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. In the air treatment system, a dehumidification module dehumidifies air output by an air supply module with a fan, when the condition that the dehumidification capacity is insufficient is met, by reducing the air volume of the fan of the air supply module, the load of the dehumidification module can be reduced when the dehumidification capacity is insufficient, and therefore the dehumidification capacity and the indoor dehumidification effect can be guaranteed, and the dehumidification efficiency is improved. And the reduction of user comfort is avoided.

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, during dehumidification operation, the heat exchanger in the dehumidification equipment acts as an evaporator and the heat exchanger in the outdoor unit acts as a condenser. However, in certain application scenarios, when the dehumidification capacity of the dehumidification equipment is insufficient or the load on the dehumidification equipment is large, the indoor dehumidification effect cannot be guaranteed, resulting in a decrease in user comfort.

[0006] For example, when the capacity of the heat exchanger in the dehumidification device is insufficient, the indoor dehumidification effect cannot be improved by increasing the capacity of the heat exchanger, resulting in poor dehumidification effect and a worse user experience; or, when the humidity of the outdoor air is high, the load of the dehumidification device is large, resulting in poor dehumidification effect and a worse user experience.

[0007] 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, which can ensure the indoor dehumidification efficiency and avoid the decrease of user comfort when the dehumidification capacity of the dehumidification equipment is insufficient or the dehumidification equipment load is large.

[0008] According to a first aspect of an embodiment of the present application, an air treatment system is provided, which includes: an air supply module, which is used to introduce air, and the air supply module has a fan; a dehumidification module, which is arranged on the output side of the air supply module, and is used to dehumidify the air output by the air supply module, and the dehumidification module has a first heat exchanger; and an outdoor unit, which has a compressor and a second heat exchanger, and the compressor, the second heat exchanger and the first heat exchanger are connected in sequence through a refrigerant pipeline. When the dehumidification module is used for dehumidification, the first heat exchanger operates as an evaporator and the second heat exchanger operates as a condenser. When the condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced.

[0009] 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 is used to introduce air, and the air supply module has a fan; a dehumidification module, which is arranged at the output side of the air supply module, and is used to dehumidify the air output by the air supply module, and the dehumidification module has a first heat exchanger; and an outdoor unit, which has a compressor and a second heat exchanger, and the compressor, the second heat exchanger and the first heat exchanger are connected in sequence through a refrigerant pipeline. The control method comprises: when dehumidification is performed using the dehumidification module, the first heat exchanger operates as an evaporator and the second heat exchanger operates as a condenser, and when the condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced.

[0010] One of the beneficial effects of the embodiments of the present application is that in an air treatment system, a dehumidification module dehumidifies the air output by an air supply module with a fan. When the condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced. Therefore, when the dehumidification capacity is insufficient, the load of the dehumidification module can be reduced, thereby ensuring the dehumidification capacity and the indoor dehumidification effect and avoiding a decrease in user comfort.

[0011] 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.

[0012] 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.

[0013] 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

[0014] 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.

[0015] In the attached picture:

[0016] Figure 1 is a schematic diagram of an air treatment system according to Example 1 of the present application;

[0017] Figure 2 is another schematic diagram of the air treatment system of Example 1 of the present application;

[0018] Figure 3 is a block diagram of an implementation of a control method for an air treatment system of Example 2 of the present application;

[0019] Figure 4 It is a flow chart of the control method of the air treatment system of Example 2 of the present application. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present application will be described below with reference to the accompanying drawings.

[0021] Example 1

[0022] Embodiment 1 of the present application provides an air treatment system.

[0023] Figure 1 Schematic diagram of the air treatment system of Example 1 of the present application. Figure 1 In the figure, the solid arrow indicates the flow direction of the air inside the air supply module, and the hollow arrow indicates the flow direction of the air outside the air supply module.

[0024] Figure 2 It is another schematic diagram of the air treatment system of Example 1 of the present application. Figure 2 and Figure 1 The same air handling system 100 is shown. Figure 2 In the figure, the solid arrow indicates the flow direction of the refrigerant, and the hollow arrow indicates the flow direction of the air outside the air supply module.

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

[0026] An air supply module 110 is used to introduce air, and the air supply module 110 has a fan 111;

[0027] a dehumidification module 120 disposed at the output side of the air supply module 110 and configured to dehumidify the air output by the air supply module 110, wherein the dehumidification module 120 has a first heat exchanger 121; and

[0028] The outdoor unit 130 includes a compressor 131 and a second heat exchanger 132. The compressor 131, the second heat exchanger 132 and the first heat exchanger 121 are connected in sequence through a refrigerant pipeline.

[0029] In some embodiments, the air supply module 110 and the dehumidification module 120 may be disposed in one housing, or the air supply module 110 and the dehumidification module 120 may be disposed in different housings, respectively.

[0030] 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).

[0031] For example, the fan 111 is used to form an airflow, thereby introducing air into the room;

[0032] like Figure 1 As shown, the air supply module 110 includes an outdoor air inlet (OA), an outdoor exhaust outlet (EA), an indoor air supply outlet (SA), and an indoor return air outlet (RA); wherein a first air circuit is formed between the outdoor air inlet (OA) and the indoor air supply outlet (SA), and a second air circuit is formed between the indoor return air outlet (RA) and the outdoor exhaust outlet (EA).

[0033] In addition, in some embodiments, the air supply module 110 may further include another fan 112 for exhausting air to the outdoors and a total heat exchanger 113, and the total heat exchanger 113 performs heat exchange between the air in the first air circuit and the air in the second air circuit.

[0034] For example, the fan 111 is used to form an airflow so as to introduce air into the room through the indoor air supply port (SA).

[0035] For example, Figure 1As shown, a first air circuit is formed between OA and SA; a second air circuit is formed between RA and EA; and the total heat exchanger 113 performs heat exchange between the air in the first air circuit and the second air circuit.

[0036] In some embodiments, the air supply module 110 has internal circulation and external circulation functions. For example, in the internal circulation mode, air circulates between SA and RA ( Figure 1 In the external circulation mode, air enters from OA and is discharged from SA, and then enters from RA and is discharged from EA (as shown in FIG. Figure 1 shown);

[0037] In some embodiments, the air supply module 110 does not have an internal circulation function, for example Figure 1 As shown, air enters from OA and is discharged from SA, and then enters from RA and is discharged from EA.

[0038] In some embodiments, the air supply module 110 and the dehumidification module 120 are independently arranged and connected via an air duct 150; the control substrate 114 of the air supply module 110 and the control substrate 123 of the dehumidification module are independently arranged and electrically connected.

[0039] For example, Figure 1 As shown, the control substrate 114 of the air supply module 110 and the control substrate 123 of the dehumidification module are electrically connected through the air conditioning communication line 170.

[0040] For example, Figure 1 and Figure 2 As shown, the dehumidification module 120 is arranged at the 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 the refrigerant, and at this time, the first heat exchanger 121 operates as an evaporator.

[0041] In some embodiments, the dehumidification module 120 further includes: a fourth heat exchanger 122 or an electric heater, which is used to heat the air passing through the first heat exchanger 121 .

[0042] In some embodiments, the refrigerant input side of the fourth heat exchanger 122 is connected to the refrigerant input side of the first heat exchanger 121 , and the refrigerant output side of the fourth heat exchanger 122 is connected to the refrigerant output side of the first heat exchanger 121 .

[0043] like Figure 1 and Figure 2As shown, the air supply module 110 outputs air to the dehumidification module 120 through the air pipeline 150, the dehumidification module 120 dehumidifies the air output by the air supply module 110, and the fourth heat exchanger 122 heats the air passing through the first heat exchanger 121, and introduces the dehumidified air into multiple indoor spaces through the air pipeline 150; thereby, the user's comfort can be further improved.

[0044] For example, the electric heater is a PTC electric heater, which is an electric heater based on a semiconductor material and performs heating using the characteristics of a PTC (Positive Temperature Coefficient) material.

[0045] In some embodiments, the dehumidification module 120 has an air outlet, for example Figure 1 As shown, the air outlet of the dehumidification module 120 is connected to the air pipeline 150, and the air pipeline 150 is divided into multiple branches, which respectively introduce the dehumidified air into different indoor spaces;

[0046] Alternatively, the dehumidification module 120 may also have a plurality of air outlets, each of which introduces the dehumidified air into different indoor spaces through an air pipeline. Figure 1 and Figure 2 As shown, the outdoor unit 130 includes a compressor 131 and a second heat exchanger 132 . In addition, the outdoor unit 130 may further include a bypass circuit 133 , a liquid storage tank 134 , and a pressure sensor 135 .

[0047] The compressor 131, the second heat exchanger 132 and the first heat exchanger 121 are connected in sequence through a refrigerant pipeline, that is, starting from the output side of the compressor 131, the refrigerant flows through the compressor 131, the second heat exchanger 132 and the first heat exchanger 121 in sequence; the refrigerant flowing through the first heat exchanger 121 flows to the input side of the compressor 131 after passing through the liquid storage tank 134.

[0048] In some embodiments, Figure 1 and Figure 2 As shown, the air handling system 100 further includes an indoor unit 140, and the indoor unit 140 includes a third heat exchanger 141, a refrigerant input side of the third heat exchanger 141 is connected to a refrigerant input side of the first heat exchanger 121, and a refrigerant output side of the third heat exchanger 141 is connected to a refrigerant output side of the first heat exchanger 121. In addition, the indoor unit 140 further includes a fan 142.

[0049] For example, the indoor unit 140 is electrically connected to the air supply module 110 , and the indoor unit 140 is electrically connected to the air supply module 110 through the air conditioning communication line 170 .

[0050] For example, the indoor unit 140 further has a corresponding controller 180 , and the controller 180 is electrically connected to the indoor unit via a wired line 190 .

[0051] 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.

[0052] 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 dehumidification module 120 after dehumidification can be respectively delivered to the multiple indoor spaces through air pipelines. In each indoor space, an indoor unit 140 is respectively arranged.

[0053] In addition, in some embodiments, the indoor unit 140 may be installed in some spaces, while not installed in other spaces.

[0054] In some embodiments, Figure 2 As shown, the indoor unit 140 may further include a fifth heat exchanger 143 .

[0055] In some embodiments, the outdoor unit 130, the indoor unit 140, the first heat exchanger 121, and the fourth heat exchanger 122 are connected via a refrigerant pipeline.

[0056] For example, Figure 1 and Figure 2 As shown, the refrigerant pipeline includes a refrigerant gas pipeline 160, which is input into the third heat exchanger 141 and the first heat exchanger 121 of the indoor unit 140; the refrigerant pipeline includes a refrigerant liquid pipeline 161, and the refrigerant pipeline also includes refrigerant high and low pressure pipelines 162, which are connected to the fourth heat exchanger 122.

[0057] In some embodiments, the refrigerant gas discharged from the compressor 131 of the outdoor unit 130 flows into the second heat exchanger 141 and the fourth heat exchanger 122, the refrigerant liquid condensed by the second heat exchanger 141 and the fourth heat exchanger 122 converges in the dehumidification module 120 and is supplied to the first heat exchanger 121, and the refrigerant gas evaporated by the first heat exchanger 121 flows to the input side of the compressor 131.

[0058] like Figure 2As shown, starting from the output side of the compressor 131, the refrigerant gas is input to the second heat exchanger 132 and the fourth heat exchanger 122 through the refrigerant gas pipeline 160, and then the refrigerant liquid formed after cooling by the second heat exchanger 141 and the fourth heat exchanger 122 is converged in the dehumidification module 120 through the refrigerant liquid pipeline 161, for example, Figure 2 The refrigerant gas is converged at P1 and supplied to the first heat exchanger 121 , and then the refrigerant gas evaporated by the first heat exchanger 121 flows to the input side of the compressor 131 through the refrigerant gas pipeline 160 .

[0059] In some embodiments, the pressure sensor 135 of the outdoor unit 130 is used to detect the pressure on the input side of the compressor 131. For example, when the pressure detected by the pressure sensor 135 is higher than a preset pressure, the air volume of the fan 111 of the air supply module 110 is stopped from increasing, or the refrigerant flow rate of the first heat exchanger 121 of the dehumidification module 120 is stopped from decreasing. In this way, the safety of the system operation can be ensured.

[0060] In some embodiments, the bypass circuit 133 of the outdoor unit 130 is used to control the refrigerant flow rate, for example, by increasing the refrigerant flow rate of the bypass circuit 133 of the outdoor unit 130 to reduce the refrigerant flow rate flowing into the first heat exchanger 121 of the dehumidification module 120. In this way, the refrigerant flow rate flowing into the first heat exchanger 121 can be effectively controlled through simple operations.

[0061] like Figure 2 As shown, the bypass circuit 133 bypasses from between the first heat exchanger 121 and the fourth heat exchanger 132 to the input side of the compressor 131, and the bypass circuit 133 has a valve 136 for adjusting the refrigerant flow rate. By adjusting the valve 136, the refrigerant flow rate in the bypass circuit 133 is increased, thereby reducing the refrigerant flow rate of the first heat exchanger 121 flowing into the dehumidification module 120. For example, the valve 136 is a solenoid valve SV or an electric valve EVT.

[0062] 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.

[0063] 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.

[0064] For example, an air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit.

[0065] For example, the air conditioning system includes an outdoor unit and at least two indoor units connected to the outdoor unit.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] In some embodiments, the air treatment system of the present application further includes a network device, for example, the network device includes a cloud server 201, a router 202, a repeater 203 (such as an intelligent gateway) 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] For example, a user can control an APP on a terminal device to control an air handling system through a network device.

[0072] In an embodiment of the present application, when dehumidification is performed using the dehumidification module 120, the first heat exchanger 121 of the dehumidification module 120 operates as an evaporator, and the second heat exchanger 132 of the outdoor unit 130 operates as a condenser. When the condition of insufficient dehumidification capacity is met, the air volume of the fan 111 of the air supply module 110 is reduced, for example, the air volume of the fan 111 is reduced to below a preset air volume.

[0073] In this way, when the dehumidification capacity of the dehumidification equipment is insufficient or the load of the dehumidification equipment is large, the air volume of the fan 111 of the air supply module 110 is reduced, that is, the flow rate of air entering the dehumidification module 120 is reduced. Therefore, when the dehumidification capacity is insufficient, the load of the dehumidification module 120 can be reduced, thereby ensuring the dehumidification capacity and indoor dehumidification effect and avoiding a decrease in user comfort.

[0074] For example, the air volume level of the fan 111 of the air supply module 110 is adjusted from the current level to a lower level or the lowest level, such as adjusting the fan 111 from the storm level to the strong level or the low level, so that the air with high humidity introduced can be reduced, and the load of the dehumidification module 120 can be reduced when the dehumidification capacity is insufficient. In addition, in the internal circulation mode, the air volume level of the fan 111 can be adjusted to a low level.

[0075] In some embodiments, the condition of insufficient dehumidification capacity includes: the temperature of the first heat exchanger 121 is higher than the first threshold value; wherein the temperature of the first heat exchanger 121 is determined according to the measurement value of the temperature sensor disposed in the refrigerant pipeline of the first heat exchanger 121. Thus, it is possible to directly determine whether the dehumidification capacity is insufficient according to the measurement value of the temperature sensor, that is, the evaporation temperature, without the need to set a humidity sensor, thereby reducing costs and facilitating maintenance and replacement.

[0076] In some embodiments, the first threshold may be set according to actual conditions.

[0077] For example, Figure 1 As shown, the temperature sensor can be set Figure 1 At Q1 shown, the first threshold is set to "10 degrees". When the temperature measured by the temperature sensor set at Q1 is greater than "10 degrees", it is determined that the condition of insufficient dehumidification capacity is met. That is, when the evaporation temperature of the first heat exchanger 121 is measured to be high, it is judged that the dehumidification capacity of the first heat exchanger 121 is insufficient, and the condition of insufficient dehumidification capacity is met.

[0078] In some embodiments, the condition of insufficient dehumidification capacity includes: the humidity of the air output from the air supply module 110 to the dehumidification module 120 is higher than a second threshold, wherein the humidity of the air output from the air supply module 110 to the dehumidification module 120 is determined based on the measurement value of a humidity sensor disposed at any position on the air flow path between the indoor air outlet of the air supply module 110 and the dehumidification module 120. Thus, the load condition of the dehumidification module 120 can be accurately determined, and the accuracy of dehumidification control can be improved.

[0079] In some embodiments, the second threshold value can be set according to actual conditions, for example, according to a user's setting value for indoor humidity.

[0080] For example, Figure 1 As shown, the humidity sensor can be set Figure 1At any position on the air path from Q2 to Q3 shown, the second threshold is set to "50%". For example, the humidity sensor is set at Q2. When the humidity measured by the humidity sensor is greater than "50%", it is determined that the condition of insufficient dehumidification capacity is met. That is, when the air humidity input to the dehumidification module 120 is measured to be high, the load of the dehumidification module is high, and the condition of insufficient dehumidification capacity is met.

[0081] In some embodiments, the condition of insufficient dehumidification capacity includes: the temperature of the first heat exchanger 121 is higher than the first threshold value and the humidity of the air output from the air supply module 110 to the dehumidification module 120 is higher than the second threshold value; wherein, the temperature of the first heat exchanger 121 is determined according to the measurement value of the temperature sensor disposed in the refrigerant pipeline of the first heat exchanger 121, and the humidity of the air output from the air supply module 110 to the dehumidification module 120 is determined according to the measurement value of the humidity sensor disposed at any position on the air flow path between the indoor air outlet of the air supply module 110 and the dehumidification module 120. Thus, it is possible to determine whether the dehumidification capacity is insufficient according to the measurement value of the temperature sensor, i.e., the evaporation temperature, and the load condition of the dehumidification module 120, thereby further ensuring the dehumidification capacity and dehumidification effect.

[0082] For example, Figure 1 As shown, the temperature sensor can be set Figure 1 At Q1 shown in the figure, the first threshold is set to "10 degrees", and the humidity sensor can be set Figure 1 At any position on the air path from Q2 to Q3 shown in the figure, the second threshold value is set to "50%".

[0083] For example, when the temperature measured by the temperature sensor provided at Q1 is greater than "10 degrees" and the humidity measured by the humidity sensor provided at Q2 is greater than "50%", it is determined that the condition of insufficient dehumidification capacity is satisfied.

[0084] In some embodiments, the conditions for insufficient dehumidification capacity include: the humidity of the indoor space corresponding to the dehumidification module 120 is higher than a third threshold value; wherein, the humidity of the indoor space corresponding to the dehumidification module 120 is determined based on the measurement value of a sensor at the suction port of the indoor unit 140 or the blowing port of the indoor unit 140 or the controller 180 corresponding to the indoor unit 140 arranged in the indoor space; or, the humidity of the indoor space corresponding to the dehumidification module 120 is determined based on the measurement value of an external sensor arranged in the indoor space; or, the humidity of the indoor space corresponding to the dehumidification module 120 is determined based on the measurement value of a sensor at the indoor air return port of the air supply module 110.

[0085] Therefore, through the measurement values ​​of the above-mentioned sensors and the determination method, the load condition of the dehumidification module 120 can be accurately judged, thereby improving the accuracy of dehumidification control.

[0086] For example, the controller 180 corresponding to the indoor unit 140 is at least one of a centralized controller, a wired controller, and a remote controller.

[0087] For example, the humidity of the indoor space corresponding to the dehumidification module 120 is determined based on the measurement values ​​of a sensor set at the suction port of the indoor unit 140 or the blowing port of the indoor unit 140 or in the controller 180 corresponding to the indoor unit 140 and a sensor at the indoor air return port of the air supply module 110. The above-mentioned sensors are built-in sensors. For example, the sensor in the controller 180 corresponding to the indoor unit 140 is built into the controller 180.

[0088] In some embodiments, the humidity of the indoor space corresponding to the dehumidification module 120 can also be determined based on the measurement values ​​of the external sensors respectively arranged in each indoor space. In some embodiments, the third threshold value can be set according to the actual situation. For example, it can be determined according to the set value of the indoor humidity by the user.

[0089] In this way, when it is determined that the air humidity of the indoor space corresponding to the dehumidification module 120 is relatively high, the load of the dehumidification module is relatively high, and the condition of insufficient dehumidification capacity is met.

[0090] In some embodiments, after reducing the air volume of the fan 111 of the air supply module 110 and after the first preset time, if the condition of insufficient dehumidification capacity is still met, the air volume output by the air supply module 110 is reduced again. In this way, the introduced air can be further reduced, and the load of the dehumidification module 120 can be further reduced, so that the dehumidification capacity and the indoor dehumidification effect can be guaranteed, and the user's comfort level can be avoided from being reduced.

[0091] For example, the "first preset time" is 10 minutes. After the air volume of the fan 111 of the air supply module 110 is reduced and 10 minutes have passed, it is determined whether the condition of insufficient dehumidification capacity is still met according to the above method. If the condition of insufficient dehumidification capacity is still met, the air volume output by the air supply module 110 is reduced again.

[0092] For example, after the air volume level of the fan 111 of the air supply module 110 is lowered from the storm level to the strong level, after 10 minutes, if the condition of insufficient dehumidification capacity is still met, for example, the temperature measured by the temperature sensor at Q1 is higher than "30 degrees", the air volume level of the fan 111 of the air supply module 110 is again lowered from the strong level to the low level.

[0093] In some embodiments, after reducing the air volume of the fan 111 of the air supply module 110 and after the second preset time, when the condition of insufficient dehumidification capacity is still met, the frequency of the compressor 131 of the outdoor unit 130 is increased; wherein the compressor 131 is a variable frequency compressor, for example, a variable frequency compressor with an inverter. In this way, the evaporation capacity of the first heat exchanger 121 can be increased by increasing the refrigerant circulation volume of the compressor, thereby ensuring the dehumidification capacity and the indoor dehumidification effect, and avoiding the decrease of user comfort.

[0094] For example, the "second preset time" may be the same as or different from the "first preset time". For example, the "second preset time" may also be 10 minutes. After reducing the air volume of the fan 111 of the air supply module 110 and 10 minutes have passed, determine whether the condition of insufficient dehumidification capacity is still met according to the aforementioned method. If the condition of insufficient dehumidification capacity is still met, increase the frequency of the compressor 131 of the outdoor unit 130.

[0095] For example, after the air volume level of the fan 111 of the air supply module 110 is lowered from the storm level to the strong level, after 10 minutes, if the condition of insufficient dehumidification capacity is still met, for example, the humidity measured by the humidity sensor at Q2 is higher than "50%", the frequency of the compressor 131 of the outdoor unit 130 is increased, and the refrigerant circulation volume output by the compressor to the first heat exchanger 121 is increased.

[0096] In some embodiments, after reducing the air volume of the fan 111 of the air supply module 110 and increasing the frequency of the compressor 131 of the outdoor unit 130 and after a certain period of time, when the condition of insufficient dehumidification capacity is still met, if the air volume of the fan 111 continues to be reduced, the evaporation temperature of the dehumidification module 120 or the indoor unit 140 may be too low, resulting in a risk of freezing in the dehumidification module 120, the indoor unit 140 or the air duct; if the frequency of the compressor 131 of the outdoor unit 130 continues to be increased, the temperature and pressure of the compressor 131 may be too high, thereby reaching the operating limit of the compressor and damaging the compressor, thereby causing the air treatment system to be at risk of shutdown.

[0097] Thus, after reducing the air volume of the fan 111 of the air supply module 110 and after the third preset time, when the condition of insufficient dehumidification capacity is still met, the air volume of the fan 111 of the air supply module 110 is increased or the current air volume of the fan 111 is maintained unchanged.

[0098] Alternatively, after reducing the air volume of the fan 111 of the air supply module 110 and increasing the frequency of the compressor 131 of the outdoor unit 130 and after a third preset time, when the condition of insufficient dehumidification capacity is still met, the air volume of the fan 111 of the air supply module 110 is increased or the current air volume of the fan 111 is maintained unchanged, and the frequency of the compressor 131 of the outdoor unit 130 is reduced or the current frequency of the compressor 131 of the outdoor unit 130 is maintained unchanged.

[0099] In this way, the reduction of air volume and the increase of compressor frequency can be stopped in time, the efficiency of air circulation can be improved, the service life of the air treatment system and the risk of system shutdown can be avoided, the user's health can be guaranteed while dehumidification, and the user experience can be improved.

[0100] In some embodiments, increasing the air volume of the fan 111 of the air supply module 110 may be to restore the air volume of the fan 111 of the air supply module 110 to the air volume before being decreased, or may be to increase the air volume to another level.

[0101] In some embodiments, lowering the frequency of the compressor 131 of the outdoor unit 130 may be restoring the frequency of the compressor 131 of the outdoor unit 130 to the frequency before being increased, or may be lowering the frequency to another frequency.

[0102] For example, the "third preset time" is 30 minutes. After the air volume of the fan 111 of the air supply module 110 is reduced and 30 minutes have passed, it is determined whether the condition of insufficient dehumidification capacity is still met according to the aforementioned method. If the condition of insufficient dehumidification capacity is still met, the air volume of the fan 111 is increased to the air volume before the reduction.

[0103] For example, after 30 minutes have passed since the air volume level of the fan 111 of the air supply module 110 was lowered from the storm level to the strong level, if the condition of insufficient dehumidification capacity is still met, for example, the humidity measured by the humidity sensor at Q3 is higher than "50%", the air volume level of the fan 111 of the air supply module 110 is adjusted back from the strong level to the storm level.

[0104] For example, the "first preset time" is 10 minutes and the "third preset time" is 30 minutes. After the air volume gear of the fan 111 of the air supply module 110 is lowered from the storm gear to the strong gear, 10 minutes have passed, when the condition of insufficient dehumidification capacity is still met, the frequency of the compressor 131 of the outdoor unit 130 is increased from 50Hz to 80Hz. After 20 minutes have passed again, when the condition of insufficient dehumidification capacity is still met, for example, the humidity measured by the humidity sensor at Q3 is higher than "50%", the compressor 131 of the outdoor unit 130 is lowered to the frequency before the increase, that is, the frequency of the compressor 131 of the outdoor unit 130 is lowered from 80Hz to 50Hz, and the air volume gear of the fan 111 of the air supply module 110 is adjusted back to the storm gear from the strong gear.

[0105] In some embodiments, the air treatment system further includes a controller, and after receiving an instruction from the controller, the air supply module 110 adjusts the air volume of the fan 111 of the air supply module 110 to the air volume before the reduction; wherein the controller is electrically connected to the air supply module 110. Thus, the user can terminate the reduction adjustment of the air volume in a timely manner, which ensures the user's health while dehumidifying and improves the user experience. For example, Figure 1 As shown, the controller 181 is electrically connected to the air supply module 110 via a wired line 191 .

[0106] For example, the controller 181 corresponding to the air supply module 110 is at least one of a centralized controller, a wired controller, and a remote controller.

[0107] For example, when the user feels that the indoor air is not circulated, is not fresh, or the sensor detects that the concentration of harmful gases in the room is high, the user can adjust the air volume of the fan 111 of the air supply module 110 to reduce the previous air volume through the controller 181. For some harmful gases in the room, such as carbon dioxide (CO2), formaldehyde, total volatile organic compounds (Total Volatile Organic Compounds, TVOC), etc.

[0108] In some embodiments, the air handling system further includes a control module, which is used to perform relevant controls to cope with insufficient dehumidification capacity, for example, controlling the air volume of the fan 111 of the air supply module 110.

[0109] For example, the control module is set in the dehumidification module 120. When it is determined that the condition of insufficient dehumidification capacity is met, the control module generates a control instruction for adjusting the air volume and sends the control instruction to the air supply module 110. After receiving the instruction, the air supply module 110 adjusts the air volume of the fan 111.

[0110] In addition, the control module is, for example, the control substrate 123 of the dehumidification module 120 .

[0111] According to the above embodiment, in the air handling system, when the dehumidification module is used for dehumidification, when the condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced, for example, the air volume of the fan is reduced to below the preset air volume. In this way, when the dehumidification capacity of the dehumidification device is insufficient or the load of the dehumidification device is large, the air volume of the fan of the air supply module is reduced, that is, the flow rate of air entering the dehumidification module is reduced by reducing the air volume of the fan of the air supply module, so that when the dehumidification capacity is insufficient, the load of the dehumidification module can be reduced, so that the dehumidification capacity and the indoor dehumidification effect can be guaranteed, and the user's comfort level can be avoided from decreasing.

[0112] Example 2

[0113] 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.

[0114] Figure 3 is a block diagram of an implementation method of the air treatment system control method of Example 2 of the present application. Figure 3 As shown, the method includes:

[0115] Step 301: When dehumidification is performed using a dehumidification module and a condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced.

[0116] In some embodiments, the condition of insufficient dehumidification capacity includes: the temperature of the first heat exchanger is higher than a first threshold; wherein the temperature of the first heat exchanger is determined based on a measurement value of a temperature sensor disposed in a refrigerant pipeline of the first heat exchanger.

[0117] In some embodiments, the condition for insufficient dehumidification capacity includes: the humidity of the air output by the air supply module to the dehumidification module is higher than a second threshold, wherein the humidity of the air output by the air supply module to the dehumidification module is determined based on the measurement value of a humidity sensor arranged at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

[0118] In some embodiments, the condition for insufficient dehumidification capacity includes: the temperature of the first heat exchanger is higher than a first threshold value and the humidity of the air output by the air supply module to the dehumidification module is higher than a second threshold value; wherein, the temperature of the first heat exchanger is determined based on the measurement value of a temperature sensor arranged in the refrigerant pipeline of the first heat exchanger, and the humidity of the air output by the air supply module to the dehumidification module is determined based on the measurement value of a humidity sensor arranged at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

[0119] In some embodiments, the condition for insufficient dehumidification capacity includes: the indoor humidity corresponding to the dehumidification module is higher than a third threshold value; wherein, the indoor humidity corresponding to the dehumidification module is determined based on at least one of the following: the indoor humidity corresponding to the dehumidification module is determined based on the measurement value of a sensor set at the suction port of the indoor unit or the blowing port of the indoor unit or in the controller corresponding to the indoor unit; the indoor humidity corresponding to the dehumidification module is determined based on the measurement value of an external sensor set in the indoor space; or, the indoor humidity corresponding to the dehumidification module is determined based on the measurement value of a sensor at the indoor air return port of the air supply module.

[0120] In some embodiments, Figure 3 As shown, after step 301, the method may further include:

[0121] Step 302: After reducing the air volume of the fan of the air supply module and after a first preset time, if the condition of insufficient dehumidification capacity is still met, reducing the air volume output by the air supply module again;

[0122] In some embodiments, Figure 3 As shown, after step 301, the method may further include:

[0123] Step 303: after reducing the air volume of the fan of the air supply module and after a second preset time, if the condition of insufficient dehumidification capacity is still met, increasing the frequency of the compressor of the outdoor unit;

[0124] In some embodiments, Figure 3 As shown, after step 301, the method may further include:

[0125] Step 304: after reducing the air volume of the fan of the air supply module and after a third preset time, if the condition of insufficient dehumidification capacity is still met, increasing the air volume of the fan or maintaining the current air volume of the fan unchanged;

[0126] In some embodiments, Figure 3 As shown, after step 301, the method may further include:

[0127] Step 305: After receiving the instruction from the controller, the air supply module adjusts the air volume of the fan of the air supply module to reduce the previous air volume.

[0128] exist Figure 3 In the embodiment, steps 302-305 are optional steps.

[0129] In addition, in some embodiments, step 304 or step 305 may be executed after step 302 or step 303 is executed.

[0130] For example, if the dehumidification capacity is still insufficient after 10 minutes after the air volume of the fan of the air supply module is reduced, the air volume of the fan is reduced again. If the dehumidification capacity is still insufficient after 20 minutes, the air volume of the fan can be increased, for example, adjusted to the previous air volume that was reduced, that is, the initial air volume.

[0131] For another example, if the dehumidification capacity is still insufficient after 10 minutes after the air volume of the fan of the air supply module is reduced, the air volume of the fan is reduced again, and after 5 minutes, an instruction is received from the controller, then the air volume of the fan is increased, for example, adjusted to the previous air volume that was reduced, that is, the initial air volume.

[0132] Figure 4 is a flow chart of a control method of an air treatment system according to Embodiment 3 of the present application. Figure 4 As shown, the method includes:

[0133] Step 401: Determine whether the condition of insufficient dehumidification capacity is met; when the judgment result is "yes", enter step 402, when the judgment result is "no", return;

[0134] Step 402: reducing the air volume of the fan of the air supply module, for example, adjusting the air volume level of the fan of the air supply module from the current storm level to a strong level;

[0135] Step 403: a first preset time has passed, for example, 10 minutes has passed;

[0136] Step 404: Determine whether the condition of insufficient dehumidification capacity is met; when the judgment result is "yes", go to step 405, when the judgment result is "no", return;

[0137] Step 405: increasing the frequency of the compressor of the outdoor unit;

[0138] For example, the above step 403 may also be replaced by: after a second preset time, for example, after 10 minutes, the corresponding above step 405 may be replaced by: reducing the air volume output by the air supply module again, for example, lowering the air volume gear of the fan of the air supply module from a strong gear to a low gear;

[0139] Step 406: after “the third preset time minus the first preset time”, for example, the third preset time is 30 minutes, the first preset time is 10 minutes, and after 30 minutes-10 minutes=20 minutes, execute step 407;

[0140] Step 407: Determine whether the condition of insufficient dehumidification capacity is met; when the judgment result is "yes", go to step 408, when the judgment result is "no", return;

[0141] Step 408: Increase the air volume of the fan of the air supply module or maintain the current air volume of the fan unchanged, and decrease the frequency of the compressor of the outdoor unit or maintain the current frequency of the compressor of the outdoor unit unchanged.

[0142] For example, after a long period of time has passed since the fan air volume was lowered and the compressor frequency was increased, even if the dehumidification capacity is still insufficient, the fan air volume is increased or the current fan air volume is maintained unchanged, and the frequency of the compressor 131 of the outdoor unit 130 is lowered or the current frequency of the compressor 131 of the outdoor unit 130 is maintained unchanged, so that the adjustment process can be terminated in a timely manner. That is, after executing step 408, the process is terminated.

[0143] The specific implementation of the above steps can refer to the relevant records in Example 1, and will not be repeated here.

[0144] According to the above embodiment, in the air handling system, when the dehumidification module is used for dehumidification, when the condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced, for example, the air volume of the fan is reduced to below the preset air volume. In this way, when the dehumidification capacity of the dehumidification device is insufficient or the load of the dehumidification device is large, the air volume of the fan of the air supply module is reduced, that is, the flow rate of air entering the dehumidification module is reduced by reducing the air volume of the fan of the air supply module, so that when the dehumidification capacity is insufficient, the load of the dehumidification module can be reduced, so that the dehumidification capacity and the indoor dehumidification effect can be guaranteed, and the user's comfort level can be avoided from decreasing.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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 air handling system comprises: An air supply module, which is used to introduce air, and the air supply module has a fan; a dehumidification module, which is arranged at the output side of the air supply module and is used to dehumidify the air output by the air supply module, and the dehumidification module has a first heat exchanger; and The outdoor unit comprises a compressor and a second heat exchanger, wherein the compressor, the second heat exchanger and the first heat exchanger are connected in sequence through a refrigerant pipeline. When dehumidification is performed using the dehumidification module, the first heat exchanger operates as an evaporator and the second heat exchanger operates as a condenser. When a condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced.

2. The air treatment system according to claim 1, characterized in that The conditions for insufficient dehumidification capacity include: The temperature of the first heat exchanger is higher than a first threshold; The temperature of the first heat exchanger is determined according to a measurement value of a temperature sensor disposed in a refrigerant pipeline of the first heat exchanger.

3. The air treatment system according to claim 1, characterized in that The conditions for insufficient dehumidification capacity include: The humidity of the air outputted from the air supply module to the dehumidification module is higher than a second threshold value, The humidity of the air output from the air supply module to the dehumidification module is determined based on a measurement value of a humidity sensor disposed at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

4. The air treatment system according to claim 1, characterized in that: The conditions for insufficient dehumidification capacity include: The temperature of the first heat exchanger is higher than a first threshold and the humidity of the air output from the air supply module to the dehumidification module is higher than a second threshold; Among them, the temperature of the first heat exchanger is determined according to the measurement value of the temperature sensor arranged in the refrigerant pipeline of the first heat exchanger, and the humidity of the air output by the air supply module to the dehumidification module is determined according to the measurement value of the humidity sensor arranged at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

5. The air treatment system according to claim 1, characterized in that The conditions for insufficient dehumidification capacity include: The humidity of the indoor space corresponding to the dehumidification module is higher than a third threshold; in, The humidity of the indoor space corresponding to the dehumidification module is determined based on a measurement value of a sensor provided in an air inlet of an indoor unit in the indoor space or an air outlet of the indoor unit or a controller corresponding to the indoor unit; or The humidity of the indoor space corresponding to the dehumidification module is determined according to a measurement value of an external sensor arranged in the indoor space; or, The humidity of the indoor space corresponding to the dehumidification module is determined according to the measurement value of the sensor at the indoor air return outlet of the air supply module.

6. The air treatment system according to claim 1, characterized in that The control substrate of the air supply module and the control substrate of the dehumidification module are independently arranged and electrically connected to each other.

7. The air treatment system according to claim 1, characterized in that After the air volume of the fan of the air supply module is reduced and a first preset time has passed, when the condition of insufficient dehumidification capacity is still met, the air volume output by the air supply module is reduced again.

8. The air treatment system according to claim 1, characterized in that After reducing the air volume of the fan of the air supply module and after a second preset time, when the condition of insufficient dehumidification capacity is still met, increasing the frequency of the compressor of the outdoor unit; wherein the compressor is a variable frequency compressor.

9. The air treatment system according to claim 1, characterized in that: After reducing the air volume of the fan of the air supply module and after a third preset time, when the condition of insufficient dehumidification capacity is still met, the air volume of the fan is increased or the current air volume of the fan is maintained unchanged.

10. The air treatment system according to claim 1, characterized in that The air treatment system further comprises: an indoor unit having 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, The refrigerant output side of the third heat exchanger is connected to the refrigerant output side of the first heat exchanger.

11. The air treatment system according to claim 1, characterized in that The air treatment system further includes a controller. After receiving an instruction from the controller, the outdoor unit adjusts the air volume of the fan of the air supply module to a previous air volume that is reduced. The controller is electrically connected to the air supply module.

12. A control method for an air treatment system, the air treatment system comprising: An air supply module, which is used to introduce air, and the air supply module has a fan; a dehumidification module, which is arranged at the output side of the air supply module and is used to dehumidify the air output by the air supply module, and the dehumidification module has a first heat exchanger; and The outdoor unit comprises a compressor and a second heat exchanger, wherein the compressor, the second heat exchanger and the first heat exchanger are connected in sequence through a refrigerant pipeline. Characterized in that the control method comprises: When dehumidification is performed using the dehumidification module, the first heat exchanger operates as an evaporator and the second heat exchanger operates as a condenser. When a condition of insufficient dehumidification capacity is met, the air volume of the fan of the air supply module is reduced.

13. The control method according to claim 12, characterized in that: The control method further comprises: After the air volume of the fan of the air supply module is reduced and a first preset time has passed, when the condition of insufficient dehumidification capacity is still met, the air volume output by the air supply module is reduced again.

14. The control method according to claim 12, characterized in that: The control method further comprises: After reducing the air volume of the fan of the air supply module and after a second preset time, when the condition of insufficient dehumidification capacity is still met, increasing the frequency of the compressor of the outdoor unit; wherein the compressor is a variable frequency compressor.

15. The control method according to claim 12, characterized in that: The control method further comprises: After reducing the air volume of the fan of the air supply module and after a third preset time, when the condition of insufficient dehumidification capacity is still met, the air volume of the fan is increased or the current air volume of the fan is maintained unchanged.

16. The control method according to claim 12, characterized in that: After receiving an instruction from a controller, the air supply module adjusts the air volume of the fan of the air supply module to reduce the previous air volume; the controller is electrically connected to the air supply module.

17. The control method according to claim 12, characterized in that: The conditions for insufficient dehumidification capacity include: The temperature of the first heat exchanger is higher than a first threshold; The temperature of the first heat exchanger is determined according to a measurement value of a temperature sensor disposed in a refrigerant pipeline of the first heat exchanger.

18. The control method according to claim 12, characterized in that: The conditions for insufficient dehumidification capacity include: The humidity of the air outputted from the air supply module to the dehumidification module is higher than a second threshold value, The humidity of the air output from the air supply module to the dehumidification module is determined based on a measurement value of a humidity sensor disposed at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

19. The control method according to claim 12, characterized in that: The conditions for insufficient dehumidification capacity include: The temperature of the first heat exchanger is higher than a first threshold and the humidity of the air output from the air supply module to the dehumidification module is higher than a second threshold; Among them, the temperature of the first heat exchanger is determined according to the measurement value of the temperature sensor arranged in the refrigerant pipeline of the first heat exchanger, and the humidity of the air output by the air supply module to the dehumidification module is determined according to the measurement value of the humidity sensor arranged at any position on the air flow path between the indoor air outlet of the air supply module and the dehumidification module.

20. The control method according to claim 12, characterized in that: The conditions for insufficient dehumidification capacity include: The humidity of the indoor space corresponding to the dehumidification module is higher than a third threshold; in, The humidity of the indoor space corresponding to the dehumidification module is determined based on a measurement value of a sensor provided in an air inlet of an indoor unit in the indoor space or an air outlet of the indoor unit or a controller corresponding to the indoor unit; or The humidity of the indoor space corresponding to the dehumidification module is determined according to a measurement value of an external sensor arranged in the indoor space; or, The humidity of the indoor space corresponding to the dehumidification module is determined according to the measurement value of the sensor at the indoor air return outlet of the air supply module.

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