CN113294897A - Rotation speed control method of air conditioner, air conditioner and storage medium - Google Patents
Rotation speed control method of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN113294897A CN113294897A CN202110716735.4A CN202110716735A CN113294897A CN 113294897 A CN113294897 A CN 113294897A CN 202110716735 A CN202110716735 A CN 202110716735A CN 113294897 A CN113294897 A CN 113294897A
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
Abstract
The application discloses a rotating speed control method of an air conditioner, the air conditioner and a storage medium, wherein the rotating speed control method of the air conditioner comprises the following steps: acquiring a load parameter of an air conditioner; and adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameters, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameters is larger. Because the air conditioner has different demands on the refrigerating capacity under different loads, the rotating speed of the outdoor fan of the air conditioner is adjusted based on the load demand of the air conditioner, and the refrigerating capacity demand of the air conditioner is met.
Description
Technical Field
The present disclosure relates to the field of air conditioners, and particularly to a method for controlling a rotation speed of an air conditioner, and a storage medium.
Background
The air conditioning system mainly comprises four modules, namely a compression module, a condenser module, a throttling module and an evaporation module, the air-cooled condensation module has an important function of taking away system heat, and the main realization mode is that a motor drives a wind wheel to enable wind to pass through a heat exchanger and exchange heat with the heat exchanger to take away the heat of the air conditioning system. The wind wheel therefore plays an important role in the condensation module. At present, when the air conditioner operates in the cooling mode, a target temperature and a rotating speed are generally set, and the air conditioner always operates at the set rotating speed before the indoor environment temperature reaches the target temperature. Because the difference in temperature of the indoor ambient temperature and the air-out temperature of the air conditioner can be gradually reduced in the operation process of the air conditioner, and the different rotating speed refrigeration effects corresponding to different differences in temperature are different, the fan adopts fixed rotating speed operation to influence the refrigeration effect of the air conditioner.
Disclosure of Invention
The embodiment of the application aims to solve the problem that the refrigerating effect of the air conditioner is influenced when the fan operates at a fixed rotating speed by providing the rotating speed control method of the air conditioner, the air conditioner and the storage medium.
To achieve the above object, an aspect of the present application provides a method for controlling a rotation speed of an air conditioner, the method comprising:
acquiring a load parameter of an air conditioner;
and adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameter, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameter is increased.
Optionally, the step of adjusting the rotation speed of the outdoor fan of the air conditioner according to the load parameter includes:
determining a first difference between an indoor temperature and a set temperature and a second difference between an outdoor temperature and an outdoor coil temperature, wherein the load parameters comprise the first difference and the second difference;
and adjusting the rotating speed of the outdoor fan according to the first difference and/or the second difference.
Optionally, the step of adjusting the rotation speed of the outdoor fan according to the first difference and/or the second difference includes:
when the first difference value is smaller than or equal to a first preset value and the second difference value is smaller than or equal to a second preset value, adjusting the rotating speed of the outdoor fan to be a first rotating speed;
when the first difference is larger than a first preset value and/or the second difference is larger than a second preset value, the rotating speed of the outdoor fan is adjusted to be a second rotating speed, wherein the first rotating speed is smaller than the second rotating speed.
Optionally, after the step of adjusting the rotation speed of the outdoor fan to the first rotation speed, the method includes:
determining a first difference between the indoor temperature and the set temperature, and a second difference between the outdoor temperature and the outdoor coil temperature;
and when the first difference value and the second difference value are both reduced, reducing the rotating speed of the outdoor fan.
Optionally, after the step of decreasing the rotation speed of the outdoor fan when both the first difference and the second difference are decreased, the method further includes:
determining a second difference between the outdoor temperature and the outdoor coil temperature;
and when the second difference value is smaller than or equal to a third preset value, reducing the rotating speed of the outdoor fan.
Optionally, when the second difference is less than or equal to a third preset value, the step of reducing the rotation speed of the outdoor fan includes:
and when the second difference value is smaller than or equal to a third preset value, reducing the rotating speed of the first fan in the outdoor fan to a third rotating speed, and controlling the second fan in the outdoor fan to stop.
Optionally, the step of obtaining the load parameter of the air conditioner is preceded by:
acquiring the running time of the air conditioner in a refrigeration mode;
and when the running time reaches the preset time, executing the step of acquiring the load parameter of the air conditioner.
Optionally, the step of adjusting the rotation speed of the outdoor fan according to the first difference and/or the second difference further includes:
comparing the currently acquired first difference with the last acquired first difference, and comparing the currently acquired second difference with the last acquired second difference, wherein the first difference and the second difference are acquired in real time;
and when the currently acquired first difference is smaller than the last acquired first difference and the currently acquired second difference is smaller than the last acquired second difference, reducing the rotating speed of the outdoor fan.
In addition, in order to achieve the above object, another aspect of the present application further provides an air conditioner, where the air conditioner includes a memory, a processor, and a rotation speed control program stored in the memory and running on the processor, and the processor implements the steps of the method for controlling the rotation speed of the air conditioner when executing the rotation speed control program of the air conditioner.
In order to achieve the above object, another aspect of the present application provides a storage medium having a rotational speed control program of an air conditioner stored thereon, wherein the rotational speed control program of the air conditioner, when executed by a processor, implements the steps of the rotational speed control method of the air conditioner as described above.
The application provides a rotating speed control method of an air conditioner, which comprises the steps of obtaining a load parameter of the air conditioner; and adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameters, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameters is larger. Because the air conditioner has different demands on the refrigerating capacity under different loads, the rotating speed of the outdoor fan of the air conditioner is adjusted based on the load demand of the air conditioner, and the refrigerating capacity demand of the air conditioner is met.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the air conditioner system of the present application;
FIG. 3 is a schematic flow chart illustrating a first embodiment of a method for controlling a rotational speed of an air conditioner according to the present application;
fig. 4 is a schematic flow chart illustrating a process of adjusting the rotation speed of the outdoor fan according to the first difference and/or the second difference in the method for controlling the rotation speed of the air conditioner according to the present application;
fig. 5 is a schematic operation flow chart of the method for controlling the rotation speed of the air conditioner according to the present application.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Since the air conditioner is generally set to a target temperature and a rotation speed when operating in the cooling mode, the air conditioner is always operated at the set rotation speed until the indoor ambient temperature reaches the target temperature. However, the temperature difference between the indoor environment temperature and the air outlet temperature of the air conditioner can be gradually reduced in the operation process of the air conditioner, and the different rotating speed refrigeration effects corresponding to the different temperature differences are different, so that the refrigeration effect of the air conditioner can be influenced by the fan which is in fixed rotating speed operation. And this application is through the load parameter who obtains the air conditioner, according to the rotational speed of the outdoor fan of load parameter adjustment air conditioner, because the air conditioner has different demands to the refrigerating output under different loads, so, the rotational speed of the outdoor fan of air conditioner is adjusted based on the load demand of air conditioner, has satisfied the refrigerating output demand of air conditioner.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present application.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 does not constitute a limitation of the terminal device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer-readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a rotation speed control program of an air conditioner.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for data communication with the background server; the user interface 1003 is mainly used for data communication with a client (user side); when the terminal is an air conditioner, the processor 1001 may be configured to call a rotation speed control program of the air conditioner in the memory 1005, and perform the following operations:
acquiring a load parameter of an air conditioner;
and adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameter, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameter is increased.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an air conditioner system according to the present application, and as can be seen from fig. 2, the air conditioner 5 system according to the present application includes a compressor 1, a four-way valve 2, a first fan 3, a second fan 4, an outdoor heat exchanger 5, a throttling component 6, an indoor fan 7, and an indoor heat exchanger 8.
It should be noted that at least one opposite-rotation fan set is arranged at an air outlet of an outdoor fan of the air conditioner, and the opposite-rotation fan set comprises a first fan and a second fan which rotates oppositely to the first fan. The counter-rotating fans are connected in series by two fans (the number of matched motors and blades and the installation angle are the same or different), the first fan and the second fan are closely arranged together, the rotation directions of the first fan and the second fan are opposite, airflow is sent out by the first fan and then is scattered around, and the airflow is basically changed into axial airflow under the action of the second fan, namely the airflow flows out axially as much as possible. Therefore, the total wind pressure generated by the fan which runs in series with two opposite rotary stages is 2 times larger than that of the single-stage fan. Secondly, two fans can be operated at the same speed, and also can be operated at different speeds. The rotating speed of the first fan is recorded as Fr1, and the general operation range is 0-1000 revolutions; the rotation speed of the second fan is Fr2, and the general operation range is 0-1000 revolutions.
The air inlet sides of the indoor unit and the outdoor unit of the air conditioner are respectively provided with a temperature sensor which is used for detecting the indoor temperature and the outdoor temperature of the air conditioner. Meanwhile, temperature sensors are respectively arranged at the evaporating coil and the condensing coil of the air conditioner and are respectively used for detecting the temperature of the evaporating coil and the temperature of the condensing coil of the air conditioner.
Referring to fig. 3, fig. 3 is a schematic flow chart illustrating a first embodiment of a method for controlling a rotational speed of an air conditioner according to the present application.
The present embodiment provides an embodiment of a method for controlling a rotation speed of an air conditioner, and it should be noted that, although a logic sequence is shown in the flowchart, in some cases, the steps shown or described may be executed in a different sequence from the sequence here.
The rotating speed control method of the air conditioner comprises the following steps:
step S10, acquiring the load parameter of the air conditioner;
it should be noted that the air conditioner has different requirements for the refrigerating capacity under different loads, and the rotating speeds of the outdoor fans corresponding to different refrigerating requirements are different, so that the rotating speed of the outdoor fan is adjusted based on the load requirements of the air conditioner, the refrigerating requirements of users, such as large refrigerating requirements and small refrigerating requirements, are met, and the energy efficiency of the air conditioner is improved.
In this embodiment, when the air conditioner operates in the cooling mode or the dehumidifying mode, the rotation speed of the outdoor fan is the maximum rotation speed, for example, the rotation speeds of the first fan and the second fan are both 800rpm, when the cooling or dehumidifying operation reaches a certain time (for example, 5min), the operation parameters of the air conditioner are obtained, and the current load parameters of the air conditioner are determined according to the operation parameters. The operation parameters of the air conditioner comprise the operation power, the refrigerating capacity and the heating capacity of the air conditioner, and the operation power can be acquired through electric quantity monitoring equipment, such as a multi-loop intelligent electric meter. Meanwhile, heat meters can be arranged on a chilled water main pipeline and a cooling water main pipeline of the air conditioner to detect the chilled water heat and the cooling water heat in unit time, so that the refrigerating capacity and the heat dissipation capacity of the air conditioner are determined. The air conditioner can calculate and process the operation parameters through an external diagnostic device or a control device of the air conditioner to finally obtain the load parameters of the air conditioner, wherein the load parameters comprise a refrigeration coefficient, a cooling water conveying coefficient, a chilled water conveying coefficient, a temperature coefficient of the air conditioner and the like.
Step S20, adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameter, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameter is increased
It should be noted that, as the time for the user to use the air conditioner is longer, the load required by the air conditioner is also reduced, and if the outdoor fan is continuously operated at a high rotation speed, not only the energy efficiency ratio of the air conditioner is affected, but also the refrigerant quantity caused by the supercooling of the condenser outlet is increased, which may adversely affect the service life of the compressor. Meanwhile, if the outdoor fan runs under a full-load state for a long time, the service life of the outdoor motor can be influenced, and the fatigue aging of the outdoor fan blades can be accelerated. Therefore, the rotation speed of the outdoor fan needs to be adjusted based on the load change of the air conditioner to meet different cooling capacity requirements and prolong the service life of the air conditioner and the outdoor fan.
The load change of the air conditioner can be determined based on the load parameters, therefore, the rotating speed of the outdoor fan can be directly adjusted in real time based on the load parameters of the air conditioner, the larger the load is, the more the required refrigerating capacity is, the larger the rotating speed of the corresponding outdoor fan is, the outdoor fan is a counter-rotating fan which comprises a first fan and a second fan which runs in a counter-rotating mode with the first fan, the first fan and the second fan can rotate simultaneously or independently, the rotating number of the specific fans can be determined according to the load parameters, and limitation is not made herein. In an embodiment, an indoor temperature Ti (e.g., an indoor unit return air inlet temperature), an outdoor temperature To (e.g., an outdoor unit air inlet temperature) and an outdoor coil temperature Tc (condensing temperature) of the air conditioner are obtained through a temperature sensor, and meanwhile, an indoor temperature Ts preset by a user is obtained, where the user may preset the indoor temperature of the air conditioner through a remote controller or a mobile phone APP, which is not limited herein. Calculating the difference between the indoor temperature Ti and the set indoor temperature Ts To obtain Ti-Ts, recording the Ti-Ts as a first difference, and calculating the difference between the outdoor coil temperature Tc and the outdoor temperature To obtain Tc-To, recording the Tc-To as a second difference. Further, the relationship between (Ti-Ts) and Ni, which is an indoor temperature correction coefficient and is generally set To-3 ℃ To +3 ℃, and the relationship between (Tc-To) and Nc are determined respectively; nc is the outdoor condensation temperature coefficient, and is generally 5 to 10 ℃. And adjusting the rotating speed of the outdoor fan of the air conditioner based on the relation between (Ti-Ts) and Ni and the relation between (Tc-To) and Nc.
In this embodiment, when the air conditioner performs refrigeration or dehumidification, the load parameter of the air conditioner is obtained, the demands of the air conditioner on the refrigeration capacity under different loads are determined based on the load parameter, and the rotating speed of the outdoor fan is adjusted based on the demands of the air conditioner on the refrigeration capacity, so that the demands of the air conditioner on the refrigeration capacity under different loads are met.
Further, referring to fig. 4, a second embodiment of the method for controlling the rotation speed of the air conditioner of the present application is proposed.
The second embodiment of the rotational speed control method of an air conditioner is different from the first embodiment in that the step of adjusting the rotational speed of the outdoor fan according to the first difference and/or the second difference comprises:
step S21, when the first difference is smaller than or equal to a first preset value and the second difference is smaller than or equal to a second preset value, adjusting the rotating speed of the outdoor fan to a first rotating speed;
and step S22, when the first difference is greater than a first preset value and/or the second difference is greater than a second preset value, adjusting the rotating speed of the outdoor fan to a second rotating speed, wherein the first rotating speed is less than the second rotating speed.
In the embodiment, when the air conditioner satisfies Ti-Ts ≦ Ni and Tc-To ≦ Nc, the control of the rotation speed of the outdoor fan is entered, and the rotation speeds of the first fan and the second fan are adjusted To the first rotation speed (for example, 80% of the maximum rotation speed of the fans). For example, the maximum rotation speeds of Fr1 and Fr2 are 800rpm, Ti 24 ℃, Ts 26 ℃, Tc 42 ℃, To 35 ℃, Ni 1, and Nc 8. When the Ti-Ts is less than or equal to Ni, namely the Ti-Ts is 24-26-2 which is less than 1, the current indoor temperature is lower than the set indoor temperature, namely the current indoor temperature reaches the set temperature of the user; when Tc-To is less than Nc, namely Tc-To is 42-35-7 is less than 8, the condensing temperature is higher than the outdoor temperature, and if the difference between the condensing temperature and the outdoor temperature is smaller, the air conditioner system is not operated under high load (the operation frequency is not high). Therefore, when both Ti-Ts. ltoreq.Ni and Tc-To. ltoreq.Nc are satisfied, indicating that the air conditioner system does not need To operate at a high load, the rotational speeds Fr1 and Fr2 are controlled To 80% of the maximum rotational speed To reduce the compressor power. When both of Ti-Ts. ltoreq.Ni and Tc-To. ltoreq.Nc are not simultaneously established, i.e., Ti-Ts. ltoreq.Ni and Tc-To > Nc, or Ti-Ts > Ni and Tc-To. ltoreq.Nc, or Ti-Ts > Ni and Tc-To > Nc, the above three cases indicate that the air conditioner is in high-load operation, and at this time, it is necessary To control Fr1 and Fr2 To operate at the maximum rotation speed (e.g., 800 rpm). The second rotation speed refers to a maximum rotation speed of the wind wheel, such as 800rpm, and the first rotation speed is 80% of the maximum rotation speed, that is, 640rpm, it should be noted that the first rotation speed and the second rotation speed may be determined according to equipment information (such as a model and a name) of the air conditioner, or according to a user requirement, which is not limited herein.
In one embodiment, since the air conditioner operates in the cooling mode, the temperature difference between the indoor temperature and the set indoor temperature is gradually reduced, and the demand of the indoor cooling capacity is reduced in the process of reducing the temperature difference, at this time, the rotating speed of the outdoor fan needs to be adjusted to reduce the current cooling capacity. The air conditioner can detect the indoor and outdoor temperatures and the outdoor coil temperature in real time (or periodically), and therefore the first difference value and the second difference value can be obtained in real time (or periodically) according to new temperature data. Comparing the currently acquired first difference value with the last acquired first difference value, and comparing the currently acquired second difference value with the last acquired second difference value, if the currently acquired first difference value is smaller than the last acquired first difference value and the currently acquired second difference value is smaller than the last acquired second difference value, the requirement of indoor refrigerating capacity is reduced, at the moment, the rotating speeds of the first fan and the second fan are reduced, and if the rotating speeds of the first fan and the second fan are reduced to 85% of the maximum rotating speed.
Alternatively, the rotation speed of the outdoor fan of the air conditioner may also be determined directly based on the first difference (Ti-Ts), for example, when Ti-Ts is less than or equal to Ni, it indicates that the current indoor temperature is lower than the set indoor temperature, that is, the current indoor temperature has reached the set temperature of the user, at this time, the cooling capacity requirement is reduced, and the operation frequency of the compressor is not high, so that the rotation speed of the outdoor fan needs to be adjusted to reduce the current cooling capacity, for example, the rotation speeds of the first fan and the second fan may be adjusted to 80% of the maximum rotation speed (or other rotation speed values, which is not limited herein). Or when the first difference value Ti-Ts is reduced, the requirement of indoor refrigerating capacity is reduced, and at the moment, the rotating speeds of the first fan and the second fan are reduced, for example, the rotating speeds of the first fan and the second fan are reduced to 85% of the maximum rotating speed.
In one embodiment, after the rotation speeds of the first fan and the second fan are adjusted To the first rotation speed, after a preset time (e.g., 3min), a first difference value Ti-Ts and a second difference value Tc-To are calculated based on the latest temperature data, the first difference value Ti-Ts obtained by the current calculation is compared with the first difference value Ti-Ts obtained by the previous calculation, the second difference value Tc-To obtained by the current calculation is compared with the second difference value Tc-To obtained by the previous calculation, and whether the first difference value Ti-Ts and the second difference value Tc-To obtained by the current calculation are reduced at the same time or not is judged. If the first difference value Ti-Ts and the second difference value Tc-To are simultaneously reduced, the load of the air conditioner system is still reduced, the current refrigerating capacity exceeds the requirement of a user, and at the moment, the rotating speeds of the first fan and the second fan need To be reduced, for example, the rotating speeds are adjusted To 60 percent of the maximum rotating speed, so that the power of the compressor is further reduced, and the air volume of the outdoor fan required by the system is matched. If the first difference Ti-Ts and the second difference Tc-To are not reduced simultaneously, such as the Ti-Ts is not changed, the Tc-To is reduced, or the Ti-Ts is reduced, the Tc-To is not changed, or both the Ti-Ts and the Tc-To are not changed, or the Ti-Ts is reduced, the Tc-To is increased, and the like, at this time, the load change of the air conditioner system is not large, and therefore, the current rotating speed operation is continuously maintained.
In one embodiment, after the first difference Ti-Ts and the second difference Tc-To are simultaneously decreased and the rotation speeds of the first fan and the second fan are decreased, after a preset time (e.g., 3min), a second difference Tc-To is calculated based on the latest temperature data, the second difference Tc-To is compared with a third preset value N3, if the second difference Tc-To is less than or equal To the third preset value N3, that is, Tc-To is less than or equal To N3, it is indicated that the condensing temperature of the air conditioner system is close To the atmospheric temperature (outdoor temperature), the compressor operates at a low frequency, and the compressor frequency is determined according To the air conditioner load. At the moment, the indoor refrigerating capacity requirement is very small, so that the indoor refrigerating capacity requirement can be met by controlling the operation of one fan, namely when Tc-To is not more than N3, the rotating speed of the first fan is reduced To a third rotating speed (for example, 40 percent of the maximum rotating speed), and the second fan is controlled To stop operating; or the rotating speed of the second fan is reduced to a third rotating speed, and the first fan is controlled to stop running. For example, when Tc-To ≦ 3, the rotation speed of the first fan is reduced To 40% of the maximum rotation speed, such as 320rpm, and the second fan is controlled To stop operating. If Tc-To > N3, it indicates that there is a certain difference between the condensing temperature of the air conditioner system and the atmospheric temperature, therefore, the current rotation speed of the first fan and the second fan is maintained.
In this embodiment, the indoor temperature Ti, the outdoor temperature To and the outdoor coil temperature Tc (condensation temperature) of the air conditioner are obtained, the first difference value Ti-Ts and the second difference value Tc-To are calculated based on the obtained temperature data, the cooling capacity requirement of the air conditioner is determined according To the first difference value and the second difference value, and the rotating speeds of the first fan and the second fan are adjusted according To the cooling capacity requirement, so that the requirements of the air conditioner on the cooling capacity under different loads can be met.
For better explaining the rotation speed control method of the air conditioner of the present application, referring to fig. 5, fig. 5 is a schematic operation flow chart of the rotation speed control method of the air conditioner of the present application.
In this embodiment, when the air conditioner operates in the cooling mode or the dehumidifying mode, the operation duration of the air conditioner in this mode is obtained, and when the operation duration reaches a set operation duration (for example, greater than 5min), the indoor temperature Ti, the outdoor temperature To, and the outdoor coil temperature Tc (condensing temperature) of the air conditioner are obtained, and at the same time, the indoor temperature Ts preset by the user is obtained. Calculating a difference Ti-Ts between the indoor temperature Ti and the set indoor temperature Ts and a difference Tc-To between the temperature Tc of the external coil and the outdoor temperature To, and judging whether the air conditioner meets the condition that the Ti-Ts is less than or equal To Ni and the Tc-To is less than or equal To Nc, wherein Ni is an indoor temperature correction coefficient and is generally selected from minus 3 ℃ To plus 3 ℃; nc is the outdoor condensation temperature coefficient, and is generally 5 to 10 ℃. If the air conditioner meets the conditions that Ti-Ts is less than or equal To Ni and Tc-To is less than or equal To Nc, the current indoor temperature is lower than the set indoor temperature, namely the current indoor temperature reaches the set temperature of a user, meanwhile, the condensing temperature is higher than the outdoor temperature, and if the difference value between the condensing temperature and the outdoor temperature is smaller and smaller, the air conditioner system does not run under high load (the running frequency is not high), so that the rotating speeds of the first fan and the second fan are adjusted To be 80% of the maximum rotating speed. If the air conditioner does not satisfy Ti-Ts ≦ Ni and Tc-To ≦ Nc, the rotation speeds of the first and second fans are adjusted To the maximum rotation speed, such as 800 rpm.
After the rotating speeds of the first fan and the second fan are adjusted To be 80% of the maximum rotating speed, Ti-Ts and Tc-To are calculated based on the latest temperature data, whether the Ti-Ts and the Tc-To are reduced simultaneously or not is judged, if the Ti-Ts and the Tc-To are reduced simultaneously, the load of the air conditioner system is still reduced continuously, the current refrigerating capacity exceeds the requirement of a user, and at the moment, the rotating speeds of the first fan and the second fan need To be reduced To be 60% of the maximum rotating speed, so that the power of a compressor is further reduced, and the air volume of an outdoor fan needed by the system is matched. If the Ti-Ts and the Tc-To are not reduced simultaneously, the load change of the air conditioner system is not large, therefore, the current rotating speed is kept running, and whether the Ti-Ts and the Tc-To are reduced simultaneously is judged again at preset time intervals (such as 3 min).
After the rotating speeds of the first fan and the second fan are adjusted To be 60% of the maximum rotating speed, calculating Tc-To based on the latest temperature data, judging whether the air conditioner meets Tc-To being less than or equal To 3, if the air conditioner meets Tc-To being less than or equal To 3, the condensing temperature of the air conditioner system is close To the atmospheric temperature (outdoor temperature) at the moment, the compressor operates at a low frequency, the frequency of the compressor is determined according To the air conditioner load, and therefore the air conditioner system can be determined To operate at a low load at the moment, namely the indoor refrigerating capacity requirement is low. At the moment, the indoor refrigerating capacity requirement is very small, so that the indoor refrigerating capacity requirement can be met by controlling one fan to operate, the rotating speed of the first fan is reduced to 40% of the maximum rotating speed, such as 320rpm, and the second fan is controlled to stop operating. If the air conditioner does not meet Tc-To ≦ 3, the current rotating speed is continuously kept running, and whether the air conditioner meets Tc-To ≦ 3 is judged again at preset time intervals (such as 3 min).
The embodiment adjusts the rotating speed of the outdoor fan based on the demands of the air conditioner on the refrigerating capacity under different loads, so that the demands of the air conditioner on the refrigerating capacity under different loads are met.
In addition, this application still provides an air conditioner, the air conditioner includes memory, treater and storage on the memory and the rotational speed control procedure of operation air conditioner on the treater, the air conditioner is when operation refrigeration or dehumidification, acquires the load parameter of air conditioner, confirms the demand of air conditioner to the refrigerating output under different loads based on this load parameter, adjusts the rotational speed of outdoor fan based on the demand of air conditioner to the refrigerating output to satisfy the demand of air conditioner to the refrigerating output under different loads.
In addition, the present application also provides a storage medium having a program of a rotational speed control method of an air conditioner stored thereon, which when executed by a processor implements the steps of the rotational speed control method of the air conditioner as described above.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method for controlling a rotational speed of an air conditioner, the method comprising:
acquiring a load parameter of an air conditioner;
and adjusting the rotating speed of an outdoor fan of the air conditioner according to the load parameter, wherein the outdoor fan is a counter-rotating fan, and the rotating speed is increased when the load corresponding to the load parameter is increased.
2. A rotation speed control method of an air conditioner according to claim 1, wherein the adjusting the rotation speed of the outdoor fan of the air conditioner according to the load parameter comprises:
determining a first difference between an indoor temperature and a set temperature and a second difference between an outdoor temperature and an outdoor coil temperature, wherein the load parameters comprise the first difference and the second difference;
and adjusting the rotating speed of the outdoor fan according to the first difference and/or the second difference.
3. The rotation speed control method of an air conditioner according to claim 2, wherein the step of adjusting the rotation speed of the outdoor fan according to the first difference and/or the second difference comprises:
when the first difference value is smaller than or equal to a first preset value and the second difference value is smaller than or equal to a second preset value, adjusting the rotating speed of the outdoor fan to be a first rotating speed;
when the first difference is larger than a first preset value and/or the second difference is larger than a second preset value, the rotating speed of the outdoor fan is adjusted to be a second rotating speed, wherein the first rotating speed is smaller than the second rotating speed.
4. A rotation speed control method of an air conditioner according to claim 3, wherein the step of adjusting the rotation speed of the outdoor fan to the first rotation speed is followed by:
determining a first difference between the indoor temperature and the set temperature, and a second difference between the outdoor temperature and the outdoor coil temperature;
and when the first difference value and the second difference value are both reduced, reducing the rotating speed of the outdoor fan.
5. The rotation speed control method of an air conditioner according to claim 4, wherein the step of decreasing the rotation speed of the outdoor fan when both the first difference and the second difference decrease, is followed by:
determining a second difference between the outdoor temperature and the outdoor coil temperature;
and when the second difference value is smaller than or equal to a third preset value, reducing the rotating speed of the outdoor fan.
6. The rotation speed control method of an air conditioner according to claim 5, wherein the step of decreasing the rotation speed of the outdoor fan when the second difference is less than or equal to a third preset value comprises:
and when the second difference value is smaller than or equal to a third preset value, reducing the rotating speed of the first fan in the outdoor fan to a third rotating speed, and controlling the second fan in the outdoor fan to stop.
7. A rotation speed control method of an air conditioner according to claim 1, wherein the step of obtaining a load parameter of the air conditioner is preceded by:
acquiring the running time of the air conditioner in a refrigeration mode;
and when the running time reaches the preset time, executing the step of acquiring the load parameter of the air conditioner.
8. The method for controlling a rotation speed of an air conditioner according to claim 2, wherein the step of adjusting the rotation speed of the outdoor fan according to the first difference and/or the second difference further comprises:
comparing the currently acquired first difference with the last acquired first difference, and comparing the currently acquired second difference with the last acquired second difference, wherein the first difference and the second difference are acquired in real time;
and when the currently acquired first difference is smaller than the last acquired first difference and the currently acquired second difference is smaller than the last acquired second difference, reducing the rotating speed of the outdoor fan.
9. An air conditioner, characterized in that the air conditioner comprises a memory, a processor and a rotation speed control program stored on the memory and running the air conditioner on the processor, and the processor implements the steps of the method according to any one of claims 1 to 8 when executing the rotation speed control program of the air conditioner.
10. A storage medium having stored thereon a rotational speed control program of an air conditioner, the rotational speed control program of the air conditioner realizing the steps of the method according to any one of claims 1 to 8 when executed by a processor.
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| CN202110716735.4A CN113294897A (en) | 2021-06-25 | 2021-06-25 | Rotation speed control method of air conditioner, air conditioner and storage medium |
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| CN202110716735.4A CN113294897A (en) | 2021-06-25 | 2021-06-25 | Rotation speed control method of air conditioner, air conditioner and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353287A (en) * | 2021-12-08 | 2022-04-15 | 青岛海尔空调电子有限公司 | Fan optimization adjusting method and air conditioner |
| WO2024022097A1 (en) * | 2022-07-28 | 2024-02-01 | 佛山市顺德区美的电子科技有限公司 | Multi-split air conditioner and method for controlling same, controller, and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114353287A (en) * | 2021-12-08 | 2022-04-15 | 青岛海尔空调电子有限公司 | Fan optimization adjusting method and air conditioner |
| WO2024022097A1 (en) * | 2022-07-28 | 2024-02-01 | 佛山市顺德区美的电子科技有限公司 | Multi-split air conditioner and method for controlling same, controller, and storage medium |
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