Air purifier with filter cartridge

Abstract

The invention discloses an air purifier with a filter cartridge, comprising: an electric appliance main body provided with a fan and a filter element; the filtering box is arranged on the electric appliance main body, the filtering box is provided with an air inlet channel with a downward opening, a collecting cavity communicated with the air inlet channel is formed in the filtering box, and a plurality of vent holes communicated with the collecting cavity are formed in the filtering box in a penetrating manner; wherein the fan drives external fluid to sequentially pass through the air inlet channel, the collecting cavity and the vent hole and then pass through the filter element, so that hair in the external fluid stays in the collecting cavity. According to the air purifier with the structure, the filter box is arranged at the front end of the advancing direction of fluid, gas in the fluid entering the filter box can reach the filter element after passing through the vent holes, and hair is collected in the collecting cavity, so that the problem that the hair is difficult to clean due to the fact that the hair is attached to the surface of the filter element is solved, and the influence of wind resistance on the filtering effect can be reduced; the service life of the filter element is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household cleaning tools, and particularly relates to an air purifier with a filter box. BACKGROUND

[0002] With the rapid development of modern living standards, people have higher and higher requirements for the cleaning and sanitation of indoor environment. Generally, human dander and hair often appear on the floor. For families that raise pets, the pets also produce dander and hair that falls to the floor, thereby causing people's troubles. In order to clean the air and filter the hair, the prior art generally provides a filter layer for isolating hair at the front end of the filter core. The filter layer is usually made of felt material. When a large amount of hair is attached to the filter layer, the wind resistance is increased, the efficiency of gas passing through the filter core is affected, and the cleaning of the hair is very inconvenient, and the cleaning effect is not good. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, one of the purposes of the present application is to provide an air purifier with a filter box, which can isolate and collect hair in the filter box before the fluid passes through the filter core, so as to facilitate the cleaning of the hair and reduce the influence of wind resistance on the filtering effect.

[0004] According to the air purifier with a filter box in the embodiment of the present application, the air purifier comprises an electric appliance main body, a filter core and a fan, the filter core is provided with an air inlet channel with an opening downward, the inside of the filter box is provided with a collection cavity in communication with the air inlet channel, and the filter box is provided with a plurality of air holes in communication with the collection cavity. The fan drives the external fluid to pass through the air inlet channel, the collection cavity and the air holes in sequence and then pass through the filter core, so that the hair in the external fluid stays in the collection cavity.

[0005] According to the air purifier with a filter box in the embodiment of the present application, at least the following beneficial effects are achieved: The air purifier with the above structure is provided with the filter box at the front end of the flowing direction of the fluid. The gas in the fluid entering the filter box can pass through the air holes and reach the filter core, and the hair is collected in the collection cavity, thereby avoiding the problem that the hair is attached to the surface of the filter core and is difficult to clean, reducing the influence of wind resistance on the filtering effect, and prolonging the service life of the filter core.

[0006] In some embodiments of the present application, the inside of the filter box is provided with two air inlet wall plates extending upward at intervals, the air inlet channel is defined between the two air inlet wall plates, and the upper end of at least one air inlet wall plate is provided with an arc-shaped flow guide section capable of guiding the fluid to flow to the collection cavity.

[0007] In some embodiments of the present application, two said air inlet wall plates define a said collection cavity between each and an inner wall of said filter box, two said collection cavities are oppositely arranged on two sides of said air inlet passage, upper ends of two said air inlet wall plates are provided with said arc-shaped flow guide sections, and two said arc-shaped flow guide sections respectively guide two streams of fluid to generate rotational movements in different directions.

[0008] In some embodiments of the present application, said arc-shaped flow guide sections and an inner top wall of said filter box form an overflow passage, said overflow passage is located at a middle upper portion of said filter box in a height direction, said collection cavity is located below said overflow passage and communicates with said overflow passage, and a wall plate of said filter box corresponding to said overflow passage is a solid plate.

[0009] In some embodiments of the present application, said filter box is a rectangular box, long sides of said rectangular box are arranged along a horizontal direction, lower ends of two said air inlet wall plates are connected with flared extension plates, and two said flared extension plates are oppositely arranged to define a trumpet mouth communicating with said air inlet passage.

[0010] In some embodiments of the present application, a front side of said electric appliance body is detachably provided with a front panel, said filter box has an inner surface facing said front panel and a downward open mouth, said air inlet wall plate is formed on said filter box, and said filter box is detachably connected to said inner surface of said front panel to define said air inlet passage and said collection cavity.

[0011] In some embodiments of the present application, an edge of said open mouth of said filter box is provided with a U-shaped retaining edge, an opening of said U-shaped retaining edge faces downward, an inner peripheral wall of said U-shaped retaining edge and said inner surface of said front panel, and a side wall of said air inlet wall plate facing away from said air inlet passage and said inner surface of said front panel are detachably connected through a buckle assembly.

[0012] In some embodiments of the present application, said filter box, said filter element and said fan are sequentially arranged along a running direction of external fluid, said filter box is arranged at a lower portion of said electric appliance body, and a plurality of said air holes are arranged on a side wall of said collection cavity facing said filter element.

[0013] In some embodiments of the present application, said filter box is detachably mounted on a bottom wall of said electric appliance body to upwardly support said electric appliance body, an output end of said air inlet passage is upwardly arranged, said collection cavity and said air holes are arranged around an outer periphery of said air inlet passage, and said air holes penetrate through said bottom wall of said electric appliance body in a vertical direction.

[0014] In some embodiments of the present application, the electric appliance body comprises a cylindrical shell, the filter element is a cylindrical filter arranged inside the cylindrical shell, the outer peripheral wall of the cylindrical filter and the inner peripheral wall of the cylindrical shell define an air inlet cavity in communication with the air passage, the internal passage of the cylindrical filter constitutes an air outlet cavity, the filter box comprises a cylindrical base, the middle part of the cylindrical base is provided with an outer horn pipe and an inner horn pipe arranged coaxially with the outer horn pipe being wide at the bottom and narrow at the top, the outer horn pipe and the inner horn pipe define the air inlet passage, and the upper edge of the outer horn pipe is provided with a circular ring flange for guiding fluid to the collection cavity.

[0015] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 is a structural schematic view of embodiment one of the air purifier with filter box of the present application; Figure 2 is Figure 1 is a structural exploded view of embodiment one; Figure 3 is Figure 1 is a structural schematic view of the filter box of embodiment one; Figure 4 is an exploded schematic view of embodiment two of the air purifier with filter box of the present application; Figure 5 is an appearance schematic view of embodiment three of the air purifier with filter box of the present application; Figure 6 is Figure 5 is a sectional view of embodiment one.

[0018] Reference Signs: Electric appliance body 100; front panel 110; cylindrical shell 120; air inlet cavity 130; air outlet cavity 140; fan 200; filter element 300; filter box 400; air inlet passage 401; collection cavity 402; air passage 403; air inlet wall plate 410; arc-shaped flow guide section 420; flared extension plate 430; U-shaped retaining edge 440; cylindrical base 450; outer horn pipe 460; circular ring flange 461; inner horn pipe 470; buckle assembly 500. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described below in the detailed description and illustrated in the accompanying drawings by way of examples, which together serve to explain the present application, and are not understood as limiting the present application.

[0020] In the description of the present application, it needs to be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described that the first, the second is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0022] In the description of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Referring to Figures 1 to 3 The air purifier with filter box of the present application comprises: an electric appliance main body 100, which is provided with a fan 200 and a filter element 300; a filter box 400, which is arranged in the electric appliance main body 100, has an air inlet passage 401 with an opening downward, and is provided with a collection cavity 402 in the inside, which is communicated with the air inlet passage 401, and a plurality of air holes 403, which are communicated with the collection cavity 402; wherein the fan 200 drives the external fluid to pass through the air inlet passage 401, the collection cavity 402 and the air holes 403 in sequence and then pass through the filter element 300, so that the hair in the external fluid stays in the collection cavity 402.

[0024] The air purifier with the above structure is provided with the filter box 400 at the front end in the flow direction of the fluid, and the opening of the air inlet channel 401 is downward to face the ground. Under the suction of the fan 200, the hair on the ground is sucked into the air inlet channel 401 along with the surrounding air, and then the gas in the fluid entering the filter box 400 can reach the filter element 300 through the air hole 403, and the hair is collected in the collection cavity 402, thereby avoiding the problem that the hair adheres to the surface of the filter element 300 and is difficult to clean, reducing the influence of wind resistance on the filtering effect, and prolonging the service life of the filter element 300. It should be noted that the air hole can be at least one of a round hole, a square hole, and a long strip hole, and the size of the air hole is not limited to a specific numerical range and can be set according to actual tests, generally between 2 mm and 10 mm.

[0025] Referring to Figure 3 In some embodiments of the present application, two upwardly extending air inlet wall plates 410 are arranged inside the filter box 400, and the air inlet channel 401 is defined between the two air inlet wall plates 410. The upper end of at least one of the air inlet wall plates 410 is provided with an arc-shaped flow guide section 420 capable of guiding the fluid to flow to the collection cavity 402. It can be understood that the fluid entering from the air inlet channel 401 flows upwardly and flows toward one side of the collection cavity 402 under the wall attachment effect of the arc-shaped flow guide section 420. When the fan 200 is working, the gas in the collection cavity 402 is driven to flow to the filter element 300 through the air hole 403, and a negative pressure is formed in the collection cavity 402, thereby improving the efficiency of the fluid entering the collection cavity 402 from the air inlet channel 401 and reducing the turbulent flow of the gas.

[0026] Referring to Figure 3 In some embodiments of the present application, two air inlet wall plates 410 and the inner wall of the filter box 400 define one collection cavity 402 therebetween, and two collection cavities 402 are arranged on the two sides of the air inlet channel 401, respectively. The upper end of each of the two air inlet wall plates 410 is provided with the arc-shaped flow guide section 420, and the two arc-shaped flow guide sections 420 guide two streams of fluid to produce different directions of rotational motion, respectively. It can be understood that when the fan 200 is working, a negative pressure is formed in the two collection cavities 402 on the two sides of the air inlet channel 401. After the external fluid enters from the lower end of the air inlet channel 401, it flows upwardly to the upper end of the air inlet channel 401, and then is divided into two streams of gas under the flow guiding effect of the two arc-shaped flow guide sections 420 to flow to the two collection cavities 402, respectively, thereby forming an effect that one stream of gas rotates clockwise and the other stream of gas rotates counterclockwise, which is beneficial to the hair entering the middle and lower parts of the collection cavity 402 to collect more hair.

[0027] Referring to Figure 3In some embodiments of the present application, the arc-shaped flow guide section 420 and the inner top wall of the filter box 400 form a flow passage, which is located at the middle upper part of the filter box 400 in the height direction, the collection cavity 402 is located below the flow passage and communicates with the flow passage, and the wall plate of the filter box 400 corresponding to the flow passage is a solid plate. In this embodiment, the wall plate where the air vent hole 403 is arranged is a solid plate at the position corresponding to the flow passage, and the rest of the positions are all filled with the air vent hole 403, which is beneficial to reduce the air flow resistance, and the solid plate can avoid the problem that the hair is adsorbed at the flow passage and cannot enter the collection cavity 402.

[0028] Referring to Figure 3 In some embodiments of the present application, the filter box is a rectangular box, the long side of the rectangular box is arranged along the horizontal direction, and in order to increase the adsorption area on the ground, the lower end of each of the two sections of the air inlet wall plate 410 is connected with a flared extension plate 430, and the two flared extension plates 430 are arranged opposite to each other to define a horn opening communicating with the air inlet passage 401.

[0029] Referring to Figure 2 Alternatively Figure 4 In some embodiments of the present application, the front side of the appliance main body 100 is detachably mounted with a front panel 110, the filter box 400 has an inner surface facing the front panel 110 and a downward opening, the air inlet wall plate 410 is formed on the filter box 400, and the filter box 400 is detachably connected to the inner surface of the front panel 110 to define the air inlet passage 401 and the collection cavity 402. It can be understood that when it is necessary to clean the hair in the filter box 400, the front panel 110 is only needed to be detached from the appliance main body 100, and then the filter box 400 is detached from the front panel 110 to pour out the hair, which is very convenient for cleaning, and the front panel 110 constitutes a part of the collection cavity 402, which is beneficial to reduce the number of parts.

[0030] Referring to Figure 3 and Figure 4 In some embodiments of the present application, the opening edge of the filter box 400 has a U-shaped retaining edge 440, the opening of the U-shaped retaining edge 440 faces downward, the inner circumferential wall of the U-shaped retaining edge 440 and the inner surface of the front panel 110, and the side wall of the air inlet wall plate 410 away from the air inlet passage 401 and the inner surface of the front panel 110 are detachably connected through the buckle assembly 500, which is convenient to detach, can stably mount the filter box 400 on the front panel 110, and can also limit the air inlet wall plate 410 to avoid deformation, thereby ensuring the shape stability of the air inlet passage 401. Of course, in other embodiments, the buckle assembly 500 can also be replaced by a magnetic assembly or other detachable structure.

[0031] Referring to Figure 2 Or Figure 4 In some embodiments of the present application, the filter box 400, the filter element 300 and the fan 200 are arranged in sequence along the direction of travel of the external fluid, the filter box 400 is arranged at the lower part of the appliance body 100, and a plurality of air holes 403 are arranged on the side wall of the collection cavity 402 towards the filter element 300. In some embodiments, the filter box 400, the filter element 300 and the fan 200 are arranged in a horizontal direction, reducing the number of fluid turns and improving the working efficiency of filtration and purification. Among them, the filter element 300 can adopt a HEPA filter screen, which can effectively capture particles above 0.3 microns, including dust, pollen, part of bacteria and viruses, etc. by physical interception, and also has a certain adsorption capacity for most gaseous pollutants. Of course, in other embodiments, the filter element 300 can also adopt an electrostatic dust collection filter screen, which does not need to replace the filter screen frequently, has low maintenance cost, and can also kill part of the bacteria and viruses.

[0032] Referring to Figure 5 And Figure 6 In some embodiments of the present application, the filter box 400 is detachably mounted on the bottom wall of the appliance body 100 to support the appliance body 100 upward, the output end of the air inlet channel 401 is arranged upward, the collection cavity 402 and the air holes 403 are arranged around the outer periphery of the air inlet channel 401, and the air holes 403 penetrate the bottom wall of the appliance body 100 upward and downward. When the hair in the filter box 400 needs to be cleaned, the filter box 400 can be directly detached from the bottom of the appliance body 100, without the need to disassemble the shell of the appliance body 100, and the use is more convenient.

[0033] Referring to Figure 6In some embodiments of the present application, the electric appliance body 100 comprises a cylindrical shell 120, the filter element 300 is a cylindrical filter element arranged inside the cylindrical shell 120, the outer peripheral wall of the cylindrical filter element and the inner peripheral wall of the cylindrical shell 120 define an air inlet cavity 130 in communication with the air inlet hole 403, the internal passage of the cylindrical filter element constitutes an air outlet cavity 140, the filter box 400 comprises a cylindrical base 450, the middle part of the cylindrical base 450 is provided with an outer horn pipe 460 and an inner horn pipe 470 arranged coaxially with the outer horn pipe 460 being wide at the bottom and narrow at the top, the outer horn pipe 460 and the inner horn pipe 470 define the air inlet passage 401, the upper edge of the outer horn pipe 460 is provided with a circular ring flange 461 for guiding fluid to the collection cavity 402. Wherein, the outer peripheral wall of the cylindrical shell 120 is provided with air inlets at multiple positions, the air inlet passage 401 of the filter box 400 can adsorb hair and air near the ground, and the air inlets on the cylindrical shell 120 are used to suck air at a distance from the ground, thereby efficiently realizing the functions of hair and debris cleaning and air purification. The air inlet passage 401 surrounded by the outer horn pipe 460 and the inner horn pipe 470 can realize a larger flow rate and adsorb hair in a large area, after being discharged from the upper end of the air inlet passage 401, the hair and debris fall downward into the annular collection cavity 402 guided by the circular ring flange 461, and the gas continues to flow upward to enter the air inlet cavity 130, and then is discharged upward through the air outlet cavity 140 and the fan 200.

[0034] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0035] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air purifier with a filter cartridge, characterized in that, include: Electrical body (100), the electrical body (100) is provided with a fan (200) and a filter element (300); A filter box (400) is provided on the main body of the electrical appliance (100). The filter box (400) has an air inlet channel (401) with an opening facing downward. The filter box (400) has a collection chamber (402) inside that communicates with the air inlet channel (401). The filter box (400) is provided with a plurality of vent holes (403) that communicate with the collection chamber (402). The fan (200) drives the external fluid through the air intake channel (401), the collection chamber (402) and the vent (403) in sequence, and then through the filter element (300) so that the hair in the external fluid stays in the collection chamber (402).

2. An air purifier with a filter box according to claim 1, characterized in that: The filter box (400) is provided with two upwardly extending air intake wall panels (410) at intervals inside, and the air intake channel (401) is defined between the two air intake wall panels (410). At least one of the air intake wall panels (410) has an arc-shaped drainage section (420) at the upper end that can guide the fluid to flow to the collection chamber (402).

3. An air purifier with a filter box according to claim 2, characterized in that: Each of the two air intake wall panels (410) and the inner wall of the filter box (400) defines a collection chamber (402). The two collection chambers (402) are arranged opposite to each other on both sides of the air intake channel (401). The upper end of each of the two air intake wall panels (410) is provided with an arc-shaped flow guide section (420). The two arc-shaped flow guide sections (420) respectively guide two streams of fluid to generate swirling motions in different clockwise directions.

4. An air purifier with a filter box according to claim 2, characterized in that: A flow channel is formed between the arc-shaped flow section (420) and the inner top wall of the filter box (400). The flow channel is located in the upper middle part of the filter box (400) in the height direction. The collection chamber (402) is located below the flow channel and is connected to the flow channel. The wall panel of the filter box (400) corresponding to the flow channel is a solid plate.

5. An air purifier with a filter box according to claim 2, characterized in that: The filter box (400) is a rectangular box with its long side arranged horizontally. The lower ends of the two sections of the air intake wall panel (410) are connected to flared extension plates (430). The two flared extension plates (430) are arranged opposite to each other to define a flared opening that communicates with the air intake channel (401).

6. An air purifier with a filter box according to claim 2, characterized in that: The front panel (110) is detachably mounted on the front side of the electrical body (100). The filter box (400) has an inner surface facing the front panel (110) and a downward opening. The air intake wall panel (410) is formed on the filter box (400). The filter box (400) is detachably connected to the inner surface of the front panel (110) to define the air intake channel (401) and the collection chamber (402).

7. An air purifier with a filter box according to claim 6, characterized in that: The filter box (400) has an inverted flange (440) at its open edge. The opening of the inverted flange (440) faces downward. The inner peripheral wall of the inverted flange (440) and the inner surface of the front panel (110) are detachably connected by a snap-fit ​​assembly (500). The side wall of the air intake wall panel (410) facing away from the air intake channel (401) and the inner surface of the front panel (110) are also detachably connected by a snap-fit ​​assembly (500).

8. An air purifier with a filter box according to claim 1, characterized in that: The filter box (400), the filter element (300) and the fan (200) are arranged sequentially along the direction of travel of the external fluid. The filter box (400) is located at the lower part of the electrical body (100), and a plurality of vent holes (403) are distributed on the side wall of the collection chamber (402) facing the filter element (300).

9. An air purifier with a filter box according to claim 8, characterized in that: The filter box (400) is detachably installed on the bottom wall of the electrical body (100) to support the electrical body (100) upward. The output end of the air inlet channel (401) is set upward. The collection chamber (402) and the vent (403) are arranged around the outer periphery of the air inlet channel (401). The vent (403) penetrates the bottom wall of the electrical body (100) vertically.

10. An air purifier with a filter box according to claim 9, characterized in that: The electrical body (100) includes a cylindrical shell (120), and the filter element (300) is a cylindrical filter element disposed inside the cylindrical shell (120). The outer peripheral wall of the cylindrical filter element and the inner peripheral wall of the cylindrical shell (120) define an air inlet chamber (130) that communicates with the vent (403). The internal channel of the cylindrical filter element forms an exhaust chamber (140). The filter box (400) includes a cylindrical base (450). The middle part of the cylindrical base (450) is provided with an outer horn pipe (460) that is wider at the bottom and narrower at the top and an inner horn pipe (470) that are arranged coaxially. The air inlet channel (401) is defined between the outer horn pipe (460) and the inner horn pipe (470). The upper edge of the outer horn pipe (460) is provided with an annular flange (461) that guides the fluid to the collection chamber (402).

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