Air conditioner, control method thereof, and computer readable storage medium

By determining the target compressor frequency before adjusting the fan speed during air conditioner heating operation, the problem of frequent compressor start-stop during air conditioner heating operation is solved, improving compressor operation reliability and user comfort.

CN116499096BActive Publication Date: 2026-04-24GD MIDEA AIR CONDITIONING EQUIP CO LTD +1
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GD MIDEA AIR CONDITIONING EQUIP CO LTD
Filing Date
2022-01-18
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

When an air conditioner is in heating mode, the instantaneous changes in the indoor fan speed cause the compressor to start and stop frequently, affecting the reliability of the compressor and the comfort of indoor users.

Method used

When the air conditioner is in heating mode, first determine the target frequency of the compressor based on the target speed value, then adjust the indoor fan speed to the target value, and adjust the fan speed after a delay to match the compressor frequency, so as to avoid frequent start-stop of the compressor.

Benefits of technology

It effectively avoids compressor malfunctions, improves compressor operational reliability and indoor user comfort, and ensures adequate heat exchange capacity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116499096B_ABST
    Figure CN116499096B_ABST
Patent Text Reader

Abstract

The application discloses a control method of an air conditioner, which comprises the following steps: in the process that the air conditioner is in heating operation, when there is a rotating speed adjustment instruction of an indoor fan, determining a target frequency of a compressor of the air conditioner according to a target rotating speed value; the target rotating speed value is a target value required to be reached after the rotating speed adjustment instruction requires the rotating speed adjustment of the indoor fan; controlling the compressor to operate according to the target frequency; when the operation of the compressor reaches a preset condition, controlling the indoor fan to adjust to the target rotating speed value and operate. The application also discloses an air conditioner and a computer readable storage medium. The application aims to avoid the frequent start and stop of the compressor, improve the operation reliability of the compressor and improve the indoor user comfort.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a control method for an air conditioner, an air conditioner, and a computer-readable storage medium. Background Technology

[0002] With the development of economy and technology, air conditioners are becoming increasingly widely used in daily life. Currently, when an air conditioner receives a speed adjustment signal from the indoor fan, it generally first adjusts the fan speed in real time, and then adjusts the compressor's operating frequency according to the frequency corresponding to the current fan speed.

[0003] However, when the air conditioner is in heating mode, the indoor load is generally high and the compressor operates at a high frequency. At this time, the instantaneous change in the fan speed will cause the instantaneous change in the heat exchange capacity of the indoor fan. This can easily cause the compressor to malfunction and protect itself, resulting in frequent start-stop of the compressor, which can affect the comfort of indoor users and the reliability of compressor operation. Summary of the Invention

[0004] The main objective of this invention is to provide a control method for an air conditioner, an air conditioner, and a computer-readable storage medium, which aims to avoid frequent start-stop of the compressor, improve the reliability of compressor operation, and enhance the comfort of indoor users.

[0005] To achieve the above objectives, the present invention provides a control method for an air conditioner, the control method comprising the following steps:

[0006] When the air conditioner is in heating mode, and there is a speed adjustment command for the indoor fan, the target frequency of the air conditioner's compressor is determined according to the target speed value; the target speed value is the target value that the indoor fan speed needs to be adjusted to achieve according to the speed adjustment command.

[0007] The compressor is controlled to operate according to the target frequency;

[0008] When the compressor reaches the preset operating conditions, the indoor fan is controlled to adjust to the target speed value.

[0009] Optionally, the control method for the air conditioner further includes:

[0010] When the air conditioner is in heating mode, when there is a speed adjustment command for the indoor fan, the target speed adjustment value is obtained. The target speed adjustment value is the target parameter that the indoor fan needs to achieve when it is adjusted from the current speed to the target speed value.

[0011] When the target speed adjustment value is greater than the preset speed adjustment value, the step of determining the target frequency of the air conditioner's compressor based on the target speed value is executed.

[0012] Optionally, the control method for the air conditioner further includes:

[0013] When the air conditioner is in heating mode, when there is a speed adjustment command for the indoor fan, the target speed adjustment value is obtained. The target speed adjustment value is the target parameter that the indoor fan needs to achieve when it is adjusted from the current speed to the target speed value.

[0014] When the target speed adjustment value is greater than the preset speed adjustment value, the current first temperature of the indoor heat exchanger is obtained;

[0015] When the first temperature is greater than the first preset temperature, the process of determining the target frequency of the air conditioner's compressor based on the target rotational speed value is executed.

[0016] Optionally, after the step of obtaining the target speed adjustment value, the method further includes:

[0017] When the target rotational speed is less than the preset rotational speed adjustment value, or when the first temperature is less than or equal to the first preset temperature, the indoor fan is controlled to adjust to the target rotational speed value.

[0018] When the indoor fan is running at the target speed, the compressor is controlled to operate according to the target frequency.

[0019] Optionally, the control method for the air conditioner further includes:

[0020] Obtain the indoor ambient temperature of the space where the air conditioner operates;

[0021] The preset rotation speed adjustment value is determined based on the indoor ambient temperature.

[0022] Optionally, after the step of controlling the compressor to operate according to the target frequency, the method further includes:

[0023] When the duration of compressor operation controlled according to the target frequency reaches a preset duration, it is determined that the compressor operation has met the preset condition.

[0024] Optionally, after the step of controlling the compressor to operate according to the target frequency, the method further includes:

[0025] Obtain the current second temperature of the indoor heat exchanger;

[0026] When the second temperature is lower than the second preset temperature, it is determined that the compressor operation has reached the preset condition.

[0027] Optionally, after the step of obtaining the current second temperature of the indoor heat exchanger, the method further includes:

[0028] When the second temperature is greater than or equal to the second preset temperature, the compressor is controlled to operate at a reduced frequency, and the process returns to the step of obtaining the current second temperature of the indoor heat exchanger.

[0029] Furthermore, in order to achieve the above objectives, this application also proposes an air conditioner, the air conditioner comprising:

[0030] compressor;

[0031] Indoor fan;

[0032] A control device, wherein the compressor and the indoor fan are both connected to the control device, the control device comprising: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor, wherein the air conditioner control program, when executed by the processor, implements the steps of the air conditioner control method as described in any of the preceding claims.

[0033] In addition, to achieve the above objectives, this application also proposes a computer-readable storage medium storing a control program for an air conditioner, which, when executed by a processor, implements the steps of the control method for an air conditioner as described in any of the preceding claims.

[0034] This invention proposes a control method for an air conditioner. When the air conditioner is in heating mode and the indoor fan speed needs adjustment, the method first regulates the compressor frequency based on the target speed to be achieved after the indoor fan adjustment. Then, the indoor fan speed is further adjusted to the target speed. During this process, upon receiving the indoor fan speed adjustment command, the indoor fan speed is not adjusted in real time, but rather delayed until after the compressor frequency adjustment. This ensures that the heat exchange capacity of the adjusted indoor fan speed matches the compressor's operating frequency, effectively preventing compressor malfunctions, frequent compressor starts and stops, indoor temperature fluctuations, improving compressor reliability, and enhancing user comfort. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the air conditioner of the present invention;

[0036] Figure 2 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to the present invention;

[0037] Figure 3 This is a flowchart illustrating another embodiment of the control method for an air conditioner according to the present invention;

[0038] Figure 4 This is a flowchart illustrating another embodiment of the control method for the air conditioner of the present invention.

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] The main solution of this invention is as follows: When the air conditioner is in heating mode, and there is a speed adjustment command for the indoor fan, the target frequency of the air conditioner's compressor is determined according to the target speed value; the target speed value is the target value that the indoor fan speed needs to reach after the speed adjustment command requires adjustment; the compressor is controlled to operate according to the target frequency; when the compressor operation reaches a preset condition, the indoor fan is controlled to adjust to the target speed value.

[0042] In existing technology, when an air conditioner is in heating mode, the indoor load is generally high and the compressor operates at a high frequency. At this time, the instantaneous change in fan speed will cause an instantaneous change in the heat exchange capacity of the indoor fan. This can easily cause the compressor to malfunction and protect itself, resulting in frequent start-stop of the compressor, which can affect the comfort of indoor users and the reliability of compressor operation.

[0043] The present invention provides the above-mentioned solution, which aims to avoid frequent start-stop of the compressor, improve the reliability of compressor operation, and enhance the comfort of indoor users.

[0044] This invention provides an air conditioner. The air conditioner can be a wall-mounted air conditioner, a floor-standing air conditioner, a ceiling-mounted air conditioner, a portable air conditioner, a window air conditioner, etc.

[0045] In this embodiment, refer to Figure 1 The air conditioner includes a refrigerant circulation system and a control device 1. The refrigerant circulation system includes a connected compressor 2, an indoor heat exchanger, a throttling device, and an outdoor heat exchanger. The indoor heat exchanger is equipped with an indoor fan 3.

[0046] Both compressor 2 and indoor fan 3 are connected to control device 1, which can be used to control the operation of compressor 2 and indoor fan 3.

[0047] In this embodiment of the invention, reference is made to Figure 1 The control device 1 of the air conditioner includes: a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, etc. The memory 1002 can be a high-speed RAM or a stable memory (non-volatile memory), such as a disk storage device. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0048] Those skilled in the art will understand that Figure 1 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0049] like Figure 1 As shown, the memory 1002, which is a computer-readable storage medium, may include a control program for an air conditioner. Figure 1 In the device shown, the processor 1001 can be used to call the control program of the air conditioner stored in the memory 1002 and execute the relevant steps of the control method of the air conditioner in the following embodiments.

[0050] This invention also provides a control method for an air conditioner, which is used to control the air conditioner described above.

[0051] Reference Figure 2 This application proposes an embodiment of a control method for an air conditioner. In this embodiment, the control method for the air conditioner includes:

[0052] Step S10: When the air conditioner is in heating mode, and there is a speed adjustment command for the indoor fan, the target frequency of the air conditioner's compressor is determined according to the target speed value; the target speed value is the target value that the indoor fan speed needs to be adjusted to achieve according to the speed adjustment command.

[0053] The speed adjustment command is specifically used to control the indoor fan to adjust its operating speed. The speed adjustment command can be entered by the user based on their needs, or it can be automatically generated by the air conditioner based on the current operating conditions.

[0054] When a speed adjustment command for the indoor fan is present, it indicates that the current speed of the indoor fan needs to be increased or decreased. In this embodiment, the speed adjustment command is a speed reduction command for the indoor fan; in other embodiments, the speed adjustment command may also be a speed increase command for the indoor fan.

[0055] Specifically, the speed adjustment command may include the adjustment range of the current indoor fan speed or the target speed value to which the current indoor fan speed needs to be adjusted. Based on this, the target speed value can be determined according to the speed adjustment command.

[0056] The target frequency is specifically the frequency used to regulate the compressor's frequency. In this embodiment, the target frequency is the maximum frequency allowed for the compressor to operate at its current frequency. In other embodiments, the target frequency may also be the frequency value required for the compressor to operate at.

[0057] Different target rotational speeds correspond to different target frequencies. Specifically, the target frequency and target rotational speed can be positively correlated; the target frequency increases as the target rotational speed increases, and decreases as the target rotational speed decreases. The correspondence between target rotational speed and target frequency can be preset, such as a mapping relationship or a calculation formula. The target frequency can be obtained by querying a mapping table based on the target rotational speed; alternatively, the target frequency can be calculated by substituting the target rotational speed into a preset formula.

[0058] Step S20: Control the compressor to operate according to the target frequency;

[0059] In this embodiment, the target frequency is the maximum frequency allowed for the compressor to operate at its current frequency. Therefore, during compressor operation controlled according to the target frequency, if the current compressor frequency exceeds the target frequency, the compressor is controlled to operate at the target frequency; if the current compressor frequency is less than the target frequency, the compressor is controlled to maintain its current frequency. In other embodiments, the target frequency can also be the frequency value required for the compressor to operate at. Controlling the compressor operation according to the target frequency can mean adjusting the compressor to operate at the target frequency.

[0060] While the compressor is controlled to operate according to the target frequency, the indoor fan maintains its current speed.

[0061] Step S30: When the compressor reaches the preset operating conditions, control the indoor fan to adjust to the target speed value.

[0062] The preset conditions are specifically the pre-set operating conditions (such as running time and / or heat exchanger temperature) required to adjust the indoor fan speed to the target speed value when the compressor is controlled to operate at the target frequency.

[0063] When the compressor reaches the preset operating conditions, it indicates that the current operating frequency of the compressor matches the heat exchange capacity corresponding to the target speed value. At this time, the indoor fan is controlled to adjust from the current speed to the target speed value. When the compressor does not reach the preset operating conditions, it indicates that the current operating frequency of the compressor does not match the heat exchange capacity corresponding to the target speed value. At this time, the compressor is controlled to operate according to the target frequency and the indoor fan is controlled to maintain the current speed.

[0064] This invention proposes a control method for an air conditioner. When the air conditioner is in heating mode and the indoor fan speed needs adjustment, the method first regulates the compressor frequency based on the target speed to be achieved after the indoor fan is adjusted. Then, the indoor fan speed is further adjusted to the target speed. During this process, upon receiving the indoor fan speed adjustment command, the indoor fan speed is not adjusted in real time, but rather delayed until after the compressor frequency is adjusted. This ensures that the heat exchange capacity of the adjusted indoor fan speed matches the compressor's operating frequency, effectively preventing compressor malfunctions, frequent compressor starts and stops, indoor temperature fluctuations, improving compressor reliability, and enhancing user comfort.

[0065] Furthermore, in one implementation of the above embodiment, after step S20, when the duration of compressor operation controlled according to the target frequency reaches a preset duration, it is determined that the compressor operation has met the preset condition. The preset duration is specifically a parameter determined according to the air conditioner model; different models correspond to different preset durations. Timing begins when the compressor starts operating according to the target frequency. If the timing duration is greater than or equal to the preset duration, it is determined that the compressor operation has met the preset condition; if the timing duration is less than the preset duration, it is determined that the compressor operation has not met the preset condition. Based on this, it can be ensured that when the compressor is regulated at the target frequency for a sufficient period to reach a stable operating state, the indoor fan is further adjusted to the target speed value. This ensures that the compressor will not overload and cause abnormal protection during the indoor fan speed adjustment process, thereby effectively improving the compressor's operational reliability and enhancing indoor user comfort.

[0066] Furthermore, in another implementation of the above embodiment, after step S20, the method may further include: obtaining the current second temperature of the indoor heat exchanger; when the second temperature is less than the second preset temperature, determining that the compressor operation has reached the preset condition; when the second temperature is greater than or equal to the second preset temperature, determining that the compressor operation has not reached the preset condition, controlling the compressor to operate at a reduced frequency, and returning to the step of obtaining the current second temperature of the indoor heat exchanger.

[0067] The second preset temperature is specifically the maximum temperature value of the indoor heat exchanger that the compressor can operate normally at the target speed when the indoor fan is running at the target speed. The second preset temperature can be a fixed parameter set in advance, or it can be a temperature parameter determined according to the target speed value and / or the current frequency of the compressor. Different target speed values ​​and / or current frequencies correspond to different second preset temperatures.

[0068] When the second temperature is lower than the second preset temperature, it indicates that the current compressor operating frequency is not too high. Therefore, it is determined that the current compressor operation has reached the preset conditions, and the indoor fan is adjusted to the target speed value. When the second temperature is greater than or equal to the second preset temperature, it indicates that the current compressor operating frequency is too high. At this time, the compressor frequency is reduced, and the second temperature is judged again to see if it is lower than the second preset temperature. Based on this, it can be ensured that the compressor frequency is low enough before adjusting the indoor fan speed, so that the compressor will not stop due to excessive load after the indoor fan is adjusted to the target speed value, further improving the compressor operation reliability and user comfort.

[0069] In other embodiments, when the second temperature is greater than or equal to the second preset temperature, the operating speed of the outdoor fan can be increased before returning to the step of obtaining the current second temperature of the indoor heat exchanger.

[0070] Furthermore, in another implementation of the above embodiments, when the duration of compressor operation controlled according to the target frequency reaches a preset duration, the current second temperature of the indoor heat exchanger can be obtained; when the second temperature is less than a second preset temperature, it is determined that the compressor operation has met the preset condition; when the second temperature is greater than or equal to the second preset temperature, it is determined that the compressor operation has not met the preset condition, the compressor is controlled to operate at a reduced frequency, and the process returns to the step of obtaining the current second temperature of the indoor heat exchanger. Based on this, the accuracy of reliability risk identification after compressor frequency adjustment can be further improved, thereby ensuring that the indoor fan speed can be accurately and timely adjusted to the target speed value while improving the reliability of compressor operation.

[0071] Furthermore, based on the above embodiments, another embodiment of the control method for the air conditioner of this application is proposed. In this embodiment, reference is made to... Figure 3 The control method for the air conditioner further includes:

[0072] Step S11: When the air conditioner is in heating operation, when there is a speed adjustment command for the indoor fan, the target speed adjustment value is obtained. The target speed adjustment value is the target parameter that the indoor fan needs to achieve when its speed is adjusted from the current speed to the target speed value.

[0073] In this embodiment, the target speed adjustment value is the deviation between the target speed value and the current speed of the indoor fan. In other embodiments, the target speed adjustment value may also be the speed adjustment rate required for the indoor fan to adjust from the current speed to the target speed value.

[0074] Step S12: When the target speed adjustment value is greater than the preset speed adjustment value, the step of determining the target frequency of the air conditioner's compressor based on the target speed value is executed.

[0075] The preset speed adjustment value can be a fixed parameter set in advance, or it can be a parameter determined according to the actual operating conditions of the air conditioner (such as indoor ambient temperature and / or outdoor ambient temperature).

[0076] In this embodiment, the indoor ambient temperature of the space where the air conditioner operates can be obtained; the preset speed adjustment value is determined based on the indoor ambient temperature. Different indoor ambient temperatures correspond to different preset speed adjustment values, and the preset speed adjustment value and the indoor ambient temperature can be negatively correlated. That is, the preset speed adjustment value decreases as the indoor ambient temperature increases, and increases as the indoor ambient temperature decreases. Determining the preset speed adjustment value by using the indoor ambient temperature ensures that the comparison between the preset speed adjustment value and the target speed adjustment value can accurately identify the risk of compressor reliability problems, thereby ensuring that when a risk is identified, the compressor frequency is adjusted first, followed by the indoor fan speed, to improve the compressor's operational reliability.

[0077] In this embodiment, when the target speed adjustment value is greater than the preset speed adjustment value, it indicates that the load of the indoor unit has changed significantly during the indoor fan speed adjustment process. At this time, adjusting the indoor fan speed may easily cause the compressor to malfunction and shut down for protection. Based on this, the compressor is first controlled to run at the target frequency before the indoor fan speed is adjusted to the required target speed value. This ensures that the reliability of the compressor is effectively improved during the indoor fan speed adjustment process, while also improving the comfort of indoor users.

[0078] Furthermore, based on any of the above embodiments, another embodiment of the control method for the air conditioner of this application is proposed. In this embodiment, reference is made to... Figure 4 The control method for the air conditioner may further include:

[0079] Step S101: When the air conditioner is in heating operation, when there is a speed adjustment command for the indoor fan, the target speed adjustment value is obtained. The target speed adjustment value is the target parameter that the indoor fan needs to achieve when its speed is adjusted from the current speed to the target speed value.

[0080] In this embodiment, the target speed adjustment value is the deviation between the target speed value and the current speed of the indoor fan. In other embodiments, the target speed adjustment value may also be the speed adjustment rate required for the indoor fan to adjust from the current speed to the target speed value.

[0081] Step S102: When the target speed adjustment value is greater than the preset speed adjustment value, obtain the current first temperature of the indoor heat exchanger;

[0082] The first temperature can be obtained by reading the data detected by the temperature sensor on the indoor heat exchanger in real time.

[0083] The preset speed adjustment value can be a fixed parameter set in advance, or it can be a parameter determined according to the actual operating conditions of the air conditioner (such as indoor ambient temperature and / or outdoor ambient temperature).

[0084] In this embodiment, the indoor ambient temperature of the space where the air conditioner operates can be obtained; the preset speed adjustment value is determined based on the indoor ambient temperature. Different indoor ambient temperatures correspond to different preset speed adjustment values, and the preset speed adjustment value and the indoor ambient temperature can be negatively correlated. That is, the preset speed adjustment value decreases as the indoor ambient temperature increases, and increases as the indoor ambient temperature decreases. Determining the preset speed adjustment value by using the indoor ambient temperature ensures that the comparison between the preset speed adjustment value and the target speed adjustment value can accurately identify the risk of compressor reliability problems, thereby ensuring that when a risk is identified, the compressor frequency is adjusted first, followed by the indoor fan speed, to improve the compressor's operational reliability.

[0085] Step S103: When the first temperature is greater than the first preset temperature, the step of determining the target frequency of the air conditioner's compressor based on the target rotation speed value is executed.

[0086] The first preset temperature can be a fixed temperature set in advance, or it can be a temperature determined according to the actual operating conditions of the air conditioner (such as the indoor ambient temperature).

[0087] In this embodiment, when the target speed adjustment value of the indoor fan is too high, the comparison between the first temperature and the first preset temperature can accurately identify whether the indoor unit is under high load. When the first temperature is greater than the first preset temperature, it indicates that the indoor unit is currently under high load. If the indoor fan speed is directly adjusted at this time, it is easy to cause overload fluctuations. Therefore, at this time, the compressor is controlled to run according to the target frequency first, and then the indoor fan speed is adjusted to the required target speed value. This ensures that the compressor will not be abnormally shut down due to overload fluctuations during the adjustment of the indoor fan speed, thereby effectively improving the reliability of the compressor and improving the comfort of indoor users.

[0088] Furthermore, in the above embodiments, after the step of obtaining the target speed adjustment value, the method further includes: when the target speed value is less than the preset speed modulation value, or when the first temperature is less than or equal to the first preset temperature, controlling the indoor fan to adjust to the target speed value; when the indoor fan is running at the target speed value, controlling the compressor to run according to the target frequency.

[0089] In this embodiment, when the target speed value is less than the preset speed adjustment value, it indicates that the indoor unit load will not fluctuate significantly during the indoor fan speed adjustment process. When the current first temperature of the indoor heat exchanger is less than or equal to the first preset temperature, it indicates that the indoor unit is not under high load. In both cases, directly adjusting the indoor fan speed to the target speed value will not cause the compressor to malfunction and trigger protection. In this case, the indoor fan speed is first adjusted to the target speed value, and then the compressor frequency is further adjusted to the target frequency that matches the target speed value. This ensures that the airflow from the indoor unit can be quickly adjusted to meet the user's comfort needs, so as to ensure that the fan speed adjustment can respond quickly and effectively improve the user's comfort.

[0090] To better understand the technical solutions in the above embodiments of the air conditioner control method, the following explanation uses a specific application:

[0091] I. When the indoor unit receives a signal that the indoor unit speed has decreased (i.e., the speed adjustment command mentioned above), it determines the target speed change (i.e., the target speed adjustment value mentioned above). If the target speed change is greater than 40 (i.e., the preset speed adjustment value mentioned above), it proceeds to step II. Otherwise, it is adjusted in the normal mode. A large speed change indicates that there will be a large load change. The threshold for the change is not a fixed value. In this example, the threshold is set to 40.

[0092] II. Determine the current indoor evaporator coil temperature T2 (i.e., the first temperature mentioned above). If T2 > K1 (i.e., the first preset temperature mentioned above), it means that the current load is already high. At this time, directly adjusting the indoor fan speed is prone to overload fluctuation. Therefore, when T2 > K1, proceed to step III. Otherwise, adjust according to the normal mode. K1 is determined according to different models. In this example, K1 = 46.

[0093] III. Adjust the compressor frequency to the upper limit frequency Fn of the fan corresponding to the target speed (i.e., the target frequency mentioned above). After 30 seconds (i.e., the preset time mentioned above), proceed to step IV. The adjustment time (i.e., the preset time mentioned above) is not fixed and is determined according to different models. In this example, the adjustment time is 30 seconds.

[0094] IV. Adjust the indoor fan speed to the target speed.

[0095] In the standard mode, the indoor fan speed is adjusted in real time, and the compressor frequency is adjusted according to the frequency limit of the current fan speed.

[0096] In step III, after adjusting the compressor frequency to Fn, the determination can also be made based on whether the current T2 value (i.e., the second temperature) has dropped to a certain level. For example, after the compressor frequency is reduced for a period of time, whether the current T2 value drops to a certain threshold (i.e., the second preset temperature mentioned above). If so, the internal fan speed is adjusted to the target speed value. If not, the compressor frequency is reduced until T2 drops to the corresponding threshold.

[0097] Furthermore, this invention also proposes a computer-readable storage medium storing a control program for an air conditioner. When the control program is executed by a processor, it implements the relevant steps of any of the above-described air conditioner control methods.

[0098] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0099] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0100] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0101] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner includes the following steps: When the air conditioner is in heating mode, when there is a speed adjustment command for the indoor fan, the target speed adjustment value is obtained. The target speed adjustment value is the target parameter that the indoor fan needs to achieve when it is adjusted from the current speed to the target speed value. When the target speed adjustment value is greater than the preset speed adjustment value, the current first temperature of the indoor heat exchanger is obtained; When the first temperature is greater than the first preset temperature, the target frequency of the air conditioner's compressor is determined according to the target speed value, wherein the target speed value is the target value that the indoor fan needs to achieve after the speed adjustment command requires the speed adjustment of the indoor fan. The compressor is controlled to operate according to the target frequency; When the compressor reaches the preset operating conditions, the indoor fan is controlled to adjust to the target speed value. The control method for the air conditioner also includes: Obtain the indoor ambient temperature of the space where the air conditioner operates; The preset rotation speed adjustment value is determined based on the indoor ambient temperature.

2. The control method for an air conditioner as described in claim 1, characterized in that, After the step of obtaining the target speed adjustment value, the method further includes: When the target rotational speed is less than the preset rotational speed adjustment value, or when the first temperature is less than or equal to the first preset temperature, the indoor fan is controlled to adjust to the target rotational speed value. When the indoor fan is running at the target speed, the compressor is controlled to operate according to the target frequency.

3. The control method for an air conditioner as described in claim 1 or 2, characterized in that, Following the step of controlling the compressor to operate according to the target frequency, the method further includes: When the duration of compressor operation controlled according to the target frequency reaches a preset duration, it is determined that the compressor operation has met the preset condition.

4. The control method for an air conditioner as described in claim 1 or 2, characterized in that, Following the step of controlling the compressor to operate according to the target frequency, the method further includes: Obtain the current second temperature of the indoor heat exchanger; When the second temperature is lower than the second preset temperature, it is determined that the compressor operation has reached the preset condition.

5. The control method for an air conditioner as described in claim 4, characterized in that, After the step of obtaining the current second temperature of the indoor heat exchanger, the method further includes: When the second temperature is greater than or equal to the second preset temperature, the compressor is controlled to operate at a reduced frequency, and the process returns to the step of obtaining the current second temperature of the indoor heat exchanger.

6. An air conditioner, characterized in that, The air conditioner includes: compressor; Indoor fan; A control device is provided, wherein the compressor and the indoor fan are both connected to the control device. The control device includes: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the air conditioner control program is executed by the processor, it implements the steps of the air conditioner control method as described in any one of claims 1 to 5.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a control program for an air conditioner, which, when executed by a processor, implements the steps of the control method for an air conditioner as described in any one of claims 1 to 5.

Citation Information

Patent Citations

  • Air conditioner and control method and device thereof

    CN110848925A