CN107147017A - A switch cabinet with self-cleaning function - Google Patents

Abstract

The invention discloses a switch cabinet with a self-cleaning function, which comprises a cabinet body, a cabinet door, a cleaning groove and a solar panel, wherein the front end of the cabinet body is provided with the cabinet door opened through a handle; the front end of the cabinet body is also provided with a main control board, a temperature sensor and a PLC main controller are arranged in the main control board, the temperature sensor is electrically connected with the PLC main controller, and the PLC main controller supplies power through a storage battery; the transverse empty groove is internally provided with a storage battery which is electrically connected with the solar panel through a photovoltaic controller; a power supply main board, a dust collector and an electric ventilation butterfly valve are assembled in the vertical empty groove, the dust collector and the electric ventilation butterfly valve are fixed in the middle of the cleaning groove through a fixing plate, and a water level sensor is installed at one end of the electric valve; can prevent dust, have intelligent control to the heat dissipation of inside moreover, will dispel the heat and clean the combination for temperature in the cubical switchboard is suitable, and the power supply is convenient moreover.

Description

A switch cabinet with self-cleaning function

technical field

The invention relates to the technical field of switch cabinets, in particular to a switch cabinet with a self-cleaning function.

Background technique

The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc., some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. load shedding.

Traditional switch cabinets are very cumbersome to clean. With the development of society, great attention has been paid to the cleaning of switch cabinets. At present, some progress has been made, such as the patent "Sealed Switch Cabinet Box" with application number: 201110164408.9, including mutual The spliced front sealing plate, side sealing plate and rear sealing plate; the seams between the sealing plates are filled with sealant. The front sealing plate is provided with a rotating shaft hole, and the outer periphery of the rotating shaft hole is provided with a sealing ring. The switchgear box of the present invention is a frame structure made of steel plates, combined with the application of special long-lasting sealant for sheet metal box plates to seal the joints to form the static seal of the box and the splicing operation of the sealing ring to rotate the shaft hole to form the dynamic seal of the box , thus constituting the sealed box of the switchgear, ensuring that the air does not enter the inside of the box from the joints of the box and the operation rotation shaft hole. In addition, in order to allow the electrical components inside the box to ventilate and dissipate heat, a natural ventilation channel slot is set in the box, and an air cleaning device is installed at the entrance of the ventilation hole to ensure that clean and clean air enters the cabinet and plays a role. Reduce the temperature inside the cabinet; at the same time, keep the cabinet clean and reduce the reduction of insulation strength in the cabinet during long-term operation.

However, there are great defects in heat dissipation in this result, and the air cleaning device does not have the function of self-cleaning, so that the switchgear cannot be self-cleaned well; in addition, the application number is 201410179546.8 patent "intelligent power-saving Switchgear", the intelligent means used in the switchgear has been difficult to carry out the intelligent control of the current switchgear, and there are great deficiencies in power saving and heat dissipation.

Contents of the invention

In view of the above problems, the present invention provides a switchgear with self-cleaning function, which can be dust-proof, and has intelligent control for internal heat dissipation, combining heat dissipation and cleaning, so that the temperature in the switchgear is suitable and the power supply is convenient ; Can effectively solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a switchgear with self-cleaning function, including a cabinet body, the front end of the cabinet body is provided with a cabinet door opened by a handle, and also includes a cleaning tank and a Solar panel fixed on the upper end of the cabinet;

The front end of the cabinet is also equipped with a main control board, a temperature sensor and a PLC main controller are installed in the middle of the main control board, the temperature sensor is electrically connected with the PLC main controller, and the PLC main controller is powered by a storage battery;

The interior of the cabinet is provided with two vertical chutes, and three placement plates are installed between the chutes at both ends. A heat dissipation mechanism, the heat dissipation mechanism is composed of a rotating leaf, a rotating frame and a fixed frame, the rotating leaf is installed in the middle of the rotating frame, and cleaning cotton is filled between the fixed frame and the rotating frame; It is electrically connected with the motor installed in the drive box at the bottom of the placement board. The cleaning slot is composed of a horizontal empty slot set on the upper part of the cabinet and a vertical empty slot set at one end of the chute. The horizontal empty slot An electric storage tank is installed in the tank, and the electric storage tank is electrically connected to the solar panel through the photovoltaic controller;

The vertical empty slot is equipped with a power supply main board, a vacuum cleaner and an electric ventilation butterfly valve. The vacuum cleaner and the electric ventilation butterfly valve are fixed in the middle of the cleaning slot by a fixing plate, and the fixing plate divides the vertical empty slot into upper and lower parts. Two parts, the lower part of the vertical trough is hollow, the end of the lower part of the vertical trough close to the inner wall of the cabinet communicates with the outside world through an electric valve, and a water level sensor is installed at one end of the electric valve;

A voltage stabilizer, a memory chip, a single-chip microcomputer, a No. 1 relay, a No. 2 relay and a No. 3 relay are installed on the main board of the power supply; The No. 1 relay, No. 2 relay and No. 3 relay are electrically connected to the vacuum cleaner, the electric ventilation butterfly valve and the electric valve; the electric ventilation butterfly valve communicates with the outside through the filter installed on the side of the cabinet;

The placement plate in the cabinet is provided with a hole near one end of the vertical slot, and one end of the vacuum cleaner communicates with the rotating blade through the hole through a connecting pipe.

As a preferred technical solution of the present invention, the solar panel is fixed to the upper end of the cabinet through a support tube, the upper end of the cabinet is welded to the bottom of the support tube through a fixing frame, the support tube is hollow, and the wires pass through the support The tube is electrically connected with the photovoltaic controller inside the cabinet.

As a preferred technical solution of the present invention, the outside of the main control board at the front end of the cabinet is surrounded by a waterproof frame, and a dust outlet is provided on the side of the cabinet, and the dust outlet corresponds to the position of the output port of the vacuum cleaner.

As a preferred technical solution of the present invention, a spacer is installed at the bottom of the cabinet, and a plurality of communication openings are opened in the middle of the placement plate; the bottom of the cabinet is designed as a main slope, and the vertical trough The bottom of the main slope is designed as an auxiliary slope, and the main slope is connected with the auxiliary slope.

As a preferred technical solution of the present invention, a transparent plate is installed on the side of the cabinet close to the vertical trough, and the transparent plate is fixed to the cabinet by fastening screws.

As a preferred technical solution of the present invention, shielding nets are filled around the chute in the cabinet, and built-in copper wires are filled in the placement plate.

As a preferred technical solution of the present invention, the drive box is provided with a power terminal, and the electric storage tank is electrically connected to the power terminal through a wire through a shielding net. The power terminal supplies power to the motor, and the motor input terminal It is electrically connected with the PLC main controller, and the motor is electrically connected with the rotating blade through the governor.

As a preferred technical solution of the present invention, the connecting pipe is designed with three sub-pipes, and the three sub-pipes are connected to the holes on the three placement plates respectively, and fastening buckles are installed at the ends of the sub-pipes.

As a preferred technical solution of the present invention, the outer boundary of the cleaning tank is provided with a wiring trough, and the single-chip microcomputer is electrically connected to the electric valve and the water level sensor through the wiring trough connected by the No. 3 relay.

As a preferred technical solution of the present invention, a memory chip is installed on the main board of the power supply, the PLC main controller is electrically connected to the single-chip electromechanical device through the memory chip through a wire, the cleaning tank is communicated with the outside air through a filter screen, and the The filter screen communicates with the electric ventilation butterfly valve through the gas detector, the gas detector is electrically connected with the single-chip microcomputer, and the electric ventilation butterfly valve is conducted through the air guide pipe and the communication pipe.

The cabinet door can be opened by the handle, the sliders at both ends of the placement board can be slid on the chute to fix, and then the necessary electrical components are installed on the placement board to power on, and the temperature sensor is used to detect the heating temperature of the main control board. Its temperature value is transmitted to the PLC main controller, which can process the temperature value, so that information can be transmitted with the power supply main board; during use, the motor is powered through the solar panel, one end of the motor is grounded, and the other end is connected to the PLC main board through the power terminal. It is electrically connected to the controller, and it can judge whether the detection value of the temperature sensor exceeds the threshold, so as to control whether the motor drives the rotating blade to rotate, the rotating blade drives the rotating frame to rotate, and the rotating frame drives the cleaning cotton to clean; The main board supplies power, and the single-chip microcomputer supplies power through the voltage stabilizer. At this time, the single-chip microcomputer can receive the processing signal of the temperature sensor from the PLC controller. The single-chip microcomputer drives the vacuum cleaner, electric ventilation butterfly valve and The electric valve, the vacuum cleaner can vacuum the cabinet through the connecting pipe, and the electric ventilation butterfly valve can supply air to the cabinet and update the gas of the cabinet, and after the electric valve is opened, the sewage in the cleaning tank can be discharged.

Compared with prior art, the beneficial effect of the present invention is:

It can be dust-proof, and has intelligent control for internal heat dissipation. Combining heat dissipation and cleaning, the temperature in the switch cabinet is suitable, and the power supply is convenient. It uses solar energy for power supply, which solves the problem of electricity consumption; it adopts PLC control Two different control chips, the switchgear and the single-chip microcomputer, work in parallel, have high work efficiency, and can discharge sewage in time, which prolongs the service life of the switchgear.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram inside the cabinet in the present invention;

Figure 3 is an enlarged view of the connection between the placement plate and the chute in the present invention;

Fig. 4 is a top view of the placement board of the present invention;

Fig. 5 is the enlarged schematic diagram of connecting pipe in the present invention;

Fig. 6 is a schematic diagram of the circuit connection of the main board of the power supply in the present invention;

Fig. 7 is the internal circuit diagram of the main control board in the present invention;

Fig. 8 is a schematic diagram inside the drive box in the present invention;

Fig. 9 is a cross-sectional view of placing a plate in the present invention;

Fig. 10 is a schematic diagram of the working principle of the PLC main controller in the present invention;

Fig. 11 is a circuit diagram of a single-chip microcomputer in the present invention;

Fig. 12 is a circuit diagram of the middle board of the main control board in the present invention.

In the figure: 1-cabinet body; 101-cabinet door; 102-handle; 103-pad; 2-cleaning tank; 3-solar panel; 301-support tube; Waterproof frame; 402-battery; 403-PLC main controller; 404-temperature sensor; 5-fixing buckle; 6-transparent plate; 601-fastening screw; ;8-horizontal empty slot; 801-photovoltaic controller; 802-storage tank; 9-shielding net; 10-placement plate; 1001-hole; 11-main slope; 15-rotating leaf; 16-rotating frame; 17-fixed frame; 18-power terminal; 19-drive box; 1901-motor; 1902-governor; 20-power supply main board; Memory chip; 2003-MCU; 2004-No.1 relay; 2005-No.2 relay; 2006-No.3 relay; 21-gas detector; 22-filter; 23-vacuum cleaner; 24-electric ventilation butterfly valve; 25-vice slope ; 26-water level sensor; 27-electric valve; 28-built-in copper wire.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

Referring to Fig. 1 to Fig. 11, the present invention provides a technical solution:

A switchgear with self-cleaning function, including a cabinet body 1, the front end of the cabinet body 1 is provided with a cabinet door 101 opened by a handle 102, and it is characterized in that it also includes a cleaning tank 2 arranged in the cabinet body and a cleaning tank fixed on the cabinet body 1 The solar panel 3 at the upper end;

The front end of the cabinet body 1 is also equipped with a main control board 4, and a temperature sensor 404 and a PLC main controller 403 are installed in the main control board 4. The temperature sensor 404 is electrically connected with the PLC main controller 403, and the PLC main controller 403 is 402 power supply;

Inside the cabinet body 1 are provided with two vertical chute 12, three placement boards 10 are installed between the chute 12 at both ends, the two ends of the placement board 10 are slidingly connected with the chute 10 through the slider 13; the bottom of the placement board 10 is installed There are two heat dissipation mechanisms, the heat dissipation mechanism is composed of the rotating blade 15, the rotating frame 16 and the fixed frame 17, the rotating blade 15 is installed in the middle of the rotating frame 16, and cleaning cotton is filled between the fixed frame 17 and the rotating frame 16; the two heat dissipation mechanisms Both are electrically connected to the motor 1901 installed in the drive box 19 at the bottom of the placement board 10 through wires. The cleaning tank is composed of a horizontal empty slot arranged on the upper part of the cabinet and a vertical empty slot arranged at one end of the chute. An electric storage tank 802 is installed in the horizontal empty slot 8, and the electric storage tank 802 is electrically connected to the solar panel 3 through the photovoltaic controller 801;

The vertical empty slot is equipped with a power supply main board 20, a vacuum cleaner 23 and an electric ventilation butterfly valve 24. The vacuum cleaner 23 and the electric ventilation butterfly valve 24 are fixed in the middle of the cleaning tank 2 by a fixing plate. The fixing plate divides the vertical empty slot into upper and lower parts. Two parts, the lower part of the vertical trough is hollow, the end of the lower part of the vertical trough close to the inner wall of the cabinet communicates with the outside through an electric valve 27, and a water level sensor 26 is installed at one end of the electric valve 27;

A voltage stabilizer 2001, a storage chip 2002, a single-chip microcomputer 2003, a No. 1 relay 2004, a No. 2 relay 2005 and a No. 3 relay 2006 are installed on the power supply main board 20, and the storage tank 802 is connected to the single-chip microcomputer 2003 by wires through the voltage stabilizer 2001, The single-chip microcomputer 2003 is electrically connected to the vacuum cleaner 23, the electric ventilation butterfly valve 24 and the electric valve 27 through No. 1 relay 2004, No. 2 relay 2005 and No. 3 relay 2006 respectively; ;

The placement plate 10 in the cabinet body 1 is provided with a hole 1001 near one end of the vertical trough, and one end of the vacuum cleaner 23 communicates with the rotating blade 15 through the hole 1001 through the connecting pipe 7 .

Preferably, the solar panel 3 is fixed to the upper end of the cabinet body 1 through the support tube 301, and the upper end of the cabinet body 1 is welded to the bottom of the support tube 301 through the fixing frame 302. The photovoltaic controller 801 is electrically connected; it can well fix the solar panel, and it can also facilitate the flow of current and store electricity.

Preferably, the outer side of the main control board 4 at the front end of the cabinet 1 is surrounded by a waterproof frame 401, and the side of the cabinet is provided with a dust outlet, which corresponds to the position of the output port of the vacuum cleaner; discharge.

Preferably, a spacer 103 is installed at the bottom of the cabinet body 1, and a plurality of communication ports 14 are provided in the middle part of the placement plate 10; the bottom in the cabinet body 1 is designed for the main slope 11, and the bottom in the vertical cavity is designed for the auxiliary slope 25, The main slope 11 is connected with the auxiliary slope 25; when sewage is generated in the cabinet due to long working hours, the sewage will flow into the main slope through the connecting port, and the lowest end of the main slope passes through the top of the auxiliary slope and then flows to the lowest end of the auxiliary slope.

Preferably, a transparent board 6 is installed on the side of the cabinet close to the vertical slot, and the transparent board 6 is fixed to the cabinet by fastening screws 601 .

Preferably, the chute 12 in the cabinet 1 is filled with a shielding net 9 around, and the placement plate 10 is filled with a built-in copper wire 28; The electrical appliances in the cabinet play a good role in preventing current leakage and saving current.

Preferably, the drive box 19 is provided with an energizing terminal 18, and the storage tank 802 is electrically connected to the energizing terminal 18 through the shielding net 9 through a wire. The energizing terminal 18 supplies power to the motor 1901, and the input terminal of the motor 1901 is electrically connected to the PLC main controller 403. connection, the motor 1901 is electrically connected to the rotating blade 15 through the governor 1902; the motor can be driven by the PLC master controller, and at the same time, the electric storage tank supplies power to the motor, further embodying the energy-saving effect.

Preferably, the connecting pipe 7 is designed with three branch pipes 701, the three branch pipes 701 are respectively docked with the holes 1001 on the three placement plates 10, and the ends of the branch pipes 701 are equipped with fastening buckles 702; The rotating blades vacuum and ventilate the inside of the cabinet.

Preferably, the outer boundary of the cleaning tank 2 is provided with a wiring trough, and the single-chip microcomputer 2003 is electrically connected with the electric valve 27 and the water level sensor 26 through the wiring trough through the No. 3 relay 2006 connection wire; when the water level sensor detects the lowest position of the auxiliary slope When the water level is high, the signal is transmitted to the single-chip microcomputer. When the threshold is exceeded, the single-chip microcomputer controls the electric valve to open to drain water. When the water level recedes, the single-chip microcomputer controls the electric valve to close.

Preferably, a storage chip 2002 is installed on the main board 20 of the power supply, and the PLC main controller 403 is electrically connected to the single-chip microcomputer 2003 through the storage chip 2002 through a wire. It communicates with the electric ventilation butterfly valve 24, the gas detector 21 is electrically connected with the single-chip microcomputer 2003, and the electric ventilation butterfly valve 24 is conducted between the air guide pipe and the communication pipe 7; the gas detection signal in the gas detector is stored by the memory chip, For example, information such as the humidity, temperature and gas composition of the gas is convenient for later reading of the surrounding environment. Preferably, the solar panel 3 is fixed to the upper end of the cabinet body 1 through the support tube 301, and the upper end of the cabinet body 1 is welded to the bottom of the support tube 301 through the fixing frame 302. The photovoltaic controller 801 is electrically connected; it can well fix the solar panel, and it can also facilitate the flow of current and store electricity.

The working principle of the present invention: the cabinet door 101 can be opened by the handle 102, the sliders 13 at both ends of the placement plate 10 can be slid on the chute 12 for fixing, and then the necessary electrical components are installed on the placement plate 10 to be energized. The sensor 404 detects the heated temperature of the main control board 4, and transmits its temperature value to the PLC main controller 403, which can process the temperature value, thereby communicating with the single-chip microcomputer 2003 on the power supply main board 20; during use, Power is supplied to the motor 1901 through the solar panel 3. One end of the motor 1901 is grounded, and the other end is electrically connected to the PLC main controller 403. It can judge whether the detection value of the temperature sensor 404 exceeds the threshold, so that the PLC controller sends a driving signal to control whether the motor 1901 is driven. The rotating blade 15 rotates, and the rotating blade 15 drives the rotating frame 16 to rotate, and utilizes the rotating frame 16 to drive the cleaning cotton to clean; the power supply main board 20 is powered through the storage tank 802, and the single-chip microcomputer 2003 is powered through the voltage stabilizer 2001. At this time, the single-chip microcomputer 2003 respectively drives the vacuum cleaner 23, the electric ventilation butterfly valve 24 and the electric valve 27 through the No. 1 relay 2004, the No. 2 relay 2005 and the No. 3 relay 2006. The ventilation butterfly valve 24 can supply air to the cabinet body 1 and update the gas in the cabinet body 1, and after the electric valve 27 is opened, it can discharge the sewage in the cleaning tank 2; The control signal of the device 403, so that the clock information of the single-chip microcomputer 2003 can be changed according to the value of the temperature sensor 404, and the working hours of the three relays can be further controlled. efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A switchgear with self-cleaning function, comprising a cabinet body (1), the front end of the cabinet body (1) is provided with a cabinet door (101) opened by a handle (102), characterized in that: it also includes a The cleaning tank (2) in the cabinet and the solar panel (3) fixed on the upper end of the cabinet (1); The front end of the cabinet (1) is also equipped with a main control board (4), a temperature sensor (404) and a PLC main controller (403) are installed in the main control board (4), and the temperature sensor (404) It is electrically connected with the PLC main controller (403), and the PLC main controller (403) is powered by the battery (402); The inside of the cabinet (1) is provided with two vertical chutes (12), and three placement plates (10) are installed between the chutes (12) at both ends, and the two ends of the placement plate (10) pass through the sliding The block (13) is slidingly connected with the chute (10); two heat dissipation mechanisms are installed at the bottom of the placement plate (10), and the heat dissipation mechanism consists of a rotating leaf (15), a rotating frame (16) and a fixed frame (17). Composition, the rotating leaf (15) is installed in the middle of the rotating frame (16), and the space between the fixed frame (17) and the rotating frame (16) is filled with cleaning cotton; the two heat dissipation mechanisms are installed on the placement plate through wires (10) The motors (1901) in the drive box (19) at the bottom are electrically connected, and the cleaning tank is composed of a horizontal empty slot set on the upper part of the cabinet and a vertical empty slot set at one end of the chute, An electric storage tank (802) is installed in the horizontal empty slot (8), and the electric storage tank (802) is electrically connected to the solar panel (3) through a photovoltaic controller (801); The vertical slot is equipped with a power supply main board (20), a vacuum cleaner (23) and an electric ventilation butterfly valve (24), and the vacuum cleaner (23) and the electric ventilation butterfly valve (24) are fixed in the cleaning tank (2 ), the fixed plate divides the vertical trough into upper and lower parts, the lower part of the vertical trough is hollow, and the end of the lower part of the vertical trough close to the inner wall of the cabinet passes through the electric valve (27 ) communicates with the outside world, and a water level sensor (26) is installed at one end of the electric valve (27); A voltage stabilizer (2001), a memory chip (2002), a single-chip microcomputer (2003), a No. 1 relay (2004), a No. 2 relay (2005) and a No. 3 relay (2006) are installed on the power supply main board (20). The storage tank (802) is connected to the single-chip microcomputer (2003) by a wire through the voltage stabilizer (2001), and the single-chip microcomputer (2003) is connected to the No. 1 relay (2004), No. 2 relay (2005) and No. 3 relay ( 2006) Electrically connect the vacuum cleaner (23), the electric ventilation butterfly valve (24) and the electric valve (27); the electric ventilation butterfly valve (24) communicates with the outside through the filter screen (22) installed on the side of the cabinet (1); The placement plate (10) in the cabinet (1) is provided with a hole (1001) at one end close to the vertical empty slot, and one end of the vacuum cleaner (23) passes through the hole (1001) and the rotating blade through the connecting pipe (7). (15) CONNECTED. 2. A switchgear with self-cleaning function according to claim 1, characterized in that: the solar panel (3) is fixed to the upper end of the cabinet (1) through a support tube (301), and the cabinet ( 1) The upper end is welded to the bottom of the support tube (301) through the fixing frame (302). The support tube (301) is hollow, and the wire passes through the support tube (301) and the photovoltaic controller ( 801) electrical connections. 3. A switchgear with self-cleaning function according to claim 1, characterized in that: the outer side of the main control board (4) at the front end of the cabinet (1) is covered by a waterproof frame (401), so that A dust outlet is provided on the side of the cabinet, and the dust outlet corresponds to the position of the output port of the vacuum cleaner. 4. A switch cabinet with self-cleaning function according to claim 1, characterized in that: a spacer (103) is installed at the bottom of the cabinet body (1), and the middle part of the placement plate (10) has multiple openings a connecting port (14); the bottom in the cabinet (1) is designed for the main slope (11), the bottom in the vertical trough is designed for the auxiliary slope (25), and the main slope (11) is connected to the auxiliary slope (25). The secondary slopes (25) are connected. 5. A switchgear with self-cleaning function according to claim 1, characterized in that: a transparent plate (6) is installed on the side of the cabinet close to the vertical trough, and the transparent plate (6) passes through Fastening screws (601) are fixed with the cabinet body. 6. A switchgear with self-cleaning function according to claim 1, characterized in that: the chute (12) in the cabinet (1) is surrounded by shielding nets (9), and the placement plate (10) is filled with built-in copper wire (28). 7. A switch cabinet with self-cleaning function according to claim 6, characterized in that: the drive box (19) is provided with a power terminal (18), and the storage tank (802) is passed through a wire The shielding network (9) is electrically connected to the energization terminal (18), the energization terminal (18) supplies power to the motor (1901), the input end of the motor (1901) is electrically connected to the PLC main controller (403), and the The motor (1901) is electrically connected to the rotating blade (15) through the governor (1902). 8. A switchgear with self-cleaning function according to claim 1, characterized in that: the connecting pipe (7) is designed with three branch pipes (701), and the three branch pipes (701) are respectively connected with three placement plates The holes (1001) on (10) are butted, and the fastening buckle (702) is installed at the end of the branch pipe (701). 9. A switchgear with self-cleaning function according to claim 4, characterized in that: the outer boundary of the cleaning tank (2) is provided with a wiring trough, and the single-chip microcomputer (2003) passes through the No. 3 relay (2006 ) The connecting wire is electrically connected to the electric valve (27) and the water level sensor (26) through the wiring trough. 10. A switchgear with self-cleaning function according to claim 1, characterized in that: a memory chip (2002) is installed on the power supply main board (20), and the PLC main controller (403) is connected through a wire The memory chip (2002) is electrically connected to the single-chip microcomputer (2003), the cleaning tank (2) communicates with the outside air through the filter screen (22), and the filter screen (22) passes through the gas detector (21) and the electric ventilation butterfly valve (24) is connected, the gas detector (21) is electrically connected to the single-chip microcomputer (2003), and the electric ventilation butterfly valve (24) is connected to the communication pipe (7) through the air duct.