CN110822617B - Control method for air conditioner and air conditioner - Google Patents
Control method for air conditioner and air conditioner Download PDFInfo
- Publication number
- CN110822617B CN110822617B CN201810917616.3A CN201810917616A CN110822617B CN 110822617 B CN110822617 B CN 110822617B CN 201810917616 A CN201810917616 A CN 201810917616A CN 110822617 B CN110822617 B CN 110822617B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- compressor
- mode
- indoor unit
- reducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
-
- 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
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
Abstract
The invention belongs to the technical field of air conditioners, and aims to solve the problems that the existing air conditioner can frequently switch on and off a compressor during refrigeration/heating, so that the indoor environment temperature fluctuation is large, the comfort level of a user is reduced, and the service life of the compressor is prolonged, so that the invention provides a control method for the air conditioner and the air conditioner, wherein the control method comprises the following steps: acquiring the indoor environment temperature and the current operation mode of the air conditioner; and selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening of the electronic expansion valve and the rotating speed of a fan of the indoor unit according to the indoor environment temperature and the current operation mode of the air conditioner. The invention can avoid large fluctuation of indoor environment temperature, thereby improving the comfort level of users, and the compressor only carries out frequency reduction and frequency increase operation in the mode switching process without stopping, thereby avoiding frequent opening and closing of the compressor, and further prolonging the service life of the compressor.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a control method for an air conditioner and the air conditioner.
Background
An air conditioner is an apparatus capable of cooling/heating an indoor space, and the control logic of the conventional air conditioner is roughly as follows: under the working condition of refrigeration, an indoor fan rotates, a compressor rotates and an electronic expansion valve is opened, the air conditioner stops refrigeration after the indoor temperature reaches the target temperature, the indoor fan continues to rotate, the compressor stops rotating and the electronic expansion valve is closed, then the indoor temperature rises, the air conditioner restarts refrigeration after the indoor temperature rises to a certain degree, and at the moment, the compressor starts to rotate again and the electronic expansion valve is opened; in the heating condition, the indoor fan rotates, the compressor rotates and the electronic expansion valve is opened, the air conditioner stops heating after the indoor temperature reaches the target temperature, the indoor fan continues to rotate, the compressor stops rotating and the electronic expansion valve is closed, then the indoor temperature is reduced, the air conditioner restarts heating after the indoor temperature is reduced to a certain degree, and the compressor starts to rotate again and the electronic expansion valve is opened. Therefore, the existing air conditioner can frequently turn on and off the compressor no matter in refrigeration or heating, so that the fluctuation of the indoor environment temperature is large, the comfort level of a user is reduced, and the service life of the compressor is shortened.
Therefore, there is a need in the art for a new control method for an air conditioner and a corresponding air conditioner to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems that the conventional air conditioner may frequently turn on and off the compressor during cooling/heating, thereby causing large fluctuation of the indoor environment temperature, lowering the comfort level of a user, and prolonging the service life of the compressor, the present invention provides a control method for an air conditioner, the air conditioner includes an indoor unit, an outdoor unit, a compressor, and an electronic expansion valve, the indoor unit, the compressor, the outdoor unit, and the electronic expansion valve form a closed-loop refrigerant circulation system, the control method includes: acquiring the indoor environment temperature and the current operation mode of the air conditioner; and selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening of the electronic expansion valve and the rotating speed of a fan of the indoor unit according to the indoor environment temperature and the current operation mode of the air conditioner.
In a preferred embodiment of the above control method, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve, and the fan speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner includes: if the current operation mode of the air conditioner is a refrigeration mode and the indoor environment temperature reaches a first preset temperature, the operation mode of the air conditioner is switched to a breeze mode, the frequency of a compressor is reduced, the opening degree of an electronic expansion valve is reduced, and the rotating speed of a fan of an indoor unit is reduced.
In a preferred embodiment of the above control method, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening of the electronic expansion valve, and the fan speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner further includes: and if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature reaches a second preset temperature, switching the operation mode of the air conditioner into a refrigeration mode, increasing the frequency of a compressor, increasing the opening degree of an electronic expansion valve and increasing the rotating speed of a fan of the indoor unit, wherein the second preset temperature is higher than the first preset temperature.
In a preferred embodiment of the above control method, while the step of "reducing the frequency of the compressor, reducing the opening of the electronic expansion valve, and reducing the rotational speed of the fan of the indoor unit" is performed, the control method further includes: and adjusting an air deflector of the indoor unit to a first limit position, wherein the first limit position is the highest position of the air deflector.
In a preferred technical solution of the above control method, the air deflector of the indoor unit is provided with a plurality of air outlets, and the control method further includes, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit" are performed: the air deflector of the indoor unit is adjusted to a closed position.
In a preferred embodiment of the above control method, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve, and the fan speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner includes: and if the current operation mode of the air conditioner is a heating mode and the indoor environment temperature reaches a third preset temperature, switching the operation mode of the air conditioner into a breeze mode, reducing the frequency of a compressor, reducing the opening degree of an electronic expansion valve and reducing the rotating speed of a fan of an indoor unit.
In a preferred embodiment of the above control method, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening of the electronic expansion valve, and the fan speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner further includes: and if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature reaches a fourth preset temperature, switching the operation mode of the air conditioner into a heating mode, increasing the frequency of a compressor, increasing the opening degree of an electronic expansion valve and increasing the rotating speed of a fan of the indoor unit, wherein the fourth preset temperature is lower than the third preset temperature.
In a preferred embodiment of the above control method, while the step of "reducing the frequency of the compressor, reducing the opening of the electronic expansion valve, and reducing the rotational speed of the fan of the indoor unit" is performed, the control method further includes: and adjusting the air deflector of the indoor unit to a second extreme position, wherein the second extreme position is the lowest position of the air deflector.
In a preferred technical solution of the above control method, the air deflector of the indoor unit is provided with a plurality of air outlets, and the control method further includes, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit" are performed: the air deflector of the indoor unit is adjusted to a closed position.
In another aspect, the present invention also provides an air conditioner including a controller configured to be able to perform the control method described above.
It can be understood by those skilled in the art that, in the preferred technical solution of the present invention, the indoor ambient temperature and the current operating mode of the air conditioner are obtained first, and then according to the indoor ambient temperature and the current operating mode of the air conditioner, whether to switch the operating mode of the air conditioner and adjust the frequency of the compressor, the opening degree of the electronic expansion valve and the fan rotating speed of the indoor unit are judged. Specifically, if the current operation mode of the air conditioner is a refrigeration mode, normal refrigeration is stopped when the indoor environment temperature reaches a target temperature (such as a required temperature set by a user), a breeze mode is entered, that is, the rotation speed of an indoor fan is reduced and low-rotation-speed (gear) operation is kept, and the compressor is in frequency reduction operation but not stopped, and meanwhile, the opening degree of an electronic expansion valve is reduced, so that the indoor environment temperature does not rise sharply but rises slowly, the comfort level of the user is improved, and after the indoor environment temperature rises to a certain degree, the air conditioner is switched from the breeze mode to the normal refrigeration mode, and at the moment, the compressor is only required to be in frequency increase operation, the rotation speed of the indoor fan is improved, and the opening degree of the electronic expansion valve is increased; if the current operation mode of the air conditioner is a heating mode, normal heating is stopped when the indoor environment temperature reaches a target temperature (such as a required temperature set by a user), a breeze mode is entered, namely, the rotating speed of an indoor fan is reduced and low rotating speed (gear) operation is kept, and the compressor is in frequency reduction operation but not stopped, and meanwhile, the opening degree of an electronic expansion valve is reduced, so that the indoor environment temperature does not drop rapidly but slowly, the comfort level of the user is improved, and after the indoor environment temperature drops to a certain degree, the air conditioner is switched to the normal heating mode from the breeze mode, at the moment, the compressor is only required to be in frequency increasing operation, the rotating speed of the indoor fan is improved, and the opening degree of the electronic expansion valve is increased. Therefore, compared with the prior art, in the process of cooling/heating of the air conditioner, if the indoor environment temperature reaches the target temperature, the air conditioner can directly enter a breeze mode, so that the indoor environment temperature does not change rapidly, the indoor environment temperature is kept near the target temperature as long as possible, the indoor environment temperature is prevented from generating large fluctuation, the comfort level of a user is further improved, the compressor is only subjected to frequency reduction and frequency increase operation in the mode switching process and is not stopped, the compressor is prevented from being frequently opened and closed, and the service life of the compressor is prolonged.
Furthermore, when the air deflector is not provided with the air outlet and the air conditioner is switched from the refrigeration mode to the breeze mode, the air deflector is adjusted to the highest position, so that the refrigerating gas blown out by the air conditioner can be prevented from being blown downwards and directly blown, the phenomenon that the refrigerating gas makes human body feel uncomfortable is avoided, and the comfort level of a user is further improved.
Furthermore, when the air deflector does not have the air outlet and the air conditioner is switched from the heating mode to the breeze mode, the air deflector is adjusted to the lowest position, so that the heating air blown out by the air conditioner can be prevented from being accumulated above the room and not moving to the lower part of the room later, the heating air can not contact with the human body in time, the air conditioner cannot be heated by a user, and the comfort of the user is further improved.
Furthermore, when the air deflector is provided with the air outlet and the air conditioner is switched from the cooling/heating mode to the breeze mode, the air deflector can be completely closed and air is supplied to the room through the air outlet on the air deflector, so that the air conditioner can continuously blow out breeze, the indoor environment temperature cannot be rapidly changed, and the user experience is improved.
In addition, the air conditioner further provided on the basis of the technical scheme of the invention has the technical effects of the control method due to the adoption of the control method, and compared with the air conditioner before improvement, the air conditioner provided by the invention does not frequently switch on and off the compressor when refrigerating/heating the indoor environment, so that the indoor environment temperature does not fluctuate greatly, the comfortable experience of a user is improved, and the service life of the compressor is prolonged.
Drawings
Fig. 1 is a flowchart of a control method of an air conditioner of the present invention;
FIG. 2 is a flow chart of a first embodiment of a method for controlling an air conditioner according to the present invention;
fig. 3 is a flowchart of a second embodiment of a method for controlling an air conditioner according to the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that the terms "first", "second", "third" and "fourth" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention discloses a control method for an air conditioner and the air conditioner based on the problems that the compressor is frequently opened and closed when the existing air conditioner refrigerates/heats, so that the fluctuation of the indoor environment temperature is large, the comfort of a user is reduced, and the service life of the compressor is prolonged.
Specifically, the air conditioner of the present invention includes an indoor unit, an outdoor unit, a compressor, and an electronic expansion valve, where the indoor unit, the compressor, the outdoor unit, and the electronic expansion valve form a closed-loop refrigerant circulation system, as shown in fig. 1, and the control method of the present invention includes: acquiring the indoor environment temperature and the current operation mode of the air conditioner; and selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening of the electronic expansion valve and the rotating speed of a fan of the indoor unit according to the indoor environment temperature and the current operation mode of the air conditioner. The adjusting of the frequency of the compressor, the opening degree of the electronic expansion valve and the fan speed of the indoor unit may be performed while the operation mode of the air conditioner is switched, or may be performed after the operation mode of the air conditioner is switched, that is, the frequency of the compressor, the opening degree of the electronic expansion valve and the fan speed of the indoor unit are adjusted while or after the air conditioner receives the switching instruction. In addition, the adjustment of the frequency of the compressor, the adjustment of the opening degree of the electronic expansion valve, and the adjustment of the fan rotation speed of the indoor unit may be performed synchronously or asynchronously, and those skilled in the art may flexibly set the execution sequence of the adjustment of the frequency of the compressor, the adjustment of the opening degree of the electronic expansion valve, and the adjustment of the fan rotation speed of the indoor unit in practical applications, as long as the switching of the operation mode of the air conditioner can be realized and the combination control of the frequency of the compressor, the opening degree of the electronic expansion valve, and the fan rotation speed of the indoor unit is performed, and such changes of the sequence of the adjustment of the frequency of the compressor, the adjustment of the opening degree of the electronic expansion valve, and the adjustment of the fan rotation speed of the indoor unit should not constitute limitations of the present invention.
Preferably, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve, and the fan rotation speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner includes: if the current operation mode of the air conditioner is a refrigeration mode and the indoor environment temperature reaches a first preset temperature, switching the operation mode of the air conditioner into a breeze mode, reducing the frequency of a compressor, reducing the opening degree of an electronic expansion valve and reducing the rotating speed of a fan of an indoor unit; if the current operation mode of the air conditioner is a refrigeration mode and the indoor environment temperature does not reach the first preset temperature, the air conditioner does not switch the operation mode and does not adjust the frequency of the compressor, the opening degree of the electronic expansion valve and the rotating speed of the fan of the indoor unit. The first preset temperature can be a target temperature set by a user, namely, the air conditioner can be switched from a normal refrigeration mode to a breeze mode and reduce the frequency of the compressor only when the indoor environment temperature reaches the required temperature set by the user, and the opening degree of the electronic expansion valve and the rotating speed of a fan of the indoor unit are reduced. Of course, the first preset temperature may also be a temperature value preset for the air conditioner by a person skilled in the art according to an experiment, or a temperature value preset for the air conditioner by a person skilled in the art according to an experience. The first preset temperature is not limited to the specific temperature value. Further preferably, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve and the fan rotation speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner further comprises: if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature reaches a second preset temperature, switching the operation mode of the air conditioner into a refrigeration mode, increasing the frequency of a compressor, increasing the opening degree of an electronic expansion valve and increasing the rotating speed of a fan of an indoor unit; and if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature does not reach a second preset temperature, not switching the operation mode of the air conditioner into the refrigeration mode and not adjusting the frequency of the compressor, the opening degree of the electronic expansion valve and the rotating speed of a fan of the indoor unit, wherein the second preset temperature is higher than the first preset temperature. Compared with the technical scheme that the compressor is directly and completely stopped in the prior art, the technical scheme of the invention can ensure that the indoor environment temperature is increased at a very slow speed, and when the indoor environment temperature is increased to the second preset temperature, the air conditioner needs to be switched from the breeze mode to the refrigeration mode again to perform normal refrigeration. In the above technical solution, the second preset temperature may be set to be 1 degree celsius higher than the first preset temperature, or 2 degrees celsius, and a person skilled in the art may flexibly set a specific temperature value of the second preset temperature according to multiple tests, experience of the person, climate or region, and other factors in practical application, as long as the temperature demarcation point determined by the second preset temperature enables the air conditioner to be switched from the breeze mode to the cooling mode.
Further preferably, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the rotation speed of the fan of the indoor unit" are performed, the control method of the present invention further includes: and adjusting an air deflector of the indoor unit to a first limit position, wherein the first limit position is the highest position of the air deflector. The control mode is suitable for the structure without micro air outlet holes on the air deflector of the indoor unit of the air conditioner, because the air blown out by the indoor unit of the air conditioner is cold air after the refrigeration mode is switched to the micro air mode, the cold air has higher specific gravity than the indoor air and can sink in the indoor air, if the position of the air deflector is set to be lower, the air blown out by the indoor unit is easy to blow directly to the human body, so that the human body feels uncomfortable and even sick.
Further preferably, the air deflector of the indoor unit is provided with a plurality of air outlets, and the control method further includes, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit" are performed: the air deflector of the indoor unit is adjusted to a closed position. Corresponding to the above embodiment, if the air deflector itself has a plurality of air outlets (preferably, micro-holes), the air deflector of the indoor unit can be directly closed, and then the micro-refrigeration of the indoor unit can be realized.
Preferably, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve, and the fan rotation speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner includes: if the current operation mode of the air conditioner is a heating mode and the indoor environment temperature reaches a third preset temperature, the operation mode of the air conditioner is switched to a breeze mode, the frequency of a compressor is reduced, the opening degree of an electronic expansion valve is reduced, and the rotating speed of a fan of an indoor unit is reduced; and if the current operation mode of the air conditioner is a heating mode and the indoor environment temperature does not reach a third preset temperature, the operation mode of the air conditioner is not switched into a breeze mode and the frequency of the compressor, the opening degree of the electronic expansion valve and the rotating speed of a fan of the indoor unit are not adjusted. The third preset temperature can be a target temperature set by a user, that is, only when the indoor environment temperature reaches a required temperature set by the user, the air conditioner is switched from the normal heating mode to the breeze mode, the frequency of the compressor is reduced, the opening degree of the electronic expansion valve is reduced, and the rotating speed of a fan of the indoor unit is reduced. Of course, the third preset temperature may also be a temperature value preset for the air conditioner by a person skilled in the art according to an experiment, or a temperature value preset for the air conditioner by a person skilled in the art according to an experience. The third predetermined temperature is not limited to the specific temperature value. Further preferably, the step of selectively switching the operation mode of the air conditioner and adjusting the frequency of the compressor, the opening degree of the electronic expansion valve and the fan rotation speed of the indoor unit according to the indoor ambient temperature and the current operation mode of the air conditioner further comprises: if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature reaches the fourth preset temperature, switching the operation mode of the air conditioner into a heating mode, increasing the frequency of a compressor, increasing the opening degree of an electronic expansion valve and increasing the rotating speed of a fan of an indoor unit; and if the current operation mode of the air conditioner is the breeze mode and the indoor environment temperature does not reach a fourth preset temperature, not switching the operation mode of the air conditioner into the heating mode and not adjusting the frequency of the compressor, the opening degree of the electronic expansion valve and the rotating speed of a fan of the indoor unit, wherein the fourth preset temperature is lower than the third preset temperature. Compared with the technical scheme that the compressor is directly and completely stopped in the prior art, the technical scheme of the invention can reduce the indoor environment temperature at a very slow speed, and when the indoor environment temperature is reduced to the fourth preset temperature, the air conditioner needs to be switched from the breeze mode to the heating mode again to carry out normal heating. In the above technical solution, the fourth preset temperature may be set to be 1 degree celsius lower than the third preset temperature, or 2 degrees celsius, and a person skilled in the art may flexibly set a specific temperature value of the fourth preset temperature according to multiple tests, experience of the person, climate or region, and other factors in practical application, as long as the temperature demarcation point determined by the fourth preset temperature enables the air conditioner to be switched from the breeze mode to the heating mode.
Further preferably, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the rotational speed of the fan of the indoor unit" are performed, the control method further includes: and adjusting the air deflector of the indoor unit to a second extreme position, wherein the second extreme position is the lowest position of the air deflector. The control mode is suitable for the structure without micro air outlet holes on the air deflector of the indoor unit of the air conditioner, because the air blown out by the indoor unit of the air conditioner is hot air after the heating mode is switched to the micro air mode, the specific gravity of the hot air is smaller than that of the indoor air, the hot air can float in the indoor air, if the position of the air deflector is higher, the air blown out by the indoor unit can completely float above the indoor, so that a human body can not feel the micro heating of the air conditioner, therefore, under the working condition, the invention can blow the hot air to the lowest part in the indoor as far as possible by arranging the position of the air deflector of the indoor unit at the lowest position, and then the hot air can float upwards uniformly and slowly in the indoor, thereby the indoor air can be heated uniformly, and the comfort level of a user is improved.
Further preferably, the air deflector of the indoor unit is provided with a plurality of air outlets, and the control method further includes, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit" are performed: the air deflector of the indoor unit is adjusted to a closed position. Corresponding to the above embodiment, if the air deflector itself has a plurality of air outlets (preferably, micro-holes), the air deflector of the indoor unit can be directly closed, and then micro-heating can be achieved indoors.
It should be noted that, in the above technical solution, the first preset temperature and the third preset temperature may be set to equal temperature values or may be set to unequal temperature values, and a person skilled in the art may flexibly set the relative relationship between the first preset temperature and the third preset temperature in practical application. In addition, when the cooling/heating mode is switched to the breeze mode, the frequency of the compressor can be adjusted to 1/3 or lower, and those skilled in the art can flexibly set the actual operating frequency of the compressor in the breeze mode in practical application. Similarly, in the breeze mode, the opening degree of the electronic expansion valve may be adjusted to 52/100, or other opening degrees, and those skilled in the art may flexibly set the actual opening degree of the electronic expansion valve in the breeze mode in practical applications. In the breeze mode, the fan speed of the indoor unit is preferably set to the lowest speed.
The technical solution of the present invention is further illustrated below with reference to two examples.
Example one
As shown in fig. 2, the air conditioner performs a cooling mode; acquiring the indoor environment temperature; judging whether the indoor environment temperature reaches a first preset temperature T1; if so, the air conditioner is switched from the refrigeration mode to the breeze mode, then the frequency of the compressor is reduced, the opening degree of the electronic expansion valve is reduced, the rotating speed of a fan of the indoor unit is reduced, and an air deflector of the indoor unit is adjusted to the highest position; if not, the operation mode of the air conditioner is not adjusted and the indoor ambient temperature continues to be acquired. After the air conditioner is switched from the refrigeration mode to the breeze mode, continuously acquiring the indoor environment temperature, and judging whether the indoor environment temperature reaches a second preset temperature T2; if so, the air conditioner is switched from the breeze mode to the refrigeration mode, then the frequency of the compressor is increased, the opening degree of the electronic expansion valve is increased, the fan rotating speed of the indoor unit is increased, and the air deflector is adjusted to a normal refrigeration position; if not, the operation mode of the air conditioner is not adjusted and the indoor ambient temperature continues to be acquired.
Example two
As shown in fig. 3, the air conditioner performs a heating mode; acquiring the indoor environment temperature; judging whether the indoor environment temperature reaches a third preset temperature T3; if so, the air conditioner is switched from the heating mode to the breeze mode, then the frequency of the compressor is reduced, the opening degree of the electronic expansion valve is reduced, the rotating speed of a fan of the indoor unit is reduced, and an air deflector of the indoor unit is adjusted to the lowest position; if not, the operation mode of the air conditioner is not adjusted and the indoor ambient temperature continues to be acquired. After the air conditioner is switched from the heating mode to the breeze mode, continuously acquiring the indoor environment temperature, and judging whether the indoor environment temperature reaches a fourth preset temperature T4; if so, the air conditioner is switched from the breeze mode to the heating mode, then the frequency of the compressor is increased, the opening degree of the electronic expansion valve is increased, the rotating speed of a fan of the indoor unit is increased, and the air deflector is adjusted to a normal heating position; if not, the operation mode of the air conditioner is not adjusted and the indoor ambient temperature continues to be acquired.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (6)
1. A control method for an air conditioner, the air conditioner comprises an indoor unit, an outdoor unit, a compressor and an electronic expansion valve, the indoor unit, the compressor, the outdoor unit and the electronic expansion valve form a closed-loop refrigerant circulation system, and the control method comprises the following steps:
acquiring an indoor ambient temperature and a current operation mode of the air conditioner;
if the current operation mode of the air conditioner is a refrigeration mode and the indoor environment temperature reaches a first preset temperature, switching the operation mode of the air conditioner into a breeze mode, reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve and reducing the rotating speed of a fan of the indoor unit;
if the current operation mode of the air conditioner is a breeze mode and the indoor environment temperature reaches a second preset temperature, switching the operation mode of the air conditioner into a refrigeration mode, increasing the frequency of the compressor, increasing the opening degree of the electronic expansion valve and increasing the fan rotating speed of the indoor unit;
if the current operation mode of the air conditioner is a heating mode and the indoor environment temperature reaches a third preset temperature, switching the operation mode of the air conditioner into a breeze mode, reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve and reducing the rotating speed of a fan of the indoor unit;
if the current operation mode of the air conditioner is a breeze mode and the indoor environment temperature reaches a fourth preset temperature, switching the operation mode of the air conditioner into a heating mode, increasing the frequency of the compressor, increasing the opening degree of the electronic expansion valve and increasing the fan rotating speed of the indoor unit;
the second preset temperature is higher than the first preset temperature, and the fourth preset temperature is lower than the third preset temperature.
2. The control method according to claim 1, wherein in case that the current operation mode of the air conditioner is a cooling mode and the indoor ambient temperature reaches the first preset temperature, the control method further comprises, along with the steps of "reducing the compressor frequency, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit":
adjusting the air deflector of the indoor unit to a first limit position,
the first limit position is the highest position of the air deflector.
3. The control method according to claim 1, wherein in a case where the current operation mode of the air conditioner is a cooling mode and the indoor ambient temperature reaches the first preset temperature, a plurality of air outlets are provided in an air deflector of the indoor unit, and the control method further comprises, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the rotational speed of a fan of the indoor unit":
and adjusting the air deflector of the indoor unit to a closed position.
4. The control method according to claim 1, wherein in case that the current operation mode of the air conditioner is a heating mode and the indoor ambient temperature reaches the third preset temperature, the control method further comprises, along with the steps of "reducing the compressor frequency, reducing the opening degree of the electronic expansion valve, and reducing the fan rotation speed of the indoor unit":
adjusting the air deflector of the indoor unit to a second limit position,
the second limit position is the lowest position of the air deflector.
5. The control method according to claim 1, wherein in a case where the current operation mode of the air conditioner is a heating mode and the indoor ambient temperature reaches the third preset temperature, a plurality of air outlets are provided in an air deflector of the indoor unit, and the control method further comprises, while the steps of "reducing the frequency of the compressor, reducing the opening degree of the electronic expansion valve, and reducing the rotation speed of a fan of the indoor unit":
and adjusting the air deflector of the indoor unit to a closed position.
6. An air conditioner comprising a controller, characterized in that the controller is configured to be able to perform the control method of any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917616.3A CN110822617B (en) | 2018-08-13 | 2018-08-13 | Control method for air conditioner and air conditioner |
| PCT/CN2019/083648 WO2020034659A1 (en) | 2018-08-13 | 2019-04-22 | Control method for air conditioner, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917616.3A CN110822617B (en) | 2018-08-13 | 2018-08-13 | Control method for air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110822617A CN110822617A (en) | 2020-02-21 |
| CN110822617B true CN110822617B (en) | 2021-07-27 |
Family
ID=69525050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917616.3A Active CN110822617B (en) | 2018-08-13 | 2018-08-13 | Control method for air conditioner and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110822617B (en) |
| WO (1) | WO2020034659A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944581A (en) * | 2019-12-10 | 2021-06-11 | 青岛海尔空调电子有限公司 | Control method of air conditioner and air conditioner |
| CN111550902B (en) * | 2020-04-13 | 2021-10-22 | 宁波奥克斯电气股份有限公司 | Control method and control device of air conditioner, storage medium, indoor unit and air conditioner |
| WO2021214931A1 (en) * | 2020-04-23 | 2021-10-28 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioning system and control method |
| CN111780372B (en) * | 2020-07-09 | 2021-11-23 | 青岛海尔空调器有限总公司 | Control method of one-driving-multiple air conditioner |
| CN114383303A (en) * | 2020-10-19 | 2022-04-22 | 广东美的精密模具科技有限公司 | Dehumidification control method and device, air conditioner and storage medium |
| CN113091267B (en) * | 2021-04-16 | 2022-08-16 | 海信（广东）空调有限公司 | Control method of air conditioner |
| CN114543297A (en) * | 2022-01-17 | 2022-05-27 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090081869A (en) * | 2008-01-25 | 2009-07-29 | 위니아만도 주식회사 | Method for controlling overload of indoor unit |
| CN103225864B (en) * | 2013-04-24 | 2015-04-15 | 广东美的制冷设备有限公司 | Control method allowing inverter air conditioner to intelligently switch to silent mode |
| US20150177748A1 (en) * | 2013-12-19 | 2015-06-25 | Chen-Mei LO | Control system and method for energy smart fan |
| JP2016090113A (en) * | 2014-10-31 | 2016-05-23 | ダイキン工業株式会社 | Air conditioner |
| CN105020855A (en) * | 2015-07-24 | 2015-11-04 | 广东美的制冷设备有限公司 | Variable frequency air conditioner control method and system |
| CN105135627B (en) * | 2015-09-24 | 2018-02-02 | 广东美的制冷设备有限公司 | Air-conditioning system and its control method and control device |
| CN106091259B (en) * | 2016-06-17 | 2018-11-02 | 珠海格力电器股份有限公司 | It is a kind of for the control method of air-conditioning, device and air-conditioning |
| CN107525206A (en) * | 2016-10-31 | 2017-12-29 | 广东美的制冷设备有限公司 | A kind of control method of air conditioner, control device and air conditioner |
| JP6906311B2 (en) * | 2017-01-10 | 2021-07-21 | 三菱電機株式会社 | Air conditioner |
| CN106839352B (en) * | 2017-01-24 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of air-conditioner control system and its control method |
| CN107575994B (en) * | 2017-09-04 | 2019-12-31 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| CN107421078B (en) * | 2017-09-04 | 2020-05-29 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| CN107906700A (en) * | 2017-10-19 | 2018-04-13 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device and computer-readable recording medium |
| CN108224676B (en) * | 2018-01-04 | 2021-03-16 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and readable storage medium |
-
2018
- 2018-08-13 CN CN201810917616.3A patent/CN110822617B/en active Active
-
2019
- 2019-04-22 WO PCT/CN2019/083648 patent/WO2020034659A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020034659A1 (en) | 2020-02-20 |
| CN110822617A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110822617B (en) | Control method for air conditioner and air conditioner | |
| CN107013978B (en) | Air conditioner indoor unit and air supply method thereof | |
| CN110195922B (en) | Air guide angle control method and device and air conditioner | |
| CN108344126B (en) | Air conditioning system, indoor unit of air conditioning system, and method of controlling the same | |
| CN101592389B (en) | Control method for improving outlet air temperature comfort of air conditioner | |
| CN104697118B (en) | The adjusting method of air conditioner, the regulating device of air conditioner and air conditioner | |
| CN106500242B (en) | Air conditioner operation control method | |
| CN101424434B (en) | Air conditioner control method and air conditioner control device | |
| CN109724202B (en) | Air conditioner and control method thereof | |
| JP2006317142A (en) | Vane controlling method for ceiling type air conditioner | |
| CN111795466A (en) | Air conditioner heating and air-releasing control method and device, air conditioner and computer readable storage medium | |
| CN104566768A (en) | Air conditioner and control method thereof | |
| CN107726567B (en) | Control method and system of fresh air machine, fresh air machine and multi-split air conditioning system | |
| CN108692423B (en) | Defrosting control method for air conditioner | |
| CN108168018B (en) | Heating control method for air conditioner | |
| CN108731220A (en) | Air conditioning control method, apparatus and system | |
| CN104456887A (en) | Air outlet device, air conditioner and control method for air outlet device | |
| CN112254300B (en) | Wall-mounted air conditioner and control method thereof | |
| CN110500734B (en) | Water multi-split air conditioning system and control method thereof | |
| JP2012083011A (en) | Air conditioner | |
| JP5695861B2 (en) | Outside air processing air conditioner and multi air conditioning system using the same | |
| CN109140719B (en) | Method for controlling air-out temperature of air conditioner | |
| JP2020532703A (en) | Methods, devices, and air conditioners for controlling air conditioners | |
| CN113623839A (en) | Air conditioner control method and air conditioner | |
| CN109210692A (en) | A kind of automatic air conditionning method and air-conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210713 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |