CN109959120A - The Defrost method and air conditioner of air conditioner - Google Patents
The Defrost method and air conditioner of air conditioner Download PDFInfo
- Publication number
- CN109959120A CN109959120A CN201910219565.1A CN201910219565A CN109959120A CN 109959120 A CN109959120 A CN 109959120A CN 201910219565 A CN201910219565 A CN 201910219565A CN 109959120 A CN109959120 A CN 109959120A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- heat exchanger
- defrosting
- defrost method
- throttling set
- 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
Links
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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
Abstract
The present invention provides a kind of Defrost method of air conditioner and air conditioners, the air conditioner includes compressor, indoor heat exchanger, throttling set and outdoor heat exchanger, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation path by pipeline, the Defrost method includes: when the air conditioner meets the first defrosting condition, the air conditioner enters first defrosting mode, under first defrosting mode, the throttling set aperture reaches maximum.The Defrost method and air conditioner of this hair air conditioner, improve defrosting effect, avoid indoor environment temperature and fluctuation occur, reduce commutation failure.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to the Defrost method and air conditioner of a kind of air conditioner.
Background technique
Air conditioner as one kind can adjust indoor environment temperature equipment, operational mode generally include heating operation and
Refrigerating operaton.
When air conditioner heat-production operation, it will lead to frosting feelings if outdoor coil temperature is too low under certain damp condition
Condition, and the heat exchange efficiency that outdoor coil pipe used frosting will lead to outdoor heat exchanger reduces, and influences the heating effect of air conditioner, reduces indoor
Environmental amenity influences user experience.Therefore, in the case of air conditioner is in heating operation, the room to air conditioner is needed
Outer coil pipe in time and effectively defrost.
However, existing defrosting scheme still has following technological deficiency:
1, existing inverse defrosting mode defrosting time is long, and big energy-consuming be easy to cause indoor environment temperature fluctuation, user
Comfort is poor；
2, the existing hot gas bypass defrosting mode ability that defrosts is poor, effective use environment by larger limitation, such as 0 DEG C with
Lower defrost is incomplete, influences heating effect.
3, existing hot gas bypass defrosting mode can not be switched to inverse defrosting in the case where defrosting and completing, and influence comfort
And air-conditioning reliability.
Summary of the invention
In view of this, the present invention is directed to propose the Defrost method and air conditioner of a kind of air conditioner are kept away with improving defrosting effect
Exempt from indoor environment temperature and fluctuation occur, reduces commutation failure.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of Defrost method of air conditioner, the air conditioner include that compressor, indoor heat exchanger, throttling set and outdoor are changed
Hot device, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation path by pipeline,
The Defrost method includes:
When the air conditioner meets the first defrosting condition, the air conditioner enters first defrosting mode, and described the
Under one defrosting mode, the throttling set aperture reaches maximum.
Further, the air conditioner further includes two-port valve, is connected in parallel with the indoor heat exchanger, the Defrost method
Further include:
When the air conditioner meets the second defrosting condition, the air conditioner enters second defrosting mode, and described the
Under two defrosting modes, the two-port valve is opened.
Further, first defrosting mode is thermal storage defrosting mode, and second defrosting mode removes for hot-gas bypass
White mode.
It further, further include accumulation of heat before the throttling set aperture reaches maximum.
Further, in accumulation of heat, stopping the indoor heat exchanger and indoor carry out heat exchange, the two-port valve is closed,
The compressor discharging refrigerant enters the indoor heat exchanger, the indoor heat exchanger accumulation of heat.
Further, first defrosting condition is the outdoor coil temperature less than one first outdoor coil temperature threshold
Value.
Further, second defrosting condition is the outdoor coil temperature less than one second outdoor coil temperature threshold
Value, and the indoor coil pipe is less than an indoor coil pipe threshold value.
A kind of air conditioner, the air conditioner include compressor, indoor heat exchanger, throttling set and outdoor heat exchanger, described
Compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation path by pipeline；The air conditioner
Further include two-port valve, is connected in parallel with the indoor heat exchanger.
Further, the throttling set is mutation expansion valve, and the two-port valve is unidirectional two-port valve.
Further, the maximum opening of the mutation expansion valve is within the scope of 5mm-7mm, and the mutation expansion valve is from complete
The time required to closed state to maximum opening within the scope of 4s-7s.
Compared with the existing technology, the Defrost method of air conditioner of the present invention and air conditioner have the advantage that
(1) present invention is using throttling set (such as mutation expansion valve, be also referred to as mutated heavy caliber electric expansion valve), according to fortune
Row status adjustment is mutated the aperture (in thermal storage defrosting Shi Kaizhi maximum opening) of expansion valve, effectively improves air-conditioner defrosting ability,
Improve defrosting effect.
(2) present invention increases unidirectional two-port valve between the tracheae and liquid pipe of indoor heat exchanger, preferential to use indoor heat exchange
The thermal storage defrosting of device opens the unidirectional two-port valve, using hot gas bypass defrosting, greatly in thermal storage defrosting scarce capacity
Width improves defrosting ability, expands the use scope of hot gas defrosting.
(3) the unidirectional two-port valve is connected in parallel with the indoor heat exchanger, the indoor heat exchanger have heat by from
And its temperature can be made to stablize in a higher level, as a result, after defrosting mode terminates, the time for blowing out hot wind will contract significantly
It is short, user's comfort can be improved to avoid indoor environment temperature fluctuation during defrosting.
(4) hot gas bypass defrosting mode of the present invention reduces significantly on the time compared to inverse defrosting, realizes energy conservation.
(5) commutation that The present invention reduces four-way valves in the case where pressure difference is big, reduces commutation failure as a result, mentions
Air-conditioning quality is risen.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is air conditioner structure of embodiment of the present invention schematic diagram.
Fig. 2 is the Defrost method flow chart of air conditioner of the embodiment of the present invention.
<symbol description>
1- indoor heat exchanger, 2- outdoor heat exchanger, 3- compressor, 4- four-way valve, 5- are mutated expansion valve, the unidirectional two-way of 6-
Valve.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention provides a kind of Defrost method of air conditioner, the air conditioner includes compressor, indoor heat exchanger, throttling
Device and outdoor heat exchanger, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are sequentially connected shape by pipeline
At circulation path, the Defrost method includes: when the air conditioner meets the first defrosting condition, described in the air conditioner entrance
First defrosting mode, under first defrosting mode, the throttling set aperture reaches maximum.First defrosting mode can be
Thermal storage defrosting mode, correspondingly, first defrosting condition can be the outdoor coil temperature less than one first outdoor coil pipe used temperature
Spend threshold value.
The Defrost method utilizes throttling set (such as mutation expansion valve, be also referred to as mutated heavy caliber electric expansion valve), root
The aperture (in thermal storage defrosting Shi Kaizhi maximum opening) that mutation expansion valve is adjusted according to operating status, effectively improves air-conditioner defrosting energy
Power.
Preferably, the air conditioner may also include two-port valve, be connected in parallel with the indoor heat exchanger, the Defrost method
Further include: when the air conditioner meet the second defrosting condition when, the air conditioner enter second defrosting mode, described second
Under defrosting mode, the two-port valve is opened.Second defrosting mode can be hot gas bypass defrosting mode, correspondingly, described the
Two defrosting conditions can be the outdoor coil temperature less than one second outdoor coil temperature threshold value, and the indoor coil pipe is small
In an indoor coil pipe threshold value.
By increasing unidirectional two-port valve between the tracheae and liquid pipe of indoor heat exchanger, the preferential storage for using indoor heat exchanger
Heat defrosting is opened the unidirectional two-port valve and is substantially improved using hot gas bypass defrosting in thermal storage defrosting scarce capacity
Defrosting ability, expands the use scope of hot gas defrosting.Moreover, because the unidirectional two-port valve and the indoor heat exchanger are simultaneously
Connection connection, the indoor heat exchanger have heat by so as to make its temperature stablize in a higher level, therefore, in defrosting mode
After end, the time for blowing out hot wind will be greatly shortened, and can be improved to avoid indoor environment temperature fluctuation during defrosting
User's comfort.
In addition, the Defrost method of air conditioner of the invention further includes storing before the throttling set aperture reaches maximum
Heat stops the indoor heat exchanger and indoor carry out heat exchange in accumulation of heat, and the two-port valve is closed, the compressor discharge
Refrigerant enters the indoor heat exchanger, the indoor heat exchanger accumulation of heat.
The present invention also provides a kind of air conditioner, the air conditioner includes compressor, indoor heat exchanger, throttling set and room
External heat exchanger, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation by pipeline and lead to
Road；The air conditioner further includes two-port valve, is connected in parallel with the indoor heat exchanger.
Specifically, the throttling set is mutation expansion valve, the two-port valve is unidirectional two-port valve.More specifically, institute
The maximum opening of mutation expansion valve is stated within the scope of 5mm-7mm, the mutation expansion valve is from completely closed state to maximum opening
Required time is within the scope of 4s-7s.
In one embodiment, as shown in Figure 1, the air conditioner includes: indoor heat exchanger 1 (specially evaporator), outdoor
Heat exchanger 2 (specially condenser), compressor 3, four-way valve 4, mutation expansion valve 5 (specially mutation heavy caliber electric expansion valve)
And unidirectional two-port valve 6；Wherein, the first end of the indoor heat exchanger is connect with the four-way valve first interface；The mutation is swollen
The first interface of swollen valve is connect with the second end of the indoor heat exchanger；The first end of the outdoor heat exchanger and the mutation are swollen
The second interface of swollen valve connects, and the second end of the outdoor heat exchanger is connect with the second interface of the four-way valve；The compression
The input, output end of machine is connect with the four-way valve third interface, the 4th interface respectively；The unidirectional two-port valve and the room
Interior heat exchanger is connected in parallel.
In the present embodiment, the maximum opening of the mutation heavy caliber expansion valve is 6mm, and aperture is opened from 0mm to needed for 6mm
Time is 6s.Compared with existing expansion valve, the maximum opening that the present invention is mutated expansion valve is significantly increased, and opens to maximum opening
Time significantly shortens, basic to realize without throttling action on applying to 7mm caliber, is conducive to further increase defrosting effect.
The operational mode of the air conditioner includes heating mode, the first defrosting mode (thermal storage defrosting mode) and the second defrosting
Mode (hot gas bypass defrosting mode).
In a heating mode, the inner blower operation of the air conditioner, the unidirectional two-port valve are closed, and it is swollen to adjust the mutation
Swollen valve was opened to suitable aperture (being less than the maximum opening), and the high-temperature high-pressure refrigerant of the compressor discharge enters the room
Interior heat exchanger carries out heat with room air and exchanges, so that indoor environment temperature be made to increase.
Under thermal storage defrosting mode, the inner blower of the air conditioner, which is shut down, (stops the heat of indoor heat exchanger and indoor gas
Exchange), the unidirectional two-port valve is closed, and the high-temperature high-pressure refrigerant of the compressor discharge enters the indoor heat exchanger, institute
Indoor heat exchanger accumulation of heat is stated, after so that temperature is risen to 55 DEG C by accumulation of heat, the mutation expansion valve is adjusted and opens to maximum opening, system
Cryogen enters the outdoor heat exchanger by the mutation expansion valve, using the amount of stored heat of the refrigerant to outdoor coil pipe used progress
Defrosting.
Under hot gas bypass defrosting mode, the unidirectional two-port valve is opened, the high temperature and pressure refrigeration of the compressor discharge
Agent enters the outdoor heat exchanger through the unidirectional two-port valve, and about 90% heat is by the unidirectional two-port valve to the room
Outer coil pipe defrosts.Since the unidirectional two-port valve is in parallel with the indoor heat exchanger, the indoor heat exchanger has heat logical
It crosses thus its temperature can be made to stablize in a higher level, after defrosting mode terminates, the time for blowing out hot wind will significantly
Shorten, user's comfort can be improved to avoid indoor environment temperature fluctuation.
In another embodiment, as shown in Fig. 2, a kind of Defrost method of air conditioner, comprising:
Determine whether to meet the first defrosting condition, that is, judge whether to need defrost, can be according to outdoor coil temperature judgement
It is no to need defrost；First defrosting condition is, for example, the outdoor coil temperature less than 0 DEG C, correspondingly, if the outdoor disk
Tube temperature degree then illustrates to need defrost less than 0 DEG C；Certainly, judge whether that the method for needing defrost is not limited to that；
If meeting the first defrosting condition, the transducer air conditioning enters first defrosting mode: heat exchange in control room
Device accumulation of heat, inner blower are shut down, and unidirectional two-port valve is closed, and after the indoor heat exchanger regenerator temperature rises to 55 DEG C, adjust institute
It states mutation expansion valve to open to maximum opening (caliber for being equivalent to φ 6), carries out thermal storage defrosting, outer fan parking；
Determine whether to meet the second defrosting condition, that is, judges whether thermal storage defrosting ability is insufficient, specifically, can be according to outdoor
Coil temperature judgement defrosting situation, judges accumulation of heat situation according to indoor coil pipe；Second defrosting condition is, for example, described
Less than 0 DEG C of outdoor coil temperature (if less than 0 DEG C, illustrating that current frosting is more), and the indoor coil pipe less than 30 DEG C (if
Less than 30 DEG C, illustrate that current accumulation of heat is less), correspondingly, if the outdoor coil temperature less than 0 DEG C, and the indoor coil temperature
Degree then illustrates thermal storage defrosting scarce capacity less than 30 DEG C；Certainly, judge the whether insufficient method of thermal storage defrosting ability and not only limit
In this；
If meeting the second defrosting condition, thermal storage defrosting scarce capacity, then the transducer air conditioning enters second defrosting
Mode: the control unidirectional two-port valve is opened, and hot gas bypass defrosting is carried out.
Wherein it is possible to first pass through outdoor coil pipe used judgement defrosting situation, i.e., certain time is run through first defrosting mode
Outdoor coil pipe used current frosting situation can exit defrosting mode if frosting is less afterwards；It, can be into one if frosting is more
Step judges accumulation of heat situation by indoor coil, if accumulation of heat is more, can continue to run the first defrosting mode, otherwise run second
Defrosting mode；After defrosting is completed, defrosting mode is exited, the mutation expansion valve is adjusted and opens to suitable aperture (less than maximum
Aperture), outer fan operation, indoor unit accumulation of heat, inner blower operation.
The present invention is defrosted using amount of stored heat, than general hot gas bypass defrosting capability improving；In thermal storage defrosting ability
When insufficient, using hot gas bypass defrosting, defrosting ability at this time is close to inverse defrosting mode, thus, it is possible at low ambient temperatures
Realize hot gas bypass defrosting.
In addition, the present invention judge whether to need to carry out defrost, judge thermal storage defrosting ability whether deficiency etc. can be using existing
Some judgment modes, however it is not limited to the specific judgment mode disclosed in embodiment.
So far, attached drawing is had been combined to the present invention have been described in detail.According to above description, those skilled in the art are answered
When to the air condition of that present invention Defrost method and air conditioner have clear understanding.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of Defrost method of air conditioner, the air conditioner includes compressor, indoor heat exchanger, throttling set and outdoor heat exchange
Device, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation path by pipeline,
It is characterized in that, the Defrost method includes:
When the air conditioner meets the first defrosting condition, the air conditioner enters first defrosting mode, and described first removes
Under white mode, the throttling set aperture reaches maximum.
2. Defrost method according to claim 1, which is characterized in that the air conditioner further includes two-port valve, with the room
Interior heat exchanger is connected in parallel, the Defrost method further include:
When the air conditioner meets the second defrosting condition, the air conditioner enters second defrosting mode, and described second removes
Under white mode, the two-port valve is opened.
3. Defrost method according to claim 2, which is characterized in that first defrosting mode is thermal storage defrosting mode,
Second defrosting mode is hot gas bypass defrosting mode.
4. Defrost method according to claim 3, which is characterized in that before the throttling set aperture reaches maximum,
It further include accumulation of heat.
5. Defrost method according to claim 4, which is characterized in that in accumulation of heat, stop the indoor heat exchanger and room
Interior carry out heat exchange, the two-port valve are closed, and the compressor discharging refrigerant enters the indoor heat exchanger, and the interior is changed
Hot device accumulation of heat.
6. Defrost method according to claim 1, which is characterized in that first defrosting condition is the outdoor coil pipe used temperature
Degree is less than one first outdoor coil temperature threshold value.
7. Defrost method according to claim 2, which is characterized in that second defrosting condition is the outdoor coil pipe used temperature
Degree is less than one second outdoor coil temperature threshold value, and the indoor coil pipe is less than an indoor coil pipe threshold value.
8. a kind of air conditioner, which is characterized in that the air conditioner includes that compressor, indoor heat exchanger, throttling set and outdoor are changed
Hot device, the compressor, indoor heat exchanger, throttling set and outdoor heat exchanger are in turn connected to form circulation path by pipeline；
The air conditioner further includes two-port valve, is connected in parallel with the indoor heat exchanger.
9. air conditioner according to claim 8, which is characterized in that the throttling set is mutation expansion valve, the two-way
Valve is unidirectional two-port valve.
10. air conditioner according to claim 9, which is characterized in that the maximum opening of the mutation expansion valve is in 5mm-7mm
In range, the mutation expansion valve from completely closed state to maximum opening the time required within the scope of 4s-7s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219565.1A CN109959120B (en) | 2019-03-21 | 2019-03-21 | Defrosting method of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219565.1A CN109959120B (en) | 2019-03-21 | 2019-03-21 | Defrosting method of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109959120A true CN109959120A (en) | 2019-07-02 |
| CN109959120B CN109959120B (en) | 2021-03-19 |
Family
ID=67024775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910219565.1A Active CN109959120B (en) | 2019-03-21 | 2019-03-21 | Defrosting method of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109959120B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173818A (en) * | 2019-07-11 | 2019-08-27 | 芜湖美智空调设备有限公司 | Air conditioner and its control method, control device and computer readable storage medium |
| CN110332651A (en) * | 2019-07-25 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | A kind of defrosting control method, device and air conditioner |
| CN110567183A (en) * | 2019-09-16 | 2019-12-13 | 珠海格力电器股份有限公司 | Air conditioner and defrosting control method thereof |
| CN110736203A (en) * | 2019-09-25 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110940055A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Heating and defrosting control method and device for air conditioner and air conditioner |
| CN112984708A (en) * | 2021-03-03 | 2021-06-18 | 广东Tcl智能暖通设备有限公司 | Air conditioner defrosting method, air conditioner control method and air conditioner |
| WO2021223496A1 (en) * | 2020-07-31 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling temperature increase and sterilization of air conditioner, and air conditioner |
| WO2021223495A1 (en) * | 2020-07-31 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and device used to control air conditioner heating sterilization, and air conditioner |
| CN114963406A (en) * | 2022-05-23 | 2022-08-30 | 南京天加环境科技有限公司 | Control method for improving operation reliability of long connecting pipe unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09250833A (en) * | 1996-03-15 | 1997-09-22 | Toshiba Corp | Air conditioner |
| JPH09318229A (en) * | 1996-05-24 | 1997-12-12 | Mitsubishi Heavy Ind Ltd | Refrigerating device |
| CN102062504A (en) * | 2010-12-24 | 2011-05-18 | 中国扬子集团滁州扬子空调器有限公司 | Split type heat pump frequency conversion air conditioner which is defrosting nonstop machine and defrosting control method |
| CN102116549A (en) * | 2011-03-15 | 2011-07-06 | 宁波奥克斯电气有限公司 | Method for defrosting of direct current variable frequency heat pump air conditioner |
| CN102523753A (en) * | 2010-09-08 | 2012-06-27 | 松下电器产业株式会社 | Refrigeration cycle apparatus |
| CN103162461A (en) * | 2011-12-13 | 2013-06-19 | 珠海格力电器股份有限公司 | Air-conditioner and defrost control method applied for air-conditioner |
-
2019
- 2019-03-21 CN CN201910219565.1A patent/CN109959120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09250833A (en) * | 1996-03-15 | 1997-09-22 | Toshiba Corp | Air conditioner |
| JPH09318229A (en) * | 1996-05-24 | 1997-12-12 | Mitsubishi Heavy Ind Ltd | Refrigerating device |
| CN102523753A (en) * | 2010-09-08 | 2012-06-27 | 松下电器产业株式会社 | Refrigeration cycle apparatus |
| CN102062504A (en) * | 2010-12-24 | 2011-05-18 | 中国扬子集团滁州扬子空调器有限公司 | Split type heat pump frequency conversion air conditioner which is defrosting nonstop machine and defrosting control method |
| CN102116549A (en) * | 2011-03-15 | 2011-07-06 | 宁波奥克斯电气有限公司 | Method for defrosting of direct current variable frequency heat pump air conditioner |
| CN103162461A (en) * | 2011-12-13 | 2013-06-19 | 珠海格力电器股份有限公司 | Air-conditioner and defrost control method applied for air-conditioner |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173818A (en) * | 2019-07-11 | 2019-08-27 | 芜湖美智空调设备有限公司 | Air conditioner and its control method, control device and computer readable storage medium |
| CN110332651A (en) * | 2019-07-25 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | A kind of defrosting control method, device and air conditioner |
| CN110567183A (en) * | 2019-09-16 | 2019-12-13 | 珠海格力电器股份有限公司 | Air conditioner and defrosting control method thereof |
| CN110736203A (en) * | 2019-09-25 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110940055A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Heating and defrosting control method and device for air conditioner and air conditioner |
| WO2021223496A1 (en) * | 2020-07-31 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling temperature increase and sterilization of air conditioner, and air conditioner |
| WO2021223495A1 (en) * | 2020-07-31 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and device used to control air conditioner heating sterilization, and air conditioner |
| CN112984708A (en) * | 2021-03-03 | 2021-06-18 | 广东Tcl智能暖通设备有限公司 | Air conditioner defrosting method, air conditioner control method and air conditioner |
| CN114963406A (en) * | 2022-05-23 | 2022-08-30 | 南京天加环境科技有限公司 | Control method for improving operation reliability of long connecting pipe unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109959120B (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109959120A (en) | The Defrost method and air conditioner of air conditioner | |
| CN107289578B (en) | Air conditioner and defrosting control method thereof | |
| CN103363708A (en) | Heat pump type air conditioning device | |
| KR100717444B1 (en) | The mothod for control airconditioner and multy-airconditioner | |
| JP4654828B2 (en) | Air conditioner | |
| WO2018129839A1 (en) | Heat storage assembly and air conditioner | |
| CN103363600A (en) | Heat pump type air conditioning device | |
| US20080028773A1 (en) | Air conditioner and controlling method thereof | |
| CN103363707B (en) | Heat pump type air adjusting device | |
| CN105003982B (en) | A kind of control method of air-conditioning system | |
| JP2007051825A (en) | Air-conditioner | |
| CN104748464A (en) | Multiple on-line defrosting method and device of air conditioning system and air conditioner | |
| CN108168138A (en) | Outdoor unit, air-conditioning system and control method | |
| CN103363601A (en) | Heat pump type air conditioning device | |
| CN106288562A (en) | The defrosting of a kind of air source heat pump system controls devices and methods therefor | |
| CN103363709A (en) | Heat pump type air conditioning device | |
| JP4624223B2 (en) | Refrigeration system | |
| WO2022267886A1 (en) | Anti-frost control method for air conditioner and air conditioner | |
| CN202546973U (en) | Heat pump type air conditioning device | |
| CN202511516U (en) | Heat pump type air conditioning device | |
| CN107504708B (en) | Air conditioning system and control method thereof | |
| CN111121337B (en) | Air conditioner double-condenser defrosting method and air conditioner | |
| KR100575682B1 (en) | Air conditioner with equalization pipe between out door units | |
| CN202546972U (en) | Heat pump type air conditioning device | |
| CN107401851B (en) | Air conditioner system and control method for defrosting without stopping air conditioner system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |