阅读说明：本技术 用于空调器过滤网自清洁的结构及空调器 (A structure and air conditioner for air conditioner filter screen is automatically cleaned ) 是由 郭鑫 武凤玲 田志强 顾明亮 劳春峰 于 2020-05-25 设计创作，主要内容包括：本申请涉及空调技术领域,公开一种用于空调器过滤网自清洁的结构。过滤网,包括：过滤网,包括相连接的固定部和运动部,固定部被配置为固定于空调器本体；驱动装置,与运动部驱动连接,被配置为驱动运动部向靠近空调器的换热器的方向运动,以使过滤网运动至与换热器相贴靠的清洗位置。在清洗位置,由于过滤网贴靠在换热器表面,因此可以在对换热器进行清洁的同时实现对过滤网的清洁。本申请还公开一种空调器。(The application relates to the technical field of air conditioners and discloses a structure for automatically cleaning a filter screen of an air conditioner. A filter screen, comprising: the filter screen comprises a fixed part and a moving part which are connected, and the fixed part is configured to be fixed on the air conditioner body; and the driving device is in driving connection with the moving part and is configured to drive the moving part to move towards the direction close to the heat exchanger of the air conditioner so as to move the filter screen to a cleaning position attached to the heat exchanger. In the cleaning position, the filter screen is attached to the surface of the heat exchanger, so that the heat exchanger can be cleaned while the filter screen is cleaned. The application also discloses an air conditioner.)

1. A structure for self-cleaning of a filter screen of an air conditioner, the air conditioner including an air conditioner body, the structure comprising:

a filter screen including a fixed part and a moving part connected, the fixed part being configured to be fixed to the air conditioner body;

and the driving device is in driving connection with the moving part and is configured to drive the moving part to move towards the direction close to the heat exchanger of the air conditioner so as to move the filter screen to a cleaning position attached to the heat exchanger.

2. The structure of claim 1,

the fixed part and the moving part are two opposite end parts in the width direction of the filter screen respectively.

3. The structure of claim 1, further comprising:

the pressing piece is arranged on the moving part, and the driving device is in driving connection with the pressing piece so that the driving device is in driving connection with the moving part.

4. The structure of claim 3,

the pressing piece penetrates through the filter screen; and/or the presence of a gas in the gas,

the pressing piece is a rigid pressing piece.

5. The structure of claim 1, further comprising:

and the fixing part is arranged on the fixing part and used for fixing the fixing part on the air conditioner body.

6. The structure of claim 1,

the filter screen is a flexible filter screen.

7. The structure according to any one of claims 1 to 6,

the driving device comprises a driver which is in driving connection with the moving part and is configured to drive the moving part to reciprocate between the cleaning position and the working position, wherein the distance between the moving part and the heat exchanger in the working position is larger than the distance between the moving part and the heat exchanger in the cleaning position.

8. An air conditioner, comprising:

an air conditioner body including a heat exchanger;

the structure for self-cleaning a filter screen of an air conditioner as claimed in any one of claims 1 to 7, the filter screen being provided at one side of the heat exchanger.

9. The air conditioner according to claim 8, wherein the heat exchanger comprises:

a heat exchange pipe; and

the end cover comprises an end cover main body and an extension portion which are connected, the heat exchange tube is arranged on the end cover main body, and the driving device is arranged on the extension portion.

10. The air conditioner according to claim 8 or 9, further comprising:

and the controller is connected with the driving device and is configured to respond to a cleaning instruction for cleaning the filter screen, control the driving device to drive the filter screen to move to a cleaning position, and control the driving device to drive the filter screen to move to a working position after the surface of the heat exchanger is frosted and defrosted.

Technical Field

The application relates to the technical field of air conditioners, in particular to a self-cleaning structure for a filter screen of an air conditioner and the air conditioner.

Background

At present, when using for a long time to current air conditioner, dust in the air can enter into the air conditioner return air inlet, tiny dust carries out the air cycle through the filter screen, but the great dust particle of diameter can be attached to on the filter screen of air conditioner, because the influence of wind speed and mesh size, the dust can form chain form structure, through left and right rocking, catch more tiny dust, and the influence of humidity in the air, the viscosity that leads to the dust increases, make the dust more firm attached to the filter screen surface, it is extremely difficult to wash, when the filter screen is in the dirty state for a long time, there is bacterial growth, become virus bacterial source.

The existing filter screen cleaning mode mainly adopts a mechanical cleaning mode, wherein the number of movable parts is large, the occupied space is large, the existing filter screen cleaning mode cannot be directly applied to the existing air conditioner, the thickness of the existing air conditioner can be greatly increased, and the whole filter screen cleaning mode is not attractive. In addition, the existing cleaning mode adopting a rotating shaft drives an air conditioner filter screen to move and reset according to a cleaning path, a water tank is arranged at a fixed position to clean the filter screen with water, but the cleaning mode has a large requirement on the amount of condensed water, the amount of the condensed water is insufficient to clean the filter screen in an area with low humidity, and secondly, when heating in winter, no condensed water is generated, the filter screen cannot be cleaned, and the shortage of the amount of the condensed water becomes a fatal defect of the cleaning mode of the filter screen. A small number of the ultrasonic cleaning filters need to be arranged at multiple points, and noise of the ultrasonic cleaning filters affects use of users, so that poor user experience is caused.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a structure for self-cleaning of a filter screen of an air conditioner and the air conditioner, and aims to solve the problems that the thickness of the air conditioner is increased due to an existing mechanical cleaning mode, a rotating shaft cleaning mode has a large requirement on the amount of condensed water, and the noise of an ultrasonic mode is large.

According to a first aspect of embodiments of the present invention, there is provided a structure for self-cleaning of a filter screen of an air conditioner including an air conditioner body, the structure including: a filter screen including a fixed part and a moving part connected, the fixed part being configured to be fixed to the air conditioner body; and the driving device is in driving connection with the moving part and is configured to drive the moving part to move towards the direction close to the heat exchanger of the air conditioner so as to move the filter screen to a cleaning position attached to the heat exchanger.

According to a second aspect of embodiments of the present invention, there is provided an air conditioner including: an air conditioner body including a heat exchanger; the structure for self-cleaning the filter screen of the air conditioner as described in any one of the above embodiments, wherein the filter screen is disposed at one side of the heat exchanger.

The structure for self-cleaning of the filter screen of the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

when the filter screen needs to be cleaned, the driving device drives the moving part of the filter screen to move towards the direction close to the heat exchanger and move to the cleaning position. In the cleaning position, the filter screen is attached to the surface of the heat exchanger (i.e., the filter screen is attached to the heat exchanger), so that the filter screen can be cleaned while the heat exchanger is cleaned, in other words, the filter screen and the heat exchanger are cleaned simultaneously. On one hand, the fixed part of the filter screen is fixed on the air conditioner body, the driving device drives the motion part to move so as to clean the filter screen, the structure is simple, the defect that the thickness of the air conditioner is increased due to the existing mechanical cleaning mode is avoided, and the defects that the rotating shaft cleaning mode has great requirements on the amount of condensed water and the noise of the ultrasonic mode is large are avoided; on the other hand, when the filter screen is cleaned, the defects that the filter screen and the heat exchanger need to be cleaned respectively are overcome, and the cleaning efficiency of the filter screen and the heat exchanger is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a first view angle of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a second view angle of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a third view angle of an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a fourth view angle of an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a filter screen according to an embodiment of the present disclosure.

Reference numerals:

the air conditioner comprises an air conditioner body 10, a filter screen 20, a moving part 201, a fixed part 202, a pressing part 30, a fixing part 40, a first screw hole 401, a heat exchanger 50, a heat exchange pipe 501, an end cover 502, an end cover 5021, an extending part 5022, a vertical heat exchange section 503, a driving device 60, a motor 601, a cover plate 602, a gear 603, a rack 604 and a positioning piece 605.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

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

Referring to fig. 1 to 4, an embodiment of the present disclosure provides a self-cleaning structure for a filter screen of an air conditioner, which may be a wall-mounted air conditioner or a cabinet air conditioner. The following description will specifically take a wall-mounted air conditioner as an example.

The air conditioner comprises an air conditioner body 10 and a structure for self-cleaning of a filter screen of the air conditioner, wherein the air conditioner body 10 comprises a heat exchanger 50, a wind wheel or a fan and a shell. The structure for self-cleaning the filter screen of the air conditioner includes the filter screen 20, the filter screen 20 is disposed at one side of the heat exchanger 50, for example, the filter screen 20 is disposed above the heat exchanger 50. The casing limits the installation space, and heat exchanger 50, filter screen 20, wind wheel or fan setting are equipped with the air outlet that is linked together with the installation space on the casing, and under the effect of wind wheel or fan, the air blows off through the air outlet after filter screen 20, heat exchanger 50 in proper order.

The structure for self-cleaning a filter screen of an air conditioner includes a filter screen 20 and a driving device 60, and the filter screen 20 is used for filtering air flowing through the filter screen 20.

As shown in fig. 1 and 2, the filter screen 20 includes a fixed portion 202 and a moving portion 201 connected, the fixed portion 202 is adapted to be fixed to the air conditioner body 10, and the fixed portion 202 may be fixed to the heat exchanger 50 or to a housing or other components of the air conditioner body 10.

Optionally, as shown in fig. 2, the structure for self-cleaning the filter screen of the air conditioner further includes a fixing member 40.

The fixing member 40 fixedly connects the fixing portion 202 with the air conditioner main body 10, thereby realizing the spacing between the fixing portion 202 and the air conditioner main body 10.

The driving device 60 is drivingly connected to the moving portion 201, and is configured to drive the moving portion 201 to move in a direction approaching the heat exchanger 50 of the air conditioner, so as to move the filter screen 20 to a cleaning position abutting against the heat exchanger 50. The filter screen is in the cleaning position as in figure 4.

The filter screen 20 is driven by the driving device 60 to move to the cleaning position by adopting the form that the fixed part 202 is fixed on the air conditioner body 10 and the moving part 201 moves towards the direction close to the heat exchanger 50 under the action of the driving device 60.

Optionally, the fixing member 40 is disposed on the fixing portion 202 for fixing the fixing portion 202 to the air conditioner body 10.

Considering that the filter net 20 has a net structure, it is inconvenient to directly fix the filter net 20 to the air conditioner body 10, and thus the fixing member 40 is provided to facilitate the fixing of the fixing portion 202 to the air conditioner body 10.

The fixing member 40 extends along the fixing portion 202, for example, the fixing portion 202 is a front end portion or a rear end portion of the filter screen 20, the fixing member 40 extends along a length direction of the filter screen 20, optionally, the fixing member 40 is long and penetrates through the length direction of the filter screen 20, so as to fix the whole fixing portion 202 to the air conditioner body 10, the number of the fixing members 40 may be one or multiple, the fixing members 40 are sequentially arranged along the length direction of the filter screen 20, and thus the whole fixing portion 202 is fixed to the air conditioner body 10. As shown in fig. 2, the number of the fixing members 40 is two, and the fixing members are sequentially arranged along the length direction of the filter net 20.

The fixing member 40 and the air conditioner body 10 can be connected by a fastening member or in a welding or threaded connection or in an adhesion or clamping connection manner, the fixing member 40 is arranged on the fixing portion 202, and the fixing member 40 and the fixing portion 202 are connected or not connected, so that the fixing of the fixing portion 202 on the air conditioner body 10 is realized. Taking the fastening connection as an example, the fixing member 40 is provided with a first screw hole 401, the air conditioner body 10 is provided with a second screw hole, and the fastening member (for example, a screw or a bolt) passes through the first screw hole 401, the second screw hole and the filter screen 20, so as to fix the fixing portion 202 on the air conditioner body 10.

In the cleaning position, the filter screen 20 and the heat exchanger 50 are abutted, wherein "abutted" means that the distance between the filter screen 20 and the heat exchanger 50 is smaller than the distance between the filter screen 20 and the heat exchanger 50 when the air conditioner performs normal cooling and heating, and therefore "abutted" includes the two cases that the filter screen 20 is at least partially abutted against the surface of the heat exchanger 50 (i.e. the distance between the filter screen 20 and the heat exchanger 50 is zero) and the distance between the filter screen 20 and the heat exchanger 50 is smaller. The smaller distance between the filter screen 20 and the heat exchanger 50 means that the distance between the filter screen 20 and the heat exchanger 50 is smaller than the distance between the filter screen 20 and the heat exchanger 50 when the air conditioner normally refrigerates and heats, and the position of the filter screen 20 when the air conditioner normally refrigerates and heats is defined as the working position, so that the distance between the filter screen 20 and the heat exchanger 50 when the filter screen 20 and the heat exchanger 50 are "attached" is smaller than the distance between the filter screen 20 and the heat exchanger 50 at the working position. In other words, when the filter screen 20 needs to be cleaned, the driving device 60 drives the filter screen 20 to move toward the heat exchanger 50 and move to the cleaning position, and after the cleaning is finished, the driving device 60 drives the filter screen 20 to move away from the heat exchanger 50 and move to the working position.

In the washing position, drive arrangement 60 drives filter screen 20 and leans on mutually with heat exchanger 50, distance between filter screen 20 and the heat exchanger 50 is less, especially in the washing position, filter screen 20 compresses tightly on heat exchanger 50 surface, distance between filter screen 20 and the heat exchanger 50 is under the zero condition, can utilize heat exchanger 50's frosting to change the frosting of frosting realization filter screen 20, thereby can realize the washing to filter screen 20 when wasing heat exchanger 50, thereby the washing mode to filter screen 20 is simple, and the clean efficiency to filter screen 20 and heat exchanger 50 has been improved, user's action has been reduced, the drawback that the cleanness of filter screen 20 and heat exchanger 50's cleanness needs to go on respectively has been avoided.

Alternatively, as shown in fig. 1 and fig. 2, the fixed portion 202 and the moving portion 201 are two opposite ends of the filter screen 20, in other words, the fixed portion 202 and the moving portion 201 are disposed opposite to each other, so that the moving portion 201 is far away from the fixed portion 202 and has a strong moving capability, so that the driving device 60 can conveniently drive the moving portion 201 to reciprocate between the working position and the cleaning position, thereby reducing the requirement on the driving device 60. It should be understood that the fixed portion 202 and the moving portion 201 may not be opposite ends of the filter screen 20, for example, the fixed portion 202 and the moving portion 201 may be adjacent ends of the filter screen 20.

Alternatively, the fixed portion 202 and the moving portion 201 are two opposite ends of the filter screen 20 in the width direction, respectively, for example, one of the fixed portion 202 and the moving portion 201 is a front end of the filter screen 20, and the other is a rear end of the filter screen 20.

The heat exchanger 50 is not regularly formed in a planar structure, and the fixed portion 202 and the moving portion 201 are provided at opposite ends in the width direction of the filter net 20, so that the movement form of the filter net 20 can be simplified, and the driving device 60 can be simplified.

It is understood that the fixed portion 202 and the moving portion 201 may be both ends of the filter screen 20 in the longitudinal direction.

Optionally, as shown in fig. 5, the filter screen 20 is a flexible filter screen 20.

The flexible filter screen 20 has better deformability, so that the filter screen 20 can move to the cleaning position under the condition that the fixed part 202 is fixed on the air conditioner body 10 and the driving device 60 drives the moving part 201 to move. In other words, the flexible filter screen 20 can prevent the filter screen 20 from deforming during the driving process of the driving device 60 to the moving part 201.

Optionally, the filter screen 20 is a plastic filter screen 20, such as a nylon filter screen 20 or a polyimide filter screen 20. It is understood that the filter screen 20 may also be a metal filter screen 20 with good deformability or a filter screen 20 made of other materials.

It will be appreciated that the filter screen 20 may also be a rigid filter screen 20.

Optionally, the driving device 60 includes a driver, which is in driving connection with the moving portion 201 and configured to drive the moving portion 201 to reciprocate between the cleaning position and the working position, wherein a distance between the moving portion 201 and the heat exchanger 50 in the working position is greater than a distance between the moving portion 201 and the heat exchanger 50 in the cleaning position.

The driver drives the filter screen 20 forward or backward to move the filter screen 20 closer to or away from the heat exchanger 50, so as to reciprocate the filter screen 20, and specifically, the driving device 60 drives the filter screen 20 to reciprocate between the cleaning position and the working position. Taking the filter screen 20 above the heat exchanger 50 as an example, the driving device 60 drives the filter screen 20 to move downward to the cleaning position by forward driving, and drives the filter screen 20 to move upward by reverse driving, so that the filter screen 20 is separated from the heat exchanger 50 and moves to the working position.

When the filter screen 20 needs to be cleaned, the driving device 60 drives the filter screen 20 to move to the cleaning position, and the filter screen 20 is cleaned at the cleaning position. After the filter screen 20 is cleaned, the driving device 60 drives the filter screen 20 to move to the working position, the filter screen 20 is separated from the heat exchanger 50 at the working position, in other words, the filter screen 20 is not in contact with the heat exchanger 50 at the working position, so that the air inlet resistance is reduced when the air conditioner normally works, and the increase of the wind resistance caused by the fact that the filter screen 20 is attached to the surface of the heat exchanger 50 during normal refrigeration and heating of the air conditioner is avoided.

The number of the driving devices 60 is one or more, when the number of the driving devices 60 is more than one, the driving devices 60 are respectively arranged at two opposite sides of the moving part 201, and the driving devices 60 drive the moving part 201 to realize the smooth movement of all parts of the moving part 201.

As shown in fig. 1 and 2, the number of the driving devices 60 is two, the moving portion 201 is a front end portion of the filter net 20, and the two driving devices 60 are respectively disposed at left and right sides of the filter net 20.

Alternatively, as shown in fig. 3 and 4, the heat exchanger 50 includes a heat exchange tube 501 and an end cap 502. The end cap 502 comprises an end cap body 5021 and an extension part 5022 which are connected, the heat exchange tube 501 is arranged on the end cap body 5021, and the driving device 60 is arranged on the extension part 5022.

The refrigerant flows in the heat exchange tube 501, and the end cap body 5021 covers the heat exchange tube 501. The end cap body 5021 extends to form an extension 5022 in a direction close to the driving device 60, the driving device 60 is disposed on the extension 5022, in other words, the extension 5022 provides a mounting platform for the driving device 60, for example, the driving device 60 includes the motor 601, the extension 5022 is plate-shaped, and the motor 601 is fixed on the extension 5022. The driver 60 is secured to the extension 5022 by a fastener or by welding or by a threaded connection or by adhesive or snap-fitting.

Regarding the structure of the driving device 60, as shown in fig. 4, in the first specific embodiment, the driving device 60 includes a driver (for example, an electric motor 601 or a motor), a gear 603 and a rack 604, taking the driver as the electric motor 601 as an example, the gear 603 is in driving connection with an output shaft of the electric motor 601; the rack 604 is provided on the moving portion 201 and is engaged with the gear 603.

As shown in fig. 1 and 2, the number of the motors 601 is two, and the motors 601 are respectively located at the left side and the right side of the filter screen 20, the left end and the right end of the end cap body 5021 respectively extend upwards to form two extending parts 5022, and the two motors 601 are respectively fixed on the two extending parts 5022. An output shaft of the motor 601 is connected with a gear 603, the gear 603 is meshed with a rack 604, the rack 604 is fixedly connected with the pressing piece 30, the pressing piece 30 is connected with the moving part 201, the motor 601 drives the gear 603 to rotate, the gear 603 is meshed with the rack 604, the pressing piece 30 drives the rack 604 to move along a straight line or a curve, and the pressing piece 30 moves along the rack 604 to drive the moving part 201 to move along the rack 604.

The structure for self-cleaning the filter screen of the air conditioner further comprises a cover plate 602, the cover plate 602 limits an installation space, a gear 603 and a rack 604 are arranged in the installation space, the cover plate 602 realizes the fixation of the gear 603 and the rack 604, the movement of the rack 604 provides guidance and is limited, when the filter screen 20 is cleaned, the filter screen 20 can be tightly pressed on the surface of the heat exchanger 50, the normal use is a working position, the cover plate 602 ensures that the filter screen 20 is separated from the surface of the heat exchanger 50, and the filter screen 20 is prevented from being soaked in condensed water for a long time. The self-cleaning structure for the filter screen of the air conditioner further comprises a guide mechanism and/or a limiting mechanism, the guide mechanism comprises a guide groove arranged on the cover plate 602, the rack 604 is arranged in the guide groove, the rack 604 slides relative to the guide groove under the driving of the gear 603, and the guide groove provides a guide effect for the movement of the rack 604. The limiting mechanism is disposed on the cover plate 602, and is engaged with the rack 604 to prevent the rack 604 from sliding out of the cover plate 602 or the guide mechanism, as shown in fig. 4, the limiting mechanism can limit the limit position of the rack 604 in the sliding direction (left and right directions in fig. 4), that is, limit the limit position of the rack 604 moving leftward and the limit position of the rack 604 moving rightward in the sliding process, wherein when the rack 604 moves to the limit position of the rack moving leftward, the filter screen 20 is located at the cleaning position, and when the rack 604 moves to the limit position of the rack moving rightward, the filter screen 20 is located at the working position. The limiting mechanism can also limit the rack 604 up and down (up and down in fig. 4) to prevent the rack 604 from moving up and down.

The cover plate 602, the guide mechanism and the limiting mechanism are arranged, so that the rack 604 is limited in the vertical direction, and the gear 603 and the rack 604 are easy to maintain, disassemble and assemble.

The self-cleaning structure for the filter screen of the air conditioner further comprises a positioning member 605, the positioning member 605 may be made of metal (for example, sheet metal) or plastic, the positioning member 605 fixes the cover plate 602 on the air conditioner body 10, for example, on the extension 5022, and the positioning member 605 may fix the cover plate 602 on the air conditioner body 10 by welding, fastening, screwing, bonding, or clipping. The pressing member 30 is connected to one end of the flexible filter screen 20 and can drive the filter screen 20 to move up and down in parallel, so as to ensure the pressing and separation of the filter screen 20 and the heat exchanger 50, and the filter screen 20 can reciprocate between a cleaning position and a working position. As shown in fig. 2, the positioning member is covered on one side of the cover plate departing from the heat exchanger, the positioning member is U-shaped to define a positioning space with an opening facing the heat exchanger, the cover plate is located in the positioning space, and two ends of the positioning member are fixed on the air conditioner body.

As shown in fig. 4, the heat exchanger 50 includes a vertical heat exchange section 503, the vertical heat exchange section 503 is located at a front end portion (left side in fig. 4) of the air conditioner body 10, and corresponds to the front end portion of the filter screen 20, the vertical heat exchange section 503 is vertically disposed, and in the cleaning position, the cover plate 602 and the rack 604 are disposed near the vertical heat exchange section. An included angle between the cover plate 602 and the rack 604 and the vertical direction is not zero, in other words, the cover plate 602 and the rack 604 are arranged obliquely, so that interference between the rack 604 and the vertical heat exchange section is avoided.

In a second specific embodiment, the driving device 60 includes a driver (e.g. an electric motor 601 or a motor) including a screw rod and a nut, and taking the driver as the electric motor 601 as an example, the screw rod is in driving connection with an output shaft of the electric motor 601; the nut is sleeved on the lead screw and connected with the moving part 201.

The output shaft of the motor 601 drives the screw rod to rotate, the rotation of the screw rod realizes the linear motion of the nut, the nut is connected with the pressing piece 30, and the linear motion of the nut drives the pressing piece 30 to do linear motion, so that the moving part 201 is driven to do linear motion, and the filter screen 20 is enabled to do reciprocating motion between the cleaning position and the working position.

In a third specific embodiment, the driving device 60 includes a driver (e.g. an electric motor 601 or a motor) connecting rod, a guiding rod and a sliding block, and taking the driver as the electric motor 601 as an example, the connecting rod is in driving connection with an output shaft of the electric motor 601; the guide rod is provided with a guide groove; the slide block is slidably disposed in the guide groove, rotatably connected to the link, and drivingly connected to the moving portion 201.

The output shaft of the motor 601 drives the connecting rod to move, the connecting rod drives the sliding block to slide in the guide groove, the connecting rod is connected with the pressing piece 30, and the connecting rod drives the pressing piece 30 to move, so that the moving portion 201 is driven to reciprocate between the cleaning position and the working position.

In a fourth particular embodiment, the driving means 60 comprises a retractable push-pull part, which is drivingly connected to the moving part 201.

The push-pull portion is connected with the pressing member 30, and the stretching of the push-pull portion drives the pressing member 30 to move, so that the moving portion 201 is driven to move. The driving device 60 may be a linear motor 601, an electric push rod, an electromagnetic push rod, or the like.

In a fifth particular embodiment, the driving means 60 comprises a first magnetic engaging member and a second magnetic engaging member. The first magnetic engaging member is configured to be disposed at the heat exchanger 50; the second magnetic attraction piece is arranged on the filter screen 20 and can attract the first magnetic attraction piece to enable the filter screen 20 component to move to the cleaning position.

Optionally, the driving device 60 further includes a reset mechanism, the reset mechanism includes an elastic member, the elastic member may be a spring, a torsion spring, rubber or silica gel, and the like, one of the first magnetic attraction member and the second magnetic attraction member is an electromagnet, and the other is a magnetic metal. The electromagnet is electrified to attract the magnetic metal to drive the filter screen 20 to move to the cleaning position, and at the moment, the elastic piece deforms. After the filter screen 20 is cleaned, the electromagnet is powered off, and the filter screen 20 is reset to the working position under the action of the elastic part.

The driving device 60 may have many forms, and any driving device 60 capable of driving the filter net 20 to reciprocate between the working position and the cleaning position is within the protection scope of the present application.

Optionally, as shown in fig. 1, the structure for self-cleaning the filter screen of the air conditioner further includes a pressing member 30.

The pressing member 30 is disposed on the moving portion 201, and the driving device 60 is in driving connection with the pressing member 30, so that the driving device 60 is in driving connection with the moving portion 201. In other words, the pressing member 30 is disposed between the driving device 60 and the moving portion 201, the driving device 60 drives the moving portion 201 by driving the pressing member 30, and when the driving device 60 drives the pressing member 30 to move, the moving portion 201 moves along with the pressing member 30, so that the driving device 60 drives the filter screen 20 to reciprocate between the cleaning position and the working position.

The pressing piece 30 is arranged, on one hand, the filter screen 20 is a flexible filter screen 20, and the pressing piece 30 can enhance the rigidity of the moving part 201, so that when the driving device 60 drives the moving part 201 to move towards or away from the heat exchanger 50, the driving device 60 can drive the whole moving part 201 to move synchronously; on the other hand, the filter screen 20 is in a net shape, the driving device 60 is not easily directly connected with the filter screen 20, the pressing piece 30 is arranged, and the driving device 60 is connected with the filter screen 20 through the pressing piece 30, so that the driving device 60 is conveniently assembled with the filter screen 20.

Optionally, the hold-down element 30 penetrates the screen 20; and/or, the compression member 30 is a rigid compression member 30.

The pressing piece 30 penetrates through the filter screen 20, and after the driving device 60 is connected with the pressing piece 30, the driving device 60 can synchronously drive the whole filter screen 20 to synchronously move, and it can be understood that the pressing piece 30 also can not penetrate through the filter screen 20, and the size of the pressing piece 30 only needs to meet the requirement that the driving device 60 can drive the whole filter screen 20 to synchronously move through the pressing piece 30. Taking the example where the pressing member 30 is disposed at the front end portion of the filter screen 20, the width direction of the filter screen 20 is defined as the front-back direction, and the pressing member 30 may extend along the length direction (left-right direction in fig. 1) of the filter screen 20 and penetrate through the filter screen 20, or the pressing member 30 may extend along the length direction of the filter screen 20 but does not penetrate through the filter screen 20, for example, the length of the pressing member 30 is shorter than the length of the filter screen 20. The pressing member 30 has a rod shape and extends along the length of the filter net 20.

The pressing member 30 is a rigid pressing member 30, or the rigidity of the pressing member 30 is greater than that of the filter screen 20, so that the rigidity of the moving portion 201 can be further enhanced, and the driving device 60 can drive the filter screen 20 to move towards or away from the heat exchanger 50 in parallel.

Alternatively, the pressing member 30 penetrates through the filter net 20 in a length direction of the filter net 20.

Optionally, the driving device 60 includes a driver, which is in driving connection with the moving portion 201 and configured to drive the moving portion 201 to reciprocate between the cleaning position and the working position, wherein a distance between the moving portion 201 and the heat exchanger 50 in the working position is greater than a distance between the moving portion 201 and the heat exchanger 50 in the cleaning position.

The embodiment of the present disclosure provides an air conditioner including an air conditioner body 10 and a structure for self-cleaning of a filter screen of the air conditioner as in any one of the above embodiments, the filter screen 20 being disposed at one side of a heat exchanger 50.

The air conditioner provided by the embodiment of the present disclosure includes the structure for self-cleaning the filter screen of the air conditioner in any one of the above embodiments, so that the air conditioner has all the beneficial effects of the structure for self-cleaning the filter screen of the air conditioner in any one of the above embodiments, and details are not repeated herein.

Optionally, the air conditioner further comprises a controller.

The controller is connected to the driving device 60, and configured to control the driving device 60 to drive the filter screen 20 to move to the cleaning position in response to a cleaning command for cleaning the filter screen 20, and control the driving device 60 to drive the filter screen 20 to move to the working position after the frost is formed and removed from the surface of the heat exchanger 50.

The controller is used to control the operation of the driving device 60 to adjust the position of the filter screen 20 with respect to the heat exchanger 50. Specifically, upon receiving a cleaning instruction to clean the filter screen 20, the controller controls the driving device 60 to operate to drive the filter screen 20 to the cleaning position in response to the cleaning instruction to clean the filter screen 20. And the controller controls the air conditioner to operate in a refrigeration mode, optionally, the air outlet is closed at the moment, the refrigeration mode is prevented from influencing the indoor temperature, the heat exchanger 50 frosts, the cold energy and the frost are diffused to the surface of the filter screen 20, the frost layer thickness is accumulated to ensure that the surface of the filter screen 20 frosts, the dust on the surface of the filter screen 20 is extruded in the frost forming process, finally, the extrusion of the dust on the surface of the filter screen 20 is achieved, the dust on the filter screen 20 is loosened, the adhesive force of the dust on the filter screen 20 is reduced, and then the controller controls the air conditioner to operate in a heating mode, optionally, at the moment, the air outlet is closed, the heating mode is prevented from influencing the indoor temperature, the heat exchanger 50 is defrosted, water flow formed by a frost layer washes dust on the surface of the filter screen, the dust on the surfaces of the filter screen 20 and the heat exchanger 50 is taken away, the water flow with the dust flows into the water receiving box and is discharged out of the room through the drain pipe, and the filter screen 20 is cleaned once; after the cleaning operation, the driving device 60 resets the filter screen 20 to the working position, and a cleaning operation of the filter screen 20 is completed.

In a specific embodiment, taking the driving device comprising the gear 603 and the rack 604 as an example, the air conditioner body 10 comprises a compressor, and the operation stage of the air conditioner comprises a normal operation stage and a self-cleaning stage, wherein the filter screen 20 is in the working position in the normal operation stage, and the filter screen 20 is in the cleaning position in the self-cleaning stage. When the filter screen 20 starts to be self-cleaned, the fan and the compressor stop running, the filter screen 20 is located at a working position, namely the pressing piece 30 is located at the highest position under a limiting condition, the filter screen 20 is arched by the structural characteristics of the filter screen and is in a state of being separated from the heat exchanger 50, when the whole machine receives a self-cleaning instruction of a user, the fan and the compressor stop running, the gear 603 and the rack 604 start to move, the filter screen 20 is driven to continuously move downwards until the filter screen 20 is completely tensioned and completely attached to the surface of the heat exchanger 50, the compressor starts to run, the heat exchanger 50 frosts, then the surface of the filter screen 20 starts to frost, when a frost layer reaches a certain thickness, the frost is dissolved, and finally the filter screen 20 and the heat exchanger 50 are cleaned simultaneously; after the cleaning is finished, the filter screen 20 is reset, the gear 603 and the rack 604 move to drive the filter screen 20 to continuously move upwards, the limit is finally reached, the filter screen returns to the working position, and the self-cleaning process of the filter screen 20 is finally finished.

In the application, the filter screen 20 is cleaned by controlling the driving device 60 through the controller, the traditional mechanical cleaning of the filter screen 20 is abandoned, and the frosting and defrosting of the surface of the filter screen 20 are driven by the frosting and defrosting of the heat exchanger 50 to clean the surface of the filter screen 20, so that a dust collecting and collecting box can be removed, the dust is directly discharged to the outside through the water receiving box and the drain pipe, the user is ensured not to need redundant actions, and the cleaning method is simple and convenient; and adopt flexible filter screen 20 for filter screen 20 can better adapt to the error of heat exchanger 50 shape, pastes the heat exchanger 50 surface completely, and final clean effect is better, and optionally, the shape and the size of filter screen 20 respectively with the shape and the size looks adaptation of heat exchanger 50, make in the washing position, filter screen 20 can fully paste with heat exchanger 50 and lean on, realize the washing to whole filter screen 20.

To sum up, carry out the cleanness on filter screen 20 surface through the form that filter screen 20 frosted in this application, its clean process is accomplished in step with the clean process on heat exchanger 50 surface, and is simple swift. Adopt two processes of filter screen 20 surface frosting to clean the dust on filter screen 20 surface, when needs clean filter screen 20 surface, drive filter screen 20 moves to the cleaning position, filter screen 20 tightly attaches on heat exchanger 50 according to heat exchanger 50 surface shape, guarantee stretching on frost layer, finally wash and disinfect through frosting, the dust on filter screen 20 surface, the water melting after the final frost flows to the water collector, the flow direction is outdoor, need not the user and moves. The driving device 60 is simple in structure, the filter screen 20 is good in shape adapting to the heat exchanger 50, high in adaptability and convenient to use by a user, the filter screen 20 can be cleaned quickly, the cleaning effect is good, and the reliability is high; and the structure for self-cleaning the filter screen of the air conditioner occupies a small space, does not influence the air inlet and outlet volume of the air conditioner, does not increase the thickness of the whole machine, does not generate appearance influence, and is easy to assemble and disassemble.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. 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 may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.