A portable air purifier

By designing a portable air purifier, using a 3D-printed shell and negative ion generator, combined with magnetic wearable components, the problem of air purifiers being inconvenient to carry and wear has been solved, achieving efficient air purification and convenient use in outdoor environments.

CN224302273UActive Publication Date: 2026-05-29TARIM UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TARIM UNIV
Filing Date
2025-07-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing air purifiers are bulky and inconvenient to carry. Some portable purifiers are inconvenient to wear and occupy both hands, causing fatigue during use and making them difficult to use effectively in outdoor settings.

Method used

A portable air purifier has been designed with a 3D-printed shell, equipped with a HEPA filter and a negative ion generator. Combined with wearable components, it is magnetically attached to clothing to ensure that the purifier is kept at the optimal distance from the mouth and nose, achieving both portability and efficient air purification.

Benefits of technology

It achieves efficient air purification in outdoor environments, reduces the discomfort of dust inhalation, provides a convenient air purification solution, and avoids fatigue caused by hand-holding or backpack storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a portable air purifier and belongs to the technical field of air purifiers. Mainly includes: the shell is equipped with the air inlet hole, the filter screen is installed in the air inlet hole, the assembly frame is installed in the shell, the negative ion generator is installed on the assembly frame, the air blower is installed in the shell, the air outlet hole is arranged on the shell and matched with the air blower, the wearing assembly is installed on the shell, the wearing assembly at least includes two groups of collar clips installed on the shell, and the sliding groove is arranged on the collar clip. The portable air purifier of the application generates negative ions by the negative ion generator after the external air is filtered through the filter screen of the air inlet hole of the shell, the air blower discharges the negative ions from the air outlet hole, the wearing assembly is magnetically attracted and fixed through the main magnetic attraction ring and the auxiliary magnetic attraction ring, the collar clip is clamped on the clothes and is not easy to shake, the optimal distance between the mouth and the nose is kept, and portable purification is realized.
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Description

Technical Field

[0001] This application relates to the field of air purifier technology, specifically a portable air purifier. Background Technology

[0002] As people's demands for air quality in their living environment increase, the need for portable and efficient air purification devices is becoming increasingly urgent. In Aksu Prefecture of southern Xinjiang, affected by the Taklamakan Desert, sandstorms are frequent, with a phenomenon of "a small sandstorm every three days and a large one every five days." Existing air purifiers are bulky and inconvenient to carry, making them difficult to use in outdoor environments. At the same time, some portable air purifiers still need to be held in the hand or carried in a backpack, which is inconvenient to wear, can easily cause fatigue during use, and occupies the user's hands. Therefore, it is necessary to provide a portable air purifier to solve the above problems. Utility Model Content

[0003] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a portable air purifier that solves the problems of some existing air purifiers being large in size and inconvenient to carry, and some portable purifiers being inconvenient to wear, occupying both hands, and easily causing fatigue.

[0004] The technical solution adopted by this application to solve its technical problem is: a portable air purifier, comprising:

[0005] The housing has an air inlet, a filter screen is installed inside the air inlet, an assembly frame is installed inside the housing, a negative ion generator is installed on the assembly frame, a blower is installed inside the housing, and an exhaust port adapted to the blower is provided on the housing.

[0006] A wearable component is mounted on the housing. The wearable component includes at least two sets of collar clips mounted on the housing. Each collar clip has a sliding groove, and a central post slides within the sliding groove. A main magnetic ring is mounted at the lower end of the central post. Positioning grooves are provided on both sides of the housing, and auxiliary magnetic rings adapted to the main magnetic rings are mounted within the positioning grooves.

[0007] Furthermore, the filter is a HEPA filter.

[0008] Furthermore, the housing is formed using 3D printing.

[0009] Furthermore, a guardrail adapted to the air inlet is installed on the housing.

[0010] Furthermore, a flow divider is installed inside the exhaust port.

[0011] Furthermore, limit strips are installed on both sides of the slide, and limit grooves adapted to the limit strips are provided on both sides of the intermediate column.

[0012] Furthermore, an adjustment head is installed at the upper end of the intermediate column.

[0013] The beneficial effects of this application are as follows: The portable air purifier provided by this application filters the outside air through the filter screen of the air inlet of the shell, generates negative ions by the negative ion generator, and discharges them from the exhaust port by the blower. The wearable component is magnetically fixed by the main magnetic ring and the auxiliary magnetic ring, so that the collar clip is clipped to the clothing and is not easy to shake, maintaining the optimal distance from the mouth and nose, thus achieving portable purification.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a first three-dimensional structural schematic diagram of a portable air purifier according to an embodiment of this application;

[0017] Figure 2 This is a second three-dimensional structural schematic diagram of a portable air purifier according to an embodiment of this application;

[0018] Figure 3 This is a three-dimensional structural diagram of the internal components of the housing according to an embodiment of this application;

[0019] Figure 4 This is a partial three-dimensional structural schematic diagram of the housing according to an embodiment of this application;

[0020] Figure 5 This is a three-dimensional structural diagram of a wearable component according to an embodiment of this application.

[0021] The following are the labeling elements in the figure:

[0022] 1. Air purification component; 11. Housing; 12. Air inlet; 121. Filter; 122. Guardrail cover; 13. Assembly frame; 131. Through hole; 14. Negative ion generator; 15. Blower; 151. Exhaust port; 152. Diverter plate; 16. Top cover; 17. Switch button; 18. Power indicator; 19. Battery compartment; 2. Wearable component; 21. Lapel clip; 22. Slide groove; 23. Limiting strip; 24. Intermediate column; 25. Limiting groove; 26. Main magnetic ring; 27. Adjustment head; 28. Positioning groove; 29. ​​Auxiliary magnetic ring. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figures 1-5 As shown, this application provides a portable air purifier, including an air purification component 1. This component 1 purifies the air through intake filtration, negative ion generation, and exhaust ventilation, providing clean air to the user. The air purification component 1 includes a housing 11, which serves as the main frame of the entire air purification component 1, supporting and protecting the internal components. Its shape is reminiscent of a poplar leaf, innovating in appearance while also reflecting local characteristics. It is made using 3D printing, making it more environmentally friendly than commercially available plastic shells. An air inlet 12 is located at the front end of the housing 11, serving as the entry point for air into the purifier. Outside air passes through... The air inlet 12 enters the interior of the housing 11, providing an air source for subsequent filtration and purification processes. A removable filter 121 is installed inside the air inlet 12. This filter 121 is a HEPA filter, used to intercept pollutants such as particulate matter, dust, bacteria, and viruses in the air. It can effectively intercept particulate matter larger than 2.5 microns in the air, achieving preliminary filtration of the air. A guardrail 122 adapted to the air inlet 12 is fixed on the housing 11. This guardrail 122 can reduce the entry of larger debris and foreign objects into the air inlet 12, reducing the possibility of these objects clogging the air inlet 12 or damaging internal components such as the filter 121, while not affecting the normal flow of air.

[0026] Specifically, despite its small size, this air purifier achieves localized purification. Its HEPA filter 121 effectively intercepts common pollutants such as dust and particulate matter in sandy weather. Combined with the negative ion generator 14, which releases negative air ions, it can act on the filtered air to reduce harmful particles. In outdoor sandy environments, it can quickly form a clean airflow in the user's breathing area after being turned on, significantly reducing the discomfort of inhaling dust. It is especially suitable for daily use in sandy areas such as southern Xinjiang.

[0027] An assembly frame 13 is fixed to the front end inside the housing 11. The assembly frame 13 is a concave frame that surrounds the air inlet 12. The assembly frame 13 has multiple through holes 131 through which air can flow, allowing the air that has been initially filtered by the filter screen 121 to reach the negative ion generation part for subsequent negative ion treatment. A negative ion generator 14 is bolted to the rear end of the assembly frame 13. The negative ion generator 14 is a conventional negative ion generator in the prior art, which can be easily obtained by those skilled in the art and will not be described in detail here. The negative ion generator converts the input DC or AC voltage into a pure DC negative high voltage. It uses the DC high voltage at the tip of the carbon brush to generate a high corona discharge and release a large number of electrons at high speed. The electrons are captured by oxygen molecules in the air to generate negative air ions. Negative air ions have the functions of purifying the air and promoting human blood circulation and metabolism.

[0028] A blower 15 is bolted to the rear end of the housing 11. The blower 15 generates airflow by operating, which disperses the negative ions generated by the negative ion generator 14 to the outside of the housing 11, thereby achieving the diffusion of negative ions in the air and purifying the air. The rear end of the housing 11 is provided with an exhaust port 151 adapted to the blower 15. The exhaust port 151 is the channel for the purified air (containing negative ions) to exit the housing 11, so that the treated air can be released into the external environment. A diverter plate 152 is fixed inside the exhaust port 151. The diverter plate 152 divides the exhaust air, making the exhaust air more uniform.

[0029] A top cover 16 is bolted to the housing 11. The top cover 16 is bolted to the housing 11 to close the housing 11 and protect the internal components. A switch button 17 and a power indicator 18 are respectively installed on the front end of the top cover 16. The switch button 17 is electrically connected to the negative ion generator 14 and the blower 15 and is used to control the start and stop of the switch button 17 and the negative ion generator 14 for user convenience. A battery compartment 19 is installed at the rear end of the housing 11. A button battery (not shown in the figure) is installed in the battery compartment 19. The battery compartment 19 is used to accommodate and install the button battery to provide power to the various components of the purifier, such as the negative ion generator 14, the blower 15, the switch button 17, and the power indicator 18. At the same time, the power indicator 18 is used to display the power status of the button battery in the battery compartment 19 so that the user can know the remaining power of the battery in time so that the battery can be replaced in time.

[0030] Specifically, from a practical usage perspective, the portability of this air purifier is highly practical. Its lightweight design ensures it won't burden the user's activities when worn. The battery life is sufficient for a day's outdoor needs, eliminating the need for frequent battery changes. Once secured with the wearable component 2, it remains stably positioned near the mouth and nose. The purified airflow from the blower 15 continuously covers the breathing area, creating a locally clean environment and preventing the direct inhalation of unpurified outside air. Compared to the limitations of large air purifiers that are not portable and ordinary portable products that struggle to focus on the breathing area, this design precisely addresses the core need for "clean air at all times" in outdoor scenarios.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, a wearable component 2 is installed at the end of the housing 11 away from the top cover 16. This wearable component 2 is used for the portable wearing of this purifier and adapts to different wearing positions to ensure the optimal purification distance between the purifier and the mouth and nose. The wearable component 2 includes at least two sets of collar clips 21 fixed to the housing 11. The collar clips 21 are symmetrically arranged and can clip the purifier to the user's collar, pocket, etc., to achieve portable wearing of the purifier and facilitate use by the user during outdoor activities. Each collar clip 21 is provided with a sliding groove 22, and a limiting strip 23 is fixed on both sides of the sliding groove 22. A middle post 24 slides in the sliding groove 22, and the middle post 24 is provided with limiting grooves 25 on both sides that are adapted to the limiting strips 23. The sliding groove 22 is used to accommodate the middle post 24. The intermediate column 24 is slidable within the slide groove 22, thereby changing its position. Simultaneously, the intermediate column 24 slides on the limiting strip 23 via the limiting groove 25, limiting its position during sliding and ensuring that it can only slide in a specific direction within the slide groove 22, reducing the possibility of positional movement. An adjustment head 27 is fixed to the upper end of the intermediate column 24, allowing the user to manually operate the intermediate column 24 to slide within the slide groove 22, thereby changing its position and positioning and securing the wearing state of the wearable component 2. This effectively reduces the phenomenon of positional wobbling of the collar clip 21 during use, ensuring that the distance between the purifier and the user's mouth and nose does not easily change.

[0032] The lower end of the intermediate column 24 extends to the outside of the slide groove 22 and is fixed with a main magnetic ring 26. The main magnetic ring 26 securely connects the wearable component 2 to the housing 11 through magnetic force. The housing 11 has positioning grooves 28 on both sides. An auxiliary magnetic ring 29 that matches the main magnetic ring 26 is fixed in the positioning groove 28. The auxiliary magnetic ring 29 is connected to the main magnetic ring 26 through magnetic force, making the wearable component 2 more secure when clamping the user's clothes and reducing the shaking phenomenon of the purifier during wear.

[0033] Working principle: This air purifier achieves air purification and portable wearability through the set air purification component 1 and wearable component 2.

[0034] In the air purification component 1, outside air enters through the air inlet 12 at the front end of the housing 11 and is filtered by the filter 121 to intercept PM2.5, dust and other particles larger than 2.5 microns. Thus, the filtered air passes through the assembly frame 13 and the through hole 131 to reach the negative ion generator 14, which converts DC or AC voltage into negative high voltage, causing the tip of the carbon brush to discharge and generate electrons. The electrons combine with oxygen molecules to generate negative air ions.

[0035] At this time, the blower 15 operates to discharge negative ions through the exhaust port 151. The diverter plate 152 inside the exhaust port 151 makes the airflow uniform. The switch button 17 on the top cover 16 controls the start and stop of the negative ion generator 14 and the blower 15. The power display 18 displays the power of the button battery in the battery compartment 19 in real time. The battery powers all components.

[0036] The wearable component 2 is clipped to the collar or other positions by two sets of collar clips 21. The central column 24 in the slide 22 can slide along the slide 22. The adjustment head 27 is easy to operate. The limiting strip 23 and the limiting groove 25 ensure that the central column 24 slides in a specific direction. The magnetic force of the main magnetic ring 26 and the auxiliary magnetic ring 29 allows the wearable component 2 to hold the user's clothes more firmly, reducing shaking during use and ensuring that the distance between the purifier and the mouth and nose is appropriate, so that the user's breathing area is surrounded by negative ions, thus achieving air purification.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable air purifier, characterized in that: include: The housing (11) has an air inlet (12) and a filter (121) installed inside the air inlet (12). The housing (11) has an assembly frame (13) installed inside the housing (13) and a negative ion generator (14) installed on the assembly frame (13). The housing (11) has a blower (15) installed inside the housing (11) and an exhaust port (151) adapted to the blower (15). Wearable component (2) is mounted on housing (11). Wearable component (2) includes at least two sets of collar clips (21) mounted on housing (11). Each collar clip (21) is provided with a sliding groove (22). A middle post (24) slides in the sliding groove (22). A main magnetic ring (26) is installed at the lower end of the middle post (24). Positioning grooves (28) are provided on both sides of housing (11). An auxiliary magnetic ring (29) adapted to the main magnetic ring (26) is installed in the positioning groove (28).

2. The portable air purifier according to claim 1, characterized in that: The filter (121) is a HEPA filter.

3. A portable air purifier according to claim 1, characterized in that: The housing (11) is fitted with a guardrail (122) adapted to the air inlet (12).

4. A portable air purifier according to claim 1, characterized in that: A flow divider (152) is installed inside the exhaust port (151).

5. A portable air purifier according to claim 1, characterized in that: Limiting strips (23) are installed on both sides of the slide (22), and limiting grooves (25) adapted to the limiting strips (23) are provided on both sides of the intermediate column (24).

6. A portable air purifier according to claim 1, characterized in that: An adjusting head (27) is installed at the upper end of the intermediate column (24).