CN109084444A - A kind of method and air-conditioning inhibiting condenser for outdoor unit of air conditioner frosting - Google Patents
A kind of method and air-conditioning inhibiting condenser for outdoor unit of air conditioner frosting Download PDFInfo
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- CN109084444A CN109084444A CN201810839143.XA CN201810839143A CN109084444A CN 109084444 A CN109084444 A CN 109084444A CN 201810839143 A CN201810839143 A CN 201810839143A CN 109084444 A CN109084444 A CN 109084444A
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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
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of methods and air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting, include the following steps: S1: the condenser coil temperature T outside real-time detection room when air-conditioning is in heating mode；S2: judge whether the T of detection is less than or equal to the first temperature threshold T1, S3 is executed if to be, otherwise executes S1；S3: judge that the time carries out timing according to suppression frost, if T is consistently less than equal to T in timing course1, then air-conditioning enters suppression frost control after timing, executes S4, otherwise executes S1；S4: suppression frost control: control outdoor fan carries out Positive work and antiport according to preset Positive work time and antiport time in turn and recycles at least once.The present invention can effectively inhibit the attachment of frostwork, significantly delay heat pamp, greatly reduce the frequency of defrosting, and reducing leads to the time of fluctuations in indoor temperature because shutting down defrosting, improve the comfort of air-conditioning.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of method and sky for inhibiting condenser for outdoor unit of air conditioner frosting
It adjusts.
Background technique
With the increasingly raising of people's living standard, air conditioner has become the indispensable electric appliance of each family, air conditioner
Refrigeration or heating operations are actually to be absorbed in heat pump heating operation by outdoor condenser in the process for carrying out heat exchange
The heat of outside, air-conditioning system transfer heat to indoor and carry out heat release.It, will be outdoor cold when outdoor temperature is lower
There is white formation on condenser, to influence outside endothermic effect, and then influences heating effect.In the conventional technology to the place of frosting
Reason method is: when frosting to a certain extent when.Air-conditioning system can be commutated by four-way valve, from indoor heat absorption to outdoor heat release, be removed
Remove the frost on outdoor condenser.Therefore, in heating, outdoor condenser can frequent frosting defrost, room temperature wave will be caused
It is dynamic, affect the comfort of air-conditioning.
A kind of control method for alleviating frosting of outdoor condenser of air conditioner is disclosed in patent of invention CN101975440B, is led to
Cross whether detection interior evaporator coil temperature T1 meets, T1 >=N, wherein 31 DEG C≤N≤50 DEG C, if it is, continuing to test
Outdoor condenser coil temperature T2, otherwise carries out defrosting processing to outdoor condenser；When T2≤0 DEG C and certain time, then
Fan motor rotational speed inside and outside regulation room carries out that outdoor condenser frosting is delayed to handle, and by above-mentioned processing, is guaranteeing that interior is normal
Heat pamp is delayed after heating effect.Although this control method more can timely inhibit to condense frosting, there is reality
Verify it is bright, due to frosting initial stage, frost layer with dendritic frostwork generate based on, only by increase rotation speed of the fan, only unidirectionally
Wind-force can not often completely inhibit the attachment of frostwork, the frostwork that short transverse increases can be blown down or be blowed to far from air port position
It sets, so that frost layer successively thickens in one direction, and the effect is unsatisfactory for delaying frosting, less easy-clear.
Summary of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of attachment that can effectively inhibit frostwork, significant
Delay heat pamp, substantially reduces the frequency of defrosting, reduces because shutdown defrosting causes the time of fluctuations in indoor temperature, promotion empty
The method and air-conditioning of a kind of inhibition condenser for outdoor unit of air conditioner frosting of the comfort of tune.
A method of inhibiting condenser for outdoor unit of air conditioner frosting, includes the following steps:
S1: when air-conditioning is in heating mode, condenser coil temperature T outside real-time detection room；
S2: judge whether the temperature T of detection is less than or equal to the first temperature threshold T1, S3 is executed if to be, it is no
Then return to step S1；
S3: judge time progress timing according to preset suppression frost, if temperature T described in timing course is consistently less than equal to the
One temperature threshold T1, then air-conditioning enters suppression frost control after timing, executes step S4；Otherwise S1 is returned to step；
S4: suppression frost control: control outdoor fan carries out in turn according to preset Positive work time and antiport time
Positive work and antiport simultaneously recycle at least once.
Further, include the following steps:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value,
T is judged: if T is less than or equal to the first temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, this method
Terminate；If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to the
Two temperature threshold T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates.
Further, include the following steps:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value,
T is judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And it is less than
Second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then follow the steps S7；
S6: judge that the time carries out timing according to preset suppression frost, be equal to if the temperature T described in timing course is consistently less than
First temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, this method terminates；Otherwise S4 is returned to step；
S7: judge that the time carries out timing according to preset suppression frost, be equal to if the temperature T described in timing course is consistently greater than
Second temperature threshold value T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates；Otherwise it returns and holds
Row step S4.
Further, include the following steps:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value,
T is judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And it is less than
Second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then air-conditioning stops suppression frost control,
Outdoor fan restores to operate normally, and this method terminates；
S6: judged: if the revolving speed of outdoor fan promotes number and is not up to revolving speed promotion frequency threshold value, by outdoor wind
The revolving speed of machine is promoted once, returns to step S4；Otherwise air-conditioning stops suppression frost control, controls into defrosting, this method terminates.
A kind of air-conditioning inhibiting condenser for outdoor unit of air conditioner frosting, including outdoor fan, further includes:
Control unit, the outdoor condenser coil temperature T for being detected according to temperature sensor judge whether it is less than
In the first temperature threshold T1Timing module is allowed to carry out timing if then issuing instruction, if until timing terminates the temperature T always
Less than or equal to the first temperature threshold T1The white control instruction of suppression is then executed, that is, controls the outdoor fan according to preset Positive work
Time and antiport time carry out Positive work and antiport in turn and recycle at least once；
Timing module judges that the time carries out timing according to preset suppression frost when for receiving instruction；
Temperature sensor is used for when air-conditioning is in heating mode, condenser coil temperature outside real-time detection room, and will be warm
Degree information is sent to control unit；
Memory module, for saving preset value, including the first temperature threshold T1, the Positive work time, the antiport time,
Suppression frost judges the time.
Further, described control unit is also used to the cycle-index n of the Positive work and antiport in outdoor fan
When reaching preset cycle-index threshold value, T is judged: if T is less than or equal to the first temperature threshold T1, then issue instruction and stop
Suppression frost control, and execute the instruction of defrosting control；If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then execute
Press down white control instruction；If T is more than or equal to second temperature threshold value T2, then issue instruction and stop suppression frost control, control outdoor fan is extensive
It is multiple to operate normally；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value.
Further, described control unit is also used to the cycle-index n of the Positive work and antiport in outdoor fan
When reaching preset cycle-index threshold value, T is judged:
If T is less than or equal to the first temperature threshold T1, then issue instruction and timing module allowed to judge the time according to preset suppression frost
Timing is carried out, if the temperature T is consistently less than equal to the first temperature threshold T at the end of timing1, then issue instruction and stop suppression
Frost control, and execute the instruction of defrosting control；Otherwise it executes and presses down white control instruction；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and timing module allowed to judge the time according to preset suppression frost
Timing is carried out, if the temperature T is consistently greater than equal to second temperature threshold value T at the end of timing2, then issue instruction and stop suppression
Frost control, control outdoor fan restore to operate normally；Otherwise it executes and presses down white control instruction；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value.
Further, described control unit is also used to the cycle-index n of the Positive work and antiport in outdoor fan
When reaching preset cycle-index threshold value, T is judged:
If T is less than or equal to the first temperature threshold T1, then judge whether the revolving speed promotion number of outdoor fan reaches revolving speed and mention
Frequency threshold value is risen, the revolving speed that outdoor fan is controlled if not up to is promoted once, then executes the white control instruction of suppression；Otherwise it issues and refers to
It enables and stops suppression frost control, and execute the instruction of defrosting control；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and stop suppression frost control, control outdoor fan restores normal
Operation；
The memory module is also used to save second temperature threshold value T2, cycle-index threshold value and revolving speed promote frequency threshold value.
Further, the value range of the cycle-index threshold value is 1~10.
Further, the value of the preset Positive work time and the preset antiport time are 5~60
Between second.
Compared with the prior art, the invention has the following beneficial effects:
1, suppression frost control is realized by using the mode of outdoor fan reverse circulation operating, due to traditional unidirectional wind-force
Only the frostwork that short transverse increases is blown down or is blowed to far from tuyere position, so that frost layer successively thickens in one direction, and
Bidirectional circulating wind-force in this method can solve this problem, can effectively inhibit the attachment of frostwork, significantly delay frosting
Time, greatly reduce the frequency of defrosting, reduce causes time of fluctuations in indoor temperature, to improve user because shutting down defrosting
Comfort；
2, by setting two temperature thresholds come to whether press down frost or defrosting control, for different outdoor condensers
Coil temperature situation is accurately controlled, and the working efficiency of air-conditioning is further improved；
3, by further increase suppression frost judge the time go forward side by side line delay judgement, can be further improved air-conditioning to suppression frost with
Defrost the accuracy controlled；
4, the white effect of suppression is improved by improving rotation speed of fan step by step, reduces the number that air-conditioning enters defrosting control, thus
It is further reduced the time of fluctuations in indoor temperature, improves the comfort of user.
Detailed description of the invention
Fig. 1 is the schematic process flow diagram of embodiment of the method 1；
Fig. 2 is the schematic process flow diagram of embodiment of the method 2；
Fig. 3 is the schematic process flow diagram of embodiment of the method 3；
Fig. 4 is the schematic process flow diagram of embodiment of the method 4；
Fig. 5 is the structural schematic diagram of Installation practice.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness for realizing invention are easy to understand, below with reference to
It is specifically illustrating, the present invention is further explained.
Embodiment of the method 1:
As shown in Figure 1, a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting, includes the following steps:
S1: when air-conditioning is in heating mode, condenser coil temperature T outside real-time detection room；
S2: judge whether the temperature T of detection is less than or equal to the first temperature threshold T1, S3 is executed if to be, it is no
Then return to step S1；
S3: judge time progress timing according to preset suppression frost, if temperature T described in timing course is consistently less than equal to the
One temperature threshold T1, then air-conditioning enters suppression frost control after timing, executes step S4；Otherwise S1 is returned to step；
S4: suppression frost control: control outdoor fan carries out in turn according to preset Positive work time and antiport time
Positive work and antiport simultaneously recycle at least once.
The suppression frost judges that the time can choose 100~150 seconds, preferably 100 seconds.The first temperature threshold T1It can be with
0 DEG C~-5 DEG C, preferably -5 DEG C of selection.Outdoor fan carries out a Positive work and an antiport is referred to as one cycle,
If the Positive work of the outdoor fan and the cycle-index of antiport are then n >=1 n.
As a further optimization of the scheme , the preset Positive work time is t1, when the preset antiport
Between be t2；The t1And t2Can between 5~60 seconds value；Particularly, the t1And t2Can choose is 30 seconds.
The method of the present embodiment realizes suppression frost control by using the mode that outdoor fan reverse circulation operates, due to passing
The unidirectional wind-force of system only blows to more frostworks far from tuyere position, so that frost layer successively thickens in one direction, and this
Bidirectional circulating wind-force in method can solve this problem, can effectively inhibit the attachment of frostwork, significantly delay frosting
Time greatly reduces the frequency of defrosting, and reducing leads to the time of fluctuations in indoor temperature because shutting down defrosting, improves air-conditioning
Comfort.
Embodiment of the method 2:
As shown in Fig. 2, further including following steps on the basis of embodiment of the method 1:
S5: when the Positive work of outdoor fan and the cycle-index n of antiport reach preset cycle-index threshold value n1
When, T is judged: if T is less than or equal to the first temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, we
Method terminates；If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to
Second temperature threshold value T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates.
The first temperature threshold T1Less than second temperature threshold value T2.The T1It can be set to 0 DEG C~-5 DEG C, the T2It can
To be set as 0 DEG C~2 DEG C.The present embodiment is the prior art with defrosting control hereinafter, and details are not described herein.
The method of the present embodiment by setting two temperature thresholds come to whether press down frost or defrosting control, for difference
Outdoor condenser coil temperature situation accurately controlled, effectively increase the working efficiency of air-conditioning.
As a further optimization of the scheme , the value range of the cycle-index threshold value can be 1~10, preferably 5.
Embodiment of the method 3:
As shown in figure 3, further including following steps on the basis of embodiment of the method 1:
S5: when the Positive work of outdoor fan and the cycle-index n of antiport reach preset cycle-index threshold value n1
When, T is judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And
Less than second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then follow the steps S7；
S6: judge that the time carries out timing according to preset suppression frost, be equal to if the temperature T described in timing course is consistently less than
First temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, this method terminates；Otherwise S4 is returned to step；
S7: judge that the time carries out timing according to preset suppression frost, be equal to if the temperature T described in timing course is consistently greater than
Second temperature threshold value T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates；Otherwise it returns and holds
Row step S4.
The first temperature threshold T1Less than second temperature threshold value T2.The T1It can be set to 0 DEG C~-5 DEG C, the T2It can
To be set as 0 DEG C~2 DEG C.The cycle-index threshold value usually desirable 1~10, preferably 5.
The method of the present embodiment increased on the basis of embodiment of the method 2 suppression frost judge the time go forward side by side line delay judge,
Air-conditioning be can be further improved to the accuracy of suppression frost and defrosting control.
Embodiment of the method 4:
As shown in figure 4, further including following steps on the basis of embodiment of the method 1:
S5: when the Positive work of outdoor fan and the cycle-index n of antiport reach preset cycle-index threshold value n1
When, T is judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And
Less than second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then air-conditioning stops suppression frost control
System, outdoor fan restore to operate normally, and this method terminates；
S6: number is promoted to the revolving speed of outdoor fan and is judged: not up to turned if the revolving speed of outdoor fan promotes number
Speed promotes frequency threshold value, then the revolving speed of outdoor fan is promoted primary (be denoted as revolving speed at this time and promote number+1), return executes step
Rapid S4；Otherwise air-conditioning stops suppression frost control, controls into defrosting, this method terminates.
The first temperature threshold T1Less than second temperature threshold value T2.The T1It can be set to 0 DEG C~-5 DEG C, the T2It can
To be set as 0 DEG C~2 DEG C.It is natural number that the revolving speed, which promotes frequency threshold value, usually desirable 1~6, preferably 3.
Inhibit the effect of frostwork attachment due to promoting rotation speed of fan and can be promoted, the method for the present embodiment is less than for T etc.
In the first temperature threshold T1The case where, stop doing further effort before suppression frost control enters defrosting control in air-conditioning, by mentioning
T can be promoted to the degree without entering defrosting control from the point of view of high rotation speed of fan, if can if can be further reduced into removing
The time of frost control improves the comfort of user to be further reduced the time of fluctuations in indoor temperature.
As a further optimization of the scheme , speedup according to quantity can be used in the revolving speed of outdoor fan in suppression frost control described herein
Mode, if the amount that is promoted every time of the revolving speed of outdoor fan is N, then the revolving speed N promoted every time in the speedup according to quantity can be selected
Select one be not more than 50r/min value, specific speedup value can be some definite value can also as the case may be depending on.
Installation practice 1:
As shown in figure 5, a kind of air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting, including outdoor fan, further includes:
Control unit, the outdoor condenser coil temperature T for being detected according to temperature sensor judge whether it is less than
In the first temperature threshold T1Timing module is allowed to carry out timing if then issuing instruction, if until timing terminates the temperature T always
Less than or equal to the first temperature threshold T1The white control instruction of suppression is then executed, that is, controls the outdoor fan according to preset Positive work
Time and antiport time carry out Positive work and antiport in turn and recycle at least once；
Timing module judges that the time carries out timing according to preset suppression frost when for receiving instruction；
Temperature sensor is used for when air-conditioning is in heating mode, condenser coil temperature outside real-time detection room, and will be warm
Degree information is sent to control unit；
Memory module, for saving preset value, including the first temperature threshold T1, the Positive work time, the antiport time,
Suppression frost judges the time.
Described control unit is connect with timing module, temperature sensor and memory module respectively.Device in the present embodiment
The method as described in embodiment of the method 1 may be implemented.Described control unit can be using MCU or PLC etc..The suppression frost judgement
Time can choose 100~150 seconds, preferably 100 seconds.The first temperature threshold T1It can choose 0 DEG C~-5 DEG C, preferably
It is -5 DEG C.The Positive work time and antiport time can between 5~60 seconds value；Particularly, the Positive work
Time and antiport time may be selected to be 20 seconds.
Installation practice 2:
As shown in figure 5, on the basis of Installation practice 1, described control unit is also used to the forward direction fortune in outdoor fan
Turn and the cycle-index n of antiport reaches preset cycle-index threshold value n1When, T is judged: if T is less than or equal to first
Temperature threshold T1, then issue instruction and stop suppression frost control, and execute the instruction of defrosting control；If T is greater than the first temperature threshold T1And
Less than second temperature threshold value T2, then the white control instruction of suppression is executed；If T is more than or equal to second temperature threshold value T2, then issue instruction and stop
Suppression frost control, control outdoor fan restore to operate normally；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value n1。
Described control unit is connect with timing module, temperature sensor and memory module respectively.Device in the present embodiment
The method as described in embodiment of the method 2 may be implemented.The first temperature threshold T1Less than second temperature threshold value T2；The T1
It can be set to 0 DEG C~-5 DEG C, the T2It can be set to 0 DEG C~2 DEG C.The value range of the cycle-index threshold value can be 1~
10, preferably 5.
Installation practice 3:
As shown in figure 5, on the basis of Installation practice 1, described control unit is also used to the forward direction fortune in outdoor fan
Turn and the cycle-index n of antiport reaches preset cycle-index threshold value n1When, T is judged:
If T is less than or equal to the first temperature threshold T1, then issue instruction and timing module allowed to judge the time according to preset suppression frost
Timing is carried out, if the temperature T is consistently less than equal to the first temperature threshold T at the end of timing1, then issue instruction and stop suppression
Frost control, and execute the instruction of defrosting control；Otherwise it executes and presses down white control instruction；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and timing module allowed to judge the time according to preset suppression frost
Timing is carried out, if the temperature T is consistently greater than equal to second temperature threshold value T at the end of timing2, then issue instruction and stop suppression
Frost control, control outdoor fan restore to operate normally；Otherwise it executes and presses down white control instruction；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value n1。
Described control unit is connect with timing module, temperature sensor and memory module respectively.Device in the present embodiment
The method as described in embodiment of the method 3 may be implemented.The first temperature threshold T1Less than second temperature threshold value T2；The T1
It can be set to 0 DEG C~-5 DEG C, the T2It can be set to 0 DEG C~2 DEG C.The value range of the cycle-index threshold value can be 1~
10, preferably 5.
Installation practice 4:
As shown in figure 5, on the basis of Installation practice 1, described control unit is also used to the forward direction fortune in outdoor fan
Turn and the cycle-index n of antiport reaches preset cycle-index threshold value n1When, T is judged:
If T is less than or equal to the first temperature threshold T1, then judge whether the revolving speed promotion number of outdoor fan reaches revolving speed and mention
Frequency threshold value is risen, the revolving speed that outdoor fan is controlled if not up to is promoted once, then executes the white control instruction of suppression；Otherwise it issues and refers to
It enables and stops suppression frost control, and execute the instruction of defrosting control；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and stop suppression frost control, control outdoor fan restores normal
Operation；
The memory module is also used to save second temperature threshold value T2, cycle-index threshold value n1Number threshold is promoted with revolving speed
Value.
Described control unit is connect with timing module, temperature sensor and memory module respectively.Device in the present embodiment
The method as described in embodiment of the method 4 may be implemented.The first temperature threshold T1Less than second temperature threshold value T2；The T1
It can be set to 0 DEG C~-5 DEG C, the T2It can be set to 0 DEG C~2 DEG C.The value range of the cycle-index threshold value can be 1~
10, preferably 5.
The foregoing is merely the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment party
Formula, all technical solutions for belonging to the principle of the invention all belong to the scope of protection of the present invention.For those skilled in the art and
Speech, several improvement carried out without departing from the principles of the present invention, these improvement also should be regarded as protection model of the invention
It encloses.
Claims (10)
1. a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting, it is characterised in that include the following steps:
S1: when air-conditioning is in heating mode, condenser coil temperature T outside real-time detection room；
S2: judge whether the temperature T of detection is less than or equal to the first temperature threshold T1, S3 is executed if to be, is otherwise returned
Execute step S1；
S3: judge that the time carries out timing according to preset suppression frost, if temperature T described in timing course is consistently less than equal to the first temperature
Spend threshold value T1, then air-conditioning enters suppression frost control after timing, executes step S4；Otherwise S1 is returned to step；
S4: suppression frost control: control outdoor fan carries out forward direction according to preset Positive work time and antiport time in turn
Operating and antiport simultaneously recycle at least once.
2. a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 1, it is characterised in that including such as
Lower step:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value, to T
Judged: if T is less than or equal to the first temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, this method knot
Beam；If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then S4 is returned to step；If T is more than or equal to second
Temperature threshold T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates.
3. a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 1, it is characterised in that including such as
Lower step:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value, to T
Judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And less than
Two temperature threshold T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then follow the steps S7；
S6: judge that the time carries out timing according to preset suppression frost, if the temperature T described in timing course is consistently less than equal to first
Temperature threshold T1, then air-conditioning stops suppression frost control, controls into defrosting, this method terminates；Otherwise S4 is returned to step；
S7: judge that the time carries out timing according to preset suppression frost, if the temperature T described in timing course, which is consistently greater than, is equal to second
Temperature threshold T2, then air-conditioning stops suppression frost control, and outdoor fan restores to operate normally, and this method terminates；Otherwise it returns and executes step
Rapid S4.
4. a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 1, it is characterised in that including such as
Lower step:
S5: when the cycle-index n of the Positive work of outdoor fan and antiport reaches preset cycle-index threshold value, to T
Judged: if T is less than or equal to the first temperature threshold T1, then follow the steps S6；If T is greater than the first temperature threshold T1And less than
Two temperature threshold T2, then S4 is returned to step；If T is more than or equal to second temperature threshold value T2, then air-conditioning stops suppression frost control, room
Outer blower restores to operate normally, and this method terminates；
S6: judged: if the revolving speed of outdoor fan promotes number and is not up to revolving speed promotion frequency threshold value, by outdoor fan
Revolving speed is promoted once, returns to step S4；Otherwise air-conditioning stops suppression frost control, controls into defrosting, this method terminates.
5. a kind of air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting, including outdoor fan, it is characterised in that further include:
Control unit, the outdoor condenser coil temperature T for being detected according to temperature sensor judge whether it is less than or equal to
One temperature threshold T1Timing module is allowed to carry out timing if then issuing instruction, if being consistently less than until timing terminates the temperature T
Equal to the first temperature threshold T1The white control instruction of suppression is then executed, that is, controls the outdoor fan according to the preset Positive work time
It carries out Positive work and antiport in turn with the antiport time and recycles at least once；
Timing module judges that the time carries out timing according to preset suppression frost when for receiving instruction；
Temperature sensor is used for when air-conditioning is in heating mode, condenser coil temperature outside real-time detection room, and temperature is believed
Breath is sent to control unit；
Memory module, for saving preset value, including the first temperature threshold T1, the Positive work time, the antiport time, suppression frost
Judge the time.
6. a kind of air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 5, it is characterised in that:
Described control unit is also used to reach preset in the Positive work of outdoor fan and the cycle-index n of antiport and follow
When ring frequency threshold value, T is judged: if T is less than or equal to the first temperature threshold T1, then it issues instruction and stops suppression frost control, and
Execute the instruction of defrosting control；If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then execute suppression frost control and refer to
It enables；If T is more than or equal to second temperature threshold value T2, then issue instruction and stop suppression frost control, control outdoor fan restores to operate normally；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value.
7. a kind of air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 5, it is characterised in that:
Described control unit is also used to reach preset in the Positive work of outdoor fan and the cycle-index n of antiport and follow
When ring frequency threshold value, T is judged:
If T is less than or equal to the first temperature threshold T1, then issue instruction and timing module allowed to judge that the time is counted according to preset suppression frost
When, if the temperature T is consistently less than equal to the first temperature threshold T at the end of timing1, then issue instruction and stop suppression frost control
System, and execute the instruction of defrosting control；Otherwise it executes and presses down white control instruction；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and timing module allowed to judge that the time is counted according to preset suppression frost
When, if the temperature T is consistently greater than equal to second temperature threshold value T at the end of timing2, then issue instruction and stop suppression frost control
System, control outdoor fan restore to operate normally；Otherwise it executes and presses down white control instruction；
The memory module is also used to save second temperature threshold value T2With cycle-index threshold value.
8. a kind of air-conditioning for inhibiting condenser for outdoor unit of air conditioner frosting according to claim 5, it is characterised in that:
Described control unit is also used to reach preset in the Positive work of outdoor fan and the cycle-index n of antiport and follow
When ring frequency threshold value, T is judged:
If T is less than or equal to the first temperature threshold T1, then judge that the revolving speed of outdoor fan promotes whether number reaches revolving speed promotion number
Threshold value, the revolving speed that outdoor fan is controlled if not up to are promoted once, then execute the white control instruction of suppression；Otherwise instruction is issued to stop
Suppression frost control, and execute the instruction of defrosting control；
If T is greater than the first temperature threshold T1And it is less than second temperature threshold value T2, then the white control instruction of suppression is executed；
If T is more than or equal to second temperature threshold value T2, then issue instruction and stop suppression frost control, control outdoor fan restores to operate normally；
The memory module is also used to save second temperature threshold value T2, cycle-index threshold value and revolving speed promote frequency threshold value.
9. according to claim 2~4 it is described in any item it is a kind of inhibit condenser for outdoor unit of air conditioner frosting method or right want
Seek a kind of 6~8 described in any item air-conditionings for inhibiting condenser for outdoor unit of air conditioner frosting, it is characterised in that:
The value range of the cycle-index threshold value is 1~10.
10. a kind of method for inhibiting condenser for outdoor unit of air conditioner frosting according to any one of claims 1 to 4 or right are wanted
Seek a kind of 5~8 described in any item air-conditionings for inhibiting condenser for outdoor unit of air conditioner frosting, it is characterised in that:
The value of the preset Positive work time and the preset antiport time are between 5~60 seconds.
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| CN201810839143.XA CN109084444B (en) | 2018-07-26 | 2018-07-26 | Method for inhibiting frosting of condenser of air conditioner outdoor unit and air conditioner |
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| CN114963412A (en) * | 2022-05-19 | 2022-08-30 | 青岛海信日立空调系统有限公司 | Air conditioner and snow accumulation preventing air conditioning system |
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Application publication date: 20181225 Assignee: QINGDAO SANYUAN TE ELECTRONIC TECHNOLOGY CO.,LTD. Assignor: Sichuan Changhong Air Conditioning Co.,Ltd. Contract record no.: X2023980039249 Denomination of invention: A Method for Suppressing Frosting on the Condenser of Outdoor Air Conditioning Units and Air Conditioning Granted publication date: 20210716 License type: Common License Record date: 20230810 Application publication date: 20181225 Assignee: CHANGHONG MEILING Co.,Ltd. Assignor: Sichuan Changhong Air Conditioning Co.,Ltd. Contract record no.: X2023510000010 Denomination of invention: A Method for Suppressing Frosting on the Condenser of Outdoor Air Conditioning Units and Air Conditioning Granted publication date: 20210716 License type: Common License Record date: 20230809 |