New type of air purifier

Abstract

This utility model relates to a novel air purifier, comprising a front panel assembly (1), a filter assembly (2), a middle frame assembly (3), a volute assembly (4), a fan assembly (5), a motor assembly (6), a bracket assembly (7), a rear shell assembly (8), and an air outlet grille assembly (9). The middle frame assembly (3) forms the main frame, and the rear shell assembly (8) is fixedly connected to the rear of the middle frame assembly (3) by screws, together forming a receiving cavity. The advantages of this utility model are: the whole machine adopts a modular assembly structure, the connection between each component is reliable, and the assembly and disassembly are convenient. This not only ensures the structural strength and airtightness of the whole machine and improves production and maintenance efficiency, but also effectively reduces air leakage and operating vibration.

Description

Technical Field

[0001] This utility model relates to a novel air purifier, belonging to the field of air purification. Background Technology

[0002] Air purifiers have become key devices for improving indoor air quality, with core performance indicators including Clean Air Delivery Rate (CADR) and energy efficiency rating. Currently, most air purifiers on the market, while pursuing high performance, often face the challenge of reduced energy efficiency. Increasing fan speed to improve performance leads to significantly increased noise and an exponential increase in overall power consumption, resulting in decreased energy efficiency. Conversely, simply increasing the filter area increases system resistance, limiting or even reducing performance improvement.

[0003] In existing technologies, the duct structure and fan system design of air purifiers still have significant shortcomings. Specifically, these include insufficient air inlet area, unoptimized volute profile, and uneven airflow organization within the fan, which easily generates eddies and impact noise, further reducing overall operating efficiency and user experience. Therefore, achieving a balance between high performance and high energy efficiency without sacrificing noise and power has become a pressing technical problem to be solved in this field.

[0004] To address the aforementioned shortcomings, it is necessary to systematically optimize the overall air duct structure, volute air intake method, fan type, and motor drive method of air purifiers, and propose a new type of air purifier that can achieve higher energy efficiency while ensuring high performance output. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a novel air purifier. The technical solution of this utility model is as follows: A novel air purifier includes a front panel assembly (1), a filter assembly (2), a middle frame assembly (3), a volute assembly (4), a fan assembly (5), a motor assembly (6), a bracket assembly (7), a rear shell assembly (8), and an air outlet grille assembly (9). The middle frame assembly (3) forms the main frame, and the rear shell assembly (8) is fixedly connected to the rear of the middle frame assembly (3) by screws, together forming a receiving cavity. The bracket assembly (7) is fixedly installed on the inner side of the rear shell assembly (8). The motor assembly (6) is fixedly installed on the bracket assembly (7). The fan assembly (5) and the motor assembly (6) are connected together. The output shaft is connected; the volute assembly (4) covers the outside of the fan assembly (5) and is fixed to the bracket assembly (7) by screws, and the air outlet of the volute assembly (4) corresponds to the opening on the rear shell assembly (8); the filter assembly (2) is detachably installed inside the middle frame assembly (3) and is located in front of the air inlet of the volute assembly (4); the front panel assembly (1) is detachably installed at the front of the middle frame assembly (3) and forms a side air inlet (10) with the middle frame assembly (3); the air outlet grille assembly (9) is detachably installed at the air outlet of the rear shell assembly (8).

[0006] The air inlet (11) of the volute assembly (4) forms a regular hexagonal honeycomb structure.

[0007] The air inlet (11) edge of the volute assembly (4) has a venturi-shaped constriction section (12).

[0008] The angle of the volute line (13) of the volute assembly (4) is adjustable.

[0009] The filter assembly (2) includes a primary filter, a HEPA filter and an activated carbon filter containing negative oxygen ion spray arranged sequentially along the air inlet direction; the filter paper frame of the filter assembly (2) is a flat frame structure without flanges.

[0010] The fan assembly (5) is a backward centrifugal fan with its axis set in the horizontal direction.

[0011] The opening area of ​​the air inlet (11) of the volute assembly (4) is 215 cm². 2 .

[0012] The motor assembly (6) is a high-voltage DC brushless motor.

[0013] The volute assembly (4), fan assembly (5), motor assembly (6) and bracket assembly (7) are all installed in the receiving cavity.

[0014] The advantages of this utility model are: 1. By adopting a regular hexagonal honeycomb volute air inlet structure and combining it with a Venturi tubular contraction section design, the effective air inlet area is significantly expanded, the air inlet resistance is reduced, and the airflow organization is improved.

[0015] 2. The fan adopts a backward centrifugal fan in conjunction with a high-voltage DC brushless motor, and the volute profile and volute tongue structure are designed with fluid optimization, which significantly improves the efficiency of the fan and achieves low-noise operation and high-efficiency output while ensuring large air volume.

[0016] 3. The filter features a frameless design, increasing the effective filtration area; the three-layer composite structure (pre-filter + HEPA + activated carbon) combined with negative ion function significantly improves particulate matter capture efficiency, odor removal, and air freshening effect.

[0017] 4. The whole machine adopts a modular assembly structure, with reliable connections between components and convenient assembly and disassembly. This not only ensures the structural strength and airtightness of the whole machine and improves production and maintenance efficiency, but also effectively reduces air leakage and operating vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 yes Figure 1 Exploded view.

[0020] Figure 3 This is a schematic diagram illustrating the working principle of this utility model.

[0021] Figure 4 yes Figure 1 The main view of the volute component.

[0022] Figure 5 yes Figure 4 Rear view.

[0023] Figure 6 yes Figure 4 A sectional view. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0025] See Figures 1 to 6This utility model relates to a novel air purifier, comprising a front panel assembly 1, a filter assembly 2, a middle frame assembly 3, a volute assembly 4, a fan assembly 5, a motor assembly 6, a bracket assembly 7, a rear shell assembly 8, and an air outlet grille assembly 9. The middle frame assembly 3 forms the main frame, and the rear shell assembly 8 is fixedly connected to the rear of the middle frame assembly 3 by screws, together forming a receiving cavity. The bracket assembly 7 is fixedly installed on the inner side of the rear shell assembly 8. The motor assembly 6 is fixedly installed on the bracket assembly 7. The fan assembly 5 and the motor assembly 6... The output shaft is connected; the volute assembly 4 is covered outside the fan assembly 5 and fixed to the bracket assembly 7 by screws, and the air outlet of the volute assembly 4 corresponds to the opening on the rear shell assembly 8; the filter assembly 2 is detachably installed inside the middle frame assembly 3 and is located in front of the air inlet of the volute assembly 4; the front panel assembly 1 is detachably installed at the front of the middle frame assembly 3 and forms a side air inlet 10 between it and the middle frame assembly 3; the air outlet grille assembly 9 is detachably installed at the air outlet of the rear shell assembly 8.

[0026] Based on the above structural design, the following advantages are achieved: The components (such as the front panel, filter, volute, fan, motor, etc.) are connected by screws or magnetic attraction, which is convenient for assembly and disassembly, and facilitates production and maintenance, while ensuring structural strength and airtightness.

[0027] The combination of a backward centrifugal fan and a high-voltage DC brushless motor, along with optimized volute profile and volute tongue structure, significantly improves fan efficiency and achieves low noise, high air volume, and high energy efficiency.

[0028] Through structural optimization, improved airflow organization, and the selection of high-efficiency components, a balance between high performance and high energy efficiency has been achieved.

[0029] The motor, fan, volute and other components are all installed in a sealed cavity formed by the middle frame assembly and the rear shell assembly, which effectively reduces vibration and noise during operation and improves the stability of the whole machine and the user experience.

[0030] The air purifier has undergone systematic optimization in terms of air intake design, filtration system, power system and overall integration, resulting in excellent practicality, high efficiency and user experience.

[0031] The air inlet 11 of the volute assembly 4 forms a regular hexagonal honeycomb structure.

[0032] The air inlet 11 of the volute assembly 4 has a venturi-shaped constriction section 12 formed at its edge.

[0033] The air inlet of the volute assembly 4 adopts a regular hexagonal honeycomb structure, combined with a Venturi tube-shaped contraction section, which significantly increases the effective air intake area, reduces air intake resistance, and improves the uniformity of airflow organization.

[0034] Compared to traditional circular or square grilles, the hexagonal honeycomb structure achieves a higher open area ratio (i.e., the ratio of open area to total area) within the same region. This allows more air to enter the volute more smoothly, significantly reducing the flow resistance at the air inlet.

[0035] The honeycomb-shaped uniform grid can "combine" the incoming airflow to make it more even and stable, avoiding the sudden influx of large air masses, thereby reducing eddies caused by airflow impact and sudden changes in flow direction. Uniform airflow is a prerequisite for efficient and quiet operation of the fan.

[0036] The angle of the volute line 13 of the volute assembly 4 is adjustable. Traditional volute line designs are fixed for specific fan models. However, the adjustable angle design allows for adaptation to different specifications and performance characteristics of backward centrifugal fans without changing the mold, by adjusting the expansion angle of the volute line, greatly improving design flexibility and component versatility.

[0037] The filter assembly 2 includes a pre-filter, a HEPA filter, and an activated carbon filter containing negative ion spray, arranged sequentially along the air inlet direction; the filter paper frame of the filter assembly 2 has a flat frame structure without flanges. This structure comprehensively improves the effects of particulate matter capture, sterilization, odor removal, and air freshening.

[0038] The fan assembly 5 is a backward centrifugal fan, and its axis is set in the horizontal direction.

[0039] The opening area of ​​the air inlet 11 of the volute assembly 4 is 215 cm². 2 The air inlet opening area has been optimized to 215cm². 2 It meets the requirements for high energy efficiency.

[0040] The motor assembly 6 is a high-voltage DC brushless motor.

[0041] The volute assembly 4, fan assembly 5, motor assembly 6, and bracket assembly 7 are all installed in the receiving cavity.

[0042] The working principle of the high-efficiency air purifier described in this utility model is as follows: 1. Lateral air intake and initial distribution: After the equipment is started, the fan assembly 5 starts to rotate at high speed under the drive of the motor assembly 6, forming a negative pressure zone in front of the air inlet 11 of the volute assembly 4.

[0043] Under the influence of pressure difference, the indoor air to be purified is drawn into the device through the lateral air inlet 10 formed between the front panel assembly 1 and the middle frame assembly 3.

[0044] 2. Multi-layer filtration and contaminant removal: The intake air then passes evenly through filter assembly 2. This filter employs a three-layer composite design: Primary filter: First, it intercepts larger particles in the air, such as dust and hair.

[0045] HEPA filters: efficiently capture fine particulate matter such as PM2.5, pollen, mold spores, and bacteria.

[0046] Activated carbon filter containing negative ion spray: The activated carbon layer adsorbs gaseous pollutants and odors such as formaldehyde and TVOC; at the same time, the negative ion spray releases negative ions to further freshen the air.

[0047] In addition, the filter paper frame adopts a flat structure without flanges, which maximizes the effective filtration area, reduces wind resistance, and ensures smooth airflow while achieving efficient filtration.

[0048] 3. High-efficiency, low-resistance entry into the fan system: The filtered clean air reaches the air inlet 11 of the volute assembly 4.

[0049] The air inlet adopts a regular hexagonal honeycomb structure, and its high opening ratio greatly increases the effective air intake area and significantly reduces the resistance to air entry.

[0050] The Venturi tube-shaped constriction section 12 at the edge of the air inlet guides and accelerates the airflow, causing it to converge smoothly and evenly and be delivered to the center of the fan, thus avoiding the generation of turbulence and eddies.

[0051] 4. High-efficiency conversion of wind turbine work and energy: Air is efficiently drawn in and accelerated by the impeller of the backward centrifugal fan 5. The backward centrifugal fan itself has the advantages of a wide high-efficiency range and low energy consumption.

[0052] The fan is driven by a high-voltage DC brushless motor 6, which is characterized by high efficiency, good speed regulation and low noise.

[0053] Rotating air is collected and guided within the volute assembly 4. The adjustable volute line 13 design allows the volute shape to be optimally matched with the fan's performance, efficiently converting the kinetic energy of the air into static pressure and directing the airflow to the outlet.

[0054] 5. Clean air exhaust: The clean, high-pressure airflow, after being pressurized by the fan, is discharged from the volute outlet. Corresponding to the opening of the rear shell assembly 8, it is finally blown back into the room evenly and gently through the air outlet grille assembly 9, completing the entire air purification and circulation process.

[0055] This invention reduces inlet resistance by optimizing the air intake structure, achieves high-efficiency filtration while maintaining low air resistance through multi-layer flat filters, and utilizes energy through a high-efficiency power combination of a "rearward centrifugal fan, high-voltage DC motor, and adjustable volute". Ultimately, while ensuring a high clean air output rate (CADR), it significantly reduces the overall power consumption, achieving a balance between high performance and high energy efficiency, and also realizing low-noise operation.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new air purifier characterized by, The system includes a front panel assembly (1), a filter assembly (2), a middle frame assembly (3), a volute assembly (4), a fan assembly (5), a motor assembly (6), a bracket assembly (7), a rear shell assembly (8), and an air outlet grille assembly (9). The middle frame assembly (3) forms the main frame, and the rear shell assembly (8) is fixedly connected to the rear of the middle frame assembly (3) by screws, together forming a receiving cavity. The bracket assembly (7) is fixedly installed on the inner side of the rear shell assembly (8). The motor assembly (6) is fixedly installed on the bracket assembly (7). The fan assembly (5) is connected to the output shaft of the motor assembly (6). The volute assembly (4) is covered outside the fan assembly (5) and fixed to the bracket assembly (7) by screws. The air outlet of the volute assembly (4) corresponds to the opening on the rear shell assembly (8). The filter assembly (2) is detachably installed inside the middle frame assembly (3) and located in front of the air inlet of the volute assembly (4). The front panel assembly (1) is detachably installed at the front of the middle frame assembly (3) and forms a side air inlet (10) with the middle frame assembly (3). The air outlet grille assembly (9) is detachably installed at the air outlet of the rear shell assembly (8).

2. The new air purifier according to claim 1, characterized in that, The air inlet (11) of the volute assembly (4) forms a regular hexagonal honeycomb structure.

3. The new air purifier according to claim 2, characterized in that, The air inlet (11) edge of the volute assembly (4) has a venturi-shaped constriction section (12).

4. The novel air purifier according to claim 2 or 3, characterized in that, The angle of the volute line (13) of the volute assembly (4) is adjustable.

5. The new air purifier according to claim 4, characterized in that, The filter assembly (2) includes a primary filter, a HEPA filter and an activated carbon filter containing negative oxygen ion spray arranged sequentially along the air inlet direction; the filter paper frame of the filter assembly (2) is a flat frame structure without flanges.

6. The new air purifier according to claim 5, characterized in that, The fan assembly (5) is a backward centrifugal fan with its axis set in the horizontal direction.

7. The new air cleaner according to claim 1 or 6, characterized in that, The opening area of the air inlet (11) of the spiral case assembly (4) is 215 cm 2 .

8. The new air purifier according to claim 7, characterized in that, The motor assembly (6) is a high-voltage DC brushless motor.

9. The novel air purifier according to claim 8, characterized in that, The volute assembly (4), fan assembly (5), motor assembly (6) and bracket assembly (7) are all installed in the receiving cavity.

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