CN218915161U

CN218915161U - Heating ventilation air conditioner with self-cleaning function

Info

Publication number: CN218915161U
Application number: CN202223130476.6U
Authority: CN
Inventors: 严子豪; 沈夏冰; 李相辰; 李云; 刘洋洋; 韩伟
Original assignee: Zhejiang Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: Zhejiang Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-25
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a heating ventilation air conditioner with a self-cleaning function, which comprises an external heating ventilation air conditioner (1), a jet pipe (5), a clean water containing box (8), a self-cleaning component, a water collecting component and a pressurizing component; the heating ventilation air conditioner external unit is arranged outdoors and connected with the air conditioner indoor unit (9), the cleaning water containing box is arranged at the top of the heating ventilation air conditioner external unit, the top of the cleaning water containing box is open, the water collecting component is arranged at the top opening of the cleaning water containing box, and the cleaning water containing box is opened or closed through the water collecting component; the water inlet end of the pressurizing assembly is communicated with the cleaning water containing box, and the water outlet end of the pressurizing assembly is connected with the water inlet end of the self-cleaning assembly; the self-cleaning assembly is arranged in the heating ventilation air conditioner external unit, the plurality of injection pipes are respectively arranged on the water outlet end of the self-cleaning assembly at intervals, and the plurality of injection pipes are arranged facing the condenser (12) and the net surface of the heating ventilation air conditioner external unit. The utility model can automatically clean the external machine of the heating ventilation air conditioner.

Description

Heating ventilation air conditioner with self-cleaning function

Technical Field

The utility model relates to a heating ventilation air conditioner, in particular to a heating ventilation air conditioner with a self-cleaning function.

Background

The heating ventilation air conditioner is an air conditioner having heating, ventilation and air conditioning functions. Chinese patent No. 217274517U discloses a heating ventilation air conditioner with an automatic cleaning function, which comprises an air conditioner body, wherein a cleaning structure is arranged on the air conditioner body, the cleaning structure comprises a filter screen, the filter screen is fixedly connected in the air conditioner body, a fixed shaft is fixedly connected in the air conditioner body, a lantern ring is rotationally connected on the fixed shaft, fan blades are fixedly connected on the lantern ring, a turntable is fixedly connected on the lantern ring, a fixed column is fixedly connected on the turntable, a movable ring is connected on the fixed column in a sliding manner, a sliding rod is fixedly connected on the movable ring, a fixed ring is fixedly connected on the fixed shaft, the fixed ring is in sliding connection with the sliding rod, and a brush is fixedly connected on the sliding rod; can clear up its inside filter screen at the warm air conditioner during operation, avoid piling up the dust and breeding the bacterium on its deep bead, the ventilation volume and the healthy of indoor personnel of air conditioner produce the influence.

Said invented heating ventilation air conditioner has the following defects: the heating ventilation air conditioner can carry out self-cleaning to indoor machine in the use, and there is the condenser to need dispel the heat through the fan in the outdoor machine inside, because the outer machine is installed outdoors for a long time, the dust volume is more, and the high altitude cleaning of outer machine is comparatively inconvenient. Once the dust is blocked, the normal use of the condenser can be influenced by the external machine, and the cleaning and using effects are poor. Therefore, it is necessary to provide a heating ventilation air conditioner capable of self-cleaning an external machine.

Disclosure of Invention

The utility model aims to provide a heating ventilation air conditioner with a self-cleaning function, which can automatically clean an external machine of the heating ventilation air conditioner.

The utility model is realized in the following way:

a heating ventilation air conditioner with a self-cleaning function comprises a heating ventilation air conditioner external unit, a spray pipe, a cleaning water bearing box, a self-cleaning component, a water collecting component and a pressurizing component; the heating ventilation air conditioner external unit is arranged outdoors and connected with the air conditioner indoor unit, the cleaning water bearing box is arranged at the top of the heating ventilation air conditioner external unit, the cleaning water bearing box is of a box structure with an open top, the water collecting component is arranged at the open top of the cleaning water bearing box, and the cleaning water bearing box is opened or closed through the water collecting component; the water inlet end of the pressurizing assembly is communicated with the cleaning water bearing box, and the water outlet end of the pressurizing assembly is connected with the water inlet end of the self-cleaning assembly; the self-cleaning assembly is arranged in the heating ventilation air conditioner external unit, the plurality of injection pipes are respectively arranged on the water outlet end of the self-cleaning assembly at intervals, and the plurality of injection pipes are arranged facing the condenser and the net surface of the heating ventilation air conditioner external unit.

The water collecting assembly comprises a rain guiding cover plate, a rain sensor, a controller, a cover opening mechanism and a cover turning mechanism; the rain guide cover plate is matched with the cover at the top opening of the clean water bearing box, so that the clean water bearing box forms a closed box body; the rainwater sensor and the controller are both arranged on the outer side wall of the clean water bearing box, the output end of the rainwater sensor is connected with the input end of the controller, and the output end of the controller is connected with the cover opening mechanism; the cover opening mechanism is arranged on one side of the top of the clean water bearing box, the cover opening mechanism is rotatably connected with one end of the rain guide cover plate, and the rain guide cover plate is slidably covered on the clean water bearing box through the cover opening mechanism; the flip mechanism is arranged on the outer wall of one end of the clean water bearing box and positioned below the rain guide cover plate, and the rain guide cover plate can be arranged on the clean water bearing box in a turnover mode through the flip mechanism.

The cover opening mechanism comprises a concave support plate, a lantern ring linkage block, a rotating shaft lever, a threaded lantern ring block, a linkage screw rod and a second servo driving motor; the concave support plate is arranged on one side of the top of the clean water bearing box and positioned below the side of the rain guide cover plate, is of a concave structure and is arranged along the length direction of the rain guide cover plate; the linkage screw rod is rotatably embedded in the concave cavity of the concave support plate, one end of the linkage screw rod penetrates through the concave support plate and is coaxially and fixedly connected with the output end of the second servo driving motor, and the second servo driving motor is arranged on the outer wall of the cleaning water bearing box and is electrically connected with the controller; the threaded sleeve ring block is embedded in the concave cavity of the concave support plate in a matching way, and the linkage screw rod penetrates through the threaded sleeve ring block and is in threaded rotary connection with the threaded sleeve ring block; the lantern ring linkage block is C-shaped structure and suit in the outside of spill extension board, and the one end and the screw thread lantern ring piece fixed connection of lantern ring linkage block, the rotatable dress of one end of rotation axostylus axostyle is in the other end of lantern ring linkage block, the other end of rotation axostylus axostyle and the one end lateral wall fixed connection of rain guide apron.

The flip mechanism comprises an upward pushing cylinder, a linkage concave plate, a rotating rod and a roller; the upper pushing cylinder is arranged on the outer wall of the clean water bearing box, the linkage concave plate is of a U-shaped structure with one end open, the piston end of the upper pushing cylinder is fixedly connected with the sealing end of the linkage concave plate, and the roller wheel is rotatably embedded at the opening end of the linkage concave plate through the rotating rod, so that the linkage concave plate and the roller wheel can be arranged below the rain guiding cover plate in a lifting manner, the roller wheel can be in rolling contact with the lower surface of the rain guiding cover plate, and the rain guiding cover plate can be arranged at the top of the clean water bearing box in a turnover manner through the upper pushing cylinder.

The side end of the linkage concave plate is provided with a proximity switch through a positioning ring block, and the proximity switch can be in contact connection with the bottom surface of the rain guide cover plate; the proximity switch is electrically connected with the push-up cylinder.

The top surface of the rain guide cover plate is of an arc-shaped surface structure with a low middle and high two sides, and limit support plates are arranged at the edges of the two sides of the rain guide cover plate.

The supercharging assembly comprises an electric control valve, a liquid compression tank, a singlechip controller, a one-way valve, a pressure sensor and a pump; the water inlet end of the pump is communicated with the clean water containing tank through a suction pipe, the water outlet end of the pump is connected with the water inlet end of the liquid compression tank through a one-way valve, and the water outlet end of the liquid compression tank is communicated with the self-cleaning component through an electric control valve; the pressure sensor is connected to the liquid compression tank, the output end of the pressure sensor is connected with the input end of the single-chip controller, the single-chip controller is arranged on the outer wall of the liquid compression tank, and the output end of the single-chip controller is electrically connected with the pump.

The self-cleaning assembly comprises a self-cleaning pipe, a shunt pipe and a lifting mechanism; one end of the self-cleaning pipe is communicated with the liquid compression tank through an electric control valve, the other end of the self-cleaning pipe is communicated with the shunt pipe, and a plurality of injection pipes are arranged on the shunt pipe at intervals; the lifting mechanism is arranged in the heating ventilation air conditioner external unit, and the shunt pipes are arranged in the heating ventilation air conditioner external unit in a lifting manner through the lifting mechanism, so that the injection range of the plurality of injection pipes can cover the whole condenser and the net surface.

The lifting mechanism comprises a threaded sleeve pipe, a transmission screw and a first servo driving motor; one end of the transmission screw is coaxially and fixedly connected with the output end of the first servo driving motor, and the other end of one end of the transmission screw is rotatably arranged on the inner wall of the heating ventilation air conditioner; one end of the threaded sleeve pipe is communicated with the self-cleaning pipe and the shunt pipe, and a screw hole is formed at the other end of the threaded sleeve pipe, so that the transmission screw penetrates through the other end of the threaded sleeve pipe through the screw hole and is screwed with the threaded sleeve pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. the rain cover plate can slide and turn over to open through the cover opening mechanism and the cover turning mechanism under the induction start of the rain sensor, so that the clean water containing box can collect rain water, the outer machine of the heating ventilation air conditioner is self-cleaned by the rain water, an external water source is not needed, and the manual water addition is not needed, so that the rain water collecting device is energy-saving and environment-friendly, and time-saving and labor-saving in operation; meanwhile, the rainwater can be guided into the clean water bearing box by utilizing the top surface of the cambered surface-shaped structure of the rainwater guide cover plate and the limiting support plates on two sides, so that the rainwater can be efficiently collected.

2. The self-cleaning assembly is arranged, so that the condenser and the net surface of the heating ventilation air conditioner external unit can be cleaned by rainwater injection through the plurality of injection pipes which are distributed at intervals, dust and impurities adhered to the condenser and the net surface are clear, and an effective cleaning effect is achieved; meanwhile, the injection pipes can reciprocate up and down along the transmission screw, so that the injection range of a plurality of injection pipes can cover the whole condenser and the net surface, the cleaning thoroughness is ensured, the normal operation of the condenser is further ensured, the manual cleaning is not needed, and the potential safety hazard of the cleaning high-altitude operation of an external machine is avoided.

3. The utility model can realize the pressurization of liquid by unidirectional injection of rainwater into the liquid compression tank due to the pressurization component, so that when the pressure threshold value is reached in the liquid compression tank, the electric control valve is opened, the rainwater is conveyed into the self-cleaning pipe, and the self-cleaning effect and efficiency are improved by spraying the rainwater to the condenser and the net surface through the spraying pipe under a certain pressure.

Drawings

FIG. 1 is a perspective view of a heating ventilation air conditioner with self-cleaning function of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the air conditioner external unit with self-cleaning function in the air conditioner;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a perspective view of a water collection assembly in a hvac with self-cleaning function of the present utility model;

FIG. 5 is a perspective view of the cover opening mechanism of the heating ventilation air conditioner with the self-cleaning function;

FIG. 6 is a perspective view of a clean water carrying case in a hvac having a self-cleaning function in accordance with the present utility model;

FIG. 7 is a perspective view of a flip mechanism in a hvac having a self-cleaning function in accordance with the present utility model;

fig. 8 is a perspective view of a supercharging assembly in a hvac with self-cleaning function according to the present utility model.

In the figure, 1, a heating ventilation air conditioner external unit; 2. a self-cleaning tube; 3. a threaded sleeve pipe; 4. a shunt; 5. a jet pipe; 6. a drive screw; 7. a first servo drive motor; 8. cleaning the water bearing box; 9. an air conditioner indoor unit; 10. an evaporator; 11. a heat radiation fan; 12. a condenser; 13. a compressor; 14. a concave support plate; 15. a collar linkage block; 16. a rain guiding cover plate; 17. a rain sensor; 18. a controller; 19. limiting support plates; 20. rotating the shaft lever; 21. a threaded collar block; 22. a linkage screw; 23. a second servo drive motor; 24. a push-up cylinder; 25. a linkage concave plate; 26. a rotating lever; 27. a roller; 28. positioning ring blocks; 29. a proximity switch; 30. an electrically controlled valve; 31. a liquid compression tank; 32. a singlechip controller; 33. a one-way valve; 34. a pressure sensor; 35. a pump machine; 36. a suction pipe.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples.

Referring to fig. 1 to 3, a heating ventilation air conditioner with self-cleaning function comprises an external heating ventilation air conditioner 1, a spray pipe 5, a cleaning water bearing box 8, a self-cleaning component, a water collecting component and a pressurizing component; the heating ventilation air conditioner external unit 1 is arranged outdoors and connected with the air conditioner indoor unit 9, the cleaning water bearing box 8 is arranged at the top of the heating ventilation air conditioner external unit 1, the cleaning water bearing box 8 is of a box-shaped structure with an open top, the water collecting component is arranged at the open top of the cleaning water bearing box 8, and the cleaning water bearing box 8 is opened or closed through the water collecting component; the pressurizing assembly is arranged on the outer wall of the cleaning water bearing box 8, the water inlet end of the pressurizing assembly is communicated with the cleaning water bearing box 8 through a suction pipe 36, and the water outlet end of the pressurizing assembly is connected with the water inlet end of the self-cleaning assembly; the self-cleaning component is arranged in the heating ventilation air conditioner external unit 1, a plurality of injection pipes 5 are respectively arranged on the water outlet end of the self-cleaning component at intervals, and the injection pipes 5 are arranged facing the condenser 12 and the net surface of the heating ventilation air conditioner external unit 1.

The clean water containing box 8 is used for collecting rainwater, the condenser 12 and the net surface of the heating ventilation air conditioner external unit 1 are sprayed and cleaned through the rainwater, an external water source is not needed, the energy is saved, the environment is protected, and a necessary filter screen and other structures can be installed in the clean water containing box 8 so as to prevent the pipeline from being blocked by garbage and sundries. The water collecting component can be opened when rain is sensed, rainwater in the clean water containing box 8 is convenient to collect, and the clean water containing box 8 is closed when no rain is sensed, so that rainwater evaporation is reduced, and garbage sundries are prevented from entering the clean water containing box 8.

The self-cleaning component is used for controlling the up-and-down movement of the plurality of spray pipes 5, so that the spray range of the plurality of spray pipes 5 can cover the whole condenser 12 and the net surface, and the self-cleaning effect is ensured. The increasing component is used for increasing the spraying pressure of a plurality of spraying pipes 5, and further improving the self-cleaning effect and efficiency. The number and the setting interval of the spray pipes 5 can be adjusted according to the actual condition of the heating ventilation air conditioner external unit 1, and the spray pipes 5 can be provided with two nozzles in different directions for facing the condenser 12 and the net surface of the heating ventilation air conditioner external unit 1 so as to ensure effective cleaning of the heating ventilation air conditioner external unit 1.

The self-cleaning component, the water collecting component and the pressurizing component can be controlled in a linkage way through a controller of the heating ventilation air conditioner external unit 1 or an external controller, a timer can be arranged in the controller, and parameters such as self-cleaning time, self-cleaning period and the like are preset, so that the self-cleaning function of the condenser and the net surface of the heating ventilation air conditioner external unit 1 is realized in the set time.

Referring to fig. 4 to 7, the water collecting assembly includes a rain guiding cover plate 16, a rain sensor 17, a controller 18, a cover opening mechanism and a cover turning mechanism; the rain guiding cover plate 16 is matched and covered at the top opening of the clean water bearing box 8, so that the clean water bearing box 8 forms a closed box body; the rainwater sensor 17 and the controller 18 are both arranged on the outer side wall of the clean water bearing box 8, the output end of the rainwater sensor 17 is connected with the input end of the controller 18, and the output end of the controller 18 is connected with the cover opening mechanism; the cover opening mechanism is arranged on one side of the top of the clean water carrying case 8, the cover opening mechanism is rotatably connected with one end of the rain guiding cover plate 16, and the rain guiding cover plate 16 is slidably covered on the clean water carrying case 8 through the cover opening mechanism; the flip mechanism is arranged on the outer wall of one end of the clean water bearing box 8 and is positioned below the rain guide cover plate 16, and the rain guide cover plate 16 can be arranged on the clean water bearing box 8 in a turnover mode through the flip mechanism.

The rain sensor 17 may be a light sensing type or piezoelectric type rain sensor in the prior art, and is used for detecting whether it rains, if it rains, the rain sensor 17 sends a start signal to the controller 18, the controller 18 starts and slides the rain guiding cover plate 16 through the cover opening mechanism, so that the top opening of the clean water carrying case 8 is opened for collecting rain, and meanwhile, the cover opening mechanism turns over to open the rain guiding cover plate 16, so as to achieve better water guiding and collecting effects. If no rain is detected, the rain sensor 17 sends a closing signal to the controller 18, and the controller 18 controls the cover opening mechanism to reversely slide the rain guiding cover plate 16 and downwards turn over the rain guiding cover plate 16 through the cover opening mechanism, so that the rain guiding cover plate 16 closes the top opening of the clean water bearing box 8.

Referring to fig. 4 to 6, the cover opening mechanism includes a concave support plate 14, a collar linkage block 15, a rotating shaft lever 20, a threaded collar block 21, a linkage screw 22 and a second servo driving motor 23; the concave support plate 14 is arranged on one side of the top of the clean water bearing box 8 and is positioned below the side of the rain guide cover plate 16, and the concave support plate 14 is of a concave structure and is arranged along the length direction of the rain guide cover plate 16; the linkage screw 22 is rotatably embedded in the concave cavity of the concave support plate 14 through a rotating bearing, one end of the linkage screw 22 penetrates through the concave support plate 14 and is fixedly connected with the output end of a second servo drive motor 23 in a coaxial way, and the second servo drive motor 23 is arranged on the outer wall of the clean water bearing box 8 and is electrically connected with the controller 18; the threaded collar block 21 is embedded in the concave cavity of the concave support plate 14 in a matching way, and the linkage screw 22 penetrates through the threaded collar block 21 and is in threaded rotary connection with the threaded collar block 21; the lantern ring linkage block 15 is of a C-shaped structure and is sleeved outside the concave support plate 14, one end of the lantern ring linkage block 15 is fixedly connected with the threaded lantern ring block 21, one end of the rotating shaft lever 20 is rotatably embedded in the other end of the lantern ring linkage block 15 through a rotating bearing, and the other end of the rotating shaft lever 20 is fixedly connected with one end side wall of the rain cover plate 16.

The second servo drive motor 23 may be a small motor having forward and reverse rotation in the related art, and the second servo drive motor 23 is rotated forward or reverse under the control of the controller 18. The shape of the threaded collar block 21 may be determined according to the shape of the concave cavity of the concave support plate 14 to ensure that the threaded collar block 21 does not rotate relative to the concave support plate 14. When the output end of the second servo driving motor 23 rotates in the forward direction, the linkage screw 22 rotates synchronously, and the threaded sleeve ring block 21 cannot rotate due to the limitation of the concave cavity of the concave support plate 14, the rotation of the linkage screw 22 is converted into linear motion of the threaded sleeve ring block 21 along the axial direction of the linkage screw 22 through threads, and the collar linkage block 15 is driven to move synchronously, so that the rain guide cover plate 16 is driven to move synchronously through the rotating shaft rod 20, and the cover opening action of the rain guide cover plate 16 is realized. Similarly, when the output end of the second servo driving motor 23 reversely rotates, the rain guiding cover plate 16 can realize a closing action, and the details are not repeated here.

Referring to fig. 6 and 7, the flip cover mechanism includes a push-up cylinder 24, a linkage concave 25, a rotating rod 26 and a roller 27; the push-up cylinder 24 is arranged on the outer wall of the clean water bearing box 8 and is positioned below one end of the rain guide cover plate 16 away from the rotating shaft lever 20; the linkage concave 25 is U-shaped with one end open, the piston end of the push-up cylinder 24 is fixedly connected with the sealing end of the linkage concave 25, the roller 27 is rotatably embedded in the opening end of the linkage concave 25 through the rotating rod 26, the linkage concave 25 and the roller 27 are arranged below the rain guiding cover 16 in a liftable manner, the roller 27 can be in rolling contact with the lower surface of the rain guiding cover 16, and the rain guiding cover 16 can be arranged at the top of the cleaning water containing tank 8 in a reversible manner through the push-up cylinder 24.

When the piston end of the push-up cylinder 24 is lifted upwards, the linkage concave plate 25 and the roller 27 are lifted upwards synchronously, one end of the rain guiding cover plate 16 far away from the rotating shaft rod 20 is lifted upwards, the rain guiding cover plate 16 is turned upwards around the rotating shaft rod 20 to be opened, an inclined surface is formed, and rainwater is guided to flow into the clean water bearing box 8 conveniently. The roller 27 rotates around the rotating rod 26 and is in rolling contact with the bottom surface of the rain guiding cover plate 16, the surface of the roller 27 is polished to convert sliding friction into rolling friction, and friction resistance of the rain guiding cover plate 16 is reduced, so that the rain guiding cover plate 16 moves and overturns smoothly. Meanwhile, when the piston end of the push-up cylinder 24 is retracted, the rain guide cover plate 16 can be turned downwards to be closed, and the description is omitted here.

Referring to fig. 7, a proximity switch 29 is mounted at the side end of the linkage concave 25 through a positioning ring block 28, and the proximity switch 29 can be in contact connection with the bottom surface of the rain cover 16; the proximity switch 29 is electrically connected to the push-up cylinder 24.

The proximity switch 29 can be an eddy-current proximity switch in the prior art, the rain guide cover plate 16 can be made of metal materials, and when the rain guide cover plate 16 approaches the proximity switch 29, the proximity switch 29 utilizes an internal inductance coil, a capacitor, a transistor and the like to form an alternating magnetic field to output a switching signal, so that inflation or deflation in the push-up cylinder 24 is controlled, and the lifting and retraction actions of the piston end of the push-up cylinder 24 are realized.

Referring to fig. 4 and 6, the top surface of the rain guiding cover plate 16 has an arc-shaped structure with a low middle and high two sides, and two side edges of the rain guiding cover plate 16 are provided with limiting support plates 19.

The rain guiding cover plate 16 with the arc-shaped surface structure can better concentrate rainwater in the concave part of the middle part of the rain guiding cover plate 16, is favorable for rainwater diversion to enter the clean water containing box 8, and the limit support plates 19 on two sides can further reduce rainwater outflow on the rain guiding cover plate 16, so that the rainwater collecting efficiency in the clean water containing box 8 is ensured.

Referring to fig. 8, the pressurizing assembly includes an electric control valve 30, a liquid compression tank 31, a single-chip controller 32, a one-way valve 33, a pressure sensor 34 and a pump 35; the water inlet end of the pump 35 is communicated with the clean water containing tank 8 through a suction pipe 36, the water outlet end of the pump 35 is connected with the water inlet end of the liquid compression tank 31 through a one-way valve 33, and the water outlet end of the liquid compression tank 31 is communicated with the self-cleaning component through an electric control valve 30; the pressure sensor 34 is connected to the liquid compression tank 31, the output end of the pressure sensor 34 is connected to the input end of the single-chip microcomputer controller 32, the single-chip microcomputer controller 32 is arranged on the outer wall of the liquid compression tank 31, and the output end of the single-chip microcomputer controller 32 is electrically connected to the pump 35.

The liquid compression tank 31 may be made of alloy steel to ensure safe use in a pressurized state. In a state where the electric control valve 30 is closed, the pump 35 pumps rainwater stored in the clean water containing tank 8 through the suction pipe 36 and pumps the rainwater into the liquid compression tank 31, and since the one-way valve 33 is a one-way valve, backflow is prevented, and the rainwater is ensured to be pumped into the liquid compression tank 31 and pressurized. The pressure of the liquid compression tank 31 can be detected in real time by the pressure sensor 34 to ensure the safety of the liquid compression tank 31. The pressure threshold value of the liquid compression tank 31 can be preset in the single-chip microcomputer controller 32, and when the liquid compression tank 31 reaches the pressure threshold value, the single-chip microcomputer controller 32 sends an electric signal to control the electric control valve 30 to be opened, so that rainwater in the liquid compression tank 31 is pressed into the self-cleaning component under the action of pressure and is sprayed at a certain pressure.

Referring to fig. 2 and 3, the self-cleaning assembly includes a self-cleaning tube 2, a shunt tube 4 and a lifting mechanism; one end of the self-cleaning pipe 2 is communicated with a liquid compression tank 31 through an electric control valve 30, the other end of the self-cleaning pipe 2 is communicated with the shunt pipe 4, and a plurality of injection pipes 5 are arranged on the shunt pipe 4 at intervals; the lifting mechanism is arranged in the heating ventilation air conditioner external unit 1, and the shunt pipe 4 is arranged in the heating ventilation air conditioner external unit 1 in a lifting manner through the lifting mechanism, so that the injection range of the plurality of injection pipes 5 can cover the whole condenser 12 and the net surface.

The pressurized rainwater flows into the shunt tubes 4 after entering the self-cleaning tubes 2, and is uniformly distributed to the plurality of injection tubes 5 by the shunt tubes 4, so that the pressurized rainwater is finally injected to the condenser 12 and the net surface through the plurality of injection tubes 5 under a certain pressure, and the self-cleaning purpose of cleaning dust and sundries is achieved. Preferably, both the shunt tube 4 and the injection tube 5 are made of metal pipes, and the injection tube 5 is welded on the shunt tube 4.

Referring to fig. 3, the lifting mechanism includes a threaded sleeve pipe 3, a driving screw 6 and a first servo driving motor 7; one end of the transmission screw rod 6 is coaxially and fixedly connected with the output end of the first servo driving motor 7, and the other end of one end of the transmission screw rod 6 is rotatably arranged on the inner wall of the heating, ventilation and air conditioning outer machine 1 through a rotating bearing; one end of the threaded sleeve pipe 3 is communicated with the self-cleaning pipe 2 and the shunt pipe 4, and a screw hole is formed at the other end of the threaded sleeve pipe 3, so that the transmission screw 6 penetrates through the other end of the threaded sleeve pipe 3 through the screw hole and is screwed with the threaded sleeve pipe 3.

When the first servo driving motor 7 is started, the transmission screw 6 can be driven to synchronously rotate. The sliding rail can be arranged on the inner wall of the heating ventilation air conditioner external machine 1, the sliding block is arranged at the other end of the threaded sleeve pipe 3 and is embedded on the sliding rail to slide along the sliding rail, and the sliding block is used for limiting the rotation of the threaded sleeve pipe 3 and guiding the movement track of the threaded sleeve pipe 3, so that the rotation movement of the driving screw 6 is converted into the linear movement of the threaded sleeve pipe 3 along the axial direction of the driving screw 6, and then the threaded sleeve pipe 3, the shunt pipe 4 and the injection pipe 5 are driven to move synchronously along the axial direction of the driving screw 6. The setting direction of the driving screw 6 can be determined according to the arrangement direction of the condenser 12 and the net surface, so that the whole condenser 12 and the net surface can be covered when a plurality of injection pipes 5 are moved and injected, and the self-cleaning is thoroughly ensured. Preferably, the threaded bushing collar 3 and the drive screw 6 are made of stainless steel.

Referring to fig. 1 and 2, the working principle of the heating ventilation air conditioner is as follows:

the evaporator 10 is inserted into the air conditioning indoor unit 9, the condenser 12 is arranged on one side of the inner wall of the heating ventilation air conditioning outdoor unit 1, the radiator fan 11 is arranged on one side of the condenser 12, one end part of the condenser 12 is communicated with the compressor 13, the compressor 13 and the condenser 12 are both communicated with the evaporator 10, the condenser 12 is made of copper materials so as to conveniently input the refrigerant and the freon into the compressor 13, the compressor 13 compresses the refrigerant and the freon to form a high-temperature high-pressure state and enters the condenser 12, meanwhile, the radiator fan 11 is used for radiating heat, the freon is subjected to phase change to form liquid which is conveyed into the expansion valve in the air conditioning indoor unit 9, only a small gap is reserved to enable the refrigerant to be subjected to phase change into low-temperature low-pressure gas again through the freon, the low-temperature low-pressure gas absorbs heat to enable the indoor temperature to be reduced, and the cooling operation is realized; at the same time, the temperature raising operation can also be realized by the compressor 13. The structure of the heating ventilation air conditioner and the working principle thereof belong to the prior art, and are not repeated here.

Referring to fig. 1 to 8, the application method and the working principle of the utility model are as follows:

the heating ventilation air conditioner external unit 1 is installed outdoors, and when external rainwater falls onto the rainwater sensor 17, the rainwater sensor 17 senses the rainwater and sends a starting signal to the controller 18 to wake up the controller 18. The controller 18 starts a second servo driving motor 23, the second servo driving motor 23 drives the linkage screw rod 22 to synchronously rotate, the linkage screw rod 22 drives the thread collar block 21 to move in the concave cavity of the concave support plate 14 by means of thread rotation, and the thread collar block 21 drives the collar linkage block 15 and the rotating shaft rod 20 to synchronously move, so that the rotating shaft rod 20 can drive the rain guide cover plate 16 to axially move along the linkage screw rod 22, the cover opening of the clean water containing box 8 is realized, and the clean water containing box 8 is convenient for collecting rainwater.

When the rain guiding cover plate 16 slides to be opened, the rain guiding cover plate 16 moves to be in contact connection with the proximity switch 29, the proximity switch 29 triggers the upward pushing cylinder 24, so that the piston end of the upward pushing cylinder 24 is pushed upwards, one end of the rain guiding cover plate 16, which is far away from the lantern ring linkage block 15, is lifted upwards, the rain guiding cover plate 16 turns around the rotating shaft rod 20, the inclined rain guiding cover plate 16 and the arc-shaped top surfaces of the rain guiding cover plate 16 and the limiting support plates 19 on two sides can conduct more efficiently, rainwater can enter the clean water containing box 8 conveniently, and the water collecting efficiency is improved. Simultaneously, the roller 27 is in rolling contact with the bottom surface of the rain guide cover plate 16, so that the reliable support of the rain guide cover plate 16 is ensured, meanwhile, the friction force between the roller and the rain guide cover plate 16 is reduced, and the smoothness of sliding and overturning of the rain guide cover plate 16 is ensured.

When the rainwater sensor 17 does not sense rainwater, the controller 18 starts the second servo driving motor 23 to drive the linkage screw 22 to reversely rotate, the air cylinder 24 is pushed upwards to retract the piston rod, the rain guiding cover plate 16 slides, overturns and resets and covers the clean water bearing box 8, the clean water bearing box 8 is closed, evaporation of the rainwater is reduced, and garbage and sundries are prevented from entering the clean water bearing box 8.

When self-cleaning is needed, a pressure threshold value in the liquid compression tank 31 can be preset on the singlechip controller 32, the electric control valve 30 is closed, the pump 35 is started to enable the suction pipe 36 to generate negative pressure, rainwater in the cleaning water bearing box 8 is sucked into the one-way valve 33 under the action of the negative pressure through the suction pipe 36, and the one-way valve 33 is unidirectional, so that the rainwater enters the liquid compression tank 31 along the one-way valve 33 and is gradually pressurized. The pressure sensor 34 can be used for sensing the liquid pressure in the liquid compression tank 31 in real time, when the liquid pressure in the liquid compression tank 31 reaches a pressure threshold value, the electric control valve 30 is opened, so that high-pressure rainwater in the liquid compression tank 31 enters the self-cleaning pipe 2 and enters the shunt pipe 4 through the threaded sleeve pipe 3, and finally, the condenser 12 and the net surface of the heating, ventilation and air conditioning external machine 1 are sprayed from each spray pipe 5, so that the self-cleaning of the condenser 12 and the net surface is realized.

In the self-cleaning process, the first servo driving motor 7 is started and drives the transmission screw 6 to synchronously and reciprocally rotate in the forward direction and the reverse direction, so that the threaded sleeve pipe 3 drives the shunt pipe 4 to vertically move along the axial direction of the transmission screw 6 under the action of threads, and the synchronous up-and-down movement of the spray pipes 5 and the spray cleaning of different positions of the condenser 12 and the net surface are realized.

The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims

1. A heating ventilation air conditioner with self-cleaning function is characterized in that: comprises a heating ventilation air conditioner external unit (1), a jet pipe (5), a clean water containing box (8), a self-cleaning component, a water collecting component and a pressurizing component; the heating ventilation air conditioner external unit (1) is arranged outdoors and connected with the air conditioner indoor unit (9), the cleaning water bearing box (8) is arranged at the top of the heating ventilation air conditioner external unit (1), the cleaning water bearing box (8) is of a box structure with an open top, the water collecting assembly is arranged at the open top of the cleaning water bearing box (8), and the cleaning water bearing box (8) is opened or closed through the water collecting assembly; the pressurizing assembly is arranged on the outer wall of the clean water containing box (8), the water inlet end of the pressurizing assembly is communicated with the clean water containing box (8), and the water outlet end of the pressurizing assembly is connected with the water inlet end of the self-cleaning assembly; the self-cleaning assembly is arranged in the heating ventilation air conditioner external unit (1), the plurality of injection pipes (5) are respectively arranged on the water outlet end of the self-cleaning assembly at intervals, and the plurality of injection pipes (5) are arranged facing the condenser (12) and the net surface of the heating ventilation air conditioner external unit (1).

2. The heating ventilation air conditioner with self-cleaning function according to claim 1, characterized in that: the water collecting assembly comprises a rain guiding cover plate (16), a rain sensor (17), a controller (18), a cover opening mechanism and a cover turning mechanism; the rain guiding cover plate (16) is matched with the cover at the top opening of the clean water containing box (8), so that the clean water containing box (8) forms a closed box body; the rainwater sensor (17) and the controller (18) are both arranged on the outer side wall of the clean water containing box (8), the output end of the rainwater sensor (17) is connected with the input end of the controller (18), and the output end of the controller (18) is connected with the cover opening mechanism; the cover opening mechanism is arranged on one side of the top of the clean water containing box (8), the cover opening mechanism is rotatably connected with one end of the rain guiding cover plate (16), and the rain guiding cover plate (16) is slidably covered on the clean water containing box (8) through the cover opening mechanism; the flip mechanism is arranged on the outer wall of one end of the clean water containing box (8) and is positioned below the rain guide cover plate (16), and the rain guide cover plate (16) can be arranged on the clean water containing box (8) in a turnover mode through the flip mechanism.

3. The heating ventilation air conditioner with self-cleaning function according to claim 2, characterized in that: the cover opening mechanism comprises a concave support plate (14), a lantern ring linkage block (15), a rotating shaft lever (20), a thread collar block (21), a linkage screw rod (22) and a second servo driving motor (23); the concave support plate (14) is arranged on one side of the top of the clean water containing box (8) and is positioned below the side of the rain guide cover plate (16), and the concave support plate (14) is of a concave structure and is arranged along the length direction of the rain guide cover plate (16); the linkage screw rod (22) is rotatably embedded in the concave cavity of the concave support plate (14), one end of the linkage screw rod (22) penetrates through the concave support plate (14) and is coaxially and fixedly connected with the output end of the second servo driving motor (23), and the second servo driving motor (23) is arranged on the outer wall of the clean water containing box (8) and is electrically connected with the controller (18); the threaded collar block (21) is embedded in the concave cavity of the concave support plate (14) in a matching way, and the linkage screw rod (22) penetrates through the threaded collar block (21) and is in threaded rotary connection with the threaded collar block (21); the lantern ring linkage block (15) is of a C-shaped structure and is sleeved outside the concave support plate (14), one end of the lantern ring linkage block (15) is fixedly connected with the threaded lantern ring block (21), one end of the rotating shaft lever (20) is rotatably embedded in the other end of the lantern ring linkage block (15), and the other end of the rotating shaft lever (20) is fixedly connected with one end side wall of the rain guide cover plate (16).

4. The heating ventilation air conditioner with self-cleaning function according to claim 2, characterized in that: the flip mechanism comprises an upward pushing cylinder (24), a linkage concave plate (25), a rotating rod (26) and a roller (27); the upper pushing cylinder (24) is arranged on the outer wall of the clean water containing box (8), the linkage concave plate (25) is of a U-shaped structure with one end being open, the piston end of the upper pushing cylinder (24) is fixedly connected with the sealing end of the linkage concave plate (25), the roller (27) is rotatably embedded at the opening end of the linkage concave plate (25) through the rotating rod (26), the linkage concave plate (25) and the roller (27) are arranged below the rain guiding cover plate (16) in a lifting mode, the roller (27) can be in rolling contact with the lower surface of the rain guiding cover plate (16), and the rain guiding cover plate (16) can be arranged at the top of the clean water containing box (8) in a turnover mode through the upper pushing cylinder (24).

5. The heating ventilation air conditioner with self-cleaning function according to claim 4, characterized in that: the side end of the linkage concave plate (25) is provided with a proximity switch (29) through a positioning ring block (28), and the proximity switch (29) can be in contact connection with the bottom surface of the rain cover plate (16); the proximity switch (29) is electrically connected with the push-up cylinder (24).

6. The heating ventilation air conditioner with self-cleaning function according to any one of claims 2-5, characterized in that: the top surface of rain guide cover plate (16) be middle low, the arcwall face structure that both sides are high, and the both sides edge department of rain guide cover plate (16) all is equipped with spacing extension board (19).

7. The heating ventilation air conditioner with self-cleaning function according to claim 1, characterized in that: the supercharging assembly comprises an electric control valve (30), a liquid compression tank (31), a singlechip controller (32), a one-way valve (33), a pressure sensor (34) and a pump (35); the water inlet end of the pump (35) is communicated with the clean water containing box (8) through a suction pipe (36), the water outlet end of the pump (35) is connected with the water inlet end of the liquid compression tank (31) through a one-way valve (33), and the water outlet end of the liquid compression tank (31) is communicated with the self-cleaning component through an electric control valve (30); the pressure sensor (34) is connected to the liquid compression tank (31), the output end of the pressure sensor (34) is connected with the input end of the single-chip microcomputer controller (32), the single-chip microcomputer controller (32) is arranged on the outer wall of the liquid compression tank (31), and the output end of the single-chip microcomputer controller (32) is electrically connected with the pump (35).

8. The heating ventilation air conditioner with self-cleaning function according to claim 7, characterized in that: the self-cleaning assembly comprises a self-cleaning tube (2), a shunt tube (4) and a lifting mechanism; one end of the self-cleaning pipe (2) is communicated with the liquid compression tank (31) through the electric control valve (30), the other end of the self-cleaning pipe (2) is communicated with the shunt pipe (4), and a plurality of injection pipes (5) are arranged on the shunt pipe (4) at intervals; the lifting mechanism is arranged in the heating ventilation air conditioner external unit (1), and the shunt pipe (4) is arranged in the heating ventilation air conditioner external unit (1) in a lifting manner through the lifting mechanism, so that the injection range of the plurality of injection pipes (5) can cover the whole condenser (12) and the net surface.

9. The heating ventilation air conditioner with self-cleaning function according to claim 8, characterized in that: the lifting mechanism comprises a threaded sleeve pipe (3), a transmission screw (6) and a first servo driving motor (7); one end of the transmission screw (6) is coaxially and fixedly connected with the output end of the first servo driving motor (7), and the other end of one end of the transmission screw (6) is rotatably arranged on the inner wall of the heating, ventilation and air conditioning external machine (1); one end of the threaded sleeve pipe (3) is communicated with the self-cleaning pipe (2) and the shunt pipe (4), and a screw hole is formed at the other end of the threaded sleeve pipe (3), so that the transmission screw (6) penetrates through the other end of the threaded sleeve pipe (3) through the screw hole and is screwed with the threaded sleeve pipe (3).