IPM module voltage testing mechanism
By designing the voltage testing mechanism of the automated IPM module and adopting mechanical structure and electrical control system, fast and accurate voltage testing is achieved, solving the problems of inefficiency of traditional testing methods and the influence of human factors, and is suitable for large-scale production.
Patent Information
- Application Number
- CN202421479230.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The traditional IPM module voltage testing method is inefficient and susceptible to human factors, the test results are inaccurate, the equipment structure is complex and cumbersome, and it is not suitable for large-scale production.
Design an IPM module voltage testing mechanism, adopts automated testing method, and achieves fast and accurate DC and AC voltage testing through precise mechanical structures and electrical control systems, including test benches, calibration devices and multiple voltage testing departments, ensuring the precise positioning and calibration of the test workpiece.
It improves testing efficiency, reduces human error, is simple and convenient to operate, is suitable for large-scale production, and the accuracy and reliability of test results are guaranteed.
Smart Images
Figure CN223284276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial automation, in particular to an IPM module voltage testing mechanism. Background Art
[0002] With the continuous development of power electronics technology, the performance and quality stability of IPM modules, as key components of power control, are crucial to the operation of the entire power electronics system. Therefore, accurate and efficient voltage testing of IPM modules has become a research focus within the industry.
[0003] Traditional IPM module voltage testing methods typically rely on manual or semi-automatic methods. This approach is not only inefficient but also susceptible to human influence, resulting in uncertainties in the accuracy and reliability of test results. Furthermore, traditional testing equipment is often complex and cumbersome to operate, making it unsuitable for large-scale production and testing.
[0004] Therefore, the present invention proposes an IPM module voltage testing mechanism to solve the above technical problems. Utility Model Content
[0005] The purpose of the present invention is to solve the above-mentioned technical problems and provide an IPM module voltage testing mechanism. The present invention adopts an automated testing method and realizes fast and accurate testing of the IPM module through a precise mechanical structure and electrical control system. It not only improves the test efficiency and reduces the interference of human factors, but also has a simple structure and easy operation, and is suitable for large-scale production and testing.
[0006] The technical solution adopted by the present invention to solve the above technical problems is: an IPM module voltage testing mechanism, including a test bench, a calibration device and a test device, the test device including a test station, a first voltage test part, a second voltage test part and a third voltage test part, the first voltage test part and the second voltage test part are respectively installed on the left and right sides of the test station, and the third voltage test part is installed behind the test station, the first voltage test part, the second voltage test part and the third voltage test part are all fixedly installed on the test bench, the calibration device is installed on the test bench, and the calibration device is arranged around the test station.
[0007] Preferably, the first voltage test unit includes a first DC test cylinder and a first DC interface, the first DC test cylinder is installed on the left side of the test station, the cylinder direction of the first DC test cylinder is facing the test station, and the first DC interface is arranged at the tail of the first DC test cylinder;
[0008] The second voltage test unit includes a second DC test cylinder and a second DC interface, the second DC test cylinder is installed on the right side of the test station, the cylinder direction of the second DC test cylinder is toward the test station, and the second DC interface is arranged at the tail of the second DC test cylinder;
[0009] The third voltage testing part includes a third AC test cylinder and a third AC interface. The third AC test cylinder is installed behind the test station, the cylinder direction of the third AC test cylinder is facing the test station, and the third AC interface is arranged on the top of the third AC test cylinder.
[0010] Preferably, the third voltage testing unit further includes a third vertical cylinder, the third vertical cylinder is installed above the third AC test cylinder, and the third AC interface is installed on the third vertical cylinder.
[0011] Preferably, the first DC test cylinder is provided with a first push block and a first pin connection board, the first pin connection board is mounted on the head of the first push block, the first push block is connected to the first DC test cylinder, and the first pin connection board is flush with the height of the test station;
[0012] The second DC test cylinder is provided with a second push block and a second pin connection board, the second pin connection board is installed on the head of the second push block, the second push block is connected to the second DC test cylinder, and the second pin connection board is flush with the height of the test station.
[0013] Preferably, the third voltage testing unit further includes a testing block, which is mounted on the head of the third vertical cylinder. The testing block is moved to the workpiece to be tested by the third vertical cylinder to perform AC testing.
[0014] Preferably, the third AC test cylinder includes a third push block, a third movable rail and a third pushing cylinder. The third push block is powered by the third pushing cylinder to move on the third movable rail, and the third vertical cylinder is installed on the third push block.
[0015] Preferably, the third vertical cylinder further includes a third vertical track and a third vertical plate. The third vertical plate is pushed by the third vertical cylinder to move on the third vertical track, and the test block is mounted on the third vertical plate.
[0016] Preferably, the test bench includes a test base plate, a mounting plate and a raising column, the four corners of the mounting plate are connected to the test base plate through the raising columns, and the first DC test cylinder and the second DC test cylinder are both mounted on the mounting plate.
[0017] Preferably, both the front and rear sides of the mounting plate are provided with compression stabilizers, and the bottoms of the compression stabilizers are connected to the test base plate.
[0018] Preferably, the calibration device includes a plurality of calibration cameras, which are distributed around the test station and mounted on a mounting plate.
[0019] The beneficial effects of the utility model are:
[0020] 1. This utility model realizes comprehensive testing of the DC and AC voltages of the IPM module by designing the first, second, and third voltage test sections. At the same time, the setting of the calibration device can ensure the precise positioning and calibration of the test workpiece, improving the accuracy of the test. The structural design of the test bench ensures the stability and reliability of the entire test mechanism.
[0021] 2. The structural design of the test bench is stable and reliable. The setting of the calibration device can ensure the precise positioning and calibration of the test workpiece, thereby improving the stability and reliability of the test. This improvement in stability and reliability helps to reduce the failure rate during the test process and improve production efficiency;
[0022] 3. The utility model adopts an automated testing method, which avoids the human errors and low efficiency problems that may occur in traditional manual or semi-automatic testing methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the overall structure of the other side of the utility model;
[0025] Figure 3 It is a structural diagram of the third voltage testing unit of the present utility model;
[0026] Figure 4 It is a structural schematic diagram of the testing device of the present utility model.
[0027] In the figure: 1. test bench, 11. test base plate, 12. mounting plate, 121. clamping stabilizer, 13. raising column, 2. calibration device, 3. testing device, 31. testing station, 32. first voltage testing part, 321. first DC test cylinder, 3211. first push block, 3212. first pin connection board, 322. first DC interface, 33. second voltage testing part, 331. second DC test cylinder, 3311. second push block, 3312. second pin connection board, 332. second DC interface, 34. third voltage testing part, 341. third AC test cylinder, 3411. third push block, 3412. third moving rail, 3413. third pushing cylinder, 342. third AC interface, 343. third vertical cylinder, 3431. third vertical rail, 3432. third vertical plate, 344. test block. DETAILED DESCRIPTION
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] like Figure 1-4 As shown, the utility model provides an IPM module voltage testing mechanism, including a test bench 1, a calibration device 2 and a test device 3. The test device 3 includes a test station 31, a first voltage test part 32, a second voltage test part 33 and a third voltage test part 34. The first voltage test part 32 and the second voltage test part 33 are respectively installed on the left and right sides of the test station 31, and the third voltage test part 34 is installed at the rear of the test station 31. The first voltage test part 32, the second voltage test part 33 and the third voltage test part 34 are all fixedly installed on the test bench 1, the calibration device 2 is installed on the test bench 1, and the calibration device 2 is arranged around the test station 31.
[0030] By adopting the above technical solution, the first voltage testing section 32 and the second voltage testing section 33 are suitable for DC voltage testing, while the third voltage testing section 34 is used for AC voltage testing, so that the testing organization can meet different types of voltage testing requirements and has versatility. By arranging the calibration device 2 around the test station 31, the test station can be accurately calibrated before testing to ensure the accuracy and reliability of the test results.
[0031] The first voltage test unit 32 includes a first DC test cylinder 321 and a first DC interface 322. The first DC test cylinder 321 is installed on the left side of the test station 31, with the cylinder direction of the first DC test cylinder 321 facing the test station 31. The first DC interface 322 is arranged at the rear of the first DC test cylinder 321.
[0032] The second voltage test unit 33 includes a second DC test cylinder 331 and a second DC interface 332. The second DC test cylinder 331 is installed on the right side of the test station 31, with the cylinder direction of the second DC test cylinder 331 facing the test station 31. The second DC interface 332 is provided at the rear of the second DC test cylinder 331.
[0033] The third voltage testing part 34 includes a third AC test cylinder 341 and a third AC interface 342. The third AC test cylinder 341 is installed behind the test station 31. The cylinder direction of the third AC test cylinder 341 is toward the test station 31. The third AC interface 342 is set at the top of the third AC test cylinder 341.
[0034] By adopting the above-mentioned technical solution, the design of the first voltage testing part 32 and the second voltage testing part 33 ensures the accuracy of the DC voltage test. Through the precise control of the first DC test cylinder 321 and the second DC test cylinder 331, it can ensure that the contact points of the first DC interface 322 and the second DC interface 332 with the IPM module are precisely aligned, thereby performing accurate voltage measurement. The design of the third voltage testing part 34 provides an AC voltage testing function. The third AC test cylinder 341 ensures that the third AC interface 342 can be precisely aligned with the AC interface of the IPM module, thereby performing accurate AC voltage testing.
[0035] The third voltage testing unit 34 further includes a third vertical cylinder 343 . The third vertical cylinder 343 is installed above the third AC testing cylinder 341 . The third AC interface 342 is installed on the third vertical cylinder 343 .
[0036] By adopting the above technical solution, the introduction of the third vertical cylinder 343 enables the third AC interface 342 to be precisely moved and adjusted in the vertical direction, increasing the flexibility during the test process and ensuring that the third AC interface 342 can be accurately aligned with the AC interface on the IPM module.
[0037] The first DC test cylinder 321 is provided with a first push block 3211 and a first pin connection board 3212. The first pin connection board 3212 is installed at the head of the first push block 3211. The first push block 3211 is connected to the first DC test cylinder 321. The first pin connection board 3212 is flush with the height of the test station 31.
[0038] The second DC test cylinder 331 is provided with a second push block 3311 and a second pin connection board 3312. The second pin connection board 3312 is installed on the head of the second push block 3311. The second push block 3311 is connected to the second DC test cylinder 331. The second pin connection board 3312 is flush with the height of the test station 31.
[0039] By adopting the above technical solution, since the first pin connection plate 3212 and the second pin connection plate 3312 are flush with the height of the test station 31, when the first DC test cylinder 321 and the second DC test cylinder 331 are working, they can accurately push the pin connection plates to the test points of the IPM module, ensuring good contact between the test pins and the test points, thereby obtaining accurate test results.
[0040] The third voltage testing unit 34 further includes a testing block 344 . The testing block 344 is mounted on the head of the third vertical cylinder 343 . The testing block 344 is moved to the workpiece to be tested by the third vertical cylinder 343 to perform AC testing.
[0041] The third AC test cylinder 341 includes a third push block 3411, a third movable rail 3412 and a third pushing cylinder 3413. The third push block 3411 is powered by the third pushing cylinder 3413 to move on the third movable rail 3412. The third vertical cylinder 343 is installed on the third push block 3411.
[0042] By adopting the above-mentioned technical solution, the third push block 3411 can move on the third movable rail 3412, powered by the third pushing cylinder 3413, and the test block 344 can flexibly adjust its position in the horizontal direction. Combined with the guidance of the third movable rail 3412 and the push of the third pushing cylinder 3413, precise control of the position of the test block 344 can be achieved.
[0043] The third vertical cylinder 343 further includes a third vertical rail 3431 and a third vertical plate 3432 . The third vertical plate 3432 is pushed by the third vertical cylinder 343 to move on the third vertical rail 3431 . The test block 344 is mounted on the third vertical plate 3432 .
[0044] By adopting the above technical solution, the third vertical rail 3431 not only provides a precise moving path, but also provides stable support for the movement of the third vertical plate 3432, reducing shaking and vibration during the test, thereby enhancing the stability of the test.
[0045] The test bench 1 includes a test base plate 11, a mounting plate 12 and a raising column 13. The four corners of the mounting plate 12 are connected to the test base plate 11 through the raising columns 13. The first DC test cylinder 321 and the second DC test cylinder 331 are both installed on the mounting plate 12.
[0046] By adopting the above technical solution, the mounting plate 12 is connected to the test base plate 11 through the raising columns 13 at the four corners, so that the structure of the entire test bench is stable and can withstand various forces and vibrations generated during the test. The introduction of the raising columns 13 also allows the height of the mounting plate 12 to be flexibly adjusted to adapt to test scenarios with different height requirements.
[0047] Compression stabilizers 121 are provided on both the front and rear sides of the mounting plate 12 , and the bottoms of the compression stabilizers 121 are connected to the test base plate 11 .
[0048] By adopting the above technical solution, the pressing stabilizer 121 can effectively and firmly press the mounting plate 12 onto the test base plate 11 , thereby enhancing the structural stability of the entire test bench.
[0049] The calibration device 2 includes a plurality of calibration cameras, which are distributed around the test station 31 and mounted on the mounting plate 12 .
[0050] During the specific implementation of the present invention, first, ensure that the test bench 1 is firmly installed, and the test base plate 11, the mounting plate 12, the raising column 13 and other components are firmly connected. Then, the calibration camera of the calibration device 2 is installed on the mounting plate 12, ensuring that the calibration camera is evenly distributed and can fully observe the surroundings of the test station 31. Then, install the test device 3, including the first voltage test part 32, the second voltage test part 33 and the third voltage test part 34, and ensure that each component is correctly and firmly connected.
[0051] The IPM module to be tested is placed on the test station 31 by a robot, and the pressing stabilizer 121 at this time will ensure the stability of the mounting plate 12 during the test process.
[0052] Start the test program and control the first DC test cylinder 321 and the second DC test cylinder 331 to move. These two cylinders will push their respective first push blocks 3211 and second push blocks 3311 forward, so that the first pin connection board 3212 and the second pin connection board 3312 contact the pins of the IPM module, thereby completing the DC voltage test. During this process, the test system will record the relevant voltage data.
[0053] After completing the DC voltage test, the second DC test cylinder 331 is controlled to retract, so that the second pin terminal board 3312 is disconnected from the pin of the IPM module. At the same time, the third AC test cylinder 341 starts to move, and the third push cylinder 3413 pushes the third push block 3411 to move on the third moving track 3412, so that the test block 344 moves to the appropriate position.
[0054] Then the third vertical cylinder 343 is actuated to push the third vertical plate 3432 to move on the third vertical track 3431, so that the test block 344 is docked with the corresponding interface of the IPM module to complete the AC voltage test. The test system will record the relevant data of the AC voltage.
[0055] During the test, the test system will record and save all test data in real time. After the test is completed, the data will be used to analyze the performance and stability of the IPM module. At the same time, the robot will take the tested IPM module out of the test station 31 again and prepare for the test of the next module.
[0056] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in detail.
[0057] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An IPM module voltage testing mechanism, characterized by: The invention comprises a test bench (1), a calibration device (2) and a test device (3); the test device (3) comprises a test station (31), a first voltage test section (32), a second voltage test section (33) and a third voltage test section (34); the first voltage test section (32) and the second voltage test section (33) are respectively installed on the left and right sides of the test station (31); the third voltage test section (34) is installed behind the test station (31); the first voltage test section (32), the second voltage test section (33) and the third voltage test section (34) are all fixedly installed on the test bench (1); the calibration device (2) is installed on the test bench (1); and the calibration device (2) is arranged around the test station (31).
2. The IPM module voltage testing mechanism according to claim 1, characterized in that: The first voltage testing unit (32) comprises a first DC test cylinder (321) and a first DC interface (322); the first DC test cylinder (321) is installed on the left side of the test station (31); the cylinder direction of the first DC test cylinder (321) faces the test station (31); and the first DC interface (322) is arranged at the tail of the first DC test cylinder (321); The second voltage test part (33) comprises a second DC test cylinder (331) and a second DC interface (332), the second DC test cylinder (331) being installed on the right side of the test station (31), the cylinder direction of the second DC test cylinder (331) facing the test station (31), and the second DC interface (332) being arranged at the tail of the second DC test cylinder (331); The third voltage testing unit (34) comprises a third AC test cylinder (341) and a third AC interface (342); the third AC test cylinder (341) is installed behind the test station (31); the cylinder direction of the third AC test cylinder (341) faces the test station (31); and the third AC interface (342) is arranged on the top of the third AC test cylinder (341).
3. The IPM module voltage testing mechanism according to claim 2, characterized in that: The third voltage testing unit (34) further comprises a third vertical cylinder (343), the third vertical cylinder (343) being installed above the third AC testing cylinder (341), and the third AC interface (342) being installed on the third vertical cylinder (343).
4. The IPM module voltage testing mechanism according to claim 2, characterized in that: The first DC test cylinder (321) is provided with a first push block (3211) and a first pin connection board (3212); the first pin connection board (3212) is installed on the head of the first push block (3211); the first push block (3211) is connected to the first DC test cylinder (321); and the first pin connection board (3212) is flush with the height of the test station (31); The second DC test cylinder (331) is provided with a second push block (3311) and a second pin connection board (3312). The second pin connection board (3312) is installed on the head of the second push block (3311). The second push block (3311) is connected to the second DC test cylinder (331). The second pin connection board (3312) is flush with the height of the test station (31).
5. The IPM module voltage testing mechanism according to claim 3, characterized in that: The third voltage testing unit (34) further includes a testing block (344), which is mounted on the head of the third vertical cylinder (343). The testing block (344) is moved to the workpiece to be tested by the third vertical cylinder (343) to perform an AC test.
6. The IPM module voltage testing mechanism according to claim 3, characterized in that: The third AC test cylinder (341) includes a third push block (3411), a third movable track (3412) and a third propulsion cylinder (3413). The third push block (3411) is powered by the third propulsion cylinder (3413) to move on the third movable track (3412). The third vertical cylinder (343) is installed on the third push block (3411).
7. The IPM module voltage testing mechanism according to claim 3, characterized in that: The third vertical cylinder (343) further comprises a third vertical track (3431) and a third vertical plate (3432). The third vertical plate (3432) is pushed by the third vertical cylinder (343) to move on the third vertical track (3431). The test block (344) is mounted on the third vertical plate (3432).
8. The IPM module voltage testing mechanism according to claim 2, characterized in that: The test bench (1) comprises a test base plate (11), a mounting plate (12) and a heightening column (13); the four corners of the mounting plate (12) are connected to the test base plate (11) via the heightening columns (13); and the first DC test cylinder (321) and the second DC test cylinder (331) are both mounted on the mounting plate (12).
9. The IPM module voltage testing mechanism according to claim 8, characterized in that: The front and rear sides of the mounting plate (12) are both provided with a compression stabilizer (121), and the bottom of the compression stabilizer (121) is connected to the test base plate (11).
10. The IPM module voltage testing mechanism according to claim 8, characterized in that: The calibration device (2) includes a plurality of calibration cameras, which are distributed around the test station (31) and are mounted on a mounting plate (12).