Humidity adjusting system and control method of humidity adjusting system

Abstract

The invention provides a humidity adjusting system and a control method of the humidity adjusting system. The humidity adjusting system comprises: an indoor unit for adjusting the indoor temperature by using a refrigerant; the outdoor unit is in refrigerant communication with the indoor unit; the air supply module is used for introducing air; the humidity adjusting system comprises an air supply module and a humidity adjusting module, the humidity adjusting module is used for adjusting the humidity of air guided by the air supply module when communicating with the air supply module, the humidity adjusting module comprises a humidifying unit and a heat exchange unit, the heat exchange unit communicates with an outdoor unit refrigerant, and the humidity adjusting system further comprises a control module. When the outdoor unit is in the defrosting mode, the control module enables the first valve of the heat exchange unit to be closed so as to prevent a refrigerant from flowing into the heat exchange unit, so that refrigeration treatment of the heat exchange unit is stopped, and the freezing risk of the humidity adjusting module is reduced.

Description

Technical Field

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

[0002] With the continuous advancement of science and technology and the improvement of living standards, people have higher and higher requirements for living environment, among which indoor temperature and humidity are important indicators of living environment. For example, in winter, the indoor air is relatively dry, and when the indoor air conditioner is turned on in heating mode, the air drier degree will be aggravated; for another example, on rainy days, the indoor air is relatively humid, and the indoor humidity level needs to be reduced.

[0003] The humidity control system can adjust the indoor humidity to meet people's requirements.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0005] The humidity control system sometimes also has a heat exchange unit that uses a refrigerant to perform heat exchange, whereby, for example, air that has exchanged heat with the heat exchange unit then flows through the humidity control module, thereby being able to adjust both the humidity and temperature of the room.

[0006] In winter, the outdoor unit connected to the refrigerant of the heat exchange unit sometimes needs to be defrosted. During the defrosting process, the heat exchange unit cools and the outdoor unit heats, thereby removing frost on the surface of the heat exchanger of the outdoor unit.

[0007] The inventors have discovered that when the outdoor unit of the humidity control system is defrosting, the cold air cooled by the heat exchange unit is blown toward the humidity control module, causing the humidity control module to be at risk of freezing.

[0008] In order to solve at least one of the above problems, the embodiments of the present application provide a humidity control system and a control method of the humidity control system. In the humidity control system, when the outdoor unit is in defrost mode, the refrigerant is prevented from flowing into the heat exchange unit, thereby stopping the refrigeration process of the heat exchange unit and reducing the freezing risk of the humidity control module.

[0009] According to a first aspect of an embodiment of the present application, a humidity control system is provided, comprising: an indoor unit, which uses a refrigerant to adjust the indoor temperature; an outdoor unit, which is connected to the refrigerant of the indoor unit; an air supply module, which is used to introduce air; and a humidity control module, which, when connected to the air supply module, is used to adjust the humidity of the air guided by the air supply module, the humidity control module comprising a humidifying unit and a heat exchange unit, the heat exchange unit being connected to the refrigerant of the outdoor unit, the humidity control system also comprising a control module, and when the outdoor unit is in a defrost mode, the control module closes the first valve of the heat exchange unit to prevent the refrigerant from flowing into the heat exchange unit.

[0010] According to the second aspect of the embodiment of the present application, a control method for a humidity control system is provided, and the humidity control system is the humidity control system described in the first aspect of the embodiment of the present application, and the method includes: when the outdoor unit is in a defrost mode, the control module closes the first valve of the heat exchange unit to prevent the refrigerant from flowing into the heat exchange unit.

[0011] One of the beneficial effects of the embodiments of the present application is that in a humidity control system, when the outdoor unit is in defrost mode, the first valve of the heat exchange unit is closed to prevent the refrigerant from flowing into the heat exchange unit, thereby stopping the refrigeration process of the heat exchange unit and preventing the refrigerated cold air from flowing to the humidity control module, thereby reducing the risk of freezing of the humidity control module.

[0012] 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.

[0013] 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.

[0014] 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

[0015] 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.

[0016] In the attached picture:

[0017] Figure 1 is a schematic diagram of an implementation of the humidity control system of Example 1 of the present application;

[0018] Figure 2 is a schematic diagram of a guide assembly of an air supply module in Example 1 of the present application;

[0019] Figure 3 is a flow chart of the control performed by the control module 190 in the defrost mode;

[0020] Figure 4 It is a block diagram of the control method of the humidity control system of Example 2 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 humidity control system.

[0024] Figure 1 It is a schematic diagram of an implementation of the humidity control system of Example 1 of the present application.

[0025] exist Figure 1 In the figure, the solid lines between modules or devices represent refrigerant pipelines; in addition, the pipelines with arrows connecting modules or devices are air pipelines; in addition, the dotted lines between modules or devices represent communication connections, which can be wired connections or wireless connections.

[0026] like Figure 1 As shown, the humidity control system 100 includes:

[0027] An air supply module 110, which is used to introduce air;

[0028] The humidity control module 120, when connected to the air supply module 110, is used to adjust the humidity of the air guided by the air supply module 110;

[0029] An indoor unit 160 that uses a refrigerant to adjust the indoor temperature;

[0030] The outdoor unit 170 is in refrigerant communication with the indoor unit 160 . For example, the refrigerant may circulate between the indoor unit 160 and the outdoor unit 170 .

[0031] In some embodiments, the air supply module 110 may be a fresh air processing device, a total heat exchange device (e.g., with or without an internal circulation function), or a ventilation device (e.g., with or without an internal circulation function). The air supply module 110 may include an air supply unit, such as a fan or other components. In addition, the air supply module 110 may also have a guide component (not shown), which may adjust the gas flow direction in the air supply module 110.

[0032] Figure 2 It is a schematic diagram of the guide assembly of the air supply module of Example 1 of the present application.

[0033] like Figure 2 As shown, the air supply module 110 may have a first opening 1101 , a second opening 1102 , a third opening 1103 , a fourth opening 1104 , a guide assembly 1105 and a fan (not shown).

[0034] The first opening 1101 is connected to the outdoor air inlet duct 1106 for introducing air from the outside; the second opening 1102 is connected to the outdoor air outlet duct 1107 for discharging air to the outside; the third opening 1103 is connected to the indoor return air duct 141 for receiving return air from the return air duct 141; the fourth opening 1104 is connected to the humidity control module 120 through a pipeline for delivering gas to the humidity control module 120.

[0035] The guide assembly 1105 can guide the airflow direction inside the air supply module 110, thereby switching the connection relationship between the openings.

[0036] For example, the guide assembly 1105 can be switched to a first connecting state, that is, the first opening 1101 and the fourth opening 1104 are connected, and the second opening 1102 and the third opening 1103 are connected, thereby: the outdoor air inlet duct 1106 can be connected to the humidity control module 120 through the first opening 1101 and the fourth opening 1104, thereby sending the outdoor air to the humidity control module 120; and the indoor return air duct 141 can be connected to the outdoor air outlet duct 1107 through the second opening 1102 and the third opening 1103, thereby sending the indoor return air to the outdoors.

[0037] For another example, the guide assembly 1105 can be switched to a second connection state, that is, the third opening 1103 and the fourth opening 1104 are connected, whereby the indoor return air duct 141 can be connected to the humidity control module 120 through the first opening 1101 and the fourth opening 1104, thereby delivering air to the humidity control module 120 through the indoor return air.

[0038] like Figure 1 As shown, the humidity control module 120 is disposed at the downstream side of the air supply module 110 , and is used to adjust the humidity of the air passing through the air supply module 110 .

[0039] In the embodiments of the present application, the “downstream side” refers to the downstream side in the air flow path, and the “upstream side” refers to the upstream side in the air flow path.

[0040] In some embodiments, the humidity control module 120 has the function of adjusting the humidity of the air. The humidity control module 120 can humidify the air and / or dehumidify the air.

[0041] For example, the humidity control module 120 includes a humidifying unit 1201 and a heat exchange unit 1202. For example, the heat exchange unit 1202 is located at the upstream side of the humidifying unit 1201, and is used to adjust the temperature of the introduced air (for example, heat the air), and input the temperature-adjusted air into the humidifying unit 1201, so that the humidification efficiency of the humidifying module can be improved and the temperature fluctuation can be reduced.

[0042] In some embodiments, the humidification unit 1201 can perform humidification based on various humidification principles, and includes at least one of a spray humidification unit, a wet film humidification unit, a rotary humidification unit, and a steam humidification unit.

[0043] For example, the wet film humidification unit performs humidification based on the wet film. The humidification unit 1201 may include a water tank and a wet film. The water in the water tank flows into the wet film. The wet film absorbs water to form a uniform water film. When the 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. In addition, the water tank may have a water inlet valve, which is connected to the water inlet pipe, so that the water tank can be replenished with water through the water inlet valve.

[0044] For another example, the rotary 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.

[0045] For another example, the spray humidification unit performs humidification based on spray humidification, and the spray humidification directly inputs water vapor into the room through the action of the spray head.

[0046] For another example, the steam 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 the regulating valve and is sprayed out from the spray hole with a sound-absorbing metal mesh, thereby achieving humidification of the air.

[0047] In some embodiments, the humidity control system of the present application may control multiple indoor spaces, and the humidity control module 120 supplies air to the multiple indoor spaces through multiple air pipes 140. Figure 1 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 may also be more spaces and more air ducts are provided for air supply.

[0048] In some embodiments, the indoor space that is the object of the humidity control system includes multiple areas, and the humidity control module 120 supplies air to the multiple areas of the indoor space through multiple air ducts 140 .

[0049] In some embodiments, the air duct 140 is an air inlet duct, and each air duct 140 corresponds to a different indoor space, or corresponds to a different area of ​​the indoor space.

[0050] In some embodiments, Figure 1 As shown, an indoor return air duct 141 may also be provided to provide centralized return air to each indoor space or each area.

[0051] In addition, if Figure 1 As shown, an indoor unit 160 is respectively installed in each indoor space.

[0052] In the embodiment of the present application, the indoor space (or the area of ​​the indoor space), the indoor unit 160, the air duct 140 and the air valve 150 correspond to each other. By controlling the air valve 150 corresponding to the indoor space, the flow rate of the humidified air entering the indoor space (or the area) can be independently controlled, so that the air humidity of the indoor space (or the area) can be independently adjusted.

[0053] Next, an air conditioning system including the indoor unit 160 and the outdoor unit 170 will be described.

[0054] The air conditioning system may be a commercial air conditioning system or a domestic air conditioning system.

[0055] In some embodiments, the air conditioning system may include at least one group of outdoor units and at least one indoor unit 160 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 170; for a group of outdoor units, the group of outdoor units is connected to at least one indoor unit 160.

[0056] For example, the air conditioning system includes an outdoor unit 170 and an indoor unit 160 connected to the outdoor unit.

[0057] For example, the air conditioning system includes one outdoor unit 170 and at least two indoor units 160 connected to the outdoor unit.

[0058] For example, the air conditioning system includes at least two outdoor units 170 and at least two indoor units 160 connected to the at least two outdoor units 170 .

[0059] For example, a group of outdoor units and at least one indoor unit 160 connected to the group of outdoor units constitute a refrigerant system, or multiple groups of outdoor units and at least one indoor unit 160 respectively connected to the multiple groups of outdoor units constitute multiple refrigerant systems. Thus, the air-conditioning system can include one refrigerant system or multiple refrigerant systems.

[0060] In some embodiments, the outdoor unit 170 and the indoor unit 160 may be air-conditioning devices of various models, types, forms, and capacities.

[0061] For example, the indoor unit 160 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 170 may be in the form of single fan top outlet, double fan top outlet, single fan front outlet or double fan front outlet.

[0062] like Figure 1 As shown, for example, one outdoor unit 170 is connected to a plurality of indoor units 160 via a refrigerant pipe 180 .

[0063] In addition, the refrigerant pipeline 180 is also connected to the heat exchange unit 1202 of the humidity control module 120 , thereby, the heat exchange unit 1202 can be connected to the refrigerant of the outdoor unit 170 , that is, the refrigerant can circulate between the heat exchange unit 1202 and the outdoor unit 170 .

[0064] In some embodiments, the actions of the air valve may include opening, closing, and adjusting the opening angle.

[0065] For example, when the air valve is closed, the air flow entering the indoor space corresponding to the air valve is blocked; when the air valve is opened, the air flow is allowed to enter the indoor space smoothly; when the opening angle of the air valve is adjusted, the flow rate of the air flow entering the indoor space can be adjusted.

[0066] Since the air flow controlled by the air valve has been humidified by the humidity control module 120, the blocking, inflow and flow rate of the air flow entering the indoor space are controlled by the action of the air valve, so that the air humidity of the indoor space can be independently adjusted.

[0067] like Figure 1 As shown, the humidity adjustment system 100 further includes a control module 190 .

[0068] In some embodiments, the control module 190 includes 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.

[0069] In some embodiments, the control module 190 may also include a gateway device that collects data from various modules and devices and generates required control instructions based on the data.

[0070] The control module 190 can control some components in the humidity control system, thereby controlling the operation of the humidity control system. The control process of the control module 190 will be described in the following embodiments.

[0071] In some embodiments, the indoor humidity data and the indoor temperature data may be acquired through the detection module 200 , and the detection module 200 may include at least one of a temperature sensor and a humidity sensor.

[0072] For example, the detection module 200 includes at least one of a first sensor set in the indoor space, a second sensor set in the indoor unit remote control, and a third sensor set at the indoor return air outlet. The first sensor is a humidity sensor, the second sensor is a temperature sensor, and the third sensor includes a humidity sensor and a temperature sensor.

[0073] In some embodiments, the first sensor includes multiple humidity sensors in different indoor spaces or in different areas of the same indoor space. In this way, the accuracy of humidity data can be improved, the accuracy of humidity adjustment can be further improved, and the comfort of users can be improved.

[0074] In some embodiments, the detection module 200 further includes a fourth sensor disposed at the output side of the humidity control module 120 , and the fourth sensor is a humidity sensor.

[0075] In some embodiments, the indoor humidity is determined using a detection value of at least one of the first sensor, the second sensor, the third sensor, and the fourth sensor.

[0076] In some embodiments, the control module 190 is connected to the indoor unit 160 via a wired connection; in addition, each indoor unit 160, between the indoor unit 160 and the outdoor unit 170, between the humidity control module 120 and the indoor unit 160, and between the air supply module 110 and the humidity control module 120 can all be connected via a wired connection.

[0077] In some embodiments, when the outdoor unit 170 is in the defrost mode, the control module 190 closes the first valve 1203 of the heat exchange unit 1202 of the humidity control module 120 to prevent the refrigerant from flowing into the heat exchange unit 1202. As a result, the refrigeration process of the heat exchange unit 1202 can be stopped, and the refrigerated cold air is prevented from flowing to the humidification unit 1201, thereby reducing the freezing risk of the humidity control module 120.

[0078] In some embodiments, the first valve 1203 may be located on the refrigerant pipeline 180 connecting the outdoor unit 170 and the heat exchange unit 1202, and is used to adjust the amount of refrigerant flowing into the heat exchange unit 1202. The first valve 1203 may be an electronic expansion valve, and in addition, the first valve 1203 may also be other types of valves, such as a ball valve.

[0079] When the outdoor unit 170 is in the defrost mode, the outdoor unit 170 heats the room and the indoor unit 160 can operate normally (eg, cool the room), whereby the refrigerant can circulate in the refrigeration system including the outdoor unit 170 and the indoor unit 160 .

[0080] In addition, the control module 190 can obtain the operation data of the outdoor unit 170, the operation data of the indoor unit 160, the data of the temperature sensor, etc., so as to determine whether the outdoor unit 170 is operating in the defrost mode. It should be noted that in the present application, "determining that the outdoor unit 170 is operating in the defrost mode" includes two situations: one situation is that based on at least one of the operation data of the outdoor unit 170, the operation data of the indoor unit 160 and the data of the temperature sensor, it is determined that the defrost operation conditions are met. At this time, the outdoor unit 170 may not have started the defrost mode and is about to enter the defrost mode; the other situation is that based on at least one of the operation data of the outdoor unit 170, the operation data of the indoor unit 160 and the data of the temperature sensor, it is determined that the outdoor unit 170 is in the defrost mode, that is, the defrost process is in progress and has not been completed.

[0081] In some embodiments, when the outdoor unit 170 is in the defrost mode, the control module 190 may adopt the following control scheme for the air supply module 110:

[0082] Control scheme 1: the control module 190 turns off the air supply module 110. For example, the control module 190 turns off the air supply module 110 on the basis of closing the first valve 1203.

[0083] Control scheme 2: When the outdoor temperature is lower than a temperature threshold, the control module 190 turns off the air supply module 110. The temperature threshold may be 5°C, 3°C, 0°C, etc. In addition, when the outdoor temperature is higher than or equal to the temperature threshold, the control module 190 may turn on the air supply module 110. For example, the control module 190 turns off the air supply module 110 when the outdoor temperature is lower than the temperature threshold after closing the first valve 1203.

[0084] Control scheme 3: when the outdoor temperature is within the first preset temperature range, the control module 190 enables the air supply module 110 to operate intermittently; and / or, when the outdoor temperature is within the second preset temperature range, the control module 190 turns off the air supply module 110; wherein the lowest temperature in the first preset temperature range may be higher than or equal to the highest temperature in the second preset temperature range, for example, the first preset temperature range is 5°C to 15°C, and the second preset temperature range is below 5°C.

[0085] The control module 190 can control the air supply module 110 by adopting one of the above-mentioned control schemes 1, 2, and 3, or by adopting a combination of two or more, for example, adopting a certain control scheme in the first time period and another control scheme in the second time period, etc.

[0086] The beneficial effect of the above-mentioned control scheme for the air supply module is that it can minimize the closing time of the air supply module 110 and meet the user's demand for ventilation.

[0087] In some embodiments, when the outdoor unit 170 is in the defrost mode, the control module 190 can also control the water inlet valve for replenishing water in the water tank of the humidifying unit 1201 to be in an open state. In this way, the water level in the water tank can be maintained to avoid too little water in the water tank.

[0088] In some embodiments, when the outdoor unit 170 is in the defrost mode, the control module 190 can cause the display of the humidity control system 100 to display information that the outdoor unit 170 is in the defrost mode. For example, the display can display predetermined characters or patterns to indicate that the outdoor unit 170 is in the defrost mode. In addition, the display can be, for example, a display on a wire controller of the humidity control system 100 or a display on a remote control panel.

[0089] In some embodiments, when the outdoor unit 170 ends the defrost mode, the control module 190 opens the first valve 1203 , and the control module 190 controls whether the air supply module 110 introduces outdoor air into the room according to the temperature of the heat exchange unit 1202 .

[0090] On the one hand, when the temperature of the condenser of the heat exchange unit 1202 is less than or equal to the predetermined temperature, the control module 190 controls the air supply module 110 to stop introducing outdoor air into the room. For example, the control module 190 does not start the fan (i.e., the air supply unit) of the air supply module 110, thereby preventing the moisture in the external air from condensing on the surface of the condenser.

[0091] On the other hand, when the temperature of the condenser of the heat exchange unit 1202 is greater than the predetermined temperature, the control module 190 controls the air supply module 110 to introduce outdoor air into the room. For example, the control module 190 starts the fan of the air supply module 110. In addition, the control module 190 can also switch the guide component 1105 to the first connection state, thereby allowing the heat exchange unit 1202 to heat the air and improve the comfort brought by the fresh air.

[0092] Figure 3 It is a flow chart of the control performed by the control module 190 in the defrost mode.

[0093] like Figure 3 As shown, the process includes:

[0094] Operation 301: The control module 190 controls the humidity control system to perform a normal humidity control operation;

[0095] Operation 302, the control module 190 determines whether the conditions of the defrost mode are met, and if "no", it returns to operation 301, and if "yes", it enters operation 303;

[0096] Operation 303: close the first valve 1203, control the air supply module 110 (for example, one or a combination of two or more of the above control schemes 1, 2, and 3 may be used for control), so that the water inlet valve of the water tank of the humidifying unit 1201 remains unchanged (for example, remains open), and the outdoor unit 170 enters the defrost mode;

[0097] Operation 304: The control module 190 determines whether the condition of the defrost mode is released. If "no", it means that the outdoor unit 170 is still in the defrost mode. Therefore, the process returns to operation 303. If "yes", the process proceeds to operation 305.

[0098] Operation 305, determining whether the temperature T of the heat exchange unit 1202 is greater than a predetermined temperature, if "no", proceed to operation 306, if "yes", proceed to operation 307;

[0099] Operation 306, opening the first valve 1203, and stopping the fan of the air supply module 110;

[0100] Operation 307, opening the first valve 1203, and the fan of the air supply module 110 starts to run;

[0101] Operation 308: The control module 190 controls the humidity control system to perform a normal humidity control operation.

[0102] In some embodiments, as shown in operation 301 or operation 308 , in a normal humidity control operation, the control module 190 may control the humidity control system 100 to operate in the first humidification mode or the second humidification mode.

[0103] The first humidification mode means that the humidity control module 120 adjusts the humidity of the air so that the humidity of the indoor air reaches a preset target humidity. For example, the first humidification mode can be implemented based on the indoor humidity fed back by the humidity sensor and the control of the control module 190.

[0104] The second humidification mode includes a first stage operation and a second stage operation which are alternately performed, and the first stage operation and the second stage operation may be alternately performed a predetermined number of times.

[0105] The first phase of operation includes:

[0106] During the first time period, the guide component 1105 in the air supply module 110 is controlled (for example, the guide component 1105 is switched to the first connection state mentioned above), so that the humidity control module 120 is connected to the outdoor air inlet duct 1106, and the air supply volume of the air supply module 110 is set to the maximum value (for example, the air supply volume of the fan of the air supply module 110 is set to the maximum value), so that the humidity control module 120 adjusts the humidity of the air guided by the air supply module 110.

[0107] The second phase of operation includes:

[0108] During the second time period, the guide component 1105 in the air supply module 110 is controlled (for example, the guide component 1105 is switched to the above-mentioned second connection state), so that the humidity control module 120 is connected to the indoor return air duct 141, and the air supply volume of the indoor return air duct 141 is set to the maximum value (for example, the air supply volume of the fan connected to the indoor return air duct 141 is set to the maximum value), so that the humidity control module 120 adjusts the humidity of the air guided by the return air duct 141 of the indoor unit.

[0109] The first time period and the second time period mentioned above may be equal, or the first time period may be greater than the second time period, or the first time period may be less than the second time period.

[0110] Through the above-mentioned second stage operation, the circulation of water vapor in the room can be promoted; through the above-mentioned first stage operation, fresh air can be supplied into the room to improve the comfort level.

[0111] According to the above embodiment, in the humidity control system, when the outdoor unit is in the defrost mode, the first valve of the heat exchange unit is closed to prevent the refrigerant from flowing into the heat exchange unit, thereby stopping the refrigeration process of the heat exchange unit and preventing the refrigerated cold air from flowing to the humidity control module, thereby reducing the risk of freezing of the humidity control module; in addition, when the outdoor unit is in the defrost mode, the air supply module stops introducing outdoor air into the room, thereby preventing the outdoor cold air from entering the room through the air supply module, and can minimize the time the air supply module is closed to meet the user's ventilation needs; in addition, when the outdoor unit is in the defrost mode, the water inlet valve for replenishing water in the water tank of the humidifying unit is opened, thereby maintaining the water level in the water tank and preventing the water level in the water tank from being too low; in addition, when the outdoor unit ends the defrost mode, the first valve is opened, and the air supply module is controlled according to the temperature of the heat exchange unit to introduce outdoor air into the room, thereby improving the comfort of the fresh air.

[0112] Example 2

[0113] Embodiment 2 of the present application provides a control method for a humidity control system, which is applicable to the humidity control system 100 described in Embodiment 1.

[0114] Figure 4 FIG. 2 is a schematic diagram of a control method of a humidity control system according to Embodiment 2. Figure 4 As shown, the control method includes:

[0115] Operation 401: When the outdoor unit is in a defrost mode, the control module closes a first valve of a heat exchange unit of a humidity control module to prevent refrigerant from flowing into the heat exchange unit.

[0116] like Figure 4 As shown, the control method may also include:

[0117] Operation 402: When the outdoor unit is in the defrost mode, the control module controls the air supply module;

[0118] Operation 403: when the outdoor unit is in the defrost mode, the control module enables the water inlet valve to be in an open state;

[0119] Operation 404: when the outdoor unit is in the defrost mode, the control module causes the display of the humidity conditioning system to display information indicating that the outdoor unit is in the defrost mode;

[0120] Operation 405: When the outdoor unit ends the defrost mode, the control module opens the first valve, and controls the air supply module to introduce outdoor air into the room according to the temperature of the heat exchange unit.

[0121] In operation 405, when the temperature of the heat exchange unit is less than or equal to the predetermined temperature, the control module controls the air supply module to stop introducing outdoor air into the room; when the temperature of the heat exchange unit is greater than the predetermined temperature, the control module controls the air supply module to introduce outdoor air into the room.

[0122] like Figure 4 As shown, the control method may also include:

[0123] Operation 406 : The control module controls the humidity adjustment system to operate in a first humidification mode or a second humidification mode.

[0124] The first humidification mode includes:

[0125] The humidity control module adjusts the humidity of the air so that the humidity of the indoor air reaches a preset target humidity.

[0126] The second humidification mode includes a first stage operation and a second stage operation which are operated alternately, wherein:

[0127] The first phase of operation includes:

[0128] In the first time period, the guide assembly is controlled to connect the humidity control module with the outdoor air inlet pipeline, and the air supply volume of the air supply module is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the air supply module;

[0129] The second phase of operation includes:

[0130] In the second time period, the guide component is controlled to connect the humidity control module with the indoor return air duct, and the air supply volume of the return air duct is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the return air duct.

[0131] For detailed description of each operation, please refer to the relevant description of Example 1.

[0132] According to the above embodiment, in the humidity control system, when the outdoor unit is in the defrost mode, the first valve of the heat exchange unit is closed to prevent the refrigerant from flowing into the heat exchange unit, thereby stopping the refrigeration process of the heat exchange unit and preventing the refrigerated cold air from flowing to the humidity control module, thereby reducing the risk of freezing of the humidity control module.

[0133] 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 humidity conditioning system described in Example 2.

[0134] The 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 humidity conditioning system described in Example 2.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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 humidity control system, comprising: An indoor unit, which uses refrigerant to adjust the indoor temperature; An outdoor unit, which is in refrigerant communication with the indoor unit; An air supply module, which is used to introduce air; as well as a humidity control module, which, when connected to the air supply module, is used to adjust the humidity of the air guided by the air supply module, It is characterized in that The humidity control module includes a humidifying unit and a heat exchange unit, and the heat exchange unit is connected to the refrigerant of the outdoor unit. The humidity adjustment system further comprises a control module. When the outdoor unit is in the defrost mode, the control module closes the first valve of the heat exchange unit to prevent the refrigerant from flowing into the heat exchange unit.

2. The system of claim 1, wherein: The first valve is an electronic expansion valve, The first valve is located on a refrigerant pipeline connecting the outdoor unit and the heat exchange unit.

3. The system of claim 1, wherein: When the outdoor unit is in the defrost mode: The control module turns off the air supply module; or When the outdoor temperature is lower than the temperature threshold, the control module turns off the air supply module; or When the outdoor temperature is within a first preset temperature range, the control module enables the air supply module to operate intermittently, and when the outdoor temperature is within a second preset temperature range, the control module turns off the air supply module.

4. The system of claim 1, wherein: The humidifying unit comprises a water tank, The water tank has a water inlet valve for replenishing water to the water tank. When the outdoor unit is in the defrost mode, the control module enables the water inlet valve to be in an open state.

5. The system of claim 1, wherein: When the outdoor unit ends the defrosting mode, The control module opens the first valve, Furthermore, the control module controls whether the air supply module introduces outdoor air into the room according to the temperature of the heat exchange unit.

6. The system of claim 5, wherein: When the temperature of the heat exchange unit is less than or equal to a predetermined temperature, the control module controls the air supply module to stop introducing outdoor air into the room.

7. The system of claim 5, wherein: When the temperature of the heat exchange unit is greater than a predetermined temperature, the control module controls the air supply module to introduce outdoor air into the room.

8. The system of claim 1, wherein: The control module controls the humidity adjustment system to operate in a first humidification mode or a second humidification mode. in, The first humidification mode includes: The humidity control module adjusts the humidity of the air so that the humidity of the air in the room reaches a preset target humidity; The second humidification mode includes a first stage operation and a second stage operation which are operated alternately, wherein: The first phase of operation includes: In the first time period, the guide assembly is controlled to connect the humidity control module with the outdoor air inlet pipeline, and the air supply volume of the air supply module is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the air supply module; The second phase of operation includes: In the second time period, the guide component is controlled to connect the humidity control module with the indoor return air duct, and the air supply volume of the return air duct is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the return air duct.

9. The system of claim 1, wherein: When the outdoor unit is in the defrost mode, the control module enables the display of the humidity conditioning system to display information indicating that the outdoor unit is in the defrost mode.

10. The system of claim 1, wherein: The humidification unit includes at least one of a spray humidification unit, a wet film humidification unit, a rotary humidification unit and a steam humidification unit.

11. A control method for a humidity control system, the humidity control system comprising: An indoor unit, which uses refrigerant to adjust the indoor temperature; An outdoor unit, which is in refrigerant communication with the indoor unit; An air supply module, which is used to introduce air; as well as a humidity control module, which, when connected to the air supply module, is used to adjust the humidity of the air guided by the air supply module, It is characterized in that The humidity control module includes a humidifying unit and a heat exchange unit, and the heat exchange unit is connected to the refrigerant of the outdoor unit. The humidity adjustment system further comprises a control module. The control method comprises: When the outdoor unit is in the defrost mode, the control module closes the first valve of the heat exchange unit to prevent the refrigerant from flowing into the heat exchange unit.

12. The control method according to claim 11, wherein: The first valve is an electronic expansion valve, The first valve is located on a refrigerant pipeline connecting the outdoor unit and the heat exchange unit.

13. The control method according to claim 11, wherein: The control method further comprises: When the outdoor unit is in the defrost mode: The control module turns off the air supply module; or When the outdoor temperature is lower than the temperature threshold, the control module turns off the air supply module; or When the outdoor temperature is within a first preset temperature range, the control module enables the air supply module to operate intermittently, and when the outdoor temperature is within a second preset temperature range, the control module turns off the air supply module.

14. The control method according to claim 11, wherein: The humidifying unit comprises a water tank, The water tank has a water inlet valve for replenishing water to the water tank. The control method further comprises: When the outdoor unit is in the defrost mode, the control module enables the water inlet valve to be in an open state.

15. The control method according to claim 11, wherein: The control method further comprises: When the outdoor unit ends the defrosting mode, The control module opens the first valve, Furthermore, the control module controls whether the air supply module introduces outdoor air into the room according to the temperature of the heat exchange unit.

16. The control method according to claim 15, wherein: When the temperature of the heat exchange unit is less than or equal to a predetermined temperature, the control module controls the air supply module to stop introducing outdoor air into the room.

17. The control method according to claim 15, wherein: When the temperature of the heat exchange unit is greater than a predetermined temperature, the control module controls the air supply module to introduce outdoor air into the room.

18. The control method according to claim 15, wherein: The control method further comprises: The control module controls the humidity adjustment system to operate in a first humidification mode or a second humidification mode. in, The first humidification mode includes: The humidity control module adjusts the humidity of the air so that the humidity of the air in the room reaches a preset target humidity; The second humidification mode includes a first stage operation and a second stage operation which are operated alternately, wherein: The first phase of operation includes: In the first time period, the guide assembly is controlled to connect the humidity control module with the outdoor air inlet pipeline, and the air supply volume of the air supply module is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the air supply module; The second phase of operation includes: In the second time period, the guide component is controlled to connect the humidity control module with the indoor return air duct, and the air supply volume of the return air duct is set to a maximum value, so that the humidity control module adjusts the humidity of the air guided by the return air duct.

19. The control method according to claim 11, wherein: The control method further comprises: When the outdoor unit is in the defrost mode, the control module enables the display of the humidity conditioning system to display information indicating that the outdoor unit is in the defrost mode.

20. The control method according to claim 11, wherein: The humidification unit includes at least one of a spray humidification unit, a wet film humidification unit, a rotary humidification unit and a steam humidification unit.

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