CN109520169A - A kind of control method of air conditioner and air conditioner - Google Patents
A kind of control method of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN109520169A CN109520169A CN201811055067.XA CN201811055067A CN109520169A CN 109520169 A CN109520169 A CN 109520169A CN 201811055067 A CN201811055067 A CN 201811055067A CN 109520169 A CN109520169 A CN 109520169A
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- China
- Prior art keywords
- air conditioner
- heat exchanger
- pipeline
- valve body
- gas
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003507 refrigerant Substances 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000010257 thawing Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 9
- 230000008020 evaporation Effects 0.000 abstract description 6
- 239000002826 coolant Substances 0.000 abstract description 4
- 239000012071 phase Substances 0.000 description 8
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- 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
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention provides the control methods of a kind of air conditioner and air conditioner, are related to air conditioner technical field, and unit is without evaporator when solving the operation of existing air conditioner defrosting mode, the technical issues of be easy to causeing compressor liquid hazards.The air conditioner includes First Heat Exchanger, the second heat exchanger, the first pipeline and the second pipeline, the both ends of first pipeline are connected with the both ends of first throttling device respectively, second pipeline is parallel between four-way valve first exit end and gas-liquid separator, it is provided with second throttling device on second pipeline, is in series with evaporator between the outlet end and gas-liquid separator of the second pipeline.Increase an evaporator, when defrosting mode is run, by gas-liquid two-phase refrigerant evaporation at gas coolant, using by gas-liquid separation, not will cause the liquid hazards of compressor after gas-liquid separator, the reliability of unit is increased substantially；And in refrigeration mode and heating mode, evaporating temperature is improved after increasing an evaporator, promotes unit capacity.
Description
Technical field
The present invention relates to air conditioner technical fields, more particularly, to the control method of a kind of air conditioner and air conditioner.
Background technique
When heating operation, refrigerant absorbs heat evaporation air-conditioning system in outer machine heat exchanger, in certain outdoor temperature
Under damp condition, the vapor in air can gradually be condensed on the tube wall and fin of outer machine heat exchanger, roll up frost layer, drop
The coefficient of heat transfer of low outer machine heat exchanger, to reduce the heating effect of system.Therefore external machine heat exchanger is needed to defrost.Mesh
Preceding Defrost mode is the flow path for changing refrigerant, so that the refrigerant of high temperature and pressure is flowed through outer machine heat exchanger exothermic condensation, then flows through
Indoor unit heat absorption evaporation returns to compressor, and being recycled with this eliminates the frost layer on outer machine condenser.This Defrost mode needs stop
The only heating of a period of time brings adverse effect to user.In addition, during changing refrigerant flow, the high-pressure side of system
Switch rapidly in a short time with low pressure survey, gas phase zone and liquid phase region, causes biggish impact to system, be easy to cause device
Damage, increases the operation risk of air-conditioning system.
As shown in Figure 1, increasing the pipe of the first pipeline 10' and second in systems to not suspend heating under defrosting mode
Road 22', refrigerant can choose without first throttling device 12' and flow directly into outdoor heat exchanger 14' when operation, to utilize
The self-contained heat of refrigerant defrosts to outdoor heat exchanger 14'.But when defrosting mode is run, unit without evaporator,
Gas-liquid two-phase refrigerant still be easy to cause compressor 18' liquid hammer even across gas-liquid separator 24', damages compressor 18', unit
Poor reliability.
And when defrost pattern operation, third valve body 34' connects the pressure value at gas-liquid separator 24' higher than the second throttling dress
Pressure value after setting 26' throttling can not flow to this circuit via the refrigerant of second throttling device 26', and flow path disconnects, and unit is reliable
Property decline.
Summary of the invention
The purpose of the present invention is to provide the control methods of a kind of air conditioner and air conditioner, to solve to exist in the prior art
Defrosting mode operation when unit without evaporator, the technical issues of be easy to causeing compressor liquid hazards.It is provided by the invention all
Many technical effects elaboration as detailed below that optimal technical scheme in more technical solutions can be generated.
To achieve the above object, the present invention provides following technical schemes:
A kind of air conditioner provided by the invention, including First Heat Exchanger, the second heat exchanger, the first pipeline and the second pipeline,
The both ends of first pipeline are connected with the both ends of first throttling device respectively, and second pipeline is parallel to four-way valve first and goes out
Between mouthful end and gas-liquid separator, be provided with second throttling device on second pipeline, the outlet end of second pipeline with
Evaporator is in series between the gas-liquid separator.
Optionally, the first valve body is provided on first pipeline.
Optionally, second pipeline is parallel with the second valve body, and second valve body is set to the four-way valve first and goes out
Between mouth end and the gas-liquid separator.
Optionally, first valve body, the second valve body, first throttling device and second throttling device with air conditioner
Controller electrical connection.
Optionally, when defrosting mode, the First Heat Exchanger and second heat exchanger are condenser.
Optionally, when heating mode, the First Heat Exchanger is evaporator, and second heat exchanger is condenser.
Optionally, when refrigeration mode, the First Heat Exchanger is condenser, and second heat exchanger is evaporator.
A kind of control method for any of the above air conditioner provided by the invention, it is real by the switching for controlling refrigerant flow
Existing switching between air conditioner refrigeration mode, heating mode and defrosting mode.
Optionally, when refrigeration mode, the first valve body and second throttling device are closed, opens first throttling device and the second valve
Body enters the second heat exchanger by first throttling device via the refrigerant of First Heat Exchanger, using four-way valve and the second pipeline
Into evaporator.
Optionally, when heating mode, the first valve body and second throttling device are closed, opens first throttling device and the second valve
Body enters First Heat Exchanger by first throttling device via the refrigerant of the second heat exchanger, using four-way valve and the second pipeline
Into evaporator.
Optionally, when defrosting mode, first throttling device and the second valve body are closed, opens the first valve body and the second throttling dress
It sets, enters First Heat Exchanger by the first pipeline via the refrigerant of the second heat exchanger, enter using four-way valve and the second valve body
Evaporator.
A kind of air conditioner provided by the invention increases an evaporator, when defrosting mode is run, gas-liquid two-phase is cold
Matchmaker flashes to gas coolant, using, by gas-liquid separation, not will cause the liquid hazards of compressor after gas-liquid separator, unit
Reliability increases substantially；And in refrigeration mode and heating mode, evaporating temperature is improved after increasing an evaporator, is promoted
Unit capacity.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of air conditioner of the prior art；
Fig. 2 is the schematic diagram for the air conditioner that a specific embodiment of the invention provides；
Fig. 3 is air conditioner refrigerant flow circuits in defrosting mode in Fig. 2, and arrow is the flow direction of refrigerant in figure；
Fig. 4 is air conditioner refrigerant flow circuits in refrigeration mode in Fig. 2, and arrow is the flow direction of refrigerant in figure；
Fig. 5 is air conditioner refrigerant flow circuits in heating mode in Fig. 2, and arrow is the flow direction of refrigerant in figure；
Fig. 6 is the air condition of that present invention compared with existing air conditioner, and refrigerating capacity promotes situation comparison diagram.
10', the first pipeline in Fig. 1；12', first throttling device；14', outdoor heat exchanger；16', indoor heat exchanger；18',
Compressor；20', four-way valve；22', the second pipeline；24', gas-liquid separator；26', second throttling device；28', the first valve body；
30', the second valve body；32', third pipeline；34', third valve body；
1, compressor in Fig. 2-Fig. 4；2, four-way valve；3, First Heat Exchanger；4, the first valve body；5, first throttling device；6,
Second heat exchanger；7, gas-liquid separator；8, the second valve body；9, second throttling device；10, evaporator.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
As shown in Fig. 2, the present invention provides a kind of air conditioner, including First Heat Exchanger 3, the second heat exchanger 6, the first pipeline
With the second pipeline, the both ends of the first pipeline are connected with the both ends of first throttling device 5 respectively, and the second pipeline is parallel to four-way valve 2
Between first exit end and gas-liquid separator 7, be provided with second throttling device 9 on the second pipeline, the outlet end of the second pipeline with
Evaporator 10 is in series between gas-liquid separator 7.
Increase an evaporator 10 by gas-liquid two-phase refrigerant evaporation at gas coolant, then to pass through when defrosting mode is run
It crosses gas-liquid separation after gas-liquid separator 7, not will cause the liquid hazards of compressor 1, the reliability of unit increases substantially；And
And in refrigeration mode and heating mode, evaporating temperature is improved after increasing an evaporator 10, promotes unit capacity.
Optionally embodiment is provided with the first valve body 4 on the first pipeline.
The first valve body 4 is additionally provided on the first pipeline, the first valve body 4 is equal when air conditioner normally freezes or normally heats
It closes, and the opening when air conditioner enters defrosting mode, this ensure that air conditioner, in non-defrosting mode, refrigerant can lead to
It crosses first throttling device 5 to throttle, so that the feelings of flow path mistake will not occur for refrigerant in defrosting mode and non-defrosting mode
Condition ensure that the normal operation of air conditioner.
Optionally embodiment, the second pipeline are parallel with the second valve body 8, and the second valve body 8 is set to four-way valve 2 first
Between outlet end and gas-liquid separator 7.
In the non-defrosting mode such as refrigeration mode and heating mode, the pipeline of refrigerant operation is arranged second on the pipeline
Valve body 8 guarantees that, when air conditioner is the non-defrosting modes such as refrigeration mode or heating mode, which is open state, cold
Matchmaker is entered in gas-liquid separator 7 by the pipeline, and in defrosting mode, and the second valve body 8 is closed, and refrigerant must be to first pass through the
Two throttling sets 9 enter in gas-liquid separator 7, so that flow path mistake will not occur for refrigerant in defrosting mode and non-defrosting mode
Accidentally the case where, it ensure that the normal operation of air conditioner.
Optionally embodiment, the first valve body 4, the second valve body 8, first throttling device 5 and second throttling device 9
It is electrically connected with the controller of air conditioner.
The first valve body 4, the second valve body 8, first throttling device 5 and the second throttling dress are controlled by the controller of air conditioner
9 are set, guarantees that air conditioner swimmingly realizes the switching of various modes, ensures the reliability service of air conditioner.
Optionally embodiment, when defrosting mode, First Heat Exchanger 3 and the second heat exchanger 6 are condenser.
Optionally embodiment, when heating mode, First Heat Exchanger 3 is evaporator, and the second heat exchanger 6 is condensation
Device.
Optionally embodiment, when refrigeration mode, First Heat Exchanger 3 is condenser, and the second heat exchanger 6 is evaporation
Device.
The present invention provides a kind of control methods for any of the above air conditioner, real by the switching for controlling refrigerant flow
Existing switching between air conditioner refrigeration mode, heating mode and defrosting mode.
Either refrigeration mode, heating mode also when defrost pattern, can form a complete reliable circuit.
Optionally embodiment when refrigeration mode, closes the first valve body 4 and second throttling device 9, opens first segment
Device 5 and the second valve body 8 are flowed, enters the second heat exchanger 6 by first throttling device 5 via the refrigerant of First Heat Exchanger 3, then pass through
It crosses four-way valve 2 and the second pipeline enters evaporator 10.
As shown in figure 4, refrigerating circuit: flowing through First Heat Exchanger 3 by the high temperature and high pressure gas refrigerant of compressor 1, make height
The cold coal of the gas of warm high pressure is condensed into highly pressurised liquid condensation, throttles using first throttling device 5 (closing of the first valve body 4) into gas
The refrigerant of liquid two-phase is steamed by the second heat exchanger 6 and evaporator 10 (second throttling device 9 is closed at this time, and the second valve body 8 is opened)
The gas for sending out into low-temp low-pressure enters compressor 1 after gas-liquid separator 7 and compresses.
Optionally embodiment when heating mode, closes the first valve body 4 and second throttling device 9, opens first segment
Device 5 and the second valve body 8 are flowed, enters First Heat Exchanger 3 by first throttling device 5 via the refrigerant of the second heat exchanger 6, then pass through
It crosses four-way valve 2 and the second pipeline enters evaporator 10.
As shown in figure 5, heating circuit: the high temperature and high pressure gas refrigerant come out by compressor 1 flows through First Heat Exchanger 3, cold
Highly pressurised liquid refrigerant is congealed into, using first throttling device 5 (closing of the first valve body 4) throttling at the refrigerant of gas-liquid two-phase, is passed through
First Heat Exchanger 3 and evaporator 10 (second throttling device 9 is closed at this time, and the second valve body 8 is opened) flash to the gas of low-temp low-pressure
Body enters compressor 1 after the separation of gas-liquid separator 7 and compresses.
Optionally embodiment when defrosting mode, closes first throttling device 5 and the second valve body 8, opens the first valve
Body 4 and second throttling device 9 enter First Heat Exchanger 3 by the first pipeline via the refrigerant of the second heat exchanger 6, using four
Port valve 2 and the second valve body 8 enter evaporator 10.
As shown in figure 3, defrosting circuit: the high temperature and high pressure gas refrigerant come out by compressor 1 flows through the second heat exchanger 6, cold
Highly pressurised liquid refrigerant is congealed into, by the first valve body 4 (without first throttling device 5), and is used as condenser (to make when heating at this time
For evaporator) First Heat Exchanger 3 carry out heat exchange, the frost on First Heat Exchanger 3 is removed, so that refrigerant at this time have passed through
The condensation of First Heat Exchanger 3 and the condensation of the second heat exchanger 6, i.e., be condensed into low temperature liquid after condensing twice.At this time by the
It is low to flash to low temperature by evaporator 10 at the low pressure refrigerant of gas-liquid two-phase for two throttling sets 9 (closing of the second valve body 8), throttling
Gaseous coolant is pressed, after gas-liquid separation, is compressed into compressor 1.
As shown in fig. 6, the gas-liquid two-phase refrigerant after throttling becomes cryogenic gaseous refrigerant after twice evaporation exchanges heat, two
Secondary heat exchange improves the degree of superheat of refrigerant, and refrigerating capacity is promoted by 5-1 in figure to 5-7, increases 1-7, heating capacity is mentioned by 4-2
It is raised to 4-8, promotes 2-8.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (11)
1. a kind of air conditioner, including First Heat Exchanger, the second heat exchanger, the first pipeline and the second pipeline, first pipeline
Both ends are connected with the both ends of first throttling device respectively, and second pipeline is parallel to four-way valve first exit end and gas-liquid separation
Between device, be provided with second throttling device on second pipeline, which is characterized in that the outlet end of second pipeline with it is described
Evaporator is in series between gas-liquid separator.
2. a kind of air conditioner according to claim 1, which is characterized in that be provided with the first valve body on first pipeline.
3. a kind of air conditioner according to claim 2, which is characterized in that second pipeline is parallel with the second valve body, institute
The second valve body is stated to be set between the four-way valve first exit end and the gas-liquid separator.
4. a kind of air conditioner according to claim 3, which is characterized in that first valve body, the second valve body, first throttle
Device and second throttling device are electrically connected with the controller of air conditioner.
5. a kind of air conditioner according to claim 1, which is characterized in that when defrosting mode, the First Heat Exchanger and institute
Stating the second heat exchanger is condenser.
6. a kind of air conditioner according to claim 1, which is characterized in that when heating mode, the First Heat Exchanger is to steam
Device is sent out, second heat exchanger is condenser.
7. a kind of air conditioner according to claim 1, which is characterized in that when refrigeration mode, the First Heat Exchanger is cold
Condenser, second heat exchanger are evaporator.
8. a kind of control method for the described in any item air conditioners of claim 1-7, which is characterized in that by controlling refrigerant
The switching between air conditioner refrigeration mode, heating mode and defrosting mode is realized in the switching of flow path.
9. the control method of air conditioner according to claim 8, which is characterized in that when refrigeration mode, close the first valve body
And second throttling device, first throttling device and the second valve body are opened, is filled via the refrigerant of First Heat Exchanger by first throttle
It sets and enters the second heat exchanger, enter evaporator using four-way valve and the second pipeline.
10. the control method of air conditioner according to claim 9, which is characterized in that when heating mode, close the first valve body
And second throttling device, first throttling device and the second valve body are opened, is filled via the refrigerant of the second heat exchanger by first throttle
It sets and enters First Heat Exchanger, enter evaporator using four-way valve and the second pipeline.
11. the control method of air conditioner according to claim 10, which is characterized in that when defrosting mode, close first segment
Device and the second valve body are flowed, the first valve body and second throttling device are opened, passes through the first pipeline via the refrigerant of the second heat exchanger
Into First Heat Exchanger, enter evaporator using four-way valve and the second valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055067.XA CN109520169B (en) | 2018-09-11 | 2018-09-11 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055067.XA CN109520169B (en) | 2018-09-11 | 2018-09-11 | Air conditioner and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109520169A true CN109520169A (en) | 2019-03-26 |
| CN109520169B CN109520169B (en) | 2024-06-14 |
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ID=65770924
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055067.XA Active CN109520169B (en) | 2018-09-11 | 2018-09-11 | Air conditioner and control method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013065233A1 (en) * | 2011-11-04 | 2013-05-10 | パナソニック株式会社 | Refrigeration cycle apparatus and air conditioner provided with same |
| CN104634009A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Control method for air conditioner circulation device |
| CN205137703U (en) * | 2015-11-17 | 2016-04-06 | 广东美的暖通设备有限公司 | Air -conditioner |
| CN106828015A (en) * | 2017-01-13 | 2017-06-13 | 深圳市科泰新能源车用空调技术有限公司 | A kind of air conditioning for automobiles and battery joint thermal control system |
| CN107940876A (en) * | 2017-11-03 | 2018-04-20 | 广东美的暖通设备有限公司 | The control method of air conditioner and air conditioner |
| CN208952458U (en) * | 2018-09-11 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of defrosting air conditioner |
-
2018
- 2018-09-11 CN CN201811055067.XA patent/CN109520169B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013065233A1 (en) * | 2011-11-04 | 2013-05-10 | パナソニック株式会社 | Refrigeration cycle apparatus and air conditioner provided with same |
| CN104634009A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Control method for air conditioner circulation device |
| CN205137703U (en) * | 2015-11-17 | 2016-04-06 | 广东美的暖通设备有限公司 | Air -conditioner |
| CN106828015A (en) * | 2017-01-13 | 2017-06-13 | 深圳市科泰新能源车用空调技术有限公司 | A kind of air conditioning for automobiles and battery joint thermal control system |
| CN107940876A (en) * | 2017-11-03 | 2018-04-20 | 广东美的暖通设备有限公司 | The control method of air conditioner and air conditioner |
| CN208952458U (en) * | 2018-09-11 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of defrosting air conditioner |
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| Publication number | Publication date |
|---|---|
| CN109520169B (en) | 2024-06-14 |
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