Methods and apparatus for cleaning air conditioner filters; air conditioners

Abstract

This application relates to the field of smart home appliance technology, and discloses a method for cleaning air conditioner filters. The method includes: controlling entry into a cleaning mode, wherein the cleaning mode includes a cleaning process of sequentially frosting and defrosting the filter; and controlling exit from the cleaning mode after cleaning is completed. The method for cleaning air conditioner filters provided in this disclosure focuses on the filter as the primary cleaning object, unlike mechanical cleaning methods such as using brushes or rollers. In this embodiment, by allowing refrigerant to flow through refrigerant pipes laid on the filter or by having the filter adhere to the indoor heat exchanger, the filter can undergo a cleaning process including frosting and defrosting, achieving a better cleaning effect and effectively improving the user experience of the air conditioner. This application also discloses a device and an air conditioner for cleaning air conditioner filters.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method, apparatus, and air conditioner for cleaning air conditioner filters. Background Technology

[0002] As people's living standards improve, more and more families are installing air conditioners in their homes. Air conditioners can expel heat from the indoor environment to the outdoor environment during hot summer weather and guide heat from the outdoor environment to the indoor environment during cold winter weather, thus meeting users' indoor temperature needs under different weather and climate conditions. During the long-term operation of air conditioners, because indoor air circulates into the indoor unit for heat exchange, dust, oil, and other dirt accumulates daily. This greatly affects the cleanliness of the indoor unit, especially the indoor heat exchanger and filter, which are located in the airflow path and therefore accumulate the most dirt. Dirt on the indoor heat exchanger and filter can lead to reduced heat exchange efficiency with the indoor environment and reduced air intake, affecting the actual working performance of the air conditioner.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] Many air conditioner models in related technologies are equipped with cleaning functions or devices, but most of them focus on cleaning the indoor heat exchanger, neglecting to clean the equally dirty filter. A few designs that do clean the filter mainly use brushes, rollers, etc. to clean it mechanically, which is complex and easily limited by the internal space of the indoor unit, so the actual use effect is not good. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a method, apparatus, and air conditioner for cleaning air conditioner filters, thereby addressing the technical problem of poor performance of filter cleaning methods in related technologies.

[0007] In some embodiments, the method includes:

[0008] The system controls entry into cleaning mode, which includes a cleaning process that involves the filter undergoing a combination of defrosting and refrostting.

[0009] After cleaning is complete, exit the cleaning mode.

[0010] In some embodiments, the device includes:

[0011] The cleaning entry module is configured to control the entry into the cleaning mode, which includes a cleaning process that causes the filter to successively frost and defrost.

[0012] The cleaning exit module is configured to control the exit from the cleaning mode after cleaning is completed.

[0013] In some other embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to perform the above-described method for cleaning an air conditioning filter when the program instructions are executed.

[0014] In some embodiments, the air conditioner includes the means for cleaning the air conditioner filter as described in any of the above embodiments.

[0015] The method, apparatus, and air conditioner for cleaning air conditioner filters provided in this disclosure can achieve the following technical effects:

[0016] The method for cleaning air conditioner filters provided in this embodiment focuses on the filter as the primary object of cleaning. Unlike mechanical cleaning methods that use brushes or rollers, this method allows the filter to undergo a cleaning process that includes frost formation and defrosting by allowing refrigerant to flow through refrigerant pipes laid on the filter or by having the filter adhere to the indoor heat exchanger. This achieves a better cleaning effect and effectively improves the user experience of the air conditioner.

[0017] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0019] Figure 1 This is a schematic diagram of the structure of the filter screen provided in the embodiments of this disclosure;

[0020] Figure 2 This is a cross-sectional view of an air conditioner according to another embodiment of the present disclosure, wherein the filter is in the initial position;

[0021] Figure 3 This is a cross-sectional view of an air conditioner according to another embodiment of the present disclosure, wherein the filter is in the cleaning position;

[0022] Figure 4This is a schematic diagram of the structure of a filter assembly provided in another embodiment of this disclosure;

[0023] Figure 5 This is a schematic flowchart of a method for cleaning an air conditioner filter provided in an embodiment of this disclosure;

[0024] Figure 6 This is a schematic flowchart of a method for cleaning an air conditioner filter according to another embodiment of this disclosure;

[0025] Figure 7 This is a schematic flowchart of a method for cleaning an air conditioner filter according to another embodiment of this disclosure;

[0026] Figure 8 This is a schematic flowchart of an apparatus for cleaning air conditioner filters provided in an embodiment of the present disclosure;

[0027] Figure 9 This is a schematic flowchart of another embodiment of the present disclosure, providing an apparatus for cleaning air conditioning filters. Detailed Implementation

[0028] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0029] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0030] Unless otherwise stated, the term "multiple" means two or more.

[0031] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0032] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0033] Figure 1This is a schematic diagram of the structure of the filter screen provided in the embodiments of this disclosure.

[0034] Combination Figure 1 As shown, the air conditioner's filter 203 is equipped with a refrigerant pipe 70. The refrigerant pipe 70 serves as the path for refrigerant flow. As the refrigerant flows through the refrigerant pipe 70, it exchanges heat with the filter 203, allowing the temperature of the filter 203 to change with the refrigerant temperature. Thus, when a lower-temperature refrigerant flows through the refrigerant pipe 70, the filter 203's temperature decreases due to the low-temperature refrigerant. When the temperature drops below the condensation temperature, moisture in the air flowing through the filter 203 gradually condenses into frost on the filter 203, achieving frost formation. Conversely, when a higher-temperature refrigerant flows through the refrigerant pipe 70, the filter 203's temperature rises due to the high-temperature refrigerant. If frost has condensed on the filter 203, the temperature rises above the defrosting temperature, causing the frost to melt, thus defrosting the filter 203.

[0035] Optionally, the filter screen refrigerant pipe 70 is a complete refrigerant pipe, combined with Figure 1 As shown, the pipeline is approximately composed of multiple S-shaped pipe segments connected one after another. The extension range of each S-shaped pipe segment is from one side of the filter screen 203 to the opposite side. Its extension direction can be longitudinal or transverse of the filter screen 203, so that the heat exchange area of ​​the filter screen refrigerant pipe 70 can cover most of the area of ​​the filter screen 203. In this way, the temperature change of the filter screen 203 as a whole can be more uniform during the heat exchange process, and the various areas of the filter screen 203 can be frosted or defrosted synchronously to ensure the cleaning effect of the filter screen 203.

[0036] Alternatively, the filter refrigerant pipe 70 is composed of multiple parallel refrigerant pipe sections arranged side by side and connected in parallel. The extension range of each parallel pipe section is also from one side of the filter 203 to the other opposite side. This arrangement can also achieve the purpose of making the heat exchange area of ​​the filter refrigerant pipe 70 cover most of the area of ​​the filter 203.

[0037] It should be understood that the above examples mainly illustrate two optional structural forms of the filter refrigerant pipe 70. Those skilled in the art can also make adaptive structural adjustments based on the structure of the filter 203 itself, and the present invention is not limited thereto.

[0038] In some embodiments, the filter screen refrigerant pipe 70 and the filter screen 203 are an integral structure, which can ensure a stable connection between the filter screen refrigerant pipe 70 and the filter screen 203; optionally, the filter screen 203 and the filter screen refrigerant pipe 70 are made of metals such as aluminum and iron and their alloys, and the two are welded to form an integral structure; or, the filter screen 203 and the filter screen refrigerant pipe 70 are made by integral casting or other processes.

[0039] In some optional embodiments, the filter refrigerant pipe 70 is connected in parallel with the indoor heat exchanger; here, in addition to the heat exchange pipe section arranged on the filter 203, the filter refrigerant pipe 70 also has a first interface connected in parallel to the inlet end of the indoor heat exchanger and a second interface connected in parallel to the outlet end of the indoor heat exchanger, wherein the inlet end and outlet end of the indoor heat exchanger are defined according to the refrigerant flow direction in the cooling mode.

[0040] Optionally, a control valve is provided on the filter screen refrigerant pipe 70. This control valve can be used to control the on / off state of the filter screen refrigerant pipe 70. For example, when the filter screen 203 is being cleaned by defrosting, the control valve can be opened to make the filter screen refrigerant pipe 70 in a conductive state; when the filter screen 203 is not being cleaned by defrosting, the control valve can be closed to make the filter screen refrigerant pipe 70 in a blocked state. Alternatively, an additional control valve may be provided at the inlet and / or outlet of the indoor heat exchanger. This control valve can be used to control the on / off state of the internal flow path of the indoor heat exchanger. Since the temperature of the refrigerant entering the filter screen 203 through the refrigerant pipe 70 during defrosting and condensing is generally different from the temperature of the refrigerant used for conventional cooling / heating in the indoor heat exchanger, the control valve can be closed when the filter screen 203 needs to be cleaned separately during defrosting and condensing. This is to avoid the temperature of the refrigerant used to clean the filter screen 203 causing significant changes in the temperature of the indoor heat exchanger, which in turn leads to significant differences in the indoor ambient temperature.

[0041] Optionally, the first interface of the filter refrigerant pipe 70 is connected in parallel to the pipe section between the air conditioner's throttling device and the inlet end of the indoor heat exchanger. Therefore, when the filter 203 is frosted, the temperature of the refrigerant flowing into the filter refrigerant pipe 70 can be achieved by adjusting the throttling opening of the air conditioner's original throttling device. Alternatively, the filter refrigerant pipe 70 is equipped with a separate throttling device. Therefore, when the filter 203 is frosted, the temperature of the refrigerant flowing into the filter refrigerant pipe 70 can be achieved by adjusting the throttling opening of the newly added throttling device.

[0042] Figure 2 This is a cross-sectional view of an air conditioner according to another embodiment of the present disclosure, wherein the filter is in the initial position; Figure 3This is a cross-sectional view of an air conditioner according to another embodiment of the present disclosure, wherein the filter is in the cleaning position; Figure 4 This is a schematic diagram of the structure of a filter assembly provided in another embodiment of this disclosure.

[0043] Combination Figure 2 and Figure 3 As shown, this embodiment of the disclosure provides a structure for self-cleaning of an air conditioner filter. The air conditioner 100 can be a wall-mounted air conditioner 100 or a floor-standing air conditioner 100. The following description uses a wall-mounted air conditioner 100 as an example.

[0044] Air conditioner 100 includes an indoor heat exchanger 30, a fan wheel 40 or a blower, a housing 10, and a structure for self-cleaning the air conditioner filter. The self-cleaning structure includes a filter assembly 20, which is disposed on one side of the indoor heat exchanger 30, for example, combined with... Figure 2 and Figure 3 As shown, the filter assembly 20 is positioned above the indoor heat exchanger 30. The housing 10 defines an installation space 101, within which the indoor heat exchanger 30 and the filter assembly 20 are housed. The housing 10 has an air outlet communicating with the installation space 101. Under the action of the impeller 40 or a fan, air passes sequentially through the filter assembly 20 and the indoor heat exchanger 30 before being blown out through the air outlet. A guide vane 50 is provided at the air outlet to adjust the airflow direction.

[0045] The structure for self-cleaning air conditioning filters includes a filter assembly 20 and a drive unit.

[0046] Among them, combined Figure 4 As shown, the filter assembly 20 includes a filter 203 for filtering the air flowing through it.

[0047] A drive unit is disposed on the filter assembly 20 and the indoor heat exchanger 30 of the air conditioner 100. The drive unit is configured to drive the filter assembly 20 to a clean position that is in contact with the indoor heat exchanger 30 of the air conditioner 100. Figure 3 The middle filter assembly 20 is in the clean position.

[0048] Using the structure for self-cleaning air conditioning filters provided in this embodiment, the driving device can drive the filter assembly 20 to move relative to the indoor heat exchanger 30, thereby changing the position of the filter assembly 20 relative to the indoor heat exchanger 30, so that the filter assembly 20 moves to a clean position that is in contact with the indoor heat exchanger 30.

[0049] In the cleaning position, under the action of the drive device, the filter screen assembly 20 is tightly attached to the surface of the indoor heat exchanger 30. The defrosting of the indoor heat exchanger 30 can be used to achieve the defrosting of the filter screen 203. Thus, the filter screen 203 can be cleaned at the same time as the indoor heat exchanger 30. This simplifies the cleaning method of the filter screen 203, improves the cleaning efficiency of the filter screen 203 and the indoor heat exchanger 30, reduces the user's actions, and avoids the drawback of having to clean the filter screen 203 and the indoor heat exchanger 30 separately.

[0050] Optionally, the driving device includes a first magnetic attracting element and a second magnetic attracting element 202.

[0051] The first magnetic attractor is disposed on the indoor heat exchanger 30, and the second magnetic attractor 202 is disposed on the filter assembly 20 and is able to attract the first magnetic attractor so that the filter assembly 20 moves to the cleaning position.

[0052] A magnetic attraction exists between the first magnetic attractor and the second magnetic attractor 202, thereby driving the filter assembly 20 to move towards the indoor heat exchanger 30, thus moving it to a cleaning position. Optionally, the first magnetic attractor and the second magnetic attractor 202 are arranged correspondingly. Taking the filter assembly 20 being located above the indoor heat exchanger 30 as an example, the second magnetic attractor 202 can be positioned directly above the first magnetic attractor, thereby driving the filter assembly 20 to move vertically relative to the indoor heat exchanger 30.

[0053] The drive device adopts a first magnetic attractor and a second magnetic attractor 202, which has a simple structure and low cost.

[0054] Optionally, one of the first magnetic attractor and the second magnetic attractor 202 is an electromagnet, and the other is at least one of an electromagnet, a permanent magnet, or a ferromagnetic metal. Ferromagnetic metal refers to a metal that can attract an electromagnet, such as iron, cobalt, or nickel. When the first magnetic attractor or the second magnetic attractor 202 is a ferromagnetic metal, the ferromagnetic metal can be disposed on the indoor heat exchanger 30 or the filter assembly 20, or the material of the indoor heat exchanger 30 or the filter assembly 20 itself can be a ferromagnetic metal.

[0055] Optionally, there are multiple first magnetic attracting elements and multiple second magnetic attracting elements 202. The first magnetic attracting elements are evenly distributed on the surface of the indoor heat exchanger 30 facing the filter assembly 20, and the second magnetic attracting elements 202 are evenly distributed on the surface of the filter assembly 20 away from the indoor heat exchanger 30, for example, in combination. Figure 4As shown, the second magnetic attractor 202 is evenly distributed on the upper surface of the filter assembly 20, and the first magnetic attractor is evenly distributed on the upper surface of the indoor heat exchanger 30, so as not to affect the contact between the filter assembly 20 and the indoor heat exchanger 30 at the cleaning position.

[0056] When the electromagnet is energized, the first magnetic attractor and the second magnetic attractor 202 attract each other, thereby causing the filter assembly 20 to move to a clean position that is in contact with the indoor heat exchanger 30, and to be kept in the clean position by the magnetic attraction between the first magnetic attractor and the second magnetic attractor 202.

[0057] Taking the second magnetic attractor 202 as an electromagnet and the first magnetic attractor as a permanent magnet or ferromagnetic metal as an example, when the filter assembly 20 needs to move to the cleaning position, the electromagnet is energized, and the electromagnet attracts the first magnetic attractor, thereby driving the filter assembly 20 to move relative to the indoor heat exchanger 30 to the cleaning position.

[0058] Taking the example where both the first magnetic attractor and the second magnetic attractor 202 are electromagnets, when the filter assembly 20 needs to move to the cleaning position, the electromagnets controlling the first magnetic attractor and the second magnetic attractor 202 are both energized, and the two electromagnets attract each other, thereby driving the filter assembly 20 to move relative to the indoor heat exchanger 30 to the cleaning position.

[0059] Optionally, combined Figure 2 and Figure 3 As shown, the structure for self-cleaning of the air conditioner filter also includes a reset device 60.

[0060] The reset device 60 includes an elastic element that deforms in the clean position to drive the filter assembly 20 back to its initial position separated from the indoor heat exchanger 30.

[0061] When the filter assembly 20 moves to the clean position, the elastic element deforms. Thus, when the electromagnet is de-energized, the filter assembly 20 moves relative to the indoor heat exchanger 30 under the restoring force of the elastic element and moves to the initial position.

[0062] When the filter 203 needs cleaning, the drive device moves the filter assembly 20 to the cleaning position, where the filter 203 is cleaned. After cleaning, the drive device moves the filter assembly 20 back to its initial position, where it separates from the indoor heat exchanger 30. In other words, the filter assembly 20 and the indoor heat exchanger 30 do not contact each other in the initial position. This reduces air intake resistance during normal operation of the air conditioner 100 and prevents increased air resistance caused by the filter 203 adhering to the surface of the indoor heat exchanger 30 during normal cooling and heating.

[0063] Optionally, combined Figure 2 As shown, the reset device 60 abuts against the filter assembly 20 in the initial position to limit the filter assembly 20 to the initial position.

[0064] In the initial position, the reset device 60 abuts against the filter assembly 20, thereby supporting the filter assembly 20 and fixing it in the initial position to prevent the filter assembly 20 from moving relative to the indoor heat exchanger 30.

[0065] After the electromagnet is de-energized, the reset device 60 drives the filter assembly 20 to reset from the clean position to the initial position. The reset device 60 can also keep the filter assembly 20 in the initial position. In other words, the reset device 60 has multiple functions, thereby reducing the number of parts in the air conditioner 100 and improving the structural compactness of the air conditioner 100.

[0066] Optionally, the reset device 60 further includes a rotating shaft 601 and a support member 602. The support member 602 is sleeved on the rotating shaft 601 and is rotatable relative to the rotating shaft 601. An elastic element is disposed between the rotating shaft 601 and the support member 602, and in the initial position, the support member 602 abuts against the filter assembly 20.

[0067] In the initial position, the support member 602 abuts against the filter assembly 20, thereby supporting the filter assembly 20 and ensuring that it remains in the initial position when the electromagnet is de-energized. When the electromagnet is energized, the filter assembly 20 moves to the clean position, and the filter assembly 20 causes the support member 602 to rotate relative to the rotation axis 601. The elastic element is compressed, and the filter assembly 20 remains in the clean position due to the attraction between the first magnetic attractor and the second magnetic attractor 202.

[0068] The elastic element can be, but is not limited to, a torsion spring or a spring.

[0069] Optionally, the support member 602 includes a first end 6021 and a second end 6022. The first end 6021 is sleeved on the rotating shaft 601 and can rotate relative to the rotating shaft 601. In the initial position, the second end 6022 abuts against the filter assembly 20, thus connecting the two ends. Figure 2 As shown, the size of the second end 6022 is smaller than the size of the first end 6021, and the second end 6022 is triangular pyramidal.

[0070] Multiple reset devices 60 are provided on the housing 10. For example, the rotating shaft 601 is provided on the housing 10, and the multiple reset devices 60 are located at opposite ends of the filter assembly 20. The reset devices 60 need to be positioned to avoid the filter assembly 20 so that the filter assembly 20 can completely adhere to the indoor heat exchanger 30 in the cleaning position. In other words, the reset devices 60 do not affect the contact area of ​​the filter assembly 20 on the indoor heat exchanger 30, thus not affecting the cleaning of the filter assembly 20. Figure 2 As shown, there are two reset devices 60, located at the front and rear of the indoor heat exchanger 30, respectively. The presence of multiple reset devices 60 improves the smoothness of movement of the filter assembly 20 from the clean position to the initial position.

[0071] When the air conditioner 100 is in normal heating or cooling mode, the indoor heat exchanger 30 is separated from the filter 203, which does not affect the air resistance. When the filter 203 is being cleaned, the electromagnet is energized, overcoming the elastic force of the elastic element, and the filter assembly 20 is brought into contact with the indoor heat exchanger 30. Finally, through the condensation and defrosting of the indoor heat exchanger 30, the dust on the surface of the filter 203 is washed and sterilized. The defrosted water melts and flows into the drip tray and outwards, requiring no user intervention. When the filter assembly 20 needs to be reset to its initial position, the electromagnet is de-energized and loses its magnetism. The support 602 lifts the filter 203 and separates it from the surface of the indoor heat exchanger 30, ensuring airflow. When the filter 203 is being cleaned, the electromagnet is energized, and the magnetic force between the first magnetic attractor and the second magnetic attractor 202 overcomes the elastic force of the elastic element, attracting the filter assembly 20 into contact with the indoor heat exchanger 30, completing the subsequent cleaning process.

[0072] Optionally, the filter assembly 20 also includes a filter frame 201, with a filter 203 disposed on the filter frame 201, and the filter frame 201 having reinforcing ribs on the side opposite to the indoor heat exchanger 30.

[0073] The filter frame 201 supports the filter 203, thereby enhancing the strength of the filter 203, so that the filter assembly 20 can fit tightly against the surface of the indoor heat exchanger 30 in the cleaning position. Optionally, the filter 203 is arranged inside the filter frame 201, and the filter 203 is arranged flat and straight on the filter frame 201.

[0074] Optionally, the filter frame 201 is a rigid frame, and the filter 203 is a rigid filter 203, thereby further enhancing the strength of the filter assembly 20 and allowing the filter assembly 20 to fit tightly against the surface of the indoor heat exchanger 30 in the cleaning position. For example, the filter frame 201 can be a metal frame, and the filter 203 can be a metal filter 203. It is understood that the filter frame 201 can also be a plastic frame, and the filter 203 can be a plastic filter 203.

[0075] Optionally, the shape of the filter assembly 20 is adapted to the shape of the windward side of the indoor heat exchanger 30 so that the filter assembly 20 can be placed against the windward side of the indoor heat exchanger 30 in a clean position.

[0076] The shape of the filter assembly 20 perfectly matches the shape of the windward side of the indoor heat exchanger 30. Therefore, in the cleaning position, the filter assembly 20 can fit tightly against the windward side of the indoor heat exchanger 30 at all points. When the indoor heat exchanger 30 is frosted, it is easier for a frost layer to form on the filter 203, enhancing the cleaning effect on the filter 203. Here, the windward side of the indoor heat exchanger 30 refers to the surface of the indoor heat exchanger 30 facing the filter assembly 20. Air reaches the windward side of the indoor heat exchanger 30 after passing through the filter 203. Figure 2 and Figure 3 In the middle, the filter assembly 20 is located above the indoor heat exchanger 30. The upper surface of the indoor heat exchanger 30 is the windward side. In the clean position, the filter assembly 20 is attached to the upper surface of the indoor heat exchanger 30. The indoor heat exchanger 30 has a three-plane sheet metal connection.

[0077] The reinforcing ribs can enhance the strength of the filter assembly 20 and support its shape, so that in the initial position, the filter assembly 20 can maintain its shape and be separated from the indoor heat exchanger 30, preventing the filter 203 from sticking to the indoor heat exchanger 30 and affecting the air resistance. In the cleaning position, the filter assembly 20 can stick tightly to the surface of the indoor heat exchanger 30, enhancing the cleaning effect on the filter 203.

[0078] The reinforcing ribs are located on the side of the filter assembly 20 away from the indoor heat exchanger 30, so as not to affect the contact between the filter assembly 20 and the indoor heat exchanger 30 in the cleaning position. Multiple reinforcing ribs can be provided, and they are evenly distributed on the filter assembly 20. Optionally, multiple reinforcing ribs are evenly distributed on the filter frame 201, and the second magnetic attractor 202 is provided on the reinforcing ribs.

[0079] In one specific embodiment, the filter frame 201 is a rigid frame with the same shape as the windward side of the indoor heat exchanger 30. The filter 203 is a flat metal filter. Electromagnets are arranged on the reinforcing ribs of the filter frame 201. Iron structures are arranged at corresponding positions on the indoor heat exchanger 30. The iron structures constitute the first magnetic attraction element so that the filter assembly 20 can be accurately adsorbed onto the surface of the indoor heat exchanger 30 during self-cleaning and match the indoor heat exchanger 30, so that the surface of the metal filter 203 is tightly attached to the surface of the indoor heat exchanger 30 to achieve the best condensation effect. Reset devices 60 are arranged at the front and rear of the rigid filter frame 201. By energizing the electromagnet, it becomes magnetic and attracts the filter screen 203 to the iron structure on the surface of the indoor heat exchanger 30, ensuring that the rigid filter screen 203 can perfectly match the indoor heat exchanger 30. This allows the frost layer to completely cover the filter screen 203 during cleaning, achieving a better cleaning effect. Reset devices 60 are arranged at both the front and rear of the rigid filter screen 203. During reset, the electromagnet is demagnetized, and the support member 602 supports the filter screen 203 and separates it from the surface of the indoor heat exchanger 30, ensuring the air intake volume. When cleaning is performed, the electromagnet is energized, and the magnetic force overcomes the elasticity of the elastic member, causing the filter screen 203 to be attracted to the indoor heat exchanger 30, completing the subsequent cleaning action.

[0080] This disclosure provides an air conditioner 100, including an indoor heat exchanger 30 and a structure for self-cleaning of the air conditioner filter as described in any of the above embodiments, wherein the filter assembly 20 is disposed on one side of the indoor heat exchanger 30.

[0081] The air conditioner 100 provided in this embodiment includes the structure for self-cleaning of the air conditioner filter in any of the above embodiments, and therefore has all the beneficial effects of the structure for self-cleaning of the air conditioner filter in any of the above embodiments, which will not be repeated here.

[0082] In summary, this application cleans the surface of filter screen 203 through a process of condensation and defrosting. This cleaning process is completed simultaneously with the cleaning of the indoor heat exchanger 30, making it simple and quick. The dust on the surface of filter screen 203 is cleaned through two processes: condensation and defrosting. The filter screen assembly 20 is tightly attached to the indoor heat exchanger 30 according to its outer surface shape, ensuring the spread of frost. Finally, through condensation and defrosting, the dust on the surface of filter screen 203 is rinsed and sterilized. The defrosted water melts and flows into the drip tray, flowing outdoors, requiring no user intervention. Furthermore, the drive device enables the filter screen assembly 20 to adhere to and reposition itself on the surface of the indoor heat exchanger 30, resulting in a simple structure and high reliability. The filter assembly 20 has a good shape to adapt to the indoor heat exchanger 30, is highly adaptable, and is easy for users to use. It can quickly clean the filter 203, with good cleaning effect and high reliability. Moreover, the structure for self-cleaning the air conditioner filter occupies little space, does not affect the air intake and exhaust volume of the air conditioner 100, does not increase the thickness of the whole unit, and will not affect the appearance. The filter assembly 20 is easy to assemble and disassemble.

[0083] Combination Figure 5 As shown, this disclosure provides a method for cleaning air conditioner filters. This method focuses on cleaning the filter itself, effectively removing dust, oil, and other dirt adhering to it, thereby improving the filter's cleanliness. The main steps of this method include:

[0084] S501, Control to enter cleaning mode, wherein the cleaning mode includes a cleaning process in which the filter screen is successively frosted and defrosted.

[0085] In some optional embodiments, the air conditioner remote control and control panel are equipped with a cleaning function option such as "filter cleaning". This option can be used to trigger the air conditioner cleaning method process in this embodiment. After the user selects the cleaning option, the air conditioner generates a relevant cleaning command and responds by executing the corresponding cleaning mode.

[0086] In some alternative embodiments, the air conditioner can also generate relevant cleaning instructions through detection triggering, timed triggering, etc. For example, the air conditioner is equipped with a wind speed / airflow detection device on the air outlet side of the filter. This detection device can be used to detect the air outlet wind speed or flow rate of the filter. When there is a lot of dirt on the filter, it is easy to clog the filter pores, causing the air outlet wind speed and airflow to decrease significantly compared to the clean state. When the detected decrease in air outlet wind speed or flow rate indicates that there is a lot of dirt on the air conditioner filter, the air conditioner generates a relevant cleaning instruction. Alternatively, the air conditioner has a timing module that can be used to count the cumulative running time of the air conditioner. Here, as the cumulative running time of the air conditioner increases, the dirt adhering to the filter also gradually increases. Therefore, it can be set that when the cumulative running time of the air conditioner exceeds a set time threshold, the air conditioner generates a relevant cleaning instruction. This set time threshold is used to characterize the time required for the amount of dirt accumulated on the filter to reach the level that needs to be cleaned.

[0087] In some alternative embodiments, the air conditioner can also be linked with the air conditioner's original cleaning function for the indoor heat exchanger. For example, after the user selects the original cleaning function, the cleaning process for the filter in this embodiment is executed simultaneously when the cleaning process defined by the original cleaning function is executed.

[0088] For example, if the original cleaning function of the air conditioner is a defrosting function, which includes two stages: introducing low-temperature refrigerant into the indoor heat exchanger for defrosting and introducing high-temperature refrigerant for defrosting, then while the air conditioner is performing the original cleaning function, the cleaning function in this embodiment can be controlled to be triggered to clean the filter at the same time.

[0089] In this embodiment, the cleaning mode includes a cleaning process that involves frosting and defrosting the filter screen sequentially. During frosting, the condensed water vapor mixes with dust and other dirt, causing the dust and dirt to freeze along with the frost during its formation. As water freezes, its volume changes, allowing the mixed dust and dirt to be peeled off the filter screen. During defrosting, the solid frost melts into liquid water, which gradually drips off the filter screen under gravity. This process washes away the peeled-off dust and dirt, reducing the amount of dirt on the filter screen and improving its cleanliness.

[0090] S502. After cleaning is complete, control the exit from cleaning mode.

[0091] In some optional embodiments, the air conditioner can determine whether cleaning is complete based on the running time of the cleaning mode. For example, if the running time of the cleaning mode is set to 30 minutes, the timing module will start timing when executing step S501. The air conditioner will control the cleaning process of condensing and defrosting the filter in sequence. If the condensing stage is 15 minutes and the defrosting stage is 15 minutes, then when the timing mode reaches 30 minutes, it can be determined that the condensing and defrosting of the filter has been completed, and the cleaning mode can be exited at this time.

[0092] In some alternative embodiments, the air conditioner can also determine whether cleaning is complete by means of parameter detection. For example, corresponding to the method of triggering the entry into cleaning mode based on the air outlet speed or flow rate of the filter in the previous embodiment, it can also be judged by detecting the change in the air outlet speed or flow rate of the filter during the operation of the cleaning mode. If the air outlet speed or flow rate of the filter is close to or reaches the air outlet speed or flow rate corresponding to the clean state, it can be determined that the defrosting and defrosting of the filter has been completed, and at this time the cleaning mode can be exited.

[0093] The method for cleaning air conditioner filters provided in this embodiment focuses on the filter as the primary object of cleaning. Unlike cleaning methods that use brushes or rollers to mechanically scrub the filter, this embodiment performs a cleaning process that includes frost formation and defrosting, achieving a better cleaning effect and effectively improving the user experience of the air conditioner.

[0094] The cleaning process of controlling the filter to condense and defrost in this application can be achieved through various air conditioning structures shown in the previous embodiments. The cleaning process of this application will be described below for different air conditioning structures.

[0095] Combination Figure 6 As shown, another embodiment of this disclosure provides a method for cleaning an air conditioner filter. Optionally, this cleaning method can be used in the aforementioned embodiment where a filter screen and refrigerant pipe are installed on the air conditioner filter. The main steps of this method include:

[0096] S601, Obtain cleaning instructions;

[0097] In this embodiment, the cleaning command can be generated by the user's manual input, or by detection triggering, timed triggering, or other methods; after the air conditioner receives the cleaning command, it executes the corresponding cleaning mode.

[0098] S602. During the defrosting stage, the refrigerant flow that meets the first defrosting temperature is controlled to pass through the filter refrigerant pipe.

[0099] Optionally, the range of the first frost temperature is: T1 凝霜 ≤0℃.

[0100] Here, when the air conditioner is in normal operating mode such as cooling / heating, the control valve on the refrigerant pipe of the filter is closed, and the refrigerant does not flow through the refrigerant pipe of the filter.

[0101] During the defrosting stage, the control valve on the refrigerant pipe of the filter is open, and at least part of the refrigerant in the air conditioning refrigerant circulation loop flows through the refrigerant pipe of the filter and exchanges heat with the filter. Here, by adjusting one or more parameters such as the compressor frequency, the throttling opening of the throttling device, and the fan speed, the refrigerant flowing into the refrigerant pipe of the filter can meet the requirements of the first defrosting temperature, thereby allowing the filter, which is affected by the refrigerant temperature, to also cool down to the first defrosting temperature, so as to meet the temperature conditions required for water vapor to condense into frost on the filter.

[0102] Here, the refrigerant flow direction in the refrigerant circulation loop during the condensation stage is the same as that in the cooling mode. At this time, the refrigerant flowing into the filter refrigerant pipe is the refrigerant that meets the first condensation temperature after being throttled by the throttling device.

[0103] Optionally, during the operation of the cleaning mode, the control valves at the inlet and / or outlet of the indoor heat exchanger are kept closed. Therefore, most of the refrigerant in the refrigerant circulation loop flows through the filter refrigerant pipe, so that the cooling / heating capacity of the refrigerant can be concentrated on the condensation / defrosting of the filter, ensuring the cleaning effect of the filter, and at the same time reducing the impact of the filter condensation and defrosting stages on the indoor temperature disturbance.

[0104] S603. Determine whether the frosting is complete. If yes, proceed to step S604. If no, return to step S602.

[0105] Optionally, the completion of frosting can be determined based on the running time of the frosting stage. In this embodiment, a preset running time for the frosting stage is provided. When entering the frosting stage, the running time of the frosting stage is started. If the timed duration is greater than or equal to the preset running time, it can be determined that the frosting is complete, and step S604 is executed. If the timed duration is less than the preset running time, the running state of the frosting stage remains unchanged.

[0106] S604. During the defrosting stage, the refrigerant flow that meets the first defrosting temperature is controlled to pass through the filter refrigerant pipe.

[0107] Optionally, the range of the first defrosting temperature is: T1 化霜 ≥40℃.

[0108] During the defrosting stage, the control valve on the refrigerant line of the filter screen remains open. Here, by adjusting one or more parameters such as the compressor frequency, the throttling opening of the throttling device, and the fan speed, the refrigerant flowing into the refrigerant line of the filter screen can meet the requirements of the first defrosting temperature. This allows the filter screen, which is affected by the refrigerant temperature, to also heat up to the first defrosting temperature, so as to meet the temperature conditions required for the frost to melt on the filter screen.

[0109] Here, the refrigerant flow direction in the refrigerant circulation loop during the defrosting stage is the same as that in the heating mode. At this time, the refrigerant flowing into the filter refrigerant pipe is the refrigerant that meets the first defrosting temperature and is discharged through the compressor exhaust port.

[0110] S605. Determine whether defrosting is complete. If yes, proceed to step S606; otherwise, return to step S604.

[0111] Optionally, the completion of defrosting can be determined based on the duration of the defrosting stage. In this embodiment, a preset duration of the defrosting stage is provided. When entering the defrosting stage, the duration of the defrosting stage is timed. If the timed duration is greater than or equal to the preset duration, the defrosting can be determined to be complete, and step S606 is executed. If the timed duration is less than the preset duration, the running state of the defrosting stage remains unchanged.

[0112] Optionally, in this embodiment, when step S605 determines that defrosting is complete, it indicates that the cleaning of the filter screen is complete, and at this time, the cleaning mode can be exited.

[0113] S606, Control and block the refrigerant pipe of the filter screen.

[0114] In this embodiment, after cleaning is completed, the control valve on the refrigerant pipe of the filter screen can be closed to block the flow path of the refrigerant pipe. Additionally, the control valves at the inlet and / or outlet of the indoor heat exchanger can be opened to restore the refrigerant flow path of the indoor heat exchanger to its open state.

[0115] In this embodiment, the cleaning mode involves controlling one or more cleaning parameters, including but not limited to: compressor frequency, fan speed, throttling device opening degree, and air guide vane angle, etc. By adjusting one or more cleaning parameters, the air conditioner's operating state can meet the state requirements of each stage of the cleaning process, such as the requirement for the first defrosting temperature and the amount of defrosting refrigerant during the defrosting stage; or the requirement for the first defrosting temperature and the amount of defrosting refrigerant during the defrosting stage.

[0116] In some optional embodiments, the cleaning parameters of the cleaning mode can be manually set by the user. Here, input devices such as the air conditioner remote control or control panel also have the option to set the cleaning parameters, and the user can manually set the cleaning parameters through these input devices.

[0117] In some alternative embodiments, the cleaning parameters of the cleaning mode are obtained based on the degree of dirtiness of the filter. Different degrees of dirtiness in the filter result in different cleaning intensities required to ensure effective cleaning, such as the total cleaning time, the temperature of frosting, the temperature of defrosting, etc. Generally, a higher cleaning intensity results in a better cleaning effect on the filter; therefore, a lower cleaning intensity can be selected when the filter is lightly dirty, and a higher cleaning intensity can be selected when the filter is heavily soiled. In this embodiment, the cleaning intensity can be adjusted by changing the cleaning parameters.

[0118] In some embodiments, the degree of dirtiness of the filter can be determined based on the indoor air quality; here, the air conditioner is equipped with an air quality detection device, which can be used to continuously detect the air quality of the environment in which the indoor unit is located; generally, the worse the ambient air quality, the more dust and other pollutants there are, and the more dirt will adhere to the filter when the air conditioner is running, and therefore the dirtiness of the filter will be more serious.

[0119] For example, the degree of dirtiness of the filter is divided into two levels: severe and light. The air conditioner is preset with a cumulative pollutant unit value corresponding to the operating time under different air quality detection devices. For instance, when the air quality is acceptable, the cumulative pollutant unit value for one hour of air conditioner operation is A; while when the air quality is unacceptable, the cumulative pollutant unit value for one hour of air conditioner operation is B (B > A). A one-week statistical period can be used. If the sum of the cumulative pollutant unit values ​​collected within a week is greater than the set cumulative threshold, the filter is determined to be severely dirty, requiring a higher cleaning intensity. Conversely, if the sum of the cumulative pollutant unit values ​​collected within a week is less than or equal to the set cumulative threshold, the filter is determined to be lightly dirty, requiring a lower cleaning intensity.

[0120] In some other embodiments, the degree of dirtiness of the filter can also be determined based on the change in the outlet air velocity or flow rate of the filter compared to the clean state; here, the greater the change in outlet air velocity or flow rate, the greater the impact of dirt on the outlet air, and therefore the more serious the degree of dirtiness of the filter.

[0121] For example, the degree of dirtiness of the filter screen is divided into two levels: severe and mild. The air velocity of the filter screen in a clean state is V1, and the air velocity detected in a certain test is V2. In this embodiment, the degree of dirtiness is judged based on the air velocity difference obtained from V1-V2. Specifically, when V1-V2≥△V, the degree of dirtiness of the filter screen is determined to be severe, and a higher level of cleanliness (mild) should be selected. When V1-V2<△V, the degree of dirtiness of the filter screen is determined to be mild, and a lower level of cleanliness (mild) should be selected.

[0122] In the above embodiments, the air conditioner has a preset correspondence between the degree of dirt on the filter and the cleaning parameters of the cleaning mode. After determining the degree of dirt on the filter, the corresponding cleaning parameters can be obtained according to the correspondence, and the operation of the cleaning mode can be controlled according to the cleaning parameters.

[0123] Combination Figure 7 As shown, another embodiment of this disclosure provides a method for cleaning an air conditioner filter. Optionally, this cleaning method can be used in the aforementioned embodiment of an air conditioner equipped with a filter assembly. The main steps of the method include:

[0124] S701, Obtain cleaning instructions;

[0125] In this embodiment, the implementation of step S701 refers to the corresponding part of the previous embodiment, and will not be repeated here;

[0126] S702, Control the filter to move to the cleaning position;

[0127] Here, the cleaning location includes the area where the filter screen and the indoor heat exchanger are in contact. Optionally, the area where the two are in contact is where the filter screen and the indoor heat exchanger are tightly fitted together; alternatively, the area where the filter screen and the indoor heat exchanger are in contact is where the gap between them is very small.

[0128] When the filter assembly is in its initial position, its primary function is to filter the air flowing before it passes through the indoor heat exchanger. At this initial position, the distance between the filter and the indoor heat exchanger is relatively large, and the filter is on the air inlet side. Therefore, the heat transferred between the indoor heat exchanger and the filter via convection is minimal, resulting in a small temperature fluctuation in the filter due to the influence of the indoor heat exchanger. However, when the filter assembly moves to the clean position, the filter is in close contact with the indoor heat exchanger, and a significant amount of heat is transferred between them via conduction. Consequently, the temperature fluctuation in the filter due to the influence of the indoor heat exchanger is larger.

[0129] S703. During the condensation stage, the refrigerant flow that meets the second condensation temperature is controlled to pass through the indoor heat exchanger.

[0130] Optionally, the range of the second frost temperature is: T2 凝霜 ≤0℃.

[0131] In this embodiment, the indoor heat exchanger and the filter screen generate frost simultaneously during the frost stage. The refrigerant used to frost both flows through the indoor heat exchanger. Therefore, the components and adjustment methods for controlling the frost stage can be referred to in the related art for frost control methods that use the indoor heat exchanger as the object of cleaning. This application is not limited to this.

[0132] S704. During the defrosting stage, the refrigerant that meets the second defrosting temperature is controlled to flow through the indoor heat exchanger.

[0133] Optionally, the range of the second defrosting temperature is: T2 化霜 ≥45℃.

[0134] In this embodiment, the indoor heat exchanger and the filter are defrosted simultaneously during the defrosting stage. The refrigerant used to defrost both still flows through the indoor heat exchanger. Therefore, the components and adjustment methods for controlling the defrosting stage can be referred to in the defrosting control methods that target the indoor heat exchanger for cleaning in related technologies. This application is not limited to this.

[0135] S705. Determine whether cleaning is complete. If yes, proceed to step S706; otherwise, return to step S704.

[0136] Optionally, the completion of cleaning can be determined based on the duration of the previous defrosting stage. In this embodiment, a preset duration for the defrosting stage is provided. When entering the defrosting stage, the duration of the defrosting stage is timed. If the timed duration is greater than or equal to the preset duration, the defrosting can be determined to be complete, and step S706 is executed. If the timed duration is less than the preset duration, the operation state of the defrosting stage remains unchanged.

[0137] After cleaning the filter, you can exit the cleaning mode.

[0138] S706, Control the filter to reset.

[0139] In this embodiment, after cleaning is completed, the filter is controlled to move back to its initial position.

[0140] In this embodiment, the cleaning mode also involves controlling one or more cleaning parameters, including but not limited to: compressor frequency, fan speed, throttling device opening degree, and air guide vane angle, etc. By adjusting one or more cleaning parameters, the air conditioner's operating state can meet the state requirements of each stage of the cleaning process, such as the requirement for the second defrosting temperature and the amount of defrosting refrigerant during the defrosting stage; or the requirement for the second defrosting temperature and the amount of defrosting refrigerant during the defrosting stage.

[0141] Optionally, the cleaning parameters for the cleaning mode are obtained based on the degree of dirtiness of the filter. The specific method of obtaining these parameters can be referred to in the previous embodiment and will not be repeated here.

[0142] Alternatively, since the indoor heat exchanger undergoes simultaneous condensation and defrosting during the cleaning process, the cleaning objects in this embodiment include both the indoor heat exchanger and the filter screen. Therefore, the cleaning parameters can be obtained based on the degree of dirtiness of the filter screen and the indoor heat exchanger.

[0143] In some embodiments, the degree of dirtiness of the indoor heat exchanger can be determined based on the rate of change of the outlet air temperature when the indoor heat exchanger is operating in normal mode. Here, since dirt can affect the heat exchange efficiency between the indoor heat exchanger and the air flowing through it, the more dirt there is, the smaller the rate of change of the outlet air temperature of the indoor heat exchanger, and vice versa. Therefore, the degree of dirtiness of the indoor heat exchanger can be determined based on the change in the current rate of change of the outlet air temperature compared to the rate of change of the outlet air temperature under clean conditions.

[0144] For example, the degree of dirtiness of the indoor heat exchanger is divided into two levels: severe and mild. The rate of change of the outlet air temperature in a clean state is T1 / t, and the rate of change of the outlet air temperature detected in a certain test is T2 / t. In this embodiment, the degree of dirtiness is judged based on the rate difference obtained by T1 / t-T2 / t. Specifically, when T1 / t-T2 / t≥△T / t, the degree of dirtiness of the indoor heat exchanger is determined to be severe; while when T1 / t-T2 / t<△T / t, the degree of dirtiness of the filter is determined to be mild.

[0145] Optionally, in this embodiment, the cleaning parameters corresponding to the cleaning intensity are selected by comprehensively considering the degree of dirtiness of the indoor heat exchanger and the filter. Optionally, the cleaning intensity is divided into three levels, A, B, and C, from high to low. When both the indoor heat exchanger and the filter are lightly dirty, the cleaning parameters corresponding to the lowest cleaning intensity level, C, are selected. When only one of the indoor heat exchanger and the filter is severely dirty, the cleaning parameters corresponding to the medium cleaning intensity level, B, are selected. And when both the indoor heat exchanger and the filter are severely dirty, the cleaning parameters corresponding to the highest cleaning intensity level, A, are selected.

[0146] In the two embodiments of this disclosure, the refrigerant is flowed through a refrigerant pipe laid on the filter screen or the filter screen is attached to the indoor heat exchanger, so that the filter screen undergoes a cleaning process including condensation and defrosting. This can achieve a better cleaning effect and effectively improve the user experience of the air conditioner.

[0147] Combination Figure 8 As shown, this embodiment of the present disclosure provides an apparatus for cleaning an air conditioner filter, including a cleaning entry module 81 and a cleaning exit module 82. The cleaning entry module 81 is configured to control entry into a cleaning mode, wherein the cleaning mode includes a cleaning process that involves sequentially frosting and defrosting the filter; the cleaning exit module 82 is configured to control exit from the cleaning mode after cleaning is completed.

[0148] The apparatus for cleaning air conditioning filters provided in this embodiment of the present disclosure can perform a cleaning process including defrosting and frost-freeing, which can achieve a better cleaning effect.

[0149] Optionally, the cleaning entry module 81 is configured as follows:

[0150] During the defrosting stage, the refrigerant flow is controlled to meet the first defrosting temperature through the filter refrigerant pipe; and...

[0151] During the defrosting stage, the refrigerant flow that meets the first defrosting temperature is controlled to flow through the filter refrigerant pipe;

[0152] The filter refrigerant pipe includes one or more pipes installed on the filter and connected to the refrigerant circulation loop of the air conditioner.

[0153] Optionally, the cleaning exit module 82 is configured to control the blocking of the refrigerant pipe of the filter.

[0154] Optionally, the cleaning parameters for the cleaning mode are determined based on the degree of dirtiness of the filter.

[0155] Alternatively, the cleaning entry module 81 is configured as follows:

[0156] Control the filter to move to the cleaning position, where the cleaning position includes the position where the filter is in contact with the indoor heat exchanger;

[0157] During the defrosting stage, the refrigerant flow, controlled to meet the second defrosting temperature, passes through the indoor heat exchanger; and,

[0158] During the defrosting stage, refrigerant that meets the second defrosting temperature flows through the indoor heat exchanger.

[0159] Optionally, the cleaning exit module 82 is configured to control the filter to reset.

[0160] Optionally, the cleaning parameters for the cleaning mode are obtained based on the degree of dirtiness of the filter, or based on the degree of dirtiness of the filter and the indoor heat exchanger.

[0161] Combination Figure 9 As shown in the figure, this disclosure provides an apparatus for cleaning air conditioner filters, including a processor 900 and a memory 901. Optionally, the apparatus may further include a communication interface 902 and a bus 903. The processor 900, communication interface 902, and memory 901 can communicate with each other via the bus 903. The communication interface 902 can be used for information transmission. The processor 900 can call logical instructions in the memory 901 to execute the method for cleaning air conditioner filters described in the above embodiment.

[0162] Furthermore, the logic instructions in the aforementioned memory 901 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0163] The memory 901, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 900 executes functional applications and data processing by running the program instructions / modules stored in the memory 901, thereby implementing the method for cleaning the air conditioner filter described in the above embodiments.

[0164] The memory 901 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 901 may include high-speed random access memory and may also include non-volatile memory.

[0165] This disclosure provides an air conditioner that includes the above-described apparatus for cleaning the air conditioner filter.

[0166] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for cleaning an air conditioner filter.

[0167] This disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the above-described method for cleaning an air conditioner filter.

[0168] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0169] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0170] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0171] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0172] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0173] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for cleaning air conditioner filters, characterized in that, include: The system controls entry into a cleaning mode, wherein the cleaning mode includes a cleaning process in which the filter screen undergoes a process of defrosting and refrost sequentially. During the condensation stage, refrigerant at a controlled first condensation temperature flows through the filter refrigerant pipe; and during the defrosting stage, refrigerant at a controlled first defrosting temperature flows through the filter refrigerant pipe; wherein the filter refrigerant pipe includes one or more pipes disposed on the filter and connected to the refrigerant circulation loop of the air conditioner. After cleaning is complete, exit the cleaning mode.

2. The method according to claim 1, characterized in that, The control to exit the cleaning mode includes: Control and block the refrigerant pipe of the filter.

3. The method according to claim 1 or 2, characterized in that, The cleaning parameters for the cleaning mode are obtained based on the degree of dirtiness of the filter.

4. The method according to claim 1, characterized in that, The control to enter the cleaning mode includes: Control the filter screen to move to a cleaning position, wherein the cleaning position includes the position where the filter screen is in contact with the indoor heat exchanger; During the condensation stage, the refrigerant flow, controlled to meet the second condensation temperature, passes through the indoor heat exchanger; and, During the defrosting stage, refrigerant that meets the second defrosting temperature flows through the indoor heat exchanger.

5. The method according to claim 4, characterized in that, The control to exit the cleaning mode includes: Control the filter to reset.

6. The method according to claim 4 or 5, characterized in that, The cleaning parameters for the cleaning mode are obtained based on the degree of dirtiness of the filter, or based on the degree of dirtiness of the filter and the indoor heat exchanger.

7. A device for cleaning air conditioner filters, characterized in that, include: The cleaning entry module is configured to control entry into a cleaning mode, wherein the cleaning mode includes a cleaning process that causes the filter to successively frost and defrost. During the condensation stage, refrigerant at a controlled first condensation temperature flows through the filter refrigerant pipe; and during the defrosting stage, refrigerant at a controlled first defrosting temperature flows through the filter refrigerant pipe; wherein the filter refrigerant pipe includes one or more pipes disposed on the filter and connected to the refrigerant circulation loop of the air conditioner. The cleaning exit module is configured to control the exit from the cleaning mode after cleaning is completed.

8. An apparatus for cleaning air conditioner filters, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to perform, when executing the program instructions, the method for cleaning an air conditioning filter as described in any one of claims 1 to 6.

9. An air conditioner, characterized in that, Includes the apparatus for cleaning air conditioning filters as described in claim 7 or 8.

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