CN105465956B - A kind of control method of twin-tub variable capacitance air conditioner - Google Patents
A kind of control method of twin-tub variable capacitance air conditioner Download PDFInfo
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- CN105465956B CN105465956B CN201510962435.9A CN201510962435A CN105465956B CN 105465956 B CN105465956 B CN 105465956B CN 201510962435 A CN201510962435 A CN 201510962435A CN 105465956 B CN105465956 B CN 105465956B
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- variable capacitance
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Classifications
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- 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
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
- F24F11/64—Electronic processing using pre-stored data
Abstract
The present invention discloses a kind of control method of twin-tub variable capacitance air conditioner.Method includes step：When twin-tub variable capacitance air conditioner, which is run, to freeze, if indoor unit return air temperature RT is in the process of temperature decline, as difference DELTA T=t of return air temperature RT and design temperature ST1When, run in a manner of twin-tub, as the difference DELTA T=tnIn the range of when, run in a manner of single cylinder, as the difference DELTA T=tminWhen, duplex cylinder compressor out of service；The t1Value range be 2 ~ 34 DEG C, the tnValue range be 0.3 ~ 0.8 DEG C, the tminValue range be 0.8 ~ 0.3 DEG C；If indoor unit return air temperature RT is in the process of temperature rising, as the difference DELTA T=t1When, duplex cylinder compressor is run in a manner of twin-tub, as the difference DELTA T=tnWhen+1, the duplex cylinder compressor is run in a manner of single cylinder, as the difference DELTA T=tminWhen, the duplex cylinder compressor out of service.It can ensure that there is higher efficiency to the control method of the present invention, and temperature change fluctuating is small, and comfort is preferable.
Description
Technical field
The present invention relates to field of air conditioning, more particularly to a kind of control method of twin-tub variable capacitance air conditioner.
Background technology
Energy conservation and environmental protection is the development trend of air conditioner industry.In the prior art, air conditioner is generally by judging room temperature
The work of air conditioner is controlled with the difference of design temperature, reaches reduction and improves the temperature in room.This mode needs continuous
Huge discharge air-conditioner system is opened and closed, causes temperature change larger, comfort is poor, is dragged especially for an outer machine multiple
The situation of interior machine, its comfort and efficiency all cannot be guaranteed.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of controlling party of twin-tub variable capacitance air conditioner
Method, it is intended to solve the problems such as existing air conditioner its temperature change is big, efficiency cannot be guaranteed.
Technical scheme is as follows：
A kind of control method of twin-tub variable capacitance air conditioner, wherein, including step：
S1, duplex cylinder compressor are started, and are run in a manner of twin-tub；
S2, when twin-tub variable capacitance air conditioner run freeze when, monitor the variation tendency of the return air temperature RT of indoor unit, and calculate
The difference DELTA T of return air temperature RT and design temperature ST；
If S3, indoor unit return air temperature RT are in the process of temperature decline, if the difference DELTA T=t1When, the twin-tub
Compressor is run in a manner of twin-tub；
As the difference DELTA T=tnWhen, run in a manner of single cylinder,
As the difference DELTA T=tminWhen, duplex cylinder compressor out of service；
The t1Value range be 2 ~ 34 DEG C, the tnValue range be 0.3 ~ 0.8 DEG C, the tminValue range
For -0.8 ~ -0.3 DEG C；
If S4, indoor unit return air temperature RT are in the process of temperature rising, if working as the difference DELTA T=t1When, twin-tub pressure
Contracting machine is run in a manner of twin-tub,
As the difference DELTA T=tnWhen+1, the duplex cylinder compressor is run in a manner of single cylinder,
As the difference DELTA T=tminWhen, the duplex cylinder compressor out of service.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step S4：
If S5, continuous first scheduled time detect heat exchanger coil temperature IPT≤t of indoor unitf, the twin-tub pressure
Contracting machine is then run in a manner of single cylinder, and forces outdoor fan and the indoor fan operation of twin-tub variable capacitance air conditioner, tfIt is to enter
Protect temperature spot.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step S5：
If S6, continuous second scheduled time detect heat exchanger coil temperature IPT >=t of indoor unitf, then it is out of service
Duplex cylinder compressor, and force outdoor fan and the indoor fan operation of twin-tub variable capacitance air conditioner, tfIt is to enter protection temperature spot.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step S6：
S7, after first scheduled time of duplex cylinder compressor out of service, if detecting the heat exchanger coil temperature of indoor unit
Spend IPT >=tk, then outdoor fan and duplex cylinder compressor are started, and indoor fan recovers to the ortho states before step S5, tkIt is to exit
Temperature spot.
The control method of the twin-tub variable capacitance air conditioner, wherein, the tfValue range be 1 ~ 2 DEG C, the tkTake
It is 4 ~ 5 DEG C to be worth scope.
A kind of control method of twin-tub variable capacitance air conditioner, wherein, including step：
N1, duplex cylinder compressor are started, and are run in a manner of twin-tub；
N2, when twin-tub variable capacitance air conditioner runs and heats, the change of return air temperature CRT after monitoring indoor unit is compensated becomes
Gesture, and calculate the difference DELTA M of CRT and design temperature ST；
If N3, it is compensated after return air temperature CRT be in temperature rising process, as the difference DELTA M=a1When,
Duplex cylinder compressor out of service,
As the difference DELTA M=a2When, the duplex cylinder compressor is run in a manner of single cylinder,
As the difference DELTA M=anWhen, the duplex cylinder compressor is run in a manner of twin-tub；
The a1Value range be 0 ~ 34 DEG C, a2Value range be -2 ~ 0 DEG C, anValue range for-
34~-2℃；
If N4, it is compensated after return air temperature CRT be in temperature decline process, as the difference DELTA M=a1When,
Duplex cylinder compressor out of service,
As the difference DELTA M=a2When, the duplex cylinder compressor is then run in a manner of single cylinder,
As the difference DELTA M=anWhen+1, the duplex cylinder compressor is then run in a manner of twin-tub.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step N4：
If N5, the heat exchanger coil temperature IPT >=a for detecting indoor unitg, the duplex cylinder compressor is then in a manner of single cylinder
Operation, agValue range be 52 ~ 54 DEG C.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step N5：
If N6, the heat exchanger coil temperature IPT >=a for detecting indoor unitz, then close twin-tub variable capacitance air conditioner outdoor
Wind turbine, azValue range be 55 ~ 57 DEG C.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step N6：
If N7, the heat exchanger coil temperature IPT >=a for detecting indoor unitmax, then duplex cylinder compressor out of service, and by force
The indoor fan operation of twin-tub variable capacitance air conditioner processed, amaxValue range be 65 ~ 68 DEG C.
The control method of the twin-tub variable capacitance air conditioner, wherein, further included after the step N7：
If N8, the heat exchanger coil temperature IPT≤a for detecting indoor unitc, then open twin-tub variable capacitance air conditioner outdoor
Wind turbine and duplex cylinder compressor, and make the ortho states before the indoor fan recovering step N5 of twin-tub variable capacitance air conditioner, acValue range
For 47 ~ 49 DEG C.
Beneficial effect：The control method of the present invention, by the size of the difference between return air temperature and design temperature and
The variation tendency of return air temperature is detected, and the method for operation of duplex cylinder compressor to be adjusted, it can ensure that with higher
Efficiency, and temperature change rise and fall it is small, comfort is preferable.
Brief description of the drawings
Fig. 1 is the structure diagram of twin-tub variable capacitance air conditioner in the present invention.
Fig. 2 is a kind of flow chart of the control method first embodiment of twin-tub variable capacitance air conditioner of the present invention.
Fig. 3 is a kind of flow chart of the control method second embodiment of twin-tub variable capacitance air conditioner of the present invention.
Embodiment
The present invention provides a kind of control method of twin-tub variable capacitance air conditioner, to make the purpose of the present invention, technical solution and effect
Fruit is clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, the twin-tub variable capacitance air conditioner in the present invention includes indoor unit and outdoor unit, set in indoor unit therein
Evaporator 9 is equipped with, duplex cylinder compressor 1 is provided with outdoor unit（Specifically include fixed operation cylinder and adjustable operation cylinder）, high pressure cut
Only valve 2, throttle part 4, condenser 6, four-way reversing valve 7, low-pressure shutoff valve 8, wherein 9 one end of evaporator are connected to high-pressure stop
Valve 2, other end connection low-pressure shutoff valve 8, the high-pressure stop valve 2 are also attached to one end of the throttle part 4, the throttling
4 other end of component connects condenser 6, and the condenser 6 is also attached to the first of four-way reversing valve 7, the low-pressure shutoff valve 8
Second mouthful of four-way reversing valve 7 is also attached to, the 3rd mouthful of row for being connected to the duplex cylinder compressor 1 of the four-way reversing valve 7
Gas port 5, the 4th mouthful of gas returning port 3 for being connected to the duplex cylinder compressor 1 of the four-way reversing valve 7.
When duplex cylinder compressor 1 starts, first start fixed operation cylinder, after a period of time, restart adjustable operation cylinder.It is double
The switching time for the solenoid valve that the solenoid valve and exhaust outlet 5 that the gas returning port 3 of cylinder compressor 1 is connected are connected at intervals of n1 seconds,
Such as 5 ~ 10 seconds.
In order to protect compressor, compressor single cylinder continuously run n it is small when（As 1 ~ 2 it is small when）Afterwards, it is necessary to start twin-tub operation n
Minute（Such as 3 ~ 5 minutes）.Start operation n minutes in duplex cylinder compressor（Twin-tub is run）Afterwards, then the change of temperature is responded, that is, responded
The change control of single, double cylinder；When receiving mode conversion signal, be delayed n2 seconds translative mode（Such as 3 ~ 5 seconds）.
The control method first embodiment of the present invention, as shown in Fig. 2, it is mainly included the following steps that：
S1, duplex cylinder compressor are started, and are run in a manner of twin-tub（Such as run 3 ~ 5 minutes）；
S2, when twin-tub variable capacitance air conditioner run freeze when, monitor the variation tendency of the return air temperature RT of indoor unit, and calculate
The difference DELTA T of return air temperature RT and design temperature ST；Its scope of design temperature ST therein is generally 16 ~ 31 DEG C.
If S3, indoor unit return air temperature RT are in the process of temperature decline, if the difference DELTA T=t1When, the twin-tub
Compressor is run in a manner of twin-tub；
As the difference DELTA T=tnWhen, the duplex cylinder compressor is run in a manner of single cylinder；
As the difference DELTA T=tminWhen, duplex cylinder compressor out of service；
The t1Value range be 2 ~ 34 DEG C, the tnValue range be 0.3 ~ 0.8 DEG C, the tminValue range
For -0.8 ~ -0.3 DEG C；That is, when the return air temperature RT is more than design temperature ST, and difference is larger, illustrates that needs are fast
To reach design temperature ST, i.e. duplex cylinder compressor is run prompt drop temperature in a manner of twin-tub, when difference DELTA T narrows down to 0.3 ~ 0.8 DEG C
In the range of when, then gap is smaller, only need to be run in a manner of single cylinder, when difference has reached in the range of -0.8 ~ -0.3 DEG C, explanation
Return air temperature RT is slightly already less than design temperature ST, duplex cylinder compressor out of service.
If S4, indoor unit return air temperature RT are in the process of temperature rising, if working as the difference DELTA T=t1When, twin-tub pressure
Contracting machine is run in a manner of twin-tub；
As the difference DELTA T=tnWhen+1, the duplex cylinder compressor is run in a manner of single cylinder；
As the difference DELTA T=tminWhen, the duplex cylinder compressor out of service.With step S4, although at return air temperature RT
In the process of rising, but since difference is still in t1In the range of, then explanation has larger gap, twin-tub pressure with design temperature ST
Contracting machine needs to run in a manner of twin-tub, when difference is in tnDuring+1 scope, gap is contracted to a certain range, only need to be with single cylinder side
Formula is run, and last return air temperature RT is slightly lower than design temperature ST, then duplex cylinder compressor out of service.
Further included after the step S4：
If S5, continuous first scheduled time detect heat exchanger coil temperature IPT≤t of indoor unitf, then the twin-tub
Compressor is run in a manner of single cylinder, and forces outdoor fan and the indoor fan operation of twin-tub variable capacitance air conditioner, and described first
The scheduled time is preferably 3min.tfIt is to enter protection temperature spot, the tfValue range be preferably 1 ~ 2 DEG C.I.e. continuous 3min
Afterwards, IPT is less than tf, then the duplex cylinder compressor need to only be run in a manner of single cylinder, and force outdoor fan and indoor fan to be transported
OK.
Further included after the step S5：
If S6, continuous second scheduled time detect heat exchanger coil temperature IPT >=t of indoor unitf, then it is out of service
Duplex cylinder compressor, and force the outdoor fan of twin-tub variable capacitance air conditioner and indoor fan operation, second scheduled time excellent
Elect 1min as.I.e. continuous 1min IPT are more than tf, then duplex cylinder compressor out of service, and force outdoor fan and indoor fan to be transported
OK.
Further included after the step S6：
S7, after first scheduled time of duplex cylinder compressor out of service, if detecting the heat exchanger coil temperature of indoor unit
Spend IPT >=tk, then outdoor fan and duplex cylinder compressor, and the ortho states before indoor fan recovering step S5, t are startedkExit temperature
Point, the tkValue range be preferably 4 ~ 5 DEG C.After duplex cylinder compressor 3min i.e. out of service, if detecting IPT >=tk, then need
Start outdoor fan and duplex cylinder compressor, duplex cylinder compressor recovers to the ortho states before step S5 after running three minutes.
The control method second embodiment of the present invention, as shown in figure 3, it includes step：
N1, duplex cylinder compressor are started, and are run in a manner of twin-tub（Such as run 3 ~ 5min）；
N2, when twin-tub variable capacitance air conditioner run heat when, (indoor unit return air temperature RT is compensated during heating mode,
I.e.：Return air temperature CRT=RT-Tb after compensation, CRT-ST=M DEG C of Δ）, monitor the variation tendency of CRT in real time, and calculate
The difference DELTA M of CRT and design temperature ST；
N3：If the return air temperature CRT after compensated is in the process of temperature rising, as the difference DELTA M=a1When,
Duplex cylinder compressor out of service；
As the difference DELTA M=a2When, the duplex cylinder compressor is run in a manner of single cylinder；
As the difference DELTA M=anWhen, the duplex cylinder compressor is run in a manner of twin-tub；
The a1Value range be 0 ~ 34 DEG C, a2Value range be -2 ~ 0 DEG C, anValue range for-
34~-2℃.That is, when CRT is more than ST, then need not continue to heat, so duplex cylinder compressor out of service, when CRT is less than
ST and gap is smaller, the duplex cylinder compressor is then run in a manner of single cylinder, when CRT is less than ST and gap is larger, institute
Stating duplex cylinder compressor then needs twin-tub mode to run, quick heating.
N4：If the return air temperature CRT after compensated is in the process of temperature decline, as the difference DELTA M=a1Model
When enclosing interior, duplex cylinder compressor out of service；
As the difference DELTA M=a2When, the duplex cylinder compressor is then run in a manner of single cylinder；
As the difference DELTA M=anWhen+1, the duplex cylinder compressor is then run in a manner of twin-tub.It is more than with step N4, CRT
ST, then need not continue to heat, duplex cylinder compressor out of service, when CRT is smaller less than ST gaps（In a2In the range of）, it is described double
Cylinder compressor is then run in a manner of single cylinder, and when difference is larger, the duplex cylinder compressor is then run in a manner of twin-tub.
Further included after the step N4：
If N5, the heat exchanger coil temperature IPT >=a for detecting indoor unitg, the duplex cylinder compressor is then in a manner of single cylinder
Operation, agIt is single cylinder compressor operating temperature, agValue range be preferably 52 ~ 54 DEG C.
Further included after the step N5：
If N6, the heat exchanger coil temperature IPT >=a for detecting indoor unitz, then close twin-tub variable capacitance air conditioner outdoor
Wind turbine, azIt is wind turbine operating temperature, azValue range be preferably 55 ~ 57 DEG C；
Further included after the step N6：
If N7, the heat exchanger coil temperature IPT >=a for detecting indoor unitmax, then duplex cylinder compressor out of service, and by force
The indoor fan operation of twin-tub variable capacitance air conditioner processed, amaxIt is the operating temperature of close compressor, amaxValue range be preferably
65 ~ 68 DEG C,
Further included after the step N7：
If N8, the heat exchanger coil temperature IPT≤a for detecting indoor unitc, then open twin-tub variable capacitance air conditioner outdoor
Wind turbine and duplex cylinder compressor（Duplex cylinder compressor can recover after 3min is run to the ortho states before step N5）, and make twin-tub transfiguration empty
The indoor fan of device is adjusted to recover to the ortho states before step N5, acIt is the judgement temperature resumed operation, acValue range be preferably 47
~49℃。
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (9)
1. a kind of control method of twin-tub variable capacitance air conditioner, it is characterised in that including step：
S1, duplex cylinder compressor are started, and are run in a manner of twin-tub；
S2, when twin-tub variable capacitance air conditioner run freeze when, monitor the variation tendency of the return air temperature RT of indoor unit, and calculate return air
The difference DELTA T of temperature RT and design temperature ST；
If S3, indoor unit return air temperature RT are in the process of temperature decline, if the difference DELTA T=t1When, the twin-tub compression
Machine is run in a manner of twin-tub；
As the difference DELTA T=tnWhen, the duplex cylinder compressor is run in a manner of single cylinder,
As the difference DELTA T=tminWhen, duplex cylinder compressor out of service；
The t1Value range be 1 ~ 34 DEG C, the tnValue range be 0.3 ~ 0.8 DEG C, the tminValue range for-
0.8~-0.3℃；
If S4, indoor unit return air temperature RT are in the process of temperature rising, if the difference DELTA T=t1When, the twin-tub compression
Machine is run in a manner of twin-tub,
As the difference DELTA T=tnWhen+1, the duplex cylinder compressor is run in a manner of single cylinder,
As the difference DELTA T=tminWhen, the duplex cylinder compressor out of service.
2. the control method of twin-tub variable capacitance air conditioner according to claim 1, it is characterised in that also wrapped after the step S4
Include：
If S5, continuous first scheduled time detect heat exchanger coil temperature IPT≤t of indoor unitf, the duplex cylinder compressor
Then run in a manner of single cylinder, and force outdoor fan and the indoor fan operation of twin-tub variable capacitance air conditioner, tfIt is to enter protection
Temperature spot, the tfValue range be 1 ~ 2 DEG C.
3. the control method of twin-tub variable capacitance air conditioner according to claim 2, it is characterised in that also wrapped after the step S5
Include：
If S6, continuous second scheduled time detect heat exchanger coil temperature IPT >=t of indoor unitf, then twin-tub out of service
Compressor, and force outdoor fan and the indoor fan operation of twin-tub variable capacitance air conditioner, tfIt is to enter protection temperature spot, it is described
tfValue range be 1 ~ 2 DEG C.
4. the control method of twin-tub variable capacitance air conditioner according to claim 3, it is characterised in that also wrapped after the step S6
Include：
S7, after first scheduled time of duplex cylinder compressor out of service, if detecting the heat exchanger coil temperature IPT of indoor unit
≥tk, then outdoor fan and duplex cylinder compressor are started, and indoor fan recovers to the ortho states before step S5, tkIt is to exit temperature
Point, the tkValue range be 4 ~ 5 DEG C.
5. a kind of control method of twin-tub variable capacitance air conditioner, it is characterised in that including step：
N1, duplex cylinder compressor are started, and are run in a manner of twin-tub；
N2, when twin-tub variable capacitance air conditioner run heat when, monitoring indoor unit it is compensated after return air temperature CRT variation tendency,
And calculate the difference DELTA M of CRT and design temperature ST；
If N3, it is compensated after return air temperature CRT be in temperature rising process, as the difference DELTA M=a1When, stop fortune
Row duplex cylinder compressor,
As the difference DELTA M=a2When, the duplex cylinder compressor is run in a manner of single cylinder,
As the difference DELTA M=anWhen, the duplex cylinder compressor is run in a manner of twin-tub；
The a1Value range be 0 ~ 34 DEG C, a2Value range be -2 ~ 0 DEG C, anValue range be -34 ~ -2
℃；
If N4, it is compensated after return air temperature CRT be in temperature decline process, as the difference DELTA M=a1When, stop fortune
Row duplex cylinder compressor,
As the difference DELTA M=a2When, the duplex cylinder compressor is then run in a manner of single cylinder,
As the difference DELTA M=anWhen+1, the duplex cylinder compressor is then run in a manner of twin-tub.
6. the control method of twin-tub variable capacitance air conditioner according to claim 5, it is characterised in that also wrapped after the step N4
Include：
If N5, the heat exchanger coil temperature IPT >=a for detecting indoor unitg, the duplex cylinder compressor then runs in a manner of single cylinder,
agValue range be 52 ~ 54 DEG C.
7. the control method of twin-tub variable capacitance air conditioner according to claim 6, it is characterised in that also wrapped after the step N5
Include：
If N6, the heat exchanger coil temperature IPT >=a for detecting indoor unitz, then close twin-tub variable capacitance air conditioner outdoor fan,
azValue range be 55 ~ 57 DEG C.
8. the control method of twin-tub variable capacitance air conditioner according to claim 7, it is characterised in that also wrapped after the step N6
Include：
If N7, the heat exchanger coil temperature IPT >=a for detecting indoor unitmax, then duplex cylinder compressor out of service, and forcing double
The indoor fan operation of cylinder variable capacitance air conditioner, amaxValue range be 65 ~ 68 DEG C.
9. the control method of twin-tub variable capacitance air conditioner according to claim 8, it is characterised in that also wrapped after the step N7
Include：
If N8, the heat exchanger coil temperature IPT≤a for detecting indoor unitc, then open twin-tub variable capacitance air conditioner outdoor fan
And duplex cylinder compressor, and make the ortho states before the indoor fan recovering step N5 of twin-tub variable capacitance air conditioner, acValue range for 47 ~
49℃。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017185514A1 (en) * | 2016-04-29 | 2017-11-02 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner, cooling-only air conditioner, and control method for air conditioner |
| CN106595116A (en) * | 2016-12-23 | 2017-04-26 | Tcl空调器(中山)有限公司 | Air conditioner and control method thereof |
| CN106989479B (en) * | 2017-03-09 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner and control method and device of double-cylinder compressor thereof |
| CN109185094B (en) * | 2018-08-17 | 2019-07-23 | 珠海格力电器股份有限公司 | A kind of method, apparatus and unit, air-conditioning system of control compression machine-cut cylinder |
| CN109210696B (en) * | 2018-09-10 | 2020-11-03 | 青岛海尔空调器有限总公司 | Control method for anti-freezing protection of air conditioner |
| CN111397167B (en) * | 2020-03-23 | 2021-11-05 | 广东海悟科技有限公司 | Double-frequency conversion system, control method of frequency conversion compressor of double-frequency conversion system and storage medium |
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| JP2011069555A (en) * | 2009-09-25 | 2011-04-07 | Toshiba Carrier Corp | Air conditioner |
| CN102331072A (en) * | 2011-09-20 | 2012-01-25 | 广东美的电器股份有限公司 | Energy-saving control method for air conditioner with double-mode double-rotor variable frequency compressor |
| CN104101060A (en) * | 2014-07-25 | 2014-10-15 | 浙江新昌三瑞香雪冲业有限公司 | Energy-saving control method for air conditioner |
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