CN217939552U

CN217939552U - Filter structure and air treatment equipment

Info

Publication number: CN217939552U
Application number: CN202221962539.1U
Authority: CN
Inventors: 柯圣国
Original assignee: Dongguan Zhilun Technology Co ltd
Current assignee: Dongguan Zhilun Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-02
Anticipated expiration: 2032-07-27

Abstract

The application provides a filter structure and air treatment equipment, wherein the air treatment equipment comprises the filter structure; the filtering structure comprises an outer frame, a first filtering piece and a second filtering piece; the first filter piece and the second filter piece are sequentially arranged in the outer frame, the first filter piece is used for filtering micron-level particulate matters in the air, and the second filter piece is used for adsorbing and filtering volatile organic matters in the air after passing through the first filter piece; the second filters a week outward flange facing and is equipped with the absorption piece, scribbles on the absorption piece and is equipped with first adhesive, and the first piece that filters a week outward flange and the second filter a week outward flange and pass through first adhesive sealing connection, absorbs the piece and is used for adsorbing first adhesive. This application not only can filter a sealing connection with the second with first filtering, can also prevent that first adhesive from flowing into the filtration pore, has guaranteed filter assembly's filter effect.

Description

Filter structure and air treatment equipment

Technical Field

The application belongs to the technical field of air filtration, and more specifically relates to a filtration and air treatment equipment.

Background

The air purifier is a household appliance product which can adsorb, decompose or convert various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde and other decoration pollution, bacteria, allergen and the like) and effectively improve the air cleanliness. The H13 grade HEPA filter screen in the air purifier requires that the filtering efficiency of the particulate matters with the particle size of 0.1-0.3 mu m reaches 99.97%. Although the H13-grade HEPA filter screen itself can achieve the effect of 99.97% of the filtering efficiency of the particles with the particle size of 0.1-0.3 μm, in the application, since the HEPA filter screen is installed and a gap is formed between the HEPA filter screen and other structures, air may flow through the gap without passing through the HEPA filter screen, and finally the filtering effect of the air purifier does not achieve the preset effect.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a filtration and air treatment equipment to solve the technical problem that the filter effect that exists among the prior art because the installation clearance leads to the filter screen does not reach the effect of predetermineeing.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing a filtering structure, which comprises an outer frame, a first filtering piece and a second filtering piece; the first filter piece and the second filter piece are sequentially arranged in the outer frame, the first filter piece is used for filtering micron-level particulate matters in the air, and the second filter piece is used for adsorbing and filtering volatile organic matters in the air after passing through the first filter piece; the second filter a week outward flange facing is equipped with the absorption piece, scribble on the absorption piece and be equipped with first adhesive, the first filter a week outward flange with the second filter a week outward flange passes through first adhesive sealing connection, it is right to absorb the piece be used for first adhesive adsorbs.

In one possible design, the first adhesive is applied to a peripheral outer edge of the absorbent sheet.

In one possible design, the absorbing sheet is a non-woven sheet, a soft sheet or a silicone sheet.

In one possible design, a peripheral outer side wall of the first filter element is hermetically connected with a peripheral inner side wall of the outer frame;

and/or one circle of outer side wall of the second filter element is hermetically connected with one circle of inner side wall of the outer frame.

In one possible design, a first filling layer is filled between one circle of outer side wall of the first filter element and one circle of inner side wall of the outer frame;

or a second adhesive is filled between one circle of outer side wall of the first filter and one circle of inner side wall of the outer frame;

or a first filling layer and a second adhesive are filled between one circle of outer side wall of the first filter element and one circle of inner side wall of the outer frame.

In a possible design, the first filling layer is a non-woven fabric layer, a soft adhesive layer or a silicone layer.

In one possible design, a second filling layer is filled between one circle of outer side wall of the second filter element and one circle of inner side wall of the outer frame;

or a third adhesive is filled between one circle of outer side wall of the second filter element and one circle of inner side wall of the outer frame;

or a second filling layer and a third adhesive are filled between one circle of outer side wall of the second filter and one circle of inner side wall of the outer frame.

In one possible design, the second filling layer is a non-woven fabric layer, a soft glue layer or a silica gel layer.

A first filling layer is filled between one circle of outer side wall of the first filter element and one circle of inner side wall of the outer frame;

a second filling layer is filled between one circle of outer side wall of the second filter element and one circle of inner side wall of the outer frame;

the first filling layer is fixedly adhered through the first adhesive overflowing from the absorption sheet;

the second filling layer is fixed by the first adhesive overflowing from the absorption sheet.

In a possible design, the filter structure further comprises a primary filter screen, the primary filter screen is mounted on the outer frame, and the primary filter screen is arranged on one side of the first filter element deviating from the second filter element.

In one possible design, the outer frame is a paper frame, and the paper frame comprises two L-shaped paper boards which are overlapped at the joint and bonded through a bonding piece.

The application provides a filtration's beneficial effect lies in: the utility model provides a filtration, through pasting at the second and establishing the absorption piece at the a week outward flange, then scribble and establish first adhesive on the absorption piece, thereby can realize through first adhesive that the second filters the sealing connection between piece and the first filtration piece, prevent that the air from not passing through first filtration piece and directly getting into the second from the junction that first filtration piece and second filtered the piece, also be so that the air need pass through first filtration piece and have filtered the micron level particulate matter in the air after, just can pass through the second filtration piece with filtering the volatile organic compounds in the air, thereby can guarantee the filtration quality of the air after this filtration, and then the air quality that uses the air treatment equipment exhaust of this filtration has been improved. In addition, the absorption sheet can adsorb the first adhesive agent piled thereon to prevent the first adhesive agent from flowing to the filter holes in the second filter member to block the filter holes, thereby ensuring the filtering effect of the second filter member.

In another aspect, the present application further provides an air treatment device including the above-described filter structure.

The application provides an air treatment equipment's beneficial effect lies in: the air treatment equipment provided by the embodiment of the application is high in quality of air exhausted by the air treatment equipment through the arrangement of the filtering structure, and experience is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic front perspective view of a filter structure provided in an embodiment of the present application;

FIG. 2 is a rear perspective view of the filter structure of FIG. 1;

FIG. 3 is an exploded view of the filter structure of FIG. 1;

FIG. 4 is a schematic longitudinal cross-sectional view of the filter structure of FIG. 1;

FIG. 5 is an enlarged view of a portion A of FIG. 4;

FIG. 6 is a schematic illustration of the filter construction of FIG. 1 with the primary filter web and the first filter element removed;

fig. 7 is a schematic structural view of the outer frame in fig. 1.

Wherein, in the figures, the respective reference numerals:

100. an outer frame; 101. a base plate; 102. a side plate; 103. a top plate; 104. mounting holes; 105. a paperboard; 200. a primary filter screen; 300. a first filter member; 400. a second filter member; 410. a filtration pore; 420. a filter hole distribution area; 500. an absorbent sheet; 600. a first filling layer; 700. a second filling layer; 800. sealing cotton; 900. a handle.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, a filtering structure provided in an embodiment of the present application will now be described. The filtering structure is used in air treatment equipment to filter air, so that the quality of the air exhausted by the air treatment equipment is high, and the body and mind health of a human body is facilitated.

Referring to fig. 1 to 5, the filter structure includes an outer frame 100, a first filter 300, and a second filter 400. The first filter 300 and the second filter 400 are sequentially disposed in the outer frame 100, and the external air is sequentially filtered by the first filter 300 and the second filter 400. The first filter 300 is used for filtering micron-sized particulate matters in the air, and the second filter 400 is used for adsorbing and filtering volatile organic compounds in the air after passing through the first filter 300. An absorbing sheet 500 is attached to a peripheral outer edge of the second filter member 400, the absorbing sheet 500 is coated with a first adhesive, the peripheral outer edge of the first filter member 300 is sealingly connected to a peripheral outer edge of the second filter member 400 by the first adhesive, and the absorbing sheet 500 is used for adsorbing the first adhesive to prevent the first adhesive from entering the filter holes 410 of the second filter member 400.

When the installation is carried out, the second filter element 400 is firstly installed in the outer frame 100, then a layer of the absorbing sheet 500 is adhered to the outer edge of the second filter element 400, then the hot melt adhesive is coated on the absorbing sheet 500, the hot melt adhesive is firstly accumulated on the outer edge of the absorbing sheet 500 and then overflows between the absorbing sheet 500 and the outer frame 100 and between the second filter element 400 and the outer frame 100, so as to fix the absorbing sheet 500 and the outer frame 100 and simultaneously fix the second filter element 400 and the outer frame 100; finally, the first filter element 300 is placed in the outer frame 100, so that the outer edge of the first filter element 300 corresponds to the outer edge of the second filter element 400, and the pressure is maintained for 60 seconds by using an air compressor, after the hot melt adhesive is cooled, the sealing between the outer edges of the first filter element 300 and the second filter element 400 is completed, and the air is prevented from directly entering the second filter element 400 from the joint of the first filter element 300 and the second filter element 400 without passing through the first filter element 300.

In this embodiment, the second filter member 400 and the first filter member 300 are fixed to each other by applying hot melt adhesive to the absorbent sheet 500. It is understood that in other embodiments of the present application, other types of first adhesives, such as glue or paste adhesives, may be coated on the absorbent sheet 500, and are not limited herein.

In this application, through pasting at the outer edge of a week of second filter piece 400 and establishing absorption piece 500, then scribble and establish first adhesive on absorption piece 500, thereby can realize the sealing connection between second filter piece 400 and the first filter piece 300 through first adhesive, prevent that the air from not passing through first filter piece 300 and directly getting into second filter piece 400 from the junction of first filter piece 300 and second filter piece 400, also be so that the air need pass through first filter piece 300 in order to filter the micron level particulate matter in the air after, can pass through second filter piece 400 in order to filter the volatile organic compounds in the air, thereby can guarantee the filtration quality of the air after this filter structure, and then the air quality that the air treatment equipment who has improved this filter structure discharged. In addition, the absorbent sheet 500 can adsorb the first adhesive agent accumulated thereon to prevent the first adhesive agent from flowing toward the filter holes 410 in the second filter member 400 to block the filter holes 410, thereby securing the filtering effect of the second filter member 400.

In one embodiment, referring to fig. 1, 3 and 4, the filter structure further includes a primary filter 200, the primary filter 200 is mounted on the outer frame 100, the primary filter 200 is disposed on a side of the first filter 300 away from the second filter 400, and specifically, the primary filter 200, the first filter 300 and the second filter 400 are sequentially disposed along a flow direction of the air. The mesh accuracy of the primary filter screen 200 is within the range of 5-10 microns, and the primary filter screen 200 can be a silver ion filter screen or a polypropylene filter screen. The primary filter 200 is mainly used to pre-treat large particles, hairs, paper dust, etc. of the air to ensure a life cycle of the following first and

second filter members

300 and 400. In addition, the primary filter screen 200 is detachably installed in the outer frame 100, and the primary filter screen 200 is detachable and directly washed by water, so that the service life of the primary filter screen 200 can be prolonged.

Optionally, the first filter 300 is a HEPA filter, which is the core of the whole filter structure and is mainly used to effectively intercept particulate matter of 0.1-0.3 micron in the air, allowing only gas molecules to pass through. It is understood that, in other embodiments of the present application, the first filter element 300 may also adopt other types of filter screens according to the filtering requirements of the filter structure, for example, the first filter element can intercept particles of 0.9 microns, 0.7 microns, 0.5 microns or 0.3 microns, and specifically, the first filter element can filter particles through a non-woven fabric, a filter cotton or an ULPA filter, which is not limited herein.

The second filter 400 may be an activated carbon filter for filtering out volatile organic compounds such as formaldehyde, toluene, hydrogen sulfide, chlorobenzene, etc. in the air and filtering out contaminants in the air. The activated carbon filter screen comprises aluminum honeycombs, plastic honeycombs and paper honeycombs as carriers, and activated carbon particles are filled in the carriers. The activated carbon is divided into coal carbon, coconut shell carbon, fruit shell carbon, GTF carbon, carlsang carbon and the like, and the higher the adsorption point value of the activated carbon is, the stronger the adsorption capacity is, and the better the removal effect is.

Alternatively, the first adhesive is applied to the outer edge of the periphery of the absorbent sheet 500, and the absorbent effect of the absorbent sheet 500 on the first adhesive is added, so that the first adhesive is firstly accumulated on the outer edge of the absorbent sheet 500 and then overflows between the absorbent sheet 500 and the outer frame 100, and does not overflow from the absorbent sheet 500 to the filter holes 410 in the second filter member 400, thereby further preventing the filter holes 410 from being blocked.

Alternatively, the absorbent sheet 500 may be a nonwoven fabric sheet. Referring to fig. 6, the second filter 400 includes a filter hole distribution area 420 and an edge area (not shown), wherein the filter holes 410 are uniformly distributed in the filter hole distribution area 420, and the edge area surrounds the periphery of the filter hole distribution area 420. The non-woven fabric is cut into a non-woven fabric sheet according to the size of the edge region of the second filter member 400, the size of the non-woven fabric sheet is made equal to or slightly smaller than the size of the edge region, and finally the non-woven fabric sheet is attached to the edge region. The non-woven fabric is absorbent and flexible, and can be used for filling uneven parts between the first filter element 300 and the second filter element 400 and adsorbing hot melt adhesive to prevent the hot melt adhesive from flowing to the filter hole distribution region 420 to block the filter holes 410. It can be understood that, in other embodiments of the present application, according to actual design conditions and specific requirements, the absorbing sheet 500 may also be a soft sheet or a silicone sheet, as long as it has a certain adsorption effect on the hot melt adhesive, and this is not limited herein.

In one embodiment, a circumferential outer side wall of the first filter 300 is hermetically connected to a circumferential inner side wall of the outer frame 100; a circumferential outer side wall of the second filter 400 is hermetically connected to a circumferential inner side wall of the outer frame 100. That is, on the basis of the sealing connection between the first filter 300 and the second filter 400, the first filter 300 is also sealed and connected to the outer frame 100, and the second filter 400 is sealed and connected to the outer frame 100, so that the air entering the filter assembly cannot directly flow out of the filter assembly from the first gap between the first filter 300 and the outer frame 100 and the second gap between the second filter 400 and the outer frame 100, or directly flow into the second filter 400 from the first gap through the third gap between the first filter 300 and the second filter 400. In summary, with the above-mentioned multiple sealing structure design, the air entering the filter assembly needs to pass through the first filter 300 and the second filter 400 in sequence before flowing out of the filter assembly, so as to ensure the filtering effect of the whole filter assembly. It should be understood that, in other embodiments of the present application, depending on the actual design, only the first filter 300 may be hermetically connected to the outer frame 100, or only the second filter 400 may be hermetically connected to the outer frame 100, and it is also possible to ensure that the air entering the filter assembly needs to be filtered by the first filter 300 and the second filter 400 in sequence before flowing out of the filter assembly, which is not limited herein.

In one embodiment, referring to fig. 3 and 5, a first filling layer 600 and a second adhesive are filled between the outer sidewall of the first filter 300 and the inner sidewall of the outer frame 100. In practice, the first filling layer 600 is first attached to the outer side wall of the first filter 300, and then the second adhesive is applied on the basis of the first filling layer 600. In the actual design process, because processing or assembly error often hardly guarantee that the lateral wall of first filter piece 300 and the inside wall of frame 100 laminate completely, through the design of first filling layer 600, can pack the first clearance between the lateral wall of first filter piece 300 and the inside wall of frame 100, and the second adhesive not only plays the fixed action between first filter piece 300, first filling layer 600 and the frame 100, also can further realize the sealed in first clearance simultaneously. It is understood that, in other embodiments of the present application, when the first gap between the first filter 300 and the outer frame 100 is smaller, the second adhesive may be directly applied without providing the first filling layer 600, or the first filling layer 600 may be directly tightly sealed between the outer frame 100 and the first filter 300 without applying the second adhesive, which is not limited herein.

Optionally, the first filling layer 600 may be a non-woven fabric layer, a soft glue layer, or a silicone layer, which not only has a filling function, but also can adsorb the second adhesive to prevent the second adhesive from overflowing.

In one embodiment, referring to fig. 5, a second filling layer 700 and a third adhesive are filled between the outer sidewall of the second filter 400 and the inner sidewall of the outer frame 100. In practice, the second filling layer 700 is first attached to the outer side wall of the second filter 400, and then a third adhesive is applied on the basis of the second filling layer 700. In the actual design process, due to processing or assembly errors, it is often difficult to ensure that the outer side wall of the second filter 400 is completely attached to the inner side wall of the outer frame 100, through the design of the second filling layer 700, the second gap between the outer side wall of the second filter 400 and the inner side wall of the outer frame 100 can be filled, and the third adhesive not only plays a role in fixing the second filter 400, the second filling layer 700 and the outer frame 100, but also can further realize the sealing of the second gap. It is understood that, in other embodiments of the present application, when the second gap between the second filter 400 and the outer frame 100 is small, the third adhesive may be directly applied without disposing the second filling layer 700, or the second filling layer 700 may be directly tightly sealed between the outer frame 100 and the second filter 400 without applying the third adhesive, which is not limited herein.

Optionally, the second filling layer 700 may be a non-woven fabric layer, a soft glue layer or a silica gel layer, which not only has a filling function, but also can adsorb the third adhesive to prevent the third adhesive from overflowing.

In another embodiment of the present application, the processes of the second adhesive and the third adhesive may not be performed. Specifically, the first filling layer 600 is filled between a circle of outer side wall of the first filter 300 and a circle of inner side wall of the outer frame 100; a second filling layer 700 is filled between one circle of outer side wall of the second filter 400 and one circle of inner side wall of the outer frame 100; the first filling layer 600 is fixedly attached by the first adhesive overflowing from the absorbent sheet 500; the second filling layer 700 is fixedly attached by the first adhesive overflowing from the absorbent sheet 500. In other words, it is possible to simplify the assembly process of the entire filter structure and reduce the assembly cost by coating the absorbent sheet 500 with a sufficient amount of the first adhesive so that the first adhesive can overflow into the first filling layer 600 between the first filter member 300 and the outer frame 100 to fix the first filling layer 600, and at the same time, so that the first adhesive can overflow into the second filling layer 700 between the second filter member 400 and the outer frame 100 to fix the second filling layer 700.

In one embodiment, referring to fig. 7, the outer frame 100 is a paper frame, the paper frame includes two L-shaped paper boards 105, the two paper boards 105 are overlapped at the joint and bonded by an adhesive, wherein the Q region is an overlapping region of the two paper boards 105. Specifically, a sealant may be coated on an end inner sidewall of one of the paper sheets 105, and then an end outer sidewall of the other paper sheet 105 may be attached to the sealant, so that the two paper sheets 105 are completely attached to each other, air is prevented from flowing through a joint of the two paper sheets 105 without passing through the first filter 300 or the second filter 400, and thus, a filtering effect of the entire filter assembly is ensured.

Referring to fig. 7, the frame 100 includes a bottom plate 101, side plates 102, and a top plate 103. The bottom plate 101 and the top plate 103 are both frame-shaped, and the side plates 102 enclose to form a square box-shaped structure and have a top opening and a bottom opening. The bottom plate 101 is connected to the bottom peripheral edge of the side plate 102, and the top plate 103 is connected to the top peripheral edge of the side plate 102. The second filter member 400 is fixed to the bottom plate 101 at a peripheral edge thereof, the first filter member 300 is fixed to the second filter member 400 by a non-woven fabric sheet and a first adhesive, and the primary filter member 200 is fixed to the top plate 103 at a peripheral edge thereof. The outside air is filtered by the primary filter 200 and then sequentially filtered by the first filter 300 and the second filter 400.

In one embodiment, referring to fig. 1 to 3, the sealing cotton 800 is sleeved on an outer side wall of one end of the outer frame 100 where the primary filter screen 200 is installed, and the sealing cotton 800 is used for realizing the sealing connection between the outer frame 100 and an external structure, so that the external air flows to the filter assembly completely to ensure the filtering effect of the air.

In one embodiment, referring to fig. 1, 3 and 7, the filtering structure further includes a handle 900, the handle 900 is mounted on the outer frame 100, and the handle 900 is used for a worker to lift the filtering structure to carry the filtering structure.

Specifically, the handle 900 is of a flexible fabric structure, the handle 900 has two mounting ends, the top plate 103 of the outer frame 100 is provided with two mounting holes 104, and the two mounting ends respectively penetrate through the two mounting holes 104 and are fastened, so that the handle 900 is mounted on the outer frame 100.

In another aspect, the present application further provides an air treatment device including the above-described filter structure. Wherein, the air treatment equipment can be an air purifier, an air conditioner, a humidifier and the like.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filter structure is characterized by comprising an outer frame, a first filter piece and a second filter piece; the first filter piece and the second filter piece are sequentially arranged in the outer frame, the first filter piece is used for filtering micron-level particulate matters in the air, and the second filter piece is used for adsorbing and filtering volatile organic matters in the air after passing through the first filter piece; the filter comprises a first filter element, a second filter element and a third filter element, wherein an absorbing sheet is attached to the outer edge of the periphery of the second filter element, a first adhesive is coated on the absorbing sheet, the outer edge of the periphery of the first filter element is hermetically connected with the outer edge of the periphery of the second filter element through the first adhesive, and the absorbing sheet is used for absorbing the first adhesive.

2. The filter structure of claim 1, wherein said first adhesive is applied to a peripheral outer edge of said absorbent sheet.

3. The filter structure of claim 1, wherein the absorbent sheet is a non-woven sheet, a soft sheet, or a silicone sheet.

4. The filter structure according to claim 1, wherein a peripheral outer side wall of said first filter member is sealingly joined to a peripheral inner side wall of said outer frame;

5. The filter structure according to claim 1, wherein a first filling layer is filled between a circumferential outer side wall of the first filter member and a circumferential inner side wall of the outer frame;

6. The filter structure according to claim 1, wherein a second filling layer is filled between a circumferential outer side wall of the second filter member and a circumferential inner side wall of the outer frame;

7. The filter structure according to claim 1, wherein a first filling layer is filled between a circumferential outer side wall of the first filter member and a circumferential inner side wall of the outer frame;

a second filling layer is filled between a circle of outer side wall of the second filter piece and a circle of inner side wall of the outer frame;

8. A filter construction according to any one of claims 1 to 7, further comprising a primary filter web mounted to the outer frame, the primary filter web being disposed on a side of the first filter element facing away from the second filter element.

9. A filter structure as claimed in any one of claims 1 to 7, wherein the outer frame is a paper frame comprising two sheets of paper in an L-shape, the two sheets being arranged in register and bonded together by adhesive means.

10. An air treatment device, characterized in that it comprises a filter structure according to any one of claims 1 to 9.