CN105180372A - Method and device for controlling air conditioner - Google Patents
Method and device for controlling air conditioner Download PDFInfo
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- CN105180372A CN105180372A CN201510641593.4A CN201510641593A CN105180372A CN 105180372 A CN105180372 A CN 105180372A CN 201510641593 A CN201510641593 A CN 201510641593A CN 105180372 A CN105180372 A CN 105180372A
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims description 38
- 238000005057 refrigeration Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 description 54
- 239000003507 refrigerant Substances 0.000 description 34
- 238000005265 energy consumption Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000009191 jumping Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The invention discloses a method for controlling an air conditioner. The method comprises the process that in the running process of the air conditioner, the return air temperature of running indoor units is regularly detected; when it is detected that the temperature difference between the return air temperature of certain indoor units and target temperature is larger than or equal to a preset temperature difference, and a compressor is in single-cylinder running, the compressor is switched to be in dual-cylinder running; and when it is continuously detected that the temperature difference between the return air temperature of all the running indoor units and the target temperature is small than the a preset temperature difference within preset duration, and the compressor is in dual-cylinder running, the compressor is switched to be in single-cylinder running. The invention further provides a device for controlling the air conditioner. Power consumption of the air conditioner is reduced.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to a kind of air-conditioner control method and device.
Background technology
Existing air-conditioner operationally, by judging that the temperature difference between room temperature and design temperature controls the work of air-conditioner, the refrigerant of HTHP is discharged to condensation heat release in condenser by compressor, high-pressure liquid refrigerant is heat absorption evaporation in evaporimeter after the throttling of throttle part, then the gaseous coolant of low-temp low-pressure is got back in compressor and is carried out next one circulation, in this process, the discharge capacity of compressor cannot regulate, directly compressor is cut off when environment temperature reaches design temperature, when environment temperature opens compressor higher than during design temperature, due in compressor period out of service, output of not freezing maintains the temperature in room, especially when an off-premises station has multiple indoor set, air-conditioner is by frequent start-stop, cause the power dissipation ratio of air-conditioner larger.
Summary of the invention
The invention provides a kind of air-conditioner control method and device, its main purpose is the power consumption reducing air-conditioner.
For achieving the above object, the invention provides a kind of air-conditioner control method, multiple indoor sets that described air-conditioner comprises off-premises station and is connected with described off-premises station, this air-conditioner control method comprises:
In the running of air-conditioner, timing detects the return air temperature of the described indoor set run;
Temperature difference between the return air temperature described indoor set being detected and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switches to twin-tub to run on described compressor;
It is poor that temperature difference between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature is all less than described preset temperature, and described compressor is twin-tub when running, and switches to single cylinder to run on described compressor.
Preferably, described air-conditioner control method also comprises:
Whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs;
When described compressor is single cylinder operation, after new described indoor set is opened, twin-tub is switched to run on described compressor.
Preferably, described air-conditioner control method also comprises:
Timing detects the delivery temperature of described compressor;
When detecting that the delivery temperature of described compressor is less than the first preset temperature, judge whether the indoor set of described air-conditioner is all opened;
When described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
Preferably, after described timing detects the step of the delivery temperature of described compressor, described air-conditioner control method also comprises:
Whether when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, detecting described compressor is that twin-tub runs;
When described compressor is twin-tub operation, single cylinder is switched to run on described compressor;
When described compressor is single cylinder operation, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
Preferably, described air-conditioner control method also comprises:
If the operational mode of air-conditioner is heating mode, timing detects the heat exchange temperature of the described indoor set opened;
When detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed;
When detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
In addition, for achieving the above object, the present invention also provides a kind of air conditioner controlling device, multiple indoor sets that described air-conditioner comprises off-premises station and is connected with described off-premises station, and this air conditioner controlling device comprises:
Temperature detecting module, in the running of air-conditioner, timing detects the return air temperature of the described indoor set run;
For working as, compressor control module, detects that the temperature difference between the return air temperature of described indoor set and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switch to twin-tub to run on described compressor;
Described compressor control module, also all be less than described preset temperature for the temperature difference worked as between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature poor, and described compressor be twin-tub run time, switch to single cylinder to run on described compressor.
Preferably, described air-conditioner supervising device also comprises:
State detection module, whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs;
Described compressor control module, time also for being single cylinder operation when described compressor, after new described indoor set is opened, switches to twin-tub to run on described compressor.
Preferably, described temperature detecting module, also detects the delivery temperature of described compressor for timing;
Described state detection module, also for when detecting that the delivery temperature of described compressor is less than the first preset temperature, judges whether the indoor set of described air-conditioner is all opened;
Described air conditioner controlling device also comprises:
Stop valve control module, for when described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
Preferably, described state detection module, whether also for when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, detecting described compressor is that twin-tub runs;
Described compressor control module, time also for being twin-tub operation when described compressor, switches to single cylinder to run on described compressor;
Described stop valve control module, time also for being single cylinder operation when described compressor, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
Preferably, described temperature detecting module, if be also heating mode for the operational mode of air-conditioner, timing detects the heat exchange temperature of the multiple described indoor set opened;
Described air conditioner controlling device also comprises:
Indoor set control module, for when detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed;
Described indoor set control module, also for when detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
The air-conditioner control method that the present invention proposes and device, multiple indoor sets that this air-conditioner comprises off-premises station and is connected with off-premises station, in the running of air-conditioner, timing detects the return air temperature of multiple indoor set, according to the temperature difference between indoor set return air temperature and target temperature, control compressor and switch, to maintain return air temperature in suitable scope between twin-tub runs and single cylinder runs, avoid the whole compressor of stop and start repeatedly, reduce the energy consumption of air-conditioner.
Accompanying drawing explanation
Fig. 1 is the flow chart of air-conditioner control method first embodiment of the present invention;
Fig. 2 is the structural representation of air-conditioner in air-conditioner control method of the present invention;
Fig. 3 is the flow chart of air-conditioner control method second embodiment of the present invention;
Fig. 4 is the flow chart of air-conditioner control method of the present invention 3rd embodiment;
Fig. 5 is the flow chart of air-conditioner control method of the present invention 4th embodiment;
Fig. 6 is the high-level schematic functional block diagram of air conditioner controlling device first embodiment of the present invention;
Fig. 7 is the high-level schematic functional block diagram of air conditioner controlling device second embodiment of the present invention;
Fig. 8 is the high-level schematic functional block diagram of air conditioner controlling device of the present invention 3rd embodiment;
Fig. 9 is the high-level schematic functional block diagram of air conditioner controlling device of the present invention 4th embodiment.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of air-conditioner control method.
With reference to shown in Fig. 1, it is the flow chart of air-conditioner control method first embodiment of the present invention.
In a first embodiment, this air-conditioner control method comprises:
Step S10, in the running of air-conditioner, timing detects the return air temperature of the described indoor set run.
The present invention is applied to the situation that an air-conditioner outdoor unit is connected with multiple stage indoor set, and the present embodiment is described there to be two off-premises stations, in other embodiments, can have the indoor set of more than three or three.With reference to shown in Fig. 2, air-conditioner comprises compressor 01, high pressure control valve 02, low-pressure control valve 03, indoor set 04 and No. two indoor sets 05, and wherein, compressor 01 is duplex cylinder compressor, and high pressure control valve 02 and low-pressure control valve 03 are magnetic valve.
The present embodiment can be applied to air-conditioner refrigeration mode and heating mode, in the running of air-conditioner, regularly detects the return air temperature of the indoor set run.
Step S20, the temperature difference between the return air temperature described indoor set being detected and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switches to twin-tub to run on described compressor.
It should be noted that, herein about the temperature difference between return air temperature and target temperature, in cooling mode, this temperature difference is the difference that return air temperature deducts target temperature and obtains, in a heating mode, this temperature difference is the difference that target temperature deducts return air temperature and obtains, in the present embodiment, this preset temperature difference gets 3-5 DEG C, in other embodiments, preset temperature difference can be other values, or is arranged in advance by user, wherein, target temperature refers to the temperature that user is arranged.
When the difference of return air temperature and target temperature that one or more indoor set detected is more than or equal to preset temperature difference, and current compressor 01 for single cylinder run time, control high pressure control valve 02 is opened, low-pressure control valve 03 is closed, the adhesive of compressor 01 subsidiary cylinder, two cylinder bodies run simultaneously, and namely compressor 01 switches to twin-tub to run, and now compressor 01 discharge capacity reaches maximum, refrigerating capacity/heating capacity reaches maximum, can make indoor fast cooling/intensification.
Step S30, it is poor that temperature difference between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature is all less than described preset temperature, and described compressor be twin-tub run time, switch to single cylinder to run on described compressor.
When the return air temperature of all indoor sets and the temperature difference of target temperature that are consecutively detected operation in preset duration are all less than preset temperature difference, if judge now compressor 01 as twin-tub run, control high pressure control valve 02 to close, low-pressure control valve 03 opens to switch to single cylinder to run on compressor 01, now, compressor 01 only has master cylinder to run, to maintain the return air temperature of indoor set, reduce the energy consumption of compressor 01, according to the warm extent between the return air temperature of indoor set opened and target temperature, control compressor 01 to switch between twin-tub runs and single cylinder runs, to maintain the return air temperature of indoor set in suitable scope, avoid the whole compressor of stop and start repeatedly, reduce the energy consumption of air-conditioner.Simultaneously, for ensureing indoor environment temperature, when only having the temperature difference between the return air temperature of the indoor set of current all unlatchings and target temperature to be all less than described preset temperature difference, just described compressor can be switched to single cylinder running status, to ensure that all indoor sets all normally run.
The air-conditioner control method that the present embodiment proposes, in the running of air-conditioner, timing detects the return air temperature of multiple indoor set, according to the temperature difference between indoor set return air temperature and target temperature, control compressor to switch between twin-tub runs and single cylinder runs, to maintain return air temperature in suitable scope, avoid the whole compressor of stop and start repeatedly, reduce the energy consumption of air-conditioner.
With reference to shown in Fig. 3, the first embodiment based on invention air-conditioner control method proposes the second embodiment of air-conditioner control method of the present invention.In the present embodiment, the difference of described method and the first embodiment is, this air-conditioner control method also comprises:
Step S40, whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs.
Step S50, when described compressor is single cylinder operation, after new described indoor set is opened, switches to twin-tub to run on described compressor.
In the running of air-conditioner, when detecting that new indoor set is opened, whether be single cylinder run, if single cylinder runs, then, after new described indoor set is opened, switched to twin-tub to run if detecting compressor.Such as, during current air-conditioner runs, an indoor set is in opening, now, detects that No. two indoor sets are opened, then whether air-conditioner detects compressor is that single cylinder runs, if single cylinder runs, is then switched to twin-tub to run.
It should be noted that, if user is when opening air-conditioner, when just opening multiple indoor set, then, after controlling compressor single cylinder operation preset duration, switching to twin-tub to run.Because the indoor set opened is more, now carries out twin-tub operation, can fast indoor environment temperature be lowered/go up.Arrange herein preset duration be because, if directly start twin-tub to run, system pressure difference and staring torque excessive, cause normally directly starting twin-tub to run, therefore after first starting master cylinder operation preset duration, preset duration is preferably 2-3 minute, now opens secondary cylinder again, only needs less staring torque namely can normally switch to twin-tub to run.Therefore, in order to protect compressor, after first controlling compressor single cylinder operation preset duration, switching to twin-tub to run, compressor can not be started in the direct pattern run with twin-tub.
The air-conditioner control method that the present embodiment proposes, detect new have indoor set to open time, switch to twin-tub to run on the compressor of single cylinder operation, enable indoor environment temperature Rapid Variable Design to reach target temperature.
With reference to shown in Fig. 4, the first embodiment based on invention air-conditioner control method proposes the 3rd embodiment of air-conditioner control method of the present invention.In the present embodiment, the difference of described method and the first embodiment is, this air-conditioner control method also comprises step:
Step S60, timing detects the delivery temperature of described compressor.
Step S70, when detecting that the delivery temperature of described compressor is less than the first preset temperature, judges whether the indoor set of described air-conditioner is all opened.
Step S80, when described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
In the present embodiment, timing detects the delivery temperature of compressor, wherein, first preset temperature preferably 110 DEG C, in other embodiments, other temperature can be set in advance by user, when the delivery temperature of compressor is less than the first preset temperature, illustrate that compressor caloric value is now little, delivery temperature is lower, operate in safe temperature range.Now, whether the indoor set detecting air-conditioner is all opened, if all do not opened, then the indoor set controlling not open reclaims unnecessary refrigerant.According to the running status of air-conditioner, regulate different valves to realize the recovery of refrigerant, if the operational mode of air-conditioner is refrigeration mode, then open high-pressure stop valve 06, if the operational mode of air-conditioner is heating mode, then open low-pressure shutoff valve 07.With reference to shown in Fig. 2, with the operational mode of air-conditioner for refrigeration mode, opening an indoor set is example, now, can control to close after high-pressure stop valve 06 corresponding to No. two indoor sets opens prefixed time interval, refrigerant unnecessary in No. two indoor set storage systems of not opening within this time interval, to reclaim refrigerant.Owing to being the delivery temperature that timing detects compressor, after a certain time, such as 5 minutes, refrigerant recovering is made to have a reasonably amount, again detect the delivery temperature of compressor, when the delivery temperature of compressor is still less than the first preset temperature, continue to perform step S80.And high-pressure stop valve 06 is closed after opening prefixed time interval, preferably 10-15 second in this time interval, set interval is in order to avoid the refrigerant of storing excess in No. two indoor sets do not opened herein, cause refrigerant in system less, and affect refrigeration, therefore, high-pressure stop valve 06 carries out the unlatching of short time.Be understandable that, when indoor set is not opened, high-pressure stop valve and the low-pressure shutoff valve of its correspondence are closed condition.And when the operational mode of air-conditioner is heating mode, unlatching be low-pressure shutoff valve 07, its process and the same said process of principle, do not repeat them here.
Further, after step S80, this air-conditioner control method also comprises:
When detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, judge whether described compressor is that twin-tub runs;
When described compressor is twin-tub operation, single cylinder is switched to run on described compressor;
When described compressor is single cylinder operation, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
When the delivery temperature of compressor is more than or equal to the first preset temperature, illustrate that compressor caloric value is now larger, delivery temperature is higher, due to compressor exhaust temperature too high time can affect its running status, now, first detect compressor be twin-tub run, if twin-tub runs, single cylinder can be switched to run, to reduce load and the caloric value of compressor, to reduce delivery temperature.
Be understandable that; when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature; compressor is that twin-tub runs; now; also the temperature difference detected between the return air temperature of indoor set and target temperature is more than or equal to preset temperature difference, the object due to the present embodiment be load in order to reduce compressor to protect compressor, the stop jumping to avoid compressor exhaust temperature too high; therefore priority protection compressor, switches to single cylinder to run on compressor.And can further, time interval timing being detected indoor set return air temperature is set to the different time intervals, to reduce the possibility occurring above-mentioned situation from the time interval that timing detects compressor exhaust temperature.
Run if compressor is single cylinder, the refrigerant stored can be played back in system, to reduce the delivery temperature of compressor in do not open No. two indoor sets again.According to the running status of air-conditioner, regulate different valves to realize the release of refrigerant, if the operational mode of air-conditioner is refrigeration mode, then open low-pressure shutoff valve 07, if the operational mode of air-conditioner is heating mode, then open high-pressure stop valve 06.With the operational mode of air-conditioner for refrigeration mode, opening an indoor set is example, control to close after the low-pressure shutoff valve 07 of No. two indoor sets opens prefixed time interval, set interval is cause waste in order to avoid there being too much refrigerant to flow into system herein, therefore the refrigerant that a release part gradually stores is carried out, to reduce the delivery temperature of compressor, make compressor operating within the temperature range of safety.Owing to being the delivery temperature that timing detects compressor, after a certain time, such as 5 minutes, refrigerant is discharged a reasonably amount, again detect the delivery temperature of compressor, when the delivery temperature of compressor is still more than or equal to the first preset temperature, perform the step of closing after low-pressure shutoff valve corresponding to the indoor set do not opened described in above-mentioned control opens prefixed time interval.And when the operational mode of air-conditioner is heating mode, unlatching be high-pressure stop valve 06, its process and the same said process of principle, do not repeat them here.
The air-conditioner control method that the present embodiment proposes, when the delivery temperature of the operation of part indoor set, compressor is lower, by unnecessary refrigerant is recovered in the indoor set do not opened from system, the refrigerant circulated can be reduced, reduce the power consumption of compressor in system; When the temperature degree of the operation of part indoor set, bank of compressors is higher, is discharged in the indoor set that refrigerant is never opened in system, reduces the delivery temperature of compressor, prevent compressor from causing stop jumping because delivery temperature is too high.
With reference to shown in Fig. 5, the 4th embodiment of air-conditioner control method of the present invention is proposed based on any embodiment in above-mentioned three embodiments of invention air-conditioner control method.In the present embodiment, the difference of described method and above-described embodiment is, this air-conditioner control method also comprises:
Step S90, if the operational mode of air-conditioner is heating mode, timing detects the heat exchange temperature of the described indoor set opened.
The present embodiment controls at the wind deflector, fan etc. of the indoor set to the air-conditioner run in a heating mode, obtains comfortable indoor environment to make user.It should be noted that, the quantity that the present embodiment runs for indoor set is not restricted, and only can run part indoor set, also can run whole indoor set.
Step S100, when detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed.
Step S110, when detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
Under heating mode, timing detects the heat exchange temperature of the indoor set opened, when air-conditioner is out of service, the indoor heat exchanger temperature of indoor set is identical with indoor environment temperature, after air-conditioner brings into operation, this temperature can rise slowly, finally higher than the target temperature of indoor, and when air-conditioner just starts, this temperature is lower, when it is lower than the second preset temperature, now, the air temperature gone out from wind deflector is lower, in order to wind of being Protected from Cold is to user, wind deflector is adjusted to predetermined angle, this angle can be the angle that user is arranged, prevent cold wind from blowing to user, simultaneously, control indoor set and be less than or equal to the operation of default wind speed, wherein, second preset temperature can be arranged by user.
Further, when the temperature of indoor heat exchanger raises gradually, during higher than the second preset temperature, the air temperature gone out from wind deflector is higher, also can not be uncomfortable even if blow to, the operations such as the pattern that the wind deflector, fan etc. that control indoor set are arranged according to user and wind speed.
The method that the present embodiment proposes in a heating mode, controls the mode operation according to correspondence such as wind deflector, fan of indoor set, for user provides comfortable Interior Temperature Environment by the change of the temperature of indoor heat exchanger.
The present invention also proposes a kind of air conditioner controlling device.
With reference to shown in Fig. 6, it is the high-level schematic functional block diagram of air conditioner controlling device first embodiment of the present invention.
In this embodiment, this air conditioner controlling device comprises:
Temperature detecting module 10, in the running of air-conditioner, timing detects the return air temperature of the described indoor set run.
The present invention is applied to the situation that an air-conditioner outdoor unit is connected with multiple stage indoor set, and the present embodiment is described there to be two off-premises stations, in other embodiments, can have the indoor set of more than three or three.With reference to shown in Fig. 2, air-conditioner comprises compressor 01, high pressure control valve 02, low-pressure control valve 03, indoor set 04 and No. two indoor sets 05, and wherein, compressor 01 is duplex cylinder compressor, and high pressure control valve 02 and low-pressure control valve 03 are magnetic valve.
The present embodiment can be applied to air-conditioner refrigeration mode and heating mode, and in the running of air-conditioner, temperature detecting module 10 regularly detects the return air temperature of the indoor set run.
For working as, compressor control module 20, detects that the temperature difference between the return air temperature of described indoor set and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switch to twin-tub to run on described compressor.
It should be noted that, herein about the temperature difference between return air temperature and target temperature, in cooling mode, this temperature difference is the difference that return air temperature deducts target temperature and obtains, in a heating mode, this temperature difference is the difference that target temperature deducts return air temperature and obtains, in the present embodiment, this preset temperature difference gets 3-5 DEG C, in other embodiments, preset temperature difference can be other values, or is arranged in advance by user, wherein, target temperature refers to the temperature that user is arranged.
When the difference of return air temperature and target temperature that one or more indoor set detected is more than or equal to preset temperature difference, and current compressor 01 for single cylinder run time, compressor control module 20 controls that high pressure control valve 02 is opened, low-pressure control valve 03 is closed, the adhesive of compressor 01 subsidiary cylinder, two cylinder bodies run simultaneously, and namely compressor 01 switches to twin-tub to run, and now compressor 01 discharge capacity reaches maximum, refrigerating capacity/heating capacity reaches maximum, can make indoor fast cooling/intensification.
Compressor control module 20, also all be less than described preset temperature for the temperature difference worked as between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature poor, and described compressor be twin-tub run time, switch to single cylinder to run on described compressor.
When the return air temperature of all indoor sets and the temperature difference of target temperature that are consecutively detected operation in preset duration are all less than preset temperature difference, if judge now compressor 01 as twin-tub run, compressor control module 20 controls high pressure control valve 02 and closes, low-pressure control valve 03 opens to switch to single cylinder to run on compressor 01, now, compressor 01 only has master cylinder to run, to maintain the return air temperature of indoor set, reduce the energy consumption of compressor 01, according to the warm extent between the return air temperature of indoor set opened and target temperature, compressor control module 20 controls compressor 01 and switches between twin-tub runs and single cylinder runs, to maintain the return air temperature of indoor set in suitable scope, avoid the whole compressor of stop and start repeatedly, reduce the energy consumption of air-conditioner.Simultaneously, for ensureing indoor environment temperature, when only having the temperature difference between the return air temperature of the indoor set of current all unlatchings and target temperature to be all less than described preset temperature difference, described compressor just can be switched to single cylinder running status by compressor control module 20, to ensure that all indoor sets all normally run.
The air conditioner controlling device that the present embodiment proposes, in the running of air-conditioner, timing detects the return air temperature of multiple indoor set, according to the temperature difference between indoor set return air temperature and target temperature, control compressor to switch between twin-tub runs and single cylinder runs, to maintain return air temperature in suitable scope, avoid the whole compressor of stop and start repeatedly, reduce the energy consumption of air-conditioner.
With reference to shown in Fig. 7, the first embodiment based on invention air conditioner controlling device proposes the second embodiment of air conditioner controlling device of the present invention.In the present embodiment, the difference of described device and the first embodiment is, this air conditioner controlling device also comprises:
State detection module 30, whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs.
Compressor control module 20, time also for being single cylinder operation when described compressor, after new described indoor set is opened, switches to twin-tub to run on described compressor.
In the running of air-conditioner, when detecting that new indoor set is opened, whether state detection module 30 detects compressor is that single cylinder runs, if single cylinder runs, after new described indoor set is opened, then compressor control module 20 is switched to twin-tub to run.Such as, during current air-conditioner runs, an indoor set is in opening, now, detects that No. two indoor sets are opened, then whether air-conditioner detects compressor is that single cylinder runs, if single cylinder runs, is then switched to twin-tub to run.
It should be noted that, if user is when opening air-conditioner, when just opening multiple indoor set, then, after controlling compressor single cylinder operation preset duration, switching to twin-tub to run.Because the indoor set opened is more, now carries out twin-tub operation, can fast indoor environment temperature be lowered/go up.Arrange herein preset duration be because, if directly start twin-tub to run, system pressure difference and staring torque excessive, cause normally directly starting twin-tub to run, therefore after first starting master cylinder operation preset duration, preset duration is preferably 2-3 minute, now opens secondary cylinder again, only needs less staring torque namely can normally switch to twin-tub to run.Therefore, in order to protect compressor, after first controlling compressor single cylinder operation preset duration, switching to twin-tub to run, compressor can not be started in the direct pattern run with twin-tub.
The air conditioner controlling device that the present embodiment proposes, when detecting that new indoor set is opened, switching to twin-tub to run on the compressor that single cylinder runs, enabling indoor environment temperature Rapid Variable Design to reach target temperature.
With reference to shown in Fig. 8, the first embodiment based on invention air conditioner controlling device proposes the 3rd embodiment of air conditioner controlling device of the present invention.In the present embodiment, the difference of described device and the first embodiment is:
Temperature detecting module 10, also detects the delivery temperature of described compressor for timing.
State detection module 30, also for when detecting that the delivery temperature of described compressor is less than the first preset temperature, judges whether the indoor set of described air-conditioner is all opened.
This air conditioner controlling device also comprises:
Stop valve control module 40, for when described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
In the present embodiment, temperature detecting module 10 timing detects the delivery temperature of compressor, wherein, first preset temperature preferably 110 DEG C, in other embodiments, other temperature can be set in advance by user, when the delivery temperature of compressor is less than the first preset temperature, illustrate that compressor caloric value is now little, delivery temperature is lower, operate in safe temperature range.Now, whether the indoor set that state detection module 30 detects air-conditioner is all opened, if all do not opened, then the indoor set that stop valve control module 40 controls not open reclaims unnecessary refrigerant.According to the running status of air-conditioner, different valves is regulated to realize the recovery of refrigerant, if the operational mode of air-conditioner is refrigeration mode, then stop valve control module 40 controls high-pressure stop valve 06 and opens, if the operational mode of air-conditioner is heating mode, then stop valve control module 40 controls low-pressure shutoff valve 07 and opens.With reference to shown in Fig. 2, with the operational mode of air-conditioner for refrigeration mode, opening an indoor set is example, now, stop valve control module 40 can control to close after high-pressure stop valve 06 corresponding to No. two indoor sets opens prefixed time interval, refrigerant unnecessary in No. two indoor set storage systems of not opening within this time interval, to reclaim refrigerant.Owing to being the delivery temperature that timing detects compressor, after a certain time, such as 5 minutes, refrigerant recovering is made to have a reasonably amount, again detect the delivery temperature of compressor, when the delivery temperature of compressor is still less than the first preset temperature, stop valve control module 40 carries out the release of refrigerant by the switch controlling high-pressure stop valve 06.And high-pressure stop valve 06 is closed after opening prefixed time interval, preferably 10-15 second in this time interval, set interval is in order to avoid the refrigerant of storing excess in No. two indoor sets do not opened herein, cause refrigerant in system less, and affect refrigeration, therefore, high-pressure stop valve 06 carries out the unlatching of short time.Be understandable that, when indoor set is not opened, high-pressure stop valve and the low-pressure shutoff valve of its correspondence are closed condition.And when the operational mode of air-conditioner is heating mode, what stop valve control module 40 was opened is low-pressure shutoff valve 07, its process and the same said process of principle, do not repeat them here.
Further, state detection module 30, also for when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, judges whether described compressor is that twin-tub runs;
Compressor control module 20, time also for being twin-tub operation when described compressor, switches to single cylinder to run on described compressor;
Stop valve control module 40, time also for being single cylinder operation when described compressor, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
When the delivery temperature of compressor is more than or equal to the first preset temperature, illustrate that compressor caloric value is now larger, delivery temperature is higher, due to compressor exhaust temperature too high time can affect its running status, now, state detection module 30 first detect compressor be twin-tub run, if twin-tub runs, compressor control module 20 can be switched to single cylinder to run, to reduce load and the caloric value of compressor, to reduce delivery temperature.
Be understandable that; when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature; compressor is that twin-tub runs; now; also the temperature difference detected between the return air temperature of indoor set and target temperature is more than or equal to preset temperature difference, the object due to the present embodiment be load in order to reduce compressor to protect compressor, the stop jumping to avoid compressor exhaust temperature too high; therefore priority protection compressor, switches to single cylinder to run on compressor.And can further, time interval timing being detected indoor set return air temperature is set to the different time intervals, to reduce the possibility occurring above-mentioned situation from the time interval that timing detects compressor exhaust temperature.
Run if compressor is single cylinder, the refrigerant stored can be played back in system, to reduce the delivery temperature of compressor in do not open No. two indoor sets again.According to the running status of air-conditioner, regulate different valves to realize the release of refrigerant, if the operational mode of air-conditioner is refrigeration mode, then open low-pressure shutoff valve 07, if the operational mode of air-conditioner is heating mode, then open high-pressure stop valve 06.With the operational mode of air-conditioner for refrigeration mode, opening an indoor set is example, close after the low-pressure shutoff valve 07 that compressor control module 20 controls No. two indoor sets opens prefixed time interval, set interval is cause waste in order to avoid there being too much refrigerant to flow into system herein, therefore the refrigerant that a release part gradually stores is carried out, to reduce the delivery temperature of compressor, make compressor operating within the temperature range of safety.Owing to being the delivery temperature that timing detects compressor, after a certain time, such as 5 minutes, refrigerant is discharged a reasonably amount, temperature detecting module 10 detects the delivery temperature of compressor again, when the delivery temperature of compressor is still more than or equal to the first preset temperature, stop valve control module 40 carries out the recovery of refrigerant by the switch controlling low-pressure shutoff valve 07.And when the operational mode of air-conditioner is heating mode, stop valve control module 40 controls high-pressure stop valve 06 and opens, its process and the same said process of principle, do not repeat them here.
The air conditioner controlling device that the present embodiment proposes, when the delivery temperature of the operation of part indoor set, compressor is lower, by unnecessary refrigerant is recovered in the indoor set do not opened from system, the refrigerant circulated can be reduced, reduce the power consumption of compressor in system; When the temperature degree of the operation of part indoor set, bank of compressors is higher, is discharged in the indoor set that refrigerant is never opened in system, reduces the delivery temperature of compressor, prevent compressor from causing stop jumping because delivery temperature is too high.
With reference to shown in Fig. 9, the 4th embodiment of air conditioner controlling device of the present invention is proposed based on any embodiment in above-mentioned three embodiments of invention air conditioner controlling device.In the present embodiment, the difference of described device and above-described embodiment is:
Temperature detecting module 10, if be also heating mode for the operational mode of air-conditioner, timing detects the heat exchange temperature of the described indoor set opened.
The present embodiment controls at the wind deflector, fan etc. of the indoor set to the air-conditioner run in a heating mode, obtains comfortable indoor environment to make user.It should be noted that, the quantity that the present embodiment runs for indoor set is not restricted, and only can run part indoor set, also can run whole indoor set.
This air conditioner controlling device also comprises:
Indoor set control module 50, for when detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed.
Indoor set control module 50, also for when detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
Under heating mode, temperature detecting module 10 timing detects the heat exchange temperature of the indoor set opened, when air-conditioner is out of service, the indoor heat exchanger temperature of indoor set is identical with indoor environment temperature, after air-conditioner brings into operation, this temperature can rise slowly, finally higher than the target temperature of indoor, and when air-conditioner just starts, this temperature is lower, when it is lower than the second preset temperature, now, the air temperature gone out from wind deflector is lower, in order to wind of being Protected from Cold is to user, wind deflector is adjusted to predetermined angle by indoor set control module 50, this angle can be the angle that user is arranged, prevent cold wind from blowing to user, simultaneously, control indoor set and be less than or equal to the operation of default wind speed, wherein, second preset temperature can be arranged by user.
Further, when the temperature of indoor heat exchanger raises gradually, during higher than the second preset temperature, the air temperature gone out from wind deflector is higher, also can not be uncomfortable even if blow to, the operations such as the pattern that wind deflector, fan etc. that indoor set control module 50 controls indoor set are arranged according to user and wind speed.
The device that the present embodiment proposes in a heating mode, controls the mode operation according to correspondence such as wind deflector, fan of indoor set, for user provides comfortable Interior Temperature Environment by the change of the temperature of indoor heat exchanger.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an air-conditioner control method, is characterized in that, multiple indoor sets that described air-conditioner comprises off-premises station and is connected with described off-premises station, and described air-conditioner control method comprises:
In the running of air-conditioner, timing detects the return air temperature of the described indoor set run;
Temperature difference between the return air temperature described indoor set being detected and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switches to twin-tub to run on described compressor;
It is poor that temperature difference between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature is all less than described preset temperature, and described compressor is twin-tub when running, and switches to single cylinder to run on described compressor.
2. air-conditioner control method according to claim 1, is characterized in that, described air-conditioner control method also comprises:
Whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs;
When described compressor is single cylinder operation, after new described indoor set is opened, twin-tub is switched to run on described compressor.
3. air-conditioner control method according to claim 1, is characterized in that, described air-conditioner control method also comprises:
Timing detects the delivery temperature of described compressor;
When detecting that the delivery temperature of described compressor is less than the first preset temperature, judge whether the indoor set of described air-conditioner is all opened;
When described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
4. air-conditioner control method according to claim 3, is characterized in that, after described timing detects the step of the delivery temperature of described compressor, described air-conditioner control method also comprises:
Whether when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, detecting described compressor is that twin-tub runs;
When described compressor is twin-tub operation, single cylinder is switched to run on described compressor;
When described compressor is single cylinder operation, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
5. the air-conditioner control method according to any one of claim 1-4, is characterized in that, described air-conditioner control method also comprises:
If the operational mode of air-conditioner is heating mode, timing detects the heat exchange temperature of the described indoor set opened;
When detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed;
When detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
6. an air conditioner controlling device, is characterized in that, multiple indoor sets that described air-conditioner comprises off-premises station and is connected with described off-premises station, and described air conditioner controlling device comprises:
Temperature detecting module, in the running of air-conditioner, timing detects the return air temperature of the described indoor set run;
For working as, compressor control module, detects that the temperature difference between the return air temperature of described indoor set and target temperature is more than or equal to preset temperature difference, and when described compressor is single cylinder operation, switch to twin-tub to run on described compressor;
Described compressor control module, also all be less than described preset temperature for the temperature difference worked as between the described return air temperature of all described indoor set being consecutively detected operation in preset duration and described target temperature poor, and described compressor be twin-tub run time, switch to single cylinder to run on described compressor.
7. air conditioner controlling device according to claim 6, is characterized in that, described air-conditioner supervising device also comprises:
State detection module, whether in the running of air-conditioner, when detecting that new described indoor set is opened, detecting described compressor is that single cylinder runs;
Described compressor control module, time also for being single cylinder operation when described compressor, after new described indoor set is opened, switches to twin-tub to run on described compressor.
8. air conditioner controlling device according to claim 6, is characterized in that, described temperature detecting module, also detects the delivery temperature of described compressor for timing;
Described state detection module, also for when detecting that the delivery temperature of described compressor is less than the first preset temperature, judges whether the indoor set of described air-conditioner is all opened;
Described air conditioner controlling device also comprises:
Stop valve control module, for when described indoor set is not all opened, if the operational mode of air-conditioner is refrigeration mode, close after the high-pressure stop valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the low-pressure shutoff valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
9. air conditioner controlling device according to claim 8, is characterized in that, described state detection module, and whether also for when detecting that the delivery temperature of described compressor is more than or equal to the first preset temperature, detecting described compressor is that twin-tub runs;
Described compressor control module, time also for being twin-tub operation when described compressor, switches to single cylinder to run on described compressor;
Described stop valve control module, time also for being single cylinder operation when described compressor, if the operational mode of air-conditioner is refrigeration mode, close after the low-pressure shutoff valve that the described indoor set then controlling not open is corresponding opens prefixed time interval, if the operational mode of air-conditioner is heating mode, then close after the high-pressure stop valve that the described indoor set controlling not open is corresponding opens prefixed time interval.
10. the air conditioner controlling device according to any one of claim 6-9, is characterized in that, described temperature detecting module, if be also heating mode for the operational mode of air-conditioner, timing detects the heat exchange temperature of the multiple described indoor set opened;
Described air conditioner controlling device also comprises:
Indoor set control module, for when detecting that the described heat exchange temperature of described indoor set is less than the second preset temperature, the wind deflector controlling described indoor set goes to predetermined angle, and controls described indoor set to be less than or equal to the operation of default wind speed;
Described indoor set control module, also for when detecting that the described heat exchange temperature of described indoor set is more than or equal to the second preset temperature, controlling described indoor set and running according to set model.
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| CN105627615A (en) * | 2016-03-03 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner system and control method thereof |
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