WO2021227422A1

WO2021227422A1 - Structure for self-cleaning of air conditioner filter, and air conditioner

Info

Publication number: WO2021227422A1
Application number: PCT/CN2020/130039
Authority: WO
Inventors: 庄佳兰; 刘伟彤
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2020-05-09
Filing date: 2020-11-19
Publication date: 2021-11-18
Also published as: CN111578385B; CN111578385A

Abstract

The present application relates to the technical field of air conditioning. Disclosed is a structure for the self-cleaning of an air conditioner filter, comprising: a filter, comprising a first end portion and a second end portion; a first driving device connected to the first end portion and configured to drive the first end portion to move in a direction close to a heat exchanger of an air conditioner; and a first length adjustment device connected to the second end portion and configured to adjust an unreceived length of the filter, wherein during the process that the first driving device drives the first end portion to move in a direction close to the heat exchanger, the first length adjustment device is configured to increase the unreceived length, such that the filter can move to a cleaning position where the filter abuts against the heat exchanger. Also disclosed is an air conditioner.

Description

Self-cleaning structure for air conditioner filter screen and air conditioner

This application is filed based on a Chinese patent application with an application number of 202010387150.8 and an application date of May 9, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by reference.

Technical field

This application relates to the technical field of air conditioners, for example, to a structure for self-cleaning of air conditioner filters and an air conditioner.

Background technique

At present, when cleaning the filter of the air conditioner, the dust on the filter needs to be concentrated in the dust collecting box, and the user manually disassembles and cleans the dust collecting box, which makes the cleaning steps of the filter cumbersome, inconvenient to clean, and poor user experience.

Summary of the invention

In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general comment, nor is it intended to determine key/important components or describe the protection scope of these embodiments, but serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide a self-cleaning structure for an air conditioner filter screen and an air conditioner, so as to solve the problems of complicated cleaning steps and inconvenient cleaning of the filter screen in the prior art.

According to a first aspect of the embodiments of the present invention, there is provided a self-cleaning structure for an air conditioner filter, including: a filter including a first end and a second end; a first driving device, and the first The ends are connected and are configured to drive the first end to move in a direction close to the heat exchanger; a first length adjusting device is connected to the second end and is configured to adjust the filter screen In the process of the first drive device driving the first end to move in a direction close to the heat exchanger, the first length adjusting device is configured to increase the The storage length is so that the filter screen can move to a cleaning position close to the heat exchanger.

According to a second aspect of the embodiments of the present invention, there is provided an air conditioner, including: a heat exchanger; and the self-cleaning structure for an air conditioner filter as described in any of the embodiments of the first aspect, filtering The net is arranged on one side of the heat exchanger.

The self-cleaning structure for the air conditioner filter and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

When the filter screen needs to be cleaned, the first drive device drives the filter screen to move closer to the heat exchanger, and the first length adjustment device increases the unaccommodated length of the filter screen so that the filter screen can be driven by the first drive device. Move down to the cleaning position. In the cleaning position, since the filter screen is close to the heat exchanger, that is, the filter screen is attached to the surface of the heat exchanger, the filter screen can be cleaned while the heat exchanger is cleaned, in other words, the filter screen can be cleaned. Simultaneously with the cleaning of the heat exchanger. On the one hand, the filter screen is driven to the cleaning position by the first drive device and the first length adjustment device to realize the cleaning of the filter screen, which makes the cleaning method of the filter screen simple and convenient to clean, and avoids the need to remove the filter screen in the prior art. The disadvantages of collecting dust in the dust box and then manually disassembling and washing the dust box; on the other hand, while cleaning the filter, it avoids the disadvantages of separate cleaning of the filter and the cleaning of the heat exchanger, and improves the filter Cleaning efficiency of nets and heat exchangers.

The above general description and the following description are only exemplary and explanatory, and are not used to limit the application.

Description of the drawings

One or more embodiments are exemplified by the accompanying drawings. These exemplified descriptions and drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

FIG. 1 is a schematic diagram of an assembly structure of a first driving device, a second length adjusting device, and a second guide member according to an embodiment of the present disclosure;

2 is a schematic diagram of a self-cleaning structure for air conditioner filter provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram from a first perspective of an air conditioner provided by an embodiment of the present disclosure;

4 is a schematic structural diagram from a second perspective of an air conditioner provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram from a third perspective of an air conditioner provided by an embodiment of the present disclosure;

Fig. 6 is a schematic structural diagram from a fourth perspective of an air conditioner provided by an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram from the first perspective of another air conditioner provided by an embodiment of the present disclosure;

Fig. 8 is a schematic structural diagram from a second perspective of another air conditioner provided by an embodiment of the present disclosure;

Fig. 9 is a schematic diagram of an enlarged structure of part G in Fig. 8;

Fig. 10 is a schematic structural diagram from a third perspective of another air conditioner provided by an embodiment of the present disclosure;

Fig. 11 is a schematic diagram of an enlarged structure of part N in Fig. 10;

Fig. 12 is a schematic structural diagram from a fourth perspective of another air conditioner provided by an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of an enlarged structure of part P in FIG. 12;

14 is a schematic structural view from the first perspective of another self-cleaning structure for an air conditioner filter provided by an embodiment of the present disclosure;

15 is a schematic structural view from a second perspective of another self-cleaning structure for an air conditioner filter provided by an embodiment of the present disclosure;

16 is a schematic structural view from a third perspective of another self-cleaning structure for an air conditioner filter provided by an embodiment of the present disclosure;

FIG. 17 is a schematic structural view from a fourth perspective of another self-cleaning structure for an air conditioner filter provided by an embodiment of the present disclosure;

18 is a schematic diagram of the assembly structure of the first reel and the support wheel provided by an embodiment of the present disclosure;

19 is a partial structural diagram of a self-cleaning structure for an air conditioner filter provided by an embodiment of the present disclosure;

20 is a schematic diagram of another self-cleaning structure for air conditioner filter provided by an embodiment of the present disclosure;

FIG. 21 is a schematic structural diagram from the first perspective of still another air conditioner according to an embodiment of the present disclosure; FIG.

Fig. 22 is a schematic structural diagram from a second perspective of still another air conditioner provided by an embodiment of the present disclosure.

Reference signs:

1 housing, 11 installation space, 2 heat exchanger, 21 first heat exchange section, 22 second heat exchange section, 3 filter screen, 31 filter screen body, 32 connection line, 33 first end, 34 second end Section, 4 first drive device, 5 first length adjustment device, 51 first reel, 6 second drive device, 7 second length adjustment device, 71 second reel, 8 first limit track, 81 limit Block, 9 blocks, 10 support wheels, 201 the first guide part, 202 the second guide part.

Detailed ways

In order to have a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a number of details are used to provide a sufficient understanding of the disclosed embodiments. However, without these details, one or more embodiments can still be implemented. In other cases, in order to simplify the drawings, well-known structures and devices may be simplified for display.

The terms “first” and “second” in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances for the purposes of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "in", "outer", "front", "rear", etc., are based on the directions shown in the drawings or Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and the embodiments thereof, and are not used to limit that the indicated device, element, or component must have a specific orientation, or be constructed and operated in a specific orientation. In addition, some of the above terms may be used to indicate other meanings in addition to the orientation or position relationship. For example, the term "shang" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "set", "connected", and "fixed" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or two devices, components, or The internal communication between the components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless otherwise stated, the term "plurality" means two or more.

The term "and/or" refers to an association relationship describing objects, which means that there can be three relationships. For example, A and/or B means: A or B, or, A and B.

It should be noted that, in the case of no conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

As shown in FIGS. 1-22, embodiments of the present disclosure provide a self-cleaning structure for air conditioner filters. The air conditioner may be a wall-mounted air conditioner or a cabinet air conditioner. The following specifically takes a wall-mounted air conditioner as an example for description.

The air conditioner includes a heat exchanger 2, a wind wheel or fan, a casing 1, and a self-cleaning structure for the air conditioner filter. The self-cleaning structure for the air conditioner filter includes a filter 3, which is set in the heat exchange On one side of the heat exchanger 2, for example, as shown in FIG. 3, the filter screen 3 is arranged above the heat exchanger 2. The housing 1 defines an installation space 11, the heat exchanger 2 and the filter 3 are arranged in the installation space 11, and the housing 1 is provided with an air outlet communicating with the installation space 11. Under the action of the wind wheel or fan, the air After passing through the filter screen 3 and the heat exchanger 2 in turn, it is blown out through the air outlet.

As shown in FIG. 20, the structure for the self-cleaning of the air conditioner filter includes the filter 3, the first driving device 4 and the first length adjusting device 5.

As shown in Figures 5 and 6, the filter screen 3 includes a first end 33 and a second end 34 that are arranged oppositely. Optionally, the first end 33 and the second end 34 are respectively in the width direction of the filter screen 3. The ends. As shown in Figures 3 to 13, the first end is the rear end of the filter and the second end is the front end of the filter as an example. It can be understood that the first end can also be the front end of the filter. The second end is the rear end of the filter, and this situation is also within the scope of protection of the present application.

The first driving device 4 is connected to the first end 33 and is configured to drive the first end 33 to move in a direction close to the heat exchanger 2.

The first length adjustment device 5 is connected to the second end 34 and is configured to adjust the unaccommodated length of the filter screen 3. As shown in FIG. 2, the filter screen between the first length adjustment device 5 and the second length adjustment device 7 The length is the unaccommodated length, where, as shown in Figure 6, the first driving device 4 drives the first end 33 to move in a straight line approaching the heat exchanger 2 (downward), and the first length adjusting device 5 is It is configured to increase the unaccommodated length of the filter net, so that the filter net 3 can move to a cleaning position abutting the heat exchanger 2. As shown in Figure 21, the filter screen is in the working position (the position of the filter screen when the air conditioner is normally cooled and heated). ) Movement, the first length adjusting device 5 increases the unaccommodated length of the filter screen, so that the filter screen 3 can move to a cleaning position close to the heat exchanger, as shown in FIG. 22, the filter screen is in the cleaning position.

As shown in Figure 6, when the filter screen 3 needs to be cleaned, the first driving device 4 drives the first end 33 to move in a direction close to the heat exchanger 2. During this movement, the first length adjusting device 5 increases. The unaccommodated length of the large filter screen 3 enables the first end 33 to move in a direction close to the heat exchanger 2 and move to a cleaning position close to the heat exchanger 2.

In the cleaning position, the frosting and defrosting of the heat exchanger 2 can be used to achieve the frosting and defrosting of the filter 3, so that the filter 3 can be cleaned while the heat exchanger 2 is cleaned, so that the filter 3 can be cleaned. The cleaning method is simple, and the cleaning efficiency of the filter screen 3 and the heat exchanger 2 is improved, the behavior of the user is reduced, and the drawbacks that the cleaning of the filter screen 3 and the cleaning of the heat exchanger 2 need to be performed separately are avoided.

In the cleaning position, the filter 3 and the heat exchanger 2 are close to each other, where “close to” means that the distance between the filter 3 and the heat exchanger 2 is less than the distance between the filter 3 and the heat exchanger 2 when the air conditioner is normally cooled and heated. The distance between the heat exchangers 2, so "abutting against each other" includes that the filter screen 3 is at least partially attached to the surface of the heat exchanger 2 (that is, the distance between the filter screen 3 and the heat exchanger 2 is zero) and the filter screen There are two cases where the distance between at least part of 3 and the heat exchanger 2 is small. As shown in Figures 3 to 6, the filter screen 3 is arranged above the heat exchanger 2, and the first end 33 of the filter screen 3 is attached to the upper surface of the heat exchanger 2. At this time, the filter screen 3 and the heat exchange The distance between the devices 2 is zero. Among them, the smaller distance between the filter screen 3 and the heat exchanger 2 means that the distance between the filter screen 3 and the heat exchanger 2 is smaller than the distance between the filter screen 3 and the heat exchanger 2 during normal cooling and heating of the air conditioner. For the convenience of description, the position of the filter screen 3 during the normal cooling and heating of the air conditioner is defined as the working position. Therefore, when the filter screen 3 and the heat exchanger 2 are "closed" The distance is smaller than the distance between the filter screen 3 and the heat exchanger 2 at the working position. In other words, when the filter screen 3 needs to be cleaned, the first drive device 4 drives the filter screen 3 to move in a direction close to the heat exchanger 2 and move to the cleaning position. After the cleaning is completed, the first drive device 4 drives the filter screen 3 Move away from the heat exchanger 2 and move to the working position.

Optionally, as shown in FIGS. 1 and 2, the structure for self-cleaning the air conditioner filter further includes a second driving device 6 and a second length adjusting device 7, and the second driving device 6 and the first length adjusting device 5 The driving connection is configured to drive the first length adjusting device 5 to move in a direction close to the heat exchanger 2. The first length adjusting device 5 is connected to the second end 34, so that the second driving device 6 passes through the first length adjusting device 5 drives the second end 34 to move in a direction close to the heat exchanger 2.

Optionally, the first driving device 4 is connected to the first end 33 through the second length adjusting device 7, and the second length adjusting device 7 is configured to adjust the unaccommodated length, and is driven by the first driving device 4 to Move in the direction close to the heat exchanger 2.

As shown in Figure 4, the second length adjustment device 7 is connected to the first end 33 and is configured to adjust the unaccommodated length. The second length adjustment device 7 is connected to the first drive device 4, and the first drive device 4 passes through The second length adjusting device 7 is connected to the first end 33. The first driving device 4 is configured to drive the second length adjusting device 7 to move in a direction close to the heat exchanger 2, thereby driving the first end 33 to move in a direction close to the heat exchanger 2.

As shown in Figure 4, the filter is in the working position. The three states of the filter are shown in Figure 3. For the convenience of description, the filter is marked as 3-A, 3-B and 3-C. Among them, the filter of 3-A is in the working position, and the filter of 3-B is the No. A driving device 4 drives the second length adjustment device 7 to move closer to the heat exchanger to clean the first end of the filter. 3-C is the second driving device 6 to drive the first length adjustment device 5 to move closer to the heat exchanger. The direction of the heater moves to clean the second end of the filter. As shown in FIG. 5, when the second drive device 6 drives the second end 34 to move toward the heat exchanger 2 through the first length adjustment device 5, the second length adjustment device 7 adjusts the unaccommodated length of the filter 3 Specifically, the second length adjusting device 7 increases the unaccommodated length of the filter screen 3 so that the filter screen 3 can move to a cleaning position abutting the heat exchanger 2. At the cleaning position, at least part of the filter screen 3 is in close contact with the heat exchanger 2, where “close to” means that the distance between the filter screen 3 and the heat exchanger 2 is less than the filter screen when the air conditioner is normally cooled and heated. The distance between 3 and the heat exchanger 2, so "abutting" includes that the filter 3 is at least partially attached to the surface of the heat exchanger 2 (that is, the distance between the filter 3 and the heat exchanger 2 is zero) And there are two cases where the distance between at least part of the filter screen 3 and the heat exchanger 2 is small. Taking the filter screen 3 arranged above the heat exchanger 2 as an example, the second end 34 of the filter screen 3 is attached to the upper surface of the heat exchanger 2. At this time, the distance between the filter screen 3 and the heat exchanger 2 Is zero. Among them, the smaller distance between the filter 3 and the heat exchanger 2 means that the distance between the filter 3 and the heat exchanger 2 is smaller than the distance between the filter 3 and the heat exchanger 2 during normal cooling and heating of the air conditioner. For the convenience of description, the position of the filter screen 3 during the normal cooling and heating of the air conditioner is defined as the working position. Therefore, when the filter screen 3 and the heat exchanger 2 are "closed" The distance is smaller than the distance between the filter screen 3 and the heat exchanger 2 at the working position.

Among them, the unaccommodated length is the length of the portion of the filter screen 3 located between the first length adjusting device 5 and the second length adjusting device 7. Taking the first end 33 wrapped around the second length adjusting device 7 and the second end 34 wrapped around the first length adjusting device 5 as an example, the second length adjusting device 7 is configured to adjust the winding of the filter screen 3 The first length adjusting device 5 is configured to adjust the unaccommodated length by adjusting the winding length of the filter screen 3, and the unaccommodating length refers to that the filter screen 3 is not in the first length winding device and the first length adjustment device. The length of the winding device of the second length winding, in other words, the length of the portion of the filter screen 3 located between the first length adjusting device 5 and the second length adjusting device 7.

The filter screen 3 includes a filter screen body 31. In the working position, the filter screen body 31 corresponds to the heat exchanger 2 and is used to filter air. The first end and the second end of the filter are the first end and the second end of the filter body, respectively, and the first end 33 and the second end 34 of the filter body 31 are adjusted with the second length respectively. The device 7 is connected to the first length adjusting device 5. Alternatively, the filter screen 3 includes a filter screen body 31 and a connecting line 32. The connecting line 32 is located at one end of the filter screen body 31. 32 is connected to the second length adjustment device 7; it is also possible that the connecting line 32 is located at the other end of the filter body 31, and the other end corresponds to the second end 34 of the filter 3, and the filter body 31 is connected The wire 32 is connected to the first length adjusting device 5, or it may be provided with connecting wires 32 at the opposite ends of the filter body 31, and the opposite ends respectively correspond to the first end 33 and the second end 34. One end of the filter body 31 (corresponding to the first end 33) is connected to the second length adjusting device 7 through a connecting wire 32, and the other end of the filter body 31 (corresponding to the second end 34) ) It is connected to the first length adjustment device 5 through the connecting wire 32. In other words, the filter body can be directly connected to the first length adjustment device or the second length adjustment device, or it can be connected to the first length adjustment device or the first length adjustment device via a connecting wire. The second length adjusting device is connected.

In other words, the body of the filter screen 3 can be directly connected to the first length adjustment device 5 and/or the second length adjustment device 7, or it can be connected to the first length adjustment device 5 and/or the second length adjustment device through the connecting line 32. 7-phase connection.

The number of the first driving device 4 is one or more, the second length adjusting device 7 is no less than the number of the first driving device 4, and each first driving device 4 is connected with at least one second length adjusting device 7, and Optionally, the number of the second length adjusting devices 7 and the number of the first driving devices 4 are equal and correspond to each other one to one. When the number of the first driving device 4 is multiple, the multiple first driving devices 4 are sequentially arranged along the length direction of the filter screen 3. The number of the second driving device 6 is one or more, the number of the first length adjusting device 5 is not less than the number of the second driving device 6, and each second driving device 6 corresponds to at least one first length adjusting device 5 Connected, optionally, the number of the first length adjusting device 5 and the number of the second driving device 6 are equal and correspond to each other one to one. When the number of the second driving devices 6 is multiple, the multiple second driving devices 6 are sequentially arranged along the length direction of the filter screen 3.

The first driving device 4 drives the second length adjusting device 7 to make a linear reciprocating movement, thereby driving the filter screen 3 to move between the cleaning position and the working position. The second driving device 6 drives the first length adjusting device 5 to make a linear reciprocating movement, thereby driving the filter screen 3 to move between the cleaning position and the working position.

Taking the filter screen 3 above the heat exchanger 2 as an example, the first driving device 4 drives the second length adjustment device 7 to move downwards, the second end 34 remains unchanged in the vertical direction, and the first length adjustment device 5 increases. For the uncontained length of the large filter screen 3, the first end 33 moves downwards and abuts against the heat exchanger 2. At this time, the filter screen 3 is in the cleaning position. After the cleaning is completed, the first driving device 4 drives the second length adjustment The device 7 moves upwards, and the first end 33 moves upwards to the working position. After that, the second driving device 6 drives the first length adjustment device 5 to move downward, the position of the first end 33 in the up and down direction remains unchanged, the second length adjustment device 7 increases the unaccommodated length of the filter 3, and the second The end 34 moves downwards and abuts against the heat exchanger 2. At this time, the filter screen 3 is in the cleaning position. After the cleaning is completed, the second driving device 6 drives the first length adjusting device 5 to move upwards, and the second end 34 moves upwards Move to the working position to complete the cleaning of the filter screen 3.

The first drive device drives the first end to move closer to or away from the heat exchanger. Specifically, the first drive device can drive the first end to move linearly to move closer to or away from the heat exchanger, or it can be the first end. The driving device drives the first end to move in a curvilinear motion to approach or move away from the heat exchanger. In Figures 3 to 6, the first drive device drives the first end to move linearly to approach or move away from the heat exchanger, as shown in Figure 20. In Figure 21 and Figure 22, the first driving device drives the first end to move in a curve to move closer to or away from the heat exchanger. The second drive device drives the second end to move closer to or away from the heat exchanger. The second drive device can drive the second end to move linearly to move closer to or away from the heat exchanger, or it can be driven by the second drive device. The second end makes a curvilinear movement to approach or move away from the heat exchanger.

Optionally, in the first specific embodiment, the first driving device 4 and/or the second driving device 6 includes a screw rod, a driver, and a nut. The driver is drivingly connected with the screw rod and is configured to drive the screw rod to rotate; the nut is sleeved on the outside of the screw rod and is connected with the first length adjustment device 5 and/or the second length adjustment device 7.

At least one of the first driving device 4 and the second driving device 6 may adopt a screw nut mechanism, and the screw nut head includes a screw rod, a driver, and a nut. Specifically, taking the first driving device 4 as a screw-nut mechanism as an example, the nut is connected to the second length adjusting device 7, the driver drives the screw to rotate around the axis of the screw, the screw is used as the second guide member 202, and the nut is used as The moving part, the screw rod drives the nut to move, and the nut is connected with the second length adjusting device 7 so as to drive the second length adjusting device 7 to make a linear reciprocating motion. Taking the second driving device 6 as a screw nut mechanism as an example, the nut is connected with the first length adjusting device 5, the driver drives the screw to rotate around the axis of the screw, the screw is used as the first guide part 201, and the nut is used as the moving part. The screw rod drives the nut to move, and the nut is connected to the first length adjusting device 5, thereby driving the first length adjusting device 5 to make a linear reciprocating motion. The driver can be a motor or a motor, and the output shaft of the motor or the motor is connected with the lead screw and drives the lead screw to rotate.

Taking the filter screen 3 above the heat exchanger 2 as an example, the screw rod may have a small angle between the vertical direction and the vertical direction, in other words, the screw rod is generally arranged in the vertical direction.

In the second specific embodiment, the first driving device 4 and/or the second driving device 6 includes a gear, a driver, and a rack. The driver is drivingly connected with the gear, and is configured to drive the gear to rotate; the rack is meshed with the gear, and is arranged on the first length adjustment device 5 and/or the second length adjustment device 7.

At least one of the first driving device 4 and the second driving device 6 may be in the form of a rack and pinion transmission, and the form of the rack and pinion transmission includes a gear, a driver, and a rack. Specifically, taking the transmission form of the first driving device 4 including a rack and pinion as an example, the rack is provided in the second length adjusting device 7, and the driver drives the gear to rotate, and the gear meshes with the rack to drive the rack to move, thereby driving the rack to move. The second length adjusting device 7 performs linear reciprocating motion. The rack can be a linear rack or an arc-shaped rack. When the rack is a linear rack, the first driving device drives the first end to make a linear reciprocating motion. When it is an arc-shaped rack, the first driving device drives the first end to make a curved motion, for example, an arc-shaped motion. Taking the transmission form of the second driving device 6 including a rack and pinion as an example, the rack is provided in the first length adjusting device 5, the driver drives the gear to rotate, and the gear meshes with the rack to drive the rack to move, thereby driving the first length The adjusting device 5 performs linear reciprocating motion. The rack can be a linear rack or an arc-shaped rack. When the rack is a linear rack, the second driving device drives the second end to make a linear reciprocating motion. When the rack is an arc-shaped rack When racking, the second driving device drives the second end to make a curved movement, such as an arc movement. Whether the rack is a linear rack or an arc-shaped rack can be flexibly selected according to the internal space of the air conditioner.

The driver can be a motor or a motor, and the output shaft of the motor or the motor is connected to the gear and drives the gear to rotate.

In the third specific embodiment, the first driving device 4 and/or the second driving device 6 includes a connecting rod, a driver, a guide rail, and a sliding block. The driver is drivingly connected to one end of the connecting rod; the sliding block is relatively slidably arranged in the guide rail, and the sliding block is rotatably connected to the other end of the connecting rod, and is connected to the first length adjusting device 5 and/or the second length adjusting device 7 Phase connection.

At least one of the first driving device 4 and the second driving device 6 may be in the form of a link slider mechanism, which includes a link, a driver, a guide rail, and a slider. Specifically, taking the first driving device 4 including a connecting rod slider mechanism as an example, the slider is connected to the second length adjusting device 7, the driver drives the connecting rod to move, and the connecting rod drives the slider to slide relative to the guide rail. As a moving part, the guide rail is used as the second guide part 202 to drive the second length adjusting device 7 to make a linear reciprocating movement relative to the guide rail, thereby driving the filter screen 3 to reciprocate between the working position and the cleaning position.

Taking the filter screen 3 above the heat exchanger 2 as an example, the guide rail may have a small angle between the vertical direction and the vertical direction, in other words, the guide rail is generally arranged in the vertical direction.

The first driving device and the second driving device may adopt the form of a worm gear mechanism, a belt drive, etc. in addition to the above-mentioned screw-nut mechanism, rack-and-pinion mechanism, and connecting rod slider mechanism.

Optionally, the first end 33 is wound on the second length adjusting device 7, and the second length adjusting device 7 is configured to adjust the unaccommodated length by adjusting the winding length of the filter screen 3.

The first length adjustment device 5 makes more filter screens 3 wound on the first length adjustment device 5 to increase the winding length of the filter screen 3 and reduce the unaccommodated length; the first length adjustment device 5 makes less The filter screen 3 is wound on the first length adjusting device 5 to reduce the winding length of the filter screen 3 and increase the unaccommodated length.

Optionally, the second end 34 is wound on the first length adjusting device 5, and the first length adjusting device 5 is configured to adjust the unaccommodated length by adjusting the winding length of the filter mesh 3.

The second length adjustment device 7 makes more filter screens 3 wrapped around the second length adjustment device 7, so as to increase the winding length of the filter screen 3 and reduce the unaccommodated length; the second length adjustment device 7 makes less The filter screen 3 is wound on the second length adjusting device 7 to reduce the winding length of the filter screen 3 and increase the unaccommodated length.

Optionally, the first length adjusting device 5 includes a first retractable cord reel or a first automatic recovery cord reel.

Optionally, the second length adjusting device 7 includes a second telescopic cord reel or a second automatic recovery cord reel.

The first telescopic reel and/or the second telescopic reel include a positioning gear plate, a scroll spring, a central shaft and a connecting contact, the central shaft is arranged at the center of the positioning gear plate, and the scroll spring is arranged on the positioning gear plate On the side of, the filter screen 3 is spirally arranged on the positioning gear plate, the connecting contact is arranged between the filter screen 3 and the central shaft, and the filter screen 3 is in contact with the central shaft through the connecting contact. Optionally, the filter body 31 or the connecting wire 32 is wound on the first telescopic reel and/or the second telescopic reel.

Optionally, the first length adjusting device 5 includes a first driving part and a first reel 51, the second end 34 is wound on the first reel 51, and the first driving part is drivingly connected to the first reel 51 and is It is configured to drive the first reel 51 to rotate. The second end 34 of the filter screen 3 is wound on the first reel 51. By adjusting the winding length of the filter screen 3 on the first reel 51, the winding length and the unaccommodated length of the filter screen 3 are adjusted. The first driving component is drivingly connected with the first reel 51 and is used to drive the first reel 51 to rotate, thereby adjusting the winding length of the filter screen 3 on the first reel 51.

Optionally, the second length adjusting device 7 includes a second driving part and a second reel 71, the first end 33 is wound on the second reel 71, and the second driving part is drivingly connected to the second reel 71 and is It is configured to drive the second reel 71 to rotate.

The first end 33 of the filter screen 3 is wound on the second reel 71, and by adjusting the winding length of the filter 3 on the second reel 71, the winding length and the unaccommodated length of the filter 3 are adjusted. The second driving component is drivingly connected to the second reel 71 and is used to drive the second reel 71 to rotate, thereby adjusting the winding length of the filter screen 3 on the second reel 71.

The first driving part and the second driving part may be a motor or a motor, and the first driving part and the second driving part rotate in a positive direction to realize the adjustment of the unaccommodated length.

The first end 33 is wound on the second length adjusting device 7, and the winding length of the filter screen 3 is adjusted by the second length adjusting device 7 to adjust the unaccommodated length of the filter screen 3. The second length adjusting device 7 can also be in the form of an elastic member. For example, the second length adjustment device 7 includes a second elastic rope. The unaccommodated length of the filter screen 3 realizes the close contact between the filter screen 3 and the heat exchanger 2.

The second end 34 is wound on the first length adjusting device 5, and the rewinding length of the filter screen 3 is adjusted by the first length adjusting device 5, thereby adjusting the unaccommodated length of the filter screen 3, the first length adjusting device 5 can also be in the form of an elastic member. For example, the second length adjustment device 7 includes a first elastic rope. The unaccommodated length of the filter screen 3 realizes the close contact between the filter screen 3 and the heat exchanger 2.

Optionally, as shown in Figure 9, Figure 11, Figure 13, Figure 18 and Figure 19, the structure for the air conditioner filter self-cleaning further includes a support wheel 10, the support wheel 10 is arranged on the retractable reel and/or The reel is close to the side of the heat exchanger 2 and abuts against the side of the filter screen 3 away from the heat exchanger 2, wherein the outer diameter of the support wheel 10 is smaller than the outer size of the first telescopic reel, and the second telescopic reel The outer size of the wire reel, the outer diameter of the first reel 51 or less than the outer diameter of the second reel 71, here is when the support wheel 10 is used in conjunction with the first telescopic reel, the outer diameter of the support wheel 10 is smaller than the The outer size of a telescopic reel; when the support wheel 10 is used with the second telescopic reel, the outer diameter of the support wheel 10 is smaller than that of the second telescopic reel; when the support wheel 10 is matched with the first reel 51 When in use, the outer diameter of the support wheel 10 is smaller than the outer dimension of the first reel 51; when the support wheel 10 is used in conjunction with the second reel 71, the outer diameter of the support wheel 10 is smaller than the outer dimension of the second reel 71.

The filter screen 3 protruding from the first length adjustment device 5 and/or the second length adjustment device 7 bypasses the support wheel 10, and the side of the filter screen 3 facing away from the heat exchanger 2 abuts against the support wheel 10, and is compared with The first telescopic reel, the second telescopic reel, the first reel 51 or the second reel 71 matched with the support wheel 10, the support wheel 10 is closer to the heat exchanger 2, because the outer diameter of the support wheel 10 is larger Small, the area of the filter screen 3 close to the support wheel 10 is smaller, so that more area on the filter screen 3 can be cleaned. Especially when the space of the air conditioner is small, the supporting wheel 10 can avoid the first telescopic reel, the second telescopic reel, the first reel 51 or the second reel 71 from being too large and inconvenient to approach the heat exchanger 2 As a result, a large area on the filter screen 3 cannot be cleaned. Adding the support wheel 10 can take advantage of the smaller volume of the support wheel 10 so that the filter mesh 3 is close to the heat exchanger 2. Among them, the support wheel 10 may or may not rotate.

As shown in FIG. 11, the radius of the support wheel 10 is smaller than the radius of the first reel 51. As shown in FIG. 9, the radius of the support wheel 10 is smaller than the radius of the second reel 71.

As shown in Figure 8, the filter is in the working position. The three states of the filter are shown in Figure 7. For the convenience of description, the filter is marked as 3-D, 3-E, and 3-F. Among them, the 3-D filter is in the working position, and 3-E is the No. A driving device 4 drives the second length adjustment device 7 to move closer to the heat exchanger to clean the first end of the filter. 3-F is the second driving device 6 to drive the first length adjustment device 5 to move closer to the heat exchanger. The direction of the heater moves to clean the second end of the filter. As shown in Figure 10, the filter screen has two states. For ease of description, the filter screen is marked as 3-J and 3-H. The filter screen of 3-J is in the working position, and the state of the filter screen of 3-H is in When the second driving device 6 drives the second end 34 to move toward the heat exchanger 2 through the first length adjusting device 5, the second length adjusting device 7 adjusts the unaccommodated length of the filter screen 3, specifically, the second length The adjusting device 7 increases the unaccommodated length of the filter screen 3 so that the filter screen 3 can move to a cleaning position abutting the heat exchanger 2. As shown in Figure 12, the filter has two states. For ease of description, the filter is marked as 3-K and 3-M. The 3-K filter is in the working position, and the 3-M filter is in the state When the first driving device 4 drives the first end 33 to move toward the heat exchanger 2 through the second length adjusting device 7, the first length adjusting device 5 adjusts the unaccommodated length of the filter screen 3, specifically, the first length The adjusting device 5 increases the unaccommodated length of the filter screen 3 so that the filter screen 3 can move to a cleaning position abutting the heat exchanger 2.

Optionally, as shown in Figs. 14-17, the structure for self-cleaning the air conditioner filter further includes a limit part and a limit matching part. The limit part is arranged on the filter screen 3; the limit matching part is configured to cooperate with the limit part at the cleaning position, so that the unaccommodated length is less than or equal to the preset length.

In the cleaning position, the limit matching part and the limit part cooperate to prevent the first length adjustment device 5 and/or the second length adjustment device 7 from releasing the filter screen 3, avoiding the unaccommodated length being greater than the preset length, in other words, avoiding the first The length adjusting device 5 and/or the second length adjusting device 7 release too much filter mesh 3, which causes the unaccommodated length of the filter mesh 3 to increase. Optionally, when the first length adjustment device 5 and the second length adjustment device 7 are in the form of a retractable cord reel, a limit part and a limit matching part are provided. When the limit part and the limit matching part cooperate, it can prevent The filter screen 3 extends out of the retractable cord reel, so that the unwound filter screen 3 can be abutted against the heat exchanger 2.

Optionally, the limit part includes a stopper 9 which is arranged outside the first length adjustment device 5 and/or the second length adjustment device 7; In the direction of the middle of the filter screen 3, the stopper 9 and the stopper 81 are arranged in sequence, and the stopper 81 abuts against the stopper 9 at the cleaning position.

When the stopper 9 is provided on the first length adjusting device 5, since the stopper 9 cannot be entangled in the first length adjusting device 5, the stopper 9 is provided outside the first length adjusting device 5 to prevent the filter 3 The first length adjusting device 5 is overwounded, and the first length adjusting device 5 is in a locked state at this time. When the stopper 9 is provided on the second length adjusting device 7, since the stopper 9 cannot be entangled in the second length adjusting device 7, the stopper 9 is provided outside the second length adjusting device 7, which can prevent the filter 3 The second length adjusting device 7 is over-wound, and the second length adjusting device 7 is in a locked state at this time.

As shown in Figure 17, in the cleaning position, along the direction close to the middle of the filter screen 3 or the middle of the heat exchanger 2, the stopper 9 and the stopper 81 are arranged in sequence, and the stopper 81 abuts against the stopper 9 at the washing position In other words, in the cleaning position, compared to the stop 9, the stop 81 is closer to the middle of the filter 3 or the middle of the heat exchanger 2, so that the stop 81 can block the stop 9 from approaching the middle of the filter 3 or the heat exchanger. 2Movement in the middle direction. When the stop block 9 and the stop block 81 are used in conjunction with the first length adjustment device 5, the stop block 9 is arranged outside the first length adjustment device 5, and the stop block 9 and the stop block 81 are arranged close to the first length adjustment device 5 In the cleaning position, the limit block 81 is located on the side of the block 9 away from the first length adjustment device 5, and the stop block 9 abuts the limit block 81 to prevent the filter screen 3 from protruding out of the first length adjustment device 5 when the first length adjustment device 5 is stressed. A length adjustment device 5, at this time the first length adjustment device 5 is in a locked state. When the stop block 9 and the stop block 81 are used in conjunction with the second length adjustment device 7, the stop block 9 is arranged outside the second length adjustment device 7, and the stop block 9 and the stop block 81 are arranged close to the second length adjustment device 7 In the cleaning position, the stopper 81 is located on the side of the stopper 9 away from the second length adjustment device 7, and the stopper 9 abuts the stopper 81 to prevent the filter screen 3 from protruding out of the second length adjustment device 7 when the second length adjustment device 7 is stressed. The second length adjustment device 7, at this time, the second length adjustment device 7 is in a locked state.

Optionally, taking the form of the first length adjusting device 5 in the form of a retractable cord reel as an example, when the second driving device 6 moves, the first length adjusting device 5 is in a locked state. Taking the form of the second length adjusting device 7 in the form of a retractable cord reel as an example, when the first driving device 4 moves, the second length adjusting device 7 is in a locked state.

The first length adjustment device 5 and/or the second length adjustment device 7 are respectively the first telescopic reel and the second telescopic reel, and the filter screen 3 is connected to the first telescopic reel and the first telescopic reel through the connecting line 32. The second retractable cord reel is taken as an example, the setting of a limit part and a limit matching part can prevent the retractable cord reel from releasing the connecting line 32 when the retractable cord reel is under force. The connecting wire 32 has a stopper 9 on the outside of the first telescopic reel and the second telescopic reel to prevent the connecting wire 32 from being excessively drawn into the first telescopic reel and the second telescopic reel.

Optionally, the structure for self-cleaning the air conditioner filter screen further includes a first limit rail 8 and a second limit rail. The first length adjustment device 5 is located in the first limit rail 8 and can slide relative to the first limit rail 8. Under the action of the second driving device 6, the first length adjustment device 5 is relative to the first limit rail 8. 8 sliding, the first limit rail 8 guides the movement of the first length adjustment device 5 close to or away from the heat exchanger 2; the second length adjustment device 7 is located in the second limit rail and can be relative to the second The limit rail slides. Under the action of the first driving device 4, the second length adjustment device 7 slides relative to the second limit rail. The second limit rail is close to or away from the second length adjustment device 7 Movement plays a guiding role.

The limit block 81 is arranged at the end of the first limit rail 8 and/or the second limit rail close to the heat exchanger 2, and the limit block 81 abuts the stop block 9 at the cleaning position.

The first limit rail 8 extends in a direction close to or away from the heat exchanger 2, so that when the first length adjustment device 5 slides in the first limit rail 8, the first length adjustment device 5 can be close to or away from the heat exchanger 2. The limit block 81 is located at the end of the first limit rail 8 close to the heat exchanger 2, so that in the cleaning position, the first length adjustment device 5 is close to the heat exchanger 2, and the block that is matched with the first length adjustment device 5 The block 9 moves with the first length adjustment device 5 to a position close to the heat exchanger 2, and the stop block 9 abuts against the limit block 81. When the first length adjustment device 5 is stressed, the filter screen 3 cannot be extended for the first length adjustment Device 5. In the working position, the first length adjusting device 5 is located at the end of the first limit rail 8 away from the heat exchanger 2. Since the end of the first limit rail 8 away from the heat exchanger 2 has no limit block 81, at this time When the first length adjusting device 5 is under force, the filter screen 3 can extend out of the first length adjusting device 5.

As shown in Fig. 14, in the working position, the first length adjusting device 5 has not moved, the first telescopic reel is located on the top of the first limit rail 8, and the top of the first limit rail 8 has no limit block against the stop. When the position is limited, the filter screen can extend out of the first length adjusting device when the force is applied, as shown in Figure 15. When the first length adjusting device 5 moves along the first limit rail 8 in the direction close to the heat exchanger and enters the bottom of the first limit rail (the first limit rail is close to the end of the heat exchanger), due to the limit block The movement of the stopper is restricted, and the filter screen cannot extend out of the first length adjusting device when the force is applied, as shown in Fig. 16 and Fig. 17.

The second limit track extends in the direction close to or away from the heat exchanger 2, so that when the second length adjustment device 7 slides in the second limit track, the second length adjustment device 7 can be close to or far away from the heat exchanger 2. The limit block 81 is located at the end of the second limit track close to the heat exchanger 2, so that in the cleaning position, the second length adjustment device 7 is close to the heat exchanger 2, and the stop block 9 matched with the second length adjustment device 7 follows The second length adjustment device 7 moves to a position close to the heat exchanger 2, and the stop block 9 abuts against the limit block 81. When the second length adjustment device 7 is stressed, the filter screen 3 cannot extend out of the second length adjustment device 7. In the working position, the second length adjusting device 7 is located at the end of the second limit rail far away from the heat exchanger 2. Since the end of the second limit rail far away from the heat exchanger 2 does not have a limit block 81, the second When the length adjusting device 7 is under force, the filter screen 3 can extend out of the second length adjusting device 7.

The embodiment of the present disclosure provides an air conditioner, including a heat exchanger 2 and a self-cleaning structure for an air conditioner filter as in any one of the embodiments of the first aspect. The filter 3 is arranged on the heat exchanger 2 One side.

The air conditioner provided by the embodiments of the present disclosure includes the self-cleaning structure of the air conditioner filter in any of the above embodiments, and therefore has the self-cleaning structure of the air conditioner filter in any of the above embodiments. All the beneficial effects of, will not be repeated here.

Optionally, the air conditioner further includes a controller, which is connected to both the first driving device 4 and the second driving device 6, and is configured to control the first driving device 4 and the first driving device 4 and the second driving device 4 in response to a cleaning instruction for cleaning the filter screen 3. One of the two driving devices 6 drives the filter screen 3 to move to the cleaning position, and drives the filter screen 3 to move away from the heat exchanger 2 after frosting and defrosting on the surface of the heat exchanger 2; controlling the first driving device 4 and The other of the second driving devices 6 drives the filter screen 3 to move to the cleaning position, and drives the filter screen 3 to move away from the heat exchanger 2 after the surface of the heat exchanger 2 is frosted and defrosted.

The controller is used to control the work of the first driving device 4 and the second driving device 6 to adjust the position of the filter screen 3 relative to the heat exchanger 2. Specifically, take the controller first to control the first driving device 4 to drive the filter screen 3 to move to abut the heat exchanger 2 and then to control the second drive device 6 to drive the filter screen 3 to move to the heat exchanger 2 as an example. When receiving the cleaning instruction for cleaning the filter screen 3, in response to the cleaning instruction for cleaning the filter screen 3, the controller controls the first driving device 4 to drive the second length adjustment device 7 to move closer to the heat exchanger 2, and the filter screen The first end 33 of 3 moves toward the heat exchanger 2 with the second length adjustment device 7, and at this time, the first length adjustment device 5 releases more filter mesh 3 to increase the unaccommodated length of the filter mesh 3. , The filter screen 3 is located at the cleaning position, and the first end 33 of the filter screen 3 and the first end 33 of the filter screen 3 can abut against the heat exchanger 2. The controller controls the air conditioner to run the cooling mode. Optionally, the air outlet is closed at this time to prevent the cooling mode from affecting the indoor temperature. The heat exchanger 2 is frosted, and the cooling capacity and frost are dissipated to the surface of the filter 3. The thickness of the frost layer is Accumulation ensures that the surface of the filter 3 is frosted. The frost formation process will squeeze the dust on the surface of the filter 3, and finally squeeze the dust on the surface of the filter 3, loosen the dust on the filter 3, and reduce the dust on the filter 3. After that, the controller controls the air conditioner to run the heating mode. Optionally, the air outlet is closed at this time to prevent the heating mode from affecting the indoor temperature. The heat exchanger 2 is defrosted, and the frost layer forms a water flow on the surface of the filter screen. The dust on the surface of the filter 3 and the heat exchanger 2 is washed away. The dusty water flows into the water receiving box and is discharged out of the outdoor through the drain pipe. The first end 33 of the filter 3 and the filter 3 are The cleaning is completed near the first end 33; after the cleaning is completed, the controller controls the first driving device 4 to drive the filter screen to move away from the heat exchanger 2. At this time, the first length adjustment device 5 retracts the released filter screen 3, and filters The net 3 is reset to the working position. At this time, the cleaning of the first end 33 and near the first end 33 of the filter net 3 is completed.

The controller then controls the second driving device 6 to drive the first length adjusting device 5 to move toward the heat exchanger 2, and the second end 34 of the filter screen 3 follows the first length adjusting device 5 to move toward the heat exchanger 2 Movement, at this time, the second length adjusting device 7 releases more filter mesh 3 to increase the unaccommodated length of the filter mesh 3. The filter mesh 3 is in the cleaning position, and the second end 34 of the filter mesh 3 is on the filter mesh 3. Near the second end 34, it can abut the heat exchanger 2. The controller controls the air conditioner to run the cooling mode. Optionally, the air outlet is closed at this time to prevent the cooling mode from affecting the indoor temperature. The heat exchanger 2 is frosted, and the cooling capacity and frost are dissipated to the surface of the filter 3. The thickness of the frost layer is Accumulation ensures that the surface of the filter 3 is frosted. The frost formation process will squeeze the dust on the surface of the filter 3, and finally squeeze the dust on the surface of the filter 3, loosen the dust on the filter 3, and reduce the dust on the filter 3. After that, the controller controls the air conditioner to run the heating mode. Optionally, the air outlet is closed at this time to prevent the heating mode from affecting the indoor temperature. The heat exchanger 2 is defrosted, and the frost layer forms a water flow on the surface of the filter screen. The dust on the surface of the filter 3 and the heat exchanger 2 is washed away. The dusty water flows into the water receiving box and is discharged outside through the drain pipe. The second end 34 of the filter 3 and the filter 3 are Close to the second end 34, the cleaning is completed; after the cleaning is completed, the controller controls the second driving device 6 to move away from the heat exchanger 2. At this time, the first length adjusting device 5 retracts the released filter 3, and the filter 3 is reset To the working position, the cleaning of the second end 34 and the vicinity of the second end 34 of the filter screen 3 is completed at this time.

In a specific embodiment, the heat exchanger 2 includes a first heat exchange section 21 and a second heat exchange section 22, and the joint of the first heat exchange section 21 and the second heat exchange section 22 forms a corner. When the L1 part of the filter screen 3 needs to be cleaned, the first driving device 4 drives the first end 33 of the filter screen 3 to move downward, and at the same time the first length adjusting device 5 moves to stretch the filter screen 3. The L1 part of the filter screen 3 is in close contact with the second heat exchange section 22 of the heat exchanger 2, and the heat exchanger 2 runs the frosting and defrosting procedure to clean the filter screen 3. After the cleaning is completed, the first driving device 4 drives the filter screen 3 to reset.

When the L2 part of the filter screen 3 needs to be cleaned, the second driving device 6 drives the second end 34 of the filter screen 3 to move downward, and at the same time the first length adjusting device 5 moves to stretch the filter screen 3. The L2 part of the filter screen 3 is in close contact with the first heat exchange section 21 of the heat exchanger 2, and the heat exchanger 2 runs the frosting and defrosting procedure to clean the filter screen 3. After the cleaning is completed, the second driving device 6 drives the filter screen 3 to reset. Optionally, the sum of the width of the L1 part of the filter screen 3 and the width of the L2 part of the filter screen 3 is greater than or equal to the used width of the filter screen 3 to ensure that all areas of the filter screen 3 stained with dust and impurities can be cleaned. The sum of the width of the L1 part of the filter 3 and the width of the L2 part of the filter 3 can be determined by the length of the connecting line 32, the distance between the filter 3 and the heat exchanger 2 at the working position, the width of the filter 3, and the Adjust the parameters such as the width of the heater 2. The L1 part and the L2 part overlap at least partially, so that the filter can be cleaned completely.

When the first length adjusting device 5 or the second length adjusting device 7 adopts the form of the first driving part and the first reel 51, the second driving part and the second reel 71, respectively, the first driving part and/ Or the second driving part can be rotated a little after it is in place, so that the filter screen 3 is pressed tighter on the heat exchanger 2.

Optionally, in the cleaning position, the filter screen 3 is close to the heat exchanger 2, and when the heat exchanger 2 is frosted, the filter screen 3 is frosted together, and the filter screen 3 is washed with the condensed water during defrosting to achieve the purpose of cleaning.

In summary, the self-cleaning structure of the air conditioner filter provided in the present application solves the problem of automatic cleaning of the air conditioner filter 3, and does not require manual disassembly and assembly of air conditioner components.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments only represent possible changes. Unless explicitly required, the individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is only limited by the appended claims.

Claims

A self-cleaning structure for air conditioner filter, which is characterized in that it comprises:

The filter screen includes a first end and a second end;

A first driving device, connected to the first end, and configured to drive the first end to move in a direction close to the heat exchanger of the air conditioner;

The first length adjusting device is connected to the second end and is configured to adjust the unaccommodated length of the filter, wherein the first driving device drives the first end to approach the changer During the direction movement of the heat exchanger, the first length adjusting device is configured to increase the unaccommodated length, so that the filter screen can move to a cleaning position abutting the heat exchanger.
The structure according to claim 1, further comprising:

The second driving device is drivingly connected to the first length adjusting device, and is configured to drive the first length adjusting device to move in a direction close to the heat exchanger.
The structure according to claim 1, characterized in that it comprises:

The second length adjustment device, the first drive device is connected to the first end portion through the second length adjustment device, and the second length adjustment device is configured to adjust the unaccommodated length and is configured to Driven by the first driving device, it moves in a direction close to the heat exchanger.
The structure according to claim 3, wherein:

The first end portion is wound on the second length adjusting device, and the second length adjusting device is configured to adjust the uncontained length by adjusting the winding length of the filter; and/or,

The second end portion is wound on the first length adjusting device, and the first length adjusting device is configured to adjust the uncontained length by adjusting the winding length of the filter net.
The structure according to claim 4, wherein:

The first length adjusting device includes a first telescopic reel, or includes a first driving part and a first reel, the second end is wound on the first reel, and the first driving part is connected to the The first reel is drivingly connected and configured to drive the first reel to rotate; and/or,

The second length adjustment device includes a second telescopic reel, or includes a second driving part and a second reel, the first end is wound on the second reel, and the second driving part is connected to the second reel. The second reel is drivingly connected and configured to drive the second reel to rotate.
The structure according to claim 5, further comprising:

A supporting wheel is arranged on the side of the first length adjustment device and/or the second length adjustment device close to the heat exchanger, and abuts against the side of the filter screen facing away from the heat exchanger, Wherein, the outer diameter of the support wheel is smaller than the outer size of the first telescopic reel, the outer size of the second telescopic reel, and the outer diameter of the first reel or smaller than the second reel. The outer diameter of the wheel.
The structure according to any one of claims 3 to 6, further comprising:

The limit part is arranged on the filter net;

The position-limiting matching portion is configured to cooperate with the position-limiting portion at the cleaning position, so that the unaccommodated length is less than or equal to a preset length.
The structure according to claim 7, further comprising:

A first limit rail, the first length adjustment device and/or the second length adjustment device are located in the first limit rail and can slide relative to the first limit rail;

A second limit rail, the second length adjusting device is located in the second limit rail and can slide relative to the second limit rail;

The limiting part includes:

The stopper is arranged outside the first length adjustment device and/or the second length adjustment device;

The limit matching part includes:

The limit block is arranged at the end of the first limit rail and/or the second limit rail close to the heat exchanger, and the limit block abuts the stop block at the cleaning position .
An air conditioner, characterized in that it comprises:

Heat exchanger; and

According to the self-cleaning structure of the air conditioner filter screen according to any one of claims 1 to 8, the filter screen is arranged on one side of the heat exchanger.
The air conditioner according to claim 9, further comprising:

The controller is connected to both the first driving device and the second driving device, and is configured to control one of the first driving device and the second driving device to drive the filter to the cleaning position in response to a cleaning instruction for cleaning the filter screen, After frosting and defrosting on the surface of the heat exchanger, the filter screen is driven to move away from the heat exchanger; the other one of the first driving device and the second driving device is controlled to be driven. The filter screen moves to the cleaning position, and drives the filter screen to move away from the heat exchanger after frosting and defrosting on the surface of the heat exchanger.