Motor test wire body assembly

Abstract

The utility model relates to a motor test line body assembly. The assembly comprises a conveying line body main body; the performance test equipment is used for testing the operation performance of the to-be-tested motor; the noise testing equipment is used for testing the noise state of the motor to be tested; the appearance testing equipment is used for detecting the appearance state of the to-be-tested motor; and the control module is used for judging the qualified state of the to-be-detected motor according to the detected operation performance, noise state and appearance state. The main body of the conveying line body is integrated with the high-precision servo positioning module, the multi-channel electrical parameter analyzer is integrated through the performance testing equipment, performance parameters such as resistance, counter electromotive force and inductance of the motor are accurately collected, micron-level detection and abnormal sound frequency spectrum analysis of the motor under specific working conditions can be achieved through the noise testing equipment, and the detection accuracy is improved. Surface defect identification is carried out through the appearance testing equipment, multi-dimensional data fusion analysis can be carried out through the control module to realize quality judgment, the qualification of the motor production process can be effectively monitored, and the qualification rate of the motor is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, and in particular to a motor testing line assembly. Background Technology

[0002] As the core actuator for electromechanical energy conversion, the electric motor provides power to key functional modules in HVAC systems, such as compressor driving, forced convection in outdoor heat exchangers, and airflow organization in indoor duct systems. In recent years, with the iterative upgrading of energy efficiency standards in the HVAC industry and the exponential growth of the market, complaints about motor products in customer quality feedback have been steadily increasing, with performance and noise abnormalities caused by electromagnetic torque fluctuations being particularly prominent. Currently, the labor-intensive semi-automated inspection lines commonly used in the industry have significant technical bottlenecks: First, manual visual inspection suffers from subjective judgment bias and visual fatigue leading to a decrease in detection rate, resulting in the risk of missing key quality characteristics (CTQ) such as rotor dynamic balance errors and winding insulation defects; second, existing equipment has gaps in judging the accuracy and conformity of operations, particularly lacking the ability to analyze existing data sets. These systemic defects directly cause the defect rate to rise, leading to a continuous deterioration in cost of quality (COQ). Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a motor testing system that can automatically and accurately detect motor performance parameters such as resistance, back EMF, and inductance. It can also achieve micrometer-level detection and heterophony spectrum analysis of the motor, accurately identify surface defects, and perform multi-dimensional data fusion analysis to determine quality. Thus, it effectively monitors the qualification of the motor production process and improves the pass rate of motor products.

[0004] According to an embodiment of the present invention, a motor testing line assembly includes: a conveyor body for carrying and conveying a motor under test; a performance testing device located at a first detection station of the conveyor body, the performance testing device being adapted to be electrically connected to the motor under test for testing the operating performance of the motor under test; a noise testing device located at a second detection station of the conveyor body for testing the noise level of the motor under test; an appearance testing device located at a third detection station of the conveyor body for detecting the appearance level of the motor under test; and a control module, wherein the performance testing device, the noise testing device, and the appearance testing device are respectively communicatively connected to the control module, and the control module is used to determine the pass / fail status of the motor under test based on the detected operating performance, noise level, and appearance level.

[0005] According to the motor testing line assembly of this utility model embodiment, through the coordinated use of the conveyor body, performance testing equipment, noise testing equipment, and appearance testing equipment, the performance testing equipment integrates a multi-channel electrical parameter analyzer to accurately collect performance parameters such as motor resistance, back EMF, and inductance. Furthermore, the noise testing equipment enables micrometer-level detection and abnormal sound spectrum analysis of the motor under specific operating conditions, and the high-resolution appearance testing equipment identifies surface defects, thus achieving comprehensive and effective motor inspection. The use of these various testing devices avoids the problems of low detection rates caused by data bias and visual fatigue in manual inspection. Moreover, the performance testing equipment, noise testing equipment, and appearance testing equipment... Each device is connected to the control module for communication, enabling data transmission between the performance testing equipment, noise testing equipment, and appearance testing equipment. This allows the control module to combine the test data to determine the pass / fail status of the motor's performance, noise, and appearance. It can provide timely warnings for non-conforming products and achieve quality judgment through multi-dimensional data fusion analysis. An automatic trigger mechanism for abnormal products links with the control module to generate a quality traceability report in the cloud. By constructing a quality database covering the entire lifecycle of the motor, the stability of various parameters in the motor production process is achieved. Compared with traditional testing methods, the testing efficiency is improved by 280%, the false detection rate is reduced to below 0.12%, and the product pass rate and production OEE index are significantly improved.

[0006] Therefore, by effectively controlling the product quality of motors, defective products can be prevented from reaching customers, thereby reducing customer complaints and lowering the quality costs of motors.

[0007] According to some embodiments of the present invention, the motor test line assembly is provided with a limiting fixture installed on the main body of the conveyor line, which is used to fix the motor under test.

[0008] According to some embodiments of the present invention, the motor test line assembly is provided with an electrical connection fixture, which is used to selectively connect the motor under test to the performance testing equipment when the motor under test moves with the conveyor body to the first testing station, or to selectively connect the motor under test to the noise testing equipment when the motor under test moves with the conveyor body to the second testing station.

[0009] According to some embodiments of the present invention, the motor test line assembly includes a resistance testing device, an insulation withstand voltage tester, and an LCR tester. The resistance testing device is used to measure the resistance value of the motor under test. The insulation withstand voltage tester is used to measure the insulation resistance and withstand voltage of the motor under test. The LCR tester is used to measure the inductance and resistance of the motor under test. The resistance testing device, the insulation withstand voltage tester, and the LCR tester are adapted to be electrically connected to the motor under test, respectively.

[0010] According to some embodiments of the present invention, the motor test line assembly includes a device housing, wherein the resistance tester, the insulation withstand voltage tester, and the LCR tester are integrated and installed in the device housing and are respectively connected to a first electrical connection portion extending outside the device housing, and the first electrical connection portion is used to electrically connect to the motor under test.

[0011] According to some embodiments of the present invention, the motor test line assembly includes an acceleration sensor and a spectrum analyzer. The noise test equipment is provided with a second electrical connection part for electrical connection with the motor under test. The acceleration sensor is used to measure the amplitude state of the motor under test during operation. The acceleration sensor and the spectrum analyzer are communicatively connected to send the amplitude state to the spectrum analyzer. The spectrum analyzer is used to analyze the amplitude state.

[0012] According to some embodiments of the present invention, the motor test line assembly is constructed as a plurality of detection cameras, which are spaced apart and distributed at the third detection station, and the plurality of detection cameras are adapted to take pictures of the motor under test from different angles.

[0013] According to some embodiments of the present invention, in the motor test line assembly, the performance testing equipment, the noise testing equipment, and the appearance testing equipment are sequentially distributed in the conveying direction of the main body of the conveyor line;

[0014] The performance testing device, the noise testing device, and the appearance testing device are located on the same side of the main body of the conveyor line, or at least two of the performance testing device, the noise testing device, and the appearance testing device are located on different sides of the main body of the conveyor line.

[0015] According to some embodiments of the present utility model, the motor testing line assembly is provided with a non-conforming product unloading area at the first testing station, the second testing station and the third testing station, and the third testing station is also provided with a conforming product unloading area.

[0016] And / or, the first detection station, the second detection station and the third detection station are all equipped with a barcode scanner, which is used to identify and detect the motor under test, and the barcode scanner is electrically connected to the control module.

[0017] According to some embodiments of the present invention, the motor test line assembly includes a control module comprising a data processing unit and a display panel. The data processing unit is communicatively connected to the performance testing equipment, the noise testing equipment, and the appearance testing equipment, respectively, and is electrically connected to the display panel, which is used to display the test data of the data processing unit.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the layout of the motor test line assembly according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the operation between the various measuring devices and control modules of the motor test line assembly according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Motor test line assembly 100,

[0024] The conveyor line body 1, first inspection station 11, second inspection station 12, third inspection station 13, limit fixture 14, electrical connection fixture 15, non-conforming product unloading area 16, qualified product unloading area 17, barcode identification device 18, loading area 19, performance testing equipment 2, resistance testing device 21, insulation withstand voltage tester 22, LCR tester 23, equipment housing 24, first electrical connection part 25, noise testing equipment 3, acceleration sensor 31, spectrum analyzer 32, second electrical connection part 33, appearance testing equipment 4, inspection camera 41, control module 5, data processing unit 51, display panel 52, motor under test 6. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following is for reference. Figure 1 The motor test line assembly 100 according to an embodiment of the present utility model is used to test the electrical performance and other parameters of the motor 6 under test, and can distinguish between qualified and unqualified motors.

[0029] The motor test line assembly 100 includes a conveyor body 1, which is used to carry and transport the motor under test 6. That is, the conveyor body 1 can carry the motor under test 6 and bear its weight. The bearing function of the conveyor body 1 is the basic support for the motor under test 6, and the conveyor body 1 can transport the motor under test 6. In this way, the conveyor body 1 can realize the transport of the motor under test 6. In actual use, the conveyor body 1 can transport the motor under test 6 from one position to another, which can realize the handling of the motor under test 6.

[0030] The main body 1 of the conveyor line is the transmission mechanism of the motor testing line assembly 100. For example, the main body 1 of the conveyor line can be made of belts, synchronous belts, etc., which enables automatic and precise conveying of the motor under test 6, reduces manual handling steps, lowers labor costs, and improves production efficiency. Furthermore, the main body 1 of the conveyor line can fix the motor under test 6, ensuring a more stable relative position between the motor under test 6 and the main body 1, and ensuring the stability of the conveying process of the motor under test 6.

[0031] like Figure 1 As shown, the motor test line assembly 100 also includes a performance testing device 2, which is located at the first testing station 11 of the main body 1 of the conveyor line. The performance testing device 2 is adapted to be electrically connected to the motor under test 6 for testing the operating performance of the motor under test 6.

[0032] The performance testing equipment 2 is used to test the performance parameters of the motor under test 6. The main body 1 of the conveyor line is equipped with a first testing station 11, and the performance testing equipment 2 is located at the first testing station 11. That is, the first testing station 11 corresponds to the performance testing equipment 2, so that the operating performance of the motor under test 6 can be tested at the first testing station 11. The performance testing equipment 2 can be electrically connected to the motor under test 6, so that the performance testing equipment 2 can detect the operating performance of the motor under test 6, which can include parameters such as resistance, withstand voltage, and back EMF. The performance testing equipment 2 can be disconnected from the motor under test 6, at which point the operating performance of the motor under test 6 cannot be tested.

[0033] In actual use, after the main body 1 of the conveyor line transports the motor under test 6 to the first testing station 11 and the motor under test 6 is electrically connected to the performance testing equipment 2, the operating performance of the motor under test 6 located at the first testing station 11 can be tested. After the test is completed, the motor under test 6 is disconnected from the performance testing equipment 2, and the main body 1 of the conveyor line transports the motor under test 6 to the next station to prepare for subsequent work.

[0034] like Figure 1 As shown, the motor test line assembly 100 also includes a noise test device 3, which is located at the second testing station 12 of the main body 1 of the conveyor line, and is used to test the noise status of the motor 6 under test.

[0035] The noise testing device 3 is used to test the operating noise of the motor 6 under test. The main body 1 of the conveyor line is equipped with a second detection station 12, where the noise testing device 3 is located. In other words, the second detection station 12 corresponds to the noise testing device 3, allowing the noise status of the motor 6 under test to be tested at the second detection station 12. The noise testing device 3 can be electrically connected to the motor 6 under test, enabling it to detect the noise status, which can be fed back through the vibration level of the motor 6. Furthermore, the noise testing device 3 can be disconnected from the motor 6 under test; in this case, noise status testing of the motor 6 under test cannot be performed.

[0036] In actual use, after the main body 1 of the conveyor line transports the motor under test 6 to the second testing station 12 and the motor under test 6 is electrically connected to the noise testing equipment 3, the noise status of the motor under test 6 located at the second testing station 12 can be tested. After the test is completed, the motor under test 6 is disconnected from the noise testing equipment 3, and the main body 1 of the conveyor line transports the motor under test 6 to the next station to prepare for subsequent work.

[0037] like Figure 1 As shown, the motor test line assembly 100 also includes an appearance test device 4, which is located at the third inspection station 13 of the main body of the conveyor line 1, and is used to inspect the appearance of the motor 6 under test.

[0038] Among them, the appearance testing equipment 4 is used to test the appearance structure of the motor 6 under test. The main body 1 of the conveyor line is equipped with a third inspection station 13. The appearance testing equipment 4 is located at the third inspection station 13. That is to say, the third inspection station 13 corresponds to the appearance testing equipment 4. In this way, the appearance status of the motor 6 under test can be tested at the third inspection station 13. The appearance status may include external structural damage, unclear nameplate, out-of-tolerance dimensions, etc.

[0039] In actual use, after the main body 1 of the conveyor line transports the motor 6 to be tested to the third inspection station 13, the appearance testing equipment 4 can test the noise status of the motor 6 to be tested located at the third inspection station 13. After the test is completed, the main body 1 of the conveyor line transports the motor 6 to be tested to the next station to prepare for subsequent work.

[0040] like Figure 1As shown, the motor test line assembly 100 also includes a control module 5. The performance testing device 2, noise testing device 3, and appearance testing device 4 are all communicatively connected to the control module 5. The control module 5 is the main control unit of the motor test line assembly 100. The performance testing device 2 is communicatively connected to the control module 5, which enables the transmission of data and instructions between the control module 5 and the performance testing device 2. That is, the control module 5 can send instructions to the performance testing device 2 and control the opening, testing, and closing of the performance testing device 2. The control module 5 can also receive the operating performance data detected by the performance testing device 2.

[0041] The noise testing device 3 is communicatively connected to the control module 5, enabling the transmission of data and instructions between the control module 5 and the noise testing device 3. That is, the control module 5 can send instructions to the noise testing device 3 to control the opening, testing, and closing of the noise testing device 3, and the control module 5 can receive the noise status data detected by the noise testing device 3.

[0042] The appearance testing device 4 is communicatively connected to the control module 5, enabling the transmission of data and instructions between the control module 5 and the appearance testing device 4. That is, the control module 5 can send instructions to the appearance testing device 4, and can control the opening, testing and closing of the appearance testing device 4, etc. The control module 5 can also receive the appearance status data detected by the appearance testing device 4.

[0043] The communication connection includes wired and wireless connections. Performance testing device 2, noise testing device 3, and appearance testing device 4 can be connected to control module 5 via cables, and performance testing device 2, noise testing device 3, and appearance testing device 4 can be connected to control module 5 via networks, etc. Different connection methods can realize the transmission of data and commands between the three testing devices and control module 5. The settings are diverse and can be flexibly selected.

[0044] Meanwhile, the control module 5 is used to determine the pass / fail status of the motor under test 6 based on the detected operating performance, noise status, and appearance status. That is, the control module 5 can determine whether the operating performance of the motor under test 6 is qualified based on the operating performance detected by the performance testing device 2, so as to distinguish between qualified and unqualified operating performance of the motor under test 6. The control module 5 can also determine whether the noise status of the motor under test 6 is qualified based on the noise status detected by the noise testing device 3, so as to distinguish between qualified and unqualified noise status of the motor under test 6. Furthermore, the control module 5 can determine whether the appearance status of the motor under test 6 is qualified based on the appearance status detected by the appearance testing device 4, so as to distinguish between qualified and unqualified appearance status of the motor under test 6.

[0045] Therefore, the control module 5 can determine whether the operating performance, noise status, and appearance status of the motor under test 6 are qualified or unqualified. By judging various parameters of the motor under test 6, the normal flow of qualified products can be ensured, and unqualified products can be rejected to reduce the flow of unqualified products to the user end, thereby improving product quality control and enhancing the user experience.

[0046] According to the motor test line assembly 100 of this utility model embodiment, through the coordinated use of the conveyor body 1, performance testing equipment 2, noise testing equipment 3, and appearance testing equipment 4, the performance testing equipment integrates a multi-channel electrical parameter analyzer to accurately collect performance parameters such as motor resistance, back EMF, and inductance. The noise testing equipment enables μm-level detection and abnormal sound spectrum analysis of the motor under specific operating conditions, and the high-resolution appearance testing equipment identifies surface defects, achieving comprehensive and effective inspection of the motor. These three types of testing equipment offer high accuracy in data acquisition and judgment during the testing process, avoiding the problems of low detection rates caused by data deviation and visual fatigue in manual inspection, thereby reducing the false detection rate. Furthermore, the performance testing equipment 2, noise testing equipment 3, and appearance testing equipment 4... The observation and testing equipment 4 is connected to the control module 5, enabling data transmission between the performance testing equipment 2, noise testing equipment 3, and appearance testing equipment 4 and the control module 5. The control module 5 can analyze and judge the performance, noise, and appearance of the motor under test 6 based on the test data. It can provide timely warnings for non-conforming products in terms of performance, noise, and appearance. Quality judgment is achieved through multi-dimensional data fusion analysis. An automatic trigger mechanism for abnormal products is established, and the control module generates a quality traceability report in the cloud. By constructing a quality database for the entire life cycle of the motor, the stability of various parameters in the motor production process is achieved. Compared with traditional testing methods, the testing efficiency is improved by 280%, the false detection rate is reduced to below 0.12%, and the product qualification rate and production OEE index are significantly improved.

[0047] This effectively prevents defective products from reaching customers, thereby reducing customer complaints and lowering the quality cost of motors.

[0048] In some embodiments, the main body 1 of the conveyor line is equipped with a limiting fixture 14, which is used to fix the motor 6 to be tested.

[0049] The motor 6 to be tested can be fixed by setting a limiting fixture 14 on the main body 1 of the conveyor line. In this way, the motor 6 to be tested can be fixed to the main body 1 of the conveyor line, and the limiting fixture 14 can move with the main body 1 of the conveyor line. In actual use, when the main body 1 of the conveyor line is running, the motor 6 to be tested can be transported to the first detection station 11, the second detection station 12 and the third detection station 13 in sequence.

[0050] In addition, the limiting fixture 14 is provided with a fixed space for accommodating and fixing the motor 6 under test, so that the motor 6 under test can be more stable relative to the main body 1 of the conveyor line.

[0051] Therefore, by integrating the limiting fixture 14 into the main body 1 of the conveyor line, the installation accuracy of the motor under test 6 can be improved, and the motor under test 6 can be prevented from falling off the main body 1 of the conveyor line, thereby improving the stability and reliability of the conveyor line main body 1 in conveying the motor under test 6.

[0052] It should be noted that the limiting fixture 14 can be integrally formed with the main body 1 of the conveyor line, meaning that the limiting fixture 14 can be machined on the main body 1 of the conveyor line, which can improve the connection strength between the limiting fixture 14 and the main body 1 of the conveyor line. In actual design, the limiting fixture 14 can be constructed by setting multiple sections on the main body 1 of the conveyor line, which is simple in structure and convenient to process. Moreover, the limiting fixture 14 can be detachably connected to the main body 1 of the conveyor line, and its setting method is diverse and can be flexibly set.

[0053] Meanwhile, multiple limit fixtures 14 can be set, and multiple limit fixtures 14 are connected to the main body 1 of the conveyor line at intervals, so that multiple motors 6 to be tested can be installed at intervals on the main body 1 of the conveyor line. In this way, multiple motors 6 to be tested can rotate at the same time, so as to realize the detection of multiple motors 6 to be tested and improve the detection efficiency of motors 6 to be tested.

[0054] In some embodiments, the main body 1 of the conveyor line is equipped with an electrical connection fixture 15, which is used to selectively connect the motor under test 6 to the performance testing equipment 2 when the motor under test 6 runs with the main body 1 of the conveyor line to the first testing station 11, or to selectively connect the motor under test 6 to the noise testing equipment 3 when the motor under test 6 runs with the main body 1 of the conveyor line to the second testing station 12.

[0055] In other words, the electrical connection fixture 15 can selectively connect the motor under test 6 to the performance testing equipment 2, and the electrical connection fixture 15 can also selectively connect the motor under test 6 to the noise testing equipment 3. Through one electrical connection fixture 15, the connection between the motor under test 6 and two testing equipment can be realized. The structure is simpler, the integration is higher, the connection is more convenient, and the cost is lower.

[0056] Among them, by setting an electrical connection fixture 15 on the main body 1 of the conveyor line, the electrical connection fixture 15 can be electrically connected to the motor 6 to be tested, and the electrical connection fixture 15 can move with the main body 1 of the conveyor line. In actual use, when the main body 1 of the conveyor line is running, the electrical connection fixture 15 can be transported to the first detection station 11, the second detection station 12 and the third detection station 13 in sequence.

[0057] Furthermore, the electrical connection fixture 15 can be connected to the limiting fixture 14 to fix the electrical connection fixture 15, or the electrical connection fixture 15 can be directly connected to the main body 1 of the conveyor line. The electrical connection fixture 15 can be constructed as a fixture plate, etc., and can be provided with a connecting part for electrical connection with the motor wire of the motor 6 under test. The electrical connection fixture 15 is also connected to the performance testing equipment 2 or the noise testing equipment 3.

[0058] Thus, when the motor under test 6 and the electrical connection fixture 15 flow to the first testing station 11 along with the main body 1 of the conveyor line, the electrical connection fixture 15 is electrically connected to the performance testing equipment 2, and the operating performance of the motor under test 6 can be tested. After the test is completed, the electrical connection fixture 15 can be disconnected from the performance testing equipment 2. At the same time, when the motor under test 6 and the electrical connection fixture 15 flow to the second testing station 12 along with the main body 1 of the conveyor line, the electrical connection fixture 15 is electrically connected to the noise testing equipment 3, and the noise status of the motor under test 6 can be tested. After the test is completed, the electrical connection fixture 15 can be disconnected from the noise testing equipment 3.

[0059] Therefore, through the above settings, the motor under test 6 can remain connected to the electrical connection fixture 15 during operation, and the entire testing process does not require manual operation, reducing labor costs, minimizing personnel injury during testing, and achieving high testing efficiency and safety.

[0060] Meanwhile, multiple electrical connection fixtures 15 can be configured, and multiple electrical connection fixtures 15 are connected to the main body 1 of the conveyor line at intervals. This allows multiple electrical connection fixtures 15 to be installed at intervals on the main body 1 of the conveyor line, so that multiple motors 6 under test can rotate simultaneously, thereby enabling multiple motors 6 under test to be tested at different testing stations and improving the testing efficiency of the motors 6 under test.

[0061] In some embodiments, the performance testing equipment 2 includes a resistance testing device 21, an insulation withstand voltage tester 22, and an LCR tester 23. The resistance testing device 21 is used to measure the resistance value of the motor under test 6, the insulation withstand voltage tester 22 is used to measure the insulation resistance and withstand voltage of the motor under test 6, and the LCR tester 23 is used to measure the inductance and resistance of the motor under test 6. The resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23 are adapted to be electrically connected to the motor under test 6, respectively.

[0062] The performance testing equipment 2 includes a resistance testing device 21, which is electrically connected to the motor under test 6. This allows the resistance value of the motor under test 6 to be detected. The resistance testing device 21 can be configured as a ohmmeter, which can detect the resistance value of the motor under test 6, display the resistance value, and transmit the tested resistance value.

[0063] The performance testing equipment 2 also includes an insulation withstand voltage tester 22, which is electrically connected to the motor under test 6. It can detect the insulation resistance and withstand voltage of the motor under test 6, detect the insulation performance between the motor winding and the casing or other conductive parts, and test the ability of the motor insulation layer to withstand high voltage to determine whether the insulation will be broken down. The insulation withstand voltage tester 22 can also display and transmit the insulation resistance and withstand voltage.

[0064] The performance testing equipment 2 also includes an LCR tester 23, which is electrically connected to the motor under test 6. The LCR tester 23 can measure the inductance and resistance of the motor under test 6. In this way, combined with the input voltage and frequency of the performance testing equipment 2, the back electromotive force of the motor under test 6 can be calculated and various data can be recorded.

[0065] Therefore, by setting a resistance testing device 21, an insulation withstand voltage tester 22, and an LCR tester 23 in the performance testing equipment 2, a multi-channel electrical parameter analyzer can be integrated into the performance testing equipment 2 to accurately collect standard performance parameters such as motor resistance, back EMF, and inductance. This also simplifies the overall structure and increases the integration. The performance testing equipment 2 can detect multiple parameters of the motor under test 6, thereby improving the testing efficiency of the motor under test 6.

[0066] In some embodiments, the performance testing device 2 further includes a device housing 24, a resistance testing device 21, an insulation withstand voltage tester 22 and an LCR tester 23 are integrated and mounted on the device housing 24 and are respectively connected to a first electrical connection part 25 extending outside the device housing 24. The first electrical connection part 25 is used to electrically connect with the motor 6 under test.

[0067] The equipment housing 24 is the main frame of the performance testing equipment 2. The resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23 are all installed in the equipment housing 24. This allows for the integrated setup of the resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23. Furthermore, the equipment housing 24 can shield and protect the resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23, resulting in a neat appearance for the performance testing equipment 2 and a higher degree of equipment integration.

[0068] Furthermore, the resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23 are each connected to a first electrical connection part 25. In this way, the resistance testing device 21 can be electrically connected to the motor under test 6 through the first electrical connection part 25, so that the resistance testing device 21 can measure the resistance of the motor under test 6. The insulation withstand voltage tester 22 can be electrically connected to the motor under test 6 through the first electrical connection part 25, so that the insulation withstand voltage tester 22 can measure the insulation resistance and withstand voltage of the motor under test 6. In addition, the LCR tester 23 can be electrically connected to the motor under test 6 through the first electrical connection part 25, so that the LCR tester 23 can measure the back electromotive force of the motor under test 6.

[0069] The first electrical connection part 25 can be configured as three, or the resistance test device 21, the insulation withstand voltage tester 22 and the LCR tester 23 can be respectively connected to one first electrical connection part 25.

[0070] In actual design, the first electrical connection part 25 can be connected to the equipment housing 24, and the first electrical connection part 25 can be set to extend outside the equipment housing 24 to facilitate the connection of the first electrical connection part 25 with the motor under test 6, and the first electrical connection part 25 can be set to be located inside the equipment housing 24.

[0071] It should be noted that the equipment housing 24 may be equipped with an electrical control box, in which the resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23 can be detachably installed, facilitating the wiring connection and arrangement of the resistance testing device 21, the insulation withstand voltage tester 22, and the LCR tester 23.

[0072] In addition, the performance testing equipment 2 can not only be set to test the resistance, insulation resistance, withstand voltage and back EMF of the motor under test 6, but can also add the detection of other performance parameters. The added testing devices can be integrated into the equipment housing 24, which is conducive to the expanded application of the performance testing equipment 2.

[0073] In some embodiments, the noise testing device 3 includes an accelerometer 31 and a spectrum analyzer 32. The noise testing device 3 is provided with a second electrical connection 33, which is used to electrically connect with the motor under test 6. The accelerometer 31 is used to measure the amplitude state of the motor under test 6 during operation. The accelerometer 31 and the spectrum analyzer 32 are communicatively connected to send the amplitude state to the spectrum analyzer 32. The spectrum analyzer 32 is used to analyze the amplitude state.

[0074] Among them, the accelerometer 31 is a device that converts mechanical vibration or acceleration into electrical signals, realizing the monitoring of the operating status, motion trajectory, structural health, and other aspects of the component under test. The spectrum analyzer 32 can analyze the input signal and form a spectrum curve, which can intuitively observe the frequency components, amplitude distribution, noise level, and other characteristics of the signal. The noise status of the motor 6 under test can be measured through the accelerometer 31 and the spectrum analyzer 32.

[0075] The noise testing device 3 is equipped with a second electrical connection part 33, which is electrically connected to the motor under test 6. The second electrical connection part 33 can be electrically connected to the device power supply. The acceleration sensor 31 is mechanically connected to the motor under test 6 to detect the amplitude state of the motor under test 6. The acceleration sensor 31 is communicatively connected to the spectrum analyzer 32 to transmit the detected amplitude data to the spectrum analyzer 32. After analysis by the spectrum analyzer 32, a corresponding spectrum curve can be generated. Then, it is determined whether the measured spectrum curve of the motor under test 6 is qualified, so as to measure whether the noise state of the motor under test 6 is qualified.

[0076] In actual use, the acceleration sensor 31 can be set on the main body 1 of the conveyor line. In this way, before the test, the acceleration sensor 31 can be placed on the end cover of the motor under test 6. When the motor under test 6 flows to the second detection station 12 with the main body 1 of the conveyor line, the acceleration sensor 31 communicates with the spectrum analyzer 32 of the noise testing equipment 3, and the motor under test 6 is electrically connected to the noise testing equipment 3 through the second connection part to test the noise status of the motor under test 6.

[0077] Therefore, by using the acceleration sensor 31 and the spectrum analyzer 32 together, the motor can be detected at the μm level and analyzed for abnormal audio spectrum under specific working conditions. The performance and noise of the motor can be accurately analyzed. Furthermore, by assembling the acceleration sensor 31 before testing, the number of manual operation steps during the operation of the motor 6 under test can be reduced, thus reducing labor costs and improving testing efficiency.

[0078] It should be noted that during actual testing, after the motor under test 6 is powered on and starts running, the accelerometer 31 detects the amplitude state of the motor under test 6 body for 15 seconds. The spectrum analyzer 32 generates a measured waveform. By comparing the measured waveform with the set waveform, if the deviation between the measured waveform and the set waveform is within 10%, and the average amplitude of the motor under test 6 in the X, Y, and Z directions is less than 20µm, then the noise of the motor under test 6 is deemed qualified. If the deviation between the measured waveform and the set waveform is greater than 10%, that is, the measured waveform exceeds the upper limit of the set waveform, and the average amplitude of the motor under test 6 in the X, Y, and Z directions is greater than 20µm, then the noise of the motor under test 6 is deemed unqualified. The analysis process can be carried out automatically, which improves the efficiency and accuracy of the noise test of the motor under test 6.

[0079] In some embodiments, the appearance testing device 4 is configured as a plurality of inspection cameras 41, which are spaced apart and distributed at the third inspection station 13, and the plurality of inspection cameras 41 are adapted to take pictures of the motor 6 under test from different angles.

[0080] Multiple inspection cameras 41 are spaced apart at the third inspection station 13, which can take pictures of the motor 6 under test at the third inspection station 13 from multiple angles to identify and judge the appearance structure of the motor 6 under test. In actual use, multiple inspection cameras 41 take pictures and scan codes at the same time, which can identify phenomena such as appearance damage, unclear nameplate, and out-of-tolerance dimensions.

[0081] Therefore, by configuring multiple inspection cameras 41 in the appearance testing equipment 4, the multiple inspection cameras 41 can form a multi-axis high-resolution shooting capability and use deep learning algorithms to identify surface defects, which can detect appearance abnormalities such as scratches, corrosion, and assembly misalignment, thereby improving the inspection efficiency of a single motor 6 under test, and making the inspection more comprehensive and accurate.

[0082] In the actual design, multiple inspection cameras 41 can be connected to the third inspection station 13 of the main body 1 of the conveyor line by bolts or other means. The multiple inspection cameras 41 can be evenly distributed around the third inspection station 13, so that when the motor under test 6 flows to the third inspection station 13, the multiple inspection cameras 41 can be distributed around the outer periphery of the motor under test 6 to improve the comprehensiveness of the images captured by the multiple inspection cameras 41.

[0083] Furthermore, the detection cameras 41 can be three, four, five, etc. In this embodiment, the detection cameras 41 are set to four, and the detection cameras 41 can be constructed as CCD cameras, etc.

[0084] In some embodiments, the performance testing device 2, the noise testing device 3, and the appearance testing device 4 are sequentially distributed along the conveying direction of the conveyor line body 1. The conveyor line body 1 is used to move the motor under test 6 through multiple stations; that is, the conveying direction of the conveyor line body 1 is the rotation direction of the motor under test 6. The rotation direction of the motor under test 6 is as follows: Figure 1 As indicated by the arrows, the performance testing device 2, noise testing device 3, and appearance testing device 4 are sequentially distributed along the flow direction of the motor under test 6. This allows for testing as the motor under test 6 moves along the main body of the conveyor line 1 to its corresponding testing device. Furthermore, it enables comprehensive testing of the motor under test 6, including its operational performance, noise level, and appearance. The spacing between these devices along the conveyor line 1 facilitates their arrangement, installation, and maintenance.

[0085] Among them, the performance testing equipment 2, the noise testing equipment 3 and the appearance testing equipment 4 are located on the same side of the main body 1 of the conveyor line. This allows the three devices to occupy the same side of the main body 1 of the conveyor line, making the overall motor testing line assembly 100 more regular and reasonable in its distribution, and easier to maintain.

[0086] Alternatively, at least two of the performance testing equipment 2, noise testing equipment 3, and appearance testing equipment 4 can be located on different sides of the conveyor line body 1. That is, the performance testing equipment 2 and noise testing equipment 3 can be located on one side of the conveyor line body 1, and the appearance testing equipment 4 can be located on the other side of the conveyor line body 1. Or, the performance testing equipment 2 and appearance testing equipment 4 can be located on one side of the conveyor line body 1, and the noise testing equipment 3 can be located on the other side of the conveyor line body 1. Or, the appearance testing equipment 4 and noise testing equipment 3 can be located on one side of the conveyor line body 1, and the performance testing equipment 2 can be located on the other side of the conveyor line body 1. Different tests can be performed on different sides of the conveyor line body 1.

[0087] Furthermore, the appearance testing equipment 4 can also be distributed around the outer periphery of the main body 1 of the conveyor line, and its setting method is diverse and can be flexibly set according to the site space.

[0088] In some embodiments, the first inspection station 11, the second inspection station 12 and the third inspection station 13 are each provided with a non-conforming product unloading area 16, and the third inspection station 13 is also provided with a conforming product unloading area 17.

[0089] like Figure 1As shown, the performance testing equipment 2, noise testing equipment 3, and appearance testing equipment 4 are sequentially distributed along the conveying direction of the main body 1 of the conveyor line. The first inspection station 11, the second inspection station 12, and the third inspection station 13 are sequentially distributed along the conveying direction of the main body 1 of the conveyor line. The main body 1 of the conveyor line has a feeding area 19 at the front end of the first inspection station 11. The motor to be tested 6 is manually fed from the feeding area 19. The first inspection station 11 has a non-conforming product unloading area 16, which is close to the performance testing equipment 2. When the performance testing equipment 2 detects that the resistance, withstand voltage, or back EMF of the motor to be tested 6 is unqualified, the motor to be tested 6 is determined to be unqualified and can be discharged from the non-conforming product unloading area 16 to avoid the unqualified products from flowing to the next testing station. When the resistance, withstand voltage, and back EMF of the motor to be tested 6 are all qualified, the motor to be tested 6 flows to the next station.

[0090] Furthermore, a non-conforming product unloading area 16 is provided at the second testing station 12. That is, the non-conforming product unloading area 16 is close to the noise testing equipment 3. When the noise testing equipment 3 detects that the amplitude state of the motor under test 6 is unqualified, it determines that the motor under test 6 is unqualified. The unqualified motor under test 6 can flow out from the non-conforming product unloading area 16, which can prevent the unqualified products from flowing to the next testing station. When the amplitude state of the motor under test 6 is qualified, the motor under test 6 flows to the next station.

[0091] Meanwhile, the third inspection station 13 is equipped with a non-conforming product unloading area 16, which is close to the appearance testing equipment 4. When the appearance testing equipment 4 detects that the appearance of the motor under test 6 is unconforming, it determines that the motor under test 6 is unconforming and can be discharged from the non-conforming product unloading area 16, thus preventing the unconforming products from flowing to the next inspection station. When the appearance of the motor under test 6 is qualified, the motor under test 6 flows to the next station.

[0092] Furthermore, the third inspection station 13 is also equipped with a qualified product unloading area 17. For example, if the main body 1 of the conveyor line has a qualified product unloading area 17 at the rear end of the third inspection station 13, when the resistance, withstand voltage, back EMF, amplitude state, and appearance state of the motor under test 6 are all qualified, the motor under test 6 flows out from the qualified product unloading area 17. And at the qualified product outflow station, qualified motors can be boxed and packaged manually or mechanically.

[0093] Therefore, through the above settings, the unqualified products of the motor under test 6 can be eliminated during different tests, the unqualified factors of the motor under test 6 can be clearly identified, which is beneficial to the quality control of the motor under test 6 in the future, and the unqualified products can be distinguished from the qualified products, which is beneficial to improving the quality of the motor.

[0094] In this system, defective products at the first inspection station 11, the second inspection station 12, and the third inspection station 13 can all be automatically rejected by the rejection device. Furthermore, the first inspection station 11, the second inspection station 12, and the third inspection station 13 can each be configured as a defective flow channel to accommodate defective motors, thus reducing the need for manual material handling. Alternatively, defective products can be removed manually.

[0095] In other embodiments, a barcode scanner 18 is provided at the first detection station 11, the second detection station 12 and the third detection station 13. The barcode scanner 18 is used to identify and detect the motor 6 under test. The barcode scanner 18 is electrically connected to the control module 5.

[0096] In this system, a barcode scanner 18 is installed at the first testing station 11. This allows the motor 6 to be tested to be scanned and identified by the barcode scanner 18 before being transferred to the first testing station 11. The barcode scanner 18 at the first testing station 11 is electrically connected to the control module 5, which allows the barcode scanner 18 to transmit the batch code of the motor 6 to be tested to the control module 5. The control module 5 can then record the information of the motor 6 to be tested at the first testing station 11 and then perform performance testing on the motor 6 with the batch code.

[0097] A barcode scanner 18 is installed at the second inspection station 12, which allows the motor 6 to be tested to be scanned by the barcode scanner 18 before being transferred to the second inspection station 12. The barcode scanner 18 at the second inspection station 12 is electrically connected to the control module 5, which allows the barcode scanner 18 to transmit the batch code of the motor 6 to be tested to the control module 5. The information of the motor 6 to be tested at the second inspection station 12 can be recorded. Then, the noise status of the motor 6 to be tested with the batch code is detected.

[0098] A barcode scanner 18 is installed at the third inspection station 13, which allows the motor 6 to be tested to be scanned by the barcode scanner 18 before being transferred to the third inspection station 13. The barcode scanner 18 at the third inspection station 13 is electrically connected to the control module 5, which allows the barcode scanner 18 to transmit the batch code of the motor 6 to be tested to the control module 5. The information of the motor 6 to be tested at the third inspection station 13 can be entered, and then the appearance status of the motor 6 to be tested with the batch code can be inspected.

[0099] Therefore, through the above settings, the information of the motor 6 under test at each testing station can be automatically entered, making the operation more convenient and ensuring the accuracy and orderliness of the test data recording, which is convenient for subsequent query and data analysis.

[0100] In addition, the barcode scanner 18 can be detachably installed at different detection stations of the main body 1 of the conveyor line via bolts or other connecting parts, and the barcode scanner 18 can be configured as an automatic barcode scanner or the like.

[0101] In some embodiments, the control module 5 includes a data processing unit 51 and a display panel 52. The data processing unit 51 is communicatively connected to the performance testing device 2, the noise testing device 3, and the appearance testing device 4, respectively. The data processing unit 51 is electrically connected to the display panel 52, which is used to display the test data of the data processing unit 51.

[0102] Among them, such as Figure 2 As shown, the control module 5 includes a data processing unit 51, which records and analyzes the test data from each testing device. The data processing unit 51 is the backend data acquisition and analysis section. The data processing unit 51 is communicatively connected to the performance testing device 2. In actual testing, the test data from the performance testing device 2 can be transmitted to the first database of the data processing unit 51 for subsequent querying and analysis. The data processing unit 51 is also communicatively connected to the noise testing device 3. In actual testing, the test data from the noise testing device 3 can be transmitted to the second database of the data processing unit 51 for subsequent querying and analysis. Furthermore, the data processing unit 51 is communicatively connected to the appearance testing device 4. In actual testing, the test data from the appearance testing device 4 can be transmitted to the third database of the data processing unit 51 for subsequent querying and analysis.

[0103] Meanwhile, the control module also includes a display panel 52, which has a display function and an operation interface for user operation. The display panel 52 is a front-end digital interface. The data processing unit 51 is electrically connected to the display panel 52, which can display the detection data collected by the data processing unit 51. Users can also operate the display panel 52 and input some commands that need to be set.

[0104] Therefore, the data processing unit 51 can be connected in parallel with the performance testing equipment 2, the noise testing equipment 3 and the appearance testing equipment 4, so as to realize the acquisition and processing of the three data respectively. The data processing results are transformed into icons through the display panel 52 to establish the monitoring target items described later and receive the cloud early warning process triggered by the backend.

[0105] In practical applications, control module 5 is configured as a distributed industrial PLC control system integrating RS485 communication protocol. It achieves quality judgment through multi-dimensional data fusion analysis algorithms, automatically triggers abnormal product detection mechanisms, and links with the cloud system to generate quality traceability reports. This system constructs a full lifecycle quality database for motors, enabling real-time monitoring of the process capability index (CPK) (described later). Compared to traditional testing methods, it improves testing efficiency by 280%, reduces the false positive rate to below 0.12%, and significantly improves product qualification rate and production OEE (Outcome Execution) indicators.

[0106] It should be noted that the performance testing device 2 and the noise testing device 3 can each be equipped with a control module 5, and the appearance testing device 4 can be connected to the control module 5 of the noise testing device 3.

[0107] In this application, the data processing unit 51 is set with preset values ​​for different parameters. Among them, the insulation withstand voltage yield, resistance yield, back EMF yield, noise yield, and appearance yield of the batch of motors 6 under test can be set to be greater than or equal to 99.3%, respectively. In actual testing, the pass rate of the batch test data can be monitored. When any one of the insulation withstand voltage yield, resistance yield, back EMF yield, noise yield, or appearance yield is less than 99.3%, the control module 5 will issue an early warning to optimize the parameters and ensure that subsequent production meets the pass rate requirements.

[0108] Furthermore, the data processing unit 51 can establish hidden parameter fluctuation monitoring, taking the back EMF and resistance of the motor under test 6 as examples for monitoring. The data processing unit 51 has a standard deviation, which is S, and S=(((x1-x)^2+(x2-x)^2+...+(xn-x)^2) / (n-1)), where x is the average value of all sampled data, that is, x1, x2, x3, etc. can be multiple sets of measured back EMF or resistance.

[0109] The data processing unit 51 also has a process accuracy, which is Ca, and Ca = (XU) / (T / 2), where U is the specification center value, T is the specification tolerance, and T = USL - LSL, where USL is the specification upper limit, LSL is the specification lower limit, and the back EMF and resistance are respectively provided with standard values ​​and tolerances, that is, USL can be the upper limit value of the back EMF or resistance, and LSL can be the lower limit value of the back EMF or resistance.

[0110] Where Ca is used to measure the degree of deviation between the process mean and the specification center, U=(USL+LSL) / 2.

[0111] The data processing unit 51 also has a process precision, which is Cp, and Cp = T / 6σ, where σ is equivalent to S. Cp is used to measure the consistency of multiple sets of back EMF or resistance and the degree of data fluctuation.

[0112] The data processing unit 51 is also provided with a process capability index, which is Cpk, and Cpk = Cp(1-|Ca|). The back EMF and resistance of the motor under test 6 are respectively provided with standard values ​​and tolerances. Cpk is used to measure the degree of distribution between multiple sets of back EMF or resistance and the standard values.

[0113] The statistical period for actual production can be calculated weekly or monthly. A large number of back EMFs or resistors are sequentially processed through formulas for standard deviation, process accuracy, process precision, and process capability index to obtain the process precision Cp and process capability index Cpk of the back EMF. By default, Cp = 1. When Cp ≥ 1, it can be seen that the consistency of the measured back EMFs or resistors within their tolerance range is higher, and the data fluctuation is more stable. By default, Cpk = 1.33. When Cpk ≥ 1.33, it can be seen that the measured back EMFs are closer to their set center value, or the resistors are closer to their set center value. In this way, the better the fit, the less likely it is that multiple sets of data will fluctuate to the upper limit at the same time.

[0114] Therefore, through the AI ​​predictive monitoring established above, internal calculations can be performed on batch data corresponding to different parameters to effectively monitor the consistency and stability of the actual production process of the motor under test 6. When Cp < 1 or Cpk < 1.33, it can be confirmed that the process stability of the actual production process of the motor under test 6 is poor, and the control module 5 will automatically trigger alarms and warnings. Furthermore, by training the model using Cp or Cpk, the defect rate of other links, and the time distribution, the hidden layer weight coefficient X and the preset deviation value E are obtained for judgment. In this way, the current situation of fluctuations in personnel operations and insufficient equipment capacity can be solved, and a closed-loop prevention mechanism can be realized in advance, strengthening data traceability, improving quality indicators, and improving the quality of motor products, which can reduce user complaints and improve user experience.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A motor test line assembly, characterized in that, include: The main body of the conveyor line is used to carry and convey the motor to be tested; A performance testing device is located at the first testing station of the main body of the conveyor line. The performance testing device is adapted to be electrically connected to the motor under test for testing the operating performance of the motor under test. A noise testing device is located at the second testing station of the main body of the conveyor line to test the noise status of the motor under test. Appearance testing equipment, located at the third testing station of the main body of the conveyor line, is used to test the appearance of the motor under test. The control module is connected to the performance testing equipment, the noise testing equipment, and the appearance testing equipment. The control module is used to determine the pass / fail status of the motor under test based on the detected operating performance, noise status, and appearance status.

2. The motor test line assembly according to claim 1, characterized in that, The main body of the conveyor line is equipped with a limiting fixture, which is used to fix the motor under test.

3. The motor test line assembly according to claim 1, characterized in that, The main body of the conveyor line is equipped with an electrical connection fixture, which is used to selectively connect the motor under test to the performance testing equipment when the motor under test moves with the main body of the conveyor line to the first testing station, or to selectively connect the motor under test to the noise testing equipment when the motor under test moves with the main body of the conveyor line to the second testing station.

4. The motor test line assembly according to claim 1, characterized in that, The performance testing equipment includes a resistance testing device, an insulation withstand voltage tester, and an LCR tester. The resistance testing device is used to measure the resistance value of the motor under test. The insulation withstand voltage tester is used to measure the insulation resistance and withstand voltage of the motor under test. The LCR tester is used to measure the inductance and resistance of the motor under test. The resistance testing device, the insulation withstand voltage tester, and the LCR tester are adapted to be electrically connected to the motor under test, respectively.

5. The motor test line assembly according to claim 4, characterized in that, The performance testing equipment also includes a housing, and the resistance testing device, the insulation withstand voltage tester and the LCR tester are integrated and installed in the housing and are respectively connected to a first electrical connection part extending outside the housing. The first electrical connection part is used to electrically connect with the motor under test.

6. The motor test line assembly according to claim 1, characterized in that, The noise testing equipment includes an accelerometer and a spectrum analyzer. The noise testing equipment is provided with a second electrical connection part for electrical connection with the motor under test. The accelerometer is used to measure the amplitude state of the motor under test during operation. The accelerometer and the spectrum analyzer are communicatively connected to send the amplitude state to the spectrum analyzer. The spectrum analyzer is used to analyze the amplitude state.

7. The motor test line assembly according to claim 1, characterized in that, The appearance testing equipment is constructed with multiple inspection cameras, which are spaced apart and distributed at the third inspection station. The multiple inspection cameras are adapted to take pictures of the motor under test from different angles.

8. The motor test line assembly according to claim 1, characterized in that, The performance testing equipment, the noise testing equipment, and the appearance testing equipment are sequentially distributed along the conveying direction of the main body of the conveyor line; The performance testing device, the noise testing device, and the appearance testing device are located on the same side of the main body of the conveyor line, or at least two of the performance testing device, the noise testing device, and the appearance testing device are located on different sides of the main body of the conveyor line.

9. The motor test line assembly according to claim 1, characterized in that, The first inspection station, the second inspection station and the third inspection station are all provided with a non-conforming product unloading area, and the third inspection station is also provided with a conforming product unloading area; And / or, the first detection station, the second detection station and the third detection station are all equipped with a barcode scanner, which is used to identify and detect the motor under test, and the barcode scanner is electrically connected to the control module.

10. The motor test line assembly according to claim 1, characterized in that, The control module includes a data processing unit and a display panel. The data processing unit is communicatively connected to the performance testing equipment, the noise testing equipment, and the appearance testing equipment, respectively, and is electrically connected to the display panel. The display panel is used to display the test data of the data processing unit.

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