CN108413563A - Indoor unit anti-freeze control method for air conditioner - Google Patents
Indoor unit anti-freeze control method for air conditioner Download PDFInfo
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- CN108413563A CN108413563A CN201810151945.1A CN201810151945A CN108413563A CN 108413563 A CN108413563 A CN 108413563A CN 201810151945 A CN201810151945 A CN 201810151945A CN 108413563 A CN108413563 A CN 108413563A
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- indoor unit
- air conditioner
- freeze
- wind turbine
- electric current
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/112—Fan speed control of evaporator fans
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of indoor unit anti-freeze control method for air conditioner.Present invention seek to address that existing air conditioner only judges the situation of freezing of indoor unit by inner coil pipe temperature, it is easy to the problem of influenced by other factors and lead to erroneous judgement.The present invention indoor unit anti-freeze control method include：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 electric current of the indoor unit, judge whether that the air conditioner is made to get in machine anti-freeze pattern.Since when the coil temperature of indoor unit is less than indoor unit coil freeze temperature, indoor unit may generate freezeout；At this point, air conditioner also needs to further judge the situation of freezing of indoor unit by the wind turbine electric current of indoor unit, to farthest ensure that indoor unit can rapidly and accurately enter anti-freeze pattern.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of indoor unit anti-freeze controlling party for air conditioner
Method.
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.It follows that air conditioner only relies on the inner coil pipe of temperature sensor measurement
Temperature is difficult effectively to be judged the bulk freezing situation of indoor unit；Therefore, air conditioner also just can not to indoor unit in time into
Row deicing is handled, and the generation of such case can seriously affect the heat exchange efficiency of air conditioner, is declined so as to cause user experience.
Correspondingly, this field needs a kind of new to solve above-mentioned ask for the indoor unit anti-freeze control method of air conditioner
Topic.
Invention content
In order to solve the above problem in the prior art, in order to solve existing air conditioner only by inner coil pipe temperature to room
The situation of freezing of interior machine is judged, it is easy to which the problem of influenced by other irrelevant factors and lead to erroneous judgement, the present invention provides
A kind of indoor unit anti-freeze control method for air conditioner, the indoor unit anti-freeze control method include：In the sky
When adjusting device refrigerating operaton, the wind turbine electric current and coil temperature of the indoor unit are obtained；It is less than in the coil temperature of the indoor unit
In the case of indoor unit coil freeze temperature, judge whether to make the air conditioner into entering the room according to the wind turbine electric current of the indoor unit
Interior machine 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, judge whether to make institute according to the wind turbine electric current of the indoor unit
State air conditioner and get in machine anti-freeze pattern " the step of specifically include：By the wind turbine electric current and normalized current of the indoor unit
The ratio of value is compared with the first preset value；According to the wind turbine electric current of the indoor unit and the ratio of the standard current value with
The comparison result of first preset value judges whether that the air conditioner is made to get in machine 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 comparison result of the wind turbine electric current of machine and the ratio of the standard current value and first preset value judges whether to make the sky
Adjust device get in machine anti-freeze pattern " the step of specifically include：If wind turbine electric current and the standard electric of the indoor unit
The ratio of flow valuve is less than first preset value, then the air conditioner is made to get in machine 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 comparison result of the wind turbine electric current of machine and the ratio of the standard current value and first preset value judges whether to make the sky
Adjust device get in machine anti-freeze pattern " the step of specifically include：If wind turbine electric current and the standard electric of the indoor unit
The ratio of flow valuve is greater than or equal to first preset value, then the air conditioner is not made to get in machine anti-freeze pattern.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, the standard current value
Current value of the wind turbine under different rotating speeds when being in non-icing condition for the indoor unit.
Above-mentioned in the optimal technical scheme of the indoor unit anti-freeze control method of air conditioner, first preset value
Arbitrary value between being 0.85 to 0.95.
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, judges 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, " in the air conditioner
After getting in machine anti-freeze pattern, according to the wind turbine electric current of the indoor unit, judge whether that the air conditioner is made to exit room
The step of interior machine anti-freeze pattern ", specifically includes：By the wind turbine electric current of the indoor unit and the ratio of the standard current value with
Second preset value is compared；It is pre- according to the wind turbine electric current of the indoor unit and the ratio of the standard current value and described second
If the comparison result of value, judges 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 comparison result of the wind turbine electric current of machine and the ratio of the standard current value and second preset value judges whether to make the sky
Adjust device exit indoor unit anti-freeze pattern " the step of specifically include：If wind turbine electric current and the standard electric of the indoor unit
The ratio of flow valuve is greater than or equal to second preset value, then 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, second preset value
Arbitrary value between being 0.95 to 1.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, of the invention is used for air-conditioning
The indoor unit anti-freeze control method of device includes：In the air conditioner refrigerating operaton, the wind turbine electric current of the indoor unit is obtained
And coil temperature；In the case where the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, according to the interior
The wind turbine electric current of machine judges whether that the air conditioner is made to get in machine anti-freeze pattern.When the coil temperature of the indoor unit is small
When indoor unit coil freeze temperature, then illustrate that freezeout may occur in the indoor unit；At this point, the indoor unit is anti-
Freezing control method needs what the wind turbine electric current by the indoor unit further determined that the indoor unit to freeze situation.
Further, due to the wind turbine electric current of the indoor unit can with the change for freezing degree of the indoor unit and
Corresponding variation is generated, and the change of the wind turbine electric current is not easily susceptible to the interference of irrelevant factor；Therefore, when the indoor unit
Coil temperature be less than indoor unit coil freeze temperature when, the indoor unit anti-freeze control method can also be according to the indoor unit
Wind turbine electric current freeze situation judge the indoor unit so that the air conditioner can be more accurately to the room
The situation of freezing of interior machine is judged, to effectively avoid jelly of the existing air conditioner only by inner coil pipe temperature to the indoor unit
When knot situation is judged, it is easy to the problem of influenced by other irrelevant factors and lead to erroneous judgement, and then farthest protect
Anti-freeze pattern can rapidly and accurately be entered by demonstrate,proving the indoor unit so that the heat exchange efficiency of the air conditioner is effectively protected
Card.
Further, in the preferred technical solution of the present invention, when the coil temperature of the indoor unit is less than indoor unit disk
When pipe solidification point, the indoor unit anti-freeze control method is by the wind turbine electric current of the indoor unit and the ratio of standard current value
It is compared with the first preset value；If the wind turbine electric current of the indoor unit and the ratio of the standard current value are less than described the
One preset value then makes the air conditioner get in machine anti-freeze pattern；If the wind turbine electric current and the mark of the indoor unit
The ratio of quasi- current value is greater than or equal to first preset value, then the air conditioner is not made to get in machine anti-freeze pattern.
That is, the present invention is by presetting the ratio of the wind turbine electric current of the indoor unit and the standard current value and described first
Value is compared to further judge the opportunity that the air conditioner gets in machine anti-freeze pattern, due to the wind of the indoor unit
What electromechanical stream can accurately reflect entire indoor unit freezes situation, in the prior art only relies on local circumstance without existing and sentences
Easily there are problems that misjudgment phenomenon when disconnected bulk freezing degree, so that the air conditioner judges that the indoor unit freezes journey
The ability of degree obtains the raising of high degree.
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,
The indoor unit anti-freeze control method is by the ratio and the second preset value of the wind turbine electric current of the indoor unit and standard current value
It is compared；If it is default that the wind turbine electric current of the indoor unit and the ratio of the standard current value are greater than or equal to described second
Value, then illustrate that the situation of freezing of the indoor unit has been improved；At this point, the air conditioner is made to exit indoor unit anti-freeze mould
Formula.That is, the present invention is by by the ratio of the wind turbine electric current of the indoor unit and the standard current value and described second
Preset value is compared to judge the opportunity that the air conditioner exits indoor unit anti-freeze pattern, due to the wind turbine of the indoor unit
What electric current can accurately reflect entire indoor unit freezes situation, only relies on partial freezing's situation in the prior art without existing and comes
Judge easily there are problems that misjudgment phenomenon when bulk freezing degree.Therefore, the wind turbine electric current that the present invention passes through the indoor unit
The accuracy rate of judgement can be effectively improved to judge that the indoor unit exits opportunity of anti-freeze pattern, it is described to be effectively ensured
When exiting indoor unit anti-freeze pattern, the situation of freezing of the indoor unit is improved air conditioner comprehensively；Meanwhile it is described
Air conditioner can also after deicing fast quick-recovery normal refrigerating mode, and then be effectively ensured the air conditioner refrigeration effect
Fruit improves user experience.
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.
Only the situation of freezing of indoor unit is carried out by inner coil pipe temperature based on the existing air conditioner proposed in background technology
Judge, it is easy to the problem of causing to judge by accident.The present invention provides a kind of indoor unit anti-freeze control method for air conditioner, purports
Only the opportunity for entering anti-freeze pattern is judged by single factors solving existing air conditioner, it is easy to because other because
Element influence and cause erroneous judgement the problem of.
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
Electric current judges whether that air conditioner is made to get in machine anti-freeze pattern.
Further, in the air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of the indoor unit are obtained；
In the case that the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, according to the wind turbine electric current of the indoor unit,
Judge whether that the air conditioner is made to get in machine anti-freeze pattern.Since the coil temperature when the indoor unit is less than indoor unit
When coil freeze temperature, freezeout may occur in the indoor unit.Again since the wind turbine electric current of the indoor unit can
Corresponding variation is generated with the change for freezing degree of the indoor unit, and the change of the wind turbine electric current is not easily susceptible to
The interference of irrelevant factor.Therefore, when the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, the indoor unit
Anti-freeze control method by the wind turbine electric current of the indoor unit can more accurately to the indoor unit freeze situation into
Row is further effectively to be judged, effectively to avoid existing air conditioner from only freezing feelings to the indoor unit by inner coil pipe temperature
When condition is judged, it is easy to the problem of influenced by other irrelevant factors and lead to erroneous judgement, to farthest ensure institute
Accurate judgement can be carried out to the opportunity for entering anti-freeze pattern by stating indoor unit, and then the heat exchange effect of the indoor unit is effectively ensured
Rate.
The wind turbine size of current of those skilled in the art, the indoor unit can directly reflect entire indoor unit
Freeze degree；It is to determine due to the load of the wind turbine under certain rotating speed, corresponding wind turbine electric current is also true
Fixed.In other words, when the rotating speed of the wind turbine determines, if the windage of the wind turbine increases, i.e., when the load becomes large, wind turbine
Electric current also inherently becomes smaller；Meanwhile if the wind turbine electric current becomes smaller, illustrating that the load becomes large for the wind turbine, i.e., windage increases
Add, that is to say, that the indoor unit has generated freezeout.It is understood that the indoor unit to freeze situation tighter
Weight, the wind turbine electric current is with regard to smaller.Therefore, the present invention can not only effectively obtain the indoor unit by the wind turbine electric current
Bulk freezing situation, while can also dramatically improve the accuracy that the air conditioner judges.
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
Shown, the indoor unit anti-freeze control method specifically includes the following steps：
S101：In air conditioner refrigerating operaton, the wind turbine electric current and coil temperature of indoor unit are obtained；
S102：Judge whether the coil temperature of indoor unit is less than indoor unit coil freeze temperature；If so, thening follow the steps
S103；If it is not, then executing step S104；
S103：Whether the ratio of the wind turbine electric current and standard current value that judge indoor unit is less than the first preset value；If so,
Then follow the steps S105；If it is not, then executing step S104；
S104：Air conditioner is set to maintain present mode；
S105：Air conditioner is set to get in machine anti-freeze pattern；
S106：Whether the ratio of the wind turbine electric current and standard current value that judge indoor unit is greater than or equal to the second preset value；
If so, thening follow the steps S107；If it is not, then executing step S106 again；
S107：Air conditioner is set to exit indoor unit anti-freeze pattern.
Further, the wind turbine electric current and coil temperature that the indoor unit is obtained in step S101, so as to the interior
Machine anti-freeze control method can judge that the indoor unit enters jointly according to the wind turbine electric current and coil temperature of the indoor unit
The opportunity of anti-freeze pattern, and according to the wind turbine electric current of the indoor unit judge the indoor unit exit anti-freeze pattern when
Machine.Then in step s 102, judge whether the coil temperature of the indoor unit is less than indoor unit coil freeze temperature, with toilet
State indoor unit anti-freeze control method can first according to the coil temperature of the indoor unit to the indoor unit freeze situation into
Row is preliminary to be judged.If the coil temperature of the indoor unit is greater than or equal to indoor unit coil freeze temperature, illustrate the room
Interior machine does not generate freezeout, executes step S104, even if the air conditioner maintains present mode of operation；If the interior
When the coil temperature of machine is less than indoor unit coil freeze temperature, illustrate that freezeout may occur in the indoor unit；At this point,
Step S103 is executed, i.e., the described indoor unit anti-freeze control method needs to further determine that by the wind turbine electric current of the indoor unit
The indoor unit freezes situation.
Specifically, in step s 103, in advance by the wind turbine electric current of the indoor unit and the ratio and first of standard current value
If value is compared；So as to default with described first according to the ratio of the wind turbine electric current of the indoor unit and the standard current value
The comparison result of value further determines whether that the air conditioner is made to get in machine anti-freeze pattern.It should be noted that, although
In the preferred embodiment, the indoor unit anti-freeze control method enters including the indoor unit and exits anti-freeze mould simultaneously
The control method of formula, still, technical staff obviously can also voluntarily select a portion controlling party according to actual use demand
Method is used.
Further, in step s 103, if the ratio of the wind turbine electric current and the standard current value of the indoor unit
Less than first preset value, then illustrate that the situation of freezing of the indoor unit has exceeded the indoor unit and freezes degree really
Allowable range；At this point, step S105 is executed, even if the air conditioner gets in machine anti-freeze pattern.If the indoor unit
Wind turbine electric current and the standard current value ratio be greater than or equal to first preset value, then illustrate the disk of the indoor unit
Tube temperature degree not reflecting the situation of freezing of the indoor unit accurately, the indoor unit freeze situation in fact there are no beyond
The indoor unit freezes the allowable range of degree；At this point, step S104 is executed, even if the air conditioner maintains current operation mould
Formula.The present invention judges that it is antifreeze that the air conditioner gets in machine by the wind turbine electric current and coil temperature of the indoor unit simultaneously
The opportunity of knot pattern so that the air conditioner judges that the indoor unit freezes the ability of degree and obtains the raising of high degree.It needs
It is noted that technical staff can freeze the allowable range of degree according to indoor unit described in actual use demand sets itself.
In addition it is also necessary to which explanation, those skilled in the art can voluntarily set according to the actual conditions of different air conditioners
The fixed indoor unit enters the anti-freeze measure taken when anti-freeze pattern.In the preferred embodiment, the air conditioner passes through
The frequency of compressor is reduced to 0.8 times of current frequency, so that the indoor unit freezes situation and can quickly obtain
Improve；Certainly, technical staff can also set anti-freeze pattern according to the actual conditions of different air conditioners.
It will be appreciated to those of skill in the art that preferably, first preset value be 0.85 to 0.95 between appoint
Meaning value；Certainly, this is not restrictive, and the first preset value can be flexibly arranged in those skilled in the art in practical applications
Concrete numerical value, as long as can judge whether the wind turbine electric current of the indoor unit excessively declines by the separation that the first preset value determines
Subtract.Meanwhile the standard current value described in this preferred embodiment can be measured before air conditioner manufacture；
I.e. when the air conditioner is in non-icing condition, the air conditioner is made to be run with standard condition, in the air conditioner with standard
During operating mode is run, standard current value of the wind turbine of the indoor unit under different rotating speeds is measured.It should be noted that this
Invention is not limited in any way the method for bioassay standard current value.
Further, in step s 106, by the ratio and second of the wind turbine electric current of the indoor unit and standard current value
Preset value is compared；According to the wind turbine electric current of the indoor unit and the ratio of the standard current value and second preset value
Comparison result, judge whether that the air conditioner is made to exit indoor unit anti-freeze pattern.If the wind turbine electric current of the indoor unit
It is greater than or equal to second preset value with the ratio of the standard current value, illustrates that the situation of freezing of the indoor unit has obtained
To being effectively improved；At this point, step S107 is executed, even if the air conditioner exits indoor unit anti-freeze pattern.If the interior
The wind turbine electric current of machine and the ratio of the standard current value are less than second preset value, and illustrate the indoor unit freezes situation
Or than more serious；At this point, executing step S106 again, i.e., judged again, to freeze situation in the indoor unit
Row exits anti-freeze pattern again when obtaining improving.The present invention is judged by the wind turbine electric current and standard current value of the indoor unit
The air conditioner exits the opportunity of anti-freeze pattern, so that the air conditioner fast quick-recovery can normally freeze after deicing
Pattern, and then the refrigeration effect of the air conditioner is effectively ensured, improve user experience.
It will be appreciated to those of skill in the art that preferably, second preset value be 0.95 to 1 between it is arbitrary
Value；Certainly, this is not restrictive, and the tool of the second preset value can be flexibly arranged in those skilled in the art in practical applications
Body numerical value, as long as whether to freeze situation by what the separation that second preset value determines can judge the indoor unit
It is effectively improved.
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
Electric current judges whether that the air conditioner is made to get in machine 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, it is according to the judgement of the wind turbine electric current of the indoor unit
It is no that the air conditioner is made to get in machine anti-freeze pattern " the step of specifically include：
The ratio of the wind turbine electric current of the indoor unit and standard current value is compared with the first preset value；
According to the comparison result of the wind turbine electric current of the indoor unit and the ratio of the standard current value and first preset value,
Judge whether that the air conditioner is made to get in machine anti-freeze pattern.
3. the indoor unit anti-freeze control method according to claim 2 for air conditioner, which is characterized in that " according to institute
The comparison result for stating the wind turbine electric current of indoor unit and the ratio and first preset value of the standard current value, judges whether to make
The air conditioner gets in machine anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit and the ratio of the standard current value are less than first preset value, make described
Air conditioner gets in machine anti-freeze pattern.
4. the indoor unit anti-freeze control method according to claim 2 for air conditioner, which is characterized in that " according to institute
The comparison result for stating the wind turbine electric current of indoor unit and the ratio and first preset value of the standard current value, judges whether to make
The air conditioner gets in machine anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit and the ratio of the standard current value are greater than or equal to first preset value,
The air conditioner is not set to get in 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 standard
Current value is that the indoor unit is in current value of the wind turbine under different rotating speeds when non-icing condition.
6. the indoor unit anti-freeze control method according to claim 2 for air conditioner, which is characterized in that described first
Preset value is the arbitrary value between 0.85 to 0.95.
7. the indoor unit anti-freeze control method for air conditioner according to any one of claim 2 to 6, 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, judge whether to make
The air conditioner exits indoor unit anti-freeze pattern.
8. the indoor unit anti-freeze control method according to claim 7 for air conditioner, which is characterized in that " described
After air conditioner gets in machine anti-freeze pattern, according to the wind turbine electric current of the indoor unit, judge whether to make the air conditioner
Exit indoor unit anti-freeze pattern " the step of specifically include：
The ratio of the wind turbine electric current of the indoor unit and the standard current value is compared with the second preset value；
According to the comparison result of the wind turbine electric current of the indoor unit and the ratio of the standard current value and second preset value,
Judge 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 comparison result for stating the wind turbine electric current of indoor unit and the ratio and second preset value of the standard current value, judges whether to make
The air conditioner exits indoor unit anti-freeze pattern " the step of specifically include：
If the wind turbine electric current of the indoor unit and the ratio of the standard current value are greater than or equal to second preset value,
The air conditioner is set to exit indoor unit anti-freeze pattern.
10. the indoor unit anti-freeze control method according to claim 8 for air conditioner, which is characterized in that described
Two preset values are the arbitrary value between 0.95 to 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810151945.1A CN108413563A (en) | 2018-02-14 | 2018-02-14 | Indoor unit anti-freeze control method for air conditioner |
| PCT/CN2019/074846 WO2019158047A1 (en) | 2018-02-14 | 2019-02-12 | Anti-freezing control method for indoor unit of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810151945.1A CN108413563A (en) | 2018-02-14 | 2018-02-14 | Indoor unit anti-freeze control method for air conditioner |
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| WO (1) | WO2019158047A1 (en) |
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