CN105546752A - Air conditioner control method and device - Google Patents
Air conditioner control method and device Download PDFInfo
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- CN105546752A CN105546752A CN201610008930.0A CN201610008930A CN105546752A CN 105546752 A CN105546752 A CN 105546752A CN 201610008930 A CN201610008930 A CN 201610008930A CN 105546752 A CN105546752 A CN 105546752A
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- air
- compressor
- conditioner
- expansion valve
- environment temperature
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The invention discloses an air conditioner control method. The air conditioner control method comprises the steps that the outdoor environment temperature is obtained when shutdown operation of an air conditioner is carried out; when the outdoor environment temperature is lower than a preset temperature threshold value, a compressor is controlled to operate at a preset frequency, an outdoor unit electronic expansion valve is adjusted to a first preset opening degree, and an indoor unit electronic expansion valve is closed; and the compressor is controlled to stop operating when the pipeline air pressure between the compressor and a gas-liquid separator is lower than a preset air pressure threshold value. The invention further discloses an air conditioner control device. According to the air conditioner control method and device, the liquid carrying starting problem of the compressor can be effectively solved.
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 is when shutting down, and compressor is normally out of service immediately.After compressor shutdown, because lubricating oil in compressor absorbs gaseous refrigerant, make the air pressure in compressor lower than outdoor heat exchanger and ducted air pressure, thus cause being stored in outdoor heat exchanger and ducted gaseous refrigerant enters compressor.And compressor is placed in outdoor usually, when outdoor environment temperature is lower, gaseous refrigerant will be condensed into liquid state within the compressor, therefore, when compressor again starting up time, owing to wherein there is liquid refrigerant, can there is the problem of flooded starts in compressor.
Summary of the invention
Main purpose of the present invention is to provide a kind of air-conditioner control method and device, is intended to solve compressor in existing air-conditioner and there is the technical problem of flooded starts.
For achieving the above object, a kind of air-conditioner control method provided by the invention, described air-conditioner control method comprises the following steps:
When air-conditioner performs power-off operation, obtain outdoor environment temperature;
When described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
When pipeline air pressure between described compressor and gas-liquid separator is less than preset pressure threshold value, control described compressor out of service.
Preferably, described control compressor operates with predeterminated frequency, and off-premises station electric expansion valve is adjusted to first and presets aperture, and before the step that electronic expansion valve of indoor unit is closed, described air-conditioner control method comprises:
When described outdoor environment temperature is less than preset temperature threshold value, detect the operational mode of air-conditioner;
When the operational mode of air-conditioner is heating mode, performs described control compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, the step that electronic expansion valve of indoor unit is closed.
Preferably, described when described outdoor environment temperature is less than preset temperature threshold value, after detecting the step of the operational mode of air-conditioner, described air-conditioner control method also comprises:
When the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed;
When pipeline air pressure between described compressor and gas-liquid separator is less than preset pressure threshold value, control described compressor out of service.
Preferably, after the step of described acquisition outdoor environment temperature, described air-conditioner control method also comprises:
When described outdoor environment temperature is greater than or equal to preset temperature threshold value, control compressor out of service.
Preferably, when receiving shutdown command, perform the step of described acquisition outdoor environment temperature.
In addition, for achieving the above object, the present invention also provides a kind of air conditioner controlling device, and described air conditioner controlling device comprises:
Acquisition module, for when air-conditioner performs power-off operation, obtains outdoor environment temperature;
Processing module, for when described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
Control module, when being less than preset pressure threshold value for the pipeline air pressure between described compressor and gas-liquid separator, controls described compressor out of service.
Preferably, described processing module comprises:
Detecting unit, for when described outdoor environment temperature is less than preset temperature threshold value, detects the operational mode of air-conditioner;
Processing unit, for when the operational mode of air-conditioner is heating mode, controls compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed.
Preferably, described processing unit also for:
When the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed.
Preferably, described processing module also for:
When described outdoor environment temperature is greater than or equal to preset temperature threshold value, control compressor out of service.
Preferably, described acquisition module is used for:
When receiving shutdown command, obtain outdoor environment temperature.
A kind of air-conditioner control method that the present invention proposes and device, in described air-conditioner control method, when air-conditioner performs power-off operation, if outdoor environment temperature is lower than preset temperature threshold value, then compressor not hard stop, but operate with predeterminated frequency, and organic electronic expansion valve is adjusted to first and presets aperture outside control room, with make outdoor heat exchanger and ducted cold-producing medium through compressor laggard enter in indoor heat exchanger, control electronic expansion valve of indoor unit to close simultaneously, make the cold-producing medium in indoor heat exchanger cannot enter in outdoor heat exchanger and pipeline, thus outdoor heat exchanger and ducted cold-producing medium reduce gradually, then pipeline air pressure can reduce gradually.When pipeline air pressure when between compressor and gas-liquid separator is less than preset pressure threshold value, illustrates in outdoor heat exchanger and pipeline substantially there is not cold-producing medium, now control compressor shutdown.Therefore, after compressor shutdown, there is not cold-producing medium in outdoor heat exchanger and pipeline and enter compressor and be condensed into liquid state, avoid compressor again starting up time flooded starts problem.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of air-conditioner control method first embodiment of the present invention;
Fig. 2 is the structural representation of air-conditioner;
Fig. 3 is the schematic flow sheet of air-conditioner control method second embodiment of the present invention;
Fig. 4 is the high-level schematic functional block diagram of air conditioner controlling device first embodiment of the present invention;
Fig. 5 is the refinement high-level schematic functional block diagram of processing module in air conditioner controlling device second embodiment of the present invention.
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, is the schematic flow sheet of air-conditioner control method first embodiment of the present invention with reference to Fig. 1, Fig. 1.
In a first embodiment, this air-conditioner control method comprises:
Step S10, when air-conditioner performs power-off operation, obtains outdoor environment temperature;
In the present embodiment, as shown in Figure 2, air-conditioner comprises: compressor 1, cross valve 2, outdoor heat exchanger 3, off-premises station electric expansion valve 4, electronic expansion valve of indoor unit 5, indoor heat exchanger 6 and gas-liquid separator 7.The exhaust outlet of compressor 1 is connected with the 2a mouth of cross valve 2 by pipeline, the 2b mouth of cross valve 2 is connected by pipeline one end with outdoor heat exchanger 3, the other end of outdoor heat exchanger 3 is connected by pipeline one end with off-premises station electric expansion valve 4, the other end of off-premises station electric expansion valve 4 is connected by pipeline one end with electronic expansion valve of indoor unit 5, the other end of electronic expansion valve of indoor unit 5 is connected by pipeline one end with indoor heat exchanger 6, the other end of indoor heat exchanger 6 is connected with the 2c mouth of cross valve 2 by pipeline, the 2d mouth of cross valve 2 is connected through the gas returning port of gas-liquid separator 7 with compressor 1.Further, in air-conditioner, be previously provided with temperature sensor, can outdoor environment temperature be detected by described temperature sensor.When user does not need using air-condition device, also namely to close air-conditioner, when air-conditioner performs power-off operation, obtain outdoor environment temperature T by described temperature sensor.
Further, when air-conditioner receives shutdown command, obtain outdoor environment temperature T by described temperature sensor.Such as, when user sends shutdown command by remote controller to air-conditioner, air-conditioner, when receiving described shutdown command, obtains outdoor environment temperature T.It will be appreciated by persons skilled in the art that air-conditioner is except can when receiving shutdown command, obtain outdoor environment temperature T, can also obtain described outdoor environment temperature T in other cases, this is not restricted.Such as, when operation of air conditioner duration arrives default operation duration and performs power-off operation, or when the shutdown duration of air-conditioner arrives the shutdown duration preset, obtain described outdoor environment temperature T.
Step S20, when described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
After getting described outdoor environment temperature T, more described outdoor environment temperature T and preset temperature threshold value T
asize.Described preset temperature threshold value T
avalue can arrange flexibly according to actual conditions, in this no limit.If the described outdoor environment temperature T obtained is less than described preset temperature threshold value T
a, then controls compressor 1 and operate with predeterminated frequency F, and outside control room, organic electronic expansion valve 4 is adjusted to the first default aperture B
1, electronic expansion valve of indoor unit 5 is closed.Wherein, described first aperture B is preset
1be chosen as the minimum level aperture of described off-premises station electric expansion valve 4.If the described outdoor environment temperature T obtained is greater than or equal to described preset temperature threshold value T
aalso namely illustrate that current outdoor environment temperature is higher, after compressor 1 is out of service, cold-producing medium enters compressor 1 and can not be condensed, then mix with lubricating oil, also namely there will not be compressor 1 again starting up time flooded starts problem, therefore, be greater than or equal to described preset temperature threshold value T at described outdoor environment temperature T
atime, control compressor 1 directly out of service.
When described compressor 1 operates with predeterminated frequency F, described off-premises station electric expansion valve 4 is adjusted to first and presets aperture B
1, when described electronic expansion valve of indoor unit 5 is closed, the cold-producing medium in indoor heat exchanger 6 and corresponding pipeline cannot enter in outdoor heat exchanger 3 and corresponding pipeline via electronic expansion valve of indoor unit 5; And due to off-premises station electric expansion valve 4 be in opening, cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline can be entered in indoor heat exchanger 6 and corresponding pipeline by compressor 1 compression, thus the cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline is all transferred in indoor heat exchanger 6 and corresponding pipeline gradually.
Step S30, when the pipeline air pressure between described compressor and gas-liquid separator is less than preset pressure threshold value, controls described compressor out of service.
In the present embodiment, the pipeline between described compressor 1 and gas-liquid separator 7 is previously provided with pressure sensor, described pressure sensor is for detecting the pipeline air pressure P between described compressor 1 and described gas-liquid separator 7.Because described compressor 1 operates with predeterminated frequency F, cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline enters in indoor heat exchanger 6 and corresponding pipeline by described compressor 1 compression, therefore, the pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually.Pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value P
0time, also namely illustrate in outdoor heat exchanger 3 and corresponding pipeline and do not existed or there is little cold-producing medium, now, control described compressor 1 out of service, and control described off-premises station electric expansion valve 4 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in outdoor heat exchanger 3 and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, when air-conditioner performs power-off operation, directly do not control air-conditioner shutdown, but first obtain outdoor environment temperature, when outdoor environment temperature is less than preset temperature threshold value, control compressor 1 to operate with predeterminated frequency, off-premises station electric expansion valve 4 is adjusted to first and presets aperture, electronic expansion valve of indoor unit 5 is closed, to make refrigerant migration in outdoor heat exchanger 3 and corresponding pipeline in indoor heat exchanger 6 and corresponding pipeline, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, namely when substantially there is not cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline yet, control compressor 1 out of service.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in outdoor heat exchanger 3 and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus improve the reliability of air-conditioner.
Further, as shown in Figure 3, propose air-conditioner control method second embodiment of the present invention based on the first embodiment, in the present embodiment, before described step S20, also comprise:
Step S40, when described outdoor environment temperature is less than preset temperature threshold value, detects the operational mode of air-conditioner;
Step S50, when the operational mode of air-conditioner is heating mode, controls compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed.
Based on the first embodiment, in the present embodiment, after getting described outdoor environment temperature T, more described outdoor environment temperature T and preset temperature threshold value T
asize.If the described outdoor environment temperature T obtained is less than described preset temperature threshold value T
a, then the operational mode of air-conditioner is detected further.When air-conditioner operates in heating mode, then control compressor 1 with the first predeterminated frequency F
1running, off-premises station electric expansion valve 4 is adjusted to described first and presets aperture B
1, electronic expansion valve of indoor unit 5 is closed.
In a heating mode, when described compressor 1 is with described first predeterminated frequency F
1running, described off-premises station electric expansion valve 4 is adjusted to first and presets aperture B
1, when described electronic expansion valve of indoor unit 5 is closed, be in the outdoor heat exchanger 3 and corresponding pipeline that the cold-producing medium in the indoor heat exchanger 6 of higher-pressure region and corresponding pipeline cannot enter low-pressure area via electronic expansion valve of indoor unit 5; And due to off-premises station electric expansion valve 4 be in opening, cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline can be compressed in the indoor heat exchanger 6 and corresponding pipeline entering higher-pressure region by compressor 1, thus in the indoor heat exchanger 6 making the cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline all be transferred to higher-pressure region gradually and corresponding pipeline.Pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually.Pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value P
0time, also namely illustrate in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline and do not existed or there is little cold-producing medium, now, control described compressor 1 out of service, and controlling described off-premises station electric expansion valve 4 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, when outdoor environment temperature is less than preset temperature threshold value, if detect air-conditioner to operate in heating mode, then controls compressor 1 with the first predeterminated frequency F
1running, off-premises station electric expansion valve 4 is adjusted to described first and presets aperture B
1electronic expansion valve of indoor unit 5 is closed, to make refrigerant migration in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline to the indoor heat exchanger 6 and corresponding pipeline of higher-pressure region, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, namely, when also substantially there is not cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline, compressor 1 is controlled out of service.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus improve the reliability of air-conditioner.
Further, propose air-conditioner control method of the present invention 3rd embodiment based on the second embodiment, in the present embodiment, after described step S40, also comprise:
Step a, when the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed.
Based on the second embodiment, in the present embodiment, when detecting air-conditioner and operating in refrigeration mode, then control compressor 1 with the second predeterminated frequency F
2running, and control electronic expansion valve of indoor unit 5 be adjusted to second preset aperture B
2, off-premises station electric expansion valve 4 is closed.Wherein, described first predeterminated frequency F
1with the second predeterminated frequency F
2can arrange flexibly according to actual conditions, this is not restricted.Described second presets aperture B
2be chosen as the minimum level aperture of described electronic expansion valve of indoor unit 5.
In cooling mode, when described compressor 1 is with described second predeterminated frequency F
2running, described electronic expansion valve of indoor unit 5 is adjusted to described second and presets aperture B
2, when described off-premises station electric expansion valve 4 is closed, be in the indoor heat exchanger 6 and corresponding pipeline that the cold-producing medium in the outdoor heat exchanger 3 of higher-pressure region and corresponding pipeline cannot enter low-pressure area via off-premises station electric expansion valve 4; And due to electronic expansion valve of indoor unit 5 be in open mode, cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline can be compressed in the outdoor heat exchanger 3 and corresponding pipeline entering higher-pressure region by compressor 1, thus in the outdoor heat exchanger 3 making the cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline all be transferred to higher-pressure region gradually and corresponding pipeline.Pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually, and the pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than described preset pressure threshold value P
0time, also namely illustrate in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline and do not existed or there is little cold-producing medium, now, control described compressor 1 out of service, and controlling described electronic expansion valve of indoor unit 5 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, when detecting air-conditioner and operating in refrigeration mode, controls compressor 1 with the second predeterminated frequency F
2running, electronic expansion valve of indoor unit 5 is adjusted to second and presets aperture B
2off-premises station electric expansion valve 4 is closed, to make refrigerant migration in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline to the outdoor heat exchanger 3 and corresponding pipeline of higher-pressure region, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, when substantially there is not cold-producing medium in heat exchanger and corresponding pipeline in the outdoor of also i.e. low-pressure area, control compressor 1 out of service.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus further increase the reliability of air-conditioner.
The present invention further provides a kind of air conditioner controlling device, is the high-level schematic functional block diagram of air conditioner controlling device first embodiment of the present invention with reference to Fig. 4, Fig. 4.
In a first embodiment, this air conditioner controlling device comprises:
Acquisition module 10, for when air-conditioner performs power-off operation, obtains outdoor environment temperature;
In the present embodiment, the off-premises station of air-conditioner is previously provided with temperature sensor, and acquisition module 10 can detect outdoor environment temperature by described temperature sensor.When user does not need using air-condition device, also namely will close air-conditioner, when air-conditioner performs power-off operation, acquisition module 10 obtains outdoor environment temperature T by described temperature sensor.
Further, when receiving shutdown command, acquisition module 10 obtains outdoor environment temperature T by described temperature sensor.Such as, when user sends shutdown command by remote controller to air-conditioner, when receiving described shutdown command, acquisition module 10 obtains outdoor environment temperature T.It will be appreciated by persons skilled in the art that acquisition module 10 is except can when receiving shutdown command, obtain outdoor environment temperature T, can also obtain described outdoor environment temperature T in other cases, this is not restricted.Such as, when operation of air conditioner duration arrives default operation duration and performs power-off operation, or when the shutdown duration of air-conditioner arrives the shutdown duration preset, acquisition module 10 obtains described outdoor environment temperature T.
Processing module 20, for when described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
After acquisition module 10 gets described outdoor environment temperature T, processing module 20 more described outdoor environment temperature T and preset temperature threshold value T
asize.Described preset temperature threshold value T
avalue can arrange flexibly according to actual conditions, in this no limit.If the described outdoor environment temperature T obtained is less than described preset temperature threshold value T
a, then processing module 20 controls compressor 1 and operates with predeterminated frequency F, and outside control room, organic electronic expansion valve 4 is adjusted to first and presets aperture B
1, electronic expansion valve of indoor unit 5 is closed.Wherein, described first aperture B is preset
1be chosen as the minimum level aperture of described off-premises station electric expansion valve 4.If the described outdoor environment temperature T obtained is greater than or equal to described preset temperature threshold value T
aalso namely illustrate that current outdoor environment temperature is higher, after compressor 1 is out of service, cold-producing medium enters compressor 1 and can not be condensed and to mix with lubricating oil, also namely there will not be compressor 1 again starting up time flooded starts problem, therefore, described preset temperature threshold value T is greater than or equal at described outdoor environment temperature T
atime, it is directly out of service that processing module 20 controls compressor 1.
When described compressor 1 operates with predeterminated frequency F, described off-premises station electric expansion valve 4 is adjusted to first and presets aperture B
1, when described electronic expansion valve of indoor unit 5 is closed, the cold-producing medium in indoor heat exchanger 6 and corresponding pipeline cannot enter in outdoor heat exchanger 3 and corresponding pipeline via electronic expansion valve of indoor unit 5; And due to off-premises station electric expansion valve 4 be in opening, cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline can be entered in indoor heat exchanger 6 and corresponding pipeline by compressor 1 compression, thus the cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline is all transferred in indoor heat exchanger 6 and corresponding pipeline gradually.
Control module 30, when being less than preset pressure threshold value for the pipeline air pressure between described compressor and gas-liquid separator, controls described compressor out of service.
In the present embodiment, the pipeline between described compressor 1 and gas-liquid separator 7 is previously provided with pressure sensor, described pressure sensor is for detecting the pipeline air pressure P between described compressor 1 and described gas-liquid separator 7.Because described compressor 1 operates with predeterminated frequency F, cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline enters in indoor heat exchanger 6 and corresponding pipeline by described compressor 1 compression, therefore, the pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually.Pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value P
0time, also namely illustrate in outdoor heat exchanger 3 and corresponding pipeline and do not existed or there is little cold-producing medium, now, it is out of service that control module 30 controls described compressor 1, and controlling described off-premises station electric expansion valve 4 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in outdoor heat exchanger 3 and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, when air-conditioner performs power-off operation, acquisition module 10 obtains outdoor environment temperature, when outdoor environment temperature is less than preset temperature threshold value, processing module 20 controls compressor 1 and operates with predeterminated frequency, off-premises station electric expansion valve 4 is adjusted to first and presets aperture, electronic expansion valve of indoor unit 5 is closed, to make refrigerant migration in outdoor heat exchanger 3 and corresponding pipeline in indoor heat exchanger 6 and corresponding pipeline, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, namely when substantially there is not cold-producing medium in outdoor heat exchanger 3 and corresponding pipeline yet, it is out of service that control module 30 controls compressor 1.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in outdoor heat exchanger 3 and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus improve the reliability of air-conditioner.
Further, as shown in Figure 5, propose air conditioner controlling device second embodiment of the present invention based on the first embodiment, in the present embodiment, described processing module 20 comprises:
Detecting unit 21, for when described outdoor environment temperature is less than preset temperature threshold value, detects the operational mode of air-conditioner;
Processing unit 22, for when the operational mode of air-conditioner is heating mode, controls compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed.
Based on the first embodiment, in the present embodiment, after acquisition module 10 gets described outdoor environment temperature T, if the described outdoor environment temperature T obtained is less than described preset temperature threshold value T
a, then detecting unit 21 detects the operational mode of air-conditioner.When air-conditioner operates in heating mode, then processing unit 22 controls compressor 1 with the first predeterminated frequency F
1running, off-premises station electric expansion valve 4 is adjusted to described first and presets aperture B
1, electronic expansion valve of indoor unit 5 is closed.
In a heating mode, when described compressor 1 is with described first predeterminated frequency F
1running, described off-premises station electric expansion valve 4 is adjusted to first and presets aperture B
1, when described electronic expansion valve of indoor unit 5 is closed, be in the outdoor heat exchanger 3 and corresponding pipeline that the cold-producing medium in the indoor heat exchanger 6 of higher-pressure region and corresponding pipeline cannot enter low-pressure area via electronic expansion valve of indoor unit 5; And due to off-premises station electric expansion valve 4 be in opening, cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline can be compressed in the indoor heat exchanger 6 and corresponding pipeline entering higher-pressure region by compressor 1, thus in the indoor heat exchanger 6 making the cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline all be transferred to higher-pressure region gradually and corresponding pipeline.Pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually.Pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value P
0time, also namely illustrate in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline and do not existed or there is little cold-producing medium, now, control described compressor 1 out of service, and controlling described off-premises station electric expansion valve 4 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, the outdoor environment temperature obtained when acquisition module 10 is less than preset temperature threshold value, if detecting unit 21 detects air-conditioner operate in heating mode, then processing unit 22 controls compressor 1 with the first predeterminated frequency F
1running, off-premises station electric expansion valve 4 is adjusted to described first and presets aperture B
1electronic expansion valve of indoor unit 5 is closed, to make refrigerant migration in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline to the indoor heat exchanger 6 and corresponding pipeline of higher-pressure region, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, namely, when also substantially there is not cold-producing medium in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline, it is out of service that control module 30 controls compressor 1.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in the outdoor heat exchanger 3 of low-pressure area and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus improve the reliability of air-conditioner.
Further, based on the second embodiment, air conditioner controlling device of the present invention 3rd embodiment is proposed, in the present embodiment, described processing unit 22 also for:
When the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed.
Based on the second embodiment, in the present embodiment, when detecting unit 21 detect air-conditioner operate in refrigeration mode time, then processing unit 22 controls compressor 1 with the second predeterminated frequency F
2running, and control electronic expansion valve of indoor unit 5 be adjusted to second preset aperture B
2, off-premises station electric expansion valve 4 is closed.Wherein, described first predeterminated frequency F
1with the second predeterminated frequency F
2can arrange flexibly according to actual conditions, this is not restricted.Described second presets aperture B
2be chosen as the minimum level aperture of described electronic expansion valve of indoor unit 5.
In cooling mode, when described compressor 1 is with described second predeterminated frequency F
2running, described electronic expansion valve of indoor unit 5 is adjusted to described second and presets aperture B
2, when described off-premises station electric expansion valve 4 is closed, be in the indoor heat exchanger 6 and corresponding pipeline that the cold-producing medium in the outdoor heat exchanger 3 of higher-pressure region and corresponding pipeline cannot enter low-pressure area via off-premises station electric expansion valve 4; And due to electronic expansion valve of indoor unit 5 be in open mode, cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline can be compressed in the outdoor heat exchanger 3 and corresponding pipeline entering higher-pressure region by compressor 1, thus in the outdoor heat exchanger 3 making the cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline all be transferred to higher-pressure region gradually and corresponding pipeline.Pipeline air pressure P between described compressor 1 and described gas-liquid separator 7 can diminish gradually, and the pipeline air pressure P between described compressor 1 and gas-liquid separator 7 is less than described preset pressure threshold value P
0time, also namely illustrate in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline and do not existed or there is little cold-producing medium, now, it is out of service that control module 30 controls described compressor 1, and controlling described electronic expansion valve of indoor unit 5 and cross valve 2 is closed, air-conditioner quits work.Owing to not existed in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline or having there is little cold-producing medium, after compressor 1 quits work, just substantially there is not cold-producing medium in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline to enter after compressor 1 is condensed and mix with lubricating oil, therefore, when user opens air-conditioner again, when receiving start-up command, during described compressor 1 starting up, the problem of flooded starts would not be there is, also namely decrease the possibility of liquid hammer.
The scheme that the present embodiment provides, the outdoor environment temperature obtained when acquisition module 10 is less than preset temperature threshold value, if detecting unit 21 detects air-conditioner and operates in refrigeration mode, then processing unit 22 controls compressor 1 and operates with the second predeterminated frequency, electronic expansion valve of indoor unit 5 is adjusted to second and presets aperture, off-premises station electric expansion valve 4 is closed, to make refrigerant migration in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline to the outdoor heat exchanger 3 and corresponding pipeline of higher-pressure region, until the pipeline air pressure between compressor 1 and gas-liquid separator 7 is less than preset pressure threshold value, when substantially there is not cold-producing medium in heat exchanger and corresponding pipeline in the outdoor of yet i.e. low-pressure area, it is out of service that control module 30 controls compressor 1.After compressor 1 is shut down; mix with lubricating oil because the cold-producing medium do not existed in the indoor heat exchanger 6 of low-pressure area and corresponding pipeline enters after compressor 1 is condensed; therefore; compressor 1 again starting up time; just avoid the problem of flooded starts; reduce cold-producing medium and wash away the harm caused, thus further increase the reliability of air-conditioner.
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, described air-conditioner control method comprises the following steps:
When air-conditioner performs power-off operation, obtain outdoor environment temperature;
When described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
When pipeline air pressure between described compressor and gas-liquid separator is less than preset pressure threshold value, control described compressor out of service.
2. air-conditioner control method as claimed in claim 1, it is characterized in that, described control compressor operates with predeterminated frequency, and off-premises station electric expansion valve is adjusted to first and presets aperture, before the step that electronic expansion valve of indoor unit is closed, described air-conditioner control method comprises:
When described outdoor environment temperature is less than preset temperature threshold value, detect the operational mode of air-conditioner;
When the operational mode of air-conditioner is heating mode, performs described control compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, the step that electronic expansion valve of indoor unit is closed.
3. air-conditioner control method as claimed in claim 2, is characterized in that, described when described outdoor environment temperature is less than preset temperature threshold value, and after detecting the step of the operational mode of air-conditioner, described air-conditioner control method also comprises:
When the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed;
When pipeline air pressure between described compressor and gas-liquid separator is less than preset pressure threshold value, control described compressor out of service.
4. the air-conditioner control method as described in any one of claim 1-3, is characterized in that, after the step of described acquisition outdoor environment temperature, described air-conditioner control method also comprises:
When described outdoor environment temperature is greater than or equal to preset temperature threshold value, control compressor out of service.
5. the air-conditioner control method as described in any one of claim 1-3, is characterized in that, when receiving shutdown command, performs the step of described acquisition outdoor environment temperature.
6. an air conditioner controlling device, is characterized in that, described air conditioner controlling device comprises:
Acquisition module, for when air-conditioner performs power-off operation, obtains outdoor environment temperature;
Processing module, for when described outdoor environment temperature is less than preset temperature threshold value, controls compressor and operate with predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed;
Control module, when being less than preset pressure threshold value for the pipeline air pressure between described compressor and gas-liquid separator, controls described compressor out of service.
7. air conditioner controlling device as claimed in claim 6, it is characterized in that, described processing module comprises:
Detecting unit, for when described outdoor environment temperature is less than preset temperature threshold value, detects the operational mode of air-conditioner;
Processing unit, for when the operational mode of air-conditioner is heating mode, controls compressor and operate with the first predeterminated frequency, off-premises station electric expansion valve is adjusted to first and presets aperture, and electronic expansion valve of indoor unit is closed.
8. air conditioner controlling device as claimed in claim 7, is characterized in that, described processing unit also for:
When the operational mode of air-conditioner is refrigeration mode, controls compressor and operate with the second predeterminated frequency, electronic expansion valve of indoor unit is adjusted to second and presets aperture, and off-premises station electric expansion valve is closed.
9. the air conditioner controlling device as described in any one of claim 6-8, is characterized in that, described processing module also for:
When described outdoor environment temperature is greater than or equal to preset temperature threshold value, control compressor out of service.
10. the air conditioner controlling device as described in any one of claim 6-8, is characterized in that, described acquisition module is used for:
When receiving shutdown command, obtain outdoor environment temperature.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152767A (en) * | 2017-06-12 | 2017-09-12 | 广东美的暖通设备有限公司 | Control method, device and the computer-readable recording medium of air conditioner |
| CN107906679A (en) * | 2017-10-31 | 2018-04-13 | 广东美的暖通设备有限公司 | The halt control method of air conditioner, shutdown control system, air conditioner |
| WO2018068531A1 (en) * | 2016-10-10 | 2018-04-19 | 芜湖美智空调设备有限公司 | Method and device for controlling stopping of air conditioner, and air conditioner |
| CN108007027A (en) * | 2017-11-07 | 2018-05-08 | 珠海格力电器股份有限公司 | The halt control method and device of refrigeration system |
| CN110542237A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN113983643A (en) * | 2021-11-05 | 2022-01-28 | 海信（广东）空调有限公司 | Control method of air conditioner |
| CN114440392A (en) * | 2022-02-25 | 2022-05-06 | 海信（山东）空调有限公司 | Air conditioner and air conditioner control method |
| WO2023010860A1 (en) * | 2021-08-02 | 2023-02-09 | 美的集团股份有限公司 | Air conditioner control method, air conditioner, storage medium, and air conditioner control apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176008A (en) * | 1991-07-10 | 1993-01-05 | Steenburgh Leon R Jr | Refrigerant reclaim method and apparatus |
| CN2241293Y (en) * | 1995-10-17 | 1996-11-27 | 顺德珠江空调设备厂 | Outdoor machine of improved cooling and heating type split air conditioner |
| CN1632388A (en) * | 2003-12-23 | 2005-06-29 | 乐金电子(天津)电器有限公司 | Device for increasing air conditioner air exhaust temperature during low temperature operation |
| CN1798946A (en) * | 2003-04-04 | 2006-07-05 | 开利公司 | Compressor protection from liouid hazards |
| CN203518358U (en) * | 2013-08-08 | 2014-04-02 | 广州日立冷机有限公司 | Refrigerant management system for preventing hydraulic filling unit start-up liquid impact |
-
2016
- 2016-01-04 CN CN201610008930.0A patent/CN105546752B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176008A (en) * | 1991-07-10 | 1993-01-05 | Steenburgh Leon R Jr | Refrigerant reclaim method and apparatus |
| CN2241293Y (en) * | 1995-10-17 | 1996-11-27 | 顺德珠江空调设备厂 | Outdoor machine of improved cooling and heating type split air conditioner |
| CN1798946A (en) * | 2003-04-04 | 2006-07-05 | 开利公司 | Compressor protection from liouid hazards |
| CN1632388A (en) * | 2003-12-23 | 2005-06-29 | 乐金电子(天津)电器有限公司 | Device for increasing air conditioner air exhaust temperature during low temperature operation |
| CN203518358U (en) * | 2013-08-08 | 2014-04-02 | 广州日立冷机有限公司 | Refrigerant management system for preventing hydraulic filling unit start-up liquid impact |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068531A1 (en) * | 2016-10-10 | 2018-04-19 | 芜湖美智空调设备有限公司 | Method and device for controlling stopping of air conditioner, and air conditioner |
| CN107152767A (en) * | 2017-06-12 | 2017-09-12 | 广东美的暖通设备有限公司 | Control method, device and the computer-readable recording medium of air conditioner |
| CN107152767B (en) * | 2017-06-12 | 2020-12-15 | 广东美的暖通设备有限公司 | Control method and device of air conditioner and computer readable storage medium |
| CN107906679A (en) * | 2017-10-31 | 2018-04-13 | 广东美的暖通设备有限公司 | The halt control method of air conditioner, shutdown control system, air conditioner |
| CN108007027A (en) * | 2017-11-07 | 2018-05-08 | 珠海格力电器股份有限公司 | The halt control method and device of refrigeration system |
| CN110542237A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN110542237B (en) * | 2019-09-12 | 2021-03-30 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| WO2023010860A1 (en) * | 2021-08-02 | 2023-02-09 | 美的集团股份有限公司 | Air conditioner control method, air conditioner, storage medium, and air conditioner control apparatus |
| CN113983643A (en) * | 2021-11-05 | 2022-01-28 | 海信（广东）空调有限公司 | Control method of air conditioner |
| CN114440392A (en) * | 2022-02-25 | 2022-05-06 | 海信（山东）空调有限公司 | Air conditioner and air conditioner control method |
| CN114440392B (en) * | 2022-02-25 | 2023-10-27 | 海信空调有限公司 | Air conditioner and air conditioner control method |
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