Control method for air conditioner and air conditioner

Abstract

The present application relates to the technical field of household appliances, and particularly provides a control method for an air conditioner and the air conditioner, aiming at solving the problem that the existing air conditioner cannot automatically switch the quick adjustment mode of indoor environment temperature and the mode of preventing direct blowing, resulting in poor user experience. For this purpose, the air conditioner of the present application comprises an indoor unit, an outdoor unit, a first sensor for detecting the environment temperature in the room, and a second sensor for detecting the air outlet temperature of the indoor unit. The control method comprises: controlling the first sensor to obtain the environment temperature in the room, comparing the environment temperature with a first preset temperature, prioritizing the mode of preventing direct blowing and the quick cooling mode based on the comparison result, and executing the control mode with higher priority based on the sorting result, so that the air conditioner can automatically select to enter the quick cooling mode or the mode of preventing direct blowing according to the environment temperature during the use of the air conditioner, thereby improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and specifically provides a control method for an air conditioner and the air conditioner. BACKGROUND

[0002] In the running process of a household air conditioner, due to the fact that the air conditioner cannot reasonably control the switching of the working mode of the air conditioner, the following two scenarios often occur. One is that the anti-direct-blowing mode is directly started after starting, but due to the poor refrigeration effect of the anti-direct-blowing mode, the indoor environment temperature decreases slowly, which makes the user experience poor.

[0003] The other is to directly start a mode for quickly reducing the indoor environment temperature, but due to the fact that the mode cannot accurately determine the priority of the user's demand under various temperature conditions, the user is still directly blown in the case where the temperature is already appropriate, which makes the user experience poor.

[0004] How to balance the quick adjustment of the indoor environment temperature and the anti-direct-blowing mode, and make them switch more smoothly through reasonable control, so as to quickly reduce the indoor temperature and avoid being directly blown by the user on the basis of the appropriate temperature, has become a technical problem to be solved by those skilled in the art.

[0005] Therefore, there is a need for a new control method for an air conditioner and the air conditioner to solve the above problems. SUMMARY

[0006] The present application aims to solve the above technical problems, i.e., to solve the problem that the existing air conditioner cannot automatically switch the quick adjustment mode of the indoor environment temperature and the anti-direct-blowing mode, resulting in poor user experience.

[0007] In a first aspect, the present application provides a control method for an air conditioner, the air conditioner comprising an indoor unit, an outdoor unit, a first sensor for detecting the environment temperature in the room, and a second sensor for detecting the outlet temperature of the indoor unit, the control method comprising: controlling the first sensor to obtain the environment temperature in the room; comparing the environment temperature with a first preset temperature; based on the comparison result, prioritizing the anti-direct-blowing mode and the quick cooling mode; and based on the sorting result, executing the control mode with high priority.

[0008] In the specific embodiment of the above control method for an air conditioner, the step of "prioritizing the anti-direct-blowing mode and the quick cooling mode based on the comparison result" further comprises: when the environment temperature is less than or equal to the first preset temperature, controlling the priority of the anti-direct-blowing mode to be higher than that of the quick cooling mode; and executing the anti-direct-blowing mode.

[0009] In a specific embodiment of the control method for the air conditioner described above, the anti-direct-blow mode includes: controlling the second sensor to acquire the air outlet temperature of the indoor unit; comparing the air outlet temperature with a second preset temperature; and adjusting the operating frequency of the outdoor unit based on the comparison result.

[0010] In a specific embodiment of the control method for the air conditioner described above, the step of "adjusting the operating frequency of the outdoor unit based on the comparison result" further includes: when the outlet air temperature is greater than or equal to the second preset temperature, the operating frequency of the outdoor unit is not adjusted.

[0011] In a specific embodiment of the control method for the air conditioner described above, the step of "adjusting the operating frequency of the outdoor unit based on the comparison result" further includes: when the outlet air temperature is lower than the second preset temperature, the operating frequency of the outdoor unit is reduced by a preset step size.

[0012] In the specific implementation of the control method for the air conditioner described above, the step of "prioritizing the anti-direct-blow mode and the rapid cooling mode based on the comparison results" further includes: when the ambient temperature is greater than the first preset temperature, controlling the rapid cooling mode to have a higher priority than the anti-direct-blow mode; and executing the rapid cooling mode.

[0013] In a specific embodiment of the control method for the air conditioner described above, the rapid cooling mode includes: increasing the operating frequency of the outdoor unit by a preset step size.

[0014] In a specific embodiment of the control method for the air conditioner described above, the anti-direct-blow mode further includes: controlling the second sensor to acquire the air outlet temperature of the indoor unit; comparing the air outlet temperature with a second preset temperature; and adjusting the air outlet direction, air outlet speed, and air outlet size of the indoor unit based on the comparison result.

[0015] In a specific embodiment of the control method for the air conditioner described above, the step of "adjusting the air outlet direction, air outlet speed, and air outlet size of the indoor unit based on the comparison result" further includes: when the air outlet temperature is greater than or equal to the second preset temperature, controlling the air outlet direction of the indoor unit to be downward, reducing the size of the air outlet of the indoor unit, and lowering the air outlet speed of the indoor unit; when the air outlet temperature is less than the second preset temperature, controlling the air outlet direction of the indoor unit to be upward.

[0016] The present invention also provides an air conditioner, the air conditioner comprising an indoor unit, an outdoor unit, a first sensor for detecting the indoor ambient temperature and a second sensor for detecting the outlet air temperature of the indoor unit, the air conditioner being capable of executing any of the above technical solutions for controlling an air conditioner.

[0017] By adopting the above technical solution, the present invention can rationally switch between the rapid cooling mode and the anti-direct blowing mode of the air conditioner during use based on priority judgment and rearrangement. Specifically, taking the cooling process of the air conditioner as an example, in order to provide users with a better user experience, while ensuring that the air conditioner can adjust the indoor ambient temperature to the expected temperature, it should avoid blowing unsuitable air conditioning air onto the user as much as possible. Based on this purpose, during the use of the air conditioner of the present invention, the air conditioner first controls the first sensor to obtain the indoor ambient temperature and compares the ambient temperature with a first preset temperature. When the current ambient temperature is higher than the first preset temperature, in order to make the indoor ambient temperature reach the first preset temperature as quickly as possible, the air conditioner selects the rapid cooling mode. The priority of the outdoor unit is adjusted to be higher than the anti-direct-blow mode, thus enabling the air conditioner to enter the rapid cooling mode. The air conditioner achieves the purpose of quickly reducing the indoor ambient temperature by increasing the operating frequency of the outdoor unit. On the other hand, when the current ambient temperature is less than or equal to the first preset temperature, it means that the ambient temperature is at a relatively comfortable level. Therefore, the air conditioner selects to adjust the priority of the anti-direct-blow mode to be higher than the rapid cooling mode, thus enabling the air conditioner to enter the anti-direct-blow mode. The air conditioner achieves the purpose of preventing direct blows by adjusting the operating frequency of the outdoor unit, as well as the air outlet direction, air outlet speed, and air outlet size of the indoor unit according to the air outlet temperature of the indoor unit. Thus, the air conditioner of the present invention can reasonably realize the switching between rapid cooling and anti-direct-blow modes during the use of the air conditioner, improving the user experience. Attached Figure Description

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a flowchart of a first embodiment of the control method for an air conditioner according to the present invention;

[0020] Figure 2 This is a flowchart of a second embodiment of the control method for an air conditioner according to the present invention;

[0021] Figure 3 This is a flowchart of a third embodiment of the control method for an air conditioner according to the present invention;

[0022] Figure 4 This is an overall flowchart of the control method for an air conditioner according to the present invention;

[0023] Figure 5 This is the main flowchart of the control method for an air conditioner according to the present invention. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0025] First, the control methods of existing air conditioners are described.

[0026] In the operation of existing air conditioners, due to the inability to properly control the switching of operating modes, two scenarios often occur: one is that the anti-direct-blow mode is activated immediately after startup, but because the cooling effect of the anti-direct-blow mode is poor and the indoor temperature drops slowly, the user experience is unpleasant; the other is that the rapid cooling mode is activated immediately after startup. During the rapid cooling process, the air outlet temperature of the indoor unit gradually decreases. When the outlet temperature is at a relatively comfortable level, the direct airflow from the air conditioner will not cause discomfort to the user. However, when the outlet temperature of the indoor unit gradually drops to a relatively low temperature, the cold airflow blowing directly on the user will cause discomfort. Therefore, this invention proposes a control method for air conditioners to solve the above problems.

[0027] like Figure 1 , Figure 4 , Figure 5 As shown, to address the problem that existing air conditioners cannot automatically switch between a rapid adjustment mode for indoor ambient temperature and an anti-direct-blowing mode, resulting in a poor user experience, the control method for air conditioners of this invention includes:

[0028] S01, Control the first sensor to acquire the indoor ambient temperature;

[0029] S02. Compare the ambient temperature with the first preset temperature;

[0030] S03. Based on the comparison results, prioritize the anti-direct-blowing mode and the rapid cooling mode.

[0031] Step S03 further includes:

[0032] S031. When the ambient temperature is less than or equal to the first preset temperature, the priority of the anti-direct-blow mode is higher than that of the rapid cooling mode.

[0033] S04. Based on the sorting results, execute the control mode with the highest priority;

[0034] Step S04 further includes:

[0035] S041, Execute anti-direct-blow mode;

[0036] Step S041 further includes:

[0037] S0411, Control the second sensor to obtain the air outlet temperature of the indoor unit;

[0038] S0412. Compare the outlet air temperature with the second preset temperature.

[0039] S04131. When the outlet air temperature is greater than or equal to the second preset temperature, the operating frequency of the outdoor unit will not be adjusted.

[0040] S04132. When the outlet air temperature is lower than the second preset temperature, the operating frequency of the outdoor unit will be reduced by a preset step size.

[0041] In the case of adopting the above implementation method, taking the cooling mode of the air conditioner as an example, after turning on the air conditioner, the user will set a first preset temperature as the target temperature. For example, the first preset temperature can be set to 24℃. In summer, 24℃ is the most comfortable temperature for the human body. Therefore, 24℃ is used as the judgment standard. After setting the first preset temperature, the air conditioner first controls the first sensor to obtain the indoor ambient temperature, and then compares the ambient temperature with the first preset temperature. When the ambient temperature is less than or equal to 24℃, it means that the indoor ambient temperature can meet the user's indoor cooling needs. Therefore, in order to avoid the cold air blown out of the indoor unit directly blowing on the user, the air conditioner controls the priority of the anti-direct blowing mode to be higher than the rapid cooling mode, and executes the anti-direct blowing mode. In the anti-direct-blow mode, the air conditioner first controls the second sensor to obtain the air outlet temperature of the indoor unit and compares the air outlet temperature with the second preset temperature. For example, the second preset temperature can be set to 20℃. When the air outlet temperature is greater than or equal to 20℃, the air blown out by the indoor unit will not make the user feel uncomfortable due to excessively low body temperature even if the air blown directly onto the user. Therefore, it is not necessary to adjust the operating frequency of the outdoor unit at this time. On the other hand, when the air outlet temperature of the indoor unit is less than 20℃, in order to avoid the low-temperature air blowing directly onto the user, this embodiment will control the outdoor unit to reduce the operating frequency of the indoor unit by a preset step size to reduce the air outlet temperature of the indoor unit. In order to prevent the frequency reduction from being too fast, the frequency reduction step size is 3 each time, and the operation is maintained for 5 minutes before judgment. The lowest frequency is 20pls.

[0042] The advantages of the above implementation method are as follows: By selectively controlling the air conditioner to enter the rapid cooling mode or the anti-direct blowing mode based on the comparison of indoor ambient temperature, air outlet temperature and preset values, a more intelligent service can be provided, bringing users a better user experience. In addition, by setting the number of steps and duration of each frequency reduction, it can be ensured that a single frequency reduction will not cause a significant change in the air outlet temperature of the indoor unit, further improving the user experience. At the same time, setting the number of frequency reduction steps is also conducive to achieving more accurate temperature control, avoiding over-temperature adjustment, and ensuring the accuracy of air conditioner temperature adjustment. Moreover, by setting a second preset temperature, it is ensured that the air outlet temperature of the indoor unit will not be too low, thereby further ensuring that the indoor ambient temperature will not be too low, and protecting the user experience.

[0043] Furthermore, those skilled in the art can adjust the values ​​of the first preset temperature and the second preset temperature, as well as the number of steps for each frequency adjustment, the maintenance time, and the minimum frequency, according to actual needs. These changes do not exceed the technical principles of this invention and are therefore included within the scope of protection of this invention.

[0044] The first embodiment of the present invention has been described above. The following refers to... Figure 2 , Figure 4 The second embodiment of the control method for an air conditioner of the present invention will be described.

[0045] like Figure 2 , Figure 4 As shown, in a second embodiment of the present invention, the control method for an air conditioner includes:

[0046] S01, Control the first sensor to acquire the indoor ambient temperature;

[0047] S02. Compare the ambient temperature with the first preset temperature;

[0048] S03. Based on the comparison results, prioritize the anti-direct-blowing mode and the rapid cooling mode.

[0049] Step S03 also includes:

[0050] S032. When the ambient temperature is higher than the first preset temperature, the priority of the rapid cooling mode is higher than that of the anti-direct-blow mode.

[0051] S04. Based on the sorting results, execute the control mode with the highest priority;

[0052] Step S04 further includes:

[0053] S042, Execute rapid cooling mode;

[0054] Step S042 further includes:

[0055] S0421. Increase the operating frequency of the outdoor unit with a preset step size.

[0056] In the above-described implementation, taking summer cooling as an example, as mentioned earlier, after the user sets the first preset temperature, the air conditioner first controls the first sensor to acquire the indoor ambient temperature, and then compares the ambient temperature with the first preset temperature. When the ambient temperature is greater than the first preset temperature (e.g., greater than 24°C), the system determines that the indoor ambient temperature is too high. Therefore, the air conditioner prioritizes the rapid cooling mode over the anti-direct-blow mode and executes the rapid cooling mode. In the rapid cooling mode, the air conditioner accelerates the reduction of the indoor ambient temperature by increasing the operating frequency of the outdoor unit. To prevent the frequency from increasing too quickly, the frequency increase step is 3, and the system maintains operation for 5 minutes before making a judgment. The highest frequency is 80 pls, thereby improving the air conditioner's cooling capacity. Similarly, those skilled in the art can adjust the parameters for adjusting the outdoor unit's operating frequency according to the needs of actual use, and these changes are all within the scope of protection of this invention.

[0057] The advantages of the above implementation method are as follows: Based on the experience of daily use of air conditioners, it is known that when a user turns on the cooling function of the air conditioner, the indoor ambient temperature is generally at a relatively high level. At this time, the user's most urgent need is to quickly lower the indoor ambient temperature. Therefore, when the system detects that the indoor ambient temperature is higher than the first preset temperature, the priority of controlling the rapid cooling mode is higher than the anti-direct-blow mode. In this way, the user experience can be taken into account to the greatest extent. Conversely, if the above control method is modified to prioritize entering the anti-direct-blow mode, it will not only fail to meet the user's actual needs, but also, since the airflow in the anti-direct-blow mode is not in the smoothest state, the cooling efficiency is low, which will also cause energy waste and reduce the user experience.

[0058] like Figure 3 , Figure 4 As shown, in the third embodiment of the present invention, the control method for an air conditioner includes:

[0059] S01, Control the first sensor to acquire the indoor ambient temperature;

[0060] S02. Compare the ambient temperature with the first preset temperature;

[0061] S03. Based on the comparison results, prioritize the anti-direct-blowing mode and the rapid cooling mode.

[0062] Step S03 further includes:

[0063] S031. When the ambient temperature is less than or equal to the first preset temperature, the priority of the anti-direct-blow mode is higher than that of the rapid cooling mode.

[0064] S04. Based on the sorting results, execute the control mode with the highest priority;

[0065] Step S04 further includes:

[0066] S041, Execute anti-direct-blow mode;

[0067] Step S041 further includes:

[0068] S0411, Control the second sensor to obtain the air outlet temperature of the indoor unit;

[0069] S0412. Compare the outlet air temperature with the second preset temperature.

[0070] S04133. When the outlet air temperature is greater than or equal to the second preset temperature, control the outlet air direction of the indoor unit to be diagonally downward, reduce the outlet air of the indoor unit and reduce the outlet air speed of the indoor unit.

[0071] S04134. When the outlet air temperature is lower than the second preset temperature, control the outlet air direction of the indoor unit to be obliquely upward.

[0072] As mentioned earlier, when the ambient temperature is less than or equal to the first preset temperature of 24°C, it indicates that the indoor ambient temperature already meets the user's cooling needs. Therefore, to prevent the cold air blown by the indoor unit from directly hitting the user, the air conditioner prioritizes the anti-direct-blow mode over the rapid cooling mode and executes the anti-direct-blow mode. The previous implementation mentioned increasing the indoor unit's outlet air temperature by reducing the outdoor unit's operating frequency to avoid the cold air blowing directly onto the user. This implementation proposes another solution to avoid the cold air blowing directly onto the user. In this implementation, in the anti-direct-blow mode, the air conditioner first controls the second sensor to obtain the indoor unit's outlet air temperature and compares it with the second preset temperature. For example, the second preset temperature can be set to 20°C. When the outlet air temperature is greater than or equal to 20°C, even if the air blown by the indoor unit directly hits the user, the user will not feel uncomfortable due to excessively low body temperature. Therefore, the air outlet direction of the indoor unit is controlled to be diagonally downwards and simultaneously... By reducing the size of the indoor unit's air outlet and lowering its airflow speed, the airflow from the indoor unit can be directed at the user at a suitable temperature, improving the user experience. Furthermore, by simultaneously reducing the size of the air outlet, the airflow volume is decreased, and by lowering the airflow speed, excessive airflow onto the user is avoided, preventing a negative impact on the user experience. On the other hand, when the indoor unit's outlet temperature is 20°C lower than the second preset temperature, the air conditioner controls the airflow direction to be angled upwards to prevent the cold air from blowing directly onto the user. This not only prevents the cold air from blowing directly onto the user, but also allows the denser, upward-blown air to fall under gravity, thus mixing more thoroughly with the warmer indoor air and improving the cooling efficiency of the indoor unit. Additionally, those skilled in the art can adjust the size of the indoor unit's air outlet and its airflow speed as needed during the upward-blowing process; all such modifications are within the scope of this invention.

[0073] In summary, this invention uses the indoor ambient temperature as the criterion for determining whether the air conditioner should enter rapid cooling mode or anti-direct-blow mode, and uses the indoor unit's outlet air temperature as the criterion for adjusting the air conditioner's anti-direct-blow mode. When the detected indoor ambient temperature is higher than the set target temperature, the air conditioner is controlled to prioritize entering rapid cooling mode, thereby achieving rapid adjustment of the indoor ambient temperature and ensuring the user experience as much as possible. When the detected indoor ambient temperature is lower than the set target temperature, it indicates that the air conditioner's cooling effect in the room is basically in place. To further improve the user experience, the air conditioner is controlled to enter anti-direct-blow mode. In anti-direct-blow mode, the air outlet direction, air volume, and air speed of the indoor unit are adjusted according to the indoor unit's outlet air temperature to prevent the low-temperature air from blowing directly onto the user. In addition, by detecting the indoor unit's outlet air temperature, when the indoor unit's outlet air temperature is too low, the operating frequency of the outdoor unit is appropriately reduced to ensure that the indoor ambient temperature does not become too low, further improving the user experience.

[0074] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0075] Finally, it should be noted that although this invention is described using the cooling mode of an air conditioner as an example, the control method for air conditioners of this invention can also be applied to the heating mode of an air conditioner. Only appropriate adjustments need to be made to the judgment logic in the control method. For example, when the air outlet temperature of the indoor unit is too high, direct airflow towards the user should be avoided. These simple modifications do not actually exceed the technical principles of this invention.

[0076] Those skilled in the art will understand that the aforementioned air conditioner also includes other well-known structures, such as processors, controllers, and memories. These memories include, but are not limited to, random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), volatile memory, non-volatile memory, serial memory, parallel memory, or registers. Processors include, but are not limited to, CPLD / FPGA, DSP, ARM processors, and MIPS processors. To avoid unnecessarily obscuring the embodiments of this disclosure, these well-known structures are not shown in the accompanying drawings.

[0077] In addition, the present invention also provides an air conditioner, which includes an indoor unit, an outdoor unit, a first sensor for detecting the indoor ambient temperature, and a second sensor for detecting the outlet air temperature of the indoor unit. The air conditioner is capable of executing any of the above-described control methods for air conditioners.

[0078] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, The air conditioner includes an indoor unit, an outdoor unit, a first sensor for detecting the indoor ambient temperature, and a second sensor for detecting the outlet air temperature of the indoor unit. The control method includes: Control the first sensor to acquire the indoor ambient temperature; Compare the ambient temperature with the first preset temperature; Based on the comparison results, the direct-blowing mode and the rapid cooling mode are prioritized. Based on the sorting results, execute the control mode with the highest priority; The step of "prioritizing the anti-direct-blowing mode and the rapid cooling mode based on the comparison results" further includes: When the ambient temperature is less than or equal to the first preset temperature, the priority of the anti-direct-blow mode is higher than that of the rapid cooling mode. Execute the anti-direct-blow mode; The anti-direct-blow mode includes: Control the second sensor to obtain the air outlet temperature of the indoor unit; Compare the outlet air temperature with the second preset temperature; The operating frequency of the outdoor unit is adjusted based on the comparison results.

2. The control method for an air conditioner according to claim 1, characterized in that, The step of "adjusting the operating frequency of the outdoor unit based on the comparison results" further includes: When the outlet air temperature is greater than or equal to the second preset temperature, the operating frequency of the outdoor unit will not be adjusted.

3. The control method for an air conditioner according to claim 1, characterized in that, The step of "adjusting the operating frequency of the outdoor unit based on the comparison results" further includes: When the outlet air temperature is lower than the second preset temperature, the operating frequency of the outdoor unit is reduced by a preset step.

4. The control method for an air conditioner according to claim 1, characterized in that, The step of "prioritizing the anti-direct-blow mode and the rapid cooling mode based on the comparison results" also includes: When the ambient temperature is greater than the first preset temperature, the priority of the rapid cooling mode is higher than that of the anti-direct-blow mode. Execute the rapid cooling mode.

5. The control method for an air conditioner according to claim 4, characterized in that, The rapid cooling mode includes: The operating frequency of the outdoor unit is increased by a preset step size.

6. The control method for an air conditioner according to claim 1, characterized in that, The anti-direct-blow mode also includes: Control the second sensor to obtain the air outlet temperature of the indoor unit; Compare the outlet air temperature with the second preset temperature; Based on the comparison results, the air outlet direction, air outlet speed, and air outlet size of the indoor unit are adjusted.

7. The control method for an air conditioner according to claim 6, characterized in that, The step of "adjusting the air outlet direction, air outlet speed, and air outlet size of the indoor unit based on the comparison results" further includes: When the outlet air temperature is greater than or equal to the second preset temperature, the outlet air direction of the indoor unit is controlled to be diagonally downward, the outlet air of the indoor unit is reduced and the outlet air speed of the indoor unit is reduced. When the outlet air temperature is lower than the second preset temperature, the outlet air direction of the indoor unit is controlled to be obliquely upward.

8. An air conditioner, characterized in that, The air conditioner includes an indoor unit, an outdoor unit, a first sensor for detecting the indoor ambient temperature, and a second sensor for detecting the outlet air temperature of the indoor unit. The air conditioner is capable of executing the control method for an air conditioner as described in any one of claims 1-7.

Images