CN110017582A - Defrosting control method for air conditioner - Google Patents
Defrosting control method for air conditioner Download PDFInfo
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- CN110017582A CN110017582A CN201910152741.4A CN201910152741A CN110017582A CN 110017582 A CN110017582 A CN 110017582A CN 201910152741 A CN201910152741 A CN 201910152741A CN 110017582 A CN110017582 A CN 110017582A
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- Prior art keywords
- defrosting
- air conditioner
- mode
- control method
- outdoor unit
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Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air conditioner technical fields, it is intended to solve the problem of that existing air conditioner will lead to when freezing defrosting and decline in temperature chamber and four-way valve frequently commutates can reduce four-way valve service life.Thus, the present invention provides a kind of defrosting control methods for air conditioner, defrosting control method includes: in air conditioner heat-production operation, judge whether to meet defrosting condition and obtains outdoor environment temperature, according to the judging result and outdoor environment temperature of defrosting condition, air conditioner is selectively made to enter hot water defrosting's mode or refrigeration defrosting mode.The present invention can be when meeting defrosting condition, it is selected to defrost using hot water defrosting's mode or the Defrost mode that freezes according to outdoor environment temperature, rather than it can only be defrosted every time using refrigeration Defrost mode, so as to reduce the number that air conditioner enters refrigeration defrosting mode, and then it is able to extend the heating time of air conditioner, and it can be avoided four-way valve frequently to commutate, so as to extend the service life of four-way valve.
Description
Technical field
The invention belongs to air conditioner technical fields, specifically provide a kind of defrosting control method for air conditioner.
Background technique
Air conditioner is the equipment that can be indoor refrigerating/heating.In air conditioner heat-production operation, the vapor in air will
Hoar crystal is condensed on the surface of outdoor unit heat exchanger, over time, hoar crystal can be increasingly thicker, so that outdoor unit be hindered to change
The cross-ventilation of hot device exchanges heat, and then influences the heating effect of air conditioner, just needs to carry out defrost to outdoor unit heat exchanger at this time.
The Defrost mode of existing air conditioner, which predominantly freezes, to defrost, that is, passes through four-way valve and commutate, refrigerant adverse current, high temperature refrigerant
It is directly entered outdoor unit heat exchanger and carries out pressure defrost.However, air conditioner, which enters refrigeration defrosting mode by heating mode, needs four
Port valve commutation, four-way valve, which frequently commutates, can reduce the service life of four-way valve, also, during freezing defrosting, indoor unit
Blower is in halted state, so as to cause room temperature decline, influences the usage experience of user.
Therefore, this field needs a kind of defrosting control method for air conditioner to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, room will lead in order to solve existing air conditioner when freezing defrosting
Interior temperature decline, and four-way valve frequently commutates the problem of reducing four-way valve service life, and the present invention provides one kind to be used for
The defrosting control method of air conditioner, the defrosting control method include: to judge whether to meet in air conditioner heat-production operation
Defrosting condition simultaneously obtains outdoor environment temperature;According to the judging result of the defrosting condition and the outdoor environment temperature, selection
Property make the air conditioner enter hot water defrosting's mode or refrigeration defrosting mode.
In the optimal technical scheme of above-mentioned defrosting control method, " according to the judging result of the defrosting condition and described
Outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or refrigeration defrosting mode " the step of include:
If meeting the defrosting condition and the outdoor environment temperature being greater than the first preset value, so that the air conditioner is entered hot water and remove
White mode.
In the optimal technical scheme of above-mentioned defrosting control method, " according to the judging result of the defrosting condition and described
Outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or refrigeration defrosting mode " the step of also wrap
It includes: if meeting the defrosting condition and the outdoor environment temperature is less than or equal to first preset value, making described
Air conditioner enters refrigeration defrosting mode.
In the optimal technical scheme of above-mentioned defrosting control method, " according to the judging result of the defrosting condition and described
Outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or refrigeration defrosting mode " the step of also wrap
It includes: if being unsatisfactory for the defrosting condition, the air conditioner not being made to enter hot water defrosting's mode or refrigeration defrosting mode.
In the optimal technical scheme of above-mentioned defrosting control method, first preset value is 0 degree Celsius.
In the optimal technical scheme of above-mentioned defrosting control method, the defrosting condition is the outdoor unit of the air conditioner
Coil temperature is less than the second preset value.
In the optimal technical scheme of above-mentioned defrosting control method, the defrosting control method further include: in the air-conditioning
During device executes hot water defrosting's mode, the coil temperature of the outdoor unit of the air conditioner is obtained;If the outdoor unit
Coil temperature is greater than third preset value, then the air conditioner is made to exit hot water defrosting's mode.
In the optimal technical scheme of above-mentioned defrosting control method, the defrosting control method further include: in the air-conditioning
During device executes refrigeration defrosting mode, the coil temperature of the outdoor unit of the air conditioner is obtained;If the outdoor unit
Coil temperature is greater than the 4th preset value, then the air conditioner is made to exit refrigeration defrosting mode.
In the optimal technical scheme of above-mentioned defrosting control method, the defrosting control method further include: obtain the sky
Adjust the coil temperature of the outdoor unit of device and the runing time of the air conditioner;If the coil temperature of the outdoor unit is less than
The runing time of five preset values and the air conditioner reaches the first preset time, then the air conditioner is made to be forced into refrigeration defrosting
Mode.
In the optimal technical scheme of above-mentioned defrosting control method, " air conditioner is made to be forced into refrigeration defrosting mould
After the step of formula ", the defrosting control method includes: the coil temperature for continuing to obtain the outdoor unit;If the outdoor
The coil temperature of machine is greater than the 6th preset value and continues the second preset time, then the air conditioner is made to exit refrigeration defrosting mode.
It will be appreciated to those of skill in the art that being run in the preferred technical solution of the present invention in air conditioner heat-production
When, judge whether to meet defrosting condition and obtain outdoor environment temperature, according to the judging result of defrosting condition and outdoor environment temperature
Degree selectively makes air conditioner enter hot water defrosting's mode or refrigeration defrosting mode.Setting in this way increases to air conditioner
Hot water defrosting's mode is added, when meeting defrosting condition, air conditioner can select to remove using hot water according to outdoor environment temperature
White mode or refrigeration Defrost mode defrost to outdoor unit heat exchanger, rather than every time can only be using refrigeration Defrost mode
It defrosts, when entering the number of refrigeration defrosting mode so as to reduce air conditioner, and then being able to extend the heating of air conditioner
Between, and can be avoided four-way valve and frequently commutate, so as to extend the service life of four-way valve.Specifically, if meeting
Defrosting condition and outdoor environment temperature are greater than the first preset value, then air conditioner is made to enter hot water defrosting's mode;If meeting defrosting
Condition and outdoor environment temperature are less than or equal to the first preset value, then air conditioner is made to enter refrigeration defrosting mode;If discontented
Sufficient defrosting condition does not make then air conditioner enter hot water defrosting's mode or refrigeration defrosting mode.I.e. when meeting defrosting condition,
That is first judging whether outdoor environment temperature is greater than the first preset value when outdoor unit heat exchanger needs to defrost, if outdoor ring
Border temperature is greater than the first preset value, then can be defrosted using hot water defrosting's mode to outdoor unit heat exchanger, without using
Refrigeration Defrost mode defrosts to outdoor unit heat exchanger, leads so as to avoid entering due to air conditioner refrigeration defrosting mode
The case where causing room temperature to reduce occurs, and also can be avoided reduces the service life of reversal valve since reversal valve frequently commutates.
Further, defrosting control method further include: obtain the coil temperature and air conditioner of outdoor unit of the air conditioner
Runing time, if the coil temperature of outdoor unit less than the runing time of the 5th preset value and air conditioner reach first it is default when
Between, then so that air conditioner is forced into refrigeration defrosting mode.I.e. after air conditioner long-play, one is carried out to outdoor unit heat exchanger
Secondary thoroughly " big defrosting " is remained with the defrosting before eliminating, and is avoided defrosting residual accumulation excessive and is influenced the heating of air conditioner and imitate
Fruit.
Detailed description of the invention
Fig. 1 is the flow chart of defrosting control method of the invention;
Fig. 2 is the flow chart of defrosting control method embodiment of the invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.
The existing air conditioner pointed out based on background technique will lead to room temperature decline, and four-way valve when freezing defrosting
The problem of frequently commutation can reduce four-way valve service life.The present invention provides a kind of defrosting control method for air conditioner,
It is intended to reduce the number that air conditioner enters refrigeration defrosting, so as to extend the heating time of air conditioner, and can be avoided four
Port valve frequently commutates, so as to extend the service life of four-way valve.
Specifically, as shown in Figure 1, defrosting control method of the invention includes: to judge whether in air conditioner heat-production operation
Meet defrosting condition and obtains outdoor environment temperature;According to the judging result and outdoor environment temperature of defrosting condition, selectively
Air conditioner is set to enter hot water defrosting's mode or refrigeration defrosting mode.It should be noted that hot water defrosting refers to using hot water pair
Outdoor unit heat exchanger defrosts, and air conditioner can continue to keep heating operation, so that indoor temperature will not be caused to decline, tool
Body embodiment can be, for example, can the top of outdoor unit be arranged a hot water storage tank, hot water storage tank memory water storage,
When air conditioner enters hot water defrosting's mode, the water valve of hot water storage tank is opened by controller, to make the heat in hot water storage tank
Water flows on outdoor unit heat exchanger to defrost to outdoor unit heat exchanger;Or a water tank can also be set indoors,
A spray equipment is arranged in the top of outdoor heat exchanger in water tank memory water storage, and spray equipment and setting are on water tank
Water pump connection, when air conditioner enters hot water defrosting's mode, by controller open water pump, to make the hot water in water tank
It is sprayed on outdoor unit heat exchanger by spray equipment to defrost to outdoor unit heat exchanger;Etc., it is this to hot water defrosting
Specific embodiment adjustment and change without departing from the principle and scope of the present invention, protection model of the invention should all be limited to
Within enclosing.In addition it is also necessary to explanation, refrigeration defrosting refers to and is commutated by four-way valve, refrigerant adverse current, high temperature refrigerant directly into
Enter outdoor heat exchanger and carries out pressure defrost.
Preferably, as shown in Fig. 2, " according to the judging result and outdoor environment temperature of defrosting condition, selectively making air-conditioning
Device enter hot water defrosting's mode or refrigeration defrosting mode " the step of specifically include: if meeting defrosting condition and outdoor environment
Temperature is greater than the first preset value, then air conditioner is made to enter hot water defrosting's mode;If meeting defrosting condition and outdoor environment temperature
Less than or equal to the first preset value, then air conditioner is made to enter refrigeration defrosting mode;If being unsatisfactory for defrosting condition, do not make sky
Device is adjusted to enter hot water defrosting's mode or refrigeration defrosting mode.I.e. when meeting defrosting condition, that is to say, that need to outdoor unit
When heat exchanger is defrosted, first judge whether outdoor environment temperature is greater than the first preset value, if outdoor environment temperature is greater than the
One preset value is then made air conditioner enter hot water defrosting's mode, that is, is defrosted using hot water to outdoor unit heat exchanger;And such as
Fruit outdoor environment temperature is less than or equal to the first preset value, then air conditioner is made to enter refrigeration defrosting mode;Certainly, if it is discontented
Sufficient defrosting condition, that is to say, that do not need to defrost to outdoor unit heat exchanger, then air conditioner maintains current operating status, both
It also defrosts without refrigeration without hot water defrosting.In a preferred embodiment, the first preset value is 0 degree Celsius, i.e.,
If making air conditioner enter hot water defrosting's mode when meeting defrosting condition and outdoor environment temperature and being greater than 0 degree Celsius;If full
When sufficient defrosting condition but outdoor environment temperature are less than or equal to 0 degree Celsius, then air conditioner is made to enter refrigeration defrosting mode, if
It is unsatisfactory for defrosting condition, then air conditioner is not made to enter hot water defrosting's mode or refrigeration defrosting mode.Setting in this way, gives
Air conditioner increases hot water defrosting's mode, and when meeting defrosting condition, air conditioner can select to adopt according to outdoor environment temperature
It is defrosted with hot water defrosting's mode or refrigeration Defrost mode to outdoor unit heat exchanger, when outdoor environment temperature is Celsius greater than 0
When spending, illustrate outdoor temperature not and be too low, without having to worry about defrosting effect is influenced because of water freezing, hot water defrosting side can be used
Formula defrosts to outdoor unit heat exchanger and defrosts without use refrigeration Defrost mode to outdoor unit heat exchanger, so as to
It avoids entering refrigeration defrosting mode due to air conditioner and room temperature being caused to reduce, and can be avoided four-way valve and frequently change
To so as to extend the service life of four-way valve;And when outdoor temperature is less than or equal to 0 degree Celsius, illustrate outdoor temp
Spend it is relatively low, in order to avoid influencing defrosting effect due to water freezing, at this time using refrigeration Defrost mode to outdoor unit heat exchanger
It defrosts.Certainly, the first preset value is not limited to 0 degree Celsius of above-mentioned example, it is well known that and freezing point temperature is related with pressure,
Pressure increases, and freezing point temperature accordingly reduces, and those skilled in the art in a particular application, can neatly set according to the actual situation
The specific value of the first preset value is set, for example, the first preset value may be arranged as subzero 1 degree Celsius or 1 degree Celsius etc., only
It can be avoided by the separation that the first preset value determines since water freezing influences defrosting effect.
Preferably, defrosting condition is the coil temperature of outdoor unit of the air conditioner less than the second preset value.I.e. when outdoor unit
When coil temperature is less than the second preset value, illustrate to need to defrost to outdoor unit heat exchanger at this time, and specific Defrost mode
It needs to be selected according to outdoor environment temperature, when outdoor environment temperature is greater than the first preset value, (the first preset value be can be set
It is 0 degree Celsius) when, it is defrosted using hot water defrosting's mode, and when outdoor environment temperature is less than or equal to the first preset value
When (the first preset value can be set to 0 degree Celsius), defrosted using refrigeration Defrost mode.It should be noted that this field
Technical staff can flexibly set the specific value of the second preset value in practical application, as long as determined by the second preset value
Critical point can judge whether outdoor unit heat exchanger needs defrosting.Certainly, in practical applications, indoor unit can also be passed through
Coil temperature judge whether outdoor unit heat exchanger needs to defrost, or pass through the coil temperature of outdoor unit and the disk of indoor unit
The mode that tube temperature degree combines judge outdoor unit heat exchanger whether need defrost, etc., it is this to defrosting condition specifically sentencing
The adjustment and change of disconnected mode should all limit within protection scope of the present invention without departing from the principle and scope of the present invention.
Preferably, defrosting control method further include: during air conditioner executes hot water defrosting's mode, obtain air conditioner
Outdoor unit coil temperature, if the coil temperature of outdoor unit be greater than third preset value, so that air conditioner is exited hot water defrosting
Mode.I.e. when the coil temperature of outdoor unit is greater than third preset value, illustrate that the hoar crystal on outdoor unit heat exchanger has been cleared by
Remaining hoar crystal temporarily will not influence the heating effect of air conditioner on clean or outdoor unit heat exchanger, can make air conditioner at this time
Hot water defrosting's mode is exited, defrosting work is stopped.It should be noted that those skilled in the art can practical application neatly
The specific value of third preset value is set, as long as can judge that outdoor unit heat exchanger is by the critical point that third preset value determines
It is no to need to continue defrosting.Certainly, in practical applications, it can also judge that outdoor unit changes by the coil temperature of indoor unit
Whether hot device needs to continue to defrost, or in such a way that the coil temperature of the coil temperature of outdoor unit and indoor unit combines come
Judge whether outdoor unit heat exchanger needs to continue defrosting, etc., this tool for whether needing to continue defrosting to outdoor unit heat exchanger
The adjustment of body judgment mode and change without departing from the principle and scope of the present invention, should all be limited to protection scope of the present invention it
It is interior.
Preferably, defrosting control method further include: during air conditioner executes refrigeration defrosting mode, obtain air conditioner
Outdoor unit coil temperature, if the coil temperature of outdoor unit be greater than the 4th preset value, make air conditioner exit refrigeration defrosting
Mode.I.e. when the coil temperature of outdoor unit is greater than four preset values, illustrate that the hoar crystal on outdoor unit heat exchanger has been cleared by
Remaining hoar crystal temporarily will not influence the heating effect of air conditioner on clean or outdoor unit heat exchanger, can make air conditioner at this time
Refrigeration defrosting mode is exited, defrosting work is stopped.It should be noted that those skilled in the art can practical application neatly
The specific value of 4th preset value is set, as long as can judge that outdoor unit heat exchanger is by the critical point that the 4th preset value determines
It is no to need to continue defrosting.Certainly, in practical applications, it can also judge that outdoor unit changes by the coil temperature of indoor unit
Whether hot device needs to continue to defrost, or in such a way that the coil temperature of the coil temperature of outdoor unit and indoor unit combines come
Judge whether outdoor unit heat exchanger needs to continue defrosting, etc., this tool for whether needing to continue defrosting to outdoor unit heat exchanger
The adjustment of body judgment mode and change without departing from the principle and scope of the present invention, should all be limited to protection scope of the present invention it
It is interior.
Preferably, defrosting control method further include: obtain the coil temperature of outdoor unit of the air conditioner and the fortune of air conditioner
The row time, if the coil temperature of outdoor unit reaches the first preset time less than the runing time of the 5th preset value and air conditioner,
Air conditioner is then set to be forced into refrigeration defrosting mode.I.e. after air conditioner long-play, outdoor unit heat exchanger is carried out primary
Thoroughly " big defrosting " is remained with the defrosting before eliminating, and is avoided defrosting residual accumulation excessive and is influenced the heating of air conditioner and imitate
Fruit.Wherein, those skilled in the art can set the first preset time by way of experiment, can also be by way of experience
The first preset time is set, as long as air conditioner can be made to be forced into refrigeration defrosting by the separation that the first preset time determines
Mode.It should be noted that those skilled in the art can flexibly set the specific of the 5th preset value in practical application
Numerical value, as long as can judge whether outdoor unit heat exchanger needs defrosting by the critical point that the 5th preset value determines.
Preferably, after " make air conditioner be forced into refrigeration defrosting mode " the step of, defrosting control method include: after
The continuous coil temperature for obtaining outdoor unit, if the coil temperature of outdoor unit is greater than the 6th preset value and continues the second preset time,
Air conditioner is then set to exit refrigeration defrosting mode.I.e. when the coil temperature of outdoor unit be greater than the 6th preset value and continue second it is default when
Between, illustrate that, by defrosting residual eliminating before, " big defrosting " work is completed.Wherein, those skilled in the art can pass through
The mode of experiment sets the second preset time, and the second preset time can also be set by way of experience, as long as passing through second
The separation that preset time determines can judge whether defrosting residual is completely removed.It should be noted that this field skill
Art personnel can flexibly set the specific value of the 6th preset value in practical application, as long as being faced by what the 6th preset value determined
Boundary's point can judge whether outdoor unit heat exchanger needs to continue defrosting.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of defrosting control method for air conditioner, which is characterized in that the defrosting control method includes:
In air conditioner heat-production operation, judges whether to meet defrosting condition and obtain outdoor environment temperature;
According to the judging result of the defrosting condition and the outdoor environment temperature, the air conditioner is selectively made to enter hot water
Defrosting mode or refrigeration defrosting mode.
2. defrosting control method according to claim 1, which is characterized in that " according to the judging result of the defrosting condition
With the outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or freeze defrosting mode " step
Suddenly include:
If meeting the defrosting condition and the outdoor environment temperature being greater than the first preset value, the air conditioner is made to enter heat
Water defrosting mode.
3. defrosting control method according to claim 2, which is characterized in that " according to the judging result of the defrosting condition
With the outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or freeze defrosting mode " step
Suddenly further include:
If meeting the defrosting condition and the outdoor environment temperature being less than or equal to first preset value, make described
Air conditioner enters refrigeration defrosting mode.
4. defrosting control method according to claim 2, which is characterized in that " according to the judging result of the defrosting condition
With the outdoor environment temperature, selectively make the air conditioner enter hot water defrosting's mode or freeze defrosting mode " step
Suddenly further include:
If being unsatisfactory for the defrosting condition, the air conditioner is not made to enter hot water defrosting's mode or refrigeration defrosting mode.
5. defrosting control method according to claim 2, which is characterized in that first preset value is 0 degree Celsius.
6. defrosting control method according to claim 1, which is characterized in that the defrosting condition is the room of the air conditioner
The coil temperature of outer machine is less than the second preset value.
7. defrosting control method according to claim 1, which is characterized in that the defrosting control method further include:
During the air conditioner executes hot water defrosting's mode, the coil temperature of the outdoor unit of the air conditioner is obtained;
If the coil temperature of the outdoor unit is greater than third preset value, the air conditioner is made to exit hot water defrosting's mode.
8. defrosting control method according to claim 1, which is characterized in that the defrosting control method further include:
During the air conditioner executes refrigeration defrosting mode, the coil temperature of the outdoor unit of the air conditioner is obtained;
If the coil temperature of the outdoor unit is greater than the 4th preset value, the air conditioner is made to exit refrigeration defrosting mode.
9. defrosting control method according to any one of claim 1 to 8, which is characterized in that the defrosting control method
Further include:
Obtain the coil temperature of the outdoor unit of the air conditioner and the runing time of the air conditioner;
It is preset if the coil temperature of the outdoor unit reaches first less than the runing time of the 5th preset value and the air conditioner
Time then makes the air conditioner be forced into refrigeration defrosting mode.
10. defrosting control method according to claim 9, which is characterized in that " air conditioner is made to be forced into refrigeration
After the step of defrosting mode ", the defrosting control method includes:
Continue to obtain the coil temperature of the outdoor unit;
If the coil temperature of the outdoor unit is greater than the 6th preset value and continues the second preset time, move back the air conditioner
Freeze defrosting mode out.
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CN111397097A (en) * | 2020-04-03 | 2020-07-10 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner and air conditioner |
CN111994253A (en) * | 2020-08-27 | 2020-11-27 | 广船国际有限公司 | Air conditioner ventilation system |
CN113465125A (en) * | 2021-06-17 | 2021-10-01 | 青岛海尔空调电子有限公司 | Defrosting control method of air conditioner, computer readable storage medium and control device |
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CN111397097A (en) * | 2020-04-03 | 2020-07-10 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner and air conditioner |
CN111397097B (en) * | 2020-04-03 | 2022-12-27 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner and air conditioner |
CN111994253A (en) * | 2020-08-27 | 2020-11-27 | 广船国际有限公司 | Air conditioner ventilation system |
CN111994253B (en) * | 2020-08-27 | 2022-07-01 | 广船国际有限公司 | Air conditioner ventilation system |
CN113465125A (en) * | 2021-06-17 | 2021-10-01 | 青岛海尔空调电子有限公司 | Defrosting control method of air conditioner, computer readable storage medium and control device |
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