A wall-type energy storage system

Abstract

The application discloses a wall type energy storage system and belongs to the technical field of energy storage. The system comprises a battery cabin module, an electrical cabin module and a blind insertion connection assembly; each module is configured as a flat structure and is spliced in a horizontal direction to form a wall shape. The application adopts a structure function integrated design: the support framework of the battery cabin is constructed by a hollow profile, the internal cavity is reused as a waste gas discharge channel, and the pressure relief port of the battery pack is connected through a pipeline; the modules are connected through a hierarchical blind insertion connection assembly, automatic conduction of the electrical circuit and installation guidance are realized, and fasteners are used for fixation; a gap is reserved between the outer decorative layer of the module and the outer wall to form a chimney effect heat dissipation air duct. The application solves the problems of internal wiring difficulty, poor heat dissipation and large space occupation of the pipeline of the traditional wall type energy storage equipment, and has the characteristics of convenient installation, high integration and good safety.

Description

Technical Field

[0001] This invention relates to the field of electrochemical energy storage technology, specifically to a wall-mounted energy storage system, and particularly to a modular energy storage system with an integrated structural and functional design, easy and quick assembly, and excellent heat dissipation performance. Background Technology

[0002] Commercial and industrial energy storage cabinets are key equipment in the new energy field, playing an important role in peak shaving and valley filling, power capacity expansion, and emergency backup power. With the expansion of application scenarios, energy storage systems are gradually moving from industrial parks to commercial centers, scenic spots, and high-end residential areas.

[0003] However, existing industrial and commercial energy storage systems mostly adopt standard container or vertical cabinet structures. When attempting to apply such systems to locations with high aesthetic requirements, existing technologies face irreconcilable contradictions: To save space and blend into the environment, energy storage systems tend to be designed in a flat, "wall-like" form. However, in extremely flat and narrow spaces (e.g., less than 300mm thick), traditional on-site wiring and piping operations become extremely difficult, resulting in low installation efficiency and challenging maintenance later on.

[0004] Furthermore, for aesthetic purposes, wall-mounted energy storage cabinets are often covered with decorative layers such as tiles or stone. These decorative layers increase thermal resistance, hindering natural heat dissipation from the cabinet surface and easily leading to heat buildup inside the battery compartment, affecting battery life. The wall structure requires a high-strength frame to prevent tipping, while battery thermal runaway safety protection requires the installation of large exhaust pipes. In the limited flat cross-section, the solid frame and gas pipes often conflict in terms of space, making it difficult to balance. Therefore, there is an urgent need for a new type of wall-mounted energy storage system that can solve the above-mentioned wiring and installation problems, effectively utilize the decorative layer to assist in heat dissipation, and achieve reuse of structural and piping space. Summary of the Invention

[0005] The purpose of this invention is to provide a wall-mounted energy storage system that, through integrated structural and functional design, enables blind-plug assembly of energy storage modules, reuse of the frame and exhaust channels, and natural convection heat dissipation of the decorative layer, thereby solving the problems of difficult installation, poor heat dissipation, and low space utilization of existing wall-mounted energy storage devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wall-mounted energy storage system, the system comprising a battery compartment module, an electrical compartment module, and a mounting base; The battery compartment module and the electrical compartment module are configured as a flat structure and are sequentially spliced ​​on the mounting base in the horizontal direction to form a continuous wall shape; A blind-fit connection assembly is provided between the battery compartment module and the electrical compartment module. The blind-fit connection assembly is configured to achieve automatic electrical circuit conduction while the two modules are spliced ​​and aligned. The modules are mechanically fixed together by fasteners. The battery compartment module includes a support frame constructed of hollow profiles. The internal cavities of the hollow profiles are connected to form an exhaust gas emission channel. The exhaust gas emission channel is connected to the pressure relief port of the battery pack through a connecting pipe, and is used to guide the gas generated by battery thermal runaway through the support frame to the exhaust gas treatment unit in the electrical compartment module.

[0007] Furthermore, the blind-fit connection assembly is configured as a hierarchical connection structure; the hierarchical connection structure includes a guide segment and a connecting segment in the splicing direction; the protruding length of the guide segment is greater than the protruding length of the connecting segment, and is configured to make priority contact during splicing to correct the alignment posture of the module, and then realize the connection of the electrical circuit.

[0008] Furthermore, decorative covers are provided on the outer sides of the battery compartment module and the electrical compartment module, and an air gap is reserved between the decorative covers and the outer wall of the module; The air gap is vertically continuous, forming a natural convection heat dissipation channel, and the bottom of the air gap is provided with an air inlet and the top is provided with a hidden air outlet.

[0009] Furthermore, the hollow profile inner wall of the supporting frame is provided with a high-temperature resistant and corrosion-resistant coating, and the exhaust gas emission channel is provided with a condensate collection structure on the path connecting to the exhaust gas treatment unit to collect the condensate generated during the exhaust gas transmission process.

[0010] Furthermore, the battery pack is installed in the support frame in a vertically stacked manner; One end of the connecting pipe is connected to the explosion-proof valve of the battery pack, and the other end is connected to the vent hole on the support frame to form a closed gas transmission path.

[0011] Furthermore, the electrical compartment module integrates a thermal management circulation system, which includes a circulation pump and a temperature sensor; a liquid cooling plate or liquid cooling pipe is provided on the outside of the battery pack, and the thermal management circulation system is connected to the liquid cooling plate or liquid cooling pipe through an external pipeline, and is configured to dynamically adjust the coolant flow rate according to the battery pack temperature detected by the temperature sensor.

[0012] Furthermore, the battery compartment module is equipped with a multi-functional composite detector, which is configured to detect temperature, smoke, or the concentration of a specific gas. When the composite detector detects abnormal high temperature or harmful gas signals, the system is configured to immediately start the fan in the exhaust gas treatment unit to perform exhaust treatment.

[0013] Furthermore, the system also includes an auxiliary fastener located on top of the battery compartment module; The auxiliary fastener is configured to connect the top of the support frame to the building wall or adjacent structure to prevent the energy storage system in the form of a wall from overturning.

[0014] Furthermore, the exhaust gas treatment unit within the electrical compartment module includes a cooling chamber and a filtration chamber arranged sequentially. The exhaust gas first enters the cooling chamber for cooling and spark extinguishing, and then enters the filtration chamber where it is filtered by filter cotton to intercept particulate matter.

[0015] Furthermore, the system is configured in a scalable, multi-module cascaded mode; Multiple battery compartment modules are configured to be connected in series along the horizontal direction via the blind-plug connection assembly, and are centrally controlled and managed by the same electrical compartment module.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By using blind-plug connection components and a hierarchical guidance design, the problem of not being able to start wiring and pipework in flat spaces is solved, enabling push-in connection and greatly improving construction efficiency. The hollow profile of the supporting frame is used as an exhaust channel, eliminating the need for a separate exhaust pipe, which allows the system to be made thinner while ensuring structural strength and safe exhaust.

[0017] By utilizing the gap between the decorative cover and the module to construct a chimney-effect air duct, the decorative layer that originally hindered heat dissipation is transformed into a natural convection system that assists in heat dissipation, reducing the risk of heat accumulation. In addition, it integrates temperature / gas monitoring and linkage cut-off mechanisms, which can cut off electrical connections and start exhaust gas treatment in the early stage of thermal runaway. Combined with the condensate collection structure in the frame, it significantly improves the safety and durability of the system. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall appearance of a wall-mounted energy storage system according to the present invention; Figure 2 This is an exploded view of the internal structure of the battery compartment module and the electrical compartment module in this invention; Figure 3This is a schematic diagram illustrating the structural principle of the blind-mating connection assembly in this invention; Figure 4 This is a flowchart illustrating the safety control logic and gas emission path in this invention. Figure 5 This is a cross-sectional view of the side of the wall in this invention.

[0020] In the picture: 100. Battery compartment module; 200. Electrical compartment module; 201. Composite detector; 202. Thermal management circulation system; 300. Mounting base; 400. Blind-fit connection assembly; 401. Guide section; 402. Connection section; 500. Support frame; 501. Exhaust gas emission channel; 502. Battery pack; 503. Condensate collection structure; 600. Exhaust gas treatment unit; 601. Cooling chamber; 602. Filter chamber; 700. Decorative cover; 800. Air gap; 801. Air inlet; 802. Air outlet; 900. Auxiliary fasteners. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Example 1

[0023] This embodiment provides a wall-mounted energy storage system with integrated structure and function, which aims to solve the technical problems of traditional energy storage equipment in terms of space utilization, installation efficiency and environmental integration.

[0024] like Figure 1-5 As shown, a wall-mounted energy storage system comprises a battery compartment module 100, an electrical compartment module 200, and a mounting base 300. Both the battery compartment module 100 and the electrical compartment module 200 are designed as thin, flat cubic structures, and can be sequentially placed horizontally on the prefabricated mounting base 300, visually and physically forming a continuous vertical wall. To prevent this wall structure with a significant height-to-width ratio from tipping over, an auxiliary fixing component 900 is specially installed on the top of the battery compartment module 100. The auxiliary fixing component 900 securely connects the top of the support frame 500 to the building wall behind it or an adjacent structural beam via L-shaped brackets or tie rods.

[0025] In this embodiment, a blind-mating connection assembly 400 is provided on the mating surface of the battery compartment module 100 and the electrical compartment module 200. The blind-mating connection assembly 400 adopts a hierarchical connection construction logic, specifically including a guide section 401 and a connecting section 402. The guide section 401 is composed of a long tapered guide pin provided on the side wall of the module. The end of the guide pin has a tapered chamfer, configured to provide a self-alignment function in the initial insertion stage. The connecting section 402 includes an electrical connector with an elastic floating mechanism. This elastic floating mechanism allows the connector to generate slight displacement in the horizontal and vertical directions to compensate for manufacturing and assembly tolerances. During installation, when the two modules approach each other, the longer protruding guide pin will insert into the corresponding guide hole first, which can forcibly correct the tilt or positional deviation that may occur during the handling of the module, realizing attitude correction. Subsequently, the electrical connector contacts and engages, realizing the electrical circuit conduction. After the modules are aligned and fitted, the installer uses bolts (fasteners) passing through the reserved holes in the support frame to mechanically lock and fix the battery compartment module and the electrical compartment module. The liquid cooling circuit is connected to the outside of the module via a reserved external interface using flexible hoses or rigid pipes.

[0026] To further reduce system thickness and improve safety, the battery compartment module 100 adopts a support frame 500 that integrates structure and exhaust. The support frame 500 is welded from high-strength hollow aluminum alloy profiles or rectangular steel tubes. The continuous cavities inside the profiles are no longer ineffective spaces, but are connected to form a network of exhaust gas channels 501. In order to prevent acidic exhaust gas from corroding the frame, the inner wall of the hollow profiles is pre-coated with a high-temperature resistant and anti-corrosion coating. The battery packs 502 are installed in the support frame 500 in a stacked manner. Ventilation holes are opened on the columns of the support frame 500 corresponding to the positions of the explosion-proof valves of each battery pack 502. In order to guide the exhaust gas, a high-temperature resistant gas guide pipe (connecting pipeline) is connected to the outlet of the explosion-proof valve of each battery pack 502. The other end of the gas guide pipe is connected to the ventilation hole (i.e., pipeline interface) on the column of the support frame 500, thereby constructing a closed gas transmission path from the inside of the battery pack 502 directly to the inner cavity of the support frame 500.

[0027] In addition, considering that condensation may occur due to temperature difference during long-distance transmission of exhaust gas, a condensate collection structure 503, such as a U-shaped water trap or a collection tank, is also processed at the low point of the path connecting the exhaust gas emission channel 501 to the exhaust gas treatment unit 600 to prevent liquid backflow from damaging the battery.

[0028] In a preferred embodiment, decorative covers 700 are installed on the outer surfaces of both the battery compartment module 100 and the electrical compartment module 200. The decorative covers 700 can be made of ceramic tiles, stone, or aluminum plates to suit the surrounding environment. The decorative covers 700 are not tightly fitted to the outer wall of the module; instead, a vertically penetrating air gap 800 is provided between the decorative covers 700 and the outer wall of the module via a connector. The bottom of this air gap 800 has an air inlet 801, and the top has a concealed air outlet 802. Specifically, the top of the decorative cover is higher than the top surface of the battery compartment module, forming an airflow channel that opens obliquely upwards or to the side and rear at the height difference. This makes the opening invisible and prevents rainwater from falling directly into the gap from the air outlet, thus utilizing the chimney effect to create a natural convection cooling channel. When the module surface generates heat radiation due to equipment operation, the air in the gap is heated, rises, and carries away the heat, thereby alleviating the heat accumulation problem caused by the decorative layer covering.

[0029] Example 2

[0030] like Figure 1-5 As shown, based on Embodiment 1, the electrical compartment module 200 integrates a thermal management circulation system 202, which mainly includes a circulation pump, a heat exchanger, and temperature sensors distributed in the pipeline.

[0031] The thermal management circulation system 202 is connected to the liquid cooling plate located on the outside of the battery pack through an external pipeline. During operation, the system will dynamically adjust according to the temperature data of the battery pack 502 detected in real time by the temperature sensor. For example, when the temperature of the battery pack 502 is within the normal range, the circulation pump maintains a low flow rate to save energy; when the temperature rises or the temperature difference is too large, the control system automatically increases the flow rate of the coolant flowing through the external pipeline to achieve rapid temperature uniformity.

[0032] In terms of safety protection, the electrical compartment module 200 also integrates a multi-functional composite detector 201. This detector is installed on the top of the battery compartment or in a critical location to monitor the temperature, smoke, and electrolyte leakage volatiles within the compartment in real time. When the composite detector 201 detects abnormally high temperatures or excessive concentrations of harmful gases, the system immediately issues a command to activate the fan in the exhaust gas treatment unit 600 for active air extraction and filtration. The exhaust gas treatment unit 600 is integrated in the top space of the electrical compartment module 200. Its inlet is connected to the exhaust channel of the support frame 500. The exhaust gas treatment unit 600 is designed with a two-stage treatment structure. The exhaust gas first enters the cooling chamber 601 and undergoes physical cooling and spark extinguishing treatment through the built-in metal flame arrestor and tortuous flow channel. Subsequently, the cooled gas enters the filtration chamber 602, where particulate matter and toxic components are intercepted by highly adsorbent filter cotton or activated carbon layer. Finally, the purified gas is safely discharged to the outside of the system. Through a mechanism that combines active monitoring and passive treatment, the safety of the wall-mounted energy storage system is improved.

[0033] Example 3

[0034] Based on the above embodiments, in order to meet the differentiated energy storage capacity requirements of different industrial and commercial scenarios, this system is configured as a scalable multi-module cascade mode.

[0035] In practical applications, users can select to configure one or more battery compartment modules 100 according to the length of the wall or the required power. Multiple battery compartment modules 100 can also be connected in series horizontally through standard blind-plug connection components 400.

[0036] In cascaded mode, the liquid cooling pipelines of adjacent battery compartment modules 100 are connected in series or in parallel, depending on the flow channel design and the transparent transmission of the communication bus. All series-connected battery compartment modules 100 share the same electrical compartment module 200 for centralized management. The battery management system (BMS) in the electrical compartment module 200 can automatically identify the number of connected battery compartments and adjust the charging and discharging strategies and thermal management parameters accordingly. Through modular cascaded design, the system can be flexibly expanded like building blocks. It can be used independently as a single wall or assembled into a large-scale energy storage wall array, which greatly improves the market adaptability and deployment flexibility of the product.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wall-mounted energy storage system, characterized in that, The system includes a battery compartment module (100), an electrical compartment module (200), and a mounting base (300). The battery compartment module (100) and the electrical compartment module (200) are configured as flat structures and are sequentially spliced ​​on the mounting base (300) in the horizontal direction to form a continuous wall shape; A blind-fit connection assembly (400) is provided between the battery compartment module (100) and the electrical compartment module (200). The blind-fit connection assembly (400) is configured to achieve automatic conduction of the electrical circuit while the battery compartment module (100) and the electrical compartment module (200) are spliced ​​and aligned. The modules are mechanically fixed together by fasteners. The battery compartment module (100) includes a support frame (500), which is constructed of hollow profiles. The internal cavity of the hollow profiles is connected to form an exhaust gas emission channel (501). The exhaust gas emission channel (501) is connected to the pressure relief port of the battery pack (502) through a connecting pipe, and is used to guide the gas generated by the thermal runaway of the battery through the support frame (500) to the exhaust gas treatment unit (600) in the electrical compartment module (200). The battery compartment module (100) and the electrical compartment module (200) are provided with decorative cover plates (700) on their outer sides. An air gap (800) is reserved between the decorative cover plate (700) and the outer wall of the module. The air gap (800) is vertically connected to form a natural convection heat dissipation channel. The bottom of the air gap (800) is provided with an air inlet (801) and the top is provided with a hidden air outlet (802). The hollow profile inner wall of the support frame (500) is provided with a high temperature resistant and corrosion resistant coating, and the exhaust gas emission channel (501) is provided with a condensate collection structure (503) on the path connecting to the exhaust gas treatment unit (600) for collecting condensate generated during exhaust gas transmission. The exhaust gas treatment unit (600) includes a cooling chamber (601) and a filtration chamber (602) arranged in sequence. The exhaust gas first enters the cooling chamber (601) for cooling and spark extinguishing, and then enters the filtration chamber (602) for particulate matter interception by filter cotton.

2. The wall-mounted energy storage system according to claim 1, characterized in that, The blind-mating connection assembly (400) is configured as a hierarchical connection structure; The hierarchical connection structure includes a guide segment (401) and a connecting segment (402) in the splicing direction; the protruding length of the guide segment (401) is greater than the protruding length of the connecting segment (402), and is configured to make priority contact during the splicing process to correct the alignment posture of the module, and then realize the connection of the electrical circuit.

3. The wall-mounted energy storage system according to claim 1, characterized in that, The battery pack (502) is installed in the support frame (500) in a vertically stacked manner; One end of the connecting pipe is connected to the explosion-proof valve of the battery pack (502), and the other end is connected to the vent on the support frame (500) to form a closed gas transmission path.

4. A wall-mounted energy storage system according to claim 1, characterized in that, The electrical compartment module (200) integrates a thermal management circulation system (202), which includes a circulation pump and a temperature sensor. A liquid cooling plate or liquid cooling pipe is provided on the outside of the battery pack (502). The thermal management circulation system (202) is connected to the liquid cooling plate or liquid cooling pipe through an external pipeline and is configured to dynamically adjust the coolant flow rate according to the temperature of the battery pack (502) detected by the temperature sensor.

5. A wall-mounted energy storage system according to claim 1, characterized in that, The battery compartment module (100) is equipped with a composite detector (201), which is configured to detect temperature, smoke or specific gas concentration; When the composite detector (201) detects an abnormal high temperature or a harmful gas signal, the system is configured to immediately start the fan in the exhaust gas treatment unit (600) to perform exhaust treatment.

6. A wall-mounted energy storage system according to claim 1, characterized in that, The system also includes an auxiliary fastener (900) located on top of the battery compartment module (100). The auxiliary fastener (900) is configured to connect the top of the support frame (500) to the building wall or adjacent structure to prevent the energy storage system in the form of a wall from overturning.

7. A wall-mounted energy storage system according to claim 1, characterized in that, The system is configured as a scalable, multi-module cascaded mode. Multiple battery compartment modules (100) are configured to be connected in series along the horizontal direction via the blind-plug connection assembly (400), and are centrally controlled and managed by the same electrical compartment module (200).

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