CN106679117A - Air conditioner defrosting control method and device - Google Patents
Air conditioner defrosting control method and device Download PDFInfo
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- CN106679117A CN106679117A CN201710054496.4A CN201710054496A CN106679117A CN 106679117 A CN106679117 A CN 106679117A CN 201710054496 A CN201710054496 A CN 201710054496A CN 106679117 A CN106679117 A CN 106679117A
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- Prior art keywords
- air
- conditioner
- temperature
- compressor
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The invention discloses an air conditioner defrosting control method which comprises the following steps: the temperature of an indoor coil pipe is acquired; the indoor environment temperature is acquired; the continuous running time of a compressor is acquired; under the heating condition, when a difference between the temperature of the indoor coil pipe and the indoor environment temperature is smaller than or equal to a first temperature set value, the continuous running time of the compressor is larger than or equal to a running time set value of the compressor, and the temperature of the indoor coil pipe is smaller than or equal to a second temperature set value, an air conditioner is controlled to enter a defrosting mode. The air conditioner defrosting control method can more accurately judge whether the air conditioner frosts or not and controls the air conditioner to enter the defrosting mode when the air conditioner frosts only, so that the problem that the air conditioner is not defrosted when being frosted or is defrosted without frosts can be solved.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to air-conditioner defrosting control method and device.
Background technology
When heating, when outdoor environment temperature is below the freezing point, the water vapour in air will for heat pump type air conditioning system
Condense in heat exchanger surface, change over time can form frost layer in heat exchanger surface, and frosting directly increases heat exchanger
Heat transfer resistance between surface and moving air so that reduced by the rate of air circulation of heat exchanger, heat exchange efficiency is reduced, cause be
System heat exchange amount declines, and the heating condition of system deteriorates, so that taking steps to defrosting.
The general method using timing defrost of air-conditioner defrosting at present, the method is mainly according to air conditioner heat-production run time
Timing enters defrosting mode, and this defrosting control method can not judge whether off-premises station occurs frosting, be unable in room
Outer machine occurs to timely enter defrosting mode during frosting, and the problem for having frost not change can be caused to occur, and does not occur in off-premises station
Frosting, but the heating operation time when meeting timing demands air-conditioner can also enter defrosting mode, the problem for causing frostless defrost go out
It is existing.Therefore the defrosting control method of prior art can cause to have frost not change or the problem of frostless defrost occurs, and affect the system of air-conditioning
Thermal effect.
The content of the invention
Embodiments provide a kind of air-conditioner defrosting control method and device, it is intended to which solution has frost not change or frostless
The problem of defrost.In order to have a basic understanding to some aspects for the embodiment for disclosing, simple summary is shown below is.
The summarized section is not extensive overview, nor to determine key/critical component or describe the protection model of these embodiments
Enclose.Its sole purpose is that some concepts are presented with simple form, in this, as the preamble of following detailed description.
A kind of first aspect according to embodiments of the present invention, there is provided air-conditioner defrosting control method, during air-conditioning heating, should
Air-conditioner defrosting control method includes：Obtain indoor coil pipe；Obtain indoor environment temperature；When acquisition compressor continuously runs
Between；When indoor coil pipe continuously runs with the difference of indoor environment temperature less than or equal to the first desired temperature, compressor
When time is less than or equal to second temperature setting value more than or equal to compressor operating time setting value and indoor coil pipe,
Control air-conditioner enters defrosting mode.
Second aspect according to embodiments of the present invention, there is provided a kind of air-conditioner defrosting control device, including indoor coil temperature
Degree sensor, indoor environment temperature sensor, timer and processor, when air-conditioner operation is heated, indoor coil pipe sensing
Device is used to obtain indoor coil pipe；Indoor environment temperature sensor is used to obtain indoor environment temperature；Timer is used to obtain
The continuous operation time of compressor；Processor is used for the difference of coil temperature and indoor environment temperature indoors less than or equal to the
One desired temperature, compressor continuous operation time are more than or equal to compressor operating time setting value and indoor coil pipe
During less than or equal to second temperature setting value, control air-conditioner enters defrosting mode.
Technical scheme provided in an embodiment of the present invention can include following beneficial effect：
In the present invention, when operation of air conditioner is heated, the continuous operation time of compressor is obtained, when the continuous fortune of compressor
When turning the time more than or equal to compressor operating time setting value, it was demonstrated that compressor operating time is longer, generates a large amount of high temperature
High-pressure gaseous refrigerant, indoor coil pipe should be higher.Indoor coil pipe and indoor environment temperature are obtained, when indoor coil temperature
When difference between degree and indoor environment temperature is less than or equal to the first desired temperature, illustrate indoor coil pipe with indoor ring
Border temperature is close to, and illustrates that indoor coil pipe does not have because indoor environment temperature is too low large losses heat, now indoor
Coil temperature still is below second temperature setting value, illustrates that air-conditioner heat transfer rate declines, and off-premises station surface occurs frosting, the present invention
In only simultaneously meet indoor coil pipe with the difference of indoor environment temperature less than or equal to the first desired temperature, indoor disk
When pipe temperature is less than or equal to second temperature setting value, just controls air-conditioner and enter defrosting mode, it is to avoid due to indoor environment temperature
Spend the low indoor coil pipe for causing relatively low, but heat transfer rate does not decline, and control air-conditioner enters during outdoor generation frosting
Enter the heating effect decline that defrosting mode is caused.Therefore the present invention can more accurately judge air-conditioner whether frosting, and
Air-conditioner is just controlled when air-conditioner occurs frosting enter defrosting mode, therefore, it is possible to solve white do not change or frostless defrost is asked
Topic.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The present invention can be limited.
Description of the drawings
Accompanying drawing herein is merged in description and constitutes the part of this specification, shows the enforcement for meeting the present invention
Example, and be used to explain the principle of the present invention together with description.
Fig. 1 is a kind of schematic flow sheet of the air-conditioner defrosting control method according to an exemplary embodiment；
Fig. 2 is the stream that defrosting mode is exited in a kind of air-conditioner defrosting control method according to an exemplary embodiment
Journey schematic diagram；
Fig. 3 is the stream that defrosting mode is exited in a kind of air-conditioner defrosting control method according to an exemplary embodiment
Journey schematic diagram；
Fig. 4 is a kind of structural representation of air-conditioner defrosting control device according to an exemplary embodiment.
Description of reference numerals：1st, indoor coil pipe sensor；2nd, indoor environment temperature sensor；3rd, processor；4th, count
When device；5th, outdoor coil temperature sensor.
Specific embodiment
The following description and drawings fully illustrate specific embodiments of the present invention, to enable those skilled in the art to
Put into practice them.Embodiment only represents possible change.Unless explicitly requested, otherwise single components and functionality is optional, and
And the order for operating can change.The part of some embodiments and feature can be included in or replace other embodiments
Part and feature.The scope of embodiment of the present invention includes the gamut of claims, and the institute of claims
There is obtainable equivalent.Herein, each embodiment individually or generally can be represented with term " invention " that this is only
It is merely for convenience, and if in fact disclosing the invention more than, be not meant to automatically limit the scope of the application
For any single invention or inventive concept.Herein, such as first and second or the like relational terms are used only for one
Entity or operation make a distinction with another entity or operation, and do not require or imply presence between these entities or operation
Any actual relation or order.And, term " including ", "comprising" or its any other variant are intended to non-exclusive
Property include so that a series of process, method or equipment including key elements not only include those key elements, but also including
Other key elements being not expressly set out.Herein each embodiment is described by the way of progressive, and each embodiment is stressed
Be all difference with other embodiment, between each embodiment identical similar portion mutually referring to.For enforcement
It is corresponding with part disclosed in embodiment due to it for example disclosed structure, product etc., so fairly simple, the phase of description
Part is closed referring to method part illustration.
The embodiment of the present invention discloses a kind of air-conditioner defrosting control method, it is intended to which solving air-conditioner has frost not change or frostlessization
The problem of frost, in order to solve the problem, as shown in figure 1, in the case of air conditioner heat-production, air-conditioner defrosting control method includes：
Step S101：Obtain indoor coil pipe Tp1.
Step S102：Obtain indoor environment temperature Tp3.
Step S103：Obtain compressor continuous operation time t1.
Step S104：When the difference of Tp1 and Tp3 is less than or equal to the first desired temperature, t1 is more than or equal to compressor
Duration of runs setting value, when Tp1 is less than or equal to second temperature setting value, control air-conditioner enters defrosting mode.
In the present invention, when operation of air conditioner is heated, t1 is obtained, when t1 is more than or equal to compressor operating time setting value
When, it was demonstrated that compressor operating time is longer, generates a large amount of high pressure gaseous coolant, and Tp1 should be higher.Obtain Tp1 and
Tp3, when the difference between Tp1 and Tp3 is less than or equal to the first desired temperature, illustrates that Tp1 and Tp3 is close to, and illustrates Tp1 simultaneously
Without the large losses heat because Tp3 is too low, when Tp1 is less than or equal to second temperature setting value, illustrate that air-conditioner exchanges heat
Rate declines, and off-premises station surface occurs frosting, and the difference for only meeting Tp1 and Tp3 in the present invention simultaneously is warm less than or equal to first
Degree setting value, when Tp1 is less than or equal to second temperature setting value, just controls air-conditioner and enters defrosting mode, it is to avoid due to Tp3 mistakes
The low Tp1 for causing is relatively low, but heat transfer rate does not decline, and control air-conditioner is caused into defrosting mode during outdoor generation frosting
Heating effect decline.The present invention can more accurately judge air-conditioner whether frosting, and when air-conditioner occurs frosting
Just control air-conditioner and enter defrosting mode, therefore, it is possible to solve the problems, such as that frost is not changed or frostless defrost.Wherein compressor operation
Time setting value can carry out value between 20~60 minutes, and here is not limited, such as when the operation ring of air conditioner heat-production
When border temperature is higher, indoor heating demand is relatively low, thus compressor operating time setting value can set it is shorter, such as 20 points
Clock, 22 minutes etc., when the operating ambient temperature of air conditioner heat-production is relatively low, indoor heating demand is higher, therefore compressor operation
It is longer that time setting value can set, such as 50 minutes, 55 minutes etc., and specific setting value is not constituted to the present invention's
Limit, those skilled in the art can be set according to the actual requirements in specific implementation process.First desired temperature
Less than second temperature setting value, the first desired temperature can carry out value between 1 DEG C~20 DEG C, and here is not limited,
The first desired temperature can be set according to ambient temperature in specific implementation process, when ambient temperature is higher, Tp3 compared with
Difference between height, therefore Tp1 and Tp3 is relatively low, and the first temperature value is set within the scope of relatively low, contrary, when environment temperature
When spending relatively low, Tp3 is relatively low, there is larger difference between Tp1 and Tp3, and the first temperature value is set within the scope of higher.The
Two desired temperatures can carry out value between 25 DEG C~60 DEG C, and here is not limited, can basis in specific implementation process
Ambient temperature sets to second temperature setting value, and when ambient temperature is higher, second temperature setting value is set in higher
Contrary within temperature range, when the temperature of the surroundings is low, second temperature setting value is set within relatively low temperature range.
In any of the above-described embodiment, optionally, as shown in Fig. 2 after step s 104, also include：
Step S201：Obtain the outer coil temperature Tp2 of air-conditioner.
Step S202：When Tp2 is more than or equal to three desired temperatures, control air-conditioner exits defrosting mode.
In the present embodiment, when Tp2 is more than or equal to three desired temperatures, outdoor coil pipe used temperature higher than one compared with
High temperature value, outdoor coil temperature is higher, and the frost for judging off-premises station surface is eliminated, therefore control air-conditioning exits defrosting mould
Formula, makes air-conditioner exit defrosting mode as early as possible when frostization is complete, improves the heating effect of air-conditioning.Wherein the 3rd desired temperature
Can take between 1 DEG C to 20 DEG C, here is not limited, those skilled in the art can be set according to practical situation, example
When such as when air conditioner heat-production runs, outdoor environment temperature is higher, air-conditioner outdoor unit surface is difficult to frosting, then the 3rd is warm
Degree setting value can set it is relatively low, such as it is 1 DEG C, 5 DEG C etc., contrary, when air conditioner heat-production runs outdoor environment temperature compared with
When low, air-conditioner outdoor unit surface is susceptible to frosting, and in order to avoid air-conditioner frequently enters defrosting mode air-conditioner is affected
Heating effect, it is higher that the 3rd desired temperature can be arranged, such as 18 DEG C, 20 DEG C etc., and specific numerical value is not constituted to this
The restriction of invention.
Optionally, in the above-described embodiments, the implementation for obtaining Tp2 has various, as a kind of optional embodiment,
Tp2 is obtained every the first setting time；When all Tp2 obtained in the second setting time are all higher than or equal to the setting of the 3rd temperature
During value, control air-conditioner exits the defrosting mode, wherein the second setting time is more than or equal to the first setting time.
In the present embodiment, when all Tp2 obtained in the second setting time are all higher than or equal to the 3rd desired temperature
When, illustrate that current Tp2 is relatively stable, and it is all higher, the solidifying frost that can more accurately judge off-premises station surface is eliminated, control
Air-conditioner processed exits defrosting mode, improves the heating effect of air-conditioning.Wherein the second setting time can be carried out between 1~120s
Value, here is not limited, the first setting time can between 0.001~2s value, here do not limit, as long as meeting the
Two setting times are more than or equal to the first setting time.
Optionally, as shown in figure 3, after step s 104, also include：
Step S301：Obtain the continuous operation time t5 of compressor under defrosting mode.
Step S302：When t5 is more than or equal to compressor defrosting operating time setting value, control air-conditioner exits described
Defrosting mode.
In the above-described embodiments, when t5 is more than or equal to compressor defrosting operating time setting value, illustrate that air-conditioner enters
After entering defrosting mode, the continuous operation time of compressor is longer, and the frost of air-conditioner outdoor unit is eliminated, therefore control air-conditioner is moved back
Go out defrosting mode, be favorably improved the heating effect of air-conditioning.Wherein compressor defrosting operating time setting value can be at 5~30 points
Value is carried out between clock, here is not limited, such as when operation environment of air conditioner temperature is relatively low, air-conditioner outdoor unit frosting can
Can be more serious, therefore the continuous operating time of compressor should be longer under defrosting mode, compressor defrosting operating time setting value
What is can set is longer, such as 25 minutes, 30 minutes etc., contrary, when operation of air conditioner ambient temperature is higher, outside air conditioner chamber
Machine is not susceptible to the continuous operating time of compressor under frosting, therefore defrosting mode should be shorter, the compressor defrosting operating time
It is shorter that setting value can set, such as 5 minutes, 10 minutes etc., specific numerical value and the not enough restriction of the present invention in pairs, ability
The technical staff in domain can be set in specific implementation process according to practical situation.
Optionally, in above-described embodiment, air-conditioner is outdoor by the high pressure gaseous coolant flow direction produced in compressor
Heat exchanger is defrosted, and now cross valve needs to close, it is to avoid low temperature refrigerant flows to indoor heat exchanger affects air-conditioner to heat effect
Really, coolant stops that during flowing cross valve could be closed, and thus closes off and need before cross valve close compressor, opens compressor and enters
Also need to close outdoor fan before row defrosting, it is to avoid the outdoor Cryogenic air of outdoor fan operating forced air convection order affects empty
The defrosting effect of tune, thus air-conditioner enter defrosting mode after, also include：Close compressor；Close after close compressor outdoor
Blower fan and closing cross valve, after outdoor fan and cross valve are turned off, open compressor.Now cross valve is closed, and coolant is only
Off-premises station is flowed to, compressor is opened, and the high pressure gaseous coolant in compressor flows to outdoor heat exchanger so as to make off-premises station table
Face temperature is raised and reaches defrost purpose, and now outdoor fan is closed, it is to avoid affect defrost effect because outdoor temperature is too low.Wherein
In order to prevent rush of current, need to be compressed the closing of machine, cross valve and outdoor fan and compressor in different time
Open, and need to open compressor every the 4th setting time after cross valve and outdoor fan is closed, the 4th setting time can be with
Selected between 3~20S, here is not limited, as long as rush of current can be avoided.By closing in different time
Compressor, cross valve outdoor fan and unlatching compressor, additionally it is possible to prevent rush of current, improve the air-conditioner life-span.
Optionally, in any of the above-described embodiment, the Cumulative Elapsed Time t2 of compressor after air-conditioner brings into operation is obtained
With the Cumulative Elapsed Time t8 under air-conditioner defrosting mode, control t8 and account for the ratio of total time less than or equal to 20%, so as to abundant
Ensure the heating effect of air-conditioning.Wherein, total time is that t3 adds t8.Wherein, t2, t8 can be carried out between 30~60 minutes
Value, does not limit herein, wherein specific numerical value and the not enough restriction of the present invention in pairs.
Optionally, in any of the above-described embodiment, after air-conditioner enters defrosting control model, control air-conditioner is in defrosting
Mode operation t7 times backed off after random defrosts, it is ensured that defrosting effect, it is to avoid because defrosting not exclusively causes to frequently enter defrosting mode
Affect the heating effect of air-conditioner.
Optionally, in any of the above-described embodiment, when air-conditioner breaks down shutdown into after defrosting mode, compressor
It is out of service, defrosting mode is exited, prevent air conditioner fault operation or compressor from accident occurring when opening suddenly.
Second embodiment of the invention discloses a kind of air-conditioner defrosting control device, as shown in figure 4, including：Indoor coil temperature
Degree sensor 1, indoor environment temperature sensor 2, timer 4 and processor 3, indoor coil pipe sensor 1 is used to obtain room
Inner coil pipe temperature Tp1；Indoor environment temperature sensor 2 is used to obtain indoor environment temperature Tp3；Timer 4 is used to obtain compression
The continuous operation time t1 of machine；In the case of air conditioner heat-production, processor 3 is used for when the difference between Tp1 and Tp3 is less than or equal to
First desired temperature, t1 are less than or equal to second temperature setting value more than or equal to compressor operating time setting value and Tp1
When, control air-conditioner enters defrosting mode.
In the present invention, when air-conditioner operation is heated, timer 4 obtains the continuous operation time t1 of compressor, works as pressure
When contracting machine t1 is more than or equal to compressor operating time setting value, it was demonstrated that compressor operating time is longer, generates a large amount of high temperature
High-pressure gaseous refrigerant, indoor coil pipe Tp1 should be higher.When the difference between Tp1 and Tp3 sets less than or equal to the first temperature
Regularly, illustrate that indoor coil pipe Tp1 is close to indoor environment temperature Tp3, illustrate Tp1 not because Tp3 is too low and shown
Amount of heat, now Tp1 should be higher, when Tp1 is less than or equal to second temperature setting value, illustrates that Tp1 is relatively low, and air-conditioner is changed
Heating rate declines, and off-premises station surface occurs frosting, and the difference for only meeting Tp1 and Tp3 in the present invention simultaneously is less than or equal to first
Desired temperature, when Tp1 is less than or equal to second temperature setting value, just controls air-conditioner and enters defrosting mode, it is to avoid due to Tp3
The too low Tp1 for causing is relatively low, but heat transfer rate does not decline, and control air-conditioner is made into defrosting mode during outdoor generation frosting
Into heating effect decline.Therefore the present invention can more accurately judge air-conditioner whether frosting, and occur in air-conditioner
Air-conditioner is just controlled during frosting and enters defrosting mode, therefore, it is possible to solve the problems, such as that frost is not changed or frostless defrost.Wherein compress
The setting of machine duration of runs setting value, the first desired temperature and second temperature setting value is as described above, here is omitted.
Optionally, the air-conditioner defrosting control device in any of the above-described embodiment, as shown in figure 4, also including outdoor disk
Pipe temperature sensor 5, for obtaining outdoor coil temperature Tp2, processor 3 is additionally operable to when Tp2 sets more than or equal to the 3rd temperature
During definite value, control air-conditioner exits defrosting mode.
In the present embodiment, when Tp2 is more than or equal to three desired temperatures, outdoor coil pipe used temperature higher than one compared with
High temperature value, Tp2 is higher, and the frost for judging off-premises station surface is eliminated, therefore control air-conditioning exits defrosting mode, makes air-conditioning
Device exits as early as possible defrosting mode when frostization is complete, improves the heating effect of air-conditioning.Wherein, the setting of the 3rd desired temperature is such as
Upper described, here is omitted.
Optionally, in the above-described embodiments, outdoor coil temperature sensor 5 obtains Tp2 every the first setting time；Process
Device 3 is additionally operable to when the Tp2 of the acquisition of outdoor coil pipe used temperature sensor 5 in the second setting time is all higher than or sets equal to the 3rd temperature
During value, control air-conditioner exits defrosting mode, wherein the second setting time is more than or equal to the first setting time.
In the present embodiment, when all Tp2 obtained in the second setting time are all higher than or equal to the 3rd desired temperature
When, illustrate that current Tp2 is relatively stable, and it is all higher, the solidifying frost that can more accurately judge off-premises station surface is eliminated, control
Air-conditioner processed exits defrosting mode, improves the heating effect of air-conditioning.
Optionally, the implementation of defrosting mode is exited as another kind of air-conditioner defrosting control device.Timer 4 is also used
In the continuous operation time t5 for obtaining compressor under defrosting mode；Processor 3 is additionally operable to when t5 defrosts more than or equal to compressor
During duration of runs setting value, control air-conditioner exits defrosting mode.
In the above-described embodiments, when t5 is more than or equal to compressor defrosting operating time setting value, illustrate that air-conditioner enters
After entering defrosting mode, the continuous operation time of compressor is longer, and the frost of air-conditioner outdoor unit is eliminated, therefore control air-conditioner is moved back
Go out defrosting mode, be favorably improved the heating effect of air-conditioning.Wherein, the setting of compressor defrosting operating time setting value as above institute
State, here is omitted.
Optionally, in the air-conditioner defrosting control device in above-described embodiment, processor 3 is additionally operable to be removed when air-conditioner is entered
After white pattern, close compressor closes outdoor fan and cross valve after close compressor, processor 3 is additionally operable to close chamber's exogenous wind
Compressor is opened after machine and cross valve.Now cross valve is closed, and coolant only flows to off-premises station, and compressor is opened, in compressor
High pressure gaseous coolant flows to outdoor heat exchanger and reaches defrost purpose so as to make off-premises station surface temperature raise, now outdoor wind
Office closes, it is to avoid affect defrost effect because outdoor temperature is too low.By in different time close compressor, cross valve, outdoor
Blower fan and unlatching compressor, additionally it is possible to prevent rush of current, improve the air-conditioner life-span.
Optionally, the air-conditioner defrosting control device in any of the above-described embodiment, timer 4 is additionally operable to acquisition air-conditioning and opens
Cumulative Elapsed Time t8 after beginning to run under the Cumulative Elapsed Time t2 and air-conditioner defrosting mode of compressor, processor 3 is also used
The ratio of total time is accounted for less than or equal to 20%, in control t8 so as to fully ensure that the heating effect of air-conditioning.Wherein, total time it is pressure
Contracting machine t3 adds t8.The setting of t2 and t8 is as described above, here is omitted.
Optionally, the air-conditioner defrosting control device in any of the above-described embodiment, into after defrosting mode, processor 3
It is additionally operable to control air-conditioner and runs the defrosting of t7 times backed off after random in defrost mode, it is ensured that defrosting effect, it is to avoid due to defrosting not
The heating effect for frequently entering defrosting mode impact air-conditioner is caused completely.Wherein the setting of t7 is as described above, no longer go to live in the household of one's in-laws on getting married herein
State.
Optionally, the air-conditioner defrosting control device in any of the above-described embodiment, when air-conditioner breaks down shutdown,
Compressor is out of service, and processor 3 is additionally operable to control air-conditioner and exits defrosting mode, prevents air-conditioning failure operation or compressor prominent
There is accident when so opening, it is also possible to avoid directly running defrosting mode during air-conditioner unlatching next time.
It should be appreciated that specific setting value and the not enough restriction of the present invention in pairs in the present invention, the present invention is not
Flow process and the structure for being described above and being shown in the drawings is confined to, and can without departing from the scope carry out various repairing
Change and change.The scope of the present invention is only limited by appended claim.
Claims (8)
1. a kind of air-conditioner defrosting control method, it is characterised in that when the operation of air conditioner is heated, methods described includes：
Obtain indoor coil pipe；
Obtain indoor environment temperature；
Obtain the compressor continuous operation time of air-conditioner；
When the indoor coil pipe is less than or equal to the first desired temperature, the sky with the difference of the indoor environment temperature
The compressor continuous operation time for adjusting device is less than more than or equal to compressor operating time setting value and the indoor coil pipe
Or during equal to second temperature setting value, control the air-conditioner and enter defrosting mode.
2. the method for claim 1, it is characterised in that also include：
Obtain the air-conditioner outdoor coil temperature；
When the outdoor coil temperature is more than or equal to three desired temperatures, controls the air-conditioner and exit defrosting mode.
3. method as claimed in claim 2, it is characterised in that the acquisition air-conditioner outdoor coil temperature includes：
The air-conditioner outdoor coil temperature is obtained every the first setting time；
When all described outdoor coil temperature obtained in the second setting time is all higher than or during equal to three desired temperatures, control
Make the air-conditioner and exit the defrosting mode, wherein second setting time is more than or equal to first setting time.
4. the method for claim 1, it is characterised in that the air-conditioner is entered after defrosting mode, is also included：
Close the compressor；
Close outdoor fan and cross valve；And
Open the compressor.
5. a kind of air-conditioner defrosts control device, it is characterised in that include：Indoor coil pipe sensor, indoor environment temperature
Sensor, timer and processor；When the air-conditioner operation is heated,
The indoor coil temperature sensor is used to obtain indoor coil pipe；
The indoor environment temperature sensor is used to obtain indoor environment temperature；
The timer is used for the continuous operation time of the compressor for obtaining the air-conditioner；
The processor is used for warm less than or equal to first in the indoor coil pipe and the difference of the indoor environment temperature
The compressor continuous operation time that degree setting value, the timer are obtained sets more than or equal to compressor operating time
When value and the indoor coil pipe are less than or equal to second temperature setting value, control the air-conditioner and enter defrosting mode.
6. device as claimed in claim 5, it is characterised in that also include：
Outdoor coil temperature sensor, for obtaining outdoor coil temperature；
The processor is additionally operable to, when the outdoor coil temperature that the outdoor coil temperature sensor is obtained is more than or equal to
During three desired temperatures, control the air-conditioner and exit the defrosting mode.
7. device as claimed in claim 6, it is characterised in that
The outdoor coil temperature sensor obtains the outdoor coil temperature of the air-conditioner every the first setting time；
The processor be additionally operable to when the outdoor coil temperature sensor in the second setting time obtain it is described outdoor coil pipe used
Temperature is all higher than or during equal to three desired temperatures, controls the air-conditioner and exits the defrosting mode, wherein described second
Setting time is more than or equal to the first setting value time.
8. device as claimed in claim 5, it is characterised in that also include：The processor enters for controlling the air-conditioner
After entering defrosting mode, the compressor is closed, close the outdoor fan and the cross valve, and open the compressor.
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| CN201710054496.4A CN106679117A (en) | 2017-01-24 | 2017-01-24 | Air conditioner defrosting control method and device |
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| CN201710054496.4A CN106679117A (en) | 2017-01-24 | 2017-01-24 | Air conditioner defrosting control method and device |
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| CN106679117A true CN106679117A (en) | 2017-05-17 |
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| CN201710054496.4A Pending CN106679117A (en) | 2017-01-24 | 2017-01-24 | Air conditioner defrosting control method and device |
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| CN107449105B (en) * | 2017-07-05 | 2019-07-02 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioner defrosting |
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| CN110094833A (en) * | 2019-05-16 | 2019-08-06 | 滁州星联电子有限公司 | A kind of booting Defrost method of convertible frequency air-conditioner |
| CN110469965B (en) * | 2019-07-24 | 2022-07-19 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
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