Energy storage power distribution cabinet and energy storage equipment

Abstract

The utility model discloses an energy storage power distribution cabinet and energy storage equipment. The energy storage power distribution cabinet comprises a cabinet body. The cabinet body is at least internally provided with an in-cabinet management system and a communication management system; the communication management system is provided with a main control module, a communication module and a relay analog interface; the main control module is connected with the in-cabinet management system based on the relay analog interface and / or the communication module, and the main control module is used for storing a preset control logic, transmitting and receiving a switch signal based on the relay analog interface, and performing bidirectional communication with the in-cabinet management system based on the communication module; and the switching signal is used for controlling a management system in the cabinet to start or stop. A relay simulation function is integrated through the communication management system, devices in the cabinet are reduced, the structure in the cabinet is simplified, the number of wires is small, the cost and the installation failure rate of the power distribution cabinet are reduced, and debugging and maintenance convenience is improved.

Description

Technical Field

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

[0002] Containerized energy storage equipment is a power storage device that integrates battery modules, battery management, and electrical safety equipment.

[0003] Existing power distribution cabinets for containerized energy storage equipment typically adopt a low-voltage complete power distribution cabinet model, internally housing circuit breakers, auxiliary relays, UPS, DIN rail terminal blocks, communication modules for various equipment levels, and other electrical components, and using a large number of auxiliary relays for logic control. Existing technology has the following problems: the numerous internal components in existing complete solutions lead to complex wiring processes, cumbersome operation, and a high risk of errors during installation, which is not conducive to mass production. When the power distribution cabinet malfunctions or wiring errors occur, maintenance by professional personnel is required, and locating the fault is difficult and repairs are time-consuming. Utility Model Content

[0004] This utility model provides an energy storage distribution cabinet and energy storage equipment to solve the problems of complex wiring process, easy installation error and long maintenance time caused by the use of a large number of auxiliary relays for logic control in existing containerized energy storage equipment, thereby reducing the number of components in the cabinet and simplifying the internal structure of the cabinet.

[0005] According to one aspect of this utility model, an energy storage distribution cabinet is provided, comprising: a cabinet body; at least an internal management system and a communication management system are provided inside the cabinet body; the communication management system is provided with a main control module, a communication module and a relay analog interface; the main control module is connected to the internal management system via the relay analog interface and / or the communication module, the main control module is used to store preset control logic, send and receive switch signals via the relay analog interface, and perform bidirectional communication with the internal management system via the communication module; the switch signals are used to control the internal management system to start or stop.

[0006] Optionally, the relay analog interface includes at least one of the following: a DC dry contact interface, a DC wet contact interface, an AC dry contact interface, an AC wet contact interface, an AC / DC multiplexed interface, or a reserved interface.

[0007] Optionally, the communication module includes at least one of the following: at least one 4G communication module, at least one SIM card communication module, at least one Ethernet communication module, at least one CAN communication module, at least one RS485 communication module, or at least one RS232 communication module.

[0008] Optionally, the communication management system further includes: a storage expansion component, which includes a memory card read / write circuit and a memory card slot; the memory card slot is used to connect an external memory card; the memory card read / write circuit is connected to the main control module, and the memory card read / write circuit is used to read data stored in the external memory card and write data to the external memory card.

[0009] Optionally, the memory card slot includes at least one of the following: a TF memory card slot or a USB memory card slot.

[0010] Optionally, the communication management system further includes: a power supply management unit, the power supply management unit having at least one set of power supply output interfaces; the power supply output interfaces are used to provide power supply voltage to the cabinet management system; wherein the power supply voltage has at least one voltage level.

[0011] Optionally, the preset control logic includes multiple auxiliary relay control sub-logic; the number of relay analog interfaces is greater than or equal to the number of auxiliary relay control sub-logic.

[0012] Optionally, the cabinet management system includes at least one of the following: a battery management system, a portable uninterruptible power supply system, a cabinet detection system, an exhaust management system, an emergency stop system, a liquid cooling management system, a fire management system, or an explosion-proof fan system.

[0013] Optionally, the cabinet is further provided with a communication terminal block, which is used to connect the cabinet management system and the communication management system; the communication terminal block is also provided with a common ground terminal and a reserved terminal; the common ground terminal is connected to the grounding terminal of the cabinet and is used to provide the same grounding potential to all systems connected to the communication terminal block.

[0014] According to one aspect of the present invention, an energy storage device is provided, comprising: a battery module, and the aforementioned energy storage distribution cabinet.

[0015] The technical solution of this utility model embodiment integrates an internal management system and a communication management system within the cabinet. The communication management system includes a main control module, a communication module, and a relay simulation interface. The main control module connects to the internal management system via the relay simulation interface and / or the communication module. The main control module stores preset control logic, sends and receives switch signals via the relay simulation interface, and communicates bidirectionally with the internal management system via the communication module. The switch signals are used to control the start or stop of the internal management system. By integrating relay simulation functionality into the communication management system, the problem of complex wiring, error-prone installation, and long maintenance times caused by the use of numerous auxiliary relays for logic control in existing containerized energy storage equipment is solved. The high integration of the equipment helps reduce the number of components within the cabinet, simplifies the cabinet structure, reduces the number of wires, simplifies the mass production process, lowers the cost of the distribution cabinet and the installation failure rate, and improves the convenience of debugging and maintenance.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a schematic diagram of the structure of an energy storage distribution cabinet provided in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a module inside an energy storage distribution cabinet according to Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of another energy storage distribution cabinet module provided in Embodiment 1 of this utility model;

[0021] Figure 4 This is a schematic diagram of another communication management system in an energy storage distribution cabinet provided in Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal management system of an energy storage distribution cabinet provided in Embodiment 1 of this utility model;

[0023] Figure 6 A perspective view of the internal layout structure of an energy storage distribution cabinet provided in Embodiment 1 of this utility model;

[0024] Figure 7 This is a structural schematic diagram of an energy storage device provided in Embodiment 2 of this utility model. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] Example 1

[0028] Figure 1 This is a schematic diagram of the structure of an energy storage distribution cabinet provided in Embodiment 1 of the present utility model. This embodiment can be applied to containerized energy storage equipment. The distribution cabinet for containerized energy storage equipment involves various auxiliary relays and corresponding switching element control functions.

[0029] See Figure 1 As shown, the energy storage distribution cabinet 100 of this application includes: a cabinet body 110; the cabinet body 110 is equipped with at least an internal management system 120 and a communication management system 130; the communication management system 130 is equipped with a main control module 131, a communication module 132 and a relay simulation interface 133; the main control module 131 is connected to the internal management system 120 through the relay simulation interface 133 and / or the communication module 132, the main control module 131 is used to store preset control logic, receive and send switch signals through the relay simulation interface 133, and perform bidirectional communication with the internal management system 120 through the communication module 132; the switch signals are used to control the internal management system 120 to start or stop.

[0030] The cabinet management system 120 includes various management systems for the operation control and protection monitoring of the energy storage system. In this application, the cabinet management system 120 can be arranged in a modular structure within the cabinet 110, and the specific modules and functions of the cabinet management system 120 are not limited.

[0031] The communication management system 130 is a system built on the communication management machine. The communication management system 130 is used to perform communication interaction and logic control on the management systems 120 at all levels of the cabinet.

[0032] In this application, the preset control logic includes at least a plurality of auxiliary relay control sub-logic. The auxiliary relay control sub-logic represents the control logic used to simulate the operation of auxiliary relays. Typically, auxiliary relays include, but are not limited to: uninterruptible power supply drive relays, circuit breaker fault trip control relays, inverter control relays, fire control relays, heat dissipation control relays, or power supply control relays, etc.

[0033] Specifically, based on the control logic inside the cabinet 110 and the module management requirements of the cabinet management system 120, the communication management system 130 is functionally customized to replace the original auxiliary relay function. It participates in the communication interaction and control logic of the communication management system 130, such as controlling the operation or shutdown of the uninterruptible power supply, receiving real-time switch status, controlling the fault tripping of the incoming circuit breaker, communicating with the inverter control unit, and controlling and monitoring the system's operating status. By integrating relay simulation functions into the communication management system, the problems of complex wiring processes, error-prone installation, and long maintenance times caused by the use of numerous auxiliary relays for logic control in existing containerized energy storage equipment are solved. The high integration of the equipment helps reduce the number of components inside the cabinet, simplifies the cabinet structure, reduces the number of wires, simplifies the mass production process, lowers the cost of the distribution cabinet and the installation failure rate, and improves the convenience of commissioning and maintenance.

[0034] See Figure 2 and Figure 3 As shown, the relay simulation interface 133 includes at least one of the following: a DC dry contact interface 133Ⅰ, a DC wet contact interface 133Ⅱ, an AC dry contact interface 133Ⅲ, an AC wet contact interface 133Ⅳ, an AC / DC multiplexed interface 133Ⅴ, or a reserved interface. The reserved interface can be used as a power supply interface, a grounding protection interface, or other interfaces for extending relay functions.

[0035] For example, the DC dry contact interface includes several positive input dry contacts, several negative input dry contacts, positive output dry contacts, and negative output dry contacts for a DC 24V relay. The DC wet contact interface includes several positive output wet contacts and several negative output wet contacts for a DC 24V relay. The AC dry contact interface includes several positive output dry contacts, several negative output dry contacts, several positive input dry contacts, and several negative input dry contacts for a AC 220V relay. The AC wet contact interface includes AC 220V relay output wet contacts. In this application, the number and connection method of each interface can be adjusted according to actual needs.

[0036] Optionally, the number of relay analog interfaces 133 is greater than or equal to the number of auxiliary relay control sub-logic.

[0037] See Figure 2 As shown, the communication module 132 includes at least one of the following: at least one 4G communication module 132A, at least one SIM card communication module 132B, at least one Ethernet communication module 132C, at least one CAN communication module, at least one RS485 communication module, or at least one RS232 communication module.

[0038] See Figure 4 As shown, the communication management system 130 also includes: a storage expansion component 134, which includes a memory card read / write circuit 1341 and a memory card slot; the memory card slot is used to connect an external memory card (TF card or USB flash drive); the memory card read / write circuit 1341 is connected to the main control module 131, and the memory card read / write circuit 1341 is used to read the data stored in the external memory card and write data to the external memory card.

[0039] See Figure 4 As shown, the memory card slot includes at least one of the following: a TF memory card slot 134T or a USB memory card slot 134U. The TF memory card slot 134T is used to insert a TF card; the USB memory card slot 134U is used to insert a USB flash drive.

[0040] See Figure 4 As shown, the communication management system 130 also includes a reset button 135. This reset button 135 resets the configuration of the communication management system 130 based on user triggering.

[0041] See Figure 4As shown, the communication management system 130 further includes a power supply management unit 136, which has at least one set of power supply output interfaces. The power supply output interfaces are used to provide power supply voltage to the cabinet management system 120. The power supply voltage has at least one voltage level.

[0042] The power supply management unit includes, but is not limited to, a rectifier control unit, an inverter control unit, and a DC / DC converter. In this application, the power supply output interface provides a power supply voltage of 12V DC, 24V DC, or 220V AC. Typically, the power supply output interface includes, but is not limited to, a switch power supply output interface, a fire protection power supply output interface, and an uninterruptible power supply output interface.

[0043] See Figure 5 and Figure 6 As shown, the cabinet management system 120 includes at least one of the following: a battery management system 121, a portable uninterruptible power supply system 122, a cabinet detection system 123, an exhaust management system 124, an emergency stop system 125, a liquid cooling management system 126, a fire protection management system 127, or an explosion-proof fan system 128. The cabinet detection system 123 includes, but is not limited to, gas sensors.

[0044] See Figure 6 As shown, the cabinet 110 of this application also includes a communication terminal block 140. The communication terminal block 140 is used to connect the cabinet management system 120 (such as the portable uninterruptible power supply system 122 and the inverter control unit 129) to the communication management system 130. The communication terminal block 140 also includes a common ground terminal and a reserved terminal. The common ground terminal is connected to the grounding terminal of the cabinet 110 to provide the same grounding potential to all systems connected to the communication terminal block. By unifying the grounding potential, the anti-interference capability of the signal inside the cabinet is improved.

[0045] Example 2

[0046] Based on the above embodiments, the second embodiment of this utility model provides an energy storage device.

[0047] Figure 7 This is a structural schematic diagram of an energy storage device provided in Embodiment 2 of this utility model.

[0048] like Figure 7 As shown, the energy storage device 1 includes: a battery module 200 and the aforementioned energy storage distribution cabinet 100.

[0049] The energy storage device of this embodiment includes an energy storage distribution cabinet that integrates an internal management system and a communication management system. The communication management system comprises a main control module, a communication module, and a relay simulation interface. The main control module connects to the internal management system via the relay simulation interface and / or the communication module. The main control module stores preset control logic, sends and receives switch signals via the relay simulation interface, and communicates bidirectionally with the internal management system via the communication module. The switch signals are used to control the start-up or shutdown of the internal management system. By integrating relay simulation functionality into the communication management system, the problem of complex wiring, error-prone installation, and long maintenance times caused by the use of numerous auxiliary relays for logic control in existing containerized energy storage devices is solved. The high integration of the device reduces the number of components within the cabinet, simplifies the cabinet structure, reduces the number of wires, simplifies mass production, lowers the cost of the distribution cabinet and installation failure rate, and improves the convenience of commissioning and maintenance.

[0050] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An energy storage power distribution cabinet, characterized in that, include: Cabinet; The cabinet is equipped with at least an internal management system and a communication management system. The communication management system is equipped with a main control module, a communication module, and a relay simulation interface; The main control module is connected to the cabinet management system via the relay analog interface and / or the communication module. The main control module is used to store preset control logic, send and receive switch signals via the relay analog interface, and communicate bidirectionally with the cabinet management system via the communication module. The switch signal is used to control the start-up or shutdown of the cabinet management system.

2. The energy storage power distribution cabinet of claim 1, wherein, The relay simulation interface includes at least one of the following: DC dry contact interface, DC wet contact interface, AC dry contact interface, AC wet contact interface, AC / DC multiplexing interface, or reserved interface.

3. The energy storage power distribution cabinet of claim 1, wherein, The communication module includes at least one of the following: at least one 4G communication module, at least one SIM card communication module, at least one Ethernet communication module, at least one CAN communication module, at least one RS485 communication module, or at least one RS232 communication module.

4. The energy storage power distribution cabinet of claim 1, wherein, The communication management system further includes: a storage expansion component, which includes a memory card read / write circuit and a memory card slot; The memory card slot is used to connect an external memory card; The memory card read / write circuit is connected to the main control module. The memory card read / write circuit is used to read the data stored in the external memory card and write data to the external memory card.

5. The energy storage power distribution cabinet of claim 4, wherein, The memory card slot includes at least one of the following: a TF memory card slot or a USB memory card slot.

6. The energy storage power distribution cabinet of claim 1, wherein, The communication management system further includes a power supply management unit, which has at least one set of power supply output interfaces; the power supply output interfaces are used to provide power supply voltage to the cabinet management system. The power supply voltage has at least one voltage level.

7. The energy storage power distribution cabinet of any one of claims 1 to 6, wherein, The preset control logic includes multiple auxiliary relay control sub-logics; The number of relay analog interfaces is greater than or equal to the number of auxiliary relay control sub-logic.

8. The energy storage power distribution cabinet of any one of claims 1 to 6, wherein, The cabinet management system includes at least one of the following: a battery management system, a portable uninterruptible power supply system, an in-cabinet detection system, an exhaust management system, an emergency stop system, a liquid cooling management system, a fire management system, or an explosion-proof fan system.

9. The energy storage distribution cabinet according to any one of claims 1 to 6, characterized in that, The cabinet is also equipped with a communication terminal block, which is used to connect the cabinet management system to the communication management system. The communication terminal block is also equipped with a common ground terminal and a reserved terminal; The common ground terminal is connected to the grounding terminal of the cabinet and is used to provide the same grounding potential to all systems connected to the communication terminal block.

10. An energy storage device, characterized by, include: Battery module, and energy storage distribution cabinet as described in any one of claims 1 to 9.

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