Air purifier

Abstract

The utility model provides an air purifier which comprises a fixing piece and a filter screen assembly fixed to the fixing piece, the filter screen assembly is of a multi-layer cylindrical structure, and the filter screen assembly comprises a first supporting net, a second supporting net, an HEPA filter screen and a primary effect net which are sequentially arranged from inside to outside; an airflow channel is formed in the inner side of the first supporting net, the fixing piece, the first supporting net and the second supporting net jointly define a containing cavity, and a filling matrix used for adsorbing target pollutants is arranged in the containing cavity. According to the air purifier, the filter screen assembly is arranged to be of a multi-layer cylindrical structure, and the adsorption materials are fixed in a filling mode, so that the adsorption materials are distributed more evenly in the filter screen assembly, and the purification effect of the air purifier is improved while the structural stability of the air purifier is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification, and in particular relates to an air purifier. Background Art

[0002] Air purifiers have the function of removing target pollutants such as particulate matter, gaseous pollutants, microorganisms, odors and allergens in the air. In the related art, air purifiers are usually provided with structures such as a primary net and an adsorption material layer, wherein the adsorption material layer is usually made by pasting adsorption materials on a plastic net. However, air purifiers made in this way are prone to uneven distribution of adsorption materials, limited air purification capacity, and low structural stability of the device, making it difficult to meet user needs. Utility Model Content

[0003] The technical purpose of the utility model is to provide an air purifier, aiming to solve the problems of low structural stability and low purification capacity of the filter assembly of the air purifier in the related art.

[0004] To solve the above technical problems, the utility model is implemented as follows: an air purifier comprises: a fixing member, a filter assembly fixed to the fixing member, the filter assembly is a multi-layer cylindrical structure, and the filter assembly comprises a first support net, a second support net, a HEPA filter net, and a primary filter net arranged in sequence from the inside to the outside; an air flow channel is formed on the inner side of the first support net, and the fixing member, the first support net, and the second support net are jointly enclosed to form a receiving cavity, and a filling matrix for adsorbing target pollutants is arranged in the receiving cavity.

[0005] Furthermore, the fixing member includes end covers respectively fixed to both ends of the filter assembly, and the end covers are provided with a first limiting edge and a second limiting edge spaced apart from each other, the first limiting edge is fixed to the inner side of the first supporting net, and the second limiting edge is fixed to the outer side of the primary effect net.

[0006] Furthermore, at least one of the end covers is provided with a clearance opening connecting the air flow channel and the outside.

[0007] Furthermore, a sealing glue body is connected between the first limiting edge and the first supporting net, and / or a sealing glue body is connected between the second limiting edge and the primary effect net.

[0008] Furthermore, the filling matrix is ​​one of activated alumina, potassium permanganate balls, and nano mineral crystals.

[0009] Furthermore, the first supporting net and the second supporting net are both painted nets.

[0010] Furthermore, the HEPA filter includes a plurality of filter units, and the plurality of filter units are distributed around the outside of the second supporting net, and adjacent filter units are connected to form a "V"-shaped structure or a "U"-shaped structure.

[0011] Furthermore, the primary net is a nylon net.

[0012] Furthermore, the filter assembly is in the shape of a cylinder, a conical cylinder, or a drum-shaped cylinder.

[0013] Compared with the prior art, the air purifier in the utility model has the following beneficial effects: the first support net and the second support net have a certain support capacity in themselves. When the two are fixed on the fixing member respectively, they can provide strong support for the common air purifier, thereby ensuring the structural stability of the air purifier. The first support net, the second support net and the fixing member enclose a receiving cavity, which can be used to receive the filling matrix, that is, the adsorbent material (filling matrix) used to adsorb pollutants is placed in the receiving cavity by filling. Since it is bulk filling, the position of the filling matrix is ​​not fixed. During operation, the filling matrix is ​​in a suspended state and evenly distributed. The air can fully contact the filling matrix, thereby maximizing the purification performance of the air purifier. In addition, the setting of the HEPA filter can effectively intercept inhalable particles such as floating dust, pollen, and secondhand smoke, and the primary effect net can effectively intercept large suspended particles such as hair and dust. It can be seen that the present application can perform multi-layer interception and filtration of pollutants in the air by setting a filter assembly with a layered cylindrical structure, which can greatly improve the effect of air purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the air purifier in the embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of the air purifier in the radial direction in the embodiment of the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the filter assembly along the axial direction in an embodiment of the utility model.

[0017] In the accompanying drawings, each figure mark represents: 1. fixing member; 11. first limiting edge; 12. second limiting edge; 13. clearance port; 2. filter assembly; 21. first supporting net; 211. air flow channel; 22. second supporting net; 23. HEPA filter; 24. primary filter; 25. filling matrix. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] Example:

[0022] like Figure 1-3 As shown, in this embodiment, the air purifier includes: a fixing member 1 and a filter assembly 2 fixed to the fixing member 1, the filter assembly 2 is a multi-layer cylindrical structure, and the filter assembly 2 includes a first support net 21, a second support net 22, a HEPA filter net 23, and a primary filter net 24 arranged from the inside to the outside; an air flow channel 211 is formed on the inner side of the first support net 21, and the fixing member 1, the first support net 21, and the second support net 22 are jointly enclosed to form a receiving cavity, and a filling matrix for adsorbing target pollutants is provided in the receiving cavity.

[0023] Specifically, the first support net 21 and the second support net 22 themselves have a certain support capacity. When the two are fixed on the fixing member 1 respectively, they can provide strong support for the common air purifier, ensuring the structural stability of the air purifier. The first support net 21, the second support net 22 and the fixing member 1 enclose a receiving cavity, which can be used to receive the filling matrix, that is, the adsorbent material (filling matrix) used to adsorb pollutants is placed in the receiving cavity by filling. Because it is bulk filling, the position of the filling matrix is ​​not fixed. During operation, the filling matrix is ​​in a suspended state and evenly distributed. The air can fully contact the filling matrix, so that the purification performance of the air purifier can be maximized. In addition, the setting of the HEPA filter 23 can effectively intercept inhalable particles such as floating dust, pollen, and secondhand smoke, and the primary effect net 24 can effectively intercept large suspended particles such as hair and dust. In this embodiment, the selection of adsorbent materials is wide. In actual application, adsorbent materials with corresponding functions can be selected according to the purification requirements to fill the receiving cavity so that the product can achieve the required special purification function. It can be seen that this embodiment can perform multi-layer interception and filtration of pollutants in the air by providing the filter assembly 2 with a layered cylindrical structure, thereby greatly improving the air purification effect.

[0024] In this embodiment, the fixing member 1 includes end caps respectively fixed to both ends of the filter assembly 2, and the end caps are provided with a first limiting edge 11 and a second limiting edge 12 spaced apart from each other, the first limiting edge 11 is fixed to the inner side of the first supporting net 21, and the second limiting edge 12 is fixed to the outer side of the primary effect net 24. Specifically, the distance between the first limiting edge 11 and the second limiting edge 12 is equal to the thickness of the filter assembly 2 (that is, the distance between the inner side wall of the first supporting net 21 and the outer side wall of the primary effect net 24), so that the first supporting net 21, the second supporting net 22, the HEPA filter 23 and the primary effect net 24 can be tightly fixed layer by layer through the cooperation between the first limiting edge 11 and the second limiting edge 12, so that the structural stability of the air purifier is fully guaranteed.

[0025] Furthermore, in the present embodiment, at least one of the end covers is provided with a clearance port 13 connecting the airflow channel 211 and the outside world. The clearance port 13 can be used for the purified air to flow out. Preferably, the clearance port 13 can be provided on only one of the end covers. The position and shape of the clearance port 13 are adapted to the airflow channel 211, and the other end cover seals the end of the airflow channel 211 away from the clearance port 13, so that the air can only pass through each layer of the filter screen to achieve a purification effect. Of course, in some other embodiments, both end covers can also be provided with a clearance port 13, which is not limited here. In the present embodiment, a sealing colloid is also connected between the first limiting edge 11 and the first supporting net 21. A sealing colloid is also connected between the second limiting edge 12 and the primary effect net 24. The sealing glue body can be formed by curing the molten glue or AB glue, that is, the first support net 21 can also be bonded and fixed to the first limiting edge 11 by the molten glue or AB glue, and / or the primary effect net 24 can also be bonded and fixed to the second limiting edge 12 by the molten glue or AB glue, further improving the connection stability between the filter assembly 2 and the fixing member 1. It can be understood that in some more specific embodiments, the HEPA filter net 23 can also be fixed to the second support net 22, the primary effect net 24, the fixing member 1, etc. by glue such as molten glue or AB glue, so that the various connected components are firmly bonded.

[0026] In this embodiment, a fan can be provided outside the air purifier, and the air to be purified can be blown to the primary net 24 by the fan, thereby realizing the gradual purification of the air. Compared with the traditional method of pasting adsorbent materials, this embodiment uses a filling method to stabilize the adsorbent material, so that the adsorbent material is more evenly distributed and filled, which can greatly increase the contact area between the adsorbent material and the air; the filling material itself has a certain weight, which can reduce wind resistance, reduce the requirements for the fan, and improve the purification performance.

[0027] In some embodiments, the receiving cavity can be filled with an adsorbent material with corresponding functions according to the purification requirements so that the product can achieve the required special purification function. Exemplarily, the filling matrix can be one or more adsorbent materials such as activated alumina, potassium permanganate balls, and nano-mineral crystals. Among them, activated alumina can effectively remove gaseous pollutants such as odor, formaldehyde, and sulfur dioxide in the air; and compared with traditional activated carbon adsorption materials, the mass of activated alumina is larger under the same volume, which is conducive to reducing wind resistance and reducing the requirements for the fan, thereby improving the purification effect. Potassium permanganate balls can effectively remove VOC gaseous pollutants such as formaldehyde and benzene in the air; potassium permanganate has strong oxidizing properties. Under neutral conditions, it can react chemically with indoor gaseous formaldehyde to generate carbon dioxide, water, and manganese dioxide. At the same time, manganese dioxide also has a certain catalytic and degradation effect on formaldehyde. Manganese dioxide with different crystal structures has different catalytic effects on formaldehyde. It can be seen that the oxidant containing potassium permanganate has the ability to efficiently remove formaldehyde. Nano-mineral crystals can effectively remove gaseous pollutants such as formaldehyde, ammonia, benzene, toluene, and xylene from the air; the pore size inside the nano-mineral crystals can be 0.3~0.9 nm, and the pore surface is polar, which has a strong adsorption effect on polar gas compounds of nano-molecular size, thereby quickly adsorbing harmful gases.

[0028] In this embodiment, the first support net 21 and the second support net 22 can both be paint nets. The paint net can provide strong support strength for the filter assembly 2, fully ensuring that the structure of the cylindrical filter of the air purifier is stable and does not deform during normal operation. At the same time, the first support net 21 can form a physical isolation between the filling matrix and the air flow channel 211, and the second support net 22 can form a physical isolation between the filling matrix and the HEPA filter 23, further ensuring the structural stability of the filter assembly 2.

[0029] In this embodiment, the HEPA filter 23 can be interwoven with very fine organic fibers, has a strong ability to capture particles, a small pore size, a large adsorption capacity, a high purification efficiency, and has water absorption, and can efficiently intercept inhalable particles such as floating dust, pollen, and secondhand smoke in the air. In a specific embodiment, the HEPA filter 23 includes a plurality of filter units, and the plurality of filter units are distributed around the outside of the second support net 22, and the adjacent filter units are connected to form a "V"-shaped structure, or the adjacent filter units are connected to form a "U"-shaped structure, so that a folded, surrounding HEPA filter layer can be formed, which greatly increases the contact area between the air and the filter unit, thereby improving the purification efficiency of the air purifier. It can be understood that in some embodiments, different materials or processing techniques can also be used to make the HEPA filter 23, so that the functions of purifying microorganisms such as antibacterial, sterilization, and antiviral can be achieved at the HEPA filter 23.

[0030] In this embodiment, the primary net 24 may be a nylon net, which can efficiently intercept large suspended particles such as hair and dust in the air and perform preliminary purification of the air.

[0031] In this embodiment, the shape of the filter assembly 2 can be one of a cylinder, a conical cylinder, and a drum-shaped cylinder. Preferably, the filter assembly 2 and the entire air purifier as a whole can be cylindrical, with beautiful appearance, good purification effect, and low manufacturing and processing costs. It is understandable that in some other embodiments, the shape of the filter assembly 2 and the entire air purifier can also be set to a cylindrical structure with a polygonal cross-section, which is not limited here.

[0032] Exemplarily, during assembly and manufacturing, the following sequence can be followed: first, fix the primary filter 24, the HEPA filter 23 and the second support net 22 to one of the end covers, then install the first support net 21, and then fill the receiving cavity formed between the first support net 21 and the second support net 22 with adsorption material, and finally install and fix the remaining end cover to obtain the desired air purifier.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air purifier, characterized in that: It includes a fixing part and a filter assembly fixed to the fixing part, the filter assembly is a multi-layer cylindrical structure, and the filter assembly includes a first support net, a second support net, a HEPA filter net, and a primary filter net arranged in sequence from the inside to the outside; an air flow channel is formed on the inner side of the first support net, and the fixing part, the first support net, and the second support net are jointly enclosed to form a receiving cavity, and a filling matrix for adsorbing target pollutants is arranged in the receiving cavity.

2. The air purifier according to claim 1, characterized in that: The fixing member includes end covers respectively fixed to both ends of the filter assembly, and the end covers are provided with a first limiting edge and a second limiting edge spaced apart from each other, the first limiting edge is fixed to the inner side of the first supporting net, and the second limiting edge is fixed to the outer side of the primary effect net.

3. The air purifier according to claim 2, characterized in that: At least one of the end covers is provided with a clearance opening connecting the air flow channel and the outside.

4. The air purifier according to claim 2, characterized in that: A sealing glue body is further connected between the first limiting edge and the first supporting net, and / or a sealing glue body is further connected between the second limiting edge and the primary effect net.

5. The air purifier according to claim 1, characterized in that: The filling matrix is ​​one of activated alumina, potassium permanganate balls and nano mineral crystals.

6. The air purifier according to claim 1, characterized in that: The first supporting net and the second supporting net are both painted nets.

7. The air purifier according to claim 1, characterized in that: The HEPA filter includes a plurality of filter units, and the plurality of filter units are distributed around the outside of the second support net, and adjacent filter units are connected to form a "V"-shaped structure or a "U"-shaped structure.

8. The air purifier according to claim 1, characterized in that: The primary net is a nylon net.

9. The air purifier according to claim 1, characterized in that: The filter assembly is in the shape of a cylinder, a conical cylinder, or a drum cylinder.

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