CN112050356A - Control method and control device for defrosting of air conditioner and air conditioner - Google Patents
Control method and control device for defrosting of air conditioner and air conditioner Download PDFInfo
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- CN112050356A CN112050356A CN201910491598.1A CN201910491598A CN112050356A CN 112050356 A CN112050356 A CN 112050356A CN 201910491598 A CN201910491598 A CN 201910491598A CN 112050356 A CN112050356 A CN 112050356A
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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
- F24F11/62—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
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Air Conditioning Control Device (AREA)
Abstract
The application relates to a control method and a control device for defrosting of an air conditioner and the air conditioner. The control method comprises the following steps: acquiring the outdoor environment temperature corresponding to the air conditioner; and controlling the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner so as to enable the water temperature in the water storage device to meet the defrosting water temperature condition. According to the control method for defrosting of the air conditioner, the heating device is controlled according to the outdoor environment temperature, so that the water temperature in the water storage device can meet the preset defrosting water temperature condition, the spray water of the air conditioner in the process of executing the defrosting mode can always meet the water temperature requirement for achieving a better defrosting effect, and the problem that the defrosting effect is influenced due to the fact that the water temperature is uncontrollable due to the influence of the outdoor environment in the related technology is effectively reduced.
Description
Technical Field
The present application relates to the field of air conditioner defrosting technologies, and for example, to a control method and a control device for air conditioner defrosting, and an air conditioner.
Background
Along with the improvement of living standard of people, air conditioning equipment has also gone into thousands of households, the use of domestic air conditioners and central air conditioners is more and more common, the requirement of users on the comfort level of the air conditioners is more and more high, the problems existing in the use process of the air conditioners are also gradually exposed, and one of the problems is the problem that an outdoor unit of the air conditioner is frosted and frozen when the air conditioner operates in severe cold climate. When the air conditioner operates in a low-temperature area or an area with large wind and snow, the condensed water flow on the outer surface of the condenser of the outdoor unit can drop on the base plate, the condenser and the base plate of the air conditioner can be frozen under the condition that the air conditioner operates for a long time, the condensed ice layer on the outdoor unit can obstruct the heat exchange between the internal refrigerant and the outdoor environment, the refrigerating efficiency of the air conditioner is reduced, in order to ensure the heating effect of the air conditioner, the air conditioner has to operate with increased power, and the extra consumption of electric energy and the use cost of a user are increased.
Therefore, some conventional air conditioners have a defrosting function for defrosting an outdoor unit of the air conditioner by spraying a liquid such as an antifreeze solution or water, for example, by heating the outdoor unit with a heating device provided in the outdoor unit, defrosting an outdoor heat exchanger with a high-temperature refrigerant discharged from a compressor, or defrosting the outdoor unit with a high-temperature refrigerant.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
for the air-conditioning products that adopt liquids such as spray water to defrost, often have the not good problem of defrosting effect when in actual application, the main reason is that the outdoor environment that influences the outdoor unit frost freezing not only can constitute the influence to the outdoor unit, can also influence the relevant device that stores and sprays above-mentioned liquid simultaneously, for example the defrosting water can freeze the phenomenon by the influence of temperature under the low temperature environmental condition, can not normally spray the operation when the air conditioner needs to defrost, therefore the air conditioner defrosting purpose that just can't realize.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method and a control device for defrosting of an air conditioner and the air conditioner, and aims to solve the technical problem that an air conditioner product which is defrosted by liquid such as spray water is affected by outdoor environment in the practical application process to cause poor defrosting effect.
In some embodiments, the control method comprises:
acquiring the outdoor environment temperature corresponding to the air conditioner;
and controlling the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner so as to enable the water temperature in the water storage device to meet the defrosting water temperature condition.
In some embodiments, the control device comprises:
the first acquisition module is configured to acquire an outdoor environment temperature corresponding to the air conditioner;
and the heating control module is configured to control the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner, so that the water temperature in the water storage device meets the defrosting water temperature condition.
In some embodiments, the air conditioner includes an outdoor unit and an outdoor defrosting device, the outdoor defrosting device includes a heating device, a water storage device and a spraying device, wherein the heating device is configured to controllably heat water stored in the water storage device, and the spraying device is configured to controllably spray water in the water storage device to an outdoor heat exchanger of the outdoor unit; the air conditioner also comprises the control device.
Some technical solutions provided by the embodiments of the present disclosure can achieve the following technical effects:
according to the control method for defrosting of the air conditioner, the heating device is controlled according to the outdoor environment temperature, so that the water temperature in the water storage device can meet the preset defrosting water temperature condition, the spray water of the air conditioner in the process of executing the defrosting mode can always meet the water temperature requirement for achieving a better defrosting effect, and the problem that the defrosting effect is influenced due to the fact that the water temperature is uncontrollable due to the influence of the outdoor environment in the related technology is effectively reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic flowchart of a control method for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The embodiment of the disclosure provides an air conditioner, which comprises an indoor unit, an outdoor unit and an outdoor defrosting device.
The indoor unit comprises an indoor evaporator, an indoor fan and other components, wherein the indoor evaporator is set to exchange heat with the indoor environment so as to cool the indoor environment when the air conditioner operates in a cooling mode or heat the indoor environment when the air conditioner operates in a heating mode.
The outdoor unit includes an outdoor heat exchanger, a compressor, etc., and the outdoor heat exchanger is configured to exchange heat with an outdoor environment to discharge heat absorbed by the indoor heat exchanger to the outdoor environment when the air conditioner operates in a cooling mode, or to absorb heat from the outdoor environment and to transfer the heat to the indoor environment by the indoor heat exchanger when the air conditioner operates in a heating mode.
When the air conditioner operates in winter severe cold weather, frost is easily condensed on the outdoor heat exchanger due to low temperature of the outdoor environment, and the condensed frost can block the heat exchange efficiency of the outdoor heat exchanger and the outdoor environment; aiming at the problem of frost condensation and formation of the outdoor heat exchanger, the outdoor defrosting device is set to be capable of defrosting the outdoor heat exchanger so as to reduce the amount of frost condensed on the outdoor heat exchanger and ensure the heating performance of the air conditioner in winter in severe cold weather.
In the embodiment of the disclosure, the outdoor defrosting device mainly comprises a heating device, a water storage device, a spraying device and the like; the water storage device is set to store water which can be used for defrosting, the heating device is set to controllably heat the water stored in the water storage device, and the spraying device is set to controllably spray the water in the water storage device to the outdoor heat exchanger of the outdoor unit, so that the heat of hot water is utilized to melt frost on the outdoor heat exchanger, and the purpose of defrosting and defrosting the outdoor unit is achieved.
In an alternative embodiment, the water storage means is a water storage tank having a water storage chamber defined therein in which water for defrosting can be stored; optionally, the outside parcel in water storage chamber has the heat preservation to utilize the heat exchange of the water of heat preservation separation water storage intracavity and external environment, alleviate the temperature influence of external environment to the water of water storage intracavity.
Optionally, the water storage device further comprises a heating water outlet pipeline, a heating water return pipeline and a defrosting water outlet pipeline which are respectively communicated with the water storage cavity;
the heating water outlet pipeline and the heating water return pipeline are respectively communicated with the heating device, so that the water storage cavity and the heating device form a circulating flow path for heating water, low-temperature water to be heated flows out of the heating water outlet pipeline to the heating device, the heating device heats the low-temperature water into high-temperature water, and then the high-temperature water flows back to the water storage cavity through the heating water return pipeline.
The heating water outlet pipeline is provided with a first water pump, and the first water pump is used for driving water to flow from the water storage cavity to the heating device along the heating water outlet pipeline; and a second water pump is arranged on the heating water return pipeline and used for driving water to flow back to the water storage cavity from the heating device along the heating water return pipeline.
The defrosting water outlet pipeline is communicated with the spraying device, and a third water pump is arranged on the defrosting pipeline and is used for driving water to flow to the spraying device from the water storage cavity along the defrosting water storage pipeline, so that the spraying device can spray hot water in the water storage cavity onto the outdoor heat exchanger of the outdoor unit.
Optionally, the heating device comprises a solar heating device, which can convert the radiation energy of the sun into heat energy and use the converted heat energy to heat the low-temperature water delivered by the heating water outlet pipeline.
The solar heating device mainly comprises a heat absorbing plate, a cover plate, a shell and the like, wherein a space for accommodating the heat absorbing plate is defined in the shell, the cover plate covers one side face of the shell, sunlight is radiated on the heat absorbing plate through the cover plate, and the heat absorbing plate can absorb energy of solar radiation and convert the energy into heat energy.
The heat absorption plate is internally provided with a working medium flow path, two ports of the working medium flow path are respectively communicated with a heating water outlet pipeline and a heating water return pipeline, water conveyed by the heating water outlet pipeline is heated and heated in the process of flowing through the working medium flow path, and then flows back to the water storage cavity through the heating water return pipeline, so that heat energy converted by the heat absorption plate is transferred to circulating water.
Optionally, the heating device includes an electric heating device, which can convert electric energy into heat energy, and the converted heat energy is used to heat the low-temperature water delivered by the heating water outlet pipeline.
In one embodiment, the electric heating device comprises a resistance wire assembly and a power supply assembly, wherein the resistance wire assembly can be directly arranged in the water storage cavity, and after the resistance wire assembly is electrified, the resistance wire assembly can generate a large amount of heat for directly heating water in the water storage cavity; the power supply assembly is electrically connected with the resistance wire assembly, and the power supply assembly can be a battery or a power line and other parts which can be connected with an external power supply.
Here, the electric heating device is also provided with a power adjusting component, and the heating rate of the resistance wire component can be changed by changing the current or voltage supplied to the resistance wire component, so that the heating power of the electric heating device can be adjusted.
Alternatively, the heating device includes a heat storage device configured to store heat of a compressor of the outdoor unit.
The heat storage device comprises a heat conduction pipe which is arranged around the outer side of the compressor body, the heat conduction pipe can be in direct heat conduction contact with the compressor or in indirect heat conduction contact with the compressor through fins and the like, and the heat generated by the compressor during operation can be conducted to the heat conduction pipe so as to increase the heat of the heat conduction pipe;
the heat conducting pipe is internally used as a working medium flow path, two ends of the heat conducting pipe are respectively communicated with the heating water outlet pipeline and the heating water return pipeline, water conveyed by the heating water outlet pipeline is heated and heated in the process of flowing through the working medium flow path, and then flows back to the water storage cavity through the heating water return pipeline, so that heat energy converted by the heat absorbing plate is transferred to circulating water.
Optionally, the heating device includes an exhaust branch, two ends of the exhaust branch are respectively connected in parallel to an exhaust pipe of a compressor of the outdoor unit and a liquid outlet pipe of an indoor heat exchanger of the indoor unit in the heating mode, and the exhaust branch can heat water in the water storage device by using heat of a high-temperature refrigerant discharged from the compressor through an exhaust port.
At least part of pipelines of the exhaust branch are arranged in the water storage cavity and are made of heat conduction materials; the high temperature refrigerant discharged from the air outlet of the compressor partially flows along the original exhaust pipeline of the air conditioner, and the other part flows along the exhaust branch and exchanges heat with the refrigerant in the water storage cavity when flowing through the partial pipelines so as to heat the water in the water storage cavity by using the heat of the high temperature refrigerant.
In this embodiment, the air conditioner is further provided with two control valves, wherein the two control valves include a first control valve arranged in the exhaust pipe, and the first control valve can be used for controlling the on-off state and the refrigerant flow rate of a refrigerant flow path flowing through the exhaust pipe; and the second control valve is arranged on the exhaust branch and can be used for controlling the on-off state and the refrigerant flow of the refrigerant flow path flowing through the exhaust branch.
In various embodiments of the present disclosure, the heating device of the air conditioner may be one or more of the above-described various heating device types, so that the water in the water storage device can be heated by one of the heating devices alone, or by more than one water storage device simultaneously.
Optionally, if the heating device of the air conditioner comprises a solar heating device and a heat storage device, the solar heating device and the heat storage device are both communicated with the water storage cavity of the water storage device through a heating water outlet pipeline and a heating water return pipeline; here, in order to simplify the number of pipes, both the solar heating apparatus and the thermal storage apparatus may be connected in parallel, and a bypass control valve may be provided on each parallel pipe, so that the heating function of the solar heating apparatus and the thermal storage apparatus may be turned on or off by controlling the on/off state of each bypass control valve.
When the branch control valve is in an open state, the parallel pipeline where the corresponding solar heating device or heat storage device is located is conducted, so that the heating function of the solar heating device or heat storage device on water flowing through the parallel pipeline is started; when the branch control valve is in a closed state, the parallel pipeline where the corresponding solar heating device or heat storage device is located is blocked, so that the heating function of the solar heating device or heat storage device on water is closed.
Optionally, the power supply assembly of the electric heating device is provided with a switch assembly, and the switch assembly can be used for controlling the on-off device of the power supply assembly to the power supply circuit of the resistance wire assembly, so as to switch on the power supply circuit when the switch assembly is in an on state, and switch off the power supply circuit when the switch assembly is in an off state, thereby realizing the on-off operation of the electric heating device.
Optionally, the heating device using the exhaust branch may implement the on-off operation of the heating function of the heating device of this type by controlling the on-off state of the second control valve disposed in the exhaust branch.
In an embodiment of the disclosure, the spray device comprises a spray pipe.
The spray pipe is arranged along the longitudinal direction or the transverse direction of the outdoor heat exchanger, or the spray pipe is arranged above the outdoor heat exchanger; one or more than one spraying hole is formed in the spraying pipe, and water pumped by the third water pump can be sprayed to the outdoor heat exchanger under the action of water pressure.
Here, the number of the spray pipes is one or more than one; the plurality of spray pipes are arranged in parallel or in a cross mode, so that water sprayed out by the spray pipes can cover most of the area of the outdoor heat exchanger, the defrosting effect of the outdoor heat exchanger is guaranteed, and excessive condensation of local frost is avoided.
Optionally, the outdoor defrosting device further comprises a water replenishing device, and the water replenishing device can be used for replenishing water into the water storage device of the water storage device.
In one embodiment, the water replenishing device comprises a water replenishing pipe, one end of the water replenishing pipe is communicated with the water storage cavity, the other end of the water replenishing pipe can be communicated with a household water source, a fourth water pump is arranged on the water replenishing pipe, and the fourth water pump can be used for driving water to be conveyed from one end of the household water source to one end of the water storage cavity, so that water consumed in the water storage cavity can be replenished.
Fig. 1 is a schematic flow chart of a control method for defrosting an air conditioner according to an embodiment of the present disclosure.
As shown in fig. 1, an embodiment of the present disclosure provides a control method for defrosting an air conditioner, including:
s101, acquiring an outdoor environment temperature corresponding to an air conditioner;
optionally, the outdoor unit of the air conditioner is provided with a temperature sensor, and the temperature sensor can be used for detecting the real-time temperature of the outdoor environment; step S101, acquiring the real-time temperature of the outdoor environment detected by the temperature sensor, and taking the real-time temperature as the outdoor environment temperature;
and S102, controlling the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner, so that the water temperature in the water storage device meets the defrosting water temperature condition.
Optionally, the defrost water temperature conditions include: the water temperature in the water storage device is larger than or equal to a set water temperature threshold value.
Here, the water temperature threshold is set to be a preset water temperature threshold for indicating that a good defrosting effect can be achieved. Therefore, when the spraying device sprays water with the first water temperature which is greater than or equal to the set water temperature threshold value onto the outdoor heat exchanger, the water temperature is higher at the moment, so that the heat carried by the sprayed water can melt the frost condensed on the outdoor heat exchanger, and a higher defrosting and deicing effect can be achieved; when the water temperature of the water storage device is smaller than the set water temperature threshold value, the actual defrosting and ice melting effects are poor, so that the heating device of the air conditioner is controlled according to the outdoor environment, the water temperature in the heated water storage device can meet the defrosting conditions, and the water sprayed by the spraying device can keep a good defrosting effect when the air conditioner starts a defrosting mode.
Optionally, the value of the set water temperature threshold is a temperature value greater than or equal to 5 ℃, such as 5 ℃, 8 ℃, and the like.
According to the control method for defrosting of the air conditioner, the heating device is controlled according to the outdoor environment temperature, so that the water temperature in the water storage device can meet the preset defrosting water temperature condition, the spray water of the air conditioner in the process of executing the defrosting mode can always meet the water temperature requirement for achieving a better defrosting effect, and the problem that the defrosting effect is influenced due to the fact that the water temperature is uncontrollable due to the influence of the outdoor environment in the related technology is effectively reduced.
Fig. 2 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 2, an embodiment of the present disclosure further provides a control method for defrosting an air conditioner, which includes the steps of:
s201, acquiring an outdoor environment temperature corresponding to an air conditioner;
s202, judging whether the outdoor environment temperature meets a first temperature condition, if so, executing a step S203, otherwise, returning to execute the step S201;
optionally, the first temperature condition includes: the outdoor environment temperature is less than the preset outer ring temperature threshold.
Optionally, the preset outer ring temperature threshold is 0 ℃.
And S203, controlling to start the heating device.
In the embodiment of the present disclosure, when the outdoor ambient temperature is lower than the preset outer annular temperature threshold, it indicates that the outdoor ambient temperature is lower, the water temperature in the water storage device is greatly influenced by the low temperature of the outdoor environment, and the water temperature may be lower, so that the subsequent step of activating the heating device is controlled to be executed, so that the water in the water storage device can still maintain a higher water temperature state under the condition that the outdoor ambient temperature is lower.
Fig. 3 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 3, an embodiment of the present disclosure further provides a control method for defrosting an air conditioner, which includes the steps of:
s301, acquiring an outdoor environment temperature corresponding to an air conditioner;
s302, judging whether the outdoor environment temperature meets a first temperature condition, if so, executing a step S305, and if not, executing a step S303;
optionally, the first temperature condition includes: the outdoor environment temperature is less than the preset outer ring temperature threshold.
Optionally, the preset outer ring temperature threshold is 0 ℃.
S303, acquiring the accumulated running time of the compressor after the air conditioner is started;
in the embodiment of the present disclosure, the air conditioner is further provided with a timing mode, the timing module may be configured to record an operation duration of the compressor, and step S303 is to obtain an accumulated operation duration of the compressor through the timing mode;
when the air conditioner is turned off, the accumulated running time of the compressor of the air conditioner which is turned on at this time is reset by the timing module;
s304, judging whether the accumulated running time of the compressor meets a time length condition, if so, executing a step S305, and if not, executing a step S303;
optionally, the duration condition includes: the accumulated running time is greater than or equal to a preset time threshold.
Optionally, the preset time threshold is 45 to 60 minutes.
S305, controlling to start the heating device.
In the embodiment of the present disclosure, in the case that the first temperature condition is not satisfied in the foregoing embodiment, the determination on the time setting condition is further introduced, where, in the case that the accumulated operation time of the air conditioner compressor is short, the condensed frost on the air conditioner outdoor unit may be less, and therefore, the entering of the defrosting mode may be temporarily not considered; under the condition that the accumulated running time of the air conditioner compressor is long, more frost is possibly condensed on the air conditioner outdoor unit, and the air conditioner is very likely to trigger a defrosting mode; therefore, in order to ensure that the water temperature can meet the defrosting requirement when the defrosting mode is executed, the air conditioner is still controlled to start the defrosting mode so as to ensure that the water in the water storage device can keep a higher water temperature state.
Fig. 4 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 4, an embodiment of the present disclosure further provides a control method for defrosting an air conditioner, which includes the steps of:
s401, acquiring an outdoor environment temperature corresponding to an air conditioner;
s402, judging whether the outdoor environment temperature meets a first temperature condition, if so, executing a step S406, and if not, returning to execute a step S403;
optionally, the first temperature condition includes: the outdoor environment temperature is less than the preset outer ring temperature threshold.
Optionally, the preset outer ring temperature threshold is 0 ℃.
S403, acquiring the current indoor coil temperature;
optionally, the indoor unit of the air conditioner is provided with a temperature sensor, and the temperature sensor can be used for detecting the real-time temperature of the coil pipe of the indoor unit; in step S403, the real-time temperature of the coil detected by the temperature sensor is obtained and used as the indoor coil temperature;
s404, calling the maximum indoor coil temperature value in the historical data;
here, the maximum value of the indoor coil temperature is the maximum value of more than one indoor coil temperatures recorded after the air conditioner is started up at this time;
in the embodiment of the present disclosure, the air conditioner stores the indoor coil temperatures detected by the temperature sensors at different times as historical data, so that the indoor coil temperatures stored in the historical data may be called in step S404, and the maximum value of the indoor coil temperatures is determined by means of numerical comparison, etc.;
s405, judging whether the temperature difference is larger than a preset difference threshold, if so, executing a step S406, and if not, executing a step S403;
wherein the temperature difference is a temperature difference between the maximum indoor coil temperature in step S404 and the indoor coil temperature in step S403;
optionally, the difference threshold is 5 ℃.
And S406, controlling to start the heating device.
In the embodiment of the present disclosure, in the foregoing embodiment, in the case that the first temperature condition is not satisfied, a judgment on a second temperature condition related to a fading condition of the indoor coil temperature is further introduced, where, in the case that the temperature difference is small, frost condensed on the outdoor unit of the air conditioner may be less, so that the influence on the indoor coil temperature and the heating performance of the air conditioner is small, and the entering of the defrosting mode may be temporarily not considered; under the condition of large temperature difference, the condensed frost on the outdoor unit of the air conditioner is likely to be more, and the air conditioner is likely to trigger a defrosting mode; therefore, in order to ensure that the water temperature can meet the defrosting requirement when the defrosting mode is executed, the air conditioner is still controlled to start the defrosting mode so as to ensure that the water in the water storage device can keep a higher water temperature state.
In an optional embodiment, the control method for defrosting an air conditioner of the present application further includes: and when the water quantity in the water storage device does not meet the water quantity condition and the air conditioner does not enter the defrosting mode, controlling to supplement water to the water storage device.
In the implementation of the disclosure, a water level detector is further arranged in the water storage device, the water level detector can detect the water level data of the water stored in the water storage cavity, and thus the air conditioner can calculate the real-time water amount in the water storage cavity according to the height change of the stored water level data.
Here, in the case where the water amount in the water storage device does not satisfy the water amount condition, when the air conditioner starts the defrosting mode next time, the process of spraying and defrosting may occur due to the insufficient water amount, and thus the water amount in the water storage device of the air conditioner needs to satisfy the water amount condition.
Optionally, the water amount conditions include: the water quantity in the water storage device is larger than or equal to the set water quantity threshold value.
Here, the set water amount threshold may be a fixed value such as 1/2, 1/3, etc. of the total water amount.
Alternatively, the set water volume threshold may be dynamically set according to an estimated degree of frosting of the outdoor unit of the air conditioner.
In an optional embodiment, the estimation of the frosting degree of the outdoor unit can be implemented according to the current outdoor environment temperature, for example, when the outdoor environment temperature is lower, the outdoor environment is worse, the estimated frosting degree of the air conditioner is higher, and at this time, the spraying device needs more water to achieve a better defrosting effect, so that the set water threshold value can be set to a higher value, such as 1/2,2/3 and the like of the total water amount; when the outdoor environment temperature is high, the outdoor environment is good, the estimated frosting degree of the air conditioner is low, and at the moment, the water quantity required by the spraying device for realizing a good defrosting effect is small, so that the set water quantity threshold value can be set to be a low value, such as 1/4,1/3 and the like of the total water quantity.
Here, since the source of the water supplement is a domestic water source, the temperature thereof is generally low; if water is supplemented in the process of the air conditioner running in the defrosting mode, the water temperature of the water mixed in the water storage cavity is suddenly reduced, and the problems that the air conditioner is interrupted and the air conditioner exits the first defrosting mode easily occur; therefore, the water replenishing operation of the water storage device in the embodiment of the disclosure is performed on the premise that the air conditioner does not enter the defrosting mode, so as to ensure the normal operation of the defrosting mode of the air conditioner.
Fig. 5 is a schematic structural diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure.
As shown in fig. 5, an embodiment of the present disclosure also provides a control apparatus for defrosting an air conditioner, which is applicable to an air conditioner and enables the air conditioner to perform the control flow shown in the above embodiment; the control device 5 includes:
a first obtaining module 51 configured to obtain an outdoor ambient temperature corresponding to the air conditioner;
and the heating control module 52 is configured to control the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner, so that the water temperature in the water storage device meets the defrosting water temperature condition.
In an alternative embodiment, the heating control module 52 is configured to:
when the outdoor environment temperature meets a first temperature condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
when the outdoor environment temperature does not meet the first temperature condition and the accumulated running time of the compressor after the air conditioner is started up at this time meets the time condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
and when the outdoor environment temperature does not meet the first temperature condition and the temperature of the indoor coil of the air conditioner meets the second temperature condition, controlling to start the heating device.
In an alternative embodiment, the first temperature condition comprises: the outdoor environment temperature is less than the preset outer ring temperature threshold.
In an alternative embodiment, the duration condition includes: the accumulated running time is greater than or equal to a preset time threshold.
In an alternative embodiment, the second temperature condition comprises: the temperature difference value between the maximum value of the indoor coil temperature and the indoor coil temperature is larger than a preset difference threshold value, wherein the maximum value of the indoor coil temperature is the maximum value of more than one indoor coil temperatures recorded after the air conditioner is started up at this time.
In an optional embodiment, the control device 5 further comprises a water replenishment control module configured to:
and when the water quantity in the water storage device does not meet the water quantity condition and the air conditioner does not enter the defrosting mode, controlling to supplement water to the water storage device.
The specific execution manner of the control flow executed by the control device to control the air conditioner in the present application may refer to the corresponding part of the foregoing embodiments of the control method, and is not described herein again.
The embodiment of the disclosure also provides an air conditioner, which comprises an outdoor unit and an outdoor defrosting device, wherein the outdoor defrosting device comprises a heating device, a water storage device and a spraying device, the heating device is arranged to controllably heat the water stored in the water storage device, and the spraying device is arranged to controllably spray the water in the water storage device to an outdoor heat exchanger of the outdoor unit; the air conditioner further comprises the control device provided in the previous embodiment.
The embodiment of the present disclosure also provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for defrosting an air conditioner provided in the above embodiment.
Embodiments of the present disclosure also provide a computer program product comprising a computer program stored on a computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the control method for defrosting an air conditioner provided in the above-described embodiments.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
An embodiment of the present disclosure further provides an electronic device, a structure of which is shown in fig. 6, where the electronic device includes:
at least one processor (processor)600, such as processor 600 in FIG. 6; and a memory (memory)601, and may further include a Communication Interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via a bus 603. The communication interface 602 may be used for information transfer. The processor 600 may call logic instructions in the memory 601 to execute the control method for air conditioner defrosting provided in the above-described embodiment.
In addition, the logic instructions in the memory 601 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 601 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes functional applications and data processing by running software programs, instructions and modules stored in the memory 601, that is, implements the control method for defrosting an air conditioner in the above-described method embodiment.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 601 may include a high speed random access memory, and may also include a non-volatile memory.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the control apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A control method for defrosting of an air conditioner is characterized in that the air conditioner comprises an outdoor unit and an outdoor defrosting device, wherein the outdoor defrosting device comprises a heating device, a water storage device and a spraying device, the heating device is arranged to controllably heat water stored in the water storage device, and the spraying device is arranged to controllably spray the water in the water storage device to an outdoor heat exchanger of the outdoor unit;
the control method comprises the following steps:
acquiring the outdoor environment temperature corresponding to the air conditioner;
and controlling the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner so as to enable the water temperature in the water storage device to meet the defrosting water temperature condition.
2. The control method according to claim 1, wherein the controlling the air conditioner to turn on the heating device according to the outdoor ambient temperature corresponding to the air conditioner comprises:
when the outdoor environment temperature meets a first temperature condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
when the outdoor environment temperature does not meet the first temperature condition and the accumulated running time of the compressor after the air conditioner is started up at this time meets the time length condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
and when the outdoor environment temperature does not meet the first temperature condition and the temperature of the indoor coil of the air conditioner meets a second temperature condition, controlling to start the heating device.
3. The control method according to claim 2, wherein the first temperature condition includes: the outdoor environment temperature is less than the preset outer ring temperature threshold.
4. The control method according to claim 2, wherein the duration condition includes: the accumulated running time is greater than or equal to a preset time threshold.
5. The control method according to claim 2, wherein the second temperature condition includes: the temperature difference value between the maximum value of the indoor coil temperature and the indoor coil temperature is larger than a preset difference threshold value, wherein the maximum value of the indoor coil temperature is the maximum value of more than one indoor coil temperatures recorded after the air conditioner is started up at this time.
6. The control method according to claim 1, characterized by further comprising:
and when the water quantity in the water storage device does not meet the water quantity condition and the air conditioner does not enter the defrosting mode, controlling the water storage device to supplement water.
7. A control device for defrosting of an air conditioner, which is characterized in that the air conditioner comprises an outdoor unit and an outdoor defrosting device, wherein the outdoor defrosting device comprises a heating device, a water storage device and a spraying device, the heating device is arranged to controllably heat water stored in the water storage device, and the spraying device is arranged to controllably spray the water in the water storage device to an outdoor heat exchanger of the outdoor unit;
the control device includes:
the first acquisition module is configured to acquire an outdoor environment temperature corresponding to the air conditioner;
and the heating control module is configured to control the air conditioner to start the heating device according to the outdoor environment temperature corresponding to the air conditioner, so that the water temperature in the water storage device meets the defrosting water temperature condition.
8. The control device of claim 7, wherein the heating control module is configured to:
when the outdoor environment temperature meets a first temperature condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
when the outdoor environment temperature does not meet the first temperature condition and the accumulated running time of the compressor after the air conditioner is started up at this time meets the time length condition, controlling to start the heating device; alternatively, the first and second electrodes may be,
and when the outdoor environment temperature does not meet the first temperature condition and the temperature of the indoor coil of the air conditioner meets a second temperature condition, controlling to start the heating device.
9. The control device according to claim 8,
the first temperature condition includes: the outdoor environment temperature is less than a preset outer ring temperature threshold value;
the duration condition comprises the following steps: the accumulated running time is greater than or equal to a preset time threshold;
the second temperature condition includes: the temperature difference value between the maximum value of the indoor coil temperature and the indoor coil temperature is larger than a preset difference threshold value, wherein the maximum value of the indoor coil temperature is the maximum value of more than one indoor coil temperatures recorded after the air conditioner is started up at this time.
10. An air conditioner, characterized in that the air conditioner comprises an outdoor unit and an outdoor defrosting device, wherein the outdoor defrosting device comprises a heating device, a water storage device and a spraying device, wherein the heating device is arranged to controllably heat water stored in the water storage device, and the spraying device is arranged to controllably spray the water in the water storage device to an outdoor heat exchanger of the outdoor unit; the air conditioner further includes a control device according to any one of claims 7 to 9.
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