Control method of air conditioning system and air conditioning system

Abstract

The invention provides a control method of an air conditioning system and the air conditioning system. When the refrigerant pressure state of the air conditioning system meets the high-pressure protection condition of the outdoor unit, the adjusting valve of the first refrigerant pipeline between the humidifying device and the outdoor unit is closed, and the air volume of the air supply unit is increased, so that the risk of system shutdown caused by refrigerant pressure rise can be reduced, and the user experience can be guaranteed.

Description

Technical Field

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

[0002] With the continuous progress of science and technology and the improvement of living standards, people's requirements for living environment are getting higher and higher. Among them, the temperature and humidity of indoor air are important indicators of living environment. Usually, the air conditioning system can be used to adjust the indoor air. For example, in cold seasons, the temperature and humidity of indoor air are relatively low. The air conditioning system can be set to heating (for example, heating) mode to adjust the temperature and humidity of indoor air to an appropriate range. In the existing air conditioning system, the outdoor unit can be connected to the indoor unit and the humidifier to provide refrigerant to the indoor unit and the humidifier so that the indoor unit and the humidifier can adjust the temperature and humidity of the indoor air.

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

[0004] The inventors have found that in an air-conditioning system, a thermostat unit can be provided in the humidifier to adjust the temperature of the gas in the humidifier, thereby adjusting the humidification efficiency of the humidifier. Since the heat exchange area of ​​the thermostat unit in the humidifier is usually relatively small (for example, smaller than the heat exchange area of ​​the heat exchanger of the indoor unit), when the air-conditioning system is operating in the heating mode, in order to adjust the gas in the humidifier to the expected temperature, the refrigerant in the thermostat unit needs to be set at a higher temperature. This easily causes the refrigerant of the outdoor unit to be set at a higher temperature. In this case, the refrigerant pressure of the outdoor unit is likely to enter a high-pressure state, causing the system to shut down, and the indoor unit connected to the outdoor unit cannot work normally, affecting the user experience.

[0005] In order to solve at least one of the above problems, the embodiments of the present application provide a control method of an air-conditioning system and an air-conditioning system, which can reduce the risk of system shutdown due to increased refrigerant pressure and ensure user experience.

[0006] According to a first aspect of an embodiment of the present application, a control method for an air-conditioning system is provided, wherein the air-conditioning system includes an indoor unit, an outdoor unit, a humidifying device for adjusting air humidity that is connected to the outdoor unit via a first refrigerant pipeline, and an air supply unit for adjusting the air volume of air passing through the humidifying device, wherein the method includes: when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, closing the regulating valve of the first refrigerant pipeline and increasing the air volume of the air supply unit.

[0007] According to the second aspect of an embodiment of the present application, an air-conditioning system is provided, the system comprising: an indoor unit and an outdoor unit; a humidifying device, which is connected to the outdoor unit via a first refrigerant pipeline and is used to adjust the air humidity; and a control module, which executes the control method of the air-conditioning system as described in the first aspect of the embodiment of the present application.

[0008] One of the beneficial effects of the embodiments of the present application is that when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit is closed to increase the air volume of the air supply unit. In this way, the risk of system shutdown due to increased refrigerant pressure can be reduced, and user experience can be guaranteed.

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

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

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

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

[0013] In the attached picture:

[0014] Figure 1 is a schematic diagram of a control method of an air conditioning system according to an embodiment of the present application;

[0015] Figure 2 is a schematic diagram of the structure of the air conditioning system of an embodiment of the present application;

[0016] Figures 3 to 6 is a schematic diagram of a connection method of refrigerant pipelines between an indoor unit, a humidifying device, and an outdoor unit in an embodiment of the present application;

[0017] Figure 7 is a schematic diagram of an implementation method of 101 of an embodiment of the present application;

[0018] Figure 8 is another schematic diagram of the control method of the air conditioning system according to an embodiment of the present application;

[0019] Fig. 9 is another schematic diagram of the control method of the air conditioning system according to an embodiment of the present application;

[0020] Fig.10 is another schematic diagram of the control method of the air-conditioning 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 a control method for an air conditioning system, wherein the air conditioning system comprises an indoor unit, an outdoor unit, a humidifier for adjusting air humidity connected to the outdoor unit via a first refrigerant pipeline, and an air supply unit for adjusting the air volume passing through the humidifier.

[0024] Figure 1 FIG. 1 is a schematic diagram of a control method for an air conditioning system according to an embodiment of the present application. Figure 1 As shown, the method includes:

[0025] Step 101: When the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, close the regulating valve of the first refrigerant pipeline to increase the air volume of the air supply unit.

[0026] According to the above embodiment, when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit is closed to increase the air volume of the air supply unit. In this way, the risk of system shutdown due to increased refrigerant pressure can be reduced and user experience can be guaranteed.

[0027] For example, under normal circumstances, the heat exchange area of ​​the temperature control unit of the humidifier is smaller than the heat exchange area of ​​the heat exchanger of the indoor unit. When the air conditioning system is working in the heating mode, in order to adjust the air introduced by the air supply unit to the desired temperature, the refrigerant in the temperature control unit of the humidifier needs to reach a higher temperature.

[0028] However, since the heat exchange area of ​​the heat exchanger of the indoor unit is larger than the heat exchange area of ​​the temperature regulating unit of the humidifier, when the refrigerant temperature in the temperature regulating unit of the humidifier is greater than the first preset temperature, the refrigerant temperature in the heat exchanger of the indoor unit may still be lower than the first preset temperature. In other words, when the refrigerant pressure state of the humidifier has triggered the high pressure protection condition, the refrigerant temperature of the indoor unit may still be able to meet the normal operation requirements.

[0029] In this case, by closing the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit, the refrigerant can be prevented from flowing between the humidifier and the outdoor unit, thereby preventing the outdoor unit from being affected by the refrigerant in the humidifier and shutting down, thereby avoiding affecting other components in the air-conditioning system that meet normal operation requirements, such as the indoor unit, and ensuring user experience.

[0030] The control method of the embodiment of the present application can be applied to various air-conditioning systems. Figure 2 Schematic diagram of the structure of the air conditioning system of the embodiment of the present application. Figure 2 In the figure, the pipes with arrows connecting modules or devices are air pipes; the solid lines between modules or devices represent refrigerant pipes; and the dotted lines between modules or devices represent communication connections, which can be wired connections or wireless connections.

[0031] like Figure 2 As shown, the air conditioning system 200 includes: an indoor unit 260, an outdoor unit 270, a humidifier 220 for adjusting air humidity connected to the outdoor unit 270 via a first refrigerant pipe 250, and an air supply unit for adjusting the air volume passing through the humidifier 220.

[0032] In some embodiments, the humidifying device 220 has the function of adjusting the humidity of the air, for example, it can humidify the air, and / or, dehumidify the air. For example, the humidifying device 220 may include a humidifying unit and a dehumidifying unit, and switch between the humidifying unit and the dehumidifying unit as needed.

[0033] In some embodiments, the humidification unit may be based on various humidification principles.

[0034] For example, the humidification unit performs humidification based on a wet film, which includes a water storage tank and a wet film. The water in the water storage tank flows into the wet film, and the wet film absorbs water to form a uniform water film. When dry air passes through the wet film, the water molecules fully absorb the heat in the air and vaporize and evaporate, thereby increasing the humidity of the air and forming humid air.

[0035] For another example, the humidification unit humidifies based on waterless humidification. The moisture in the air is adsorbed by the hygroscopic material. The air absorbs moisture through the hygroscopic sector of the humidification wheel. The humidification wheel then dehumidifies through the dehumidification zone. The hot and humid air is sent into the room through the fan.

[0036] For another example, the humidification unit performs humidification based on spray humidification, and the spray humidification directly inputs water vapor into the room through the action of a spray head.

[0037] For another example, the humidification unit performs humidification based on steam humidification. Steam humidification is achieved by separating the steam and water in the saturated steam, and then the dry steam enters the nozzle through a regulating valve and is ejected from the nozzle hole with a sound-absorbing metal mesh, thereby humidifying the air.

[0038] In some embodiments, Figure 2 As shown, the humidity control system 200 further includes: an air supply unit 210, which is disposed inside or outside the humidifying device, and the air volume of the air passing through the humidifying device is adjusted by adjusting the rotation speed of the air supply unit 210.

[0039] In some embodiments, in the case where the air supply unit 210 is disposed outside the humidifying device, the air supply unit 210 is disposed on the upstream side of the humidifying device, or the air supply unit 210 is disposed on the downstream side of the humidifying device.

[0040] For example, the air supply unit 210 may be arranged in a fresh air processing device, a full heat exchange device, or a ventilation device. The full heat exchange device may or may not have an internal circulation function, and the ventilation device may or may not have an internal circulation function.

[0041] In some embodiments, when the air supply unit 210 is disposed inside the humidifying device, the air supply unit may be a fan or the like.

[0042] In some embodiments, the humidifying device 220 may further include a temperature regulating unit. The temperature regulating unit is located at the upstream side of the humidifying unit and is used to regulate the temperature of the introduced air, such as heating it, and input the heated air into the humidifying unit, so as to improve the humidification efficiency of the humidifying unit.

[0043] For thermostat units based on different principles, the ways of adjusting the temperature may be different. For example, if the thermostat unit adjusts the temperature based on the heat exchange principle, its temperature adjustment capacity can be adjusted by adjusting the valve opening of the refrigerant pipeline in the heat exchange module. For another example, if the thermostat unit adjusts the temperature based on the electric auxiliary heating principle, its temperature adjustment capacity can be adjusted by adjusting the output power of the electric auxiliary heating element.

[0044] In some embodiments, the conditioning object of the air conditioning system of the present application may include multiple indoor spaces, and the humidifier 220 supplies air to the multiple indoor spaces through multiple air pipes 240. Figure 2 In the figure, two indoor spaces (space 1 and space 2) are taken as an example for explanation, however, the embodiment of the present application is not limited to two spaces, and there may be more spaces and more air ducts are set for air supply.

[0045] In some embodiments, the indoor space to be regulated by the air conditioning system may include multiple areas, and the humidifier 220 supplies air to the multiple areas of the indoor space through multiple air ducts 240 .

[0046] In some embodiments, the air duct 240 is an air inlet duct, and each air duct 240 corresponds to a different indoor space, or corresponds to a different area of ​​the indoor space.

[0047] In some embodiments, Figure 2 As shown, an air duct 241 serving as a return air duct may also be provided to centrally return air to each indoor space or each area and discharge the air to the outdoors.

[0048] In the embodiment of the present application, the air-conditioning system 200 may be a commercial air-conditioning system or a household air-conditioning system.

[0049] In some embodiments, the air conditioning system 200 may include at least one group of outdoor units and at least one indoor unit connected to each group of outdoor units. That is, in the air conditioning system, one or more groups of outdoor units may be included, each group of outdoor units includes at least one outdoor unit; for a group of outdoor units, the group of outdoor units is connected to at least one indoor unit.

[0050] For example, an air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit.

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

[0052] 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.

[0053] 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.

[0054] 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.

[0055] In some embodiments, Figure 2 As shown, the outdoor unit 270 is connected to the plurality of indoor units 260 via the second refrigerant pipeline 280 , and the outdoor unit 270 is connected to the humidifying device 220 via the first refrigerant pipeline 250 .

[0056] In some embodiments, the refrigerant pipeline between the outdoor unit 270 and the indoor unit 260 and the humidifying device 220 can be connected in various ways. Below, an example of connecting one indoor unit 270 to two indoor units 260 and one humidifying device 220 is used to exemplify the connection method of the refrigerant pipeline. It is understandable that the following description is also applicable to the case where the indoor unit, outdoor unit and humidifying device are other numbers in the refrigerant system.

[0057] Figure 3 Schematic diagram of the connection method of the refrigerant pipeline between the indoor unit, the humidifying device, and the outdoor unit in the embodiment of the present application. Figure 3 As shown, the refrigerant pipeline may include a first main circuit 273, a second main circuit 274, a first branch circuit 275, a second branch circuit 276, and a third branch circuit 277, and the outdoor unit includes a liquid outlet 271 and a liquid inlet 272. The liquid outlet 272 is connected to the first main circuit 273, and the liquid inlet is connected to the second main circuit 274; the indoor unit 261 is arranged on the first branch circuit 275, the indoor unit 262 is arranged on the second branch circuit 276, and the humidifier 220 is arranged on the third branch circuit 277. The first branch circuit 275, the second branch circuit 276, and the third branch circuit 277 are connected to the first main circuit 273 and the second main circuit 274 at both ends, respectively.

[0058] After the refrigerant flows into the first main path 273 from the liquid outlet 271 , it flows into the first branch 275 , the second branch 276 and the third branch 277 respectively. After flowing through the first branch 275 , the second branch 276 and the third branch 277 , the refrigerant flows into the second main path 274 respectively, and flows into the outdoor unit 270 through the liquid inlet 272 .

[0059] Figure 4 1 is another schematic diagram of the connection method of the refrigerant pipeline between the indoor unit, the humidifying device, and the outdoor unit in the embodiment of the present application. Figure 4 The connections shown are similar to Figure 3 The difference is that two ends of the first branch 275, the second branch 276 and the third branch 277 are connected to the first main road 273 and the merging unit 300 respectively.

[0060] After the refrigerant flows into the first main path 273 from the liquid outlet 271, it flows into the first branch 275, the second branch 276 and the third branch 277 respectively. After the refrigerant flowing through the first branch 275, the second branch 276 and the third branch 277 merge at the merging unit 300, it flows into the second main path 274 and flows into the outdoor unit 270 through the liquid inlet 272.

[0061] Figure 5 FIG. 2 is another schematic diagram of the connection method of the refrigerant pipelines between the indoor unit, the humidifying device, and the outdoor unit in the embodiment of the present application. Figure 5 As shown in (a), the refrigerant pipeline may include a first main circuit 273, a second main circuit 274, a first branch 281, a second branch 282, a third branch 283, a fourth branch 284, a fifth branch 285 and a sixth branch 286. The first branch 281 connects the first main circuit 273 and the indoor unit 261, the second branch 282 connects the second main circuit 274 and the indoor unit 261; the third branch 283 connects the first main circuit 273 and the fifth branch 285, the first main circuit 273 and the sixth branch 286; the fourth branch 284 connects the second main circuit 274 and the fifth branch 285, the second main circuit 274 and the sixth branch 286; the indoor unit 262 is arranged on the fifth branch 285, and the humidifier 220 is arranged on the sixth branch 286.

[0062] After the refrigerant flows into the first main path 273 from the liquid outlet 271, it flows into the first branch 281 and the third branch 283 respectively; the refrigerant flowing into the first branch 281 flows into the second main path 274 through the indoor unit 261 and the second branch 282, and flows into the outdoor unit 270 through the liquid inlet 272; the refrigerant flowing into the third branch 283 flows into the fifth branch 285 and the sixth branch 286 respectively, and the refrigerant flowing through the fifth branch 285 and the sixth branch 286 flows into the second main path 274 through the fourth branch 284, and flows into the outdoor unit 270 through the liquid inlet 272.

[0063] Figure 5 The difference between (b) and (a) is that, Figure 5 As shown in (b), the indoor unit 262 and the humidifier 220 are arranged on the first branch 281 and the second branch 282, and the indoor unit 261 is arranged on the third branch 283 and the fourth branch 284.

[0064] The refrigerant parameters (e.g., refrigerant flow rate, pressure, temperature, etc.) in the first branch 281 and the second branch 282 and the third branch 283 and the fourth branch 284 may be different. The present application is not limited thereto, and the refrigerant parameters in the first branch 281 and the second branch 282 and the third branch 283 and the fourth branch 284 may also be the same.

[0065] Figure 6 1 is another schematic diagram of the connection method of the refrigerant pipeline between the indoor unit, the humidifying device, and the outdoor unit in the embodiment of the present application. Figure 6 Yes Figure 5 The humidifier 220 and the indoor unit 261 are exchanged in position, and other structures are the same, and the corresponding refrigerant flow mode will not be described in detail here.

[0066] In some embodiments, the first refrigerant pipeline between the humidifying device 220 and the outdoor unit 270 may include a branch of the refrigerant directly connected to the humidifying device 220 (for example, Figure 3 As shown, the first refrigerant pipeline may include a third branch 277), so that when the regulating valve disposed on the first refrigerant pipeline is adjusted, the refrigerant state of other components will not be affected. The present application is not limited thereto, and the first refrigerant pipeline may also include a pipeline from the liquid outlet of the outdoor unit to the humidifying device 220 and then to the liquid inlet of the outdoor unit (for example, Figure 3 As shown, the first refrigerant pipeline may include a first main path 273, a third branch path 277 and a fourth main path 274), and the regulating valve may be arranged at any position of the first refrigerant pipeline.

[0067] In some embodiments, the regulating valve may be any valve that can be switched or adjusted in opening, such as an electric valve, an electronic expansion valve, etc.

[0068] In some embodiments, Figure 2 As shown, the air conditioning system 200 may further include a centralized control module 290. The centralized control module 290 may control the working state of each component in the air conditioning system 200. For example, the centralized control module 290 may execute the control method of the embodiment of the present application to control the regulating valve and the air supply unit.

[0069] In some embodiments, the centralized control module 290 may include a controller, for example, the controller may be a centralized controller, a wired controller, a remote controller, an intelligent controller, etc. A user may issue instructions by operating the controller.

[0070] In some embodiments, the centralized control module 290 may further include a gateway device that collects data from various modules and devices and generates control instructions for various components in the air conditioning system 200 based on the data. For example, control instructions for the regulating valve and / or the air supply unit on the first refrigerant pipeline. The regulating valve is opened, closed, and the opening degree is adjusted according to the control instruction for the regulating valve; the air supply unit is adjusted according to the control instruction for the air supply unit.

[0071] In some embodiments, the refrigerant pressure state of the air-conditioning system may include various information related to the refrigerant pressure of the air-conditioning system. For example, the refrigerant pressure state may include at least one of the refrigerant temperature and the refrigerant pressure.

[0072] For example, the refrigerant pressure of the air-conditioning system can be detected or calculated, and the refrigerant pressure can be used as the refrigerant pressure state. For example, the refrigerant pressure of the air-conditioning system can be detected by a pressure sensor, or the refrigerant temperature of the air-conditioning system can be detected by a temperature sensor, and the equivalent saturation pressure can be calculated according to the refrigerant temperature as the refrigerant pressure.

[0073] Alternatively, the refrigerant temperature of the air-conditioning system may be detected or calculated and used as the refrigerant pressure state. For example, the refrigerant temperature of the air-conditioning system may be detected by a temperature sensor, or a physical quantity related to the refrigerant temperature may be detected by other sensors, and the refrigerant temperature may be calculated based on the detected physical quantity, etc.

[0074] In some embodiments, the refrigerant pressure state of the air-conditioning system may include the refrigerant pressure state at various locations of the air-conditioning system, for example, the refrigerant pressure state of at least one of a humidifier, an outdoor unit, and an indoor unit of the air-conditioning system.

[0075] The following is an exemplary description of the refrigerant pressure state of the humidifying device, the refrigerant pressure state of the indoor unit, and the refrigerant pressure state of the outdoor unit.

[0076] Refrigerant pressure status of humidifier

[0077] In some embodiments, the temperature control unit of the humidifying device may be connected to the outdoor unit via a first refrigerant pipeline, and the refrigerant in the temperature control unit exchanges heat with the air introduced by the air supply unit to adjust the temperature of the introduced air.

[0078] The refrigerant pressure state of the humidifier may include at least one of the refrigerant temperature and the refrigerant pressure of the humidifier. The refrigerant temperature of the humidifier may include the temperature of the refrigerant in the temperature control unit of the humidifier, and the refrigerant pressure of the humidifier may include the pressure of the refrigerant in the temperature control unit.

[0079] In some embodiments, when the outdoor unit is connected to multiple humidifiers, the refrigerant pressure state of the humidifier may be the refrigerant pressure state of any one of the multiple humidifiers. For example, the refrigerant pressure state of a certain humidifier among the multiple humidifiers may be preset as the refrigerant pressure state of the air-conditioning system. Thus, the refrigerant pressure state of the air-conditioning system can be obtained by only detecting or calculating the refrigerant pressure state of the humidifier, which can reduce the cost of detection or calculation.

[0080] In some embodiments, when the outdoor unit is connected to multiple humidifiers, the refrigerant pressure state of the humidifier may be determined according to the refrigerant pressure states of the multiple humidifiers. For example, taking the refrigerant pressure state as the refrigerant temperature as an example, the refrigerant temperature of the humidifier may be the maximum value, minimum value, or average value of the refrigerant temperatures of the multiple humidifiers.

[0081] Refrigerant pressure status of indoor unit

[0082] The refrigerant pressure state of the indoor unit may include at least one of the refrigerant temperature and the refrigerant pressure of the indoor unit. The refrigerant temperature of the indoor unit may include the temperature of the refrigerant in the heat exchanger of the indoor unit, and the refrigerant pressure of the indoor unit may include the pressure of the refrigerant in the heat exchanger of the indoor unit.

[0083] In some embodiments, when the outdoor unit is connected to multiple indoor units, the refrigerant pressure state of the indoor unit may be the refrigerant pressure state of any one of the multiple indoor units. For example, the refrigerant pressure state of a certain indoor unit among the multiple indoor units may be preset as the refrigerant pressure state of the air-conditioning system. Thus, the refrigerant pressure state of the air-conditioning system can be obtained by only detecting or calculating the refrigerant pressure state of the indoor unit, which can reduce the cost of detection or calculation.

[0084] In some embodiments, when the outdoor unit is connected to multiple indoor units, the refrigerant pressure state of the indoor unit may be determined according to the refrigerant pressure states of the multiple indoor units. For example, taking the refrigerant pressure state as the refrigerant temperature as an example, the refrigerant temperature of the indoor unit may be the maximum value, minimum value, or average value of the refrigerant temperatures of the multiple indoor units.

[0085] Refrigerant pressure status of outdoor unit

[0086] The refrigerant pressure state of the outdoor unit may include at least one of the refrigerant temperature and the refrigerant pressure of the outdoor unit. The refrigerant temperature of the outdoor unit may include the temperature of the refrigerant in the heat exchanger of the outdoor unit, and the refrigerant pressure of the outdoor unit may include the pressure of the refrigerant in the heat exchanger of the outdoor unit.

[0087] In some embodiments, the refrigerant pressure state of the air-conditioning system may be the refrigerant pressure state of the humidifier, or the refrigerant pressure state of the indoor unit, or the refrigerant pressure state of the outdoor unit. For example, only the refrigerant pressure state of the humidifier, the indoor unit, or the outdoor unit may be detected or calculated, and the detected or calculated refrigerant pressure state may be used as the refrigerant pressure state of the air-conditioning system.

[0088] In some embodiments, the refrigerant pressure state of the air-conditioning system may be determined based on the refrigerant pressure state of the humidifying device, the refrigerant pressure state of the indoor unit, and the refrigerant pressure state of the outdoor unit. For example, taking the refrigerant pressure state as the refrigerant temperature as an example, the refrigerant pressure state of the air-conditioning system may be the maximum value, minimum value, or average value of the refrigerant temperatures of the humidifying device, the indoor unit, and the outdoor unit. Among them, by taking the maximum value of the refrigerant temperatures of the humidifying device, the indoor unit, and the outdoor unit as the refrigerant pressure state of the air-conditioning system, the risk of system shutdown due to rising refrigerant pressure can be further reduced.

[0089] In some embodiments, the high-pressure protection condition of the outdoor unit may include at least one of the following: the refrigerant temperature is greater than or equal to a first preset temperature; or the refrigerant pressure is greater than or equal to a first preset pressure. Wherein, when the high-pressure protection condition is triggered, the air conditioning system may prompt a corresponding alarm message or shut down, for example, shut down after prompting a specified number of alarm messages within a period of time, etc.

[0090] In some embodiments, the values ​​of the first preset temperature and the first preset pressure may be determined according to the specific implementation of the air conditioning system. For example, if the specific implementation of the air conditioning system stipulates that an alarm or shutdown occurs when the refrigerant temperature in the air conditioning system is higher than 59°C, the first preset temperature may be set to 59°C.

[0091] In some embodiments, after the regulating valve of the first refrigerant pipeline is closed for a first preset time, the regulating valve of the first refrigerant pipeline is opened. In other words, when the high-pressure protection condition of the outdoor unit is triggered, the regulating valve of the humidifier is started and stopped intermittently. By closing the regulating valve for a period of time and then opening the regulating valve again, the temperature regulating effect of the temperature regulating unit of the humidifier can be guaranteed, thereby ensuring the humidification effect of the humidifier, which helps to improve the user experience.

[0092] In some embodiments, after increasing the air volume of the air supply unit, the air supply unit continues to supply air at the increased air volume for a second preset time. For example, when the high-voltage protection condition of the outdoor unit is triggered, the air volume of the air supply unit can be adjusted to the maximum air volume, and continue to supply air at the maximum air volume for a second preset time. Thus, the refrigerant in the humidifying device can be cooled at a faster rate, and the humidification effect can be ensured by increasing the air volume when the refrigerant is cooled. The present application is not limited to this, and the air volume of the air supply unit can also be adjusted to an air volume between the current air volume and the maximum air volume.

[0093] Figure 7 1 is a schematic diagram of an implementation method of 101 of the present application embodiment. Figure 7 As shown, 101 may include:

[0094] 1011, determine whether the refrigerant status information of the air-conditioning system triggers a high-pressure protection condition. The air-conditioning system can determine whether the high-pressure protection condition is triggered in a normal operation mode (for example, a heating mode, etc.). When the air-conditioning system is operating in a normal operation mode, the opening of the regulating valve of the humidifier device and / or the air volume of the air supply unit of the air-conditioning system can be set to corresponding values ​​according to specific implementations or user instructions. For ease of description, the opening of the regulating valve of the first refrigerant pipeline of the humidifier in the normal operation mode is referred to as the initial opening, and the air volume of the air supply unit in the normal operation mode is referred to as the initial air volume.

[0095] When the answer in step 1011 is “yes”, the process 1012 and 1013 are executed, otherwise the process returns to step 1011.

[0096] like Figure 7 As shown, in process 1012:

[0097] 10121, close the regulating valve of the first refrigerant pipeline of the humidifying device;

[0098] 10122, determine whether the closing time of the regulating valve exceeds the first preset time. If the determination result is "yes", execute 10123, otherwise return to 10122;

[0099] 10123, open the regulating valve. For example, open the regulating valve to an initial opening. The present application is not limited thereto, and the regulating valve may also be opened to other openings.

[0100] like Figure 7 As shown, in 1013, the air volume of the air supply unit is increased, and air is supplied with the increased air volume for a second preset time.

[0101] In some embodiments, when the judgment at step 1011 is yes, step 10121 and step 1013 may be performed in parallel, in other words, closing the regulating valve and increasing the air volume of the air supply unit may be performed simultaneously. Thus, the control efficiency can be improved and the user experience can be further guaranteed.

[0102] In some embodiments, the first preset time for the regulating valve to be closed may be a time shorter than the second preset time for the air supply unit to supply air at an increased air volume. For example, the first preset time is 5 minutes, and the second preset time is 20 minutes. By setting the time for the regulating valve to be closed to a shorter time, it is possible to avoid the humidification efficiency of the humidifying device being affected by closing the regulating valve for a long time. By setting the second preset time for the air supply unit to supply air at an increased air volume to a longer time, the refrigerant in the humidifying device can be effectively cooled, thereby avoiding system shutdown due to frequent triggering of high-pressure protection conditions by the air-conditioning system. The present application is not limited to this, and the first preset time may also be set to be shorter than the second preset time, or the same time as the second preset time.

[0103] In some embodiments, before the regulating valve is closed and the air volume of the air supply unit is increased due to the high-pressure protection condition of the outdoor unit being triggered, other control methods can be taken to relieve the refrigerant pressure or refrigerant temperature according to the obtained refrigerant pressure state, in the hope of avoiding shutdown of the air-conditioning system in a manner that has less impact on the humidification device of the air-conditioning system.

[0104] Figure 8 is another schematic diagram of the control method of an embodiment of the present application, Figure 8 101 and Figure 1 The same as 101 in , and no further explanation is given here. Figure 8 As shown, the method may also include:

[0105] 102. When the refrigerant temperature is lower than the first preset temperature and greater than or equal to the second preset temperature, or when the refrigerant pressure is lower than the first preset pressure and greater than or equal to the second preset pressure, increase the opening of the regulating valve.

[0106] The second preset temperature is lower than the first preset temperature, and the second preset pressure is lower than the first preset pressure.

[0107] Taking the refrigerant pressure state as the refrigerant temperature as an example, before the refrigerant temperature of the air-conditioning system reaches the first preset temperature that triggers the high temperature protection condition, it is first determined whether the refrigerant temperature reaches a second preset temperature lower than the first preset temperature. When the second preset temperature is reached, the purpose of alleviating the refrigerant high pressure can be achieved by increasing the opening of the regulating valve. For example, by increasing the opening of the regulating valve of the humidifier, the refrigerant can flow into the humidifier more easily, thereby reducing the refrigerant pressure in the outdoor unit.

[0108] In some embodiments, the second preset temperature and the second preset pressure may be determined according to the specific implementation of the air conditioning system. For example, if the specific implementation of the air conditioning system stipulates that an alarm or shutdown occurs when the refrigerant temperature in the air conditioning system is higher than 59°C, and the first preset temperature is set to 59°C, the second preset temperature may be set to 58°C.

[0109] In some embodiments, when the opening of the regulating valve is increased, the refrigerant pressure state can be continuously obtained, and whether the control method of increasing the opening of the regulating valve is effective can be determined according to the refrigerant pressure state, that is, whether the control method of increasing the opening of the regulating valve can alleviate the refrigerant high pressure. Figure 8 As shown, the method may also include:

[0110] 103. After increasing the opening of the regulating valve, when the refrigerant temperature is greater than or equal to the second preset temperature and the refrigerant temperature is less than the first preset temperature, or when the refrigerant pressure is greater than or equal to the second preset pressure and the refrigerant pressure is less than the first preset pressure, continue to increase the opening of the regulating valve.

[0111] For example, after increasing the opening of the regulating valve for a period of time, the refrigerant temperature can be kept below the first preset temperature or the refrigerant pressure can be kept below the first preset pressure to avoid triggering the high-pressure protection condition. Therefore, it can be considered that the control method of increasing the opening of the regulating valve is effective. Since the refrigerant temperature is still not below the second preset temperature or the refrigerant pressure is still not below the second preset pressure, the opening of the regulating valve can be continued to increase in the hope that the refrigerant temperature or refrigerant pressure can be reduced, or the speed at which the refrigerant temperature or refrigerant pressure rises, through this control method.

[0112] As described above, in 103, after increasing the opening of the regulating valve, the specific control method is determined according to the relationship between the refrigerant temperature and the first preset temperature and the second preset temperature or the relationship between the refrigerant pressure and the first preset pressure and the second preset pressure. However, the present application is not limited thereto, and more fine-grained judgment and control can also be performed.

[0113] Taking the refrigerant temperature as an example (the following control method is also applicable to the case where the refrigerant pressure state is the refrigerant pressure), for example, after increasing the opening of the regulating valve for a period of time, when the refrigerant temperature is greater than or equal to the second preset temperature and the refrigerant temperature is on a downward trend, the opening of the regulating valve may not be increased further; when the refrigerant temperature is greater than or equal to the second preset temperature, less than the first preset temperature, and the refrigerant temperature is on an upward trend, the opening of the regulating valve may continue to be increased.

[0114] For another example, when the refrigerant temperature is greater than the second preset temperature, the opening of the regulating valve can be increased to the first opening; in the state of the first opening, if the refrigerant temperature drops or the rising rate decreases, and the refrigerant temperature is lower than the first preset temperature and greater than or equal to the second preset temperature, the first opening is maintained; if the refrigerant temperature rises or the rising rate increases, and the refrigerant temperature is lower than the first preset temperature and greater than or equal to the second preset temperature, the opening of the regulating valve is increased to a second opening that is larger than the first opening.

[0115] For another example, the corresponding relationship between the refrigerant temperature and the opening of the regulating valve may be preset, and when the refrigerant temperature is higher than a second preset temperature, the regulating valve is adjusted to an opening corresponding to the current refrigerant temperature.

[0116] In some embodiments, after the air volume of the air supply unit and the opening of the regulating valve are set by the above control method, for example, after the regulating valve is closed for a first preset time or after the air supply unit supplies air with an increased air volume for a second preset time, the refrigerant pressure state of the air conditioning system can continue to be obtained, and whether the above control method is effective can be determined based on the refrigerant pressure state. Figure 8 As shown, the control method of the air conditioning system may further include:

[0117] 104. When the refrigerant temperature is lower than a third preset temperature, or when the refrigerant pressure is lower than a third preset pressure, the air volume of the air supply unit is adjusted to an initial air volume, and the opening of the regulating valve is adjusted to an initial opening.

[0118] In some embodiments, the third preset temperature may be a temperature lower than the first preset temperature and the second preset temperature, and the third preset pressure may be a pressure lower than the first preset pressure and the second preset pressure.

[0119] When the refrigerant temperature is lower than the third preset temperature or the refrigerant pressure is lower than the third preset pressure, it can be considered that the possibility of the refrigerant pressure state of the air-conditioning system triggering the high-pressure protection condition is relatively low. Therefore, the air volume of the air supply unit and the opening of the regulating valve can be adjusted to the initial air volume and initial opening in the normal operation mode, thereby further ensuring the user experience.

[0120] In some embodiments, in 104, the air volume of the air supply unit can be adjusted to the initial air volume in various ways, or the opening of the regulating valve can be adjusted to the initial opening. Taking the refrigerant pressure state as the refrigerant temperature and adjusting the air volume of the air supply unit as an example, when it is determined that the refrigerant temperature is less than the third preset temperature, the air volume of the air supply unit can be directly adjusted from the current air volume (i.e., the increased air volume, for example, the maximum air volume) to the initial air volume. The present application is not limited to this, and the air volume can also be adjusted in a step-by-step manner. For example, when the refrigerant temperature is less than the third preset temperature, the current air volume is first adjusted to an air volume that is smaller than the current air volume and larger than the initial air volume. After a period of time, when the refrigerant temperature is still less than the third preset temperature, the air volume of the air supply unit is adjusted to the initial air volume.

[0121] In some embodiments, after the air supply unit continues to supply air with the increased air volume for the second preset time, if the refrigerant temperature is greater than or equal to the third preset temperature value, or the refrigerant pressure is greater than or equal to the third preset pressure value, then the air supply unit can continue to supply air with the increased air volume for the second preset time, or the regulating valve can be closed again for the first preset time, or the air supply unit can continue to supply air with the increased air volume for the second preset time and the regulating valve can be closed again for the first preset time. In this way, the possibility of the refrigerant pressure state triggering the high pressure protection condition can be further reduced.

[0122] Among them, by making the air supply unit continue to supply air with the increased air volume for the second preset time, and making the regulating valve close again for the first preset time, the efficiency of relieving the high pressure of the refrigerant can be improved, and the effect of relieving the high pressure of the refrigerant can be further ensured. In addition, by making the air supply unit continue to supply air with the increased air volume for the second preset time, and not closing the regulating valve, it is possible to further reduce the refrigerant pressure state while avoiding frequent closing and opening of the regulating valve, which causes the refrigerant state of the air-conditioning system to be unstable.

[0123] Fig. 9 is another schematic diagram of the control method of the embodiment of the present application. Fig. 9 As shown, the control method includes:

[0124] 901, the air conditioning system is in normal operation mode, determining whether the current operation mode is heating mode, in operation, and the refrigerant temperature is greater than or equal to 58°C; if the determination is yes, executing 902, otherwise returning to normal operation mode;

[0125] 902, executing the electric valve protection control, that is, increasing the opening of the electric valve;

[0126] 903, determine whether the refrigerant temperature is greater than or equal to 59°C; if it is determined to be yes, execute 904 and 905, otherwise return to the normal operation mode;

[0127] 904, enable the fresh air device to blow air at the maximum air volume for 20 minutes;

[0128] 905, close the electric valve, and open the electric valve again after closing the electric valve for 5 minutes;

[0129] 906, determine whether the refrigerant temperature is less than 56°C; if it is yes, return to normal operation mode, otherwise execute 904.

[0130] Fig.10 is another schematic diagram of the control method of the embodiment of the present application. Fig.10 and Fig. 9 The difference is that, when it is determined in 906 that the refrigerant temperature is not less than 56°C, 904 and 905 are executed.

[0131] It is worth noting that the above Figure 1 , 7 -10 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of each operation can be appropriately adjusted, and other operations can be added or some operations can be reduced. In addition, the objects of the above operations can be adjusted. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 1 , 7 -10 records. Figure 8 Optional steps are indicated by dashed boxes.

[0132] According to the above embodiment, when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit is closed to increase the air volume of the air supply unit. In this way, the risk of system shutdown due to increased refrigerant pressure can be reduced and user experience can be guaranteed.

[0133] Example 2

[0134] Example 2 of the present application provides an air-conditioning system, which corresponds to the air-conditioning system in the control method of the air-conditioning system recorded in Example 1. Its specific implementation can refer to the implementation of the method described in Example 1, and the same or related contents will not be repeated.

[0135] like Figure 2 As shown, the air conditioning system 200 includes: an indoor unit 260 and an outdoor unit 270; a humidifying device 220, which is connected to the outdoor unit 260 through a first refrigerant pipeline 250 and is used to adjust the air humidity; and an air supply unit 210, which adjusts the air volume of the air passing through the humidifying device 220. The air conditioning system 200 also includes a control module, which executes the control method described in Example 1. The control module can be Figure 2The centralized control module 290 or components in the centralized control module 290.

[0136] According to the above embodiment, when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit is closed to increase the air volume of the air supply unit. In this way, the risk of system shutdown due to increased refrigerant pressure can be reduced and user experience can be guaranteed.

[0137] In some embodiments, the refrigerant pressure state may include at least one of a refrigerant temperature and a refrigerant pressure.

[0138] In some embodiments, the air conditioning system 200 may further include a detection module.

[0139] In some embodiments, the detection module can be used to detect information related to the refrigerant state of the air-conditioning system. The control module can calculate the refrigerant pressure state of the air-conditioning system based on the information related to the refrigerant state detected by the detection module. The detection module can detect information related to the refrigerant state of at least one of the humidifier, the outdoor unit, and the indoor unit.

[0140] In some embodiments, the detection module can be used to obtain the refrigerant pressure state of the air-conditioning system. For example, the detection module can detect information related to the refrigerant state of the air-conditioning system, and calculate the refrigerant pressure state of the air-conditioning system based on the detected information related to the refrigerant state. The detection module can obtain the refrigerant pressure state of at least one of the humidifier, the outdoor unit, and the indoor unit as the refrigerant pressure state of the air-conditioning system.

[0141] In some embodiments, the detection module may include at least one of a temperature sensor for detecting the temperature of the refrigerant and a pressure sensor for detecting the pressure of the refrigerant.

[0142] In some embodiments, the air supply unit 210 is disposed inside the humidifying device or outside the humidifying device, and the air volume of the air passing through the humidifying device is adjusted by adjusting the rotation speed of the air supply unit 210 .

[0143] In some embodiments, in the case where the air supply unit 210 is disposed outside the humidifying device, the air supply unit is disposed on the upstream side of the humidifying device, or the air supply unit is disposed on the downstream side of the humidifying device.

[0144] In some embodiments, the air supply unit is disposed in a fresh air processing device, a full heat exchange device, or a ventilation device.

[0145] According to the above embodiment, when the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline between the humidifier and the outdoor unit is closed to increase the air volume of the air supply unit. In this way, the risk of system shutdown due to increased refrigerant pressure can be reduced and user experience can be guaranteed.

[0146] 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-conditioning system described in Example 1.

[0147] 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-conditioning system described in Example 1.

[0148] 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.

[0149] 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.

[0150] 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.

[0151] 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. A control method for an air conditioning system, characterized in that: The air conditioning system comprises: an indoor unit, an outdoor unit, a humidifier connected to the outdoor unit via a first refrigerant pipeline for adjusting air humidity, and an air supply unit for adjusting the air volume of air passing through the humidifier. The method comprises: When the refrigerant pressure state of the air-conditioning system meets the high-pressure protection condition of the outdoor unit, the regulating valve of the first refrigerant pipeline is closed to increase the air volume of the air supply unit.

2. The method according to claim 1, characterized in that The refrigerant pressure state of the air-conditioning system is determined based on the refrigerant pressure state of at least one of the humidifying device, the outdoor unit, and the indoor unit.

3. The method according to claim 1 or 2, characterized in that: The refrigerant pressure state includes at least one of a refrigerant temperature and a refrigerant pressure.

4. The method according to claim 3, characterized in that The humidifying device further includes: a temperature regulating unit for regulating the temperature of the air introduced by the air supply unit, wherein the temperature regulating unit is connected to the outdoor unit through the first refrigerant pipeline. The refrigerant temperature of the humidifying device includes the temperature of the refrigerant in the temperature regulating unit, and the refrigerant pressure of the humidifying device includes the pressure of the refrigerant in the temperature regulating unit.

5. The method according to claim 3, characterized in that: The high voltage protection condition includes at least one of the following: The refrigerant temperature is greater than or equal to a first preset temperature; or The refrigerant pressure is greater than or equal to a first preset pressure.

6. The method according to claim 5, characterized in that The method further comprises: When the refrigerant temperature is lower than the first preset temperature and greater than or equal to the second preset temperature, or when the refrigerant pressure is lower than the first preset pressure and greater than or equal to the second preset pressure, the opening of the regulating valve is increased.

7. The method according to claim 6, characterized in that The method further comprises: After increasing the opening of the regulating valve, when the refrigerant temperature is greater than or equal to the second preset temperature and the refrigerant temperature is less than the first preset temperature, or when the refrigerant pressure is greater than or equal to the second preset pressure and the refrigerant pressure is less than the first preset pressure, continue to increase the opening of the regulating valve.

8. The method according to claim 3, characterized in that The method further comprises: When the refrigerant temperature is lower than a third preset temperature, or when the refrigerant pressure is lower than a third preset pressure, the air volume of the air supply unit is adjusted to an initial air volume, and the opening of the regulating valve is adjusted to an initial opening.

9. The method according to claim 1, characterized in that: The method further comprises: After the regulating valve of the first refrigerant pipeline is closed for a first preset time, the regulating valve is opened.

10. The method according to claim 1, characterized in that The method further comprises: The air supply unit continues to supply air at the increased air volume for a second preset time.

11. The method according to claim 10, characterized in that The increased air volume is the maximum air volume of the air supply unit.

12. The method according to claim 10, characterized in that The method further comprises: After the air supply unit continues to supply air with the increased air volume for the second preset time, when the refrigerant temperature is greater than or equal to the third preset temperature value, or when the refrigerant pressure is greater than or equal to the third preset pressure value, the air supply unit continues to supply air with the increased air volume for the second preset time.

13. The method according to claim 10, characterized in that The method further comprises: After the air supply unit continues to supply air with the increased air volume for the second preset time, when the refrigerant temperature is greater than or equal to the third preset temperature value, or when the refrigerant pressure is greater than or equal to the third preset pressure value, the regulating valve is closed for the first preset time, so that the air supply unit continues to supply air with the increased air volume for the second preset time.

14. An air conditioning system, characterized in that: The system comprises: Indoor and outdoor units; A humidifying device, which is connected to the outdoor unit via a first refrigerant pipeline and is used to adjust the air humidity; an air supply unit for adjusting the air volume of air passing through the humidifying device; and A control module, which executes the method described in any one of claims 1-13.

15. The air conditioning system according to claim 14, characterized in that: The air conditioning system further comprises: A detection module is used to obtain the refrigerant pressure status of the air-conditioning system.

16. The air conditioning system according to claim 15, characterized in that: The detection module detects information related to the refrigerant state of the air-conditioning system, and calculates the refrigerant pressure state of the air-conditioning system according to the detected information related to the refrigerant state.

17. The air conditioning system according to claim 14, characterized in that: The air conditioning system further comprises: a detection module, which detects information related to the refrigerant status of the air-conditioning system, The control module calculates the refrigerant pressure state of the air-conditioning system according to the information related to the refrigerant state detected by the detection module.

18. The air conditioning system according to claim 15 or 17, characterized in that: The refrigerant pressure state is determined based on a refrigerant pressure state of at least one of the humidifying device, the outdoor unit, and the indoor unit.

19. The air conditioning system according to claim 15 or 17, characterized in that: The refrigerant pressure state includes at least one of the refrigerant temperature and the refrigerant pressure. The detection module includes at least one of a temperature sensor for detecting the temperature of the refrigerant and a pressure sensor for detecting the pressure of the refrigerant.

20. The air conditioning system according to claim 14, characterized in that The air supply unit is disposed inside the humidifier or outside the humidifier, and the air volume of the air passing through the humidifier is adjusted by adjusting the rotation speed of the air supply unit.

21. The humidity control system according to claim 20, characterized in that: In the case where the air supply unit is provided outside the humidifying device, the air supply unit is provided on the upstream side of the humidifying device, or the air supply unit is provided on the downstream side of the humidifying device.

22. The humidity control system according to claim 20 or 21, characterized in that: The air supply unit is arranged in a fresh air processing device, a total heat exchange device or a ventilation device.

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