CN110173823A - Progress control method, control device, air conditioner and computer readable storage medium - Google Patents

Progress control method, control device, air conditioner and computer readable storage medium Download PDF

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Publication number
CN110173823A
CN110173823A CN201910472129.5A CN201910472129A CN110173823A CN 110173823 A CN110173823 A CN 110173823A CN 201910472129 A CN201910472129 A CN 201910472129A CN 110173823 A CN110173823 A CN 110173823A
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CN
China
Prior art keywords
valve
heat exchanger
defrost
air conditioner
heating mode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910472129.5A
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Chinese (zh)
Other versions
CN110173823B (en
Inventor
徐振坤
唐亚林
杜顺开
蔡志昇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910472129.5A priority Critical patent/CN110173823B/en
Publication of CN110173823A publication Critical patent/CN110173823A/en
Application granted granted Critical
Publication of CN110173823B publication Critical patent/CN110173823B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • 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
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/31—Low ambient temperatures
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • 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

Abstract

The present invention provides a kind of progress control method, operating control device, air conditioner and computer readable storage mediums, progress control method includes: that the air conditioner runs on heating mode, is determined according to the duty parameter got and switches to defrost pattern or the auxiliary hot component of unlatching electricity in the heating mode by the heating mode；In the defrost pattern, control four-way valve maintains conducting direction constant, and the control valve between the indoor heat exchanger and the outdoor heat exchanger is opened in control so that corresponding bypass line is connected.According to the technical solution of the present invention, detecting the presence of frosting risk but the stage of not up to defrost condition, since the limitation of frosting causes the heating effect of air conditioner to reduce, therefore the auxiliary hot component of electricity can first be opened, to be promoted, there are the heating effects under the operating condition of frosting risk, and then the leaving air temp and room heating effect of promotion indoor unit.

Description

Progress control method, control device, air conditioner and computer readable storage medium
Technical field
The present invention relates to air-conditioning technical fields, in particular to a kind of progress control method, a kind of operation control dress It sets, a kind of air conditioner and a kind of computer readable storage medium.
Background technique
In the related technology, when air conditioner is run in a heating mode, the outdoor heat exchanger in low temperature and high relative humidity environment is easy Frosting carries out the commutation of four-way valve when current solution is defrost, switch to refrigeration cycle operation, reaches outdoor unit defrosting Purpose, but will affect the heating effect to room.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, it is an object of the present invention to provide a kind of progress control methods.
It is another object of the present invention to provide a kind of operating control devices.
It is another object of the present invention to provide a kind of air conditioners.
It is another object of the present invention to provide a kind of computer readable storage mediums.
To achieve the above object, the technical solution of first aspect present invention provides a kind of air conditioner, comprising: compressor； Four-way valve, first interface and second interface in the four-way valve are respectively connected to the exhaust end and air return end of the compressor； The outdoor heat exchanger and indoor heat exchanger connected by the first refrigerant pipeline, the outdoor heat exchanger is far from first refrigerant pipeline One end the third interface of the four-way valve is connected to by the second refrigerant pipeline, the indoor heat exchanger is cold far from described first One end of matchmaker's pipeline is connected to the 4th interface of the four-way valve by third refrigerant pipeline；Throttling set, setting is described the One refrigerant pipeline or setting are on first refrigerant pipeline and second refrigerant pipeline, controller, respectively with the throttling Device and control valve electrical connection, after switching to defrost pattern by heating mode, the controller controls the four-way Valve is held on that direction is constant, controls the openings control valve so that bypass line conducting and the control and regulation section The aperture of device is flowed to specified aperture.
Wherein, in refrigeration mode, refrigerant is arranged from the exhaust end of compressor to four-way valve, flows to outdoor heat exchange by four-way valve Device, in heating mode, refrigerant flows to outdoor heat exchanger from indoor heat exchanger, then flows to four-way valve from outdoor heat exchanger, and Return to the air return end of compressor.
In above-mentioned technical proposal, optionally, the throttling set includes valve seat and is moved back and forth by excitation con-trol Needle offers the throttle orifice with needle cooperation on the valve seat, cold to be limited by the needle with the throttle orifice The circulation area of matchmaker, wherein from the first aperture to second aperture, the circulation area increases according to the first rate, From second aperture, the circulation area increases according to the second rate, and second rate is greater than the first rate.
In the technical scheme, by setting tool, there are two types of the refrigerant circulation areas of throttling set to advance the speed, with When detecting that frost occurs in outdoor heat exchanger, first rate is adjusted to the second rate, with quickly will be in indoor heat exchanger Refrigerant import in outdoor heat exchanger, due to refrigerant temperature still with higher at this time, can be realized four-way valve and do not commutate When defrosting operation.
Wherein, the ratio between the corresponding cold medium flux of the second aperture cold medium flux corresponding with the first aperture [3.34, 100] between.
In above-mentioned technical proposal, optionally, further includes: bypass line, with the refrigerant pipeline for being provided with the throttling set It is arranged in parallel；Control valve is arranged on the bypass line, is electrically connected with the controller, for controlling the bypass line On or off；After switching to defrost pattern by heating mode, the controller control opening and first refrigerant The control valve of pipeline parallel connection is so that corresponding bypass line is connected.
In the technical scheme, by bypass line in parallel with the refrigerant pipeline for being provided with throttling set, and in bypass pipe Setting control valve in road controls first bypass pipe in parallel with the first refrigerant pipeline by control valve when executing defrosting operation Road conducting to reduce the pressure difference between indoor heat exchanger and outdoor heat exchanger, and passes through the in conjunction with the control to throttling set Bypass line reason conducting, enables the high temperature refrigerant of indoor heat exchanger side to rapidly flow to outdoor heat exchanger, and then cold by high temperature Matchmaker, which is radiated, realizes defrosting effect.
In above-mentioned technical proposal, optionally, further includes: refrigerant heating device is set to the exhaust end and the four-way On pipeline between valve, and/or it is set on the corresponding gas-liquid separator of the air return end, for being opened in defrost pattern, Heating is carried out with the refrigerant that the compressor is discharged and/or the refrigerant for returning to the compressor is heated.
In the technical scheme, refrigerant heating device is arranged by the exhaust end in compressor, to promote compressor discharge Refrigerant temperature, on the one hand, be conducive to be promoted under heating mode on the other hand indoor heating effect, is also beneficial to increase The heat that the refrigerant for flowing to outdoor heat exchanger from indoor heat exchanger carries, and then promote defrosting effect.
By the way that refrigerant heating device is arranged on gas-liquid separator, air-breathing mass dryness fraction when being able to ascend defrost alleviates compressor The problem of returning liquid improves reliability.
In above-mentioned technical proposal, optionally, further includes: the auxiliary hot component of electricity is correspondingly arranged with the indoor heat exchanger, and with It is electrically connected between the controller, for being opened in the defrost pattern.
In the technical scheme, frosting risk is being detected the presence of but the stage of not up to defrost condition, due to frosting Limitation cause the heating effect of air conditioner to reduce, therefore can first open the auxiliary hot component of electricity, there are frosting risks to be promoted Heating effect under operating condition, and then promote the leaving air temp and room heating effect of indoor unit.
In addition, since the high temperature refrigerant of indoor heat exchanger flows to outdoor heat exchanger, causing to influence under defrost pattern Heating effect can make up for it by opening the auxiliary hot component of electricity to the deficiency of indoor heating ability under defrost pattern, to guarantee user Usage experience.
In above-mentioned technical proposal, optionally, the outdoor heat exchanger is constructed by single heat exchanger tube and is formed.
In the technical scheme, outdoor heat exchanger is constructed by using single heat exchanger tube, reduces and is exposed to outdoor surface Product, therefore can reduce the difficulty of defrost, to guarantee when four-way valve maintains circulating direction identical with heating mode The reliability of frost operation.
In above-mentioned technical proposal, optionally, the outdoor heat exchanger is constructed by multiple rows of heat exchanger tube and is formed.
Wherein, multiple rows of heat exchanger tube may include 2.6 row of room, double, 1.6 rows, 1.5 rows etc..
In above-mentioned technical proposal, optionally, further includes: outdoor fan is oppositely arranged with the outdoor heat exchanger, and with institute It states and is electrically connected between controller；Indoor fan is oppositely arranged with the indoor heat exchanger, and is electrically connected between the controller It connects, wherein in the defrost pattern, the controller controls the outdoor fan reduction of speed, and according to anti-cold wind rule control The indoor fan operation.
In the technical scheme, in air conditioner operational process, that is, detect the tube temperature of indoor heat exchanger less than first When temperature threshold, indoor fan, which is opened, to be caused to influence heating effect to blows cold wind indoors, anti-cold by the setting of indoor fan Air control system rule, i.e., the tube temperature of heat exchanger just opens indoor fan in the case where being greater than or equal to the first temperature threshold indoors, And the revolving speed of indoor fan is directly proportional to the tube temperature of indoor heat exchanger, to reach preferable heating effect.
In addition, when executing defrosting operation, by control outdoor fan reduction of speed or out of service, to prevent outdoor heat exchanger Heat to outdoor diffusion, to obtain good defrosting effect.
Wherein, the first temperature threshold can be determined according to the body surface temperature induction of user.
In above-mentioned technical proposal, optionally, the throttling set is electric expansion valve；The control valve is electromagnetism cut-off Valve.
In addition, throttling set can also be capillary, throttling in the case where throttling set is controlled without controller Valve, self-sustaining throttle valve, the throttling component such as heating power expansion valve.
In above-mentioned technical proposal, optionally, it is provided with the first electric expansion valve on first refrigerant pipeline, described second The second electric expansion valve is provided on refrigerant pipeline；It is provided on the first bypass line in parallel with first refrigerant pipeline double To electromagnet cut off valve, unidirectional electromagnet cut off valve or two-way is provided on the second bypass line in parallel with second refrigerant pipeline Electromagnet cut off valve, wherein if the unidirectional electromagnet cut off valve is arranged on second bypass line, the unidirectional electromagnet cut off valve One-way conduction direction from the four-way valve to the outdoor heat exchanger direction.
In the technical scheme, it is arranged in parallel by using normally closed unidirectional electromagnet cut off valve and the second electric expansion valve or often It closes bi-directional electromagnetic shut-off valve to be arranged in parallel with the second electric expansion valve, is conducive to improve liquid hammer risk when executing defrosting operation.
In addition, there is single-phase cutoff function in the case that unidirectionally electromagnet cut off valve is due to power-off, in cooling mode, It does not need control to power on, therefore preparation cost is lower, and bi-directional electromagnetic shut-off valve can be realized in conjunction with the second electric expansion valve The function of flow control.
The technical solution of second aspect of the present invention provides a kind of progress control method, the technical side suitable for first aspect Air conditioner described in case, the progress control method includes: that the air conditioner runs on heating mode, according to the work got Condition parameter, which is determined, switches to defrost pattern or the auxiliary hot component of unlatching electricity in the heating mode by the heating mode；Described In defrost pattern, control four-way valve maintains conducting direction constant, and control is opened the indoor heat exchanger and changed with the outdoor Control valve between hot device is so that corresponding bypass line is connected.
Wherein, the duty parameter includes temperature case parameter and/or time duty parameter.
In above-mentioned technical proposal, optionally, further includes: if opening the auxiliary hot component of electricity in the heating mode, continue The duty parameter is acquired, whether has the heating mode to switch to the defrost mould to be continued to test according to the duty parameter Formula.
In the technical scheme, if determining that current outdoor heat exchanger there are the risk of frosting, that is, enters according to duty parameter Frosting detection-phase, at this time by determining corresponding defrost unlocking condition and auxiliary heating unlocking condition, to detect rank in frosting Section continues to test real-time duty parameter, with one in duty parameter and defrost unlocking condition or auxiliary heating unlocking condition When realizing matching, execute corresponding control operation, on the one hand, detecting the presence of frosting risk still not up to defrost condition Stage can first open the auxiliary hot component of electricity, be deposited with being promoted since the limitation of frosting causes the heating effect of air conditioner to reduce Heating effect under the operating condition of frosting risk, and then the leaving air temp and room heating effect of indoor unit are promoted, on the other hand, By setting defrost unlocking condition and auxiliary heating unlocking condition, the time point for entering defrost pattern can accurately be commented Estimate, so that the duration for being beneficial to prevent defrosting mode is too long, influences the normal use of user.
In above-mentioned technical proposal, optionally, the control valve includes the first electricity for being respectively arranged at outdoor heat exchanger two sides Magnetic shut-off valve and the second electromagnet cut off valve, first electromagnet cut off valve are arranged close to indoor heat exchanger, and second electromagnetism is cut Only valve is arranged close to four-way valve, and the air conditioner runs on the heating mode, further includes: in the heating mode, control First electromagnet cut off valve is closed, and corresponding first bypass line is ended；And control second electromagnet cut off valve is beaten It opens, corresponding second bypass line is connected, second electromagnet cut off valve is that unidirectional electromagnet cut off valve or bi-directional electromagnetic end Valve.
In the technical scheme, in a heating mode, the first electromagnet cut off valve of control is closed, so that corresponding first bypass Pipeline cut-off realizes that heat-production functions, the second electromagnet cut off valve of control are opened by adjusting the first throttling device on parallel pipeline It opens, so that corresponding second bypass line is connected, to guarantee the reliability of refrigerant circulation between outdoor heat exchanger and four-way valve.
In above-mentioned technical proposal, optionally, the control is opened between the indoor heat exchanger and the outdoor heat exchanger Control valve so that corresponding bypass line is connected, specifically include: control first electromagnet cut off valve is opened, and makes described first Other bypass line conducting；And the control second solenoid valve is closed, with second bypass line cut-off.
In the technical scheme, in the side that outdoor heat exchanger is connect with indoor heat exchanger, by be provided with throttling dress The refrigerant pipeline parallel connection bypass line set, and control valve is set on bypass line, when executing defrosting operation, pass through control valve Control is connected with the first bypass line of the first refrigerant pipeline parallel connection, in conjunction with the control to throttling set, to reduce indoor heat exchange Pressure difference between device and outdoor heat exchanger, and by the first bypass management conducting, enable the high temperature refrigerant of indoor heat exchanger side Outdoor heat exchanger is enough rapidly flowed to, and then is radiated by high temperature refrigerant and realizes defrosting effect.
It is swollen by using normally closed unidirectional electromagnet cut off valve and the second electronics in the side that outdoor heat exchanger is connect with four-way valve Swollen valve is arranged in parallel or normally closed bi-directional electromagnetic shut-off valve is arranged in parallel with the second electric expansion valve, is conducive to improve executing defrost behaviour Liquid hammer risk when making.
In above-mentioned technical proposal, optionally, if switching to the defrost pattern by the heating mode, further includes: in institute It states in defrost pattern, determines temperature range belonging to outdoor temperature；Determine that corresponding first object is opened according to the temperature range Degree and the second target aperture；It controls the first throttling device and is adjusted to the first object aperture；Control second throttling Device is adjusted to the second target aperture.
Wherein, the temperature value in temperature range is lower, and the aperture of corresponding throttling set is bigger.
Wherein, by the control to first throttling device, it can be realized the defrosting effect under heating mode, by second The control of throttling set, during can reduce defrost, compressor is run by the probability of liquid hammer to promote air-conditioner system Reliability.
In above-mentioned technical proposal, optionally, if switching to the defrost pattern by the heating mode, further includes: in institute It states in defrost pattern, if detecting, indoor tube temperature is greater than or equal to the first temperature threshold, it controls and opens the indoor fan, and And the revolving speed of the indoor fan controls between the indoor tube temperature as positive correlation；And the control outdoor fan reduction of speed fortune Row.
In the technical scheme, in air conditioner operational process, that is, detect the tube temperature of indoor heat exchanger less than first When temperature threshold, indoor fan, which is opened, to be caused to influence heating effect to blows cold wind indoors, anti-cold by the setting of indoor fan Air control system rule, i.e., the tube temperature of heat exchanger just opens indoor fan in the case where being greater than or equal to the first temperature threshold indoors, And the revolving speed of indoor fan is directly proportional to the tube temperature of indoor heat exchanger, to reach preferable heating effect.
In addition, when executing defrosting operation, by control outdoor fan reduction of speed or out of service, to prevent outdoor heat exchanger Heat to outdoor diffusion, to obtain good defrosting effect.
Wherein, the first temperature threshold can be determined according to the body surface temperature induction of user.
In above-mentioned technical proposal, optionally, if switching to the defrost pattern by the heating mode, further includes: in institute It states in defrost pattern, the auxiliary hot component of electricity is opened in control.
In the technical scheme, frosting risk is being detected the presence of but the stage of not up to defrost condition, due to frosting Limitation cause the heating effect of air conditioner to reduce, therefore can first open the auxiliary hot component of electricity, there are frosting risks to be promoted Heating effect under operating condition, and then promote the leaving air temp and room heating effect of indoor unit.
In addition, since the high temperature refrigerant of indoor heat exchanger flows to outdoor heat exchanger, causing to influence under defrost pattern Heating effect can make up for it by opening the auxiliary hot component of electricity to the deficiency of indoor heating ability under defrost pattern, to guarantee user Usage experience.
In above-mentioned technical proposal, optionally, if switching to the defrost pattern by the heating mode, further includes: in institute It states in defrost pattern, refrigerant heating device is opened in control.
In the technical scheme, refrigerant heating device is arranged by the exhaust end in compressor, to promote compressor discharge Refrigerant temperature, on the one hand, be conducive to be promoted under heating mode on the other hand indoor heating effect, is also beneficial to increase The heat that the refrigerant for flowing to outdoor heat exchanger from indoor heat exchanger carries, and then promote defrosting effect.
By the way that refrigerant heating device is arranged on gas-liquid separator, air-breathing mass dryness fraction when being able to ascend defrost alleviates compressor The problem of returning liquid improves reliability.
In above-mentioned technical proposal, optionally, is determined according to the duty parameter and defrost mould is switched to by the heating mode Formula opens the auxiliary hot component of electricity in the heating mode, specifically includes: in the heating mode, detect room temperature into Enter the first temperature threshold section；Determine multiple second temperature threshold intervals corresponding with first temperature threshold section；Detection Enter any second temperature threshold interval to outdoor temperature, determination is corresponding with any second temperature threshold interval respectively Defrost unlocking condition and auxiliary heating unlocking condition；Before opening defrosting operation according to the defrost unlocking condition, detect Collected duty parameter is matched with auxiliary heating unlocking condition, then controls the auxiliary hot component of unlatching electricity.
In the technical scheme, by presetting the first temperature threshold section corresponding with room temperature, and with it is first warm The corresponding multiple second temperature threshold intervals of threshold interval are spent, second temperature threshold interval is corresponding with outdoor temperature, if detecting Room temperature is in the first temperature threshold section, and when outdoor temperature is in any second temperature threshold interval, shows there is knot White risk enters frosting detection-phase, if there is frost, but frost thickness is not up to the degree for needing defrost, at this time By determining defrost unlocking condition corresponding with second temperature threshold interval and auxiliary heating unlocking condition, to detect rank in frosting Section continues to test real-time duty parameter, with one in duty parameter and defrost unlocking condition or auxiliary heating unlocking condition When realizing matching, corresponding control is specified to operate, for example, it is then directly entered defrost pattern when matching with defrost unlocking condition, When matching with auxiliary heating unlocking condition, then the auxiliary hot component of electricity is first opened, to guarantee to indoor heating effect, on the one hand, Detecting frost occur, but frost thickness is not up to the degree for needing defrost but the stage of not up to defrost condition, Since the limitation of frosting causes the heating effect of air conditioner to reduce, the auxiliary hot component of electricity can be opened, first to promote unlatchingization Frost operation before heating effect, on the other hand, by setting defrost unlocking condition and auxiliary heating unlocking condition, can into The time point for entering defrost pattern carries out accurate evaluation, to be conducive to reduce the opening time of defrosting operation, prevents from influencing user To the normal use of air conditioner.
In the technical scheme, by presetting the first temperature threshold section corresponding with room temperature, and with it is first warm The corresponding multiple second temperature threshold intervals of threshold interval are spent, second temperature threshold interval is corresponding with outdoor temperature, if detecting Room temperature is in the first temperature threshold section, and when outdoor temperature is in any second temperature threshold interval, shows there is knot White risk enters frosting detection-phase, if there is frost, but frost thickness is not up to the degree for needing defrost, at this time By determining defrost unlocking condition corresponding with second temperature threshold interval and auxiliary heating unlocking condition, to detect rank in frosting Section continues to test real-time duty parameter, with one in duty parameter and defrost unlocking condition or auxiliary heating unlocking condition When realizing matching, corresponding control is specified to operate, for example, it is then directly entered defrost pattern when matching with defrost unlocking condition, When matching with auxiliary heating unlocking condition, then the auxiliary hot component of electricity is first opened, to guarantee to indoor heating effect, on the one hand, Detecting frost occur, but frost thickness is not up to the degree for needing defrost but the stage of not up to defrost condition, Since the limitation of frosting causes the heating effect of air conditioner to reduce, the auxiliary hot component of electricity can be opened, first to promote unlatchingization Frost operation before heating effect, on the other hand, by setting defrost unlocking condition and auxiliary heating unlocking condition, can into The time point for entering defrost pattern carries out accurate evaluation, to be conducive to reduce the opening time of defrosting operation, prevents from influencing user To the normal use of air conditioner.
It is optionally, described to be determined according to the duty parameter by the switching to of heating mode in above-mentioned technical proposal White mode opens the auxiliary hot component of electricity in the heating mode, specifically further include: in the frosting detection-phase, if detecting The variable quantity of the temperature difference between the variable quantity of outdoor tube temperature, and/or indoor tube temperature and room temperature meets the defrost open strip Part then switches to the defrost pattern.
In above-mentioned technical proposal, optionally, further includes: during executing defrosting operation, continue to acquire duty parameter, if It detects that the duty parameter satisfaction exits defrost condition, then the heating mode is switched back by the defrost pattern, wherein institute The variable quantity absolute threshold for stating the outdoor tube temperature in defrost unlocking condition is greater than the outdoor pipe assisted in heating unlocking condition The variable quantity absolute threshold of temperature.
Wherein, variable quantity absolute threshold is absolute value, and when change rate threshold value is considered as an absolute value, (i.e. variable quantity is exhausted To threshold value), then the variable quantity absolute threshold of the outdoor tube temperature in defrost unlocking condition is greater than the room in auxiliary heating unlocking condition The variable quantity absolute threshold of outer tube temperature, in fact, with the increase of running time, outdoor tube temperature is in decline state, therefore its Actual variable quantity is a negative value, and in this case, the variable quantity threshold value of the outdoor tube temperature in defrost unlocking condition is less than The variable quantity threshold value of outdoor tube temperature in auxiliary heating unlocking condition.
In the technical scheme, by the variable quantity absolute threshold to the outdoor tube temperature in defrost unlocking condition in described auxiliary The restriction for helping the variable quantity absolute threshold of the outdoor tube temperature in heating unlocking condition makes the condition for opening the auxiliary heat of electricity be easier to reach, Comparatively defrost unlocking condition is more difficult to reach, therefore can satisfy and open the auxiliary heat of electricity between defrost, heats to indoor auxiliary Demand.
In above-mentioned technical proposal, optionally, further includes: if switching back into the heating mode, whether sensing chamber's internal pipe temperature is big In or equal to second temperature threshold value；If the interior tube temperature is less than the second temperature threshold value, the auxiliary hot component of the electricity is controlled Open state is kept, until the indoor tube temperature rises to more than or equal to the second temperature threshold value.
In the technical scheme, by the relationship between sensing chamber's internal pipe temperature and second temperature threshold value after defrost, really It is fixed whether to continue starting the auxiliary hot component of electricity, to solve the problems, such as that indoor heat exchanger heat supply heats up slow after the completion of defrost.
Second temperature threshold value indicates that the indoor heat exchanger tube temperature can not provide good heating air-out effect, can be according to making It is determined with empirical value.
In above-mentioned technical proposal, optionally, further includes: the air conditioner runs on refrigeration mode, controls first electricity Magnetic shut-off valve is closed, so that first bypass line ends；If second electromagnet cut off valve is unidirectional electromagnet cut off valve, The unidirectional electromagnet cut off valve power-off is controlled to control described two-way if two electromagnet cut off valve is bi-directional electromagnetic shut-off valve Electromagnet cut off valve powers on, so that second bypass line is connected.
In the technical scheme, by jointly controlling to the first electromagnet cut off valve and the second electromagnet cut off valve, system is realized The independent operating and heating mode of cold mode and defrost pattern take into account operation.
Wherein, the one-way conduction direction of the unidirectional electromagnet cut off valve is from the four-way valve to the outdoor heat exchanger side To.
The technical solution of third aspect present invention provides a kind of operating control device, is suitable for air conditioner, comprising: processing Device, the processor can be realized when executing computer program: operation control described in the technical solution of second aspect of the present invention The step of method processed.
The technical solution of fourth aspect present invention provides a kind of air conditioner, comprising: the technical solution of above-mentioned second aspect The operating control device of offer.
The computer readable storage medium that the embodiment of fifth aspect present invention provides, is stored thereon with computer program, The step of computer program is performed, and realizes progress control method described in any of the above-described technical solution.
Air conditioner provided herein and the progress control method suitable for the air conditioner at least have following technology Effect:
(1) by the control to second throttling device, during can reduce defrost, compressor by liquid hammer probability, To promote air-conditioner system reliability of operation.
(2) by jointly controlling to the first electromagnet cut off valve and the second electromagnet cut off valve, the independence of refrigeration mode is realized Operation and heating mode and defrost pattern take into account operation.
(3) the auxiliary hot component of electricity and/or refrigerant heating device are opened by control, solution frosting can be improved and do not enter defrost Heating effect persistently reduces, and the defrost stage is low with heating effect from indoor heat absorption, and heating effect rises slow after defrost is completed Deng the problem of the thermal energy deficiency of three different phases.
(4) by setting refrigerant heating device, air-breathing mass dryness fraction when being able to ascend defrost alleviates the problem of compressor returns liquid, Improve reliability.
(5) it by setting refrigerant heating device, can be improved delivery temperature, and then promote defrosting effect.
Additional aspect and advantage of the invention will provide in following description section, will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic configuration diagram of air conditioner according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of throttling set according to an embodiment of the invention；
Fig. 3 shows the schematic configuration diagram of air conditioner according to another embodiment of the invention；
Fig. 4 shows the schematic configuration diagram of the air conditioner of still another embodiment in accordance with the present invention；
Fig. 5 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Fig. 6 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Fig. 7 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Fig. 8 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Fig. 9 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 10 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 11 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 12 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 13 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 14 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 15 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 16 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 17 shows the schematic configuration diagrams of air conditioner according to still another embodiment of the invention；
Figure 18 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 19 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 20 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 21 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 22 shows the schematic configuration diagram of air conditioner according to still another embodiment of the invention；
Figure 23 shows the schematic flow diagram of progress control method according to an embodiment of the invention；
Figure 24 shows the schematic flow diagram of progress control method according to another embodiment of the invention；
Figure 25 shows the schematic flow diagram of the progress control method of still another embodiment in accordance with the present invention；
Figure 26 shows the schematic flow diagram of progress control method according to still another embodiment of the invention；
Figure 27 shows the schematic flow diagram of progress control method according to still another embodiment of the invention；
Figure 28 shows the schematic block diagram of operating control device according to an embodiment of the invention.
Wherein, the corresponding relationship between appended drawing reference and component names of the Fig. 1 into Figure 22 are as follows:
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, implementation of the invention Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
As shown in Figure 1, the air conditioner that the progress control method in the application uses can have with lower component, comprising: pressure Contracting machine 102, four-way valve 104, outdoor fan 106, outdoor heat exchanger 108, indoor heat exchanger 110, indoor fan 112, Yi Ji One throttling set 114, wherein the first refrigerant pipe between outdoor heat exchanger and indoor heat exchanger is arranged in first throttling device 114 On the road.
Optionally, as shown in Fig. 2, first throttling device 114 be flow can the multistage throttling set adjusted, and including valve seat 1416 and the needle 1414 that is moved back and forth by excitation con-trol, it offers on the valve seat 1416 and the needle 1414 cooperates Throttle orifice 1418, to limit the circulation area of refrigerant by the needle and the throttle orifice, wherein from the first aperture to institute State the second aperture, the circulation area increases according to the first rate, from second aperture, the circulation area according to Second rate increases, and second rate is greater than the first rate.
As shown in Fig. 2, first throttling device 114 further includes with flowering structure: spring 1402, stator coil 1404, rotor magnetic Iron 1406, needle rotational sleeve 1408, locating ring 1410 and disengaging copper pipe 712.
Needle 1414 can be formed by cone structure 1422 and the construction of frustum cone structure 1420, and wherein rotary table bus is straight line.
In this embodiment, by setting tool advancing the speed there are two types of the refrigerant circulation area of throttling set, to examine When measuring outdoor heat exchanger 108 and frost occur, first rate is adjusted to the second rate, quickly by indoor heat exchanger Refrigerant in 110 imports in outdoor heat exchanger 108, due to refrigerant temperature still with higher at this time, can be realized four-way Defrosting operation when valve 104 does not commutate.
Wherein, the ratio between the corresponding cold medium flux of the second aperture cold medium flux corresponding with the first aperture [3.34, 100] between.
Optionally, it is parallel with the first bypass line with the first refrigerant pipeline, the first control is provided on the first bypass line Valve 116.
Optionally, the second refrigerant pipeline is connected between outdoor heat exchanger 108 and four-way valve 104, on the second refrigerant pipeline Second throttling device 118 is set.
Optionally, it is parallel with the first bypass line with the second refrigerant pipeline, the first control is provided on the second bypass line Valve 116.
Optionally, the first control valve 116 be bi-directional electromagnetic shut-off valve, the second control valve 120 be unidirectional electromagnet cut off valve or Bi-directional electromagnetic shut-off valve.
Specifically, air conditioner includes: compressor 102；Four-way valve 104, the first interface and second in the four-way valve 104 Interface is respectively connected to the exhaust end and air return end of the compressor 102；The outdoor heat exchanger 108 connected by the first refrigerant pipeline With indoor heat exchanger 110, the one end of the outdoor heat exchanger 108 far from first refrigerant pipeline is connected by the second refrigerant pipeline It is connected to the third interface of the four-way valve 104, the one end of the indoor heat exchanger 110 far from first refrigerant pipeline passes through the Three refrigerant pipelines are connected to the 4th interface of the four-way valve 104；Throttling set is arranged in first refrigerant pipeline or setting On first refrigerant pipeline and second refrigerant pipeline, controller, respectively with the throttling set and the control Valve electrical connection, after switching to defrost pattern by heating mode, the controller controls the four-way valve 104 and is held on direction Constant, the control opening control valve is so that the bypass line is connected and controls to adjust the aperture of the throttling set extremely Specified aperture.
Wherein, in refrigeration mode, refrigerant is arranged from the exhaust end of compressor 102 to four-way valve 104, is flowed by four-way valve 104 To outdoor heat exchanger 108, in heating mode, refrigerant flows to outdoor heat exchanger 108 from indoor heat exchanger 110, then from outdoor Heat exchanger 108 flows to four-way valve 104, and returns to the air return end of compressor 102.
In above-described embodiment, optionally, further includes: bypass line and is provided with the refrigerant pipeline of the throttling set simultaneously Connection setting；Control valve is arranged on the bypass line, is electrically connected with the controller, leads for controlling the bypass line Logical or cut-off；After switching to defrost pattern by heating mode, the controller control opening and first refrigerant pipe The control valve of road parallel connection is so that corresponding bypass line is connected.
In this embodiment, by bypass line in parallel with the refrigerant pipeline for being provided with throttling set, and in bypass line Upper setting control valve controls first bypass line in parallel with the first refrigerant pipeline by control valve when executing defrosting operation Conducting, in conjunction with the control to throttling set, to reduce the pressure difference between indoor heat exchanger 110 and outdoor heat exchanger 108, and leads to The first bypass management conducting is crossed, so that the high temperature refrigerant of 110 side of indoor heat exchanger is rapidly flowed to outdoor heat exchanger 108, in turn It is radiated by high temperature refrigerant and realizes defrosting effect.
Optionally, air conditioner further include: refrigerant heating device 124, including at least three kinds of set-up modes:
As shown in figure 5, refrigerant heating device 124B is set to the pipeline between the exhaust end and the four-way valve 104 On.
As shown in figure 4, refrigerant heating device 124A is set on the corresponding gas-liquid separator of the air return end.
As shown in fig. 6, refrigerant heating device 124 is set on the pipeline between the exhaust end and the four-way valve 104 On gas-liquid separator corresponding with the air return end.
Refrigerant heating device 124 is added for opening in defrost pattern with the refrigerant that the compressor 102 is discharged Heat and/or the refrigerant for returning to the compressor 102 is heated.
In this embodiment, refrigerant heating device 124 is arranged by the exhaust end in compressor 102, to promote compressor The refrigerant temperature of 102 discharges, on the one hand, be conducive to be promoted to indoor heating effect under heating mode, on the other hand, also favorably In the heat that increase is carried from the refrigerant that indoor heat exchanger 110 flows to outdoor heat exchanger 108, and then promote defrosting effect.
By the way that refrigerant heating device 124 is arranged on gas-liquid separator, air-breathing mass dryness fraction when being able to ascend defrost alleviates compression The problem of machine 102 returns liquid improves reliability.
As shown in figure 3, optionally, air conditioner further include: the auxiliary hot component 122 of electricity, it is corresponding with the indoor heat exchanger 110 to set It sets, and is electrically connected between the controller, for being opened in the defrost pattern, to add to the indoor heat exchanger 110 Heat.
In this embodiment, frosting risk is being detected the presence of but the stage of not up to defrost condition, due to frosting Limitation causes the heating effect of air conditioner to reduce, therefore can first open the auxiliary hot component 122 of electricity, and to be promoted, there are frosting risks Heating effect under operating condition, and then promote the leaving air temp and room heating effect of indoor unit.
In addition, since the high temperature refrigerant of indoor heat exchanger 110 flows to outdoor heat exchanger 108, being led under defrost pattern It causes to influence heating effect, by opening the auxiliary hot component 122 of electricity, can make up for it under defrost pattern to the deficiency of indoor heating ability, To guarantee the usage experience of user.
In above-described embodiment, optionally, the outdoor heat exchanger 108 is constructed by single heat exchanger tube to be formed.
Fig. 7 to Figure 14 shows the air conditioner structure for being provided with the outdoor heat exchanger 108 formed by single heat exchanger tube.
As shown in fig. 7, first throttling device 114 is provided on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116.
As shown in figure 8, first throttling device 114 is provided on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 9, first throttling device 114 is provided on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124A is set to the corresponding gas-liquid separation of the air return end On device.
As shown in Figure 10, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124B is set to the exhaust end and the four-way valve 104 Between pipeline on.
As shown in figure 11, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124 is set to the exhaust end and the four-way valve 104 Between pipeline on gas-liquid separator corresponding with the air return end.
As shown in figure 12, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124A is set to the corresponding gas-liquid separation of the air return end On device, indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 13, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124B is set to the exhaust end and the four-way valve 104 Between pipeline on, indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 14, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, and refrigerant heating device 124 is set to the exhaust end and the four-way valve 104 Between pipeline on gas-liquid separator corresponding with the air return end, indoor is additionally provided with the auxiliary hot component 122 of electricity.
In this embodiment, outdoor heat exchanger 108 is constructed by using single heat exchanger tube, reduces and is exposed to outdoor surface Product, therefore can reduce the difficulty of defrost, to guarantee to maintain the progress of circulating direction identical with heating mode when in four-way valve 104 The reliability of defrosting operation.
In above-described embodiment, optionally, the outdoor heat exchanger 108 is constructed by multiple rows of heat exchanger tube to be formed.
Wherein, multiple rows of heat exchanger tube may include 2.6 row of room, double, 1.6 rows, 1.5 rows etc..
In above-described embodiment, optionally, further includes: outdoor fan 106 is oppositely arranged with the outdoor heat exchanger 108, and It is electrically connected between the controller；Indoor fan 112 is oppositely arranged with the indoor heat exchanger 110, and with the controller Between be electrically connected, wherein in the defrost pattern, the controller controls 106 reduction of speed of outdoor fan, and according to anti-cold The operation of indoor fan 112 described in wind rule control.
In this embodiment, in air conditioner operational process, that is, detect the tube temperature of indoor heat exchanger 110 less than first When temperature threshold, indoor fan 112, which is opened, to be caused to influence heating effect, pass through setting for indoor fan 112 to blows cold wind indoors Anti-cold air control system rule is set, i.e., the tube temperature of heat exchanger 110 is just opened in the case where being greater than or equal to the first temperature threshold indoors Indoor fan 112, and the revolving speed of indoor fan 112 is directly proportional to the tube temperature of indoor heat exchanger 110, to reach preferable heating Effect.
In addition, when executing defrosting operation, by control 106 reduction of speed of outdoor fan or out of service, to prevent outdoor from changing The heat of hot device 108 is to outdoor diffusion, to obtain good defrosting effect.
Wherein, the first temperature threshold can be determined according to the body surface temperature induction of user.
In above-described embodiment, optionally, the throttling set is electric expansion valve；The control valve is electromagnet cut off valve.
In addition, throttling set can also be capillary, throttling in the case where throttling set is controlled without controller Valve, self-sustaining throttle valve, the throttling component such as heating power expansion valve.
Figure 15 to Figure 22 shows the air conditioner structure that bypass flow path is provided on the circuits of outdoor heat exchanger two sides, Middle outdoor heat exchanger 108 can be the heat exchanger of multiple rows of heat exchange tubular type, or the heat exchanger of single heat exchange tubular type.
In above-described embodiment, optionally, it is provided with the first electric expansion valve 114 on first refrigerant pipeline, described The second electric expansion valve 118 is provided on two refrigerant pipelines；It is set on the first bypass line in parallel with first refrigerant pipeline It is equipped with bi-directional electromagnetic shut-off valve 116, unidirectional electromagnetism is provided on the second bypass line in parallel with second refrigerant pipeline and is cut Only valve 120 or bi-directional electromagnetic shut-off valve 120, wherein if the unidirectional electromagnet cut off valve, institute are arranged on second bypass line The one-way conduction direction of unidirectional electromagnet cut off valve is stated from the four-way valve 104 to 108 direction of outdoor heat exchanger.
As shown in figure 15, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120.
As shown in figure 16, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, and indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 17, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, and refrigerant heating device 124A is set to the air return end pair On the gas-liquid separator answered.
As shown in figure 18, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, refrigerant heating device 124B be set to the exhaust end with On pipeline between the four-way valve 104.
As shown in figure 19, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, and refrigerant heating device 124 is set to the exhaust end and institute It states on the pipeline between four-way valve 104 on gas-liquid separator corresponding with the air return end.
As shown in figure 20, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, and refrigerant heating device 124A is set to the air return end pair On the gas-liquid separator answered, indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 21, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, refrigerant heating device 124B be set to the exhaust end with On pipeline between the four-way valve 104, indoor is additionally provided with the auxiliary hot component 122 of electricity.
As shown in figure 22, it is provided with first throttling device 114 on the first heat exchanging pipe, in parallel with the first heat exchanging pipe Bypass conduit is provided with the first control valve 116, is provided with second throttling device 118 on the second heat exchanging pipe, with the second heat exchange Second bypass line of pipeline parallel connection is provided with the second control valve 120, and refrigerant heating device 124 is set to the exhaust end and institute It states on the pipeline between four-way valve 104 on gas-liquid separator corresponding with the air return end, indoor is additionally provided with auxiliary hot group of electricity Part 122.
In this embodiment, it is arranged in parallel with the second electric expansion valve by using normally closed unidirectional electromagnet cut off valve or normally closed Bi-directional electromagnetic shut-off valve is arranged in parallel with the second electric expansion valve, is conducive to improve liquid hammer risk when executing defrosting operation.
In addition, there is single-phase cutoff function in the case that unidirectionally electromagnet cut off valve is due to power-off, in cooling mode, It does not need control to power on, therefore preparation cost is lower, and bi-directional electromagnetic shut-off valve can be realized in conjunction with the second electric expansion valve The function of flow control.
As shown in figure 23, the progress control method of embodiment according to the present invention, suitable for described in above-described embodiment Air conditioner, the progress control method include:
Step 2302: the air conditioner runs on heating mode, is determined according to the duty parameter got by the heating Pattern switching opens the auxiliary hot component of electricity to defrost pattern or in the heating mode；
Step 2306, in the defrost pattern, control four-way valve maintains conducting direction constant, and described in control opening Control valve between indoor heat exchanger and the outdoor heat exchanger is so that corresponding bypass line is connected.
Wherein, duty parameter includes temperature case parameter and/or time duty parameter.
In above-described embodiment, optionally, further includes: if opening the auxiliary hot component of electricity in the heating mode, continue to adopt Collect the duty parameter, whether there is the heating mode to switch to the defrost mould to be continued to test according to the duty parameter Formula.
In this embodiment, if determining current outdoor heat exchanger according to duty parameter, there are the risks of frosting, that is, enter knot White detection-phase, at this time by determining corresponding defrost unlocking condition and auxiliary heating unlocking condition, in frosting detection-phase Real-time duty parameter is continued to test, with a reality in duty parameter and defrost unlocking condition or auxiliary heating unlocking condition When now matching, corresponding control operation is executed, on the one hand, detecting the presence of frosting risk but the rank of not up to defrost condition Section can open the auxiliary hot component of electricity, first since the limitation of frosting causes the heating effect of air conditioner to reduce to promote presence Heating effect under the operating condition of frosting risk, and then the leaving air temp and room heating effect of indoor unit are promoted, on the other hand, lead to Setting defrost unlocking condition and auxiliary heating unlocking condition are crossed, accurate evaluation can be carried out to the time point for entering defrost pattern, To which the duration for being beneficial to prevent defrosting mode is too long, the normal use of user is influenced.
In above-described embodiment, optionally, the control valve includes the first electromagnetism for being respectively arranged at outdoor heat exchanger two sides Shut-off valve and the second electromagnet cut off valve, first electromagnet cut off valve are arranged close to indoor heat exchanger, the second electromagnetism cut-off Valve is arranged close to four-way valve, and the air conditioner runs on the heating mode, further includes: in the heating mode, controls institute The closing of the first electromagnet cut off valve is stated, corresponding first bypass line is ended；And control second electromagnet cut off valve is opened, Corresponding second bypass line is connected, second electromagnet cut off valve is unidirectional electromagnet cut off valve or bi-directional electromagnetic shut-off valve.
In this embodiment, in a heating mode, the first electromagnet cut off valve of control is closed, so that corresponding first bypass pipe Road cut-off, by adjusting the first throttling device on parallel pipeline, realization heat-production functions, the second electromagnet cut off valve of control is opened, So that corresponding second bypass line conducting, to guarantee the reliability of refrigerant circulation between outdoor heat exchanger and four-way valve.
In above-described embodiment, optionally, the control is opened between the indoor heat exchanger and the outdoor heat exchanger Control valve is so that corresponding bypass line is connected, and specifically include: control first electromagnet cut off valve is opened, and is made by the of described first Bypass line conducting；And the control second solenoid valve is closed, with second bypass line cut-off.
In this embodiment, in the side that outdoor heat exchanger is connect with indoor heat exchanger, by be provided with throttling set Refrigerant pipeline parallel connection bypass line, and control valve is set on bypass line, when executing defrosting operation, passes through control valve control System is connected with the first bypass line of the first refrigerant pipeline parallel connection, in conjunction with the control to throttling set, to reduce indoor heat exchanger Pressure difference between outdoor heat exchanger, and by the first bypass management conducting, enable the high temperature refrigerant of indoor heat exchanger side Outdoor heat exchanger is rapidly flowed to, and then is radiated by high temperature refrigerant and realizes defrosting effect.
It is swollen by using normally closed unidirectional electromagnet cut off valve and the second electronics in the side that outdoor heat exchanger is connect with four-way valve Swollen valve is arranged in parallel or normally closed bi-directional electromagnetic shut-off valve is arranged in parallel with the second electric expansion valve, is conducive to improve executing defrost behaviour Liquid hammer risk when making.
In above-described embodiment, optionally, if switching to the defrost pattern by the heating mode, further includes: described In defrost pattern, temperature range belonging to outdoor temperature is determined；Corresponding first object aperture is determined according to the temperature range With the second target aperture；It controls the first throttling device and is adjusted to the first object aperture；Control the second throttling dress It sets and is adjusted to the second target aperture.
Wherein, the temperature value in temperature range is lower, and the aperture of corresponding throttling set is bigger.
Wherein, by the control to first throttling device, it can be realized the defrosting effect under heating mode, by second The control of throttling set, during can reduce defrost, compressor is run by the probability of liquid hammer to promote air-conditioner system Reliability.
In above-described embodiment, optionally, if switching to the defrost pattern by the heating mode, further includes: described In defrost pattern, if detecting, indoor tube temperature is greater than or equal to the first temperature threshold, controls and opens the indoor fan, and The revolving speed of the indoor fan controls between the indoor tube temperature as positive correlation；And the control outdoor fan reduction of speed fortune Row.
In this embodiment, in air conditioner operational process, that is, detect the tube temperature of indoor heat exchanger less than the first temperature When spending threshold value, indoor fan, which is opened, to be caused to influence heating effect, pass through the anti-cold wind of the setting of indoor fan to blows cold wind indoors Control rule, i.e., the tube temperature of heat exchanger just opens indoor fan in the case where being greater than or equal to the first temperature threshold indoors, and And the revolving speed of indoor fan is directly proportional to the tube temperature of indoor heat exchanger, to reach preferable heating effect.
In addition, when executing defrosting operation, by control outdoor fan reduction of speed or out of service, to prevent outdoor heat exchanger Heat to outdoor diffusion, to obtain good defrosting effect.
Wherein, the first temperature threshold can be determined according to the body surface temperature induction of user.
In above-described embodiment, optionally, if switching to the defrost pattern by the heating mode, further includes: described In defrost pattern, the auxiliary hot component of electricity is opened in control.
In this embodiment, frosting risk is being detected the presence of but the stage of not up to defrost condition, due to frosting Limitation causes the heating effect of air conditioner to reduce, therefore can first open the auxiliary hot component of electricity, and to be promoted, there are the works of frosting risk Heating effect under condition, and then promote the leaving air temp and room heating effect of indoor unit.
In addition, since the high temperature refrigerant of indoor heat exchanger flows to outdoor heat exchanger, causing to influence under defrost pattern Heating effect can make up for it by opening the auxiliary hot component of electricity to the deficiency of indoor heating ability under defrost pattern, to guarantee user Usage experience.
In above-described embodiment, optionally, if switching to the defrost pattern by the heating mode, further includes: described In defrost pattern, refrigerant heating device is opened in control.
In this embodiment, refrigerant heating device is arranged by the exhaust end in compressor, to promote compressor discharge Refrigerant temperature, on the one hand, be conducive to be promoted to indoor heating effect under heating mode, on the other hand, be also beneficial to increase certainly Indoor heat exchanger flows to the heat that the refrigerant of outdoor heat exchanger carries, and then promotes defrosting effect.
By the way that refrigerant heating device is arranged on gas-liquid separator, air-breathing mass dryness fraction when being able to ascend defrost alleviates compressor The problem of returning liquid improves reliability.
In above-described embodiment, optionally, is determined according to the duty parameter and defrost pattern is switched to by the heating mode Or the auxiliary hot component of electricity is opened in the heating mode, it specifically includes: in the heating mode, detecting that room temperature enters First temperature threshold section；Determine multiple second temperature threshold intervals corresponding with first temperature threshold section；It detects Outdoor temperature enters any second temperature threshold interval, and determination is corresponding with any second temperature threshold interval respectively Defrost unlocking condition and auxiliary heating unlocking condition；Before opening defrosting operation according to the defrost unlocking condition, detects and adopt The duty parameter collected is matched with auxiliary heating unlocking condition, then controls the auxiliary hot component of unlatching electricity.
In this embodiment, by preset the first temperature threshold section corresponding with room temperature, and with the first temperature The corresponding multiple second temperature threshold intervals of threshold interval, second temperature threshold interval is corresponding with outdoor temperature, if detecting room Between temperature be in the first temperature threshold section, and when outdoor temperature is in any second temperature threshold interval, show there is frosting Risk enters frosting detection-phase, if there is frost, but frost thickness is not up to the degree for needing defrost, leads at this time It crosses and determines defrost unlocking condition corresponding with second temperature threshold interval and auxiliary heating unlocking condition, in frosting detection-phase Real-time duty parameter is continued to test, with a reality in duty parameter and defrost unlocking condition or auxiliary heating unlocking condition When now matching, corresponding control is specified to operate, for example, it is then directly entered defrost pattern when matching with defrost unlocking condition, When matching with auxiliary heating unlocking condition, then the auxiliary hot component of electricity is first opened, to guarantee to indoor heating effect, on the one hand, Detect frost occur, but frost thickness is not up to the degree for needing defrost but the stage of not up to defrost condition, by Cause the heating effect of air conditioner to reduce in the limitation of frosting, therefore can first open the auxiliary hot component of electricity, to promote unlatching defrost Heating effect before operation on the other hand, can be to entrance by setting defrost unlocking condition and auxiliary heating unlocking condition The time point of defrost pattern carries out accurate evaluation, to be conducive to reduce the opening time of defrosting operation, prevents from influencing user couple The normal use of air conditioner.
In above-described embodiment, optionally, described determined according to the duty parameter switches to defrost by the heating mode Mode opens the auxiliary hot component of electricity in the heating mode, specifically further include: in the frosting detection-phase, if detecting room The variable quantity of the temperature difference between the variable quantity of outer tube temperature, and/or indoor tube temperature and room temperature meets the defrost unlocking condition, Then switch to the defrost pattern.
In above-described embodiment, optionally,
Further include: during executing defrosting operation, continue to acquire duty parameter, if detecting, the duty parameter meets Defrost condition is exited, then the heating mode is switched back by the defrost pattern, wherein the outdoor in the defrost unlocking condition The variable quantity absolute threshold of tube temperature is greater than the variable quantity absolute threshold of the outdoor tube temperature in the auxiliary heating unlocking condition.
Wherein, variable quantity absolute threshold is absolute value, and when change rate threshold value is considered as an absolute value, (i.e. variable quantity is exhausted To threshold value), then the variable quantity absolute threshold of the outdoor tube temperature in defrost unlocking condition is greater than the room in auxiliary heating unlocking condition The variable quantity absolute threshold of outer tube temperature, in fact, with the increase of running time, outdoor tube temperature is in decline state, therefore its Actual variable quantity is a negative value, and in this case, the variable quantity threshold value of the outdoor tube temperature in defrost unlocking condition is less than The variable quantity threshold value of outdoor tube temperature in auxiliary heating unlocking condition.
In this embodiment, by the variable quantity absolute threshold to the outdoor tube temperature in defrost unlocking condition in the auxiliary The restriction for heating the variable quantity absolute threshold of the outdoor tube temperature in unlocking condition makes the condition for opening the auxiliary heat of electricity be easier to reach, changes Comparatively white unlocking condition is more difficult to reach, therefore can satisfy and open the auxiliary heat of electricity between defrost, heats to indoor auxiliary Demand.
In above-described embodiment, optionally, further includes: if switching back into the heating mode, whether sensing chamber's internal pipe temperature is greater than Or it is equal to second temperature threshold value；If it is described interior tube temperature be less than the second temperature threshold value, control the auxiliary hot component of the electricity after Continue it is in the open state, until the indoor tube temperature rises to more than or equal to the second temperature threshold value.
In this embodiment, it is determined after defrost by the relationship between sensing chamber's internal pipe temperature and second temperature threshold value Whether electricity auxiliary hot component is continued starting, to solve the problems, such as that indoor heat exchanger heat supply heats up slow after the completion of defrost.
Second temperature threshold value indicates that the indoor heat exchanger tube temperature can not provide good heating air-out effect, can be according to making It is determined with empirical value.
In above-described embodiment, optionally, further includes: the air conditioner runs on refrigeration mode, controls first electromagnetism Shut-off valve is closed, so that first bypass line ends；If second electromagnet cut off valve is unidirectional electromagnet cut off valve, control It makes the unidirectional electromagnet cut off valve power-off and controls the two-way electricity if two electromagnet cut off valve is bi-directional electromagnetic shut-off valve Magnetic shut-off valve powers on, so that second bypass line is connected.
In this embodiment, by jointly controlling to the first electromagnet cut off valve and the second electromagnet cut off valve, refrigeration is realized The independent operating and heating mode of mode and defrost pattern take into account operation.
Wherein, the one-way conduction direction of the unidirectional electromagnet cut off valve is from the four-way valve to the outdoor heat exchanger side To.
As shown in figure 24, progress control method according to first embodiment of the invention, comprising:
Step 2402, the air conditioner is controlled to run in a heating mode, control four-way valve power on, the first two-way shut-off valve Power-off (if setting, the second two-way shut-off valve or unidirectional electromagnet cut off valve are powered on), first throttling device is adjusted to heating mode Aperture (if setting, second throttling device adjusts the aperture to heating mode), outdoor fan and compressor start are run, room Inner blower is run according to anti-cold wind rule；
Step 2404, room temperature, indoor tube temperature, outdoor tube temperature and outdoor temperature are detected, persistently to determine whether from system Heat pattern switches to defrost pattern；
Step 2406, if switching to defrost pattern, four-way valve is still kept powered on, the first two-way shut-off valve power on (if setting, Then the second two-way shut-off valve or unidirectional electromagnet cut off valve power-off), control increase first throttling device aperture (if setting, according to The aperture of defrost pattern adjusting second throttling device), outdoor fan reduction of speed or shutdown, indoor fan is according to anti-cold wind rule tune Section, control open the auxiliary hot component of electricity and refrigerant heating device；
Step 2408, continue sensing chamber's internal pipe temperature, outdoor tube temperature and defrost duration in defrost pattern, moved back if meeting defrost Condition out exits defrost pattern, and continues to run in a heating mode.
As shown in figure 25, the progress control method of second embodiment according to the present invention, comprising:
Step 2502, the air conditioner is controlled to run in a heating mode, control four-way valve power on, the first two-way shut-off valve Power-off (if setting, the second two-way shut-off valve or unidirectional electromagnet cut off valve are powered on), first throttling device is adjusted to heating mode Aperture (if setting, second throttling device adjusts the aperture to heating mode), outdoor fan and compressor start are run, room Inner blower is run according to anti-cold wind rule；
Step 2504, room temperature, indoor tube temperature, outdoor tube temperature and outdoor temperature are detected, persistently to determine whether from system Heat pattern switches to defrost pattern；
Step 2506, if switching to defrost pattern, four-way valve is still kept powered on, the first two-way shut-off valve power on (if setting, Then the second two-way shut-off valve or unidirectional electromagnet cut off valve power-off), control increase first throttling device aperture (if setting, according to The aperture of defrost pattern adjusting second throttling device), outdoor fan reduction of speed or shutdown, indoor fan is according to anti-cold wind rule tune Section, control open the auxiliary hot component of electricity and refrigerant heating device；
Step 2508, continue sensing chamber's internal pipe temperature, outdoor tube temperature and defrost duration in defrost pattern, moved back if meeting defrost Condition out exits defrost pattern, and continues to run in a heating mode, and after returning to heating mode, whether sensing chamber's internal pipe temperature More than or equal to second temperature threshold value, if being less than second temperature threshold value, the auxiliary hot component of electricity is continued starting.
As shown in figure 26, the progress control method of third embodiment according to the present invention, comprising:
Step 2602, the air conditioner is controlled to run in a heating mode, control four-way valve power on, the first two-way shut-off valve Power-off (if setting, the second two-way shut-off valve or unidirectional electromagnet cut off valve are powered on), first throttling device is adjusted to heating mode Aperture (if setting, second throttling device adjusts the aperture to heating mode), outdoor fan and compressor start are run, room Inner blower is run according to anti-cold wind rule；
Step 2604, room temperature, indoor tube temperature, outdoor tube temperature and outdoor temperature are detected, persistently to determine whether making The auxiliary hot component of electricity is opened under heat pattern；
Step 2606, if opening the auxiliary hot component of electricity, room temperature, indoor tube temperature, outdoor tube temperature and outdoor temp are persistently detected Degree, to determine whether to switch to defrost mould from heating mode according to the change rate of the change rate of outdoor tube temperature and/or indoor tube temperature Formula；
Step 2608, if switching to defrost pattern, four-way valve is still kept powered on, the first two-way shut-off valve power on (if setting, Then the second two-way shut-off valve or unidirectional electromagnet cut off valve power-off), control increase first throttling device aperture (if setting, according to The aperture of defrost pattern adjusting second throttling device), outdoor fan reduction of speed or shutdown, indoor fan is according to anti-cold wind rule tune Section, control open the auxiliary hot component of electricity and refrigerant heating device；
Step 2610, continue sensing chamber's internal pipe temperature, outdoor tube temperature and defrost duration in defrost pattern, moved back if meeting defrost Condition out exits defrost pattern, and continues to run in a heating mode, and after returning to heating mode, whether sensing chamber's internal pipe temperature More than or equal to second temperature threshold value, if being less than second temperature threshold value, the auxiliary hot component of electricity is continued starting.
As shown in figure 27, the progress control method of the 4th embodiment according to the present invention, comprising:
Step 2702, the air conditioner runs on refrigeration mode, and control four-way valve power-off is flowed to, first with changing refrigerant Two-way shut-off valve power-off (if setting, the second two-way shut-off valve powers on or unidirectional stop valve power-off), first throttling device adjusting is arrived The aperture of refrigeration mode, outdoor fan, indoor fan and compressor start are run.
As described in Figure 28, operation control according to an embodiment of the invention fills 280, which includes: memory 2804 and processor 2802；Memory 2804, for storing program code；Processor 2802 is executed for caller code: The step of progress control method described in any of the above-described embodiment.
The air conditioner of embodiment according to the present invention, comprising: operating control device 280 provided by the above embodiment.
The computer readable storage medium of embodiment according to the present invention is stored thereon with computer program, the calculating The step of machine program is performed, realizes progress control method described in any of the above embodiments.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
It should be noted that in the claims, any reference symbol between parentheses should not be configured to power The limitation that benefit requires.Word "comprising" does not exclude the presence of component or step not listed in the claims.Before component Word "a" or "an" does not exclude the presence of multiple such components.The present invention can be by means of including several different components It hardware and is realized by means of properly programmed computer.In the unit claims listing several devices, these are filled Several in setting, which can be, to be embodied by the same item of hardware.The use of word first, second, and third is not Indicate any sequence.These words can be construed to title.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from right of the present invention by those skilled in the art It is required that and its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims (26)

1. a kind of air conditioner characterized by comprising
Compressor；
Four-way valve, first interface and second interface in the four-way valve are respectively connected to the exhaust end and return-air of the compressor End；
The outdoor heat exchanger and indoor heat exchanger connected by the first refrigerant pipeline, the outdoor heat exchanger is far from first refrigerant One end of pipeline is connected to the third interface of the four-way valve by the second refrigerant pipeline, and the indoor heat exchanger is far from described One end of one refrigerant pipeline is connected to the 4th interface of the four-way valve by third refrigerant pipeline；
Throttling set, setting is in first refrigerant pipeline or is arranged in first refrigerant pipeline and second refrigerant pipeline On,
Controller is electrically connected with the throttling set and the control valve respectively, is switching to defrost pattern by heating mode Afterwards, the controller controls the four-way valve and is held on that direction is constant, controls the opening control valve so that the bypass pipe Road conducting and the aperture of the throttling set is controlled to adjust to specified aperture.
2. air conditioner according to claim 1, which is characterized in that
The throttling set includes valve seat and the needle that is moved back and forth by excitation con-trol, offer on the valve seat with it is described The throttle orifice of needle cooperation, to limit the circulation area of refrigerant by the needle and the throttle orifice,
Wherein, from the first aperture to second aperture, the circulation area increases according to the first rate, from described second Aperture rises, and the circulation area increases according to the second rate, and second rate is greater than the first rate.
3. air conditioner according to claim 1, which is characterized in that further include:
Bypass line is arranged in parallel with the refrigerant pipeline for being provided with the throttling set；
Control valve is arranged on the bypass line, be electrically connected with the controller, for control the bypass line be connected or Cut-off；After switching to defrost pattern by heating mode, the controller control opening and first refrigerant pipeline are simultaneously The control valve of connection is so that corresponding bypass line is connected.
4. air conditioner according to claim 1, which is characterized in that further include:
Refrigerant heating device is set on the pipeline between the exhaust end and the four-way valve, and/or is set to the return-air Hold on corresponding gas-liquid separator, for being opened in defrost pattern, with the refrigerant that the compressor is discharged carry out heating and/ Or the refrigerant for returning to the compressor is heated.
5. air conditioner according to claim 1, which is characterized in that further include:
The auxiliary hot component of electricity, is correspondingly arranged, and be electrically connected between the controller with the indoor heat exchanger, in describedization It is opened in white mode.
6. air conditioner according to any one of claim 1 to 5, which is characterized in that
The outdoor heat exchanger is constructed by single heat exchanger tube and is formed.
7. air conditioner according to any one of claim 1 to 5, which is characterized in that
The outdoor heat exchanger is constructed by multiple rows of heat exchanger tube and is formed.
8. air conditioner according to any one of claim 1 to 5, which is characterized in that further include:
Outdoor fan is oppositely arranged with the outdoor heat exchanger, and is electrically connected between the controller；
Indoor fan is oppositely arranged with the indoor heat exchanger, and is electrically connected between the controller,
Wherein, in the defrost pattern, the controller controls the outdoor fan reduction of speed, and according to anti-cold wind rule control The indoor fan operation.
9. air conditioner according to any one of claim 1 to 5, which is characterized in that
The throttling set is electric expansion valve；
The control valve is electromagnet cut off valve.
10. air conditioner according to claim 9, which is characterized in that
The first electric expansion valve is provided on first refrigerant pipeline, it is swollen to be provided with the second electronics on second refrigerant pipeline Swollen valve；
It is provided with bi-directional electromagnetic shut-off valve on the first bypass line in parallel with first refrigerant pipeline, with second refrigerant It is provided with unidirectional electromagnet cut off valve or bi-directional electromagnetic shut-off valve on second bypass line of pipeline parallel connection,
Wherein, if the unidirectional electromagnet cut off valve is arranged on second bypass line, the unidirectional electromagnet cut off valve it is unidirectional Conducting direction is from the four-way valve to the outdoor heat exchanger direction.
11. a kind of progress control method, suitable for the air conditioner as described in any one of claims 1 to 10, which is characterized in that The progress control method includes:
The air conditioner runs on heating mode, is determined according to the duty parameter got and switches to defrost by the heating mode Mode opens the auxiliary hot component of electricity in the heating mode；
In the defrost pattern, control four-way valve maintains conducting direction constant, and control open the indoor heat exchanger with Control valve between the outdoor heat exchanger is so that corresponding bypass line is connected.
12. progress control method according to claim 11, which is characterized in that further include:
If opening the auxiliary hot component of electricity in the heating mode, continue to acquire the duty parameter, to be joined according to the operating condition Number continues to test whether have the heating mode to switch to the defrost pattern.
13. progress control method according to claim 11, which is characterized in that the control valve includes being respectively arranged at room The first electromagnet cut off valve and the second electromagnet cut off valve of external heat exchanger two sides, first electromagnet cut off valve is close to indoor heat exchanger Setting, second electromagnet cut off valve are arranged close to four-way valve, and the air conditioner runs on the heating mode, further includes:
In the heating mode, controls first electromagnet cut off valve and close, end corresponding first bypass line；And
It controls second electromagnet cut off valve to open, corresponding second bypass line is connected,
Second electromagnet cut off valve is unidirectional electromagnet cut off valve or bi-directional electromagnetic shut-off valve.
14. progress control method according to claim 13, which is characterized in that the indoor heat exchanger is opened in the control Control valve between the outdoor heat exchanger is so that the conducting of corresponding bypass line, specifically includes:
It controls first electromagnet cut off valve to open, first side bypass line is connected；
And the control second solenoid valve is closed, with second bypass line cut-off.
15. progress control method according to claim 11, which is characterized in that if being switched to by the heating mode described Defrost pattern, further includes:
In the defrost pattern, temperature range belonging to outdoor temperature is determined；
Corresponding first object aperture and the second target aperture are determined according to the temperature range；
It controls the first throttling device and is adjusted to the first object aperture；
It controls the second throttling device and is adjusted to the second target aperture.
16. progress control method according to claim 11, which is characterized in that if being switched to by the heating mode described Defrost pattern, further includes:
In the defrost pattern, if detecting, indoor tube temperature is greater than or equal to the first temperature threshold, controls and opens the room Inner blower, and be positive correlation between the revolving speed control of the indoor fan and the indoor tube temperature；And
Control the outdoor fan fall-back.
17. progress control method according to claim 11, which is characterized in that if being switched to by the heating mode described Defrost pattern, further includes:
In the defrost pattern, the auxiliary hot component of electricity is opened in control.
18. progress control method according to claim 11, which is characterized in that if being switched to by the heating mode described Defrost pattern, further includes:
In the defrost pattern, refrigerant heating device is opened in control.
19. progress control method described in any one of 1 to 18 according to claim 1, which is characterized in that described according to the work Condition parameter, which is determined, to be switched to defrost pattern by the heating mode or opens the auxiliary hot component of electricity in the heating mode, specific to wrap It includes:
In the heating mode, detect that room temperature enters the first temperature threshold section；
Determine multiple second temperature threshold intervals corresponding with first temperature threshold section；
Detect that outdoor temperature enters any second temperature threshold interval, respectively determining and any second temperature threshold value The corresponding defrost unlocking condition in section and auxiliary heating unlocking condition；
Before opening defrosting operation according to the defrost unlocking condition, detect that collected duty parameter and the auxiliary heat Unlocking condition matching then controls the auxiliary hot component of unlatching electricity.
20. progress control method according to claim 19, which is characterized in that it is described according to the duty parameter determine by The heating mode switches to defrost pattern or opens the auxiliary hot component of electricity in the heating mode, specifically further include:
In the frosting detection-phase, if detecting the variable quantity of outdoor tube temperature, and/or between indoor tube temperature and room temperature The variable quantity of the temperature difference meets the defrost unlocking condition, then switches to the defrost pattern,
Wherein, the variable quantity absolute threshold of the outdoor tube temperature in the defrost unlocking condition is greater than auxiliary heating unlocking condition In outdoor tube temperature variable quantity absolute threshold.
21. progress control method described in any one of 1 to 18 according to claim 1, which is characterized in that further include:
During executing defrosting operation, continue to acquire duty parameter, if detecting, the duty parameter satisfaction exits defrost item Part then switches back into the heating mode by the defrost pattern.
22. progress control method according to claim 17, which is characterized in that further include:
If switching back into the heating mode, whether sensing chamber's internal pipe temperature is greater than or equal to second temperature threshold value；
If the interior tube temperature is less than the second temperature threshold value, controls the auxiliary hot component of the electricity and keeps open state, Until the indoor tube temperature rises to more than or equal to the second temperature threshold value.
23. progress control method described in any one of 1 to 18 according to claim 1, which is characterized in that further include:
The air conditioner runs on refrigeration mode, controls first electromagnet cut off valve and closes, so that first bypass line Cut-off；
If second electromagnet cut off valve is unidirectional electromagnet cut off valve, the unidirectional electromagnet cut off valve power-off is controlled, if described Two electromagnet cut off valve are bi-directional electromagnetic shut-off valve, then control the bi-directional electromagnetic shut-off valve and power on, so that second bypass pipe Road conducting.
24. a kind of operating control device is suitable for air conditioner characterized by comprising processor, the processor execute meter It can be realized the step of progress control method as described in any one of claim 11 to 23 limits when calculation machine program.
25. a kind of air conditioner characterized by comprising
Operating control device as claimed in claim 24.
26. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The step of being performed, realizing the progress control method as described in any one of claim 11 to 23.
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