A multifunctional special distribution box for battery cabinet
By using a multi-functional dedicated power distribution box in the battery cabinet, the unified layout of auxiliary control equipment and the intensive transmission of data are realized, which solves the problems of scattered components and complex wiring in the battery cabinet, improves the aesthetics and stability of the system, and reduces installation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HNAC TECH
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-10
AI Technical Summary
The existing battery cabinet has auxiliary control components installed in a scattered and disorderly manner, with unsightly wiring and a variety of communication cables, which leads to high installation difficulty and poor system stability, increasing construction and maintenance costs.
It adopts a multi-functional dedicated power distribution box with a built-in security IoT gateway. Data is directly transmitted to EMS via Ethernet connectors. Components are uniformly arranged and interface connections are made using docking terminals. It supports wireless communication and cloud platform interconnection.
It improves the data collection efficiency of the battery cabinet, reduces the difficulty of on-site installation and maintenance, enhances the system's anti-interference capability and the real-time performance of data transmission, and reduces construction costs.
Smart Images

Figure CN224481354U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to a multi-functional dedicated power distribution box for battery cabinets. Background Technology
[0002] A battery cabinet is an energy storage device, primarily used in conjunction with a PCS (Power Conversion System) in commercial and industrial energy storage or large-scale energy storage power stations. To ensure the stable operation of the battery cabinet, auxiliary control equipment is typically installed inside, such as a BMS (Battery Management System), fire suppression system, liquid cooling system, environmental monitoring system, and leakage detection system. Data from the equipment inside the cabinet is uploaded to the EMS (Energy Management System) in real time, and the EMS simultaneously issues control commands to the auxiliary control equipment.
[0003] In existing designs, components are typically placed in unused spaces within the cabinet. Primary cables connect to the incoming switch or busbar, while secondary external interfaces are directly connected to secondary terminal blocks. Data from auxiliary control components is uploaded to the EMS energy management system via Ethernet, RS485, CAN, etc.
[0004] The existing design has the following problems:
[0005] 1. The auxiliary control components of the existing battery cabinet are installed in a scattered and disorderly manner, and the overall wiring is not aesthetically pleasing;
[0006] 2. The inconvenience of primary and secondary external wiring increases the difficulty of on-site installation and maintenance;
[0007] 3. The various data transmission methods of the devices within the battery cabinet result in poor anti-interference capabilities, reducing system stability. Furthermore, the numerous communication cables increase on-site installation and wiring costs. Utility Model Content
[0008] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a multi-functional special power distribution box for battery cabinets that can improve the integration of data acquisition in battery cabinets.
[0009] The technical solution provided by this utility model is as follows:
[0010] A multi-functional dedicated power distribution box for a battery cabinet, the battery cabinet including auxiliary control equipment, the power distribution box having a security IoT gateway inside, and an Ethernet connector installed on its panel, the security IoT gateway being used to collect data from the auxiliary control equipment inside the battery cabinet and directly forward the data to the EMS via the Ethernet connector.
[0011] Preferably, the Ethernet connector is an RJ45 connector.
[0012] Preferably, the distribution box panel is also equipped with a communication secondary docking terminal, a power secondary docking terminal, and a quick connector. The quick connector is used to connect the distribution box to the DC side of the high-voltage box and the battery cabinet to the DC side of the PCS. The communication secondary docking terminal is used for communication between the battery cabinet and the PCS and BMS master control. The power secondary docking terminal is used for AC220V power input.
[0013] Preferably, the communication secondary docking terminal adopts a CAN interface.
[0014] Preferably, the distribution box panel is also equipped with a meter, a surge protector, and a miniature circuit breaker. The meter is used to count the charging and discharging of the battery cabinet, the surge protector is used for lightning protection of the primary line, and the miniature circuit breaker is used for the control and protection of the auxiliary power supply.
[0015] Preferably, a water immersion sensor and a relay are installed on the inner side panel of the power distribution box. The water immersion sensor is used to detect leakage in the battery cabinet, and the relay is used to control the on / off state of the circuit in the battery cabinet.
[0016] Preferably, the power distribution box is detachably installed in the battery cabinet.
[0017] Preferably, the distribution box panel is provided with a handle for pulling out the distribution box.
[0018] Preferably, the secure IoT gateway is connected to a wireless communication device for wireless data interconnection with a cloud platform.
[0019] Compared to existing technologies, the multi-functional dedicated power distribution box for battery cabinets of this utility model improves the integration of data acquisition and intelligent control of battery cabinets by setting up a safety IoT gateway and an Ethernet connector. The safety IoT gateway is used to collect data from auxiliary control equipment in the battery cabinet and forwards the data directly to the EMS through the Ethernet connector. This greatly saves the work of separating communication cabling and debugging of various communication devices in the battery cabinet on site. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a perspective view of the battery cabinet used in the multi-functional special power distribution box for battery cabinets according to an embodiment of this utility model.
[0022] Figure 2 for Figure 1 A 3D view of the battery cabinet from another angle;
[0023] Figure 3 for Figure 1 The front view of the battery cabinet shown;
[0024] Figure 4 This is a wiring diagram of the power distribution box according to an embodiment of the present utility model. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.
[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0030] like Figures 1 to 4 As shown in this embodiment of the invention, the battery cabinet includes a power distribution box 1 and auxiliary control equipment. The auxiliary control equipment includes a fire protection system, a liquid cooling system, an environmental monitoring system, a leakage detection system, etc.
[0031] In this embodiment, the distribution box 1 is a multi-functional dedicated distribution box for the battery cabinet, made of aluminum-zinc coated sheet metal. The panel is equipped with communication secondary connection terminals 2, power secondary connection terminals 3, a meter 4, a surge protector 5, a miniature circuit breaker 6, an Ethernet connector 7, and a quick connector 8. The quick connector 8 is used for connecting the distribution box 1 to the DC side of the high-voltage box and the battery cabinet to the DC side of the PCS. The communication secondary connection terminals 2 are used for communication between the battery cabinet and the PCS and BMS master control, using a CAN (Controller Area Network) interface. The power secondary connection terminals 3 are for AC220V power input. The Ethernet connector 7 is an RJ45 connector. The meter 4 is used to monitor the charging and discharging of the battery cabinet. The surge protector 5 is used for primary line lightning protection. The miniature circuit breaker 6 is used for auxiliary power control and protection.
[0032] The power distribution box 1 is equipped with a safety IoT gateway 9. The safety IoT gateway 9 is connected to the auxiliary control equipment through the terminal block 13 installed on the inner side plate of the power distribution box 1. It is used to collect data from the auxiliary control equipment in the battery cabinet and forward the data directly to the EMS through the Ethernet connector 7.
[0033] A water immersion sensor 10 and a relay 11 are also installed on the inner side panel of the power distribution box 1. The water immersion sensor 10 is used to detect leakage in the battery cabinet, and the relay 11 is used to control the on / off state of the circuit in the battery cabinet.
[0034] In this embodiment, the power distribution box 1 is detachably installed in the battery cabinet. The power distribution box 1 has two handles 12 on its panel, which are used to pull out the power distribution box 1. Because the power distribution box 1 is detachable, when the equipment inside the power distribution box 1 malfunctions, on-site maintenance personnel can quickly pull out the power distribution box 1 for repair or replacement of faulty components.
[0035] In this embodiment, the security IoT gateway is also connected to a wireless communication device (not shown) for wireless data interconnection with the cloud platform to access the battery fault diagnosis and analysis system for analysis and decision-making on battery life and health management.
[0036] Compared with the prior art, this embodiment has the following characteristics:
[0037] 1. Using a distribution box allows for unified arrangement and installation of components, increasing the overall aesthetics;
[0038] 2. The primary and secondary external interfaces use mating terminals to reduce the difficulty of on-site installation and maintenance;
[0039] 3. Local data collection and centralized management of equipment: Data from equipment within the battery cabinet is collected and controlled through a secure IoT gateway, enabling all data from the battery cabinet to be transmitted to the EMS via a single Ethernet connection. This results in higher real-time communication, stronger anti-interference capabilities, and reduced construction and installation costs.
[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A multi-functional dedicated power distribution box for a battery cabinet, the battery cabinet including auxiliary control equipment, characterized in that, The power distribution box is equipped with a safety IoT gateway, and its panel is equipped with an Ethernet connector. The safety IoT gateway is used to collect data from the auxiliary control equipment in the battery cabinet and forward the data directly to the EMS through the Ethernet connector.
2. The multi-functional dedicated power distribution box for battery cabinet as described in claim 1, characterized in that, The Ethernet connector is an RJ45 connector.
3. The multi-functional dedicated power distribution box for battery cabinet as described in claim 1, characterized in that, The distribution box panel is also equipped with communication secondary docking terminals, power secondary docking terminals, and quick connectors. The quick connectors are used to connect the distribution box to the DC side of the high-voltage box and the battery cabinet to the DC side of the PCS. The communication secondary docking terminals are used for communication between the battery cabinet and the PCS and BMS main control. The power secondary docking terminals are used for AC220V power input.
4. The multi-functional dedicated power distribution box for battery cabinet as described in claim 3, characterized in that, The communication secondary docking terminal adopts a CAN interface.
5. The multi-functional dedicated power distribution box for battery cabinet as described in claim 1, characterized in that, The distribution box panel is also equipped with a meter, surge protector, and miniature circuit breaker. The meter is used to count the charging and discharging of the battery cabinet, the surge protector is used for lightning protection of the primary line, and the miniature circuit breaker is used for the control and protection of the auxiliary power supply.
6. The multi-functional dedicated power distribution box for battery cabinet as described in claim 1, characterized in that, A water immersion sensor and a relay are installed on the inner side panel of the power distribution box. The water immersion sensor is used to detect leakage in the battery cabinet, and the relay is used to control the on / off state of the circuit in the battery cabinet.
7. The multi-functional dedicated power distribution box for battery cabinet as described in claim 1, characterized in that, The power distribution box is detachably installed in the battery cabinet.
8. The multi-functional dedicated power distribution box for a battery cabinet as described in claim 7, characterized in that, The distribution box panel is equipped with a handle, which is used to pull out the distribution box.
9. The multi-functional dedicated power distribution box for a battery cabinet as described in claim 1, characterized in that, The secure IoT gateway connects to a wireless communication device for wireless data interconnection with the cloud platform.