An air purifier filter fixing structure and an air purifier

Abstract

The present invention provides a filter fixing structure for an air purifier and an air purifier, relating to the technical field of air purifiers. The fixing structure includes a filter component and a body component. The body component includes a body, a support plate, an elastic member and a base. The support plate is arranged at the bottom of the body. The filter component is arranged inside the body component and is supported by the support plate. The elastic member is arranged below the support plate for elastically supporting the support plate. The base is arranged below the elastic member to support the elastic member, and the base is fixedly connected to the body. Through the combined assembly of the support plate, the elastic member and the base, and the fixed connection between the base and the body, the filter component, the support plate and the elastic member are firmly limited between the base and the body. Furthermore, through the elastic supporting effect of the elastic member on the support plate, the filter component is firmly fixed in the body by the support plate, avoiding the up-and-down movement of the filter component in the body, thereby improving the filtering effect of the filter on air.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and particularly relates to a filter screen fixing structure for an air purifier and an air purifier. Background Art

[0002] With the emergence of smoggy weather, people pay more and more attention to the improvement of indoor air quality. Generally, an air purifier is used to purify and filter indoor air to reduce particulate pollutants in the air.

[0003] A filter screen is provided in the air purifier. By sucking external air into the air purifier and making the sucked air flow through the filter screen, particulate pollutants entrained in the air are filtered by the filter screen, thereby achieving the purpose of improving air quality.

[0004] To ensure that the air sucked into the air purifier can be fully purified, the filter screen must be firmly set in the body of the air purifier to prevent unfiltered air from entering the body through the gaps caused by the filter screen moving up and down around it. In the traditional fixing structure, the filter screen is usually fixed by adding a spring under the steel ball below the filter screen or adding a spring under the POM (polyoxymethylene resin) support block. This method still makes it difficult to avoid the up and down movement of the filter screen in the body. Summary of the Invention

[0005] The purpose of the present invention is to provide a filter screen fixing structure for an air purifier and an air purifier, aiming at the deficiencies of the above-mentioned existing technologies, so as to solve the problem of fixing the filter screen in the body.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] In the first aspect, the present invention provides a filter screen fixing structure for an air purifier, including a filter screen assembly and a body assembly. The body assembly includes a body, a support plate, an elastic member and a base.

[0008] The support plate is arranged at the bottom of the body. The filter screen assembly is arranged inside the body assembly and is supported by the support plate. The elastic member is arranged below the support plate for elastically supporting the support plate. The base is arranged below the elastic member to support the elastic member, and the base is fixedly connected to the body.

[0009] Optionally, a sealed cavity is formed after the base is fixedly connected to the body to completely enclose the support plate and the elastic member in the sealed cavity.

[0010] Optionally, a limiting convex portion is provided at the lower part of the body. When the support plate is arranged at the bottom of the body, the limiting convex portion contacts the side wall and the lateral flange of the support plate at the same time, so that the limiting convex portion restricts the movement of the support plate in the upward direction and the left and right directions.

[0011] Optionally, the elastic member is a spring.

[0012] Optionally, a plurality of circular holes with openings facing downwards are provided on the support plate. The number of springs is the same as the number of the plurality of circular holes, and one spring is provided in each circular hole. One end of each spring abuts against the upper wall inside the corresponding circular hole, and the other end of each spring abuts against the base.

[0013] Optionally, the shape of the filter screen assembly is cylindrical, the shape of the support plate is circular, the plurality of circular holes are circumferentially and uniformly arranged along the perimeter of the support plate. The inner diameter of the circular hole is larger than the outer diameter of the spring, and the inner diameter of the circular hole is less than 1.1 times the outer diameter of the spring.

[0014] Optionally, the filter screen assembly includes a filter screen filter paper, a filter screen upper fixing cover provided above the filter screen filter paper, and a filter screen lower fixing cover provided below the filter screen filter paper.

[0015] Optionally, the filter screen assembly further includes a sealing cotton provided on the filter screen upper fixing cover.

[0016] Optionally, a ring-shaped protruding portion is provided on the perimeter of the upper surface of the support plate, and a plurality of dot-shaped protruding portions are uniformly provided in the inner region of the upper surface of the support plate. The height of the ring-shaped protruding portion is equal to the height of the plurality of dot-shaped protruding portions.

[0017] In a second aspect, the present invention further provides an air purifier, which includes the air purifier filter screen fixing structure according to the first aspect.

[0018] The beneficial effects of the present invention include:

[0019] The air purifier filter screen fixing structure provided by the present invention includes a filter screen assembly and a body assembly. The body assembly includes a body, a support plate, an elastic member and a base. The support plate is provided at the bottom of the body. The filter screen assembly is provided inside the body assembly and is supported by the support plate. The elastic member is provided below the support plate for elastically supporting the support plate. The base is provided below the elastic member to support the elastic member, and the base is fixedly connected to the body. Through the combined assembly of the support plate, the elastic member and the base, and the fixed connection between the base and the body, the filter screen assembly, the support plate and the elastic member are firmly defined between the base and the body. Furthermore, through the elastic supporting effect of the elastic member on the support plate, the filter screen assembly is firmly fixed inside the body, avoiding the up and down movement of the filter screen assembly inside the body, thereby improving the filtering effect of the filter screen on the air. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 The exploded structural schematic diagram of the filter screen fixing structure of the air purifier provided by the embodiment of the present invention is shown;

[0022] Figure 2 The enlarged structural schematic diagram of the support plate and the elastic member provided by the embodiment of the present invention is shown;

[0023] Figure 3 The assembled structural schematic diagram of the filter screen fixing structure of the air purifier provided by the embodiment of the present invention is shown;

[0024] Figure 4 It shows Figure 3 The enlarged structural schematic diagram of the area within the dashed box in

[0025] Icons: 110 - filter screen assembly; 111 - filter screen filter paper; 112 - upper fixing cover of the filter screen; 113 - lower fixing cover of the filter screen; 114 - sealing cotton; 120 - body assembly; 121 - body; 1211 - limiting convex part; 122 - support plate; 1221 - side wall; 1222 - lateral flange; 1223 - round hole; 1224 - annular convex part; 1225 - dot-like convex part; 123 - elastic member; 124 - base. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] In order to ensure that the air sucked into the air purifier can be fully purified, the filter must be firmly installed in the body of the air purifier to prevent unfiltered air from entering the body through the gaps around the filter caused by the movement of the filter. In traditional fixing structures, the filter is usually fixed by adding a spring under the steel ball under the filter or adding a spring under the POM (polyoxymethylene resin) support block. This method still makes it difficult to avoid the filter from moving up and down in the body. To this end, an embodiment of the present invention provides an air purifier filter fixing structure to solve the technical problem of fixing the filter of the air purifier. The design of this structure prevents the filter from moving up and down in the body, plays a role of fixed sealing, and corrects the injection molding deformation of the filter base to prevent poor sealing.

[0032] Figure 1 A schematic diagram of the exploded structure of the filter fixing structure of the air purifier provided by an embodiment of the present invention is shown; Figure 2 shows an enlarged structural schematic diagram of a support plate and an elastic member provided in an embodiment of the present invention; Figure 3 A schematic diagram of the assembled structure of the filter fixing structure of the air purifier provided by an embodiment of the present invention is shown; Figure 4 Shown Figure 3 Schematic diagram of the enlarged structure of the dotted box area.

[0033] The following will refer to Figures 1 to 4 The filter fixing structure of the air purifier provided by the embodiment of the present invention is described in detail.

[0034] Refer to Figure 1 , the filter screen fixing structure provided by the embodiment of the present invention includes a filter screen assembly 110 and a body assembly 120. The body assembly 120 includes a body 121, a support plate 122, an elastic member 123, and a base 124.

[0035] The support plate 122 is arranged at the bottom of the body 121. The filter screen assembly 110 is arranged inside the body assembly 120 and is supported by the support plate 122. Optionally, the filter screen assembly 110 includes a filter screen filter paper 111, an upper filter screen fixing cover 112 arranged above the filter screen filter paper 111, and a lower filter screen fixing cover 113 arranged below the filter screen filter paper 111. At this time, when the filter screen assembly 110 is arranged inside the body assembly 120, as Figure 3 shown, the filter screen filter paper 111 is arranged around the mesh holes in the body 121. The upper filter screen fixing cover 112 and the lower filter screen fixing cover 113 are respectively arranged above and below the filter screen filter paper 111 to relatively fix the filter screen filter paper 111 to the body 121, so that the air inhaled into the body 121 can enter only after passing through the filter screen filter paper 111.

[0036] The elastic member 123 is arranged below the support plate 122 to elastically support the support plate 122. The base 124 is arranged below the elastic member 123 to support the elastic member 123, and the base 124 is fixedly connected to the body 121.

[0037] When assembling the above structure, the support plate 122 is assembled into the body 121, the elastic member 123 is assembled below the support plate 122, and the base 124 is covered. For example, the base 124 is locked to the body 121 by screws. The filter screen assembly 110 is assembled into the body assembly 120. The bottom of the filter screen assembly 110 abuts against the support plate 122, so as to elastically support the support plate 122 by relying on the elastic member 123, thereby realizing the fixation of the filter screen assembly 110. The structure after assembly is as Figure 3 shown.

[0038] In summary, through the combined assembly of the support plate, the elastic member and the base, and the fixed connection between the base and the body, the filter screen assembly, the support plate, and the elastic member are firmly limited between the base and the body. Furthermore, through the elastic support of the elastic member on the support plate, the filter screen assembly is firmly fixed in the body by the support plate, avoiding the up and down movement of the filter screen assembly in the body, thereby improving the air filtering effect of the filter screen.

[0039] Optionally, after the base 124 is fixedly connected to the body 121, a sealed cavity is formed to completely enclose the support plate 122 and the elastic member 123 in the sealed cavity, thereby ensuring the airtightness of the fuselage after assembly and preventing air from entering the body 121 through the gap between the base 124 and the body 121, further improving the filtering effect of the filter on the air.

[0040] Optionally, as Figure 4 shown, a limiting convex portion 1211 is provided at the lower part of the body 121. When the support plate 122 is arranged at the bottom of the body 121, the limiting convex portion 1211 contacts the side wall 1221 of the support plate 122 and the lateral flange 1222 of the support plate 122 simultaneously, so that the limiting convex portion 1211 restricts the movement of the support plate 122 in the upward direction and the left and right directions. Specifically, as Figure 4 shown, the limiting convex portion 1211 is in an "L" shape. One end of the limiting convex portion 1211 is fixedly connected to the main body portion of the body 121, the side surface of the other end of the limiting convex portion 1211 abuts against the side wall 1221 of the support plate 122, and the bottom surface of the other end of the limiting convex portion 1211 abuts against the lateral flange 1222 of the support plate 122. It should be understood that in the plane parallel to the plane where the support plate 122 is located, the limiting convex portion 1211 is arranged in a ring shape matching the periphery of the support plate 122.

[0041] By providing the limiting convex portion 1211 that cooperates with the edge of the support plate 122, and the limiting convex portion 1211 abuts against the side wall 1221 near the edge of the support plate 122 in a ring shape, the left and right shaking of the support plate 122 (that is, the shaking in the plane parallel to the plane where the support plate 122 is located) is prevented. At the same time, by the limiting convex portion 1211 abutting against the lateral flange 1222 of the support plate 122, the upward movement of the support plate 122 during the assembly of the support plate 122 is prevented.

[0042] Optionally, the elastic member 123 can be a spring. In practical applications, the elastic member 123 can be multiple springs. Referring to Figure 2 , a plurality of round holes 1223 with openings facing downwards are provided on the support plate 122. The number of springs constituting the elastic member 123 is the same as the number of the plurality of round holes 1223, and one spring is provided in each round hole. One end of each spring abuts against the upper wall inside the corresponding round hole, and the other end of each spring abuts against the base 124 (refer to Figure 4 ). By providing the support plate 122 with a plurality of round holes 1223 and the corresponding plurality of springs, the support plate 122 and the filter assembly 110 thereon can be supported by the plurality of springs together, which can reduce or even avoid the adverse effect of the injection molding deformation of the base 124 on the stable arrangement of the filter assembly 110, that is, the correction of the injection molding deformation of the filter base is realized.

[0043] Although Figure 2 it is shown in that there are 5 round holes and 5 springs, it should be understood that this is only an example, and the number of round holes and springs can be determined according to specific circumstances, which will be described in detail below.

[0044] Optionally, the shape of the filter screen assembly 110 is cylindrical, the shape of the support plate 122 is circular, and the plurality of round holes 1223 are circumferentially and uniformly arranged along the periphery of the support plate 122. The number of the plurality of round holes 1223 can be determined according to the diameter of the support plate 122. Generally, the larger the diameter of the support plate 122, the more round holes are provided. For example, for a support plate 122 with a diameter of 20 cm, 8 or 10 or 12 round holes can be uniformly provided along the periphery of the lower surface of the support plate 122. The inner diameter of the round hole 1223 is slightly larger than the outer diameter of the spring to facilitate putting the spring into the round hole 1223 and at the same time avoid the possible crosstalk of the spring in the round hole 1223. For example, the inner diameter of the round hole 1223 can be larger than the outer diameter of the spring, and the inner diameter of the round hole 1223 is less than 1.2 times the outer diameter of the spring. Preferably, the inner diameter of the round hole 1223 can be larger than the outer diameter of the spring, and the inner diameter of the round hole 1223 is less than 1.1 times the outer diameter of the spring. More preferably, the inner diameter of the round hole 1223 can be larger than the outer diameter of the spring, and the inner diameter of the round hole 1223 is less than 1.05 times the outer diameter of the spring. Particularly, for example, the inner diameter of the round hole 1223 is equal to 1.02 times the outer diameter of the spring.

[0045] Optionally, as Figure 1 shown, the filter screen assembly 110 may further include a sealing cotton 114 provided on the upper fixing cover 112 of the filter screen. By providing the sealing cotton 114, the tightness and sealing performance after the filter screen assembly 110 is installed on the fuselage assembly 120 can be further ensured, thereby ensuring a good air filtering effect of the filter screen.

[0046] Optionally, as Figure 4 shown, a ring-shaped convex portion 1224 is provided on the periphery of the upper surface of the support plate 122, and a plurality of dot-shaped convex portions 1225 are uniformly provided in the inner region of the upper surface of the support plate 122, and the ring-shaped convex portion 1224 and the plurality of dot-shaped convex portions 1225 have the same height. By providing the ring-shaped convex portion 1224 and the dot-shaped convex portions 1225, the adverse effect of the unevenness of the lower surface of the lower fixing cover 113 of the filter screen on the stable setting of the filter screen assembly 110 can be reduced.

[0047] When assembling the above structure, the support plate 122 is installed in the body 121, the spring is installed in the round hole 1223 of the support plate 122, the base 124 is covered, and the screw is locked; the filter screen assembly 110 is installed in the fuselage, and the filter screen assembly 110 is fixed by elastically supporting the support plate 122 by the spring, and the injection molding deformation of the filter screen base 124 is corrected, and the sealing cotton 114 plays a role in clamping and fixing and sealing.

[0048] In addition, the embodiment of the present invention further provides an air purifier, which includes the air purifier filter screen fixing structure provided by the above embodiment of the present invention. By adopting the above air purifier filter screen fixing structure, the filter screen assembly is fixed by elastically supporting the support plate by the spring, and the injection molding deformation of the filter screen base is corrected, and the sealing cotton plays a role in clamping and fixing and sealing. Therefore, the air filtering effect of the air purifier is improved.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. 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. An air purifier filter fixing structure, characterized in that: It includes a filter assembly and a body assembly, wherein the body assembly includes a body, a support plate, an elastic member and a base. The support plate is arranged at the bottom of the body, the filter assembly is arranged inside the body assembly and supported by the support plate, the elastic member is arranged below the support plate for elastically supporting the support plate, the base is arranged below the elastic member to support the elastic member, and the base is fixedly connected to the body; wherein, A limiting protrusion is provided at the lower part of the machine body. When the support plate is placed at the bottom of the machine body, the limiting protrusion contacts the side wall and the lateral flange of the support plate at the same time, so that the limiting protrusion limits the movement of the support plate in the upward direction and the left and right directions; wherein, The elastic component is a spring.

2. The air purifier filter fixing structure according to claim 1, characterized in that: The base is fixedly connected to the body to form a closed cavity, so as to completely enclose the support plate and the elastic component in the closed cavity.

3. The air purifier filter fixing structure according to claim 1, characterized in that: The support plate is provided with a plurality of circular holes with openings facing downwards, the number of the springs is the same as the number of the circular holes, and a spring is provided in each circular hole, one end of each spring abuts against the upper wall of the corresponding circular hole, and the other end of each spring abuts against the base.

4. The air purifier filter fixing structure according to claim 3, characterized in that: The filter assembly is cylindrical in shape, the support plate is circular in shape, the multiple circular holes are evenly arranged circumferentially along the periphery of the support plate, the inner diameter of the circular hole is larger than the outer diameter of the spring, and the inner diameter of the circular hole is less than 1.1 times the outer diameter of the spring.

5. The air purifier filter fixing structure according to any one of claims 1 to 4, characterized in that: The filter screen assembly includes a filter screen filter paper, a filter screen upper fixing cover arranged above the filter screen filter paper, and a filter screen lower fixing cover arranged below the filter screen filter paper.

6. The air purifier filter fixing structure according to claim 5, characterized in that: The filter assembly also includes sealing cotton arranged on the fixed cover of the filter.

7. The air purifier filter fixing structure according to claim 5, characterized in that: An annular protrusion is provided on the periphery of the upper surface of the support plate, and a plurality of dot-shaped protrusions are evenly provided on the inner area of the upper surface of the support plate. The annular protrusion has the same height as the plurality of dot-shaped protrusions.

8. An air purifier, characterized in that: It comprises an air purifier filter fixing structure according to any one of claims 1 to 7.

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