An air purifier

Abstract

The application discloses an air purifier, and relates to the technical field of air purification, which comprises a purifier shell, a fixing frame is arranged on the inner side wall of the purifier shell, the fixing frame is provided with a driving element, and an air inlet fan is arranged at the output end of the driving element; one end of the purifier shell is provided with a cover top, a plurality of air outlets are arranged on the circumference of the cover top, and the side wall of the cover top is clamped and fixed with the purifier shell; a fixing plate is arranged on the inner wall of the purifier shell, the fixing plate is provided with a clamping groove, a communication groove is arranged through the bottom surface of the clamping groove, and a filter screen box is clamped in the clamping groove; the driving element drives the air inlet fan to rotate, so that external air can smoothly enter the purifier, the cover top is clamped and fixed with the shell, the cover top is convenient to disassemble and install, and users can conveniently maintain the internal components; the clamping groove of the fixing plate is used for fixing the filter screen box, and the clamping and fixing mode is convenient for disassembling and replacing the filter screen box.

Description

Technical Field

[0001] This application relates to the field of air purification technology, and in particular to an air purifier. Background Technology

[0002] With the continuous increase in car ownership, in-car air quality has become an increasingly important concern. Volatile organic compounds such as formaldehyde and benzene emitted from new car interior materials, the infiltration of exhaust fumes and dust from outside the vehicle, and bacteria and mold growing in the air conditioning system all contribute to a complex in-car air pollution environment. Prolonged exposure to such a confined space poses a potential threat to the health of drivers and passengers. Against this backdrop, in-car air purifiers have emerged. With their compact and portable design and targeted purification functions, they have become important devices for improving in-car air quality and protecting the health of drivers and passengers. Existing in-vehicle air purifiers have innovated their filter structure by stacking and encapsulating a pre-filter, HEPA filter, and activated carbon filter in a unified filter housing. This integrated design allows the three filters to work closely together: the pre-filter intercepts large particulate pollutants first, reducing the load on subsequent filters; the HEPA filter focuses on efficiently filtering fine particles; and the activated carbon filter fully adsorbs harmful gases and odors. Regarding the aforementioned technologies, the inventors believe that due to the limited space in vehicles, air purifiers often adopt an integrated and compact design to adapt to the small environment inside the vehicle. The opening and closing structure of the outer shell is complex and concealed, and some products even require professional tools to open, making it inconvenient to replace the filter box. Utility Model Content

[0003] The purpose of this application is to provide an air purifier that improves the problem of inconvenient filter replacement.

[0004] This application provides a technical solution for an air purifier, which adopts the following: An air purifier includes a purifier housing, a fixing frame provided on the inner side wall of the purifier housing, a driving component provided on the fixing frame, and an air intake fan provided at the output end of the driving component; a cover provided at one end of the purifier housing, a plurality of air outlets provided around the circumference of the cover, and the side wall of the cover being engaged and fixed to the purifier housing; a fixing plate provided inside the purifier housing against its inner wall, the fixing plate being provided with a slot, a through groove being provided on the bottom surface of the slot, and a filter box being engaged and fixed in the slot.

[0005] By adopting the above technical solution, the driving component drives the air intake fan to rotate, ensuring that outside air can smoothly enter the purifier and provide a foundation for the subsequent purification process; the top cover and the outer shell are locked together, which is convenient for disassembly and installation and allows users to maintain the internal components; the fixing plate is equipped with a slot for fixing the filter box, and the locking method makes it easy to disassemble and replace the filter box.

[0006] Optionally, the top of the cover is conical and has inclined sidewalls, and the air outlet is located on the inclined sidewalls.

[0007] By adopting the above technical solution, the inclined sidewall can guide the purified air to diffuse and be discharged more smoothly from the air outlet, accelerate the air diffusion speed, and enable the purified air to circulate more efficiently in the vehicle interior.

[0008] Optionally, the top surface of the cover is provided with an arc-shaped groove, and a pinch plate for easy handling is provided in the arc-shaped groove.

[0009] By adopting the above technical solution, when disassembling the cover, users can pinch the clamping plate to remove the cover more easily, thus improving the convenience of operation.

[0010] Optionally, the inner sidewall of the connecting groove is provided with a number of plates, and the plates are provided with a number of concentric ring plates of different sizes.

[0011] By employing the above technical solution, the plates and ring plates can guide the airflow as it passes through the connecting slot. By changing the direction and distribution of airflow, the air can enter the filter box more evenly, improving the uniformity and effectiveness of air purification. Optionally, some of the ring plates are inclined outwards.

[0012] By adopting the above technical solution, the outward-tilted ring plate can more effectively guide the air to diffuse in all directions, increase the contact area and contact time between the air and the filter screen, thereby improving the filtration efficiency and making the air more thoroughly purified.

[0013] Optionally, the inner sidewall of the purifier housing is provided with a plurality of fixed threaded cylinders, and the fixing plate is provided with a plurality of fixing holes adapted to the fixed threaded cylinders. The fixing plate and the fixed threaded cylinders are fixedly connected by screws.

[0014] By adopting the above technical solution, the fixing plate is fixedly connected to the air purifier shell by fixing threaded cylinder and screws. This connection method provides reliable structural stability and is detachable, making the fixing plate replaceable and helping to improve the overall service life of the air purifier.

[0015] Optionally, the fixing plate is provided with arc grooves on both sides of the slot to facilitate manual removal of the filter box.

[0016] By adopting the above technical solution, when the filter box needs to be replaced, the user can simply insert their fingers into the arc groove, pinch the filter box, and remove it without the need for other tools, thus simplifying the replacement process and improving replacement efficiency.

[0017] Optionally, a baffle fan is provided at the end of the purifier housing away from the top cover, and the projection of the baffle fan blades along the length of the purifier housing covers the inner diameter circle of the purifier housing.

[0018] By adopting the above technical solution, the projected blades of the blocking fan cover the inner diameter of the purifier's outer shell, which can effectively block larger particles of impurities from entering the purifier's interior. This helps prevent these impurities from directly impacting the intake fan and extends the lifespan of the intake fan.

[0019] Optionally, the inner side wall of one end of the purifier housing is provided with a sliding plug inclined surface corresponding to the top of the cover.

[0020] By adopting the above technical solution, when installing the cover, simply push the cover gently along the inclined side of the plug, and it can be quickly and accurately locked into the air purifier shell, improving installation efficiency.

[0021] In summary, this application includes at least one of the following beneficial technical effects of air purifiers: 1. The drive unit drives the intake fan to rotate, ensuring that outside air can smoothly enter the purifier and provide a foundation for the subsequent purification process; the top cover and the outer shell are locked together, making it easy to disassemble and install and allowing users to maintain the internal components; the fixing plate has slots for fixing the filter box, and the locking method makes it easy to disassemble and replace the filter box. 2. The sloping sidewalls can guide the purified air to diffuse and be discharged more smoothly from the air outlet, accelerating the air diffusion speed and allowing the purified air to circulate more efficiently in the vehicle's interior. 3. The projected blades of the baffle fan cover the inner diameter of the purifier's outer shell, effectively blocking larger particles of impurities from entering the purifier. This helps prevent these impurities from directly impacting the intake fan and extends its service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an air purifier; Figure 2 This is a schematic diagram illustrating the fixed plate structure in the embodiment; Figure 3 This is a schematic diagram illustrating the ring plate structure in the embodiment; Figure 4 This is a schematic diagram illustrating the structure of the air intake fan in the embodiment; Figure 5 This is a schematic diagram illustrating the blocking fan structure in the embodiment.

[0023] In the diagram, 1. Purifier housing; 11. Plug-in slant; 2. Mounting bracket; 21. Drive unit; 22. Intake fan; 3. Top cover; 31. Sloping side wall; 311. Air outlet; 32. Arc groove; 321. Pinch plate; 4. Mounting plate; 41. Slot; 411. Connecting slot; 42. Mounting hole; 43. Arc groove; 5. Plate; 51. Ring plate; 6. Mounting threaded cylinder; 7. Baffle fan. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] An air purifier, as described Figure 1 The purifier includes a shell 1 made of engineering plastic, which has a certain strength and durability to protect the internal components. One end of the shell 1 has a cover 3 made of rigid plastic, which is conical with inclined sidewalls 31. Several air outlets 311 are evenly distributed on the inclined sidewalls 31 around the circumference of the cover 3. These outlets 311 are used to discharge purified air, and the inclined sidewalls 31 design facilitates smoother airflow. The top surface of the cover 3 has an arc-shaped groove 32, within which an easy-to-grab pinch plate 321 is integrally installed.

[0026] Reference Figure 2 The side wall of the cover 3 is fixed to the outer shell 1 of the purifier by a snap-fit ​​structure, specifically, the inner side wall of the outer shell 1 and the outer side wall of the cover 3 are engaged. One end of the inner side wall of the purifier shell 1 is provided with a sliding plug inclined surface 11 corresponding to the cover 3. This sliding plug inclined surface 11 can play a guiding role when installing the cover 3. Reference Figure 2 A fixing plate 4 is fitted inside the inner wall of the air purifier shell 1. The fixing plate 4 has a slot 41, the shape of which matches the shape of the filter box. A through groove 411 is provided through the bottom surface of the slot 41. The filter box is installed inside the slot 41 by an interference fit. The filter box contains a pre-filter, a HEPA filter, and an activated carbon filter stacked and encapsulated inside. The fixing plate 4 has arc-shaped grooves 43 on both sides of the slot 41 for easy manual removal of the filter box, allowing users to easily insert or remove it.

[0027] Reference Figure 3 The inner sidewall of the connecting groove 411 is integrally formed with several plates 5. In this embodiment, four plates are preferred. The plates 5 are provided with three concentric ring plates 51 of different sizes. These ring plates 51 are all inclined outward.

[0028] Reference Figure 3 , Figure 4Four evenly distributed threaded cylinders 6 are integrally formed on the inner circumference of the purifier housing 1. The fixing plate 4 has four fixing holes 42 that are adapted to the threaded cylinders 6. The fixing plate 4 and the threaded cylinders 6 are fixedly connected by screws passing through the fixing holes 42 and screwing into the threaded cylinders 6, which is stable and easy to disassemble and maintain. Reference Figure 4 The inner wall of the purifier housing 1 is provided with a fixing frame 2 by injection molding. A drive component 21 is fixedly installed on the fixing frame 2 by screws. The drive component 21 is preferably a DC motor. Its output end is fixedly connected to the air intake fan 22 through a coupling. The drive component 21 drives the air intake fan 22 to rotate, thereby drawing outside air into the purifier.

[0029] Reference Figure 5 A baffle fan 7 is provided at the end of the purifier housing 1 away from the top cover 3. The fan blades of the baffle fan 7 are fixedly connected to the inner wall of the purifier housing 1 by heat fusion. The projection of the fan blades of the baffle fan 7 along the length of the purifier housing 1 covers the inner diameter circle of the purifier housing 1.

[0030] The implementation principle of this application embodiment is as follows: In actual use, after the power is turned on, the drive unit 21 drives the intake fan 22 to rotate, generating suction to allow outside air to enter from the uncovered end 3. After passing through the baffle fan 7, it passes through the connecting groove 411 of the fixing plate 4. The outwardly inclined ring plate 51 on the inner side wall plate 5 of the connecting groove 411 guides the air to enter the filter box in the slot 41 evenly. The air purified by the filter box reaches the cover 3 of the conical inclined side wall 31 through the space between the fixing plate 4 and the outer shell, and is discharged from the circumferential air outlet 311. When replacing the filter box, the cover 3 is removed by the locking structure between the cover 3 and the outer shell. The filter box is taken out by the arc grooves 43 on both sides of the slot 41 of the fixing plate 4. After replacement, the cover 3 can be installed by the guide of the inclined surface 11. This makes it easy to open the purifier to replace the filter box.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air purifier, comprising a purifier housing (1), characterized in that: The inner wall of the purifier housing (1) is provided with a fixing frame (2), the fixing frame (2) is provided with a driving component (21), and the output end of the driving component (21) is provided with an air intake fan (22); one end of the purifier housing (1) is provided with a cover (3), the cover (3) is provided with a plurality of air outlets (311) around its circumference, and the side wall of the cover (3) is engaged and fixed to the purifier housing (1); a fixing plate (4) is provided inside the purifier housing (1) against its inner wall, the fixing plate (4) is provided with a slot (41), the bottom surface of the slot (41) is provided with a through groove (411), and a filter screen box is engaged in the slot (41).

2. An air purifier according to claim 1, characterized in that: The top cover (3) is cone-shaped and has an inclined sidewall (31), and the air outlet (311) is located on the inclined sidewall (31).

3. An air purifier according to claim 2, characterized in that: The top surface of the cover (3) is provided with an arc groove (32), and a pinch plate (321) for easy handling is provided in the arc groove (32).

4. An air purifier according to claim 1, characterized in that: The inner sidewall of the connecting groove (411) is provided with a number of plates (5), and the plates (5) are provided with a number of concentric ring plates (51) of different sizes.

5. An air purifier according to claim 4, characterized in that: Several of the ring plates (51) are inclined outward.

6. An air purifier according to claim 1, characterized in that: The inner wall of the purifier housing (1) is provided with a plurality of fixed threaded cylinders (6), and the fixing plate (4) is provided with a plurality of fixing holes (42) that are adapted to the fixed threaded cylinders (6). The fixing plate (4) and the fixed threaded cylinders (6) are fixedly connected by screws.

7. An air purifier according to claim 6, characterized in that: The fixing plate (4) is provided with arc grooves (43) on both sides of the slot (41) to facilitate manual removal of the filter box.

8. An air purifier according to claim 1, characterized in that: A blocking fan (7) is provided at one end of the purifier housing (1) away from the top cover (3), and the projection of the fan blades of the blocking fan (7) along the length direction of the purifier housing (1) covers the inner diameter circle of the purifier housing (1).

9. An air purifier according to claim 8, characterized in that: The inner side wall of one end of the purifier housing (1) is inclined with a plug-in inclined surface (11) corresponding to the top cover (3).

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