CN106288243A - The defrosting control method of air-conditioner and device - Google Patents
The defrosting control method of air-conditioner and device Download PDFInfo
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- CN106288243A CN106288243A CN201610915879.1A CN201610915879A CN106288243A CN 106288243 A CN106288243 A CN 106288243A CN 201610915879 A CN201610915879 A CN 201610915879A CN 106288243 A CN106288243 A CN 106288243A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Fuzzy Systems (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the defrosting control method of a kind of air-conditioner, the defrosting control method of described air-conditioner comprises the following steps: detection heat exchanger coolant pressure；Heat exchanger coolant pressure according to detection obtains corresponding saturation temperature；Obtain ambient dew point temperature；In corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, control air-conditioner and enter defrosting mode.The defrosting that the invention also discloses a kind of air-conditioner controls device.The present invention can guarantee that frost in time defrosting, it is to avoid frostless defrost, reduces energy consumption, extends air-conditioning service life.
Description
Technical field
The invention mainly relates to air-conditioning technical field, specifically, relate to defrosting control method and the dress of a kind of air-conditioner
Put.
Background technology
Along with the raising of people's living standard, the kind of household electrical appliance gets more and more.Wherein air-conditioner is during people live
One of requisite household electrical appliance, but existing air-conditioner is operationally, is often accompanied by heat exchanger frost.Heat exchanger
Once frosting i.e. can reduce the heat exchange efficiency of air-conditioner, hinders the lifting of air conditioner heat-production ability.In order to solve air-conditioner frosting
After ability attenuation problem, air-conditioner needs to be switched to defrosting mode, but on the one hand defrosting sacrifices air-conditioner the most frequently
Heating capacity, expends relatively multi-energy for Defrost operation.
Summary of the invention
The main object of the present invention is to provide defrosting control method and the device of a kind of air-conditioner, it is intended to solve prior art
The numerous defrosting of hollow frequency modulation, expends the defect of relatively multi-energy.
For achieving the above object, the defrosting control method of the air-conditioner that the present invention proposes comprises the following steps:
Detection heat exchanger coolant pressure；
Heat exchanger coolant pressure according to detection obtains corresponding saturation temperature；
Obtain ambient dew point temperature；
In corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, control air-conditioner and enter defrosting mould
Formula.
The described heat exchanger coolant pressure according to detection obtain corresponding saturation temperature particularly as follows:
Heat exchanger coolant pressure according to detection is inquired about or is calculated the saturation temperature of correspondence.
Preferably, the step of described acquisition ambient dew point temperature includes:
Detection ambient temperature and ambient wet bulb temperature；
Ambient temperature and ambient wet bulb temperature according to detection by inquiry or are calculated corresponding ambient dew point temperature.
Preferably, the described ambient temperature according to detection and ambient wet bulb temperature by inquiry or are calculated corresponding ring
Also include after the dew point temperature of border:
Ambient temperature and ambient wet bulb temperature inquiry according to detection obtain corresponding frosting critical temperature；
When ambient dew point temperature is less than or equal to frosting critical temperature, perform described to judge that corresponding saturation temperature is the least
In 0 DEG C, and less than or equal to ambient dew point temperature.
Preferably, the described saturation temperature in correspondence is less than 0 DEG C, and during less than or equal to ambient dew point temperature, controls air-conditioning
Device enters the step of defrosting mode and includes:
In corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, determine that air-conditioner starts frosting；
Accumulative air-conditioner heat pamp；
When air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enter defrosting mode.
Additionally, for achieving the above object, the present invention also provides for the defrosting of a kind of air-conditioner and controls device, described air-conditioner
Defrosting controls device and includes:
First detection module, is used for detecting heat exchanger coolant pressure；
Acquisition module, obtains corresponding saturation temperature for the heat exchanger coolant pressure according to detection；
Described acquisition module, is additionally operable to obtain ambient dew point temperature；
Control module, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature, controls sky
Device is adjusted to enter defrosting mode.
Preferably, described acquisition module specifically for the heat exchanger coolant pressure inquiry according to detection or is calculated correspondence
Saturation temperature.
Preferably, described air conditioner defrosting device also includes the second detection module, is used for detecting ambient temperature and ambient wet bulb
Temperature；
Described acquisition module or calculates by inquiry also particularly useful for the ambient temperature according to detection and ambient wet bulb temperature
Obtain the ambient dew point temperature of correspondence.
Preferably, described acquisition module is additionally operable to the ambient temperature according to detection and ambient wet bulb temperature is obtained by inquiry
Corresponding frosting critical temperature；
The defrosting of described air-conditioner controls device and also includes performing module, for being less than or equal to frosting in ambient dew point temperature
During critical temperature, perform whether the described saturation temperature judging correspondence is less than 0 DEG C, and less than or equal to ambient dew point temperature.
Preferably, described control module includes:
Frosting determines unit, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature, really
Determine air-conditioner and start frosting；
Accumulated time unit, is used for adding up air-conditioner heat pamp；
Control unit, for when air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enters defrosting mode.
The present invention is by detection heat exchanger coolant pressure, and obtains and heat exchanger coolant pressure according to heat exchanger coolant pressure
Corresponding saturation temperature；The ambient dew point temperature of corresponding saturation temperature and acquisition is compared, little in corresponding saturation temperature
In 0 DEG C, and less than or equal in the case of ambient dew point temperature, control air-conditioner and enter defrosting mode, thus ensure that air-conditioner has
Frost in time defrosting, it is to avoid frostless defrost, reduces energy consumption, extends air-conditioner service life.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the defrosting control method first embodiment of air-conditioner of the present invention；
Fig. 2 is the schematic flow sheet of defrosting control method second embodiment of air-conditioner of the present invention；
Fig. 3 is the schematic flow sheet of defrosting control method the 3rd embodiment of air-conditioner of the present invention；
Fig. 4 be air-conditioner of the present invention defrosting control method in the refinement schematic flow sheet of step S40；
Fig. 5 is the high-level schematic functional block diagram of the defrosting control device first embodiment of air-conditioner of the present invention；
Fig. 6 is the high-level schematic functional block diagram of defrosting control device second embodiment of air-conditioner of the present invention；
Fig. 7 is the high-level schematic functional block diagram of defrosting control device the 3rd embodiment of air-conditioner of the present invention；
Fig. 8 is that the defrosting of air-conditioner of the present invention controls the refinement high-level schematic functional block diagram of control module in device.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides the defrosting control method of a kind of air-conditioner, with reference to Fig. 1, in one embodiment, removing of this air-conditioner
Frost control method includes:
Step S10, detects heat exchanger coolant pressure；
The heat exchanger of air-conditioner includes indoor heat exchanger and outdoor heat exchanger, and during refrigerating operaton, outdoor heat exchanger is as cold
Condenser plays condensation, and indoor heat exchanger plays evaporation as vaporizer；During heating operation, outdoor heat exchanger is as vaporizer
Playing evaporation, indoor heat exchanger plays condensation as condenser.Indoor set need to be defrosted during refrigeration, detect indoor heat exchanger
Coolant pressure, need to defrost to off-premises station when heating, sensing chamber's external heat exchanger coolant pressure.Specifically, because heat exchanger pressure drop is little,
One of them of available pressure sensor heat exchanger entrance coolant pressure, outlet coolant pressure and middle coolant pressure is examined
Survey.
Step S20, obtains corresponding saturation temperature according to the heat exchanger coolant pressure of detection；
Saturation temperature refers to the temperature that liquid and steam are had when being in the i.e. saturation of dynamic balance state.Saturated shape
During state, the temperature of liquid and steam is equal.Saturation temperature one timing, saturation pressure is the most certain；Otherwise, saturation pressure one timing,
Saturation temperature is the most certain.Pressure raises, and can form new dynamic balance state at a temperature of new.According to reality in the present embodiment
The heat exchanger coolant pressure detected obtains corresponding saturation temperature.Relative to the temperature of directly detection heat exchanger, heat exchanger
Coolant pressure is affected less by ambient temperature, so getting corresponding by the coolant pressure of detection heat exchanger
Saturation temperature, obtained temperature value is the most accurate, and this saturation temperature and heat exchange temperature are closer to, this saturation temperature available
Heat exchange temperature is replaced to judge.Concrete, when air conditioner refrigerating runs, according to the indoor heat exchanger coolant pressure detected
Obtain indoor corresponding saturation temperature；When air-conditioning heating runs, obtain outdoor according to the outdoor heat exchanger coolant pressure detected
Corresponding saturation temperature.
Step S30, obtains ambient dew point temperature；
Ambient dew point temperature refers to air temperature under the conditions of moisture content and air pressure are the most immovable, when being cooled to saturated
Degree, i.e. steam in air become temperature during dewdrop.When in air, steam reaches saturated, temperature and ambient dew point temperature
Spend identical；When steam is not up to saturated, temperature is higher than ambient dew point temperature, and what temperature dropped to that dew point the following is condensation vapor must
Want condition.The present embodiment obtains the ambient dew point temperature of current environment, to judge whether steam possesses the condition of condensation.Specifically
, when air conditioner refrigerating runs, obtain indoor environment dew point temperature；When air-conditioning heating runs, corresponding acquisition outdoor environment dew point
Temperature.
Step S40, in corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, controls air-conditioner and enters
Enter defrosting mode.
After getting saturation temperature and ambient dew point temperature, value between the two is compared, also need to judge simultaneously
Saturation temperature, whether less than 0 DEG C, only when saturation temperature is less than 0 DEG C, simultaneously less than or equal to ambient dew point temperature, illustrates that air-conditioning changes
There is frost in hot device, controls air-conditioning and enters defrosting mode.Otherwise control air-conditioning properly functioning, it is ensured that air-conditioner has frost in time
Defrosting, it is to avoid frostless defrost, reduces energy consumption, extends air-conditioning service life.
It should be noted that in embodiments of the invention, the described heat exchanger coolant pressure according to detection obtains corresponding
Saturation temperature is particularly as follows: inquire about according to the heat exchanger coolant pressure of detection or be calculated the saturation temperature of correspondence.
Understanding according to above-mentioned, different force value, corresponding saturation temperature is the most different, and according to the change of force value, meeting exists
New liquid and vapor equilibrium is formed at a temperature of Xin.The present embodiment first sets multiple heat exchanger coolant pressure corresponding
Saturation temperature, according to the saturation temperature value that the heat exchanger coolant pressure browse queries detected is corresponding when needing；Can also set
Put the corresponding formula of pressure and saturation temperature, calculate the saturation temperature of correspondence according to the heat exchanger coolant piezometer detected.
Further, with reference to Fig. 2, defrosting control method first embodiment based on air-conditioner of the present invention, at present invention sky
Adjusting in defrosting control method second embodiment of device, above-mentioned steps S30 includes:
Step S31, detection ambient temperature and ambient wet bulb temperature；
Step S32, ambient temperature and ambient wet bulb temperature according to detection by inquiry or are calculated corresponding environment
Dew point temperature.
In the present embodiment, wet bulb temperature refers under equal enthalpy air condition, sky when water vapor in air reaches saturated
Temperature.The content of water vapor in air is relevant to temperature, and it is right to be obtained by the ambient temperature detected and ambient wet bulb temperature
The ambient dew point temperature answered.Specifically, preset the ambient dew point temperature that multiple ambient temperatures are corresponding with ambient wet bulb temperature, need
Time according to the ambient temperature the detected ambient dew point temperature corresponding with ambient wet bulb temperature browse queries；Ring can also be set
The corresponding formula of border temperature, ambient wet bulb temperature and ambient dew point temperature, according to the ambient temperature detected and ambient wet bulb temperature
Degree calculates the ambient dew point temperature of correspondence.When air conditioner refrigerating runs, detection indoor environment temperature and indoor environment wet bulb temperature,
Indoor environment temperature and indoor environment wet bulb temperature according to detection by inquiry or are calculated corresponding indoor environment dew point
Temperature；When air-conditioning heating runs, detection outdoor environment temperature and outdoor environment wet bulb temperature, according to the outdoor environment temperature of detection
By inquiry or it is calculated corresponding outdoor environment dew point temperature with outdoor environment wet bulb temperature.
Further, with reference to Fig. 3, defrosting control method the second embodiment based on air-conditioner of the present invention, at present invention sky
Adjust in defrosting control method the 3rd embodiment of device, also include after above-mentioned steps S32:
Step S33, ambient temperature and ambient wet bulb temperature inquiry according to detection obtain corresponding frosting critical temperature；
Step S34, when ambient dew point temperature is less than or equal to frosting critical temperature, performs the described saturated temperature judging correspondence
Whether degree is less than 0 DEG C, and is less than or equal to ambient dew point temperature.
In the present embodiment, by inquiry or it is calculated correspondence in the ambient temperature according to detection and ambient wet bulb temperature
Ambient dew point temperature after, always according to the two temperature value inquiry obtain correspondence frosting critical temperature.Specifically, default many
The frosting critical temperature that individual ambient temperature is corresponding with ambient wet bulb temperature, according to the ambient temperature detected and environmental wet when needing
The frosting critical temperature that bulb temperature browse queries is corresponding.When air conditioner refrigerating runs, detection indoor environment temperature and indoor environment are wet
Bulb temperature, critical according to the indoor frosting that indoor environment temperature and the indoor environment wet bulb temperature of detection obtain correspondence by inquiry
Temperature；When air-conditioning heating runs, detection outdoor environment temperature and outdoor environment wet bulb temperature, according to the outdoor environment temperature of detection
Corresponding outdoor frosting critical temperature is obtained by inquiry with outdoor environment wet bulb temperature.Face less than frosting in ambient dew point temperature
Boundary's temperature, illustrates to reach frosting condition, further performs saturation temperature and the judgement of ambient dew point temperature level.
Further, with reference to Fig. 4, as a preferred reality of step S40 in the defrosting control method of air-conditioner of the present invention
Executing example, above-mentioned steps S40 includes:
Step S41, in corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, determines that air-conditioner is opened
Beginning frosting；
Step S42, accumulative air-conditioner heat pamp；
Step S43, when air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enters defrosting mode.
In the present embodiment, it is previously provided with Preset Time, when saturation temperature is less than 0 DEG C, and less than or equal to ambient dew point temperature
When spending, illustrate that air device starts frosting, carry out heat pamp and add up, and accumulative heat pamp is judged, when frosting
Between more than Preset Time time, illustrate that frosting reaches certain thickness, just control air-conditioner entrance defrosting mode defrost, it is to avoid one
Frosting begins to the situation of defrosting, saves energy consumption, extends air-conditioning service life.
The present invention also provides for the defrosting of a kind of air-conditioner and controls device, and with reference to Fig. 5, in one embodiment, the present invention provides
Air-conditioner defrosting control device include:
First detection module 10, is used for detecting heat exchanger coolant pressure；
The heat exchanger of air-conditioner includes indoor heat exchanger and outdoor heat exchanger, and during refrigerating operaton, outdoor heat exchanger is as cold
Condenser plays condensation, and indoor heat exchanger plays evaporation as vaporizer；During heating operation, outdoor heat exchanger is as vaporizer
Playing evaporation, indoor heat exchanger plays condensation as condenser.Indoor set need to be defrosted during refrigeration, detect indoor heat exchanger
Coolant pressure, need to defrost to off-premises station when heating, sensing chamber's external heat exchanger coolant pressure.Specifically, because heat exchanger pressure drop is little,
One of them of available pressure sensor heat exchanger entrance coolant pressure, outlet coolant pressure and middle coolant pressure is examined
Survey.
Acquisition module 20, obtains corresponding saturation temperature for the heat exchanger coolant pressure according to detection；
Saturation temperature refers to the temperature that liquid and steam are had when being in the i.e. saturation of dynamic balance state.Saturated shape
During state, the temperature of liquid and steam is equal.Saturation temperature one timing, saturation pressure is the most certain；Otherwise, saturation pressure one timing,
Saturation temperature is the most certain.Pressure raises, and can form new dynamic balance state at a temperature of new.According to reality in the present embodiment
The heat exchanger coolant pressure detected obtains corresponding saturation temperature.Relative to the temperature of directly detection heat exchanger, heat exchanger
Coolant pressure is affected less by ambient temperature, so getting corresponding by the coolant pressure of detection heat exchanger
Saturation temperature, obtained temperature value is the most accurate, and this saturation temperature and heat exchange temperature are closer to, this saturation temperature available
Heat exchange temperature is replaced to judge.Concrete, when air conditioner refrigerating runs, according to the indoor heat exchanger coolant pressure detected
Obtain indoor corresponding saturation temperature；When air-conditioning heating runs, obtain outdoor according to the outdoor heat exchanger coolant pressure detected
Corresponding saturation temperature.
Described acquisition module 20, is additionally operable to obtain ambient dew point temperature；
Ambient dew point temperature refers to air temperature under the conditions of moisture content and air pressure are the most immovable, when being cooled to saturated
Degree, i.e. steam in air become temperature during dewdrop.When in air, steam reaches saturated, temperature and ambient dew point temperature
Spend identical；When steam is not up to saturated, temperature is higher than ambient dew point temperature, and what temperature dropped to that dew point the following is condensation vapor must
Want condition.The present embodiment obtains the ambient dew point temperature of current environment, to judge whether steam possesses the condition of condensation.Specifically
, when air conditioner refrigerating runs, obtain indoor environment dew point temperature；When air-conditioning heating runs, corresponding acquisition outdoor environment dew point
Temperature.
Control module 30, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature, controls
Air-conditioner enters defrosting mode.
After getting saturation temperature and ambient dew point temperature, value between the two is compared, also need to judge simultaneously
Saturation temperature, whether less than 0 DEG C, only when saturation temperature is less than 0 DEG C, simultaneously less than or equal to ambient dew point temperature, illustrates that air-conditioning changes
There is frost in hot device, controls air-conditioning and enters defrosting mode.Otherwise control air-conditioning properly functioning, it is ensured that air-conditioner has frost in time
Defrosting, it is to avoid frostless defrost, reduces energy consumption, extends air-conditioning service life.
It should be noted that in embodiments of the invention, described acquisition module 20 is specifically for the heat exchanger according to detection
Coolant pressure is inquired about or is calculated the saturation temperature of correspondence.
Understanding according to above-mentioned, different force value, corresponding saturation temperature is the most different, and according to the change of force value, meeting exists
New liquid and vapor equilibrium is formed at a temperature of Xin.The present embodiment first sets multiple heat exchanger coolant pressure corresponding
Saturation temperature, according to the saturation temperature value that the heat exchanger coolant pressure browse queries detected is corresponding when needing；Can also set
Put the corresponding formula of pressure and saturation temperature, calculate the saturation temperature of correspondence according to the heat exchanger coolant piezometer detected.
Further, with reference to Fig. 6, defrosting based on air-conditioner of the present invention controls device the second embodiment, in the present invention
The defrosting of air-conditioner controls in device the 3rd embodiment, and the defrosting of described air-conditioner controls device and also includes the second detection module
40, it is used for detecting ambient temperature and ambient wet bulb temperature；
Described acquisition module 20 or is counted by inquiry also particularly useful for the ambient temperature according to detection and ambient wet bulb temperature
Calculate the ambient dew point temperature obtaining correspondence.
In the present embodiment, wet bulb temperature refers under equal enthalpy air condition, sky when water vapor in air reaches saturated
Temperature.The content of water vapor in air is relevant to temperature, and it is right to be obtained by the ambient temperature detected and ambient wet bulb temperature
The ambient dew point temperature answered.Specifically, preset the ambient dew point temperature that multiple ambient temperatures are corresponding with ambient wet bulb temperature, need
Time according to the ambient temperature the detected ambient dew point temperature corresponding with ambient wet bulb temperature browse queries；Ring can also be set
The corresponding formula of border temperature, ambient wet bulb temperature and ambient dew point temperature, according to the ambient temperature detected and ambient wet bulb temperature
Degree calculates the ambient dew point temperature of correspondence.When air conditioner refrigerating runs, detection indoor environment temperature and indoor environment wet bulb temperature,
Indoor environment temperature and indoor environment wet bulb temperature according to detection by inquiry or are calculated corresponding indoor environment dew point
Temperature；When air-conditioning heating runs, detection outdoor environment temperature and outdoor environment wet bulb temperature, according to the outdoor environment temperature of detection
By inquiry or it is calculated corresponding outdoor environment dew point temperature with outdoor environment wet bulb temperature.
Further, with reference to Fig. 7, defrosting based on air-conditioner of the present invention controls device the second embodiment, empty in the present invention
The defrosting adjusting device controls in device the 3rd embodiment, and described acquisition module 20 is additionally operable to the ambient temperature according to detection and environmental wet
Bulb temperature obtains the frosting critical temperature of correspondence by inquiry；
The defrosting of described air-conditioner controls device and also includes performing module 50, for being less than or equal to knot in ambient dew point temperature
During frost critical temperature, perform whether the described saturation temperature judging correspondence is less than 0 DEG C, and less than or equal to ambient dew point temperature.
In the present embodiment, by inquiry or it is calculated correspondence in the ambient temperature according to detection and ambient wet bulb temperature
Ambient dew point temperature after, always according to the two temperature value inquiry obtain correspondence frosting critical temperature.Specifically, default many
The frosting critical temperature that individual ambient temperature is corresponding with ambient wet bulb temperature, according to the ambient temperature detected and environmental wet when needing
The frosting critical temperature that bulb temperature browse queries is corresponding.When air conditioner refrigerating runs, detection indoor environment temperature and indoor environment are wet
Bulb temperature, critical according to the indoor frosting that indoor environment temperature and the indoor environment wet bulb temperature of detection obtain correspondence by inquiry
Temperature；When air-conditioning heating runs, detection outdoor environment temperature and outdoor environment wet bulb temperature, according to the outdoor environment temperature of detection
Corresponding outdoor frosting critical temperature is obtained by inquiry with outdoor environment wet bulb temperature.Face less than frosting in ambient dew point temperature
Boundary's temperature, illustrates to reach frosting condition, further performs saturation temperature and the judgement of ambient dew point temperature level.
Further, with reference to Fig. 8, the defrosting of air-conditioner of the present invention controls the control module 30 of device and includes:
Frosting determines unit 31, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature,
Determine that air-conditioner starts frosting；
Accumulated time unit 32, is used for adding up air-conditioner heat pamp；
Control unit 33, for when air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enters defrosting mode.
In the present embodiment, it is previously provided with Preset Time, when saturation temperature is less than 0 DEG C, and less than or equal to ambient dew point temperature
When spending, illustrate that air device starts frosting, carry out heat pamp and add up, and accumulative heat pamp is judged, when frosting
Between more than Preset Time time, illustrate that frosting reaches certain thickness, just control air-conditioner entrance defrosting mode defrost, it is to avoid one
Frosting begins to the situation of defrosting, saves energy consumption, extends air-conditioning service life.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the defrosting control method of an air-conditioner, it is characterised in that the defrosting control method of described air-conditioner includes following step
Rapid:
Detection heat exchanger coolant pressure；
Heat exchanger coolant pressure according to detection obtains corresponding saturation temperature；
Obtain ambient dew point temperature；
In corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, control air-conditioner and enter defrosting mode.
2. the defrosting control method of air-conditioner as claimed in claim 1, it is characterised in that the described heat exchanger according to detection is cold
Matchmaker's pressure obtain corresponding saturation temperature particularly as follows:
Heat exchanger coolant pressure according to detection is inquired about or is calculated the saturation temperature of correspondence.
3. the defrosting control method of air-conditioner as claimed in claim 1, it is characterised in that described acquisition ambient dew point temperature
Step includes:
Detection ambient temperature and ambient wet bulb temperature；
Ambient temperature and ambient wet bulb temperature according to detection by inquiry or are calculated corresponding ambient dew point temperature.
4. the defrosting control method of air-conditioner as claimed in claim 3, it is characterised in that the described ambient temperature according to detection
With ambient wet bulb temperature by also including after inquiring about or being calculated corresponding ambient dew point temperature:
Ambient temperature and ambient wet bulb temperature inquiry according to detection obtain corresponding frosting critical temperature；
When ambient dew point temperature is less than or equal to frosting critical temperature, perform whether the described saturation temperature judging correspondence is less than 0
DEG C, and less than or equal to ambient dew point temperature.
5. the defrosting control method of the air-conditioner as described in any one of claim 1-4, it is characterised in that described satisfying in correspondence
With temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, the step controlling air-conditioner entrance defrosting mode includes:
In corresponding saturation temperature less than 0 DEG C, and during less than or equal to ambient dew point temperature, determine that air-conditioner starts frosting；
Accumulative air-conditioner heat pamp；
When air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enter defrosting mode.
6. the defrosting of an air-conditioner controls device, it is characterised in that the defrosting of described air-conditioner controls device and includes:
First detection module, is used for detecting heat exchanger coolant pressure；
Acquisition module, obtains corresponding saturation temperature for the heat exchanger coolant pressure according to detection；
Described acquisition module, is additionally operable to obtain ambient dew point temperature；
Control module, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature, controls air-conditioner
Enter defrosting mode.
7. the defrosting of air-conditioner as claimed in claim 6 controls device, it is characterised in that described acquisition module is specifically for root
Inquire about according to the heat exchanger coolant pressure of detection or be calculated the saturation temperature of correspondence.
8. the defrosting of air-conditioner as claimed in claim 7 controls device, it is characterised in that the defrosting of described air-conditioner controls dress
Put and also include:
Second detection module, is used for detecting ambient temperature and ambient wet bulb temperature；
Described acquisition module or is calculated by inquiry also particularly useful for the ambient temperature according to detection and ambient wet bulb temperature
Corresponding ambient dew point temperature.
9. the defrosting of air-conditioner as claimed in claim 7 controls device, it is characterised in that:
Described acquisition module is additionally operable to the ambient temperature according to detection and ambient wet bulb temperature and is obtained the frosting of correspondence by inquiry
Critical temperature；
The defrosting of described air-conditioner controls device and also includes:
Perform module, for when ambient dew point temperature is less than or equal to frosting critical temperature, perform the saturated of described judgement correspondence
Whether temperature is less than 0 DEG C, and is less than or equal to ambient dew point temperature.
10. the defrosting of the air-conditioner as described in any one of claim 6-9 controls device, it is characterised in that described control module
Including:
Frosting determines unit, for being less than 0 DEG C in corresponding saturation temperature, and during less than or equal to ambient dew point temperature, determines sky
Device is adjusted to start frosting；
Accumulated time unit, is used for adding up air-conditioner heat pamp；
Control unit, for when air-conditioner heat pamp is more than Preset Time, controls air-conditioner and enters defrosting mode.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915879.1A CN106288243A (en) | 2016-10-20 | 2016-10-20 | The defrosting control method of air-conditioner and device |
| PCT/CN2017/106842 WO2018072727A1 (en) | 2016-10-20 | 2017-10-19 | Method and device for defrosting air conditioner |
| EP17861512.6A EP3531045A4 (en) | 2016-10-20 | 2017-10-19 | Method and device for defrosting air conditioner |
| US16/387,358 US20190242604A1 (en) | 2016-10-20 | 2019-04-17 | Method and device for defrosting air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915879.1A CN106288243A (en) | 2016-10-20 | 2016-10-20 | The defrosting control method of air-conditioner and device |
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| Publication Number | Publication Date |
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| CN106288243A true CN106288243A (en) | 2017-01-04 |
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| CN201610915879.1A Pending CN106288243A (en) | 2016-10-20 | 2016-10-20 | The defrosting control method of air-conditioner and device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084499A (en) * | 2017-05-17 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107120798A (en) * | 2017-05-17 | 2017-09-01 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| WO2018072727A1 (en) * | 2016-10-20 | 2018-04-26 | 广东美的暖通设备有限公司 | Method and device for defrosting air conditioner |
| CN107990481A (en) * | 2017-10-27 | 2018-05-04 | 珠海格力电器股份有限公司 | Air-conditioner defrosting control method and device |
| CN108679781A (en) * | 2018-05-03 | 2018-10-19 | 珠海格力电器股份有限公司 | A kind of air-conditioner defrosting control method, device, storage medium and air-conditioning |
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| CN113154659A (en) * | 2021-05-08 | 2021-07-23 | 合肥美的暖通设备有限公司 | Evaporator state detection method and device, air conditioning equipment and storage medium |
| CN113757919A (en) * | 2021-08-23 | 2021-12-07 | 宁波奥克斯电气股份有限公司 | Compressor output control method and device of air conditioner and air conditioner |
| CN114659234A (en) * | 2022-02-28 | 2022-06-24 | 青岛海尔空调电子有限公司 | Method and device for defrosting of air conditioner and air conditioner |
| US11788758B2 (en) | 2018-12-27 | 2023-10-17 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner, and control method and device for heating system thereof |
| WO2023246027A1 (en) * | 2022-06-21 | 2023-12-28 | 珠海格力电器股份有限公司 | Defrosting control method and device, and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008070013A (en) * | 2006-09-13 | 2008-03-27 | Mitsubishi Electric Corp | Heat pump device and heat-pump water heater |
| CN102519190A (en) * | 2011-12-31 | 2012-06-27 | 青岛海尔空调电子有限公司 | Air cooling unit defrosting control method and system |
| CN103591669A (en) * | 2013-10-18 | 2014-02-19 | 广东美的制冷设备有限公司 | Air-conditioner equipment and anti-frosting method and anti-frosting device for air-conditioner equipment |
| CN103836857A (en) * | 2012-11-26 | 2014-06-04 | 浙江盾安人工环境股份有限公司 | Defrosting method of air conditioner |
| CN204535178U (en) * | 2015-03-18 | 2015-08-05 | 南京天加空调设备有限公司 | A kind of air cooling module unit that accurately can enter defrosting mode |
| CN105987484A (en) * | 2015-02-28 | 2016-10-05 | 青岛海尔空调器有限总公司 | Defrosting control method and system used during heating frequent high-temperature prevention protection of air conditioner |
-
2016
- 2016-10-20 CN CN201610915879.1A patent/CN106288243A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008070013A (en) * | 2006-09-13 | 2008-03-27 | Mitsubishi Electric Corp | Heat pump device and heat-pump water heater |
| CN102519190A (en) * | 2011-12-31 | 2012-06-27 | 青岛海尔空调电子有限公司 | Air cooling unit defrosting control method and system |
| CN103836857A (en) * | 2012-11-26 | 2014-06-04 | 浙江盾安人工环境股份有限公司 | Defrosting method of air conditioner |
| CN103591669A (en) * | 2013-10-18 | 2014-02-19 | 广东美的制冷设备有限公司 | Air-conditioner equipment and anti-frosting method and anti-frosting device for air-conditioner equipment |
| CN105987484A (en) * | 2015-02-28 | 2016-10-05 | 青岛海尔空调器有限总公司 | Defrosting control method and system used during heating frequent high-temperature prevention protection of air conditioner |
| CN204535178U (en) * | 2015-03-18 | 2015-08-05 | 南京天加空调设备有限公司 | A kind of air cooling module unit that accurately can enter defrosting mode |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072727A1 (en) * | 2016-10-20 | 2018-04-26 | 广东美的暖通设备有限公司 | Method and device for defrosting air conditioner |
| CN107084499A (en) * | 2017-05-17 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107120798A (en) * | 2017-05-17 | 2017-09-01 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107990481A (en) * | 2017-10-27 | 2018-05-04 | 珠海格力电器股份有限公司 | Air-conditioner defrosting control method and device |
| CN108679781A (en) * | 2018-05-03 | 2018-10-19 | 珠海格力电器股份有限公司 | A kind of air-conditioner defrosting control method, device, storage medium and air-conditioning |
| CN109236625A (en) * | 2018-08-30 | 2019-01-18 | 珠海格力电器股份有限公司 | Compressor control method, device and electrical equipment |
| CN109682017A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method and its device of air conditioner heating system |
| US11788758B2 (en) | 2018-12-27 | 2023-10-17 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner, and control method and device for heating system thereof |
| CN110749134A (en) * | 2019-09-25 | 2020-02-04 | 浙江中广电器股份有限公司 | Heat pump system and defrosting exit judging method thereof |
| CN113154659A (en) * | 2021-05-08 | 2021-07-23 | 合肥美的暖通设备有限公司 | Evaporator state detection method and device, air conditioning equipment and storage medium |
| CN113757919A (en) * | 2021-08-23 | 2021-12-07 | 宁波奥克斯电气股份有限公司 | Compressor output control method and device of air conditioner and air conditioner |
| CN113757919B (en) * | 2021-08-23 | 2022-11-15 | 宁波奥克斯电气股份有限公司 | Compressor output control method and device of air conditioner and air conditioner |
| CN114659234A (en) * | 2022-02-28 | 2022-06-24 | 青岛海尔空调电子有限公司 | Method and device for defrosting of air conditioner and air conditioner |
| CN114659234B (en) * | 2022-02-28 | 2024-02-23 | 青岛海尔空调电子有限公司 | Method and device for defrosting air conditioner and air conditioner |
| WO2023246027A1 (en) * | 2022-06-21 | 2023-12-28 | 珠海格力电器股份有限公司 | Defrosting control method and device, and air conditioner |
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