CN110553323A - Modularized indoor air purifying device - Google Patents

Abstract

The invention discloses a modularized indoor air purification device, which relates to the field of air purification and includes a body, an installation structure, a purification module, and an air supply system; The inner cavity of the body, the air inlet and the air outlet are connected; the installation structure is fixedly connected in the inner cavity of the body, and the installation structure is provided with an installation window, and the installation window is located on the cross section of the air passage between the air inlet and the air outlet; The purification module includes a formaldehyde remover and a particulate pollutant remover, and one of the formaldehyde remover and the particulate pollutant remover is installed in the installation window; the air supply system is used to make external air flow from the air inlet to the air outlet. The advantage of the present invention is that the formaldehyde remover and the particle pollutant remover are independent of each other, and formaldehyde or particle pollutant removal can be selected as required.

Description

Modular Indoor Air Purifier

technical field

The invention relates to the field of air purification, in particular to a modular indoor air purification device.

Background technique

Indoor air pollutants mainly include particulate matter and volatile chemical substances. Among them, formaldehyde released from decoration materials and furniture has attracted the most attention. In view of the serious harm of formaldehyde, removing formaldehyde from indoor air has become the first choice for new home residents. Before people move into a new room, they often need to use professional equipment to eliminate the residual formaldehyde of various decorations to the greatest extent.

Existing air purifiers mainly filter out tiny particles in the air. The patent with the authorized notification number CN205878377U discloses a formaldehyde air purifier. The formaldehyde air purifier adds a formaldehyde-removing activated carbon filter containing an adsorbed formaldehyde decomposition catalyst to the last layer of the filter layer of the purifier to filter out PM2. At the same time, it can absorb and decompose formaldehyde and purify the air.

Existing air purifiers take the removal of PM2.5 particulate matter as the first choice function, and the removal of formaldehyde is only an incidental function, so they have to use HEPA filters with higher wind pressure and smaller air volume, and in order to ensure the removal efficiency of PM2.5, only It can sacrifice the size and space of the formaldehyde removal device, resulting in low formaldehyde removal efficiency and cumulative removal amount, and cannot guarantee air quality, especially when used in a newly decorated room. This defect will cause users to significantly exceed the formaldehyde content. If only the function of removing formaldehyde is considered, and the function of removing PM2.5 particles is not considered, the specific structure and operating parameters of the air purifier are configured for the function of removing formaldehyde. When the formaldehyde release rate drops to a safe level, the formaldehyde removal function will be idle and the PM2.5 particulate matter removal function will be lost. Users will have to buy a new purifier to meet the indoor air purification requirements and increase costs; if only using HEPA filters On the basis of increasing the volume of the formaldehyde removal unit, although the total amount of formaldehyde removal can be increased, the volume of the air purifier will be larger, the structure will be complicated, and the working efficiency of the whole machine will be reduced.

Contents of the invention

The technical problem to be solved by the present invention is to provide a modular indoor air purification device that can selectively remove formaldehyde or remove particle pollutants according to needs.

The present invention solves the above-mentioned technical problems through the following technical solutions: a modular indoor air purification device, including a body (1), an installation structure (2), a purification module (3), and an air supply system (4); An air inlet (14) and an air outlet (15) are provided, and the air inlet (14) and the air outlet (15) are connected to the outside and the inner cavity of the body (1) respectively, and the air inlet (14) is connected to the air outlet (15) ; The installation structure (2) is fixedly connected in the inner cavity of the body (1), the installation structure (2) is provided with an installation window (21), and the installation window (21) is located at the air inlet (14) and the air outlet (15) On the section of the air passage between; Purification module (3) comprises formaldehyde remover (31), particle pollutant remover (32), wherein one of formaldehyde remover (31) and particle pollutant remover (32) is installed In the installation window (21); the air supply system (4) is used to make the external air flow from the air inlet (14) to the air outlet (15). The formaldehyde remover and the particle pollutant remover are independent of each other, and can choose to remove formaldehyde or remove particle pollutants according to needs; when removing formaldehyde, it avoids the influence of the high wind resistance of the HEPA filter on the working flow, and improves the formaldehyde removal efficiency; formaldehyde removal The filter and particulate pollutant remover can be used interchangeably on the same device body, which is convenient to use and reduces the purchase cost.

As an optimized technical solution, the body (1) also includes a front cover (11), an upper cover (12), a machine base (13); a front cover (11), an upper cover (12), a machine base (13 ) form a hollow housing together, the front cover (11) forms the front side of the housing, the upper cover (12) forms the top surface of the housing, and the base (13) forms the bottom surface and other sides of the housing; the air inlet (14) is located on the front cover (11), and the air outlet (15) is located on the upper cover (12). It is easy to install, and the layout of the air inlet and outlet paths is reasonable.

As an optimized technical solution, the mounting structure (2) is also provided with buckles (22), and both the formaldehyde remover (31) and the particle pollutant remover (32) are provided with a slot that matches the buckle (22) . The formaldehyde remover or particle pollutant remover is fastened and positioned through the cooperation of the buckle and the card slot, so that the installation is firm.

As an optimized technical solution, the formaldehyde remover (31) includes a first frame (311) and a formaldehyde treatment bag (312); the first frame (311) is a hollow frame; the outer circumference of the formaldehyde treatment bag (312) is connected to the first frame The inner side of (311) is fixedly connected for a week, and the formaldehyde treatment bag (312) adopts ventilated material; the formaldehyde treatment medium is housed in the formaldehyde treatment bag (312); the particle pollutant remover (32) includes the second frame (321), HEPA filter The net (322); the second frame (321) is a hollow frame; the outer circumference of the HEPA filter (322) is fixedly connected with the inner circumference of the second frame (321). The structure of the formaldehyde remover and particle pollutant remover is convenient for replacement and installation.

As an optimized technical solution, the formaldehyde treatment medium is a mixture of manganese compounds and activated carbon, and the formaldehyde treatment medium is distributed in the filling space of the formaldehyde treatment bag (312) in a granular state. The formaldehyde treatment medium can undergo physical adsorption and chemical decomposition reactions with formaldehyde, and the chemical reaction decomposes formaldehyde into water and carbon dioxide, avoiding the defects of easy saturation of physical adsorption or the escape of absorbed formaldehyde, and improving the effect of removing formaldehyde; The formaldehyde treatment medium is distributed in a granular state so that formaldehyde can be decomposed quickly.

As an optimized technical solution, a layer of composite filter screen is added on the HEPA filter screen (322), and the composite filter screen adopts activated carbon or photocatalyst material or a combination of activated carbon and photocatalyst material. The particle pollutant remover can remove a small amount of residual formaldehyde while purifying the particle pollutants, so as to keep the indoor air clean for a long time.

As an optimized technical solution, the purification module (3) also includes a primary filter (33), and the primary filter (33) is installed on the installation window ( 21), the primary filter (33) is located between the formaldehyde remover (31) or the particle pollutant remover (32) and the air inlet (14). The primary filter can remove larger impurities.

As an optimized technical solution, the air supply system (4) includes a motor (41), a wind wheel (42), and an air duct (43); the motor (41), the wind wheel (42), and the air duct (43) are all installed in the body (1) in the inner cavity; the output shaft of the motor (41) is connected to the wind wheel (42); the wind wheel (42) is located at the formaldehyde remover (31) or the particle pollutant remover (32) and the air outlet (15) between; the air duct (43) is located between the wind outlet side of the wind wheel (42) and the air outlet (15). The motor drives the wind wheel to rotate, and the external air is sucked in from the air inlet. After the air passes through the purification module, it flows out along the air duct through the air outlet, and enters the external environment again to participate in the circulation.

As an optimized technical solution, the first boss pressure hole (23), the second boss pressure hole (24), the first boss pressure hole (23) and the second boss pressure hole are also provided on the installation structure (2). The holes (24) are respectively provided with travel switches; the formaldehyde remover (31) includes a first boss (313), and the first boss (313) corresponds to the position of the first boss pressure hole (23); The remover (32) includes a second boss (323), and the second boss (323) corresponds to the position of the second boss pressure hole (24); the modular indoor air cleaning device also includes a control module (5), The travel switches in the first boss pressure hole (23) and the second boss pressure hole (24) are respectively connected to the control module (5). When the formaldehyde remover is installed in the installation window, the first boss presses the travel switch in the pressure hole of the first boss; when the particle pollutant remover is installed in the installation window, the second boss presses the second boss to press The travel switch in the hole outputs an electrical signal to the control module through the switching status of the two travel switches, which can automatically identify whether the formaldehyde remover or the particle pollutant remover is installed, thereby automatically opening the corresponding working mode.

As an optimized technical solution, an identification device is also provided on the installation structure (2); a first electronic identification is provided on the formaldehyde remover (31), a second electronic identification is provided on the particle pollutant remover (32), and the first electronic identification is provided on the formaldehyde remover (31). The positions of the electronic identification and the second electronic identification correspond to the identification device; the modular indoor air purification device also includes a control module (5), and the identification device is connected to the control module (5). By identifying whether it is the first electronic identification or the second electronic identification and outputting an electrical signal to the control module, the identification device can automatically identify whether the formaldehyde remover or the particle pollutant remover is installed, thereby automatically starting the corresponding working mode.

The advantages of the present invention are:

1. The formaldehyde remover and particle pollutant remover are independent of each other, and can choose to remove formaldehyde or remove particle pollutants according to needs; when removing formaldehyde, it avoids the influence of high wind resistance of the HEPA filter on the working flow, and improves the formaldehyde removal efficiency; The formaldehyde remover and particle pollutant remover can be used interchangeably on the same device body, which is convenient to use and reduces purchase cost.

2. The formaldehyde treatment medium can chemically react with formaldehyde to decompose formaldehyde into water and carbon dioxide, which avoids the defects of physical adsorption that is easy to be saturated or the absorbed formaldehyde escapes again, and improves the effect of removing formaldehyde; the formaldehyde treatment medium uses particles The state distribution enables formaldehyde to decompose rapidly.

3. Through the control module, it can automatically identify whether the formaldehyde remover or the particle pollutant remover is installed, so as to automatically start the corresponding working mode.

Description of drawings

Figure 1 is a schematic diagram of the installation of a formaldehyde remover and a particle pollutant remover according to Embodiment 1 of the present invention.

Fig. 2 is an exploded schematic diagram of a modularized indoor air purification device according to an embodiment of the present invention.

Fig. 3 is a schematic front view of a formaldehyde remover according to Embodiment 1 of the present invention.

Fig. 4 is a schematic front view of a particle pollutant remover according to an embodiment of the present invention.

Detailed ways

Embodiment one

As shown in FIGS. 1 to 4 , the modular indoor air purification device includes a body 1 , an installation structure 2 , a purification module 3 , an air supply system 4 , and a control module 5 .

The body 1 includes a front cover 11, an upper cover 12, a machine base 13, an air inlet 14, and an air outlet 15; the front cover 11, the upper cover 12, and the machine base 13 together form a hollow shell, which is approximately Cuboid, the front cover plate 11 forms the front side of the housing, the upper cover plate 12 forms the top surface of the housing, and the base 13 forms the bottom surface and the other three sides of the housing; the air inlet 14 is located on the front cover plate 11, and the outlet The air outlet 15 is arranged on the upper cover plate 12 , the air inlet 14 and the air outlet 15 respectively communicate with the outside and the inner cavity of the body 1 , and the air inlet 14 communicates with the air outlet 15 .

The installation structure 2 is fixedly connected in the inner cavity of the body 1, and the installation structure 2 is provided with an installation window 21, a buckle 22, a first boss pressure hole 23, and a second boss pressure hole 24; the installation window 21 is located at the air inlet 14 and the air outlet 15 on the cross-section of the air passage; several buckles 22 are respectively fixedly connected to the bottom of the installation window 21; On the upper part, travel switches are respectively arranged in the first boss pressing hole 23 and the second boss pressing hole 24 .

The purification module 3 includes a formaldehyde remover 31 , a particle pollutant remover 32 , and a primary filter 33 .

One of the formaldehyde remover 31 and the particle pollutant remover 32 is installed in the installation window 21 , and the two can be installed interchangeably, but not installed and working at the same time.

Formaldehyde remover 31 comprises first frame 311, formaldehyde processing bag 312, first boss 313; The outer circumference of the bag 312 is fixedly connected with the inner circumference of the first frame 311, and the formaldehyde treatment bag 312 is made of a ventilating material such as filter cloth; the formaldehyde treatment medium is housed in the formaldehyde treatment bag 312, and the formaldehyde treatment medium is potassium permanganate, etc. The mixture of manganese compounds and activated carbon can undergo physical adsorption and chemical decomposition reactions with formaldehyde. The chemical reaction decomposes formaldehyde into water and carbon dioxide, which improves the effect of removing formaldehyde; the formaldehyde treatment medium is evenly distributed in the formaldehyde treatment bag in a state of extremely small particles 312, the formaldehyde can be quickly decomposed; the first boss 313 is fixedly connected to the upper part of the first frame 311, and the first boss 313 corresponds to the position of the first boss pressing hole 23.

The particle pollutant remover 32 includes a second frame 321, a HEPA filter screen 322, and a second boss 323; the second frame 321 is a rectangular parallelepiped hollow frame, and the lower part of the second frame 321 is provided with a slot that cooperates with each buckle 22; The outer circumference of the HEPA filter 322 is fixedly connected to the inner circumference of the second frame 321. HEPA (High efficiency particulate airFilter) refers to a high-efficiency air filter, and the HEPA filter refers to a filter that meets the HEPA standard. The efficiency reaches 99.97%, and the removal efficiency of particles from 0.1 microns to 0.3 microns reaches 99.7%. The characteristic of the HEPA filter is that air can pass through, but fine particles cannot pass through; a layer of composite filter is attached to the HEPA filter 322. The net adopts activated carbon or photocatalyst material or the combination of activated carbon and photocatalyst material, so that the particle pollutant remover 32 can remove a small amount of residual formaldehyde while purifying particle pollutants, and keep the indoor air clean for a long time; the second boss 323 is fixedly connected to the On the upper part of the second frame 321 , the position of the second boss 323 corresponds to the position of the second boss pressing hole 24 .

Formaldehyde remover 31 and particle pollutant remover 32 are combined with the installation size of installation window 21 to be the same, that is, the size of the first frame 311 and the second frame 321 are the same, and formaldehyde remover 31 or particle pollutant remover 32 are installed on the installation window 21, the outer circumference of the first frame 311 or the second frame 321 is attached to the inner circumference of the installation window 21, and the slots of the first frame 311 or the second frame 321 are engaged with each buckle 22; the formaldehyde remover 31 When installed in the installation window 21, the first boss 313 presses the travel switch in the pressure hole 23 of the first boss; when the particle pollutant remover 32 is installed in the installation window 21, the second boss 323 presses the second The travel switch in the boss pressure hole 24.

Primary effect filter screen 33 comprises the 3rd frame 331, filter screen 332; The 3rd frame 331 is cuboid hollow frame; Large impurities; the primary effect filter screen 33 is installed in the installation window 21 together with the formaldehyde remover 31 or the particle pollutant remover 32, and the outer circumference of the third frame 331 is attached to the inner circumference of the installation window 21. 33 is located between the formaldehyde remover 31 or the particle pollutant remover 32 and the air inlet 14 .

The air supply system 4 comprises a motor 41, a wind wheel 42, and an air duct 43; the motor 41, the wind wheel 42, and the air duct 43 are all installed in the inner cavity of the body 1; the motor 41 is fixedly connected with the mounting structure 2, and the output of the motor 41 The shaft is connected to the wind wheel 42, and the motor 41 drives the wind wheel 42 to rotate; the wind wheel 42 is located between the formaldehyde remover 31 or the particle pollutant remover 32 and the air outlet 15, and the rotation of the wind wheel 42 drives the external air from the air inlet 14 Flow toward the air outlet 15 ; the air duct 43 is located between the air outlet side of the wind wheel 42 and the air outlet 15 , and the air is guided to flow toward the air outlet 15 through the air duct 43 .

The control module 5 includes a control system 51, an air quality detection device 52, and a control display panel 53; the control system 51 is fixedly connected to the top of the mounting structure 2, and the control system 51 includes a control chip and a control circuit, and control software is preset in the control chip. In the control software, operating parameters are respectively preset for the formaldehyde remover 31 and the particle pollutant remover 32, and the control chip is connected to the control circuit; the air quality detection device 52 is fixedly connected to one side of the installation structure 2, and the air quality detection device 52 includes formaldehyde Sensors, pm2.5 sensors, the probes of each sensor are connected to the outside of the body 1 from one side of the base 13, and are used to measure the concentration of formaldehyde or pm2.5 particles in the indoor air; the control display panel 53 is installed on the upper cover plate 12 The outside of the air quality detection device 52, the control display panel 53, the motor 41, and the travel switches in the first boss pressure hole 23 and the second boss pressure hole 24 are respectively connected to the control system 51.

Considering the diversity of indoor formaldehyde release sources and the complexity of formaldehyde release rules, the release amount of all release sources per unit time, the change trend of release amount, and the concentration of formaldehyde in indoor air are calculated in the control software preset in the control chip. Level and stability, cumulative purification time, cumulative total amount of formaldehyde removed and other indicators are combined to make a comprehensive judgment, which can more reliably judge whether the formaldehyde content in indoor air is safe and when to switch to the particle pollutant removal mode.

The operating mode of the modular indoor air purification device of the present invention is that the motor 41 drives the wind wheel 42 to rotate, and the air inlet 14 sucks in external air. The formaldehyde remover 31 or particle pollutant remover 32, the purer air obtained flows out along the air duct 43 through the air outlet 15, and enters the external environment again to participate in the cycle. After repeated cycles, the overall quality of the indoor air is improved. According to actual needs, the user can install and use the formaldehyde remover 31 instead of the particle pollutant remover 32 before moving into the newly decorated room, so that the removal efficiency of formaldehyde is higher. When the indoor formaldehyde content is reduced to a safe level, the formaldehyde can be removed. The remover 31 is taken out and replaced with a particulate pollutant remover 32 to be used as a particulate pollutant purifier.

When the formaldehyde remover 31 is installed in the installation window 21, the first boss 313 presses the travel switch in the pressure hole 23 of the first boss; when the particle pollutant remover 32 is installed in the installation window 21, the second boss 323 Press the travel switch in the pressure hole 24 of the second boss; output electrical signals to the control system 51 through the switch states of the two travel switches, and can identify whether the formaldehyde remover 31 or the particle pollutant remover 32 is installed, thereby automatically opening corresponding working mode.

Under the state that the formaldehyde remover 31 is installed, plug in the power plug, press the start button on the control display panel 53, the control system 51 automatically recognizes that the formaldehyde remover 31 is installed and then enters the formaldehyde removal mode; the air quality detection device 52 The formaldehyde concentration in the indoor air starts to be continuously monitored. When the formaldehyde concentration is higher than the set value, the control system 51 issues an instruction, the motor 41 starts to drive the wind wheel 42 to rotate, and the outside air is sucked in by the air inlet 14, and the air passes through the primary filter. 33 After filtering out larger impurities, it passes through the formaldehyde remover 31 under the action of wind pressure, and the formaldehyde gas contained in the air undergoes physical adsorption and chemical decomposition reactions with the formaldehyde treatment medium and is partially consumed, and the air after the concentration of formaldehyde is reduced along the The air duct 43 flows out through the air outlet 15, and enters the external environment again to participate in the circulation. After a period of time, the formaldehyde concentration in the indoor air is reduced to a safe level; When in a safe state, the control system 51 issues an instruction, the motor 41 stops working according to preset requirements or continues to run at a low speed, and the control display panel 53 continuously displays a formaldehyde content safety signal. Compared with the prior art, since the HEPA filter screen with large wind resistance is not used, the air flow and the resistance of passing through the formaldehyde remover 31 are smaller in the whole working cycle, the flow rate is larger, and the purification efficiency is higher.

After the user is convinced that the formaldehyde indicator is safe, he can open the front cover 11 of the body 1, take out the formaldehyde remover 31, replace it with the particle pollutant remover 32, and then restart the machine, the control system 51 automatically recognizes that the particle pollutant remover is installed After 32, enter the particle pollutant removal mode; the air quality detection device 52 starts to continuously monitor the PM2.5 particle concentration in the indoor air, and when the PM2.5 particle concentration is higher than the set value, the control system 51 sends an instruction, and the motor 41 starts The wind wheel 42 is driven to rotate, and the external air is sucked in from the air inlet 14. After the air passes through the primary filter 33 to filter out relatively large impurities, it passes through the particle pollutant remover 32 under the action of wind pressure, and the PM2.5 contained in the air Particles are partially filtered, and the obtained relatively pure air flows out along the air duct 43 through the air outlet 15, and enters the external environment again to participate in circulation. After a period of time, the concentration of PM2.5 particles in the indoor air is reduced to a safe level; when When the air quality detection device 52 monitors for a period of time that the concentration of PM2.5 particulate matter in the indoor air is in a safe state, the control system 51 issues an instruction, the motor 41 stops working according to the preset requirements or continues to run at a low speed, and the control display panel 53 continues Display the safety signal of PM2.5 particulate matter content.

The control system 51 sets various operation modes of the motor 41 for the air volume, wind speed and pollutant concentration values required by the two working modes. Through the automatic control of the speed of the motor 41, the removal of formaldehyde and particle pollutants can be achieved. To achieve the optimal effect, for example, the motor 41 runs at high speed in the early stage of using the formaldehyde remover 31, and the speed of the motor 41 is appropriately reduced in the later stage of using the formaldehyde remover 31, and the speed of the motor 41 is appropriately increased when the ambient temperature is high.

Users can conveniently switch the working mode of the modular indoor air purification device, avoiding repeated investment in purchasing machines. The stage of formaldehyde removal mode is the stage where indoor formaldehyde pollution is relatively serious, and people will not move in, so the problem of particle pollution is not considered at this stage, and it will not cause harm to personal safety. After changing to the particle pollutant removal mode, the indoor air The formaldehyde content in the medium has met the safety standards, and even without the formaldehyde removal function, there is no danger.

Embodiment two

The difference between this embodiment and Embodiment 1 is:

The first boss pressure hole 23 and the second boss pressure hole 24 are replaced by an identification device, the identification device is fixedly connected to one side of the installation structure 2, and the identification device is connected to the control system 51; the first boss 313, the second boss 323 Respectively replaced by the first electronic identification, the second electronic identification, the first electronic identification and the second electronic identification are respectively set on one side of the first frame 311 and one side of the second frame 321, the first electronic identification and the second electronic identification The positions of all correspond to the identification device, and the first electronic identification and the second electronic identification adopt different two-dimensional codes or barcodes respectively. By identifying whether it is the first electronic identification or the second electronic identification and outputting an electrical signal to the control module, the identification device can identify whether the formaldehyde remover 31 or the particle pollutant remover 32 is installed, thereby automatically starting the corresponding working mode.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention within.

Claims (10)

1. A modularized indoor air purification device is characterized by comprising a machine body (1), a mounting structure (2), a purification module (3) and an air supply system (4); an air inlet (14) and an air outlet (15) are arranged on the machine body (1), the air inlet (14) and the air outlet (15) are respectively communicated with the outside and an inner cavity of the machine body (1), and the air inlet (14) is communicated with the air outlet (15); the mounting structure (2) is fixedly connected in an internal cavity of the machine body (1), a mounting window (21) is arranged on the mounting structure (2), and the mounting window (21) is positioned on the section of an air channel between the air inlet (14) and the air outlet (15); the purification module (3) comprises a formaldehyde remover (31), a particulate contaminant remover (32), one of the formaldehyde remover (31) and the particulate contaminant remover (32) being installed in the installation window (21); the air supply system (4) is used for enabling outside air to flow from the air inlet (14) to the air outlet (15).

2. The modular indoor air cleaning apparatus of claim 1, wherein: the machine body (1) also comprises a front cover plate (11), an upper cover plate (12) and a machine base (13); the front cover plate (11), the upper cover plate (12) and the engine base (13) jointly form a hollow shell, the front cover plate (11) forms the front side face of the shell, the upper cover plate (12) forms the top face of the shell, and the engine base (13) forms the bottom face and other side faces of the shell; the air inlet (14) is arranged on the front cover plate (11), and the air outlet (15) is arranged on the upper cover plate (12).

3. The modular indoor air cleaning apparatus of claim 1, wherein: still be equipped with buckle (22) on mounting structure (2), all be equipped with on formaldehyde remover (31) and the particle contaminant remover (32) with buckle (22) complex draw-in groove.

4. The modular indoor air cleaning apparatus of claim 1, wherein: the formaldehyde remover (31) comprises a first frame (311) and a formaldehyde processing bag (312); the first frame (311) is a hollow frame; the periphery of the outer side of the formaldehyde treatment bag (312) is fixedly connected with the periphery of the inner side of the first frame (311), and the formaldehyde treatment bag (312) is made of a ventilating material; a formaldehyde treatment medium is filled in the formaldehyde treatment bag (312); the particle pollutant remover (32) comprises a second frame (321) and a HEPA filter screen (322); the second frame (321) is a hollow frame; the outer circumference of the HEPA filter screen (322) is fixedly connected with the inner circumference of the second frame (321).

5. The modular indoor air cleaning apparatus of claim 4, wherein: the formaldehyde treatment medium is a mixture of manganese compounds and activated carbon, and is distributed in a granular state in a filling space of the formaldehyde treatment bag (312).

6. The modular indoor air cleaning apparatus of claim 4, wherein: the HEPA filter screen (322) is added with a layer of composite filter screen which adopts active carbon or photocatalyst material or the combination of the active carbon and the photocatalyst material.

7. The modular indoor air cleaning apparatus of claim 1, wherein: the purification module (3) further comprises a primary filter screen (33), the primary filter screen (33) and the formaldehyde remover (31) or the particle pollutant remover (32) are jointly installed in the installation window (21), and the primary filter screen (33) is located between the formaldehyde remover (31) or the particle pollutant remover (32) and the air inlet (14).

8. The modular indoor air cleaning apparatus of claim 1, wherein: the air supply system (4) comprises a motor (41), a wind wheel (42) and an air duct (43); the motor (41), the wind wheel (42) and the air duct (43) are all arranged in the inner cavity of the machine body (1); the output shaft of the motor (41) is connected with a wind wheel (42); the wind wheel (42) is positioned between the formaldehyde remover (31) or the particle pollutant remover (32) and the air outlet (15); the air duct (43) is positioned between the air outlet side of the wind wheel (42) and the air outlet (15).

9. A modular indoor air cleaning apparatus as claimed in any one of claims 1 to 8, wherein: the mounting structure (2) is also provided with a first boss pressure hole (23) and a second boss pressure hole (24), and travel switches are respectively arranged in the first boss pressure hole (23) and the second boss pressure hole (24); the formaldehyde remover (31) comprises a first boss (313), and the first boss (313) corresponds to the position of the first boss pressure hole (23); the particle pollutant remover (32) comprises a second boss (323), and the second boss (323) corresponds to the position of the second boss pressure hole (24); the modularized indoor air purification device further comprises a control module (5), and travel switches in the first boss pressure hole (23) and the second boss pressure hole (24) are respectively connected with the control module (5).

10. A modular indoor air cleaning apparatus as claimed in any one of claims 1 to 8, wherein: the mounting structure (2) is also provided with an identification device; a first electronic mark is arranged on the formaldehyde remover (31), a second electronic mark is arranged on the particle pollutant remover (32), and the positions of the first electronic mark and the second electronic mark correspond to the recognition devices; the modularized indoor air purification device also comprises a control module (5), and the recognition device is connected with the control module (5).