WO2024016653A1

WO2024016653A1 - Air conditioner and control method and apparatus therefor, and storage medium and electronic device

Info

Publication number: WO2024016653A1
Application number: PCT/CN2023/077186
Authority: WO
Inventors: 王金锋; 王晓宇; 修珙理
Original assignee: 广东美的制冷设备有限公司
Priority date: 2022-07-19
Filing date: 2023-02-20
Publication date: 2024-01-25
Also published as: CN117450638A

Abstract

Disclosed in the present disclosure are an air conditioner and a control method and apparatus therefor, and a storage medium and an electronic device. The method comprises: when an air conditioner is running in a heating mode according to a preset blowing level, determining an upper frequency limit corresponding to the preset blowing level (S101); acquiring a running frequency and an operating current of the air conditioner (S102); and adjusting the upper frequency limit according to the running frequency and the operating current, and performing frequency-limiting control on the air conditioner according to the adjusted upper frequency limit (S103).

Description

Air conditioner and its control method, device and storage medium, electronic equipment

Cross-references to related applications

This disclosure claims priority to the Chinese patent application with application number 202210852623.6, titled "Air conditioner and its control method, device and storage medium, and electronic equipment" submitted on July 19, 2022, the entire content of which is incorporated by reference. This disclosure is ongoing.

Technical field

The present disclosure relates to the technical field of air conditioners, and in particular to a control method for an air conditioner, a computer-readable storage medium, an electronic device, a control device for an air conditioner, and an air conditioner.

Background technique

At present, when heating is running at a set wind speed, in order to avoid excessive frequency when running at low wind speeds, resulting in frequent shutdowns, an upper frequency limit is set for each wind speed. However, in related technologies, the frequency upper limit of each wind gear is set to a fixed value, which may easily lead to the failure to meet the anti-cold wind exit requirements under low load conditions, or frequent shutdowns under high load conditions.

public content

The present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent. To this end, the first purpose of the present disclosure is to propose a control method for an air conditioner that can prevent the outlet air temperature from being too low due to too low frequency under low load conditions, as well as frequent anti-high temperature shutdown under high load conditions. , thereby improving user comfort.

A second object of the present disclosure is to provide a computer-readable storage medium.

The third object of the present disclosure is to provide an electronic device.

The fourth object of the present disclosure is to provide a control device for an air conditioner.

The fifth object of the present disclosure is to provide an air conditioner.

In order to achieve the above object, the first embodiment of the present disclosure proposes a control method for an air conditioner. When the air conditioner operates according to a preset wind speed in the heating mode, the upper frequency limit corresponding to the preset wind speed is determined. ; Obtain the operating frequency and operating current of the air conditioner; adjust the upper frequency limit according to the operating frequency and the operating current, and perform frequency limit control on the air conditioner according to the adjusted upper frequency limit.

The control method of the air conditioner according to the embodiment of the present disclosure can prevent the outlet air temperature from being too low due to too low frequency under low load conditions, as well as frequent anti-high temperature shutdown under high load conditions, thereby improving user comfort.

In addition, the control method of the air conditioner according to the embodiment of the present disclosure may also have the following additional technical features:

According to an embodiment of the present disclosure, when it is detected that the air conditioner exits the startup anti-cold wind mode, the indoor fan of the air conditioner is controlled to operate according to the preset wind speed.

According to one embodiment of the present disclosure, determining the upper frequency limit corresponding to the preset wind speed includes: obtaining the indoor ambient temperature and the outdoor ambient temperature; ambient temperature to obtain the upper frequency limit.

Further, the upper frequency limit fn corresponding to the nth preset windshield is obtained through the following formula:

fn＝A1+k(T4+c)+bn, T1≤first preset temperature;

The first preset temperature < T1 ≤ the second preset temperature;

fn=A2+k(T4+c)+bn, the second preset temperature <T1≤the third preset temperature;

The third preset temperature < T1 ≤ the fourth preset temperature;

fn=A3+bn, T1>the fourth preset temperature;

Among them, A1>A2>A3>0, k>0, c<0, A1, A2, A3, k, c are all preset constants, bn is the constant corresponding to the nth preset windshield, and bn is the same as all The intensity of the preset windshields is positively related, 1≤n≤N, N is the number of preset windshields, T1 is the indoor ambient temperature, and T4 is the outdoor ambient temperature.

According to an embodiment of the present disclosure, the method further includes: determining whether the outdoor ambient temperature is less than or equal to a first temperature threshold; if so, after a first preset time, determining whether the indoor ambient temperature is less than a second temperature threshold; if yes, perform the step of adjusting the upper frequency limit according to the operating frequency and the operating current, wherein the second temperature threshold is greater than the first temperature threshold.

According to an embodiment of the present disclosure, adjusting the upper frequency limit according to the operating frequency and the operating current includes: determining whether the operating frequency reaches the upper frequency limit; if so, determining the operating current Whether it is less than the frequency limit current threshold; if so, determine the upper limit increase value based on the difference between the operating current and the frequency limit current threshold, and increase the frequency upper limit by the upper limit increase value.

Further, determining the upper limit increase value based on the difference between the operating current and the frequency limiting current threshold includes: if the difference is greater than or equal to a first preset difference and less than or equal to a second preset difference, Then the upper limit increase value is determined to be the first upper limit increase value; if the difference is greater than the second preset difference and less than or equal to the third preset difference, then the upper limit increase value is determined to be the second upper limit increase value, Wherein, the second upper limit increase value is greater than the first upper limit increase value; if the difference is greater than a third preset difference, then the upper limit increase value is determined to be a third upper limit increase value, wherein the third upper limit increase value The third upper limit increase value is greater than the second upper limit increase value.

According to an embodiment of the present disclosure, after performing frequency limiting control on the air conditioner according to the adjusted frequency upper limit, the method further includes: after a second preset time, returning to the determination of the outdoor ambient temperature. whether it is less than or equal to the first temperature threshold until the total operating time of the air conditioner is greater than the third preset time.

In order to achieve the above object, a second embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the control method of the air conditioner is implemented.

In order to achieve the above object, a third embodiment of the present disclosure proposes an electronic device, including a memory and a processor. A computer program is stored on the memory. When the computer program is executed by the processor, the Air conditioner control methods.

In order to achieve the above object, a fourth embodiment of the present disclosure proposes a control device for an air conditioner. The device includes: a determining module for determining when the air conditioner operates according to a preset wind speed in the heating mode. The upper frequency limit corresponding to the preset windshield; an acquisition module, used to obtain the operating frequency and operating current of the air conditioner; and an adjustment module, used to adjust the upper frequency limit according to the operating frequency and the operating current. , and perform frequency limiting control on the air conditioner according to the adjusted upper frequency limit.

The control device of the air conditioner according to the embodiment of the present disclosure can prevent the outlet air temperature from being too low due to too low frequency under low load conditions, as well as frequent anti-high temperature shutdown under high load conditions, thereby improving user comfort.

To achieve the above object, a fifth embodiment of the present disclosure provides an air conditioner, including the electronic device, or the control device of the air conditioner.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Description of drawings

Figure 1 is a schematic flowchart of a control method for an air conditioner according to an embodiment of the present disclosure;

Figure 2 is a schematic structural diagram of a control device for an air conditioner according to an embodiment of the present disclosure.

Detailed ways

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

The following describes the air conditioner and its control method, device, storage medium, and electronic equipment according to the embodiment of the present disclosure with reference to the accompanying drawings 1-2.

Figure 1 is a schematic flowchart of a control method for an air conditioner according to an embodiment of the present disclosure. As shown in Figure 1, the control method of the air conditioner includes the following steps:

S101. When the air conditioner operates according to the preset wind speed in the heating mode, determine the upper frequency limit corresponding to the preset wind speed.

As an example, the control method of the air conditioner may also include: when detecting that the air conditioner exits the startup anti-cold wind mode, controlling the indoor fan of the air conditioner to operate according to a preset wind speed.

Specifically, when the air conditioner detects that the air conditioner exits the startup anti-cold wind mode in the heating mode, it controls the indoor fan of the air conditioner to run according to the preset wind speed, and determines the preset wind speed when the indoor fan runs according to the preset wind speed. The frequency upper limit corresponding to the file.

As an example, determining the upper frequency limit corresponding to the preset wind speed may include: obtaining the indoor ambient temperature and the outdoor ambient temperature; and obtaining the upper frequency limit based on the preset wind speed, indoor ambient temperature, and outdoor ambient temperature.

Specifically, the indoor ambient temperature and outdoor ambient temperature can be obtained through a temperature sensor, and then the upper frequency limit can be obtained based on the preset wind speed and the obtained indoor ambient temperature and outdoor ambient temperature.

In this embodiment, the upper frequency limit fn corresponding to the n-th preset wind speed can be obtained by the following formula:

fn＝A1+k(T4+c)+bn, T1≤first preset temperature;

The first preset temperature < T1 ≤ the second preset temperature;

The third preset temperature < T1 ≤ the fourth preset temperature;

fn=A3+bn, T1>the fourth preset temperature;

Among them, A1>A2>A3>0, k>0, c<0, A1, A2, A3, k, c are all preset constants, bn is the constant corresponding to the nth preset windshield, and bn is the same as the preset constant. Assume that the intensity of the windshield is positively related, 1≤n≤N, N is the number of preset windshields, T1 is the indoor ambient temperature, and T4 is the outdoor ambient temperature.

Specifically, assuming that the number of preset wind gears is 4, the first preset wind gear is a silent wind gear, the second preset wind gear is a breeze wind gear, and the third preset wind gear is a weak wind gear. The fourth preset wind speed is the wind speed, the first preset temperature is 10℃, the second preset temperature is 15℃, the third preset temperature is 24℃, the fourth preset temperature is 27℃, A1＝ 60, A2=50, A3=40, k=2, C=-15, b1=0, b2=5, b3=15, b4=25. When T1≤10℃, the upper frequency limit f1 corresponding to the first preset wind gear=A1+k(T4+c)+b1, and the upper frequency limit f2=A1+k(T4+c) corresponding to the second preset wind gear )+b2, the frequency upper limit corresponding to the third preset wind gear f3=A1+k(T4+c)+b3, the frequency upper limit corresponding to the fourth preset wind gear f4=A1+k(T4+c)+ b4; When 10℃＜T1≤15℃, the upper frequency limit corresponding to the first preset wind speed The upper frequency limit corresponding to the second preset wind speed The upper frequency limit corresponding to the third preset wind speed The upper frequency limit corresponding to the 4th preset wind speed When 15℃＜T1≤24℃, the frequency upper limit corresponding to the first preset wind gear is f1=A2+k(T4+c)+b1, and the frequency upper limit corresponding to the second preset wind gear is f2=A2+k (T4+c)+b2, the upper frequency limit corresponding to the third preset wind gear f3=A2+k(T4+c)+b3, the upper frequency limit corresponding to the fourth preset wind gear f4＝A2+k(T4+c)+b4; when 24℃＜T1≤27℃, the upper frequency limit corresponding to the first preset windshield The upper frequency limit corresponding to the second preset wind speed The upper frequency limit corresponding to the third preset wind speed The upper frequency limit corresponding to the 4th preset wind speed When T1>27℃, the frequency upper limit corresponding to the first preset wind gear is f1=A3+b1, the frequency upper limit corresponding to the second preset wind gear is f2=A3+b2, and the frequency upper limit corresponding to the third preset wind gear is f2=A3+b2. The upper frequency limit f3=A3+b3, and the upper frequency limit f4=A3+b4 corresponding to the fourth preset wind speed. As a result, the upper frequency limit corresponding to each preset wind speed is linked to the indoor ambient temperature and the outdoor ambient temperature.

S102. Obtain the operating frequency and operating current of the air conditioner.

Specifically, the operating frequency and operating current of the outdoor compressor in the air conditioner are obtained.

S103. Adjust the upper frequency limit according to the operating frequency and operating current, and perform frequency limit control on the air conditioner according to the adjusted upper frequency limit.

As an example, the control method of the air conditioner may further include: determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold; if so, after the first preset time, determine whether the indoor ambient temperature is less than the second temperature threshold; if so, then The step of adjusting the upper frequency limit according to the operating frequency and the operating current is performed, wherein the second temperature threshold is greater than the first temperature threshold.

Specifically, it is determined whether the outdoor ambient temperature is less than or equal to the first temperature threshold (such as 2°C). If the outdoor ambient temperature is less than or equal to the first temperature threshold, then after the first preset time (such as 15 minutes), it is determined whether the indoor ambient temperature is less than or equal to the first temperature threshold. Second temperature threshold (such as 38°C), when the indoor ambient temperature is less than the second temperature threshold, the step of adjusting the frequency upper limit according to the operating frequency and operating current is performed.

Further, adjusting the upper frequency limit based on the operating frequency and operating current may include: determining whether the operating frequency reaches the upper frequency limit; if so, determining whether the operating current is less than the frequency limit current threshold; if so, determining whether the operating current and the frequency limit current threshold are The difference between determines the upper limit increase value and increases the frequency upper limit by the upper limit increase value.

Specifically, it is judged whether the operating frequency reaches the frequency upper limit. If the operating frequency reaches the frequency upper limit, it is judged whether the operating current is less than the frequency limit current threshold. If the operating current is less than the frequency limit current threshold, it is determined according to the difference between the operating current and the frequency limit current threshold. Determine the cap increase value and increase the frequency cap by the cap increase value. If necessary, different frequency limiting current thresholds can be set according to different types of outdoor compressors. Therefore, by judging whether the operating current is less than the frequency limit current threshold, the upper frequency limit is increased by the upper limit increase value to fully utilize the compressor power during low-temperature heating, so that it can meet the heating needs of users in cold areas.

In this embodiment, determining the upper limit increase value based on the difference between the operating current and the frequency limiting current threshold may include: if the difference is greater than or equal to the first preset difference and less than or equal to the second preset difference, then determining the upper limit increase The value is the first upper limit increase value; If the difference is greater than the second preset difference and less than or equal to the third preset difference, the upper limit increase value is determined to be the second upper limit increase value, wherein the second upper limit increase value is greater than the first upper limit increase value; if the difference is greater than By the third preset difference, the upper limit increase value is determined to be the third upper limit increase value, wherein the third upper limit increase value is greater than the second upper limit increase value.

Specifically, if the difference between the operating current In and the frequency limiting current threshold I (In-I) is greater than or equal to the first preset difference (such as 1) and less than or equal to the second preset difference (such as 2), then it is determined The upper limit increase value d is the first upper limit increase value (such as 2); if the difference (In-I) between the operating current In and the frequency limiting current threshold I is greater than the second preset difference and less than or equal to the third preset difference ( As in 3), the upper limit increase value is determined to be the second upper limit increase value (4); if the difference (In-I) between the operating current In and the frequency limiting current threshold I is greater than the third preset difference, the upper limit increase value is determined Increase the value for the third cap (e.g. 6).

As an example, after performing frequency limiting control on the air conditioner according to the adjusted upper frequency limit, the control method of the air conditioner may further include: after the second preset time, return to the step of determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold. , until the total operating time of the air conditioner is greater than the third preset time.

Specifically, after performing frequency limiting control on the air conditioner according to the adjusted upper frequency limit for a second preset time (such as 5 minutes), return to the step of determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold. When the total operating time of the air conditioner is greater than During the third preset time (such as 40 minutes), the step of determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold is no longer returned.

To sum up, the control method of the air conditioner determines the upper frequency limit corresponding to the preset wind speed when the air conditioner operates according to the preset wind speed in the heating mode; obtains the operating frequency and working current of the air conditioner; according to the operation The frequency and operating current are adjusted to the upper frequency limit, and the frequency limit control of the air conditioner is carried out according to the adjusted upper frequency limit. The upper frequency limit corresponding to the windshield can be increased under low load conditions to prevent the outlet air temperature from being too high due to too low frequency. Low; lowers the upper frequency limit corresponding to the windshield under high load conditions to prevent frequent high-temperature shutdowns and thereby improve user comfort.

Embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by the processor, the above-mentioned control method of the air conditioner is implemented.

The computer-readable storage medium of the embodiment of the present disclosure, when the computer program corresponding to the above-mentioned control method of the air conditioner stored thereon is executed, can increase the frequency upper limit corresponding to the windshield under low load conditions to prevent the frequency from Too low will cause the outlet air temperature to be too low; under high load conditions, lower the upper frequency limit corresponding to the wind gear to prevent frequent high-temperature shutdowns, thereby improving user comfort.

An embodiment of the present disclosure also provides an electronic device, including a memory and a processor. A computer program is stored in the memory. When the computer program is executed by the processor, the above-mentioned control method of the air conditioner is implemented.

The electronic device of the embodiment of the present disclosure, when the computer program corresponding to the above-mentioned control method of the air conditioner stored thereon is executed, can increase the upper frequency limit corresponding to the wind speed under low load conditions to prevent the frequency from being too low. The outlet air temperature is too low; under high load conditions, lower the upper frequency limit corresponding to the wind gear to prevent frequent high-temperature shutdowns and thereby improve user comfort.

Figure 2 is a schematic structural diagram of a control device for an air conditioner according to an embodiment of the present disclosure. As shown in Figure 2, the control device 100 of the air conditioner includes: a determination module 10, used to determine the upper frequency limit corresponding to the preset wind speed when the air conditioner operates according to the preset wind speed in the heating mode; and an acquisition module 20, used to determine the upper frequency limit corresponding to the preset wind speed. To obtain the operating frequency and operating current of the air conditioner; the adjustment module 30, It is used to adjust the upper frequency limit based on the operating frequency and operating current, and to perform frequency limit control on the air conditioner based on the adjusted upper frequency limit.

As an example, the determination module 10 is also configured to control the indoor fan of the air conditioner to operate according to a preset wind speed when it is detected that the air conditioner exits the startup anti-cold wind mode.

As an example, the determination module 10 is also used to obtain the indoor ambient temperature and the outdoor ambient temperature; and obtain the frequency upper limit based on the preset wind speed, indoor ambient temperature, and outdoor ambient temperature.

Specifically, the indoor ambient temperature and outdoor ambient temperature can be obtained through a temperature sensor, and then the frequency upper limit can be obtained based on the preset wind speed and the obtained indoor ambient temperature and outdoor ambient temperature.

In this embodiment, the determination module 10 is also used to obtain the upper frequency limit fn corresponding to the n-th preset wind speed through the following formula:

fn＝A1+k(T4+c)+bn, T1≤first preset temperature;

The first preset temperature < T1 ≤ the second preset temperature;

The third preset temperature < T1 ≤ the fourth preset temperature;

fn=A3+bn, T1>the fourth preset temperature;

Specifically, assuming that the number of preset wind gears is 4, the first preset wind gear is a silent wind gear, the second preset wind gear is a breeze wind gear, and the third preset wind gear is a weak wind gear. The fourth preset wind speed is the wind speed, the first preset temperature is 10℃, the second preset temperature is 15℃, the third preset temperature is 24℃, the fourth preset temperature is 27℃, A1＝ 60, A2=50, A3=40, k=2, C=-15, b1=0, b2=5, b3=15, b4=25. When T1≤10℃, the upper frequency limit f1 corresponding to the first preset wind gear=A1+k(T4+c)+b1, and the upper frequency limit f2=A1+k(T4+c) corresponding to the second preset wind gear )+b2, the frequency upper limit corresponding to the third preset wind gear f3=A1+k(T4+c)+b3, the frequency upper limit corresponding to the fourth preset wind gear f4=A1+k(T4+c)+ b4; When 10℃＜T1≤15℃, the upper frequency limit corresponding to the first preset wind speed The upper frequency limit corresponding to the second preset wind speed The upper frequency limit corresponding to the third preset wind speed The upper frequency limit corresponding to the 4th preset wind speed When 15℃＜T1≤24℃, the frequency upper limit corresponding to the first preset wind gear is f1=A2+k(T4+c)+b1, and the frequency upper limit corresponding to the second preset wind gear is f2=A2+k (T4+c)+b2, the frequency upper limit corresponding to the third preset wind gear f3=A2+k(T4+c)+b3, the frequency upper limit corresponding to the fourth preset wind gear f4=A2+k(T4 +c)+b4; when 24℃＜T1≤27℃, the upper frequency limit corresponding to the first preset wind speed The upper frequency limit corresponding to the second preset wind speed The upper frequency limit corresponding to the third preset wind speed The upper frequency limit corresponding to the 4th preset wind speed When T1>27℃, the frequency upper limit corresponding to the first preset wind gear is f1=A3+b1, the frequency upper limit corresponding to the second preset wind gear is f2=A3+b2, and the frequency upper limit corresponding to the third preset wind gear is f2=A3+b2. The upper frequency limit f3=A3+b3, and the upper frequency limit f4=A3+b4 corresponding to the fourth preset wind speed. As a result, the upper frequency limit corresponding to each preset wind speed is linked to the indoor ambient temperature and the outdoor ambient temperature.

As an example, the adjustment module 30 is also used to determine whether the outdoor ambient temperature is less than or equal to the first temperature threshold; if so, after the first preset time, determine whether the indoor ambient temperature is less than the second temperature threshold; if so, execute the method according to The step of adjusting the operating frequency and operating current to the frequency upper limit, wherein the second temperature threshold is greater than the first temperature threshold.

Further, the adjustment module 30 is also used to determine whether the operating frequency reaches the upper frequency limit; if so, determine whether the operating current is less than the frequency limit current threshold; if so, determine the upper limit increase value based on the difference between the operating current and the frequency limit current threshold, And increase the frequency upper limit by the upper limit increase value.

In this embodiment, the adjustment module 30 is also used to determine the upper limit increase value as the first upper limit increase value when the difference is greater than or equal to the first preset difference and less than or equal to the second preset difference; when the difference is greater than When the second preset difference is less than or equal to the third preset difference, the upper limit increase value is determined to be the second upper limit increase value, wherein the second upper limit increase value is greater than the first upper limit increase value; when the difference is greater than the third preset When there is a difference, the upper limit increase value is determined to be the third upper limit increase value, where the third upper limit increase value is greater than the second upper limit increase value.

As an example, the adjustment module 30 is also configured to perform frequency limiting control on the air conditioner according to the adjusted upper frequency limit for a second preset time, and then return to the step of determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold until the air conditioner The total running time is greater than the third preset time.

To sum up, the control device of the air conditioner determines the upper frequency limit corresponding to the preset wind speed when the air conditioner operates at the preset wind speed in the heating mode; obtains the operating frequency and working current of the air conditioner; and determines the operating frequency according to the operating frequency. Adjust the upper frequency limit with the operating current, and perform frequency limit control on the air conditioner based on the adjusted upper frequency limit. This can increase the upper frequency limit corresponding to the windshield under low load conditions to prevent the outlet air temperature from being too low due to too low frequency. ; Lower the upper frequency limit corresponding to the windshield under high load conditions to prevent frequent high-temperature shutdowns and thereby improve user comfort.

An embodiment of the present disclosure also provides an air conditioner, including the above-mentioned electronic device, or the above-mentioned control device of the air conditioner.

The air conditioner in the embodiment of the present disclosure, through the above-mentioned electronic equipment, or the above-mentioned control device of the air conditioner, can increase the upper frequency limit corresponding to the wind speed under low load conditions to prevent the outlet air temperature from being too low due to too low frequency. ; Lower the upper frequency limit corresponding to the windshield under high load conditions to prevent frequent high-temperature shutdowns and thereby improve user comfort.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered to be a sequenced list of executable instructions for implementing logical functions, which may be embodied in any computer. in a readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can retrieve and execute instructions from the instruction execution system, apparatus, or device) Used by instruction execution systems, devices or equipment. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk cartridge (magnetic device), random access storage memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, and subsequently edited, interpreted, or otherwise suitable as necessary. process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present disclosure may be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if it is implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following technologies known in the art: a logic gate circuit with a logic gate circuit for implementing a logic function on a data signal. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials, or features are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply the referred devices or elements. Must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations on the disclosure.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In this disclosure, unless otherwise explicitly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified limitations. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

In this disclosure, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features may be in indirect contact through an intermediary. touch. Furthermore, the terms “above”, “above” and “above” the first feature of the second feature may mean that the first feature is directly above or diagonally above the second feature, Or simply means that the first feature has a higher level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations to the present disclosure. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present disclosure. The embodiments are subject to changes, modifications, substitutions and variations.

Claims

A control method for an air conditioner, the method includes:

When the air conditioner operates according to the preset wind speed in the heating mode, determine the upper frequency limit corresponding to the preset wind speed;

Obtain the operating frequency and operating current of the air conditioner;

The upper frequency limit is adjusted according to the operating frequency and the operating current, and the frequency limit control is performed on the air conditioner according to the adjusted upper frequency limit.
The method of claim 1, further comprising:

When it is detected that the air conditioner exits the startup anti-cold wind mode, the indoor fan of the air conditioner is controlled to operate according to the preset wind speed.
The method according to claim 1 or 2, wherein determining the upper frequency limit corresponding to the preset wind speed includes:

Get the indoor ambient temperature and outdoor ambient temperature;

The frequency upper limit is obtained according to the preset windshield, the indoor ambient temperature and the outdoor ambient temperature.
The method according to claim 2 or 3, wherein the upper frequency limit fn corresponding to the n-th preset wind speed is obtained by the following formula:

fn＝A1+k(T4+c)+bn, T1≤first preset temperature;

The first preset temperature < T1 ≤ the second preset temperature;

fn=A2+k(T4+c)+bn, the second preset temperature <T1≤the third preset temperature;

The third preset temperature < T1 ≤ the fourth preset temperature;

fn=A3+bn, T1>the fourth preset temperature;

Among them, A1>A2>A3>0, k>0, c<0, A1, A2, A3, k, c are all preset constants, bn is the constant corresponding to the nth preset windshield, and bn is the same as all The intensity of the preset windshields is positively related, 1≤n≤N, N is the number of preset windshields, T1 is the indoor ambient temperature, and T4 is the outdoor ambient temperature.
The method according to claim 3 or 4, wherein the method further includes:

Determine whether the outdoor ambient temperature is less than or equal to the first temperature threshold;

If so, after the first preset time, determine whether the indoor ambient temperature is less than the second temperature threshold;

If yes, then perform the step of adjusting the upper frequency limit according to the operating frequency and the operating current, wherein the second temperature threshold is greater than the first temperature threshold.
The method according to claim 5, wherein the adjusting the upper frequency limit according to the operating frequency and the operating current includes:

Determine whether the operating frequency reaches the upper frequency limit;

If so, determine whether the operating current is less than the frequency limiting current threshold;

If so, determine an upper limit increase value based on the difference between the operating current and the frequency limiting current threshold, and increase the frequency upper limit by the upper limit increase value.
The method according to claim 6, wherein determining the upper limit increase value based on the difference between the operating current and the frequency limiting current threshold includes:

If the difference is greater than or equal to the first preset difference and less than or equal to the second preset difference, then determine the upper limit increase value to be the first upper limit increase value;

If the difference is greater than the second preset difference and less than or equal to the third preset difference, then the upper limit increase value is determined to be a second upper limit increase value, wherein the second upper limit increase value is greater than the first Upper limit increase value;

If the difference is greater than the third preset difference, the upper limit increase value is determined to be a third upper limit increase value, wherein the third upper limit increase value is greater than the second upper limit increase value.
The method according to any one of claims 5 to 7, wherein after performing frequency limiting control on the air conditioner according to the adjusted upper frequency limit, the method further includes:

After the second preset time, return to the step of determining whether the outdoor ambient temperature is less than or equal to the first temperature threshold until the total operating time of the air conditioner is greater than the third preset time.
A computer-readable storage medium has a computer program stored thereon. When the computer program is executed by a processor, the control method of the air conditioner according to any one of claims 1-8 is implemented.
The electronic device includes a memory and a processor. A computer program is stored on the memory. When the computer program is executed by the processor, the control method of the air conditioner according to any one of claims 1-8 is implemented.
Control device for air conditioner, said device including:

A determination module used to determine the upper frequency limit corresponding to the preset wind speed when the air conditioner operates according to the preset wind speed in the heating mode;

An acquisition module, used to acquire the operating frequency and operating current of the air conditioner;

An adjustment module is used to adjust the upper frequency limit according to the operating frequency and the operating current, and to perform frequency limit control on the air conditioner according to the adjusted upper frequency limit.
An air conditioner includes an electronic device as claimed in claim 10, or a control device for an air conditioner as claimed in claim 11.