CN105202724A - Air conditioner control method, air conditioner control device and air conditioner - Google Patents
Air conditioner control method, air conditioner control device and air conditioner Download PDFInfo
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- CN105202724A CN105202724A CN201510698280.2A CN201510698280A CN105202724A CN 105202724 A CN105202724 A CN 105202724A CN 201510698280 A CN201510698280 A CN 201510698280A CN 105202724 A CN105202724 A CN 105202724A
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- temperature
- conditioner
- air
- chassis
- heat exchange
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims description 82
- 238000005057 refrigeration Methods 0.000 claims description 11
- 238000010257 thawing Methods 0.000 abstract description 19
- 239000003570 air Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000012544 monitoring process Methods 0.000 description 20
- 239000000203 mixture Substances 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000007710 freezing Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000008014 freezing Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control method. The air conditioner control method comprises the following steps of collecting the heat exchanger temperature of an outdoor unit of an air conditioner, and judging whether the air conditioner frosts or not according to the collected heat exchanger temperature; if the air conditioner frosts, controlling the air conditioner to conduct defrosting; when the air conditioner conducts defrosting, collecting the heat exchanger temperature, the base plate upper portion temperature and the base plate lower portion temperature of the outdoor unit, and judging whether defrosting conducted by the air conditioner is ended or not according to collected temperature information; if defrosting conducted by the air conditioner is ended, controlling the air conditioner to stop defrosting. The invention further discloses an air conditioner control device and the air conditioner. By means of the air conditioner control method, the air conditioner control device and the air conditioner, it is guaranteed that frost on a base plate of the outdoor unit, frost between the base plate and a heat exchanger and frost on the heat exchanger are all molten thoroughly.
Description
Technical field
The present invention relates to field of air conditioner control, particularly relate to a kind of air-conditioner control method, air conditioner controlling device and air-conditioner.
Background technology
At present, air-conditioner composition mainly comprises: the large part of compressor, outdoor heat exchanger, throttling arrangement, indoor heat exchanger four.When air-conditioner operation heats; or when outdoor environment is colder, relative humidity is larger; the outdoor heat exchange copper pipe that the condensed water of the heat exchanger surface of air-conditioner outdoor unit touches low temperature very easily congeals into ice; the heating effect of air-conditioner usually can be caused greatly to reduce; therefore, air-conditioner is needed the frost of outdoor heat exchanger to be removed by defrost control.Air-conditioner is generally switched to refrigeration mode by existing Defrost mode, and utilize the heat of outdoor heat exchange copper pipe the frost be attached on outdoor heat exchanger to be melted, the water changed into outdoor heat exchanger flows down, and is discharged by the osculum in chassis.But when outdoor environment is lower, the condensed water in chassis usually can congeal into ice, after long-time, chassis is often caused to be covered with ice layer.And existing Defrost mode; because the condition exiting defrost is generally control according to the temperature of outdoor heat exchanger; thus, the local location in air-conditioner Defrost operation rear chassis or between chassis and outdoor heat exchanger usually can be caused to still have remaining ice sheet, make defrost not thorough.
Therefore, the halfway problem of local location defrost in existing air-conditioner defrost process, problems demand inventor in this respect solves.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is to solve the halfway problem of local location defrost in existing air-conditioner defrost process.
For achieving the above object, the invention provides a kind of air-conditioner control method, described air-conditioner control method comprises the following steps:
Gather the heat exchange temperature of air-conditioner outdoor unit, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
If the frosting of described air-conditioner, then control described air-conditioner and carry out defrost;
When described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge whether defrost terminates described air-conditioner according to the temperature information gathered;
If described air-conditioner defrost terminates, then control described air-conditioner and stop defrost.
Preferably, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor;
Described when described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge that the described air-conditioner step whether defrost terminates comprises according to the temperature information gathered:
When described air-conditioner defrost, control described first temperature sensor and detect heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
The heat exchange temperature detected and the first preset temperature are compared, the chassis upper temperature detected and chassis temperature of lower are compared with the second preset temperature respectively;
If the heat exchange temperature detected is higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
Preferably, if the frosting of described air-conditioner, then control the step that described air-conditioner carries out defrost and comprise:
If the frosting of described air-conditioner, then control described air-conditioner running refrigerating pattern, and control the paster heating in described bottom plate of outdoor unit;
And, if described air-conditioner defrost terminate, then control described air-conditioner and stop the step of defrost to comprise:
If described air-conditioner defrost terminates, then control described air-conditioner and exit refrigeration mode, and control described paster stopping heating.
Preferably, the heat exchange temperature of described collection air-conditioner outdoor unit, and judge that the step of described air-conditioner whether frosting comprises according to the heat exchange temperature gathered:
When described air-conditioner runs heating mode, control described first temperature sensor and detect heat exchange temperature;
The heat exchange temperature detected and the 3rd preset temperature are compared;
If the heat exchange temperature detected lower than described 3rd preset temperature, then determines the frosting of described air-conditioner.
Preferably, the heat exchange temperature of described collection air-conditioner outdoor unit, and judge the step of described air-conditioner whether frosting according to the heat exchange temperature gathered before, also comprise:
When described air-conditioner starts heating mode, control described paster heating Preset Time with start quickly.
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:
Judge module, for gathering the heat exchange temperature of air-conditioner outdoor unit, and judges the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
Control module, if for described air-conditioner frosting, then controls described air-conditioner and carries out defrost;
Described judge module, also for when described air-conditioner defrost, gathers the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered;
Described control module, if also terminate for described air-conditioner defrost, then controls described air-conditioner and stops defrost.
Preferably, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor;
Described judge module comprises temperature collecting cell, comparing unit and determining unit;
Described temperature collecting cell, for when described air-conditioner defrost, controls described first temperature sensor and detects heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
Described comparing unit, for the heat exchange temperature detected and the first preset temperature being compared, compares with the second preset temperature respectively by the chassis upper temperature detected and chassis temperature of lower;
Described determining unit, if for the heat exchange temperature that detects higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
Preferably, described control module, if also for described air-conditioner frosting, then controls described air-conditioner running refrigerating pattern, and controls the paster heating in described bottom plate of outdoor unit;
Described control module, if also terminate for described air-conditioner defrost, then controls described air-conditioner and exits refrigeration mode, and controls described paster stopping heating.
Preferably, described temperature collecting cell, also for when described air-conditioner runs heating mode, controls described first temperature sensor and detects heat exchange temperature;
Described comparing unit, also for the heat exchange temperature detected and the 3rd preset temperature being compared;
Described determining unit, if also for the heat exchange temperature that detects lower than described 3rd preset temperature, then determine the frosting of described air-conditioner.
Preferably, described air conditioner controlling device also comprises warm-up block;
Described warm-up block, for when described air-conditioner starts heating mode, controls described paster heating Preset Time with start quickly.
In addition, for achieving the above object, the present invention also provides a kind of air-conditioner, described air-conditioner comprises off-premises station and air conditioner controlling device as above, described off-premises station comprises heat exchanger and chassis, the first temperature sensor for detecting heat exchange temperature is provided with in described heat exchanger, described chassis upper is provided with the second temperature sensor for detecting chassis upper temperature, bottom, described chassis is provided with the three-temperature sensor for detecting chassis temperature of lower, is provided with the paster for heating in described chassis; Described first temperature sensor, described second temperature sensor, described three-temperature sensor and described paster are connected with described air conditioner controlling device respectively.
By the heat exchange temperature of air-conditioner outdoor unit, chassis upper temperature and the chassis temperature of lower gathered, the present invention judges whether defrost terminates air-conditioner, realize heat exchanger by heat collecting exchanger temperature to freeze the monitoring of situation, the monitoring to tray bottom ice sheet situation is realized by chassis temperature of lower, the monitoring to chassis upper and the ice sheet situation between chassis and heat exchanger is realized by chassis upper temperature, bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the first embodiment of air-conditioner control method of the present invention;
Fig. 2 is the schematic flow sheet of the second embodiment of air-conditioner control method of the present invention;
Fig. 3 is the schematic flow sheet of the 3rd embodiment of air-conditioner control method of the present invention;
Fig. 4 is the schematic flow sheet of the 4th embodiment of air-conditioner control method of the present invention;
Fig. 5 is the schematic flow sheet of the 5th embodiment of air-conditioner control method of the present invention;
Fig. 6 is the high-level schematic functional block diagram of the first embodiment of air-conditioner of the present invention;
Fig. 7 is the high-level schematic functional block diagram of the second embodiment of air-conditioner of the present invention;
Fig. 8 is the high-level schematic functional block diagram of the 3rd embodiment of air-conditioner of the present invention;
Fig. 9 is the outdoor unit structure schematic diagram of air-conditioner of the present invention;
Figure 10 is the chassis structure schematic diagram of air-conditioner outdoor unit 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 primary solutions of the embodiment of the present invention is: gather the heat exchange temperature of air-conditioner outdoor unit, and judges the whether frosting of described air-conditioner according to the heat exchange temperature gathered; If the frosting of described air-conditioner, then control described air-conditioner and carry out defrost; When described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge whether defrost terminates described air-conditioner according to the temperature information gathered; If described air-conditioner defrost terminates, then control described air-conditioner and stop defrost.
The halfway problem of local location defrost in existing air-conditioner defrost process.
Based on the problems referred to above, the invention provides a kind of air-conditioner control method.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are the first embodiment of air-conditioner control method of the present invention.
In the present embodiment, described air-conditioner control method comprises:
Step S10, gathers the heat exchange temperature of air-conditioner outdoor unit, and judges the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
Air-conditioner mainly comprises compressor, condenser, throttling arrangement and evaporimeter, and evaporimeter is that post-decompression for throttling arrangement liquid refrigerant is evaporated, and absorbs the heat exchanger of evaporimeter ambient air heat.Condenser is that the cold-producing medium of the high pressure gaseous of being discharged by compressor carries out heat release, makes the heat of cold-producing medium dissipate and be condensed into the heat exchanger of high-pressure liquid.For the domestic air conditioner of routine, when running heating mode, the heat exchanger of air-conditioner outdoor unit plays evaporimeter, is easier to frosting when outdoor environment temperature is lower.Preferably, air-conditioner control method of the present invention can when air-conditioner runs heating mode, gathers the heat exchange temperature of off-premises station, and judges the outdoor unit heat exchanger whether frosting of described air-conditioner according to the heat exchange temperature gathered; Certainly, also when air-conditioner runs other pattern such as dehumidifying, air vent mode, the heat exchange temperature of off-premises station can be gathered, and judge the heat exchanger whether frosting of described air-conditioner outdoor unit according to the heat exchange temperature of collection.The heat exchange coil place of heat exchanger is provided with temperature sensor, and above-mentioned heat exchange temperature specifically refers to the temperature of the heat exchange coil detected by this temperature sensor.
Preferably, can when described air-conditioner run heating mode, the temperature sensor controlled in described heat exchanger detects heat exchange temperature; The heat exchange temperature detected and the temperature threshold preset are compared, described temperature threshold can be set to the critical-temperature of described air-conditioner frosting; If the heat exchange temperature detected is lower than described temperature threshold, then determine the frosting of described air-conditioner.
Step S20, if the frosting of described air-conditioner, then controls described air-conditioner and carries out defrost;
If judge the frosting of described air-conditioner, then controlling described air-conditioner and carry out defrost, preferably, refrigeration mode can be switched to by controlling described air-conditioner, to make the frost being attached to heat exchanger be heated thawing, the warm water formed after melting flows down from heat exchanger and is melted by the ice sheet chassis further; Or, also can control the paster heating in described bottom plate of outdoor unit, to melt the ice sheet on described chassis.
If determine the non-frosting of described air-conditioner, then continue to gather the heat exchange temperature of off-premises station, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered.
Step S30, when described air-conditioner defrost, gathers the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered;
The chassis of described air-conditioner outdoor unit, be the base plate of each parts for installing fixing described off-premises station inside, the top on described chassis is the direction of described chassis near described heat exchanger, and the bottom on described chassis is the direction of described chassis away from described heat exchanger.When described air-conditioner defrost, by gathering the heat exchange temperature of described air-conditioner outdoor unit, to realize monitoring the temperature of described outdoor unit heat exchanger, and then judge whether defrost completes described heat exchanger; By gathering the upper temp on described chassis, to realize monitoring the temperature of described chassis upper, and then whether the intermediate layer judging between described chassis and described heat exchanger is changed ice and is completed; By gathering the temperature of lower on described chassis, to realize monitoring the temperature of bottom, described chassis, and then judge whether described chassis is changed ice and completed.Should be understood that, for judging that the described air-conditioner temperature information whether defrost terminates comprises: the heat exchange temperature of the described off-premises station gathered when described air-conditioner defrost, chassis upper temperature and chassis temperature of lower.
Preferably, heat exchange temperature can be detected by the temperature sensor being arranged on heat exchanger coils place, detect chassis upper temperature by the temperature sensor being arranged on described chassis upper, detect chassis temperature of lower by the temperature sensor being arranged on bottom, described chassis; The heat exchange temperature detected is completed temperature with the heat exchanger defrosting preset compare, the chassis upper temperature detected and chassis temperature of lower are compared with the chassis freezing temperature preset respectively; If the heat exchange temperature detected completes temperature higher than described heat exchanger defrosting, and the chassis upper temperature detected and chassis temperature of lower are all higher than chassis freezing temperature, then determine that described air-conditioner defrost terminates.
Step S40, if described air-conditioner defrost terminate, then control described air-conditioner stop defrost.
Determine described off-premises station chassis, between chassis and heat exchanger and when the frost of heat exchanger is all melted, control described air-conditioner stop defrost, and continue run heating mode.Preferably, at the end of determining described air-conditioner defrost, described air-conditioner can be controlled and runs heating mode, and control described paster heating Preset Time, to make chassis keep dry, effectively prevent the residual condensed water in chassis from again freezing, described Preset Time is preferably set to 2 minutes.
If determine, described air-conditioner defrost does not terminate, then continue the heat exchange temperature of the described off-premises station of collection, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered.
By the heat exchange temperature of air-conditioner outdoor unit, chassis upper temperature and the chassis temperature of lower gathered, the present embodiment judges whether defrost terminates air-conditioner, realize heat exchanger by heat collecting exchanger temperature to freeze the monitoring of situation, the monitoring to tray bottom ice sheet situation is realized by chassis temperature of lower, the monitoring to chassis upper and the ice sheet situation between chassis and heat exchanger is realized by chassis upper temperature, bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
With reference to the schematic flow sheet that Fig. 2, Fig. 2 are the second embodiment of air-conditioner control method of the present invention.Based on the first embodiment of above-mentioned air-conditioner control method, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor; Described step S30 comprises:
Step S300, when described air-conditioner defrost, controls described first temperature sensor and detects heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
When described air-conditioner defrost, detecting heat exchange temperature by controlling described first temperature sensor, controlling described second temperature sensor and detecting chassis upper temperature, controlling described three-temperature sensor and detect chassis temperature of lower.Described first temperature sensor, described second temperature sensor, described three-temperature sensor can be all the thermistor of totally-enclosed encapsulation.
Step S301, compares the heat exchange temperature detected and the first preset temperature, the chassis upper temperature detected and chassis temperature of lower is compared with the second preset temperature respectively;
Described first preset temperature is that heat exchanger defrosting completes temperature, for judging whether described heat exchanger also exists frost when described air-conditioner defrost, if the heat exchange temperature detected is lower than described first preset temperature, then determine that described heat exchanger exists frost, described heat exchanger defrosting does not complete; If detect, described heat exchange temperature is higher than described first preset temperature, then determine anti-freezing in described heat exchanger, described heat exchanger defrosting completes.Described first preset temperature is preferably set to 23 DEG C.
Described second preset temperature is chassis freezing temperature, for judging whether described chassis and the intermediate layer between described chassis and described heat exchanger also exist mixture of ice and water or ice sheet, if detect, described chassis upper temperature is lower than described second preset temperature, then determine that described chassis upper and the intermediate layer between described chassis and described heat exchanger also exist residual ice sheet, if detect, described chassis temperature of lower is lower than described second preset temperature, then determine that described tray bottom also exists mixture of ice and water or ice sheet.Described second preset temperature is preferably 0 DEG C.
Step S302, if the heat exchange temperature detected is higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
If detect, heat exchange temperature is higher than described first preset temperature, then determine that the frost of described heat exchanger is all melted; If detect, described chassis upper temperature is higher than described second preset temperature, then determine that described chassis upper and the ice sheet between described chassis and described heat exchanger all melt; If detect, described chassis temperature of lower is higher than described second preset temperature, then determine that described tray bottom ice sheet all melts, and mixture of ice and water is discharged, chassis, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, determine that described air-conditioner defrost terminates.
If detect, described heat exchange temperature is lower than described first preset temperature, or described chassis upper temperature is lower than described second preset temperature, or described chassis temperature of lower is lower than described second preset temperature, then determine that described air-conditioner defrost does not terminate, also there is residual ice sheet or mixture of ice and water, control described air-conditioner and continue defrost, and continue to detect heat exchange temperature, chassis upper temperature and chassis temperature of lower.
The present embodiment is when air-conditioner defrost, by gathering the heat exchange temperature of off-premises station, chassis upper temperature and chassis temperature of lower judge whether defrost terminates air-conditioner, compared by heat exchange temperature and the first preset temperature, judge whether also there is frost in described heat exchanger, compared by chassis upper temperature and the second preset temperature, judge whether described chassis upper and the intermediate layer between chassis and heat exchanger exist ice sheet, compared by chassis temperature of lower and the second preset temperature, judge whether described tray bottom also exists mixture of ice and water or ice sheet, at bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that the chassis of air-conditioner outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
With reference to the schematic flow sheet that Fig. 3, Fig. 3 are the 3rd embodiment of air-conditioner control method of the present invention.Based on the first embodiment of above-mentioned air-conditioner control method, described step S20 comprises:
Step S200, if the frosting of described air-conditioner, then controls described air-conditioner running refrigerating pattern, and controls the paster heating in described bottom plate of outdoor unit;
And described step 40 comprises:
Step S400, if described air-conditioner defrost terminate, then control described air-conditioner and exit refrigeration mode, and control described paster stop heating.
Described paster is arranged in described bottom plate of outdoor unit.Preferably, described paster is arranged on the upper surface of described bottom plate of outdoor unit, is provided with loop line in described paster, with electrified regulation.And during described paster heating, the heat exchanger fin of close described paster can be transferred heat to by heat radiation, and by described heat exchanger fin, heat is passed to the heat exchange copper tube (i.e. the heat exchange coil of heat exchanger) of heat exchanger.Preferably, by being energized to described paster, can heat to control described paster, and by carrying out power-off to described paster, stop heating to control described paster.
Gather the heat exchange temperature of off-premises station, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered; If the frosting of described air-conditioner, then control described air-conditioner running refrigerating pattern, and control the paster heating in described bottom plate of outdoor unit; When described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge whether defrost terminates described air-conditioner according to the temperature information gathered; If described air-conditioner defrost terminates, then control described air-conditioner and exit refrigeration mode, and control described paster stopping heating.
The present embodiment is by controlling described air-conditioner running refrigerating pattern, the melts of heat exchanger is made by the heat of heat exchanger, and under the stream of warm water by thawing, thus the ice sheet between chassis and described heat exchanger and the ice sheet in chassis are melted, heated by chassis paster simultaneously, the ice sheet in chassis is made to accelerate to melt, simultaneously, because chassis paster is evenly distributed on chassis surface, making of even heat ice better effects if, and the ice sheet that the heat that paster produces is accelerated between chassis and heat exchanger by heat radiation melts, further improve ice and defrost effect.Chassis, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that the chassis of air-conditioner outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
With reference to the schematic flow sheet that Fig. 4, Fig. 4 are the 4th embodiment of air-conditioner control method of the present invention.Based on the first embodiment of above-mentioned air-conditioner control method, described step S10 comprises:
Step S100, when described air-conditioner runs heating mode, controls described first temperature sensor and detects heat exchange temperature;
Step S101, compares the heat exchange temperature detected and the 3rd preset temperature;
Step S102, if the heat exchange temperature detected is lower than described 3rd preset temperature, then determines the frosting of described air-conditioner.
Described 3rd preset temperature is used for judging the whether frosting of described heat exchanger when air-conditioner runs heating module, if detect, described heat exchange temperature is lower than described 3rd preset temperature, then determine the frosting of described heat exchanger, if detect, described heat exchange temperature is higher than described 3rd preset temperature, then determine the non-frosting of described heat exchanger.Described 3rd preset temperature is preferably-4 DEG C.
Such as: when detecting described air-conditioner and running heating mode, control described first temperature and pass detection heat exchange temperature, if the heat exchange temperature >-4 DEG C detected, then determine the non-frosting of the heat exchanger of described off-premises station; If the heat exchange temperature <-4 DEG C that continuous 2 minutes detect, then determine the heat exchanger frosting of described off-premises station, when described air-conditioner frosting, control air-conditioner and carry out defrost.
Further, the heat exchange temperature detected and easy frosting temperature range can also be compared, if when the heat exchange temperature detected is in described easy frosting temperature range, judge that described air-conditioner is in easy frosting state, the heating capacity of described air-conditioner declines, while maintenance air-conditioner runs heating mode, control the paster heating of described chassis, the heat of described paster is passed to the copper pipe of heat exchanger by heat exchanger fin, environment temperature temperature around described heat exchanger is raised, thus raising evaporating temperature, make heat exchanger be not easy frosting.Reach and slow down air-conditioner frosting, or prevent the effect of air-conditioner frosting to a certain extent.Described easy frosting temperature range is preferably the temperature range of-1 DEG C to 0 DEG C.
Such as :-1 DEG C of < heat exchange temperature <0 DEG C detected double, or continuous 2 minutes when detecting-1 DEG C of < heat exchange temperature <0 DEG C, judge that described air-conditioner is in easy frosting state, when keeping air-conditioner to run heating mode, control the paster heating of described chassis, when described heat exchange temperature >0 DEG C being detected, controlling described paster power-off and stopping heating.
Heat exchange temperature and the 3rd preset temperature, by detecting heat exchange temperature, are compared and are judged the whether frosting of described air-conditioner by the present embodiment, carry out defrost with the control air-conditioner when described air-conditioner frosting.Further, by heat exchange temperature and the easy frosting temperature range preset are compared, with when monitoring heat exchange temperature and reaching described easy frosting temperature range, control paster heating and prevent heat exchanger frosting, do not hinder the operation of air conditioner heat-production simultaneously.
With reference to the schematic flow sheet that Fig. 5, Fig. 5 are the 5th embodiment of air-conditioner control method of the present invention.Based on the first embodiment of above-mentioned air-conditioner control method, before described step S10, also comprise:
Step S11, when described air-conditioner starts heating mode, controls described paster heating Preset Time with start quickly.
When detecting described air-conditioner and starting heating mode, control the energising of described paster to heat, the heat of described paster is passed to heat exchanger copper pipe by heat exchanger fin, thus raising evaporating temperature, make the temperature in room increase rapidly, control described paster power-off after continuous heating Preset Time and stop heating.Described Preset Time is preferably 10 minutes.
The present embodiment is when air-conditioner startup heats, and heated by the paster on chassis, improve the temperature of heat exchanger copper pipe, thus improve evaporating temperature, make the temperature in room increase rapidly, improve heating efficiency when starting, quickening heats toggle speed.
The present invention further provides a kind of air conditioner controlling device.
With reference to the high-level schematic functional block diagram that Fig. 6, Fig. 6 are the first embodiment of air conditioner controlling device of the present invention.
In the present embodiment, described air conditioner controlling device comprises: judge module 10 and control module 20.
Described judge module 10, for gathering the heat exchange temperature of air-conditioner outdoor unit, and judges the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
Air-conditioner mainly comprises compressor, condenser, throttling arrangement and evaporimeter, and evaporimeter is that post-decompression for throttling arrangement liquid refrigerant is evaporated, and absorbs the heat exchanger of evaporimeter ambient air heat.Condenser is that the cold-producing medium of the high pressure gaseous of being discharged by compressor carries out heat release, makes the heat of cold-producing medium dissipate and be condensed into the heat exchanger of high-pressure liquid.For the domestic air conditioner of routine, when running heating mode, the heat exchanger of air-conditioner outdoor unit plays evaporimeter, is easier to frosting when outdoor environment temperature is lower.Preferably, air-conditioner control method of the present invention can when air-conditioner runs heating mode, gathers the heat exchange temperature of off-premises station, and judges the outdoor unit heat exchanger whether frosting of described air-conditioner according to the heat exchange temperature gathered; Certainly, also when air-conditioner runs other pattern such as dehumidifying, air vent mode, the heat exchange temperature of off-premises station can be gathered, and judge the heat exchanger whether frosting of described air-conditioner outdoor unit according to the heat exchange temperature of collection.The heat exchange coil place of heat exchanger is provided with temperature sensor, and above-mentioned heat exchange temperature specifically refers to the temperature of the heat exchange coil detected by this temperature sensor.
Preferably, can when described air-conditioner run heating mode, the temperature sensor controlled in described heat exchanger detects heat exchange temperature; The heat exchange temperature detected and the temperature threshold preset are compared, described temperature threshold can be set to the critical-temperature of described air-conditioner frosting; If the heat exchange temperature detected is lower than described temperature threshold, then determine the frosting of described air-conditioner.
Described control module 20, if for described air-conditioner frosting, then controls described air-conditioner and carries out defrost;
If judge the frosting of described air-conditioner, then controlling described air-conditioner and carry out defrost, preferably, refrigeration mode can be switched to by controlling described air-conditioner, to make the frost being attached to heat exchanger be heated thawing, the warm water formed after melting flows down from heat exchanger and is melted by the ice sheet chassis further; Or, also can control the paster heating in described bottom plate of outdoor unit, to melt the ice sheet on described chassis.
If determine the non-frosting of described air-conditioner, then continue to gather the heat exchange temperature of off-premises station, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered.
Described judge module 10, also for when described air-conditioner defrost, gathers the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered;
The chassis of described air-conditioner outdoor unit, be the base plate of each parts for installing fixing described off-premises station inside, the top on described chassis is the direction of described chassis near described heat exchanger, and the bottom on described chassis is the direction of described chassis away from described heat exchanger.When described air-conditioner defrost, by gathering the heat exchange temperature of described air-conditioner outdoor unit, to realize monitoring the temperature of described outdoor unit heat exchanger, and then judge whether defrost completes described heat exchanger; By gathering the upper temp on described chassis, to realize monitoring the temperature of described chassis upper, and then whether the intermediate layer judging between described chassis and described heat exchanger is changed ice and is completed; By gathering the temperature of lower on described chassis, to realize monitoring the temperature of bottom, described chassis, and then judge whether described chassis is changed ice and completed.Should be understood that, for judging that the described air-conditioner temperature information whether defrost terminates comprises: the heat exchange temperature of the described off-premises station gathered when described air-conditioner defrost, chassis upper temperature and chassis temperature of lower.
Preferably, heat exchange temperature can be detected by the temperature sensor being arranged on heat exchanger coils place, detect chassis upper temperature by the temperature sensor being arranged on described chassis upper, detect chassis temperature of lower by the temperature sensor being arranged on bottom, described chassis; The heat exchange temperature detected is completed temperature with the heat exchanger defrosting preset compare, the chassis upper temperature detected and chassis temperature of lower are compared with the chassis freezing temperature preset respectively; If the heat exchange temperature detected completes temperature higher than described heat exchanger defrosting, and the chassis upper temperature detected and chassis temperature of lower are all higher than chassis freezing temperature, then determine that described air-conditioner defrost terminates.
Described control module 20, if also terminate for described air-conditioner defrost, then controls described air-conditioner and stops defrost.
Determine described off-premises station chassis, between chassis and heat exchanger and when the frost of heat exchanger is all melted, control described air-conditioner stop defrost, and continue run heating mode.Preferably, at the end of determining described air-conditioner defrost, described air-conditioner can be controlled and runs heating mode, and control described paster heating Preset Time, to make chassis keep dry, effectively prevent the residual condensed water in chassis from again freezing, described Preset Time is preferably set to 2 minutes.
If determine, described air-conditioner defrost does not terminate, then continue the heat exchange temperature of the described off-premises station of collection, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered.
By the heat exchange temperature of air-conditioner outdoor unit, chassis upper temperature and the chassis temperature of lower gathered, the present embodiment judges whether defrost terminates air-conditioner, realize heat exchanger by heat collecting exchanger temperature to freeze the monitoring of situation, the monitoring to tray bottom ice sheet situation is realized by chassis temperature of lower, the monitoring to chassis upper and the ice sheet situation between chassis and heat exchanger is realized by chassis upper temperature, bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
With reference to the high-level schematic functional block diagram that Fig. 7, Fig. 7 are the second embodiment of air conditioner controlling device of the present invention.Based on the first embodiment of above-mentioned air conditioner controlling device, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor; Described judge module 10 comprises temperature collecting cell 101, comparing unit 102 and determining unit 103;
Described temperature collecting cell 101, for when described air-conditioner defrost, controls described first temperature sensor and detects heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
When described air-conditioner defrost, detecting heat exchange temperature by controlling described first temperature sensor, controlling described second temperature sensor and detecting chassis upper temperature, controlling described three-temperature sensor and detect chassis temperature of lower.Described first temperature sensor, described second temperature sensor, described three-temperature sensor can be all the thermistor of totally-enclosed encapsulation.
Described comparing unit 102, for the heat exchange temperature detected and the first preset temperature being compared, compares with the second preset temperature respectively by the chassis upper temperature detected and chassis temperature of lower;
Described first preset temperature is that heat exchanger defrosting completes temperature, for judging whether described heat exchanger also exists frost when described air-conditioner defrost, if the heat exchange temperature detected is lower than described first preset temperature, then determine that described heat exchanger exists frost, described heat exchanger defrosting does not complete; If detect, described heat exchange temperature is higher than described first preset temperature, then determine anti-freezing in described heat exchanger, described heat exchanger defrosting completes.Described first preset temperature is preferably set to 23 DEG C.
Described second preset temperature is chassis freezing temperature, for judging whether described chassis and the intermediate layer between described chassis and described heat exchanger also exist mixture of ice and water or ice sheet, if detect, described chassis upper temperature is lower than described second preset temperature, then determine that described chassis upper and the intermediate layer between described chassis and described heat exchanger also exist residual ice sheet, if detect, described chassis temperature of lower is lower than described second preset temperature, then determine that described tray bottom also exists mixture of ice and water or ice sheet.Described second preset temperature is preferably 0 DEG C.
Described determining unit 103, if for the heat exchange temperature that detects higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
If detect, heat exchange temperature is higher than described first preset temperature, then determine that the frost of described heat exchanger is all melted; If detect, described chassis upper temperature is higher than described second preset temperature, then determine that described chassis upper and the ice sheet between described chassis and described heat exchanger all melt; If detect, described chassis temperature of lower is higher than described second preset temperature, then determine that described tray bottom ice sheet all melts, and mixture of ice and water is discharged, chassis, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, determine that described air-conditioner defrost terminates.
If detect, described heat exchange temperature is lower than described first preset temperature, or described chassis upper temperature is lower than described second preset temperature, or described chassis temperature of lower is lower than described second preset temperature, then determine that described air-conditioner defrost does not terminate, also there is residual ice sheet or mixture of ice and water, control described air-conditioner and continue defrost, and continue to detect heat exchange temperature, chassis upper temperature and chassis temperature of lower.
The present embodiment is when air-conditioner defrost, by gathering the heat exchange temperature of off-premises station, chassis upper temperature and chassis temperature of lower judge whether defrost terminates air-conditioner, compared by heat exchange temperature and the first preset temperature, judge whether also there is frost in described heat exchanger, compared by chassis upper temperature and the second preset temperature, judge whether described chassis upper and the intermediate layer between chassis and heat exchanger exist ice sheet, compared by chassis temperature of lower and the second preset temperature, judge whether described tray bottom also exists mixture of ice and water or ice sheet, at bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that the chassis of air-conditioner outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
Further, described control module 20, if also for described air-conditioner frosting, then controls described air-conditioner running refrigerating pattern, and controls the paster heating in described bottom plate of outdoor unit;
Described control module 20, if also terminate for described air-conditioner defrost, then controls described air-conditioner and exits refrigeration mode, and controls described paster stopping heating.
Described paster is arranged in described bottom plate of outdoor unit.Preferably, described paster is arranged on the upper surface of described bottom plate of outdoor unit, is provided with loop line in described paster, with electrified regulation.And during described paster heating, the heat exchanger fin of close described paster can be transferred heat to by heat radiation, and by described heat exchanger fin, heat is passed to the heat exchange copper tube (i.e. the heat exchange coil of heat exchanger) of heat exchanger.Preferably, by being energized to described paster, can heat to control described paster, and by carrying out power-off to described paster, stop heating to control described paster.
Gather the heat exchange temperature of off-premises station, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered; If the frosting of described air-conditioner, then control described air-conditioner running refrigerating pattern, and control the paster heating in described bottom plate of outdoor unit; When described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge whether defrost terminates described air-conditioner according to the temperature information gathered; If described air-conditioner defrost terminates, then control described air-conditioner and exit refrigeration mode, and control described paster stopping heating.
The present embodiment is by controlling described air-conditioner running refrigerating pattern, the melts of heat exchanger is made by the heat of heat exchanger, and under the stream of warm water by thawing, thus the ice sheet between chassis and described heat exchanger and the ice sheet in chassis are melted, heated by chassis paster simultaneously, the ice sheet in chassis is made to accelerate to melt, simultaneously, because chassis paster is evenly distributed on chassis surface, making of even heat ice better effects if, and the ice sheet that the heat that paster produces is accelerated between chassis and heat exchanger by heat radiation melts, further improve ice and defrost effect.Chassis, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that the chassis of air-conditioner outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
Further, based on the second embodiment of above-mentioned air conditioner controlling device, described temperature collecting cell 101, also for when described air-conditioner runs heating mode, controls described first temperature sensor and detects heat exchange temperature;
Described comparing unit 102, also for the heat exchange temperature detected and the 3rd preset temperature being compared;
Described determining unit 103, if also for the heat exchange temperature that detects lower than described 3rd preset temperature, then determine the frosting of described air-conditioner.
Described 3rd preset temperature is used for judging the whether frosting of described heat exchanger when air-conditioner runs heating module, if detect, described heat exchange temperature is lower than described 3rd preset temperature, then determine the frosting of described heat exchanger, if detect, described heat exchange temperature is higher than described 3rd preset temperature, then determine the non-frosting of described heat exchanger.Described 3rd preset temperature is preferably-4 DEG C.
Such as: when detecting described air-conditioner and running heating mode, control described first temperature and pass detection heat exchange temperature, if the heat exchange temperature >-4 DEG C detected, then determine the non-frosting of the heat exchanger of described off-premises station; If the heat exchange temperature <-4 DEG C that continuous 2 minutes detect, then determine the heat exchanger frosting of described off-premises station, when described air-conditioner frosting, control air-conditioner and carry out defrost.
Further, the heat exchange temperature detected and easy frosting temperature range can also be compared, if when the heat exchange temperature detected is in described easy frosting temperature range, judge that described air-conditioner is in easy frosting state, the heating capacity of described air-conditioner declines, while maintenance air-conditioner runs heating mode, control the paster heating of described chassis, the heat of described paster is passed to the copper pipe of heat exchanger by heat exchanger fin, environment temperature temperature around described heat exchanger is raised, thus raising evaporating temperature, make heat exchanger be not easy frosting.Reach and slow down air-conditioner frosting, or prevent the effect of air-conditioner frosting to a certain extent.Described easy frosting temperature range is preferably the temperature range of-1 DEG C to 0 DEG C.
Such as :-1 DEG C of < heat exchange temperature <0 DEG C detected double, or continuous 2 minutes when detecting-1 DEG C of < heat exchange temperature <0 DEG C, judge that described air-conditioner is in easy frosting state, when keeping air-conditioner to run heating mode, control the paster heating of described chassis, when described heat exchange temperature >0 DEG C being detected, controlling described paster power-off and stopping heating.
Heat exchange temperature and the 3rd preset temperature, by detecting heat exchange temperature, are compared and are judged the whether frosting of described air-conditioner by the present embodiment, carry out defrost with the control air-conditioner when described air-conditioner frosting.Further, by heat exchange temperature and the easy frosting temperature range preset are compared, with when monitoring heat exchange temperature and reaching described easy frosting temperature range, control paster heating and prevent heat exchanger frosting, do not hinder the operation of air conditioner heat-production simultaneously.
With reference to the high-level schematic functional block diagram that Fig. 8, Fig. 8 are the 3rd embodiment of air conditioner controlling device of the present invention.Based on the first embodiment of above-mentioned air conditioner controlling device, described air conditioner controlling device also comprises warm-up block 30;
Described warm-up block 30, for when described air-conditioner starts heating mode, controls described paster heating Preset Time with start quickly.
When detecting described air-conditioner and starting heating mode, control the energising of described paster to heat, the heat of described paster is passed to heat exchanger copper pipe by heat exchanger fin, thus raising evaporating temperature, make the temperature in room increase rapidly, control described paster power-off after continuous heating Preset Time and stop heating.Described Preset Time is preferably 10 minutes.
The present embodiment is when air-conditioner startup heats, and heated by the paster on chassis, improve the temperature of heat exchanger copper pipe, thus improve evaporating temperature, make the temperature in room increase rapidly, improve heating efficiency when starting, quickening heats toggle speed.
The present invention further provides a kind of air-conditioner.
With reference to the structural representation that Fig. 9 and Figure 10, Fig. 9 are the off-premises station of air-conditioner of the present invention, Figure 10 is the chassis structure schematic diagram of air-conditioner outdoor unit of the present invention.
A kind of air-conditioner, comprise off-premises station and air conditioner controlling device, described off-premises station comprises heat exchanger 2 and chassis 1, the first temperature sensor for detecting heat exchange temperature is provided with in described heat exchanger 2, the top 15 on described chassis 1 is provided with the second temperature sensor 3 for detecting chassis upper temperature, the bottom 14 on described chassis 1 is provided with the three-temperature sensor 4 for detecting chassis temperature of lower, is provided with the paster 11 for heating in described chassis 1; Described first temperature sensor, described second temperature sensor 3, described three-temperature sensor 4 and described paster 11 are connected with described air conditioner controlling device respectively.
Preferably, in described chassis 1, be provided with power supply terminal 12, to power to described paster 11, in described paster 11, be provided with loop line, with electrified regulation; Also be provided with catch basin in described chassis 1, in order to collect the condensed water of heat exchanger 2, be also provided with osculum 13 in described chassis 1, described osculum 13 is for discharging the condensed water in described catch basin.
By the heat exchange temperature of air-conditioner outdoor unit, chassis upper temperature and the chassis temperature of lower gathered, the present embodiment judges whether defrost terminates air-conditioner, realize heat exchanger by heat collecting exchanger temperature to freeze the monitoring of situation, the monitoring to tray bottom ice sheet situation is realized by chassis temperature of lower, the monitoring to chassis upper and the ice sheet situation between chassis and heat exchanger is realized by chassis upper temperature, bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean after, stop defrost.Ensure that bottom plate of outdoor unit, between chassis and heat exchanger and the frost of heat exchanger all melt clean thoroughly.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or device.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising this key element and also there is other identical element.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, air-conditioner, or the network equipment etc.) perform method described in each embodiment of the present invention.
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 (11)
1. an air-conditioner control method, is characterized in that, described air-conditioner control method comprises the following steps:
Gather the heat exchange temperature of air-conditioner outdoor unit, and judge the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
If the frosting of described air-conditioner, then control described air-conditioner and carry out defrost;
When described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge whether defrost terminates described air-conditioner according to the temperature information gathered;
If described air-conditioner defrost terminates, then control described air-conditioner and stop defrost.
2. air-conditioner control method as claimed in claim 1, it is characterized in that, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor;
Described when described air-conditioner defrost, gather the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judge that the described air-conditioner step whether defrost terminates comprises according to the temperature information gathered:
When described air-conditioner defrost, control described first temperature sensor and detect heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
The heat exchange temperature detected and the first preset temperature are compared, the chassis upper temperature detected and chassis temperature of lower are compared with the second preset temperature respectively;
If the heat exchange temperature detected is higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
3. air-conditioner control method as claimed in claim 1, is characterized in that, if the frosting of described air-conditioner, then controls the step that described air-conditioner carries out defrost and comprises:
If the frosting of described air-conditioner, then control described air-conditioner running refrigerating pattern, and control the paster heating in described bottom plate of outdoor unit;
And, if described air-conditioner defrost terminate, then control described air-conditioner and stop the step of defrost to comprise:
If described air-conditioner defrost terminates, then control described air-conditioner and exit refrigeration mode, and control described paster stopping heating.
4. air-conditioner control method as claimed in claim 2, is characterized in that, the heat exchange temperature of described collection air-conditioner outdoor unit, and judges that the step of described air-conditioner whether frosting comprises according to the heat exchange temperature gathered:
When described air-conditioner runs heating mode, control described first temperature sensor and detect heat exchange temperature;
The heat exchange temperature detected and the 3rd preset temperature are compared;
If the heat exchange temperature detected lower than described 3rd preset temperature, then determines the frosting of described air-conditioner.
5. the air-conditioner control method as described in any one of Claims 1-4, is characterized in that, the heat exchange temperature of described collection air-conditioner outdoor unit, and judge the step of described air-conditioner whether frosting according to the heat exchange temperature gathered before, also comprises:
When described air-conditioner starts heating mode, control described paster heating Preset Time with start quickly.
6. an air conditioner controlling device, is characterized in that, described air conditioner controlling device comprises:
Judge module, for gathering the heat exchange temperature of air-conditioner outdoor unit, and judges the whether frosting of described air-conditioner according to the heat exchange temperature gathered;
Control module, if for described air-conditioner frosting, then controls described air-conditioner and carries out defrost;
Described judge module, also for when described air-conditioner defrost, gathers the heat exchange temperature of described off-premises station, chassis upper temperature and chassis temperature of lower, and judges whether defrost terminates described air-conditioner according to the temperature information gathered;
Described control module, if also terminate for described air-conditioner defrost, then controls described air-conditioner and stops defrost.
7. air conditioner controlling device as claimed in claim 6, it is characterized in that, be provided with the first temperature sensor in the heat exchanger of described off-premises station, the chassis upper of described off-premises station is provided with the second temperature sensor, and the bottom, chassis of described off-premises station is provided with three-temperature sensor;
Described judge module comprises temperature collecting cell, comparing unit and determining unit;
Described temperature collecting cell, for when described air-conditioner defrost, controls described first temperature sensor and detects heat exchange temperature, control described second temperature sensor and detect chassis upper temperature, control described three-temperature sensor and detect chassis temperature of lower;
Described comparing unit, for the heat exchange temperature detected and the first preset temperature being compared, compares with the second preset temperature respectively by the chassis upper temperature detected and chassis temperature of lower;
Described determining unit, if for the heat exchange temperature that detects higher than described first preset temperature, and the chassis upper temperature detected and chassis temperature of lower are all higher than described second preset temperature, then determine that described air-conditioner defrost terminates.
8. air conditioner controlling device as claimed in claim 6, is characterized in that, described control module, if also for described air-conditioner frosting, then controls described air-conditioner running refrigerating pattern, and controls the paster heating in described bottom plate of outdoor unit;
Described control module, if also terminate for described air-conditioner defrost, then controls described air-conditioner and exits refrigeration mode, and controls described paster stopping heating.
9. air conditioner controlling device as claimed in claim 7, is characterized in that, described temperature collecting cell, also for when described air-conditioner runs heating mode, controls described first temperature sensor and detects heat exchange temperature;
Described comparing unit, also for the heat exchange temperature detected and the 3rd preset temperature being compared;
Described determining unit, if also for the heat exchange temperature that detects lower than described 3rd preset temperature, then determine the frosting of described air-conditioner.
10. the air conditioner controlling device as described in any one of claim 6 to 9, is characterized in that, described air conditioner controlling device also comprises warm-up block;
Described warm-up block, for when described air-conditioner starts heating mode, controls described paster heating Preset Time with start quickly.
11. 1 kinds of air-conditioners, it is characterized in that, described air-conditioner comprises off-premises station and the air conditioner controlling device as described in any one of claim 6 to 10, described off-premises station comprises heat exchanger and chassis, the first temperature sensor for detecting heat exchange temperature is provided with in described heat exchanger, described chassis upper is provided with the second temperature sensor for detecting chassis upper temperature, bottom, described chassis is provided with the three-temperature sensor for detecting chassis temperature of lower, is provided with the paster for heating in described chassis; Described first temperature sensor, described second temperature sensor, described three-temperature sensor and described paster are connected with described air conditioner controlling device respectively.
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| WO2022267493A1 (en) * | 2021-06-23 | 2022-12-29 | 美的集团股份有限公司 | Air conditioner indoor unit, air conditioner and control method and device therefor, and readable storage medium |
| CN113375291A (en) * | 2021-06-25 | 2021-09-10 | 宁波奥克斯电气股份有限公司 | Defrosting control method for air conditioner |
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