Filter structures, ventilation devices and air conditioners

Abstract

The present invention provides a filtering structure, a ventilation device and an air conditioner, wherein the filtering structure comprises: a cover body assembly, the cover body assembly has a ventilation area for air flow; a filter screen, the filter screen is adjustably arranged to have a shielding position for shielding the ventilation area and a storage position for avoiding the ventilation area; a cover plate assembly, the filtering structure has a disassembly and assembly space for disassembling and assembling the filter screen, the cover plate assembly is arranged at the disassembly and assembly space, and at least a part of the cover plate assembly is movably arranged so that the cover plate assembly has a first shielding state and a second shielding state; wherein, when the cover plate assembly is in the first shielding state, the cover plate assembly forms a transition channel for the filter screen to move between the shielding position and the storage position; when the cover plate assembly is in the second shielding state, the cover plate assembly forms a disassembly and assembly channel for the filter screen to be moved out from the inner side of the cover body assembly, thereby solving the problem that the air conditioner in the prior art is difficult to disassemble and assemble the filter screen.

Description

Technical Field

[0001] The invention relates to the field of air conditioning, and in particular to a filtering structure, a ventilation device and an air conditioner. Background Art

[0002] At present, air conditioners are becoming more and more intelligent. They can switch modes, adjust gears and even play songs with just one sentence, which greatly facilitates customers.

[0003] However, most of today's air conditioners are not equipped with an automatic filter cleaning function, and customers often have to manually remove the filter themselves, causing great trouble to customers. Summary of the invention

[0004] The main purpose of the present invention is to provide a filtering structure, a ventilation device and an air conditioner to solve the problem that the filter screen of the air conditioner in the prior art is difficult to disassemble and assemble.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a filtering structure is provided, comprising: a cover body assembly, the cover body assembly having a ventilation area for air flow; a filter screen, the filter screen position is adjustably arranged to have a shielding position for shielding the ventilation area and a storage position for avoiding the ventilation area; a cover plate assembly, the filtering structure has a disassembly and assembly space for disassembling and assembling the filter screen, the cover plate assembly is arranged at the disassembly and assembly space, at least part of the cover plate assembly is movably arranged so that the cover plate assembly has a first shielding state and a second shielding state; wherein, when the cover plate assembly is in the first shielding state, the cover plate assembly forms a transition channel for the filter screen to move between the shielding position and the storage position; when the cover plate assembly is in the second shielding state, the cover plate assembly forms a disassembly and assembly channel for the filter screen to be moved out from the inner side of the cover body assembly.

[0006] Furthermore, the disassembly and assembly channel is arranged opposite to a storage track for movement of the filter screen, so that the filter screen can be moved from the storage position through the disassembly and assembly channel to the outside of the cover assembly.

[0007] Furthermore, the cover plate assembly includes: a cover plate body, the cover plate body includes a first shielding plate for forming a transition channel and a second shielding plate for forming a disassembly and assembly channel; a track switching plate, the track switching plate position is adjustably set so that the track switching plate has a first shielding position and a second shielding position; wherein, when the track switching plate is in the first shielding position, the track switching plate and the first shielding plate are spliced ​​to enclose the transition channel; when the track switching plate is in the second shielding position, the track switching plate and the second shielding plate are spliced ​​to enclose the disassembly and assembly channel.

[0008] Furthermore, the cover plate body also includes: a track plate, which is located on a side of the track switching plate away from the first shielding plate, and the second shielding plate is arranged opposite to the track plate; wherein, when the track switching plate is in the first shielding position, one end of the track switching plate away from the first shielding plate is connected to the track plate; when the track switching plate is in the second shielding position, the track switching plate is arranged opposite to the track plate.

[0009] Furthermore, the cover plate assembly also includes: a switching drive component, which is connected to the track switching plate to drive the track switching plate to move to the first shielding position or the second shielding position.

[0010] Furthermore, the plate surface of the first shielding plate used to enclose the transition channel is an arc-shaped surface; and / or the plate surface of the second shielding plate used to enclose the disassembly and assembly channel is a plane; and / or the track switching plate is a straight plate.

[0011] Furthermore, the cover body also includes a connecting plate, which is connected to the first shielding plate and is arranged opposite to the second shielding plate; and / or a limiting flange is arranged on the cover body, and the cover body is hung on the cover body assembly through the limiting flange.

[0012] Furthermore, one end of the second shielding plate close to the filter screen is located on a side of the first shielding plate close to the filter screen.

[0013] Furthermore, the filtering structure also includes: a filter drive assembly, which is driven and connected to the filter screen to drive the filter screen to move; wherein, when the cover assembly is in a first blocking state, the filter screen moves between a blocking position and a storage position under the driving action of the filter drive assembly; when the cover assembly is in a second blocking state, the filter screen is moved from the storage position through the disassembly and assembly space under the driving action of the filter drive assembly.

[0014] Furthermore, the filter drive assembly also includes: a drive shaft, a gear portion is provided on the drive shaft, a rack portion meshing with the gear portion is provided on the filter screen; and a filter drive motor, an output shaft of the filter drive motor is connected to the drive shaft.

[0015] Furthermore, the gear portion is arranged on the outer circumferential surface of the driving shaft, and the gear portion extends from one end of the driving shaft to the other end of the driving shaft.

[0016] Furthermore, the filtering structure further comprises: a detection component, which is arranged at the end of the predetermined track, so that when the filter net moves to a predetermined position, the detection component sends a removal signal for removing the filter net.

[0017] According to another aspect of the present invention, a ventilation device is provided, comprising: a support frame having an air duct cavity; the above-mentioned filter structure, the filter structure is arranged on the support frame, and the ventilation area of ​​the filter structure is connected to the air duct cavity.

[0018] Furthermore, the support frame is provided with a blocking track corresponding to the blocking position of the filtering structure and a storage track corresponding to the storage position of the filtering structure, and at least part of the filter net is located in the blocking track and / or the storage track to move along the blocking track and / or the storage track.

[0019] According to another aspect of the present invention, an air conditioner is provided, comprising: a casing, on which a first vent is arranged; and the above-mentioned ventilation device, wherein the ventilation device is arranged at the first vent.

[0020] Furthermore, a second vent is provided at the bottom of the casing, and the first vent is located at the top of the casing, and the air flow in the casing enters through the first vent and flows out through the second vent, or the air flow in the casing enters through the second vent and flows out through the first vent.

[0021] According to the technical solution of the present invention, the filter structure includes a cover assembly, a filter screen and a cover plate assembly. The position-adjustable filter screen has a shielding position for shielding the ventilation area for air flow and a storage position for avoiding the ventilation area. The filter structure has a disassembly and assembly space for disassembling the filter screen. The cover plate assembly is arranged at the disassembly and assembly space. At least part of the cover plate assembly is movably arranged so that the cover plate assembly has a first shielding state and a second shielding state. When the cover plate assembly is in the first shielding state, the cover plate assembly encloses a transition channel for the filter screen to move between the shielding position and the storage position; when the cover plate assembly is in the second shielding state, the cover plate assembly encloses a disassembly and assembly channel for the filter screen to be moved out from the inner side of the cover body assembly. When the filter screen needs to be disassembled, the filter screen only needs to be moved in or out of the disassembly and assembly channel. The operation is simple and convenient, which solves the problem that it is difficult to disassemble the filter screen in the air conditioner in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A structural schematic diagram showing a cover plate assembly in a filtering structure according to the present invention when the cover plate assembly is in a first shielding state;

[0024] Figure 2 Shows Figure 1 An enlarged view of a local A of the filtering structure in FIG.

[0025] Figure 3 A structural schematic diagram showing a cover plate assembly in a filtering structure according to the present invention when the cover plate assembly is in a second shielding state;

[0026] Figure 4 Shows Figure 3An enlarged view of a part B of the filtering structure in FIG.

[0027] Figure 5 An exploded view of a ventilation device according to the present invention is shown;

[0028] Figure 6 Shows Figure 5 A schematic diagram of the structure of the filter in the ventilation device; and

[0029] Figure 7 A structural schematic diagram of an air conditioner according to the present invention is shown.

[0030] The above drawings include the following reference numerals:

[0031] 110. cover assembly; 111. ventilation area;

[0032] 120, filter screen; 121, rack portion;

[0033] 130, cover plate assembly; 131, cover plate body; 1311, first shielding plate; 1312, second shielding plate; 1313, track plate; 1314, connecting plate; 1315, limiting flange; 132, track switching plate; 133, switching drive component;

[0034] 140, filter drive assembly; 141, drive shaft; 1411, gear unit; 142, filter drive motor;

[0035] 150. Detection components;

[0036] 160, storage track; 170, disassembly and assembly channel; 180, transition channel; 190, shielding track;

[0037] 210, support frame;

[0038] 30. Air conditioner; 310. Casing; 320. Display screen. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] Please refer to Figures 1 to 7 The filtering structure includes a cover body assembly 110 , a filter screen 120 and a cover plate assembly 130 .

[0041] The cover assembly 110 has a ventilation area 111 for air flow.

[0042] The filter 120 is adjustable in position to have a shielding position for shielding the ventilation area 111 and a storage position for avoiding the ventilation area 111 .

[0043] The filter structure has a disassembly and assembly space for disassembling the filter screen 120, and the cover assembly 130 is arranged in the disassembly and assembly space. At least part of the cover assembly 130 is movably arranged so that the cover assembly 130 has a first shielding state and a second shielding state.

[0044] Figure 1 A structural schematic diagram is shown when the cover plate assembly 130 in the filtering structure according to the present invention is in the first shielding state. Figure 2 Shows Figure 1 An enlarged view of a part A of the filter structure in FIG. Figure 1 and Figure 2 When the cover assembly 130 is in the first shielding state, the cover assembly 130 forms a transition channel 180 for the filter screen 120 to move between the shielding position and the storage position.

[0045] Figure 3 A structural schematic diagram is shown when the cover plate assembly 130 in the filtering structure according to the present invention is in the second shielding state. Figure 4 Shows Figure 3 An enlarged view of the filter structure in FIG. Figure 3 and Figure 4 When the cover assembly 130 is in the second shielding state, the cover assembly 130 forms a disassembly passage 170 for the filter 120 to be removed from the inner side of the cover assembly 110. When the filter 120 needs to be disassembled, the filter 120 only needs to be moved into or out of the disassembly passage 170, which is simple and convenient to operate, and solves the problem that it is difficult to disassemble the filter 120 in the air conditioner 30 in the prior art.

[0046] In some embodiments, the angle range between the filter 120 in the shielding position and the filter 120 in the storage position is greater than or equal to 60° and less than or equal to 180°.

[0047] In some embodiments, the filter 120 includes a frame and a filter material disposed on the frame that can be used to filter the gas passing therethrough. The frame can be made of an elastic material so that the filter 120 can fit the track and move smoothly without jamming.

[0048] The disassembly passage 170 is disposed opposite to the storage track 160 for the filter 120 to move, so that the filter 120 can be moved from the storage position to the outside of the cover assembly 110 through the disassembly passage 170 .

[0049] Figure 7 FIG. 1 is a schematic structural diagram of a cover plate assembly 130 in a filter structure according to the present invention. Figure 1 and Figure 7The cover plate assembly 130 includes a cover plate body 131 and a track switching plate 132 .

[0050] The cover plate body 131 includes a first shielding plate 1311 for forming the transition channel 180 and a second shielding plate 1312 for forming the disassembly channel 170 .

[0051] The track switch plate 132 is adjustable in position so that the track switch plate 132 has a first shielding position and a second shielding position.

[0052] See also Figure 1 When the track switching plate 132 is in the first shielding position, the track switching plate 132 and the first shielding plate 1311 are spliced ​​to enclose a transition channel 180 .

[0053] See also Figure 3 When the track switching plate 132 is in the second shielding position, the track switching plate 132 and the second shielding plate 1312 are spliced ​​to enclose a disassembly and assembly channel 170 .

[0054] See also Figure 3 The cover plate body 131 also includes a track plate 1313 .

[0055] The track plate 1313 is located on a side of the track switching plate 132 away from the first shielding plate 1311 , and the second shielding plate 1312 is arranged opposite to the track plate 1313 .

[0056] See also Figure 1 When the track switching plate 132 is in the first shielding position, one end of the track switching plate 132 away from the first shielding plate 1311 is connected to the track plate 1313 .

[0057] See also Figure 3 When the track switching plate 132 is in the second shielding position, the track switching plate 132 is arranged opposite to the track plate 1313.

[0058] Figure 5 An exploded view of a ventilation device according to the present invention is shown. Figure 5 The cover plate assembly 130 also includes a switching driving component 133 .

[0059] The switching driving component 133 is connected to the track switching plate 132 to drive the track switching plate 132 to move to the first shielding position or the second shielding position.

[0060] In the first embodiment, the plate surface of the first shielding plate 1311 used to enclose the transition channel 180 is an arc-shaped surface.

[0061] In the second embodiment, the plate surface of the second shielding plate 1312 used to enclose the disassembly and assembly passage 170 is a plane.

[0062] In the third embodiment, the track switch plate 132 is in a straight plate shape.

[0063] See also Figure 5 The cover body 131 further includes a connecting plate 1314 , which is connected to the first shielding plate 1311 , and the connecting plate 1314 is arranged opposite to the second shielding plate 1312 .

[0064] See also Figure 1 and Figure 5 A limiting flange 1315 is provided on the cover body 131 , and the cover body 131 is hung on the cover assembly 110 through the limiting flange 1315 .

[0065] One end of the second shielding plate 1312 close to the filter screen 120 is located on a side of the first shielding plate 1311 close to the filter screen 120 .

[0066] See also Figure 5 The filtering structure also includes a filter drive assembly 140 .

[0067] The filter drive assembly 140 is drivingly connected to the filter screen 120 to drive the filter screen 120 to move.

[0068] See also Figure 1 When the cover assembly 130 is in the first shielding state, the filter screen 120 moves between the shielding position and the storage position under the driving action of the filter driving assembly 140.

[0069] See also Figure 3 When the cover assembly 130 is in the second shielding state, the filter screen 120 is moved out from the storage position through the disassembly space under the driving action of the filter drive assembly 140.

[0070] See also Figure 5 The filter drive assembly 140 also includes a drive shaft 141 and a filter drive motor 142 .

[0071] Figure 6 Shows Figure 5 A schematic diagram of the structure of the filter screen 120 in the ventilation device. Figure 6 The driving shaft 141 is provided with a gear portion 1411 , and the filter screen 120 is provided with a rack portion 121 meshing with the gear portion 1411 .

[0072] The output shaft of the filter driving motor 142 is connected to the driving shaft 141 .

[0073] The gear portion 1411 is disposed on the outer circumferential surface of the driving shaft 141 , and the gear portion 1411 extends from one end of the driving shaft 141 to the other end of the driving shaft 141 .

[0074] See also Figure 5 The filtering structure also includes a detection component 150.

[0075] See also Figure 1 The detection component 150 is disposed at the end of the predetermined track, so that when the filter 120 moves to the predetermined position, the detection component 150 sends a removal signal for removing the filter 120. In other words, the detection component 150 can be used to control the switching drive component 133 and the filter drive motor 142, for example, to control the time and direction of the switching drive component 133 to rotate.

[0076] In some embodiments, the detection device may be a micro switch or a sensor.

[0077] In some embodiments, the ventilation device includes a support frame 210 and a filtering structure of the above-mentioned embodiment.

[0078] The support frame 210 has an air duct cavity. The filter structure is arranged on the support frame 210, and the ventilation area 111 of the filter structure is connected with the air duct cavity.

[0079] The support frame 210 is provided with a shielding track 190 corresponding to the shielding position of the filtering structure and a storage track 160 corresponding to the storage position of the filtering structure. At least part of the filter net 120 is located in the shielding track 190 and / or the storage track 160 so as to move along the shielding track 190 and / or the storage track 160.

[0080] The air conditioner 30 includes a casing 310 and the ventilation device of the above-mentioned embodiment.

[0081] A first vent is provided on the housing 310. A ventilation device is provided at the first vent.

[0082] A second vent is provided at the bottom of the casing 310, and the first vent is located at the top of the casing 310. The airflow in the casing 310 enters through the first vent and flows out through the second vent, or the airflow in the casing 310 enters through the second vent and flows out through the first vent.

[0083] In some embodiments, the switching drive component 133 may include a switching drive motor and a switching drive shaft, wherein the output shaft of the switching drive motor is connected to the switching drive shaft, and the switching drive shaft is driven to rotate around the output shaft of the switching drive motor through the rotation of the switching drive motor. The switching drive shaft is connected to the track switching plate 132 to drive the track switching plate 132 to rotate around the output shaft of the switching drive motor through the switching drive shaft.

[0084] When the filter 120 needs to be removed:

[0085] See also Figure 1When the filter 120 needs to be taken out from the disassembly opening, the user operates on the display screen 320 on the surface of the air conditioner 30, and the detection component 150 receives the signal of "remove the filter 120" and controls the filter drive motor 142 to rotate forward to drive the filter 120 to move from the blocking position to the storage position; at the same time, the switching drive motor drives the track switching plate 132 to the first blocking position to form a transition channel 180, and the filter 120 moves in the filter channel until the filter 120 moves to the end of the predetermined track and touches the detection component 150.

[0086] See also Figure 3 When the filter 120 moves to the end of the predetermined track and touches the detection component 150, the detection component 150 controls the filter drive motor 142 to reverse, so as to drive the filter 120 to move out from the storage position through the disassembly space; at the same time, the switch drive motor drives the track switching plate 132 to the second blocking position to enclose the disassembly channel 170, and the filter 120 moves in the disassembly channel 170. The filter 120 withdraws from the top of the cover assembly 130. During the entire process of removing the filter 120, the user does not directly operate the filter 120, but only controls it through the display screen 320, so that the filter 120 is automatically removed and easy to operate.

[0087] When you need to install filter 120:

[0088] See also Figure 3 , put the filter 120 into the filter channel, the user operates on the display screen 320, the detection component 150 receives the signal of "installing the filter 120", and the detection component 150 controls the switching drive motor to drive the track switching plate 132 to the second blocking position to enclose the disassembly channel 170, and the filter 120 moves in the disassembly channel 170; at the same time, the detection component 150 controls the filter drive motor 142 to rotate forward to drive the filter 120 to reach the storage position through the disassembly space, until the filter 120 moves to the end of the predetermined track and touches the detection component 150. During the entire process of installing the filter 120, the user does not directly operate the filter 120, but only controls it through the display screen 320, so that the filter 120 is automatically removed, which is easy to operate.

[0089] See also Figure 1 The detection component 150 controls the filter drive motor 142 to reverse to drive the filter 120 to move from the storage position to the shielding position; at the same time, the switching drive motor is controlled to drive the track switching plate 132 to be in the first shielding position to form a transition channel 180, and the filter 120 moves in the filter channel until the filter 120 reaches the shielding position.

[0090] In some embodiments, different rotation numbers of the switching drive motor and the filter drive motor 142 in different operation processes can be set in advance. When the user performs different operations on the display screen 320 of the air conditioner 30, the detection component 150 can control the rotation numbers of the switching drive motor and the filter drive motor 142 according to the pre-set number of rotations. The user only needs to take out the filter 120 or put the filter 120 into the disassembly and assembly channel 170. For example, when the filter drive motor 142 drives the filter 120 from the blocking position to the storage position, it needs to rotate 20 circles clockwise, and when the filter drive motor 142 drives the filter 120 to move out of the disassembly and assembly channel from the storage position, it needs to rotate 15 circles counterclockwise. When the user performs the "disassemble the filter 120" operation on the display screen 320, the detection component 150 automatically controls the filter drive motor 142 to rotate 20 circles clockwise and then rotate 15 circles counterclockwise.

[0091] In some embodiments, the time taken for the switching drive motor and the filtering drive motor 142 to rotate different numbers of times in different operating processes can be set in advance. When the user makes different operations on the display screen 320 of the air conditioner 30, the detection component 150 can control the rotation time of the switching drive motor and the filtering drive motor 142 according to the time set in advance. The user only needs to take out the filter 120 or put the filter 120 into the disassembly and assembly channel 170.

[0092] For example: when the filter drive motor 142 drives the filter 120 from the blocking position to the storage position, it needs to rotate clockwise for 6 seconds. When the filter drive motor 142 drives the filter 120 to move out of the disassembly channel from the storage position, it needs to rotate counterclockwise for 4 seconds. When the user performs the "remove the filter 120" operation on the display screen 320, the detection component 150 automatically controls the filter drive motor 142 to rotate clockwise for 6 seconds and then counterclockwise for 4 seconds.

[0093] In some embodiments, the detection component 150 may also display a signal on the display screen 320 when the filter 120 contacts the detection component 150 , and the user may select further operations until the filter 120 is removed or the filter 120 is placed in the disassembly channel 170 .

[0094] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0095] The filter structure includes a cover assembly 110, a filter screen 120 and a cover assembly 130. The position-adjustable filter screen 120 has a shielding position for shielding a ventilation area 111 for air flow and a storage position for avoiding the ventilation area 111. The filter structure has a disassembly and assembly space for disassembling and assembling the filter screen 120. The cover assembly 130 is arranged at the disassembly and assembly space. At least a part of the cover assembly 130 is movably arranged so that the cover assembly 130 has a first shielding state and a second shielding state. When the cover assembly 130 is in the first shielding state, the cover assembly 130 encloses a transition channel 180 for the filter screen 120 to move between the shielding position and the storage position; when the cover assembly 130 is in the second shielding state, the cover assembly 130 encloses a disassembly and assembly channel 170 for the filter screen 120 to move out from the inner side of the cover assembly 110. When the filter 120 needs to be disassembled, the filter 120 only needs to be moved in or out of the disassembly passage 170. The operation is simple and convenient, and the problem that the air conditioner 30 in the prior art is difficult to disassemble the filter 120 is solved.

[0096] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "first", "second", "third", "fourth", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0097] In the description of the embodiments of the present invention, it should be noted that the terms "up", "down", "left", "right", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0098] It should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0099] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", or "in a first embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering structure, characterized in that: include: A cover assembly (110), wherein the cover assembly (110) has a ventilation area (111) for airflow: A filter screen (120), wherein the position of the filter screen (120) is adjustable so as to have a shielding position for shielding the ventilation area (111) and a storage position for avoiding the ventilation area (111); a cover plate assembly (130), the filter structure having a disassembly and assembly space for disassembling and assembling the filter screen (120), the cover plate assembly (130) being arranged at the disassembly and assembly space, and at least a part of the cover plate assembly (130) being movably arranged so that the cover plate assembly (130) has a first shielding state and a second shielding state; Wherein, when the cover plate assembly (130) is in the first shielding state, the cover plate assembly (130) encloses a transition channel (180) for the filter screen (120) to move between the shielding position and the storage position; When the cover assembly (130) is in the second shielding state, the cover assembly (130) forms a disassembly passage (170) for the filter screen (120) to be removed from the inner side of the cover assembly (110); The cover plate assembly (130) comprises a cover plate body (131) and a track switching plate (132); the cover plate body (131) comprises a first shielding plate (1311) for forming the transition channel (180) and a second shielding plate (1312) for forming the disassembly channel (170); the track switching plate (132) is adjustable in position so that the track switching plate (132) has a first shielding position and a second shielding position; When the track switching plate (132) is in the first shielding position, the track switching plate (132) and the first shielding plate (1311) are spliced ​​to enclose the transition channel (180); when the track switching plate (132) is in the second shielding position, the track switching plate (132) and the second shielding plate (1312) are spliced ​​to enclose the disassembly and assembly channel (170).

2. The filtering structure according to claim 1, characterized in that: The disassembly channel (170) is arranged opposite to a storage track (160) for the filter screen (120) to move, so that the filter screen (120) can be moved from the storage position through the disassembly channel (170) to the outside of the cover assembly (110).

3. The filtering structure according to claim 1, characterized in that: The cover plate body (131) further comprises: A track plate (1313), the track plate (1313) being located on a side of the track switching plate (132) away from the first shielding plate (1311), and the second shielding plate (1312) being arranged opposite to the track plate (1313); Wherein, when the track switching plate (132) is in the first shielding position, an end of the track switching plate (132) away from the first shielding plate (1311) is connected to the track plate (1313); When the track switching plate (132) is in the second shielding position, the track switching plate (132) and the track plate (1313) are arranged opposite to each other.

4. The filtering structure according to claim 1, characterized in that: The cover plate assembly (130) further includes: A switching drive component (133), wherein the switching drive component (133) is connected to the track switching plate (132) to drive the track switching plate (132) to move to the first shielding position or the second shielding position.

5. The filtering structure according to claim 1, characterized in that: The plate surface of the first shielding plate (1311) used to enclose the transition channel (180) is an arc-shaped surface; and / or The plate surface of the second shielding plate (1312) used to enclose the assembly and disassembly passage (170) is a plane; and / or The track switching plate (132) is in the shape of a straight plate.

6. The filtering structure according to claim 1, characterized in that: The cover plate body (131) further comprises a connecting plate (1314), wherein the connecting plate (1314) is connected to the first shielding plate (1311), and the connecting plate (1314) is arranged opposite to the second shielding plate (1312); and / or A limiting flange (1315) is provided on the cover plate body (131), and the cover plate body (131) is hung on the cover body assembly (110) via the limiting flange (1315).

7. The filtering structure according to claim 1, characterized in that: One end of the second shielding plate (1312) close to the filter screen (120) is located on a side of the first shielding plate (1311) close to the filter screen (120).

8. The filtering structure according to claim 1, characterized in that: The filtering structure also includes: A filter drive assembly (140), the filter drive assembly (140) being drivingly connected to the filter screen (120) to drive the filter screen (120) to move; Wherein, when the cover plate assembly (130) is in the first shielding state, the filter screen (120) moves between the shielding position and the storage position under the driving action of the filter drive assembly (140); When the cover plate assembly (130) is in the second shielding state, the filter screen (120) is moved out from the storage position through the disassembly and assembly space under the driving action of the filter drive assembly (140).

9. The filtering structure according to claim 8, characterized in that: The filter drive assembly (140) further includes: A driving shaft (141), wherein the driving shaft (141) is provided with a gear portion (1411), and the filter screen (120) is provided with a rack portion (121) meshing with the gear portion (1411); A filter drive motor (142), wherein an output shaft of the filter drive motor (142) is connected to the drive shaft (141).

10. The filter structure according to claim 9, characterized in that: The gear portion (1411) is disposed on the outer peripheral surface of the drive shaft (141), and the gear portion (1411) extends from one end of the drive shaft (141) to the other end of the drive shaft (141).

11. The filter structure according to any one of claims 1 to 10, characterized in that: The filtering structure also includes: A detection component (150) is arranged at the end of a predetermined track so that when the filter net (120) moves to a predetermined position, the detection component (150) sends a removal signal for removing the filter net (120).

12. A ventilation device, characterized in that: include: A support frame (210), wherein the support frame (210) has an air duct cavity; The filter structure according to any one of claims 1 to 11, wherein the filter structure is arranged on the support frame (210), and the ventilation area (111) of the filter structure is connected to the air duct cavity.

13. The ventilation device according to claim 12, characterized in that The support frame (210) is provided with a shielding track (190) corresponding to the shielding position of the filter structure and a storage track (160) corresponding to the storage position of the filter structure, and at least part of the filter net (120) is located in the shielding track (190) and / or the storage track (160) so as to move along the shielding track (190) and / or the storage track (160).

14. An air conditioner, characterized in that: include: A casing (310), wherein the casing (310) is provided with a first vent; The ventilation device as described in claim 12 or 13, wherein the ventilation device is arranged at the first ventilation opening.

15. The air conditioner according to claim 14, characterized in that: A second vent is provided at the bottom of the casing (310), and the first vent is located at the top of the casing (310); the airflow in the casing (310) enters through the first vent and flows out through the second vent, or the airflow in the casing (310) enters through the second vent and flows out through the first vent.

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