CN109458693B - Air conditioner external fan control method and device and air conditioner - Google Patents
Air conditioner external fan control method and device and air conditioner Download PDFInfo
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- CN109458693B CN109458693B CN201811297886.5A CN201811297886A CN109458693B CN 109458693 B CN109458693 B CN 109458693B CN 201811297886 A CN201811297886 A CN 201811297886A CN 109458693 B CN109458693 B CN 109458693B
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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
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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
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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
- 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
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Abstract
The invention provides an air conditioner external fan control method, an air conditioner external fan control device and an air conditioner, wherein the air conditioner external fan control method comprises the following steps: judging whether the running time of the compressor is greater than a time threshold value, if so, entering the next step; judging whether the external environment temperature is greater than an external environment temperature threshold value, if so, entering the next step; and controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil. The air conditioner external fan control method and device and the air conditioner solve the problem that the heat exchange capacity of a system is poor due to the fact that the blades of the external fan are deposited with dust or a condenser is dirty and blocked when the environment temperature is high, and effectively improve the refrigeration effect.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner external fan control method and device and an air conditioner.
Background
The air conditioner outer fan is used as an important heat exchange device of the system, and the control of the rotating speed of the air conditioner outer fan directly influences the refrigeration effect. At present, the rotating speed of an external fan is mainly controlled through the ambient temperature, and the higher the ambient temperature is, the higher the external rotating speed is.
However, if the ambient temperature is high, the heat exchange capacity of the system is poor due to the fact that the outer fan blades are accumulated with dust or the condenser is dirty and blocked, and the refrigeration effect cannot be effectively improved by controlling the outer rotating speed according to the external ambient temperature.
Disclosure of Invention
In view of the above, the present invention aims to provide an air conditioner external fan control method, an air conditioner external fan control device and an air conditioner, so as to solve the problem that the heat exchange capability of a system is deteriorated due to the deposition of dust on the fan blades of the external fan or the dirty blockage of a condenser when the environmental temperature is high, and effectively improve the refrigeration effect.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner external fan control method comprises the following steps:
judging whether the running time of the compressor is greater than a time threshold value, if so, entering the next step;
judging whether the external environment temperature is greater than an external environment temperature threshold value, if so, entering the next step;
and controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil.
Further, before the step of determining whether the external environment temperature is greater than an external environment temperature threshold, the method further includes: and acquiring an external environment temperature sampling signal, and performing filtering conversion on the external environment temperature sampling signal so as to determine the external environment temperature.
Further, the step of controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil includes:
determining the rotating speed N1 of a first external fan of the air conditioner according to the external environment temperature;
correcting the rotating speed N1 of the first outer fan of the air conditioner according to the temperature of the outer coil pipe of the air conditioner to obtain the rotating speed N2 of the second outer fan of the air conditioner;
and controlling the operation of the air conditioner external fan according to the obtained rotating speed N2 of the air conditioner second external fan.
Further, the step of correcting the rotating speed N1 of the first external air blower of the air conditioner according to the temperature of the external coil of the air conditioner to obtain the rotating speed N2 of the second external air blower of the air conditioner comprises:
judging whether the temperature of the outer coil of the air conditioner is greater than a first outer coil temperature threshold value or not, and if so, adopting a first outer fan rotating speed compensation value NCompensation 1Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 1(ii) a If not, entering the next step;
judging whether the temperature of the outer coil of the air conditioner is greater than a second outer coil temperature threshold value or not, if so, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 2(ii) a If not, the rotating speed of the external fan of the air conditioner is not corrected.
Further, before the step of determining whether the temperature of the external coil of the air conditioner is greater than a first external coil temperature threshold, the method further includes: and acquiring a temperature sampling signal of the air conditioner external coil, and performing filtering conversion on the temperature sampling signal of the air conditioner external coil so as to determine the temperature of the air conditioner external coil.
Further, the time threshold is between 2 and 6 minutes, the external environment temperature threshold is between 38 and 49 ℃, the first external coil temperature threshold is between 57 and 68 ℃, the second external coil temperature threshold is between 55 and 63 ℃, the first external fan rotation speed compensation value is between 85 and 110 revolutions, and the second external fan rotation speed compensation value is between 48 and 66 revolutions.
An air conditioner external fan control device comprising:
the first judgment module is used for judging whether the running time of the compressor is greater than a time threshold value or not;
the second judgment module is used for judging whether the external environment temperature is greater than an external environment temperature threshold value when the running time of the compressor is greater than the time threshold value; and
and the control module is used for controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil pipe when the external environment temperature is greater than the external environment temperature threshold value.
Further, the control module includes:
the rotating speed determining unit is used for determining the rotating speed N1 of the first outer air blower of the air conditioner according to the external environment temperature and correcting the rotating speed N1 of the first outer air blower of the air conditioner according to the temperature of an outer coil of the air conditioner when the external environment temperature is larger than the external environment temperature threshold value to obtain the rotating speed N2 of the second outer air blower of the air conditioner; and
the control unit is connected with the rotating speed determining unit and used for controlling the operation of the air conditioner external fan according to the determined rotating speed N2 of the air conditioner second external fan;
when the temperature of the air conditioner external coil is greater than a first external coil temperature threshold value, the rotating speed determining unit adopts a first external fan rotating speed compensation value NCompensation 1Correcting the rotating speed N1 of the first outer fan of the air conditioner to obtain a second outer fan of the air conditionerSpeed N2, N2 ═ N1+ NCompensation 1(ii) a When the temperature of the outer coil of the air conditioner is more than a second outer coil temperature threshold and less than or equal to the first outer coil temperature threshold, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 2(ii) a And when the temperature of the air conditioner external coil is less than or equal to the second external coil temperature threshold, not correcting the rotating speed of the air conditioner external fan.
Further, the time threshold is between 2 and 6 minutes, the external environment temperature threshold is between 38 and 49 ℃, the first external coil temperature threshold is between 57 and 68 ℃, the second external coil temperature threshold is between 55 and 63 ℃, the first external fan rotation speed compensation value is between 85 and 110 revolutions, and the second external fan rotation speed compensation value is between 48 and 66 revolutions.
The air conditioner is characterized by comprising the air conditioner external fan control device.
Compared with the prior art, the air conditioner external fan control method, the device and the air conditioner have the following advantages:
(1) compared with the prior art that the operation of the external fan of the air conditioner is controlled by adopting a single environment temperature factor, the operation of the external fan of the air conditioner is controlled by adopting a plurality of factors including the operation time of a compressor, the external environment temperature and the temperature of an external coil pipe, so that the operation of the external fan of the air conditioner is more accurately controlled, and the refrigeration effect is favorably improved.
(2) By judging the running time of the compressor, the external environment temperature and the temperature of the external coil pipe are detected, and compared with a set threshold value, the rotating speed compensation value of the external fan is determined, so that the problem of the heat exchange capacity deterioration of the system is solved, and the refrigeration effect is effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of an external fan control method of an air conditioner according to the present invention.
FIG. 2 is another flow chart of the method for controlling the external fan of the air conditioner according to the present invention.
Fig. 3 is another flowchart of the method for controlling the external fan of the air conditioner according to the present invention.
Fig. 4 is a schematic structural diagram of an external fan control device of an air conditioner according to the present invention.
Fig. 5 is a schematic structural diagram of a control module for controlling an external fan of an air conditioner according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention provides an air conditioner external fan control method, as shown in fig. 1, the air conditioner external fan control method comprises the following steps:
judging whether the running time of the compressor is greater than a time threshold value, if so, entering the next step;
judging whether the external environment temperature is greater than an external environment temperature threshold value, if so, entering the next step; and controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of an air conditioner external coil (external coil for short).
Compared with the prior art that the operation of the external fan of the air conditioner is controlled by adopting a single environment temperature factor, the operation of the external fan of the air conditioner is controlled by adopting a plurality of factors including the operation time of a compressor, the external environment temperature and the temperature of an external coil pipe, so that the operation of the external fan of the air conditioner is more accurately controlled, and the refrigeration effect is favorably improved.
In order to accurately determine the external environment temperature, the method for controlling the external fan of the air conditioner further comprises the following steps before judging whether the external environment temperature is greater than an external environment temperature threshold value: and acquiring an external environment temperature sampling signal, and performing filtering conversion on the external environment temperature sampling signal. Therefore, whether the external environment temperature obtained after filtering conversion is larger than an external environment temperature threshold value is judged.
Further, the step of controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil includes:
determining the rotating speed N1 of a first external fan of the air conditioner according to the external environment temperature;
correcting the rotating speed N1 of the first outer fan of the air conditioner according to the temperature of the outer coil pipe of the air conditioner to obtain the rotating speed N2 of the second outer fan of the air conditioner; and
and controlling the operation of the air conditioner external fan according to the obtained rotating speed N2 of the air conditioner second external fan.
The step of correcting the rotating speed N1 of the first outer fan of the air conditioner according to the temperature of the outer coil pipe of the air conditioner to obtain the rotating speed N2 of the second outer fan of the air conditioner comprises the following steps:
judging whether the temperature of the outer coil of the air conditioner is greater than a first outer coil temperature threshold value or not, and if so, adopting a first outer fan rotating speed compensation value NCompensation 1Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 1(ii) a If not, entering the next step;
judging whether the temperature of the outer coil of the air conditioner is greater than a second outer coil temperature threshold value or not, if so, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 2(ii) a If not, the rotating speed of the external fan of the air conditioner is not corrected.
The running time of the compressor, the temperature of the external environment and the temperature of the external coil are compared with set thresholds, and the rotating speed compensation value (also called rotating speed correction value) of the external fan is determined, so that the problem of the heat exchange capacity deterioration of the system is solved, and the refrigeration effect is effectively improved.
Further, similar to the determining the outside environment temperature, before the step of determining whether the temperature of the air conditioner outside coil is greater than a first outside coil temperature threshold, the method further includes: and acquiring a temperature sampling signal of the air conditioner external coil, and performing filtering conversion on the temperature sampling signal of the air conditioner external coil so as to determine the temperature of the air conditioner external coil. Therefore, whether the temperature of the air conditioner external coil obtained after filtering conversion is larger than a first external coil temperature threshold value is judged.
In order to accurately reflect the load of the system, preferably, the time threshold is between 2 and 6 minutes, the external environment temperature threshold is between 38 and 49 ℃, the first external coil temperature threshold is between 57 and 68 ℃, the second external coil temperature threshold is between 55 and 63 ℃, the first external fan rotation speed compensation value is between 85 and 110 revolutions, and the second external fan rotation speed compensation value is between 48 and 66 revolutions.
In an embodiment, please refer to fig. 2-3, the method for controlling the external fan of the air conditioner according to the present invention specifically includes:
sampling, filtering and converting the external environment temperature and the external coil pipe temperature: respectively sampling an external environment temperature signal and an external coil temperature signal by using an external environment temperature sensor and an external coil temperature sensor, returning the sampling signals through an air conditioner external unit main board, and then carrying out deep filtering on the sampling signals, wherein in the embodiment, the average value is obtained after sampling is carried out for 64 times, and the difference value of sampling in two adjacent times is not more than 2 ℃, or re-sampling is carried out; under different conditions, the filtering depth can be determined according to the actually required control rate, and the AD conversion is carried out after the filtering is finished, so that the accurate external environment temperature and the external coil temperature can be obtained.
Determining whether the compressor run time is greater than a time threshold: because the system load is fully established after the compressor runs for a certain time, and the frequency tends to be stable at the moment, the next external environment temperature judgment is carried out when the running time of the compressor is greater than the time threshold; in this embodiment, the time threshold value is 3 minutes.
Determining whether the external environment temperature is greater than an external environment temperature threshold: when the external environment temperature is higher, the heat exchange effect of the system is poorer, so that the next step of judging the temperature of the external coil and correcting the rotating speed of the external fan is carried out only when the external environment temperature is higher than the external environment temperature threshold; in this embodiment, the value of the external environment temperature threshold is 45 ℃.
Determining the rotating speed of an air conditioner external fan according to the external environment temperature and the temperature of an air conditioner external coil, and controlling the air conditioner external fan to operate according to the determined rotating speed of the air conditioner external fan: because the temperature of the outer coil pipe directly reflects the load condition of the system, when the load of the system is large, if the heat exchange effect is deteriorated due to factors such as dust accumulation of an outer fan or dirty blockage of a condenser, the refrigerating effect of the air conditioner is affected, and therefore different rotating speed compensation values are selected to correct the rotating speed of the outer fan according to the load condition, the problem of deterioration of the heat exchange capacity of the system is improved, and the refrigerating effect is effectively improved based on a judgment result.
Specifically, the rotating speed of an outer fan (namely the rotating speed of a basic outer fan) is determined according to the temperature of the external environment, when the temperature of the outer coil is larger than the temperature threshold value 1 of the outer coil, the rotating speed of the outer fan is increased by a rotating speed compensation value 1 (namely the final rotating speed of the outer fan), when the temperature threshold value 1 of the outer coil is larger than or equal to the temperature threshold value 2 of the outer coil, the rotating speed of the outer fan is increased by a rotating speed compensation value 2 (namely the final rotating speed of the outer fan), and when the temperature of the outer coil is smaller than or equal to the temperature threshold value 2 of the outer coil, the rotating. In this embodiment, the value of the temperature threshold 1 of the external coil pipe is 63 ℃, the value of the temperature threshold 2 of the external coil pipe is 60 ℃, the value of the rotational speed compensation value 1 is 100 revolutions, and the value of the rotational speed compensation value 2 is 50 revolutions.
It should be noted that the time threshold, the external environment temperature threshold value, the external coil temperature threshold value and the rotation speed compensation value are not limited to the specific values in the embodiments, and those skilled in the art can make appropriate adjustments according to actual needs.
The present invention also provides an air conditioner external blower control device, as shown in fig. 4, including:
the first judgment module is used for judging whether the running time of the compressor is greater than a time threshold value or not;
the second judgment module is used for judging whether the external environment temperature is greater than an external environment temperature threshold value when the running time of the compressor is greater than the time threshold value; and
and the control module is used for controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil pipe when the external environment temperature is greater than the external environment temperature threshold value.
Further, as shown in fig. 5, the control module includes:
the rotating speed determining unit is used for determining the rotating speed N1 of the first outer air blower of the air conditioner according to the external environment temperature and correcting the rotating speed N1 of the first outer air blower of the air conditioner according to the temperature of an outer coil of the air conditioner when the external environment temperature is larger than the external environment temperature threshold value to obtain the rotating speed N2 of the second outer air blower of the air conditioner; and
the control unit is connected with the rotating speed determining unit and used for controlling the operation of the air conditioner external fan according to the determined rotating speed N2 of the air conditioner second external fan;
when the temperature of the air conditioner external coil is greater than a first external coil temperature threshold value, the rotating speed determining unit adopts a first external fan rotating speed compensation value NCompensation 1Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 1(ii) a When the temperature of the outer coil of the air conditioner is more than a second outer coil temperature threshold and less than or equal to the first outer coil temperature threshold, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the first external fan rotating speed N1 of the air conditioner to obtain a second external fan rotating speed N2 of the air conditioner, wherein N2 is equal to N1+ NCompensation 2(ii) a And when the temperature of the air conditioner external coil is less than or equal to the second external coil temperature threshold, not correcting the rotating speed of the air conditioner external fan.
The time threshold is between 2 and 6 minutes, the external environment temperature threshold is between 38 and 49 ℃, the first external coil temperature threshold is between 57 and 68 ℃, the second external coil temperature threshold is between 55 and 63 ℃, the first external fan rotating speed compensation value is between 85 and 110 revolutions, and the second external fan rotating speed compensation value is between 48 and 66 revolutions.
In addition, the invention also provides an air conditioner which comprises the air conditioner external fan control device.
According to the air conditioner external fan control method and device and the air conditioner, when the refrigeration effect of the air conditioner is influenced by the condition that the external fan is dusty or the condenser is dirty and the like, the system operation load is determined according to the temperature value of the external coil, and the rotating speed of the external fan is corrected differently under different loads, so that the heat exchange capacity of the system is improved, and the refrigeration effect is enhanced.
The present invention has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize the drainage device of the air conditioner and the air conditioner of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. An air conditioner external fan control method is characterized by comprising the following steps:
judging whether the running time of the compressor is greater than a time threshold value, if so, entering the next step;
judging whether the external environment temperature is greater than an external environment temperature threshold value, if so, entering the next step;
controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil;
wherein the external environment temperature threshold is between 38 and 49 ℃;
wherein, the step of controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil comprises the following steps:
determining the rotating speed N1 of a first external fan of the air conditioner according to the external environment temperature;
correcting the rotating speed N1 of the first outer fan of the air conditioner according to the temperature of the outer coil pipe of the air conditioner to obtain the rotating speed N2 of the second outer fan of the air conditioner;
controlling the air conditioner external fan to operate according to the obtained rotating speed N2 of the air conditioner second external fan;
the step of correcting the rotating speed N1 of the first outer fan of the air conditioner according to the temperature of the outer coil pipe of the air conditioner to obtain the rotating speed N2 of the second outer fan of the air conditioner comprises the following steps:
judging whether the temperature of the outer coil of the air conditioner is greater than a first temperatureThe temperature threshold of the outer coil pipe is adopted, if so, the rotating speed compensation value N of the first outer fan is adoptedCompensation 1Correcting the rotating speed N1 of the first external fan of the air conditioner to obtain the rotating speed N2 of the second external fan of the air conditioner, wherein N2= N1+ NCompensation 1(ii) a If not, entering the next step;
judging whether the temperature of the outer coil of the air conditioner is greater than a second outer coil temperature threshold value or not, if so, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the rotating speed N1 of the first external fan of the air conditioner to obtain the rotating speed N2 of the second external fan of the air conditioner, wherein N2= N1+ NCompensation 2(ii) a If not, the rotating speed of the external fan of the air conditioner is not corrected.
2. The control method of claim 1, further comprising, prior to the step of determining whether the external ambient temperature is greater than an external ambient temperature threshold: and acquiring an external environment temperature sampling signal, and performing filtering conversion on the external environment temperature sampling signal so as to determine the external environment temperature.
3. The control method according to claim 1, wherein before the step of determining whether the temperature of the air conditioner external coil is greater than a first external coil temperature threshold, the method further comprises: and acquiring a temperature sampling signal of the air conditioner external coil, and performing filtering conversion on the temperature sampling signal of the air conditioner external coil so as to determine the temperature of the air conditioner external coil.
4. The control method of claim 1, wherein the time threshold is between 2 and 6 minutes, the first outer coil temperature threshold is between 57 and 68 ℃, the second outer coil temperature threshold is between 55 and 63 ℃, the first outer fan speed compensation value is between 85 and 110 revolutions, and the second outer fan speed compensation value is between 48 and 66 revolutions.
5. An external fan control device of an air conditioner, comprising:
the first judgment module is used for judging whether the running time of the compressor is greater than a time threshold value or not;
the second judgment module is used for judging whether the external environment temperature is greater than an external environment temperature threshold value when the running time of the compressor is greater than the time threshold value; and
the control module is used for controlling the operation of the air conditioner external fan according to the external environment temperature and the temperature of the air conditioner external coil pipe when the external environment temperature is greater than the external environment temperature threshold value;
wherein the external environment temperature threshold is between 38 and 49 ℃;
wherein the control module comprises:
the rotating speed determining unit is used for determining the rotating speed N1 of the first outer air blower of the air conditioner according to the external environment temperature and correcting the rotating speed N1 of the first outer air blower of the air conditioner according to the temperature of an outer coil of the air conditioner when the external environment temperature is larger than the external environment temperature threshold value to obtain the rotating speed N2 of the second outer air blower of the air conditioner; and
the control unit is connected with the rotating speed determining unit and used for controlling the operation of the air conditioner external fan according to the determined rotating speed N2 of the air conditioner second external fan;
when the temperature of the air conditioner external coil is greater than a first external coil temperature threshold value, the rotating speed determining unit adopts a first external fan rotating speed compensation value NCompensation 1Correcting the rotating speed N1 of the first external fan of the air conditioner to obtain the rotating speed N2 of the second external fan of the air conditioner, wherein N2= N1+ NCompensation 1(ii) a When the temperature of the outer coil of the air conditioner is more than a second outer coil temperature threshold and less than or equal to the first outer coil temperature threshold, adopting a second outer fan rotating speed compensation value NCompensation 2Correcting the rotating speed N1 of the first external fan of the air conditioner to obtain the rotating speed N2 of the second external fan of the air conditioner, wherein N2= N1+ NCompensation 2(ii) a And when the temperature of the air conditioner external coil is less than or equal to the second external coil temperature threshold, not correcting the rotating speed of the air conditioner external fan.
6. The control device of claim 5, wherein the time threshold is between 2 and 6 minutes, the first outer coil temperature threshold is between 57 and 68 ℃, the second outer coil temperature threshold is between 55 and 63 ℃, the first outer fan speed compensation value is between 85 and 110 revolutions, and the second outer fan speed compensation value is between 48 and 66 revolutions.
7. An air conditioner characterized by comprising the air conditioner external fan control device according to any one of claims 5 to 6.
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| CN110260463B (en) * | 2019-06-21 | 2021-01-22 | 广东美的制冷设备有限公司 | Dust accumulation detection method and device of air conditioner and air conditioner |
| CN110470027B (en) * | 2019-09-19 | 2020-11-10 | 四川虹美智能科技有限公司 | Direct current fan adjusting method, controller and temperature adjusting system |
| CN111023393A (en) * | 2019-11-15 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and system of outdoor fan and air conditioner |
| CN111043705A (en) * | 2019-12-31 | 2020-04-21 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
| CN113063215B (en) * | 2020-01-02 | 2022-10-25 | 青岛海尔空调电子有限公司 | Rotating speed control method of air conditioner external fan |
| CN111365819B (en) * | 2020-03-26 | 2021-11-16 | 宁波奥克斯电气股份有限公司 | Control method and device for adjusting high-temperature refrigerating capacity of air conditioner and air conditioner |
| CN113959052B (en) * | 2021-10-09 | 2023-05-02 | 宁波奥克斯电气股份有限公司 | Air conditioner control method, air conditioner control device and air conditioner |
| CN115235041B (en) * | 2022-07-18 | 2023-11-14 | 株洲麦格米特电气有限责任公司 | Air conditioner fault detection method and device and air conditioner |
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