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CN116928816B - Air humidity control device - Google Patents

Air humidity control device

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Publication number
CN116928816B
CN116928816B CN202210345032.XA CN202210345032A CN116928816B CN 116928816 B CN116928816 B CN 116928816B CN 202210345032 A CN202210345032 A CN 202210345032A CN 116928816 B CN116928816 B CN 116928816B
Authority
CN
China
Prior art keywords
air
heat exchange
exchange chamber
reversing device
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210345032.XA
Other languages
Chinese (zh)
Other versions
CN116928816A (en
Inventor
都学敏
孟建军
孙杨
朱海滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Original Assignee
Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Qingdao Hisense Hitachi Air Conditioning System Co Ltd filed Critical Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority to CN202210345032.XA priority Critical patent/CN116928816B/en
Publication of CN116928816A publication Critical patent/CN116928816A/en
Application granted granted Critical
Publication of CN116928816B publication Critical patent/CN116928816B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

本发明公开一种空气湿度调节装置，包括：外壳体，外壳体内形成有第一换热腔和第二换热腔；气流调节部，其连接在第一换热腔和第二换热腔之间；换热器，包括第一换热器以及第二换热器；压缩机，其通过四通阀分别与换热器连接，组成冷媒循环流路；排风机，用于向室外排风；送风机，用于向室内送风；控制模块，用于控制冷媒循环系统，以及控制气流调节部的开启状态，使得当室外温度高于上限温度时或者当室外温度低于下限温度时，蒸发器所在的换热腔中的部分气流进入冷凝器所在的换热腔,吸附件，用于吸附或释放水分。本调节装置通过控制气流调节部的开启状态，使得当高温除湿模式时提高冷凝器的换热效率，保证除湿效果。低温加湿模式时减少送风的冷风感。

This invention discloses an air humidity regulating device, comprising: an outer casing with a first heat exchange chamber and a second heat exchange chamber formed therein; an airflow regulating section connected between the first and second heat exchange chambers; a heat exchanger including a first heat exchanger and a second heat exchanger; a compressor connected to the heat exchangers via four-way valves to form a refrigerant circulation path; an exhaust fan for exhausting air outdoors; an air supply fan for supplying air indoors; a control module for controlling the refrigerant circulation system and controlling the opening state of the airflow regulating section, such that when the outdoor temperature is higher than the upper limit temperature or lower than the lower limit temperature, part of the airflow in the heat exchange chamber where the evaporator is located enters the heat exchange chamber where the condenser is located; and an adsorption element for adsorbing or releasing moisture. This regulating device, by controlling the opening state of the airflow regulating section, improves the heat exchange efficiency of the condenser in high-temperature dehumidification mode, ensuring dehumidification effect, and reduces the cold air sensation in low-temperature humidification mode.

Description

Air humidity regulator
Technical Field
The invention relates to the technical field of household appliances, in particular to an air humidity adjusting device.
Background
With the improvement of living standard, people pay more attention to the quality of indoor environment, and air needs to be regulated. Air conditioning, including temperature and humidity conditioning, and air quality and comfort are increasingly being appreciated by every household and business, office setting of all types.
At present, the fresh air humidifying technology is embodied in products such as a fresh air dehumidifier, a humidifier and the like, however, the dehumidifier cannot humidify in winter, and most of the existing humidifying products need complex water supply and drainage systems and the like. The existing humidifier schemes comprise wet film humidification, steam humidification and the like, and basically all the schemes can be realized only by connecting an independent humidification module with a fresh air fan and supplying water. The modules are connected through pipelines, so that the structure is complex, and the occupied space is large.
In some fresh air humidifying devices, the humidity of outdoor air is high in summer, moisture carried by outdoor fresh air is required to be absorbed by an adsorption material firstly, and then the moisture in the adsorption material is taken away by indoor exhaust air, so that the purpose that the moisture carried by the outdoor fresh air cannot enter a room is achieved. Or when humidification is carried out in winter, the moisture in the indoor exhaust air is absorbed by the adsorption material, the switching of the heat exchange cavity communicated with the fresh air channel and the exhaust air channel is controlled, and the reversing of the refrigerant is controlled, so that the humidification of the fresh air entering the room is realized. The fresh air device is integrated with the heat exchange system and the air duct reversing device, so that the device is large in size and occupies large space.
In some existing fresh air humidifying devices, a refrigerant circulation system is matched, fresh air is cooled when passing through an evaporator, vapor in the air is condensed to realize dehumidification, a device containing moisture can be heated by utilizing heat release of a condenser, vapor is released to surrounding air, and the purpose of humidifying can be realized by controlling the fresh air to pass through the condenser. The fresh air humidifying device has the advantages that the technical problems of insufficient refrigerating capacity and poor dehumidifying effect exist due to small heat exchange area of the condenser in the outdoor high-temperature working condition in summer, and the technical problems of low indoor air supply temperature and obvious cold air feeling are caused due to insufficient refrigerating capacity in the outdoor low-temperature working condition in winter.
Disclosure of Invention
The invention provides an air humidity adjusting device, which aims to solve the technical problems of poor dehumidification effect caused by insufficient heat exchange capacity of a condenser and low indoor air supply temperature during humidification when the air humidity adjusting device is used for high-temperature dehumidification in summer and low-temperature humidification in winter in the prior art.
In order to achieve the above purpose, the air humidity adjusting device of the present invention adopts the following technical scheme:
The present invention provides an air humidity adjusting apparatus, comprising:
the outdoor heat exchange device comprises an outer shell, a first heat exchange cavity and a second heat exchange cavity, wherein an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet are formed in the outer shell;
the air flow adjusting part is connected between the first heat exchange cavity and the second heat exchange cavity and can be used for communicating or disconnecting the first heat exchange cavity and the second heat exchange cavity;
the heat exchanger comprises a first heat exchanger arranged in the first heat exchange cavity and a second heat exchanger arranged in the second heat exchange cavity;
the compressors are respectively connected with the heat exchangers through four-way valves to form a refrigerant circulation flow path;
an exhaust fan for exhausting air to the outside;
a blower for blowing air into a room;
The control module is used for controlling the refrigerant circulation system and controlling the opening state of the air flow regulating part, so that when the outdoor temperature is higher than the upper limit temperature or when the outdoor temperature is lower than the lower limit temperature, part of air flow in the heat exchange cavity where the evaporator is located enters the heat exchange cavity where the condenser is located.
In some embodiments of the invention, the air humidity control apparatus further comprises:
The absorption parts are respectively arranged in the first heat exchange cavity and the second heat exchange cavity and are used for absorbing or releasing moisture;
The reversing device is provided with two connectors which are respectively a first reversing device and a second reversing device, the four connectors of the first reversing device are respectively and correspondingly connected with the outdoor air outlet, the indoor air supply outlet, the first heat exchange cavity and the second heat exchange cavity, and the four connectors of the second reversing device are respectively and correspondingly connected with the outdoor air inlet, the indoor air return opening, the first heat exchange cavity and the second heat exchange cavity;
The control module controls the communication state among the four ports of each reversing device and/or controls the operation of a refrigerant circulation system according to the air humidity adjustment mode.
In some embodiments of the present invention, the outdoor air inlet and the indoor air outlet are connected with one of the heat exchange cavities through the reversing device to form a fresh air channel, and the indoor air return inlet and the outdoor air outlet are connected with the other heat exchange cavity through the reversing device to form an air exhaust channel;
And the control module further controls the reversing device to reverse when reversing conditions are met, so that the heat exchange cavity communicated with the fresh air channel is replaced with the heat exchange cavity communicated with the exhaust channel, and the flow direction of the refrigerant is controlled to reverse.
In some embodiments of the invention, the air humidity conditioning mode includes a fresh air dehumidification mode and/or a fresh air humidification mode, wherein:
When the air humidity regulation mode is a fresh air dehumidification mode, the control module controls the refrigerant circulation system to operate and controls the reversing device to act, so that the heat exchange cavity where the evaporator is located is communicated with the fresh air channel, and the heat exchange cavity where the condenser is located is communicated with the exhaust channel;
When the air humidity adjusting mode is a fresh air humidifying mode, the control module controls the refrigerant circulating system to operate and controls the reversing device to act, the heat exchange cavity where the condenser is located is communicated with the fresh air channel, and the heat exchange cavity where the evaporator is located is communicated with the exhaust channel.
In some embodiments of the present invention, when the outdoor temperature is higher than the upper limit temperature, the outdoor temperature is in a high temperature dehumidification mode, in which the control module controls the refrigerant circulation system to operate and controls the reversing device to operate in the same manner as the fresh air dehumidification mode, and the control module further includes adjusting the opening of the air flow adjusting portion and adjusting the exhaust fan and the blower according to the difference between the outdoor temperature and the upper limit temperature, so that the exhaust amount of the exhaust fan is greater than the air supply amount of the blower, and the opening of the air flow adjusting portion is greater as the difference between the outdoor temperature and the upper limit temperature is greater.
In some embodiments of the present invention, during the high temperature dehumidification mode, the control module controls the reversing device to reverse and the refrigerant flow direction to reverse, and further controls the exhaust fan and/or the blower to slow down.
In some embodiments of the present invention, when the outdoor temperature is lower than the lower limit temperature, the low temperature humidification mode is adopted, and in this mode, the control module controls the operation of the refrigerant circulation system and controls the operation of the reversing device in the same manner as the fresh air humidification mode, and further includes obtaining a temperature difference between the air supply temperature of the indoor air supply port and the indoor temperature, and the control module adjusts the opening of the air flow adjusting portion and the air volumes of the exhaust fan and the blower according to the temperature difference, so that a ratio of the air volume entering the heat exchange cavity where the condenser is located from the heat exchange cavity where the evaporator is located to the air volume entering the heat exchange cavity where the condenser is located from the outdoor air inlet is located in a set range.
In some embodiments of the present invention, detecting an air pressure difference between the indoor air return port and the indoor air supply port, and adjusting the opening of the air flow adjusting portion in an auxiliary manner according to the air pressure difference, so that the air pressure of the indoor air supply port is greater than the air pressure of the indoor air return port and the air pressure difference is maintained within a set range.
In some embodiments of the present invention, the control module further includes a step of determining a dehumidifying capability or a humidifying capability of an adsorption member in the heat exchange cavity to which the fresh air channel is connected, and when the dehumidifying capability or the humidifying capability is reduced to a set limit value, the control module controls the reversing device to replace the heat exchange cavity to which the fresh air channel is connected, and controls the direction of the refrigerant flow to be reversed.
In some embodiments of the present invention, the step of the control module determining the dehumidifying capability or the humidifying capability of the adsorption element in the heat exchange cavity communicated with the fresh air channel includes:
Acquiring a humidity value of an adsorption piece in a heat exchange cavity communicated with the fresh air channel;
When the humidity value is larger than a first set value in the dehumidification mode, judging that the dehumidification capacity is reduced to a set limit value;
When the humidity value is smaller than a second set value in the humidification mode, judging that the humidification capacity is reduced to a set limit value;
Or alternatively
The step of judging the dehumidifying capacity or the humidifying capacity of the adsorption piece in the heat exchange cavity communicated with the fresh air channel by the control module comprises the following steps of:
in the dehumidification mode, obtaining time T required by saturation of an adsorption piece in a heat exchange cavity communicated with the fresh air channel;
Timing the operation time length of the current operation state, and judging that the dehumidification capacity is reduced to a set limit value when the operation time length is not less than T;
in a humidifying mode, acquiring the moisture content of the indoor air supply port;
Calculating the change d i+1-di of the moisture content at two adjacent moments;
When D i+1-di is less than or equal to D, the humidifying capacity is judged to be reduced to the set limit value, D is a self-defined value, and the time interval between two adjacent moments can be self-defined.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
according to the air humidity adjusting device, the air flow adjusting part is arranged between the first heat exchange cavity and the second heat exchange cavity, when the outdoor temperature is higher than the upper limit temperature or lower than the lower limit temperature, part of air flow in the heat exchange cavity where the evaporator is located enters the heat exchange cavity where the condenser by controlling the opening state of the air flow adjusting part. And when the high-temperature dehumidification mode is adopted, a part of fresh air is bypassed to the condenser side, the air quantity of the condenser side is increased, so that the heat exchange efficiency of the condenser is improved, the refrigerating capacity of a unit is increased, and the dehumidification effect is ensured. When the low-temperature humidification mode is adopted, part of indoor high-temperature wind is bypassed to the side of the condenser, the temperature of air flow passing through the condenser is increased through air mixing, the air supply temperature is further increased, and the cold air feeling of air supply is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of an air humidity conditioning apparatus according to the present invention;
FIG. 2 is a schematic view of a refrigerant cycle system in one embodiment of an air humidity conditioning apparatus in accordance with the present invention;
FIG. 3 is a schematic view of an airflow channel in state 1 of a fresh air dehumidification mode of an air humidity control apparatus according to the present invention;
FIG. 4 is a control flow diagram of one embodiment of the present invention in a dehumidification mode of an air humidity conditioning device;
FIG. 5 is a control flow chart of still another embodiment of the dehumidifying mode of the air-humidity adjusting device according to the present invention;
FIG. 6 is a control flow diagram of one embodiment of the present invention in a humidification mode of the air humidity control apparatus;
FIG. 7 is a schematic view of an indoor reversing device in an embodiment of an air humidity control apparatus according to the present invention;
FIG. 8 is a schematic view of the structure of FIG. 7 at another angle;
FIG. 9 is a schematic plan view of the structure of FIG. 7;
FIG. 10 is a schematic view of an airflow path in state 2 of the fresh air dehumidification mode of the air humidity control apparatus according to the present invention;
FIG. 11 is a schematic view of an airflow path in a high temperature dehumidification mode of an air humidity conditioner according to the present disclosure;
FIG. 12 is a schematic view of an airflow path in a fresh air humidification mode of an air humidity control apparatus according to the present invention;
fig. 13 is a schematic view of an air flow path in a low temperature humidification mode of the air humidity control apparatus according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Examples
The embodiment provides an air humidity adjusting device, as shown in fig. 1, including an outer housing 10, an outdoor air inlet OA, an outdoor air outlet EA, an indoor air supply SA and an indoor air return RA are formed on the outer housing 10, and a first heat exchange cavity 11 and a second heat exchange cavity 12 are formed in the outer housing 10.
The air conditioning device further comprises a refrigerant circulation system, wherein the refrigerant circulation system comprises at least two heat exchangers, namely a first heat exchanger 13 arranged in the first heat exchange cavity 11 and a second heat exchanger 14 arranged in the second heat exchange cavity 12.
The heat exchanger is sequentially connected with the refrigerant pipe compressor 40, the four-way valve 50 and the electronic expansion valve 60 to form a closed refrigerant circulation flow path so as to realize the conveying of the refrigerant.
The air conditioning apparatus further includes an air flow conditioning part 100 connected between the first heat exchange chamber 11 and the second heat exchange chamber 12, capable of connecting or disconnecting the first heat exchange chamber 11 and the second heat exchange chamber 12.
The air conditioning apparatus further includes an exhaust fan 70 for exhausting air to the outside through an outdoor exhaust port EA, and a blower 80 for blowing air to the inside through an indoor blowing port SA.
The control module is used for controlling the refrigerant circulation system and controlling the opening state of the air flow regulating part, so that when the outdoor temperature is higher than the upper limit temperature or when the outdoor temperature is lower than the lower limit temperature, part of air flow in the heat exchange cavity where the evaporator is located enters the heat exchange cavity where the condenser is located.
In the air humidity adjusting apparatus of this embodiment, by disposing the air flow adjusting portion 100 between the first heat exchange chamber 11 and the second heat exchange chamber 12, when the outdoor temperature is higher than the upper limit temperature or when the outdoor temperature is lower than the lower limit temperature, by controlling the open state of the air flow adjusting portion 100, a part of the air flow in the heat exchange chamber where the evaporator is located enters the heat exchange chamber where the condenser is located. And when the high-temperature dehumidification mode is adopted, a part of fresh air is bypassed to the condenser side, the air quantity of the condenser side is increased, so that the heat exchange efficiency of the condenser is improved, the refrigerating capacity of a unit is increased, and the dehumidification effect is ensured. When the low-temperature humidification mode is adopted, part of indoor high-temperature wind is bypassed to the side of the condenser, the temperature of air flow passing through the condenser is increased through air mixing, the air supply temperature is further increased, and the cold air feeling of air supply is reduced.
In some embodiments of the present invention, the exhaust fan 70 is disposed at the outdoor exhaust port EA, and the blower 80 is disposed at the indoor supply port SA.
In some embodiments of the present invention, the air humidity adjusting apparatus further includes an adsorption member, and the adsorption member is disposed in each of the first heat exchange chamber 11 and the second heat exchange chamber 12, for adsorbing or releasing moisture.
In some embodiments of the present invention, the air conditioning apparatus further includes two reversing devices, as shown in fig. 3, a first reversing device 20 and a second reversing device 30, where the first reversing device 20 has four connection ports, and the four connection ports are respectively connected to the outdoor air outlet EA, the indoor air supply port SA, the first heat exchange cavity 11 and the second heat exchange cavity 12 correspondingly. The control module is through four connector pairwise intercommunication of control first reversing arrangement 20, and then can be with outdoor air outlet EA and one of them intercommunication of first heat transfer chamber 11 and second heat transfer chamber 12, indoor supply-air outlet SA and another one intercommunication.
The second reversing device 30 also has four connection ports, which are respectively connected with the outdoor air inlet OA, the indoor air return RA, the first heat exchange cavity 11 and the second heat exchange cavity 12 correspondingly. The four connection ports of the second reversing device 30 can be controlled to be communicated with each other, so that the outdoor air inlet OA can be communicated with one of the first heat exchange cavity 11 and the second heat exchange cavity 12, and the indoor air return RA is communicated with the other.
The control module controls the communication state among the four ports of each reversing device and/or controls the operation of the refrigerant circulation system according to the air humidity adjustment mode.
In some embodiments, the indoor air supply port SA and the indoor air return port RA are respectively in communication with an indoor environment, and the outdoor air intake port OA and the outdoor air exhaust port EA are respectively in communication with an outdoor environment.
The refrigerant circulation system can realize the exchange of the refrigerating and heating functions of the two heat exchange cavities by changing the flow direction of the refrigerant, and simultaneously, the communication state between the respective connectors is controlled by matching the first reversing device 20 and the second reversing device 30 so as to realize that the air fed into the room through the indoor air supply port SA accords with an air humidity regulation mode.
The control module can control the four-way valve to change direction, wherein the first heat exchanger 13 is used as an evaporator, the second heat exchanger 14 is used as a condenser, or the first heat exchanger 13 is used as a condenser, and the second heat exchanger 14 is used as an evaporator.
The control module can also control the connection state of the four connection ports of the first reversing device 20 and the second reversing device 30 to realize that the indoor air supply port SA is communicated with the first heat exchange cavity 11 and the outdoor air outlet EA is communicated with the second heat exchange cavity 12, or that the indoor air supply port SA is communicated with the second heat exchange cavity 12 and the outdoor air outlet EA is communicated with the first heat exchange cavity 11.
There are various combinations of the above.
In some embodiments of the present invention, the outdoor air inlet OA and the indoor air outlet SA are connected to one of the heat exchange chambers through a reversing device to form a fresh air channel, and the indoor air return RA and the outdoor air outlet EA are connected to the other heat exchange chamber through a reversing device to form an air exhaust channel.
The air humidity adjustment mode at least comprises a fresh air dehumidification mode and a fresh air humidification mode. The principle of the air humidity control device is that the control module judges and identifies the air humidity control mode to be executed currently, controls the operation of a refrigerant circulation system and/or controls the action of a reversing device, and meets the following conditions:
When the air humidity adjusting mode is a fresh air dehumidifying mode, the control module controls the operation of the refrigerant circulating system, the reversing device is controlled to communicate the fresh air channel with the heat exchange cavity where the evaporator is located, and the air exhaust channel is communicated with the heat exchange cavity where the condenser is located. The fresh air channel is used for conveying fresh air indoors, when the fresh air introduced from the outside passes through the evaporator through the fresh air channel, moisture in the fresh air is absorbed by a refrigerant in the evaporator, and condensed water is absorbed by an adsorption piece in the heat exchange cavity, so that the aim of dehumidification is fulfilled.
When the humidity regulation mode is a fresh air humidification mode, the control module controls the operation of the refrigerant circulation system, the reversing device is controlled to communicate the fresh air channel with the heat exchange cavity where the condenser is located, and the air exhaust channel is communicated with the heat exchange cavity where the evaporator is located. When fresh air introduced from the open air passes through the condenser through the fresh air channel, the condenser heats the adsorption piece close to the condenser, and moisture in the adsorption piece is evaporated and released into the entering fresh air, so that the indoor humidification purpose is realized.
When the humidity control device is initially operated, the control module can control the reversing device and/or the refrigerant circulation system to operate according to the initial mode so as to meet the requirements. Since the adsorption member has a limited capacity to adsorb moisture, the adsorption member has a corresponding limited capacity to humidify air. In some embodiments of the present invention, the control module further includes controlling the reversing device to reverse when the reversing condition is satisfied, so that the heat exchange cavity communicated with the fresh air channel is replaced with the heat exchange cavity communicated with the exhaust channel, and controlling the direction of the refrigerant flow to reverse.
In some embodiments of the present invention, when the outdoor temperature is higher than the upper limit temperature, the outdoor temperature is in a high temperature dehumidification mode, and in this mode, the control module controls the operation of the refrigerant circulation system and controls the operation of the reversing device in the same manner as in the fresh air dehumidification mode, and the control module further includes adjusting the opening of the airflow adjusting portion and adjusting the exhaust fan and the blower according to the difference between the outdoor temperature and the upper limit temperature, so that the exhaust amount of the exhaust fan is greater than the air supply amount of the blower.
The rotating speed is increased through the exhaust fan, so that the air quantity of the exhaust fan is larger than that of the blower, and because the two paths of air channels have the same resistance, and because the air quantity of the exhaust fan is large, the negative pressure of the exhaust air channel is larger than that of the fresh air channel at the moment, and therefore, at the air flow regulating part 100, part of fresh air in the fresh air channel always flows to the exhaust air channel through the air flow regulating part 100.
In some embodiments of the present invention, the larger the difference between the outdoor temperature and the upper limit temperature, the larger the opening of the airflow adjusting portion 100 is reflected, so that more fresh air enters the heat exchange cavity where the condenser is located through the airflow adjusting portion 100.
In some embodiments of the present invention, the opening degree of the airflow adjusting portion 100 may be adjusted (for example, may be divided into 1 to n steps), and the opening degree of the airflow adjusting portion 100 is adjusted according to the difference between the outdoor temperature and the upper limit temperature, as shown in table 1.
Difference grade N1 N2 N3
Difference value ≥3 ≥6 ≥10
Exhaust fan Air volume lifting B1 (30%) Air volume lifting B1 (60%) Air volume lifting B1 (100%)
Opening degree of air flow regulating part A1(30%) A2(60%) A3(100%)
TABLE 1
In summer dehumidification, as shown in fig. 4, the machine is started to judge whether the outdoor temperature is higher than the upper limit temperature, if not, the machine enters a fresh air dehumidification mode, and if so, the machine enters a high temperature dehumidification mode. Then judging the difference grade of the outdoor temperature and the upper limit temperature, for example, the difference is more than or equal to 3 ℃, then N1 grade, the speed of the exhaust fan is regulated, the air quantity is increased by Bi, for example, B1 grade, and then the air flow regulating part 100 is opened by a corresponding angle, for example, A1. The corresponding relation between the air quantity lifting proportion of the exhaust fan and the opening of the air valve is shown in table 1. And then returning at intervals of set time, and re-judging once according to the outdoor temperature.
The air flow adjusting part 100 may be implemented using an air valve.
In some embodiments of the present invention, during the high temperature dehumidification mode, the control module controls the reversing device to reverse and the refrigerant flow direction to reverse, and further includes controlling the exhaust fan and/or the blower to reduce speed. So as to reduce the pressure difference of the two sides of the blade of the airflow adjusting part 100, then control the motor of the two reversing devices to start, realize reversing, and then restore the corresponding rotating speeds of the exhaust fan and the blower.
After the airflow adjusting part 100 is opened, the air quantity at the condenser side is composed of two parts, one part is from bypass fresh air, the other part is from indoor exhaust of the indoor air return port RA, the two paths of air resistances are different, and the distribution proportion of the two paths of air quantity is also changed along with the change of the opening angle of the airflow adjusting part 100, so that the exhaust quantity of the indoor air return port RA is uncertain, and under the condition that the fresh air quantity fed by the indoor air supply port SA is fixed, the indoor air return quantity is possibly larger than the fresh air quantity, so that the indoor negative pressure is caused, or the fresh air quantity is obviously larger than the exhaust quantity, so that the indoor positive pressure is caused. In either case, a bad experience is provided to the user.
In order to solve the above-mentioned problems, some embodiments of the present invention further include detecting an air pressure difference between the indoor air return port RA and the indoor air supply port SA, and adjusting the opening degree of the air flow adjusting portion 100 according to the air pressure difference, so that the air pressure of the indoor air supply port SA is greater than the air pressure of the indoor air return port RA and the air pressure difference is maintained within a set range.
In some embodiments of the present invention, a differential pressure sensor 101 is disposed at the indoor air return port RA to ensure that the air output of the indoor air return port RA is equal to the air output of the indoor air supply port SA or the indoor pressure is slightly positive (the air output of the indoor air supply port SA is slightly greater than the indoor air return port RA), so as to ensure that the indoor pressure meets the requirements.
When the outdoor temperature is low in winter, for example, -15 ℃, the heating capacity is insufficient, which is also a problem for all air conditioners. At this time, the temperature of the treated fresh air is lower, for example, the outdoor temperature is lower than-15 ℃, and the temperature of the treated fresh air is 15 ℃, so that obvious cold air feel exists. The temperature in front of the condenser is raised through mixing, so that the temperature of the treated fresh air can meet the requirement.
In some embodiments of the present invention, as shown in FIG. 5, the magnitude relation between the detection value Pi of the differential pressure sensor and the preset value P0 is determined
① Pi-P0> C, wherein RA exhaust amount is obviously larger than SA, the air flow regulating part is turned down by 5%, the air flow regulating part returns every Y minutes, and the magnitude relation between the detection value Pi of the differential pressure sensor and the preset value P0 is re-judged;
② The magnitude relation between the detection value Pi of the differential pressure sensor and the preset value P0 is re-judged by returning every Y minutes, wherein the Pi-P0 is 0< and the RA exhaust amount is slightly larger than SA, and the air flow regulating part is turned down by 1 percent;
③ The magnitude relation between the detection value Pi of the differential pressure sensor and a preset value P0 is re-judged by returning every Y minutes;
④ Pi-P0< -C, RA exhaust amount is obviously smaller than SA, the air flow regulating part is opened by 1%, the air flow regulating part returns every Y minutes, and the magnitude relation between the detection value Pi of the differential pressure sensor and the preset value P0 is judged again.
In some embodiments of the present invention, when the outdoor temperature is lower than the lower limit temperature, the mode is a low temperature humidification mode, in which the mode of the control module controlling the operation of the refrigerant circulation system and controlling the operation of the reversing device is the same as the fresh air humidification mode, and the method further comprises obtaining a temperature difference between the air supply temperature of the indoor air supply port and the indoor temperature, and the control module adjusts the opening of the air flow adjusting part and the air volumes of the exhaust fan and the blower according to the temperature difference, so that the ratio of the air volume entering the heat exchange cavity where the condenser is located from the heat exchange cavity where the evaporator is located to the air volume entering the heat exchange cavity where the condenser is located from the outdoor air inlet is located is within a set range.
When humidification is carried out in winter, as shown in fig. 6, the machine is started, whether the outdoor temperature is lower than the lower limit temperature (for example, -5 ℃) is judged, if not, a fresh air humidification mode is entered, and if so, a low temperature humidification mode is entered. The difference between the air supply temperature Tsa of the indoor air supply port SA and the indoor temperature Tin is calculated, and the air mixing proportion, the air quantity of the air feeder and the air quantity of the exhaust fan are determined according to the difference, as shown in the following table 2. For example, tin-tsa=3°, the mixing ratio is 30%, the blower air volume is 1.3 times the set air volume at this time, the exhaust fan air volume is 70% of the set air volume, and the initial opening angle of the air flow regulator 100 is α1 °. Then the blower and the exhaust fan are regulated according to the corresponding air quantity, and the air flow regulating part 100 is started according to the corresponding angle, and check comparison is carried out.
Tin-Tsa ≤0°C ≥3°C ≥5°C ≥7°C
Mixing ratio (QRA/QOA) 0 30% 50% 70%
Air quantity of blower According to the set air quantity According to 1.3 times of the set air quantity According to 1.5 times of the set air quantity According to 1.7 times of the set air quantity
Air quantity of exhaust fan According to the set air quantity Set 0.7 times of air quantity Set 0.5 times of air quantity Setting 0.3 times of air quantity
Air flow adjusting part OFF Opening alpha 1 DEG Opening alpha 2 DEG Opening alpha 3 DEG
TABLE 2
In order to prevent the situation that the air return quantity is more than the fresh air quantity and the indoor negative pressure is caused or the fresh air quantity is obviously more than the air exhaust quantity and the indoor positive pressure is caused during the low-temperature humidification mode, the method further comprises detecting the air pressure difference between the indoor air return port RA and the indoor air supply port SA and adjusting the opening degree of the air flow adjusting part 100 in an auxiliary mode according to the air pressure difference, so that the air pressure of the indoor air supply port SA is more than the air pressure of the indoor air return port RA and the air pressure difference is kept in a set range.
In some embodiments of the present invention, the detection value of the differential pressure sensor 101 is used to check whether the exhaust air quantity at the indoor air return port RA satisfies 90% sa≤ra≤sa, if yes, the opening angle of the air flow regulating portion 100 is unchanged, if no, the air flow regulating portion 100 performs angle adjustment, when the air quantity of the indoor air supply port SA is greater than +10% of the exhaust air quantity of the indoor air return port RA, under the condition that the rotational speed of the exhaust fan is unchanged, the opening degree of the air flow regulating portion 100 is increased, and more exhaust air enters the fresh air channel through the air flow regulating portion 100, so that the exhaust air quantity at the indoor air return port RA is increased.
If the air supply amount of the indoor air supply port SA is smaller than the air exhaust amount of the indoor air return port RA, the fresh air amount is smaller than the air exhaust amount, and the air exhaust amount is larger at this time in order to prevent obvious negative pressure in the room, the opening degree of the air flow regulating part 100 needs to be reduced until 90% SA is smaller than or equal to RA and smaller than SA is satisfied.
The control module further comprises a step of judging the dehumidification capacity (in a dehumidification mode) or the humidification capacity (in a humidification mode) of the adsorption piece in the heat exchange cavity communicated with the fresh air channel, and when the dehumidification capacity or the humidification capacity is reduced to a set limit value, the control reversing device is used for replacing the heat exchange cavity communicated with the fresh air channel and controlling the flow direction of the refrigerant to be reversed.
In some embodiments of the present invention, the step of the control module determining the dehumidifying capability or the humidifying capability of the adsorption element in the heat exchange cavity communicated with the fresh air channel includes:
acquiring a humidity value of an adsorption piece in a heat exchange cavity communicated with a fresh air channel;
when the humidity value is larger than a first set value in the dehumidification mode, judging that the dehumidification capacity is reduced to a set limit value;
in the humidification mode, when the humidity value is smaller than the second set value, it is determined that the humidification capacity is reduced to the set limit value.
The heat exchange cavity communicated with the fresh air channel is controlled to be switched by directly obtaining the humidity value of the absorption part, so that the control precision is higher.
Of course, the control method is not limited to the above. In some embodiments of the present invention, the step of the control module determining the dehumidifying capability or the humidifying capability of the adsorption element in the heat exchange cavity communicated with the fresh air channel includes:
In the dehumidification mode, obtaining time T required by saturation of an adsorption piece in a heat exchange cavity communicated with a fresh air channel;
And (3) timing the operation time length of the current operation state, and judging that the dehumidification capacity is reduced to the set limit value when the operation time length is not less than T.
The control switching is performed by accumulating the operation time, so that the control logic is simpler and the response speed is faster.
In the humidification mode, acquiring the moisture content of the indoor air supply port;
Calculating the change d i+1-di of the moisture content at two adjacent moments;
When D i+1-di is less than or equal to D, the humidifying capacity is judged to be reduced to the set limit value, D is a self-defined value, and the time interval between two adjacent moments can be self-defined.
The control center judges the change of the moisture content at two adjacent moments (such as every minute), if D i+1-di is less than or equal to D, the change of the moisture content of the supplied air is smaller and is close to stability, and meanwhile, the control center indicates that the moisture in the adsorption material on the surface of the condenser in the fresh air channel is about to be completely released, then the control module sends a reversing instruction to the four-way valve, the four-way valve finishes reversing, and the states of the first heat exchanger 13 and the second heat exchanger 14 are changed (namely, the evaporator changes into the condenser, and the condenser changes into the evaporator). Meanwhile, the wind valve positions of the first reversing device 20 and the second reversing device 30 are changed, so that one-time humidification channel change is completed, and uninterrupted humidification in winter is realized.
In some embodiments of the present invention, in the dehumidification mode, the method for obtaining the time T required for saturation of the adsorption element in the heat exchange cavity communicated with the fresh air channel comprises calculating the time required for saturation of the adsorption material at the evaporator side according to the dehumidification speed, and controlling the four-way valve and the switching device to operate according to the time. The dehumidification rate is calculated according to the indoor and outdoor moisture content, namely the weight of the adsorbed moisture in each second。
Specifically, the method comprises obtaining the weight of moisture which can be contained in the absorption member;
Calculating the dehumidifying speed:
;
Calculating T:
;
wherein G is the fresh air quantity delivered by the air conditioning device, dw is the moisture content of outdoor air, and dn is the moisture content of indoor air.
Example two
In some embodiments of the present invention, the reversing device has a valve chamber in communication with each connection port, and the reversing device further includes a valve plate and a driving device, and in this embodiment, the first reversing device 20 is described as an example.
As shown in fig. 3, the four connection ports of the first reversing device 20 are a first connection port 201, a second connection port 202, a third connection port 203, and a fourth connection port 204, respectively, which are respectively communicated with the valve chamber of the first reversing device 20.
The valve cavity of the first reversing device 20 is provided with a valve plate 205, and the driving device 206 is controlled by the control module and is used for driving the valve plate 205 to rotate.
When the valve plate 205 rotates to different positions, the valve cavity can be blocked into two independent spaces which are not communicated with each other, and the two spaces are used for communicating the first connecting port 201 and the third connecting port 203 with the same space, and communicating the second connecting port 202 and the fourth connecting port 204 with another space.
Or the first connection port 201 and the second connection port 202 are communicated with the same space, and the third connection port 203 and the fourth connection port 204 are communicated with another space. Two connection ports communicating with the same space may communicate with each other.
In some embodiments of the present invention, the first connection port 201 of the first reversing device 20 is connected to the indoor air supply port SA, the fourth connection port 204 of the first reversing device is connected to the outdoor air outlet EA, the second connection port 202 of the first reversing device is connected to one of the first heat exchange chamber 11 and the second heat exchange chamber 12, the third connection port 203 of the first reversing device is connected to the other of the first heat exchange chamber 11 and the second heat exchange chamber 12, and the control module controls the communication state between the four connection ports of the first reversing device, so as to communicate the first connection port 201 of the first reversing device with the second connection port 202 thereof, communicate the fourth connection port 204 of the first reversing device with the third connection port 203 thereof, or communicate the first connection port 201 of the first reversing device with the third connection port 203 thereof, and communicate the fourth connection port 204 of the first reversing device with the second connection port 202 thereof.
The first connection port 301 of the second reversing device 30 is connected with the outdoor air inlet OA, the fourth connection port 304 of the second reversing device is connected with the indoor air return RA, the second connection port 302 of the second reversing device is connected with one of the first heat exchange cavity 11 and the second heat exchange cavity 12, the third connection port 303 of the second reversing device is connected with the other of the first heat exchange cavity 11 and the second heat exchange cavity 12, and the control module controls the communication state between the four connection ports of the second reversing device, so as to communicate the first connection port 301 of the second reversing device with the second connection port 302 thereof, communicate the fourth connection port 304 of the second reversing device with the third connection port 303 thereof, or communicate the first connection port 301 of the second reversing device with the third connection port 303 thereof, and communicate the fourth connection port 304 of the second reversing device with the second connection port 302 thereof.
A baffle structure is arranged between the first heat exchange cavity 11 and the second heat exchange cavity 12, and the installation direction of the baffle structure can be horizontally arranged, so that the first heat exchanger 13 and the second heat exchanger 14 are arranged up and down.
Of course, the installation direction of the baffle structure is not limited to horizontal arrangement, and the baffle structure may be arranged in the heat exchange cavity in the vertical direction or may be arranged in the heat exchange cavity in an angle, and the first heat exchanger 13 and the second heat exchanger 14 are respectively located at two sides of the baffle structure.
The air flow regulating portion 100 is provided on the barrier structure.
The positions of the four connection ports on the first reversing device 20 can be determined according to the condition of the internal space of the outer housing 10. The four connection ports can face 4 different directions respectively, and the directions of the partial connection ports can be the same.
In some embodiments of the present invention, the reversing device includes two opposite side panels and a front panel, where two connection ports are formed on the opposite side panels, and are respectively a first connection port and a fourth connection port, and the other two connection ports are formed on the front panel, and are respectively a second connection port and a third connection port, and a rotation axis of the valve plate is located between the second connection port and the third connection port, so that the first connection port can be communicated with the second connection port and the third connection port can be communicated with the fourth connection port, or the first connection port can be communicated with the third connection port and the second connection port can be communicated with the fourth connection port.
As shown in fig. 7 and 8, the first reversing device 20 in this embodiment is illustrated as an example.
The first reversing device 20 includes two opposite side panels 207 and 208 and a front panel 209, wherein two connectors are formed on the two opposite side panels 207 and 208, respectively, a first connection port 201 and a fourth connection port 204, and the other two connectors are formed on the front panel 209, respectively, a second connection port 202 and a third connection port 203, and a rotation axis of the valve plate 205 is located between the second connection port 202 and the third connection port 203, so that the first connection port 201 can be communicated with the second connection port 202 and the third connection port 203 can be communicated with the fourth connection port 204, or the first connection port 201 can be communicated with the third connection port 203 and the second connection port 202 can be communicated with the fourth connection port 204.
In some embodiments, the two side panels 207, 208 disposed opposite each other are cambered surfaces, and are perpendicular to the front panel 209 with respect to the axial direction of the cambered surfaces. The third connection port 203 is located above the second connection port 202. Of course, the third connection port 203 may also be located below the second connection port 202.
As shown in fig. 9, the rotation axis of the valve plate 205 is located at the center of the valve plate 205 and is disposed coaxially with the two cambered surfaces. The valve plate 205 rotates along the arc surface, and when rotating to the position I, the first connection port 201 is communicated with the third connection port 203, and the second connection port 202 is communicated with the fourth connection port 204. When the valve plate 205 rotates to the position II, the first connection port 201 is communicated with the second connection port 202, and the third connection port 203 is communicated with the fourth connection port 204.
The two cambered surfaces can be oppositely arranged in the horizontal direction as shown in fig. 9, and can also be oppositely arranged in the vertical direction. When the width of the valve cavity in the horizontal direction is enough, a scheme that two cambered surfaces are oppositely arranged in the horizontal direction can be adopted, and the space in the vertical direction can be saved. When the valve cavity is high enough in the vertical direction, the scheme that two cambered surfaces are oppositely arranged in the vertical direction can be adopted, and the space in the horizontal direction can be saved. And the method can be specifically determined according to actual conditions.
The structure of the second reversing device 30 is similar to that of the first reversing device 20, and is not described herein.
Generally, when the fresh air device is powered on and started, a user manually controls switching or the system automatically judges that reversing needs to be executed, the first reversing device and/or the second reversing device are controlled.
The absorption member is arranged inside the heat exchanger or coated on the surface of the heat exchanger in the form of block, sheet, net-shaped wrapped particles and the like.
< Fresh air dehumidification mode >
And in the fresh air dehumidification mode, the fresh air channel is communicated with the heat exchange cavity where the evaporator is located, and the exhaust channel is communicated with the heat exchange cavity where the condenser is located. In this embodiment, the third connection port 203 of the first reversing device shown in fig. 3 is still in communication with the first heat exchange cavity 11 where the first heat exchanger 13 is located, the second connection port 202 of the first reversing device is in communication with the second heat exchange cavity 12 where the second heat exchanger 14 is located, and the first heat exchanger 13 is used as an evaporator, and the second heat exchanger 14 is used as a condenser for illustration.
At this time, the first reversing device 20 is controlled to communicate the first connection port 201 with the third connection port 203, and the second connection port 202 is communicated with the fourth connection port 204. The third reversing device is controlled to communicate the first connecting port 301 with the third connecting port 303, and the second connecting port 302 is communicated with the fourth connecting port 304.
The fresh air channel is composed of an outdoor air inlet OA, a first connection port 301 of a second reversing device, a third connection port 303 of the second reversing device, a first heat exchange cavity 11 (an internal heat exchanger is an evaporator), a third connection port 203 of the first reversing device, a first connection port 201 of the first reversing device and an indoor air supply port SA.
The refrigerant in the first heat exchanger 13 (evaporator) absorbs heat in the air, and when the air in the fresh air channel flows through the evaporator, moisture in the air condenses into water droplets, which are absorbed by the absorbing member of the evaporator, and the air entering from the outside is dried and then is conveyed to the inside through the indoor air supply opening SA.
The exhaust channel is composed of an indoor return air inlet RA, a fourth connection port 304 of a second reversing device, a second connection port 302 of the second reversing device, a second heat exchange cavity 12 (the internal heat exchanger is a condenser), a second connection port 202 of a first reversing device, a fourth connection port 204 of the first reversing device and an outdoor exhaust outlet EA.
The refrigerant in the second heat exchanger 14 (condenser) releases heat to the ambient air, and when the air in the exhaust passage flows through the condenser, moisture in the suction member of the condenser is evaporated, released to the air, and is brought out to the outside by the air flow discharged to the outside direction.
When the adsorption member disposed near the first heat exchanger 13 (evaporator) reaches saturation, the adsorption member disposed near the second heat exchanger 14 (condenser) is dried at the same time, as shown in fig. 10, the fresh air channel passes through the second heat exchange chamber 12 by controlling the reversing device to reverse, the air exhaust channel passes through the first heat exchange chamber 11, and the refrigerant is controlled to reverse, so that the second heat exchanger 14 is the evaporator, and the first heat exchanger 13 is the condenser. The wind entering from the outside is continuously dehumidified and dried by the adsorbing member adjacent to the second heat exchanger 14, and then is sent into the room.
The fresh air channel after the direction change is as follows:
the outdoor air inlet OA-the first connection port 301 of the second reversing device-the second connection port 302 of the second reversing device-the second heat exchange chamber 12 (the internal heat exchanger is an evaporator) -the second connection port 202 of the first reversing device-the first connection port 201 of the first reversing device-the indoor air supply port SA.
The exhaust channel after the direction change is:
the indoor return air inlet RA-the fourth connection port 304 of the second reversing device-the third connection port 303 of the second reversing device-the first heat exchange chamber 11 (the internal heat exchanger is a condenser) -the third connection port 203 of the first reversing device-the fourth connection port 204 of the first reversing device-the outdoor exhaust outlet EA.
< High temperature dehumidification mode >
As shown in fig. 11, the air flow regulating portion 100 is opened, and part of the fresh air in the fresh air passage enters the exhaust passage through the air flow regulating portion 100.
< Fresh air humidification mode >
In the humidification mode, the fresh air channel is communicated with the heat exchange cavity where the condenser is located, and the exhaust channel is communicated with the heat exchange cavity where the evaporator is located. That is, the communication mode of the fresh air channel in the mode is the same as that of the heating mode. As shown in fig. 12, in this embodiment, the first heat exchanger 13 is still taken as an evaporator, and the second heat exchanger 14 is taken as a condenser as an example. The first connection port 301 of the second reversing device is controlled to be communicated with the second connection port 302 of the second reversing device, the third connection port 303 of the second reversing device is controlled to be communicated with the fourth connection port 304 of the second reversing device, the third connection port 303 of the second reversing device is controlled to be communicated with the first heat exchange cavity 11 where the first heat exchanger 13 is located, and the second connection port 302 of the second reversing device is controlled to be communicated with the second heat exchange cavity 12 where the second heat exchanger 14 is located.
The first connection port 201 of the first reversing device is communicated with the second connection port 202 thereof, and the third connection port 203 of the first reversing device is communicated with the fourth connection port 204 thereof. The third connection port 203 of the first reversing device is communicated with the first heat exchange cavity 11 where the first heat exchanger 13 is located, and the second connection port 202 of the first reversing device is communicated with the second heat exchange cavity 12 where the second heat exchanger 14 is located.
The fresh air channel is formed by:
The outdoor air inlet OA is connected with the first connecting port 301 of the second reversing device, the second connecting port 302 of the second reversing device is connected with the second heat exchange cavity 12 (the internal heat exchanger is a condenser), the second connecting port 202 of the first reversing device is connected with the first connecting port 201 of the first reversing device, and the indoor air supply outlet SA is connected with the first reversing device.
The refrigerant in the second heat exchanger 14 (condenser) releases heat to the ambient air, and when the air in the fresh air channel flows through the condenser, moisture in the absorbing part of the condenser is evaporated, released into the air, and is delivered into the room along with the air flow to humidify the room.
The exhaust channel is:
The indoor return air inlet RA-the fourth connection port 304 of the second reversing device-the third connection port 303 of the second reversing device-the first heat exchange chamber 11 (the internal heat exchanger is an evaporator) -the third connection port 203 of the first reversing device-the fourth connection port 204 of the first reversing device-the outdoor exhaust outlet EA.
The refrigerant in the first heat exchanger 13 (evaporator) absorbs heat in the air, and when the air in the air exhaust passage flows through the evaporator, moisture in the air condenses into water droplets, which are absorbed by the absorbing member of the evaporator, and the air flow entering from the outside is dried and then discharged to the outside through the outdoor air outlet EA.
When the adsorption piece close to the second heat exchanger 14 (condenser) is dried, the capacity of releasing moisture is lost, and the reversing device is controlled to reverse at the moment, so that the fresh air channel is communicated with the first heat exchange cavity 11, meanwhile, the first heat exchanger 13 is switched to serve as a condenser, and the adsorption piece close to the first heat exchanger 13 continuously releases moisture into fresh air.
< Low temperature humidification mode >
As shown in fig. 13, part of the exhaust air enters the fresh air passage through the air flow regulating part 100.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (8)

1.一种空气湿度调节装置，其特征在于，包括：1. An air humidity regulating device, characterized in that it comprises: 外壳体，其上形成有室外进风口、室外排风口、室内送风口以及室内回风口，所述外壳体内形成有第一换热腔和第二换热腔；An outer shell has an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet, and an indoor return air outlet formed thereon. A first heat exchange chamber and a second heat exchange chamber are formed inside the outer shell. 气流调节部，其连接在所述第一换热腔和第二换热腔之间，能够将所述第一换热腔和第二换热腔连通或者断开连通；An airflow regulating unit is connected between the first heat exchange chamber and the second heat exchange chamber, and can connect or disconnect the first heat exchange chamber and the second heat exchange chamber. 换热器，包括设置在所述第一换热腔中的第一换热器以及设置在所述第二换热腔中的第二换热器；The heat exchanger includes a first heat exchanger disposed in the first heat exchange chamber and a second heat exchanger disposed in the second heat exchange chamber; 压缩机，其通过四通阀分别与所述换热器连接，组成冷媒循环流路；The compressor is connected to the heat exchanger via a four-way valve to form a refrigerant circulation path. 排风机，用于向室外排风；Exhaust fans are used to exhaust air outdoors. 送风机，用于向室内送风；A blower is used to supply air into a room; 控制模块，用于控制冷媒循环系统，以及控制所述气流调节部的开启状态，使得当室外温度高于上限温度时或者当室外温度低于下限温度时，蒸发器所在的换热腔中的部分气流进入冷凝器所在的换热腔;The control module is used to control the refrigerant circulation system and the opening state of the airflow regulating section, so that when the outdoor temperature is higher than the upper limit temperature or when the outdoor temperature is lower than the lower limit temperature, part of the airflow in the heat exchange chamber where the evaporator is located enters the heat exchange chamber where the condenser is located; 吸附件，所述第一换热腔以及所述第二换热腔中分别设置有吸附件，用于吸附或释放水分；Adsorption elements are provided in the first heat exchange chamber and the second heat exchange chamber respectively, for adsorbing or releasing moisture; 当室外温度高于上限温度时，为高温除湿模式，所述控制模块还包括根据室外温度与所述上限温度的差值调节所述气流调节部的开度以及调节所述排风机和送风机，使得所述排风机的排风量大于所述送风机的送风量，室外温度与所述上限温度的差值越大，所述气流调节部的开度越大；When the outdoor temperature is higher than the upper limit temperature, it is in high temperature dehumidification mode. The control module also includes adjusting the opening of the airflow regulating section and adjusting the exhaust fan and the supply fan according to the difference between the outdoor temperature and the upper limit temperature, so that the exhaust volume of the exhaust fan is greater than the supply volume of the supply fan. The greater the difference between the outdoor temperature and the upper limit temperature, the greater the opening of the airflow regulating section. 所述空气湿度调节装置还包括换向装置；The air humidity regulating device also includes a reversing device; 所述室外进风口、室内送风口通过所述换向装置与其中一个换热腔连接组成新风通道，所述室内回风口、室外排风口通过所述换向装置与另外一个换热腔连接组成排风通道；The outdoor air inlet and indoor air outlet are connected to one of the heat exchange chambers through the reversing device to form a fresh air channel, and the indoor return air outlet and outdoor exhaust air outlet are connected to another heat exchange chamber through the reversing device to form an exhaust air channel. 高温除湿模式时，所述控制模块控制所述换向装置换向和冷媒流向换向之前，还包括控制所述排风机和/或送风机降速，然后控制两个换向装置的电机启动，实现换向，接着排风机和送风机恢复转速；In the high temperature dehumidification mode, before the control module controls the reversing device to reverse the direction and the refrigerant flow to reverse the direction, it also includes controlling the exhaust fan and/or the supply fan to reduce the speed, and then controlling the motors of the two reversing devices to start to realize the reversal, and then the exhaust fan and the supply fan to resume their speed. 所述控制模块还包括当满足换向条件时，控制所述换向装置换向，使得所述新风通道所连通的换热腔与排风通道所连通的换热腔更换，以及控制冷媒流向换向。The control module also includes controlling the reversing device to reverse when the reversing conditions are met, so that the heat exchange chamber connected to the fresh air duct is replaced by the heat exchange chamber connected to the exhaust air duct, and controlling the refrigerant flow direction to reverse. 2.根据权利要求1所述的空气湿度调节装置，其特征在于，2. The air humidity regulating device according to claim 1, characterized in that, 换向装置具有两个，分别为第一换向装置和第二换向装置，第一换向装置的四个连接口分别与室外排风口、室内送风口、第一换热腔和第二换热腔对应连接，第二换向装置的四个连接口分别与室外进风口、室内回风口、第一换热腔和第二换热腔对应连接；There are two reversing devices, namely a first reversing device and a second reversing device. The four connection ports of the first reversing device are respectively connected to the outdoor exhaust vent, the indoor air supply vent, the first heat exchange chamber and the second heat exchange chamber. The four connection ports of the second reversing device are respectively connected to the outdoor air inlet, the indoor return air vent, the first heat exchange chamber and the second heat exchange chamber. 所述控制模块根据空气湿度调节模式控制各换向装置的四个口之间的连通状态和控制冷媒循环系统运行。The control module controls the connection status between the four ports of each reversing device and controls the operation of the refrigerant circulation system according to the air humidity adjustment mode. 3.根据权利要求2所述的空气湿度调节装置，其特征在于，所述空气湿度调节模式包括新风除湿模式和/或新风加湿模式，其中：3. The air humidity regulating device according to claim 2, characterized in that the air humidity regulating mode includes a fresh air dehumidification mode and/or a fresh air humidification mode, wherein: 当所述空气湿度调节模式为新风除湿模式时，所述控制模块控制冷媒循环系统运行，以及控制所述换向装置动作，满足蒸发器所在的换热腔与所述新风通道连通，且冷凝器所在的换热腔与所述排风通道连通；When the air humidity adjustment mode is the fresh air dehumidification mode, the control module controls the operation of the refrigerant circulation system and controls the action of the reversing device to ensure that the heat exchange chamber where the evaporator is located is connected to the fresh air channel, and the heat exchange chamber where the condenser is located is connected to the exhaust channel. 当所述空气湿度调节模式为新风加湿模式时，所述控制模块控制冷媒循环系统运行，以及控制所述换向装置动作，满足冷凝器所在的换热腔与所述新风通道连通，且蒸发器所在的换热腔与所述排风通道连通。When the air humidity adjustment mode is the fresh air humidification mode, the control module controls the operation of the refrigerant circulation system and controls the operation of the reversing device to ensure that the heat exchange chamber where the condenser is located is connected to the fresh air channel, and the heat exchange chamber where the evaporator is located is connected to the exhaust channel. 4.根据权利要求3所述的空气湿度调节装置，其特征在于，4. The air humidity regulating device according to claim 3, characterized in that, 高温除湿模式下所述控制模块控制冷媒循环系统运行以及控制所述换向装置动作的方式与所述新风除湿模式相同。In the high-temperature dehumidification mode, the control module controls the operation of the refrigerant circulation system and the operation of the reversing device in the same way as in the fresh air dehumidification mode. 5.根据权利要求4所述的空气湿度调节装置，其特征在于，当室外温度低于下限温度时，为低温加湿模式，该模式下所述控制模块控制冷媒循环系统运行以及控制所述换向装置动作的方式与所述新风加湿模式相同，还包括获取所述室内送风口的送风温度与室内温度的温度差，所述控制模块根据所述温度差调节所述气流调节部的开度以及调节所述排风机和送风机的风量，使得从蒸发器所在的换热腔进入冷凝器所在的换热腔的风量与从室外进风口进入冷凝器所在的换热腔的风量的比值位于设定范围。5. The air humidity regulating device according to claim 4, characterized in that, when the outdoor temperature is lower than the lower limit temperature, it is a low-temperature humidification mode, in which the control module controls the operation of the refrigerant circulation system and controls the action of the reversing device in the same way as the fresh air humidification mode, and further includes obtaining the temperature difference between the supply air temperature of the indoor air outlet and the indoor temperature, the control module adjusting the opening of the airflow regulating section and adjusting the air volume of the exhaust fan and the supply fan according to the temperature difference, so that the ratio of the air volume entering the heat exchange chamber where the evaporator is located to the air volume entering the heat exchange chamber where the condenser is located from the outdoor air inlet is within a set range. 6.根据权利要求4或5所述的空气湿度调节装置，其特征在于，还包括检测所述室内回风口与所述室内送风口之间气压差，并根据所述气压差辅助调节所述气流调节部的开度，使得所述室内送风口的气压大于所述室内回风口的气压且气压差保持在设定范围内。6. The air humidity regulating device according to claim 4 or 5, characterized in that it further includes detecting the air pressure difference between the indoor return air vent and the indoor supply air vent, and adjusting the opening of the airflow regulating section according to the air pressure difference, so that the air pressure of the indoor supply air vent is greater than the air pressure of the indoor return air vent and the air pressure difference is maintained within a set range. 7.根据权利要求3-5任一项所述的空气湿度调节装置，其特征在于，所述控制模块还包括判断所述新风通道所连通的换热腔中的吸附件的除湿能力或者加湿能力的步骤，并且在当除湿能力或者加湿能力降低至设定限值时，控制所述换向装置将所述新风通道所连通的换热腔更换，以及控制冷媒流向换向。7. The air humidity regulating device according to any one of claims 3-5, characterized in that the control module further includes the step of determining the dehumidification capacity or humidification capacity of the adsorbent in the heat exchange chamber connected to the fresh air duct, and when the dehumidification capacity or humidification capacity is reduced to a set limit, controlling the reversing device to replace the heat exchange chamber connected to the fresh air duct, and controlling the refrigerant flow direction to reverse. 8.根据权利要求7所述的空气湿度调节装置，其特征在于，所述控制模块判断所述新风通道所连通的换热腔中的吸附件的除湿能力或者加湿能力的步骤包括：8. The air humidity regulating device according to claim 7, characterized in that the step of the control module determining the dehumidification capacity or humidification capacity of the adsorbent in the heat exchange chamber connected to the fresh air channel includes: 获取所述新风通道所连通的换热腔中的吸附件的湿度值；Obtain the humidity value of the adsorption element in the heat exchange chamber connected to the fresh air duct; 除湿模式时，当所述湿度值大于第一设定值时，判断为除湿能力降低至设定限值；In dehumidification mode, when the humidity value is greater than the first set value, it is determined that the dehumidification capacity has decreased to the set limit. 加湿模式时，当所述湿度值小于第二设定值时，判断为加湿能力降低至设定限值；In humidification mode, when the humidity value is less than the second set value, it is determined that the humidification capacity has decreased to the set limit. 或者，or, 所述控制模块判断所述新风通道所连通的换热腔中的吸附件的除湿能力或者加湿能力的步骤包括：The steps by which the control module determines the dehumidification or humidification capacity of the adsorption element in the heat exchange chamber connected to the fresh air duct include: 除湿模式时，获取所述新风通道所连通的换热腔中的吸附件的饱和所需的时间T；In dehumidification mode, the time T required for the adsorbent in the heat exchange chamber connected to the fresh air duct to become saturated is obtained; 对当前运行状态的运行时长进行计时，当所述运行时长不小于T时，判断为除湿能力降低至设定限值；The runtime of the current operating state is timed, and when the runtime is not less than T, it is determined that the dehumidification capacity has decreased to a set limit. 加湿模式时，获取所述室内送风口处的含湿量；In humidification mode, the humidity level at the indoor air outlet is measured; 计算相邻两个时刻的含湿量的变化di+1-di；Calculate the change in moisture content between two adjacent time points: d <sub>i+1 </sub> - d<sub>i</sub> . 当di+1-di≤D时，判断为加湿能力降低至设定限值，D为自定义数值，相邻两个时刻的时间间隔可自定义。When d i+1 - d i ≤ D, it is determined that the humidification capacity has decreased to the set limit. D is a custom value, and the time interval between two adjacent moments can be customized.
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