Air treatment system and control method thereof

Abstract

The invention provides an air treatment system and a control method thereof, and the system comprises a humidification unit which adjusts the humidity of air flowing through the humidification unit; the control unit is used for adjusting the humidification modes of the humidification unit according to the preset time period, the humidification modes of the humidification unit comprise the first humidification mode and the second humidification mode, the humidification amount of the first humidification mode is smaller than that of the second humidification mode, and in the first preset time period, the control unit controls the humidification unit to execute the first humidification mode, and in the second preset time period, the control unit controls the humidification unit to execute the second humidification mode; and in a second preset time period, the control unit controls the humidifying unit to execute a second humidifying mode. According to the air treatment system and the control method thereof, through the control system, the humidification mode and the humidification amount of the humidification equipment are adjusted at different time periods according to actual requirements, the indoor dry environment is improved, the comfort of the indoor environment is improved, and meanwhile the infectivity of pathogens is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air treatment. Background Art

[0002] In order to improve the indoor air humidity, a humidifier is usually used to humidify the air to keep the indoor air at a comfortable humidity. In the existing humidification technology, the humidifier usually humidifies according to the humidification mode set by the user, and the humidification device cannot automatically adjust the humidification mode and humidification amount of the humidifier according to actual needs in different time periods. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an air treatment system and a control method thereof, which can enable the humidification device to automatically adjust the humidification mode and humidification amount of the humidification device according to actual needs in different time periods, so as to continuously maintain the indoor humidity comfort with high control accuracy.

[0004] A first aspect of the present invention provides a control method for an air treatment system, the system comprising:

[0005] a humidification unit, which adjusts the humidity of the air;

[0006] a control unit for adjusting a humidification mode of the humidification unit according to a preset period of time,

[0007] The control method comprises the following steps:

[0008] During the first preset period, the humidifying unit performs a first humidifying mode, and during the second preset period, the humidifying unit performs a second humidifying mode.

[0009] The humidification amount of the first humidification mode is less than that of the second humidification mode. The appropriate humidification mode can be selected according to different time periods. The humidification style is diverse and the water level can be adjusted according to actual needs to ensure the indoor humidity comfort while saving water.

[0010] Preferably, during the third preset period, the humidifying unit is controlled to perform a third humidifying mode, which is a silent mode, so as to reduce noise and ensure humidification performance while maintaining silence.

[0011] Preferably, the air treatment system comprises a detection unit. When the detection unit detects that there is someone in the room, the control unit controls the humidification unit to execute the second humidification mode to ensure the indoor humidity comfort level.

[0012] Preferably, the air treatment system includes a plurality of air outlets, and the plurality of air outlets deliver humidified air to a plurality of areas respectively. According to the detection result of the detection unit, the control unit controls the opening of the air outlets corresponding to the areas where people are present, and delivers humidified air to the areas where people are present. This can not only achieve efficient humidification, but also save energy.

[0013] Preferably, the detection unit detects the indoor temperature and / or humidity, and within the first preset period and the second preset period, the control unit adjusts the humidification amount of the humidification unit according to the operating time of the humidification unit and the detection result of the detection unit, thereby improving the control accuracy, accurately adjusting the indoor humidity, and ensuring the user's comfort.

[0014] Preferably, the air treatment system includes a ventilation unit, the detection unit detects the indoor air quality, and the control unit adjusts the operation mode of the ventilation unit according to the detection result to improve the indoor air quality and the indoor air comfort.

[0015] Preferably, the detection unit detects indoor air humidity and air quality.

[0016] The control unit compares the air humidity detection value with the humidity preset range, and compares the indoor air quality detection value with the air quality preset value.

[0017] When the indoor air quality detection value is greater than or equal to the preset air quality value, and the air humidity detection value is within the preset humidity range, the control unit controls the ventilation unit to operate preferentially;

[0018] When the indoor air quality detection value is less than the air quality preset value, and the air humidity detection value is less than the minimum value of the humidity preset range, the control unit controls the humidification unit to operate preferentially.

[0019] A second aspect of the present invention provides an air treatment system, comprising:

[0020] a humidification unit, which adjusts the humidity of the air;

[0021] a control unit for adjusting a humidification mode of the humidification unit according to a preset period of time,

[0022] in,

[0023] The humidification mode of the humidification unit includes a first humidification mode and a second humidification mode, the humidification amount of the first humidification mode is less than the humidification amount of the second humidification mode,

[0024] In the first preset period, the control unit controls the humidification unit to perform the first humidification mode, and in the second preset period, the control unit controls the humidification unit to perform the second humidification mode. According to different time periods, the appropriate humidification mode is selected, and the humidification style is diverse. The water level can be adjusted according to actual needs to ensure indoor humidity comfort while saving water.

[0025] Preferably, the humidification mode further includes a third humidification mode, which is a silent mode. During a third preset period of time, the control unit controls the humidification unit to execute the third humidification mode.

[0026] Preferably, the air treatment system further comprises an air supply unit, which delivers humidified air to the room, and in the third humidification mode, the air supply unit operates at a low speed, which can reduce noise and ensure humidification performance while maintaining silence.

[0027] Preferably, the air handling system further comprises a detection unit capable of detecting the air environment and personnel activities.

[0028] Preferably, the air treatment system further comprises a plurality of air outlets, and the plurality of air outlets respectively deliver humidified air to a plurality of areas, which can not only achieve efficient humidification but also save energy.

[0029] Preferably, the air handling system further comprises a ventilation unit, which introduces fresh air from the outside and exhausts the indoor air.

[0030] Preferably, the air treatment system further comprises an instruction unit, which is used to transmit the user's control instruction to the control unit, and the control unit executes the user's control instruction.

[0031] Preferably, the humidifying unit comprises a humidifying component,

[0032] In the first humidification mode, the water level of the humidification component is at the middle water level.

[0033] In the second humidification mode, the water level of the humidification component is at a high water level.

[0034] In the third humidification mode, the water level of the humidification component is continuously at a high water level.

[0035] The air treatment system and control method thereof of the present invention can adjust the humidification mode and humidification amount of the humidification equipment according to actual needs in different time periods, improve the indoor environment, enhance the comfort of the indoor environment, and reduce the infectivity of pathogens. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings used in the embodiments of the present application are briefly introduced below.

[0037] Figure 1 A schematic diagram of an air treatment system according to an embodiment of the present invention;

[0038] Figure 2 A system schematic diagram of an air treatment system according to another embodiment of the present invention;

[0039] Figure 3 A system schematic diagram of an air treatment system according to another embodiment of the present invention;

[0040] Figure 4 A schematic diagram of a ventilation unit according to a specific embodiment of the present invention;

[0041] Figure 5 is a schematic diagram of a humidifying unit according to a specific embodiment of the present invention;

[0042] Figure 6 A flowchart of an air handling system control method according to a specific embodiment of the present invention;

[0043] Figure 7 A flow chart of an air handling system control method according to another specific embodiment of the present invention;

[0044] Figure 8 A flow chart of an air handling system control method according to another specific embodiment of the present invention;

[0045] Fig. 9 A flow chart of an air handling system control method according to another specific embodiment of the present invention;

[0046] Fig.10 The present invention is a flowchart of an air handling system control method according to another specific embodiment of the present invention.

[0047] Reference numerals:

[0048] 100- Air handling system;

[0049] 1- Ventilation unit 1;

[0050] 11-air inlet, 12-air supply outlet, 13-air return outlet, 14-air exhaust outlet;

[0051] 2- Humidification unit;

[0052] 21-humidification component, 22-water tank, 23-heating component, 24-air inlet, 121-air outlet; 3-detection unit;

[0053] 4- Control unit;

[0054] 5- Air conditioning unit;

[0055] 51-Refrigerant circuit;

[0056] 6- air distribution module;

[0057] 7-air outlet;

[0058] 8-Instruction unit;

[0059] 9-air supply unit;

[0060] 140-air pipeline;

[0061] 141-air pipeline;

[0062] 150-Air valve. DETAILED DESCRIPTION

[0063] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0064] In order to improve the indoor air quality, the present invention proposes an air treatment system and a control method for the air treatment system. Through the control system, the humidification mode and humidification amount of the humidification device are adjusted according to actual needs in different time periods, thereby improving the indoor dry environment, enhancing the comfort of the indoor environment, and reducing the infectivity of pathogens.

[0065] Figure 1 A schematic diagram of an air treatment system according to an embodiment of the present invention.

[0066] like Figure 1 As shown, an air treatment system 100 according to an embodiment of the present invention includes: a ventilation unit 1, a humidification unit 2, a detection unit 3 and a control unit 4.

[0067] The air handling system 100 also includes an air conditioning unit 5 , a wind box 6 , a plurality of air supply ports 7 , a command unit 8 , an air supply unit 9 , and a plurality of air valves 150 .

[0068] exist Figure 1 In the figure, the solid lines between units, modules or devices represent the refrigerant circuit 51; the pipes with arrows connecting the units, modules or devices are air pipes 140, 141; the dotted lines between units, modules or devices represent communication connections, which can be wired connections or wireless connections.

[0069] The ventilation unit 1 and the humidification unit 2 are sequentially arranged on the air supply path, the air distribution box 6 is connected to the humidification unit 2, the air humidified by the humidification unit 2 is sent into the air distribution box 6, and the multiple air outlets of the air distribution box 6 are respectively connected to the multiple air supply outlets 7, and the multiple air supply outlets 7 are located in multiple areas of the room, for example, multiple rooms, and supply air to the multiple areas respectively.

[0070] The ventilation unit 1 is used to introduce air. The ventilation unit 1 is provided with an air supply path for introducing fresh air and an exhaust path for exhausting indoor dirty air. An internal circulation path for circulating indoor air can also be provided. The internal circulation mode is adopted to simply circulate the indoor air. A paper heat exchanger is usually provided in the ventilation unit 1. The paper heat exchanger is connected to the air supply path and the exhaust path respectively. During ventilation, the introduced fresh air and the exhausted air are heat exchanged through the paper heat exchanger; the ventilation unit 1 may not be provided with a paper heat exchanger. In order to ensure the cleanliness of the air finally delivered to the room, a filter element can also be provided on the air supply path and the internal circulation path, for example, to filter dust in the air, specific chemical components in the air, specific pathogens in the air, etc. Dust includes, for example, pollen, sand, inhalable particulate matter (PM2.5, PM10), etc., and specific chemical components include carbon dioxide (CO2), formaldehyde, odorous substances, etc.; thereby improving the air quality.

[0071] The humidifying unit 2 is a unit for adjusting the humidity of the air flowing through the unit. The air is humidified by the humidifying unit 2, so that the air discharged by the humidifying unit 2 has a certain humidity, thereby improving the dry environment in the room and enhancing the comfort of the indoor environment.

[0072] The air distribution module 6 is connected to the humidification unit 2, and the air humidified by the humidification unit 2 is sent to the air distribution module 6. The air distribution module 6 has multiple air outlets 61. Multiple air valves 150 are respectively arranged at the multiple air outlets 61 of the air distribution module 6, and are respectively connected to the air pipeline 140. The air pipeline 140 is connected to multiple air supply ports 7, and the multiple air supply ports 7 are located in multiple areas of the room to supply air to multiple areas respectively. All the air outlets 61 can be used, and some of the air outlets 61 can also be used as needed.

[0073] The number of the air outlets 61 can be designed according to actual needs. The ratio of the air output by the multiple air outlets 61 can be set according to actual needs, for example, the air flow rates of the air outlets 61 are the same or different.

[0074] The air pipeline 140 is an air inlet pipe, and each air pipeline 140 corresponds to a different indoor area.

[0075] For example, Figure 1 As shown, an air duct 141 serving as a return air duct may also be provided to centrally return air to each indoor space or each area and discharge the air to the outdoors.

[0076] Figure 2 FIG. 1 is a system schematic diagram of an air treatment system 101 according to another embodiment of the present invention.

[0077] like Figure 2 As shown, the structure of the air handling system 101 is Figure 1 The structure of the air handling system 100 in FIG. 1 is substantially the same as that of the air handling system 101 , except that the air handling system 101 does not have an air distribution module 6 , and a plurality of air valves 150 are disposed in the air pipeline 140 . Figure 2 As shown, the humidifying unit 2 has a plurality of air outlets 121 , and a plurality of air valves 150 are respectively disposed at the plurality of air outlets 121 to independently control the humidified air flow output from each air outlet 121 .

[0078] like Figure 2 As shown, the humidifying unit 2 has a plurality of air outlets 121, and the air outlets 121 are respectively connected to the air pipelines 140. For example, all the air outlets 121 can be used, or part of the air outlets 121 can be used as needed. The number of the air outlets 121 can be designed according to actual needs.

[0079] Figure 3 FIG. 1 is a system schematic diagram of an air treatment system 102 according to another embodiment of the present invention.

[0080] like Figure 3 As shown, the structure of the air handling system 102 is Figure 2 The structure of the air handling system 101 in the embodiment is substantially the same as that of the air handling system 101 , but the difference from the air handling system 101 is that the multiple air valves 150 in the air handling system 102 are respectively arranged at the air outlets of the multiple air pipelines 140 .

[0081] Figure 2 and Figure 3 In, with Figure 1 The same parts can be referred to in Figure 1 The relevant instructions will not be repeated.

[0082] exist Figure 2 and Figure 3 In the embodiment of, the indoor area, the air supply port 7, the air duct 140 and the air valve 150 are corresponding. By controlling the air valve 150 corresponding to the indoor space, the flow rate of the humidified air entering the indoor area can be independently controlled, so that the air humidity of the indoor area can be independently adjusted. Therefore, by respectively arranging air valves inside or at the air outlets of multiple air ducts, the valves can be used to control the humidified air input to different indoor areas respectively, so that the air humidity of different indoor areas can be independently adjusted, and refined humidity adjustment for different indoor areas can be achieved to meet the needs of different users, thereby improving the user's comfort and usage experience. Figure 1 Compared with the embodiment of the present invention, since the air distribution module 6 is not provided, the system structure can be further simplified.

[0083] The detection unit 3 is a unit for detecting air environment and human activities, including one or more sensors of temperature and humidity sensors, CO2 sensors, PM2.5 sensors, VOC sensors, TVOC sensors, formaldehyde sensors, and odor sensors, and can detect indoor air humidity values, outdoor air humidity values, indoor air quality, outdoor air quality, and whether there are human activities, etc. The detection unit 3 for detecting indoor air parameters can be integrated in a housing, independently set at any position of the detected space, or set in the housing of the ventilation unit.

[0084] The control unit 4 is a control center of the air treatment system 100 , and can adjust the humidification mode of the humidification unit 2 according to a preset period.

[0085] The control unit 4 can also adjust the humidification mode of the humidification unit 2 and the operation mode of the ventilation unit 1 according to the detection result of the detection unit 3. The control unit 4 includes a remote controller, a wire controller, and a control terminal (a mobile phone, a computer, etc.); it can be integrated or separated (different devices are controlled by different control elements, for example, the humidification unit 2 and the ventilation unit 1 share a wire controller, and the air conditioning unit 5 has an independent air conditioning controller).

[0086] The command unit 8 transmits the user's control command to the control unit 4, and the control unit 4 executes the user's control command. The command unit 8 can be a control panel, a remote control device, or a remote operation terminal connected via a network, such as a smart device such as a mobile phone.

[0087] The air treatment system 100 further includes an air supply unit 9, which delivers humidified air to the room. The air supply unit 9 may be a fan disposed on an air supply pipeline, which delivers the humidified air to the room.

[0088] Figure 4 It is a schematic diagram of a ventilation unit 1 according to a specific embodiment of the present invention.

[0089] like Figure 4 As shown, the ventilation unit 1 is provided with an air inlet 11, an air supply port 12, an air return port 13 and an air exhaust port 14. The air inlet 11 introduces air from the outside to form fresh air. The air supply port 12 is connected to the humidification unit 2. The fresh air is sent to the humidification unit 2 through the air supply port 12, forming the fresh air introduction mode P1 of the ventilation unit 1, and the fresh air is humidified before being sent into the room; the return air port 13 introduces air from the room and exhausts it to the outside through the air exhaust port 14, forming the exhaust mode P2. In addition, after the return air port 13 introduces indoor air from the room, the indoor air processed by the ventilation unit 1 can also flow back to the room through the air supply port 12, forming the internal circulation mode P3.

[0090] The return air vent 13 may also be provided with a detection unit 3. According to the arrangement of the air handling system 100, one return air vent 13 may be provided to centrally introduce indoor air, or multiple return air vents 13 may be provided to be respectively provided in multiple areas of the room to respectively introduce air into each area.

[0091] Figure 5 It is a schematic diagram of a humidifying unit 2 according to a specific embodiment of the present invention.

[0092] like Figure 5 As shown, an air flow path F1 is formed between the air inlet 24 and the air outlet 121 of the humidifying unit 2. A heating component 23 and a humidifying component 21 are sequentially arranged from the air inlet to the air outlet. The humidifying component 21 is provided with a moisture permeable membrane (not shown). A certain amount of water is stored in the humidifying component 21. When humidifying, the air passes through the moisture permeable membrane in the humidifying component 21, taking away the water molecules therein, so that the air is humidified. The moisture permeable membrane material is composed of quaternary ammonium salt compounds with antibacterial effects, so the material itself has antibacterial properties, which can ensure that the moisture permeable membrane will not breed bacteria, ensuring the provision of clean humidified air. Due to the small pores of the moisture permeable membrane, scale on the water side will not enter the humidification air path.

[0093] The heating assembly 23 is a heat exchanger, and is connected to the air conditioning unit 5 via a refrigerant pipe to form a refrigerant circuit 51. The heating assembly 23 may also be an electric heater.

[0094] The humidifying unit 2 supplies water to the humidifying assembly 21 through a water storage component. The water storage component may be a water tank 22 disposed in the humidifying unit 2 or a water supply pipe connected to the outside.

[0095] When the water storage component is a water tank 22, the water tank 22 and the humidification component 21 are connected by a water pipe, and a water valve can be set in the pipeline to control the water supply from the water tank to the humidification component; the water valve can be a three-way valve, and the three-way valve can realize three states: the humidification component and the water tank are connected, the water tank is drained, and the humidification component is drained. The water tank 22 is set in the shell, and the water tank 22 is connected to the municipal water by a water pipe. Before the municipal water enters the water tank 22, a water inlet solenoid valve can be set to control the water inlet amount. Before the municipal water enters the water tank, it is connected to a water purification / soft water device to improve the cleanliness of the water and prevent the humidification component, water pipe, water tank and other equipment from scaling.

[0096] The humidification component 21 is connected to the water tank 22, and the tops are roughly flush. When the humidification component 21 is full of water, the water flow of the humidification component 21 is 100%. When the water level of the humidification component 21 is 100-88%, it is a high water level in the first height interval of the water level. When the water level of the humidification component 21 is 88%-72%, it is a middle water level in the second height interval of the water level. When the water level of the humidification component 21 is 72%-60%, it is a low water level in the third height interval. During the humidification process, if the water level is lower than the third height interval, a water replenishment alarm will be issued.

[0097] The water supply from the water storage component to the humidifying component 21 is adjustable. When the water supply to the humidifying component 21 is small, the moisture permeable membrane of the humidifying component 21 absorbs less water, the water level is low, and the humidifying component 21 is in the second height interval (medium water level). This can reduce the contact area between the air flowing through and the water, and reduce the humidification amount. At this time, the humidifying unit 2 is humidified at the medium water level. When the water level in the humidifying component 21 is low, it will affect the humidification effect of the humidifying unit 2, and water should be supplied to the humidifying component 21. When the water supply to the humidifying component 21 is large, the moisture permeable membrane of the humidifying component 21 absorbs more water, the water level is high, and the humidifying component 21 is in the first height interval (high water level). This can increase the contact area between the air flowing through and the water, and increase the humidification amount. At this time, the humidifying unit 2 is humidified at the high water level.

[0098] The humidifying unit 2 also includes a solenoid valve (not shown), which can adjust the amount of water supplied from the water storage component to the humidifying assembly 21. When the humidifying unit 2 is humidified at a high water level, the opening of the solenoid valve can be increased, and when the water level in the humidifying unit 2 is humidified, the opening of the solenoid valve can be reduced. The solenoid valve can also be opened and closed intermittently. When water needs to be supplied to the humidifying assembly 21, the solenoid valve is opened, and when there is enough water in the humidifying assembly 21, the solenoid valve can be closed. In order to continuously supply water to the humidifying assembly 21, the solenoid valve can also be continuously opened, and the amount of water supplied can be adjusted by adjusting the opening of the solenoid valve.

[0099] When air flows through the moisture permeable membrane of the humidifying component 21, water molecules are taken out, thereby increasing the humidity of the air. When the humidifying component 21 has a higher water level, since the air and the water molecules in the moisture permeable membrane have a larger contact area, the humidification amount when the water level of the humidifying component 21 is in the second height interval is greater than the humidification amount when the water level of the humidifying component 21 is in the first height interval.

[0100] When adjusting the humidification mode of the humidification unit 2 , the control unit 4 can adjust the humidification amount of the humidification unit 2 by adjusting the water level of the humidification component 21 .

[0101] In the above embodiments, the humidification component 21 using a moisture permeable membrane for humidification is described in detail as an example. Of course, this is only an exemplary description. The present invention is not limited to moisture permeable membrane humidification, but is also applicable to humidification methods such as spray humidification and ultrasonic humidification.

[0102] In this embodiment, the control unit 4 pre-sets multiple operating time periods of the humidifying unit 2, such as daytime, outing, nighttime, lunch break, etc. In different preset time periods, the control unit 4 controls the humidifying unit 2 to perform different humidification modes. These operating time periods of the humidifying unit 2 can also be set according to the user's usage needs. For example, the user inputs the preset time period into the control unit 4 through the instruction unit 8.

[0103] The specific number of preset time periods is not particularly limited and can be set as needed. Hereinafter, three preset time periods are taken as an example for description, which are marked as a first preset time period T1, a second preset time period T2, and a third preset time period T3.

[0104] In the first preset time period T1, such as the daytime period, or the period when the user is out working, generally no one is active indoors (no one indoor period), the control unit 4 controls the humidification unit 2 to perform the first humidification mode. In the first humidification mode, the water level of the humidification component 21 is at the middle water level, the humidification amount is small, and water can be saved.

[0105] In the second preset period T2, for example, when going home from work or returning home from the outdoors, there are continuous activities indoors. At this time, in order to maintain the humidity, the control unit 4 controls the humidification unit 2 to perform the second humidification mode. In the second humidification mode, the water level of the humidification component 21 is at a high water level, increasing the humidification amount to ensure the indoor humidity comfort.

[0106] In the third preset time period T3, for example, when the indoor personnel are in a resting state, such as during a lunch break or a nighttime sleep period, the control unit 4 controls the humidification unit 2 to execute the third humidification mode. The third humidification mode is a silent mode. In silent mode, the water level of the humidification component 21 is continuously at a high water level, that is, the water level is kept at a high water level and basically does not drop. For this reason, the solenoid valve can be kept open for a long time and water replenishment can be continued. In silent mode, very high humidity is not required, so the opening of the solenoid valve can be appropriately adjusted to match the humidification amount. The solenoid valve is kept open for a long time to avoid frequent switching of water path components such as the solenoid valve, thereby avoiding the occurrence of noise, while maintaining the indoor humidity comfort level, keeping silent and not affecting the user's rest.

[0107] In the third humidification mode, the air supply unit 9 operates at a low speed, which can reduce noise and ensure humidification performance while maintaining silence.

[0108] The air treatment systems 100, 101, 102 of the present invention select appropriate humidification modes according to different time periods, have various humidification styles, and can adjust the water level according to actual needs, thereby ensuring indoor humidity comfort while saving water.

[0109] The present invention also provides a control method for the above-mentioned air treatment systems 100, 101, 102, which is described in detail below.

[0110] Figure 6 FIG. 1 is a flow chart of an air handling system control method 110 according to a specific embodiment of the present invention.

[0111] like Figure 6 As shown, the control method 110 includes the following steps:

[0112] Step S1, setting a plurality of preset time periods, for example, a first preset time period T1, a second preset time period T2 and a third preset time period T3.

[0113] The first preset time period T1 is, for example, a daytime period or a period when the user is out working, during which no one is active indoors (indoor no-person period).

[0114] The second preset time period T2, for example, there are continuous human activities in the room.

[0115] The third preset time period T3, for example, is when the indoor personnel are in a resting state, such as a lunch break or a nighttime sleep period.

[0116] Step S2, the control unit 4 determines the preset time period to which the current time t belongs, and adjusts the humidification mode of the humidification unit according to the preset time period to which the current time t belongs. When t belongs to the first preset time period T1, step S3 is executed; when t belongs to the second preset time period T2, step S4 is executed; when t belongs to the third preset time period T3, step S5 is executed.

[0117] In step S3 , when the current time t is within the first preset period T1 , the control unit 4 controls the humidifying unit 2 to perform the first humidifying mode.

[0118] In the first preset time period T1, there is no human activity in the room, and the control unit 4 controls the humidifying unit 2 to execute the first humidifying mode, so that the humidifying unit 2 operates at a medium water level, thereby ensuring the indoor humidity while saving water.

[0119] In step S4 , when the current time t is within the second preset period T2 , the control unit 4 controls the humidifying unit 2 to perform the second humidifying mode.

[0120] During the second preset period T2, there are continuous human activities indoors. To maintain humidity, the control unit 4 controls the humidifying unit 2 to execute the second humidifying mode, so that the humidifying unit 2 operates at a high water level to ensure indoor humidity comfort.

[0121] Step S5: when the current time t is within the third preset time period T3, the control unit 4 controls the humidifying unit 2 to execute the third humidifying mode, ie, the silent mode.

[0122] During the third preset time period T3, the indoor personnel are in a resting state, such as during a lunch break or a nighttime sleep period, and the control unit 4 controls the humidification unit 2 to execute the third humidification mode. The third humidification mode is a silent mode. In silent mode, the water level of the humidification component 21 is continuously at a high water level, that is, the water level is kept at a high water level and basically does not drop. For this reason, the solenoid valve can be kept open for a long time and water can be continuously replenished. In silent mode, very high humidity is not required, so the opening of the solenoid valve can be appropriately adjusted to match the humidification amount. The solenoid valve is kept open for a long time to avoid frequent switching of water path components such as the solenoid valve, thereby avoiding the occurrence of noise, while maintaining the indoor humidity comfort, keeping silent and not affecting the user's rest.

[0123] The control method 110 of the air treatment system of the present invention selects appropriate humidification modes according to different time periods, and the humidification styles are diverse. The water level can be adjusted according to actual needs to ensure indoor humidity comfort while saving water.

[0124] Figure 7 FIG. 1 is a flow chart of an air handling system control method 120 according to a specific embodiment of the present invention.

[0125] like Figure 7 As shown, in the control method 120, when determining within the first preset time period T1 or the second preset time period T2, it is further detected whether there is human activity in the room, and the humidification mode of the humidification unit 2 is controlled according to the determination result.

[0126] Description of steps S1 to S5 is omitted.

[0127] The control method 120 further includes the following steps:

[0128] Step S6, the detection unit 3 detects whether there is human activity in the room; when human activity is detected, step S7 is executed; when no human activity is detected, step S8 is executed.

[0129] In step S7, when the presence of a person is detected, the humidifying unit 2 is controlled to perform the second humidifying mode.

[0130] For example, in the first preset period T1, generally no one is active indoors, and the control unit 4 generally controls the humidification unit 2 to execute the first humidification mode, so that the humidification unit 2 operates at a medium water level to save water. However, when the user returns to the room in the first preset period T1, since the first humidification amount is relatively small, the humidity needs to be increased to ensure the indoor humidity comfort. The detection unit 3 detects the activities of people and the number of active people to control the humidification unit 2 to execute the second humidification mode and the humidification amount in the second humidification mode, thereby ensuring the indoor humidity comfort.

[0131] According to the detection result of the detection unit 3, when there is human activity in the room, the second humidification mode is executed first, rather than the time period. When the person leaves and the detection unit 3 continues to detect that there is no human activity in the room, the first humidification mode can be switched to execute according to the time of the first preset time period T1.

[0132] In step S8 , when no person is detected, the humidifying unit 2 is controlled to perform the first humidifying mode.

[0133] For example, in the second preset period T1, the control unit 4 controls the humidification unit 2 to execute the second humidification mode, so that the humidification unit 2 operates at a high water level to ensure the indoor humidity. However, when the indoor personnel go out in the second preset period T2, the detection unit 3 detects that there are personnel activities indoors, and controls the humidification unit 2 to execute the first humidification mode and the humidification amount in the first humidification mode to save water.

[0134] According to the detection result of the detection unit 3, when there is no human activity in the room, the first humidification mode is executed first, rather than the time period. When the person returns and the detection unit 3 detects that there is human activity in the room, the second humidification mode can be switched to execute according to the time of the second preset time period T1.

[0135] In one embodiment, the detection unit 3 detects multiple areas in the room respectively. When human activity is detected, the area where the human activity is located is determined. Based on the detection result of the detection unit 3, the control unit 4 controls the opening of the air supply vents 7 corresponding to the area where there are people, and delivers humidified air to the area where there are people.

[0136] For multiple areas in the room, such as rooms, usually not all rooms have people active, so humidified air can be supplied only to rooms where people are. When the detection unit 3 detects that there are people in a certain area (room), only the air supply vents 7 of the area are opened. This not only achieves efficient humidification but also saves energy.

[0137] Figure 8 FIG. 1 is a flow chart of an air handling system control method 130 according to a specific embodiment of the present invention.

[0138] like Figure 8 As shown, based on the control method 110, in the control method 130, when it is determined that the current time t is within the first preset time period T1 or the second preset time period T2, the control unit 4 controls the humidification unit 2 to execute the first humidification mode or the second humidification mode, and further detects the indoor temperature and / or humidity, and adjusts the humidification amount of the humidification unit 2 according to the judgment result.

[0139] Description of steps S1 to S5 is omitted.

[0140] The control method 130 further includes the following steps:

[0141] Step S9, the detection unit 3 detects the indoor temperature and / or humidity;

[0142] Step S10: the control unit 4 receives the indoor temperature C and humidity detection value H transmitted by the detection unit 3. N After that, judge the indoor temperature C and set the humidity detection value H N With humidity preset value H Y Make comparisons;

[0143] Humidity preset value H Y It can be set according to different usage requirements. Humidity preset value H Y It is a humidity value suitable for the indoor environment, which can be pre-set in the control logic of the control unit 4, or manually set by the user. As for the user's perceived comfort, the body feels comfortable when the relative humidity of the normal environment is 30%-60%; when the relative humidity of the environment is less than 30%, the human body feels uncomfortable, especially the dryness of the respiratory mucosa, which can easily cause coughing, etc.; when the relative humidity of the environment is greater than 60%, the human body feels uncomfortable, such as chest tightness, etc. For the indoor environment, if the indoor humidity is high for a period of time (more than 70%), it is easy to breed mold, bacteria, etc., which will damage the home environment and affect the health of users. The dew point temperature can be obtained by combining the indoor temperature, the air supply temperature of the air handling system, etc. When the dew point temperature is met, continuous humidification will form condensation; when the indoor humidity is greater than 80%, indoor condensation and air supply pipelines are prone to condensation.

[0144] Step S11 , adjusting the humidification amount of the humidification unit 2 according to the operation time of the humidification unit 2 and the detection result of the detection unit 3 .

[0145] The detection unit 3 detects the humidity detection value H of the indoor air N The detection unit 3 detects the indoor air humidity in real time and generates the detected air humidity detection value H N sent to the control unit 4.

[0146] The control unit 4 receives the humidity detection value H transmitted by the detection unit 3. N Then compare it with the humidity preset value H Y By comparison, it can be determined whether the current indoor humidity is maintained at a humidity comfort level suitable for the human body.

[0147] After the humidification unit 2 has been humidifying for a period of time, if the indoor humidity value reaches or exceeds the preset humidity value H Y , the humidification amount can be reduced. If the indoor humidity value has not reached the preset humidity value H Y range, the humidification amount can be increased.

[0148] For example, when the first preset period T1 is about to end and the second preset period T2 is about to begin, the person may return to the room quickly. At this time, the detection unit 3 detects the humidity detection value H of the indoor air. N The control unit 4 determines the operating time of the humidification unit 2 and the humidity detection value H N , control the humidification unit 2 to adjust the humidification amount to improve the indoor humidity comfort.

[0149] The detection unit 3 detects the indoor temperature C, and the control unit 4 controls the humidification unit 2 to adjust the humidification amount according to the operation time of the humidification unit 2 and the detection result of the indoor temperature C, so as to improve the indoor humidity comfort.

[0150] For example, the longer the humidification time of the humidification unit 2 is, the higher the indoor humidity will be. However, when the detected indoor temperature C is high, moisture is easily lost and the humidification effect will be reduced. When the first preset period T1 is about to end and the second preset period T2 is about to begin, the detection unit 3 can detect the indoor temperature C, and the control unit 4 controls the humidification unit 2 to adjust the humidification amount according to the operation time of the humidification unit 2 and the indoor temperature C to improve the indoor humidity comfort.

[0151] In this embodiment, whether the humidifying unit 2 is executing the first humidifying mode or the second humidifying mode, according to the indoor temperature C and the indoor humidity detection value H N To adjust the humidification amount of the humidification unit 2, improve the control accuracy, accurately adjust the indoor humidity, and ensure user comfort.

[0152] Fig. 9 Flow chart of an air handling system control method 140 according to a specific embodiment of the present invention.

[0153] like Fig. 9 As shown, in the control method 140, based on the control method 110, the indoor air quality is further detected, and the operation mode of the ventilation unit 1 is adjusted according to the judgment result.

[0154] Description of steps S1 to S5 is omitted.

[0155] The control method 140 further includes the following steps:

[0156] Step S12, the detection unit 3 detects the indoor air quality and obtains the indoor air quality detection value Q N .

[0157] Indoor air quality test value Q N Indicates the degree of indoor air pollution, which may include carbon dioxide (CO2) concentration, inhalable particulate matter (PM2.5) concentration, etc.

[0158] Step S13, the control unit 4 detects the indoor air quality value Q detected by the detection unit 3 N The air quality preset value Q Y When the indoor air quality detection value Q N Greater than or equal to the preset air quality value Q Y When the indoor air quality detection value Q N Less than the preset air quality value Q Y , execute step S15.

[0159] In step S14, when the indoor air quality detection value Q N Greater than or equal to the preset air quality value Q Y When the concentration of carbon dioxide (CO2) exceeds the standard, the indoor air quality deteriorates. Usually, the comfortable range of CO2 concentration is 400-800ppm. When the CO2 concentration is greater than 1000ppm, fresh air needs to be introduced. At this time, the control unit 4 controls the ventilation unit 1 to execute the fresh air introduction mode P1 or the exhaust mode P2.

[0160] In step S15, when the indoor air quality detection value Q N Less than the preset air quality value Q Y When the indoor CO2 concentration is within a comfortable range, the ventilation unit 1 is controlled to execute the internal circulation mode P3.

[0161] In this embodiment, after the humidification mode of the humidification unit 2 is determined, the operation mode of the ventilation unit 1 is adjusted according to the detection result of the indoor air quality, so as to improve the indoor air quality and enhance the indoor air comfort.

[0162] Fig.10 A flowchart of an air handling system control method 150 according to a specific embodiment of the present invention.

[0163] like Fig.10 As shown, in the control method 150, the indoor air humidity and air quality are detected, and the priority operation order of the humidification unit 2 and the ventilation unit 1 is determined according to the judgment result.

[0164] The control method 150 further includes the following steps:

[0165] Step S16, the detection unit 3 detects the humidity detection value H of the indoor air N , and detect the indoor air quality to obtain the indoor air quality detection value Q N .

[0166] Step S17, the control unit 4 converts the humidity detection value H detected by the detection unit 3 into N With humidity preset range H S The indoor air quality detection value Q detected by the detection unit 3 is compared.N The air quality preset value Q Y Make a comparison.

[0167] Humidity preset range H S The relative humidity range is suitable for the indoor environment, such as 30%-60% relative humidity in a normal environment.

[0168] When the indoor air quality detection value Q N Greater than or equal to the preset air quality value Q Y , and the air humidity detection value H N In the humidity preset range H S When the indoor air quality detection value Q N Less than the preset air quality value Q Y , and the air humidity detection value H N Less than the humidity preset range H S When the value is the minimum, execute step S19.

[0169] In step S18 , the control unit 4 controls the ventilation unit 1 to operate preferentially.

[0170] When the indoor air quality detection value Q N Greater than or equal to the preset air quality value Q Y When the concentration of carbon dioxide (CO2) exceeds the standard, the indoor air quality decreases. At this time, the ventilation unit 1 can be operated first to improve the indoor air quality. The humidification unit 2 can be operated with a reduced humidification amount, or not operated. Alternatively, the ventilation unit 1 can be operated for a certain period of time, and when the indoor air quality reaches a comfortable range, the humidification unit 2 can be controlled to operate, thereby improving the air quality and air humidity at the same time.

[0171] In step S19 , the control unit 4 controls the humidifying unit 2 to operate preferentially.

[0172] When the indoor air quality detection value Q N Less than the preset air quality value Q Y When the indoor CO2 concentration is within the appropriate range. Since the air humidity detection value is less than the humidity preset range H S The indoor air is relatively dry, so the humidification unit 2 can be operated first to ensure the indoor air humidity comfort. The ventilation unit 1 can reduce the amount of fresh air introduced, or not operate, or the humidification unit 2 can operate for a certain period of time, and the indoor air humidity rises to the preset humidity range H. S After that, the ventilation unit 1 is controlled to operate, and the air quality and air humidity are also controlled.

[0173] In one embodiment, after the user transmits the control instruction to the control unit 4 through the instruction unit 8, the control unit 4 executes the user's control instruction first to ensure the user's needs.

[0174] The air treatment system 100 and control methods 110, 120, 130, 140, 150 of the present invention adjust the humidification mode and the fresh air volume according to the real-time air environment, realize the joint regulation between humidification and ventilation, and realize stepless regulation of the humidification amount in each gear, with high control accuracy.

[0175] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for an air treatment system, the system comprising: a humidification unit, which adjusts the humidity of the air; a control unit for adjusting a humidification mode of the humidification unit according to a preset period of time, The control method is characterized by comprising the following steps: In a first preset period of time, the humidifying unit performs a first humidifying mode, and in a second preset period of time, the humidifying unit performs a second humidifying mode. The humidification amount of the first humidification mode is smaller than the humidification amount of the second humidification mode.

2. The control method according to claim 1, characterized in that: The humidifying unit comprises a humidifying component, In the first humidification mode, the water level of the humidification component is at a medium water level. In the second humidification mode, the water level of the humidification component is at a high water level.

3. The control method according to claim 2, characterized in that: The humidifying unit comprises a humidifying component, In a third preset period of time, the humidifying unit is controlled to perform a third humidifying mode, The third humidification mode is a silent mode. In the third humidification mode, the water level of the humidification component is continuously at a high water level.

4. The control method according to claim 1, characterized in that: The air treatment system comprises a detection unit, During the first preset time period and the second preset time period, the detection unit detects whether there is someone in the room. When the detection unit detects that there is someone in the room, the control unit controls the humidification unit to execute the second humidification mode.

5. The control method according to claim 4, characterized in that: When the detection unit detects that there is no one in the room, the control unit controls the humidification unit to perform a first humidification mode.

6. The control method according to claim 4, characterized in that: The system includes a plurality of air outlets, and the plurality of air outlets respectively deliver humidified air to a plurality of areas. According to the detection result of the detection unit, the control unit controls the opening of the air supply outlet corresponding to the area where people are present, so as to deliver humidified air to the area where people are present.

7. The control method according to claim 4, characterized in that: The detection unit detects the indoor temperature and / or humidity. During the first preset period and the second preset period, the control unit adjusts the humidification amount of the humidification unit according to the operation time of the humidification unit and the detection result of the detection unit.

8. The control method according to claim 4, characterized in that: The system comprises a ventilation unit, The detection unit detects the indoor air quality, and the control unit adjusts the operation mode of the ventilation unit according to the detection result.

9. The control method according to claim 8, characterized in that: The detection unit detects the indoor air humidity. The control unit compares the air humidity detection value with the humidity preset range, and compares the indoor air quality detection value with the air quality preset value, When the indoor air quality detection value is greater than or equal to the preset air quality value, and the air humidity detection value is within the preset humidity range, the control unit controls the ventilation unit to operate preferentially; When the indoor air quality detection value is less than the preset air quality value, and when the air humidity detection value is less than the minimum value of the preset humidity range, the control unit controls the humidification unit to operate preferentially.

10. The control method according to any one of claims 1 to 9, characterized in that: The air treatment system further comprises an instruction unit, which is used to transmit a user's control instruction to the control unit, and the control unit preferentially executes the control instruction transmitted by the instruction unit.

11. An air treatment system, characterized in that: include: a humidification unit, which adjusts the humidity of the air; a control unit for adjusting a humidification mode of the humidification unit according to a preset period of time, in, The humidification mode of the humidification unit includes a first humidification mode and a second humidification mode, the humidification amount of the first humidification mode is smaller than the humidification amount of the second humidification mode, In a first preset period, the control unit controls the humidifying unit to perform the first humidifying mode, and in a second preset period, the control unit controls the humidifying unit to perform the second humidifying mode.

12. The air treatment system according to claim 11, characterized in that The humidification mode also includes a third humidification mode, and the third humidification mode is a silent mode. During a third preset period, the control unit controls the humidifying unit to perform a third humidifying mode.

13. The air treatment system according to claim 12, characterized in that The air supply unit is also included, which delivers humidified air to the room. In the third humidification mode, the air supply unit operates at a low speed.

14. The air treatment system according to claim 13, characterized in that The device also includes a detection unit, which detects at least the humidity and temperature of the air environment and the activities of indoor personnel.

15. The air treatment system according to claim 14, characterized in that The utility model comprises a plurality of air supply outlets, and the plurality of air supply outlets respectively deliver humidified air to a plurality of areas.

16. The air treatment system according to claim 14, characterized in that It also includes a ventilation unit, which introduces fresh air from the outside and exhausts the indoor air.

17. The air treatment system according to any one of claims 11 to 16, characterized in that: It also includes an instruction unit, which is used to transmit the user's control instruction to the control unit, and the control unit executes the user's control instruction.

18. The air treatment system according to claim 11, characterized in that In the first humidification mode, the water level of the humidification component is at a medium water level. In the second humidification mode, the water level of the humidification component is at a high water level.

19. The air treatment system according to any one of claims 12 to 16, characterized in that: The humidifying unit comprises a humidifying component, In the first humidification mode, the water level of the humidification component is at a medium water level. In the second humidification mode, the water level of the humidification component is at a high water level, In the third humidification mode, the water level of the humidification component is continuously at a high water level.

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