CN109654664A - Intelligent defrosting method and system based on room heat load and air conditioner - Google Patents
Intelligent defrosting method and system based on room heat load and air conditioner Download PDFInfo
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- CN109654664A CN109654664A CN201811353771.3A CN201811353771A CN109654664A CN 109654664 A CN109654664 A CN 109654664A CN 201811353771 A CN201811353771 A CN 201811353771A CN 109654664 A CN109654664 A CN 109654664A
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- 238000010257 thawing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an intelligent defrosting method and system based on room heat load and an air conditioner, wherein the method comprises the following steps: detecting the temperature of the indoor environment in the heating mode; judging whether the temperature of the indoor environment meets a first preset defrosting condition or not; if yes, entering a first defrosting mode; and if not, determining the defrosting mode by judging the temperature rise amplitude of the temperature of the indoor environment. The technical scheme provided by the invention selects a proper defrosting mode based on the heat load state of the room, and reduces the influence of the temperature reduction of the room.
Description
Technical field
The invention belongs to field of air conditioner control more particularly to a kind of intelligent defrosting method based on room thermic load, it is
System and air conditioner.
Background technique
Air conditioner is the equipment that can be indoor refrigerating/heating, when air conditioner heat-production operation, if outdoor heat exchanger surface
Temperature is outer tube temperature lower than air dew point temperature and the temperature that is below the freezing point, heat exchanger surface then can frosting, and frost layer can reduce sky
Adjust the heating performance of device system, or even damage air-conditioner device, it is therefore necessary to defrosting in time.
The control mode of air-conditioning heating defrost at present is to utilize the heating transformation of ownership cold using hot gas defrost, is not all accounted for
The problems such as thermic load state in room enters, defrost process itself will lead to room temperature decline, blow a cold wind over, if in room temperature
It is bigger to enter defrost influence in the case that degree is not high, so that user is felt that heating effect is bad, and inner ring temperature more lowly enters
Defrost, the raw noise increased risk of evaporating temperature meeting more low-yielding, while defrost switching has not the reliability of compressor, four-way valve
Good influence excessively can frequently shorten the service life of air-conditioning.
Accordingly, it is desirable to provide a kind of intelligent defrosting method, system and air conditioner based on room thermic load is existing to solve
The deficiency of technology.
Summary of the invention
It will lead to room temperature decline to solve air conditioner defrost process in the prior art, blow a cold wind over, so that comfort level
The problem of decline, the present invention provides a kind of intelligent defrosting method, system and air conditioners based on room thermic load.
A kind of intelligent defrosting method based on room thermic load is applied to air conditioner, which comprises
Temperature of the detection in indoor environment under heating mode；
Judge whether the temperature of the indoor environment meets the first default defrost condition；
If satisfied, then entering the first defrost pattern；
If not satisfied, then by judging that the temperature rise amplitude of the temperature of indoor environment determines defrost pattern.
Further, judge whether the temperature of the indoor environment meets the first default defrost condition, comprising:
Whether the difference of the temperature and air conditioner set temperature that judge the indoor environment is less than or equal to the first default temperature
Difference；
If difference is less than or equal to the first fiducial temperature, determine that the temperature of the indoor environment meets the first default defrost item
Part；
If difference is greater than the first fiducial temperature, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
Further, judge whether the temperature of the indoor environment meets the first default defrost condition, further includes:
Judge whether the temperature of the indoor environment is greater than third preset temperature；
If so, into the first defrost pattern；
Otherwise judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
Further, before the temperature rise amplitude by judging the temperature of indoor environment determines defrost pattern, further includes:
Judge whether the current generation is the first defrost stage.
Further, the temperature rise amplitude by judging the temperature of indoor environment determines defrost pattern, comprising:
If the current generation is the first defrost stage, the difference of the temperature and initial indoor environment temperature that judge indoor environment is
It is no to be greater than the 4th preset temperature；
If more than the 4th preset temperature, then judge whether the temperature of indoor environment is greater than the 5th preset temperature；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
Further, judge whether the temperature of indoor environment is greater than the 5th preset temperature, comprising:
If so, into third defrost pattern；
Otherwise, the running frequency of compressor is reduced.
Further, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature, comprising:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
Further, the temperature rise amplitude by judging the temperature of indoor environment determines defrost pattern, further includes:
If the current generation is the non-first defrost stage, the temperature of indoor environment and the difference of initial indoor environment temperature are judged
Whether the 6th preset temperature is greater than；
If so, into third defrost pattern；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
Further, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature, comprising:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
Further, after the running frequency for reducing compressor, further includes:
It is default whether the difference of the surface temperature and the surface temperature before preset duration that judge A/C evaporator is greater than second
Temperature；
If so, into the second defrost pattern；
If it is not, then reducing the running frequency of compressor.
A kind of intelligent defrosting system based on room thermic load is applied to air conditioner, the system comprises:
First detection module, for detecting the temperature for being in indoor environment under heating mode；
First judgment module, for judging whether the temperature of the indoor environment meets the first default defrost condition；
First defrost module meets the first default defrost condition for the temperature when indoor environment, then enters the first defrost
Mode；
Determining module is unsatisfactory for the first default defrost condition for the temperature when indoor environment, then by judging indoor ring
The temperature rise amplitude of the temperature in border determines defrost pattern.
Further, the first judgment module includes:
First judging submodule, for judging whether the difference of temperature and air conditioner set temperature of the indoor environment is small
In or equal to the first fiducial temperature；
First determines submodule, if being less than or equal to the first fiducial temperature for difference, determines the temperature of the indoor environment
Degree meets the first default defrost condition；
Second judgment submodule judges that the surface temperature of A/C evaporator is if being greater than the first fiducial temperature for difference
It is no to be greater than the first preset temperature；
Second determines submodule, if being greater than the first preset temperature for surface temperature, reduces the running frequency of compressor；
Third determines submodule, if being less than or equal to the first preset temperature for surface temperature, enters third defrost mould
Formula.
Further, the first judgment module further include:
Third judging submodule, for judging whether the temperature of the indoor environment is greater than third preset temperature；
4th determines submodule, is greater than third preset temperature for the temperature when the indoor environment, then enters first and change
White mode；
4th judging submodule is less than or equal to third preset temperature for the temperature when the indoor environment and otherwise judges
Whether the surface temperature of A/C evaporator is greater than the first preset temperature；
5th determines submodule, for being greater than the first preset temperature when surface temperature, then reduces the running frequency of compressor；
6th determines submodule, for being less than or equal to the first preset temperature when surface temperature, then enters third defrost mould
Formula.
Further, further includes:
Second judgment module, for judging whether the current generation is the first defrost stage.
Further, the determining module includes:
5th judging submodule judges the temperature of indoor environment and initial if being the first defrost stage for the current generation
Whether the difference of indoor environment temperature is greater than the 4th preset temperature；
6th judging submodule then judges whether the temperature of indoor environment is big for being greater than the 4th preset temperature when difference
In the 5th preset temperature；
7th judging submodule judges the surface of A/C evaporator for being less than or equal to the 4th preset temperature when difference
Whether temperature is greater than the first preset temperature.
Further, the 6th judging submodule, is used for,
If the temperature of indoor environment is greater than the 5th preset temperature, enter third defrost pattern；
If the temperature of indoor environment is less than or equal to the 5th preset temperature, the running frequency of compressor is reduced.
Further, the 7th judging submodule, is used for
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
Further, the determining module further include:
8th judging submodule, if for the current generation be the non-first defrost stage, judge indoor environment temperature and just
Whether the difference of beginning indoor environment temperature is greater than the 6th preset temperature；
7th determines submodule, if being greater than the 6th preset temperature for difference, enters third defrost pattern；
9th judging submodule judges the surface of A/C evaporator for being less than or equal to the 6th preset temperature when difference
Whether temperature is greater than the first preset temperature.
Further, the 9th judging submodule, is used for,
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
Further, further includes:
Tenth judging submodule, the difference of the surface temperature before surface temperature and preset duration for judging A/C evaporator
Whether value is greater than the second preset temperature；
8th determines submodule, if being greater than the second preset temperature for difference, enters the second defrost pattern；
9th determines submodule, if being less than or equal to the second preset temperature for difference, reduces the operation frequency of compressor
Rate.
A kind of air conditioner, including any of the above-described intelligent defrosting system based on room thermic load.
Technical solution provided by the invention has the advantages that compared with the immediate prior art
Technical solution provided by the invention first detects the temperature in indoor environment under heating mode, then judges indoor ring
Whether the temperature in border meets the first default defrost condition, and the first defrost pattern is entered when meeting, and is unsatisfactory for then by judging room
The temperature rise amplitude of the temperature of interior environment determines defrost pattern.Technical solution provided by the invention enters under suitable environment temperature
Defrost reduces the influence of creeping chill；Based on room thermic load state, suitable defrost mode is selected, reduces room temperature decline
It influences.
Detailed description of the invention
Fig. 1 is flow chart of the present invention；
Fig. 2 is the whole control flow chart in the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, it is applied to air conditioner the present invention provides a kind of intelligent defrosting method based on room thermic load,
The described method includes:
Temperature of the detection in indoor environment under heating mode；
Judge whether the temperature of the indoor environment meets the first default defrost condition；
If satisfied, then entering the first defrost pattern；
If not satisfied, then by judging that the temperature rise amplitude of the temperature of indoor environment determines defrost pattern.
In the embodiment of the present application, first detection is in the temperature of indoor environment under heating mode, then judges indoor environment
Temperature whether meet the first default defrost condition, the first defrost pattern is entered when meeting, is unsatisfactory for then indoor by judgement
The temperature rise amplitude of the temperature of environment determines defrost pattern.
The present invention enters defrost under suitable environment temperature, reduces the influence of creeping chill.Based on room thermic load state, choosing
Suitable defrost mode is selected, the influence of room temperature decline is reduced.Defrost entry condition is selected in conjunction with the state of temperature in room, together
When be able to satisfy the operational reliability after frosting；State is maintained using room temperature rise and thermic load, judges room enclosed structure state,
Select suitable defrost mode.The present invention enters defrost under suitable environment temperature, reduces the influence of creeping chill；Based on room heat
Load condition selects suitable defrost mode, reduces the influence of room temperature decline.
In some embodiments of the present application, judge whether the temperature of the indoor environment meets the first default defrost item
Part, comprising:
Whether the difference of the temperature and air conditioner set temperature that judge the indoor environment is less than or equal to the first default temperature
Difference；
If difference is less than or equal to the first fiducial temperature, determine that the temperature of the indoor environment meets the first default defrost item
Part；
If difference is greater than the first fiducial temperature, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
In some embodiments of the present application, judge whether the temperature of the indoor environment meets the first default defrost item
Part, further includes:
Judge whether the temperature of the indoor environment is greater than third preset temperature；
If so, into the first defrost pattern；
Otherwise judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
In some embodiments of the present application, defrost pattern is determined in the temperature rise amplitude by judging the temperature of indoor environment
Before, further includes:
Judge whether the current generation is the first defrost stage.
In some embodiments of the present application, by judging that the temperature rise amplitude of temperature of indoor environment determines defrost pattern,
Include:
If the current generation is the first defrost stage, the difference of the temperature and initial indoor environment temperature that judge indoor environment is
It is no to be greater than the 4th preset temperature；
If more than the 4th preset temperature, then judge whether the temperature of indoor environment is greater than the 5th preset temperature；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
In some embodiments of the present application, judge whether the temperature of indoor environment is greater than the 5th preset temperature, comprising:
If so, into third defrost pattern；
Otherwise, the running frequency of compressor is reduced.
In some embodiments of the present application, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature,
Include:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
In some embodiments of the present application, by judging that the temperature rise amplitude of temperature of indoor environment determines defrost pattern,
Further include:
If the current generation is the non-first defrost stage, the temperature of indoor environment and the difference of initial indoor environment temperature are judged
Whether the 6th preset temperature is greater than；
If so, into third defrost pattern；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
In some embodiments of the present application, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature,
Include:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
In some embodiments of the present application, after the running frequency for reducing compressor, further includes:
It is default whether the difference of the surface temperature and the surface temperature before preset duration that judge A/C evaporator is greater than second
Temperature；
If so, into the second defrost pattern；
If it is not, then reducing the running frequency of compressor.
Intelligent defrosting principle based on room thermic load is as shown in Figure 2:
The technical application is in frequency conversion room air conditioner；
Wherein:
A is that defrost process inner blower runs evaporator copper tube temperature degree TInner tubeLower limit value, it is proposed that value -15~-10 DEG C；
B (the first preset temperature) is the temperature judgment value after heating the judgement of defrost for the first time to heating capacity state, it is proposed that is taken
It 38-45 DEG C of value, can be chosen according to different external environment temperature；
C (the second preset temperature) is the temperature amplitude value for heating evaporator copper tube temperature degree and declining in 10min, it is proposed that value
2-4℃；
D (the 5th preset temperature) is that minimum inner ring of first defrost period ensures temperature, 20-24 DEG C；
X (the 4th preset temperature) is that compressor powers on the raised range value of heating operation environment temperature for the first time, it is proposed that value
18-22℃；
Y (the 6th preset temperature) is heating operation environment temperature elevation amplitude again after completing to heat non-period of defrost for the first time
Value, it is proposed that choose 6-12 DEG C, can be chosen according to different external environment temperature；
Z (third preset temperature) is environment comfort temperature range in heating room, it is proposed that 18-26 DEG C of value；
N (the first fiducial temperature) is user's set temperature and current room inner ring temperature gap, it is proposed that 2-6 DEG C of value；
TInner ring 0Interior environment temperature when for each compressor start, such as starting operation for the first time, restart fortune after defrost
The states such as row；
TInner ringFor environment temperature in reality；
The control of compressor frequency limit is according to evaporator copper pipe surface temperature TInner tubeLowest capability guarantee value, preferably value and B phase
Together；
TSettingFor air-conditioner temperature set by user；
TInner tubeFor the surface temperature of A/C evaporator；
Defrost pattern 1 is operating for inner blower during defrost, and upper and lower wind deflector can get to horizontal direction；
Defrost pattern 2 is the most strong defrost pattern of ability under 3 defrost patterns；
Defrost pattern 3 is the moderate defrost pattern of ability.
Specific embodiment is as follows:
If user at 5 DEG C of inner ring, -5 DEG C of outer ring, sets 30 DEG C, high wind file booting heats free temperature rise.This ambient condition
The corresponding parameter difference value of the lower upper figure of operation is A=-12 DEG C, B=43 DEG C, C=3 DEG C, and D=22 DEG C, X=20 DEG C, Y=10
DEG C, Z=22 DEG C, N=4 DEG C；After operation of air conditioner 1 hour, judge into frosting condition, at this time 22 DEG C of inner ring temperature, TInner tube=48
DEG C, into judging process.
T firstSetting-TInner ring=30-22=8 DEG C, TInner ring=Z=22 DEG C, it is unsatisfactory for entering defrost pattern 1；
Meanwhile the state is to first power on heating operation to belong to first defrost, then calculates temperature rise amplitude for the first time, TInner ring-TInner ring 0
=22-5=17 DEG C of < X=20 DEG C then enters and judges the evaporator copper pipe surface temperature under the operating status, TInner tube=
48 DEG C of > B=43 DEG C, it was demonstrated that system capability is able to satisfy room thermal load demands, compressor drop after outdoor machine of air-conditioner frosting under the state
Frequency is run, until controlling evaporator copper pipe surface temperature in 43 DEG C of stable frequency heating operations.
When detecting in 10min, when evaporator copper pipe surface temperature decrease beyond C=3 DEG C, then it is right to enter defrost pattern 2
Outdoor machine of air-conditioner carries out defrost；Otherwise continue heating operation.
Defrost terminates backed off after random defrost judgement, interior when heating operation and record defrost terminate to restart operation again again
Environment temperature TInner ring 0, in the process as there is not switching on and shutting down instruction, subsequent judgement is not admitted to first defrost, by the rightmost side in figure
Judge that process is repeated.There are power-off or switching on and shutting down as during, then calculates first defrost operation and execute.
Based on identical inventive concept, the present invention also provides a kind of intelligent defrosting system based on room thermic load, applications
In air conditioner, the system comprises:
First detection module, for detecting the temperature for being in indoor environment under heating mode；
First judgment module, for judging whether the temperature of the indoor environment meets the first default defrost condition；
First defrost module meets the first default defrost condition for the temperature when indoor environment, then enters the first defrost
Mode；
Determining module is unsatisfactory for the first default defrost condition for the temperature when indoor environment, then by judging indoor ring
The temperature rise amplitude of the temperature in border determines defrost pattern.
Optionally, the first judgment module includes:
First judging submodule, for judging whether the difference of temperature and air conditioner set temperature of the indoor environment is small
In or equal to the first fiducial temperature；
First determines submodule, if being less than or equal to the first fiducial temperature for difference, determines the temperature of the indoor environment
Degree meets the first default defrost condition；
Second judgment submodule judges that the surface temperature of A/C evaporator is if being greater than the first fiducial temperature for difference
It is no to be greater than the first preset temperature；
Second determines submodule, if being greater than the first preset temperature for surface temperature, reduces the running frequency of compressor；
Third determines submodule, if being less than or equal to the first preset temperature for surface temperature, enters third defrost mould
Formula.
Optionally, the first judgment module further include:
Third judging submodule, for judging whether the temperature of the indoor environment is greater than third preset temperature；
4th determines submodule, is greater than third preset temperature for the temperature when the indoor environment, then enters first and change
White mode；
4th judging submodule is less than or equal to third preset temperature for the temperature when the indoor environment and otherwise judges
Whether the surface temperature of A/C evaporator is greater than the first preset temperature；
5th determines submodule, for being greater than the first preset temperature when surface temperature, then reduces the running frequency of compressor；
6th determines submodule, for being less than or equal to the first preset temperature when surface temperature, then enters third defrost mould
Formula.
Optionally, further includes:
Second judgment module, for judging whether the current generation is the first defrost stage.
Optionally, the determining module includes:
5th judging submodule judges the temperature of indoor environment and initial if being the first defrost stage for the current generation
Whether the difference of indoor environment temperature is greater than the 4th preset temperature；
6th judging submodule then judges whether the temperature of indoor environment is big for being greater than the 4th preset temperature when difference
In the 5th preset temperature；
7th judging submodule judges the surface of A/C evaporator for being less than or equal to the 4th preset temperature when difference
Whether temperature is greater than the first preset temperature.
Optionally, the 6th judging submodule, is used for,
If the temperature of indoor environment is greater than the 5th preset temperature, enter third defrost pattern；
If the temperature of indoor environment is less than or equal to the 5th preset temperature, the running frequency of compressor is reduced.
Optionally, the 7th judging submodule, is used for
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
Optionally, the determining module further include:
8th judging submodule, if for the current generation be the non-first defrost stage, judge indoor environment temperature and just
Whether the difference of beginning indoor environment temperature is greater than the 6th preset temperature；
7th determines submodule, if being greater than the 6th preset temperature for difference, enters third defrost pattern；
9th judging submodule judges the surface of A/C evaporator for being less than or equal to the 6th preset temperature when difference
Whether temperature is greater than the first preset temperature.
Optionally, the 9th judging submodule, is used for,
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
Optionally, further includes:
Tenth judging submodule, the difference of the surface temperature before surface temperature and preset duration for judging A/C evaporator
Whether value is greater than the second preset temperature；
8th determines submodule, if being greater than the second preset temperature for difference, enters the second defrost pattern；
9th determines submodule, if being less than or equal to the second preset temperature for difference, reduces the operation frequency of compressor
Rate.
The present invention also provides a kind of air conditioners, including any of the above-described intelligent defrosting system based on room thermic load
System.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, the techniques described herein can be realized by executing the unit of function described herein.Software generation
Code is storable in memory and is executed by processor.Memory can in the processor or portion realizes outside the processor.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention is substantially
The part of the part that contributes to existing technology or the technical solution can embody in the form of software products in other words
Come, which is stored in a storage medium, including some instructions are used so that a computer equipment (can
To be personal computer, server or the network equipment etc.) execute all or part of each embodiment the method for the present invention
Step.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program
The medium of code.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (21)
1. a kind of intelligent defrosting method based on room thermic load is applied to air conditioner, which is characterized in that the described method includes:
Temperature of the detection in indoor environment under heating mode；
Judge whether the temperature of the indoor environment meets the first default defrost condition；
If satisfied, then entering the first defrost pattern；
If not satisfied, then by judging that the temperature rise amplitude of the temperature of indoor environment determines defrost pattern.
2. a kind of intelligent defrosting method based on room thermic load according to claim 1, which is characterized in that described in judgement
Whether the temperature of indoor environment meets the first default defrost condition, comprising:
Whether the difference of the temperature and air conditioner set temperature that judge the indoor environment is less than or equal to the first fiducial temperature；
If difference is less than or equal to the first fiducial temperature, determine that the temperature of the indoor environment meets the first default defrost condition；
If difference is greater than the first fiducial temperature, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
3. a kind of intelligent defrosting method based on room thermic load according to claim 1, which is characterized in that described in judgement
Whether the temperature of indoor environment meets the first default defrost condition, further includes:
Judge whether the temperature of the indoor environment is greater than third preset temperature；
If so, into the first defrost pattern；
Otherwise judge whether the surface temperature of A/C evaporator is greater than the first preset temperature；
If surface temperature is greater than the first preset temperature, the running frequency of compressor is reduced；
If surface temperature is less than or equal to the first preset temperature, enter third defrost pattern.
4. a kind of intelligent defrosting method based on room thermic load according to claim 1, which is characterized in that by sentencing
The temperature rise amplitude of the temperature of disconnected indoor environment determines before defrost pattern, further includes:
Judge whether the current generation is the first defrost stage.
5. a kind of intelligent defrosting method based on room thermic load according to claim 4, which is characterized in that described to pass through
Judge that the temperature rise amplitude of the temperature of indoor environment determines defrost pattern, comprising:
If the current generation is the first defrost stage, whether the temperature for judging indoor environment and the difference of initial indoor environment temperature are big
In the 4th preset temperature；
If more than the 4th preset temperature, then judge whether the temperature of indoor environment is greater than the 5th preset temperature；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
6. a kind of intelligent defrosting method based on room thermic load according to claim 5, which is characterized in that judgement is indoor
Whether the temperature of environment is greater than the 5th preset temperature, comprising:
If so, into third defrost pattern；
Otherwise, the running frequency of compressor is reduced.
7. a kind of intelligent defrosting method based on room thermic load according to claim 5, which is characterized in that judge air-conditioning
Whether the surface temperature of evaporator is greater than the first preset temperature, comprising:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
8. a kind of intelligent defrosting method based on room thermic load according to claim 5, which is characterized in that described to pass through
Judge that the temperature rise amplitude of the temperature of indoor environment determines defrost pattern, further includes:
If the current generation be the non-first defrost stage, judge indoor environment temperature and initial indoor environment temperature difference whether
Greater than the 6th preset temperature；
If so, into third defrost pattern；
Otherwise, judge whether the surface temperature of A/C evaporator is greater than the first preset temperature.
9. a kind of intelligent defrosting method based on room thermic load according to claim 8, which is characterized in that judge air-conditioning
Whether the surface temperature of evaporator is greater than the first preset temperature, comprising:
If so, reducing the running frequency of compressor；
Otherwise, then enter third defrost pattern.
10. according to a kind of any intelligent defrosting method based on room thermic load of claim 2-9, which is characterized in that
After the running frequency for reducing compressor, further includes:
Whether the difference of the surface temperature and the surface temperature before preset duration that judge A/C evaporator is greater than the second preset temperature；
If so, into the second defrost pattern；
If it is not, then reducing the running frequency of compressor.
11. a kind of intelligent defrosting system based on room thermic load is applied to air conditioner, which is characterized in that the system comprises:
First detection module, for detecting the temperature for being in indoor environment under heating mode；
First judgment module, for judging whether the temperature of the indoor environment meets the first default defrost condition；
First defrost module meets the first default defrost condition for the temperature when indoor environment, then enters the first defrost pattern；
Determining module is unsatisfactory for the first default defrost condition for the temperature when indoor environment, then by judging indoor environment
The temperature rise amplitude of temperature determines defrost pattern.
12. a kind of intelligent defrosting system based on room thermic load according to claim 11, which is characterized in that described
One judgment module includes:
First judging submodule, for judge the indoor environment temperature and air conditioner set temperature difference whether be less than or
Equal to the first fiducial temperature；
First determines submodule, if being less than or equal to the first fiducial temperature for difference, determines that the temperature of the indoor environment is full
The first default defrost condition of foot；
Second judgment submodule judges whether the surface temperature of A/C evaporator is big if being greater than the first fiducial temperature for difference
In the first preset temperature；
Second determines submodule, if being greater than the first preset temperature for surface temperature, reduces the running frequency of compressor；
Third determines submodule, if being less than or equal to the first preset temperature for surface temperature, enters third defrost pattern.
13. a kind of intelligent defrosting system based on room thermic load according to claim 11, which is characterized in that described
One judgment module further include:
Third judging submodule, for judging whether the temperature of the indoor environment is greater than third preset temperature；
4th determines submodule, is greater than third preset temperature for the temperature when the indoor environment, then enters the first defrost mould
Formula；
4th judging submodule is less than or equal to third preset temperature for the temperature when the indoor environment and otherwise judges air-conditioning
Whether the surface temperature of evaporator is greater than the first preset temperature；
5th determines submodule, for being greater than the first preset temperature when surface temperature, then reduces the running frequency of compressor；
6th determines submodule, for being less than or equal to the first preset temperature when surface temperature, then enters third defrost pattern.
14. a kind of intelligent defrosting system based on room thermic load according to claim 11, which is characterized in that also wrap
It includes:
Second judgment module, for judging whether the current generation is the first defrost stage.
15. a kind of intelligent defrosting system based on room thermic load according to claim 14, which is characterized in that described true
Cover half block includes:
5th judging submodule, the temperature for judging indoor environment if being the first defrost stage for the current generation and initially interior
Whether the difference of environment temperature is greater than the 4th preset temperature；
6th judging submodule then judges whether the temperature of indoor environment is greater than for being greater than the 4th preset temperature when difference
Five preset temperatures；
7th judging submodule judges the surface temperature of A/C evaporator for being less than or equal to the 4th preset temperature when difference
Whether the first preset temperature is greater than.
16. a kind of intelligent defrosting system based on room thermic load according to claim 15, which is characterized in that described
Six judging submodules, are used for,
If the temperature of indoor environment is greater than the 5th preset temperature, enter third defrost pattern；
If the temperature of indoor environment is less than or equal to the 5th preset temperature, the running frequency of compressor is reduced.
17. a kind of intelligent defrosting system based on room thermic load according to claim 15, which is characterized in that described
Seven judging submodules, are used for
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
18. a kind of intelligent defrosting system based on room thermic load according to claim 15, which is characterized in that described true
Cover half block further include:
8th judging submodule, if for the current generation be the non-first defrost stage, judge indoor environment temperature and initial room
Whether the difference of interior environment temperature is greater than the 6th preset temperature；
7th determines submodule, if being greater than the 6th preset temperature for difference, enters third defrost pattern；
9th judging submodule judges the surface temperature of A/C evaporator for being less than or equal to the 6th preset temperature when difference
Whether the first preset temperature is greater than.
19. a kind of intelligent defrosting system based on room thermic load according to claim 18, which is characterized in that described
Nine judging submodules, are used for,
If the surface temperature of A/C evaporator is greater than the first preset temperature, the running frequency of compressor is reduced；
If the surface temperature of A/C evaporator is less than or equal to the first preset temperature, enter third defrost pattern.
20. a kind of intelligent defrosting system based on room thermic load described in 2-19 according to claim 1, which is characterized in that also
Include:
The difference of tenth judging submodule, the surface temperature before surface temperature and preset duration for judging A/C evaporator is
It is no to be greater than the second preset temperature；
8th determines submodule, if being greater than the second preset temperature for difference, enters the second defrost pattern；
9th determines submodule, if being less than or equal to the second preset temperature for difference, reduces the running frequency of compressor.
21. a kind of air conditioner, which is characterized in that including the intelligence based on room thermic load as described in claim 11-20 is any
It can defrosting system.
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| CN109654664B (en) | 2020-04-28 |
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