Air conditioning and humidifying device

Abstract

The application discloses an air conditioning and humidifying device, which comprises an outer shell body, an outdoor air inlet, an outdoor air outlet, an indoor air outlet and an indoor air return are formed on the outer shell body, a first heat exchange cavity and a second heat exchange cavity are formed in the outer shell body, a heat exchanger is arranged in the first heat exchange cavity and the second heat exchange cavity respectively, a switching device is connected with a fresh air channel, an air outlet channel, the first heat exchange cavity and the second heat exchange cavity respectively, a suction member is arranged in the first heat exchange cavity and the second heat exchange cavity respectively, a compressor is connected with the heat exchanger through a four-way valve to form a refrigerant circulation flow path, and a control module is used for controlling the switching device to switch the communication state of the first heat exchange cavity and the second heat exchange cavity with the fresh air channel and the air outlet channel respectively and / or controlling the refrigerant flow direction, so that the heat exchange mode of the heat exchanger is matched with the humidity adjusting mode. The air conditioning and humidifying device has few required devices, reduces the volume of the device and saves the occupied space. The dehumidifying or humidifying function can be continuously and efficiently performed.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more particularly to an air humidity control device. Background Technology

[0002] As people's living standards improve, they are paying more and more attention to the quality of their indoor environment and need to regulate the air. Air conditioning includes temperature and humidity control, and air quality and comfort are increasingly valued by every household and various commercial and office spaces.

[0003] Currently, humidification solutions in the industry include evaporative humidification and steam humidification, which generally require a separate humidification module connected to the fresh air unit and supplied with water. These modules require interconnection via piping, resulting in a complex structure and large space requirements.

[0004] In some fresh air humidification devices, during the summer when outdoor air humidity is high, the moisture carried by the outdoor fresh air must first be absorbed by the adsorption material, and then carried away by the indoor exhaust air, thus preventing the moisture carried by the outdoor fresh air from entering the room. Alternatively, during winter humidification, moisture in the indoor exhaust air is absorbed by the adsorption material, and the switching of the heat exchange chambers connected to the fresh air and exhaust air ducts is controlled, while simultaneously controlling the refrigerant reversal, to humidify the fresh air entering the room. This type of fresh air device integrates a heat exchange system and an air duct reversing device, resulting in a large device size and space occupation. Summary of the Invention

[0005] To address the technical problems of complex structure and large space occupation of existing air conditioning devices, this invention provides an air conditioning device that can solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air conditioning device, comprising:

[0008] An outer shell has an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet, and an indoor return air outlet formed thereon. A first heat exchange chamber and a second heat exchange chamber are formed inside the outer shell.

[0009] The heat exchanger has at least two components, which are respectively disposed in the first heat exchange chamber and the second heat exchange chamber;

[0010] The reversing device has at least two, and the reversing device is respectively connected to the fresh air duct, the exhaust air duct, the first heat exchange chamber and the second heat exchange chamber;

[0011] Adsorption elements are respectively provided in the first heat exchange cavity and the second heat exchange cavity;

[0012] The compressor is connected to the heat exchanger via a four-way valve to form a refrigerant circulation path.

[0013] The control module is electrically connected to the reversing device and the four-way valve, respectively, and is used to control the reversing device to switch the connection status of the first heat exchange chamber and the second heat exchange chamber with the fresh air channel and the exhaust air channel, respectively.

[0014] The two ends of the fresh air duct are connected to the outdoor air inlet and the indoor air supply outlet, respectively, and the two ends of the exhaust duct are connected to the indoor return air outlet and the outdoor exhaust air outlet, respectively.

[0015] In some embodiments of the present invention, a valve chamber is formed inside the reversing device, and the reversing device has four connection ports respectively communicating with the valve chamber. The reversing device includes:

[0016] A baffle is disposed within the valve cavity;

[0017] The driving device, which is controlled by the control module, drives the partition to move and connects the four connection ports in pairs.

[0018] In some embodiments of the present invention, the reversing device further includes a front stop, a rear stop, and a closed enclosure connected between the front stop and the rear stop. The enclosure has two connection ports, namely a first connection port and a fourth connection port. The front stop or the rear stop has two connection ports, namely a second connection port and a third connection port. The driving device drives the partition to operate, for connecting the first connection port and the second connection port and the third connection port and the fourth connection port, or connecting the first connection port and the third connection port and the second connection port and the fourth connection port.

[0019] In some embodiments of the present invention, the air conditioning device includes two reversing devices, namely a first reversing device and a second reversing device, wherein:

[0020] The four connection ports of the first reversing device are respectively connected to the outdoor exhaust vent, the indoor air supply vent, the first heat exchange chamber and the second heat exchange chamber;

[0021] The four connection ports of the second reversing device are respectively connected to the outdoor air inlet, the indoor air return inlet, the first heat exchange chamber, and the second heat exchange chamber.

[0022] In some embodiments of the present invention, the driving device drives the partition to move on the inner surface of the front or rear partition.

[0023] In some embodiments of the present invention, the partition includes a baffle frame, the two ends of which extend toward the front baffle and the rear baffle respectively, dividing the valve cavity into two independent spaces located inside and outside the baffle frame respectively. The baffle frame has a communication port on the side facing the first connection port or the second connection port. The driving device drives the baffle frame to move between the second connection port and the third connection port, so that in different states, only one of the second connection port and the third connection port is located inside the baffle frame, and the communication port is always connected to the first connection port or the second connection port.

[0024] In some embodiments of the present invention, the driving device includes a motor, the output shaft of the motor is fixed with a gear, and a rack that meshes with the gear is fixed on the retaining frame, the extending direction of the rack being parallel to the line connecting the second connection port and the third connection port.

[0025] In some embodiments of the present invention, the motor is fixed to the front or rear baffle.

[0026] In some embodiments of the present invention, the adsorption element is an adsorption filter screen fixed on the heat exchanger, or an adsorption material layer coated on the surface of the heat exchanger.

[0027] In some embodiments of the present invention, the air conditioning device further includes an indoor humidity sensor for detecting indoor humidity and an outdoor humidity sensor for detecting outdoor humidity, wherein the indoor humidity sensor and the outdoor humidity sensor are respectively connected to the control module.

[0028] The technical solution of the present invention has the following technical effects compared with the prior art:

[0029] First, by setting up a reversing device, the air ducts connecting the first and second heat exchange chambers can be switched in a controlled manner. Furthermore, the flow direction of the refrigerant can be controlled by a four-way valve, ensuring that the heat exchanger's heat exchange mode matches the humidity control mode. Specifically, when the humidity control mode is dehumidification, the reversing device connects the fresh air duct to the heat exchange chamber containing the evaporator, and the exhaust duct to the heat exchange chamber containing the condenser. The fresh air duct supplies fresh air to the room. When the fresh air introduced from outdoors passes through the evaporator, the moisture in the fresh air is heated by the refrigerant in the evaporator, condenses into water, and is absorbed by the adsorbent in the heat exchange chamber, achieving dehumidification. When the humidity control mode is humidification, the reversing device connects the fresh air duct to the heat exchange chamber containing the condenser, and the exhaust duct to the heat exchange chamber containing the evaporator. When the fresh air introduced from outdoors passes through the condenser, the condenser heats the adsorbent nearby, causing the moisture in the adsorbent to evaporate and be released into the incoming fresh air, achieving indoor humidification. This solution humidifies by adsorbing the condensed moisture in the exhaust air through the adsorption element, eliminating the need for a separate water supply module.

[0030] Secondly, this device requires fewer components, reducing its size and saving space.

[0031] Furthermore, when the dehumidification or humidification capacity decreases, by simultaneously controlling the air duct reversal and refrigerant reversal, the heat exchange chamber connected to the fresh air duct is replaced while maintaining the current humidity regulation mode. Therefore, the adsorption components that the fresh air passes through are replaced, thus enabling continuous and efficient execution of dehumidification or humidification functions. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of an embodiment of the air humidity control device proposed in this invention;

[0034] Figure 2 This is a schematic diagram of the refrigerant circulation system of an embodiment of the air conditioning device proposed in this invention;

[0035] Figure 3 This is a schematic diagram of the reversing device in one embodiment of the air humidity control device proposed in this invention;

[0036] Figure 4 yes Figure 3 A schematic diagram of the rear structure;

[0037] Figure 5 This is a schematic diagram of the internal structure of the reversing device in state 1 of one embodiment of the air conditioning device proposed in this invention;

[0038] Figure 6 This is a schematic diagram of the internal structure of the reversing device in state 2 of one embodiment of the air conditioning device proposed in this invention;

[0039] Figure 7 This is a schematic diagram of the airflow channel in state 1 of the fresh air dehumidification mode of the air conditioning and dehumidification device proposed in this invention.

[0040] Figure 8 This is a schematic diagram of the airflow channel in state 2 of the fresh air dehumidification mode of the air conditioning and dehumidification device proposed in this invention.

[0041] Figure 9 This is a schematic diagram of the airflow channel in state 1 of the fresh air humidification mode of the air conditioning device proposed in this invention;

[0042] Figure 10 This is a schematic diagram of the airflow channel in state 2 of the fresh air humidification mode of the air conditioning device proposed in this invention. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] Example 1

[0048] This application proposes an air humidity control device, such as... Figure 1 As shown, the air conditioning device includes an outer shell 10, on which an outdoor air inlet OA, an outdoor air outlet EA, an indoor air supply outlet SA, and an indoor return air outlet RA are formed. A first heat exchange chamber 11 and a second heat exchange chamber 12 are formed inside the outer shell 10.

[0049] The refrigerant circulation system of the air conditioning device includes at least two heat exchangers, which are respectively installed in the first heat exchange chamber 11 and the second heat exchange chamber 12.

[0050] The air conditioning device also includes at least two reversing devices, which are connected to the fresh air duct, the exhaust air duct, the first heat exchange chamber, and the second heat exchange chamber, respectively.

[0051] In some embodiments of the present invention, the reversing device has four connection ports, two of which are connected to the first heat exchange chamber 11 and the second heat exchange chamber 12, respectively. The other two connection ports are connected to the fresh air duct and the exhaust air duct, respectively. The reversing device can switch the connection state between its four connection ports, so that each of the four connection ports can be connected in pairs to match the current humidity control mode.

[0052] In some embodiments of the present invention, two heat exchangers are used as an example, namely a first heat exchanger 13 and a second heat exchanger 14. The first heat exchanger 13 is disposed in a first heat exchange chamber 11, and the second heat exchanger 14 is disposed in a second heat exchange chamber 12.

[0053] like Figure 2The diagram shows the piping connection of the refrigerant circulation system. The first heat exchanger 13 and the second heat exchanger 14 are connected to the compressor 40, the four-way valve 50 and the electronic expansion valve 60 in sequence through refrigerant pipes, forming a closed refrigerant circulation path to realize the delivery of refrigerant.

[0054] The control module is electrically connected to both the reversing device and the four-way valve 50. The control module can control the connection status between the reversing device's ports, thereby controlling the airflow direction in the duct. Furthermore, the control module can also control the refrigerant flow direction by controlling the energization and de-energization status of the four-way valve 50.

[0055] By controlling the flow of the refrigerant, the first heat exchanger 13 can be used as an evaporator and the second heat exchanger 14 can be used as a condenser, or the first heat exchanger 13 can be used as a condenser and the second heat exchanger 14 can be used as an evaporator.

[0056] The air conditioning device also includes an exhaust fan 70 and a supply fan 80. The exhaust fan 70 is used to exhaust air to the outside through the outdoor exhaust vent EA, and the supply fan 80 is used to supply air to the inside through the indoor supply vent SA.

[0057] The control module can switch the connection status of the four connection ports by controlling the reversing device, thereby controlling the connection status of the first heat exchange chamber and the second heat exchange chamber with the fresh air channel and the exhaust air channel respectively, and / or, the control module can control the refrigerant flow direction to match the heat exchange mode of each heat exchanger with the humidity adjustment mode.

[0058] In some embodiments of the present invention, the two ends of the fresh air duct are connected to the outdoor air inlet OA and the indoor air supply outlet SA, respectively, and the two ends of the exhaust air duct are connected to the indoor return air outlet RA and the outdoor exhaust air outlet EA, respectively.

[0059] The humidity control modes include at least dehumidification and humidification modes. The principle of this air conditioning device is as follows: the control module determines the current humidity control mode to be executed, controls the refrigerant circulation system, and / or controls the reversing device to achieve the following:

[0060] When the humidity control mode is dehumidification mode, the control device connects the fresh air duct to the heat exchange chamber where the evaporator is located, and the exhaust duct is connected to the heat exchange chamber where the condenser is located. The fresh air duct is used to supply fresh air to the room. When the fresh air introduced from the outside passes through the fresh air duct and passes through the evaporator, the moisture in the fresh air is heated by the refrigerant in the evaporator and condenses into water, which is then absorbed by the adsorption element in the heat exchange chamber, thus achieving the purpose of dehumidification.

[0061] When the humidity control mode is set to humidification mode, the control device connects the fresh air duct to the heat exchange chamber where the condenser is located, and the exhaust duct to the heat exchange chamber where the evaporator is located. Fresh air introduced from outdoors passes through the fresh air duct and, as it passes the condenser, the condenser heats the adsorption element near it. The moisture in the adsorption element is evaporated and released into the incoming fresh air, thus achieving indoor humidification.

[0062] When the humidification device is initially running, the control module can control the reversing device and / or the refrigerant circulation system to meet the above requirements according to the initial mode. Since the adsorbent has a limited capacity to absorb moisture, its ability to humidify the air is correspondingly limited. Whether the dehumidification or humidification capacity of the adsorbent passing through the fresh air duct decreases, it is necessary to control the reversing device and the four-way valve to switch directions.

[0063] In some embodiments of the present invention, the heat exchange chambers connected to the fresh air duct and the condenser can be exchanged by controlling the reversing device, thereby realizing the exchange of adsorption elements passed through the fresh air duct and the exhaust air duct, and simultaneously controlling the refrigerant reversing, so that the air conditioning device can continuously maintain efficient dehumidification or humidification capabilities.

[0064] In some embodiments of the present invention, the air conditioning device includes two reversing devices, namely a first reversing device 20 and a second reversing device 30.

[0065] In some embodiments of the present invention, the four connection ports of the first reversing device 20 are respectively connected to the outdoor exhaust vent EA, the indoor air supply vent SA, the first heat exchange chamber 11 and the second heat exchange chamber 12.

[0066] The four connection ports of the second reversing device 30 are respectively connected to the outdoor air inlet OA, the indoor return air inlet RA, the first heat exchange chamber 11 and the second heat exchange chamber 12.

[0067] The control module controls the switching of the connection ports of the first reversing device 20 and the second reversing device 30, so that the fresh air duct is connected to one of the first heat exchange chamber 11 and the second heat exchange chamber 12, and the exhaust air duct is connected to the other of the first heat exchange chamber 11 and the second heat exchange chamber 12. The fresh air duct is equipped with a fresh air fan for drawing outdoor air into the room, and the exhaust air duct is equipped with an exhaust fan for expelling indoor air to the outside.

[0068] The refrigerant circulation system can switch between the cooling and heating functions of the two heat exchange chambers by changing the direction of refrigerant flow. At the same time, it can control the connection status between their respective connection ports with the first and second reversing devices, so as to switch the heat exchange chambers connected by the fresh air duct and the exhaust air duct, while keeping the air conditioning operation mode unchanged. It is especially suitable for fresh air devices that need to switch between the fresh air duct and the exhaust air duct in order to achieve dehumidification or humidification functions.

[0069] The reversing device has a valve chamber that communicates with each connection port. The reversing device also includes a baffle and a drive device. The baffle is disposed in the valve chamber. The drive device is controlled by the control module to drive the baffle to move, so as to connect the fresh air duct to one of the first heat exchange chamber and the second heat exchange chamber, and the exhaust air duct to the other of the first heat exchange chamber and the second heat exchange chamber.

[0070] The control module determines the current humidity control mode to be executed, controls the operation of the refrigerant circulation system and / or controls the reversing device to achieve the following:

[0071] When the humidity adjustment mode is dehumidification mode, the control baffle connects the connection port to the fresh air duct (i.e., the outdoor air inlet OA and the indoor air outlet SA) and the connection port to the heat exchange chamber where the evaporator is located, and connects the connection port to the exhaust air duct (i.e., the indoor return air outlet RA and the outdoor exhaust air outlet EA) and the connection port to the heat exchange chamber where the condenser is located.

[0072] When the humidity adjustment mode is humidification mode, the control unit connects the connection port connected to the fresh air duct and the connection port connected to the heat exchange chamber where the condenser is located, and connects the connection port connected to the exhaust duct and the connection port connected to the heat exchange chamber where the evaporator is located.

[0073] The control module also includes a step of determining the dehumidification capacity (in dehumidification mode) or humidification capacity (in humidification mode) of the adsorbent in the heat exchange chamber connected to the fresh air duct, and when the dehumidification capacity or humidification capacity is reduced to a set limit, controlling the reversing device to replace the heat exchange chamber connected to the fresh air duct, and controlling the refrigerant flow direction to reverse.

[0074] In some embodiments of the present invention, the step of the control module determining the dehumidification or humidification capacity of the adsorption element in the heat exchange chamber connected to the fresh air duct includes:

[0075] Obtain the humidity value of the adsorption components in the heat exchange chamber connected to the fresh air duct;

[0076] In dehumidification mode, if the humidity value is greater than the first set value, it is determined that the dehumidification capacity has been reduced to the set limit.

[0077] In humidification mode, if the humidity value is lower than the second set value, it is determined that the humidification capacity has decreased to the set limit.

[0078] By directly obtaining the humidity value of the adsorption element, the heat exchange chamber connected to the fresh air duct can be controlled and switched, resulting in higher control precision.

[0079] Of course, the control methods are not limited to those described above. In some embodiments of the present invention, the step of the control module determining the dehumidification or humidification capacity of the adsorbent in the heat exchange chamber connected to the fresh air duct includes:

[0080] In dehumidification mode, the time T required for the adsorbent in the heat exchange chamber connected to the fresh air duct to become saturated;

[0081] The runtime of the current operating state is timed, and when the runtime is not less than T, it is determined that the dehumidification capacity has decreased to the set limit.

[0082] Control switching is performed based on cumulative runtime, resulting in simpler control logic and faster response speed.

[0083] In humidification mode, the humidity level at the indoor air vent is measured.

[0084] Calculate the change in moisture content d between two adjacent time points. i+1 -d i ;

[0085] When d i+1 -d i When the value is ≤D, it is determined that the humidification capacity has decreased to the set limit. D is a custom value, and the time interval between two adjacent moments can be customized.

[0086] The control center judges the change in moisture content between two adjacent time points (e.g., per minute). If the condition d is met... i+1 -d i ≤D indicates that the humidity content of the supplied air is decreasing and approaching stability. This also means that the moisture in the adsorbent material on the condenser surface in the fresh air duct is about to be completely released. At this point, the control module sends a reversing command to the four-way valve. The four-way valve completes the reversing, and the states of the first heat exchanger 13 and the second heat exchanger 14 change (evaporator becomes condenser, condenser becomes evaporator). Simultaneously, the positions of the air valves of the first reversing device 20 and the second reversing device 30 change, thus completing one humidification channel change, thereby achieving uninterrupted humidification in winter.

[0087] In some embodiments of the present invention, during dehumidification mode, the method for obtaining the time T required for the adsorbent in the heat exchange chamber connected to the fresh air duct to become saturated is as follows: the time required for the adsorbent material on the evaporator side to become saturated is calculated based on the dehumidification rate, and then the four-way valve and switching device are controlled according to this time. The dehumidification rate, i.e., the weight of water adsorbed per second (Wa), is calculated based on the indoor and outdoor humidity levels.

[0088] Specifically, this includes: obtaining the weight Wa of the water that the adsorbent can hold;

[0089] Calculate the dehumidification rate Wi:

[0090] Wi=G×(dw-dn) / 3600g / s;

[0091] Calculate T:

[0092]

[0093] Where G is the fresh air volume delivered by the air conditioning device; dw is the humidity content of the outdoor air; and dn is the humidity content of the indoor air.

[0094] In some embodiments of the present invention, the reversing device further includes a front stop, a rear stop, and a closed enclosure connected between the front stop and the rear stop. Two connection ports are provided on the enclosure, namely a first connection port and a fourth connection port, and two other connection ports are provided on the front stop or the rear stop, namely a second connection port and a third connection port. The driving device drives the partition to operate, for connecting the first connection port with the second connection port and the third connection port with the fourth connection port, or connecting the first connection port with the third connection port and the second connection port with the fourth connection port.

[0095] The drive unit can drive the partition 211 to move along a straight line or a curve.

[0096] like Figures 3-6 As shown, this embodiment uses the first commutation device 20 as an example for explanation.

[0097] The first reversing device 20 includes a valve chamber 210, with four connection ports respectively connected to the valve chamber 210. The first reversing device 20 also includes a baffle 211 and a drive device 212, with the drive device 212 disposed within the valve chamber 210. The drive device 212 is controlled by the control module to actuate the baffle 211, thereby connecting the fresh air duct to one of the first heat exchange chamber 11 and the second heat exchange chamber 12, and the exhaust air duct to the other of the first heat exchange chamber 11 and the second heat exchange chamber 12.

[0098] The first reversing device 20 includes a front stop 205, a rear stop 206, and a closed enclosure 207 connected between the front stop 205 and the rear stop 206. Two connection ports are opened on the enclosure 207, namely a first connection port 201 and a fourth connection port 204. The other two connection ports are opened on either the front stop 205 or the rear stop 206, namely a second connection port 202 and a third connection port 203. The driving device 208 drives the partition to connect the first connection port 201 and the second connection port 202 and the third connection port 203 and the fourth connection port 204, or connect the first connection port 201 and the third connection port 203 and the second connection port 202 and the fourth connection port 204.

[0099] In some embodiments of the present invention, the first connection port 201 of the first reversing device is connected to the indoor air supply port SA, the fourth connection port 204 of the first reversing device is connected to the outdoor air exhaust port EA, the third connection port 203 of the first reversing device is connected to the first heat exchange chamber 11, and the second connection port 202 of the first reversing device is connected to the second heat exchange chamber 12.

[0100] The structure of the second commutator 30 is the same as that of the first commutator 20, and will not be described in detail here. The connection method of the second commutator 30 will be explained in detail below.

[0101] The first connection port 301 of the second reversing device is connected to the outdoor air inlet OA, the fourth connection port 304 of the second reversing device is connected to the indoor return air inlet RA, the third connection port 303 of the second reversing device is connected to the first heat exchange chamber 11, and the second connection port 302 of the second reversing device is connected to the second heat exchange chamber 12.

[0102] like Figure 5 As shown, when the partition of the first reversing device connects the first connection port 201 to the second connection port 202 and the third connection port 203 to the fourth connection port 204, the first connection port 301 of the second reversing device connects to the second connection port 302, and the third connection port 303 of the second reversing device connects to the fourth connection port 304. Therefore, the outdoor air inlet OA is sequentially connected to the indoor air outlet SA through the first connection port 301 of the second reversing device, the second connection port 302 of the second reversing device, the second heat exchange chamber 12, the second connection port 202 of the first reversing device, and the first connection port 201 of the first reversing device, forming a fresh air duct.

[0103] Meanwhile, the indoor return air vent RA is connected to the outdoor exhaust air vent EA in sequence through the fourth connection port 304 of the second reversing device, the third connection port 303 of the second reversing device, the first heat exchange chamber 11, the third connection port 203 of the first reversing device, and the fourth connection port 204 of the first reversing device, forming an exhaust air channel.

[0104] like Figure 6 As shown, when the partition of the first reversing device 20 connects its first connection port 201 to the third connection port 203 and its second connection port 202 to the fourth connection port 204, the partition of the second reversing device 30 connects its first connection port 301 to the third connection port 303 and its second connection port 302 to the fourth connection port 304. Therefore, the outdoor air inlet OA is sequentially connected to the indoor air outlet SA through the first connection port 301 of the second reversing device, the third connection port 303 of the second reversing device, the first heat exchange chamber 11, the third connection port 203 of the first reversing device, and the first connection port 201 of the first reversing device, forming a fresh air duct.

[0105] Meanwhile, the indoor return air vent RA is connected to the outdoor exhaust air vent EA in sequence through the fourth connection port 304 of the second reversing device, the second connection port 302 of the second reversing device, the second heat exchange chamber 12, the second connection port 202 of the first reversing device, and the fourth connection port 204 of the first reversing device, forming an exhaust air channel.

[0106] Taking the first commutator 20 as an example, such as Figure 6 As shown, the partition 211 includes a baffle frame 2111, with both ends of the baffle frame 2111 extending toward the front baffle 205 and the rear baffle 206 respectively, dividing the valve chamber 210 into two independent spaces located inside and outside the baffle frame respectively. A connecting port 2112 is provided on the side of the baffle frame 2111 facing the first connection port 201 or the fourth connection port 204. In this embodiment, the connecting port 2112 facing the first connection port 201 is used as an example. The driving device moves the baffle frame 2111 between the second connection port 202 and the third connection port 203, so that in different humidity adjustment modes, only one of the second connection port 202 and the third connection port 203 is located inside the baffle frame 2111, and the connecting port 2112 is always connected to the first connection port 201 or the fourth connection port 204.

[0107] like Figure 5 As shown, when the second connection port 202 is located inside the baffle 2111, the third connection port 203 is located outside the baffle 2111. The second connection port 202 is connected to the first connection port 201, and the third connection port 203 is connected to the fourth connection port 204.

[0108] like Figure 6 As shown, when the third connection port 203 is located inside the baffle 2111, the second connection port 202 is located outside the baffle 2111. The third connection port 203 communicates with the first connection port 201, and the second connection port 202 communicates with the fourth connection port 204.

[0109] In some embodiments of the present invention, the drive device 212 may be implemented using a motor, such as... Figure 6 As shown, a gear 2113 is fixed to the output shaft of the motor, and a rack 2114 that meshes with the gear is fixed to the retaining frame 2111. The extending direction of the rack 2114 is parallel to the line connecting the second connection port 202 and the third connection port 203. The motor drives the gear 2113 to rotate, and the gear 2113 drives the rack 2114 to move along its length, thereby causing the retaining frame 2111 to move between the second connection port 202 and the third connection port 203.

[0110] In some embodiments of the present invention, the motor is fixed on the front stop 205 or the rear stop 206, and the motor drives the partition 2111 to move on the inner surface of the front stop 205 or the rear stop 206.

[0111] There is a partition structure between the first heat exchange chamber 11 and the second heat exchange chamber 12. The installation direction of the partition structure can be horizontal, so the first heat exchanger 13 and the second heat exchanger 14 are arranged vertically.

[0112] Of course, the installation direction of the partition structure is not limited to horizontal setting. It can be set vertically in the heat exchange cavity or set at an angle in the heat exchange cavity. The first heat exchanger 13 and the second heat exchanger 14 are located on both sides of the partition structure.

[0113] The above is a structural description of the first commutator 20. The structure of the second commutator 30 is similar to that of the first commutator 20, and will not be described in detail here.

[0114] Generally, when the fresh air unit is powered on, during operation, or when the user manually controls the switching or the system automatically determines that a reversal is required, the first reversing device and / or the second reversing device are controlled.

[0115] In this embodiment, the reversing of the first and second reversing devices is achieved by changing the position of the baffle 2111 to connect their different connection ports, thereby realizing the reversing. Therefore, in this embodiment, the control method of the control module to control the first and / or second reversing devices is as follows:

[0116] Determine the operating mode and the current position of the baffle 2111, and determine the matching status between the current position of the baffle 2111 and the air humidity adjustment mode;

[0117] When the matching status is mismatched, control the reversing device to reverse;

[0118] The commutation device includes a first commutation device and / or a second commutation device.

[0119] During commutation, depending on the system's operating mode, one of the first and second commutation devices can be controlled to commutate independently, or the first and second commutation devices can be controlled to commutate simultaneously.

[0120] Both the first heat exchange chamber 11 and the second heat exchange chamber 12 are equipped with adsorption elements for adsorbing or releasing moisture.

[0121] The adsorption elements are placed inside the heat exchanger or coated on the surface of the heat exchanger in the form of granules wrapped in blocks, sheets, or mesh.

[0122] Air humidity control modes should include at least dehumidification mode and humidification mode.

[0123] <Dehumidification Mode>

[0124] In dehumidification mode, the fresh air duct is connected to the heat exchange chamber containing the evaporator, and the exhaust air duct is connected to the heat exchange chamber containing the condenser. That is, the connection method of the fresh air duct in this mode is the same as in cooling mode. In this embodiment, [the following is an example / example]... Figure 7 The third connection port 203 of the first reversing device shown is connected to the first heat exchange chamber 11 where the first heat exchanger 13 is located, and the second connection port 202 of the first reversing device is connected to the second heat exchange chamber 12 where the second heat exchanger 14 is located. The first heat exchanger 13 is used as an evaporator and the second heat exchanger 14 is used as a condenser for the following explanation.

[0125] At this time, the first reversing device 20 is controlled to connect its first connection port 201 to its third connection port 203, and its second connection port 202 to its fourth connection port 204. The third reversing device is controlled to connect its first connection port 301 to its third connection port 303, and its second connection port 302 to its fourth connection port 304.

[0126] The fresh air duct consists of: outdoor air inlet OA - first connection port 301 of the second reversing device - third connection port 303 of the second reversing device - first heat exchange chamber 11 (the internal heat exchanger is an evaporator) - third connection port 203 of the first reversing device - first connection port 201 of the first reversing device - indoor air outlet SA.

[0127] The refrigerant in the first heat exchanger 13 (evaporator) absorbs heat from the air. When the air in the fresh air duct flows through the evaporator, the moisture in the air condenses into water droplets, which are absorbed by the adsorption element of the evaporator. The outdoor air is dried and then delivered to the room through the indoor air outlet SA.

[0128] The exhaust duct consists of: indoor return air vent RA - fourth connection port 304 of the second reversing device - second connection port 302 of the second reversing device - second heat exchange chamber 12 (the internal heat exchanger is a condenser) - second connection port 202 of the first reversing device - fourth connection port 204 of the first reversing device - outdoor exhaust vent EA.

[0129] The refrigerant in the second heat exchanger 14 (condenser) releases heat into the surrounding air. When the air in the exhaust duct flows through the condenser, the moisture in the condenser's adsorbent is evaporated, released into the air, and carried out to the outside by the airflow in the direction of exhaust to the outside.

[0130] When the adsorbent near the first heat exchanger 13 (evaporator) reaches saturation, the adsorbent near the second heat exchanger 14 (condenser) is simultaneously dried. Figure 10As shown, by controlling the reversing device, the fresh air duct passes through the second heat exchange chamber 12, and the exhaust air duct passes through the first heat exchanger chamber 11. At the same time, the refrigerant is reversed, so that the second heat exchanger 14 becomes an evaporator and the first heat exchanger 13 becomes a condenser. The outdoor air entering continues to be dehumidified and dried by the adsorption element near the second heat exchanger 14 before being delivered indoors.

[0131] like Figure 8 As shown, the fresh air duct after the reversal is as follows:

[0132] Outdoor air inlet OA - First connection port 301 of the second reversing device - Second connection port 302 of the second reversing device - Second heat exchange chamber 12 (internal heat exchanger is an evaporator) - Second connection port 202 of the first reversing device - First connection port 201 of the first reversing device - Indoor air outlet SA.

[0133] The exhaust duct after the reversal is as follows:

[0134] Indoor return air vent RA - Fourth connection port 304 of the second reversing device - Third connection port 303 of the second reversing device - First heat exchange chamber 11 (internal heat exchanger is a condenser) - Third connection port 203 of the first reversing device - Fourth connection port 204 of the first reversing device - Outdoor exhaust vent EA.

[0135] Humidification Mode

[0136] In humidification mode, the fresh air duct is connected to the heat exchange chamber where the condenser is located, and the exhaust air duct is connected to the heat exchange chamber where the evaporator is located. That is, the connection method of the fresh air duct in this mode is the same as in heating mode. In this embodiment, the first heat exchanger 13 is still used as the evaporator, and the second heat exchanger 14 is used as the condenser as an example. Figure 9 As shown, the control connects the first connection port 301 of the second reversing device to its second connection port 302, and connects the third connection port 303 of the second reversing device to its fourth connection port 304. The third connection port 303 of the second reversing device is connected to the first heat exchange chamber 11 where the first heat exchanger 13 is located, and the second connection port 302 of the second reversing device is connected to the second heat exchange chamber 12 where the second heat exchanger 14 is located.

[0137] The first connection port 201 of the first reversing device is connected to its second connection port 202, and the third connection port 203 of the first reversing device is connected to its fourth connection port 204. The third connection port 203 of the first reversing device is connected to the first heat exchange chamber 11 where the first heat exchanger 13 is located, and the second connection port 202 of the first reversing device is connected to the second heat exchange chamber 12 where the second heat exchanger 14 is located.

[0138] The resulting fresh air duct is as follows:

[0139] Outdoor air inlet OA - First connection port 301 of the second reversing device - Second connection port 302 of the second reversing device - Second heat exchange chamber 12 (internal heat exchanger is a condenser) - Second connection port 202 of the first reversing device - First connection port 201 of the first reversing device - Indoor air outlet SA.

[0140] The refrigerant in the second heat exchanger 14 (condenser) releases heat into the surrounding air. When the fresh air flows through the condenser, the moisture in the condenser's adsorption element is evaporated, released into the air, and transported to the room with the airflow to humidify the room.

[0141] The exhaust duct is as follows:

[0142] Indoor return air vent RA - Fourth connection port 304 of the second reversing device - Third connection port 303 of the second reversing device - First heat exchange chamber 11 (internal heat exchanger is an evaporator) - Third connection port 203 of the first reversing device - Fourth connection port 204 of the first reversing device - Outdoor exhaust air vent EA.

[0143] The refrigerant in the first heat exchanger 13 (evaporator) absorbs heat from the air. When the air in the exhaust duct flows through the evaporator, the moisture in the air condenses into water droplets, which are absorbed by the adsorption element of the evaporator. The airflow entering the room is dried and then discharged to the outside through the outdoor exhaust port EA.

[0144] When the adsorbent near the second heat exchanger 14 (condenser) is dried, it loses its ability to release moisture. At this time, the control reversing device reverses the direction, so that the fresh air channel is connected to the first heat exchange chamber 11. At the same time, the first heat exchanger 13 switches to act as a condenser, and the adsorbent near the first heat exchanger 13 continues to release moisture into the fresh air.

[0145] like Figure 10 As shown, the fresh air duct after the reversal is as follows:

[0146] Outdoor air inlet OA - First connection port 301 of the second reversing device - Third connection port 303 of the second reversing device - First heat exchange chamber 11 (internal heat exchanger is a condenser) - Third connection port 203 of the first reversing device - First connection port 201 of the first reversing device - Indoor air outlet SA.

[0147] The exhaust duct after the reversal is as follows:

[0148] Indoor return air vent RA - Fourth connection port 304 of the second reversing device - Second connection port 302 of the second reversing device - Second heat exchange chamber 12 (internal heat exchanger is an evaporator) - Second connection port 202 of the first reversing device - Fourth connection port 204 of the first reversing device - Outdoor exhaust vent EA.

[0149] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0150] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An air humidity control device, characterized in that, include: An outer shell has an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet, and an indoor return air outlet formed thereon. A first heat exchange chamber and a second heat exchange chamber are formed inside the outer shell. The heat exchanger has at least two components, which are respectively disposed in the first heat exchange chamber and the second heat exchange chamber; The reversing device has at least two, and the reversing device is respectively connected to the fresh air duct, the exhaust air duct, the first heat exchange chamber and the second heat exchange chamber; Adsorption elements are respectively provided in the first heat exchange cavity and the second heat exchange cavity; The compressor is connected to the heat exchanger via a four-way valve to form a refrigerant circulation path. The control module is configured to: control the reversing device to switch the connection status of the first heat exchange chamber and the second heat exchange chamber with the fresh air channel and the exhaust air channel respectively, and / or control the refrigerant flow direction so that the heat exchange mode of the heat exchanger matches the humidity regulation mode. The two ends of the fresh air duct are connected to the outdoor air inlet and the indoor air supply outlet, respectively, and the two ends of the exhaust duct are connected to the indoor return air outlet and the outdoor exhaust outlet, respectively. The reversing device has a valve chamber inside, and the reversing device has four connection ports that are respectively connected to the valve chamber. These four connection ports are respectively connected to the fresh air duct, the exhaust air duct, the first heat exchange chamber and the second heat exchange chamber. The commutation device further includes: A baffle is disposed within the valve cavity; The drive device, which is controlled by the control module, drives the partition to move; The reversing device also includes a front baffle, a rear baffle, and a closed enclosure connected between the front baffle and the rear baffle, wherein two connection ports are opened on the enclosure, namely the first connection port and the fourth connection port, and the other two connection ports are opened on the front baffle or the rear baffle, namely the second connection port and the third connection port. The partition includes a frame with two ends extending toward the front and rear partitions, respectively, dividing the valve chamber into two independent spaces located inside and outside the frame. The frame has a communication port on the side facing the first or second connection port. The driving device moves the frame between the second and third connection ports, so that in different humidity adjustment modes, only one of the second or third connection ports is located inside the frame, and the communication port is always connected to the first or second connection port.

2. The air conditioning and humidification device according to claim 1, characterized in that, The control module determines and identifies the current humidity adjustment mode to be executed, controls the operation of the refrigerant circulation system and / or controls the operation of the reversing device, satisfying the following: When the humidity adjustment mode is dehumidification mode, the control unit connects the connection port connected to the fresh air duct and the connection port connected to the heat exchange chamber where the evaporator is located, and connects the connection port connected to the exhaust duct and the connection port connected to the heat exchange chamber where the condenser is located. When the humidity adjustment mode is humidification mode, the control unit connects the connection port connected to the fresh air duct and the connection port connected to the heat exchange chamber where the condenser is located, and connects the connection port connected to the exhaust duct and the connection port connected to the heat exchange chamber where the evaporator is located.

3. The air conditioning and humidification device according to claim 2, characterized in that, The driving device drives the partition to move along a straight line or a curve.

4. The air conditioning and humidification device according to claim 1, characterized in that, The control module further includes a step of determining the dehumidification or humidification capacity of the adsorbent in the heat exchange chamber connected to the fresh air duct, and when the dehumidification or humidification capacity is reduced to a set limit, controlling the reversing device to replace the heat exchange chamber connected to the fresh air duct, and controlling the refrigerant flow direction to reverse.

5. The air conditioning and humidification device according to claim 4, characterized in that, The steps by which the control module determines the dehumidification or humidification capacity of the adsorption element in the heat exchange chamber connected to the fresh air duct include: Obtain the humidity value of the adsorption element in the heat exchange chamber connected to the fresh air duct; In dehumidification mode, when the humidity value is greater than the first set value, it is determined that the dehumidification capacity has been reduced to the set limit. In humidification mode, if the humidity value is less than the second set value, it is determined that the humidification capacity has decreased to the set limit.

6. The air conditioning and humidification device according to claim 4, characterized in that, The steps by which the control module determines the dehumidification or humidification capacity of the adsorption element in the heat exchange chamber connected to the fresh air duct include: In dehumidification mode, the time T required for the adsorbent in the heat exchange chamber connected to the fresh air duct to become saturated is obtained; The runtime of the current operating state is timed, and when the runtime is not less than T, it is determined that the dehumidification capacity has decreased to a set limit. In humidification mode, the humidity level at the indoor air outlet is measured; Calculate the change in moisture content d between two adjacent time points. i+1 -d i ; When d i+1 -d i When the value is ≤D, it is determined that the humidification capacity has decreased to the set limit. D is a custom value, and the time interval between two adjacent moments can be customized.

7. The air conditioning and humidification device according to claim 6, characterized in that, The method for obtaining time T is as follows: The weight of water that the adsorbent can hold is obtained. ; Calculate the dehumidification rate : ； Calculate T: ； Wherein, G is the volume of fresh air delivered by the air conditioning device; dw represents the humidity level of outdoor air; dn represents the humidity content of indoor air.

8. The air conditioning and humidification device according to any one of claims 2-7, characterized in that, The air conditioning device includes two reversing devices, namely a first reversing device and a second reversing device, wherein: The four connection ports of the first reversing device are respectively connected to the outdoor exhaust vent, the indoor air supply vent, the first heat exchange chamber and the second heat exchange chamber; The four connection ports of the second reversing device are respectively connected to the outdoor air inlet, the indoor air return inlet, the first heat exchange chamber, and the second heat exchange chamber.

9. The air conditioning and humidification device according to claim 8, characterized in that, The first connection port of the first reversing device is connected to the indoor air supply outlet, the fourth connection port of the first reversing device is connected to the outdoor air exhaust outlet, the third connection port of the first reversing device is connected to the first heat exchange chamber, and the second connection port of the first reversing device is connected to the second heat exchange chamber. The first connection port of the second reversing device is connected to the outdoor air inlet, the fourth connection port of the second reversing device is connected to the indoor return air inlet, the third connection port of the second reversing device is connected to the first heat exchange chamber, and the second connection port of the second reversing device is connected to the second heat exchange chamber.

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