Automatic switching type high-voltage frequency converter

Abstract

The utility model discloses an automatic switching type high-voltage frequency converter, which belongs to the field of high-voltage frequency converters and comprises a frequency converter body and an air inlet arranged on the frequency converter body, and a radiating panel is arranged in the air inlet. The automatic switching type high-voltage frequency converter is simple in structure and convenient to use, the filling frame and the cross-shaped stirring plate are arranged, activated carbon particles can effectively adsorb moisture in air in the filling frame, air entering through the air inlet is dehumidified when flowing through the activated carbon particles, it is ensured that the air entering the frequency converter body is dry enough, and the air quality is improved. The driving mechanism is started to drive the cross stirring plate to rotate, activated carbon particles in the filling frame can be fully used, the activated carbon particles can be uniformly distributed through stirring, the surface area and the adsorption efficiency of the activated carbon particles are improved, and the service life of the device is prolonged. The service life of activated carbon is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage frequency converters, in particular to an automatic switching high-voltage frequency converter. Background Art

[0002] A high-voltage inverter is a power control device that mainly uses the on-off function of power semiconductor devices to convert industrial frequency power into electrical energy of another frequency. High-voltage inverters are usually used to control high-voltage motors, and their rated voltage is generally between 3kV and 10kV.

[0003] Upon investigation, the Chinese utility model patent with publication number CN210007613U discloses an automatic dehumidification high-voltage inverter cabinet, including a bypass cabinet, a transformer cabinet and a power unit cabinet, and the bypass cabinet and the power unit cabinet are respectively fixedly arranged on both sides of the transformer cabinet; a first external exhaust hood is fixedly arranged on the top of the transformer cabinet, and a first dehumidification cooling fan is arranged in the inner cavity of the first external exhaust hood, the first dehumidification cooling fan is fixedly arranged on the top of the transformer cabinet and the input end of the first dehumidification cooling fan extends into the inner cavity of the transformer cabinet; a second external exhaust hood is fixedly arranged on the top of the power unit cabinet, and a second dehumidification cooling fan is arranged in the inner cavity of the second external exhaust hood.

[0004] The above-mentioned high-voltage frequency converter cabinet can effectively ensure the smooth startup of the high-voltage frequency converter under the condition of high ambient humidity, reduce the frequency converter's electrical failure downtime rate, and ensure the company's production continuity; however, when it is used in a humid environment, humid gas can enter the frequency converter cabinet through the dustproof air inlet, which will have a certain impact on the electronic devices in the frequency converter cabinet, posing certain safety hazards.

[0005] Therefore, the utility model provides an automatic switching high voltage inverter to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The utility model provides an automatic switching high-voltage frequency converter, aiming to solve the problems in the background technology that the existing frequency conversion cabinet has certain hidden dangers after the moist gas enters.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic switching high-voltage inverter, comprising an inverter body and an air inlet opened on the inverter body, a heat dissipation panel is arranged in the air inlet, an industrial frequency switching box is fixedly installed on the inverter body, a filling frame is arranged on the heat dissipation panel, the filling frame is filled with activated carbon particles, a connecting plate is symmetrically installed at one end of the filling frame away from the heat dissipation panel, a filter screen is fixedly installed between two adjacent connecting plates and between the connecting plate and the filling frame, a cross stirring plate is rotatably installed on the connecting plate, and a driving mechanism is arranged on the connecting plate.

[0010] Preferably, the driving mechanism includes a driven wheel rotatably mounted on the connecting plate, a synchronous belt sleeved on the driven wheel, and a driving motor fixedly mounted on the connecting plate, the output end of the driving motor is fixedly connected to the driven wheel, and the rotating end of the cross stirring plate is fixedly connected to the driven wheel.

[0011] Preferably, stirring rods are fixedly mounted at the four corners of the cross stirring plate.

[0012] Preferably, two groups of card slots are symmetrically provided on the heat dissipation panel, and two groups of card blocks adapted to the card slots are symmetrically mounted on the filling frame.

[0013] Preferably, a mounting edge matched with the heat dissipation panel is fixedly installed in the air inlet, and matching connecting magnetic sheets are fixedly installed on both the mounting edge and the heat dissipation panel.

[0014] Preferably, a spiral groove is provided on the stirring rod.

[0015] Preferably, the cross-sectional shapes of the card slot and the card block are both trapezoidal.

[0016] Preferably, a base is fixedly mounted on the bottom of the inverter body, and the base is filled with moisture-proof cotton.

[0017] Preferably, a heat dissipation port adapted to the air inlet is provided at one end of the inverter body away from the base, and a heat dissipation fan is provided in the heat dissipation port.

[0018] Preferably, a wiring port is provided at one end of the inverter body away from the base.

[0019] (III) Beneficial effects

[0020] The automatic switching high-voltage inverter has a simple structure and is easy to use. By arranging a filling frame and a cross stirring plate, the activated carbon particles in the filling frame can effectively absorb moisture in the air. The gas entering through the air inlet is dehumidified when flowing through the activated carbon particles, ensuring that the gas entering the inverter body is sufficiently dry, which helps to protect the internal circuits and components of the inverter and improves the stability and reliability of the equipment. Turning on the driving mechanism to drive the cross stirring plate to rotate can make full use of the activated carbon particles in the filling frame. The activated carbon particles can be evenly distributed through stirring, thereby increasing their surface area and adsorption efficiency and extending the service life of the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an automatic switching high-voltage inverter;

[0022] Figure 2 It is a schematic diagram of the heat dissipation panel and filling frame structure of an automatic switching high-voltage inverter;

[0023] Figure 3 A multi-angle structural schematic diagram of a heat dissipation panel and a filling frame of an automatic switching high-voltage inverter;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure at point A.

[0025] In the figure: 1. inverter body; 11. base; 12. air inlet; 13. heat dissipation port; 14. wiring port; 2. power frequency switching box; 3. heat dissipation panel; 31. card slot; 32. connecting magnetic sheet; 4. filling frame; 41. connecting plate; 42. filter; 43. cross stirring plate; 431. stirring rod; 44. driving mechanism; 441. driven wheel; 442. synchronous belt; 443. driving motor; 45. card block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides an automatic switching high voltage frequency converter, such as Figure 1-4As shown, the high-voltage inverter includes an inverter body 1 and an air inlet 12 opened on the inverter body 1, a heat dissipation panel 3 is arranged in the air inlet 12, an industrial frequency switching box 2 is fixedly installed on the inverter body 1, a filling frame 4 is arranged on the heat dissipation panel 3, the filling frame 4 is filled with activated carbon particles, a connecting plate 41 is symmetrically installed at one end of the filling frame 4 away from the heat dissipation panel 3, a filter screen 42 is fixedly installed between two adjacent connecting plates 41 and between the connecting plate 41 and the filling frame 4, a cross stirring plate 43 is rotatably installed on the connecting plate 41, and a driving mechanism 44 is arranged on the connecting plate 41.

[0028] When in use, the industrial frequency switching box 2 can meet the requirement of automatically switching to the industrial frequency circuit operation in the event of a frequency conversion device failure, and also has the program PLC to realize the function of automatic switching between frequency conversion and industrial frequency. The gas can enter the inverter body 1 through the heat dissipation panel 3 in the air inlet 12, and the gas can be dehumidified through the activated carbon particles in the filling frame 4 when flowing through the air inlet 12, ensuring that the gas entering the inverter body 1 is sufficiently dry. At the same time, the cross stirring plate 43 can be driven to rotate by turning on the driving mechanism 44 to stir the activated carbon particles in the filling frame 4, ensuring that the activated carbon particles in the filling frame 4 can be fully utilized.

[0029] Specifically, the driving mechanism 44 includes a driven wheel 441 rotatably mounted on the connecting plate 41, a synchronous belt 442 mounted on the driven wheel 441, and a driving motor 443 fixedly mounted on the connecting plate 41, the output end of the driving motor 443 is fixedly connected to the driven wheel 441, and the rotating end of the cross stirring plate 43 is fixedly connected to the driven wheel 441; when the driving motor 443 is turned on, it can drive one driven wheel 441 to rotate, and the two driven wheels 441 are transmitted through the synchronous belt 442, so the driving motor 443 can drive the two driven wheels 441 to rotate synchronously with the cross stirring plate 43.

[0030] Furthermore, stirring rods 431 are fixedly installed at the four corners of the cross stirring plate 43, and spiral grooves are opened on the stirring rods 431; when the cross stirring plate 43 rotates, it can stir the activated carbon particles in the filling frame 4 through the cooperation between itself and the stirring rods 431.

[0031] More specifically, two groups of card slots 31 are symmetrically provided on the heat dissipation panel 3, and two groups of card blocks 45 adapted to the card slots 31 are symmetrically installed on the filling frame 4, and the cross-sectional shapes of the card slots 31 and the card blocks 45 are both trapezoidal; when the filling frame 4 is disassembled, the heat dissipation panel 3 can be directly pulled to make the card blocks 45 slide out of the card slots 31, and the filling frame 4 can be removed, and the activated carbon particles filled inside can be replaced.

[0032] More specifically, a mounting edge that matches the heat dissipation panel 3 is fixedly installed in the air inlet 12, and matching connecting magnetic sheets 32 are fixedly installed on the mounting edge and the heat dissipation panel 3; when the heat dissipation panel 3 is installed, it can be clamped in the air inlet 12 and in contact with the mounting edge, and the heat dissipation panel 3 can be fixed under the action of the connecting magnetic sheet 32.

[0033] Furthermore, a base 11 is fixedly installed at the bottom of the inverter body 1, and the base 11 is filled with moisture-proof cotton; the base 11 at the bottom of the inverter body 1 can isolate it from the ground, and the moisture-proof cotton filled inside prevents moisture from entering.

[0034] Furthermore, a heat dissipation port 13 adapted to the air inlet 12 is provided at one end of the inverter body 1 away from the base 11, a heat dissipation fan is provided in the heat dissipation port 13, and a wiring port 14 is provided at one end of the inverter body 1 away from the base 11; after the dried gas enters the inverter body 1, the gas can flow under the action of the heat dissipation fan and be discharged along the heat dissipation port 13, forming an effective heat dissipation path, and the inverter body 1 can be electrically connected to the outside world through the wiring port 14.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic switching high-voltage frequency converter, comprising a frequency converter body (1) and an air inlet (12) provided on the frequency converter body (1), wherein a heat dissipation panel (3) is provided in the air inlet (12), characterized in that: An industrial frequency switching box (2) is fixedly mounted on the inverter body (1); a filling frame (4) is arranged on the heat dissipation panel (3); the filling frame (4) is filled with activated carbon particles; a connecting plate (41) is symmetrically mounted on one end of the filling frame (4) away from the heat dissipation panel (3); a filter screen (42) is fixedly mounted between two adjacent connecting plates (41) and between the connecting plate (41) and the filling frame (4); a cross stirring plate (43) is rotatably mounted on the connecting plate (41); and a driving mechanism (44) is arranged on the connecting plate (41).

2. The automatic switching high voltage inverter according to claim 1, characterized in that: The driving mechanism (44) comprises a driven wheel (441) rotatably mounted on the connecting plate (41), a synchronous belt (442) sleeved on the driven wheel (441), and a driving motor (443) fixedly mounted on the connecting plate (41); the output end of the driving motor (443) is fixedly connected to the driven wheel (441), and the rotating end of the cross stirring plate (43) is fixedly connected to the driven wheel (441).

3. The automatic switching high voltage inverter according to claim 1, characterized in that: Stirring rods (431) are fixedly mounted at the four corners of the cross stirring plate (43).

4. The automatic switching high voltage inverter according to claim 1, characterized in that: The heat dissipation panel (3) is symmetrically provided with two groups of card slots (31), and the filling frame (4) is symmetrically provided with two groups of card blocks (45) adapted to the card slots (31).

5. The automatic switching high voltage inverter according to claim 1, characterized in that: A mounting edge matched with the heat dissipation panel (3) is fixedly mounted in the air inlet (12), and matching connecting magnetic sheets (32) are fixedly mounted on both the mounting edge and the heat dissipation panel (3).

6. The automatic switching high voltage inverter according to claim 3, characterized in that: The stirring rod (431) is provided with a spiral groove.

7. The automatic switching high voltage inverter according to claim 4, characterized in that: The cross-sectional shapes of the clamping groove (31) and the clamping block (45) are both trapezoidal.

8. The automatic switching high voltage inverter according to claim 1, characterized in that: A base (11) is fixedly mounted on the bottom of the inverter body (1), and the base (11) is filled with moisture-proof cotton.

9. The automatic switching high voltage inverter according to claim 8, characterized in that: A heat dissipation port (13) adapted to the air inlet (12) is provided at one end of the inverter body (1) away from the base (11), and a heat dissipation fan is provided in the heat dissipation port (13).

10. The automatic switching high voltage inverter according to claim 8, characterized in that: A wiring port (14) is provided at one end of the frequency converter body (1) away from the base (11).

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