CN113847701B - Control method and control device of air conditioner and air conditioning system - Google Patents
Control method and control device of air conditioner and air conditioning system Download PDFInfo
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- CN113847701B CN113847701B CN202111113149.7A CN202111113149A CN113847701B CN 113847701 B CN113847701 B CN 113847701B CN 202111113149 A CN202111113149 A CN 202111113149A CN 113847701 B CN113847701 B CN 113847701B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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Abstract
The application provides a control method, a control device and an air conditioning system of an air conditioner, wherein the air conditioner comprises an outer unit, the outer unit comprises an outer fan, and the control method comprises the following steps: detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates in a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction; judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and under the condition that the outer fan is determined to be abnormal, the outer fan is controlled to rotate along a second rotation direction, and the second rotation direction is the reverse direction of the first rotation direction. The control method solves the problem of poor heat exchange effect caused by abnormal work of the external fan in the prior art.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a control method and a control device of an air conditioner, a computer readable storage medium, a processor and an air conditioning system.
Background
The outer machine fan of the air conditioning system in the prior art only has one steering direction to exchange heat, and the direction is either clockwise or anticlockwise. According to understanding after sale, a lot of installation air conditioners are irregular in position, or installation space is limited and the like, the air outlet is blocked, namely heat exchange efficiency is not good, users often complain that the air conditioners do not refrigerate, the comfort is poor, the air conditioner is easy to protect and shut down, for example, as shown in fig. 1, the air outlet side generally requires more than 200cm, actual space is not allowed, the air conditioner is almost pasted on the wall, the wind direction of the fan is forward, namely, the air inlet side enters the air, the air outlet side exits the air, the wind resistance is large, the refrigeration hot air return is easy to cause, the heat dissipation effect is poor, the refrigeration effect is poor, and even the shutdown is protected.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The main purpose of the present application is to provide a control method, a control device, a computer-readable storage medium, a processor and an air conditioning system for an air conditioner, so as to solve the problem in the prior art that the heat exchange effect is poor due to abnormal operation of an external fan.
According to an aspect of an embodiment of the present invention, there is provided a control method of an air conditioner including an outer unit including an outer fan, the method including: detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates in a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction; judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and under the condition that the abnormality of the outer fan is determined, controlling the outer fan to rotate along a second rotation direction, wherein the second rotation direction is the reverse direction of the first rotation direction.
Optionally, determining whether an abnormality occurs according to the first power includes: determining that the air outlet abnormality occurs when the first power is greater than or equal to a first preset power, wherein the first preset power is greater than a first rated power, and the first rated power is the rated power of the outer fan along the first rotating direction; and determining that the air inlet abnormality occurs under the condition that the first power is less than or equal to a second preset power, wherein the second preset power is less than the first rated power.
Optionally, after controlling the outer fan to rotate in the second rotation direction, the method further includes: under the condition that the rotation of the outer fan along the second rotation direction reaches the preset rotation speed, detecting the power of the outer fan to obtain second power; determining whether the outer fan is abnormal or not according to the second power; determining an optimal rotation direction according to the first power and the second power under the condition that the abnormality occurs, wherein the optimal rotation direction is the first rotation direction or the second rotation direction; and controlling the outer fan to rotate along the optimal rotation direction.
Optionally, determining whether an abnormality occurs according to the second power includes: determining that the abnormal air outlet occurs under the condition that the second power is greater than or equal to a third preset power, wherein the third preset power is greater than a second rated power, and the second rated power is the rated power of the outer fan along the second rotation direction; and determining that the air inlet abnormality occurs under the condition that the second power is less than or equal to a fourth preset power, wherein the fourth preset power is less than the second rated power.
Optionally, determining an optimal rotation direction according to the first power and the second power when the abnormality occurs includes: calculating an absolute value of a difference value between the first power and a first average power to obtain a first offset value, wherein the first average power is an average value of a first preset power and a second preset power, the first preset power is greater than a first rated power, the second preset power is smaller than the first rated power, and the first rated power is the rated power of the outer fan along the first rotating direction; calculating an absolute value of a difference value between the second power and a second average power to obtain a second offset value, wherein the second average power is an average value of a third preset power and a fourth preset power, the third preset power is greater than a second rated power, the fourth preset power is smaller than the second rated power, and the second rated power is the rated power of the outer fan along the second rotation direction; and determining the optimal rotation direction according to the difference value of the first offset value and the second offset value.
Optionally, determining the optimal rotation direction according to a difference between the first offset value and the second offset value includes: determining the optimal rotation direction as the second rotation direction when a difference between the first offset value and the second offset value is greater than zero; determining the optimal rotation direction as the first rotation direction when a difference between the first offset value and the second offset value is less than or equal to zero.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus of an air conditioner including an outer unit including an outer fan, the apparatus including: the detection unit is used for detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotation direction to reach a preset rotation speed, wherein the first rotation direction is clockwise or anticlockwise; the judging unit is used for judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and the control unit is used for controlling the outer fan to rotate along a second rotation direction under the condition that the outer fan is determined to be abnormal, wherein the second rotation direction is the reverse direction of the first rotation direction.
According to still another aspect of embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program executes any one of the methods.
According to another aspect of the embodiments of the present invention, there is also provided a processor, configured to execute a program, where the program executes any one of the methods.
According to still another aspect of the embodiments of the present invention, there is also provided an air conditioning system including an air conditioner and a control device of the air conditioner for performing any one of the methods.
In an embodiment of the present invention, in the method for controlling an air conditioner, first, when the external fan rotates in a first rotation direction to reach a predetermined rotation speed, the power of the external fan is detected to obtain a first power, where the first rotation direction is a clockwise direction or a counterclockwise direction; then, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and finally, under the condition that the abnormality of the outer fan is determined, controlling the outer fan to rotate along a second rotation direction, wherein the second rotation direction is the reverse direction of the first rotation direction. The control method determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate in the reverse direction under the condition that the abnormal air outlet and the abnormal air inlet occur, and keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, thereby reducing the probability of the abnormal air outlet and the abnormal air inlet, ensuring the heat exchange effect of an outer unit of the air conditioner, and solving the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 illustrates an installation schematic of a prior art air conditioner;
fig. 2 illustrates a schematic diagram of a control apparatus of an air conditioner according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As mentioned in the background art, in the prior art, the heat exchange effect is poor due to the abnormal operation of the external fan, and in order to solve the above problems, in an exemplary embodiment of the present application, a control method, a control device, a computer-readable storage medium, a processor, and an air conditioning system for an air conditioner are provided.
According to an embodiment of the present application, there is provided a control method of an air conditioner including an outer unit including an outer fan. The method comprises the following steps:
step S101, detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction;
step S102, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality;
and step S103, controlling the outer fan to rotate along a second rotation direction under the condition that the outer fan is determined to have the abnormality, wherein the second rotation direction is the reverse direction of the first rotation direction.
In the control method of the air conditioner, firstly, under the condition that the rotation of the outer fan along a first rotation direction reaches a preset rotation speed, the power of the outer fan is detected to obtain a first power, and the first rotation direction is a clockwise direction or a counterclockwise direction; then, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and finally, under the condition that the abnormality of the outer fan is determined, controlling the outer fan to rotate along a second rotation direction, wherein the second rotation direction is the reverse direction of the first rotation direction. The control method determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate in the reverse direction under the condition that the abnormal air outlet and the abnormal air inlet occur, and keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, thereby reducing the probability of the abnormal air outlet and the abnormal air inlet, ensuring the heat exchange effect of an outer unit of the air conditioner, and solving the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
It should be noted that the predetermined rotation speed may be a rated rotation speed of the external fan, or a rotation speed determined by a person skilled in the art according to actual conditions, for example, 900r/s, and the control method of the air conditioner may be applied to a cooling mode, a dehumidification mode, and other modes requiring heat dissipation of the external unit of the air conditioner, and of course, may also be applied to a heating mode in the case of no frost formation and defrosting.
In an embodiment of the present application, determining whether an abnormality occurs according to the first power includes: determining that the air outlet abnormality occurs when the first power is greater than or equal to a first predetermined power, wherein the first predetermined power is greater than a first rated power, and the first rated power is a rated power of the outer fan along the first rotating direction; and determining that the air inlet abnormality occurs under the condition that the first power is less than or equal to a second preset power, wherein the second preset power is less than the first rated power. Specifically, the first power P 1 Power for the rotation of the outer fan in the first direction of rotation up to a predetermined speed of rotation, said first predetermined power N 1 Greater than a first rated power, at said first power P 1 Greater than or equal to a first predetermined power N 1 Under the condition (N), the power consumption of the outer fan is increased due to unsmooth air outlet of the outer fan, namely the abnormal air outlet occurs, and the second preset power N 2 Is less than the first rated power and is at the first power P 1 Less than or equal to a second predetermined power N 2 In addition, the person skilled in the art can set the first predetermined power N according to actual conditions 1 And the second predetermined power N 2 The value of (2) to avoid abnormal inspection error caused by normal fluctuation of power and improve the accuracy of detection.
In an embodiment of the present application, after controlling the outer fan to rotate in the second rotation direction, the method further includes: detecting the power of the outer fan under the condition that the rotation of the outer fan along the second rotation direction reaches the preset rotation speed to obtain a second power; determining whether the external fan is abnormal according to the second power; determining an optimal rotation direction according to the first power and the second power when the abnormality occurs, wherein the optimal rotation direction is the first rotation direction or the second rotation direction; and controlling the outer fan to rotate along the optimal rotation direction. Specifically, after the external fan is controlled to rotate reversely, whether abnormal air outlet and abnormal air inlet occur is determined by detecting the power of the external fan, if the abnormal conditions do not occur, the current direction is kept to rotate, if the abnormal conditions occur, the abnormal conditions in the two rotation directions need to be determined according to the first power and the second power, the optimal rotation direction is determined, and the external fan is controlled to rotate along the optimal rotation direction, so that the heat exchange effect of the external unit of the air conditioner is further ensured.
In an embodiment of the present application, determining whether an abnormality occurs according to the second power includes: determining that the air-out abnormality occurs when the second power is greater than or equal to a third predetermined power, the third predetermined power being greater than a second rated power, the second rated power being an amount of the external fan in the second rotation directionFixing power; and determining that the air inlet abnormality occurs under the condition that the second power is less than or equal to a fourth preset power, wherein the fourth preset power is less than the second rated power. Specifically, the second power P 2 The power for the external fan to rotate along the second rotation direction to reach the preset rotation speed, and the third preset power N 3 Greater than a second rated power, at said second power P 2 Greater than or equal to a third predetermined power N 3 Under the condition (N), the power consumption of the outer fan is increased due to unsmooth air outlet of the outer fan, namely the abnormal air outlet occurs, and the fourth preset power N 4 Is less than the second rated power and is at the second power P 2 Less than or equal to a fourth predetermined power N 4 In addition, the skilled person can set the third predetermined power N according to actual conditions 3 And the fourth predetermined power N 4 The value of (2) to avoid abnormal inspection error caused by normal fluctuation of power and improve the accuracy of detection.
It should be noted that, the second rated power and the first rated power may be slightly different, the outlet air in the second rotation direction may face the condenser, and theoretically, the rated power of the outer fan in the second rotation direction may be slightly higher than that of the outer fan in the first rotation direction which does not face the condenser, and may be opposite to that of the outer fan in the second rotation direction.
In an embodiment of the present application, determining an optimal rotation direction according to the first power and the second power when the abnormality occurs includes: calculating an absolute value of a difference between the first power and a first average power to obtain a first offset value, where the first average power is an average value of a first predetermined power and a second predetermined power, the first predetermined power is greater than a first rated power, the second predetermined power is less than the first rated power, and the first rated power is a rated power of the outer fan along the first rotating direction; calculating an absolute value of a difference between the second power and a second average power to obtain a second offset value, where the second average power is an average value of a third predetermined power and a fourth predetermined power, the third predetermined power is greater than a second rated power, the fourth predetermined power is less than the second rated power, and the second rated power is a rated power of the external fan in the second rotation direction; and determining the optimal rotation direction according to the difference value of the first offset value and the second offset value. Specifically, an absolute value of a difference between the first power and the first average power is calculated to obtain a first deviation value, that is, the degree of abnormality occurring when the outer fan rotates in the first rotation direction, which may be the degree of unsmooth air outlet or the degree of unsmooth air inlet, can be reflected by the first deviation value, and similarly, the degree of abnormality occurring when the outer fan rotates in the second rotation direction, which may be the degree of unsmooth air outlet or the degree of unsmooth air inlet, can be reflected by the second deviation value, and the magnitudes of the abnormal degrees in the two rotation directions can be determined by comparing the magnitudes of the first deviation value and the second deviation value, so as to determine the optimal rotation direction.
In an embodiment of the application, determining the optimal rotation direction according to a difference between the first offset value and the second offset value includes: determining the optimal rotation direction as the second rotation direction when a difference between the first offset value and the second offset value is greater than zero; determining the optimal rotation direction as the first rotation direction when a difference between the first offset value and the second offset value is less than or equal to zero. Specifically, in the case where the difference between the first offset value and the second offset value is greater than zero, i.e., | P 1 -(N 1 +N 2 )/2|-|P 2 -(N 3 +N 4 ) And/2 | is greater than 0, so that the abnormal degree of the rotation in the second rotation direction is small, the optimal rotation direction is determined to be the second rotation direction, and | P is obtained when the difference value between the first offset value and the second offset value is less than or equal to zero 1 -(N 1 +N 2 )/2|-|P 2 -(N 3 +N 4 ) And the/2 | ≦ 0, so that the abnormal degree of the rotation in the first rotation direction is smaller, and the optimal rotation direction is determined to be the first rotation direction.
When the external fan does not rotate abnormally in the first rotation direction, the external fan is controlled to rotate in the second rotation direction and the compressor is controlled to be turned off when the protection shutdown related to poor heat dissipation such as exhaust and pressure occurs, the compressor is controlled to be started when the difference value between the first offset value and the second offset value is greater than zero, a fault code is output when the protection shutdown related to poor heat dissipation such as exhaust and pressure occurs, and the external fan is controlled to be stopped and a fault code is output when the difference value between the first offset value and the second offset value is less than or equal to zero.
The embodiment of the present application further provides a control device of an air conditioner, and it should be noted that the control device of the air conditioner according to the embodiment of the present application may be used to execute the control method for the air conditioner according to the embodiment of the present application. The control device of the air conditioner provided by the embodiment of the present application is introduced below, and the air conditioner includes an external unit including an external fan.
Fig. 2 is a schematic diagram of a control apparatus of an air conditioner according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
a detecting unit 10, configured to detect a power of the external fan to obtain a first power when the external fan rotates in a first rotation direction to reach a predetermined rotation speed, where the first rotation direction is a clockwise direction or a counterclockwise direction;
a determining unit 20, configured to determine whether the external fan is abnormal according to the first power, where the abnormality includes an air outlet abnormality and an air inlet abnormality;
a control unit 30 for controlling the outer fan to rotate in a second rotation direction, which is a reverse direction of the first rotation direction, when it is determined that the abnormality occurs in the outer fan.
In the control device of the air conditioner, the detection unit detects the power of the external fan to obtain a first power when the external fan rotates along a first rotation direction to reach a preset rotation speed, wherein the first rotation direction is a clockwise direction or a counterclockwise direction; the determining unit judges whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; the control unit controls the outer fan to rotate in a second rotation direction, which is a reverse direction of the first rotation direction, when determining that the abnormality occurs in the outer fan. The control device determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate reversely under the condition that the abnormal air outlet and the abnormal air inlet occur, keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, reduces the probability of the abnormal air outlet and the abnormal air inlet, ensures the heat exchange effect of an outer unit of an air conditioner, and solves the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
The predetermined rotation speed may be a rated rotation speed of the external fan, or a rotation speed determined by a person skilled in the art according to actual conditions, for example, 900r/s, and the control method of the air conditioner may be applied to a cooling mode, a dehumidification mode, and other modes requiring heat dissipation of the external unit of the air conditioner, and of course, may also be applied to a heating mode in the case where frost is not formed and frost is formed.
In an embodiment of the present application, the determining unit includes a first determining subunit and a second determining subunit, where the first determining subunit is configured to determine that the abnormal air outlet occurs when the first power is greater than or equal to a first predetermined power, the first predetermined power is greater than a first rated power, and the first rated power is a rated power of the outer fan along the first rotating direction; the second determining subunit is configured to determine that the intake air abnormality occurs when the first power is less than or equal to a second predetermined power, where the second predetermined power is less than the first rated power. Specifically, the first power P 1 Power for the rotation of the outer fan in the first direction of rotation up to a predetermined speed of rotation, said first predetermined power N 1 Greater than a first rated power, at said first power P 1 Greater than or equal to a first predetermined power N 1 Under the condition, the unsmooth air outlet of the outer fan can be determinedThe second predetermined power N is higher than the first predetermined power N, which results in the power consumption of the external fan being increased, i.e. the abnormal air outlet occurs 2 Is less than the first rated power and is at the first power P 1 Less than or equal to a second predetermined power N 2 In addition, the person skilled in the art can set the first predetermined power N according to actual conditions 1 And the second predetermined power N 2 The value of (2) to avoid abnormal inspection error caused by normal fluctuation of power and improve the accuracy of detection.
In an embodiment of the present application, the apparatus further includes a determining unit, where the determining unit includes an inspecting subunit, a third determining subunit, a fourth determining subunit, and a control subunit, where the inspecting subunit is configured to detect the power of the external air blower to obtain a second power when the external air blower rotates in the second rotation direction to reach the predetermined rotation speed after controlling the external air blower to rotate in the second rotation direction; the third determining subunit is configured to determine whether the external fan is abnormal according to the second power; the fourth determining subunit is configured to determine, when the abnormality occurs, an optimal rotation direction according to the first power and the second power, where the optimal rotation direction is the first rotation direction or the second rotation direction; the control subunit is used for controlling the outer fan to rotate along the optimal rotation direction. Specifically, after the external fan is controlled to rotate reversely, whether abnormal air outlet and abnormal air inlet occur is determined by detecting the power of the external fan, if the abnormal conditions do not occur, the current direction is kept to rotate, if the abnormal conditions occur, the abnormal conditions in the two rotation directions need to be determined according to the first power and the second power, the optimal rotation direction is determined, and the external fan is controlled to rotate along the optimal rotation direction, so that the heat exchange effect of the external unit of the air conditioner is further ensured.
In an embodiment of the application, the third determining subunit includes a first determining module and a second determining module, wherein the second determining moduleThe determining module is used for determining that the air outlet abnormality occurs when the second power is greater than or equal to a third preset power, wherein the third preset power is greater than a second rated power, and the second rated power is the rated power of the outer fan along the second rotating direction; the second determining module is configured to determine that the intake air abnormality occurs when the second power is less than or equal to a fourth predetermined power, where the fourth predetermined power is less than the second rated power. Specifically, the second power P 2 The power for the external fan to rotate along the second rotation direction to reach the preset rotation speed, and the third preset power N 3 Greater than a second rated power, at said second power P 2 Greater than or equal to a third predetermined power N 3 Under the condition (N), the power consumption of the outer fan is increased due to unsmooth air outlet of the outer fan, namely the abnormal air outlet occurs, and the fourth preset power N 4 Is less than the second rated power and is at the second power P 2 Less than or equal to a fourth predetermined power N 4 In addition, the skilled person can set the third predetermined power N according to actual conditions 3 And the fourth predetermined power N 4 The abnormal detection error caused by the normal fluctuation of the power is avoided, and the detection accuracy is improved.
It should be noted that, the second rated power and the first rated power may be slightly different, the outlet air in the second rotation direction may face the condenser, and the rated power may be slightly higher than that of the outlet air in the first rotation direction theoretically, but may be opposite to that.
In an embodiment of the present application, the fourth determining subunit includes a first calculating module, a second calculating module and a third determining module, where the first calculating module is configured to calculate an absolute value of a difference between the first power and a first average power to obtain a first offset value, the first average power is an average value of a first predetermined power and a second predetermined power, the first predetermined power is greater than a first rated power, the second predetermined power is less than the first rated power, and the first rated power is a rated power of the outer fan along the first rotation direction; the second calculating module is configured to calculate an absolute value of a difference between the second power and a second average power to obtain a second offset value, where the second average power is an average value of a third predetermined power and a fourth predetermined power, the third predetermined power is greater than a second rated power, the fourth predetermined power is smaller than the second rated power, and the second rated power is a rated power of the external fan in the second rotation direction; the third determining module is configured to determine the optimal rotation direction according to a difference between the first offset value and the second offset value. Specifically, an absolute value of a difference between the first power and the first average power is calculated to obtain a first deviation value, that is, the degree of abnormality occurring when the outer fan rotates in the first rotation direction, which may be the degree of unsmooth air outlet or the degree of unsmooth air inlet, can be reflected by the first deviation value, and similarly, the degree of abnormality occurring when the outer fan rotates in the second rotation direction, which may be the degree of unsmooth air outlet or the degree of unsmooth air inlet, can be reflected by the second deviation value, and the magnitudes of the abnormal degrees in the two rotation directions can be determined by comparing the magnitudes of the first deviation value and the second deviation value, so as to determine the optimal rotation direction.
In an embodiment of the application, the third determining module includes a first determining sub-module and a second determining sub-module, where the first determining sub-module is configured to determine the optimal rotating direction as the second rotating direction when a difference between the first offset value and the second offset value is greater than zero; the second determining submodule is configured to determine that the optimal rotation direction is the first rotation direction when a difference between the first offset value and the second offset value is smaller than or equal to zero. Specifically, in the case where the difference between the first offset value and the second offset value is greater than zero, i.e., | P 1 -(N 1 +N 2 )/2|-|P 2 -(N 3 +N 4 ) The value of/2 > 0, it can be seen that the degree of abnormality occurring in the rotation in the second rotation direction is small, and the above-mentioned maximum value is determinedThe preferred rotation direction is the second rotation direction, and | P is a value obtained when the difference between the first offset value and the second offset value is less than or equal to zero 1 -(N 1 +N 2 )/2|-|P 2 -(N 3 +N 4 ) And the/2 | ≦ 0, so that the abnormal degree of the rotation in the first rotation direction is smaller, and the optimal rotation direction is determined to be the first rotation direction.
When the external fan does not rotate abnormally in the first rotation direction, the external fan is controlled to rotate in the second rotation direction and the compressor is controlled to be turned off when the protection shutdown related to poor heat dissipation such as exhaust and pressure occurs, the compressor is controlled to be started when the difference value between the first offset value and the second offset value is greater than zero, a fault code is output when the protection shutdown related to poor heat dissipation such as exhaust and pressure occurs, and the external fan is controlled to be stopped and a fault code is output when the difference value between the first offset value and the second offset value is less than or equal to zero.
The embodiment of the application also provides an air conditioning system, which comprises an air conditioner and a control device of the air conditioner, wherein the control device of the air conditioner is used for executing any one of the methods.
The air conditioning system comprises an air conditioner and a control device of the air conditioner, wherein a detection unit detects the power of the external fan to obtain a first power under the condition that the external fan rotates along a first rotating direction to reach a preset rotating speed, and the first rotating direction is a clockwise direction or an anticlockwise direction; the determining unit judges whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; the control unit controls the outer fan to rotate in a second rotation direction, which is a reverse direction of the first rotation direction, when determining that the abnormality occurs in the outer fan. The control device determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate reversely under the condition that the abnormal air outlet and the abnormal air inlet occur, keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, reduces the probability of the abnormal air outlet and the abnormal air inlet, ensures the heat exchange effect of an outer unit of an air conditioner, and solves the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
The control device of the air conditioner comprises a processor and a memory, wherein the detection unit, the judgment unit, the control unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The inner core can be set to be one or more than one, and the problem that the heat exchange effect is poor due to the abnormal work of the external fan in the prior art is solved by adjusting the parameters of the inner core.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium on which a program is stored, which when executed by a processor implements the above-described method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the method is executed when the program runs.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, at least the following steps are realized:
step S101, detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction;
step S102, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality;
and step S103, controlling the outer fan to rotate along a second rotation direction under the condition that the outer fan is determined to have the abnormality, wherein the second rotation direction is the reverse direction of the first rotation direction.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:
step S101, detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction;
step S102, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality;
and step S103, controlling the outer fan to rotate along a second rotation direction under the condition that the outer fan is determined to have the abnormality, wherein the second rotation direction is the reverse direction of the first rotation direction.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage media comprise: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the control method of the air conditioner, firstly, under the condition that the rotation of the outer fan along a first rotation direction reaches a preset rotation speed, the power of the outer fan is detected to obtain a first power, wherein the first rotation direction is a clockwise direction or an anticlockwise direction; then, judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; and finally, under the condition that the abnormality of the outer fan is determined, controlling the outer fan to rotate along a second rotation direction, wherein the second rotation direction is the reverse direction of the first rotation direction. The control method determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate in the reverse direction under the condition that the abnormal air outlet and the abnormal air inlet occur, and keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, thereby reducing the probability of the abnormal air outlet and the abnormal air inlet, ensuring the heat exchange effect of an outer unit of the air conditioner, and solving the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
2) In the control device of the air conditioner, the detection unit detects the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotation direction to reach a preset rotation speed, wherein the first rotation direction is a clockwise direction or an anticlockwise direction; the determining unit judges whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; the control unit controls the outer fan to rotate in a second rotation direction, which is a reverse direction of the first rotation direction, when determining that the abnormality occurs in the outer fan. The control device determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate reversely under the condition that the abnormal air outlet and the abnormal air inlet occur, keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, reduces the probability of the abnormal air outlet and the abnormal air inlet, ensures the heat exchange effect of an outer unit of an air conditioner, and solves the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
3) The air conditioning system comprises an air conditioner and a control device of the air conditioner, wherein a detection unit detects the power of an external fan to obtain a first power under the condition that the external fan rotates along a first rotation direction to reach a preset rotation speed, and the first rotation direction is clockwise or anticlockwise; the determining unit judges whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality; the control unit controls the outer fan to rotate in a second rotation direction, which is a reverse direction of the first rotation direction, when determining that the abnormality occurs in the outer fan. The control device determines whether abnormal air outlet and abnormal air inlet occur or not by detecting the power of the outer fan, controls the outer fan to rotate reversely under the condition that the abnormal air outlet and the abnormal air inlet occur, keeps the current direction to rotate if the abnormal air outlet and the abnormal air inlet do not occur, reduces the probability of the abnormal air outlet and the abnormal air inlet, ensures the heat exchange effect of an outer unit of an air conditioner, and solves the problem of poor heat exchange effect caused by the abnormal work of the outer fan in the prior art.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A control method of an air conditioner, wherein the air conditioner includes an outdoor unit including an external fan, the method comprising:
detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates in a first rotating direction to reach a preset rotating speed, wherein the first rotating direction is a clockwise direction or an anticlockwise direction;
judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality;
under the condition that the abnormality of the outer fan is determined, controlling the outer fan to rotate along a second rotation direction, wherein the second rotation direction is the reverse direction of the first rotation direction;
under the condition that the rotation of the outer fan along the second rotation direction reaches the preset rotation speed, detecting the power of the outer fan to obtain second power;
determining whether the outer fan is abnormal or not according to the second power;
determining an optimal rotation direction according to the first power and the second power under the condition that the abnormality occurs, wherein the optimal rotation direction is the first rotation direction or the second rotation direction;
and controlling the outer fan to rotate along the optimal rotation direction.
2. The method of claim 1, wherein determining whether an anomaly has occurred based on the first power comprises:
determining that the air outlet abnormality occurs when the first power is greater than or equal to a first preset power, wherein the first preset power is greater than a first rated power, and the first rated power is the rated power of the outer fan along the first rotating direction;
and determining that the air inlet abnormality occurs under the condition that the first power is less than or equal to a second preset power, wherein the second preset power is less than the first rated power.
3. The method of claim 1, wherein determining whether an anomaly has occurred based on the second power comprises:
determining that the air outlet abnormality occurs when the second power is greater than or equal to a third predetermined power, wherein the third predetermined power is greater than a second rated power, and the second rated power is the rated power of the outer fan along the second rotation direction;
and determining that the air inlet abnormality occurs under the condition that the second power is less than or equal to a fourth preset power, wherein the fourth preset power is less than the second rated power.
4. The method of claim 1, wherein determining an optimal rotational direction from the first power and the second power in the event of the anomaly comprises:
calculating an absolute value of a difference value between the first power and a first average power to obtain a first offset value, wherein the first average power is an average value of a first preset power and a second preset power, the first preset power is greater than a first rated power, the second preset power is smaller than the first rated power, and the first rated power is the rated power of the outer fan along the first rotating direction;
calculating an absolute value of a difference value between the second power and a second average power to obtain a second offset value, wherein the second average power is an average value of a third preset power and a fourth preset power, the third preset power is greater than a second rated power, the fourth preset power is smaller than the second rated power, and the second rated power is the rated power of the outer fan along the second rotation direction;
and determining the optimal rotation direction according to the difference value of the first offset value and the second offset value.
5. The method of claim 4, wherein determining the optimal rotational direction based on a magnitude of a difference between the first offset value and the second offset value comprises:
determining the optimal rotation direction as the second rotation direction when a difference between the first offset value and the second offset value is greater than zero;
determining the optimal rotation direction as the first rotation direction when a difference between the first offset value and the second offset value is less than or equal to zero.
6. The utility model provides a controlling means of air conditioner which characterized in that, air conditioner includes outer machine, outer machine includes outer fan, the device includes:
the detection unit is used for detecting the power of the outer fan to obtain a first power under the condition that the outer fan rotates along a first rotation direction to reach a preset rotation speed, wherein the first rotation direction is clockwise or anticlockwise;
the judging unit is used for judging whether the outer fan is abnormal or not according to the first power, wherein the abnormality comprises air outlet abnormality and air inlet abnormality;
the device comprises a control unit and a determination unit, wherein the control unit is used for controlling the outer fan to rotate along a second rotation direction under the condition that the outer fan is determined to be abnormal, the second rotation direction is the reverse direction of the first rotation direction, the determination unit comprises a checking subunit, a third determination subunit, a fourth determination subunit and a control subunit, and the checking subunit is used for detecting the power of the outer fan to obtain a second power under the condition that the outer fan rotates along the second rotation direction to reach the preset rotation speed after controlling the outer fan to rotate along the second rotation direction; the third determining subunit is configured to determine whether the external fan is abnormal according to the second power; the fourth determining subunit is configured to determine, when the abnormality occurs, an optimal rotation direction according to the first power and the second power, where the optimal rotation direction is the first rotation direction or the second rotation direction; the control subunit is used for controlling the outer fan to rotate along the optimal rotation direction.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program performs the method of any one of claims 1 to 5.
8. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 5.
9. An air conditioning system comprising an air conditioner and a control device of the air conditioner, characterized in that the control device of the air conditioner is adapted to perform the method of any of claims 1 to 5.
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