CN115371218A - Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium - Google Patents

Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium Download PDF

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Publication number
CN115371218A
CN115371218A CN202210970498.9A CN202210970498A CN115371218A CN 115371218 A CN115371218 A CN 115371218A CN 202210970498 A CN202210970498 A CN 202210970498A CN 115371218 A CN115371218 A CN 115371218A
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China
Prior art keywords
air conditioner
rotating speed
fan
temperature
controlling
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Pending
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CN202210970498.9A
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Chinese (zh)
Inventor
汪先兵
黄彩凤
金敏聪
卢毅强
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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Priority to CN202210970498.9A priority Critical patent/CN115371218A/en
Publication of CN115371218A publication Critical patent/CN115371218A/en
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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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • 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
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application provides a method and a device for controlling the rotating speed of an external fan of an air conditioner, the air conditioner and a storage medium, relates to the technical field of air conditioners, and solves the problems that the air conditioner is shut down when reaching a temperature and the comfort of indoor temperature is influenced in the prior art. The control method of the rotating speed of the air conditioner external fan comprises the following steps: acquiring the running time of an air conditioner, wherein the running time of the air conditioner is the accumulated running time of the air conditioner after the air conditioner is started; responding to the condition that the running time of the air conditioner is longer than a first time threshold, and acquiring the indoor environment temperature and the current rotating speed of a fan in the air conditioner; and controlling the rotating speed of the fan outside the air conditioner according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the fan in the air conditioner so as to prolong the period of the air conditioner when the air conditioner is stopped when the temperature is reached.

Description

Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium
Technical Field
The application relates to the technical field of air conditioners, in particular to a method and a device for controlling the rotating speed of an external air fan of an air conditioner, electronic equipment, an air conditioner and a storage medium.
Background
After the existing air conditioner is started for a long time and the indoor temperature reaches the vicinity of the preset temperature, the air conditioner can enter a low-load state to work in order to save energy because the refrigeration requirement is reduced. After a period of low load operation, the air conditioner may be shut down at a temperature. The temperature-reaching shutdown times are too many, the environmental temperature fluctuation is large, and the indoor temperature comfort is influenced.
Disclosure of Invention
In view of the above, the present application provides a method and an apparatus for controlling a rotation speed of an external air blower of an air conditioner, and a storage medium, so as to solve the problem that the comfort of indoor temperature is affected when the air conditioner is stopped due to temperature rise.
The technical solution adopted by the present application to solve the above technical problems is as follows:
in a first aspect, the present application provides a method for controlling a rotation speed of an external air blower of an air conditioner, including:
acquiring the operation time of an air conditioner, wherein the operation time of the air conditioner is the accumulated operation time of the air conditioner after the air conditioner is started;
responding to the condition that the running time of the air conditioner is longer than a first time threshold, and acquiring the indoor environment temperature and the current rotating speed of a fan in the air conditioner;
and controlling the rotating speed of the fan outside the air conditioner according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the fan in the air conditioner so as to prolong the period of warm shutdown of the air conditioner.
In this application part of embodiments, according to the temperature difference between indoor ambient temperature and the predetermined temperature reaches the current rotational speed of fan in the air conditioner, the rotational speed of fan outside the control air conditioner includes:
responding to the temperature difference value being smaller than a first temperature threshold value, and controlling the rotating speed of the air conditioner outer fan within a first rotating speed range or a second rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the first rotating speed range is smaller than the lower limit value of the second rotating speed range;
responding to the temperature difference value being larger than the first temperature threshold and smaller than a second temperature threshold, and controlling the rotating speed of the air conditioner outer fan within a second rotating speed range or a third rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the second rotating speed range is smaller than the lower limit value of the third rotating speed range;
and controlling the rotating speed of the air conditioner external fan in the third rotating speed range in response to the temperature difference value being larger than the second temperature threshold value.
In some embodiments of this application, the controlling the rotation speed of the air conditioner external fan in a first rotation speed range or a second rotation speed range according to the current rotation speed of the air conditioner internal fan in response to the temperature difference being smaller than a first temperature threshold includes:
responding to the fact that the temperature difference value is smaller than the first temperature threshold value and the current rotating speed of the air conditioner inner fan is equal to or larger than a preset rotating speed, and controlling the rotating speed of the air conditioner outer fan within the second rotating speed range;
and controlling the rotating speed of the air conditioner external fan within the first rotating speed range in response to the temperature difference value being smaller than the first temperature threshold value and the current rotating speed of the air conditioner internal fan being smaller than the preset rotating speed.
In some embodiments of the present application, the controlling the rotation speed of the air conditioner external fan in the second rotation speed range or the third rotation speed range according to the current rotation speed of the air conditioner internal fan in response to the temperature difference being greater than the first temperature threshold and smaller than the second temperature threshold includes:
when the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan is equal to or larger than a preset rotating speed, controlling the rotating speed of the air conditioner outer fan within the third rotating speed range;
and controlling the rotating speed of the air conditioner external fan within the second rotating speed range in response to that the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner internal fan is smaller than the preset rotating speed.
In some embodiments of the present application, the control method further includes: and responding to the condition that the running time of the air conditioner is less than or equal to the first time threshold, acquiring the supercooling degree of the air conditioner every preset time, and controlling the rotating speed of the air conditioner external fan according to the relation between the supercooling degree and the preset supercooling degree.
In some embodiments of the present application, the controlling the rotation speed of the air conditioner external fan according to the obtained relationship between the supercooling degree and a preset supercooling degree includes:
controlling the rotating speed of the air conditioner external fan to be reduced in response to the fact that the supercooling degree is larger than or equal to a first preset supercooling degree;
responding to the fact that the supercooling degree is larger than or equal to a second preset supercooling degree and smaller than the first preset supercooling degree, and keeping the rotating speed of the air conditioner external fan unchanged;
and controlling the rotation speed of the air conditioner external fan to rise in response to the fact that the supercooling degree is smaller than the second preset supercooling degree.
In a second aspect, the present application provides a device for controlling a rotation speed of an external fan of an air conditioner, the device comprising:
the acquisition module is used for acquiring the running time of the air conditioner, the current rotating speed of a fan in the air conditioner and the indoor environment temperature;
the control module is used for responding that the running time of the air conditioner is greater than a first time threshold; and controlling the rotating speed of the air conditioner outer fan according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the air conditioner inner fan, so as to prolong the period of the air conditioner when the air conditioner is stopped when reaching the temperature.
In a third aspect, the present application provides an electronic device, including a processor and a memory, where the memory stores computer-readable instructions, and the computer-readable instructions are called by the processor and executed by the processor to implement the method for controlling the rotation speed of the external air conditioner fan according to the first aspect.
In a fourth aspect, the present application provides an air conditioner, including machine and air condensing units in the air conditioner, machine in the air conditioner with air condensing units signal connection, machine includes fan controller and air conditioner in the air conditioner, interior fan controller with fan electricity is connected in the air conditioner, air condensing units include the outer fan of air conditioner and like the third aspect electronic equipment, electronic equipment is outer fan controller, electronic equipment with the outer fan electricity of air conditioner is connected, interior fan controller with outer fan controller signal connection.
In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is read and executed by a processor, the method for controlling the rotation speed of the air conditioner external fan according to the first aspect is implemented.
In summary, due to the adoption of the technical scheme, the application at least comprises the following beneficial effects:
in the embodiment of the application, whether the current air conditioner is in a low-load operation state is judged by acquiring the operation time length of the air conditioner and comparing the acquired operation time length with a first time length threshold value, and the longer the operation time length of the air conditioner is, the more easily the air conditioner enters the low-load operation state. In detail, when the running time of the air conditioner is judged to be longer than a first time threshold, the indoor environment temperature and the current rotating speed of a fan in the air conditioner are obtained; and comparing the acquired indoor environment temperature with a preset temperature, and controlling the rotating speed of the air conditioner external fan according to the current rotating speed of the air conditioner internal fan. The effect of controlling the supercooling degree can be achieved by controlling the rotating speed of the air conditioner external fan, so that the phenomenon that the air conditioner enters low-load operation because the room temperature reaches the set temperature is avoided by changing the supercooling degree, the period of the air conditioner stopping at the temperature is prolonged, the frequency of the air conditioner stopping at the temperature during the air conditioner operation is reduced, the fluctuation of the environment temperature is eliminated as far as possible, and the comfort of the indoor temperature is improved.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly described below, and it should be apparent that the drawings in the following description only relate to some embodiments of the present application and are not limiting of the present application, wherein:
fig. 1 is a schematic flow chart of a method for controlling a rotation speed of an external air blower of an air conditioner according to the present application;
fig. 2 is a schematic flowchart of step S3 provided in the present application;
fig. 3 is a schematic structural diagram of a control device provided in the present application.
Description of the reference numerals:
1-an acquisition module; 2-a control module.
Detailed Description
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 a part of the embodiments of the present application, and not all of the 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.
In the description of the present application, it is to be understood that "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or including indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.
An embodiment of the present application provides an electronic device, which includes a processor and a memory. The processor and the memory are connected by a communication bus. The memory stores computer readable instructions. The processor may retrieve and execute the computer readable instructions from the memory to implement the method for controlling the speed of the air conditioner external fan as described hereinafter. Based on the same inventive concept, an embodiment of the present application further provides an air conditioner, which includes an air conditioner indoor unit and an air conditioner outdoor unit. The indoor unit of the air conditioner is in signal connection with the outdoor unit of the air conditioner. The indoor unit of the air conditioner comprises an inner fan of the air conditioner, an inner fan controller and a timer. The air conditioner inner fan is electrically connected with the inner fan controller, and the inner fan controller is used for acquiring and controlling the rotating speed of the air conditioner inner fan. The timer is used for calculating the accumulated running time of the air conditioner after the air conditioner is started. The air conditioner outdoor unit comprises an evaporator, an air conditioner outer fan, an outer fan controller, a first temperature sensing probe and a second temperature sensing probe. The external fan controller can be the electronic equipment and is used for controlling the rotating speed of the external fan of the air conditioner. The first temperature sensing probe is arranged at the tail end of the pipeline of the evaporator and used for detecting the temperature at the tail end of the evaporator; the second temperature sensing probe is arranged in the middle of the pipeline of the evaporator and used for detecting the temperature in the middle of the evaporator, and the difference value of the two temperatures is the supercooling degree of the air conditioner. An indoor temperature sensor is also arranged indoors and used for detecting the indoor environment temperature. The indoor temperature sensor can be arranged somewhere in the room, and also can be arranged on the air-conditioning shell. The timer and the indoor temperature sensor are in signal connection with the inner fan controller. The communication connection among the indoor temperature sensor, the timer and the inner fan controller can adopt wire connection, and can also adopt local area network or Bluetooth wireless connection.
In addition, the inner fan controller is in signal connection with the outer fan controller, so that the outer fan controller can control the rotating speed of the outer fan of the air conditioner according to information output by the inner fan controller. The signal connection can be realized in various ways, such as: the communication is carried out either directly through a wire connection, or through a wireless connection via a local area network, or through a bluetooth connection.
Referring to fig. 1, an embodiment of the present application further discloses a method for controlling a rotation speed of an external air blower of an air conditioner, which can be applied to the electronic device. The control method includes the following steps.
S1, obtaining the running time of an air conditioner, wherein the running time of the air conditioner is the accumulated running time of the air conditioner after the air conditioner is started;
in some embodiments, the operation time of the air conditioner is directly measured by a processor or a timer which is arranged in the air conditioner.
S2, responding to the condition that the running time of the air conditioner is longer than a first time threshold, and acquiring the indoor environment temperature and the current rotating speed of a fan in the air conditioner;
the first duration threshold may be preset. After the processor obtains the air conditioner operation duration, the obtained air conditioner operation duration may be compared with the first duration threshold. When the operation time of the air conditioner is longer than the first time threshold, the current operation time of the air conditioner is longer, the indoor environment temperature is probably close to the preset temperature, and at the moment, the processor acquires the indoor environment temperature and the current rotating speed of the fan in the air conditioner so as to judge whether the indoor environment temperature is close to the preset temperature. The indoor environment temperature is acquired by an indoor temperature sensor; the current rotating speed of an inner fan of the air conditioner is obtained by an inner fan controller; the air conditioner running time is obtained by a timer, and after the parameters are obtained, the parameters can be transmitted to the outer fan controller through the inner fan controller.
And S3, controlling the rotating speed of the air conditioner external fan according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the air conditioner internal fan so as to prolong the period of the air conditioner when the air conditioner is stopped at a temperature. The rotating speed of the air conditioner external fan is mainly controlled by an external fan controller. The inner fan controller inputs corresponding information into the outer fan controller, and the outer fan controller controls the rotating speed of the outer fan of the air conditioner according to the received information, so that the rotating speed of the outer fan of the air conditioner accords with the current operating condition of the air conditioner, and the period of the air conditioner stopping when reaching the temperature is prolonged.
The method mainly distinguishes different control methods according to different air conditioner capacity requirements, and improves reliability. Under the condition that the difference between the indoor environment temperature and the set temperature of the air conditioner is large, the current mode control is continued, and at the moment, the requirement on the air conditioner capacity is large, and the air conditioner cannot be stopped at a temperature; under the condition that the difference between the indoor environment temperature and the set temperature of the air conditioner is small, the rotating speed of an external fan of the air conditioner is adjusted to adjust the output of the refrigerating output and prolong the period of temperature stop.
Referring to fig. 2, the specific step of controlling the rotation speed of the air conditioner external fan according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotation speed of the air conditioner internal fan is as follows:
and S31, responding to the temperature difference value being smaller than the first temperature threshold value, controlling the rotating speed of the air conditioner external fan within a first rotating speed range or a second rotating speed range according to the current rotating speed of the air conditioner internal fan, wherein the upper limit value of the first rotating speed range is smaller than the lower limit value of the second rotating speed range.
In this embodiment, the first temperature threshold may be 4 ℃, that is, if the temperature difference is less than 4 ℃, it indicates that the current temperature difference is small, the indoor environment temperature is close to the preset temperature, and there is a possibility of entering a warm-up shutdown, and the rotation speed of the external fan needs to be controlled to prevent the air conditioner from entering a warm-up shutdown state. For the control of the rotating speed of the outer fan, the rotating speed of the outer fan needs to be controlled in a first rotating speed range or a second rotating speed range according to the rotating speed of the current inner fan of the air conditioner. In this embodiment, the air conditioner external fan has at least three rotation speed ranges, which are a first rotation speed range, a second rotation speed range, and a third rotation speed range. For the first rotating speed range, the first rotating speed range corresponds to a low wind gear of an air conditioner external fan; for the second rotating speed range, the second rotating speed range corresponds to the middle gear of the air conditioner external fan; and for the third rotating speed range, the third rotating speed range corresponds to a high wind gear of the air conditioner external fan.
And S32, responding to the temperature difference value being larger than the first temperature threshold and smaller than the second temperature threshold, controlling the rotating speed of the air conditioner outer fan within a second rotating speed range or a third rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the second rotating speed range is smaller than the lower limit value of the third rotating speed range.
In this embodiment, the second temperature threshold may be 8 ℃, and if the temperature difference is greater than 4 ℃ and less than 8 ℃, the rotation speed of the air conditioner external fan is controlled in the second rotation speed range or the third rotation speed range, that is, in the medium wind range or the high wind range, according to the current rotation speed of the air conditioner internal fan. Because the temperature difference value at this moment does not differ too much from the first temperature threshold value, and is not particularly close to the first temperature threshold value, the air conditioner at this moment is still in a regulation temperature, so that the indoor environment temperature approaches to the working state of the preset temperature as much as possible, and the rotating speed of the external fan needs to be controlled at a medium wind gear or a high wind gear, thereby avoiding the insufficient refrigerating capacity caused by the over-small rotating speed of the external fan and influencing the comfort of the environment temperature.
And S33, responding to the temperature difference value larger than the second temperature threshold value, and controlling the rotating speed of the air conditioner external fan in a third rotating speed range.
In this embodiment, if the temperature difference is greater than 8 ℃, it indicates that the difference between the internal environment temperature and the preset temperature is relatively far, and the air conditioner is still required to be in a continuous refrigeration working state, so that the required refrigeration demand capacity is relatively large. Therefore, no matter what rotating speed the indoor unit of the air conditioner is, the rotating speed of the outdoor unit of the air conditioner is controlled within the third rotating speed range, namely, the high wind level, more refrigerating capacity is provided, the indoor environment temperature is accelerated to approach the preset temperature, and the refrigerating efficiency is improved.
For the step of controlling the rotating speed of the air conditioner external fan in the first rotating speed range or the second rotating speed range according to the current rotating speed of the air conditioner internal fan when the response temperature difference value is smaller than the first temperature threshold value, the step comprises the following steps:
and controlling the rotating speed of the air conditioner outer fan within a second rotating speed range in response to the fact that the temperature difference value is smaller than the first temperature threshold value and the current rotating speed of the air conditioner inner fan is equal to or larger than the preset rotating speed.
Because the temperature difference is smaller than the first temperature threshold value, namely, smaller than 4 ℃, it is indicated that the current indoor environment temperature is closer to the preset temperature, and the preset temperature is basically reached, and in order to avoid the air conditioner from stopping due to temperature, the air conditioner external fan needs to be ensured to be in continuous rotation. However, since the indoor ambient temperature is already close to the preset temperature, the air conditioner external fan cannot be set to the high gear. Specifically, the current rotating speed of the fan in the air conditioner is determined. If the current rotating speed of the air conditioner inner fan is equal to or greater than the preset rotating speed, the rotating speed of the air conditioner outer fan is controlled in a second rotating speed range, namely a middle gear, so that the problems that the rotating speed difference between the air conditioner inner fan and the air conditioner outer fan is too large, the rotating speed of the air conditioner outer fan is too small, the sent refrigerating capacity is insufficient to maintain the indoor environment temperature to be close to the preset temperature, the environment temperature fluctuates frequently, and the user experience is influenced are avoided; meanwhile, the air conditioner external fan can be prevented from reaching the temperature and stopping.
And in response to the temperature difference value being smaller than the first temperature threshold value and the current rotating speed of the air conditioner inner fan being smaller than the preset rotating speed, controlling the rotating speed of the air conditioner outer fan within a first rotating speed range.
Similarly, since the temperature difference is smaller than the first temperature threshold, it indicates that the current indoor ambient temperature is closer to the preset temperature, and the preset temperature is substantially reached. And according to the fact that the current rotating speed of the fan in the air conditioner is smaller than the preset rotating speed at the moment, the current indoor environment temperature is maintained, the indoor environment temperature is enabled to be close to or the same as the preset temperature for a long time, and the required refrigerating capacity is smaller than or equal to the preset rotating speed of the fan in the air conditioner. Therefore, the rotating speed of the air conditioner outer fan at the moment is controlled in a first rotating speed range, namely a low wind gear, the requirement for refrigerating capacity can be met, and meanwhile, the air conditioner outer fan can be prevented from being stopped due to temperature. The rotating speed of the fan outside the air conditioner is controlled according to the relation between the temperature difference value and the temperature threshold value and the current rotating speed of the fan in the air conditioner, so that the period of the air conditioner for stopping at a warm state can be prolonged as far as possible, energy can be saved, and the waste effect of refrigerating capacity can be reduced.
In the step of controlling the rotating speed of the air conditioner outer fan in the second rotating speed range or the third rotating speed range according to the current rotating speed of the air conditioner inner fan in response to the temperature difference value being greater than the first temperature threshold and smaller than the second temperature threshold, the method comprises the following steps:
and controlling the rotating speed of the air conditioner outer fan within a third rotating speed range in response to the temperature difference value being larger than or equal to the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan being equal to or larger than the preset rotating speed.
Because the temperature difference value is between the first temperature threshold and the second temperature threshold or equal to the first temperature threshold, it indicates that there is a certain distance between the current indoor ambient temperature and the preset temperature, and more refrigerating capacity needs to be provided to change the indoor ambient temperature to make it approach the preset temperature. And because the rotating speed of the fan in the current air conditioner is equal to or greater than the preset rotating speed, the current required refrigerating capacity is large. Therefore, the rotating speed of the air conditioner outer fan is controlled to be in a third rotating speed range, namely a high wind gear, so that more refrigerating capacity is provided, and the indoor environment temperature is enabled to be close to the preset temperature quickly. At this time, of course, because the indoor ambient temperature has not reached the preset temperature accessory, the problem of shutdown when reaching the temperature does not exist.
And when the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan is smaller than the preset rotating speed, controlling the rotating speed of the air conditioner outer fan within a second rotating speed range.
Similarly, the current rotating speed of the fan in the air conditioner is smaller than the preset rotating speed, which shows that the current indoor refrigerating capacity requirement is reduced to some extent, so that the rotating speed of the fan outside the air conditioner is controlled in a second rotating speed range, namely a middle wind gear. The air conditioner has the advantages that sufficient refrigerating capacity can be provided, indoor environment temperature is reduced as fast as possible to be close to preset temperature, and meanwhile energy waste caused by the fact that the rotating speed of an outer air fan of the air conditioner is too fast is avoided.
It should be noted that the first temperature threshold indicated above is 4 ℃, the second temperature threshold is 8 ℃, which is only an example and is not a limitation of the temperature threshold, and both the first temperature threshold and the second temperature threshold can be freely set according to practical situations.
Having described the operation process of the air conditioner external air blower when the air conditioner operation time length is greater than the first time length threshold, the following description is made of the operation process of the air conditioner external air blower when the air conditioner operation time length is less than or equal to the first time length threshold:
specifically, in response to the fact that the running time of the air conditioner is smaller than or equal to a first time threshold, the supercooling degree of the air conditioner is obtained every preset time, and the rotating speed of an air conditioner external fan is controlled according to the relation between the obtained supercooling degree and the preset supercooling degree. Here, the first time threshold is set to 2 hours, and the preset time is set to 5 minutes, because the indoor environment temperature has substantially approached the preset temperature after the general air conditioner is started for 2 hours, and the air conditioner is in the state of being about to reach a warm shutdown, at this time, the adjustment of the rotation speed of the external fan of the air conditioner is mainly based on the relationship between the indoor environment temperature and the preset temperature. In other embodiments, both the first time threshold and the preset time may be adjusted according to actual conditions. Generally, after the configuration of the air conditioner is completed, it is difficult to change the corresponding supercooling degree except for controlling the rotation speed of the external fan of the air conditioner. Specifically, the larger the rotating speed of the external fan is, the larger the heat exchange amount of the condenser is, the larger the supercooling degree is, and the larger the refrigerating capacity is. However, it cannot be said that the rotation speed of the outer fan is increased without limit in order to increase the cooling capacity, because a higher rotation speed means higher power, and for energy saving, we need to ensure that the provided cooling capacity is sufficient on the premise of saving energy as much as possible.
The embodiment mainly utilizes the size relation between the supercooling degree and the preset supercooling degree to judge the required size of the refrigerating capacity at the moment, and then achieves the purpose of adjusting the supercooling degree by controlling the rotating speed of the air conditioner external fan.
Wherein, according to the relation between super-cooling degree and the predetermined super-cooling degree of acquireing, the rotational speed of the outer fan of control air conditioner includes:
and controlling the rotating speed of the air conditioner external fan to be reduced in response to the fact that the supercooling degree is larger than or equal to the first preset supercooling degree.
When the supercooling degree is greater than or equal to the first preset supercooling degree, the refrigerating capacity at the moment is enough for the indoor environment temperature at the moment and even exceeds the currently required refrigerating capacity. Therefore, in order to avoid the waste caused by excessive refrigerating capacity, the rotating speed of the air conditioner external fan is controlled to be reduced so as to reduce the output of the refrigerating capacity. And judging once every preset time, and if the supercooling degree is still greater than or equal to the first preset supercooling degree, continuously controlling the rotating speed of the external fan to be reduced.
And responding to the condition that the supercooling degree is more than or equal to the second preset supercooling degree and less than the first preset supercooling degree, and keeping the rotating speed of the air conditioner external fan unchanged.
When the supercooling degree is greater than or equal to the second preset supercooling degree and smaller than the first preset supercooling degree, the refrigerating capacity is suitable for the indoor environment temperature at the moment, and the rotating speed of the current air conditioner external fan is maintained. Similarly, the determination is performed every predetermined time period.
And controlling the rotation speed of the air conditioner external fan to rise in response to the fact that the supercooling degree is smaller than the second preset supercooling degree.
When the supercooling degree is smaller than the second preset supercooling degree, the supercooling degree needs to be increased continuously to enable the indoor environment temperature to approach the preset temperature, which indicates that the refrigerating capacity is insufficient compared with the indoor environment temperature at the moment. Therefore, when the supercooling degree is smaller than the second preset supercooling degree, the rotating speed of the air conditioner external fan is controlled to be increased. And judging the relation between the primary supercooling degree and the preset supercooling degree every 5 minutes, and if the supercooling degree is still less than the second preset supercooling degree, continuously increasing the rotating speed of the air conditioner external fan.
In some embodiments, a second duration threshold is also preset in the memory, and the second duration threshold is smaller than the first duration threshold. The second time length threshold value is used as a time node of the air conditioner for quick refrigeration, and the first time length threshold value is used as a time node of the indoor environment temperature close to the preset temperature. Specifically, in this embodiment, the time node at which the indoor ambient temperature is close to the preset temperature is 2 hours, and the second duration threshold is 0.5 hour. In other words, within 0.5 hour after the air conditioner is started, the rotating speed of the outer fan of the air conditioner is controlled to be in a third rotating speed range, namely a high wind level, so that the air conditioner can rapidly refrigerate the indoor environment temperature at the moment; the rotating speed of the air conditioner external fan is controlled according to the relation between the supercooling degree and the preset supercooling degree at the moment between 0.5 hour and 2 hours when the air conditioner is started, so that the energy consumption waste caused by overhigh rotating speed of the air conditioner external fan is avoided while the comfort of the indoor environment temperature is ensured.
It should be noted that, in some embodiments, the control method of the rotation speed of the external air blower of the air conditioner may also be implemented by matching the internal air blower controller with the external air blower controller, for example, obtaining the operation duration of the air conditioner, the indoor environment temperature, and the current rotation speed of the internal air blower of the air conditioner; comparing the air conditioner operation time with a first time threshold; subtracting the indoor environment temperature from the preset temperature; comparing the temperature difference to first and second temperature thresholds; comparing the current rotating speed of the inner fan with a preset rotating speed; the steps of obtaining the supercooling degree, comparing the supercooling degree with the preset supercooling degree and the like can be completed by the inner fan controller, then sending a control instruction to the outer fan controller, and controlling the rotating speed of the air-conditioning outer fan by the outer fan controller based on the control instruction.
Referring to fig. 3, based on the same inventive concept, an embodiment of the present application further provides a control device for controlling a rotation speed of an external air blower of an air conditioner, which is applied to the electronic device. The apparatus may include:
the system comprises an acquisition module 1, a control module and a control module, wherein the acquisition module 1 is used for acquiring the running time of the air conditioner, the current rotating speed of a fan in the air conditioner and the indoor environment temperature;
the control module 2 is used for responding that the running time of the air conditioner is greater than a first time threshold; and controlling the rotating speed of the air conditioner outer fan according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the air conditioner inner fan so as to prolong the period of the air conditioner shutdown when the air conditioner reaches the temperature.
In an embodiment, the control module 2 is specifically configured to control the rotation speed of the air conditioner external fan within a first rotation speed range or a second rotation speed range according to the current rotation speed of the air conditioner internal fan in response to the temperature difference being smaller than a first temperature threshold, where an upper limit of the first rotation speed range is smaller than a lower limit of the second rotation speed range; responding to the temperature difference value being larger than the first temperature threshold and smaller than a second temperature threshold, and controlling the rotating speed of the air conditioner outer fan within a second rotating speed range or a third rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the second rotating speed range is smaller than the lower limit value of the third rotating speed range; and responding to the temperature difference value being larger than the second temperature threshold value, and controlling the rotating speed of the air conditioner external fan in the third rotating speed range.
In an embodiment, the control module 2 is further configured to control the rotation speed of the air conditioner external fan within the second rotation speed range in response to that the temperature difference is smaller than the first temperature threshold and that the current rotation speed of the air conditioner internal fan is equal to or greater than a preset rotation speed; and in response to the fact that the temperature difference value is smaller than the first temperature threshold value and the current rotating speed of the air conditioner inner fan is smaller than the preset rotating speed, controlling the rotating speed of the air conditioner outer fan within the first rotating speed range.
In one embodiment, the control module 2 is further configured to control the rotation speed of the air conditioner external fan within the third rotation speed range in response to that the temperature difference is greater than the first temperature threshold and less than the second temperature threshold and that the current rotation speed of the air conditioner internal fan is equal to or greater than a preset rotation speed; and when the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan is smaller than the preset rotating speed, controlling the rotating speed of the air conditioner outer fan within the second rotating speed range.
In an embodiment, the control module 2 is further configured to, in response to that the air conditioner operation time length is less than or equal to the first time length threshold, obtain a supercooling degree of the air conditioner every preset time length, and control the rotation speed of the air conditioner external fan according to a relationship between the supercooling degree and the preset supercooling degree.
In one embodiment, the control module 2 is specifically configured to control the rotation speed of the air conditioner external fan to decrease in response to the supercooling degree being greater than or equal to a first preset supercooling degree; responding to the fact that the supercooling degree is larger than or equal to a second preset supercooling degree and smaller than the first preset supercooling degree, and keeping the rotating speed of the air conditioner external fan unchanged; and controlling the rotation speed of the air conditioner external fan to increase in response to the supercooling degree being smaller than the second preset supercooling degree.
It should be noted that the control device for the rotating speed of the external air blower of the air conditioner provided in the embodiment of the present application corresponds to the foregoing control method, and for brevity of the description, the same or corresponding parts may refer to the foregoing embodiment of the control method, and are not described herein again.
It will be appreciated that the apparatus described hereinbefore is merely an example. The included modules may represent modules, segments, or portions of code that contain one or more executable instructions for implementing the specified logical functions, which may be implemented by special purpose hardware-based systems that perform the specified functions or acts, or which may be implemented by combinations of special purpose hardware and computer instructions.
Based on the same inventive concept, the application further provides a computer-readable storage medium, in which the foregoing method or apparatus may be stored in the form of a computer program, and when the computer program is read and executed by a processor, the method for controlling the rotating speed of the external fan of the air conditioner is implemented.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered as illustrative only and not limiting of the application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
In some embodiments, the numerical parameters set forth in the specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit-preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
For each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, the entire contents of which are hereby incorporated by reference into this application, except for application history documents that are inconsistent with or conflict with the contents of this application, and except for documents that are currently or later become incorporated into this application as though fully set forth in the claims below. It is noted that the descriptions, definitions and/or use of terms in this application shall control if they are inconsistent or contrary to the present disclosure.

Claims (10)

1. A control method for the rotating speed of an external fan of an air conditioner is characterized by comprising the following steps:
acquiring the running time of an air conditioner, wherein the running time of the air conditioner is the accumulated running time of the air conditioner after the air conditioner is started;
responding to the condition that the running time of the air conditioner is longer than a first time threshold, and acquiring the indoor environment temperature and the current rotating speed of a fan in the air conditioner;
and controlling the rotating speed of the fan outside the air conditioner according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the fan in the air conditioner so as to prolong the period of the air conditioner when the air conditioner is stopped when the temperature is reached.
2. The method for controlling the rotation speed of the air conditioner external fan according to claim 1, wherein the controlling the rotation speed of the air conditioner external fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current rotation speed of the air conditioner internal fan comprises:
responding to the temperature difference value being smaller than a first temperature threshold value, and controlling the rotating speed of the air conditioner outer fan within a first rotating speed range or a second rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the first rotating speed range is smaller than the lower limit value of the second rotating speed range;
responding to the temperature difference value being larger than the first temperature threshold and smaller than a second temperature threshold, and controlling the rotating speed of the air conditioner outer fan within a second rotating speed range or a third rotating speed range according to the current rotating speed of the air conditioner inner fan, wherein the upper limit value of the second rotating speed range is smaller than the lower limit value of the third rotating speed range;
and controlling the rotating speed of the air conditioner external fan in the third rotating speed range in response to the temperature difference value being larger than the second temperature threshold value.
3. The method for controlling the rotation speed of the air conditioner external fan according to claim 2, wherein the controlling the rotation speed of the air conditioner external fan in a first rotation speed range or a second rotation speed range according to the current rotation speed of the air conditioner internal fan in response to the temperature difference being less than a first temperature threshold value comprises:
in response to the temperature difference value being smaller than the first temperature threshold value and the current rotating speed of the air conditioner internal fan being equal to or larger than a preset rotating speed, controlling the rotating speed of the air conditioner external fan within the second rotating speed range;
and controlling the rotating speed of the air conditioner external fan within the first rotating speed range in response to the temperature difference value being smaller than the first temperature threshold value and the current rotating speed of the air conditioner internal fan being smaller than the preset rotating speed.
4. The method for controlling the rotation speed of the air conditioner external fan according to claim 2, wherein the controlling the rotation speed of the air conditioner external fan in the second rotation speed range or a third rotation speed range according to the current rotation speed of the air conditioner internal fan in response to the temperature difference being greater than the first temperature threshold and less than a second temperature threshold comprises:
in response to that the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan is equal to or larger than a preset rotating speed, controlling the rotating speed of the air conditioner outer fan within the third rotating speed range;
and when the temperature difference value is larger than the first temperature threshold value and smaller than the second temperature threshold value and the current rotating speed of the air conditioner inner fan is smaller than the preset rotating speed, controlling the rotating speed of the air conditioner outer fan within the second rotating speed range.
5. The method for controlling the rotating speed of the air conditioner external fan according to claim 1, further comprising the following steps: and responding to the condition that the running time of the air conditioner is less than or equal to the first time threshold, acquiring the supercooling degree of the air conditioner every preset time, and controlling the rotating speed of the air conditioner external fan according to the relation between the supercooling degree and the preset supercooling degree.
6. The method for controlling the rotating speed of the air conditioner external fan according to the claim 5, wherein the controlling the rotating speed of the air conditioner external fan according to the obtained relationship between the supercooling degree and the preset supercooling degree comprises:
responding to the supercooling degree larger than or equal to a first preset supercooling degree, and controlling the rotating speed of the air conditioner external fan to be reduced;
responding to the fact that the supercooling degree is larger than or equal to a second preset supercooling degree and smaller than the first preset supercooling degree, and keeping the rotating speed of the air conditioner external fan unchanged;
and controlling the rotation speed of the air conditioner external fan to increase in response to the supercooling degree being smaller than the second preset supercooling degree.
7. A control device for the rotation speed of an external fan of an air conditioner is characterized by comprising:
the acquisition module is used for acquiring the running time of the air conditioner, the current rotating speed of a fan in the air conditioner and the indoor environment temperature;
the control module is used for responding that the running time of the air conditioner is greater than a first time threshold; and controlling the rotating speed of the air conditioner outer fan according to the temperature difference between the indoor environment temperature and the preset temperature and the current rotating speed of the air conditioner inner fan so as to prolong the period of the air conditioner when the air conditioner is stopped when reaching the temperature.
8. An electronic device comprising a processor and a memory, the memory having stored therein computer-readable instructions that, when invoked and executed by the processor, implement the method of any one of claims 1-6.
9. An air conditioner, characterized in that, includes indoor set of air conditioner and outdoor set of air conditioner, the indoor set of air conditioner with the outdoor set of air conditioner signal connection, the indoor set of air conditioner includes interior fan controller and air conditioner interior fan, interior fan controller with the interior fan electricity of air conditioner is connected, the outdoor set of air conditioner includes air conditioner outer fan and the electronic equipment of claim 8, the electronic equipment is outer fan controller, the electronic equipment with the outer fan electricity of air conditioner is connected, interior fan controller with outer fan controller signal connection.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the method according to any one of claims 1-6.
CN202210970498.9A 2022-08-12 2022-08-12 Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium Pending CN115371218A (en)

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CN202210970498.9A CN115371218A (en) 2022-08-12 2022-08-12 Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium

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CN202210970498.9A CN115371218A (en) 2022-08-12 2022-08-12 Method and device for controlling rotating speed of air conditioner external fan, air conditioner and storage medium

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116123638A (en) * 2023-03-29 2023-05-16 浙江中广电器集团股份有限公司 Heat pump air conditioner and operation control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116123638A (en) * 2023-03-29 2023-05-16 浙江中广电器集团股份有限公司 Heat pump air conditioner and operation control method thereof
CN116123638B (en) * 2023-03-29 2023-12-19 浙江中广电器集团股份有限公司 Heat pump air conditioner and operation control method thereof

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