High-voltage frequency converter control box

Abstract

The utility model discloses a high-voltage frequency converter control box, and relates to the technical field of high-voltage frequency converters. The high-voltage frequency converter control box comprises a high-voltage frequency converter control box body, a driving device and a dust removal device, the dust removal device comprises a belt, a second rotating rod, a first gear, a second gear, a third rotating rod and a cam, the second rotating rod is rotationally connected with a second mounting frame, and the belt is arranged between the rotating rod and the second rotating rod; a first gear fixedly sleeves the outer surface of a second rotating rod, a second gear fixedly sleeves the outer surface of a third rotating rod, a cam fixedly sleeves the outer surface of the third rotating rod, dust on the dustproof net frame can be automatically cleaned through the arrangement of a dust removal device, and the heat dissipation effect of the device is guaranteed; the problems that dust easily enters a heat dissipation opening, the service life of internal electronic elements is affected, dust on the surface of a dustproof net is accumulated when the dustproof net is arranged on the heat dissipation opening, and the heat dissipation efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage frequency converters, and particularly relates to a control box for a high-voltage frequency converter. Background Art

[0002] A frequency converter is a power control device that uses the on-off action of power semiconductor devices to convert the power frequency power supply into electrical energy of another frequency. With the rapid development of modern power electronics technology and microelectronics technology, high-voltage high-power variable-frequency speed regulation devices have become increasingly mature. The high-voltage problem that has been difficult to solve has been well solved in recent years through device series connection or unit series connection. A device that converts alternating current with a fixed voltage and frequency into alternating current with a variable voltage or frequency is called a "frequency converter". This device first converts three-phase or single-phase alternating current into direct current, and then converts the direct current into three-phase or single-phase alternating current.

[0003] In the existing high-voltage frequency converters, heat dissipation openings are generally provided on the cabinet door to achieve the purpose of heat dissipation. However, in windy outdoor environments, dust is very likely to enter through the heat dissipation openings, affecting the service life of internal electronic components. Setting a dust-proof net on the heat dissipation openings will cause dust accumulation on the surface of the dust-proof net, reducing the heat dissipation efficiency. Therefore, a control box for a high-voltage frequency converter with stable heat dissipation is needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a control box for a high-voltage frequency converter, which can solve the problems that dust is very likely to enter through the heat dissipation openings, affecting the service life of internal electronic components, and setting a dust-proof net on the heat dissipation openings will cause dust accumulation on the surface of the dust-proof net, reducing the heat dissipation efficiency.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A high-voltage frequency converter control box, including a high-voltage frequency converter control box, a driving device and a dust removal device. The top of the high-voltage frequency converter control box is fixedly connected with a top plate. The driving device is located on the top of the top plate. The driving device includes a first mounting frame, a second mounting frame, a first fan blade, a second fan blade, a connecting rod and a rotating rod. The first mounting frame is fixedly connected to the top of the top plate. The second mounting frame is fixedly connected to the top of the top plate. The first fan blade is arranged inside the first mounting frame. The bracket on the first fan blade is fixedly connected to the first mounting frame. The second fan blade is arranged inside the second mounting frame. The bracket on the second fan blade is fixedly connected to the second mounting frame. The connecting rod is fixedly connected between the rotating shafts of the first fan blade and the second fan blade. The rotating rod is fixedly connected to the rotating shaft of the second fan blade. The dust removal device includes a belt, a second rotating rod, a first gear, a second gear, a third rotating rod and a cam. The second rotating rod is rotatably connected to the second mounting frame. The belt is sleeved on the pulley sleeved on the outer surfaces of the rotating rod and the second rotating rod. The first gear is fixedly sleeved on the outer surface of the second rotating rod. The third rotating rod is rotatably connected to the high-voltage frequency converter control box. The second gear is fixedly sleeved on the outer surface of the third rotating rod. The cam is fixedly sleeved on the outer surface of the third rotating rod. The second gear is fixedly connected to the third rotating rod.

[0006] Preferably, a dust-proof net frame is slidably connected to the surface of the high-voltage frequency converter control box, and the dust-proof net frame is in contact with the cam.

[0007] Preferably, a mounting plate is fixedly connected to the surface of the high-voltage frequency converter control box, and a plurality of springs are fixedly connected to the top of the mounting plate. The top of each spring is fixedly connected to the dust-proof net frame.

[0008] Preferably, a sliding groove for the dust-proof net frame to slide is provided on the surface of the high-voltage frequency converter control box.

[0009] Preferably, a control box door is provided on the surface of the high-voltage frequency converter control box.

[0010] Preferably, a heat dissipation port is provided on the surface of the high-voltage frequency converter control box, and the heat dissipation port is located on one side of the high-voltage frequency converter control box close to the dust-proof net frame.

[0011] Preferably, a rotating rod bracket is fixedly connected to the top of the top plate, and the second rotating rod is rotatably connected to the rotating rod bracket.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The high-voltage frequency converter control box can automatically clean the dust on the dust-proof net frame through the setting of the dust removal device, avoiding the accumulation of dust and blocking the dust-proof net holes, ensuring the heat dissipation effect of the device, solving the problem that dust is very easy to enter through the heat dissipation port, affecting the service life of internal electronic components, and the accumulation of dust on the surface of the dust-proof net will reduce the heat dissipation efficiency when the dust-proof net is set on the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the body of the present utility model;

[0016] Figure 2 It is a schematic diagram of the driving device of the present utility model;

[0017] Figure 3 For the present utility model Figure 1 Schematic diagram at position A;

[0018] Figure 4 For the present utility model Figure 1 Schematic diagram at position B;

[0019] Figure 5 For the present utility model Figure 2 Schematic diagram at position C.

[0020] Reference numerals: 1. High-voltage frequency converter control box; 2. Control box door; 3. Top plate; 4. First mounting bracket; 5. Second mounting bracket; 6. First fan blade; 7. Second fan blade; 8. Connecting rod; 9. Rotating rod; 10. Belt; 11. Second rotating rod; 12. First gear; 13. Rotating rod bracket; 14. Second gear; 15. Third rotating rod; 16. Cam; 17. Dust-proof net frame; 18. Chute; 19. Mounting plate; 20. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a high-voltage frequency converter control box, including a high-voltage frequency converter control box 1, a driving device and a dust removal device. A top plate 3 is fixedly connected to the top of the high-voltage frequency converter control box 1. The driving device is located on the top of the top plate 3. The driving device includes a first mounting bracket 4, a second mounting bracket 5, a first fan blade 6, a second fan blade 7, a connecting rod 8 and a rotating rod 9. The first mounting bracket 4 is fixedly connected to the top of the top plate 3. The second mounting bracket 5 is fixedly connected to the top of the top plate 3. The first fan blade 6 is arranged inside the first mounting bracket 4. The bracket on the first fan blade 6 is fixedly connected to the first mounting bracket 4. The second fan blade 7 is arranged inside the second mounting bracket 5. The bracket on the second fan blade 7 is fixedly connected to the second mounting bracket 5. The connecting rod 8 is fixedly connected between the rotating shafts of the first fan blade 6 and the second fan blade 7. The rotating rod 9 is fixedly connected to the rotating shaft of the second fan blade 7. When the wind blows through the first fan blade 6 and the second fan blade 7, the fan blades rotate and drive the rotating rod 9 to rotate, providing power for subsequent cleaning operations. The operation of the driving device is driven by wind power, which is green, environmentally friendly and energy-saving. The connecting rod 8 is located between the first fan blade 6 and the second fan blade 7, which can improve the rotational force of the rotating rod 9.

[0026] Further, the dust removal device includes a belt 10, a second rotating rod 11, a first gear 12, a second gear 14, a third rotating rod 15, and a cam 16. The second rotating rod 11 is rotatably connected to the second mounting bracket 5. The belt 10 is arranged on the pulleys sleeved on the outer surfaces of the rotating rod 9 and the second rotating rod 11. The first gear 12 is fixedly sleeved on the outer surface of the second rotating rod 11. The third rotating rod 15 is rotatably connected to the high-voltage frequency converter control box 1. The second gear 14 is fixedly sleeved on the outer surface of the third rotating rod 15. The cam 16 is fixedly sleeved on the outer surface of the third rotating rod 15. The second gear 14 is fixedly connected to the third rotating rod 15. A rotating rod bracket 13 is fixedly connected to the top of the top plate 3. The second rotating rod 11 is rotatably connected to the rotating rod bracket 13. The driving device rotates the rotating rod 9, drives the second rotating rod 11 to rotate through the action of the belt 10, and then drives the first gear 12 and the second gear 14 to rotate, enabling the cam 16 to continuously knock on the top of the dust-proof net frame 17 periodically, causing the dust on the dust-proof net to fall. Through the setting of the dust removal device, the dust on the dust-proof net frame 17 can be automatically cleaned, preventing dust accumulation and blocking the dust-proof net holes, ensuring the heat dissipation effect of the device, solving the problem that dust easily enters through the heat dissipation port, affecting the service life of internal electronic components, and the dust accumulation on the surface of the dust-proof net will reduce the heat dissipation efficiency when a dust-proof net is set on the heat dissipation port.

[0027] Furthermore, a dust-proof net frame 17 is slidably connected to the surface of the high-voltage frequency converter control box 1. The dust-proof net frame 17 is in contact with the cam 16. A mounting plate 19 is fixedly connected to the surface of the high-voltage frequency converter control box 1. A plurality of springs 20 are fixedly connected to the top of the mounting plate 19. The top of each spring 20 is fixedly connected to the dust-proof net frame 17. A sliding groove 18 for the dust-proof net frame 17 to slide is formed on the surface of the high-voltage frequency converter control box 1. Through the action of the springs 20, the vibration amplitude of the dust-proof net frame 17 when being knocked by the cam 16 can be increased, strengthening the dust removal effect.

[0028] Secondly, a control box door 2 is arranged on the surface of the high-voltage frequency converter control box 1. A heat dissipation port is formed on the surface of the high-voltage frequency converter control box 1. The heat dissipation port is located on one side of the high-voltage frequency converter control box 1 close to the dust-proof net frame 17. The dust-proof net frame 17 completely blocks the heat dissipation port, and the heat dissipation port will not be exposed even when the dust-proof net frame 17 vibrates up and down, ensuring the dust-proof effect.

[0029] Working principle: When the wind blows through the first fan blade 6 and the second fan blade 7, the fan blades rotate and drive the rotating rod 9 to rotate. Through the action of the belt 10, the second rotating rod 11 is driven to rotate, and then the first gear 12 and the second gear 14 are driven to rotate, so that the cam 16 can continuously knock the top of the dust-proof net frame 17 periodically, causing the dust on the dust-proof net to fall. Through the setting of the dust removal device, the dust on the dust-proof net frame 17 can be automatically cleaned. Through the action of the spring 20, the vibration amplitude of the dust-proof net frame 17 when being knocked by the cam 16 can be increased, enhancing the dust removal effect.

[0030] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present utility model.

Claims

1. A high voltage inverter control box, characterized in that: include: A high-voltage frequency converter control box (1), the top of which is fixedly connected to a top plate (3); A driving device, the driving device is located at the top of the top plate (3), the driving device comprises a first mounting frame (4), a second mounting frame (5), a first fan blade (6), a second fan blade (7), a connecting rod (8) and a rotating rod (9), the first mounting frame (4) is fixedly connected to the top of the top plate (3), the second mounting frame (5) is fixedly connected to the top of the top plate (3), the first fan blade (6) is arranged inside the first mounting frame (4), the bracket on the first fan blade (6) is fixedly connected to the first mounting frame (4), the second fan blade (7) is arranged inside the second mounting frame (5), the bracket on the second fan blade (7) is fixedly connected to the second mounting frame (5), the connecting rod (8) is fixedly connected between the rotating shafts on the first fan blade (6) and the second fan blade (7), and the rotating rod (9) is fixedly connected to the rotating shaft of the second fan blade (7); The dust removal device comprises a belt (10), a second rotating rod (11), a first gear (12), a second gear (14), a third rotating rod (15) and a cam (16); the second rotating rod (11) is rotatably connected to the second mounting frame (5); the belt (10) is arranged on a pulley sleeved on the outer surface of the rotating rod (9) and the second rotating rod (11); the first gear (12) is fixedly sleeved on the outer surface of the second rotating rod (11); the third rotating rod (15) is rotatably connected to the high-voltage inverter control box (1); the second gear (14) is fixedly sleeved on the outer surface of the third rotating rod (15); the cam (16) is fixedly sleeved on the outer surface of the third rotating rod (15); and the second gear (14) is fixedly sleeved on the third rotating rod (15).

2. A high voltage inverter control box according to claim 1, characterized in that: A dustproof net frame (17) is slidably connected to the surface of the high-voltage frequency converter control box (1), and the dustproof net frame (17) is in contact with the cam (16).

3. A high voltage inverter control box according to claim 2, characterized in that: A mounting plate (19) is fixedly connected to the surface of the high-voltage frequency converter control box (1), a plurality of springs (20) are fixedly connected to the top of the mounting plate (19), and the top of each spring (20) is fixedly connected to the dustproof net frame (17).

4. A high voltage inverter control box according to claim 3, characterized in that: The surface of the high-voltage frequency converter control box (1) is provided with a sliding groove (18) for the dustproof net frame (17) to slide.

5. A high voltage inverter control box according to claim 4, characterized in that: A control box door (2) is provided on the surface of the high-voltage frequency converter control box (1).

6. A high voltage inverter control box according to claim 5, characterized in that: A heat dissipation opening is provided on the surface of the high-voltage frequency converter control box (1), and the heat dissipation opening is located on a side of the high-voltage frequency converter control box (1) close to the dustproof net frame (17).

7. A high voltage frequency converter control box according to claim 6, characterized in that: A rotating rod bracket (13) is fixedly connected to the top of the top plate (3), and the second rotating rod (11) is rotatably connected to the rotating rod bracket (13).

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