Indoor air purification device for removing formaldehyde

Abstract

The present application discloses an indoor air purification device for removing formaldehyde, which relates to the technical field of air purification, and comprises a housing, a first vent and a second vent are provided on the housing, and a fixing structure for fixing the housing at the air supply or return air position of the air conditioner is provided on the housing; a first air duct and a second air duct are provided in the housing, and a formaldehyde detection unit is provided on the housing, and the formaldehyde detection unit is electrically connected with a reversing mechanism, and the reversing mechanism is used to control the first vent to be connected with the first air duct or the second air duct; a purification component is provided in the first air duct, and the purification component comprises a carrier plate and a purification material composited on the carrier plate, and the carrier plate is a porous structure. The present application realizes the comprehensive purification of indoor formaldehyde, and the purification effect is good, and by directly integrating with the air supply and return air positions of the air conditioner, the space occupancy is small, the installation is convenient, and the installation and use costs are effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air purification, and in particular to an indoor air purification device for removing formaldehyde. Background Art

[0002] At present, the problem of indoor air pollution is becoming increasingly serious, especially the pollution of VOC (volatile organic compounds) such as formaldehyde. In the existing technology, independent air purifiers or fresh air systems are usually used to deal with indoor air pollution. However, although air purifiers can play a certain purification role, they are limited by their placement and their effective purification atmosphere is limited, and they cannot achieve all-round purification of indoor formaldehyde. Although the fresh air system has a good cleaning effect on indoor formaldehyde, it is bulky, requires additional space for installation, and has relatively high installation and use costs.

[0003] Therefore, there is an urgent need for an indoor air purification device with good purification effect, convenient installation and small space occupation. Summary of the invention

[0004] In view of the problems existing in the prior art, the present application provides an indoor air purification device for removing formaldehyde.

[0005] The present application provides an indoor air purification device for removing formaldehyde, which adopts the following technical solution:

[0006] An indoor air purification device for removing formaldehyde comprises a housing, wherein a first vent and a second vent are provided on the housing, and a fixing structure for fixing the housing at an air supply or return position of an air conditioner is provided on the housing; a first air duct and a second air duct are provided in the housing, and a formaldehyde detection unit is provided on the housing, and the formaldehyde detection unit is electrically connected to a reversing mechanism, and the reversing mechanism is used to control the first vent to communicate with the first air duct or the second air duct;

[0007] A purification component is arranged in the first air duct, and the purification component includes a carrier plate and a purification material composited on the carrier plate, and the carrier plate is a porous structure.

[0008] By adopting the above technical scheme, by installing the purification device at the air supply and return air positions of the air conditioner, the indoor formaldehyde concentration is detected in real time by the formaldehyde detection unit, and the connection between the first vent and the first air duct or the second air duct is automatically controlled according to the detected formaldehyde concentration. When the formaldehyde concentration exceeds the standard, the reversing mechanism connects the first vent with the first air duct equipped with the purification component, and purifies the formaldehyde in the air through the purification material on the carrier plate; the present application integrates the purification device directly with the air supply and return air positions of the air conditioner, occupies a small space, is easy to install, and effectively reduces the installation and use costs; and the present application purifies formaldehyde through the circulation process of indoor air, which can achieve comprehensive purification of indoor formaldehyde and has good purification effect; further, when the indoor formaldehyde concentration is normal, the first vent is controlled to be connected with the second air duct through the reversing mechanism to achieve normal ventilation, protect the purification component, increase the service life of the purification component, and reduce maintenance costs.

[0009] Optionally, the fixing structure includes a fixing frame, a first snap-on frame, a second snap-on frame, a snap-on block, a top support frame and a limiting member; the fixing frame is detachably arranged on the shell; the first snap-on frame is fixedly arranged on the fixing frame; the second snap-on frame is slidably arranged on the fixing frame in a direction approaching or away from the first snap-on frame; a first elastic member is arranged on the fixing frame for driving the second snap-on frame to slide in a direction away from the first snap-on frame; the snap-on blocks are fixedly arranged on the ends of the first snap-on frame and the second snap-on frame away from each other; the top support frame is slidably arranged on the fixing frame for pressing against the supply and return air positions of the air conditioner; and the limiting member is used to prevent the top support frame from sliding.

[0010] By adopting the above technical solution, by detachably setting the fixing frame on the shell, and matching the fixing structure of the corresponding structure according to the shape of the air supply and return outlet of the air conditioner, it is convenient to install the purification device at various types of air supply and return outlets of the air conditioner, and it can also be adapted to wall-mounted units, cabinet units and other air-conditioning devices, thereby improving practicality.

[0011] Optionally, the fixed frame is connected to the first vent of the shell, the top support frame is used to cover the air outlet of the air conditioner, a corrugated sleeve is arranged between the top support frame and the fixed frame, and the corrugated sleeve is respectively connected to the top support frame and the fixed frame.

[0012] Optionally, the purification material includes nano mineral crystals and birnessite-type manganese dioxide.

[0013] By adopting the above technical scheme, the continuous adsorption of formaldehyde in the air is achieved through nano-mineral crystals, and the birnessite-type manganese dioxide continuously decomposes the adsorbed formaldehyde and formaldehyde in the air. The nano-mineral crystals and birnessite-type manganese dioxide materials have the ability to catalyze at room temperature, and still have a strong catalytic decomposition effect on low-concentration formaldehyde. In addition, their physical and chemical properties are stable, and they have no toxic side effects. They can directly decompose formaldehyde into water and carbon dioxide. The decomposition process has no toxic by-products and will not produce secondary pollution. It is green, healthy, more environmentally friendly and more advanced.

[0014] Optionally, the shell is provided with an installation opening connected to the first air duct, a mounting frame is fixedly provided at the installation opening, the purification component is detachably arranged in the installation frame, and a locking assembly for fixing the installation frame is provided at the installation opening.

[0015] By adopting the above technical solution, by detachably setting the purification component in the installation frame, with the advancement of science and technology and the further development of new purification materials, the purification component can be updated, and the corresponding purification component can be assembled according to actual needs to remove other VOCs.

[0016] Optionally, the locking assembly includes an insert block, a second elastic member and a shift block, the side wall of the mounting opening is provided with a slide groove, the insert block is slidably arranged in the slide groove, the second elastic member is used to drive the insert block to slide in a direction away from the bottom wall of the slide groove, the mounting frame is provided with a plug-in groove for inserting the insert block, the side wall of the shell is provided with a long groove connected to the slide groove along the sliding direction of the insert block, the shift block is slidably arranged in the long groove and is fixedly connected to the insert block.

[0017] Optionally, there are multiple purification components, and the purification components are arranged in multiple rows. The purification components in the same row are parallel to each other, and the purification components in each row are staggered.

[0018] By adopting the above technical solution, the purification components are arranged in multiple rows, and the purification components in each row are arranged alternately, thereby improving the purification effect on formaldehyde.

[0019] Optionally, the reversing mechanism includes a windshield plate slidably disposed in the shell, and a servo cylinder for driving the windshield plate to slide, the windshield plate is used to close the first air duct or the second air duct, and the servo cylinder is electrically connected to the formaldehyde detection unit.

[0020] Optionally, the formaldehyde detection unit includes an indoor formaldehyde sensor and a controller, the indoor formaldehyde sensor is fixedly arranged on the housing, and the indoor formaldehyde sensor is electrically connected to the controller, and the controller is electrically connected to the servo cylinder.

[0021] Optionally, the formaldehyde detection unit also includes a first formaldehyde sensor and a second formaldehyde sensor, the first formaldehyde sensor and the second formaldehyde sensor are both arranged in the first air duct and located on both sides of the installation frame, the first formaldehyde sensor and the second formaldehyde sensor are both electrically connected to the controller, and the controller is electrically connected to an alarm device.

[0022] By adopting the above technical solution, by respectively arranging the first formaldehyde sensor and the second formaldehyde sensor in the first air duct and on both sides of the installation frame, when the purification component in the first air duct is working, the formaldehyde concentration difference detected by the first formaldehyde sensor and the second formaldehyde sensor is lower than a certain value, it is determined that the purification component is in a saturated state. At this time, an alarm is sounded through the alarm device, which is convenient for reminding to replace and maintain the purification component in time.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The present application adopts a combination of nano-mineral crystals and birnessite-type manganese dioxide as a purification material. The performance advantage is that the nano-mineral crystals can continuously adsorb formaldehyde in the air, and the birnessite-type manganese dioxide can continuously decompose the adsorbed formaldehyde and formaldehyde in the air, achieving a positive cycle of adsorption → decomposition, thereby improving the purification efficiency of indoor formaldehyde.

[0025] 2. This application uses birnessite-type manganese dioxide as a formaldehyde purification material. Compared with conventional purification materials, it has the ability to catalyze at room temperature and still has a strong catalytic decomposition effect on low-concentration formaldehyde.

[0026] 3. The nano-mineral crystals and birnessite-type manganese dioxide purification materials used in this application have stable physical and chemical properties in terms of adsorption and catalytic decomposition, and are non-toxic and non-side effects. Formaldehyde can be directly decomposed into water and carbon dioxide without releasing pollutants, which is green and healthy.

[0027] 4. The purification component used in this application is hidden in the air outlet, does not take up space, and is coordinated with the air outlet.

[0028] 5. The carrier plate in this application adopts a porous structure to greatly increase the contact area with the air, ensuring the purification efficiency, while having low resistance and not affecting the air supply and return effect.

[0029] 6. The purification device of the present application is installed at the air outlet of the air conditioner, and will not generate additional noise during use, which can better create a quiet and comfortable indoor space.

[0030] 7. The purification components in this application have the characteristics of long service life, and can be used continuously for 3 years or more after the first installation. At the same time, their purification efficiency is monitored by the formaldehyde detection unit, and they can be conveniently disassembled and installed through the quick-release mechanism. The purification components can be reused after cleaning without replacement.

[0031] 8. The air purification device of the present application is different from the current formaldehyde filtering device. It can match the fixed structure of the corresponding structure according to the shape of the air supply and return air outlets of the air conditioner, and is widely applicable to the supply and return air outlets of various types of air conditioners.

[0032] 9. The air purification device of the present application is installed at the supply and return air positions of the air conditioning system. When the air conditioning is running, the formaldehyde is adsorbed and decomposed during the air circulation process. No additional energy is required to drive it, the cost of use is low, and it has high economic benefits.

[0033] 10. The air purification device of the present application has a wide range of application scenarios and can achieve harmless, low-cost, and high-efficiency treatment of formaldehyde in indoor air, with high environmental and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 is a structural cross-sectional view of an embodiment of the present application;

[0036] Figure 3 It is a schematic diagram of the structure of the purification element used in the embodiment of the present application;

[0037] Figure 4 yes Figure 1 A magnified view of part A;

[0038] Figure 5 It is a structural schematic diagram used to express the installation frame in an embodiment of the present application;

[0039] Figure 6 is a structural cross-sectional view of an embodiment of the present application;

[0040] Figure 7 yes Figure 6 Magnified view of section B.

[0041] Explanation of the reference numerals: 1. Shell; 11. First vent; 12. Second vent; 13. First air duct; 14. Second air duct; 15. Wind shield; 16. Servo cylinder; 17. Mounting port; 171. Insert block; 172. Second elastic member; 173. Dial block; 174. Slide slot; 18. Long slot; 2. Mounting frame; 21. Purification member; 22. Card slot; 23. Plug slot; 3. Formaldehyde detection unit; 31. Indoor formaldehyde sensor; 32. First formaldehyde sensor; 33. Second formaldehyde sensor; 34. Controller; 35. Alarm device; 36. Radio signal transmitter; 4. Fixing frame; 41. First snap-on frame; 42. Second snap-on frame; 421. Guide rod; 422. Anti-slip block; 43. Snap-on block; 44. Top support frame; 45. Limiting member; 46. First elastic member; 47. Corrugated sleeve. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; 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 connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The present application discloses an indoor air purification device for removing formaldehyde. Figure 1 and Figure 2 , including a shell 1, on which is provided a fixing structure for fixing the shell 1 at the air supply or return position of the air conditioner, a first vent 11 and a second vent 12 are opened on the shell 1, and a first air duct 13 and a second air duct 14 are arranged in the shell 1, and the first air duct 13 and the second air duct 14 are connected to the first vent 11 and the second vent 12 at both sides respectively.

[0047] Reference Figure 2 and Figure 3 A mounting frame 2 is fixedly arranged in the first air duct 13, and a purification component 21 is fixedly arranged in the mounting frame 2. The purification component 21 includes a carrier plate and a purification material. The carrier plate is made of a metal sheet, and a plurality of adsorption holes are arranged on the carrier plate to form a honeycomb structure. The purification material is compounded on the carrier plate, and the purification material includes nano-mineral crystals and birnessite-type manganese dioxide. The nano-mineral crystals are used to continuously adsorb formaldehyde in the air, and the birnessite-type manganese dioxide continuously decomposes the adsorbed formaldehyde and formaldehyde in the air, achieving a positive cycle of adsorption → decomposition, thereby improving the purification efficiency of indoor formaldehyde. The carrier plate is designed with a porous structure, which has little effect on the normal air outlet of the air conditioner and has a better purification effect on formaldehyde.

[0048] Furthermore, compared with conventional purification materials, the purification material of the present application has the ability of catalysis at room temperature by adopting nano-mineral crystals and birnessite-type manganese dioxide, and low-concentration formaldehyde still has the characteristics of strong catalytic decomposition effect, and the nano-mineral crystals and birnessite-type manganese dioxide have stable physical and chemical properties and no toxic side effects. Formaldehyde is directly decomposed into water and carbon dioxide without releasing pollutants. It is green and healthy, will not produce secondary pollution, and is more environmentally friendly and more advanced.

[0049] In addition, since the purification component 21 first adsorbs formaldehyde in the air through nano-mineral crystals and then decomposes the adsorbed formaldehyde and formaldehyde in the air through birnessite-type manganese dioxide, formaldehyde can be purified even in the absence of ventilation, thereby improving the purification efficiency. The purification materials are nano-mineral crystals and birnessite-type manganese dioxide, so that the service life of the purification component 21 is long and it can be used continuously for 3 years or more after the first installation, and the purification component 21 can be reused after cleaning without replacement, thereby reducing waste of resources.

[0050] Reference Figure 1 and Figure 2 A reversing mechanism is provided in the shell 1 and at the first vent 11. The reversing mechanism includes a windshield 15 slidably provided in the shell 1, and a servo cylinder 16 for driving the windshield 15 to slide. The servo cylinder 16 adopts a rodless cylinder, and the servo cylinder 16 is fixed in the shell 1. The piston of the servo cylinder 16 is fixedly connected to the windshield 15. The windshield 15 is driven to slide by the rodless cylinder, and the first air duct 13 or the second air duct 14 is closed by the windshield 15, so that the first vent 11 can be controlled to be connected with the second air duct 14 or the first air duct 13.

[0051] Reference Figure 1 and Figure 2 A formaldehyde detection unit 3 is arranged on the shell 1, and the formaldehyde detection unit 3 includes an indoor formaldehyde sensor 31, a first formaldehyde sensor 32, a second formaldehyde sensor 33 and a controller 34. The indoor formaldehyde sensor 31 is fixedly arranged on the shell 1, and the first formaldehyde sensor 32 and the second formaldehyde sensor 33 are both arranged in the first air duct 13 and located on both sides of the installation frame 2, and the indoor formaldehyde sensor 31, the first formaldehyde sensor 32 and the second formaldehyde sensor 33 are all electrically connected to the controller 34, and the controller 34 is electrically connected to the servo cylinder 16; the indoor formaldehyde concentration is detected in real time by the indoor formaldehyde sensor 31, when the formaldehyde concentration exceeds the standard, the servo cylinder 16 is controlled to start by the controller 34, and the wind shield 15 is driven to slide by the servo cylinder 16, so that the second air duct 14 is closed, and the first vent 11 is connected to the first air duct 13 equipped with the purification component 21, so that the formaldehyde in the air can be purified.

[0052] Furthermore, when the indoor formaldehyde concentration is normal, the first vent 11 is controlled to communicate with the second air duct 14 through the reversing mechanism to achieve normal ventilation, protect the purification element 21, further increase the service life of the purification element 21, and reduce maintenance costs.

[0053] Reference Figure 1 and Figure 2The controller 34 is also electrically connected to an alarm device 35. The alarm device 35 uses a light alarm and is installed on the surface of the shell 1. The first formaldehyde sensor 32 and the second formaldehyde sensor 33 are respectively arranged in the first air duct 13 and on both sides of the installation frame 2. When the purification component 21 in the first air duct 13 is working, the formaldehyde concentration difference detected by the first formaldehyde sensor 32 and the second formaldehyde sensor 33 is detected. When the formaldehyde concentration difference detected by the first formaldehyde sensor 32 and the second formaldehyde sensor 33 is lower than a certain value, it is determined that the purification component 21 is in a saturated state. At this time, an alarm is issued through the alarm device 35, which is convenient for timely maintenance of the purification device.

[0054] Furthermore, the controller is also connected to a radio signal transmitter 36, which is wirelessly connected to the control system of the air conditioner, thereby realizing linkage with the air conditioner. According to the indoor air quality, the control instructions are sent to the control system of the air conditioner through infrared signals through the radio signal transmitter 36, and the air conditioner is automatically turned on and off to ensure healthy indoor air quality.

[0055] Reference Figure 1 and Figure 4 The fixing structure includes a fixing frame 4, a first buckling frame 41, a second buckling frame 42, a buckling block 43, a top support frame 44 and a limiter 45. The fixing frame 4 is sleeved on the shell 1 and fixed by bolts. The fixing frame 4 is connected to the first vent 11. The first buckling frame 41 is fixedly arranged on the fixing frame 4. The second buckling frame 42 is slidably arranged on the fixing frame 4 along the direction approaching or away from the first buckling frame 41. A plurality of guide rods 421 are fixedly arranged on the second buckling frame 42. The guide rods 421 are slidably penetrated on the fixing frame 4. An anti-dropping block 422 is fixedly arranged on the end of the guide rod 421 away from the second buckling frame 42.

[0056] Reference Figure 4 A first elastic member 46 is provided on the fixed frame 4 for driving the second buckle frame 42 to slide away from the first buckle frame 41. The first elastic member 46 includes a first compression spring. Each guide rod 421 is sleeved with a first compression spring. One end of the first compression spring abuts against the side wall of the fixed frame 4, and the other end of the first compression spring abuts against the anti-slip block 422 on the corresponding guide rod 421.

[0057] Reference Figure 4 A plurality of buckle blocks 43 are fixedly provided at the ends of the first buckle frame 41 and the second buckle frame 42 which are away from each other. The top support frame 44 is slidably provided on the fixed frame 4. The limiting member 45 includes a limiting screw, which is threadedly matched with the fixed frame 4, and is rotatably connected with the top support frame 44. The axial direction of the limiting screw is parallel to the sliding direction of the top support frame 44.

[0058] When installing the purification device, the first snap-on frame 41 is inserted into the air duct of the air supply or return air outlet of the air conditioner, and the second snap-on frame 42 is also inserted into the air duct of the air conditioner by sliding the second snap-on frame 42. At this time, the second snap-on frame 42, under the elastic force of the first compression spring, makes the first snap-on frame 41 and the second snap-on frame 42 respectively press against the side walls of the air duct of the air conditioner, and then rotates the limit screw to drive the top support frame 44 to slide, so that the top support frame 44 is covered at the air outlet of the air conditioner and presses against the side walls of the air supply and return air outlet of the air conditioner. At this time, the snap-on blocks 43 on the first snap-on frame 41 and the second snap-on frame 42 respectively press against the inner edges of the air outlet of the air conditioner under the action of the reaction force, thereby fixing the purification device at the air supply or return air position of the air conditioner.

[0059] Furthermore, the air purification device is installed at the supply and return air positions of the air-conditioning system. When the air-conditioning is running, the formaldehyde is adsorbed and decomposed during the air circulation process. No additional energy is required to drive it, the cost of use is low, and it has high economic benefits. It does not generate additional noise during use, and can better create a quiet and comfortable indoor space.

[0060] Reference Figure 1 The fixing frame 4 is fixed to the shell 1 by bolts, so that the fixing frame 4 and the shell 1 are detachably connected, making the device more widely used. When in use, the fixing structure of the corresponding structure can be matched according to the shape of the air supply and return air outlet of the air conditioner, so that the purification device can be installed at various types of air supply and return air outlets of air conditioners, and can also be adapted to wall-mounted units, cabinet units and other air-conditioning devices, effectively expanding the scope of application and improving the application value, and realizing harmless, low-cost and high-efficiency treatment of indoor air formaldehyde, with high environmental and social benefits.

[0061] Reference Figure 2 A corrugated sleeve 47 is provided between the top support frame 44 and the fixed frame 4. The corrugated sleeve 47 is connected to the top support frame 44 and the fixed frame 4 respectively. The airflow at the air supply and return air positions of the air conditioner is guided by the corrugated pipe so that the airflow can smoothly enter the shell 1.

[0062] Reference Figure 2 and Figure 5 A plurality of purification components 21 are installed in the installation frame 2, and the installation frame 2 is respectively provided with a card slot 22 for each purification component 21 to be inserted into. The purification components 21 are arranged in multiple rows. In the embodiment of the present application, the purification components 21 are arranged in two rows, and the purification components 21 in the same row are parallel to each other, and the purification components 21 in each row are staggered with each other. When the installation frame 2 is installed in the installation port 17, the first air duct 13 is connected to the installation frame 2.

[0063] Reference Figure 6 and Figure 7The housing 1 is provided with an installation opening 17 connected to the first air duct 13, the installation frame 2 is fixedly arranged at the position of the installation opening 17, and a locking assembly for fixing the installation frame 2 is arranged at the installation opening 17, the locking assembly includes an insert block 171, a second elastic member 172 and a shift block 173, a side wall of the installation opening 17 is provided with a slide groove 174, the insert block 171 is slidably arranged in the slide groove 174, and a plug-in slot 23 for inserting the insert block 171 is arranged on the installation frame 2, and a long groove 18 connected to the slide groove 174 is formed on the side wall of the housing 1 along the sliding direction of the insert block 171, the shift block 173 is slidably arranged in the long groove 18 and fixedly connected to the insert block 171, the second elastic member 172 includes a second compression spring, the second compression spring is arranged in the slide groove 174, one end of the second compression spring abuts against the bottom wall of the slide groove 174, and the other end of the second compression spring abuts against the insert block 171.

[0064] Reference Figure 7 A guiding slope is provided at one end of the plug block 171 away from the second compression spring. When the mounting frame 2 is being installed, the mounting frame 2 abuts against the guiding slope on the plug block 171, and the plug block 171 slides into the inside of the slide groove 174 through the guiding slope. At this time, the second compression spring is compressed. When the mounting frame 2 is installed, the plug block 171 corresponds to the position of the plug-in groove 23 on the mounting frame 2. At this time, the plug block 171 is inserted into the plug-in groove 23 of the mounting frame 2 under the elastic force of the second compression spring, thereby fixing the mounting frame 2.

[0065] The implementation principle of the indoor air purification device for removing formaldehyde in the embodiment of the present application is as follows: when in use, the indoor formaldehyde concentration is detected in real time by the indoor formaldehyde sensor 31, and the connection between the first vent 11 and the first air duct 13 or the second air duct 14 is automatically controlled according to the detected formaldehyde concentration. When the formaldehyde concentration exceeds the standard, the servo cylinder 16 is started by the controller 34, and the wind shield 15 is driven to slide by the servo cylinder 16 to close the second air duct 14, so that the first vent 11 is connected to the first air duct 13 equipped with the purification component 21, and the continuous adsorption of formaldehyde in the air is achieved by the nano-mineral crystals, and the birnessite-type manganese dioxide continuously decomposes the adsorbed formaldehyde and formaldehyde in the air into water and carbon dioxide, and the decomposition process has no toxic by-products and will not generate secondary pollution, thereby achieving purification of formaldehyde in the air.

[0066] The present application integrates the purification device directly with the air supply and return positions of the air conditioner, which occupies a small space and is easy to install, effectively reducing the installation and use costs; and the present application purifies formaldehyde through the circulation process of indoor air, which can achieve comprehensive purification of indoor formaldehyde with good purification effect. Furthermore, when the indoor formaldehyde concentration is normal, the first vent 11 is controlled to be connected to the second air duct 14 through the reversing mechanism to achieve normal ventilation, protect the purification component 21, increase the service life of the purification component 21, and reduce maintenance costs.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An indoor air purification device for removing formaldehyde, characterized in that: The invention comprises a shell (1), the shell (1) being provided with a first vent (11) and a second vent (12), the shell (1) being provided with a fixing structure for fixing the shell (1) at an air supply or return position of an air conditioner; the shell (1) being provided with a first air duct (13) and a second air duct (14), and the shell (1) being provided with a formaldehyde detection unit (3); The formaldehyde detection unit (3) is electrically connected to a reversing mechanism, and the reversing mechanism is used to control the first vent (11) to communicate with the first air duct (13) or the second air duct (14); A purification element (21) is arranged in the first air duct (13), the purification element (21) comprising a carrier plate and a purification material compounded on the carrier plate, the carrier plate being a porous structure, and the purification material being compounded on the carrier plate for absorbing and decomposing formaldehyde; The fixing structure comprises a fixing frame (4), a first buckling frame (41), a second buckling frame (42), a buckling block (43), a top support frame (44) and a limiting member (45); the fixing frame (4) is detachably arranged on the shell (1); the first buckling frame (41) is fixedly arranged on the fixing frame (4); the second buckling frame (42) is slidably arranged on the fixing frame (4) in a direction approaching or moving away from the first buckling frame (41); the fixing frame (4) is provided with a first elastic member (46) for driving the second buckling frame (42) to slide in a direction away from the first buckling frame (41); the buckling block (43) is fixedly arranged on one end of the first buckling frame (41) and the second buckling frame (42) that are away from each other; the top support frame (44) is slidably arranged on the fixing frame (4) for pressing against the air supply and return positions of the air conditioner; and the limiting member (45) is used to prevent the top support frame (44) from sliding; The fixing frame (4) is in communication with the first vent (11) of the shell (1); the top support frame (44) is used to cover the air outlet of the air conditioner; a corrugated sleeve (47) is provided between the top support frame (44) and the fixing frame (4); the corrugated sleeve (47) is in communication with the top support frame (44) and the fixing frame (4) respectively; The purification material comprises nano mineral crystals and birnessite-type manganese dioxide.

2. The indoor air purification device for removing formaldehyde according to claim 1, characterized in that: The housing (1) is provided with a mounting opening (17) which is in communication with the first air duct (13); a mounting frame (2) is fixedly arranged at the mounting opening (17); the purification component (21) is detachably arranged in the mounting frame (2); and a locking assembly for fixing the mounting frame (2) is arranged at the mounting opening (17).

3. The indoor air purification device for removing formaldehyde according to claim 2, characterized in that: The locking assembly comprises an insert block (171), a second elastic member (172) and a shift block (173); a side wall of the mounting opening (17) is provided with a slide groove (174); the insert block (171) is slidably arranged in the slide groove (174); the second elastic member (172) is used to drive the insert block (171) to slide in a direction away from the bottom wall of the slide groove (174); a plug-in groove (23) for inserting the insert block (171) is provided on the mounting frame (2); a side wall of the housing (1) is provided with a long groove (18) connected to the slide groove (174) along the sliding direction of the insert block (171); the shift block (173) is slidably arranged in the long groove (18) and is fixedly connected to the insert block (171).

4. The indoor air purification device for removing formaldehyde according to claim 2, characterized in that: The purification components (21) are provided in a plurality of pieces, and the plurality of purification components (21) are arranged in a plurality of rows. The purification components (21) in the same row are parallel to each other, and the purification components (21) in each row are arranged in an alternating manner.

5. The indoor air purification device for removing formaldehyde according to claim 2, characterized in that: The reversing mechanism comprises a windshield (15) slidably arranged in the housing (1), and a servo cylinder (16) for driving the windshield (15) to slide, the windshield (15) being used to close the first air duct (13) or the second air duct (14), and the servo cylinder (16) being electrically connected to the formaldehyde detection unit (3).

6. The indoor air purification device for removing formaldehyde according to claim 5, characterized in that: The formaldehyde detection unit (3) comprises an indoor formaldehyde sensor (31) and a controller (34); the indoor formaldehyde sensor (31) is fixedly arranged on the housing (1), and the indoor formaldehyde sensor (31) is electrically connected to the controller (34); and the controller (34) is electrically connected to the servo cylinder (16).

7. The indoor air purification device for removing formaldehyde according to claim 6, characterized in that: The formaldehyde detection unit (3) further comprises a first formaldehyde sensor (32) and a second formaldehyde sensor (33); the first formaldehyde sensor (32) and the second formaldehyde sensor (33) are both arranged in the first air duct (13) and located on both sides of the installation frame (2); the first formaldehyde sensor (32) and the second formaldehyde sensor (33) are both electrically connected to a controller (34); and the controller (34) is electrically connected to an alarm device (35).

Images