CN112728741B - Control method and device of air conditioner fan and air conditioner - Google Patents
Control method and device of air conditioner fan and air conditioner Download PDFInfo
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- CN112728741B CN112728741B CN202011611822.5A CN202011611822A CN112728741B CN 112728741 B CN112728741 B CN 112728741B CN 202011611822 A CN202011611822 A CN 202011611822A CN 112728741 B CN112728741 B CN 112728741B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention provides a control method and a device of an air conditioner fan and an air conditioner, and relates to the technical field of air conditioners, wherein the control method of the air conditioner fan comprises the following two steps: the method comprises the steps of acquiring the running current of the air conditioner fan in real time, and controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is larger than a first preset current. The control device of the air conditioner fan comprises an acquisition module and a control module which are respectively used for executing the two steps. The air conditioner comprises an air conditioner fan and a controller which are connected in a communication mode, and the controller is configured to execute the control method of the air conditioner fan. The air conditioner and the control method and the control device of the air conditioner fan can monitor the running current of the air conditioner fan in real time, and control the air conditioner fan to reduce the rotating speed when the running current exceeds the first preset current, so that the running current of the air conditioner fan is reduced, the failure probability of the air conditioner fan is further reduced, and the influence on the service life of the air conditioner fan is reduced.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a control method of an air conditioner fan, a control device of the air conditioner fan and an air conditioner.
Background
An air conditioner is one of common electric appliances in modern society, and generally comprises components such as a heat exchanger, a fan, a water pump, a pipeline and the like. The fan is mainly used for accelerating the air flowing speed and realizing the conversion of cold air and hot air.
When the fan of the air conditioner runs at the highest rotating speed, the current is large, if the fan runs at the highest rotating speed all the time, the service life of the fan is shortened, and meanwhile, the fan is easy to break down.
Disclosure of Invention
The invention solves the problems that the service life of the existing air-conditioning fan is shortened and the fault is easy to occur due to the long-time operation at the highest rotating speed.
In order to solve the above-mentioned problems,
in a first aspect, the present invention provides a method for controlling an air conditioner fan, including: acquiring the running current of an air conditioner fan in real time; and controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is greater than the first preset current.
The control method of the air conditioner fan monitors the operation load and the motor temperature of the air conditioner fan by monitoring the operation current of the air conditioner fan in real time, when the operation current exceeds a certain threshold value (namely, a first preset current), the operation load and the motor temperature of the air conditioner fan are over high (the operation load and the motor temperature of the air conditioner fan are positively correlated with the operation current), the service life and the working stability of the air conditioner fan can be seriously influenced, at the moment, the air conditioner fan is controlled to reduce the rotating speed, so that the operation current of the air conditioner fan is reduced, the operation load of the air conditioner fan is further reduced, the motor temperature of the air conditioner fan is reduced, the service life of the air conditioner fan is prevented from being influenced, the failure probability of the air conditioner fan is reduced, and the working stability of the air conditioner fan is improved.
In an optional embodiment, the step of obtaining the operating current of the air conditioner fan further comprises: and controlling the air conditioner fan to start and operate for a first preset time.
In an alternative embodiment, the first predetermined time is 160s-200 s.
In an alternative embodiment, the step of obtaining the operation current of the air conditioner fan comprises the following steps: a plurality of actual currents in a current sampling period are obtained, and the average value of the actual currents is calculated to be used as the running current.
The operating current of the air conditioner fan has instability due to the influence of some uncontrollable factors. If only a certain actual current within the current sampling period is collected as the operating current, there may be instances of inaccuracy. The average value of a plurality of actual currents in one current sampling period can reflect the running condition of the air conditioner fan more accurately and truly, and the running condition is used as the running current to control the air conditioner fan, so that unnecessary speed reduction operation can be avoided, and the air conditioner fan can be effectively protected in time.
In an optional embodiment, the step of controlling the air conditioner fan to reduce the rotation speed further comprises the following steps:
and under the condition that the running current is smaller than the difference between the first preset current and the first correction current, controlling the air conditioner fan to stop reducing the rotating speed, running at the preset rotating speed, and simultaneously recording the running current at the moment as a second preset current, wherein the preset rotating speed is smaller than or equal to the rotating speed of the air conditioner fan corresponding to the second preset current.
When the rotating speed of the air conditioner fan is reduced, the running current of the air conditioner fan is reduced, when the running current is reduced to a certain threshold value, the running load of the air conditioner fan and the temperature of the motor are reduced to a safe range, the service life and the working stability of the air conditioner fan cannot be greatly influenced basically, and the rotating speed of the air conditioner fan cannot be reduced any more at the moment, so that the air conditioner can keep running.
In an alternative embodiment, the first correction current is 80mA-120 mA.
In an optional embodiment, when the operation current is smaller than the difference between the second preset current and the second correction current and the operation time of the air-conditioning fan after the operation current is larger than the first preset current is larger than a second preset time, the limitation on the rotation speed of the air-conditioning fan is removed, so that the rotation speed of the air-conditioning fan can exceed the preset rotation speed.
After the operating current changes to a certain threshold value and the air conditioner fan reduces the rotating speed for a period of time, the rotating speed of the air conditioner fan can be increased to restore the original rotating speed, so that the operating effect of the air conditioner is guaranteed, and the user experience is improved.
In an alternative embodiment, the second correction current is 180mA-220mA, and the second preset time is 8-12 min.
In an alternative embodiment, the air conditioner fan is decelerated at a preset speed, the preset speed being 40r/min to 60 r/min.
In an alternative embodiment, the air conditioner fan is a direct current fan of an air conditioner external unit.
In an alternative embodiment, the operating current is a peak current.
In an alternative embodiment, the first preset current is a current for reliably operating the air conditioner fan at the highest rotating speed in different environments.
In a second aspect, the present invention provides a control device for an air conditioner blower, including an obtaining module and a control module;
the acquisition module is used for acquiring the running current of the air conditioner fan in real time;
the control module is used for controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is larger than the first preset current.
This controlling means of air conditioner fan can monitor the operational load and the motor temperature of air conditioner fan through the operating current of real time monitoring air conditioner fan to control air conditioner fan underspin when the operating current surpasss first predetermined current, thereby reduce the operating current of air conditioner fan, and then reduce the operational load and the motor temperature of air conditioner fan, avoid influencing air conditioner fan's life, reduce the probability that air conditioner fan broke down, improve air conditioner fan's job stabilization nature.
In a third aspect, the invention provides an air conditioner, which includes a controller and an air conditioner fan that are in communication connection, where the controller is configured to obtain an operating current of the air conditioner fan in real time, and control the air conditioner fan to reduce a rotation speed when the operating current is greater than a first preset current.
The air conditioner can monitor the running load and the motor temperature of the air conditioner fan by monitoring the running current of the air conditioner fan in real time, and control the air conditioner fan to reduce the rotating speed when the running current exceeds a first preset current, so that the running current of the air conditioner fan is reduced, the running load and the motor temperature of the air conditioner fan are reduced, and the air conditioner has the characteristics of long service life and stable and reliable work.
Drawings
Fig. 1 is a block diagram illustrating a structure of an air conditioner according to a first embodiment of the present invention;
fig. 2 is a first flowchart of a control method of an air conditioner fan according to a second embodiment of the present invention;
fig. 3 is a second flowchart of a control method of an air conditioner fan according to a second embodiment of the present invention;
fig. 4 is a block diagram of a control device of an air conditioner blower according to a third embodiment of the present invention.
Description of reference numerals:
100-an air conditioner; 110-an air-conditioning fan; 120-a controller; 200-control device of air-conditioning fan; 210-an acquisition module; 220-a judgment module; 230-control module.
Detailed Description
The air conditioner fan is one of the main parts of the air conditioner, and plays a role in accelerating the air flow speed and realizing the conversion of cold air and hot air in the operation process of the air conditioner. When the air conditioner fan operates at the highest rotating speed, the operating current is large, if the air conditioner fan is used for a long time, the operating load of the air conditioner fan is large under the condition that the ventilation around the air conditioner is poor, the temperature of the motor can be rapidly increased, the air conditioner fan is prone to failure, and the service life is shortened.
In view of the above situation, the present invention provides an air conditioner and a control method and device for a matched air conditioner fan, which provides a set of safety mechanism for the operation of the air conditioner fan, and the safety mechanism enables the air conditioner fan to reduce the rotation speed under the condition that the operation current exceeds a certain threshold value, so that the operation current is reduced, the operation load and the motor temperature of the air conditioner fan are further reduced, the probability of the air conditioner fan failing is reduced as much as possible, and the service life of the air conditioner fan is ensured not to be affected.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment:
referring to fig. 1, an air conditioner 100 according to an embodiment of the present invention includes a controller 120 and an air conditioner fan 110, which are communicatively connected, where the controller 120 is configured to obtain an operating current I0 of the air conditioner fan 110 in real time, and control the air conditioner fan 110 to reduce a rotation speed when the operating current I0 is greater than a first preset current I1.
The controller 120 includes a memory, a communication interface, a processor, and a bus, wherein the memory, the communication interface, and the processor are connected via the bus, and the processor is used to execute an executable module stored in the memory, such as a computer program, and the code of the computer program may be in a source code form, an object code form, an executable file or some intermediate form.
The Memory may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-V1) such as at least one disk Memory. Communication with the air conditioning fan 110 is achieved through at least one communication interface (which may be wired or wireless). The bus may be an ISA bus, PCI bus, EISA bus, or the like.
The memory is used to store a program, such as the control device 200 of the air conditioner blower shown in fig. 4. The controller 120 includes at least one software function module that can be stored in a memory in the form of software or firmware. After receiving the execution instruction, the processor executes a program to implement the control method of the air conditioner fan shown in fig. 2 or fig. 3, for example.
The air conditioner 100 can monitor the operation load and the motor temperature of the air conditioner fan 110 by monitoring the operation current I0 of the air conditioner fan 110 in real time, and control the air conditioner fan 110 to reduce the rotating speed when the operation current I0 exceeds the first preset current I1, so as to reduce the operation current I0 of the air conditioner fan 110, further reduce the operation load and the motor temperature of the air conditioner fan 110, so as to reduce the probability of faults in the operation process of the air conditioner fan 110 as much as possible, and reduce the influence on the service life of the air conditioner fan 110.
In this embodiment, the air conditioner 100 is an air conditioner external unit, and accordingly, the air conditioner fan 110 is a direct current fan of the air conditioner external unit. In other embodiments, the air conditioner 100 may also be an air conditioner internal unit, and accordingly, the air conditioner fan 110 may also be a direct current fan or an alternating current fan of the air conditioner internal unit.
Second embodiment:
referring to fig. 2, an embodiment of the present invention provides a method for controlling an air conditioner fan, which can be used to control the operation of the air conditioner fan 110 of the air conditioner 100 provided in the first embodiment.
In detail, the control method of the air conditioner fan comprises the following steps:
step S100: the operation current I0 of the air conditioner fan 110 is obtained in real time.
The step S100 (that is, obtaining the operating current I0 of the air conditioner fan 110 in real time) specifically includes: the actual current of the air conditioner fan 110 is sampled and filtered, a plurality of actual currents in a current sampling period are obtained, and the average value of the actual currents is calculated to be used as the running current I0, so that the accuracy of the running current I0 is improved. For example, assuming that the current sampling period is 1S, 32 samples (the time interval of each sample may be the same or different) may be performed within 1S to obtain 32 actual currents, and then an average value of the 32 actual currents is obtained as the operating current I0.
The operating current I0 of the air conditioner fan 110 has instability due to some uncontrollable factors. If only a certain actual current during the current sampling period is collected as the operating current I0, there may be inaccuracy. The average value of a plurality of actual currents in one current sampling period can more accurately and truly reflect the operation condition of the air conditioner fan 110, and the average value is used as the operation current I0 to control the air conditioner fan 110, so that on one hand, unnecessary speed reduction operation can be avoided, and on the other hand, the air conditioner fan 110 can be effectively protected in time.
In this embodiment, the operating current I0 is a peak current. In other embodiments, the operating current I0 may be a significant value current.
After step S100 is executed and the operating current I0 of the air conditioner fan 110 is obtained, step S200 is executed: it is determined whether the operating current I0 is greater than the first preset current I1.
The value of the first preset current I1 can be determined by related personnel according to experience and experiments, and the principle is that the air conditioner fan 110 can reliably operate at the highest rotating speed V0 in different environments. For example, a specification of the air conditioner fan 110 may be queried to obtain the maximum rotation speed V0 of the air conditioner fan 110, and then a current value of the air conditioner fan 110, which is reliably and stably operated at the maximum rotation speed V0, is tested under different loads and environments, and then the current value is used as a value of the first preset current I1.
And if the operation current I0 is less than or equal to the first preset current I1 (i.e. I0 is less than or equal to I1), controlling the air conditioner fan 110 to normally operate.
If the operation current I0 is greater than the first preset current I1 (i.e., I0> I1), step S300 is performed: the air conditioner fan 110 is controlled to reduce the rotation speed. Wherein, the air-conditioning fan 110 reduces the rotating speed at a preset speed, and the preset speed is 40r/min-60 r/min. In this embodiment, the predetermined speed is 50 r/min. In other embodiments, the predetermined speed may be 40r/min, 45r/min, 55r/min, or 60 r/min.
The control method of the air conditioner fan monitors the load and the temperature of the air conditioner fan 110 by monitoring the running current I0 of the air conditioner fan 110 in real time, when the running current I0 exceeds a certain threshold (namely, the first preset current I1), it is indicated that the load and the temperature of the air conditioner fan 110 are too high (the running load and the motor temperature of the air conditioner fan 110 are both positively correlated with the running current I0), which may seriously affect the service life and the working stability of the air conditioner fan 110, at this time, the air conditioner fan 110 is controlled to reduce the rotating speed, so that the running current I0 of the air conditioner fan 110 is reduced, thereby reducing the running load of the air conditioner fan 110, reducing the motor temperature of the air conditioner fan 110, avoiding affecting the service life of the air conditioner fan 110, reducing the probability of the air conditioner fan 110 having a fault, and improving the working stability of the air conditioner fan 110.
As the air conditioner fan 110 is just started, the operating current I0 is generally larger, so as to avoid unnecessary speed reduction of the air conditioner fan 110, referring to fig. 3, the method for controlling the air conditioner fan further includes step S010 before step S100 (i.e. obtaining the operating current I0 of the air conditioner fan 110): the air conditioner fan 110 is controlled to be started and operated for a first preset time T1.
The first preset time T1 is determined according to the actual condition of the air conditioner fan 110, and may generally be 160S to 200S, and in this embodiment, the first preset time T1 is 180S. In other embodiments, the first preset time T1 may also be 160S, 165S, 170S, 175S, 185S, 190S, 195S, or 200S. The control method of the air conditioner fan obtains the running current I0 after the air conditioner fan 110 is started to run for a certain time, the running current I0 at the moment can better reflect the actual running load and the motor temperature of the air conditioner fan 110, the air conditioner fan 110 is controlled according to the running current I0 at the moment, unnecessary speed reduction of the air conditioner fan 110 can be avoided, and the user experience of the air conditioner 100 is guaranteed.
After the air conditioner fan 110 reduces the rotation speed, the operation current I0 of the air conditioner fan 110 is reduced accordingly, when the operation current I0 of the air conditioner fan 110 is reduced to a certain degree, the air conditioner fan 110 is already protected, and at this time, in order to avoid seriously affecting the user experience of the air conditioner 100 if the air conditioner fan 110 continues to reduce the rotation speed, please refer to fig. 3 again, the method for controlling an air conditioner fan further includes after step S300 (i.e. controlling the air conditioner fan 110 to reduce the rotation speed):
in step S400, it is determined whether the operation current I0 is smaller than the difference between the first predetermined current I1 and the first correction current I3. The first correction current I3 can be determined according to actual conditions, and is generally 80mA to 120 mA. In this embodiment, the first correction current I3 is 100 mA. In other embodiments, the first correction current I3 may also be 80mA, 85mA, 90mA, 95mA, 105mA, 110mA, 115mA, or 120 mA.
If the operation current I0 is greater than or equal to the difference between the first preset current I1 and the first correction current I3 (i.e. I0 is greater than or equal to I1-I3), the air conditioner fan 110 is controlled to continue to reduce the rotating speed.
If the operation current I0 is smaller than the difference between the first preset current I1 and the first correction current I3 (i.e., I0 < I1-I3), step S500 is executed: and controlling the air conditioner fan 110 to stop reducing the rotating speed, operating at the preset rotating speed V1, and recording the operating current I0 at the moment as a second preset current I2. The preset rotation speed V1 is less than or equal to the rotation speed of the air conditioner fan 110 corresponding to the second preset current I2.
When the rotating speed of the air conditioner fan 110 is reduced, the operating current I0 is also reduced, and when the operating current I0 is reduced to be smaller than the difference between the first preset current I1 and the first correction current I3, the operating load and the motor temperature of the air conditioner fan 110 are reduced to a safe range, so that the service life and the working stability of the air conditioner fan 110 are not greatly affected, and at this time, the rotating speed of the air conditioner fan 110 is not reduced any more, so that the air conditioner 100 can keep operating, and the user experience of the air conditioner 100 is ensured.
After step S500 (i.e., controlling the air conditioner fan 110 to stop decreasing the rotation speed and operate at the preset rotation speed V1), the control method of the air conditioner fan further includes step S600:
whether the operation current I0 is smaller than the difference between the second preset current I2 and the second corrected current I4 and whether the operation time of the air conditioner fan 110 after the operation current I0 is larger than the first preset current I1 (i.e., the operation time of the air conditioner fan 110 from when the operation current I0 is just larger than the first preset current I1) is larger than the second preset time T2 is determined.
The second predetermined current I2 is equal to the current of the air-conditioning fan 110 when the operating current I0 is just smaller than the difference between the first predetermined current I1 and the first correction current I3. The second correction current I4 can be determined according to actual conditions, and is generally 180mA-220 mA. In this embodiment, the second correction current I4 is 200 mA. In other embodiments, the second correction current I4 may be 180mA, 185mA, 190mA, 195mA, 205mA, 210mA, 215mA, or 220 mA. The second preset time T2 can also be determined according to actual conditions, and is generally 8-12 min. In this embodiment, the second predetermined time T2 is 10 min. In other embodiments, the second preset time T2 may also be 8min, 9min, 11min or 12 min.
If the operating current I0 is greater than or equal to the difference between the second preset current I2 and the second correction current I4 (i.e. I0 is greater than or equal to I2-I4), and/or the operating time of the air conditioner fan 110 after the operating current I0 is greater than the first preset current I1 is less than or equal to a second preset time T2, controlling the air conditioner fan 110 to continue to operate at the preset rotating speed V1.
If the operation current I0 is less than the difference between the second preset current I2 and the second corrected current I4 (i.e., I0 < I2-I4) and the operation time of the air conditioner fan 110 after the operation current I0 is greater than the first preset current I1 is greater than the second preset time T2, step S700 is executed: the rotational speed limit of the air conditioner fan 110 is released so that the rotational speed of the air conditioner fan 110 can exceed the preset rotational speed V1, i.e., can be operated at a rotational speed greater than the preset rotational speed V1 and less than or equal to the maximum rotational speed V0.
When the operating current I0 changes to a certain threshold and the air conditioner fan 110 starts to operate for a period of time from the reduced rotation speed, the air conditioner fan 110 may increase the rotation speed to recover the original rotation speed, thereby ensuring the operation effect of the air conditioner 100 and improving the user experience of the air conditioner 100.
The third embodiment:
referring to fig. 4, an embodiment of the present invention provides a control device 200 for an air conditioner blower, which can be used in the controller 120 of the air conditioner provided in the first embodiment to execute the control method for the air conditioner blower provided in the second embodiment.
The control device 200 of the air conditioner fan comprises an obtaining module 210, a judging module 220 and a control module 230.
The obtaining module 210 is configured to obtain the operating current I0 of the air conditioner fan 110 in real time. In this embodiment, the obtaining module 210 is configured to execute step S100.
The determining module 220 is used for determining whether the operating current I0 is greater than a first preset current I1. In this embodiment, the determining module is configured to execute step S200.
The control module 230 is configured to control the air conditioner fan 110 to decrease the rotation speed when the operation current I0 is greater than the first preset current I1. In this embodiment, the control module 230 is configured to execute step S300.
The control device 200 of the air conditioner fan can monitor the operation load and the motor temperature of the air conditioner fan 110 by monitoring the operation current I0 of the air conditioner fan 110 in real time, and control the air conditioner fan 110 to reduce the rotating speed when the operation current I0 exceeds the first preset current I1, thereby reducing the operation current I0 of the air conditioner fan 110, further reducing the operation load and the motor temperature of the air conditioner fan 110, avoiding influencing the service life of the air conditioner fan 110, reducing the failure probability of the air conditioner fan 110, and improving the working stability of the air conditioner fan 110.
The fourth embodiment:
an embodiment of the present invention provides a computer-readable storage medium, on which a computer program (i.e., the control device of the air conditioner fan provided in the third embodiment) is stored, and when the computer program is executed by a processor, the control method of the air conditioner fan provided in the second embodiment can be implemented.
Note that the computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A control method of an air conditioner fan is characterized by comprising the following steps:
acquiring the running current of an air conditioner fan in real time;
controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is greater than a first preset current;
the step of controlling the air conditioner fan to reduce the rotating speed further comprises the following steps:
under the condition that the operating current is smaller than the difference between the first preset current and the first correction current, controlling the air-conditioning fan to stop reducing the rotating speed, operating at a preset rotating speed, and simultaneously recording the operating current at the moment as a second preset current, wherein the preset rotating speed is smaller than or equal to the rotating speed of the air-conditioning fan corresponding to the second preset current;
and under the condition that the operating current is smaller than the difference between a second preset current and a second correction current and the operating time of the air-conditioning fan after the operating current is larger than the first preset current is larger than a second preset time, the limitation on the rotating speed of the air-conditioning fan is removed, so that the rotating speed of the air-conditioning fan can exceed the preset rotating speed.
2. The method for controlling an air conditioner fan as recited in claim 1, wherein the step of obtaining an operating current of the air conditioner fan is preceded by the steps of:
and controlling the air conditioner fan to start and operate for a first preset time.
3. The control method of the air conditioner fan as claimed in claim 2, wherein the first preset time is 160s-200 s.
4. The method for controlling the air conditioner fan as claimed in claim 1, wherein the step of obtaining the operation current of the air conditioner fan comprises:
and acquiring a plurality of actual currents in a current sampling period, and calculating the average value of the actual currents to serve as the running current.
5. The control method of the air conditioner fan as claimed in claim 1, wherein the first correction current is 80mA-120 mA.
6. The control method of the air conditioner fan as claimed in claim 1, wherein the second correction current is 180mA-220mA, and the second preset time is 8-12 min.
7. The control method of the air conditioner fan as claimed in any one of claims 1 to 6, wherein the air conditioner fan is decelerated at a preset speed, and the preset speed is 40r/min to 60 r/min.
8. The method for controlling an air conditioner fan as claimed in any one of claims 1 to 6, wherein the air conditioner fan is a dc fan of an outdoor unit of an air conditioner.
9. The control method of an air conditioner blower according to any one of claims 1 to 6, wherein the operating current is a peak current.
10. The method for controlling the air conditioner fan as claimed in any one of claims 1 to 6, wherein the first preset current is a current for reliably operating the air conditioner fan at the highest rotation speed under different environments.
11. The control device of the air conditioner fan is characterized by comprising an acquisition module and a control module;
the acquisition module is used for acquiring the running current of the air conditioner fan in real time;
the control module is used for controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is larger than a first preset current, and controlling the air conditioner fan to stop reducing the rotating speed under the condition that the running current is smaller than the difference between the first preset current and the first correction current, and operates at a preset rotating speed, and simultaneously records the operating current at the moment as a second preset current, wherein the preset rotating speed is less than or equal to the rotating speed of the air-conditioning fan corresponding to the second preset current, and under the condition that the running current is smaller than the difference between a second preset current and a second correction current and the running time of the air-conditioning fan after the running current is larger than the first preset current is larger than a second preset time, and releasing the limit of the rotating speed of the air conditioner fan so that the rotating speed of the air conditioner fan can exceed the preset rotating speed.
12. An air conditioner is characterized by comprising a controller and an air conditioner fan which are in communication connection, wherein the controller is used for acquiring the running current of the air conditioner fan in real time, controlling the air conditioner fan to reduce the rotating speed under the condition that the running current is greater than a first preset current, controlling the air conditioner fan to stop reducing the rotating speed under the condition that the running current is less than the difference between the first preset current and a first correction current, running at a preset rotating speed, and recording the running current at the moment as a second preset current, wherein the preset rotating speed is less than or equal to the rotating speed of the air conditioner fan corresponding to the second preset current, under the condition that the running current is less than the difference between the second preset current and the second correction current and the running time of the air conditioner fan after the running current is greater than the first preset current is greater than a second preset time, and releasing the limit of the rotating speed of the air conditioner fan so that the rotating speed of the air conditioner fan can exceed the preset rotating speed.
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