High voltage inverter control cabinet with protection function

Abstract

The present invention relates to the technical field of frequency converter control cabinets, and in particular, to a high-voltage frequency converter control cabinet with a protective function, including a control cabinet, and the left and right side walls of the cabinet are symmetrically provided with ventilation windows, and the ventilation windows are provided with a high-temperature protection component for cooling the control cabinet; the high-temperature protection component includes a plurality of windshields regularly arranged between the front and rear side walls of the ventilation windows, a wind direction adjustment structure, a wind hood whose inner end is connected to the corresponding side ventilation windows, and an air inlet tube whose inner end is connected to the outer end of the wind hood. By providing the high-temperature protection component, the control cabinet can cool down the interior by suction when the temperature inside the cabinet is too high. At the same time, by providing the windshield and the wind direction adjustment structure, the wind direction of the incoming air can be changed to avoid cooling only a fixed position; in addition, by providing the cleaning component, the grille can be cleaned during the suction cooling to avoid the blocking of debris that causes the ineffective air intake and affects the cooling effect.

Description

Technical Field

[0001] The invention belongs to the technical field of frequency converter control cabinets, in particular to a high-voltage frequency converter control cabinet with a protection function. Background Art

[0002] The high-voltage inverter control cabinet is an electrical control device designed specifically for high-voltage inverters. When the high-voltage inverter is running at high load, in order to ensure the normal use of parts, the cabinet needs to be protected from heat dissipation and cooling.

[0003] For example, the invention patent with the authorization announcement number CN118042759A discloses a submersible electric pump variable frequency control cabinet in the field of electrical engineering technology, including a cabinet body, a mirror-distributed first air intake shaft is rotatably connected in the cabinet body, the first air intake shaft is provided with circumferentially distributed air intake grooves, a mirror-distributed second air intake shaft is slidably connected in the cabinet body and spline-connected with the adjacent first air intake shaft, the second air intake shaft is provided with circumferentially distributed air outlet grooves, and the air intake groove on the first air intake shaft is fixedly connected and connected with the adjacent air outlet groove on the adjacent second air intake shaft by an air intake pipe. The present invention increases the flow distance and circulation direction of air through the geometric air passage formed by the first air intake shaft, the second air intake shaft and the air intake pipe, and avoids the accumulation of impurities such as mosquito carcasses, thereby ensuring the cooling cycle efficiency of the variable frequency control cabinet and the cleanliness of the air, and avoiding the attachment of impurities such as mosquito carcasses to the frequency converter and other devices in the cabinet body, which reduces the heat dissipation efficiency.

[0004] Combining the above cases and actual conditions, we found the following problems: First, when using fans for heat dissipation and cooling, the blowing angle is usually fixed or the air circulation route is fixed, resulting in cooling of only fixed areas. If the internal heating area is large, there will be dead corners for cooling, which cannot be fully covered. In addition, in some cabinets, suction cooling is used, and staff are required to manually clean the grille, which is not only troublesome but the high-voltage inverter control cabinet may also affect the health of staff. Summary of the invention

[0005] The purpose of the present invention is to provide a high-voltage frequency converter control cabinet with a protection function to solve the above-mentioned problems in the prior art.

[0006] To achieve the above object, the present invention provides a high-voltage inverter control cabinet with a protective function, comprising a control cabinet, the control cabinet consisting of a cabinet body and a sealed door on the front side of the cabinet body, the left and right side walls of the cabinet body are symmetrically provided with ventilation windows, and the ventilation windows are provided with a high-temperature protection component for cooling the control cabinet;

[0007] The high temperature protection assembly includes a plurality of windshields regularly arranged up and down between the front and rear side walls of the ventilation window, a wind direction adjustment structure arranged on the rear side wall of the cabinet, a wind hood whose inner end is connected to the ventilation window on the corresponding side, and an air inlet tube whose inner end is connected to the outer end of the wind hood, a plate shaft penetrating front and back is provided in the middle of the windshield, the plate shaft is fixedly connected to the windshield, and the front end of the plate shaft is rotatably connected to the front side wall of the ventilation window;

[0008] The wind direction adjustment structure comprises a first motor fixed to the rear side wall of the cabinet near the bottom, and the first motor output shaft is provided with cables on the left and right sides, the rear end of the plate shaft passes through the rear side wall of the cabinet and the end is coaxially fixedly connected with a connecting roller, the upper and lower adjacent connecting rollers on the same side are connected by a connecting cable transmission, the lowermost connecting roller is connected to the cable on the same side, and the portion of the outer wall of the plate shaft located in the cabinet is sleeved with a clockwork spring;

[0009] A fan structure for sucking air from the outside is arranged in the air inlet cylinder, and the fan structure comprises a fan arranged in the middle section of the air inlet cylinder and a driving motor fixed on the outer wall of the air inlet cylinder on the corresponding side.

[0010] In the technical solution of the present invention, the left end of the left-side cable passes through the upper end of the corresponding connecting roller, and the right end passes through the lower side of the output shaft of the first motor. The left end of the right-side cable passes through the upper side of the output shaft of the first motor, and the right end passes through the upper end of the corresponding connecting roller. The first motor is driven counterclockwise.

[0011] In the technical solution of the present invention, the wind shield is arranged with the top inclined toward the inside and the bottom inclined toward the outside, the bottom end of the right connecting cable is fixed to the corresponding lower connecting roller, and the top end passes upward from the left side of the corresponding upper connecting roller, and the bottom end of the left connecting cable is fixed to the corresponding lower connecting roller, and the top end passes upward from the right side of the corresponding upper connecting roller.

[0012] In the technical solution of the present invention, a cleaning assembly is provided in the wind hood, and the cleaning assembly includes a connecting rod, a movable rod structure hinged to the outer end of the connecting rod, and a grille net for preventing external debris from being sucked in, and the grille net is fixed at the outer end of the air inlet tube.

[0013] In the technical solution of the present invention, a hinge seat is fixed in the middle of the outer wall of the windshield located in the middle position, close to the top, the inner end of the connecting rod is hinged to the corresponding hinge seat, and the movable rod structure includes a rod body, two limiting rods symmetrically fixed on the inner side of the outer wall of the rod body front and back, and two sliding rods.

[0014] In the technical solution of the present invention, the outer end of the sliding rod is embedded in the corresponding side inner wall of the wind hood and is slidably connected to the corresponding side inner wall of the wind hood. The limiting rod is inserted into the inner end of the sliding rod and the two are slidably connected. A spring is provided inside the sliding rod and between the limiting rod.

[0015] In the technical solution of the present invention, a movable groove is provided inside the rod body, a rotating rod is provided outside the rod body, a rotating part is provided at the inner end of the rotating rod, the rotating part is arranged in the movable groove, a spiral groove is provided on the side wall of the rotating part, and a locking ball is symmetrically provided on the upper and lower sides of the outer side of the movable groove, the locking ball is arranged in the corresponding spiral groove, and the number of spiral turns of the spiral groove is greater than one turn.

[0016] In the technical solution of the present invention, the outer end of the rotating rod passes through the grille net, and a cleaning brush is fixed to the outer end of the rotating rod, the cleaning brush is arranged perpendicular to the rotating rod and the inner side of the cleaning brush is in close contact with the outer side of the grille net.

[0017] In the technical solution of the present invention, a sleeve is coaxially fixed to the rear side of the fan shaft, and a gear set is provided on the sleeve. The gear set consists of two bevel gears that mesh vertically with each other, one bevel gear is coaxially fixed to the outer wall of the sleeve, and the other bevel gear is coaxially fixed to the output shaft of the drive motor.

[0018] In the technical solution of the present invention, the rotating rod coaxially passes through the corresponding side sleeve, the fan shaft and the grille mesh in sequence from the inside to the outside.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In the present invention, by setting a wind shield and a wind direction adjustment structure, when performing temperature reduction protection, the driving motor is turned on to drive the shaft sleeve to rotate through the gear group transmission to make the fan rotate to absorb air and cool down. At the same time, the first motor is turned on to drive the bottom connecting roller to rotate through the cable to drive the air vent to rotate. When the bottom connecting roller rotates, the plate shaft on the same side will be driven to rotate synchronously through the connecting cable, thereby making all wind shields rotate synchronously, so that the air inlet angle changes and the temperature reduction dead angle is reduced.

[0021] 2. In the present invention, by setting a cleaning component, when the wind shield rotates, it will pull the connecting rod to move inward and drive the connecting rod to push and pull linear motion. At the same time, the card ball moves linearly synchronously with the connecting rod, and drives the rotating part to rotate under the action of the spiral groove, and drives the rotating rod to rotate, and ensures that the rotating rod rotates at least one circle. When the rotating rod rotates, it drives the cleaning brush to rotate, and then cleans the dust and other debris on the surface of the grille to avoid the debris blocking the air intake effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the interior of the cabinet in the present invention;

[0025] Figure 4 It is a schematic diagram of the wind direction adjustment structure in the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 It is a cross-sectional view of the stroke shield of the present invention;

[0028] Figure 7 It is a schematic diagram of the cleaning component in the present invention;

[0029] Figure 8 It is a schematic diagram of the cleaning brush in the present invention;

[0030] Fig. 9 It is a cross-sectional view of a movable part in the present invention;

[0031] Fig.10 It is a cross-sectional view of the fan structure in the present invention;

[0032] Description of reference numerals:

[0033] 1. Control cabinet; 11. Cabinet body; 12. Sealed door; 13. Ventilation window;

[0034] 2. High temperature protection assembly; 21. Wind deflector; 211. Plate shaft; 212. Articulated seat; 22. Wind direction adjustment structure; 221. Cable; 222. Connecting roller; 223. Connecting cable; 224. First motor; 23. Wind hood; 24. Air inlet tube; 25. Fan structure; 251. Fan; 252. Driving motor; 253. Gear set; 254. Bushing; 26. Spring;

[0035] 3. Cleaning assembly; 31. Connecting rod; 32. Movable rod structure; 321. Rod body; 322. Movable groove; 323. Cardan ball; 324. Limiting rod; 325. Sliding rod; 326. Spring; 33. Rotating rod; 331. Rotating part; 332. Spiral groove; 34. Grille; 35. Cleaning brush. DETAILED DESCRIPTION

[0036] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0037] Unless explicitly stated otherwise, throughout the specification, the term “comprise” or variations thereof such as “include” or “comprising” will be understood as including the stated elements or components but not excluding other elements or components.

[0038] Reference Figure 1-Figure 10 As shown, this embodiment provides a technical solution:

[0039] A high-voltage inverter control cabinet with a protective function comprises a control cabinet 1, wherein the control cabinet 1 is composed of a cabinet body 11 and a sealed door 12 on the front side of the cabinet body 11, and ventilation windows 13 are symmetrically provided on the left and right side walls of the cabinet body 11, and a high-temperature protection component 2 for cooling the control cabinet 1 is provided on the ventilation window 13. The high-temperature protection component 2 is provided to cool the interior of the high-voltage inverter control cabinet to prevent damage to internal parts caused by excessive temperature;

[0040] The high temperature protection component 2 includes a plurality of windshields 21 regularly arranged between the front and rear side walls of the ventilation window 13, a wind direction adjustment structure 22 arranged on the rear side wall of the cabinet 11, a wind cover 23 whose inner end is connected to the corresponding side ventilation window 13, and an air inlet 24 whose inner end is connected to the outer end of the wind cover 23. A plate shaft 211 is provided in the middle of the windshield 21 and passes through the front and rear. The plate shaft 211 is fixedly connected to the windshield 21, and the front end of the plate shaft 211 is rotatably connected to the front side wall of the ventilation window 13. The plate shaft 211 drives the windshield 21 to rotate, thereby changing the wind direction of the air sucked in by the fan structure 25, so that the inside of the cabinet 11 can be blown by the cold wind from the outside, reducing the dead corner of cooling.

[0041] The wind direction adjustment structure 22 includes a first motor 224 fixed to the bottom of the rear side wall of the cabinet 11, and the left and right output shafts of the first motor 224 are provided with cables 221. The rear end of the plate shaft 211 passes through the rear side wall of the cabinet 11 and the end is coaxially fixedly connected with a connecting roller 222. The two upper and lower adjacent connecting rollers 222 on the same side are connected by a connecting cable 223. The lowermost connecting roller 222 is connected to the cable 221 on the same side. A spring 26 is sleeved on the outer wall of the plate shaft 211 located inside the cabinet 11. According to actual conditions, when it is necessary to change the air inlet angle, the first motor 224 is turned on to drive the lowermost connecting roller 222 to rotate through the cable 221 to drive the air vent 13 to rotate. When the lowermost connecting roller 222 rotates, the plate shaft 211 on the same side will be driven to rotate synchronously through the connecting cable 223, thereby causing all the wind deflectors 21 to rotate synchronously to change the air inlet angle. In addition, the spring 26 helps the wind deflector 21 to reset when rotating.

[0042] A fan structure 25 for sucking air from the outside is provided in the air inlet 24. The fan structure 25 includes a fan 251 arranged in the middle section of the air inlet 24 and a drive motor 252 fixed to the outer wall of the corresponding side air inlet 24. The drive motor 252 drives the fan 251 to rotate to suck air for cooling.

[0043] Specifically, Figure 4-Figure 5 As shown, the left end of the left cable 221 passes through the upper end of the corresponding connecting roller 222, and the right end passes through the lower side of the output shaft of the first motor 224. The left end of the right cable 221 passes through the upper side of the output shaft of the first motor 224, and the right end passes through the upper end of the corresponding connecting roller 222. The first motor 224 is driven counterclockwise to ensure that the cables 221 on both sides are tightened at the same time when the first motor 224 rotates counterclockwise.

[0044] Furthermore, the wind shield 21 is arranged with the top inclined toward the inside and the bottom inclined toward the outside. The bottom end of the right connecting rope 223 is fixed to the corresponding lower connecting roller 222, and the top end passes upward from the left side of the corresponding upper connecting roller 222. The bottom end of the left connecting rope 223 is fixed to the corresponding lower connecting roller 222, and the top end passes upward from the right side of the corresponding upper connecting roller 222. When the cables 221 on both sides are synchronously tightened, the connecting roller 222 on the left rotates clockwise and the connecting roller 222 on the right rotates counterclockwise. The connecting ropes 223 arranged in this way ensure that the connecting rollers 222 on the same side rotate in the same direction, thereby driving the wind shield 21 to change its angle synchronously.

[0045] In addition, if Figure 6-Figure 9 As shown, a cleaning assembly 3 is provided in the wind cover 23, and the cleaning assembly 3 includes a connecting rod 31, a movable rod structure 32 hinged to the outer end of the connecting rod 31, and a grille 34 for preventing external debris from being sucked in. The grille 34 is fixed at the outer end of the air inlet 24. The grille 34 is provided to block external debris, so as to prevent debris from entering and damaging the fan structure 25 or the internal parts of the inverter control cabinet when the air is sucked in for cooling.

[0046] Furthermore, a hinge seat 212 is fixed at the top of the middle outer wall of the windshield 21 at the middle position, and the inner end of the connecting rod 31 is hinged to the corresponding hinge seat 212. The movable rod structure 32 includes a rod body 321, two limit rods 324 symmetrically fixed to the inner side of the outer wall of the rod body 321, and two sliding rods 325. When the windshield 21 rotates to change the angle, the connecting rod 31 is pulled to move inward, and at the same time, the two ends of the connecting rod 31 are hinged to prevent the connecting rod 31 from blocking the rotation of the windshield 21.

[0047] The cam 324 is inserted into the inner end of the sliding rod 325 and the two are slidably connected. A spring 326 is provided between the sliding rod 325 and the limiting rod 324. The limiting rod 324 will limit the rotation of the rod body 321, so that the rod body 321 can only be pushed and pulled by the connecting rod 31 for linear motion. At the same time, the sliding rod 325 and the limiting rod 324 are slidably connected. When the rod body 321 moves linearly, the existence of the cam 23 is prevented from blocking the sliding of the rod body 321. The spring 326 helps the limiting rod 324 to reset.

[0048] Furthermore, a movable groove 322 is provided inside the rod body 321, a rotating rod 33 is provided outside the rod body 321, a rotating portion 331 is provided at the inner end of the rotating rod 33, the rotating portion 331 is arranged in the movable groove 322, a spiral groove 332 is provided on the side wall of the rotating portion 331, and a clamping ball 323 is symmetrically provided up and down on the outer side of the movable groove 322, and the clamping ball 323 is arranged in the corresponding spiral groove 332. When the rod body 321 moves linearly left and right, the clamping ball 323 will move linearly synchronously. Since the clamping ball 323 is clamped with the spiral groove 332, the linear movement of the clamping ball 323 will drive the rotating portion 331 to rotate and drive the rotating rod 33 to rotate. The number of spiral turns of the spiral groove 332 is greater than one circle, ensuring that the rotating rod 33 rotates at least one circle.

[0049] Specifically, the outer end of the rotating rod 33 passes through the grille 34, and a cleaning brush 35 is fixed to the outer end of the rotating rod 33. The cleaning brush 35 is arranged perpendicular to the rotating rod 33, and the inner side of the cleaning brush 35 is in close contact with the outer side of the grille 34. When the rotating rod 33 rotates, the cleaning brush 35 is driven to rotate, thereby cleaning the dust and other debris on the surface of the grille 34.

[0050] In addition, if Fig.10 As shown, a shaft sleeve 254 is coaxially fixed to the rear side of the fan shaft of the fan 251, and a gear set 253 is provided on the shaft sleeve 254. The gear set 253 is composed of two bevel gears that mesh vertically with each other, one bevel gear is coaxially fixed to the outer wall of the shaft sleeve 254, and the other bevel gear is coaxially fixed to the output shaft of the driving motor 252. The driving motor 252 drives the fan 251 to rotate through the gear set 253 to absorb air and cool down;

[0051] Furthermore, the rotating rod 33 coaxially passes through the corresponding side shaft sleeve 254, the fan shaft of the fan 251 and the grille mesh 34 from the inside to the outside. By setting the shaft sleeve 254, the rotating rod 33 passes through the fan shaft of the fan 251 to prevent the fan 251 from blocking the rotating rod 33.

[0052] The working principle of the high-voltage inverter control cabinet with protection function of the present invention is specifically as follows:

[0053] When the high-voltage inverter needs to be cooled and protected, the drive motor 252 is turned on to drive the shaft sleeve 254 to rotate through the gear set 253, so that the fan 251 rotates to absorb air and cool down;

[0054] At the same time, the first motor 224 is turned on to drive the bottom connecting roller 222 to rotate through the cable 221, thereby driving the ventilation window 13 to rotate. When the bottom connecting roller 222 rotates, the connecting cable 223 drives the plate shaft 211 on the same side to rotate synchronously, thereby causing all windshield plates 21 to rotate synchronously, thereby changing the air inlet angle and reducing the temperature reduction dead angle.

[0055] When the wind deflector 21 rotates, it will pull the connecting rod 31 to move inward. Under the restriction of the limit rod 324, the rod body 321 will only be pushed and pulled by the connecting rod 31 for linear motion. When the rod body 321 moves linearly left and right, the locking ball 323 will move linearly synchronously. Since the locking ball 323 is engaged with the spiral groove 332, the linear motion of the locking ball 323 will drive the rotating part 331 to rotate and drive the rotating rod 33 to rotate, and ensure that the rotating rod 33 rotates at least one circle. When the rotating rod 33 rotates, it drives the cleaning brush 35 to rotate, thereby cleaning the dust and other debris on the surface of the grille 34.

[0056] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations are made in accordance with the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A high-voltage inverter control cabinet with a protective function, comprising a control cabinet (1), wherein the control cabinet (1) is composed of a cabinet body (11) and a sealed door (12) on the front side of the cabinet body (11), and is characterized in that: The left and right side walls of the cabinet body (11) are symmetrically provided with ventilation windows (13), and the ventilation windows (13) are provided with a high temperature protection component (2) for cooling the control cabinet (1); The high temperature protection component (2) comprises a plurality of windshields (21) regularly arranged up and down between the front and rear side walls of the ventilation window (13), a wind direction adjustment structure (22) arranged on the rear side wall of the cabinet (11), a wind cover (23) whose inner end is connected to the ventilation window (13) on the corresponding side, and an air inlet tube (24) whose inner end is connected to the outer end of the wind cover (23), wherein a plate shaft (211) penetrating front and rear is provided in the middle of the windshield (21), the plate shaft (211) is fixedly connected to the windshield (21), and the front end of the plate shaft (211) is rotatably connected to the front side wall of the ventilation window (13); The wind direction adjustment structure (22) comprises a first motor (224) fixed to the bottom of the rear side wall of the cabinet (11), and a cable (221) is provided on the left and right sides of the output shaft of the first motor (224); the rear end of the plate shaft (211) passes through the rear side wall of the cabinet (11) and the end is coaxially fixedly connected to a connecting roller (222); two adjacent connecting rollers (222) on the same side are connected by a connecting cable (223); the lowest connecting roller (222) is connected by a connecting cable (221) on the same side; and a spring (26) is sleeved on a portion of the outer wall of the plate shaft (211) located inside the cabinet (11); A fan structure (25) for sucking air from the outside is provided in the air inlet cylinder (24), and the fan structure (25) comprises a fan (251) arranged in the middle section of the air inlet cylinder (24) and a drive motor (252) fixed to the outer wall of the air inlet cylinder (24) on the corresponding side; A cleaning assembly (3) is provided in the wind shield (23), the cleaning assembly (3) comprising a connecting rod (31), a movable rod structure (32) hinged to the outer end of the connecting rod (31), and a grille net (34) for preventing external debris from being sucked in, the grille net (34) being fixed inside the air inlet cylinder (24) at the outer end; A hinge seat (212) is fixed in the middle of the outer wall of the windshield (21) at the middle position, close to the top; the inner end of the connecting rod (31) is hinged to the corresponding hinge seat (212); the movable rod structure (32) comprises a rod body (321), two limit rods (324) symmetrically fixed to the inner side of the outer wall of the rod body (321) in the front and rear directions, and two sliding rods (325); The outer end of the sliding rod (325) is embedded in the inner wall of the corresponding side of the wind shield (23) and is slidably connected to the inner wall of the corresponding side of the wind shield (23); the limiting rod (324) is inserted into the inner end of the sliding rod (325) and the two are slidably connected; a spring (326) is provided between the sliding rod (325) and the limiting rod (324); A movable groove (322) is provided inside the rod body (321), a rotating rod (33) is provided outside the rod body (321), a rotating portion (331) is provided at the inner end of the rotating rod (33), the rotating portion (331) is arranged inside the movable groove (322), a spiral groove (332) is provided on the side wall of the rotating portion (331), a locking ball (323) is symmetrically provided up and down inside the movable groove (322), the locking ball (323) is arranged in a corresponding spiral groove (332), and the number of spiral turns of the spiral groove (332) is greater than one turn; The outer end of the rotating rod (33) passes through the grille net (34), and a cleaning brush (35) is fixed to the outer end of the rotating rod (33), the cleaning brush (35) is arranged perpendicular to the rotating rod (33), and the inner side of the cleaning brush (35) is in close contact with the outer side of the grille net (34).

2. The high-voltage inverter control cabinet with protection function as claimed in claim 1, characterized in that: The left end of the left-side cable (221) passes through the upper end of the corresponding connecting roller (222), and the right end passes through the lower side of the output shaft of the first motor (224); the left end of the right-side cable (221) passes through the upper side of the output shaft of the first motor (224), and the right end passes through the upper end of the corresponding connecting roller (222); the first motor (224) is driven counterclockwise.

3. The high-voltage inverter control cabinet with protection function as claimed in claim 1, characterized in that: The windshield (21) is arranged with the top inclined toward the inside and the bottom inclined toward the outside; the bottom end of the right connecting rope (223) is fixed to the corresponding lower connecting roller (222), and the top end passes upward from the left side of the corresponding upper connecting roller (222); the bottom end of the left connecting rope (223) is fixed to the corresponding lower connecting roller (222), and the top end passes upward from the right side of the corresponding upper connecting roller (222).

4. The high-voltage inverter control cabinet with protection function as claimed in claim 3, characterized in that: A shaft sleeve (254) is coaxially fixed to the rear side of the fan shaft of the fan (251), and a gear set (253) is provided on the shaft sleeve (254). The gear set (253) is composed of two bevel gears that mesh perpendicularly with each other, one of the bevel gears being coaxially fixed to the outer wall of the shaft sleeve (254), and the other bevel gear being coaxially fixed to the output shaft of the drive motor (252).

5. The high-voltage inverter control cabinet with protection function as claimed in claim 4, characterized in that: The rotating rod (33) coaxially passes through the shaft sleeve (254) on the corresponding side, the fan shaft of the fan (251), and the grille (34) in sequence from the inside to the outside.

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