid cooling energy storage cabinet and charging pile, through including battery compartment and power distribution compartment, battery compartment is used to accommodate energy storage electric core and is used to heat dissipation liquid cooling heat dissipation module for energy storage electric core, power distribution compartment is used to accommodate power distribution unit, and power distribution unit is used to distribute the electric energy of energy storage electric core output to control module, liquid cooling heat dissipation module and external output port in cabinet, and liquid cooling energy storage cabinet forms inner chamber, and the inner chamber is provided with the isolation baffle. The technical scheme is through setting up the isolation baffle with the physical barrier effect between battery compartment and power distribution compartment, effectively prevents condensate or coolant from infiltrating the power distribution area, avoids the damp short circuit of electrical element, improves the electrical safety and system stability of cabinet operation, in addition, the structure design of power distribution unit can be plugged and maintained from the panel direction, so that the routine maintenance device can be directly installed and replaced through the operation panel, and the maintainability of system is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a liquid-cooled energy storage cabinet and charging pile. Background Technology

[0002] Liquid-cooled energy storage battery cabinets are devices used to store and release electrical energy. To improve their operating efficiency and system safety, liquid cooling systems are commonly used to cool the battery cells. Liquid cooling technology uses liquid as the heat transfer medium, which has a high thermal conductivity and excellent heat exchange performance. Compared with traditional air-cooled systems, it can provide more stable temperature control in high power density environments. However, in liquid-cooled applications, water vapor in the air easily condenses on the surface of the low-temperature liquid-cooled components, forming water droplets, which then generate condensate inside the battery cabinet.

[0003] The condensate produced by the liquid-cooled energy storage system in the relevant technology may drip directly onto the distribution box, causing internal electrical components to become damp, short-circuited or damaged, affecting the stability of power supply and distribution. Utility Model Content

[0004] The main objective of this invention is to provide a liquid-cooled energy storage cabinet and charging pile to at least solve the technical problems in the background art.

[0005] To achieve the above objectives, a first aspect of this utility model provides a liquid-cooled energy storage cabinet, the liquid-cooled energy storage cabinet comprising:

[0006] A battery compartment for accommodating energy storage cells and a liquid cooling module for dissipating heat from the energy storage cells;

[0007] The power distribution compartment is used to house the power distribution unit; the power distribution unit is used to distribute the electrical energy output by the energy storage cell to the control module, liquid cooling module and external output port in the cabinet; wherein, the external output port is used to electrically connect to an external charging pile;

[0008] The liquid-cooled energy storage cabinet has an inner cavity, and an isolation baffle is provided in the inner cavity. The isolation baffle is used to physically isolate the battery compartment and the power distribution compartment in the inner cavity to prevent the liquid generated by the liquid cooling module in the battery compartment from entering the power distribution compartment.

[0009] Based on the first aspect, the isolation baffle is used to spatially divide the inner cavity into a first inner cavity and a second inner cavity that are distributed vertically.

[0010] The battery compartment is located in the first inner cavity, and the power distribution compartment is located in the second inner cavity.

[0011] Based on the first aspect, the isolation baffle is detachably connected to the surface of the inner cavity.

[0012] Based on the first aspect, the power distribution unit is equipped with a mounting plate that can be maintained from the cabinet operation side, and the mounting plate is detachably connected to the power distribution unit.

[0013] Based on the first aspect, the mounting plate is connected to the power distribution unit by screws.

[0014] Based on the first aspect, the liquid-cooled energy storage cabinet is equipped with an automatic exhaust structure for combustible gas;

[0015] The automatic combustible gas exhaust structure is used to automatically exhaust gas when the internal combustible gas concentration reaches a preset threshold.

[0016] Based on the first aspect, the automatic combustible gas exhaust structure includes a combustible gas detector and an exhaust device electrically connected thereto;

[0017] When the combustible gas detector detects that the concentration of combustible gas inside the cabinet reaches a preset threshold, it controls the exhaust device to automatically turn on in order to expel the gas inside the cabinet.

[0018] Based on the first aspect, the liquid-cooled energy storage cabinet is equipped with a pressure relief device;

[0019] The pressure relief device includes insulation cotton for sealing the exhaust channel and screws for fixing the insulation cotton to the cabinet.

[0020] The insulation cotton is designed to automatically rupture when the internal gas pressure of the cabinet reaches a preset threshold, so as to release the gas through the exhaust channel.

[0021] Based on the first aspect, the exhaust channel includes a vent, which is located on the surface of the liquid-cooled energy storage cabinet near the operating side of the cabinet.

[0022] A second aspect of this utility model provides a charging pile, including a charging pile body and a liquid-cooled energy storage cabinet as described in the first aspect.

[0023] This utility model discloses a liquid-cooled energy storage cabinet and charging pile. By installing an isolation baffle that provides physical barrier between the battery compartment and the power distribution compartment, it effectively isolates the liquid generated during the operation of the liquid-cooled heat dissipation module from the power distribution system. This effectively prevents condensate or coolant from seeping into the power distribution area, avoiding short circuits caused by moisture in electrical components, and improving the electrical safety and system stability of the cabinet operation. Simultaneously, the power distribution unit is located in an independent power distribution compartment, which can supply power to the control modules and liquid cooling system inside the cabinet, and also connects to an external charging pile via an external output port to meet high-power energy storage output requirements and improve energy utilization efficiency. Furthermore, the power distribution unit adopts a structure design that allows for plug-and-play maintenance from the panel side, enabling the installation and replacement of frequently maintained components directly through the operation panel, significantly improving the system's maintainability and ease of construction. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the internal structure of a liquid-cooled energy storage cabinet provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the electrical connection of the liquid-cooled energy storage cabinet and the charging pile in the embodiments of this application;

[0027] Figure 3 This is a three-dimensional structural schematic diagram of the power distribution unit 13 in the embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the internal structure of a liquid-cooled energy storage cabinet provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the overall structure of the liquid-cooled energy storage cabinet provided in the embodiments of this application.

[0030] Reference numerals in the attached diagram: 1. Liquid-cooled energy storage cabinet; 2. Charging pile; 12. Power distribution unit; 13. Energy storage cell; 14. Control module; 15. Liquid-cooled heat dissipation module; 16. External output port; 17. Pressure relief device; 18. Cell module tray; 19. Automatic ventilation structure for combustible gas; 20. Isolation baffle; 30. Battery compartment; 40. Power distribution compartment; 50. Ventilation opening; 121. Mounting plate; 122. Pull-out structure; 123. Heat dissipation channel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that related terms such as "first" and "second" can be used to describe various components, but these terms do not limit the component. These terms are only used to distinguish one component from another. For example, without departing from the scope of this utility model, the first component can be referred to as the second component, and the second component can similarly be referred to as the first component. The term "and / or" refers to any one or more combinations of related and descriptive terms.

[0033] Please see Figures 1 to 2 This application provides a liquid-cooled energy storage cabinet 1, which is suitable for energy storage management and high-power energy output scenarios in new energy charging systems. It has an internal cavity, which is provided with at least a battery compartment 30 and a power distribution compartment 40.

[0034] The battery compartment 30 is located roughly in the upper part of the inner cavity near the top of the cabinet. It is used to accommodate multiple energy storage cells 13 or battery modules, and a liquid cooling heat dissipation module 15 is integrated within the battery compartment. The liquid cooling heat dissipation module 15 uses liquid as a heat transfer medium and is in direct or indirect contact with the cells. It manages the temperature of the energy storage cells 13 through a circulating cooling method to ensure the safety and thermal stability of the energy storage system during high-power operation.

[0035] The power distribution compartment 40 is located in the lower part of the inner cavity near the bottom of the cabinet. It is used to house the power distribution unit 12, which is electrically connected to the energy storage cell 13 in the battery compartment 30. The power distribution unit 12 distributes the electrical energy released by the energy storage cell 13 to the control module 14, liquid cooling heat dissipation module 15 and external output port 16 inside the cabinet as needed, and outputs it to the external charging pile 2 through the external output port 16, realizing energy interaction between the energy storage and the charging pile.

[0036] It should be noted that the power distribution unit 12 generally refers to an electrical structure module that distributes, protects, controls, and transmits electrical energy from the power source or energy storage cell 13 according to system load requirements. It typically includes, but is not limited to, circuit breakers, relays, contactors, fuses, terminal blocks, current and voltage sensors, etc. Additionally, the external output port 16 connects to an external charging pile system via a standardized cable connection interface to achieve efficient and stable power transmission. Furthermore, the control module 14, as a control device with control functions within the cabinet, is used to monitor battery status, temperature, charge / discharge management, and alarm response, working in conjunction with the power distribution unit 12 to achieve intelligent scheduling of the energy storage system.

[0037] An isolation baffle 20 is installed at a preset installation position in the inner cavity. The isolation baffle 20 is used to physically isolate the battery compartment 30 and the power distribution compartment 40 in the inner cavity to prevent the liquid generated by the liquid cooling heat dissipation module 15 in the battery compartment 30 from entering the power distribution compartment 40.

[0038] It should be further explained that when the liquid cooling heat dissipation module 15 is used to cool the inside of the battery compartment 30, water vapor in the air will condense into water droplets, resulting in condensation around the liquid cooling heat dissipation module 15.

[0039] This embodiment of the application achieves effective isolation between the battery compartment 30 and the power distribution compartment 40 by setting an isolation baffle 20 with physical barrier function between the battery compartment 30 and the power distribution compartment 40. This effectively prevents liquid (condensate) generated during the operation of the liquid cooling heat dissipation module 15 from seeping into the power distribution area of ​​the power distribution compartment 40, avoiding electrical components from getting damp and short-circuiting, and improving the electrical safety and system stability of the cabinet operation. At the same time, the power distribution unit 13 is set in an independent power distribution compartment 40, which can not only supply power to the control module 14 and the liquid cooling heat dissipation module 15 inside the cabinet, but also connect to the external charging pile through the external output port 16 to meet the high-power energy storage output requirements and improve energy utilization efficiency.

[0040] In an optional embodiment of this application, the isolation baffle 20 can be arranged horizontally in the inner cavity near the center line, and spatially divide the inner cavity into a first inner cavity and a second inner cavity that are distributed vertically.

[0041] Specifically, the battery compartment is located in the first inner cavity, and the power distribution compartment is located in the second inner cavity. In this embodiment, the isolation baffle 20 spatially isolates the high-heat source area (battery compartment) from the high-voltage area (power distribution compartment), effectively reducing the potential impact of condensate and seepage from the liquid cooling system on electrical equipment. Simultaneously, this vertical layout simplifies wiring paths and improves system integration and maintenance convenience.

[0042] In an optional embodiment of this application, the isolation baffle 20 is detachably connected to the surface of the inner cavity.

[0043] Specifically, the isolation baffle 20 can be fixed to the side wall of the cabinet cavity using multiple detachable fasteners such as screws, bolts, or clips, forming a stable horizontal partition structure. These detachable fasteners ensure the structural strength and sealing effect of the isolation baffle 20 during operation, while also facilitating later maintenance, repair, or replacement. Furthermore, to ensure good airtightness and liquid isolation even in the detachable state, flexible sealing gaskets, flame-retardant insulating strips, or waterproof adhesive strips can be installed on the edges of the isolation baffle 20 to form a tight seal with the inner cavity side wall. This structure balances ease of assembly and disassembly with operational safety, making it particularly suitable for energy storage systems requiring periodic maintenance.

[0044] It should be noted that the isolation baffle 20 is made of an insulating, moisture-proof, and flame-retardant composite material. Its edges are equipped with flexible sealing strips, allowing for a close fit with the internal structure of the cabinet, further enhancing the physical isolation between the battery compartment and the power distribution compartment, preventing condensate, gas, or heat from penetrating from the battery compartment into the power distribution compartment. Additionally, the baffle thickness is preferably greater than 40mm to improve thermal insulation and structural rigidity. It can also be securely installed using positioning bosses or screws to ensure operational stability.

[0045] Please see Figure 3 The power distribution unit 12 can be a power distribution box, which is equipped with a mounting plate 121 that can be maintained from the operating side of the cabinet. The mounting plate 121 is detachably connected to the power distribution unit 13 so that the internal functional modules can be plugged in and maintained from the panel direction, so that maintenance personnel can perform front maintenance operations without disassembling the entire cabinet structure.

[0046] Specifically, the mounting plate 121 can be detachably connected to the power distribution unit 12 via screws, allowing for convenient installation or removal according to maintenance needs. Additionally, the mounting plate 121 features a pull-out structure 122, enabling maintenance personnel to directly grab and pull out the power distribution module from the front of the cabinet without disassembling the cabinet housing or top structure. The power distribution unit 12 also includes a heat dissipation channel 123 for effective heat exchange between the module's interior and exterior air.

[0047] Please see Figure 4 The liquid-cooled energy storage cabinet is equipped with a pressure relief device 17, which includes insulation cotton for sealing the exhaust passage and screws for fixing the insulation cotton to the cabinet.

[0048] Specifically, the pressure relief device 17 is located in the inner cavity near the battery compartment 30. Under normal operating conditions, the insulation cotton is firmly fixed to the cabinet with screws to seal the pressure relief channel and prevent dust, impurities or small particles from entering the cabinet. When the internal pressure of the energy storage system rises due to abnormal heating or gas generation and reaches the set threshold, the insulation cotton will be ruptured by the internal pressure, thereby opening the exhaust channel (vent 50 near the cabinet side) to achieve rapid pressure relief and prevent high-pressure gas from causing damage to the internal structure and personnel.

[0049] In an optional embodiment of this application, the inner cavity sidewall of the battery compartment 30 is provided with a plurality of cell module trays 18, which are used for layered support and positioning of a plurality of energy storage cells.

[0050] Specifically, each cell module tray 18 corresponds to one energy storage cell mounting position, accommodating standard-sized energy storage cell components, and is precisely positioned via a limiting structure or sliding rail mechanism. To improve the modular installation and maintenance efficiency of the system, the cell module tray 18 preferably adopts a pull-out structure design. Maintenance personnel can slide the cell module out of the cabinet along the guide rail by pulling it out, facilitating replacement, repair, or condition inspection, avoiding complete disassembly, and reducing maintenance workload.

[0051] In addition, an anti-wear plate is added to the top of the battery cell module tray 18. During the installation or removal of the battery cell module, due to the sliding or contact friction between the module and the tray, the added anti-wear plate can not only effectively prevent scratches, collisions and paint peeling, but also play a certain role in buffering and shock absorption, improving the safety and smoothness of the module assembly process.

[0052] Please see Figure 5 The liquid-cooled energy storage cabinet is equipped with an automatic exhaust structure for combustible gas 19.

[0053] Specifically, the automatic combustible gas exhaust structure 19 includes a combustible gas detector installed inside the cabinet and an exhaust device electrically connected to the detector. During operation, the combustible gas detector monitors the concentration of combustible gases, such as hydrogen and carbon monoxide, in the air inside the cabinet in real time. When the detector detects that the gas concentration reaches or exceeds a preset safety threshold, it immediately outputs an electrical signal to the control module 14. In response to this signal, the exhaust port automatically opens to force exhaust, rapidly reducing the gas concentration inside the cabinet, thus effectively intervening before the critical explosion concentration is triggered.

[0054] This application also provides a charging pile, including a charging pile body and a liquid-cooled energy storage cabinet as described in the first aspect.

[0055] The liquid-cooled energy storage cabinet and charging pile of this application embodiment achieve effective isolation between the liquid generated by the liquid cooling module during operation and the power distribution system by setting an isolation baffle with physical barrier between the battery compartment and the power distribution compartment. This effectively prevents condensate or coolant from seeping into the power distribution area, avoids electrical components from getting damp and short-circuiting, and improves the electrical safety and system stability of the cabinet operation. At the same time, the power distribution unit is set in an independent power distribution compartment, which can not only supply power to the control module and liquid cooling system inside the cabinet, but also connect to the external charging pile through the external output port to meet the high-power energy storage output requirements and improve energy utilization efficiency. In addition, the power distribution unit adopts a structural design that allows for plug-and-play maintenance from the panel side, so that commonly maintained components can be directly installed and replaced through the operation panel, which significantly improves the maintainability and construction convenience of the system.

[0056] In addition, the embodiments of this application also have the following beneficial effects: 1) It can reduce safety risks such as short circuits, and at the same time, the cold and heat isolation can better ensure the temperature difference of the battery cells; 2) Front maintenance of the power distribution unit can reduce the workload of personnel operation, thereby reducing maintenance and production costs; 3) The addition of system-level pressure relief equipment and internal pressure relief structure to the cabinet can effectively increase the emission of combustible gases and increase the safety of the whole system; 4) The addition of anti-wear plates to the cabinet tray can prevent heavy objects such as battery packs and air conditioners from scratching the paint layer on the surface of the structural components, thereby improving the quality of the product.

[0057] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A liquid-cooled energy storage cabinet, characterized in that, The liquid-cooled energy storage cabinet includes: A battery compartment for accommodating energy storage cells and a liquid cooling module for dissipating heat from the energy storage cells; The power distribution compartment is used to house the power distribution unit; the power distribution unit is used to distribute the electrical energy output by the energy storage cell to the control module, liquid cooling module and external output port in the cabinet; wherein, the external output port is used to electrically connect to an external charging pile; The liquid-cooled energy storage cabinet has an inner cavity, and an isolation baffle is provided in the inner cavity. The isolation baffle is used to physically isolate the battery compartment and the power distribution compartment in the inner cavity to prevent the liquid generated by the liquid cooling module in the battery compartment from entering the power distribution compartment.

2. The liquid-cooled energy storage cabinet as described in claim 1, characterized in that, The isolation baffle is used to spatially divide the inner cavity into a first inner cavity and a second inner cavity that are distributed vertically. The battery compartment is located in the first inner cavity, and the power distribution compartment is located in the second inner cavity.

3. The liquid-cooled energy storage cabinet as described in claim 2, characterized in that, The isolation baffle is detachably connected to the surface of the inner cavity.

4. The liquid-cooled energy storage cabinet as described in claim 2, characterized in that, The power distribution unit is equipped with a mounting plate that can be maintained from the cabinet operation side, and the mounting plate is detachably connected to the power distribution unit.

5. The liquid-cooled energy storage cabinet as described in claim 4, characterized in that, The mounting plate is connected to the power distribution unit by screws.

6. The liquid-cooled energy storage cabinet as described in claim 5, characterized in that, The liquid-cooled energy storage cabinet is equipped with an automatic exhaust structure for combustible gas. The automatic combustible gas exhaust structure is used to automatically exhaust gas when the internal combustible gas concentration reaches a preset threshold.

7. The liquid-cooled energy storage cabinet as described in claim 6, characterized in that, The automatic combustible gas exhaust structure includes a combustible gas detector and an exhaust device electrically connected to it. When the combustible gas detector detects that the concentration of combustible gas inside the cabinet reaches a preset threshold, it controls the exhaust device to automatically turn on in order to expel the gas inside the cabinet.

8. The liquid-cooled energy storage cabinet as described in claim 6, characterized in that, The liquid-cooled energy storage cabinet is equipped with a pressure relief device; The pressure relief device includes insulation cotton for sealing the exhaust channel and screws for fixing the insulation cotton to the cabinet. The insulation cotton is designed to automatically rupture when the internal gas pressure of the cabinet reaches a preset threshold, so as to release the gas through the exhaust channel.

9. The liquid-cooled energy storage cabinet as described in claim 8, characterized in that, The exhaust channel includes a vent, which is located on the surface of the liquid-cooled energy storage cabinet near the operating side of the cabinet.

10. A charging pile, characterized in that, It includes the main body of the charging pile and the liquid-cooled energy storage cabinet as described in any one of claims 1 to 9.

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