CN113669844A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
- Publication number
- CN113669844A CN113669844A CN202111007561.0A CN202111007561A CN113669844A CN 113669844 A CN113669844 A CN 113669844A CN 202111007561 A CN202111007561 A CN 202111007561A CN 113669844 A CN113669844 A CN 113669844A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- heat exchanger
- indoor heat
- compressor
- electromagnetic valve
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- 239000003245 coal Substances 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 56
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000011086 high cleaning Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 16
- 238000010257 thawing Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- 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
Abstract
The invention discloses an air conditioner and a control method thereof, wherein the air conditioner comprises an electromagnetic valve and a throttling device which are connected in parallel between an indoor heat exchanger and an outdoor heat exchanger; the control method comprises the following steps: when the air conditioner enters a self-cleaning mode, S1, the air conditioner operates in a refrigerating mode, the electromagnetic valve is closed, the throttling device throttles, and cold coal in the compressor flows to the indoor heat exchanger from the outdoor heat exchanger through the throttling device so as to condense the surface of the indoor heat exchanger; and S2, the air conditioner operates in a refrigerating mode, the electromagnetic valve is opened, and the cold coal in the compressor flows to the indoor heat exchanger from the outdoor heat exchanger through the electromagnetic valve so as to defrost the surface of the indoor heat exchanger. According to the air conditioner control method, system control elements of the air conditioner can be simplified, the service life of the air conditioner is prolonged, meanwhile, the air conditioner can be quickly self-cleaned, the self-cleaning operation time of the air conditioner is shortened, the air conditioner has a high cleaning effect, and user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
The air conditioner is an electrical product widely used in life of people, plays an important role in indoor temperature regulation, can provide healthy and comfortable indoor environment for users, and meets the requirements of normal work, life and study. In the related art, when the air conditioner performs self-cleaning, the operation mode is usually required to be changed back and forth to clean the indoor heat exchanger of the air conditioner. However, the self-cleaning mode results in complex system control elements and long operation time of the air conditioner, so that the service life of the air conditioner is reduced, and meanwhile, the cleaning effect on the indoor heat exchanger is poor, and the user experience is affected.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a method for controlling an air conditioner, which can simplify system control elements of the air conditioner, prolong the service life of the air conditioner, and simultaneously, the air conditioner can perform self-cleaning more quickly, reduce the self-cleaning operation time of the air conditioner, and the air conditioner has a higher cleaning effect.
One object of the present invention is to provide an air conditioner using the above-mentioned air conditioner control method.
According to the air conditioner control method of the embodiment of the first aspect of the present invention, the air conditioner includes a solenoid valve and a throttle device connected in parallel between an indoor heat exchanger and an outdoor heat exchanger;
the control method comprises the following steps:
when the air conditioner enters the self-cleaning mode,
s1, the air conditioner is in refrigeration operation, the electromagnetic valve is closed, the throttling device is used for throttling, and cold coal in the compressor flows from the outdoor heat exchanger to the indoor heat exchanger through the throttling device so as to frost the surface of the indoor heat exchanger;
and S2, the air conditioner operates in a refrigerating mode, the electromagnetic valve is opened, and cold coal in the compressor flows to the indoor heat exchanger from the outdoor heat exchanger through the electromagnetic valve so as to defrost the surface of the indoor heat exchanger.
According to the air conditioner control method provided by the embodiment of the invention, by adopting the step S1 and the step S2, the system control elements of the air conditioner can be simplified, the service life of the air conditioner is prolonged, meanwhile, the air conditioner can be quickly self-cleaned, the self-cleaning running time of the air conditioner is reduced, the air conditioner has a higher cleaning effect, and the user experience is improved.
According to some embodiments of the present invention, in step S1, the compressor of the air conditioner is operated at a first frequency; in step S2, the compressor is operated at a second frequency, the second frequency being equal to or greater than the first frequency.
According to some embodiments of the invention, in step S2, the throttle device is controlled to be bypassed.
According to some embodiments of the present invention, a check valve is connected in series to a flow path of the solenoid valve, and the check valve is configured to allow a refrigerant flowing through the check valve to flow to the indoor heat exchanger in a single direction.
According to some embodiments of the invention, the check valve is connected between the solenoid valve and the indoor heat exchanger.
According to some embodiments of the invention, the throttling device is an electronic expansion valve or a component with a throttling function.
According to some embodiments of the present invention, before the air conditioner enters the self-cleaning mode, when the air conditioner is operated for heating, a compressor of the air conditioner is turned off for a first predetermined time and then is turned on.
According to the air conditioner of the embodiment of the second aspect of the present invention, the air conditioner control method according to the above-described embodiment of the first aspect of the present invention is employed.
According to some embodiments of the invention, the air conditioner is a warm air conditioner or a single-cold air conditioner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a cooling and heating air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a flow direction of a refrigerant when an indoor heat exchanger of the cooling and heating air conditioner shown in fig. 1 is frosted;
fig. 3 is a schematic view illustrating a flow direction of a refrigerant when an indoor heat exchanger of the air conditioner shown in fig. 1 defrosts;
fig. 4 is a schematic view illustrating an operation state of each component when the air conditioner of fig. 1 enters a self-cleaning mode from a standby mode;
fig. 5 is a schematic view illustrating an operation state of each component when the air conditioner shown in fig. 1 enters a self-cleaning mode from a blowing mode;
fig. 6 is a schematic view illustrating an operation state of each component when the cooling and heating air conditioner shown in fig. 1 enters a self-cleaning mode from a cooling mode or a dehumidifying mode;
fig. 7 is a schematic view illustrating an operation state of each component when the air conditioner shown in fig. 1 enters a self-cleaning mode from a heating mode;
fig. 8 is a schematic view of a single-cooling air conditioner according to an embodiment of the present invention;
fig. 9 is a schematic view illustrating a flow direction of a refrigerant when an indoor heat exchanger of the single cooling air conditioner shown in fig. 8 is frosted;
fig. 10 is a schematic view illustrating a flow direction of a refrigerant when an indoor heat exchanger of the single cooling air conditioner shown in fig. 8 defrosts;
fig. 11 is a schematic view illustrating an operation state of each component when the single cooling air conditioner shown in fig. 8 enters a self-cleaning mode from a standby mode;
fig. 12 is a schematic view illustrating operation states of respective components when the single-cooling air conditioner shown in fig. 8 enters a self-cleaning mode from a blowing mode;
fig. 13 is a schematic view illustrating an operation state of each component when the single cooling air conditioner shown in fig. 8 enters a self-cleaning mode from a cooling mode or a dehumidifying mode.
Reference numerals:
100: a cooling and heating air conditioner;
10: an indoor heat exchanger; 11: an outdoor heat exchanger; 12: an electromagnetic valve; 13: a throttling device;
14: a one-way valve; 15: a compressor; 16: a first shut-off valve; 17: a second stop valve;
18: a four-way valve;
200: a single-cooling air conditioner.
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.
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.
An air conditioner control method according to an embodiment of a first aspect of the present invention is described below with reference to fig. 1 to 13.
As shown in fig. 1, 2, 3, 8, 9 and 10, the air conditioner includes an electromagnetic valve 12 and a throttling device 13 connected in parallel between an indoor heat exchanger 10 and an outdoor heat exchanger 11.
The control method comprises the following steps:
when the air conditioner enters the self-cleaning mode,
and S1, the air conditioner operates in a refrigerating mode, the electromagnetic valve 12 is closed, the throttling device 13 is used for throttling, and the cold coal in the air conditioner flows to the indoor heat exchanger 10 from the outdoor heat exchanger 11 through the throttling device 13 so that the surface of the indoor heat exchanger 10 is frosted.
Referring to fig. 2 and 8, at this time, the refrigerant in the compressor 15 of the air conditioner is compressed into a high-temperature and high-pressure gaseous refrigerant, and flows to the outdoor heat exchanger 11 through the air outlet of the compressor 15, the high-temperature and high-pressure gaseous refrigerant is cooled by the outdoor heat exchanger 11 and then converted into a low-temperature and high-pressure liquid refrigerant, and the low-temperature and high-pressure liquid refrigerant is throttled and depressurized by the throttling device 13, so that the pressure of the low-temperature and high-pressure liquid refrigerant is reduced, and simultaneously, the temperature of the low-temperature and high-pressure liquid refrigerant can be further reduced, so that the liquid refrigerant flowing to the indoor heat exchanger 10 is at a low temperature and a low pressure, and further, the temperature of the surface of the indoor heat exchanger 10 can be reduced, so that moisture in the air can be condensed on the surface of the indoor heat exchanger 10 to form frost.
S2, the air conditioner operates in a cooling mode, the electromagnetic valve 12 is opened, and the cooling coal in the compressor 15 flows from the outdoor heat exchanger 11 to the indoor heat exchanger 10 through the electromagnetic valve 12 to defrost the surface of the indoor heat exchanger 10.
Referring to fig. 3 and 10, at this time, the refrigerant in the compressor 15 of the air conditioner is compressed into a high-temperature and high-pressure gaseous refrigerant, and flows to the outdoor heat exchanger 11 through the air outlet of the compressor 15, the high-temperature and high-pressure gaseous refrigerant is cooled by the outdoor heat exchanger 11 and then converted into a low-temperature and high-pressure liquid refrigerant, the low-temperature and high-pressure liquid refrigerant can flow to the indoor heat exchanger 10 through the electromagnetic valve 12, and the low-temperature and high-pressure liquid refrigerant is further cooled by the throttle device 13, so that the temperature of the refrigerant flowing to the indoor heat exchanger 10 is higher than that of the refrigerant flowing to the indoor heat exchanger 10 in the frosting process, and further, the surface of the indoor heat exchanger 10 can be defrosted, so that impurities such as dust and the like on the surface of the indoor heat exchanger 10 can flow out of the indoor heat exchanger 10 along with water droplets, and the indoor heat exchanger 10 can be cleaned.
From this, through above-mentioned step S1 and step S2, compare with traditional air conditioner, when the air conditioner carries out the automatically cleaning, need not to make a round trip to change the operation mode in order to realize the frost and the defrosting of indoor heat exchanger 10 to can simplify the system control element of air conditioner, prolong the life of air conditioner, the air conditioner can carry out the automatically cleaning more fast simultaneously, the operating time of air conditioner automatically cleaning has been reduced, and the air conditioner has higher clean effect, user experience has been promoted.
According to the air conditioner control method provided by the embodiment of the invention, by adopting the step S1 and the step S2, the system control elements of the air conditioner can be simplified, the service life of the air conditioner is prolonged, meanwhile, the air conditioner can be quickly self-cleaned, the self-cleaning running time of the air conditioner is reduced, the air conditioner has a higher cleaning effect, and the user experience is improved.
In some embodiments of the present invention, in step S1, the compressor 15 of the air conditioner is operated at the first frequency. In step S2, the compressor 15 is operated at a second frequency that is equal to or greater than the first frequency. So set up, can increase the velocity of flow of the in-process refrigerant of indoor heat exchanger 10 defrosting to make the frost on indoor heat exchanger 10 surface melt fast.
In some alternative embodiments, in step S2, throttle 13 is controlled to be bypassed. At this time, the throttling device 13 does not perform the throttling function, so that when the indoor heat exchanger 10 performs defrosting, the refrigerant in the outdoor heat exchanger 11 can be ensured to flow to the indoor heat exchanger 10 through the flow path where the electromagnetic valve 12 is located as much as possible, and the defrosting rate of the indoor heat exchanger 10 can be further increased. Alternatively, the throttle device 13 may be at maximum opening. But is not limited thereto.
In some embodiments of the present invention, a check valve 14 is connected in series to a flow path of the solenoid valve 12, and the check valve 14 is configured to allow the refrigerant flowing through the check valve 14 to flow to the indoor heat exchanger 10 in a single direction. For example, in the examples of fig. 1, 2, 3, 8, 9, and 10, the check valve 14 may be connected between the solenoid valve 12 and the indoor heat exchanger 10. Therefore, the electromagnetic valve 12 can be protected from being reversely flushed by the refrigerant, and the normal work of the electromagnetic valve 12 can be effectively ensured.
Alternatively, the throttling device 13 is an electronic expansion valve or a component having a throttling function.
In some embodiments of the present invention, as shown in fig. 7, before the air conditioner enters the self-cleaning mode, when the air conditioner is operated for heating, the compressor 15 of the air conditioner is turned off for a first predetermined time and then is turned on. Specifically, when the air conditioner enters the self-cleaning mode from the heating mode, the air conditioner needs to be switched from the heating mode to the cooling mode, so that the surface of the indoor heat exchanger 10 can be frosted, and then the indoor heat exchanger 10 can be defrosted in the cooling mode, thereby reducing the number of times of switching the operation modes of the air conditioner in the self-cleaning process. In which, by turning off the compressor 15 for the first predetermined time when the heating mode is switched to the self-cleaning mode, the loss of the compressor 15 can be reduced, and thus the lifespan of the compressor 15 can be extended. Alternatively, the first preset time may be 3 minutes, but is not limited thereto.
According to the air conditioner of the embodiment of the second aspect of the present invention, the air conditioner control method according to the above-described embodiment of the first aspect of the present invention is employed.
According to the air conditioner of the embodiment of the second aspect of the invention, by adopting the air conditioner control method, the operation mode does not need to be switched for many times when the air conditioner performs self-cleaning, so that the service life of the air conditioner can be prolonged.
In some alternative embodiments, as shown in fig. 1-3, the air conditioner may be a cooling and heating air conditioner 100. The cooling and heating air conditioner 100 includes: the air conditioner comprises an indoor heat exchanger 10, a first stop valve 16, a four-way valve 18, a compressor 15, an outdoor heat exchanger 11, a throttling device 13, an electromagnetic valve 12, a one-way valve 14 and a second stop valve 17, wherein the compressor 15 is respectively connected with the indoor heat exchanger 10 and the outdoor heat exchanger 11 through the four-way valve 18, the first stop valve 16 is connected between the indoor heat exchanger 10 and the compressor 15, the throttling device 13 and the electromagnetic valve 12 are connected between the indoor heat exchanger 10 and the outdoor heat exchanger 11 in parallel, the one-way valve 14 is connected in series in a flow path where the electromagnetic valve 12 is located, and the electromagnetic valve 12 and the throttling device 13 are connected in series with the second stop valve 17.
When the air conditioner 100 performs self-cleaning, the flow path of the refrigerant during the condensation process is as follows: the refrigerant in the compressor 15 may flow to the outdoor heat exchanger 11 through the four-way valve 18, the refrigerant in the outdoor heat exchanger 11 may flow to the indoor heat exchanger 10 through the throttling device 13 and the second stop valve 17, the refrigerant in the indoor heat exchanger 10 exchanges heat with the air in the air conditioner 100, and the heat-exchanged refrigerant flows back to the compressor 15 through the first stop valve 16 and the four-way valve 18. Thus, the circulation is performed to ensure the surface frost formation of the indoor heat exchanger 10.
When the air conditioner 100 performs self-cleaning, the flow path of the refrigerant during the defrosting process is as follows: the refrigerant in the compressor 15 may flow to the outdoor heat exchanger 11 through the four-way valve 18, the refrigerant in the outdoor heat exchanger 11 may flow to the indoor heat exchanger 10 through the electromagnetic valve 12, the check valve 14 and the second stop valve 17, at this time, the refrigerant in the indoor heat exchanger 10 exchanges heat with the air in the air conditioner, and the refrigerant after heat exchange flows back to the compressor 15 through the first stop valve 16 and the four-way valve 18. Thus, the surface of the indoor heat exchanger 10 is ensured to be defrosted.
Of course, the present invention is not limited thereto, and the air conditioner may be a single cooling air conditioner 200 as shown in fig. 8 to 10. The single cooling air conditioner 200 includes: the air conditioner comprises an indoor heat exchanger 10, a first stop valve 16, a compressor 15, an outdoor heat exchanger 11, a throttling device 13, an electromagnetic valve 12, a one-way valve 14 and a second stop valve 17, wherein the compressor 15 is connected between the indoor heat exchanger 10 and the outdoor heat exchanger 11, the first stop valve 16 is connected between the indoor heat exchanger 10 and the compressor 15, the throttling device 13 and the electromagnetic valve 12 are connected between the indoor heat exchanger 10 and the outdoor heat exchanger 11 in parallel, the one-way valve 14 is connected in series in a flow path where the electromagnetic valve 12 is located, and the electromagnetic valve 12 and the throttling device 13 are connected in series with the second stop valve 17.
When the single-cooling air conditioner 200 performs self-cleaning, the flow route of the refrigerant in the process of frost formation is as follows: the refrigerant in the compressor 15 flows to the outdoor heat exchanger 11, the refrigerant in the outdoor heat exchanger 11 may flow to the indoor heat exchanger 10 through the throttling device 13 and the second stop valve 17, at this time, the refrigerant in the indoor heat exchanger 10 exchanges heat with the air in the single-cooling air conditioner 200, and the heat-exchanged refrigerant flows back to the compressor 15 through the first stop valve 16. Thus, the circulation is performed to ensure the surface frost formation of the indoor heat exchanger 10.
When the single-cooling air conditioner 200 performs self-cleaning, the flow route of the refrigerant in the defrosting process is as follows: the refrigerant in the compressor 15 flows to the outdoor heat exchanger 11, the refrigerant in the outdoor heat exchanger 11 can flow to the indoor heat exchanger 10 through the electromagnetic valve 12, the check valve 14 and the second stop valve 17, at this time, the refrigerant in the indoor heat exchanger 10 exchanges heat with the air in the air conditioner, and the heat-exchanged refrigerant flows back to the compressor 15 through the first stop valve 16. Thus, the surface of the indoor heat exchanger 10 is ensured to be defrosted.
Referring to fig. 4, 5, 11 and 12, when the air conditioner enters the self-cleaning mode from the standby mode or the air supply mode, during the process of the indoor heat exchanger 10 frosting, the compressor 15 is switched from standby to the first frequency operation, the electromagnetic valve 12 is closed, the outdoor fan of the air conditioner is operated by high-efficiency air, and the throttling device 13 is switched from the maximum opening degree (for example, the maximum opening degree is 500 steps) to the self-cleaning opening degree, so as to frost the surface of the indoor heat exchanger 10; during the defrosting process of the indoor heat exchanger 10, the compressor 15 is switched from the first frequency to the second frequency to operate, the electromagnetic valve 12 is opened, the outdoor fan of the air conditioner operates with high-efficiency wind, and the throttling device 13 is bypassed to defrost the surface of the indoor heat exchanger 10. When the air conditioner is the cooling and heating air conditioner 100, the four-way valve 18 is always in an unpowered state during the process of the indoor heat exchanger 10 of frost condensation and defrosting.
Referring to fig. 6 and 13, when the air conditioner enters the self-cleaning mode from the cooling mode or the dehumidification mode, in the process of the indoor heat exchanger 10 frosting, the compressor 15 is switched from the free running frequency to the first frequency to run, the electromagnetic valve 12 is closed, the outdoor fan of the air conditioner is switched from the free rotating speed to the high-efficiency air to run, and the throttling device 13 is switched from the free opening to the self-cleaning opening to frost the surface of the indoor heat exchanger 10; during the defrosting process of the indoor heat exchanger 10, the compressor 15 is switched from the first frequency to the second frequency to operate, at this time, the first frequency can be equal to the second frequency, the electromagnetic valve 12 is opened, the outdoor fan of the air conditioner operates with high-efficiency air, and the throttling device 13 is bypassed, so that the surface of the indoor heat exchanger 10 is defrosted. When the air conditioner is the cooling and heating air conditioner 100, the four-way valve 18 is always in an unpowered state during the process of the indoor heat exchanger 10 of frost condensation and defrosting.
Referring to fig. 7, when the air conditioner 100 is switched from the heating mode to the self-cleaning mode, in the process of condensing frost on the indoor heat exchanger 10, the compressor 15 is operated at a first frequency after being turned off for a first predetermined time, the electromagnetic valve 12 is turned off, the outdoor fan is operated at high-efficiency air after being turned off for 30 seconds, the throttling device 13 is switched from a free opening degree to a self-cleaning opening degree, and the four-way valve 18 is turned off after being delayed for 50 seconds, so that the surface of the indoor heat exchanger 10 is condensed frost; during the defrosting process of the indoor heat exchanger 10, the compressor 15 is switched from the first frequency to the second frequency to operate, at this time, the first frequency can be equal to the second frequency, the electromagnetic valve 12 is opened, the outdoor fan of the air conditioner operates with high-efficiency air, and the throttling device 13 is bypassed, so that the surface of the indoor heat exchanger 10 is defrosted.
Other configurations and operations of the air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
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.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The control method of the air conditioner is characterized in that the air conditioner comprises an electromagnetic valve and a throttling device which are connected in parallel between an indoor heat exchanger and an outdoor heat exchanger;
the control method comprises the following steps:
when the air conditioner enters the self-cleaning mode,
s1, the air conditioner is in refrigeration operation, the electromagnetic valve is closed, the throttling device is used for throttling, and cold coal in the compressor flows from the outdoor heat exchanger to the indoor heat exchanger through the throttling device so as to frost the surface of the indoor heat exchanger;
and S2, the air conditioner operates in a refrigerating mode, the electromagnetic valve is opened, and cold coal in the compressor flows to the indoor heat exchanger from the outdoor heat exchanger through the electromagnetic valve so as to defrost the surface of the indoor heat exchanger.
2. The air conditioner controlling method of claim 1, wherein in step S1, a compressor of the air conditioner is operated at a first frequency;
in step S2, the compressor is operated at a second frequency, the second frequency being equal to or greater than the first frequency.
3. The air conditioner controlling method according to claim 1, wherein in step S2, the throttling means is controlled to be bypassed.
4. The air conditioner control method according to claim 1, wherein a check valve is connected in series to a flow path in which the solenoid valve is located, the check valve being configured to allow the refrigerant flowing through the check valve to flow to the indoor heat exchanger in a unidirectional manner.
5. The air conditioner controlling method according to claim 4, wherein the check valve is connected between the solenoid valve and the indoor heat exchanger.
6. The air conditioner controlling method according to claim 1, wherein the throttling means is an electronic expansion valve or a member having a throttling function.
7. The air conditioner controlling method as claimed in any one of claims 1 to 6, wherein before the air conditioner enters the self-cleaning mode,
when the air conditioner is in heating operation, a compressor of the air conditioner is turned off for a first preset time and then is started.
8. An air conditioner characterized by employing the air conditioner control method according to any one of claims 1 to 7.
9. The air conditioner according to claim 8, wherein the air conditioner is a warm air conditioner or a single-cool air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007561.0A CN113669844A (en) | 2021-08-30 | 2021-08-30 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007561.0A CN113669844A (en) | 2021-08-30 | 2021-08-30 | Air conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113669844A true CN113669844A (en) | 2021-11-19 |
Family
ID=78547459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111007561.0A Pending CN113669844A (en) | 2021-08-30 | 2021-08-30 | Air conditioner and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113669844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183394A (en) * | 2022-07-25 | 2022-10-14 | Tcl空调器(中山)有限公司 | Air conditioner and self-cleaning control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457067A (en) * | 2014-09-30 | 2015-03-25 | 烟台万德嘉空调设备有限公司 | Energy-saving quick defroster |
| CN104654461A (en) * | 2015-01-29 | 2015-05-27 | 珠海格力电器股份有限公司 | Air conditioner capable of continuously heating and defrosting and control method of air conditioner |
| CN107014039A (en) * | 2017-04-13 | 2017-08-04 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107023954A (en) * | 2017-04-10 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and cleaning control method |
| US20180100668A1 (en) * | 2015-06-30 | 2018-04-12 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Variable refrigerant flow air conditioning system with dual control over temperature and humidity and control method thereof |
| CN109668247A (en) * | 2018-12-26 | 2019-04-23 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner and defrosting control method |
| CN112797593A (en) * | 2020-12-28 | 2021-05-14 | 珠海格力电器股份有限公司 | Self-cleaning control method and single-cooling type air conditioner |
| CN112902473A (en) * | 2021-03-25 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioner heat exchange structure, air conditioner external unit, air conditioner system and air conditioner system control method |
-
2021
- 2021-08-30 CN CN202111007561.0A patent/CN113669844A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457067A (en) * | 2014-09-30 | 2015-03-25 | 烟台万德嘉空调设备有限公司 | Energy-saving quick defroster |
| CN104654461A (en) * | 2015-01-29 | 2015-05-27 | 珠海格力电器股份有限公司 | Air conditioner capable of continuously heating and defrosting and control method of air conditioner |
| US20180100668A1 (en) * | 2015-06-30 | 2018-04-12 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Variable refrigerant flow air conditioning system with dual control over temperature and humidity and control method thereof |
| CN107023954A (en) * | 2017-04-10 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and cleaning control method |
| CN107014039A (en) * | 2017-04-13 | 2017-08-04 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN109668247A (en) * | 2018-12-26 | 2019-04-23 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner and defrosting control method |
| CN112797593A (en) * | 2020-12-28 | 2021-05-14 | 珠海格力电器股份有限公司 | Self-cleaning control method and single-cooling type air conditioner |
| CN112902473A (en) * | 2021-03-25 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioner heat exchange structure, air conditioner external unit, air conditioner system and air conditioner system control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183394A (en) * | 2022-07-25 | 2022-10-14 | Tcl空调器(中山)有限公司 | Air conditioner and self-cleaning control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5709993B2 (en) | Refrigeration air conditioner | |
| CN109945330A (en) | The refrigeration system and defrosting control method of energy continuous heating | |
| CN104832989A (en) | Air conditioner and control method for air conditioner | |
| EP3611439B1 (en) | Air conditioner | |
| CN213841111U (en) | Air conditioner | |
| CN112444001A (en) | Air conditioner | |
| CN112444000A (en) | Air conditioner | |
| JP4624223B2 (en) | Refrigeration system | |
| CN112443999A (en) | Air conditioner | |
| CN112443997A (en) | Air conditioner | |
| JP6771302B2 (en) | Air conditioner | |
| CN113669844A (en) | Air conditioner and control method thereof | |
| JP4622901B2 (en) | Air conditioner | |
| CN111720953A (en) | Air conditioner and control method thereof | |
| KR100212674B1 (en) | Heat pump type refrigerating cycle apparatus | |
| JP2007100987A (en) | Refrigerating system | |
| JP2013108729A (en) | Air conditioner | |
| CN213089945U (en) | Air conditioner | |
| CN209558719U (en) | A kind of two-stage enthalpy increasing system | |
| CN112444002A (en) | Air conditioner | |
| CN112444003A (en) | Air conditioner | |
| JP4169638B2 (en) | Refrigeration system | |
| CN112443998A (en) | Air conditioner | |
| CN111076459A (en) | Heat pump air conditioning system and control method thereof | |
| JP2008020181A (en) | Air-conditioning system, and control method therefor |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211119 |
|
| RJ01 | Rejection of invention patent application after publication |