CN111998439B - Air conditioner with filter screen self-cleaning function and control method thereof - Google Patents
Air conditioner with filter screen self-cleaning function and control method thereof Download PDFInfo
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- CN111998439B CN111998439B CN202010874381.1A CN202010874381A CN111998439B CN 111998439 B CN111998439 B CN 111998439B CN 202010874381 A CN202010874381 A CN 202010874381A CN 111998439 B CN111998439 B CN 111998439B
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- Prior art keywords
- filter screen
- water
- air conditioner
- cleaning
- supply system
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Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 238
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000008400 supply water Substances 0.000 claims abstract description 6
- 239000000284 extract Substances 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 8
- 238000005406 washing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/228—Treatment of condensate, e.g. sterilising
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
- F24F2221/225—Cleaning ducts or apparatus using a liquid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The invention provides an air conditioner with a filter screen self-cleaning function and a control method thereof, wherein the air conditioner comprises a shell, and an air inlet communicated with the inside is formed on the shell; the filter screen assembly is arranged in the shell and comprises a filter screen bracket and a filter screen movably arranged on the filter screen bracket, wherein the filter screen can move between a first position opposite to the air inlet and a second position staggered from the air inlet; a self-cleaning assembly disposed within the housing, comprising: the water supply system is connected with a water receiving disc of the air conditioner and is provided with a spraying device, the spraying device is connected with the water supply system, the water supply system extracts condensed water in the water receiving disc to supply water for the spraying device, and the spraying device is used for cleaning the filter screen at least in the moving process of the filter screen. The invention realizes self-cleaning of the air conditioner filter screen, and the filter screen is cleaned by utilizing condensed water, so that manual water addition is avoided.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to an air conditioner with a filter screen self-cleaning function and a control method thereof.
Background
The air conditioner indoor unit generally sets up the filter screen in air intake department, filters the air that gets into in the air conditioner, and a lot of dust or other dirty filth are very easy to adhere to above the filter screen after long-term use, cause the filter screen to block up and cause ventilation unsmooth, influence the air supply volume of air conditioner, simultaneously, the filter screen is too dirty still to breed the bacterium easily, pollutes indoor air quality.
In order to keep the filter screen clean, the filter screen needs to be cleaned regularly, but the operation of disassembling and cleaning the filter screen is complex, and certain difficulties exist for a part of people (old people, women, and the like).
In order to solve the problem of filter screen cleaning, a cleaning brush is arranged in a part of air conditioners, the aim of sweeping dirt on the filter screen is achieved by controlling the relative movement of the cleaning brush and the filter screen, and the automatic cleaning of the filter screen is achieved to a certain extent. However, this approach requires the collection of cleaned dirt and also requires periodic cleaning of the dirt, or does not allow for fully automated cleaning of the filter screen.
Disclosure of Invention
In view of the above, the present invention provides an air conditioner with a self-cleaning function of a filter screen and a control method thereof, which are at least used for solving the technical problem of inconvenient cleaning of the filter screen of the air conditioner in the prior art, and in particular:
in a first aspect, the present invention provides an air conditioner having a self-cleaning function of a filter screen, comprising
The shell is provided with an air inlet communicated with the inside;
the filter screen assembly is arranged in the shell and comprises a filter screen bracket and a filter screen movably arranged on the filter screen bracket, wherein the filter screen can move between a first position opposite to the air inlet and a second position staggered from the air inlet;
a self-cleaning assembly disposed within the housing, comprising:
the water supply system is connected with a water receiving disc of the air conditioner,
the spraying device is connected with the water supply system, the water supply system extracts condensed water in the water pan to supply water for the spraying device,
the spraying device is used for cleaning the filter screen at least in the moving process of the filter screen.
Further alternatively, the spray device comprises a connecting pipe and a spray header assembly, two ends of the connecting pipe are respectively connected with the spray header assembly and the water supply system,
the spray header component comprises a mounting seat, a connecting end and a nozzle, wherein the mounting seat is used for being mounted on a bottom shell of an air conditioner,
the connecting end is fixed on the mounting seat, a flow channel is formed in the connecting end, one end of the flow channel is communicated with the connecting pipe, and the nozzle is connected to the other end of the flow channel.
Further alternatively, the water supply system includes:
the water tank is connected with the drainage end of the condensed water receiving disc;
the water pump is arranged between the water tank and the water receiving disc and is used for providing driving force to enable condensed water in the water receiving disc to flow into the water tank;
the filter is arranged on the water inlet end of the water tank or the water outlet end of the water receiving disc or a flow channel between the water tank and the water receiving disc, so that condensed water is filtered before entering the water tank;
and the booster pump is connected with the outlet of the water tank and is used for increasing the pressure of the water discharged from the water tank.
Further alternatively, a protective layer is arranged on the inner wall of the water tank, and the protective layer is made of antibacterial material and anti-mud material.
Further alternatively, the filter comprises a mounting base, a filter element and an end cap,
the mounting seat is used for fixedly mounting the filter;
a cavity is formed in the mounting seat, and a first port and a second port which are communicated with the cavity are also formed in the mounting seat;
the end cover is detachably connected to the mounting seat to close the cavity;
the filter element is arranged in the cavity.
Further alternatively, a rotary fastening structure is arranged on the end cover and the mounting seat, so that the end cover and the mounting seat are mounted in a rotary fit manner.
Further alternatively, the filter screen support includes:
the bottom bracket comprises a first area corresponding to the air inlet and a second area staggered with the air inlet, and at least the first area is provided with a grid structure for air flow;
the first cover plate is arranged on the bottom bracket corresponding to the first area, a gap is formed between the first cover plate and the bottom bracket, and a grid structure is formed on the first cover plate and can be used for air flow to pass through;
the second cover plate is arranged on the bottom bracket corresponding to the second area, and a gap is formed between the second cover plate and the bottom bracket;
the gaps among the first cover plate, the second cover plate and the bottom bracket form a moving track, and the filter screen can slide along the moving track so as to be positioned in the first area or the second area.
Further alternatively, the filter screen bracket is provided with a driving mechanism which is in driving connection with the filter screen, the driving mechanism comprises a driving motor and a driving gear, the driving motor is in driving connection with the driving gear,
the filter screen is provided with a rack structure, and the driving gear is meshed with the rack structure.
Further alternatively, the bottom bracket is configured as a bent structure, including a first bent portion and a second bent portion that are angled with respect to each other,
the first bending part forms the first area, the second bending part forms the second area,
the intersection of the first bending part and the second bending part forms a driving installation seat, and the driving mechanism is installed on the driving installation seat.
Further alternatively, the second cover plate has a plate-shaped structure, is connected to the bottom bracket to shield the second area, and is located at the upper side of the water pan, so that water after cleaning the filter screen can flow into the water pan along the second cover plate.
In a second aspect, the present invention provides a control method of the air conditioner with a self-cleaning function of a filter screen, which is characterized in that: the filter screen cleaning procedure comprises
The filter screen assembly acts, and the filter screen moves to a second position;
the water supply system starts to supply water, and water is sprayed to the filter screen through the spraying device;
the filter screen moves from the second position to the first position, and the water supply system keeps supplying water;
after the filter screen moves to the first position, the water supply system stops spraying water.
Further alternatively, after the water supply system stops spraying water, the air conditioner operates in a heating mode to dry the filter screen.
Further optionally, the water supply system is the water supply system, and before the cleaning action starts, the water supply system stores water and pumps the water in the water receiving disc into the water tank.
Further alternatively, the screen washing program is run once at preset time intervals T.
According to the invention, the filter screen assembly and the self-cleaning assembly are arranged to realize automatic cleaning of the filter screen, and the self-cleaning assembly utilizes condensed water to flush the filter screen, so that manual water addition is not needed, the non-contact cleaning is realized, and the automation of the cleaning of the filter screen is realized.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely examples of the present disclosure and other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 shows a schematic view of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic view showing an internal structure of an air conditioner according to an embodiment of the present invention;
FIG. 3 is an exploded view showing an internal structure of an air conditioner according to an embodiment of the present invention;
FIG. 4 shows a schematic view of an exploded construction of a filter according to an embodiment of the present invention;
FIG. 5 shows a schematic view of a screen assembly according to an embodiment of the present invention;
FIG. 6 shows a schematic view of an exploded view of a screen assembly according to an embodiment of the present invention;
FIG. 7 shows a schematic diagram of a filter screen structure according to an embodiment of the present invention;
FIG. 8 is a schematic diagram showing an assembled state of a filter screen and a driving mechanism according to an embodiment of the present invention;
FIG. 9 illustrates a schematic cross-sectional view of a screen assembly according to an embodiment of the present invention;
FIG. 10 shows an enlarged view at A in FIG. 9;
FIG. 11 illustrates a schematic cross-sectional view of a screen assembly according to an embodiment of the present invention;
FIG. 12 shows an enlarged view at B in FIG. 11;
FIG. 13 shows a schematic diagram of the structure of a water tank according to an embodiment of the present invention;
fig. 14 is a schematic view showing a partial structure of the inside of an air conditioner according to an embodiment of the present invention;
FIG. 15 is a schematic view showing a state in which a connection pipe is mounted on a bottom chassis according to an embodiment of the present invention;
FIG. 16 shows a schematic view of a spray device configuration in accordance with an embodiment of the present invention;
FIG. 17 illustrates an exploded view of a showerhead assembly according to an embodiment of the present invention;
fig. 18 shows a schematic diagram of a screen cleaning control flow according to an embodiment of the invention.
In the figure:
10. a housing; 11. an air inlet; 12. an air outlet; 20. a filter screen assembly; 211. a bottom bracket; 2111. a first bending part; 2112. a second bending part; 212. a first cover plate; 213. a second cover plate; 214. a first limit part; 215. a second limit part; 22. a filter screen; 221. a rack structure; 222. a first tooth structure; 223. a second tooth structure; 224. a first blocking part; 225. a second blocking part; 231. a drive gear; 232. a driving motor; 233. a drive shaft; 31. a showerhead assembly; 311. a connecting pipe; 312. a mounting base; 313. a connection end; 314. a nozzle; 32. a water tank; 321. a water tank inlet; 322. a water tank outlet; 323. an overflow pipe; 33. a booster pump; 34. a filter; 341. a base; 3411. a first port; 3412. a second port; 342. a connection structure; 343. an end cap; 344. a filter element; 35. a water pump; 40. and a bottom shell.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
The invention provides an air conditioner with a filter screen self-cleaning function, as shown in fig. 1, 2 and 3, which comprises a shell 10, wherein an air inlet 11 and an air outlet 12 which are communicated with the inside are formed on the shell 10, so that an air flow channel is formed in the shell 10; a filter screen assembly 20 disposed inside the housing 10, including a filter screen support and a filter screen 22 movably disposed on the filter screen support; the filter screen support includes: the bottom bracket 211, the bottom bracket 211 comprises a first position corresponding to the air inlet 11 and a second position staggered with the air inlet 11, and at least the first position is provided with a grid structure for air flow to pass through; the first cover plate 212 is overlapped with the bottom bracket 211 at a first position with a gap formed between the first cover plate 212 and the bottom bracket 211 and is connected with the bottom bracket 211, and a grid structure is formed on the first cover plate 212 for air flow to pass through; a second cover plate 213 overlapping the bottom bracket 211 with a gap therebetween at a second position and connected to the bottom bracket 211; gaps among the first cover plate 212, the second cover plate 213 and the bottom bracket 211 form a moving track, and the filter screen 22 can slide along the moving track to enable the filter screen 22 to be positioned at a first position or a second position; the bottom bracket 211 is provided with a driving mechanism, and the driving mechanism is in driving connection with the filter screen 22 and is used for driving the filter screen 22 to move.
The self-cleaning assembly is arranged in the shell 10 and comprises a water supply system and a spraying device, wherein the water supply system is connected with a water receiving disc of the air conditioner, the spraying device is connected with the water supply system, the water supply system pumps water in the water receiving disc to the spraying device, and the filtering net is cleaned by spraying water through the spraying device.
As shown in fig. 15, 16 and 17, the spray device includes a connection pipe 311 and a spray header assembly 31, the connection pipe 311 is fixed to a bottom case 40 of the air conditioner by a snap-fit structure or the like, and preferably, a soft material (e.g., a damping block, a rubber pad, etc.) is provided at a fixed position to prevent noise generated from the water supply process and vibration when spraying water. The two ends of the connecting pipe 311 are respectively connected with the spray header assembly 31 and the water supply system, the spray header assembly 31 comprises a mounting seat 312, a connecting end 313 and a nozzle 314, the mounting seat 312 is used for being mounted on the bottom shell 40 of the air conditioner, preferably, mounting holes are formed in the mounting seat 312, and the air conditioner can be fixed on the bottom shell 40 through connecting pieces such as screws. The mounting seat 312 is provided with a fixing structure, the connecting end 313 is fixed on the mounting seat 312 through the fixing structure, preferably, the fixing structure is a buckle, the connecting end 313 is clamped in the buckle, the mounting seat 312 is convenient to mount and can be detached, and further, the mounting seat 312 is also provided with a clamping structure capable of fixing the connecting pipe 311, and part of the connecting pipe can be fixed on the mounting seat 312.
The connection end 313 has a flow passage, preferably a circular tube structure, formed therein, one end of which communicates with the connection pipe 311, and the nozzle 314 is connected to the other end of the flow passage, and the connection pipe 311 communicates with the nozzle 314 through the connection end 313. The nozzle 314 is preferably a wide-angle nozzle 314, is provided with a narrow-slit water outlet, and sprays water mist with a coverage area of more than or equal to 45 degrees and less than or equal to 150 degrees, and increases with working pressure by less than 20 percent.
According to the size of the filter screen and the distance between the filter screen and the nozzle 314, the number and the distance between the spray header assemblies 31 are determined, and in this embodiment, the spray header assemblies 31 are provided with two to ensure that the width of the sprayed water mist can cover the width of the whole filter screen.
As shown in fig. 3, the water supply system includes a water tank 32 connected to the drain end of the condensate pan for collecting condensate to provide self-cleaning water to the filter screen; the water pump 35 is arranged between the water tank 32 and the water receiving disc and is used for providing driving force to enable condensed water in the water receiving disc to flow into the water tank 32, a water inlet of the water pump 35 is connected with the water receiving disc through a pipeline, a water outlet of the water pump 35 is communicated with the water tank inlet 321 through a pipeline, and the condensed water pump 35 which can be accepted by the water receiving disc is led into the water tank 32 to be collected through the water pump 35. Preferably, the water tank 32 further includes an overflow port, as shown in fig. 13, where the overflow port is connected with an overflow pipe 323, the overflow pipe 323 is communicated with a water receiving disc, when the water tank 32 is full of water, the condensed water can flow to the water receiving disc through the overflow port, so as to prevent the water in the water tank 32 from flowing to other places or to cause excessive water pressure in the water tank 32.
The filter 34 is arranged at the water inlet end of the water tank 32 or the water outlet end of the water pan or the flow passage between the water tank 32 and the water pan, and is used for filtering condensed water entering the water tank 32, preferably, the filter 34 is respectively communicated with the water outlet of the water pump 35 and the inlet of the water tank 32 through pipelines, water discharged by the water pump 35 flows through the filter 34 and then enters the water tank 32, and the condensed water entering the water tank 32 is filtered, so that bacteria, dust and the like are prevented from entering the water tank 32.
Preferably, a booster pump 33 is further included, the booster pump 33 being connected to the tank outlet 322 for increasing the pressure of the water discharged from the tank 32. Preferably, the booster pump 33 is mounted on the bottom case 40, the greater the current and voltage of the booster pump 33, the greater the working pressure thereof, and the better the cleaning effect, but the greater the water consumption, noise and vibration, and the greater the working pressure, the potential safety hazard is present, and thus, the optimal working pressure range is 0-2MPa.
Preferably, a protective layer is provided on the inner wall of the water tank 32, and the protective layer is made of a bacteriostatic material and a mud-resistant material, so that the condensed water can be stored for a long time, and the colony propagation and the formation of biological slime can be effectively inhibited in the interior of the protective layer. Further, an ultraviolet lamp is further arranged in the water tank 32 and is used for sterilizing water in the water tank 32 so as to achieve the purpose of secondarily sterilizing the collected condensed water, so that sterilization is more thorough, the ultraviolet lamp is preferably a pulse ultraviolet xenon lamp, the ultraviolet lamp is arranged along the direction from the water inlet to the water outlet of the water tank, and the overflowing surface of the ultraviolet lamp is an arc-shaped surface.
As shown in fig. 4, the filter 34 preferably includes a base 341, a filter element 344, and an end cover 343, and the base 341 includes a connection structure 342 for fixedly mounting the filter 34, preferably, the connection structure 342 includes a mounting hole, and may be fixedly mounted by a connection member such as a screw, or the connection structure 342 may be a structure such as a buckle, so that the fixed mounting of the filter 34 can be achieved.
The base 341 and the connection structure 342 form an integral structure, for example, the base 341 and the connection structure 342 may be formed into an integral structure by injection molding, bonding, welding, or the like, or may be connected into an integral structure by a detachable connection structure such as a screw, a buckle, or the like.
A cavity is formed inside the base 341, the base 341 is configured to be open at one end and closed at the other end, a first port 3411 and a second port 3412 which are communicated with the cavity are arranged on the base 341, preferably, the first port 3411 is arranged at the closed end of the base 341, the second port 3412 is arranged on the side wall of the base 341, and the first port 3411 and the second port 3412 are respectively used for connecting a water inlet pipeline and a water outlet pipeline; the end cover 343 is disposed at the open end of the base 341, the end cover 343 is detachably connected to the base 341 to close the cavity, and the second port 3412 communicates with the cavity, and the first port 3411, the cavity and the second port 3412 form a flow channel for water supply.
Preferably, the end cover 343 and the base 341 are detachably connected through a turnbuckle structure, a rotary clamping groove structure is arranged on the inner peripheral wall of the opening end of the base 341 to realize the rotary fit of the end cover and the mounting seat 312, a clamping block structure is arranged on the outer wall of the end cover 343, and the end cover 343 partially stretches into the opening end of the base 341 and is clamped with the clamping block through rotation to complete the connection of the end cover 343 and the base 341. Preferably, the mating surface of draw-in groove structure and fixture block structure is constructed as the inclined plane to can make at rotatory in-process, fixture block and draw-in groove can be chucking gradually, fixture block and draw-in groove compress tightly gradually promptly, not only can realize the connection of end cover 343 and base 341, can also make end cover 343 compress tightly the tip at base 341, be favorable to realizing the sealing of both contact positions, avoid leaking.
A filter cartridge 344 is disposed in the cavity to filter water flowing through the cavity to remove bacteria, dust, etc. from the condensed water. Preferably, the filter element 344 comprises a water inlet end and a filter layer, the water inlet end is communicated with the first port 3411, condensed water flows into the water inlet end of the filter element 344 from the first port 3411, enters the filter element 344, flows into a cavity in the base 341 after being filtered by the filter layer, and flows out through the second port 3412 on the base 341.
Preferably, as shown in fig. 5 and 6, the first cover plate 212 on the filter screen support and the grid structure on the bottom support 211 are oppositely arranged to form an air inlet channel corresponding to the air inlet 11, and air flows through the air inlet 11, the first cover plate 212 and the bottom support 211 and can enter the housing 10, so that when the filter screen 22 is located between the first cover plate 212 and the bottom support 211, i.e. in the first position, the air flows through the filter screen 22, and the air flows are filtered through the filter screen 22.
The second cover plate 213 is of a plate-shaped structure, is connected to the bottom bracket 211 to block the second position and block the circulation channel of the second position, the cleaning assembly sprays cleaning liquid towards the second cover plate 213, and the cleaning liquid is blocked by the second cover plate 213 after the filter screen is washed, so that the cleaning liquid is prevented from being sprayed onto other components. The lower side of the second cover plate 213 is provided with a water receiving tray, the cleaning liquid on the second cover plate 213 flows into the water receiving tray along the inner wall thereof, and water in the water receiving tray can be further discharged to the outside of the housing 10.
The driving mechanism comprises a driving motor 232 and a driving gear 231, the driving motor 232 is in driving connection with the driving gear 231 after speed regulation through a gear box, a rack structure 221 is arranged on the filter screen 22, the rack structure 221 is arranged at the edge of the filter screen 22 and extends along the moving direction of the filter screen 22, the driving gear 231 is meshed with the rack structure 221, the filter screen 22 is driven through the gear-rack structure 221, and moving precision and reliability can be guaranteed.
Preferably, two driving gears 231 are provided, and the two driving gears 231 are connected through a driving shaft 233 such that the two driving gears 231 are synchronously rotated. Correspondingly, two rack structures 221 are arranged on two parallel side edges of the filter screen 22, the two rack structures 221 are respectively meshed with one driving gear 231, and the two rack structures 221 are matched, so that the two sides of the filter screen 22 are simultaneously driven by the driving force, and the stress of the filter screen 22 is more uniform and the movement is smoother.
The drive mechanism is preferably disposed between the first and second positions such that the rack structure 221 engages the drive gear 231 when the filter screen 22 is in both the first and second positions. As shown in fig. 7 and 8, the rack structure 221 is provided with a first tooth structure 222 and a second tooth structure 223 extending to the outside of the filter screen 22 structure at both ends thereof, respectively, and teeth on the rack structure 221 extend to the first tooth structure 222 and the second tooth structure 223, so that the first tooth structure 222 and the second tooth structure 223 can be engaged with the driving gear 231. When the filter screen 22 is located at the first position, the first convex tooth structure 222 is meshed with the driving gear 231, and when the filter screen 22 is located at the second position, the second convex tooth structure 223 is meshed with the driving gear 231, so that teeth meshed with the driving gear 231 are always arranged on the filter screen 22, preferably, at least three teeth on the first convex tooth structure 222 and the second convex tooth structure 223 can be meshed with the driving gear 231, the movement range of the filter screen is larger, and the driving gear 231 is prevented from being separated from the rack, so that the driving effect is lost.
Preferably, the bottom bracket 211 is configured as a bending structure, including a first bending portion 2111 and a second bending portion 2112 that are angled with each other, so that the bottom bracket 211 is suitable for a wall-mounted air conditioner, for example, the first bending portion 2111 and the second bending portion 2112 are perpendicular to each other, and the bottom bracket 211 of the bending structure enables the filter screen assembly 20 to shield the upper side (the position opposite to the air inlet 11) and the side of the heat exchanger, so that the bottom bracket is suitable for a wall-mounted air conditioner, and the occupied space can be reduced. The first bending portion 2111 forms a first position, the second bending portion 2112 forms a second position, and the intersection of the first bending portion 2111 and the second bending portion 2112 forms a drive mount 312, and the drive mount is mounted on the drive mount 312. The drive mount 312 includes an arc-shaped mounting groove formed at the junction of the first bending portion 2111 and the second bending portion 2112, and a drive shaft supporting structure, the arc of the arc-shaped mounting groove is matched with the drive gear 231, and the drive shaft 233 is rotatably mounted on the drive shaft supporting structure, so that the drive gear 231 is located in the arc-shaped mounting groove, and a gap is formed between the drive gear 231 and the arc-shaped mounting groove, thereby ensuring normal rotation of passengers. The driving motor 232, the gear box, etc. may be disposed at an end of the arc-shaped mounting groove, and mounted at an outer side of the arc-shaped mounting groove. The provision of the arcuate mounting slots provides mounting space for the drive gear 231 and also allows the drive gear 231 to better mate with the filter screen 22.
As shown in fig. 9, 10, 11 and 12, preferably, a first limiting portion 214 is provided on the first cover plate 212 and/or the bottom bracket 211, when the filter screen 22 is located at the first position, the first cover plate abuts against the first limiting portion 214, and the first limiting portion 214 limits the filter screen 22. In the present embodiment, the first limiting portion 214 is formed on the first cover 212 and located at an edge position of the first cover 212, and when the first cover 212 is connected to the bottom bracket 211, the first limiting portion 214 is located at a side of the moving track between the first cover 212 and the bottom bracket 211.
The second cover plate 213 and/or the bottom bracket 211 are/is provided with a second limiting part 215, when the filter screen 22 is located at the second position, the second cover plate is abutted against the second limiting part 215, and the second limiting part 215 is used for limiting the filter screen 22. In the present embodiment, the second limiting portion 215 is formed on the bottom bracket 211, and the first limiting portion 214 is located at the side of the moving rail between the second cover 213 and the bottom bracket 211 when the first cover 212 is connected to the bottom bracket 211.
Correspondingly, a first blocking part 224 and a second blocking part 225 are respectively arranged at positions, close to two ends of the rack, on the filter, the first blocking part 224 and the second blocking part 225 extend towards the outer side of the filter screen 22, the first blocking part 224 is used for abutting against the first limiting part 214, and the second blocking part 225 is used for abutting against the second limiting part 215. Specifically, the first lobe structure 222 extends to an area beyond the first stop 224, and the second lobe structure 223 extends to an area beyond the second stop 225, so that limiting does not affect the first lobe structure 222 and the second lobe structure 223, and the overall size of the filter screen assembly can be reduced in the moving direction of the filter screen.
Preferably, the number of the filter screens 22 is plural, in this embodiment, two filter screens 22 are disposed side by side, each filter screen 22 is correspondingly provided with a driving mechanism, and the two filter screens 22 are individually driven by the driving mechanism, so that each filter screen 22 can have enough driving force to drive in the moving process.
The invention also provides a control method of the air conditioner with the self-cleaning function of the filter screen, as shown in fig. 18, the filter screen cleaning program comprises the following steps:
the filter screen assembly acts, and the filter screen moves to a second position;
the water supply system starts to supply water, and water is sprayed to the filter screen through the spraying device;
the filter screen moves from the second position to the first position, and the water supply system keeps supplying water;
after the filter screen moves to the first position, the water supply system stops spraying water.
Preferably, after the water supply system stops spraying water, the air conditioner operates a heating mode to dry the filter screen.
In particular, a manual mode and an automatic mode may be included, wherein,
the manual mode includes:
after the air conditioner is started, the evaporator continuously generates condensed water, the water suction pump starts to operate, and the condensed water is filtered by the filter from the water receiving disc and then is conveyed into the water tank 32 by the water suction pump. And when the running time T1 of the water pump is longer than the set time T2, stopping the water pump. During the pumping process, if the water tank 32 is full of condensed water, the excessive condensed water is discharged from an overflow port of the water tank 32 to the water receiving disc.
At this time, the user sets a manual cleaning filter screen, and the filter screen driving mechanism drives the filter screen from the first position to the second position. Then, the booster pump 33 pumps water from the water tank 32 and sends the water to the nozzle 314 to start washing the filter screen. Meanwhile, the filter screen driving mechanism drives the filter screen to reversely move to return to the first position, the spray head is in a water spraying state in the movement process of the filter screen, and when the filter screen moves to the first position, the spray head finishes cleaning the whole filter screen. Then, the booster pump 33 stops working, and the spray head stops spraying water; the air conditioner is started to heat so as to dry the filter screen, thereby completing the whole filter screen washing process. In the process, the spray head sprays and washes the filter screen, and the dust of the filter screen is washed away by water and discharged to the outside of the air conditioner through the water receiving disc.
The automatic mode includes:
when the user does not start the manual cleaning mode after the air conditioner operates for a period of time, the air conditioner judges whether automatic water cleaning is needed according to the length of time from the last cleaning time, and the difference between the automatic cleaning mode and the manual cleaning mode is that the user can set the automatic cleaning period T of the air conditioner by himself. When the time T3 from the last cleaning of the air conditioner is longer than the cleaning period T set by the user, the air conditioner is in an automatic cleaning mode, and after the automatic cleaning mode is confirmed by the user (the air conditioner is provided with a voice or special light and is displayed by a remote controller of the air conditioner), the filter screen is opened for washing. If the user is not confirmed by a plurality of reminders or the user determines that the cleaning is not required, the booster pump 33 is turned on and the condensed water in the water tank 32 is discharged.
Preferably, the method further comprises a water storage mode: after the air conditioner is started, when the user does not start the manual cleaning mode and the time T3 from the last cleaning is smaller than the set cleaning period T, namely, the time between the two cleaning program operations, the air conditioner enters a water storage mode, and condensed water filtered by the filter enters the water tank 32. When the water storage time T5 is longer than the set time T6, the condensed water in the water tank 32 is discharged through the booster pump 33. During this time, the water in the tank 32 is ready for washing the filter screen before the water in the tank 32 is discharged.
The invention realizes the automatic cleaning of the air conditioner filter screen, and the water supply system utilizes the condensed water, does not need to manually add water, fully recycles the condensed water, also avoids the trouble of manual operation, and realizes the automatic cleaning of the filter screen. And the non-contact water washing mode is adopted, and a filter is arranged on the water supply system to sterilize the condensed water, so that secondary pollution in the cleaning process is avoided.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that this disclosure is not limited to the particular arrangements, instrumentalities and methods of implementation described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (12)
1. An air conditioner with filter screen self-cleaning function, its characterized in that: the self-cleaning device comprises a shell, a filter screen assembly and a self-cleaning assembly, wherein an air inlet communicated with the inside is formed in the shell; the filter screen component is arranged in the shell and comprises a filter screen bracket and a filter screen movably arranged on the filter screen bracket;
the self-cleaning assembly is disposed within the housing; the self-cleaning assembly comprises a water supply system and a spraying device, wherein the water supply system is arranged on one side of the length direction of the filter screen bracket and is connected with a water receiving disc of the air conditioner; the spraying device is connected with the water supply system, and the water supply system extracts condensed water in the water receiving disc to supply water for the spraying device; the spraying device is used for cleaning the filter screen at least in the moving process of the filter screen;
the filter screen bracket comprises a bottom bracket, a first cover plate and a second cover plate, wherein a driving mechanism is arranged on the bottom bracket and is in driving connection with the filter screen and used for driving the filter screen to move; the bottom bracket is constructed into a bending structure and comprises a first bending part and a second bending part, the first bending part is arranged corresponding to the air inlet, and the second bending part is staggered with the air inlet; the first cover plate is arranged on the first bending part, and the first cover plate and the first bending part are both formed with grid structures; the second cover plate is arranged on the second bending part, is of a plate-shaped structure and is positioned above the water receiving disc;
a gap is formed between the first cover plate and the first bending part, another gap is formed between the second cover plate and the second bending part, and the two gaps form a moving track; the filter screen can move along the moving track between a first position opposite to the air inlet and a second position staggered from the air inlet.
2. The air conditioner with a self-cleaning function of a filter screen according to claim 1, wherein: the spraying device comprises a connecting pipe and a spraying head assembly, and two ends of the connecting pipe are respectively connected with the spraying head assembly and the water supply system;
the spray header assembly comprises a mounting seat, a connecting end and a nozzle, wherein the mounting seat is used for being mounted on a bottom shell of the air conditioner; the connecting end is fixed on the mounting seat, and a flow passage is formed in the connecting end; one end of the flow channel is communicated with the connecting pipe, and the other end of the flow channel is communicated with the nozzle.
3. The air conditioner with a self-cleaning function of a filter screen according to claim 2, wherein: the water supply system includes:
the water tank is connected with the drainage end of the condensed water receiving disc;
a water pump arranged between the water tank and the water receiving disc and used for providing driving force to enable condensed water in the water receiving disc to flow into the water tank;
the filter is arranged on the water inlet end of the water tank or the water outlet end of the water receiving disc or a flow channel between the water tank and the water receiving disc, so that condensed water is filtered before entering the water tank;
and the booster pump is connected with the outlet of the water tank and is used for increasing the pressure of the water discharged from the water tank.
4. An air conditioner with a self-cleaning function of a filter screen according to claim 3, wherein: the inner wall of the water tank is provided with a protective layer which is made of antibacterial material and anti-mud material.
5. An air conditioner with a self-cleaning function of a filter screen according to claim 3, wherein: the filter comprises a mounting seat, a filter element and an end cover;
the mounting seat is used for fixedly mounting the filter; a cavity is formed in the mounting seat, and a first port and a second port which are communicated with the cavity are also formed in the mounting seat;
the end cover is detachably connected to the mounting seat to close the cavity;
the filter element is arranged in the cavity.
6. The air conditioner with a self-cleaning function of a filter screen according to claim 5, wherein: the end cover and the mounting seat are provided with rotary buckle structures, so that the end cover and the mounting seat are mounted in a rotary fit manner.
7. The air conditioner with a self-cleaning function of a filter screen according to any one of claims 1 to 6, wherein: the driving mechanism comprises a driving motor and a driving gear, and the driving motor is in driving connection with the driving gear;
the filter screen is provided with a rack structure, and the driving gear is meshed with the rack structure.
8. The air conditioner with a self-cleaning function of a filter screen according to claim 7, wherein: the intersection of the first bending part and the second bending part forms a driving installation seat, and the driving mechanism is installed on the driving installation seat.
9. A control method of an air conditioner having a self-cleaning function of a filter screen as claimed in any one of claims 7 to 8, characterized by: the filter screen cleaning procedure includes:
the filter screen assembly acts, and the filter screen moves to a second position;
the water supply system starts to supply water, and water is sprayed to the filter screen through the spraying device;
the filter screen moves from the second position to the first position, and the water supply system keeps supplying water;
after the filter screen moves to the first position, the water supply system stops spraying water.
10. The control method according to claim 9, characterized in that: after the water supply system stops spraying water, the air conditioner operates a heating mode to dry the filter screen.
11. The control method according to claim 9, characterized in that: the water supply system is the water supply system as claimed in claim 3, wherein the water supply system stores water before the cleaning action is started, and the water in the water receiving disc is pumped into a water tank of the water supply system.
12. The control method according to any one of claims 9 to 11, characterized in that: the filter screen cleaning program is operated once at preset time intervals.
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| CN202010874381.1A CN111998439B (en) | 2020-08-26 | 2020-08-26 | Air conditioner with filter screen self-cleaning function and control method thereof |
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| CN202010874381.1A CN111998439B (en) | 2020-08-26 | 2020-08-26 | Air conditioner with filter screen self-cleaning function and control method thereof |
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| CN112524737B (en) * | 2020-12-14 | 2022-05-27 | 江苏锐天智能科技股份有限公司 | Air purification device with rotation type linkage flow control mechanism |
| CN112628928B (en) * | 2020-12-14 | 2022-04-22 | 江苏锐天智能科技股份有限公司 | Ultraviolet air purification equipment with rotary reverse cleaning mechanism |
| CN112682931A (en) * | 2020-12-24 | 2021-04-20 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN113357815B (en) * | 2021-06-28 | 2022-09-02 | 湖南铁路联创技术发展有限公司 | Waterproof dust collector is used in air conditioner maintenance |
| CN115614842B (en) * | 2022-09-22 | 2024-09-06 | 珠海格力电器股份有限公司 | Air conditioner and cleaning method of filter screen of air conditioner |
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