A test platform

Abstract

The present application relates to a test platform, which is applied in the field of inverters, and includes a base, a connection unit is rotatably connected to the base, a placement rack is provided on the connection unit, a test device is arranged on the placement rack, and an inverter to be tested is arranged on the base. The technical effect of the present application is that when the inverter needs to be tested, the operator places the inverter to be tested on the base, places the test device on the placement rack, adjusts the angle of the connection unit relative to the base, and thus adjusts the position of the placement rack. The operator does not need to move the inverter multiple times to continuously adjust the position. The position flexibility of the test device is greater, and it is convenient to test inverters of different models, and has a wide range of applications.

Description

Technical Field

[0001] The present application relates to the technical field of inverters, and in particular to a testing platform. Background Art

[0002] An inverter is a power electronic device whose main function is to convert direct current into alternating current. It is usually composed of an inverter bridge, control logic and filter circuit. It converts the electrical energy of a DC power source into alternating current by turning on and off semiconductor switches. Inverters are widely used in various fields, such as electric vehicles, wind power generation systems, solar power generation systems, etc.

[0003] Inverter testing is an important part of evaluating inverter performance and reliability. The output waveform of the inverter can be observed and judged using test equipment such as an oscilloscope. The existing inverter test bench uses a fixed platform, and the operator places the inverter to be tested and the test equipment on the fixed platform for testing.

[0004] Since the test port positions of different types of inverters are different, the placement position of the test device is fixed and the line length of the test device is limited, the inverter needs to be manually moved to adjust the placement direction and angle of the inverter on the fixed platform for testing. During use, the above-mentioned fixed platform is time-consuming and labor-intensive, and results in low testing efficiency. Summary of the invention

[0005] In order to help solve the problem that, during the testing process of the existing fixed platform, the position of the inverter needs to be manually moved and adjusted to adapt to the testing device, which is time-consuming and labor-intensive and leads to low testing efficiency, a testing platform provided in the present application adopts the following technical solution: it includes a base, a connecting unit is rotatably connected to the base, a placement rack is provided on the connecting unit, the testing device is arranged on the placement rack, and the inverter to be tested is arranged on the base.

[0006] Through the above technical solution, when the inverter needs to be tested, the operator places the inverter to be tested on the base, places the test device on the placement rack, and adjusts the angle of the connection unit relative to the base, thereby adjusting the position of the placement rack. The operator does not need to move the inverter multiple times to adjust the position, which saves time and effort. The position of the test device is more flexible and convenient for testing inverters of different models, and has a wide range of applications.

[0007] In a specific possible implementation scheme, the connecting unit includes a connecting seat arranged on the base, a fixing sleeve is provided on the surface of the connecting seat facing away from the base, a connecting shaft is rotatably connected to the fixing sleeve, the placement frame is arranged on the connecting shaft and rotatably connected to the connecting shaft, a first fixing component is provided on the fixing sleeve for fixing the angle of the connecting shaft relative to the fixing sleeve, and a second fixing component is provided on the connecting shaft for fixing the angle of the placement frame relative to the connecting shaft.

[0008] Through the above technical solution, the angle of the connecting axis relative to the base can be adjusted, and the angle of the placement rack relative to the connecting axis can also be adjusted. The multi-angle adjustment method further enhances the adjustable range of the placement rack angle, and the inverter can be tested in all directions.

[0009] In a specific implementation scheme, the first fixing assembly includes a first fixing screw rod that passes through and is threadedly connected to the fixing sleeve, and one end of the first fixing screw rod that faces the connecting shaft is tightly pressed against the connecting shaft.

[0010] Through the above technical solution, when the connecting shaft rotates to a suitable angle relative to the fixing sleeve, the operator rotates the first fixing screw so that the first fixing screw is pressed against the connecting shaft toward one end of the connecting shaft to fix the rotation angle of the connecting shaft.

[0011] In a specific implementation scheme, the second fixing component includes a connecting sleeve rotatably connected to the connecting shaft, the placement frame is arranged on the connecting sleeve, and a second fixing screw is passed through and threadedly connected to the connecting sleeve, and the second fixing screw is pressed against the connecting shaft at one end facing the connecting shaft.

[0012] Through the above technical solution, when the connecting sleeve is rotated to a suitable angle relative to the connecting shaft, the operator rotates the second fixed screw so that the second fixed screw is pressed against the connecting shaft at one end toward the connecting shaft, thereby fixing the rotation angle of the connecting sleeve and adjusting and fixing the angle of the placement rack.

[0013] In a specific possible implementation mode, a support plate is provided between the connecting shaft and the placement frame.

[0014] Through the above technical solution, the support plate plays a supporting role between the connecting shaft and the placement rack, thereby improving the stability of the test device placed on the placement rack.

[0015] In a specific possible implementation scheme, a plurality of vertical rods are provided on the surface of the base facing away from the connection unit, a first placement plate and a plurality of second placement plates are provided between the plurality of vertical rods, and the plurality of second placement plates are all located between the base and the first placement plate.

[0016] Through the above technical solution, a frame is formed between the first placement plate, the second placement plate and the vertical rod, which provides support for the base. At the same time, other test tools can be placed on the first placement plate and the second placement plate to facilitate the storage of other test tools.

[0017] In a specific feasible implementation scheme, a plurality of first adjustment holes are respectively opened on the plurality of vertical rods, and adjustment bolts are passed through the first adjustment holes, and the outer edges of the adjustment bolts are threadedly connected with adjustment nuts matching the adjustment bolts, and an adjustment plate is provided on the second placement plate, and a second adjustment hole is opened on the adjustment plate, and the adjustment bolts are passed through one of the first adjustment holes and the second adjustment hole in sequence, and the adjustment plate is pressed tightly between the adjustment nut and the vertical rods.

[0018] Through the above technical solution, when the position of the second placement plate needs to be adjusted, a plurality of first adjustment holes are opened on the vertical rod. The operator can select the first adjustment hole of the appropriate height according to actual needs, and use the adjusting bolt to bolt the second placement plate to the vertical rod to adjust the height of the second placement plate. Tools of different heights or models can be placed on the second placement plate, which is more flexible.

[0019] In a specific possible implementation mode, a plurality of reinforcing plates are provided on the vertical rod.

[0020] Through the above technical solution, the reinforcing plate enhances the strength of the vertical rod and improves the supporting performance of the vertical plate, thereby further improving the stability of the overall test platform.

[0021] In a specific possible implementation manner, the first placement plate and the plurality of second placement plates are provided with reinforcing ribs on their surfaces facing away from the base.

[0022] Through the above technical solution, the reinforcing ribs further improve the stability of the first placement plate and the plurality of second placement plates, and improve the strength and rigidity of the first placement plate and the plurality of second placement plates.

[0023] In a specific possible implementation manner, a plurality of universal wheels are provided on the surface of the first placement plate facing away from the base.

[0024] Through the above technical solution, the universal wheels enable the test platform to move freely in all directions. When the inverter to be tested is too large or heavy, the operator can move the test platform as a whole without moving the inverter, thereby improving the convenience of inverter testing.

[0025] To summarize, the present application has the following beneficial technical effects: when the inverter needs to be tested, the operator places the inverter to be tested on the base, places the test device on the placement rack, adjusts the angle of the connecting unit relative to the base, and thereby adjusts the position of the placement rack. The operator does not need to move the inverter multiple times to adjust the position. The position of the test device is more flexible and convenient for testing inverters of different models, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the adjustment plate used to reflect the embodiment of the present application.

[0028] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0029] Figure numerals: 1. base; 2. inverter; 3. placement rack; 4. testing device; 5. connection unit; 6. connection seat; 7. fixing sleeve; 8. connecting shaft; 9. first fixing screw; 10. connecting sleeve; 11. second fixing screw; 12. support plate; 13. vertical rod; 14. first placement plate; 15. second placement plate; 16. first adjustment hole; 17. adjustment bolt; 18. adjustment plate; 19. adjustment nut; 20. reinforcement plate; 21. reinforcement rib; 22. universal wheel; 23. handle; 24. fixing knob. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] An embodiment of the present application discloses a testing platform.

[0032] Reference Figure 1 and Figure 2 The test platform includes a base 1, a connecting unit 5 is rotatably connected to the base 1, a placement rack 3 is arranged on the connection unit 5, a test device 4 is arranged on the placement rack 3, and an inverter 2 to be tested is arranged on the base 1. The test device 4 in the embodiment of the present application adopts an oscilloscope, which is used to observe and judge the output waveform of the inverter 2.

[0033] Reference Figure 1 and Figure 2 A plurality of vertical rods 13 are welded on the surface of the base 1 facing away from the connecting unit 5. In the embodiment of the present application, the number of the vertical rods 13 is four, and a reinforcing plate 20 is provided on each of the four vertical rods 13. The reinforcing plate 20 in the embodiment of the present application is designed to be bent toward the inside of the test platform. The reinforcing plate 20 enhances the strength of the vertical rods 13 and improves the supporting performance of the vertical plate, thereby further improving the stability of the overall test platform.

[0034] Reference Figure 1 and Figure 2, a first placement plate 14 and a plurality of second placement plates 15 are provided between the four vertical rods 13, and the plurality of second placement plates 15 are all located between the base 1 and the first placement plate 14. In the embodiment of the present application, the number of the second placement plate 15 is described as one, and the operator can also set the number of the second placement plates 15 according to the actual situation. Therefore, the first placement plate 14, the second placement plate 15 and the vertical rods 13 form a frame, which provides support for the base 1, and other test tools can be placed on the first placement plate 14 and the second placement plate 15, so as to facilitate the storage of other test tools.

[0035] Reference Figure 1 and Figure 2 The first placement plate 14 and the plurality of second placement plates 15 are welded with reinforcing ribs 21 on the surfaces facing away from the base 1 , and the reinforcing ribs 21 further improve the stability of the first placement plate 14 and the second placement plate 15 , and improve the strength and rigidity of the first placement plate 14 and the second placement plate 15 .

[0036] Reference Figure 1 and Figure 2 The first placement plate 14 is bolted with four evenly distributed universal wheels 22 on the surface facing away from the base 1. The universal wheels 22 enable the test platform to move freely in all directions. When the volume or weight of the inverter 2 to be tested is too large, the operator can move the test platform as a whole without moving the inverter 2, which improves the convenience of testing the inverter 2. The base 1 in the embodiment of the present application is welded with handles 23 on both sides in the horizontal direction, which further improves the convenience of moving the entire test platform.

[0037] Reference Figure 1 and Figure 2 The connecting unit 5 includes a connecting seat 6 arranged on the base 1, and a fixing sleeve 7 is bolted on the surface of the connecting seat 6 facing away from the base 1. A connecting shaft 8 is rotatably connected to the fixing sleeve 7. The placement frame 3 is arranged on the connecting shaft 8 and is rotatably connected to the connecting shaft 8. A support plate 12 is welded between the connecting shaft 8 and the placement frame 3. The support plate 12 plays a supporting role between the connecting shaft 8 and the placement frame 3, thereby improving the stability of the test device 4 placed on the placement frame 3.

[0038] Therefore, the connecting shaft 8 can be adjusted in angle relative to the base 1, and the placement rack 3 can also be adjusted in angle relative to the connecting shaft 8. The multi-angle adjustment method further enhances the adjustable angle range of the placement rack 3, and the inverter 2 can be tested in multiple directions.

[0039] Reference Figure 1 and Figure 2, a first fixing component for fixing the angle of the connecting shaft 8 relative to the fixing sleeve 7 is provided on the fixing sleeve 7, and a second fixing component for fixing the angle of the placement rack 3 relative to the connecting shaft 8 is provided on the connecting shaft 8. The first fixing component includes a first fixing screw 9 that is passed through and threadedly connected to the fixing sleeve 7, and the first fixing screw 9 is pressed against the connecting shaft 8 at one end facing the connecting shaft 8. The second fixing component includes a connecting sleeve 10 that is rotatably connected to the connecting shaft 8, and the placement rack 3 is provided on the connecting sleeve 10, and a second fixing screw 11 is passed through and threadedly connected to the connecting sleeve 10, and the second fixing screw 11 is pressed against the connecting shaft 8 at one end facing the connecting shaft 8. In the implementation of the present application, a fixing knob 24 is provided on the end of the first fixing screw 9 and the end of the second fixing screw 11 facing away from the connecting shaft 8, and the fixing knob 24 improves the convenience of rotating the first fixing screw 9 and the second fixing screw 11.

[0040] Therefore, when the connecting shaft 8 is rotated to a suitable angle relative to the fixing sleeve 7, the operator rotates the first fixing screw 9 so that one end of the first fixing screw 9 toward the connecting shaft 8 is pressed against the connecting shaft 8, thereby fixing the rotation angle of the connecting shaft 8. When the connecting sleeve 10 is rotated to a suitable angle relative to the connecting shaft 8, the operator rotates the second fixing screw 11 so that one end of the second fixing screw 11 toward the connecting shaft 8 is pressed against the connecting shaft 8, thereby fixing the rotation angle of the connecting sleeve 10, thereby adjusting and fixing the angle of the placement rack 3.

[0041] Reference Figure 2 and Figure 3 A plurality of first adjustment holes 16 are respectively provided on the four vertical rods 13, and an adjustment bolt 17 is passed through the first adjustment hole 16. An adjustment nut 19 matching the adjustment bolt 17 is threadedly connected to the outer edge of the adjustment bolt 17. An adjustment plate 18 is provided on the second placement plate 15, and a second adjustment hole is provided on the adjustment plate 18. The adjustment bolt 17 passes through one of the first adjustment holes 16 and the second adjustment hole in sequence, and the adjustment plate 18 is pressed tightly between the adjustment nut 19 and the vertical rod 13.

[0042] Therefore, when it is necessary to adjust the position of the second placement plate 15, a plurality of first adjustment holes 16 are opened on the vertical rod 13. The operator can select the first adjustment hole 16 of appropriate height according to actual needs, and use the adjustment bolt 17 to bolt the second placement plate 15 to the vertical rod 13 to adjust the height of the second placement plate 15. Tools of different heights or models can be placed on the second placement plate 15, which is more flexible.

[0043] The implementation principle of the embodiment of the present application is as follows: the operator places the inverter 2 to be tested on the base 1, places the test device 4 on the placement rack 3, rotates the connecting shaft 8 to make the connecting shaft 8 rotate to a suitable angle relative to the fixing sleeve 7, and then the operator rotates the first fixing screw 9 to make the first fixing screw 9 press against the connecting shaft 8 at one end toward the connecting shaft 8, thereby fixing the rotation angle of the connecting shaft 8, and after rotating the connecting sleeve 10 to make the connecting sleeve 10 rotate to a suitable angle relative to the connecting shaft 8, the operator rotates the second fixing screw 11 to make the second fixing screw 11 press against the connecting shaft 8 at one end toward the connecting shaft 8, thereby fixing the rotation angle of the connecting sleeve 10, thereby adjusting and fixing the angle of the placement rack 3, without the operator having to move the inverter 2 on the base 1 multiple times to adjust the position, thereby saving time and effort. When the inverter 2 to be tested is too large or too heavy to be carried to the base 1, the operator can use the universal wheels 22 to move the entire test platform to the inverter 2 to be tested for testing. The test device 4 has greater position flexibility and is convenient for testing inverters 2 of different models, and has a wide range of applications.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A test platform, characterized in that: The invention comprises a base (1), a connection unit (5) is rotatably connected to the base (1), a placement rack (3) is provided on the connection unit (5), a test device (4) is arranged on the placement rack (3), and an inverter (2) to be tested is arranged on the base (1).

2. The test platform according to claim 1, characterized in that: The connection unit (5) comprises a connection seat (6) arranged on the base (1); a fixing sleeve (7) is arranged on the surface of the connection seat (6) facing away from the base (1); a connecting shaft (8) is rotatably connected to the fixing sleeve (7); the placement frame (3) is arranged on the connecting shaft (8) and is rotatably connected to the connecting shaft (8); a first fixing component is arranged on the fixing sleeve (7) for fixing the angle of the connecting shaft (8) relative to the fixing sleeve (7); and a second fixing component is arranged on the connecting shaft (8) for fixing the angle of the placement frame (3) relative to the connecting shaft (8).

3. The test platform according to claim 2, characterized in that: The first fixing assembly comprises a first fixing screw (9) which is passed through and threadedly connected to the fixing sleeve (7); one end of the first fixing screw (9) facing the connecting shaft (8) is tightly pressed against the connecting shaft (8).

4. The test platform according to claim 2, characterized in that: The second fixing assembly comprises a connecting sleeve (10) rotatably connected to the connecting shaft (8), the placement frame (3) is arranged on the connecting sleeve (10), a second fixing screw (11) is passed through and threadedly connected to the connecting sleeve (10), and the second fixing screw (11) is pressed against the connecting shaft (8) at one end facing the connecting shaft (8).

5. The test platform according to claim 2, characterized in that: A support plate (12) is provided between the connecting shaft (8) and the placement frame (3).

6. The test platform according to claim 1, characterized in that: A plurality of vertical rods (13) are provided on the surface of the base (1) facing away from the connection unit (5); a first placement plate (14) and a plurality of second placement plates (15) are provided between the plurality of vertical rods (13); and the plurality of second placement plates (15) are all located between the base (1) and the first placement plate (14).

7. The test platform according to claim 6, characterized in that: A plurality of first adjustment holes (16) are respectively formed on the plurality of vertical rods (13), and an adjustment bolt (17) is inserted into each of the first adjustment holes (16). An outer edge of the adjustment bolt (17) is threadedly connected with an adjustment nut (19) matching the adjustment bolt (17). An adjustment plate (18) is formed on the second placement plate (15), and a second adjustment hole is formed on the adjustment plate (18). The adjustment bolt (17) is sequentially inserted through one of the first adjustment holes (16) and the second adjustment hole, and the adjustment plate (18) is pressed tightly between the adjustment nut (19) and the vertical rod (13).

8. The test platform according to claim 6, characterized in that: A plurality of reinforcing plates (20) are provided on the vertical rod (13).

9. The test platform according to claim 6, characterized in that: Reinforcing ribs (21) are provided on the surfaces of the first placement plate (14) and the plurality of second placement plates (15) facing away from the base (1).

10. The test platform according to claim 6, characterized in that: A plurality of universal wheels (22) are provided on the surface of the first placement plate (14) facing away from the base (1).

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