CN109737559A - Air source heat pump, air conditioner, defrosting control method and storage medium - Google Patents
Air source heat pump, air conditioner, defrosting control method and storage medium Download PDFInfo
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- CN109737559A CN109737559A CN201811638667.9A CN201811638667A CN109737559A CN 109737559 A CN109737559 A CN 109737559A CN 201811638667 A CN201811638667 A CN 201811638667A CN 109737559 A CN109737559 A CN 109737559A
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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
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- 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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Abstract
The present invention provides a kind of air source heat pump, air conditioner, defrosting control method and storage mediums；Air source heat pump include memory, processor and storage on a memory and the computer program that can run on a processor, processor is realized when executing computer program: after air source heat pump enters defrost pattern, obtaining the current value of the temperature value of the heat exchanger of air source heat pump and the compressor of air source heat pump；According to the revolving speed of temperature value and the blower of current value adjustment air source heat pump.Apply technical solution provided by the invention; after air source heat pump enters defrost pattern; blower will not be remained turned-off; but according to the revolving speed of heat exchange temperature value and compressor current value adjustment blower; avoid because heat exchanger, pipeline or throttle part it is dirty it is stifled caused by heat exchange is bad causes the failures such as high voltage protective, current protection or exhaust protection; therefore the influence used user is reduced, while reducing the failure rate of air source heat pump, improves the service life of air source heat pump.
Description
Technical field
The present invention relates to technical field of heat pumps, in particular to a kind of air source heat pump, a kind of air conditioner, Yi Zhonghua
White control method and a kind of computer readable storage medium.
Background technique
In general, air conditioner heat pump system is commonly used for the cooling and warming in the four seasons, and when air-conditioning heating, system is by heat
It is transferred to interior from outdoor, outdoor unit heat exchanger is existed as condenser using compressor high-temperature exhaust air as evaporator, indoor unit
Indoor and air heat-exchange condense, and deliver heat to room air, outdoor unit is returned to after throttling set and is changed with outdoor air
It is evaporated after heat.When outdoor unit environment temperature is below the freezing point, the water vapour in outdoor air will be condensed and be tied in evaporator surface
Frost.The frosting of evaporator increases the heat transfer resistance between surface and air, increases flow resistance, so that the sky for passing through evaporator
Throughput is reduced, and heat exchange efficiency is substantially reduced, and causes the heat exchange amount between outdoor environment and refrigerant to decline, leaving air temp declines
Subtract.Especially under some low temperature and high humidity operating conditions, external heat exchanger frosting is more serious, evaporation effect of the refrigerant in external heat exchanger
Fruit is gradually deteriorated, and more liquid refrigerants gradually return in low-pressure tank, and system health deteriorates, and system is caused to be returned when serious
Liquid.Therefore, heat pump system should be arranged condition and take defrosting measure in due course in heating operation.Defrosting mode is frequently with four at present
System is switched to refrigeration mode by port valve commutation, and external heat exchanger is converted to condenser, and interior machine or water tank are converted to evaporator, benefit
The frost of external heat exchanger is melted with the high-temperature gas refrigerant of compressor.
During defrosting, mainstream control mode is that in the process of defrosting, blower is closed at present, is continued until
Defrost terminates.Because the installation environment of air source heat pump system is had nothing in common with each other, service condition variation multiplicity after long-term use, can
Can occur the dirty stifled, pipeline of heat exchanger and throttle part it is dirty it is stifled, ventilation heat exchange condition is bad, coolant leakage, impurity or moisture enter
Etc., and many heat pump product components are simple, low in cost, especially many domestic air source heat pump systems and household is empty
Tune, unit machine etc. only have temperature sensor to can detecte temperature without the detection systems pressure such as pressure sensor on the pipeline of part
Electric current is detected in degree and system electric control part.Blower remains off always during defrost, may result in and high voltage protective, electric current occurs
The failures such as protection, exhaust protection, influence user's use and model machine service life.
Therefore, high voltage protective, current protection, row can be occurred to avoid air source heat pump during defrost by needing one kind at present
The technical solution of the failures such as gas shielded.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the present invention proposes a kind of air source heat pump.
The second aspect of the present invention proposes a kind of air conditioner.
The third aspect of the present invention proposes a kind of defrosting control method.
The fourth aspect of the present invention proposes a kind of computer readable storage medium.
In view of this, the first aspect of the present invention provides a kind of air source heat pump, including memory, processor and storage
On a memory and the computer program that can run on a processor, processor are realized when executing computer program: in air-source
After heat pump enters defrost pattern, the electric current of the temperature value of the heat exchanger of air source heat pump and the compressor of air source heat pump is obtained
Value；According to the revolving speed of temperature value and the blower of current value adjustment air source heat pump.
In the technical scheme, after air source heat pump enters defrost pattern, the temperature of the heat exchanger of air source heat pump is obtained
Angle value, and obtain the current value of the compressor of air source heat pump.And air-source is adjusted according to the temperature value and current value got
The revolving speed of the blower of heat pump.Apply technical solution provided by the invention, after air source heat pump enters defrost pattern, Bu Huibao
Closing blower is held, but according to the revolving speed of heat exchange temperature value and compressor current value adjustment blower, it avoids because of heat exchanger, pipeline
Or throttle part it is dirty it is stifled caused by heat exchange is bad causes the failures such as high voltage protective, current protection or exhaust protection, therefore reduce pair
The influence that user uses, while the failure rate of air source heat pump is reduced, improve the service life of air source heat pump.
Specifically, corresponding temperature-detecting device is set in the middle part of heat exchanger, and the middle portion temperature for detecting heat exchanger, which is used as, to be changed
The temperature value of hot device, while passing through current value of the master control borad detection system electric current as compressor.In air source heat pump entrance
After controlling four-way valve changing flow direction, the revolving speed of blower is adjusted according to temperature value and the current value dynamic detected for white mode, until
The condition for meeting defrost completion, exits signal according to defrost and exits defrost pattern.
In addition, the air source heat pump in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, further, it realizes when processor executes computer program according to temperature value and electric current
The step of revolving speed of the blower of value adjustment air source heat pump, specifically: judge whether temperature value is greater than temperature threshold, and judges electricity
Whether flow valuve is greater than current threshold；When detecting that temperature value is greater than temperature threshold and/or current value is greater than current threshold, control
The revolving speed of blower increases by the first preset rotation speed value.
In the technical scheme, it first determines whether the temperature value of heat exchanger is greater than temperature threshold, while judging current value
Whether current threshold is greater than；If temperature value is greater than temperature threshold and current value is greater than any of two conditions of current threshold
Condition is satisfied, i.e. the revolving speed of control blower increases by the first preset rotation speed value, and after rotation speed of fan increase, heat exchange temperature can be
Relative reduction under the action of blower, at the same the current value of compressor also can relative reduction, avoid since compressor current is excessively high
Caused current protection, or due to failures such as the excessively high caused high voltage protective of heat exchange temperature and exhaust protections, reduce air
The failure rate of source heat pump improves the service life of air source heat pump.
In any of the above-described technical solution, further, processor realize when executing computer program according to temperature value and
Current value adjust air source heat pump blower revolving speed the step of, further includes: judge temperature value whether be less than temperature threshold in advance
If the difference of temperature value, and judge whether current value is less than the difference of current threshold and pre-set current value；When detecting that temperature value is less than
The difference of temperature threshold and preset temperature value, and current value is less than the difference of current threshold and pre-set current value, controls the revolving speed of blower
Reduce the second preset rotation speed value.
In the technical scheme, if heat exchange temperature value is less than the difference of temperature threshold and preset temperature value, and compressor
When current value is less than the difference of current threshold and pre-set current value, illustrate that air source heat pump will not occur current protection, height at this time
The risk of the failures such as pressure protection or exhaust protection, therefore the revolving speed for controlling current blower reduces the second preset rotation speed value, Ke Yiti
The defrost efficiency of high air source heat pump reduces defrost duration.
In any of the above-described technical solution, further, after entering defrost pattern, obtains and update according to predeterminated frequency
Temperature value and current value.
In the technical scheme, the temperature value of heat exchanger and the current value of compressor are obtained and updated according to predeterminated frequency,
I.e. according to after the revolving speed of heat exchange temperature value and compressor current value adjustment blower, at least maintenance blower is with revolving speed adjusted
Continuous service duration corresponding with predeterminated frequency, to guarantee being not in current protection, high voltage protective or exhaust protection, and meanwhile it is every
Interval preset duration obtains and updates temperature value and current value, can effectively avoid because caused transient current is fluctuated in system operation
Peak valley or heat exchange temperature influence of fluctuations control effect caused by receiving external environment and influencing, guarantee system operation stability and can
By property.
In any of the above-described technical solution, further, is realized when processor executes computer program and state acquisition heat exchange
Before the step of current value of the temperature value of device and compressor, further includes: receive defrosting control signal；Believed according to defrosting control
Number control four-way valve executes commutation, and the revolving speed for controlling blower is adjusted to 0 by working speed, with into defrost pattern.
In the technical scheme, the processor of air source heat pump receives defrosting control signal, and according to the defrost received
Control signal enters defrost pattern.Specifically, air source heat pump controls four-way valve according to defrosting control signal first and executes commutation,
The revolving speed for controlling blower simultaneously is adjusted to 0 by current working speed, is 0 as initial speed using rotation speed of fan and enters defrost mould
Formula.
In any of the above-described technical solution, further, processor is realized when executing computer program: receiving defrost terminates
Signal；Four-way valve is controlled according to defrost end signal and executes commutation again, and the revolving speed for controlling blower is adjusted to working speed, with
Exit defrost pattern.
In the technical scheme, the processor of air source heat pump receives defrost end signal, and according to the defrost received
End signal exits defrost pattern.Specifically, air source heat pump controls four-way valve according to defrost end signal first and executes again
Commutation, and the current rotating speed for controlling blower restores to defrost the working speed before starting, air source heat pump reverts to entrance at this time
Working condition before defrost pattern.
The second aspect of the present invention provides a kind of air conditioner, and air conditioner includes as described in any of the above-described technical solution
Air source heat pump, therefore, the air conditioner include the air source heat pump as described in any of the above-described technical solution all beneficial to effect
Fruit.
The third aspect of the present invention provides a kind of defrosting control method, for the air in such as any of the above-described technical solution
Source heat pump, defrosting control method include: the temperature that the heat exchanger of air source heat pump is obtained after air source heat pump enters defrost pattern
The current value of the compressor of angle value and air source heat pump；According to turning for the blower of temperature value and current value adjustment air source heat pump
Speed.
In the technical scheme, after air source heat pump enters defrost pattern, the temperature of the heat exchanger of air source heat pump is obtained
Angle value, and obtain the current value of the compressor of air source heat pump.And air-source is adjusted according to the temperature value and current value got
The revolving speed of the blower of heat pump.Apply technical solution provided by the invention, after air source heat pump enters defrost pattern, Bu Huibao
Closing blower is held, but according to the revolving speed of heat exchange temperature value and compressor current value adjustment blower, it avoids because of heat exchanger, pipeline
Or throttle part it is dirty it is stifled caused by heat exchange is bad causes the failures such as high voltage protective, current protection or exhaust protection, therefore reduce pair
The influence that user uses, while the failure rate of air source heat pump is reduced, improve the service life of air source heat pump.
In the above-mentioned technical solutions, further, turned according to the blower of temperature value and current value adjustment air source heat pump
The step of speed, specifically: judge whether temperature value is greater than temperature threshold, and judges whether current value is greater than current threshold；Work as inspection
It measures temperature value and is greater than current threshold greater than temperature threshold and/or current value, the revolving speed for controlling blower increases by the first preset rotation speed
Value.
In the technical scheme, it first determines whether the temperature value of heat exchanger is greater than temperature threshold, while judging current value
Whether current threshold is greater than；If temperature value is greater than temperature threshold and current value is greater than any of two conditions of current threshold
Condition is satisfied, i.e. the revolving speed of control blower increases by the first preset rotation speed value, and after rotation speed of fan increase, heat exchange temperature can be
Relative reduction under the action of blower, at the same the current value of compressor also can relative reduction, avoid since compressor current is excessively high
Caused current protection, or due to failures such as the excessively high caused high voltage protective of heat exchange temperature and exhaust protections, reduce air
The failure rate of source heat pump improves the service life of air source heat pump.
In any of the above-described technical solution, further, according to the blower of temperature value and current value adjustment air source heat pump
Revolving speed the step of, further includes: judge whether temperature value is less than the difference of temperature threshold and preset temperature value, and judge that current value is
The no difference less than current threshold and pre-set current value；When detect temperature value be less than temperature threshold and preset temperature value difference, and
Current value is less than the difference of current threshold and pre-set current value, and the revolving speed for controlling blower reduces the second preset rotation speed value.
In the technical scheme, if heat exchange temperature value is less than the difference of temperature threshold and preset temperature value, and compressor
When current value is less than the difference of current threshold and pre-set current value, illustrate that air source heat pump will not occur current protection, height at this time
The risk of the failures such as pressure protection or exhaust protection, therefore the revolving speed for controlling current blower reduces the second preset rotation speed value, Ke Yiti
The defrost efficiency of high air source heat pump reduces defrost duration.
In any of the above-described technical solution, further, after entering defrost pattern, obtains and update according to predeterminated frequency
Temperature value and current value.
In the technical scheme, the temperature value of heat exchanger and the current value of compressor are obtained and updated according to predeterminated frequency,
I.e. according to after the revolving speed of heat exchange temperature value and compressor current value adjustment blower, at least maintenance blower is with revolving speed adjusted
Continuous service duration corresponding with predeterminated frequency, to guarantee being not in current protection, high voltage protective or exhaust protection, and meanwhile it is every
Interval preset duration obtains and updates temperature value and current value, can effectively avoid because caused transient current is fluctuated in system operation
Peak valley or heat exchange temperature influence of fluctuations control effect caused by receiving external environment and influencing, guarantee system operation stability and can
By property.
In any of the above-described technical solution, further, in the temperature value and sky of the heat exchanger for obtaining air source heat pump
Before the step of current value of the compressor of air supply heat pump, defrosting control method further include: receive defrosting control signal；According to change
Frost control signal control four-way valve executes commutation, and the revolving speed for controlling blower is adjusted to 0 by working speed, to enter defrost mould
Formula.
In the technical scheme, the processor of air source heat pump receives defrosting control signal, and according to the defrost received
Control signal enters defrost pattern.Specifically, air source heat pump controls four-way valve according to defrosting control signal first and executes commutation,
The revolving speed for controlling blower simultaneously is adjusted to 0 by current working speed, is 0 as initial speed using rotation speed of fan and enters defrost mould
Formula.
In any of the above-described technical solution, further, defrosting control method further include: receive defrost end signal；Root
Commutation is executed again according to defrost end signal control four-way valve, and the revolving speed for controlling blower is adjusted to working speed, with exiting
White mode.
In the technical scheme, the processor of air source heat pump receives defrost end signal, and according to the defrost received
End signal exits defrost pattern.Specifically, air source heat pump controls four-way valve according to defrost end signal first and executes again
Commutation, and the current rotating speed for controlling blower restores to defrost the working speed before starting, air source heat pump reverts to entrance at this time
Working condition before defrost pattern.
The fourth aspect of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, meter
The defrosting control method as described in any of the above-described technical solution, therefore, the calculating are realized when calculation machine program is executed by processor
Machine readable storage medium storing program for executing includes whole beneficial effects of the defrosting control method as described in any of the above-described technical solution.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural block diagram of air source heat pump according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of air source heat pump according to an embodiment of the invention；
Fig. 3 shows the flow chart of defrosting control method according to an embodiment of the invention；
Fig. 4 shows the flow chart of defrosting control method according to another embodiment of the invention；
Fig. 5 shows the flow chart of the defrosting control method of still another embodiment in accordance with the present invention；
Fig. 6 shows the flow chart of defrosting control method according to still another embodiment of the invention；
Fig. 7 shows the flow chart of defrosting control method according to still another embodiment of the invention；
Fig. 8 shows the flow chart of defrosting control method according to still another embodiment of the invention.
Wherein, the appended drawing reference in Fig. 1 and the corresponding relationship between component names are as follows:
2 compressors, 4 four-way valves, 6 electric expansion valves, 8 heat exchangers.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
A kind of air source heat pump described according to some embodiments of the invention, a kind of air-conditioning are described referring to Fig. 1 to Fig. 8
Device, a kind of defrosting control method and a kind of storage medium.
As depicted in figs. 1 and 2, in the embodiment of first aspect present invention, a kind of air source heat pump 100 is provided, is wrapped
It includes memory 102, processor 104 and is stored in the computer program that can be run on memory 102 and on processor 104, locate
Reason device 104 is realized when executing computer program: after air source heat pump enters defrost pattern, obtaining the heat exchanger of air source heat pump
Temperature value and air source heat pump compressor current value；According to the blower of temperature value and current value adjustment air source heat pump
Revolving speed.
In this embodiment, after air source heat pump enters defrost pattern, the temperature of the heat exchanger of air source heat pump is obtained
Value, and obtain the current value of the compressor of air source heat pump.And according to temperature value and current value the adjustment air-source heat got
The revolving speed of the blower of pump.Technical solution provided by the invention is applied, enters defrost pattern in air source heat pump, four-way valve 4 is held
After row commutation, blower will not be remained turned-off, but turning for blower is adjusted according to the current value of heat exchange temperature value and compressor 2
Speed, avoid because heat exchanger 8, pipeline or electric expansion valve 6 it is dirty it is stifled caused by heat exchange is bad causes high voltage protective, current protection or row
The failures such as gas shielded, therefore the influence used user is reduced, while reducing the failure rate of air source heat pump, improve air
The service life of source heat pump.
Specifically, corresponding temperature-detecting device is set in the middle part of heat exchanger, and the middle portion temperature for detecting heat exchanger, which is used as, to be changed
The temperature value of hot device, while passing through current value of the master control borad detection system electric current as compressor.In air source heat pump entrance
After controlling four-way valve changing flow direction, the revolving speed of blower is adjusted according to temperature value and the current value dynamic detected for white mode, until
The condition for meeting defrost completion, exits signal according to defrost and exits defrost pattern.
In one embodiment of the invention, further, it realizes when processor executes computer program according to temperature value
The step of adjusting the revolving speed of the blower of air source heat pump with current value, specifically: judge whether temperature value is greater than temperature threshold, and
Judge whether current value is greater than current threshold；When detecting that temperature value is greater than temperature threshold and/or current value and is greater than current threshold
Value, the revolving speed for controlling blower increase by the first preset rotation speed value.
In this embodiment, it first determines whether the temperature value of heat exchanger is greater than temperature threshold, while judging that current value is
It is no to be greater than current threshold；If temperature value is greater than temperature threshold and current value is greater than any of two conditions of current threshold item
Part is satisfied, i.e. the revolving speed of control blower increases by the first preset rotation speed value, and after rotation speed of fan increase, heat exchange temperature can be in wind
Relative reduction under the action of machine, at the same the current value of compressor also can relative reduction, avoid and led since compressor current is excessively high
The current protection of cause, or due to failures such as the excessively high caused high voltage protective of heat exchange temperature and exhaust protections, reduce air-source
The failure rate of heat pump improves the service life of air source heat pump.
In one embodiment of the invention, further, it realizes when processor executes computer program according to temperature value
With current value adjustment air source heat pump blower revolving speed the step of, further includes: judge temperature value whether be less than temperature threshold and
The difference of preset temperature value, and judge whether current value is less than the difference of current threshold and pre-set current value；When detecting that temperature value is small
In the difference of temperature threshold and preset temperature value, and current value is less than the difference of current threshold and pre-set current value, controls turning for blower
Speed reduces the second preset rotation speed value.
In this embodiment, it if heat exchange temperature value is less than the difference of temperature threshold and preset temperature value, and compresses electromechanical
When flow valuve is less than the difference of current threshold and pre-set current value, illustrate that air source heat pump will not occur current protection, high pressure at this time
The risk of the failures such as protection or exhaust protection, therefore the revolving speed for controlling current blower reduces the second preset rotation speed value, can be improved
The defrost efficiency of air source heat pump reduces defrost duration.
In one embodiment of the invention, further, after entering defrost pattern, according to predeterminated frequency acquisition and more
New temperature value and current value.
In this embodiment, it is obtained according to predeterminated frequency and updates the temperature value of heat exchanger and the current value of compressor, i.e.,
According to after the revolving speed of heat exchange temperature value and compressor current value adjustment blower, at least maintenance blower is held with revolving speed adjusted
Reforwarding row duration corresponding with predeterminated frequency, to guarantee being not in current protection, high voltage protective or exhaust protection, while every
Temperature value and current value are obtained and updated every preset duration, can effectively avoid because caused transient current peak is fluctuated in system operation
Paddy or heat exchange temperature influence of fluctuations control effect caused by receiving external environment and influencing guarantee the stability of system operation and reliable
Property.
In one embodiment of the invention, further, realize that stating acquisition changes when processor executes computer program
Before the step of current value of the temperature value of hot device and compressor, further includes: receive defrosting control signal；According to defrosting control
Signal control four-way valve executes commutation, and the revolving speed for controlling blower is adjusted to 0 by working speed, to enter defrost pattern.
In this embodiment, the processor of air source heat pump receives defrosting control signal, and according to the defrost control received
Signal processed enters defrost pattern.Specifically, air source heat pump controls four-way valve according to defrosting control signal first and executes commutation, together
When control blower revolving speed be adjusted to 0 by current working speed, be 0 as initial speed to enter defrost mould using rotation speed of fan
Formula.
In one embodiment of the invention, further, it is realized when processor executes computer program: receiving defrost knot
Beam signal；Four-way valve is controlled according to defrost end signal and executes commutation again, and the revolving speed for controlling blower is adjusted to working speed,
To exit defrost pattern.
In this embodiment, the processor of air source heat pump receives defrost end signal, and according to the defrost knot received
Beam signal exits defrost pattern.Specifically, air source heat pump executes again according to defrost end signal control four-way valve change first
To, and the current rotating speed for controlling blower restores to defrost the working speed before starting, air source heat pump reverts to entranceization at this time
Working condition before white mode.
In one embodiment of the invention, further, as shown in Fig. 2, air source heat pump system, is running on refrigeration
When mode, the high temperature and pressure refrigerant of compressor discharge enters heat exchanger through four-way valve and is condensed, then throttles through electric expansion valve
Enter the room afterwards machine or it is other need the heat exchange equipment that freezes to carry out heat exchange evaporation after, turn again to compressor.Running on system
When hot, the high temperature and pressure refrigerant of compressor discharge be directly entered indoor unit, water tank or it is other need the heat exchange equipment that heats into
After row condensation, then external heat exchanger heat absorption evaporation is returned to after electric expansion valve (or other throttling sets) throttling, then through four-way valve
Compressor is returned to, is so recycled.Wherein Tp is the delivery temperature that exhaust outlet of compressor detects, T3 is heat exchanger middle portion temperature,
T4 is environment temperature.
In the embodiment of second aspect of the present invention, a kind of air conditioner is provided, air conditioner includes such as any of the above-described implementation
Air source heat pump described in example, therefore, which includes the complete of the air source heat pump as described in above-mentioned any embodiment
Portion's beneficial effect.
As shown in figure 3, a kind of defrosting control method has been supplied in the embodiment of third aspect present invention, for such as above-mentioned
Air source heat pump in any embodiment, defrosting control method include: after air source heat pump enters defrost pattern,
S302 obtains the current value of the temperature value of the heat exchanger of air source heat pump and the compressor of air source heat pump；
S304, according to the revolving speed of temperature value and the blower of current value adjustment air source heat pump.
In this embodiment, after air source heat pump enters defrost pattern, the temperature of the heat exchanger of air source heat pump is obtained
Value, and obtain the current value of the compressor of air source heat pump.And according to temperature value and current value the adjustment air-source heat got
The revolving speed of the blower of pump.Technical solution provided by the invention is applied, after air source heat pump enters defrost pattern, will not be kept
Close blower, but according to heat exchange temperature value and compressor current value adjustment blower revolving speed, avoid because heat exchanger, pipeline or
Throttle part it is dirty it is stifled caused by heat exchange is bad causes the failures such as high voltage protective, current protection or exhaust protection, therefore reduce to
The influence that family uses, while the failure rate of air source heat pump is reduced, improve the service life of air source heat pump.
In one embodiment of the invention, further, as shown in figure 4, defrosting control method includes: in air-source heat
After pump enters defrost pattern,
S402 obtains the current value of the temperature value of the heat exchanger of air source heat pump and the compressor of air source heat pump；
S404 judges whether temperature value is greater than temperature threshold or whether current value is greater than current threshold；When judging that structure is
When being, into S406；When the judgment result is no, S402 is returned；
S406, the revolving speed for controlling blower increase by the first preset rotation speed value.
In this embodiment, it first determines whether the temperature value of heat exchanger is greater than temperature threshold, while judging that current value is
It is no to be greater than current threshold；If temperature value is greater than temperature threshold and current value is greater than any of two conditions of current threshold item
Part is satisfied, i.e. the revolving speed of control blower increases by the first preset rotation speed value, and after rotation speed of fan increase, heat exchange temperature can be in wind
Relative reduction under the action of machine, at the same the current value of compressor also can relative reduction, avoid and led since compressor current is excessively high
The current protection of cause, or due to failures such as the excessively high caused high voltage protective of heat exchange temperature and exhaust protections, reduce air-source
The failure rate of heat pump improves the service life of air source heat pump.
In one embodiment of the invention, further, as shown in figure 5, defrosting control method includes: in air-source heat
After pump enters defrost pattern,
S502 obtains the current value of the temperature value of the heat exchanger of air source heat pump and the compressor of air source heat pump；
S504 judges whether temperature value is less than the difference of temperature threshold and preset temperature value and whether current value is less than current threshold
The difference of value and pre-set current value；When judging structure to be, into S506；
S506, the revolving speed for controlling blower reduce the second preset rotation speed value.
In this embodiment, it if heat exchange temperature value is less than the difference of temperature threshold and preset temperature value, and compresses electromechanical
When flow valuve is less than the difference of current threshold and pre-set current value, illustrate that air source heat pump will not occur current protection, high pressure at this time
The risk of the failures such as protection or exhaust protection, therefore the revolving speed for controlling current blower reduces the second preset rotation speed value, can be improved
The defrost efficiency of air source heat pump reduces defrost duration.
In one embodiment of the invention, further, after entering defrost pattern, according to predeterminated frequency acquisition and more
New temperature value and current value.
In this embodiment, it is obtained according to predeterminated frequency and updates the temperature value of heat exchanger and the current value of compressor, i.e.,
According to after the revolving speed of heat exchange temperature value and compressor current value adjustment blower, at least maintenance blower is held with revolving speed adjusted
Reforwarding row duration corresponding with predeterminated frequency, to guarantee being not in current protection, high voltage protective or exhaust protection, while every
Temperature value and current value are obtained and updated every preset duration, can effectively avoid because caused transient current peak is fluctuated in system operation
Paddy or heat exchange temperature influence of fluctuations control effect caused by receiving external environment and influencing guarantee the stability of system operation and reliable
Property.
In one embodiment of the invention, further, as shown in fig. 6, obtaining the heat exchanger of air source heat pump
Before the step of current value of the compressor of temperature value and air source heat pump, defrosting control method further include:
S602 receives defrosting control signal；
S604 controls four-way valve according to defrosting control signal and executes commutation, and controls the revolving speed of blower by working speed tune
Whole is 0, to enter defrost pattern.
In this embodiment, the processor of air source heat pump receives defrosting control signal, and according to the defrost control received
Signal processed enters defrost pattern.Specifically, air source heat pump controls four-way valve according to defrosting control signal first and executes commutation, together
When control blower revolving speed be adjusted to 0 by current working speed, be 0 as initial speed to enter defrost mould using rotation speed of fan
Formula.
In one embodiment of the invention, further, as shown in fig. 7, defrosting control method further include:
S702 receives defrost end signal；
S704 controls four-way valve according to defrost end signal and executes commutation again, and the revolving speed for controlling blower is adjusted to work
Make revolving speed, to exit defrost pattern.
In this embodiment, the processor of air source heat pump receives defrost end signal, and according to the defrost knot received
Beam signal exits defrost pattern.Specifically, air source heat pump executes again according to defrost end signal control four-way valve change first
To, and the current rotating speed for controlling blower restores to defrost the working speed before starting, air source heat pump reverts to entranceization at this time
Working condition before white mode.
In one embodiment of the invention, further, as shown in figure 8, air source heat pump system mainly includes outdoor
Machine, water tank (or other indoor heat exchange equipments), control system.When air-conditioning system detects defrosting signal, system four-way valve is cut
Swap-in enters defrost pattern, and adjustment blower revolution is 0.At this time detect air source heat pump system in, the middle portion temperature T3 of heat exchanger and
The electric current I of compressor.If meeting T3 >=a or I >=b, and being not received by defrost and exit signal, then blower revolution increases m and turns, and
At least duration t seconds.If not satisfied, then blower continues to the state that revolving speed is 0.After continue to test T3, I, if after t seconds still
Meet T3 >=a or I >=b, then blower revolution continues growing and continues t seconds again, until blower maximum revolution.If detecting T3, I
Reduce, until meeting T3 < a-k and I <b-r, then in order to guarantee defrost speed, reduces the defrost time, blower revolution reduces n and turns.If
It is all unsatisfactory for conditions above, then blower revolution remains unchanged.So circulation.Period, if whenever expiring the item that defrost terminates
Part, system receive defrost and exit signal, then stop defrost, and four-way valve switches again, and control blower restores the windscreen before defrost,
And control is adjusted again.Wherein the parameters such as a, b, k, r can be configured according to system configuration and operating status.
Specifically, control flow is as follows:
S802 receives defrosting signal；
S804, control four-way valve commutation, control rotation speed of fan Fan is 0；
S806 detects heat exchanger middle portion temperature T3 and compressor current I；
S808 determines T3 >=a or I >=b；
S810, control rotation speed of fan Fan increases m, and continues at least t seconds；
S812 judges whether that receiving defrost exits information；If not, into S814；If so, into S818；
S814 determines T3 < a-k, and I < b-r；
S816, control rotation speed of fan Fan reduces n, and maintains current rotating speed；
S818, four-way Vavle switching, control rotation speed of fan restore the revolving speed to defrost.
In the embodiment of the fourth aspect of the present invention, a kind of computer readable storage medium is provided, is stored thereon with
Computer program realizes the defrosting control method as described in above-mentioned any embodiment when computer program is executed by processor,
Therefore, which includes the defrosting control method as described in above-mentioned any embodiment all beneficial to effect
Fruit.
In description of the invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be merely for convenience of retouching based on orientation or positional relationship described in attached drawing
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of air source heat pump, which is characterized in that the air source heat pump includes memory, processor and is stored in described deposit
On reservoir and the computer program that can run on the processor, the processor are realized when executing the computer program:
After the air source heat pump enters defrost pattern, the temperature value of the heat exchanger of the air source heat pump and described is obtained
The current value of the compressor of air source heat pump；
The revolving speed of the blower of the air source heat pump is adjusted according to the temperature value and the current value.
2. air source heat pump according to claim 1, which is characterized in that when the processor executes the computer program
The step of realizing the revolving speed of the blower that the air source heat pump is adjusted according to the temperature value and the current value, specifically
Are as follows:
Judge whether the temperature value is greater than temperature threshold, and judges whether the current value is greater than current threshold；
When detecting that the temperature value is greater than the temperature threshold and/or the current value is greater than the current threshold, institute is controlled
The revolving speed for stating blower increases by the first preset rotation speed value.
3. air source heat pump according to claim 2, which is characterized in that when the processor executes the computer program
The step of realizing the revolving speed of the blower for adjusting the air source heat pump according to the temperature value and the current value, also wraps
It includes:
Judge whether the temperature value is less than the difference of the temperature threshold and preset temperature value, and judges whether the current value is small
In the difference of the current threshold and pre-set current value；
When detect the temperature value be less than the temperature threshold and preset temperature value difference, and the current value be less than the electricity
The difference for flowing threshold value and pre-set current value, the revolving speed for controlling the blower reduce the second preset rotation speed value.
4. air source heat pump according to claim 3, which is characterized in that after entering the defrost pattern, according to default
Frequency acquisition simultaneously updates the temperature value and the current value.
5. air source heat pump according to any one of claim 1 to 4, which is characterized in that execute institute in the processor
Before realizing the step of stating the current value of the temperature value and the compressor that obtain the heat exchanger when stating computer program, also
Include:
Receive defrosting control signal；
Four-way valve is controlled according to the defrosting control signal and executes commutation, and the revolving speed for controlling the blower is adjusted by working speed
It is 0, to enter the defrost pattern.
6. air source heat pump according to claim 5, which is characterized in that when the processor executes the computer program
It realizes:
Receive defrost end signal；
The four-way valve is controlled according to the defrost end signal and executes commutation again, and the revolving speed for controlling the blower is adjusted to
The working speed, to exit the defrost pattern.
7. a kind of air conditioner, which is characterized in that the air conditioner includes such as air-source described in any one of claims 1 to 6
Heat pump.
8. a kind of defrosting control method, for such as air source heat pump described in any one of claims 1 to 6, which is characterized in that
The defrosting method includes:
After the air source heat pump enters defrost pattern, the temperature value of the heat exchanger of the air source heat pump and described is obtained
The current value of the compressor of air source heat pump；
The revolving speed of the blower of the air source heat pump is adjusted according to the temperature value and the current value.
9. defrosting control method according to claim 8, which is characterized in that described according to the temperature value and the electric current
Value adjusts the step of revolving speed of the blower of the air source heat pump, specifically:
Judge whether the temperature value is greater than temperature threshold, and judges whether the current value is greater than current threshold；
When detecting that the temperature value is greater than the temperature threshold and/or the current value is greater than the current threshold, institute is controlled
The revolving speed for stating blower increases by the first preset rotation speed value.
10. defrosting control method according to claim 9, which is characterized in that described according to the temperature value and the electricity
Flow valuve adjusts the step of revolving speed of the blower of the air source heat pump, further includes:
Judge whether the temperature value is less than the difference of the temperature threshold and preset temperature value, and judges whether the current value is small
In the difference of the current threshold and pre-set current value；
When detect the temperature value be less than the temperature threshold and preset temperature value difference, and the current value be less than the electricity
The difference for flowing threshold value and pre-set current value, the revolving speed for controlling the blower reduce the second preset rotation speed value.
11. defrosting control method according to claim 10, which is characterized in that after entering the defrost pattern, according to
Predeterminated frequency obtains and updates the temperature value and the current value.
12. the defrosting control method according to any one of claim 8 to 11, which is characterized in that described in the acquisition
Before the step of current value of the compressor of the temperature value of the heat exchanger of air source heat pump and the air source heat pump, describedization
White control method further include:
Receive defrosting control signal；
Four-way valve is controlled according to the defrosting control signal and executes commutation, and the revolving speed for controlling the blower is adjusted by working speed
It is 0, to enter the defrost pattern.
13. defrosting control method according to claim 12, which is characterized in that further include:
Receive defrost end signal；
The four-way valve is controlled according to the defrost end signal and executes commutation again, and the revolving speed for controlling the blower is adjusted to
The working speed, to exit the defrost pattern.
14. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The defrosting control method as described in any one of claim 8 to 13 is realized when being executed by processor.
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| CN201811638667.9A CN109737559B (en) | 2018-12-29 | 2018-12-29 | Air source heat pump, air conditioner, defrosting control method and storage medium |
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| CN110425686A (en) * | 2019-08-09 | 2019-11-08 | 珠海格力电器股份有限公司 | Defrosting control method for air-cooled module unit, computer device and computer readable storage medium |
| CN111156660A (en) * | 2020-01-02 | 2020-05-15 | 珠海格力电器股份有限公司 | Defrosting control method for heat pump water heater system, storage medium and air conditioner |
| CN111238000A (en) * | 2020-02-22 | 2020-06-05 | 珠海格力电器股份有限公司 | Automatic air speed control method and system for air conditioner and air conditioner |
| CN111457540A (en) * | 2020-04-16 | 2020-07-28 | 宁波奥克斯电气股份有限公司 | A kind of outdoor fan control method, device and air conditioner |
| CN112254290A (en) * | 2020-09-18 | 2021-01-22 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner fan and air conditioner |
| CN112344622A (en) * | 2020-11-06 | 2021-02-09 | 中山市爱美泰电器有限公司 | Intelligent defrosting device of heat pump system and control method thereof |
| CN112519532A (en) * | 2020-12-02 | 2021-03-19 | 安徽江淮汽车集团股份有限公司 | Heat pump system diagnosis control method and device |
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| CN112519532A (en) * | 2020-12-02 | 2021-03-19 | 安徽江淮汽车集团股份有限公司 | Heat pump system diagnosis control method and device |
| CN115992988A (en) * | 2022-11-28 | 2023-04-21 | 珠海格力电器股份有限公司 | Exhaust control method, device, equipment and medium of portable air conditioner compressor |
| CN115992988B (en) * | 2022-11-28 | 2024-05-28 | 珠海格力电器股份有限公司 | Exhaust control method, device, equipment and medium of portable air conditioner compressor |
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