CN111503746B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN111503746B CN111503746B CN202010300864.0A CN202010300864A CN111503746B CN 111503746 B CN111503746 B CN 111503746B CN 202010300864 A CN202010300864 A CN 202010300864A CN 111503746 B CN111503746 B CN 111503746B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000009423 ventilation Methods 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 26
- 231100000719 pollutant Toxicity 0.000 claims abstract description 26
- 239000000356 contaminant Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 description 14
- 241000894006 Bacteria Species 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 6
- 241000700605 Viruses Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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Classifications
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- 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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, and particularly provides an air conditioner and a control method thereof. The invention aims to solve the problems that the filtering area of the existing filter screen can not be adjusted at any time and the like. For this purpose, the air conditioner of the invention is provided with a filtering device at the air return inlet and/or the air outlet, the filtering device comprises a mounting component and a scroll pair, the scroll pair comprises a first scroll and a second scroll, the first scroll and the second scroll are respectively positioned at two ends of the mounting component along the direction vertical to the flowing direction of the air to be filtered, and the mounting component is provided with a ventilation structure; the control method of the air conditioner includes detecting a concentration of a contaminant in air of an indoor space, and adjusting an area of a filter net laid at a position of an installation member corresponding to a ventilation structure according to the concentration of the contaminant. The invention can adjust the area of the filter screen in real time according to the concentration of pollutants in the air, thereby better achieving the purpose of adjusting the air quality of the indoor space.
Description
Technical Field
The invention relates to the technical field of air conditioners, and particularly provides an air conditioner and a control method thereof.
Background
With the improvement of living standard of people, the use of the air conditioner is more and more common. In addition to the basic function of adjusting the temperature of the indoor space by cooling, heating, etc., it is required to add other functions of improving the quality of air, such as removing dust, bacteria, etc., from the air introduced into the indoor space through the air conditioner, during the operation of the air conditioner. The existing sterilization and dust removal technologies mainly comprise an electronic adsorption technology and a physical adsorption technology, wherein the electronic adsorption technology adopts a high-pressure excitation principle, ozone can be generated, an ignition phenomenon can occur, and the like, and certain potential safety hazards exist, so that the physical adsorption technology is applied more at present. The physical adsorption technology mainly utilizes a mode of additionally arranging a filter screen to adsorb dust, bacteria and the like in air flowing through the physical adsorption technology.
However, the current filter screen is usually fixed in advance inside the casing of the air conditioner and cannot be adjusted at any time, for example, if the air quality in the indoor space is changed from light pollution to heavy pollution, if the filter screen cannot be changed or the area of the filter screen cannot be adjusted in real time, the filtering efficiency of the filter screen may be improved, and the user experience may be poor.
Accordingly, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems that the filtering area of the existing filtering net cannot be adjusted at any time, the present invention provides, in one aspect, a control method for an air conditioner, the air conditioner including an indoor air conditioner unit including a casing having an air return opening and an air outlet, the air return opening and/or the air outlet being provided with a filtering device, the filtering device including a mounting member and a pair of reels, the pair of reels including a first reel and a second reel, the first reel and the second reel being respectively located at two ends of the mounting member in a direction perpendicular to a flow direction of air to be filtered, the mounting member being provided with a ventilation structure allowing air to pass through, the filtering device further including a filtering net and a guiding mechanism, the guiding mechanism being disposed between the first reel and the second reel so as to guide the filtering net from the first reel to the second reel, the first end of the filtering net being wound around the first reel, the other end of the filtering net being wound around the guiding mechanism and being connected to the second reel, the second reel being provided with a driving member, the driving member being rotated so as to wind the filtering net around the second reel so as to be wound around the filtering net, and be wound around the second reel, and being disposed on the mounting member; the control method comprises the following steps: detecting a concentration of a contaminant in air of an indoor space; and adjusting the area of the filter screen paved at the position of the mounting component corresponding to the ventilation structure according to the pollutant concentration.
In a preferred embodiment of the above control method, the guide mechanism includes a plurality of fixed members and a plurality of moving members provided on the first and second sides of the filter net, and the adjusting the number of layers of the filter net laid at the position of the mounting member corresponding to the ventilation structure by moving a different number of the moving members relative to the fixed members includes: adjusting the number of the moving members moving relative to the fixing member according to the contaminant concentration, thereby adjusting the area of the filter screen by adjusting the number of layers of the filter screen laid at a position of the mounting member corresponding to the ventilation structure.
In a preferred embodiment of the above control method, the mounting member is formed with a rail at a position corresponding to the moving member, and the moving member is movable along the rail so that one or more layers of the filter net can be laid at a position of the mounting member corresponding to the ventilation structure in a state where the moving member is moved to a target position.
In a preferred embodiment of the above control method, the adjusting the number of the moving members moving relative to the fixed member according to the pollutant concentration includes: and under the condition that the pollutant concentration is a first concentration threshold value, moving a first preset number of the moving members to the direction far away from the fixed member so as to adjust the area of the filter screen.
In a preferred embodiment of the above control method, after the step of moving the first preset number of the moving members in a direction away from the fixed member in a case where the contaminant concentration is the first concentration threshold, the control method further includes: keeping the current area of the filter screen for a set time; re-detecting the pollutant concentration, and under the condition that the pollutant concentration is reduced to a second concentration threshold value, moving a second preset number of the moving members to the direction close to the fixed member so as to change the area of the filter screen; the second preset quantity is smaller than or equal to the first preset quantity, and the second concentration threshold value is smaller than the first concentration threshold value.
In a preferred technical solution of the above control method, the moving member includes a first portion and a second portion that are fixedly connected or integrally formed, the first portion is a structure that matches the rail, the second portion is driven to move by the movement of the first portion along the rail, and the second portion is in butt joint with the filter screen, so that the filter screen is driven by the movement of the second portion to complete the laying of the filter screen at a position of the mounting member corresponding to the ventilation structure.
In a preferred technical solution of the above control method, the rail is a slide, and the second portion is a pulley.
In a preferable technical solution of the above control method, the filter device further includes a limiting structure, and the limiting structure is disposed at a position of the mounting member away from the fixed member, so that in a case where the moving member moves to a target position, the moving member can be continuously located at the target position by the limiting structure.
In the preferable technical scheme of the control method, the filter screen is melt-blown cloth; or the filter screen comprises a base body, and at least one part of the base body is provided with melt-blown cloth.
As will be understood by those skilled in the art, in the novel technical solution, the air conditioner comprises an air conditioner indoor unit, the air conditioner indoor unit comprises a casing, the casing is provided with a return air inlet and an air outlet, and a filtering device is arranged at the return air inlet and/or the air outlet so as to be capable of filtering bacteria, dust and the like in air flowing through the return air inlet and/or the air outlet. The filter device comprises a mounting component and a reel pair, wherein the reel pair comprises a first reel and a second reel, the first reel and the second reel are respectively positioned at two ends of the mounting component in a direction perpendicular to the flowing direction of air to be filtered, and a ventilation structure is arranged on the mounting component, so that the air flowing through the filter component can pass through the ventilation structure. The filter device also comprises a filter screen and a guide mechanism, wherein the guide mechanism is arranged between the first reel and the second reel, one end of the filter screen is wound on the first reel, the other end of the filter screen bypasses the guide mechanism and is connected with the second reel, and the second reel is provided with a driving member, so that the second reel is rotated by the driving member, the filter screen can be laid at the position of the mounting member corresponding to the ventilation structure, and dust, bacteria and the like in the air flowing through the ventilation structure can be effectively removed. When the filter screen needs to be cleaned and replaced, the second reel is rotated, if the filter screen is driven by a driving motor or manually, the part of the filter screen needing to be replaced can be wound on the second reel, and therefore a new filter screen can be laid at the position of the mounting component corresponding to the ventilation structure, and automatic replacement of the filter screen can be achieved. Preferably, the filter screen is a melt-blown fabric, or the filter screen comprises a substrate, at least one part of the substrate is provided with the melt-blown fabric, so that bacteria, viruses, dust and the like in the air flowing through the filter screen can be better adsorbed, and a person skilled in the art can flexibly select the setting mode of the filter screen according to a specific application scene, as long as the purpose of removing the bacteria, the dust or the like in the air flowing through the filter screen can be achieved.
The control method of the air conditioner comprises the steps of detecting the concentration of pollutants in the air of an indoor space, such as the concentration of PM2.5, and adjusting the area of the filter screen laid at the position of the mounting component corresponding to the ventilation structure according to the concentration of the pollutants, so that the area of the filter screen can be adjusted in real time according to the user requirement and the actual quality of the air of the indoor space, and when the concentration of the pollutants in the air is higher, the area of the filter screen is increased, so that the filtering efficiency can be improved. For example, at least a part or all of the filter screen may be adjusted to be wave-shaped or fold-shaped or other possible structures, and those skilled in the art may flexibly select the structure of the filter screen according to the specific application scenario as long as the area of the filter screen can be adjusted.
In a preferred embodiment of the present invention, the guide mechanism includes a plurality of fixing members and a plurality of moving members provided on the first and second sides of the filter net, and the number of layers of the filter net laid at the position of the mounting member corresponding to the ventilation structure can be adjusted by moving the different number of moving members relative to the fixing members, thereby adjusting the area of the filter net. Specifically, "according to pollutant concentration, the area of the filter screen of the position that the installation component corresponds to the ventilation structure is laid in the adjustment" specifically includes, according to pollutant concentration, the adjustment is for the quantity of the motion component of fixed component motion, just so can adjust the number of piles of laying the filter screen of the position that the installation component corresponds to the ventilation structure, thereby just also can lay the area of the filter screen of the position that the installation component corresponds to the ventilation structure according to specific air quality adjustment, and simultaneously, because the number of piles of filter screen is many, can cause certain amount of wind loss, when pollutant concentration in the air is lower, can reduce the area of filter screen in real time through reducing the number of piles of filter screen like this, just so can reduce the amount of wind loss of flowing through the filter screen.
Further, the mounting member is formed with a rail at a position corresponding to the moving member, and the moving member is movable along the rail, so that in the case where the moving member is moved to a target position, one or more layers of the filter net can be disposed at a position of the mounting member corresponding to the ventilation structure.
Furthermore, under the condition that the pollutant concentration is the first concentration threshold value, the first preset number of moving members are made to move towards the direction away from the fixed member so as to adjust the area of the filter screen, and the corresponding number of moving members can be flexibly selected to move towards the direction away from the fixed member so as to adjust the area of the filter screen according to the actual value of the pollutant concentration in the air of the indoor space, so that the filter screens with the corresponding number of layers, such as one layer or more than three layers or other layers, can be laid at the positions of the mounting members corresponding to the ventilation structure, and thus, the air volume loss flowing through the filter screens can be reduced on the basis of ensuring the filtering efficiency.
Further, after laying the corresponding area of the filter screen at the ventilation structure for a set time, the pollutant concentration in the air is re-detected, and in the case that the pollutant concentration is reduced to a second concentration threshold value, a second preset number of moving members are moved to a direction close to the fixed member so as to change the area of the filter screen, wherein the second preset number is less than or equal to the first preset number, and the second concentration threshold value is less than the first concentration threshold value. Under the effect of set filter screen area, can reduce the pollutant concentration in the air of indoor space to second concentration threshold value, in order to avoid the air loss that too much filter screen number of piles caused, make the motion component of second default quantity move to the direction that is close to fixed component, suitably reduce the number of piles of laying the filter screen that the mounting member corresponds to the position of ventilation structure, just so can be better on the basis of ensureing filtration efficiency, reduce the air loss of the filter screen of flowing through.
The invention also provides an air conditioner which comprises a controller and is used for executing the control method of the filtering device of the air conditioner in any one of the aspects.
It should be noted that the air conditioner has all the technical effects of the foregoing control method of the air conditioner, and details are not described herein.
Drawings
The invention is described below with reference to the drawings in conjunction with a ducted air conditioner. In the drawings:
FIG. 1 is a schematic structural view of a ducted air conditioner of an embodiment of the present invention, illustrating a filter arrangement positioned outside of the return air inlet of the ducted air conditioner;
FIG. 2 is a first schematic structural view of a filter assembly of an air duct machine according to an embodiment of the present disclosure;
FIG. 3 is an enlarged schematic view of detail A of FIG. 2;
FIG. 4 is a second schematic structural view of a filter assembly of the ducted air conditioner in accordance with an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of detail B of FIG. 4;
FIG. 6 is an enlarged schematic view of detail C of FIG. 4;
FIG. 7 is a first flowchart illustrating a method of controlling a filter assembly of an air duct machine according to an embodiment of the present invention;
fig. 8 is a second flowchart illustrating a method of controlling the filter device of the ducted air conditioner according to an embodiment of the present invention;
FIG. 9 is a third schematic structural view of a filter assembly of the ducted air conditioner in accordance with an embodiment of the present invention;
FIG. 10 is a fourth schematic structural view of a filter assembly of the ducted air conditioner in accordance with an embodiment of the present invention;
fig. 11 is a schematic structural diagram five of a filter device of an air duct machine according to an embodiment of the present invention.
List of reference numerals:
1. a housing; 11. an air return opening; 2. a filtration device; 21. a mounting member; 211. a top plate; 212. a base plate; 2121. a slideway; 213. a left side plate; 214. a right side plate; 215. a through hole; 22. a first reel; 23. a second reel; 24. a guide mechanism; 241. a fixing member; 242. a moving member; 2421. a first portion; 24211. a pulley; 24212. a connecting plate; 2422. a second portion; 25. and (4) a filter screen.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. Although the present embodiment is described with reference to a ducted air conditioner, the present invention is also applicable to a cabinet air conditioner, a ceiling air conditioner, a wall-mounted air conditioner, a window air conditioner, and other types of air conditioners and other devices having air circulation requirements.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a duct type air conditioner according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a filter device of the duct type air conditioner according to the embodiment of the present invention, fig. 3 is an enlarged schematic view of a portion a of fig. 2, and fig. 4 is a schematic structural diagram of a filter device of the duct type air conditioner according to the embodiment of the present invention. As shown in fig. 1 to 4 and according to the orientation shown in fig. 1, the duct unit includes an indoor air conditioner, the indoor air conditioner includes a casing 1, the casing 1 has an air return opening 11 and an air outlet, air in an indoor space enters the casing 1 through the air return opening 11, and enters the indoor space through the air outlet after being processed by cooling or heating, so as to achieve the purpose of adjusting the air quality in the indoor space. The filter device 2 is disposed outside the return air inlet 11 of the present invention, the filter device 2 includes a mounting member 21 including a top plate 211, a bottom plate 212, a left side plate 213 and a right side plate 214, and the top plate 211, the bottom plate 212, the left side plate 213 and the right side plate 214 form a substantially square structure, and the ventilation structure is a through hole 215 located in the middle of the mounting member, so that air in the indoor space can enter the casing 1 from the through hole 215. The rear side of the mounting member 21 is fixedly connected to the front side of the casing 1 by a fastening member (e.g., a bolt), so that the filtering device 2 is fixedly disposed at the outer side (upstream end) of the air return opening 11, and thus, bacteria, viruses, dust, etc. in the air are adsorbed by the filtering device before the air in the indoor space enters the inside of the casing 1, and the air entering the indoor space after being processed by the indoor unit of the air conditioner is clean, so that the air quality in the indoor space can be better adjusted. Obviously, the filtering device can be arranged at the outer side of the air outlet, and the filtering device can be arranged at the air return opening and the air outlet at the same time, so that a person skilled in the art can flexibly select the arrangement position of the filtering device according to a specific application scene so as to adapt to a more specific application occasion.
It can be understood that the ventilation structure can also be a hollow structure, such as a grid, and those skilled in the art can flexibly select a specific arrangement form of the ventilation structure according to a specific application scenario, as long as air can be allowed to pass through the ventilation structure.
Referring to fig. 1 to 6 and 9 to 11, fig. 5 is an enlarged schematic view of a portion B in fig. 4, fig. 6 is an enlarged schematic view of a portion C in fig. 4, fig. 9 is a third structural schematic view of a filter device of an air duct machine according to an embodiment of the present invention, fig. 10 is a fourth structural schematic view of the filter device of the air duct machine according to an embodiment of the present invention, and fig. 11 is a fifth structural schematic view of the filter device of the air duct machine according to an embodiment of the present invention. As shown in fig. 1 to 6 and 9 to 11, in the orientation shown in fig. 2, the filtering device 2 further includes a pair of reels including a first reel 22 and a second reel 23, the first reel 22 being disposed at a position rearward of the left side plate 213, the second reel 23 being disposed at a position forward of the left side of the right side plate 214, a filter screen 25, and a guide mechanism 24, the guide mechanism 24 being distributed on the left side of the right side plate 214 rearward of the second reel 23 and between the first reel and the second reel so as to be able to guide the filter screen from the first reel 22 to the second reel 23, the second reel 23 and the guide mechanism 24 being located inside the mounting member 21. The filter screen 25 comprises a clean part and a dirty part, the clean part has two ends, the first end of the clean part is connected with the first reel 22 and is wound on the first reel 22, the first reel 22 is rotated by the first driving motor connected with the first reel 22, the second end of the clean part is drawn out and laid at the through hole 215, the first reel 22 stops rotating, so that the filter screen 25 is in an unfolded state at the through hole 215, bacteria, dust and the like in the air flowing through the filter screen 25 can be filtered, and the air quality of the indoor space can be better improved; the second end of the cleaning part is connected with the second reel 23 after bypassing the guiding mechanism 24, and the second reel 23 is provided with a second driving motor, so that after the filter screen 25 which is unfolded at the through hole 215 is used for a period of time, a large amount of bacteria, dust and other pollutants are adsorbed on the filter screen 25, the second reel 23 is rotated by the second driving motor, so that the stain part can be driven to be wound on the second reel 23 through the second reel 23, and after the stain part which is unfolded at the through hole 215 is completely replaced, the second reel 23 stops rotating, thereby realizing the automatic replacement of the filter screen. Obviously, the second reel may also be arranged outside the mounting member, such as outside the right or left side plate, etc. Obviously, the first reel may not be provided with a driving motor, and the filter screen driven by the second reel only drives the first reel to rotate, and those skilled in the art may flexibly select the first reel according to a specific application scenario.
In this embodiment, the filter screen is a melt-blown fabric, so that bacteria, viruses, dust and the like in the air flowing through the filter screen can be better adsorbed. Obviously, the filter screen may be configured in other forms, for example, the filter screen includes a base, and all parts of the base are provided with the meltblown or only a part of the base is provided with the meltblown.
It should be noted that the air quality is usually determined according to the concentration of pollutants in the air, and the pollutants generally include smoke, suspended particulate matters, inhalable particulate matters (PM 10), fine particulate matters (PM 2.5), nitrogen dioxide, sulfur dioxide, carbon monoxide, ozone, volatile organic compounds, and the like. For convenience of explanation, the following takes the concentration of PM2.5 as an example and combines the drawings to explain possible implementations of the present invention.
The air conditioner of the present invention includes a controller for performing the following control method.
Referring to fig. 7, fig. 7 is a first flowchart illustrating a control method of a filter device of an air duct machine according to an embodiment of the present invention. As shown in fig. 7, the control method of the present invention mainly includes:
s10: detecting a concentration of PM2.5 in air of an indoor space;
s20: and adjusting the area of the filter screen paved on the mounting component corresponding to the ventilation structure according to the detected concentration of PM 2.5.
Through the arrangement, the filtering level of the filter screen can be adjusted according to the air quality, so that the quality of the air entering the indoor space is improved. For example, the area of the filter screen can be increased by: originally, only set up the filter screen in air outlet department, also increase the filter screen at the return air inlet when air quality descends, can also be with at least some or all adjustment of filter screen to wave type or fold type or other possible structures, also can set up multilayer filter screen, etc. technical personnel in the art can be according to the adjustment means of specific application scene nimble selection filter screen's area to adapt to more specific application occasion.
In the present invention, the concentration of PM2.5 in the air in the indoor space can be detected by a detection component such as a concentration sensor (hereinafter referred to as a sensor), and the sensor can be disposed at the air return inlet of the air conditioner, or at other positions in the indoor space, and a person skilled in the art can flexibly select the position of the sensor to adjust according to a specific application scenario, so as to adapt to a more specific application scenario.
Referring to fig. 1 to 11 and according to the orientation shown in fig. 2, the guide mechanism 24 includes two fixed members 241 and two moving members 242 located on the right side of the mounting member 21, the fixed members 241 and the moving members 242 are arranged in a staggered manner from inside to outside, the fixed members 241 are located on the left side of the filter screen 25, and the moving members 242 are located on the right side of the filter screen 25, for example, by moving one moving member 242 to the left, 3 layers of filter screens can be laid at the through hole 215, and for example, by moving both moving members 242 to the left, 5 layers of screens can be laid at the through hole 215, so that the number of layers of filter screens laid at the through hole 215 can be adjusted by moving different numbers of moving members to the left, and the area of the filter screens laid at the through hole 215 can be adjusted. Obviously, the fixed members and the moving members may also be in other numbers, such as moving part of the moving members, or moving all the moving members at the same time, and those skilled in the art can flexibly select the number of the fixed members and the moving members, the number of the moving members, etc. according to the specific application scenario, so as to adapt to more specific application scenarios.
In the present embodiment, "adjusting the area of the filter net laid at the position of the mounting member corresponding to the ventilation structure according to the concentration of PM 2.5" specifically includes: according to the concentration of PM2.5, the quantity of the moving components moving relative to the fixed components is adjusted, so that the layer number of the filter screen paved at the position of the mounting component corresponding to the ventilation structure can be effectively adjusted, and the area of the filter screen paved at the position of the mounting component corresponding to the ventilation structure can be adjusted according to the specific air quality.
Referring to fig. 8, fig. 8 is a second flowchart illustrating a control method of a filter device of an air duct machine according to an embodiment of the present invention. As shown in fig. 8, the control method of the present invention specifically includes:
s200: starting the air duct machine, and starting to operate to a stable state;
s201: detecting a concentration of PM2.5 in air of an indoor space;
s202: the concentration of the PM2.5 is a first concentration threshold value, and step S203 is executed;
s203: moving a first preset number of moving members in a direction away from the fixed member;
s204: when the concentration of PM2.5 is reduced to the second concentration threshold value, step S205 is executed;
wherein the second concentration threshold is less than the first concentration threshold.
S205: moving a second preset number of moving members in a direction approaching the fixed member;
and the second preset number is less than or equal to the first preset number.
After the step S205 is executed for a period of time, since the air quality of the indoor space is affected by the change of the air quality of the outdoor environment, the concentration of PM2.5 in the air of the indoor space needs to be detected again, and the step S202 or S204 is returned according to the specific value of the concentration of PM2.5, if the air quality of the outdoor environment is continuously decreased, so that the air quality of the indoor space is also continuously decreased, and the concentration of PM2.5 is increased to the first concentration threshold value, the step S202 is returned, and a certain number of moving members are continuously moved to the left; for another example, if the air quality of the outdoor environment remains unchanged or improves, and the air quality of the indoor space also remains unchanged or improves, and the concentration of PM2.5 decreases to the second concentration threshold, the process returns to step S204, and a certain number of moving members move to the right, so that the air quality of the indoor space can be better adjusted.
Typically, the first concentration threshold has a value of the actual concentration of PM2.5 in the air of the indoor space, e.g., the first concentration threshold is 115 μ g/m or less 3 When the air quality is light pollution, the first concentration threshold is 115-150 mug/m 3 At a value in between, the air quality at that time is considered to be moderately contaminated, and the first concentration threshold is greater than 150. Mu.g/m 3 When the air quality was considered to be heavily contaminated. The second concentration threshold is smaller than the first concentration threshold, and the specific value of the second concentration threshold is related to the value of the first concentration threshold, and the difference between the two values should be within a certain range (such as 15-30 μ g/m) 3 Etc.). Thus, the first predetermined amount is a value within a certain range (which may be a ratio of the total amount, such as 1/4-1/2), and the second predetermined amount is a value within a certain range (which may be less than or equal to the first predetermined amount), and the difference between the two should be usually within a certain range (such as 1 or 2 or other amounts). Generally, when the air quality of the indoor space is poor, a larger area of the filter screen is needed to filter PM2.5 in the air, a larger number of moving members are needed to move left to lay more layers of filter screens at the ventilation holes, such as all moving members, and when the air quality is relatively good, only part of the moving members (such as all moving members) are needed1/2 of the number of the filter screen units), and the filter screen with proper layers is laid at the ventilation hole. However, the excessive number of layers of the filter screens can cause certain air volume loss to the air flowing through the part of the filter screens, so that under the action of the filter screens paved at the ventilating holes, after the filter screens run for a period of time, the air quality of the indoor space is improved, and the number of layers of the filter screens can be properly reduced by moving one part or all of the moving components on the left side to the right, so that the air volume loss can be reduced while the air quality is ensured to be improved. Therefore, on one hand, the air quality can be improved through the intervention of the filter screen, and on the other hand, air with different PM2.5 concentrations can be better handled through the adjustment of the filter screen.
In this embodiment, the number of the moving members actually moving may be controlled according to the concentration of PM2.5, and then the number of layers of the filter screen laid at the vent may also be controlled according to the detected concentration of PM2.5, so that the air quality of the indoor space may be better adjusted.
In a specific embodiment, the first concentration threshold is 85 μ g/m 3 When the concentration of PM2.5 reaches the value, the air quality at the moment is considered to be light pollution, and under the condition of the air quality, PM2.5 in the air can be removed only by one layer of filter screen, so that the aim of purifying the air is fulfilled. That is, the controller does not need to move the moving member to the left, that is, the first predetermined number is zero, and only needs to use a layer of filter net fixedly arranged between the first rotating shaft and the first fixing member at the inner side.
In a specific embodiment, the first concentration threshold is 135 μ g/m 3 When the concentration of PM2.5 reaches the value, the air quality at the moment is considered to belong to medium pollution, under the condition of the air quality, a motion component can be moved leftwards through the controller, namely the first preset quantity is 1, the motion component drives the filter screen to move leftwards until the motion component moves to the leftmost side of the installation component, so that two layers of filter screens can be additionally paved on the outer side of the first layer of filter screen, three layers of filter screens are paved at the positions of the ventilation holes, and the aim of ensuring the air with medium pollution is achievedThe purpose of gas purification. After filtering for a set time (such as 2 hours) by the three-layer filter screen, the air quality of the indoor space is improved, and the concentration of PM2.5 is reduced to a second concentration threshold, such as the concentration of PM2.5 is 120 mu g/m 3 When the filter screen is used, the moving component positioned on the left side can move rightwards, namely the second preset number is 1, the filter screen is driven to move rightwards, the number of layers of the filter screen paved at the vent is reduced, the filtering efficiency is ensured, and the loss of the air volume flowing through the filter screen is reduced.
In a specific embodiment, the first concentration threshold is 180 μ g/m 3 When the concentration of PM2.5 reaches the value, the air quality at the moment is considered to be heavily polluted, under the condition of the air quality, two moving components arranged at intervals can be moved leftwards simultaneously through the controller, namely the first preset quantity is 2, the two moving components drive the filter screens to move leftwards until the filter screens move to the leftmost side of the installation component, so that four layers of filter screens can be additionally paved on the outer side of the first layer of filter screens, five layers of filter screens are paved at the positions of the ventilation holes, and the purpose of purifying the heavily polluted air is achieved. After filtering for a set time (such as 3 hours) by the five-layer filter screen, the air quality of the indoor space is improved, the concentration of PM2.5 is detected again, the concentration of PM2.5 is reduced to a second concentration threshold, for example, the concentration of PM2.5 is 160 mu g/m 3 When the air filter is used, one or two of the moving components positioned on the left side can move rightwards, namely the second preset number is 1 or 2, the filter screen is driven to move rightwards, the number of layers of the filter screen laid at the ventilation hole is reduced, the filtering efficiency is ensured, and the loss of the air volume flowing through the filter screen is reduced. Obviously, the first preset number and the second preset number may be other numbers, and those skilled in the art may flexibly select specific values of the first preset number and the second preset number according to specific application scenarios so as to adapt to more specific application scenarios.
In order to explain in detail the change of the number of layers of the filter screen by the movement of the moving member, the two moving members are moved to the left at the same time as an example and explained with reference to the drawings.
As shown in fig. 1 to 11 and in the orientation shown in fig. 2, the top plate 211 and the bottom plate 212 are correspondingly formed with two slide ways 2121, and the two moving members 242 are respectively disposed on the corresponding slide ways 2121; the motion member 242 includes a first part 2421 and a second part 2422 fixedly connected, the first part 2421 includes two pulleys 24211 and a connection plate 24212, the two pulleys 24211 are disposed at both sides of the connection plate 24212, and the middle part of the connection plate 24212 is connected with the second part 2422; the second part 2422 is of a substantially cylindrical structure and has a height substantially equal to the height of the left side plate 213 and the right side plate 214, the second part 2422 overlaps the filter screen 25, and it can be seen that the first part 2421 is located between the top plate 211 and the bottom plate 212, the upper end and the lower end of the first part 2421 both penetrate the slide passage 2121, the second part 2422 is located below the bottom plate 212, and the upper part of the pulley 24211 abuts against the slide passage 2121, so that the two pulleys 24211 respectively slide leftwards along the corresponding slide passages 2121, the filter screen 25 can be driven to extend leftwards, when sliding to the leftmost end of the slide passage 2121, the other four layers of filter screens can be spread at the through hole 215, that is, outside the air return opening 11, and thus 5 layers of filter screens can be arranged outside the air return opening 11, and bacteria, viruses, dust and the like in the air entering the housing 1 from the indoor space can be better filtered. Obviously, the movement of the moving member achieved by the matching and connection of the pulley and the slide way is only an exemplary description, and other matching manners, such as a slider and a slide way, are also possible, and a person skilled in the art can flexibly select a specific form of matching and connection of the moving member and the track according to a specific application scenario so as to adapt to a more specific application scenario.
It will be appreciated that the first and second portions may also be connected in an integrally formed manner. It will be appreciated that the second portion may also be disposed above the base plate, and those skilled in the art may flexibly select the second portion according to a specific application scenario to adapt to a more specific application scenario.
It is understood that the track includes other number of slideways, such as three groups, etc., and a designer may design the specific arrangement number of slideways according to specific application requirements, and it is also understood that the track may also be in other arrangement forms, and those skilled in the art may also flexibly select the arrangement form of the track according to specific application scenarios so as to adapt to more specific application scenarios.
With continued reference to fig. 1-10 and in the orientation shown in fig. 2, the securing member 241 is fixedly disposed between the top plate 211 and the bottom plate 212 in a generally cylindrical configuration similar to the first portion 2421 to better deploy the filter screen 25 at the aperture 215 when laying the filter screen 25. Obviously, the fixing member may be provided in other forms as long as the portion of the fixing member contacting the filter screen is provided with a structure such as a curved surface or an arc surface that facilitates the sliding of the filter screen on the surface thereof.
In summary, in the preferred embodiment of the present invention, the installation member of the filter device is provided with the ventilation structure for allowing air to pass through, and the filter screen is laid at a position of the installation member corresponding to the ventilation structure, so that bacteria, viruses, dust and the like in the air flowing through the ventilation structure can be effectively removed; the fixed component and the moving component are arranged on two sides of the filter screen, the fixed component is fixed on the right side of the mounting component, and the moving component moves from right to left or from left to right along the slide way, so that the filter screen with proper layers can be arranged on the upstream side of the air return opening as required; the concentration of PM2.5 in the indoor space detected by a sensor, the number of layers of the filter screen paved at the position of the installation component corresponding to the ventilation structure according to the concentration of PM2.5, and the left or right movement of different numbers of movement components can better filter bacteria, dust and the like in the air, and simultaneously can reduce the air volume loss flowing through the filter screen.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A control method of an air conditioner is characterized in that the air conditioner comprises an indoor unit of the air conditioner, the indoor unit of the air conditioner comprises a shell, the shell is provided with a return air inlet and an air outlet, a filtering device is arranged at the position of the return air inlet and/or the air outlet, the filtering device comprises a mounting component and a scroll pair, the scroll pair comprises a first scroll and a second scroll, the first scroll and the second scroll are respectively positioned at two ends of the mounting component along the direction vertical to the flowing direction of air to be filtered, a ventilation structure allowing the air to pass through is arranged on the mounting component,
the filter device also comprises a filter screen and a guide mechanism, wherein the guide mechanism is arranged between the first reel and the second reel so as to guide the filter screen from the first reel to the second reel, a first end of the filter screen is wound on the first reel, the other end of the filter screen bypasses the guide mechanism and is connected with the second reel, the second reel is provided with a driving member, and the driving member drives the second reel to rotate so as to wind the filter screen from the first reel to the second reel, so that the filter screen is laid on the mounting member at a position corresponding to the ventilation structure;
the control method comprises the following steps:
detecting a concentration of a contaminant in air of an indoor space;
adjusting the area of the filter screen paved at the position of the mounting component corresponding to the ventilation structure according to the concentration of the pollutants;
wherein the guide mechanism includes a plurality of fixing members and a plurality of moving members provided at first and second sides of the filter net, so as to adjust the number of layers of the filter net laid at a position of the mounting member corresponding to the ventilation structure by moving different numbers of the moving members with respect to the fixing members,
the "adjusting the area of the filter net laid at the position of the mounting member corresponding to the ventilation structure according to the concentration of the pollutant" includes:
adjusting the number of the moving members moving relative to the fixing member according to the concentration of the pollutants, thereby adjusting the area of the filter screen by adjusting the number of layers of the filter screen laid at the position of the mounting member corresponding to the ventilation structure;
wherein the fixed member and the moving member are staggered from inside to outside, and the direction from inside to outside is the same as the flowing direction of the air to be filtered.
2. The control method according to claim 1, wherein the mounting member is formed with a rail at a position corresponding to the moving member, and the moving member is movable along the rail so as to be movable along the rail
In a case where the moving member is moved to a target position, one or more layers of the filter net can be laid at a position of the mounting member corresponding to the ventilation structure.
3. The control method according to claim 2, wherein said adjusting the number of the moving members that move relative to the fixed member according to the contaminant concentration includes:
and under the condition that the pollutant concentration is a first concentration threshold value, moving a first preset number of the moving members to the direction far away from the fixed member so as to adjust the area of the filter screen.
4. The control method according to claim 3, wherein after the step of moving a first preset number of the moving members in a direction away from the fixed member in a case where the contaminant concentration is a first concentration threshold value, the control method further comprises:
keeping the current area of the filter screen for a set time;
re-detecting the pollutant concentration, and under the condition that the pollutant concentration is reduced to a second concentration threshold value, moving a second preset number of the moving members to the direction close to the fixed member to change the area of the filter screen;
the second preset number is less than or equal to the first preset number, and the second concentration threshold is less than the first concentration threshold.
5. The control method according to any one of claims 2 to 4, wherein the moving member includes a first portion and a second portion fixedly connected or integrally formed, the first portion being of a structure matching the rail, the second portion being moved by movement of the first portion along the rail,
the second part is in butt joint with the filter screen, so that the filter screen is driven to complete the laying of the filter screen at the position of the mounting component corresponding to the ventilation structure through the movement of the second part.
6. The control method of claim 5, wherein the track is a slide and the first portion includes a pulley and a web.
7. The control method according to any one of claims 2 to 4, wherein the filter device further comprises a stopper structure provided at a position of the mounting member away from the fixing member so as to:
in the case that the moving member moves to a target position, the moving member can be continuously located at the target position by the stopper structure.
8. The control method according to any one of claims 2 to 4, wherein the filter screen is a meltblown fabric; or alternatively
The filter screen comprises a base body, and at least one part of the base body is provided with melt-blown cloth.
9. An air conditioner characterized by comprising a controller for executing the control method of the air conditioner as set forth in any one of claims 1 to 8.
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| CN113654152A (en) * | 2021-08-25 | 2021-11-16 | 宁波奥克斯电气股份有限公司 | Intelligent fresh air control method, intelligent fresh air control system and fresh air device |
| CN114370684B (en) * | 2021-12-17 | 2023-04-25 | 珠海格力电器股份有限公司 | Filtering device, air purifying device and control method |
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