CN114992748A - Fresh air device, fresh air conditioner and fresh air device control method - Google Patents
Fresh air device, fresh air conditioner and fresh air device control method Download PDFInfo
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- CN114992748A CN114992748A CN202210697248.2A CN202210697248A CN114992748A CN 114992748 A CN114992748 A CN 114992748A CN 202210697248 A CN202210697248 A CN 202210697248A CN 114992748 A CN114992748 A CN 114992748A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 69
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 208000024891 symptom Diseases 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 208000019693 Lung disease Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F24F7/003—Ventilation in combination with air cleaning
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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
- F24F11/70—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
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
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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
- 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
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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
- F24F7/007—Ventilation with forced flow
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a fresh air device, a fresh air conditioner and a control method of the fresh air device, wherein the fresh air device comprises a fresh air fan, a filter module is arranged at an air inlet of the fresh air fan, the filter module at least comprises a first filter piece and a second filter piece with different filter grades, the filter module also comprises a shielding part, and the shielding part can shield one of the first filter piece and the second filter piece so that external fresh air flow can enter the fresh air fan through one of the first filter piece and the second filter piece which is not shielded by the shielding part. According to the invention, the filter element with lower filtering grade can be adopted to filter the fresh air to ensure large fresh air quantity when the outdoor air quality is higher, the filter element with higher filtering grade is adopted to filter the fresh air to ensure better filtering effect when the outdoor air quality is lower, and the switching and matching are simple and convenient.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a fresh air device, a fresh air conditioner and a fresh air device control method.
Background
With the improvement of living standard of people, the requirements of people on the household air conditioner are not only satisfied with simple refrigerating and heating functions, but also developed towards the direction of energy conservation, comfort and health. The air conditioner can cause high carbon dioxide concentration and poor air quality in a room when being used in a closed room for a long time, and the fresh air conditioner is produced at the same time in order to solve the trouble. The fresh air conditioner is additionally provided with a fresh air module, so that fresh air is extracted from the outside and conveyed to the inside of the room, and the air circulation is improved. In order to ensure the quality of the air supplied into the room, the air drawn from the outside needs to be filtered through an air filtering device.
At present, use the HEPA net to carry out air filtration in the air conditioner new trend module more, the filtration of HEPA net has different grades, has only used the HEPA net of a grade in most air conditioners. The poor filtration grade of inefficiency HEPA net is not enough when air quality is poor, and high-efficient HEPA net resistance is great, can cause the new trend amount of wind to reduce. However, the requirements of users for the air filtering level are changed according to the quality of the air, and the filtering level needs to be adjusted according to actual conditions.
In the related art, an air treatment device is disclosed, and an air treatment assembly of the air treatment device comprises a plurality of air treatment modules, wherein the air treatment modules are arranged in a main air duct in a layer-by-layer overlapping manner. Each module can only be installed and removed in a manual drawing mode, and the use convenience is not strong.
Disclosure of Invention
Therefore, the fresh air device, the fresh air conditioner and the control method of the fresh air device provided by the invention can overcome the defects that the fresh air filtering module in the fresh air device in the related art has a single filtering grade and cannot be matched with the air quality for adjustment, or a structure with multiple fresh air filtering modules is required to be manually installed or removed, and the convenience is not strong.
In order to solve the above problems, the present invention provides a fresh air device, including a fresh air blower, a filter module is disposed at an air inlet of the fresh air blower, the filter module includes at least a first filter element and a second filter element with different filter grades, and the filter module further includes a shielding component, the shielding component can shield one of the first filter element and the second filter element, so that an external fresh air flow can enter the fresh air blower through the one of the first filter element and the second filter element which is not shielded by the shielding component.
In some embodiments, the filter module further includes a filter module mounting seat, the first filter element and the second filter element being assembled to the filter module mounting seat, and the filter module further includes a displacement driving element capable of driving the shielding element to displace to shield one of the first filter element and the second filter element.
In some embodiments, the displacement driving member includes a rotary motor, a gear is provided on a rotary output shaft of the rotary motor, and the shielding member has a rack portion engaged with the gear.
In some embodiments, the filter module mounting seat comprises a bottom plate with a vent and two upright walls arranged opposite to each other, opposite ends of the shielding component are slidably connected between the two upright walls, and the displacement driving component is arranged on one of the two upright walls.
In some embodiments, two opposite sides of the vertical walls are respectively provided with a sliding groove, and one end of the shielding component corresponding to the sliding groove is provided with a roller which is located in the sliding groove.
In some embodiments, the filter mounting structure further comprises a filter frame having a first mounting location for mounting the first filter element and a second mounting location for mounting the second filter element.
In some embodiments, the filter screen frame has a push-pull force application structure.
In some embodiments, a flow guiding ring is arranged between the filtering module and the air inlet; and/or, still include sealed housing, sealed housing cover locates the outside of filtration module, just sealed housing is last to have the new trend entry.
The invention also provides a fresh air conditioner which comprises the fresh air device.
The invention also provides a control method of the fresh air device, which is used for controlling the fresh air device and comprises the following steps:
when the fresh air fan is controlled to be started, acquiring an outdoor air quality parameter;
comparing the acquired first magnitude relation between the outdoor air quality parameter and the outdoor air quality parameter preset value corresponding to the outdoor air quality parameter;
and controlling the shielding component to shield one of the first filter element and the second filter element according to the first size relation.
In some embodiments, the step of determining the turning on of the fresh air blower includes:
acquiring indoor air quality parameters;
comparing the second magnitude relation between the obtained indoor air quality parameter and the indoor air quality parameter preset value corresponding to the indoor air quality parameter;
and when the second size relationship is that the indoor air quality parameter is not less than the preset value of the indoor air quality parameter corresponding to the indoor air quality parameter, controlling the fresh air fan to be started.
In some embodiments, controlling the blocking component to block one of the first and second filter elements according to the first size relationship includes:
when the first size relation is that the outdoor air quality parameter is not less than the corresponding outdoor air quality parameter preset value, the shielding component is controlled to shield one of the first filter piece and the second filter piece with a relatively low filtering grade; or,
and when the first size relation is that the outdoor air quality parameter is smaller than the corresponding outdoor air quality parameter preset value, controlling the shielding component to shield one of the first filter piece and the second filter piece with a relatively high filtering grade.
In some embodiments, during the process that the shielding component shields the one of the first and second filter members with the relatively high filtering level, when the indoor air quality parameter is not less than the preset indoor air quality parameter value corresponding to the indoor air quality parameter, the shielding component is controlled to shield the one of the first and second filter members with the relatively low filtering level.
In some embodiments, in the starting process of the fresh air fan, when the indoor air quality parameter is smaller than the indoor air quality parameter preset value corresponding to the indoor air quality parameter, the fresh air fan is controlled to be closed.
In some embodiments, the shielding member is controlled to be in a position to shield one of the first filter member and the second filter member having a relatively high filtering level before the fresh air fan is controlled to be turned off.
According to the fresh air device, the fresh air conditioner and the control method of the fresh air device, the filter module is provided with two filter pieces with different filter grades, and the filter pieces capable of playing a filtering role can be selected through the shielding part, so that the filter module can be matched with the filter pieces with corresponding filter grades according to different air qualities, the filter pieces with lower filter grades can be adopted to filter fresh air to ensure large fresh air quantity when the outdoor air quality is higher, the filter pieces with higher filter grades are adopted to filter fresh air to ensure better filtering effect when the outdoor air quality is lower, and the switching and matching are simple and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a fresh air device according to an embodiment of the present invention (with parts disassembled);
FIG. 2 is a schematic diagram of an assembly structure of the fresh air device in FIG. 1;
FIG. 3 is a schematic view of the shielding member of FIG. 1;
FIG. 4 is a schematic structural view of the filter module mounting base of FIG. 1 assembled with a shielding member and a displacement driving member;
FIG. 5 is a schematic diagram of the construction of the filter screen cartridge of FIG. 1;
FIG. 6 is a schematic view of the filter module of FIG. 1 with the first filter element in a filtering condition;
FIG. 7 is a schematic view of the filtration module of FIG. 1 with the second filter element in a filtration state;
fig. 8 is a control logic diagram of a fresh air device according to another embodiment of the present invention.
The reference numerals are represented as:
1. a fresh air fan; 11. an air outlet; 12. an air inlet; 21. a first filter member; 22. a second filter member; 23. a shielding member; 231. a rack portion; 232. a roller; 24. a displacement drive member; 241. a gear; 25. a filtration module mounting base; 251. a chute; 26. a filter screen frame; 261. a push-pull force application structure; 262. a partition plate; 263. supporting ribs; 27. a flow guide ring; 28. sealing the housing; 281. a fresh air inlet.
Detailed Description
Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, a fresh air device is provided, which includes a fresh air blower 1, where the fresh air blower 1 has an air inlet 12 and an air outlet 11, which may be a centrifugal blower specifically, a filter module is disposed at the air inlet 12, the filter module at least includes a first filter 21 and a second filter 22 with different filter levels, and the filter module further includes a shielding component 23, and the shielding component 23 can shield one of the first filter 21 and the second filter 22, so that an external fresh air flow can enter the fresh air blower 1 through one of the first filter 21 and the second filter 22 that is not shielded by the shielding component 23, and enter an indoor space through the air outlet 11. Among this technical scheme, filter module possesses the filtration piece of two kinds of different filtration grades simultaneously, and can realize selecting through the filtration piece that shelters from part 23 to can exert filtering action, thereby make filter module can match the filtration piece of corresponding filtration grade according to the air quality of difference, can guarantee to adopt the filtration piece that the filtration grade is lower to filter the new trend when outdoor air quality is higher and guarantee big fresh air volume, adopt the filtration piece that the filtration grade is higher to filter the better filter effect of new trend assurance when outdoor air quality is lower, it is simple and convenient to switch the matching.
As a specific example, the first filter 21 may employ a low efficiency HEPA net, and the second filter 22 may employ a high efficiency HEPA net. The shielding member 23 may be embodied as a plate structure, such as a common cover plate with a sealing shielding function.
In one implementation, the position of the shielding component 23 can be manually switched to achieve the shielding purpose of one of the first filter component 21 and the second filter component 22, and preferably, the filter module further includes a filter module mounting seat 25, the first filter component 21 and the second filter component 22 are assembled on the filter module mounting seat 25, the filter module further includes a displacement driving component 24, and the displacement driving component 24 can drive the shielding component 23 to generate displacement to achieve the shielding purpose of one of the first filter component 21 and the second filter component 22. In this technical solution, the position of the shielding component 23 can be switched automatically by the displacement driving component 24, and then the position of the shielding component 23 can be switched intelligently by the corresponding control component and the indoor or outdoor air quality condition. Specifically, the shielding member 23 may be slidably connected to a slide groove on the top surface or the bottom surface of the filter module mounting base 25, or may be slidably connected to a slide groove on the side surface of the filter module mounting base 25. The displacement drive member 24 may be provided on one side or on both sides.
The displacement driving component 24 comprises a rotary motor, a gear 241 is arranged on a rotary output shaft of the rotary motor, a rack portion 231 is arranged on the shielding component 23, the rack portion 231 is meshed with the gear 241, and the position switching of the shielding component 23 is realized through meshing transmission of the gear 241 and the rack portion 231, so that the displacement driving component is stable and reliable.
The filter module mounting base 25 includes a bottom plate (not referenced in the figure) having a vent and two vertical walls (not referenced in the figure) arranged relative to each other, opposite ends of the shielding member 23 are slidably connected between the two vertical walls, the displacement driving member 24 is arranged on one of the two vertical walls, further, opposite sides of the two vertical walls are respectively provided with a sliding groove 251, one end of the shielding member 23 corresponding to the sliding groove 251 is provided with a roller 232, the roller 232 is located in the sliding groove 251, it can be understood that the roller 232 can be arranged in a plurality at each corresponding end of the shielding member 23, so as to ensure the stability of the sliding process.
In some embodiments, the filter element mounting/dismounting passage is formed between the two vertical walls, the filter module further includes a filter frame 26, the filter frame 26 has a first mounting position for mounting the first filter element 21 and a second mounting position for mounting the second filter element 22, and a user can draw out or insert the filter frame 26 in the filter element mounting/dismounting passage, so as to realize operations such as replacing the first filter element 21 or the second filter element 22. Preferably, the filter frame 26 has a push-pull force application structure 261, which may be a pull ring structure outside the filter mounting/dismounting passage for facilitating the force application of the user.
In some embodiments, a flow guiding ring 27 is disposed between the filtering module and the air inlet 12, and the flow guiding ring 27 is a circular sleeve structure, so as to rectify and guide the fresh air filtered by the filtering module, so that the inlet air is more uniform; the fresh air device further comprises a sealing shell 28, the sealing shell 28 covers the outside of the filter module, a fresh air inlet 281 is formed in the sealing shell 28, the sealing shell 28 can form sealing protection for the filter module, and external dust and the like are prevented from gathering on the filter module, particularly the first filter piece 21 and the second filter piece 22, so that the service life of the filter pieces is prolonged.
According to an embodiment of the invention, a fresh air conditioner is also provided, which comprises the fresh air device.
Referring to fig. 8, according to an embodiment of the present invention, a control method of a fresh air device is further provided, for controlling the fresh air device, including the following steps:
when the fresh air fan 1 is controlled to be started, outdoor air quality parameters are obtained, and the outdoor air quality parameters can be obtained by real-time monitoring of a corresponding sensor (detection part) and can also be obtained through an online internet, such as a weather applet on a mobile phone;
comparing the first magnitude relation between the obtained outdoor air quality parameter and the outdoor air quality parameter preset value corresponding to the outdoor air quality parameter;
the shielding member 23 is controlled to shield one of the first and second filter members 21 and 22 according to the first size relationship.
Specifically, controlling the shielding member 23 to shield one of the first filter 21 and the second filter 22 according to the first size relationship includes:
when the first size relationship is that the outdoor air quality parameter is not less than the corresponding outdoor air quality parameter preset value, the shielding component 23 is controlled to shield one of the first filter member 21 and the second filter member 22 with a relatively low filtering grade; alternatively, when the first magnitude relation is that the outdoor air quality parameter is smaller than the preset value of the outdoor air quality parameter corresponding thereto, the shielding member 23 is controlled to shield one of the first and second filter members 21 and 22 having a relatively high filtering level.
Among this technical scheme, make filter module can be according to the filtration piece of the corresponding filtration grade of air quality matching of difference, can guarantee to adopt the filtration piece that the filtration grade is lower to filter the new trend and guarantee big fresh air volume when outdoor air quality is higher, adopt the filtration piece that the filtration grade is higher to filter the new trend and guarantee better filter effect when outdoor air quality is lower.
The opening of the fresh air fan 1 can be selected according to the subjective of the user, and as the preference, the opening of the fresh air fan 1 is judged by the following steps:
acquiring indoor air quality parameters, which can be acquired by arranging corresponding detection parts (sensors) in a room;
comparing the second magnitude relation between the obtained indoor air quality parameter and the corresponding indoor air quality parameter preset value;
and when the second size relationship is that the indoor air quality parameter is not less than the preset value of the indoor air quality parameter corresponding to the second size relationship, the fresh air fan 1 is controlled to be started. So can control opening of new trend fan 1 more intelligently, improve the intelligent degree of new trend device.
In some embodiments, during the process that the shielding part 23 shields one of the first and second filter members 21 and 22 having a relatively high filtering level, when the indoor air quality parameter is not less than the preset value of the indoor air quality parameter corresponding thereto, the shielding part 23 is controlled to shield the other one of the first and second filter members 21 and 22 having a relatively low filtering level. Among this technical scheme, after adopting the lower filter piece of filtration grade to filter the first preset time of air inlet, indoor air quality parameter is still higher (also be the air quality lower), further adopts the higher filter piece of filtration grade to carry out the new trend and filters this moment, can make indoor air quality up to standard more fast, satisfies user's demand. In the starting process of the fresh air fan 1, when the indoor air quality parameter is smaller than the corresponding indoor air quality parameter preset value, the fresh air fan 1 is controlled to be closed so as to reduce energy consumption. Preferably, before the fresh air fan 1 is controlled to be turned off, the shielding component 23 is controlled to be in a position for shielding the higher filtering grade of the first filtering piece 21 and the second filtering piece 22, that is, the filtering piece with the lower filtering grade is the initial filtering position, so that the service cycle of the high-efficiency filtering net can be prolonged, and the maintenance cost can be reduced.
As further described below with reference to fig. 8, the outdoor air quality parameter and the indoor air quality parameter both use the air quality index as a specific example, and may also use other parameters (such as carbon dioxide concentration and PM2.5 index) as monitoring objects:
when the AQI is between 0 and 50, the air quality index grade is first grade, the air quality is excellent, the air quality is satisfactory, basically no air pollution is caused, and various crowds can normally move.
When the AQI is between 51 and 100, the air quality index level is two-level, the air quality is good and acceptable, but some contaminants may have a weaker impact on the health of a very small number of unusually sensitive people.
When the AQI is between 101 and 150, the air quality index level is three levels, the air quality is light pollution, the symptoms of susceptible people are slightly aggravated, and the healthy people have irritation symptoms.
When the AQI is between 151 and 200, the air quality index level is four, the air quality is moderate pollution, the symptoms of susceptible people are further aggravated, and the influence on the heart and respiratory system of healthy people is possible.
When the AQI is between 201 and 300, the air quality index grade is five, the air quality is severe pollution, the symptoms of patients with heart diseases and lung diseases are aggravated, the exercise tolerance is reduced, and the symptoms of healthy people generally appear.
When the AQI is more than 300, the air quality index level is six, the air quality is serious pollution, the exercise tolerance of healthy people is reduced, obvious and strong symptoms exist, and certain diseases appear in advance.
And step 2, judging whether to start a fresh air fan according to the indoor air quality index. If the air quality index is larger than or equal to the indoor air quality set value Ci, the indoor air quality set value Ci can be set by a user, the recommended set value of few abnormal sensitive people is not more than 50, and the recommended set value of other people is not more than 100, the fresh air fan is started.
And step 3, obtaining an outdoor air quality index.
And step 4, determining the filtering grade of a filter screen (such as HEPA) according to the outdoor air quality index.
And if the air quality index is larger than or equal to the outdoor air quality set value Co, starting the working state of the high-efficiency filter screen. And if the air quality index is smaller than the outdoor air quality set value Co, starting the low-efficiency filter screen in a working state.
And step 5, obtaining the indoor air quality index again.
And 6, determining whether the filtering grade of the filter screen needs to be switched or not according to the indoor air quality index, and if the air quality index is greater than or equal to the indoor air quality set value Ci, starting the working state of the high-efficiency filter screen. If the air quality index is smaller than the indoor air quality set value Ci, the baffle is reset to the low-efficiency filter screen working state, and the fresh air fan is closed.
The specific values of the indoor air quality set value Ci and the outdoor air quality set value Co may be set to be the same or different.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (15)
1. The utility model provides a new trend device, its characterized in that, includes new trend fan (1), the air intake (12) department of new trend fan (1) is equipped with filter module, filter module is first filtering piece (21), the second of filter grade difference at least, filter module is still including sheltering from part (23), shelter from part (23) and can shelter from first filtering piece (21), one of second filtering piece (22) to make outside new trend air current can pass through not by shelter from part (23) shelter from one of first filtering piece (21), second filtering piece (22) gets into in new trend fan (1).
2. The fresh air device according to claim 1, wherein the filter module further comprises a filter module mounting seat (25), the first filter member (21) and the second filter member (22) being assembled to the filter module mounting seat (25), the filter module further comprising a displacement driving member (24), the displacement driving member (24) being capable of driving the shielding member (23) to displace to shield one of the first filter member (21) and the second filter member (22).
3. The fresh air device as claimed in claim 2, wherein the displacement driving member (24) comprises a rotary motor, a gear (241) is provided on a rotary output shaft of the rotary motor, a rack portion (231) is provided on the shielding member (23), and the rack portion (231) is engaged with the gear (241).
4. The fresh air device as claimed in claim 3, wherein the filter module mounting seat (25) comprises a bottom plate having a vent opening and two upright walls arranged with respect to each other, opposite ends of the shielding member (23) are slidably connected between the two upright walls, and the displacement driving member (24) is arranged on one of the two upright walls.
5. The fresh air device according to claim 4, wherein the two vertical walls are respectively provided with a sliding groove (251) at opposite sides thereof, and a roller (232) is disposed at an end of the shielding member (23) corresponding to the sliding groove (251), wherein the roller (232) is disposed in the sliding groove (251).
6. The fresh air device according to claim 4, wherein a filter mounting/dismounting passage is formed between the two vertical walls, and the filter module further comprises a filter frame (26), wherein the filter frame (26) has a first mounting position for mounting the first filter (21) and a second mounting position for mounting the second filter (22).
7. The fresh air device as claimed in claim 6, wherein the filter screen holder (26) has a push-pull force application structure (261).
8. The fresh air device as claimed in claim 1, wherein a flow guiding ring (27) is arranged between the filter module and the air inlet (12); and/or the air purifier further comprises a sealing shell (28), the sealing shell (28) is covered on the outer side of the filtering module, and a fresh air inlet (281) is arranged on the sealing shell (28).
9. A fresh air conditioner comprising the fresh air device of any one of claims 1 to 8.
10. A control method for a fresh air device, for controlling the fresh air device according to any one of claims 1 to 8, comprising the steps of:
when the fresh air fan (1) is controlled to be started, acquiring an outdoor air quality parameter;
comparing the obtained outdoor air quality parameter with a first size relation of an outdoor air quality parameter preset value corresponding to the outdoor air quality parameter;
controlling the shielding component (23) to shield one of the first filter member (21) and the second filter member (22) according to the first size relationship.
11. The control method according to claim 10, wherein the step of determining the opening of the fresh air fan (1) comprises:
acquiring indoor air quality parameters;
comparing the second magnitude relation between the obtained indoor air quality parameter and the corresponding indoor air quality parameter preset value;
and when the second size relationship is that the indoor air quality parameter is not less than the corresponding indoor air quality parameter preset value, controlling the fresh air fan (1) to be started.
12. The control method according to claim 11, wherein controlling the shielding member (23) to shield one of the first and second filter members (21, 22) according to the first magnitude relationship comprises:
when the first size relation is that the outdoor air quality parameter is not less than the corresponding outdoor air quality parameter preset value, the shielding component (23) is controlled to shield one of the first filter piece (21) and the second filter piece (22) with a relatively low filtering grade; or,
when the first size relation is that the outdoor air quality parameter is smaller than the corresponding outdoor air quality parameter preset value, the shielding component (23) is controlled to shield one of the first filter piece (21) and the second filter piece (22) with a relatively high filtering grade.
13. The control method according to claim 12, wherein, during the process in which the shielding member (23) shields the one of the first and second filter members (21, 22) having the relatively high filtering level, the shielding member (23) is controlled to shield the one of the first and second filter members (21, 22) having the relatively low filtering level when the indoor air quality parameter is not less than the preset indoor air quality parameter value corresponding thereto.
14. The control method according to claim 12, characterized in that during the opening of the fresh air fan (1), when the indoor air quality parameter is smaller than a preset indoor air quality parameter value corresponding to the indoor air quality parameter, the fresh air fan (1) is controlled to be closed.
15. The control method according to claim 14, characterized in that the shielding member (23) is controlled to be in a position to shield one of the first filter member (21) and the second filter member (22) having a relatively high filtration level before the fresh air fan (1) is controlled to be turned off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210697248.2A CN114992748A (en) | 2022-06-20 | 2022-06-20 | Fresh air device, fresh air conditioner and fresh air device control method |
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| CN202210697248.2A CN114992748A (en) | 2022-06-20 | 2022-06-20 | Fresh air device, fresh air conditioner and fresh air device control method |
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