WO2023142517A1

WO2023142517A1 - Air humidity control device

Info

Publication number: WO2023142517A1
Application number: PCT/CN2022/123628
Authority: WO
Inventors: 都学敏; 孟建军; 黄信博; 王涛; 李�浩; 陈晓玲; 周敏; 李亚军
Original assignee: 青岛海信日立空调系统有限公司
Priority date: 2022-01-27
Filing date: 2022-09-30
Publication date: 2023-08-03

Abstract

An air humidity control device, comprising a housing, a first heat exchanger, a second heat exchanger, a fresh air channel, an air discharge channel, a first switching member, and a second switching member. The housing comprises a first sub-heat exchange cavity and a second sub-heat exchange cavity, and each of the first sub-heat exchange cavity and the second sub-heat exchange cavity is provided with an adsorption member. The first heat exchanger is located in the first sub-heat exchange cavity, and the second heat exchanger is located in the second sub-heat exchange cavity. One end of the fresh air channel is connected to an outdoor air inlet, and the other end is connected to an indoor air supply port. One end of the air discharge channel is connected to an indoor air return port, and the other end is connected to an outdoor air outlet. The first switching member and the second switching member are both located in the fresh air channel and the air discharge channel, and are configured to enable the fresh air channel to be communicated with one of the first sub-heat exchange cavity and the second sub-heat exchange cavity, and enable the air discharge channel to be communicated with the other one of the first sub-heat exchange cavity and the second sub-heat exchange cavity.

Description

Air humidity control device

This application requires the Chinese patent application with application number 202210102381.9 filed on January 27, 2022, the Chinese patent application with application number 202210099630.3 filed on January 27, 2022, and the Chinese patent application filed on March 31, 2022, The priority of Chinese patent application No. 202210345031.5, the entire content of which is incorporated in this application by reference.

technical field

The present disclosure relates to the technical field of air conditioning, in particular to an air humidity control device.

Background technique

With the improvement of people's living standards, people pay more and more attention to the quality of the indoor environment, so the air needs to be adjusted. Air conditioning includes temperature regulation and humidity regulation. Air quality and comfort are increasingly valued by every family, various commercial places, and office places.

Contents of the invention

Some embodiments of the present disclosure provide an air humidity control device. The air humidity control device includes a shell, a first heat exchanger, a second heat exchanger, a fresh air channel, an exhaust air channel, a first switching element and a second switching element. The housing includes a first sub-heat exchange chamber and a second sub-heat exchange chamber, both of the first sub-heat exchange chamber and the second sub-heat exchange chamber have an adsorption piece configured to absorb or Release moisture. The first heat exchanger is located in the first sub-heat exchange chamber, and the second heat exchanger is located in the second sub-heat exchange chamber; the first heat exchanger and the second sub-heat exchange One of the heat exchangers is an evaporator, and the other of the first heat exchanger and the second heat exchanger is a condenser. One end of the fresh air channel is connected to the outdoor air inlet, and the other end is connected to the indoor air supply port. The outdoor air inlet and the indoor air supply port are located on the housing, and the fresh air channel communicates with the first sub-heat exchange chamber or One of the second sub-heat exchange chambers. One end of the air exhaust channel is connected to the indoor air return port, and the other end is connected to the outdoor air exhaust port. The indoor air return port and the outdoor air exhaust port are located on the housing, and the exhaust air channel communicates with the first sub- The other one of the heat exchange chamber or the second sub-heat exchange chamber. Both the first switching element and the second switching element are located in the fresh air channel and the exhaust air channel, and are configured to make the fresh air channel and the first sub-heat exchange chamber and the second sub-heat exchange chamber One of the cavities communicates, and the exhaust channel communicates with the other of the first sub-heat exchange chamber and the second sub-heat exchange chamber.

Description of drawings

Fig. 1A is a structural diagram of an air humidity control device according to some embodiments;

Fig. 1B is a top sectional view of the air humidity control device shown in Fig. 1A;

Fig. 1C is a front view of the air humidity control device shown in Fig. 1A;

Fig. 2A is a structural diagram of another air humidity control device according to some embodiments;

Fig. 2B is a structural diagram shown in Fig. 2A flipped 90° according to direction A;

Fig. 3A is a structural diagram of a first switching element or a second switching element according to some embodiments;

Fig. 3B is a structural diagram of another angle of the first switching element or the second switching element shown in Fig. 3A;

Fig. 3C is a structural diagram of another angle of the first switching element or the second switching element shown in Fig. 3A;

Fig. 4 is a structural diagram of another first switching element or second switching element according to some embodiments;

Fig. 5A is a diagram of a usage state of the first switching element or the second switching element shown in Fig. 4;

Fig. 5B is another usage state diagram of the first switching element or the second switching element shown in Fig. 4;

Fig. 6A is a structural diagram of yet another first switching element or second switching element according to some embodiments;

Fig. 6B is a structural diagram of another angle of the first switching element or the second switching element shown in Fig. 6A;

Fig. 7A is a diagram of a usage state of the first switching element or the second switching element shown in Fig. 6A;

Fig. 7B is another usage state diagram of the first switching element or the second switching element shown in Fig. 6A;

Fig. 8A is a structural diagram of yet another first switching element or second switching element according to some embodiments;

Fig. 8B is a structural view of another angle of the first switching element or the second switching element shown in Fig. 8A

Fig. 9 is a structural diagram of another first switching element or a second switching element according to some embodiments;

Fig. 10A is a working state diagram of the switching valve in the open state of the first sub-valve shown in Fig. 9;

Fig. 10B is a working state diagram of the switching valve in the open state of the second sub-valve shown in Fig. 9;

Fig. 11 is a structural diagram of a regulating valve according to some embodiments;

Figure 12A is a structural diagram of a barrier according to some embodiments;

Figure 12B is a structural diagram of another barrier according to some embodiments;

Fig. 12C is a structural diagram of yet another barrier according to some embodiments;

Fig. 13 is a structural diagram of another air humidity control device according to some embodiments;

Fig. 14 is a connection diagram of a refrigerant circulation loop of an air humidity control device according to some embodiments;

Fig. 15A is a gas flow diagram of an air humidity control device in a humidification mode according to some embodiments;

Fig. 15B is another gas flow diagram of an air humidity control device in a humidification mode according to some embodiments;

Fig. 16A is a gas flow diagram of another air humidity control device in humidification mode according to some embodiments;

Fig. 16B is another gas flow diagram of another air humidity control device in humidification mode according to some embodiments;

Fig. 17A is a gas flow diagram of an air humidity control device in a dehumidification mode according to some embodiments;

Fig. 17B is another gas flow diagram of an air humidity control device in a dehumidification mode according to some embodiments;

Fig. 18A is a gas flow diagram of another air humidity control device in a dehumidification mode according to some embodiments;

Fig. 18B is another gas flow diagram of another air humidity control device in dehumidification mode according to some embodiments;

Fig. 19 is a flowchart of a control method of an air humidity control device according to some embodiments.

In the attached picture:

1000-air humidity control device;

100-housing; OA-outdoor air inlet; EA-outdoor air exhaust; RA-indoor air return; SA-indoor air supply; 101-first switching chamber; 103-second switching chamber; 102-heat exchange chamber; 1021-the first sub-heat exchange chamber; 1022-the second sub-heat exchange chamber; 110-the first partition; 120-the second partition; 130-the third partition;

300-the first heat exchanger; 400-the second heat exchanger;

210-first switching piece; 220-second switching piece; 201-air inlet pipe; 202-air outlet pipe; 203-first heat exchange pipe; 204-second heat exchange pipe; 205-switching main body; 2050-cover Plate; 2051-first connection port; 2052-second connection port; 2053-third connection port; 2054-fourth connection port; 2055-flow chamber; 2056-first side plate; 2057-second side plate; 2058 -Third side plate; 2059-fourth side plate; 206-switching valve; 2061-rotating shaft; 2062-valve plate; Connecting rod; 2065-second driving device; 207-blocking part; 2081-driving part; 2082-air volume adjustment part; 209-first driving device;

510-compressor; 520-four-way valve; 530-expansion valve; 540-controller;

700-exhaust fan; 800-supply fan;

10-indoor humidity detection device; 20-outdoor temperature detection device; 30-outdoor humidity detection device; 40-air quality detection device; 50-indoor return air temperature detection device; 60-indoor return air humidity detection device; 70-indoor delivery Wind temperature detection device; 80-indoor air supply humidity detection device;

900 - Adsorbent.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments provided in the present disclosure belong to the protection scope of the present disclosure.

Throughout the specification and claims, unless the context requires otherwise, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are used Interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" example)" or "some examples (some examples)" etc. are intended to indicate that specific features, structures, materials or characteristics related to the embodiment or examples are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral body; it can be a direct connection or an indirect connection through an intermediary. The term "coupled" indicates that two or more elements are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited by the context herein.

"At least one of A, B and C" has the same meaning as "at least one of A, B or C" and both include the following combinations of A, B and C: A only, B only, C only, A and B A combination of A and C, a combination of B and C, and a combination of A, B and C.

"A and/or B" includes the following three combinations: A only, B only, and a combination of A and B.

As used herein, the term "if" is optionally interpreted to mean "when" or "at" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined that ..." or "if [the stated condition or event] is detected" are optionally construed to mean "when determining ..." or "in response to determining ..." depending on the context Or "upon detection of [stated condition or event]" or "in response to detection of [stated condition or event]".

The use of "suitable for" or "configured to" herein means open and inclusive language that does not exclude devices that are suitable for or configured to perform additional tasks or steps.

Additionally, the use of "based on" is meant to be open and inclusive, as a process, step, calculation, or other action that is "based on" one or more stated conditions or values may in practice be based on additional conditions or beyond stated values.

As used herein, "about", "approximately" or "approximately" includes the stated value as well as the average within the acceptable deviation range of the specified value, wherein the acceptable deviation range is as determined by one of ordinary skill in the art. Determined taking into account the measurement in question and the errors associated with the measurement of a particular quantity (ie, limitations of the measurement system).

As used herein, "parallel", "perpendicular", and "equal" include the stated situation and the situation similar to the stated situation, the range of the similar situation is within the acceptable deviation range, wherein the The stated range of acceptable deviation is as determined by one of ordinary skill in the art taking into account the measurement in question and errors associated with measurement of the particular quantity (ie, limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; Deviation within 5°. "Equal" includes absolute equality and approximate equality, where the difference between the two that may be equal is less than or equal to 5% of either within acceptable tolerances for approximate equality, for example.

Figure 1A is a structural diagram of an air humidity control device according to some embodiments, Figure 1B is a top sectional view of the air humidity control device shown in Figure 1A, and Figure 1C is a front view of the air humidity control device shown in Figure 1A, Fig. 2A is a structural diagram of another air humidity control device according to some embodiments, and Fig. 2B is a structural diagram of the device shown in Fig. 2A turned 90° according to the A direction. Some embodiments of the present disclosure provide an air humidity control device. As shown in FIG. 1A , FIG. 1B , FIG. 1C , FIG. 2A and FIG. 2B , the air humidity control device 1000 includes a casing 100 . The casing 100 has an outdoor air inlet OA, an outdoor air outlet EA, an indoor air return RA and an indoor air supply SA. The casing 100 also has a fresh air channel and an exhaust channel. One end of the fresh air channel is connected to the outdoor air inlet OA, and the other end is connected to the indoor air supply outlet SA. One end of the exhaust channel is connected to the indoor return air outlet RA, and the other end is connected to the outdoor air outlet EA. In some embodiments, the indoor air return port RA and the indoor air supply port SA are arranged on the first side of the housing 100 (such as the indoor side shown in FIG. 1B ), and the outdoor air inlet OA and the outdoor air outlet EA are located on the first side of the housing 100 The second side (eg, the outdoor side shown in FIG. 1B ).

The outdoor fresh air is sent from the outdoor air inlet OA to the fresh air channel in the casing 100, leaves the casing 100 through the indoor air supply port SA, and is sent indoors. The indoor polluted air is transported from the indoor air return port RA to the exhaust channel in the housing 100, leaves the housing 100 through the outdoor air exhaust port EA, and is output to the outside.

Housing 100 has at least one switching chamber. In some embodiments, the housing 100 has a switching cavity, and the switching cavity may be disposed in the housing 100 near the first side, and may also be disposed in the housing 100 near the second side. location. In some embodiments, as shown in FIG. 1A and FIG. 1B , the housing 100 has two switching chambers, and the two switching chambers are respectively a first switching chamber 101 and a second switching chamber 103 . The first switching chamber 101 and the second switching chamber 103 are respectively located in the housing 100 near the first side and the second side. Hereinafter, the housing 100 has two switching

chambers

101 and 103 as an example for description.

The housing 100 also has a heat exchange cavity 102 . The heat exchange chamber 102 is located between the first switching chamber 101 and the second switching chamber 103 .

The housing 100 also includes a first partition 110 and a second partition 120 . In some embodiments, the first partition 110 is disposed inside the casing 100 near the first side, and is configured to separate the first switching chamber 101 from the heat exchange chamber 102; the second partition 120 is disposed on the shell A position inside the body 100 close to the second side is configured to separate the heat exchange chamber 102 from the second switching chamber 103 . In this way, the first switching chamber 101 is a cavity surrounded by the first partition 110 and the part of the casing 100 close to the first side, and the heat exchange chamber 102 is a cavity surrounded by the first partition 110 , the second partition 120 and the shell. The cavity enclosed by the middle part of the body 100 (that is, the part of the housing 100 defined between the first partition 110 and the second partition 120), the second switching chamber 102 is the second partition 120 and the housing 100 A cavity enclosed by a portion close to the second side.

The air humidity control device 1000 further includes a third partition 130 disposed in the casing 100 . The third partition 130 is located in the heat exchange chamber 102 and is configured to divide the heat exchange chamber 102 into a first sub-heat exchange chamber 1021 and a second sub-heat exchange chamber 1022 . The plane where the third partition 130 is located can be parallel to the arrangement direction of the first side and the second side of the casing 100 (such as the horizontal direction shown in FIG. 1A ), then the first sub-heat exchange chamber 1021 and the second sub-heat exchange chamber The cavities 1022 are arranged in a direction perpendicular to the arrangement direction of the first side and the second side of the housing 100 . It should be noted that the present disclosure does not limit the installation position of the third partition 130 . The plane where the third partition 130 is located can also be disposed in the heat exchange chamber 102 at other angles to the arrangement direction of the first side and the second side of the casing 100 .

The air humidity control device 1000 also includes a heat exchange component. The heat exchange assembly is disposed in the heat exchange cavity 102 . The heat exchange assembly includes a plurality of heat exchangers, which are respectively arranged in the first sub-heat exchange chamber 1021 and the second sub-heat exchange chamber 1022 . In some embodiments, as shown in FIG. 1A and FIG. 1C , the heat exchange assembly includes two heat exchangers, and the two heat exchangers are a first heat exchanger 300 and a second heat exchanger 400 . The first heat exchanger 300 and the second heat exchanger 400 are respectively disposed in the first sub-heat exchange chamber 1021 and the second sub-heat exchange chamber 1022 . The first heat exchanger 300 and the second heat exchanger 400 are respectively located on two sides of the third partition 130 , and the first heat exchanger 300 and the second heat exchanger 400 work independently.

The air humidity control device 1000 also includes at least one switching element. Each switching element is arranged in a corresponding one of the switching chambers. In some embodiments, the air humidity control device 1000 includes a switching element, and the switching element is disposed in the first switching chamber 101 or the second switching chamber 102 . In some embodiments, the air humidity control device 1000 includes two switching elements, the two switching elements are respectively a first switching element 210 and a second switching element 220 . The first switching element 210 and the second switching element 220 are respectively disposed in the first switching chamber 101 and the second switching chamber 102 . It should be noted that the structural designs of the first switching member 210 and the second switching member 220 may be the same or different. The following description will be made by taking the same structural design of the first switching member 210 and the second switching member 220 as an example.

The first switching element 210 or the second switching element 220 includes a switching body 205 , and an air inlet pipe 201 , an air outlet pipe 202 , a first heat exchange pipe 203 and a second heat exchange pipe 204 connected to the switch body 205 .

The switching body 205 has four connection ports, and the four connection ports are respectively a first connection port 2051 , a second connection port 2052 , a third connection port 2053 and a fourth connection port 2054 . The first connection port 2051 , the second connection port 2052 , the third connection port 2053 and the fourth connection port 2054 are connected to the air inlet pipe 201 , the air outlet pipe 202 , the first heat exchange pipe 203 and the second heat exchange pipe 204 respectively. .

The first connection port 2051 of the first switching member 210 communicates with the indoor air return port RA through the air inlet pipe 201 to input indoor dirty air into the housing 100; The indoor air supply port SA is connected to input outdoor fresh air from the housing 100 into the room.

The first connecting port 2051 of the second switching member 220 is connected to the outdoor air inlet OA through the air inlet pipe 201, so as to input outdoor fresh air to the fresh air channel of the housing 100; the second connecting port 2052 of the second switching member 220 passes through the air outlet pipe 202 is connected to the outdoor air exhaust outlet EA, so as to discharge the indoor dirty air from the exhaust channel of the casing 100 to the outdoor.

In some embodiments, the third connection port 2053 of the first switching element 210 or the second switching element 220 is connected to the first heat exchanger 300 through the first heat exchange tube 203; the first switching element 210 or the second switching element 220 The fourth connection port 2054 is connected to the second heat exchanger 400 through the second heat exchange tube 204 . In some embodiments, the first partition 110 has two first through holes 111, and the first heat exchange tube 203 and the second heat exchange tube 204 of the first switching member 210 pass through the two first through holes 111 and the second heat exchange tube 204 respectively. The first heat exchanger 300 and the second heat exchanger 400 are connected. The second partition 120 has two second through holes 121, and the first heat exchange tube 203 and the second heat exchange tube 204 of the second switching member 220 pass through the second through holes 121 and the first heat exchanger 300 and the second heat exchange tube respectively. Two heat exchangers 400 are connected.

Fig. 3A is a structural diagram of a first switching element or a second switching element according to some embodiments, Fig. 3B is a structural diagram of another angle of the first switching element or a second switching element shown in Fig. 3A, and Fig. 3C is FIG. 3A is a structural diagram of another angle of the first switching element or the second switching element, and FIG. 4 is a structural diagram of another first switching element or the second switching element according to some embodiments. As shown in FIG. 3A , FIG. 3B and FIG. 3C , the switch body 205 also has a flow cavity 2055 disposed inside it. The flow chamber 2055 communicates with the first connection port 2051 , the second connection port 2052 , the third connection port 2053 and the fourth connection port 2054 .

The first switching element 210 or the second switching element 220 further includes a switching valve 206 . The switching valve 206 is disposed in the flow cavity 2055 and can rotate in the flow cavity 2055 . The switching valve 206 is configured to block the flow chamber 2055 into two independent, non-communicating spaces for connecting the first connecting port 2051 of each switching member with the third connecting port 2053 or the fourth connecting port 2054. One is connected to connect the second connection port 2052 of each switching member with the other of the third connection port 2053 or the fourth connection port 2054, so as to change the flow direction of the air inlet airflow and the air outlet airflow direction.

It should be noted that the positions of the four connection ports of the first switching element 210 or the second switching element 220 on each switching element may be determined according to the internal space of the casing 100 . Some of the above four connecting ports may face in the same direction, or may face in four different directions respectively. In addition, the communication state between the four connection ports of the first switching member 210 or the second switching member 220 can be controlled and adjusted according to requirements.

In some embodiments, as shown in FIG. 3B and FIG. 4 , the switching body 205 further includes a first side plate 2056 , a second side plate 2057 , a third side plate 2058 and a fourth side plate 2059 connected in sequence, the first side The plate 2056 is set opposite to the third side plate 2058 , and the second side plate 2057 is set opposite to the fourth side plate 2059 . The first side plate 2056 , the second side plate 2057 , the third side plate 2058 and the fourth side plate 2059 enclose the flow cavity 2055 .

The switching body 205 also includes a plurality (for example, two) oppositely disposed cover plates 2050 . A plurality of cover plates 2050 are disposed adjacent to the above four side plates 2056 to 2059 , and the plurality of cover plates 2050 are configured to cover the flow cavity 2055 .

In some embodiments, as shown in FIG. 3B and FIG. 4 , the first connection port 2051 and the second connection port 2052 are respectively arranged on the two opposite side plates of the switching body 205 (ie, the first side plate 2056 and the third side plate 2058 ), the third connection port 2053 and the fourth connection port 2054 are arranged on the same cover plate 2050 of the switching body 205 .

FIG. 5A is a diagram of a usage state of the first switching member or the second switching member shown in FIG. 4 , and FIG. 5B is a diagram of another usage status of the first switching member or the second switching member shown in FIG. 4 . In some embodiments, the second side panel 2057 and the fourth side panel 2059 of the conversion body 205 have curved surfaces. As shown in FIG. 5A and FIG. 5B , the switching valve 206 may be a plate switching valve, including a rotating shaft 2061 and a valve plate 2062 . The valve plate 2062 rotates at a certain angle around the rotation axis 2061 . During the rotation process, the two ends of the valve plate 2062 are respectively in contact with the arc surface of the second side plate 2057 and the arc surface of the fourth side plate 2059, so that the first heat exchange tube 203 is connected with the air inlet pipe 201 and the air outlet pipe 202. The connection between one of them, and the connection between the second heat exchange pipe 204 and the other of the air inlet pipe 201 and the air outlet pipe 202 . For example, as shown in FIG. 5A, the valve plate 2062 rotates, and when it rotates to position I, the first connection port 2051 communicates with the third connection port 2053, and the second connection port 2052 communicates with the fourth connection port 2054; at this time, The first heat exchange pipe 203 communicates with the air inlet pipe 201 , and the second heat exchange pipe 204 communicates with the air outlet pipe 202 . When the switching valve 206 turns to position II, the first connection port 2051 communicates with the fourth connection port 2054, and the third connection port 2053 communicates with the second connection port 2052; at this time, the first heat exchange pipe 203 and the air outlet pipe 202 The second heat exchange pipe 204 communicates with the air inlet pipe 201 . As shown in FIG. 5B , when the valve plate 2062 is rotated to the horizontal position, the first connection port 2051 , the third connection port 2053 , the second connection port 2052 and the fourth connection port 2054 communicate with each other.

Fig. 6A is a structural diagram of another first switching element or a second switching element according to some embodiments, Fig. 6B is a structural diagram of another angle of the first switching element or a second switching element shown in Fig. 6A, Fig. 7A FIG. 6A is a diagram of a usage state of the first switching member or the second switching member, and FIG. 7B is a diagram of another usage status of the first switching member or the second switching member shown in FIG. 6A . In some embodiments, as shown in FIG. 6A , FIG. 6B , FIG. 7A and FIG. 7B , the switching body 205 can also be designed as a cylinder. The switching body 205 includes two cover plates 2050 oppositely arranged, and the shape of the two cover plates 2050 is circular. The first connection port 2051 and the second connection port 2052 are disposed on the same cover plate 2050 of the switch body 205 , and the third connection port 2053 and the fourth connection port 2054 are disposed on another cover plate 2050 of the switch body 205 .

In some embodiments, as shown in FIGS. 7A and 7B , the switching valve 206 includes a rotating shaft 2061 and a valve plate 2062 . The rotating shaft 2061 is located at the center of the valve plate 2062 . The valve plate 2062 is connected with the rotating shaft 2061, and the shape of the valve plate 2062 can be a plate. The rotating shaft 2061 is coaxially connected with the switch body 205 , and the valve plate 2062 rotates in the switch body 205 to connect different connection ports on the two cover plates 2050 .

When the valve plate 2062 of the switching valve 206 is rotated to different positions, the flow cavity 2055 can be blocked into two independent spaces that are not communicated with each other. For example, as shown in FIG. 7A, when the valve plate 2062 is rotated to position I, it is used to connect the first connection port 2051 with the third connection port 2053, and connect the second connection port 2052 with the fourth connection port 2054; At this time, the first heat exchange pipe 203 communicates with the air inlet pipe 201 , and the second heat exchange pipe 204 communicates with the air outlet pipe 202 . Or, as shown in FIG. 7B, when the valve plate 2062 is rotated to position II, the first connection port 2051 is connected to the fourth connection port 2054, and the second connection port 2052 is connected to the third connection port 2053; at this time, The first heat exchange pipe 203 communicates with the air outlet pipe 202 , and the second heat exchange pipe 204 communicates with the air inlet pipe 201 .

Fig. 8A is a structural diagram of another first switching element or a second switching element according to some embodiments, and Fig. 8B is a structural diagram of another angle of the first switching element or the second switching element shown in Fig. 8A. In some embodiments, as shown in FIG. 8A and FIG. 8B , the switching body 205 can also be designed as a composite structure with a square cylindrical outer contour and a cylindrical inner contour. At this time, the shape of the flow chamber 2055 of the switching body 205 is cylindrical, and the shape of the cover plate 2050 is circular. In some embodiments, the first switching element 210 or the second switching element 220 further includes a first driving device 209 . The first driving device 209 is disposed outside the switching body 205 and fixed on one of the two cover plates 2050 . The first driving device 209 is configured to drive the switching valve 206 in the flow chamber 2055 to rotate.

Fig. 9 is a structural diagram of another first switching element or a second switching element according to some embodiments, Fig. 10A is a working state diagram of the switching valve in the open state of the first sub-valve shown in Fig. 9, and Fig. 10B is Fig. 9 is a working state diagram of the switching valve in the open state of the second sub-valve. As shown in FIG. 9 , FIG. 10A and FIG. 10B , in some embodiments, the valve section 2062 of the switching valve 206 includes a first sub-valve section 20621 and a second sub-valve section 20622 arranged crosswise. Both the first sub-valve plate 20621 and the second sub-valve plate 20622 include a plurality of vanes 2063 and a plurality of switch parts. Each blade 2063 is rotatably connected with a corresponding switch portion configured to control the opening or closing of each blade 2063 .

The first sub-valve plate 20621 or the second sub-valve plate 20622 further includes a connecting rod 2064 and a second driving device 2065 . The switch parts on the first sub-valve 20621 and the second sub-valve 20622 are respectively connected together by a connecting rod 2064, and the movement of the connecting rod 2064 is controlled by the second driving device 2065 to realize the first sub-valve 20621 Or the vanes 2063 on the second sub-valve plate 20622 are switched synchronously.

The second driving device 2065 controls the connecting rod 2064 to realize synchronous switching of the blades 2063 on the first sub-valve plate 20621 or the second sub-valve plate 20622 .

For example, when the vanes 2063 on the first sub-valve 20621 are opened and the vanes 2063 on the second sub-valve 20622 are closed, as shown in FIG. 10A , the air inlet pipe 201 communicates with the first heat exchange pipe 203 , The air outlet pipe 202 communicates with the second heat exchange pipe 204 ; conversely, as shown in FIG. 10B , the air inlet pipe 201 communicates with the second heat exchange pipe 204 , and the air outlet pipe 202 communicates with the first heat exchange pipe 203 .

Fig. 11 is a block diagram of a regulating valve according to some embodiments. As shown in FIG. 11 , in some embodiments, the first switching element 210 or the second switching element 220 further includes a plurality of regulating valves disposed in the flow chamber 2055 . The regulating valve includes a driving part 2081 and two air volume regulating parts 2082 connected with the driving part 2081 . After the driving part 2081 is turned on, the driving part 2081 drives each air volume adjustment part 2082 to move relative to the first heat exchange tube 203 and the second heat exchange tube 204, thereby adjusting the opening size of the first heat exchange tube 203 and the second heat exchange tube 204 .

Fig. 12A is a structure diagram of a barrier according to some embodiments, Fig. 12B is a structure diagram of another barrier according to some embodiments, and Fig. 12C is a structure diagram of another barrier according to some embodiments structure diagram. As shown in FIG. 12A , FIG. 12B and FIG. 12C , in some embodiments, the first switching element 210 or the second switching element 220 further includes a plurality of blocking parts 207 . The plurality of blocking parts 207 are disposed in the flow cavity 2055 .

According to the actual installation space, a plurality of barrier parts 207 are respectively located on both sides of the air inlet pipe 201 and the air outlet pipe 202; and/or, a plurality of barrier parts 207 are respectively located in the first heat exchange tube 203 and Two sides of the second heat exchange tube 204 .

When the valve plate 2062 of the switching valve 206 rotates to the position where it abuts against the barrier part 207, it stops rotating. Under the action of the barrier part 207, the air inlet pipe 201 communicates with the first

heat exchange pipe

203 or 201 communicates with the second heat exchange tube 204 to switch between the two.

The setting of the blocking part 207 can reduce the resistance and friction generated during the rotation process of the valve plate 2062 of the switching valve 206 relative to the switching body 205, making the rotation process smoother, and can reduce the gas circulation resistance and noise.

Fig. 13 is a structural diagram of another air humidity control device according to some embodiments. As shown in FIG. 13 , in some embodiments, the indoor air supply port SA and the outdoor air exhaust port EA are arranged on the third side of the casing 100 (for example, the side adjacent to the indoor side and the outdoor side shown in FIG. 13 ), The outdoor air inlet OA and the indoor air return outlet RA are located on the fourth side of the casing 100 (for example, the other side adjacent to the indoor side and the outdoor side as shown in FIG. 13 ).

The air humidity control device 1000 further includes an exhaust fan 700 and a blower 800 . The exhaust fan 700 is disposed in the first switching chamber 101 on a side close to the outdoor air outlet EA, and is configured to exhaust air to the outside through the outdoor air outlet EA. The air blower 800 is disposed in the first switching chamber 101 on a side close to the indoor air supply outlet SA, and is configured to supply air to the room through the indoor air supply outlet SA.

The air humidity control device 1000 also includes an adsorbent 900, the adsorbent 900 is set (for example, pasted, clipped) on the first heat exchanger 300 or the second surface of the heat exchanger 400 . Certainly, the adsorption member 900 can also be arranged in the first heat exchanger 300 or the second heat exchanger 400 . The adsorbent 900 is configured to absorb moisture in the surrounding air when it is cold, and release the adsorbed moisture when it is hot. The adsorption member 900 is not limited to be installed in the air humidity control device shown in FIG. 13 , and may also be installed in the air humidity control device shown in FIGS. 1A to 2B .

Fig. 14 is a connection diagram of a refrigerant circulation system of an air humidity control device according to some embodiments. As shown in FIG. 14 , the air humidity control device 1000 further includes a compressor 510 , a four-way valve 520 and an expansion valve (such as an electronic expansion valve) 530 . The first heat exchanger 300 and the second heat exchanger 400 are respectively connected to the compressor 510 , the four-way valve 520 and the expansion valve 530 through refrigerant pipes. The sequentially connected compressor 510, four-way valve 520, first heat exchanger 300, expansion valve 530 and second heat exchanger 400 form a refrigerant circulation loop, and the refrigerant circulates in the refrigerant circulation loop and passes through the first heat exchange circuit. The heat exchanger 300 and the second heat exchanger 400 exchange heat with the air respectively, so as to realize the cooling mode or the heating mode of the air humidity control device 1000 .

The compressor 510 is configured to compress refrigerant so that the low pressure refrigerant is compressed to form high pressure refrigerant.

The first heat exchanger 300 is configured to exchange heat between the air in the first sub-heat exchange cavity 1021 and the refrigerant transported in the first heat exchanger 300, and the second heat exchanger 400 is configured to exchange heat between the second sub-exchange chamber 1021 The air in the thermal chamber 102 exchanges heat with the refrigerant transported in the second heat exchanger 400 . For example, the first heat exchanger 300 (indoor heat exchanger) works as a condenser in the heating mode of the air humidity control device 1000, so that the refrigerant compressed by the compressor 510 passes through the first heat exchanger 300 to dissipate heat. The air in the first sub-heat exchange chamber 1021 is condensed, and the second heat exchanger 400 (outdoor heat exchanger) works as an evaporator in the cooling mode of the air humidity control device 1000, so that the first heat exchanger The condensed refrigerant at 300 absorbs the heat of the air in the second sub-heat exchange chamber 1022 through the second heat exchanger 400 and evaporates. The first heat exchanger 300 works as an evaporator in the cooling mode of the air humidity control device 1000, so that the decompressed refrigerant absorbs the heat of the air in the first sub-heat exchange chamber 1021 through the first heat exchanger 300 and evaporates , the second heat exchanger 400 works as an evaporator in the heating mode of the air humidity control device 1000, so that the refrigerant evaporated by the first heat exchanger 300 dissipates heat to the second sub-exchanger through the second heat exchanger 400 The air in the hot chamber 1022 condenses.

In some embodiments, the first heat exchanger 300 and the second heat exchanger 400 further include heat exchange fins to expand the contact area between the air and the refrigerant transported in the first heat exchanger 300, thereby improving the first heat exchanger 300 and the second heat exchanger 400. The heat exchange efficiency between the air in the sub-heat exchange chamber 1021 and the refrigerant transported in the first heat exchanger 300; or, the contact area between the air and the refrigerant transported in the second heat exchanger 400 is enlarged, thereby improving the second heat exchanger 400. The heat exchange efficiency between the air in the second heat exchange cavity 1022 and the refrigerant transported in the second heat exchanger 400 .

The expansion valve 530 is connected between the first heat exchanger 300 and the second heat exchanger 400 , and the opening of the expansion valve 530 can be adjusted to control the flow and pressure of the refrigerant flowing through the expansion valve 530 . The pressure of the refrigerant flowing through the first heat exchanger 300 and the second heat exchanger 400 is adjusted by the opening of the expansion valve 530 to adjust the flow rate of the refrigerant flowing between the first heat exchanger 300 and the second heat exchanger 400 . The flow rate and pressure of the refrigerant circulating between the first heat exchanger 300 and the second heat exchanger 400 will affect the heat exchange performance of the first heat exchanger 300 and the second heat exchanger 400.

The four-way valve 520 is connected in the refrigerant circulation circuit, and the four-way valve 520 is configured to switch the flow direction of the refrigerant in the refrigerant circulation circuit so that the air humidity control device 1000 performs a cooling mode or a heating mode. In cooling mode, the air inlet channel communicates with the sub-heat exchange chamber where the evaporator is located, and the exhaust air channel communicates with the sub-heat exchange chamber where the condenser is located. In the heating mode, the air inlet channel communicates with the sub-heat exchange chamber where the condenser is located, and the exhaust air channel communicates with the sub-heat exchange chamber where the evaporator is located.

In some embodiments, the air humidity control device 1000 further includes a controller 540 . The controller 540 is electrically connected to the first driving device 209 and the four-way valve 520 (in FIG. 14 , the electrical connection is indicated by a dotted line), and the controller 540 is configured to: control the switching valve 206 through the first driving device 209 to switch the first The communication state between the four connection ports in the first switch 210 or the second switch 220, and/or, control the four-way valve 520 to switch the flow direction of the refrigerant in the first heat exchanger 300 and the second heat exchanger 400, so that The heating mode or cooling mode of the first heat exchanger 300 and the second heat exchanger 400 matches the operation mode (humidification mode or dehumidification mode) of the air humidity control device 1000 .

Controller 540 includes a processor. The processor can include a central processing unit (central processing unit, CPU)), a microprocessor (microprocessor), an application specific integrated circuit (application specific integrated circuit, ASIC), a chip, etc., and can be configured to be stored in a coupled When the programs in the non-transitory computer readable medium of the controller 540 are accessed, corresponding operations are performed. Non-transitory computer-readable storage media may include magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tape), smart cards, or flash memory devices (e.g., erasable programmable read-only memory (EPROM) , card, stick, or keyboard drive).

When the controller 540 determines that the operation mode of the air humidity control device 1000 is the humidification mode, the controller 540 controls the first switch 210 or the second switch 220 to connect the fresh air channel of the outdoor air inlet OA and the indoor air supply outlet SA to the condenser. The sub-heat exchange chamber where the evaporator is located communicates with the sub-heat exchange chamber where the evaporator is located. When the fresh air introduced from the outside passes through the outdoor air inlet OA and then passes through the condenser, the condenser heats the adsorbent 900 close to the condenser, and the moisture in the adsorbent 900 is evaporated and enters the fresh air to achieve indoor humidification.

When the controller 540 determines that the operation mode of the air humidity control device 1000 is the dehumidification mode, the controller 540 controls the first switch 210 or the second switch 220 to connect the fresh air channel of the outdoor air inlet OA and the indoor air supply outlet SA to the evaporator. The sub-heat exchange chamber where it is located is connected, and the exhaust passage connecting the indoor air return port RA and the outdoor air exhaust port EA is communicated with the sub-heat exchange chamber where the condenser is located. When the fresh air introduced from outside passes through the outdoor air inlet OA and then passes through the evaporator, the heat of water vapor in the fresh air is absorbed by the refrigerant in the evaporator, and the water vapor condenses into water and is absorbed by the adsorbent 900 in the heat exchange chamber to achieve dehumidification the goal of.

In this way, when the outdoor air humidity is high in summer, the moisture carried by the outdoor fresh air must first be absorbed by the adsorption member 900 in the sub-heat exchange chamber where the evaporator is located, and then the moisture in the sub-heat exchange chamber where the condenser is located will be absorbed by the indoor exhaust air. The moisture in the adsorbent 900 is taken outdoors, so that the moisture carried in the outdoor fresh air cannot enter the room. Or when humidifying in winter, the moisture in the indoor exhaust air is absorbed by the adsorbent 900 in the sub-heat exchange chamber where the evaporator is located, and then the moisture in the adsorbent 900 in the sub-heat exchange chamber where the condenser is located is absorbed by the outdoor fresh air. Bring it indoors, so as to achieve the purpose of keeping the moisture carried in the indoor exhaust air indoors. Since the adsorption part 900 is arranged on the surface of the heat exchanger, the adsorption part 900 takes up less space, and the sub-heat exchange chamber connected to the fresh air passage and the sub-heat exchange chamber connected to the exhaust passage are switched by the switching part. The embodiment does not need to separately provide a heat exchange chamber for dehumidification and a heat exchange chamber for humidification, so that the volume of the air humidity control device 1000 is small.

When the operation mode of the air humidity control device 1000 remains unchanged and the moisture adsorbed by the adsorbent 900 in the sub-heat exchange chamber where the evaporator is located is saturated, the controller 540 is configured to control the first switching member 210 or the second switching member 220 switches the connection state between the four connection ports to change the flow direction of the gas, so that the fresh air channel and the exhaust air channel exchange the sub-heat exchange chambers they are connected to, and controls the four-way valve 520 to be turned on or off to change the flow of the refrigerant. The flow direction, so that the evaporator is switched to a condenser. When the operation mode of the air humidity control device 1000 remains unchanged and the moisture adsorbed by the adsorbent 900 in the sub-heat exchange chamber where the condenser is located is saturated, the controller 540 is configured to control the first switching member 210 or the second switching member 220 switches the connection state between the four connection ports to change the flow direction of the gas, so that the fresh air channel and the exhaust air channel exchange the sub-heat exchange chambers they are connected to, and controls the four-way valve 520 to be turned on or off to change the flow of the refrigerant. so that the condenser is switched to an evaporator. Here, the saturated state means that the adsorbent 900 reaches an equilibrium state in which the adsorbed moisture is equal to the released moisture. In some embodiments of the present disclosure, the operation mode of the air humidity control device 1000 includes a dehumidification mode and a humidification mode.

Fig. 15A is a gas flow diagram of an air humidity control device in a humidification mode according to some embodiments, and Fig. 16A is a gas flow diagram of another air humidity control device in a humidification mode according to some embodiments. As shown in FIG. 15A and FIG. 16A , the air inlet pipe 201 of the first switching element 210 communicates with the first heat exchange pipe 203 , and the air outlet pipe 202 of the first switching element 210 communicates with the second heat exchange pipe 204 . The air inlet pipe 201 of the second switching element 220 communicates with the second heat exchange pipe 204 , and the air outlet pipe 202 of the second switching element 220 communicates with the first heat exchange pipe 203 . Thus, the fresh air passage connecting the outdoor air inlet OA and the indoor air supply outlet SA communicates with the second sub-heat exchange chamber 1022, and the exhaust passage connecting the indoor return air outlet RA and the outdoor air exhaust outlet EA communicates with the first sub-heat exchange chamber 1021 .

In this state, the second heat exchanger 400 (outdoor heat exchanger) is connected to the output end of the compressor as a condenser, and the first heat exchanger 300 (indoor heat exchanger) is connected to the input end of the compressor as an evaporator. device. The dry outdoor fresh air is transported into the circulation cavity 2055 of the second switching element 220 through the air inlet pipe 201 of the second switching element 220 , and is transported from the second heat exchange pipe 204 of the second switching element 220 to the second heat exchanger 400 In the second sub-heat exchange chamber 1022 where the (condenser) is located, it is heated by the second heat exchanger 400 to raise the temperature, and at the same time, the moisture on the adsorbent 900 in the second sub-heat exchange chamber 1022 is taken away. Finally, after humidification and heating The outdoor fresh air is output from the air outlet pipe 202 of the first switching member 210 to the room.

The indoor polluted air with high humidity enters the circulation cavity 2055 of the first switching element 210 from the air inlet pipe 201 of the first switching element 210, and then enters the first heat exchanging element 203 from the first heat exchanging element 210. In the first sub-heat exchange chamber 1021 where the evaporator 300 (evaporator) is located, the indoor sewage air is cooled down, and at the same time, the moisture in the indoor sewage air is condensed and then adsorbed on the adsorption member 900 in the first sub-heat exchange chamber 1021 , the finally dried indoor dirty air is discharged from the air outlet pipe 202 of the second switching member 220 .

When the adsorbent 900 in the second sub-heat exchange chamber 1022 is dried (the adsorbent 900 in the first sub-heat exchange chamber 1021 reaches saturation), the adsorbent 900 loses the ability to release moisture, and the controller 540 controls The first switching member 210 and the second switching member 220 switch the communication states between the respective four connection ports, so that the fresh air channel connecting the outdoor air inlet OA and the indoor air supply port SA communicates with the first sub-heat exchange chamber 1021, while the second A heat exchanger 300 is switched to be a condenser, and the exhaust channel connecting the indoor air return port RA and the outdoor air exhaust port EA is connected to the second sub-heat exchange chamber 1022 , while the second heat exchanger 400 is switched to be an evaporator. Thus, the adsorbent 900 in the first sub-heat exchange chamber 1021 continues to release moisture into the fresh air. At this time, the air humidity control device enters another communication mode of the humidification mode.

Fig. 15B is another air flow diagram of an air humidity control device in humidification mode according to some embodiments, and Fig. 16B is another air flow flow diagram of another air humidity control device in humidification mode according to some embodiments picture. As shown in FIG. 15B and FIG. 16B , the first heat exchanger 300 acts as a condenser, and the second heat exchanger 400 acts as an evaporator. The air inlet pipe 201 of the first switching element 210 communicates with the second heat exchange pipe 204 , and the air outlet pipe 202 of the first switching element 210 communicates with the first heat exchange pipe 203 . The air inlet pipe 201 of the second switching element 220 communicates with the first heat exchange pipe 203 , and the air outlet pipe 202 of the second switching element 220 communicates with the second heat exchanger 400 . Thus, the fresh air passage connecting the outdoor air inlet OA and the indoor air supply outlet SA communicates with the first sub-heat exchange chamber 1021, and the exhaust passage connecting the indoor return air outlet RA and the outdoor air exhaust outlet EA communicates with the second sub-heat exchange chamber 1022 .

The dry outdoor fresh air is transported into the circulation cavity 2055 of the second switching element 220 through the air inlet pipe 201 of the second switching element 220 , and is transported from the first heat exchange pipe 203 of the second switching element 220 to the first heat exchanger 300 In the first sub-heat exchange chamber 1021 where the (condenser) is located, it is heated by the first heat exchanger 300, and at the same time, the moisture on the adsorbent 900 in the first sub-heat exchange chamber 1021 is taken away. Finally, after humidification and heating The outdoor fresh air is output from the air outlet pipe 202 of the first switching member 210 to the room.

The indoor dirty air with high humidity enters the circulation cavity 2055 of the first switching element 210 from the air inlet pipe 201 of the first switching element 210, and then enters the second heat exchange pipe 204 of the first switching element 210 into the second heat exchanging element. In the second sub-heat exchange chamber 1022 where the evaporator 400 (evaporator) is located, the indoor sewage air is cooled down, and at the same time, the moisture in the indoor sewage air is condensed and then adsorbed on the adsorbent in the second sub-heat exchange chamber 1022. Finally, the indoor dirty air is discharged from the air outlet pipe 202 of the second switching member 220 .

In this way, during the humidification process in winter, the direction of the four-way valve 520 and the switching valve 206 is switched by the controller 540, so that the first heat exchanger 300 and the second heat exchanger 400 act as condensers alternately, and the first heat exchanger is reused. The adsorbent 900 in the heat exchange chamber 1021 and the adsorbent 900 in the second sub-heat exchange chamber 1022 keep the moisture in the indoor air indoors and prevent the moisture in the indoor air from being lost to the room. The heat exchange chamber and the humidification pipeline can ensure that the indoor air has a certain humidity, which reduces the manufacturing cost of the air humidity control device and simplifies the structure of the air humidity control device.

Fig. 17A is a gas flow diagram of an air humidity control device in dehumidification mode according to some embodiments, and Fig. 18A is another gas flow diagram of another air humidity control device in dehumidification mode according to some embodiments. As shown in Figure 17A and Figure 18A, the air inlet pipe 201 of the first switching element 210 communicates with the first heat exchange pipe 203, and the air outlet pipe 202 of the first switching element 210 communicates with the second heat exchange pipe 204; the second switching The air inlet pipe 201 of the element 220 communicates with the second heat exchange pipe 204 , and the air outlet pipe 202 of the second switching element 220 communicates with the first heat exchange pipe 203 . Thus, the fresh air passage connecting the outdoor air inlet OA and the indoor air supply outlet SA communicates with the second sub-heat exchange chamber 1022, and the exhaust passage connecting the indoor return air outlet RA and the outdoor air exhaust outlet EA communicates with the first sub-heat exchange chamber 1021 .

In this state, the second heat exchanger 400 (outdoor heat exchanger) is connected to the input end of the compressor as an evaporator, and the first heat exchanger 300 (indoor heat exchanger) is connected to the output end of the compressor as a condenser. device. The outdoor fresh air with high humidity is transported into the circulation cavity 2055 of the second switching element 220 through the air inlet pipe 201 of the second switching element 220, and is transported from the second heat exchange pipe 204 of the second switching element 220 to the second heat exchange In the second sub-heat exchange chamber 1022 where the evaporator 400 (evaporator) is located, it is cooled by the second heat exchanger 400, and the moisture in the outdoor fresh air is condensed and then adsorbed on the adsorption member 900 in the second sub-heat exchange chamber 1022 , finally, the dried indoor fresh air is output to the room from the air outlet pipe 202 of the first switching member 210 .

The dry indoor dirty air enters the circulation cavity 2055 of the first switching element 210 from the air inlet pipe 201 of the first switching element 210, and then enters the first heat exchanger 300 from the first heat exchange pipe 203 of the first switching element 210 In the first sub-heat exchange chamber 1021 where the (condenser) is located, the indoor sewage air absorbs the heat released by the refrigerant in the first heat exchanger 300 and at the same time takes away the moisture released by the adsorbent 900 in the first sub-heat exchange chamber 1021 , and then discharged from the air outlet pipe 202 of the second switching member 220 .

When the adsorbent 900 in the second sub-heat exchange chamber 1022 reaches saturation (the adsorbent 900 in the first sub-heat exchange chamber 1021 is dried), the adsorbent 900 loses the ability to absorb moisture, and the controller 540 controls The first switching member 210 and the second switching member 220 switch the communication states between the respective four connection ports, so that the fresh air channel connecting the outdoor air inlet OA and the indoor air supply port SA communicates with the first sub-heat exchange chamber 1021, while the second A heat exchanger 300 is switched to be an evaporator, and the exhaust channel connecting the indoor air return port RA and the outdoor air exhaust port EA is connected to the second sub-heat exchange chamber 1022, and the second heat exchanger 400 is switched to be a condenser. Thus, the adsorbent 900 in the first sub-heat exchange chamber 1021 continues to absorb moisture in the fresh air. At this time, the air humidity control device enters another connection mode of the dehumidification mode.

Fig. 17B is another air flow diagram of an air humidity control device in dehumidification mode according to some embodiments, and Fig. 18B is another air flow diagram of another air humidity control device in dehumidification mode according to some embodiments . As shown in FIG. 17B and FIG. 18B , the first heat exchanger 300 acts as an evaporator, and the second heat exchanger 400 acts as a condenser. The air inlet pipe 201 of the first switching element 210 communicates with the second heat exchange pipe 204 , and the air outlet pipe 202 of the first switching element 210 communicates with the first heat exchange pipe 203 . The air inlet pipe 201 of the second switching element 220 communicates with the first heat exchange pipe 203 , and the air outlet pipe 202 of the second switching element 220 communicates with the second heat exchange pipe 204 . Thus, the fresh air passage connecting the outdoor air inlet OA and the indoor air supply outlet SA communicates with the first sub-heat exchange chamber 1021, and the exhaust passage connecting the indoor return air outlet RA and the outdoor air exhaust outlet EA communicates with the second sub-heat exchange chamber 1022 .

The outdoor fresh air with high humidity is transported into the circulation chamber 2055 of the second switching element 220 through the air inlet pipe 201 of the second switching element 220, and is transported from the first heat exchange tube 203 of the second switching element 220 to the first heat exchanger 300 (evaporator) in the first sub-heat exchange chamber 1021 is cooled by the first heat exchanger 300, and the moisture in the outdoor fresh air is condensed and then adsorbed on the adsorption piece 900 in the first sub-heat exchange chamber 1021. Finally, the dried indoor fresh air is output to the room from the air outlet pipe 202 of the first switching member 210 .

The dry indoor dirty air enters the circulation cavity 2055 of the first switching element 210 from the air inlet pipe 201 of the first switching element 210, and then enters the second heat exchanger from the second heat exchange pipe 204 of the first switching element 210 In the second sub-heat exchange chamber 1022 where 400 (condenser) is located, the indoor sewage air absorbs the heat released by the refrigerant in the second heat exchanger 400, and at the same time takes away the heat released from the adsorbent 900 in the second sub-heat exchange chamber 1022. The moisture that comes out is finally discharged from the air outlet pipe 202 of the second switching member 220 .

The direction of the four-way valve 520 and the switching valve 206 is switched by the controller 540, so that the first heat exchanger 300 and the second heat exchanger 400 are alternately used as evaporators, and the adsorbent in the first sub-heat exchange chamber 1021 is reused 900 and the adsorbent 900 in the second sub-heat exchange chamber 1022 isolate the moisture in the outdoor air outside, so that the moisture in the outdoor air cannot enter the room, so there is no need to separately set up a heat exchange chamber and dehumidification pipeline for dehumidification , can avoid drying of the indoor air, reduce the manufacturing cost of the air humidity control device, and simplify the structure of the air humidity control device.

As shown in FIG. 19 , some embodiments of the present disclosure also provide a control method of an air humidity control device, and the control method is applied to the above air humidity control device. The control method includes S1 to S4.

S1, the controller 540 obtains the operation mode of the air humidity control device, and the operation mode includes a humidification mode and a dehumidification mode.

In some embodiments, the method for the controller 540 to acquire the operation mode of the air humidity control device in S1 includes S11 to S13.

S11, the controller 540 obtains the outdoor temperature Tout, the indoor temperature Tin, and the indoor relative humidity A0.

S12, in response to the outdoor temperature Tout being greater than or equal to the first preset temperature t1 (ie Tout≥t1), the indoor temperature Tin being greater than or equal to the second preset temperature t2 (ie Tin≥t2), and the indoor relative humidity A0 being greater than the first preset Relative humidity A1 (ie A0>A1), the controller 540 determines that the current operating mode of the air humidity control device is the dehumidification mode. The first preset temperature t1 is greater than the second preset temperature t2, for example, the first preset temperature t1 is 35°C, and the second preset temperature t2 is 25°C. The first preset relative humidity A1 is, for example, 80%.

S13, in response to the outdoor temperature Tout being less than or equal to the third preset temperature t3 (ie Tout≤t3), the indoor temperature Tin being less than or equal to the fourth preset temperature t4 (ie Tin≤t4), and the indoor relative humidity A0 being less than the second preset temperature Relative humidity A2 (ie A0<A2), the controller 540 determines that the current operation mode of the air humidity control device is the humidification mode. The third preset temperature t3 is lower than the fourth preset temperature t4, for example, the third preset temperature t3 is -5°C, and the fourth preset temperature t4 is 18°C. The second preset relative humidity A2 is, for example, 20%.

The present disclosure does not limit the relationship between the second preset temperature t2 and the fourth preset temperature t4, and the relationship between the first preset relative humidity and the second preset relative humidity. In some embodiments, 0<t3<t4<t2<t1, 0<a2<a1<1.

S2, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and determines the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage, and the state of the heat exchanger is Includes evaporator and condenser.

In S2, the controller 540 can determine the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and there are many methods for determining the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage.

In some embodiments, the controller 540 determines the sub-groups connected by the fresh air channel according to any two or more combinations of the indoor air supply temperature Tsa, the outdoor exhaust air temperature Tea, the outdoor air inlet temperature Toa, and the indoor return air temperature Tra. The state of the heat exchanger in the heat exchange chamber and the state of the heat exchanger in the sub-heat exchange chamber communicated with the exhaust passage are determined.

In some embodiments, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel, and the step of determining the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air channel includes S211 to S241.

S211, the controller 540 acquires the indoor supply air temperature Tsa and the outdoor exhaust air temperature Tea; for this, the air humidity control device further includes a temperature sensor disposed at the indoor air supply outlet SA and a temperature sensor disposed at the outdoor air exhaust outlet EA.

S221, the controller 540 determines whether the indoor supply air temperature Tsa is lower than the outdoor exhaust air temperature Tea.

S231, in response to the indoor supply air temperature Tsa being lower than the outdoor exhaust air temperature Tea (that is, Tsa<Tea), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is an evaporator , the heat exchanger in the sub-heat exchange chamber communicated with the exhaust channel is a condenser. At this time, the air humidity control device is in cooling mode.

S241, in response to the indoor supply air temperature Tsa being greater than or equal to the outdoor exhaust air temperature Tea (that is, Tsa≥Tea), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is a condensing The heat exchanger in the sub-heat exchange chamber communicated with the exhaust air channel is an evaporator. At this time, the air humidity control device is in heating mode.

In some embodiments, the step of the controller 540 determining the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and determining the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage includes S212 to S242.

S212, the controller 540 acquires the indoor air supply temperature Tsa and the outdoor air intake temperature Toa; for this, the air humidity control device further includes a temperature sensor set at the indoor air supply outlet SA and a temperature sensor set at the outdoor air inlet OA.

S222, the controller 540 determines whether the indoor air supply temperature Tsa is lower than the outdoor air inlet temperature Toa.

S232, in response to the indoor air supply temperature Tsa being lower than the outdoor air inlet temperature Toa (that is, Tsa<Toa), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is an evaporator , the heat exchanger in the sub-heat exchange chamber communicated with the exhaust channel is a condenser. At this time, the air humidity control device is in cooling mode.

S242. In response to the indoor air supply temperature Tsa being greater than or equal to the outdoor air inlet temperature Toa (that is, Tsa≥Toa), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is a condensing The heat exchanger in the sub-heat exchange chamber communicated with the exhaust air channel is an evaporator. At this time, the air humidity control device is in heating mode.

In some embodiments, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel, and the step of determining the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air channel includes S213 to S243.

S213, the controller 540 obtains the outdoor exhaust air temperature Tea and the indoor return air temperature Tra; for this, the air humidity control device further includes a temperature sensor disposed at the outdoor air exhaust outlet EA and a temperature sensor disposed at the indoor return air outlet RA.

S223, the controller 540 determines whether the outdoor exhaust air temperature Tea is lower than the indoor return air temperature Tra.

S233, in response to the outdoor exhaust air temperature Tea being lower than the indoor return air temperature Tra (that is, Tea<Tra), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is an evaporator , the heat exchanger in the sub-heat exchange chamber communicated with the exhaust channel is a condenser. At this time, the air humidity control device is in cooling mode.

S243, in response to the outdoor exhaust air temperature Tea being greater than or equal to the indoor return air temperature Tra (that is, Tea≥Tra), the controller 540 determines that the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel is a condensing The heat exchanger in the sub-heat exchange chamber communicated with the exhaust air channel is an evaporator. At this time, the air humidity control device is in heating mode.

In some embodiments, the controller 540 is based on any two of the indoor air supply humidity ratio dsa, the outdoor air intake humidity doa, the indoor return air humidity dra, and the outdoor exhaust air humidity dea Or multiple combinations, determine the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and determine the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage.

In some embodiments, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel, and the step of determining the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air channel includes S214 to S244.

S214, the controller 540 acquires the humidity content dsa of the indoor air supply and the humidity content doa of the outdoor air intake; for this purpose, the air humidity control device further includes a humidity sensor installed at the indoor air supply outlet SA and a humidity sensor installed at the outdoor air inlet OA. Humidity Sensor.

S224, the controller 540 judges whether the moisture content dsa of the indoor air supply is smaller than the moisture content doa of the outdoor air intake;

S234, in response to the humidity content dsa of the indoor supply air being smaller than the humidity content doa of the outdoor air intake (that is, dsa<doa), the controller 540 determines the heat exchange rate in the sub-heat exchange chamber connected to the fresh air passage. The heat exchanger is an evaporator, and the heat exchanger in the sub-heat exchange chamber connected with the exhaust channel is a condenser. At this time, the air humidity control device is in cooling mode.

S244, in response to the humidity content dsa of the indoor supply air being greater than or equal to the humidity content doa of the outdoor air intake (that is, dsa≥doa), the controller 540 determines the The heat exchanger is a condenser, and the heat exchanger in the sub-heat exchange chamber connected with the exhaust passage is an evaporator. At this time, the air humidity control device is in heating mode.

In some embodiments, the step of the controller 540 determining the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and determining the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage includes S215 to S245.

S215, the controller 540 obtains the humidity content dsa of the indoor air supply and the moisture content dra of the indoor return air; for this purpose, the air humidity control device further includes a humidity sensor installed at the indoor air supply outlet SA and a humidity sensor installed at the indoor air return outlet RA. Humidity Sensor.

S225, the controller 540 judges whether the humidity content dsa of the indoor supply air is smaller than the humidity content dra of the indoor return air.

S235, in response to the humidity content dsa of the indoor supply air being smaller than the humidity content dra of the indoor return air (that is, dsa<dra), the controller 540 determines the heat exchange rate in the sub-heat exchange chamber connected to the fresh air passage. The heat exchanger is an evaporator, and the heat exchanger in the sub-heat exchange chamber connected with the exhaust channel is a condenser. At this time, the air humidity control device is in cooling mode.

S245. In response to the indoor supply air moisture content dsa being greater than or equal to the indoor return air moisture content dra (that is, dsa≥dra), the controller 540 determines the The heater is a condenser. At this time, the air humidity control device is in heating mode.

In some embodiments, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and the step of determining the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage includes S216 to S246.

S216, the controller 540 obtains the outdoor exhaust air moisture content dea and the indoor return air humidity content dra; for this, the air humidity control device further includes a humidity sensor installed at the outdoor air exhaust outlet EA and an indoor return air outlet RA. humidity sensor.

S226, the controller 540 determines whether the moisture content dea of the outdoor exhaust air is smaller than the moisture content dra of the indoor return air.

S236. In response to the moisture content dea of the outdoor exhaust air being smaller than the moisture content dra of the indoor return air (that is, dea<dra), the controller 540 determines that The heat exchanger is an evaporator, and the heat exchanger in the sub-heat exchange chamber connected with the exhaust passage is a condenser. At this time, the air humidity control device is in cooling mode.

S246. In response to the outdoor exhaust air moisture content dea being greater than or equal to the indoor return air moisture content dra (that is, dea≥dra), the controller 540 determines the The heater is a condenser. At this time, the air humidity control device is in heating mode.

S3, the controller 540 judges the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air channel and the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air channel, and communicates with the air humidity control device Whether the running mode matches.

For example, in response to the fact that the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage is an evaporator (the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage is a condenser), and the air humidity is adjusted When the operation mode of the device is the dehumidification mode, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage and the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage. The state matches the operating mode of the air humidity control device.

In response to the fact that the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage is a condenser (the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage is an evaporator), and the air humidity control device When the operation mode is humidification mode, the controller 540 determines the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage and the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage, Matches the operating mode of the air humidity control unit.

S4, in response to the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air passage and the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air passage, and the operation of the air humidity control device If the modes do not match, the controller 540 controls the first switching member 210 and/or the second switching member 220 to switch the connection state between the respective four connection ports to change the flow direction of the gas, so that the sub-heat exchange chamber connected by the fresh air channel The sub-heat exchange chamber connected with the exhaust channel is interchanged; or, the controller 540 controls the four-way valve 520 to be turned on or off to change the flow direction of the refrigerant, so that the evaporator is switched to a condenser, and the condenser is switched to an evaporator .

Regardless of whether the operating mode of the air humidity control device is humidification mode or dehumidification mode, if the fresh air passage passes through one sub-heat exchange chamber for a long time, and the exhaust air passage passes through another sub-heat exchange chamber for a long time, the sub-heat exchange chamber connected by the fresh air passage will The adsorbent 900 in will enter a saturated state (dehumidification mode) or a dry state (humidification mode). Therefore, as shown in FIG. 19 , the control method of the air humidity control device provided by some embodiments of the present disclosure further includes S51, S52 and S61, S62.

S51, in the dehumidification mode, the controller 540 judges whether the air humidity control device satisfies the conversion condition.

The conversion conditions include, for example, that the adsorbent 900 in the sub-heat exchange chamber connected with the fresh air channel enters a saturated state, or the adsorbent 900 in the sub-heat exchange chamber communicated with the exhaust air passage enters a dry state.

S52, in response to the air humidity control device meeting the switching conditions, the controller 540 controls the sub-heat exchange chamber connected to the fresh air channel and the sub-heat exchange chamber connected to the exhaust air channel to exchange, and controls the evaporator to switch to a condenser or a condenser Switch to vaporizer.

S61, in the humidification mode, the controller 540 judges whether the air humidity control device satisfies the conversion condition.

The conversion conditions include, for example, that the adsorbent 900 in the sub-heat exchange chamber connected with the fresh air channel enters a dry state, or the adsorbent 900 in the sub-heat exchange chamber communicated with the exhaust air passage enters a saturated state.

S62, in response to the air humidity control device meeting the switching conditions, the controller 540 controls the sub-heat exchange chamber connected to the fresh air channel and the sub-heat exchange chamber connected to the exhaust air channel to exchange, and controls the evaporator to switch to a condenser, a condenser Switch to vaporizer.

In some embodiments, the indoor humidity detection device 10 is used to monitor the humidity of the fresh air delivered to the room in real time, and the indoor humidity detection device 10 is set at the indoor air supply outlet SA. The indoor humidity detection device 10 is configured to detect the humidity of the fresh air delivered to the room in real time, and transmit the humidity information to the controller 540 . The controller 540 judges whether the adsorption member 900 is in a saturated state or a dry state according to the humidity difference within a predetermined time period, so as to determine whether the air humidity control device satisfies the conversion condition.

In some embodiments, the predetermined time period includes two time points, one time point is the start point of the predetermined time period, and the other time point is the end point of the predetermined time period. At the starting point, the moisture content of the fresh air delivered to the room is d _i ; at the end point, the moisture content of the fresh air delivered to the room is d _i+1 .

In the dehumidification mode, the method for the controller 540 to determine whether the air humidity control device satisfies the conversion condition includes S101 to S104.

S101, the controller 540 obtains the moisture content d _i of the fresh air delivered indoors at the start point, and the moisture content d _i+1 of the fresh air delivered indoors at the end point.

S102, the controller 540 judges whether the moisture content of the fresh air delivered to the room at the end point is d _i+1 , whether it is greater than or equal to the moisture content of the fresh air delivered to the room at the start point is d _i . If it is greater than, execute S103, and if it is equal, execute S104.

S103, in response to the fact that the humidity content of the fresh air delivered to the room at the end point is d _i+1 greater than the humidity content of the fresh air delivered indoors at the start point is d _i (that is, d _i+1 >d _i ), the controller 540 determines that the adsorption capacity of the adsorption element 900 in the sub-heat exchange chamber connected with the fresh air channel has decayed, but the adsorption element 900 has not yet reached a saturated state. At this time, the controller 540 resets the start point and the end point of the predetermined time period, and repeatedly executes S101 and S102.

S104, in response to the fact that the humidity content of the fresh air delivered to the room at the end point is d _i+1 equal to the humidity content of the fresh air delivered indoors at the start point is d _i (that is, d _i+1 =d _i ), the controller 540 determines that the adsorption capacity of the adsorption element 900 in the sub-heat exchange chamber connected with the fresh air channel has decayed to 0, and the adsorption element 900 has reached a saturated state. The controller 540 determines that the air humidity adjusting device satisfies the conversion condition.

In order to prevent the failure of the humidity detection device 10 from causing inaccurate measurement of the humidity content of the fresh air delivered to the room, the method for the controller 540 to determine whether the air humidity control device meets the conversion conditions further includes: the controller 540 obtains the air humidity control device according to the current The cumulative running time T of state running, when the cumulative running time T is greater than or equal to the set threshold, the controller 540 determines that the air humidity control device meets the conversion condition. When the controller 540 uses this method and the methods described in S101 to S104 to determine whether the air humidity control device meets the switching conditions, this method is preferred. It should be noted that the accumulative running time T of the air humidity control device running according to the current state is the same as the length of time that the fresh air channel is continuously connected to a certain sub-heat exchange chamber.

In the humidification mode, the method for the controller 540 to determine whether the air humidity control device satisfies the conversion condition includes S101' to S104'.

S101', the controller 540 acquires the moisture content d _i of the fresh air delivered to the room at the start point, and the moisture content d _i+1 of the fresh air delivered to the room at the end point.

S102', the controller 540 judges whether the moisture content d _i+1 of the fresh air delivered to the room at the end point is less than or equal to the moisture content d _i of the fresh air delivered indoors at the start point. If it is less than, execute S103', and if it is equal, execute S104'.

S103', in response to the fact that the moisture content of the fresh air delivered to the room at the end point is d _i+1 less than the humidity content of the fresh air delivered indoors at the start point is d _i (that is, d _i+1 < d _i ), the controller 540 determines that the release capacity of the adsorbent 900 in the sub-heat exchange chamber connected with the fresh air channel has decayed, but the adsorbent 900 has not yet reached a dry state. At this time, the controller 540 resets the start point and the end point of the predetermined time period, and repeatedly executes S101' and S102'.

S104', in response to the fact that the humidity content of the fresh air delivered to the room at the end point is d _i+1 equal to the humidity content of the fresh air delivered indoors at the start point is d _i (that is, d _i+1 = d _i ), the controller 540 determines that the release capacity of the adsorbent 900 in the sub-heat exchange chamber connected with the fresh air channel has decayed to 0, and the adsorbent 900 has reached a dry state. The controller 540 determines that the air humidity adjusting device satisfies the conversion condition.

Similarly, in order to prevent the failure of the humidity detection device 10 from causing inaccurate moisture content of the fresh air delivered to the room, the method for the controller 540 to determine whether the air humidity control device meets the conversion conditions further includes: the controller 540 acquires According to the cumulative running time T of running in the current state, when the cumulative running time T is greater than or equal to the set threshold, the controller 540 determines that the air humidity control device meets the conversion condition. When the controller 540 uses this method and the methods described in S101' to S104' to determine whether the air humidity control device meets the conversion conditions, this method is preferred. It should be noted that the accumulative running time T of the air humidity control device running according to the current state is the same as the length of time that the fresh air channel is continuously connected to a certain sub-heat exchange chamber.

In some embodiments, the air humidity control device 1000 further includes an outdoor temperature detection device 20 , an outdoor humidity detection device 30 and an air quality detection device 40 . The outdoor temperature detection device 20 is used to detect the outdoor temperature and send the outdoor temperature information to the controller 540 . The outdoor humidity detecting device 30 is used for detecting the outdoor relative humidity, and sending the outdoor relative humidity information to the controller 540 . The air quality detection device 40 is used to detect outdoor air quality, such as PM2.5, and send the air quality information to the controller 540 .

The controller 540 of the air humidity control device 1000 is further configured to: when determining that the air humidity control device meets the dehumidification condition according to the outdoor temperature and the outdoor relative humidity, control the air humidity control device to start dehumidification, and determine the air humidity according to the outdoor air quality. Dehumidification mode of the humidity control unit.

In some embodiments, the conditions for judging whether to enter dehumidification are: ① The outdoor temperature is less than or equal to the first preset outdoor temperature T1, and the higher the indoor relative humidity, the lower the perceived temperature. The value range of T1 is 10°C-18°C. ② The outdoor relative humidity is greater than or equal to the first preset outdoor relative humidity M1, and the value range of M1 is 50%-80%. If the above two conditions are met at the same time, the air humidity control device is controlled to start dehumidification.

In the air humidity control device 1000 of some embodiments of the present disclosure, the controller 540 controls the first switching member 210 and/or the second switching member 220 to switch the communication state between the respective four connection ports to change the flow direction of the gas, which can At the same time, it realizes the function of dehumidifying and heating the wind sent into the room, reducing the feeling of cold wind and improving the user experience.

In some embodiments, the air humidity control device 1000 further includes an outdoor air exhaust damper, which is disposed in the outdoor air exhaust outlet EA.

In some embodiments, the air humidity control device 1000 further includes an outdoor air intake damper, and the outdoor air intake damper is disposed in the outdoor air intake OA.

When the air humidity control device 1000 is dehumidifying, the controller 540 controls the four connection ports of the first switch 210 to communicate with each other, one of the first heat exchanger 300 and the second heat exchanger 400 serves as an evaporator, and the other The heat exchanger acts as a condenser. The air humidity control device 1000 dehumidifies the air passing through the evaporator and heats the air passing through the condenser. All or part of the two paths of air are mixed at the first switch 210 and sent into the room through the indoor air supply port SA. The mixed air can not only dehumidify, but also heat up, providing users with comfortable air supply.

In some embodiments, the dehumidification mode of the air humidity control device 1000 includes the internal circulation reheating dehumidification mode. When the outdoor air quality is lower than the set value, the controller 540 controls the air humidity control device to perform the internal circulation reheating dehumidification mode. The timing controller 540 is configured to perform S201 and S202.

S201, closing the outdoor air exhaust damper and the outdoor air intake damper.

S202, control the four connecting ports of the second switch 220 to communicate with each other, part of the air entering the second switch from the indoor air return port RA enters the first sub-heat exchange chamber 1021, and the other part enters the second sub-heat exchange chamber 1022 , the air heat-exchanged in the first sub-heat exchange chamber 1021 and the air heat-exchanged in the second sub-heat exchange chamber 1022 are mixed at the first switching member 210 and sent into the room from the indoor air supply port SA.

The dehumidification principle of the internal circulation reheating dehumidification mode is: when a part of the indoor air passes through the evaporator, it is absorbed by the refrigerant in the evaporator, and the moisture in this part of the air condenses into water to achieve the purpose of removing the moisture in this part of the air .

The other part of the indoor air enters the heat exchange chamber where the condenser is located. This part of the air is heated by the condenser when passing through the condenser, and the temperature rises. Then the two parts of the air enter the first switching element 210 and mix to obtain dry and high temperature. gas.

Some embodiments of the present disclosure are also applicable to the situation of outdoor air pollution. By closing the outdoor air exhaust damper and the outdoor air intake damper, it is possible to prevent the polluted outdoor air from entering the room through the air outlet connected to the outdoor, so as to ensure the respiratory health of the user. .

In some embodiments, the air humidity control device 1000 further includes two water receiving pans, the two water receiving pans are respectively arranged on the side of the first heat exchanger 300 and the second heat exchanger 400 facing the housing 100 , Used to collect condensed water generated during dehumidification.

The water storage capacity of the water receiving tray is limited, and when the water receiving tray is full of water, the water can be discharged out of the housing 100 through the water pump. The water receiving tray has a water level detection device, and the controller 540 obtains the water level of the water receiving tray corresponding to the evaporator through the water level detecting device, and controls the water pump to drain water when the water level reaches a set value.

In some embodiments, the dehumidification effect of the air delivered to the room is related to the air flow through the evaporator and the moisture content; in order to ensure the dehumidification effect, the controller 540 is configured to execute S301 and S302.

S301. Obtain the humidity content of the indoor return air, the humidity content of the indoor supply air, and the target moisture content.

S302. Comparing the humidity content of the indoor supply air with the target moisture content, and adjusting the air flow rates of the second switching member 220 to the first sub-heat exchange chamber 1021 and the second sub-heat exchange chamber 1022 respectively according to the comparison result.

For example, when the difference between the humidity content of the indoor air supply and the target humidity content is greater than or equal to the upper limit, the air flow that leads the second switching member 220 to the sub-heat exchange chamber where the evaporator is located increases. For another example, when the difference between the humidity content of the indoor air supply and the target moisture content is less than or equal to the lower limit, the flow of air from the second switching member 220 to the heat exchange chamber where the evaporator is located is reduced.

That is to say, when the difference between the humidity content of the indoor supply air and the target moisture content is too large, it is necessary to increase the dehumidification of the indoor air. This is achieved by increasing the air flow in the cavity. When the difference between the humidity content of the indoor supply air and the target moisture content is small, it means that the current humidity content of the indoor supply air can meet the demand. At this time, appropriately increasing the air flow to the heat exchange chamber where the condenser is located can improve the indoor The temperature of the air supply, that is, to improve comfort.

In some embodiments of the present disclosure, the relationship between the humidity content of the indoor supply air, the humidity content of the indoor return air, and the target moisture content is judged in real time, and the air flow leading to the sub-heat exchange chamber where the evaporator is located is adjusted in time to ensure that the air The humidity control unit always has a highly efficient dehumidification effect. It should be noted that, in some embodiments, the humidity content of the indoor return air is not necessary.

In some embodiments, in order to respectively obtain the humidity content of the indoor supply air, the humidity content of the indoor return air, and the target humidity content, the air humidity control device 1000 further includes: an indoor return air temperature detection device 50 and an indoor return air humidity detection device 50 device 60. The indoor return air temperature detection device 50 is used to detect the temperature of the indoor return air; the indoor return air humidity detection device 60 is used to detect the relative humidity of the indoor return air; Describe the humidity content of the indoor return air.

The air humidity control device 1000 further includes: an indoor supply air temperature detection device 70 and an indoor supply air humidity detection device 80 . The indoor air supply temperature detection device 70 is used to detect the temperature of the indoor air supply; the indoor air supply humidity detection device 80 is used to detect the relative humidity of the air supply; Describe the humidity content of the indoor supply air.

Determining the corresponding moisture content according to the temperature and relative humidity can be obtained by using an existing algorithm, which will not be described in detail here.

If the user does not set the target moisture content, but sets the target temperature and target relative humidity, the target moisture content can also be calculated according to the target temperature and target relative humidity.

Those skilled in the art will understand that the disclosed scope of the present invention is not limited to the specific embodiments described above, and some elements of the embodiments can be modified and replaced without departing from the spirit of the application. The scope of the application is limited by the appended claims.

Claims

An air humidity control device, comprising:

The casing includes a first sub-heat exchange chamber and a second sub-heat exchange chamber, each of which has an adsorption member configured to absorb or release moisture;

A first heat exchanger and a second heat exchanger, the first heat exchanger is located in the first sub-heat exchange chamber, and the second heat exchanger is located in the second sub-heat exchange chamber; One of the first heat exchanger and the second heat exchanger is an evaporator, and the other of the first heat exchanger and the second heat exchanger is a condenser;

Fresh air passage, one end of the fresh air passage is connected to the outdoor air inlet, and the other end is connected to the indoor air supply outlet, the outdoor air inlet and the indoor air supply outlet are located on the housing, and the fresh air passage is connected to the first sub-exchange One of the heat chamber or the second sub-heat exchange chamber;

An air exhaust channel, one end of the exhaust channel is connected to the indoor air return port, and the other end is connected to the outdoor air exhaust port, the indoor air return port and the outdoor air exhaust port are located on the housing, and the exhaust channel communicates with all The other of the first sub-heat exchange chamber or the second sub-heat exchange chamber;

The first switching element and the second switching element are both located in the fresh air passage and the exhaust air passage, and are configured to connect the fresh air passage to one of the first sub-heat exchange chamber and the second sub-heat exchange chamber communicate, and make the exhaust channel communicate with the other of the first sub-heat exchange chamber and the second sub-heat exchange chamber.
The air humidity control device according to claim 1, wherein the first switching element or the second switching element comprises a switching body, an air inlet pipe, an air outlet pipe, a first changing body connected to the switching body a heat pipe and a second heat exchange pipe;

The switch main body has a first connection port, a second connection port, a third connection port and a fourth connection port, and the first connection port, the second connection port, the third connection port and the fourth connection port The connecting ports are respectively connected with the air inlet pipe, the air outlet pipe, the first heat exchange pipe and the second heat exchange pipe.
The air humidity control device according to claim 2, wherein,

The first connection port of the first switching part communicates with the indoor air return port through the air inlet pipe of the first switching part, and the second connection port of the first switching part passes through the outlet of the first switching part. The air duct communicates with the indoor air supply port;

The first connecting port of the second switching member communicates with the outdoor air inlet through the air inlet pipe of the second switching member, and the second connecting port of the second switching member communicates with the outdoor air inlet through the outlet pipe of the second switching member. The air duct communicates with the outdoor air outlet.
The air humidity control device according to claim 2 or 3, wherein the third connection port of the first switching element or the second switching element is connected to the first heat exchanger through the first heat exchange tube connected;

The fourth connection port of the first switching element or the second switching element communicates with the second heat exchanger through the second heat exchange tube.
The air humidity control device according to any one of claims 2 to 4, wherein,

The switching body also has a flow cavity arranged inside it, and the flow cavity communicates with the first connection port, the second connection port, the third connection port and the fourth connection port;

The first switching element or the second switching element further includes a switching valve, the switching valve is disposed in the flow chamber and configured to rotate in the flow chamber, and divides the flow chamber into Two independent, non-communicating spaces, so as to connect the first connection port of the first switching member or the second switching member with one of the third connection port or the fourth connection port, and connect the first connection port of the second switching member A switching element or the second connecting port of the second switching element communicates with the other of the third connecting port or the fourth connecting port.
The air humidity control device according to claim 5, wherein,

The switching main body includes a first side plate, a second side plate, a third side plate and a fourth side plate connected in sequence, the first side plate is set opposite to the third side plate, and the second side plate Set opposite to the fourth side plate, the second side plate and the fourth side plate have arc surfaces;

The conversion valve includes a rotating shaft and a valve plate, and the valve plate is configured to rotate at a certain angle around the rotating shaft; wherein,

During the rotation of the valve plate, the two ends of the valve plate are in contact with the arc surface of the second side plate and the arc surface of the fourth side plate respectively, so that the first switching member or The first connection port of the second switching member communicates with one of the third connection port or the fourth connection port, and connects the second connection port of the first switching member or the second switching member with the third connection port. port or the other of the fourth connection port.
The air humidity control device according to claim 5, wherein,

The switching main body includes a first side plate, a second side plate, a third side plate and a fourth side plate connected in sequence, the first side plate is set opposite to the third side plate, and the second side plate Set opposite to the fourth side plate, the second side plate and the fourth side plate have arc surfaces;

The conversion valve includes a valve section, and the valve section of the conversion valve includes a first sub-valve section and a second sub-valve section arranged crosswise;

The first sub-valve or the second sub-valve includes a plurality of vanes, each of which is configured to open or close the first sub-valve or the second sub-valve, so that the The first connection port of the first switching member or the second switching member communicates with one of the third connecting port or the fourth connecting port, and connects the second port of the first switching member or the second switching member The connection port communicates with the other of the third connection port or the fourth connection port.
The air humidity control device according to claim 5 or 6, wherein,

The switching main body further includes two opposite cover plates, the two cover plates are adjacent to the first side plate, the second side plate, the third side plate and the fourth side plate arranged and configured to cover the flow chamber;

The first connecting port and the second connecting port are respectively arranged on the first side plate and the third side plate, and the third connecting port and the fourth connecting port are arranged on the two on the same cover in the cover.
The air humidity control device according to claim 5, wherein,

The flow chamber of the switching body is cylindrical;

The conversion valve includes a rotating shaft and a valve plate, and the valve plate is configured to rotate at a certain angle around the rotating shaft; wherein,

During the rotation of the valve plate, the two ends of the valve plate are in contact with the inner side wall of the flow chamber respectively, so that the first connection port of the first switching element or the second switching element is connected to the first connecting port of the second switching element. One of the third connection port or the fourth connection port communicates, and connects the second connection port of the first switching element or the second switching element with the other of the third connection port or the fourth connection port.
The air humidity control device according to claim 5, wherein,

The flow chamber of the switching body is cylindrical;

The valve section of the conversion valve includes a first sub-valve section and a second sub-valve section arranged crosswise;

The first sub-valve or the second sub-valve includes a plurality of vanes, each of which is configured to open or close the first sub-valve or the second sub-valve, so that the The first connection port of the first switching member or the second switching member communicates with one of the third connecting port or the fourth connecting port, and connects the second port of the first switching member or the second switching member The connection port communicates with the other of the third connection port or the fourth connection port.
The air humidity control device according to claim 9 or 10, wherein:

The switching body further includes two opposite cover plates, and the two cover plates are configured to cover the flow chamber;

The first connection port and the second connection port are arranged on the same cover plate of the two cover plates, and the third connection port and the fourth connection port are arranged on the two cover plates on the other cover.
The air humidity control device according to any one of claims 1 to 11, further comprising:

A controller connected to the first switching element and the second switching element, the controller is configured to: when the air humidity control device satisfies the conversion condition, control the first switching element and the second switching element The two switching parts exchange the sub-heat exchange chamber connected with the fresh air channel with the sub-heat exchange chamber connected with the exhaust air channel, and control the switch of the evaporator to the condenser, and the switch of the condenser to the evaporator.
The air humidity control device according to claim 12, wherein the controller is further configured to: determine whether the air humidity control device satisfies the conversion condition when the air humidity control device dehumidifies;

The conversion condition includes that the adsorbent in the sub-heat exchange chamber connected with the fresh air channel enters a saturated state, or the adsorbent in the sub-heat exchange chamber communicated with the exhaust air passage enters a dry state.
The air humidity control device according to claim 13, wherein the controller is further configured to:

Obtain the moisture content d i of the fresh air delivered to the room at the beginning of a predetermined time period, and the moisture content d i+1 of the fresh air delivered to the room at the end of the predetermined time period;

Judging whether the moisture content of the fresh air delivered indoors at the end point is d i+1 , whether it is greater than or equal to the moisture content of the fresh air delivered indoors at the starting point is d i ;

In response to the fact that the moisture content of the fresh air delivered to the room at the end point is d i+1 equal to the humidity content of the fresh air delivered into the room at the start point is d i , determine the sub-heat exchange chambers that the fresh air channel communicates with The adsorbent in has reached a saturated state, and it is determined that the air humidity control device satisfies the conversion condition.
The air humidity control device according to claim 12, wherein the controller is further configured to: determine whether the air humidity control device satisfies the conversion condition when the air humidity control device is humidifying;

The conversion condition includes that the adsorbent in the sub-heat exchange chamber connected with the fresh air channel enters a dry state, or the adsorbent in the sub-heat exchange chamber communicated with the exhaust air passage enters a saturated state.
The air humidity control device according to claim 15, wherein the controller is further configured to:

Obtain the moisture content d i of the fresh air delivered to the room at the beginning of a predetermined time period, and the moisture content d i+1 of the fresh air delivered to the room at the end of the predetermined time period;

Judging whether the moisture content of the fresh air delivered to the room at the end point is d i+1 , whether it is less than or equal to the humidity content of the fresh air delivered to the room at the start point is d i ;

In response to the fact that the moisture content of the fresh air delivered to the room at the end point is d i+1 equal to the humidity content of the fresh air delivered into the room at the start point is d i , determine the sub-heat exchange chambers that the fresh air channel communicates with The adsorbent has reached a dry state, and it is determined that the air humidity control device meets the conversion conditions.
The air humidity control device according to any one of claims 13 to 16, wherein the controller is further configured to:

Acquiring the cumulative running time T of the air humidity control device running according to the current state, and when the cumulative running time T is greater than or equal to a set threshold, it is determined that the air humidity control device meets the conversion condition;

The accumulative running time T of the air humidity control device operating according to the current state is the same as the duration of the fresh air channel continuously communicating with one of the first sub-heat exchange chamber or the second sub-heat exchange chamber .
The air humidity control device according to any one of claims 12 to 17, wherein the controller is further configured to:

Obtain the operation mode of the air humidity control device, the operation mode includes a humidification mode and a dehumidification mode, the air humidity control device humidifies the indoor air in the humidification mode, and dehumidifies the indoor air in the dehumidification mode;

Determining the state of the heat exchanger in the sub-heat exchange chamber connected with the fresh air passage, and determining the state of the heat exchanger in the sub-heat exchange chamber connected with the exhaust air passage, the state of the heat exchanger includes the evaporator and condenser;

Judging whether the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air passage and the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air passage match the operating mode of the air humidity control device ;

Responding to the state of the heat exchanger in the sub-heat exchange chamber connected to the fresh air passage and the state of the heat exchanger in the sub-heat exchange chamber connected to the exhaust air passage, it is different from the operation mode of the air humidity control device. Matching, controlling the first switching member and the second switching member to exchange the heat exchange chamber connected with the fresh air passage with the heat exchange chamber connected with the exhaust air passage, or control the switching of the evaporator For the condenser, the condenser is switched to the evaporator.
The air humidity control device according to claim 12, wherein the controller is further configured to:

controlling one of the first heat exchanger and the second heat exchanger as an evaporator to dehumidify the air passing through the evaporator;

controlling the other heat exchanger of the first heat exchanger and the second heat exchanger to serve as a condenser, so as to heat the air passing through the condenser;

controlling the first connection port, the second connection port, the third connection port and the fourth connection port of the first switching member to communicate with each other, so that the dehumidified air and the heated air After being mixed at the first switching part, it is sent into the chamber.
The air humidity control device according to claim 12, wherein the controller is further configured to:

closing the first connection port and the second connection port of the second switching member;

controlling the first connection port, the second connection port, the third connection port and the fourth connection port of the second switching member to communicate with each other so that the air entering the second switching member Part of it enters the first sub-heat exchange chamber, and the other part enters the second sub-heat exchange chamber, and the air exchanged in the first sub-heat exchange chamber and the air exchanged in the second sub-heat exchange chamber The hot air is sent into the room after being mixed at the first switch.