CN106705377A - Defrosting control method and system and heat pump type air conditioner - Google Patents
Defrosting control method and system and heat pump type air conditioner Download PDFInfo
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- CN106705377A CN106705377A CN201710016337.5A CN201710016337A CN106705377A CN 106705377 A CN106705377 A CN 106705377A CN 201710016337 A CN201710016337 A CN 201710016337A CN 106705377 A CN106705377 A CN 106705377A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- 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
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a defrosting control method and system and a heat pump type air conditioner. The defrosting control method for the heat pump type air conditioner comprises the steps that after a heating operation mode of the heat pump type air conditioner is detected, the operation current of an outdoor fan is detected in real time, and the operation time T1 of a compressor is recorded; whether the operation current is larger than a preset operation current or not is judged, timekeeping is started when the operation current is larger than the preset operation current, and the accumulated operation time T2 of the operation current is recorded; whether T2 is larger than a first preset time value or not is judged, and whether T1 is larger than a second preset time value or not is judged when T2 is larger than or equal to the first preset time value; and defrosting is conducted when T1 is larger than the second preset time value. According to the defrosting control method provided by the invention, the effect that defrosting is conducted through the influences of frosting of the air conditioner on loads of the outdoor fan is achieved, whether the air conditioner needs defrosting or not can be judged correctly, the defrosting speed and defrosting efficiency are effectively improved, and the heating efficiency of the air conditioner is improved.
Description
Technical field
The present invention relates to air conditioner controlling technology field, in particular to a kind of defrosting control method, defrosting control system
And heat pump type air conditioner.
Background technology
Air-conditioner, if outdoor temperature is relatively low, humidity is larger, is very easy to cause sky in cold winter heating operation
The outdoor unit frosting of device is adjusted, if rapidly can not be defrosted to outdoor unit in time, the heating performance of air-conditioner will be had a strong impact on.
At present, air-conditioner generally uses reverse cycle defrosting technology, and judges whether to the usually used signal of defrosting and be：
On the one hand, time signal, compressor accumulated running time meets certain condition, and meets certain temperature conditionss；The opposing party
Face, temperature signal, when the temperature signal of certain temperature sensor meets certain condition, or accumulative certain hour, temperature signal is full
Sufficient certain condition, so assert that air-conditioner can be defrosted, but, such Defrost technology is present by variation of ambient temperature etc.
Factor interference problem, cause to correctly identify and whether defrosted, in fact it could happen that vacation defrosting or frost accumulated too it is thick still not
The problem of defrosting.
Another further aspect, the difference of accumulated running time and outdoor fan rotation speed change according to compressor is differentiated simultaneously
Whether defrosted, but, current air-conditioner increases its operation power and electric current by increasing the dutycycle of blower fan so that
Outdoor fan rotating speed reaches setting speed, and often using the control mode for keeping rotation speed of fan constant, this scheme is in outdoor motor
For that can not can be what is used in the case of the alternating current generator of speed governing, but it be direct current generator not to be suitable for current outdoor motor
Frequency conversion heat pump type air-conditioner.
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 defrosting control method for heat pump type air conditioner.
It is another object of the present invention to propose a kind of defrosting control system for heat pump type air conditioner.
A further object of the present invention is to propose a kind of heat pump type air conditioner.
In view of this, the present invention proposes a kind of defrosting control method, and for heat pump type air conditioner, heat pump type air conditioner includes room
Outer blower fan and compressor, defrosting control method include：After heat pump type air conditioner heating operation is detected, real-time detection outdoor fan
Running current, and recording compressed machine running time T 1；Judge running current whether more than default running current；In operation
When electric current is more than default running current, start timing, record the accumulated running time T2 of running current；Judge accumulated running time
Whether T2 is more than or equal to the first preset time value；When accumulated running time T2 is more than or equal to the first preset time value, pressure is judged
Whether the running time T 1 of contracting machine is more than the second preset time value；It is more than the second preset time value in the running time T 1 of compressor
When, defrosted.
Provided by the present invention for the defrosting control method of heat pump type air conditioner, heat pump type air conditioner heating operation is being detected
Afterwards, by the running current of real-time detection outdoor fan, while the running time T 1 of recording compressed machine, and be more than in running current
During default running current, start timing, record the accumulated running time T2 of running current, be more than or equal in accumulated running time T2
First preset time value, and compressor running time T 1 be more than the second preset time value when, defrosted, realize utilization
Influence of the air-conditioner frosting to outdoor fan load defrosts, and the signal for gathering is the running current of outdoor fan, fortune
The accuracy of detection of row electric current is high, reaction speed is fast so that can correctly recognize whether air-conditioner needs to be defrosted, effectively carry
The speed and defrost efficiency of defrost high, improve the heating efficiency of air-conditioner, it is ensured that the good heating effect of air-conditioner, lift user
Experience, improve the competitiveness of product in market.Further, meet pre- more than or equal to first by accumulated running time T2
If time value, transient effects of the interference signal to running current are eliminated, while avoid running current from there is the situation of fluctuation, especially
Its ground, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improves the accuracy whether identification air-conditioner needs to be defrosted.
Further, met by the running time T 1 of compressor and be more than the second preset time value, it is to avoid air-conditioner is frequently defrosted,
The heating effect of air-conditioner is influenceed, while saving electric energy, the experience of user is further lifted.
According to the above-mentioned defrosting control method of the present invention, there can also be following additional technical characteristic：
In the above-mentioned technical solutions, it is preferable that when running current is less than or equal to default running current, continue real-time detection
The running current of outdoor fan.
In the technical scheme, when running current is less than or equal to default running current, illustrate that air-conditioner now need not
Defrosted, by the running current for continuing real-time detection outdoor fan, it is ensured that the normal heating operation of air-conditioner, while improving
The reliability of the defrosting control of air-conditioner.
In the above-mentioned technical solutions, it is preferable that when accumulated running time T2 is less than the first preset time value, continue real-time
Detect the running current of outdoor fan.
In the technical scheme, when accumulated running time T2 is less than the first preset time value, illustrate that air-conditioner is detected
Running current to be more than default running current be probably to be influenceed by other interference signals, or by running current in itself
The influence fluctuated, now air-conditioner need not be defrosted, by continuing the running current of real-time detection outdoor fan, protect
The normal heating operation of air-conditioner is demonstrate,proved, while improving the reliability of the defrosting control of air-conditioner.
In the above-mentioned technical solutions, it is preferable that when the running time T 1 of compressor is less than or equal to the second preset time value,
Continue the running current of real-time detection outdoor fan.
In the technical scheme, when the running time T 1 of compressor is less than or equal to the second preset time value, by continuing
The running current of real-time detection outdoor fan, it is to avoid air-conditioner is frequently defrosted, influences the heating effect of air-conditioner, Jin Erti
The reliability of the defrosting control of air-conditioner high, while saving electric energy, further lifts the experience of user.
In the technical scheme of any of the above-described, it is preferable that after defrost terminates, the operation of real-time detection outdoor fan again
Electric current, and recording compressed machine run time.
In the technical scheme, after defrost terminates, by the running current of real-time detection outdoor fan again, and record
The run time of compressor, realizes air-conditioner circulation and is identified whether air-conditioner needs to be defrosted, and improves air-conditioner
Defrost the reliability for controlling, the heating efficiency of raising air-conditioner, and then ensures the heating effect of air-conditioner, lifts the use of user
Experience.
In the technical scheme of any of the above-described, it is preferable that default running current is outdoor motor running current
120%；First preset time value is 30s；Second preset time value is 45min.
In the technical scheme, it is the 120% of outdoor motor running current, the first Preset Time to preset running current
It is 30s to be worth, and the second preset time value is 45min, by setting reasonably default running current, the first preset time value and the
Two preset time values, realization efficiently controls air-conditioner and is defrosted much sooner, improves the reliability of the defrosting control of air-conditioner
Property.
The present invention also proposes a kind of defrosting control system, for heat pump type air conditioner, heat pump type air conditioner include outdoor fan and
Compressor, defrosting control system includes：Detection unit, for after heat pump type air conditioner heating operation is detected, real-time detection room
The running current of outer blower fan, and the first recording unit, for the running time T 1 of recording compressed machine；Judging unit, for sentencing
Whether disconnected running current is more than default running current；Second recording unit, for when running current is more than default running current,
Start timing, record the accumulated running time T2 of running current；Judging unit, is additionally operable to judge whether accumulated running time T2 is big
In equal to the first preset time value；And be additionally operable to, when cumulative time T2 is more than or equal to the first preset time value, judge compression
Whether the running time T 1 of machine is more than the second preset time value；Defrosting unit, for the running time T 1 in compressor more than the
During two preset time values, defrosted.
Provided by the present invention for the defrosting control system of heat pump type air conditioner, by detection unit, pump type heat is being detected
After air-conditioning heating operation, the running current of real-time detection outdoor fan, while by the first recording unit, the fortune of recording compressed machine
Row time T1, by judging unit, when judging that running current is more than default running current, by the second recording unit, starts meter
When, the accumulated running time T2 of running current is recorded, then by judging unit, judge that accumulated running time T2 is more than or equal to first
Preset time value, and compressor running time T 1 be more than the second preset time value when, by the unit that defrosts, defrosted,
The influence using air-conditioner frosting to outdoor fan load is realized to defrost, and the signal for gathering is the fortune of outdoor fan
Row electric current, the accuracy of detection of running current is high, reaction speed is fast so that can correctly recognize whether air-conditioner needs to be removed
Frost, effectively improves the speed and defrost efficiency of defrost, improves the heating efficiency of air-conditioner, it is ensured that air-conditioner it is good heat effect
Really, the experience of user is lifted, the competitiveness of product in market is improved.Further, meet big by accumulated running time T2
In equal to the first preset time value, transient effects of the interference signal to running current are eliminated, while avoiding running current from existing
The situation of fluctuation, in particular, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improves whether identification air-conditioner needs to carry out
The accuracy of defrosting.Further, met by the running time T 1 of compressor and be more than the second preset time value, it is to avoid air-conditioner
Frequently defrosted, influenceed the heating effect of air-conditioner, while saving electric energy, further lifted the experience of user.
According to the above-mentioned defrosting control system of the present invention, there can also be following additional technical characteristic：
In the above-mentioned technical solutions, it is preferable that detection unit, it is additionally operable to be less than or equal to default running current in running current
When, continue the running current of real-time detection outdoor fan.
In the technical scheme, when running current is less than or equal to default running current, illustrate that air-conditioner now need not
Defrosted, by detection unit, continued the running current of real-time detection outdoor fan, it is ensured that the normal of air-conditioner is heated fortune
OK, while improving the reliability of the defrosting control of air-conditioner.
In the above-mentioned technical solutions, it is preferable that detection unit, it is additionally operable to when accumulated running time T2 is default less than first
Between when being worth, continue the running current of real-time detection outdoor fan.
In the technical scheme, when accumulated running time T2 is less than the first preset time value, illustrate that air-conditioner is detected
Running current to be more than default running current be probably to be influenceed by other interference signals, or by running current in itself
The influence fluctuated, now air-conditioner need not be defrosted, by detection unit, continue the fortune of real-time detection outdoor fan
Row electric current, it is ensured that the normal heating operation of air-conditioner, while improving the reliability of the defrosting control of air-conditioner.
In the above-mentioned technical solutions, it is preferable that detection unit, running time T 1 in compressor is additionally operable to less than or equal to the
During two preset time values, continue the running current of real-time detection outdoor fan.
In the technical scheme, when the running time T 1 of compressor is less than or equal to the second preset time value, by detection
Unit, continues the running current of real-time detection outdoor fan, it is to avoid air-conditioner is frequently defrosted, and influence air-conditioner heats effect
Really, so improve air-conditioner defrosting control reliability, while save electric energy, further lifted user experience.
In the technical scheme of any of the above-described, it is preferable that after defrost terminates, detection unit, again outside real-time detection room
The running current of blower fan, and the first recording unit, the run time of recording compressed machine.
In the technical scheme, after defrost terminates, by detection unit, the operation of real-time detection outdoor fan is electric again
Stream, and by the first recording unit, the run time of recording compressed machine, realizing air-conditioner circulation and being identified air-conditioner is
No needs are defrosted, and improve the reliability of the defrosting control of air-conditioner, improve the heating efficiency of air-conditioner, and then ensure air-conditioning
The heating effect of device, lifts the experience of user.
In the technical scheme of any of the above-described, it is preferable that default running current is outdoor motor running current
120%；First preset time value is 30s；Second preset time value is 45min.
In the technical scheme, it is the 120% of outdoor motor running current, the first Preset Time to preset running current
It is 30s to be worth, and the second preset time value is 45min, by setting reasonably default running current, the first preset time value and the
Two preset time values, realization efficiently controls air-conditioner and is defrosted much sooner, improves the reliability of the defrosting control of air-conditioner
Property.
The present invention also proposes a kind of heat pump type air conditioner, and heat pump type air conditioner includes outdoor fan and compressor, heat pump type air conditioner
Also include the defrosting control system for heat pump type air conditioner described in any of the above-described technical scheme.
The heat pump type air conditioner that the present invention is provided, by using the defrosting control system for heat pump type air conditioner, realizing profit
Influence with air-conditioner frosting to outdoor fan load defrosts, and the signal for gathering is the running current of outdoor fan,
The accuracy of detection of running current is high, reaction speed is fast so that can correctly recognize whether air-conditioner needs to be defrosted, effectively
The speed and defrost efficiency of defrost are improved, the heating efficiency of air-conditioner is improved, it is ensured that the good heating effect of air-conditioner, lifting is used
The experience at family, improves the competitiveness of product in market.Further, met by accumulated running time T2 and be more than or equal to first
Preset time value, eliminates transient effects of the interference signal to running current, while avoid running current from there is the situation of fluctuation,
In particular, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, that improves whether identification air-conditioner need to be defrosted is correct
Rate.Further, met by the running time T 1 of compressor and be more than the second preset time value, it is to avoid air-conditioner is frequently removed
Frost, influences the heating effect of air-conditioner, while saving electric energy, further lifts the experience of user.
Additional aspect of the invention and advantage will become obvious in following description section, or by practice of the invention
Recognize.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet of the defrosting control method for heat pump type air conditioner of one embodiment of the present of invention；
Fig. 2 is the schematic diagram of the defrosting control system for heat pump type air conditioner of one embodiment of the present of invention；
Fig. 3 is the schematic diagram of the heat pump type air conditioner of one embodiment of the present of invention；
Fig. 4 is the schematic diagram of the heat pump type air conditioner of an alternative embodiment of the invention.
Specific 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 to be further described in detail the present invention.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 in order to fully understand the present invention, but, 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 of the specific embodiment opened.
As shown in figure 1, the flow of the defrosting control method for heat pump type air conditioner of one embodiment of the present of invention is illustrated
Figure：
Step 102, detects heat pump type air conditioner heating operation；
Step 104, including step 1040 and step 1042；Step 1040, the running current of real-time detection outdoor fan；Together
Shi Jinhang steps 1042, the running time T 1 of recording compressed machine；
Whether step 106, judge running current more than default running current；It is more than default running current in running current
When, carry out step 108；
Step 108, starts timing, records the accumulated running time T2 of running current；
Whether step 110, judge accumulated running time T2 more than or equal to the first preset time value；In accumulated running time T2
During more than or equal to the first preset time value, step 112 is carried out；
Whether step 112, judge the running time T 1 of compressor more than the second preset time value；In the operation of compressor
Between T1 be more than the second preset time value when, carry out step 114；
Step 114, is defrosted.
Provided by the present invention for the defrosting control method of heat pump type air conditioner, heat pump type air conditioner heating operation is being detected
Afterwards, by the running current of real-time detection outdoor fan, while the running time T 1 of recording compressed machine, and be more than in running current
During default running current, start timing, record the accumulated running time T2 of running current, be more than or equal in accumulated running time T2
First preset time value, and compressor running time T 1 be more than the second preset time value when, defrosted, realize utilization
Influence of the air-conditioner frosting to outdoor fan load defrosts, and the signal for gathering is the running current of outdoor fan, fortune
The accuracy of detection of row electric current is high, reaction speed is fast so that can correctly recognize whether air-conditioner needs to be defrosted, effectively carry
The speed and defrost efficiency of defrost high, improve the heating efficiency of air-conditioner, it is ensured that the good heating effect of air-conditioner, lift user
Experience, improve the competitiveness of product in market.Further, meet pre- more than or equal to first by accumulated running time T2
If time value, transient effects of the interference signal to running current are eliminated, while avoid running current from there is the situation of fluctuation, especially
Its ground, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improves the accuracy whether identification air-conditioner needs to be defrosted.
Further, met by the running time T 1 of compressor and be more than the second preset time value, it is to avoid air-conditioner is frequently defrosted,
The heating effect of air-conditioner is influenceed, while saving electric energy, the experience of user is further lifted.
As shown in figure 1, the flow of the defrosting control method for heat pump type air conditioner of an alternative embodiment of the invention is shown
It is intended to：
Step 102, detects heat pump type air conditioner heating operation；
Step 104, including step 1040 and step 1042；Step 1040, the running current of real-time detection outdoor fan；Together
Shi Jinhang steps 1042, the running time T 1 of recording compressed machine；
Whether step 106, judge running current more than default running current；It is more than default running current in running current
When, carry out step 108；When running current is less than or equal to default running current, return to step 1040；
Step 108, starts timing, records the accumulated running time T2 of running current；
Whether step 110, judge accumulated running time T2 more than or equal to the first preset time value；In accumulated running time T2
During more than or equal to the first preset time value, step 112 is carried out；
Whether step 112, judge the running time T 1 of compressor more than the second preset time value；In the operation of compressor
Between T1 be more than the second preset time value when, carry out step 114；
Step 114, is defrosted.
In this embodiment, when running current is less than or equal to default running current, illustrate that air-conditioner need not now enter
Row defrosting, by the running current for continuing real-time detection outdoor fan, it is ensured that the normal heating operation of air-conditioner, while improving empty
Adjust the reliability of the defrosting control of device.
As shown in figure 1, the flow of the defrosting control method for heat pump type air conditioner of yet another embodiment of the present invention is shown
It is intended to：
Step 102, detects heat pump type air conditioner heating operation；
Step 104, including step 1040 and step 1042；Step 1040, the running current of real-time detection outdoor fan；Together
Shi Jinhang steps 1042, the running time T 1 of recording compressed machine；
Whether step 106, judge running current more than default running current；It is more than default running current in running current
When, carry out step 108；When running current is less than or equal to default running current, return to step 1040；
Step 108, starts timing, records the accumulated running time T2 of running current；
Whether step 110, judge accumulated running time T2 more than or equal to the first preset time value；In accumulated running time T2
During more than or equal to the first preset time value, step 112 is carried out；When accumulated running time T2 is less than the first preset time value, return
Return step 1040；
Whether step 112, judge the running time T 1 of compressor more than the second preset time value；In the operation of compressor
Between T1 be more than the second preset time value when, carry out step 114；
Step 114, is defrosted.
In this embodiment, when accumulated running time T2 is less than the first preset time value, illustrate what air-conditioner was detected
It is probably to be influenceed by other interference signals that running current is more than default running current, or is sent out in itself by running current
The influence of fluctuation is given birth to, now air-conditioner need not be defrosted, by the running current for continuing real-time detection outdoor fan, it is ensured that
The normal heating operation of air-conditioner, while improving the reliability of the defrosting control of air-conditioner.
As shown in figure 1, the flow of the defrosting control method for heat pump type air conditioner of yet another embodiment of the present invention is shown
It is intended to：
Step 102, detects heat pump type air conditioner heating operation；
Step 104, including step 1040 and step 1042；Step 1040, the running current of real-time detection outdoor fan；Together
Shi Jinhang steps 1042, the running time T 1 of recording compressed machine；
Whether step 106, judge running current more than default running current；It is more than default running current in running current
When, carry out step 108；When running current is less than or equal to default running current, return to step 1040；
Step 108, starts timing, records the accumulated running time T2 of running current；
Whether step 110, judge accumulated running time T2 more than or equal to the first preset time value；In accumulated running time T2
During more than or equal to the first preset time value, step 112 is carried out；When accumulated running time T2 is less than the first preset time value, return
Return step 1040；
Whether step 112, judge the running time T 1 of compressor more than the second preset time value；In the operation of compressor
Between T1 be more than the second preset time value when, carry out step 114；The second Preset Time is less than or equal in the running time T 1 of compressor
During value, return to step 1040；
Step 114, is defrosted.
In this embodiment, it is real by continuing when the running time T 1 of compressor is less than or equal to the second preset time value
When detection outdoor fan running current, it is to avoid air-conditioner is frequently defrosted, influence air-conditioner heating effect, and then improve
The reliability of the defrosting control of air-conditioner, while saving electric energy, further lifts the experience of user.
As shown in figure 1, the flow of the defrosting control method for heat pump type air conditioner of yet another embodiment of the present invention is shown
It is intended to：
Step 102, detects heat pump type air conditioner heating operation；
Step 104, including step 1040 and step 1042；Step 1040, the running current of real-time detection outdoor fan；Together
Shi Jinhang steps 1042, the running time T 1 of recording compressed machine；
Whether step 106, judge running current more than default running current；It is more than default running current in running current
When, carry out step 108；When running current is less than or equal to default running current, return to step 1040；
Step 108, starts timing, records the accumulated running time T2 of running current；
Whether step 110, judge accumulated running time T2 more than or equal to the first preset time value；In accumulated running time T2
During more than or equal to the first preset time value, step 112 is carried out；When accumulated running time T2 is less than the first preset time value, return
Return step 1040；
Whether step 112, judge the running time T 1 of compressor more than the second preset time value；In the operation of compressor
Between T1 be more than the second preset time value when, carry out step 114；The second Preset Time is less than or equal in the running time T 1 of compressor
During value, return to step 1040；
Step 114, is defrosted；
Step 116, after defrost terminates, return to step 104.
In this embodiment, after defrost terminates, by the running current of real-time detection outdoor fan again, and record pressure
The run time of contracting machine, realizes air-conditioner circulation and is identified whether air-conditioner needs to be defrosted, and improves removing for air-conditioner
The reliability of frost control, the heating efficiency of raising air-conditioner, and then ensure the heating effect of air-conditioner, lift the use body of user
Test.
In one embodiment of the invention, it is preferable that default running current is outdoor motor running current
120%；First preset time value is 30s；Second preset time value is 45min.
In this embodiment, it is the 120% of outdoor motor running current, the first preset time value to preset running current
It is 30s, the second preset time value is 45min, by setting reasonably default running current, the first preset time value and second
Preset time value, realization efficiently controls air-conditioner and is defrosted much sooner, improves the reliability of the defrosting control of air-conditioner.
In specific embodiment, by taking a certain full direct current varied-frequency air conditioner as an example, its direct current outdoor motor is under 850rpm rotating speeds
Power is that the normal operating current under 100W, 220V is 0.45A, when its running current is more than 0.45* (1+20%)=0.54A
When, it is believed that heat exchanger frosting is more, larger to windage effect, and air-conditioner needs to be defrosted.
As shown in Fig. 2 the signal of the defrosting control system 200 for heat pump type air conditioner of one embodiment of the present of invention
Figure：
Detection unit 202, for after heat pump type air conditioner heating operation is detected, the operation of real-time detection outdoor fan to be electric
Stream, and
First recording unit 204, for the running time T 1 of recording compressed machine；
Judging unit 206, for judging running current whether more than default running current；
Second recording unit 208, for when running current is more than default running current, starting timing, record operation electricity
The accumulated running time T2 of stream；
Whether judging unit 206, be additionally operable to judge accumulated running time T2 more than or equal to the first preset time value；And also
Whether the running time T 1 for when cumulative time T2 is more than or equal to the first preset time value, judging compressor is pre- more than second
If time value；
Defrosting unit 210, for when the running time T 1 of compressor is more than the second preset time value, being defrosted.
Provided by the present invention for the defrosting control system of heat pump type air conditioner, by detection unit 202, heat pump is being detected
After the operation of type air-conditioning heating, the running current of real-time detection outdoor fan, while by the first recording unit 204, recording compressed
The running time T 1 of machine, by judging unit 206, when judging that running current is more than default running current, by the second record
Unit 208, starts timing, records the accumulated running time T2 of running current, then by judging unit 206, when judging accumulative operation
Between T2 be more than or equal to the first preset time value, and compressor running time T 1 be more than the second preset time value when, by removing
White unit 210, is defrosted, and is realized the influence using air-conditioner frosting to outdoor fan load and is defrosted, and gathers
Signal be the running current of outdoor fan, the accuracy of detection of running current is high, reaction speed is fast so that can correctly recognize sky
Adjust whether device needs to be defrosted, effectively improve the speed and defrost efficiency of defrost, improve the heating efficiency of air-conditioner, it is ensured that
The good heating effect of air-conditioner, lifts the experience of user, improves the competitiveness of product in market.Further, by tired
Meter running time T 2 is met more than or equal to the first preset time value, eliminates transient effects of the interference signal to running current, together
When avoid running current exist fluctuation situation, in particular, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improve identification
Whether air-conditioner needs the accuracy for being defrosted.Further, meet pre- more than second by the running time T 1 of compressor
If time value, it is to avoid air-conditioner is frequently defrosted, the heating effect of air-conditioner is influenceed, while saving electric energy, further carried
Rise the experience of user.
In one embodiment of the invention, it is preferable that detection unit 202, it is additionally operable in running current less than or equal to pre-
If during running current, continuing the running current of real-time detection outdoor fan.
In this embodiment, when running current is less than or equal to default running current, illustrate that air-conditioner need not now enter
Row defrosting, by detection unit 202, continues the running current of real-time detection outdoor fan, it is ensured that the normal of air-conditioner heats fortune
OK, while improving the reliability of the defrosting control of air-conditioner.
In one embodiment of the invention, it is preferable that detection unit 202, it is additionally operable to be less than in accumulated running time T2
During the first preset time value, continue the running current of real-time detection outdoor fan.
In this embodiment, when accumulated running time T2 is less than the first preset time value, illustrate what air-conditioner was detected
It is probably to be influenceed by other interference signals that running current is more than default running current, or is sent out in itself by running current
The influence of fluctuation is given birth to, now air-conditioner need not be defrosted, by detection unit 202, continue real-time detection outdoor fan
Running current, it is ensured that the normal heating operation of air-conditioner, while improving the reliability of the defrosting control of air-conditioner.
In one embodiment of the invention, it is preferable that detection unit 202, it is additionally operable to the running time T 1 in compressor
During less than or equal to the second preset time value, continue the running current of real-time detection outdoor fan.
In this embodiment, it is single by detecting when the running time T 1 of compressor is less than or equal to the second preset time value
Unit 202, continues the running current of real-time detection outdoor fan, it is to avoid air-conditioner is frequently defrosted, and influences heating for air-conditioner
Effect, and then the reliability of the defrosting control of air-conditioner is improved, while saving electric energy, further lift the use body of user
Test.
In one embodiment of the invention, it is preferable that after defrost terminates, detection unit 202, again outside real-time detection room
The running current of blower fan, and the first recording unit 204, the run time of recording compressed machine.
In this embodiment, after defrost terminates, by detection unit 202, the operation of real-time detection outdoor fan is electric again
Stream, and the first recording unit 204, the run time of recording compressed machine, realizing air-conditioner circulation and being identified air-conditioner is
No needs are defrosted, and improve the reliability of the defrosting control of air-conditioner, improve the heating efficiency of air-conditioner, and then ensure air-conditioning
The heating effect of device, lifts the experience of user.
In one embodiment of the invention, it is preferable that default running current is outdoor motor running current
120%；First preset time value is 30s；Second preset time value is 45min.
In this embodiment, it is the 120% of outdoor motor running current, the first preset time value to preset running current
It is 30s, the second preset time value is 45min, by setting reasonably default running current, the first preset time value and second
Preset time value, realization efficiently controls air-conditioner and is defrosted much sooner, improves the reliability of the defrosting control of air-conditioner.
In specific embodiment, by taking a certain full direct current varied-frequency air conditioner as an example, its direct current outdoor motor is under 850rpm rotating speeds
Power is that the normal operating current under 100W, 220V is 0.45A, when its running current is more than 0.45* (1+20%)=0.54A
When, it is believed that heat exchanger frosting is more, larger to windage effect, and air-conditioner needs to be defrosted.
As shown in figure 3, the schematic diagram of the heat pump type air conditioner 300 of one embodiment of the present of invention：Heat pump type air conditioner 300 includes
Outdoor fan 302 and compressor 304, also control system including the defrosting for heat pump type air conditioner described in any of the above-described technical scheme
System 306.
The heat pump type air conditioner 300 that the present invention is provided, it is real by using the defrosting control system 302 for heat pump type air conditioner
Show the influence using air-conditioner frosting to the load of outdoor fan 302 to defrost, and the signal for gathering is outdoor fan 302
Running current, the accuracy of detection of running current is high, reaction speed is fast so that can correctly recognize whether air-conditioner needs to carry out
Defrosting, effectively improves the speed and defrost efficiency of defrost, improves the heating efficiency of air-conditioner, it is ensured that air-conditioner is good to be heated
Effect, lifts the experience of user, improves the competitiveness of product in market.Further, met by accumulated running time T2
More than or equal to the first preset time value, transient effects of the interference signal to running current are eliminated, while avoiding running current from depositing
Fluctuation situation, in particular, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improve identification air-conditioner whether need into
The accuracy of row defrosting.Further, met by the running time T 1 of compressor 304 and be more than the second preset time value, it is to avoid
Air-conditioner is frequently defrosted, and influences the heating effect of air-conditioner, while saving electric energy, further lifts the use body of user
Test.
Specific embodiment one, as shown in figure 4, the schematic diagram of the heat pump type air conditioner 400 of one embodiment of the present of invention：Including
Compressor 402；Evaporator 404, one end of evaporator 404 is connected to one end of compressor；Throttling arrangement 406, throttling arrangement 406
One end be connected to the other end of evaporator 404, the other end is connected to one end of condenser 408；Condenser 408, condenser 408
The other end be connected to the other end of compressor 402；The (not shown) of outdoor fan 410, indoor fan 412 (do not show in figure
Go out), the (not shown) of four-way valve 414, the (not shown) of detection unit 416, the first recording unit 418 (do not show in figure
Go out), the (not shown) of judging unit 420, the (not shown) of the second recording unit 422, judging unit 424 (do not show in figure
Go out) and the defrosting (not shown) of unit 426.
The heat pump type air conditioner 400 that the present invention is provided, by detection unit 416, fortune is heated heat pump type air conditioner 400 is detected
After row, the running current of real-time detection outdoor fan 410, while by the first recording unit 418, the fortune of recording compressed machine 402
Row time T1, by judging unit 420, when judging that running current is more than default running current, by the second recording unit 422,
Start timing, record the accumulated running time T2 of running current, then by judging unit 420, judge that accumulated running time T2 is big
In equal to the first preset time value, and the running time T 1 of compressor 402 is when being more than the second preset time value, single by defrosting
Unit 426, is defrosted, and is realized the influence using air-conditioner frosting to outdoor fan load and is defrosted, and the letter for gathering
Number it is the running current of outdoor fan, the accuracy of detection of running current is high, reaction speed is fast so that can correctly recognize air-conditioner
Whether need to be defrosted, effectively improve the speed and defrost efficiency of defrost, improve the heating efficiency of air-conditioner, it is ensured that air-conditioning
The good heating effect of device, lifts the experience of user, improves the competitiveness of product in market.Further, by accumulative fortune
Row time T2 is met more than or equal to the first preset time value, transient effects of the interference signal to running current is eliminated, while keeping away
Exempt from the situation that running current has fluctuation, in particular, it is to avoid the larger erroneous judgement for bringing of air-conditioner starting current, improve identification air-conditioning
Whether device needs the accuracy for being defrosted.Further, met by the running time T 1 of compressor 402 and preset more than second
Time value, it is to avoid air-conditioner is frequently defrosted, influences the heating effect of air-conditioner, while saving electric energy, is further lifted
The experience of user.
Further, when running current is less than or equal to default running current, illustrate that air-conditioner need not now be removed
Frost, by detection unit 416, continues the running current of real-time detection outdoor fan 410, it is ensured that the normal of air-conditioner heats fortune
OK, while improving the reliability of the defrosting control of air-conditioner.
Further, when accumulated running time T2 is less than the first preset time value, the operation that air-conditioner is detected is illustrated
It is probably to be influenceed by other interference signals that electric current is more than default running current, or ripple is occurred in itself by running current
Dynamic influence, now air-conditioner need not be defrosted, by detection unit 416, continue the fortune of real-time detection outdoor fan 410
Row electric current, it is ensured that the normal heating operation of air-conditioner, while improving the reliability of the defrosting control of air-conditioner.
Further, when the running time T 1 of compressor 402 is less than or equal to the second preset time value, by detection unit
416, continue the running current of real-time detection outdoor fan, it is to avoid air-conditioner is frequently defrosted, influence air-conditioner heats effect
Really, so improve air-conditioner defrosting control reliability, while save electric energy, further lifted user experience.
Further, after defrost terminates, by detection unit 416, the operation of real-time detection outdoor fan 410 is electric again
Stream, and the first recording unit 418, the run time of recording compressed machine 402, realize air-conditioner circulation and are identified air-conditioner
Whether need to be defrosted, improve the reliability of the defrosting control of air-conditioner, improve the heating efficiency of air-conditioner, and then ensure empty
The heating effect of device is adjusted, the experience of user is lifted.
Preferably, it is the 120% of outdoor motor running current to preset running current；First preset time value is 30s；
Second preset time value is 45min.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (13)
1. a kind of defrosting control method, for heat pump type air conditioner, it is characterised in that the heat pump type air conditioner include outdoor fan and
Compressor, the defrosting control method includes：
After the heat pump type air conditioner heating operation is detected, the running current of outdoor fan described in real-time detection, and record
The running time T 1 of the compressor；
Judge the running current whether more than default running current；
When the running current is more than the default running current, start timing, record the accumulative operation of the running current
Time T2；
Judge the accumulated running time T2 whether more than or equal to the first preset time value；
When the accumulated running time T2 is more than or equal to first preset time value, the run time of the compressor is judged
Whether T1 is more than the second preset time value；
When the running time T 1 of the compressor is more than second preset time value, defrosted.
2. defrosting control method according to claim 1, it is characterised in that also include：
When the running current is less than or equal to the default running current, continue the operation electricity of outdoor fan described in real-time detection
Stream.
3. defrosting control method according to claim 1, it is characterised in that also include：
When the accumulated running time T2 is less than first preset time value, continue the fortune of outdoor fan described in real-time detection
Row electric current.
4. defrosting control method according to claim 1, it is characterised in that also include：
When the running time T 1 of the compressor is less than or equal to second preset time value, continue outdoor described in real-time detection
The running current of blower fan.
5. defrosting control method according to any one of claim 1 to 4, it is characterised in that also include：
After defrost terminates, the running current of outdoor fan described in real-time detection again, and when recording the operation of the compressor
Between.
6. defrosting control method according to any one of claim 1 to 4, it is characterised in that
The default running current is the 120% of outdoor motor running current；
First preset time value is 30s；
Second preset time value is 45min.
7. a kind of defrosting control system, for heat pump type air conditioner, it is characterised in that the heat pump type air conditioner include outdoor fan and
Compressor, the defrosting control system includes：
Detection unit, for after the heat pump type air conditioner heating operation is detected, the operation of outdoor fan described in real-time detection
Electric current, and
First recording unit, the running time T 1 for recording the compressor；
Judging unit, for judging the running current whether more than default running current；
Second recording unit, for when the running current is more than the default running current, starting timing, records the fortune
The accumulated running time T2 of row electric current；
Whether the judging unit, be additionally operable to judge the accumulated running time T2 more than or equal to the first preset time value；And
It is additionally operable to when the cumulative time T2 is more than or equal to first preset time value, when judging the operation of the compressor
Between T1 whether be more than the second preset time value；
Defrosting unit, for when the running time T 1 of the compressor is more than second preset time value, being defrosted.
8. defrosting control system according to claim 7, it is characterised in that
The detection unit, is additionally operable to, when the running current is less than or equal to the default running current, continue real-time detection
The running current of the outdoor fan.
9. defrosting control system according to claim 7, it is characterised in that
The detection unit, is additionally operable to, when the accumulated running time T2 is less than first preset time value, continue real-time
Detect the running current of the outdoor fan.
10. defrosting control system according to claim 7, it is characterised in that
The detection unit, is additionally operable to when the running time T 1 of the compressor is less than or equal to second preset time value,
Continue the running current of outdoor fan described in real-time detection.
The 11. defrosting control system according to any one of claim 7 to 10, it is characterised in that
After defrost terminates, the detection unit, the again running current of outdoor fan described in real-time detection, and first note
Record unit, records the run time of the compressor.
The 12. defrosting control system according to any one of claim 7 to 10, it is characterised in that
The default running current is the 120% of outdoor motor running current；
First preset time value is 30s；
Second preset time value is 45min.
A kind of 13. heat pump type air conditioners, the heat pump type air conditioner includes outdoor fan and compressor, it is characterised in that the heat pump
Type air-conditioning also includes the defrosting control system as any one of claim 7 to 12.
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| CN201710016337.5A CN106705377A (en) | 2017-01-10 | 2017-01-10 | Defrosting control method and system and heat pump type air conditioner |
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| CN109269019A (en) * | 2018-10-10 | 2019-01-25 | 珠海格力电器股份有限公司 | Defrosting control method and device and heating equipment |
| CN109386966A (en) * | 2018-09-21 | 2019-02-26 | 珠海格力电器股份有限公司 | Defrosting control method and device for heat pump unit, storage medium and heat pump unit |
| CN109695937A (en) * | 2017-10-20 | 2019-04-30 | 奥克斯空调股份有限公司 | A kind of air-conditioner defrosting control method |
| CN110441584A (en) * | 2019-08-26 | 2019-11-12 | 珠海格力电器股份有限公司 | Equipment running state monitoring method, device, storage medium and system |
| CN110542175A (en) * | 2019-09-06 | 2019-12-06 | 珠海格力电器股份有限公司 | air conditioner defrosting method |
| CN110617603A (en) * | 2019-09-27 | 2019-12-27 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and computer-readable storage medium |
| CN111981640A (en) * | 2020-08-19 | 2020-11-24 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and storage medium |
| CN112032941A (en) * | 2020-08-25 | 2020-12-04 | 海信（山东）空调有限公司 | Control method of air conditioner |
| CN114135976A (en) * | 2021-11-22 | 2022-03-04 | 珠海格力电器股份有限公司 | Method, device and equipment for detecting entering defrosting and air conditioning unit |
| CN114516503A (en) * | 2022-03-01 | 2022-05-20 | 厦门芯阳科技股份有限公司 | Intelligent garbage can cover opening and closing control method and device and intelligent garbage can |
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| CN114516503A (en) * | 2022-03-01 | 2022-05-20 | 厦门芯阳科技股份有限公司 | Intelligent garbage can cover opening and closing control method and device and intelligent garbage can |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |