CN107917516B - Method and device for controlling rotating speed of outdoor fan of air conditioner - Google Patents
Method and device for controlling rotating speed of outdoor fan of air conditioner Download PDFInfo
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- CN107917516B CN107917516B CN201711046355.4A CN201711046355A CN107917516B CN 107917516 B CN107917516 B CN 107917516B CN 201711046355 A CN201711046355 A CN 201711046355A CN 107917516 B CN107917516 B CN 107917516B
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Abstract
The invention discloses a control method of an air conditioner outdoor fan, and belongs to the technical field of air conditioners. The control method comprises the following steps: acquiring the indoor temperature of an indoor area where an air conditioner is located; determining and controlling an outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature; acquiring the temperature of a coil of an air conditioner indoor unit after a set time interval; determining and controlling the outdoor fan to operate at the wind speed of the second outdoor fan according to the temperature of the coil pipe; acquiring the outdoor temperature of an outdoor area where an air conditioner is located; and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature. The invention provides a method for controlling the rotating speed of an outdoor fan of an air conditioner, which can accurately control the air speed of an outdoor unit in two states aiming at an unstable state and a stable state when the air conditioner is started, reduce the influence of the instantaneous pressure difference of the system on an air conditioning system and improve the stability of the operation of the system.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for controlling the rotating speed of an outdoor fan of an air conditioner.
Background
Among the existing air conditioning products, both split air conditioners and integrated air conditioners include two major parts of the outdoor part and the indoor part, and fans and heat exchangers are respectively installed on the outdoor part and the indoor part to respectively exchange heat with the outdoor environment and the indoor environment. In order to achieve a better heat exchange effect, generally, the self rotating speeds of different fans are controlled in the air conditioner operation process, if the heat exchange is required to be accelerated, the rotating speed of the fans can be increased, or if the heat exchange is required to be slowed down, the rotating speed of the fans can be reduced. Therefore, the change of the rotating speed of the fan can be directly related to the heating or cooling performance of the air conditioner.
In the method for controlling the rotating speed of the outdoor fan, particularly under the condition that the fixed-frequency air conditioner is just started for refrigeration operation, because the fixed-frequency air conditioner has only one operating frequency, when a starting signal is received, the fixed-frequency air conditioner can operate at a higher frequency, and because a throttling device of the air conditioner adopts a capillary tube structure, the indoor evaporation pressure cannot be adjusted in real time like an electronic expansion valve, the temperature of a coil pipe of an indoor unit can be quickly reduced in a short time of starting, and the outdoor fan enters a low-speed state according to the existing air conditioner operation program, so that the cold quantity input indoors is reduced, the cooling effect of the air conditioner is influenced, and meanwhile, because the outdoor unit is in a high-pressure state, the fan operates at a low speed, the pressure can be continuously increased, the system pressure difference is increased, and the stability of the whole air conditioner is poor. Similarly, in the heating operation process, the temperature of the indoor coil pipe can rise quickly after the indoor coil pipe is started for heating, when the temperature of the indoor coil pipe is detected to reach over 53 ℃, the outdoor fan is switched to operate at a low speed, liquid refrigerants can not be completely evaporated in the outdoor unit in the period, and if the control method can not balance the system for a long time, a large amount of liquid refrigerants can enter the liquid storage device. These problems can cause the internal pressure of the air conditioning system to change in a large amplitude instantaneously, and the reliability and stability of the whole air conditioning system are affected.
Disclosure of Invention
The invention provides a method and a device for controlling the rotating speed of an outdoor fan of an air conditioner, and aims to solve the problem of operation instability caused by the influence of instantaneous pressure change during the operation of the air conditioner. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the present invention, there is provided a control method of an outdoor fan of an air conditioner, comprising: acquiring the indoor temperature of an indoor area where an air conditioner is located; determining and controlling an outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature; acquiring the temperature of a coil of an air conditioner indoor unit after a set time interval; determining and controlling the outdoor fan to operate at the wind speed of the second outdoor fan according to the temperature of the coil pipe; acquiring the outdoor temperature of an outdoor area where an air conditioner is located; and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
In an alternative embodiment, before determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to a temperature difference between the indoor temperature and the target indoor temperature, the control method further includes: determining an operation mode of an air conditioner, wherein the operation mode comprises a cooling mode and a heating mode; when the operation mode is a refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
In an alternative embodiment, when the operation mode is the cooling mode, determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to a temperature difference between the indoor temperature and the target indoor temperature, and including: when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the first temperature difference value is smaller than a first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first external unit is a low wind speed; when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first external unit is zero; when the operation mode is the heating mode, according to the temperature difference between the indoor temperature and the target indoor temperature, the outdoor fan is determined and controlled to operate at the first outdoor unit wind speed, and the method comprises the following steps: when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to the fourth temperature difference threshold value, the wind speed of the first outdoor unit is low wind speed; and when the second temperature difference value is smaller than the fourth temperature difference threshold value, the wind speed of the first outer unit is zero.
In an alternative embodiment, when the operation mode is the cooling mode, determining and controlling the outdoor fan to operate at the second outdoor fan speed according to the temperature of the coil, includes: when the temperature of the coil pipe is greater than the first coil temperature threshold value, the wind speed of the second external machine is high wind speed; when the temperature of the coil pipe is smaller than a second coil temperature threshold value, the wind speed of the second external machine is low wind speed; when the temperature of the coil pipe is smaller than or equal to the first coil temperature threshold and larger than or equal to the second coil temperature threshold, acquiring the outdoor temperature of an outdoor area where the air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature; when the operation mode is the heating mode, according to coil pipe temperature, confirm and control outdoor fan and use the second outer quick-witted wind speed operation, include: when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed; and when the temperature of the coil pipe is less than or equal to the third coil temperature threshold and greater than or equal to the fourth coil temperature threshold, acquiring the outdoor temperature of an outdoor area where the air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
In an alternative embodiment, when the operation mode is the cooling mode, determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature, the method includes: when the outdoor temperature is higher than the first external temperature threshold value, the wind speed of the third external machine is high wind speed; when the outdoor temperature is less than or equal to the first external temperature threshold and greater than or equal to the second external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed; when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external machine is low wind speed; when the operation mode is a heating mode, determining and controlling the outdoor fan to operate at a third outdoor unit wind speed according to the outdoor temperature, wherein the operation mode comprises the following steps: when the outdoor temperature is higher than a third external temperature threshold value, the wind speed of a third external machine is a low wind speed; when the outdoor temperature is less than or equal to the third external temperature threshold and greater than or equal to the fourth external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed; and when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external machine is the high wind speed.
According to a second aspect of the present invention, there is provided a control apparatus of an outdoor fan of an air conditioner, comprising: the first acquisition module is used for acquiring the indoor temperature of an indoor area where the air conditioner is located; the first determining module is used for determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference value between the indoor temperature and the target indoor temperature; the second acquisition module is used for acquiring the coil temperature of the air conditioner indoor unit after a set time interval; the second determining module is used for determining and controlling the outdoor fan to operate at the wind speed of the second external fan according to the temperature of the coil pipe; the third acquisition module is used for acquiring the outdoor temperature of the outdoor area where the air conditioner is located; and the third determining module is used for determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
In an optional implementation manner, the control apparatus further includes a fourth determining module, and the fourth determining module is configured to: determining an operation mode of the air conditioner before the first determining module determines and controls the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature, wherein the operation mode comprises a cooling mode and a heating mode; when the operation mode is a refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
In an alternative embodiment, the first determining module includes a first determining submodule and a second determining submodule, wherein when the operation mode is the cooling mode, the first determining submodule is configured to: when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the first temperature difference value is smaller than a first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first external unit is a low wind speed; when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first external unit is zero; when the operation mode is the heating mode, the second determination submodule is used for: when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to the fourth temperature difference threshold value, the wind speed of the first outdoor unit is low wind speed; and when the second temperature difference value is smaller than the fourth temperature difference threshold value, the wind speed of the first outer unit is zero.
In an alternative embodiment, the second determination module includes a third determination submodule and a fourth determination submodule, wherein when the operation mode is the cooling mode, the third determination submodule is configured to: when the temperature of the coil pipe is greater than the first coil temperature threshold value, the wind speed of the second external machine is high wind speed; when the temperature of the coil pipe is smaller than a second coil temperature threshold value, the wind speed of the second external machine is low wind speed; when the temperature of the coil pipe is smaller than or equal to the first coil temperature threshold and larger than or equal to the second coil temperature threshold, acquiring the outdoor temperature of an outdoor area where the air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature; when the operation mode is the heating mode, the fourth determination submodule is used for: when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed; and when the temperature of the coil pipe is less than or equal to the third coil temperature threshold and greater than or equal to the fourth coil temperature threshold, acquiring the outdoor temperature of an outdoor area where the air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
In an alternative embodiment, the third determining module includes a fifth determining submodule and a sixth determining submodule, wherein when the operation mode is the cooling mode, the fifth determining submodule is configured to: when the outdoor temperature is higher than the first external temperature threshold value, the wind speed of the third external machine is high wind speed; when the outdoor temperature is less than or equal to the first external temperature threshold and greater than or equal to the second external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed; when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external machine is low wind speed; when the operation mode is the heating mode, the sixth determination submodule is used for: when the outdoor temperature is higher than a third external temperature threshold value, the wind speed of a third external machine is a low wind speed; when the outdoor temperature is less than or equal to the third external temperature threshold and greater than or equal to the fourth external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed; and when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external machine is the high wind speed.
The invention provides a method for controlling the rotating speed of an outdoor fan of an air conditioner, which can accurately control the air speed of an outdoor unit in two states aiming at an unstable state and a stable state when the air conditioner is started, reduce the influence of the instantaneous pressure difference of the system on an air conditioning system and improve the stability of the operation of the system.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a first flowchart illustrating a control method of the present invention according to an exemplary embodiment;
FIG. 2 is a flowchart II illustrating a control method of the present invention according to an exemplary embodiment;
FIG. 3 is a block diagram of the configuration of a control apparatus of the present invention shown in accordance with an exemplary embodiment;
fig. 4 is a block diagram of the structure of the control method of the present invention shown in an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
Fig. 1 is a flow chart illustrating a control method of the present invention according to an exemplary embodiment.
As shown in fig. 1, the present invention provides a method for controlling a rotation speed of an outdoor fan of an air conditioner, which can be used for controlling and adjusting the rotation speed of the outdoor fan when the air conditioner is started or the instantaneous pressure change of the pressure in the internal system of the air conditioner is large, and specifically, the method comprises the following steps:
s101, acquiring the indoor temperature of an indoor area where an air conditioner is located;
in this embodiment and the following embodiments of the present invention, a split type air conditioner is taken as an example, and the split type air conditioner mainly includes an indoor unit and an outdoor unit, wherein the indoor unit is disposed in indoor areas such as a living room and a bedroom, and the outdoor unit is disposed in outdoor areas such as an outer wall and a roof of a building. The indoor unit is provided with a temperature sensor capable of sensing temperature changes in the indoor environment, so that in step S101, the indoor temperature can be detected by the temperature sensor and used as an indoor temperature parameter of the current control process.
Generally, indoor units are respectively arranged in indoor areas such as a living room and a bedroom, each indoor unit is provided with an independent outdoor unit, namely, a common household air conditioner type is operated by one indoor unit and one outdoor unit, therefore, for an air conditioner applying the control method disclosed by the invention, the collected indoor temperature is the temperature parameter of the specific indoor area where the indoor unit is located, for example, for the indoor unit arranged in the living room, the indoor temperature obtained in the air conditioner execution step S101 is the real-time temperature of the living room area; similarly, for the indoor unit arranged in the bedroom, the real-time temperature of the bedroom is acquired by the air conditioner.
For the application scenarios of office buildings, hotels and the like, a commercial air conditioner type with one drive more is mostly adopted, that is, one outdoor unit is simultaneously connected with two or more indoor units to work, wherein different indoor units are respectively located in different indoor areas, therefore, for the commercial air conditioner type, the indoor units in the starting state respectively acquire the indoor temperatures of the corresponding indoor areas through independent temperature sensors, and then the average value of the indoor temperatures is calculated through preset algorithms such as a weighting algorithm and the like and is used as the indoor temperature parameter of the current control flow.
S102, determining and controlling an outdoor fan to operate at a first outdoor unit wind speed according to a temperature difference value between the indoor temperature and the target indoor temperature;
in step S102, the indoor temperature is the indoor temperature parameter obtained in step S101, and the target indoor temperature is a temperature value expected to be achieved indoors and input by the user through the remote controller or the control panel, where, for the above-mentioned household air conditioner type, because it is a structural form in which one indoor unit corresponds to one outdoor unit, the target indoor temperature value in step S102 is a single set temperature value; for the above-mentioned household air conditioner type, because it is a structural form in which one outdoor unit corresponds to a plurality of indoor units, and a user may set target indoor temperatures with different values for different indoor units, the target indoor temperature may be an average value obtained by weighted calculation of the target indoor temperatures set by the plurality of indoor units in the activated state; alternatively, the air conditioner may have default target indoor temperature values for different seasons or different times of the day stored in advance, and the default target indoor temperature values may be used as the target indoor temperatures in step S102.
For example, in one embodiment, the default target indoor temperature values set by the air conditioner include, but are not limited to, 28 ℃ in summer, 20 ℃ in winter, and so forth; alternatively, default target indoor temperature values for different times of the same day in the summer include, but are not limited to, 28 ℃ at 8 points, 25 ℃ at 12 points, 24 ℃ at 15 points, and so on. Therefore, when the set target indoor temperatures received by a plurality of indoor units of the commercial air conditioner type are large in difference, the air conditioner can obtain the target indoor temperature value of the control flow by checking the default target indoor temperature value preset by the system.
In one embodiment, the target indoor temperature is generally lower than the indoor temperature in the summer cooling condition; in winter heating, the target indoor temperature is generally higher than the indoor temperature. Therefore, in order to facilitate the determination of the first outdoor unit wind speed in the outdoor fan, the control flow of the present invention also determines the operation mode of the air conditioner in advance before determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature, wherein the operation mode includes a cooling mode and a heating mode.
Thus, when the operation mode is the refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
Or, in step S102, an absolute value of a temperature difference between the indoor temperature and the target indoor temperature may be directly calculated, and the outdoor fan may be determined and controlled to operate at the first outdoor unit wind speed according to the absolute value.
Specifically, in an optional embodiment, when the operation mode is the cooling mode, the determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature in step S102 mainly includes:
when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed;
when the first temperature difference value is smaller than a first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first external unit is a low wind speed;
when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first outer unit is zero.
In this embodiment, the first temperature difference threshold and the second temperature difference threshold are both preset threshold parameters of the air conditioner, preferably, the first temperature difference threshold is 1.5-2.5 ℃, and the second temperature difference threshold is-0.5 ℃.
For the outdoor fan of the air conditioner, the maximum wind speed upper limit is provided, for example, the maximum wind speed upper limit of the outdoor fan in one embodiment is the wind speed corresponding to the rotating speed of 1500r/min, the rotating speed of the outdoor fan can be adjusted between 0 and 1500r/min, thereby changing the wind speed of the outdoor fan, the invention divides the rotating speed of the outdoor fan into a plurality of wind speed intervals according to the rotating speed in advance, for example, 1000-1500 r/min is the wind speed interval corresponding to the high wind speed, 500-1000 r/min is the wind speed interval corresponding to the medium wind speed, and 0-500 r/min is the wind speed interval corresponding to the low wind speed, so that when the first temperature difference value meets the judgment condition of the certain preset threshold parameter, the wind speed of the outdoor fan can be adjusted to the corresponding rotating speed so as to control the actually achieved wind speed of the outdoor fan to be in a matched wind speed interval.
Or, in another embodiment, the outdoor fan adopts different gear settings to perform rotation speed control and wind speed adjustment, for example, the outdoor fan includes five gears 1, 2, 3, 4, and 5, where the rotation speed gear corresponding to the low wind speed in the gear 1, the rotation speed gear corresponding to the high wind speed in the gears 2 and 3, and the rotation speed gear corresponding to the high wind speed in the gears 4 and 5. Therefore, when the first temperature difference value meets the judgment condition of the certain preset threshold parameter, the wind speed of the outdoor fan can be adjusted to the corresponding gear, so that the actually achieved wind speed of the outdoor fan is controlled to be in a matched wind speed interval.
In another optional embodiment, when the operation mode is the heating mode, determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to a temperature difference between the indoor temperature and the target indoor temperature in step S102 includes:
when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed;
when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to the fourth temperature difference threshold value, the wind speed of the first outdoor unit is low wind speed;
when the second temperature difference value is smaller than a fourth temperature difference threshold value, the wind speed of the first external unit is zero; at this time, the outdoor fan stops rotating, the compressor also stops operating, and only the indoor fan operates at the set rotating speed.
In this embodiment, the third temperature difference threshold and the fourth temperature difference threshold are both preset threshold parameters of the air conditioner, preferably, the third temperature difference threshold is 1.5-2.5 ℃, and the fourth temperature difference threshold is-0.5 ℃.
The determination and control method of the air speed of the first external unit in the heating mode of the air conditioner may refer to the control flow in the cooling mode in the foregoing embodiment, which is not described herein again.
In the above embodiments, generally, the factors causing the internal pressure change of the air conditioning system mainly include the operating frequency of the compressor, the opening degree of the expansion valve, and the like, and the factors are determined by adaptive adjustment according to the target indoor temperature set by the user and the current indoor temperature during the operation of the air conditioner.
S103, acquiring the coil temperature of the air conditioner internal unit after a set time interval;
for the embodiment of the type of the household air conditioner, a temperature sensor for detecting the temperature of the coil is further arranged at the coil of the indoor unit of the air conditioner, and the temperature of the coil acquired in the step S103 is detected by the temperature sensor.
For the embodiment of the commercial air conditioner type, a temperature sensor for detecting the temperature of the coil corresponding to each indoor unit is respectively arranged at the coil of each indoor unit of the air conditioner, so that the air conditioner can obtain a coil temperature mean value through calculation processes such as weighted calculation and the like on the coil temperature detected by a plurality of indoor units, and the coil temperature mean value is taken as a temperature parameter for determining the wind speed of the second external unit in step S103.
Generally, after the air-conditioning outdoor fan operates at the first outdoor unit wind speed for the set time interval, the pressure condition in the air-conditioning system tends to be stable, and at this time, if the air-conditioning outdoor fan still operates at the first outdoor unit wind speed, the pressure condition is not matched with the current heat exchange requirement of the air conditioner. Therefore, the second outdoor unit wind speed of the outdoor fan is calculated and determined again according to the coil temperature of the indoor unit of the air conditioner, and the outdoor fan is adjusted from the first outdoor unit wind speed to the second outdoor unit wind speed, so that the wind speed of the outdoor fan can be matched with the pressure stable state under the current working condition, the extra power consumption of the air conditioner is reduced, and the overall operation performance of the air conditioner is improved.
S104, determining and controlling the outdoor fan to operate at the wind speed of a second external fan according to the temperature of the coil pipe;
specifically, in an optional embodiment, when the operation mode is the cooling mode, in step S104, the outdoor fan is determined and controlled to operate at the second outdoor fan wind speed according to the coil temperature, and the method mainly includes:
when the temperature of the coil pipe is greater than the first coil temperature threshold value, the wind speed of the second external machine is high wind speed;
when the temperature of the coil pipe is smaller than a second coil temperature threshold value, the wind speed of the second external machine is low wind speed;
and when the coil temperature is at the first coil temperature threshold and the second coil temperature threshold, executing step S105.
The first disc temperature threshold and the second disc temperature threshold are preset threshold parameters of the air conditioning system, and the first disc temperature threshold is larger than the second disc temperature threshold; preferably, the value range of the first disc temperature threshold is 11-15 ℃, and the value range of the second disc temperature threshold is 5-9 ℃.
The rotation speed or gear of the outdoor fan corresponding to the determined second outdoor unit wind speed may refer to the rotation speed or gear setting corresponding to the first outdoor unit wind speed in step S102 in the foregoing embodiment, which is not described herein again.
In another embodiment, when the operation mode is the heating mode, the determining and controlling the outdoor fan to operate at the second outdoor fan speed according to the coil temperature in step S104 mainly includes:
when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed;
when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed;
and when the coil temperature is at the third coil temperature threshold and the fourth coil temperature threshold, executing step S105.
The third disc temperature threshold and the fourth disc temperature threshold are preset threshold parameters of the air conditioning system, and the third disc temperature threshold is larger than the fourth disc temperature threshold; preferably, the value range of the third disc temperature threshold is 48-52 ℃, and the value range of the fourth disc temperature threshold is 40-44 ℃.
Similarly, the rotation speed or gear of the outdoor unit corresponding to the determined second outdoor unit wind speed may refer to the rotation speed or gear setting corresponding to the first outdoor unit wind speed in step S102 in the foregoing embodiment, which is not described herein again.
S105, acquiring the outdoor temperature of an outdoor area where the air conditioner is located;
in the multiple embodiments of the above-mentioned household air conditioner type or commercial air conditioner type of the present invention, the outdoor unit of the air conditioner is further provided with a temperature sensor for detecting the outdoor environment temperature, and step S105 is to obtain the outdoor environment temperature detected by the temperature sensor and use the outdoor environment temperature as the outdoor temperature of the step;
s106, determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature;
specifically, in an optional embodiment, when the operation mode is the cooling mode, in step S105, according to the outdoor temperature, the outdoor fan is determined and controlled to operate at the third outdoor unit wind speed, which mainly includes:
when the outdoor temperature is higher than a first outdoor temperature threshold value, the wind speed of the third outdoor unit is a high wind speed;
when the outdoor temperature is smaller than or equal to the first external temperature threshold and larger than or equal to a second external temperature threshold, the wind speed of the third external unit is unchanged at the current wind speed; in the present embodiment, that is, the third outer machine wind speed is consistent with the first outer machine wind speed determined in step S102;
when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external unit is low wind speed;
the first external temperature threshold and the second external temperature threshold are threshold parameters preset by the air conditioning system, and the first external temperature threshold is greater than the second external temperature threshold; preferably, the first external temperature threshold value ranges from 27.5 ℃ to 28.5 ℃, and the second external temperature threshold value ranges from 25.5 ℃ to 26.5 ℃.
The rotation speed or gear of the outdoor fan corresponding to the determined third outdoor unit wind speed may refer to the rotation speed or gear setting corresponding to the first outdoor unit wind speed in step S102 in the foregoing embodiment, which is not described herein again.
In another embodiment, when the operation mode is the heating mode, the determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature in step S106 mainly includes:
when the outdoor temperature is higher than a third external temperature threshold value, the wind speed of a third external machine is a low wind speed;
when the outdoor temperature is less than or equal to the third external temperature threshold and greater than or equal to the fourth external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed; in the present embodiment, that is, the third outer machine wind speed is consistent with the first outer machine wind speed determined in step S102;
when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external machine is the high wind speed;
the third external temperature threshold and the fourth external temperature threshold are threshold parameters preset by the air conditioning system, and the third external temperature threshold is greater than the fourth external temperature threshold; preferably, the value range of the third external temperature threshold is 14.5-15.5 ℃, and the value range of the fourth external temperature threshold is 12.5-13.5 ℃.
The rotation speed or gear of the outdoor fan corresponding to the determined third outdoor unit wind speed may refer to the rotation speed or gear setting corresponding to the first outdoor unit wind speed in step S102 in the foregoing embodiment, which is not described herein again.
In this embodiment, the set time interval is not less than 3 minutes, namely, the time length that the air conditioner outdoor fan needs to operate the first outer machine wind speed is not less than 3 minutes, so, the time of pressure buffering can be provided for the air conditioning system, and the stability of air conditioner operation is guaranteed.
Fig. 2 is a flowchart illustrating a control method according to an exemplary embodiment of the present invention, and in the application scenario illustrated in fig. 2, the rotation speed adjustment of the outdoor fan when the household air conditioner is started is specifically explained.
S201, starting an air conditioner to operate;
s202, detecting the indoor temperature Tn;
in this embodiment, a temperature sensor is disposed in the indoor unit, and the temperature sensor can be used to detect the ambient temperature of the indoor area where the indoor unit is located, that is, the indoor temperature in step S202 can be detected by the temperature sensor;
s203, judging the operation mode of the air conditioner, if the operation mode is a cooling mode, executing a step S204, and if the operation mode is a heating mode, executing a step S223;
in another embodiment, the determining process of the air conditioner operation mode in step S203 may also be performed after the air conditioner is started to operate, and then the step of detecting the indoor temperature in step S202 is performed, which is not limited in this disclosure;
s204, acquiring a target indoor temperature input by a user;
s205, calculating and determining an absolute value of a temperature difference value between the indoor temperature and the target indoor temperature;
s206, judging whether Tn is larger than 2 ℃, if yes, executing a step S208, and if not, executing a step S207;
in step S206, 2 ℃ is a first temperature difference threshold;
s207, judging whether Tn is less than or equal to 2 ℃ and greater than 0 ℃, if yes, executing a step S209, and if not, executing a step S210;
in step S207, 2 ℃ is the first temperature difference threshold, and 0 ℃ is the second temperature difference threshold;
s208, the outdoor fan runs at a high wind speed serving as a first outdoor unit wind speed, timing is carried out, and step S211 is executed;
s209, the outdoor fan operates at a low wind speed as a first outdoor unit wind speed, and performs timing and step S211;
s210, stopping the outdoor fan, stopping the compressor, and operating the indoor fan at a set rotating speed;
s211, judging whether the timing duration is greater than 3min, if so, executing a step S212, and if not, still maintaining the operation of the air conditioner at the first outdoor unit wind speed;
in step S211, 3min is a set time interval;
s212, detecting the temperature Tnp of the indoor coil;
in this embodiment, a temperature sensor is further disposed in the indoor unit, and the temperature sensor can be used to detect the temperature of the coil of the indoor unit, that is, the coil temperature in step S212 can be detected by the temperature sensor;
s213, judging whether Tnp is greater than or equal to 15 ℃, if yes, executing a step S215, and if no, executing a step S214;
in step S213, 15 ℃ is the first disc temperature threshold;
s214, judging whether Tnp is less than 15 ℃ and greater than or equal to 5 ℃, if yes, executing a step S217, and if no, executing a step S216;
in step S214, 15 ℃ is the first disc temperature threshold, and 5 ℃ is the second disc temperature threshold;
s215, the outdoor fan operates at a high wind speed as a second external fan wind speed, and the process is finished;
s216, the outdoor fan operates by taking the low wind speed as the wind speed of the second external fan, and the process is ended;
s217, acquiring the outdoor temperature Tw of the outdoor area where the air conditioner is located;
in this embodiment, a temperature sensor is disposed in the outdoor unit, and the temperature sensor can be used to detect the ambient temperature of the outdoor area where the outdoor unit of the air conditioner is located, that is, the outdoor temperature in step S218 can be detected by the temperature sensor;
s218, judging whether Tw is greater than or equal to 28 ℃, if yes, executing a step S220, and if not, executing a step S219;
in step S218, 28 ℃ is the first external temperature threshold;
s219, judging whether Tw is less than 28 ℃ and greater than or equal to 26 ℃, if yes, pointing to the step S221, and if not, executing the step S222;
in step S219, 28 ℃ is the first external temperature threshold value, and 26 ℃ is the second external temperature threshold value;
s220, the outdoor fan operates at a high wind speed as a third outdoor unit wind speed, and the process is finished;
s221, the outdoor fan operates by taking the wind speed of the first outdoor unit as the wind speed of a third outdoor unit, and the process is finished;
s222, the outdoor fan operates at a low wind speed as a third outdoor unit wind speed, and the process is finished;
s223, acquiring target indoor temperature input by a user;
s224, calculating and determining an absolute value of a temperature difference value between the indoor temperature and the target indoor temperature;
s225, judging whether Tn is larger than 2 ℃, if yes, executing a step S227, and if not, executing a step S226;
in step S225, 2 ℃ is the third temperature difference threshold;
s226, judging whether Tn is less than or equal to 2 ℃ and greater than 0 ℃, if yes, executing step S228, and if no, executing step S229;
in step S226, 2 ℃ is the third temperature difference threshold, and 0 ℃ is the fourth temperature difference threshold;
s227, the outdoor fan runs at a high wind speed serving as a first outdoor unit wind speed, timing is carried out, and step S230 is executed;
s228, the outdoor fan runs at a low wind speed serving as a first outdoor unit wind speed, timing is carried out, and step S230 is executed;
s229, stopping the outdoor fan, stopping the compressor, and operating the indoor fan at a set rotating speed;
s230, judging whether the timing duration is greater than 3min, if so, executing a step S226, and if not, still maintaining the operation of the air conditioner at the wind speed of the first outdoor unit;
in step S230, 3min is a set time interval;
s231, detecting the temperature Tnp of the indoor coil;
in this embodiment, a temperature sensor is further disposed in the indoor unit, and the temperature sensor can be used to detect the temperature of the coil of the indoor unit, that is, the coil temperature in step S225 can be detected by the temperature sensor;
s232, judging whether Tnp is greater than or equal to 53 ℃, if yes, executing step S234, and if no, executing step S233;
in step S232, 53 ℃ is the third disc temperature threshold;
s233, judging whether Tnp is less than 53 ℃ and more than or equal to 40 ℃, if yes, executing step S236, and if no, executing step S235;
in step S234, 53 ℃ is the third disc temperature threshold, and 40 ℃ is the fourth disc temperature threshold;
s234, the outdoor fan operates at a high wind speed as the wind speed of the second external fan, and the process is finished;
and S235, the outdoor fan operates by taking the low wind speed as the wind speed of the second external fan, and the process is ended.
S236, acquiring the outdoor temperature Tw of the outdoor area where the air conditioner is located;
in this embodiment, a temperature sensor is disposed in the outdoor unit, and the temperature sensor can be used to detect the ambient temperature of the outdoor area where the outdoor unit of the air conditioner is located, that is, the outdoor temperature in step S218 can be detected by the temperature sensor;
s237, judging whether Tw is larger than or equal to 15 ℃, if yes, executing a step S239, and if not, executing a step S238;
in step S237, 15 ℃ is the third external temperature threshold;
s238, judging whether Tw is less than 15 ℃ and more than or equal to 13 ℃, if yes, pointing to a step S240, and if no, executing the step S241;
in step S238, 15 ℃ is the third external temperature threshold, and 13 ℃ is the fourth external temperature threshold;
s239, the outdoor fan operates at a high wind speed as a third outdoor unit wind speed, and the process is ended;
s240, the outdoor fan operates by taking the wind speed of the first outdoor unit as the wind speed of a third outdoor unit, and the process is finished;
and S241, the outdoor fan operates at a low wind speed as a third outdoor unit wind speed, and the process is ended.
Fig. 3 is a block diagram showing the structure of the control device of the present invention according to an exemplary embodiment.
As shown in fig. 3, the present invention provides a control device for a rotational speed of an outdoor fan of an air conditioner, which can be used for controlling and adjusting the rotational speed of the outdoor fan of the air conditioner by applying the control method flow in the above embodiment, specifically, the control device includes:
a first obtaining module 310, configured to obtain an indoor temperature of an indoor area where an air conditioner is located;
in the embodiment of the present invention, the control device is applied to an air conditioner, the air conditioner is provided with a temperature sensor for detecting an indoor environment temperature, and the first obtaining module 310 obtains the indoor environment temperature detected by the temperature sensor and uses the indoor environment temperature as an indoor temperature of an indoor area where the air conditioner is located;
the first determining module 320 is configured to determine and control the outdoor fan to operate at the first outdoor unit wind speed according to a temperature difference between the indoor temperature and the target indoor temperature;
a second obtaining module 330, configured to obtain a coil temperature of an air conditioner internal unit after a set time interval;
in the embodiment of the present invention, the air conditioner is further provided with a temperature sensor for detecting the temperature of the coil of the air conditioner internal unit, and the second obtaining module 330 obtains the temperature of the coil detected by the temperature sensor;
the second determining module 340 is configured to determine and control the outdoor fan to operate at the second outdoor fan speed according to the coil temperature;
a third obtaining module 350, configured to obtain an outdoor temperature of an outdoor area where the air conditioner is located;
in the embodiment of the present invention, the air conditioner is further provided with a temperature sensor for detecting the outdoor environment temperature of the air conditioner, and the third obtaining module 350 obtains the outdoor temperature detected by the temperature sensor;
and a fourth determining module 360, configured to determine and control the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
The control device of the invention accurately controls the air speed of the outdoor unit in two states aiming at the unstable state and the stable state when the air conditioner is started, reduces the influence of the instantaneous pressure difference of the system on the air conditioning system and improves the stability of the operation of the system.
Fig. 4 is a block diagram of the structure of the control device of the present invention shown in an exemplary embodiment.
As shown in fig. 4, the present invention provides a control device for a rotational speed of an outdoor fan of an air conditioner, which can be used to control and adjust the rotational speed of the outdoor fan of the air conditioner by applying the control method flow in the foregoing embodiment, specifically, the control device mainly includes a first obtaining module 410, a first determining module 420, a second obtaining module 430, a second determining module 440, a third obtaining module 450, and a third determining module 460.
In the present embodiment, the first obtaining module 410 is used for obtaining the indoor temperature of the indoor area where the air conditioner is located.
In this embodiment, the control device further includes a fourth determining module 470, where the fourth determining module 470 is configured to determine an operation mode of the air conditioner, where the operation mode includes a cooling mode and a heating mode; when the operation mode is a refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
In the present embodiment, the first determination module 420 includes a first determination submodule 421 and a second determination submodule 422.
Wherein, when the operation mode is the cooling mode, the first determining submodule 421 is configured to:
when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed;
when the first temperature difference value is smaller than a first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first external unit is a low wind speed;
when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first outer unit is zero.
When the operation mode is the heating mode, the second determination sub-module 422 is configured to:
when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed;
when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to the fourth temperature difference threshold value, the wind speed of the first outdoor unit is low wind speed;
and when the second temperature difference value is smaller than the fourth temperature difference threshold value, the wind speed of the first outer unit is zero.
Preferably, the fourth determining module 470 determines the operation mode of the air conditioner before the first determining submodule 421 or the second determining submodule 422 determines and controls the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature.
In the present embodiment, the second determination module 440 includes a third determination submodule 441 and a fourth determination submodule 442.
Wherein, when the operation mode is the cooling mode, the third determining submodule 441 is configured to:
when the temperature of the coil pipe is greater than the first coil temperature threshold value, the wind speed of the second external machine is high wind speed;
and when the temperature of the coil pipe is less than the second coil temperature threshold value, the wind speed of the second external machine is the low wind speed.
The third obtaining module 450 is configured to obtain the outdoor temperature of the outdoor area where the air conditioner is located when the coil temperature is less than or equal to the first coil temperature threshold and greater than or equal to the second coil temperature threshold.
When the operation mode is the heating mode, the fourth determination sub-module 442 is configured to:
when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed;
when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed;
the third obtaining module 450 is further configured to obtain the outdoor temperature of the outdoor area where the air conditioner is located when the coil temperature is less than or equal to the third coil temperature threshold and greater than or equal to the fourth coil temperature threshold.
In the present embodiment, the third determination module 460 includes a fifth determination submodule 461 and a sixth determination submodule 462.
Wherein, when the operation mode is the cooling mode, the fifth determining sub-module 461 is configured to:
when the outdoor temperature is higher than the first external temperature threshold value, the wind speed of the third external machine is high wind speed;
when the outdoor temperature is less than or equal to the first external temperature threshold and greater than or equal to the second external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed;
and when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external machine is low wind speed.
When the operation mode is the heating mode, the sixth determination submodule 462 is configured to:
when the outdoor temperature is higher than a third external temperature threshold value, the wind speed of a third external machine is a low wind speed;
when the outdoor temperature is less than or equal to the third external temperature threshold and greater than or equal to the fourth external temperature threshold, the wind speed of the third external machine is unchanged at the current wind speed;
and when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external machine is the high wind speed.
In the present embodiment, the time interval is set to not less than 3 minutes.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A control method of an outdoor fan of an air conditioner is characterized by comprising the following steps:
acquiring the indoor temperature of an indoor area where an air conditioner is located;
determining and controlling the outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature;
acquiring the temperature of a coil of an air conditioner indoor unit after a set time interval;
determining and controlling the outdoor fan to operate at a second outdoor fan speed according to the temperature of the coil pipe;
when the operation mode is the refrigeration mode, the outdoor fan is determined and controlled to operate at the second outdoor fan wind speed according to the temperature of the coil, and the method comprises the following steps: when the temperature of the coil pipe is larger than a first coil temperature threshold value, the wind speed of the second external machine is a high wind speed; when the temperature of the coil pipe is smaller than a second coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than or equal to the first coil temperature threshold and larger than or equal to the second coil temperature threshold, acquiring the outdoor temperature of an outdoor area where an air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature;
when the operation mode is the heating mode, determining and controlling the outdoor fan to operate at a second outdoor fan wind speed according to the coil temperature, wherein the operation mode comprises the following steps: when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed; and when the temperature of the coil pipe is smaller than or equal to the third coil temperature threshold and is larger than or equal to the fourth coil temperature threshold, acquiring the outdoor temperature of an outdoor area where the air conditioner is located, and determining and controlling the outdoor fan to operate at the third outdoor unit wind speed according to the outdoor temperature.
2. The control method according to claim 1, wherein before the determining and controlling the outdoor fan to operate at the first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature, the control method further comprises: determining an operation mode of the air conditioner, wherein the operation mode comprises a cooling mode and a heating mode;
when the operation mode is the refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
3. The control method according to claim 2,
when the operation mode is the refrigeration mode, determining and controlling the outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature, and the method comprises the following steps: when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the first temperature difference value is smaller than the first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first outdoor unit is a low wind speed; when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first external unit is zero;
when the operation mode is the heating mode, determining and controlling the outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and the target indoor temperature, including: when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to a fourth temperature difference threshold value, the wind speed of the first outdoor unit is a low wind speed; and when the second temperature difference value is smaller than the fourth temperature difference threshold value, the wind speed of the first outer unit is zero.
4. The control method according to claim 1,
when the operation mode is the refrigeration mode, determining and controlling the outdoor fan to operate at a third outdoor unit wind speed according to the outdoor temperature, wherein the method comprises the following steps: when the outdoor temperature is higher than a first outdoor temperature threshold value, the wind speed of the third outdoor unit is a high wind speed; when the outdoor temperature is smaller than or equal to the first external temperature threshold and larger than or equal to a second external temperature threshold, the wind speed of the third external unit is unchanged at the current wind speed; when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external unit is low wind speed;
when the operation mode is the heating mode, determining and controlling the outdoor fan to operate at a third outdoor unit wind speed according to the outdoor temperature, wherein the method comprises the following steps: when the outdoor temperature is higher than a third outdoor temperature threshold value, the wind speed of the third outdoor unit is a low wind speed; when the outdoor temperature is smaller than or equal to the three external temperature threshold values and larger than or equal to a fourth external temperature threshold value, the wind speed of the third external machine is unchanged from the current wind speed; and when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external unit is a high wind speed.
5. A control device for an outdoor fan of an air conditioner, comprising:
the first acquisition module is used for acquiring the indoor temperature of an indoor area where the air conditioner is located;
the first determining module is used for determining and controlling the outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference value between the indoor temperature and the target indoor temperature;
the second acquisition module is used for acquiring the coil temperature of the air conditioner indoor unit after a set time interval;
the second determining module is used for determining and controlling the outdoor fan to operate at a second outdoor fan speed according to the temperature of the coil pipe;
the second determination module comprises a third determination submodule and a fourth determination submodule, and when the operation mode is the cooling mode, the third determination submodule is used for: when the temperature of the coil pipe is larger than a first coil temperature threshold value, the wind speed of the second external machine is a high wind speed; when the temperature of the coil pipe is smaller than a second coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than or equal to the first coil temperature threshold value and larger than or equal to the second coil temperature threshold value, executing a third acquisition module;
when the operation mode is the heating mode, the fourth determining submodule is configured to: when the temperature of the coil pipe is greater than a third coil temperature threshold value, the wind speed of the second external machine is a low wind speed; when the temperature of the coil pipe is smaller than a fourth coil temperature threshold value, the wind speed of the second external machine is a high wind speed; when the temperature of the coil pipe is smaller than or equal to the third coil temperature threshold value and is larger than or equal to the fourth coil temperature threshold value, executing a third acquisition module;
the third acquisition module is used for acquiring the outdoor temperature of the outdoor area where the air conditioner is located;
and the third determining module is used for determining and controlling the outdoor fan to operate at a third outdoor unit wind speed according to the outdoor temperature.
6. The control apparatus of claim 5, further comprising a fourth determination module configured to: determining an operation mode of the air conditioner before the first determining module determines and controls the outdoor fan to operate at a first outdoor unit wind speed according to the temperature difference between the indoor temperature and a target indoor temperature, wherein the operation mode comprises a cooling mode and a heating mode;
when the operation mode is the refrigeration mode, the temperature difference is a first temperature difference obtained by subtracting the target indoor temperature from the indoor temperature; and when the operation mode is the heating mode, the temperature difference is a second temperature difference obtained by subtracting the indoor temperature from the target indoor temperature.
7. The control apparatus of claim 6, wherein the first determination module includes a first determination submodule and a second determination submodule, wherein,
when the operation mode is the cooling mode, the first determination submodule is configured to: when the first temperature difference value is larger than a first temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the first temperature difference value is smaller than the first temperature difference threshold value and larger than or equal to a second temperature difference threshold value, the wind speed of the first outdoor unit is a low wind speed; when the first temperature difference value is smaller than the second temperature difference threshold value, the wind speed of the first external unit is zero;
when the operation mode is the heating mode, the second determining submodule is configured to: when the second temperature difference value is larger than a third temperature difference threshold value, the wind speed of the first external unit is a high wind speed; when the second temperature difference value is smaller than the third temperature difference threshold value and larger than or equal to a fourth temperature difference threshold value, the wind speed of the first outdoor unit is a low wind speed; and when the second temperature difference value is smaller than the fourth temperature difference threshold value, the wind speed of the first outer unit is zero.
8. The control apparatus of claim 5, wherein the third determination module includes a fifth determination submodule and a sixth determination submodule, wherein,
when the operation mode is the cooling mode, the fifth determination submodule is configured to: when the outdoor temperature is higher than a first outdoor temperature threshold value, the wind speed of the third outdoor unit is a high wind speed; when the outdoor temperature is smaller than or equal to the first external temperature threshold and larger than or equal to a second external temperature threshold, the wind speed of the third external unit is unchanged at the current wind speed; when the outdoor temperature is lower than the second external temperature threshold value, the wind speed of the third external unit is low wind speed;
when the operation mode is the heating mode, the sixth determining submodule is configured to: when the outdoor temperature is higher than a third outdoor temperature threshold value, the wind speed of the third outdoor unit is a low wind speed; when the outdoor temperature is smaller than or equal to the three external temperature threshold values and larger than or equal to a fourth external temperature threshold value, the wind speed of the third external machine is unchanged from the current wind speed; and when the outdoor temperature is lower than the fourth external temperature threshold, the wind speed of the third external unit is a high wind speed.
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| CN109373538B (en) * | 2018-11-05 | 2021-01-26 | 奥克斯空调股份有限公司 | Outdoor fan control method and device and air conditioner |
| CN110030682A (en) * | 2019-03-18 | 2019-07-19 | 青岛海尔空调器有限总公司 | Air conditioning control method, control device and air-conditioning |
| CN110454938B (en) * | 2019-08-05 | 2022-02-25 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN115247869A (en) * | 2021-04-28 | 2022-10-28 | 芜湖美智空调设备有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN113970162B (en) * | 2021-11-30 | 2023-05-02 | 宁波奥克斯电气股份有限公司 | Control method of mobile air conditioner and mobile air conditioner |
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Effective date of registration: 20201103 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |