Withstand voltage test method

Abstract

The invention provides a withstand voltage test method, and belongs to the field of electrical safety detection, the method is realized through a withstand voltage test system, and the withstand voltage test system comprises a first withstand voltage test device and a second withstand voltage test device; the withstand voltage test method comprises the following steps: obtaining a target insulation grade, and selecting a first withstand voltage test device or a second withstand voltage test device as a target withstand voltage test device according to the target insulation grade; electrically connecting a to-be-tested product with the target voltage withstanding test equipment, wherein the target voltage withstanding test equipment performs voltage withstanding test on the to-be-tested product according to preset voltage withstanding test parameters; and obtaining leakage current data of the to-be-tested product in a withstand voltage test process, and generating withstand voltage test data according to the leakage current data. Through the method provided by the invention, the insulation performance of the product to be tested can be rapidly measured, and the test efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of electrical safety testing technology, and more specifically, to a withstand voltage test method. Background Technology

[0002] Existing withstand voltage testing equipment can generally be categorized into traditional power frequency withstand voltage testing equipment, DC withstand voltage testing equipment, variable frequency series resonant testing equipment, ultra-low frequency withstand voltage testing equipment, and manually recorded testing equipment. However, these devices have limitations in testing efficiency, safety, compatibility, and traceability. For example, these traditional testing devices have long testing cycles, cannot meet the needs of batch testing, and have low testing efficiency; high-voltage operation lacks intelligent protection mechanisms, posing safety risks; test parameters are usually set to fixed values, making it difficult to adapt to diverse testing scenarios and resulting in poor compatibility. Furthermore, data recording for these devices relies on manual methods, affecting traceability. Summary of the Invention

[0003] To address the limitations of existing withstand voltage testing equipment in terms of testing efficiency, safety, compatibility, and traceability, this invention provides a withstand voltage testing method. This method can quickly measure various insulation properties of the product under test, greatly improving testing efficiency.

[0004] To achieve the above objectives, the present invention provides a withstand voltage testing method applied to withstand voltage testing. The withstand voltage testing system includes a first withstand voltage testing device and a second withstand voltage testing device. The withstand voltage testing method includes the following steps: obtaining a target insulation level; selecting either the first or second withstand voltage testing device as the target withstand voltage testing device based on the target insulation level; electrically connecting the product under test (DUT) to the target withstand voltage testing device; the target withstand voltage testing device performing a withstand voltage test on the DUT according to pre-set withstand voltage testing parameters; obtaining leakage current data of the DUT during the withstand voltage test; and generating withstand voltage test data based on the leakage current data.

[0005] In an exemplary embodiment of the present invention, the withstand voltage test system may further include a host computer, and obtaining the target insulation level may include: obtaining data input by the user on the host computer, and confirming the target insulation level based on the data.

[0006] In an exemplary embodiment of the present invention, the target insulation level may include conventional insulation performance and reinforced insulation performance; the step of selecting a first withstand voltage test device or a second withstand voltage test device as the target withstand voltage test device according to the target insulation level may include: when the target insulation level is conventional insulation performance, selecting the first withstand voltage test device as the target withstand voltage test device; when the target insulation level is reinforced insulation performance, selecting the second withstand voltage test device as the target withstand voltage test device.

[0007] In an exemplary embodiment of the present invention, the withstand voltage test parameters may include a target test voltage and a target test time; the target test voltage corresponding to the enhanced insulation performance is greater than the target test voltage corresponding to the conventional insulation performance, and the target test time corresponding to the enhanced insulation performance is equal to the target test time corresponding to the conventional insulation performance.

[0008] In an exemplary embodiment of the present invention, the step of electrically connecting the product under test (TBT) to the target withstand voltage test equipment may include: when the target insulation level is conventional insulation performance, electrically connecting the power input port of the TBT to the target withstand voltage test equipment; when the target insulation level is reinforced insulation performance, electrically connecting the charging electrode of the TBT to the target withstand voltage test equipment.

[0009] In an exemplary embodiment of the present invention, the first withstand voltage test device and the second withstand voltage test device are provided with a data acquisition module. The acquisition of leakage current data of the product under test may include: when the target insulation level is conventional insulation performance, the leakage current data between the power input port and the casing of the product under test is acquired in real time through the data acquisition module during the withstand voltage test; when the target insulation level is reinforced insulation performance, the leakage current data between the charging electrode and the internal circuit of the product under test is acquired in real time through the data acquisition module during the withstand voltage test.

[0010] In an exemplary embodiment of the present invention, generating a withstand voltage test result based on leakage current data may include: after the product under test has completed the withstand voltage test, determining whether the measured value of the leakage current of the product under test exceeds the leakage current limit corresponding to the target insulation class; when the measured value of the leakage current does not exceed the leakage current limit corresponding to the target insulation class, generating a qualified withstand voltage test result for the product; when the measured value of the leakage current exceeds the leakage current limit corresponding to the target insulation class, generating an unqualified withstand voltage test result for the product.

[0011] In an exemplary embodiment of the present invention, the method may further include: during the withstand voltage test of the product under test, determining in real time whether the leakage current data of the product under test exceeds the leakage current limit; when the leakage current data of the product under test exceeds the leakage current limit, controlling the target withstand voltage test equipment to stop the test.

[0012] In an exemplary embodiment of the present invention, the withstand voltage test method may further include: after electrically connecting the product under test to the target withstand voltage test equipment, scanning and recording the product under test, and uploading the scanned product data to the host computer.

[0013] In an exemplary embodiment of the present invention, the pressure resistance test method may further include: acquiring the pressure resistance test results and the product data through a host computer, and generating a pressure resistance test report based on the pressure resistance test results and the product data.

[0014] The present invention has at least the following technical effects through the technical solution provided by the present invention: (1) On the one hand, this invention selects the appropriate target withstand voltage test equipment according to the target insulation performance input by the user, and controls the target withstand voltage test equipment to apply voltage to the product under test according to the set test parameters through the host computer, thereby realizing the automated test process and improving the test efficiency. On the other hand, by redesigning the electrical architecture and functional modules of the withstand voltage test equipment, it can not only have higher voltage stability, but also immediately cut off the high voltage output when an abnormal situation is detected, thereby further protecting the personal safety of the test personnel. (2) The pressure resistance test system provided by the present invention has a simple structure, is easy to use, and is suitable for widespread application.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic flowchart of the withstand voltage test method provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the pressure resistance testing system provided in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures 1-Rack, 2-First withstand voltage test equipment, 3-Second withstand voltage test equipment, 4-Display screen, 5-Server, 6-Universal interface cable, 7-Metal probe. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0020] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of components in relation to the directions shown in the accompanying drawings or in relation to vertical, perpendicular, or gravitational directions. Terms such as "first" and "second" are used merely for ease of description and distinction and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a direct connection or an indirect connection; they can refer to a wired connection or a wireless connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This invention provides a withstand voltage testing method, which is implemented through a withstand voltage testing system. The withstand voltage testing system includes a first withstand voltage testing device and a second withstand voltage testing device, each with a different output voltage, and can be used to test the withstand voltage performance of the product under test in different testing scenarios. Based on this, as... Figure 1 As shown, a pressure resistance test method includes the following steps: Step S101: Obtain the target insulation level, and select either the first withstand voltage test equipment or the second withstand voltage test equipment as the target withstand voltage test equipment according to the target insulation level. Step S102: Electrically connect the product to be tested to the target withstand voltage test equipment, and the target withstand voltage test equipment performs a withstand voltage test on the product to be tested according to the preset withstand voltage test parameters; Step S103: Obtain leakage current data of the product under test during the withstand voltage test, and generate withstand voltage test data based on the leakage current data.

[0024] Furthermore, in one possible implementation, the withstand voltage test system further includes a host computer, and obtaining the target insulation level includes: acquiring data input by the user on the host computer, and confirming the target insulation level based on the data. For example, the user can select the insulation performance information to be tested from a drop-down list provided in the host computer software interface, and the target insulation level can be further confirmed based on the insulation performance information.

[0025] Furthermore, in one possible implementation, the target insulation level may include conventional insulation performance and reinforced insulation performance. Based on this, the process of selecting a first withstand voltage test device or a second withstand voltage test device as the target withstand voltage test device according to the target insulation level may include, but is not limited to, the following sub-steps S1011 to S1012: Sub-step S1011: When the target insulation level is conventional insulation performance, select the first withstand voltage test equipment as the target withstand voltage test equipment; Sub-step S1012: When the target insulation level is enhanced insulation performance, select the second withstand voltage test equipment as the target withstand voltage test equipment.

[0026] In other words, in the withstand voltage testing system, the first withstand voltage testing device is configured to output a first test voltage to the product under test (DUT) according to the test parameters output by the host computer, in order to perform a withstand voltage test on the conventional insulation performance of the DUT. The second withstand voltage testing device is configured to output a second test voltage to the DUT according to the test parameters output by the host computer, in order to perform a withstand voltage test on the enhanced insulation performance of the DUT. The second test voltage output by the second withstand voltage testing device is greater than the first test voltage output by the first withstand voltage testing device.

[0027] Furthermore, in one possible implementation, the first withstand voltage test equipment is equipped with a universal interface cable (such as a high-voltage power cable) for connecting to the power input port of the product under test; the second withstand voltage test equipment is equipped with a metal probe for connecting to the charging electrode of the product under test. Based on this, the process of electrically connecting the product under test to the target withstand voltage test equipment may include, but is not limited to, the following sub-steps S1021-S1022: Sub-step S1021: When the target insulation level is conventional insulation performance, the power input port of the product under test is electrically connected to the universal interface cable on the target withstand voltage test equipment (i.e., the first withstand voltage test equipment). Sub-step S1022: When the target insulation level is enhanced insulation performance, the charging electrode of the product under test is electrically connected to the metal probe of the target withstand voltage test equipment (i.e., the second withstand voltage test equipment).

[0028] It should be noted that the test sites for conventional insulation performance are usually between the live wire (L) and neutral wire (N) of the power input of the product under test and the ground wire (E) or between the accessible metal casing; the test sites for enhanced insulation performance are usually between the internal high-voltage circuit (such as DC charging circuit) of the product under test and the casing, or between the exposed metal parts accessible to the user (such as metal charging electrodes) and the internal high-voltage circuit.

[0029] Furthermore, in one possible implementation, after electrically connecting the product under test (DUT) to the target withstand voltage testing equipment, a withstand voltage test can be performed on the DUT according to the withstand voltage test parameters set by the user in the host computer. The withstand voltage test parameters set in the host computer include a target test voltage and a target test time, wherein the target test voltage corresponding to the enhanced insulation performance is greater than the target test voltage corresponding to the conventional insulation performance, and the target test time corresponding to the enhanced insulation performance is equal to the target test time corresponding to the conventional insulation performance.

[0030] For example, in the withstand voltage performance test of home appliances, the first withstand voltage test equipment typically outputs an AC voltage of 1250~1500V, and the test time can be set to within 10 seconds (e.g., 2~5 seconds) to simulate daily overvoltage (e.g., surges) and verify whether the basic insulation structure of the product is intact, preventing users from being electrocuted. The second withstand voltage test equipment typically outputs an AC voltage of 2500~3000V, and the test time can be set to within 10 seconds (e.g., 2~5 seconds) to simulate extreme abnormal conditions (e.g., failure of internal high-voltage components) and verify the insulation reliability of high-risk paths, preventing fatal breakdowns.

[0031] It should be noted that the target withstand voltage test equipment adjusts the AC voltage during the test to change the output voltage value at a set growth rate, such as adjusting from 1250V to a growth rate of 50V per second or from 2500V to a growth rate of 50V per second. This can further detect the withstand voltage test performance of the product under test under varying voltage conditions.

[0032] The withstand voltage test parameters are changed according to the leakage current data of the product under test, and the withstand voltage test is performed on the product under test according to the changed withstand voltage test parameters.

[0033] Furthermore, in one possible implementation, the first withstand voltage test device and the second withstand voltage test device are equipped with a data acquisition module, and the process of acquiring the leakage current data of the product under test may include, but is not limited to, the following sub-steps S10311 to S10311: Sub-step S10311: When the target insulation level is conventional insulation performance, the leakage current data between the power input port and the casing of the product under test is collected in real time through the data acquisition module in the first withstand voltage test equipment during the withstand voltage test. In sub-step S10312, when the target insulation level is enhanced insulation performance, the leakage current data between the charging electrode and the internal circuit of the product under test is collected in real time through the data acquisition module in the second withstand voltage test equipment during the withstand voltage test.

[0034] Furthermore, in one possible implementation, the process of generating withstand voltage test data based on leakage current data may include, but is not limited to, the following sub-steps S10321 to S10323: Sub-step S10321: After the withstand voltage test is completed on the product under test, determine whether the measured value of the leakage current of the product under test exceeds the leakage current limit corresponding to the target insulation level. Sub-step S10322: When the measured value of the leakage current does not exceed the leakage current limit corresponding to the target insulation level, a qualified withstand voltage test result is generated for the product. Sub-step S10323: When the measured value of the leakage current exceeds the leakage current limit corresponding to the target insulation level, a withstand voltage test result indicating that the product is unqualified is generated.

[0035] For example, the leakage current limit for standard insulation performance can be set to 0.5~5mA. If the measured leakage current exceeds 5mA, the product is judged as unqualified; if the measured leakage current is within 0.5~5mA, it is judged as qualified. Similarly, the leakage current limit for reinforced insulation performance can be set to 0.3~5mA. If the measured leakage current exceeds 5mA, the product is judged as unqualified; if the measured leakage current is within 0.3~5mA, it is judged as qualified.

[0036] It should be noted that in some embodiments, the target withstand voltage testing equipment changes the withstand voltage test parameters based on the leakage current data of the product under test (DUT) during the test. Furthermore, it adjusts the AC voltage based on the leakage current data of the DUT. Specifically, it monitors the leakage current value in real time, calculating the change in the leakage current value of the DUT within t seconds at intervals of t seconds, where 1 ≤ t ≤ 3. Specifically, it calculates the difference w between the maximum and minimum leakage current values ​​within t seconds. If w ≤ 1, the target withstand voltage testing equipment increases the output voltage value by a set increment, such as 50V, 100V, 150V, etc., without limitation. For example, within the time period t1~t2, where 1 ≤ t2 - t1 ≤ 3, if the leakage current value of the DUT remains between a and bmA, and ba ≤ 1, the target withstand voltage testing equipment increases the initial 2500V to 2600V output by a set increment, and then measures the leakage current data of the DUT in real time. By changing the output voltage value, the withstand voltage stability of the DUT under varying voltage conditions can be tested.

[0037] In another embodiment, the test time is adjusted based on the leakage current data of the product under test. Specifically, the leakage current value is monitored in real time, and the change in leakage current value of the product under test within t seconds is calculated every t seconds, where 1 ≤ t ≤ 3. Specifically, the difference w between the maximum and minimum leakage current values ​​within t seconds is calculated. If w ≥ 3, the target withstand voltage test equipment increases the test time by a set increment, such as 2s, 3s, 4s, 5s, 6s, etc., without limitation. For example, within the time period t1~t2, where 1 ≤ t2 - t1 ≤ 3, if the leakage current value of the product under test remains between a and bmA, and ba ≥ 3, the target withstand voltage test equipment increases the initial 10s test time to 14s by a set increment, and then measures the leakage current data of the product under test in real time. By changing the output voltage value, the withstand voltage stability of the product under test under varying voltages can be tested.

[0038] Furthermore, in one possible implementation, the first withstand voltage testing device and the second withstand voltage testing device are equipped with a safety protection module. Based on this, the withstand voltage testing method may further include: during the withstand voltage test of the product under test, determining in real time whether the leakage current data of the product under test exceeds the leakage current limit; when the leakage current data of the product under test exceeds the leakage current limit, controlling the target withstand voltage testing device to terminate the test.

[0039] It should be noted that the leakage current limit should be greater than the leakage current limit. For example, the leakage current limit can be set to 8mA.

[0040] Furthermore, in one possible implementation, the withstand voltage testing system may also include a barcode scanner, which is connected to a host computer via a serial port. By scanning the unique identification code (such as an SN code, MAC address QR code, product barcode, etc.) on the product under test with the barcode scanner, automatic identification and binding of product information can be achieved. Based on this, the withstand voltage testing method further includes: after electrically connecting the product under test to the target withstand voltage testing equipment, scanning and recording the barcode on the product under test, and uploading the scanned product data to the host computer.

[0041] Furthermore, in one possible implementation, the pressure resistance test method may further include step S104: acquiring the pressure resistance test data and the product data through a host computer, and generating a pressure resistance test report based on the pressure resistance test data and the product data.

[0042] It should be noted that the voltage values ​​such as "1500V" and "3000V" and the current limits such as "0.5mA" and "0.3mA" mentioned in this invention are exemplary parameters set according to relevant product safety standards (such as GB 4706.1) and specific product specifications. In actual applications, they can be adjusted according to specific standard requirements and product design.

[0043] To better understand the exemplary embodiments of the present invention described above, they will be further described below in conjunction with specific examples and accompanying drawings.

[0044] like Figure 2 As shown, a withstand voltage testing system includes a rack 1, a first withstand voltage testing device 2, a second withstand voltage testing device 3, a display screen 4, and a server 5. The rack 1 consists of a cabinet, a testing platform, and a support. The display screen 4 is mounted on the support of the rack 1 and is used to display test data and set test parameters. The server 5 is installed inside the cabinet of the rack 1 and is used to process test data and automatically generate a complete report including timestamps, test parameters, and result judgments. The first withstand voltage testing device 2 and the second withstand voltage testing device 3 are installed on the testing platform of the rack 1 and are used to provide corresponding voltages according to different test parameters to perform withstand voltage tests on the insulation performance of the product under test. Furthermore, the first withstand voltage testing device 2 is equipped with a universal interface cable 6, which is used to connect to the power input port of the product under test. The second withstand voltage testing device 3 is equipped with a metal probe 7, which is used to connect to the charging electrode of the product under test.

[0045] The first withstand voltage test device 2 may include a first withstand voltage test body, a first control module, a first voltage generating module, a first data communication module, a first safety protection module, and a first data acquisition module. The first control module, the first voltage generating module, and the first data communication module are all installed within the first withstand voltage test body. The first withstand voltage test body is provided with a high-voltage output port and a low-voltage input port, and the high-voltage output port includes an AC high-voltage output port and / or a DC high-voltage output port. One end of a universal interface cable 6 is connected to the high-voltage output port, and the other end of the universal interface cable 6 is connected to the power input port of the product under test. The first voltage generating module and the first data communication module are electrically connected to the first control module, and the first data communication module is communicatively connected to a host computer. The first control module contains a control circuit that controls the output voltage of the first voltage generating module, and can control the first voltage generating module to generate a first test voltage (e.g., an adjustable AC high voltage of 1250~1500V) within the test time according to the test parameters (such as test voltage and test time) output by the host computer. The first data acquisition module is communicatively connected to both the first safety protection module and the first data communication module, and is used to collect leakage current data between the power input port and the casing of the product under test (DUT). The first safety protection module is connected to the first voltage generation module, and includes a control circuit that disconnects the first voltage generation module from the DUT. Thus, when the first safety protection module detects an abnormal current output from the first voltage generation module (such as leakage current exceeding the leakage current limit), it can automatically cut off the high-voltage output, ensuring the safety of the testing personnel.

[0046] Similarly, the second withstand voltage test device 3 may include a second withstand voltage test body, a second control module, a second voltage generation module, a second data communication module, a second safety protection module, and a second data acquisition module. The second control module, the second voltage generation module, and the second data communication module are all installed within the second withstand voltage test body. The second withstand voltage test body is equipped with a metal probe for connecting to the product under test (DUT). This metal probe transmits the test voltage by contacting the exposed metal parts (such as metal charging electrodes) of the DUT. The second voltage generation module and the second data communication module are electrically connected to the second control module, and the second data communication module is communicatively connected to a host computer. The second control module contains a control circuit that controls the output voltage of the second voltage generation module. Based on the test parameters (such as test voltage and test time) output by the host computer, it controls the first voltage generation module to generate a second test voltage (such as an adjustable AC high voltage of 2500~3000V) within the test time. The second data acquisition module is communicatively connected to both the second safety protection module and the second data communication module, and is used to collect leakage current data between the charging electrodes and the internal circuitry of the DUT. The second safety protection module is connected to the second voltage generating module, and the second safety protection module contains a control circuit that disconnects the second voltage generating module from the product under test. Thus, when the second safety protection module detects an abnormal current output from the second voltage generating module (such as leakage current exceeding the leakage current limit), it can automatically cut off the high-voltage output, ensuring the personal safety of the testing personnel.

[0047] It should be noted that the working principle of the aforementioned first withstand voltage test equipment is as follows: The first voltage generation module generates the required test voltage according to the test parameters set by the host computer (such as test voltage 1250~1500V AC, test time 2~5s) and applies it between the live wire and ground wire of the power input port of the product under test. The entire test process is automatically completed by the first control module, and the first data acquisition module collects the leakage current data between the power input port of the product under test and the casing in real time. After the test, the first data communication module sends the collected leakage current data to the host computer, and the host computer automatically generates a complete test report including timestamps, test parameters, and result judgments. In addition, during the test, the first safety protection module monitors the leakage current changes in real time. When the arc detection detects an abnormality, the test is immediately terminated and the power is cut off.

[0048] The working principle of the aforementioned second withstand voltage testing equipment is as follows: The second voltage generating module generates the required test voltage according to the test parameters set by the host computer (such as test voltage 2500~3000V AC, test time 2~5s) and applies it to the charging electrode of the product under test. The entire test process is automatically completed by the second control module, and the second data acquisition module collects the leakage current data between the charging electrode and the internal circuit of the product under test in real time. After the test, the second data communication module sends the collected leakage current data to the host computer, and the host computer automatically generates a complete test report including timestamps, test parameters, and result judgments. In addition, during the test, the second safety protection module monitors the leakage current changes in real time. When the arc detection detects an abnormality, the test is immediately terminated and the power is cut off.

[0049] The operation of the above-mentioned withstand voltage testing system is very simple. Taking the withstand voltage testing station of the robot vacuum cleaner base station as an example, the specific implementation steps are as follows: Step 1: The operator selects or scans a code through the host computer interface to automatically determine the target insulation level for this test. The target insulation level includes the conventional insulation level and the reinforced insulation level. Step 2: Based on the target insulation level, the system automatically activates the corresponding first or second withstand voltage test equipment and calls up the standard test parameters (such as test voltage, test time, upper / lower limit of test current, etc.) stored in the host computer. Step 3: The operator uses a barcode scanner to scan the unique identification code (such as the SN code) on the base station under test. The host computer records this information and can send information such as the product model to the test equipment to trigger preset parameters or perform automatic interface identification. Step 4: After the operator connects the first or second withstand voltage test equipment to the base station under test, click the "Start Test" button on the host computer. The corresponding withstand voltage test equipment will automatically increase the voltage and start timing according to the preset withstand voltage test parameters. Step 5: The data acquisition module monitors the leakage current in real time, and the safety protection module monitors the entire process. If the current instantaneously exceeds the upper limit of the leakage current (e.g., 8mA) or an arc is detected, the equipment immediately cuts off the high voltage output of the first or second withstand voltage test equipment and reports an error. Step 6: After the test time is up, the first or second withstand voltage test device automatically reduces the voltage. The host computer compares the measured leakage current value during the entire test process with the preset leakage current limit. If the current is within the qualified range throughout the process, it is judged as a good product; if it exceeds the limit, it is judged as a defective product. Combined with information such as product model, the host computer automatically generates a complete test report containing timestamps, test parameters, and result judgments, realizing full traceability of the test process.

[0050] Specifically, if a withstand voltage test is required to assess the general insulation performance of a robotic vacuum cleaner base station, firstly, test parameters such as test voltage, test duration, and leakage current limit must be set in the host computer for the first withstand voltage test device, and a universal interface cable (such as a high-voltage power cord) must be led out from the first withstand voltage test device. Then, the robotic vacuum cleaner base station is placed on the test platform of the rack, and the power cord is connected to the robotic vacuum cleaner base station. The first withstand voltage test device will automatically apply an AC high voltage of 1500±3%V to the robotic vacuum cleaner base station and monitor the leakage current data within 2 seconds. If the leakage current does not exceed the leakage current limit (such as 0.5~5mA), it is judged to be a good product. Finally, after the test is completed, the power cord can be unplugged. The test results will be displayed on the host computer screen and uploaded to the server through the MES system. The test data record will be automatically saved locally.

[0051] To perform a withstand voltage test on the enhanced insulation performance of the robot vacuum cleaner base station, firstly, the test parameters such as test voltage, test duration, and leakage current limit must be set in the host computer for the second withstand voltage test equipment. Then, place the robot vacuum cleaner base station on the test platform of the rack. After the metal probe on the second withstand voltage test equipment contacts the exposed metal electrode of the robot vacuum cleaner base station, the second withstand voltage test equipment will automatically apply a high AC voltage of 3000±3% V to the robot vacuum cleaner base station and monitor the leakage current data within 2 seconds. If the leakage current does not exceed the leakage current limit (e.g., 0.3~5mA), it is judged as a good product. Finally, after the test is completed, control the metal probe on the second withstand voltage test equipment to separate from the exposed metal electrode of the robot vacuum cleaner base station. The test results will be displayed on the host computer screen and uploaded to the server through the MES system. The test data record will be automatically saved locally.

[0052] Compared to existing traditional withstand voltage testing equipment, the withstand voltage testing system provided by this invention has the following advantages: (1) Operators only need to connect the power supply, withstand voltage test equipment, and host computer, and set two parameters (test voltage and test time), which reduces the difficulty of equipment setup and debugging; (2) By controlling the first or second withstand voltage test equipment through the host computer to generate the required test voltage according to the set parameters and apply it to the product under test, the automated test process is realized, the test operation is simplified, and the test time for a base station is less than 10 seconds, which greatly improves the test efficiency. (3) By uploading the test results to the server, the traceability of the product is enhanced; (4) Using universal interface cables, one device can be compatible with dozens of different base stations. When switching the test product, there is no need to re-debug the test equipment, and the compatibility has been greatly improved. (5) The safety protection module set in the withstand pressure test equipment further protects the personal safety of the operators.

[0053] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0055] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A method for withstand voltage testing, characterized in that, Applied to a withstand pressure testing system, the withstand pressure testing system including a first withstand pressure testing device and a second withstand pressure testing device; The pressure resistance test method includes the following steps: Obtain the target insulation level, and select either the first or second withstand voltage test equipment as the target withstand voltage test equipment based on the target insulation level; The product under test is electrically connected to the target withstand voltage test equipment, and the target withstand voltage test equipment performs a withstand voltage test on the product under test according to the preset withstand voltage test parameters. The leakage current data of the product under test during the withstand voltage test is obtained, and withstand voltage test data is generated based on the leakage current data.

2. The withstand voltage test method according to claim 1, characterized in that, The withstand voltage test system also includes a host computer, and obtaining the target insulation level includes: obtaining data input by the user on the host computer, and confirming the target insulation level based on the data.

3. The withstand voltage test method according to claim 2, characterized in that, The target insulation class includes conventional insulation performance and reinforced insulation performance; the selection of a first withstand voltage test device or a second withstand voltage test device as the target withstand voltage test device according to the target insulation class includes: When the target insulation class is conventional insulation performance, the first withstand voltage test equipment shall be selected as the target withstand voltage test equipment. When the target insulation class is enhanced insulation performance, the second withstand voltage test equipment is selected as the target withstand voltage test equipment.

4. The withstand voltage test method according to claim 3, characterized in that, The withstand voltage test parameters include the target test voltage and the target test time; the target test voltage corresponding to the enhanced insulation performance is greater than the target test voltage corresponding to the conventional insulation performance, and the target test time corresponding to the enhanced insulation performance is equal to the target test time corresponding to the conventional insulation performance.

5. The withstand voltage test method according to claim 3, characterized in that, The step of electrically connecting the product under test to the target withstand voltage testing equipment includes: When the target insulation class is conventional insulation performance, connect the power input port of the product under test to the target withstand voltage test equipment electrically. When the target insulation class is reinforced insulation performance, the charging electrode of the product under test is electrically connected to the target withstand voltage test equipment.

6. The withstand voltage test method according to claim 5, characterized in that, Both the first and second withstand voltage testing devices are equipped with data acquisition modules. The acquisition of leakage current data of the product under test includes: When the target insulation level is conventional insulation performance, the leakage current data between the power input port and the casing of the product under test is collected in real time through the data acquisition module during the withstand voltage test. When the target insulation level is enhanced insulation performance, the leakage current data between the charging electrode and the internal circuit of the product under test is collected in real time through the data acquisition module during the withstand voltage test.

7. The withstand voltage test method according to claim 1, characterized in that, The process of generating withstand voltage test data based on leakage current data includes: After the withstand voltage test is completed on the product under test, determine whether the measured leakage current value of the product under test exceeds the leakage current limit corresponding to the target insulation class. When the measured leakage current does not exceed the leakage current limit corresponding to the target insulation class, a qualified withstand voltage test result is generated for the product. When the measured leakage current exceeds the leakage current limit corresponding to the target insulation class, a withstand voltage test result indicating that the product is unqualified is generated.

8. The withstand voltage test method according to claim 1, characterized in that, The pressure resistance test method further includes: During the withstand voltage test of the product under test, it is determined in real time whether the leakage current data of the product under test exceeds the leakage current limit. When the leakage current data of the product under test exceeds the leakage current limit, the control target withstand voltage test equipment terminates the test.

9. The pressure resistance test method according to any one of claims 1 to 8, characterized in that, The withstand voltage test method further includes: after electrically connecting the product to be tested to the target withstand voltage test equipment, scanning and recording the product data, and uploading the scanned product data to the host computer.

10. The withstand voltage test method according to claim 9, characterized in that, The pressure resistance test method further includes: The host computer acquires the pressure resistance test data and the product data, and generates a pressure resistance test report based on the pressure resistance test data and the product data.

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