CN108413564A - Indoor unit anti-freeze control method and air conditioner for air conditioner - Google Patents
Indoor unit anti-freeze control method and air conditioner for air conditioner Download PDFInfo
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- CN108413564A CN108413564A CN201810151956.XA CN201810151956A CN108413564A CN 108413564 A CN108413564 A CN 108413564A CN 201810151956 A CN201810151956 A CN 201810151956A CN 108413564 A CN108413564 A CN 108413564A
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- indoor unit
- air conditioner
- freeze
- control method
- wind turbine
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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
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of indoor unit anti-freeze control method and air conditioner for air conditioner.Present invention seek to address that existing air conditioner is difficult to carry out accurate judgement to the situation of freezing of indoor unit according only to inner coil pipe temperature, and the problem of anti-freeze pattern corresponding there are no the different set for freezing situation according to indoor unit.The present invention indoor unit anti-freeze control method include：In air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of indoor unit are obtained；In the case that the coil temperature of machine is less than indoor unit coil freeze temperature indoors, according to the wind turbine size of current of indoor unit, air conditioner is selectively made to enter corresponding indoor unit anti-freeze pattern；So that air conditioner can freeze situation according to indoor unit selects different anti-freeze patterns, to on the basis of quick deicing, it can also effectively avoid the anti-freeze pattern correspondence of existing air conditioner operation bad, be easy to cause energy waste and the ineffective problem of deicing.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of indoor unit anti-freeze control method for air conditioner
And air conditioner.
Background technology
With the continuous improvement of people's living standards, people also proposed increasingly higher demands to living environment.In order to
Comfortable environment temperature, air conditioner is maintained to have become essential a kind of equipment in people's life.Normally, air conditioner packet
Indoor unit, outdoor unit and the circulation loop for connecting indoor unit and outdoor unit are included, the heat transferring medium in air conditioner is by following
Loop back path constantly exchanges heat between outdoor unit and indoor unit, to achieve the effect that change room temperature.When with air conditioner refrigerating operaton
For, the coil pipe of indoor unit is in the lower state of temperature always；At this point, if when indoor environment has higher levels of humidity, it is indoor
The coil pipe of machine is just easy to generate freezeout, and the generation of this freezeout can seriously affect the heat exchange efficiency of indoor unit, make
The heat transfer effect for obtaining air conditioner constantly weakens, and then influences the comfort level of indoor environment.Therefore, in air conditioner refrigerating operaton,
Air conditioner is necessary to ensure that the coil pipe of indoor unit does not generate freezeout.
In order to which the freezeout to indoor unit coil pipe is monitored, existing air conditioner usually all can be indoors on the coil pipe of machine
Mounting temperature sensor so that air conditioner can judge indoor unit coil pipe by the coil temperature of indoor unit freezes situation,
So that when freezeout occurs in indoor unit coil pipe, air conditioner can carry out deicing processing in time.But this monitoring method is deposited
The tapping condition for being fixed against heat exchanger is needed in the accuracy of a very big disadvantage, i.e., this monitoring method；Specifically, working as
When the tapping condition of indoor set heat exchanger is bad, if air conditioner only relies on and is provided with a branch of temperature sensor and is difficult to
The entire indoor unit coil pipe of accurate judgement freezes situation.Further, when air conditioner has been found that interior by temperature sensor
When machine generates freezeout, the difference for also not freezing degree according to indoor unit executes corresponding anti-freeze pattern.Therefore, existing
Air conditioner not only cannot carry out accurate judgement to the situation of freezing of indoor unit, and there are no the differences for freezing situation according to indoor unit to set
Fixed corresponding anti-freeze pattern is easy to due to indoor unit generates freezeout so as to cause the heat exchange efficiency of air conditioner by tight
Ghost image is rung.
Correspondingly, this field needs a kind of new indoor unit anti-freeze control method and air conditioner for air conditioner to solve
The certainly above problem.
Invention content
In order to solve the above problem in the prior art, it is difficult to according only to inner coil pipe temperature in order to solve existing air conditioner
Accurate judgement is carried out to the situation of freezing of indoor unit, and the different set for freezing situation according to indoor unit not yet is prevented accordingly
The problem of freezing mode, the present invention provides a kind of indoor unit anti-freeze control method for air conditioner, the indoor unit is anti-
Freezing control method includes：In the air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of the indoor unit are obtained；
It is big according to the wind turbine electric current of the indoor unit in the case that the coil temperature of the indoor unit is less than indoor unit coil freeze temperature
It is small, so that the air conditioner is entered corresponding indoor unit anti-freeze pattern.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, " in the indoor unit
Coil temperature be less than indoor unit coil freeze temperature in the case of, according to the wind turbine size of current of the indoor unit, selectivity
Ground make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：If the wind turbine of the indoor unit
Electric current is less than the first pre-set current value and is more than the second pre-set current value, then the air conditioner is made to enter the first indoor unit anti-freeze
Pattern, wherein first pre-set current value is more than second pre-set current value.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, " in the indoor unit
Coil temperature be less than indoor unit coil freeze temperature in the case of, according to the wind turbine size of current of the indoor unit, selectivity
Ground make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：If the wind turbine of the indoor unit
Electric current is less than or equal to the second pre-set current value and is more than third pre-set current value, then the air conditioner is made to enter the second indoor unit
Anti-freeze pattern, wherein second pre-set current value is more than the third pre-set current value.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, " in the indoor unit
Coil temperature be less than indoor unit coil freeze temperature in the case of, according to the wind turbine size of current of the indoor unit, selectivity
Ground make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：If the wind turbine of the indoor unit
Electric current is less than or equal to third pre-set current value, then the air conditioner is made to enter third indoor unit anti-freeze pattern.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, the indoor unit to be antifreeze
Tying control method further includes：When the air conditioner refrigerating operaton and the indoor unit are in non-icing condition, described the is measured
One pre-set current value.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, the indoor unit to be antifreeze
Tying control method further includes：When the air conditioner refrigerating operaton and the indoor unit are in slight icing condition, described in measurement
Second pre-set current value.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, the indoor unit to be antifreeze
Tying control method further includes：When the air conditioner refrigerating operaton and the indoor unit are in severe icing condition, described in measurement
Third pre-set current value.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, the indoor unit to be antifreeze
Tying control method further includes：After the air conditioner gets in machine anti-freeze pattern, according to the wind turbine of indoor unit electricity
Stream and the first pre-set current value, judge whether that the air conditioner is made to exit indoor unit anti-freeze pattern.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, " according to the interior
The wind turbine electric current of machine and first pre-set current value judge whether that the air conditioner is made to exit indoor unit anti-freeze pattern "
Step specifically includes：If the wind turbine electric current of the indoor unit is greater than or equal to first pre-set current value, make the sky
Device is adjusted to exit indoor unit anti-freeze pattern.
The present invention also provides a kind of air conditioner, the air conditioner includes controller, and the controller is configured to hold
The indoor unit anti-freeze control method for air conditioner described in row any of the above-described optimal technical scheme.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, freeze in the air conditioner
When operation, the wind turbine electric current and coil temperature of the indoor unit are obtained；It is less than indoor unit disk in the coil temperature of the indoor unit
In the case of pipe solidification point, according to the wind turbine size of current of the indoor unit, selectively enter the air conditioner corresponding
Indoor unit anti-freeze pattern.The air conditioner first by the coil temperature of the indoor unit and indoor unit coil freeze temperature into
Row compares, tentatively to judge the indoor unit with the presence or absence of the risk for generating freezeout.When the coil pipe temperature of the indoor unit
When degree is less than indoor unit coil freeze temperature, then illustrate that there are lockout risks for the indoor unit；At this point, the air conditioner passes through institute
What the wind turbine electric current for stating indoor unit further determined that the indoor unit freezes situation.
Specifically, when the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, when the indoor unit
Wind turbine current attenuation degree it is relatively low when, illustrate that the indoor unit at this time is in the state slightly freezed, the air conditioner preferably makes
The indoor unit enters the first indoor unit anti-freeze pattern；When the wind turbine current attenuation degree of the indoor unit is slightly higher, explanation
The indoor unit has been in the state that moderate is freezed at this time, and the air conditioner preferably makes the indoor unit anti-into the second indoor unit
Freezing mode；When the wind turbine current attenuation degree of the indoor unit is very high, illustrate that the indoor unit has been in serious at this time
The state freezed, the air conditioner preferably make the indoor unit enter third indoor unit anti-freeze pattern.The present invention passes through this control
Mode processed enables the air conditioner to freeze degree according to the indoor unit and select optimal anti-freeze pattern, and existing
Air conditioner is merely able to be compared according to the seek unity of action technical solution of identical anti-freeze pattern of Rule of judgment in technology, and the present invention makes
The anti-freeze operation of the air conditioner becomes more intelligent and flexible, and will not be due to the anti-freeze mould of air conditioner operation
Formula correspondence is bad and the situation that the energy excessively wastes and deicing is ineffective occurs.
Further, in the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, by institute
Corresponding variation can be generated with the change for freezing degree of the indoor unit by stating the wind turbine electric current of indoor unit, and described
The change of wind turbine electric current is not easily susceptible to the interference of irrelevant factor.In addition, the anti-freeze control method of the present invention passes through the interior
The wind turbine electric current of machine judges that the indoor unit enters the opportunity of anti-freeze pattern so that the air conditioner can be more accurately
The situation of freezing of the indoor unit is effectively judged, effectively to avoid existing air conditioner only by inner coil pipe temperature to institute
State when freezing situation and being judged of indoor unit, it is easy to the problem of influenced by other irrelevant factors and lead to erroneous judgement, to
Farthest ensure that the indoor unit can carry out accurate judgement to the opportunity for entering anti-freeze pattern, and then institute is effectively ensured
State the heat exchange efficiency of indoor unit.
Further, on the basis of the above-mentioned control method for entering anti-freeze pattern about the indoor unit, this hair
It is bright to additionally provide a kind of control method exiting anti-freeze pattern about the indoor unit.In a preferred embodiment of the invention,
After the air conditioner gets in machine anti-freeze pattern, the indoor unit anti-freeze control method is by the wind of the indoor unit
Electromechanics stream and the first pre-set current value are compared；If it is default that the wind turbine electric current of the indoor unit is greater than or equal to described first
Current value then illustrates that the situation of freezing of the indoor unit has been improved；At this point, the indoor unit is made to exit anti-freeze mould
Formula.That is, the present invention is by the way that the wind turbine electric current of the indoor unit and first pre-set current value to be compared to sentence
The indoor unit that breaks exits the opportunity of anti-freeze pattern, so that the indoor unit is effectively ensured when exiting anti-freeze pattern,
Freeze situation is improved comprehensively；Meanwhile the air conditioner fast quick-recovery can also normally freeze mould after deicing
Formula, and then the refrigeration effect of the air conditioner is effectively ensured, improve user experience.
In addition, the present invention further provides a kind of air conditioner, the air conditioner packet based on the above technical solution
Controller is included, the controller is configured to execute the anti-freeze control method in above-mentioned optimal technical scheme, thus also has
The technique effect of standby above-mentioned anti-freeze control method, and compared to existing air conditioner, air conditioner of the invention can make sky
Device is adjusted to freeze degree according to indoor unit and select optimal anti-freeze pattern, so that the anti-freeze of the air conditioner is operated becomes more
Add intelligence and flexibly, and the anti-freeze pattern correspondence that will not be run due to the air conditioner is bad and the energy occur excessively unrestrained
Take and situation that deicing is ineffective.
Description of the drawings
Fig. 1 is the key step flow chart of the indoor unit anti-freeze control method of the present invention；
Fig. 2 is the specific steps flow chart of the indoor unit anti-freeze control method of the present invention.
Specific implementation mode
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 the technical principle of the present invention, it is not intended that limit the scope of the invention.For example, although
In the application according to particular order describe the present invention method each step, but these be not sequentially it is restrictive,
Under the premise of without departing from the basic principle of the present invention, those skilled in the art can execute the step in a different order
Suddenly.
It is difficult to according only to inner coil pipe temperature freeze situation to indoor unit based on the existing air conditioner proposed in background technology
Accurate judgement is carried out, and the problem of anti-freeze pattern corresponding there are no the different set for freezing situation according to indoor unit.For
The solution above problem in the prior art, the present invention provides a kind of indoor unit anti-freeze control method for air conditioner.
Referring initially to Fig. 1, which is the key step flow chart of the indoor unit anti-freeze control method of the present invention.The present invention
Air conditioner include indoor unit, as shown in Figure 1, the indoor unit anti-freeze control method mainly includes the following steps：
S1：In air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of indoor unit are obtained；
S2：In the case that the coil temperature of machine is less than indoor unit coil freeze temperature indoors, according to the wind turbine of indoor unit
Size of current selectively makes air conditioner enter corresponding indoor unit anti-freeze pattern.
It will be appreciated to those of skill in the art that the coil temperature in the indoor unit is less than indoor unit coil freeze temperature
In the case of degree, what the wind turbine size of current of the indoor unit can directly reflect the air conditioner freezes degree, due to
The load of the wind turbine is to determine under certain rotating speed, therefore, what corresponding wind turbine electric current was also to determine.In other words, when
When the rotating speed of the wind turbine determines, if the windage of the wind turbine is bigger, the indoor unit to freeze degree more serious, it is described
The wind turbine electric current of indoor unit is also smaller；Meanwhile if the wind turbine electric current is smaller, illustrating that the windage of the wind turbine is bigger,
That is the indoor unit to freeze degree more serious.Therefore, freeze less than indoor unit coil pipe in the coil temperature of the indoor unit
In the case of junction temperature, the present invention can carry out the degree of freezing of the indoor unit by the wind turbine size of current
Effectively judge.
It should be noted that in practical applications, the mode of experiment can be first passed through before air conditioner manufacture by different jellies
The wind turbine electric current of indoor unit under knot degree is measured, i.e., makes the air conditioner refrigerating operaton under non-frozen state, is measured
First pre-set current value；Make the air conditioner refrigerating operaton under slight frozen state, measures the second pre-set current value；In severe
Make the air conditioner refrigerating operaton under frozen state, measures third pre-set current value.Certainly, those skilled in the art can basis
Practical situation flexibly sets the extent and scope that freezes of the air conditioner, such as can be carried out according to the area that freezes of inner coil pipe
It distinguishes, the air conditioner is set when the inner coil pipe freezeout does not occur as non-frozen state, is freezed in the inner coil pipe
The air conditioner is set when area is up to 30% as moderate to freeze, and the air-conditioning is set when the inner coil pipe freezes area up to 80%
Device freezes for severe.On the basis of such setting means, the corresponding wind turbine electric current measured under each situation is subjected to section and is drawn
Point, i.e., if the wind turbine electric current of the indoor unit is greater than or equal to the first pre-set current value, illustrate that the indoor unit is in not
Icing condition, the indoor unit are not necessarily to enter anti-freeze pattern；If the wind turbine electric current of the indoor unit is less than the first default electricity
Flow valuve and when more than the second pre-set current value, then illustrate that the indoor unit is in the state slightly freezed；If the indoor unit
Wind turbine electric current be less than the second pre-set current value and more than third pre-set current value when, illustrate that the indoor unit freezes in moderate
State；If the wind turbine electric current of the indoor unit is less than third pre-set current value, illustrate that the indoor unit is in severe
The state freezed；Wherein, the first pre-set current value is more than the second pre-set current value, and the second pre-set current value is more than the default electricity of third
Flow valuve.Those skilled in the art can flexibly set in practical applications the first pre-set current value, the second pre-set current value and
The concrete numerical value of third pre-set current value, as long as passing through the first pre-set current value, the second pre-set current value and third predetermined current
What the separation of value determination can distinguish indoor unit freezes degree, so that the indoor unit can select optimal anti-freeze pattern
.
Referring next to Fig. 2, which is the specific steps flow chart of the indoor unit anti-freeze control method of the present invention.Such as Fig. 2
It is shown, " in the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, according to the wind of the indoor unit
Machine size of current, selectively make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of include：If described
The wind turbine electric current of indoor unit is less than the first pre-set current value and is more than the second pre-set current value, then the air conditioner is made to enter first
Indoor unit anti-freeze pattern.Since the indoor unit at this time only exists in the state slightly freezed, the air conditioner can pass through by
What the aperture of electric expansion valve increased the mode of 50 steps quickly to improve the indoor unit freezes situation；Certainly, technical staff
It can be set according to actual conditions pair the first indoor unit anti-freeze pattern of different air conditioners.
Preferably, as shown in Fig. 2, " the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature
Under, according to the wind turbine size of current of the indoor unit, the air conditioner is selectively made to enter corresponding indoor unit anti-freeze mould
The step of formula " includes：If the wind turbine electric current of the indoor unit is less than or equal to second pre-set current value and is more than third
Pre-set current value then makes the air conditioner enter the second indoor unit anti-freeze pattern.Since the indoor unit is in moderate at this time
The state freezed, the air conditioner need that the aperture of electric expansion valve is increased 50 steps and is reduced to the frequency of compressor to work as
What 0.8 times of mode of preceding frequency could quickly improve the indoor unit freezes situation；Certainly, technical staff can also be according to not
Actual conditions pair the second indoor unit anti-freeze pattern with air conditioner is set.
Preferably, as shown in Fig. 2, " the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature
Under, according to the wind turbine size of current of the indoor unit, the air conditioner is selectively made to enter corresponding indoor unit anti-freeze mould
The step of formula " includes：If the wind turbine electric current of the indoor unit is less than or equal to the third pre-set current value, make the sky
Device is adjusted to enter third indoor unit anti-freeze pattern.Since the indoor unit has been in the state that severe is freezed, the sky at this time
Adjust device that will protect indoor unit by way of autostop；Certainly, technical staff can also be according to the reality of different air conditioners
Situation sets third indoor unit anti-freeze pattern.
It should be noted that the present invention also provides a kind of control methods exiting anti-freeze pattern, in the excellent of this method
It selects in embodiment, after the air conditioner gets in machine anti-freeze pattern, the air conditioner is by the wind turbine of the indoor unit
Electric current and the first pre-set current value are compared；If the wind turbine electric current of the indoor unit is greater than or equal to the first predetermined current
Value, then illustrate that the situation of freezing of the indoor unit has been improved；At this point, the indoor unit is made to exit anti-freeze pattern.
Finally, it should be noted that above-described embodiment is the preferred embodiments of the invention, it is not intended as to the present invention
The limitation of protection domain.Those skilled in the art can be properly added or delete as needed one when actually using the present invention
Part steps, or exchange the sequence between different step.This basic principle changed not departing from the present invention, belongs to this
The protection domain of invention.
So far, it has been combined attached drawing and describes the preferred embodiments of the invention, still, those skilled in the art are easy reason
Solution, protection scope of the present invention are expressly not limited to these specific implementation modes.Before without departing from the principle of the present invention
It puts, those skilled in the art can make the relevant technologies feature equivalent change or replacement, after these changes or replacement
Technical solution fall within protection scope of the present invention.
Claims (10)
1. a kind of indoor unit anti-freeze control method for air conditioner, which is characterized in that the indoor unit anti-freeze controlling party
Method includes：
In the air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of the indoor unit are obtained；
In the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, according to the wind turbine of the indoor unit
Size of current selectively makes the air conditioner enter corresponding indoor unit anti-freeze pattern.
2. the indoor unit anti-freeze control method according to claim 1 for air conditioner, which is characterized in that " described
In the case that the coil temperature of indoor unit is less than indoor unit coil freeze temperature, according to the wind turbine size of current of the indoor unit,
Selectively make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit is less than the first pre-set current value and is more than the second pre-set current value, make the sky
Device is adjusted to enter the first indoor unit anti-freeze pattern,
Wherein, first pre-set current value is more than second pre-set current value.
3. the indoor unit anti-freeze control method according to claim 1 for air conditioner, which is characterized in that " described
In the case that the coil temperature of indoor unit is less than indoor unit coil freeze temperature, according to the wind turbine size of current of the indoor unit,
Selectively make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit is less than or equal to the second pre-set current value and is more than third pre-set current value, make
The air conditioner enters the second indoor unit anti-freeze pattern,
Wherein, second pre-set current value is more than the third pre-set current value.
4. the indoor unit anti-freeze control method according to claim 1 for air conditioner, which is characterized in that " described
In the case that the coil temperature of indoor unit is less than indoor unit coil freeze temperature, according to the wind turbine size of current of the indoor unit,
Selectively make the air conditioner enter corresponding indoor unit anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit is less than or equal to third pre-set current value, the air conditioner is made to enter third room
Interior machine anti-freeze pattern.
5. the indoor unit anti-freeze control method according to claim 2 for air conditioner, which is characterized in that the interior
Machine anti-freeze control method further includes：
When the air conditioner refrigerating operaton and the indoor unit are in non-icing condition, first pre-set current value is measured.
6. the indoor unit anti-freeze control method according to claim 2 for air conditioner, which is characterized in that the interior
Machine anti-freeze control method further includes：
When the air conditioner refrigerating operaton and the indoor unit are in slight icing condition, second predetermined current is measured
Value.
7. the indoor unit anti-freeze control method according to claim 3 for air conditioner, which is characterized in that the interior
Machine anti-freeze control method further includes：
When the air conditioner refrigerating operaton and the indoor unit are in severe icing condition, the third predetermined current is measured
Value.
8. the indoor unit anti-freeze control method for air conditioner according to any one of claim 2 to 7, feature exist
In the indoor unit anti-freeze control method further includes：
After the air conditioner gets in machine anti-freeze pattern, according to the wind turbine electric current of the indoor unit and the first default electricity
Flow valuve judges whether that the air conditioner is made to exit indoor unit anti-freeze pattern.
9. the indoor unit anti-freeze control method according to claim 8 for air conditioner, which is characterized in that " according to institute
The wind turbine electric current of indoor unit and first pre-set current value are stated, judges whether that the air conditioner is made to exit indoor unit anti-freeze mould
The step of formula ", specifically includes：
If the wind turbine electric current of the indoor unit is greater than or equal to first pre-set current value, the air conditioner is made to exit room
Interior machine anti-freeze pattern.
10. a kind of air conditioner, the air conditioner includes controller, which is characterized in that the controller is configured to right of execution
Profit requires the indoor unit anti-freeze control method for air conditioner described in any one of 1 to 9.
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| CN201810151956.XA CN108413564B (en) | 2018-02-14 | 2018-02-14 | Anti-freezing control method for indoor unit of air conditioner and air conditioner |
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|---|---|---|---|
| CN201810151956.XA CN108413564B (en) | 2018-02-14 | 2018-02-14 | Anti-freezing control method for indoor unit of air conditioner and air conditioner |
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| CN108413564B CN108413564B (en) | 2020-11-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189177A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔空调器有限总公司 | Air conditioner and anti-freezing control method thereof |
| CN111692710A (en) * | 2020-06-24 | 2020-09-22 | 宁波奥克斯电气股份有限公司 | Control method for preventing freezing and defrosting and air conditioner |
| CN113154659A (en) * | 2021-05-08 | 2021-07-23 | 合肥美的暖通设备有限公司 | Evaporator state detection method and device, air conditioning equipment and storage medium |
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