Variable shunting-based fan reverse-rotation de-operation control method and device and air conditioner

Abstract

The invention provides a fan reverse dedusting operation control method and device based on variable shunting and an air conditioner, and is applied to the field of air conditioner control. Heating dust removal operation is circularly executed for preset times, and the temperature of an outlet of the condenser reaches a first preset threshold value during execution every time; wherein the dust removal operation comprises the steps that an outdoor heat exchanger heating control strategy is executed, and dust removal is conducted on an outdoor unit of the air conditioner through different flow dividing modes of a flow divider; the flow divider is arranged on the air conditioner, and the flow dividing mode of the flow divider comprises single-path flow dividing and multi-path flow dividing. One end of the flow divider is connected with the throttling unit, and the other end of the flow divider is connected with a heat exchanger on the outdoor unit. According to the fan reverse dedusting operation control method and device based on variable shunting and the air conditioner, rapid dedusting is conducted on the outdoor unit heat exchanger, so that the heat exchange efficiency of the outdoor unit heat exchanger is improved, the refrigerating and heating capacity of the air conditioner is recovered, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioner control, and in particular to a fan reverse operation control method and device based on variable split and an 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] After the air conditioner has been used for a long time, a lot of dust will adhere to the surface of the heat exchanger of the outdoor unit. This dust will reduce the heat exchange efficiency of the heat exchanger, which will not only affect the cooling and heating effects, but also increase the power consumption and noise of the air conditioner to a certain extent.

[0004] Based on this, there is an urgent need for a control method that can quickly remove dust from the outdoor heat exchanger to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience. Summary of the invention

[0005] The purpose of this application is to provide a fan reverse operation control method, device and air conditioner based on variable diversion, which is used to quickly remove dust from the outdoor heat exchanger to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience.

[0006] The present application provides a fan reverse operation control method based on variable split flow, comprising: Receive a reverse dust removal instruction; cyclically execute a preset number of heating and dust removal operations, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is executed; wherein the heating and dust removal operation includes: executing an outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner, and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

[0007] Optionally, the cycle executes the heating and dust removal operations for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is executed, including: controlling the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and setting the diversion mode of the diverter to multi-way diversion; when the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, controlling the fan on the outdoor unit to rotate in the reverse direction at a maximum speed, and adjusting the diversion mode of the diverter to single-way diversion; wherein, before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches the second preset threshold, the fan on the outdoor unit is in a non-operating state.

[0008] Optionally, the cycle executes the heating and dust removal operation a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is performed, including: after the fan of the outdoor unit rotates in the reverse direction at the maximum speed, determining whether the outlet temperature of the condenser reaches the first preset threshold; when the outlet temperature of the condenser reaches the first preset threshold, determining that this round of heating and dust removal operation is completed.

[0009] Optionally, the cycle executes the heating and dust removal operations for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the cycle is executed, including: after executing the heating and dust removal operations for the preset number of times, controlling the air conditioner to return to the operating state before receiving the reverse dust removal instruction.

[0010] Optionally, before the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually increases; after the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually decreases.

[0011] The present application also provides a fan reverse operation control device based on variable split flow, comprising: An instruction receiving module is used to receive a reverse dust removal instruction; a control module is used to cyclically execute a preset number of heating and dust removal operations, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is executed; wherein the heating and dust removal operation includes: executing an outdoor heat exchanger heating control strategy, and using different diversion modes of a diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

[0012] Optionally, the control module is specifically used to control the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and set the diversion mode of the diverter to multi-way diversion; the control module is also specifically used to control the fan on the outdoor unit to rotate in the opposite direction at the maximum speed when the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, and adjust the diversion mode of the diverter to single-way diversion; wherein, before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches the second preset threshold, the fan on the outdoor unit is in a non-operating state.

[0013] Optionally, the control module is specifically used to determine whether the outlet temperature of the condenser reaches the first preset threshold after the fan of the outdoor unit rotates in the reverse direction at the maximum speed; the control module is also specifically used to determine that the current round of heating and dust removal operation is completed when the outlet temperature of the condenser reaches the first preset threshold.

[0014] Optionally, the control module is specifically used to control the air conditioner to return to the operating state before receiving the reverse dust removal instruction after performing the preset number of heating and dust removal operations.

[0015] Optionally, before the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually increases; after the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually decreases.

[0016] The present application also provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the steps of any of the above-mentioned variable split-flow-based fan reversal operation control methods.

[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 fan reversal operation 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, which, when executed by a processor, implements the steps of any of the above-mentioned variable split-flow-based fan reversing and operation control methods.

[0019] The fan reverse dust removal operation control method, device and air conditioner based on variable diversion provided by the present application first receive a reverse dust removal instruction; then, execute the heating dust removal operation for a preset number of times in a loop, and the temperature of the condenser outlet reaches a first preset threshold value each time the operation is executed; wherein the heating dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner, and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit. In this way, the outdoor unit heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience. 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 1 It 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 This is one of the flow charts of the fan reversing operation control method based on variable split provided in the present application; Figure 4 This is the second flow chart of the fan reverse operation control method based on variable split provided by the present application; Figure 5 It is a structural schematic diagram of a fan reverse operation control device based on variable split provided by the present application; Figure 6 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] In view of the above technical problems existing in the related art, the embodiment of the present application provides a fan reverse operation control method based on variable split flow, which utilizes variable split flow technology, such as Figure 1 As shown in the figure, a flow divider connected to the throttling unit can be an integrated structure with the throttling unit or a split structure. When the supercooling degree of the air conditioner is low, the supercooling degree of the air conditioner can be improved by adjusting the flow diversion mode of the flow divider. The adjustment mode includes: adjusting from single-way diversion to double-way diversion, or adjusting from double-way diversion to single-way diversion. Based on Figure 3 ,like Figure 4 As shown, the two shunt pipes (including pipe A and pipe B) of the shunt can be connected to the two pipes on the outdoor heat exchanger respectively, so that the shunt mode can be adjusted. The fan reverse dust removal operation control method based on variable shunt provided in the embodiment of the present application first determines whether the air conditioner enters a reverse dust removal process, heats the outdoor heat exchanger to dry the dust on the surface of the outdoor heat exchanger, and then switches to single-way shunt, and combines the fan reverse maximum wind speed to facilitate dust removal.

[0026] The fan reverse operation control method based on variable split provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0027] like Figure 3 As shown, an embodiment of the present application provides a fan reverse operation control method based on variable split flow, and the method may include the following steps 301 and 302: Step 301: Receive a reverse dust removal instruction.

[0028] Exemplarily, the above-mentioned reverse dust removal instruction can be sent by a remote control of the air conditioner, or can be issued by a user through an application on a mobile terminal such as a mobile phone or a tablet, or can be executed on a scheduled basis by the air conditioner.

[0029] For example, after receiving the reverse dust removal instruction, the air conditioner can perform a preset heating and dust removal operation, which depends on controlling the heating of the outdoor heat exchanger and adjusting the diversion mode of the diverter. The control of heating the outdoor heat exchanger can be achieved through the heating mode.

[0030] Step 302: cyclically execute the heating and dust removal operation for a preset number of times, and the temperature at the condenser outlet reaches a first preset threshold each time the operation is executed.

[0031] Among them, the heating and dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion methods of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is set on the air conditioner and the diversion methods of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

[0032] For example, in an embodiment of the present application, it is first determined whether the air conditioner has entered a reverse dust removal process, by heating the outdoor heat exchanger to dry the dust on the surface of the outdoor heat exchanger, and then switching to a single-path diversion is performed, and the fan reverse maximum wind speed is combined to help dust removal.

[0033] Specifically, the above step 302 may further include the following steps 302a1 and 302a2: Step 302a1, controlling the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and setting the diversion mode of the diverter to multi-way diversion.

[0034] Step 302a2: When the temperature difference between the condenser outlet temperature and the exhaust temperature reaches a second preset threshold, the fan on the outdoor unit is controlled to rotate in the reverse direction at the maximum speed, and the diversion mode of the diverter is adjusted to single-way diversion.

[0035] Before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, the fan on the outdoor unit is in a non-operating state.

[0036] For example, in the embodiments of the present application, Figure 4 As shown, the dust on the surface of the outdoor heat exchanger is mainly dried to clean the dust and debris on the outdoor radiator, and because the multi-way diversion has a better heating effect, in the early drying process, the diverter adopts a multi-way diversion method for diversion.

[0037] For example, Figure 4 As shown, during drying, in order to quickly heat up the outdoor heat exchanger, there is no need to turn on the fan of the outdoor unit (or the speed is extremely low). When the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches the set value (that is, the second preset threshold value mentioned above), the fan of the outdoor unit can be controlled to rotate in the reverse direction at the maximum speed, and the diversion mode of the diverter can be adjusted from multi-way diversion to single-way diversion.

[0038] Specifically, after starting the outdoor fan, the above step 302 may further include the following steps 302b1 and 302b2: Step 302b1: after the fan of the outdoor unit rotates in the reverse direction at the maximum speed, determine whether the outlet temperature of the condenser reaches the first preset threshold.

[0039] Step 302b2: When the outlet temperature of the condenser reaches the first preset threshold, determine that the current round of heating and dust removal operation is completed.

[0040] For example, Figure 4 As shown, after controlling the rotation of the outdoor unit fan, it is also necessary to detect the outlet temperature of the condenser in real time, and when the outlet temperature of the condenser reaches a preset value (i.e., the first preset threshold value), it is determined that the current round of heating and dust removal operation is completed. At this time, it is determined whether the preset number of heating and dust removal operations has been performed. If the preset number of heating and dust removal operations has not been performed, it is necessary to continue to perform the next round of heating and dust removal operations.

[0041] It should be noted that, before the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually increases; after the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually decreases.

[0042] Specifically, after controlling the outdoor unit fan to rotate in the reverse direction at the maximum speed, the above step 302 may further include the following step 302c: Step 302c: after executing the preset number of heating and dust removal operations, control the air conditioner to return to the operating state before receiving the reverse dust removal instruction.

[0043] For example, Figure 4 As shown, after the outdoor unit fan is controlled to reverse at the maximum speed, the outlet temperature of the condenser can be used to determine whether the dust removal operation is completed. That is, when the outlet temperature of the condenser reaches the set value (i.e., the first preset threshold value) and the heating dust removal operation is performed for a preset number of times, it can be determined that the dust removal operation is completed, and at this time, the normal operation of the air conditioner can be restored.

[0044] It can be understood that in the embodiment of the present application, the heating rate of the outdoor heat exchanger is increased by adjusting the diversion method, thereby increasing the drying rate of dust on the surface of the outdoor heat exchanger, thereby improving the dust removal efficiency and reducing energy consumption.

[0045] The fan reverse dust removal operation control method based on variable diversion provided in the embodiment of the present application first receives a reverse dust removal instruction; then, executes the heating dust removal operation for a preset number of times in a loop, and the temperature of the condenser outlet reaches a first preset threshold value each time the operation is executed; wherein the heating dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner, and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit. In this way, the outdoor unit heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience.

[0046] It should be noted that the fan reversal operation control method based on variable diversion provided in the embodiment of the present application can be executed by a fan reversal operation control device based on variable diversion, or a control module in the fan reversal operation control device based on variable diversion for executing the fan reversal operation control method based on variable diversion. In the embodiment of the present application, the fan reversal operation control device based on variable diversion executing the fan reversal operation control method based on variable diversion is taken as an example to illustrate the fan reversal operation control device based on variable diversion provided in the embodiment of the present application.

[0047] It should be noted that, in the embodiments of the present application, the fan reverse operation control method based on variable split 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 fan reverse operation control method based on variable split 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.

[0048] The fan reversal operation control device based on variable diversion provided in the present application is described below, and the fan reversal operation control method based on variable diversion described below and above can be referenced to each other.

[0049] Figure 5 A schematic diagram of the structure of a fan reverse operation control device based on variable split flow provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, specifically including: The instruction receiving module 501 is used to receive the reverse dust removal instruction; the control module 502 is used to cyclically execute the heating and dust removal operation for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold value each time the operation is executed; wherein the heating and dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

[0050] Optionally, the control module 502 is specifically used to control the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and set the diversion mode of the diverter to multi-way diversion; the control module 502 is also specifically used to control the fan on the outdoor unit to rotate in the opposite direction at the maximum speed when the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, and adjust the diversion mode of the diverter to single-way diversion; wherein, before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches the second preset threshold, the fan on the outdoor unit is in a non-operating state.

[0051] Optionally, the control module 502 is specifically used to determine whether the outlet temperature of the condenser reaches the first preset threshold after the fan of the outdoor unit rotates in the reverse direction at the maximum speed; the control module 502 is also specifically used to determine that the current round of heating and dust removal operation is completed when the outlet temperature of the condenser reaches the first preset threshold.

[0052] Optionally, the control module 502 is specifically configured to control the air conditioner to return to the operating state before receiving the reverse dust removal instruction after executing the preset number of heating and dust removal operations.

[0053] Optionally, before the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually increases; after the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually decreases.

[0054] The fan reverse dust removal operation control device based on variable diversion provided by the present application first receives a reverse dust removal instruction; then, executes the heating dust removal operation for a preset number of times in a loop, and the temperature of the condenser outlet reaches a first preset threshold value each time the operation is executed; wherein the heating dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner, and the diversion modes of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit. In this way, the outdoor unit heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience.

[0055] Figure 6 The physical structure diagram of an electronic device is shown as an example. The electronic device may be the above-mentioned air conditioner. Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the fan reverse dust removal operation control method based on variable diversion, the method comprising: first, receiving the reverse dust removal instruction; then, cyclically executing the heating dust removal operation for a preset number of times, and the temperature of the condenser outlet reaches the first preset threshold each time the operation is executed; wherein the heating dust removal operation comprises: executing the outdoor heat exchanger heating control strategy, and using different diversion modes of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is set on the air conditioner and the diversion mode of the diverter includes: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit. In this way, the outdoor heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capabilities of the air conditioner, and improve the user experience.

[0056] In addition, the logic instructions in the above-mentioned memory 630 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.

[0057] 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 fan reverse dust removal operation control method based on variable diversion provided by the above methods, the method includes: first, receiving a reverse dust removal instruction; then, cyclically executing a preset number of heating dust removal operations, each time the temperature of the condenser outlet reaches a first preset threshold; wherein the heating dust removal operation includes: executing an outdoor heat exchanger heating control strategy, and using different diversion modes of a diverter to remove dust from the outdoor unit of the air conditioner; the diverter is set on the air conditioner and the diversion mode of the diverter includes: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit. In this way, the outdoor unit heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience.

[0058] On the other hand, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to execute the above-mentioned variable diversion-based fan reverse dust removal operation control method, the method comprising: first, receiving a reverse dust removal instruction; then, cyclically executing a preset number of heating dust removal operations, and each time the temperature of the condenser outlet reaches a first preset threshold; wherein the heating dust removal operation comprises: executing an outdoor heat exchanger heating control strategy, and using different diversion modes of a diverter to remove dust from the outdoor unit of the air conditioner; the diverter is provided on the air conditioner, and the diversion mode of the diverter includes: single-way diversion and multi-way diversion; one end of the diverter is connected to a throttling unit, and the other end is connected to a heat exchanger on the outdoor unit. In this way, the outdoor unit heat exchanger can be quickly dusted to improve the heat exchange efficiency of the outdoor heat exchanger, restore the cooling and heating capacity of the air conditioner, and improve the user experience.

[0059] 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.

[0060] 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.

[0061] 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 fan reverse operation control method based on variable split flow, characterized in that: Applied to an air conditioner, the method comprises: Receive reverse dust removal instruction; cyclically executing the heating and dust removal operation for a preset number of times, wherein the temperature at the condenser outlet reaches a first preset threshold value each time the operation is executed; Among them, the heating and dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion methods of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is set on the air conditioner and the diversion methods of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

2. The fan reverse rotation and de-energizing operation control method based on variable split according to claim 1 is characterized in that: The heating and dust removal operation is cyclically performed for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is performed, including: Controlling the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and setting the diversion mode of the diverter to multi-way diversion; When the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, controlling the fan on the outdoor unit to rotate in the reverse direction at a maximum speed, and adjusting the flow splitting mode of the splitter to single-way flow splitting; Among them, the outdoor heat exchanger heating control strategy is used to control the temperature rise of the outdoor heat exchanger; before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, the fan on the outdoor unit is in a non-operating state.

3. The fan reverse rotation and de-energizing operation control method based on variable split according to claim 2 is characterized in that: The heating and dust removal operation is cyclically performed for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is performed, including: After the fan of the outdoor unit rotates in the reverse direction at the maximum speed, determining whether the outlet temperature of the condenser reaches the first preset threshold; When the outlet temperature of the condenser reaches the first preset threshold, it is determined that the current round of heating and dust removal operation is completed.

4. The fan reverse rotation and de-energizing operation control method based on variable split according to claims 1 to 3, characterized in that: The heating and dust removal operation is cyclically performed for a preset number of times, and the temperature of the condenser outlet reaches a first preset threshold each time the operation is performed, including: After performing the heating and dust removal operations for the preset number of times, the air conditioner is controlled to return to the operating state before receiving the reverse dust removal instruction.

5. The fan reverse rotation and de-energizing operation control method based on variable split according to claim 3 is characterized in that: Before the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually increases; after the fan of the outdoor unit rotates in the reverse direction, the outlet temperature of the condenser gradually decreases.

6. A fan reverse operation control device based on variable split flow, characterized in that: The device comprises: An instruction receiving module, used for receiving a reverse dust removal instruction; A control module, used for cyclically executing the heating and dust removal operation for a preset number of times, wherein the temperature at the condenser outlet reaches a first preset threshold value each time the operation is executed; Among them, the heating and dust removal operation includes: executing the outdoor heat exchanger heating control strategy, and using different diversion methods of the diverter to remove dust from the outdoor unit of the air conditioner; the diverter is set on the air conditioner and the diversion methods of the diverter include: single-way diversion and multi-way diversion; one end of the diverter is connected to the throttling unit, and the other end is connected to the heat exchanger on the outdoor unit.

7. The fan reverse rotation and de-energizing operation control device based on variable split according to claim 6, characterized in that: The control module is specifically used to control the operation of the air conditioner according to a preset outdoor heat exchanger heating control strategy, and set the diversion mode of the diverter to multi-way diversion; The control module is further configured to control the fan on the outdoor unit to rotate in the reverse direction at a maximum speed and adjust the flow splitting mode of the splitter to single-way flow splitting when the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold; Before the temperature difference between the temperature at the condenser outlet and the exhaust temperature reaches a second preset threshold, the fan on the outdoor unit is in a non-operating state.

8. The fan reverse rotation and de-energizing operation control device based on variable split according to claim 7, characterized in that: The control module is specifically configured to determine whether the outlet temperature of the condenser reaches the first preset threshold value after the fan of the outdoor unit rotates in the reverse direction at the maximum speed; The control module is further specifically configured to determine that the current round of heating and dust removal operation is completed when the outlet temperature of the condenser reaches the first preset 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 fan reverse operation control method based on variable split 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 fan reverse operation control method based on variable split as claimed in any one of claims 1 to 5 are implemented.

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