CN115264622A - Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method - Google Patents

Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method Download PDF

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Publication number
CN115264622A
CN115264622A CN202210903732.6A CN202210903732A CN115264622A CN 115264622 A CN115264622 A CN 115264622A CN 202210903732 A CN202210903732 A CN 202210903732A CN 115264622 A CN115264622 A CN 115264622A
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China
Prior art keywords
fresh air
air
heat exchanger
compressor
temperature
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CN202210903732.6A
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Chinese (zh)
Inventor
黄志刚
黄宝明
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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Priority to CN202210903732.6A priority Critical patent/CN115264622A/en
Publication of CN115264622A publication Critical patent/CN115264622A/en
Pending legal-status Critical Current

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units 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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • 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

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

Abstract

The embodiment of the application provides a fresh air conditioner indoor unit, a fresh air conditioner and a fresh air control method, wherein the fresh air conditioner indoor unit comprises a shell, an air conditioner assembly and a fresh air assembly; an air conditioning cavity with an indoor air return inlet and an indoor air outlet and a fresh air cavity with a fresh air inlet and a fresh air outlet are arranged in the shell, and a fresh air path is formed between the fresh air inlet and the fresh air outlet; the air conditioning assembly is arranged in the air conditioning cavity and comprises an air conditioning heat exchanger; the new trend subassembly sets up at the new trend intracavity, and the new trend subassembly includes new trend heat exchanger and new trend fan, and new trend heat exchanger and new trend fan are located the new trend route. The fresh air conditioner indoor unit provided by the embodiment of the application can realize at least one function of fresh air dehumidification, fresh air refrigeration and fresh air heating, and therefore the function of fresh air can be increased, and good complementation of fresh air and an air conditioner is realized.

Description

Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method
Technical Field
The application relates to the technical field of air conditioners, in particular to a fresh air conditioner indoor unit, a fresh air conditioner and a fresh air control method.
Background
In the related art, there is an air conditioner in which an indoor unit is combined with a fresh air module to add a fresh air function to the air conditioner. However, the fresh air component generally only has simple fresh air functions of introducing fresh air, filtering dust and the like, and the functions are single.
Disclosure of Invention
In view of this, embodiments of the present application are expected to provide an indoor unit of a fresh air conditioner, a fresh air conditioner and a fresh air control method, so as to solve the technical problem in the related art that a function of a fresh air component disposed on an air conditioner is relatively single.
In order to achieve the above object, an embodiment of the present application provides a fresh air conditioner indoor unit, including:
the air conditioner comprises a shell, wherein an air conditioner cavity with an indoor air return opening and an indoor air outlet and a fresh air cavity with a fresh air inlet and a fresh air outlet are arranged in the shell, and a fresh air path is formed between the fresh air inlet and the fresh air outlet;
the air conditioning assembly is arranged in the air conditioning cavity and comprises an air conditioning heat exchanger;
the fresh air component is arranged in the fresh air cavity and comprises a fresh air heat exchanger and a fresh air fan, and the fresh air heat exchanger and the fresh air fan are located on the fresh air path.
In one embodiment, the fresh air conditioner indoor unit comprises a refrigerant pipeline and a switch assembly, the air conditioner heat exchanger, the fresh air heat exchanger and the switch are all arranged on the refrigerant pipeline, and the switch assembly is used for conducting a refrigerant flow path flowing through the air conditioner heat exchanger and/or a refrigerant flow path flowing through the fresh air heat exchanger.
In one embodiment, the air-conditioning heat exchanger and the fresh air heat exchanger are connected in parallel, and the fresh air-conditioning indoor unit comprises a switch assembly including an air-conditioning switch valve and a fresh air switch valve; the air conditioner switch valve is used for selectively switching on or switching off a refrigerant flow path flowing through the air conditioner heat exchanger, and the fresh air switch valve is used for selectively switching on or switching off the refrigerant flow path flowing through the fresh air heat exchanger.
In one implementation mode, the air conditioner assembly comprises an air conditioner water pan, the fresh air assembly comprises a fresh air water pan, and the fresh air water pan is communicated with the air conditioner water pan so that condensed water can be discharged through one of the fresh air water pan and the air conditioner water pan.
Another embodiment of this application provides a fresh air conditioner, includes the aforesaid fresh air conditioner indoor set.
Another embodiment of the present application provides a fresh air control method for the fresh air conditioner described above, wherein the control method includes:
receiving a control instruction;
starting a fresh air fan;
and the refrigerant flow path flowing through the fresh air heat exchanger is communicated.
In one embodiment, the control instruction is a fresh air independent heat exchange instruction for controlling the fresh air heat exchanger to perform independent heat exchange, and the fresh air independent heat exchange instruction comprises at least one of a fresh air independent dehumidification instruction, a fresh air independent refrigeration instruction and a fresh air independent heating instruction; and/or the presence of a gas in the atmosphere,
the control instruction is a common heat exchange instruction for controlling the fresh air heat exchanger and the air conditioner heat exchanger to exchange heat together, and the common heat exchange instruction comprises at least one of a common dehumidification instruction, a common refrigeration instruction and a common heating instruction.
In one embodiment, the control command is the common heat exchange command, and before or after receiving the common heat exchange command, the control method further includes:
starting an air conditioner fan;
and conducting a refrigerant flow path flowing through the air-conditioning heat exchanger.
In one embodiment, when the air conditioner is in an operation mode corresponding to the control instruction, the control method further includes:
and adjusting the running frequency of the compressor according to preset conditions.
In one embodiment, the control instruction is the fresh air independent dehumidification instruction or the common dehumidification instruction, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the first difference value between the outdoor inlet air humidity and the set humidity is larger than or equal to a first set value, the running frequency of the compressor is increased; and/or the presence of a gas in the atmosphere,
and if the first difference value between the outdoor inlet air humidity and the set humidity is less than or equal to the second set value, reducing the running frequency of the compressor, wherein the second set value is less than the first set value.
In one embodiment, the control command is the fresh air independent refrigeration command or the common refrigeration command, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the second difference value between the indoor temperature and the first set temperature is greater than or equal to a third set value, increasing the operating frequency of the compressor; and/or the presence of a gas in the gas,
and if the second difference value between the indoor temperature and the first set temperature is less than or equal to the fourth set value, reducing the running frequency of the compressor, wherein the fourth set value is less than the third set value.
In one embodiment, if the indoor temperature is lower than the first set temperature, the compressor is controlled to stop operating.
In one embodiment, the control instruction is the fresh air independent heating instruction or the common heating instruction, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the third difference value between the second set temperature and the indoor temperature is greater than or equal to a fifth set value, increasing the operating frequency of the compressor; and/or the presence of a gas in the atmosphere,
and if a third difference value between the second set temperature and the indoor temperature is less than or equal to a sixth set value, reducing the operating frequency of the compressor, wherein the sixth set value is less than the fifth set value.
In one embodiment, if the indoor temperature is higher than the second set temperature, the compressor is controlled to stop operating.
In one embodiment, if the received control instruction is the fresh air independent dehumidification instruction or the fresh air independent refrigeration instruction, the operation frequency of the compressor is adjusted, including: determining a first target evaporation temperature currently required by the fresh air heat exchanger; adjusting the operating frequency of the compressor according to the determined first target evaporation temperature; and/or the presence of a gas in the gas,
if the received control instruction is the common dehumidification instruction or the common refrigeration instruction, adjusting the operating frequency of the compressor, including: determining a second target evaporation temperature currently required by the whole system; adjusting the operating frequency of the compressor according to the determined second target evaporation temperature; and/or the presence of a gas in the gas,
if the received control command is the independent fresh air heating command, the operation frequency of the compressor is adjusted, and the method comprises the following steps: determining a first target condensing temperature currently required by the fresh air heat exchanger; adjusting the operating frequency of the compressor according to the determined first target condensing temperature; and/or the presence of a gas in the gas,
if the received control command is the common heating command, adjusting the operating frequency of the compressor, including: determining a second target condensing temperature currently required by the whole system; adjusting the operating frequency of the compressor according to the determined second target condensing temperature.
The embodiment of the application provides a fresh air conditioner indoor unit, a fresh air conditioner and a fresh air control method, wherein the fresh air conditioner indoor unit is provided with a fresh air heat exchanger in a fresh air cavity, the fresh air heat exchanger exchanges heat with air flow flowing along a fresh air path, and at least one function of fresh air dehumidification, fresh air refrigeration and fresh air heating can be realized, so that the function of fresh air can be increased, and good complementation of fresh air and an air conditioner is realized.
Drawings
Fig. 1 is a schematic structural view of a fresh air conditioner indoor unit according to an embodiment of the present application;
fig. 2 is a schematic method diagram of a fresh air control method according to an embodiment of the present application.
Description of the reference numerals
A housing 10; an air-conditioning chamber 10a; a fresh air chamber 10b; a fresh air outlet 10c; an air conditioning assembly 20; an air-conditioning heat exchanger 21; an air-conditioning water pan 22; a fresh air component 30; a fresh air heat exchanger 31; a fresh air blower 32; a fresh air water pan 33; a switch assembly 40; an air-conditioning switching valve 41; a fresh air switching valve 42; refrigerant line 50.
Detailed Description
An embodiment of the present application provides a fresh air conditioner indoor unit, please refer to fig. 1, and the fresh air conditioner indoor unit includes a casing 10, an air conditioning assembly 20, and a fresh air assembly 30.
An air conditioning cavity 10a and a fresh air cavity 10b are arranged in the casing 10, wherein the air conditioning cavity 10a is provided with an indoor air return inlet and an indoor air outlet, and the air conditioning assembly 20 is arranged in the air conditioning cavity 10 a. The air conditioning assembly 20 is used for conditioning indoor air, such as conventional cooling, heating (some models may have only a cooling function and no heating function).
The air conditioning assembly 20 includes an air conditioning heat exchanger 21, and the indoor air flow flows into the air conditioning cavity 10a from the indoor air return opening, and flows out from the indoor air outlet after heat exchange at the air conditioning heat exchanger 21.
Only an air-conditioning heat exchanger 21 and an air-conditioning water pan 22 in the air-conditioning assembly 20 are shown in fig. 1, and the air-conditioning water pan 22 is used for containing condensed water generated by the air-conditioning heat exchanger 21. In addition, the air conditioning assembly 20 further includes a conventional air conditioning assembly such as an air conditioning fan, which is not described in detail herein.
The fresh air cavity 10b is provided with a fresh air inlet and a fresh air outlet 10c, and a fresh air path is formed between the fresh air inlet and the fresh air outlet 10c, namely, outdoor air flow flows into the fresh air cavity 10b from the fresh air inlet and then flows into the room through the fresh air outlet 10c, so that fresh air can be conveyed into the room.
Fresh air component 30 sets up in fresh air chamber 10b, and fresh air component 30 is the subassembly that is used for realizing the new trend function.
The fresh air component 30 includes a fresh air heat exchanger 31 and a fresh air blower 32, and the fresh air heat exchanger 31 and the fresh air blower 32 are located on a fresh air path.
The fresh air fan 32 is used for guiding the airflow to flow along a fresh air path, that is, the outdoor airflow flows into the fresh air cavity 10b from the fresh air inlet under the action of the fresh air fan 32, and then flows into the room from the fresh air outlet 10c, so that the effect of introducing fresh air into the room is achieved.
The fresh air heat exchanger 31 is used for exchanging heat for the airflow flowing along the fresh air path. Similar to the air-conditioning heat exchanger 21, the fresh air heat exchanger 31 can realize at least one of fresh air dehumidification, fresh air refrigeration and fresh air heating by exchanging heat with the airflow flowing along the fresh air path.
Fresh air heat exchanger 31 and fresh air fan 32 are two components in fresh air component 30, and in addition, fresh air component 30 can also set up and filter a piece, filters the piece and is used for filtering the air current that flows into in fresh air chamber 10 b.
Another embodiment of this application provides a new trend air conditioner, this new trend air conditioner include any embodiment of this application the new trend air conditioner indoor set.
The type of the fresh air conditioner is not limited, for example, the fresh air conditioner may be a wall-mounted air conditioner, a suspension air conditioner, a floor air conditioner, or the like.
The fresh air conditioner indoor unit of the embodiment of the application is provided with the fresh air heat exchanger 31 in the fresh air cavity 10b, the fresh air heat exchanger 31 exchanges heat with air flow flowing along a fresh air path, at least one function of fresh air dehumidification, fresh air refrigeration and fresh air heating can be realized, therefore, the function of fresh air can be increased, and good complementation of fresh air and an air conditioner is realized.
In an embodiment, referring to fig. 1, the fresh air conditioner indoor unit includes a refrigerant pipeline 50 and a switch assembly 40, the air conditioner heat exchanger 21, the fresh air heat exchanger 31 and the switch are all disposed on the refrigerant pipeline 50, and the switch assembly 40 is configured to conduct a refrigerant flow path flowing through the air conditioner heat exchanger 21 and/or a refrigerant flow path flowing through the fresh air heat exchanger 31.
That is to say, the air-conditioning heat exchanger 21 and the fresh air heat exchanger 31 share the same refrigerant pipeline 50, or the fresh air heat exchanger 31 borrows the refrigerant pipeline 50 of the air-conditioning heat exchanger 21, and at the same time, only the refrigerant flow path flowing through the air-conditioning heat exchanger 21 can be conducted through the switch assembly 40, only the refrigerant flow path flowing through the fresh air heat exchanger 31 can be conducted, and also the refrigerant flow path flowing through the air-conditioning heat exchanger 21 and the refrigerant flow path flowing through the fresh air heat exchanger 31 can be conducted at the same time, so that various heat exchange requirements can be met.
The specific arrangement of the refrigerant pipeline 50 and the switch assembly 40 can be adjusted as required, for example, referring to fig. 1, the air-conditioning heat exchanger 21 is connected in parallel with the fresh air heat exchanger 31, the fresh air indoor unit includes the switch assembly 40 including an air-conditioning switch valve 41 and a fresh air switch valve 42, the air-conditioning switch valve 41 is used for selectively switching on or off a refrigerant flow path flowing through the air-conditioning heat exchanger 21, and the fresh air switch valve 42 is used for selectively switching on or off a refrigerant flow path flowing through the fresh air heat exchanger 31.
That is to say, two branches may be disposed on the refrigerant pipeline 50, and for convenience of description, the two branches may be referred to as a first branch and a second branch, respectively, the air-conditioning heat exchanger 21 and the air-conditioning switching valve 41 are disposed on the first branch, and the fresh air heat exchanger 31 and the fresh air switching valve 42 are disposed on the second branch. When the air conditioner switch valve 41 is closed and the fresh air switch valve 42 is opened, the refrigerant flow path flowing through the air conditioner heat exchanger 21 is cut off, and the refrigerant flow path flowing through the fresh air heat exchanger 31 is conducted; when the air conditioner switch valve 41 is opened and the fresh air switch valve 42 is closed, the refrigerant flow path flowing through the air conditioner heat exchanger 21 is switched on, and the refrigerant flow path flowing through the fresh air heat exchanger 31 is cut off; when both the air conditioning switching valve 41 and the fresh air switching valve 42 are opened, the refrigerant flow path through the air conditioning heat exchanger 21 and the refrigerant flow path through the fresh air heat exchanger 31 are simultaneously conducted.
In some embodiments, the switch assembly 40 may also be a control valve having at least three working ports, such as a three-way switching valve, the air conditioning heat exchanger 21 is communicated with one of the working ports, the fresh air heat exchanger 31 is communicated with another of the working ports, and the control valve may also conduct at least one of a refrigerant flow path flowing through the air conditioning heat exchanger 21 and a refrigerant flow path flowing through the fresh air heat exchanger 31 by switching.
In some embodiments, the air-conditioning heat exchanger 21 and the fresh air heat exchanger 31 may not share the same refrigerant pipeline 50, for example, two independent pipelines may be provided, that is, the two pipelines operate independently, the air-conditioning heat exchanger 21 is provided on one of the pipelines, and the fresh air heat exchanger 31 is provided on the other of the pipelines.
In an embodiment, referring to fig. 1, the fresh air assembly 30 is provided with a fresh air water pan 33, the air-conditioning water pan 22 is used for containing condensed water generated by the heat exchanger 21 of the air conditioner, in fig. 1, the fresh air water pan 33 is communicated with the air-conditioning water pan 22, and the condensed water in the fresh air water pan 33 flows into the air-conditioning water pan 22 and then is uniformly discharged to the outside of the indoor unit of the fresh air conditioner through the air-conditioning water pan 22, thereby improving convenience of water discharge.
It is understood that, in some embodiments, the condensed water in the air-conditioning water pan 22 may also flow into the fresh air water pan 33, and then be discharged outside the fresh air-conditioning indoor unit through the fresh air water pan 33.
Still another embodiment of the present application further provides a fresh air control method, please refer to fig. 2, where the fresh air control method includes the following steps:
step S601: receiving a control instruction;
step S602: starting a fresh air fan;
step S603: the refrigerant flow path flowing through the fresh air heat exchanger is conducted.
Step S601 and step S602 are not consecutive, and no consecutive means that any one of the two steps can be executed first, the other one is executed later, and the two steps can also be executed simultaneously.
It should be noted that, before receiving the control instruction, the fresh air fan is turned on first, which indicates that the fresh air fan only introduces outdoor airflow into the room, and the fresh air heat exchanger does not exchange heat with the airflow, or that the fresh air conditioner is turned on in the most basic fresh air mode.
In addition, if the step of turning on the fresh air fan is after receiving the control instruction, step S602 and step S603 are not in sequence.
Illustratively, the control instruction can be a fresh air independent heat exchange instruction for controlling a fresh air heat exchanger to perform independent heat exchange, that is, in a fresh air independent heat exchange mode, only the fresh air heat exchanger performs heat exchange, but the air conditioner heat exchanger does not perform heat exchange, or a refrigerant flow path flowing through the air conditioner heat exchanger is in a cut-off state, but the air conditioner fan can be in an open state or a closed state.
The fresh air independent heat exchange instruction can comprise at least one of a fresh air independent dehumidification instruction, a fresh air independent refrigeration instruction and a fresh air independent heating instruction, namely, the air conditioner can have at least one of a fresh air independent dehumidification mode, a fresh air independent refrigeration mode and a fresh air independent heating mode.
Taking the received fresh air independent heat exchange instruction as a fresh air independent dehumidification instruction as an example, under the fresh air independent dehumidification mode, the air flow flowing along the fresh air path becomes cold air flow with relatively low temperature after exchanging heat with the fresh air heat exchanger in the fresh air cavity, the cold air flow flows into the room from the fresh air outlet to dehumidify the room, and the air conditioning assembly does not refrigerate nor dehumidify.
The fresh air independent refrigeration mode is substantially the same as the fresh air independent dehumidification mode, and is not repeated herein.
Taking the received fresh air independent heat exchange instruction as a fresh air independent heating instruction as an example, in the fresh air independent heating mode, the airflow flowing along the fresh air path is changed into hot airflow with relatively high temperature after exchanging heat with the fresh air heat exchanger in the fresh air cavity, the hot airflow flows into the room from the fresh air outlet to heat the room, and the air conditioner assembly does not heat.
For example, the control instruction may also be a common heat exchange instruction for controlling the fresh air heat exchanger and the air conditioner heat exchanger to exchange heat together, that is, in the common heat exchange mode, the air conditioner fan is in an open state, the refrigerant flow path flowing through the fresh air heat exchanger and the refrigerant flow path flowing through the air conditioner heat exchanger are both in a conduction state, and the fresh air heat exchanger and the air conditioner heat exchanger both absorb heat or release heat.
The common heat exchange command may include at least one of a common dehumidification command, a common cooling command, and a common heating command, that is, the air conditioner may have at least one of a common dehumidification mode, a common cooling mode, and a common heating mode. In addition, for the received control instruction being the common heat exchange instruction, the air conditioner fan can be started before the common heat exchange instruction is received, and the refrigerant flowing through the air conditioner heat exchanger is conducted, that is, before the common heat exchange instruction is received, the air conditioner assembly of the air conditioner is in a corresponding heat exchange state, and after the common heat exchange instruction is received, the air conditioner assembly still keeps normal operation and only controls the fresh air assembly to exchange heat.
Or after receiving the common heat exchange instruction, the air conditioner fan may be turned on to conduct the refrigerant flow path flowing through the air conditioner heat exchanger. For example, before the common heat exchange instruction is received, the air conditioner is in a closed state, and after the common heat exchange instruction is received, the air conditioner fan is turned on to conduct a refrigerant flow path flowing through the air conditioner heat exchanger.
Taking the received common heat exchange instruction as a common dehumidification instruction as an example, in a common dehumidification mode, airflow flowing along a fresh air path is changed into cold airflow with relatively low temperature after exchanging heat with a fresh air heat exchanger in a fresh air cavity, the cold airflow flows into the room from a fresh air outlet, the indoor airflow flows into the air conditioning cavity from an indoor air return inlet under the action of an air conditioning fan, the cold airflow also changes into cold airflow with relatively low temperature after exchanging heat with the air conditioning heat exchanger in the air conditioning cavity, the cold airflow flows into the room from an indoor air outlet, and the cold airflow flowing into the room from the fresh air outlet and the cold airflow flowing into the room from the indoor air outlet dehumidify the room jointly.
The common cooling mode and the common dehumidification mode are substantially the same and will not be described herein.
Taking the received common heat exchange instruction as a common heating instruction as an example, in a common heating mode, after heat exchange is performed between the airflow flowing along the fresh air path and the fresh air heat exchanger in the fresh air cavity, the airflow becomes hot airflow with relatively high temperature, the hot airflow flows into the room from the fresh air outlet, the indoor airflow flows into the air conditioning cavity from the indoor air return inlet under the action of the air conditioning fan, and also becomes hot airflow with relatively high temperature after heat exchange is performed between the air conditioning cavity and the air conditioning heat exchanger, the hot airflow flows into the room from the indoor air outlet, and the hot airflow flowing into the room from the fresh air outlet and the hot airflow flowing into the room from the indoor air outlet jointly heat the room.
In one embodiment, when the air conditioner is in an operation mode corresponding to the control instruction, the control method further includes: and adjusting the running frequency of the compressor according to preset conditions.
That is, the operation frequency of the compressor may be adjusted up or down to change the intensity of dehumidification, cooling or heating according to actual needs.
Exemplarily, taking a control instruction as a fresh air independent dehumidification instruction or a common dehumidification instruction as an example, the adjusting the operating frequency of the compressor according to the preset condition includes: if the first difference value between the outdoor inlet air humidity and the set humidity is larger than or equal to a first set value, the operation frequency of the compressor is increased.
The set humidity may be a humidity set by the user himself or a humidity set by the system as a default.
It is understood that the first set point should be greater than 0% RH.
That is, the outdoor inlet air humidity may be obtained, a first difference between the outdoor inlet air humidity and the set humidity may be calculated, and if the first difference is greater than a first set value, it indicates that the humidity of the fresh air introduced outdoors is relatively high, so that the operation frequency of the compressor may be increased to improve the dehumidification strength.
If Δ d1 represents a first difference between the set humidity and the current indoor humidity, and Q1 represents a first set value, the above-mentioned adjustment manner can be represented as: if delta d1 > Q1, the operating frequency of the compressor is increased.
In some embodiments, the first difference between the outdoor inlet air humidity and the set humidity can also be greater than or equal to the first set value, i.e., if Δ d1 ≧ Q1, the operating frequency of the compressor is adjusted up.
Still taking the control instruction as the fresh air independent dehumidification instruction or the common dehumidification instruction as an example, the adjusting the operating frequency of the compressor according to the preset condition may further include: and if the first difference value between the outdoor inlet air humidity and the set humidity is smaller than a second set value, reducing the operating frequency of the compressor, wherein the second set value is smaller than the first set value.
It is understood that the second set point should also be greater than 0% RH.
That is, if the first difference is smaller than the second set value, it indicates that the humidity of the fresh air introduced outdoors is relatively low, and therefore, the operation frequency of the compressor can be adjusted to be low, so as to reduce the dehumidification intensity.
With Q2 representing the second setting value, the above-mentioned adjustment manner can be represented as: and if the Delta d1 is less than Q2, the operation frequency of the compressor is reduced.
In some embodiments, the first difference between the outdoor inlet air humidity and the set humidity can be less than or equal to the second set value, that is, if Δ d1 is less than or equal to Q2, the operating frequency of the compressor is decreased.
In some embodiments, the operating frequency of the compressor may also be adjusted according to the difference between the set humidity and the indoor humidity.
In an embodiment, if the received control command is a fresh air independent dehumidification command, adjusting the operating frequency of the compressor may include: determining a first target evaporation temperature currently required by a fresh air heat exchanger; and adjusting the operating frequency of the compressor according to the determined first target evaporation temperature.
That is, a plurality of first target evaporation temperatures may be set in advance, which of the first target evaporation temperatures is selected may be determined according to a preset condition, and then the operating frequency of the compressor may be adjusted according to the determined first target evaporation temperature.
Three sub-modes of strong dehumidification, normal dehumidification and micro dehumidification may be set in the fresh air independent dehumidification mode, taking the first setting value as 20% RH, the second setting value as 10% RH as an example. The first target evaporation temperature of the fresh air heat exchanger set in the powerful dehumidification sub-mode is Tc1 (for example, tc1 may be 8 degrees), the first target evaporation temperature of the fresh air heat exchanger set in the conventional dehumidification sub-mode is Tc2 (for example, tc2 may be 10 degrees), and the first target evaporation temperature of the fresh air heat exchanger set in the micro dehumidification sub-mode is Tc3 (for example, tc3 may be 12 degrees).
If a first difference Δ d1 between the set humidity and the current indoor humidity satisfies: and D1, enabling the power dehumidification sub-mode to be started according to the RH of more than 20 percent, and adjusting the operation frequency of the compressor according to the first target evaporation temperature Tc1 of the fresh air heat exchanger.
If a first difference Δ d1 between the set humidity and the current indoor humidity satisfies: Δ d1 < 10 rh, the micro-dehumidification sub-mode is opened, and the operating frequency of the compressor is adjusted according to the first target evaporation temperature Tc3 of the fresh air heat exchanger.
If a first difference Δ d1 between the set humidity and the current indoor humidity satisfies: 10% rh ≦ Δ d1 ≦ 20% rh, the conventional dehumidification sub-mode is opened, the operating frequency of the compressor is adjusted according to the first target evaporation temperature Tc2 of the fresh air heat exchanger.
In another embodiment, if the received control command is a common dehumidification command, adjusting the operating frequency of the compressor may include: determining a second target evaporation temperature currently required by the whole system; and adjusting the operating frequency of the compressor according to the determined second target evaporation temperature.
The whole system described in the application refers to a system in which an air conditioner heat exchanger and a fresh air heat exchanger share the same compressor. The second target evaporation temperature currently required by the whole system refers to the target evaporation temperature currently required by the air-conditioning heat exchanger and the fresh air heat exchanger, and for the whole system, the target evaporation temperature currently required by the air-conditioning heat exchanger is the same as the target evaporation temperature currently required by the fresh air heat exchanger.
A plurality of second target evaporation temperatures may be preset, which of the second target evaporation temperatures is selected may be determined according to a preset condition, and then the operating frequency of the compressor may be adjusted according to the determined second target evaporation temperature.
Still taking the first set value as 20% rh and the second set value as 10% rh as an example, three sub-modes of strong dehumidification, normal dehumidification and micro dehumidification may be provided in the common dehumidification mode. Wherein the second target evaporation temperature of the entire system set in the forced dehumidification sub-mode is Tc1 '(for example, tc1' may be 8 ℃), the second target evaporation temperature of the entire system set in the conventional dehumidification sub-mode is Tc2 '(for example, tc2' may be 10 ℃), and the second target evaporation temperature of the entire system set in the micro dehumidification sub-mode is Tc3 '(for example, tc3' may be 12 ℃).
If the first difference Δ d1 between the set humidity and the current indoor humidity satisfies: and D1, enabling the power dehumidification sub-mode to be started according to the RH of more than 20 percent, and adjusting the operation frequency of the compressor according to the second target evaporation temperature Tc1 of the whole system.
If the first difference Δ d1 between the set humidity and the current indoor humidity satisfies: Δ d1 < 10 rh, the micro-dehumidification sub-mode is turned on, and the operating frequency of the compressor is adjusted according to the second target evaporation temperature Tc3 of the entire system.
If the first difference Δ d1 between the set humidity and the current indoor humidity satisfies: 10% rh ≦ Δ d1 ≦ 20% rh, the conventional dehumidification sub-mode is turned on and the operating frequency of the compressor is adjusted according to the second target evaporation temperature Tc2 of the total system.
Exemplarily, taking a control instruction as an independent fresh air refrigeration instruction or a common refrigeration instruction as an example, the adjusting the operating frequency of the compressor according to the preset condition includes: and if the second difference value between the indoor temperature and the first set temperature is greater than the third set value, increasing the operating frequency of the compressor.
The first set temperature may be a temperature set by the user himself or a temperature set by default by the system.
It will be appreciated that the third set point should be greater than 0 deg.c.
That is, the indoor temperature may be acquired, and a second difference between the indoor temperature and the first set temperature may be calculated, and if the second difference is greater than a third set value, it indicates that the current indoor temperature is relatively high, and thus, the operating frequency of the compressor may be increased to increase the intensity of cooling.
With Δ d2 representing the second difference between the indoor temperature and the first set temperature, and Q3 representing the third set value, the above-mentioned adjusting manner can be represented as: if delta d2 is more than Q3, the operating frequency of the compressor is increased.
In some embodiments, the second difference between the indoor temperature and the first set temperature can also be greater than or equal to the third set value, i.e., if Δ d2 ≧ Q3, the operating frequency of the compressor is adjusted up.
Illustratively, still taking the control instruction as the fresh air independent refrigeration instruction or the common refrigeration instruction as an example, the adjusting the operating frequency of the compressor according to the preset condition may further include: and if the second difference value between the indoor temperature and the first set temperature is smaller than a fourth set value, reducing the running frequency of the compressor, wherein the fourth set value is smaller than the third set value.
It will be appreciated that the fourth setting should also be greater than 0 deg.c.
That is, if the second difference is smaller than the fourth set value, it indicates that the current indoor temperature is relatively low, or the current indoor temperature is close to the first set temperature, and therefore, the operation frequency of the compressor may be adjusted to decrease the intensity of cooling.
And Q4 represents the fourth setting value, the above-mentioned adjustment mode can be represented as: and if the delta d2 is less than Q4, the operation frequency of the compressor is reduced.
In some embodiments, the second difference between the outdoor intake air temperature and the set temperature may also be less than or equal to the fourth set value, that is, if d2 ≦ Q4, the operating frequency of the compressor may be decreased.
In an embodiment, if the received control command is a fresh air independent refrigeration command, adjusting the operating frequency of the compressor may include: determining a first target evaporation temperature currently required by a fresh air heat exchanger; and adjusting the operating frequency of the compressor according to the determined first target evaporation temperature.
Taking the third set value as 5 ℃ and the fourth set value as 2 ℃ as an example, three sub-modes of strong refrigeration, conventional refrigeration and micro-refrigeration can be set in the fresh air independent refrigeration mode. The first target evaporation temperature of the fresh air heat exchanger set in the strong refrigeration sub-mode is Tc1 (for example, tc1 may be 8 ℃), the first target evaporation temperature of the fresh air heat exchanger set in the conventional refrigeration sub-mode is Tc2 (for example, tc2 may be 10 ℃), and the first target evaporation temperature of the fresh air heat exchanger set in the micro refrigeration sub-mode is Tc3 (for example, tc3 may be 12 ℃).
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and delta d2 is more than 5 ℃, a powerful refrigeration sub-mode is started, and the operation frequency of the compressor is adjusted according to the first target evaporation temperature Tc1 of the fresh air heat exchanger.
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and (4) enabling the micro-refrigeration sub-mode when the delta d2 is less than 2 ℃, and adjusting the operation frequency of the compressor according to the first target evaporation temperature Tc3 of the fresh air heat exchanger.
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and delta d2 is more than or equal to 2 ℃ and less than or equal to 5 ℃, starting the conventional refrigeration sub-mode, and adjusting the operation frequency of the compressor according to the first target evaporation temperature Tc2 of the fresh air heat exchanger.
In another embodiment, if the received control command is a common cooling command, adjusting the operating frequency of the compressor may include: determining a first target evaporation temperature currently required by the whole system; and adjusting the operating frequency of the compressor according to the determined first target evaporation temperature.
Still taking the third set value as 5 ℃ and the fourth set value as 2 ℃ as an example, three sub-modes of strong refrigeration, normal refrigeration and micro refrigeration can be set in the common refrigeration mode. Wherein the first target evaporation temperature of the entire system set in the powerful refrigerant sub-mode is Tc1 '(for example, tc1' may be 8 ℃), the first target evaporation temperature of the entire system set in the normal refrigerant sub-mode is Tc2 '(for example, tc2' may be 10 ℃), and the first target evaporation temperature of the entire system set in the micro refrigerant sub-mode is Tc3 '(for example, tc3' may be 12 ℃).
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and delta d2 is more than 5 ℃, a powerful refrigeration sub-mode is started, and the operation frequency of the compressor is adjusted according to the first target evaporation temperature Tc1 of the whole system.
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and (3) enabling the micro-refrigeration sub-mode when the delta d2 is less than 2 ℃, and adjusting the operation frequency of the compressor according to the first target evaporation temperature Tc3 of the whole system.
If the second difference Δ d2 between the indoor temperature and the first set temperature satisfies: and D2 is more than or equal to 2 ℃ and less than or equal to 5 ℃, starting a conventional refrigeration sub-mode, and adjusting the running frequency of the compressor according to the first target evaporation temperature Tc2 of the whole system.
In addition, no matter in the fresh air independent refrigeration mode or the common refrigeration mode, if the indoor temperature is lower than the first set temperature, that is, the indoor temperature is reduced to be lower than the first set temperature through refrigeration, the compressor can be controlled to stop running, and the refrigeration can be stopped equivalently. Wherein, under the independent refrigeration of new trend, after the compressor stall, the new trend fan can keep open mode, also can close. In the common cooling mode, after the compressor stops operating, the fresh air fan and the air conditioner fan may be kept in an open state, or at least one of them may be closed.
Exemplarily, taking a control instruction as an independent fresh air heating instruction or a common heating instruction as an example, adjusting the operating frequency of the compressor according to a preset condition includes: and if the third difference value between the second set temperature and the indoor temperature is greater than or equal to the fifth set value, the operating frequency of the compressor is increased.
The second set temperature may be a temperature set by the user himself or a temperature set by default by the system.
It will be appreciated that the fifth set point should be greater than 0 deg.c.
That is, the indoor temperature may be acquired, and a third difference between the second set temperature and the indoor temperature may be calculated, and if the third difference is greater than a fifth set value, it indicates that the current indoor temperature is relatively low, and therefore, the operating frequency of the compressor may be increased to increase the intensity of heating.
When Δ d3 represents a third difference between the second set temperature and the indoor temperature, and Q5 represents a fifth set value, the above-mentioned adjustment manner can be expressed as: if Δ d3 > Q5, the operating frequency of the compressor is increased.
In some embodiments, the third difference between the second set temperature and the indoor temperature can be equal to or greater than the fifth set value, that is, if Δ d3 ≧ Q5, the operating frequency of the compressor is increased.
Still taking the control instruction as the fresh air independent heating instruction or the common heating instruction as an example, the adjusting the operating frequency of the compressor according to the preset condition may further include: and if the third difference value between the indoor temperature and the second set temperature is smaller than a sixth set value, reducing the operating frequency of the compressor, wherein the sixth set value is smaller than the fifth set value.
It will be appreciated that the sixth set point should also be greater than 0 deg.c.
That is, if the third difference is smaller than the sixth setting value, it indicates that the current indoor temperature is relatively high, or the current indoor temperature is close to the second setting temperature, and therefore, the operation frequency of the compressor may be adjusted to decrease the intensity of heating.
And Q6 represents the sixth setting value, the above-mentioned adjustment mode can be represented as: and if the Delta d3 is less than Q6, the operation frequency of the compressor is reduced.
In some embodiments, the third difference between the outdoor intake air temperature and the set temperature may also be less than or equal to the sixth set value, that is, if d2 ≦ Q6, the operating frequency of the compressor may be decreased.
In an embodiment, if the received control command is a fresh air independent heating command, adjusting the operating frequency of the compressor may include: determining a first target condensing temperature currently required by a fresh air heat exchanger; and adjusting the operating frequency of the compressor according to the determined first target condensing temperature.
Similar to the first target condensing temperature, a plurality of first target condensing temperatures may be preset, which of the first target condensing temperatures is selected may be determined according to preset conditions, and then the operating frequency of the compressor may be adjusted according to the determined first target condensing temperature.
Taking the fifth set value of 10 ℃ and the sixth set value of 5 ℃ as an example, three sub-modes of powerful heating, conventional heating and micro-heating can be set in the fresh air independent heating mode. The first target condensation temperature of the fresh air heat exchanger set in the powerful heating sub-mode is Th1 (for example, th1 may be 50 ℃), the first target condensation temperature of the fresh air heat exchanger set in the conventional heating sub-mode is Th2 (for example, th2 may be 45 ℃), and the first target condensation temperature of the fresh air heat exchanger set in the micro-heating sub-mode is Th3 (for example, th3 may be 42 ℃).
If the third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and the delta d3 is more than 10 ℃, a powerful heating sub-mode is started, and the operation frequency of the compressor is adjusted according to the first target condensation temperature Th1 of the fresh air heat exchanger.
If the third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and (4) enabling a micro heating sub-mode if the Delta d3 is less than 5 ℃, and adjusting the operating frequency of the compressor according to the first target condensation temperature Th3 of the fresh air heat exchanger.
If the third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and delta d3 is more than or equal to 5 ℃ and less than or equal to 10 ℃, starting a conventional heating sub-mode, and adjusting the operating frequency of the compressor according to the first target condensation temperature Th2 of the fresh air heat exchanger.
In another embodiment, if the received control command is a common heating command, adjusting the operating frequency of the compressor may include: determining a second target condensing temperature currently required by the whole system; and adjusting the operating frequency of the compressor according to the determined second target condensing temperature.
The second target condensation temperature currently required by the whole system refers to the target condensation temperature currently required by the air-conditioning heat exchanger and the fresh air heat exchanger, and for the whole system, the target condensation temperature currently required by the air-conditioning heat exchanger is the same as the target condensation temperature currently required by the fresh air heat exchanger.
A plurality of second target condensing temperatures may be preset, which of the second target condensing temperatures is selected may be determined according to a preset condition, and then the operating frequency of the compressor may be adjusted according to the determined second target condensing temperature.
Still taking the fifth set value of 10 ℃ and the sixth set value of 5 ℃ as an example, three sub-modes of powerful heating, conventional heating and micro-heating can be set in the common heating mode. The first target condensation temperature of the entire system set in the strong heating sub-mode is Th1 '(for example, th1' may be 50 ℃), the first target condensation temperature of the entire system set in the normal heating sub-mode is Th2 '(for example, th2' may be 45 ℃), and the first target condensation temperature of the entire system set in the micro heating sub-mode is Th3 '(for example, th3' may be 42 ℃).
If a third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and delta d3 is more than 10 ℃, a powerful heating sub-mode is started, and the operation frequency of the compressor is adjusted according to the first target condensation temperature Th1' of the whole system.
If the third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and (3) enabling a micro heating sub-mode when the delta d3 is less than 5 ℃, and adjusting the operating frequency of the compressor according to the first target condensation temperature Th3' of the whole system.
If the third difference Δ d3 between the second set temperature and the indoor temperature satisfies: and delta d3 is more than or equal to 5 ℃ and less than or equal to 10 ℃, starting a conventional heating sub-mode, and adjusting the operating frequency of the compressor according to the first target condensation temperature Th2' of the whole system.
In addition, in both the fresh air independent heating mode and the common heating mode, if the indoor temperature is higher than the second set temperature, that is, the indoor temperature is raised to be higher than the second set temperature by heating, the operation of the compressor can be controlled to be stopped, which corresponds to stopping of heating. Wherein, under the independent heating of new trend, after the compressor stall, the new trend fan can keep at open mode, also can close. In the common heating mode, after the compressor stops operating, the fresh air fan and the air conditioning fan may be kept in an open state, or at least one of them may be closed.
In the description of the present application, reference to the description of the terms "an embodiment," "in some embodiments," "other embodiments," or "exemplary" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples described herein may be combined by one skilled in the art without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (15)

1. The utility model provides a machine in new trend air conditioning which characterized in that includes:
the air conditioner comprises a shell, wherein an air conditioner cavity with an indoor air return opening and an indoor air outlet and a fresh air cavity with a fresh air inlet and a fresh air outlet are arranged in the shell, and a fresh air path is formed between the fresh air inlet and the fresh air outlet;
the air conditioning assembly is arranged in the air conditioning cavity and comprises an air conditioning heat exchanger;
the fresh air component is arranged in the fresh air cavity and comprises a fresh air heat exchanger and a fresh air fan, and the fresh air heat exchanger and the fresh air fan are located on the fresh air path.
2. The indoor unit of a fresh air conditioner as claimed in claim 1, wherein the indoor unit comprises a refrigerant pipeline and a switch assembly, the air conditioner heat exchanger, the fresh air heat exchanger and the switch are all arranged on the refrigerant pipeline, and the switch assembly is used for conducting a refrigerant flow path flowing through the air conditioner heat exchanger and/or a refrigerant flow path flowing through the fresh air heat exchanger.
3. The fresh air indoor unit of claim 2, wherein the air-conditioning heat exchanger and the fresh air heat exchanger are connected in parallel, and the fresh air indoor unit comprises the switch assembly which comprises an air-conditioning switch valve and a fresh air switch valve; the air conditioner switch valve is used for selectively switching on or switching off a refrigerant flow path flowing through the air conditioner heat exchanger, and the fresh air switch valve is used for selectively switching on or switching off the refrigerant flow path flowing through the fresh air heat exchanger.
4. The fresh air-conditioning indoor unit of any one of claims 1 to 3, wherein the air-conditioning assembly comprises an air-conditioning water pan, and the fresh air assembly comprises a fresh air water pan which is communicated with the air-conditioning water pan so that condensed water is discharged through one of the fresh air water pan and the air-conditioning water pan.
5. A fresh air conditioner, characterized in that, comprises the fresh air conditioner indoor unit of any one of claims 1 to 4.
6. A fresh air control method for a fresh air conditioner as claimed in claim 5, wherein the control method comprises:
receiving a control instruction;
starting a fresh air fan;
and the refrigerant flow path flowing through the fresh air heat exchanger is communicated.
7. The fresh air control method according to claim 6, wherein the control command is a fresh air independent heat exchange command for controlling the fresh air heat exchanger to perform independent heat exchange, and the fresh air independent heat exchange command includes at least one of a fresh air independent dehumidification command, a fresh air independent refrigeration command, and a fresh air independent heating command; and/or the presence of a gas in the gas,
the control instruction is a common heat exchange instruction for controlling the fresh air heat exchanger and the air conditioner heat exchanger to carry out heat exchange together, and the common heat exchange instruction comprises at least one of a common dehumidification instruction, a common refrigeration instruction and a common heating instruction.
8. The fresh air control method according to claim 7, wherein the control command is the common heat exchange command, and before or after receiving the common heat exchange command, the control method further comprises:
starting an air conditioner fan;
and conducting a refrigerant flow path flowing through the air-conditioning heat exchanger.
9. The fresh air control method according to claim 7, wherein when the air conditioner is in an operation mode corresponding to the control command, the control method further comprises:
and adjusting the running frequency of the compressor according to preset conditions.
10. The fresh air control method according to claim 9, wherein the control command is the fresh air independent dehumidification command or the common dehumidification command, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the first difference value between the outdoor inlet air humidity and the set humidity is larger than or equal to a first set value, the running frequency of the compressor is increased; and/or the presence of a gas in the atmosphere,
and if the first difference value between the outdoor inlet air humidity and the set humidity is less than or equal to the second set value, reducing the running frequency of the compressor, wherein the second set value is less than the first set value.
11. The fresh air control method according to claim 9, wherein the control command is the fresh air independent refrigeration command or the common refrigeration command, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the second difference value between the indoor temperature and the first set temperature is greater than or equal to a third set value, increasing the operating frequency of the compressor; and/or the presence of a gas in the atmosphere,
and if the second difference value between the indoor temperature and the first set temperature is less than or equal to the fourth set value, reducing the running frequency of the compressor, wherein the fourth set value is less than the third set value.
12. The fresh air control method according to claim 11, wherein if the indoor temperature is lower than the first set temperature, the compressor is controlled to stop operating.
13. The fresh air control method according to claim 9, wherein the control command is the fresh air independent heating command or the common heating command, and the adjusting the operating frequency of the compressor according to the preset condition includes:
if the third difference value between the second set temperature and the indoor temperature is greater than or equal to a fifth set value, increasing the operating frequency of the compressor; and/or the presence of a gas in the gas,
and if a third difference value between the second set temperature and the indoor temperature is less than or equal to a sixth set value, reducing the operating frequency of the compressor, wherein the sixth set value is less than the fifth set value.
14. The fresh air control method according to claim 13, wherein if the indoor temperature is higher than the second set temperature, the compressor is controlled to stop operating.
15. The fresh air control method according to claim 9, wherein if the received control command is the fresh air independent dehumidification command or the fresh air independent refrigeration command, adjusting an operating frequency of a compressor includes: determining a first target evaporation temperature currently required by the fresh air heat exchanger; adjusting the operating frequency of the compressor according to the determined first target evaporation temperature; and/or the presence of a gas in the gas,
if the received control instruction is the common dehumidification instruction or the common refrigeration instruction, adjusting the operating frequency of the compressor, including: determining a second target evaporation temperature currently required by the whole system; adjusting the operating frequency of the compressor according to the determined second target evaporation temperature; and/or the presence of a gas in the gas,
if the received control command is the fresh air independent heating command, adjusting the operating frequency of the compressor, including: determining a first target condensing temperature currently required by the fresh air heat exchanger; adjusting the operating frequency of the compressor according to the determined first target condensing temperature; and/or the presence of a gas in the gas,
if the received control command is the common heating command, adjusting the operating frequency of the compressor, including: determining a second target condensing temperature currently required by the whole system; adjusting the operating frequency of the compressor according to the determined second target condensing temperature.
CN202210903732.6A 2022-07-28 2022-07-28 Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method Pending CN115264622A (en)

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CN202210903732.6A CN115264622A (en) 2022-07-28 2022-07-28 Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210903732.6A CN115264622A (en) 2022-07-28 2022-07-28 Fresh air conditioner indoor unit, fresh air conditioner and fresh air control method

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CN115264622A true CN115264622A (en) 2022-11-01

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