High-voltage box and energy storage system

Abstract

The utility model discloses a high-voltage box and an energy storage system, the high-voltage box is connected with a battery module, and the high-voltage box comprises a box body, a main control module, a function expansion module and an electrical member; the function extension module is provided with at least one path of input and output assembly and at least one path of communication assembly, the function extension module is connected with the electrical part based on the input and output assembly and / or the communication assembly, the input and output assembly is used for transmitting analog quantity and / or digital quantity signals, and the communication assembly is used for transmitting communication data; the main control module is in bidirectional connection with the function extension module, and the main control module is used for issuing configuration information to the function extension module and receiving a feedback signal uploaded by the function extension module; and the function extension module is used for receiving configuration information and controlling the input / output component and the communication component to input or exit. According to the utility model, by configuring the function extension module, the number of compatible functions of the high-voltage box is increased, the equipment development and optimization time is saved, and the debugging process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of power energy storage technology, and in particular to a high-voltage box and energy storage system. Background Technology

[0002] An electrochemical energy storage system is a system that uses electrochemical batteries as the energy storage medium and performs energy storage and release through an energy storage converter. The high-voltage box is used to control the connection or disconnection of battery modules in the energy storage system and is an important component of the system.

[0003] Existing high-voltage boxes for electrochemical energy storage systems typically employ a uniform design approach, combining components such as contactors, circuit breakers, fuses, power modules, and BMS (Battery Management System) modules. The internal design logic of these boxes is simple, the structure is basic, and the functionality is limited. Once the high-voltage box is manufactured, it is difficult to add functionality, resulting in high equipment limitations, an inability to meet customized needs, and a compact internal structure that is unsuitable for functional optimization and equipment upgrades. Utility Model Content

[0004] This utility model provides a high-voltage box and energy storage system to solve the problems of the existing high-voltage box having a single internal structure and function, and difficulty in achieving functional optimization and equipment upgrades. By configuring a function expansion module, the system saves on equipment development and optimization costs.

[0005] According to one aspect of this utility model, a high-voltage box is provided, which is connected to a battery module. The high-voltage box includes: a box body, a main control module, a function expansion module, and electrical components. The function expansion module is provided with at least one input / output component and at least one communication component. The function expansion module is connected to the electrical components based on the input / output component and / or the communication component. The input / output component is used to transmit analog and / or digital signals, and the communication component is used to transmit communication data. The main control module is bidirectionally connected to the function expansion module. The main control module is used to send configuration information to the function expansion module and receive feedback signals uploaded by the function expansion module. The function expansion module is used to receive the configuration information and control the input / output component and the communication component to be engaged or disengaged.

[0006] Optionally, the functional expansion module includes a pressure plate management unit or a multiplexer switch; the pressure plate management unit is used to store the pressure plate management program and control the input / output components and the communication components to be engaged or disengaged; the multiplexer switch is used to execute logic output according to the configuration information and control the input / output components and the communication components to be engaged or disengaged.

[0007] Optionally, the functional expansion module and the main control module are integrated on the same motherboard; the motherboard is provided with at least one I / O interface and at least one communication interface, the I / O interface is used to connect the electrical components or external devices arranged outside the enclosure; the communication interface is used to connect the electrical components or a host computer arranged outside the enclosure.

[0008] Optionally, the communication interface includes at least one of the following: a CAN bus interface, an RS85 interface, an RS232 interface, or a multiplexing conversion interface.

[0009] Optionally, the I / O interface includes at least one of the following: a digital signal input interface, a digital signal output interface, an analog signal input interface, an analog signal output interface, or a multiplexed interface.

[0010] Optionally, the enclosure is provided with an operation panel; the surface of the operation panel is provided with a switch element, an indicator element, a terminal block and at least one pluggable connector; the switch element is used to provide a switching signal to the I / O interface; the indicator element is used to issue an indicator signal according to the switching signal output by the I / O interface; the terminal block is used to connect to the battery module; the first sub-plug of the pluggable connector is connected to the I / O interface and / or the communication interface, and the second sub-plug of the pluggable connector is connected to the external device and / or the host computer.

[0011] Optionally, the functional expansion module further includes an analog-to-digital conversion circuit, which is used to perform analog-to-digital conversion processing on the feedback signal.

[0012] Optionally, the main control module further includes a battery management unit, which is used to monitor the operation and manage the charging and discharging of the battery module.

[0013] Optionally, the electrical components include at least one of the following: a pre-charge contactor, a main positive contactor, a main negative contactor, a switching power supply, an AC relay, a circuit breaker, a fuse, a Hall sensor, an overheat protection element, or a surge protection element.

[0014] According to another aspect of the present invention, an energy storage system is provided, comprising: a battery module and the aforementioned high-voltage box.

[0015] The technical solution of this utility model embodiment includes a main control module and a function expansion module. The function expansion module has at least one input / output component and at least one communication component, and is connected to electrical components based on the input / output component and / or communication component. The main control module and the function expansion module are bidirectionally connected. The main control module sends configuration information to the function expansion module and receives feedback signals uploaded by the function expansion module. After receiving the configuration information, the function expansion module controls the corresponding input / output component and communication component to be engaged or disengaged, thereby controlling the operation or disengagement of electrical components. This solves the problem that the existing high-voltage box has a single internal structure and function, and it is difficult to optimize functions and update equipment. By configuring the function expansion module, the number of functions that the high-voltage box can be compatible with is increased. The corresponding components can be engaged or disengaged according to customized needs, saving equipment development and optimization time, simplifying the debugging process, and saving labor and development costs.

[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 a high-pressure box provided in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the main board of a high-voltage box provided in Embodiment 1 of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the operation panel of a high-pressure box provided in Embodiment 1 of this utility model;

[0021] Figure 4 A perspective view of the internal installation structure of a high-voltage box provided in Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of another high-pressure box provided in Embodiment 1 of this utility model;

[0023] Figure 6 This is a schematic diagram of an energy storage system provided in Embodiment 2 of the present invention. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Example 1

[0027] Figure 1 This is a schematic diagram of a high-voltage box according to Embodiment 1 of the present invention. This embodiment is applicable to application scenarios where a DC battery-side high-voltage box is used for energy storage system management. Figure 1 As shown, the high-voltage box 1 is connected to the battery module 2, and the high-voltage box 1 is used for operation control, protection and monitoring of the battery module 2.

[0028] See Figure 1 As shown, the high-voltage box 1 includes: a box body 110, a main control module 120, a function expansion module 130, and electrical components 140. At least some components of the main control module 120, the function expansion module 130, or the electrical components 140 are disposed within the box body 110. The function expansion module 130 is provided with at least one input / output component 131 and at least one communication component 132. The function expansion module 130 is connected to the electrical components 140 based on the input / output component 131 and / or the communication component 132. The main control module 120 is bidirectionally connected to the function expansion module 130. The main control module 120 is used to send configuration information to the function expansion module 130 and receive feedback signals uploaded by the function expansion module 130. The function expansion module 130 is used to receive configuration information and control the input / output component 131 and the communication component 132 to be engaged or disengaged.

[0029] In this application, the box 110 may adopt a drawer-type structure.

[0030] In this application, the main control module 120 may be a chip that integrates the operation control, protection and monitoring functions of the battery module 2.

[0031] In this application, the input / output component 131 is an electrical component for transmitting analog signals and / or digital signals. Typically, the input / output component 131 includes, but is not limited to, a signal input interface, a signal output interface, and signal processing circuitry.

[0032] In this application, the communication component 132 is an electrical component used for transmitting communication data. Typically, the communication component 132 includes, but is not limited to, a communication interface and a communication signal processing circuit.

[0033] In this application, the function expansion module 130 can be a module that upgrades software programs or configures interfaces based on configuration information issued by the main control module 120 to achieve function expansion.

[0034] In this application, the configuration information includes, but is not limited to, interface combination configuration information and communication protocol configuration information. The interface combination configuration information indicates at least one combination of a plurality of pre-configured interface combinations. The communication protocol configuration information is used to configure the communication protocol.

[0035] Specifically, the function expansion module 130 internally reserves at least one input / output component 131 (including an interface) and at least one communication component 132 (including an interface). Users configure interface combination configuration information and communication protocol configuration information in the main control module 120 according to actual needs. The function expansion module 130 enables the target interface corresponding to the interface combination configuration information according to the interface combination configuration information, and obtains the corresponding communication protocol from the communication protocol library according to the communication protocol configuration information. Based on the communication protocol, it opens the function of the target interface and controls the corresponding input / output component 131 and communication component 132 to be engaged or disengaged, thereby controlling the operation or disengagement of electrical components. By configuring the function expansion module, the number of compatible functions of the high-voltage box is increased, and the corresponding components can be engaged or disengaged according to customized requirements. This solves the problems of the existing high-voltage box's internal structure and function being singular, and the difficulty in achieving functional optimization and equipment updates. It saves equipment development and optimization time, simplifies the debugging process, and saves labor and development costs.

[0036] Optionally, the function expansion module 130 is provided with a pressure plate management unit or a multiplexer switch; the pressure plate management unit is used to store the pressure plate management program and control the input / output component 131 and the communication component 132 to be engaged or disengaged; the multiplexer switch is used to execute logic output according to the configuration information and control the input / output component 131 and the communication component 132 to be engaged or disengaged.

[0037] The pressure plate management unit is a control chip that stores the pressure plate management program. This program enables or disables specific functions by modifying control fields.

[0038] Specifically, the pressure plate management unit parses the configuration information based on the pressure plate management program, obtains the corresponding interface combination configuration information and communication protocol configuration information, and controls the corresponding input / output components 131 and communication components 132 to be activated according to the interface combination configuration information and communication protocol configuration information, and controls the deactivation of input / output components 131 and communication components 132 that do not need to be activated. When it is necessary to enable functions, only a program upgrade of the pressure plate management program is needed to expand the functionality.

[0039] The configuration information for the multiplexer can be in binary encoding format, such as 0110. After receiving the configuration information, the multiplexer executes the corresponding logic output based on the binary encoding. For example, a bit code can be set to correspond to one input / output component 131 or one communication component 132. When the bit code is 1, the corresponding input / output component 131 or communication component 132 is activated; when the bit code is 0, the corresponding input / output component 131 or communication component 132 is deactivated. Custom functions and interface configurations can be implemented through software circuitry or hardware circuitry, resulting in a simple structure and convenient operation.

[0040] See Figure 2 As shown, the function expansion module 130 and the main control module 120 are integrated on the same motherboard 150; the motherboard 150 is provided with at least one I / O interface and at least one communication interface. The I / O interface is used to connect the electrical component 140 or external devices arranged outside the enclosure 110; the communication interface is used to connect the electrical component 140 or a host computer arranged outside the enclosure 110.

[0041] In this application, the motherboard 150 is a printed circuit board. The motherboard 150 has wiring lines for connecting the functional expansion module 130, the main control module 120, the I / O interface, and the communication interface to form the circuit structure required by the energy storage system.

[0042] See Figure 2 As shown, the communication interface includes at least one of the following: a CAN bus interface (such as CAN_H and CAN_L), an RS85 interface (such as RS485), an RS232 interface, or a multiplexing conversion interface F1. The multiplexing conversion interface F1 can be an interface used to implement the conversion between the CAN bus protocol and the RS85 protocol.

[0043] See Figure 2As shown, the I / O interface includes at least one of the following: digital signal input interface DI, digital signal output interface DO, analog signal input interface AI, analog signal output interface AO, or multiplexed interface F2. Among them, the multiplexed interface F2 is a shared interface for analog and digital signals. By reserving multiple communication and I / O interfaces, the high-voltage box's functional expansion and customized communication protocols can be supported, allowing for flexible configuration of hardware functions during the commissioning phase and improving equipment compatibility.

[0044] See Figure 3 and Figure 4 As shown, the housing 110 is provided with an operation panel 111; the surface of the operation panel 111 is provided with a switch element, an indicator element, a terminal block and at least one pluggable connector 112; the switch element is used to provide a switching signal to the I / O interface; the indicator element is used to issue an indicator signal according to the switching signal output by the I / O interface; the terminal block is used to connect the battery module 2; the first sub-plug of the pluggable connector 112 is connected to the I / O interface and / or the communication interface, and the second sub-plug of the pluggable connector is connected to external devices and / or the host computer.

[0045] See Figure 3 As shown, multiple pluggable connectors 112 are provided, and the interfaces to which the connectors are connected can be grouped and merged based on the pin current withstand value and pin spacing of each connector. For example, the first pluggable connector 112 (1#) can be used to connect the digital signal output interface DO and the circuit breaker shunt trip interface; the second pluggable connector 112 (2#) can be used to connect the CAN_H, CAN_L, and RS485 interfaces. In this application, the wiring method of the connectors can be adjusted according to actual needs, and this is not limited.

[0046] See Figure 3 As shown, the switching elements include, but are not limited to: power switch K1, fan switch K2, and circuit breaker switch K3. The indicating elements include, but are not limited to: operation indicator L1 and fault indicator L2. The terminals include the battery positive input terminal A+, battery negative input terminal A-, battery positive output terminal B+, and battery negative output terminal B-. Specifically, power switch K1 provides a switching power supply signal to the function expansion module 130; fan switch K2 provides a cooling fan switching signal to the function expansion module 130; and circuit breaker switch K3 provides a circuit breaker switching signal to the function expansion module 130. The operation indicator L1 illuminates or extinguishes based on the operation status output signal from the function expansion module 130; the fault indicator L2 illuminates or extinguishes based on the fault status output signal from the function expansion module 130.

[0047] See Figure 3As shown, the surface of the operation panel 111 is also provided with a surge grounding point GND. The surge grounding point GND is used to provide grounding protection for the surge protection components inside the enclosure 110.

[0048] See Figure 4 As shown, electrical component 140 includes at least one of the following: precharge contactor K41, main positive contactor K40+, main negative contactor K40-, switching power supply S40, AC relay J40, DC circuit breaker D40, fuse RD40, Hall sensor H40, and overheat protection element ( Figure 4 (not shown) or surge protection element ( Figure 4 (Not shown). In this application, overheat protection components include, but are not limited to, cooling fans. It should be noted that in the embodiments of this application, electrical components can be selected and their layout adjusted according to actual needs, and there are no limitations on this.

[0049] See Figure 5 As shown, the functional expansion module 130 also includes an analog-to-digital conversion circuit 133, which is used to perform analog-to-digital conversion processing on the feedback signal so that the feedback signal matches the signal type of the main control module 120, which is beneficial for expanding the application scenarios of the high-voltage box.

[0050] See Figure 5 As shown, the main control module 120 also includes a battery management unit 121, which is used for monitoring the operation and managing the charging and discharging of the battery module 2. In this application, the reserved I / O interface and reserved communication interface of the function expansion module 130 are compatible with the data transmission interface requirements of the battery management unit 121. By integrating the battery management function and the function expansion module, the function expansion of the DC battery-side high-voltage box is realized.

[0051] Example 2

[0052] Based on the above embodiments, Embodiment 2 of this utility model provides an energy storage system.

[0053] Figure 6 This is a schematic diagram of an energy storage system provided in Embodiment 2 of this utility model. See also... Figure 6 As shown, the energy storage system 100 includes: a battery module 2, and a high-voltage box 1 provided in the above embodiment. The energy storage system 100 has all the functional modules and beneficial effects of the high-voltage box 1 provided in the above embodiment.

[0054] The energy storage system of this embodiment includes a high-voltage box, which integrates a main control module and a function expansion module. The function expansion module has at least one input / output component and at least one communication component, and is connected to electrical components based on the input / output component and / or communication component. The main control module and the function expansion module are bidirectionally connected; the main control module sends configuration information to the function expansion module and receives feedback signals uploaded by the function expansion module. After receiving the configuration information, the function expansion module controls the corresponding input / output component and communication component to engage or disengage, thereby controlling the operation or disengagement of electrical components. This solves the problems of existing high-voltage boxes having limited internal structure and function, and difficulty in optimizing functions and updating equipment. By configuring the function expansion module, the number of compatible functions of the energy storage system is increased, and the corresponding components can be engaged or disengaged according to customized needs, saving equipment development and optimization time, simplifying the debugging process, and reducing labor and development costs.

[0055] 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. A high-pressure tank connected with a battery module, characterized by, The high-voltage box includes: a box body, a main control module, a function expansion module, and electrical components; The functional expansion module is provided with at least one input / output component and at least one communication component. The functional expansion module is connected to the electrical components based on the input / output component and / or the communication component. The input / output component is used to transmit analog and / or digital signals. The communication component is used to transmit communication data. The main control module is bidirectionally connected to the function expansion module. The main control module is used to send configuration information to the function expansion module and receive feedback signals uploaded by the function expansion module. The functional extension module is used to receive the configuration information and control the input / output components and the communication components to be engaged or disengaged.

2. The high pressure tank of claim 1, wherein The functional expansion module is equipped with a pressure plate management unit or a multi-channel selection switch; The pressure plate management unit is used to store the pressure plate management program and control the input / output components and the communication components to be engaged or disengaged. The multiplexer is used to execute logic outputs based on the configuration information, and to control the input / output components and the communication components to be engaged or disengaged.

3. The high pressure tank of claim 1, wherein, The functional expansion module and the main control module are integrated on the same motherboard; The motherboard is provided with at least one I / O interface and at least one communication interface. The I / O interface is used to connect the electrical components or external devices arranged outside the enclosure. The communication interface is used to connect the electrical components or a host computer located outside the enclosure.

4. The high pressure tank of claim 3, wherein, The communication interface includes at least one of the following: CAN bus interface, RS85 interface, RS232 interface, or multiplexing conversion interface.

5. The high pressure tank of claim 3, wherein The I / O interface includes at least one of the following: a digital signal input interface, a digital signal output interface, an analog signal input interface, an analog signal output interface, or a multiplexed interface.

6. The high pressure tank of claim 3, wherein The enclosure is equipped with an operation panel; The operation panel surface is provided with switch elements, indicator elements, terminals and at least one pluggable connector; The switching element is used to provide a switching signal to the I / O interface; The indicating element is used to issue an indicating signal according to the switch signal output by the I / O interface; The terminal block is used to connect to the battery module; The first sub-plug of the pluggable connector is connected to the I / O interface and / or the communication interface, and the second sub-plug of the pluggable connector is connected to the external device and / or the host computer.

7. The high pressure tank according to any one of claims 1 to 6, characterized in that The functional expansion module further includes an analog-to-digital conversion circuit, which is used to perform analog-to-digital conversion processing on the feedback signal.

8. The high pressure tank according to any one of claims 1 to 6, characterized in that The main control module also includes a battery management unit, which is used to monitor the operation and manage the charging and discharging of the battery module.

9. The high pressure tank according to any one of claims 1 to 6, characterized in that The electrical components include at least one of the following: precharge contactor, main positive contactor, main negative contactor, switching power supply, AC relay, circuit breaker, fuse, Hall sensor, overheat protection element, or surge protection element.

10. An energy storage system characterized by, include: Battery module, and high-voltage box as described in any one of claims 1 to 9.

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