Filter screen assembly and air conditioner

By incorporating a removable filter and snap-fit ​​structure into the air conditioner filter assembly, the problem of sensor detection port blockage is solved, achieving efficient air filtration and convenient filter maintenance.

CN223636327UActive Publication Date: 2025-12-05XIAOMI TECH (WUHAN) CO LTD +2
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Patent Information

Application Number
CN202423158221.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-05
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

In the air conditioner filter assembly, the sensor's detection port is easily blocked, affecting the air quality detection effect.

Method used

A filter screen is installed between the air inlet and the sensor, and the filter screen is detachably connected to the main frame. The filter screen can be easily installed and removed through a snap-fit ​​and bayonet structure to ensure the air filtration effect.

Benefits of technology

This reduces the risk of sensor detection ports becoming clogged, improves air filtration efficiency, facilitates filter cleaning and replacement, and ensures normal sensor operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a filter screen assembly and an air conditioner, the filter screen assembly comprises a main frame body, a sensor and a filter screen, an air inlet hole is formed in the main frame body, the sensor is arranged at the downstream of the air inlet hole, the filter screen is arranged between the air inlet hole and the sensor, and the filter screen is detachably connected with the main frame body. According to the technical scheme, the filter screen assembly can reduce the risk that the detection opening of the sensor is blocked.
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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioner accessories, and particularly relates to a filter screen assembly and an air conditioner. BACKGROUND

[0002] In the related art, a filter screen assembly of an air conditioner comprises a filter screen and a sensor arranged on the filter screen, the sensor being used for detecting air quality, wherein a frame body of the filter screen is provided with an air inlet hole in communication with the sensor, and the detection port of the sensor is prone to being blocked after long-time use. CONTENT

[0003] To overcome the problems in the related art, the present disclosure provides a filter screen assembly and an air conditioner, which can reduce the risk of the detection port of the sensor being blocked.

[0004] According to a first aspect of the embodiments of the present disclosure, a filter screen assembly is provided, comprising a main frame body, a sensor and a filter screen, the main frame body being provided with an air inlet hole, the sensor being arranged downstream of the air inlet hole, the filter screen being arranged between the air inlet hole and the sensor, and the filter screen being detachably connected with the main frame body.

[0005] Optionally, a reserved port is arranged on a side of the main frame body, and the filter screen is arranged to be pullably inserted into the main frame body through the reserved port.

[0006] Optionally, a clamping port is arranged on the reserved port, and a clamping buckle is arranged on the filter screen, and when the filter screen is inserted into the main frame body, the clamping buckle is clamped in the clamping port.

[0007] Optionally, the clamping buckle comprises a main body portion, and elastic clamping tongues are arranged on opposite sides of the main body portion, and the elastic clamping tongues are arranged to be clamped in the clamping port.

[0008] Optionally, a first spacing space is arranged between the elastic clamping tongues and the main body portion, and the first spacing space is arranged to allow the elastic clamping tongues to elastically deform.

[0009] Optionally, a protruding portion is arranged on a side of the elastic clamping tongue away from the main body portion, and the protruding portion comprises a first guide inclined surface and a second guide inclined surface, and the first guide inclined surface and the second guide inclined surface gradually move away from each other in a direction approaching the main body portion.

[0010] Optionally, the protruding portion comprises a stepped surface, and the stepped surface is connected between the first guide inclined surface and the second guide inclined surface.

[0011] Optionally, an included angle between at least one of the first guide inclined surface and the second guide inclined surface and a horizontal plane is 35°-45°.

[0012] Optionally, a holding portion is further connected to the main body portion, and the holding portion comprises two holding plates which are arranged on two sides of the main body portion.

[0013] Optionally, the holding plates are configured as elastic plates, and a second spacing space is arranged between the elastic plates and the main body portion, and the second spacing space is used for elastic deformation of the elastic plates.

[0014] Optionally, the filter screen comprises a sub-frame, one of the sub-frame and the main frame is provided with a guide strip, and the other is provided with a guide groove, the guide strip and the guide groove extend along the pulling direction of the sub-frame, and the opposite sides of the sub-frame are provided with the guide strip or the guide groove.

[0015] Optionally, the filter screen comprises a sub-frame, one of the sub-frame and the main frame is provided with a positioning strip, and the other is provided with a positioning groove, the positioning strip and the positioning groove extend along a direction perpendicular to the pulling direction of the sub-frame.

[0016] Optionally, the filter screen comprises a filter screen body, and the spacing between the filter screen body and the air inlet hole is less than or equal to 4mm-6mm.

[0017] Optionally, the filter screen comprises a sub-frame and a filter screen body, the sub-frame and the filter screen body are detachably connected, or the sub-frame and the filter screen body are integrally formed.

[0018] According to a second aspect of the embodiments of the present disclosure, an air conditioner is provided, and the air conditioner comprises the filter screen assembly.

[0019] Through the above technical solution, in the filter screen assembly provided by the present disclosure, the filter screen is arranged between the air inlet hole and the sensor, so that the filter screen can filter the air flowing to the sensor, so as to avoid that the larger particulate matters (such as visible dust, etc.) in the air adhere to the detection port of the sensor, thereby reducing the risk of the detection port of the sensor being blocked. On this basis, the filter screen is detachably connected with the main frame, so that after the filter screen is used for a period of time, the filter screen can be detached from the main frame, which is conducive to cleaning or replacing the filter screen, so as to ensure the filtering effect of the filter screen on the air, thereby further reducing the risk of the detection port of the sensor being blocked. In summary, the filter screen assembly can reduce the risk of the detection port of the sensor being blocked.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure:

[0022] Figure 1 is a perspective view of a filter screen according to an exemplary embodiment of the present disclosure, in which a filter is shown mounted to a housing;

[0023] Figure 2 is another perspective view of a filter screen according to an exemplary embodiment of the present disclosure, in which a filter is shown extracted;

[0024] Figure 3 is a longitudinal sectional view of a filter screen assembly according to an exemplary embodiment of the present disclosure;

[0025] Figure 4 is an enlarged view of A in Figure 3 ;

[0026] Figure 5 is a transverse sectional view of a filter screen assembly according to an exemplary embodiment of the present disclosure;

[0027] Figure 6 is a perspective view of a filter screen according to an exemplary embodiment of the present disclosure;

[0028] Figure 7 is a sectional view of a filter screen according to an exemplary embodiment of the present disclosure;

[0029] Figure 8 is an enlarged view of B in Figure 7 ;

[0030] Figure 9 is a sectional view of a buckle according to an exemplary embodiment of the present disclosure.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 100, main screen; 110, main frame; 111, air inlet hole; 112, reserved port; 1121, bayonet; 200, sensor; 300, filter screen; 310, buckle; 311, main body; 312, elastic lugs; 313, protruding part; 3131, first guide slope; 3132, second guide slope; 3133, step surface; 314, holding part; 3141, holding plate; 321, sub-frame; 322, filter screen body; 330, first interval space; 340, second interval space; 410, guide bar; 420, guide groove; 510, positioning bar; 520, positioning groove. DETAILED DESCRIPTION

[0033] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals designate identical or similar elements in the several views. The following exemplary embodiments described therein represent the best attempts at providing a description of the various aspects of the present disclosure, and are not intended to represent that the various aspects of the present disclosure are to be limited or restricted in any way to the exemplary embodiments illustrated. Rather, they are simply examples of apparatuses and methods in accordance with some aspects of the present disclosure, as detailed in the appended claims.

[0034] In the present disclosure, unless otherwise specified, the orientation words such as "upper", "lower", "left", "right", "front", "back" are based on the directions indicated in the drawings, and "inner", "outer" refer to the inner and outer of each component relative to its own contour. The terms "first", "second" are used to distinguish one element from another element, and do not have sequential and important meanings. In addition, the following description, when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, and the present disclosure does not repeat them.

[0035] According to a first aspect of the present disclosure, with reference to Figure 1 and Figure 2 A filter screen assembly is provided, comprising a main body 110, a sensor 200 and a filter screen 300, the main body 110 is provided with an air inlet hole 111, the sensor 200 is arranged downstream of the air inlet hole 111, and the filter screen 300 is arranged between the air inlet hole 111 and the sensor 200, and the filter screen 300 is detachably connected with the main body 110.

[0036] Through the above technical solution, in the filter screen assembly provided by the present disclosure, the filter screen 300 is arranged between the air inlet hole 111 and the sensor 200, so that the filter screen 300 can filter the air flowing to the sensor 200, so as to avoid the larger particulate matters (such as visible dust, etc.) in the air from adhering to the detection port of the sensor 200, thereby reducing the risk of the detection port of the sensor 200 being blocked. On this basis, the filter screen 300 is detachably connected with the main body 110, so that after the filter screen 300 is used for a period of time, the filter screen 300 can be detached from the main body 110, which is conducive to cleaning or replacing the filter screen 300, so as to ensure the filtering effect of the filter screen 300 on the air, thereby further reducing the risk of the detection port of the sensor 200 being blocked. In summary, the filter screen assembly can reduce the risk of the detection port of the sensor 200 being blocked.

[0037] It should be noted that the sensor 200 can be any one of a TVOC sensor, a PM2.5 sensor, and a formaldehyde sensor, the filter screen 300 is used to filter larger particulate matters (such as visible dust, etc.) in the air, the filter screen assembly is installed at the return air inlet of the air conditioner, and the filter screen 300 is installed upstream of the sensor 200. In addition, the filter screen assembly can further include a main screen 100 arranged on the main frame 110, and the main screen 100 is used to filter impurities in the air flowing into the return air inlet.

[0038] In the filter screen assembly provided in the present disclosure, the detachable connection between the filter screen 300 and the main frame 110 can be achieved in any suitable manner. As an exemplary embodiment, as shown in Figures 1 to 4 , the side of the main frame 110 can be provided with a reserved opening 112, which can be used for the filter screen 300 to be pullably inserted into the main frame 110. In this way, the user can conveniently operate the filter screen 300 from the outside, and the operation is convenient. Specifically, the user can align the filter screen 300 with the reserved opening 112 and push the filter screen 300 towards the main frame 110 to install the filter screen 300 on the main frame 110, or the user can pull the filter screen 300 from the outside to pull the filter screen 300 out of the main frame 110, thereby dismounting the filter screen 300, which is conducive to cleaning or replacing the filter screen 300.

[0039] The reserved opening 112 is provided with a bayonet 1121, and the filter screen 300 can be provided with a buckle 310, which can be clamped in the bayonet 1121 when the filter screen 300 is inserted into the main frame 110. In this way, the filter screen 300 can be reliably inserted into the main frame 110 through the clamping of the buckle 310 and the bayonet 1121, so as to ensure that the filter screen 300 can be stably installed in the main frame 110.

[0040] In the filter screen assembly provided in the present disclosure, the clamping of the buckle 310 and the bayonet 1121 can be achieved in any suitable manner. As an exemplary embodiment, as shown in Figures 1 to 4 , Figure 6 , and Figure 7 , the buckle 310 can include a main body 311, and the opposite sides of the main body 311 can be respectively provided with elastic lugs 312, which can be clamped in the bayonet 1121. In this way, the elastic lugs 312 can elastically deform when passing through the bayonet 1121 to facilitate entering or leaving the main frame 110, and the elastic lugs 312 can recover the elastic deformation after passing through the bayonet 1121 to be clamped in the bayonet 1121, thereby preventing the filter screen 300 from accidentally separating from the main frame 110. In addition, the user only needs to align the elastic lugs 312 with the bayonet 1121 during operation, and then pull the elastic lugs 312, which is convenient to operate.

[0041] In the filter assembly provided by the present disclosure, in order to facilitate the plugging and unplugging of the buckle 310, as an exemplary embodiment, reference is made to Figures 1 to 4 , and Figures 6 to 8 As shown in the above, the first spacing space 330 can be provided between the elastic clamping tongue 312 and the main body part 311, and the first spacing space 330 can be used for the elastic deformation of the elastic clamping tongue 312. Specifically, when the elastic clamping tongue 312 passes through the clamping opening 1121, the elastic clamping tongue 312 can be deformed towards the main body part 311 to reduce the first spacing space 330, and after the elastic clamping tongue 312 passes through the clamping opening 1121, the elastic clamping tongue 312 can be deformed away from the main body part 311, thereby realizing the clamping of the elastic clamping tongue 312 at the clamping opening 1121.

[0042] In the filter assembly provided by the present disclosure, the elastic clamping tongue 312 can be constructed in any suitable manner, as an exemplary embodiment, reference is made to Figure 4 , and Figures 6 to 8 As shown in the above, the elastic clamping tongue 312 can be provided with a protruding part 313 on the side away from the main body part 311, and the protruding part 313 can have a first guide slope 3131 and a second guide slope 3132, and the first guide slope 3131 and the second guide slope 3132 can gradually move away in the direction close to the main body part 311. Wherein, the ends of the first guide slope 3131 and the second guide slope 3132 away from each other are respectively marked as the first end and the second end, and the distance between the first ends of the two first guide slopes 3131 is less than or equal to the height of the clamping opening 1121, so that in the process of installing the filter 300, the first end of the first guide slope 3131 will first contact the clamping opening 1121, which can facilitate the smooth extension of the first end into the clamping opening 1121, and as the filter 300 is continuously pushed in, the clamping opening 1121 will press against the first guide slope 3131 to cause the elastic clamping tongue 312 to elastically deform towards the main body part 311. In summary, the first guide slope 3131 can guide the protruding part 313 to pass through the clamping opening 1121 and enter the inside of the main frame 110. Similarly, the distance between the second ends of the two second guide slopes 3132 is also less than or equal to the height of the clamping opening 1121, so that in the process of pulling the filter 300 out of the main frame 110, the second end of the second guide slope 3132 will first contact the clamping opening 1121, which can facilitate the smooth extension of the second end into the clamping opening 1121, and as the filter 300 is continuously pulled out, the clamping opening 1121 will press against the second guide slope 3132 to cause the elastic clamping tongue 312 to elastically deform towards the main body part 311. In summary, the second guide slope 3132 can guide the protruding part 313 to pass through the clamping opening 1121 and leave the main frame 110,

[0043] Therefore, the design of the first guide slope 3131 and the second guide slope 3132 can facilitate the installation and removal of the filter 300.

[0044] Among them, at least one of the first guide slope 3131 and the second guide slope 3132 can form an angle of 35°-45° with the horizontal plane. In this way, on the one hand, it is beneficial to install and disassemble the filter screen 300, and on the other hand, when the filter screen 300 is installed in the main frame 110, the protruding part 313 can be stopped in the main frame 110 to prevent the filter screen 300 from falling out of the main frame 110, thereby ensuring the reliability of the installed filter screen 300. In the present disclosure, referring to Figure 8 The angle between the first guide slope 3131 and the horizontal plane is α, and the angle between the second guide slope 3132 and the horizontal plane is β, wherein α can be 35°-45°, such as 35°, 40°, 45°, or β can be 35°-45°, such as 35°, 40°, 45°, or both α and β can be 35°-45°, such as 35°, 40°, 45°, wherein the angles of α and β can be the same or different, and the present disclosure does not make specific limitations.

[0045] In the filter screen assembly provided by the present disclosure, the protruding part 313 can be constructed in any suitable manner, as an exemplary embodiment, referring to Figure 4 and Figures 6 to 8 The protruding part 313 can have a stepped surface 3133, which can be connected between the first guide slope 3131 and the second guide slope 3132. Among them, the stepped surface 3133 can be arranged parallel to the horizontal plane, so that the connection between the first guide slope 3131 and the second guide slope 3132 is not damaged by the bayonet 1121, thereby improving the service life and reliability of the protruding part 313.

[0046] In the filter screen assembly provided by the present disclosure, in order to facilitate pulling the main body part 311, as an exemplary embodiment, referring to Figure 4 and Figures 6 to 8 The main body part 311 can also be connected with a holding part 314, which can include two holding plates 3141, which can be arranged on both sides of the main body part 311. In this way, the user can easily hold the main body part 311 from both sides of the main body part 311 with one hand and apply force to the main body part 311 to push and pull the filter screen 300, which is convenient to operate.

[0047] In the filter screen assembly provided by the present disclosure, the holding plate 3141 can be constructed in any suitable manner, as an exemplary embodiment, referring to Figure 4 and Figures 6 to 8As shown in FIG. 12, the holding plate 3141 can be configured as an elastic plate, and a second spacing space 340 can be arranged between the holding plate 3141 and the main body part 311, and the second spacing space 340 can be used for elastic deformation of the elastic plate. The arrangement of the second spacing space 340 can facilitate the elastic plate to move away from the bayonet 1121, so that the elastic plate is separated from the bayonet 1121, thereby reducing the frictional resistance between the elastic plate and the bayonet 1121, to facilitate the user to pull out the filter screen.

[0048] In the present disclosure, the holding part 314 and the elastic clamping tongue 312 are connected to the main body part 311 through a connecting block, wherein the connecting block is arranged on the side of the elastic clamping tongue 312 close to the holding part 314, and close to the elastic clamping tongue 312, so that the elastic clamping tongue 312 and the holding part 314 can be elastically deformed, and the operation of the holding part 314 can reduce the influence on the elastic clamping tongue 312.

[0049] In the filter screen assembly provided by the present disclosure, the filter screen 300 and the auxiliary frame body 321 can be matched in any suitable manner. As an exemplary embodiment, referring to Figure 5 As shown in FIG. 13, the filter screen 300 can include an auxiliary frame body 321, one of the auxiliary frame body 321 and the main frame body 110 can be provided with a guide strip 410, and the other can be provided with a guide groove 420, the guide strip 410 and the guide groove 420 can extend along the pulling direction of the auxiliary frame body 321, and the opposite sides of the auxiliary frame body 321 can be provided with the guide strip 410 or the guide groove 420. In this way, during assembly of the filter screen 300, the guide groove 420 can guide the filter screen 300 to move along the pulling direction, to improve the user's experience. In addition, after the filter screen 300 is assembled, the guide groove 420 can also prevent the filter screen 300 from vibrating, to improve the stability of the filter screen 300.

[0050] In the filter screen assembly provided by the present disclosure, in order to improve the stability of the filter screen 300, as an exemplary embodiment, referring to Figure 3 , Figure 4 and Figure 7 As shown in FIG. 14, the filter screen 300 can include an auxiliary frame body 321, one of the auxiliary frame body 321 and the main frame body 110 can be provided with a positioning strip 510, and the other can be provided with a positioning groove 520, and the positioning strip 510 and the positioning groove 520 can extend along a direction perpendicular to the pulling direction of the auxiliary frame body 321. In this way, after the filter screen 300 is assembled, the positioning groove 520 can prevent the filter screen 300 from vibrating, to improve the stability of the filter screen 300.

[0051] In the filter screen assembly provided by the present disclosure, the filter screen 300 can be arranged at any suitable position. As an exemplary embodiment, referring to Figure 4As shown in FIG. 13, the filter screen 300 can include a filter screen body 322, and a distance between the filter screen body 322 and the air inlet hole 111 can be less than or equal to 4mm-6mm. In this way, the filter screen 300 can be arranged close to the air inlet hole 111, thereby ensuring a distance between the filter screen 300 and the sensor 200 to avoid interference between the filter screen 300 and the sensor 200, and ensuring a detection space of the sensor 200 to avoid the filter screen 300 affecting the measurement result of the sensor 200. The distance between the filter screen body 322 and the air inlet hole 111 can be less than or equal to 5mm.

[0052] The filter screen assembly provided by the present disclosure can be configured in any suitable manner. As an exemplary embodiment, the filter screen 300 can be configured as shown in FIG. 13. Figure 6 As shown in FIG. 13, the filter screen 300 can include a sub-frame 321 and a filter screen body 322, and the sub-frame 321 and the filter screen body 322 can be detachably connected or integrally formed. The detachable connection between the sub-frame 321 and the filter screen body 322 can be achieved in any suitable manner, for example, the sub-frame 321 and the filter screen body 322 can be respectively provided with first and second magnetic members to enable the sub-frame 321 and the filter screen body 322 to be magnetically attracted and coupled, or the filter screen body 322 can include a filter cloth and a mounting frame for mounting the filter cloth, and the mounting frame and the filter screen body 322 can be coupled by a clamping slot and a clamping buckle, or other suitable detachable mounting manners can be used, and the present disclosure does not make specific limitations in this regard.

[0053] According to a second aspect of the present disclosure, an air conditioner is provided, which includes the filter screen assembly described above. Therefore, the air conditioner has all the beneficial effects of the filter screen assembly described above, and the present disclosure will not be described in detail here.

[0054] In use of the filter screen assembly provided by the present disclosure, the filter screen 300 can filter impurities in the air flowing to the sensor 200 to avoid the impurities in the air adhering to the detection port of the sensor 200. After a period of use, the user only needs to pinch the main body 311 from both sides of the main body 311 with one hand and apply a force to the main body 311 to pull out the filter screen 300, so as to replace the filter screen 300, which is convenient to operate.

[0055] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0056] It should be further noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner, and the disclosure will not be repeated here for various possible combinations.

[0057] In addition, various different embodiments of the disclosure can also be combined with each other as long as they do not contradict the idea of the disclosure, and they should also be considered as disclosed by the disclosure.

Claims

1. A screen assembly, characterized by The filter screen assembly comprises a main frame, a sensor and a filter screen, the main frame is provided with an air inlet hole, the sensor is arranged downstream of the air inlet hole, and the filter screen is arranged between the air inlet hole and the sensor and detachably connected with the main frame.

2. The screen assembly of claim 1, wherein, A reserved opening is formed in the side of the main frame, and the filter screen is inserted into the main frame in a pullable manner through the reserved opening.

3. The screen assembly of claim 2, wherein, A bayonet is arranged on the reserved opening, and a buckle is arranged on the filter screen, and the buckle is clamped in the bayonet when the filter screen is inserted into the main frame.

4. The screen assembly of claim 3, wherein, The buckle comprises a main body portion, and elastic clamping tongues are arranged on opposite sides of the main body portion, and the elastic clamping tongues are used for clamping in the bayonet.

5. The screen assembly of claim 4, wherein, A first spacing space is arranged between the elastic clamping tongues and the main body portion, and the first spacing space is used for elastic deformation of the elastic clamping tongues.

6. The screen assembly of claim 4, wherein, The elastic clamping tongues are provided with protruding portions on the sides away from the main body portion, the protruding portions have first guide inclined surfaces and second guide inclined surfaces, and the first guide inclined surfaces and the second guide inclined surfaces gradually move away in the direction close to the main body portion.

7. The screen assembly of claim 6, wherein, The protruding portions have step surfaces connected between the first guide inclined surfaces and the second guide inclined surfaces.

8. The screen assembly of claim 6, wherein, The included angle between at least one of the first guide inclined surfaces and the second guide inclined surfaces and the horizontal plane is 35°-45°.

9. The screen assembly of claim 4, wherein, A holding portion is further connected to the main body portion, the holding portion comprises two holding plates, and the two holding plates are arranged on the two sides of the main body portion.

10. The screen assembly of claim 9, wherein, The holding plates are configured as elastic plates, a second spacing space is arranged between the elastic plates and the main body portion, and the second spacing space is used for elastic deformation of the elastic plates.

11. The screen assembly of claim 2, wherein, The filter screen comprises a secondary frame, one of the secondary frame and the main frame is provided with a guide strip, and the other is provided with a guide groove, the guide strip and the guide groove extend along the pulling direction of the secondary frame, and the opposite sides of the secondary frame are provided with the guide strip or the guide groove.

12. The screen assembly of claim 2, wherein, The filter screen comprises a secondary frame, one of the secondary frame and the main frame is provided with a positioning strip, and the other is provided with a positioning groove, and the positioning strip and the positioning groove extend along the direction perpendicular to the pulling direction of the secondary frame.

13. The screen assembly of claim 1, wherein, The filter screen comprises a filter screen body, and the distance between the filter screen body and the air inlet hole is less than or equal to 4mm-6mm.

14. The screen assembly of claim 1, wherein, The filter screen comprises a secondary frame and a filter screen body, the secondary frame and the filter screen body are detachably connected, or the secondary frame and the filter screen body are integrally formed.

15. An air conditioner characterized by comprising: The air conditioner comprises the filter screen assembly according to any one of claims 1-14.