Performance detection device of motor controller and detection method thereof

Abstract

The application discloses a kind of electromagnetic compatibility detection equipment of motor controller and its detection method, including detection box A, detection box B, detection box C and detection box D, the top of detection box A is equipped with harmonic current tester, the top of detection box B is equipped with lightning surge tester, the top of detection box C is equipped with electric fast transient impulse group tester, the top of detection box D is equipped with damping oscillation wave tester, the detection equipment can simultaneously detect four motor controllers with different performance, using this kind of way to improve detection efficiency, only four detections are needed to complete the detection of four performances of four controllers, the detection equipment can see the current situation of motor controller control motor drive in real time, put the controller into practical application, whether the controller can be effectively excluded fault, the detection equipment uses four detection boxes, and will not be affected during detection, improve detection effect and accuracy.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic compatibility testing, specifically to an electromagnetic compatibility performance testing device and method for a motor controller. Background Technology

[0002] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate within its electromagnetic environment without causing unacceptable electromagnetic interference to any other equipment in that environment. Therefore, EMC requirements include two aspects: firstly, the electromagnetic interference generated by the device during normal operation must not exceed certain limits; secondly, the device must have a certain degree of immunity to electromagnetic interference present in its environment. Electromagnetic compatibility (EMC) is crucial, especially in motor controllers. While existing motor controllers undergo EMC performance testing during production, current testing equipment has several limitations: 1. It cannot simultaneously test four motor controllers for different performance characteristics, often only testing one controller at a time. This is inefficient, slow, and lacks flexibility. 2. It cannot provide real-time updates on the controller's motor drive operation, relying on single-function testing without considering practical applications, thus failing to rule out potential faults. 3. Existing EMC testing equipment is severely affected by environmental factors, impacting testing accuracy and making it inconvenient for users. Therefore, this paper presents an EMC performance testing device and method for motor controllers. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies of the prior art by providing an electromagnetic compatibility performance testing device and method for motor controllers, thereby resolving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an electromagnetic compatibility performance testing device for a motor controller, comprising testing box A, testing box B, testing box C, and testing box D. A harmonic current tester is mounted on the top of testing box A; a lightning surge tester is mounted on the top of testing box B; an electrical fast transient / burst tester is mounted on the top of testing box C; and a damped oscillation wave tester is mounted on the top of testing box D. Bases are mounted on both sides of the bottom of testing boxes A, B, C, and D. A hydraulic cylinder is installed inside each base. A testing box door is mounted at one end of each hydraulic cylinder. A motor controller testing board is mounted on one side of the testing box door. A first wiring board is installed on the top of the controller detection board, and a second wiring board is installed on the bottom of the motor controller detection board. A motor controller is provided on the motor controller detection board. A movable seat is connected to one side of the bottom of the detection box door. Slide rods are provided on both sides of the movable seat. A motor mounting seat is installed on the top of the movable seat. A motor is installed on the top of the motor mounting seat. Rollers are installed on the other side of the bottom of the detection box door. A control panel is installed on the middle of one side of each of the detection boxes A, B, C, and D. Viewing windows are installed on the top and bottom of the control panel. A hydraulic oil pump and a hydraulic oil tank are installed on one side of the bottom of the base. A sealing gasket is installed on the detection box door.

[0005] As a preferred embodiment of the present invention, the top four sides of the test boxes A, B, C, and D are all equipped with lighting plates by bolts, and the inner side of the base is provided with a sliding groove that matches the sliding rod.

[0006] As a preferred embodiment of the present invention, the detection boxes A, B, C and D are all fixedly connected to each other by bolts. The harmonic current tester is mounted on the top of the detection box A by bolts, the lightning surge tester is mounted on the top of the detection box B by bolts, the electrical fast transient burst tester is mounted on the top of the detection box C by bolts, and the damped oscillation wave tester is mounted on the top of the detection box D by bolts.

[0007] As a preferred embodiment of the present invention, the base is welded to the bottom of the test box A, test box B, test box C and test box D respectively. The hydraulic cylinder is installed inside the base by bolts. The hydraulic oil pump and the hydraulic oil tank are both installed on the bottom of the base by bolts. The hydraulic oil pump is connected to the hydraulic oil tank and the hydraulic cylinder respectively by hydraulic oil pipes.

[0008] As a preferred embodiment of the present invention, the slide rod is welded to both sides of the movable seat, the detection box door is welded to one end of the movable seat, the detection box door is fixedly connected to the hydraulic cylinder by bolts, the motor controller detection board is welded to the detection box door, and the sealing gasket is adhered to the detection box door.

[0009] As a preferred embodiment of the present invention, the movable seat is movably connected to the slide groove via a slide rod, the roller is bolted to the bottom of the test chamber door, the first terminal block and the second terminal block are both bolted to the test chamber door, the motor controller is electrically connected to the first terminal block, the first terminal block is electrically connected to the second terminal block, and the second terminal block is electrically connected to the motor.

[0010] As a preferred embodiment of the present invention, the viewing window and the control panel are respectively mounted on the detection boxes A, B, C and D by bolts. A glass plate is installed on the viewing window, and the support legs are welded to the bottom of the detection boxes A, B, C and D.

[0011] As a preferred embodiment of the present invention, the control panel is equipped with a control switch and a display screen. The control switch is electrically connected to the lighting board, the hydraulic oil pump and the first terminal block, respectively. The harmonic current tester, the lightning surge tester, the electrical fast transient burst tester and the damped oscillation wave tester are all electrically connected to the display screen.

[0012] A testing method for an electromagnetic compatibility performance testing device for a motor controller, comprising the following specific steps:

[0013] S1: Connect the power supply to the hydraulic oil pump through the control panel to make the hydraulic oil pump work to supply oil to the hydraulic cylinder, thereby opening the doors of the test boxes A, B, C and D.

[0014] S2: Place the four motor controllers sequentially on the motor controller test boards in test boxes A, B, C, and D, and connect them to the first wiring board. Then, use a hydraulic cylinder to close the test box doors.

[0015] S3: By turning on the power switches of the harmonic current tester, lightning surge tester, electric fast transient burst tester, and damped oscillation wave tester, the harmonic current tester, lightning surge tester, electric fast transient burst tester, and damped oscillation wave tester can test the different performance of the four motor controllers respectively.

[0016] S4: After the first performance test is completed, move the motor controller to the next position in clockwise order for a second test. Each motor controller needs to be tested a total of four times in this way. After the test is completed, replace it with another batch of four motor controllers for testing.

[0017] The beneficial effects of this invention are:

[0018] 1. This testing equipment can simultaneously test four motor controllers for different performance characteristics. This method improves testing efficiency, as only four tests are needed to complete the testing of four performance characteristics of the four controllers, which is several times more efficient than single testing.

[0019] 2. This testing equipment can monitor the real-time status of the motor controller controlling the motor drive. By putting the controller into practical applications, it can effectively eliminate whether the controller is faulty. When a problem occurs in the controller's control system, the testing can be stopped and the device returned to the factory for processing, thus saving testing time.

[0020] 3. The testing equipment uses four testing boxes, each of which is insulated from the others, so they will not affect each other during the testing process, which improves the testing effect and accuracy and makes it easier for people to operate and use.

[0021] 4. The testing equipment makes it very simple and convenient to replace and wire the motor controller. The replacement is done automatically by extending and resetting, and the wiring is done by plugging in, which improves the replacement efficiency and the overall testing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] In the diagram: Test box A1, Test box B2, Test box C3, Test box D4, Harmonic current tester 5, Lightning surge tester 6, Electrical fast transient / burst tester 7, Damped oscillating wave tester 8, Lighting board 9, Base 10, Hydraulic oil pump 11, Hydraulic oil tank 12, Control panel 13, Viewing window 14, Test box door 15, Motor controller test board 16, Sealing gasket 17, First terminal block 18, Second terminal block 19, Motor mounting base 20, Motor 21, Movable base 22, Motor controller 23, Slide groove 24, Hydraulic cylinder 25, Slide rod 26, Support leg 27, Roller 28. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0025] Example: Please refer to Figure 1This invention provides a technical solution: an electromagnetic compatibility performance testing device for a motor controller, comprising testing boxes A1, B2, C3, and D4. A harmonic current tester 5 is mounted on the top of testing box A1; a lightning surge tester 6 is mounted on the top of testing box B2; an electrical fast transient / burst tester 7 is mounted on the top of testing box C3; and a damped oscillation wave tester 8 is mounted on the top of testing box D4. Bases 10 are mounted on both sides of the bottom of testing boxes A1, B2, C3, and D4. A hydraulic cylinder 25 is installed inside each base 10. A testing box door 15 is mounted at one end of each hydraulic cylinder 25. A motor controller testing board 16 is mounted on one side of the testing box door 15. A motor controller testing board 16 is mounted on the top of the testing board 16. There is a first terminal block 18, and a second terminal block 19 is installed at the bottom of the motor controller detection board 16. The motor controller detection board 16 is equipped with a motor controller 23. A movable seat 22 is connected to one side of the bottom of the detection box door 15. Slide rods 26 are provided on both sides of the movable seat 22. A motor mounting seat 20 is installed on the top of the movable seat 22. A motor 21 is installed on the top of the motor mounting seat 20. A roller 28 is installed on the other side of the bottom of the detection box door 15. A control panel 13 is installed on the middle of one side of the detection boxes A1, B2, C3 and D4. A viewing window 14 is installed on the top and bottom of the control panel 13. A hydraulic oil pump 11 and a hydraulic oil tank 12 are installed on one side of the bottom of the base 10. A sealing gasket 17 is installed on the detection box door 15.

[0026] The top four sides of the test boxes A1, B2, C3 and D4 are all bolted with lighting plates 9. The inner side of the base 10 is provided with a sliding groove 24 that matches the sliding rod 26. The lighting plates 9 can illuminate the motor controller, making it easy for staff to observe directly.

[0027] Test boxes A1, B2, C3, and D4 are all fixedly connected to each other with bolts. Harmonic current tester 5 is bolted to the top of test box A1, lightning surge tester 6 is bolted to the top of test box B2, electrical fast transient / burst tester 7 is bolted to the top of test box C3, and damped oscillation wave tester 8 is bolted to the top of test box D4 for easy disassembly and replacement. Harmonic current tester 5, lightning surge tester 6, electrical fast transient / burst tester 7, and damped oscillation wave tester 8 are used to test different performance characteristics of the motor controller.

[0028] The base 10 is welded to the bottom of the test boxes A1, B2, C3 and D4 respectively. The hydraulic cylinder 25 is bolted to the inside of the base 10. The hydraulic oil pump 11 and the hydraulic oil tank 12 are bolted to the bottom of the base 10. The hydraulic oil pump 11 is connected to the hydraulic oil tank 12 and the hydraulic cylinder 25 respectively through hydraulic oil pipes. The hydraulic oil pump 11 is powered on to draw the hydraulic oil in the hydraulic oil tank into the hydraulic cylinder 25, thereby extending the motor controller test board 16, so that the operator can take out the motor controller from the motor controller test board 16.

[0029] The slide bar 26 is welded to both sides of the movable seat 22, the test box door 15 is welded to one end of the movable seat 22, the test box door 15 is fixedly connected to the hydraulic cylinder 25 by bolts, the motor controller test board 16 is welded to the test box door 15, and the sealing gasket 17 is adhered to the test box door 15. The sealing gasket 17 is used to improve the sealing performance and prevent the operation of various devices from affecting each other.

[0030] The movable seat 22 is movably connected to the slide groove 24 via the slide rod 26. The roller 28 is installed on the bottom of the test box door 15 by bolts. The first terminal block 18 and the second terminal block 19 are both installed on the test box door 15 by bolts. The motor controller 23 is electrically connected to the first terminal block 18, the first terminal block 18 is electrically connected to the second terminal block 19, and the second terminal block 19 is electrically connected to the motor 21. The motor controller 23 can be used to control the motor 21 to work, and the completeness of the control function of the motor controller 23 can be quickly determined, so as to carry out other performance tests.

[0031] The viewing window 14 and the control panel 13 are respectively bolted to the test boxes A1, B2, C3 and D4. A glass plate is installed on the viewing window 14, and the support leg 27 is welded to the bottom of the test boxes A1, B2, C3 and D4. The motor controller can be directly seen controlling the motor 21 to drive the motor.

[0032] The control panel 13 is equipped with a control switch and a display screen. The control switch is electrically connected to the lighting panel 9, the hydraulic pump 11, and the first terminal block 18. The harmonic current tester 5, the lightning surge tester 6, the electric fast transient / burst tester 7, and the damped oscillating wave tester 8 are all electrically connected to the display screen. The control switch is used to turn on the power to the lighting panel 9, the hydraulic pump 11, and the first terminal block 18, enabling them to operate. The harmonic current tester 5, the lightning surge tester 6, the electric fast transient / burst tester 7, and the damped oscillating wave tester 8 are connected to an external power source. The control switch directly controls the power supply to the harmonic current tester 5, the lightning surge tester 6, the electric fast transient / burst tester 7, and the damped oscillating wave tester 8. After the harmonic current tester 5, the lightning surge tester 6, the electric fast transient / burst tester 7, and the damped oscillating wave tester 8 are powered on, they transmit the detected information to the display screen.

[0033] A testing method for an electromagnetic compatibility performance testing device for a motor controller, comprising the following specific steps:

[0034] S1: Connect the power supply to the hydraulic oil pump 11 and the lighting board 9 via the control switch on the control panel 13, so that the hydraulic oil pump 11 works to supply oil to the hydraulic cylinder 25, thereby opening the test box doors 15 on test boxes A1, B2, C3 and D4, and allowing the motor controller test board 16 on the test box door 15 to extend out from the test boxes A1, B2, C3 and D4 in sequence;

[0035] S2: Place the four motor controllers 23 sequentially on the motor controller detection boards 16 in the detection boxes A1, B2, C3 and D4, and connect them to the first wiring board 18 by plugging them in. Then, use the hydraulic oil pump 11 to pump the hydraulic oil in the hydraulic cylinder 25 into the hydraulic oil tank, thereby retracting the motor controller detection board 16 on the detection box door 15 into the detection box and sealing it with the sealing gasket 17.

[0036] S3: Power on the first terminal block 18 is turned on via the control switch on the control panel 13, allowing the motor controller 23 to transmit control signals to the motor 21 through the first terminal block 18 and the second terminal block 19, controlling the motor 21 to work. The overall control status can be seen intuitively through the viewing window 14. The viewing window 14 has two windows, one at the top and one at the bottom. The upper viewing window 14 shows the motor controller, and the lower viewing window 14 shows the motor. Then, power on the harmonic current tester 5, lightning surge tester 6, electric fast transient burst tester 7, and damped oscillation wave tester 8 is turned on via the control switch on each test box, allowing the harmonic current tester 5, lightning surge tester 6, electric fast transient burst tester 7, and damped oscillation wave tester 8 to test the different performance of the four motor controllers respectively.

[0037] S4: After the first performance test is completed, the hydraulic cylinder 25 is used to extend the four motor controller test boards 16 again. The motor controllers on the motor controller test boards 16 are moved to the next position in clockwise order and wired. Then, a second test is performed. Each motor controller needs to be tested four times in this way. After the test is completed, another batch of four motor controllers can be replaced for testing. The harmonic current tester 5, lightning surge tester 6, electrical fast transient burst tester 7, and damped oscillation wave tester 8 can transmit the information of each test to the display screen of the control panel 13 for easy viewing by the staff.

[0038] This testing equipment can simultaneously test four motor controllers for different performance characteristics. This method significantly improves testing efficiency, requiring only four tests to complete the testing of four controllers' four performance characteristics, several times more efficient than single-testing. The equipment provides real-time monitoring of the motor controllers' motor drive status, allowing for effective troubleshooting of controllers in practical applications. If a problem is found with the controller's control system, testing can be stopped and the controller returned to the factory for repair, saving testing time. The equipment uses four insulated testing boxes, ensuring no interference between them during testing, improving testing effectiveness and accuracy, and simplifying operation. Replacing and wiring the motor controllers is extremely simple and convenient. Replacement utilizes fully automatic extension and reset, while wiring employs a plug-in method, improving replacement efficiency and overall testing efficiency.

[0039] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. An electromagnetic compatibility performance testing device for a motor controller, comprising testing box A (1), testing box B (2), testing box C (3), and testing box D (4), characterized in that: The top of the detection box A (1) is equipped with a harmonic current tester (5), the top of the detection box B (2) is equipped with a lightning surge tester (6), the top of the detection box C (3) is equipped with an electrical fast transient burst tester (7), and the top of the detection box D (4) is equipped with a damped oscillation wave tester (8). Bases (10) are installed on both sides of the bottom of the detection boxes A (1), B (2), C (3), and D (4). A hydraulic cylinder (25) is installed inside each base (10). A detection box door (15) is installed at one end of each hydraulic cylinder (25). A motor controller detection board (16) is installed on one side of the detection box door (15). A first wiring board (18) is installed on the top of the motor controller detection board (16), and a second wiring board (19) is installed on the bottom of the motor controller detection board (16). 9) The motor controller detection board (16) is equipped with a motor controller (23). A movable seat (22) is connected to the bottom side of the detection box door (15). A sliding rod (26) is provided on both sides of the movable seat (22). A motor mounting seat (20) is installed on the top of the movable seat (22). A motor (21) is installed on the top of the motor mounting seat (20). A roller (28) is installed on the other side of the bottom of the detection box door (15). A control panel (13) is installed on the middle of one side of the detection box A (1), detection box B (2), detection box C (3) and detection box D (4). A viewing window (14) is installed on the top and bottom of the control panel (13). A hydraulic oil pump (11) and a hydraulic oil tank (12) are installed on one side of the bottom of the base (10). A sealing gasket (17) is installed on the detection box door (15).

2. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The top four sides of the test boxes A (1), B (2), C (3), and D (4) are all fitted with lighting plates (9) by bolts. The inner side of the base (10) is provided with a sliding groove (24) that matches the sliding rod (26).

3. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The detection boxes A (1), B (2), C (3) and D (4) are all fixedly connected to each other by bolts. The harmonic current tester (5) is installed on the top of the detection box A (1) by bolts. The lightning surge tester (6) is installed on the top of the detection box B (2) by bolts. The electrical fast transient burst tester (7) is installed on the top of the detection box C (3) by bolts. The damped oscillation wave tester (8) is installed on the top of the detection box D (4) by bolts.

4. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The base (10) is welded to the bottom of the test box A (1), test box B (2), test box C (3) and test box D (4) respectively. The hydraulic cylinder (25) is installed inside the base (10) by bolts. The hydraulic oil pump (11) and the hydraulic oil tank (12) are both installed on the bottom of the base (10) by bolts. The hydraulic oil pump (11) is connected to the hydraulic oil tank (12) and the hydraulic cylinder (25) respectively through hydraulic oil pipes.

5. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The slide bar (26) is welded to both sides of the movable seat (22), the detection box door (15) is welded to one end of the movable seat (22), the detection box door (15) is fixedly connected to the hydraulic cylinder (25) by bolts, the motor controller detection board (16) is welded to the detection box door (15), and the sealing gasket (17) is bonded to the detection box door (15).

6. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The movable seat (22) is movably connected to the slide groove (24) via the slide rod (26). The roller (28) is bolted to the bottom of the test box door (15). The first terminal block (18) and the second terminal block (19) are both bolted to the test box door (15). The motor controller (23) is electrically connected to the first terminal block (18). The first terminal block (18) is electrically connected to the second terminal block (19). The second terminal block (19) is electrically connected to the motor (21).

7. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The viewing window (14) and control panel (13) are respectively installed on the detection box A (1), detection box B (2), detection box C (3) and detection box D (4) by bolts. A glass plate is installed on the viewing window (14), and the support leg (27) is welded to the bottom of the detection box A (1), detection box B (2), detection box C (3) and detection box D (4).

8. The electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The control panel (13) is equipped with a control switch and a display screen. The control switch is electrically connected to the lighting board (9), the hydraulic oil pump (11) and the first terminal block (18) respectively. The harmonic current tester (5), the lightning surge tester (6), the electric fast transient burst tester (7) and the damped oscillation wave tester (8) are all electrically connected to the display screen.

9. The testing method of the electromagnetic compatibility performance testing device for a motor controller according to claim 1, characterized in that: The specific steps are as follows: S1: Connect the power supply of the hydraulic oil pump (11) through the control panel (13) to make the hydraulic oil pump (11) work to supply oil to the hydraulic cylinder (25), thereby opening the test box doors (15) on test box A (1), test box B (2), test box C (3) and test box D (4); S2: Place the four motor controllers (23) on the motor controller detection board (16) in the detection boxes A (1), B (2), C (3) and D (4) in sequence, and connect them to the first wiring board (18). Then use the hydraulic cylinder (25) to close the detection box door (15). S3: By turning on the power switches of the harmonic current tester (5), lightning surge tester (6), electric fast transient burst tester (7) and damped oscillation tester (8), the harmonic current tester (5), lightning surge tester (6), electric fast transient burst tester (7) and damped oscillation tester (8) respectively test the different performance of the four motor controllers; S4: After the first performance test is completed, move the motor controller to the next position in clockwise order for a second test. Each motor controller needs to be tested a total of four times in this way. After the test is completed, replace it with another batch of four motor controllers for testing.

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