CN107894061A - Fresh air conditioner-mechanical, defrosting method and computer-readable recording medium - Google Patents
Fresh air conditioner-mechanical, defrosting method and computer-readable recording medium Download PDFInfo
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- CN107894061A CN107894061A CN201710995535.0A CN201710995535A CN107894061A CN 107894061 A CN107894061 A CN 107894061A CN 201710995535 A CN201710995535 A CN 201710995535A CN 107894061 A CN107894061 A CN 107894061A
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- fresh air
- defrost
- mechanical
- pipeline
- air conditioner
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of fresh air conditioner-mechanical, defrosting method and computer-readable recording medium, wherein, fresh air conditioner-mechanical includes:The connected compressor of pipeline, four-way valve, outdoor unit, indoor set, wherein, indoor set includes:Housing, housing include air inlet and exhaust outlet;Indoor heat exchanger and indoor fan in housing, wherein, indoor fan is provided close to the side of air inlet, and indoor fan is used to dry to indoor heat exchanger;And both ends are connected to the fresh air pipeline of air inlet and exhaust outlet respectively;Microcontroller, electrically connected with four-way valve and indoor fan, when microcontroller is used to determine to need defrost in a heating mode, control four-way valve commutates to refrigeration mode, reduces the rotating speed of indoor fan, and turn on fresh air pipeline.By technical scheme, refrigerant can be made to carry out convection heat transfer' heat-transfer by convection with outdoor air by fresh air pipeline, accelerate the heat exchange of refrigerant, so as to accelerate defrost speed, shorten the defrost time.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of fresh air conditioner-mechanical, a kind of defrosting method and a kind of meter
Calculation machine readable storage medium storing program for executing.
Background technology
As the improvement of people's living standards, requirement more and more higher of the people to living environment, IAQ it is good
It is bad, the health of people is directly related to, substantial amounts of family begins to use aeration device.For the electrical home appliances in daily life,
People also increasingly focus on its comfortableness used, and air-conditioning is as a kind of household electrical appliances for improving IAQ, the degree of popularization
More and more higher, the problem of outdoor heat exchanger frosting inevitably occurs during use in winter air-conditioning, the air-conditioning used now exists
During outdoor heat exchanger defrost, indoor heat exchanger temperature is very low, and in order to prevent cold wind to be blown into interior, indoor fan is during defrost
Do not open, system cannot get heat input, and heat caused by compressor operating can only be relied on to supply outside heat exchanger defrosting, defrost
Time is grown, and influences customer experience.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of fresh air conditioner-mechanical.
Another object of the present invention is to propose a kind of defrosting method.
A further object of the present invention is to propose a kind of computer-readable recording medium.
The technical scheme of first aspect present invention proposes a kind of fresh air conditioner-mechanical, including:The connected compressor of pipeline, four
Port valve, outdoor unit, indoor set, wherein, indoor set includes:Housing, housing include air inlet and exhaust outlet;Room in housing
Interior heat exchanger and indoor fan, wherein, indoor fan is provided close to the side of air inlet, and indoor fan is used for indoor heat exchanger
Blowing;And both ends are connected to the fresh air pipeline of air inlet and exhaust outlet respectively;Microcontroller, with four-way valve and indoor fan electricity
Connection, when microcontroller is used to determine to need defrost in a heating mode, control four-way valve commutates to refrigeration mode, reduces indoor
The rotating speed of blower fan, and turn on fresh air pipeline.
In the technical scheme, when microcontroller determines to need defrost, control four-way valve commutates to refrigeration mode, now
Refrigerant absorbs heat in machine indoors, the heat release in outdoor unit, so as to carry out defrost;Microprocessor control indoor fan rotating speed reduces,
Fresh air pipeline is simultaneously turned on, on the one hand indoor fan makes suction pressure of compressor stable, improves fresh air conditioner during defrosting operation
The stability of device work, is on the other hand easy to the circulation of air in fresh air pipeline, outdoor air enters fresh wind tube from air inlet
Road, and convection heat transfer' heat-transfer by convection is carried out with the refrigerant in pipeline, discharged after being exchanged heat from exhaust outlet, now refrigerant is inhaled in fresh air pipeline
The heat of outdoor air is received, so as to quickly carry out defrost;Indoor fan makes the outdoor air in fresh air pipeline circulate always,
The stability of refrigerant heat exchange and the speed of refrigerant heat exchange are added, improves the stability of fresh air conditioner-mechanical defrost process
And defrost speed.
In the above-mentioned technical solutions, it is preferable that housing includes:Gas returning port, electrically connected with microcontroller, gas returning port is provided with
Return air grid;Gas outlet, being electrically connected with microcontroller, gas outlet is provided with air outlet grate, wherein, determine to need in microcontroller
During defrost, close air outlet grate or close air outlet grate and return air grid.
In the technical scheme, when microcontroller determines to need defrost, microprocessor control closes air outlet grate or pass
Air outlet grate and return air grid are closed, when closing air outlet grate and return air grid, cold wind enters to enter the room during can preventing defrost
Interior possibility, reduce influence of the defrosting operation to indoor temperature;When only closing air outlet grate, room air during defrosting operation
Machine is got in from return air inlet and is exchanged heat with refrigerant, and outdoor air is changed by air inlet into fresh air pipeline with refrigerant
Heat, now relative to the scheme for simultaneously closing off air outlet grate and return air grid, refrigerant absorbs heat faster, so as to acceleration
White speed, shorten the defrost time.
In the above-mentioned technical solutions, it is preferable that also include:Temperature sensor, located at outdoor unit outer wall, with microcontroller electricity
Connection, temperature sensor are used to detect outdoor temperature.
In the technical scheme, temperature sensor is used to detect outdoor temperature, so as to provide reference for defrosting operation, is easy to
Defrosting operation is rationally carried out according to outdoor temperature.
In the above-mentioned technical solutions, it is preferable that also include:Auxiliary thermal, located at the side of indoor heat exchanger, with microcontroller
Device electrically connects, and auxiliary thermal is used to, when microcontroller determines to need defrost, heat the refrigerant in indoor heat exchanger;Or
Auxiliary thermal is additionally operable to, when microcontroller determines to need defrost, obtain outdoor temperature corresponding to outdoor unit, small in outdoor temperature
After preset temperature, the refrigerant in indoor heat exchanger is heated.
It is now auxiliary when auxiliary thermal is used to heat refrigerant when it is determined that needing defrost in the technical scheme
Thermal is easy to refrigerant quickly to absorb heat, consequently facilitating accelerating defrosting operation, it is affected so as to reduce defrost to reduce the defrost time
The influence of air-conditioning is used user;When auxiliary thermal determines to need defrost in microcontroller, it is less than default temperature in outdoor temperature
After degree, the refrigerant in indoor heat exchanger is heated, now auxiliary thermal is used to prevent that the speed of defrost is too low, works as outdoor temp
When degree is not less than preset temperature, now refrigerant can carry out the heat exchange of normal speed, the defrost of fresh air conditioner-mechanical with outdoor air
Speed is normal;When outdoor temperature is less than preset temperature, the efficiency of refrigerant and outdoor air heat exchange is too low, fresh air conditioner-mechanical defrost
Speed it is excessively slow, now auxiliary thermal work, make the defrost speed of fresh air conditioner-mechanical normal by carrying out heating to refrigerant, can
Power consumption is reduced in the case where making fresh air conditioner-mechanical defrost speed be maintained in normal range (NR).
In the above-mentioned technical solutions, it is preferable that outdoor unit includes the outdoor fan electrically connected with microcontroller, in microcontroller
Device determines that outdoor fan switches to stopped status when needing defrost.
In the technical scheme, determine that outdoor fan switches to stopped status, now room when needing defrost in microcontroller
Air flow around outer machine slows down, and outdoor unit and the speed of outside air heat exchange reduce, empty outside room when can reduce defrost
Absorption of the gas to heat in outdoor unit, the loss of heat in outdoor unit is reduced, be easy to improve defrost speed.
In the above-mentioned technical solutions, it is preferable that fresh air pipeline specifically includes:Air inlet pipeline, one end connection of air inlet pipeline
To air inlet, the other end of air inlet pipeline is connected to outside atmosphere, and air inlet pipeline is provided with the first valve;Exhaust pipeline, exhaust duct
The one end on road is connected to exhaust outlet, and the other end of exhaust pipeline is connected to outside atmosphere, and exhaust pipeline is provided with the second valve.
In the technical scheme, the first valve and the second valve determine the break-make of fresh air pipeline, determine to carry out in microcontroller
During defrosting operation, the first valve and the second valve are both turned on, and fresh air pipeline conducting, outdoor air enters fresh air pipeline by air inlet pipeline
And with discharging fresh air pipeline from air exhaust passage after the refrigerant progress convection heat transfer' heat-transfer by convection in pipeline.
In the above-mentioned technical solutions, it is preferable that microcontroller also electrically connects with the first valve and the second valve, passes through control first
Conducting air inlet pipeline and exhaust pipeline are realized in the unlatching of valve and the second valve.
In the technical scheme, microcontroller electrically connects with the first valve and the second valve, so as to control the first valve and
The break-make of two valves, so as to when microcontroller determines to need defrost, control the first valve and the second valve to open and realize conducting blast pipe
Road and exhaust pipeline, so as to automatically open up fresh air pipeline in defrosting operation, it is easy to quickly carry out defrosting operation.
In the above-mentioned technical solutions, it is preferable that also include:Microcontroller is additionally operable to, it is determined that after the completion of defrost, control four
Port valve commutates to heating mode, adjusts the rotating speed before rotating speed to the defrost of indoor fan, and control fresh air pipeline to be adjusted to defrost
Preceding on off operating mode.
In the technical scheme, after the completion of defrost, microprocessor control four-way valve commutates to heating mode, and adjusts room
Rotating speed before the rotating speed of inner blower to defrost, and control fresh air pipeline to be adjusted to the on off operating mode before defrost, now fresh air conditioner
Device recovers the working condition to defrosting operation and carries out normal work.
The technical scheme of second aspect of the present invention proposes a kind of defrosting method, including:Obtain the operation of fresh air conditioner-mechanical
Parameter;When operational factor meets default defrost condition, control fresh air conditioner-mechanical switches to refrigeration mode, closes fresh air conditioner-mechanical
Outdoor fan, reduce the rotating speed of the indoor fan of fresh air conditioner-mechanical, and turn on fresh air pipeline, until operational factor meet it is default
After exit criteria, defrost is completed.
In the technical scheme, the operational factor of fresh air conditioner-mechanical is obtained first, so as to determine whether according to operational factor
Defrosting operation is carried out, when operational factor meets default defrost condition, control fresh air conditioner-mechanical switches to refrigeration mode, now cold
Matchmaker is absorbed heat in machine indoors, the heat release in outdoor unit, so as to carry out defrost;The outdoor fan of fresh air conditioner-mechanical is closed, now room
Air flow around outer machine slows down, and outdoor unit and the speed of outside air heat exchange reduce, empty outside room when can reduce defrost
Absorption of the gas to heat in outdoor unit, the loss of heat in outdoor unit is reduced, be easy to improve defrost speed;Reduce fresh air conditioner-mechanical
Indoor fan rotating speed, and turn on fresh air pipeline, on the one hand indoor fan makes suction pressure of compressor stable, improve defrost behaviour
The stability that fresh air conditioner-mechanical works during work, is on the other hand easy to the circulation of air in fresh air pipeline, and outdoor air is from entering
Gas port enters fresh air pipeline, and carries out convection heat transfer' heat-transfer by convection with the refrigerant in pipeline, is discharged after being exchanged heat from exhaust outlet, now refrigerant
The heat of outdoor air is absorbed in fresh air pipeline, so as to be smoothed out defrost;Indoor fan makes the sky in fresh air pipeline
Gas circulates always, the stability of refrigerant heat exchange and the speed of refrigerant heat exchange is added, so as to improve fresh air conditioner-mechanical
The stability of defrost process and the speed of defrost, until after operational factor meets default exit criteria, complete defrost.
In the above-mentioned technical solutions, it is preferable that also include:When operational factor meets default defrost condition, fresh air is determined
The outdoor environment temperature of air conditioner;If outdoor environment temperature is less than preset temperature, opens and changed located at the interior of fresh air conditioner-mechanical
The auxiliary thermal of hot device side, until after operational factor meets default exit criteria, close auxiliary thermal.
In the technical scheme, when operational factor meets default defrost condition, the outdoor environment of fresh air conditioner-mechanical is determined
Temperature, then outdoor environment temperature and preset temperature are contrasted, if outdoor environment temperature is less than preset temperature, unlatching is set
Auxiliary thermal in the indoor heat exchanger side of fresh air conditioner-mechanical, now refrigerant and the efficiency of outdoor air heat exchange are too low, fresh air
The speed of air conditioner defrost is excessively slow, and auxiliary thermal makes the defrost speed of fresh air conditioner-mechanical normal by carrying out heating to refrigerant, directly
After meeting default exit criteria to operational factor, i.e., after the completion of defrosting operation, auxiliary thermal is closed, auxiliary thermal is in defrost speed
When too low defrost speed is improved by heating refrigerant.
In the above-mentioned technical solutions, it is preferable that also include:When operational factor meets default defrost condition, in close chamber
The air outlet of machine or the air outlet and return air inlet for closing indoor set.
In the technical scheme, when operational factor meets default defrost condition, that is, when needing to carry out defrosting operation, close
The air outlet of indoor set or the air outlet and return air inlet for closing indoor set.When the air outlet and return air inlet of closing indoor set
When, the possibility that cold wind is got in during defrost can be prevented, reduces influence of the defrosting operation to indoor temperature;When only closing
When closing the air outlet of indoor set, room air gets in machine from return air inlet and exchanged heat with refrigerant during defrosting operation, outdoor
Air is exchanged heat by air inlet into fresh air pipeline with refrigerant, and now refrigerant absorbs heat faster, so as to acceleration
White speed, shorten the defrost time.
The technical scheme of third aspect present invention proposes a kind of computer-readable recording medium, is stored thereon with computer
Program, the defrosting method of any one of above-mentioned technical proposal is realized when computer program is executed by processor.
In the technical scheme, when the computer program stored on computer-readable storage medium is performed, it can realize above-mentioned
Defrosting method any one of technical scheme, the heat exchange of refrigerant can be accelerated by fresh air pipeline, so as to accelerate defrost speed
Degree, shorten the defrost time, while influence of the defrosting operation to indoor temperature can also be reduced.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
Fig. 1 shows the front view of the indoor set of the fresh air conditioner-mechanical of embodiments of the invention 3;
Fig. 2 shows the top view of the indoor set of the fresh air conditioner-mechanical of embodiments of the invention 3;
Fig. 3 shows the scheme of installation of the indoor set of the fresh air conditioner-mechanical of embodiments of the invention 7;
Fig. 4 shows the schematic flow sheet of 9 defrosting method according to an embodiment of the invention;
Fig. 5 shows the schematic flow sheet of 9 defrosting method according to an embodiment of the invention.
Wherein, corresponding relations of the Fig. 1 into Fig. 5 between reference and component names is:
10 fresh air conditioner-mechanicals, 102 indoor sets, 1022 housings, 1024 gas outlets, 1026 air outlet grates, 1028 gas returning ports,
1030 air return grills, 1032 indoor fans, 1034 air inlet pipelines, 1,036 first valves, 1038 exhaust pipelines, 1,040 second valves.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to which the above objects, features and advantages of the present invention can be more clearly understood that
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Described referring to Fig. 1 to Fig. 5 according to some embodiments of the present invention.
Embodiment 1:
The present embodiment proposes a kind of fresh air conditioner-mechanical 10, including:The connected compressor of pipeline, four-way valve, outdoor unit, room
Interior machine 102, wherein, indoor set 102 includes:Housing 1022, housing 1022 include air inlet and exhaust outlet;In housing 1022
Indoor heat exchanger and indoor fan 1032, wherein, indoor fan 1032 is provided close to the side of air inlet, indoor fan 1032
For being dried to indoor heat exchanger;And both ends are connected to the fresh air pipeline of air inlet and exhaust outlet respectively;Microcontroller, with four-way
Valve and indoor fan 1032 electrically connect, and when microcontroller is used to determine to need defrost in a heating mode, control four-way valve changes
To refrigeration mode, the rotating speed of indoor fan 1032 is reduced, and turn on fresh air pipeline.
In the present embodiment, when microcontroller determines to need defrost, control four-way valve commutates to refrigeration mode, now refrigerant
Absorbed heat indoors in machine 102, the heat release in outdoor unit, so as to carry out defrost;The rotating speed of microprocessor control indoor fan 1032 drops
It is low, fresh air pipeline is simultaneously turned on, the one side of indoor fan 1032 makes suction pressure of compressor stable, new during improving defrosting operation
The stability that wind air conditioner 10 works, is on the other hand easy to the circulation of air in fresh air pipeline, outdoor air enters from air inlet
Enter fresh air pipeline, and convection heat transfer' heat-transfer by convection is carried out with the refrigerant in pipeline, discharged after being exchanged heat from exhaust outlet, now refrigerant is in fresh air
The heat of outdoor air is absorbed in pipeline, so as to quickly carry out defrost;Indoor fan 1032 makes the air in fresh air pipeline
Circulate always, add the stability of refrigerant heat exchange, so as to improve the stability of the defrost process of fresh air conditioner-mechanical 10.
Embodiment 2:
On the basis of embodiment 1, housing 1022 includes:Gas returning port 1028, is electrically connected with microcontroller, gas returning port 1028
It is provided with return air grid;Gas outlet 1024, is electrically connected with microcontroller, and gas outlet 1024 is provided with air outlet grate, wherein, micro-
When controller determines to need defrost, air outlet grate and return air grid are closed.
In the present embodiment, when microcontroller determines to need defrost, microprocessor control is closed air outlet grate or closed out
Style grid and return air grid, when closing air outlet grate and during return air grid, it can prevent that cold wind during defrost from getting in
Possibility, reduce influence of the defrosting operation to indoor temperature.
Embodiment 3:
On the basis of embodiment 2, when microcontroller determines to need defrost, air outlet grate is closed.
As depicted in figs. 1 and 2, in the present embodiment, when only closing air outlet grate, room air is from return air during defrosting operation
Mouth gets in machine 102 and exchanged heat with refrigerant, and outdoor air is exchanged heat by air inlet into fresh air pipeline with refrigerant,
Now relative to air outlet grate and return air grid is simultaneously closed off, refrigerant absorbs heat faster, so as to accelerate defrost speed, contracting
The short defrost time.
Embodiment 4:
On the basis of embodiment 2 or 3, auxiliary thermal, located at the side of indoor heat exchanger, electrically connected with microcontroller,
Auxiliary thermal is used to, when microcontroller determines to need defrost, heat the refrigerant in indoor heat exchanger.
In the present embodiment, when microcontroller determines to need defrost, the refrigerant in auxiliary thermal heat exchanging device is heated,
Consequently facilitating refrigerant quickly absorbs heat, accelerate defrosting operation, reducing the defrost time, defrost is affected to be used user so as to reduce
The influence of air-conditioning.
Embodiment 5:
On the basis of embodiment 2 or 3, in addition to:Temperature sensor, located at outdoor unit outer wall, it is electrically connected with microcontroller
Connect, temperature sensor is used to detect outdoor temperature;And auxiliary thermal, located at the side of indoor heat exchanger, with microcontroller electricity
Connection, auxiliary thermal are used to, when microcontroller determines to need defrost, outdoor temperature corresponding to outdoor unit is obtained, in outdoor temperature
After preset temperature, the refrigerant in indoor heat exchanger is heated.
In the present embodiment, temperature sensor is used to detect outdoor temperature, when outdoor temperature is not less than preset temperature, now
Refrigerant can carry out the heat exchange of normal speed with outdoor air, and the defrost speed of fresh air conditioner-mechanical 10 is normal;When outdoor temperature is low
When preset temperature, the efficiency of refrigerant and outdoor air heat exchange is too low, and the speed of the defrost of fresh air conditioner-mechanical 10 is excessively slow, now auxiliary heat
Device works, and makes the defrost speed of fresh air conditioner-mechanical 10 normal by carrying out heating to refrigerant, can make fresh air conditioner-mechanical 10
Defrost speed reduces power consumption in the case of being maintained in normal range (NR).
Embodiment 6:
On the basis of embodiment 4 or 5, outdoor unit includes the outdoor fan electrically connected with microcontroller, in microcontroller
It is determined that when needing defrost, outdoor fan switches to stopped status.
In the present embodiment, determine that outdoor fan switches to stopped status, now outdoor unit when needing defrost in microcontroller
The air flow of surrounding slows down, and outdoor unit and the speed of outside air heat exchange reduce, outdoor air pair when can reduce defrost
The absorption of heat in outdoor unit, the loss of heat in outdoor unit is reduced, be easy to improve defrost speed.
Embodiment 7:
On the basis of embodiment 6, fresh air pipeline specifically includes:Air inlet pipeline 1034, one end of air inlet pipeline 1034 connect
Air inlet is connected to, the other end of air inlet pipeline 1034 is connected to outside atmosphere, and air inlet pipeline 1034 is provided with the first valve 1036;Row
Air pipe line 1038, one end of exhaust pipeline 1038 are connected to exhaust outlet, and the other end of exhaust pipeline 1038 is connected to outside atmosphere,
Exhaust pipeline 1038 is provided with the second valve 1040;Microcontroller also electrically connects with the first valve 1036 and the second valve 1040, passes through control
Conducting air inlet pipeline 1034 and exhaust pipeline 1038 are realized in the unlatching for making the first valve 1036 and the second valve 1040.
As shown in figure 3, in the present embodiment, microcontroller electrically connects with the first valve 1036 and the second valve 1040, so as to
The break-make of the first valve 1036 and the second valve 1040 is controlled, so as to when microcontroller determines to need defrost, control the first valve 1036
Opened with the second valve 1040 and realize conducting air inlet pipeline 1034 and exhaust pipeline 1038, so as to be beaten automatically in defrosting operation
Fresh air pipeline is opened, is easy to quickly carry out defrosting operation.
Embodiment 8:
On the basis of embodiment 7, microcontroller is additionally operable to it is determined that after the completion of defrost, and control four-way valve commutates to heating
Pattern, the rotating speed before rotating speed to the defrost of indoor fan 1032 is adjusted, and control fresh air pipeline to be adjusted to the break-make shape before defrost
State.
In the present embodiment, after the completion of defrost, microprocessor control four-way valve commutates to heating mode, and adjusts indoor wind
Rotating speed before the rotating speed of machine 1032 to defrost, and control fresh air pipeline to be adjusted to the on off operating mode before defrost, now fresh air conditioner
Device 10 recovers the working condition to defrosting operation and carries out normal work.
Embodiment 9:
Fig. 4 shows the schematic flow sheet of the defrosting method of the present embodiment.
As shown in figure 4, a kind of defrosting method, including:
Step S402, obtain the operational factor of fresh air conditioner-mechanical 10;
Step S404, when operational factor meets default defrost condition, control fresh air conditioner-mechanical 10 switches to refrigeration mode,
The outdoor fan of fresh air conditioner-mechanical 10 is closed, reduces the rotating speed of the indoor fan 1032 of fresh air conditioner-mechanical 10, and turn on fresh wind tube
Road, until after operational factor meets default exit criteria, complete defrost.
In the present embodiment, step S402 obtains the operational factor of fresh air conditioner-mechanical 10, so as to be according to operational factor determination
No carry out defrosting operation, step S404, when operational factor meets default defrost condition, control fresh air conditioner-mechanical 10 switches to system
Chill formula, the temperature that defrost condition is temperature sensor detection is preset in the present embodiment reach -2 and spend and kept for 40 minutes, now
Refrigerant absorbs heat in machine 102 indoors, the heat release in outdoor unit, so as to carry out defrost;The outdoor fan of fresh air conditioner-mechanical 10 is closed,
Now the air flow around outdoor unit slows down, and outdoor unit and the speed of outside air heat exchange reduce, when can reduce defrost
Absorption of the outdoor air to heat in outdoor unit, the loss of heat in outdoor unit is reduced, be easy to improve defrost speed;Reduce fresh air
The rotating speed of the indoor fan 1032 of air conditioner 10, and fresh air pipeline is turned on, the one side of indoor fan 1032 makes compressor air suction pressure
Power is stable, the stability that fresh air conditioner-mechanical 10 works during improving defrosting operation, is on the other hand easy to air in fresh air pipeline
Circulation, outdoor air enter fresh air pipeline from air inlet, and with the refrigerant progress convection heat transfer' heat-transfer by convection in pipeline, after being exchanged heat from
Exhaust outlet is discharged, and now refrigerant absorbs the heat of outdoor air in fresh air pipeline, so as to be smoothed out defrost;Indoor wind
Machine 1032 makes the air in fresh air pipeline circulate always, adds the stability of refrigerant heat exchange, so as to improve fresh air conditioner
The stability of the defrost process of device 10.Until after operational factor meets default exit criteria, defrost is completed.
Embodiment 10:
On the basis of embodiment 9, when operational factor meets default defrost condition, the outdoor of fresh air conditioner-mechanical 10 is determined
Environment temperature;If outdoor environment temperature is less than preset temperature, open located at the indoor heat exchanger side of fresh air conditioner-mechanical 10
Auxiliary thermal, until after operational factor meets default exit criteria, close auxiliary thermal.
In the present embodiment, when outdoor temperature is less than preset temperature, now refrigerant and the efficiency of outdoor air heat exchange are too low, newly
The speed of the defrost of wind air conditioner 10 is excessively slow, and auxiliary thermal makes the defrost speed of fresh air conditioner-mechanical 10 just by carrying out heating to refrigerant
Often, until operational factor meets after presetting exit criteria, i.e., after the completion of defrosting operation, auxiliary thermal is closed, auxiliary thermal is being changed
When white speed is too low defrost speed is improved by heating refrigerant.
Embodiment 11:
On the basis of embodiment 10, in addition to:When operational factor meets default defrost condition, indoor set 102 is closed
Air outlet and return air inlet.
In the present embodiment, when operational factor meets default defrost condition, that is, when needing to carry out defrosting operation, in close chamber
The air outlet of machine 102 or the air outlet and return air inlet for closing indoor set 102, cold wind is got in during can preventing defrost
Possibility, reduce influence of the defrosting operation to indoor temperature.
Embodiment 12:
On the basis of embodiment 11, in addition to:When operational factor meets default defrost condition, indoor set 102 is closed
Air outlet.
In the present embodiment, when operational factor meets default defrost condition, that is, when needing to carry out defrosting operation, when only closing
During the air outlet of indoor set 102, room air gets in machine 102 from return air inlet and exchanged heat with refrigerant during defrosting operation,
Outdoor air is exchanged heat by air inlet into fresh air pipeline with refrigerant, and now refrigerant absorbs heat faster, so as to add
Fast defrost speed, shorten the defrost time.
Embodiment 13:
Fig. 5 shows the schematic flow sheet of the defrosting method of the present embodiment.
As shown in figure 5, a kind of defrosting method, including:
Step S502, obtain the operational factor of fresh air conditioner-mechanical 10;
Step S504, judges whether operational factor meets defrost condition;
If the determination result is YES, then step S506 is performed, control fresh air conditioner-mechanical 10 switches to refrigeration mode, closes fresh air
The outdoor fan of air conditioner 10, the rotating speed of the indoor fan 1032 of fresh air conditioner-mechanical 10 is reduced, turn on fresh air pipeline, close air-out
Mouth and the outdoor temperature for determining fresh air conditioner;
Step S508, judges whether outdoor temperature is less than preset temperature, if the determination result is YES, then performs step S510,
Open the auxiliary thermal located at heat exchanger side in fresh air conditioner-mechanical 10;
Step S512 judges whether parameter preset meets default exit criteria;
If the determination result is YES, then step S514 is performed, exits defrost.
In the present embodiment, first, step S502, the operational factor of acquisition fresh air conditioner-mechanical 10, so as to according to operation
Parameter judges whether fresh air conditioner-mechanical 10 needs defrost;If the determination result is YES, then step S506 is performed, controls fresh air conditioner-mechanical
10 switch to refrigeration mode, close the outdoor fan of fresh air conditioner-mechanical 10, reduce the indoor fan 1032 of fresh air conditioner-mechanical 10
Rotating speed, fresh air pipeline is turned on, close air outlet and determine the outdoor temperature of fresh air conditioner, now refrigerant is inhaled in machine 102 indoors
Heat, the heat release in outdoor unit, so as to carry out defrost;The outdoor fan of fresh air conditioner-mechanical 10 is closed, now the sky around outdoor unit
Flow of air slows down, and outdoor unit and the speed of outside air heat exchange reduce, and outdoor air is in outdoor unit when can reduce defrost
The absorption of heat, the loss of heat in outdoor unit is reduced, be easy to improve defrost speed;Reduce the indoor fan of fresh air conditioner-mechanical 10
1032 rotating speed, and fresh air pipeline is turned on, the one side of indoor fan 1032 makes suction pressure of compressor stable, improves defrosting operation
The stability that period fresh air conditioner-mechanical 10 works, is on the other hand easy to the circulation of air in fresh air pipeline, and outdoor air is from entering
Gas port enters fresh air pipeline, and carries out convection heat transfer' heat-transfer by convection with the refrigerant in pipeline, is discharged after being exchanged heat from exhaust outlet, now refrigerant
The heat of outdoor air is absorbed in fresh air pipeline, so as to be smoothed out defrost;Indoor fan 1032 makes in fresh air pipeline
Air circulate always, the stability of refrigerant heat exchange is added, so as to improve the stabilization of the defrost process of fresh air conditioner-mechanical 10
Property.The possibility that cold wind is got in can be reduced by closing air outlet, reduce influence of the defrost to indoor temperature;It is determined that outdoor
Temperature;Step S508, judges whether outdoor temperature is less than preset temperature, if the determination result is YES, then performs step S510, opens
The auxiliary thermal of heat exchanger side in fresh air conditioner-mechanical 10;When outdoor temperature is less than preset temperature, refrigerant and outdoor are empty
The efficiency of gas heat exchange is too low, and the speed of the defrost of fresh air conditioner-mechanical 10 is excessively slow, now auxiliary thermal work, by adding to refrigerant
Heat makes the defrost speed of fresh air conditioner-mechanical 10 normal, the defrost speed of fresh air conditioner-mechanical 10 can be made to be maintained in normal range (NR)
In the case of reduce power consumption;Step S512 judges whether parameter preset meets default exit criteria;If the determination result is YES, then perform
Step S514, exits defrost.
Embodiment 14:
The present embodiment proposes a kind of computer-readable recording medium, is stored thereon with computer program, computer program
The defrosting method of any one of above-described embodiment is realized when being executed by processor.
In the present embodiment, when the computer program stored on computer-readable storage medium is performed, above-mentioned implementation can be realized
Defrosting method any one of example, refrigerant can be made to carry out convection heat transfer' heat-transfer by convection with outdoor air by fresh air pipeline, accelerated
The heat exchange of refrigerant, so as to accelerate defrost speed, shorten the defrost time, while shadow of the defrosting operation to indoor temperature can also be reduced
Ring.
Technical scheme is described in detail above in association with accompanying drawing, by technical scheme, can pass through
Fresh air pipeline makes refrigerant carry out convection heat transfer' heat-transfer by convection with outdoor air, accelerates the heat exchange of refrigerant, so as to accelerate defrost speed, shortening
The white time.
In the present invention, term " first ", " second ", " the 3rd " are only used for the purpose described, and it is not intended that instruction
Or imply relative importance;Term " multiple " then refers to two or more, is limited unless otherwise clear and definite.Term " installation ",
The term such as " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected or can
Dismantling connection, or be integrally connected;" connected " can be joined directly together, and can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In description of the invention, it is to be understood that the instruction such as term " on ", " under ", "left", "right", "front", "rear"
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
State, rather than instruction or imply signified device or unit there must be specific direction, with specific azimuth configuration and operation,
It is thus impossible to it is interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
- A kind of 1. fresh air conditioner-mechanical, it is characterised in that including:The connected compressor of pipeline, four-way valve, outdoor unit, indoor set, its In, the indoor set includes:Housing, the housing include air inlet and exhaust outlet;Indoor heat exchanger and indoor fan in the housing, wherein, the indoor fan is provided close to the air inlet Side, the indoor fan be used for the indoor heat exchanger dry;AndBoth ends are connected to the fresh air pipeline of the air inlet and the exhaust outlet respectively;Microcontroller, electrically connected with the four-way valve and the indoor fan, the microcontroller is used in a heating mode It is determined that when needing defrost, control the four-way valve to commutate to refrigeration mode, reduce the rotating speed of the indoor fan, and described in conducting Fresh air pipeline.
- 2. fresh air conditioner-mechanical according to claim 1, it is characterised in that the housing includes:Gas returning port, electrically connected with the microcontroller, the gas returning port is provided with return air grid;Gas outlet, being electrically connected with the microcontroller, the gas outlet is provided with air outlet grate,Wherein, when the microcontroller determines to need defrost, close the air outlet grate or close the air outlet grate and institute State return air grid.
- 3. fresh air conditioner-mechanical according to claim 2, it is characterised in that also include:Temperature sensor, located at the outdoor unit outer wall, electrically connected with the microcontroller, the temperature sensor is used to detect Outdoor temperature.
- 4. fresh air conditioner-mechanical according to claim 3, it is characterised in that also include:Auxiliary thermal, located at the side of the indoor heat exchanger, electrically connected with the microcontroller, the auxiliary thermal is used for When the microcontroller determines to need defrost, the refrigerant in the indoor heat exchanger is heated;OrThe auxiliary thermal is additionally operable to, when the microcontroller determines to need defrost, obtain outdoor temp corresponding to the outdoor unit Degree, after the outdoor temperature is less than preset temperature, the refrigerant in the indoor heat exchanger is heated.
- 5. fresh air conditioner-mechanical according to claim 4, it is characterised in that the outdoor unit includes and microcontroller electricity The outdoor fan of connection, determine that the outdoor fan switches to stopped status when needing defrost in the microcontroller.
- 6. fresh air conditioner-mechanical according to any one of claim 1 to 5, it is characterised in that the fresh air pipeline specifically wraps Include:Air inlet pipeline, one end of the air inlet pipeline are connected to the air inlet, and the other end of the air inlet pipeline is connected to room Outer air, the air inlet pipeline are provided with the first valve;Exhaust pipeline, one end of the exhaust pipeline are connected to the exhaust outlet, and the other end of the exhaust pipeline is connected to room Outer air, the exhaust pipeline are provided with the second valve.
- 7. fresh air conditioner-mechanical according to claim 6, it is characterised in that the microcontroller also with first valve and institute The electrical connection of the second valve is stated, by controlling the unlatching of first valve and second valve to realize to turn on the air inlet pipeline and described Exhaust pipeline.
- 8. fresh air conditioner-mechanical according to any one of claim 1 to 7, it is characterised in that also include:The microcontroller is additionally operable to it is determined that after the completion of defrost, controlling the four-way valve to commutate to heating mode, described in adjustment Rotating speed before the rotating speed of indoor fan to defrost, and control the fresh air pipeline to be adjusted to the on off operating mode before defrost.
- A kind of 9. defrosting method, for fresh air conditioner-mechanical, it is characterised in that including:Obtain the operational factor of the fresh air conditioner-mechanical;When the operational factor meets default defrost condition, control the fresh air conditioner-mechanical to switch to refrigeration mode, close institute The outdoor fan of fresh air conditioner-mechanical is stated, reduces the rotating speed of the indoor fan of the fresh air conditioner-mechanical, and turns on the fresh air pipeline, Until after the operational factor meets default exit criteria, defrost is completed.
- 10. defrosting method according to claim 9, it is characterised in that also include:When the operational factor meets default defrost condition, the outdoor environment temperature of the fresh air conditioner-mechanical is determined;If the outdoor environment temperature is less than preset temperature, open located at the indoor heat exchanger side of the fresh air conditioner-mechanical Auxiliary thermal, until after the operational factor meets default exit criteria, close the auxiliary thermal.
- 11. the defrosting method according to claim 9 or 10, it is characterised in that also include:When the operational factor meets default defrost condition, close the air outlet of the indoor set or close the indoor set Air outlet and return air inlet.
- 12. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program The defrosting method any one of claim 9 to 11 is realized when being executed by processor.
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CN111140997A (en) * | 2019-12-31 | 2020-05-12 | Tcl空调器(中山)有限公司 | Air conditioner control method and device, air conditioner and computer readable storage medium |
CN111678206A (en) * | 2020-06-17 | 2020-09-18 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
CN114543164A (en) * | 2022-02-15 | 2022-05-27 | 北京小米移动软件有限公司 | Air conditioner indoor unit, air conditioner control method and device |
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CN114811749A (en) * | 2022-04-01 | 2022-07-29 | 北京小米移动软件有限公司 | Air conditioner, control method and device thereof and storage medium |
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