High-voltage frequency converter test system

Abstract

The invention 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 circuit board, a resistance adjusting module and a detected piece, one end of the top of the base is provided with the detection box, the other end of the top of the base is provided with a fixed box, and the top of the fixed box is matched with the detected piece. A centering clamping assembly is arranged on the outer side of the fixing box and the outer side of the base, and the outer side of the detected piece is connected with a second contact. When the device is used, a detected piece is connected through a second contact, then the detected piece is directly placed in the fixing box with the fixing box as a limit, then the centering clamping assembly is started to fix the detected piece, and then the pressing assembly is started, so that the first contact and the second contact are in butt joint communication through a contact block, a conductive spring and a conductive plate; therefore, the connector can be quickly mounted, and the overall working efficiency is greatly improved.

Description

Technical Field

[0001] The 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, water pumps, compressors, rolling mills, etc. in large-scale mining production plants, petrochemicals, municipal water supply, metallurgy, 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 for sustainable development.

[0003] During use of the existing high-voltage inverter test structure, it is necessary to fix the test load to the high-voltage inverter test system before the test is completed. At present, it is generally connected by wiring, and during the test, the output power is generally adjusted by adjusting the size of the resistance, so more heat will be generated. However, high temperature has a greater impact on the test results. In the prior art, 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 detection box, a power supply, a control board, a resistance adjustment module and a detected component, a detection box is arranged at one end of the top of the base, a fixed box is arranged at the other end of the top of the base, the top of the fixed box is matched with the detected component, a center clamping component is arranged on the outside of the fixed box and the base, a second contact is connected to the outside of the detected component, a protective cover located at the top of the base is arranged between the detection box and the fixed box, a downward pressing component is arranged on the top of the protective cover, and an output end of the downward pressing component is arranged A conduction component is arranged, a box cover is arranged 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 the first transmission component and the second transmission component, the interior of the detection box is symmetrically provided with a moving component connected with the second transmission component, an outer end of the detection box is provided with an extraction component extending to the interior thereof, the outer sides of the moving components are all connected with a flapping wheel sliding with the extraction component, the top of the flapping wheel is provided with a gear, the inner wall of the detection box is symmetrically provided with a toothed plate matching the gear, and the top of the box cover is symmetrically connected with 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 it is directly placed in the fixed box, and then the center clamping component is started to fix the detected part, and then the pressing component is started, so that the contact block and the conductive spring and the conductive plate connect the first contact with 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, with the cooperation of the threaded movable sleeve, the movable sliding sleeve and the conveying pipe, enables the flapping wheel to move, 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 to make it 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 cold air conveying pipe allows dry cold air to be introduced into the detection box to achieve a rapid cooling effect on the internal parts of the detection box.

[0008] The present invention is further configured such that a power supply, a control circuit 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 arranged on the outer side of the detection box.

[0009] By adopting the above technical solution and utilizing the functions of the power supply, control panel and resistance adjustment module, it is convenient to ensure the normal use of the equipment.

[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 conduction component includes an insulating plate, a conductive plate, a conductive spring and a contact block, the output end of the pressure-down component is provided with an insulating plate, 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, the functions of the insulating plate, the conductive plate, the conductive spring and the contact block are utilized, thereby facilitating electrical connection so as to complete the work.

[0014] The present invention is further configured such that the center clamping assembly includes a first cylinder, a movable plate and a clamping plate, the first cylinder is installed at the bottom of the base, 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 fixing 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 all 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 component 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 component is connected to the reciprocating screw, the outer side of the reciprocating screw is provided with a threaded moving sleeve, the outer top of the flapping wheel is movably connected with the threaded moving sleeve, and the bottom of the flapping wheel is provided with a moving sliding sleeve that cooperates with the extraction component.

[0019] By adopting the above technical solution, utilizing the functions of the reciprocating screw, the threaded movable sleeve and the movable sliding sleeve, it is convenient to move the beating wheel to cooperate with subsequent work.

[0020] The present invention is further configured such that the extraction component includes an impeller box, an impeller, a connecting pipe and a delivery pipe, an impeller box is arranged at one end of the outer side of the detection box, an impeller connected to the first transmission component is eccentrically arranged inside the impeller box, a connecting pipe is arranged in the outer through groove of the impeller box, and a group of connecting pipes are connected to the delivery pipe extending to the inside 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, the impeller, the connecting pipe and the conveying pipe are utilized, so that the heat and dust can be extracted by cooperating with the connecting pipe and the 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 matching parts so as to complete the work.

[0024] In summary, the present invention mainly has the following beneficial effects: When the present invention is used, the detected part is first connected using the second contact point, and then the fixed box is used as a limiter to directly place it in the fixed box, and 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 point with the second contact point, so as to complete the quick installation of the joint, thereby greatly improving the overall work efficiency; The present invention is also provided with a driving component, which drives 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 the cooperation of the threaded moving sleeve and the moving sliding sleeve and the conveying pipe, enables the flapping wheel to complete the movement, and while moving, cooperates with the toothed plate and the gear to rotate the flapping wheel, thereby flapping the inner wall of the detection box to cause 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, and at the same time, due to the action of the cold air conveying pipe, dry cold air is introduced into the detection box, thereby completing the rapid cooling effect of the internal parts of the detection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a side view of the present invention; Figure 3 It is a schematic diagram of the front cross-section structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the present invention; Figure 5 For the present invention Figure 4 A magnified image of point A; Figure 6 For the present invention Figure 4 Enlarged view of point B.

[0026] 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. two-way 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 rod; 19. tooth plate; 20. beating 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

[0027] 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 cannot be understood as limiting the present invention.

[0028] The following describes an embodiment of the present invention based on its overall structure.

[0029] A high voltage inverter test system, such as Figure 1-6As shown, it includes a base 1, a detection box 2, a power supply 27, a control board 28, a resistance adjustment module 29 and a detected object 35. The detection box 2 is arranged at one end of the top of the base 1, and the fixed box 3 is arranged at the other end of the top of the base 1. The top of the fixed box 3 is matched with the detected object 35. The fixed box 3 and the outer side of the base 1 are provided with a center clamping component. The detected object 35 is connected using the second contact 26, and 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 started to fix the detected object 35, and then the pressing component is started to make the contact block 34 and the conductive spring 24 and The conductive plate 23 connects the first contact 25 and the second contact 26 to each other, thereby completing the quick installation joint, thereby greatly improving the overall work efficiency. The second contact 26 is connected to the outer side of the detected part 35. A protective cover 7 located at the top of the base 1 is arranged between the detection box 2 and the fixed box 3. The top of the protective cover 7 is pressed down by a component, and a conduction component is arranged at the output end of the pressing component. A box cover 9 is arranged at the top of the detection box 2. A driving component is installed on the top of the box cover 9. The output end of the driving component is respectively provided with a first transmission component 14 and a second transmission component 17. The inside of the detection box 2 is symmetrically provided with a drive component connected to the second transmission component 17. The outer side of the detection box 2 is provided with an extraction component extending to the inside thereof, and the driving component is used to drive the first transmission component 14 and the second transmission component 17 to rotate respectively, thereby driving the extraction component and the moving component to work respectively, that is, the rotating reciprocating screw 18, with the cooperation of the threaded moving sleeve 21 and the moving sleeve 32 and the conveying pipe 31, enables the flapping wheel 20 to complete the movement, and the outer side of the moving component is connected with the flapping wheel 20 that slides with the extraction component, and the top of the flapping wheel 20 is provided with a gear 33, and the inner wall of the detection box 2 is symmetrically provided with gears that cooperate with the gear 33. The plate 19 and the top of the box cover 9 are symmetrically connected with a cold air delivery pipe 12. While moving, the tooth plate 19 and the gear 33 are cooperated to rotate the beating wheel 20, thereby beating the inner wall of the detection box 2 to make it vibrate, so that the dust inside the detection box 2 is not easy to adhere and is easy to float in the air, and then the working extraction component cooperates with the connecting pipe 15 and the delivery pipe 31 to quickly take out the dust and heat inside the detection box 2 and disperse them into the air. At the same time, due to the action of the cold air delivery pipe 12, dry cold air is introduced into the detection box 2, completing the rapid cooling effect of the internal parts of the detection box 2.

[0030] See also Figure 3 The bottom of the inner part of the detection box 2 is sequentially installed with a power supply 27, a control board 28 and a resistance adjustment module 29. The outer side of the detection box 2 is provided with a first contact 25 matched 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 outer side of the detection box 2 is installed with a display screen 16. The display screen 16 is used to facilitate the use of parts to complete the work.

[0031] 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.

[0032] 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 a plurality of groups of conductive plates 23 are evenly arranged at the bottom of the insulating plate 22. Conductive springs 24 are arranged at both ends of the bottom of the conductive plate 23, and contact blocks 34 are arranged at the ends of the conductive springs 24 to facilitate contact and power on to complete the work.

[0033] 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.

[0034] 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 all provided with a rotating shaft 11. By utilizing the functions of the bidirectional driver 10 and the rotating shaft 11, it is convenient to supply the driving source to the equipment and complete the work.

[0035] See also Figure 3 The 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 flapping wheel 20 to cooperate with subsequent work. The output end of the second transmission component 17 is connected to the reciprocating screw 18, and a threaded moving sleeve 21 is arranged on the outside of the reciprocating screw 18. The outer top of the flapping wheel 20 is movably connected with the threaded moving sleeve 21, and the bottom of the flapping wheel 20 is provided with a moving sleeve 32 that cooperates with the extraction component to complete the work.

[0036] See also Figure 3The extraction component includes an impeller box 13, an impeller 30, a connecting pipe 15 and a conveying pipe 31. The impeller box 13 is arranged at one end of the outer side of the detection box 2. The impeller box 13 is eccentrically arranged with an impeller 30 connected to the first transmission component 14 inside. 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 with 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 functions 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 cooperation with the connecting pipe 15 and the conveying pipe 31.

[0037] 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 outer side 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, and the flapping wheel 20 reciprocates along the direction of the reciprocating screw rod 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 to make it vibrate, so that the dust inside the detection box 2 is not easy to adhere and is easy to float in the air. In cooperation 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 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. The above structure is pre-started, and when testing again, it is only necessary to place the tested piece 35 in the fixed box 3 and place it by using the limiting function of the fixed box 3 itself. Before that, the second contact 26 is connected to the power contact of the tested piece, and under the limiting function of the fixed box 3, the second contact 26 is moved in and out of the protective cover 7, and 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 moving plate 5 to move, and then the corresponding clamping plate 6 is driven to move, and this movement is a centering movement, so as to complete the clamping of the tested piece, and 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, so as to realize point opening or normal opening, and complete the detection in cooperation with the power supply 27, the control board 28 and the resistance adjustment module 29 and other structures. 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, so as to quickly achieve the effect of heat dissipation and dust cleaning.

[0038] 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 a suitable 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 embodiments without creative contributions 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 inverter test system, comprising a base (1), a test box (2), a power supply (27), a control board (28), a resistance adjustment module (29) and a test piece (35), characterized in that: A detection box (2) is arranged at one end of the top of the base (1), a fixed box (3) is arranged at the other end of the top of the base (1), a detected part (35) is matched at the top of the fixed box (3), a center clamping component is arranged on the outside of the fixed box (3) and the base (1), the outside of the detected part (35) is connected to a second contact (26), a protective cover (7) located at the top of the base (1) is arranged between the detection box (2) and the fixed box (3), a top pressing component of the protective cover (7), an output end of the pressing component is arranged with a conduction component, a box cover (9) is arranged at the top of the detection box (2), and the box cover (9) is provided with a conductive component. A driving assembly is installed on the top, and the output ends of the driving assembly are respectively provided with a first transmission assembly (14) and a second transmission assembly (17). The interior of the detection box (2) is symmetrically provided with a moving assembly connected to the second transmission assembly (17). An extraction assembly extending into the interior of the detection box (2) is provided at one end of the outer side of the detection box (2). The outer sides of the moving assemblies are all connected with a beating wheel (20) that slides with the extraction assembly. A gear (33) is provided on the top of the beating wheel (20). A toothed plate (19) that matches the gear (33) is symmetrically provided on the inner wall of the detection box (2). The top of the box cover (9) is symmetrically connected with a cold air delivery pipe (12).

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

3. The high voltage inverter test system according to claim 1, characterized in that: 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, characterized in that: The conduction component comprises an insulating plate (22), a conductive plate (23), a conductive spring (24) and a contact block (34); the output end of the pressing component is provided with an insulating plate (22); a plurality of groups of conductive plates (23) are evenly arranged at the bottom of the insulating plate (22); conductive springs (24) are arranged at both ends of the bottom of the conductive plate (23); and contact blocks (34) are arranged at the ends of the conductive springs (24).

5. The high voltage inverter test system according to claim 1, characterized in that: 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).

6. The high voltage inverter test system according to claim 1, characterized in that: 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).

7. The high voltage inverter test system according to claim 1, characterized in that: The moving assembly comprises a reciprocating screw (18), a threaded moving sleeve (21) and a moving sliding sleeve (32); the reciprocating screw (18) is symmetrically arranged inside the detection box (2), and the output end of the second transmission assembly (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 sliding sleeve (32) that cooperates with the extraction assembly.

8. The high voltage inverter test system according to claim 1, characterized in that: The extraction assembly comprises an impeller box (13), an impeller (30), a connecting pipe (15) and a delivery pipe (31); an impeller box (13) is arranged at one end of the outer side of the detection box (2); an impeller (30) connected to the first transmission assembly (14) is eccentrically arranged inside the impeller box (13); a connecting pipe (15) is arranged in a through groove outside the impeller box (13); a group of connecting pipes (15) are connected to the delivery pipe (31) extending into the interior of the detection box (2); and the outer side of the delivery pipe (31) cooperates with the movable sleeve (32).

9. 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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