Detection device and detection method for flow battery stack control box

Abstract

The invention relates to a flow battery stack control box detection device and a detection method thereof. The detection device comprises a test fixture and a test cabinet, the test fixture is used for being connected with a test board, and the test board comprises at least one of a system control board, an input and output board and a charging board; the test cabinet is connected with the test fixture, the test cabinet is used for inputting a test signal to the test board through the test fixture and obtaining test data returned by the test board according to the test signal, and the test cabinet is used for determining a test result according to the test data. According to the application, the test fixture is arranged to connect the test board, the test cabinet is arranged to input the test signal to the test board through the test fixture, and the test data returned by the test board according to the test signal is acquired to determine the test result according to the test data, so that the quality detection of the test board is automatically completed; and the detection efficiency of the control circuit board in the stack control box is improved.

Description

Technical Field

[0001] This application relates to the technical field of stack control box detection, and particularly to a detection device and method for a liquid flow battery stack control box. Background Art

[0002] With the development of energy storage technology, the liquid flow battery technology has emerged. A liquid flow battery is an electrochemical energy storage device based on redox reactions. When in use, it generally requires a stack control box (SCK) to monitor and manage the battery stack of the liquid flow battery. A variety of sensors and control circuit boards are integrated inside the stack control box. Therefore, the quality of the control circuit board is particularly important for the reliability of the stack control box. In related technologies, a manual testing method (such as manual wiring, setting instrument parameters, powering on, observing test results, and differentiating test results) is used to detect the quality of the control circuit board in the stack control box, but the detection efficiency of this detection method is relatively low. Summary of the Invention

[0003] Based on this, it is necessary to provide a detection device and method for a liquid flow battery stack control box that can improve the detection efficiency for the above technical problems.

[0004] In a first aspect, this application proposes a detection device for a liquid flow battery stack control box, including: a test fixture for connecting a test board, where the test board includes at least one of a system control board, an input / output board, and a charging board; a test cabinet connected to the test fixture, where the test cabinet is configured to input test signals to the test board through the test fixture and obtain test data returned by the test board according to the test signals, and the test cabinet is configured to determine a test result based on the test data.

[0005] In one embodiment, the test cabinet includes: a test host, a power supply module, and a test module. The test host is connected to the power supply module, and the test fixture is connected to the power supply module. The test host is configured to input a supply voltage to the test board through the power supply module and the test fixture; the test host is connected to the test module, and the test fixture is connected to the test module. The test host is configured to input the test signals to the test board through the test module and the test fixture and obtain the test data returned by the test board according to the test signals.

[0006] In one embodiment, the test module includes: a control board tester respectively connected to the test host and the test fixture. The test host is configured to input the test signals to the system control board through the control board tester and the test fixture and obtain the test data returned by the system control board according to the test signals.

[0007] In one embodiment, the test host is connected to the system control board, and the test host is configured to input a control signal to the system control board.

[0008] In one embodiment, the test module includes: a first programmable power supply and a test tooling board. The first programmable power supply is respectively connected to the test host and the test tooling board. The test tooling board is connected to the test fixture. The first programmable power supply is configured to input the test signal to the input / output board through the test tooling board and the test fixture, and acquire the test data returned by the input / output board according to the test signal.

[0009] In one embodiment, the test module includes: a second programmable power supply and an electronic load. The second programmable power supply is respectively connected to the test host and the test fixture. The electronic load is respectively connected to the test host and the test fixture. The test host is configured to input the test signal to the charging board through the second programmable power supply and the test fixture, and acquire the test data returned by the charging board according to the test signal. The test host is configured to control the load size of the charging board through the electronic load.

[0010] In a second aspect, the present application further provides a detection method for a flow battery stack control box detection device, which is applied to the flow battery stack control box detection device described in the embodiments of the first aspect. The method includes: connecting a test board to a test fixture; configuring test parameters in a test cabinet; detecting the test board based on the test parameters to obtain test data; and determining a test result based on the test data.

[0011] In one embodiment, the step of determining the test result based on the test data includes: calculating a data error between the test data and standard data. When the data error is less than or equal to a preset threshold, determining that the test result passes the test; when the data error is greater than the preset threshold, determining that the test result fails the test.

[0012] In one embodiment, after the step of determining the test result based on the test data, the method further includes: displaying the test result in a user interaction interface.

[0013] In one embodiment, after the step of determining the test result based on the test data, the method further includes: acquiring historical test data; wherein the historical test data includes multiple test results; and determining statistical data based on the historical test data; wherein the statistical data includes at least one of: the total number of tests, the number of good products, and the number of defective products.

[0014] The above-mentioned flow battery stack control box detection device and its detection method connect a test fixture to a test board, set up a test cabinet to input a test signal to the test board through the test fixture, and simultaneously obtain the test data returned by the test board according to the test signal, so as to determine the test result based on the test data, thereby automatically completing the quality detection of the test board and improving the detection efficiency of the control circuit board in the stack control box. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a module schematic diagram of a flow battery stack control box detection device in an embodiment;

[0017] Figure 2 It is a module schematic diagram of a test cabinet in an embodiment;

[0018] Figure 3 It is a module schematic diagram of a test module in an embodiment;

[0019] Figure 4 It is a module schematic diagram of a test module in another embodiment;

[0020] Figure 5 It is a module schematic diagram of a test module in yet another embodiment;

[0021] Figure 6 It is a flowchart schematic diagram of a control method in an embodiment;

[0022] Figure 7 It is a flowchart schematic diagram of a control method in another embodiment;

[0023] Description of the Reference Numerals:

[0024] Test fixture 100, test cabinet 200, test host 210, power module 220, test module 230, control board tester 231, first programmable power supply 232, test tooling board 233, second programmable power supply 234, electronic load 235. Detailed Embodiments

[0025] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] It can be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0028] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or connected to the other element through an intermediate element. In addition, in the following embodiments, "connection", if there is a transfer of electrical signals or data between the connected objects, should be understood as "electrical connection", "communication connection", etc.

[0029] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising", "including" or "having", etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0030] In one embodiment, as Figure 1 shown, a detection device for a liquid flow battery stack control box is provided, including: a test fixture 100 and a test cabinet 200. The test fixture 100 is used to connect a test board, and the test board includes at least one of a system control board, an input / output board, and a charging board. The test cabinet 200 is connected to the test fixture 100. The test cabinet 200 is used to input a test signal to the test board through the test fixture 100 and obtain test data returned by the test board according to the test signal. The test cabinet 200 is used to determine a test result according to the test data.

[0031] Specifically, the test fixture 100 is the hub for the connection between the detection device and the test board. It has a special mechanical structure and electrical interface, and can accurately dock with at least one of the system control board, input / output board (IO board), and charging board. For example, for different types of test boards, the test pin layout and connection method on the test fixture 100 are specially designed to ensure reliable connection with each test point on the test board. This connection can not only stably transmit test signals, but also ensure the fixed position of the test board during the test, avoiding inaccurate test data caused by unstable connection or position deviation.

[0032] The test cabinet 200 can be communicatively connected to the test fixture 100 through connection methods such as cable lines. The test cabinet 200 can generate and send various test signals to the test fixture 100. These test signals are determined according to the test requirements of different test boards. For example, for the system control board, electrical signals simulating various working scenarios can be input to detect its response ability to different signals; for the input / output board, specific digital or analog signals can be input to test the accuracy of its input / output function; for the charging board, charging signals with different voltages and currents can be input to test its charging performance. When the test board receives the test signals, it will return corresponding test data according to its own performance and status. The test cabinet 200 obtains these data in real time through the connection line with the test fixture 100. For example, the system control board may return processed signal data, the input / output board may return input / output response data, and the charging board may return voltage and current change data during the charging process, etc. The test cabinet 200 also has the function of data analysis and processing. Through preset algorithms and standards, it analyzes the obtained test data. For example, the test data is compared with the preset qualified range. If the data is within the range, it is determined that the corresponding function of the test board is qualified; if it exceeds the range, it is judged as unqualified. Finally, according to the analysis results, corresponding test results are generated and presented to the test personnel in an intuitive form (such as display on the display screen, output of data reports, etc.), so as to assist the test personnel to conveniently and quickly judge whether the test board meets the quality requirements, complete the quality inspection of the test board, and improve the detection efficiency of the control circuit board in the stack control box.

[0033] In one embodiment, as Figure 2As shown in the figure, the test cabinet 200 includes a test host 210, a power module 220, and a test module 230. The test host 210 is connected to the power module 220, and the test fixture 100 is connected to the power module 220. The test host 210 is used to input a power supply voltage to the test board through the power module 220 and the test fixture 100. The test host 210 is connected to the test module 230, and the test fixture 100 is connected to the test module 230. The test host 210 is used to input a test signal to the test board through the test module 230 and the test fixture 100, and obtain the test data returned by the test board according to the test signal.

[0034] Specifically, the test host 210 is a device with functions of complex calculation, data acquisition, and task analysis, such as a personal computer (PC). The test host 210 is communicatively connected to the power module 220 and the test module 230 respectively, and controls the entire test process by outputting corresponding control instructions. The test host 210 can control the power supply voltage output by the power module 220, thereby adjusting the power supply voltage input to the test board through the test fixture 100 to ensure that the test board operates under a normal working voltage. The test host 210 can also control the test signal output by the test module 230, thereby adjusting the test signal input to the test board through the test fixture 100. It can be understood that for different types of test boards, the test signals are also different. Correspondingly, the specific setting methods of the test module 230 are also different. At the same time, the test host 210 also has strong data processing capabilities. It is used to receive and process the test data returned by the test board according to the test signal, providing data support for subsequent result analysis. The power module 220 is connected to the test host 210 and the test fixture 100 respectively, and is controlled by the test host 210. When the test host 210 issues a power supply instruction, the power module 220 converts the input electrical energy into a specific size of power supply voltage required by the test board. The power module 220 can be a fixed power supply and / or a programmable power supply, and is used to output a stable and accurate power supply voltage to ensure that the test board is in a stable working state during the test. The test module 230 is connected to the test host 210 and the test fixture 100 respectively. Under the control of the test host 210, the test module 230 can generate various test signals that meet the test requirements. These signals cover different electrical parameters, frequencies, waveforms, etc., to simulate various working conditions of the test board in actual use. At the same time, the test module 230 is also responsible for receiving the test data returned by the test board transmitted from the test fixture 100 and transmitting these data to the test host 210 for further analysis and processing.

[0035] In one embodiment, as Figure 3As shown, the test module 230 includes: a control board tester 231. The control board tester 231 is respectively connected to the test host 210 and the test fixture 100. The test host 210 is used to input test signals to the system control board through the control board tester 231 and the test fixture 100, and obtain the test data returned by the system control board according to the test signals.

[0036] Specifically, in this embodiment, the system control board is tested by the control board tester 231 provided in the test module 230. The control board tester 231 can accurately measure various electrical performances of the system control board, such as the measurement of basic parameters such as voltage, current, and resistance, and can also perform signal acquisition, analysis, and waveform monitoring, etc. The control board tester 231 can be communicatively connected to the test host 210 through a network cable and is controlled by the test host 210. The control board tester 231 is connected to the test fixture 100 through a wire, so as to be connected to the test points in the system control board. The test host 210 sends corresponding control instructions to the control board tester 231, so that the control board tester 231 outputs corresponding test signals, and the test signals are input into the system control board through the test fixture 100 for corresponding tests. When the system control board receives the test signals, it will process them according to its own circuit design and functional characteristics, and generate corresponding feedback signals. These feedback signals contain the performance information of the system control board, such as the response speed to the test signals, the accuracy of the processing results, etc. The system control board transmits these feedback signals back to the control board tester 231 through the test fixture 100. After receiving the returned test data, the control board tester 231 performs preliminary signal conditioning and data sorting, and then transmits the processed data to the test host 210.

[0037] In one embodiment, the test host 210 is connected to the system control board, and the test host 210 is used to input control signals to the system control board. Specifically, in this embodiment, when testing the system control board, the test host 210 is directly connected to the system control board to communicate with the system control board. For example, the test host 210 can be communicatively connected to the system control board through a network cable. The test host 210 can input control signals to the system control board to control the working state of the system control board, so as to complete the adjustment of the working state of the system control board, test the parameters of the system control board under multiple working states, and make the test of the system control board more perfect.

[0038] In one embodiment, such as Figure 4As shown, the test module 230 includes: a first programmable power supply 232 and a test tooling board 233. The first programmable power supply 232 is respectively connected to the test host 210 and the test tooling board 233. The test tooling board 233 is connected to the test fixture 100. The first programmable power supply 232 is used to input test signals to the input / output board through the test tooling board 233 and the test fixture 100, and obtain the test data returned by the input / output board according to the test signals.

[0039] Specifically, in this embodiment, the input / output board is tested by the first programmable power supply 232 and the test tooling board 233 provided in the test module 230. The first programmable power supply 232 has the functions of a signal generator and data acquisition, and is controlled by the test host 210. The first programmable power supply 232 can be communicatively connected to the test host 210 through a serial cable. According to the instructions sent by the test host 210, the first programmable power supply 232 can flexibly adjust the parameters of the output electrical signals, such as voltage, current, frequency, etc. These modulated electrical signals are the test signals used to test the input / output board. The test tooling board 233 is respectively connected to the first programmable power supply 232 and the test fixture 100, and is used to ensure that the test signals can be accurately applied to each test point on the input / output board through the test fixture 100. In some embodiments, the test tooling board 233 can also have corresponding circuit conversion and signal conditioning functions. For example, the test tooling board 233 will process the test signals, such as amplification, filtering, etc., to meet the input requirements of the input / output board. When the input / output board returns test data, the test tooling board 233 can also preliminarily process and convert the signals output by the input / output board, so that they can be smoothly transmitted back to the first programmable power supply 232 through the test fixture 100, and then transmitted to the test host 210. During the test process, the first programmable power supply 232 sends test signals to the input / output board through the test tooling board 233 and the test fixture 100 to simulate various electrical signal input situations of the input / output board during actual operation. At the same time, the first programmable power supply 232 also has a data acquisition function. When the input / output board returns corresponding data according to the received test signals, the first programmable power supply 232 can obtain these data and transmit them to the test host 210 for subsequent analysis.

[0040] In one embodiment, as Figure 5 shown, the test module 230 includes: a second programmable power supply 234 and an electronic load 235. The second programmable power supply 234 is respectively connected to the test host 210 and the test fixture 100. The electronic load 235 is respectively connected to the test host 210 and the test fixture 100. The test host 210 is used to input test signals to the charging board through the second programmable power supply 234 and the test fixture 100, and obtain the test data returned by the charging board according to the test signals. The test host 210 is used to control the load size of the charging board through the electronic load 235.

[0041] Specifically, in this embodiment, the charging board is tested by the second programmable power supply 234 and the electronic load 235 provided in the test module 230. The second programmable power supply 234 has the functions of a signal generator and data acquisition, and is controlled by the test host 210. The second programmable power supply 234 can be communicatively connected to the test host 210 through a serial cable. According to the instructions sent by the test host 210, the second programmable power supply 234 can flexibly generate test signals with various different parameters. These test signals are mainly output in the form of electrical energy, and their parameters such as voltage and current can be precisely adjusted according to different test scenarios and requirements. During the charging board test, the second programmable power supply 234 inputs these test signals into the input port of the charging board through the test fixture 100 to simulate various charging conditions that the charging board may encounter during actual use, such as charging modes with different voltages and currents, providing diverse test stimuli for comprehensively detecting the charging performance of the charging board. The electronic load 235 is connected to the output interface of the charging board through the test fixture 100. The electronic load 235 is mainly used to simulate the actual load situation of the charging board. The test host 210 can be communicatively connected to the electronic load 235 through a serial cable, and it can precisely control the working state of the electronic load 235, thereby adjusting the load size of the charging board. During the test process, the electronic load 235 can simulate various different load conditions from light load to heavy load according to the test requirements. In this way, the test host 210 can comprehensively detect key performance indicators such as the output ability, stability, and charging efficiency of the charging board under different load conditions with the help of the electronic load 235 to evaluate the applicability of the charging board in various actual application scenarios. When the charging board starts to be tested, the test host 210 first sends instructions to the second programmable power supply 234 according to the preset test plan to set the parameters of the test signals, such as voltage, current, charging time, etc. The second programmable power supply 234 generates corresponding test signals according to the instructions and transmits them to the charging board through the test fixture 100. After receiving the test signals, the charging board starts the charging operation and returns corresponding test data according to its own performance and working state. These data include information such as voltage changes, current fluctuations, and charging time during the charging process. These test data are fed back to the test host 210 through the test fixture 100 for the test host 210 to analyze and judge. At the same time, the test host 210 sends control instructions to the electronic load 235 according to the test plan to adjust the size of the electronic load 235 to simulate different load situations. The electronic load 235 changes its load characteristics according to the instructions, thereby affecting the working state of the charging board. The test host 210 continuously monitors the performance of the charging board under different loads, collects and analyzes the corresponding test data, and finally comprehensively evaluates whether the quality of the charging board meets the usage requirements.

[0042] In one embodiment, the test module 230 includes: a control board tester 231, a first programmable power supply 232, a test tooling board 233, a second programmable power supply 234, and an electronic load 235. During the testing of different types of test boards, by separately starting the corresponding functional units, the corresponding detection of the test board can be completed. The specific detection principle is the same as that in the above embodiment and will not be elaborated here.

[0043] In one embodiment, as Figure 6 shown, the present application also proposes a detection method for a liquid flow battery stack control box detection device, which is applied to the liquid flow battery stack control box detection device in the above embodiment. The detection method includes but is not limited to the following steps:

[0044] Step S310, connect the test board to the test fixture.

[0045] Specifically, when testing the test board, first select the corresponding adapter interface on the test fixture 100 according to the type of the test board (system control board, input / output board, charging board, etc.). Since the interface shapes, pin definitions, and functions of different test boards are different, only by correct matching can it be ensured that the test fixture 100 is accurately docked with the test board. The test fixture 100 has a high-precision positioning structure, and the test board is firmly fixed in a specific position through mechanical clamping, slot matching, etc., to ensure that the test board does not shift or loosen during the test process. After the connection is completed, the test pins or connecting wires on the test fixture 100 will be in reliable contact with the electrical contacts of the test board, thereby establishing a stable electrical connection path for the subsequent transmission of test signals and feedback of test data.

[0046] Step S320, configure test parameters in the test cabinet.

[0047] Specifically, the tester sets parameters on the operation interface of the test cabinet 200 (such as the user interaction interface of the test host 210) according to the model, specifications of the test board, and corresponding technical standards. These parameters cover multiple aspects. For example, for the system control board, they can include parameters such as the voltage range, frequency, waveform of the input signal; for the input / output board, they can include the type of input signal (digital signal or analog signal), level standard, output load conditions, etc.; for the charging board, they can include charging voltage, current limit, charging time, discharge cut-off voltage, etc. The test parameters determine the working conditions faced by the test board during the test process.

[0048] Step S330, detect the test board based on the test parameters to obtain test data.

[0049] Specifically, after the connection between the test board and the test fixture 100 is completed and the test parameters are configured, the test can be started. According to the configured test parameters, the test cabinet 200 generates corresponding test signals through the internal functional modules. These test signals are transmitted to the test board through the test fixture 100. After receiving the test signals, the test board responds and processes them according to its own circuit design and functional logic. During this process, the test board will generate various feedback information. For example, the processing results of the system control board for input signals, the input and output responses of the input and output board, the voltage and current changes of the charging board during charging and discharging, etc. These feedback information are transmitted back to the test cabinet 200 in reverse through the test fixture 100. The acquisition module inside the test cabinet 200 collects and digitally processes these feedback information in real time, converts them into test data that can be stored and analyzed, and stores them in the corresponding storage medium to provide the original basis for subsequent result analysis.

[0050] Step S340: Determine the test result based on the test data.

[0051] Specifically, after the test data is collected, the data analysis module in the test cabinet 200 will deeply analyze the test data according to the preset determination rules and standards. For example, for the system control board, if the processing result of a specific input signal is within the specified error range, it is determined that the relevant function is qualified; if the level, timing, etc. of the input and output signals of the input and output board meet the standard requirements, it is considered that the input and output function of the board is normal; if the charging efficiency, discharge capacity, voltage stability, etc. of the charging board reach the specified values, it is determined that the performance of the charging board is qualified. The data analysis module compares and judges the test data with these standards one by one, and finally generates a clear test result, which is presented to the operator in an intuitive form (such as display on the display screen, report output, etc.) to notify whether the test board passes the detection.

[0052] In one embodiment, in step S340, the step of determining the test result based on the test data includes: calculating the data error between the test data and the standard data, and when the data error is less than or equal to the preset threshold, determining the test result as passing the test; when the data error is greater than the preset threshold, determining the test result as not passing the test.

[0053] Specifically, after the detection of test boards (such as system control boards, input / output boards, charging boards, etc.) is completed, a large amount of test data will be obtained. These test data reflect the performance of the test boards when receiving various test signals. At the same time, according to the design requirements, industry standards, and actual usage scenarios of the test boards, a set of standard data is preset in advance. This standard data represents the performance indicators that the test boards should achieve under ideal conditions. To determine whether the actual performance of the test boards meets the requirements, it is necessary to calculate the difference between the test data and the standard data, that is, the data error. The calculation method will vary according to the different types of data. For numerical data, such as the charging voltage and current values in the charging board test, the calculation methods of absolute error or relative error are usually adopted. For other types of data, such as the timing data of the system control board processing signals, the data error may be determined by calculating the time difference, logical state difference, etc. The preset threshold is comprehensively determined according to factors such as the accuracy requirements of the test boards, the production process level, and the acceptable error range in actual use. It is used to judge whether the test boards are qualified. When the data error between the calculated test data and the standard data is less than or equal to the preset threshold, it indicates that the performance of the test boards in various test indicators is relatively close to the standard under ideal conditions, and its performance can meet the design and usage requirements. If the calculated data error is greater than the preset threshold, it indicates that there is a large deviation between the actual performance of the test boards and the standard requirements. This deviation may affect the normal operation of the test boards in the flow battery stack control box and even cause the entire system to malfunction.

[0054] Taking the charging board test as a specific example, if in multiple charging tests, the error between the actual charging voltage and the standard charging voltage is always within the preset threshold range, and the errors of other key indicators such as charging current and charging efficiency also meet the requirements, then it can be determined that the charging board passes the test. Taking the input / output board test as an example, if the level or timing error of the input / output signal exceeds the preset threshold, it may cause errors in data transmission and affect the communication function of the system. At this time, the test result will be determined as failed.

[0055] In one embodiment, in step S340, after the step of determining the test result based on the test data, the detection method further includes: displaying the test result in the user interaction interface. Specifically, when the test result (pass the test or fail the test) is determined based on the test data, the relevant test result data is transmitted from the data analysis module of the test cabinet 200 to the module responsible for the display function (the display screen of the test host 210). The data transmission can be achieved through the internal data bus or communication protocol to ensure the accuracy of data transmission. During the transmission process, the data can also go through some format conversion and encoding processes to make it adaptable to the display requirements of the user interaction interface. For example, converting the simple text of "pass" or "fail" into more prominent icons on the visual interface (such as a green tick for passing and a red cross for failing), or adding some auxiliary information, such as the test time, test board number, etc., so that the operator can understand the test situation more comprehensively.

[0056] In one embodiment, as Figure 7 shown, in step S340, after the step of determining the test result based on the test data, the detection method further includes:

[0057] Step S350, obtaining historical test data.

[0058] Specifically, during the continuous testing of the test board, a large amount of test data will be accumulated. These data are stored in a specific database or storage device to form historical test data. These historical test data include the test data of multiple test boards (system control board, input / output board, charging board, etc.). Each test data includes the detailed parameters during the test and the corresponding test result (pass the test or fail the test). When it is necessary to analyze them, the historical test data is obtained first.

[0059] Step S360, determining statistical data based on the historical test data.

[0060] Specifically, after obtaining the historical test data, data analysis and statistics are performed on the historical test data to determine the corresponding statistical data, which includes at least one of the total number of tests, the number of qualified products, and the number of unqualified products. The total number of tests is the result obtained by counting all the test records in the historical test data, which reflects the total number of times the test board has been tested up to the present. A total number of tests can be set for different types of test boards. The number of qualified products is the quantity selected from the historical test data with the test result of "passed the test", which directly reflects the number of test boards that meet the quality standards. A number of qualified products can be set for different types of test boards. The number of unqualified products is the quantity selected from the historical test data with the test result of "failed the test", which directly reflects the number of test boards that do not meet the quality standards. A number of unqualified products can be set for different types of test boards. By this means, the test results of the test board can be analyzed and statistically presented intuitively, so as to guide the optimization of product quality.

[0061] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "specific examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0063] The above-described embodiments only represent several implementation manners of the present application. The descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A flow battery stack control box detection device, characterized in that: include: A test fixture, the test fixture is used to connect a test board, the test board includes: at least one of a system control board, an input and output board, and a charging board; A test cabinet, wherein the test cabinet is connected to the test fixture, the test cabinet is used to input a test signal to the test board through the test fixture, and obtain test data returned by the test board according to the test signal, and the test cabinet is used to determine a test result according to the test data.

2. The flow battery stack control box detection device according to claim 1, characterized in that: The test cabinet includes: a test host, a power module and a test module, the test host is connected to the power module, the test fixture is connected to the power module, and the test host is used to input the power supply voltage to the test board through the power module and the test fixture; the test host is connected to the test module, the test fixture is connected to the test module, and the test host is used to input the test signal to the test board through the test module and the test fixture, and obtain the test data returned by the test board according to the test signal.

3. The flow battery stack control box detection device according to claim 2, characterized in that: The test module includes: a control board tester, which is connected to the test host and the test fixture respectively, and the test host is used to input the test signal to the system control board through the control board tester and the test fixture, and obtain the test data returned by the system control board according to the test signal.

4. The flow battery stack control box detection device according to claim 3, characterized in that: The test host is connected to the system control board, and the test host is used to input a control signal to the system control board.

5. The flow battery stack control box detection device according to claim 2, characterized in that: The test module includes: a first programmable power supply and a test fixture board, the first programmable power supply is connected to the test host and the test fixture board respectively, the test fixture board is connected to the test fixture, and the first programmable power supply is used to input the test signal to the input-output board through the test fixture board and the test fixture, and obtain the test data returned by the input-output board according to the test signal.

6. The flow battery stack control box detection device according to claim 2, characterized in that: The test module includes: a second programmable power supply and an electronic load, the second programmable power supply is respectively connected to the test host and the test fixture, the electronic load is respectively connected to the test host and the test fixture, the test host is used to input the test signal to the charging board through the second programmable power supply and the test fixture, and obtain the test data returned by the charging board according to the test signal, and the test host is used to control the load size of the charging board through the electronic load.

7. A detection method for a flow battery stack control box detection device, characterized in that: Applied to the flow battery stack control box detection device according to any one of claims 1 to 6, the method comprises: Connect the test board to the test fixture; Configure test parameters in the test cabinet; Detecting the test board based on the test parameters to obtain test data; A test result is determined based on the test data.

8. The detection method of the flow battery stack control box detection device according to claim 7, characterized in that: The step of determining the test result based on the test data comprises: A data error between the test data and the standard data is calculated, and when the data error is less than or equal to a preset threshold, the test result is determined as a passed test; when the data error is greater than the preset threshold, the test result is determined as a failed test.

9. The detection method of the flow battery stack control box detection device according to claim 7, characterized in that: After the step of determining the test result based on the test data, the method further comprises: The test results are displayed in a user interaction interface.

10. The detection method of the flow battery stack control box detection device according to claim 7, characterized in that: After the step of determining the test result based on the test data, the method further comprises: Acquire historical test data; wherein the historical test data includes multiple test results; Statistical data is determined based on the historical test data; wherein the statistical data includes at least one of the total number of tests, the number of good products, and the number of defective products.

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