Integrated energy storage machine

Abstract

The utility model discloses an integrated energy storage machine, aims at solving the problem that the existing energy storage machine has dispersed components, complex wiring, resulting in cumbersome assembly and long production cycle. The integrated energy storage machine of the utility model includes cabinet body, cabinet door, energy storage converter, energy storage battery module, control module and prefabricated wire subassembly, the cabinet door is hinged in one side of the cabinet body, the energy storage converter, energy storage battery module and control module all install in the cabinet inside front of the cabinet body, control module is connected with energy storage converter and energy storage battery module electricity respectively, energy storage converter is connected with energy storage battery module electricity, and energy storage converter has integrated high -voltage box function. The prefabricated wire subassembly connects energy storage converter, energy storage battery module and control module respectively, and the joint of prefabricated wire subassembly is located in the front in the cabinet body. The installation personnel can complete component fixation and wiring on the cabinet front, and improves installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an integrated energy storage machine. Background Technology

[0002] As a core component of the national economy and a major consumer of electricity, industry and commerce exhibit significant peak-valley differences in their electricity consumption characteristics: peak demand occurs during periods such as the start-up and shutdown of large manufacturing equipment and the concentrated operation of commercial establishments, while demand drops sharply during off-peak hours. To balance the grid load, many provinces in China have implemented peak-valley electricity pricing policies, with peak-hour prices significantly higher than off-peak prices. This results in persistently high electricity costs for industrial and commercial users, severely compressing profit margins and hindering sustainable development.

[0003] Integrated energy storage systems, with their core functions such as peak shaving and valley filling, and reduced demand costs, have become key equipment for industrial and commercial users to reduce electricity costs. The core requirements for such equipment are high integration and rapid delivery. Industrial and commercial users need to put the equipment into use as soon as possible to shorten the return on investment cycle, thus placing extremely high demands on the production efficiency of integrated energy storage systems.

[0004] However, existing integrated energy storage units suffer from several drawbacks. Functional components are often scattered across the front, back, and sides of the cabinet, requiring installers to repeatedly move back and forth, resulting in low wiring and debugging efficiency. Furthermore, numerous long-distance wiring connections are needed between the independent high-voltage box and the converter and battery modules, making prefabrication time-consuming. Additionally, the cabinet doors often integrate various electrical components such as buttons, switches, and indicator lights, further increasing wiring workload due to the cross-connections between the door and the interior. Core components, such as converters and battery packs, are often non-modular designs, requiring individual on-site installation and fixation, hindering mass prefabrication and rapid assembly, thus extending the production cycle. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] The purpose of this invention is to provide an integrated energy storage device, which aims to solve the problems of existing energy storage devices, such as scattered components, complex wiring leading to cumbersome assembly and long production cycles.

[0007] (II) Technical Solution

[0008] To address the aforementioned issues, this utility model provides an integrated energy storage device, comprising a cabinet, cabinet door, energy storage converter, energy storage battery module, control module, and prefabricated line assembly;

[0009] The cabinet door is hinged to one side of the cabinet body. The energy storage converter, the energy storage battery module and the control module are all installed on the front of the cabinet body. The control module is electrically connected to the energy storage converter and the energy storage battery module respectively. The energy storage converter is electrically connected to the energy storage battery module, and the energy storage converter integrates a high-voltage box function.

[0010] The prefabricated line assembly is connected to the energy storage converter, the energy storage battery module and the control module respectively, and the connector of the prefabricated line assembly is located on the front of the cabinet.

[0011] Preferably, an indicator light assembly is installed on the outside of the cabinet door, and a protection module is also installed on the front inside the cabinet. The protection module is electrically connected to the energy storage converter and the energy storage battery module through the prefabricated wiring assembly and the indicator light assembly, respectively.

[0012] Preferably, the cabinet has at least two partitions inside, which divide the front of the cabinet into an upper area, a middle area, and a lower area. The energy storage battery module is installed in the upper area, the control module is installed in the middle area, and the energy storage converter is installed in the lower area.

[0013] Preferably, the energy storage battery module includes several independently detachable battery cells, which are connected in series or in parallel to form a battery pack, and the output terminal of the battery pack is electrically connected to the input terminal of the energy storage converter.

[0014] Preferably, the battery units are vertically distributed within the cabinet, and the battery units of different heights are separated by the partition.

[0015] Preferably, the protection module includes an overcurrent protector and an overvoltage protector. The overcurrent protector is connected in series in the main circuit between the energy storage converter and the energy storage battery module, and the overvoltage protector is connected in parallel across the positive and negative terminals of the energy storage battery module.

[0016] Preferably, the control module includes a microcontroller and a signal acquisition unit. The signal acquisition unit is electrically connected to the output terminal of the energy storage converter, the signal acquisition unit is electrically connected to the energy storage battery module, the output terminal of the signal acquisition unit is electrically connected to the input terminal of the microcontroller, and the output terminal of the microcontroller is electrically connected to the control terminal of the indicator light assembly.

[0017] Preferably, the integrated energy storage unit further includes a heat dissipation component, which is disposed on the side walls or rear side wall of the cabinet, and the installation position of the heat dissipation component corresponds one-to-one with the installation position of the energy storage converter and the energy storage battery module.

[0018] Preferably, the heat dissipation component includes a plurality of heat dissipation holes and a cooling fan, the heat dissipation holes being evenly distributed on the side wall of the cabinet, and the cooling fan being fixed to the inner side of the side wall of the cabinet.

[0019] Preferably, the heat dissipation assembly includes at least two cooling fans, with the air outlet directions of the two cooling fans respectively facing the energy storage converter and the energy storage battery module.

[0020] (III) Beneficial Effects

[0021] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0022] 1. The core components are concentrated on the front of the cabinet, so installers do not need to move repeatedly in front of, behind or to the side of the cabinet to complete the component fixing and wiring, making the installation action more seamless, reducing the time for position switching and improving installation efficiency.

[0023] 2. The energy storage converter integrates a high-voltage box, eliminating the need for a separate high-voltage box. This reduces the number of components inside the cabinet, simplifies the internal structure, and makes the layout more concise. On the other hand, it avoids a large number of long-distance wirings between the separate high-voltage box and other components, structurally reducing the risk of layout chaos and also reducing the amount of wiring work.

[0024] 3. The centralized components and simplified structure facilitate standardized assembly and debugging during production. Modular design improves production efficiency during processing. When using and maintaining the equipment, technicians can simply open the cabinet door to directly observe the working status of all core components, quickly pinpointing faults without disassembling other parts of the cabinet, greatly enhancing maintenance convenience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of an integrated energy storage device according to the present invention;

[0026] Figure 2 This is a schematic diagram of the cabinet door structure of an integrated energy storage machine according to the present utility model.

[0027] Figure label:

[0028] 1. Cabinet body; 101. Shelf;

[0029] 2. Cabinet door; 3. Energy storage converter; 4. Energy storage battery module; 5. Control module; 6. Indicator light assembly; 7. Protection module; 8. Prefabricated wiring assembly; 9. Heat dissipation assembly. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0031] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0032] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] Combination Figure 1 and Figure 2 This utility model provides an integrated energy storage machine, including a cabinet 1, a cabinet door 2, an energy storage converter 3, an energy storage battery module 4, a control module 5, and a prefabricated line assembly 8. The cabinet door 2 is hinged to one side of the cabinet 1. The energy storage converter 3, the energy storage battery module 4, and the control module 5 are all installed on the front of the cabinet inside the cabinet 1. The control module 5 is electrically connected to the energy storage converter 3 and the energy storage battery module 4, respectively. The energy storage converter 3 is electrically connected to the energy storage battery module 4, and the energy storage converter 3 integrates a high-voltage box function. The prefabricated line assembly 8 connects the energy storage converter 3, the energy storage battery module 4, and the control module 5, respectively. The connector of the prefabricated line assembly 8 is located on the front of the cabinet inside the cabinet 1.

[0034] Specifically, cabinet 1 serves as the overall supporting structure, providing a closed electrical installation space; cabinet door 2, hinged, allows cabinet 1 to be opened and closed, facilitating the installation and maintenance of components inside; energy storage converter 3 integrates the functions of a high-voltage box, undertaking AC / DC power conversion and high-voltage control tasks, replacing the traditional independent high-voltage box and simplifying the structure; energy storage battery module 4 is responsible for energy storage and release; control module 5, as the core control unit, issues charging and discharging control commands through electrical connections with energy storage converter 3 and energy storage battery module 4, and receives status feedback from both, coordinating the overall operation of the equipment. Prefabricated wiring assembly 8 consists of standardized cables prefabricated in the factory, with connectors adapted to the interfaces of various components, used to achieve electrical connections between control module 5, energy storage converter 3, and energy storage battery module 4. The connectors are located on the front of the cabinet for easy installation and maintenance.

[0035] During operation, the energy storage converter 3, energy storage battery module 4, and control module 5 are centrally installed on the front of the cabinet, reducing space movement during installation. Because the energy storage converter 3 integrates a high-voltage box, it can be directly electrically connected to the energy storage battery module 4 to complete the AC / DC conversion of electrical energy. The control module 5 achieves coordinated control of both based on this electrical connection. On-site assembly simply requires connecting the prefabricated wire connectors to the interfaces of the various components on the front of the cabinet, as well as the connectors of the indicator light assembly 6 passing through the cabinet door 2, to complete signal and power transmission.

[0036] With this setup, core components are concentrated on the front of the cabinet. Installers can easily fix and wire components without repeatedly moving between the front, back, or sides of the cabinet, making installation more seamless, reducing location switching time, and improving installation efficiency. The energy storage converter 3 integrates a high-voltage box, eliminating the need for a separate high-voltage box. This reduces the number of components inside the cabinet, simplifies the internal structure, and makes the layout more streamlined. Furthermore, it avoids extensive long-distance wiring between the independent high-voltage box and other components, structurally reducing the risk of layout chaos and wiring workload. The centralized components and simplified structure make assembly and debugging in the production process easier to standardize. Modular design improves production efficiency during manufacturing. During equipment use and maintenance, technicians only need to open cabinet door 2 to directly view the working status of all core components from the front, quickly locating fault points without disassembling other parts of cabinet 1, greatly improving maintenance convenience. The prefabricated line assembly 8 is a standardized component pre-made in the factory. On-site assembly eliminates the need for complex processes such as cable cutting and terminal crimping; simply plug the connectors into the corresponding component interfaces, simplifying the assembly process and improving the assembly efficiency of the integrated energy storage unit. During factory manufacturing, prefabricated cable assembly 8 employs standardized processes and testing procedures. Cable length, diameter, and connector contact performance are strictly controlled. Compared to manual wiring on-site, this effectively reduces issues such as excessive contact resistance and cable insulation damage, improving wiring reliability and lowering the risk of operational abnormalities due to wiring faults. The connectors of prefabricated cable assembly 8 are located on the front of the cabinet, and the prefabricated cables have clearly defined corresponding connections. In the event of an electrical fault, technicians can quickly locate the corresponding prefabricated cable connector on the front of the cabinet and detect the fault point by plugging and unplugging the connector, improving maintenance convenience and shortening troubleshooting and repair time.

[0037] In a preferred embodiment, an indicator light assembly 6 is installed on the outside of the cabinet door 2, and a protection module 7 is also installed on the front inside the cabinet body 1. The protection module 7 is electrically connected to the energy storage converter 3, the energy storage battery module 4 and the indicator light assembly 6 respectively.

[0038] Specifically, indicator light assembly 6 is installed on the outside of cabinet door 2 to visually display the status of the equipment, such as operation, standby, fault, and remaining power. Protection module 7 is installed on the front inside the cabinet to monitor the current and voltage of energy storage converter 3 and energy storage battery module 4 in real time. When abnormalities such as overcurrent or overvoltage occur, protection actions are triggered, such as cutting off the circuit, and the fault signal is transmitted to indicator light assembly 6 to display the fault status. During normal operation, the equipment operation status signal is also transmitted to indicator light assembly 6.

[0039] During operation, the protection module 7 is electrically connected to the energy storage converter 3 and the energy storage battery module 4 to continuously monitor electrical parameters. Once the parameters exceed the threshold, it immediately takes action and transmits a signal. The indicator light assembly 6 then provides feedback on the equipment status in different display modes based on the received signals.

[0040] Furthermore, the indicator light assembly 6 has four status indication functions: running, standby, fault, and remaining power. The four statuses are distinguished by different colors and the number of lights. The running status corresponds to a solid green light, the standby status corresponds to a flashing yellow light, the fault status corresponds to a solid red light, and the remaining power status is indicated by the number of green lights corresponding to the remaining power percentage of the energy storage battery module 4.

[0041] With this configuration, the overcurrent and overvoltage protection functions of protection module 7 can promptly cut off the circuit when electrical abnormalities occur in energy storage converter 3 and energy storage battery module 4, preventing irreversible damage to components caused by abnormal current and voltage. This ensures safe operation of the equipment from an electrical perspective and extends its overall service life. Both instantaneous high-current short-circuit faults and continuous high-voltage overcharge faults can be intercepted in time. Indicator light assembly 6 is located on the outside of cabinet door 2, allowing operators to determine the equipment status from outside the equipment without opening cabinet door 2. For example, during maintenance inspections, personnel can quickly scan the indicator lights on cabinet door 2 to determine whether each device is running, in standby mode, or faulty, and even roughly understand the remaining battery power, greatly improving operational convenience. The electrical connection between protection module 7 and indicator light assembly 6 enables rapid transmission and display of fault signals, allowing operators to detect and intervene in the fault immediately, preventing its escalation. Simultaneously, protection module 7 is installed on the front of the cabinet, close to other core components, allowing for quick inspection or replacement during maintenance, further improving the timeliness of fault response and maintenance.

[0042] In a preferred embodiment, the cabinet 1 is provided with at least two partitions 101, which divide the front of the cabinet into an upper area, a middle area and a lower area. The energy storage battery module 4 is installed in the upper area, the control module 5 is installed in the middle area and the energy storage converter 3 is installed in the lower area.

[0043] Specifically, multiple partitions 101 divide the front of the cabinet into three independent areas: upper, middle, and lower. These areas are used to install the energy storage battery module 4, control module 5, and energy storage converter 3, respectively, achieving a layered and orderly layout of components. During operation, at least two partitions 101 form a horizontal separation on the front of the cabinet, allowing for layered installation of components. Wiring can be arranged vertically or horizontally along the edge of the partition 101 or a pre-set wiring channel, preventing wiring from intertwining or interfering with each other in different areas.

[0044] This design, with partition 101 dividing the installation areas into layers, makes the cabinet layout more organized and orderly. During wiring, because the components are layered, cables can be laid along fixed paths, greatly reducing wiring crossings and tangles, improving wiring standardization, and facilitating subsequent cable management and maintenance. The layered layout fully utilizes the vertical space of cabinet 1, rationally allocating installation space for each component without increasing the cabinet's volume, thus improving the efficiency of space utilization within the cabinet. For industrial and commercial users with limited equipment room space, this layout allows equipment to achieve full functionality within a limited space, making it more adaptable to different scenarios. With the layered layout, components in each area are relatively independent, reducing thermal interference. For example, the heat generated by the energy storage converter 3 is concentrated in the lower area, while the energy storage battery module 4 is in the upper area, separated by the control module 5 and partition 101. This separation, to a certain extent, prevents heat from directly spreading upwards, helping each component maintain a relatively independent heat dissipation environment. Combined with the subsequent heat dissipation component 9, this allows for more efficient heat dissipation, ensuring the stability of component operation.

[0045] In a preferred embodiment, the energy storage battery module 4 includes several independently detachable battery cells, which are connected in series or in parallel to form a battery pack. The output terminal of the battery pack is electrically connected to the input terminal of the energy storage converter 3.

[0046] Specifically, the battery cells, as basic energy storage units, can be independently installed and removed. They are connected in series or parallel to form a battery pack, providing a stable DC power input to the energy storage converter 3. During operation, multiple battery cells are used according to user electricity demand. During valley filling, the energy storage converter 3 converts the grid AC power into DC power and charges the battery pack through the input terminal. During peak shaving, the DC power from the battery pack is transmitted to the energy storage converter 3 through the output terminal and converted into AC power to supply the load.

[0047] This configuration allows battery cells to be independently installed and disassembled, and can be connected in series or parallel to form battery packs. Therefore, the number and connection methods of battery cells can be flexibly adjusted according to the different power needs of industrial and commercial users, such as matching specific equipment with high voltage or storing more energy in larger capacities. For example, when users require more power during peak hours, parallel battery cells can be added to increase the total capacity; when equipment requires high voltage, series battery cells can be added to increase the total voltage, greatly improving the adaptability of equipment to different scenarios. The independent installation and disassembly of battery cells means that if a battery cell fails, the entire battery pack does not need to be replaced; only the faulty cell needs to be disassembled for repair or replacement. This not only reduces maintenance costs but also significantly shortens maintenance time, reduces equipment downtime due to battery failure, and ensures the continuity of power supply for industrial and commercial users. Battery cells are standardized basic units that can be prefabricated in batches during production, improving production efficiency. During warehousing, only battery cells need to be stored, which significantly saves storage space compared to storing battery packs of different specifications, and facilitates inventory management, reducing the cost and complexity of production and warehousing.

[0048] There are no restrictions on the specific switching methods between series and non-series connections; the settings should be adapted to the specific structure and wiring of the energy storage device. For example, when series connection is required, the battery units are first installed and then connected in series with each other using wires, and then connected to the main line; when parallel connection is required, the battery units are installed and then connected to the main line sequentially.

[0049] In a preferred embodiment, the battery cells are vertically distributed within the cabinet 1, with battery cells of different heights separated by the partition 101. Multiple battery cells are distributed at the same height and in the same vertical direction, with partitions 101 separating them, providing installation space for the battery cells and facilitating the installation and removal of individual battery cells.

[0050] In a preferred embodiment, the protection module 7 includes an overcurrent protector and an overvoltage protector. The overcurrent protector is connected in series in the main circuit between the energy storage converter 3 and the energy storage battery module 4, and the overvoltage protector is connected in parallel across the positive and negative terminals of the energy storage battery module 4.

[0051] Specifically, the overcurrent protector is connected in series in the main circuit between the energy storage converter 3 and the energy storage battery module 4 to limit excessive current in the main circuit; the overvoltage protector is connected in parallel across the positive and negative terminals of the energy storage battery module 4 to limit excessive voltage across the battery module. During operation, the overcurrent protector monitors the main circuit current in real time. When the current exceeds a set threshold, such as a sudden increase in current due to a short circuit, internal protective components activate, such as a fuse blowing or a circuit breaker tripping, cutting off the main circuit. The overvoltage protector monitors the battery module voltage in real time. When the voltage exceeds a set threshold, such as an overcharge causing a voltage rise, internal components conduct, such as a varistor breaking down or a discharge tube activating, discharging excessive voltage and limiting the battery module voltage within a safe range.

[0052] With this setup, the overcurrent protector is connected in series with the main circuit to directly intercept overcurrent faults in the circuit; the overvoltage protector is connected in parallel across the battery terminals to precisely limit battery overvoltage faults. The two protectors have clearly defined roles, providing targeted electrical protection for the energy storage converter 3 and the energy storage battery module 4. This ensures that different types of electrical anomalies can be handled promptly, further enhancing the overall electrical safety of the equipment. The overcurrent and overvoltage protectors respond quickly, triggering protection the instant a fault occurs, effectively preventing irreversible damage to components from excessive current or voltage in a very short time. Furthermore, the overcurrent and overvoltage protectors are standardized, easily replaceable components. After a protection failure, technicians can quickly locate and replace the new protector from the front of the cabinet without complex disassembly of the energy storage converter 3 or the battery module, improving maintenance convenience and reducing maintenance costs.

[0053] In a preferred embodiment, the control module 5 includes a microcontroller and a signal acquisition unit. The signal acquisition unit is electrically connected to the output terminal of the energy storage converter 3, electrically connected to the energy storage battery module 4, electrically connected to the input terminal of the microcontroller, and electrically connected to the control terminal of the indicator light assembly 6.

[0054] Specifically, the signal acquisition unit collects the output current and voltage signals of the energy storage converter 3, as well as the remaining power of the energy storage battery module 4. The microcontroller processes the collected signals and sends control commands to the indicator light assembly 6 to achieve status display control. During operation, the signal acquisition unit is electrically connected to the output terminal of the energy storage converter 3 and the energy storage battery module 4 to collect key operating parameters in real time. The collected signals are transmitted to the input terminal of the microcontroller. After analysis and processing, the microcontroller sends commands to the control terminal of the indicator light assembly 6 through its output terminal, causing the indicator lights to display the current status of the equipment in different ways.

[0055] With this setup, the signal acquisition unit can acquire key parameters of the energy storage converter 3 and the energy storage battery module 4 in real time and with high accuracy. The microcontroller analyzes and processes these precise parameters, leading to more accurate judgments about the equipment's operating status. This precise monitoring provides a data foundation for reliable equipment operation, avoiding erroneous control or misjudgment of status due to inaccurate parameter acquisition. The microcontroller automatically sends control commands to the indicator light assembly 6 based on the acquired signals, achieving intelligent and automated equipment status display. Simultaneously, the microcontroller can further send control commands to the energy storage converter 3 and the energy storage battery module 4, such as adjusting charging and discharging power and starting / stopping charging and discharging, achieving intelligent control of the overall equipment operation, improving automation, and reducing the need for manual intervention. The microcontroller controls the indicator light assembly 6 to display the equipment status intuitively, allowing operators to quickly understand the equipment's operating status and reducing the need for specialized knowledge. Whether professional technicians or ordinary maintenance personnel, everyone can quickly grasp the equipment status through the indicator lights, improving the intuitiveness of human-machine interaction.

[0056] In a preferred embodiment, the integrated energy storage unit also includes a heat dissipation component 9, which is disposed on the side walls or rear side wall of the cabinet 1. The installation position of the heat dissipation component 9 corresponds one-to-one with the installation position of the energy storage converter 3 and the energy storage battery module 4.

[0057] Specifically, the heat dissipation component 9 dissipates heat from the energy storage converter 3 and the energy storage battery module 4, ensuring they operate within a suitable temperature range. Its installation position corresponds one-to-one with both components, ensuring targeted heat dissipation. During operation, the heat dissipation component 9 is installed on the side or rear side walls of the cabinet 1, corresponding to the positions of the energy storage converter 3 and the energy storage battery module 4. When the components generate heat, the heat diffuses into the surrounding air. The heat dissipation component 9, through airflow via the ventilation holes and the active airflow or exhaust of the cooling fan, carries the heat away from the inside of the cabinet 1, reducing the temperature around the components and ensuring stable operating temperature.

[0058] In a preferred embodiment, the heat dissipation component 9 includes several heat dissipation holes and a cooling fan. The heat dissipation holes are evenly distributed on the side wall of the cabinet 1, and the cooling fan is fixed to the inner side of the side wall of the cabinet 1. The heat dissipation holes allow air circulation between the inside and outside of the cabinet 1, providing a basic air exchange channel for heat dissipation; the cooling fan actively accelerates airflow, enhancing the heat dissipation effect. During operation, the heat dissipation holes, evenly distributed on the side wall of the cabinet 1, form an air circulation channel. Hot air inside the cabinet 1 diffuses naturally through the heat dissipation holes due to its reduced density, while cool air from the outside enters to supplement the airflow. The cooling fan, fixed to the inner side of the side wall of the cabinet 1, actively draws in cool air from the outside or exhausts hot air from the inside through the rotation of its blades, accelerating airflow and enhancing the heat dissipation effect. Especially when natural ventilation is insufficient, the active cooling of the fan can effectively improve the heat dissipation efficiency.

[0059] With this setup, the heat dissipation component 9 is positioned one-to-one with the energy storage converter 3 and the energy storage battery module 4, allowing heat dissipation to directly affect the area surrounding the heat-generating components, achieving precise heat dissipation. Compared to situations where the heat dissipation component 9 and the heat-generating components are not aligned, requiring heat to diffuse over long distances, this targeted layout can more efficiently dissipate the heat generated by the components, improving heat dissipation efficiency and ensuring that the components always operate within a suitable temperature range. The combination of natural ventilation through the heat dissipation holes and active cooling through the cooling fan forms a passive and active synergistic heat dissipation method. When the equipment operates under low load and generates less heat, natural ventilation through the heat dissipation holes is sufficient to meet the heat dissipation requirements, and the fan can operate at low power or be stopped, saving energy. When the equipment operates under high load and generates more heat, the fan starts, actively enhancing heat dissipation and ensuring the cooling effect. This synergistic method not only guarantees heat dissipation needs but also allows for adjustment according to operating conditions, improving heat dissipation flexibility and energy efficiency. The heat dissipation holes are evenly distributed on the side wall of the cabinet 1, which makes the air flow more evenly inside the cabinet 1 and avoids heat accumulation in local areas. The airflow of the cooling fan exchanges with the outside air more efficiently through the evenly distributed heat dissipation holes, further improving the heat dissipation uniformity inside the cabinet 1, ensuring that the temperature distribution of various parts of components such as the energy storage converter 3 and the energy storage battery module 4 is more uniform, avoiding local overheating, and ensuring the overall performance stability of the components.

[0060] In a preferred embodiment, the heat dissipation assembly 9 includes at least two cooling fans, with the air outlet directions of the two cooling fans respectively directed toward the energy storage converter 3 and the energy storage battery module 4.

[0061] Specifically, at least two cooling fans are used: one for targeted cooling of the energy storage inverter 3 and the other for the energy storage battery module 4, improving the targeted cooling of each heat-generating component. During operation, the airflow from the two cooling fans is directed towards the energy storage inverter 3 and the energy storage battery module 4, respectively. When the fans start, they blow cool external air directly onto the corresponding heat-generating components, quickly removing heat from the surface of the components and allowing the heat to be more efficiently discharged to the outside of the cabinet 1 through the ventilation holes.

[0062] In the preferred embodiment, each cooling fan is dedicated to directional cooling of a single core heat-generating component. The airflow directly targets the heat-generating parts of the component, resulting in a shorter heat transfer path and higher cooling efficiency compared to a single fan dissipating heat from multiple components. This prevents heat buildup around the components and more effectively controls their operating temperature. With two fans cooling different components, the cooling processes of the energy storage converter 3 and the energy storage battery module 4 are relatively independent. The cooling performance of one component will not excessively affect the cooling effect of the other. For example, when the energy storage converter 3 is under high load, its corresponding fan operates at high speed; if the energy storage battery module 4 is under low load and generates little heat, its corresponding fan can operate at low speed. This ensures cooling of the converter while preventing excessive heat generation from the battery module, saving energy and enhancing the independence and flexibility of heat dissipation for each component.

[0063] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An integrated energy storage device, characterized in that, The integrated energy storage unit includes a cabinet (1), a cabinet door (2), an energy storage converter (3), an energy storage battery module (4), a control module (5), and a prefabricated line assembly (8); The cabinet door (2) is hinged to one side of the cabinet body (1). The energy storage converter (3), the energy storage battery module (4) and the control module (5) are all installed on the front of the cabinet body (1). The control module (5) is electrically connected to the energy storage converter (3) and the energy storage battery module (4) respectively. The energy storage converter (3) is electrically connected to the energy storage battery module (4), and the energy storage converter (3) integrates the high voltage box function. The prefabricated line assembly (8) is connected to the energy storage converter (3), the energy storage battery module (4) and the control module (5) respectively. The connector of the prefabricated line assembly (8) is located on the front of the cabinet (1).

2. The integrated energy storage machine according to claim 1, characterized in that, An indicator light assembly (6) is installed on the outside of the cabinet door (2), and a protection module (7) is also installed on the front inside the cabinet body (1). The protection module (7) is electrically connected to the energy storage converter (3) and the energy storage battery module (4) through the prefabricated line assembly (8) and the indicator light assembly (6).

3. The integrated energy storage machine according to claim 2, characterized in that, The cabinet (1) is provided with at least two partitions (101) inside the cabinet. The partitions (101) divide the front of the cabinet into an upper area, a middle area and a lower area. The energy storage battery module (4) is installed in the upper area, the control module (5) is installed in the middle area and the energy storage converter (3) is installed in the lower area.

4. The integrated energy storage device according to claim 3, characterized in that, The energy storage battery module (4) includes several battery units that can be independently installed and removed. The battery units are connected in series or in parallel to form a battery pack. The output end of the battery pack is electrically connected to the input end of the energy storage converter (3).

5. The integrated energy storage device according to claim 4, characterized in that, The battery units are vertically distributed within the cabinet (1), and the battery units of different heights are separated by the partition (101).

6. The integrated energy storage machine according to claim 2, characterized in that, The protection module (7) includes an overcurrent protector and an overvoltage protector. The overcurrent protector is connected in series in the main circuit between the energy storage converter (3) and the energy storage battery module (4), and the overvoltage protector is connected in parallel across the positive and negative terminals of the energy storage battery module (4).

7. The integrated energy storage machine according to claim 2, characterized in that, The control module (5) includes a microcontroller and a signal acquisition unit. The signal acquisition unit is electrically connected to the output terminal of the energy storage converter (3) and the energy storage battery module (4). The output terminal of the signal acquisition unit is electrically connected to the input terminal of the microcontroller, and the output terminal of the microcontroller is electrically connected to the control terminal of the indicator light assembly (6).

8. The integrated energy storage machine according to claim 1, characterized in that, The integrated energy storage machine also includes a heat dissipation component (9), which is disposed on the two side walls or the rear side wall of the cabinet (1). The installation position of the heat dissipation component (9) corresponds one-to-one with the installation position of the energy storage converter (3) and the energy storage battery module (4).

9. The integrated energy storage machine according to claim 8, characterized in that, The heat dissipation component (9) includes several heat dissipation holes and a heat dissipation fan. The heat dissipation holes are evenly distributed on the side wall of the cabinet (1), and the heat dissipation fan is fixed to the inner side of the side wall of the cabinet (1).

10. The integrated energy storage machine according to claim 9, characterized in that, The heat dissipation component (9) includes at least two cooling fans, with the air outlet directions of the two cooling fans facing the energy storage converter (3) and the energy storage battery module (4), respectively.

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