CN115183441B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN115183441B CN115183441B CN202210837328.3A CN202210837328A CN115183441B CN 115183441 B CN115183441 B CN 115183441B CN 202210837328 A CN202210837328 A CN 202210837328A CN 115183441 B CN115183441 B CN 115183441B
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- 230000007613 environmental effect Effects 0.000 claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims description 111
- 238000000034 method Methods 0.000 claims description 46
- 230000008569 process Effects 0.000 claims description 41
- 239000003344 environmental pollutant Substances 0.000 claims description 38
- 231100000719 pollutant Toxicity 0.000 claims description 38
- 238000007791 dehumidification Methods 0.000 claims description 33
- 238000001816 cooling Methods 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 15
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- 238000001914 filtration Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 7
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- 238000005057 refrigeration Methods 0.000 claims description 6
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- 239000007789 gas Substances 0.000 description 9
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- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/032—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers
- F24F1/0323—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the 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
- 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
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
-
- 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
- F24F13/28—Arrangement or mounting of filters
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F2012/007—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using a by-pass for bypassing the heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/66—Volatile organic compounds [VOC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- 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)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner, which comprises an outer shell, a heat exchanger group and a controller, wherein a heat exchange core body is arranged in the outer shell; the heat exchanger group comprises an exhaust heat exchanger, a first air inlet heat exchanger and a second air inlet heat exchanger; the air exhaust heat exchanger is arranged between the outdoor air inlet area and the outdoor air exhaust area, and the first air inlet heat exchanger and the second air inlet heat exchanger are sequentially formed between the indoor air return area and the indoor air supply area along the flowing direction of air flow; also included is a controller configured to: instructions responsive to the mode of operation; acquiring indoor and outdoor environmental state information; according to the indoor and outdoor environmental state information, the running state of the air conditioner is adjusted; according to the requirements of customers, the system can operate different modes in a targeted mode, after the environmental state information of the indoor and the outdoor is acquired and judged by each mode, the switch of each mode is controlled in a targeted mode, the specific operation state of the system is adjusted, the air supply in summer is drier and milder, the air supply in winter is warmer and more comfortable, and the user's requirement on the air supply comfort in the season change period is effectively met.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner.
Background
Along with the increasing standard of living, the requirements of people on the quality of life are also higher. The indoor furniture and decoration cause long-time indoor air pollution, and the requirements of people on indoor fresh air exchange are also more and more strong. The total heat exchanger can realize indoor and outdoor air heat exchange so as to meet the requirement of a user on fresh air exchange.
In the prior art, an air inlet channel and an air outlet channel which can exchange heat with each other are arranged in the total heat exchanger, and the air inlet channel and the air outlet channel are respectively provided with a fan so as to realize the flow of indoor air and outdoor air. Under the effect of the fan, the air exhaust channel discharges indoor air, the air inlet channel introduces outdoor new air, and the new air exchanges heat with the discharged indoor air so as to reduce the fluctuation influence of fresh air on indoor temperature. With the continuous progress of the technology, the total heat exchanger is matched with a heat pump refrigerant system, so that the fresh air conditioner with the functions of temperature adjustment and dehumidification is gradually popularized and used.
In the actual use process, the air conditioner has single function, the independent refrigeration, heating and dehumidification processes are respectively and independently controlled, the control process is mostly dependent on the requirements of users, intelligent adjustment can not be carried out on the states of indoor and outdoor environments, and the user experience is poor.
In addition, in order to improve the comfort of a customer in the dehumidification process, when the dehumidification function is realized, electric heating is needed to raise the temperature, and the energy consumption is higher in the mode; the energy recovery function is not provided, so that energy waste is caused; the energy consumption of the equipment is higher and the economic benefit is poor.
Disclosure of Invention
The invention aims to provide an air conditioner, which solves the problems of single control process, high humanization degree, intelligent adjustment of the working state aiming at indoor and outdoor environments, good customer experience and the like of the existing air conditioner in the prior art.
In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme:
an air conditioner, comprising:
the heat exchange device comprises an outer shell, wherein a heat exchange core body is arranged in the outer shell, and 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; an outdoor air inlet area communicated with the outdoor air inlet, an outdoor air exhaust area communicated with the outdoor air outlet, an indoor air supply area communicated with the indoor air supply opening and an indoor air return area communicated with the indoor air return opening are formed in the outer shell;
The heat exchanger group comprises an exhaust heat exchanger, a first air inlet heat exchanger and a second air inlet heat exchanger; the exhaust heat exchanger is arranged between the outdoor air inlet area and the outdoor air outlet area, and the first air inlet heat exchanger and the second air inlet heat exchanger are sequentially formed between the indoor air return area and the indoor air supply area along the flowing direction of air flow;
And also includes a controller configured to
Instructions responsive to the mode of operation; acquiring indoor and outdoor environmental state information; and adjusting the running state of the air conditioner according to the indoor and outdoor environment state information.
In some embodiments of the application, the modes of operation include a ventilation priority mode, a temperature priority mode, a humidity priority mode, and a cyclical purging mode, the control method being responsive to any of the modes of operation described above;
The indoor and outdoor environmental state information comprises temperature, humidity and target pollutant concentration in indoor and outdoor air, wherein the target pollutant concentration comprises at least one of VOC, CO2 and PM 2.5; the indoor and outdoor environmental state information is obtained through detection devices installed indoors and outdoors respectively, and the detection devices are connected with the controller.
In some embodiments of the present application, an exhaust fan is disposed in the outdoor exhaust area, and an air supply fan is disposed in the indoor air supply area; a side ventilation valve is arranged between the outdoor air inlet area and the first air inlet heat exchanger;
According to the indoor and outdoor environmental state information, the controller adjusts the running state of the air conditioner specifically including:
The outdoor air inlet, the outdoor air outlet, the indoor air supply outlet and the indoor air return outlet are in a switch state;
The opening degree of the bypass air valve; and
The rotational speeds of the exhaust fan and the air supply fan.
In some embodiments of the present application, an air inlet volume adjusting device is arranged in the outdoor air inlet area, an air outlet volume adjusting device is arranged in the indoor return air area, and a purifying component is also arranged in the air inlet volume adjusting device and the air outlet volume adjusting device;
The air inlet air quantity adjusting device and the air outlet air quantity adjusting device comprise a valve body shell, a valve port formed on the side wall of the valve body shell, and a wind deflector rotatably connected to the valve port, wherein the wind deflector is externally connected with a driving piece, and the driving piece is connected with the controller and used for driving the wind deflector to control the opening and closing states of the valve port;
Adjusting the operation state of the air conditioner according to the indoor and outdoor environment state information further comprises:
and controlling the opening of the valve port on the air inlet quantity adjusting device and the air outlet quantity adjusting device.
In some embodiments of the present application, in the temperature priority mode, the detection device detects indoor and outdoor temperatures and indoor and outdoor target contaminant concentrations, respectively;
When the concentration of the outdoor target pollutant is larger than a preset value, the controller controls the air conditioner to start internal circulation;
when the concentration of the outdoor target pollutant is not greater than a preset value, the controller controls the air conditioner to start external circulation, and in an external circulation mode, whether the difference value between the indoor temperature and the outdoor temperature is within a preset range is further judged;
When the difference value of the indoor temperature and the outdoor temperature is within a preset range and the concentration of the outdoor target pollutant is within a preset value, the controller controls the bypass air valve to be opened, the outdoor air inlet, the outdoor air outlet, the indoor air supply opening and the indoor air return opening are opened, and the air exhaust fan and the air supply fan are opened;
When the difference value of the indoor temperature and the outdoor temperature is out of the preset range, the controller adjusts the opening degree of the air inlet quantity adjusting device, so that the outdoor fresh air and part of indoor dirty air are mixed, and the heat load of the system is reduced.
In some embodiments of the present application, in the humidity priority mode, the detection device detects indoor and outdoor humidity and indoor and outdoor target contaminant concentration, respectively;
when the indoor humidity exceeds a preset value, starting an indoor circulating dehumidification mode if the outdoor target pollutant concentration is higher than the preset value;
when the indoor humidity exceeds a preset value, the outdoor target pollutant concentration is not higher than the preset value, the outdoor humidity is further judged, if the outdoor humidity is higher than the preset value, an internal circulation dehumidification mode is started, and otherwise, an external circulation dehumidification mode is started;
under the internal circulation mode or the external circulation mode, the indoor temperature is further judged, if the indoor temperature is larger than a preset value, a cooling and dehumidifying mode is started, otherwise, a non-cooling and dehumidifying mode is started;
in the external circulation mode, when the dehumidification effect of the exhaust heat exchanger is weak, the controller adjusts the valve port on the exhaust air quantity adjusting device, so that part of outdoor fresh air is mixed with indoor dirty air and is conveyed to the exhaust heat exchanger, and the heat exchange quantity of the exhaust heat exchanger is increased.
In some embodiments of the present application, the exhaust heat exchanger, the first intake heat exchanger, and the second intake heat exchanger are connected to the compressor and the four-way valve through refrigerant lines, the four-way valve including an input port, a return port, a first port, and a second port;
The refrigerant outlet of the compressor is communicated with the input port, the backflow port is communicated with the refrigerant backflow port of the compressor, the first port is connected with the exhaust heat exchanger, the other end of the exhaust heat exchanger is connected with the first air inlet heat exchanger through a first refrigerant branch and is connected with the second air inlet heat exchanger through a second refrigerant branch, the first air inlet heat exchanger is connected with the second air inlet heat exchanger through a third refrigerant branch, the other end of the first air inlet heat exchanger is connected with the second port of the four-way valve, a one-way valve is arranged on the first refrigerant branch, a first expansion valve is formed on the second refrigerant branch, and a second expansion valve is formed on the third refrigerant branch; and/or
The two sides of the first expansion valve and the second expansion valve are respectively connected with a filter, the first refrigerant branch is connected to the third refrigerant branch, and the one-way valve is used for controlling the refrigerant to flow from the exhaust heat exchanger to the first air inlet heat exchanger through the second expansion valve;
The controller is further configured to control the four-way valve, the one-way valve, the first expansion valve, and the second expansion valve to open and close.
In some embodiments of the application, the temperature priority mode includes a cooling process and a heating process;
under the refrigeration process, the controller controls the input port to be communicated with the first port, the second expansion valve is opened, the first expansion valve is closed, the electromagnetic valve is opened, at the moment, the first refrigerant branch is opened, and the second air inlet heat exchanger is in a closed state; the air exhaust heat exchanger is used as a condenser, the first air inlet heat exchanger is used as an evaporator, a high-temperature and high-pressure refrigerant is input into the air exhaust heat exchanger through the four-way valve, the refrigerant sequentially releases heat in the air exhaust heat exchanger and then enters the first refrigerant branch, flows through the electromagnetic valve and the one-way valve on the first refrigerant branch, enters the first air inlet heat exchanger after being throttled by the second expansion valve, and is input back into the compressor through the second port and the backflow port of the four-way valve after absorbing heat in the first air inlet heat exchanger, so that one-time refrigerant circulation is completed;
In a heating state, the controller controls the input port of the four-way valve to be communicated with a second port, the second expansion valve is opened to the maximum, the first air inlet heat exchanger and the second air inlet heat exchanger are in a serial state, the first expansion valve is opened, and the first refrigerant branch is in a disconnection state under the action of the one-way valve;
The high-temperature and high-pressure refrigerant is input into the second air inlet heat exchanger through the second port of the four-way valve, at the moment, the first air inlet heat exchanger and the second air inlet heat exchanger are used as condensers, the air exhaust heat exchanger is used as an evaporator, the refrigerant is sequentially released in the first air inlet heat exchanger and the second air inlet heat exchanger, and after absorbing heat in the air exhaust heat exchanger, the refrigerant is input back into the compressor through the first port and the backflow port of the four-way valve, so that one-time refrigerant circulation is completed;
the humidity priority mode comprises a non-cooling dehumidification process and a cooling dehumidification process:
In the process of dehumidification without temperature reduction, the controller controls the input port of the four-way valve to be communicated with a first port, the first expansion valve and the second expansion valve are opened, the electromagnetic valve on the first refrigerant branch is closed, and the first refrigerant branch is cut off;
The high-temperature and high-pressure refrigerant is output from the compressor, flows through the exhaust heat exchanger and the second air inlet heat exchanger through the four-way valve to release heat (the maximum opening degree of the first expansion valve does not play a throttling role at the moment), and enters the first air inlet heat exchanger to absorb heat after being throttled by the first expansion valve, and then returns to the compressor to complete circulation;
the refrigerant conveying process in the cooling and dehumidifying process is consistent with the refrigerating process.
In some embodiments of the present application, in a ventilation priority mode, the detection device detects indoor and outdoor target contaminant concentrations, respectively;
When the concentration of the outdoor target pollutant is not more than a preset value, the controller controls the bypass air valve to be closed, the air inlet air quantity adjusting device and the valve ports on the air exhaust air quantity adjusting device are closed, the outdoor air inlet, the outdoor air outlet, the indoor air supply port and the indoor air return port are opened, and the air exhaust fan and the air supply fan are opened;
under the action of an air supply fan, outdoor fresh air input from an outdoor air inlet sequentially passes through a filter assembly, the heat exchange core body, the first air inlet heat exchanger and the second air inlet heat exchanger in an air inlet volume adjusting device and then is input into a room from the indoor air supply port;
Under the action of the exhaust fan, indoor sewage air input from the indoor air return port sequentially passes through a filter assembly, the heat exchange core body and the exhaust heat exchanger in the exhaust air volume adjusting device and is exhausted from an outdoor air outlet;
And in the air exchange priority mode, the controller controls the compressor to be not operated, and the refrigerant heat exchange process is not performed.
In some embodiments of the present application, in the cyclic decontamination mode, the detection device detects outdoor and indoor target contaminant concentrations, respectively;
when the concentration of indoor target pollutants and the concentration of outdoor target pollutants are larger than respective preset values, the controller controls the air inlet air quantity adjusting device and the valve ports on the air outlet air quantity adjusting device to be completely opened, the outdoor air inlet, the outdoor air outlet, the indoor air supply outlet and the indoor air return outlet are opened, and the air outlet fan and the air supply fan are opened;
The outdoor fresh air input from the outdoor air inlet is conveyed to the exhaust heat exchanger from a valve port after passing through a filter assembly in the air inlet quantity adjusting device under the action of an exhaust fan, and then is exhausted from the outdoor air outlet;
Under the action of the air supply fan, indoor dirty air input from the indoor air return opening is filtered by the filtering component, then output from a valve port on the exhaust air volume adjusting device, and then input into the room from the indoor air supply opening after passing through the first air inlet heat exchanger and the second air inlet heat exchanger;
in the circulation purification mode, the controller controls the compressor to be inactive and does not perform the refrigerant heat exchange process.
Compared with the prior art, the invention has the advantages and positive effects that:
The application provides an air conditioner, which is used for pointedly running different modes according to the demands of customers, and after the indoor and outdoor environment state information is acquired and judged by each mode, the switch of each mode is pointedly controlled, the specific running state of the air conditioner is adjusted, the air supply in summer is drier and milder, the air supply in winter is warmer and more comfortable, and the requirements of users on the air supply comfortableness in the season replacement period (such as spring return to the south and autumn cooling weather) are effectively met;
In the non-cooling dehumidification mode, the first air inlet heat exchanger and the second air inlet heat exchanger are arranged in the indoor air supply area, so that fresh air is reheated after dehumidification in summer, the air outlet is prevented from being supercooled, and the comfort is improved;
In addition, the air conditioner is internally provided with an independent compressor refrigerant system, and a user does not need to additionally arrange an outdoor unit. The comprehensive cost of the unit is reduced, the independent operation of the fresh air fan and the air conditioning system is realized, the energy consumption of a house is reduced, the size is small, and the installation is convenient; and the energy recovery, fresh air and dehumidification functions are combined in the integrated machine, so that the energy utilization rate is high, and the energy conservation and the high efficiency are realized.
Other features and advantages of the present invention will become apparent upon review of the detailed description of the invention in conjunction with the drawings.
Drawings
FIG. 1 is a schematic diagram of a classification flow of air conditioner operation modes;
fig. 2 is a schematic structural perspective view of an embodiment of an air conditioner according to the present invention;
FIG. 3 is a schematic plan view showing the structure of an embodiment of an air conditioner according to the present invention;
fig. 4 is a schematic side view illustrating the structure of an embodiment of an air conditioner according to the present invention;
FIG. 5 is a schematic diagram illustrating a refrigerant transportation of an air conditioner according to the present invention;
FIG. 6 is a second schematic diagram of refrigerant transportation of the fresh air dehumidifying all-in-one machine according to the present invention;
FIG. 7 is a third schematic diagram illustrating a refrigerant transportation of an air conditioner according to the present invention;
FIG. 8 is one of the schematic diagrams of the gas flow-through process;
FIG. 9 is a second schematic diagram of the airflow process;
FIG. 10 is a schematic diagram of the structure of the intake air volume adjusting device and the exhaust air volume adjusting device;
FIG. 11 is a schematic view of a decontamination assembly installation;
fig. 12 is a schematic diagram showing a split structure of the intake air volume adjusting device and the exhaust air volume adjusting device;
FIG. 13 is a schematic view of a support structure;
FIG. 14 is a schematic view of the bottom structure of the support;
FIG. 15 is a schematic view of a filter and positioning meter configuration;
FIG. 16 is a schematic view of bypass damper position;
FIG. 17 is a schematic diagram of a side vent valve configuration;
FIG. 18 is a schematic flow diagram of the airflow in bypass mode;
FIG. 19 is a schematic view of the flow of air in the internal circulation mode;
FIG. 20 is a schematic diagram of a temperature priority mode determination flow;
FIG. 21 is a schematic view of a humidity limited mode decision flow;
FIG. 22 is a flow chart for determining a ventilation priority mode;
FIG. 23 is a schematic diagram of a temperature priority mode determination flow;
In the drawing the view of the figure,
100. An outer housing;
101. an outdoor air inlet area; 102. an outdoor exhaust area; 103. an indoor return air area; 104. an indoor air supply area;
110. an outdoor air inlet;
120. an outdoor air outlet;
130. An indoor air return port;
140. an indoor air supply port;
200. An exhaust air volume adjusting device;
300. A heat exchange core;
400. An exhaust fan;
500. An air supply fan;
610. An exhaust heat exchanger;
620. a first air intake heat exchanger;
630. A second air inlet heat exchanger;
700. An air inlet quantity adjusting device;
710. A valve body housing; 711. an air flow input; 712. an air flow output end;
720. a wind deflector;
730. A valve port;
740. A purification assembly;
741. A support; 7411. a support bottom surface; 7412. a support sidewall; 7413. a limit part; 7414. a mounting port;
7415. a fixing hole; 7416. an interface;
742. a filter; 7421. a primary filter unit; 7422. a high-efficiency filtering part;
743. a positioning piece;
800. a compressor;
810. a four-way valve;
811. an input port; 812. A return port; 813. a first port; 814. a second port;
820. a second refrigerant branch; 821. a first expansion valve;
830. a first refrigerant branch; 831. a one-way valve; 832. an electromagnetic valve;
840. a third refrigerant branch; 841. a second expansion valve;
850. A filter;
900. A side vent valve;
910. A bypass air duct;
920. a switch valve; 921. a driving section; 922. and rotating the valve plate.
Detailed Description
The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, 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 application 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 application.
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 application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
The embodiment provides a fresh air conditioner which performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration and heating cycle includes a series of processes involving compression, condensation, expansion and evaporation and supplying a refrigerant medium to the conditioned and heat exchanged air.
The compressor 800 compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor 800. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor, an exhaust heat exchanger, and an exhaust fan, the indoor unit of the air conditioner includes portions of an intake heat exchanger and an intake fan, and a throttling device (e.g., a capillary tube or an electronic expansion valve) may be provided in the indoor unit or the outdoor unit.
The intake air heat exchanger and the exhaust air heat exchanger are used as a condenser or an evaporator. The air conditioner performs a heating mode when the intake air heat exchanger is used as a condenser, and performs a cooling mode when the intake air heat exchanger is used as an evaporator.
The air intake heat exchanger and the air exhaust heat exchanger 610 are converted into a condenser or an evaporator, and a four-way valve 810 is generally adopted, and the details of the arrangement of a conventional air conditioner are specifically referred to and will not be described herein.
The refrigeration working principle of the air conditioner is as follows: the compressor 800 works to make the interior of the air intake heat exchanger (in the indoor unit, at this time, the evaporator) in an ultra-low pressure state, the liquid refrigerant in the air intake heat exchanger rapidly evaporates and absorbs heat, the air blown out by the indoor fan is cooled by the coil pipe of the air intake heat exchanger and then changed into cold air to be blown into the room, the evaporated refrigerant is pressurized by the compressor 800 and then condensed into liquid state in the high-pressure environment in the air exhaust heat exchanger 610 (in the outdoor unit, at this time, the condenser) to release heat, the heat is emitted into the atmosphere by the air exhaust fan, and the refrigerating effect is achieved by circulation.
The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor 800 to become high-temperature and high-pressure gas, and enters the air inlet heat exchanger (a condenser at this time), and is condensed, liquefied and released heat to become liquid, and meanwhile, the indoor air is heated, so that the aim of increasing the indoor temperature is fulfilled. The liquid refrigerant is depressurized by the throttling device, enters the exhaust heat exchanger 610 (an evaporator at this time), evaporates and gasifies to absorb heat, becomes gas, absorbs heat of the outdoor air (the outdoor air becomes colder) and becomes a gaseous refrigerant, and enters the compressor 800 again to start the next cycle.
The total heat exchanger in the fresh air conditioner can be an efficient and energy-saving heat recovery device, the introduced fresh air is preheated or precooled by recovering waste heat in exhaust gas, and the enthalpy value of the fresh air is reduced or increased before the fresh air is subjected to heat-humidity treatment. The system load is effectively reduced, the energy consumption and the operation cost of the system are saved, and the contradiction between improving the indoor air quality and saving the energy of the system is effectively solved.
The working principle of the total heat exchanger is as follows: when the indoor air exhaust and fresh air respectively flow through the heat exchanger core in a positive crossing mode during operation, the two airflows present heat and mass transfer phenomena when passing through the partition plate due to the temperature difference and the steam partial pressure difference existing in airflows at two sides of the airflow partition plate, so that the total heat exchange process is caused. When the air conditioner runs in summer, the fresh air obtains cold energy from air exhaust of the air conditioner, so that the temperature is reduced, and meanwhile, the fresh air is dried by the air conditioner, so that the moisture content of the fresh air is reduced; when the air conditioner runs in winter, fresh air is exhausted from the air conditioning chamber to obtain heat, and the temperature is increased. In this way, the fresh air is allowed to recover energy from the air conditioner exhaust air through the total heat exchange process of the heat exchange core 300.
The air conditioner comprises the total heat exchanger and the heat pump refrigerant system, is integrated with the total heat exchanger and the heat pump refrigerant system, and is beneficial to reducing the comprehensive cost of a unit and reducing the volume of equipment.
The air conditioner bears the functions of indoor fresh air ventilation and humidity regulation, and sets various operation modes according to different use conditions, and specifically comprises a ventilation priority mode, a temperature priority mode, a humidity priority mode and a circulation purification mode.
Referring to fig. 1, the controller is arranged in the air conditioner, responds to the instructions of the different operation modes, correspondingly acquires indoor and outdoor environment state information, and adjusts the operation state of the air conditioner according to the indoor and outdoor environment state information so as to meet different requirements of users.
Indoor and outdoor environmental status information includes temperature, humidity, and target contaminant concentration in indoor and outdoor air, the target contaminant concentration including at least one of VOC, CO2, PM 2.5; the indoor and outdoor environmental state information is respectively obtained through detection devices arranged indoors and outdoors, the detection devices are connected with the controller, the detection devices send the detected environmental information to the controller, and the controller analyzes the environmental information and then controls the running state of the air conditioner.
Next, the composition of the air conditioner will be described in detail first, and then, control of the controller in different operation modes will be described in connection with the structure of the air conditioner.
As shown in fig. 2 and 3, the total heat exchanger includes an outer case 100 and a heat exchange core 300 provided in the outer case 100, and an outdoor air inlet 110, an outdoor air outlet 120, an indoor air supply outlet 140, and an indoor air return outlet 130 are formed in the outer case 100.
An installation cavity is formed in the outer casing 100 for installing working components such as each heat exchanger and the compressor 800, and the installation cavity comprises an outdoor air inlet area 101 communicated with an outdoor air inlet 110, an outdoor air outlet area 102 communicated with an outdoor air outlet 120, an indoor air supply area 104 communicated with an indoor air supply outlet 140 and an indoor air return area 103 communicated with an indoor air return outlet 130.
For the total heat exchanger, the outer case 100 is installed in a user's home during actual use as an installation fixing member. The outer shell 100 is usually formed by processing sheet metal materials, and the outer shell 100 is integrally of a flat rectangular structure, so that the outer shell can be hoisted in a suspended ceiling of a user's home for use in the installation and use processes.
The heat exchange core 300 is a key component of the total heat exchanger, and is used for exchanging heat between indoor polluted air and outdoor fresh air, and the heat exchange core 300 is generally configured with a first air flow channel (not labeled) for exhausting air to the outdoor side, and a second air flow channel for introducing the outdoor fresh air into the indoor, wherein heat transfer can be performed between the first air flow channel and the second air flow channel.
Meanwhile, in order to meet the indoor and outdoor air flowing requirement, an air inlet fan 500 and an air outlet fan 400 are configured in the housing, the air inlet fan 500 is arranged in the indoor air supply area 104 for driving outdoor fresh air to be input into the room from the indoor air supply port 140, and the air outlet fan 400 is arranged in the outdoor air outlet area 102 for driving indoor polluted air to be output out of the room from the outdoor air outlet 120.
Outdoor fresh air enters the outer shell 100 from the outdoor air inlet 110 and is input indoors through the indoor air supply outlet 140, indoor dirty air enters the outer shell 100 from the indoor air return outlet 130 and is output outdoors through the outdoor air outlet 120, and indoor dirty air and outdoor fresh air selectively pass through the heat exchange core 300 and exchange heat in the heat exchange core 300.
Referring to fig. 4 to 7, the heat pump refrigerant system includes a compressor 800, a four-way valve 810, an exhaust heat exchanger 610, a first inlet air heat exchanger 620, and a second inlet air heat exchanger 630, which are connected together by refrigerant lines.
An air inlet channel is formed between the outdoor air inlet 110 and the indoor air outlet 140 for delivering outdoor fresh air, and an air exhaust channel is formed between the indoor air return 130 and the outdoor air outlet 120 for delivering indoor polluted air.
The exhaust heat exchanger 610 is disposed in the exhaust passage, and the first and second inlet heat exchangers 620 and 630 are sequentially formed in the inlet passage along the flow direction of the air flow.
The four-way valve 810 comprises an input port 811, a return port 812, a first port 813 and a second port 814, and different working states of each air inlet heat exchanger and each air outlet heat exchanger 610 are realized by switching the communication relation between the input port 811 and the first port 813 or the second port 814, so that the purpose of refrigerating or heating is achieved.
The refrigerant output port of the compressor 800 communicates with the input port 811, the return port 812 communicates with the refrigerant return port of the compressor 800, and the first port 813 is connected to the exhaust heat exchanger 610.
The other end of the exhaust heat exchanger 610 is connected to the first inlet heat exchanger 620 through a first refrigerant branch 830, and to the second inlet heat exchanger 630 through a second refrigerant branch 820, respectively.
The other end of the first air intake heat exchanger 620 is connected to the second port 814 of the four-way valve 810, and the first air intake heat exchanger 620 is connected to the second air intake heat exchanger 630 through a third refrigerant branch 840.
The first refrigerant branch 830 is provided with a check valve 831 and a solenoid valve 832, the second refrigerant branch is provided with a first expansion valve 821, and the third refrigerant branch 840 is provided with a second expansion valve 841.
The first expansion valve 821 and the second expansion valve 841 are respectively connected to two sides thereof with a filter 850 for filtering impurities doped in the refrigerant, thereby preventing the expansion valve from being blocked.
One end of the first refrigerant branch 830 connected to the first air inlet heat exchanger 620 is connected to the third refrigerant branch 840, and the check valve 831 is used for controlling the refrigerant to flow from the air exhaust heat exchanger 610 to the first air inlet heat exchanger 620 through the second expansion valve 841.
As shown in fig. 9-12, in some embodiments of the present application, an intake air volume adjusting device 700 is disposed in the outdoor intake area 101, an exhaust air volume adjusting device 200 is disposed in the indoor return area 103, the intake air volume adjusting device 700 is connected between the outdoor intake 110 and the heat exchange core 300, and the exhaust air volume adjusting device 200 is disposed between the indoor return 130 and the heat exchange core 300.
The air intake volume adjusting device 700 and the air exhaust volume adjusting device 200 each comprise a valve body shell 710, a valve port 730 formed on the side wall of the valve body shell 710, and a wind shield 720 rotatably connected to the valve port 730, wherein the wind shield 720 is externally connected with a driving member for driving the wind shield 720 to control the opening and closing states of the valve port 730.
The wind deflector 720 is also used for cutting off a gas flow path between the outdoor air inlet 110 or the indoor air return 130 and the heat exchange core 300 when the valve port 730 is completely opened, that is, cutting off a path between the outdoor air inlet 110 and the heat exchange core 300 in a vertical state of the wind deflector 720 in the air inlet volume adjusting device 700, and cutting off a path between the indoor air return 130 and the heat exchange core 300 in a vertical state of the wind deflector 720 in the air outlet volume adjusting device 200.
In the horizontal state in the drawing, the wind screen 720 will completely close the valve port 730, i.e., the passage between the outdoor air intake 110 and the heat exchange core 300 is fully opened, and the passage between the indoor air return 130 and the heat exchange core 300 is fully opened.
With the rotation of the wind guard 720, the opening of the valve port 730 gradually increases, and the wind guard 720 is in a vertical state in the drawing, so that the opening of the valve port 730 is maximum, and at this time, the air circulation amount of the indoor side and the air circulation amount of the outdoor side are also maximum.
Referring specifically to fig. 11 and 12, in some embodiments of the present application, a purifying assembly 740 is further disposed in the intake air volume adjusting device 700 and the exhaust air volume adjusting device 200, the purifying assembly 740 includes a valve body housing 710, a support member 741 detachably mounted in the valve body housing 710, and a filter member 742 angularly disposed in the support member 741, and a stopper 7413 for positioning the filter member 742 is formed in the support member 741.
Referring specifically to fig. 10, the valve body housing 710 includes an air flow input end 711 and an air flow output end 712, wherein a tapered air flow channel is formed on the air flow input end 711 along the air flow direction, and a filter 742 is positioned at the end of the air flow channel, so that the air flow is conveyed into the filter 742 in a concentrated manner for filtering.
As shown in fig. 13, the supporting member 741 is generally U-shaped, and specifically includes a supporting bottom surface 7411 and supporting side walls 7412 disposed on two sides of the supporting bottom surface 7411, the supporting bottom surface 7411 is used for supporting the filter 742, and the supporting side walls 7412 are provided with a limiting portion 7413 for limiting the filter 742.
Referring to fig. 11 and 14 again, the filter 742 includes an air inlet end face and an air outlet end face, the air inlet end face is parallel to the air outlet end face, the cross-section of the filter 742 is parallelogram along the air flow direction, and the included angle α between the air inlet end face and the support bottom 7411 is 30-80 degrees.
The inclination angle between the conventional air inlet end surface and the supporting bottom surface 7411 is a right angle, and by changing the inclination angle between the air inlet end surface and the supporting bottom surface 7411, the filtering area of the air flow passing through the filtering piece 742 is increased, which is beneficial to reducing the occupied space of the filtering piece 742 in the air conditioner and plays a key role in reducing the overall height of the product.
Referring again to fig. 12, the limiting portion 7413 specifically includes a plurality of limiting ribs formed on the sidewalls of the supporting member 741 at both sides and extending toward the inner cavity of the supporting member 741, and an inclination angle of each of the limiting ribs is adapted to an inclination angle of the filtering member 742.
The dimension between two adjacent spacing ribs on the same support 741 is adapted to the length of the filter 742 in the direction of airflow, i.e. the filter 742 is mounted between the two spacing ribs.
Referring again to fig. 11, the filter 742 specifically includes a primary filter portion 7421 and a high-efficiency filter portion 7422, the primary filter portion 7421 and the high-efficiency filter portion 7422 being disposed in sequence along the airflow direction, the primary filter portion 7421 being for filtering particulate dust and suspended matter having a particle size greater than μm; for filtering particulate dust and suspended matter having a particle size of not more than mu m.
The primary filter 7421 comprises a primary air inlet end face, a primary air outlet end face and a primary bottom face, the primary bottom face is in contact connection with the supporting bottom plate, and air flow is input from the primary air inlet end face, is filtered by the primary filter 7421, and is output from the primary air outlet end face.
Specifically, the efficient filter portion 7422 includes an efficient air inlet end face, an efficient air outlet end face, and an efficient bottom face, and the air flow output from the primary air outlet end face is input into the efficient filter portion 7422 from the efficient air inlet end face, and is output from the efficient air outlet end face after being filtered by the efficient filter portion 7422.
In addition, a positioning member 743 is further formed between the primary filter portion 7421 and the efficient filter portion 7422, for supporting the primary filter portion 7421 and the efficient filter portion 7422 in an auxiliary manner, and facilitating the assembly and disassembly of the primary filter portion 7421 and the efficient filter portion 7422.
The support bottom surface 7411 is formed with mounting openings 7414, and the width of the mounting openings 7414 is adapted to the width of the entire support bottom surface 7411, whereby the primary filter portion 7421 and the high-efficiency filter portion 7422 are mounted to or dismounted from the mounting openings 7414 into the support member 741.
As shown in fig. 14, the two ends of the mounting hole 7414 along the air flow direction are respectively formed with a plugging hole 7416 and a fixing hole 7415, and the positioning member 7413 is detachably connected to the supporting bottom surface 7411, and the mounting position of the positioning member 7414 is adapted to the position of the mounting hole 7414.
Specifically, as shown in fig. 15, the positioning member 743 includes a connection plate and a positioning projection formed on a surface of the connection plate, and in the mounted state, the positioning projection extends from a position of the mounting port 7414 to above the support bottom surface 7411.
The both sides of location arch are formed with first location inclined plane and second location inclined plane, and under the installed state, first location inclined plane is connected with high-efficient air inlet terminal surface contact, and the second location inclined plane is connected with first effect bottom surface contact.
Further, in order to realize detachable connection with the supporting bottom plate, one end of the connecting plate is formed with a plug-in connection part, and the other end is formed with a connecting hole.
In the mounted state, the insertion portion of the connection plate is inserted into the insertion port 7416, and the connection hole at the other end is fixed to the fixing hole 7415 by a fastener.
The section shape of the primary filter 7421 along the air flow direction is rectangular or parallelogram, and a wind shielding part is arranged above the support piece 741 and is positioned above the primary air inlet end face for ensuring that the air flow is completely input from the primary air inlet end face.
The valve body housing 710 has an installation cavity formed therein, and a support 741 to which the filter 742 is previously installed is detachably coupled to the valve body housing 710 along a length direction of the installation cavity.
Specifically, the primary filter portion 7421 and the high-efficiency filter portion 7422 are first mounted in the support member 741 from the mounting hole 7414 of the support bottom surface 7411, and the mounting direction thereof is regulated by the regulating portion 7413.
Then, the positioning member 743 is fixed to the lower surface of the support bottom surface 7411, and the positioning projections are provided between the primary filter portion 7421 and the high-efficiency filter portion 7422, so that the primary filter portion 7421 and the high-efficiency filter portion 7422 are supported and fixed, and the attachment and fixation of the primary filter portion 7421 and the high-efficiency filter portion 7422 to the support member 741 are completed.
As shown in fig. 16-18, in other embodiments of the present application, a bypass valve 900 is further disposed beside the intake air volume regulator 700, for controlling the direct communication between the outdoor intake air area 101 and the indoor intake air area 104, the bypass valve 900 includes a bypass air duct 910 and an on-off valve 920 located in the bypass air duct 910, when the valve port 730 on the intake air volume regulator 700 is opened, the outdoor fresh air is directly delivered into the indoor intake air area 104 through the valve port 730 and the bypass air valve 900.
The switching valve 920 includes a driving part 921 and a rotary valve plate 922 connected to an output end of the driving part 921, and a rotation center of the rotary valve plate 922 is perpendicular to a flow direction of the air passing through the bypass duct 910.
Specifically, the bypass air valve 900 includes a bypass air duct 910 and a switch valve 920 located in the bypass air duct 910, an air inlet of the bypass air duct 910 is communicated with the outdoor air duct, an air outlet is communicated with the indoor return air area 103, after the switch valve 920 in the bypass air duct 910 is opened, outdoor fresh air is directly conveyed to the indoor return air area 103 from the outdoor air duct through the bypass air duct 910, and is conveyed to the indoor air supply area 104 from the indoor return air area 103 through the second heat exchanger, so that the direct communication between the outdoor air supply area and the second heat exchanger is realized.
The air channel between the air inlet and the air outlet of the bypass air channel 910 is in a gradually-expanding shape, the switch valve 920 is located at one side of the air outlet of the bypass air channel 910, and the switch valve 920 specifically includes a driving part 921 and a rotary valve plate 922 connected with the output end of the driving part 921.
The rotation center of the rotary valve plate 922 is perpendicular to the airflow direction passing through the bypass duct 910.
In the bypass mode, the driving portion 921 is located below the bypass air duct 910, and the output shaft of the driving portion 921 extends downward perpendicular to the bypass air duct 910, and the driving portion 921 is opened to drive the output shaft to rotate, thereby driving the rotary valve plate 922 to rotate by a certain angle, and opening the bypass air duct 910.
In the bypass mode, the wind screen 720 of the air intake air volume adjusting device 700 is in a vertical state, the wind screen 720 in the air exhaust air volume adjusting device 200 is in a horizontal state, the heat exchange core 300 is communicated with the air exhaust channel, and the side ventilation valve 900 is opened.
Outdoor air is input into the outdoor air duct from the outdoor air inlet 110, is filtered by the primary filter screen and the high-efficiency filter screen, is conveyed to the first air inlet heat exchanger 620 from the bypass air valve 900, is conveyed to the indoor from the indoor air supply port 140 after passing through the second air inlet heat exchanger 630 and is guided by the air inlet fan 500, namely, in the mode, outdoor fresh air is directly introduced into the indoor without passing through the heat exchange core 300.
Indoor dirty air enters the indoor channel from the indoor air return port 130, passes through the indoor filter screen and then is conveyed into the heat exchange core 300, and the indoor dirty air output from the heat exchange core 300 is discharged outdoors from the outdoor air outlet 120 through the air exhaust heat exchanger 610, and in this mode, no heat exchange occurs between fresh air and dirty air in the heat exchange core 300.
The following describes in detail different operation modes of the air conditioner:
Based on the structure of the air conditioner, the controller adjusts the running state of the air conditioner by combining the indoor and outdoor environment state information specifically comprises: controlling the on-off state of the outdoor air inlet 110, the outdoor air outlet 120, the indoor air supply outlet 140 and the indoor air return outlet 130; controlling the opening degree of the side vent valve 900; and rotational speeds of the exhaust fan 400 and the supply fan 500.
< Temperature priority mode >
Referring to fig. 20, in the temperature priority mode, the detecting means detects indoor and outdoor temperatures and indoor and outdoor target contaminant concentrations, respectively; the air supply temperature is preferably regulated and controlled, fresh air ventilation is considered, and the method is suitable for indoor temperature and humidity fine regulation in transition seasons with lower temperature and humidity loads.
In order to ensure the comfort of the air supply temperature preferentially, the controller automatically adjusts the opening degrees of the air inlet air quantity adjusting device 700 and the air outlet air quantity adjusting device 200 and the rotating speeds of the air supply fan 500 and the air outlet fan 400 according to the indoor and outdoor temperatures so as to ensure the capacity energy efficiency of the heat pump circulation system.
When the concentration of the outdoor target pollutant is larger than a preset value, the controller controls the air conditioner to start internal circulation; preventing outdoor contaminants from entering the room.
When the concentration of the outdoor target pollutant is not greater than a preset value, the controller controls the air conditioner to start external circulation, and in an external circulation mode, whether the difference value between the indoor temperature and the outdoor temperature is within a preset range is further judged;
When the difference between the indoor and outdoor temperatures is within the preset range, the controller controls the side ventilation valve 900 to be opened, the outdoor air inlet 110, the outdoor air outlet 120, the indoor air supply outlet 140 and the indoor air return outlet 130 to be opened, and the air exhaust fan 400 and the air supply fan 500 to be opened.
When the difference between the indoor temperature and the outdoor temperature is outside the preset range, the controller adjusts the opening degree of the air inlet quantity adjusting device 700, so that the outdoor fresh air and part of indoor polluted air are mixed, and the heat load of the system is reduced.
The temperature priority mode comprises a refrigerating process and a heating process;
Referring to fig. 5, in the cooling condition, the input port 811 communicates with the first port 813, the second expansion valve 841 is opened, the first expansion valve 821 is closed, the solenoid valve 832 is opened, and at this time, the first refrigerant branch 830 is opened, and the second intake air heat exchanger 630 is in a closed state.
At this time, the air exhaust heat exchanger 610 is used as a condenser, the first air intake heat exchanger 620 is used as an evaporator, wherein the high-temperature and high-pressure refrigerant is input into the air exhaust heat exchanger 610 through the four-way valve 810, the refrigerant sequentially releases heat in the air exhaust heat exchanger 610 and then enters the first refrigerant branch 830, flows through the electromagnetic valve 832 and the one-way valve 831 on the first refrigerant branch 830, then enters the first air intake heat exchanger 620 after being throttled by the second expansion valve 841, and after absorbing heat in the first air intake heat exchanger 620, is input back into the compressor 800 through the second port 814 and the backflow port 812 of the four-way valve 810, thus completing one refrigerant cycle.
In the process that the indoor dirty air is introduced into the heat exchange core 300 through the exhaust fan 400 to exchange heat with the outdoor fresh air, the heat load of the outdoor fresh air is transferred to the indoor dirty air, so that the temperature of the outdoor fresh air is reduced, and the heat load of an air conditioning system is reduced; the indoor contaminated air outputted from the heat exchange core 300 is still lower than the outdoor temperature, and the indoor contaminated air is discharged to the outside again through the exhaust heat exchanger 610 (condenser) taking more heat load, thereby reducing the heat load of the air conditioning system again.
In the refrigerating state, after the outdoor fresh air is introduced by the air inlet fan 500, the outdoor fresh air is subjected to heat exchange with indoor polluted air through the heat exchange core 300, and then subjected to primary cooling and secondary cooling through the first air inlet heat exchanger 620, so that the refrigerating function is realized.
Referring to fig. 6, in the heating state, the input port 811 of the four-way valve 810 is communicated with the second port 814, the second expansion valve 841 is opened to the maximum, the first air intake heat exchanger 620 and the second air intake heat exchanger 630 are in a series connection state, the first expansion valve 821 is opened, and the first refrigerant branch 830 is in a disconnected state under the action of the check valve 831.
The high-temperature and high-pressure refrigerant is input into the second air inlet heat exchanger 630 through the second port 814 of the four-way valve 810, at this time, the first air inlet heat exchanger 620 and the second air inlet heat exchanger 630 are used as condensers, the air outlet heat exchanger 610 is used as an evaporator, the refrigerant is sequentially released in the first air inlet heat exchanger 620 and the second air inlet heat exchanger 630, absorbs heat in the air outlet heat exchanger 610, and then is input back into the compressor 800 through the first port 813 and the backflow port 812 of the four-way valve 810, so that one-time refrigerant circulation is completed.
In the process that the indoor sewage wind is introduced into the heat exchange core 300 through the exhaust fan 400 to exchange heat with the outdoor fresh air, the cold load of the outdoor fresh air is transferred to the indoor sewage wind, so that the temperature of the outdoor fresh air is increased, and the cold load of an air conditioning system is reduced; the indoor contaminated air outputted from the heat exchange core 300 is still higher than the outdoor temperature, and the indoor contaminated air is discharged to the outside again through the air discharge heat exchanger 610 (evaporator) taking more cool load, and the cool load of the air conditioning system is reduced again.
In the heating state, outdoor fresh air is introduced by the air inlet fan 500, subjected to heat exchange with indoor dirty air through the heat exchange core 300, subjected to first temperature rise, and subjected to second temperature rise through the first air inlet heat exchanger 620 and the second air inlet heat exchanger 630, so that a heating function is realized.
< Humidity priority mode >
Referring to fig. 21, in the humidity priority mode, the detecting means detects indoor humidity and indoor and outdoor target contaminant concentrations, respectively; the air supply humidity is preferably regulated and controlled, the temperature and fresh air ventilation are considered, and the method is suitable for scenes with larger indoor humidity requirements such as cold weather, return weather, heating season and the like.
In a humidity priority mode, the detection device respectively detects indoor and outdoor humidity and indoor and outdoor target pollutant concentration;
and when the indoor humidity exceeds a preset value, starting an indoor circulating dehumidification mode if the outdoor target pollutant concentration is higher than the preset value.
In this mode, the air intake volume adjusting device 700 and the air deflector 720 in the air exhaust volume adjusting valve are in a vertical state, the heat exchange core 300 is in a closed state with the air exhaust passage and the air intake passage, and the side ventilation valve 900 is closed.
Outdoor air is conveyed into the air inlet channel through the outdoor air inlet 110, subjected to heat exchange through the air exhaust heat exchanger 610, and then output to the outside through the outdoor air outlet 120 through the air exhaust fan 400, so that primary external circulation heat exchange is formed.
After the indoor air enters the air inlet channel from the indoor air return port 130, the air is filtered by the air exhaust air quantity regulating device 200 and then is output to the first air inlet heat exchanger 620 to cool and dehumidify the air, the cooled air is heated by the second air inlet heat exchanger 630, and then is sent to the room again from the indoor air supply port 140 under the guidance of the air inlet fan 500, so that an internal circulation dehumidification process is formed.
When the indoor humidity exceeds a preset value, the outdoor target pollutant concentration is not higher than the preset value, the outdoor humidity is further judged, if the outdoor humidity is higher than the preset value, an internal circulation dehumidification mode is started, and otherwise, an external circulation dehumidification mode is started;
under the internal circulation mode or the external circulation mode, the indoor temperature is further judged, if the indoor temperature is larger than a preset value, a cooling and dehumidifying mode is started, otherwise, a non-cooling and dehumidifying mode is started;
In the external circulation mode, when the dehumidification effect of the exhaust heat exchanger 610 is weak, the controller adjusts the valve port on the exhaust air quantity adjusting device 200, so that part of outdoor fresh air and indoor dirty air are mixed and conveyed to the exhaust heat exchanger 610, and the heat exchange quantity of the exhaust heat exchanger 610 is increased;
When the difference between the indoor humidity and the target humidity is large, the air supply system is automatically switched to an internal circulation mode and an external circulation mode to perform rapid dehumidification/humidification.
In addition, in the total heat air supply mode, when the outdoor temperature and humidity are higher than a preset value, the controller controls the valve port on the air inlet quantity adjusting device 700 to be opened, and simultaneously increases the rotating speed of the air exhaust fan 400 to improve the heat dissipation capacity of the condenser, so as to improve the dehumidification capacity of the heat pump system;
When the humidity of the supplied air is higher than a preset value and the indoor humidity is lower than the preset value, the controller controls the valve port on the exhaust air volume adjusting device 200 to be opened, and simultaneously increases the rotating speed of the air supply fan 500 to reduce the fresh air content in the supplied air, thereby reducing the humidity of the supplied air and effectively preventing indoor condensation.
The humidity priority mode comprises a non-cooling dehumidification process and a cooling dehumidification process:
Referring to fig. 7, in the non-cooling dehumidification, the input port 811 communicates with the first port 813, the first expansion valve 821 and the second expansion valve 841 are opened, the solenoid valve 832 provided in the first refrigerant branch 830 is closed, and the first refrigerant branch 830 is shut off.
The high-temperature and high-pressure refrigerant is output from the compressor 800, flows through the exhaust heat exchanger 610 and the second intake heat exchanger 630 through the four-way valve 810 to release heat (at this time, the maximum opening of the first expansion valve 821 does not play a role in throttling), and enters the first intake heat exchanger 620 to absorb heat after being throttled by the first expansion valve 821, and then returns to the compressor 800 to complete circulation.
At this time, the indoor contaminated air and the indoor contaminated air circulate from the heat exchange core 300, the first heat recovery is completed in the heat exchange core 300, the heat of the indoor contaminated air is increased, the heat of the outdoor fresh air is reduced, the increased indoor contaminated air passes through the exhaust heat exchanger 610, the temperature is further increased after absorbing the heat of the exhaust heat exchanger 610, and then the indoor contaminated air is discharged outdoors.
After the outdoor fresh air is subjected to heat exchange and cooling with indoor polluted air at the heat exchange core 300, the temperature is reduced and dehumidified through the first air inlet heat exchanger 620, and after the temperature is reduced and dehumidified, the outdoor fresh air is further heated through the second air exhaust heat exchanger 610, so that the proper temperature is reached, the fresh air is output to the indoor space, and the comfort level of a user is improved.
In the cooling-free dehumidification mode, the opening of the first expansion valve 821 can be adjusted in real time through the air outlet temperature, so that the indoor return air temperature is guaranteed to be the same as the air outlet temperature.
The refrigerant conveying process in the cooling and dehumidifying process is consistent with the refrigerating process.
< Ventilation priority mode >
Referring to fig. 22, in the ventilation priority mode, the detection device detects indoor and outdoor target pollutant concentrations respectively, ensures fresh air ventilation, and is suitable for scenes requiring larger fresh air ventilation, such as newly decorated houses and closed houses.
When the indoor target pollutant concentration is larger than a preset value, the air conditioner starts working in response to the ventilation priority mode, otherwise, the air conditioner is shut down, and ventilation treatment is not needed for indoor air.
When the concentration of the outdoor target pollutant is not more than a preset value, the external circulation is started preferentially, fresh air exchange and air supply are realized, and the operation is stopped after the concentration of the indoor target pollutant reaches the standard.
When the concentration of the outdoor target pollutant is larger than a preset value, the internal circulation is started, and the indoor air is purified.
Specifically, in the external circulation mode, the controller controls the side ventilation valve 900 to be closed, the valve ports on the air inlet volume adjusting device 700 and the air outlet volume adjusting device 200 to be closed, the outdoor air inlet 110, the outdoor air outlet 120, the indoor air outlet 140 and the indoor air return 130 to be opened, and the air outlet fan 400 and the air supply fan 500 to be opened.
Under the action of the air supply fan 500, the outdoor fresh air input from the outdoor air inlet 110 passes through the heat exchange core 300, then sequentially passes through the first air inlet heat exchanger 620 and the second air inlet heat exchanger 630, and then is input into the room from the indoor air supply port 140; indoor polluted air input from the indoor air return port 130 is discharged from the outdoor air outlet 120 after passing through the heat exchange core 300 and the air exhaust heat exchanger 610 in sequence under the action of the air exhaust fan 400.
In the internal circulation mode, the controller controls the air inlet volume adjusting device 700 and the wind shield 720 in the air outlet volume adjusting valve to be in a vertical state, controls the heat exchange core 300 and the air outlet channel and the air inlet channel to be in a closed state, and controls the side ventilation valve 900 to be closed.
< Cycle purge mode >
Referring to fig. 23, in the circulation purge mode, the detecting means detects outdoor and indoor target contaminant concentrations, respectively; the method is suitable for the situations that the concentration of the outdoor air pollutants is high and the indoor air pollutants need to be purified.
The air supply system is automatically switched to the internal circulation mode to operate when the outdoor pollutant concentration exceeds a preset value.
When the concentration of the indoor target pollutant and the concentration of the outdoor target pollutant are larger than respective preset values, an internal circulation mode is started, and the indoor air is subjected to circulation purification treatment under the condition that an external fresh air regulating part is not introduced until the concentration of the indoor target pollutant is reduced to be within the preset values.
In the internal circulation mode, the controller controls the air inlet and outlet adjusting device 700 and the air outlet on the air outlet adjusting device 200 to be completely opened, the outdoor air inlet 110, the outdoor air outlet 120, the indoor air outlet 140 and the indoor air return 130 to be opened, and the air outlet fan 400 and the air outlet fan 500 to be opened; the outdoor fresh air input from the outdoor air inlet 110 is conveyed to the air exhaust heat exchanger 610 through a valve port on the air inlet quantity adjusting device 700 under the action of the air exhaust fan 400, and then is exhausted from the outdoor air outlet 120; the indoor polluted air inputted from the indoor return air inlet 130 is outputted through the valve port of the air exhaust volume adjusting device 200 under the action of the air supply fan 500, and then inputted into the room from the indoor air supply outlet 140 after sequentially passing through the first air inlet heat exchanger 620 and the second air inlet heat exchanger 630.
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 embodiments of the present invention, and the scope of 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 covered by the present invention, and the scope of the present invention shall be defined by the appended claims.
Claims (10)
1. An air conditioner, comprising:
an outer shell body, wherein an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet are formed on the outer shell body;
An outdoor air inlet area formed in the outer housing and communicated with the outdoor air inlet;
An outdoor exhaust area formed in the outer case and communicating with an outdoor exhaust port;
An indoor air supply area formed in the outer housing and communicated with the indoor air supply area;
The indoor return air area is formed in the outer shell and is communicated with the indoor return air inlet;
The heat exchange core body is arranged in the outer shell;
a heat exchanger group comprising
The exhaust heat exchanger is arranged between the outdoor air inlet area and the outdoor air exhaust area;
a first air inlet heat exchanger is arranged on the first air inlet heat exchanger,
The first air inlet heat exchanger and the second air inlet heat exchanger are sequentially formed between the indoor return air area and the indoor air supply area along the flowing direction of air flow;
And also includes a controller configured to
Instructions responsive to the mode of operation; acquiring indoor and outdoor environmental state information; according to the indoor and outdoor environment state information, the running state of the air conditioner is adjusted;
an exhaust fan is arranged in the outdoor exhaust area, and an exhaust air quantity adjusting device is arranged in the indoor return air area; an air supply fan is arranged in the indoor air supply area, and an air inlet quantity adjusting device is arranged in the outdoor air inlet area;
The air inlet and air quantity adjusting device is connected between the outdoor air inlet and the heat exchange core body, and the air outlet and air quantity adjusting device is arranged between the indoor air return opening and the heat exchange core body;
The air inlet air quantity adjusting device and the air outlet air quantity adjusting device comprise a valve body shell, a valve port formed on the side wall of the valve body shell, a wind shield rotatably connected to the valve port, and a driving piece connected to the wind shield for driving the wind shield to control the opening and closing states of the valve port;
In the total heat air supply mode, when the outdoor temperature and humidity are higher than a preset value, the controller controls the valve port on the air inlet quantity adjusting device to be opened, and simultaneously increases the rotating speed of the air exhaust fan so as to improve the heat dissipation capacity of the condenser and further improve the dehumidification capacity of the heat pump system;
When the humidity of the supplied air is higher than a preset value, and the indoor humidity is lower than the preset value, the controller controls the valve port on the exhaust air volume adjusting device to be opened, and simultaneously increases the rotating speed of the air supply fan to reduce the fresh air content in the supplied air, so that the humidity of the supplied air is reduced, and indoor condensation can be effectively prevented.
2. An air conditioner according to claim 1, wherein,
The operating modes include a ventilation priority mode, a temperature priority mode, a humidity priority mode, and a cyclical purge mode, the control method being responsive to any of the operating modes described above;
The indoor and outdoor environmental state information comprises temperature, humidity and target pollutant concentration in indoor and outdoor air, wherein the target pollutant concentration comprises at least one of VOC, CO2 and PM 2.5; the indoor and outdoor environmental state information is obtained through detection devices installed indoors and outdoors respectively, and the detection devices are connected with the controller.
3. An air conditioner according to claim 2, wherein,
A side ventilation valve is arranged between the outdoor air inlet area and the first air inlet heat exchanger;
According to the indoor and outdoor environmental state information, the controller adjusts the running state of the air conditioner specifically including:
The outdoor air inlet, the outdoor air outlet, the indoor air supply outlet and the indoor air return outlet are in a switch state;
The opening degree of the bypass air valve; and
The rotational speeds of the exhaust fan and the air supply fan.
4. An air conditioner according to claim 3, wherein,
The air inlet air quantity adjusting device and the air outlet air quantity adjusting device are internally provided with a purifying component;
The air inlet and outlet volume adjusting devices comprise a valve body shell, a valve port formed on the side wall of the valve body shell, and a wind deflector rotatably connected to the valve port, wherein the wind deflector is externally connected with a driving piece;
The driving piece is connected with the controller and is used for driving the wind shield to control the opening and closing states of the valve ports;
the controller adjusts the operation state of the air conditioner according to the indoor and outdoor environment state information, and
And controlling the opening of the valve port on the air inlet quantity adjusting device and the air outlet quantity adjusting device.
5. The air conditioner according to claim 4, wherein,
In the temperature priority mode, the detection device respectively detects indoor and outdoor temperatures and indoor and outdoor target pollutant concentrations;
When the concentration of the outdoor target pollutant is larger than a preset value, the controller controls the air conditioner to start internal circulation;
when the concentration of the outdoor target pollutant is not greater than a preset value, the controller controls the air conditioner to start external circulation, and in an external circulation mode, whether the difference value between the indoor temperature and the outdoor temperature is within a preset range is further judged;
When the difference value of the indoor temperature and the outdoor temperature is within a preset range and the concentration of the outdoor target pollutant is within a preset value, the controller controls the bypass air valve to be opened, the outdoor air inlet, the outdoor air outlet, the indoor air supply opening and the indoor air return opening are opened, and the air exhaust fan and the air supply fan are opened;
When the difference value of the indoor temperature and the outdoor temperature is out of the preset range, the controller adjusts the opening degree of the air inlet quantity adjusting device, so that the outdoor fresh air and part of indoor dirty air are mixed, and the heat load of the system is reduced.
6. The air conditioner according to claim 5, wherein,
In a humidity priority mode, the detection device respectively detects indoor and outdoor humidity and indoor and outdoor target pollutant concentration;
when the indoor humidity exceeds a preset value, starting an indoor circulating dehumidification mode if the outdoor target pollutant concentration is higher than the preset value;
when the indoor humidity exceeds a preset value, the outdoor target pollutant concentration is not higher than the preset value, the outdoor humidity is further judged, if the outdoor humidity is higher than the preset value, an internal circulation dehumidification mode is started, and otherwise, an external circulation dehumidification mode is started;
under the internal circulation mode or the external circulation mode, the indoor temperature is further judged, if the indoor temperature is larger than a preset value, a cooling and dehumidifying mode is started, otherwise, a non-cooling and dehumidifying mode is started;
in the external circulation mode, when the dehumidification effect of the exhaust heat exchanger is weak, the controller adjusts the valve port on the exhaust air quantity adjusting device, so that part of outdoor fresh air is mixed with indoor dirty air and is conveyed to the exhaust heat exchanger, and the heat exchange quantity of the exhaust heat exchanger is increased.
7. An air conditioner according to claim 6, wherein,
The exhaust heat exchanger, the first air inlet heat exchanger and the second air inlet heat exchanger are connected with a compressor and a four-way valve through refrigerant pipelines, and the four-way valve comprises an input port, a backflow port, a first port and a second port;
The refrigerant outlet of the compressor is communicated with the input port, the return port is communicated with the refrigerant return port of the compressor, and the first port is connected with the exhaust heat exchanger;
the two ends of the first refrigerant branch are respectively connected with the exhaust heat exchanger and the first air inlet heat exchanger, and the first refrigerant branch is provided with a one-way valve and an electromagnetic valve;
The two ends of the second refrigerant branch are respectively connected with the exhaust heat exchanger and the second air inlet heat exchanger, and a first expansion valve is formed on the second refrigerant branch;
the two ends of the third refrigerant branch are respectively connected with the first air inlet heat exchanger and the second air inlet heat exchanger; the second expansion valve is formed on the third refrigerant branch, and the first refrigerant branch is connected to the third refrigerant branch;
Wherein the other end of the first air inlet heat exchanger is connected with the second port of the four-way valve, and/or
The two sides of the first expansion valve and the second expansion valve are respectively connected with a filter, and the one-way valve is used for controlling the refrigerant to flow in one direction from the exhaust heat exchanger to the first air inlet heat exchanger through the second expansion valve;
The controller is further configured to control the four-way valve, the one-way valve, the first expansion valve, and the second expansion valve to open and close.
8. An air conditioner according to claim 7, wherein,
The temperature priority mode comprises a refrigerating process and a heating process;
under the refrigeration process, the controller controls the input port to be communicated with the first port, the second expansion valve is opened, the first expansion valve is closed, the electromagnetic valve is opened, at the moment, the first refrigerant branch is opened, and the second air inlet heat exchanger is in a closed state; the air exhaust heat exchanger is used as a condenser, the first air inlet heat exchanger is used as an evaporator, a high-temperature and high-pressure refrigerant is input into the air exhaust heat exchanger through the four-way valve, the refrigerant sequentially releases heat in the air exhaust heat exchanger and then enters the first refrigerant branch, flows through the electromagnetic valve and the one-way valve on the first refrigerant branch, enters the first air inlet heat exchanger after being throttled by the second expansion valve, and is input back into the compressor through the second port and the backflow port of the four-way valve after absorbing heat in the first air inlet heat exchanger, so that one-time refrigerant circulation is completed;
In a heating state, the controller controls the input port of the four-way valve to be communicated with a second port, the second expansion valve is opened to the maximum, the first air inlet heat exchanger and the second air inlet heat exchanger are in a serial state, the first expansion valve is opened, and the first refrigerant branch is in a disconnection state under the action of the one-way valve;
The high-temperature and high-pressure refrigerant is input into the second air inlet heat exchanger through the second port of the four-way valve, at the moment, the first air inlet heat exchanger and the second air inlet heat exchanger are used as condensers, the air exhaust heat exchanger is used as an evaporator, the refrigerant is sequentially released in the first air inlet heat exchanger and the second air inlet heat exchanger, and after absorbing heat in the air exhaust heat exchanger, the refrigerant is input back into the compressor through the first port and the backflow port of the four-way valve, so that one-time refrigerant circulation is completed;
the humidity priority mode comprises a non-cooling dehumidification process and a cooling dehumidification process:
In the process of dehumidification without temperature reduction, the controller controls the input port of the four-way valve to be communicated with a first port, the first expansion valve and the second expansion valve are opened, the electromagnetic valve on the first refrigerant branch is closed, and the first refrigerant branch is cut off;
The high-temperature and high-pressure refrigerant is output from the compressor, flows through the exhaust heat exchanger and the second air inlet heat exchanger through the four-way valve to release heat (the maximum opening degree of the first expansion valve does not play a throttling role at the moment), and enters the first air inlet heat exchanger to absorb heat after being throttled by the first expansion valve, and then returns to the compressor to complete circulation;
the refrigerant conveying process in the cooling and dehumidifying process is consistent with the refrigerating process.
9. The air conditioner according to claim 7, wherein,
In the ventilation priority mode, the detection device detects indoor and outdoor target pollutant concentrations respectively;
When the concentration of the outdoor target pollutant is not more than a preset value, the controller controls the bypass air valve to be closed, the air inlet air quantity adjusting device and the valve ports on the air exhaust air quantity adjusting device are closed, the outdoor air inlet, the outdoor air outlet, the indoor air supply port and the indoor air return port are opened, and the air exhaust fan and the air supply fan are opened;
under the action of an air supply fan, outdoor fresh air input from an outdoor air inlet sequentially passes through a filter assembly, the heat exchange core body, the first air inlet heat exchanger and the second air inlet heat exchanger in an air inlet volume adjusting device and then is input into a room from the indoor air supply port;
Under the action of the exhaust fan, indoor sewage air input from the indoor air return port sequentially passes through a filter assembly, the heat exchange core body and the exhaust heat exchanger in the exhaust air volume adjusting device and is exhausted from an outdoor air outlet; and in the air exchange priority mode, the controller controls the compressor to be not operated, and the refrigerant heat exchange process is not performed.
10. The air conditioner according to claim 7, wherein,
In the circulating purification mode, the detection device detects the concentration of outdoor and indoor target pollutants respectively;
when the concentration of indoor target pollutants and the concentration of outdoor target pollutants are larger than respective preset values, the controller controls the air inlet air quantity adjusting device and the valve ports on the air outlet air quantity adjusting device to be completely opened, the outdoor air inlet, the outdoor air outlet, the indoor air supply outlet and the indoor air return outlet are opened, and the air outlet fan and the air supply fan are opened;
The outdoor fresh air input from the outdoor air inlet is conveyed to the exhaust heat exchanger from a valve port after passing through a filter assembly in the air inlet quantity adjusting device under the action of an exhaust fan, and then is exhausted from the outdoor air outlet;
Under the action of the air supply fan, indoor dirty air input from the indoor air return opening is filtered by the filtering component, then output from a valve port on the exhaust air volume adjusting device, and then input into the room from the indoor air supply opening after passing through the first air inlet heat exchanger and the second air inlet heat exchanger;
in the circulation purification mode, the controller controls the compressor to be inactive and does not perform the refrigerant heat exchange process.
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| CN113432210A (en) * | 2021-06-16 | 2021-09-24 | 青岛海信日立空调系统有限公司 | Fresh air dehumidification all-in-one |
| CN113819603A (en) * | 2021-09-06 | 2021-12-21 | 珠海格力电器股份有限公司 | Indoor ventilation method and device, ventilation equipment and storage medium |
| CN113915748A (en) * | 2021-09-22 | 2022-01-11 | 广州松下空调器有限公司 | Fresh air control method and device, fresh air fan and fresh air conditioner |
| CN114198808A (en) * | 2021-12-29 | 2022-03-18 | 福建瑞博恩环境科技有限公司 | Reheating type passive environmental control integrated machine set |
| CN114738856A (en) * | 2022-04-29 | 2022-07-12 | 青岛海信日立空调系统有限公司 | Fresh air dehumidification all-in-one |
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| CN115183441A (en) | 2022-10-14 |
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