CN108800441B - Multi-connected machine defrosting control method and air conditioning multi-couple machine system - Google Patents
Multi-connected machine defrosting control method and air conditioning multi-couple machine system Download PDFInfo
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- CN108800441B CN108800441B CN201810661437.8A CN201810661437A CN108800441B CN 108800441 B CN108800441 B CN 108800441B CN 201810661437 A CN201810661437 A CN 201810661437A CN 108800441 B CN108800441 B CN 108800441B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- 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
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
- Defrosting Systems (AREA)
Abstract
The present invention provides a kind of multi-connected machine defrosting control method and air conditioning multi-couple machine systems.Wherein, multi-connected machine defrosting control method is applied to air conditioning multi-couple machine system, and air conditioning multi-couple machine system includes more indoor units.Multi-connected machine defrosting control method includes: to obtain the Cumulative Elapsed Time of every indoor unit when receiving defrosting instruction；According to Cumulative Elapsed Time, more indoor units are divided into common indoor unit and target indoor unit；Reach scheduled duration after receiving defrosting instruction, the inner blower for controlling common indoor unit is closed and the inner blower of control target indoor unit enters high wind file operation, until defrosting terminates.During defrosting other than compressor work provides the heat of defrost, in the high wind file operational process of target indoor unit also thermal energy can be provided for defrost from the interior space draw heat of corresponding installation, to accelerate defrost speed, the too long defrost time is avoided to bring undesirable experience to user.
Description
Technical field
The present invention relates to Defrost technology field, in particular to a kind of multi-connected machine defrosting control method and air conditioning multi-couple machine system
System.
Background technique
Air-conditioning frost can occur on the evaporator of outdoor unit due to the temperature difference in heating operations.Air-conditioning is tied
Frost and if handling not in time, will have a direct impact on the use of air-conditioning.
Defrost function at every air conditioner indispensability one of function.Current each air-conditioning producer quotient produces multi-connected air conditioner
All interior machine blowers all stall when product heating defrost, and defrost heat all is from compressor work at this time, and origin of heat is more single
One.The defrost time occupies 1/10 or so of heating period, and the defrost time is relatively long, influences the comfortable sexual experience of user.
Summary of the invention
In view of this, the present invention is directed to propose a kind of multi-connected machine defrosting control method, to accelerate defrost speed, and takes into account use
The comfort level at family is experienced.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of multi-connected machine defrosting control method, is applied to air conditioning multi-couple machine system, and the air conditioning multi-couple machine system includes more
Platform indoor unit, the multi-connected machine defrosting control method include: to obtain the tired of every indoor unit when receiving defrosting instruction
The plot operation time；According to the Cumulative Elapsed Time, the more indoor units are divided into common indoor unit and target indoor unit；
Reach scheduled duration after receiving defrosting instruction, the target is closed and controlled to the inner blower for controlling the common indoor unit
The inner blower of indoor unit enters high wind file operation, until defrosting terminates.
Further, described according to the Cumulative Elapsed Time, by the more indoor units be divided into common indoor unit and
The step of target indoor unit includes: according to the Cumulative Elapsed Time of indoor unit described in every, when the corresponding accumulation is run
Between lower than default lower threshold the indoor unit as the target indoor unit.
Further, described according to the Cumulative Elapsed Time, by the more indoor units be divided into common indoor unit and
The step of target indoor unit includes: to calculate average operating time according to the Cumulative Elapsed Time of indoor unit described in every；It will be described
The Cumulative Elapsed Time of indoor unit is compared with the average operating time, to obtain comparison result；It is relatively tied according to described
The more indoor units are divided into common indoor unit and target indoor unit by fruit.
Further, described according to the comparison result, the more indoor units are divided into common indoor unit and target
The mode of indoor unit includes: by the corresponding Cumulative Elapsed Time in the more indoor units lower than the average operating time
Predetermined ratio the indoor unit as target indoor unit；By the corresponding Cumulative Elapsed Time in the more indoor units
The indoor unit not less than the predetermined ratio of the average operating time is used as common indoor unit.
Further, the Cumulative Elapsed Time for obtaining every indoor unit includes: every indoor unit of statistics
Each section of heating operation duration in scheduled time slot；According to the heating operation duration, the tired of every indoor unit is obtained
The plot operation time.
Further, the multi-connected machine defrosting control method further include: each indoor unit of detecting is to outdoor unit
The response condition of power-on command；If the corresponding response condition occur is the abnormal indoor unit, indoor unit event is carried out
Hinder alarm.
Further, the multi-connected machine defrosting control method further include: the corresponding response condition is different if it does not exist
The normal indoor unit then judges whether the heating operation duration being recorded after the indoor unit each run is quasi-
Really；When the heating operation duration inaccuracy being recorded, it is acquired abnormal alarm.
Further, the multi-connected machine defrosting control method further include: reach described pre- after receiving defrosting instruction
Timing is long, launches into defrosting mode；Wherein, when operating in the defrosting mode, the inner blower of the common indoor unit
It remains turned-off, the inner blower of the target indoor unit is remained operational in high wind file.
Compared with the existing technology, multi-connected machine defrosting control method of the present invention has the advantage that
Multi-connected machine defrosting control method of the present invention passes through every room when receiving defrosting instruction, according to acquisition
The Cumulative Elapsed Time of interior machine filters out part indoor unit as target indoor unit, and using other indoor units as common interior
Machine.So as to receive defrosting instruction after reach scheduled duration, then control the common indoor unit inner blower close, make often
Waste heat is blown out to the interior space of installation with indoor unit, interior space temperature abrupt change during defrosting is avoided, is brought not to user
Good usage experience.Target indoor unit is controlled again to be run with high wind file until defrosting terminates.In addition to compressor is done during defrosting
Function is provided except the heat of defrost, also can be from the interior space extract heat of corresponding installation in the high wind file operational process of target indoor unit
Amount provides thermal energy for defrost, to accelerate defrost speed, the too long defrost time is avoided to bring undesirable experience to user.
Another object of the present invention is to propose a kind of multi-connected machine defrosting control method, to solve the above problems.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air conditioning multi-couple machine system, the air conditioning multi-couple machine system include more indoor units, processing unit, acquisition units
And control unit, the acquisition unit, control unit are electrically connected with indoor unit described in every respectively, the processing unit difference
It is electrically connected with the acquisition unit and control unit；The acquisition unit, for recording every indoor unit in pre- timing
Each section of heating operation duration in section, and feed back to the processing unit；The processing unit, for referring to receiving defrosting
When enabling, the Cumulative Elapsed Time of every indoor unit is obtained；The processing unit is used for according to the Cumulative Elapsed Time,
The more indoor units are divided into common indoor unit and target indoor unit；Described control unit, for referring to receiving defrosting
Reach scheduled duration after enabling, the inner blower of the target indoor unit is closed and controlled to the inner blower for controlling the common indoor unit
It is run into high wind file, until defrosting terminates.
Further, the processing unit is also used to:, will be corresponding according to the Cumulative Elapsed Time of indoor unit described in every
The Cumulative Elapsed Time is lower than the indoor unit of default lower threshold as the target indoor unit；Or according to every institute
The Cumulative Elapsed Time of indoor unit is stated, average operating time is calculated；By the Cumulative Elapsed Time of the indoor unit with it is described average
Runing time is compared, to obtain comparison result；According to the comparison result, the more indoor units are divided into common room
Interior machine and target indoor unit.
Possessed advantage is identical compared with the existing technology with above-mentioned air conditioning multi-couple machine system for the air conditioning multi-couple machine system,
Details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of air conditioning multi-couple machine system described in the embodiment of the present invention；
Fig. 2 is the step flow chart of multi-connected machine defrosting control method described in the embodiment of the present invention；
Fig. 3 is another part of the step flow chart of multi-connected machine defrosting control method described in the embodiment of the present invention；
Fig. 4 is another part of the structural schematic diagram of air conditioning multi-couple machine system described in the embodiment of the present invention.
Description of symbols:
1- air conditioning multi-couple machine system, 2- outdoor unit, 3- indoor unit, 4- acquisition unit, 5- processing unit, 6- control unit.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Frosting is common problem for air-conditioning, especially in heating operations, the evaporator table of outdoor unit
It is easy to appear solidifying frosts in face.If handling these solidifying frosts not in time, the heating performance of air conditioner will be directly affected.Therefore, for
For air-conditioning, automatic defrosting is an essential Xiang Gongneng.
In the related technology, air-conditioning is mainly switched to refrigeration mode operation by the mode that air-conditioning executes defrosting, and in closing
Blower avoids blowing cold air from influencing the experience of user.For multi-online air-conditioning system, Defrost mode is also such.Invention
People it has been observed that defrost during by heat all be from compressor work, origin of heat is relatively simple, when leading to defrost
Between occupy heating the period 1/10 or so, the defrost time is relatively long, influences the comfortable sexual experience of user.
Therefore, the embodiment of the present invention provides a kind of multi-connected machine defrosting control method and multi-online air-conditioning system, for shortening
The defrost time, and then users'comfort is turned up.
In addition, the multi-online air-conditioning system being previously mentioned in an embodiment of the present invention, as shown in Figure 1, may include outdoor
Machine and more indoor units, outdoor unit are separately connected with more indoor units.The defrosting being previously mentioned in an embodiment of the present invention refers to
It enables, can be multi-online air-conditioning system when detecting with defrosting demand, the instruction of generation；It can also be response user's operation
The instruction of generation.The common indoor unit being previously mentioned in an embodiment of the present invention refers in more indoor units in addition to according to accumulation
Other indoor units other than the target indoor unit that runing time is determined.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
First embodiment
Referring to FIG. 2, the embodiment of the invention provides a kind of multi-connected machine defrosting control methods.Multi-connected machine defrosting controlling party
Method is applied to above-mentioned air conditioning multi-couple machine system 1.As shown in Fig. 2, above-mentioned multi-connected machine defrosting control method the following steps are included:
Step S101 obtains the Cumulative Elapsed Time of every indoor unit 3 when receiving defrosting instruction.
In the embodiment of the present invention, above-mentioned Cumulative Elapsed Time can be the heating every time in scheduled time slot of every indoor unit 3
The duration summation of operation.Optionally, step S101 can be accomplished by the following way: count every indoor unit 3 respectively predetermined
Each section of heating operation duration in period.Further according to the heating operation duration in predetermined period, the tired of every indoor unit 3 is obtained
The plot operation time, and the predetermined period belongs to heating season, such as winter or early spring.It should be noted that above-mentioned pre-
Timing section refers in the specified duration before receiving defrosting instruction.For example, specified duration can be one month, then pre- timing
Section refers to one month before receiving defrosting instruction.It should also be noted that, heating season can be preset by user.Into
One step, indoor unit 3 after starting heating operation, records corresponding system using the acquisition unit 4 of air conditioning multi-couple machine system 1 every time
Hot operation duration.
As an implementation, acquisition unit 4 and the controller of every indoor unit 3 are electrically connected, so as to according to control
Heating operation duration of this of the record of feedback information of the device indoor unit 3 during air conditioning multi-couple machine 1 heating operation of system.
Further, receive defrosting instruction when, then by processing unit 5 can according to the heating operation duration that acquisition unit 4 records,
Obtain the corresponding Cumulative Elapsed Time of every indoor unit 3.
More indoor units 3 are divided into common indoor unit and target indoor unit according to Cumulative Elapsed Time by step S102.
In embodiments of the present invention, the processing unit 5 of air conditioning multi-couple machine system 1 is according to the analysis to Cumulative Elapsed Time,
Rarely needed indoor unit 3 is selected from more indoor units 3 is used as target indoor unit.
Optionally, the above-mentioned mode that more indoor units 3 are divided into common indoor unit and target indoor unit can be according to every
Corresponding Cumulative Elapsed Time is lower than 3 conduct of the indoor unit of default lower threshold by the Cumulative Elapsed Time of platform indoor unit 3
The target indoor unit, other are as common indoor unit.Preferably, default lower threshold can be 0, i.e., by multiple indoor units 3
In within a preset period of time from not enabled heat indoor unit 3 be used as target indoor unit.
Optionally, the above-mentioned mode that more indoor units 3 are divided into common indoor unit and target indoor unit can also basis
The Cumulative Elapsed Time of every indoor unit 3 calculates average operating time.By the Cumulative Elapsed Time of the indoor unit 3 with it is described
Average operating time is compared, to obtain comparison result.Further according to comparison result, the more indoor units 3 are divided into often
With indoor unit and target indoor unit.Specifically, the Cumulative Elapsed Time of the indoor unit 3 and the average operating time are carried out
Comparing can be accomplished by the following way: calculate the ratio between the Cumulative Elapsed Time and average operating time of every indoor unit 3
Example will calculate each ratio obtained and be compared with predetermined ratio, if being lower than the predetermined ratio, it can be assumed that the room
The corresponding Cumulative Elapsed Time of interior machine 3 is lower than the predetermined ratio of average operating time, and as target indoor unit.Finally will
Other indoor units 3 of target indoor unit are not belonging to as common indoor unit.Preferably, above-mentioned predetermined ratio can be 10%.
Step S103 reaches scheduled duration after receiving defrosting instruction, controls the inner blower of the common indoor unit
The inner blower for closing and controlling the target indoor unit enters high wind file operation, until defrosting terminates.
As an implementation, after receiving defrosting instruction, air conditioning multi-couple machine system 1 switches defrosting mode fortune
Row.After switching to defrosting mode, the four-way valve of air conditioning multi-couple machine system 1 commutates, the refrigerant after making compressor compresses do work
It is introduced into the evaporator coil of outdoor unit 2, during making refrigerant radiate by the evaporator coil of outdoor unit 2, makes to evaporate
The frostization of device coil pipe.It should be noted that 2 evaporimeter frosting of outdoor unit usually occurs to run on system in air conditioning multi-couple machine system 1
During heat pattern, therefore, when air conditioning multi-couple machine system 1 receives defrosting instruction, air conditioning multi-couple machine system 1 is with heating
Mode operation.
The inner blower of common indoor unit is run according to wind file before this in scheduled duration, so that waste heat is blowed to correspondence
The interior space, it is ensured that the experience of the user in the interior space.After a predetermined time period, the interior wind of common indoor unit is turned off
Machine avoids cold wind from entering the corresponding interior space, influences user.It should be noted that user's direct feel is to defrosting stage master
To pass through the reduction of interior space temperature and two aspect of stopping duration of inner blower.Therefore, by common indoor unit predetermined
Waste heat is blown to the interior space in duration, room temperature can be not only maintained to a certain extent, also shorten target under the defrosting stage
The shut-in time of the inner blower of indoor unit.At the same time, it forces the inner blower of target indoor unit to enter high wind file operation, passes through in this way
The refrigerant for crossing target indoor unit can absorb heat out of this corresponding interior space of target indoor unit, improve the temperature of refrigerant
Degree, provides more thermal energy for the evaporator defrost of outdoor unit 2, and then effectively shorten the defrost time.
Preferably, scheduled duration can be 20s, and the duration of 20s had both taken full advantage of the waste heat of pipeline inner refrigerant, can also
Even if the refrigerant for avoiding temperature low is by bringing undesirable usage experience to user when common indoor unit.In this way in common indoor unit
The defrosting phases-time that user's actual perceived in the corresponding interior space arrives will be reduced.
Further, after the completion of air conditioning multi-couple machine system 1 detects 2 defrost of outdoor unit, by air conditioning multi-couple machine system 1
Working condition restore to receive defrosting instruction before.Specifically, control air conditioning multi-couple machine system 1 restores heating mode operation,
The inner blower of the inner blower and common indoor unit that control target indoor unit is restored to initial wind file.
As another embodiment, after receiving defrosting instruction, the corresponding inner blower of target indoor unit is forced
With the operation of high wind file, common indoor unit is still run according to wind file before this, until reaching preset duration, restarts to enter and remove
White mode, the four-way valve commutation of air conditioning multi-couple machine system 1, the refrigerant after making compressor compresses do work are introduced into outdoor unit 2
Evaporator coil makes the frostization of evaporator coil during so that refrigerant is radiated by the evaporator coil of outdoor unit 2.It needs
It is noted that 2 evaporimeter frosting of outdoor unit usually occurs during air conditioning multi-couple machine system 1 runs on heating mode,
Therefore, when air conditioning multi-couple machine system 1 receives defrosting instruction, air conditioning multi-couple machine system 1 is run with heating mode.
After preset duration, the common corresponding inner blower of indoor unit is closed.It should be noted that in the operation defrosting mode phase
Between, the inner blower of common indoor unit remains turned-off, and the inner blower of target indoor unit is remained operational in high wind file.In preset duration
Interior, the temperature of the corresponding interior space can be improved, convenient in the operation defrosting mode phase in the high wind file operation of target indoor unit
Between, the refrigerant of target indoor unit is flowed through, more heats can be obtained from the corresponding interior space, be the evaporation of outdoor unit 2
Device defrost provides more thermal energy, accelerates the defrost time.
Further, after the completion of air conditioning multi-couple machine system 1 detects 2 defrost of outdoor unit, by air conditioning multi-couple machine system 1
Working condition restore to receive defrosting instruction before.Specifically, control air conditioning multi-couple machine system 1 restores heating mode operation,
The inner blower of the inner blower and common indoor unit that control target indoor unit is restored to initial wind file.
Typically, each indoor unit 3 is installed on an interior space, for adjusting institute under the dragging of outdoor unit 2
The environmental parameter of the interior space of installation, for example, temperature, humidity etc..Although can be in each Interior Space in air conditioning multi-couple machine system 1
Between an indoor unit 3 is installed, be not that each indoor unit 3 can be used still.For example, being deployed in the air-conditioning of a company
Multi-line system 1, the heating time length and heating frequency for being installed on the indoor unit 3 in office section can be very high, however are installed on
The indoor unit 3 of the interior space of meeting room, archive office, reference room etc for heating time with regard to seldom, even without.Example again
Such as, it is deployed in the air conditioning multi-couple machine system 1 of family, is mounted on the time that the indoor unit 3 in master bedroom and parlor be used to heat
Long and heating frequency is also high, and still, the indoor unit 3 for being installed on the guest room left unused more months is but rarely used in heating, or even never opens
Moved heating.In embodiments of the present invention, by will be rarely needed in predetermined period, even unused indoor unit 3 be used as mesh
Indoor unit is marked, makes it during entire defrost, with the operation of high wind file, is obtained from the interior space that target indoor unit is installed
Heat accelerates defrosting speed.
Further, as shown in figure 3, a kind of multi-connected machine defrosting control method provided in an embodiment of the present invention further include:
Step S201, response condition of each indoor unit 3 of detecting to the power-on command of outdoor unit 2.
In embodiments of the present invention, for air conditioning multi-couple machine system 1 after the starting heating of every secondary response user's operation, detecting is every
Response condition of one indoor unit 3 to the power-on command of outdoor unit 2.
Step S202 carries out 3 event of indoor unit if the corresponding response condition occur is the abnormal indoor unit 3
Hinder alarm.
In embodiments of the present invention, the power-on instruction that indoor unit 3 sends outdoor unit 2 is not responding to, it is believed that the interior
The corresponding response condition of machine 3 is abnormal.The response time for the power-on instruction that indoor unit 3 sends outdoor unit 2 is more than to allow duration
When, it is also assumed that the corresponding response condition of indoor unit 3 is abnormal.
Step S203, response condition is the abnormal indoor unit 3 if it does not exist, judges that 3 each run of indoor unit terminates
Whether the heating operation duration being recorded afterwards is accurate.
In embodiments of the present invention, response condition is the abnormal indoor unit 3 if it does not exist, then after heating,
Judge whether the heating operation duration being recorded after 3 each run of indoor unit is accurate.Optionally, judge indoor unit
The whether accurate mode of the heating operation duration being recorded after 3 each runs may is that in acquisition unit 4 in portion
Divide in 3 operational process of indoor unit and do not acquire heating operation duration, and returns to error information；It can also be collected part room
Interior 3 heating operation duration of machine is excessively dispersed.Further, it when the heating operation duration inaccuracy being recorded, carries out
Acquisition abnormity alarm.
Second embodiment
Referring to figure 4., another part schematic diagram of air conditioning multi-couple machine system 1 provided in an embodiment of the present invention.Such as Fig. 4 institute
Show, air conditioning multi-couple machine system 1 further include: processing unit 5, acquisition unit 4 and control unit 6, the acquisition unit 4, control are single
Member 6 is electrically connected with every indoor unit 3 respectively, and processing unit 5 is electrically connected with the acquisition unit 4 and control unit 6 respectively.
The acquisition unit 4, when for recording each section of heating operation of every indoor unit 3 in scheduled time slot
It is long, and feed back to the processing unit 5.
The processing unit 5, when for when receiving defrosting instruction, obtaining the accumulation operation of every indoor unit 3
Between.
The processing unit 5, for according to the Cumulative Elapsed Time, the more indoor units 3 to be divided into common room
Interior machine and target indoor unit.
Preferably, processing unit 5 is executed according to the Cumulative Elapsed Time, the more indoor units 3 is divided into common
The mode of indoor unit and target indoor unit can be following at least one:
(1) according to the Cumulative Elapsed Time of indoor unit 3 described in every, by the corresponding Cumulative Elapsed Time lower than default
The indoor unit 3 of lower threshold is used as the target indoor unit.
(2) according to the Cumulative Elapsed Time of indoor unit 3 described in every, average operating time is calculated；By the indoor unit 3
Cumulative Elapsed Time is compared with the average operating time, to obtain comparison result；It, will be described according to the comparison result
More indoor units 3 are divided into common indoor unit and target indoor unit.
Described control unit 6 controls the common indoor unit for reaching scheduled duration after receiving defrosting instruction
Inner blower close and control the inner blower of the target indoor unit and enter the operation of high wind file, until defrosting terminates.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In conclusion a kind of multi-connected machine defrosting control method provided in an embodiment of the present invention and air conditioning multi-couple machine system.Its
In, the multi-connected machine defrosting control method is applied to air conditioning multi-couple machine system, and the air conditioning multi-couple machine system includes more interiors
Machine.The multi-connected machine defrosting control method includes: the accumulation operation that every indoor unit is obtained when receiving defrosting instruction
Time；According to the Cumulative Elapsed Time, the more indoor units are divided into common indoor unit and target indoor unit；It is receiving
Reach scheduled duration after to defrosting instruction, the target indoor unit is closed and controlled to the inner blower for controlling the common indoor unit
Inner blower enter the operation of high wind file, until defrosting terminates.During defrosting in addition to compressor work provide defrost heat it
Outside, also thermal energy can be provided for defrost from the interior space draw heat of corresponding installation in the high wind file operational process of target indoor unit,
To accelerate defrost speed, the too long defrost time is avoided to bring undesirable experience to user.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multi-connected machine defrosting control method is applied to air conditioning multi-couple machine system (1), air conditioning multi-couple machine system (1) packet
Include more indoor units (3), which is characterized in that the multi-connected machine defrosting control method includes:
When receiving defrosting instruction, the Cumulative Elapsed Time of every indoor unit (3) is obtained；
According to the Cumulative Elapsed Time, the more indoor units (3) are divided into common indoor unit and target indoor unit；
In the scheduled duration for receiving defrosting instruction, control the common indoor unit inner blower keep current wind file operation and
The inner blower for controlling the target indoor unit enters high wind file operation, until reaching the scheduled duration, restarts into defrosting
Mode, the four-way valve commutation of the air conditioning multi-couple machine system (1), the refrigerant after making compressor compresses do work are introduced into outdoor unit
(2) evaporator coil；After the scheduled duration, the target is closed and controlled to the inner blower for controlling the common indoor unit
The inner blower of indoor unit is remained operational in high wind file, until defrosting terminates.
2. multi-connected machine defrosting control method according to claim 1, which is characterized in that when the operation according to the accumulation
Between, the step of more indoor units (3) are divided into common indoor unit and target indoor unit includes:
According to the Cumulative Elapsed Time of indoor unit described in every (3), the corresponding Cumulative Elapsed Time is lower than default lower bound
The indoor unit (3) of threshold value is used as the target indoor unit.
3. multi-connected machine defrosting control method according to claim 1, which is characterized in that when the operation according to the accumulation
Between, the step of more indoor units (3) are divided into common indoor unit and target indoor unit includes:
According to the Cumulative Elapsed Time of indoor unit described in every (3), average operating time is calculated；
The Cumulative Elapsed Time of the indoor unit (3) is compared with the average operating time, to obtain comparison result；
According to the comparison result, the more indoor units (3) are divided into common indoor unit and target indoor unit.
4. multi-connected machine defrosting control method according to claim 3, which is characterized in that it is described according to the comparison result,
Include: by the mode that the more indoor units (3) are divided into common indoor unit and target indoor unit
The corresponding Cumulative Elapsed Time in the more indoor units (3) is lower than to the predetermined ratio of the average operating time
The indoor unit (3) be used as target indoor unit；
The corresponding Cumulative Elapsed Time in the more indoor units (3) is not less than to the predetermined ratio of the average operating time
The indoor unit (3) of example is as common indoor unit.
5. multi-connected machine defrosting control method according to claim 1, which is characterized in that every indoor unit of the acquisition
(3) Cumulative Elapsed Time includes:
Count each section of heating operation duration of every indoor unit (3) in scheduled time slot；
According to the heating operation duration, the Cumulative Elapsed Time of every indoor unit (3) is obtained.
6. multi-connected machine defrosting control method according to claim 5, which is characterized in that the multi-connected machine defrosting control method
Further include:
The each indoor unit (3) is detected to the response condition of the power-on command of outdoor unit (2)；
If the corresponding response condition occur is the abnormal indoor unit (3), indoor unit (3) fault warning is carried out.
7. multi-connected machine defrosting control method according to claim 6, which is characterized in that the multi-connected machine defrosting control method
Further include:
The corresponding response condition is the abnormal indoor unit (3) if it does not exist, then judges that the indoor unit (3) is transported every time
Whether the heating operation duration being recorded after row is accurate；
When the heating operation duration inaccuracy being recorded, it is acquired abnormal alarm.
8. multi-connected machine defrosting control method according to claim 1, which is characterized in that the multi-connected machine defrosting control method
Further include:
Reach the scheduled duration after receiving defrosting instruction, launches into defrosting mode；
Wherein, when operating in the defrosting mode, the inner blower of the common indoor unit is remained turned-off, the target indoor unit
Inner blower is remained operational in high wind file.
9. a kind of air conditioning multi-couple machine system, which is characterized in that the air conditioning multi-couple machine system (1) includes more indoor units (3), place
Unit (5), acquisition unit (4) and control unit (6) are managed, the acquisition unit (4), control unit (6) are respectively and described in every
Indoor unit (3) is electrically connected, and the processing unit (5) is electrically connected with the acquisition unit (4) and control unit (6) respectively；
The acquisition unit (4), when for recording each section of heating operation of every indoor unit (3) in scheduled time slot
It is long, and feed back to the processing unit (5)；
The processing unit (5), when for when receiving defrosting instruction, obtaining the accumulation operation of every indoor unit (3)
Between；
The processing unit (5), for according to the Cumulative Elapsed Time, the more indoor units (3) to be divided into common room
Interior machine and target indoor unit；
Described control unit (6), for controlling the interior wind of the common indoor unit in the scheduled duration for receiving defrosting instruction
The inner blower that machine keeps current wind file to run and control the target indoor unit enters high wind file operation, described predetermined until reaching
Duration is restarted into defrosting mode, the four-way valve commutation of the air conditioning multi-couple machine system (1), after making compressor compresses do work
Refrigerant be introduced into the evaporator coils of outdoor unit (2)；After the scheduled duration, the interior wind of the common indoor unit is controlled
The inner blower that organ closed and controlled the target indoor unit is remained operational in high wind file, until defrosting terminates.
10. air conditioning multi-couple machine system according to claim 9, which is characterized in that the processing unit (5) is also used to:
According to the Cumulative Elapsed Time of indoor unit described in every (3), the corresponding Cumulative Elapsed Time is lower than default lower bound
The indoor unit (3) of threshold value is used as the target indoor unit；Or
According to the Cumulative Elapsed Time of indoor unit described in every (3), average operating time is calculated；
The Cumulative Elapsed Time of the indoor unit (3) is compared with the average operating time, to obtain comparison result；
According to the comparison result, the more indoor units (3) are divided into common indoor unit and target indoor unit.
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| CN113661364B (en) * | 2019-04-18 | 2023-03-10 | 三菱电机株式会社 | Control device for air conditioner, outdoor unit, relay unit, heat source unit, and air conditioner |
| CN110107987A (en) * | 2019-04-22 | 2019-08-09 | 珠海格力电器股份有限公司 | Outdoor unit defrosting control method, outdoor unit defrosting control device and air conditioner |
| CN112797570B (en) * | 2020-12-30 | 2022-08-23 | 宁波奥克斯电气股份有限公司 | Defrosting control method, defrosting device and multi-connected air conditioning system |
| DE102021105836A1 (en) * | 2021-03-10 | 2022-09-15 | Viessmann Climate Solutions Se | METHOD, COMPUTER PROGRAM PRODUCT AND SYSTEM FOR MONITORING A HEAT PUMP |
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| CN104019593B (en) * | 2013-02-28 | 2016-06-29 | 广东美的制冷设备有限公司 | The Defrost method of air-conditioning |
| JP2015183898A (en) * | 2014-03-24 | 2015-10-22 | 日立アプライアンス株式会社 | air conditioner |
| CN105202834B (en) * | 2015-09-09 | 2017-12-08 | 广东美的暖通设备有限公司 | Multiple on-line system and its defrosting control method |
| CN105674648B (en) * | 2016-04-01 | 2019-01-18 | 珠海格力电器股份有限公司 | Heating and defrosting control method for multi-split air conditioning system |
| CN106322580A (en) * | 2016-08-16 | 2017-01-11 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method and defrosting control device therefor |
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Effective date of registration: 20200410 Address after: 315000 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Co-patentee after: AUX AIR CONDITIONING Co.,Ltd. Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Address before: 315000 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. |
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