CN109297221A - Control method and device of heat pump unit, storage medium and heat pump unit - Google Patents
Control method and device of heat pump unit, storage medium and heat pump unit Download PDFInfo
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- CN109297221A CN109297221A CN201810968522.9A CN201810968522A CN109297221A CN 109297221 A CN109297221 A CN 109297221A CN 201810968522 A CN201810968522 A CN 201810968522A CN 109297221 A CN109297221 A CN 109297221A
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- current
- defrost
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 214
- 238000012545 processing Methods 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 description 16
- 230000008859 change Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000012795 verification Methods 0.000 description 10
- 238000010257 thawing Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 7
- 230000002337 anti-port Effects 0.000 description 6
- 230000001737 promoting effect Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000004886 process control Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a control device of a heat pump unit, a storage medium and the heat pump unit, wherein the method comprises the following steps: acquiring current operation parameters of the heat pump unit after a heating stage begins in a current heating operation period; determining whether the current operation parameter is larger than or equal to a set double-sided frosting reversing parameter; if the current operation parameter is larger than or equal to the double-sided frosting reversing parameter, controlling an outdoor fan of the heat pump unit to perform reversing operation or controlling an air deflector of the heat pump unit to switch the air flow direction in the heating stage. According to the scheme provided by the invention, the problem that the heat exchanger in the prior art is poor in heat exchange performance due to the fact that the windward side frosts and the leeward side does not frost basically in the low-temperature environment can be solved, and the effect of improving the heat exchange performance is achieved.
Description
Technical field
The invention belongs to heat technical field, and in particular to a kind of control method of heat pump unit, device, storage medium and
Heat pump unit more particularly to a kind of method for promoting low temperature frozen condition system capability, have and are somebody's turn to do device corresponding with this method
The heat pump unit (such as heat pump air conditioner or heat pump hot-water system) of device, computer-readable the depositing for being stored with the corresponding instruction of this method
Storage media and the heat pump unit for being able to carry out the corresponding instruction of this method.
Background technique
Air-conditioning and hot-water heating system, usually using fin tube type air cooling heat exchanger, when low-temperature heating operation, heat exchanger surface
Can frosting, especially 0 DEG C or so environment temperature, can not absorb heat from environment once frosting and be supplied to the space of institute's calorific requirement,
The decaying of heating capacity efficiency is rapid.What current industry generallyd use has timing defrost, hot-gas bypass defrost or uses fin table
Face carries out nano coating and reduces the modes such as frost layer attachment, extend as far as possible heating operation period.But existing scheme still exists
Heat exchanger exchanges heat insufficient problem, and showing as frosting is usually that windward side knot is full, and leeward side is substantially frostless, and heat exchanger utilizes
Rate is low, and corresponding heating operation cycle time frequently enters defrosting.
Summary of the invention
It is an object of the present invention in view of the foregoing drawbacks, provide control method, the device, storage Jie of a kind of heat pump unit
Matter and heat pump unit, with solve in the prior art heat exchanger at low ambient temperatures windward side frosting and the basic frost-free of leeward is led
The problem for causing heat exchange property difference achievees the effect that promote heat exchange property.
The present invention provides a kind of control method of heat pump unit, comprising: obtains the heat pump unit in current heating operation
In period heat the stage start after current operating parameter；Determine whether the current operating parameter is greater than or equal to the double of setting
Face frosting commutating parameter；If the current operating parameter is greater than or equal to the two-sided frosting commutating parameter, in the heating
The outdoor fan commutation operation of heat pump unit described in stage control or the wind deflector of the control heat pump unit switch air stream
To.
Optionally, the outdoor fan of the heat pump unit described in the heating stage control, which commutates, runs, comprising: described in control
The direction of rotation of the outdoor fan of heat pump unit is switched to the second direction of rotation of setting by the first current direction of rotation, with control
It makes the outdoor fan to run by second direction of rotation, realizes the outdoor of the heat pump unit described in the heating stage control
The commutation operation of blower single；Wherein, second direction of rotation, comprising: first direction of rotation it is reversed；Alternatively, institute
State the wind deflector switching air flow direction of heat pump unit described in heating stage control, comprising: control the wind deflector of the heat pump unit
Wind-guiding direction the second wind-guiding direction of setting is switched to by the first current wind-guiding direction, to control the wind deflector by described
Second wind-guiding direction wind-guiding realizes the wind deflector single switching air flow direction of the heat pump unit described in the heating stage control；
Wherein, first wind-guiding direction, comprising: the direction different from first wind-guiding direction；First wind-guiding direction, packet
It includes: upward wind-guiding or downward wind-guiding.
Optionally, the direction of rotation for controlling the outdoor fan of the heat pump unit is switched to by the first current direction of rotation
Second direction of rotation of setting, comprising: the outdoor fan for controlling the heat pump unit stops transporting by the first current direction of rotation
The direction of rotation for going and then controlling the outdoor fan of the heat pump unit switches to setting by the first current direction of rotation
Second direction of rotation；Alternatively, the wind-guiding direction for controlling the wind deflector of the heat pump unit is switched by the first current wind-guiding direction
To the second wind-guiding direction of setting, comprising: the wind deflector stopping for controlling the heat pump unit is led by the first current wind-guiding direction
The wind-guiding direction of wind and then the wind deflector of the control heat pump unit switches to the of setting by the first current wind-guiding direction
Two wind-guiding directions.
Optionally, the outdoor fan of the heat pump unit described in the heating stage control, which commutates, runs, further includes: is controlling
After the outdoor fan is by second direction of rotation operation, continue to determine the outdoor fan by second direction of rotation
Whether the current operating parameter during operation is greater than or equal to the two-sided frosting commutating parameter, to realize in the heating
Step cycle controls the outdoor fan circulation commutation operation of the heat pump unit；Alternatively, the heat described in the heating stage control
The wind deflector switching air flow direction of pump assembly, further includes: after controlling the wind deflector by second wind-guiding direction wind-guiding,
Continue to determine whether the wind deflector is greater than or equal to by the current operating parameter during the wind-guiding of second wind-guiding direction
The two-sided frosting commutating parameter controls the wind deflector cyclic switching of the heat pump unit in the heating step cycle to realize
Air flow direction.
Optionally, after the outdoor fan commutation operation of the control heat pump unit, further includes: determine the room
Whether the current operating parameter after outer blower commutation operation is greater than or equal to the entrance defrost parameter of setting；Wherein, it is described into
Enter defrost parameter greater than the two-sided frosting commutating parameter；If the current operating parameter after the outdoor fan commutation operation is big
In or be equal to and described enter defrost parameter, then defrost stage after the heating stage in the current heating operation period
It controls the heat pump unit and enters defrost；Alternatively, after the wind deflector switching air flow direction of the control heat pump unit,
Further include: determine whether the current operating parameter after the wind deflector switching air flows to is greater than or equal to the entranceization of setting
White parameter；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；If the wind deflector switching air flow direction
Current operating parameter later be greater than or equal to it is described enter defrost parameter, then in the current heating operation period described in
Heat pump unit described in defrost stage control after the heating stage enters defrost.
Optionally, after the control heat pump unit enters defrost, further includes: determine that the heat pump unit enters
What whether the current operating parameter after defrost was less than or equal to setting exits defrost parameter；If the heat pump unit enters defrost
Current operating parameter later exits defrost parameter described in being less than or equal to, then controls the heat pump unit and exit defrost.
Optionally, after the outdoor fan commutation operation of the control heat pump unit, further includes: make the heat pump
The current rotating speed of the outdoor fan of unit switches to and the corresponding setting speed in corresponding direction of rotation after commutation；Alternatively,
After the wind deflector switching air flow direction of the control heat pump unit, further includes: make the wind deflector of the heat pump unit
Current wind-guiding angle switches to and the corresponding setting wind-guiding angle in corresponding wind-guiding direction after switching air flow direction.
Optionally, the current operating parameter, comprising: current frosting degree and/or current operation duration；The two-sided knot
White commutating parameter, comprising: at least one of frosting degree, operation duration；Wherein, the current frosting degree, can be by institute
State environment temperature, heat exchanger tube temperature, operating pressure, air intake duct tube temperature, the exhaust pipe tube temperature, running current, operation of heat pump unit
One or more of frequency, rotation speed of fan, line temperature determine；And/or the current operation duration, it can be by the heat
The compressor continuous operating time of pump assembly determines.
Match with the above method, another aspect of the present invention provides a kind of control device of heat pump unit, comprising: obtain single
Member, the stage that heats for obtaining the heat pump unit in the current heating operation period start after current operating parameter；Control
Unit, for determining whether the current operating parameter is greater than or equal to the two-sided frosting commutating parameter of setting；The control is single
Member is controlled if being also used to the current operating parameter more than or equal to the two-sided frosting commutating parameter in the heating stage
Make the outdoor fan commutation operation of the heat pump unit or the wind deflector switching air flow direction of the control heat pump unit.
Optionally, the outdoor fan of described control unit heat pump unit described in the heating stage control, which commutates, runs,
Include: described control unit, is also used to control the direction of rotation of the outdoor fan of the heat pump unit by the first current rotation
Direction switches to the second direction of rotation of setting, is run with controlling the outdoor fan by second direction of rotation, realizes
The outdoor fan single of heat pump unit described in the heating stage control, which commutates, to be run；Wherein, second direction of rotation, packet
Include: first direction of rotation it is reversed；Alternatively, described control unit heat pump unit described in the heating stage control is led
Aerofoil switches air flow direction, comprising: described control unit, be also used to control the wind-guiding direction of the wind deflector of the heat pump unit by
The first current wind-guiding direction switches to the second wind-guiding direction of setting, to control the wind deflector by second wind-guiding direction
Wind-guiding realizes the wind deflector single switching air flow direction of the heat pump unit described in the heating stage control；Wherein, described first
Wind-guiding direction, comprising: the direction different from first wind-guiding direction；First wind-guiding direction, comprising: upward wind-guiding or to
Lower wind-guiding.
Optionally, described control unit controls the direction of rotation of the outdoor fan of the heat pump unit by the first current rotation
Turn the second direction of rotation that direction switches to setting, comprising: described control unit is also used to control the outdoor of the heat pump unit
Blower stop running by current the first direction of rotation and then the direction of rotation of the outdoor fan that controls the heat pump unit by
The first current direction of rotation switches to the second direction of rotation of setting；Alternatively, described control unit controls the heat pump unit
The wind-guiding direction of wind deflector the second wind-guiding direction of setting is switched to by the first current wind-guiding direction, further includes: the control
Unit processed, the wind deflector for being also used to control the heat pump unit stop by the first current wind-guiding direction wind-guiding and then control
The wind-guiding direction of the wind deflector of the heat pump unit is switched to the second wind-guiding direction of setting by the first current wind-guiding direction.
Optionally, the outdoor fan of described control unit heat pump unit described in the heating stage control, which commutates, runs,
Further include: described control unit is also used to after controlling the outdoor fan by second direction of rotation operation, continues true
It is described whether the fixed outdoor fan is greater than or equal to by the current operating parameter during the operation of second direction of rotation
Two-sided frosting commutating parameter controls the outdoor fan circulation commutation fortune of the heat pump unit in the heating step cycle to realize
Row；Alternatively, the wind deflector switching air flow direction of described control unit heat pump unit described in the heating stage control, is also wrapped
Include: described control unit is also used to after controlling the wind deflector by second wind-guiding direction wind-guiding, continues described in determination
Whether wind deflector is greater than or equal to the two-sided frosting by the current operating parameter during the wind-guiding of second wind-guiding direction
Commutating parameter controls the wind deflector cyclic switching air flow direction of the heat pump unit in the heating step cycle to realize.
Optionally, described control unit is also wrapped after the outdoor fan commutation operation of the control heat pump unit
Include: described control unit is also used to determine whether the current operating parameter after the outdoor fan commutation operation is greater than or waits
Enter defrost parameter in setting；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；The control is single
Member, if the current operating parameter being also used to after the outdoor fan commutation operation enters defrost parameter more than or equal to described,
Then the heat pump unit described in the defrost stage control after the heating stage in the current heating operation period enters defrost；
Alternatively, described control unit is after the wind deflector switching air flow direction of the control heat pump unit, further includes: the control
Unit processed, is also used to determine whether the current operating parameter after the wind deflector switching air flow direction is greater than or equal to setting
Into defrost parameter；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；Described control unit is also used
If the current operating parameter after wind deflector switching air flow direction enters defrost parameter more than or equal to described, in institute
Heat pump unit described in defrost stage control after stating the heating stage in the current heating operation period enters defrost.
Optionally, described control unit is after the control heat pump unit enters defrost, further includes: the control
Unit, is also used to determine whether the current operating parameter after the heat pump unit enters defrost is less than or equal to exiting for setting
Defrost parameter；Described control unit is less than or waits if being also used to the current operating parameter that the heat pump unit enters after defrost
Defrost parameter is exited in described, then controls the heat pump unit and exits defrost.
Optionally, described control unit is also wrapped after the outdoor fan commutation operation of the control heat pump unit
Include: described control unit is also used to make the current rotating speed of the outdoor fan of the heat pump unit, switches to and the phase after commutation
Answer the corresponding setting speed in direction of rotation；Alternatively, wind deflector switching of the described control unit in the control heat pump unit
After air flow direction, further includes: described control unit is also used to make the current wind-guiding angle of the wind deflector of the heat pump unit,
It switches to and the corresponding setting wind-guiding angle in corresponding wind-guiding direction after switching air flow direction.
Optionally, the current operating parameter, comprising: current frosting degree and/or current operation duration；The two-sided knot
White commutating parameter, comprising: at least one of frosting degree, operation duration；Wherein, the current frosting degree, can be by institute
State environment temperature, heat exchanger tube temperature, operating pressure, air intake duct tube temperature, the exhaust pipe tube temperature, running current, operation of heat pump unit
One or more of frequency, rotation speed of fan, line temperature determine；And/or the current operation duration, it can be by the heat
The compressor continuous operating time of pump assembly determines.
Match with above-mentioned apparatus, further aspect of the present invention provides a kind of heat pump unit, comprising: above-described heat pump machine
The control device of group.
Match with the above method, further aspect of the present invention provides a kind of storage medium, comprising: deposited in the storage medium
Contain a plurality of instruction；The a plurality of instruction, for being loaded by processor and being executed the control method of above-described heat pump unit.
Match with the above method, further aspect of the present invention provides a kind of heat pump unit, comprising: above-described storage is situated between
Matter, and the processor for executing a plurality of instruction stored in the storage medium.
The solution of the present invention makes blower antiport by using blower positive and negative rotation control technology, so that original heat exchanger
Leeward side become windward side, make full use of heat exchanger two sides to carry out promoting the heating operation period, promote low-temperature heating capacity and energy
Effect.
Further, the solution of the present invention makes the multiple of blower fan turning and revolving speed by using blower positive and negative rotation control technology
Varying cyclically, air flow direction and flow velocity also change correspondingly, so that the windward side of heat exchanger and the uniform frosting of leeward, bring heating
The cycle of operation extends, and promotes heating capacity and efficiency, reduces the frequency for carrying out defrost, it is more stable to be heated space temperature.
Further, the solution of the present invention controls blower fan turning and revolving speed, makes by using blower positive and negative rotation control technology
Obtaining heat exchanger, windward side and leeward frosting are uniform at low ambient temperatures, promote the overall heat exchange performance of heat exchanger, extend heating
The cycle of operation, operation heating temperature fluctuation is more stable, and heating capacity is more sufficient, more energy efficient.
Further, the solution of the present invention controls the more of blower fan turning and revolving speed by using blower positive and negative rotation control technology
Secondary varying cyclically can promote the heat exchange property of heat exchanger frosting environmental working condition.
Further, the solution of the present invention controls the more of blower fan turning and revolving speed by using blower positive and negative rotation control technology
Secondary varying cyclically extends the heating operation period, reduces frequent switching refrigerant flow direction defrost bring temperature fluctuation.
The solution of the present invention as a result, by making blower antiport, so that the leeward side of original heat exchanger becomes windward
Side, solve in the prior art heat exchanger at low ambient temperatures windward side frosting and the basic frost-free of leeward causes heat exchange property poor
The problem of, thus, overcome that heat exchange property in the prior art is poor, the heating defect that the period is short and temperature fluctuation is big, realizes heat-exchange performance
It can good, the heating beneficial effect that the period is long and temperature fluctuation is small.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the flow diagram of an embodiment of the control method of heat pump unit of the invention；
Fig. 2 is the stream for the embodiment that control heat pump unit enters defrost after making blower commutation operation in method of the invention
Journey schematic diagram；
Fig. 3 is the embodiment that control heat pump unit exits defrost after making heat pump unit enter defrost in method of the invention
Flow diagram；
Fig. 4 is the structural schematic diagram of an embodiment of the control device of heat pump unit of the invention；
Fig. 5 is that the blower of an embodiment of heat pump unit of the invention first rotates forward the flow diagram inverted afterwards；
Fig. 6 is that the blower of an embodiment of heat pump unit of the invention first inverts the flow diagram rotated forward afterwards；
Fig. 7 is the structural schematic diagram of the heat exchanger of an embodiment of heat pump unit of the invention.
In conjunction with attached drawing, appended drawing reference is as follows in the embodiment of the present invention:
102- acquiring unit；104- control unit.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
According to an embodiment of the invention, a kind of control method of heat pump unit is provided, method of the invention as shown in Figure 1
An embodiment flow diagram.The control method of the heat pump unit may include: step S110 to step S130.
At step S110, after the heating stage in the current heating operation period of the heat pump unit starts, obtain
The heat pump unit heated in the current heating operation period stage start after current operating parameter.
At step S120, determine whether the current operating parameter is greater than or equal to the two-sided frosting commutation ginseng of setting
Number.
Optionally, the current operating parameter may include: current frosting degree and/or current operation duration.It is described double
Frosting commutating parameter in face may include: at least one of frosting degree, operation duration.
Such as: through control blower when preset first direction rotates, the frosting of windward side reaches obstruction heat exchange
When the air flow channel < 95% of device, switch the preset second direction of blower fan turning (such as opposite with first direction the at this time
Two directions), air is introduced into the second face of heat exchanger, and heat exchange occurs mainly in the second face, and frosting is continued in the second face again, until can not
Heat exchange enters back into defrost circulation, improves heat exchange efficiency on the whole in this way, extends the defrost time.
Wherein, the current frosting degree can be pressed by the environment temperature of the heat pump unit, heat exchanger tube temperature, operation
One or more of power, air intake duct tube temperature, exhaust pipe tube temperature, running current, running frequency, rotation speed of fan, line temperature are true
It is fixed；And/or the current operation duration, it can be determined by the compressor continuous operating time of the heat pump unit.
Such as: unit sender parameter can specifically include: running frequency, rotation speed of fan, line temperature, suction temperature,
Compressor continuous operating time and environment temperature etc..
Such as: example shown in referring to figs. 5 and 6 can judge unit by system operating temperature and pressure and other parameters
Whether need to enter blower fan turning to adjust.
Such as: environment temperature, heat exchanger tube temperature, compressor operating time, system fortune are acquired by heat pump unit sensor
Row pressure, the parameters such as air intake duct tube temperature, exhaust pipe tube temperature, unit running current judge that the frosting degree in the first face of heat exchanger is true
Whether recognize, which enter the second face, exchanges heat.
Pass through the current operating parameter of the operating parameters such as the current frosting degree of heat pump unit, current operation duration as a result,
Determine whether the commutation condition of the outdoor fan commutation operation of heat pump unit reaches, so that the outdoor fan to heat pump unit commutates
The judgment mode of the commutation condition of operation is flexibly and reliable；The current frosting journey of heat pump unit is further determined by diversified forms
The operating parameters such as degree, current operation duration, control flexibility is good, versatile.
At step S130, if the current operating parameter is greater than or equal to the two-sided frosting commutating parameter, in institute
The wind deflector switching of the outdoor fan commutation operation or the control heat pump unit of stating heat pump unit described in heating stage control is empty
Air-flow is in the heating stage in the current heating operation period, to make the heat pump unit in the heat pump unit
Blower commutation operation.
Such as: determine whether the current operating parameter is greater than or equal to the two-sided frosting commutating parameter of setting and is less than
Setting enters defrost parameter.If the current operating parameter is greater than or equal to the two-sided frosting commutating parameter and is less than institute
State enter defrost parameter, then control the heat pump unit blower commutation operation, in the heat pump unit in the current system
In the heating stage in the hot cycle of operation, so that the blower of the heat pump unit is commutated and run.
Optionally, if can also include: that the current operating parameter is less than the two-sided frosting commutating parameter, institute be maintained
The outdoor fan for stating heat pump unit is continued to run by the first current direction of rotation, until with described in the heating stage
Heat pump unit continues to heat, if make it is described continue heating during current operating parameter raise to above or be equal to described double
Frosting commutating parameter in face just controls the blower commutation operation of the heat pump unit.
As a result, by the heating stage in the current heating operation period, judged according to the current operating parameter of heat pump unit
Whether the commutation opportunity of outdoor fan reaches, and makes outdoor fan commutation operation when reaching on the commutation opportunity of outdoor fan, has
Conducive to the uniformity for promoting outdoor heat exchanger two sides frosting degree, and then promote the heat exchange property of heat pump unit.
In an optional example, the outdoor fan of the heat pump unit described in the heating stage control is changed in step S130
It may include: to control the direction of rotation of the outdoor fan of the heat pump unit by current the first direction of rotation switching to operation
It to the second direction of rotation of setting, is run, is realized in the heating with controlling the outdoor fan by second direction of rotation
The outdoor fan single of heat pump unit described in stage control, which commutates, to be run.
Wherein, second direction of rotation may include: the reversed of first direction of rotation.
Such as: it, so that the leeward side of original heat exchanger becomes windward side, can be made full use of by making blower antiport
Heat exchanger two sides carry out promoting the heating operation period, promote low-temperature heating capacity and efficiency.
Such as: in order to promote the exchange capability of heat under unit frozen condition, it can turn to and change by change blower rotation
Revolving speed reaches the uniform frosting of heat exchanger windward side and leeward (as shown in Figure 7), extends the heating operation time, effective promotionization
White speed, it is more effective particularly with multiple rows of heat exchanger.
Alternatively, the wind deflector switching air of the heat pump unit described in the heating stage control flows in step S130, it can
To include: to control the wind-guiding direction of the wind deflector of the heat pump unit to switch to the second of setting by the first current wind-guiding direction
The heat described in the heating stage control is realized to control the wind deflector by second wind-guiding direction wind-guiding in wind-guiding direction
The wind deflector single switching air flow direction of pump assembly.
Wherein, first wind-guiding direction may include: the direction different from first wind-guiding direction；Described first
Wind-guiding direction, opening include: upward wind-guiding or downward wind-guiding.
As a result, by making the direction of rotation of the outdoor fan of heat pump unit switch (the first such as current rotation by working as front direction
Turn direction) to direction initialization (such as the second direction of rotation of setting), realize the single of the outdoor fan of heating stage heat pump unit
Commutation operation can make outdoor heat exchanger in the frosting degree homogenization when front direction and direction initialization, and then extend heating rank
The operation duration of section, promotes the heat transfer effect of heat pump unit.
More optionally, the direction of rotation for controlling the outdoor fan of the heat pump unit is switched by the first current direction of rotation
It may include: to control the outdoor fan stopping of the heat pump unit by the first current rotation to the second direction of rotation of setting
The direction of rotation that direction ran and then controlled the outdoor fan of the heat pump unit is switched to by the first current direction of rotation
Second direction of rotation of setting.
Such as: blower is closed, reverse starting is run again later, and wind direction is reversed at this time, and frosting is again at the back side of heat exchanger
It initially forms.
Alternatively, the wind-guiding direction for controlling the wind deflector of the heat pump unit switches to setting by the first current wind-guiding direction
The second wind-guiding direction, may include: control the heat pump unit wind deflector stop by the first current wind-guiding direction wind-guiding
And then the wind-guiding direction of the wind deflector of the control heat pump unit switches to the second of setting by the first current wind-guiding direction
Wind-guiding direction.
Pass through switching outdoor fan after directly switching the direction of rotation of outdoor fan or outdoor fan being made to shut down as a result,
Direction of rotation can flexibly select switching mode according to the hardware performance of heat pump unit itself and the use demand of user, use
Convenience is good, controls high reliablity.
In an optional example, the outdoor fan of the heat pump unit described in the heating stage control is changed in step S130
To operation, still optionally further can also include: after controlling the outdoor fan by second direction of rotation operation,
During the outdoor fan is by second direction of rotation operation, continue to determine the outdoor fan by second rotation
Whether the current operating parameter during direction is run is greater than or equal to the two-sided frosting commutating parameter, in the heating
Stage continues to control the outdoor fan commutation operation of the heat pump unit, realizes and controls the heat pump in the heating step cycle
The outdoor fan circulation commutation operation of unit.
Such as: if the outdoor fan by second direction of rotation run during current operating parameter be greater than or
Equal to the two-sided frosting commutating parameter, then make the direction of rotation of the outdoor fan of the heat pump unit by the second current rotation
Direction switches to first direction of rotation, so that the outdoor fan is run by first direction of rotation, to realize in institute
State the outdoor fan circulation commutation operation that heating step cycle controls the heat pump unit.
Such as: blower fan turning control can be taken between preset first direction and preset second direction
Cyclic switching, two faces that also can achieve heat exchanger more fully exchange heat.
Such as: during heat pump unit continuous heating is run, blower fan turning can repeatedly switch, finally with defrost entry condition
To determine.
Alternatively, it is described heating stage control described in heat pump unit wind deflector switching air flow direction, can also include:
After the wind deflector is controlled by second wind-guiding direction wind-guiding, continue to determine the wind deflector by second wind-guiding direction
Whether the current operating parameter during wind-guiding is greater than or equal to the two-sided frosting commutating parameter, to realize in the heating
Step cycle controls the wind deflector cyclic switching air flow direction of the heat pump unit.
As a result, after the outdoor fan single commutation operation by making heat pump unit in the heating stage, continue outdoor wind
The commutation control of machine is realized in the multiple circulation commutation control of heating stage outdoor fan, can further extend the heating stage
Operation duration, avoid entering defrost in advance since outdoor heat exchanger frosting degree is uneven in the current heating operation period
Stage improves the heat transfer effect in the current heating operation period, also saves the frequent defrost in entire heating operations and generates
Energy consumption.
In an optional embodiment, the outdoor fan of the control heat pump unit, which commutates, in step s 130 is transported
It can also include: the process that control heat pump unit enters defrost after making blower commutation operation after row.
Enter the one of defrost below with reference to control heat pump unit after running blower commutation in method of the invention shown in Fig. 2
The flow diagram of embodiment, further explanation control the detailed process that heat pump unit enters defrost after making blower commutation operation,
It may include: step S210 and step S220.
Step S210 determines the outdoor wind after the outdoor fan commutation operation of the control heat pump unit
Whether the current operating parameter after machine commutation operation is greater than or equal to the entrance defrost parameter of setting.Wherein, the entranceization
White parameter is greater than the two-sided frosting commutating parameter.
Step S220, if the current operating parameter after outdoor fan commutation operation is greater than or equal to the entranceization
White parameter, then the defrost stage after the heating stage in the current heating operation period is (i.e. by the heating stage
The defrost stage into the current heating operation period) the control heat pump unit enters defrost, so that the current system
The heating stage in the hot cycle of operation terminates and the defrost stage, and in the heat pump unit in the current heating operation week
When the interim defrost stage starts, the heat pump unit is made to enter defrost (defrost pattern as entered setting).
Optionally, if can also include: current operating parameter after outdoor fan commutation operation be less than it is described into
Enter defrost parameter, then heating stage of the heat pump unit in the current heating operation period is maintained to continue to run, until
Current operating parameter in the current heating operation period further raises to above or the entrance equal to setting enters defrost
Parameter, then the heating stage in the current heating operation period terminates namely the defrost in the current heating operation period
Stage just controls the heat pump unit and enters defrost (defrost pattern as entered setting).
Such as: unit sender parameter is continued to test, is compared with mainboard process control parameter, if in control range
Inside then remain in operation；If necessary to enter defrost, then enter the defrost pattern of setting.
Such as: example as shown in Figure 5 and Figure 6 closes blower, four-way reversing valve switching, into defrosting control.
Alternatively, can also comprise determining that institute after the wind deflector switching air flow direction of the control heat pump unit
State the entrance defrost the parameter whether current operating parameter after wind deflector switching air flows to is greater than or equal to setting；Wherein,
The defrost parameter that enters is greater than the two-sided frosting commutating parameter；If the current fortune after the wind deflector switching air flow direction
Row parameter enters defrost parameter more than or equal to described, then after the heating stage in the current heating operation period
Heat pump unit described in defrost stage control enters defrost.
As a result, by further postrun current according to commutating after the outdoor fan commutation operation of control heat pump unit
Operating parameter determines whether heat pump unit reaches defrost opportunity, the timely defrost if reaching defrost opportunity, to guarantee heat pump unit
It is reliable and safe operation.
In an optional embodiment, the control heat pump unit in step S210 and step S220 enters
It can also include: the process for controlling heat pump unit after making heat pump unit enter defrost and exiting defrost after defrost.
Defrost is exited below with reference to heat pump unit is controlled after so that heat pump unit is entered defrost in method of the invention shown in Fig. 3
An embodiment flow diagram, further illustrate that control heat pump unit exits the tool of defrost after so that heat pump unit is entered defrost
Body process may include: step S310 and step S320.
Step S310, determines whether the current operating parameter after the heat pump unit enters defrost is less than or equal to setting
Exit defrost parameter.
Step S320, if the heat pump unit enters the current operating parameter after defrost and is less than or equal to the exiting
White parameter then controls the heat pump unit and exits defrost so that the defrost stage in the current heating operation period terminate and
The heating stage in next heating operation period in the current heating operation period, and in the heat pump unit described
At the end of the defrost stage in the current heating operation period, so that the heat pump unit is exited defrost and (such as exit the defrost mould of setting
Formula).
Optionally, if can also include: that the current operating parameter that enters after defrost of the heat pump unit is greater than described move back
Defrost parameter out then maintains defrost stage of the heat pump unit in the current heating operation period to continue defrost, until
With the continuation defrost of the heat pump unit in the defrost stage, if making current operating parameter during the continuation defrost
It is reduced to less than or equal to described when exiting defrost parameter, just controls the heat pump unit and exit defrost and (such as exit the change of setting
White mode).
Such as: example as shown in Figure 5 and Figure 6 is again introduced into heating operation after exiting, blower is to rotate in the forward direction.
As a result, by control heat pump unit enter defrost after further according to defrost during current operating parameter it is true
It is fixed that whether defrost finishes, to exit defrost in time when defrost finishes, avoid continuing after defrost defrost increase energy consumption,
Normal heating operation is influenced, so that the timeliness of defrosting control is good, high reliablity, it is also ensured that heating operates normally to mention
Rise the comfortable sexual experience of user.
In an optional embodiment, the outdoor fan of the control heat pump unit, which commutates, in step s 130 is transported
It can also include: the current rotating speed for making the outdoor fan of the heat pump unit after row, switch to and the corresponding rotation after commutation
Turn the corresponding setting speed in direction.
Such as: blower positive and negative rotation control technology is used, the multiple varying cyclically of blower fan turning and revolving speed, air stream are passed through
It is also changed correspondingly to flow velocity, so that the windward side of heat exchanger and the uniform frosting of leeward, bring heating operation cycle stretch-out, mention
Heating capacity and efficiency (such as multiple rows of heat exchanger better effect) are risen, reduces the frequency for carrying out defrost, it is more steady to be heated space temperature
It is fixed.
Such as: blower positive and negative rotation control technology is used, blower fan turning and revolving speed are controlled, so that heat exchanger is in low temperature environment
Lower windward side and leeward frosting are uniform, promote the overall heat exchange performance at least 10% or more of heat exchanger, extend heating operation week
20% or more phase, operation heating temperature fluctuation is more stable, and heating capacity is more sufficient, more energy efficient.
Alternatively, after the wind deflector switching air flow direction of the control heat pump unit, can also include: make it is described
The current wind-guiding angle of the wind deflector of heat pump unit switches to set corresponding to the corresponding wind-guiding direction after switching air flow direction
Determine wind-guiding angle.
As a result, by further controlling the revolving speed of outdoor fan after the outdoor fan commutation operation of control heat pump unit,
Heating effect can be preferably promoted, user experience is further promoted.
Through a large amount of verification experimental verification, made using the technical solution of the present embodiment by using blower positive and negative rotation control technology
Blower antiport makes full use of heat exchanger two sides to carry out promotion heating so that the leeward side of original heat exchanger becomes windward side
The cycle of operation promotes low-temperature heating capacity and efficiency.
According to an embodiment of the invention, additionally providing a kind of control of heat pump unit of the control method corresponding to heat pump unit
Device processed.The structural schematic diagram of one embodiment of the device of the invention shown in Figure 4.The control device of the heat pump unit can be with
It include: acquiring unit 102 and control unit 104.
In an optional example, acquiring unit 102 can be used for the current heating operation period in the heat pump unit
In the heating stage start after, obtain the heat pump unit heated in the current heating operation period stage start after current fortune
Row parameter.The concrete function of the acquiring unit 102 and processing are referring to step S110.
In an optional example, control unit 104 is determined for whether the current operating parameter is greater than or waits
In the two-sided frosting commutating parameter of setting.The concrete function of the control unit 104 and processing are referring to step S120.
Optionally, the current operating parameter may include: current frosting degree and/or current operation duration.It is described double
Frosting commutating parameter in face may include: at least one of frosting degree, operation duration.
Such as: through control blower when preset first direction rotates, the frosting of windward side reaches obstruction heat exchange
When the air flow channel < 95% of device, switch the preset second direction of blower fan turning (such as opposite with first direction the at this time
Two directions), air is introduced into the second face of heat exchanger, and heat exchange occurs mainly in the second face, and frosting is continued in the second face again, until can not
Heat exchange enters back into defrost circulation, improves heat exchange efficiency on the whole in this way, extends the defrost time.
Wherein, the current frosting degree can be pressed by the environment temperature of the heat pump unit, heat exchanger tube temperature, operation
One or more of power, air intake duct tube temperature, exhaust pipe tube temperature, running current, running frequency, rotation speed of fan, line temperature are true
It is fixed；And/or the current operation duration, it can be determined by the compressor continuous operating time of the heat pump unit.
Such as: unit sender parameter can specifically include: running frequency, rotation speed of fan, line temperature, suction temperature,
Compressor continuous operating time and environment temperature etc..
Such as: example shown in referring to figs. 5 and 6 can judge unit by system operating temperature and pressure and other parameters
Whether need to enter blower fan turning to adjust.
Such as: environment temperature, heat exchanger tube temperature, compressor operating time, system fortune are acquired by heat pump unit sensor
Row pressure, the parameters such as air intake duct tube temperature, exhaust pipe tube temperature, unit running current judge that the frosting degree in the first face of heat exchanger is true
Whether recognize, which enter the second face, exchanges heat.
Pass through the current operating parameter of the operating parameters such as the current frosting degree of heat pump unit, current operation duration as a result,
Determine whether the commutation condition of the outdoor fan commutation operation of heat pump unit reaches, so that the outdoor fan to heat pump unit commutates
The judgment mode of the commutation condition of operation is flexibly and reliable；The current frosting journey of heat pump unit is further determined by diversified forms
The operating parameters such as degree, current operation duration, control flexibility is good, versatile.
In an optional example, described control unit 104 is greater than or waits if can be also used for the current operating parameter
In the two-sided frosting commutating parameter, then it is described heating stage control described in heat pump unit outdoor fan commutation operation or
Control the heat pump unit wind deflector switching air flow direction, in the heat pump unit in the current heating operation period
The heating stage in, make the heat pump unit blower commutate operation.The concrete function of the control unit 104 and processing are seen also
Step S130.
Such as: determine whether the current operating parameter is greater than or equal to the two-sided frosting commutating parameter of setting and is less than
Setting enters defrost parameter.If the current operating parameter is greater than or equal to the two-sided frosting commutating parameter and is less than institute
State enter defrost parameter, then control the heat pump unit blower commutation operation, in the heat pump unit in the current system
In the heating stage in the hot cycle of operation, so that the blower of the heat pump unit is commutated and run.
It optionally, can also include: described control unit 104, if can be also used for the current operating parameter less than institute
Two-sided frosting commutating parameter is stated, then the outdoor fan of the heat pump unit is maintained to continue to run by the first current direction of rotation,
Until continuing to heat with the heat pump unit in the heating stage, if making the current fortune during continuing heating
Row parameter raises to above or is equal to the two-sided frosting commutating parameter, just controls the blower commutation operation of the heat pump unit.
As a result, by the heating stage in the current heating operation period, judged according to the current operating parameter of heat pump unit
Whether the commutation opportunity of outdoor fan reaches, and makes outdoor fan commutation operation when reaching on the commutation opportunity of outdoor fan, has
Conducive to the uniformity for promoting outdoor heat exchanger two sides frosting degree, and then promote the heat exchange property of heat pump unit.
In a specific optional example, the heat pump unit described in the heating stage control of described control unit 104
Outdoor fan commutation operation, may include: described control unit 104, can be also used for the outdoor wind for controlling the heat pump unit
The direction of rotation of machine is switched to the second direction of rotation of setting by the first current direction of rotation, is pressed with controlling the outdoor fan
The second direction of rotation operation is realized that the outdoor fan single of the heat pump unit described in the heating stage control commutates and is transported
Row.
Wherein, second direction of rotation may include: the reversed of first direction of rotation.
Such as: it, so that the leeward side of original heat exchanger becomes windward side, can be made full use of by making blower antiport
Heat exchanger two sides carry out promoting the heating operation period, promote low-temperature heating capacity and efficiency.
Such as: in order to promote the exchange capability of heat under unit frozen condition, it can turn to and change by change blower rotation
Revolving speed reaches the uniform frosting of heat exchanger windward side and leeward (as shown in Figure 7), extends the heating operation time, effective promotionization
White speed, it is more effective particularly with multiple rows of heat exchanger.
Alternatively, the wind deflector of the heat pump unit described in the heating stage control of described control unit 104 switches air stream
To may include: to control the wind-guiding direction of the wind deflector of the heat pump unit to switch to setting by the first current wind-guiding direction
The second wind-guiding direction realized with controlling the wind deflector by second wind-guiding direction wind-guiding in the heating stage control
The wind deflector single switching air flow direction of the heat pump unit.
Wherein, first wind-guiding direction may include: the direction different from first wind-guiding direction；Described first
Wind-guiding direction may include: upward wind-guiding or downward wind-guiding.
As a result, by making the direction of rotation of the outdoor fan of heat pump unit switch (the first such as current rotation by working as front direction
Turn direction) to direction initialization (such as the second direction of rotation of setting), realize the single of the outdoor fan of heating stage heat pump unit
Commutation operation can make outdoor heat exchanger in the frosting degree homogenization when front direction and direction initialization, and then extend heating rank
The operation duration of section, promotes the heat transfer effect of heat pump unit.
In a further optional specific example, described control unit 104 controls the outdoor fan of the heat pump unit
Direction of rotation the second direction of rotation of setting is switched to by the first current direction of rotation, may include: described control unit
104, the outdoor fan that can be also used for controlling the heat pump unit stops running and then controlling by the first current direction of rotation
The direction of rotation for making the outdoor fan of the heat pump unit is switched to the second rotation side of setting by the first current direction of rotation
To.
Such as: blower is closed, reverse starting is run again later, and wind direction is reversed at this time, and frosting is again at the back side of heat exchanger
It initially forms.
Alternatively, the wind-guiding direction that described control unit 104 controls the wind deflector of the heat pump unit is led by current first
Wind direction switches to the second wind-guiding direction of setting, may include: to control the wind deflector stopping of the heat pump unit by current
The wind-guiding direction of first wind-guiding direction wind-guiding and then the wind deflector of the control heat pump unit is by the first current wind-guiding direction
Switch to the second wind-guiding direction of setting.
Pass through switching outdoor fan after directly switching the direction of rotation of outdoor fan or outdoor fan being made to shut down as a result,
Direction of rotation can flexibly select switching mode according to the hardware performance of heat pump unit itself and the use demand of user, use
Convenience is good, controls high reliablity.
In a further optional example, the heat pump unit described in the heating stage control of described control unit 104
Outdoor fan commutation operation or the control heat pump unit wind deflector switching air flow direction, can also include: the control
Unit 104 can be also used for after controlling the outdoor fan by second direction of rotation operation, in the outdoor fan
During by second direction of rotation operation, continue to determine the mistake that the outdoor fan is run by second direction of rotation
Whether the current operating parameter in journey is greater than or equal to the two-sided frosting commutating parameter, to continue to control in the heating stage
The outdoor fan of the heat pump unit, which commutates, to be run, and is realized and is controlled the outdoor wind of the heat pump unit in the heating step cycle
Machine circulation commutation operation.
Such as: described control unit 104, if can be also used for what the outdoor fan was run by second direction of rotation
Current operating parameter in the process is greater than or equal to the two-sided frosting commutating parameter, then makes the outdoor fan of the heat pump unit
Direction of rotation first direction of rotation is switched to by the second current direction of rotation so that the outdoor fan is by described the
The operation of one direction of rotation controls the outdoor fan circulation commutation fortune of the heat pump unit in the heating step cycle to realize
Row.
Such as: blower fan turning control can be taken between preset first direction and preset second direction
Cyclic switching, two faces that also can achieve heat exchanger more fully exchange heat.
Such as: during heat pump unit continuous heating is run, blower fan turning can repeatedly switch, finally with defrost entry condition
To determine.
Alternatively, the wind deflector of the heat pump unit described in the heating stage control of described control unit 104 switches air stream
To, can also include: after controlling the wind deflector by second wind-guiding direction wind-guiding, continue to determine the wind deflector by
Whether the current operating parameter during the wind-guiding of second wind-guiding direction is greater than or equal to the two-sided frosting commutating parameter,
The wind deflector cyclic switching air flow direction of the heat pump unit is controlled in the heating step cycle to realize.
As a result, after the outdoor fan single commutation operation by making heat pump unit in the heating stage, continue outdoor wind
The commutation control of machine is realized in the multiple circulation commutation control of heating stage outdoor fan, can further extend the heating stage
Operation duration, avoid entering defrost in advance since outdoor heat exchanger frosting degree is uneven in the current heating operation period
Stage improves the heat transfer effect in the current heating operation period, also saves the frequent defrost in entire heating operations and generates
Energy consumption.
In an optional embodiment, outdoor fan of the described control unit 104 in the control heat pump unit
It can also include: the process that control heat pump unit enters defrost after making blower commutation operation after commutation operation.
Described control unit 104 can be also used in the outdoor fan commutation operation for controlling the heat pump unit
Afterwards, determine whether the current operating parameter after the outdoor fan commutation operation is greater than or equal to joining into defrost for setting
Number.Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter.The concrete function of the control unit 104 and place
Reason sees also step S210.
Described control unit 104, if the current operating parameter that can be also used for after the outdoor fan commutation operation is big
In or be equal to and described enter defrost parameter, then defrost stage after the heating stage in the current heating operation period
(entering the defrost stage in the current heating operation period by the heating stage) described heat pump unit entrance of control
Frost, so that the heating stage in the current heating operation period terminates and the defrost stage, and exists in the heat pump unit
When the defrost stage in the current heating operation period starts, the heat pump unit is made to enter the defrost (change as entered setting
White mode).The concrete function of the control unit 104 and processing see also step S220.
It optionally, can also include: described control unit 104, if can be also used for the outdoor fan commutation operation
Current operating parameter afterwards enters defrost parameter less than described, then maintains the heat pump unit in the current heating operation period
In the heating stage continue to run, until the current heating operation period in current operating parameter further raise to above
Or the entrance equal to setting enters defrost parameter, then the heating stage in the current heating operation period terminates namely described
The defrost stage in the current heating operation period just controls the heat pump unit and enters the defrost (defrost as entered setting
Mode).
Such as: unit sender parameter is continued to test, is compared with mainboard process control parameter, if in control range
Inside then remain in operation；If necessary to enter defrost, then enter the defrost pattern of setting.
Such as: example as shown in Figure 5 and Figure 6 closes blower, four-way reversing valve switching, into defrosting control.
Alternatively, described control unit 104 is gone back after the wind deflector switching air flow direction of the control heat pump unit
It may include: that the determining wind deflector switches the entrance whether current operating parameter after air flows to is greater than or equal to setting
Defrost parameter；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；If the wind deflector switches air stream
Enter defrost parameter more than or equal to described to current operating parameter later, then the institute in the current heating operation period
Heat pump unit described in defrost stage control after stating the heating stage enters defrost.
As a result, by further postrun current according to commutating after the outdoor fan commutation operation of control heat pump unit
Operating parameter determines whether heat pump unit reaches defrost opportunity, the timely defrost if reaching defrost opportunity, to guarantee heat pump unit
It is reliable and safe operation.
In an optional embodiment, described control unit 104 the control heat pump unit enter defrost it
It afterwards, can also include: the process for controlling heat pump unit after making heat pump unit enter defrost and exiting defrost.
Described control unit 104 can be also used for determining the current operating parameter that the heat pump unit enters after defrost
Whether be less than or equal to setting exits defrost parameter.The concrete function of the control unit 104 and processing see also step S310.
Described control unit 104, if it is small to can be also used for the current operating parameter that the heat pump unit enters after defrost
Defrost parameter is exited in or equal to described, then controls the heat pump unit and exits defrost, so that the current heating operation period
In the defrost stage terminate and the heating stage in next heating operation period in the current heating operation period, and
At the end of defrost stage of the heat pump unit in the current heating operation period, the heat pump unit is made to exit defrost
(such as exiting the defrost pattern of setting).The concrete function of the control unit 104 and processing see also step S320.
Optionally, can also include: described control unit 104, if can be also used for the heat pump unit enter defrost it
Current operating parameter afterwards exits defrost parameter described in being greater than, then maintains the heat pump unit in the current heating operation period
In the defrost stage continue defrost, until the defrost stage in the heat pump unit continuation defrost, make the continuation
If current operating parameter is reduced to less than or equal to described when exiting defrost parameter during defrost, the heat pump machine is just controlled
Group exits defrost (such as exiting the defrost pattern of setting).
Such as: example as shown in Figure 5 and Figure 6 is again introduced into heating operation after exiting, blower is to rotate in the forward direction.
As a result, by control heat pump unit enter defrost after further according to defrost during current operating parameter it is true
It is fixed that whether defrost finishes, to exit defrost in time when defrost finishes, avoid continuing after defrost defrost increase energy consumption,
Normal heating operation is influenced, so that the timeliness of defrosting control is good, high reliablity, it is also ensured that heating operates normally to mention
Rise the comfortable sexual experience of user.
In an optional embodiment, outdoor fan of the described control unit 104 in the control heat pump unit
After commutation operation, it can also include: described control unit 104, can be also used for the outdoor fan for making the heat pump unit
Current rotating speed switches to and the corresponding setting speed in corresponding direction of rotation after commutation.
Such as: blower positive and negative rotation control technology is used, the multiple varying cyclically of blower fan turning and revolving speed, air stream are passed through
It is also changed correspondingly to flow velocity, so that the windward side of heat exchanger and the uniform frosting of leeward, bring heating operation cycle stretch-out, mention
Heating capacity and efficiency (such as multiple rows of heat exchanger better effect) are risen, reduces the frequency for carrying out defrost, it is more steady to be heated space temperature
It is fixed.
Such as: blower positive and negative rotation control technology is used, blower fan turning and revolving speed are controlled, so that heat exchanger is in low temperature environment
Lower windward side and leeward frosting are uniform, promote the overall heat exchange performance at least 10% or more of heat exchanger, extend heating operation week
20% or more phase, operation heating temperature fluctuation is more stable, and heating capacity is more sufficient, more energy efficient.
Alternatively, described control unit 104 is gone back after the wind deflector switching air flow direction of the control heat pump unit
It may include: the current wind-guiding angle for making the wind deflector of the heat pump unit, switch to corresponding to after switching air flow direction
The corresponding setting wind-guiding angle in wind-guiding direction.
As a result, by further controlling the revolving speed of outdoor fan after the outdoor fan commutation operation of control heat pump unit,
Heating effect can be preferably promoted, user experience is further promoted.
The processing and function realized by the device of the present embodiment essentially correspond to earlier figures 1 to method shown in Fig. 3
Embodiment, principle and example, therefore not detailed place in the description of the present embodiment may refer to mutually speaking on somebody's behalf in previous embodiment
Bright, this will not be repeated here.
Through a large amount of verification experimental verification, wind is made by using blower positive and negative rotation control technology using technical solution of the present invention
Machine turns to and the multiple varying cyclically of revolving speed, and air flow direction and flow velocity also change correspondingly, so that the windward side of heat exchanger and leeward
The uniform frosting in face brings heating operation cycle stretch-out, promotes heating capacity and efficiency, reduces the frequency for carrying out defrost, is heated
Space temperature is more stable.
According to an embodiment of the invention, additionally providing a kind of heat pump unit of the control device corresponding to heat pump unit.It should
Heat pump unit may include: the control device of above-described heat pump unit.
In existing heat pump techniques, wind cooling cold and hot water or cold and hot wind system, blower fixation are rotated with a direction, and convection current is changed
The heat exchanger of heat produces windward side (air inflow face) and leeward leeward (air effluent face) windward, in low-temperature heat source
The heat exchanger of side (such as 15 DEG C of environment temperature or less) heat exchange will appear frosting, and frosting is most thick for windward side, corresponding leeward
Face is substantially without frosting, and frosting has blocked air flowing, and heat exchanger heat exchange property deteriorates rapidly, and the heating operation time significantly contracts
Short, heat exchanger heat exchange property can not play completely.
Aiming at the problem that heat exchange property is unable to give full play in existing heat pump techniques, the solution of the present invention can be by making
Blower antiport makes full use of heat exchanger two sides to carry out promotion heating so that the leeward side of original heat exchanger becomes windward side
The cycle of operation promotes low-temperature heating capacity and efficiency.
In an optional embodiment, present invention employs blower positive and negative rotation control technologies, by blower fan turning and turn
The multiple varying cyclically of speed, air flow direction and flow velocity also change correspondingly, so that the windward side of heat exchanger and the uniform frosting of leeward,
Heating operation cycle stretch-out is brought, heating capacity and efficiency (such as multiple rows of heat exchanger better effect) are promoted, reduces and carries out defrost
It is more stable to be heated space temperature for frequency.
Such as: present invention employs blower positive and negative rotation control technologies, blower fan turning and revolving speed are controlled, so that heat exchanger is low
Windward side and leeward frosting are uniform under warm environment, promote the overall heat exchange performance at least 10% or more of heat exchanger, extend heating
20% or more the cycle of operation, operation heating temperature fluctuation is more stable, and heating capacity is more sufficient, more energy efficient.
Such as: specific revolving speed is controlled by specific model according to test condition.
Such as: blower fan turning process needs to undergo the process stopped to turning to, and the speed of this switching is by control implement body
Setting, can be switched fast in 0~30min.By currently tying frost thickness judgement, when knot frost thickness reaches 2mm, wind
Machine revolving speed drops to 0 according to the speed of 50r/s by current rotating speed, is then increased to the second direction of rotation according to 100r/s speed
Revolving speed.
Such as: it can be judged by the pressure between heat exchanger and blower, under usual operating status, pressure < atmospheric pressure, when
After frosting, rate of air circulation reduces, and negative pressure is lower, judges whether to enter steering by detection negative pressure variation amount or rate of change
Control.
Such as: it can be changed by the torque of blower, the torque value being switched on using first time is foundation, frosting rear fan torque
It is promoted, by torque variation to determine whether commutation or defrosting should be entered.
Such as: it can be judged by heat exchanger tube temperature rate of change, heating for the first time and defrost period carry out data acquisition,
Judged by tube temperature rate of change, can be determined that when tube temperature rate of change is basically unchanged very thick for frosting, thus judged
Into defrosting, and then 20~120min of pushing forward heat cycle enters commutation control.
In an optional specific embodiment, referring to figs. 5 and 6 shown in example, the solution of the present invention can pass through
System operating temperature and pressure and other parameters judge whether unit needs to enter blower fan turning and adjust.
Specifically, it is an object of the present invention to promote the exchange capability of heat under unit frozen condition, measure is by changing blower
Rotation turns to and changes the uniform frosting that revolving speed reaches heat exchanger windward side and leeward (as shown in Figure 7), extends heating operation
Time effectively promotes defrost speed, more effective particularly with multiple rows of heat exchanger.
Wherein, by making heat exchanger windward side and the uniform frosting of leeward, the heating operation time can be extended, promote defrost
The principle of speed is described as follows.
First, achieving the purpose that heat exchange by the heat exchanger that ventilates, air flows through heat exchanger for air cooling heat exchanger
Process, temperature be gradually decrease or it is raised.For heat pump unit, air flows through low-temperature side heat exchanger, air themperature
It is also with reduction；From heat exchange angle, the heat-transfer surface heat transfer temperature difference that air preferentially enters is big, and heat exchange efficiency is high；And it is secondary entrance or
The temperature that person leaves the air of heat exchanger is smaller with temperature difference of heat exchanger, and heat exchange efficiency is low.So being introduced into the heat exchanger one of air
Face is easier to enter frosting, and checker flow direction just improves overall heat exchange effect.
Second, the effect of air moisture processing is different, and if blower is rotated according to preset first direction, air
Into the windward side of heat exchanger, the moisture in air is condensed by windward side and forms frost；When flowing further to leeward, in air
Moisture is less, so the frosting on leeward is with regard to fewer.As time went on, the frost layer on windward side is more and more thicker, envelope
The runner for having blocked up heat exchanger leads to not exchange heat, and can only be introduced into defrost.
And in the solution of the present invention, through control blower when preset first direction rotates, the frosting of windward side
When reaching the air flow channel < 95% of obstruction heat exchanger, switch the preset second direction of blower fan turning at this time (such as with first
The opposite second direction in direction), air is introduced into the second face of heat exchanger, and heat exchange occurs mainly in the second face, and the second face is continued again
Frosting enters back into defrost circulation until that can not exchange heat, improves heat exchange efficiency on the whole in this way, extend the defrost time.
Further, in the solution of the present invention, blower fan turning control can be taken in preset first direction and pre-
Cyclic switching between the second direction first set, two faces that also can achieve heat exchanger more fully exchange heat.
In an optional specific example, the method for promotion low temperature frozen condition system capability of the invention may include
Following steps.
Step 1 acquires environment temperature, heat exchanger tube temperature, compressor operating time, system fortune by heat pump unit sensor
Row pressure, the parameters such as air intake duct tube temperature, exhaust pipe tube temperature, unit running current judge that the frosting degree in the first face of heat exchanger is true
Whether recognize, which enter the second face, exchanges heat；If yes then enter next step, (such as step 2) otherwise keeps current state operation.
Wherein, for determine the first face frosting degree mode, may include:
Tube temperature variation degree and runing time (2~300min of value) after booting after detection booting；When tube temperature decline temperature
At 2~10 DEG C, it is believed that there has been frosting in the first face, but does not influence air and flow through, and enters switching blower fan turning at this time and enters
The heat exchange of second face.Judge that the second face defrost situation is the same with the first face, such circular flow enters the tube temperature of defrost until meeting
With the conditions such as suction temperature.
Step 2 closes blower, and reverse starting is run again later, and wind direction is reversed at this time, and frosting is again at the back side of heat exchanger
It initially forms.Unit sender parameter is continued to test, is compared with mainboard process control parameter, if in control range
It remains in operation；If necessary to enter defrost, then enter step 3 (such as step 3).
Wherein, unit sender parameter can specifically include: running frequency, rotation speed of fan, line temperature, suction temperature,
Compressor continuous operating time and environment temperature etc..
Step 3 closes blower, four-way reversing valve switching, into defrosting control.
Step 4 is again introduced into heating operation after exiting, blower is to rotate in the forward direction.
Blower can be controlled process control in heating operation with random groups and be introduced into positive or reversed, and blower fan turning is cut
Compressor can stop (can also can also carrying out frequency during such as continuous operation with continuous operation and changing control) during changing.
Optionally, during the operation of heat pump unit continuous heating, blower fan turning can repeatedly switch, and finally enter item with defrost
Part determines.
Such as: within a continuous heating cycle of operation, blower can be made first to operate with first direction, transported in a first direction
Can decide whether to reach under turning the first condition for being switched to second direction (such as: whether can be reached with the first frosting degree
Whether switching condition such as 0.5mm can also reach switching time such as 10 minutes with runing time).Under operating in a first direction
When reaching the condition for being switched to second direction, it can be switched to second direction operating, then continue to sentence under second direction operating
It is disconnected whether reach be switched to first direction second condition (such as: whether switching condition can be reached such as with the second frosting degree
0.5mm or 1.0mm but be less than 2.0mm, whether can also be reached with runing time switching time such as this operation 10 minutes or even
Reforwarding row 20 minutes but less than 40 minutes).And so on, when frosting degree reaches, into defrost condition, (such as frosting degree reaches
Reach 2.0mm or more into defrost condition such as frosting thickness or continuous operating time reach the defrost time such as 40 minutes), from
And complete a heating operation period.
As it can be seen that the solution of the present invention, the beneficial effect that at least can achieve may include:
(1) the heat exchange property of heat exchanger frosting environmental working condition is promoted.
(2) extend the heating operation period, reduce frequent switching refrigerant flow direction defrost bring temperature fluctuation.Because common
Defrost be to switch refrigerant flow direction to realize that high temperature refrigerant flows to the heat exchanger of frosting, in order to avoid heat is not empty during this
Gas is taken away, abundant defrosting, take defrost run during stop fan operation, if frosting quickly the case where will need frequently into
Enter defrost, and then it is because during heating operation that blower stop frequency, which increases temperature fluctuation, high temperature fluid flow direction needs to heat
Space；And during defrost, refrigerant is reversed, and be heated that space passes through is low-temperature refrigerant, reduce heating space or
The temperature of object.Frequent defrost means that temperature fluctuation also frequently occurs, and the solution of the present invention can reduce due to frequent defrost
And bring temperature fluctuation.
The processing and function realized by the heat pump unit of the present embodiment essentially correspond to aforementioned device shown in Fig. 4
Embodiment, principle and example, therefore not detailed place in the description of the present embodiment, may refer to mutually speaking on somebody's behalf in previous embodiment
Bright, this will not be repeated here.
Through a large amount of verification experimental verification, using technical solution of the present invention, by using blower positive and negative rotation control technology, control
Blower fan turning and revolving speed promote the entirety of heat exchanger so that windward side and leeward frosting are uniform at low ambient temperatures for heat exchanger
Heat exchange property extends the heating operation period, and operation heating temperature fluctuation is more stable, and heating capacity is more sufficient, more energy efficient.
According to an embodiment of the invention, additionally providing a kind of storage medium of the control method corresponding to heat pump unit.It should
Storage medium may include: that a plurality of instruction is stored in the storage medium；The a plurality of instruction, for being loaded by processor
And execute the control method of above-described heat pump unit.
The processing and function realized by the storage medium of the present embodiment essentially correspond to earlier figures 1 to shown in Fig. 3
Embodiment, principle and the example of method, therefore not detailed place in the description of the present embodiment, may refer to the phase in previous embodiment
It speaks on somebody's behalf bright, this will not be repeated here.
Through a large amount of verification experimental verification, using technical solution of the present invention, by using blower positive and negative rotation control technology, control
The multiple varying cyclically of blower fan turning and revolving speed, can promote the heat exchange property of heat exchanger frosting environmental working condition.
According to an embodiment of the invention, additionally providing a kind of heat pump unit of the control method corresponding to heat pump unit.It should
Heat pump unit may include: above-described storage medium, and for executing a plurality of instruction stored in the storage medium
Processor.
Optionally, the heat pump unit may include: processor, for executing a plurality of instruction；Memory is more for storing
Item instruction；Wherein, a plurality of instruction for being stored by the memory, and is loaded by the processor and executes the above institute
The control method for the heat pump unit stated.
The processing and function realized by the heat pump unit of the present embodiment essentially correspond to earlier figures 1 to shown in Fig. 3
Embodiment, principle and the example of method, therefore not detailed place in the description of the present embodiment, may refer to the phase in previous embodiment
It speaks on somebody's behalf bright, this will not be repeated here.
Through a large amount of verification experimental verification, using technical solution of the present invention, by using blower positive and negative rotation control technology, control
The multiple varying cyclically of blower fan turning and revolving speed extends the heating operation period, reduces the defrost of frequent switching refrigerant flow direction and brings
Temperature fluctuation.
To sum up, it will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be certainly
It combined, be superimposed by ground.
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (12)
1. a kind of control method of heat pump unit characterized by comprising
Obtain the heat pump unit heated in the current heating operation period stage start after current operating parameter；
Determine whether the current operating parameter is greater than or equal to the two-sided frosting commutating parameter of setting；
If the current operating parameter is greater than or equal to the two-sided frosting commutating parameter, described in the heating stage control
The outdoor fan commutation operation of heat pump unit or the wind deflector switching air flow direction of the control heat pump unit.
2. the method according to claim 1, wherein the outdoor of the heat pump unit described in the heating stage control
Blower commutation operation, comprising:
The direction of rotation for controlling the outdoor fan of the heat pump unit switches to the second of setting by the first current direction of rotation
Direction of rotation is run with controlling the outdoor fan by second direction of rotation, is realized described in the heating stage control
The outdoor fan single of heat pump unit, which commutates, to be run；
Wherein, second direction of rotation, comprising: first direction of rotation it is reversed；
Alternatively,
The wind deflector switching air flow direction of the heat pump unit described in the heating stage control, comprising:
The wind-guiding direction for controlling the wind deflector of the heat pump unit switches to the second of setting by the first current wind-guiding direction and leads
The heat pump described in the heating stage control is realized to control the wind deflector by second wind-guiding direction wind-guiding in wind direction
The wind deflector single switching air flow direction of unit；
Wherein, first wind-guiding direction, comprising: the direction different from first wind-guiding direction；First wind-guiding direction,
It include: upward wind-guiding or downward wind-guiding.
3. according to the method described in claim 2, it is characterized in that, controlling the direction of rotation of the outdoor fan of the heat pump unit
The second direction of rotation of setting is switched to by the first current direction of rotation, comprising:
The outdoor fan for controlling the heat pump unit stops being run and then being controlled the heat pump by the first current direction of rotation
The direction of rotation of the outdoor fan of unit is switched to the second direction of rotation of setting by the first current direction of rotation；
Alternatively,
The wind-guiding direction for controlling the wind deflector of the heat pump unit switches to the second of setting by the first current wind-guiding direction and leads
Wind direction, comprising:
The wind deflector for controlling the heat pump unit stops by the first current wind-guiding direction wind-guiding and then the control heat pump machine
The wind-guiding direction of the wind deflector of group is switched to the second wind-guiding direction of setting by the first current wind-guiding direction.
4. according to the method in claim 2 or 3, which is characterized in that the heat pump unit described in the heating stage control
Outdoor fan commutation operation, further includes:
After controlling the outdoor fan by second direction of rotation operation, continue to determine the outdoor fan by described the
Whether the current operating parameter during two direction of rotation are run is greater than or equal to the two-sided frosting commutating parameter, to realize
The outdoor fan circulation commutation operation of the heat pump unit is controlled in the heating step cycle；
Alternatively,
The wind deflector switching air flow direction of the heat pump unit described in the heating stage control, further includes:
After controlling the wind deflector by second wind-guiding direction wind-guiding, continue to determine that the wind deflector is led by described second
Whether the current operating parameter during the wind-guiding of wind direction is greater than or equal to the two-sided frosting commutating parameter, to realize in institute
State the wind deflector cyclic switching air flow direction that heating step cycle controls the heat pump unit.
5. method described in one of -4 according to claim 1, which is characterized in that in the outdoor wind of the control heat pump unit
After machine commutation operation, further includes:
Determine whether the current operating parameter after the outdoor fan commutation operation is greater than or equal to joining into defrost for setting
Number；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；
If the current operating parameter after the outdoor fan commutation operation enters defrost parameter more than or equal to described, in institute
Heat pump unit described in defrost stage control after stating the heating stage in the current heating operation period enters defrost；
Alternatively,
After the wind deflector switching air flow direction of the control heat pump unit, further includes:
Determine whether the current operating parameter after the wind deflector switching air flows to is greater than or equal to the entrance defrost of setting
Parameter；Wherein, the defrost parameter that enters is greater than the two-sided frosting commutating parameter；
If the current operating parameter after the wind deflector switching air flow direction enters defrost parameter more than or equal to described,
Heat pump unit described in the defrost stage control after the heating stage in the current heating operation period enters defrost.
6. according to the method described in claim 5, it is characterized in that, after the control heat pump unit enters defrost,
Further include:
Determine the current operating parameter after the heat pump unit enters defrost whether be less than or equal to setting exit defrost ginseng
Number；
If the current operating parameter that the heat pump unit enters after defrost exits defrost parameter described in being less than or equal to, control
The heat pump unit exits defrost.
7. method described in one of -6 according to claim 1, which is characterized in that in the outdoor wind of the control heat pump unit
After machine commutation operation, further includes:
The current rotating speed for making the outdoor fan of the heat pump unit switches to set corresponding to the corresponding direction of rotation after commutation
Determine revolving speed；
Alternatively,
After the wind deflector switching air flow direction of the control heat pump unit, further includes:
The current wind-guiding angle for making the wind deflector of the heat pump unit switches to and the corresponding wind-guiding side after switching air flow direction
To corresponding setting wind-guiding angle.
8. method described in one of -7 according to claim 1, which is characterized in that the current operating parameter, comprising: current frosting
Degree and/or current operation duration；
The two-sided frosting commutating parameter, comprising: at least one of frosting degree, operation duration；
Wherein,
The current frosting degree, can be by the environment temperature, heat exchanger tube temperature, operating pressure, air intake duct of the heat pump unit
One or more of tube temperature, exhaust pipe tube temperature, running current, running frequency, rotation speed of fan, line temperature determine；And/or
The current operation duration can be determined by the compressor continuous operating time of the heat pump unit.
9. a kind of control device of heat pump unit characterized by comprising
Acquiring unit, the stage that heats for obtaining the heat pump unit in the current heating operation period start after current operation
Parameter；
Control unit, for determining whether the current operating parameter is greater than or equal to the two-sided frosting commutating parameter of setting；
Described control unit, if being also used to the current operating parameter is greater than or equal to the two-sided frosting commutating parameter,
The outdoor fan commutation operation of heat pump unit described in the heating stage control or the wind deflector switching of the control heat pump unit
Air flow direction.
10. a kind of heat pump unit characterized by comprising the control device of heat pump unit as claimed in claim 9.
11. a kind of storage medium, which is characterized in that be stored with a plurality of instruction in the storage medium；The a plurality of instruction, is used for
Loaded by processor and executed the control method of heat pump unit a method as claimed in any one of claims 1-8.
12. a kind of heat pump unit characterized by comprising
Storage medium as claimed in claim 11, and the processing for executing a plurality of instruction stored in the storage medium
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968522.9A CN109297221A (en) | 2018-08-23 | 2018-08-23 | Control method and device of heat pump unit, storage medium and heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968522.9A CN109297221A (en) | 2018-08-23 | 2018-08-23 | Control method and device of heat pump unit, storage medium and heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109297221A true CN109297221A (en) | 2019-02-01 |
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ID=65165625
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968522.9A Pending CN109297221A (en) | 2018-08-23 | 2018-08-23 | Control method and device of heat pump unit, storage medium and heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617603A (en) * | 2019-09-27 | 2019-12-27 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497852A (en) * | 1978-01-18 | 1979-08-02 | Hitachi Ltd | Operation of air conditioner |
| CN1532483A (en) * | 2003-03-18 | 2004-09-29 | 维 储 | Defrosting device of air heat exchanger |
| CN104515330A (en) * | 2013-09-27 | 2015-04-15 | 海尔集团公司 | Method for controlling defrosting operation of air-conditioner |
-
2018
- 2018-08-23 CN CN201810968522.9A patent/CN109297221A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497852A (en) * | 1978-01-18 | 1979-08-02 | Hitachi Ltd | Operation of air conditioner |
| CN1532483A (en) * | 2003-03-18 | 2004-09-29 | 维 储 | Defrosting device of air heat exchanger |
| CN104515330A (en) * | 2013-09-27 | 2015-04-15 | 海尔集团公司 | Method for controlling defrosting operation of air-conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617603A (en) * | 2019-09-27 | 2019-12-27 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and computer-readable storage medium |
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Application publication date: 20190201 |