CN107084507A - Defrost determination methods, defrost judge system and air-conditioning - Google Patents
Defrost determination methods, defrost judge system and air-conditioning Download PDFInfo
- Publication number
- CN107084507A CN107084507A CN201710414149.8A CN201710414149A CN107084507A CN 107084507 A CN107084507 A CN 107084507A CN 201710414149 A CN201710414149 A CN 201710414149A CN 107084507 A CN107084507 A CN 107084507A
- Authority
- CN
- China
- Prior art keywords
- blower fan
- air
- conditioning
- defrost
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- 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
-
- 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
- F24F11/62—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
Abstract
Judge system and air-conditioning the invention provides a kind of defrost determination methods, defrost.Wherein, defrost determination methods include：It is in air-conditioning in heating process, detection blower fan rotating speed；If the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, the rate of change of rotation speed of fan is determined；In the case of rate of change non-negative, the preparatory condition of blower fan is determined；If the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time, defrosting operation is performed to air-conditioning.Pass through technical solution of the present invention, it is to avoid the situation of defrost during frostless or slight frosting, improve heating effect.
Description
Technical field
The present invention relates to field of air conditioning, system, one are judged in particular to a kind of defrost determination methods, a kind of defrost
Plant computer equipment, a kind of computer-readable recording medium and a kind of air-conditioning.
Background technology
At present, for air-conditioning, in the case where environment temperature low humidity is high, the easy frosting of outdoor condenser, one
Denier frosting, the heating effect of air-conditioning will be greatly affected, and heating effect will have a greatly reduced quality, and now need to carry out defrost to air-conditioning
Protection.General judgement system judges that frosting degree is all to be judged that (temperature is low, thinks that frosting is tight according to condenser temperature
Weight), but in the case where environment temperature low humidity is low, easily erroneous judgement, carries out defrosting operation, frequently in frostless or slight frosting
Defrost, causes heating effect to decline, and energy consumption is wasted.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of defrost determination methods, for air-conditioning.
It is another object of the present invention to propose that a kind of defrost judges system, for air-conditioning.
Another object of the present invention is to propose a kind of computer equipment.
Another object of the present invention is to propose a kind of computer-readable recording medium.
Another object of the present invention is to propose a kind of air-conditioning.
To achieve these goals, the embodiment of first aspect present invention provides a kind of defrost determination methods, for sky
Adjust, method includes：It is in air-conditioning in heating process, detection blower fan rotating speed；If the time that rotating speed exceedes rotary speed threshold value is big
In the first preset time, the rate of change of rotation speed of fan is determined；In the case of rate of change non-negative, the preparatory condition of blower fan is determined；
If the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time, defrosting operation is performed to air-conditioning.
In the technical scheme, when air-conditioning is in heating process, the real-time rotating speed of blower fan is detected；When
Rotation speed of fan exceedes rotary speed threshold value and continued for some time, and the duration is more than the first preset time, wherein, rotary speed threshold value is wind
Machine in the running, the maximum speed that blower fan can reach；First preset time refers to rotation speed of fan to transport higher than rotary speed threshold value
Turn the preset value of duration, more than this preset value, it is necessary to next step defrost judgement be carried out to air-conditioning, now to rotation speed of fan
Rate of change is determined；When it is determined that the rate of change of rotation speed of fan is more than or equal to 0, the preparatory condition to blower fan is determined；When
The operational factor of blower fan meets preparatory condition and maintains a period of time, when the time of maintenance is more than the second preset time, then can be with
Judge that air-conditioning frosting is serious, it is necessary to carry out defrost protection to air-conditioning, then defrosting operation is carried out to air-conditioning, it is to avoid be frostless and slight
Defrost during frosting, reduces air conditioning energy consumption, improves air-conditioning heating effect.
In the above-mentioned technical solutions, it is preferable that operational factor is specifically included：Blower fan electric current, power of fan.
In the technical scheme, because for blower fan, there is direct ratio in rotating speed and blower fan electric current, the power of fan of blower fan
Example relation, when the rotating speed increase of blower fan, blower fan electric current, power of fan can also be accordingly increased therewith.
In the above-mentioned technical solutions, it is preferable that when operational factor is blower fan electric current, the operational factor of blower fan meets default bar
Part, is specifically included：Operating current when blower fan electric current is worked not less than blower fan with rotary speed threshold value and first corresponding to blower fan
Offset sum；
In the technical scheme, when air-conditioning is heated, blower fan electric current is detected, when detecting, blower fan electric current is big
First offset sum of operating current and correspondence blower fan when being worked equal to blower fan with rotary speed threshold value, you can think blower fan
Operational factor meet preparatory condition.Wherein, the first offset be blower fan in varying environment operating mode, rated current produce ripple
Dynamic, corresponding first offset of different blower fans is different.Because blower fan electric current is relevant with rotation speed of fan, direct proportionality, when
During air-conditioning condenser frosting, passage between fin can be blocked, increases air flow resistance, blower fan electric current becomes big.Binding time is analyzed
The change of the rate of change and blower fan electric current of rotation speed of fan, can obtain during different frosting degree the rate of change of rotation speed of fan and
The size of blower fan electric current.When the time for exceeding rotary speed threshold value in rotation speed of fan is more than the first preset time, the change of rotation speed of fan
When rate is more than or equal to 0, operating current when blower fan electric current is worked less than blower fan with rotary speed threshold value and first corresponding to blower fan
During offset sum, it can determine that as non-frosting.Therefore, blower fan size of current is reflection frosting whether key parameter.
In the above-mentioned technical solutions, it is preferable that when operational factor is power of fan, the operational factor of blower fan meets default bar
Part, is specifically included：Operating power when power of fan is worked not less than blower fan with rotary speed threshold value and second corresponding to blower fan
Offset sum.
In the technical scheme, when air-conditioning is heated, power of fan is detected, it is big when detecting power of fan
Second offset sum of operating power and correspondence blower fan when being worked equal to blower fan with rotary speed threshold value, you can think blower fan
Operational factor meet preparatory condition.Because power of fan is relevant with rotation speed of fan, direct proportionality, when air-conditioning condenser knot
When white, passage between fin can be blocked, increases air flow resistance, power of fan becomes big.Binding time analyzes the change of rotation speed of fan
The change of rate and power of fan, can obtain the big of the rate of change of rotation speed of fan during different frosting degree and power of fan
It is small.When the time for exceeding rotary speed threshold value in rotation speed of fan is more than the first preset time, the rate of change of rotation speed of fan is more than or equal to 0
When, power of fan is less than operating power when blower fan is worked with rotary speed threshold value and the second offset sum corresponding to blower fan
When, it can determine that as non-frosting.Therefore, power of fan is reflection frosting whether key parameter.
In the above-mentioned technical solutions, it is preferable that after the completion of defrosting operation, determine rotating speed exceed rotary speed threshold value time with
And first preset time；If the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, and in the situation of rate of change non-negative
Under, the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time, then performs defrosting operation to air-conditioning.
In the technical scheme, after an air-conditioning defrosting operation is completed, rotation speed of fan is detected again, to wind
Machine rotating speed is more than the duration of rotary speed threshold value and the first preset time is determined；When rotation speed of fan is more than rotary speed threshold value
Time is more than the first preset time, and the relative speed variation of blower fan is when being more than or equal to 0, the operational factor of blower fan is carried out true
It is fixed；When it is determined that the operational factor of blower fan meets preset time, and the second preset time is sustained for longer than, then judges air-conditioning cold
Condenser frosting, and defrosting operation is carried out to air-conditioning, air-conditioning is realized after a defrosting operation, and air-conditioning is entered after frosting again
Row continues defrost, it is ensured that during air-conditioning work, both will not defrost not in time, also will not frequently defrost, it is to avoid it is frostless and slight
Defrost during frosting, reduces air conditioning energy consumption, improves air-conditioning heating effect.
In the above-mentioned technical solutions, it is preferable that when being additionally included in blower fan and being worked with preset rotation speed, detect rotation speed of fan
Rate of change is negative in the 3rd preset time, then performs defrosting operation to air-conditioning.
In the technical scheme, when blower fan is worked with working speed, when rotation speed of fan rate of change is bears, A/C evaporator
Evaporability decline, now the evaporability of A/C evaporator is not enough to allow all low temperature liquid water evaporating completelies, air-conditioning
Condenser starts frosting, after this state certain time, judges that air-conditioning frosting is serious, and defrost protection is carried out to air-conditioning and is grasped
Make, it is to avoid defrosted during frostless and slight frosting, reduce air conditioning energy consumption, improve the heating effect of air-conditioning.
The embodiment of second aspect of the present invention judges system there is provided a kind of defrost, for air regulator, including：Rotating speed
Detection unit, for being in air-conditioning in heating process, detection blower fan rotating speed；Rate of change determining unit, in rotating speed
When time more than rotary speed threshold value is more than the first preset time, the rate of change of rotation speed of fan is determined；Condition determining unit, for
In the case of rate of change non-negative, the preparatory condition of blower fan is determined；First defrost unit, for meeting pre- in the operational factor of blower fan
If the duration of condition is more than the second preset time, defrosting operation is performed to air-conditioning.
In the technical scheme, in air-conditioning heating running, rotating speed unit is detected to the rotating speed of blower fan；Work as wind
When the time that machine rotating speed exceedes rotary speed threshold value is more than the first preset time, rotation speed of fan is determined by rate of change determining unit
Rate of change；In the case that relative speed variation is more than or equal to 0, the preparatory condition of blower fan is carried out by condition determining unit true
It is fixed；When the duration that the operational factor of blower fan meets preparatory condition being more than the second preset time, air-conditioning condenser knot is judged
White serious, the first defrost unit performs defrosting operation to air-conditioning, it is to avoid frostless and slight frosting defrost, reduces air-conditioning energy
Consumption, improves air-conditioning heating effect.
In the above-mentioned technical solutions, it is preferable that operational factor is specifically included：Blower fan electric current, power of fan.
In the above-mentioned technical solutions, it is preferable that when operational factor is blower fan electric current, the operational factor of blower fan meets default bar
Part, is specifically included：Operating current when blower fan electric current is worked not less than blower fan with rotary speed threshold value and first corresponding to blower fan
Offset sum.
In the technical scheme, when air-conditioning condenser frosting, frost layer increase increases air and flows through finned-tube evaporator
Resistance, reduce air mass flow, cause blower fan electric current increase, with thickening for frost layer, blower fan electric current can be gradually increased；Work as wind
When the time that machine rotating speed exceedes rotary speed threshold value is more than the first preset time, rotation speed of fan rate of change is more than or equal in the case of 0, wind
When electromechanics stream is less than operating current when blower fan is worked with rotary speed threshold value and the first offset sum corresponding to blower fan, judge
The non-frosting of air-conditioning, therefore, blower fan electric current are reflection frosting whether key parameters.
In the above-mentioned technical solutions, it is preferable that when operational factor is power of fan, the operational factor of blower fan meets default bar
Part, is specifically included：Operating power when power of fan is worked not less than blower fan with rotary speed threshold value and second corresponding to blower fan
Offset sum.
In the technical scheme, when air-conditioning condenser frosting, frost layer increase increases air and flows through finned-tube evaporator
Resistance, reduce air mass flow, cause power of fan to become big, with thickening for frost layer, power of fan can be gradually increased；Work as wind
When the time that machine rotating speed exceedes rotary speed threshold value is more than the first preset time, rotation speed of fan rate of change is more than or equal in the case of 0, wind
When acc power is less than operating power when blower fan is worked with rotary speed threshold value and the second offset sum corresponding to blower fan, judge
The non-frosting of air-conditioning, therefore, power of fan are reflection frosting whether key parameters.
In the above-mentioned technical solutions, it is preferable that also include：Cycling element, for after the completion of defrosting operation, determining rotating speed
Time and the first preset time more than rotary speed threshold value；If the time that rotating speed exceedes rotary speed threshold value is more than the first preset time,
And in the case of rate of change non-negative, the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time,
Defrosting operation then is performed to air-conditioning.
In the technical scheme, air-conditioning is in heating operation work, and after the completion of a defrosting operation, air-conditioning again can be again
Start frosting, now determine that rotation speed of fan exceedes time and the first preset time of rotary speed threshold value by cycling element, if wind
The time that machine rotating speed exceedes rotary speed threshold value is more than the first preset time, and in the case where rotation speed of fan rate of change is more than or equal to 0,
When the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time, judge that air-conditioning frosting is serious, to sky
Transfer in row defrost protection operation, it is to avoid defrosted during frostless and slight frosting, reduce air conditioning energy consumption, improve heating for air-conditioning
Effect.
In the above-mentioned technical solutions, it is preferable that also include：Second defrost unit, for being worked in blower fan with preset rotation speed
When, if the rate of change for detecting rotation speed of fan is negative in the 3rd preset time, defrosting operation is performed to air-conditioning.
In the technical scheme, when rotation speed of fan is low, the temperature of evaporator is too low, and it is attached thereon that evaporability is not enough to evaporation
The aqueous water, in the case where environment temperature is low, aqueous water can be condensed in gradually on air-conditioning, and air-conditioning can gradually frosting.If inspection
Measure rotation speed of fan rate of change and be less than 0 in the 3rd preset time, then it is considered that now air-conditioning frosting is serious, it is necessary to be changed
Frost protection operation, the second defrost unit starts to perform defrosting operation to air-conditioning, it is to avoid defrosted during frostless and slight frosting, reduction
Air conditioning energy consumption, improves the heating effect of air-conditioning.
The embodiment of third aspect present invention provides a kind of computer equipment, including memory, processor and is stored in
On memory and the computer program that can run on a processor.Computing device computer program performs the change of any of the above-described
White determination methods.
In the technical scheme, the computer program for performing the defrost determination methods of any of the above-described is stored in memory
On, during computing device computer program, air-conditioning frosting situation can accurately be judged, and defrost in time, reduce sky
Energy consumption is adjusted, the heating performance of air-conditioning is improved.
The embodiment of fourth aspect present invention provides a kind of computer-readable medium, is stored thereon with computer journey
Sequence, the computer program realizes defrost determination methods as described above when being executed by processor.
In the technical scheme, processor realizes that defrost determination methods as described above are needed by computer program, this
Planting computer program needs to be stored in computer-readable medium.This computer-readable medium ensure that computer program
It can be executed by processor, so as to accurately be judged air-conditioning frosting degree, it is to avoid frostless defrosting, reduce air-conditioning energy
Consumption, improves heating effect.
The embodiment of fifth aspect present invention provides a kind of air-conditioning, including the above-mentioned defrost of any one judges system.
In the technical scheme, including the above-mentioned defrost of any one judges the air-conditioning of system, under the low operating mode of environment temperature
When heating work operation, defrost can be carried out to air-conditioning at the optimal defrost moment, both avoid defrost not in time, and it also avoid nothing
Frequent defrost when white or a small amount of white, improves heating performance, it is ensured that indoor control temperature, reduces energy consumption, reduces user
Run the cost during air-conditioning.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 shows the schematic flow sheet of defrost determination methods according to an embodiment of the invention；
Fig. 2 shows the schematic flow sheet of defrost determination methods according to another embodiment of the invention；
Fig. 3 shows the schematic flow sheet of defrost determination methods according to still a further embodiment；
Fig. 4 shows that defrost according to an embodiment of the invention judges the schematic block diagram of system；
The defrost that Fig. 5 shows according to another embodiment of the invention judges the schematic block diagram of system；
The defrost that Fig. 6 shows according to still a further embodiment judges the schematic block diagram of system；
Fig. 7 shows the schematic diagram of computer equipment according to still a further embodiment；
Fig. 8 shows the schematic block diagram of air-conditioning according to an embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
With reference to Fig. 1 to Fig. 3 to being specifically described according to the defrost determination methods of the present invention.
Fig. 1 shows the schematic flow sheet of defrost determination methods according to an embodiment of the invention.
As shown in figure 1, defrost determination methods include：
Step 102, it is in air-conditioning in heating process, detection blower fan rotating speed；
Step 104, if the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, the change of rotation speed of fan is determined
Rate；
Step 106, in the case of rate of change non-negative, the preparatory condition of blower fan is determined；
Step 108, if the duration that the electric current of blower fan meets preparatory condition is more than the second preset time, air-conditioning is held
Row defrosting operation.
In this embodiment, when air-conditioning is in heating process, when rotation speed of fan exceedes rotary speed threshold value and continues
For a period of time, the duration is more than the first preset time, and now the rate of change of rotation speed of fan is determined；When it is determined that blower fan turns
When the rate of change of speed is more than or equal to 0, the preparatory condition to blower fan is determined；When the operational factor of blower fan meets preparatory condition simultaneously
Continue for some time, when duration is more than the second preset time, then can be determined that air-conditioning frosting is serious, it is necessary to enter to air-conditioning
Row defrost is protected, then carries out defrosting operation to air-conditioning, it is to avoid defrost during frostless and slight frosting, is reduced air conditioning energy consumption, is carried
Air-conditioning heating effect is risen.
It is understood that can simulate under different low temperature environments, with reference to air-conditioning frosting degree, comprehensive descision is drafted
Suitable first preset time；Corresponding rated current offset and corresponding rated power offset, can be by simulation not
Under same environmental working condition, the fluctuation data that electric current and power are produced draw rational numerical value.Meanwhile, exceed in rotation speed of fan and turn
Fast threshold value, but the duration be less than the first preset time when, judge that air-conditioning frosting degree is not serious, not to air-conditioning progress defrost behaviour
Make.
Fig. 2 shows the schematic flow sheet of defrost determination methods according to another embodiment of the invention.
As shown in Fig. 2 defrost determination methods include：
Step 202, it is in air-conditioning in heating process, detection blower fan rotating speed；
Step 204, if the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, the change of rotation speed of fan is determined
Rate；
Step 206, in the case of rate of change non-negative, the preparatory condition of blower fan is determined；
Step 208, if the duration that the electric current of blower fan meets preparatory condition is more than the second preset time, air-conditioning is held
Row defrosting operation.
In this embodiment, when air-conditioning is in heating process, when rotation speed of fan exceedes rotary speed threshold value and continues
For a period of time, the duration is more than the first preset time, and now the rate of change of rotation speed of fan is determined；When it is determined that blower fan turns
When the rate of change of speed is more than or equal to 0, the preparatory condition to blower fan is determined, when fan operation parameter is blower fan electric current, its
Preparatory condition is the operating current and corresponding offset sum when blower fan is worked with rotary speed threshold value；When blower fan electric current meets pre-
If condition is simultaneously continued for some time, when duration is more than the second preset time, then can be determined that air-conditioning frosting it is serious, it is necessary to
Defrost protection is carried out to air-conditioning, then defrosting operation is carried out to air-conditioning, it is to avoid defrost during frostless and slight frosting, air-conditioning is reduced
Energy consumption, improves air-conditioning heating effect.
Specifically, different blower fans is when environmental working condition changes, and operating current when blower fan is worked with rotary speed threshold value is produced
Raw fluctuation data are different, it is necessary to which with reference to specific model, during simulated environment working conditions change, blower fan current fluctuation data are obtained
Go out corresponding offset.
Fig. 3 shows the schematic flow sheet of defrost determination methods according to still a further embodiment.
As shown in figure 3, defrost determination methods include：
Step 304, if the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, the change of rotation speed of fan is determined
Rate；
Step 306, in the case of rate of change non-negative, the preparatory condition of blower fan is determined；
Step 308, if the duration that the power of blower fan meets preparatory condition is more than the second preset time, air-conditioning is held
Row defrosting operation.
In this embodiment, when air-conditioning is in heating process, when rotation speed of fan exceedes rotary speed threshold value and continues
For a period of time, the duration is more than the first preset time, and now the rate of change of rotation speed of fan is determined；When it is determined that blower fan turns
When the rate of change of speed is more than or equal to 0, the preparatory condition to blower fan is determined, when fan operation parameter is power of fan, its
Preparatory condition is the operating power and corresponding offset sum when blower fan is worked with rotary speed threshold value；When power of fan meets pre-
If condition is simultaneously continued for some time, when duration is more than the second preset time, then can be determined that air-conditioning frosting it is serious, it is necessary to
Defrost protection is carried out to air-conditioning, then defrosting operation is carried out to air-conditioning, it is to avoid defrost during frostless and slight frosting, air-conditioning is reduced
Energy consumption, improves air-conditioning heating effect.
Specifically, different air-conditionings is when environmental working condition changes, and operating power when blower fan is worked with rotary speed threshold value is produced
Raw fluctuation data are different, it is necessary to which with reference to specific model, during simulated environment working conditions change, power of fan fluctuation data are obtained
Go out corresponding offset.
In any of the above-described embodiment, in addition to：If the rate of change for detecting rotation speed of fan is in the 3rd preset time
It is negative, then defrosting operation is performed to air-conditioning.
In this embodiment, when air-conditioning is in low wind working condition, rotation speed of fan reduction, when rotation speed of fan reduces state
When continuing for some time, evaporator temperature, which is reduced to, all to evaporate aqueous water, and air-conditioning can gradually frosting.Detection blower fan turns
When the rate of change of speed is less than 0 within the 3rd time, defrosting operation is carried out to air-conditioning, the heating effect of air-conditioning is improved, it is ensured that
Indoor temperature, reduces energy consumption.
Specifically, different air-conditioning, the 3rd preset time is different, by simulating under Different hypothermia environment, detects the model
Air-conditioning is from frostless state to the time of defrost state is needed, and it is the 3rd preset time of the model air-conditioning to draw optimum value.
System, which is specifically described, to be judged to defrost according to an embodiment of the invention with reference to Fig. 4 to Fig. 6.
Fig. 4 shows that defrost according to an embodiment of the invention judges the schematic block diagram of system.
As shown in figure 4, defrost judges that system includes：
Rotation speed detection unit 402, for being in air-conditioning in heating process, detection blower fan rotating speed；
Rate of change determining unit 404, when being more than the first preset time for exceeding the time of rotary speed threshold value in rotating speed, it is determined that
The rate of change of rotation speed of fan；
Condition determining unit 406, in the case of rate of change non-negative, determining the preparatory condition of blower fan；
First defrost unit 408, the duration for meeting preparatory condition in the operational factor of blower fan is pre- more than second
If during the time, defrosting operation is performed to air-conditioning.
In this embodiment, in air-conditioning heating running, rotating speed unit is examined to the real-time working rotating speed of blower fan
Survey；When rotation speed of fan exceedes rotary speed threshold value and continues for some time, the duration is more than the first preset time, true by rate of change
Order member determines the rate of change of rotation speed of fan；In the case that relative speed variation is more than or equal to 0, pass through condition determining unit pair
The preparatory condition of blower fan is determined；It is more than the second preset time when the duration that the operational factor of blower fan meets preparatory condition
When, judge the serious frosting of air-conditioning, the first defrost unit performs defrosting operation to air-conditioning, it is to avoid frostless defrost, frequent defrost, drop
Low air conditioning energy consumption, improves air-conditioning heating effect.
Specifically, in air-conditioning heating running, rotating speed unit detects rotation speed of fan more than rotary speed threshold value and continued
For a period of time, when the duration is less than the first preset time, judge that air-conditioning is frostless or slight frosting, now not to air-conditioning execution
Frost operation.
The defrost that Fig. 5 shows according to another embodiment of the invention judges the schematic block diagram of system.
As shown in figure 5, defrost judges that system includes：
Rotation speed detection unit 502, for being in air-conditioning in heating process, detection blower fan rotating speed；
Rate of change determining unit 504, when being more than the first preset time for exceeding the time of rotary speed threshold value in rotating speed, it is determined that
The rate of change of rotation speed of fan；
Condition determining unit 506, in the case of rate of change non-negative, determining the preparatory condition of blower fan；
First defrost unit 508, the duration for meeting preparatory condition in the operational factor of blower fan is pre- more than second
If during the time, defrosting operation is performed to air-conditioning.
Cycling element 510, for after the completion of defrosting operation, determining that rotating speed is pre- more than the time of rotary speed threshold value and first
If the time；If the time that rotating speed exceedes rotary speed threshold value is more than the first preset time, and in the case of rate of change non-negative, blower fan
The duration that operational factor meets preparatory condition is more than the second preset time, then performs defrosting operation to air-conditioning.
In this embodiment, in air-conditioning heating running, rotating speed unit is detected to rotation speed of fan；When blower fan turns
Speed, which exceedes, rotary speed threshold value and to be continued for some time, when the duration is more than the first preset time, by rate of change determining unit come
Determine the rate of change of rotation speed of fan；In the case that relative speed variation is more than or equal to 0, by condition determining unit to the pre- of blower fan
If condition is determined；When the duration that the operational factor of blower fan meets preparatory condition being more than the second preset time, judge
The serious frosting of air-conditioning, the first defrost unit performs defrosting operation to air-conditioning.It is empty after the first defrost unit terminates to air-conditioning defrost
Frosting can be restarted again by adjusting, when now determining that rotation speed of fan is default more than rotary speed threshold value time and first by cycling element
Between, if rotation speed of fan exceedes the rotary speed threshold value time and is more than the first preset time, and it is more than or equal to 0 feelings in rotation speed of fan rate of change
Under condition, when the operational factor of blower fan meets the duration of preparatory condition more than the second preset time, judge that air-conditioning frosting is serious,
Defrost protection is then carried out to air-conditioning to operate, it is to avoid defrost during frostless and slight frosting, reduce air conditioning energy consumption, improve air-conditioning
Heating effect.
The defrost that Fig. 6 shows according to still a further embodiment judges the schematic block diagram of system.
As shown in fig. 6, defrost judges that system includes：
Rotation speed detection unit 602, for being in air-conditioning in heating process, detection blower fan rotating speed；
Rate of change determining unit 604, when being more than the first preset time for exceeding the time of rotary speed threshold value in rotating speed, it is determined that
The rate of change of rotation speed of fan；
Condition determining unit 606, in the case of rate of change non-negative, determining the preparatory condition of blower fan；
First defrost unit 608, the duration for meeting preparatory condition in the operational factor of blower fan is pre- more than second
If during the time, defrosting operation is performed to air-conditioning.
Second defrost unit 610, for when blower fan is worked with preset rotation speed, if the rate of change for detecting rotation speed of fan exists
It is negative in 3rd preset time, then defrosting operation is performed to air-conditioning.
In this embodiment, in air-conditioning heating running, rotating speed unit is detected to the rotating speed of blower fan；Work as blower fan
When rotating speed exceedes the rotary speed threshold value time more than the first preset time, the change of rotation speed of fan is determined by rate of change determining unit
Rate；In the case where relative speed variation is more than or equal to 0, the preparatory condition of blower fan is determined by condition determining unit；When
When the duration that the operational factor of blower fan meets preparatory condition is more than the second preset time, judge that air-conditioning condenser is seriously tied
Frost, the first defrost unit performs defrost protection to air-conditioning and operated.After the first defrost unit terminates to air-conditioning defrost, air-conditioning meeting again
Restart frosting, detected by the rotating speed to blower fan, if detecting rotation speed of fan rate of change in the 3rd preset time
Less than 0, then it is considered that now air-conditioning frosting is serious, it is necessary to carry out defrost protection operation, the second defrost unit starts to air-conditioning
Perform defrosting operation, it is to avoid defrost during frostless and slight frosting, reduce air conditioning energy consumption, improve air-conditioning heating effect.
Computer equipment according to an embodiment of the invention is specifically described with reference to Fig. 7.
Fig. 7 shows the schematic block diagram of computer equipment according to an embodiment of the invention.
As shown in fig. 7, computer equipment 1 includes：
Memory 12, memory 12 is used to store computer program；
Processor 14, processor 14 is used to perform the computer program stored in memory；
Processor 14 performs following steps when performing computer program：
It is in air-conditioning in heating process, detection blower fan rotating speed；If the time that rotating speed exceedes rotary speed threshold value is more than the
One preset time, determines the rate of change of rotation speed of fan；In the case of rate of change non-negative, the preparatory condition of blower fan is determined；If wind
The duration that the electric current of machine meets preparatory condition is more than the second preset time, then performs defrosting operation to air-conditioning.
In this embodiment, the computer program for performing the defrost determination methods of any of the above-described is stored on a memory,
During computing device computer program, air-conditioning frosting situation can accurately be judged, and defrost in time, it is to avoid it is frostless and
Defrost during slight frosting, reduces air conditioning energy consumption, improves air-conditioning heating effect.
Specifically, when computing device computer program, when judging frostless air-conditioning or slight frosting, air-conditioning is not entered
Row defrosting operation, it is to avoid energy consumption is wasted.
Air-conditioning according to an embodiment of the invention is specifically described with reference to Fig. 8.
As shown in figure 8, air-conditioning 800 includes：
Defrost judges system 802, and defrost judges that system 802 is used to judge whether air-conditioning needs defrosting and in air-conditioning needs
Defrosting operation is carried out to air-conditioning during defrosting.
In this embodiment, including above-mentioned defrost judges the air-conditioning of system, work is heated under conditions of environment temperature is low
During operation, defrost can be carried out to air-conditioning at the optimal defrost moment, both avoid defrost not in time, and it also avoid frostless or a small amount of
Frequent defrost, improves heating performance when white, it is ensured that indoor control temperature, reduces energy consumption, reduces user and runs the sky
The cost of timing.
Specifically, it can judge that defrost the size of system is designed according to corresponding air supply rate.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the embodiment or specific features, structure, material or the feature of example description is contained at least one reality of the invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of defrost determination methods, for air regulator, it is characterised in that including：
It is in air-conditioning in heating process, detection blower fan rotating speed；
If the time that the rotating speed exceedes rotary speed threshold value is more than the first preset time, the rate of change of the rotation speed of fan is determined；
In the case of the rate of change non-negative, the preparatory condition of the blower fan is determined；
If the duration that the operational factor of the blower fan meets the preparatory condition is more than the second preset time, to the sky
Adjust and perform defrosting operation.
2. defrost determination methods according to claim 1, it is characterised in that the operational factor is specifically included：
Blower fan electric current, power of fan.
3. defrost determination methods according to claim 2, it is characterised in that
When the operational factor is the blower fan electric current, the operational factor of the blower fan meets the preparatory condition, specifically includes：
The blower fan electric current not less than the blower fan worked with the rotary speed threshold value when operating current and corresponding to the blower fan
First offset sum；
When the operational factor is the power of fan, the operational factor of the blower fan meets the preparatory condition, specifically includes：
The power of fan not less than the blower fan worked with the rotary speed threshold value when operating power and corresponding to the blower fan
Second offset sum.
4. defrost determination methods according to any one of claim 1 to 3, it is characterised in that also include：
After the completion of the defrosting operation, determine that the rotating speed exceedes the time of rotary speed threshold value and first preset time；
If the time that the rotating speed exceedes rotary speed threshold value is more than the first preset time, and in the case of the rate of change non-negative,
The duration that the operational factor of the blower fan meets the preparatory condition is more than the second preset time, then the air-conditioning is performed
Defrosting operation.
5. defrost determination methods according to any one of claim 1 to 3, it is characterised in that also include：
When the blower fan is worked with preset rotation speed, the rate of change for detecting the rotation speed of fan is in the 3rd preset time
It is negative, then defrosting operation is performed to the air-conditioning.
6. a kind of defrost judges system, for air regulator, it is characterised in that including：
Rotation speed detection unit, for being in air-conditioning in heating process, detection blower fan rotating speed；
Rate of change determining unit, when being more than the first preset time for exceeding the time of rotary speed threshold value in the rotating speed, determines institute
State the rate of change of rotation speed of fan；
Condition determining unit, in the case of the rate of change non-negative, determining the preparatory condition of the blower fan；
First defrost unit, the duration for meeting the preparatory condition in the operational factor of the blower fan is pre- more than second
If during the time, defrosting operation is performed to the air-conditioning.
7. defrost according to claim 6 judges system, it is characterised in that the operational factor is specifically included：
Blower fan electric current, power of fan.
8. defrost according to claim 7 judges system, it is characterised in that
When the operational factor is the blower fan electric current, the operational factor of the blower fan meets the preparatory condition, specifically includes：
The blower fan electric current not less than the blower fan worked with the rotary speed threshold value when operating current and corresponding to the blower fan
First offset sum；
When the operational factor is the power of fan, the operational factor of the blower fan meets the preparatory condition, specifically includes：
The power of fan not less than the blower fan worked with the rotary speed threshold value when operating power and corresponding to the blower fan
Second offset sum.
9. the defrost according to any one of claim 6 to 8 judges system, it is characterised in that also include：
Cycling element, for after the completion of the defrosting operation, determining that the rotating speed exceedes time of rotary speed threshold value and described
First preset time；If the time that the rotating speed exceedes rotary speed threshold value is more than the first preset time, and in the rate of change non-negative
In the case of, the duration that the operational factor of the blower fan meets the preparatory condition is more than the second preset time, then to institute
State air-conditioning and perform defrosting operation.
10. the defrost according to any one of claim 6 to 8 judges system, it is characterised in that also include：
Second defrost unit, for when the blower fan is worked with preset rotation speed, if detecting the rate of change of the rotation speed of fan
It is negative in the 3rd preset time, then defrosting operation is performed to the air-conditioning.
11. a kind of computer equipment, including memory, processor and it is stored on the memory and can be on the processor
The computer program of operation, it is characterised in that perform such as claim 1 to 5 described in the computing device during computer program
Any one of defrost determination methods.
12. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program
The defrost determination methods as any one of claim 1 to 5 are realized when being executed by processor.
13. a kind of air-conditioning, it is characterised in that including：Defrost any one of claim 6 to 10 judges system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414149.8A CN107084507A (en) | 2017-06-05 | 2017-06-05 | Defrost determination methods, defrost judge system and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414149.8A CN107084507A (en) | 2017-06-05 | 2017-06-05 | Defrost determination methods, defrost judge system and air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107084507A true CN107084507A (en) | 2017-08-22 |
Family
ID=59607901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710414149.8A Pending CN107084507A (en) | 2017-06-05 | 2017-06-05 | Defrost determination methods, defrost judge system and air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084507A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444034A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Indoor unit anti-freeze control method and air conditioner for air conditioner |
| CN108444047A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN109798634A (en) * | 2019-01-30 | 2019-05-24 | 海信家电集团股份有限公司 | A kind of Defrost method and air conditioner of air conditioner |
| CN110274352A (en) * | 2019-06-21 | 2019-09-24 | 广州惜源合同能源管理技术服务有限公司 | A kind of energy-saving optimization method and system |
| CN110848886A (en) * | 2019-11-28 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner, defrosting method thereof and computer readable storage medium |
| CN110873408A (en) * | 2018-08-31 | 2020-03-10 | 青岛海尔空调器有限总公司 | Air conditioner and self-cleaning control method thereof |
| WO2022127309A1 (en) * | 2020-12-17 | 2022-06-23 | 珠海格力电器股份有限公司 | Defrosting control method and device, and vrf air conditioner |
| WO2022222940A1 (en) * | 2021-04-20 | 2022-10-27 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method therefor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030023046A (en) * | 2001-09-11 | 2003-03-19 | 주식회사 엘지이아이 | Control method for air conditioner |
| CN103925675A (en) * | 2014-03-27 | 2014-07-16 | 广东美的制冷设备有限公司 | Air conditioner and judgment method and device for air conditioner in defrost mode |
| CN104061650A (en) * | 2013-03-19 | 2014-09-24 | 约克广州空调冷冻设备有限公司 | Frosting judgment method of air-cooled heat pump air conditioner |
| CN203869255U (en) * | 2014-01-23 | 2014-10-08 | 珠海格力电器股份有限公司 | Defrosting control device |
| CN104807132A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Defrosting control method and device |
| JP2015161435A (en) * | 2014-02-27 | 2015-09-07 | 株式会社富士通ゼネラル | air conditioner |
| CN104930674A (en) * | 2015-05-14 | 2015-09-23 | 珠海格力电器股份有限公司 | Defrosting control method and defrosting control device for outdoor unit of air conditioning unit as well as air conditioning system |
| CN106288134A (en) * | 2015-06-03 | 2017-01-04 | 陕西华汇能源科技有限公司 | A kind of outdoor machine of air-conditioner defrost detection method and device |
-
2017
- 2017-06-05 CN CN201710414149.8A patent/CN107084507A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030023046A (en) * | 2001-09-11 | 2003-03-19 | 주식회사 엘지이아이 | Control method for air conditioner |
| CN104061650A (en) * | 2013-03-19 | 2014-09-24 | 约克广州空调冷冻设备有限公司 | Frosting judgment method of air-cooled heat pump air conditioner |
| CN203869255U (en) * | 2014-01-23 | 2014-10-08 | 珠海格力电器股份有限公司 | Defrosting control device |
| CN104807132A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Defrosting control method and device |
| JP2015161435A (en) * | 2014-02-27 | 2015-09-07 | 株式会社富士通ゼネラル | air conditioner |
| CN103925675A (en) * | 2014-03-27 | 2014-07-16 | 广东美的制冷设备有限公司 | Air conditioner and judgment method and device for air conditioner in defrost mode |
| CN104930674A (en) * | 2015-05-14 | 2015-09-23 | 珠海格力电器股份有限公司 | Defrosting control method and defrosting control device for outdoor unit of air conditioning unit as well as air conditioning system |
| CN106288134A (en) * | 2015-06-03 | 2017-01-04 | 陕西华汇能源科技有限公司 | A kind of outdoor machine of air-conditioner defrost detection method and device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444034A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Indoor unit anti-freeze control method and air conditioner for air conditioner |
| CN108444047A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN110873408A (en) * | 2018-08-31 | 2020-03-10 | 青岛海尔空调器有限总公司 | Air conditioner and self-cleaning control method thereof |
| CN110873408B (en) * | 2018-08-31 | 2021-08-24 | 重庆海尔空调器有限公司 | Air conditioner and self-cleaning control method thereof |
| CN109798634A (en) * | 2019-01-30 | 2019-05-24 | 海信家电集团股份有限公司 | A kind of Defrost method and air conditioner of air conditioner |
| CN110274352A (en) * | 2019-06-21 | 2019-09-24 | 广州惜源合同能源管理技术服务有限公司 | A kind of energy-saving optimization method and system |
| CN110848886A (en) * | 2019-11-28 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner, defrosting method thereof and computer readable storage medium |
| WO2022127309A1 (en) * | 2020-12-17 | 2022-06-23 | 珠海格力电器股份有限公司 | Defrosting control method and device, and vrf air conditioner |
| WO2022222940A1 (en) * | 2021-04-20 | 2022-10-27 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107084507A (en) | Defrost determination methods, defrost judge system and air-conditioning | |
| CN105674496B (en) | A kind of air-conditioner defrosting method | |
| CN101706145B (en) | Control method for improving comfort of air conditioner | |
| WO2020056960A1 (en) | Temperature control method and apparatus for unit, and air conditioning unit | |
| CN108168030B (en) | Intelligent control method based on refrigeration performance curve | |
| WO2019042042A1 (en) | Control method and device for air conditioner | |
| CN111981640B (en) | Defrosting control method and device, air conditioner and storage medium | |
| CN107940679B (en) | Group control method based on performance curve of water chilling unit of data center | |
| CN109323368B (en) | Air conditioner and defrosting method and device thereof | |
| CN108518805B (en) | Operation control method, operation control device, air conditioner and computer readable storage medium | |
| CN107144438B (en) | The method of on-line checking air conditioner refrigerating Energy Efficiency Ratio and refrigerating capacity | |
| CN103162385A (en) | Device and method of adjusting electronic expansion valve of refrigeration equipment | |
| CN108444159A (en) | Air conditioning control method and device, air-conditioning | |
| CN110749040B (en) | Running state detection method and device, fan, air conditioner and storage medium | |
| CN104764156B (en) | The control method and control device of moveable air conditioner | |
| CN108151231A (en) | Defrosting control method, defrosting control device and air conditioner | |
| CN109210616B (en) | Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium | |
| CN103940163A (en) | Defrosting control method and device | |
| CN108168027A (en) | Defrosting control method, defrosting control device and air conditioner | |
| CN108731196A (en) | A kind of anti-condensation air conditioning control method and device | |
| JP7328498B2 (en) | Information processing device, air conditioner, information processing method, air conditioning method, and program | |
| CN108444134A (en) | Air conditioner defrosting control method | |
| CN108800416A (en) | air conditioner defrosting control method | |
| CN107192084A (en) | The method of on-line checking air-conditioning heating Energy Efficiency Ratio and heating capacity | |
| CN110195913A (en) | A kind of control method slowing down frosting, device and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |
|
| RJ01 | Rejection of invention patent application after publication |