CN110470015A - Control method and device, air-conditioning for air-conditioner defrosting - Google Patents
Control method and device, air-conditioning for air-conditioner defrosting Download PDFInfo
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- CN110470015A CN110470015A CN201910714255.7A CN201910714255A CN110470015A CN 110470015 A CN110470015 A CN 110470015A CN 201910714255 A CN201910714255 A CN 201910714255A CN 110470015 A CN110470015 A CN 110470015A
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- Prior art keywords
- air
- conditioning
- flow aperture
- temperature
- heat exchanger
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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
- F24F11/42—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
- F24F11/62—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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
Abstract
This application involves air-conditioner defrosting technical fields, disclose a kind of control method for air-conditioner defrosting.Control method includes: in the case where air-conditioning is defrosted, and control increases the flow aperture of the throttling set of air-conditioning；Obtain the refrigerant feed liquor temperature gap of outdoor heat exchanger and the predeterminated position temperature of outdoor heat exchanger；In the case where refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria, control stops increasing the flow aperture of throttling set.Judge that air-conditioning exits the opportunity of defrosting using the refrigerant feed liquor temperature gap and predeterminated position temperature these parametric synthesis of outdoor heat exchanger, so as to effectively improve the control precision for exiting defrosting to control air-conditioning；And the flow aperture by increasing throttling set changes refrigerant temperature and pressure in refrigerant circulation circuit etc., and the refrigerant for finally flowing into outdoor heat exchanger progress defrost is enable to reach preferable defrosting effect.A kind of control device and air-conditioning for air-conditioner defrosting is also disclosed in the application.
Description
Technical field
This application involves air-conditioner defrosting technical fields, for example, be related to a kind of control method and device for air-conditioner defrosting,
Air-conditioning.
Background technique
Currently, the mainstream model of air-conditioning is mostly the heat exchange function for having cooling and warming double mode, here, air-conditioning is cryogenically
Under area or the biggish weather conditions of wind and snow, user is usually to adjust air-conditioning to heating mode, indoor to be promoted using air-conditioning
The temperature of environment；In air conditioner in operation heating operations, the outdoor heat exchanger of outdoor unit is to play to absorb from outdoor environment
The effect of the evaporator of heat is influenced by the temperature and humidity of outdoor environment, and the more ice of condensation is easy on outdoor heat exchanger
Frost, and meeting is so that the heating capacity of air-conditioning can be lower and lower, therefore imitates to guarantee to heat after simultaneously frost knot arrives certain thickness
Fruit avoids frost condensation excessive, it is therefore necessary to defrost to outdoor heat exchanger.
Here, the mode to defrost to outdoor heat exchanger is mainly include the following types: first is that reverse cycle defrosting, air-conditioning carry out
When reverse cycle defrosting, the high temperature refrigerant of compressor discharge first flows through outdoor heat exchanger, to melt frost using refrigerant heat；Second is that
Increase electric heater unit on the refrigerant pipeline of air-conditioning, the refrigerant for flowing into outdoor heat exchanger is heated using electric heater unit, in turn
Melt the frost condensed on outdoor heat exchanger using refrigerant heat；Third is that adjusting the air supply rates such as compressor, electric expansion valve
Operating parameter, to change the temperature and pressure state of refrigerant in refrigerant pipeline, making it also can be played to outdoor heat exchanger defrosting
Effect.
During realizing the embodiment of the present disclosure, at least there are the following problems in the related technology for discovery:
Since the Defrost mode of above-mentioned several pairs of outdoor heat exchangers more or less all can be to the normal heating performance structure of air-conditioning
At influence, therefore air-conditioning will do it judgement before exiting defrosting, and then control whether air-conditioning exits defrosting according to judging result.
In the related technology, it removes generally by judging whether to exit to the mode compared with numerical value between outdoor environment temperature and frost point temperature
Frost.Since the solidifying white situation of outdoor heat exchanger can be influenced by many factors such as outdoor environment and self-operating state simultaneously,
Therefore the above-mentioned judgment mode for whether exiting defrosting mode is excessively rough, is easy to make air-conditioning exit defrosting mode in advance and cause to remove
Frost is not thorough, alternatively, after the completion of defrosting continuous service defrosting mode and influence the normal heating performance of air-conditioning.
Summary of the invention
In order to which some aspects of the embodiment to disclosure have basic understanding, simple summary is shown below.It is described general
Including is not extensive overview, nor to determine key/critical component or describe the protection scope of these embodiments, but is made
For the preamble of following detailed description.
The embodiment of the present disclosure provides a kind of control method and device for air-conditioner defrosting, air-conditioning, to solve related skill
The judgment mode that defrosting mode whether is exited in art is excessively rough, is easy to make air-conditioning exit defrosting mode in advance and cause defrosting not
Thoroughly, alternatively, after the completion of defrosting continuous service defrosting mode and the technical issues of influence air-conditioning normal heating performance.
In some embodiments, the control method for air-conditioner defrosting includes:
In the case where air-conditioning is defrosted, control increases the flow aperture of the throttling set of air-conditioning；
Obtain the refrigerant feed liquor temperature gap of outdoor heat exchanger and the predeterminated position temperature of outdoor heat exchanger；
In the case where refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria, control stops increasing
The flow aperture of throttling set.
In some embodiments, the control device for air-conditioner defrosting includes processor and is stored with program instruction
Memory, processor are configured as when executing program instructions, and execute the above-mentioned control method for air-conditioner defrosting.
In some embodiments, the air-conditioning includes:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
The above-mentioned control device for air-conditioner defrosting, is electrically connected with throttling set.
The control method and device for air-conditioner defrosting of embodiment of the present disclosure offer, air-conditioning, may be implemented following technology
Effect:
Air-conditioning judges that air-conditioning exits during Defrost operation, using refrigerant feed liquor temperature gap and predeterminated position temperature
The opportunity of defrosting avoids air-conditioning from exiting defrosting in advance so as to effectively improve the control precision for exiting defrosting to control air-conditioning
Mode and cause defrosting be not thorough, alternatively, after the completion of defrosting continuous service defrosting mode and influence air-conditioning normally heating property
Energy；And the flow aperture by increasing throttling set changes refrigerant temperature and pressure in refrigerant circulation circuit etc., makes finally to flow
The refrigerant for entering outdoor heat exchanger progress defrost can reach preferable defrosting effect, be heated with reducing frost condensation to air-conditioning itself
The adverse effect of performance.
Above general description and it is discussed below be only it is exemplary and explanatory, be not used in limitation the application.
Detailed description of the invention
One or more embodiments are illustrated by corresponding attached drawing, these exemplary illustrations and attached drawing
The restriction to embodiment is not constituted, the element with same reference numbers label is shown as similar element in attached drawing, and attached drawing is not
Composition limitation, and wherein:
Fig. 1 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides；
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides；
Fig. 3 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present disclosure and technology contents, with reference to the accompanying drawing to this public affairs
The realization for opening embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present disclosure.
In technical description below, for convenience of explanation for the sake of, disclosed embodiment is fully understood with providing by multiple details.
However, one or more embodiments still can be implemented in the case where without these details.It in other cases, is simplification
Attached drawing, well known construction and device can simplify displaying.
Fig. 1 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides.
A kind of control method for air-conditioner defrosting is provided in the embodiment of the present disclosure, as shown in Figure 1, including following step
It is rapid:
S101: in the case where air-conditioning is defrosted, control increases the flow aperture of the throttling set of air-conditioning.
In embodiment, when frosting problem occurs in the outdoor heat exchanger of air-conditioner outdoor unit, outdoor environment is mostly in temperature
Lower, the biggish bad working environments of humidity, user is usually that air-conditioning is set as heating mode operation at this time, to utilize air-conditioning to room
Interior environment carries out heating heating.Therefore the control method for air-conditioner defrosting that the embodiment of the present disclosure provides is in air-conditioning to heat
The control flow enabled when mode operation.
Optionally, judge by way of compared with numerical value between outdoor environment temperature and frost point temperature air-conditioning whether need into
Row defrosting.When outdoor environment temperature is lower than frost point temperature, then it is assumed that air-conditioning defrosts；When outdoor environment temperature is higher than
When frost point temperature, then it is assumed that air-conditioning is without defrosting.
Flow aperture by increasing throttling set changes refrigerant temperature and pressure etc. in refrigerant circulation circuit, makes final
The refrigerant for flowing into outdoor heat exchanger progress defrost can reach preferable defrosting effect, be made with reducing frost condensation to air-conditioning itself
The adverse effect of hot property.
S102: the refrigerant feed liquor temperature gap of outdoor heat exchanger and the predeterminated position temperature of outdoor heat exchanger are obtained.
Optionally, the coil pipe position of the outdoor heat exchanger of air-conditioner outdoor unit is provided with one first temperature sensor, this
One temperature sensor can be used for detecting the real time temperature of coil pipe position.Therefore, acquired outdoor coil pipe used temperature in step s 102
Degree can be the real time temperature by coil pipe position detected by the first temperature sensor.
The temperature change of the coil pipe position of outdoor heat exchanger can intuitively reflect in external outdoor environment temperature and interior
The temperature variations of the refrigerant pipeline of outdoor heat exchanger, are in addition typically also outdoor heat exchange under the refrigerant temperature joint effect in portion
Device is easy to appear the pipeline position of frosting problem.Therefore the outdoor coil temperature got, which can be used as, measures air-conditioning inside and outside pair
The reference factor that the frosting that outdoor heat exchanger generates jointly influences.
Optionally, the outdoor heat exchanger of air-conditioner outdoor unit is provided with a second temperature sensor, second temperature sensing
Device can be used for detecting the real time temperature of the refrigerant on the refrigerant outlet tube road for flowing through outdoor heat exchanger.Therefore, institute in step s 102
The refrigerant of the outdoor heat exchanger of acquisition, which goes out liquid temperature, can be real-time temperature by refrigerant detected by second temperature sensor
Degree.Here, when refrigerant outlet tube road is run for air-conditioning with heating mode refrigerant outflow outdoor heat exchanger via pipeline.
The temperature for flowing out the refrigerant of outdoor heat exchanger is to can reflect out the heat exchange effect of outdoor heat exchanger and outdoor environment
Rate, and heat exchanger effectiveness then will receive the influence of the frosting degree of outdoor heat exchanger；Here, air-conditioning frosting degree is lower, ice
In the case that frost thickness are relatively thin, influence of the frost to heat exchange is smaller, the heat that the refrigerant after flowing through outdoor heat exchanger is absorbed
It is more；And in the case where air-conditioning frosting degree is higher, frost thickness is thicker, frost is affected to heat exchange, flows through room
The heat that refrigerant after external heat exchanger is absorbed is less.Therefore the refrigerant that acquires, which goes out liquid temperature and can be used as, measures air-conditioning and changes
The reference factor of the frosting degree of hot device.
S103: in the case where refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria, control stops
Only increase the flow aperture of throttling set.
In the case where refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria, control stops adjustment
The operating status of the throttling set of air-conditioning mitigates the flow aperture for increasing throttling set caused by the normal heating performance of air-conditioning
It influences.
Optionally, defrost exit criteria are as follows:
ΔT1≥ΔT01, T2≥T02, t2≥t02
Wherein, Δ T1For the refrigerant feed liquor temperature gap of outdoor heat exchanger, Δ T01For fiducial temperature threshold value, T2It is changed for outdoor
The predeterminated position temperature of hot device, T02For preset temperature, t2For T2≥T02Duration, t02For preset duration.
Optionally, predeterminated position temperature includes the outdoor coil temperature of outdoor heat exchanger or the upper body of outdoor heat exchanger
Temperature.
Optionally, Δ T01Value range be [4 DEG C, 7 DEG C], such as 4 DEG C, 5 DEG C, 6 DEG C, 7 DEG C.
Optionally, in the case where predeterminated position temperature is the outdoor coil temperature of outdoor heat exchanger, preset temperature (first
Preset temperature) be prestore detected in air-conditioner defrosting test process outdoor heat exchanger defrosting after the completion of outdoor coil pipe used temperature
The correction temperature of degree.After the completion of outdoor heat exchanger defrosting, outdoor coil temperature can occur centainly due to white water evaporation etc.
Fluctuation.Therefore outdoor coil temperature after the completion of defrosting to the outdoor heat exchanger that is detected in air-conditioner defrosting test process into
Row correction, improves the accuracy of defrosting exit criteria.
First preset temperature can be calculated by the following formula to obtain:
T021=α * T001
Wherein, T021For the first preset temperature, α is the first proportionality coefficient, T001To be detected in air-conditioner defrosting test process
Outdoor coil temperature after the completion of the outdoor heat exchanger defrosting arrived.The value range of α be [1.1,1.3], for example, 1.1,1.15,
1.2、1.25、1.3。
Optionally, in the case where predeterminated position temperature is the upper body temperature of outdoor heat exchanger, preset temperature (second
Preset temperature) be prestore detected in air-conditioner defrosting test process outdoor heat exchanger defrosting after the completion of upper case body temperature
The correction temperature of degree.After the completion of outdoor heat exchanger defrosting, upper part case temperature can occur centainly due to white water evaporation etc.
Fluctuation.Therefore upper body temperature after the completion of defrosting to the outdoor heat exchanger that is detected in air-conditioner defrosting test process into
Row correction, improves the accuracy of defrosting exit criteria.
Second preset temperature can be calculated by the following formula to obtain:
T022=δ * T002
Wherein, T022For the second preset temperature, δ is the second proportionality coefficient, T002To be detected in air-conditioner defrosting test process
Upper body temperature after the completion of the outdoor heat exchanger defrosting arrived.The value range of δ be [1.1,1.3], for example, 1.1,1.15,
1.2、1.25、1.3。
In the defrosting exit criteria, the refrigerant feed liquor temperature gap of outdoor heat exchanger is greater than fiducial temperature threshold value, can be with
Side reflects that the defrost of outdoor heat exchanger outer surface is completed；The predeterminated position temperature of outdoor heat exchanger is greater than preset temperature and continues
Duration is greater than preset duration, and the heating performance that can reflect out outdoor heat exchanger restores at least frost or frostless situation.It therefore, can be with
The flow aperture for stopping increasing throttling set, exits the Defrost operation mode of air-conditioning.
Optionally, control increases the flow aperture of throttling set, comprising:
Target flow aperture is determined according to predeterminated position temperature；Wherein, target flow aperture is greater than the system in heating operations
Heat flow aperture；
The flow aperture of throttling set is adjusted to target flow aperture.
The refrigerant feed liquor temperature gap of outdoor heat exchanger is smaller, then illustrates that the frosting degree of outdoor heat exchanger of air conditioner is more tight
Again, it is larger that the second target flow aperture is set at this time, accelerates defrost；The refrigerant feed liquor temperature difference is larger, then illustrates air-conditioning outdoor heat exchange
The frosting lesser extent of device can suitably reduce the second target flow aperture, reduce the flow aperture for increasing throttling set to sky
Align the influence of normal heating performance.Therefore, it can determine that target flow is opened according to the refrigerant feed liquor temperature gap of outdoor heat exchanger
Degree.The flow aperture of throttling set is adjusted to the frosting situation for improving outdoor heat exchanger to target flow aperture.
Optionally, target flow aperture is determined according to predeterminated position temperature, comprising: according to predeterminated position temperature, from flow
Corresponding flow aperture is obtained in aperture incidence relation and using flow aperture as target flow aperture.
It include the corresponding relationship of one or more predeterminated position temperature and second flow aperture in flow aperture incidence relation.
For example, showing the corresponding relationship of a kind of optional predeterminated position temperature and second flow aperture in table 1:
Table 1: flow aperture incidence relation
| Predeterminated position temperature (unit: DEG C) | Second flow aperture |
| a1< T2≤a22 | B1 |
| a22< T2≤a23 | B2 |
| a23< T2 | B3 |
In flow aperture incidence relation, flow aperture and predeterminated position temperature are to be positively correlated.That is predeterminated position temperature is bigger,
Then flow aperture is bigger；And predeterminated position temperature is smaller, then flow aperture is with regard to smaller.
Optionally, after the flow aperture of throttling set for increasing air-conditioning in control, further includes: control reduces the interior of air-conditioning
The revolving speed of blower.
By the revolving speed for reducing the indoor fan of air-conditioning, it is possible to reduce the heat exchange speed of indoor heat exchanger and indoor environment
Rate can improve so that more heat can be retained by flowing into the refrigerant of outdoor heat exchanger after indoor heat exchanger outflow using cold
Matchmaker's heat can also reduce the operation power consumption of heating devices heat refrigerant to the defrosting effect of outdoor heat exchanger.
Optionally, after the flow aperture of throttling set for increasing air-conditioning in control, further includes: the outdoor of air-conditioning is shut down in control
Blower.
By shutting down outdoor fan, can also be reduced outdoor with the exchange rate of less outdoor heat exchanger and outdoor environment
The cryogenic conditions of environment influence the unfavorable temperature of outdoor heat exchanger frosting, reduce the heat dissipation of the refrigerant heat of defrost, to protect
Practical defrosting effect during card defrosting.
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides.
A kind of control method for air-conditioner defrosting is provided in the embodiment of the present disclosure, as shown in Fig. 2, including following step
It is rapid:
S201: judge whether air-conditioning defrosts.
S202: in the case where air-conditioning is defrosted, target flow aperture is determined according to predeterminated position temperature.
S203: the flow aperture of throttling set is adjusted to target flow aperture.
S204: control reduces the revolving speed of the indoor fan of air-conditioning.
S205: the outdoor fan of air-conditioning is shut down in control.
S206: the refrigerant feed liquor temperature gap of outdoor heat exchanger and the predeterminated position temperature of outdoor heat exchanger are obtained.
S207: judge whether refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria.
S208: in the case where refrigerant feed liquor temperature gap and predeterminated position temperature meet defrosting exit criteria, control stops
Only increase the flow aperture of throttling set, stop reducing the revolving speed of indoor fan and open outdoor fan.
In the present embodiment, defrosting effect meeting shadow is improved by adjusting the throttling set of air-conditioning, the operating status of inside and outside blower
Ring the normal heating performance of air-conditioning.Therefore meet defrosting in the refrigerant feed liquor temperature gap and predeterminated position temperature of outdoor heat exchanger
In the case where exit criteria, control stops the operating status of adjustment throttling set and inside and outside blower and restores to normal heating mode
Operating status, restore the normal heating performance of air-conditioning.
Fig. 3 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides.
The embodiment of the present disclosure provides a kind of control device for air-conditioner defrosting, and structure is as shown in Figure 3, comprising:
Processor (processor) 30 and memory (memory) 31 can also include communication interface
(Communication Interface) 32 and bus 33.Wherein, processor 30, communication interface 32, memory 31 can pass through
Bus 33 completes mutual communication.Communication interface 32 can be used for information transmission.Processor 30 can call in memory 31
Logical order, to execute the control method for air-conditioner defrosting of above-described embodiment.
In addition, the logical order in above-mentioned memory 31 can be realized and as only by way of SFU software functional unit
Vertical product when selling or using, can store in a computer readable storage medium.
Memory 31 is used as a kind of computer readable storage medium, can be used for storing software program, journey can be performed in computer
Sequence, such as the corresponding program instruction/module of the method in the embodiment of the present disclosure.Processor 30 is stored in memory 31 by operation
Program instruction/module be used for air-conditioning in realization above method embodiment thereby executing functional application and data processing
The control method of defrosting.
Memory 31 may include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program needed for a few function；Storage data area, which can be stored, uses created data etc. according to terminal device.This
Outside, memory 31 may include high-speed random access memory, can also include nonvolatile memory.
The embodiment of the present disclosure provides a kind of air-conditioning, comprising:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
The above-mentioned control device for air-conditioner defrosting, is electrically connected with throttling set.
The air-conditioning that the embodiment of the present disclosure provides, judges that air-conditioning exits using refrigerant feed liquor temperature gap and predeterminated position temperature
The opportunity of defrosting, so as to effectively improve the control precision for exiting defrosting to control air-conditioning；And by increasing throttling set
Flow aperture changes refrigerant temperature and pressure in refrigerant circulation circuit etc., makes to finally flow into the cold of outdoor heat exchanger progress defrost
Matchmaker can reach preferable defrosting effect, to reduce frost condensation to the adverse effect of air-conditioning itself heating performance.
The embodiment of the present disclosure provides a kind of computer readable storage medium, is stored with computer executable instructions, described
Computer executable instructions are arranged to carry out the above-mentioned control method for air-conditioner defrosting.
The embodiment of the present disclosure provides a kind of computer program product, and the computer program product includes being stored in calculating
Computer program on machine readable storage medium storing program for executing, the computer program include program instruction, when described program instruction is calculated
When machine executes, the computer is made to execute the above-mentioned control method for air-conditioner defrosting.
Above-mentioned computer readable storage medium can be transitory computer readable storage medium, be also possible to non-transient meter
Calculation machine readable storage medium storing program for executing.
The technical solution of the embodiment of the present disclosure can be embodied in the form of software products, which deposits
Storage in one storage medium, including one or more instruction is used so that computer equipment (can be personal computer,
Server or the network equipment etc.) execute embodiment of the present disclosure the method all or part of the steps.And storage above-mentioned is situated between
Matter can be non-transient storage media, comprising: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), with
Machine accesses a variety of Jie that can store program code such as memory (RAM, Random Access Memory), magnetic or disk
Matter is also possible to transitory memory medium.
Above description and attached drawing sufficiently illustrate embodiment of the disclosure, to enable those skilled in the art to practice
They.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment only represents
Possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can change.
The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The embodiment of the present disclosure
Range includes the entire scope of claims and all obtainable equivalents of claims.When for the application
When middle, although term " first ", " second " etc. may be used in this application to describe each element, these elements should not be by
To the limitation of these terms.These terms are only used to differentiate an element with another element.For example, not changing description
Meaning in the case where, first element can be called second element, and same, and second element can be called first element,
As long as " first element " that is occurred unanimously renames and " second element " occurred unanimously renames.First
Element and second element are all elements, but can not be identical element.Moreover, word used herein is only used for describing
Embodiment and it is not used in limitation claim.As used in the description in embodiment and claim, unless context
It clearly illustrates, otherwise "one" (a) of singular, "one" (an) and " described " (the) is intended to equally include plural shape
Formula.Similarly, term "and/or" refers to and associated lists comprising one or more as used in this specification
Any and all possible combination.In addition, when in the application, term " includes " (comprise) and its modification " packet
Include " (comprises) and/or feature, entirety, step, operation, element and/or group including the statement such as (comprising) fingers
The presence of part, but it is not excluded for one or more other features, entirety, step, operation, element, component and/or these point
The presence or addition of group.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method or equipment for including the element.Herein, each embodiment emphasis
What is illustrated can be the difference from other embodiments, and the same or similar parts in each embodiment can refer to each other.It is right
For the method disclosed in embodiment, product etc., if it is corresponding with method part disclosed in embodiment, related place
It may refer to the description of method part.
It will be appreciated by those of skill in the art that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and
Algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode execute, and can depend on the specific application and design constraint of technical solution.The technical staff
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The range of the embodiment of the present disclosure.The technical staff can be understood that, for convenience and simplicity of description, foregoing description
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, no longer superfluous herein
It states.
In embodiments disclosed herein, disclosed method, product (including but not limited to device, equipment etc.) can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
Divide, can be only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or
Component can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.The unit as illustrated by the separation member can be or
Person, which may not be, to be physically separated, and component shown as a unit may or may not be physical unit
With in one place, or may be distributed over multiple network units.Portion therein can be selected according to the actual needs
Point or whole unit realize the present embodiment.In addition, each functional unit in the embodiments of the present disclosure can integrate at one
In processing unit, it is also possible to each unit and physically exists alone, a list can also be integrated in two or more units
In member.
The flow chart and block diagram in the drawings show system, the method and computer program products according to the embodiment of the present disclosure
Architecture, function and operation in the cards.In this regard, each box in flowchart or block diagram can represent one
A part of module, section or code, a part of the module, section or code include it is one or more for realizing
The executable instruction of defined logic function.In some implementations as replacements, function marked in the box can also be with
Occur different from the sequence marked in attached drawing.For example, two continuous boxes can actually be basically executed in parallel, they
Sometimes it can also execute in the opposite order, this can be depended on the functions involved.Flow chart and block diagram institute in the accompanying drawings
In corresponding description, operation corresponding to different boxes or step can also be to be different from sequence hair disclosed in description
Raw, there is no specific sequences between sometimes different operations or step.For example, two continuous operations or step actually may be used
To be basically executed in parallel, they can also be executed in the opposite order sometimes, this can be depended on the functions involved.Block diagram
And/or the combination of each box in flow chart and the box in block diagram and or flow chart, it can the function as defined in executing
Can or the dedicated hardware based system of movement realize, or can come using a combination of dedicated hardware and computer instructions real
It is existing.
Claims (10)
1. a kind of control method for air-conditioner defrosting characterized by comprising
In the case where air-conditioning is defrosted, control increases the flow aperture of the throttling set of the air-conditioning；
Obtain the refrigerant feed liquor temperature gap of the outdoor heat exchanger and the predeterminated position temperature of the outdoor heat exchanger；
In the case where the refrigerant feed liquor temperature gap and the predeterminated position temperature meet defrosting exit criteria, control stops
Increase the flow aperture of the throttling set.
2. control method according to claim 1, which is characterized in that the defrosting exit criteria are as follows:
ΔT1≥ΔT01, T2≥T02, t2≥t02
Wherein, Δ T1For the refrigerant feed liquor temperature gap of outdoor heat exchanger, Δ T01For fiducial temperature threshold value, T2For outdoor heat exchanger
Predeterminated position temperature, T02For preset temperature, t2For T2≥T02Duration, t02For preset duration.
3. control method according to claim 1, which is characterized in that the predeterminated position temperature includes the outdoor heat exchange
The upper body temperature of the outdoor coil temperature of device or the outdoor heat exchanger.
4. control method according to any one of claims 1 to 3, which is characterized in that control increases the throttling set
Flow aperture, comprising:
Target flow aperture is determined according to the predeterminated position temperature；Wherein, the target flow aperture is greater than in heating operations
Heating flow aperture；
The flow aperture of the throttling set is adjusted to the target flow aperture.
5. control method according to claim 4, which is characterized in that determine the target according to the predeterminated position temperature
Flow aperture, comprising:
According to the predeterminated position temperature, corresponding flow aperture is obtained from flow aperture incidence relation；
Using the flow aperture as the target flow aperture.
6. control method according to claim 5, which is characterized in that described default in the flow aperture incidence relation
Position temperature and the flow aperture are to be positively correlated.
7. control method according to any one of claims 1 to 3, which is characterized in that increase the section of the air-conditioning in control
After the flow aperture for flowing device, further includes:
Control reduces the revolving speed of the indoor fan of the air-conditioning.
8. control method according to any one of claims 1 to 3, which is characterized in that increase the section of the air-conditioning in control
After the flow aperture for flowing device, further includes:
The outdoor fan of the air-conditioning is shut down in control.
9. a kind of control device for air-conditioner defrosting, including processor and the memory for being stored with program instruction, feature exists
In the processor is configured to executing as claimed in any one of claims 1 to 8 be used for when executing described program instruction
The control method of air-conditioner defrosting.
10. a kind of air-conditioning characterized by comprising
Refrigerant circulation circuit connects structure by refrigerant pipeline by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor
At；
The control device as claimed in claim 9 for being used for air-conditioner defrosting, is electrically connected with the throttling set.
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| CN201910714255.7A CN110470015A (en) | 2019-08-03 | 2019-08-03 | Control method and device, air-conditioning for air-conditioner defrosting |
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| CN201910714255.7A CN110470015A (en) | 2019-08-03 | 2019-08-03 | Control method and device, air-conditioning for air-conditioner defrosting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114061035A (en) * | 2021-11-02 | 2022-02-18 | 青岛海尔空调器有限总公司 | Method and device for controlling defrosting of electrochemical air conditioner and electrochemical air conditioner |
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Application publication date: 20191119 |