An air purifier

Abstract

The utility model provides a kind of air purifier, it is related to air conditioning technical field.A kind of air purifier, comprising: shell, the shell includes first air inlet part, second air inlet part and air outlet part;Wherein the first air inlet part and the second air inlet part are respectively arranged in the upper and lower sides of the air outlet part.By the first air inlet part and the second air inlet part are respectively arranged in the upper and lower sides of the air outlet part, the airflow structure of upper and lower bilateral air intake, middle concentrated air outlet is realized.The layout significantly enlarges the air inlet area, improves the air flow in unit time;At the same time, airflow is symmetrically entered from the upper and lower two directions, uniformly discharged after converging in air outlet part, effectively avoids the airflow deflection or dead angle problem caused by traditional unilateral air intake, improves the uniformity and overall efficiency of air purification.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and specifically relates to an air purifier. Background Technology

[0002] With the improvement of people's living standards and the increasing emphasis on indoor air quality, air purifiers have become an indispensable home appliance in modern homes and offices. Their main function is to draw in indoor air through a built-in fan system, remove pollutants such as particulate matter, harmful gases, bacteria, and viruses from the air via filters or multi-stage filtration devices, and then release the purified air back into the room, thereby improving air quality and protecting human health.

[0003] Most air purifiers on the market today use a side-intake, top- or front-exhaust design. Air typically enters from one side or a specific area of ​​the device, is filtered, and then exits from one side or the center. This traditional airflow layout has several limitations: First, the concentrated distribution of air inlets results in a limited intake area, leading to a smaller volume of air processed per unit time and affecting purification efficiency. Second, the intake airflow is easily affected by surrounding obstacles, creating dead zones or short-circuiting, causing uneven purification. Furthermore, polluted air near the ground is difficult to effectively draw in due to the higher position of the air inlet, reducing the responsiveness to low-level pollution sources. Additionally, some products use only a single filter or a single airflow path, resulting in a limited filtration area, which is insufficient to meet the needs of rapid purification in large spaces.

[0004] Therefore, existing air purifiers still have significant shortcomings in terms of air intake efficiency, filtration performance, and operational safety. There is an urgent need for a new type of air purifier that is structurally sound, allows for sufficient air intake, is highly efficient in purification, and is safe and reliable, in order to improve the overall purification effect and user experience. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an air purifier.

[0006] The purpose of this utility model can be achieved through the following technical solution: an air purifier, comprising: a housing, the housing including a first air inlet, a second air inlet and an air outlet; wherein the first air inlet and the second air inlet are respectively disposed on the upper and lower sides of the air outlet.

[0007] As a further improvement of this utility model, the first air inlet is provided with a first air inlet and a second air inlet, the first air inlet is provided on the bottom surface of the first air inlet, and the second air inlet is provided on the side surface of the first air inlet.

[0008] As a further improvement of this utility model, the second air inlet is provided as a plurality of them, and the plurality of second air inlets are distributed circumferentially at intervals along the side of the first air inlet, and the interval between any two adjacent second air inlets is the same.

[0009] As a further improvement of this utility model, it also includes a first filter element, which is disposed between the first air inlet and the air outlet. Air enters the inner side of the first filter element from the bottom through the first air inlet, passes through the first filter element from the inside to the outside, and is discharged through the air outlet.

[0010] As a further improvement of this utility model, the first filter element has a through hole along the setting direction, and a filter element cover is provided on the upper part of the first filter element, the filter element cover closing the through hole.

[0011] As a further improvement of this utility model, the cross-sectional area of ​​the first filter element gradually increases from top to bottom.

[0012] As a further improvement of this utility model, it also includes a second filter element, which is disposed between the second air inlet and the air outlet.

[0013] As a further improvement of this utility model, it also includes a connected impeller and a motor. A bracket is provided inside the air outlet, the motor is mounted on the bracket, and the motor and the impeller are respectively located on both sides of the bracket.

[0014] As a further improvement of this utility model, the wind turbine is provided with a double-layer air outlet structure on its side. Each layer of the air outlet structure is composed of multiple blades evenly distributed along the circumference, and the blades of the upper and lower layers are staggered along the circumference.

[0015] As a further improvement of this utility model, a protective net is provided between the air outlet and the impeller, and the protective net is provided with ventilation holes, and the protective net surrounds the impeller circumferentially.

[0016] Based on the above technical solution, this utility model can produce at least the following technical effects:

[0017] 1. By placing the first and second air inlets on the upper and lower sides of the air outlet respectively, an airflow structure with air intake from both sides and concentrated air outlet in the middle is achieved. This layout significantly increases the air intake area and improves the airflow per unit time; at the same time, the airflow enters symmetrically from both directions and is evenly discharged after converging at the air outlet, effectively avoiding the airflow deviation or dead zone problems caused by traditional single-sided air intake, thus improving the uniformity and overall efficiency of air purification.

[0018] 2. By simultaneously incorporating bottom and side air inlets in the first air intake section, a multi-directional air intake mode is achieved. The bottom air inlet effectively draws in polluted air close to the ground (such as dust, particulate matter, and other easily settling pollutants), while the side air inlets capture air pollutants from the middle and upper levels, thus achieving comprehensive air collection and purification across different height areas within the room and expanding the purification coverage. Multi-directional air intake also reduces the wind speed resistance of individual air inlets, minimizes intake noise, and improves the user experience.

[0019] 3. By designing the airflow to enter the inner side of the first filter element from the bottom and pass through the filter element from the inside out, this "inside in, outside out" filtration method ensures that pollutants are mainly deposited on the inner wall and internal pores of the filter element, extending the cleaning cycle of the outer surface of the filter element. At the same time, this flow direction design, combined with the upper and lower air intake structure, makes the airflow path more reasonable, reduces flow resistance, and improves filtration efficiency and airflow output stability.

[0020] 4. The design of the top filter cover forces air to pass through the filter material from the inside to the outside along the thickness of the filter element wall, preventing air from directly short-circuiting out through the through holes and ensuring that all air entering the filter element is effectively filtered.

[0021] 5. The double-layered, staggered blade structure significantly enhances the impeller's work capacity and airflow stability. The staggered arrangement of the upper and lower blades effectively cuts through airflow vortices, reducing airflow pulsation and noise, resulting in more continuous and stable airflow. Simultaneously, the double-layered structure increases the air pressure and airflow output per unit speed, enhancing the air purifier's delivery power and accelerating indoor air circulation, thereby improving purification efficiency.

[0022] 6. The protective net effectively prevents users' fingers or foreign objects from contacting the high-speed rotating impeller, improving the safety of product use. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the air purifier of this utility model.

[0024] Figure 2 This is a schematic diagram of the first air inlet section in the air purifier of this utility model.

[0025] In the diagram, 100 is the housing; 110 is the first air inlet; 111 is the first air inlet; 112 is the second air inlet; 120 is the second air inlet; 130 is the air outlet; 200 is the first filter element; 210 is the through hole; 220 is the filter element cover; 300 is the second filter element; 400 is the bracket; 500 is the motor; 600 is the impeller; 610 is the blade; and 700 is the protective net. Detailed Implementation

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, in this utility model, descriptions involving "first," "second," "a," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. In this utility model, unless otherwise explicitly specified and defined, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0027] The following are specific embodiments of this utility model, in conjunction with the accompanying drawings. Figure 1-2 The technical solution of this utility model will be further described below, but this utility model is not limited to the following embodiments.

[0028] This utility model provides an air purifier, mainly comprising a housing 100, a first filter element 200, a second filter element 300, a fan wheel 600, a motor 500, a bracket 400, and a protective net 700. The housing 100 serves as the external structural support for the entire unit. In this embodiment, it has an overall vertical cylindrical design; however, in other embodiments, it can be designed as a square or other suitable shape as needed. Its internal space is rationally divided to form a vertically connected airflow channel. The housing 100 includes a first air inlet 110, a second air inlet 120, and an air outlet 130 located between them. Specifically, the first air inlet 110 is located in the bottom region of the housing 100, the second air inlet 120 is located in the top region of the housing 100, and the air outlet 130 is located in the middle of the housing 100, forming an airflow pattern of "air inlet at the top and bottom, air outlet in the middle."

[0029] The first air intake section 110 is provided with a first air inlet 111 and a second air inlet 112. The first air inlet 111 is located on the bottom surface of the first air intake section 110 and is used to draw in polluted air close to the ground. Since pollutants such as dust, dander, and PM2.5 particles tend to settle near the ground under gravity, the bottom-surface air inlet can effectively capture these low-lying pollution sources, improving the removal capacity of settling particles. The second air inlet 112 is located on the side of the first air intake section 110, preferably on the annular sidewall. Furthermore, multiple second air inlets 112 are provided, evenly spaced along the circumference of the side of the first air intake section 110, with equal spacing between any two adjacent air inlets, forming a 360° surround air intake structure. This design allows the air purifier to collect air evenly from all directions, regardless of whether it is placed in the center of the room or near a wall, avoiding poor airflow due to partial obstruction and greatly improving the comprehensiveness and stability of air intake.

[0030] After air enters through the first air inlet 110, it first flows through the first filter element 200, which is located between the first air inlet and the air outlet 130. The first filter element 200 is vertically installed inside the housing 100. Air enters its inner cavity through the bottom opening of the first filter element 200, and then passes through the filter element wall from the inside to the outside to complete the filtration process, finally entering the air outlet 130 for discharge. This "inside-in, outside-out" filtration method ensures that pollutants are mainly deposited on the inner wall and internal pores of the filter element, extending the cleaning cycle of the outer surface of the filter element. At the same time, this flow direction design, combined with the upper and lower air inlet structure, makes the airflow path more reasonable, reduces flow resistance, and improves filtration efficiency and airflow output stability.

[0031] To further optimize the performance of the first filter element 200, in this embodiment it is designed as a conical structure with a cross-sectional area that gradually increases from top to bottom, i.e., the diameter at the lower end is larger than that at the upper end. This structure increases the effective filtration area of ​​the bottom air intake region, matching the larger air volume entering from the bottom, making the airflow distribution more uniform, and avoiding turbulence and noise caused by excessively high local wind speeds. At the same time, as the airflow flows upward, the filtration area gradually decreases, and the airflow naturally converges and smoothly transitions to the air outlet 130, reducing energy loss and improving the overall aerodynamic efficiency of the unit.

[0032] A through hole 210 is provided axially at the center of the first filter element 200 to guide airflow and reduce structural weight. To prevent air from flowing out directly through the through hole 210 without being filtered by the filter material, a filter element cover 220 is provided on the upper part of the first filter element 200. The filter element cover 220 is sealed and fixed to the top of the through hole 210, forcing all air entering the inner cavity of the filter element to pass through the filter material from the inside to the outside before entering the air outlet area. This ensures the mandatory and complete filtration process and guarantees the reliability of the purification effect.

[0033] Corresponding to the first air inlet 110, the second air inlet 120 is located at the top of the housing 100, and also contains a second filter element 300, which is situated between the second air inlet 120 and the air outlet 130. When air enters from the top second air inlet 112, it is first filtered by the second filter element 300 before converging into the air outlet 130. Thus, the two airflow paths, one above and one below, are purified by independent first and second filter elements 200 and 300 respectively, forming a dual-channel parallel filtration system. This design not only significantly increases the total filtration area and improves the air handling capacity per unit time, but also achieves synergistic purification of pollution sources at different heights—the bottom handles ground dust, while the top handles suspended particles and gaseous pollutants, resulting in more comprehensive and efficient purification. The dual-filter structure also facilitates modular design, allowing users to replace either filter element individually, reducing maintenance costs.

[0034] The purified air is discharged from the air outlet 130 by the impeller 600. This invention includes a bracket 400 inside the air outlet 130, through which the impeller 600 and motor 500 are stably mounted. Specifically, the motor 500 and impeller 600 are connected by a shaft; the motor 500 is fixed to one side of the bracket 400, and the impeller 600 is located on the other side of the bracket 400, separated by the bracket 400. This arrangement achieves physical isolation between the motor 500 and the air duct system. Simultaneously, the bracket 400 acts as a vibration damper and support, reducing the transmission of motor 500 vibration to the housing 100, thus improving the overall stability and quietness of the machine's operation.

[0035] In this embodiment, the impeller 600 has a double-layer air outlet structure on its side. Each layer consists of multiple blades 610 evenly distributed circumferentially, with the upper and lower layers of blades 610 staggered in the circumferential direction, meaning there is a phase difference between the upper and lower blades 610. This staggered double-layer blade structure can effectively cut airflow vortices, reduce airflow pulsation, and make the airflow output more continuous and stable. At the same time, the double-layer structure enhances the working capacity of the impeller 600, providing higher wind pressure and air volume at the same rotational speed, significantly increasing the air delivery distance and indoor air circulation speed, and accelerating the purification process. In addition, the staggered blade design helps improve the dynamic balance characteristics of the impeller 600, reduce operating noise and mechanical wear, and extend its service life.

[0036] To ensure safe operation, a protective net 700 is installed between the air outlet 130 and the impeller 600. This protective net 700 surrounds the impeller 600, forming a closed protective barrier to prevent accidental contact with the high-speed rotating impeller 600 by the user's fingers or foreign objects. The protective net 700 has multiple ventilation holes, the diameter of which is designed to balance ventilation efficiency and safety, ensuring effective isolation without affecting airflow.

[0037] The working process of this utility model is as follows: Motor 500 starts, driving impeller 600 to rotate at high speed, forming a negative pressure zone in the air outlet 130, thereby driving air to be simultaneously drawn in from the first air inlet 110 and the second air inlet 120. Air from the bottom enters through the first air inlet 111 and the circumferentially distributed second air inlets 112, passing through the conical first filter element 200 to complete filtration from the inside out; air from the top enters through the second air inlet 112 and is purified by the second filter element 300. The two purified airflows converge in the middle of the purifier, are pressurized by the double-layered staggered blades 610 impeller 600, and are evenly discharged to the outside of the air outlet 130 through the protective net 700.

[0038] In summary, this utility model, through its innovative overall structure of dual air intake at the top and bottom and air outlet at the center, combined with multi-directional air intake, dual filter configuration, internal-intake-external-outtake filtration, conical filter design, double-layer staggered impeller 600, and safety protection net 700, systematically solves the problems of insufficient air intake, uneven purification, easy filter clogging, and high noise in traditional air purifiers. This air purifier boasts advantages such as a large air intake area, reasonable airflow organization, high filtration efficiency, stable operation, and safety and reliability. It is particularly suitable for places with high air quality requirements, such as homes, offices, and hospitals, and has excellent market application prospects and promotional value.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An air purifier, characterized in that, include: The housing includes a first air inlet, a second air inlet, and an air outlet; The first air inlet and the second air inlet are respectively located on the upper and lower sides of the air outlet.

2. The air purifier according to claim 1, characterized in that, The first air inlet is provided with a first air inlet and a second air inlet. The first air inlet is located on the bottom surface of the first air inlet, and the second air inlet is located on the side surface of the first air inlet.

3. The air purifier according to claim 2, characterized in that, The second air inlet is configured as multiple, and the multiple second air inlets are distributed circumferentially along the side of the first air inlet, with the same interval between any two adjacent second air inlets.

4. The air purifier according to claim 1, characterized in that, It also includes a first filter element, which is disposed between the first air inlet and the air outlet. Air enters the inner side of the first filter element from the bottom through the first air inlet, passes through the first filter element from the inside to the outside, and is discharged through the air outlet.

5. The air purifier according to claim 4, characterized in that, The first filter element has through holes along the setting direction, and a filter element cover is provided on the upper part of the first filter element, the filter element cover closing the through holes.

6. The air purifier according to claim 4, characterized in that, The cross-sectional area of ​​the first filter element gradually increases from top to bottom.

7. The air purifier according to claim 1, characterized in that, It also includes a second filter element, which is disposed between the second air inlet and the air outlet.

8. The air purifier according to claim 1, characterized in that, It also includes a connected impeller and a motor. A bracket is provided inside the air outlet, and the motor is mounted on the bracket. The motor and the impeller are respectively located on both sides of the bracket.

9. The air purifier according to claim 8, characterized in that, The wind turbine is provided with a double-layer air outlet structure on its side. Each layer of the air outlet structure is composed of multiple blades evenly distributed along the circumference, and the blades of the upper and lower layers are staggered along the circumference.

10. The air purifier according to claim 8, characterized in that, A protective net is provided between the air outlet and the wind turbine, and the protective net is provided with ventilation holes. The protective net surrounds the wind turbine circumferentially.

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