Control method and device for preventing condensation of air conditioning system, storage medium and air conditioning system

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for preventing condensation of an air conditioning system, comprising the following steps: acquiring a radiation working temperature of a radiation heat exchange module when the air conditioning system is in refrigeration operation; and when it is determined that the condensation condition is met based on the radiation working temperature of the radiation heat exchange module, controlling a refrigerant heat exchange module to perform a dehumidification operation; wherein the condensation condition is used to represent that the radiation heat exchange module is in a condensation-prone state. When it is determined that the radiation heat exchange module may have a condensation problem, the control method of the embodiment of the present application controls the refrigerant heat exchange module to perform a dehumidification operation on the indoor environment, so as to reduce the humidity in the indoor environment by using the refrigerant heat exchange module and improve the indoor environment comfort; meanwhile, the condensation of the radiation heat exchange module itself can be effectively reduced without affecting the normal use of the radiation heat exchange module. The application also discloses a control device for preventing condensation of the air conditioning system, a storage medium and an air conditioning system.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a control method, device, storage medium, and air conditioning system for preventing condensation in air conditioning systems. Background Technology

[0002] Air conditioners, as a widely used household appliance, have become an indispensable part of modern residents' daily lives due to their excellent role in maintaining indoor temperature and creating a comfortable indoor environment. However, existing air conditioner products still have some problems in terms of indoor temperature control. Wall-mounted air conditioners are generally installed in a high position close to the ceiling, while floor-standing air conditioners are generally installed in the corner of the room. When the air conditioner is running, it will change the temperature of the room closer to the air conditioner more quickly and the room further away will change the temperature more slowly. For example, in the heating mode in winter, the air conditioner blows hot air, resulting in a high temperature at the air conditioner vent and a low temperature at the air conditioner vent, resulting in a large temperature difference between different areas of the room.

[0003] In order to improve the above problems, one of the current methods in related technologies is to combine the air conditioning system and the water system, and use the air conditioning system and the water system to simultaneously supply cooling / heating to different areas of the room. For example, the water system design is to add a new intermediate heat exchanger, use the heat of the refrigerant to cool / heat the water, and then deliver it to the radiant terminals such as capillary network or floor radiant network for radiant heat exchange.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] While the above design can improve indoor temperature distribution, in the hot and humid summer cooling conditions, since the cooling capacity of the radiant terminal comes from secondary heat exchange, its temperature, although lower than the room temperature, is still higher than the temperature of the refrigerant from which the cooling capacity originates. This often leads to the problem that the radiant terminal has a low dehumidification effect when cooling the room and cannot effectively reduce indoor humidity. It is also easy for dew to slowly condense on its surface, affecting normal use. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a control method, device, storage medium, and air conditioning system for preventing condensation in air conditioning systems, in order to solve the technical problem of condensation in existing air conditioning systems combined with radiant heat exchange modules.

[0008] In some embodiments, a control method for preventing condensation in an air conditioning system is provided, wherein the air conditioning system has a refrigerant heat exchange module and a radiant heat exchange module capable of exchanging heat with the same indoor area respectively, wherein the cooling input of the radiant heat exchange module comes from the indoor heat exchanger of the refrigerant heat exchange module; the control method includes:

[0009] During the cooling operation of the air conditioning system, the radiant operating temperature of the radiant heat exchange module is obtained;

[0010] When the radiant operating temperature of the radiant heat exchange module meets the condensation condition, the refrigerant heat exchange module is controlled to perform dehumidification operation; the condensation condition is used to characterize the radiant heat exchange module in a state where it is prone to condensation.

[0011] In some embodiments, condensation conditions include:

[0012] T dew -T 辐射工作 >T1;

[0013] Among them, T dew T represents the current dew point temperature of the indoor area. 辐射工作 T1 is the radiation working temperature, and T1 is the first temperature difference threshold and is a positive value.

[0014] In some embodiments, controlling the refrigerant heat exchange module to perform dehumidification includes:

[0015] Determine the temperature difference between the current dew point temperature and the radiation operating temperature;

[0016] Based on the temperature difference, select the target dehumidification efficiency parameter that matches it from the preset correlation;

[0017] Control the dehumidification operation of the refrigerant heat exchange module according to the target dehumidification efficiency parameters.

[0018] In some embodiments, the dehumidification efficiency parameters include one or more of the following: the evaporation temperature of the indoor heat exchanger and the fan speed of the indoor fan;

[0019] The preset association relationships should include at least:

[0020] When T1 < T dew -T 辐射工作 When <T2, the evaporation temperature of the indoor heat exchanger is set to the first evaporation temperature, and / or the indoor fan is set to high speed;

[0021] In T dew -T 辐射工作 When the temperature is greater than T2, the evaporation temperature of the indoor heat exchanger is set to the second evaporation temperature, and / or the indoor fan is set to low speed.

[0022] The first evaporation temperature is higher than the second evaporation temperature.

[0023] In some embodiments, after determining that the condensation conditions are met based on the radiative operating temperature of the radiative heat exchange module, the method further includes:

[0024] Control the reduction or cessation of the cooling input from the indoor heat exchanger of the refrigerant heat exchange module to the radiant heat exchange module.

[0025] In some embodiments, the control method for preventing condensation in an air conditioning system further includes:

[0026] When the radiant operating temperature of the radiant heat exchange module does not meet the condensation conditions, the refrigerant heat exchange module and the radiant heat exchange module are controlled to cool the indoor area.

[0027] In some embodiments, the control method for preventing condensation in an air conditioning system further includes:

[0028] Confirmation that the mute command has been received;

[0029] Controls stop the refrigerant heat exchange module from cooling the indoor area, and controls the use of the radiant heat exchange module to cool the indoor area.

[0030] In some other embodiments, the control device for preventing condensation in an air conditioning system includes a processor and a memory storing program instructions, the processor being configured to execute the control method for preventing condensation in an air conditioning system as described in the above embodiments when the program instructions are executed.

[0031] In some other embodiments, the storage medium stores program instructions that, when executed, perform the control method for preventing condensation in an air conditioning system as described in the above embodiments.

[0032] In some other embodiments, the air conditioning system has a refrigerant heat exchange module and a radiant heat exchange module that can exchange heat with the same indoor area respectively, wherein the cooling input of the radiant heat exchange module comes from the indoor heat exchanger of the refrigerant heat exchange module.

[0033] The air conditioning system also has a control device for preventing condensation in the air conditioning system, as shown in the foregoing embodiments.

[0034] The control method for preventing condensation in air conditioning systems provided in this disclosure can achieve the following technical effects:

[0035] The control method for preventing condensation in air conditioning systems provided in this embodiment controls the activation of the refrigerant heat exchange module to dehumidify the indoor environment when it is determined that there may be condensation problems in the radiant heat exchange module. This reduces the humidity in the indoor environment and improves the comfort of the indoor environment by utilizing the refrigerant heat exchange module. At the same time, it can effectively reduce the condensation that may occur in the radiant heat exchange module itself without affecting the normal use of the radiant heat exchange module.

[0036] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0037] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0038] Figure 1 This is a schematic diagram of an air conditioning system provided in an embodiment of this disclosure;

[0039] Figure 2 This is a schematic diagram of an air conditioning system provided in an embodiment of this disclosure;

[0040] Figure 3 This is a schematic diagram of a control method for preventing condensation in an air conditioning system provided in an embodiment of this disclosure;

[0041] Figure 4 This is a schematic diagram of another control method for preventing condensation in an air conditioning system provided in an embodiment of this disclosure;

[0042] Figure 5 This is a schematic diagram of another control method for preventing condensation in an air conditioning system provided in an embodiment of this disclosure;

[0043] Figure 6 This is a schematic diagram of a control device for an air conditioning system provided in an embodiment of this disclosure;

[0044] Figure 7 This is a schematic diagram of another control device for an air conditioning system provided in an embodiment of this disclosure.

[0045] Figure label:

[0046] 100. Refrigerant heat exchange module; 110. Indoor heat exchanger; 120. Outdoor heat exchanger; 130. Compressor; 140. Four-way valve;

[0047] 200. Radiant heat exchange module; 210. Radiant heat exchanger; 220. Radiant piping;

[0048] 300. Indoor energy storage components. Detailed Implementation

[0049] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0050] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0053] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0054] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0055] In this embodiment of the disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technology and network communication technology into home appliances. They have the characteristics of intelligent control, intelligent sensing and intelligent application. The operation of smart home appliances often relies on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips. For example, smart home appliances can be connected to electronic devices to enable users to remotely control and manage smart home appliances.

[0056] In the disclosed embodiments, the terminal device refers to an electronic device with wireless connectivity. The terminal device can communicate with the aforementioned smart home appliances via the internet, or directly via Bluetooth, Wi-Fi, or other methods. In some embodiments, the terminal device may be, for example, a mobile device, a computer, or an in-vehicle device built into a hovercraft, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Wearable devices may include, for example, smartwatches, smart bracelets, pedometers, etc.

[0057] Combination Figure 1 As shown, optionally, the air conditioning system in which the anti-condensation control method provided in this embodiment of the present disclosure is applied mainly includes a refrigerant heat exchange module 100 and a radiant heat exchange module 200. The refrigerant heat exchange module 100 is mainly used to cool or heat the indoor environment through components such as an indoor unit; the radiant heat exchange module 200 is mainly used to cool or heat the indoor environment through devices such as a radiant heat exchanger 210.

[0058] The refrigerant heat exchange module 100 mainly consists of a compressor 130, an outdoor heat exchanger 120, an indoor heat exchanger 110, a throttling device, and a four-way valve 140.

[0059] Here, the refrigerant heat exchange module 100 consists of two main parts: an indoor unit and an outdoor unit. The indoor unit is located on the indoor side, and the indoor heat exchanger 110 is located in the indoor unit. It is used to exchange heat between the refrigerant and the indoor environment to absorb indoor heat for cooling or release heat for heating. The outdoor unit is located on the outdoor side, and components such as the compressor 130, the outdoor heat exchanger 120, and the four-way valve 140 are located in the outdoor unit.

[0060] Multiple components of the refrigerant heat exchange module 100 are connected by refrigerant pipelines and are constructed into a refrigerant circulation loop. The refrigerant is filled with refrigerant and can circulate along the refrigerant circulation loop to achieve the transfer of heat between the indoor and outdoor sides.

[0061] The embodiments described in this disclosure and thereafter are based on a "multi-split" air conditioning model, in which the indoor unit has multiple indoor heat exchangers 110, such as... Figure 1 The refrigerant heat exchange module 100 shown has two indoor heat exchangers 110 connected in parallel, and each of the parallel branches is equipped with a switching valve. The switching valve can be used to control the on / off state of each parallel branch, thereby controlling which indoor heat exchanger 110 is activated.

[0062] In some embodiments, the indoor heat exchanger 110 is a three-medium heat exchanger having a refrigerant heat exchange tube section, a radiant working fluid heat exchange tube section, and an air passage, configured to enable heat exchange between any two or three of the refrigerant heat exchange tube section, the radiant working fluid heat exchange tube section, and the air passage.

[0063] The refrigerant heat exchange pipe section is used to connect with the pipe corresponding to the refrigerant heat exchange module 100, and the radiant working fluid heat exchange pipe section is used to connect with the pipe corresponding to the radiant pipe 220; the air channel is connected to the internal air duct of the indoor unit, so that the indoor air exchanges heat with the refrigerant pipe section and / or the radiant working fluid heat exchange pipe section through the air channel.

[0064] For example, a three-medium heat exchanger can be used to exchange heat between the refrigerant flowing through the refrigerant heat exchange tube section and the radiant working fluid flowing through the radiant working fluid heat exchange tube section, such as using a high-temperature refrigerant to heat the radiant working fluid or using a low-temperature refrigerant to cool the radiant working fluid; and a three-medium heat exchanger can be used to exchange heat between the refrigerant flowing through the refrigerant heat exchange tube section and the air flowing through the air passage, such as using a high-temperature refrigerant to heat the air or using a low-temperature refrigerant to cool the air; and a three-medium heat exchanger can be used to exchange heat between the refrigerant flowing through the refrigerant heat exchange tube section and the radiant working fluid flowing through the radiant working fluid heat exchange tube section and the air flowing through the air passage, such as using a high-temperature refrigerant to heat the radiant working fluid and the air simultaneously, or using a low-temperature refrigerant to cool the radiant working fluid and the air simultaneously, etc.

[0065] In some optional embodiments, the radiant heat exchange module 200 mainly includes a radiant heat exchanger 210 and a radiant pipe 220. The radiant heat exchanger 210 is connected to the radiant working fluid heat exchange pipe section of the indoor heat exchanger 110 through the radiant pipe. It is configured to exchange heat with the outside using the radiant working fluid flowing through it. For example, when a low-temperature radiant working fluid flows through the radiant heat exchanger 210, the radiant heat exchanger 210 can cool the room; while when a high-temperature radiant working fluid flows through the radiant heat exchanger 210, the radiant heat exchanger 210 can heat the room.

[0066] Optionally, the number of radiant heat exchangers 210 may be one or more, such as Figure 1 There are two radiant heat exchangers 210; multiple radiant heat exchangers 210 can be connected in series or in parallel.

[0067] Optionally, the type of radiation working medium may be water or ethylene glycol, etc.

[0068] Optionally, the radiant heat exchanger 210 can be used for underfloor heating networks, column-type, or finned radiators / coolers, etc.

[0069] In the aforementioned embodiments, the air conditioning system can independently control the indoor heat exchanger 110 to exchange heat with the outside, and / or control the indoor heat exchanger 110 to supply cooling / heating to the radiant heat exchange module 200 so as to exchange heat with the outside through the radiant heat exchange module 200.

[0070] In some alternative embodiments, combined with Figure 2 As shown, the air conditioning system also includes an indoor energy storage component 300, which can controllably store or release cold / heat energy from the outside.

[0071] It should be noted that one possible method for the indoor energy storage component 300 to store cold energy is that after the high-temperature radiative working fluid inside the indoor energy storage component 300 is transferred to the outside, its heat is absorbed by the outside, causing its temperature to drop, thus lowering the radiative working fluid to a low-temperature state, and then it is returned to the indoor energy storage component 300 for storage. That is, in this embodiment, the cold energy is stored in the indoor energy storage component 300 using the radiative working fluid itself as a carrier.

[0072] Correspondingly, one of the possible ways for the indoor energy storage component 300 to release cold energy is that after the low-temperature radiative working fluid inside the indoor energy storage component 300 is transported to the outside, it absorbs the heat from the outside (equivalent to releasing cold energy to the outside), causing its own temperature to rise, making the radiative working fluid a medium-high temperature state, and then sending it back to the indoor energy storage component 300.

[0073] Similarly, one possible way for the indoor energy storage component 300 to store heat is that after the low-temperature radiative working fluid inside the indoor energy storage component 300 is transported to the outside, it absorbs heat from the outside, causing its own temperature to rise, making the radiative working fluid a medium-high temperature state, and then returning it to the indoor energy storage component 300 for storage.

[0074] Correspondingly, one possible way for the indoor energy storage component 300 to release heat is that after the high-temperature radiative working fluid inside the indoor energy storage component 300 is transported to the outside, its heat is absorbed by the outside, causing its own temperature to drop, making the radiative working fluid a low-temperature state, and then sent back to the indoor energy storage component 300.

[0075] In some other alternative embodiments, the indoor energy storage assembly 300 also includes a phase change material filled therein, which can absorb cold / heat in the radiative working fluid flowing through it and release cold / heat to the radiative working fluid; therefore, in this embodiment, cold / heat can also be stored in the indoor energy storage assembly 300 using the phase change material as a carrier.

[0076] In this embodiment of the disclosure, the main body of the indoor energy storage component 300 is constructed in the form of a box, and the interior is used as a space to contain the radiating working fluid.

[0077] Specifically, the indoor energy storage component 300 mainly includes components such as an indoor energy storage box and an indoor drive pump.

[0078] Here, the indoor energy storage box is connected in series with the radiant pipe 220, and the indoor energy storage box is used to store the radiant working fluid. In this embodiment, the box body of the indoor energy storage box is made of heat-insulating or low thermal conductivity material, or heat insulation layers are provided on the inner and outer walls of the box body to reduce the heat exchange between the environment in which the indoor energy storage box is located and the radiant working fluid inside the indoor energy storage box, thereby enabling the storage of cold / heat for a longer period of time.

[0079] Optionally, an on / off valve is provided on the liquid inlet side of the indoor energy storage tank, which can be used to control the on / off state of the liquid inlet side pipeline of the energy storage tank; alternatively, another on / off valve is provided on the liquid outlet side of the indoor energy storage tank, which can be used to control the on / off state of the energy storage tank and / or the liquid outlet side.

[0080] In some embodiments, an indoor drive pump is connected in series in the radiant conduit 220 and is configured to controllably drive the radiant working fluid to circulate along the radiant conduit 220. In this embodiment, the power provided by the indoor drive pump can be used not only to drive the radiant working fluid transport between the indoor energy storage tank and the indoor heat exchanger 110, but also to drive the radiant working fluid transport between the indoor energy storage tank and the outdoor heat exchanger 120.

[0081] In some alternative embodiments, since some types of radiant working fluids themselves will change in volume when the heat / cold energy changes, this may lead to the change in the volume of the radiant working fluid exceeding the design requirements of the indoor energy storage tank. In order to improve the safety of use and reduce the damage to the indoor energy storage tank caused by the change in the volume of the radiant working fluid, the indoor energy storage assembly 300 also includes a safety valve connected in series with the radiant pipeline 220 and located on the liquid outlet side of the indoor energy storage tank. The safety valve is configured to open to release pressure when the flow path pressure of the radiant pipeline 220 is greater than a set pressure value.

[0082] Optionally, the safety valve is set to a pressure of 0.5 MPa. Here, the set pressure of the safety valve can be adaptively adjusted according to the load-bearing capacity of the indoor energy storage tank; this application is not limited to this.

[0083] In some alternative embodiments, during long-term use of the indoor thermal storage module, there may be problems with the introduction of impurities into the internal flow path. Therefore, in order to reduce the impact of these impurities on other pipeline components of the indoor energy storage module, such as to avoid clogging the aforementioned indoor drive pump, the indoor energy storage assembly 300 also includes a filter, which is configured to filter out impurities from the radiative working fluid flowing through the indoor energy storage box.

[0084] Optionally, a filter is installed on the inlet side of the aforementioned indoor drive pump to filter and purify the radioactive working fluid before it flows into the indoor drive pump.

[0085] In some alternative embodiments, the indoor energy storage assembly 300 also includes an expansion tank configured to provide variable volume space for volume changes caused by temperature variations in the radiant medium in the radiant conduit 220. Here, the expansion tank operates as follows: when pressurized external medium enters the expansion tank, the nitrogen gas sealed inside is compressed. According to Boyle's gas law, the gas volume decreases and the pressure increases after compression, thereby freeing up part of the tank volume originally occupied by the gas, and allowing the medium to fill this part of the volume until the gas pressure inside the expansion tank matches the hydraulic pressure of the medium. When the medium pressure decreases (the gas pressure inside the expansion tank is greater than the hydraulic pressure of the medium), the gas expands and expels the medium from the tank so that this part of the medium returns to the radiant conduit 220 to participate in the circulation.

[0086] The expansion tank can provide a certain volume change space for the radiation working medium, thereby reducing the squeezing force of the volume change of the radiation working medium on the relevant components of the indoor energy storage component 300.

[0087] Similarly, in some alternative embodiments, the indoor energy storage assembly 300 also includes a buffer tank configured to store at least a portion of the radiant working fluid of the radiant conduit 220 and to provide variable capacity space for volume changes caused by temperature variations in the radiant working fluid.

[0088] Compared to refrigerant heat exchange modules, indoor units of radiant heat exchange modules, both operating in cooling mode, have different functions. Radiant heat exchange modules have a separate drip tray to collect condensation, thus minimizing its impact on the indoor environment. In contrast, radiant heat exchange modules typically lack a drip tray, causing condensation to drip onto floors and walls, potentially leading to mold growth and slippery conditions.

[0089] Therefore, in response to the condensation problem of the aforementioned radiative heat exchange module, combined with Figure 3 As shown in the embodiments, this disclosure also discloses a control method for preventing condensation in an air conditioning system. The air conditioning system can be the type shown in the above embodiments, or other similar types of air conditioning systems. The main steps of the anti-condensation control method include:

[0090] S31. During the cooling operation of the air conditioning system, obtain the radiant operating temperature of the radiant heat exchange module;

[0091] In this embodiment, when the air conditioning system is running in cooling mode, the radiant heat exchange module is in the activated state, and the radiant heat exchange module uses the input cooling capacity to cool and lower the indoor environment.

[0092] Optionally, when the air conditioning system is running in cooling mode, the refrigerant heat exchange module is in the active state, and the indoor heat exchanger of the refrigerant heat exchange module is used simultaneously to cool the indoor environment and to deliver cooling capacity to the radiant heat exchange module.

[0093] In this operating state, the air guide plate of the indoor unit of the refrigerant heat exchange module is opened, the indoor fan runs at medium and high speed, and the indoor air circulates into the indoor unit and exchanges heat with the indoor heat exchanger to deliver low-temperature airflow into the room; and the refrigerant in the refrigerant heat exchange tube section of the indoor heat exchanger exchanges heat with the radiant working fluid in the radiant working fluid heat exchange tube section to deliver low-temperature radiant working fluid to the radiant heat exchange module.

[0094] Alternatively, when the air conditioning system is running in cooling mode, the refrigerant heat exchange module is in a deactivated state. At this time, the indoor heat exchanger of the refrigerant heat exchange module does not cool the indoor environment; it is only used to deliver cooling capacity to the radiant heat exchange module.

[0095] In this operating state, the air guide plate of the indoor unit of the refrigerant heat exchange module is closed, and the indoor fan runs at low speed or stops, so that only the refrigerant in the refrigerant heat exchange tube section of the indoor heat exchanger exchanges heat with the radiant working fluid in the radiant working fluid heat exchange tube section, thereby delivering low-temperature radiant working fluid to the radiant heat exchange module.

[0096] In this embodiment of the disclosure, since it is aimed at condensation, the radiant operating temperature of the radiant heat exchange module mainly refers to the surface temperature of the radiant heat exchanger in direct or indirect contact with the air. For example, taking underfloor heating pipes as an example, they are generally laid below the ground of residents and the underfloor heating pipes are indirectly conductive to the air through the ground. Therefore, the condensation problem mainly occurs on the ground. In this case, the radiant operating temperature can be the real-time temperature of the ground at the corresponding location where the underfloor heating pipes are laid. As another example, for radiators, they are generally placed on the wall and are in direct conductive contact with the air. Therefore, the condensation problem occurs on the outer surface of the radiator. In this case, the radiant operating temperature can be the real-time temperature of the outer surface of the radiator.

[0097] Optionally, the air conditioning system is also equipped with a temperature sensor, which can be used to detect and obtain the radiant operating temperature of the radiant heat exchange module. The specific location and installation method of the temperature sensor can be flexibly selected according to the type of radiant heat exchanger, and this application does not limit it in this regard.

[0098] S32. When the radiation working temperature of the radiant heat exchange module is determined to meet the condensation conditions, control the refrigerant heat exchange module to perform dehumidification operation.

[0099] The condensation condition is used to characterize whether the radiant heat exchange module is in a state prone to condensation. When the radiant operating temperature of the radiant heat exchange module meets the condensation condition, it means that moisture in the air easily forms dew on the surface of the radiant heat exchanger or the surface in indirect contact with it; while when the radiant operating temperature of the radiant heat exchange module does not meet the condensation condition, it means that moisture in the air does not easily form dew on the surface of the radiant heat exchanger.

[0100] When the condensation conditions are met, the refrigerant heat exchange module enters the dehumidification mode. The temperature of the refrigerant input to the indoor heat exchanger decreases and the amount of refrigerant increases, which lowers the surface temperature of the indoor heat exchanger. As a result, dew is condensed when indoor air flows through the indoor heat exchanger. Therefore, by using the refrigerant heat exchange module to reduce the humidity in the indoor environment and improve the indoor humidity environment, the condensation that may occur on the radiant heat exchange module itself can be effectively reduced without affecting the normal use of the radiant heat exchange module.

[0101] In some alternative embodiments, the condensation conditions include:

[0102] T dew -T 辐射工作 >T1;

[0103] Among them, T dew T represents the current dew point temperature of the indoor area. 辐射工作 T1 is the radiation working temperature, and T1 is the first temperature difference threshold and is a positive value.

[0104] The radiation operating temperature T of the radiation heat exchange module 辐射工作 Compared with the current dew point temperature T of the indoor area dew If the above inequality relationship is satisfied, it indicates that the radiation operating temperature T of the radiation heat exchange module is... 辐射工作 Below the current dew point temperature T of the indoor area dew To a certain extent, the radiation working temperature T 辐射工作 Condensation is likely to occur at these locations.

[0105] Optionally, the value of T1 ranges from 1.5 to 2.5℃. In this embodiment, the value of T1 is 2℃.

[0106] Optional, the current dew point temperature T of the indoor area. dew The dew point temperature can be obtained by detecting the current ambient temperature and humidity of the indoor area and using the dew point temperature calculation formula or the dew point temperature correspondence table, but this application is not limited to this.

[0107] In some alternative embodiments, combined with Figure 4 The main steps of controlling the refrigerant heat exchange module to perform dehumidification in step S32 above include:

[0108] S321. Determine the temperature difference between the current dew point temperature and the radiation working temperature;

[0109] For example, the temperature difference can be calculated using the following formula:

[0110] △T=T dew -T 辐射工作 ;

[0111] Where △T is the temperature difference between the current dew point temperature and the radiation working temperature;

[0112] S322. Based on the temperature difference value, select the target dehumidification efficiency parameter that matches it from the preset correlation relationship;

[0113] Optionally, the air conditioning system may have a pre-set association that includes a mapping relationship between one or more temperature difference values ​​and dehumidification efficiency parameters.

[0114] Therefore, after determining the temperature difference between the current dew point temperature and the radiation working temperature according to step S321, the corresponding dehumidification efficiency parameter can be determined by looking up this correlation, and used as the target dehumidification efficiency parameter.

[0115] Optionally, the types of dehumidification efficiency parameters include, but are not limited to, parameters that can change the dehumidification efficiency of the refrigerant heat exchange module, such as the evaporation temperature of the indoor heat exchanger, the fan speed of the indoor fan, the opening degree of the throttling device, the compressor frequency, the fan speed of the outdoor fan, and the opening angle of the air guide vane. The air conditioning system can select and adjust one or more of the above dehumidification efficiency parameters to control the dehumidification operation of the refrigerant heat exchange module as needed.

[0116] In some embodiments, the dehumidification efficiency parameters include the evaporation temperature of the indoor heat exchanger and the fan speed of the indoor fan.

[0117] The preset associations in the air conditioning system may include:

[0118] When T1 < T dew -T 辐射工作 When <T2, the evaporation temperature of the indoor heat exchanger is set to the first evaporation temperature, and / or the indoor fan is set to high speed;

[0119] In T dew -T 辐射工作 When the temperature is greater than T2, the evaporation temperature of the indoor heat exchanger is set to the second evaporation temperature, and / or the indoor fan is set to low speed.

[0120] The first evaporation temperature is higher than the second evaporation temperature.

[0121] Optionally, the value of T2 can range from 7.5 to 8.5℃. In this embodiment, the value of T2 is 8℃.

[0122] That is, in this embodiment of the present disclosure, the greater the temperature difference between the current dew point temperature and the radiation operating temperature, the stronger the dehumidification efficiency corresponding to the dehumidification efficiency parameter selected by the air conditioning system; thus, when the condensation situation characterized by the larger temperature difference is more severe, the dehumidification of the refrigerant heat exchange module can be accelerated.

[0123] Optionally, the first evaporation temperature and the second evaporation temperature are set according to the following relationship:

[0124] T 蒸发1 -T 蒸发2 ≥Tz;

[0125] Among them, T 蒸发1 T is the first evaporation temperature. 蒸发2 Tz is the second evaporation temperature, and Tz is the preset evaporation temperature difference.

[0126] Optionally, Tz can be set to 5℃.

[0127] In some alternative embodiments, the first evaporation temperature is determined based on the current ambient temperature of the indoor environment.

[0128] For example, the air conditioning system also has another pre-set association relationship, which includes one or more mapping relationships between indoor ambient temperature and evaporation temperature; then when performing the above step S322, the current ambient temperature of the indoor environment can be detected first, and then the corresponding evaporation temperature can be determined according to the association relationship and used as the first evaporation temperature.

[0129] S323. Control the dehumidification operation of the refrigerant heat exchange module according to the target dehumidification efficiency parameters.

[0130] In this embodiment of the disclosure, the dehumidification efficiency parameters are precisely matched by a preset correlation to control the dehumidification operation, so that the actual dehumidification efficiency of the refrigerant heat exchange module can meet the dehumidification requirements of the current humidity conditions.

[0131] In some optional embodiments, after determining in step S31 that the condensation conditions are met based on the radiant operating temperature of the radiant heat exchange module, the steps further include: controlling to reduce or stop the amount of cooling input from the indoor heat exchanger of the refrigerant heat exchange module to the radiant heat exchange module.

[0132] In this embodiment, by reducing or stopping the input of cooling energy to the radiant heat exchange module, the heat exchange capacity of the radiant heat exchange module can be reduced, causing its temperature to rise and thus reducing condensation. On the other hand, more cooling energy in the indoor heat exchanger can be consumed as condensation at the indoor unit, thereby enhancing the dehumidification efficiency of the indoor unit.

[0133] Optionally, as described in the foregoing embodiments, a radiant working fluid is used as a carrier of cooling capacity. Therefore, when implementing this embodiment, the cooling capacity input from the indoor heat exchanger to the radiant heat exchange module can be reduced by decreasing the flow rate of the radiant working fluid circulating in the radiant pipe.

[0134] In some optional embodiments, the control method for preventing condensation in an air conditioning system further includes: when it is determined based on the radiant operating temperature of the radiant heat exchange module that the condensation conditions are not met, controlling the refrigerant heat exchange module and the radiant heat exchange module to cool the indoor area.

[0135] If the radiant operating temperature of the radiant heat exchange module does not meet the condensation condition, it means that the moisture in the air is not easy to form dew on the surface of the radiant heat exchanger. In this case, the original operating state can be maintained, such as continuing to run the cooling mode using the refrigerant heat exchange module and the radiant heat exchange module.

[0136] In some alternative embodiments, the control method for preventing condensation in an air conditioning system further includes: determining that a silent operation command has been received; controlling the cessation of cooling of the indoor area by the refrigerant heat exchange module; and controlling the cooling of the indoor area by the radiant heat exchange module.

[0137] In this embodiment, considering that the cooling operation of the refrigerant heat exchange module requires the indoor fan to also be running, and the indoor fan will generate a certain amount of noise, affecting the quietness of the indoor environment; therefore, in this embodiment, after receiving the silent operation command, only the radiant heat exchange module is activated to cool the indoor area, thereby achieving the purpose of low-noise cooling.

[0138] Figure 5 This is a schematic diagram of another control method for preventing condensation in an air conditioning system provided in an embodiment of this disclosure.

[0139] Combination Figure 5 As shown in the embodiments of this disclosure, another control method for preventing condensation in air conditioning systems is also disclosed, the main steps of which include:

[0140] S501, The air conditioning system is turned on and is in cooling mode;

[0141] In this embodiment, after the air conditioning system is turned on and put into cooling mode, the refrigerant heat exchange mode enters the cooling mode and the radiant heat exchange module enters the cooling mode.

[0142] S502, Detect the radiation operating temperature T of the radiation heat exchange module 辐射工作 ;

[0143] In this embodiment, the radiation operating temperature T is obtained by acquiring the detection data from the temperature sensor installed in the radiation heat exchange module. 辐射工作 ;

[0144] S503, Determine if T dew-T 辐射工作 If the temperature is >2℃, proceed to step S504; otherwise, proceed to step S507.

[0145] S504, Determine if T dew -T 辐射工作 <8℃, if yes, proceed to step S505, if no, proceed to step S506;

[0146] S505, The refrigerant heat exchange module activates the first dehumidification mode; and returns to step S502.

[0147] In this embodiment, under the first dehumidification mode, the evaporation temperature of the indoor heat exchanger is set to T. 蒸发1 The indoor fan is set to high speed.

[0148] S506, The refrigerant heat exchange module activates the second dehumidification mode; and returns to step S502.

[0149] In this embodiment, under the second dehumidification mode, the evaporation temperature of the indoor heat exchanger is set to T. 蒸发2 The indoor fan is set to low speed.

[0150] S507, the radiant heat exchange module remains in cooling mode;

[0151] S508. Has a mute command been received? If yes, proceed to step S509; if no, proceed to step S510.

[0152] In this embodiment, the silent operation command can be a control command input by the user to the air conditioning system through input devices such as a remote control or touch panel; or, the air conditioning system can automatically detect the ambient noise level in the indoor environment, and if the ambient noise level is high, it can automatically generate a silent operation command; or, the air conditioning system can collect the user's vital signs data to automatically determine whether the user is asleep, and if so, it can automatically generate a silent operation command.

[0153] S509, Only activate the radiant heat exchange module to operate in cooling mode; This process is now complete.

[0154] In the current mode, the indoor fan stops running, or the indoor fan runs at a very low speed (such as the low speed setting on some models);

[0155] S510, Activate the refrigerant heat exchange module and the radiant heat exchange module to run in cooling mode simultaneously; this process is now complete.

[0156] In this embodiment, the system can flexibly choose to maintain cooling or switch to dehumidification operation using the refrigerant heat exchange module based on the different radiant operating temperature states of the radiant heat exchange module, thereby effectively reducing condensation problems during the cooling process of the radiant heat exchange module.

[0157] Figure 6 This is a schematic diagram of a control device for an air conditioning system provided in an embodiment of this disclosure.

[0158] Combination Figure 6 As shown in the embodiments of this disclosure, a control device for preventing condensation in an air conditioning system is also provided. This air conditioning system can be the type of air conditioning system shown in the above embodiments, or other similar types of air conditioning systems. The control device includes:

[0159] The acquisition unit 61 is used to acquire the radiative operating temperature of the radiative heat exchange module when the air conditioning system is running in cooling mode.

[0160] The dehumidification control unit 62 is used to control the refrigerant heat exchange module to perform dehumidification operation when the radiant operating temperature of the radiant heat exchange module is determined to meet the condensation condition; wherein the condensation condition is used to characterize the radiant heat exchange module being in a state prone to condensation.

[0161] In some embodiments, condensation conditions include:

[0162] T dew -T 辐射工作 >T1;

[0163] Among them, T dew T represents the current dew point temperature of the indoor area. 辐射工作 T1 is the radiation working temperature, and T1 is the first temperature difference threshold and is a positive value.

[0164] In some embodiments, the dehumidification control unit 62 is specifically used for:

[0165] Determine the temperature difference between the current dew point temperature and the radiation operating temperature;

[0166] Based on the temperature difference, select the target dehumidification efficiency parameter that matches it from the preset correlation;

[0167] Control the dehumidification operation of the refrigerant heat exchange module according to the target dehumidification efficiency parameters.

[0168] In some embodiments, the dehumidification efficiency parameters include one or more of the following: the evaporation temperature of the indoor heat exchanger and the fan speed of the indoor fan;

[0169] The preset association relationships should include at least:

[0170] When T1 < T dew -T 辐射工作When <T2, the evaporation temperature of the indoor heat exchanger is set to the first evaporation temperature, and / or the indoor fan is set to high speed;

[0171] In T dew -T 辐射工作 When the temperature is greater than T2, the evaporation temperature of the indoor heat exchanger is set to the second evaporation temperature, and / or the indoor fan is set to low speed.

[0172] The first evaporation temperature is higher than the second evaporation temperature.

[0173] In some embodiments, the control device further includes a cooling capacity control unit, which controls to reduce or stop the cooling capacity input from the indoor heat exchanger of the refrigerant heat exchange module to the radiant heat exchange module after determining that the condensation conditions are met based on the radiant operating temperature of the radiant heat exchange module.

[0174] In some embodiments, the cooling capacity control unit is further configured to:

[0175] When the radiant operating temperature of the radiant heat exchange module does not meet the condensation conditions, the refrigerant heat exchange module and the radiant heat exchange module are controlled to cool the indoor area.

[0176] In some embodiments, the control device further includes a noise control unit, which is used to:

[0177] Confirmation that the mute command has been received;

[0178] Controls stop the refrigerant heat exchange module from cooling the indoor area, and controls the use of the radiant heat exchange module to cool the indoor area.

[0179] Combination Figure 7 As shown, this disclosure provides a control device for an air conditioning system, including a processor 100 and a memory 101. Optionally, the device may further include a communication interface 102 and a bus 103. The processor 100, communication interface 102, and memory 101 can communicate with each other via the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call logical instructions in the memory 101 to execute the control method for preventing condensation in an air conditioning system described in the above embodiment.

[0180] Furthermore, the logic instructions in the aforementioned memory 101 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0181] The memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, thereby implementing the control method for preventing condensation in the air conditioning system described in the above embodiments.

[0182] The memory 101 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 101 may include high-speed random access memory and may also include non-volatile memory.

[0183] This disclosure provides an air conditioning system that includes the aforementioned control device for preventing condensation in the air conditioning system.

[0184] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the above-described control method for preventing condensation in an air conditioning system.

[0185] This disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the aforementioned control method for preventing condensation in an air conditioning system.

[0186] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0187] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0188] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0189] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0190] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0191] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description; sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for preventing condensation in an air conditioning system, characterized in that, The air conditioning system has a refrigerant heat exchange module and a radiant heat exchange module that can exchange heat with the same indoor area respectively. The cooling input of the radiant heat exchange module comes from the indoor heat exchanger of the refrigerant heat exchange module. The indoor heat exchanger is a three-medium heat exchanger, which is configured to allow the flowing refrigerant to exchange heat with the radiant working fluid and / or air. The control method includes: During the cooling operation of the air conditioning system, the radiative operating temperature of the radiative heat exchange module is obtained; When the condensation condition is met based on the radiant operating temperature of the radiant heat exchange module, the refrigerant heat exchange module is controlled to perform dehumidification operation, and the cooling capacity input from the indoor heat exchanger of the refrigerant heat exchange module to the radiant heat exchange module is controlled to be reduced or stopped; wherein the condensation condition is used to characterize that the radiant heat exchange module is in a state prone to condensation.

2. The control method according to claim 1, characterized in that, The condensation conditions include: T dew -T 辐射工作 >T1; Among them, T dew T represents the current dew point temperature of the indoor area. 辐射工作 The radiation operating temperature is T1, which is the first temperature difference threshold and is a positive value.

3. The control method according to claim 2, characterized in that, Controlling the refrigerant heat exchange module to perform dehumidification includes: Determine the temperature difference between the current dew point temperature and the radiation operating temperature; Based on the temperature difference value, a target dehumidification efficiency parameter that matches it is selected from the preset correlation relationship; The dehumidification operation of the refrigerant heat exchange module is controlled according to the target dehumidification efficiency parameter.

4. The control method according to claim 3, characterized in that, The dehumidification efficiency parameters include one or more of the following: the evaporation temperature of the indoor heat exchanger and the fan speed of the indoor fan; The preset association relationship includes at least: In T1 < T dew -T 辐射工作 When <T2, the evaporation temperature of the indoor heat exchanger is set to the first evaporation temperature, and / or the indoor fan is set to high speed; In T dew -T 辐射工作 When the temperature is greater than T2, the evaporation temperature of the indoor heat exchanger is set to the second evaporation temperature, and / or the indoor fan is set to low speed. The first evaporation temperature is higher than the second evaporation temperature.

5. The control method according to claim 1, characterized in that, Also includes: After determining that the condensation conditions are not met based on the radiant operating temperature of the radiant heat exchange module, the refrigerant heat exchange module and the radiant heat exchange module are controlled to cool the indoor area.

6. The control method according to claim 1 or 5, characterized in that, Also includes: Confirmation that the mute command has been received; Controls to stop the refrigerant heat exchange module from cooling the indoor area, and controls the use of the radiant heat exchange module to cool the indoor area.

7. A control device for preventing condensation in an air conditioning system, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the control method for preventing condensation in an air conditioning system as described in any one of claims 1 to 6.

8. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the control method for preventing condensation in an air conditioning system as described in any one of claims 1 to 6.

9. An air conditioning system, characterized in that, The air conditioning system has a refrigerant heat exchange module and a radiant heat exchange module that can exchange heat with the same indoor area respectively. The cooling input of the radiant heat exchange module comes from the indoor heat exchanger of the refrigerant heat exchange module. The indoor heat exchanger is a three-medium heat exchanger, which is configured to allow the flowing refrigerant to exchange heat with the radiant working fluid and / or air. The air conditioning system also includes the control device for preventing condensation in the air conditioning system as described in claim 7.

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