CN112254253A - Fresh air device and control method thereof - Google Patents
Fresh air device and control method thereof Download PDFInfo
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- CN112254253A CN112254253A CN202011007543.8A CN202011007543A CN112254253A CN 112254253 A CN112254253 A CN 112254253A CN 202011007543 A CN202011007543 A CN 202011007543A CN 112254253 A CN112254253 A CN 112254253A
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- 239000001569 carbon dioxide Substances 0.000 claims abstract description 69
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 69
- 239000003344 environmental pollutant Substances 0.000 claims description 45
- 231100000719 pollutant Toxicity 0.000 claims description 45
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
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- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000000796 flavoring agent Substances 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 25
- 230000000694 effects Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 239000003039 volatile agent Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- 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
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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
- 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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- 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)
- Fluid Mechanics (AREA)
- Ventilation (AREA)
Abstract
本发明属于空气处理设备技术领域，具体涉及一种新风装置及其控制方法。本发明旨在解决现有的新风装置存在的无法根据用户的实际需求实现室内气压的调节且功能比较单一的问题。为此目的，在本发明中，当室内的实际二氧化碳浓度值大于预设的二氧化碳浓度阈值时开启新风模式，并在第一风扇向室内供风、第二风扇由室内抽风的情况下，根据实际二氧化碳浓度值确定第一风扇的转速，同时根据室内实际气压值确定第二风扇的转速。如此，实现了新风装置进入新风模式的自动控制，并保证了室内外气压的相对平衡。
The invention belongs to the technical field of air treatment equipment, and in particular relates to a fresh air device and a control method thereof. The present invention aims to solve the problems existing in the existing fresh air device that the indoor air pressure cannot be adjusted according to the actual needs of the user and the functions are relatively single. For this purpose, in the present invention, when the actual carbon dioxide concentration value in the room is greater than the preset carbon dioxide concentration threshold value, the fresh air mode is turned on, and when the first fan supplies air to the room and the second fan draws air from the room, according to the actual The carbon dioxide concentration value determines the rotation speed of the first fan, and at the same time determines the rotation speed of the second fan according to the actual indoor air pressure value. In this way, the automatic control of the fresh air device entering the fresh air mode is realized, and the relative balance of indoor and outdoor air pressure is ensured.
Description
Technical Field
The invention belongs to the technical field of air treatment equipment, and particularly relates to a fresh air device and a control method thereof.
Background
The fresh air device is an air purifying device which can discharge indoor dirty air outdoors and input outdoor fresh air into the room after measures such as sterilization, disinfection, filtration and the like.
The existing fresh air devices mainly have two types, wherein one type of fresh air device can only convey outdoor air to the room, and indoor air can only leak to the outside through gaps of doors and windows; another kind of new trend device can realize can also taking out the room air to outdoor when carrying outdoor air to indoor to keep indoor outer atmospheric pressure balanced.
However, the existing fresh air device has the problems that the indoor air pressure cannot be adjusted according to the actual requirements of users, and the function is single.
Accordingly, there is a need in the art for a new fresh air device and a control method thereof to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, namely the problem that the existing fresh air device cannot adjust the indoor air pressure according to the actual requirements of users and has a single function, the invention provides a new fresh air device and a control method thereof.
Firstly, the invention provides a fresh air device, wherein a first air channel, a second air channel and a circulating air channel are formed in the fresh air device; the first air duct is provided with a first indoor air opening communicated with the indoor space and a first outdoor air opening communicated with the outdoor space; the second air duct is provided with a second indoor air opening communicated with the indoor space and a second outdoor air opening communicated with the outdoor space; the first end of the circulating air duct is communicated with the first air duct, and the second end of the circulating air duct is communicated with the second air duct; a first fan is arranged in the first air channel and is arranged between the first end of the circulating air channel and the first indoor air inlet; a second fan is arranged in the second air channel and is arranged between the second end of the circulating air channel and the second indoor air inlet; the fresh air device is also provided with a first air door component and a second air door component; the controller of the fresh air device is set to be capable of selectively closing the first end of the circulating air duct through the first air door component and the second end of the circulating air duct through the second air door component according to an actual indoor carbon dioxide concentration value, or closing the first air duct through the first air door component and the second air duct through the second air door component; the controller of the fresh air device is also set to adjust the working states of the first fan and the second fan according to the actual indoor air pressure value and the actual carbon dioxide concentration value.
As a preferable technical solution of the fresh air device provided by the present invention, the controller is in communication connection with at least one sensor for monitoring an indoor actual carbon dioxide concentration value and an indoor actual air pressure value; the controller is in communication with at least one of the first damper assembly, the second damper assembly, the first fan, and the second fan.
As a preferable technical solution of the fresh air device provided by the present invention, the controller of the fresh air device is further configured to control the operating state of at least one air processing function in the first air duct or the second air duct according to an indoor actual pollutant concentration value.
As a preferable technical solution of the fresh air device provided by the present invention, the air processing function includes at least one of a plasma generator, a filter, a purifier, a humidifier, and a sterilizer.
Then, the invention also provides a control method of the fresh air device, wherein a first air channel, a second air channel and a circulating air channel are formed in the fresh air device; the first air duct is provided with a first indoor air opening communicated with the indoor space and a first outdoor air opening communicated with the outdoor space; the second air duct is provided with a second indoor air opening communicated with the indoor space and a second outdoor air opening communicated with the outdoor space; the first end of the circulating air duct is communicated with the first air duct, and the second end of the circulating air duct is communicated with the second air duct; a first fan is arranged in the first air channel and is arranged between the first end of the circulating air channel and the first indoor air inlet; a second fan is arranged in the second air channel and is arranged between the second end of the circulating air channel and the second indoor air inlet; the fresh air device is also provided with a first air door component and a second air door component; the control method comprises the following steps: acquiring an indoor actual carbon dioxide concentration value; starting a fresh air mode when the actual carbon dioxide concentration value is larger than a preset carbon dioxide concentration threshold value; the step of turning on the fresh air mode comprises the steps of closing a first end of the circulating air duct through the first air door assembly, closing a second end of the circulating air duct through the second air door assembly, and starting the first fan and the second fan; after a fresh air mode is started, acquiring an indoor actual air pressure value; and controlling the working states of the first fan and the second fan according to the indoor actual air pressure value and the actual carbon dioxide concentration value.
As a preferable aspect of the method for controlling the fresh air device according to the present invention, the step of "controlling the operating states of the first fan and the second fan according to the actual indoor air pressure value and the actual carbon dioxide concentration value" includes: determining the rotating speed of the first fan according to the actual carbon dioxide concentration value under the condition that the first fan supplies air to the indoor space and the second fan draws air from the indoor space; and meanwhile, determining the rotating speed of the second fan according to the indoor actual air pressure value, or controlling the rotating speeds of the first fan and the second fan to be consistent.
As a preferable aspect of the method for controlling the fresh air device according to the present invention, the step of "determining the rotation speed of the first fan based on the actual carbon dioxide concentration value" includes: according to the sequence of the actual carbon dioxide concentration values from large to small, the rotating speed of the first fan sequentially comprises: high, medium, low and off.
As a preferable technical solution of the control method of the fresh air device provided by the present invention, after the step of "acquiring an actual carbon dioxide concentration value indoors", the control method further includes: when the actual carbon dioxide concentration value is smaller than or equal to a preset carbon dioxide concentration threshold value, acquiring an actual pollutant concentration value in indoor air; starting an inner circulation mode when the actual pollutant concentration value is out of a preset normal pollutant concentration range; the step of turning on the internal circulation mode includes closing the first air duct by the first damper assembly and closing the second air duct by the second damper assembly, controlling the operating states of the first fan and the second fan according to the actual pollutant concentration value, and selectively turning on an air treatment function located in the first air duct or the second air duct.
As a preferable technical solution of the control method of the fresh air device provided by the present invention, the step of "controlling the operating states of the first fan and the second fan according to the actual pollutant concentration value" includes: according to the sequence of the actual pollutant concentration values from large to small, the working states of the first fan and the second fan sequentially comprise: the method comprises the steps of controlling the first fan and the second fan to keep high-speed operation, controlling the first fan to keep high-speed operation while controlling the second fan to keep medium-speed operation, controlling the first fan to keep medium-speed operation while turning off the second fan, and turning off the first fan and the second fan simultaneously.
As a preferable technical solution of the control method of the fresh air device provided by the present invention, the actual pollutant concentration value includes at least one of a volatile compound concentration, an odor concentration, and a bacteria concentration; accordingly, the air treatment function includes at least one of a plasma generator, a purifier, and a sterilizer.
In the fresh air device and the control method thereof provided by the invention, when the indoor actual carbon dioxide concentration value is larger than the preset carbon dioxide concentration threshold value, the fresh air mode is started, and under the condition that the first fan supplies air to the indoor and the second fan draws air from the indoor, the rotating speed of the first fan is determined according to the actual carbon dioxide concentration value, and the rotating speed of the second fan is determined according to the indoor actual air pressure value. Therefore, the automatic control of the fresh air device to enter the fresh air mode is realized, and the relative balance of indoor and outdoor air pressure is ensured.
In addition, in the fresh air device and the control method thereof provided by the invention, when the indoor actual carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration threshold value and the indoor actual pollutant concentration value is out of the preset normal pollutant concentration range, the internal circulation mode is started, meanwhile, the working states of the first fan and the second fan are controlled according to the actual pollutant concentration value, and the air processing functional part in the first air channel or the second air channel is selectively started. So, can realize the control of indoor air treatment speed under the inner loop mode, open corresponding air treatment function to the different pollutants of concentration value superscript, pertinence comes to reduce the concentration of this pollutant to make the function of new trend device diversified and can satisfy the actual demand of user under the different circumstances.
Drawings
The fresh air device and the control method thereof of the present invention will be described below with reference to the accompanying drawings. In the drawings:
fig. 1 is a schematic view of an air flow path of a fresh air device in a fresh air mode according to the present embodiment;
FIG. 2 is a schematic view of an airflow path of the fresh air device according to the present embodiment in the internal circulation mode;
fig. 3 is a schematic main flow chart of a control method of the fresh air device in the embodiment;
fig. 4 is a schematic view of a complete flow of a control method of the fresh air device according to this embodiment.
List of reference numerals
1-a first air duct; 11-a first indoor tuyere; 12-a first outdoor tuyere;
2-a second air duct; 21-a second indoor tuyere; 22-a second outdoor tuyere;
3-a circulating air duct;
41-a first fan; 42-a second fan; 412-a motor;
51-a first damper assembly; 52-a second damper assembly;
6-a heat exchanger;
7-mounting a cavity;
8-air handling function.
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. For example, although the present embodiment illustrates only a limited number of air pollutants and corresponding air treatment functions, the number and type of air pollutants and air treatment functions are not constant and may be adjusted as desired by one skilled in the art to suit a particular application without departing from the principles of the present invention.
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 merely 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," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
[ first embodiment ] A method for manufacturing a semiconductor device
In order to solve the above-mentioned problem among the prior art, for the regulation that can't realize indoor atmospheric pressure according to user's actual demand and the problem that the function is more single that solve current new trend device existence, this embodiment provides a new trend device.
As shown in fig. 1 and fig. 2, in the present embodiment, a first air duct 1, a second air duct 2 and a circulating air duct 3 are formed in the fresh air device; the first air duct 1 has a first indoor air opening 11 for communicating with the indoor, and a first outdoor air opening 12 for communicating with the outdoor; the second air duct 2 has a second indoor air opening 21 for communicating with the indoor, and a second outdoor air opening 22 for communicating with the outdoor; the first end of the circulating air duct 3 is communicated with the first air duct 1, and the second end of the circulating air duct 3 is communicated with the second air duct 2; a first fan 41 is arranged in the first air duct 1, and the first fan 41 is arranged between the first end of the circulating air duct 3 and the first indoor air inlet 11; a second fan 42 is arranged in the second air duct 2, and the second fan 42 is arranged between the second end of the circulating air duct 3 and the second indoor air inlet 21; the fresh air device is also provided with a first air door component 51 and a second air door component 52, wherein the first air door component 51 is arranged to be capable of selectively closing the first end of the circulating air duct 3 or the first air duct 1; the second damper assembly 52 is provided to be able to selectively close the second end of the circulating air duct 3 or the second air duct 2.
For example, in the fresh air device in fig. 1, in the fresh air mode, the first air duct 1 is an air flow passage through which outdoor air flows from the first outdoor air inlet 12 to the first indoor air inlet 11, that is, the outdoor air passes through the first air duct 1 from the first outdoor air inlet 12 and then supplies air to the indoor through the first indoor air inlet 11; in the fresh air device in fig. 1, in the fresh air mode, the second air duct 2 is an air flow passage through which outdoor air flows from the second outdoor air opening 22 to the second indoor air opening 21, that is, the indoor air is discharged to the outside through the second outdoor air opening 22 after passing through the second air duct 2 from the second indoor air opening 21.
In the internal circulation mode of the fresh air device in this embodiment in fig. 2, indoor air enters the second air duct 2 from the second indoor air opening 21, passes through the circulation air duct 3, enters the first air duct 1, and is blown into the room from the first indoor air opening 11.
Meanwhile, in the fresh air device of the present embodiment, both in the fresh air mode of fig. 1 and in the internal circulation mode of fig. 2, the first fan 41 is configured to cause the air in the first air duct 1 to blow into the room through the first indoor air opening 11, and the second fan 42 is configured to cause the air in the room to flow from the first indoor air opening 11 to the second air duct 2. It is understood that, since the first air duct 1 and the second air duct 2 of the fresh air device in the embodiment are not greatly different in structure, in another embodiment, the second fan 42 may be further configured to cause the air in the first air duct 1 to be blown into the room through the first indoor air opening 11, and the first fan 41 may be further configured to cause the air in the room to flow from the first indoor air opening 11 to the second air duct 2, so that the normal operation or switching between the fresh air mode and the internal circulation mode of the fresh air device can also be realized.
In the fresh air device provided by this embodiment, the first end of the circulating air duct 3 is closed by the first damper assembly 51, the second end of the circulating air duct 3 is closed by the second damper assembly 52, and simultaneously, both the first fan 41 and the second fan 42 are started, and one of the first fan 41 and the second fan 42 supplies air to the indoor space, and the other fan draws air from the indoor space, so as to start the fresh air mode, at this time, the ventilation speed of the indoor space and the outdoor space and the air pressure in the indoor space can be adjusted by adjusting the rotating speeds of the first fan 41 and the second fan 42; in addition, the first air path 1 is closed by the first damper assembly 51 and the second air path 2 is closed by the second damper assembly 52 and at least one of the first fan 41 and the second fan 42 is turned on to turn on the internal circulation mode, and at this time, the indoor air renewal speed and the indoor air speed can be adjusted by controlling the opening and closing and the rotational speed adjustment of the first fan 41 and the second fan 42. So, through the new trend mode of new trend device and the conversion of inner loop mode and the regulation of indoor wind pressure, wind speed working parameter for the air treatment effect of new trend device more can adapt to user's demand.
As a preferred implementation manner of the above fresh air device provided in this embodiment, the first air door assembly 51 includes a first hinge shaft and a first door body, and the first door body is hinged at a first corner between the circulating air duct 3 and the first air duct 1 through the first hinge shaft; and/or, the second damper assembly 52 includes a second hinge shaft and a second door body hinged at a second corner between the circulating duct 3 and the second duct 2 by the second hinge shaft.
As a preferred implementation manner of the fresh air device provided in this embodiment, a first hinge shaft is fixedly connected to the first door body, the first hinge shaft is rotatably connected to a first corner, and one end of the first hinge shaft is connected to a first stepping motor 412 capable of driving the first hinge shaft to rotate; and/or the second hinge shaft is fixedly connected with the second door body, the second hinge shaft is rotatably connected at the second corner, and one end of the second hinge shaft is connected with a second stepping motor 412 capable of driving the second hinge shaft to rotate.
For example, in fig. 1, a first door body of the first damper assembly 51 is rotated to close a first end of the circulating air duct 3, and a second door body of the second damper assembly 52 is rotated to close a second end of the circulating air duct 3; in fig. 2, the first door of the first damper assembly 51 is rotated to close the first air duct 1, and the second door of the second damper assembly 52 is rotated to close the second air duct 2.
It can be understood that, in the fresh air device of this embodiment, the first hinge shaft of the first air door assembly 51 is fixedly connected to the first door body, the first hinge shaft is rotatably connected to the first corner between the circulating air duct 3 and the first air duct 1, and the purpose of selectively closing the first end of the circulating air duct 3 or the first air duct 1 can be achieved by the first air door assembly 51; similarly, the second hinge shaft of the second air door component 52 is fixedly connected with the second door body, the second hinge shaft is rotatably connected at a second corner between the circulating air duct 3 and the second air duct 2, and the purpose of selectively closing the second end of the circulating air duct 3 or closing the second air duct 2 can be achieved through the second air door component 52. In this manner, the control of the switching between the fresh air mode and the internal circulation mode is facilitated due to the above-described specific positions and specific structures of the first and second damper assemblies 51 and 52.
In addition, it can be understood that the first hinge shaft is rotatably connected to the first corner, so that the first hinge shaft fixedly connected to the first step motor 412 and the first door body can be conveniently driven to rotate together; meanwhile, the second hinge shaft is rotatably connected to the second corner, so that the second hinge shaft and the second door body which are fixedly connected through the second stepping motor 412 can be conveniently driven to rotate together, and the fresh air mode and the internal circulation mode of the fresh air device can be conveniently controlled.
In addition, for the switching control of the fresh air mode and the internal circulation mode of the fresh air device, air doors can be respectively arranged on the first air duct 1, the second air duct 2 and the circulation air duct 3 to independently control the opening and the closing of the air doors. Alternatively, the first hinge shaft may be fixedly connected to the first corner, and the first door body is hinged to the first hinge shaft via a hinge sleeve, and so on. The switching structure of the fresh air mode and the internal circulation mode of the fresh air device of the present embodiment is only exemplified, not exhaustive, and only limited by those skilled in the art, and the above description should not be construed as an undue limitation to the protection scope of the present invention.
As a preferred embodiment of the above fresh air device provided in this embodiment, the heat exchanger 6 in the fresh air device has a first heat exchange channel and a second heat exchange channel that exchange heat with each other; the first heat exchange channel is arranged close to the first indoor air opening 11 and connected in the first air duct 1, and the second heat exchange channel is arranged close to the second indoor air opening 21 and connected in the second air duct 2.
Illustratively, in the fresh air mode as shown in fig. 1, outdoor air passes through the first heat exchange channel of the heat exchanger 6 when entering the room from the outside through the first air duct 1, and indoor air passes through the second heat exchange channel of the heat exchanger 6 when being discharged from the room through the second air duct 2, so that heat exchange can be performed between the air entering the room and the air discharged from the outside, thereby reducing or avoiding the problem that indoor cold or heat is lost to the outside in the fresh air mode.
As a preferred implementation manner of the above fresh air device provided by this embodiment, a first heat exchange channel is formed by a ventilation gap between different capillaries of a capillary network in the heat exchanger 6, and different capillaries of the capillary network are communicated with each other and form a second heat exchange channel. It should be understood that the present embodiment only illustrates one structure of the heat exchanger 6, and in further implementation, a person skilled in the art may select other suitable heat exchangers 6 according to specific situations, such as a dividing wall type, a hybrid type, a regenerative type, a double pipe type heat exchanger, etc. which are common in the market at present.
As a preferred implementation manner of the fresh air device provided in this embodiment, the first heat exchange channel and the second heat exchange channel are perpendicular to each other; and/or the first indoor tuyere 11 and the second indoor tuyere 21 are in the same orientation; and/or the first outdoor tuyere 12 and the second outdoor tuyere 22 are oriented in the same direction. It can be understood that the structure of the fresh air device can be simpler through the embodiment, and meanwhile, the manufacturing or installation process of the fresh air device is more convenient.
As a preferred embodiment of the fresh air device provided in this embodiment, the circulating air duct 3, the portion of the first air duct 1 between the heat exchanger 6 and the first damper assembly 51, and the portion of the second air duct 2 between the heat exchanger 6 and the second damper assembly 52 together enclose the installation cavity 7; the motor 412 of the first fan 41 and/or the second fan 42 is disposed in the mounting chamber 7.
In this way, the motor 412 of the first fan 41 and/or the second fan 42 is disposed in the installation cavity 7 outside the circulating air duct 3, the first air duct 1 and the second air duct 2, so that the influence of heat generation of the motor 412 on the indoor temperature is avoided, and the problem that noise generated by the motor 412 enters the indoor space along the air flow path to influence the user experience is avoided.
As a preferred embodiment of the fresh air device provided in this embodiment, the first fan 41 and/or the second fan 42 are/is a centrifugal fan.
It is to be understood that although the first fan 41 and the second fan 42 in fig. 1 and 2 are both centrifugal fans, the type of the first fan 41 and the second fan 42 is not constant and can be adjusted as needed by one skilled in the art to suit a particular application without departing from the principles of the present invention. For example, the first fan 41 and the second fan 42 may be selected from an axial flow fan, a cross flow fan, and the like.
Furthermore, although the first fan 41 and the second fan 42 are arranged parallel to each other in the rotation axes of fig. 1 and 2, the position relationship between the first fan 41 and the second fan 42 is not constant, and those skilled in the art can adjust the position relationship as needed to suit specific applications without departing from the principles of the present invention. For example, the rotation axes of the first fan 41 and the second fan 42 are perpendicular to each other.
As a preferred embodiment of the fresh air device provided in this embodiment, an air quality monitor is disposed on the first indoor air inlet 11 and/or the second indoor air inlet 21; and the first indoor air inlet 11 and/or the second indoor air inlet 21 are/is provided with an air quantity monitor.
Illustratively, the quality of air entering into or discharged from the room may be monitored by an air quality monitor provided on the first indoor air port 11 and/or the second indoor air port 21, so that the control of the opening, closing and operation mode switching of the fresh air device is realized according to the monitored air quality. For example, in the internal circulation mode, when the carbon dioxide concentration of the indoor air is monitored to be high, the indoor air is switched to the fresh air mode; and when the indoor air is processed to meet the requirements, the fresh air device can stop running, and the like. In addition, through the air volume monitors arranged on the first indoor air inlet 11 and/or the second indoor air inlet 21, the indoor air inlet volume and the indoor air outlet volume can be kept consistent under the fresh air mode, so that the indoor and outdoor air pressure balance is ensured.
As a preferred embodiment of the above fresh air device provided in this embodiment, at least one of a plasma generator, a purifier, a sterilizer, a humidifier and a filter is disposed between the first indoor air port 11 and the first damper assembly 51 in the first air duct 1; and/or, the second duct 2 is provided with at least one of a plasma generator, a purifier, a sterilizer, a humidifier, and a filter between the second indoor air opening 21 and the second damper assembly 52.
For example, by providing the air treatment functions 8 such as a plasma generator, a purifier, a sterilizer, a humidifier, and a filter in the first air duct 1 or the second air duct 2 for supplying air to the room, the air entering the room can be purified, sterilized, and filtered in the fresh air mode or the internal circulation mode, so as to ensure the quality of the air in the room. Wherein, since the filter generally does not require power, the filter generally does not need to be controlled, and the plasma generator, the purifier, the sterilizer, etc. can be selectively turned on or off according to the monitored concentration value of the pollutants in the air.
For example, the filter may be composed of activated carbon and an air filter screen that includes a primary filter layer and a high efficiency filter layer, the primary filter layer being located before the high efficiency filter layer; the primary filter layer is a non-woven fabric layer or a glass fiber layer, and the high-efficiency filter layer is a 3M electrostatic electret filter screen layer. For another example, the sterilizer may be a UVC sterilizer provided with ultraviolet sterilizing beads, wherein UVC (ultraviolet c) refers to short-wave ultraviolet rays with a wavelength of 200-275 nm, and the UVC short-wave ultraviolet rays are emitted by a conventional ultraviolet sterilizing lamp.
For another example, the purifier may be a purifier with electrostatic adsorption function, which generates a plasma field by a plasma generator, wherein the plasma field is enriched with a large amount of active species, such as ions, electrons, excited atoms, molecules, radicals, and the like; the active species dissociate the contaminant molecules from the small molecule species to break down volatile compounds in the air.
For another example, when the indoor air is dry, the humidifier can be turned on, and the atomized moisture is sent into the room through the fresh air device along with the wind to adjust the indoor air humidity; this new trend device can detect indoor air humidity through humidity transducer, and when indoor air humidity was less than preset humidity range, the controller of new trend device opened the humidifier, and when indoor air humidity was in preset humidity range, the controller of new trend device closed the humidifier.
Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.
[ second embodiment ]
In order to solve the above problems in the prior art, that is, to solve the problem that the existing fresh air device cannot adjust the indoor air pressure according to the actual needs of the user and has a single function, the present embodiment provides a new fresh air device and a control method thereof.
First, the present embodiment provides a fresh air device, as shown in fig. 1 and fig. 2, a first air duct 1, a second air duct 2 and a circulating air duct 3 are formed in the fresh air device; the first air duct 1 has a first indoor air opening 11 for communicating with the indoor, and a first outdoor air opening 12 for communicating with the outdoor; the second air duct 2 has a second indoor air opening 21 for communicating with the indoor, and a second outdoor air opening 22 for communicating with the outdoor; the first end of the circulating air duct 3 is communicated with the first air duct 1, and the second end of the circulating air duct 3 is communicated with the second air duct 2; a first fan 41 is arranged in the first air duct 1, and the first fan 41 is arranged between the first end of the circulating air duct 3 and the first indoor air inlet 11; a second fan 42 is arranged in the second air duct 2, and the second fan 42 is arranged between the second end of the circulating air duct 3 and the second indoor air inlet 21; the fresh air device is also provided with a first air door component 51 and a second air door component 52; the controller of the fresh air device is set to selectively seal the first end of the circulating air duct 3 through the first air door component 51 and the second end of the circulating air duct 3 through the second air door component 52 according to the actual carbon dioxide concentration value in the room, or seal the first air duct 1 through the first air door component 51 and seal the second air duct 2 through the second air door component 52; the controller of the fresh air device is also configured to adjust the operating conditions of the first fan 41 and the second fan 42 based on the actual indoor air pressure value and the actual carbon dioxide concentration value.
Illustratively, in the fresh air device provided in this embodiment, when the actual carbon dioxide concentration value in the room is greater than the preset carbon dioxide concentration threshold value, the fresh air mode is started, that is, the first end of the circulating air duct 3 is closed by the first damper assembly 51, the second end of the circulating air duct 3 is closed by the second damper assembly 52, and the first fan 41 and the second fan 42 are started; and under the condition that the first fan 41 supplies air to the indoor space and the second fan 42 draws air from the indoor space, the rotating speed of the first fan 41 is determined according to the actual carbon dioxide concentration value, and the rotating speed of the second fan 42 is determined according to the actual indoor air pressure value. So, realized the automatic control that new trend device got into the new trend mode to guaranteed the relative balance of indoor outer atmospheric pressure or make indoor atmospheric pressure keep at human comfortable within range, if about 101.3kPa, can exert effectual effect to the adjustment that low atmospheric pressure weather or high altitude area realized indoor atmospheric pressure.
When the indoor actual carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration threshold value, whether an internal circulation mode is started or not can be judged according to the indoor actual pollutant concentration value, in the internal circulation mode, the first air duct 1 is closed through the first air door assembly 51, the second air duct 2 is closed through the second air door assembly 52, meanwhile, the working states of the first fan 41 and the second fan 42 are controlled according to the actual pollutant concentration value, and the air treatment function part 8 located in the first air duct 1 or the second air duct 2 is selectively started. Therefore, the control of the indoor air treatment speed in the internal circulation mode can be realized, and the corresponding air treatment functional part 8 is opened for different pollutants with concentration values exceeding the standard so as to reduce the concentration of the pollutants in a targeted manner, so that the function of the fresh air device is diversified and the actual requirements of users under different conditions are met.
As a preferred implementation manner of the fresh air device provided in this embodiment, the controller is in communication connection with at least one sensor for monitoring an indoor actual carbon dioxide concentration value and an indoor actual air pressure value; the controller is communicatively coupled to at least one of the first damper assembly 51, the second damper assembly 52, the first fan 41, and the second fan 42.
For example, the controller of the fresh air device may control the first damper assembly 51, the second damper assembly 52, the first fan 41 and the second fan 42 according to the monitored indoor actual carbon dioxide concentration value and the indoor actual air pressure value, so as to realize the automatic switching of the fresh air mode and the internal circulation mode in the fresh air device of the present embodiment and the control of the indoor air speed and pressure. For a specific control process, please refer to the following detailed description of the control method of the fresh air device,
as a preferred implementation manner of the above fresh air device provided in this embodiment, the controller of the fresh air device is further configured to control the working state of at least one air processing function 8 located in the first air duct 1 or the second air duct 2 according to an indoor actual pollutant concentration value.
Illustratively, the actual contaminant concentration value includes at least one of a concentration of a volatile compound, an odor concentration, a bacteria concentration; accordingly, the air treatment function 8 includes at least one of a plasma generator, a purifier, a humidifier, and a sterilizer. In the internal circulation mode, when the concentration value of a certain pollutant in the indoor air exceeds the standard, the air treatment function 8 for removing the pollutant is correspondingly started.
In addition, a filter may be disposed in the first air duct 1 or the second air duct 2, and the filter does not consume electric energy generally, and the filter does not need to be controlled.
[ third embodiment ]
The embodiment provides a control method of a fresh air device, wherein a first air channel 1, a second air channel 2 and a circulating air channel 3 are formed in the fresh air device; the first air duct 1 has a first indoor air opening 11 for communicating with the indoor, and a first outdoor air opening 12 for communicating with the outdoor; the second air duct 2 has a second indoor air opening 21 for communicating with the indoor, and a second outdoor air opening 22 for communicating with the outdoor; the first end of the circulating air duct 3 is communicated with the first air duct 1, and the second end of the circulating air duct 3 is communicated with the second air duct 2; a first fan 41 is arranged in the first air duct 1, and the first fan 41 is arranged between the first end of the circulating air duct 3 and the first indoor air inlet 11; a second fan 42 is arranged in the second air duct 2, and the second fan 42 is arranged between the second end of the circulating air duct 3 and the second indoor air inlet 21; the fresh air device is also provided with a first air door component 51 and a second air door component 52; the control method comprises the following steps:
s1, acquiring an indoor actual carbon dioxide concentration value;
s2, judging whether the indoor actual carbon dioxide concentration value is larger than a preset carbon dioxide concentration threshold value;
s21, when the actual carbon dioxide concentration value is larger than a preset carbon dioxide concentration threshold value, starting a fresh air mode; wherein, the step of "opening the fresh air mode" includes closing the first end of the circulating air duct 3 by the first damper assembly 51, closing the second end of the circulating air duct 3 by the second damper assembly 52, and starting the first fan 41 and the second fan 42;
s31, acquiring an indoor actual air pressure value after the fresh air mode is started;
s41, controlling the operation status of the first fan 41 and the second fan 42 according to the actual indoor air pressure value and the actual carbon dioxide concentration value.
As a preferred embodiment of the method for controlling the fresh air device provided in this embodiment, the step of "controlling the operating states of the first fan 41 and the second fan 42 according to the actual indoor air pressure value and the actual carbon dioxide concentration value" in step S41 includes:
s411, under the condition that the first fan 41 supplies air to the indoor space and the second fan 42 draws air from the indoor space, determining the rotating speed of the first fan 41 according to the actual carbon dioxide concentration value;
and S412, determining the rotating speed of the second fan 42 according to the indoor actual air pressure value, or controlling the rotating speeds of the first fan 41 and the second fan 42 to be consistent.
It can be understood that, in the control method of the fresh air device provided in this embodiment, when the actual carbon dioxide concentration value in the room is greater than the preset carbon dioxide concentration threshold value, the fresh air mode is started, and under the condition that the first fan 41 supplies air to the room and the second fan 42 draws air from the room, the rotation speed of the first fan 41 is determined according to the actual carbon dioxide concentration value, and the rotation speed of the second fan 42 is determined according to the actual indoor air pressure value. So, realized the automatic control that new trend device got into the new trend mode to guaranteed the relative balance of indoor outer atmospheric pressure or make indoor atmospheric pressure keep at human comfortable within range, if about 101.3kPa, can exert effectual effect to the adjustment that low atmospheric pressure weather or high altitude area realized indoor atmospheric pressure.
In the specific control of the fresh air mode of the fresh air device in this embodiment, if the indoor air pressure is greater than the outdoor air pressure or the preset standard air pressure, the actual indoor air pressure value may be reduced by increasing the rotation speed of the second fan 42; if the indoor air pressure is less than the outdoor air pressure or the preset standard air pressure, the actual air pressure value in the room may be increased by decreasing the rotation speed of the second fan 42.
Alternatively, as another practical way, the rotation speeds of the first fan 41 and the second fan 42 may be controlled to be consistent, so that the indoor air intake and air output are always consistent, thereby keeping the indoor and outdoor air pressures balanced.
As a preferred embodiment of the method for controlling the fresh air device provided in this embodiment, the step of "determining the rotation speed of the first fan 41 according to the actual carbon dioxide concentration value" in step S411 includes: according to the sequence of the actual carbon dioxide concentration values from large to small, the rotation speed of the first fan 41 sequentially comprises: high, medium, low and off. That is, the larger the actual carbon dioxide concentration value in the room is, the larger the rotation speed of the first fan 41 is, so as to achieve the purpose of rapidly supplementing the outdoor oxygen to the room and discharging the indoor carbon dioxide to the outside.
As a preferred embodiment of the method for controlling the fresh air device provided in this embodiment, after the step of "acquiring an actual carbon dioxide concentration value in a room" in step S1, the method further includes:
s22, when the actual carbon dioxide concentration value is smaller than or equal to the preset carbon dioxide concentration threshold value, acquiring the actual pollutant concentration value in the indoor air;
s32, judging whether the actual pollutant concentration value is out of the preset normal pollutant concentration range;
s42, when the actual pollutant concentration value is out of the preset normal pollutant concentration range, starting an internal circulation mode; the step of "opening the internal circulation mode" includes closing the first air duct 1 by the first damper assembly 51 and closing the second air duct 2 by the second damper assembly 52, controlling the operating states of the first fan 41 and the second fan 42 according to the actual pollutant concentration value, and selectively opening the air treatment function 8 located in the first air duct 1 or the second air duct 2.
It can be understood that, in the control method of the fresh air device provided in this embodiment, when the actual indoor carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration threshold value and the actual indoor pollutant concentration value is outside the preset normal pollutant concentration range, the internal circulation mode is started, and meanwhile, the operating states of the first fan 41 and the second fan 42 are controlled according to the actual pollutant concentration value, and the air treatment function 8 located in the first air duct 1 or the second air duct 2 is selectively started. Therefore, the control of the indoor air treatment speed in the internal circulation mode can be realized, and the corresponding air treatment functional part 8 is opened for different pollutants with concentration values exceeding the standard so as to reduce the concentration of the pollutants in a targeted manner, so that the function of the fresh air device is diversified and the actual requirements of users under different conditions are met.
As a preferred embodiment of the control method of the fresh air device provided in this embodiment, the step of "controlling the operating states of the first fan 41 and the second fan 42 according to the actual pollutant concentration value" in step S42 includes: according to the sequence of actual pollutant concentration values from large to small, the working states of the first fan 41 and the second fan 42 sequentially include: controlling both the first fan 41 and the second fan 42 to operate at a high rotational speed, controlling the first fan 41 to operate at a high rotational speed while controlling the second fan 42 to operate at a medium rotational speed, controlling the first fan 41 to operate at a medium rotational speed while turning off the second fan 42, and simultaneously turning off the first fan 41 and the second fan 42.
It can be understood that the larger the actual pollutant concentration value is, the larger the circulation speed of the wind in the internal circulation mode can be controlled to achieve the purpose of quickly removing the pollutants in the room.
As a preferred implementation manner of the control method of the fresh air device provided in this embodiment, the actual pollutant concentration value includes at least one of a concentration of a volatile compound, a concentration of an odor, and a concentration of bacteria; accordingly, the air treatment function 8 includes at least one of a plasma generator, a purifier, and a sterilizer. Among them, formaldehyde, benzene series, TVOC (total Volatile Organic Compounds), etc. are common Volatile compounds.
It should be noted that although the detailed steps of the control method of the fresh air device in the embodiment are described in detail above, those skilled in the art can combine, separate and change the order of the above steps without departing from the basic principle of the present invention, and the modified technical solution does not change the basic concept of the present invention, and therefore, the steps also fall within the protection scope of the present invention. For example, the steps of acquiring the actual carbon dioxide concentration value in the room in step S1 and acquiring the actual pollutant concentration value in the indoor air in step S22 may be performed simultaneously, or step S22 may be performed when the actual carbon dioxide concentration value in the room is less than or equal to the preset carbon dioxide concentration threshold.
It should be understood by those skilled in the art that the control method of the fresh air device provided in the present embodiment may be stored as a program in a computer-readable storage medium. The storage medium includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to perform some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
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 (10)
1. A fresh air device is characterized in that a first air duct, a second air duct and a circulating air duct are formed in the fresh air device;
the first air duct is provided with a first indoor air opening communicated with the indoor space and a first outdoor air opening communicated with the outdoor space; the second air duct is provided with a second indoor air opening communicated with the indoor space and a second outdoor air opening communicated with the outdoor space;
the first end of the circulating air duct is communicated with the first air duct, and the second end of the circulating air duct is communicated with the second air duct;
a first fan is arranged in the first air channel and is arranged between the first end of the circulating air channel and the first indoor air inlet; a second fan is arranged in the second air channel and is arranged between the second end of the circulating air channel and the second indoor air inlet;
the fresh air device is also provided with a first air door component and a second air door component;
the controller of the fresh air device is set to be capable of selectively closing the first end of the circulating air duct through the first air door component and the second end of the circulating air duct through the second air door component according to an actual indoor carbon dioxide concentration value, or closing the first air duct through the first air door component and the second air duct through the second air door component;
the controller of the fresh air device is also set to adjust the working states of the first fan and the second fan according to the actual indoor air pressure value and the actual carbon dioxide concentration value.
2. The fresh air device as claimed in claim 1, wherein the controller is communicatively connected to at least one sensor for monitoring an actual indoor carbon dioxide concentration value and an actual indoor air pressure value;
the controller is in communication with at least one of the first damper assembly, the second damper assembly, the first fan, and the second fan.
3. The fresh air device as claimed in claim 1, wherein the controller of the fresh air device is further configured to control an operating state of at least one air treatment function located in the first air duct or the second air duct according to an indoor actual pollutant concentration value.
4. The fresh air device as recited in claim 3, wherein the air treatment functionality comprises at least one of a plasma generator, a filter, a purifier, a humidifier, and a sterilizer.
5. A control method of a fresh air device is characterized in that a first air channel, a second air channel and a circulating air channel are formed in the fresh air device;
the first air duct is provided with a first indoor air opening communicated with the indoor space and a first outdoor air opening communicated with the outdoor space; the second air duct is provided with a second indoor air opening communicated with the indoor space and a second outdoor air opening communicated with the outdoor space;
the first end of the circulating air duct is communicated with the first air duct, and the second end of the circulating air duct is communicated with the second air duct;
a first fan is arranged in the first air channel and is arranged between the first end of the circulating air channel and the first indoor air inlet; a second fan is arranged in the second air channel and is arranged between the second end of the circulating air channel and the second indoor air inlet;
the fresh air device is also provided with a first air door component and a second air door component;
the control method comprises the following steps:
acquiring an indoor actual carbon dioxide concentration value;
starting a fresh air mode when the actual carbon dioxide concentration value is larger than a preset carbon dioxide concentration threshold value; the step of turning on the fresh air mode comprises the steps of closing a first end of the circulating air duct through the first air door assembly, closing a second end of the circulating air duct through the second air door assembly, and starting the first fan and the second fan;
after a fresh air mode is started, acquiring an indoor actual air pressure value;
and controlling the working states of the first fan and the second fan according to the indoor actual air pressure value and the actual carbon dioxide concentration value.
6. The control method according to claim 5, wherein the step of controlling the operating states of the first fan and the second fan based on the indoor actual air pressure value and the actual carbon dioxide concentration value comprises:
determining the rotating speed of the first fan according to the actual carbon dioxide concentration value under the condition that the first fan supplies air to the indoor space and the second fan draws air from the indoor space; at the same time, the user can select the desired position,
and determining the rotating speed of the second fan according to the indoor actual air pressure value, or controlling the rotating speeds of the first fan and the second fan to be consistent.
7. The control method of claim 6, wherein the step of determining the rotational speed of the first fan based on the actual carbon dioxide concentration value comprises:
according to the sequence of the actual carbon dioxide concentration values from large to small, the rotating speed of the first fan sequentially comprises: high, medium, low and off.
8. The control method according to claim 5, characterized in that, after the step of "acquiring an actual carbon dioxide concentration value in a chamber", the control method further comprises:
when the actual carbon dioxide concentration value is smaller than or equal to a preset carbon dioxide concentration threshold value, acquiring an actual pollutant concentration value in indoor air;
starting an inner circulation mode when the actual pollutant concentration value is out of a preset normal pollutant concentration range; the step of turning on the internal circulation mode includes closing the first air duct by the first damper assembly and closing the second air duct by the second damper assembly, controlling the operating states of the first fan and the second fan according to the actual pollutant concentration value, and selectively turning on an air treatment function located in the first air duct or the second air duct.
9. The control method according to claim 8, wherein the step of controlling the operating states of the first fan and the second fan based on the actual pollutant concentration value comprises:
according to the sequence of the actual pollutant concentration values from large to small, the working states of the first fan and the second fan sequentially comprise: the method comprises the steps of controlling the first fan and the second fan to keep high-speed operation, controlling the first fan to keep high-speed operation while controlling the second fan to keep medium-speed operation, controlling the first fan to keep medium-speed operation while turning off the second fan, and turning off the first fan and the second fan simultaneously.
10. The control method of claim 8, wherein the actual contaminant concentration value comprises at least one of a concentration of volatile compounds, an off-flavor concentration, a bacteria concentration; accordingly, the number of the first and second electrodes,
the air treatment function part comprises at least one of a plasma generator, a purifier and a sterilizer.
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| CN114061080A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔空调器有限总公司 | Fresh air control method and device, electronic equipment and storage medium |
| WO2023221558A1 (en) * | 2022-05-19 | 2023-11-23 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling fresh air ventilator, fresh air ventilator and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111895506A (en) * | 2020-07-17 | 2020-11-06 | Tcl空调器(中山)有限公司 | Air conditioner fresh air control method and air conditioner |
| CN111895506B (en) * | 2020-07-17 | 2021-11-23 | Tcl空调器(中山)有限公司 | Air conditioner fresh air control method and air conditioner |
| CN114061080A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔空调器有限总公司 | Fresh air control method and device, electronic equipment and storage medium |
| WO2023221558A1 (en) * | 2022-05-19 | 2023-11-23 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling fresh air ventilator, fresh air ventilator and storage medium |
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Application publication date: 20210122 |