A vehicle-mounted air purifier

Abstract

The present invention relates to the technical field of air purifiers, and particularly relates to a vehicle-mounted air purifier. The vehicle-mounted air purifier includes: a centrifugal fan adapted to intake air along the axial direction and exhaust air along the radial direction; a filter screen surrounding the circumferential direction of the centrifugal fan and correspondingly arranged with a first arc segment of the circumferential direction of the centrifugal fan, and the filter screen is adapted to the shape of the outer peripheral surface of the centrifugal fan; an electrical box surrounding the circumferential direction of the centrifugal fan and correspondingly arranged with a second arc segment of the circumferential direction of the centrifugal fan; the first arc segment and the second arc segment jointly surround the centrifugal fan for one week. The vehicle-mounted air purifier provided by the present invention rationally arranges the positions of the centrifugal fan, the filter screen and the electrical box, makes rational use of space, and has a reasonable layout and a compact structure, so that the size of the whole machine is reduced without reducing the purification performance of the whole machine.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and particularly to a vehicle-mounted air purifier. Background Art

[0002] With the rapid development of social economy, the popularity rate of automobiles is increasing day by day. People use cars more and more frequently and the time spent in the car is gradually increasing. Therefore, the air quality in the car has gradually attracted the attention of consumers. The main gaseous pollutants in the air in the car include suspended particles, formaldehyde, benzene, bacteria, etc. If staying in this environment for a long time, the health of consumers will be seriously threatened. The vehicle-mounted air purifier is a new product designed for small cars. It is small in size, portable, light in weight and high in air purification efficiency. It is usually placed behind the seat back or on the console. However, at present, the vehicle-mounted air purifiers on the market that can remove both particulate matter and formaldehyde are relatively large in size, and when placed on the console, they block the line of sight, thus limiting the use prospects of the vehicle-mounted air purifier. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the vehicle-mounted air purifier in the prior art is relatively large in size, so as to provide a vehicle-mounted air purifier with a compact structure layout and a relatively small overall size.

[0004] To solve the above technical problem, a vehicle-mounted air purifier provided by the present invention includes:

[0005] A centrifugal fan, adapted to intake air along the axial direction and discharge air along the radial direction;

[0006] A filter screen, surrounding the circumferential direction of the centrifugal fan and correspondingly arranged relative to a first arc section of the circumferential direction of the centrifugal fan, and the filter screen is adapted to the shape of the outer peripheral surface of the centrifugal fan;

[0007] An electrical box, surrounding the circumferential direction of the centrifugal fan and correspondingly arranged relative to a second arc section of the circumferential direction of the centrifugal fan.

[0008] Optionally, the vehicle-mounted air purifier further includes: a bottom case, configured as a trough-shaped structure, and the bottom case is adapted to accommodate the centrifugal fan and the filter screen;

[0009] An air outlet is formed at a position on the side wall of the bottom case corresponding to the filter screen;

[0010] At least part of the area of the bottom case forms the electrical box.

[0011] Optionally, the vehicle-mounted air purifier further includes:

[0012] A baffle plate, connected to the bottom case and arranged on one side of the centrifugal fan away from the bottom surface of the bottom case;

[0013] A first through hole and a second through hole are formed on the baffle; the first through hole is correspondingly arranged with the air inlet end of the centrifugal fan and is adapted to introduce external air into the centrifugal fan; the second through hole matches the shape of the filter screen and is adapted to accommodate the filter screen.

[0014] Optionally, the lower edge of the first through hole is flush with the upper surface of the centrifugal fan.

[0015] Optionally, a first convex portion is formed on the baffle, and the first convex portion is adapted to cover the electrical box.

[0016] Optionally, the vehicle-mounted air purifier further includes: an upper cover plate, which is arranged on the side of the baffle away from the fan and is detachably connected to the baffle, and the upper cover plate is adapted to cover the filter screen.

[0017] Optionally, the upper cover plate includes: an outer ring portion, which is arranged as an arc-shaped structure that is recessed from the edge towards the center, is adapted to make way for the first convex portion, and is adapted to guide external air to flow towards the centrifugal fan;

[0018] an inner ring portion, which is flush with the lowest point of the outer ring portion and is adapted to be attached to the baffle;

[0019] a third through hole, which is formed through the inner side of the inner ring portion in the radial direction and is correspondingly arranged with the first through hole.

[0020] Optionally, the vehicle-mounted air purifier further includes: a suspension cover, which is arranged on the side of the upper cover plate away from the baffle and is adapted to be detachably connected to the inner ring portion of the upper cover plate, and an air inlet is arranged between the suspension cover and the upper cover plate.

[0021] Optionally, a first buckle and a screw post are arranged on the suspension cover, the suspension cover is connected to the upper cover plate through the first buckle, and the screw post is adapted to limit the height H of the air inlet together with the first buckle, where H > 0 mm.

[0022] Optionally, the height H of the air inlet is set to be between 5 mm and 25 mm.

[0023] Optionally, the height H of the air inlet is 6 mm.

[0024] Optionally, the centrifugal fan includes a scroll-less centrifugal fan.

[0025] Optionally, the vehicle-mounted air purifier further includes: a storage battery, which is arranged in the electrical box and is adapted to provide power for the operation of the vehicle-mounted air purifier when the vehicle-mounted air purifier is not connected to the USB.

[0026] The technical solution of the present invention has the following advantages:

[0027] 1. For the vehicle-mounted air purifier provided by the present invention, by setting the filter screen to be adapted to the outer peripheral surface of the centrifugal fan, and the filter screen and the electrical box jointly surround the centrifugal fan circumferentially, the positions of the centrifugal fan, the filter screen and the electrical box are reasonably arranged, and the space is reasonably utilized, so that the layout is reasonable and the structure is compact. Therefore, on the premise of not reducing the purification performance of the whole machine, the size of the whole machine in the radial direction is reduced, and the competitive advantage in similar competing products is improved.

[0028] 2. For the vehicle-mounted air purifier provided by the present invention, the structure is made compact in the height direction of the vehicle-mounted air purifier by fitting the baffle plate with the centrifugal fan. Among them, by setting the second through hole of the baffle plate to accommodate the filter screen, while limiting the filter screen, the overall height is also reduced; at the same time, by setting the first convex part to cover the electrical box, while covering the electrical box, the first surface of the baffle plate is lower than the first convex part, so as to ensure the minimization of the size of the vehicle-mounted air purifier in the height direction.

[0029] 3. For the vehicle-mounted air purifier provided by the present invention, by setting the outer ring part of the upper cover plate to be an arc-shaped structure sunken from the edge towards the center, it is suitable for making way for the first convex part. At the same time, by setting the inner ring part to be flush with the lowest point of the outer ring part and fitting it with the baffle plate, the size of the corresponding position of the inner ring part in the height direction is reduced, which is beneficial to the reduction of the size of the whole machine.

[0030] 4. For the vehicle-mounted air purifier provided by the present invention, by setting the suspension cover to be detachably connected to the inner ring part of the upper cover plate, since the relative position of the inner ring part is lower, after the suspension cover is installed, the height of the overall structure is minimized, achieving the purpose of reducing the size of the whole machine and improving the competitive advantage in similar competing products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the vehicle-mounted air purifier of the present invention;

[0033] Figure 2 It is a schematic diagram of the internal structure of the vehicle-mounted air purifier of the present invention;

[0034] Figure 3 Schematic diagram of the positional relationship between the bottom case and the baffle of the in-vehicle air purifier of the present invention;

[0035] Figure 4 Schematic diagram of the connection between the suspension cover and the upper cover plate of the in-vehicle air purifier of the present invention;

[0036] Figure 5 is Figure 4 cross-sectional view of;

[0037] Figure 6 Top view of the in-vehicle air purifier of the present invention;

[0038] Figure 7 Bottom view of the in-vehicle air purifier of the present invention;

[0039] Figure 8 Schematic diagram of the structure of the filter of the in-vehicle air purifier of the present invention;

[0040] Figure 9 Schematic diagram of the structure of the bottom case of the in-vehicle air purifier of the present invention;

[0041] Figure 10 Schematic diagram of the structure of the suspension cover of the in-vehicle air purifier of the present invention;

[0042] Figure 11 Schematic diagram of the structure of the baffle of the in-vehicle air purifier of the present invention;

[0043] Figure 12 Schematic diagram of the structure of the upper cover plate of the in-vehicle air purifier of the present invention;

[0044] Figure 13 Cross-sectional view of the in-vehicle air purifier of the present invention;

[0045] Figure 14 Partial structure schematic diagram of the in-vehicle air purifier of the present invention including a baffle.

[0046] Explanation of reference numerals:

[0047] 1. Suspension cover; 101. First buckle; 102. Screw post; 2. Bottom case; 21. Air outlet; 3. Upper cover plate; 31. Outer ring part; 32. Inner ring part; 33. Third through hole; 4. USB socket; 5. Wire groove; 6. Screw hole; 7. Rubber pad hole; 8. Tie-down hole; 9. Electrical box; 10. Control board; 11. Battery; 12. Centrifugal fan; 121. First arc segment; 122. Second arc segment; 13. Filter; 14. Second buckle; 15. Baffle; 151. First through hole; 152. Second through hole; 153. First protrusion; 154. First surface; 16. Air inlet; 17. Light guide column. Detailed implementation manners

[0048] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] Combined Figures 1 - 14 As shown, the in-vehicle air purifier provided in this embodiment includes:

[0053] A centrifugal fan 12, adapted to intake air along the axial direction and discharge air along the radial direction;

[0054] A filter screen 13, surrounding the circumference of the centrifugal fan 12 and correspondingly arranged opposite to the first arc segment 121 of the circumference of the centrifugal fan 12. The filter screen 13 is adapted to the shape of the outer peripheral surface of the centrifugal fan 12;

[0055] An electrical box 9, surrounding the circumference of the centrifugal fan 12 and correspondingly arranged opposite to the second arc segment 122 of the circumference of the centrifugal fan 12.

[0056] Preferably, the first arc segment 121 and the second arc segment 122 jointly surround the centrifugal fan 12 for one week.

[0057] It should be noted that the axial direction refers to the axial direction of the centrifugal fan 12, and the radial direction refers to the radial direction of the centrifugal fan 12.

[0058] Combined with Figure 2 As shown, since the centrifugal fan 12 rotates around a fixed rotation axis and its outer peripheral surface is a circular structure, in order to match the outer peripheral surface of the centrifugal fan 12, the filter net 13 is preferably configured as an arc and is arranged to fit the outer peripheral surface of the centrifugal fan 12. The area of the filter net 13 corresponding to the centrifugal fan 12 is the first arc segment 121; similarly, the side of the electrical box 9 close to the centrifugal fan 12 is preferably also configured as an arc structure, and the area of the electrical box 9 corresponding to the centrifugal fan 12 is the second arc segment 122.

[0059] Preferably, the filter net 13 surrounds the circumferential direction of the centrifugal fan 12. Compared with the traditional positional relationship where the filter net 13 and the fan are arranged in an up-and-down structure, it can effectively reduce the height of the whole machine. At the same time, the filter net 13 is adapted to the shape of the outer peripheral surface of the centrifugal fan 12, which can minimize the waste of space in the radial direction and effectively reduce the size of the whole machine in the radial direction. That is, by reasonably setting the shape and position of the filter net 13, the purpose of reducing the size of the whole machine is achieved.

[0060] Preferably, the electrical box 9 surrounds the circumferential direction of the centrifugal fan 12, making full use of the space in the circumferential direction of the centrifugal fan 12; the electrical box 9 is correspondingly arranged with the second arc segment 122 in the circumferential direction of the centrifugal fan 12. At the same time, the filter net 13 is correspondingly arranged with the first arc segment 121 in the circumferential direction of the centrifugal fan 12. The first arc segment 121 and the second arc segment 122 jointly surround the centrifugal fan 12 for one week. Through the setting of the above positional relationship, the filter net 13 and the electrical box 9 jointly surround the circumferential direction of the centrifugal fan 12 for one week. On the basis of realizing the basic functions of filtering air and placing the electrical box, it maximally saves the installation space, effectively avoids the waste of space, and minimizes the size of the whole machine in the radial direction.

[0061] The in-vehicle air purifier provided in this embodiment realizes the reasonable arrangement of the positions of the centrifugal fan 12, the filter net 13, and the electrical box 9 by setting the filter net 13 to be adapted to the shape of the outer peripheral surface of the centrifugal fan 12 and the filter net 13 and the electrical box 9 jointly surrounding the centrifugal fan 12 for one week, making reasonable use of space, resulting in a reasonable layout and a compact structure. Thus, without reducing the purification performance of the whole machine, the size of the whole machine in the radial direction is reduced, improving the competitive advantage in similar competing products.

[0062] Preferably, the filter net 13 is a composite filter net, including a carbon cloth filter net.

[0063] When the centrifugal fan 12 is running, the filter screen 13 filters the particulate matter carried in the air, and harmful gases such as formaldehyde in the air react chemically with the active substances on the surface of the filter screen 13 and are decomposed into non-toxic and harmless gases, and finally fresh air is purified. In this way, the cycle is maintained to keep the air quality in the vehicle good.

[0064] Preferably, the filter screen 13 can be an integral structure or a split structure of two or more. When the filter screen 13 is a split structure of two or more, the whole formed by two or more filter screens 13 is arranged corresponding to the first arc section 121 and is adapted to the shape of the outer peripheral surface of the centrifugal fan 12.

[0065] Preferably, when the number of the filter screens 13 is two, the two filter screens 13 are exactly the same, are suitable for being arranged on both sides of the centrifugal fan 12, and can be replaced with each other.

[0066] Specifically, the vehicle-mounted air purifier further includes: a bottom case 2, which is configured as a trough-shaped structure, and the bottom case 2 is adapted to accommodate the centrifugal fan 12 and the filter screen 13;

[0067] An air outlet 21 is formed at a position on the side wall of the bottom case 2 corresponding to the filter screen 13;

[0068] At least part of the area of the bottom case 2 forms the electrical box 9.

[0069] Preferably, the air outlet 21 includes a grille, louvers, etc.

[0070] Preferably, a USB socket 4 is provided on the outer side of the bottom of the bottom case 2, which is adapted to be inserted into a USB to connect with an external power supply;

[0071] A wire groove 5, which is adapted to place wires, making the lines beautiful and safe;

[0072] Screw holes 6, the number of the screw holes 6 is at least 3, preferably 3, which are adapted to pass through screws, and the screws are adapted to connect the bottom case 2 and the centrifugal fan 12;

[0073] Gasket holes 7, which are adapted to install gaskets, and the gaskets are adapted to contact the plane when the vehicle-mounted purifier is placed on the plane, and are adapted to play a role in preventing wear and anti-slip;

[0074] Strap holes 8, which are adapted to pass through straps, and the straps are adapted to tie the vehicle-mounted purifier to the back side of the seat in the vehicle or other non-horizontal surface structures.

[0075] Specifically, the vehicle-mounted air purifier further includes:

[0076] The baffle 15 is connected to the bottom case 2 and is disposed on one side of the centrifugal fan 12 away from the bottom surface of the bottom case 2;

[0077] The baffle 15 is formed with a first through hole 151 and a second through hole 152; the first through hole 151 is correspondingly disposed with the air inlet end of the centrifugal fan 12 and is adapted to introduce external air into the centrifugal fan 12; the second through hole 152 is matched with the shape of the filter screen 13 and is adapted to accommodate the filter screen 13.

[0078] Preferably, the first through hole 151 is a circular hole, and its diameter is slightly smaller than the diameter of the centrifugal fan 12. The second through hole 152 is configured as an arc shape, and preferably, it is in an interference fit with the filter screen 13, so as to clamp the filter screen 13 in the second through hole 152, and when the filter screen 13 needs to be disassembled, by pulling the handle on the filter screen 13, it can be quickly removed from the second through hole 152.

[0079] Preferably, the vehicle-mounted air purifier further includes: a second buckle 14, which is adapted to connect the baffle 15 and the bottom case 2.

[0080] Preferably, the height of the filter screen 13 is higher than the distance between the baffle 15 and the bottom surface of the bottom case 2. The baffle 15 is adapted to accommodate the filter screen 13 by providing the second through hole 152, and the upper surface of the filter screen 13 is flush with the first surface 154 of the baffle 15, so as to provide sufficient installation space for the filter screen 13 while minimizing the height of the whole machine to the greatest extent.

[0081] Preferably, the filter screen 13 can be taken out through the second through hole 152, which is convenient for replacement.

[0082] Specifically, the lower edge of the first through hole 151 is flush with the upper surface of the centrifugal fan 12.

[0083] Combined with Figure 13 As shown, the first through hole 151 is correspondingly disposed with the air inlet end of the centrifugal fan 12. By setting the lower edge of the first through hole 151 to be flush with the upper surface of the centrifugal fan 12, the baffle 15 is fitted with the centrifugal fan 12, and the height of the position corresponding to the centrifugal fan 12 is minimized to the greatest extent, which is beneficial to reducing the size of the whole machine in the height direction.

[0084] Specifically, the baffle 15 is formed with a first protrusion 153, and the first protrusion 153 is adapted to cover the electrical box 9.

[0085] Combined with Figure 13 and Figure 14As shown, the upper surface of the electrical box 9 is higher than the upper surface of the centrifugal fan 12. The baffle 15 needs to cover the electrical box 9. If the baffle 15 is set as a flat structure, there will be a certain distance between the baffle 15 and the centrifugal fan 12, wasting this part of space and being unfavorable for reducing the overall size of the machine. However, if a first convex portion 153 is formed on the baffle 15, the first convex portion 153 protrudes with respect to the first surface 154 of the baffle 15, the lowest point of the first convex portion 153 is flush with the first surface 154, the first convex portion 153 covers the electrical box 9, the first through hole 151 and the second through hole 152 are formed on the first surface 154, and the lower edge of the first through hole 151 is flush with the upper surface of the centrifugal fan 12, then the height corresponding to the first surface 154 can be compressed, which is beneficial for reducing the size of the whole machine in the height direction.

[0086] The on-vehicle air purifier provided by this embodiment realizes the structural compactness in the height direction of the on-vehicle air purifier by the baffle 15 being fitted with the centrifugal fan 12. Among them, by arranging the second through hole 152 of the baffle 15 to accommodate the filter screen 13, while realizing the limitation of the filter screen 13, the overall height is also reduced; at the same time, by arranging the first convex portion 153 to cover the electrical box 9, while realizing the covering of the electrical box 9, the first surface 154 of the baffle 15 is lower than the first convex portion 153, so as to ensure the minimization of the size of the on-vehicle air purifier in the height direction.

[0087] Specifically, the on-vehicle air purifier further includes: an upper cover plate 3, which is arranged on the side of the baffle 15 away from the fan and is detachably connected to the baffle 15, and the upper cover plate 3 is suitable for covering the filter screen 13.

[0088] Specifically, the upper cover plate 3 includes: an outer ring portion 31, which is arranged as an arc-shaped structure that is recessed from the edge towards the center, is suitable for making way for the first convex portion 153, and is suitable for guiding the external air to flow towards the centrifugal fan 12;

[0089] an inner ring portion 32, which is flush with the lowest point of the outer ring portion 31 and is suitable for being fitted with the baffle 15;

[0090] a third through hole, which is arranged through the inner side of the inner ring portion 32 in the radial direction and is correspondingly arranged with the first through hole 151.

[0091] Combined Figure 12 and Figure 14As shown, the outer ring portion 31 is provided with an arc-shaped structure that is recessed from the edge towards the center, such that the edge position of the upper cover plate 3 is high and the center position is low. The space formed by the arc-shaped structure is adapted to accommodate the first protrusion 153, that is, the outer ring portion 31 is adapted to make way for the first protrusion 153. At the same time, the inner ring portion 32 is arranged flush with the lowest point of the outer ring portion 31, thereby achieving the compression of the height of the corresponding position of the inner ring portion 32.

[0092] Preferably, one end of the upper cover plate 3 is fixedly connected to the shielding plate 15 by a buckle, and the other end is fixedly connected by a magnet.

[0093] Preferably, the outermost edge of the outer ring portion 31 of the upper cover plate 3 is flush with the upper end of the bottom case 2.

[0094] Preferably, the outer ring portion 31 guides external air to flow towards the centrifugal fan 12, enhancing the smoothness of air flow.

[0095] In the vehicle-mounted air purifier provided in this embodiment, by setting the outer ring portion 31 of the upper cover plate 3 to be an arc-shaped structure that is recessed from the edge towards the center, it is adapted to make way for the first protrusion 153. At the same time, by setting the inner ring portion 32 to be flush with the lowest point of the outer ring portion 31 and being in contact with the shielding plate 15, the size of the corresponding position of the inner ring portion 32 in the height direction is reduced, which is beneficial to reducing the overall size of the machine.

[0096] Specifically, the vehicle-mounted air purifier further includes: a suspension cover 1, which is arranged on the side of the upper cover plate 3 away from the shielding plate 15 and is adapted to be detachably connected to the inner ring portion 32 of the upper cover plate 3. An air inlet 16 is provided between the suspension cover 1 and the upper cover plate 3.

[0097] Specifically, the suspension cover 1 is provided with a first buckle 101 and a screw post 102. The suspension cover 1 is connected to the upper cover plate 3 by the first buckle 101. The screw post 102 is adapted to limit the height H of the air inlet 16 together with the first buckle 101, where H > 0 mm.

[0098] Combined Figure 4 and Figure 5 As shown, the suspension cover 1 is connected to the upper cover plate 3 through the inner ring portion 32. The radial dimension of the suspension cover 1 is smaller than the radial dimension of the upper cover plate 3. Therefore, a wind guiding structure can be formed between the suspension cover 1 and the upper cover plate 3 to smoothly introduce external air into the centrifugal fan 12. At the same time, the suspension cover 1 is connected to the inner ring portion 32 of the upper cover plate 3 at a lower position, thereby reducing the overall height and achieving the purpose of reducing the overall size of the machine.

[0099] The in-vehicle air purifier provided in this embodiment is detachably connected to the inner ring portion 32 of the upper cover plate 3 by setting a suspension cover 1. Since the inner ring portion 32 is relatively lower in position than the outer ring portion 31, after installing the suspension cover 1, the height of the overall structure is minimized, achieving the purpose of reducing the size of the whole machine and improving the competitive advantage in similar competing products.

[0100] Specifically, the height H of the air inlet 16 is set to be between 5 mm and 25 mm.

[0101] Specifically, the height H of the air inlet 16 is 6 mm.

[0102] Specifically, the centrifugal fan 12 includes a volute-less centrifugal fan 12.

[0103] Specifically, the in-vehicle air purifier further includes: a storage battery 11, which is arranged in the electrical box 9 and is adapted to provide power for the operation of the in-vehicle air purifier when the in-vehicle air purifier is not connected to the USB.

[0104] Preferably, the in-vehicle air purifier further includes: a control board 10, which is arranged in the electrical box 9 and is adapted to control the working state of the in-vehicle air purifier;

[0105] A light guide column 17, which is arranged in the electrical box 9 and is adapted to display the working state of the in-vehicle air purifier.

[0106] When the in-vehicle air purifier is in the USB connection state, it operates by being powered by an external power supply; when the USB is not connected, it operates by being powered by the storage battery 11, and the in-vehicle air purifier can perform intelligent mode adjustment according to the operating state. Therefore, the operation of the in-vehicle air purifier is not restricted by the USB charging port and can keep the air in the vehicle fresh for a long time.

[0107] Preferably, the in-vehicle air purifier can be turned on manually and different gears can also be switched manually.

[0108] Preferably, the in-vehicle air purifier can be used as a desktop air purifier.

[0109] The vehicle-mounted air purifier provided by the present embodiment adopts a structure of top air intake and side air outlet. By reasonably setting the positions of the centrifugal fan 12, the filter 13 and the electrical box 9, the size of the whole machine in the radial direction is reduced, that is, the size of the bottom shell 2 is reduced; by reasonably setting the shape and position relationship of the shielding plate 15, the upper cover plate 3, and the floating cover 1, the size of the whole machine in the axial direction is reduced, that is, the height of the whole machine is reduced, thereby achieving the reduction of the overall size. During use, it can be placed on the center console in the car, or tied to the back of the seat back, with a suitable height, which does not affect normal driving. Compared with competing products, under the condition of consistent performance, the size of the whole machine is obviously superior. The vehicle-mounted air purifier in the prior art has a structure of top air intake and side air outlet, but the position relationship between the filter 13 and the fan is an up-and-down structure, which increases the height of the whole machine; there is also a form of setting the filter 13 around, but the position relationship between the air outlet structure and the fan is an up-and-down structure, which also increases the height of the whole machine. Therefore, the vehicle-mounted air purifier provided by this embodiment has obvious competitive advantages among similar competing products.

[0110] Table 1 shows the comparison of the performance data of the vehicle air purifier provided by this embodiment and similar competing products. The vehicle air purifier provided by this embodiment has a high purification efficiency. Through the analysis of experimental data, it is found that the particle CADR of the purifier of this embodiment can reach 18m 3 / h, formaldehyde CADR can reach 12m 3 / h, the interior space of a conventional car is 3m 3 SUV type car is 5m 3 The car air purifier can circulate the air in the car once within 10-15 minutes. Compared with similar competing products, this design prototype has absolute advantages.

[0111] Table 1 Performance data survey of competing car air purifiers

[0112] Brand Size (mm) <![CDATA[Particulate matter CADR (m 3 / h)]]> <![CDATA[Formaldehyde CADR (m 3 / h)]]> Brand 1 173*55 18.7 / Brand 2 170*170*70 18 10 Brand 3 190*167*60 15 / The designed product 180*160*58 18 12

[0113] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An in-vehicle air purifier, characterized in that, Comprising: A centrifugal fan (12), adapted to intake air along the axial direction and discharge air along the radial direction; A filter screen (13), surrounding the circumferential direction of the centrifugal fan (12) and correspondingly arranged with a first arc segment (121) in the circumferential direction of the centrifugal fan (12), and the filter screen (13) is adapted to the shape of the outer peripheral surface of the centrifugal fan (12); An electrical box (9), surrounding the circumferential direction of the centrifugal fan (12) and correspondingly arranged with a second arc segment (122) in the circumferential direction of the centrifugal fan (12); A bottom shell (2), constructed as a trough-shaped structure, and the bottom shell (2) is adapted to accommodate the centrifugal fan (12) and the filter screen (13); A baffle plate (15), connected to the bottom shell (2) and arranged on one side of the centrifugal fan (12) away from the bottom surface of the bottom shell (2); A first through hole (151) and a second through hole (152) are formed on the baffle plate (15); the first through hole (151) is correspondingly arranged with the air intake end of the centrifugal fan (12) and is adapted to introduce external air into the centrifugal fan (12); the lower edge of the first through hole (151) is flush with the upper surface of the centrifugal fan (12); The second through hole (152) is matched with the shape of the filter screen (13) and is adapted to accommodate the filter screen (13); A first convex portion (153) is formed on the baffle plate (15), and the first convex portion (153) is adapted to cover the electrical box (9); Further comprising: an upper cover plate (3), arranged on one side of the baffle plate (15) away from the fan (12) and detachably connected to the baffle plate (15), and the upper cover plate (3) is adapted to cover the filter screen (13); The upper cover plate (3) includes: An outer ring portion (31), arranged as an arc-shaped structure that is recessed from the edge towards the center, adapted to make way for the first convex portion (153) and adapted to guide external air to flow towards the centrifugal fan (12); An inner ring portion (32), flush with the lowest point of the outer ring portion (31) and adapted to be fitted with the baffle plate (15).

2. The in-vehicle air purifier according to claim 1, characterized in that, An air outlet (21) is formed at a position on the side wall of the bottom shell (2) corresponding to the filter screen (13); At least part of the area of the bottom shell (2) forms the electrical box (9).

3. The in-vehicle air purifier according to claim 1, characterized in that, The upper cover plate (3) further includes: A third through hole (33), penetrating through the inner side of the inner ring portion (32) along the radial direction and correspondingly arranged with the first through hole (151).

4. The in-vehicle air purifier according to claim 1, characterized in that, Further comprising: A suspension cover (1), arranged on one side of the upper cover plate (3) away from the baffle plate (15), adapted to be detachably connected to the inner ring portion (32) of the upper cover plate (3), and an air intake port (16) is arranged between the suspension cover (1) and the upper cover plate (3).

5. The in-vehicle air purifier according to claim 4, characterized in that, The floating cover (1) is provided with a first buckle (101) and a screw post (102). The floating cover (1) is connected to the upper cover plate (3) through the first buckle (101). The screw post (102) is adapted to, together with the first buckle (101), limit the height H of the air inlet (16), where H > 0 mm.

6. The in-vehicle air purifier according to claim 5, characterized in that, The height H of the air inlet (16) is set to be between 5 mm and 25 mm.

7. The in-vehicle air purifier according to claim 6, characterized in that, The height H of the air inlet (16) is 6 mm.

8. The in-vehicle air purifier according to claim 1, characterized in that, The centrifugal fan (12) includes a volute-less centrifugal fan.

9. The in-vehicle air purifier according to any one of claims 1-8, characterized in that, Further included is: A storage battery (11), which is arranged in the electrical box (9) and is adapted to provide power for the operation of the in-vehicle air purifier when the in-vehicle air purifier is not connected to the USB.

Images