A formaldehyde-removing air purifier

By incorporating replacement reminder components and other features into the air purifier, the problem of impurities adhering to the filter cartridge and not being easily detected is solved, enabling timely replacement and improving purification efficiency to ensure effective formaldehyde removal.

CN224434631UActive Publication Date: 2026-06-30MUDANJIANG QIYUANXING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MUDANJIANG QIYUANXING TECHNOLOGY CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing air purifiers cannot clearly and promptly indicate the amount of impurities adhering to the filter cartridge, resulting in reduced purification efficiency and failure to achieve the expected formaldehyde removal effect.

Method used

The design includes a replacement reminder component and a replacement component, comprising a purification filter element, connecting strip, support strip, detection plate, pressure sensor plate, placement plate, reminder speaker, positioning block, and magnetic strip. It uses weight detection and sound to remind users to replace the filter cartridge in a timely manner.

Benefits of technology

It enables timely reminders for users to replace the filter cartridge, preventing a decrease in purification efficiency and improving the effectiveness of the air purifier.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224434631U_ABST
    Figure CN224434631U_ABST
Patent Text Reader

Abstract

This utility model belongs to the technical field of formaldehyde removal air purifiers and discloses a formaldehyde removal air purifier, including a purifier body. A replacement indicator component is installed on the surface of the purifier body. The replacement indicator component includes a purification filter element disposed inside the purifier body, a connecting strip symmetrically installed on the bottom surface of the purification filter element, a support strip for detecting weight, a detection plate, a pressure sensing plate, and a placement plate. The replacement component, also installed on the surface of the purifier body, includes a cover plate disposed at the opening of the purifier body and positioning blocks symmetrically installed on the cover plate near the purification filter element. This utility model can promptly alert the user when the purification filter element is covered with impurities, avoiding the user's inability to visually detect the problem, thus preventing a decrease in the air purifier's purification efficiency and failure to achieve the expected formaldehyde removal effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of formaldehyde removal air purifiers, specifically a formaldehyde removal type air purifier. Background Technology

[0002] Air purifiers, also known as air cleaners, air fresheners, or air purifiers, are products that can adsorb, decompose, or transform various air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde and other decoration pollution, bacteria, allergens, etc.) to effectively improve air cleanliness. They are mainly divided into household, commercial, industrial, and building types.

[0003] Meanwhile, CN218915266U, "An Air Purifier for Removing Formaldehyde Particulate Matter," describes an air purifier for removing formaldehyde particulate matter. In use, it includes a support frame with a hollow interior housing the main body. A rotating shaft protrudes from both sides of the main body and is rotatably connected to the support frame. This air purifier uses a fan driven by a blower to adsorb air, and works in conjunction with a filter cartridge containing a top cover, a coarse filter, a high-efficiency filter, an activated carbon filter, a composite filter, and an ultraviolet lamp to adsorb and decompose pollutants in the air, thus completing the filtration and purification process. The gaps at the top and bottom of the support frame and the rotating arrangement of the main body within the frame, combined with the overall structure of the filter cartridge, allow for convenient disassembly and cleaning of the filter cartridge and fan separately. The rotating shafts allow for easy display and concealment of the mounting positions at both ends of the main body, facilitating disassembly while maintaining the integrity and aesthetics of the main body's exterior.

[0004] In actual use, the above-mentioned technical solutions make it difficult to intuitively and timely perceive the adhesion of impurities on the filter cartridge. Due to the lack of effective prompts or monitoring methods, users often cannot detect when the filter cartridge surface is covered with impurities, resulting in a significant decrease in the purification efficiency of the air purifier and failure to achieve the expected formaldehyde removal effect.

[0005] Therefore, a formaldehyde-removing air purifier is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a formaldehyde-removing air purifier that can promptly alert the user when the filter components are covered with impurities, thus preventing the user from failing to notice the problem and causing a decrease in the air purifier's purification efficiency, which would prevent the desired formaldehyde removal effect from being achieved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a formaldehyde-removing air purifier, comprising a purifier body;

[0008] The surface of the purifier body is equipped with a replacement reminder component, which includes a purification filter element disposed inside the purifier body, a connecting strip symmetrically installed on the bottom surface of the purification filter element, a support strip for detecting weight, a detection plate, a pressure sensing plate, and a placement plate.

[0009] The surface of the purifier body is equipped with a replacement component, which includes a cover plate disposed at the opening of the purifier body, positioning blocks symmetrically installed on the cover plate near the purification filter, and magnetic strip one and magnetic strip two for stabilization.

[0010] Preferably, two support bars are symmetrically installed inside the purifier body, the connecting bar is inserted into the support bars, the detection plate is installed inside the support bars, the connecting bar is attached to the upper surface of the detection plate, two placement plates are symmetrically installed inside the purifier body, the pressure sensing plate is installed inside the placement plates, and the contact of the detection plate passes through the support bars and is connected to the pressure sensing plate.

[0011] Preferably, the surface of the purifier body is symmetrically equipped with warning speakers.

[0012] Preferably, a guide plate is installed on the surface of the placement plate, and the guide plate is cut into an upward tangential bevel.

[0013] Preferably, the positioning block is snapped into the inside of the support strip, and one end of the positioning block is inserted into a slot opened on the surface of the connecting strip.

[0014] Preferably, two magnetic strips are symmetrically installed on the side of the cover plate near the main body of the purifier, and two magnetic strips are respectively installed in grooves symmetrically opened on the surface of the main body of the purifier. The magnetic strips are inserted into the grooves and magnetically attracted to each other.

[0015] Preferably, both the first magnetic strip and the second magnetic strip are elongated strip-shaped structures.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model incorporates a replacement reminder component, which promptly alerts the user when the purification filter becomes saturated with impurities. This prevents the user from failing to notice the problem, thus reducing the purification efficiency of the purifier and achieving the desired formaldehyde removal effect, thereby further improving the overall performance of the purifier.

[0018] 2. This utility model incorporates a replacement component, allowing users to easily and quickly replace the purification filter after hearing a prompt, greatly improving the performance of the purifier and stabilizing the cover. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the purification filter element and connecting strip of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting strip and support strip of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the placement plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the split structure of the cover plate and the main body of the purifier of this utility model;

[0024] Figure 6 This is a schematic diagram of the replacement component of this utility model.

[0025] In the diagram: 1. Purifier body; 2. Replacement reminder component; 21. Purification filter; 22. Connecting strip; 23. Support strip; 24. Detection plate; 25. Pressure sensor plate; 26. Indication speaker; 27. Placement plate; 28. Deflector plate; 3. Replacement component; 31. Cover plate; 32. Positioning block; 33. Magnetic strip one; 34. Magnetic strip two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 6 As shown, this utility model provides a formaldehyde-removing air purifier, including a purifier body 1;

[0028] The surface of the purifier body 1 is equipped with a replacement reminder component 2. The replacement reminder component 2 includes a purification filter 21 set inside the purifier body 1, a connecting strip 22 symmetrically installed on the bottom surface of the purification filter 21, a support strip 23 for detecting weight, a detection plate 24, a pressure sensing plate 25, and a placement plate 27.

[0029] Two support bars 23 are symmetrically installed inside the purifier body 1. A connecting bar 22 is inserted into the support bar 23. A detection plate 24 is installed inside the support bar 23. The connecting bar 22 is attached to the upper surface of the detection plate 24. Two placement plates 27 are symmetrically installed inside the purifier body 1. A pressure sensing plate 25 is installed inside the placement plate 27. The contact of the detection plate 24 passes through the support bar 23 and is connected to the pressure sensing plate 25. This allows the user to be promptly alerted when the purification filter 21 is covered with impurities, preventing the user from failing to notice the problem and causing a decrease in the purification efficiency of the purifier body 1, thus failing to achieve the expected formaldehyde removal effect and further improving the performance of the purifier body 1.

[0030] The surface of the purifier body 1 is symmetrically equipped with reminder speakers 26, which can promptly remind users that the purification filter 21 needs to be replaced.

[0031] A guide plate 28 is installed on the surface of the placement plate 27. The guide plate 28 is cut into an upward tangential bevel. The guide plate 28 plays a guiding role, which can guide the airflow evenly through the purification filter element 21, avoid the local airflow being too large or too small, which would affect the purification effect. At the same time, it reduces the interference of airflow on the detection plate 24 and the pressure sensor plate 25, and ensures the accuracy of weight detection.

[0032] The surface of the purifier body 1 is equipped with a replacement component 3. The replacement component 3 includes a cover plate 31 set at the opening of the purifier body 1, a positioning block 32 symmetrically installed on the side of the cover plate 31 near the purification filter element 21, and magnetic strip 1 33 and magnetic strip 2 34 for stabilization.

[0033] The positioning block 32 is snapped into the inside of the support bar 23, and one end of the positioning block 32 is inserted into the slot opened on the surface of the connecting bar 22, so that the user can easily and quickly replace the purification filter 21 after hearing the prompt sound, which greatly improves the performance of the purifier body 1.

[0034] Two magnetic strips 33 are symmetrically installed on the side of the cover plate 31 near the main body 1 of the purifier. Two magnetic strips 34 are respectively installed in the grooves symmetrically opened on the surface of the main body 1 of the purifier. Magnetic strip 33 is inserted into the groove and magnetically attracted to magnetic strip 34, thereby stabilizing the position of the cover plate 31. The magnetic force of magnetic strip 33 and magnetic strip 34 can meet the actual use. The specific magnetic force can be selected according to the actual situation.

[0035] Both magnetic strip 33 and magnetic strip 34 are elongated structures, which can increase the magnetic attraction area and further improve the positional stability of the cover plate 31.

[0036] The structure of the purifier body 1 and the purification filter 21 is existing technology and will not be described in detail. It is the same as the Chinese patent publication number CN218915266U, a formaldehyde particulate air purifier. For details, please refer to the published patent.

[0037] Working principle and process: After the main body 1 of the purifier is turned on, air enters the main body 1 of the purifier, and the purification filter 21 begins to remove formaldehyde and filter other impurities from the air. During the purification process, impurities gradually adhere to the purification filter 21, causing its weight to increase continuously.

[0038] The connecting strip 22 installed on the bottom surface of the purification filter element 21 transmits the weight to the detection plate 24 inside the support strip 23. The detection plate 24 senses the weight change and transmits the pressure signal to the pressure sensing plate 25 inside the placement plate 27 through a contact. The pressure sensing plate 25 monitors the pressure value in real time and transmits the data to the control system of the purifier body 1.

[0039] When the pressure value detected by the pressure sensor plate 25 reaches the preset threshold, it means that the surface of the purification filter element 21 is covered with impurities and needs to be replaced.

[0040] At this time, the control system triggers the prompt speaker 26 installed on the surface of the purifier body 1 to issue a replacement prompt to the user through sound, reminding the user to handle the purification filter 21 in time.

[0041] Throughout the purification process, the guide plate 28 on the surface of the placement plate 27 plays a guiding role. Its upward tangential cut inclined structure can guide the airflow to pass evenly through the purification filter 21, avoiding excessive or insufficient local airflow that may affect the purification effect. At the same time, it reduces the interference of airflow on the detection plate 24 and the pressure sensor plate 25, ensuring the accuracy of weight detection.

[0042] After receiving the replacement prompt, the user begins the replacement operation of the purification filter 21. Since the cover 31 is installed at the opening of the purifier body 1 by the magnetic attraction between the magnetic strip 1 33 and the magnetic strip 2 34, the user can open the cover 31 by overcoming the magnetic force between the magnetic strips.

[0043] After opening the cover plate 31, the positioning block 32, which is symmetrically installed on the side of the cover plate 31 near the purification filter element 21, separates from the support bar 23. At the same time, the positioning block 32 is pulled out from the slot opened on the surface of the connecting bar 22. At this time, the user can directly remove the purification filter element 21 from the main body 1 of the purifier to complete the disassembly of the old filter element.

[0044] When installing the new purification filter element 21, first insert the connecting strip 22 into the support strip 23 so that the connecting strip 22 fits against the upper surface of the detection plate 24. Then, cover the plate 31 and snap the positioning block 32 into the support strip 23. At the same time, insert the connecting strip 22 into the slot to play a positioning role. Finally, insert the magnetic strip 1 33 into the groove on the surface of the purifier body 1 and magnetically attract the magnetic strip 2 34 to achieve a stable installation of the cover plate 31, thus completing the entire replacement process of the purification filter element 21.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A formaldehyde-removing air purifier, comprising a purifier body (1); characterized in that The surface of the purifier body (1) is equipped with a replacement reminder component (2). The replacement reminder component (2) includes a purification filter (21) disposed inside the purifier body (1), a connecting strip (22) symmetrically installed on the bottom surface of the purification filter (21), a support strip (23) for detecting weight, a detection plate (24), a pressure sensing plate (25), and a placement plate (27). The surface of the purifier body (1) is equipped with a replacement component (3). The replacement component (3) includes a cover plate (31) disposed at the opening of the purifier body (1), a positioning block (32) symmetrically installed on the side of the cover plate (31) near the purification filter (21), and magnetic strips one (33) and two (34) for stabilization.

2. The formaldehyde management air cleaner of claim 1, wherein: Two support bars (23) are symmetrically installed inside the purifier body (1). The connecting bar (22) is inserted into the support bar (23). The detection plate (24) is installed inside the support bar (23). The connecting bar (22) is attached to the upper surface of the detection plate (24). Two placement plates (27) are symmetrically installed inside the purifier body (1). The pressure sensing plate (25) is installed inside the placement plate (27). The contact of the detection plate (24) passes through the support bar (23) and is connected to the pressure sensing plate (25).

3. The formaldehyde management air cleaner of claim 1, wherein: The main body (1) of the purifier is symmetrically equipped with a notification speaker (26).

4. The formaldehyde-removing air purifier according to claim 1, characterized in that: The surface of the placement plate (27) is equipped with a guide plate (28), and the guide plate (28) is cut into an upward tangential bevel.

5. The formaldehyde-removing air purifier according to claim 1, characterized in that: The positioning block (32) is snapped into the inside of the support bar (23), and one end of the positioning block (32) is inserted into a slot opened on the surface of the connecting bar (22).

6. The formaldehyde-removing air purifier according to claim 1, characterized in that: Two magnetic strips (33) are symmetrically installed on the side of the cover plate (31) near the purifier body (1), and two magnetic strips (34) are respectively installed in the grooves symmetrically opened on the surface of the purifier body (1). The magnetic strips (33) are inserted into the grooves and magnetically attracted to the magnetic strips (34).

7. A formaldehyde-removing air purifier according to claim 6, characterized in that: Both the magnetic strip one (33) and the magnetic strip two (34) are long strip-shaped structures.