CN112283896B - Air conditioner and fresh air module self-starting noise control method - Google Patents
Air conditioner and fresh air module self-starting noise control method Download PDFInfo
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- CN112283896B CN112283896B CN202010981371.8A CN202010981371A CN112283896B CN 112283896 B CN112283896 B CN 112283896B CN 202010981371 A CN202010981371 A CN 202010981371A CN 112283896 B CN112283896 B CN 112283896B
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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
- 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
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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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- 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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- 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
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- 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
Abstract
The invention discloses an air conditioner and a control method of self-starting noise of a fresh air module, wherein a controller of the air conditioner is configured as follows: acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module; if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed; and continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and preset wind speed change values corresponding to the preset wind speed increasing periods until the wind speed of the fresh air fan reaches the current accumulated target wind speed, so that the noise generated when the fresh air module is started automatically can be effectively controlled.
Description
Technical Field
The application relates to the field of air conditioner control, in particular to a control method for self-starting noise of an air conditioner and a fresh air module.
Background
The existing air conditioner only circularly heats or cools indoor air when heating or cooling, and meanwhile, a user can simultaneously close a room door of a room in order to keep indoor temperature, so that the indoor air quality is gradually deteriorated, and the adverse effect is caused on the body health of the user. Particularly, in recent years, the air pollution is increasingly serious, and people are reluctant to open windows for ventilation particularly in winter heating seasons, so that the indoor air quality is increasingly poor, the oxygen content is increasingly low, and the physical health is affected.
Many air conditioners have a fresh air module at present, and the fresh air module has special fresh air fan. Some air conditioners possess new trend module automatic start function, when detecting that indoor carbon dioxide concentration exceeds standard promptly, new trend module automatic start, the operation of new trend fan to provide the new trend indoor. Because the noise of the fresh air fan is large, the sudden opening can cause the noise of the whole air conditioner to be increased suddenly, and the use feeling of a user is influenced, especially when the use environment is quiet or the user sleeps and has a rest. Many of these current air conditioning products do not have a dedicated noise control function for this purpose, resulting in a poor user experience.
Therefore, how to provide an air conditioner capable of effectively controlling noise when the fresh air module is started is a technical problem to be solved at present.
Disclosure of Invention
The embodiment of the invention provides an air conditioner, which is used for solving the technical problem that the noise of the whole air conditioner is suddenly increased after a fresh air module is automatically started in the prior art.
The air conditioner includes:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
an outdoor heat exchanger and an indoor heat exchanger, wherein one of the heat exchangers operates as a condenser and the other operates as an evaporator;
an indoor fan for introducing airflow through the suction inlet and sending the airflow out through the outlet after passing through the indoor heat exchanger;
the fresh air module comprises a fresh air fan and a carbon dioxide concentration detection module and is used for providing fresh air indoors;
the controller is configured to include:
acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module;
if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed;
continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed;
the preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time, and the current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan.
In some embodiments of the present application, the controller is further configured to:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
and if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed.
In some embodiments of the present application, the controller is further configured to:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
In some embodiments of the present application, the controller is further configured to:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
when an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function;
in some embodiments of the present application, the controller is further configured to:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
Correspondingly, the invention also provides a control method of the self-starting noise of the fresh air module, the method is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor fan, the fresh air module and a controller, and the method comprises the following steps:
acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module;
if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed;
continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed;
the preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time, and the current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan.
In some embodiments of the present application, before the wind speed of the fresh air fan is continuously increased based on a plurality of preset wind speed increase periods and a preset wind speed variation value corresponding to each of the preset wind speed increase periods, the method further includes:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
and if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed.
In some embodiments of the present application, after determining the self-starting target wind speed as the current accumulated target wind speed or determining the current wind speed as the current accumulated target wind speed, the method further comprises:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
In some embodiments of the present application, the method further comprises:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
when an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function;
in some embodiments of the present application, the method further comprises:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
By applying the above technical solution, the controller of the air conditioner is configured to: acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module; if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed; the wind speed of the fresh air fan is continuously increased based on a plurality of preset wind speed increasing periods and preset wind speed change values corresponding to the preset wind speed increasing periods until the wind speed of the fresh air fan reaches the current accumulated target wind speed, and the fresh air fan is started at a low speed firstly and then slowly increased after the fresh air module is automatically started, so that discomfort caused by sudden increase of noise of the whole machine to a user is prevented, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a circuit diagram schematically showing the configuration of an air conditioner according to the embodiment.
Fig. 2 is a schematic flow chart illustrating a method for controlling the self-starting noise of the fresh air module according to an embodiment of the present invention.
Description of the reference symbols
1: an air conditioner; 2: an outdoor unit; 3: an indoor unit; 10: a refrigerant circuit; 11: a compressor; 12: a four-way valve; 13: an outdoor heat exchanger;
14: an expansion valve; 16: an indoor heat exchanger; 21: an outdoor fan; 31: an indoor fan; 32: an indoor temperature sensor; 33: indoor heat exchanger temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to 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 those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a 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. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can 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 and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
Fig. 1 shows a circuit configuration of an air conditioner 1, and the air conditioner 1 includes a refrigerant circuit 10, and is capable of executing a vapor compression refrigeration cycle by circulating a refrigerant in the refrigerant circuit 10. The indoor unit 3 and the outdoor unit 2 are connected by a connecting pipe 4 to form a refrigerant circuit 10 in which a refrigerant circulates. The refrigerant circuit 10 includes a compressor 11, an outdoor heat exchanger 13, an expansion valve 14, an accumulator 15, and an indoor heat exchanger 16. Among them, the indoor heat exchanger 16 and the outdoor heat exchanger 13 operate as a condenser or an evaporator. The compressor 11 sucks the refrigerant from the suction port, and discharges the refrigerant compressed therein to the indoor heat exchanger 16 from the discharge port. The compressor 11 is an inverter compressor with variable capacity that performs rotational speed control by an inverter, and the four-way valve 12 switches between heating and cooling.
The outdoor heat exchanger 13 has a first inlet and a second outlet for allowing the refrigerant to flow between the refrigerant and the suction port of the compressor 11 through the accumulator 15, and the refrigerant flows between the refrigerant and the expansion valve 14. The outdoor heat exchanger 13 exchanges heat between the outdoor air and the refrigerant flowing through a heat transfer pipe (not shown) connected between the second inlet and the first inlet of the outdoor heat exchanger 13.
The expansion valve 14 is disposed between the outdoor heat exchanger 13 and the indoor heat exchanger 16. The expansion valve 14 has a function of expanding and decompressing the refrigerant flowing between the outdoor heat exchanger 13 and the indoor heat exchanger 16. The expansion valve 14 is configured to be capable of changing the opening degree, and by decreasing the opening degree, the flow path resistance of the refrigerant passing through the expansion valve 14 is increased, and by increasing the opening degree, the flow path resistance of the refrigerant passing through the expansion valve 14 is decreased. The expansion valve 14 expands and decompresses the refrigerant flowing from the indoor heat exchanger 16 to the outdoor heat exchanger 13 during the heating operation. Further, even if the states of other devices installed in the refrigerant circuit 10 do not change, when the opening degree of the expansion valve 14 changes, the flow rate of the refrigerant flowing in the refrigerant circuit 10 changes.
The indoor heat exchanger 16 has a second inlet and outlet for allowing the liquid refrigerant to flow between the expansion valve 14 and the indoor heat exchanger, and has a first inlet and outlet for allowing the gas refrigerant to flow between the compressor 11 and the discharge port. The indoor heat exchanger 16 exchanges heat between the refrigerant flowing through the heat transfer pipe connected between the second inlet and the first inlet and the second outlet of the indoor heat exchanger 16 and the indoor air.
An accumulator 15 is disposed between the outdoor heat exchanger 13 and the suction port of the compressor 11. In the accumulator 15, the refrigerant flowing from the outdoor heat exchanger 13 to the compressor 11 is separated into a gas refrigerant and a liquid refrigerant. Then, the gas refrigerant is mainly supplied from the accumulator 15 to the suction port of the compressor 11.
The outdoor unit 2 further includes an outdoor fan 21, and the outdoor fan 21 generates an airflow of outdoor air passing through the outdoor heat exchanger 13 to promote heat exchange between the refrigerant flowing through the heat transfer tubes and the outdoor air. The outdoor fan 21 is driven by an outdoor fan motor 21A capable of changing the rotation speed. The indoor unit 3 further includes an indoor fan 31, and the indoor fan 31 generates an airflow of the indoor air passing through the indoor heat exchanger 16 to promote heat exchange between the refrigerant flowing through the heat transfer tubes and the indoor air. The indoor fan 31 is driven by an indoor fan motor 31A whose rotation speed can be changed.
As described in the background art, in the prior art, after the fresh air module is automatically started, the overall noise of the air conditioner is suddenly increased, which affects the user experience.
To solve the above problems, an embodiment of the present invention provides an air conditioner including a refrigerant circulation circuit, a compressor, an outdoor heat exchanger, an indoor fan, a fresh air module, and a controller, wherein the controller is configured to:
acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module;
if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed;
continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed;
the preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time, and the current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan.
In this embodiment, the new trend module of air conditioner includes new trend fan and carbon dioxide concentration detection module for to indoor fresh air that provides, carbon dioxide concentration detection module is used for detecting the carbon dioxide concentration of indoor space. When the preset starting condition of the fresh air module is reached, the fresh air module is started and the fresh air fan is started. The preset self-starting condition can be that the carbon dioxide concentration is not less than the first set concentration and the maintaining time length is not less than the first set time length, optionally, the fresh air module can be started periodically in consideration of keeping the higher air quality of the indoor space, and the preset self-starting condition can also be that the time length from the last closing time of the fresh air module to the current time point is greater than the time length threshold value, so that the fresh air module can be started periodically even if the carbon dioxide concentration does not reach the first set concentration, and the indoor air quality is improved.
The air conditioner in this embodiment further includes a preset noise control function for controlling the self-starting noise of the fresh air module, and after the air conditioner is started, if the preset noise control function is detected in an open state and the fresh air module reaches a preset starting condition, the fresh air fan is started based on a preset minimum wind speed, the preset minimum wind speed can be preset, and can also be set after a user inputs an instruction. The current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan, wherein the self-starting target wind speed is the target wind speed when the preset noise function is in a closed state and the fresh air module is self-started, and the self-starting target wind speed is larger than the preset minimum wind speed.
In order to determine an accurate current accumulated target wind speed, in a preferred embodiment of the present application, the controller is further configured to:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
and if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed.
As described above, the current wind speed and the self-starting target wind speed are compared, and the smaller one of the current wind speed and the self-starting target wind speed is determined as the current accumulated target wind speed, so that the fresh air volume delivered by the fresh air module is ensured, and the control degree of the noise generated after the normal operation of the fresh air module is matched with the operation state of the current air conditioner. If the current accumulated target wind speed is smaller current wind speed, after the wind speed of the fresh air module is increased, noise generated by the whole air conditioner cannot be increased obviously, and therefore the influence degree on a user is reduced to the minimum.
For reliable increase of the wind speed of the fresh air fan, in a preferred implementation of the present application, the controller is further configured to:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
Determining a total change value of the wind speed of the fresh air fan by determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to a ratio of the difference value to the number of the preset wind speed adjusting periods.
The skilled person may also determine the preset wind speed variation value based on other ways, for example, setting a different wind speed variation value in each preset wind speed adjustment period, or making each preset wind speed adjustment period different, as long as the current accumulated target wind speed is finally reached, which does not affect the protection scope of the present application.
In order to ensure that the carbon dioxide concentration of the indoor space is reduced quickly, the sum of the preset wind speed adjusting periods is not more than a second set time length, so that the fresh air module outputs enough fresh air as soon as possible to reduce the carbon dioxide concentration of the indoor space.
In order to accurately control the noise when the fresh air module is started automatically according to the instruction of the user, in a preferred embodiment of the present application, the controller is further configured to:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
when an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function;
specifically, a user can send a starting instruction for starting noise control to the controller through a remote controller or a display screen key or an intelligent terminal, after the controller receives the starting instruction, a preset noise control function is started, and prompt information of the preset noise control function in a starting state is returned to the user, wherein the prompt information can display an icon corresponding to the noise control on the remote controller or the display screen or the intelligent terminal. The controller also writes the opening instruction into the electrified erasable programmable read-only memory for setting and storing, so that the air conditioner is executed according to the last stored opening instruction after being powered off and electrified again. The air conditioner can be defaulted to start a preset noise control function when leaving a factory.
If a user wants to adjust the wind speed of the fresh air fan, an adjusting instruction of the wind speed of the fresh air fan is sent to a controller, and after the adjusting instruction is received, the preset noise control function is closed; and if a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function.
In order to avoid sudden noise increase in the air conditioner off state, in a preferred embodiment of the present application, the controller is further configured to:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
And if the user selects not to perform noise control, the fresh air fan is started according to the self-starting target wind speed when the fresh air module is started no matter the air conditioner is started or shut down.
In order to expand the adjustable range of the current wind speed, in a preferred embodiment of the present application, the current wind speed includes a first wind speed corresponding to a preset high wind level, a second wind speed corresponding to a preset medium wind level, a third wind speed corresponding to a preset low wind level, a fourth wind speed corresponding to a preset mute level, and a fifth wind speed corresponding to a preset high-efficiency wind level.
By applying the above technical solution, the controller of the air conditioner is configured to: acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module; if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed; the wind speed of the fresh air fan is continuously increased based on a plurality of preset wind speed increasing periods and preset wind speed change values corresponding to the preset wind speed increasing periods until the wind speed of the fresh air fan reaches the current accumulated target wind speed, and the fresh air fan is started at a low speed firstly and then slowly increased after the fresh air module is automatically started, so that discomfort caused by sudden increase of noise of the whole machine to a user is prevented, and the user experience is improved.
Corresponding to the air conditioner in the embodiment of the present application, the embodiment of the present application further provides a control method for the self-starting noise of the fresh air module, which is applied to the air conditioner including a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor fan, the fresh air module and a controller, as shown in fig. 2, the method includes the following steps:
step S201, acquiring the carbon dioxide concentration of the indoor space when the air conditioner operates based on the carbon dioxide concentration detection module.
Step S202, if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed.
The preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time.
Step S203, continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed.
The current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan.
In order to determine an accurate current accumulated target wind speed, in a preferred embodiment of the present application, before continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increase cycles and a preset wind speed variation value corresponding to each of the preset wind speed increase cycles, the method further includes:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
and if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed.
For reliably increasing the wind speed of the fresh air fan, in a preferred implementation of the present application, after determining the self-starting target wind speed as the current accumulated target wind speed or determining the current wind speed as the current accumulated target wind speed, the method further includes:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
The skilled person may also determine the preset wind speed variation value based on other ways, for example, setting a different wind speed variation value in each preset wind speed adjustment period, or making each preset wind speed adjustment period different, as long as the current accumulated target wind speed is finally reached, which does not affect the protection scope of the present application.
In order to accurately control the noise when the fresh air module is started automatically according to the instruction of the user, in a preferred embodiment of the present application, the method further includes:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
when an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function;
in order to avoid sudden noise increase in the air conditioner off state, in a preferred embodiment of the present application, the method further comprises:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
In order to expand the adjustable range of the current wind speed, in a preferred embodiment of the present application, the current wind speed includes a first wind speed corresponding to a preset high wind level, a second wind speed corresponding to a preset medium wind level, a third wind speed corresponding to a preset low wind level, a fourth wind speed corresponding to a preset mute level, and a fifth wind speed corresponding to a preset high-efficiency wind level.
By applying the technical scheme, in the air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor fan, a fresh air module and a controller, the carbon dioxide concentration of an indoor space in the operation of the air conditioner is obtained based on the carbon dioxide concentration detection module; if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed; the wind speed of the fresh air fan is continuously increased based on a plurality of preset wind speed increasing periods and preset wind speed change values corresponding to the preset wind speed increasing periods until the wind speed of the fresh air fan reaches the current accumulated target wind speed, and the fresh air fan is started at a low speed firstly and then slowly increased after the fresh air module is automatically started, so that discomfort caused by sudden increase of noise of the whole machine to a user is prevented, and the user experience is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (6)
1. An air conditioner, characterized in that the air conditioner comprises:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
an outdoor heat exchanger and an indoor heat exchanger, wherein one of the heat exchangers operates as a condenser and the other operates as an evaporator;
an indoor fan for introducing airflow through the suction inlet and sending the airflow out through the outlet after passing through the indoor heat exchanger;
the fresh air module comprises a fresh air fan and a carbon dioxide concentration detection module and is used for providing fresh air indoors;
the controller is configured to include:
acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module;
if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed;
continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed;
the preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time, and the current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan;
the controller is further configured to:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed;
the controller is further configured to:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
2. The air conditioner of claim 1, wherein the controller is further configured to:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
and when receiving an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner, which is sent by a user, closing the preset noise control function.
3. The air conditioner of claim 1, wherein the controller is further configured to:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
4. A control method for fresh air module self-starting noise is characterized in that the method is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor fan, a fresh air module and a controller, the fresh air module comprises a fresh air fan and a carbon dioxide concentration detection module, and the method comprises the following steps:
acquiring the carbon dioxide concentration of an indoor space when the air conditioner operates based on the carbon dioxide concentration detection module;
if the preset noise control function is in an opening state and the fresh air module reaches a preset starting condition, starting the fresh air fan based on a preset minimum air speed;
continuously increasing the wind speed of the fresh air fan based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period until the wind speed of the fresh air fan reaches the current accumulated target wind speed;
the preset starting condition is that the concentration of the carbon dioxide is not less than a first set concentration and the maintaining time is not less than a first set time, and the current accumulated target wind speed is determined according to the current wind speed of the indoor fan and the self-starting target wind speed of the fresh air fan;
before the wind speed of the fresh air fan is continuously increased based on a plurality of preset wind speed increasing periods and a preset wind speed change value corresponding to each preset wind speed increasing period, the method further comprises the following steps:
detecting the current wind speed, and comparing the current wind speed with the self-starting target wind speed;
if the current wind speed is not less than the self-starting target wind speed, determining the self-starting target wind speed as the current accumulated target wind speed;
if the current wind speed is less than the self-starting target wind speed, determining the current wind speed as the current accumulated target wind speed;
after determining the self-starting target wind speed as the current accumulated target wind speed or determining the current wind speed as the current accumulated target wind speed, the method further comprises:
determining a difference value between the current accumulated target wind speed and the preset lowest wind speed, and determining the preset wind speed change value according to the ratio of the difference value to the number of the preset wind speed adjustment periods, wherein the sum of the preset wind speed adjustment periods is not more than a second set time length.
5. The method of claim 4, wherein the method further comprises:
when a noise control starting instruction sent by a user is received, storing the starting instruction, starting the preset noise control function based on the starting instruction, and returning prompt information of the preset noise control function in a starting state to the user;
when an adjusting instruction of the wind speed of the fresh air fan, a closing instruction of the fresh air module or a shutdown instruction of the air conditioner sent by a user is received, closing the preset noise control function;
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
6. The method of claim 4, wherein the method further comprises:
and if the air conditioner is in a shutdown state and the preset noise control function is in an open state, keeping the fresh air module in a closed state.
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| CN108518797A (en) * | 2018-02-23 | 2018-09-11 | 珠海格力电器股份有限公司 | Control method, the device and system of air-conditioning |
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| JP3867416B2 (en) * | 1998-09-25 | 2007-01-10 | ダイキン工業株式会社 | Air conditioner |
| CN1758171B (en) * | 2004-10-10 | 2010-05-12 | 仁宝电脑工业股份有限公司 | Method for automatic fine regulating rotation speed of heat radiation fan |
| CN106152373B (en) * | 2015-03-25 | 2019-12-03 | 大金工业株式会社 | The control method and air conditioner indoor unit of air conditioner indoor unit |
| CN107504616A (en) * | 2017-08-18 | 2017-12-22 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device |
| CN109556188B (en) * | 2018-11-21 | 2024-03-05 | 广东美的制冷设备有限公司 | Air conditioner and control method and control device thereof |
| CN109724226B (en) * | 2018-12-13 | 2021-05-25 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
| CN111412577B (en) * | 2020-03-31 | 2021-10-12 | 宁波奥克斯电气股份有限公司 | Noise control method and device, fresh air conditioner and readable storage medium |
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