CN112161376A - Fresh air system and control method - Google Patents
Fresh air system and control method Download PDFInfo
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- CN112161376A CN112161376A CN202010917376.4A CN202010917376A CN112161376A CN 112161376 A CN112161376 A CN 112161376A CN 202010917376 A CN202010917376 A CN 202010917376A CN 112161376 A CN112161376 A CN 112161376A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/10—Temperature
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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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/20—Humidity
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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
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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Abstract
The invention provides a fresh air system and a control method thereof, wherein the fresh air system comprises: the system comprises a central control module, an air conditioning module, a fresh air module and a detection module; the detection module, the fresh air module and the air conditioning module are in communication connection with the central control module, so that the central control module controls the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters after the indoor and outdoor environmental parameters detected by the detection module are acquired, and indoor temperature control and indoor ventilation are achieved. The new trend system of this application not only can realize indoor temperature control and indoor ventilation, and for adopting new trend equipment to realize ventilating or indoor air exchange among the correlation technique, thereby the new trend system of this application mainly utilizes the indoor outer difference in temperature at night to realize the air convection and realizes indoor outer air exchange, thereby the new trend function that new trend equipment played among the correlation technique is realized, and it is lower to utilize the difference in temperature to realize the air convection and compare in its cost of new trend equipment, do benefit to a large amount of using widely.
Description
Technical Field
The invention relates to the field of air conditioning equipment, in particular to a fresh air system and a control method.
Background
In recent years, with the gradual rise of the living standard of people, the requirements on the living quality are more detailed, according to the relevant statistics, the time of the modern people doing indoor activities is about 70% -90%, and as the production and living modes are more modern, more and more work and various entertainment sports activities can be done indoors, so the living quality, the working efficiency and the body health of people are closely related to the indoor environment quality. In order to create good indoor temperature and humidity environment, the household split air conditioner is more and more popular, the air conditioner also becomes one of the standard configurations of the comfortable families, and particularly in recent years, with the rapid development of the state, the market of the split air conditioner is transferred from cities and towns to vast rural areas.
The research shows that: in the building energy consumption, the air conditioner consumes a large proportion of energy, and in order to save energy consumption and ensure the indoor temperature and humidity effect, the air-conditioned room is usually in a closed state, but the household split air conditioner can not effectively replace outdoor air, and can not effectively purify the air which is polluted and has excessive harmful concentration indoors. If people are in a closed room for a long time, the problems of low indoor oxygen concentration, high pollutant concentration and the like are caused, the concentration of harmful substances in the air is increased along with the increase of the running time of an air conditioner, the indoor air quality is worse and worse, and various activity efficiencies and physical health conditions of indoor personnel are affected. If the patient is in the indoor environment for a long time, the patient can seriously even cause diseases such as sick building syndrome, bronchial asthma, chronic bronchitis and the like, and the prevalence rate of lung cancer and nasopharyngeal carcinoma is increased.
At present, split air conditioners used by most families in China have no fresh air function, and the longer people live in a closed air conditioning room without fresh air, the lower the indoor oxygen concentration is, the higher the concentration of pollutants such as CO2 is, and the more adverse is the human health; only a few high-grade residents can add the fresh air system to solve the problem of poor air quality in an air-conditioning room, but the conventional fresh air system still has the disadvantages of high initial investment of equipment, high operating cost and the like, and the popularization of the fresh air system is difficult to realize due to the fact that the cost performance of the system is low for most families.
Disclosure of Invention
The embodiment of the application discloses a fresh air system and a control method thereof, which can realize ventilation and have lower cost.
In one aspect, an embodiment of the present application discloses a fresh air system, including:
a central control module;
the air conditioning module is in communication connection with the central control module and is used for adjusting the indoor temperature;
the fresh air module is in communication connection with the central control module and is used for realizing indoor and outdoor air exchange;
the detection module is in communication connection with the central control module; wherein:
the detection module is used for detecting indoor and outdoor environment parameters and sending the indoor and outdoor environment parameters to the central control module; and the central control module receives and respectively controls the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters.
Further, the indoor and outdoor environmental parameters include at least one of an indoor and outdoor temperature parameter, an indoor humidity parameter, and an indoor carbon dioxide parameter.
Further, the detection module comprises an indoor temperature sensor and an outdoor temperature sensor, the indoor temperature sensor is used for detecting indoor temperature and sending the indoor temperature parameter to the central control module, and the outdoor temperature sensor is used for detecting outdoor temperature and sending the outdoor temperature parameter to the central control module; the central control module receives the indoor temperature and the outdoor temperature, calculates the temperature difference and judges the temperature condition; wherein:
when the delta t is more than or equal to + t3 and the outdoor temperature parameter is below 28 ℃, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when delta t is less than or equal to-t 4, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the temperature condition judgment is executed in a circulating mode;
wherein, t is t1-t 2; Δ t is the temperature difference; t1 is the indoor temperature parameter; t2 is the outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
Further, the detection module further comprises a carbon dioxide sensor, the carbon dioxide sensor is used for detecting indoor carbon dioxide content parameters and sending the carbon dioxide content parameters to the central control module, and the central control module receives the carbon dioxide content parameters and executes carbon dioxide condition judgment; wherein:
when q is larger than or equal to q1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when q is less than q1, the fresh air module is closed after continuously running for t time, the central control module is controlled to control the air conditioning module to be opened, and the carbon dioxide condition judgment is executed in a circulating mode;
wherein q is the carbon dioxide content parameter; q1 is a preset carbon dioxide threshold.
Furthermore, the detection module further comprises a humidity sensor, the humidity sensor is used for detecting an indoor humidity parameter and sending the indoor humidity parameter to the central control module, and the central control module receives the indoor humidity parameter and executes humidity condition judgment; wherein:
when w is more than or equal to w1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when w is less than w1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the humidity condition judgment is executed in a circulating mode;
wherein w is the indoor humidity parameter; w1 is a preset humidity threshold.
Furthermore, the fresh air module comprises a low-noise fan, the low-noise fan is in communication connection with the central control module, the low-noise fan is arranged on a side wall of the building, an air inlet is formed in a position corresponding to the low-noise fan, and an air outlet is formed in the side wall of the building, which is opposite to or adjacent to the side wall of the low-noise fan.
Furthermore, the air inlet and/or the air outlet are/is provided with a rainproof component which is electrically connected with the central control module, and the central control module controls the rainproof component to automatically contract or expand according to the opening and closing of the low-noise fan.
Furthermore, the fresh air module further comprises a driving part, and the driving part is in communication connection with the central control module and is used for driving the rainproof component to automatically contract or expand; the air inlet is provided with a filtering part.
On the other hand, the embodiment of the application further discloses a control method of the fresh air system, the fresh air system comprises an air conditioning module and a fresh air module, the air conditioning module is used for adjusting the indoor temperature, the fresh air module is used for realizing indoor and outdoor air exchange, and the control method comprises the following steps:
obtaining indoor and outdoor environmental parameters; and
and respectively controlling the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters.
Further, the indoor and outdoor environmental parameters at least comprise at least one of indoor and outdoor temperature parameters, indoor humidity parameters and indoor carbon dioxide parameters.
Further, the indoor and outdoor environmental parameters include an outdoor temperature parameter and an indoor temperature parameter, and the step of respectively controlling the opening or closing of the air conditioning module and the fresh air module according to the indoor and outdoor environmental parameters includes:
calculating to obtain temperature difference according to the outdoor temperature parameter and the indoor temperature parameter and executing temperature condition judgment; wherein:
when delta t is more than or equal to + t3 and the outdoor temperature parameter is below 28 ℃, controlling the fresh air module to be opened and controlling the air conditioning module to be closed;
when delta t is less than or equal to-t 4, controlling the air conditioning module to be opened and the fresh air module to be closed, and circularly executing the temperature condition judgment;
wherein, t is t1-t 2; Δ t is the temperature difference; t1 is the indoor temperature parameter; t2 is the outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
Further, the indoor and outdoor environmental parameters comprise indoor carbon dioxide content parameters, and the step of respectively controlling the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters comprises the following steps:
judging the carbon dioxide condition according to the carbon dioxide content parameter; wherein:
when q is larger than or equal to q1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when q is less than q1, the fresh air module is closed after continuously running for t time, the central control module is controlled to control the air conditioning module to be opened, and the carbon dioxide condition judgment is executed in a circulating mode;
wherein q is the carbon dioxide content parameter; q1 is a preset carbon dioxide threshold.
Further, the indoor and outdoor environmental parameters include an indoor humidity parameter, and the step of respectively controlling the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters includes:
judging humidity conditions according to the indoor humidity parameters; wherein:
when w is more than or equal to w1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when w is less than w1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the humidity condition judgment is executed in a circulating mode;
wherein w is the indoor humidity parameter; w1 is a preset humidity threshold.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the application provides a new trend system, includes: the system comprises a central control module, an air conditioning module, a fresh air module and a detection module; the detection module, the fresh air module and the air conditioning module are in communication connection with the central control module, so that the central control module controls the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters after the indoor and outdoor environmental parameters detected by the detection module are acquired, and indoor temperature control and indoor ventilation are achieved. The new trend system of this application not only can realize indoor temperature control and indoor ventilation, and for adopting new trend equipment to realize ventilating or indoor air exchange among the correlation technique, thereby the new trend system of this application mainly utilizes the indoor outer difference in temperature at night to realize the air convection and realizes indoor outer air exchange, thereby realize the new trend function that new trend equipment played among the correlation technique, and it is lower to utilize the difference in temperature to realize the air convection and compare in its cost of new trend equipment, utilize the outdoor air that the temperature was low at night to realize indoor cooling, a large amount of air conditioner energy consumptions have been saved, do benefit to a large amount of using widely.
Further, the control method of the fresh air system provided by the embodiment can realize automatic switching of ventilation and cooling, is convenient to operate, and improves the comfort of users.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a fresh air system according to an embodiment of the present invention;
fig. 2 is a perspective view of a fresh air system provided in an embodiment of the present invention;
fig. 3 is a schematic circuit structure diagram of a fresh air system according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method of a fresh air system according to an embodiment of the present invention.
Description of reference numerals:
10-a central control module;
20-an air conditioning module;
30-a fresh air module; 310-low noise blower; 320-a rain shield; 330-a filter part; 340-a drive section;
40-a detection module; 410-a temperature sensor; 411-indoor temperature sensor; 412-outdoor temperature sensor; 420-a carbon dioxide sensor; 430-a humidity sensor;
510-an air inlet; 520-air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The technical solution of the present application will be further described with reference to the following embodiments and accompanying drawings.
With the popularization of air conditioning systems in buildings, the influence of students on the indoor environment quality needs to be researched more and more intensively, and the public attention to the influence is higher and higher. On the premise of improving indoor comfort, the indoor environment quality can be efficiently controlled by fusing the prior art, the indoor environment pollution is reduced, the energy consumption is saved, the low-cost split air conditioner fresh air adding system with fresh air regulation can be popularized, and the core of the invention is to build a better indoor living environment for cities and towns and vast rural families and save the energy consumption of the air conditioner. The night ventilation is an energy-saving technology which utilizes the temperature difference between the indoor and the outdoor at night and leads the outdoor air lower than the room temperature to carry out precooling and cold accumulation with the heat convection of indoor air, an enclosure structure, furniture and the like by introducing the outdoor air lower than the room temperature. The energy consumption of the air conditioner during the daytime is reduced, indoor effective ventilation can be achieved, indoor pollutants are diluted, and the living environment is improved. In the transition season of spring and autumn, outdoor fresh low-temperature air can be introduced, and indoor cooling can be realized without starting an air conditioner. The utility model discloses a new trend system utilizes the indoor air exchange of night temperature difference principle to realize low-cost promptly.
As shown in fig. 1 to fig. 3, an embodiment of the present application discloses a fresh air system, including: the system comprises a central control module 10, an air conditioning module 20, a fresh air module 30 and a detection module 40; the detection module 40, the fresh air module 30 and the air conditioning module 20 are all in communication connection with the central control module 10, so that the central control module 10 controls the opening or closing of the air conditioning module 20 and the fresh air module 30 according to the indoor and outdoor environmental parameters after acquiring the indoor and outdoor environmental parameters detected by the detection module 40, and therefore indoor temperature control and indoor ventilation are achieved. Consequently, the new trend system that this embodiment is disclosed not only can realize indoor temperature control and indoor ventilation, and for adopting new trend equipment to realize ventilating or indoor air exchange among the correlation technique, thereby the new trend system of this application mainly utilizes the indoor outer difference in temperature at night to realize the air convection and realize indoor outer air exchange, thereby realize the new trend function that new trend equipment played among the correlation technique, and utilize the difference in temperature to realize that the air convection is compared in its cost of new trend equipment lower, utilize the outdoor air that the temperature is low at night to realize indoor cooling, a large amount of air conditioner energy consumptions have been saved, do benefit to a large amount of using widely.
For example, in this embodiment, the central control module 10 may be a commonly-used controller or processor, and may analyze the indoor and outdoor environmental parameters detected by the detection module 40 to control the opening and closing of the air conditioning module 20 and the fresh air module 30.
For example, the indoor and outdoor environmental parameters at least include at least one of an indoor and outdoor temperature parameter, an indoor humidity parameter and an indoor carbon dioxide parameter, i.e., the indoor and outdoor temperature difference can be obtained according to the indoor and outdoor temperature parameters to determine whether to start the air conditioning module 20 or start the fresh air module 30.
For example, when the outdoor temperature parameter is lower than the indoor temperature by 3 ℃ and the outdoor temperature parameter is lower than 28 ℃, on one hand, the indoor temperature needs to be reduced to a temperature range comfortable for human bodies, and because the outdoor temperature is lower than the indoor temperature, the purposes of reducing the indoor temperature, satisfying the comfort for human bodies and saving the energy consumption of air conditioners can be achieved through the exchange of indoor and outdoor air, at this time, the air conditioning module 20 needs to be closed and the fresh air module 30 needs to be opened to ventilate and reduce the indoor temperature; on the contrary, when the indoor temperature is lower than the outdoor temperature, on the one hand, the indoor temperature needs to be reduced to a temperature range which is comfortable for human bodies, and the purpose of indoor cooling cannot be achieved due to indoor and outdoor air exchange under the condition that the outdoor temperature is higher than the indoor temperature, so that the air conditioning module 20 needs to be opened to cool the indoor space and the fresh air module 30 needs to be closed to achieve the purpose.
For another example, when the indoor carbon dioxide content parameter is too high, for example, higher than the normal carbon dioxide content standard, it is necessary to perform indoor and outdoor air exchange to discharge the indoor carbon dioxide, for example, the fresh air module 30 may be opened to make the indoor carbon dioxide content lower than the standard and the fresh air module 30 may be closed after maintaining for 10 minutes. Otherwise, the air conditioning module 20 may be turned on.
For another example, when the indoor humidity parameter is too high, such as higher than the normal humidity standard, the indoor air and the outdoor air are required to be exhausted, so that the fresh air module 30 can be opened for ventilation. For example, the fresh air module 30 may be opened to make the indoor humidity content lower than the standard and the fresh air module 30 may be closed after maintaining for 10 minutes; otherwise, the air conditioning module 20 may be turned on.
It should be added that the central control module 10 may be provided with a control panel, and the control panel may be used for reminding and controlling the exceeding of the concentration of the indoor pollutants, and reminding the ventilation of the openable external window. For example, the control panel may be configured to display indoor and outdoor environmental parameters and display a control instruction obtained by the central control module 10 according to analysis of the indoor and outdoor environmental parameters, for example, the control instruction is to open the fresh air module 30 and close the air conditioning module 20, or open the air conditioning module 20 for closing the fresh air module 30, so that relevant personnel can obtain a working state of the fresh air system in time or can control whether the central control module 10 needs to execute the relevant control instruction through the control panel; namely, the fresh air system can be set to automatically execute corresponding control instructions according to indoor and outdoor environmental parameters or related personnel can select whether to execute the control instructions according to the execution instructions after inputting the related execution instructions on the control panel, so that two control modes of automatic control and manual control can be met.
Or, besides inputting the relevant execution instruction on the control panel, the mobile terminal can be set, and the mobile terminal can be provided with the relevant control program, and the control program enables the mobile terminal to synchronize each display information on the control panel on the interface of the mobile terminal, so that the user can remotely control the working state of the fresh air system on the mobile terminal.
Further, as shown in fig. 1 to 3, the detection module 40 is a temperature sensor 410, wherein the temperature sensor 410 may include an indoor temperature sensor 411 and an outdoor temperature sensor 412, the indoor temperature sensor 411 is configured to detect an indoor temperature and send an indoor temperature parameter to the central control module 10, and the outdoor temperature sensor 412 is configured to detect an outdoor temperature and send an outdoor temperature parameter to the central control module 10; the central control module 10 receives the indoor temperature and the outdoor temperature, calculates the temperature difference and judges the temperature condition; wherein: when the delta t is more than or equal to + t3, the central control module 10 controls the fresh air module 30 to be opened and controls the air conditioning module 20 to be closed; when the delta t is less than or equal to-t 4, the central control module 10 controls the air conditioning module 20 to be opened and controls the fresh air module 30 to be closed, and the temperature condition judgment is executed circularly; wherein, t is t1-t 2; Δ t is the temperature difference; t1 is an indoor temperature parameter; t2 is an outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
Namely: when the outdoor temperature parameter is higher than the indoor temperature parameter, open air conditioning module 20 this moment and cool down to indoor, when outdoor temperature is less than indoor temperature to certain difference and outdoor temperature below 28 ℃, open new trend module 30 and carry out indoor outer air convection and close air conditioning module 20 simultaneously, constantly circulate above-mentioned process and realize ventilation and cooling automatic switch to bring people's comfort and save air conditioner energy consumption. It should be explained that, in this embodiment, the absolute value of the first preset temperature difference may be consistent with or may not be consistent with the absolute value of the second preset temperature difference, and a specific value thereof is set according to actual needs, which is not specifically exemplified in this embodiment.
In addition, the models of the indoor temperature sensor 411 and the outdoor temperature sensor 412 may be exemplified as: the model numbers of the HIH-3602, the HIH-3605, the HIH-3610 model, the HM1500, the HM1520, the HF3223, the HTF3223 model, the SHT11 model and the SHT15 model can be selected according to actual needs, and the embodiment is not particularly limited thereto.
Further, as shown in fig. 2 to 3, the detecting module 40 further includes a carbon dioxide sensor 420, the carbon dioxide sensor 420 is configured to detect an indoor carbon dioxide content parameter and send the carbon dioxide content parameter to the central control module 10, and the central control module 10 receives the carbon dioxide content parameter and performs carbon dioxide condition judgment; wherein: when q is more than or equal to q1, the central control module 10 controls the fresh air module 30 to be opened and controls the air conditioning module 20 to be closed; when q is less than q1, the central control module 10 controls the air conditioning module 20 to be opened for a time duration t and controls the fresh air module 30 to be closed, and carbon dioxide condition judgment is executed in a circulating mode; wherein q is a carbon dioxide content parameter; q1 is a preset carbon dioxide threshold. That is, when the indoor carbon dioxide content parameter is too high, for example, higher than or equal to the preset carbon dioxide threshold, indoor and outdoor air exchange needs to be realized to discharge the indoor carbon dioxide, and at this time, the fresh air module 30 may be opened to make the indoor carbon dioxide content lower than the preset carbon dioxide threshold and the fresh air module 30 is closed after being maintained for 10 minutes (for example, the duration of t is 10 minutes). Otherwise, the air conditioning module 20 may be turned on to cycle.
In addition, the model of the carbon dioxide sensor may be exemplified by: the IRC-a1 and HT-2000 may also be selected according to actual needs, and this embodiment is not particularly limited thereto.
Further, as shown in fig. 1 to 3, the detection module 40 further includes a humidity sensor 430, the humidity sensor 430 is configured to detect an indoor humidity parameter and send the indoor humidity parameter to the central control module 10, and the central control module 10 receives the indoor humidity parameter and performs humidity condition judgment; wherein: when w is more than or equal to w1, the central control module 10 controls the fresh air module 30 to be opened and controls the air conditioning module 20 to be closed; when w is less than w1, the central control module 10 controls the air conditioning module 20 to be opened and controls the fresh air module 30 to be closed, and the humidity condition judgment is executed circularly; wherein w is an indoor humidity parameter; w1 is a preset humidity threshold. That is, when the indoor humidity content parameter is too high, for example, when being higher than or equal to the preset humidity threshold, the indoor and outdoor air exchange needs to be realized to discharge the indoor moisture, and the fresh air module 30 can be opened at this time so that the indoor humidity content is lower than the preset humidity threshold and the fresh air module 30 is closed after being maintained for 10 minutes. Otherwise, the air conditioning module 20 may be turned on to cycle.
In addition, the model of the humidity sensor 430 may be exemplified by: other models can be selected according to actual needs, such as HIH-3602, HIH-3605, HIH-3610, HM1500, HM1520, HF3223, HTF3223, SHT11 and SHT15, which is not limited in this embodiment.
Further, in order to avoid noise pollution caused by the air exchange process of the fresh air module 30 in the related art, in this embodiment, the fresh air module 30 may include a low noise fan 310, and the low noise fan may be a cross flow fan, a centrifugal fan, or an axial flow fan, so as to avoid generating high volume noise. The low noise blower 310 is in communication connection with the central control module 10, the low noise blower 310 is arranged on a side wall of a building, an air inlet 510 is formed at a position corresponding to the low noise blower, and an air outlet 520 is formed on the side wall of the building opposite to or adjacent to the side wall where the low noise blower is arranged, so that air convection is formed through the air inlet 510 and the air outlet 520 to realize indoor and outdoor air exchange.
Further, as shown in fig. 1, 2, and 3, in order to prevent rain from entering the room through the air inlet 510 or the air outlet 520 in rainy days, a rain-proof component 320 may be disposed at the air inlet 510 and/or the air outlet 520, and the rain-proof component 320 is electrically connected to the central control module 10, and the central control module 10 controls the rain-proof component 320 to automatically retract or expand. For example, the fresh air module 30 further includes a driving part 340, and the driving part 340 is in communication connection with the central control module 10 and is used for driving the rainproof member 320 to automatically retract or expand; the air inlet 510 is provided with a filter portion 330, which can filter the air entering the room once during ventilation, so as to ensure the cleanliness of the air entering the room. The driving part 340 may be a motor, for example, and the filtering part 330 may be a filter screen, for example.
On the other hand, as shown in fig. 4, an embodiment of the present application further discloses a control method of a fresh air system, where the control method can be used in the fresh air system, and the effect of the control method is the same as the function and effect of the fresh air system, and is not described herein again. Specifically, the fresh air system comprises an air conditioning module and a fresh air module, the air conditioning module is used for adjusting indoor temperature, the fresh air module is used for realizing indoor and outdoor air exchange, and the control method comprises the steps of S41 and S42.
And step S41, acquiring indoor and outdoor environment parameters.
And step S42, respectively controlling the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters.
Wherein, the indoor and outdoor environmental parameters obtained in step S41 may include at least one of an indoor and outdoor temperature parameter, an indoor humidity parameter and an indoor carbon dioxide parameter.
In some embodiments, when the indoor and outdoor environment parameters obtained in the step S41 include an outdoor temperature parameter and an indoor temperature parameter, the step S42 may include the steps of:
calculating to obtain temperature difference according to the outdoor temperature parameter and the indoor temperature parameter and executing temperature condition judgment; wherein: when delta t is more than or equal to + t3 and the outdoor temperature is below 28 ℃, controlling the fresh air module to be opened and controlling the air conditioning module to be closed; when delta t is less than or equal to-t 4, controlling the air conditioning module to be opened and the fresh air module to be closed, and circularly executing temperature condition judgment; wherein, t is t1-t 2; Δ t is the temperature difference; t1 is an indoor temperature parameter; t2 is an outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
In some embodiments, when the indoor and outdoor environmental parameters obtained in step S41 include an indoor carbon dioxide content parameter, step S42 may include the steps of:
performing carbon dioxide condition judgment according to the carbon dioxide content parameter; wherein: when q is greater than or equal to q1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed; when q is less than q1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and carbon dioxide condition judgment is executed in a circulating mode; wherein q is a carbon dioxide content parameter; q1 is a preset carbon dioxide threshold.
In some embodiments, when the indoor and outdoor environment parameters obtained in step S41 include an indoor humidity parameter, step S42 may include the steps of:
judging humidity conditions according to the indoor humidity parameters; wherein: when w is more than or equal to w1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed; when w is less than w1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the humidity condition judgment is carried out in a circulating mode; wherein w is an indoor humidity parameter; w1 is a preset humidity threshold.
The control method of the fresh air system provided by the embodiment can realize automatic switching of ventilation and cooling, is convenient to operate, improves the comfort of users, and saves the energy consumption of an air conditioner. In addition, the control method of the fresh air control system of the embodiment can realize night ventilation, and can also realize automatic ventilation or man-machine synergistic effect to prompt a user to open a window for ventilation to realize indoor and outdoor air exchange during the transition season of spring and autumn, so that the indoor environment is improved.
The fresh air system and the control method disclosed by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the fresh air system and the control method of the invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (13)
1. A fresh air system, comprising:
a central control module;
the air conditioning module is in communication connection with the central control module and is used for adjusting indoor temperature and humidity;
the fresh air module is in communication connection with the central control module and is used for realizing indoor and outdoor air exchange and adjusting indoor temperature and humidity and pollutant concentration;
the detection module is in communication connection with the central control module; wherein:
the detection module is used for detecting indoor and outdoor environment parameters and sending the indoor and outdoor environment parameters to the central control module; and the central control module receives and respectively controls the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters.
2. The fresh air system as recited in claim 1, wherein the indoor and outdoor environmental parameters comprise at least one of an indoor and outdoor temperature parameter, an indoor humidity parameter, and an indoor carbon dioxide parameter.
3. The fresh air system as claimed in claim 1, wherein the detection module comprises an indoor temperature sensor and an outdoor temperature sensor, the indoor temperature sensor is used for detecting indoor temperature and sending the indoor temperature parameter to the central control module, and the outdoor temperature sensor is used for detecting outdoor temperature and sending the outdoor temperature parameter to the central control module; the central control module receives the indoor temperature and the outdoor temperature, calculates the temperature difference and judges the temperature condition; wherein:
when the delta t is more than or equal to + t3 and the outdoor temperature parameter is below 28 ℃, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when delta t is less than or equal to-t 4, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the temperature condition judgment is executed in a circulating mode;
wherein, t is t1-t 2; Δ t is the temperature difference; t1 is the indoor temperature parameter; t2 is the outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
4. The fresh air system as claimed in claim 1, wherein the detection module further comprises a carbon dioxide sensor, the carbon dioxide sensor is used for detecting an indoor carbon dioxide content parameter and sending the carbon dioxide content parameter to the central control module, and the central control module receives the carbon dioxide content parameter and performs carbon dioxide condition judgment; wherein:
when q is larger than or equal to q1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when q is less than q1, the fresh air module is closed after continuously running for t time, the central control module is controlled to control the air conditioning module to be opened, and the carbon dioxide condition judgment is executed in a circulating mode;
wherein q is the carbon dioxide content parameter; q1 is a preset carbon dioxide threshold.
5. The fresh air system as claimed in claim 1, wherein the detection module further comprises a humidity sensor, the humidity sensor is used for detecting an indoor humidity parameter and sending the indoor humidity parameter to the central control module, and the central control module receives the indoor humidity parameter and performs humidity condition judgment; wherein:
when w is more than or equal to w1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when w is less than w1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the humidity condition judgment is executed in a circulating mode;
wherein w is the indoor humidity parameter; w1 is a preset humidity threshold.
6. The fresh air system as claimed in claim 1, wherein the fresh air module comprises a low noise blower, the low noise blower is in communication connection with the central control module, the low noise blower is arranged on a side wall of a building, an air inlet is formed at a position corresponding to the low noise blower, and an air outlet is formed on the side wall of the building opposite to or adjacent to the side wall provided with the low noise blower.
7. The fresh air system as claimed in claim 6, wherein a rain-proof component is disposed at the air inlet and/or the air outlet, and the rain-proof component is electrically connected to the central control module, and the central control module controls the rain-proof component to automatically retract or expand according to the on/off of the low noise blower.
8. The fresh air system as claimed in claim 7, wherein the fresh air module further comprises a driving part, the driving part is in communication connection with the central control module and is used for driving the rainproof member to automatically retract or expand; the air inlet is provided with a filtering part.
9. A control method of a fresh air system is characterized in that the fresh air system comprises an air conditioner module and a fresh air module, the air conditioner module is used for adjusting indoor temperature, the fresh air module is used for realizing indoor and outdoor air exchange, and the control method comprises the following steps:
obtaining indoor and outdoor environmental parameters; and
and respectively controlling the air conditioning module and the fresh air module to be opened or closed according to the indoor and outdoor environmental parameters.
10. The control method of claim 9, wherein the indoor and outdoor environmental parameters include at least one of an indoor and outdoor temperature parameter, an indoor humidity parameter, and an indoor carbon dioxide parameter.
11. The control method according to claim 9, wherein the indoor and outdoor environmental parameters include an outdoor temperature parameter and an indoor temperature parameter, and the step of controlling the air conditioning module and the fresh air module to be turned on or off respectively according to the indoor and outdoor environmental parameters includes:
calculating to obtain temperature difference according to the outdoor temperature parameter and the indoor temperature parameter and executing temperature condition judgment; wherein:
when delta t is more than or equal to + t3 and the outdoor temperature parameter is below 28 ℃, controlling the fresh air module to be opened and controlling the air conditioning module to be closed;
when delta t is less than or equal to-t 4, controlling the air conditioning module to be opened and the fresh air module to be closed, and circularly executing the temperature condition judgment;
wherein, t is t1-t 2; Δ t is the temperature difference; t1 is the indoor temperature parameter; t2 is the outdoor temperature parameter; t3 is a first predetermined temperature difference; t4 is the second predetermined temperature difference.
12. The fresh air system according to claim 9, wherein the indoor and outdoor environmental parameters include an indoor carbon dioxide content parameter, and the step of controlling the air conditioning module and the fresh air module to be turned on or off according to the indoor and outdoor environmental parameters respectively includes:
judging the carbon dioxide condition according to the carbon dioxide content parameter; wherein:
when q is larger than or equal to q1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when q is less than q1, the fresh air module is closed after continuously running for t time, the central control module is controlled to control the air conditioning module to be opened, and the carbon dioxide condition judgment is executed in a circulating mode;
wherein q is the carbon dioxide content parameter; q1 is a preset carbon dioxide threshold.
13. The fresh air system according to claim 9, wherein the indoor and outdoor environmental parameters include an indoor humidity parameter, and the step of controlling the air conditioning module and the fresh air module to be turned on or off according to the indoor and outdoor environmental parameters respectively includes:
judging humidity conditions according to the indoor humidity parameters; wherein:
when w is more than or equal to w1, the central control module controls the fresh air module to be opened and controls the air conditioning module to be closed;
when w is less than w1, the central control module controls the air conditioning module to be opened and controls the fresh air module to be closed, and the humidity condition judgment is executed in a circulating mode;
wherein w is the indoor humidity parameter; w1 is a preset humidity threshold.
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