CN219355578U - Filter element and air purifier - Google Patents

Abstract

The utility model discloses a filter element, which comprises a photocatalyst purifying core at the upper part and a filter element at the lower part; the filter element comprises an annular upper substrate with a central opening, a circular lower substrate, and a cylindrical primary filter layer, a secondary filter layer and a tertiary filter layer which are arranged between the upper substrate and the lower substrate from outside to inside; the photocatalyst purifying core comprises a shell with an opening at the top, a cover plate in threaded connection with the top of the shell, and a screw rod arranged in the center of the shell; the lower end of the screw is connected with a screw seat in the center of the bottom of the shell, and a plurality of photocatalyst filter elements are connected on the screw at equal intervals; the center of the bottom of the shell is provided with an air guide hole corresponding to the center opening of the base plate on the filter element; the cover plate back evenly sets up a plurality of ultraviolet LED lamp pearls, and this filter core is through multistage filtration, active carbon absorption and photocatalyst decomposition technique, and purifying effect is outstanding, upper and lower structure separation is simple, area is little.

Description

Filter element and air purifier

Technical Field

The utility model relates to the field of air purification equipment, in particular to a filter element and an air purifier.

Background

The air purifier mainly utilizes the fan to inhale air from the air intake, and clean air is discharged from the air outlet after the filter core filters, accomplishes the purification to the air.

The shape of the general filter element is rectangular or cylindrical, the rectangular filter element (such as a novel antibacterial air conditioner filter element disclosed in China patent CN 216320561U) is generally arranged in sequence according to the size of the filter aperture, and the disadvantage is that the occupied area is large, and the air inlet hole can only be arranged on the front side (single-side air inlet) of the shell; the cylindrical filter element (such as the filter element of an air purifier disclosed in Chinese patent CN 207654870U) has small occupied area, the air inlet hole can be formed in 360 degrees (the air inlet surface is large), however, the cylindrical filter element is generally a filter cloth filter element, a filter paper filter element or an active carbon filter element due to the limited structure, the filter element of a photocatalyst is less, the structure is complex, and the disassembly and the replacement are complex; chinese patent CN218495283U discloses a novel photocatalyst filter core air purifier, the filter core of this purifier is cylindric to used photocatalyst technique, however ultraviolet tube is vertical setting in the casing (on the wind channel) in this patent, can produce the windage.

Disclosure of Invention

The utility model aims to provide a filter element and an air purifier.

The innovation point of the utility model is that: through multistage filtration, active carbon adsorption and photocatalyst decomposition technology, the purifying effect is excellent, the upper and lower structure separation is simple, and the occupied area is small.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a filter element, which comprises a photocatalyst purifying core at the upper part and a filter element at the lower part; the filter element comprises an annular upper substrate with a central opening, a circular lower substrate, and a cylindrical primary filter layer, a secondary filter layer and a tertiary filter layer which are arranged between the upper substrate and the lower substrate from outside to inside; the photocatalyst purifying core comprises a shell with an opening at the top, a cover plate in threaded connection with the top of the shell, and a screw rod arranged in the center of the shell; the lower end of the screw is connected with a screw seat in the center of the bottom of the shell, and a plurality of photocatalyst filter elements are connected on the screw at equal intervals; the center of the bottom of the shell is provided with an air guide hole corresponding to the center opening of the base plate on the filter element; the back of the cover plate is uniformly provided with a plurality of ultraviolet LED lamp beads; the back of the bottom of the shell is provided with a connecting ring, and the connecting ring is in threaded connection with a connecting groove at the top of the upper substrate.

Further, the center of the cover plate is provided with a vent, the vent is further provided with an air outlet grille, the center of the air outlet grille is provided with a limiting seat, and the upper end of the screw rod extends into the limiting seat.

Further, the photocatalyst filter element is in threaded connection with the screw rod, and the top nut is fixed up and down.

Further, a positioning column is arranged in the center of the back surface of the bottom of the lower substrate.

Further, the primary filter layer is a non-woven fabric layer.

Further, the secondary filter layer is a polypropylene melt-blown layer.

Further, the three-stage filter layer is an activated carbon adsorption layer.

The air purifier comprises the filter element.

The beneficial effects of the utility model are as follows:

first: the filter element is a cylindrical filter element with an up-down structure, and has small occupied area and large air inlet surface; air firstly enters the filter element, and after being treated by the non-woven fabric layer, the polypropylene melt-blown cloth layer and the activated carbon adsorption layer, the air enters the photocatalyst purifying core, so that the treatment effect is good.

Second,: the photocatalyst purifies the core and sets up the casing, can avoid the light leak, and ultraviolet ray LED lamp pearl sets up simultaneously and can not produce the windage at the apron back, apron and casing threaded connection, and it is more convenient to dismantle the clearance.

Third,: the filter element is in threaded connection with the photocatalyst purifying core, and is convenient to replace.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of the assembled structure of the present utility model and a purifier.

In the figure: the photocatalyst purifying core is 10, the shell is 11, the connecting ring is 11.1, the cover plate is 12, the screw is 13, the screw seat is 14, the photocatalyst filter core is 15, the air guide hole is 16, the ultraviolet LED lamp bead is 17, the air outlet grille is 18, the limit seat is 19, the filter core is 20, the upper substrate is 21, the connecting groove is 21.1, the lower substrate is 22, the positioning column is 22.1, the primary filter layer is 23, the secondary filter layer is 24, the tertiary filter layer is 25, the air purifier shell is 30, and the air inlet hole is 31.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

A filter element, comprising an upper photocatalyst purifying core 10 and a lower filter element 20; the filter element 20 comprises an annular upper base plate 21 with a central hole, a round lower base plate 22, and a cylindrical primary filter layer 23, a secondary filter layer 24 and a tertiary filter layer 25 which are arranged between the upper base plate 21 and the lower base plate 22 from outside to inside; the photocatalyst purifying core 10 comprises a shell 11 with an opening at the top, a cover plate 12 in threaded connection with the top of the shell 11 and a screw rod 13 arranged in the center of the shell 11; the lower end of the screw 13 is connected with a screw seat 14 in the center of the bottom of the shell 11, and a plurality of photocatalyst filter elements 15 are connected on the screw 13 at equal intervals; the center of the bottom of the shell 11 is provided with an air guide hole 16 corresponding to the center opening of the base plate 21 on the filter element 20; a plurality of ultraviolet LED lamp beads 17 are uniformly arranged on the back surface of the cover plate 12; the back of the bottom of the shell 11 is provided with a connecting ring 11.1, and the connecting ring 11.1 is in threaded connection with a connecting groove 21.1 at the top of the upper substrate 21.

Further, the ultraviolet LED lamp beads 17 are arranged on the back surface of the cover plate 12, wind resistance is not generated, and maintenance is convenient.

Further, the photocatalyst purifying core 10 is in threaded connection with the filter core 20 through the connecting ring 11.1 and the connecting groove 21.1, so that the photocatalyst purifying core is convenient to split and the filter core 20 is convenient to replace.

Further, an air outlet grille 18 is arranged at the center of the cover plate 12, a limit seat 19 is arranged at the center of the air outlet grille 18, and the upper end of the screw 13 extends into the limit seat 19; when the cover plate 12 is installed, the limiting seat 19 is aligned to the top end of the screw 13, and then the outer edge of the cover plate 12 is in threaded connection with the shell 11.

Further, the photocatalyst filter element 15 is in threaded connection with the screw 13, and is fixed by a top nut (not shown) arranged up and down, and the number of the photocatalyst filter elements 15 can be determined according to the height of the air purifier housing 30.

Further, a positioning column 22.1 is disposed at the center of the bottom back of the lower substrate 22.

Further, the first-stage filter layer 23 is a non-woven fabric layer, and the non-woven fabric has the blocking and filtering effects on pollen, germs and dust.

Further, the secondary filter layer 24 is a polypropylene melt-blown cloth layer, and the polypropylene melt-blown cloth layer can catch dust, various viruses in the air and filter haze PM2.5 can reach 99%.

Further, the third filter layer 25 is an activated carbon adsorption layer, and the activated carbon adsorption layer can adsorb formaldehyde and the like.

The air purifier comprises the filter element.

When in installation: (refer to FIG. 2)

The positioning column 22.1 at the bottom of the filter element is aligned with the groove at the bottom of the air purifier shell 30, the outer edge of the upper substrate 21 of the filter element 20 can be in threaded connection with the inner wall of the air purifier shell 30, the lower part of the air purifier shell 30 is provided with an air inlet hole 31, and the top of the air purifier shell 30 is additionally provided with a centrifugal fan which is not shown in the drawing.

During filtration, air enters from the air inlet hole 31 and is filtered by the filter element 20, then enters the photocatalyst purifying core 10 for purification, and is discharged from the air outlet grating 18 after the filtration is completed. The filter element has excellent purifying effect, simple separation of the upper structure and the lower structure and small occupied area through multistage filtration, activated carbon adsorption and photocatalyst decomposition technology.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (8)

1. A filter cartridge, characterized in that: comprises an upper photocatalyst purifying core (10) and a lower filter core (20); the filter element (20) comprises an annular upper base plate (21) with a central hole, a round lower base plate (22), and a cylindrical primary filter layer (23), a secondary filter layer (24) and a tertiary filter layer (25) which are arranged between the upper base plate (21) and the lower base plate (22) from outside to inside; the photocatalyst purifying core (10) comprises a shell (11) with an opening at the top, a cover plate (12) in threaded connection with the top of the shell (11) and a screw rod (13) arranged at the center in the shell (11); the lower end of the screw rod (13) is connected with a screw seat (14) at the center of the bottom of the shell (11), and a plurality of photocatalyst filter elements (15) are connected on the screw rod (13) at equal intervals; the center of the bottom of the shell (11) is also provided with an air guide hole (16) at the position corresponding to the center opening of the upper base plate (21) of the filter element (20); a plurality of ultraviolet LED lamp beads (17) are uniformly arranged on the back surface of the cover plate (12); the back of the bottom of the shell (11) is provided with a connecting ring (11.1), and the connecting ring (11.1) is in threaded connection with a connecting groove (21.1) at the top of the upper substrate (21).

2. A filter cartridge as claimed in claim 1, wherein: the air outlet grille (18) is arranged at the center of the cover plate (12), the limit seat (19) is arranged at the center of the air outlet grille (18), and the upper end of the screw rod (13) extends into the limit seat (19).

3. A filter cartridge as claimed in claim 1, wherein: the photocatalyst filter element (15) is in threaded connection with the screw rod (13), and is fixed by a butt nut.

4. A filter cartridge as claimed in claim 1, wherein: and a positioning column (22.1) is arranged in the center of the back of the bottom of the lower substrate (22).

5. A filter cartridge as claimed in claim 1, wherein: the primary filter layer (23) is a non-woven fabric layer.

6. A filter cartridge as claimed in claim 1, wherein: the secondary filter layer (24) is a polypropylene melt-blown layer.

7. A filter cartridge as claimed in claim 1, wherein: the three-stage filter layer (25) is an activated carbon adsorption layer.

8. Air purifier, its characterized in that: comprising a filter cartridge according to any one of claims 1 to 7.