Filter with flow guide structure

Abstract

The utility model discloses a filter with a flow guide structure, which comprises a columnar filter element, the middle of the filter element longitudinally penetrates to form a columnar cavity, the top and the bottom of the filter element are respectively provided with an end cover, and the top and the bottom of the cavity are respectively provided with a flow guide cover connected with the end cover. The flow guide cover is of a net-shaped arc surface, and the arc surface is sunken towards the interior of the cavity. And air flows into the cavity along the outer peripheral surface of the filter element and flows out from the outer peripheral surface of the flow guide cover to the arc center direction of the arc surface. The filter provided by the utility model integrates air filtration and flow guide, and the flow guide cover is arranged in the cavity of the filter, so that on one hand, air flow noise can be reduced while air is filtered; on the other hand, extra space is not occupied, and the height of the whole machine can be effectively controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification, and particularly relates to a filter with a flow guiding structure. Background Art

[0002] With the improvement of living standards, users' requirements for the quality of the living environment are constantly increasing, and with the continuous improvement of safety awareness, indoor quality problems have been paid more attention by more people, and the requirements for air purifiers on the market are getting higher and higher. Due to the impact and collision between the air flow formed by the high-speed rotation of the fan and the fan in a conventional air purifier, a relatively large noise is generated, which brings a bad experience to users. In order to solve the noise problem, some air purifiers add a flow guiding structure in the air duct to guide the air entering the air duct and reduce the noise. However, the flow guiding structure needs to occupy a certain space, resulting in an increase in the overall structure of the air purifier.

[0003] For the above reasons, it is necessary to further study the existing air purifiers in order to solve the above problems. Summary of the Utility Model

[0004] The utility model provides a filter with a flow guiding structure to solve the problems of high noise of the air purifier in the prior art solution and the increase in the overall structure of the whole machine due to the flow guiding structure occupying the air duct space.

[0005] A filter with a flow guiding structure includes a columnar filter element. A columnar cavity is longitudinally formed through the middle of the filter element. End caps are respectively arranged at the top and bottom of the filter element. Flow guiding covers connected to the end caps are respectively arranged at the top and bottom of the cavity. The flow guiding covers are in a net-shaped arc surface and the arc surface is recessed towards the inside of the cavity. Air flows into the cavity along the outer peripheral surface of the filter element and flows out along the outer peripheral surface of the flow guiding cover towards the center of the arc of the arc surface.

[0006] Preferably, the end surface of the flow guiding cover at the top of the cavity is flush with the end cap at the top of the filter element, and the end surface of the flow guiding cover at the bottom of the cavity is flush with the end cap at the bottom of the filter element.

[0007] Preferably, the two flow guiding covers are symmetrically distributed along the horizontal axis of the cavity.

[0008] Preferably, the longitudinal height of the cavity is greater than 3 times the longitudinal height of the flow guiding cover.

[0009] Preferably, the arc surface of the flow guiding cover is formed by connecting a plurality of annular ribs and radial ribs with a certain width to form a net-shaped air passing opening, and the annular ribs and the radial ribs face the center of the arc of the arc surface along the width direction.

[0010] Preferably, the air passing areas of any of the air passing openings are equal.

[0011] Preferably, the fairing is detachably connected to the end cap.

[0012] Preferably, a handle is provided on the bottom surface of the fairing.

[0013] Preferably, the filter element includes at least one of a grille, charcoal, or a HEPA filter.

[0014] Preferably, a drawstring is longitudinally provided between the two end caps.

[0015] The utility model has the following beneficial effects:

[0016] (1) The filter with a flow guiding structure of the utility model integrates air filtration and flow guiding, is applied in an air purifier, and can filter air while reducing air flow noise.

[0017] (2) For the filter with a flow guiding structure of the utility model, the fairing is arranged in the cavity of the filter, without occupying extra space, and can effectively control the height of the whole machine.

[0018] (3) For the filter with a flow guiding structure of the utility model, the fairing is detachably connected to the filter. On the one hand, it is convenient for assembly, and on the other hand, it is convenient to disassemble and clean the fairing or replace the filter element. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts. In addition, in the drawings, the same components are denoted by the same reference numerals, and the drawings are not drawn to actual scale.

[0020] Figure 1 It is a longitudinal sectional structure diagram of the filter with a flow guiding structure in a specific embodiment of the present utility model;

[0021] Figure 2 It is an overall structure diagram of the filter with a flow guiding structure in a specific embodiment of the present utility model;

[0022] Figure 3 It is a connection structure diagram of the fairing and the filter in a specific embodiment of the present utility model;

[0023] Figure 4 It is a structure diagram of the fairing in a specific embodiment of the present utility model.

[0024] Explanation of the Reference Numerals in the Drawings

[0025] 100 - Filter with a flow guiding structure;

[0026] 110-filter element; 111-cavity; 112-end cover; 113-pull strap; 114-card slot;

[0027] 120 - air deflector; 121 - annular rib; 122 - radial rib; 123 - air outlet; 124 - buckle; 125 - handle. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments disclosed in the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Specific embodiments

[0031] Please refer to Figures 1 - 4 The utility model provides a filter 100 with a flow guide structure, including a columnar filter element 110, the middle part of the filter element 110 is longitudinally penetrated to form a columnar cavity 111, the top and bottom of the filter element 110 are respectively provided with end covers 112, the top and bottom of the cavity 111 are respectively provided with flow guide covers 120 connected to the end covers 112, the flow guide covers 120 are present in a mesh arc surface and the arc surface is recessed into the cavity 111; air flows into the cavity 111 along the outer peripheral surface of the filter element 110, and flows out along the outer peripheral surface of the flow guide cover 120 towards the arc center of the arc surface.

[0032] Please refer to Figures 1 - 3 When the air flows into the cavity 111 along the side surface of the filter element 110, the filter element 110 first filters it to remove particulate matter in the air; the filtered air flows outward along the guide covers 120 at the top and bottom of the cavity 111 under the action of the external fan. When the air flows through the guide cover 120, the guide cover 120 collects the air flows in all directions on the arc surface, thereby reducing the impact and collision between the air and the fan in the air purifier, which can effectively reduce the noise of the air purifier.

[0033] Specifically, when the air flow converges towards the center of the arc surface under the action of the external fan, the air flow velocity and direction at different positions are different. The air flows through the mesh arc surface, causing the air flow direction to change and flow in a set direction. The irregular air flow on the outer peripheral surface of the deflector 120 can be separated into several directional air flows, reducing the angle of change of the air flow direction when entering the arc surface.

[0034] In this embodiment, the arc surface of the deflector 120 is recessed into the cavity 111. Compared with the existing technical solution of arranging the deflector 120 in the air duct of the air purifier, the utility model can effectively limit the overall height of the machine.

[0035] This embodiment does not further limit the shapes of the filter element 110 and the cavity 111. Preferably, the filter element 110 and the cavity 111 are designed with rounded corners so that the air flow flowing into the cavity 111 from all directions can flow uniformly towards the deflector 120, and the air in the cavity 111 can be fully deflected, thereby effectively reducing the air flow noise.

[0036] In a more preferred embodiment, the end face of the deflector 120 at the top of the cavity 111 is flush with the end cover 112 at the top of the filter element 110, and the end face of the deflector 120 at the bottom of the cavity 111 is flush with the end cover 112 at the bottom of the filter element 110. On the one hand, in terms of the longitudinal height, the deflector 120 is entirely located within the cavity 111 of the filter element 110, without occupying any extra space, and can minimize the overall height of the machine to the greatest extent; on the other hand, the deflector 120 is located at both the top and bottom ends of the cavity 111, reserving sufficient flow space for the air flow in the cavity 111, so that the air flow can be effectively deflected.

[0037] In a more preferred embodiment, the two deflectors 120 are symmetrically distributed along the horizontal axis of the cavity 111. Please refer to Figure 1 , the two deflectors 120 are axially symmetrically distributed at the top and bottom of the cavity 111, so that the air flow flowing out along the top deflector 120 and the air flow flowing out along the bottom deflector 120 have the same deflector effect, thereby realizing uniform air outlet at the top and bottom of the filter 100.

[0038] In a more preferred embodiment, the longitudinal height of the cavity 111 is greater than three times the longitudinal height of the deflector 120. When the air flow flows into the cavity 111 along the side circumference of the filter element 110, the longitudinal height of the mixed flow in the cavity 111 is greater than the longitudinal height of the deflector 120, so that the air flow is fully mixed in the cavity 111 and then deflected by the deflector 120, resulting in more uniform air outlet and less noise.

[0039] In a more preferred embodiment, please refer to Figure 4, the arc surface of the fairing 120 is formed by connecting a plurality of annular ribs 121 and radial ribs 122 with a certain width to form a mesh air vent 123. The annular ribs 121 and the radial ribs 122 face the center of the arc of the arc surface in the width direction to divert the irregularly flowing air towards the center of the arc of the arc surface.

[0040] In a more preferred embodiment, the air passing area of any air vent 123 is equal. When the air flows through the air vent 123, it is evenly divided at any air vent 123, which can maximize the air flow velocity when the air flows out of the fairing 120.

[0041] In a more preferred embodiment, the fairing 120 is detachably connected to the end cap 112. On the one hand, it is convenient for assembly, and on the other hand, it is convenient to disassemble and clean the fairing 120 or replace the filter element 110.

[0042] Specifically, please refer to Figure 3 , at least one buckle 124 is provided on the periphery of the fairing 120. Correspondingly, a clamping groove 114 adapted to the buckle 124 is provided on the end cap 112; the buckle 124 and the clamping groove 114 cooperate to realize the snap connection between the fairing 120 and the end cap 112. More specifically, the number of buckles 124 is 4, and the buckles 124 are evenly distributed on the periphery of the fairing 120. Correspondingly, the number of clamping grooves 114 is 4, and the clamping grooves 114 are evenly distributed on the inner periphery of the end cap 112. In other embodiments, the fairing 120 and the end cap 112 can also be connected by means of screws.

[0043] In a more preferred embodiment, a handle 125 is provided on the bottom surface of the fairing 120. The fairing 120 can be taken out from the cavity 111 of the filter element 110 by lifting the handle 125, which is convenient for disassembly.

[0044] In a more preferred embodiment, the filter element 110 includes at least one of a grille, carbon, or a HEPA filter.

[0045] In a more preferred embodiment, a pull belt 113 is longitudinally provided between the two end caps 112. The filter 100 can be taken out of the air purifier body by pulling the pull belt 113.

[0046] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filter with a flow guide structure, characterized in that: The invention comprises a columnar filter element (110), wherein the middle part of the filter element (110) is longitudinally penetrated to form a columnar cavity (111), the top and bottom of the filter element (110) are respectively provided with end covers (112), the top and bottom of the cavity (111) are respectively provided with air guide covers (120) connected to the end covers (112), the air guide covers (120) are in the form of a mesh arc surface, and the arc surface is recessed into the cavity (111); air flows into the cavity (111) along the outer peripheral surface of the filter element (110), and flows out along the outer peripheral surface of the air guide cover (120) in the direction of the arc center of the arc surface.

2. The filter with a flow guide structure according to claim 1, characterized in that: The end surface of the air guide cover (120) at the top of the cavity (111) is flush with the end cover (112) at the top of the filter element (110), and the end surface of the air guide cover (120) at the bottom of the cavity (111) is flush with the end cover (112) at the bottom of the filter element (110).

3. The filter with a flow guide structure according to claim 1, characterized in that: The two air guide covers (120) are symmetrically distributed along the horizontal axis of the cavity (111).

4. The filter with a flow guide structure according to claim 3, characterized in that: The longitudinal height of the cavity (111) is greater than three times the longitudinal height of the air guide cover (120).

5. The filter with a flow guide structure according to claim 1, characterized in that: The arc surface of the air deflector (120) is connected by a plurality of annular ribs (121) and radial ribs (122) with a certain width to form a mesh air outlet (123), and the annular ribs (121) and the radial ribs (122) are oriented toward the arc center of the arc surface along the width direction.

6. The filter with a flow guide structure according to claim 5, characterized in that: The air flow areas of any of the air flow openings (123) are equal.

7. The filter with a flow guide structure according to claim 1, characterized in that: The air guide cover (120) is detachably connected to the end cover (112).

8. The filter with a flow guide structure according to claim 7, characterized in that: A handle (125) is provided on the bottom surface of the deflector cover (120).

9. The filter with a flow guide structure according to claim 1, characterized in that: The filter element (110) includes at least one of a grid, carbon, or a HEPA filter.

10. The filter with a flow guide structure according to claim 1, characterized in that: A drawstring (113) is longitudinally arranged between the two end covers (112).

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