Air conditioner, control method and device thereof, storage medium and computer program product

Abstract

The application discloses an air conditioner and a control method, device, storage medium and computer program product thereof. The method comprises the following steps: after the air conditioner is powered on, obtaining an initial detection value of condensate water on an indoor heat exchanger, a current detection value of the condensate water on the indoor heat exchanger, a current wind grade of an indoor fan and a current actual air volume; determining whether the indoor unit needs to be purified according to the initial detection value and the current detection value of the condensate water on the indoor heat exchanger; and / or determining whether the indoor unit needs to be purified according to the current wind grade of the indoor fan and the current actual air volume; if it is determined that the indoor unit needs to be purified, initiating a prompt message that the indoor unit needs to be purified, and / or controlling the air conditioner to execute a preset purification mode to reduce the accumulation amount of the condensate water on the indoor heat exchanger. According to the scheme, the accumulation of the condensate water on the surface of the indoor heat exchanger of the air conditioner is detected, the indoor unit is purified in advance, and the user experience is improved.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to an air conditioning control method, device, air conditioner, storage medium, and computer program product, and particularly to an air conditioning odor detection method, device, air conditioner, storage medium, and computer program product. Background Technology

[0002] Odor is always a major concern for users when using air conditioners. The odors emitted by air conditioners mainly come from the evaporator (i.e., the indoor heat exchanger) adsorbing odors from the indoor environment or from microorganisms growing in the air conditioner. Among these, the adsorption of environmental odors is mainly due to the evaporator condensate enriching odor substances from indoor air and microbial decomposition. After the condensate evaporates, the odor substances are blown into the room along with the water vapor, producing odors and affecting the user experience.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The purpose of this invention is to provide an air conditioner control method, device, air conditioner, storage medium, and computer program product to solve the problem that odor substances accumulate in the condensate of the indoor heat exchanger of the air conditioner, causing odors when blown into the room and affecting the user experience. The invention achieves the effect of detecting the condensate on the surface of the indoor heat exchanger and purifying the indoor unit in advance, thus preventing odors from the condensate from the indoor heat exchanger from being blown into the room and improving the user experience.

[0005] This invention provides a control method for an air conditioner. The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan. A capacitance detection unit is provided on the indoor heat exchanger. The value detected by the capacitance detection unit can characterize the detection value of condensate on the indoor heat exchanger. The control method of the air conditioner includes: when the air conditioner is powered on and turned on, acquiring the value detected by the capacitance detection unit and recording it as the initial detection value of condensate on the indoor heat exchanger; when the air conditioner is running after being turned on, acquiring the value detected by the capacitance detection unit and recording it as the current detection value of condensate on the indoor heat exchanger; and acquiring the current fan speed of the indoor fan and acquiring the... The system determines whether the indoor unit needs purification based on the current actual airflow of the indoor fan, the initial and current condensate levels on the indoor heat exchanger, and / or the current fan speed and actual airflow of the indoor fan. If purification is not required, the air conditioner continues to operate. If purification is required, a notification message indicating the need for purification is sent, and / or the air conditioner executes a preset purification mode to reduce the accumulation of condensate on the indoor heat exchanger.

[0006] In some implementations, determining whether the indoor unit needs purification based on the initial and current detection values ​​of the condensate on the indoor heat exchanger includes: determining whether the current detection value of the condensate on the indoor heat exchanger is less than the initial detection value; if the current detection value is less than the initial detection value, then purification of the indoor unit is required; if the current detection value is greater than or equal to the initial detection value, then purification of the indoor unit is not required.

[0007] In some implementations, determining whether the indoor unit needs purification based on the current fan speed and the current actual airflow of the indoor fan includes: determining the standard airflow corresponding to the same set fan speed as the current fan speed in the correspondence between the set fan speed and the set standard airflow in the correspondence as the current standard airflow of the indoor fan corresponding to the current fan speed; determining whether the current actual airflow of the indoor fan is less than the current standard airflow of the indoor fan; if the current actual airflow of the indoor fan is less than the current standard airflow of the indoor fan, then it is determined that the indoor unit needs purification; if the current actual airflow of the indoor fan is greater than or equal to the current standard airflow of the indoor fan, then it is determined that the indoor unit does not need purification.

[0008] In some embodiments, the capacitance detection unit includes: a capacitance sensor; wherein the capacitance sensor is disposed on the surface of one of two aluminum foils on the fins of the indoor heat exchanger; the value detected by the capacitance detection unit includes: the value detected by the capacitance sensor; the value detected by the capacitance sensor is used to characterize the amount of droplet condensate accumulated on the surface of the aluminum foil by droplet condensation.

[0009] In some embodiments, the number of capacitive sensors is one or more; wherein, the value detected by the capacitance detection unit includes: the average value of all the values ​​detected by the one or more capacitive sensors; when the number of capacitive sensors is two or more, the two or more capacitive sensors are arranged in an array on the indoor heat exchanger.

[0010] In some embodiments, the capacitance detection unit is disposed on the fins at the refrigerant inlet of the indoor heat exchanger; and / or, a heat insulation pad is disposed between the capacitance detection unit and the fins of the indoor heat exchanger.

[0011] In conjunction with the above method, another aspect of the present invention provides a control device for an air conditioner, wherein the indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitance detection unit is provided on the indoor heat exchanger; the value detected by the capacitance detection unit can characterize the detection value of condensate on the indoor heat exchanger; the control device for the air conditioner includes: an acquisition unit configured to, when the air conditioner is powered on and turned on, acquire the value detected by the capacitance detection unit and record it as the initial detection value of condensate on the indoor heat exchanger; when the air conditioner is running after being turned on, acquire the value detected by the capacitance detection unit and record it as the current detection value of condensate on the indoor heat exchanger; and acquire the current fan speed of the indoor fan and acquire the indoor fan speed. The control unit is configured to determine whether the indoor unit needs purification based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger; and / or, based on the current fan speed and the current actual airflow of the indoor fan, determine whether the indoor unit needs purification; the control unit is further configured to control the air conditioner to continue operating if it is determined that the indoor unit does not need purification; the control unit is further configured to initiate a prompt message indicating that the indoor unit needs purification if it is determined that the indoor unit needs purification, and / or control the air conditioner to execute a preset purification mode to reduce the accumulation of condensate on the indoor heat exchanger.

[0012] In some embodiments, the control unit determines whether the indoor unit needs to be purified based on the initial detection value of the condensate on the indoor heat exchanger and the current detection value of the condensate on the indoor heat exchanger. This includes: determining whether the current detection value of the condensate on the indoor heat exchanger is less than the initial detection value; if the current detection value of the condensate on the indoor heat exchanger is less than the initial detection value, then the indoor unit needs to be purified; if the current detection value of the condensate on the indoor heat exchanger is greater than or equal to the initial detection value, then the indoor unit does not need to be purified.

[0013] In some embodiments, the control unit determines whether the indoor unit needs purification based on the current fan speed and the current actual airflow of the indoor fan. This includes: determining, according to the correspondence between a set fan speed and a set standard airflow, the set standard airflow corresponding to the set fan speed that is the same as the current fan speed of the indoor fan in the correspondence as the current standard airflow of the indoor fan corresponding to the current fan speed; determining whether the current actual airflow of the indoor fan is less than the current standard airflow of the indoor fan; if the current actual airflow of the indoor fan is less than the current standard airflow of the indoor fan, then determining that the indoor unit needs purification; if the current actual airflow of the indoor fan is greater than or equal to the current standard airflow of the indoor fan, then determining that the indoor unit does not need purification.

[0014] In some embodiments, the capacitance detection unit includes: a capacitance sensor; wherein the capacitance sensor is disposed on the surface of one of two aluminum foils on the fins of the indoor heat exchanger; the value detected by the capacitance detection unit includes: the value detected by the capacitance sensor; the value detected by the capacitance sensor is used to characterize the amount of droplet condensate accumulated on the surface of the aluminum foil by droplet condensation.

[0015] In some embodiments, the number of capacitive sensors is one or more; wherein, the value detected by the capacitance detection unit includes: the average value of all the values ​​detected by the one or more capacitive sensors; when the number of capacitive sensors is two or more, the two or more capacitive sensors are arranged in an array on the indoor heat exchanger.

[0016] In some embodiments, the capacitance detection unit is disposed on the fins at the refrigerant inlet of the indoor heat exchanger; and / or, a heat insulation pad is disposed between the capacitance detection unit and the fins of the indoor heat exchanger.

[0017] In conjunction with the above-described device, the present invention further provides an air conditioner, comprising: the control device for the air conditioner described above.

[0018] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, the device containing the storage medium is controlled to perform the steps of the air conditioner control method described above.

[0019] In conjunction with the above method, the present invention further provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0020] Therefore, the solution of the present invention detects the condensation on the surface of the air conditioner's indoor heat exchanger (such as the formation of droplets of condensation on the evaporator surface) by utilizing changes in the capacitance value of a capacitance detection unit (such as capacitance sensor 3) and changes in the wind speed of the indoor fan. When the condensation on the surface of the air conditioner's indoor heat exchanger necessitates purification of the indoor unit, a preset purification mode is activated to purify the indoor unit in advance. Thus, by detecting the condensation on the surface of the air conditioner's indoor heat exchanger and purifying the indoor unit in advance, the odor generated by the condensation on the air conditioner's indoor heat exchanger is prevented from being blown into the room, thus improving the user experience.

[0021] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0022] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a flowchart illustrating an embodiment of the air conditioner control method of the present invention;

[0024] Figure 2 This is a schematic flowchart of an embodiment of the method of the present invention for determining whether the indoor unit needs to be purified based on the initial and current detection values ​​of the condensate on the indoor heat exchanger;

[0025] Figure 3 This is a flowchart illustrating an embodiment of the method of the present invention for determining whether the indoor unit needs to be purified based on the current actual air volume of the indoor fan;

[0026] Figure 4 This is a schematic diagram of the structure of an embodiment of the air conditioner control device of the present invention;

[0027] Figure 5 This is a schematic diagram of the control logic of an embodiment of the air conditioner odor detection method of the present invention;

[0028] Figure 6 This is a schematic diagram showing the relationship between the capacitive sensor and the droplets of condensate on the evaporator fins. (a) is a schematic diagram showing the capacitive sensor in contact with the droplets of condensate, and (b) is a schematic diagram showing the capacitive sensor not in contact with the droplets of condensate.

[0029] Figure 7 This is a schematic diagram of the array arrangement of capacitive sensors on the evaporator fins.

[0030] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0031] 1-Fin; 2-Droplet condensate; 3-Capacitive sensor; 102-Acquisition unit; 104-Control unit. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0033] Considering that the condensate from the air conditioner's indoor heat exchanger accumulates odors, causing unpleasant smells when blown into the room, thus affecting the user experience, there are two condensation methods for the condensate on the evaporator's aluminum foil surface: film condensation and droplet condensation. Droplet condensation is more likely to accumulate odors than film condensation because the film condensate continuously flows downwards, allowing odors to be easily discharged. In contrast, droplet condensation requires a certain amount of water to accumulate before flowing away under gravity, and this settling process is the odor concentration process. Furthermore, droplet condensation has a larger contact surface area with air than film condensation for the same area, making it more prone to accumulating odors.

[0034] A capacitive sensor is a sensor that detects the position and state of an object by utilizing changes in capacitance. It can be applied to displacement, liquid level, pressure, humidity, and proximity detection. Among them, capacitive water immersion sensors use changes in capacitance to detect the presence of water or changes in water level. When water comes into contact with the sensor's electrodes or proximity electrodes, because the dielectric constant of water is much higher than that of air, the water, as a medium, will change the original capacitance value of the sensor, resulting in an increase in the overall capacitance value.

[0035] The hydrophilic aluminum foil of an air conditioner evaporator may experience a decrease in hydrophilicity due to coating aging, abnormal drying processes during manufacturing, or damage to the coating by acidic substances, resulting in droplet condensation. When droplet condensation occurs, the spacing between the fins of the indoor unit (i.e., the fins of the indoor heat exchanger) is very dense. The excessive contact area creates resistance greater than the weight of the water droplets, causing them to easily adhere to the aluminum foil. In severe cases, this can form water bridges, blocking airflow and the contact area between the air and the fins, thus reducing the air conditioner's cooling and ventilation efficiency. Therefore, the presence of droplet condensation can be determined by monitoring changes in the airflow at the corresponding fan speed.

[0036] The odor detection technology in the relevant solutions mainly relies on indoor volatile organic compounds (VOC) detectors to detect indoor odors or air conditioning odors. The problem with this method is that it can only detect odors when they are generated, and it cannot effectively prevent the generation of odors.

[0037] Therefore, the present invention proposes an air conditioner control method, specifically an air conditioner odor detection method. By detecting the formation of droplet condensation on the evaporator surface, the method provides an early warning of odor generation in the air conditioner. When purification is required, the purification mode is activated to remove odors in advance, preventing the air conditioner from blowing out odors caused by environmental adsorption (i.e., the enrichment of odor substances by condensate), thus improving the user experience.

[0038] According to embodiments of the present invention, an air conditioning control method is provided, such as... Figure 1 The diagram shows a flowchart of an embodiment of the method of the present invention. The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan. A capacitance detection unit is provided on the indoor heat exchanger; the value detected by the capacitance detection unit can characterize the detection value of condensate on the indoor heat exchanger (specifically, the detection value characterizing the amount of condensate accumulated on the indoor heat exchanger). In the solution of the present invention, as... Figure 1 As shown, the air conditioner control method includes steps S110 to S140.

[0039] In step S110, when the air conditioner is powered on, the value detected by the capacitance detection unit is obtained as the initial detection value of the amount of condensate accumulated on the indoor heat exchanger (such as the initial capacitance value C0 of the capacitance sensor 3), and recorded as the initial detection value of condensate on the indoor heat exchanger; when the air conditioner is running after being powered on, the value detected by the capacitance detection unit is obtained as the current detection value of the amount of condensate accumulated on the indoor heat exchanger (such as the capacitance value C continuously detected by the capacitance sensor 3), and recorded as the current detection value of condensate on the indoor heat exchanger; and the current fan speed of the indoor fan is obtained, and the current actual air volume of the indoor fan is obtained.

[0040] In step S120, based on the initial detection value of the condensate on the indoor heat exchanger and the current detection value of the condensate on the indoor heat exchanger, it is determined whether the indoor unit needs to be purified; and / or, based on the current fan speed and the current actual air volume of the indoor fan, it is determined whether the indoor unit needs to be purified.

[0041] In step S130, if it is determined that the indoor unit does not need to be purified, the air conditioner is controlled to continue running, and then returns to the previous state to continue to determine whether the indoor unit needs to be purified based on the initial detection value of the condensate on the indoor heat exchanger and the current detection value of the condensate on the indoor heat exchanger; and / or, to continue to determine whether the indoor unit needs to be purified based on the current fan speed and the current actual air volume of the indoor fan.

[0042] In step S140, if it is determined that the indoor unit needs to be purified, a prompt message indicating that the indoor unit needs to be purified is initiated while the air conditioner continues to operate, and / or the air conditioner is controlled to execute a preset purification mode while the air conditioner continues to operate, in order to reduce the accumulation of condensate on the indoor heat exchanger. Then, after the air conditioner is powered on again, the initial detection value of condensate on the indoor heat exchanger is re-acquired, the current detection value of condensate on the indoor heat exchanger is re-acquired, and the current actual air volume of the indoor fan is re-acquired, so as to: re-determine whether the indoor unit needs to be purified based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger; and / or, re-determine whether the indoor unit needs to be purified based on the current fan speed and the current actual air volume of the indoor fan. For example: If the indoor unit is not equipped with a purification device to execute a preset purification mode, a prompt message indicating that the indoor unit needs purification is issued to remind the user to handle the indoor unit and reduce the accumulation of condensate on the indoor heat exchanger. If the indoor unit is equipped with a purification device to execute a preset purification mode, the air conditioner is controlled to execute the preset purification mode to reduce the accumulation of condensate on the indoor heat exchanger. When a warning is issued or the purification mode is activated, the air conditioner continues to run. The purpose of the purification mode is to purify any odor substances that may accumulate in the droplets of condensate, thereby preventing the air conditioner from blowing out odors. After activating the purification mode once, a re-test is performed after 24 hours; if more than 24 hours have passed, the test will begin the next time the unit is powered on.

[0043] The present invention proposes a detection scheme for air conditioner odors, which can detect and purify odors accumulated in the air conditioner evaporator. Specifically, it provides an early warning of odor generation by detecting the formation of droplet condensation on the evaporator surface, prompting the user or directly activating the purification mode to remove the odor in advance. This prevents the air conditioner from blowing out odors caused by environmental adsorption (i.e., the accumulation of odor substances by condensate), thus improving the user experience.

[0044] In some embodiments, the specific process of determining whether the indoor unit needs to be purified based on the initial detection value of the condensate on the indoor heat exchanger and the current detection value of the condensate on the indoor heat exchanger in step S120 is described in the following exemplary description.

[0045] The following is combined Figure 2 The schematic diagram shows an embodiment of the method of the present invention for determining whether the indoor unit needs to be purified based on the initial and current detection values ​​of the condensate on the indoor heat exchanger. It further illustrates the specific process of determining whether the indoor unit needs to be purified based on the initial and current detection values ​​of the condensate on the indoor heat exchanger in step S120, including steps S210 to S230.

[0046] Step S210: Determine whether the current detection value of the condensate on the indoor heat exchanger is less than the initial detection value of the condensate on the indoor heat exchanger.

[0047] Step S220: If it is determined that the current detection value of the condensate on the indoor heat exchanger is less than the initial detection value of the condensate on the indoor heat exchanger, then it is determined that the indoor unit needs to be purified.

[0048] Step S230: If it is determined that the current detection value of the condensate on the indoor heat exchanger is greater than or equal to the initial detection value of the condensate on the indoor heat exchanger, then it is determined that the indoor unit does not need to be purified.

[0049] Figure 5 This is a schematic diagram of the control logic of one embodiment of the air conditioner odor detection method of the present invention. Figure 5 As shown, the method for detecting odors from air conditioners includes:

[0050] Step 1: The user turns on the air conditioner, and the air conditioner starts running. Then, proceed to steps 2 and 4 respectively.

[0051] Step 2: Capacitive sensor 3 detects the initial capacitance value C0, then proceeds to step 3. The working principle of capacitive sensor 3 is based on changes in capacitance. Water has a much higher dielectric constant than air; therefore, when water enters the sensing area of ​​capacitive sensor 3, it replaces some of the air as the new medium, resulting in an increase in capacitance. The capacitive sensor 3 used in step 2 is as follows... Figure 6 The capacitance value of the capacitance sensor 3 shown will increase after it comes into contact with droplets of condensation. If there is no water on the surface of the fin 1, the capacitance value will be zero. Since the capacitance reading may be affected by dust, water stains, etc. on the surface of the detection surface, the initial capacitance value of the capacitance sensor 3 needs to be re-detected each time the machine is turned on.

[0052] The capacitive sensor 3 used in step 2 can be installed in any gap of the aluminum foil in the evaporator. Therefore, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensor and the droplet condensation. For details, please refer to [reference needed]. Figure 7 The example shown.

[0053] Step 3: Capacitor sensor 3 continuously monitors the capacitance value C and determines whether the real-time capacitance value C of capacitor sensor 3 is less than the initial capacitance value C0. If so, proceed to step 5 to enable the air conditioner to activate the purification mode; otherwise, proceed to step 6 to allow the air conditioner to continue operating. When the capacitance value C of capacitor sensor 3 is less than the initial capacitance value C0, it is due to droplet condensation forming on the aluminum foil surface. This droplet condensation accumulates to a certain extent and then contacts the sensor surface, causing the capacitance value to decrease to near zero. The determination of whether the air conditioner should activate the purification mode is based on the capacitance value to prevent unpleasant odors from emanating from the air conditioner.

[0054] In some implementations, the specific process of determining whether the indoor unit needs to be purified based on the current fan speed and the current actual air volume of the indoor fan in step S120 is described in the following exemplary description.

[0055] The following is combined Figure 3 The diagram illustrates a process of determining whether the indoor unit needs purification based on the current actual airflow of the indoor fan in the method of the present invention. It further explains the specific process of determining whether the indoor unit needs purification based on the current actual airflow of the indoor fan in step S120, including steps S310 to S340.

[0056] Step S310: Based on the correspondence between the set wind speed and the set standard air volume, determine the set standard air volume corresponding to the set wind speed that is the same as the current wind speed of the indoor fan in the correspondence as the current standard air volume of the indoor fan corresponding to the current wind speed of the indoor fan.

[0057] Step S320: Determine whether the current actual air volume of the indoor fan is less than the current standard air volume of the indoor fan.

[0058] Step S330: If it is determined that the current actual air volume of the indoor fan is less than the current standard air volume of the indoor fan, then it is determined that the indoor unit needs to be purified.

[0059] Step S340: If it is determined that the current actual air volume of the indoor fan is greater than or equal to the current standard air volume of the indoor fan, then it is determined that the indoor unit does not need to be purified.

[0060] like Figure 5As shown, the method for detecting odors generated by air conditioners also includes: Step 4, real-time detection of whether the air volume at the corresponding air conditioner setting is greater than the target value: set the minimum wind speed under normal conditions for the air conditioner setting according to different air conditioner settings (see Table 1 for details). If the detected value is less than the target value, proceed to Step 5; otherwise, proceed to Step 6.

[0061] In the solution of this invention, when a certain amount of droplet condensation is generated on the evaporator, there is a certain wind resistance, which reduces the airflow, thereby causing a certain decrease in the airflow at the current fan speed. Table 1 provides an example of the optimal airflow (i.e., the minimum airflow corresponding to different fan speeds) for different air conditioner fan speeds.

[0062] Table 1

[0063] windshield <![CDATA[Standard minimum air output m 3 / h]]> 1 450 2 550 3 650 4 750 …… ……

[0064] This invention proposes a method for detecting and purifying odors accumulated in an air conditioner evaporator. The method controls whether the air conditioner is purifying by detecting the formation of droplets of condensation on the evaporator surface. During air conditioner operation, the capacitance of a capacitance sensor 3 installed on the evaporator and the change in airflow speed at the corresponding fan speed setting are simultaneously monitored. When condensation adheres to the sensor, the capacitance reading increases. When droplets of condensation accumulate to a certain volume, a water bridge is formed due to the pre-set distance between the capacitance sensor 3 and the fins 1. Since the fins are grounded, this causes the capacitance sensor 3 reading to approach zero. However, considering that water droplets may not form at the location corresponding to the capacitance, leading to detection errors, a method is simultaneously implemented to detect droplet condensation based on airflow speed changes. When droplets of condensation 2 accumulate to a certain amount on the fins 1, they affect the actual output airflow speed. By detecting changes in airflow speed, the presence of droplets of condensation on the evaporator is determined, and the air conditioner is instructed to activate the purification mode. This proactive purification process prevents odors from developing and improves the user experience.

[0065] Step 5: The air conditioner can activate the purification mode. This purification mode includes, but is not limited to, ultraviolet light purification, cold plasma purification, and negative ion purification methods to purify the odor substances accumulated in the droplets of condensate on the evaporator surface. Activating the purification mode in advance removes these odor substances, thus preventing the air conditioner from producing unpleasant odors. In this invention, if the air conditioner detects a corresponding reading, it activates the purification mode to purify the odors accumulated inside the unit, preventing the air conditioner from accumulating odors and blowing them into the room, thereby improving the user experience.

[0066] Step 6: The air conditioner continues to run.

[0067] In this invention, the air conditioner's purification function is controlled by detecting the formation of droplets of condensation on the evaporator surface. During operation, a capacitive sensor 3 detects condensation on the evaporator surface to determine if droplets are forming. Simultaneously, the sensor compensates for potential errors by detecting changes in fan speed at the corresponding fan speed setting. This determines whether the air conditioner should activate purification mode to remove any odors that may accumulate inside the indoor unit, preventing the air conditioner from accumulating odors and blowing them into the room. This prevents odor generation and improves the user experience. This solution not only addresses the issue of odors affecting user experience but also solves the problem that odor detection technologies in related solutions cannot prevent odor generation.

[0068] In some embodiments, the capacitance detection unit includes a capacitance sensor 3. The capacitance sensor 3 is disposed on the surface of one of two aluminum foils on the fins 1 of the indoor heat exchanger. The value detected by the capacitance detection unit includes the value detected by the capacitance sensor 3. The value detected by the capacitance sensor 3 is used to characterize the amount of droplet condensate 2 accumulated on the surface of the aluminum foil by droplet condensation.

[0069] Figure 6 This diagram illustrates the relationship between the capacitive sensor 3 and the droplets of condensate on the evaporator fins. (a) shows the situation where the capacitive sensor 3 is in contact with the droplets of condensate, and (b) shows the situation where the capacitive sensor 3 is not in contact with the droplets of condensate. Figure 6 As shown, there is droplet condensate 2 on the fins 1 of the indoor heat exchanger of the air conditioner, which is generated by droplet condensation. A capacitive sensor 3 is installed on the fins 1 of the indoor heat exchanger of the air conditioner.

[0070] Fin 1 consists of two aluminum foils in the evaporator, with a certain gap between them, and the aluminum foils are grounded as a whole; Capacitive sensor 3 is a water immersion sensor, and the capacitance value of the water immersion sensor will change after contact with water. The water immersion sensor has a certain height (i.e., the water immersion sensor has a certain height or thickness along the direction of the two adjacent fins), which makes the distance between the surface of the water immersion sensor and the aluminum foil closer; Droplet condensate 2 is the water droplets of condensate generated on fin 1 by droplet condensation during air conditioning condensation. When the droplet condensate 2 accumulates to a certain extent, it will contact the surface of capacitive sensor 3, causing the capacitance value of capacitive sensor 3 to change. However, since fin 1 is grounded, when capacitive sensor 3 and aluminum foil are connected by the droplet condensate 2, the capacitance value of capacitive sensor 3 will decrease and tend to zero.

[0071] In some embodiments, the number of capacitive sensors 3 is one or more; wherein each of the one or more capacitive sensors 3 is disposed on the surface of one of two aluminum foils on the fins 1 of the indoor heat exchanger. The value detected by the capacitance detection unit includes: the average value detected by all the capacitive sensors 3; when the number of capacitive sensors 3 is two or more, the two or more capacitive sensors 3 are arranged in an array on the same fin 1 or different fins 1 of the indoor heat exchanger.

[0072] Figure 7 This is a schematic diagram showing the array arrangement of capacitive sensor 3 on the evaporator fins. (See diagram below.) Figure 7 As shown, capacitive sensors 3 are arranged at intervals on multiple fins of the heat exchanger in the indoor unit of an air conditioner. For example, on six adjacent fins, capacitive sensors 3 are arranged on the first, third, and fifth fins, with two or more capacitive sensors 3 arranged on each fin, forming an array of capacitive sensors 3. The average value of the readings of the arrayed multiple capacitive sensors 3 can be used as the detection result to improve detection accuracy. In the solution of this invention, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensors and the droplet condensation.

[0073] In some embodiments, the capacitance detection unit is disposed on the fin 1 at the refrigerant inlet of the indoor heat exchanger; and / or, a heat insulation pad is disposed between the capacitance detection unit and the fin 1 of the indoor heat exchanger.

[0074] In the present invention, the capacitive sensor 3 is preferably installed on the aluminum foil surface near the inlet of the evaporator capillary tube. When the air conditioner is running, the refrigerant first flows from the capillary tube into the copper tube of the evaporator. Condensate is generated first at this location, which can accurately detect the condensate at the inlet of the evaporator capillary tube and purify it in advance. There is a heat insulation pad between the capacitive sensor 3 and the aluminum foil surface to prevent condensate from forming on the surface of the capacitive sensor 3. The heat insulation pad can be a heat insulation material such as mineral wool, polyurethane foam, or foamed polyethylene.

[0075] The technical solution of this embodiment detects the condensation on the surface of the air conditioner's indoor heat exchanger (e.g., the evaporator surface condensation forming droplets) by utilizing changes in the capacitance value of a capacitance detection unit (e.g., capacitance sensor 3) and changes in the airflow speed of the indoor fan. When the condensation on the surface of the air conditioner's indoor heat exchanger necessitates purification of the indoor unit, a preset purification mode is activated to purify the indoor unit in advance. Thus, by detecting the condensation on the surface of the air conditioner's indoor heat exchanger and purifying the indoor unit in advance, unpleasant odors caused by the condensation from the air conditioner's indoor heat exchanger are prevented from being blown into the room, improving the user experience.

[0076] According to an embodiment of the present invention, an air conditioner control device corresponding to the air conditioner control method is also provided. See also Figure 4 The diagram shows a structural schematic of an embodiment of the device of the present invention. The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitance detection unit is provided on the indoor heat exchanger; the value detected by the capacitance detection unit can characterize the detection value of condensate on the indoor heat exchanger (specifically, the detection value characterizing the amount of condensate accumulated on the indoor heat exchanger); in the solution of the present invention, as... Figure 4 As shown, the control device of the air conditioner includes: an acquisition unit 102 and a control unit 104.

[0077] The acquisition unit 102 is configured to: acquire the value detected by the capacitance detection unit as the initial detection value of the accumulated condensate on the indoor heat exchanger (e.g., the initial capacitance value C0 of the capacitance sensor 3) when the air conditioner is powered on and turned on, and record it as the initial detection value of the condensate on the indoor heat exchanger; acquire the value detected by the capacitance detection unit as the current detection value of the accumulated condensate on the indoor heat exchanger (e.g., the capacitance value C continuously detected by the capacitance sensor 3) when the air conditioner is running after being turned on, and record it as the current detection value of the condensate on the indoor heat exchanger; and acquire the current fan speed of the indoor fan and the current actual air volume of the indoor fan. The specific functions and processing of this acquisition unit 102 are described in step S110.

[0078] The control unit 104 is configured to determine whether the indoor unit needs purification based on the initial and current detection values ​​of condensate on the indoor heat exchanger; and / or, based on the current fan speed and actual airflow of the indoor fan. The specific functions and processing of this control unit 104 are further described in step S120.

[0079] The control unit 104 is further configured to, if it is determined that purification of the indoor unit is not required, control the air conditioner to continue operating, and then return to determine whether purification of the indoor unit is required based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger; and / or, to determine whether purification of the indoor unit is required based on the current fan speed and the current actual airflow of the indoor fan. The specific functions and processing of this control unit 104 are further described in step S130.

[0080] The control unit 104 is further configured to, if it is determined that the indoor unit needs to be purified, initiate a prompt message indicating that the indoor unit needs to be purified while controlling the air conditioner to continue operating, and / or control the air conditioner to execute a preset purification mode while controlling the air conditioner to continue operating, so as to reduce the accumulation of condensate on the indoor heat exchanger. Then, after the air conditioner is powered on again, it re-acquires the initial detection value of condensate on the indoor heat exchanger, re-acquires the current detection value of condensate on the indoor heat exchanger, and re-acquires the current actual air volume of the indoor fan, so as to: re-determine whether the indoor unit needs to be purified based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger; and / or re-determine whether the indoor unit needs to be purified based on the current fan speed and the current actual air volume of the indoor fan. For example, if the indoor unit is not equipped with a purification device to execute a preset purification mode, a prompt message indicating that the indoor unit needs purification is generated to remind the user to handle the indoor unit and reduce the accumulation of condensate on the indoor heat exchanger. If the indoor unit is equipped with a purification device to execute a preset purification mode, the air conditioner is controlled to execute the preset purification mode to reduce the accumulation of condensate on the indoor heat exchanger. The specific functions and processing of this control unit 104 are further described in step S140.

[0081] The present invention proposes a detection scheme for air conditioner odors, which can detect and purify odors accumulated in the air conditioner evaporator. Specifically, it provides an early warning of odor generation by detecting the formation of droplet condensation on the evaporator surface, prompting the user or directly activating the purification mode to remove the odor in advance. This prevents the air conditioner from blowing out odors caused by environmental adsorption (i.e., the accumulation of odor substances by condensate), thus improving the user experience.

[0082] In some embodiments, the control unit 104 determines whether the indoor unit needs to be purified based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger, including:

[0083] The control unit 104 is further configured to determine whether the current detected value of the condensate on the indoor heat exchanger is less than the initial detected value of the condensate on the indoor heat exchanger. The specific functions and processing of the control unit 104 are further described in step S210.

[0084] The control unit 104 is further configured to determine that the indoor unit needs to be purified if the current detected value of the condensate on the indoor heat exchanger is less than the initial detected value. The specific functions and processing of this control unit 104 are further described in step S220.

[0085] The control unit 104 is further configured to determine that purification of the indoor unit is not required if the current detected value of the condensate on the indoor heat exchanger is greater than or equal to the initial detected value of the condensate on the indoor heat exchanger. The specific functions and processing of this control unit 104 are further described in step S230.

[0086] Figure 5 This is a schematic diagram of the control logic of one embodiment of the air conditioner odor detection method of the present invention. Figure 5 As shown, the method for detecting odors from air conditioners includes:

[0087] Step 1: The user turns on the air conditioner, and the air conditioner starts running. Then, proceed to steps 2 and 4 respectively.

[0088] Step 2: Capacitive sensor 3 detects the initial capacitance value C0, then proceeds to step 3. The working principle of capacitive sensor 3 is based on changes in capacitance. Water has a much higher dielectric constant than air; therefore, when water enters the sensing area of ​​capacitive sensor 3, it replaces some of the air as the new medium, resulting in an increase in capacitance. The capacitive sensor 3 used in step 2 is as follows... Figure 6 The capacitance value of the capacitance sensor 3 shown will increase after it comes into contact with droplets of condensation. If there is no water on the surface of the fin 1, the capacitance value will be zero. Since the capacitance reading may be affected by dust, water stains, etc. on the surface of the detection surface, the initial capacitance value of the capacitance sensor 3 needs to be re-detected each time the machine is turned on.

[0089] The capacitive sensor 3 used in step 2 can be installed in any gap of the aluminum foil in the evaporator. Therefore, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensor and the droplet condensation. For details, please refer to [reference needed]. Figure 7 The example shown.

[0090] Step 3: Capacitor sensor 3 continuously monitors the capacitance value C and determines whether the real-time capacitance value C of capacitor sensor 3 is less than the initial capacitance value C0. If so, proceed to step 5 to enable the air conditioner to activate the purification mode; otherwise, proceed to step 6 to allow the air conditioner to continue operating. When the capacitance value C of capacitor sensor 3 is less than the initial capacitance value C0, it is due to droplet condensation forming on the aluminum foil surface. This droplet condensation accumulates to a certain extent and then contacts the sensor surface, causing the capacitance value to decrease to near zero. The determination of whether the air conditioner should activate the purification mode is based on the capacitance value to prevent unpleasant odors from emanating from the air conditioner.

[0091] In some embodiments, the control unit 104 determines whether the indoor unit needs to be purified based on the current fan speed and the current actual airflow of the indoor fan, including:

[0092] The control unit 104 is further configured to, based on the correspondence between a set wind speed and a set standard airflow, determine the set standard airflow corresponding to the set wind speed that is the same as the current wind speed of the indoor fan in the correspondence as the current standard airflow of the indoor fan corresponding to the current wind speed of the indoor fan. The specific functions and processing of this control unit 104 are further described in step S310.

[0093] The control unit 104 is further configured to determine whether the current actual airflow of the indoor fan is less than the current standard airflow of the indoor fan. The specific functions and processing of the control unit 104 are further described in step S320.

[0094] The control unit 104 is further configured to determine that the indoor unit needs to be purified if it is determined that the current actual air volume of the indoor fan is less than the current standard air volume of the indoor fan. The specific functions and processing of this control unit 104 are further described in step S330.

[0095] The control unit 104 is further configured to determine that purification of the indoor unit is not required if it is determined that the current actual airflow of the indoor fan is greater than or equal to the current standard airflow of the indoor fan. The specific functions and processing of this control unit 104 are further described in step S340.

[0096] like Figure 5 As shown, the method for detecting odors generated by air conditioners also includes: Step 4, real-time detection of whether the air volume at the corresponding air conditioner setting is greater than the target value: set the minimum wind speed under normal conditions for the air conditioner setting according to different air conditioner settings (see Table 1 for details). If the detected value is less than the target value, proceed to Step 5; otherwise, proceed to Step 6.

[0097] In the solution of this invention, when a certain amount of droplet condensation is generated on the evaporator, there is a certain wind resistance, which reduces the airflow, thereby causing a certain decrease in the airflow at the current fan speed. Table 1 provides an example of the optimal airflow (i.e., the minimum airflow corresponding to different fan speeds) for different air conditioner fan speeds.

[0098] Table 1

[0099] windshield <![CDATA[Standard minimum air output m 3 / h]]> 1 450 2 550 3 650 4 750 …… ……

[0100] This invention proposes a method for detecting and purifying odors accumulated in an air conditioner evaporator. The method controls whether the air conditioner is purifying by detecting the formation of droplets of condensation on the evaporator surface. During air conditioner operation, the capacitance of a capacitance sensor 3 installed on the evaporator and the change in airflow speed at the corresponding fan speed setting are simultaneously monitored. When condensation adheres to the sensor, the capacitance reading increases. When droplets of condensation accumulate to a certain volume, a water bridge is formed due to the pre-set distance between the capacitance sensor 3 and the fins 1. Since the fins are grounded, this causes the capacitance sensor 3 reading to approach zero. However, considering that water droplets may not form at the location corresponding to the capacitance, leading to detection errors, a method is simultaneously implemented to detect droplet condensation based on airflow speed changes. When droplets of condensation 2 accumulate to a certain amount on the fins 1, they affect the actual output airflow speed. By detecting changes in airflow speed, the presence of droplets of condensation on the evaporator is determined, and the air conditioner is instructed to activate the purification mode. This proactive purification process prevents odors from developing and improves the user experience.

[0101] Step 5: The air conditioner can activate the purification mode. This purification mode includes, but is not limited to, ultraviolet light purification, cold plasma purification, and negative ion purification methods to purify the odor substances accumulated in the droplets of condensate on the evaporator surface. Activating the purification mode in advance removes these odor substances, thus preventing the air conditioner from producing unpleasant odors. In this invention, if the air conditioner detects a corresponding reading, it activates the purification mode to purify the odors accumulated inside the unit, preventing the air conditioner from accumulating odors and blowing them into the room, thereby improving the user experience.

[0102] Step 6: The air conditioner continues to run.

[0103] In this invention, the air conditioner's purification function is controlled by detecting the formation of droplets of condensation on the evaporator surface. During operation, a capacitive sensor 3 detects condensation on the evaporator surface to determine if droplets are forming. Simultaneously, the sensor compensates for potential errors by detecting changes in fan speed at the corresponding fan speed setting. This determines whether the air conditioner should activate purification mode to remove any odors that may accumulate inside the indoor unit, preventing the air conditioner from accumulating odors and blowing them into the room. This prevents odor generation and improves the user experience. This solution not only addresses the issue of odors affecting user experience but also solves the problem that odor detection technologies in related solutions cannot prevent odor generation.

[0104] In some embodiments, the capacitance detection unit includes a capacitance sensor 3. The capacitance sensor 3 is disposed on the surface of one of two aluminum foils on the fins 1 of the indoor heat exchanger. The value detected by the capacitance detection unit includes the value detected by the capacitance sensor 3. The value detected by the capacitance sensor 3 is used to characterize the amount of droplet condensate 2 accumulated on the surface of the aluminum foil by droplet condensation.

[0105] Figure 6 This diagram illustrates the relationship between the capacitive sensor 3 and the droplets of condensate on the evaporator fins. (a) shows the situation where the capacitive sensor 3 is in contact with the droplets of condensate, and (b) shows the situation where the capacitive sensor 3 is not in contact with the droplets of condensate. Figure 6 As shown, there is droplet condensate 2 on the fins 1 of the indoor heat exchanger of the air conditioner, which is generated by droplet condensation. A capacitive sensor 3 is installed on the fins 1 of the indoor heat exchanger of the air conditioner.

[0106] Fin 1 consists of two aluminum foils in the evaporator, with a certain gap between them, and the aluminum foils are grounded as a whole; Capacitive sensor 3 is a water immersion sensor, and the capacitance value of the water immersion sensor will change after contact with water. The water immersion sensor has a certain height (i.e., the water immersion sensor has a certain height or thickness along the direction of the two adjacent fins), which makes the distance between the surface of the water immersion sensor and the aluminum foil closer; Droplet condensate 2 is the water droplets of condensate generated on fin 1 by droplet condensation during air conditioning condensation. When the droplet condensate 2 accumulates to a certain extent, it will contact the surface of capacitive sensor 3, causing the capacitance value of capacitive sensor 3 to change. However, since fin 1 is grounded, when capacitive sensor 3 and aluminum foil are connected by the droplet condensate 2, the capacitance value of capacitive sensor 3 will decrease and tend to zero.

[0107] In some embodiments, the number of capacitive sensors 3 is one or more. Each of the one or more capacitive sensors 3 is disposed on the surface of one of two aluminum foils on the fins 1 of the indoor heat exchanger. The value detected by the capacitance detection unit includes: the average value detected by all the capacitive sensors 3; when the number of capacitive sensors 3 is two or more, the two or more capacitive sensors 3 are arranged in an array on the indoor heat exchanger.

[0108] Figure 7 This is a schematic diagram showing the array arrangement of capacitive sensor 3 on the evaporator fins. (See diagram below.) Figure 7 As shown, capacitive sensors 3 are arranged at intervals on multiple fins of the heat exchanger in the indoor unit of an air conditioner. For example, on six adjacent fins, capacitive sensors 3 are arranged on the first, third, and fifth fins, with two or more capacitive sensors 3 arranged on each fin, forming an array of capacitive sensors 3. The average value of the readings of the arrayed multiple capacitive sensors 3 can be used as the detection result to improve detection accuracy. In the solution of this invention, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensors and the droplet condensation.

[0109] In some embodiments, the capacitance detection unit is disposed on the fin 1 at the refrigerant inlet of the indoor heat exchanger; and / or, a heat insulation pad is disposed between the capacitance detection unit and the fin 1 of the indoor heat exchanger.

[0110] In the present invention, the capacitive sensor 3 is preferably installed on the aluminum foil surface near the inlet of the evaporator capillary tube. When the air conditioner is running, the refrigerant first flows from the capillary tube into the copper tube of the evaporator. Condensate is generated first at this location, which can accurately detect the condensate at the inlet of the evaporator capillary tube and purify it in advance. There is a heat insulation pad between the capacitive sensor 3 and the aluminum foil surface to prevent condensate from forming on the surface of the capacitive sensor 3. The heat insulation pad can be a heat insulation material such as mineral wool, polyurethane foam, or foamed polyethylene.

[0111] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0112] According to an embodiment of the present invention, an air conditioner corresponding to an air conditioner control device is also provided. This air conditioner may include the air conditioner control device described above.

[0113] Since the processing and functions implemented by the air conditioner in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned device, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0114] According to an embodiment of the present invention, a computer program product corresponding to an air conditioner is also provided, comprising a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0115] Since the processing and functions implemented by the product in this embodiment are basically the same as those of the aforementioned air conditioner embodiments, principles and examples, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0116] According to an embodiment of the present invention, a storage medium corresponding to an air conditioner control method is also provided, the storage medium including a stored program, wherein, when the program is executed, the device where the storage medium is located controls the execution of the steps of the air conditioner control method described above.

[0117] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0118] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0119] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that, The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitance detection unit is provided on the indoor heat exchanger; the value detected by the capacitance detection unit is a detection value that can characterize the amount of condensate accumulated on the indoor heat exchanger; the condensate on the indoor heat exchanger is droplet condensate (2) generated by droplet condensation on the fins (1) of the indoor heat exchanger; the control method of the air conditioner includes: When the air conditioner is powered on, the value detected by the capacitor detection unit is obtained and recorded as the initial detection value of condensate on the indoor heat exchanger; when the air conditioner is running after being powered on, the value detected by the capacitor detection unit is obtained and recorded as the current detection value of condensate on the indoor heat exchanger; and the current fan speed of the indoor fan and the current actual air volume of the indoor fan are obtained. Based on the initial and current condensate levels on the indoor heat exchanger, determine whether the indoor unit needs purification; and based on the current fan speed and actual airflow of the indoor fan, determine whether the indoor unit needs purification. If it is determined that purification of the indoor unit is not required, the air conditioner is controlled to continue operating; If it is determined that the indoor unit needs to be purified, a prompt message indicating that the indoor unit needs to be purified is initiated, and / or the air conditioner is controlled to execute a preset purification mode to reduce the amount of condensate accumulation on the indoor heat exchanger.

2. The air conditioning control method according to claim 1, characterized in that, Based on the initial and current condensate levels on the indoor heat exchanger, determine whether the indoor unit needs purification, including: Determine whether the current detected value of the condensate on the indoor heat exchanger is less than the initial detected value of the condensate on the indoor heat exchanger; If the current detected value of the condensate on the indoor heat exchanger is determined to be less than the initial detected value of the condensate on the indoor heat exchanger, then it is determined that the indoor unit needs to be purified. If the current detected value of the condensate on the indoor heat exchanger is greater than or equal to the initial detected value of the condensate on the indoor heat exchanger, then it is determined that the indoor unit does not need to be purified.

3. The air conditioning control method according to claim 1, characterized in that, Based on the current fan speed and the actual airflow of the indoor fan, determine whether the indoor unit needs purification, including: Based on the correspondence between the set wind speed and the set standard air volume, the set standard air volume corresponding to the set wind speed that is the same as the current wind speed of the indoor fan in the correspondence is determined as the current standard air volume of the indoor fan corresponding to the current wind speed of the indoor fan. Determine whether the current actual air output of the indoor fan is less than the current standard air output of the indoor fan; If it is determined that the current actual air volume of the indoor fan is less than the current standard air volume of the indoor fan, then it is determined that the indoor unit needs to be purified. If it is determined that the current actual air volume of the indoor fan is greater than or equal to the current standard air volume of the indoor fan, then it is determined that the indoor unit does not need to be purified.

4. The air conditioning control method according to any one of claims 1 to 3, characterized in that, The capacitance detection unit includes: a capacitance sensor (3); wherein, The capacitive sensor (3) is disposed on the surface of one of the two aluminum foils on the fins (1) of the indoor heat exchanger; The values ​​detected by the capacitance detection unit include: the values ​​detected by the capacitance sensor (3); the values ​​detected by the capacitance sensor (3) are used to characterize the amount of droplet condensate (2) generated by droplet condensation on the surface of the aluminum foil.

5. The air conditioning control method according to claim 4, characterized in that, The number of the capacitive sensors (3) is one or more; among them, The value detected by the capacitance detection unit includes: the average value of the values ​​detected by all the capacitance sensors (3) in one or more of the capacitance sensors (3); When there are two or more capacitive sensors (3), the two or more capacitive sensors (3) are arranged in an array on the indoor heat exchanger.

6. The air conditioning control method according to any one of claims 1 to 3 and 5, characterized in that, in, The capacitance detection unit is installed on the fins (1) at the refrigerant inlet of the indoor heat exchanger; And / or, A heat insulation pad is provided between the capacitance detection unit and the fins (1) of the indoor heat exchanger.

7. The air conditioning control method according to claim 4, characterized in that, in, The capacitance detection unit is installed on the fins (1) at the refrigerant inlet of the indoor heat exchanger; And / or, A heat insulation pad is provided between the capacitance detection unit and the fins (1) of the indoor heat exchanger.

8. A control device for an air conditioner that uses the air conditioner control method as described in claim 1 to achieve air conditioner control, characterized in that, The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitance detection unit is provided on the indoor heat exchanger; the value detected by the capacitance detection unit can characterize the detection value of condensate on the indoor heat exchanger. The control device for the air conditioner includes: The acquisition unit is configured to, when the air conditioner is powered on and turned on, acquire the value detected by the capacitor detection unit and record it as the initial detection value of condensate on the indoor heat exchanger; when the air conditioner is running after being turned on, acquire the value detected by the capacitor detection unit and record it as the current detection value of condensate on the indoor heat exchanger; and acquire the current fan speed of the indoor fan and the current actual air volume of the indoor fan. The control unit is configured to determine whether the indoor unit needs to be purified based on the initial detection value of condensate on the indoor heat exchanger and the current detection value of condensate on the indoor heat exchanger; and / or, to determine whether the indoor unit needs to be purified based on the current fan speed and the current actual air volume of the indoor fan. The control unit is also configured to control the air conditioner to continue operating if it is determined that purification of the indoor unit is not required. The control unit is also configured to, if it is determined that the indoor unit needs to be purified, initiate a prompt message indicating that the indoor unit needs to be purified, and / or control the air conditioner to execute a preset purification mode to reduce the amount of condensate accumulation on the indoor heat exchanger.

9. An air conditioner, characterized in that, include: The air conditioning control device as described in claim 8.

10. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, the device containing the storage medium is controlled to perform the air conditioning control method according to any one of claims 1 to 7.

11. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the air conditioning control method according to any one of claims 1 to 7.

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