CN103574831A - Dust removing control method for heat exchanger of outdoor unit of air-cooled air conditioner - Google Patents
Dust removing control method for heat exchanger of outdoor unit of air-cooled air conditioner Download PDFInfo
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- CN103574831A CN103574831A CN201210255825.9A CN201210255825A CN103574831A CN 103574831 A CN103574831 A CN 103574831A CN 201210255825 A CN201210255825 A CN 201210255825A CN 103574831 A CN103574831 A CN 103574831A
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Abstract
The invention provides a dust removing control method for a heat exchanger of an outdoor unit of an air-cooled air conditioner. After a user stops using the air conditioner, a motor and centrifugal fan blades of the outdoor unit of the air-cooled air conditioner run in a reversed rotating mode under the control of a main control board, the motor and the centrifugal fan blades first run for T1 at the highest reversed rotating running speed V1, are switched to the next gear to fun for T2 at higher reversed rotating running speed V2, and are switched to the lower-speed gears sequentially according to the same control method till the motor and the fan blades run for Ti at the lowest reversed rotating running speed Vi. When running time reaches the total set running time T, the motor and the centrifugal fan blades of the outdoor unit stop running. By means of the method, dust on the heat exchanger of the outdoor unit of the air-cooled air conditioner can be well removed, heat exchange performance of the heat exchanger is improved, refrigeration and heating effects of the air conditioner are improved, the service life of parts of the air conditioner are not affected, and the method can provide comfortable living conditions for users.
Description
Technical field
The invention belongs to technical field of refrigeration equipment, relate in particular to the control method of a kind of air cooled air conditioner off-premises station heat exchanger dedusting.
Background technology
Existing split type air cooled air conditioner off-premises station heat exchanger contacts with air and carries out heat exchange always, owing to containing dust in air, after long-term deposition, the fin of blocking heat-exchanger, the operating efficiency that reduces heat exchanger, also increases windage, affects the life-span of outdoor motor.Conventional for the method for heat exchanger dedusting is manually to clean, but this complicated operation, difficulty particularly work as air-conditioner outdoor unit and be arranged on skyscraper, can cause great difficulty and unsafe factor.
The method of controlling of the dust arrester of existing a kind of heat exchanger of outdoor machine of air conditioner, this method of controlling is just controlled fan with a constant speed reversion operation dedusting, there is following defect: because the fan blade on off-premises station designs by forward, if move with high speed reverse rotation always, will certainly shorten the life-span of off-premises station fan blade, destroy off-premises station fan blade; If send out transhipment row with low speed always, will affect the effect of dedusting, the process of whole dedusting also needs long period of time to realize.
Summary of the invention
The object of the present invention is to provide a kind of control method that is easy to realize, do not affect the air cooled air conditioner off-premises station heat exchanger dedusting in system parts life-span, be intended to overcome that existing heat exchanger dedusting control method has affects system parts life-span or the undesirable defect of dust removing effects, guarantee the heat exchange property of heat exchanger.
To achieve these goals, the technical solution adopted in the present invention is:
A control method for air cooled air conditioner off-premises station heat exchanger dedusting, the master control borad of the air-conditioner being joined by the motor with described air-conditioner outdoor unit is controlled and is carried out, and on described motor, is equipped with centrifugation blade, and described control method comprises the following steps:
User detected and stop using air-conditioner;
Control motor and centrifugation blade rotating speed reversion operation to reduce successively on default gear of described air-conditioner outdoor unit;
When the time of the motor of described air-conditioner outdoor unit and centrifugation blade reversion operation, reach default operation total time, motor and the centrifugation blade of controlling described air-conditioner outdoor unit are out of service.According to the present invention, user stops using after air-conditioner, the motor of air cooled air conditioner off-premises station and centrifugation blade are under master control borad is controlled, rotating speed reversion operation to reduce successively on default gear, first with maximum inversion running speed V1 running time T 1, then be switched to the higher reversion running speed V2 running time T 2 of next shelves, by identical method of controlling, toward next grade of low rotating speed of rotating speed, switch successively, until on the minimum inversion running speed Vi setting running time T i.When running time, reach after total setting running time T, motor and the centrifugation blade of air-conditioner outdoor unit are out of service, and air-conditioner is formally closed.Technical scheme provided by the invention can be removed the dust on air cooled air conditioner off-premises station heat exchanger preferably, improve the heat exchange property of heat exchanger, promote air-conditioner cooling or heating effect, do not affect again the service life of air-conditioner parts, can create more comfortable living condition for user.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the control method of the air cooled air conditioner off-premises station heat exchanger dedusting that provides of the embodiment of the present invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The control method of air cooled air conditioner off-premises station heat exchanger provided by the invention dedusting, the motor of air-conditioner outdoor unit and the master control borad of air-conditioner join, on motor, be equipped with centrifugation blade, after user stops using air-conditioner, motor and the centrifugation blade reversion of by the master control borad of air-conditioner, being controlled off-premises station operate to the dedusting of off-premises station heat exchanger, concrete steps are: when the master control borad of air-conditioner detects user and stops using air-conditioner, control motor and centrifugation blade rotating speed reversion operation to reduce successively on default gear of off-premises station, carry out dedusting; When the time of the motor of off-premises station and centrifugation blade reversion operation, reach default operation during total time, motor and the centrifugation blade of off-premises station are out of service, and air-conditioner is just formally closed.
Fig. 1 shows the realization flow of the control method of the air cooled air conditioner off-premises station heat exchanger dedusting that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the present embodiment, as shown in the figure:
In step S1, user detected and stop using air-conditioner.
In embodiments of the present invention, this step is steps necessary of the present invention.Because being the heat exchanger for air cooled air conditioner off-premises station, the inventive method carries out dedusting control, therefore in the normal use procedure of air-conditioner, this dedusting control method cannot be implemented.
In step S2, control motor and centrifugation blade rotating speed reversion operation to reduce successively on default gear of described air-conditioner outdoor unit.
In embodiments of the present invention, this step is steps necessary of the present invention.Compared to existing be control fan in the middle of heat exchanger dedusting technology with a constant speed reversion operation, the present invention has made sizable improvement.In specific implementation process, the motor of air cooled air conditioner off-premises station and centrifugation blade be the rotating speed reversion operation to reduce successively on default gear under the control of master control borad, first with maximum inversion running speed V1 running time T 1, be switched to again the higher reversion running speed V2 running time T 2 of next shelves, by identical method of controlling, toward next grade of low rotating speed of rotating speed, switch successively, until on the minimum inversion running speed Vi setting running time T i.From rotating speed, reduced successively the speed V1>V2> of outdoor fan reversion operation ... >Vi-1>Vi.
As a preferred embodiment of the present invention, the maximum speed V1 of the motor of air-conditioner outdoor unit and centrifugation blade reversion operation is less than or equals the maximum speed of its forward, and the gear number i of rotating speed is less than or equals motor and the attainable rotating speed gear number of centrifugation blade forward of air-conditioner outdoor unit, and i is less than or equals 100.
In step S3, when the time of the motor of described air-conditioner outdoor unit and centrifugation blade reversion operation, reach default operation total time, motor and the centrifugation blade of controlling described air-conditioner outdoor unit are out of service.
In embodiments of the present invention, this step is equally also steps necessary of the present invention.When the time of the motor of off-premises station and centrifugation blade reversion operation reaches default operation total time T, it is out of service that master control borad is controlled motor and the centrifugation blade of off-premises station.On the minimum inversion running speed Vi that the motor of off-premises station and centrifugation blade are being set during running time T i, reach running time after default operation total time T, during T1+T2+-------+Ti-1+Ti=T, motor and the centrifugation blade of off-premises station are out of service.
As a preferred embodiment of the present invention, in order not make the motor of off-premises station and centrifugation blade buty shifting, deceleration, affect the service life of himself, wherein reversion operation total time T and the time T 1, the T2 that on each gear rotating speed, move ... Ti is greater than or equals 6 seconds.
In specific implementation process, corresponding running time T 1, the T2 of every grade of rotating speed Vi of the motor of off-premises station and centrifugation blade ... Ti can equate, also can be unequal, but be all greater than or equal 6 seconds.Through multiple authentication, air cooled air conditioner off-premises station utilizes this dedusting method of controlling, under normal circumstances, only needs the total time T of outdoor fan reversion operation within 600 seconds, just the dust on heat exchanger can both be removed clean.
With two specific embodiments, briefly explain the implementation procedure of the control method of air cooled air conditioner off-premises station heat exchanger provided by the invention dedusting below.
Example one:
The gear number of the motor of the off-premises station that false wind cooling air conditioner off-premises station heat exchanger dedusting master control borad is set and centrifugation blade reversion running speed is 4 grades, and every grade of reversion running speed is specifically in Table (1), and be all 60 seconds the running time of every grade of reversion rotating speed.
Table (1): each grade of revolution counter of outdoor fan reversion operation
| Reversion operational taps | V 1 | V 2 | V 3 | V 4 |
| Reversion running speed (RPM, revolutions per minute) | 850 | 700 | 550 | 400 |
| Corresponding running time (second) | 60 | 60 | 60 | 60 |
When user stops using air-conditioner, master control borad detects this signal, the motor of air cooled air conditioner off-premises station and centrifugation blade are under the control of master control borad, first at full throttle V1 is 850RPM reversion operation 60 seconds, being switched to fair speed V2 is 700RPM reversion operation 60 seconds again, and continuing to be again switched to third gear speed V3 is 550RPM reversion operation 60 seconds, finally take minimum speed V4 as 400RPM reversion operation 60 seconds, now, outdoor fan is just out of service.So far, the dust removal process of air cooled air conditioner off-premises station heat exchanger finishes.
Example two:
The gear number of the motor of the off-premises station that false wind cooling air conditioner off-premises station heat exchanger dedusting master control borad is set and centrifugation blade reversion running speed is 3 grades, every grade of reversion running speed is specifically in Table (2), each grade of difference running time that reversion rotating speed is corresponding, is respectively 120 seconds, 90 seconds and 60 seconds.
Table (2): each grade of reversion running speed table of outdoor motor
| Reversion operational taps | V 1 | V 2 | V 3 |
| Reversion running speed (RPM, revolutions per minute) | 800 | 700 | 600 |
| Corresponding running time (second) | 120 | 90 | 60 |
When user stops using air-conditioner, master control borad detects this signal, the motor of air cooled air conditioner off-premises station and centrifugation blade are under the control of master control borad, first at full throttle V1 is 800RPM reversion operation 120 seconds, being switched to fair speed V2 is 700RPM reversion operation 90 seconds again, finally take minimum speed V3 as 600RPM reversion operation 60 seconds, and now, outdoor fan is just out of service.So far, the dust removal process of air cooled air conditioner off-premises station heat exchanger finishes.
From above-described embodiment, can draw, in the control method of air cooled air conditioner off-premises station heat exchanger provided by the invention dedusting, the reversion running speed gear number i of the motor of described off-premises station and centrifugation blade can adjust by actual demand, as 2 grades, 5 grades, 7 grades etc., running time T i corresponding to reversion rotating speed on each gear is also variable, do not repeat them here.
The control method of air cooled air conditioner off-premises station heat exchanger provided by the invention dedusting, user, stop using after air-conditioner, the motor of air cooled air conditioner off-premises station and centrifugation blade be reversion operation under master control borad is controlled, first with maximum inversion running speed V1 running time T 1, be switched to again the higher reversion running speed V2 running time T 2 of next shelves, by identical method of controlling, toward next grade of low rotating speed of rotating speed, switch successively, until on the minimum inversion running speed Vi setting running time T i.When running time, reach after total setting running time T, motor and the centrifugation blade of off-premises station are out of service, and the dust removal process of air cooled air conditioner off-premises station heat exchanger finishes.Technical scheme provided by the invention can be removed the dust on air cooled air conditioner off-premises station heat exchanger preferably, improve the heat exchange property of heat exchanger, promote air-conditioner cooling or heating effect, do not affect again the service life of air-conditioner parts, can create more comfortable living condition for user.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although the present invention has been carried out to more detailed explanation with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified or part technical characterictic is wherein equal to replacement.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the control method of air cooled air conditioner off-premises station heat exchanger dedusting, the master control borad of the air-conditioner being joined by the motor with described air-conditioner outdoor unit is controlled and is carried out, on described motor, be equipped with centrifugation blade, it is characterized in that, described control method comprises the following steps:
User detected and stop using air-conditioner;
Control motor and centrifugation blade rotating speed reversion operation to reduce successively on default gear of described air-conditioner outdoor unit;
When the time of the motor of described air-conditioner outdoor unit and centrifugation blade reversion operation, reach default operation total time, motor and the centrifugation blade of controlling described air-conditioner outdoor unit are out of service.
2. the control method of air cooled air conditioner off-premises station heat exchanger as claimed in claim 1 dedusting, it is characterized in that, rotating speed on the default gear of the motor of described air-conditioner outdoor unit and centrifugation blade is all less than or equal to the motor of described air-conditioner outdoor unit and the maximum speed of centrifugation blade forward, and to the slow-speed of revolution, switches successively from high rotating speed.
3. the control method of air cooled air conditioner off-premises station heat exchanger as claimed in claim 1 dedusting, it is characterized in that, the number of the default gear of the motor of described air-conditioner outdoor unit and centrifugation blade is less than or equal to motor and the attainable rotating speed gear number of centrifugation blade forward of described air-conditioner outdoor unit, and the number of described gear is in 100.
4. the control method of the air cooled air conditioner off-premises station heat exchanger dedusting as described in claim 1-3 any one, is characterized in that, the motor of described air-conditioner outdoor unit and centrifugation blade equate, and be not less than 6 seconds the running time on each gear rotating speed.
5. the control method of the air cooled air conditioner off-premises station heat exchanger dedusting as described in claim 1-3 any one, it is characterized in that, Shuo on each gear rotating speed is not exclusively equal running time for the motor of described air-conditioner outdoor unit and centrifugation blade, and is all not less than 6 seconds.
6. the control method of the air cooled air conditioner off-premises station heat exchanger dedusting as described in claim 1-3 any one, is characterized in that, described default operation total time is less than or equal to 600 seconds.
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| CN201210255825.9A CN103574831B (en) | 2012-07-23 | 2012-07-23 | The control method of a kind of air cooled air conditioner heat exchanger of outdoor unit dedusting |
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| CN201210255825.9A CN103574831B (en) | 2012-07-23 | 2012-07-23 | The control method of a kind of air cooled air conditioner heat exchanger of outdoor unit dedusting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374044A (en) * | 2014-10-22 | 2015-02-25 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN105371415A (en) * | 2014-08-21 | 2016-03-02 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit and filth blockage control method thereof |
| CN106871390A (en) * | 2017-04-24 | 2017-06-20 | 广东美的暖通设备有限公司 | Dedusting control method, dedusting control device and air-conditioner |
| CN107013980A (en) * | 2017-04-18 | 2017-08-04 | 珠海格力电器股份有限公司 | Air conditioner internal unit, air conditioner and control method for air conditioner |
| CN112696799A (en) * | 2020-12-18 | 2021-04-23 | 宁波奥克斯电气股份有限公司 | Cleaning control method and device for air conditioner outdoor unit and air conditioner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105371415A (en) * | 2014-08-21 | 2016-03-02 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit and filth blockage control method thereof |
| CN105371415B (en) * | 2014-08-21 | 2018-02-06 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit and its dirty blocking control method |
| CN104374044A (en) * | 2014-10-22 | 2015-02-25 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN107013980A (en) * | 2017-04-18 | 2017-08-04 | 珠海格力电器股份有限公司 | Air conditioner internal unit, air conditioner and control method for air conditioner |
| CN106871390A (en) * | 2017-04-24 | 2017-06-20 | 广东美的暖通设备有限公司 | Dedusting control method, dedusting control device and air-conditioner |
| CN106871390B (en) * | 2017-04-24 | 2020-04-07 | 广东美的暖通设备有限公司 | Dust removal control method, dust removal control device and air conditioner |
| CN112696799A (en) * | 2020-12-18 | 2021-04-23 | 宁波奥克斯电气股份有限公司 | Cleaning control method and device for air conditioner outdoor unit and air conditioner |
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