CN210891978U - Air purifier - Google Patents

Abstract

The utility model provides an air purifier, casing (2) that have holding chamber (21) including filter screen subassembly (1) and inside, set up opening (22) that can supply filter screen subassembly (1) business turn over on the lateral wall of casing (2), opening (22) and holding chamber (21) intercommunication, in casing (2), the top of holding chamber (21) still is equipped with air outlet (23), when filter screen subassembly (1) is installed completely in holding chamber (21), the top (28) of holding chamber and the top of filter screen subassembly (1) offset, the bottom of filter screen subassembly (1) bears the bottom of holding chamber (21); at least one of the top of the screen assembly (1) and the bottom of the screen assembly (1) has an inclined mounting surface that is inclined towards the in-out direction of the screen assembly (1). The utility model discloses can realize the sealing connection of filter screen subassembly and air outlet with simple structure to the reliability is higher.

Description

Air purifier

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to an air purifier.

Background

Along with air pollution is more and more serious, people to indoor air quality requirement higher and higher, the suspended particles in the air can be got rid of to air purifier, provides comparatively clean air for people.

At present, the air purifier mainly depends on a filter screen for filtering and purifying air. Specifically, the fan among the air purifier inhales the air, and through the absorption of filter screen to suspended particles, the air after will purifying is discharged. Wherein, the filter efficiency is directly influenced by the quality of the sealing effect of the filter screen and the air inlet of the fan. As time goes on, the filter screen becomes more and more dirty due to the accumulation of the micro-dust, and the purpose of air purification cannot be achieved, which requires the user to replace the filter screen regularly, and in order to replace the filter screen, the filter screen is set to be detachable in the prior art.

However, the filter screen with convenient dismounting operation is poor with the sealing opening of the fan air outlet, and with the filter screen with good sealing performance of the fan air outlet, dismounting operation is comparatively complicated, and user experience is not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air purifier can realize the sealing connection of filter screen subassembly and air outlet with simple structure to the reliability is higher, easily dismouting.

The utility model provides an air purifier, which comprises a filter screen component and a shell with an accommodating cavity inside, wherein the side wall of the shell is provided with an opening for the filter screen component to pass in and out, the opening is communicated with the accommodating cavity, an air outlet is also arranged at the top of the accommodating cavity in the shell, when the filter screen component is completely installed in the accommodating cavity, the top of the accommodating cavity is abutted against the top of the filter screen component, and the bottom of the filter screen component is borne at the bottom of the accommodating cavity; at least one of the top portion and the bottom portion of the screen assembly has an angled mounting surface that is angled toward an in-out direction of the screen assembly.

When the filter screen assembly enters the accommodating chamber from the outer side through the opening, the mounting surface at the top of the filter screen assembly is in contact with and slides relative to the top of the accommodating chamber, the mounting surface at the bottom of the filter screen assembly is in contact with and slides relative to the bottom of the accommodating chamber, at least one of the top of the filter screen assembly and the bottom of the filter screen assembly is provided with an inclined mounting surface, and the inclined mounting surface inclines towards the inlet and outlet direction of the filter screen assembly, so that the front end and the lower side of the filter screen assembly enter the accommodating chamber firstly in the process of entering the filter screen assembly, the entering process is easier, the higher side also enters the accommodating chamber along with the gradual entering of the filter screen assembly, the filter screen assembly is completely installed in the accommodating chamber, at the moment, the bottom of the filter screen assembly is loaded at the bottom of the accommodating chamber, and the top of the, the effect of sealing connection of the filter screen component and the air outlet can be achieved. The method can be realized without a complex lifting mechanism as in the prior art, so that the structure is simpler and the reliability is higher.

In a possible embodiment, the filter screen assembly has, in a longitudinal section along its access direction, a smaller lateral dimension on the side of the front end in the access direction than on the side of the rear end in the access direction.

In can guarantee like this that the less one side of side size of filter screen subassembly gets into the holding cavity earlier, in addition at the in-process that the filter screen subassembly got into the holding cavity, the part that gets into the cavity earlier can not lead to the fact the hindrance to the part that gets into afterwards.

In a possible implementation manner, the top of the accommodating chamber includes an air outlet sealing portion, and a bottom end face of the air outlet sealing portion abuts against a top end face of the filter screen assembly.

Thus, the filtered air from the filter screen assembly can enter the air outlet without leakage.

In a possible embodiment, a sealing strip is provided on the top end face of the filter screen assembly, the sealing strip matching the shape of the air outlet seal, which is provided around the air outlet.

Make filter screen subassembly like this and with the leakproofness of air outlet sealing, secondly, the sealing strip can be changed after using a period, can guarantee that air purifier still keeps better sealing performance after having used for a long time.

In a possible embodiment, the filter screen assembly comprises a hollow ring-shaped filter element, a top cover arranged at the top end of the filter element and a bottom cover arranged at the bottom end of the filter element, wherein the upper end surface of the top cover is parallel to the top surface of the filter element, and the lower end surface of the bottom cover is parallel to the bottom surface of the filter element.

When the upper end face and the lower end face of the filter screen assembly need to be inclined, the height and the structural shape of the filter element can be not changed, and the filter screen assembly can be realized only by arranging the top cover and the bottom cover into an inclined structure.

In one possible embodiment, the cross-sectional shape of the outer side of the filter insert is circular or polygonal.

The arrangement can meet different requirements of different users.

In one possible implementation, the top cap seals the top of the cartridge and the bottom cap seals the bottom of the cartridge.

This further reduces leakage of air from the bottom or top of the filter element as it filters air.

In a possible implementation mode, the shell comprises a cover body, the cover body is covered on the outer side of the opening to seal the opening, a raised limiting rib is arranged on the inner side wall of the cover body, and when the filter screen assembly is completely installed in the accommodating cavity, the limiting rib is arranged on the outer side of the filter screen assembly in a blocking mode.

The cover body is arranged outside the opening, on one hand, the aesthetic property is considered, on the other hand, dust and the like are prevented from falling into the shell, and the inner side wall of the cover body is provided with a raised limiting rib for preventing the filter screen assembly from sliding out of the accommodating cavity.

In a possible implementation manner, the housing further includes a housing sidewall, the sidewall and the cover form a sidewall of the accommodating chamber, a limiting rib is formed on at least one housing sidewall, and/or the bottom of the accommodating chamber is also provided with the limiting rib.

Limiting ribs are formed on at least one shell side wall and/or limiting ribs are also arranged on the bottom of the accommodating cavity, so that the filter screen assembly can be prevented from moving towards the shell side wall, and the filter screen assembly cannot move towards the side in the accommodating cavity.

In one possible embodiment, when both the top end surface of the screen assembly and the bottom end surface of the screen assembly are inclined mounting surfaces, the top end surface of the screen assembly and the bottom end surface of the screen assembly have equal included angles with the horizontal plane.

Therefore, the component force of the acting force of the top and the bottom of the accommodating chamber on the filter screen assembly in the horizontal direction is the same, and the filter screen assembly is favorably and stably pushed into the opening.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a perspective view of an air purifier provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of an air purifier provided by an embodiment of the present invention;

fig. 3 is a schematic view illustrating an installation of an air purifier according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a screen assembly in an air purifier according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating another structure of a screen assembly in an air purifier according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating another structure of a screen assembly in an air purifier according to an embodiment of the present invention;

fig. 7 is a top view of a screen assembly in an air purifier according to an embodiment of the present invention;

fig. 8 is a top view of another structure of a screen assembly in an air purifier according to an embodiment of the present invention;

fig. 9 is a top view of another structure of a screen assembly in an air purifier according to an embodiment of the present invention.

Description of reference numerals:

100-an air purifier; 1-a screen assembly; 2-a shell; 11-a sealing strip; 12-a filter element; 13-a top cover; 14-a bottom cover; 21-an accommodating chamber; 22-an opening; 23-air outlet; 24-a cover body; 25-the top end face of the screen assembly; 26-the bottom end face of the screen assembly; 27-air outlet sealing part; 28-top of the containment chamber; 29-the end surface of the bottom end of the air outlet sealing part; 30-a bottom wall of the containment chamber; 31-a stop; 32-limit ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

Fig. 1 is a perspective view of an air purifier provided by an embodiment of the present invention, fig. 2 is a sectional view of an air purifier provided by an embodiment of the present invention, fig. 3 is an installation schematic view of an air purifier provided by an embodiment of the present invention, fig. 4 is a structural schematic view of a filter screen assembly in an air purifier provided by an embodiment of the present invention, fig. 5 is a schematic view of another structure of a filter screen assembly in an air purifier provided by an embodiment of the present invention, fig. 6 is a schematic view of another structure of a filter screen assembly in an air purifier provided by an embodiment of the present invention, as shown in fig. 1, 2 and 3, the present embodiment provides an air purifier 100, which includes a filter screen assembly 1 and a housing 2 having a receiving chamber 21 therein, an opening 22 for allowing the filter screen assembly 1 to enter and exit is formed on a side wall of the housing 2, the opening 22 is communicated with the receiving chamber 21, in the housing 2, the top of the accommodating chamber 21 is further provided with an air outlet 23, when the filter screen assembly 1 is completely installed in the accommodating chamber 21, the top 28 of the accommodating chamber abuts against the top of the filter screen assembly 1, and the bottom of the filter screen assembly 1 is borne at the bottom of the accommodating chamber 21; at least one of the top of the screen assembly 1 and the bottom of the screen assembly 1 has an inclined mounting surface that is inclined towards the in-out direction of the screen assembly 1.

When the filter screen assembly 1 enters the accommodating chamber 21 from the outside through the opening 22, the mounting surface at the top of the filter screen assembly 1 contacts and slides relative to the top 28 of the accommodating chamber, and the mounting surface at the bottom of the filter screen assembly 1 contacts and slides relative to the bottom of the accommodating chamber 21, because at least one of the top of the filter screen assembly 1 and the bottom of the filter screen assembly 1 has an inclined mounting surface which inclines towards the entering and exiting direction of the filter screen assembly 1, during the process that the filter screen assembly 1 enters the accommodating chamber 21, the front end and the side with smaller side size of the filter screen assembly 1 enter first, so the entering process is easier, along with the gradual entering of the filter screen assembly 1, the side with longer side size also enters the accommodating chamber 21, so that the filter screen assembly 1 is completely installed in the accommodating chamber 21, and at the moment, the bottom of the filter screen assembly 1 is supported at the bottom of the accommodating, the top 28 of the accommodating chamber is abutted against the top of the filter screen assembly 1, so that the effect of sealing connection between the filter screen assembly 1 and the air outlet 23 can be achieved. The method can be realized without a complex lifting mechanism as in the prior art, so that the structure is simpler and the reliability is higher.

Further, in the longitudinal section of the filter screen assembly 1 along the in-out direction thereof, the size of the side of the front end side in the entering direction is smaller than the size of the side of the rear end side in the entering direction, so that in the process of the filter screen assembly 1 entering the accommodating chamber 21, the part entering the accommodating chamber 21 first does not cause obstruction to the part entering later.

Specifically, the height of the filter screen assembly 1 at the side facing the inside of the accommodating chamber 21 is smaller than the height of the filter screen assembly 1 at the side facing the outside of the accommodating chamber 21. One side of the inner side of the accommodating chamber 21 is the left side as shown in fig. 3, and one side of the outer side of the accommodating chamber 21 is the right side as shown in fig. 3, so that the smaller side of the filter screen assembly 1 can be ensured to enter the accommodating chamber 21 first. Like this, at the in-process that filter screen subassembly 1 got into towards the inboard one side of accommodation chamber 21, the size of the front end of filter screen subassembly 1 is less than the height on accommodation chamber 21 right side, therefore the in-process of getting into is comparatively easy, along with getting into gradually of filter screen subassembly 1, the higher one side of height also gets into.

The strainer assembly 1 is disposed inside a housing 2 having an accommodating chamber 21 therein, and a ventilation mesh is provided on the housing 2 at a position corresponding to the strainer assembly 1 so that air can enter the housing 2. The side wall of the housing 2 is provided with an opening 22, the size of the opening 22 is only required to enable the filter screen assembly 1 to enter and exit, in addition, the housing 2 further comprises a cover body 24, and the cover body 24 is arranged outside the opening 22 in a covering mode so as to seal the opening 22. In this embodiment, the air outlet 23 is disposed above the filter assembly 1, that is, the air to be purified enters the inside of the filter assembly 1 through the air outlet 23, and after being filtered by the filter assembly 1, the air is discharged out of the air purifier 100 through the side of the filter assembly 1 and the above-mentioned ventilating holes.

When the filter screen assembly 1 is completely installed in the accommodating chamber 21, the top 28 of the accommodating chamber is abutted against the top of the filter screen assembly 1, specifically, when the filter screen assembly 1 is located at the installation position, the filter screen assembly 1 and the top 28 of the accommodating chamber are in interference fit, that is, the distance between the top and the bottom of the accommodating chamber 21 is smaller than the height of each part of the filter screen assembly 1 corresponding to the top and the bottom. The inclined mounting surface inclines towards the entering and exiting direction of the filter screen assembly 1, specifically, the height of the front end of the entering direction of the filter screen assembly 1 is smaller than that of the rear end of the entering direction. The direction indicated by the arrow in fig. 3 is the direction of entry of the screen assembly 1, the forward end of which is to the left of the plane of the paper in fig. 3.

At least one of the top of the screen assembly 1 and the bottom of the screen assembly 1 has an angled mounting surface, as shown in particular in fig. 4, 5, 6, fig. 4 being a case where the top of the screen assembly 1 has an angled mounting surface, fig. 5 being a case where both the top of the screen assembly 1 and the bottom of the screen assembly 1 have angled mounting surfaces, and fig. 6 being a case where the bottom of the screen assembly 1 has an angled mounting surface.

Furthermore, since the top 28 of the receiving chamber is located above the screen assembly 1, the top end face 25 of the screen assembly is generally a mounting face, and the bottom end face 26 of the screen assembly is located above the bottom of the receiving chamber 21, and thus the bottom end face 26 of the screen assembly is generally a mounting face, and optionally at least one of the top end face 25 of the screen assembly and the bottom end face 26 of the screen assembly is an inclined mounting face. Here, both the top end face 25 of the screen assembly and the bottom end face 26 of the screen assembly may be inclined mounting faces, the top end face 25 of the screen assembly may be inclined mounting faces, or the bottom end face 26 of the screen assembly may be inclined mounting faces. The inclined mounting surfaces are inclined towards the inlet and outlet direction of the filter screen assembly 1, so that the filter screen assembly 1 is easily mounted in the accommodating space.

In addition, in addition to the above-described situation that the top of the filter screen assembly 1 abuts against the top of the accommodating chamber 21, in order to increase the sealing effect between the air outlet 23 and the filter screen assembly 1, generally, an air outlet sealing portion 27 is further provided at the air outlet 23, and a bottom end surface 29 of the air outlet sealing portion needs to abut against a top end surface 25 of the filter screen assembly, so that good sealing performance between the air outlet 23 and the filter screen assembly 1 can be ensured. Specifically, the air outlet sealing portion 27 is disposed at the top 28 of the accommodating chamber, and may be a sealing rib extending downward from the top 28 of the accommodating chamber, and a bottom end surface 29 of the air outlet sealing portion abuts against the top end surface 25 of the filter screen assembly.

Of course, for better fit with the inclined mounting surface, it is optional to have the bottom end face 29 of the outlet seal and the top end face 25 of the screen assembly parallel to each other, and/or the bottom wall 30 of the receiving chamber and the bottom end face 26 of the screen assembly parallel to each other. Like this the bottom terminal surface 29 of air outlet sealing portion is the same with the top terminal surface 25 of filter screen subassembly, also form the slope installation face towards the business turn over direction slope of filter screen subassembly 1, and/or, the diapire 30 of accommodation chamber and the bottom terminal surface 26 of filter screen subassembly also form the slope installation face towards the business turn over direction slope of filter screen subassembly 1, and like this, each part of top terminal surface 25 of filter screen subassembly receives the effort of the bottom terminal surface 29 of air outlet sealing portion and equals, also enable the bottom terminal surface 29 of air outlet sealing portion and the top terminal surface 25 of filter screen subassembly to be face contact, be favorable to the inseparable laminating of the two, make the leakproofness better.

Further, a sealing strip 11 matched with the shape of the air outlet sealing portion 27 is arranged on the top end face 25 of the filter screen assembly, and the air outlet sealing portion 27 is arranged around the air outlet 23. Thus, the sealing performance of the filter screen assembly 1 and the air outlet sealing part 27 is better, and secondly, the sealing strip 11 can be replaced after being used for a period of time, so that the air purifier 100 can still keep better sealing performance after being used for a longer time. The sealing strip 11 may be made of sealing sponge, or may be made of elastic deformable material such as silicone rubber or rubber.

With regard to the manner of fixing the sealing strip 11, in a possible embodiment, a mounting groove for mounting the sealing strip 11 is provided on the top end face 25 of the screen assembly, and when the top end face 25 of the screen assembly is an inclined mounting face, the groove bottom of the mounting groove and the top end face 25 of the screen assembly are arranged in parallel. Thus, the sealing strip 11 is also arranged in an inclined shape, can be better attached to the top end surface 25 of the filter screen assembly, and can also be prevented from generating a gap between the sealing strip and the top end surface.

Next, the screen assembly 1 of the present embodiment will be described in detail with reference to fig. 4, and as shown in fig. 4, the screen assembly 1 includes a hollow ring-shaped filter element 12, a top cover 13 disposed at the top end of the filter element 12 and a bottom cover 14 disposed at the bottom end of the filter element 12, an upper end surface of the top cover 13 is parallel to the top surface of the filter element 12, a lower end surface of the bottom cover 14 is parallel to the bottom surface of the filter element 12, an upper end surface of the top cover 13 forms a top end surface 25 of the screen assembly, and a lower end surface of the bottom cover 14 forms a. That is, the entire filter element 12 is configured to be high and low. This can increase the area for purifying air as much as possible. When the upper end face and the lower end face of the filter screen assembly 1 need to be inclined, the height and the structural shape of the filter element 12 can be unchanged, and the inclination structure of the top cover 13 and the bottom cover 14 can be realized. In this case, the upper end surface of the top cap 13 and the top surface of the filter element 12 are inclined to each other, and the lower end surface of the bottom cap 14 and the bottom surface of the filter element 12 are inclined to each other, and in addition, the top cap 13 is also required to seal the top of the filter element 12, and the bottom cap 14 is also required to seal the bottom of the filter element 12, as an example. This prevents air from leaking from the bottom or top of the filter element 12 as the filter element 12 filters air.

Fig. 7 is the utility model provides a top view of filter screen subassembly in the air purifier, fig. 8 is the utility model provides a top view of another kind of structure of filter screen subassembly in the air purifier, fig. 9 is the utility model provides a top view of another kind of structure of filter screen subassembly in the air purifier who provides, as shown in fig. 7, 8, 9, the overlooking shape of filter screen subassembly 1 can be square, also can be circular, also can be the hexagon. I.e., the cross-sectional shape of the outer side of the cartridge 12 can be circular or polygonal.

Further, as shown in fig. 5, when both the top end surface 25 of the screen assembly and the bottom end surface 26 of the screen assembly are inclined mounting surfaces, the top end surface 25 of the screen assembly and the bottom end surface 26 of the screen assembly have equal angles with the horizontal plane. This allows the top 28 and bottom of the receiving chamber to have the same horizontal component of the force applied to the screen assembly 1, which facilitates the smooth pushing of the screen assembly 1 into the receiving chamber 21 from the opening 22.

Further, the outlet seal portion 27 may be optionally provided around the outlet 23. In the case where the air outlet 23 is provided in the center of the air cleaner 100, this can better seal around the air outlet 23.

In a possible embodiment, as shown in fig. 2, a stop portion 31 is further disposed in the accommodating chamber 21, and the position of the stop portion 31 corresponds to the movement end point of the filter screen assembly 1. By providing the stopping portion 31, the stopping portion 31 can prevent the filter screen assembly 1 from further moving toward the inner side of the accommodating chamber 21 after the filter screen assembly 1 enters the accommodating chamber 21 through the opening 22 and reaches the installation position. The stopping portion 31 may be formed by partially protruding the bottom wall 30 of the accommodating chamber as shown in fig. 2, or may be a stopping block structure separately installed on the bottom wall 30 of the accommodating chamber.

In addition, since the present embodiment is installed in a manner of being matched with an inclined surface, the filter screen assembly 1 may slide out of the opening 22, and therefore, a component capable of protruding from the edge of the opening 22 to perform a limiting function may be further provided at the opening 22.

In a possible implementation manner, a raised limiting rib (not shown) is provided on the inner side wall of the cover body 24, and when the filter screen assembly 1 is completely installed in the accommodating cavity 21, the cover body 24 is covered, and the limiting rib 32 is blocked at the outer side of the filter screen assembly 1, so that the filter screen assembly 1 can be prevented from sliding out of the accommodating cavity 21. The cover is provided outside the opening to prevent dust from falling into the case 2 while maintaining the appearance.

As mentioned above, the housing 2 further includes housing side walls, the side walls and the cover 24 form side walls of the accommodating chamber 21, and at least one of the housing side walls is formed with a limiting rib (not shown), which has a similar function as the limiting rib on the cover 24 and is used for limiting the movement of the filter screen assembly 1 in the horizontal direction.

Optionally, the limiting rib 32 is also arranged on the bottom of the accommodating chamber. As shown in fig. 1 and 3, at least one limiting rib 32 is also disposed at the side edge of the bottom of the accommodating chamber 21, so as to prevent the filter screen assembly 1 from displacing towards the side wall of the housing, and ensure that the filter screen assembly does not displace towards the side in the accommodating chamber. The number of the restricting ribs 32 may correspond to the top view shape of the screen assembly 1, and for example, when the top view shape of the screen assembly 1 is a square shape, a total of four restricting ribs 32 may be provided corresponding to each surface of the screen assembly. In addition, it should be noted that the protruding height of the position limiting ribs 32 can just block the outside of the screen assembly 1, so as to prevent the screen assembly 1 from sliding out.

In the embodiment, the air purifier comprises a filter screen assembly and a shell with an accommodating chamber inside, wherein an opening for the filter screen assembly to enter and exit is formed in the side wall of the shell, the opening is communicated with the accommodating chamber, an air outlet is also formed in the top of the accommodating chamber in the shell, when the filter screen assembly is completely installed in the accommodating chamber, the top of the accommodating chamber is abutted against the top of the filter screen assembly, and the bottom of the filter screen assembly is borne at the bottom of the accommodating chamber; at least one of the top portion and the bottom portion of the screen assembly has an angled mounting surface that is angled toward an in-out direction of the screen assembly. When the filter screen assembly enters the accommodating chamber from the outer side through the opening, the mounting surface at the top of the filter screen assembly is in contact with and slides relative to the top of the accommodating chamber, the mounting surface at the bottom of the filter screen assembly is in contact with and slides relative to the bottom of the accommodating chamber, at least one of the top of the filter screen assembly and the bottom of the filter screen assembly is provided with an inclined mounting surface, and the inclined mounting surface inclines towards the inlet and outlet direction of the filter screen assembly, so that the front end and the lower side of the filter screen assembly enter the accommodating chamber firstly in the process of entering the filter screen assembly, the entering process is easier, the higher side also enters the accommodating chamber along with the gradual entering of the filter screen assembly, the filter screen assembly is completely installed in the accommodating chamber, at the moment, the bottom of the filter screen assembly is loaded at the bottom of the accommodating chamber, and the top of the, the effect of sealing connection of the filter screen component and the air outlet can be achieved. The method can be realized without a complex lifting mechanism as in the prior art, so that the structure is simpler and the reliability is higher.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The air purifier is characterized by comprising a filter screen assembly (1) and a shell (2) with an accommodating chamber (21) inside, wherein an opening (22) for the filter screen assembly (1) to enter and exit is formed in the side wall of the shell (2), the opening (22) is communicated with the accommodating chamber (21), an air outlet (23) is formed in the top of the accommodating chamber (21) in the shell (2), when the filter screen assembly (1) is completely installed in the accommodating chamber (21), the top (28) of the accommodating chamber is abutted to the top of the filter screen assembly (1), and the bottom of the filter screen assembly (1) is borne at the bottom of the accommodating chamber (21); at least one of the top of the screen assembly (1) and the bottom of the screen assembly (1) has an inclined mounting surface that is inclined towards the in-out direction of the screen assembly (1).

2. Air cleaner according to claim 1, characterized in that the filter screen assembly (1) has, in a longitudinal section along its access direction, a smaller lateral dimension on the side of the front end in the access direction than on the side of the rear end in the access direction.

3. The air cleaner according to claim 1, wherein the top (28) of the receiving chamber comprises an outlet seal (27), a bottom end face (29) of the outlet seal abutting against a top end face (25) of the screen assembly.

4. The air purifier according to claim 1, wherein a sealing strip (11) matching the shape of the outlet seal (27) is provided on the top end surface (25) of the screen assembly, the outlet seal (27) being disposed around the outlet (23).

5. The air cleaner of any one of claims 1-4, wherein the screen assembly (1) comprises a hollow annular filter element (12), and a top cover (13) disposed at a top end of the filter element (12) and a bottom cover (14) disposed at a bottom end of the filter element (12), wherein an upper end surface of the top cover (13) is parallel to a top surface of the filter element (12), and a lower end surface of the bottom cover (14) is parallel to a bottom surface of the filter element (12).

6. The air cleaner of claim 5, wherein the filter element (12) has an outer side surface that is circular or polygonal in cross-sectional shape.

7. The air cleaner of claim 5, wherein the top cover (13) seals a top of the filter element (12) and the bottom cover (14) seals a bottom of the filter element (12).

8. The air cleaner as claimed in any one of claims 1 to 4, wherein the housing (2) comprises a cover body (24), the cover body (24) is disposed outside the opening (22) to close the opening (22), and a raised position-limiting rib is disposed on an inner side wall of the cover body (24) and is blocked outside the screen assembly (1) when the screen assembly is completely installed in the accommodating chamber (21).

9. Air cleaner according to claim 8, characterized in that the housing (2) further comprises housing side walls, the side walls and the cover (24) forming side walls of the receiving chamber (21), at least one of the housing side walls being formed with the retaining ribs and/or the bottom of the receiving chamber being also provided with the retaining ribs (32).

10. Air cleaner according to any of claims 1-4, wherein the top end face (25) of the screen assembly and the bottom end face (26) of the screen assembly are formed as the inclined mounting face, the top end face (25) of the screen assembly and the bottom end face (26) of the screen assembly having equal angles to the horizontal.

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