Vehicle-mounted air purification device

Abstract

The invention belongs to the technical field of air purification, and particularly relates to a vehicle-mounted air purification device which comprises an annular cover, a main shell and a bottom bin. A center base is fixedly connected into the top of the main shell. An annular fine filter screen is arranged between the central seat and the main shell; an upper supporting plate and a lower supporting plate are fixedly connected to the interior of the main shell. A rotating shaft of the motor I is connected with a fan; an ultraviolet lamp tube is fixedly connected to the interior of the irradiation cavity; the interior of the bottom bin is fixedly connected with a permeable plate; activated carbon is added to the upper side of the permeable plate; the fine filter screen is firstly used for filtering airflow to remove dust and fine particles in air, then ultraviolet rays emitted by the ultraviolet lamp tube are used for irradiating the air to decompose most formaldehyde in the air, and finally activated carbon is used for absorbing a small part of residual formaldehyde in the air. By arranging a triple treatment structure of a fine filter screen, an ultraviolet lamp tube and activated carbon, the purification effect on formaldehyde in the automobile can be enhanced, and the treatment period is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of air purification, in particular to a vehicle-mounted air purification device. Background Art

[0002] The formaldehyde pollution in cars mainly comes from various materials used in the car, such as seats, dashboards, interior decoration, etc. These materials use a lot of chemical additives and glue in the manufacturing process, which often release harmful gases such as formaldehyde. Especially when a new car is just purchased, the formaldehyde concentration in the car is high. Formaldehyde is a colorless gas, but it is highly irritating and toxic. Long-term exposure to a high concentration of formaldehyde may cause serious harm to human health, including symptoms such as headaches, dizziness, nausea, and may even increase the risk of cancer.

[0003] A patent of Chinese patent application CN222329422U discloses a vehicle-mounted formaldehyde removal device, and the key points of its technical solution are: it includes a purifier shell, an air intake fan arranged at the bottom of the purifier shell, an adsorption plate 1 and an adsorption plate 2 are arranged above the air intake fan, and a top plate is arranged above the adsorption plate 2, and a dust cleaning device is arranged on the top plate, and the dust cleaning device is used to clean dust on the top plate, and the dust cleaning device includes a slider slidably connected to the top plate, and the bottom end of the slider is connected to a collection bin for collecting dust, and a cleaning brush for cleaning dust on the top plate is arranged in the collection bin, and a mounting frame is provided at the top of the top plate, and the free end of the mounting frame is threadedly connected to a screw for fixing the top plate to the purifier shell, and the bottom of the top plate is connected to an exhaust device, and the exhaust device is used to discharge the gas in the purifier shell, so as to facilitate the replacement of adsorption plate 1 and adsorption plate 2, and at the same time facilitate the gas to be discharged from the purifier shell, so as to facilitate the cleaning and collection of dust in the mesh area of ​​the top plate.

[0004] Most existing technologies use natural ventilation to remove formaldehyde in the car, which is a time-consuming process and usually requires keeping the car doors or sunroofs open for a long time. If unattended, there is a risk of theft. In addition, the current car air purification devices can only purify formaldehyde by adsorption when in use. The absorption efficiency is low and the processing cycle is long. It is difficult to fully remove the formaldehyde emitted in the car, and the use effect is poor.

[0005] To this end, the present invention provides a vehicle-mounted air purification device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the vehicle-mounted air purification device described in the present invention comprises an annular cover, a main shell and a bottom bin;

[0008] A center seat is fixedly connected to the top of the main housing through a support sheet; an annular fine filter is arranged between the center seat and the main housing; an upper support plate and a lower support plate are fixedly connected inside the main housing; a motor 1 is fixedly connected to the upper side of the upper support plate; a fan is connected to the rotating shaft of the motor 1;

[0009] The upper support plate and the lower support plate are provided with an upper vent and a lower vent on their surfaces respectively; an irradiation cavity is formed between the upper support plate and the lower support plate; an ultraviolet lamp is fixedly connected inside the irradiation cavity;

[0010] A ventilation plate is fixedly connected to the inside of the bottom bin; activated carbon is added to the upper side of the ventilation plate; and a group of air outlets are evenly distributed at the bottom of the bottom bin.

[0011] Preferably, the top and bottom of the main shell are respectively fixedly connected to the annular cover and the bottom bin by threads.

[0012] Preferably, a photovoltaic assembly is fixedly connected to the upper side of the central seat; and an energy storage battery is arranged inside the central seat.

[0013] Preferably, a flange is provided on the outer side of the center seat; a step is provided on the inner side of the main shell at a position corresponding to the flange; an inner ring and an outer ring are fixedly connected on the inner and outer sides of the fine filter respectively; the inner ring and the outer ring are placed on the flange and step surfaces respectively.

[0014] Preferably, a group of balls are evenly distributed in the middle of the upper side of the fan; a group of elastic active blocks are evenly distributed on the lower side of the center seat at the corresponding positions of the balls; a group of grooves are evenly distributed on the upper side of the flange; elastic driven blocks are fixedly connected inside the grooves; the elastic active blocks and the elastic driven blocks are both designed to be hollow and connected to each other through a conduit; an elastic part is fixedly connected inside the elastic active block; and the cross-section of the fine filter is designed to be concave downward.

[0015] Preferably, a spiral separation roll is fixedly connected inside the irradiation chamber, and the ultraviolet lamp tube is located in the middle of the separation roll; the separation roll is made of transparent material; the upper air vent is located at the edge of the upper support plate; and the lower air vent is located at the center of the lower support plate.

[0016] Preferably, a catalyst coating is provided on the lower side of the upper support plate and the upper side of the lower support plate.

[0017] Preferably, a mounting tube is fixedly connected to the middle part of the lower side of the lower support plate; a group of air guide grooves are evenly distributed on the top of the mounting tube; a support ring is fixedly connected to the outer side of the bottom of the mounting tube; and a group of heating wires are evenly distributed between the support ring and the mounting tube.

[0018] Preferably, a group of through holes are evenly distributed on the bottom of the mounting tube; a second motor is fixedly connected inside the mounting tube; a rotating shaft of the second motor is connected to a capstan; a group of connecting ropes are evenly distributed between the capstan and the support ring, and the connecting ropes pass through the through holes respectively; the connecting ropes include an elastic section and a pulling section; a group of paddles are evenly distributed on the surface of the pulling section.

[0019] Preferably, a group of elastic beads are evenly distributed on the surface of the pulling section at positions corresponding to the through holes.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The vehicle-mounted air purification device described in the present invention first uses a fine filter to filter the airflow to remove dust and fine particles in the air, then uses ultraviolet rays emitted by an ultraviolet lamp to irradiate the air to decompose most of the formaldehyde in the air, and finally uses activated carbon to absorb the remaining small part of the formaldehyde. By setting a triple treatment structure of a fine filter, an ultraviolet lamp, and activated carbon, the purification effect on formaldehyde in the vehicle can be enhanced, the treatment cycle can be shortened, and the use effect of the vehicle-mounted air purification device can be improved.

[0022] 2. In the vehicle-mounted air purification device described in the present invention, during the rotation of the fan, the ball will intermittently squeeze the elastic active block, and squeeze the air inside the elastic active block into the elastic follower block through the duct, causing the elastic follower block to inflate and expand, and drive the inner ring to move upward a short distance. When the ball and the elastic active block are misaligned, the elastic member drives the elastic active block to expand and recover, the elastic follower block contracts downward, and the inner ring resets downward under the action of gravity, thereby causing the fine filter to vibrate continuously up and down. On the one hand, the impurities intercepted on the surface of the fine filter are shaken and separated to prevent a large amount of impurities from adhering and causing blockage. On the other hand, the separated impurities can be shaken along the surface of the fine filter to its concave bottom, which is convenient for the subsequent removal of the fine filter and the concentrated pouring out of the impurities, thereby improving the cleaning efficiency of the fine filter.

[0023] 3. The vehicle-mounted air purification device described in the present invention divides the interior of the irradiation chamber into a spiral flow channel by arranging a separation roll. When the airflow enters the interior of the irradiation chamber through the upper air vent, it can flow gradually from the outer edge to the center along the spiral flow channel, and finally flow out through the lower air vent, thereby extending the flow path of the air in the irradiation chamber, increasing the irradiation time of ultraviolet rays on the air, allowing the formaldehyde in the air to be fully decomposed into carbon dioxide and water, and improving the treatment efficiency of formaldehyde. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a stereogram of the present invention;

[0026] Figure 2 It is a disassembly schematic diagram of the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0028] Figure 4 It is a disassembled schematic diagram of some structures in the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the support ring in the present invention;

[0030] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0031] Figure 7 It is a structural schematic diagram of the connecting rope in the present invention;

[0032] Figure 8 is a cross-sectional view of the present invention;

[0033] Fig. 9 yes Figure 8 A partial enlarged view of point C in the middle;

[0034] Fig.10 yes Figure 8 A partial enlarged view of point D in the middle;

[0035] Fig.11 yes Fig.10 A partial enlarged view of point E in the middle.

[0036] In the figure: annular cover 1, main shell 2, bottom bin 3, support sheet 4, center seat 5, fine filter 6, upper support plate 7, lower support plate 8, motor 1 9, fan 10, upper vent 11, lower vent 12, irradiation chamber 13, UV lamp 14, air permeable plate 15, air outlet 16, photovoltaic module 17, flange 18, inner ring 19, outer ring 20, ball 21, elastic active block 22, elastic driven block 23, conduit 24, elastic member 25, separation roll 26, mounting tube 27, air guide groove 28, support ring 29, heating wire 30, through hole 31, motor 2 32, reel 33, connecting rope 34, elastic section 341, pulling section 342, paddle 35, elastic bead 36. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 11 As shown, a vehicle-mounted air purification device according to the present invention comprises an annular cover 1, a main housing 2 and a bottom bin 3;

[0039] A center seat 5 is fixedly connected to the top of the main housing 2 through a support sheet 4, and an annular air inlet is formed between the center seat 5 and the annular cover 1; an annular fine filter 6 is arranged between the center seat 5 and the main housing 2; an upper support plate 7 and a lower support plate 8 are fixedly connected inside the main housing 2; a motor 9 is fixedly connected to the upper side of the upper support plate 7; a fan 10 is connected to the rotating shaft of the motor 9;

[0040] The upper support plate 7 and the lower support plate 8 are provided with an upper vent 11 and a lower vent 12 on their surfaces, respectively; an irradiation cavity 13 is formed between the upper support plate 7 and the lower support plate 8; an ultraviolet lamp 14 is fixedly connected inside the irradiation cavity 13;

[0041] A breathable plate 15 is fixedly connected inside the bottom bin 3 ; activated carbon is added on the upper side of the breathable plate 15 ; and a group of air outlets 16 are evenly distributed at the bottom of the bottom bin 3 .

[0042] Most existing technologies use natural ventilation to remove formaldehyde in the car, which is a time-consuming process and usually requires keeping the car doors or sunroofs open for a long time. If there is no one to guard them, there is a risk of theft. In addition, the current car air purification devices can only purify formaldehyde by adsorption when in use. Their absorption efficiency is low and the processing cycle is long. It is difficult to fully remove the formaldehyde emitted in the car, and the use effect is poor.

[0043] When in use, the present invention is placed inside a vehicle, and a fan 10 is driven to rotate by a motor 9 to suck the air inside the vehicle into the main shell 2 through the annular cover 1, and then the air flows through the upper air vent 11 on the surface of the upper support plate 7 into the irradiation chamber 13, and is irradiated by the ultraviolet lamp 14, and then the air flows through the lower air vent 12 on the surface of the lower support plate 8 into the bottom bin 3, passes through the gaps in the activated carbon and the air permeable plate 15, and is discharged outward through the air outlet 16.

[0044] The present invention first uses a fine filter 6 to filter the airflow to remove dust and fine particles in the air, then uses ultraviolet rays emitted by an ultraviolet lamp 14 to irradiate the air to decompose most of the formaldehyde in the air, and finally uses activated carbon to absorb the remaining small part of the formaldehyde. By setting a triple treatment structure of a fine filter 6, an ultraviolet lamp 14, and activated carbon, the purification effect on formaldehyde in the vehicle can be enhanced, the treatment cycle can be shortened, and the use effect of the vehicle-mounted air purification device can be improved.

[0045] The top and bottom of the main housing 2 are respectively connected to the annular cover 1 and the bottom bin 3 by screw threads. Through the detachable connection, when the fine filter 6 intercepts a lot of impurities or the activated carbon reaches the end of its service life, the annular cover 1 or the bottom bin 3 can be unscrewed to clean the fine filter 6 or replace the activated carbon.

[0046] As another embodiment of the present invention, a photovoltaic module 17 is fixedly connected to the upper side of the center seat 5; an energy storage battery is arranged inside the center seat 5. The energy storage battery is used to store electrical energy, and can be charged by a charger under normal circumstances. All electrical devices inside the device are powered by the energy storage battery (including motor 1 9, ultraviolet lamp 14, and heating wire 30 and motor 2 32 described below). When the device is not in use and sunlight can irradiate the surface of the photovoltaic module 17 in the car, the energy storage battery can be charged by solar energy for subsequent use.

[0047] As another embodiment of the present invention, a flange 18 is provided on the outer side of the center seat 5; a step is provided on the inner side of the main housing 2 at a position corresponding to the flange 18; an inner ring 19 and an outer ring 20 are fixedly connected to the inner and outer sides of the fine filter 6 respectively; the inner ring 19 and the outer ring 20 are placed on the flange 18 and the step surface respectively. When installing the fine filter 6, the inner ring 19 and the outer ring 20 of the fine filter 6 are placed on the flange 18 and the step surface respectively, and then the annular cover 1 is screwed onto the main housing 2. At this time, the bottom of the annular cover 1 is located above the outer ring 20, thereby limiting the fine filter 6 and preventing the fine filter 6 from detaching outward.

[0048] A group of balls 21 are evenly distributed in the middle of the upper side of the fan 10; a group of elastic active blocks 22 are evenly distributed on the lower side of the center seat 5 at the corresponding positions of the balls 21; a group of grooves are evenly distributed on the upper side of the flange 18; elastic driven blocks 23 are fixedly connected inside the grooves; the elastic active blocks 22 and the elastic driven blocks 23 are both designed to be hollow and are connected to each other through a conduit 24; an elastic member 25 is fixedly connected inside the elastic active block 22; the cross-section of the fine filter 6 is designed to be concave downward.

[0049] During the rotation of the fan 10, the ball 21 will intermittently squeeze the elastic active block 22, and squeeze the air inside the elastic active block 22 into the elastic follower block 23 through the conduit 24, causing the elastic follower block 23 to inflate and drive the inner ring 19 to move upward a short distance. When the ball 21 and the elastic active block 22 are misaligned, the elastic member 25 drives the elastic active block 22 to expand and recover, the elastic follower block 23 contracts downward, and the inner ring 19 resets downward under the action of gravity, thereby causing the fine filter 6 to vibrate continuously up and down. On the one hand, the impurities intercepted on the surface of the fine filter 6 are shaken and separated to prevent a large amount of impurities from adhering and causing blockage. On the other hand, the separated impurities can be shaken along the surface of the fine filter 6 to its concave bottom, which is convenient for the subsequent removal of the fine filter 6 and the concentrated pouring out of the impurities, thereby improving the cleaning efficiency of the fine filter 6.

[0050] As another embodiment of the present invention, a spiral separation roll 26 is fixedly connected inside the irradiation chamber 13, and the ultraviolet lamp 14 is located in the middle of the separation roll 26; the separation roll 26 is made of transparent material; the upper vent 11 is located at the edge of the upper support plate 7; and the lower vent 12 is located at the center of the lower support plate 8. By providing the separation roll 26, the interior of the irradiation chamber 13 is divided into a spiral flow channel. When the airflow enters the irradiation chamber 13 through the upper vent 11, it can flow from the outer edge to the center along the spiral flow channel, and finally flow out through the lower vent 12, thereby extending the flow path of the air inside the irradiation chamber 13, increasing the exposure time of ultraviolet rays to the air, allowing the formaldehyde in the air to be fully decomposed into carbon dioxide and water, and improving the treatment efficiency of formaldehyde.

[0051] The lower side of the upper support plate 7 and the upper side of the lower support plate 8 are both provided with a catalyst coating, and titanium dioxide is preferably used for the catalyst coating. By providing the catalyst coating, the ultraviolet light provided by the ultraviolet lamp 14 will activate the surface of the catalyst, play a catalytic role in the formaldehyde decomposition process, and significantly increase the formaldehyde decomposition rate.

[0052] As another embodiment of the present invention, a mounting tube 27 is fixedly connected to the middle of the lower side of the lower support plate 8; a group of air guide grooves 28 are evenly distributed on the top of the mounting tube 27; a support ring 29 is fixedly connected to the outer side of the bottom of the mounting tube 27; and a group of heating wires 30 are evenly distributed between the support ring 29 and the mounting tube 27.

[0053] After the activated carbon in the bottom bin 3 has been used for a period of time, it reaches an adsorption saturation state. At this time, the device can be taken to an outdoor ventilated position, and the fan 10 is driven by the motor 9 to rotate, and the activated carbon is heated by the heating wire 30 to increase the temperature of the activated carbon, so that the adsorbed formaldehyde and other harmful gases are volatilized and released with the airflow, thereby restoring its adsorption capacity, achieving a regeneration effect, and extending the service life of the activated carbon.

[0054] It is worth noting that the number of times activated carbon can be regenerated is limited. Although the adsorption capacity of activated carbon can be restored to a certain extent by heating or other means, the adsorption effect of activated carbon may decrease after multiple regenerations and cannot be completely restored to its initial state. Therefore, after the activated carbon is regenerated several times, the device can only be maintained in continuous use by disassembling the bottom bin 3 and replacing the activated carbon.

[0055] As another embodiment of the present invention, a group of through holes 31 are evenly distributed at the bottom of the mounting tube 27; a motor 2 32 is fixedly connected inside the mounting tube 27; a reel 33 is connected to the rotating shaft of the motor 2 32; a group of connecting ropes 34 are evenly distributed between the reel 33 and the support ring 29, and the connecting ropes 34 pass through the through holes 31 respectively; the connecting rope 34 includes an elastic section 341 and a pulling section 342; the elastic section 341 can be elastically extended and retracted, and the pulling section 342 can only bend but cannot be elastically extended and retracted; the elastic section 341 is fixedly connected to the support ring 29, and the pulling section 342 is fixedly connected to the reel 33; a group of paddles 35 are evenly distributed on the surface of the pulling section 342.

[0056] During normal use of the device, the motor 2 32 can be used to drive the winch 33 to intermittently rotate forward and reverse by a certain angle, so that the pulling section 342 of the connecting rope 34 is continuously tightened and relaxed, so that the elastic section 341 of the connecting rope 34 is continuously extended and shortened, thereby driving the multiple paddles 35 to continuously reciprocate inside the bottom bin 3, stirring and disturbing the surrounding activated carbon, so that the activated carbon that has adsorbed formaldehyde and the activated carbon that has not adsorbed formaldehyde can be mixed with each other, thereby improving its uniformity of adsorption of formaldehyde and maintaining the maximum use effect of the activated carbon.

[0057] In addition, during the activated carbon regeneration process, the paddle 35 can be controlled to move continuously to stir the activated carbon, thereby improving the uniformity of heating of the activated carbon by the heating wire 30 and improving the gaps between the activated carbons, which is conducive to the release of volatilized formaldehyde through the gaps, thereby accelerating the regeneration degree and speed of the activated carbon.

[0058] A group of elastic beads 36 are evenly distributed on the surface of the pulling section 342 at the corresponding position of the through hole 31, and the diameter of the elastic beads 36 is slightly smaller than the through hole 31. By providing the elastic beads 36, during the reciprocating motion of the pulling section 342, the elastic beads 36 will produce a damping effect when they move to the through hole 31, and when the through hole 31 squeezes and shrinks the elastic beads 36, the elastic beads 36 will obtain a small acceleration effect at the moment they pass through the through hole 31, thereby prompting the movement process of the paddle 35 to produce a power accumulation pulse effect, increasing its paddle force on the activated carbon, enhancing the degree of disturbance on the activated carbon, and further improving the adsorption uniformity and regeneration efficiency of the activated carbon.

[0059] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle-mounted air purification device, characterized in that: It comprises an annular cover (1), a main shell (2) and a bottom bin (3); A center seat (5) is fixedly connected to the top of the main shell (2) via a support sheet (4); an annular fine filter (6) is provided between the center seat (5) and the main shell (2); an upper support plate (7) and a lower support plate (8) are fixedly connected inside the main shell (2); a motor (9) is fixedly connected to the upper side of the upper support plate (7); a fan (10) is connected to the rotating shaft of the motor (9); An upper vent (11) and a lower vent (12) are respectively provided on the surfaces of the upper support plate (7) and the lower support plate (8); an irradiation cavity (13) is formed between the upper support plate (7) and the lower support plate (8); an ultraviolet lamp tube (14) is fixedly connected inside the irradiation cavity (13); A ventilation plate (15) is fixedly connected to the interior of the bottom bin (3); the upper side of the ventilation plate (15) is used for adding activated carbon; and a group of air outlets (16) are evenly distributed at the bottom of the bottom bin (3).

2. The vehicle-mounted air purification device according to claim 1, characterized in that: The top and bottom of the main shell (2) are respectively fixedly connected to the annular cover (1) and the bottom bin (3) via threads.

3. The vehicle-mounted air purification device according to claim 1, characterized in that: A photovoltaic assembly (17) is fixedly connected to the upper side of the central seat (5); and an energy storage battery is arranged inside the central seat (5).

4. The vehicle-mounted air purification device according to claim 2, characterized in that: The center seat (5) is provided with a flange (18) on the outside; the main shell (2) is provided with a step on the inside at a position corresponding to the flange (18); the fine filter (6) is fixedly connected with an inner ring (19) and an outer ring (20) on the inside and outside sides respectively; the inner ring (19) and the outer ring (20) are placed on the flange (18) and the step surface respectively.

5. The vehicle-mounted air purification device according to claim 4, characterized in that: A group of balls (21) are evenly distributed in the middle of the upper side of the fan (10); a group of elastic active blocks (22) are evenly distributed on the lower side of the center seat (5) at positions corresponding to the balls (21); a group of grooves are evenly distributed on the upper side of the flange (18); elastic driven blocks (23) are fixedly connected inside the grooves; the elastic active blocks (22) and the elastic driven blocks (23) are both designed to be hollow and are connected to each other through a conduit (24); an elastic member (25) is fixedly connected inside the elastic active block (22).

6. The vehicle-mounted air purification device according to claim 1, characterized in that: A spiral separation roll (26) is fixedly connected inside the irradiation chamber (13), and the ultraviolet lamp tube (14) is located in the middle of the separation roll (26); the separation roll (26) is made of transparent material; the upper vent (11) is located at the edge of the upper support plate (7); and the lower vent (12) is located at the center of the lower support plate (8).

7. The vehicle-mounted air purification device according to claim 6, characterized in that: The lower side of the upper support plate (7) and the upper side of the lower support plate (8) are both provided with a catalyst coating.

8. The vehicle-mounted air purification device according to claim 1, characterized in that: A mounting tube (27) is fixedly connected to the middle of the lower side of the lower support plate (8); a group of air guide grooves (28) are evenly distributed on the top of the mounting tube (27); a support ring (29) is fixedly connected to the outer side of the bottom of the mounting tube (27); and a group of electric heating wires (30) are evenly distributed between the support ring (29) and the mounting tube (27).

9. The vehicle-mounted air purification device according to claim 8, characterized in that: A group of through holes (31) are evenly distributed at the bottom of the installation cylinder (27); a second motor (32) is fixedly connected inside the installation cylinder (27); a reel (33) is connected to the rotating shaft of the second motor (32); a group of connecting ropes (34) are evenly distributed between the reel (33) and the support ring (29), and the connecting ropes (34) pass through the through holes (31) respectively; the connecting ropes (34) include an elastic section (341) and a pulling section (342); a group of paddles (35) are evenly distributed on the surface of the pulling section (342).

10. The vehicle-mounted air purification device according to claim 9, characterized in that: A group of elastic beads (36) are evenly distributed on the surface of the pulling section (342) at positions corresponding to the through holes (31).

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