CN110332654A - Air conditioning system and defrosting control method thereof - Google Patents
Air conditioning system and defrosting control method thereof Download PDFInfo
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- CN110332654A CN110332654A CN201910623056.5A CN201910623056A CN110332654A CN 110332654 A CN110332654 A CN 110332654A CN 201910623056 A CN201910623056 A CN 201910623056A CN 110332654 A CN110332654 A CN 110332654A
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- heat exchange
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 98
- 238000010257 thawing Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 73
- 230000008859 change Effects 0.000 claims description 36
- 230000005764 inhibitory process Effects 0.000 claims description 16
- 230000007423 decrease Effects 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 6
- 241000208340 Araliaceae Species 0.000 claims 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 2
- 235000008434 ginseng Nutrition 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air conditioning system defrosting control method and an air conditioning system, wherein the air conditioning system defrosting control method comprises the following steps: acquiring a defrosting mark parameter; when the defrosting mark parameter meets the starting requirement of the first defrosting mode, controlling the air conditioning system to be in the first defrosting mode; acquiring a fan reversal mark parameter; and when the fan reverse rotation mark parameter meets the fan starting requirement, controlling the fan in the air conditioner outdoor unit to rotate reversely. According to the defrosting control method for the air conditioner outdoor unit, the fan rotates in a steering mode to quickly bring the condensed water out of the outdoor unit, so that the drainage speed is increased, the defrosting period is effectively shortened, and the temperature attenuation in a room caused by the defrosting process is effectively relieved.
Description
Technical field
The present invention relates to air conditioner controlling technology fields, more particularly to a kind of air-conditioning system and air-conditioning system defrosting control side
Method.
Background technique
With advances in technology with society development, air-conditioning system have been widely used for people production with life in, with
The temperature of indoor environment is maintained at optimum range.Air-conditioning system generally includes the structures such as compressor, indoor unit, outdoor unit, when
When air-conditioning system is in heating mode, the refrigerant by compressor compresses enters the room machine liquidation exothermic reaction to improve indoor environment temperature
Degree eventually passes back to re-start compression in compressor subsequently into outdoor unit to absorb the heat of outdoor environment with evaporation of absorbing heat.
And when outdoor temperature is lower, the heat exchanger easily frosting of the outdoor unit in heat absorption evaporating state, to influence air-conditioning system
Normal operation.
The defrost mode of existing air-conditioning system, the main method using mode conversion, i.e., be changed into refrigeration mould for heating
Formula, so that the frost on the heat exchanger of outdoor unit is changed into liquid water using high temperature liquid refrigerant, liquid water is made in gravity
With flowing down to tray bottom until outside exclusion machine, to guarantee the normal operation of air-conditioning system.But using above-mentioned defrost side
The velocity of discharge of case, condensed water is slow, to cause defrost overlong time, influences the comfort level of user.
Summary of the invention
Based on this, it is necessary to be directed to air-conditioning system defrost time longer problem, provide a kind of air-conditioning system and air-conditioning system
System defrosting control method.
A kind of air-conditioning system defrosting control method, comprising the following steps:
Obtain defrost flag parameter；
When the defrost flag parameter, which meets the starting of the first defrost pattern, to be required, control air-conditioning system is in the first defrost
Mode；
It obtains blower and inverts flag parameter；
When blower reversion flag parameter, which meets blower reversion starting, to be required, the blower of the air-conditioner outdoor unit is controlled
It rotates backward.
Above-mentioned air-conditioner outdoor unit defrosting control method, blower fan turning rotation can quickly take condensed water outside outdoor unit out of, because
This accelerates drainage speed, to effectively shorten the defrost period, and then increases the heating duration of air-conditioning system, is effectively relieved
Because of the decaying of temperature in room caused by defrost process.
The air-conditioner outdoor unit includes heat exchange module in one of the embodiments,；When the air-conditioning system is in first
When defrost pattern, the heat exchange module is in heat release state.
In one of the embodiments, when blower reversion flag parameter meets blower reversal requirement, described in control
It is further comprising the steps of after the step of blower of air-conditioner outdoor unit rotates backward:
Obtain the temperature of the heat exchange module；
When the constant temperature of the heat exchange module continues greater than the first preset temperature, and greater than first preset temperature
When duration reaches the first default defrost and terminates duration, controlling the air-conditioning system terminates first defrost pattern, the blower
Stopping rotates backward and the heat exchange module is in heat absorption state.
The blower reversion flag parameter includes the temperature of the heat exchange module, the sky in one of the embodiments,
At least one in the high pressure saturation temperature and delivery temperature of adjusting system and the defrost duration in heat exchange module described in defrost state
Person；
When the temperature of the heat exchange module is greater than the first default heat exchange module temperature, the high pressure saturation temperature greater than default
High pressure saturation temperature, the delivery temperature are greater than default delivery temperature and the defrost duration is greater than or equal to the first defaultization
When at least one of white duration is set up, the blower reversion flag parameter meets blower reversion starting and requires.
The air-conditioner outdoor unit further includes heating module in one of the embodiments,；When the blower rotates backward,
The heating module is in heated condition.
In one of the embodiments, when the defrost flag parameter, which meets the starting of the first defrost pattern, to be required, control
Air-conditioning system be in the step of the first defrost pattern specifically includes the following steps:
When the defrost flag parameter, which meets the starting of the first defrost pattern, to be required, controls the heating module and be in heating
State；
When the duration that the heating module is in heated condition is more than default heating duration, control at the air-conditioning system
In first defrost pattern.
The defrost flag parameter includes the high-pressure decaying speed of the air-conditioning system in one of the embodiments,
At least one of degree, the low pressure rate of decay and delivery temperature rate of decay；
When the high-pressure rate of decay is greater than the first preset high-pressure decline of pressure speed, low pressure decaying speed
Degree is greater than the first low pressure rate of decay and the delivery temperature rate of decay is greater than the first default delivery temperature decaying speed
When at least one of degree is set up, the defrost flag parameter meets the first defrost pattern starting and requires.
It is further comprising the steps of after the step of obtaining defrost flag parameter in one of the embodiments:
When the defrost flag parameter, which meets the starting of the second defrost pattern, to be required, controls the air-conditioning system and be in second
Defrost pattern, the blower are in close state.
The air-conditioner outdoor unit includes heat exchange module in one of the embodiments,；When the defrost flag parameter meets
When the starting of second defrost pattern requires, controls the air-conditioning system and be in the second defrost pattern, the blower is in close state
The step of the following steps are included:
When the defrost flag parameter, which meets the starting of the second defrost pattern, to be required, controls the air-conditioning system and be in second
Defrost pattern, the heat exchange module are in heat release state, and the blower is in close state；
Obtain the temperature of the heat exchange module；
When the constant temperature of the heat exchange module continues greater than the second preset temperature, and greater than second preset temperature
When duration reaches the second default defrost and terminates duration, controlling the air-conditioning system terminates second defrost pattern, the heat exchange
Module is in heat absorption state.
The defrost flag parameter includes the high-pressure rate of decay, low of air-conditioning system in one of the embodiments,
At least one of the pressure pressure rate of decay and the delivery temperature rate of decay；
When the high-pressure rate of decay is greater than the second preset high-pressure decline of pressure speed and is lower than third preset high-pressure
Decline of pressure speed, the low pressure rate of decay are greater than the second low pressure rate of decay and are lower than third pre-set low pressure pressure
The power rate of decay and the delivery temperature rate of decay are greater than the second default delivery temperature rate of decay and the default row of low third
When at least one of temperature degree rate of decay is set up, the rate of decay meets the second defrost pattern starting and requires.
It is further comprising the steps of after the step of obtaining defrost flag parameter in one of the embodiments:
When the defrost flag parameter is unsatisfactory for that first defrost pattern starting requires and second defrost pattern opens
It is dynamic when requiring, it obtains and inhibits frosting flag parameter；
When the inhibition frosting flag parameter meets, and the starting of frosting mode is inhibited to require, controls the heating module and be in
Heated condition；
When the inhibition frosting flag parameter meets, and frosting mode is inhibited to terminate to require, controls the heating module and be in
Closed state.
In one of the embodiments, when the control heating module is in heated condition, while controlling the blower
It rotates backward；When the control heating module is in close state, while controlling the blower and stopping operating.
The inhibition frosting flag parameter includes high-pressure attenuation change amount and exhaust temperature in one of the embodiments,
Spend attenuation change amount；
When the high-pressure attenuation change amount is greater than default highest high-pressure attenuation change amount, and the delivery temperature
When attenuation change amount is greater than default highest delivery temperature attenuation change amount, the inhibition frosting flag parameter meets the inhibition knot
White mode starting requires；
Minimum high-pressure attenuation change amount, and the delivery temperature are preset when the high-pressure attenuation change amount is less than
For attenuation change amount less than when presetting minimum delivery temperature attenuation change amount, the inhibition frosting flag parameter meets the inhibition knot
White mode terminates to require.
A kind of air-conditioning system, including main casing and it is all set in the intracorporal memory of the main casing, processor, heated mould
Block, heat exchange module and blower are stored with computer program in the memory, and the computer program is held by the processor
When row, so that the processor controls the heating module, heat exchange module and the blower the step of executing the above method
Working condition.
The heating module is between the blower and the heat exchange module in one of the embodiments, when described
When blower rotates backward, the air-flow followed by the heating module and the heat exchange module is generated.
Detailed description of the invention
Fig. 1 is the flow chart of air-conditioning system defrosting control method of the invention；
Fig. 2 is the structural schematic diagram of the air-conditioner outdoor unit of air-conditioning system of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, a kind of air-conditioning system of the embodiment of the present invention, including air conditioner indoor unit (not shown) and it is connected to
The air-conditioner outdoor unit 100 of air conditioner indoor unit, refrigerant are back and forth flowed between air conditioner indoor unit and air-conditioner outdoor unit 100 to realize system
Cold or heat-production functions.
Memory, the processor, heat exchange module that air-conditioner outdoor unit 100 includes main casing 20 and is set in main casing 20
40, heating module 60 and blower 80, main casing 20 are equipped with accommodating chamber, and heat exchange module 40 is located at opposite two of accommodating chamber
End, heating module 60 is between heat exchange module 40 and blower 80.Computer program, computer program quilt are stored in memory
When processor executes, so that the step of processor executes following air-conditioning system defrosting control methods control heating module 60, heat exchange
The working condition of module 40 and blower 80.
Heat exchange module 40 is used to exchange the heat of refrigerant and outside air.When air-conditioning system is in refrigeration mode, heat exchange
Module 40 is in heat release state, and the gaseous coolant of high temperature and pressure occurs heat with outside air in heat exchange module 40 and exchanges, cold
Matchmaker's liquidation exothermic reaction forms liquid refrigerants.When air-conditioning system is in heating mode, heat exchange module 40 is in heat absorption state, and low temperature is low
The liquid refrigerants of pressure absorbs the heat in outside air in heat exchange module 40, to flash to gaseous coolant.
Heating module 60 can be electric heater unit, can also be vapor compression refrigeration device.When steam compression type refrigeration fills
It sets including compressor, condenser, throttling set and evaporator.Wherein, compressor exports high temperature and pressure refrigerant into heater,
Refrigerant discharges after heat further reducing pressure by regulating flow in flow throttling device within the condenser, flows into evaporate in evaporator later and inhale
Heat finally comes back in compressor and is recompressed.In this way, refrigerant forms a circulation, heated mould in heating module 60
Block 60 is the heat that the origin of heat that the defrost process of air-conditioning system provides condenses releasing in refrigerant within the condenser.It can manage
Solution, the specific configuration of heating module 60 is without being limited thereto, can be according to using different device.
Blower 80 can rotate under the drive of the motor, to form the air-flow for flowing through heat exchange module 40.Wherein, when blower 80 just
To when rotation, the air-flow for flowing to blower 80 by heating module 60 by heat exchange module 40 is formed.When blower 80 rotates backward, produce
Give birth to followed by heating module 60 and heat exchange module 40 and finally enter the air-flow of external environment.
Please refer to Fig. 1 and Fig. 2, above-mentioned air-conditioning system defrosting control method the following steps are included:
S110: defrost flag parameter is obtained.
Specifically, defrost flag parameter include the high-pressure rate of decay of air-conditioning system, the low pressure rate of decay or
At least one of delivery temperature rate of decay.Wherein, the high-pressure rate of decay is the second dervative of high-pressure and time,
The low pressure rate of decay is the second dervative of low pressure and time, and the delivery temperature rate of decay is delivery temperature and time
Second dervative.It is appreciated that defrost flag parameter is not limited to above-mentioned parameter, can also be set as needed as other parameters.
S120: it when defrost flag parameter, which meets the starting of the first defrost pattern, to be required, controls outside the air conditioning chamber of air-conditioning system
The heating module 60 of machine is in heated condition.
Specifically, when the high-pressure rate of decay of air-conditioning system is greater than the first preset high-pressure decline of pressure speed, air-conditioning
The low pressure rate of decay of system is greater than the first pre-set low pressure decline of pressure speed, the delivery temperature rate of decay of air-conditioning system
When reaching the establishment of at least one of first default delivery temperature rate of decay, show that heat exchange module 40 has condensed more frost,
Therefore defrost flag parameter meet the first defrost pattern starting require, thus pre-cooling heating module 60 be in heated condition with
Heating preheating is carried out, to improve defrosting effect.
S121: it when the duration that heating module 60 is in heated condition is more than default heating duration, controls at air-conditioning system
Heat release state is in the heat exchange module 40 of the first defrost pattern, air-conditioner outdoor unit.
Specifically, when the duration that heating module 60 is in heated condition is more than default heating duration, heating module at this time
60 have had reached enough temperature rise effects, therefore control air-conditioning system and be switched to the first defrost pattern, and heat exchange module 40 is from suction
Warm status is switched to heat release state, and the high temperature refrigerant of compressor output releases heat in heat exchange module 40 and melts frost.Specifically
In some embodiments, a length of 5min when the default heating of heating module 60.It is appreciated that when the default heating of heating module 60
It is without being limited thereto for a long time, it can need to be arranged according to different.
S122: it obtains blower and inverts flag parameter.
Wherein, blower reversion flag parameter includes the temperature of heat exchange module 40, the high pressure saturation temperature of air-conditioning system and row
At least one of the defrost duration of temperature degree and the heat exchange module 40 in defrost state.Specifically, the wing of heat exchange module 40
Piece position is equipped with defrost temperature sensor, and defrost temperature sensor is used to detect the temperature of heat exchange module 40.It is appreciated that changing
The installation site of white temperature sensor is without being limited thereto, can be set as needed in the different location of heat exchange module 40.
S123: when blower reversion flag parameter, which meets blower reversion starting, to be required, the blower 80 of air-conditioner outdoor unit is controlled
It rotates backward.
Specifically, when the temperature of heat exchange module 40 reaches preset temperature, the high pressure saturation temperature of air-conditioning system reaches default
High pressure saturation temperature, the delivery temperature of air-conditioning system reach default delivery temperature and the defrost duration of heat exchange module 40 is greater than or waits
When at least one of first default defrost duration is set up, blower reversion flag parameter meets blower reversion starting and requires.At this point,
Blower 80 starts to rotate backward, thus the outer surface for the air that module 60 heats will be heated guiding into heat exchange module 40, to accelerate
Defrosting effect.Preferably, when the temperature of heat exchange module 40 reaches preset temperature, the high pressure saturation temperature of air-conditioning system reaches default
High pressure saturation temperature, the delivery temperature of air-conditioning system reach default delivery temperature and the defrost duration of heat exchange module 40 is greater than or waits
When the first default defrost duration is set up, blower reversion flag parameter meets blower reversion starting and requires.
Specifically in one embodiment, the preset temperature of heat exchange module 40 is 2 DEG C, and preset high-pressure saturation temperature is 25 DEG C,
Default delivery temperature is 50 DEG C, and presetting defrost duration is 3min.It is appreciated that above-mentioned preset temperature, preset high-pressure pressure, presets
The specific value of delivery temperature and default defrost duration is without being limited thereto, can be set as needed.
Further, when blower 80 rotates backward, control blower 80 rises to maximum speed operation in the shortest time, thus
Frost water remaining in the fin of heat exchange module 40 is blown away using biggish wind speed, to accelerate the end of defrost process.
Step S124: the temperature of heat exchange module 40 is obtained.
Specifically, during heat exchange module 40 is in heat release state and blower 80 rotates backward, defrost temperature sensing
The temperature of device acquisition heat exchange module 40.
Step S125: when the constant temperature of heat exchange module 40 is greater than the first preset temperature, and it is greater than first preset temperature
When duration reaches the first default defrost and terminates duration, control air-conditioning system terminates the first defrost pattern, at heating module 60
In closed state, the stopping of blower 80 rotates backward and heat exchange module 40 is in heat absorption state.
Specifically, when the constant temperature of heat exchange module 40 is greater than the first preset temperature, and the duration of the state is kept to reach
When first default defrost terminates duration, show that the frost on heat exchange module 40 is melted completely, therefore air-conditioning system terminates first
Defrost pattern, heating module 60 stop heating work, and the stopping of blower 80 rotates backward, and heat exchange module 40 also switches to heat absorption state
And air-conditioning system is made to restore heating mode.Specifically in one embodiment, a length of 1min at the end of the first default defrost, first is default
Temperature is 8 DEG C.It is appreciated that the first default defrost terminates duration and the first preset temperature is without being limited thereto, it can be according to different needs
Setting.
In some embodiments, further comprising the steps of after step S110:
S130: when defrost flag parameter, which meets the starting of the second defrost pattern, to be required, control air-conditioning system is in second and changes
White mode, heat exchange module 40 are in heat release state, and blower 80 is in close state.
Specifically, when the high-pressure rate of decay is greater than the second preset high-pressure decline of pressure speed and lower than the default height of third
The pressure pressure rate of decay, the low pressure rate of decay are greater than the second low pressure rate of decay and are lower than third pre-set low pressure pressure
The rate of decay and the delivery temperature rate of decay are greater than the second default delivery temperature rate of decay and lower than the default exhaust temperature of third
When spending the establishment of at least one of rate of decay, show that heat exchange module 40 has condensed less frost, therefore defrost flag parameter is full
Foot the second defrost pattern starting requires, and air-conditioning system enters the second defrost pattern, and the working condition of heat exchange module 40 is by heat absorption shape
State is switched to heat release state, and high temperature refrigerant enters heat exchange module 40 and releases heat at this time, to melt on heat exchange module 40
Frost.
Wherein, third preset high-pressure decline of pressure speed is equal with the first preset high-pressure decline of pressure speed, and third is default
The low pressure rate of decay is equal with the first pre-set low pressure decline of pressure speed, and third presets the delivery temperature rate of decay and first
The default delivery temperature rate of decay is equal.
S131: the temperature of heat exchange module 40 is obtained.
Specifically, during heat exchange module 40 is in heat release state, defrost temperature sensor obtains heat exchange module 40
Temperature.
S132: when the constant temperature of heat exchange module 40 continues greater than the second preset temperature, and greater than the second preset temperature
When duration reaches the second default defrost and terminates duration, control control air-conditioning system terminates second defrost pattern, heat exchange module
40 are in heat absorption state.
Specifically, when the constant temperature of heat exchange module 40 is greater than the second preset temperature, and the duration of the state is kept to reach
When second default defrost terminates duration, show that the frost on heat exchange module 40 has been melted, therefore control air-conditioning system to terminate the
Two defrost patterns, control heat exchange module 40 switch to heat absorption state and air-conditioning system are made to restore heating mode.
Specifically in one embodiment, a length of 1min at the end of the second default defrost, the second preset temperature are 12 DEG C.It can manage
Solution, the second default defrost terminates duration and the second preset temperature is without being limited thereto, can need to be arranged according to different.
In this way, since the first defrost pattern improves defrost in such a way that blower 80 inverts and heating module 60 heats
Efficiency shortens the defrost time, therefore under the first defrost pattern, and air-conditioning system can faster enter heating mode, to guarantee
Heating effect.And the second defrost pattern is compared to the first defrost pattern, due to not using the reversion of blower 80 and heating module 60
The mode of heating carries out defrost, therefore is directed to situations such as frosting is less, and air-conditioning system carries out defrost using the second defrost pattern,
To reduce the energy consumption of air-conditioning system.
In some embodiments, in step S110: further comprising the steps of after the step of obtaining defrost flag parameter:
S140: when defrost flag parameter is unsatisfactory for the first defrost pattern starting requirement and the starting requirement of the second defrost pattern
When, it obtains and inhibits frosting flag parameter.
Specifically, when the high-pressure rate of decay of air-conditioning system is less than the second preset high-pressure decline of pressure speed, air-conditioning
The low pressure rate of decay of system decays less than the delivery temperature of the second pre-set low pressure decline of pressure speed and air-conditioning system
When speed is less than the second default delivery temperature rate of decay, defrost shows the non-condensing frost of heat exchange module 40, and there is no need to open
First defrost pattern or the second defrost pattern, but frosting flag parameter is obtained to judge whether heat exchange module 40 has frosting to become
Gesture.Specifically in some embodiments, inhibiting frosting flag parameter includes that high-pressure attenuation change amount and delivery temperature decaying become
Change amount.
S141: when inhibiting frosting flag parameter satisfaction that the starting of frosting mode is inhibited to require, control blower 80 is rotated backward,
And heating module 40 is controlled simultaneously and is in heated condition；
Specifically, when high-pressure attenuation change amount is greater than default highest high-pressure attenuation change amount, and delivery temperature
When attenuation change amount is greater than default highest delivery temperature attenuation change amount, showing heat exchange module 40, there are frosting trend, therefore press down
Frosting flag parameter processed, which meets, inhibits the starting of frosting mode to require, and control heating module 60 is in heated condition and controls wind simultaneously
Machine 80 rotates backward, to improve the temperature for flowing through the air-flow on surface of heat exchange module 40, and then inhibits heat exchange module 40
Frosting degree, extend the heating time of air-conditioning system, and improve the heating effect of air-conditioning system.
It is appreciated that in some embodiments, when inhibiting frosting flag parameter satisfaction that the starting of frosting mode is inhibited to require,
Heating module 40 can only be controlled and be in heated condition, and blower 80 is in close state, and is relied solely on heating module 40 and is generated heat
Amount inhibits 40 frosting of heat exchange module.
Specifically in one embodiment, highest high-pressure attenuation change amount and default highest delivery temperature attenuation change are preset
Amount is 10%.It is appreciated that the tool of default highest high-pressure attenuation change amount and default highest delivery temperature attenuation change amount
Body numerical value is without being limited thereto, can be set as needed as different numerical value.
S142: when inhibiting frosting flag parameter to meet inhibition frosting mode terminates to require, control heating module 60 is in
Closed state.
Specifically, minimum high-pressure attenuation change amount, and delivery temperature are preset when high-pressure attenuation change amount is less than
There is no frosting risks less than heat exchange module 40 when presetting minimum delivery temperature attenuation change amount, is shown for attenuation change amount, therefore
Inhibiting frosting flag parameter to meet inhibits frosting mode to terminate to require, and stops heating and stops blower to close heating module 60
80 reversions.
Specifically in one embodiment, it presets minimum high-pressure attenuation change amount and presets minimum delivery temperature attenuation change
Amount is 5%.It is not limited to it is appreciated that presetting minimum high-pressure attenuation change amount with minimum delivery temperature attenuation change amount is preset
This, and can be set as needed as different numerical value.
Above-mentioned air-conditioning system defrosting control method, including the first defrost pattern, the second defrost pattern and inhibition frosting mould
Formula so that effectively prevent air-conditioner outdoor unit changes thermal module frosting, while can exchange thermal modules 40 and carry out highly effective defrosting.Especially
During the first defrost, blower 80, which rotates backward, quickly to take condensed water outside outdoor unit out of, therefore accelerates drainage speed,
And use heating module 60 and carry out auxiliary heating, the thawing speed of frost is accelerated, so that the defrost period is effectively shortened,
And then the heating duration of air-conditioning system is increased, the decaying because of temperature in room caused by defrost process has been effectively relieved.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (15)
1. a kind of air-conditioning system defrosting control method, which comprises the following steps:
Obtain defrost flag parameter；
When the defrost flag parameter, which meets the starting of the first defrost pattern, to be required, control air-conditioning system is in the first defrost mould
Formula；
It obtains blower and inverts flag parameter；
When blower reversion flag parameter, which meets blower reversion starting, to be required, the wind of the air-conditioner outdoor unit (100) is controlled
Machine (80) rotates backward.
2. air-conditioning system defrosting control method according to claim 1, which is characterized in that the air-conditioner outdoor unit (100)
Including heat exchange module (40)；When the air-conditioning system is in the first defrost pattern, the heat exchange module (40) is in heat release shape
State.
3. air-conditioning system defrosting control method according to claim 2, which is characterized in that when the blower inverts mark ginseng
Number is when meeting blower reversal requirement, also wraps after controlling the step of the blowers (80) of the air-conditioner outdoor unit (100) rotates backward
Include following steps:
Obtain the temperature of the heat exchange module (40)；
When the constant temperature of the heat exchange module (40) continues greater than the first preset temperature, and greater than first preset temperature
When duration reaches the first default defrost and terminates duration, controlling the air-conditioning system terminates first defrost pattern, the blower
(80) stop rotating backward and the heat exchange module (40) is in heat absorption state.
4. air-conditioning system defrosting control method according to claim 2, which is characterized in that the blower inverts flag parameter
The high pressure saturation temperature and delivery temperature of temperature, the air-conditioning system including the heat exchange module (40) and be in defrost
At least one of the defrost duration of heat exchange module described in state (40)；
When the temperature of the heat exchange module (40) is greater than the first default heat exchange module (40) temperature, the high pressure saturation temperature is greater than
Preset high-pressure saturation temperature, the delivery temperature are greater than default delivery temperature and the defrost duration is greater than or equal to first in advance
If at least one of defrost duration is set up, the blower reversion flag parameter meets blower reversion starting and requires.
5. air-conditioning system defrosting control method according to claim 1, which is characterized in that the air-conditioner outdoor unit (100)
It further include heating module (60)；When the blower (80) rotates backward, the heating module (60) is in heated condition.
6. air-conditioning system defrosting control method according to claim 5, which is characterized in that when the defrost flag parameter is full
The step of foot the first defrost pattern starting is when requiring, and control air-conditioning system is in the first defrost pattern specifically includes the following steps:
When the defrost flag parameter, which meets the starting of the first defrost pattern, to be required, controls the heating module (60) and be in heating
State；
When the duration that the heating module (60) is in heated condition is more than default heating duration, control at the air-conditioning system
In first defrost pattern.
7. air-conditioning system defrosting control method according to claim 1, which is characterized in that the defrost flag parameter includes
At least one in the high-pressure rate of decay of the air-conditioning system, the low pressure rate of decay and the delivery temperature rate of decay
Person；
When the high-pressure rate of decay is big greater than the first preset high-pressure decline of pressure speed, the low pressure rate of decay
It is greater than in the first default delivery temperature rate of decay in the first low pressure rate of decay and the delivery temperature rate of decay
At least one establishment when, the defrost flag parameter meets first defrost pattern starting and requires.
8. air-conditioning system defrosting control method according to claim 1, which is characterized in that obtain the step of defrost flag parameter
It is further comprising the steps of after rapid:
When the defrost flag parameter, which meets the starting of the second defrost pattern, to be required, controls the air-conditioning system and be in the second defrost
Mode, the blower (80) are in close state.
9. air-conditioning system defrosting control method according to claim 8, which is characterized in that the air-conditioner outdoor unit (100)
Including heat exchange module (40)；When the defrost flag parameter, which meets the starting of the second defrost pattern, to be required, the air-conditioning system is controlled
System is in the second defrost pattern, the step of blower (80) is in close state the following steps are included:
When the defrost flag parameter, which meets the starting of the second defrost pattern, to be required, controls the air-conditioning system and be in the second defrost
Mode, the heat exchange module (40) are in heat release state, and the blower (80) is in close state；
Obtain the temperature of the heat exchange module (40)；
When the constant temperature of the heat exchange module (40) continues greater than the second preset temperature, and greater than second preset temperature
When duration reaches the second default defrost and terminates duration, controlling the air-conditioning system terminates second defrost pattern, the heat exchange
Module (40) is in heat absorption state.
10. air-conditioning system defrosting control method according to claim 9, which is characterized in that the defrost flag parameter packet
Include at least one in the high-pressure rate of decay, the low pressure rate of decay and the delivery temperature rate of decay of air-conditioning system
Person；
When the high-pressure rate of decay is greater than the second preset high-pressure decline of pressure speed and is lower than third preset high-pressure pressure
The rate of decay, the low pressure rate of decay are greater than the second low pressure rate of decay and decline lower than third pre-set low pressure pressure
Deceleration and the delivery temperature rate of decay are greater than the second default delivery temperature rate of decay and the default exhaust temperature of low third
When spending the establishment of at least one of rate of decay, the rate of decay meets the second defrost pattern starting and requires.
11. air-conditioning system defrosting control method according to claim 9, which is characterized in that obtain defrost flag parameter
It is further comprising the steps of after step:
When the defrost flag parameter is unsatisfactory for that first defrost pattern starting requires and second defrost pattern starting is wanted
When asking, obtains and inhibit frosting flag parameter；
When the inhibition frosting flag parameter meets, and the starting of frosting mode is inhibited to require, controls the heating module (60) and be in
Heated condition；
When the inhibition frosting flag parameter meets, and frosting mode is inhibited to terminate to require, controls the heating module (60) and be in
Closed state.
12. air-conditioning system defrosting control method according to claim 11, which is characterized in that when the control heating module
(60) it when being in heated condition, while controlling the blower (80) and rotating backward；Pass is in when controlling the heating module (60)
When closed state, while controlling the blower (80) and stopping operating.
13. air-conditioning system defrosting control method according to claim 11, which is characterized in that the inhibition frosting mark ginseng
Number includes high-pressure attenuation change amount and delivery temperature attenuation change amount；
When the high-pressure attenuation change amount is greater than default highest high-pressure attenuation change amount, and delivery temperature decaying
When variable quantity is greater than default highest delivery temperature attenuation change amount, the inhibition frosting flag parameter meets the inhibition frosting mould
Formula starting requires；
When the high-pressure attenuation change amount is less than minimum high-pressure attenuation change amount of presetting, and delivery temperature decaying
For variable quantity less than when presetting minimum delivery temperature attenuation change amount, the inhibition frosting flag parameter meets the inhibition frosting mould
Formula terminates to require.
14. a kind of air-conditioning system, which is characterized in that including main casing (20) and the storage being all set in the main casing (20)
Device, processor, heating module (60), heat exchange module (40) and blower (80) are stored with computer program in the memory,
When the computer program is executed by the processor, so that the processor perform claim requires any one of 1 to 13 institute
The step of stating method controls the working condition of the heating module (60), heat exchange module (40) and the blower (80).
15. air-conditioning system according to claim 14, which is characterized in that the heating module (60) is located at the blower
(80) it between the heat exchange module (40), when the blower (80) rotates backward, generates followed by the heating module
(60) with the air-flow of the heat exchange module (40).
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| CN111141006A (en) * | 2019-12-30 | 2020-05-12 | 宁波奥克斯电气股份有限公司 | Control method and control device for defrosting of air conditioner, storage medium and air conditioner |
| CN111811199A (en) * | 2020-07-12 | 2020-10-23 | 南京创维家用电器有限公司 | Control method for improving defrosting effect of air-cooled refrigerator under low-environment-temperature condition |
| CN112629084A (en) * | 2020-12-22 | 2021-04-09 | 广东美格动力新能源有限公司 | Defrosting operation determination method and defrosting system |
| CN112665119A (en) * | 2021-02-02 | 2021-04-16 | 南通华信中央空调有限公司 | Defrosting control method for direct expansion type air conditioner |
| CN112902313A (en) * | 2021-03-22 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
| CN113294898A (en) * | 2021-06-25 | 2021-08-24 | 美的集团股份有限公司 | Defrosting control method of air conditioner, device and storage medium |
| CN114165954A (en) * | 2020-09-11 | 2022-03-11 | 盾安环境技术有限公司 | Defrosting assembly, heat pump unit and defrosting method |
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| CN114279110A (en) * | 2022-03-01 | 2022-04-05 | 浙江乾丰智能科技有限公司 | Intelligent defrosting device and method for air energy water heater |
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| CN114234349A (en) * | 2021-11-16 | 2022-03-25 | 珠海格力电器股份有限公司 | Self-cleaning method and device for indoor side heat exchanger of air conditioner and air conditioner |
| CN114234349B (en) * | 2021-11-16 | 2022-12-13 | 珠海格力电器股份有限公司 | Self-cleaning method and device for indoor side heat exchanger of air conditioner and air conditioner |
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