Air treatment system and control method of air treatment system

Abstract

The invention provides an air treatment system and a control method of the air treatment system. The air volume of the fan of the air supply module can be reduced under the conditions that the fan of the air supply module operates at the preset air volume and the air quality data of the indoor space meets the first preset condition, so that the air quality of the indoor space can be guaranteed, noise generated during operation of the air treatment system can be reduced, and user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of air treatment, and in particular to an air treatment system and a control method of the air treatment system. Background Art

[0002] With the continuous progress of science and technology and the improvement of living standards, people have higher and higher requirements for living environment, among which indoor air quality is an important indicator of living environment. For example, when the air quality is poor, it is necessary to purify the air through air supply equipment, or to adjust the humidity of the air through humidity control equipment, etc.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0004] The inventors have found that in the existing air handling system, the air supply device is prone to generate noise when in operation. In particular, when other devices (e.g., dehumidification devices) are arranged on the air path of the air supply device, the noise generated by the air handling system will be greater due to the increased impedance in the air path, affecting the user experience.

[0005] In order to solve at least one of the above problems, the embodiments of the present application provide an air treatment system and a control method of the air treatment system. When the fan of the air supply module is running at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module can be reduced, thereby ensuring the air quality of the indoor space and reducing the noise generated when the air treatment system is running, thereby improving the user experience.

[0006] According to a first aspect of an embodiment of the present application, an air treatment system is provided, wherein the system includes: an air supply module, which supplies air to an indoor space, the air supply module including a fan; a humidity control module, which is arranged on the air path output side of the air supply module, and is used to adjust the humidity of the air output by the air supply module; wherein, when the fan of the air supply module operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module is reduced.

[0007] According to a second aspect of an embodiment of the present application, a control method for an air treatment system is provided, wherein the air treatment system comprises: an air supply module, which supplies air to an indoor space, the air supply module comprising a fan; a humidity control module, which is arranged on the air path output side of the air supply module, and is used to adjust the humidity of the air output by the air supply module; the method comprises: when the fan of the air supply module is operating at a preset air volume and the air quality data of the indoor space meets a first preset condition, reducing the air volume of the fan of the air supply module.

[0008] One of the beneficial effects of the embodiments of the present application is that in an air treatment system, when the fan of the air supply module is operating at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module is reduced, thereby ensuring the air quality of the indoor space and reducing the noise generated during the operation of the air treatment system, thereby improving the user experience.

[0009] With reference to the following description and accompanying drawings, the specific embodiments of the present application are disclosed in detail, indicating the way in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope. Within the scope of the spirit and clauses of the appended claims, the embodiments of the present application include many changes, modifications and equivalents.

[0010] Feature information described and illustrated for one embodiment may be used in one or more other embodiments in the same or similar manner, combined with feature information in other embodiments, or replace feature information in other embodiments.

[0011] It should be emphasized that the term "include / comprises" when used herein refers to the existence of characteristic information, integers, steps or components, but does not exclude the existence or addition of one or more other characteristic information, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Many aspects of the present application may be better understood with reference to the following drawings. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present application. For the convenience of illustrating and describing some parts of the present application, corresponding parts in the drawings may be enlarged or reduced. The elements and feature information described in one drawing or one embodiment of the present application may be combined with the elements and feature information shown in one or more other drawings or embodiments. In addition, in the drawings, similar reference numerals represent corresponding components in several drawings and may be used to indicate corresponding components used in more than one embodiment.

[0013] In the attached picture:

[0014] Figure 1 is a schematic diagram of an implementation of an air treatment system of an embodiment of the present application;

[0015] Figure 2 is a schematic diagram of another implementation of the air treatment system of an embodiment of the present application;

[0016] Figure 3 is a flow chart of an implementation method of a control method for an air treatment system according to an embodiment of the present application;

[0017] Figure 4 It is a flow chart of another implementation of the control method of the air treatment system of the embodiment of the present application. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present application will be described below with reference to the accompanying drawings.

[0019] Example 1

[0020] Embodiment 1 of the present application provides an air treatment system.

[0021] Figure 1 Schematic diagram of an implementation of the air treatment system of Example 1 of the present application. Figure 1 In the figure, the pipes with arrows connecting modules or devices are air pipes; the solid lines between modules or devices represent refrigerant pipes; and the dotted lines between modules or devices represent communication connections, which can be wired connections or wireless connections.

[0022] like Figure 1 As shown, the air treatment system 100 includes an air supply module 110 and a humidity control module 120. The air supply module 110 supplies air to the indoor space and includes a fan 111. The humidity control module 120 is arranged at the air path output side of the air supply module 110 to adjust the humidity of the air output by the air supply module 110.

[0023] When the fan 111 of the air supply module 110 operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan 111 of the air supply module 110 is reduced.

[0024] In some embodiments, the air supply module 110 includes at least one of a fresh air processing device, a full heat exchange device (for example, with or without an internal circulation function), and a ventilation device (for example, with or without an internal circulation function).

[0025] like Figure 1 As shown, in the air supply module 110, OA represents the outdoor air inlet (air inlet, air inlet), EA represents the outdoor exhaust outlet (exhaust outlet, air outlet), SA represents the indoor air supply outlet (air supply outlet), and RA represents the indoor return air outlet (air return outlet).

[0026] The fan 111 of the air supply module 110 is used to form an airflow, thereby introducing air into the indoor space.

[0027] In some embodiments, the air supply module 110 may include a purification unit for purifying air. The purification unit may, for example, adjust the concentration of the corresponding air components introduced into the indoor space. For example, reduce at least one of the concentration of carbon dioxide in the air, the concentration of fine particulate matter (PM2.5), the concentration of inhalable particulate matter (PM10), the concentration of volatile organic compounds (VOC), the concentration of nitrogen oxides, and the concentration of ozone. The present application is not limited thereto, and the purification unit may also be provided in the humidity control module 120, etc.

[0028] In addition, in some embodiments, the air supply module 110 may further include a fan for exhausting air to the outside and a total heat exchanger. The total heat exchanger can adjust the temperature of the introduced outdoor air, thereby making the temperature of the air delivered to the indoor space within an appropriate range, thereby further improving the user experience.

[0029] In some embodiments, the air supply module 110 may have an internal circulation mode and an external circulation mode.

[0030] The internal circulation mode does not supply outdoor air to the indoor space, but returns the air returned from the indoor space to the indoor space. For example, in the internal circulation mode, air circulates between SA and RA.

[0031] The external circulation mode includes supplying outdoor air to the indoor space while exhausting the return air from the indoor space to the outdoor space, and performing full heat exchange between the outdoor air and the indoor air. For example, in the external circulation mode, air enters from OA and is exhausted from SA, and then enters from RA and is exhausted from EA.

[0032] In some embodiments, the air supply module 110 may not have an internal circulation function. For example, air enters from OA and is discharged from SA, and then enters from RA and is discharged from EA.

[0033] like Figure 1 As shown, the humidity control module 120 is disposed on the air path output side of the air supply module 110, for example, Figure 1 The side where the SA is located.

[0034] In some embodiments, the humidity control module 120 has the function of adjusting the humidity of the air. For example, the humidity control module 120 can humidify the air and / or dehumidify the air.

[0035] The humidity control module 120 may include at least one of a humidification module and a dehumidification module. The humidity control module 120 may switch to use a humidification module or a dehumidification module as needed.

[0036] In some embodiments, the humidification module may be a humidification module based on various humidification principles.

[0037] For example, the humidification module humidifies based on waterless humidification. The moisture in the air is adsorbed by hygroscopic materials. The air absorbs moisture through the hygroscopic sector of the humidification wheel. The humidification wheel then dehumidifies through the dehumidification zone. The hot and humid air is sent into the room through a fan.

[0038] For another example, the humidification module performs humidification based on spray humidification, and the spray humidification directly inputs water vapor into the room through the action of the spray head.

[0039] For another example, the humidification module performs humidification based on steam humidification. Steam humidification is achieved by separating the steam and water in the saturated steam, and then the dry steam enters the nozzle through a regulating valve and is ejected from the nozzle hole with a silencer metal mesh, thereby achieving humidification of the air.

[0040] For another example, the humidification module performs humidification based on a wet film, which includes a humidification unit (a water tank and a wet film). The water in the water tank flows into the wet film, and the wet film absorbs water to form a uniform water film. When dry air passes through the wet film, the water molecules fully absorb the heat in the air and vaporize and evaporate, thereby increasing the humidity of the air and forming humid air.

[0041] In some embodiments, when the humidification module is based on wet film humidification, the humidification device may further include a temperature regulating unit. The temperature regulating unit may be located on the upstream side of the humidification unit (water storage tank and wet film) and is used to regulate the temperature of the introduced air, such as heating it. The heated air is transported to the humidification unit, which can improve the humidification efficiency of the humidification unit.

[0042] For temperature control units based on different principles, the ways in which they adjust the temperature may be different.

[0043] For example, the temperature control unit can be based on the heat exchange principle to adjust the temperature, and the temperature control capacity (temperature) can be adjusted by adjusting the opening of the valve of the refrigerant pipeline in the heat exchange module. For example, the temperature control capacity can be improved by increasing the opening of the valve (e.g., electric valve).

[0044] For another example, the temperature control unit performs temperature control based on the electric auxiliary heating principle, and its temperature control capability can be adjusted by adjusting the output power of the electric auxiliary heating element.

[0045] In some embodiments, the humidification capacity of the humidification module can be adjusted according to demand. For example, in the case where the humidification module is based on wet film humidification, the humidification capacity can be adjusted by adjusting the water level of the wet film, for example, the higher the water level of the wet film, the stronger the humidification capacity. Alternatively, in the case where there is a thermostat unit in the humidification module, the humidification capacity can be adjusted by adjusting the temperature of the thermostat unit, for example, the higher the temperature of the thermostat unit, the stronger the humidification capacity.

[0046] In some embodiments, the dehumidification module can reduce air humidity in various ways. For example, the dehumidification module includes a first heat exchanger, and after the air passes through the first heat exchanger (evaporator), the temperature is reduced (for example, the air is cooled to below the dew point temperature), and excess moisture in the air condenses, thereby reducing the air humidity.

[0047] In some embodiments, the dehumidification capacity of the dehumidification module can be adjusted according to demand. For example, the dehumidification capacity of the dehumidification module can be adjusted by adjusting the heat exchange capacity of the first heat exchanger. For example, by increasing the opening of the valve (e.g., electric valve) of the refrigerant pipeline of the first heat exchanger, the heat exchange capacity of the first heat exchanger is improved, so that the temperature of the air passing through the first heat exchanger is lower, thereby lowering the air humidity and strengthening the dehumidification capacity of the dehumidification module.

[0048] In some embodiments, the dehumidification module may further include the second heat exchanger (reheat heat exchanger), which is arranged on the air path output side of the first heat exchanger and connected to the first heat exchanger through a refrigerant pipeline. The second heat exchanger is used to heat the dehumidified air, thereby preventing the user comfort from being affected by the decrease in the temperature of the dehumidified air.

[0049] In some embodiments, when the dehumidification module performs a dehumidification operation, the first heat exchanger operates as an evaporator and the second heat exchanger operates as a condenser.

[0050] In some embodiments, Figure 1 As shown, the conditioning object of the air treatment system of the present application may include multiple indoor spaces, and the air output by the humidity control module 120 after humidity control can be respectively supplied to the multiple indoor spaces through the air pipeline 150. In each indoor space, an indoor unit 140 is respectively provided. In addition, in some embodiments, the indoor unit 140 may be provided in some indoor spaces, while the indoor unit is not provided in some indoor spaces. Among them, an indoor space may be a room, or an area in a room.

[0051] In some embodiments, the air handling system 100 includes an air conditioning system. The air conditioning system may be a commercial air conditioning system or a residential air conditioning system.

[0052] In some embodiments, the air conditioning system may include at least one group of outdoor units 130 and at least one indoor unit 140 connected to each group of outdoor units. That is, in the air conditioning system, one or more groups of outdoor units may be included, each group of outdoor units includes at least one outdoor unit; for a group of outdoor units, the group of outdoor units is connected to at least one indoor unit.

[0053] For example, an air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit.

[0054] For example, the air conditioning system includes an outdoor unit and at least two indoor units connected to the outdoor unit.

[0055] For example, the air conditioning system includes at least two outdoor units and at least two indoor units connected to the at least two outdoor units.

[0056] For example, a group of outdoor units and at least one indoor unit connected to the group of outdoor units constitute a refrigerant system, or multiple groups of outdoor units and at least one indoor unit respectively connected to the multiple groups of outdoor units constitute multiple refrigerant systems. Thus, the air-conditioning system may include one refrigerant system or multiple refrigerant systems.

[0057] In some embodiments, the outdoor unit and the indoor unit may be air conditioning equipment of various models, types, forms, and capacities. For example, the indoor unit may be in the form of four-sided air outlet, two-sided air outlet, duct unit, ground air outlet, or skirting air outlet; the outdoor unit may be in the form of single fan upper air outlet, double fan upper air outlet, single fan front air outlet, or double fan front air outlet.

[0058] In some embodiments, Figure 1 As shown, the air handling system 100 further includes a control module 207 , which is used to perform relevant control.

[0059] For example, the air volume of the fan 111 of the air supply module 110 is controlled. For example, when the fan 111 of the air supply module 110 operates at a preset air volume and the air quality data of the indoor space meets the first preset condition, the fan 111 of the air supply module 110 is controlled to reduce the air volume.

[0060] For another example, the flow direction or flow rate of the refrigerant in the refrigerant pipeline of the air handling system 100 is controlled, and so on.

[0061] The control module 207 may be in various forms. For example, the control module may be provided on a control substrate of the air supply module 110. The present application is not limited thereto, and the control module may also be provided in a wired controller, a centralized controller, a remote controller, a network device, etc. of the air treatment system 100.

[0062] Figure 2It is a schematic diagram of another implementation of the air treatment system of the embodiment of the present application. Figure 2 Taking the humidity control module 120 including the dehumidification module as an example, the air treatment system is illustrated. The dehumidification module includes a first heat exchanger 121 and a second heat exchanger 122. It can be understood that Figure 2 The other structures of the air treatment system shown are also applicable to the case where the humidity control module 120 includes a humidification module, or the case where the dehumidification module does not include the second heat exchanger 122 .

[0063] In some embodiments, Figure 2 As shown, the outdoor unit 130 includes a compressor 131 and a third heat exchanger 132, and the compressor 131, the third heat exchanger 132, and the first heat exchanger 121 are connected in sequence through a refrigerant pipeline.

[0064] In some embodiments, Figure 2 As shown, the indoor unit 140 includes a fourth heat exchanger 141. The refrigerant input side of the fourth heat exchanger 141 is connected to the refrigerant input side of the first heat exchanger 121, and the refrigerant output side of the fourth heat exchanger 141 is connected to the refrigerant output side of the first heat exchanger 121.

[0065] In some embodiments, the number of the indoor unit 140 can be set to one or more. When the indoor unit 140 is set to multiple, the refrigerant input side of the fourth heat exchanger 141 of each indoor unit 140 is respectively connected to the refrigerant input side of the first heat exchanger 121, and the refrigerant output side of the fourth heat exchanger 141 of each indoor unit 140 is respectively connected to the refrigerant output side of the first heat exchanger 121.

[0066] In some embodiments, Figure 2 As shown, the air supply module 110 and the humidity control module 120 are independently arranged and connected via an air pipeline 150. The present application is not limited thereto, and the air supply module 110 and the humidity control module 120 may also be an integrated module.

[0067] In some embodiments, Figure 2 As shown, the control substrate 114 of the air supply module 110 and the control substrate 125 of the humidity control module 120 are independently arranged and electrically connected to each other. For example, the control substrate 114 of the air supply module 110 and the control substrate 125 of the humidity control module 120 are electrically connected through the air conditioning communication line 170. The present application is not limited to this, and the control substrate 114 of the air supply module 110 and the control substrate 125 of the humidity control module 120 can also be an integrated control substrate.

[0068] In some embodiments, Figure 2As shown, the air treatment system 100 may further include a floor heating module 205 , wherein the air supply module 110 , the humidity control module 120 , the outdoor unit 130 , the indoor unit 140 , and the floor heating module 205 may be electrically connected. For example, these modules are electrically connected via an air conditioning communication line 170 .

[0069] In some embodiments, Figure 2 As shown, the outdoor unit 130 inputs refrigerant gas to the first heat exchanger 121 and the fourth heat exchanger 141 through the refrigerant gas pipeline 160; and the refrigerant output sides of the first heat exchanger 121, the fourth heat exchanger 141 and the second heat exchanger 122 return the refrigerant liquid to the outdoor unit 130 through the refrigerant liquid pipeline 161; the second heat exchanger 122 and the outdoor unit 130 are also connected through the refrigerant high and low pressure pipelines 162.

[0070] In some embodiments, Figure 2 As shown, the outdoor unit 130 is connected to the floor heating module 205 via a refrigerant pipeline 206 .

[0071] In some embodiments, the air handling system 100 further includes a first controller 180 , which is electrically connected to the indoor unit 140 via a wired or wireless line 190 .

[0072] In some embodiments, the air handling system further includes a second controller 181 , which is electrically connected to the air supply module 110 via a wired or wireless line 191 .

[0073] The first controller 180 and the second controller 181 may be a wired controller, a centralized controller, a remote controller, etc.

[0074] In some embodiments, Figure 2 As shown, the air handling system 100 further includes network equipment, for example, the network equipment includes an intelligent gateway 201, a router 202, a repeater 203 (IP-BOX) and a wireless access point 204 (access point, AP) and the like.

[0075] For example, the wireless access point 204 can be set up in each room and connected to the router 202 via a wireless connection (for example, Wi-Fi, etc.); the repeater 203 is wirelessly connected to the router 202; and the repeater 203 is electrically connected to the outdoor unit 130 via the air conditioning communication line 170.

[0076] In some embodiments, the air treatment system 100 further includes a sensor device. For example, the sensor device may be various types of sensors, such as sensors for detecting air components and their contents, such as sensors for detecting air humidity, carbon dioxide concentration, fine particulate matter (PM2.5) concentration, inhalable particulate matter (PM10) concentration, volatile organic compound (VOC) concentration, nitrogen oxide concentration, ozone concentration, etc. The present application is not limited thereto, and the sensor device may also be a sensor for detecting other physical quantities, such as a temperature sensor, a pressure sensor, etc.

[0077] like Figure 2 As shown, the sensor device may include a sensor for detecting an indoor space and a sensor for detecting an outdoor space.

[0078] The sensor for detecting the indoor space may include at least one of the following: a built-in sensor arranged in the indoor space, an external sensor arranged in the indoor space, and a sensor 304 at the return air outlet of the air supply module 110 .

[0079] The built-in sensor, for example, includes a sensor 3011 at the air inlet or outlet of the indoor unit 140 in the indoor space, a sensor 3012 in the first controller 180 electrically connected to the indoor unit 140 in the indoor space, a sensor 303 in the second controller 181 electrically connected to the air supply module 110 in the indoor space, and the like.

[0080] The external sensor includes, for example, a sensor 302 disposed in an indoor space and electrically connected to the wireless access point 204 . The sensor 302 may be connected to the air supply module 110 via the wireless access point 204 and the repeater 203 .

[0081] The sensor for detecting the outdoor space may include a sensor 305 at the air inlet of the air supply module 110 , a sensor 306 provided in the outdoor unit, and the like.

[0082] In some embodiments, the air treatment system 100 may include: a detection module for detecting air quality data of the indoor space. The detection module may include at least one of the following: the above-mentioned built-in sensor arranged in the indoor space, the above-mentioned external sensor arranged in the indoor space, or the sensor of the return air outlet of the above-mentioned air supply module 110.

[0083] It is worth noting that the above is only an exemplary description of the components or modules of the air treatment system 100, but the present application is not limited thereto. The air treatment system 100 does not necessarily include all the components or modules described above; in addition, the air treatment system 100 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0084] Furthermore, for simplicity, Figure 1 and Figure 2 The connection relationship or signal direction between various components or modules is only exemplified, but it should be clear to those skilled in the art that other connection methods or signal directions may also be used between various components or modules.

[0085] Hereinafter, the control method of the air treatment system 100 is exemplarily described by taking the structure of the air treatment system 100 as an example.

[0086] In some embodiments, when the fan 111 of the air supply module 110 operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan 111 of the air supply module 110 is reduced.

[0087] By reducing the air volume of the fan 111 when the air quality data of the indoor space meets the first preset condition, the noise generated during the operation of the air treatment system 100 can be reduced while ensuring the air quality of the indoor space, thereby improving the user experience.

[0088] In some embodiments, the air treatment system 100 may have different working modes. For example, normal operation mode (comfort mode), silent mode (low noise mode), energy-saving mode, strong deodorization mode, etc. For example, in the normal operation mode, the fan 111 of the air supply module 110 may operate at a preset air volume; in the normal operation mode, if the air quality data of the indoor space meets the first preset condition, the air treatment system 100 may be switched to the silent mode, for example, the air volume of the fan 111 of the air supply module 110 may be reduced; in the silent or energy-saving mode, if the air volume of the fan 111 of the air supply module 110 is less than the preset air volume, if the air quality data of the indoor space meets the second preset condition, the air treatment system 100 may be exited from the silent or energy-saving mode and switched to the normal operation mode, for example, the air volume of the fan 111 of the air supply module 110 may be increased.

[0089] In some embodiments, the preset air volume may be an air volume determined according to information related to the air volume level input by a user. The air treatment system 100 may include a user interface module, which may receive information input by a user. The information related to the air volume level may be the air volume level itself, such as high, medium, or low level, or the operating mode of the air treatment system 100.

[0090] In some embodiments, the user interface module may be electrically connected to the control substrate 114 of the air supply module 110. For example, the user interface module may be the second controller 181 (the second controller 181 may be a wired controller, a centralized controller, a remote controller, etc.), or the user interface module may also be a mobile terminal such as a mobile phone, etc.

[0091] In some embodiments, the fan 111 may include at least one air volume level. For example, the air volume level may include: low level, medium level, high level, etc. The present application is not limited thereto, and the air volume level may also be defined in other ways.

[0092] In some embodiments, different air volume levels correspond to different air volumes (or fan speeds). After the user interface module receives information related to the air volume level input by the user, it determines the corresponding air volume according to the information and uses the determined air volume as the preset air volume.

[0093] Alternatively, different air volume levels correspond to different air volume ranges (or fan speed ranges). After the user interface module receives the information related to the air volume level input by the user, the air volume is selected within the corresponding air volume range and the selected air volume is used as the preset air volume.

[0094] In some embodiments, the air quality data may include at least one of the following: air humidity, carbon dioxide concentration, fine particulate matter (PM2.5) concentration, inhalable particulate matter (PM10) concentration, volatile organic compound (VOC) concentration, nitrogen oxide concentration, ozone concentration. The present application is not limited thereto, and the air quality data may also include the concentrations of other air components.

[0095] In some embodiments, the first preset condition includes that the air quality data is within a first preset range and lasts for a first preset time. In other words, the air volume of the fan 111 is reduced when the air quality data remains within the first preset range for a first preset time. Thus, frequent switching of air volume or working mode due to system malfunction or fluctuation of air quality data can be avoided.

[0096] In some embodiments, the air humidity in the air quality data may be relative humidity, but the present application is not limited thereto, and the air humidity may also be absolute humidity, etc.

[0097] In some embodiments, the values ​​of other air quality data other than air humidity (e.g., carbon dioxide concentration, fine particulate matter (PM2.5) concentration, inhalable particulate matter (PM10) concentration, volatile organic compound (VOC) concentration, nitrogen oxide concentration, ozone concentration, etc.) can be in various forms, for example, the value of carbon dioxide concentration is low, medium, high, etc. The specific method for determining the concentration value can refer to the relevant technology and will not be described in detail here.

[0098] In some embodiments, when the air quality data includes air humidity, the operation mode of the humidity control module 120 can be combined to determine whether to reduce the air volume of the fan 111 of the air supply module 110. In this way, it is possible to more accurately determine whether to reduce the air volume and avoid frequent adjustment of the air volume. The operation mode of the humidity control module 120 may include: humidification operation, dehumidification operation, non-operation, etc.

[0099] In some embodiments, when the humidity control module 120 performs humidification operation, the air humidity of the indoor space reaches above a first humidity and lasts for a first time, and other air quality data other than air humidity reaches below a first concentration and lasts for a second time, the air volume of the fan 111 of the air supply module 110 is reduced.

[0100] The first humidity may be a target humidity set by a user. Alternatively, considering the sensitivity or detection error of the sensor, the first humidity may be a humidity determined according to the target humidity and an offset value. For example, the first humidity is the target humidity + the offset value, that is, the first humidity is a higher humidity than the target humidity, thereby further ensuring the user experience.

[0101] For example, the humidity control module 120 performs humidification operation, the target humidity is 60%, the actual humidity reaches 62% or more and lasts for 10 minutes; and the carbon dioxide concentration is low and lasts for 60 minutes; in this case, the air volume of the fan 111 can be reduced. Since the current air quality data is in an appropriate range (specified range) for a period of time, the air volume of the fan 111 can be reduced to achieve noise reduction.

[0102] In some embodiments, when the humidity control module 120 performs dehumidification operation, the air humidity of the indoor space reaches below the second humidity and lasts for a first time, and other air quality data other than the air humidity reaches below the first concentration and lasts for a second time, the air volume of the fan 111 of the air supply module 110 is reduced.

[0103] The second humidity may be a target humidity set by a user. Alternatively, the second humidity may be a humidity determined according to the target humidity and an offset value, for example, the second humidity is the target humidity minus the offset value, that is, the second humidity is a humidity lower than the target humidity, thereby further ensuring user experience.

[0104] For example, the humidity control module 120 performs dehumidification operation with a target humidity of 50%. When the actual humidity reaches below 48% and lasts for 10 minutes, and the carbon dioxide concentration is low and lasts for 60 minutes, the air volume of the fan 111 can be reduced.

[0105] In some embodiments, when the humidity control module is not running and other air quality data except air humidity reaches below the first concentration and lasts for a third time, the air volume of the fan 111 of the air supply module 110 is reduced.

[0106] For example, the humidity control module 120 is not running, and the carbon dioxide concentration is low and lasts for 30 minutes; in this case, the air volume of the fan 111 can be reduced.

[0107] In some embodiments, the air volume of the fan 111 of the air supply module 110 may be reduced without combining the operation mode of the humidity control module 120. For example, when the air quality data (air humidity and other air quality data other than air humidity) reaches an appropriate range and lasts for a period of time, the air volume of the fan 111 of the air supply module 110 is reduced. In this way, the control logic can be simplified and easy to implement.

[0108] In some embodiments, the air volume of the fan 111 of the air supply module 110 can be reduced in various ways. For example, the air volume level of the fan 111 can be reduced, or the rotation speed of the fan 111 can be reduced. Specifically, the air volume level of the fan can be adjusted from the current level to a first level with a lower air volume; or the rotation speed of the fan 111 can be adjusted from the current rotation speed to a first lower rotation speed.

[0109] When adjusting the air volume gear, the first gear can be a gear that has a lower air volume than the current gear of the fan 111 and is adjacent to the current gear. In this way, it is possible to avoid large fluctuations in the air quality data of the indoor space due to excessive decrease in air volume. For example, when the fan 111 is running at a high gear, the fan 111 can be adjusted to a middle gear adjacent to the high gear. The present application is not limited thereto, and the first gear can also be a gear that is not adjacent to the current gear. For example, when the fan 111 is running at a high gear, the fan 111 can be adjusted to a low gear.

[0110] When adjusting the speed of the fan 111, the first speed and the current speed may correspond to the same air volume level. In other words, the speed of the fan 111 is adjusted within the same air volume level. Thus, it is possible to avoid large fluctuations in the air quality data of the indoor space due to a large drop in air volume.

[0111] For example, different air volume gears may correspond to different speed ranges. For example, the speed range corresponding to the high gear is 1000-1199 rpm, the speed range corresponding to the middle gear is 800-999 rpm, and the speed range corresponding to the low gear is 600-799 rpm.

[0112] The fan 111 is running at a high speed, and the current speed is 1100 rpm. The speed of the fan 111 can be adjusted to a range of 1000-1100 rpm, for example, to 1050 rpm. The present application is not limited thereto, and the first speed and the current gear can also correspond to different air volume gears. For example, the current speed of the fan 111 is 1100 rpm, and the speed can be adjusted to 900 rpm, wherein 1100 rpm and 900 rpm correspond to a high speed and a medium speed, respectively.

[0113] In some embodiments, when the fan 111 is running at the first speed or the first gear, and the air quality data of the indoor space meets the first preset condition, the air volume of the fan 111 can be further reduced (for example, the air volume gear of the fan 111 is further reduced, or the speed of the fan 111 is further reduced). In other words, after the fan 111 is running at a reduced air volume for a period of time, if the air quality data remains within an appropriate range, the air volume of the fan 111 can be further reduced, thereby further reducing noise.

[0114] In some embodiments, when the air volume of the fan 111 is reduced multiple times, the magnitude of each reduction in the air volume may be the same or different.

[0115] For example, the next reduction may be smaller than the last reduction. By reducing the air volume in an increasingly slower manner, significant fluctuations in air quality data can be avoided. The present application is not limited thereto, and the next reduction may also be larger than the last reduction.

[0116] For another example, the magnitude of each reduction in air volume may be related to the current air volume. For example, the greater the current air volume, the greater the magnitude of the reduction; the smaller the current air volume, the smaller the magnitude of the reduction. In this way, the actual air volume will not be reduced to an excessively small air volume value, which helps to keep the air quality data stable.

[0117] In some embodiments, the control of reducing the air volume can be stopped under specified conditions. For example, when the number of times the air volume is reduced reaches a specified value or the air volume is reduced to a specified air volume, the air volume is no longer reduced. In this way, the air volume can be guaranteed to avoid too low air volume, which affects the user experience.

[0118] The following is an illustrative description of the method of reducing the air volume by taking reducing the rotation speed as an example.

[0119] The initial speed of the fan is R0 (the initial speed corresponds to the aforementioned preset air volume), and the speed after n times of speed reduction control is Rn, Rn = (R0*(1-A*n)), 0≤n≤N_max, where N_max is the maximum number of times the air volume can be reduced, and A is the adjustment coefficient.

[0120] The maximum number of times N_max at which the air volume can be reduced may be a fixed value, for example, N_max = 2. The present application is not limited thereto, and N_max may also be related to the model of the fan 111, or to the preset air volume (initial air volume level, initial speed R0), for example, the larger the preset air volume, the larger N_max.

[0121] The adjustment coefficient A may be a fixed value. The present application is not limited thereto, and the adjustment coefficient may be related to the model of the fan 111, or to the value of the current air volume level, the current speed Rn, or the number of reductions n. For example, the larger the current air volume level or the current speed Rn, the larger A is; the larger the number of reductions n is, the smaller A is, and so on.

[0122] Table 1 shows the corresponding relationship between the adjustment coefficient A and the air volume level. As shown in Table 1, the adjustment coefficient A corresponding to level 1 is 0.04, and the adjustment coefficient A corresponding to level 2, which has a larger air volume than level 1, is 0.05.

[0123] Table 1: Correspondence between adjustment coefficient A and air volume level

[0124] Gear 1 Gear 2 A 0.04 0.05

[0125] In some embodiments, when the air volume of the fan 111 of the air supply module 110 is reduced, the user interface module may continue to display the air volume level corresponding to the preset air volume. By keeping the display of the user interface module unchanged when the air volume is reduced, it is possible to avoid confusion for the user. The present application is not limited thereto. When the air volume of the fan 111 is reduced, the user interface module may also display the air volume level corresponding to the actual air volume; or, before reducing the air volume of the fan 111, the user interface module may remind the user that the air treatment system 100 is about to enter the silent mode; or, after reducing the air volume of the fan 111, the user interface module may notify the user that the air treatment system 100 has entered the silent mode, and so on.

[0126] In some embodiments, when the current gear of the fan 111 of the air supply module 110 is below the preset gear, the air volume of the fan 111 of the air supply module 110 is not reduced. In other words, when the current gear of the fan 111 is below the preset gear, the air volume of the fan 111 is small and will not generate too much noise. Therefore, the control of reducing the air volume is not performed, thereby avoiding frequent switching of the air volume or system working mode. When the current gear of the fan 111 is a gear higher than the preset gear, the control of reducing the air volume is performed, thereby reducing noise. For example, when the current gear is a medium gear or a low gear, the control of reducing the air volume is not performed; when the current gear is a high gear, the control of reducing the air volume can be performed.

[0127] In some embodiments, when the air handling system 100 is operating in a specific mode (specific scenario) or there is a risk of freezing of the air handling system 100, the air volume of the fan 111 of the air supply module 110 is not reduced. Thus, the operating efficiency of the air handling system 100 can be ensured and the air handling system 100 can be prevented from shutting down due to freezing.

[0128] For example, when the air handling system 100 is operating in the strong deodorization mode, the air volume is not reduced; when the humidity control module 120 of the air handling system 100 or the heat exchanger of the indoor unit 140 is at risk of freezing, the air volume is not reduced. The specific method for determining whether the system is at risk of freezing can be referred to the relevant technology, which will not be described in detail here.

[0129] In some embodiments, when the air volume of the fan 111 of the air supply module 110 is reduced and the air quality data of the indoor space meets the second preset condition, the air volume of the fan 111 of the air supply module 110 is increased. Thus, the air volume of the fan 111 can be adjusted in time according to the air quality data, so as to restore the air quality data to an appropriate range, thereby ensuring the user experience.

[0130] In some embodiments, the second preset condition includes that the air quality data is within a second preset range and lasts for a second preset time. In other words, if the air quality data is not within an appropriate range within the second preset time, the air volume of the fan 111 is increased. Thus, frequent switching of air volume or working mode due to system malfunction or fluctuation of air quality data can be avoided.

[0131] In some embodiments, as long as there is one air quality data that is not within the appropriate range, the air volume of the fan 111 can be increased, thereby further improving the user experience.

[0132] For example, when the humidity control module 120 performs humidification operation and the air humidity of the indoor space reaches or falls below the third humidity and lasts for a fourth time, the air volume of the fan 111 of the air supply module 110 is increased; or

[0133] When the humidity control module 120 performs dehumidification operation and the air humidity in the indoor space reaches a fourth humidity or above and lasts for a fourth time, the air volume of the fan 111 of the air supply module 110 is increased; or

[0134] When other air quality data except air humidity reaches or exceeds the second concentration and lasts for a fifth period of time, the air volume of the fan 111 of the air supply module 110 is increased.

[0135] The third humidity and the fourth humidity may be target humidity set by the user. Alternatively, in consideration of the sensitivity or detection error of the sensor, the third humidity and the fourth humidity may also be humidity determined according to the target humidity and the offset value. For example, the third humidity is the target humidity minus the offset value, i.e., the third humidity is lower than the target humidity; the fourth humidity is the target humidity plus the offset value, i.e., the fourth humidity is higher than the target humidity.

[0136] For example, the humidity control module 120 performs humidification operation with a target humidity of 60%. When the actual humidity is below 55% and lasts for 10 minutes, the air volume of the fan 111 is increased; or, the humidity control module 120 performs dehumidification operation with a target humidity of 50%. When the actual humidity is above 55% and lasts for 10 minutes, the air volume of the fan 111 is increased; or, when the concentration of carbon dioxide is medium or high and lasts for 10 minutes, the air volume of the fan 111 is increased. Since there is currently air quality data that is not within an appropriate range, the air quality data is restored to an appropriate range by increasing the air volume of the fan 111.

[0137] In some embodiments, as described above, when the air quality data includes air humidity, the air volume of the fan 111 of the air supply module 110 can be increased in combination with the operation mode of the humidity control module 120. Thus, it is possible to more accurately determine whether to increase the air volume and avoid frequent adjustment of the air volume.

[0138] In some embodiments, whether to increase the air volume of the fan 111 of the air supply module 110 may be determined without combining the operation mode of the humidity control module 120. For example, when the air quality data (air humidity and other air quality data other than air humidity) is not within the appropriate range and continues for a period of time, the air volume of the fan 111 of the air supply module 110 is increased.

[0139] In some embodiments, the air volume of the fan 111 of the air supply module 110 may be increased in various ways, such as by increasing the air volume level of the fan 111 or increasing the rotation speed of the fan 111 .

[0140] In some embodiments, the air volume level of the fan can be adjusted to the air volume level corresponding to the preset air volume at one time, or the speed of the fan 111 can be adjusted to the speed corresponding to the preset air volume at one time. Alternatively, in some embodiments, the air volume level of the fan can be adjusted to the air volume level corresponding to the preset air volume multiple times, or the speed of the fan 111 can be adjusted to the speed corresponding to the preset air volume multiple times.

[0141] In some embodiments, if there are multiple indoor spaces, when the air quality data of at least one indoor space meets the second preset condition, the air volume of the fan 111 of the air supply module 110 is increased.

[0142] In some embodiments, if there are multiple indoor spaces, when the air quality data of all indoor spaces meet the first preset condition, the air volume of the fan 111 of the air supply module 110 can be reduced.

[0143] In some embodiments, the air volume of the fan 111 or the speed of the fan 111 (ie, the speed of the motor of the fan 111) can be measured in various ways, for example, by detecting the air volume through an air volume detection device, or detecting the speed through an infrared tachometer, a stroboscope, etc.

[0144] According to the above embodiment, in the air treatment system, when the fan of the air supply module is running at a preset air volume and the air quality data of the indoor space meets the first preset condition, the air volume of the fan of the air supply module is reduced. In this way, the air quality of the indoor space can be guaranteed and the noise generated during the operation of the air treatment system can be reduced, thereby improving the user experience.

[0145] Example 2

[0146] Embodiment 2 of the present application provides a control method for an air treatment system, wherein the air treatment system is the air treatment system described in Embodiment 1. The specific structure of the air treatment system can be referred to the description in Embodiment 1, and will not be repeated here.

[0147] Figure 3 FIG. 1 is a flow chart of an implementation method of a control method for an air treatment system in an embodiment of the present application. Figure 3 As shown, the method includes:

[0148] Step 31: When the fan of the air supply module is running at a preset air volume and the air quality data of the indoor space meets a first preset condition, reduce the air volume of the fan of the air supply module.

[0149] In some embodiments, in step 31, when the humidity control module performs humidification operation, the air humidity of the indoor space reaches above a first humidity and lasts for a first time, and other air quality data other than air humidity reaches below a first concentration and lasts for a second time, the air volume of the fan of the air supply module is reduced.

[0150] In some embodiments, in step 31, when the humidity control module performs dehumidification operation, the air humidity of the indoor space reaches below the second humidity and lasts for a first time, and other air quality data other than the air humidity reaches below the first concentration and lasts for a second time, the air volume of the fan of the air supply module is reduced.

[0151] In some embodiments, in step 31, when the humidity control module is not running and other air quality data except air humidity reaches below the first concentration and lasts for a third time, the air volume of the fan of the air supply module is reduced.

[0152] In some embodiments, in step 31, the fan speed can be adjusted from the current speed to a lower first speed, wherein the current speed and the first speed may correspond to the same or different air volume levels; or, the fan air volume level can be adjusted from the current level to a lower first level.

[0153] In some embodiments, when the fan is running at a first speed or a first gear and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module may continue to be reduced.

[0154] In some embodiments, Figure 3 As shown, the method may also include:

[0155] Step 32: When the air volume of the fan of the air supply module is reduced and the air quality data of the indoor space meets the second preset condition, increase the air volume of the fan of the air supply module.

[0156] In some embodiments, in step 32, when the humidity control module performs humidification operation and the air humidity of the indoor space reaches or falls below the third humidity and lasts for a fourth time, the air volume of the fan of the air supply module is increased.

[0157] In some embodiments, in step 32, when the humidity control module performs dehumidification operation and the air humidity of the indoor space reaches a fourth humidity or above and lasts for a fourth time, the air volume of the fan of the air supply module is increased.

[0158] In some embodiments, in step 32, when other air quality data except air humidity reaches a second concentration or above and lasts for a fifth time, the air volume of the fan of the air supply module is increased.

[0159] Figure 4 FIG. 1 is a flow chart of another implementation of the control method of the air treatment system of the embodiment of the present application. Figure 4 As shown, the method includes:

[0160] Step 41: The fan operates at a preset air volume;

[0161] Step 42: Determine whether the air quality data meets the first preset condition. If yes, execute step 43; otherwise, execute step 41;

[0162] Step 43: Reduce the air volume of the fan;

[0163] Step 44, determining whether the air quality data meets the first preset condition and whether the number of times the air volume is reduced has not reached the maximum number, if the determination is yes, executing step 43, otherwise executing step 45;

[0164] Step 45, determining whether the air quality data meets the second preset condition and whether the current air volume does not reach the preset air volume, if the determination is yes, executing step 46, otherwise executing step 47;

[0165] Step 46, increasing the air volume of the fan;

[0166] Step 47, maintaining the current air volume of the fan.

[0167] like Figure 4 As shown, after step 46 or step 47, the process may return to step 44 to continue determining whether to reduce, increase or maintain the air volume of the fan.

[0168] The specific implementation of the above steps can refer to the relevant records in Example 1, and will not be repeated here.

[0169] It is worth noting that the above Figure 3-4 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 3-4 Records of.

[0170] According to the above embodiment, in the air treatment system, when the fan of the air supply module is running at a preset air volume and the air quality data of the indoor space meets the first preset condition, the air volume of the fan of the air supply module is reduced. In this way, the air quality of the indoor space can be guaranteed and the noise generated during the operation of the air treatment system can be reduced, thereby improving the user experience.

[0171] The embodiment of the present application also provides a computer-readable program, wherein when the program is executed, the program enables the computer to execute the control method of the air treatment system described in Example 2.

[0172] An embodiment of the present application further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer-readable program enables a computer to execute the control method of the air treatment system described in Example 2.

[0173] The above devices and methods of the embodiments of the present application can be implemented by hardware, or by hardware combined with software. The present application relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above devices or components, or enables the logic component to implement the above methods or steps.

[0174] The embodiments of the present application also relate to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0175] It should be noted that the limitations of the various steps involved in this application, without affecting the implementation of the specific scheme, are not deemed to limit the order of the steps. The steps written in front can be executed first, or later, or even simultaneously. As long as this scheme can be implemented, it should be regarded as belonging to the scope of protection of this application.

[0176] The present application is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on the spirit and principles of the present application, and these modifications and variations are also within the scope of the present application.

Claims

1. An air treatment system, characterized in that: The system comprises: An air supply module supplies air to the indoor space, wherein the air supply module comprises a fan; A humidity control module, which is arranged at the air path output side of the air supply module and is used to adjust the humidity of the air output by the air supply module; Wherein, when the fan of the air supply module operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module is reduced.

2. The system according to claim 1, characterized in that The air quality data includes at least one of the following: air humidity, carbon dioxide concentration, fine particulate matter (PM2.5) concentration, inhalable particulate matter (PM10) concentration, volatile organic compound (VOC) concentration, nitrogen oxide concentration, and ozone concentration.

3. The system according to claim 1, characterized in that The first preset condition includes that the air quality data is within a first preset range and lasts for a first preset time.

4. The system according to claim 1, characterized in that When the humidity control module performs humidification operation, the air humidity of the indoor space reaches a first humidity or higher and lasts for a first time, and other air quality data other than air humidity reaches a first concentration or lower and lasts for a second time, reducing the air volume of the fan of the air supply module; or When the humidity control module performs dehumidification operation, the air humidity of the indoor space reaches a second humidity or lower and lasts for a first time, and other air quality data other than air humidity reaches a first concentration or lower and lasts for a second time, reducing the air volume of the fan of the air supply module; or When the humidity control module is not running and other air quality data except air humidity reaches or falls below a first concentration and lasts for a third time, the air volume of the fan of the air supply module is reduced.

5. The system according to claim 1, characterized in that Reducing the air volume of the fan of the air supply module includes at least one of the following: adjusting the speed of the fan from a current speed to a first lower speed, wherein the current speed and the first speed correspond to the same air volume level; or The air volume gear of the fan is adjusted from the current gear to a first gear with lower air volume.

6. The system according to claim 5, characterized in that When the fan is running at the first speed or the first gear and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module continues to be reduced.

7. The system according to claim 1, characterized in that The air handling system further comprises a user interface module, The preset air volume is an air volume determined according to the information related to the air volume level input by the user and received by the user interface module.

8. The system according to claim 7, characterized in that When the air volume of the fan of the air supply module is reduced, the user interface module keeps displaying the air volume level corresponding to the preset air volume.

9. The system according to claim 1, characterized in that When the air handling system is operating in a specific mode or there is a risk of freezing of the air handling system, the air volume of the fan of the air supply module is not reduced; or When the current gear position of the fan of the air supply module is below the preset gear position, the air volume of the fan of the air supply module is not reduced.

10. The system according to claim 1, characterized in that When the air volume of the fan of the air supply module is reduced and the air quality data of the indoor space meets a second preset condition, the air volume of the fan of the air supply module is increased.

11. The system according to claim 10, characterized in that The second preset condition includes that the air quality data is within a second preset range and lasts for a second preset time.

12. The system according to claim 10, characterized in that When the humidity control module performs humidification operation and the air humidity of the indoor space reaches or falls below a third humidity and lasts for a fourth time, increasing the air volume of the fan of the air supply module; or When the humidity control module performs dehumidification operation and the air humidity of the indoor space reaches a fourth humidity or higher and lasts for a fourth time, increasing the air volume of the fan of the air supply module; or When other air quality data except air humidity reaches a second concentration or above and lasts for a fifth time, the air volume of the fan of the air supply module is increased.

13. The system according to claim 10, characterized in that There are multiple indoor spaces, and when the air quality data of at least one of the indoor spaces meets the second preset condition, the air volume of the fan of the air supply module is increased.

14. The system according to claim 1, characterized in that There are multiple indoor spaces, and when the air quality data of all the indoor spaces meet the first preset condition, the air volume of the fan of the air supply module is reduced.

15. The system according to claim 1, characterized in that The system further comprises: A detection module, which detects the air quality data, The detection module includes at least one of the following: a built-in sensor arranged in the indoor space, an external sensor arranged in the indoor space, or a sensor at the return air outlet of the air supply module, wherein the air in the indoor space flows into the air supply module from the return air outlet.

16. The system according to claim 1, characterized in that The system further comprises: A control module controls the air volume of the fan of the air supply module, and the control module is arranged on a control substrate of the air supply module.

17. The system according to claim 1, characterized in that When the fan of the air supply module operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air treatment system enters a low noise mode.

18. The system according to claim 17, characterized in that When the air volume of the fan of the air supply module is reduced and the air quality data of the indoor space meets a second preset condition, the air treatment system exits the low noise mode.

19. A control method for an air handling system, characterized in that: The air handling system comprises: An air supply module supplies air to the indoor space, wherein the air supply module comprises a fan; A humidity control module, which is arranged at the air path output side of the air supply module and is used to adjust the humidity of the air output by the air supply module; The method comprises: When the fan of the air supply module operates at a preset air volume and the air quality data of the indoor space meets a first preset condition, the air volume of the fan of the air supply module is reduced.

20. The method according to claim 19, characterized in that Reducing the air volume of the fan of the air supply module includes at least one of the following: When the humidity control module performs humidification operation, the air humidity of the indoor space reaches a first humidity or higher and lasts for a first time, and other air quality data other than air humidity reaches a first concentration or lower and lasts for a second time, reducing the air volume of the fan of the air supply module; When the humidity control module performs dehumidification operation, the air humidity of the indoor space reaches a second humidity or lower and lasts for a first time, and other air quality data other than air humidity reaches a first concentration or lower and lasts for a second time, reducing the air volume of the fan of the air supply module; or When the humidity control module is not running and other air quality data except air humidity reaches or falls below a first concentration and lasts for a third time, the air volume of the fan of the air supply module is reduced.

21. The method according to claim 19, characterized in that The method further comprises: When the air volume of the fan of the air supply module is reduced and the air quality data of the indoor space meets a second preset condition, the air volume of the fan of the air supply module is increased.

22. The method according to claim 21, characterized in that Increasing the air volume of the fan of the air supply module includes at least one of the following: When the humidity control module performs humidification operation and the air humidity of the indoor space reaches or falls below a third humidity and lasts for a fourth time, increasing the air volume of the fan of the air supply module; When the humidity control module performs dehumidification operation and the air humidity of the indoor space reaches a fourth humidity or higher and lasts for a fourth time, increasing the air volume of the fan of the air supply module; or When other air quality data except air humidity reaches a second concentration or above and lasts for a fifth time, the air volume of the fan of the air supply module is increased.

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