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

Abstract

The invention discloses an air conditioner and a control method and device thereof, a storage medium and a computer program product, and the method comprises the steps that after the air conditioner is powered on and started, the initial detection value of condensate water on an indoor heat exchanger, the current detection value of the condensate water on the indoor heat exchanger, the current air gear of an indoor fan and the current actual air outlet amount are obtained; according to the initial detection value and the current detection value of the condensate water on the indoor heat exchanger, whether the indoor unit needs to be purified or not is determined; and / or, whether the indoor unit needs to be purified or not is determined according to the current air gear and the current actual air outlet amount of the indoor fan; and if it is determined that the indoor unit needs to be purified, a prompt message that the indoor unit needs to be purified is initiated, and / or the air conditioner is controlled to execute a preset purification mode, so that the accumulation amount of condensate water on the indoor heat exchanger is reduced. According to the scheme, the accumulation condition 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] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method, device, air conditioner, storage medium and computer program product of an air conditioner, and in particular to a detection method, device, air conditioner, storage medium and computer program product of odor generated by an air conditioner. Background Art

[0002] Odor has always been a problem that users pay attention to when using air conditioners. The source of the odor blown out by the air conditioner mainly comes from the evaporator (i.e., the indoor heat exchanger) adsorbing indoor environmental odor or the microorganisms that grow in the air conditioner. Among them, the adsorption of environmental odor is mainly the condensed water of the air conditioner evaporator enriching the odorous substances decomposed by indoor air and microorganisms. After the condensed water evaporates, the odorous substances are blown into the room along with the water vapor, producing odor and affecting the user experience.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The object of the present invention is to provide an air conditioner control method, device, air conditioner, storage medium and computer program product to solve the problem that condensed water in an indoor heat exchanger of the air conditioner accumulates odorous substances, which causes indoor odor when blown into the room, affecting user experience. The purpose of the present invention is to detect the condition of condensed water on the surface of the indoor heat exchanger of the air conditioner and purify the indoor unit in advance to avoid the odor concentrated in the condensed water in the indoor heat exchanger of the air conditioner from being blown into the room, thereby improving the user experience.

[0005] The present invention provides a control method for an air conditioner, wherein an indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitor detection unit is arranged on the indoor heat exchanger; the value detected by the capacitor detection unit can represent the detection value of condensed water on the indoor heat exchanger; the control method for the air conditioner comprises: when the air conditioner is powered on and turned on, obtaining the value detected by the capacitor detection unit and recording it as the initial detection value of condensed water on the indoor heat exchanger; when the air conditioner is running after being turned on, obtaining the value detected by the capacitor detection unit and recording it as the current detection value of condensed water on the indoor heat exchanger; and obtaining the current wind speed of the indoor fan and obtaining the The present actual air volume of the indoor fan; according to the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger, determining whether the indoor unit needs to be purified; and / or, according to the current wind speed of the indoor fan and the current actual air volume of the indoor fan, determining whether the indoor unit needs to be purified; if it is determined that the indoor unit does not need to be purified, controlling the air conditioner to continue to run; 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 of condensed water on the indoor heat exchanger.

[0006] In some embodiments, whether the indoor unit needs to be purified is determined based on an initial detection value of the condensed water on the indoor heat exchanger and a current detection value of the condensed water on the indoor heat exchanger, including: determining whether the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger; if it is determined that the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger, determining that the indoor unit needs to be purified; if it is determined that the current detection value of the condensed water on the indoor heat exchanger is greater than or equal to the initial detection value of the condensed water on the indoor heat exchanger, determining that the indoor unit does not need to be purified.

[0007] In some embodiments, whether the indoor unit needs to be purified is determined based on the current wind speed of the indoor fan and the current actual air volume of the indoor fan, 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; determining whether the current actual air volume of the indoor fan is less than the current standard air volume 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, determining 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, determining that the indoor unit does not need to be purified.

[0008] In some embodiments, the capacitance detection unit includes: a capacitance sensor; wherein the capacitance sensor is arranged on the surface of one of the two aluminum foils on the fin 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 accumulation amount of droplet condensation water generated by droplet condensation on the surface of the aluminum foil.

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

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

[0011] Matching the above method, the present invention provides a control device for an air conditioner on the other hand, wherein the indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitor detection unit is arranged on the indoor heat exchanger; the value detected by the capacitor detection unit can represent the detection value of condensed water on the indoor heat exchanger; the control device of the air conditioner comprises: an acquisition unit, which is configured to acquire the value detected by the capacitor detection unit when the air conditioner is powered on and turned on, and record it as the initial detection value of the condensed water 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 the condensed water on the indoor heat exchanger; and acquire the current wind speed of the indoor fan, and acquire the current wind speed of the indoor fan. the current actual air volume; a control unit configured to determine whether the indoor unit needs to be purified according to an initial detection value of condensed water on the indoor heat exchanger and a current detection value of condensed water on the indoor heat exchanger; and / or, based on a current wind speed of the indoor fan and a current actual air volume of the indoor fan, determine whether the indoor unit needs to be purified; the control unit is further configured to control the air conditioner to continue running if it is determined that the indoor unit does not need to be purified; the control unit is further configured to initiate a prompt message that the indoor unit needs to be purified if it is determined that the indoor unit needs to be purified, and / or control the air conditioner to execute a preset purification mode to reduce the accumulation of condensed water 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 condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger, including: determining whether the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger; if it is determined that the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger, determining that the indoor unit needs to be purified; if it is determined that the current detection value of the condensed water on the indoor heat exchanger is greater than or equal to the initial detection value of the condensed water on the indoor heat exchanger, determining that the indoor unit does not need to be purified.

[0013] In some embodiments, the control unit determines whether the indoor unit needs to be purified based on the current wind speed of the indoor fan and the current actual air volume of the indoor fan, including: based on the correspondence between the set wind speed and the set standard air volume, determining 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; determining whether the current actual air volume of the indoor fan is less than the current standard air volume 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, determining 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, determining that the indoor unit does not need to be purified.

[0014] In some embodiments, the capacitance detection unit includes: a capacitance sensor; wherein the capacitance sensor is arranged on the surface of one of the two aluminum foils on the fin 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 accumulation amount of droplet condensation water generated by droplet condensation on the surface of the aluminum foil.

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

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

[0017] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner mentioned above.

[0018] In accordance with the above method, the present invention provides a storage medium on the other hand, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the air conditioning control method described above.

[0019] In accordance with the above method, the present invention provides a computer program product on another aspect, including a computer program, which implements the steps of the above air conditioning control method when executed by a processor.

[0020] Therefore, the scheme of the present invention detects the situation of condensed water on the surface of the indoor heat exchanger of the air conditioner (such as the situation where condensed water on the surface of the evaporator produces droplet-shaped condensation) by utilizing the change of the capacitance value of the capacitance detection unit (such as the capacitance sensor 3) and the change of the wind speed of the indoor fan; when the situation of condensed water on the surface of the indoor heat exchanger of the air conditioner requires purification of the indoor unit, the preset purification mode is turned on to purify the indoor unit to purify the indoor unit in advance; thus, by detecting the situation of condensed water on the surface of the indoor heat exchanger of the air conditioner, the indoor unit is purified in advance, thereby avoiding the generation of odor in the room when the odor enriched by the condensed water on the indoor heat exchanger of the air conditioner is blown into the room, thereby improving the user experience.

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

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0024] Figure 2 A flow chart of an embodiment of the method of the present invention for determining whether the indoor unit needs to be purified based on the initial detection value and the current detection value of the condensed water on the indoor heat exchanger;

[0025] Figure 3 It is a flow chart of an embodiment of determining whether the indoor unit needs to be purified based on the current actual air output of the indoor fan in the method of the present invention;

[0026] Figure 4 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0027] Figure 5 A control logic diagram of an embodiment of a method for detecting odor generated by an air conditioner of the present invention;

[0028] Figure 6 Schematic diagram of the relationship between the capacitive sensor and the droplet of condensed water on the evaporator fin, wherein (a) is a schematic diagram of the capacitive sensor in contact with the droplet of condensed water, and (b) is a schematic diagram of the capacitive sensor in not contact with the droplet of condensed water;

[0029] Figure 7 Schematic diagram of the array arrangement of capacitive sensors on the evaporator fins.

[0030] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0031] 1- fin; 2- droplet-shaped condensed water; 3- capacitive sensor; 102- acquisition unit; 104- control unit. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Considering that the condensed water in the indoor heat exchanger of the air conditioner enriches odor substances, it will produce odor indoors when blown into the room, affecting the user experience. There are two condensation modes of condensed water on the surface of the aluminum foil of the evaporator, one is film condensation and the other is droplet condensation. Droplet condensation is more likely to enrich odor substances than film condensation, because the film condensed water produced by film condensation is always flowing downward, and odor substances are easily discharged with the flow of condensed water; while the droplet condensed water produced by droplet condensation needs to accumulate to a certain amount before it can flow away under the action of gravity, and this static process is the process of odor concentration, and the contact surface area between droplet condensation and air is larger than that of film condensation under the same area, so droplet condensation is more likely to enrich odor substances.

[0034] Capacitive sensors are sensors that use changes in capacitance to detect the position and state of an object. They can be used for displacement, liquid level, pressure, humidity, and proximity detection. Capacitive water sensors use changes in capacitance to detect the presence of water or changes in water levels. When water contacts the sensor's electrodes or approaches them, the dielectric constant of water is much higher than that of air. Water as a medium will change the original capacitance value of the sensor, causing the overall capacitance value to increase.

[0035] The hydrophilic aluminum foil of the air conditioner evaporator may have a reduced hydrophilicity due to coating aging, abnormal drying process of the coating at the factory, or damage of the coating by acidic substances, resulting in droplet condensation. When the air conditioner produces droplet condensation, the spacing between the fins of the air conditioner (i.e., the fins of the indoor heat exchanger) is very dense, and the water droplets will form a situation where the resistance is greater than the weight due to the large contact area. The water droplets are easy to hang between the aluminum foils, and in severe cases, water bridges will form, blocking the air flow space and the contact area between the air and the fins, reducing the cooling and air supply effects of the air conditioner. Therefore, it is possible to determine whether droplet condensation has occurred by detecting the change in the air volume under the corresponding windshield of the air conditioner.

[0036] The odor detection technology in the related 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 the odor can only be detected when it is generated, and the generation of the odor cannot be effectively prevented.

[0037] Therefore, the scheme of the present invention proposes a control method for an air conditioner, specifically a detection method for an air conditioner generating odor, which warns of the air conditioner generating odor by detecting the generation of droplet condensation on the surface of the evaporator, and turns on the purification mode when purification is needed to remove the odor in advance, so that the air conditioner will not blow out odor caused by environmental adsorption (i.e., enrichment of odorous substances by condensed water), thereby improving the user experience.

[0038] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1 The flowchart of an embodiment of the method of the present invention is shown in FIG. 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 represent the detection value of condensed water on the indoor heat exchanger (specifically, the detection value representing the accumulation amount of condensed water on the indoor heat exchanger). In the scheme of the present invention, if Figure 1 As shown, the air conditioner control method includes: steps S110 to S140.

[0039] At step S110, when the air conditioner is powered on and turned on, the value detected by the capacitance detection unit is obtained as the initial detection value of the accumulation amount of condensed water on the indoor heat exchanger (such as the initial capacitance value C0 of the capacitance sensor 3), which is recorded as the initial detection value of the condensed water on the indoor heat exchanger; when the air conditioner is running after being turned on, the value detected by the capacitance detection unit is obtained as the current detection value of the accumulation amount of condensed water on the indoor heat exchanger (such as the capacitance value C continuously detected by the capacitance sensor 3), which is recorded as the current detection value of the condensed water on the indoor heat exchanger; and, the current wind speed of the indoor fan is obtained, and the current actual air output of the indoor fan is obtained.

[0040] At step S120, whether the indoor unit needs to be purified is determined based on the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or whether the indoor unit needs to be purified is determined based on the current wind speed of the indoor fan and the current actual air output of the indoor fan.

[0041] At 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 continue to determine whether the indoor unit needs to be purified based on the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or continue to determine whether the indoor unit needs to be purified based on the current wind speed of the indoor fan and the current actual air output of the indoor fan.

[0042] At step S140, if it is determined that the indoor unit needs to be purified, a prompt message indicating the need to purify the indoor unit is initiated while the air conditioner is controlled to continue running, and / or the air conditioner is controlled to execute a preset purification mode while the air conditioner is controlled to continue running, so as to reduce the accumulation of condensed water on the indoor heat exchanger. Thereafter, after the air conditioner is powered on next time, the initial detection value of the condensed water on the indoor heat exchanger is re-obtained, the current detection value of the condensed water on the indoor heat exchanger is re-obtained, and the current actual air volume of the indoor fan is re-obtained, so as to: re-determine whether the indoor unit needs to be purified based on the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or re-determine whether the indoor unit needs to be purified based on the current wind speed of the indoor fan and the current actual air volume of the indoor fan. For example: when the indoor unit is not provided with a purification device for executing a preset purification mode, a prompt message is initiated that the indoor unit needs to be purified to prompt the user to process the indoor unit to reduce the amount of condensed water accumulated on the indoor heat exchanger. When the indoor unit is provided with a purification device for executing a preset purification mode, the air conditioner is controlled to execute the preset purification mode to reduce the amount of condensed water accumulated on the indoor heat exchanger. Among them, when the warning is issued or the purification mode is turned on, the air conditioner is still running. The function of the purification mode is to purify the odorous substances that may be enriched in the droplet condensation to prevent the air conditioner from blowing out odors. After turning on the purification mode once, re-detection will be carried out after 24 hours. If it exceeds 24 hours, detection will start at the next power-on.

[0043] The scheme of the present invention proposes a detection scheme for odor generated by air conditioners, which can detect and purify the odor enriched in the air conditioner evaporator. Specifically, by detecting the droplet condensation generated on the surface of the evaporator, an early warning is issued for the air conditioner to generate odor, prompting the user or directly turning on the purification mode to remove the odor in advance, so that the air conditioner will not blow out the odor caused by environmental adsorption (i.e., the enrichment of odorous substances by condensed water), thereby 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 condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger in step S120 is described in the following exemplary description.

[0045] Combine the following Figure 2 The method of the present invention is shown as a flow chart of an embodiment of determining whether the indoor unit needs to be purified based on the initial detection value and the current detection value of the condensed water on the indoor heat exchanger, further illustrating the specific process of determining whether the indoor unit needs to be purified based on the initial detection value and the current detection value of the condensed water on the indoor heat exchanger in step S120, including: steps S210 to S230.

[0046] Step S210, determining whether the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger.

[0047] Step S220: If it is determined that the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger, 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 condensed water on the indoor heat exchanger is greater than or equal to the initial detection value of the condensed water on the indoor heat exchanger, it is determined that the indoor unit does not need to be purified.

[0049] Figure 5 FIG. 1 is a control logic diagram of an embodiment of a method for detecting odor generated by an air conditioner according to the present invention. Figure 5 As shown, the method for detecting odor generated by the air conditioner includes:

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

[0051] Step 2: Capacitance sensor 3 detects the initial capacitance value C0, and then executes step 3. The working principle of capacitance sensor 3 detection is based on the change of capacitance. The dielectric constant of water is much higher than that of air. Therefore, when water enters the sensing area of ​​capacitance sensor 3, it will replace part of the air and become a new medium, resulting in an increase in capacitance. The capacitance sensor 3 used in step 2 is as follows: Figure 6 The capacitance value of the capacitance sensor 3 shown in the figure will increase after the capacitance sensor 3 contacts the droplet condensation. If there is no water on the surface of the fin 1, the capacitance value is 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 device is turned on.

[0052] The installation position of the capacitive sensor 3 used in step 2 can be in any aluminum foil gap of the evaporator, so 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 Figure 7 Example shown.

[0053] Step 3, the capacitance sensor 3 continuously detects the capacitance value C, and determines whether the capacitance value C of the real-time capacitance sensor 3 is less than the initial capacitance value C0: if so, execute step 5 to enable the air conditioner to start the purification mode, otherwise execute step 6 to allow the air conditioner to continue to run. When the capacitance value C of the capacitance sensor 3 is less than the initial capacitance value C0, it is the droplet condensation generated on the surface of the aluminum foil. When the droplet condensation accumulates to a certain extent, it will contact the sensor surface and the capacitance value will decrease to zero; by judging the capacitance value, it is determined whether the air conditioner is turned on the purification mode to prevent the air conditioner from having odor.

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

[0055] Combine the following Figure 3 The method of the present invention is shown as a flow chart of an embodiment of determining whether the indoor unit needs to be purified based on the current actual air volume of the indoor fan, further illustrating the specific process of determining whether the indoor unit needs to be purified based on the current actual air volume 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, 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.

[0057] Step S320, determining 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, 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, it is determined that the indoor unit does not need to be purified.

[0060] like Figure 5As shown, the method for detecting odor generated by the air conditioner also includes: step 4, real-time detection of whether the air volume under the corresponding wind gear of the air conditioner is greater than the target value: according to different wind gears of the air conditioner, the minimum wind speed of the wind gear under normal conditions is set (see Table 1 for details), if the detected value is less than the target value, go to step 5, otherwise go to step 6.

[0061] In the solution of the present invention, when a certain amount of droplet condensation is generated on the evaporator, there is a certain wind resistance, which will reduce the air output, thereby causing a certain decrease in the air output of the current wind speed. Table 1 exemplarily lists the optimal air output corresponding to different wind speeds of the air conditioner (i.e., the minimum air output corresponding to different wind speeds of the air conditioner).

[0062] Table 1

[0063] Windshield <![CDATA[Minimum standard air output m 3 / h]]> 1 450 2 550 3 650 4 750 …… ……

[0064] In the scheme of the present invention, a scheme for detecting and purifying the odor enriched in the air conditioner evaporator is proposed, and the air conditioner is controlled to purify the air conditioner by detecting the droplet condensation of the condensed water on the surface of the evaporator. When the air conditioner is running, the capacitance of the capacitive sensor 3 set on the evaporator and the change of the wind speed under the corresponding windshield of the air conditioner are detected at the same time. When there is condensed water attached to the sensor, the capacitance reading will increase. When the droplet condensed water drops accumulate to a certain volume, a water bridge will be generated by the distance between the capacitive sensor 3 and the fin 1 set in advance. Since the fin is grounded, the reading of the capacitive sensor 3 will tend to zero. However, considering that the water droplets may not be generated at the place corresponding to the capacitor, resulting in detection deviation, the droplet condensation is detected according to the wind speed change synchronously. When the droplet condensed water 2 on the fin 1 accumulates to a certain amount, it will affect the actual output wind speed. By detecting the change of wind speed, it is judged whether there is droplet condensation on the evaporator and whether the air conditioner is turned on the purification mode, so as to purify the air conditioner in advance, prevent the air conditioner from generating odor, and improve the user experience.

[0065] Step 5: The air conditioner can start the purification mode, which includes but is not limited to ultraviolet light purification, cold plasma purification, negative ion purification and other purification methods to purify the odor substances enriched in the droplet condensation on the surface of the evaporator. The purification mode is turned on in advance to remove the odor substances enriched in the droplet condensation, so as to prevent the air conditioner from generating odor. In the scheme of the present invention, if the air conditioner detects the corresponding indication, the purification mode is turned on to purify the odor enriched in the air conditioner, preventing the air conditioner from enriching the odor and blowing the odor into the room, thereby improving the user experience.

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

[0067] In the scheme of the present invention, the air conditioner is controlled to purify the air conditioner by detecting the situation of droplet condensation of condensed water on the surface of the evaporator: when the air conditioner is running, the condensation situation on the surface of the evaporator is detected by the capacitive sensor 3 to determine whether droplet condensation is generated, and at the same time, the change of wind speed under the corresponding windshield is detected to detect the generation of droplet condensation on the evaporator to compensate for the error that may be caused by the sensor, so as to determine whether the air conditioner should turn on the purification mode to purify the odor that may be enriched in the indoor unit of the air conditioner, prevent the air conditioner from enriching the odor and blowing the odor into the room, and prevent the air conditioner from generating odor, thereby improving the user experience. It not only solves the problem that the air conditioner generates odor and affects the user experience, but also solves the problem that the odor detection technology in the related scheme cannot prevent the generation of odor.

[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 the two aluminum foils on the fin 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 accumulation amount of droplet condensed water 2 generated by the droplet condensation method on the surface of the aluminum foil.

[0069] Figure 6 Schematic diagram of the relationship between the capacitive sensor 3 and the droplet of condensed water on the evaporator fin, wherein (a) is a schematic diagram of the capacitive sensor 3 in contact with the droplet of condensed water, and (b) is a schematic diagram of the capacitive sensor 3 in not contact with the droplet of condensed water. Figure 6 As shown, there are droplet-shaped condensed water 2 produced by droplet-shaped condensation on the fin 1 of the indoor heat exchanger of the air conditioner, and a capacitive sensor 3 is arranged on the fin 1 of the indoor heat exchanger of the air conditioner.

[0070] Fin 1 is two pieces of aluminum foil in the evaporator, with a gap of a certain distance between the aluminum foils, and the aluminum foil is grounded as a whole; capacitive sensor 3 is a water immersion sensor, and the capacitance value of the water immersion sensor will change after it comes into contact with water. The water immersion sensor has a certain height (that is, the water immersion sensor has a certain height or thickness in the direction along two adjacent fins), so that the distance between the surface of the water immersion sensor and the aluminum foil is closer; droplet condensed water 2 is droplets of condensed water generated by droplet condensation on fin 1 during air conditioning condensation. When the droplet condensed water 2 is left to accumulate to a certain extent, it will contact the surface of capacitive sensor 3, causing the capacitance value of capacitive sensor 3 to change, but because fin 1 is grounded, when capacitive sensor 3 and aluminum foil are connected due to the droplets of droplet condensed water 2, the capacitance value of capacitive sensor 3 will decrease and tend to zero.

[0071] In some embodiments, the number of the capacitive sensors 3 is more than one; wherein each of the more than one capacitive sensors 3 is disposed on the surface of one of the two aluminum foils on the fin 1 of the indoor heat exchanger. The value detected by the capacitance detection unit includes: the average value of the values ​​detected by all of the more than one capacitive sensors 3; when the number of the capacitive sensors 3 is more than two, the more than two 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 FIG. 3 is a schematic diagram of the array arrangement of the capacitive sensors 3 on the evaporator fins. Figure 7 As shown, on multiple fins of the air conditioner indoor unit heat exchanger, capacitive sensors 3 are arranged at intervals; for example, on six adjacent fins, capacitive sensors 3 are arranged on the first fin, the third fin, and the fifth fin, and more than two capacitive sensors 3 are arranged on each fin to form an array of capacitive sensors 3. The average value of the readings of the multiple capacitive sensors 3 arranged in an array can be used as the detection result to improve the detection accuracy. In the solution of the present invention, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensor 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 thermal insulation pad is disposed between the capacitance detection unit and the fin 1 of the indoor heat exchanger.

[0074] In the scheme of the present invention, the capacitive sensor 3 can preferably be 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 evaporator copper tube, and condensed water is first generated at this position. The condensed water at the inlet of the evaporator capillary tube can be accurately detected and purified in advance; there is an insulating pad between the capacitive sensor 3 and the aluminum foil surface to prevent condensed water from being generated on the surface of the capacitive sensor 3. The insulating pad can be an insulating material such as mineral wool, polyurethane foam, and foamed polyethylene.

[0075] By adopting the technical solution of the present embodiment, the condensation water on the surface of the indoor heat exchanger of the air conditioner (such as the situation where the condensation water on the surface of the evaporator produces droplet condensation) is detected by utilizing the change in the capacitance value of the capacitance detection unit (such as the change in the wind speed of the indoor fan); when the condensation water on the surface of the indoor heat exchanger of the air conditioner requires purification of the indoor unit, the preset purification mode is turned on to purify the indoor unit to purify the indoor unit in advance; thus, by detecting the condensation water on the surface of the indoor heat exchanger of the air conditioner, the indoor unit is purified in advance, thereby avoiding the generation of odor in the room when the odor enriched by the condensation water on the indoor heat exchanger of the air conditioner is blown into the room, thereby improving the user experience.

[0076] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for an air conditioner is also provided. Figure 4 The structure diagram of an embodiment of the device of the present invention is shown in FIG. The indoor unit of the air conditioner has an indoor heat exchanger and an indoor fan, and a capacitance detection unit is arranged on the indoor heat exchanger; the value detected by the capacitance detection unit can represent the detection value of condensed water on the indoor heat exchanger (specifically, the detection value representing the accumulation amount of condensed water on the indoor heat exchanger); in the scheme of the present invention, Figure 4 As shown, the air conditioner control device includes: an acquisition unit 102 and a control unit 104.

[0077] Wherein, the acquisition unit 102 is configured to acquire the value detected by the capacitance detection unit as the initial detection value of the accumulation amount of condensed water on the indoor heat exchanger (such as 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 condensed water on the indoor heat exchanger; acquire the value detected by the capacitance detection unit as the current detection value of the accumulation amount of condensed water on the indoor heat exchanger (such as the capacitance value C continuously detected by the capacitance sensor 3) when the air conditioner is running after being powered on, and record it as the current detection value of the condensed water on the indoor heat exchanger; and acquire the current wind speed of the indoor fan and the current actual air volume of the indoor fan. The specific functions and processing of the acquisition unit 102 refer to step S110.

[0078] The control unit 104 is configured to determine whether the indoor unit needs to be purified according to the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or, according to the current wind speed of the indoor fan and the current actual air volume of the indoor fan, determine whether the indoor unit needs to be purified. The specific functions and processing of the control unit 104 are also referred to step S120.

[0079] The control unit 104 is further configured to control the air conditioner to continue to operate if it is determined that the indoor unit does not need to be purified, and then return to continue to determine whether the indoor unit needs to be purified according to the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or continue to determine whether the indoor unit needs to be purified according to the current wind speed of the indoor fan and the current actual air volume of the indoor fan. The specific functions and processing of the control unit 104 are also shown in step S130.

[0080] The control unit 104 is also configured to, if it is determined that the indoor unit needs to be purified, initiate a prompt message that the indoor unit needs to be purified while the air conditioner is controlled to continue to run, and / or control the air conditioner to execute a preset purification mode while the air conditioner is controlled to continue to run, so as to reduce the accumulation of condensed water on the indoor heat exchanger. Thereafter, after the air conditioner is powered on next time, the initial detection value of the condensed water on the indoor heat exchanger is re-obtained, the current detection value of the condensed water on the indoor heat exchanger is re-obtained, and the current actual air volume of the indoor fan is re-obtained, so as to: re-determine whether the indoor unit needs to be purified based on the initial detection value of the condensed water on the indoor heat exchanger and the current detection value of the condensed water on the indoor heat exchanger; and / or re-determine whether the indoor unit needs to be purified based on the current wind speed of the indoor fan and the current actual air volume of the indoor fan. For example, if the indoor unit is not provided with a purification device for executing a preset purification mode, a prompt message that the indoor unit needs to be purified is initiated to prompt the user to process the indoor unit to reduce the amount of condensed water accumulated on the indoor heat exchanger. If the indoor unit is provided with a purification device for executing a preset purification mode, the air conditioner is controlled to execute the preset purification mode to reduce the amount of condensed water accumulated on the indoor heat exchanger. The specific functions and processing of the control unit 104 are also referred to step S140.

[0081] The scheme of the present invention proposes a detection scheme for odor generated by air conditioners, which can detect and purify the odor enriched in the air conditioner evaporator. Specifically, by detecting the droplet condensation generated on the surface of the evaporator, an early warning is issued for the air conditioner to generate odor, prompting the user or directly turning on the purification mode to remove the odor in advance, so that the air conditioner will not blow out the odor caused by environmental adsorption (i.e., the enrichment of odorous substances by condensed water), thereby improving the user experience.

[0082] In some implementations, the control unit 104 determines whether the indoor unit needs to be purified according to an initial detection value of condensed water on the indoor heat exchanger and a current detection value of condensed water on the indoor heat exchanger, including:

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

[0084] The control unit 104 is further configured to determine that the indoor unit needs to be purified if it is determined that the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger. The specific functions and processing of the control unit 104 are also shown in step S220.

[0085] The control unit 104 is further configured to determine that the indoor unit does not need to be purified if it is determined that the current detection value of the condensed water on the indoor heat exchanger is greater than or equal to the initial detection value of the condensed water on the indoor heat exchanger. The specific functions and processing of the control unit 104 are also shown in step S230.

[0086] Figure 5 FIG. 1 is a control logic diagram of an embodiment of a method for detecting odor generated by an air conditioner according to the present invention. Figure 5 As shown, the method for detecting odor generated by the air conditioner includes:

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

[0088] Step 2: Capacitance sensor 3 detects the initial capacitance value C0, and then executes step 3. The working principle of capacitance sensor 3 detection is based on the change of capacitance. The dielectric constant of water is much higher than that of air. Therefore, when water enters the sensing area of ​​capacitance sensor 3, it will replace part of the air and become a new medium, resulting in an increase in capacitance. The capacitance sensor 3 used in step 2 is as follows: Figure 6 The capacitance value of the capacitance sensor 3 shown in the figure will increase after the capacitance sensor 3 contacts the droplet condensation. If there is no water on the surface of the fin 1, the capacitance value is 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 device is turned on.

[0089] The installation position of the capacitive sensor 3 used in step 2 can be in any aluminum foil gap of the evaporator, so 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 Figure 7 Example shown.

[0090] Step 3, the capacitance sensor 3 continuously detects the capacitance value C, and determines whether the capacitance value C of the real-time capacitance sensor 3 is less than the initial capacitance value C0: if so, execute step 5 to enable the air conditioner to start the purification mode, otherwise execute step 6 to allow the air conditioner to continue to run. When the capacitance value C of the capacitance sensor 3 is less than the initial capacitance value C0, it is the droplet condensation generated on the surface of the aluminum foil. When the droplet condensation accumulates to a certain extent, it will contact the sensor surface and the capacitance value will decrease to zero; by judging the capacitance value, it is determined whether the air conditioner is turned on the purification mode to prevent the air conditioner from having odor.

[0091] In some implementations, the control unit 104 determines whether the indoor unit needs to be purified according to the current wind speed of the indoor fan and the current actual air volume of the indoor fan, including:

[0092] The control unit 104 is further configured to determine, 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 as the current standard air volume of the indoor fan corresponding to the current wind speed of the indoor fan. The specific functions and processing of the control unit 104 are also shown in step S310.

[0093] The control unit 104 is further configured to determine whether 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 the control unit 104 are also shown 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 the control unit 104 are also shown in step S330.

[0095] The control unit 104 is further configured to determine that the indoor unit does not need 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. The specific functions and processing of the control unit 104 are also shown in step S340.

[0096] like Figure 5 As shown, the method for detecting odor generated by the air conditioner also includes: step 4, real-time detection of whether the air volume under the corresponding wind gear of the air conditioner is greater than the target value: according to different wind gears of the air conditioner, the minimum wind speed of the wind gear under normal conditions is set (see Table 1 for details), if the detected value is less than the target value, go to step 5, otherwise go to step 6.

[0097] In the solution of the present invention, when a certain amount of droplet condensation is generated on the evaporator, there is a certain wind resistance, which will reduce the air output, thereby causing a certain decrease in the air output of the current wind speed. Table 1 exemplarily lists the optimal air output corresponding to different wind speeds of the air conditioner (i.e., the minimum air output corresponding to different wind speeds of the air conditioner).

[0098] Table 1

[0099] Windshield <![CDATA[Minimum standard air volume m 3 / h]]> 1 450 2 550 3 650 4 750 …… ……

[0100] In the scheme of the present invention, a scheme for detecting and purifying the odor enriched in the air conditioner evaporator is proposed, and the air conditioner is controlled to purify the air conditioner by detecting the droplet condensation of the condensed water on the surface of the evaporator. When the air conditioner is running, the capacitance of the capacitive sensor 3 set on the evaporator and the change of the wind speed under the corresponding windshield of the air conditioner are detected at the same time. When there is condensed water attached to the sensor, the capacitance reading will increase. When the droplet condensed water drops accumulate to a certain volume, a water bridge will be generated by the distance between the capacitive sensor 3 and the fin 1 set in advance. Since the fin is grounded, the reading of the capacitive sensor 3 will tend to zero. However, considering that the water droplets may not be generated at the place corresponding to the capacitor, resulting in detection deviation, the droplet condensation is detected according to the wind speed change synchronously. When the droplet condensed water 2 on the fin 1 accumulates to a certain amount, it will affect the actual output wind speed. By detecting the change of wind speed, it is judged whether there is droplet condensation on the evaporator and whether the air conditioner is turned on the purification mode, so as to purify the air conditioner in advance, prevent the air conditioner from generating odor, and improve the user experience.

[0101] Step 5: The air conditioner can start the purification mode, which includes but is not limited to ultraviolet light purification, cold plasma purification, negative ion purification and other purification methods to purify the odor substances enriched in the droplet condensation on the surface of the evaporator. The purification mode is turned on in advance to remove the odor substances enriched in the droplet condensation, so as to prevent the air conditioner from generating odor. In the scheme of the present invention, if the air conditioner detects the corresponding indication, the purification mode is turned on to purify the odor enriched in the air conditioner, preventing the air conditioner from enriching the odor and blowing the odor into the room, thereby improving the user experience.

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

[0103] In the scheme of the present invention, the air conditioner is controlled to purify the air conditioner by detecting the situation of droplet condensation of condensed water on the surface of the evaporator: when the air conditioner is running, the condensation situation on the surface of the evaporator is detected by the capacitive sensor 3 to determine whether droplet condensation is generated, and at the same time, the change of wind speed under the corresponding windshield is detected to detect the generation of droplet condensation on the evaporator to compensate for the error that may be caused by the sensor, so as to determine whether the air conditioner should turn on the purification mode to purify the odor that may be enriched in the indoor unit of the air conditioner, prevent the air conditioner from enriching the odor and blowing the odor into the room, and prevent the air conditioner from generating odor, thereby improving the user experience. It not only solves the problem that the air conditioner generates odor and affects the user experience, but also solves the problem that the odor detection technology in the related scheme cannot prevent the generation of odor.

[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 the two aluminum foils on the fin 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 accumulation amount of droplet condensed water 2 generated by the droplet condensation method on the surface of the aluminum foil.

[0105] Figure 6 Schematic diagram of the relationship between the capacitive sensor 3 and the droplet of condensed water on the evaporator fin, wherein (a) is a schematic diagram of the capacitive sensor 3 in contact with the droplet of condensed water, and (b) is a schematic diagram of the capacitive sensor 3 in not contact with the droplet of condensed water. Figure 6 As shown, there are droplet-shaped condensed water 2 produced by droplet-shaped condensation on the fin 1 of the indoor heat exchanger of the air conditioner, and a capacitive sensor 3 is arranged on the fin 1 of the indoor heat exchanger of the air conditioner.

[0106] Fin 1 is two pieces of aluminum foil in the evaporator, with a gap of a certain distance between the aluminum foils, and the aluminum foil is grounded as a whole; capacitive sensor 3 is a water immersion sensor, and the capacitance value of the water immersion sensor will change after it comes into contact with water. The water immersion sensor has a certain height (that is, the water immersion sensor has a certain height or thickness in the direction along two adjacent fins), so that the distance between the surface of the water immersion sensor and the aluminum foil is closer; droplet condensed water 2 is droplets of condensed water generated by droplet condensation on fin 1 during air conditioning condensation. When the droplet condensed water 2 is left to accumulate to a certain extent, it will contact the surface of capacitive sensor 3, causing the capacitance value of capacitive sensor 3 to change, but because fin 1 is grounded, when capacitive sensor 3 and aluminum foil are connected due to the droplets of droplet condensed water 2, the capacitance value of capacitive sensor 3 will decrease and tend to zero.

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

[0108] Figure 7 FIG. 3 is a schematic diagram of the array arrangement of the capacitive sensors 3 on the evaporator fins. Figure 7 As shown, on multiple fins of the air conditioner indoor unit heat exchanger, capacitive sensors 3 are arranged at intervals; for example, on six adjacent fins, capacitive sensors 3 are arranged on the first fin, the third fin, and the fifth fin, and more than two capacitive sensors 3 are arranged on each fin to form an array of capacitive sensors 3. The average value of the readings of the multiple capacitive sensors 3 arranged in an array can be used as the detection result to improve the detection accuracy. In the solution of the present invention, multiple capacitive sensors 3 are arranged in an array on the evaporator to improve the contact efficiency between the sensor 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 thermal insulation pad is disposed between the capacitance detection unit and the fin 1 of the indoor heat exchanger.

[0110] In the scheme of the present invention, the capacitive sensor 3 can preferably be 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 evaporator copper tube, and condensed water is first generated at this position. The condensed water at the inlet of the evaporator capillary tube can be accurately detected and purified in advance; there is an insulating pad between the capacitive sensor 3 and the aluminum foil surface to prevent condensed water from being generated on the surface of the capacitive sensor 3. The insulating pad can be an insulating material such as mineral wool, polyurethane foam, and foamed polyethylene.

[0111] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

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

[0113] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to 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, and when the computer program is executed by a processor, the steps of the air conditioner control method described above are implemented.

[0115] Since the processing and functions implemented by the product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned air conditioner, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

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

[0117] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0118] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0119] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in 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 can represent the detection value of condensed water on the indoor heat exchanger; The air conditioner control method comprises: When the air conditioner is powered on, the value detected by the capacitance detection unit is obtained and recorded as the initial detection value of the condensed water 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 and recorded as the current detection value of the condensed water on the indoor heat exchanger; and the current wind speed of the indoor fan is obtained, and the current actual air output of the indoor fan is obtained; Determine whether the indoor unit needs to be purified according to an initial detection value of condensed water on the indoor heat exchanger and a current detection value of condensed water on the indoor heat exchanger; and / or determine whether the indoor unit needs to be purified according to a current wind speed of the indoor fan and a current actual air volume of the indoor fan; If it is determined that the indoor unit does not need to be purified, controlling the air conditioner 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 accumulation of condensed water on the indoor heat exchanger.

2. The air conditioner control method according to claim 1, characterized in that: Determining whether the indoor unit needs to be purified according to an initial detection value of condensed water on the indoor heat exchanger and a current detection value of condensed water on the indoor heat exchanger includes: determining whether a current detection value of condensed water on the indoor heat exchanger is less than an initial detection value of condensed water on the indoor heat exchanger; If it is determined that the current detection value of the condensed water on the indoor heat exchanger is less than the initial detection value of the condensed water on the indoor heat exchanger, it is determined that the indoor unit needs to be purified; If it is determined that the current detection value of the condensed water on the indoor heat exchanger is greater than or equal to the initial detection value of the condensed water on the indoor heat exchanger, it is determined that the indoor unit does not need to be purified.

3. The air conditioner control method according to claim 1, characterized in that: Determining whether the indoor unit needs to be purified according to the current wind speed of the indoor fan and the current actual air output of the indoor fan includes: According to 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; Determining 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, 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, it is determined that the indoor unit does not need to be purified.

4. The air conditioner control method according to any one of claims 1 to 3, characterized in that: The capacitance detection unit comprises: a capacitance sensor (3); wherein: The capacitive sensor (3) is arranged on the surface of one of the two aluminum foils on the fin (1) of the indoor heat exchanger; The value detected by the capacitance detection unit comprises: the value detected by the capacitance sensor (3); the value detected by the capacitance sensor (3) is used to characterize the accumulation amount of droplet condensed water (2) generated by droplet condensation on the surface of the aluminum foil.

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

6. The air conditioner control method according to any one of claims 1 to 5, characterized in that: in, The capacitance detection unit is arranged on the fin (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 fin (1) of the indoor heat exchanger.

7. A control device for 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 can represent the detection value of condensed water on the indoor heat exchanger; The control device of the air conditioner comprises: an acquisition unit configured to acquire, when the air conditioner is powered on and turned on, a value detected by the capacitance detection unit and recorded as an initial detection value of condensed water on the indoor heat exchanger; acquire, when the air conditioner is turned on and running, a value detected by the capacitance detection unit and recorded as a current detection value of condensed water on the indoor heat exchanger; and acquire a current wind speed of the indoor fan and acquire a current actual air volume of the indoor fan; A control unit is configured to determine whether the indoor unit needs to be purified according to an initial detection value of condensed water on the indoor heat exchanger and a current detection value of condensed water on the indoor heat exchanger; and / or determine whether the indoor unit needs to be purified according to a current wind speed of the indoor fan and a current actual air volume of the indoor fan; The control unit is further configured to control the air conditioner to continue to operate if it is determined that the indoor unit does not need to be purified; The control unit is also configured to initiate a prompt message indicating that the indoor unit needs to be purified if it is determined that the indoor unit needs to be purified, and / or control the air conditioner to execute a preset purification mode to reduce the accumulation of condensed water on the indoor heat exchanger.

8. An air conditioner, characterized in that: include: The air conditioner control device as claimed in claim 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 6 are implemented.

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