CN112303813B - A kind of air conditioner and air conditioner defrosting method - Google Patents
A kind of air conditioner and air conditioner defrosting method Download PDFInfo
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- CN112303813B CN112303813B CN202011017917.4A CN202011017917A CN112303813B CN 112303813 B CN112303813 B CN 112303813B CN 202011017917 A CN202011017917 A CN 202011017917A CN 112303813 B CN112303813 B CN 112303813B
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- 238000010257 thawing Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 239000003507 refrigerant Substances 0.000 claims abstract description 35
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009286 beneficial effect 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
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明公开了一种空调及空调化霜方法，应用于包括冷媒循环回路、压缩机、室外热交换器和室内热交换器、四通阀、控制器的空调中，控制器，被配置为，在所述空调处于制热模式并达到预设化霜条件时，获取所述空调的关机时间；当当前时间不大于所述关机时间与第一预设时间的差值时，控制所述空调执行化霜操作；当当前时间大于所述关机时间与第一预设时间的差值时，不执行化霜操作，控制所述空调按照当前制热模式运行。通过上述空调及空调化霜方法，判断是否为用户关机前的最后一次化霜，从而减少了能源损耗。The invention discloses an air conditioner and an air conditioner defrosting method, which is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger and an indoor heat exchanger, a four-way valve, and a controller. The controller is configured as: When the air conditioner is in the heating mode and reaches the preset defrosting condition, the shutdown time of the air conditioner is obtained; when the current time is not greater than the difference between the shutdown time and the first preset time, the air conditioner is controlled to execute Defrost operation; when the current time is greater than the difference between the shutdown time and the first preset time, the defrost operation is not performed, and the air conditioner is controlled to operate according to the current heating mode. Through the above air conditioner and air conditioner defrosting method, it is judged whether it is the last defrosting before the user shuts down, thereby reducing energy consumption.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner and an air conditioner defrosting method.
Background
The air conditioner is used as a refrigerating or heating device, becomes a part of the life of people, and improves the comfort of the life of people. However, the air conditioner needs to consume more electric energy when running for a long time, and when the air conditioner runs for heating, the external machine heat exchanger frosts, and the heat exchange efficiency of the external machine heat exchanger is seriously influenced, so that the heating effect of the air conditioner is seriously influenced, and a large amount of electric energy is invisibly wasted. In order to remove frost generated on the outer unit heat exchanger during heating of the air conditioner, the outer unit heat exchanger often starts defrosting when a certain condition is satisfied. After defrosting is finished, the air conditioner can continue normal heating operation.
In the traditional defrosting mode, defrosting is started after a defrosting condition is met within a certain time. In the actual use process of a user, the condition that the air conditioner is just defrosted or the user is turned off in a short time exists actually, so that the last defrosting link is completely energy waste.
Therefore, how to reduce the last defrosting before the user shuts down to reduce the energy waste is a technical problem to be solved at present.
Disclosure of Invention
The invention provides an air conditioner, which is used for solving the technical problem that the energy waste is caused by the fact that the last defrosting before the user is shut down cannot be avoided in the prior art, and comprises the following steps:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator and the four-way valve;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
one of the outdoor heat exchanger and the indoor heat exchanger works for the condenser, and the other works for the evaporator;
the four-way valve is used for controlling the flow direction of the refrigerant in the refrigerant loop so as to switch the outdoor heat exchanger and the indoor heat exchanger between the condenser and the evaporator;
a controller configured to control the operation of the switching device,
when the air conditioner is in a heating mode and reaches a preset defrosting condition, obtaining the shutdown time of the air conditioner;
when the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation;
and when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, and the air conditioner is controlled to operate according to the current heating mode.
In some embodiments, the shutdown time of the air conditioner is specifically obtained by:
acquiring the shutdown time of the air conditioner based on the timing shutdown time input by the user, or;
determining a shutdown time of the air conditioner based on historical shutdown data of the user, or;
and determining the shutdown time of the air conditioner based on the behavior habit information of the user.
In some embodiments, the controller is specifically configured to:
when the current time is larger than the difference value between the shutdown time and a first preset time and the shutdown time of the air conditioner is obtained based on the timing shutdown time input by a user, judging whether the air conditioner is shut down or not based on the shutdown time;
if the current time reaches the shutdown time, the air conditioner is shut down;
and if the current time does not reach the shutdown time, controlling the air conditioner to operate based on a preset mode.
In some embodiments, the preset mode is specifically:
reducing the running frequency of a compressor of the air conditioner by a preset frequency, or reducing the indoor air speed by a first preset air speed, or adjusting the angle of an air guide strip of an indoor unit by a preset angle, or increasing the air speed of an outdoor unit by a second preset air speed.
In some embodiments, the controller is specifically configured to:
when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, judging whether the current time is less than the sum of the shutdown time and a second preset time;
if yes, controlling the air conditioner to execute defrosting operation, and after defrosting is finished, controlling the air conditioner to operate in an original heating mode;
if not, controlling the air conditioner to keep running in a preset mode.
Correspondingly, the invention also provides an air conditioner defrosting method, which comprises the following steps:
when the air conditioner is in a heating mode and reaches a preset defrosting condition, obtaining the shutdown time of the air conditioner;
when the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation;
and when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, and the air conditioner is controlled to operate according to the current heating mode.
In some embodiments, the shutdown time of the air conditioner is specifically obtained by:
acquiring the shutdown time of the air conditioner based on the timing shutdown time input by the user, or;
determining a shutdown time of the air conditioner based on historical shutdown data of the user, or;
and determining the shutdown time of the air conditioner based on the behavior habit information of the user.
In some embodiments, when the current time is greater than a difference between the shutdown time and a first preset time, the defrosting operation is not performed, and the air conditioner is controlled to operate in the current heating mode, further including:
when the current time is larger than the difference value between the shutdown time and a first preset time and the shutdown time of the air conditioner is acquired based on the timed shutdown time input by a user, judging whether the air conditioner is shut down or not based on the shutdown time;
if the current time reaches the shutdown time, the air conditioner is shut down;
and if the current time does not reach the shutdown time, controlling the air conditioner to operate based on a preset mode.
In some embodiments, the preset mode is specifically:
reducing the running frequency of a compressor of the air conditioner by a preset frequency, or reducing the indoor air speed by a first preset air speed, or adjusting the angle of an air guide strip of an indoor unit by a preset angle, or increasing the air speed of an outdoor unit by a second preset air speed.
In some embodiments, the verifying the data bit information, and if the current time does not reach the shutdown time, controlling the air conditioner to operate based on a preset mode further includes:
when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, judging whether the current time is less than the sum of the shutdown time and a second preset time;
if yes, controlling the air conditioner to execute defrosting operation, and after defrosting is finished, controlling the air conditioner to operate in an original heating mode;
if not, controlling the air conditioner to keep running in a preset mode.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses an air conditioner and a defrosting method thereof, which are applied to the air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve and a controller, wherein the controller is configured to obtain the shutdown time of the air conditioner when the air conditioner is in a heating mode and reaches a preset defrosting condition; when the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation; and when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, and the air conditioner is controlled to operate according to the current heating mode. By the air conditioner and the air conditioner defrosting method, whether the last defrosting is carried out before the user is turned off is judged, so that energy loss is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of an air conditioner defrosting method according to an embodiment of the present invention;
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
To further describe the solution of the present application, fig. 1 shows a schematic structural diagram of an air conditioner of the present application.
The application protects an air conditioner, as shown in fig. 1, specifically is:
the refrigerant circulation circuit 101 circulates a refrigerant in a circuit including a compressor, a condenser, an expansion valve, an evaporator, and a four-way valve.
In a preferred embodiment of the present application, an 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 102 is configured to compress a low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas, and discharge the high-temperature and high-pressure refrigerant gas to the condenser.
In a preferred embodiment of the present application, 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.
An outdoor heat exchanger and an indoor heat exchanger 103, one of which operates as a condenser and the other of which operates as an evaporator.
In a preferred embodiment of the present application, the outdoor unit of the air conditioner includes 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 the expansion valve may be provided in either the indoor unit or the outdoor unit.
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 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.
A four-way valve 104 for controlling the flow direction of the refrigerant in the refrigerant circuit to switch the outdoor heat exchanger and the indoor heat exchanger as a condenser and an evaporator;
a controller configured to control the operation of the switching device,
and when the air conditioner is in a heating mode and reaches a preset defrosting condition, acquiring the shutdown time of the air conditioner.
In a preferred embodiment of the present application, when the air conditioner is in a heating mode, the operation state of the air conditioner is constantly monitored, and after a preset defrosting condition is reached, the shutdown time of the air conditioner is acquired.
It should be noted that the preset defrosting condition is a condition for determining whether to defrost in an existing air conditioner, and belongs to the existing technical features, so that details are not repeated herein, and after the preset defrosting condition is reached, the air conditioner may be defrosted, but in order to further optimize the defrosting process or improve user experience, after the defrosting condition is reached, the defrosting process may be further controlled, for example, the shutdown time of the air conditioner may be further obtained in the scheme of the application.
In order to obtain the off time of the air conditioner, in a preferred embodiment of the present application, the off time of the air conditioner is specifically obtained by:
acquiring the shutdown time of the air conditioner based on the timing shutdown time input by the user, or;
determining a shutdown time of the air conditioner based on historical shutdown data of the user, or;
and determining the shutdown time of the air conditioner based on the behavior habit information of the user.
In a preferred embodiment of the present application, the manner of obtaining the shutdown time may be to obtain the shutdown time through an input timing shutdown time, for example, a timing time set by a user through a mobile terminal such as a mobile phone or a remote controller, and after the timing time is reached, it indicates that shutdown is required, or the obtaining manner may be to estimate the shutdown time of the air conditioner according to previous shutdown data of the user, for example, the user often shuts down the air conditioner six o 'clock in the morning, so that six o' clock may be used as the shutdown time according to historical shutdown data, or the shutdown time of the air conditioner may be estimated according to behavior habit information of the user, for example, when the camera senses that the user leaves home at seven o 'clock, seven o' clock may be used as the shutdown time.
It should be noted that the above manner of acquiring the off-time of the air conditioner is only a preferred embodiment of the present application, and a person skilled in the art may determine other acquisition manners according to an actual application scenario, and the difference of the acquisition manners does not affect the protection scope of the present application.
When the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation;
when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, and the air conditioner is controlled to operate according to the current heating mode
In the preferred embodiment of this application, when the current time is not more than the difference of shut-down time and first preset time, it explains that the current time is longer than the shut-down time phase difference time, then directly gets into and changes the frost to after changing the frost, operate according to original mode of heating, on the contrary, if the current time is greater than when the difference of shut-down time and first preset time, it explains that the current time is shorter than the shut-down time, no longer changes the frost this moment, but operates according to original mode of heating, thereby the frost has been avoided changing before the shutdown, causes the wasting of resources.
In order to implement the shutdown of the air conditioner, in a preferred embodiment of the present application, the controller is specifically configured to:
when the current time is larger than the difference value between the shutdown time and a first preset time and the shutdown time of the air conditioner is obtained based on the timing shutdown time input by a user, judging whether the air conditioner is shut down or not based on the shutdown time;
if the current time reaches the shutdown time, the air conditioner is shut down;
and if the current time does not reach the shutdown time, controlling the air conditioner to operate based on a preset mode.
In a preferred embodiment of the present application, when the current time is greater than a difference between the shutdown time and a first preset time and the shutdown time of the air conditioner is obtained based on the timing shutdown time input by the user, it is determined whether to shutdown the air conditioner based on the shutdown time, that is, the current time is close to the shutdown time.
If the time of shutdown is reached, the air conditioner is directly shut down, and if the time of shutdown is not reached, the air conditioner is controlled to operate in a preset mode.
In order to control the air conditioner to operate in a preset mode, in some embodiments, the preset mode specifically includes:
reducing the running frequency of a compressor of the air conditioner by a preset frequency, or reducing the indoor air speed by a first preset air speed, or adjusting the angle of an air guide strip of an indoor unit by a preset angle, or increasing the air speed of an outdoor unit by a second preset air speed.
In a preferred embodiment of the present application, when the air conditioner needs to enter a preset mode, the operation frequency of a compressor of the air conditioner is reduced by a preset frequency, and/or the indoor air speed is reduced by a first preset air speed, and/or the angle of an indoor unit air guide strip is adjusted by a preset angle, and/or the outdoor air speed is increased by a second preset air speed.
The process of air conditioner frosting can be slowed down through the preset mode, and therefore energy loss is further reduced in the process of shutting down the air conditioner.
To ensure operation in the preset mode, in some embodiments, the controller is specifically configured to:
when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, judging whether the current time is less than the sum of the shutdown time and a second preset time;
if yes, controlling the air conditioner to execute defrosting operation, and after defrosting is finished, controlling the air conditioner to operate in an original heating mode;
if not, controlling the air conditioner to keep running in a preset mode.
In the preferred embodiment of the application, when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, in order to guarantee the running state of the air conditioner and the experience of a user, whether the current time is less than the sum of the shutdown time and the second preset time is further judged, if yes, the air conditioner is controlled to execute defrosting operation, after defrosting is completed, the air conditioner is controlled to run in an original heating mode, and if not, the air conditioner is controlled to keep running in the preset mode.
The invention discloses an air conditioner, which comprises a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve and a controller, wherein the controller is configured to acquire the shutdown time of the air conditioner when the air conditioner is in a heating mode and reaches a preset defrosting condition; when the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation; when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, the air conditioner is controlled to operate according to the current heating mode, the last defrosting before shutdown of a user is reduced, and therefore energy waste is reduced.
Based on the air conditioner, the application also provides an air conditioner defrosting method, as shown in fig. 2, the air conditioner defrosting method is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve and a controller, and the method comprises the following steps:
step S201, when the air conditioner is in a heating mode and reaches a preset defrosting condition, obtaining the shutdown time of the air conditioner.
In a preferred embodiment of the present application, in the preferred embodiment of the present application, when an air conditioner is in a heating mode, an operation state of the air conditioner is constantly monitored, and after a preset defrosting condition is reached, a shutdown time of the air conditioner is acquired.
It should be noted that the preset defrosting condition is a condition for determining whether to defrost in an existing air conditioner, and belongs to the existing technical features, so that details are not repeated herein, and after the preset defrosting condition is reached, the air conditioner may be defrosted, but in order to further optimize the defrosting process or improve user experience, after the defrosting condition is reached, the defrosting process may be further controlled, for example, the shutdown time of the air conditioner may be further obtained in the scheme of the application.
For example, taking the prior art as an example, an air conditioner is operated for heating, a user sets to operate for 3 hours to wait for shutdown, when the air conditioner is operated for 2 hours and 52 minutes, a defrosting condition is met, the air conditioner is conventionally operated for defrosting, defrosting time is calculated in 5 minutes, the original heating operation is continued when the air conditioner is operated for 2 hours and 57 minutes, and the shutdown is executed when the air conditioner is operated for 3 minutes, so that the last defrosting process is completely unnecessary, and therefore, the defrosting process needs to be further controlled after the defrosting condition is reached, so that the defects of the prior art are reduced.
In order to write the EEPROM information into the FLASH interval, in some embodiments, the shutdown time of the air conditioner is specifically obtained in the following manner:
acquiring the shutdown time of the air conditioner based on the timing shutdown time input by the user, or;
determining a shutdown time of the air conditioner based on historical shutdown data of the user, or;
and determining the shutdown time of the air conditioner based on the behavior habit information of the user.
In the preferred embodiment of the application, the mode of obtaining the off-time can be the timing off-time through input, the user can set the timing off-time through modes such as remote controller, wire controller, thing networking APP, the mode of obtaining also can be the off-time of inferring the air conditioner according to user's shutdown data in the past, the off-time of learning the prejudgement according to user's custom of shutting down at ordinary times, also can infer the off-time of air conditioner through user's action habit information, detect the action before leaving home like camera/infrared people/radar people, wear the cotton-padded clothes, take the cap and so on. And if the voice detects ' I's points go out ', and the like, the pre-judged power-off time is learned.
It should be noted that the above manner of acquiring the off-time of the air conditioner is only a preferred embodiment of the present application, and a person skilled in the art may determine other acquisition manners according to an actual application scenario, and the difference of the acquisition manners does not affect the protection scope of the present application.
And step S202, when the current time is not more than the difference value between the shutdown time and a first preset time, controlling the air conditioner to execute defrosting operation.
In a preferred embodiment of the present application, in the preferred embodiment of the present application, when the current time is not greater than the difference between the shutdown time and the first preset time, it is described that the difference between the current time and the shutdown time is longer, the defrosting is directly performed, and after the defrosting is finished, the operation is performed according to the original heating mode.
And step S203, when the current time is greater than the difference value between the shutdown time and the first preset time, the defrosting operation is not executed, and the air conditioner is controlled to operate according to the current heating mode.
In a preferred embodiment of the application, if the current time is greater than the difference between the shutdown time and the first preset time, it is indicated that the current time is shorter than the shutdown time, and at this time, defrosting is not performed any more, but the operation is performed according to the original heating mode, so that the resource waste caused by defrosting before shutdown is avoided.
In order to implement shutdown of the air conditioner, in some embodiments, when the current time is greater than a difference between the shutdown time and a first preset time, the defrosting operation is not performed, and the air conditioner is controlled to operate according to the current heating mode, further comprising:
when the current time is larger than the difference value between the shutdown time and a first preset time and the shutdown time of the air conditioner is acquired based on the timed shutdown time input by a user, judging whether the air conditioner is shut down or not based on the shutdown time;
if the current time reaches the shutdown time, the air conditioner is shut down;
and if the current time does not reach the shutdown time, controlling the air conditioner to operate based on a preset mode.
In the preferred embodiment of the application, when the current time is greater than the difference between the shutdown time and the first preset time and the timing shutdown time input by the user is obtained, whether the air conditioner is shut down is judged based on the shutdown time, if the shutdown time is reached, the air conditioner is directly shut down, and if the shutdown time is not reached, the air conditioner is controlled to operate in the preset mode.
In order to control the air conditioner to operate in a preset mode, in some embodiments, the preset mode specifically includes:
reducing the running frequency of a compressor of the air conditioner by a preset frequency, or reducing the indoor air speed by a first preset air speed, or adjusting the angle of an air guide strip of an indoor unit by a preset angle, or increasing the air speed of an outdoor unit by a second preset air speed.
In a preferred embodiment of the present application, when the air conditioner needs to enter a preset mode, the operation frequency of a compressor of the air conditioner is reduced by a preset frequency, and/or the indoor air speed is reduced by a first preset air speed, and/or the angle of an indoor unit air guide strip is adjusted by a preset angle, and/or the outdoor air speed is increased by a second preset air speed.
The process of air conditioner frosting can be slowed down through the preset mode, and therefore energy loss is further reduced in the process of shutting down the air conditioner.
In order to ensure the operation in the preset mode, in some embodiments, if the current time does not reach the shutdown time, the method further includes, after controlling the air conditioner to operate based on the preset mode:
when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, judging whether the current time is less than the sum of the shutdown time and a second preset time;
if yes, controlling the air conditioner to execute defrosting operation, and after defrosting is finished, controlling the air conditioner to operate in an original heating mode;
if not, controlling the air conditioner to keep running in a preset mode.
In the preferred embodiment of the application, when the air conditioner runs in a preset mode and does not receive a shutdown instruction within a preset duration, in order to guarantee the running state of the air conditioner and the experience of a user, whether the current time is less than the sum of the shutdown time and the second preset time is further judged, if yes, the air conditioner is controlled to execute defrosting operation, after defrosting is completed, the air conditioner is controlled to run in an original heating mode, and if not, the air conditioner is controlled to keep running in the preset mode.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011017917.4A CN112303813B (en) | 2020-09-24 | 2020-09-24 | A kind of air conditioner and air conditioner defrosting method |
| CN202180063395.8A CN116194719A (en) | 2020-09-24 | 2021-06-29 | Air conditioner and defrosting method thereof |
| PCT/CN2021/103100 WO2022062530A1 (en) | 2020-09-24 | 2021-06-29 | Air conditioner and air conditioner defrost method |
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| CN116194719A (en) * | 2020-09-24 | 2023-05-30 | 青岛海信日立空调系统有限公司 | Air conditioner and defrosting method thereof |
| CN113757920B (en) * | 2021-08-26 | 2023-01-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Defrosting control method and device, computer equipment and storage medium |
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