CN105402855B - The control method and air conditioner of air conditioner - Google Patents
The control method and air conditioner of air conditioner Download PDFInfo
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- CN105402855B CN105402855B CN201510919485.9A CN201510919485A CN105402855B CN 105402855 B CN105402855 B CN 105402855B CN 201510919485 A CN201510919485 A CN 201510919485A CN 105402855 B CN105402855 B CN 105402855B
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- air conditioner
- temperature
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Classifications
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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
-
- 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
- F24F11/62—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
Abstract
The invention discloses a kind of control method of air conditioner and air conditioner, wherein, this method includes：The heating of air conditioner reaches the first preset time, records outdoor heat exchanger temperature T3tr, and outdoor fan goes to the first operational mode, records outdoor heat exchanger minimum temperature T3trmin in the second preset time；The operation of first operational mode reaches the 3rd preset time, and temperature T3tz, the T3trmin T3tz for recording outdoor heat exchanger are less than T3h, and T3tr T3tz are not more than T3z, go to the second operational mode；The operation of second operational mode reaches the 4th preset time, and record temperature T3tz ', T3trmin T3tz ' is less than T3h, and T3tr T3tz ' are more than T3z, when T3tz ' is not less than T3tzs, the first operational mode are gone to, into circulation.The method of the embodiment of the present invention can effectively facilitate the discharge of condensed water, improve the frosting situation of outdoor unit.
Description
Technical field
The present invention relates to airconditioning control field, and in particular to the control method and air conditioner of a kind of air conditioner.
Background technology
Air conditioner, such as heat pump type air conditioner, heat is obtained with cools outdoor gas, simultaneously meeting from outdoor air during heating
Condensed water is formed on outdoor heat exchanger, if the discharge of outdoor condensed water has some setbacks, water bridge can be formed between outdoor heat exchanger fin, is led
Air quantity is caused to reduce.And in outdoor temperature step-down, evaporating pressure and temperature can all reduce, so as to easily cause outdoor unit frosting,
Reduce heating capacity.And in order to ensure heating capacity, defrost action can be designed, as shown in figure 1, being heat pump type air conditioner in correlation technique
The air-blower control process of device, but the control process can cause fluctuations in indoor temperature larger, and also frequently defrost can reduce user
Heating experience effect.
In addition, in correlation technique, from the aspect of water wetted material, fin shape and spacing of fin, to a certain extent
The frosting velocity for having delayed heat pump to heat, but material cost is too high.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
First purpose is to propose a kind of control method of air conditioner, outdoor unit when this method can delay the heat pump type air conditioner to heat
Frosting velocity, and energy consumption is small.
Second object of the present invention is to propose a kind of air conditioner.
To achieve the above object, the embodiment of first aspect present invention proposes a kind of control method of air conditioner, wherein,
The air conditioner includes indoor set and outdoor unit, and the outdoor unit includes outdoor fan and outdoor heat exchanger, and methods described includes
Following steps：A. when air conditioner goes to heating mode, judge the air conditioner the heating time whether reach first it is default when
Between；B. if it is, recording the temperature T3tr of the outdoor heat exchanger, and the outdoor fan is switched to the first operational mode,
And after the second preset time is postponed, record the minimum temperature of the outdoor heat exchanger in second preset time
T3trmin；C. when the time that the outdoor fan is run with present mode of operation reaching three preset times, the room is recorded
The temperature T3tz of external heat exchanger, if the difference between the T3trmin and the T3tz is less than the first fiducial temperature, and it is described
Difference between T3tr and the T3tz is not more than the second fiducial temperature, then switches the outdoor fan to the second operational mode；
D. when the time that the outdoor fan is run with present mode of operation reaching four preset times, the outdoor heat exchanger is recorded
Temperature T3tz ', if the difference between the T3trmin and the T3tz ' is less than the first fiducial temperature, and the T3tr with
Difference between the T3tz ' is more than second fiducial temperature, judges whether the T3tz ' is not less than the first preset temperature,
If it is switch the outdoor fan to first operational mode, and return to the step c.
The control method of the air conditioner of the embodiment of the present invention, for air conditioner heat-production operation can form condensed water, by
Reasonable time, Rule of judgment is set according to temperature, controls direction of rotation, fan operation rotating speed of blower fan etc., it is negative so as to be formed
Pressure air draught replaces with forced draft, reaches and accelerates condensed water discharge, delays the effect of outer machine frosting, improves the heating effect of user
Fruit is experienced.
In addition, the control method of air conditioner according to the above embodiment of the present invention, can also have technology additional as follows
Feature：
In some instances, it is described when air conditioner goes to heating mode, in addition to：Detect outdoor temperature；According to described
Outdoor temperature obtains the initial launch pattern of the outdoor fan.
In some instances, when the time that the outdoor fan is run with present mode of operation, which reaches the described 3rd, presets
Between and/or the 4th preset time, and the difference between the T3trmin and the T3tz and/or the T3tz ' is not less than
First fiducial temperature, then the air conditioner go to defrost pattern；And run when the outdoor fan with present mode of operation
When time is not up to the 3rd preset time and/or four preset time, judge that the T3trmin changes with the outdoor
Whether the difference between the Current Temperatures of hot device is not less than the first fiducial temperature, and if it is the air conditioner goes to defrost mould
Formula.
In some instances, the time run when the outdoor fan with present mode of operation is not up to the described 3rd
When preset time and/or four preset time, and between the Current Temperatures of the T3trmin and the outdoor heat exchanger
Difference is less than the first fiducial temperature, then the outdoor fan keeps present mode of operation.
In some instances, if difference between the T3trmin and the T3tz and/or the T3tz ' is less than the
One fiducial temperature, and the difference between the T3tr and the T3tz and/or the T3tz ' is more than the second fiducial temperature, then sentences
Whether the T3tz and/or T3tz ' that breaks is less than the first preset temperature, if it is controls the outdoor fan to be transported with rotating speed of target
OK；Judge the Current Temperatures of the outdoor heat exchanger when T3trmin is run with the outdoor fan with the rotating speed of target
Between difference whether be not less than first fiducial temperature, if it is the air conditioner goes to defrost pattern.
In some instances, preset if the difference between the T3trmin and the T3tz is less than described first
The temperature difference, and the difference between the T3tr and the T3tz is more than the second fiducial temperature, then judge whether the T3tz is less than the
One preset temperature, if otherwise switching the outdoor fan to the second operational mode.
In some instances, after the air conditioner goes to defrost pattern operation, including：When detecting the outdoor heat exchanger
Current Temperatures when being not less than the second preset temperature, the air conditioner goes to heating mode operation；And when defrost pattern is run
When time reaches five preset times, the air conditioner goes to heating mode operation.
In some instances, first preset time is 10 minutes, and second preset time is 2 minutes, described the
Three preset times are 5 minutes, and the 4th preset time is 10 minutes, and the 5th preset time is 8 minutes, and described first is pre-
If the temperature difference is 3 DEG C, second fiducial temperature is 0 DEG C, and first preset temperature is -1 DEG C, and second preset temperature is 14
DEG C, the rotating speed of the initial launch pattern is 850 revs/min, is turned to rotate forward, and the rotating speed of first operational mode is 950
Rev/min, turn to invert, the rotating speed of second operational mode is 850 revs/min, is turned to rotate forward.
To achieve the above object, the embodiment of second aspect of the present invention proposes a kind of air conditioner, and the air conditioner includes
Indoor set, outdoor unit and controller, wherein, the outdoor unit includes outdoor fan and outdoor heat exchanger, and the controller is used for：
A. when air conditioner goes to heating mode, judge whether the heating time of the air conditioner reaches the first preset time；B. if
It is the temperature T3tr for then recording the outdoor heat exchanger, and switches the outdoor fan to the first operational mode, and is postponing
After second preset time, the minimum temperature T3trmin of the outdoor heat exchanger in second preset time is recorded；C. when described
When the time that outdoor fan is run with present mode of operation reaches three preset times, the temperature of the outdoor heat exchanger is recorded
T3tz, if the difference between the T3trmin and the T3tz is less than the first fiducial temperature, and the T3tr and T3tz
Between difference be not more than the second fiducial temperature, then switch the outdoor fan to the second operational mode；D. when the outdoor wind
When the time that machine is run with present mode of operation reaches four preset times, the temperature T3tz ' of the outdoor heat exchanger is recorded, such as
Difference between T3trmin described in fruit and the T3tz ' is less than the first fiducial temperature, and between the T3tr and the T3tz '
Difference be more than second fiducial temperature, judge whether the T3tz ' is not less than the first preset temperature, if it is switch institute
Outdoor fan is stated to first operational mode, and circulates and performs c-d.
Air conditioner according to embodiments of the present invention, condensed water can be formed for air conditioner heat-production operation, by appropriate
Time, Rule of judgment is set according to temperature, direction of rotation, fan operation rotating speed of blower fan etc. are controlled, so as to form negative-pressure air-suction
Replace with forced draft, reach and accelerate condensed water discharge, delay the effect of outer machine frosting, improve the heating effect body of user
Test.
In addition, air conditioner according to the above embodiment of the present invention, can also have technical characteristic additional as follows：
In some instances, described when air conditioner goes to heating mode, the controller is additionally operable to：Detect outdoor temp
Degree；The initial launch pattern of the outdoor fan is obtained according to the outdoor temperature
In some instances, the controller is additionally operable to：When the time that the outdoor fan is run with present mode of operation
Reach the 3rd preset time and/or the 4th preset time, and the T3trmin and T3tz and/or described
Difference between T3tz ' is not less than the first fiducial temperature, then the air conditioner goes to defrost pattern；And when the outdoor fan
When the time run with present mode of operation is not up to the 3rd preset time and/or four preset time, institute is judged
State whether the difference between the Current Temperatures of T3trmin and the outdoor heat exchanger is not less than the first fiducial temperature, if it is
The air conditioner goes to defrost pattern.
In some instances, the air conditioner is additionally operable to：When the time that the outdoor fan is run with present mode of operation
When not up to described 3rd preset time and/or four preset time, and the T3trmin and the outdoor heat exchanger
Difference between Current Temperatures is less than the first fiducial temperature, then the outdoor fan keeps present mode of operation.
In some instances, if difference between the T3trmin and the T3tz and/or the T3tz ' is less than the
One fiducial temperature, and the difference between the T3tr and the T3tz and/or the T3tz ' is more than the second fiducial temperature, then sentences
Whether the T3tz and/or T3tz ' that breaks is less than the first preset temperature, if it is controls the outdoor fan to be transported with rotating speed of target
OK；Judge the Current Temperatures of the outdoor heat exchanger when T3trmin is run with the outdoor fan with the rotating speed of target
Between difference whether be not less than first fiducial temperature, if it is control the air conditioner to go to defrost pattern.
In some instances, the air conditioner is additionally operable to：If the difference between the T3trmin and the T3tz is less than
First fiducial temperature, and the difference between the T3tr and the T3tz is more than second fiducial temperature, then judges institute
State whether T3tz is less than first preset temperature, if otherwise switching the outdoor fan to the second operational mode.
In some instances, after the air conditioner goes to defrost pattern operation, the air conditioner is additionally operable to：When detecting
When stating the Current Temperatures of outdoor heat exchanger and being not less than the second preset temperature, the air conditioner goes to heating mode operation；And work as
When defrost pattern run time reaches five preset times, the air conditioner goes to heating mode operation.
In some instances, first preset time is 10 minutes, and second preset time is 2 minutes, described the
Three preset times are 5 minutes, and the 4th preset time is 10 minutes, and the 5th preset time is 8 minutes, and described first is pre-
If the temperature difference is 3 DEG C, second fiducial temperature is 0 DEG C, and first preset temperature is -1 DEG C, and second preset temperature is 14
DEG C, the rotating speed of the initial launch pattern is 850 revs/min, is turned to rotate forward, and the rotating speed of first operational mode is 950
Rev/min, turn to invert, the rotating speed of second operational mode is 850 revs/min, is turned to rotate forward.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the control method of common air-conditioning device；
The flow chart of the control method of air conditioner according to embodiments of the present invention Fig. 2；
Fig. 3 is the flow chart according to the control method of the air conditioner of a specific embodiment of the invention；
Fig. 4 is the structural representation of air conditioner according to an embodiment of the invention.
Reference：Air conditioner 100, indoor set 10, outdoor unit 20, outdoor fan 21, outdoor heat exchanger 22 and controller
30。
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The control method and air conditioner of air conditioner according to embodiments of the present invention are described below in conjunction with accompanying drawing.
Fig. 2 is the flow chart of the control method of air conditioner according to embodiments of the present invention.
Firstly the need of explanation, air conditioner includes indoor set and outdoor unit, and outdoor unit includes outdoor fan and outdoor is changed
Hot device.
As shown in Fig. 2 the control method of the air conditioner comprises the following steps：
S101, when air conditioner goes to heating mode, judge whether the heating time of the air conditioner reaches first and preset
Time.
Wherein, the first preset time can be 10 minutes.
In one embodiment of the invention, when air conditioner goes to heating mode, also need to detect outdoor temperature, according to outdoor
Temperature obtains the initial launch pattern of outdoor fan.Specifically, can set when outdoor temperature is 3 DEG C, corresponding air conditioner
The initial launch pattern of outdoor fan is that initial steer is rotating forward, and initial speed is 850 revs/min.
S102, if the heating time of air conditioner reaches the first preset time, the temperature T3tr of outdoor heat exchanger is recorded,
And switch outdoor fan to the first operational mode, and after the second preset time is postponed, record outdoor in the second preset time
The minimum temperature T3trmin of heat exchanger.
Wherein, the rotating speed of the first operational mode can be 950 revs/min, reverse during steering；Second preset time can be
2 minutes.In one embodiment of the invention, if the minimum temperature T3trmin of outdoor heat exchanger is -1 DEG C, in 10-12
The minimum temperature of detection outdoor heat exchanger is -1 DEG C in minute.
In one embodiment of the invention, if the heating time of air conditioner reaches 10 minutes, outdoor fan is switched
Steering for reversion, rotating speed be 950 revs/min, now the temperature T3tr of outdoor heat exchanger can be 0.5 DEG C.
In another embodiment of the present invention, if the heating time of air conditioner is not up to 10 minutes, outdoor fan
With 850 revs/min of operations of initial positive steering and initial speed.
S103, when the time that outdoor fan is run with the first operation mode reaching three preset times, changed outside recording room
The temperature T3tz of hot device, if the difference between T3trmin and T3tz is less than the first fiducial temperature, and between T3tr and T3tz
Difference is not more than the second fiducial temperature, then switches outdoor fan to the second operational mode.
Wherein, the 3rd preset time can be 5 minutes, and the first fiducial temperature can be 3 DEG C, and the second fiducial temperature can be
0 DEG C, the second operational mode can be that the steering of outdoor fan is forward direction, and rotating speed can be 850 revs/min.
In an embodiment of the present invention, when the time that outdoor fan is run with present mode of operation, which is not up to the 3rd, presets
Between when, it is necessary to judge whether air conditioner meets defrost condition, that is, judge between T3trmin and the Current Temperatures of outdoor heat exchanger
Whether difference is not less than the first fiducial temperature, and if it is air conditioner goes to defrost pattern；And when outdoor fan currently to transport
The time of row mode operation reaches the 3rd preset time, it is also desirable to first judges whether air conditioner meets defrost condition, that is, judges
Whether the difference between T3trmin and T3tz is not less than the first fiducial temperature, and if it is air conditioner goes to defrost pattern.
In an embodiment of the present invention, when the time that outdoor fan is run with present mode of operation, which is not up to the 3rd, presets
Between, and the difference between T3trmin and the Current Temperatures of outdoor heat exchanger is less than the first fiducial temperature, then outdoor fan is kept
Present mode of operation.
In one particular embodiment of the present invention, if T3trmin be -1 DEG C, T3tr be 0.5 DEG C, when outdoor fan with
950 revs/min, and when the time of inverted running is not up to 5 minutes, the Current Temperatures for being consecutively detected outdoor heat exchanger are less than -4
DEG C, then air conditioner is unsatisfactory for defrost condition, i.e. air conditioner is still run with heating mode.When outdoor fan is with 950 revs/min, and
When the time of inverted running reaches 5 minutes, the temperature T3tz for recording outdoor heat exchanger can be 0.5 DEG C, then T3trmin and T3tz
Between difference be -1.5 DEG C, less than 3 DEG C of the first fiducial temperature, be unsatisfactory for defrost condition, and the difference between T3tr and T3tz
For 0 DEG C, equal to 0 DEG C of the second fiducial temperature, then the steering for switching outdoor fan is forward direction, and rotating speed is 850 revs/min.
S104, when the time that outdoor fan is run with present mode of operation reaching four preset times, changed outside recording room
The temperature T3tz ' of hot device, if the difference between T3trmin and T3tz ' is less than the first fiducial temperature, and T3tr and T3tz ' it
Between difference be more than the second fiducial temperature, judge whether T3tz ' is not less than the first preset temperature, if it is switch outdoor fan
To the first operational mode, and return to step S103.
Wherein, the 4th preset time can be 10 minutes, and the first preset temperature can be -1 DEG C.
In an embodiment of the present invention, when the time that outdoor fan is run with present mode of operation, which is not up to the 4th, presets
Between when, it is necessary to judge whether air conditioner meets defrost condition, that is, judge between T3trmin and the Current Temperatures of outdoor heat exchanger
Whether difference is not less than the first fiducial temperature, and if it is air conditioner goes to defrost pattern；And when outdoor fan currently to transport
The time of row mode operation reaches the 3rd preset time, it is also desirable to first judges whether air conditioner meets defrost condition, that is, judges
Whether the difference between T3trmin and T3tz ' is not less than the first fiducial temperature, and if it is air conditioner goes to defrost pattern.
In an embodiment of the present invention, when the time that outdoor fan is run with present mode of operation, which is not up to the 4th, presets
Between, and the difference between T3trmin and the Current Temperatures of outdoor heat exchanger is less than the first fiducial temperature, then outdoor fan is kept
Present mode of operation.
In one particular embodiment of the present invention, T3tr is 0.5 DEG C, and T3trmin is -1 DEG C, when outdoor fan is with 850
Rev/min, and when the time of positive operation is not up to 10 minutes, the Current Temperatures for being consecutively detected outdoor heat exchanger are less than -4
DEG C, then air conditioner is unsatisfactory for defrost condition, i.e. air conditioner is still run with heating mode.When outdoor fan is with 850 revs/min, and
The time of forward direction operation, the temperature T3tz ' for recording outdoor heat exchanger can be -1 DEG C when reaching 10 minutes, then T3trmin with
Difference between T3tz ' is 0 DEG C, and less than 3 DEG C of the first fiducial temperature, air conditioner is unsatisfactory for defrost condition, and T3tr and T3tz ' it
Between difference be 1.5 DEG C, more than 0 DEG C of the second fiducial temperature, and T3tz ' is equal to -1 DEG C of the first preset temperature, then switching chamber exogenous wind
The steering of machine is reverse, and rotating speed is 950 revs/min, and goes to step S103, and circulation performs step S103-S104.
In an embodiment of the present invention, preset if the difference between T3trmin and T3tz and/or T3tz ' is less than first
The temperature difference, and the difference between T3tr and T3tz and/or T3tz ' is more than the second fiducial temperature, then judges that T3tz and/or T3tz ' is
It is no to be less than the first preset temperature, if it is control outdoor fan to be run with rotating speed of target.
Further, judge outdoor heat exchanger when T3trmin and outdoor fan are run with rotating speed of target Current Temperatures it
Between difference whether be more than the first fiducial temperature, if it is air conditioner goes to defrost pattern.
Wherein, rotating speed of target can be 1000 revs/min.Allow most it is understood that rotating speed of target is no more than noise
The maximum that big value and motor speed allow.
Further, after air conditioner goes to defrost pattern operation, including：When the Current Temperatures for detecting outdoor heat exchanger
During more than the second preset temperature, air conditioner goes to heating mode operation；And preset when defrost pattern run time reaches the 5th
During the time, air conditioner goes to heating mode operation.
Wherein, the second preset temperature can be 14 DEG C, and the 5th preset time can be 8 minutes.
In one particular embodiment of the present invention, T3trmin is -1 DEG C, and T3tr is -0.5 DEG C, if outdoor fan is transported
When after row mode switching and running the 3rd preset time and/or four preset times, the temperature for detecting outdoor heat exchanger is -2
DEG C, the temperature and T3trmin difference are 1 DEG C, less than 3 DEG C of the first fiducial temperature, are unsatisfactory for defrost condition, continue heating fortune
OK.Difference of -2 DEG C of the temperature of outdoor heat exchanger between T3tr is 1.5 DEG C, more than 0 DEG C of the second fiducial temperature.Continue to judge
- 2 DEG C of the temperature to outdoor heat exchanger is less than -1 DEG C of the first preset temperature, then the direct speed-changing of outdoor fan is 1000 revs/min
Clock is run, and is turned to constant.Outdoor fan is with 1000 revs/min of runnings, the continuous Current Temperatures for detecting outdoor heat exchanger,
When the Current Temperatures for detecting outdoor heat exchanger are -4 DEG C, itself and the T3trmin temperature difference are equal to the first fiducial temperature for 3 DEG C,
Meet defrost condition.
Further, after air conditioner enters defrost pattern operation, outdoor fan rotating speed switches to 0 rev/min, or outdoor wind
Machine is shut down.Outdoor fan state is kept constant during defrost, when the temperature for detecting outdoor heat exchanger is more than the second default temperature
14 DEG C of degree, or defrost time reach 8 minutes, then air conditioner exits defrost pattern, goes to heating mode.
The control method of the air conditioner of the embodiment of the present invention, for air conditioner heat-production operation can form condensed water, by
Reasonable time, Rule of judgment is set according to temperature, controls direction of rotation, fan operation rotating speed of blower fan etc., it is negative so as to be formed
Pressure air draught replaces with forced draft, reaches and accelerates condensed water discharge, delays the effect of outer machine frosting, improves the heating effect of user
Fruit is experienced.
For convenience of the detailed process of the control method for the air conditioner for understanding the embodiment of the present invention, can be illustrated by Fig. 3.
As shown in figure 3, the control method of the air conditioner of the embodiment of the present invention includes：
Air conditioner enters heating mode (S201), detection outdoor temperature (S202), judges that blower fan is initial according to outdoor temperature
Operational mode (S203).Judge whether the heating time of air conditioner reaches the first preset time (S204), if then recording now
The temperature T3tr of outdoor heat exchanger, and continue to detect the temperature 2 minutes of outdoor heat exchanger, i.e. the second preset time, outside recording room
The minimum temperature T3trmin (S205) of heat exchanger, switching outdoor fan to the first operational mode (S206).Judge switching chamber exogenous wind
Whether the time that machine is run with the first operation mode reaches the 3rd preset time t z1 (S207).Changed if so, then recording now outdoor
The temperature T3tz (S208) of hot device；If it is not, then judge the minimum temperature T3trmin of outdoor heat exchanger and working as outdoor heat exchanger
Whether the difference between preceding temperature T3 is less than the first fiducial temperature T3h (S209), if then outdoor fan continues currently to run
Mode operation；If not then air conditioner enters defrost pattern (S210).Judge whether T3trmin-T3tz is less than T3h (S211),
If so, then judge whether T3tr-T3tz is not more than the second fiducial temperature T3z (S212), if so, then switching outdoor fan to second
Operational mode (S213)；If T3tr-T3tz is greater than the second fiducial temperature T3z, it is default to judge whether T3tz is less than first
Temperature T3tzs (S214).If so, then outdoor fan is run with rotating speed of target, turn to constant (S215)；If it is not, then switching chamber
Outer blower fan is to the second operational mode (S213).Judge to switch whether time for running in the second operating mode of outdoor fan reaches the
Four preset time t z2 (S216).If so, then record the temperature T3tz ' (S217) of now outdoor heat exchanger；If it is not, then judge
It is default whether the difference between the minimum temperature T3trmin of outdoor heat exchanger and the Current Temperatures T3 of outdoor heat exchanger is less than first
Temperature difference T3h (S218), if then outdoor fan continues to run with present mode of operation；If not then air conditioner enters defrost pattern
(S210).Judge whether T3trmin-T3tz is less than T3h (S219), if so, then judging whether T3tr-T3tz ' is not more than second
Fiducial temperature T3z (S220), if so, then switching outdoor fan to the first operational mode (S206)；If T3tr-T3tz ' is big
In the second fiducial temperature T3z, then judge whether T3tz ' is less than the first preset temperature T3tzs (S221).If so, then outdoor fan
Run, turned to constant (S215) with rotating speed of target；If it is not, then switch outdoor fan to the first operational mode (S206).And
When outdoor fan is run with rotating speed of target, judge whether the difference between T3trmin and the Current Temperatures of outdoor heat exchanger is not small
In T3h (S222), if so, then air conditioner enters defrost pattern (S210).After air conditioner enters defrost pattern, outdoor heat exchange is judged
Whether the Current Temperatures T3 of device is not less than the second preset temperature T3cu, or the time that air conditioner is run with defrost pattern reaches the 5th
Preset time t h (S223), if so, then air conditioner goes to heating mode.
Fig. 4 is the structural representation of air conditioner according to embodiments of the present invention.As shown in figure 4, air conditioner 100 includes：It is indoor
Machine 10, outdoor unit 20 and controller 30, wherein, outdoor unit 20 includes outdoor fan 21 and outdoor heat exchanger 22.
Specifically, controller 30 is used for when air conditioner 100 goes to heating mode, judges the heating time of air conditioner 100
Whether first preset time is reached；If it is, the temperature T3tr of record outdoor heat exchanger, and switch outdoor fan to the first fortune
Row mode, and after the second preset time is postponed, record the minimum temperature of outdoor heat exchanger in the second preset time
T3trmin；When the time that outdoor fan is run with present mode of operation reaching three preset times, outdoor heat exchanger is recorded
Temperature T3tz, if the difference between T3trmin and T3tz is less than the first fiducial temperature, and the difference between T3tr and T3tz is small
In the second fiducial temperature, then switch outdoor fan to the second operational mode；When outdoor fan is run with present mode of operation
Between when reaching four preset times, the temperature T3tz ' of outdoor heat exchanger is recorded, if the difference between T3trmin and T3tz ' is small
Whether in the first fiducial temperature, and the difference between T3tr and T3tz ' is more than the second fiducial temperature, judge T3tz ' not less than the
One preset temperature, if it is switch outdoor fan to the first operational mode, and circulate and perform the switching of outdoor fan operational mode.
Wherein, the first preset time can be 10 minutes, and the rotating speed of the first operational mode can be 950 revs/min, turn to
Shi Fanxiang, the second preset time can be 2 minutes, and the 3rd preset time can be 5 minutes, and the first fiducial temperature can be 3 DEG C,
Second fiducial temperature can be 0 DEG C, and the second operational mode can be that the steering of outdoor fan 21 is forward direction, and rotating speed can be 850
Rev/min, the 4th preset time can be 10 minutes, and the first preset temperature can be -1 DEG C.
In one embodiment of the invention, if the minimum temperature T3trmin of outdoor heat exchanger 22 is -1 DEG C,
The minimum temperature of detection outdoor heat exchanger 22 is -1 DEG C in 10-12 minutes.
In one embodiment of the invention, when air conditioner 100 goes to heating mode, also need to detect outdoor temperature, according to
Outdoor temperature obtains the initial launch pattern of outdoor fan 21.Specifically, can set when outdoor temperature is 3 DEG C, it is corresponding empty
The initial launch pattern for adjusting the outdoor fan 21 of device 100 is that initial steer is rotating forward, and initial speed is 850 revs/min.
In one embodiment of the invention, if the heating time of air conditioner 100 reaches 10 minutes, switching chamber exogenous wind
The steering of machine 21 is reversion, and rotating speed is 950 revs/min, and now the temperature T3tr of outdoor heat exchanger 22 can be 0.5 DEG C.
In another embodiment of the present invention, if the heating time of air conditioner 100 is not up to 10 minutes, outdoor wind
Machine 21 is with 850 revs/min of operations of initial positive steering and initial speed.
In an embodiment of the present invention, preset when the time that outdoor fan 21 is run with present mode of operation is not up to the 3rd
, it is necessary to judge whether air conditioner 100 meets defrost condition during the time, that is, judge T3trmin and outdoor heat exchanger 22 current temperature
Whether the difference between degree is not less than the first fiducial temperature, and if it is air conditioner 100 goes to defrost pattern；And when outdoor wind
The time that machine 21 is run with present mode of operation reaches the 3rd preset time, it is also desirable to first judge air conditioner 100 whether satisfaction
Ice-lolly part, that is, judge whether the difference between T3trmin and T3tz is not less than the first fiducial temperature, if it is air conditioner 100
Go to defrost pattern.
In an embodiment of the present invention, preset when the time that outdoor fan 21 is run with present mode of operation is not up to the 3rd
Time, and the difference between the Current Temperatures of T3trmin and outdoor heat exchanger 22 is less than the first fiducial temperature, then outdoor fan
21 keep present mode of operation.
In one particular embodiment of the present invention, if T3trmin is -1 DEG C, T3tr is 0.5 DEG C, when outdoor fan 21
With 950 revs/min, and when the time of inverted running is not up to 5 minutes, the Current Temperatures for being consecutively detected outdoor heat exchanger 22 are small
In -4 DEG C, then air conditioner 100 is unsatisfactory for defrost condition, i.e. air conditioner 100 is still run with heating mode.When outdoor fan 21 with
950 revs/min, and when the time of inverted running reaches 5 minutes, the temperature T3tz of record outdoor heat exchanger 22 can be 0.5 DEG C,
Then the difference between T3trmin and T3tz is -1.5 DEG C, less than 3 DEG C of the first fiducial temperature, is unsatisfactory for defrost condition, and T3tr with
Difference between T3tz is 0 DEG C, and equal to 0 DEG C of the second fiducial temperature, then the steering for switching outdoor fan 21 is for forward direction, rotating speed
850 revs/min.
In an embodiment of the present invention, preset when the time that outdoor fan 21 is run with present mode of operation is not up to the 4th
, it is necessary to judge whether air conditioner 100 meets defrost condition during the time, that is, judge T3trmin and outdoor heat exchanger 22 current temperature
Whether the difference between degree is not less than the first fiducial temperature, and if it is air conditioner 100 goes to defrost pattern；And when outdoor wind
The time that machine 21 is run with present mode of operation reaches the 3rd preset time, it is also desirable to first judge air conditioner 100 whether satisfaction
Ice-lolly part, that is, judge whether the difference between T3trmin and T3tz ' is not less than the first fiducial temperature, if it is air conditioner 100
Go to defrost pattern.
In an embodiment of the present invention, preset when the time that outdoor fan 21 is run with present mode of operation is not up to the 4th
Time, and the difference between the Current Temperatures of T3trmin and outdoor heat exchanger 22 is less than the first fiducial temperature, then outdoor fan
21 keep present mode of operation.
In one particular embodiment of the present invention, T3tr be 0.5 DEG C, T3trmin be -1 DEG C, when outdoor fan 21 with
850 revs/min, and when the time of positive operation is not up to 10 minutes, the Current Temperatures for being consecutively detected outdoor heat exchanger 22 are small
In -4 DEG C, then air conditioner 100 is unsatisfactory for defrost condition, i.e. air conditioner 100 is still run with heating mode.When outdoor fan 21 with
850 revs/min, and when the time of positive operation reaches 10 minutes, the temperature T3tz ' of record outdoor heat exchanger 22 can be -1
DEG C, then the difference between T3trmin and T3tz ' is 0 DEG C, and less than 3 DEG C of the first fiducial temperature, air conditioner 100 is unsatisfactory for defrost bar
Part, and the difference between T3tr and T3tz ' is 1.5 DEG C, more than 0 DEG C of the second fiducial temperature, and T3tz ' is equal to the first default temperature
- 1 DEG C of degree, the then steering for switching outdoor fan 21 are reverse, and rotating speed is 950 revs/min, and goes to step S103, cyclic switching
The operational mode of outdoor fan 21.
In an embodiment of the present invention, preset if the difference between T3trmin and T3tz and/or T3tz ' is less than first
The temperature difference, and the difference between T3tr and T3tz and/or T3tz ' is more than the second fiducial temperature, then judges that T3tz and/or T3tz ' is
It is no to be less than the first preset temperature, if it is control outdoor fan 21 to be run with rotating speed of target.
Further, the current temperature of outdoor heat exchanger 22 when T3trmin is run with outdoor fan 21 with rotating speed of target is judged
Whether the difference between degree is more than the first fiducial temperature, and if it is air conditioner 100 goes to defrost pattern.
Wherein, rotating speed of target can be 1000 revs/min.Allow most it is understood that rotating speed of target is no more than noise
The maximum that big value and motor speed allow.
Further, after air conditioner 100 goes to defrost pattern operation, including：When detect outdoor heat exchanger 22 work as
When preceding temperature is more than the second preset temperature, air conditioner 100 goes to heating mode operation；And when defrost pattern run time reaches
During five preset times, air conditioner 100 goes to heating mode operation.
Wherein, the second preset temperature can be 14 DEG C, and the 5th preset time can be 8 minutes.
In one particular embodiment of the present invention, T3trmin is -1 DEG C, and T3tr is -0.5 DEG C, if outdoor fan 21
When after operational mode switching and running the 3rd preset time and/or four preset times, the temperature of outdoor heat exchanger 22 is detected
For -2 DEG C, the temperature and T3trmin difference are 1 DEG C, less than 3 DEG C of the first fiducial temperature, are unsatisfactory for defrost condition, continue to heat
Operation.Difference of -2 DEG C of the temperature of outdoor heat exchanger 22 between T3tr is 1.5 DEG C, more than 0 DEG C of the second fiducial temperature.Continue to sentence
Disconnected -2 DEG C of temperature for obtaining outdoor heat exchanger 22 is less than -1 DEG C of the first preset temperature, then 21 direct speed-changing of outdoor fan is
1000 revs/min of operations, are turned to constant.Outdoor fan 21 is in 1000 revs/min of runnings, continuously to detect outdoor heat exchanger
22 Current Temperatures, when the Current Temperatures for detecting outdoor heat exchanger 22 are -4 DEG C, itself and the T3trmin temperature difference are 3 DEG C etc.
In the first fiducial temperature, meet defrost condition.
Further, after air conditioner 100 enters defrost pattern operation, the rotating speed of outdoor fan 21 switches to 0 rev/min, or
Outdoor fan 21 is shut down.The state of outdoor fan 21 is kept constant during defrost, when the temperature for detecting outdoor heat exchanger 22 is big
In 14 DEG C of the second preset temperature, or the defrost time reaches 8 minutes, then air conditioner 100 exits defrost pattern, goes to heating mould
Formula.
The air conditioner of the embodiment of the present invention, condensed water can be formed for air conditioner heat-production operation, by reasonable time,
Rule of judgment is set according to temperature, direction of rotation, fan operation rotating speed of blower fan etc. are controlled, so as to form negative-pressure air-suction and malleation
Air-supply alternating, reach and accelerate condensed water discharge, delay the effect of outer machine frosting, improve the heating effect experience of user.
In addition, the air conditioner of the embodiment of the present invention other compositions and effect for one of ordinary skill in the art and
Speech is all known, in order to reduce redundancy, is not repeated herein.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (16)
1. a kind of control method of air conditioner, it is characterised in that the air conditioner includes indoor set and outdoor unit, the outdoor unit
Including outdoor fan and outdoor heat exchanger, the described method comprises the following steps：
A. when air conditioner goes to heating mode, judge whether the heating time of the air conditioner reaches the first preset time；
B. if it is, recording the temperature T3tr of the outdoor heat exchanger, and the outdoor fan is switched to the first operational mode,
And after the second preset time is postponed, record the minimum temperature of the outdoor heat exchanger in second preset time
T3trmin；
C. when the time that the outdoor fan is run with present mode of operation reaching three preset times, record the outdoor and change
The temperature T3tz of hot device, if the difference between the T3trmin and the T3tz is less than the first fiducial temperature, and the T3tr
Difference between the T3tz is not more than the second fiducial temperature, then switches the outdoor fan to the second operational mode；
D. when the time that the outdoor fan is run with present mode of operation reaching four preset times, record the outdoor and change
The temperature T3tz ' of hot device, if the difference between the T3trmin and the T3tz ' is less than the first fiducial temperature, and it is described
Difference between T3tr and the T3tz ' is more than second fiducial temperature, judges whether the T3tz ' is default not less than first
Temperature, if it is switch the outdoor fan to first operational mode, and return to the step c.
2. the control method of air conditioner according to claim 1, it is characterised in that described when air conditioner goes to heating mode
When, in addition to：
Detect outdoor temperature；
The initial launch pattern of the outdoor fan is obtained according to the outdoor temperature.
3. the control method of air conditioner according to claim 1, it is characterised in that also include：
The 3rd preset time and/or the described 4th are not up to when the time that the outdoor fan is run with present mode of operation
During preset time, judge whether the difference between the Current Temperatures of the T3trmin and the outdoor heat exchanger is not less than first
Fiducial temperature, if it is the air conditioner go to defrost pattern；And
Reach the 3rd preset time and/or described 4th pre- when the time that the outdoor fan is run with present mode of operation
If time, and the difference between the T3trmin and the T3tz and/or the T3tz ' is not less than the first fiducial temperature, then institute
State air conditioner and go to defrost pattern.
4. the control method of air conditioner according to claim 1, it is characterised in that described when the outdoor fan is with current
The time of operational mode operation is not up to the 3rd preset time and/or the 4th preset time, and the T3trmin with
It is less than the first fiducial temperature described in difference between the Current Temperatures of the outdoor heat exchanger, then the outdoor fan keeps current
Operational mode.
5. the control method of air conditioner according to claim 1, it is characterised in that if the T3trmin with it is described
Difference between T3tz and/or the T3tz ' is less than first fiducial temperature, and the T3tr and the T3tz and/or institute
The difference stated between T3tz ' is more than the second fiducial temperature, then judges whether the T3tz and/or T3tz ' is less than the first default temperature
Degree, if it is controls the outdoor fan to be run with rotating speed of target, turns to constant；
Judge the Current Temperatures of the outdoor heat exchanger when T3trmin is run with the outdoor fan with the rotating speed of target
Between difference whether be not less than first fiducial temperature, if it is the air conditioner goes to defrost pattern.
6. the control method of air conditioner according to claim 5, it is characterised in that if the T3trmin with it is described
Difference between T3tz is less than first fiducial temperature, and the difference between the T3tr and the T3tz is more than second and preset
The temperature difference, then judge whether the T3tz is less than the first preset temperature, if otherwise switching the outdoor fan to the described second fortune
Row mode.
7. the control method of air conditioner according to claim 3, it is characterised in that the air conditioner goes to defrost pattern fortune
After row, including：
When the Current Temperatures for detecting the outdoor heat exchanger are not less than the second preset temperature, the air conditioner goes to heating mould
Formula is run；And
When defrost pattern run time reaches five preset times, the air conditioner goes to heating mode operation.
8. the control method of the air conditioner according to claim any one of 1-7, it is characterised in that first preset time
For 10 minutes, second preset time was 2 minutes, and the 3rd preset time is 5 minutes, and the 4th preset time is 10
Minute, first fiducial temperature is 3 DEG C, and second fiducial temperature is 0 DEG C, and first preset temperature is -1 DEG C, described
Second preset temperature is 14 DEG C, and the rotating speed of first operational mode is 950 revs/min, is turned to as reversion, second operation
The rotating speed of pattern is 850 revs/min, is turned to rotate forward.
A kind of 9. air conditioner, it is characterised in that the air conditioner includes indoor set, outdoor unit and controller, wherein, the outdoor
Machine includes outdoor fan and outdoor heat exchanger, and the controller is used for：
A. when air conditioner goes to heating mode, judge whether the heating time of the air conditioner reaches the first preset time；
B. if it is, recording the temperature T3tr of the outdoor heat exchanger, and the outdoor fan is switched to the first operational mode,
And after the second preset time is postponed, record the minimum temperature of the outdoor heat exchanger in second preset time
T3trmin；
C. when the time that the outdoor fan is run with present mode of operation reaching three preset times, record the outdoor and change
The temperature T3tz of hot device, if the difference between the T3trmin and the T3tz is less than the first fiducial temperature, and the T3tr
Difference between the T3tz is not more than the second fiducial temperature, then switches the outdoor fan to the second operational mode；
D. when the time that the outdoor fan is run with present mode of operation reaching four preset times, record the outdoor and change
The temperature T3tz ' of hot device, if the difference between the T3trmin and the T3tz ' is less than the first fiducial temperature, and it is described
Difference between T3tr and the T3tz ' is more than second fiducial temperature, judges whether the T3tz ' is default not less than first
Temperature, if it is switch the outdoor fan to first operational mode, and circulate and perform the c-d.
10. air conditioner according to claim 9, it is characterised in that described when air conditioner goes to heating mode, the control
Device processed is additionally operable to：
Detect outdoor temperature；
The initial launch pattern of the outdoor fan is obtained according to the outdoor temperature.
11. air conditioner according to claim 9, it is characterised in that the controller is additionally operable to：
Reach the 3rd preset time and/or described 4th pre- when the time that the outdoor fan is run with present mode of operation
If the time, and when the difference between the T3trmin and the T3tz and/or the T3tz ' is not less than the first fiducial temperature, control
Make the air conditioner and go to defrost pattern；And
The 3rd preset time and/or the described 4th are not up to when the time that the outdoor fan is run with present mode of operation
During preset time, judge whether the difference between the Current Temperatures of the T3trmin and the outdoor heat exchanger is not less than first
Fiducial temperature, the air conditioner is if it is controlled to go to defrost pattern.
12. air conditioner according to claim 9, it is characterised in that the air conditioner is additionally operable to：
The 3rd preset time and/or the described 4th are not up to when the time that the outdoor fan is run with present mode of operation
During preset time, and the difference between the Current Temperatures of the T3trmin and the outdoor heat exchanger is less than the first default temperature
Difference, then the outdoor fan is controlled to keep present mode of operation.
13. air conditioner according to claim 9, it is characterised in that the air conditioner is additionally operable to：
If the difference between the T3trmin and the T3tz and/or the T3tz ' is less than the first fiducial temperature, and described
Difference between T3tr and the T3tz and/or the T3tz ' is more than the second fiducial temperature, then judge the T3tz and/or
Whether T3tz ' is less than the first preset temperature, if it is controls the outdoor fan to be run with rotating speed of target；
Judge the Current Temperatures of the outdoor heat exchanger when T3trmin is run with the outdoor fan with the rotating speed of target
Between difference whether be not less than first fiducial temperature, if it is control the air conditioner to go to defrost pattern.
14. air conditioner according to claim 13, it is characterised in that the air conditioner is additionally operable to：
If the difference between the T3trmin and the T3tz is less than the first fiducial temperature, and the T3tr and T3tz
Between difference be more than the second fiducial temperature, then judge whether the T3tz is less than the first preset temperature, if otherwise switching institute
Outdoor fan is stated to the second operational mode.
15. air conditioner according to claim 11, it is characterised in that after the air conditioner goes to defrost pattern operation, institute
Air conditioner is stated to be additionally operable to：
When the Current Temperatures for detecting the outdoor heat exchanger are not less than the second preset temperature, the air conditioner is controlled to go to system
Heat pattern is run；And
When defrost pattern run time reaches five preset times, the air conditioner is controlled to go to heating mode operation.
16. according to the air conditioner any one of claim 9-15, it is characterised in that first preset time is 10 points
Clock, second preset time are 2 minutes, and the 3rd preset time is 5 minutes, and the 4th preset time is 10 minutes,
First fiducial temperature is 3 DEG C, and second fiducial temperature is 0 DEG C, and first preset temperature is -1 DEG C, and described second is pre-
If temperature is 14 DEG C, the rotating speed of first operational mode is 950 revs/min, is turned to invert, second operational mode
Rotating speed is 850 revs/min, is turned to rotate forward.
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| CN110631182B (en) * | 2018-06-21 | 2021-10-29 | 青岛海尔空调器有限总公司 | Deicing control method for air conditioner outdoor unit chassis |
| CN110454913B (en) * | 2019-08-05 | 2021-09-21 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
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