Air conditioner external fan speed control method, device, air conditioner and storage medium

Abstract

The present application provides a method, device, air conditioner and storage medium for controlling the speed of an air conditioner's external fan, which relates to the field of air conditioning technology and solves the problem in the prior art that the air conditioner stops when the temperature reaches a certain level, affecting the comfort of the indoor temperature. The method for controlling the speed of an air conditioner's external fan comprises: obtaining the air conditioner's operating time, which is the accumulated operating time after the air conditioner is turned on this time; in response to the air conditioner's operating time being greater than a first time threshold, obtaining the indoor ambient temperature and the current speed of the air conditioner's internal fan; and controlling the speed of the air conditioner's external fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner's internal fan to extend the period when the air conditioner stops when the temperature reaches a certain level.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a method, device, electronic device, air conditioner and storage medium for controlling the rotation speed of an air conditioner outdoor fan. Background Art

[0002] After the existing air conditioner is turned on for a long time and the indoor temperature reaches the preset temperature, the cooling demand decreases and the air conditioner will enter a low-load state to save energy. After working at a low load for a period of time, the air conditioner may shut down due to reaching the preset temperature. If the air conditioner shuts down too many times due to reaching the preset temperature, the ambient temperature will fluctuate greatly, which will affect the indoor temperature comfort. Summary of the invention

[0003] In view of this, the present application provides a method and device for controlling the speed of an air conditioner outdoor fan, an air conditioner and a storage medium, so as to improve the problem that the air conditioner shuts down when the temperature reaches a certain level, thus affecting the indoor temperature comfort.

[0004] The technical solution adopted by this application to solve the above technical problems is:

[0005] In a first aspect, the present application provides a method for controlling the speed of an air conditioner outdoor fan, comprising:

[0006] Obtain the air conditioner operation time, where the air conditioner operation time is the cumulative operation time of the air conditioner after it is turned on this time;

[0007] In response to the air conditioner operating time being greater than a first time threshold, obtaining the indoor ambient temperature and the current speed of the air conditioner fan;

[0008] According to the temperature difference between the indoor ambient temperature and the preset temperature and the current rotation speed of the air conditioner inner fan, the rotation speed of the air conditioner outer fan is controlled to extend the period of the air conditioner stopping when reaching the temperature.

[0009] In some embodiments of the present application, controlling the speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner indoor fan includes:

[0010] In response to the temperature difference being less than a first temperature threshold, the speed of the air conditioner outdoor fan is controlled within a first speed range or a second speed range according to the current speed of the air conditioner indoor fan, wherein the upper limit of the first speed range is less than the lower limit of the second speed range;

[0011] In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, according to the current speed of the air conditioner inner fan, the speed of the air conditioner outer fan is controlled within the second speed range or the third speed range, and the upper limit of the second speed range is less than the lower limit of the third speed range;

[0012] In response to the temperature difference being greater than the second temperature threshold, the rotation speed of the air-conditioning outdoor fan is controlled within the third rotation speed range.

[0013] In some embodiments of the present application, in response to the temperature difference being less than a first temperature threshold, controlling the speed of the air conditioner outdoor fan within a first speed range or a second speed range according to the current speed of the air conditioner indoor fan includes:

[0014] In response to the temperature difference being less than the first temperature threshold and the current rotation speed of the air conditioner inner fan being equal to or greater than a preset rotation speed, controlling the rotation speed of the air conditioner outer fan to be within the second rotation speed range;

[0015] In response to the temperature difference being less than the first temperature threshold and the current rotation speed of the air conditioner interior fan being less than the preset rotation speed, the rotation speed of the air conditioner exterior fan is controlled within the first rotation speed range.

[0016] In some embodiments of the present application, in response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, controlling the speed of the air conditioner outdoor fan within the second speed range or the third speed range according to the current speed of the air conditioner indoor fan, includes:

[0017] In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current speed of the air conditioner inner fan being equal to or greater than a preset speed, controlling the speed of the air conditioner outer fan to be within the third speed range;

[0018] In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current rotation speed of the air conditioner interior fan being less than the preset rotation speed, the rotation speed of the air conditioner exterior fan is controlled within the second rotation speed range.

[0019] In some embodiments of the present application, the control method also includes: in response to the air conditioner operating time being less than or equal to the first time threshold, obtaining the supercooling degree of the air conditioner at preset time intervals, and controlling the speed of the air conditioner outdoor fan according to the relationship between the supercooling degree and the preset supercooling degree.

[0020] In some embodiments of the present application, controlling the rotation speed of the air conditioner outdoor fan according to the relationship between the acquired supercooling degree and the preset supercooling degree includes:

[0021] In response to the supercooling degree being greater than or equal to a first preset supercooling degree, controlling the rotation speed of the air conditioner outdoor fan to decrease;

[0022] In response to the supercooling degree being greater than or equal to a second preset supercooling degree and less than the first preset supercooling degree, the speed of the air conditioner outdoor fan remains unchanged;

[0023] In response to the supercooling degree being less than the second preset supercooling degree, the speed of the air-conditioning outdoor fan is controlled to increase.

[0024] In a second aspect, the present application provides a device for controlling the speed of an air conditioner outdoor fan, the device comprising:

[0025] The acquisition module is used to obtain the air conditioner operation time, the current speed of the air conditioner fan and the indoor ambient temperature;

[0026] A control module is used to respond to the air conditioner operating time being greater than a first time threshold; and control the speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner internal fan to extend the air conditioner temperature shutdown period.

[0027] In a third aspect, the present application provides an electronic device including a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are called and executed by the processor, the method for controlling the speed of an air conditioner outdoor fan as described in the first aspect is implemented.

[0028] In a fourth aspect, the present application provides an air conditioner, comprising an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner indoor unit being signal-connected to the air conditioner outdoor unit, the air conditioner indoor unit comprising an indoor fan controller and an air conditioner indoor fan, the indoor fan controller being electrically connected to the air conditioner indoor fan, the air conditioner outdoor unit comprising an air conditioner outdoor fan and the electronic device as described in the third aspect, the electronic device being an outdoor fan controller, the electronic device being electrically connected to the air conditioner outdoor fan, and the indoor fan controller being signal-connected to the outdoor fan controller.

[0029] In a fifth aspect, the present application provides a computer-readable storage medium storing a computer program. When the computer program is read and executed by a processor, the method for controlling the speed of an air conditioner outdoor fan as described in the first aspect is implemented.

[0030] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0031] The present application provides a control method, device, electronic device, air conditioner and storage medium for the speed of the external fan of the air conditioner. In some embodiments of the present application, by obtaining the operating time of the air conditioner and comparing the obtained operating time with the first time threshold, it is determined whether the current air conditioner is in a low-load operating state. The longer the air conditioner is in operation, the easier it is to enter the low-load operating state. In detail, when it is determined that the operating time of the air conditioner is greater than the first time threshold, the indoor ambient temperature and the speed of the current air conditioner internal fan are obtained; the obtained indoor ambient temperature is then compared with the preset temperature, and the speed of the external fan of the air conditioner is controlled according to the speed of the current air conditioner internal fan. By controlling the speed of the external fan of the air conditioner, the effect of controlling the degree of supercooling can be achieved, so that by changing the degree of supercooling, the air conditioner is prevented from entering a low-load operation because the room temperature reaches the set temperature, which helps to extend the period of the air conditioner stopping when reaching the temperature, reduce the number of times the air conditioner stops when reaching the temperature during the operation of the air conditioner, eliminate the fluctuation of the ambient temperature as much as possible, and improve the comfort of the indoor temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but are not intended to limit the present application, wherein:

[0033] Figure 1 A flow chart of a method for controlling the speed of an air conditioner outdoor fan provided in this application;

[0034] Figure 2 A schematic diagram of the process of step S3 provided in this application;

[0035] Figure 3 This is a schematic diagram of the structure of the control device provided in this application.

[0036] Description of reference numerals:

[0037] 1- Acquisition module; 2- Control module. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the application, the word "exemplary" is used to mean "serving as an example, illustration, or description". Any embodiment described in the present application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in the present application.

[0041] An embodiment of the present application provides an electronic device, including a processor and a memory. The processor and the memory are connected via a communication bus. The memory stores computer-readable instructions. The processor can call and execute the computer-readable instructions from the memory to implement the control method of the speed of the air conditioner outdoor fan described below. Based on the same inventive concept, an embodiment of the present application also provides an air conditioner, which includes an air conditioner indoor unit and an air conditioner outdoor unit. The air conditioner indoor unit is signal-connected to the air conditioner outdoor unit. The air conditioner indoor unit includes an air conditioner indoor fan, an indoor fan controller and a timer. The air conditioner indoor fan is electrically connected to the indoor fan controller, and the indoor fan controller is used to obtain and control the speed of the air conditioner indoor fan. The timer is used to calculate the cumulative running time after the air conditioner is turned on this time. The air conditioner outdoor unit includes an evaporator, an air conditioner outdoor fan, an outdoor fan controller, a first temperature sensor and a second temperature sensor. The outdoor fan controller can be the aforementioned electronic device, which is used to control the speed of the air conditioner outdoor fan. The first temperature sensor is arranged at the end of the evaporator pipe to detect the temperature at the end of the evaporator; the second temperature sensor is arranged in the middle of the evaporator pipe to detect the temperature in the middle of the evaporator, and the difference between the two temperatures is the supercooling degree of the air conditioner. An indoor temperature sensor is also provided indoors to detect the indoor ambient temperature. The indoor temperature sensor can be provided somewhere in the room or on the air conditioner housing. The timer and the indoor temperature sensor are both connected to the internal fan controller signal. The communication connection between the indoor temperature sensor, the timer and the internal fan controller can be connected by wires or by a local area network or Bluetooth wireless connection.

[0042] In addition, the internal fan controller is connected to the external fan controller by signal, so that the external fan controller can control the speed of the external fan of the air conditioner according to the information output by the internal fan controller. The signal connection here can be in a variety of ways, such as: directly connected through wires, or wirelessly connected through a local area network, or communicated through a Bluetooth connection.

[0043] See also Figure 1 In one embodiment of the present application, a method for controlling the speed of an air conditioner external fan is disclosed, which can be applied to the aforementioned electronic device. The control method includes the following steps.

[0044] S1. Obtain the air conditioner operation time, where the air conditioner operation time is the accumulated operation time after the air conditioner is turned on this time;

[0045] In some embodiments, the operating time of the air conditioner can be directly measured by a processor or timer built into the air conditioner.

[0046] S2, in response to the air conditioner running time being greater than the first time threshold, obtaining the indoor ambient temperature and the current speed of the fan in the air conditioner;

[0047] The first duration threshold can be set in advance. After obtaining the air conditioner operation time, the processor can compare the obtained air conditioner operation time with the first duration threshold. When the air conditioner operation time is greater than the first duration threshold, it means that the current air conditioner operation time is relatively long, and the indoor ambient temperature is likely to be near the preset temperature. At this time, the processor obtains the indoor ambient temperature and the current speed of the air conditioner internal fan to determine whether the indoor ambient temperature is close to the preset temperature. Among them, the indoor ambient temperature is obtained by the indoor temperature sensor; the current speed of the air conditioner internal fan is obtained by the internal fan controller; the air conditioner operation time is obtained by the timer. After these parameters are obtained, they can be transmitted to the external fan controller via the internal fan controller.

[0048] S3. According to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner's internal fan, the speed of the air conditioner's external fan is controlled to extend the air conditioner's temperature-reaching shutdown period. The speed of the air conditioner's external fan is mainly controlled by the external fan controller. The internal fan controller inputs the corresponding information into the external fan controller, and the external fan controller controls the speed of the air conditioner's external fan according to the received information, so that the speed of the air conditioner's external fan meets the current air conditioner operating conditions, so as to extend the air conditioner's temperature-reaching shutdown period.

[0049] This method mainly distinguishes different control methods according to different air conditioning capacity requirements to improve reliability. When the indoor ambient temperature is significantly different from the air conditioning set temperature, the current mode of control is continued. At this time, the air conditioning capacity requirement is large and the air conditioner will not shut down due to reaching the temperature. When the indoor ambient temperature is slightly different from the air conditioning set temperature, the speed of the air conditioner's outdoor fan is adjusted to adjust the cooling capacity output and extend the shutdown period due to reaching the temperature.

[0050] See also Figure 2 Regarding the control of the speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner indoor fan, the specific method is:

[0051] S31. In response to the temperature difference being less than a first temperature threshold, the speed of the air conditioner outdoor fan is controlled within a first speed range or a second speed range according to the current speed of the air conditioner indoor fan, and the upper limit value of the first speed range is less than the lower limit value of the second speed range.

[0052] In this embodiment, the first temperature threshold value may be 4°C, that is, if the temperature difference is less than 4°C, it means that the current temperature difference is small, the indoor ambient temperature is close to the preset temperature, and there is a possibility of temperature shutdown. It is necessary to control the speed of the external fan to prevent the air conditioner from entering the temperature shutdown state. As for the control of the speed of the external fan, it is also necessary to control the speed of the external fan within the first speed range or the second speed range according to the current speed of the internal fan of the air conditioner. In this embodiment, the external fan of the air conditioner has at least three speed ranges, namely the first speed range, the second speed range, and the third speed range. For the first speed range, it corresponds to the low wind speed of the external fan of the air conditioner; for the second speed range, it corresponds to the middle wind speed of the external fan of the air conditioner; for the third speed range, it corresponds to the high wind speed of the external fan of the air conditioner.

[0053] S32. In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, the speed of the air conditioner outdoor fan is controlled within the second speed range or the third speed range according to the current speed of the air conditioner indoor fan, and the upper limit value of the second speed range is less than the lower limit value of the third speed range.

[0054] In this embodiment, the second temperature threshold may be 8°C. If the temperature difference is greater than 4°C and less than 8°C, the speed of the air conditioner's external fan is controlled within the second speed range or the third speed range, i.e., at the middle or high speed range, according to the current speed of the air conditioner's internal fan. Because the temperature difference at this time is not too different from the first temperature threshold, nor is it particularly close to the first temperature threshold, it means that the air conditioner is still in a working state of adjusting the temperature so that the indoor ambient temperature is as close to the preset temperature as possible. Therefore, the speed of the external fan needs to be controlled at the middle or high speed range to avoid insufficient cooling capacity due to too low speed of the external fan, which affects the ambient temperature comfort.

[0055] S33: In response to the temperature difference being greater than the second temperature threshold, controlling the rotation speed of the air conditioner outdoor fan to be within a third rotation speed range.

[0056] In this embodiment, if the temperature difference is greater than 8°C, it means that the internal environment temperature is far from the preset temperature, and the air conditioner needs to be in a continuous cooling working state, and the required cooling capacity is large. Therefore, at this time, no matter what speed the air conditioner indoor unit is at, the speed of the air conditioner outdoor unit is controlled in the third speed range, that is, the high wind speed, to provide more cooling capacity, accelerate the indoor environment temperature to approach the preset temperature, and improve the cooling efficiency.

[0057] The step of controlling the speed of the air conditioner outdoor fan within the first speed range or the second speed range according to the current speed of the air conditioner indoor fan in response to the temperature difference being less than the first temperature threshold comprises:

[0058] In response to the temperature difference being less than the first temperature threshold and the current rotation speed of the air conditioner interior fan being equal to or greater than the preset rotation speed, the rotation speed of the air conditioner exterior fan is controlled within a second rotation speed range.

[0059] Because the temperature difference is less than the first temperature threshold, that is, less than 4°C, it means that the current indoor ambient temperature is close to the preset temperature and has basically reached the preset temperature. In order to avoid the air conditioner from shutting down due to reaching the temperature, it is necessary to ensure that the air conditioner's outdoor fan is in continuous rotation. However, because the indoor ambient temperature is close to the preset temperature, the air conditioner's outdoor fan cannot be in a high gear. It is specifically determined based on the current speed of the air conditioner's indoor fan. If the current speed of the air conditioner's indoor fan is equal to or greater than the preset speed, the speed of the air conditioner's outdoor fan is controlled in the second speed range, that is, the middle speed range, to avoid a large difference in speed between the air conditioner's indoor fan and the air conditioner's outdoor fan, and a too small speed of the air conditioner's outdoor fan. The cooling capacity generated is insufficient to maintain the indoor ambient temperature close to the preset temperature, resulting in frequent fluctuations in ambient temperature and affecting the user experience; at the same time, it can also avoid the air conditioner's outdoor fan from shutting down due to reaching the temperature.

[0060] In response to the temperature difference being less than a first temperature threshold and the current rotation speed of the air conditioner inner fan being less than a preset rotation speed, the rotation speed of the air conditioner outer fan is controlled within a first rotation speed range.

[0061] Similarly, since the temperature difference is less than the first temperature threshold, it means that the current indoor ambient temperature is close to the preset temperature and has basically reached the preset temperature. Since the current speed of the air-conditioning fan is less than the preset speed, it means that to maintain the current indoor ambient temperature and make the indoor ambient temperature close to or the same as the preset temperature for a long time, the required cooling capacity is less than that when the current speed of the air-conditioning fan is greater than or equal to the preset speed. Therefore, the speed of the air-conditioning outside fan is controlled within the first speed range, that is, the low wind speed, to meet the cooling capacity demand and avoid the air-conditioning outside fan from shutting down due to reaching the temperature. By controlling the speed of the air-conditioning outside fan according to the relationship between the temperature difference and the temperature threshold and the current speed of the air-conditioning fan, the air-conditioning shutdown period can be extended as much as possible, while also achieving the effect of saving energy and reducing the waste of cooling capacity.

[0062] In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, the step of controlling the speed of the air conditioner outdoor fan within the second speed range or the third speed range according to the current speed of the air conditioner indoor fan includes:

[0063] In response to the temperature difference being greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current speed of the air conditioner inner fan being equal to or greater than the preset speed, the speed of the air conditioner outer fan is controlled within a third speed range.

[0064] Since the temperature difference is between the first temperature threshold and the second temperature threshold or equal to the first temperature threshold, it means that there is still a certain distance between the current indoor ambient temperature and the preset temperature, and more cooling capacity needs to be provided to change the indoor ambient temperature to make it close to the preset temperature. And because the current speed of the air conditioner's internal fan is equal to or greater than the preset speed, it can be seen that the current required cooling capacity is large. Therefore, the speed of the air conditioner's external fan is controlled to be in the third speed range, that is, the high wind speed, to provide more cooling capacity, so that the indoor ambient temperature approaches the preset temperature more quickly. Of course, at this time, because the indoor ambient temperature has not reached the preset temperature, there is no problem of temperature shutdown.

[0065] In response to the temperature difference being greater than a first temperature threshold and less than a second temperature threshold, and the current rotation speed of the air conditioner inner fan being less than a preset rotation speed, the rotation speed of the air conditioner outer fan is controlled within a second rotation speed range.

[0066] Similarly, since the current speed of the air conditioner's internal fan is lower than the preset speed, it means that the current indoor cooling demand has decreased, so the air conditioner's external fan speed is controlled in the second speed range, i.e. the middle speed. This ensures that sufficient cooling capacity can be provided to reduce the indoor ambient temperature to the preset temperature as quickly as possible, while preventing energy waste due to excessive speed of the air conditioner's external fan.

[0067] It should also be noted that the first temperature threshold of 4°C and the second temperature threshold of 8°C mentioned above are only examples and are not limitations on the temperature thresholds. According to actual conditions, the first temperature threshold and the second temperature threshold can be freely set.

[0068] The above has described the working process of the air conditioner outdoor fan when the air conditioner operation time is greater than the first time threshold. The following describes the working process of the air conditioner outdoor fan when the air conditioner operation time is less than or equal to the first time threshold:

[0069] Specifically, in response to the air conditioner running time being less than or equal to the first time threshold, the supercooling of the air conditioner is obtained every preset time, and the speed of the air conditioner outdoor fan is controlled according to the relationship between the obtained supercooling and the preset supercooling. Here, the first time threshold is set to 2 hours, and the preset time is set to 5 minutes, because the indoor ambient temperature of the air conditioner is generally close to the preset temperature after 2 hours of startup, and is in a state of being about to reach the temperature and shut down. At this time, the speed of the air conditioner outdoor fan is adjusted mainly according to the relationship between the indoor ambient temperature and the preset temperature. In other embodiments, the first time threshold and the preset time can be adjusted according to actual conditions. Generally speaking, after the air conditioner is configured, it is difficult to change its corresponding supercooling except for controlling the speed of the air conditioner outdoor fan. Specifically, the greater the speed of the outdoor fan, the greater the heat exchange of the condenser, the greater the supercooling, and the greater the cooling capacity. However, it cannot be said that in order to increase the cooling capacity, the speed of the outdoor fan is increased without limit, because the higher the speed, the higher the power. For energy saving considerations, we need to ensure that the cooling capacity provided is sufficient under the premise of saving energy as much as possible.

[0070] This embodiment mainly utilizes the relationship between the degree of supercooling and the preset degree of supercooling to determine the required cooling capacity at the moment, and then controls the rotation speed of the air conditioner outdoor fan to achieve the purpose of adjusting the degree of supercooling.

[0071] Wherein, controlling the rotation speed of the air conditioner outdoor fan according to the relationship between the acquired supercooling degree and the preset supercooling degree includes:

[0072] In response to the supercooling degree being greater than or equal to a first preset supercooling degree, the rotation speed of the air conditioner outdoor fan is controlled to decrease.

[0073] When the supercooling degree is greater than or equal to the first preset supercooling degree, it means that the cooling capacity is sufficient for the indoor ambient temperature at this time, or even exceeds the current required cooling capacity. Therefore, in order to avoid excessive cooling capacity and waste, the air conditioner outdoor fan speed is controlled to decrease to reduce the output of cooling capacity. The judgment is made once every preset time. If the supercooling degree is still greater than or equal to the first preset supercooling degree, the outdoor fan speed is continued to be controlled to decrease.

[0074] In response to the supercooling degree being greater than or equal to the second preset supercooling degree and less than the first preset supercooling degree, the rotation speed of the air conditioner outdoor fan remains unchanged.

[0075] When the supercooling degree is greater than or equal to the second preset supercooling degree and less than the first preset supercooling degree, it means that the cooling capacity is suitable for the indoor ambient temperature at this time, and the current speed of the air conditioner outdoor fan can be maintained. Similarly, the judgment is made every preset time.

[0076] In response to the supercooling degree being less than a second preset supercooling degree, the speed of the air conditioner outdoor fan is controlled to increase.

[0077] When the supercooling degree is less than the second preset supercooling degree, it means that the cooling capacity is insufficient compared to the indoor ambient temperature at this time, and the supercooling degree needs to be further increased to make the indoor ambient temperature close to the preset temperature. Therefore, when the supercooling degree is less than the second preset supercooling degree, the speed of the air conditioner outdoor fan is controlled to increase. In addition, the relationship between the supercooling degree and the preset supercooling degree is judged every 5 minutes. If the supercooling degree is still less than the second preset supercooling degree, the speed of the air conditioner outdoor fan is continued to be increased.

[0078] In some embodiments, a second duration threshold is also preset in the memory, and the second duration threshold is less than the first duration threshold. The second duration threshold serves as the time node for rapid cooling of the air conditioner, and the first duration threshold serves as the time node for the indoor ambient temperature to be close to the preset temperature. Specifically, in this embodiment, the time node for the indoor ambient temperature to be close to the preset temperature is 2 hours, and the second duration threshold is 0.5 hours. In other words, within 0.5 hours after the air conditioner is started, the speed of the air conditioner's outdoor fan is controlled within the third speed range, i.e., the high wind speed, to ensure that the air conditioner can quickly cool the indoor ambient temperature at this time; between 0.5 hours and 2 hours after the air conditioner is started, the speed of the air conditioner's outdoor fan is controlled according to the relationship between the supercooling degree at this time and the preset supercooling degree, to ensure that the indoor ambient temperature is comfortable while avoiding excessive speed of the air conditioner's outdoor fan, which causes energy waste.

[0079] It should be noted that, in some embodiments, the method for controlling the speed of the outdoor fan of the air conditioner can also be implemented by the cooperation of the indoor fan controller and the outdoor fan controller, for example, obtaining the operating time of the air conditioner, the indoor ambient temperature, and the current speed of the indoor fan of the air conditioner; comparing the operating time of the air conditioner with the first time threshold; subtracting the indoor ambient temperature from the preset temperature; comparing the temperature difference with the first and second temperature thresholds; comparing the current speed of the indoor fan with the preset speed; obtaining the degree of supercooling, and comparing the degree of supercooling with the preset degree of supercooling, etc. can be completed by the indoor fan controller, and then the control instruction is sent to the outdoor fan controller, and the outdoor fan controller controls the speed of the outdoor fan of the air conditioner based on the control instruction.

[0080] See also Figure 3Based on the same inventive concept, an embodiment of the present application further provides a device for controlling the speed of an air conditioner external fan, which is applied to the aforementioned electronic device. The device may include:

[0081] Acquisition module 1, used to obtain the air conditioner operation time, the current speed of the air conditioner fan and the indoor ambient temperature;

[0082] Control module 2 is used to respond to the air conditioner operating time being greater than a first time threshold; and control the speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner indoor fan to extend the air conditioner shutdown period when the temperature reaches a certain level.

[0083] In one embodiment, the control module 2 is specifically used to control the speed of the air-conditioning outdoor fan within the first speed range or the second speed range in response to the temperature difference being less than the first temperature threshold value, according to the current speed of the air-conditioning indoor fan, and the upper limit value of the first speed range is less than the lower limit value of the second speed range; in response to the temperature difference being greater than the first temperature threshold value and less than the second temperature threshold value, according to the current speed of the air-conditioning indoor fan, the speed of the air-conditioning outdoor fan is controlled within the second speed range or the third speed range, and the upper limit value of the second speed range is less than the lower limit value of the third speed range; and in response to the temperature difference being greater than the second temperature threshold value, the speed of the air-conditioning outdoor fan is controlled within the third speed range.

[0084] In one embodiment, the control module 2 is also used to control the speed of the air conditioner outdoor fan within the second speed range in response to the temperature difference being less than the first temperature threshold and the current speed of the air conditioner indoor fan being equal to or greater than the preset speed; and to control the speed of the air conditioner outdoor fan within the first speed range in response to the temperature difference being less than the first temperature threshold and the current speed of the air conditioner indoor fan being less than the preset speed.

[0085] In one embodiment, the control module 2 is also used to control the speed of the air conditioner outdoor fan within the third speed range in response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current speed of the air conditioner indoor fan being equal to or greater than the preset speed; and to control the speed of the air conditioner outdoor fan within the second speed range in response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current speed of the air conditioner indoor fan being less than the preset speed.

[0086] In one embodiment, the control module 2 is also used to obtain the supercooling degree of the air conditioner at preset time intervals in response to the air conditioner operating time being less than or equal to the first time threshold, and control the speed of the air conditioner outdoor fan according to the relationship between the supercooling degree and the preset supercooling degree.

[0087] In one embodiment, the control module 2 is specifically used to control the speed of the air-conditioning outdoor fan to decrease in response to the supercooling degree being greater than or equal to a first preset supercooling degree; in response to the supercooling degree being greater than or equal to a second preset supercooling degree and less than the first preset supercooling degree, the speed of the air-conditioning outdoor fan remains unchanged; in response to the supercooling degree being less than the second preset supercooling degree, the speed of the air-conditioning outdoor fan is controlled to increase.

[0088] It should be noted that the control device for the air conditioner outdoor fan speed provided in the embodiment of the present application corresponds to the control method mentioned above. In order to make the specification concise, the same or corresponding parts can refer to the embodiment of the control method mentioned above and will not be repeated here.

[0089] It is understood that the devices described above are only examples. The modules included therein may represent a module, a program segment or a portion of a code, wherein the module, program segment or a portion of a code contains one or more executable instructions for implementing a specified logical function, and may be implemented by a dedicated hardware-based system that performs a specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

[0090] Based on the same inventive concept, the present application also provides a computer-readable storage medium, in which the aforementioned method or device can be stored in the form of a computer program. When the computer program is read and executed by a processor, the aforementioned method for controlling the speed of the air conditioner outdoor fan is implemented.

[0091] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0092] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0093] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0094] In some embodiments, the numerical parameters used in the specification and claims are approximate values, which may vary according to the characteristics required for individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the method of general digit retention. Although the numerical domains and parameters used to confirm the breadth of the range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0095] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content of this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

Claims

1. A method for controlling the speed of an air conditioner external fan, characterized in that: include: Obtain the air conditioner operation time, where the air conditioner operation time is the cumulative operation time of the air conditioner after it is turned on this time; In response to the air conditioner operating time being greater than a first time threshold, obtaining the indoor ambient temperature and the current speed of the air conditioner fan; According to the temperature difference between the indoor ambient temperature and the preset temperature and the current rotation speed of the air conditioner inner fan, the rotation speed of the air conditioner outer fan is controlled to extend the period of the air conditioner stopping when reaching the temperature.

2. The method for controlling the speed of an air conditioner outdoor fan according to claim 1, characterized in that: The controlling the rotation speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current rotation speed of the air conditioner indoor fan comprises: In response to the temperature difference being less than a first temperature threshold, the speed of the air conditioner outdoor fan is controlled within a first speed range or a second speed range according to the current speed of the air conditioner indoor fan, wherein the upper limit of the first speed range is less than the lower limit of the second speed range; In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, according to the current speed of the air conditioner inner fan, the speed of the air conditioner outer fan is controlled within the second speed range or the third speed range, and the upper limit of the second speed range is less than the lower limit of the third speed range; In response to the temperature difference being greater than the second temperature threshold, the rotation speed of the air-conditioning outdoor fan is controlled within the third rotation speed range.

3. The method for controlling the speed of an air conditioner outdoor fan according to claim 2, characterized in that: In response to the temperature difference being less than a first temperature threshold, controlling the speed of the air conditioner outdoor fan within a first speed range or a second speed range according to the current speed of the air conditioner indoor fan, comprises: In response to the temperature difference being less than the first temperature threshold and the current rotation speed of the air conditioner inner fan being equal to or greater than a preset rotation speed, controlling the rotation speed of the air conditioner outer fan to be within the second rotation speed range; In response to the temperature difference being less than the first temperature threshold and the current rotation speed of the air conditioner interior fan being less than the preset rotation speed, the rotation speed of the air conditioner exterior fan is controlled within the first rotation speed range.

4. The method for controlling the speed of an air conditioner outdoor fan according to claim 2, characterized in that: In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, controlling the speed of the air conditioner outdoor fan within the second speed range or the third speed range according to the current speed of the air conditioner indoor fan, comprises: In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current speed of the air conditioner inner fan being equal to or greater than a preset speed, controlling the speed of the air conditioner outer fan to be within the third speed range; In response to the temperature difference being greater than the first temperature threshold and less than the second temperature threshold, and the current rotation speed of the air conditioner interior fan being less than the preset rotation speed, the rotation speed of the air conditioner exterior fan is controlled within the second rotation speed range.

5. The method for controlling the speed of an air conditioner outdoor fan according to claim 1, characterized in that: The control method further includes: in response to the air conditioner operating time being less than or equal to the first time threshold, obtaining the supercooling degree of the air conditioner at preset time intervals, and controlling the rotation speed of the air conditioner outdoor fan according to the relationship between the supercooling degree and a preset supercooling degree.

6. The method for controlling the speed of an air conditioner outdoor fan according to claim 5, characterized in that: The step of controlling the rotation speed of the air conditioner outdoor fan according to the relationship between the acquired supercooling degree and a preset supercooling degree comprises: In response to the supercooling degree being greater than or equal to a first preset supercooling degree, controlling the rotation speed of the air conditioner outdoor fan to decrease; In response to the supercooling degree being greater than or equal to a second preset supercooling degree and less than the first preset supercooling degree, the speed of the air conditioner outdoor fan remains unchanged; In response to the supercooling degree being less than the second preset supercooling degree, the speed of the air-conditioning outdoor fan is controlled to increase.

7. A device for controlling the speed of an air conditioner external fan, characterized in that: The device comprises: The acquisition module is used to obtain the air conditioner operation time, the current speed of the air conditioner fan and the indoor ambient temperature; A control module is used to respond to the air conditioner operating time being greater than a first time threshold; and control the speed of the air conditioner outdoor fan according to the temperature difference between the indoor ambient temperature and the preset temperature and the current speed of the air conditioner internal fan to extend the air conditioner temperature shutdown period.

8. An electronic device, characterized in that The method comprises a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are called and executed by the processor, the method according to any one of claims 1 to 6 is implemented.

9. An air conditioner, characterized in that: The air-conditioning indoor unit and the air-conditioning outdoor unit are connected with each other by signal, the air-conditioning indoor unit comprises an internal fan controller and an internal fan of the air-conditioning, the internal fan controller is electrically connected with the internal fan of the air-conditioning, the air-conditioning outdoor unit comprises an external fan of the air-conditioning and the electronic device as claimed in claim 8, the electronic device is an external fan controller, the electronic device is electrically connected with the external fan of the air-conditioning, and the internal fan controller is connected with the external fan controller by signal.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is read and executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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