Multifunctional composite filter screen structure of purifier

Abstract

The utility model relates to the technical field of purifiers, in particular to a multifunctional composite filter screen structure of a purifier, which comprises a purifier body, the purifier body comprises an upper combination body and a lower combination body, a power and control unit is arranged in the upper combination body, and a bottom air inlet is arranged at the lower end of the lower combination body. The lower combination body is internally provided with a filter combination unit, the inner side of the filter combination unit can be provided with a composite filtering structure, the composite filtering structure comprises an auxiliary cylindrical filtering unit and an auxiliary conical filtering unit, and the main filtering unit, the auxiliary cylindrical filtering unit and the auxiliary conical filtering unit are arranged; and compared with a single composite filter screen, the purification efficiency and the service life of the purifier body are improved. Comparison tests show that when the purifier body is additionally provided with or not provided with the auxiliary HEPA small filter screen, the CADR purification efficiency of particulate matter of the purifier is improved by 3%, and the service life of the whole filter screen is prolonged by about 10%.

Description

TECHNICAL FIELD

[0001] The utility model relates to purifier technical field, especially purifier multifunctional composite filter screen structure. BACKGROUND

[0002] At present, air purifier commonly adopts the structure form of multilayer composite filter screen to remove pet hair, pollen, PM2.5 particles, oil fume, formaldehyde, VOC and other harmful solid and gaseous pollutants in air, wherein solid pollutants mainly pass through the mode in physical filtration, such as adopting primary efficiency nylon net and HEPA filter paper to filter the hair, pollen, PM2.5 and other solid pollutants in air, gaseous pollutants mainly utilize the porous structure and strong adsorption characteristics of activated carbon filter screen to adsorb and filter gaseous pollutants in air, so the area of filter screen and the weight of activated carbon in filter in air purifier directly affect the filtering performance and service life of purifier, at present, considering the cost performance, most small cylindrical purifiers adopt three-in-one filter screen structure, that is, making primary efficiency net, HEPA and activated carbon into one circular composite filter screen structure, so the unfolding area of filter screen is limited relatively, the service life of HEPA and activated carbon filter screen can not be matched, the filter needs to be replaced together and other defects, practicality is insufficient, and it is to be improved. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the defects of the prior art, the utility model provides a purifier multifunctional composite filter screen structure, which solves the technical problem of insufficient practicability of the prior device.

[0005] (II) technical scheme

[0006] To achieve the above object, the utility model discloses the following technical scheme:

[0007] A purifier multifunctional composite filter screen structure, comprising a purifier body, the purifier body includes upper combination body and lower combination body, the inside of upper combination body is equipped with power and control unit, the lower end of lower combination body is equipped with bottom air inlet, the inside of lower combination body is equipped with filter combination unit;

[0008] The inside of filter combination unit can be equipped with composite filter structure;

[0009] The composite filter structure includes auxiliary cylindrical filter unit and auxiliary conical filter unit, the auxiliary cylindrical filter unit and auxiliary conical filter unit can be embedded and clamped to the bottom air inlet, the auxiliary cylindrical filter unit and auxiliary conical filter unit can be located at the bottom air inlet, the outside of filter combination unit is equipped with air inlet grille, and the air inlet grille is 360 ° annular grille.

[0010] Preferably, the upper end and the lower end of the auxiliary cylindrical filter unit are respectively provided with an upper cover and sealing cotton, the upper end of the sealing cotton is provided with a lower cover, the lower cover is fixedly installed above the sealing cotton, the fourth H13 HEPA filter screen and the third 60-mesh primary efficiency nylon screen are fixedly installed between the sealing cotton and the upper cover, and the third 60-mesh primary efficiency nylon screen is located outside the fourth H13 HEPA filter screen.

[0011] Preferably, the conical circumferential surface of the auxiliary conical filter unit is respectively provided with the second 60-mesh primary efficiency nylon screen and the third H13 HEPA filter screen, the second 60-mesh primary efficiency nylon screen is arranged inside the third H13 HEPA filter screen, and the inside of the lower combined body is provided with a main filter screen unit, the main filter screen unit comprises EVA sealing cotton, a second H13 HEPA filter screen, a first primary efficiency nylon screen, an activated carbon screen and a filter screen end cover, and the EVA sealing cotton is located at the lower end of the main filter screen unit.

[0012] Preferably, the circumferential surface of the main filter screen unit is respectively provided with the second H13 HEPA filter screen, the first primary efficiency nylon screen and the activated carbon screen, the second H13 HEPA filter screen is arranged outside the activated carbon screen, the first primary efficiency nylon screen is arranged outside the second H13 HEPA filter screen, the inner wall of the main filter screen unit is symmetrically provided with a handle, the upper end of the main filter screen unit is provided with a filter screen end cover, the filter screen end cover is matched with the second H13 HEPA filter screen, the first primary efficiency nylon screen and the activated carbon screen, the sealing cotton, the lower cover, the fourth H13 HEPA filter screen, the third 60-mesh primary efficiency nylon screen and the filter screen end cover are a main filter unit, and the main filter unit is clamped inside the lower combined body.

[0013] Preferably, the auxiliary cylindrical filter unit and the auxiliary conical filter unit can be located inside the main filter unit, the inside of the upper combined body is respectively provided with a top air inlet and a centrifugal machine, the top air inlet is located below the centrifugal machine, the inside of the upper combined body is provided with an air duct, and the upper end of the upper combined body is provided with an air outlet grille.

[0014] (Three) beneficial effects

[0015] I. By arranging the main filter unit and the auxiliary cylindrical filter unit and the auxiliary conical filter unit, experimental tests show that, compared with a single composite filter screen, the purification efficiency and service life of the purifier body are increased, and through comparative tests, it is shown that, compared with a purifier body without auxiliary HEPA small filter screens, the CADR purification efficiency of the purifier is increased by 3%, and the service life of the overall filter screen is increased by about 10% (it is estimated that the area of the added HEPA filter screen is proportional to the dust holding capacity of the filter screen and the development area of the filter paper in the same environment, that is, the service life of the filter screen is proportional) ;

[0016] II. By setting the main filter unit as a HEPA mesh, the auxiliary cylindrical filter unit and the auxiliary conical filter unit as activated carbon mesh, two separate life cycles are replaced respectively, avoiding the waste of filter mesh caused by the unified replacement of the single composite filter mesh due to the inconsistent service life of the two filter meshes;

[0017] III. By setting the main filter unit as a multifunctional composite filter mesh and the auxiliary small filter mesh as a single HEPA or activated carbon filter mesh, the ability and life of the air purifier body to filter particulate matter or gaseous pollutants are enhanced, which can meet the diverse needs of different users for various filtering environments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, and to implement the content of the specification, the following will be described in detail with the preferred embodiments of the present application and in cooperation with the drawings.

[0019] Figure 1 It is a perspective view of the present application;

[0020] Figure 2 It is a bottom view of the present application;

[0021] Figure 3 It is a plane section view of the auxiliary cylindrical filter unit of the present application;

[0022] Figure 4 It is a plane section view of the auxiliary conical filter unit of the present application;

[0023] Figure 5 It is a plane view of the auxiliary conical filter unit of the present application;

[0024] Figure 6 It is a perspective view of the auxiliary conical filter unit of the present application;

[0025] Figure 7 It is a plane view of the main filter unit of the present application;

[0026] Figure 8 It is a plane view of the auxiliary cylindrical filter unit of the present application;

[0027] Figure 9 It is a perspective view of the auxiliary cylindrical filter unit of the present application;

[0028] Figure 10 It is an air purification test conversion table of the present application lacking a composite filter structure;

[0029] Figure 11 It is an air purification test conversion table of the present application lacking an auxiliary cylindrical filter unit filter core;

[0030] Figure 12 The utility model discloses a particle test table using sticky carbon and auxiliary conical filter unit;

[0031] Figure 13 The utility model discloses a particle test table using sticky carbon and no built-in filter core combination.

[0032] Legend: 11, the upper combined body, 12, the lower combined body, 13, the bottom air inlet, 14, auxiliary cylindrical filter unit, 15, auxiliary conical filter unit, 16, filter combination unit, 17, second H13 HEPA filter screen, 18, first primary nylon screen, 19, activated carbon screen, 21, filter screen end cover, 22, second 60 mesh primary nylon screen, 23, third H13 HEPA filter screen, 24, sealing cotton, 25, lower cover, 26, fourth H13 HEPA filter screen, 27, third 60 mesh primary nylon screen, 28, upper cover, 29, top air inlet, 31, centrifuge, 32, air duct, 33, air outlet grille. DETAILED DESCRIPTION

[0033] The utility model discloses a kind of multifunctional composite filter screen structures of purifier, effectively solve the technical problems of the practicality of existing device insufficient, by setting up main filter unit and auxiliary cylindrical filter unit and auxiliary conical filter unit, through experimental test, compared with single composite filter screen, increase the purification efficiency and service life of purifier body, through comparative test, the CADR purification efficiency of the particle of purifier is improved % with and without auxiliary HEPA small filter screen, the service life of overall filter screen is increased by about % (reference the area of increased HEPA filter screen estimates, in the same environment, the dust capacity of filter screen is proportional to the unfolding area of filter paper, i.e. proportional to the service life of filter screen), and by setting up main filter unit is set as HEPA screen, auxiliary cylindrical filter unit and auxiliary conical filter unit are set as activated carbon screen, two separate service life is replaced respectively, avoid the waste of filter screen caused by unified replacement due to the inconsistent service life of two filter screens of single composite filter screen, and by setting up main filter unit as multifunctional composite filter screen, auxiliary small filter screen is set as single HEPA or activated carbon filter screen, enhance the ability and service life of purifier body to filter particle or gaseous pollutant, can satisfy the diverse needs of different users to various filtering environments.

[0034] EMBODIMENT

[0035] As Figures 1-13 The technical scheme in the embodiment of the application effectively solves the technical problems of the practicality of existing device insufficient, and the general idea is as follows:

[0036] In view of the problems in the prior art, the utility model provides a multifunctional composite filter screen structure of purifier, including purifier body, purifier body includes upper combined body 11 and lower combined body 12, and the inside of upper combined body 11 is equipped with power and control unit, and the lower end of lower combined body 12 is equipped with bottom air inlet 13, and the inside of lower combined body 12 is equipped with filter combination unit 16;

[0037] The inside of filter combination unit 16 can be provided with a composite filter structure.

[0038] The composite filter structure includes an auxiliary cylindrical filter unit 14 and an auxiliary conical filter unit 15,

[0039] The auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 can be embedded and clamped at the bottom air inlet 13, and the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 can be located at the bottom air inlet 13. The outside of the filter combination unit 16 is provided with an air inlet grille, which is a 360° annular grille. The upper end and the lower end of the auxiliary cylindrical filter unit 14 are respectively provided with an upper cover 28 and a sealing cotton 24. The upper end of the sealing cotton 24 is provided with a lower cover 25, which is fixedly installed above the sealing cotton 24. A fourth H13 HEPA filter screen 26 and a third 60-mesh primary efficiency nylon screen 27 are fixedly installed between the sealing cotton 24 and the upper cover 28. The third 60-mesh primary efficiency nylon screen 27 is located outside the fourth H13 HEPA filter screen 26. The purifier body can be divided into an upper combined body 11 and a lower combined body 12. The upper combined body 11 is mainly the power and control unit of the purifier body, and the lower combined body 12 is mainly composed of the filter combination unit 16 and the composite filter structure. By opening the 360° annular grille, the maximum air inlet area of the filter in the filter combination unit 16 can be ensured. At the same time, the bottom air inlet 13 is opened in a circular truncated cone shape, which can provide a larger air inlet for the planar air inlet. At the same time, the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 are provided. Different auxiliary filter units 15 have different effects, which can provide different choices for users according to their needs and improve the applicability.

[0040] The conical circumferential surface of the auxiliary conical filter unit 15 is respectively provided with a second 60-mesh primary efficiency nylon screen 22 and a third H13 HEPA filter screen 23, the second 60-mesh primary efficiency nylon screen 22 is arranged inside the third H13 HEPA filter screen 23, the lower combined body 12 is internally provided with a main filter screen unit, the main filter screen unit comprises EVA sealing cotton, a second H13 HEPA filter screen 17, a first primary efficiency nylon screen 18, an activated carbon screen 19 and a filter screen end cover 21, the EVA sealing cotton is located at the lower end of the main filter screen unit, the mounting distance between the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 and the inner wall of the filter combined unit 16 is greater than 10mm-20mm, which can avoid affecting the air resistance of the filter combined unit 16, the optimal height of the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 is about 30%-40% of the overall height of the filter combined unit 16, experimental tests show that the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 can increase the purification efficiency of the purifier body by about 3%, and can increase the service life of the purifier body by about 10% (estimated according to the increased HEPA filter expansion area), which shows that the auxiliary filter screen can increase the filtration efficiency of the purifier body and the service life of the filter combined unit 16, through comparative tests under the same conditions, whether the filter core of the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 is increased, the filtration efficiency of the purifier can be improved.

[0041] The circumferential surface of the main filter unit is respectively provided with a second H13 HEPA filter 17, a first primary effect nylon mesh 18 and an activated carbon mesh 19. The main filter unit is cylindrical and is located outside the auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15. The second H13 HEPA filter 17 is arranged outside the activated carbon mesh 19, and the first primary effect nylon mesh 18 is arranged outside the second H13 HEPA filter 17. The inner wall of the main filter unit is symmetrically provided with handles, and the upper end of the main filter unit is provided with a filter end cover 21, which is adapted to the second H13 HEPA filter 17, the first primary effect nylon mesh 18 and the activated carbon mesh 19. The sealing sponge 24, the lower cover 25, the fourth H13 The HEPA filter 26, the third 60-mesh primary nylon mesh 27 and the filter end cover 21 are the main filter unit. The main filter unit is located inside the lower combined body 12 and is snapped in. The auxiliary cylindrical filter unit 14 and the auxiliary conical filter unit 15 can be located inside the main filter unit. The upper combined body 11 is respectively provided with a top air inlet 29 and a centrifuge 31. The top air inlet 29 is located below the centrifuge 31. The upper combined body 11 is provided with an air duct 32. The upper end of the upper combined body 11 is provided with an air outlet grille 33. By arranging a cylindrical main filter unit under the purifier body (the filter element of the main filter unit is composed of the fourth H13 HEPA filter 26 and the third 60-mesh primary nylon mesh 27), and arranging an auxiliary conical filter unit 15 at the bottom air inlet 13, not only the air inlet area can be increased, but also the filtering performance of the wind can be increased. After experimental comparative tests, the auxiliary conical filter unit 15 is provided, and the purification efficiency CADR of the particulate matter of the purifier body is increased from 300.5m 3 / h increased to 308.5m 3 / h (when tested without the built-in auxiliary conical filter unit 15, the bottom air inlet 13 is closed to prevent air leakage from causing performance degradation), the purification efficiency increases by about 3%.

[0042] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A multifunctional composite filter screen structure of a purifier, comprising a purifier body, the purifier body comprising an upper combined body (11) and a lower combined body (12), the lower combined body (12) being provided with a bottom air inlet (13) at a lower end thereof, characterized in that, The lower combined body (12) is internally provided with a filter combination unit (16); The inside of the filter combination unit (16) can be provided with a composite filter structure; The composite filter structure comprises an auxiliary cylindrical filter unit (14) and an auxiliary conical filter unit (15), both of which can be embedded and clamped at the bottom air inlet (13), both of which can be located at the bottom air inlet (13), the outside of the filter combination unit (16) is provided with an air inlet grille, which is a 360° annular grille; Wherein, the upper end and the lower end of the auxiliary cylindrical filter unit (14) are respectively provided with an upper cover (28) and a sealing cotton (24), and the upper end of the sealing cotton (24) is provided with a lower cover (25); Wherein, the lower cover (25) is fixedly installed above the sealing cotton (24), and the fourth H13 HEPA filter screen (26) and the third 60-mesh primary efficiency nylon screen (27) are fixedly installed between the sealing cotton (24) and the upper cover (28), and the third 60-mesh primary efficiency nylon screen (27) is located outside the fourth H13 HEPA filter screen (26).

2. The multifunctional composite filter screen structure of claim 1, wherein, The conical circumferential surface of the auxiliary conical filter unit (15) is respectively provided with a second 60-mesh primary efficiency nylon screen (22) and a third H13 HEPA filter screen (23); Wherein, the second 60-mesh primary efficiency nylon screen (22) is arranged inside the third H13 HEPA filter screen (23).

3. The multi-functional composite filter screen structure of claim 2, wherein, The lower combined body (12) is internally provided with a main filter screen unit, which comprises EVA sealing cotton, a second H13 HEPA filter screen (17), a first primary efficiency nylon screen (18), an activated carbon screen (19) and a filter screen end cover (21), and the EVA sealing cotton is located at the lower end of the main filter screen unit.

4. The multi-functional composite filter screen structure of claim 3, wherein, The circumferential surface of the main filter screen unit is respectively provided with a second H13 HEPA filter screen (17), a first primary efficiency nylon screen (18) and an activated carbon screen (19), the second H13 HEPA filter screen (17) is arranged outside the activated carbon screen (19), the first primary efficiency nylon screen (18) is arranged outside the second H13 HEPA filter screen (17), and the inner wall of the main filter screen unit is symmetrically provided with a handle, and the upper end of the main filter screen unit is provided with a filter screen end cover (21).

5. The multi-functional composite filter screen structure of claim 4, wherein, The filter screen end cover (21) is matched with the second H13 HEPA filter screen (17), the first primary efficiency nylon screen (18) and the activated carbon screen (19).

6. The multi-functional composite filter screen structure of claim 5, wherein, The sealing cotton (24), the lower cover (25), the fourth H13 HEPA filter screen (26), the third 60-mesh primary efficiency nylon screen (27) and the filter screen end cover (21) are the main filter unit, and the main filter unit is clamped inside the lower combined body (12).

7. The multi-functional composite filter screen structure of claim 6, wherein, The auxiliary cylindrical filter unit (14) and the auxiliary conical filter unit (15) can be located inside the main filter unit, and the upper combined body (11) is internally provided with a top air inlet (29) and a centrifugal machine (31).

8. The multi-functional composite filter screen structure of claim 7, wherein, The top air inlet (29) is located below the centrifugal machine (31), and the upper combined body (11) is internally provided with an air duct (32), and the upper end of the upper combined body (11) is provided with an air outlet grille (33).

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