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 flow adjusting valve of the heat exchanger of the dehumidification module is controlled according to the air humidity of the indoor space and the preset humidity, and therefore the air humidity of the indoor space can be adjusted to a proper range, and comfort and user experience can be 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 advancement of science and technology and the improvement of living standards, people have higher and higher requirements for living environment, among which indoor temperature and humidity are important indicators of living environment. For example, in rainy season or summer, the indoor air is relatively humid, and dehumidification equipment is needed to dehumidify the indoor air.

[0003] In the air handling system, when the dehumidification operation is performed, the moisture in the air is removed after the air passes through the evaporator installed in the room, and dry air is blown out to achieve the dehumidification effect.

[0004] 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

[0005] The inventors have discovered that in existing air treatment systems, the start and stop of the dehumidification equipment is controlled by controlling the target evaporation temperature of the refrigerant in the dehumidification module below the indoor dew point temperature. In other words, in this way, the start and stop of the dehumidification equipment is controlled by the humidity of the air flowing through the dehumidification module as a control condition. Since the humidity of the air flowing through the dehumidification module cannot directly represent the actual air humidity of the indoor space. Therefore, even if the humidity of the air flowing through the dehumidification module reaches the preset humidity, the actual air humidity of the indoor space may not be within the appropriate range. Therefore, the user experience cannot be guaranteed.

[0006] 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. The flow regulating valve of the heat exchanger of the dehumidification module is controlled according to the air humidity of the indoor space and the preset humidity, thereby adjusting the air humidity of the indoor space to an appropriate range, thereby improving comfort and user experience.

[0007] According to a first aspect of an embodiment of the present application, an air treatment system is provided, comprising an air supply module which supplies air to an indoor space, the air supply module comprising a fan; a dehumidification module which is arranged on the air path output side of the air supply module and is used to dehumidify the air output by the air supply module, the dehumidification module comprising a first heat exchanger and a first flow regulating valve arranged on the refrigerant liquid side of the first heat exchanger; an outdoor unit which comprises a compressor and a second heat exchanger, the compressor, the second heat exchanger, the first heat exchanger and the first flow regulating valve being connected in sequence through a refrigerant pipeline; when the fan is running and the dehumidification module is performing dehumidification, the first heat exchanger is an evaporator and the second heat exchanger is a condenser, and when the air humidity in the indoor space is less than or equal to a preset humidity, the first flow regulating valve is closed.

[0008] According to a second aspect of an embodiment of the present application, a control method for an air treatment system is provided, the system comprising: an air supply module, which supplies air to an indoor space, the air supply module comprising a fan; a dehumidification module, which is arranged on the air path output side of the air supply module, and is used to dehumidify the air output by the air supply module, the dehumidification module comprising a first heat exchanger and a first flow regulating valve arranged on the refrigerant liquid side of the first heat exchanger; an outdoor unit, which comprises a compressor and a second heat exchanger, the compressor, the second heat exchanger, the first heat exchanger and the first flow regulating valve are connected in sequence through a refrigerant pipeline; the method comprises: when the fan is running and the dehumidification module is performing dehumidification, the first heat exchanger is an evaporator, the second heat exchanger is a condenser, and when the air humidity in the indoor space is less than or equal to a preset humidity, the first flow regulating valve is closed.

[0009] One of the beneficial effects of the embodiments of the present application is that the flow regulating valve of the heat exchanger of the dehumidification module is controlled according to the air humidity of the indoor space and the preset humidity, thereby adjusting the air humidity of the indoor space to an appropriate range, thereby improving comfort and user experience.

[0010] 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.

[0011] 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.

[0012] 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

[0013] 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.

[0014] In the attached picture:

[0015] Figure 1 is a schematic diagram of an implementation of an air treatment system of an embodiment of the present application;

[0016] Figure 2 is a schematic diagram of another implementation of the air treatment system of an embodiment of the present application;

[0017] Figure 3 is a schematic diagram of another implementation of the air treatment system of an embodiment of the present application;

[0018] Figure 4 is a flow chart of a control method of an air treatment system according to an embodiment of the present application;

[0019] Figure 5 is another flow chart of the control method of the air treatment system according to an embodiment of the present application;

[0020] Figure 6 is another flow chart of the control method of the air treatment system according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present application will be described below with reference to the accompanying drawings.

[0022] Example 1

[0023] Embodiment 1 of the present application provides an air treatment system.

[0024] 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 solid lines between modules or devices represent refrigerant pipelines; in addition, the solid arrows indicate the flow direction of the refrigerant, and the hollow arrows indicate the flow direction of the air.

[0025] like Figure 1 As shown, the air handling system 100 includes:

[0026] An air supply module 110 supplies air to the indoor space, and the air supply module 110 includes a fan 111;

[0027] A dehumidification module 120, which is arranged at the air path output side of the air supply module 110, and is used to dehumidify the air output by the air supply module 110, and the dehumidification module 120 includes a first heat exchanger 121 and a first flow regulating valve 123 arranged on the refrigerant liquid side of the first heat exchanger 121;

[0028] The outdoor unit 130 includes a compressor 131 and a second heat exchanger 132 . The compressor 131 , the second heat exchanger 132 , the first heat exchanger 121 and the first flow regulating valve 123 are sequentially connected via a refrigerant pipeline.

[0029] 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).

[0030] 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).

[0031] The fan 111 is used to form an airflow, thereby introducing air into the room.

[0032] In addition, in some embodiments, the air supply module 110 may further include a fan 112 for exhausting air to the outdoors and a total heat exchanger 113 .

[0033] In some embodiments, the air supply module 110 has internal circulation and external circulation modes.

[0034] 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.

[0035] 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.

[0036] In some embodiments, the air supply module 110 does 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.

[0037] like Figure 1 As shown, the dehumidification module 120 is arranged on the air path output side of the air supply module 110, for example Figure 1 On the side where the SA is located, the dehumidification module 120 dehumidifies the air output by the air supply module 110 by passing through the first heat exchanger 121 with refrigerant. At this time, the first heat exchanger 121 operates as an evaporator, thereby reducing the temperature of the air output by the air supply module 110 and condensing excess moisture in the air, thereby reducing the air humidity.

[0038] The dehumidification module 120 further includes a first flow regulating valve 123, which is disposed on the refrigerant liquid side of the first heat exchanger 121, that is, the liquid refrigerant flows into the first heat exchanger 121 via the first flow regulating valve 123, or the liquid refrigerant flows out of the first heat exchanger 121 and then flows through the first flow regulating valve 123. The first flow regulating valve 123 is used to control the refrigerant flow to the first heat exchanger 121. The first flow regulating valve 123 can be any valve capable of regulating the refrigerant flow, such as a solenoid valve, an electric valve, and an electronic expansion valve.

[0039] like Figure 1 As shown, the outdoor unit 130 includes a compressor 131 and a second heat exchanger 132. The compressor 131, the second heat exchanger 132, the first heat exchanger 121 and the first flow regulating valve 123 are sequentially connected through a refrigerant pipeline.

[0040] For example, when the first heat exchanger 121 operates as an evaporator and the second heat exchanger 132 operates as a condenser, starting from the refrigerant output side of the compressor 131, the refrigerant flows through the compressor 131, the second heat exchanger 132, the first flow regulating valve 123 and the first heat exchanger 121 in sequence, and the refrigerant flowing through the first heat exchanger 121 flows back to the refrigerant input side of the compressor 131.

[0041] For another example, when the first heat exchanger 121 operates as a condenser and the second heat exchanger 132 operates as an evaporator, starting from the refrigerant output side of the compressor 131, the refrigerant flows through the compressor 131, the first heat exchanger 121, the first flow regulating valve 123 and the second heat exchanger 132 in sequence, and the refrigerant flowing through the second heat exchanger 132 flows back to the refrigerant input side of the compressor 131.

[0042] In some embodiments, Figure 1 As shown, the outdoor unit 130 may further include a bypass circuit 133 , a liquid storage tank 134 and other components.

[0043] In some embodiments, Figure 1 As shown, the outdoor unit 130 further includes a switching valve 135, which switches the flow direction of the refrigerant in the refrigerant pipeline. The switching valve 135 can be any valve capable of adjusting the flow direction of the refrigerant, such as a four-way valve.

[0044] The flow direction of the refrigerant in the refrigerant pipeline is adjusted by the switching valve 135 so that the air handling system operates in a corresponding working mode. The working modes of the air handling system may include heating, cooling, dehumidification, defrosting, etc.

[0045] For example, the switching valve 135 can be switched as follows: when the indoor unit 140 is cooling, the second heat exchanger 132 operates as a condenser and the third heat exchanger 141 operates as an evaporator; when the indoor unit 140 is heating, the second heat exchanger 132 operates as an evaporator and the third heat exchanger 141 operates as a condenser; when the dehumidification module 120 is dehumidifying, the first heat exchanger 121 operates as an evaporator and the second heat exchanger 132 operates as a condenser.

[0046] In some embodiments, Figure 1 As shown, the air handling system may further include: an indoor unit 140, which is arranged in the indoor space. The indoor unit 140 may include a third heat exchanger 141, the refrigerant input side of the third heat exchanger 141 is connected to the refrigerant input side of the first heat exchanger 121, and the refrigerant output side of the third heat exchanger 141 is connected to the refrigerant output side of the first heat exchanger 121. In addition, the indoor unit 140 also includes a fan 142.

[0047] 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 third 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 third heat exchanger 141 of each indoor unit 140 is respectively connected to the refrigerant output side of the first heat exchanger 121.

[0048] In some embodiments, the conditioning object of the air treatment system of the present application may include multiple indoor spaces, and the air output by the dehumidification module 120 after dehumidification can be respectively supplied to the multiple indoor spaces through air ducts. Indoor units 140 are respectively arranged in each indoor space. In addition, in some embodiments, indoor units 140 may be arranged in some indoor spaces, while indoor units are not arranged in some indoor spaces. Among them, an indoor space may be a room, or an area in a room.

[0049] 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.

[0050] In some embodiments, the air conditioning system may include at least one group of outdoor units and at least one indoor unit connected to each group of outdoor units. That is, the air conditioning system may include one or more groups of outdoor units, 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.

[0051] For example, an air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit.

[0052] For example, the air conditioning system includes an outdoor unit and at least two indoor units connected to the outdoor unit.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Figure 2 is a schematic diagram of another embodiment of the air treatment system of the present application, wherein: Figure 2 The structure of the air handling system 100 is shown in FIG. Figure 1 The structure of the air treatment system 100 shown is substantially the same, except that Figure 2 As shown, the dehumidification module 120 may further include a fourth heat exchanger 122. The fourth heat exchanger 122 is disposed at the air path output side of the first heat exchanger 121 and is connected to the first heat exchanger 121 through a refrigerant pipeline.

[0057] like Figure 2 As shown, the fourth heat exchanger 122 is arranged on the wind path output side of the first heat exchanger 121 , for example, the fourth heat exchanger 122 is arranged on the downstream side of the first heat exchanger 121 in the air flow direction.

[0058] In some embodiments, the fourth heat exchanger 122 is a reheat heat exchanger for heating the dehumidified air, thereby preventing the temperature of the dehumidified air from decreasing and improving user comfort.

[0059] In some embodiments, when the dehumidification module 120 performs dehumidification, the first heat exchanger 121 operates as an evaporator, and the fourth heat exchanger 122 and the second heat exchanger 132 operate as condensers. The refrigerant in the air handling system 100 may flow in the following manner: the refrigerant gas flowing out from the refrigerant output side of the compressor 131 flows into the second heat exchanger 132 and the fourth heat exchanger 122; the refrigerant liquid condensed by the second heat exchanger 132 and the fourth heat exchanger 122 converges in the dehumidification unit 120 and is supplied to the first heat exchanger 121; the refrigerant gas evaporated by the first heat exchanger 121 is supplied to the refrigerant input side of the compressor 131.

[0060] Figure 3 is a schematic diagram of another embodiment of the air treatment system of the present application. Figure 3 The air treatment system is illustrated by taking the dehumidification module 120 including the first heat exchanger 121 and the fourth heat exchanger 122 as an example. Figure 3 The structure shown is also applicable to the case where the dehumidification module 120 does not include the fourth heat exchanger 122 .

[0061] In some embodiments, Figure 3 As shown, the air supply module 110 and the dehumidification module 120 are independently arranged and connected via an air pipeline 150 .

[0062] In some embodiments, Figure 3 As shown, the control substrate 114 of the air supply module 110 and the control substrate 125 of the dehumidification 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 dehumidification module 120 are electrically connected through the air conditioning communication line 170.

[0063] In some embodiments, Figure 3 As shown, the indoor unit 140 is electrically connected to the air supply module 110. For example, the indoor unit 140 is electrically connected to the air supply module 110 via an air conditioning communication line 170.

[0064] In some embodiments, Figure 3As shown, the outdoor unit 130 inputs refrigerant gas to the first heat exchanger 121 and the third heat exchanger 141 through the refrigerant gas pipeline 160; and the refrigerant output sides of the first heat exchanger 121, the third heat exchanger 141 and the fourth heat exchanger 122 return the refrigerant liquid to the outdoor unit 130 through the refrigerant liquid pipeline 161; the fourth heat exchanger 122 and the outdoor unit 130 are also connected through the refrigerant high and low pressure pipelines 162.

[0065] In some embodiments, Figure 3 As shown, the number of indoor units 140 can be set to multiple. When the indoor unit 140 is set to multiple, the refrigerant input side of the third heat exchanger 141 of each indoor unit 140 is respectively connected to the refrigerant input side of the first heat exchanger 121 through the refrigerant gas pipeline 160, and the refrigerant output side of the third heat exchanger 141 of each indoor unit 140 is respectively connected to the refrigerant output side of the first heat exchanger 121 through the refrigerant liquid pipeline 161.

[0066] In some embodiments, the air handling system further includes a first controller 180 , which is electrically connected to the indoor unit 140 via a wired line 190 .

[0067] 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 line 191 .

[0068] The first controller 180 and the second controller 181 may be a wired controller, a centralized controller, a remote controller, etc.

[0069] In some embodiments, the air handling system of the present application further includes a network device, for example, the network device includes an intelligent gateway 201, a router 202, a repeater 203 (IP-BOX), and a wireless access point 204 (access point, AP), etc.

[0070] 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.

[0071] In some embodiments, the air treatment system of the present application further includes a sensor device. For example, the sensor device can be various types of sensors: temperature, humidity, pressure, time, etc.

[0072] Taking the first humidity sensor as an example, the first humidity sensor includes a first type of sensor, a second type of sensor, and a third type of sensor.

[0073] like Figure 3 As shown, the first type of sensor includes at least one of the following: a sensor 3011 disposed at an air inlet or an air outlet of the indoor unit 140 in the indoor space, and a sensor 3012 disposed in a first controller 180 electrically connected to the indoor unit 140 in the indoor space.

[0074] The second type of sensor includes an external sensor 302 disposed in an indoor space.

[0075] The third type of sensor includes at least one of the following: a sensor 304 of the return air outlet of the air supply module 110 , and a sensor 303 of the second controller 181 which is arranged in the indoor space and is electrically connected to the air supply module 110 .

[0076] In some embodiments, Figure 3 As shown, the first type of sensors and the second type of sensors can be set in multiple indoor spaces, or multiple first type of sensors or second type of sensors can be set in one indoor space.

[0077] In some embodiments, the external sensor 302 may be connected to the air supply module 110 via a repeater 203 .

[0078] In some embodiments, Figure 3 As shown, the air treatment system further includes a second humidity sensor. The second humidity sensor includes at least one of the following: a sensor 305 disposed at the air inlet of the air supply module 110, and a sensor 306 disposed at the outdoor unit.

[0079] 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.

[0080] In some embodiments, the opening or closing of the first flow regulating valve 123 of the first heat exchanger 121 of the dehumidification module 120 is controlled according to the air humidity of the indoor space and the preset humidity.

[0081] For example, when the air humidity in the indoor space is less than or equal to the preset humidity, the first flow regulating valve 123 is closed, that is, the refrigerant does not flow to the first heat exchanger 121, so that the dehumidification module 120 does not perform dehumidification operation; when the air humidity in the indoor space is greater than the preset humidity, the first flow regulating valve 123 is opened, that is, the refrigerant flows to the first heat exchanger 121, so that the dehumidification module 120 performs dehumidification operation.

[0082] Thus, the flow regulating valve of the heat exchanger of the dehumidification module can be directly controlled according to the air humidity of the indoor space and the preset humidity, so that the air humidity of the indoor space can be adjusted to an appropriate range, which can improve comfort and user experience.

[0083] In some embodiments, the air humidity and the preset humidity may be relative humidity. The present application is not limited thereto, and the air humidity and the preset humidity may also be absolute humidity.

[0084] In some embodiments, the preset humidity may be a range. Taking relative humidity as an example, the preset humidity may be 40%-70%. Air humidity less than the preset humidity may be the minimum value of the range of values ​​of air humidity less than the preset humidity; air humidity greater than the preset humidity may be the maximum value of the range of values ​​of air humidity greater than the preset humidity. The present application is not limited thereto, and the preset humidity may also be a specific value.

[0085] In some embodiments, considering the error of the sensor detection result, the air humidity less than the preset humidity may be the difference between the minimum value of the value range of the air humidity less than the preset humidity and the preset deviation; the air humidity greater than the preset humidity may be the sum of the maximum value of the value range of the air humidity greater than the preset humidity and the preset deviation. The preset deviation is, for example, 5%.

[0086] In some embodiments, when the dehumidification module 120 is performing dehumidification, the fan 111 of the air supply module 110 is operated to deliver the air to be dehumidified to the dehumidification module 120. When the first flow regulating valve 123 is closed, that is, the dehumidification module 120 stops dehumidification, the fan 111 of the air supply module 110 can continue to operate. Thus, when the dehumidification module 120 stops dehumidification, the air supply module 110 can also continue to ventilate, thereby further improving the user experience.

[0087] In some embodiments, the air humidity of the indoor space is obtained based on the detection result of the first humidity sensor. As mentioned above, the first humidity sensor includes at least one of the following: a first type of sensor, a second type of sensor, and a third type of sensor.

[0088] In some embodiments, at least one may be selected from the first type of sensor, the second type of sensor, and the third type of sensor, and the air humidity of the indoor space may be determined based on the detection result of the selected sensor.

[0089] For example, one of the first type of sensor, the second type of sensor, and the third type of sensor is selected, and the air humidity of the indoor space is determined by the detection result of the one sensor. For example, when judging whether to close the first flow regulating valve 123, the sensor with the highest humidity detection among the first type of sensor, the second type of sensor, and the third type of sensor is selected, and the detection result of the sensor is used as the air humidity of the indoor space; when judging whether to open the first flow regulating valve 123, the sensor with the lowest humidity detection among the first type of sensor, the second type of sensor, and the third type of sensor is selected, and the detection result of the sensor is used as the air humidity of the indoor space. The present application is not limited to this, and selection can also be made in other ways.

[0090] For example, multiple sensors are selected from the first type of sensors, the second type of sensors, and the third type of sensors, and the air humidity of the indoor space is determined based on the detection results of the multiple sensors. For example, the average value or weighted average value of the detection results of the multiple sensors is used as the air humidity of the indoor space.

[0091] In some embodiments, when the first type of sensor is set in multiple indoor spaces and detects the first air humidity of each indoor space, the maximum value of the detected first air humidity is used as the detection result of the first type of sensor. In this way, the air humidity of multiple indoor spaces can be controlled below the preset humidity, which helps to improve user experience.

[0092] In some embodiments, when the first type of sensor includes multiple sensors in an indoor space, the first air humidity of the indoor space is determined according to the detection results of the multiple sensors. For example, the first air humidity of the indoor space is the maximum value or minimum value or weighted average value of the detection results of the multiple sensors of the first type of sensor.

[0093] In some embodiments, when the second type of sensor is set in multiple indoor spaces and detects the second air humidity of each indoor space, the maximum value of the detected second air humidity is used as the detection result of the second type of sensor. In this way, the air humidity of multiple indoor spaces can be controlled below the preset humidity, which helps to improve user experience.

[0094] In some embodiments, when the second type of sensor includes multiple sensors in an indoor space, the second air humidity of the indoor space is determined according to the detection results of the multiple sensors. For example, the second air humidity of the indoor space is the maximum value or minimum value or weighted average value of the detection results of the multiple sensors of the second type of sensor.

[0095] The control method of the air treatment system described above can be applied to various circulation modes of the air supply module 110. For example, when the air supply module 110 is in the internal circulation mode or the external circulation mode, the opening or closing of the first flow regulating valve 123 of the first heat exchanger 121 of the dehumidification module 120 can be controlled according to the air humidity of the indoor space and the preset humidity. However, the present application is not limited thereto, and in some embodiments, further control can also be performed according to the circulation mode of the air supply module 110.

[0096] For example, when the air supply module 110 operates in an external circulation mode of introducing outdoor air from the air inlet and sending the outdoor air into the indoor space, the first flow regulating valve is opened or closed according to the first absolute humidity of the outdoor air and the second absolute humidity of the air in the indoor space.

[0097] For example, when the first absolute humidity is less than or equal to the second absolute humidity and the air humidity in the indoor space is less than or equal to the preset humidity, the first flow regulating valve is closed; when the first absolute humidity is greater than the second absolute humidity or the air humidity in the indoor space is greater than the preset humidity, the first flow regulating valve is opened.

[0098] Thus, when the outdoor humidity is high, the dehumidification operation can be performed by the dehumidification module 120. For example, when the outdoor humidity is high, even if the current indoor air humidity is lower than the preset humidity, the dehumidification module 120 is operated to perform the dehumidification operation, thereby timely avoiding the increase of the air humidity of the indoor air due to the introduction of external air. When the outdoor humidity is low, similar to the internal circulation mode, whether to perform the dehumidification operation is determined based on the air humidity of the indoor space and the preset humidity, which helps to improve the user experience.

[0099] In addition, since the absolute humidity values ​​indoors and outdoors are used for comparison, it can accurately reflect the relationship between the actual water vapor content indoors and outdoors and will not be affected by the air temperature, thereby ensuring the accuracy of the comparison results and the accuracy of the control, which helps to further improve the user experience.

[0100] In some embodiments, the first absolute humidity of the outdoor air is obtained according to the detection result of the second humidity sensor. As mentioned above, the second humidity sensor can be a sensor 305 disposed at the air inlet of the air supply module 110 or a sensor 306 disposed at the outdoor unit.

[0101] In some embodiments, when the air supply module supplies outdoor air to multiple indoor spaces, the second absolute humidity is the minimum value of the absolute humidity of the multiple indoor spaces, so that the first flow regulating valve can be opened more timely to perform dehumidification operation.

[0102] In some embodiments, the second absolute humidity may be obtained from a detection result of the first humidity sensor.

[0103] In some embodiments, the air treatment system 100 further includes a control module, which is used to perform related controls, for example, to control the first flow regulating valve 123. For example, when the fan 111 is running and the dehumidification module 120 is performing dehumidification, the first heat exchanger 121 is an evaporator, and the second heat exchanger 132 is a condenser. When the air humidity in the indoor space is less than or equal to the preset humidity, the first flow regulating valve 123 is closed.

[0104] In addition, the control module can also control the flow direction of the refrigerant in the refrigerant pipeline (the conduction direction of the switching valve 135), control the air volume of the fan 111 of the air supply module 110, and so on.

[0105] For example, the control module is a control substrate of the dehumidification module 120 .

[0106] According to the above embodiment, the flow regulating valve of the heat exchanger of the dehumidification module is controlled according to the air humidity of the indoor space and the preset humidity, thereby adjusting the air humidity of the indoor space to an appropriate range, thereby improving comfort and user experience.

[0107] Example 2

[0108] 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.

[0109] Figure 4 FIG. 1 is a flow chart of a control method of an air treatment system according to an embodiment of the present application. Figure 4 As shown, the method includes:

[0110] Step 401: When the fan is running and the dehumidification module is performing dehumidification, the first heat exchanger is an evaporator and the second heat exchanger is a condenser. When the air humidity in the indoor space is less than or equal to the preset humidity, the first flow regulating valve is closed.

[0111] In some embodiments, when the first flow regulating valve is closed, the air supply module continues to operate.

[0112] Figure 5 FIG. 1 is another flow chart of the control method of the air treatment system according to an embodiment of the present application. Figure 5 As shown, the method includes:

[0113] Step 501: Determine whether the air humidity of the indoor space is less than or equal to the preset humidity. If it is determined to be yes, execute step 502; if it is determined to be no, execute step 503;

[0114] Step 502: close the first flow regulating valve to stop the dehumidification operation;

[0115] Step 503: Open the first flow regulating valve to perform dehumidification operation.

[0116] In some embodiments, the air humidity of the indoor space is obtained based on the detection result of a first humidity sensor, and the first humidity sensor includes at least one of the following: a first type of sensor, a second type of sensor, and a third type of sensor, wherein the first type of sensor includes at least one of the following: a sensor at the air inlet of an indoor unit in the indoor space, a sensor at the air outlet of the indoor unit, and a sensor in a first controller electrically connected to the indoor unit in the indoor space; the second type of sensor includes an external sensor arranged in the indoor space; the third type of sensor includes at least one of the following: a sensor at the return air outlet of an air supply module, and a sensor of a second controller electrically connected to the air supply module arranged in the indoor space, wherein the air in the indoor space flows into the air supply module from the return air outlet.

[0117] In some embodiments, Figure 4 As shown, the method also includes:

[0118] Step 402: Select at least one of the first type of sensor, the second type of sensor, and the third type of sensor, and determine the air humidity of the indoor space according to the detection result of the selected sensor.

[0119] exist Figure 4 In the embodiment, step 402 is an optional step.

[0120] In some embodiments, when the first type of sensor is set in a plurality of the indoor spaces to detect the first air humidity of each indoor space, the maximum value of the detected first air humidity is used as the detection result of the first type of sensor.

[0121] In some embodiments, when the first type of sensor includes a plurality of sensors in one indoor space, the first air humidity of the indoor space is determined according to detection results of the plurality of sensors.

[0122] In some embodiments, the first air humidity of the indoor space is the maximum value, the minimum value, or the weighted average value of the detection results of the plurality of sensors of the first type of sensors.

[0123] In some embodiments, when the second type of sensor is disposed in a plurality of the indoor spaces to detect the second air humidity of each indoor space, the maximum value of the detected second air humidity is used as the detection result of the second type of sensor.

[0124] In some embodiments, when the second type of sensor includes a plurality of sensors in one indoor space, the second air humidity of the indoor space is determined according to detection results of the plurality of sensors.

[0125] In some embodiments, the second air humidity of the indoor space is the maximum value, the minimum value, or the weighted average value of the detection results of the plurality of sensors of the second type of sensors.

[0126] In some embodiments, when the air supply module operates in an external circulation mode that introduces outdoor air from an air inlet and delivers the outdoor air into the indoor space, the first flow regulating valve is opened or closed according to a first absolute humidity of the outdoor air and a second absolute humidity of the air in the indoor space.

[0127] In some embodiments, when the first absolute humidity is less than or equal to the second absolute humidity and the air humidity of the indoor space is less than or equal to the preset humidity, the first flow regulating valve is closed; or when the first absolute humidity is greater than the second absolute humidity or the air humidity of the indoor space is greater than the preset humidity, the first flow regulating valve is opened.

[0128] Figure 6 FIG. 1 is another flow chart of the control method of the air treatment system according to an embodiment of the present application. Figure 6 As shown, the method includes:

[0129] Step 601: Determine whether the air humidity of the indoor space is less than or equal to the preset humidity. If it is determined to be yes, execute step 602; if it is determined to be no, execute step 604;

[0130] Step 602: Determine whether the first absolute humidity is less than or equal to the second absolute humidity. If it is determined to be yes, execute step 603; if it is determined to be no, execute step 604;

[0131] Step 603: close the first flow regulating valve to stop the dehumidification operation;

[0132] Step 604: Open the first flow regulating valve to perform dehumidification operation.

[0133] In some embodiments, the first absolute humidity of the outdoor air is obtained based on a detection result of a second humidity sensor, wherein the second humidity sensor is disposed at the air inlet of the air supply module.

[0134] In some embodiments, when the air supply module supplies outdoor air to the plurality of indoor spaces, the second absolute humidity is a minimum value of the absolute humidity of the plurality of indoor spaces.

[0135] In some embodiments, the dehumidification module further includes: a fourth heat exchanger, which is arranged on the air path output side of the first heat exchanger and is connected to the first heat exchanger through a refrigerant pipeline. Wherein, when the dehumidification module performs dehumidification, the refrigerant in the air handling system flows in the following manner: the refrigerant gas flowing out from the refrigerant output side of the compressor flows into the second heat exchanger and the fourth heat exchanger; the refrigerant liquid condensed by the second heat exchanger and the fourth heat exchanger converges in the dehumidification unit and is supplied to the first heat exchanger; the refrigerant gas evaporated by the first heat exchanger is supplied to the refrigerant input side of the compressor.

[0136] The specific implementation of the above steps can refer to the relevant records in Example 1, and will not be repeated here.

[0137] According to the above embodiment, the flow regulating valve of the heat exchanger of the dehumidification module is controlled according to the air humidity of the indoor space and the preset humidity, thereby adjusting the air humidity of the indoor space to an appropriate range, thereby improving comfort and user experience.

[0138] 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.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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 dehumidification module, which is arranged at the air path output side of the air supply module and is used to dehumidify the air output by the air supply module, the dehumidification module comprising a first heat exchanger and a first flow regulating valve arranged at the refrigerant liquid side of the first heat exchanger; An outdoor unit, comprising a compressor and a second heat exchanger, wherein the compressor, the second heat exchanger, the first heat exchanger and the first flow regulating valve are sequentially connected via a refrigerant pipeline; When the fan is running and the dehumidification module is performing dehumidification, the first heat exchanger is an evaporator, the second heat exchanger is a condenser, and when the air humidity in the indoor space is less than or equal to a preset humidity, the first flow regulating valve is closed.

2. The system according to claim 1, characterized in that When the first flow regulating valve is closed, the air supply module continues to operate.

3. The system according to claim 1, characterized in that The air humidity of the indoor space is obtained according to the detection result of the first humidity sensor, wherein the first humidity sensor includes at least one of the following: a first type of sensor, a second type of sensor, and a third type of sensor, Wherein, the first type of sensor includes at least one of the following: a sensor disposed at an air inlet of an indoor unit in the indoor space, a sensor disposed at an air outlet of the indoor unit, and a sensor disposed in a first controller in the indoor space and electrically connected to the indoor unit; The second type of sensor includes an external sensor arranged in the indoor space; The third type of sensor includes at least one of the following: a sensor of the return air outlet of the air supply module, and a sensor of a second controller arranged in the indoor space and electrically connected to the air supply module, wherein the air in the indoor space flows into the air supply module from the return air outlet.

4. The system according to claim 3, characterized in that At least one of the first type of sensor, the second type of sensor, and the third type of sensor is selected, and the air humidity of the indoor space is determined according to the detection result of the selected sensor.

5. The system according to claim 4, characterized in that When the first type of sensor is disposed in a plurality of the indoor spaces to detect the first air humidity of each indoor space, the maximum value of the detected first air humidity is used as the detection result of the first type of sensor; or When the second-type sensor is installed in a plurality of the indoor spaces to detect the second air humidity in each indoor space, the maximum value of the detected second air humidity is used as the detection result of the second-type sensor.

6. The system according to claim 5, characterized in that In the case where the first type of sensor includes a plurality of sensors in one of the indoor spaces, determining a first air humidity of the indoor space according to detection results of the plurality of sensors; or In the case where the second type sensor includes a plurality of sensors in one indoor space, the second air humidity of the indoor space is determined according to detection results of the plurality of sensors.

7. The system according to claim 6, characterized in that The first air humidity of the indoor space is the maximum value, the minimum value, or the weighted average value of the detection results of the plurality of sensors of the first type of sensors; or The second air humidity of the indoor space is a maximum value, a minimum value, or a weighted average value of detection results of a plurality of sensors of the second type of sensors.

8. The system according to claim 1, characterized in that When the air supply module operates in an external circulation mode of introducing outdoor air from an air inlet and sending the outdoor air into the indoor space, the first flow regulating valve is opened or closed according to the first absolute humidity of the outdoor air and the second absolute humidity of the air in the indoor space.

9. The system according to claim 8, characterized in that When the first absolute humidity is less than or equal to the second absolute humidity and the air humidity of the indoor space is less than or equal to the preset humidity, closing the first flow regulating valve; or When the first absolute humidity is greater than the second absolute humidity, or the air humidity of the indoor space is greater than the preset humidity, the first flow regulating valve is opened.

10. The system according to claim 8, characterized in that The first absolute humidity of the outdoor air is obtained according to a detection result of a second humidity sensor, wherein the second humidity sensor is disposed at the air inlet of the air supply module or the outdoor unit.

11. The system according to claim 8, characterized in that When the air supply module supplies outdoor air to the plurality of indoor spaces, the second absolute humidity is a minimum value of the absolute humidity of the plurality of indoor spaces.

12. The system according to claim 1, characterized in that The dehumidification module further includes: a fourth heat exchanger, which is arranged at the air path output side of the first heat exchanger and is connected to the first heat exchanger through a refrigerant pipeline.

13. The system according to claim 12, characterized in that When the dehumidification module performs dehumidification, the refrigerant in the air handling system flows in the following manner: The refrigerant gas flowing out from the refrigerant output side of the compressor flows into the second heat exchanger and the fourth heat exchanger; The refrigerant liquid condensed by the second heat exchanger and the fourth heat exchanger converges in the dehumidification unit and is supplied to the first heat exchanger; The refrigerant gas evaporated by the first heat exchanger is supplied to a refrigerant input side of the compressor.

14. The system according to claim 1, characterized in that The indoor unit is arranged in the indoor space, and the indoor unit includes a third heat exchanger, the refrigerant input side of the third heat exchanger is connected to the refrigerant input side of the first heat exchanger, and the refrigerant output side of the third heat exchanger is connected to the refrigerant output side of the first heat exchanger.

15. A control method for an air handling 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 dehumidification module, which is arranged at the air path output side of the air supply module and is used to dehumidify the air output by the air supply module, the dehumidification module comprising a first heat exchanger and a first flow regulating valve arranged at the refrigerant liquid side of the first heat exchanger; An outdoor unit, comprising a compressor and a second heat exchanger, wherein the compressor, the second heat exchanger, the first heat exchanger and the first flow regulating valve are sequentially connected via a refrigerant pipeline; The method comprises: When the fan is running and the dehumidification module is performing dehumidification, the first heat exchanger is an evaporator, the second heat exchanger is a condenser, and when the air humidity in the indoor space is less than or equal to a preset humidity, the first flow regulating valve is closed.

16. The method according to claim 15, characterized in that The method further comprises: When the first flow regulating valve is closed, the air supply module continues to operate.

17. The method according to claim 15, characterized in that The air humidity of the indoor space is obtained according to the detection result of the first humidity sensor, wherein the first humidity sensor includes at least one of the following: a first type of sensor, a second type of sensor, and a third type of sensor, Wherein, the first type of sensor includes at least one of the following: a sensor disposed at an air inlet of an indoor unit in the indoor space, a sensor disposed at an air outlet of the indoor unit, and a sensor disposed in a first controller in the indoor space and electrically connected to the indoor unit; The second type of sensor includes an external sensor arranged in the indoor space; The third type of sensor includes at least one of the following: a sensor of the return air outlet of the air supply module, and a sensor of a second controller arranged in the indoor space and electrically connected to the air supply module, wherein the air in the indoor space flows into the air supply module from the return air outlet.

18. The method according to claim 17, characterized in that The method further comprises: At least one of the first type of sensor, the second type of sensor, and the third type of sensor is selected, and the air humidity of the indoor space is determined according to the detection result of the selected sensor.

19. The method according to claim 18, characterized in that When the first type of sensor is disposed in a plurality of the indoor spaces to detect the first air humidity of each indoor space, the maximum value of the detected first air humidity is used as the detection result of the first type of sensor; or When the second-type sensor is installed in a plurality of the indoor spaces to detect the second air humidity in each indoor space, the maximum value of the detected second air humidity is used as the detection result of the second-type sensor.

20. The method according to claim 19, characterized in that In the case where the first type of sensor includes a plurality of sensors in one of the indoor spaces, determining a first air humidity of the indoor space according to detection results of the plurality of sensors; or In the case where the second type sensor includes a plurality of sensors in one indoor space, the second air humidity of the indoor space is determined according to detection results of the plurality of sensors.

21. The method according to claim 20, characterized in that The first air humidity of the indoor space is the maximum value, the minimum value, or the weighted average value of the detection results of the plurality of sensors of the first type of sensors; or The second air humidity of the indoor space is a maximum value, a minimum value, or a weighted average value of detection results of a plurality of sensors of the second type of sensors.

22. The method according to claim 15, characterized in that The method further comprises: When the air supply module operates in an external circulation mode of introducing outdoor air from an air inlet and sending the outdoor air into the indoor space, the first flow regulating valve is opened or closed according to the first absolute humidity of the outdoor air and the second absolute humidity of the air in the indoor space.

23. The method according to claim 22, characterized in that When the first absolute humidity is less than or equal to the second absolute humidity and the air humidity of the indoor space is less than or equal to the preset humidity, closing the first flow regulating valve; or When the first absolute humidity is greater than the second absolute humidity, or the air humidity of the indoor space is greater than the preset humidity, the first flow regulating valve is opened.

24. The method according to claim 23, characterized in that The first absolute humidity of the outdoor air is obtained according to a detection result of a second humidity sensor, wherein the second humidity sensor is disposed at the air inlet of the air supply module or the outdoor unit.

25. The method according to claim 23, characterized in that When the air supply module supplies outdoor air to the plurality of indoor spaces, the second absolute humidity is a minimum value of the absolute humidity of the plurality of indoor spaces.

26. The method according to claim 15, characterized in that The dehumidification module further includes: a fourth heat exchanger, which is arranged at the air path output side of the first heat exchanger and is connected to the first heat exchanger through a refrigerant pipeline. The method further includes: When the dehumidification module performs dehumidification, the refrigerant in the air handling system flows in the following manner: the refrigerant gas flowing out from the refrigerant output side of the compressor flows into the second heat exchanger and the fourth heat exchanger; the refrigerant liquid condensed by the second heat exchanger and the fourth heat exchanger converges in the dehumidification unit and is supplied to the first heat exchanger; the refrigerant gas evaporated by the first heat exchanger is supplied to the refrigerant input side of the compressor.

Images