A high-voltage frequency converter testing system

Abstract

The application discloses a high-voltage frequency converter testing system, and relates to the technical field of frequency converter testing.The high-voltage frequency converter testing system comprises a base, a detection box, a power supply, a control electric board, a resistance adjusting module and a detected piece.The top of the base is provided with the detection box at one end, and is provided with a fixing box at the other end.The top of the fixing box is matched with the detected piece.The outer side of the fixing box and the base is provided with a center clamping assembly.The outer side of the detected piece is connected with a second contact point.In use, the detected piece is connected with the second contact point first, and then is directly placed in the fixing box by taking the fixing box as a limit.After that, the center clamping assembly is started to fix the detected piece, and then the pressing assembly is started to make the contact block, the conductive spring and the conductive plate connect the first contact point and the second contact point, so that the quick connector is completed, and the overall work efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency converter testing, in particular to a high-voltage frequency converter testing system. Background Art

[0002] High-voltage inverters are widely used in various fans, pumps, compressors, rolling mills, etc. in large-scale mining production plants, petrochemicals, municipal water supply, metallurgy and steel, electric power and other industries. With the development of the economy and the improvement of automation and intelligence, the use of high-voltage inverters to control the speed of pump loads is not only beneficial to improving processes and improving product quality, but also meets the requirements of energy conservation and economical operation of equipment. It is an inevitable trend of sustainable development.

[0003] During the use of the existing high-voltage inverter test structure, the test load needs to be fixed to the high-voltage inverter test system before the test is completed. At present, the connection is generally made through wiring, and during the test process, the output power is generally adjusted by adjusting the size of the resistance, which will generate more heat. However, high temperature has a greater impact on the test results. In the existing technology, a fan is generally used directly to bring out the heat from the high-voltage inverter adjustment module and form a circulation, thereby completing the heat dissipation task.

[0004] Wiring in the above manner is not only cumbersome but also unstable and not fast enough when replaced, which greatly reduces the overall work efficiency. Secondly, using a fan for heat dissipation greatly reduces the heat dissipation efficiency, which in turn affects the test results. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a high-voltage inverter testing system to solve the technical problems in the prior art that the wiring is not only cumbersome but also unstable and not fast enough when replaced, which greatly reduces the overall work efficiency. Secondly, the use of fans for heat dissipation greatly reduces the heat dissipation efficiency, thereby affecting the test results.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-voltage inverter test system, comprising a base, a test box, a power supply, a control circuit board, a resistance adjustment module and a test piece, wherein a test box is provided at one end of the top of the base, a fixed box is provided at the other end of the top of the base, the test piece is provided inside the fixed box, a center clamping assembly is provided on the outside of the fixed box and the base, a second contact is connected to the outside of the test piece, a protective cover is provided between the test box and the fixed box, a downward pressing assembly is provided on the top of the protective cover, and an output end of the downward pressing assembly is provided. A conduction component is provided, a box cover is provided on the top of the detection box, a driving component is installed on the top of the box cover, the output ends of the driving component are respectively provided with a first transmission component and a second transmission component, the interior of the detection box is symmetrically provided with a moving component connected to the second transmission component, one end of the outer side of the detection box is provided with an extraction component extending to the interior thereof, the outer side of the moving component is connected to a beating wheel that slides with the extraction component, the top of the beating wheel is provided with a gear, the inner wall of the detection box is symmetrically provided with a toothed plate that cooperates with the gear, and the top of the box cover is symmetrically connected to a cold air delivery pipe.

[0007] By adopting the above technical solution, the detected part is connected with the second contact, and then the fixed box is used as a limit, and the detected part is directly placed in the fixed box. Then the center clamping component is started to fix the detected part, and then the pressing component is started to make the contact block and the conductive spring and the conductive plate connect the first contact and the second contact, thereby completing the quick installation of the joint, thereby greatly improving the overall work efficiency; and the driving component is used to drive the first transmission component and the second transmission component to rotate respectively, thereby driving the extraction component and the moving component to work respectively, that is, the rotating reciprocating wire The rod, in cooperation with the threaded moving sleeve, the moving sliding sleeve and the conveying pipe, enables the flapping wheel to complete the movement, and at the same time cooperates with the toothed plate and the gear to rotate the flapping wheel, thereby flapping the inner wall of the detection box and causing it to vibrate, so that the dust inside the detection box is not easy to adhere and is easy to float in the air, and then the working extraction component cooperates with the connecting pipe and the conveying pipe to quickly bring out the dust and heat inside the detection box and disperse them into the air. At the same time, the dry cold air is introduced into the detection box by the action of the cold air conveying pipe, completing the rapid cooling effect of the internal parts of the detection box.

[0008] The present invention is further configured such that a power supply, a control board and a resistance adjustment module are sequentially installed at the inner bottom of the detection box, and a first contact matching with a protective cover is provided on the outer side of the detection box.

[0009] By adopting the above technical solution and utilizing the functions of the power supply, the control panel and the resistance adjustment module, the normal use of the equipment can be ensured.

[0010] The present invention is further configured such that the pressing assembly includes a second cylinder, and the second cylinder is installed on the top of the protective cover.

[0011] By adopting the above technical solution and utilizing the function of the second cylinder, the conduction component can be normally closed or temporarily closed to complete the work.

[0012] The present invention is further configured such that the conductive component includes an insulating plate, a conductive plate, a conductive spring and a contact block; an insulating plate is provided at the output end of the down-pressing component; a plurality of groups of conductive plates are evenly provided at the bottom of the insulating plate; conductive springs are provided at both ends of the bottom of the conductive plate; and contact blocks are provided at the ends of the conductive springs.

[0013] By adopting the above technical solution and utilizing the functions of the insulating plate, the conductive plate, the conductive spring and the contact block, electrical connection is facilitated to complete the work.

[0014] The present invention is further configured such that the centering clamping assembly includes a first cylinder, a movable plate and a clamping plate, the bottom of the base is installed with the first cylinder, the output end of the first cylinder is provided with a movable plate, and one end of the two groups of movable plates is provided with a clamping plate.

[0015] By adopting the above technical solution, the first cylinder, the movable plate and the clamping plate are utilized to facilitate the fixation of the inspected part for subsequent work.

[0016] The present invention is further configured such that the driving assembly includes a bidirectional driver and a rotating shaft, the bidirectional driver is installed on the top of the box cover, and the output ends of the bidirectional driver are both provided with a rotating shaft.

[0017] By adopting the above technical solution and utilizing the effects of the bidirectional driver and the rotating shaft, it is convenient to supply the driving source to the equipment and complete the work.

[0018] The present invention is further configured such that the moving assembly includes a reciprocating screw, a threaded moving sleeve and a moving sliding sleeve, the reciprocating screw is symmetrically arranged inside the detection box, and the output end of the second transmission assembly is connected to the reciprocating screw, the outside of the reciprocating screw is provided with a threaded moving sleeve, the outer top of the flapping wheel is movably connected to the threaded moving sleeve, and the bottom of the flapping wheel is provided with a moving sliding sleeve that cooperates with the extraction assembly.

[0019] By adopting the above technical solution, the functions of the reciprocating screw, the threaded movable sleeve and the movable sliding sleeve are utilized to facilitate the movement of the beating wheel to cooperate with subsequent work.

[0020] The present invention is further configured such that the extraction assembly includes an impeller box, an impeller, a connecting pipe and a delivery pipe, an impeller box is provided at one end of the outer side of the detection box, an impeller connected to the first transmission assembly is eccentrically provided inside the impeller box, a connecting pipe is provided in the outer through groove of the impeller box, and a group of connecting pipes are connected to the delivery pipe extending to the interior of the detection box, and the outer side of the delivery pipe cooperates with the movable sleeve.

[0021] By adopting the above technical solution, the functions of the impeller box, impeller, connecting pipe and conveying pipe are utilized, so that the heat and dust can be extracted in coordination with the connecting pipe and conveying pipe under the action of the rotating impeller.

[0022] The present invention is further configured such that a display screen is installed on the outer side of the detection box.

[0023] By adopting the above technical solution and utilizing the function of the display screen, it is convenient to use the parts together so as to complete the work.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] When the present invention is used, the detected part is first connected using the second contact, and then directly placed in the fixed box using the fixed box as a limit, and then the central clamping component is activated to fix the detected part, and then the pressing component is activated to make the contact block and the conductive spring and the conductive plate connect the first contact and the second contact, thereby completing the quick installation of the joint, thereby greatly improving the overall work efficiency;

[0026] The present invention also provides a driving component to drive the first transmission component and the second transmission component to rotate respectively, thereby driving the extraction component and the moving component to work respectively, that is, the rotating reciprocating screw, in cooperation with the threaded moving sleeve and the moving sleeve and the conveying pipe, enables the flapping wheel to complete the movement, and at the same time cooperates with the toothed plate and the gear to rotate the flapping wheel, thereby flapping the inner wall of the detection box and causing it to vibrate, so that the dust inside the detection box is not easy to adhere and is easy to float in the air, and then the working extraction component cooperates with the connecting pipe and the conveying pipe to quickly bring out the dust and heat inside the detection box and disperse them into the air. At the same time, due to the action of the cold air conveying pipe, dry cold air is introduced into the detection box, completing the rapid cooling effect of the internal parts of the detection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 is a side view of the present invention;

[0029] Figure 3 It is a schematic diagram of the front cross-section structure of the present invention;

[0030] Figure 4 Schematic diagram of the internal structure of the present invention;

[0031] Figure 5 For the present invention Figure 4 A magnified view of point A;

[0032] Figure 6 For the present invention Figure 4 Enlarged view of point B.

[0033] In the figure: 1. base; 2. detection box; 3. fixed box; 4. first cylinder; 5. movable plate; 6. clamping plate; 7. protective cover; 8. second cylinder; 9. box cover; 10. bidirectional drive; 11. rotating shaft; 12. cold air delivery pipe; 13. impeller box; 14. first transmission assembly; 15. connecting pipe; 16. display screen; 17. second transmission assembly; 18. reciprocating screw; 19. tooth plate; 20. flap wheel; 21. threaded movable sleeve; 22. insulating plate; 23. conductive plate; 24. conductive spring; 25. first contact; 26. second contact; 27. power supply; 28. control board; 29. ​​resistance adjustment module; 30. impeller; 31. delivery pipe; 32. movable sleeve; 33. gear; 34. contact block; 35. detected part. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0035] The following describes an embodiment of the present invention based on its overall structure.

[0036] A high voltage inverter test system, such as Figure 1-6As shown, the base 1, the detection box 2, the power supply 27, the control board 28, the resistance adjustment module 29 and the detected part 35 are provided. The detection box 2 is provided at one end of the top of the base 1, and the fixed box 3 is provided at the other end of the top of the base 1. The detected part 35 is provided inside the fixed box 3. The fixed box 3 and the outer side of the base 1 are provided with a center clamping component. The detected part 35 is connected using the second contact 26. Then, the fixed box 3 is used as a limit and is directly placed in the fixed box 3. Then, the center clamping component is activated to fix the detected part 35. Then, the pressing component is activated so that the contact block 34 and the conductive spring 24 are in contact with the conductive spring. The electric board 23 connects the first contact 25 with the second contact 26, thereby completing the quick installation joint, thereby greatly improving the overall work efficiency. The outside of the detected part 35 is connected with the second contact 26. A protective cover 7 located on the top of the base 1 is provided between the detection box 2 and the fixed box 3. A downward pressure component is provided on the top of the protective cover 7. A conductive component is provided at the output end of the downward pressure component. A box cover 9 is provided on the top of the detection box 2. A driving component is installed on the top of the box cover 9. The output ends of the driving component are respectively provided with a first transmission component 14 and a second transmission component 17. The interior of the detection box 2 is symmetrically provided with the second transmission component 17. The connected moving assembly, one end of the outer side of the detection box 2 is provided with an extraction assembly extending into the interior thereof, and the driving assembly is used to respectively drive the first transmission assembly 14 and the second transmission assembly 17 to rotate, thereby respectively driving the extraction assembly and the moving assembly to work, that is, the rotating reciprocating screw 18, in cooperation with the threaded moving sleeve 21 and the moving sleeve 32 and the conveying pipe 31, enables the slapping wheel 20 to complete the movement, and the outer side of the moving assembly is connected to the slapping wheel 20 that slides with the extraction assembly, and the top of the slapping wheel 20 is provided with a gear 33, and the inner wall of the detection box 2 is symmetrically provided with a gear 33 that cooperates with the gear 33. The tooth plate 19 and the top of the box cover 9 are symmetrically connected with the cold air delivery pipe 12. While moving, the tooth plate 19 and the gear 33 are coordinated to rotate the beating wheel 20, thereby beating the inner wall of the detection box 2 and causing it to vibrate, so that the dust inside the detection box 2 is not easy to adhere and is easy to float in the air. Then, the working extraction component cooperates with the connecting pipe 15 and the delivery pipe 31 to quickly bring out the dust and heat inside the detection box 2 and disperse them into the air. At the same time, the cold air delivery pipe 12 allows dry cold air to be introduced into the detection box 2, completing the rapid cooling effect of the internal parts of the detection box 2.

[0037] See also Figure 3The bottom end of the interior of the detection box 2 is sequentially installed with a power supply 27, a control board 28 and a resistance adjustment module 29. The outside of the detection box 2 is provided with a first contact 25 that cooperates with the protective cover 7. The power supply 27, the control board 28 and the resistance adjustment module 29 are used to ensure the normal use of the equipment. The outside of the detection box 2 is installed with a display screen 16. The function of the display screen 16 is used to facilitate the use of parts to complete the work.

[0038] See also Figure 3 The pressing component includes a second cylinder 8, and the second cylinder 8 is installed on the top of the protective cover 7. The second cylinder 8 is used to facilitate the normal closing or point closing of the conduction component to complete the work.

[0039] See also Figure 3 and Figure 6 The conducting component includes an insulating plate 22, a conductive plate 23, a conductive spring 24 and a contact block 34. The insulating plate 22, the conductive plate 23, the conductive spring 24 and the contact block 34 are used to facilitate electrical connection to complete the work. The output end of the pressing component is provided with an insulating plate 22, and multiple groups of conductive plates 23 are evenly arranged at the bottom of the insulating plate 22. Conductive springs 24 are provided at both ends of the bottom of the conductive plate 23, and contact blocks 34 are provided at the ends of the conductive springs 24 to facilitate contact and power on to complete the work.

[0040] See also Figure 1 The center clamping assembly includes a first cylinder 4, a movable plate 5 and a clamping plate 6. The first cylinder 4 is installed at the bottom of the base 1. The output end of the first cylinder 4 is provided with a movable plate 5. One end of the two groups of movable plates 5 is provided with a clamping plate 6. The first cylinder 4, the movable plate 5 and the clamping plate 6 are used to fix the detected part 35 for subsequent work.

[0041] See also Figure 1 and Figure 3 The driving component includes a bidirectional driver 10 and a rotating shaft 11. The bidirectional driver 10 is installed on the top of the box cover 9. The output ends of the bidirectional driver 10 are both provided with a rotating shaft 11. The bidirectional driver 10 and the rotating shaft 11 are used to facilitate the supply of driving source to the equipment to complete the work.

[0042] See also Figure 3The moving component includes a reciprocating screw 18, a threaded moving sleeve 21 and a moving sleeve 32. The reciprocating screw 18 is symmetrically arranged inside the detection box 2. The reciprocating screw 18, the threaded moving sleeve 21 and the moving sleeve 32 are used to facilitate the movement of the beating wheel 20 to cooperate with subsequent work, and the output end of the second transmission component 17 is connected to the reciprocating screw 18. The outer side of the reciprocating screw 18 is provided with a threaded moving sleeve 21. The outer top of the beating wheel 20 is movably connected to the threaded moving sleeve 21, and the bottom of the beating wheel 20 is provided with a moving sleeve 32 that cooperates with the extraction component to complete the work.

[0043] See also Figure 3 The extraction component includes an impeller box 13, an impeller 30, a connecting pipe 15 and a conveying pipe 31. The impeller box 13 is provided at one end of the outer side of the detection box 2. The impeller box 13 is eccentrically provided with an impeller 30 connected to the first transmission component 14. The outer through groove of the impeller box 13 is provided with a connecting pipe 15, and a group of connecting pipes 15 are connected to the conveying pipe 31 extending to the inside of the detection box 2, and the outer side of the conveying pipe 31 is matched with the movable sleeve 32. By utilizing the effects of the impeller box 13, the impeller 30, the connecting pipe 15 and the conveying pipe 31, it is convenient to complete the extraction of heat and dust under the action of the rotating impeller 30, in conjunction with the connecting pipe 15 and the conveying pipe 31.

[0044] The working principle of the present invention is as follows: when in use, first start the driving component, that is, start the bidirectional driver 10, so that it drives the corresponding rotating shaft 11 to rotate, thereby driving the first transmission component 14 and the second transmission component 17 to work, and then the impeller 30 and the symmetrical reciprocating screw 18 are rotated. Then, due to the eccentric design of the impeller 30 in the impeller box 13 and the symmetrical design of the inlet and outlet on the same side, suction is formed in the connecting pipe 15 and the conveying pipe 31. A plurality of through holes are provided on the outside of the conveying pipe 31 to quickly absorb the heat and dust inside the detection box 2; secondly, the rotating reciprocating screw 18, under the action of the threaded moving sleeve 21, cooperates with the moving sleeve 32 and the conveying pipe 31 to form a limit, which will flap the wheel 20 reciprocates along the direction of the reciprocating screw 18. During this process, the tooth plate 19 and the gear 33 are cooperated to make the beating wheel 20 rotate, thereby beating the inside of the detection box 2 and causing it to vibrate, so that the dust inside the detection box 2 is not easy to adhere and is easy to float in the air. In conjunction with the extraction component, the dust and heat inside the detection box 2 are quickly taken out and dispersed into the air. At the same time, the external cooling source is started and connected to the detection box 2 through the cold air delivery pipe 12. Due to the action of the extraction component, the air in the detection box 2 is extracted out. Under the condition of extraction and introduction, the heat exchange is completed, so that the dry cold air is introduced into the detection box 2, and the internal parts of the detection box 2 are quickly cooled.

[0045] The above structure is pre-activated. When testing, it is only necessary to place the tested object 35 in the fixed box 3 and use the limiting function of the fixed box 3 to place it. Before that, the second contact 26 is connected to the power contact of the tested object, and under the limiting function of the fixed box 3, the second contact 26 is moved in and out of the protective cover 7. Then, the centering clamping component and the pressing component are started at the same time, that is, the first cylinder 4 is started to drive the movable plate 5 to move, and then the corresponding clamping plate 6 is moved, and this movement is a centering movement, thereby completing the clamping of the tested object. At the same time, the second cylinder 8 is started. It drives the insulating plate 22, and then the corresponding conductive plate 23 moves downward, and under the action of the conductive spring 24 and the contact block 34, the corresponding first contact 25 is connected to the second contact 26, thereby realizing point opening or normal opening, and in conjunction with the power supply 27, the control board 28 and the resistance adjustment module 29 and other structures, the detection is completed. During the detection process, a large amount of heat will be generated inside the detection box 2, so that the driving component, under the action of the first transmission component 14 and the second transmission component 17, drives the extraction component and the moving component to work, thereby not only quickly completing the heat dissipation and dust cleaning effects.

[0046] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A high-voltage frequency converter test system, comprising a base (1), a test box (2), a power supply (27), a control circuit board (28), a resistance adjustment module (29) and a test piece (35), characterized in that: A detection box (2) is provided at one end of the top of the base (1), a fixed box (3) is provided at the other end of the top of the base (1), a detected part (35) is provided inside the fixed box (3), a center clamping assembly is provided on the outside of the fixed box (3) and the base (1), and a second contact (26) is connected to the outside of the detected part (35), a protective cover (7) located at the top of the base (1) is provided between the detection box (2) and the fixed box (3), a pressing assembly is provided on the top of the protective cover (7), and a conducting assembly is provided at the output end of the pressing assembly, which comprises an insulating plate (22), a conductive plate (23), a conductive spring (24) and a contact block (34), and the insulating plate (22), the conductive plate (23) are used to connect the conductive spring to the conductive spring. ), the conductive spring (24) and the contact block (34), thereby facilitating electrical connection to complete the work, the output end of the pressing component is provided with an insulating plate (22), the bottom of the insulating plate (22) is evenly provided with multiple groups of conductive plates (23), both ends of the bottom of the conductive plate (23) are provided with conductive springs (24), and the ends of the conductive springs (24) are provided with contact blocks (34), which facilitate contact and power supply to complete the work, the top of the detection box (2) is provided with a box cover (9), the top of the box cover (9) is installed with a driving component, the output end of the driving component is respectively provided with a first transmission component (14) and a second transmission component (17), and the interior of the detection box (2) is symmetrically provided with a moving component connected to the second transmission component (17) The outer end of the detection box (2) is provided with an extraction component extending into the interior thereof, the outer side of the moving component is connected to a beating wheel (20) that slides with the extraction component, the top of the beating wheel (20) is provided with a gear (33), the inner wall of the detection box (2) is symmetrically provided with a toothed plate (19) that matches the gear (33), the moving component includes a reciprocating screw (18), a threaded moving sleeve (21) and a moving sleeve (32), the interior of the detection box (2) is symmetrically provided with a reciprocating screw (18), the use of the reciprocating screw (18), the threaded moving sleeve (21) and the moving sleeve (32) facilitates the movement of the beating wheel (20) to cooperate with subsequent work, and the output end of the second transmission component (17) is connected to the reciprocating screw The detection box (2) is connected to the detection box (18), the outer side of the reciprocating screw rod (18) is provided with a threaded movable sleeve (21), the outer top of the beating wheel (20) is movably connected to the threaded movable sleeve (21), and the bottom of the beating wheel (20) is provided with a movable sliding sleeve (32) that cooperates with the extraction component to complete the work. The extraction component includes an impeller box (13), an impeller (30), a connecting pipe (15) and a conveying pipe (31). An impeller box (13) is provided at one end of the outer side of the detection box (2), and an impeller (30) connected to the first transmission component (14) is eccentrically provided inside the impeller box (13). A connecting pipe (15) is provided in the outer through groove of the impeller box (13), and a group of connecting pipes (15) are connected to the conveying pipe (31) extending to the inside of the detection box (2).The outer side of the delivery pipe (31) is matched with the movable sleeve (32), and the top of the box cover (9) is symmetrically connected to the cold air delivery pipe (12).

2. The high-voltage inverter test system according to claim 1, characterized in that: A power supply (27), a control panel (28) and a resistance adjustment module (29) are sequentially installed at the inner bottom of the detection box (2), and a first contact (25) that cooperates with the protective cover (7) is provided on the outer side of the detection box (2).

3. The high-voltage inverter test system according to claim 1, wherein: The pressing assembly comprises a second cylinder (8), and the second cylinder (8) is installed on the top of the protective cover (7).

4. The high-voltage inverter test system according to claim 1, wherein: The centering clamping assembly comprises a first cylinder (4), a movable plate (5) and a clamping plate (6); the first cylinder (4) is installed at the bottom of the base (1); the output end of the first cylinder (4) is provided with a movable plate (5); and one end of two groups of movable plates (5) is provided with a clamping plate (6).

5. The high-voltage inverter test system according to claim 1, wherein: The driving assembly comprises a bidirectional driver (10) and a rotating shaft (11). The bidirectional driver (10) is installed on the top of the box cover (9), and the output end of the bidirectional driver (10) is provided with a rotating shaft (11).

6. The high-voltage inverter test system according to claim 1, characterized in that: A display screen (16) is installed on the outside of the detection box (2).

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