A high-efficiency heat dissipation inverter electric control cabinet

Abstract

The application relates to the technical field of electric control cabinets, and discloses a high-efficiency heat-dissipation frequency converter electric control cabinet which comprises a bottom plate and a heat insulation plate. In the application, the airflow flow rate in the air inlet pipe is accelerated by means of the rotation of a fan one in the low-temperature area, high-efficiency heat dissipation is realized, the fan two in the high-temperature area and the fan one at the top send air upwards, the natural convection characteristics of hot air rising are utilized to accelerate the discharge of hot air, air cooling is used in the low temperature, and the water cooling of the heat-dissipation plate is automatically switched in the high temperature, so that the energy-saving property and the high-efficiency heat-dissipation demand are considered; when the differential pressure sensor on the filter screen detects an abnormality, the threaded rod is driven to rotate, the brush plate moves up and down to automatically clean the filter screen, the fan two reversely rotates to blow away the dust and impurities from the filter screen, the mounting frame is pushed inward, the clamping block in the sleeve is unlocked from the circular table one, the spring sleeved on the sleeve pushes the mounting frame and the mounting plate to automatically slide, after the maintenance is completed, the mounting frame is pushed inward again, the clamping block in the sleeve is automatically locked with the circular table one, and the maintenance operation of the electric control cabinet is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of electric control cabinets, in particular to an electric control cabinet for an inverter with high efficiency heat dissipation. Background Art

[0002] Frequency converter electrical control cabinets are widely used in the metallurgical, chemical, petroleum, water supply, mining, building materials, and motor industries. They are used to control and regulate the speed of various medium-voltage motor equipment such as pumps, fans, air compressors, rolling mills, injection molding machines, and belt conveyors to achieve energy conservation and improve production efficiency. The core of the frequency converter electrical control cabinet is the frequency converter. The rectifier unit converts the three-phase AC power input from the power grid into DC power. The DC link smoothes the DC voltage through capacitors or inductors to provide a stable DC power supply for the inverter unit. The inverter unit uses power devices such as IGBTs to invert DC power into three-phase AC power with adjustable frequency and voltage, and transmits it to the motor. By adjusting the output frequency, the synchronous speed of the motor is changed to achieve stepless speed regulation.

[0003] During actual operation, the electronic components in the inverter control cabinet will continuously generate a large amount of heat when working. Most existing control cabinets dissipate heat by installing cooling fans on the side walls of the cabinet body and only adopting the internal and external circulation heat exchange method. However, the filter set at the air inlet will be blocked by dust and impurities, resulting in increasingly poor heat dissipation effect. In addition, external dust can easily enter the cabinet and adhere to the electronic components, affecting the heat dissipation effect and normal operation of the electronic components. Existing inverter control cabinets basically have the electronic components fixed on the inner wall of the control cabinet. When the electronic components need to be repaired, the small space in the control cabinet will cause inconvenience. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a high-efficiency heat dissipation inverter electric control cabinet, which solves the problems of poor heat dissipation effect, filter clogging and inconvenient maintenance of the existing electric control cabinet.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an efficient heat dissipation inverter electric control cabinet, including a bottom plate and a heat insulation plate:

[0006] The heat dissipation assembly, including two side plates symmetrically installed on the upper surface of the bottom plate, the heat insulation plate is fixedly connected with a square tube near one end of the bottom plate, two air inlet pipes are symmetrically installed at both ends of the square tube, an air inlet is formed in the side plate and is fixedly connected with the air inlet pipe, two lifting grooves are symmetrically formed in the air inlet, a brush plate is slidably connected between the two lifting grooves, a mounting groove two is formed in the heat insulation plate, a fan two is fixedly connected in the mounting groove two, an air outlet is formed in the square tube and is communicated with the mounting groove two, a top plate is fixedly connected at the end of the two side plates away from the bottom plate, a mounting groove one is formed in the top plate, a fan one is fixedly connected in the mounting groove one, the heat insulation plate divides the electric control cabinet into a low-temperature area and a high-temperature area, and the low-temperature area of the electric control cabinet is below and the high-temperature area is above.

[0007] The auxiliary assembly, including a sliding groove formed in the bottom plate, a mounting frame is slidably connected in the sliding groove, a moving groove is formed in the side plate, a mounting plate is slidably connected between the two moving grooves, a back plate is fixedly connected at the end of the bottom plate close to the heat insulation plate, a connecting plate is fixedly connected at the end of the mounting frame close to the back plate, and the mounting frame and the mounting plate are fixedly connected through the connecting plate.

[0008] Preferably, a sleeve is fixedly connected at the end of the mounting frame close to the back plate, two clamping grooves are symmetrically formed in the sleeve, a guide seat is fixedly connected at the end of the back plate close to the sleeve, a guide rod is fixedly connected at the end of the guide seat away from the back plate, a circular table two is slidably connected to the outer wall of the guide rod, and a circular table one is fixedly connected at the end of the guide rod away from the guide seat.

[0009] Preferably, a sliding rod is slidably connected in the clamping groove, and a clamping block is fixedly connected at the end of the sliding rod close to the circular table one.

[0010] Preferably, an expansion groove is formed in the heat insulation plate, and the connecting plate is slidably connected with the expansion groove.

[0011] Preferably, a rotating groove is formed in the heat insulation plate, a shaft rod is rotatably connected in the rotating groove, a coiled spring is fixedly connected at both ends of the shaft rod, a temperature insulation cloth is rotatably connected to the outer wall of the shaft rod, and the temperature insulation cloth is fixedly connected with the connecting plate away from the shaft rod.

[0012] Preferably, a plurality of clamping plates are uniformly installed at the end of the mounting plate away from the back plate, and a heat dissipation plate is fixedly connected in the clamping plate.

[0013] Preferably, a connecting frame is fixedly connected at the end of the mounting frame close to the back plate, and the mounting frame and the connecting plate are fixedly connected through the connecting frame.

[0014] Preferably, a motor is fixedly connected at the end of the air inlet pipe close to the side plate, a threaded rod is fixedly connected to the output end of the motor, and the threaded rod is rotatably connected with the brush plate.

[0015] Preferably, the heat insulation plate is provided with a wire hole, and a temperature sensor is fixedly connected to one end of the heat insulation plate close to the bottom plate.

[0016] Preferably, one end of the side plate away from the air inlet pipe is rotatably connected with a cabinet door.

[0017] In summary, the technical effects and advantages of the present application are:

[0018] 1. In the present application, the heat dissipation assembly is provided to solve the problems of poor heat dissipation effect and filter screen blockage of the existing device. The heat insulation plate divides the electric control cabinet into a low-temperature zone and a high-temperature zone. The airflow in the air inlet pipe is accelerated by the rotation of the fan one, realizing efficient heat dissipation. The independently arranged air inlet pipe not only avoids the influence of heat in the high-temperature zone, but also prevents dust from entering the electric control cabinet. The fan two at the bottom of the high-temperature zone and the fan one at the top are synchronous upward air supply, which accelerates the exhaust of hot air by utilizing the natural convection characteristics of hot air rising. The temperature sensor can dynamically switch the heat dissipation mode. When the temperature is low, the air cooling is started. When the temperature is high, the water cooling of the heat dissipation plate is automatically switched. The energy saving and efficient heat dissipation requirements are considered. When the differential pressure sensor on the filter screen detects an abnormality, the threaded rod is driven to rotate, moving the brush plate up and down to automatically clean the filter screen of the air inlet, and the fan two is reversed to blow the cleaned dust and impurities away from the filter screen. Through the above design, the heat dissipation effect of the electric control cabinet is improved, and the automatic cleaning of the filter screen is realized.

[0019] 2. In the present application, the auxiliary assembly is provided to solve the problem of inconvenient maintenance of the existing device. When the mounting bracket is pushed inward, the clamping block in the sleeve is unlocked with the circular table one, and the spring sleeved on the sleeve pushes the mounting bracket and the mounting plate to automatically slide out of the electric control cabinet, avoiding the inconvenience of maintenance in the small space of the electric control cabinet. After the maintenance is completed, the mounting bracket is pushed inward again, and the clamping block in the sleeve is automatically locked with the circular table one, making the maintenance operation of the electric control cabinet more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the present application;

[0021] Figure 2 It is a side plate cross-section structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the present application;

[0022] Figure 3 It is an enlarged structure schematic diagram of A in the high-efficiency heat dissipation frequency converter electric control cabinet of the present application; Figure 2

[0023] Figure 4 It is a connecting frame structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the present application;

[0024] Figure 5 ​It is a telescopic slot cross-section structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the application;

[0025] Figure 6 It is a sliding slot cross-section structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the application;

[0026] Figure 7 It is a sleeve cross-section structure schematic diagram of the high-efficiency heat dissipation frequency converter electric control cabinet of the application.

[0027] In the figure: 1, cabinet door; 2, side plate; 3, air inlet; 4, mounting groove one; 5, mounting plate; 6, heat insulation plate; 7, moving groove; 8, sliding slot; 9, fan one; 10, heat dissipation plate; 11, connecting plate; 12, rotating groove; 13, wire hole; 14, mounting groove two; 15, air inlet pipe; 16, mounting frame; 17, lifting groove; 18, brush plate; 19, threaded rod; 20, fan two; 21, connecting frame; 22, top plate; 23, bottom plate; 24, square tube; 25, telescopic slot; 26, temperature insulation cloth; 27, shaft rod; 28, coil spring; 29, clamping plate; 30, sleeve; 31, guide seat; 32, sliding rod; 33, clamping block; 34, guide rod; 35, round table one; 36, round table two; 37, clamping groove; 38, back plate; 39, motor. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0029] REFERENCE Figures 1-7, an efficient heat dissipation inverter electric control cabinet shown in the figure includes a bottom plate 23 and a heat insulation plate 6, a heat dissipation component, including two side plates 2 symmetrically installed on the upper surface of the bottom plate 23, and the end of the heat insulation plate 6 close to the bottom plate 23 is fixedly connected to a square tube 24, and two air inlet pipes 15 are symmetrically installed at both ends of the square tube 24, an air inlet 3 is provided on the side plate 2, and the air inlet 3 is fixedly connected to the air inlet pipe 15, and two lifting slots 17 are symmetrically provided in the air inlet 3, and a brush plate 18 is slidably connected between the two lifting slots 17, a mounting slot 2 14 is provided on the heat insulation plate 6, a fan 20 is fixedly connected in the mounting slot 2 14, an air outlet is provided on the square tube 24, and the air outlet is connected to the mounting slot 2 14, and the ends of the two side plates 2 away from the bottom plate 23 are commonly fixedly connected to a top plate 22, a mounting slot 1 4 is provided on the top plate 22, and a fan 1 9 is fixedly connected in the mounting slot 1 4, the heat insulation plate 6 divides the electric control cabinet into a low temperature zone and a high temperature zone, and the electric control The low temperature zone of the cabinet is at the bottom and the high temperature zone is at the top; a telescopic slot 25 is provided on the insulation board 6, and the connecting plate 11 is slidably connected to the telescopic slot 25, and a rotating slot 12 is provided on the insulation board 6, and a shaft 27 is rotatably connected in the rotating slot 12, and the two ends of the shaft 27 are fixedly connected to a coil spring 28, and the outer wall of the shaft 27 is rotatably connected to the insulation cloth 26, and the insulation cloth 26 is fixedly connected to the connecting plate 11 at one end away from the shaft 27. A plurality of card plates 29 are evenly installed on the end of the mounting plate 5 away from the back plate 38, and a heat sink 10 is fixedly connected in the card plate 29, and an end of the air inlet pipe 15 near the side plate 2 is fixedly connected to the motor 39, and the output end of the motor 39 is fixedly connected to the threaded rod 19, and the threaded rod 19 is rotatably connected to the brush plate 18, and a wire hole 13 is provided on the insulation board 6, and a temperature sensor is fixedly connected to one end of the insulation board 6 near the bottom plate 23, and one end of one side plate 2 away from the air inlet pipe 15 is rotatably connected to the cabinet door 1.

[0030] In order to improve the heat dissipation effect of the inverter electric control cabinet and automatically clean the filter, the present invention is provided with a heat dissipation component, which divides the electric control cabinet into a low-temperature zone and a high-temperature zone by an insulation board 6. The low-temperature zone below accelerates the air flow rate in the air inlet pipe 15 with the help of fan 19, thereby achieving efficient heat dissipation. The independently arranged air inlet pipe 15 not only avoids the influence of heat from the high-temperature zone, but also prevents dust from entering the interior of the electric control cabinet; fan 20 at the bottom of the high-temperature zone and fan 9 at the top synchronously blow air upward, utilizing the natural convection characteristics of rising hot air to accelerate the discharge of hot air. The temperature sensor can dynamically switch the heat dissipation mode, enabling air cooling at low temperatures and automatically switching to water cooling with the heat sink 10 at high temperatures, taking into account both energy saving and strong heat dissipation requirements; when the pressure difference sensor on the filter detects an abnormality, it will drive the threaded rod 19 to rotate, causing the brush plate 18 to move up and down to automatically clean the filter. At the same time, fan 20 reverses to blow the cleaned dust and impurities away from the filter. Through the above design, not only the heat dissipation effect of the electric control cabinet is improved, but also automatic cleaning of the filter is achieved.

[0031] Specifically, first, because the heat insulation plate 6 separates the electric control cabinet into low temperature area and high temperature area, the low temperature area of the electric control cabinet is below, the high temperature area is above, the low temperature area is installed with integrated circuits, resistors, capacitors, inductors, connectors, communication chips, fuses, etc., the high temperature area above is provided with power MOSFET, insulated gate bipolar transistor, high-power resistor, transformer, etc., when the temperature in the electric control cabinet is low, the fan two 20 and the fan one 9 are in low speed state, the fan two 20 rotates, the air inlet pipe 15 passes through the air inlet 3, the air inlet pipe 15 is made of copper pipe, the air flow velocity of the air inlet pipe 15 increases, which can absorb the temperature in the low temperature area, automatically cool the low temperature area, the independently arranged air inlet pipe 15 not only avoids the influence of the heat of the high temperature area, but also prevents dust from entering the inside of the electric control cabinet, the fan two 20 at the bottom of the high temperature area and the fan one 9 at the top are synchronous to send air upward, which utilizes the natural convection characteristics of hot air rising to accelerate the discharge of hot air from the installation groove one 4, it is worth noting that the above-mentioned fan two 20 and fan one 9 are all direct current brushless fans, which automatically adjust the speed according to the temperature sensors arranged in the low temperature area and the high temperature area, the air inlet 3, the square tube 24 and the installation groove one 4 are all installed with filter screens, the frequency converter electric control cabinet side plate 2, the bottom plate 23, the back plate 38 and the top plate 22 are connected and fixed by welding, and the welding part is coated with a sealant, which improves the rigidity of the whole electric control cabinet and makes it more stable and good in sealing, which can reduce the invasion of dust and water vapor from the connecting gap, and protect the internal circuit.

[0032] Secondly, when the temperature in the electric control cabinet is very high, the temperature sensor automatically increases the speed of fan 20 and fan 1 9 to speed up the discharge of hot air in the high-temperature area. At the same time, the components installed in the above-mentioned high-temperature area are in contact with the heat sink 10 in the card board 29. The low-viscosity coolant in the microchannel of the heat sink 10 is driven by the water pump to circulate away the heat. Through the combined effect of air cooling and water cooling, the heat in the high-temperature area is efficiently discharged. It is worth noting that fan 20 and fan 1 9 are on the same vertical line. By pushing fan 20 up and fan 1 9 up, the cooling effect is more significant. At the same time, the insulation cloth 26 is in contact with the upper surface of the insulation board 6, and the width of the insulation cloth 26 is greater than the width of the telescopic slot 25, which reduces the heat transfer from the high-temperature area to the low-temperature area. It is worth noting that the heat transferred to the low-temperature area through the holes and wire holes 13 on the insulation board 6 will be quickly discharged under the heat absorption of the air inlet pipe 15, and will not be affected by the temperature of the low-temperature area. The internal components are affected, and the above-mentioned insulation cloth 26 is made of Teflon as the main raw material. When the pressure difference sensor installed on the filter screen at the air inlet 3 detects that the air intake of the filter screen is reduced, the motor 39 rotates to drive the threaded rod 19 to rotate, so that the brush plate 18 moves up and down to clean the dust and impurities on the filter screen. At the same time, the fan 20 rotates in the opposite direction, so that the hot air in the high temperature zone is discharged from the air inlet 3 along the air inlet pipe 15. The hot air can dry the moist dust and impurities on the filter screen, reduce the adhesion of dust and impurities, and the brush plate 18 cleans the dust faster. When the pressure difference sensor monitoring returns to normal, a storage groove is jointly opened on the side panel 2 and the air inlet pipe 15, and the position of the storage groove is higher than the air inlet 3. The motor 39 drives the brush plate 18 to move up to the highest point of the air inlet 3 to avoid blocking the air intake. At the same time, the fan 20 resumes forward rotation. It is worth noting that the above-mentioned temperature sensor and pressure difference sensor are existing components and are not repeated here.

[0033] refer to Figures 1-7The auxiliary assembly comprises a sliding groove 8 formed in the bottom plate 23, a mounting frame 16 slidably connected in the sliding groove 8, a moving groove 7 formed in the side plate 2, a mounting plate 5 slidably connected between the two moving grooves 7, a back plate 38 fixedly connected to one end of the bottom plate 23 close to the heat insulation plate 6, a connecting plate 11 fixedly connected to one end of the mounting frame 16 close to the back plate 38, the mounting frame 16 and the mounting plate 5 being fixedly connected through the connecting plate 11, the back plate 38 fixedly connected to one end of the bottom plate 23 close to the heat insulation plate 6, a sleeve 30 fixedly connected to one end of the mounting frame 16 close to the back plate 38, two clamping grooves 37 symmetrically formed in the sleeve 30, a guide seat 31 fixedly connected to one end of the back plate 38 close to the sleeve 30, a guide rod 34 fixedly connected to one end of the guide seat 31 away from the back plate 38, a circular table two 36 slidably connected to the outer wall of the guide rod 34, a circular table one 35 fixedly connected to one end of the guide rod 34 away from the guide seat 31, a sliding rod 32 slidably connected in the clamping groove 37, a clamping block 33 fixedly connected to one end of the sliding rod 32 close to the circular table one 35, and a connecting frame 21 fixedly connected between the mounting frame 16 and the connecting plate 11 close to the back plate 38.

[0034] In order to improve the maintenance convenience of the frequency converter electric control cabinet, the auxiliary assembly is arranged, when the mounting frame 16 is pushed inward, the clamping block 33 in the sleeve 30 is unlocked from the circular table one 35, the spring sleeved on the sleeve 30 drives the mounting frame 16 and the mounting plate 5 to automatically slide, thereby avoiding the inconvenience in maintenance in the narrow space of the electric control cabinet; after the maintenance is completed, the mounting frame 16 is pushed inward again, the clamping block 33 in the sleeve 30 is automatically locked with the circular table one 35, so that the maintenance operation of the electric control cabinet is more convenient.

[0035] Specifically, first, when the maintenance is needed, the mounting frame 16 is pushed inward, the clamping block 33 on the sleeve 30 is extruded by the circular table two 36, and moves along the clamping groove 37 away from the end of the circular table two 36, when the clamping block 33 moves to contact with the arc-shaped end of the circular table two 36, with the continuous movement of the mounting frame 16, the clamping block 33 reversely extends out of the clamping groove 37, and pulls out the mounting frame 16 outward, at this time, the circular table two 36 moves along the guide rod 34 and is attached to the circular table one 35, it is worth noting that the maximum diameter of the circular table one 35 and the circular table two 36 is smaller than the diameter of the hole in the sleeve 30, and the distance between the guide base 31 and the back plate 38 is greater than the length of the guide rod 34, at this time, the clamping block 33 is retracted into the clamping groove 37, when the clamping block 33 passes through the attachment position of the circular table one 35 and the circular table two 36, the mounting frame 16 continues to pull out, and the unlocking of the sleeve 30 is completed, at this time, the mounting frame 16 is moved outward along the sliding groove 8 under the elastic force of the spring, and the connecting frame 21 pulls the mounting plate 5 to move outward synchronously, it is worth noting that when the mounting frame 16 moves to the outermost end of the sliding groove 8, there is still a distance between the connecting frame 21 and the air inlet pipe 15, and the connecting frame 21 moves along the gap between the air inlet pipe 15 and the heat insulation plate 6, and does not contact with the above two during the movement, with the movement of the mounting plate 5, the shaft rod 27 drives the heat insulation cloth 26 to be retracted under the elastic force of the coil spring 28, after the heat insulation cloth 26 is retracted, the shaft rod 27 does not contact with the inner wall of the rotating groove 12, and the rotating groove 12 is not communicated with the telescopic groove 25, so that the hot air in the high temperature area does not flow into the low temperature area, when the mounting frame 16 stops moving in the sliding groove 8, the mounting plate 5 also stops moving.

[0036] Secondly, when the maintenance is completed, the mounting frame 16 is pushed inward, the clamping block 33 in the sleeve 30 is extruded by the circular table one 35 and is retracted inward along the clamping groove 37, the mounting frame 16 is continuously pushed, when the clamping block 33 passes through the maximum diameter end of the circular table one 35, the clamping block 33 extends along the clamping groove 37 under the elastic force of the spring wrapped on the slide rod 32, the mounting frame 16 is stopped, at this time, the spring in the sleeve 30 pushes the clamping block 33 to closely attach to the end of the circular table one 35 close to the circular table two 36, and the mounting plate 5 moves synchronously under the pushing of the connecting frame 21, the heat insulation cloth 26 is pulled out from the shaft rod 27, the shaft rod 27 reversely rotates, and the coil springs 28 at both ends of the shaft rod 27 are in a gradually compressed state, when the mounting frame 16 is fixed, the mounting plate 5 also stops moving, it is worth noting that the distance between the connecting plate 11 and the telescopic groove 25 and the distance between the mounting frame 16 and the sliding groove 8 after the mounting frame 16 is locked are greater than the length of the guide rod 34, which does not affect the unlocking of the sleeve 30.

[0037] Working principle of the present invention: Since the heat insulation board 6 divides the electric control cabinet into a low temperature zone and a high temperature zone, when the temperature inside the electric control cabinet is low, the fan 20 and the fan 1 9 are both in a low speed state, and the fan 20 rotates to make the air inlet pipe 15 pass through the air inlet 3. The air inlet pipe 15 is made of copper pipe. The air flow rate of the air inlet pipe 15 increases, which will absorb the temperature in the low temperature zone and automatically cool the low temperature zone. The independently set air inlet pipe 15 not only avoids the influence of heat in the high temperature zone, but also prevents dust from entering the interior of the electric control cabinet. The fan 20 at the bottom of the high temperature zone and the fan 1 9 at the top synchronously supply air upwards, and use the natural convection characteristics of rising hot air to accelerate the discharge of hot air from the installation slot 4. When the temperature inside the electric control cabinet is very high, the temperature sensor automatically increases the fan 20 and the fan 1 9. The speed accelerates the discharge of hot air in the high-temperature area. At the same time, the components installed in the above-mentioned high-temperature area are fitted with the heat sink 10 in the card plate 29. The low-viscosity coolant circulates in the microchannel of the heat sink 10 to take away the heat. Through the combined effect of air cooling and water cooling, the heat in the high-temperature area is efficiently discharged. When the pressure difference sensor installed on the filter at the air inlet 3 detects that the air intake of the filter is reduced, the motor 39 rotates to drive the threaded rod 19 to rotate, so that the brush plate 18 moves up and down to clean the dust and impurities on the filter. At the same time, the fan 20 rotates in the opposite direction, so that the hot air in the high-temperature area is discharged from the air inlet 3 along the air inlet pipe 15. The hot air can dry the moist dust and impurities on the filter, reduce the adhesion of dust and impurities, and the brush plate 18 cleans the dust more quickly. After the pressure difference sensor monitoring returns to normal, the motor 39 drives the brush plate 18 to move up to the highest point of the air inlet 3 to avoid blocking the air intake. At the same time, the fan 20 resumes forward rotation. When maintenance is required, the mounting bracket 16 is pushed inward, and the block 33 on the sleeve 30 is squeezed by the truncated cone 2 36 and moves along the clamping groove 37 to the end away from the truncated cone 2 36. When the block 33 moves to contact the arc-shaped end of the truncated cone 2 36, as the mounting bracket 16 continues to move, the block 33 extends out from the clamping groove 37 in the opposite direction and pulls the mounting bracket 16 outward. At this time, the truncated cone 2 36 moves along the guide rod 34 to fit with the truncated cone 1 35. At this time, the block 33 shrinks into the clamping groove 37. When the block 33 passes over the fitting place between the truncated cone 1 35 and the truncated cone 2 36, the mounting bracket 16 continues to move. When the mounting plate 5 moves outward, the spring 28 of the spring 28 drives the shaft 27 to rewind the heat-insulating cloth 26. After the heat-insulating cloth 26 is rewound, the shaft 27 does not contact the inner wall of the rotating groove 12, and the rotating groove 12 is not connected with the telescopic groove 25, which will not cause the hot air in the high-temperature area to flow from here to the low-temperature area. When the mounting frame 16 stops moving in the slide groove 8, the mounting plate 5 also stops moving. When the maintenance is completed, the mounting frame 16 is pushed inward, and the block 33 in the sleeve 30 is squeezed by the round table 35 and shrinks inward along the card slot 37, continuing to push the mounting frame 16.When the block 33 passes the maximum diameter end of the first cone 35, the block 33 extends along the engaging groove 37 under the rebound force of the spring mounted on the slide bar 32, and stops pushing the mounting bracket 16. At this time, the spring on the sleeve 30 rebounds and pushes the block 33 to tightly fit the end of the first cone 35 near the second cone 36. At the same time, the mounting plate 5 moves synchronously under the push of the connecting frame 21, and the insulation cloth 26 is pulled out from the shaft 27. The shaft 27 rotates in the opposite direction, and the coil springs 28 at both ends of the shaft 27 are gradually compressed. When the mounting bracket 16 is fixed, the mounting plate 5 also stops moving.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An efficient heat dissipation inverter electric control cabinet, comprising a base plate (23) and a heat insulation plate (6), characterized in that: A heat dissipation assembly comprises two side panels (2) symmetrically mounted on the upper surface of a bottom plate (23); one end of the heat insulation plate (6) close to the bottom plate (23) is fixedly connected to a square tube (24); two air inlet pipes (15) are symmetrically mounted at both ends of the square tube (24); an air inlet (3) is provided on the side panel (2), and the air inlet (3) is fixedly connected to the air inlet pipe (15); two lifting grooves (17) are symmetrically provided in the air inlet (3); a brush plate (18) is slidably connected between the two lifting grooves (17); and a heat insulation plate (6) is provided on the side panel (2). A second mounting groove (14) is provided, a second fan (20) is fixedly connected to the second mounting groove (14), an air outlet is provided on the square tube (24), and the air outlet is communicated with the second mounting groove (14), one end of the two side plates (2) away from the bottom plate (23) is fixedly connected to the top plate (22), a first mounting groove (4) is provided on the top plate (22), a first fan (9) is fixedly connected to the first mounting groove (4), and the heat insulation plate (6) divides the electric control cabinet into a low-temperature zone and a high-temperature zone, and the low-temperature zone of the electric control cabinet is at the bottom and the high-temperature zone is at the top; The auxiliary component includes a slide groove (8) provided on the bottom plate (23), a mounting frame (16) being slidably connected in the slide groove (8), a movable groove (7) provided on the side plate (2), a mounting plate (5) being slidably connected between the two movable grooves (7), a back plate (38) being fixedly connected to one end of the bottom plate (23) close to the heat insulation plate (6), a connecting plate (11) being fixedly connected to one end of the mounting frame (16) close to the back plate (38), and the mounting frame (16) and the mounting plate (5) being fixedly connected via the connecting plate (11).

2. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: The end of the mounting frame (16) close to the back plate (38) is fixedly connected to the sleeve (30), and two clamping grooves (37) are symmetrically provided on the sleeve (30). The end of the back plate (38) close to the sleeve (30) is fixedly connected to the guide seat (31), and the end of the guide seat (31) away from the back plate (38) is fixedly connected to the guide rod (34). The outer wall of the guide rod (34) is slidably connected to the second round table (36), and the end of the guide rod (34) away from the guide seat (31) is fixedly connected to the first round table (35).

3. The high-efficiency heat dissipation inverter electric control cabinet according to claim 2, characterized in that: A slide rod (32) is slidably connected in the clamping groove (37), and a clamping block (33) is fixedly connected to one end of the slide rod (32) close to the round table (35).

4. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: A telescopic slot (25) is provided on the heat insulation plate (6), and the connecting plate (11) is slidably connected to the telescopic slot (25).

5. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: The heat insulation plate (6) is provided with a rotation groove (12), a shaft (27) is rotatably connected in the rotation groove (12), both ends of the shaft (27) are fixedly connected with coil springs (28), an outer wall of the shaft (27) is rotatably connected with a heat insulation cloth (26), and one end of the heat insulation cloth (26) away from the shaft (27) is fixedly connected to the connecting plate (11).

6. The high-efficiency heat dissipation inverter electric control cabinet according to claim 2, characterized in that: A plurality of card plates (29) are evenly mounted on one end of the mounting plate (5) away from the back plate (38), and a heat dissipation plate (10) is fixedly connected inside the card plates (29).

7. The high-efficiency heat dissipation inverter electric control cabinet according to claim 2, characterized in that: One end of the mounting frame (16) close to the back plate (38) is fixedly connected to a connecting frame (21), and the mounting frame (16) and the connecting plate (11) are fixedly connected via the connecting frame (21).

8. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: One end of the air inlet pipe (15) close to the side plate (2) is fixedly connected to a motor (39), an output end of the motor (39) is fixedly connected to a threaded rod (19), and the threaded rod (19) is rotatably connected to the brush plate (18).

9. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: A wire hole (13) is provided on the heat insulation board (6), and a temperature sensor is fixedly connected to one end of the heat insulation board (6) close to the bottom plate (23).

10. The high-efficiency heat dissipation inverter electric control cabinet according to claim 1, characterized in that: One end of one of the side panels (2) away from the air inlet pipe (15) is rotatably connected to the cabinet door (1).

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