Frequency converter with external protection structure

Abstract

The utility model relates to the field of frequency converters, and discloses a frequency converter with an external protection structure, which comprises a protection box, the outer walls of the left and right sides of the protection box are fixedly connected with protection frames, the inner walls of the front and rear ends of the protection frames are provided with first sliding grooves, and the inner walls of the first sliding grooves are slidably connected with first sliding blocks. Baffles are fixedly connected between the first sliding blocks, sponge pads are arranged on the opposite faces of the baffles and fixedly connected with the protection frame, a movable door is arranged on the outer wall of the front end of the protection box, and a movable platform is arranged at the rear end of the movable door. According to the frequency converter winding device, the second nut pair rotates to wind a wire, external impurities and water vapor are blocked through the protection frame, the baffle and the sponge pad, an internal frequency converter is protected, the first nut pair and the clamping plate move to clamp different types of frequency converters, and the frequency converter winding device is convenient to use and high in practicability. And when the movable door is opened, the frequency converter can be moved out, so that the frequency converter is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, in particular to a frequency converter with an external protection structure. Background Art

[0002] The frequency converter is an electric power control device that applies frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply to protect the frequency converter.

[0003] After searching, the existing Chinese patent announcement number is: CN219918693U, which provides an industrial inverter with external protection. This patent can effectively protect the industrial inverter by setting a protective cover and a base plate. By setting multiple first anti-slip pads, the protection effect can be improved. By setting an exhaust pipe and an air intake pipe, the industrial inverter can be cooled. By setting a dustproof net, external dust can be prevented from entering the protective cover and accumulating.

[0004] Although the above patent can protect the inverter, the above industrial inverter with external protection still has the following problems: dust can be blocked by providing a dustproof net, but water vapor will still enter the interior and damage the inverter. At the same time, the inverter needs to be wired, and the lack of winding of the wires makes maintenance very troublesome.

[0005] In order to solve the above problems, a frequency converter with an external protection structure is proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide an inverter with an external protective structure, which solves the problem in the background technology that dust can be blocked by providing a dustproof net, but water vapor will still enter the interior and damage the inverter. At the same time, the inverter needs to be wired, and the problem of not winding the wires causes trouble during maintenance.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inverter with an external protection structure, comprising a protection box, wherein the outer walls on the left and right sides of the protection box are fixedly connected to a protection frame, the inner walls at the front and rear ends of the protection frame are provided with a first slide groove, the inner wall of the first slide groove is slidably connected to a first slider, a baffle is fixedly connected between the first sliders, the back sides of the baffles are provided with a sponge pad, and the sponge pad is fixedly connected to the protection frame, the front outer wall of the protection box is provided with a movable door, the rear end of the movable door is provided with a movable platform, and the top left side of the movable platform is fixedly connected with a uniformly distributed The transmission gear of said sliding panel also is provided with an interlocking structure, and the interlocking structures include a first motor and a second motor, and a second motor and a second nut pair. The second motor and the second nut pair are connected in a round shank to each other, and a third motor and a second nut pair are connected in a round shank to each other. The transmission gear of said sliding panel also is provided with an interlocking structure.

[0008] By adopting the above technical solution, the second nut pair is limited by the limiting rod inside the second nut pair.

[0009] As a further description of the above technical solution: the rotating assembly includes an L-shaped plate, a first motor is fixedly connected to the inside of the L-shaped plate, a driving gear is fixedly connected to the output end of the first motor, the inner walls on both sides of the rear end of the protective box are rotatably connected to bidirectional threaded rods, and the outer rings on both sides of the left and right sides of the bidirectional threaded rods are threadedly connected to the first nut pair.

[0010] By adopting the above technical solution, the driving gear is driven to rotate by the first motor.

[0011] As a further description of the above technical solution: second sliding grooves are opened on the left and right inner walls of the bottom of the protection box, and second sliders are fixedly connected to the left and right outer walls of the mobile platform, and the second sliders are slidably connected to the second sliding grooves.

[0012] By adopting the above technical solution, the movable platform can be slid out through the second sliding block and the second sliding groove.

[0013] As a further description of the above technical solution: a frequency converter body is provided at the upper end of the mobile platform, and tension springs are fixedly connected to the left and right sides of the rear end of the mobile platform, and the tension springs are fixedly connected to the protection box.

[0014] By adopting the above technical solution, the stretch spring is pulled so that the stretch spring can reset the movable platform.

[0015] As a further description of the above technical solution: slots are provided on the inner walls of the left and right front ends of the protection box, connecting blocks are fixedly connected to the left and right sides of the rear end of the movable door, and a plug rod is rotatably connected to the middle of the connecting block.

[0016] By adopting the above technical solution, the rod is inserted into the slot to support the sliding door.

[0017] As a further description of the above technical solution: a belt is provided between the driving pulley and the driven pulley.

[0018] By adopting the above technical solution, the driven pulley is driven to rotate by the driving pulley and the belt.

[0019] As a further description of the above technical solution: the outer ring in the middle of the bidirectional threaded rod is fixedly connected with a driven gear, and the driven gear is meshed with the driving gear.

[0020] By adopting the above technical solution, the bidirectional threaded rod is rotated by meshing the driving gear with the driven gear.

[0021] As a further description of the above technical solution: a guide column is passed through and slidably connected to the inside of the first nut pair, and the guide column is fixedly connected to the inner wall of the protection box, and a splint is fixedly connected to the front end of the first nut pair.

[0022] By adopting the above technical solution, the frequency converter is clamped by the clamping plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The utility model provides a frequency converter with an external protection structure. First, two motors are used to drive the rotating shaft and the winding shaft to rotate. The active pulley, the belt and the driven pulley are used to drive the threaded rod to rotate, so that the second nut pair is rotated to reel the wire. The protective frames, baffles and sponge pads on both sides are used to block external impurities and water vapor and protect the internal frequency converter. The wire is collected and the frequency converter is protected at the same time, thereby increasing the service life.

[0025] 2. The utility model provides a frequency converter with an external protective structure, in which a driving gear is driven to rotate by a first motor, and the driving gear is engaged with a driven gear to rotate a bidirectional threaded rod, and the first nut pairs and clamps on both sides move to clamp frequency converters of different models. When the movable door is opened by a tension spring, a moving platform, a second slide groove, a second slider, a slot and an insertion rod, the frequency converter can be moved out, thereby facilitating maintenance of the frequency converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the explosion structure of the protection frame of the utility model;

[0028] Figure 3 This is a structural diagram of the connecting block of the utility model;

[0029] Figure 4 This is a schematic structural diagram of the second chute of the present invention;

[0030] Figure 5 This is a schematic cross-sectional view of the protective box of the present invention;

[0031] Figure 6 This is a schematic structural diagram of the first motor of the present invention;

[0032] Figure 7 This is a schematic structural diagram of the second motor of the present invention.

[0033] In the figure: 1. Protection box; 2. Moving door; 3. Protection frame; 4. First slide; 5. First slider; 6. Baffle; 7. Sponge pad; 8. Connecting block; 9. Insert rod; 10. Second slider; 11. Second slide; 12. Moving platform; 13. Tension spring; 14. Slot; 15. Inverter body; 16. Support column; 17. L-shaped plate; 18. First motor; 19. Driving gear; 20. Driven gear; 21. Bidirectional threaded rod; 22. First nut pair; 23. Guide column; 24. Clamp; 25. Second motor; 26. Rotating shaft; 27. Winding shaft; 28. Driving pulley; 29. ​​Belt; 30. Driven pulley; 31. Rotating sleeve; 32. Threaded rod; 33. Second nut pair. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0036] Combine Figure 1 The utility model is a frequency converter with an external protection structure, including a protection box 1, the left and right outer walls of the protection box 1 are fixedly connected with a protection frame 3, the outer wall of the protection frame 3 has an inclined plate, which can block dust and water, and the front outer wall of the protection box 1 is provided with a movable door 2.

[0037] Combine Figure 2 、 Figure 5 and Figure 7 , the inner walls of the front and rear ends of the protection frame 3 are provided with a first slide groove 4, the inner wall of the first slide groove 4 is slidably connected with a first slider 5, and a baffle 6 is fixedly connected between the first sliders 5. There is a desiccant inside the baffle 6 to prevent water vapor from entering the protection box 1. A sponge pad 7 is provided on the opposite side of the baffle 6, and the sponge pad 7 is fixedly connected to the protection frame 3. There is a drain groove at the bottom of the protection frame 3. The water in the sponge pad 7 is discharged to the outside of the drain groove, through the sealing gaskets and handles on the top of the two first sliders 5, to prevent water and impurities from entering, and at the same time, it is convenient to remove the baffle 6. Take it out, a mobile platform 12 is provided at the rear end of the mobile door 2, and a support rod is provided at the bottom of the mobile platform 12 to support the inverter body 15 and the mobile platform 12. The support rod slides on the inner wall of the mobile platform 12, and the top of the left side of the mobile platform 12 is fixedly connected with a uniformly distributed support column 16. The top of the left rear end support column 16 is fixedly connected to the second motor 25, and the output end of the second motor 25 is fixedly connected to the rotating shaft 26. The outer wall of the front end of the rotating shaft 26 is fixedly connected to the winding shaft 27, and the winding shaft 27 rotates with the support column 16. The outer ring of the rotating shaft 26 is fixedly connected to the driving pulley 28, and the tops of the support columns 16 at the front and rear ends on the right side are fixedly connected to the rotating sleeve 31. A driven pulley 30 is provided at the bottom right side of the driving pulley 28. The inner wall of the driven pulley 30 is fixedly connected to a threaded rod 32, and the threaded rod 32 is rotatably connected to the rotating sleeve 31. The outer ring of the threaded rod 32 is threadedly connected to a second nut pair 33. A belt 29 is provided between the driving pulley 28 and the driven pulley 30. The line is first wound around the outer wall of the winding shaft 27, and the line is placed on the second In the middle of the plug plate of the nut pair 33, the rotating shaft 26 is driven to rotate by the second motor 25, so that the winding shaft 27 is rotated, and the rotating shaft 26 drives the driving pulley 28 to rotate, and the driven pulley 30 is driven to rotate by the belt 29 and the driving pulley 28, so that the threaded rod 32 inside the driven pulley 30 is rotated, so that the second nut pair 33 on the outer wall of the threaded rod 32 is rotated to collect the line, and the second nut pair 33 is limited and guided by the limiting rod in the middle of the second nut pair 33.

[0038] Combine Figure 3-6The rear end of the protection box 1 is provided with a rotating assembly, which includes an L-shaped plate 17. A first motor 18 is fixedly connected to the inside of the L-shaped plate 17. The output end of the first motor 18 is fixedly connected to a driving gear 19. The inner walls on both sides of the rear end of the protection box 1 are rotatably connected to a bidirectional threaded rod 21. The outer rings of the left and right sides of the bidirectional threaded rod 21 are threadedly connected to a first nut pair 22. The driving gear 19 is driven to rotate by the first motor 18, and the driving gear 19 is engaged with the driven gear 20, so that the bidirectional threaded rod 21 inside the driven gear 20 rotates, driving the two The first nut pair 22 on the side rotates, and the guide column 23 runs through the inside of the first nut pair 22 to guide the first nut pair 22. The first nut pair 22 moves to drive the clamping plate 24 to move, and the inverter body 15 is clamped. The through hole of the clamping plate 24 can ensure the normal heat dissipation of the inverter body 15. The inner walls on the left and right sides of the bottom of the protection box 1 are provided with second sliding grooves 11, and the outer walls on the left and right sides of the mobile platform 12 are fixedly connected with second sliders 10, and the second sliders 10 are slidably connected to the second sliding grooves 11. The mobile platform 12, the second slider 10 and The movable door 2 is fixed, and the upper end of the movable platform 12 is provided with an inverter body 15. The left and right sides of the rear end of the movable platform 12 are fixedly connected with tension springs 13, and the tension springs 13 are fixedly connected to the protection box 1. The inner walls of the left and right front ends of the protection box 1 are provided with slots 14. The left and right sides of the rear end of the movable door 2 are fixedly connected with connecting blocks 8. The middle part of the connecting block 8 is connected with a rod 9 by rotation. The splint 24 is loosened and the movable door 2 is pulled forward. The second slider 10 and the movable platform 12 are moved to the front end, and the rod 9 is inserted into the slot 14 to adjust the movable platform 12. To limit the position, the tension spring 13 at the rear end pulls the mobile platform 12, takes out the insertion rod 9, and the mobile door 2 and the mobile platform 12 automatically go back, which is convenient for repairing the inverter body 15. The outer ring of the middle part of the two-way threaded rod 21 is fixedly connected with the driven gear 20, and the driven gear 20 is meshed with the driving gear 19. The driven gear 20 limits the first nut pairs 22 on both sides. The first nut pair 22 is penetrated and slidably connected with a guide column 23, and the guide column 23 is fixedly connected to the inner wall of the protection box 1, and the front end of the first nut pair 22 is fixedly connected with a splint 24.

[0039] Working principle: put the inverter body 15 inside, drive the driving gear 19 to rotate through the first motor 18, and mesh the driving gear 19 with the driven gear 20, so that the bidirectional threaded rod 21 inside the driven gear 20 rotates, driving the first nut pair 22 on both sides to rotate. The guide column 23 runs through the inside of the first nut pair 22 to guide the first nut pair 22. The movement of the first nut pair 22 drives the clamping plate 24 to move and clamp the inverter body 15. The normal heat dissipation of the inverter body 15 can be ensured through the through hole of the clamping plate 24. The second motor 25 drives the rotating shaft 26 to rotate, so that the winding shaft 27 rotates, and the rotating shaft 26 drives the driving pulley 28 to rotate, and the belt 29 and the driving pulley are connected. 28 drives the driven pulley 30 to rotate, so that the threaded rod 32 inside the driven pulley 30 rotates, so that the second nut pair 33 on the outer wall of the threaded rod 32 rotates, the line is collected, and the second nut pair 33 is limited and guided by the limiting rod in the middle of the second nut pair 33, and the water vapor and impurities are blocked by the protective frame 3, sponge pad 7 and baffle 6. When maintenance is needed, the splint 24 is loosened, the movable door 2 is pulled forward, the second slider 10 and the movable platform 12 are moved to the front end, the rod 9 is inserted into the slot 14, the movable platform 12 is limited, the tension spring 13 at the rear end pulls the movable platform 12, the rod 9 is taken out, and the movable door 2 and the movable platform 12 automatically go back, which is convenient for maintenance of the inverter body 15.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frequency converter with an external protection structure, comprising a protection box (1), characterized in that: The left and right outer walls of the protection box (1) are fixedly connected with a protection frame (3), the inner walls of the front and rear ends of the protection frame (3) are provided with a first slide groove (4), the inner wall of the first slide groove (4) is slidably connected with a first slider (5), a baffle (6) is fixedly connected between the first sliders (5), the baffle (6) is provided with a sponge pad (7) on the opposite side, and the sponge pad (7) is fixedly connected to the protection frame (3), the front outer wall of the protection box (1) is provided with a movable door (2), the rear end of the movable door (2) is provided with a movable platform (12), the left top of the movable platform (12) is fixedly connected with evenly distributed support columns (16), the top of the left rear end of the support column (16) is fixedly connected with a second motor (25), the The output end of the second motor (25) is fixedly connected to a rotating shaft (26), the front end outer wall of the rotating shaft (26) is fixedly connected to a winding shaft (27), and the winding shaft (27) is rotatably connected to the support column (16), the outer ring of the rotating shaft (26) is fixedly connected to a driving pulley (28), the top of the support column (16) at the front and rear ends on the right side is fixedly connected to a rotating sleeve (31), the right bottom of the driving pulley (28) is provided with a driven pulley (30), the inner wall of the driven pulley (30) is fixedly connected to a threaded rod (32), and the threaded rod (32) is rotatably connected to the rotating sleeve (31), the outer ring of the threaded rod (32) is threadedly connected to a second nut pair (33), and the rear end of the protection box (1) is provided with a rotating assembly.

2. The frequency converter with an external protection structure according to claim 1, characterized in that: The rotating assembly comprises an L-shaped plate (17), a first motor (18) is fixedly connected inside the L-shaped plate (17), a driving gear (19) is fixedly connected to the output end of the first motor (18), and both left and right inner walls of the rear end of the protection box (1) are rotatably connected to bidirectional threaded rods (21), and both left and right outer rings of the bidirectional threaded rods (21) are threadedly connected to first nut pairs (22).

3. The frequency converter with an external protection structure according to claim 1, characterized in that: The left and right inner walls of the bottom of the protection box (1) are both provided with second slide grooves (11), the left and right outer walls of the mobile platform (12) are both fixedly connected with second sliders (10), and the second sliders (10) are slidably connected to the second slide grooves (11).

4. The frequency converter with an external protection structure according to claim 1, characterized in that: A frequency converter body (15) is arranged at the upper end of the mobile platform (12), and tension springs (13) are fixedly connected to both left and right sides of the rear end of the mobile platform (12), and the tension springs (13) are fixedly connected to the protection box (1).

5. The frequency converter with an external protection structure according to claim 1, characterized in that: The inner walls of the front ends of the protection box (1) are provided with slots (14), the left and right sides of the rear end of the movable door (2) are fixedly connected with connection blocks (8), and the middle of the connection block (8) is rotatably connected with an insertion rod (9).

6. The frequency converter with an external protection structure according to claim 1, characterized in that: A belt (29) is arranged between the driving pulley (28) and the driven pulley (30).

7. The frequency converter with an external protection structure according to claim 2, characterized in that: The outer ring in the middle of the bidirectional threaded rod (21) is fixedly connected with a driven gear (20), and the driven gear (20) is meshingly connected with the driving gear (19).

8. The frequency converter with an external protection structure according to claim 2, characterized in that: A guide column (23) passes through and is slidably connected to the interior of the first nut pair (22), and the guide column (23) is fixedly connected to the inner wall of the protection box (1), and a clamping plate (24) is fixedly connected to the front end of the first nut pair (22).

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