Multi-mode household air purification device

Abstract

The utility model relates to the technical field of air purification, and particularly discloses a multi-mode household air purification device. Comprising a purifier shell, a formaldehyde concentration probe sensor fixed outside the purifier shell, a fan arranged at the top of the purifier shell, pore plates detachably mounted on three vertical side walls of the purifier shell and composite filter elements embedded in the inner side faces of the pore plates, and a display panel and a PLC are fixedly arranged on the surface of the purifier shell; the top of the purifier shell communicates with an air duct, and the fan is transversely installed in the air duct. According to the device, the formaldehyde concentration value detected by the formaldehyde concentration probe sensor is combined with the program of the PLC to correspond to the operation frequency of the fan, so that the energy consumption is reduced; and the fan is transversely arranged in the air duct, so that the negative pressure in the purifier shell is increased, the air inlet efficiency can be improved, and the air purification speed can be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air purification, specifically, relate to a multi -mode household air purification device. BACKGROUND

[0002] Air purifiers can remove suspended particulate matter in indoor air, such as dust, pollen, smoke, etc., reduce the potential threat of these substances to human health, air purifiers are particularly effective in reducing allergens in indoor air, such as dust mites, pet dander, etc., help to alleviate the allergic symptoms of family members, such as asthma, allergic rhinitis, etc., can also effectively remove harmful gases and pollutants in indoor air, such as formaldehyde, benzene, ammonia, etc. Volatile organic compounds (VOCs), these substances usually come from furniture, decoration materials and daily necessities, etc.

[0003] The current household air purifier adopts the way of fan and filter core to extract air through the filter core, and the air sent out is purified air. The existing air purifier is flat as a whole, so that the fan can only be vertically placed in the shell. The air outlet is above the shell, that is, the air flow blown by the fan will collide with the inner wall of the shell and then rise to the upper air outlet for exhaust. The airflow is not smooth, which affects the negative pressure of the fan inlet, thereby affecting the efficiency of the device in absorbing surrounding gas. When the air purifier absorbs formaldehyde, the fan works at a constant frequency. It lacks the function of automatically adjusting the wind speed according to different formaldehyde concentrations, which leads to energy saving and the purification efficiency cannot reach the optimal value, so it needs to be improved. Therefore, we propose a multi-mode household air purification device. SUMMARY

[0004] In view of the above technical problems in the related art, the utility model provides a multi-mode household air purification device, which can solve the above problems.

[0005] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0006] A multi-mode household air purification device, comprising a purifier shell, a formaldehyde concentration probe sensor fixed to the outside of the purifier shell, a fan arranged at the top of the purifier shell, a hole plate detachably mounted on three vertical side walls of the purifier shell, and a composite filter core inlaid on the inner side of the hole plate. The surface of the purifier shell is fixedly provided with a display panel and a PLC controller. The top of the purifier shell is communicated with a wind tube, and the fan is transversely installed in the wind tube.

[0007] Further, the composite filter core comprises an activated carbon honeycomb plate and a non-woven fabric layer, and the non-woven fabric layer is attached to the inner wall of the hole plate.

[0008] Further, the purification device shell top surface is provided with a concave hole around, the purification device shell top is movably provided with a top cover, the top cover bottom end is fixedly provided with a stand column around, the stand column outer side circumferential surface is fixedly provided with a rubber ring, and the top cover top end is provided with an air outlet.

[0009] Further, the number of air outlets is two, and the two air outlets are internally hingedly provided with air guide hinges.

[0010] Further, the three vertical side walls of the purification device shell are provided with square grooves for accommodating hole plates, the square grooves are internally fixedly provided with screw hole pieces for fixing the hole plates, and a plurality of heating elements are vertically installed in the square grooves.

[0011] Further, the hole plate surface is provided with a plurality of flow guide holes, and the hole plate inner wall two sides are integrally formed with L-shaped clamping strips for installing composite filter elements.

[0012] Further, the formaldehyde concentration probe sensor is externally provided with a protective cover, and the protective cover surface is provided with an air inlet hole.

[0013] The beneficial effects of the utility model are as follows: the formaldehyde concentration value detected by the formaldehyde concentration probe sensor of the device is combined with the program of the PLC controller, the corresponding fan operation frequency, the higher the formaldehyde concentration, the faster the fan operation, the faster the purification efficiency, the lower the formaldehyde concentration, the lower the fan operation speed, and the energy consumption is saved;

[0014] The fan is horizontally installed in the air duct, the negative pressure in the purification device shell is improved, the air inlet efficiency is increased, and the air purification speed is improved;

[0015] The quick disassembly and assembly function of the top cover facilitates the cleaning of the fan blades in the later period, the composite filter element is installed on the hole plate, the composite filter element can be cleaned by disassembling the hole plate, and the cleaning and maintenance work in the later period is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] The utility model will be further described in detail below according to the drawings.

[0018] Fig. 1 It is a structural schematic view of a multi-mode household air purification device.

[0019] Fig. 2 It is an explosion view of a multi-mode household air purification device.

[0020] Fig.:

[0021] 1, purifier shell; 2, PLC controller; 3, display panel; 4, formaldehyde concentration probe sensor; 401, protective cover; 5, orifice plate; 501, flow guide hole; 502, L-shaped clamping strip; 6, top cover; 601, air outlet; 7, air guide hinge; 8, composite filter element; 801, activated carbon honeycomb plate; 802, non-woven fabric layer; 9, stand; 901, rubber ring; 10, air duct; 11, recess; 12, fan; 13, heating element; 14, square groove; 15, threaded hole piece. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0023] As Figs. 1-2 shown, according to the present application, a multi-mode household air purification device is disclosed, which comprises a purifier shell 1, a formaldehyde concentration probe sensor 4 fixed to the outside of the purifier shell, a fan 12 arranged on the top of the purifier shell 1, an orifice plate 5 detachably mounted on three vertical side walls of the purifier shell 1, a composite filter element 8 inlaid on the inner side of the orifice plate 5, a display panel 3 and a PLC controller 2 fixedly arranged on the surface of the purifier shell 1, an air duct 10 communicatively mounted on the top of the purifier shell 1, the fan 12 horizontally mounted in the air duct 10, the composite filter element 8 comprising an activated carbon honeycomb plate 801 and a non-woven fabric layer 802, the non-woven fabric layer 802 being attached to the inner wall of the orifice plate 5, recesses 11 being formed around the top end surface of the purifier shell 1, a top cover 6 movably arranged on the top of the purifier shell 1, stand columns 9 fixedly arranged around the bottom end of the top cover 6, rubber rings 901 fixedly sleeved on the outer circumferential surface of the stand columns 9, and an air outlet 601 arranged on the top end of the top cover 6.

[0024] Embodiment one: the power supply of the device is powered by connecting the power line to the power supply, the fan 12 blows air upwards, causing a larger negative pressure in the inner cavity of the purifier shell 1, thereby adsorbing the surrounding air into the inner cavity of the purifier shell 1 through the hole plate 5, in the process, the air is preliminarily purified through the non-woven fabric fiber layer 802, which is used to adsorb dust, hair and other small particulate matters, and then passes through the activated carbon honeycomb plate 801, which is used to adsorb waste gas, toxic compounds, heavy metals, bacteria and viruses in the gas, and is suitable for places where formaldehyde is adsorbed. At the same time, the micropores of the activated carbon honeycomb plate can adsorb a proper amount of moisture in the air. When the activated carbon reaches saturation after adsorbing moisture, the device needs to be moved to a ventilated position and the heating element 13 is turned on to heat the activated carbon honeycomb plate 801, so that the saturated moisture is evaporated and removed, which is conducive to the subsequent activated carbon honeycomb plate 801 to continue to adsorb moisture.

[0025] The formaldehyde concentration probe sensor 4 is used to monitor the formaldehyde concentration in the room. The formaldehyde concentration probe sensor 4 adopts an electrochemical sensor principle. Formaldehyde and oxygen undergo oxidation-reduction reaction on the working electrode and the counter electrode, releasing electric charge to form current. This current is proportional to the formaldehyde concentration in the air. Therefore, by measuring the size of the current, the concentration of formaldehyde can be determined. According to the room formaldehyde concentration health standard value: 0.1mg / m³, the PLC controller 2 sets the program. When the formaldehyde concentration detected by the formaldehyde concentration probe sensor 4 is above 0.2mg / m³, the speed of the fan 12 starts to 1000rpm; when the formaldehyde concentration is between 0.15~0.2mg / m³, the speed of the fan 12 is reduced to 700rpm; when the formaldehyde concentration is between 0.1~0.15mg / m³, the speed of the fan 12 is reduced to 500rpm; when the formaldehyde concentration is below 0.1mg / m³, the speed of the fan 12 is reduced to 300rpm. The speed of the fan 12 is controlled by the frequency converter, and the frequency converter is electrically connected to the PLC processor of the PLC controller 2.

[0026] The column 9 at the bottom end of the top cover 6 is in interference fit with the recess 11 through the rubber ring 901, realizing quick disassembly and assembly of the top cover 6. The top cover 6 is used to hide the fan 12, and the air guide hinge 7 is designed to adjust the air outlet direction. The quick disassembly and assembly function of the top cover 6 facilitates the cleaning of the fan blades 12 in the later stage;

[0027] The display panel 3, the PLC controller 2 and the formaldehyde concentration probe sensor 4 form a formaldehyde concentration value display system. The processor of the PLC controller 2 is used to process the electric signal of the formaldehyde concentration probe sensor 4 and convert it into a digital electric signal that can be read. The formaldehyde concentration value is displayed on the display panel 3.

[0028] In the preferred technical solution, the number of air outlets 601 is two, and the air guide hinge 7 is hingedly arranged inside each of the two air outlets 601. The air guide hinge 7 is hingedly installed inside the air outlet 601 through a damping shaft. The air guide hinge 7 can adjust the position left and right, and the air outlet direction can be adjusted.

[0029] In the preferred technical solution, the square groove 14 for accommodating the hole plate 5 is arranged on each of the three vertical side walls of the purifier shell 1. The screw hole piece 15 for fixing the hole plate 5 is fixedly arranged on the inner side of the square groove 14. The hole plate 5 is attached to the screw hole piece 15 and is screwed with the screw hole of the screw hole piece 15 to fasten the position of the hole plate 5. A plurality of heating elements 13 are vertically installed on the inner side of the square groove 14. The heating elements 13 are connected to the electric control module in the PLC controller 2. The active carbon honeycomb plate 801 heating mode is started by pressing the button on the PLC controller 2 electric control module, so as to remove the moisture of the humidity saturated active carbon honeycomb plate 801.

[0030] In the preferred technical solution, a plurality of flow guide holes 501 are arranged on the surface of the hole plate 5. The L-shaped clamping strip 502 for installing the composite filter element 8 is integrally formed on both sides of the inner wall of the hole plate 5. The thickness of the composite filter element 8 is consistent with the clamping thickness of the L-shaped clamping strip 502, so that the composite filter element 8 can be easily installed on the hole plate 5. The composite filter element 8 can be cleaned by disassembling the hole plate 5.

[0031] In the preferred technical solution, the formaldehyde concentration probe sensor 4 is externally sleeved with a protective cover 401. The protective cover 401 is provided with an air inlet hole on the surface. The protective cover 401 is used to protect the formaldehyde concentration probe sensor 4.

[0032] In specific use, the fan 12 is opened to blow air upwards, a larger negative pressure is generated in the inner cavity of the purifier shell 1, so that the surrounding air is sucked into the inner cavity of the purifier shell 1 from the hole plate 5, in the process, the air is preliminarily purified by the non-woven fabric fiber layer 802 for adsorbing small particulate matters such as dust and hair, then passes through the activated carbon honeycomb plate 801 for adsorbing waste gas, toxic compounds, heavy metals, bacteria and viruses in the gas, and finally the purified air is discharged from the air outlet 601, the indoor air can be continuously purified, the formaldehyde concentration probe sensor 4 is used for monitoring the formaldehyde concentration in the room, the PLC controller 2 sets a program, according to the formaldehyde concentration value detected by the formaldehyde concentration probe sensor 4 combined with the program of the PLC controller 2, the corresponding running frequency of the fan 12, the higher the formaldehyde concentration, the faster the fan 12 runs, the faster the purification efficiency, the lower the formaldehyde concentration, the lower the running speed of the fan 12, for saving energy, the above operation process is an intelligent speed regulation purification mode, another mode is a recovery activated carbon honeycomb plate 801 dehumidification active mode, the device needs to be moved to a ventilated position, when the dehumidification active mode is started, the heating element 13 is started to heat the activated carbon honeycomb plate 801, at the same time, the fan 12 is started, so that the saturated moisture on the activated carbon honeycomb plate 801 is evaporated and removed, and the subsequent activated carbon honeycomb plate 801 can continue to adsorb moisture.

[0033] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-mode household air purifier, characterized in that, The device includes a purifier housing (1), a formaldehyde concentration probe sensor (4) fixed to the outside of the purifier housing, a fan (12) set on the top of the purifier housing (1), a perforated plate (5) detachably installed on the three vertical side walls of the purifier housing (1), and a composite filter element (8) embedded in the inner side of the perforated plate (5). A display panel (3) and a PLC controller (2) are fixedly installed on the surface of the purifier housing (1). A duct (10) is connected to the top of the purifier housing (1), and the fan (12) is horizontally installed inside the duct (10).

2. The multi-mode household air purifier according to claim 1, characterized in that, The composite filter element (8) includes an activated carbon honeycomb plate (801) and a non-woven fiber layer (802), wherein the non-woven fiber layer (802) is attached to the inner wall of the perforated plate (5).

3. The multi-mode household air purifier according to claim 1, characterized in that, The top surface of the purifier housing (1) is provided with recessed holes (11) around the top. A top cover (6) is movably provided on the top of the purifier housing (1). A column (9) is fixedly provided on the bottom of the top cover (6) around the bottom. A rubber ring (901) is fixedly fitted on the outer circumferential surface of the column (9). An air outlet (601) is provided on the top of the top cover (6).

4. A multi-mode household air purifier according to claim 3, characterized in that, There are two air outlets (601), and each of the two air outlets (601) is hinged with a guide hinge (7).

5. A multi-mode household air purifier according to claim 1, characterized in that, The purifier housing (1) has square grooves (14) on its three vertical side walls for accommodating the perforated plate (5). The inside of the square grooves (14) is fixed with screw holes (15) for fixing the perforated plate (5). Several heating elements (13) are vertically installed inside the square grooves (14).

6. A multi-mode household air purifier according to claim 1, characterized in that, The perforated plate (5) has several flow guide holes (501) on its surface, and the inner walls of the perforated plate (5) are integrally formed with L-shaped clips (502) for installing the composite filter element (8).

7. A multi-mode household air purifier according to claim 1, characterized in that, The formaldehyde concentration probe sensor (4) is covered with a protective cover (401), and the surface of the protective cover (401) is provided with an air inlet.

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