Energy storage module and energy storage system
Patent Information
- Application Number
- CN202522236561.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0004]本申请提供了一种储能模组及储能系统，可以解决目前储能模组的通信方式较为单一的问题
本申请提供了一种储能模组及储能系统，该储能模组包括多个储能模块，每个储能模块具有信号输入接口和信号输出接口，且包括控制器、输入信号线、输出信号线和开关组件。输入信号线连接在信号输入接口与控制器的输入端之间，输出信号线连接在信号输出接口与控制器的输出端之间，开关组件连接在输入信号线与输出信号线之间。在多个储能模块的开关组件均断开时，多个储能模块串联通信，在多个储能模块的开关组件均闭合时，多个储能模块并联通信。由此可见，通过在每个储能模块的输入信号线与输出信号线之间设置开关组件，并通过开关组件的闭合与断开，能够切换多个储能模块之间的串并联通信方式，丰富了储能模组的通信方式，从而使得储能模组可以满足多种通信场景下的通信需求。并且，在满足并联通信和串联通信的前提下，无需同时使用并联信号总线和串联信号线将多个储能模块连接，简化储能模块之间的连接线束，有效降低了减少了连接多个储能模块的任务量，降低了连接难度，以及降低了连接错误的风险。
Smart Images
Figure CN224817832U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of energy storage technology, and in particular to an energy storage module and an energy storage system. Background Technology
[0002] An energy storage module consists of multiple energy storage modules. Currently, these modules are mainly connected in parallel via a parallel signal bus for parallel communication, or in series via a series signal line for series communication.
[0003] However, the communication methods of energy storage modules are currently relatively simple. Utility Model Content
[0004] This application provides an energy storage module and an energy storage system, which can solve the problem of the relatively simple communication methods of current energy storage modules. The technical solution is as follows: On one hand, an energy storage module is provided, the energy storage module comprising: multiple cascaded energy storage modules, each energy storage module having a signal input interface and a signal output interface, and including: Controller; An input signal line is provided, which is connected between the input terminal of the controller and the signal input interface of the energy storage module. An output signal line is provided, which is connected between the output terminal of the controller and the signal output interface of the energy storage module. A switching assembly connected between the input signal line and the output signal line; When all the switching components of the multiple energy storage modules are open, the multiple energy storage modules communicate in series; when all the switching components of the multiple energy storage modules are closed, the multiple energy storage modules communicate in parallel.
[0005] Optionally, the switching component includes a transistor.
[0006] Optionally, the transistor is a field-effect transistor; The first terminal of the field-effect transistor is connected to the input signal line, the second terminal of the field-effect transistor is connected to the output signal line, and the control terminal of the field-effect transistor is connected to the controller.
[0007] Optionally, the switching assembly further includes a diode; The diode is connected in series with the field-effect transistor.
[0008] Optionally, the energy storage module further includes: an isolator; The isolator is connected between the input terminal and the input signal line, and between the output terminal and the output signal line.
[0009] Optionally, the switching assembly includes a relay.
[0010] Optionally, the controller includes a main control circuit and a communication module connected to the main control circuit.
[0011] On the other hand, an energy storage system is provided, the energy storage system comprising: The energy storage module as described above.
[0012] Optionally, there may be multiple energy storage modules; multiple energy storage modules may be cascaded.
[0013] Optionally, each of the switching components includes: a field-effect transistor and a diode; Each of the energy storage modules comprises multiple energy storage modules that communicate in parallel.
[0014] The beneficial effects of the technical solution provided in this application include at least the following: This application provides an energy storage module and an energy storage system. The energy storage module includes multiple energy storage modules, each with a signal input interface and a signal output interface, and includes a controller, input signal lines, output signal lines, and a switching component. The input signal line is connected between the signal input interface and the input terminal of the controller, the output signal line is connected between the signal output interface and the output terminal of the controller, and the switching component is connected between the input signal line and the output signal line. When all the switching components of the multiple energy storage modules are open, the multiple energy storage modules communicate in series; when all the switching components of the multiple energy storage modules are closed, the multiple energy storage modules communicate in parallel. Therefore, by setting a switching component between the input signal line and the output signal line of each energy storage module, and by switching the switching components on and off, the series and parallel communication modes between the multiple energy storage modules can be switched, enriching the communication modes of the energy storage module and enabling the energy storage module to meet the communication needs of various communication scenarios. Furthermore, while satisfying both parallel and series communication requirements, it eliminates the need to connect multiple energy storage modules simultaneously using parallel signal buses and series signal lines. This simplifies the wiring harness between energy storage modules, effectively reducing the workload of connecting multiple energy storage modules, lowering connection difficulty, and reducing the risk of connection errors.
[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an energy storage module provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an energy storage module provided in an embodiment of this application; Figure 3 This is a schematic diagram of another energy storage module provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of another energy storage module provided in the embodiments of this application; Figure 5 This is a schematic diagram of another energy storage module provided in the embodiments of this application. Detailed Implementation
[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0018] Figure 1 This is a schematic diagram of the structure of an energy storage module provided in an embodiment of this application. See also... Figure 1 The energy storage module may include: multiple cascaded energy storage modules 100, for example Figure 1 The diagram shows N energy storage modules 100. N is an integer greater than 1. Cascading refers to multiple energy storage modules 100 connected end-to-end. Figure 2 This is a schematic diagram of the structure of an energy storage module provided in an embodiment of this application. See also... Figure 2 Each energy storage module 100 has a signal input interface A1 and a signal output interface A2. Combined with... Figure 1 and Figure 2 It can be seen that the signal input interface A1 of each energy storage module 100 can be connected to the signal output interface A2 of the previous stage energy storage module 100, and the signal output interface A2 of each energy storage module 100 can be connected to the signal input interface of the next stage energy storage module 100.
[0019] Please continue reading Figure 2 Each energy storage module 100 includes: a controller 01, an input signal line 02, an output signal line 03, and a switching assembly 04. The input signal line 02 is connected between the input terminal (i.e., input I / O port) of the controller 01 and the signal input interface A1 of the energy storage module 100. The output signal line 03 is connected between the output terminal (i.e., output I / O port) of the controller 01 and the signal output interface A2 of the energy storage module 100. The switching assembly 04 is connected between the input signal line 02 and the output signal line 03.
[0020] With the switching components 04 of multiple energy storage modules 100 all disconnected, the input signal line 02 and output signal line 03 of each energy storage module 100 are connected in series, enabling the multiple energy storage modules 100 to communicate in series. Series communication refers to the method where multiple energy storage modules 100 form a transmission link, and the communication signal (hereinafter referred to as the signal) is transmitted sequentially down the transmission link among the multiple energy storage modules 100. Furthermore, the signal can only be transmitted to the next energy storage module 100 after being received and processed by the previous energy storage module 100. Specifically, the controller 01 of each energy storage module 100 can receive downlink or uplink signals from the previous energy storage module 100, process the received signals according to the communication protocol, and then send the processed signals to the next energy storage module 100, thereby achieving serial signal transmission. This allows for accurate determination of the location of each energy storage module 100, enabling timely repair of any energy storage module 100 in the event of a failure.
[0021] With all switching components 04 of multiple energy storage modules 100 closed, a portion of the input signal line 02 and a portion of the signal lines of the switching component 04 and output signal line 03 of each energy storage module 100 are connected to form a parallel circuit, enabling the multiple energy storage modules 100 to communicate in parallel. Parallel communication means that multiple energy storage modules 100 share this parallel circuit, and the signal is broadcast directly in this parallel circuit without needing to be forwarded by other modules 100. At this time, the controller 01 can receive the input signal and directly forward the received input signal to the signal output interface A2, and read data from the input signal, thereby realizing parallel signal transmission. Thus, any energy storage module 100 can broadcast and send data, and any two energy storage modules 100 can directly send data to each other.
[0022] In summary, this application provides an energy storage module comprising multiple energy storage modules, each having a signal input interface and a signal output interface, and including a controller, input signal lines, output signal lines, and a switching component. The input signal line is connected between the signal input interface and the input terminal of the controller, the output signal line is connected between the signal output interface and the output terminal of the controller, and the switching component is connected between the input signal line and the output signal line. When all switching components of the multiple energy storage modules are open, the multiple energy storage modules communicate in series; when all switching components of the multiple energy storage modules are closed, the multiple energy storage modules communicate in parallel. Therefore, by setting a switching component between the input and output signal lines of each energy storage module, and by switching the components on and off, the series and parallel communication modes between the multiple energy storage modules can be switched, enriching the communication methods of the energy storage module and enabling it to meet the communication needs of various communication scenarios. Furthermore, while satisfying both parallel and series communication requirements, it eliminates the need to connect multiple energy storage modules simultaneously using parallel signal buses and series signal lines. This simplifies the wiring harness between energy storage modules, effectively reducing the workload of connecting multiple energy storage modules, lowering connection difficulty, and reducing the risk of connection errors.
[0023] Optionally, the controller 01 can control the closing and opening of the switching components 04. For example, when multiple energy storage modules 100 need to transmit signals serially, the controller 01 can control the switching components 04 of multiple energy storage modules 100 to open. When multiple energy storage modules 100 need to transmit signals in parallel, the controller 01 can control the switching components 04 of multiple energy storage modules 100 to close.
[0024] It is understandable that when multiple energy storage modules 100 communicate in series, the transmitted signals can be physical addressing signals. In this case, after receiving the physical address signal sent by the previous energy storage module 100, the next-level energy storage module 100 can determine its own physical address and further send its own physical address signal according to the communication protocol. When multiple energy storage modules 100 communicate in parallel, the transmitted signals can include one of the following: CAN signal, RS485 signal, synchronization signal (such as a clock synchronization signal), and fault rapid reporting signal. This allows for the fulfillment of communication needs in different communication scenarios.
[0025] In some alternative embodiments, the switching component 04 may include a transistor 041. Optionally, the transistor 041 may be a field-effect transistor, a bipolar transistor, or an insulated gate bipolar transistor (IGBT).
[0026] For example, see Figure 3The transistor 041 can be a field-effect transistor (FET). The first terminal of this FET can be connected to the input signal line 02, the second terminal can be connected to the output signal line 03, and the control terminal can be connected to the controller 01. The first terminal can be one of the source and drain terminals of the FET, the second terminal can be the other of the source and drain terminals, and the control terminal can be the gate terminal of the FET.
[0027] Optionally, the field-effect transistor can be a metal-oxide-semiconductor (MOS) field-effect transistor (or simply MOS transistor). For example, the MOS transistor can be a P-channel MOS transistor, or simply a PMOS transistor, or... Figure 3 The N-channel MOSFET shown is simply referred to as an NMOS transistor.
[0028] In this embodiment, since the control grounds inside different energy storage modules 100 may be different, but they need the same ground to communicate with each other, therefore see... Figure 3 The energy storage module 100 may further include an isolator 05. The isolator 05 is connected between the input terminal of the controller 01 and the input signal line 02, and between the output terminal of the controller 01 and the output signal line 03, to isolate the controller 01 from the signal lines.
[0029] Taking switch assembly 04 as an example Figure 3 Taking the NMOS transistor shown as an example, the switching process of the series-parallel communication mode of multiple energy storage modules 100 is illustrated. Figure 3 middle, V 1- V n is the communication signal. V g is the driving voltage of NMOS transistor 041.
[0030] Assumption V 1- V n represents different DC voltage signals with low amplitudes, for example, greater than 0 volts (V) and less than or equal to 5V. When multiple energy storage modules 100 need to communicate in series, the drive voltage of all NMOS transistors 041 can be adjusted. V g represents the first voltage value. This first voltage value is less than... V 1- V The voltage values of each DC voltage signal in n. For example, the first voltage value is 0V. Because V 1- V n is 0V-5V, and the source voltage of NMOS transistor 041 is the voltage value of the corresponding DC voltage signal. Therefore, the NMOS transistor 041's... V The voltage range of gs is -5V to 0V, which is the drive voltage of NMOS transistor 041.V g is less than or equal to the source voltage. V At this point, NMOS transistor 041 is stably turned off without any risk of damage, thus enabling multiple energy storage modules 100 to communicate in series. When multiple energy storage modules 100 communicate in series, as... Figure 3 As shown, energy storage module k can receive signals from the previous energy storage module k-1. V k It can also send signals to the next-level energy storage module k+1. V k+1 .
[0031] When multiple energy storage modules 100 need to communicate in parallel, the drive voltage of all NMOS transistors 041 can be adjusted. V g represents the second voltage value, which is greater than... V 1- V The voltage values of each DC voltage signal in n. For example, the second voltage value can be 10V. At this time, all NMOS transistors 041 V The voltage range of gs is 0-5V, which is the voltage range of NMOS transistor 041. V g is greater than V Therefore, all NMOS transistors 041 are turned on, allowing a portion of the input signal lines 02 and the output signal lines 03 of the multiple energy storage modules 100 to be combined into a single parallel signal line. This allows any energy storage module 100 to directly transmit and receive signals on this parallel signal line. In other words, any signal transmitted by any energy storage module 100 can be received by the other energy storage modules 100.
[0032] It is understandable that when the energy storage module 100 communicates in series, the input signal (such as...) V k ) and output signal (such as V k+1 The signals should be different and independent DC voltage signals. Since the NMOS transistor 041 includes a body diode (also called a parasitic diode), when the energy storage module 100 communicates in series, it is necessary to ensure... V k+1 Less than V k To prevent the body diode of NMOS transistor 041 from conducting, V k With V k+1 The voltage is pulled to be uniform, thus causing V k With V k+1 They influence each other.
[0033] Optionally, the DC voltage signal mentioned above can be generated by an analog isolator, or by a digital isolator outputting a pulse width modulation (PWM) wave and filtering it with a low-pass filter.
[0034] Optional, see Figure 4 The switching assembly 04 also includes a diode 042, which is connected in series with the transistor 041.
[0035] By setting diode 042, after NMOS transistor 041 is turned off, the forward blocking of NMOS transistor 041 and the reverse blocking of diode 042 can completely block the input signal and output signal 03 of any energy storage module 100, effectively avoiding crosstalk problems. This allows multiple energy storage modules 100 to communicate using any signal, i.e., communication signal... V 1- V n can be any communication signal. This arbitrary communication signal can include, but is not limited to, one of the following: DC voltage signal, PWM signal, and various encoded signals (such as conventional high and low level encoded signals).
[0036] In some exemplary embodiments, such as Figure 4 As shown, the anode of the diode 042 can be connected to the input signal line 02, and the cathode of the diode 042 can be connected to the first terminal of the NMOS transistor 041.
[0037] Understandably, for Figure 4 In parallel communication, the switch assembly 04 shown can only broadcast signals downwards because diode 042 can only conduct in the forward direction.
[0038] Please continue reading Figure 4 The controller 01 may include a main control circuit 011 and a communication module 012. The main control circuit 011 is connected to the communication module 012, and the input terminal of the communication module 012 can be used as the input terminal of the controller 01, and is connected to the signal input interface A1 through the input signal line 02. The output terminal of the communication module 012 can be used as the output terminal of the controller 01, and is connected to the signal output interface A2 through the output signal line 03.
[0039] In some other alternative embodiments, see Figure 5 The switching component 04 can be a relay. Because the relay provides bidirectional blocking, the signal from the energy storage module 100 during series communication can be any communication signal. Furthermore, since the relay coil and contacts are isolated, the controller 01 can directly drive the relay without requiring an isolator.
[0040] by Figure 5Taking the switch assembly 04 as an example, when multiple energy storage modules 100 need to communicate in series, all relays are disconnected. When multiple energy storage modules 100 need to communicate in parallel, all relays are engaged.
[0041] It is understood that the signals transmitted by the multiple energy storage modules 100 may include clock signals and data signals. If the multiple energy storage modules 100 need to synchronize their clocks, they can communicate in parallel when transmitting the clock synchronization signal, and switch between serial and parallel communication modes in the same manner when transmitting data signals. If the multiple energy storage modules 100 do not need to synchronize their clocks, they can switch between serial and parallel communication modes when transmitting the clock synchronization signal.
[0042] In summary, this application provides an energy storage module comprising multiple energy storage modules, each having a signal input interface and a signal output interface, and including a controller, input signal lines, output signal lines, and a switching component. The input signal line is connected between the signal input interface and the input terminal of the controller, the output signal line is connected between the signal output interface and the output terminal of the controller, and the switching component is connected between the input signal line and the output signal line. When all switching components of the multiple energy storage modules are open, the multiple energy storage modules communicate in series; when all switching components of the multiple energy storage modules are closed, the multiple energy storage modules communicate in parallel. Therefore, by setting a switching component between the input and output signal lines of each energy storage module, and by switching the components on and off, the series and parallel communication modes between the multiple energy storage modules can be switched, enriching the communication methods of the energy storage module and enabling it to meet the communication needs of various communication scenarios. Furthermore, while satisfying both parallel and series communication requirements, it eliminates the need to connect multiple energy storage modules simultaneously using parallel signal buses and series signal lines. This simplifies the wiring harness between energy storage modules, effectively reducing the workload of connecting multiple energy storage modules, lowering connection difficulty, and reducing the risk of connection errors.
[0043] This application provides an energy storage system, which includes an energy storage module as described in the above device embodiment.
[0044] Optionally, there can be multiple energy storage modules. Multiple energy storage modules can be cascaded.
[0045] In this embodiment of the application, when each switching component 04 includes a field-effect transistor 041 and a diode 042, the multiple energy storage modules included in each energy storage module can communicate in parallel. For example, multiple energy storage modules can communicate in series, and the multiple energy storage modules 100 included in each energy storage module can communicate in parallel.
[0046] Since diode 042 generates a certain voltage drop when it is in the conducting state, for the case where the switching component 04 includes transistor 041 and diode 042, the problem of excessive voltage drop of diode 042 can be effectively improved by making the multiple energy storage modules 100 included in each energy storage module communicate in parallel.
[0047] In this embodiment, for each energy storage module, the switching component 04 of the first energy storage module 100 can be controlled to be open, while the switching components 04 of the other energy storage modules 100 are closed. This allows the multiple energy storage modules 100 in each energy storage module to communicate in parallel, and adjacent energy storage modules to communicate in series. Thus, the first energy storage module 100 in each energy storage module can broadcast communication downwards.
[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0049] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0051] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. An energy storage module, characterized in that, The energy storage module includes: multiple cascaded energy storage modules, each of which has a signal input interface and a signal output interface, and includes: Controller; An input signal line is provided, which is connected between the input terminal of the controller and the signal input interface of the energy storage module. An output signal line is provided, which is connected between the output terminal of the controller and the signal output interface of the energy storage module. A switching assembly connected between the input signal line and the output signal line; When all the switching components of the multiple energy storage modules are open, the multiple energy storage modules communicate in series; when all the switching components of the multiple energy storage modules are closed, the multiple energy storage modules communicate in parallel.
2. The energy storage module according to claim 1, characterized in that, The switching assembly includes a transistor.
3. The energy storage module according to claim 2, characterized in that, The transistor is a field-effect transistor; The first terminal of the field-effect transistor is connected to the input signal line, the second terminal of the field-effect transistor is connected to the output signal line, and the control terminal of the field-effect transistor is connected to the controller.
4. The energy storage module according to claim 3, characterized in that, The switching assembly further includes: a diode; The diode is connected in series with the field-effect transistor.
5. The energy storage module according to any one of claims 2 to 4, characterized in that, The energy storage module also includes: an isolator; The isolator is connected between the input terminal and the input signal line, and between the output terminal and the output signal line.
6. The energy storage module according to claim 1, characterized in that, The switching assembly includes: a relay.
7. The energy storage module according to claim 1, characterized in that, The controller includes a main control circuit and a communication module connected to the main control circuit.
8. An energy storage system, characterized in that, The energy storage system includes: The energy storage module as described in any one of claims 1-7.
9. The energy storage system according to claim 8, characterized in that, The number of energy storage modules is multiple; multiple energy storage modules are cascaded.
10. The energy storage system according to claim 9, characterized in that, Each of the switching components includes: a field-effect transistor and a diode; Each of the energy storage modules comprises multiple energy storage modules that communicate in parallel.