Air conditioner self-cleaning control method and device based on variable shunting and air conditioner

Abstract

The invention provides an air conditioner self-cleaning control method and device based on variable shunting and an air conditioner, and is applied to the field of air conditioner control. The method comprises the steps that under the condition that a self-cleaning instruction is received, the heat exchange efficiency of an outdoor heat exchanger is determined; a target cleaning mode is determined based on the heat exchange efficiency of the outdoor heat exchanger, and the air conditioner is controlled to execute self-cleaning operation according to the target cleaning mode; wherein the target cleaning mode comprises a first cleaning mode and a second cleaning mode; the first cleaning mode is that self-cleaning operation is executed according to a default cleaning mode set by the system; the second cleaning mode is that self-cleaning operation is executed in a variable flow dividing mode. According to the air conditioner self-cleaning control method and device based on variable flow division and the air conditioner, different cleaning strategies are provided according to the smudginess condition of the surface of an outdoor heat exchanger, and even if the smudginess degree of the surface of the heat exchanger is serious, the good self-cleaning effect can be achieved.

Description

Technical Field

[0001] The present application relates to the field of air conditioner control, and in particular to a variable split-flow-based air conditioner self-cleaning control method, device and air conditioner. Background Art

[0002] As people's living standards continue to improve and the level of intelligence of home appliances continues to increase, smart home appliances are becoming more and more popular. Users can use air conditioners for heating in winter to increase the indoor temperature, and can also use air conditioners for cooling in summer to reduce the indoor temperature.

[0003] In order to prevent the outdoor heat exchanger from becoming dirty after long-term use, which would affect the heat exchange efficiency of the outdoor heat exchanger, the air conditioner is provided with a self-cleaning function, which cleans the heat exchanger surface by forming condensed water on the surface of the outdoor heat exchanger.

[0004] However, the self-cleaning method in the related art has a poor self-cleaning effect when the heat exchange efficiency of the outdoor unit heat exchanger is low. Summary of the invention

[0005] The purpose of the present application is to provide a self-cleaning control method, device and air conditioner for an air conditioner based on variable diversion, which provides different cleaning strategies according to the dirtiness of the surface of the outdoor heat exchanger, and can achieve a better self-cleaning effect even if the surface of the heat exchanger is severely dirty.

[0006] The present application provides a method for controlling a self-cleaning air conditioner based on variable flow splitting, comprising: When a self-cleaning instruction is received, the heat exchange efficiency of the outdoor heat exchanger is determined; a target cleaning method is determined based on the heat exchange efficiency of the outdoor heat exchanger, and the air conditioner is controlled to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of variable diversion.

[0007] Optionally, determining the heat exchange efficiency of the outdoor heat exchanger includes: obtaining the difference between the current outdoor ambient temperature and humidity and the target temperature of the outdoor heat exchanger, and determining a heat exchange efficiency correction coefficient based on the current outdoor ambient temperature and humidity, and determining the heat exchange efficiency to be adjusted based on the target temperature difference; multiplying the first heat exchange efficiency by the heat exchange efficiency correction coefficient to obtain a target product, and determining a standard heat exchange efficiency corresponding to the target product based on a target relationship comparison table as the heat exchange efficiency of the outdoor heat exchanger; wherein the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, and the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

[0008] Optionally, determining the target cleaning mode based on the heat exchange efficiency of the outdoor heat exchanger includes: when the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold, determining the first cleaning mode as the target cleaning mode; or, when the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold, determining the second cleaning mode as the target cleaning mode.

[0009] Optionally, controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode includes: when the target cleaning mode is the first cleaning mode, controlling the air conditioner to perform a self-cleaning operation according to a preset self-cleaning strategy.

[0010] Optionally, controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode includes: when the target cleaning mode is the second cleaning mode, controlling the diverter to perform a single-way diversion, and controlling the air conditioner to perform a single-way diversion self-cleaning operation in the single-way diversion mode; after performing the single-way diversion self-cleaning operation for a preset time, controlling the diverter to perform multi-way diversion, and controlling the air conditioner to perform a multi-way diversion self-cleaning operation in the multi-way diversion mode; wherein, when performing the single-way diversion self-cleaning operation, the upper condensate flow of the outdoor heat exchanger is cleaned from top to bottom.

[0011] The present application also provides an air conditioner self-cleaning control device based on variable diversion, comprising: A determination module is used to determine the heat exchange efficiency of the outdoor heat exchanger when a self-cleaning instruction is received, and to determine a target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger; a control module is used to control the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by a variable diversion method.

[0012] Optionally, the device also includes: an acquisition module; the acquisition module is used to obtain the current outdoor ambient temperature and humidity, and the target temperature difference of the outdoor heat exchanger; the determination module is specifically used to determine the heat exchange efficiency correction coefficient based on the current outdoor ambient temperature and humidity, and determine the heat exchange efficiency to be adjusted based on the target temperature difference; the determination module is also specifically used to multiply the first heat exchange efficiency by the heat exchange efficiency correction coefficient to obtain a target product, and determine the standard heat exchange efficiency corresponding to the target product based on the target relationship comparison table as the heat exchange efficiency of the outdoor heat exchanger; wherein the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

[0013] Optionally, the determination module is specifically used to determine the first cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold; the determination module is also specifically used to determine the second cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold.

[0014] Optionally, the control module is specifically configured to control the air conditioner to perform a self-cleaning operation according to a preset self-cleaning strategy when the target cleaning mode is the first cleaning mode.

[0015] Optionally, the control module is specifically used to control the diverter to perform single-way diversion when the target cleaning mode is the second cleaning mode, and to control the air conditioner to perform a single-way diversion self-cleaning operation in the single-way diversion mode; the control module is also specifically used to control the diverter to perform multi-way diversion after performing the single-way diversion self-cleaning operation for a preset time, and to control the air conditioner to perform a multi-way diversion self-cleaning operation in the multi-way diversion mode; wherein, when performing the single-way diversion self-cleaning operation, the upper condensate flow of the outdoor heat exchanger is cleaned from top to bottom.

[0016] The present application also provides a computer program product, comprising a computer program / instruction, which, when executed by a processor, implements the steps of any of the above-mentioned air conditioner self-cleaning control methods based on variable split.

[0017] The present application also provides an electronic device, which may be an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the air conditioner self-cleaning control method based on variable diversion as described in any one of the above are implemented.

[0018] The present application also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the air conditioner self-cleaning control method based on variable diversion as described in any one of the above are implemented.

[0019] The present application provides a variable shunt-based air conditioner self-cleaning control method, device, and air conditioner. First, upon receiving a self-cleaning instruction, the heat exchange efficiency of the outdoor heat exchanger is determined; then, a target cleaning method is determined based on the heat exchange efficiency of the outdoor heat exchanger, and the air conditioner is controlled to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of a variable shunt. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, and a better self-cleaning effect can be achieved even if the surface of the heat exchanger is severely dirty. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1It is a structural schematic diagram of the throttling unit and the diverter provided by the present application; Figure 2 It is a structural schematic diagram of an outdoor heat exchanger provided by the present application; Figure 3 It is a flow chart of a method for controlling the air conditioner self-cleaning based on variable flow splitting provided by the present application; Figure 4 It is a structural schematic diagram of an air conditioner self-cleaning control device based on variable split provided by the present application; Figure 5 It is a structural schematic diagram of the electronic device provided by this application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0024] The operating principle of the air conditioner involved in the embodiment of the present application is described in detail below: The compressor compresses the refrigerant (coolant) and transports it to the condenser through a pipeline. The high-temperature and high-pressure gaseous refrigerant releases heat in the condenser and becomes a medium-temperature and high-pressure liquid refrigerant. After that, the medium-temperature and high-pressure liquid refrigerant is depressurized by a capillary tube (throttling unit) and becomes a low-temperature and low-pressure liquid refrigerant. The low-temperature and low-pressure liquid refrigerant is transported to the evaporator to evaporate from liquid to gas, and absorbs a large amount of heat during the evaporation process. Finally, the low-temperature and low-pressure gaseous refrigerant in the evaporator is transported to the compressor to participate in the next cycle. When the air conditioner is cooling, the heat exchanger of the outdoor unit is the condenser, and the heat exchanger of the indoor unit is the evaporator; conversely, when the air conditioner is heating, the heat exchanger of the outdoor unit is the evaporator, and the heat exchanger of the indoor unit is the condenser.

[0025] like Figure 1 The figure shows a schematic diagram of the structure of the throttling unit and the diverter provided in the embodiment of the present application. The diverter can be an integral structure with the throttling unit, or a separate structure. When the supercooling degree of the air conditioner is low, the supercooling degree of the air conditioner can be increased by adjusting the diversion mode of the diverter. The adjustment mode includes: adjusting from single-way diversion to dual-way diversion, or adjusting from dual-way diversion to single-way diversion. Based on Figure 1 ,like Figure 2 As shown, the two diverter pipes (including pipe A and pipe B) of the diverter can be connected to two pipes on the outdoor heat exchanger respectively so that the diverting mode can be adjusted.

[0026] In response to the technical problem in the related art that the self-cleaning effect is poor when the surface of the outdoor heat exchanger is severely dirty, the embodiment of the present application provides an air conditioner self-cleaning control method based on variable diversion. When the heat exchange efficiency of the outdoor heat exchanger is low due to severe surface dirtiness, the self-cleaning effect can be improved by changing the diversion method.

[0027] The air conditioner self-cleaning control method based on variable diversion provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in combination with the accompanying drawings.

[0028] like Figure 3 As shown, an air conditioner self-cleaning control method based on variable split flow is provided in an embodiment of the present application. The method may include the following steps 301 and 302: Step 301: upon receiving a self-cleaning instruction, determine the heat exchange efficiency of the outdoor heat exchanger.

[0029] It is understandable that when the surface of the outdoor heat exchanger is seriously dirty, it will greatly affect the heat exchange efficiency of the heat exchanger, and at this time, it will greatly affect the cleaning effect of the traditional self-cleaning method. Based on this, after receiving the self-cleaning instruction, it is necessary to first determine the heat exchange efficiency of the outdoor heat exchanger. If the heat exchange efficiency is high, the air conditioner can be controlled to perform self-cleaning operations according to the default self-cleaning strategy set by the system; if the heat exchange efficiency is low, self-cleaning can be performed by changing the diversion method.

[0030] Specifically, in the above step 301, the step of determining the heat exchange efficiency of the outdoor heat exchanger may further include the following steps 301a: Step 301a: multiply the first heat exchange efficiency by the heat exchange efficiency correction coefficient to obtain a target product, and determine a standard heat exchange efficiency corresponding to the target product based on a target relationship comparison table as the heat exchange efficiency of the outdoor heat exchanger.

[0031] Among them, the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

[0032] It should be noted that the heat exchange efficiency of the heat exchanger is closely related to the temperature and humidity of the environment. Ambient temperature: In a high temperature environment, the heat exchanger of the air conditioner is less effective in heat dissipation, because the heat in the surrounding air is already very high and it is not easy to absorb more heat, resulting in reduced heat exchange efficiency. Conversely, in a low temperature environment, the heat exchanger has a better heat dissipation effect, but too low a temperature may cause frost problems and affect the normal operation of the heat exchanger. Ambient humidity: In a high humidity environment, the surface of the heat exchanger is prone to condensation or even frost. This will not only reduce the heat exchange efficiency, but may also cause the heat exchanger to require frequent defrosting operations. In a low humidity environment, the heat exchange of the heat exchanger will be smoother, but if the humidity is too low, it may also affect the comfort of the air and the overall effect of the air conditioner.

[0033] For example, after determining the heat exchange efficiency of the outdoor heat exchanger by looking up a table according to the temperature and humidity conditions of the current outdoor environment, the corresponding cleaning method can be determined according to the heat exchange efficiency of the outdoor heat exchanger.

[0034] Step 302: determine a target cleaning mode based on the heat exchange efficiency of the outdoor heat exchanger, and control the air conditioner to perform a self-cleaning operation according to the target cleaning mode.

[0035] Among them, the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by a variable diversion method.

[0036] For example, since changing the diversion mode can improve the heat exchange efficiency, when it is determined that the heat exchange efficiency of the outdoor heat exchanger is low, the diversion mode can be changed to perform self-cleaning to improve the cleaning effect.

[0037] Specifically, in the above step 302, the step of determining the cleaning method corresponding to the heat exchange efficiency may also include the following step 302a1 or step 302b1: Step 302a1: when the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold, determine the first cleaning mode as the target cleaning mode.

[0038] Specifically, based on the above step 302a1, the above step 302 may further include the following step 302a2: Step 302a2: when the target cleaning mode is the first cleaning mode, control the air conditioner to perform a self-cleaning operation according to a preset self-cleaning strategy.

[0039] For example, when the heat exchange efficiency of the outdoor heat exchanger is high, the system default self-cleaning strategy (ie, the first cleaning method described above) may be used to control the air conditioner to perform a self-cleaning operation.

[0040] Step 302b1: when the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold, determine the second cleaning mode as the target cleaning mode.

[0041] For example, when the heat exchange efficiency of the outdoor heat exchanger is low, a self-cleaning strategy of changing the diversion mode (ie, the second cleaning mode described above) may be used to control the air conditioner to perform a self-cleaning operation.

[0042] Specifically, based on the above step 302b1, the above step 302 may further include the following steps 302b2 and 302b3: Step 302b2: when the target cleaning mode is the second cleaning mode, control the diverter to perform single-way diversion, and control the air conditioner to perform single-way diversion self-cleaning operation in the single-way diversion mode.

[0043] Step 302b3: After executing the single-way diversion self-cleaning operation for a preset time, control the diverter to perform multi-way diversion, and control the air conditioner to perform multi-way diversion self-cleaning operation in the multi-way diversion mode.

[0044] Among them, when performing the single-path diversion self-cleaning operation, the upper condensate flow of the outdoor heat exchanger is cleaned from top to bottom.

[0045] For example, the self-cleaning method of the single-way diversion of the outdoor unit is to allow more frost to form a water flow to impact the bottom after defrosting, and finally use the self-cleaning method of multi-way diversion for deep cleaning.

[0046] The air conditioner self-cleaning control method based on variable diversion provided in the embodiment of the present application first determines the heat exchange efficiency of the outdoor heat exchanger when a self-cleaning instruction is received; then, determines the target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger, and controls the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of variable diversion. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, and a better self-cleaning effect can be achieved even if the surface of the heat exchanger is severely dirty.

[0047] It should be noted that the air conditioner self-cleaning control method based on variable shunt provided in the embodiment of the present application can be executed by a variable shunt-based air conditioner self-cleaning control device, or a control module in the variable shunt-based air conditioner self-cleaning control device for executing the variable shunt-based air conditioner self-cleaning control method. In the embodiment of the present application, the air conditioner self-cleaning control device based on variable shunt executing the variable shunt-based air conditioner self-cleaning control method is taken as an example to illustrate the variable shunt-based air conditioner self-cleaning control device provided in the embodiment of the present application.

[0048] It should be noted that, in the embodiments of the present application, the air conditioner self-cleaning control method based on variable shunt shown in the above-mentioned method drawings is illustrated by taking one of the drawings in the embodiments of the present application as an example. In specific implementation, the air conditioner self-cleaning control method based on variable shunt shown in the above-mentioned method drawings can also be implemented in combination with any other drawings that can be combined as shown in the above-mentioned embodiments, which will not be repeated here.

[0049] The air conditioner self-cleaning control device based on variable diversion provided in the present application is described below, and the air conditioner self-cleaning control method based on variable diversion described above can be referenced to each other.

[0050] Figure 4 A schematic diagram of the structure of an air conditioner self-cleaning control device based on variable diversion provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, specifically including: The determination module 401 is used to determine the heat exchange efficiency of the outdoor heat exchanger when a self-cleaning instruction is received, and determine the target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger; the control modules 402402 are used to control the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by a variable diversion method.

[0051] Optionally, the device also includes: an acquisition module; the acquisition module is used to obtain the current outdoor ambient temperature and humidity, and the target temperature difference of the outdoor heat exchanger; the determination module 401 is specifically used to determine the heat exchange efficiency correction coefficient based on the current outdoor ambient temperature and humidity, and determine the heat exchange efficiency to be adjusted based on the target temperature difference; the determination module 401 is also specifically used to multiply the first heat exchange efficiency by the heat exchange efficiency correction coefficient to obtain a target product, and determine the standard heat exchange efficiency corresponding to the target product based on the target relationship comparison table as the heat exchange efficiency of the outdoor heat exchanger; wherein the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

[0052] Optionally, the determination module 401 is specifically used to determine the first cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold; the determination module 401 is also specifically used to determine the second cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold.

[0053] Optionally, the control module 402 is specifically configured to control the air conditioner to perform a self-cleaning operation according to a preset self-cleaning strategy when the target cleaning mode is the first cleaning mode.

[0054] Optionally, the control module 402 is specifically used to control the diverter to perform single-way diversion when the target cleaning mode is the second cleaning mode, and to control the air conditioner to perform a single-way diversion self-cleaning operation in the single-way diversion mode; the control module 402 is also specifically used to control the diverter to perform multi-way diversion after performing the single-way diversion self-cleaning operation for a preset time, and to control the air conditioner to perform a multi-way diversion self-cleaning operation in the multi-way diversion mode; wherein, when performing the single-way diversion self-cleaning operation, the upper condensate flow of the outdoor heat exchanger is cleaned from top to bottom.

[0055] The variable shunt-based air conditioner self-cleaning control device provided by the present application first determines the heat exchange efficiency of the outdoor heat exchanger when receiving a self-cleaning instruction; then, determines the target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger, and controls the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of a variable shunt. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, and a better self-cleaning effect can be achieved even if the surface of the heat exchanger is severely dirty.

[0056] Figure 5 The physical structure diagram of an electronic device is shown as an example. The electronic device may be the above-mentioned air conditioner. Figure 5 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communication interface 520 and the memory 530 communicate with each other through the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute the air conditioner self-cleaning control method based on variable diversion, the method comprising: first, upon receiving the self-cleaning instruction, determining the heat exchange efficiency of the outdoor heat exchanger; then, determining the target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger, and controlling the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method comprises: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of a variable diversion. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, so that even if the dirtiness of the heat exchanger surface is serious, a better self-cleaning effect can be achieved.

[0057] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0058] On the other hand, the present application also provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by the computer, the computer can execute the air conditioner self-cleaning control method based on variable diversion provided by the above methods, the method comprising: first, in the case of receiving a self-cleaning instruction, determining the heat exchange efficiency of the outdoor heat exchanger; then, determining a target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger, and controlling the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of a variable diversion. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, and even if the surface of the heat exchanger is seriously dirty, a better self-cleaning effect can be achieved.

[0059] On the other hand, the present application also provides a computer-readable storage medium having a computer program stored thereon, which is implemented when the processor executes the above-mentioned variable diversion-based air conditioner self-cleaning control method, the method comprising: first, upon receiving a self-cleaning instruction, determining the heat exchange efficiency of the outdoor heat exchanger; then, determining a target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger, and controlling the air conditioner to perform a self-cleaning operation according to the target cleaning method; wherein the target cleaning method comprises: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by means of a variable diversion. In this way, different cleaning strategies are provided according to the dirtiness of the surface of the outdoor heat exchanger, so that even if the surface of the heat exchanger is severely dirty, a better self-cleaning effect can be achieved.

[0060] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0061] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-cleaning control method for an air conditioner based on variable split flow, characterized in that: A control unit applied to an air conditioner, wherein a diverter is provided on the outdoor unit of the air conditioner, and the diverter includes: single-way diverter and multi-way diverter; The method comprises: determining a heat exchange efficiency of the outdoor heat exchanger in response to a self-cleaning instruction; determining a target cleaning mode based on the heat exchange efficiency of the outdoor heat exchanger, and controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode; Among them, the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by a variable diversion method.

2. The method according to claim 1, characterized in that Determining the heat exchange efficiency of the outdoor heat exchanger includes: Obtaining the current outdoor ambient temperature and humidity and the target temperature difference of the outdoor heat exchanger, and determining the heat exchange efficiency correction coefficient based on the current outdoor ambient temperature and humidity, and determining the heat exchange efficiency to be adjusted based on the target temperature difference; The first heat exchange efficiency is multiplied by the heat exchange efficiency correction coefficient to obtain a target product, and a standard heat exchange efficiency corresponding to the target product is determined based on a target relationship comparison table as the heat exchange efficiency of the outdoor heat exchanger; Among them, the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

3. The method according to claim 1 or 2, characterized in that: The determining of the target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger includes: When the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold, determining the first cleaning mode as the target cleaning mode; or, When the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold, the second cleaning mode is determined as the target cleaning mode.

4. The method according to claim 3, characterized in that The step of controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode includes: When the target cleaning mode is the first cleaning mode, the air conditioner is controlled to perform a self-cleaning operation according to a preset self-cleaning strategy.

5. The method according to claim 3, characterized in that: The step of controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode includes: When the target cleaning mode is the second cleaning mode, controlling the diverter to perform single-way diversion, and controlling the air conditioner to perform single-way diversion self-cleaning operation in the single-way diversion mode; After performing the single-way diversion self-cleaning operation for a preset time, controlling the diverter to perform multi-way diversion, and controlling the air conditioner to perform the multi-way diversion self-cleaning operation in the multi-way diversion mode; Among them, when performing the single-path diversion self-cleaning operation, the upper condensate flow of the outdoor heat exchanger is cleaned from top to bottom.

6. An air conditioner self-cleaning control device based on variable split flow, characterized in that: A control unit applied to an air conditioner, wherein a diverter is provided on the outdoor unit of the air conditioner, and the diverter includes: single-way diverter and multi-way diverter; The device comprises: A determination module, configured to determine the heat exchange efficiency of the outdoor heat exchanger when receiving a self-cleaning instruction, and determine a target cleaning method based on the heat exchange efficiency of the outdoor heat exchanger; A control module, used for controlling the air conditioner to perform a self-cleaning operation according to the target cleaning mode; Among them, the target cleaning method includes: a first cleaning method and a second cleaning method; the first cleaning method is: performing a self-cleaning operation according to a default cleaning method set by the system; the second cleaning method is: performing a self-cleaning operation by a variable diversion method.

7. The device according to claim 6, characterized in that The device also includes: an acquisition module; The acquisition module is used to obtain the current outdoor ambient temperature and humidity and the target temperature difference of the outdoor heat exchanger; The determination module is specifically used to determine the heat exchange efficiency correction coefficient based on the current outdoor environment temperature and humidity, and to determine the heat exchange efficiency to be adjusted based on the target temperature difference; The determination module is further configured to obtain a target product by multiplying the first heat exchange efficiency by the heat exchange efficiency correction coefficient, and determine a standard heat exchange efficiency corresponding to the target product as the heat exchange efficiency of the outdoor heat exchanger based on a target relationship comparison table; Among them, the heat exchange efficiency correction coefficient is negatively correlated with the ambient humidity; when the outdoor heat exchanger is used as an evaporator, the heat exchange efficiency correction coefficient is negatively correlated with the ambient temperature; when the outdoor heat exchanger is used as a condenser, the heat exchange efficiency correction coefficient is positively correlated with the ambient temperature; the target temperature difference is any one of the following: the difference between the air inlet temperature and the air outlet temperature of the outdoor heat exchanger, the difference between the refrigerant inlet temperature and the refrigerant outlet temperature of the outdoor heat exchanger; the target relationship comparison table is used to characterize the standard heat exchange efficiency corresponding to different temperatures and humidities.

8. The device according to claim 6 or 7, characterized in that The determination module is specifically configured to determine the first cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is greater than or equal to a preset efficiency threshold; The determination module is further specifically configured to determine the second cleaning mode as the target cleaning mode when the heat exchange efficiency of the outdoor heat exchanger is less than the preset efficiency threshold.

9. An air conditioner, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the air conditioner self-cleaning control method based on variable diversion as claimed in any one of claims 1 to 5 are implemented.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the steps of the air conditioner self-cleaning control method based on variable split as claimed in any one of claims 1 to 5 are implemented.

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