A baffle plate and an in-vehicle air purifier

Abstract

The present invention relates to the technical field of air purification devices, and in particular to a baffle plate and a vehicle-mounted air purifier. The baffle plate comprises: a plate body; a first through hole, which is arranged through the plate body and is suitable for forming a clearance space for the air flow path; a second through hole, which is arranged through the plate body and is arranged around the outer peripheral side of the first through hole, and the second through hole is suitable for accommodating a filter; the second through hole matches the shape of the filter and is suitable for plugging and matching with the filter. The baffle plate provided by the present invention, by arranging a second through hole on the outer peripheral side surrounding the first through hole, the second through hole is suitable for accommodating a filter, and the second through hole is plugged and matched with the filter, can realize the rapid replacement of the filter by plugging and unplugging the filter, thereby improving assembly efficiency, reducing the complexity of replacing the filter, and improving user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification devices, and in particular to a shielding plate and a vehicle-mounted air purifier. Background Art

[0002] With the rapid development of social economy, the popularity of cars is increasing, people use cars more and more frequently, and the time they stay in the car is gradually increasing. Therefore, the air quality in the car has gradually attracted the attention of consumers. The main gas pollutants in the air in the car are suspended particles, formaldehyde, benzene, bacteria, etc. If consumers stay in this environment for a long time, their health will be seriously threatened. The car air purifier is a new product designed for small cars. It is small in size, easy to carry, light in weight and has high air purification efficiency. It is usually placed behind the seat back or on the center console. The baffle is an important part of the car air purifier. When the user opens the panel to replace the filter, he can see the baffle. However, the structural design of the baffle of the existing air purifier is not reasonable enough, and it is not convenient to replace the filter. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that it is inconvenient to replace the filter screen of the baffle plate of the vehicle-mounted air purifier in the prior art, thereby providing a baffle plate that can facilitate the replacement of the filter screen.

[0004] Another technical problem to be solved by the present invention is to overcome the defect of the inconvenience of replacing the filter screen of the shielding plate of the vehicle-mounted air purifier in the prior art, thereby providing a vehicle-mounted air purifier that can easily replace the filter screen.

[0005] In order to solve the above technical problems, the present invention provides a shielding plate, comprising:

[0006] Plate body;

[0007] A first through hole is provided through the plate body and is suitable for forming a clearance space for an air flow path;

[0008] A second through hole is provided through the plate body and is arranged around the outer peripheral side of the first through hole, and the second through hole is suitable for accommodating a filter screen;

[0009] The second through hole matches the shape of the filter screen and is suitable for plugging and matching with the filter screen.

[0010] Optionally, the second through hole is suitable for interference fit with the filter screen.

[0011] Optionally, the shielding plate further comprises: a guide ring extending from the circumferential edge of the first through hole toward a side away from the plate body;

[0012] The deflector ring forms an arc surface suitable for guiding air flow on one side located upstream of the air flow path;

[0013] On the side of the deflector ring located downstream of the air flow path, an anti-backflow section is extended. The anti-backflow section is suitable for preventing the air in the downstream area from flowing back to the upstream area.

[0014] Optionally, the baffle further includes: baffle support columns, which extend from the plate body between the first through hole and the second through hole toward the side away from the plate body and are suitable for supporting the baffle; the baffle support columns and the anti-backflow section are located on the same side of the plate body.

[0015] The vehicle-mounted air purifier provided by the present invention includes:

[0016] A bottom shell, configured as a trough-shaped structure;

[0017] The baffle as described above, the baffle is connected to the opening side of the bottom shell; and

[0018] A centrifugal fan, which is correspondingly arranged with the first through hole of the baffle and is suitable for guiding air to enter from the first through hole and discharge along the radial direction of the centrifugal fan;

[0019] A filter screen, which is arranged around the circumference of the centrifugal fan and is correspondingly arranged with the first arc section of the circumference of the centrifugal fan;

[0020] An electrical box, which is arranged around the circumference of the centrifugal fan and is correspondingly arranged with the second arc section of the circumference of the centrifugal fan.

[0021] Optionally, the bottom shell includes:

[0022] At least one support rib, which is arranged on the circumferential side wall of the bottom shell, and the support rib is suitable for supporting the lower surface of the baffle;

[0023] At least one buckle, which is arranged on the circumferential side wall of the bottom shell, and the buckle is suitable for clamping the upper surface of the baffle.

[0024] Optionally, the bottom shell includes: bottom shell support columns, which extend upward from the bottom surface of the bottom shell and are correspondingly arranged with the baffle support columns arranged on the baffle, and the bottom shell support columns are in contact with the baffle support columns.

[0025] Optionally, the bottom shell includes: a guide wall, which extends upward from the bottom surface of the bottom shell, the guide wall is arranged close to the outer peripheral surface of the centrifugal fan, and the guide wall is adapted to the shape of the outer peripheral surface of the centrifugal fan;

[0026] The diversion wall and at least a part of the bottom case enclose to form an electrical box;

[0027] A profiling plate is formed on the shielding plate, the profiling plate is detachably connected to the diversion wall, and the profiling plate is adapted to leave a clearance space for the connecting wires of the electrical components in the electrical box;

[0028] The profiling plate matches the outer shape of the diversion wall.

[0029] Optionally, the shielding plate includes: a raised area on the plate surface, and the raised area on the plate surface is adapted to cover the electrical box.

[0030] Optionally, the shielding plate further includes: a battery fixing part, which extends from the lower surface of the shielding plate and is arranged on one side of the shielding plate facing the electrical box; the battery fixing part is adapted to fix the storage battery placed in the electrical box; and the contact surface between the battery fixing part and the storage battery is configured to match the shape of the storage battery.

[0031] Optionally, the vehicle-mounted air purifier further includes: an upper cover plate, which is arranged on the side of the shielding plate away from the bottom case, the upper cover plate is detachably connected to the shielding plate, and the upper cover plate is adapted to cover the filter screen.

[0032] Optionally, a clamping part is arranged on the shielding plate, and the clamping part is adapted to cooperate with a corresponding clamping skirt on the upper cover plate;

[0033] One of the upper cover plate and the shielding plate is provided with a magnet, and the other is provided with an iron sheet, and the magnet and the iron sheet are arranged corresponding to each other.

[0034] Optionally, an installation part extends from the lower surface of the shielding plate, and the installation part is adapted to fix the magnet or the iron sheet;

[0035] A clearance groove is recessed at a position on the upper surface of the shielding plate corresponding to the installation part, and the clearance groove is adapted to accommodate the corresponding iron sheet or magnet on the upper cover plate.

[0036] Optionally, the installation part is arranged on the lower surface of the raised area on the plate surface and is located within the covering area of the electrical box.

[0037] Optionally, a counterbore is arranged on the shielding plate, and the counterbore is adapted to accommodate a screw and make the head of the screw flush with the upper surface of the shielding plate.

[0038] The technical solution of the present invention has the following advantages:

[0039] 1. The baffle provided by the present invention is provided with a second through hole on the outer peripheral side surrounding the first through hole. The second through hole is adapted to accommodate a filter screen, and the second through hole is in plug-in fit with the filter screen, so that the filter screen can be quickly replaced by plugging and unplugging the filter screen, improving the assembly efficiency, reducing the complexity of replacing the filter screen, and enhancing the user experience.

[0040] 2. The baffle provided by the present invention is formed by extending the circumferential edge surrounding the first through hole toward the side away from the plate body to form the diversion ring. The diversion ring forms an arc surface on one side of the upper surface of the plate body that is adapted to guide the air flow, so as to facilitate the air to enter from the first through hole, make the air flow more smoothly in the air duct, play a diversion role, improve the smoothness of the air flow, and reduce noise; the diversion ring extends on one side of the lower surface of the plate body to form a backflow prevention section, and the backflow prevention section is adapted to prevent the air in the downstream area from flowing back to the upstream area, thereby ensuring that the air flow flows along the preset path and ensuring the air output.

[0041] 3. The baffle provided by the present invention is formed by extending the plate body between the first through hole and the second through hole toward the side away from the plate body to form a baffle support column, so as to support the plate body between the first through hole and the second through hole, increase the support strength in the middle of the baffle, and effectively prevent the baffle from breaking due to pressing when replacing the filter screen.

[0042] 4. The vehicle-mounted air purifier provided by this embodiment is provided with support ribs and buckles on the bottom case to clamp the lower surface and the upper surface of the baffle, and the baffle is installed between the buckles and the support ribs for fixation. The assembly form is simple and reliable.

[0043] 5. The vehicle-mounted air purifier provided by this embodiment uses the diversion wall as a separating component between the electrical box and the fan. On the one hand, it can isolate the electrical components from the moving components, meeting the industry standards; on the other hand, it can make the diversion wall play a diversion role, thereby reducing the total noise value.

[0044] 6. The vehicle-mounted air purifier provided by this embodiment is detachably connected with the diversion wall by using a profiling plate, and the profiling plate matches the shape of the diversion wall; thus, it not only ensures the smooth routing of the connecting wire, but also can replace at least part of the area of the diversion wall with the profiling plate, effectively reducing the force of the air acting on the wall surface, thereby ensuring the noise reduction effect. Description of the Drawings

[0045] 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 the description of the specific embodiments or the prior art. Obviously, the drawings in the following description 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.

[0046] Figure 1 It is a perspective view of the in-vehicle air purifier of the present invention;

[0047] Figure 2 It is a schematic view of the in-vehicle air purifier of the present invention after removing the upper cover;

[0048] Figure 3 It is a cross-sectional schematic view of the installation state of the baffle of the in-vehicle air purifier of the present invention Figure 1 ;

[0049] Figure 4 It is a cross-sectional schematic view of the installation state of the baffle of the in-vehicle air purifier of the present invention Figure 2 ;

[0050] Figure 5 It is Figure 4 The enlarged view at A in

[0051] Figure 6 It is a cross-sectional schematic view of the installation state of the baffle of the in-vehicle air purifier of the present invention Figure 3 ;

[0052] Figure 7 It is a cross-sectional view of the in-vehicle air purifier of the present invention after removing the upper cover;

[0053] Figure 8 It is a cross-sectional view of the in-vehicle air purifier of the present invention;

[0054] Figure 9 It is a cross-sectional view of the assembly state of the upper cover and the baffle;

[0055] Figure 10 It is Figure 9 The enlarged view at B in

[0056] Figure 11 It is a front perspective view of the baffle;

[0057] Figure 12 It is a reverse perspective view of the baffle;

[0058] Figure 13 It is Figure 12 The enlarged view at C in

[0059] Figure 14 It is a top view of the in-vehicle air purifier of the present invention after removing the upper cover;

[0060] Figure 15 Side view of the baffle

[0061] Figure 16 is Figure 15 Enlarged view at position D in

[0062] Figure 17 Schematic diagram of the internal structure of the vehicle-mounted air purifier

[0063] Description of the reference numerals in the drawings:

[0064] 1. Suspension cover; 2. Bottom shell; 21. Air outlet; 22. Buckle; 23. Support rib; 24. Bottom shell support column; 121. First arc section; 122. Second arc section;

[0065] 3. Upper cover plate; 31. Magnet; 32. Iron sheet; 4. Fan;

[0066] 5. Baffle; 51. First through hole; 511. Flow guide ring; 52. Second through hole; 53. Plate surface convex area; 531. Relief groove; 532. Battery fixing part; 533. Installation part; 54. Plate body; 541. Support convex edge; 55. Profiled plate; 551. Wire passing part; 56. Baffle support column; 57. Clamping part; 58. Counterbore;

[0067] 6. Control board; 7. Storage battery; 8. Filter; 81. Filler; 82. Handle; 9. Electrical box; 91. Flow guide wall. Detailed implementation manners

[0068] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0069] 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", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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 therefore cannot be understood as a limitation of 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.

[0070] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. 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.

[0071] 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.

[0072] Embodiment 1

[0073] Combined with Figures 1 - 17 As shown, the baffle provided in this embodiment includes:

[0074] A plate body 54;

[0075] A first through hole 51, which is provided through the plate body 54 and is adapted to form a space for the air flow path.

[0076] A second through hole 52, which is provided through the plate body 54 and is arranged around the outer peripheral side of the first through hole 51. The second through hole 52 is adapted to accommodate a filter screen 8.

[0077] The second through hole 52 is matched with the shape of the filter screen 8 and is adapted to be inserted and cooperated with the filter screen 8.

[0078] The baffle provided in this embodiment is an important part of the vehicle-mounted air purifier. When the user opens the panel to replace the filter screen, the baffle can be seen. Therefore, the baffle belongs to an important secondary appearance surface. In the vehicle-mounted air purifier, the baffle plays a role in fixing structures such as the filter screen and the upper cover plate.

[0079] Preferably, the plate body 54 is configured as a plate-like structure. In this embodiment, the plate body 54 can be a circular plate-like structure.

[0080] Combined with Figure 3 As shown, the first through hole 51 is provided through the plate body 54. Preferably, in this embodiment, the first through hole 51 is adapted to be correspondingly arranged with a blower 4. The blower 4 is adapted to guide the air flow, and the first through hole 51 is adapted to form a space for the air flow path.

[0081] The second through hole 52 is provided through the plate body 54 and is disposed around the outer peripheral side of the first through hole 51. In this embodiment, the first through hole 51 is preferably configured as a circular hole. Correspondingly, the second through hole 52 is configured as an arc-shaped hole surrounding the outer peripheral side of the first through hole 51; the second through hole 52 is adapted to accommodate the filter screen 8, so that the filter screen 8 can surround the periphery of the blower 4, facilitating the filtering of the air blown out by the blower 4.

[0082] The second through hole 52 is in plug-in fit with the filter screen 8, and the filter screen 8 can be easily inserted and removed relative to the second through hole 52.

[0083] Preferably, a handle 82 is provided on the upper surface of the filter screen 8 exposed from the second through hole 52. By pulling the handle 82, the filter screen can be quickly taken out, facilitating replacement.

[0084] For the baffle provided in this embodiment, by providing the second through hole 52 around the outer peripheral side of the first through hole 51, the second through hole 52 is adapted to accommodate the filter screen 8, and the second through hole 52 is in plug-in fit with the filter screen 8, the filter screen 8 can be quickly replaced by plugging and unplugging, improving the assembly efficiency, reducing the complexity of replacing the filter screen, and improving the user experience.

[0085] Specifically, in combination with Figure 14 as shown, the second through hole 52 is adapted to be in interference fit with the filter screen 8. Preferably, a filler 81 is pasted on the upper edge of the filter screen 8. After the filter screen 8 is pasted with the filler 81, it can be in interference fit with the edge of the second through hole 52 to prevent the filter screen from shaking and air leakage. Preferably, the filler 81 can be sponge.

[0086] Specifically, in combination with Figure 9 、 Figure 11 as shown, the baffle further includes: a diversion ring 511 extending from the circumferential edge of the first through hole 51 toward the side away from the plate body 54;

[0087] The diversion ring 511 forms an arc surface adapted to guide the air flow on the side located upstream of the air flow path;

[0088] The diversion ring 511 extends on the side located downstream of the air flow path to form an anti-backflow section, and the anti-backflow section is adapted to prevent the air in the downstream area from flowing back to the upstream area.

[0089] Preferably, since the first through hole 51 is configured as a circular hole, the diversion ring 511 can be configured as an annular structure.

[0090] The baffle provided in this embodiment forms the diversion ring 511 around the circumferential edge of the first through hole 51 and extends toward the side away from the plate body 54. The diversion ring 511 forms an arc surface on one side of the upper surface of the plate body 54 that is suitable for guiding the air flow, so as to facilitate the air to enter from the first through hole 51, make the air flow more smooth in the air duct, play a role in guiding the air flow, improve the smoothness of the air flow, and reduce noise. On the side of the diversion ring 511 located on the lower surface of the plate body 54, an anti-backflow section is extended. The anti-backflow section is suitable for preventing the air in the downstream area from flowing back to the upstream area, so as to ensure that the air flow flows along the preset path and ensure the air output volume.

[0091] Preferably, the anti-backflow section maintains a preset gap from the fan, so as to further reduce the occurrence of air backflow.

[0092] Specifically, in combination with Figure 12 As shown, the baffle further includes: a baffle support column 56, which extends from the plate body 54 between the first through hole 51 and the second through hole 52 toward the side away from the plate body 54, and is suitable for supporting the baffle 5. The baffle support column 56 and the anti-backflow section are located on the same side of the plate body 54.

[0093] The baffle support column 56 is suitable for cooperating with the bottom shell support column 24 at the corresponding position on the base.

[0094] In combination with Figure 12 As shown, the width of the plate body 54 between the first through hole 51 and the second through hole 52 is small, and the structural strength is low. If there is no support, it is prone to breakage during use.

[0095] The baffle provided in this embodiment forms a baffle support column 56 by extending the plate body 54 between the first through hole 51 and the second through hole 52 toward the side away from the plate body 54, so as to be able to support the plate body 54 between the first through hole 51 and the second through hole 52, increase the support strength in the middle of the baffle, and effectively prevent the baffle from breaking due to pressing when replacing the filter screen.

[0096] Embodiment Two

[0097] In combination with Figure 1 、 Figure 2 、 Figure 8 As shown, this embodiment provides a vehicle-mounted air purifier, including:

[0098] A bottom shell 2, configured as a trough-shaped structure;

[0099] The baffle 5 as described in the above Embodiment One, the baffle 5 is connected to the opening side of the bottom shell 2; and

[0100] The blower 4 is correspondingly arranged with the first through hole 51 of the baffle 5, and is adapted to guide air to enter through the first through hole 51 and discharge along the radial direction of the blower 4;

[0101] The filter screen 8 is arranged around the circumference of the blower 4 and is correspondingly arranged with the first arc segment 121 in the circumferential direction of the blower 4;

[0102] The electrical box 9 is arranged around the circumference of the blower 4 and is correspondingly arranged with the second arc segment 122 in the circumferential direction of the blower 4.

[0103] Preferably, the blower is adapted to intake air along the axial direction and discharge air along the radial direction; it should be noted that the axial direction refers to the axial direction of the blower, and the radial direction refers to the radial direction of the blower. The blower can be a centrifugal blower.

[0104] Combined with Figure 2 As shown, since the blower 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 blower, the filter screen 8 is preferably constructed as an arc and is arranged to fit the outer peripheral surface of the blower. Preferably, the filter screen 8 is arranged around the circumference of the blower 4. Compared with the traditional position relationship where the filter screen 8 and the blower are arranged in an up-and-down structure, the overall height of the machine can be effectively reduced. At the same time, the filter screen 8 is adapted to the shape of the outer peripheral surface of the blower 4, 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 screen 8, the purpose of reducing the size of the whole machine is achieved.

[0105] Preferably, combined with Figure 17 As shown, the electrical box 9 is arranged around the circumference of the blower 4, making full use of the space in the circumferential direction of the blower 4; the filter screen 8 is preferably constructed as an arc, and the area of the filter screen 8 corresponding to the blower 4 is the first arc segment 121; similarly, the side of the electrical box 9 close to the blower 4 is preferably also constructed as an arc structure, and the area of the electrical box 9 corresponding to the blower 4 is the second arc segment 122. The filter screen 8 is correspondingly arranged with the first arc segment 121 in the circumferential direction of the blower 4. The first arc segment 121 and the second arc segment 122 jointly surround the blower 4 for one week. Through the setting of the above position relationship, the filter screen 8 and the electrical box 9 jointly surround the blower 4 for one week. On the basis of realizing the basic functions of filtering air and placing the electrical box, the installation space is saved to the greatest extent, effectively avoiding the waste of space and minimizing the size of the whole machine in the radial direction.

[0106] Preferably, the filter screen 8 is a composite filter screen, including a carbon cloth filter screen.

[0107] When the fan 4 is running, the filter screen 8 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 8 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.

[0108] Preferably, the filter screen 8 can be an integral structure or a split structure of two or more parts. When the filter screen 8 is a split structure of two or more parts, the whole formed by two or more filter screens 8 is arranged corresponding to the first arc section 121 and is adapted to the shape of the outer peripheral surface of the fan 4.

[0109] Preferably, when the number of the filter screens 8 is two, the two filter screens 8 are exactly the same, are suitable for being arranged on both sides of the fan 4, and can be replaced with each other.

[0110] Specifically, in combination with Figure 4 、 Figure 5 as shown, the bottom case 2 includes:

[0111] At least one support rib 23 is arranged on the circumferential side wall of the bottom case 2, and the support rib 23 is suitable for supporting the lower surface of the baffle 5;

[0112] At least one buckle 22 is arranged on the circumferential side wall of the bottom case 2, and the buckle 22 is suitable for clamping the upper surface of the baffle 5.

[0113] The bottom case 2 is constructed as a trough-shaped structure, and the bottom case 2 is suitable for accommodating the fan 4 and the filter screen 8;

[0114] An air outlet 21 is formed at a position on the side wall of the bottom case 2 corresponding to the filter screen 8;

[0115] At least part of the area of the bottom case 2 forms the electrical box 9.

[0116] Preferably, the air outlet 21 includes a grille, louvers, etc.

[0117] A support convex edge 541 is further formed on the lower surface of the baffle 5, and the support convex edge 541 is suitable for abutting against the support rib 23, so as to ensure the clamping firmness of the baffle 5.

[0118] For the vehicle-mounted air purifier provided in this embodiment, by arranging the support rib 23 and the buckle 22 on the bottom case 2, the lower surface and the upper surface of the baffle 5 are clamped, and the baffle is installed between the buckle and the support rib for fixation. The assembly form is simple and reliable.

[0119] Specifically, in combination with Figure 3As shown, the bottom case 2 includes: bottom case support columns 24, which extend upward from the bottom surface of the bottom case 2 and are correspondingly arranged opposite to the baffle support columns 56 provided on the baffle 5, and the bottom case support columns 24 are in contact with the baffle support columns 56.

[0120] The setting position of the bottom case support columns 24 corresponds to that of the baffle support columns 56 provided on the baffle 5. Since the baffle support columns 56 extend from the plate body 54 between the first through hole 51 and the second through hole 52 toward the side away from the plate body 54, they do not fit the circumferential side wall of the bottom case 2. Correspondingly, the bottom case support columns 24 also do not fit the circumferential side wall of the bottom case 2. The bottom case support columns 24 are in contact with the baffle support columns 56, thereby realizing the support of the baffle 5.

[0121] Specifically, in combination with Figure 6 As shown, the bottom case 2 includes: a diversion wall 91, which extends upward from the bottom surface of the bottom case 2, and the diversion wall 91 is arranged close to the outer peripheral surface of the blower 4, and the shape of the diversion wall 91 is adapted to that of the outer peripheral surface of the blower 4;

[0122] The diversion wall 91 and at least part of the area of the bottom case 2 enclose an electrical box 9;

[0123] A profiling plate 55 is formed on the baffle 5, and the profiling plate 55 is detachably connected to the diversion wall 91, and the profiling plate 55 is adapted to leave a clearance space for the connecting wires of the electrical components in the electrical box 9;

[0124] The profiling plate 55 matches the outer shape of the diversion wall 91.

[0125] Preferably, the electrical box 9 is enclosed by the diversion wall 91 and at least part of the area of the bottom case 2.

[0126] Because the overall space layout of the in-vehicle air purifier is relatively dense, the distance between the electrical box and the blower is relatively close, and the blower is in a high-speed moving state at the same time. Therefore, during the operation of the whole machine, certain low-frequency noise will be generated. In the low-frequency band, there will be a very high peak of rotational noise, resulting in poor sound quality of the whole machine, and the total noise value will also increase accordingly, greatly affecting the user experience. In this embodiment, by adjusting the outer shape of the diversion wall 91 to make it more in line with the diversion characteristics, the peak of rotational noise can be reduced. For the in-vehicle air purifier provided in this embodiment, by setting the distance between the diversion wall 91 and the outer peripheral surface of the blower 4 in a non-uniform form, the distance between the diversion wall 91 and the blower is adjusted from the conventional equal-distance form to a non-uniform form, thereby improving the air flow characteristics, reducing the rotational noise of the in-vehicle air purifier, making the sound quality of the whole machine purer, reducing the total noise value, and playing a role in reducing noise.

[0127] Preferably, the arc of the flow guide wall 91 is similar to a spiral line relative to the arc of the fan, which can well improve the air flow characteristics and thus reduce the noise.

[0128] According to industry standards, electrical components must be in a closed area, so there must be a structure of an electrical box on the base to isolate the electrical components from the moving components.

[0129] For the in-vehicle air purifier provided in this embodiment, by using the flow guide wall 91 as the separating component between the electrical box 9 and the fan, on the one hand, the electrical components can be isolated from the moving components, meeting industry standards; on the other hand, the flow guide wall 91 can play a role in guiding the flow, thereby reducing the total noise value.

[0130] The electrical box 9 is suitable for placing electrical components such as a control board 6 and a storage battery 7.

[0131] Preferably, for the convenience of wiring, a profiling plate 55 is detachably connected to the flow guide wall 91. A wire passing portion 551 for facilitating the wiring of the connection lines of the electrical components is provided on the profiling plate 55, and after the profiling plate 55 is assembled with the flow guide wall 91, it is suitable for blocking the conduction between the electrical box and the fan.

[0132] For the in-vehicle air purifier provided in this embodiment, by adopting the detachable connection between the profiling plate 55 and the flow guide wall 91 and making the profiling plate 55 match the outer shape of the flow guide wall 91; thus, it not only ensures the smooth wiring of the connection lines, but also can replace at least part of the area of the flow guide wall 91 with the profiling plate 55, effectively reducing the force of the air acting on the wall surface, thereby ensuring the noise reduction effect.

[0133] Specifically, in combination with Figure 6 As shown, the shielding plate 5 includes: a plate surface convex area 53, and the plate surface convex area 53 is suitable for covering the electrical box 9.

[0134] Specifically, in combination with Figure 12 As shown, the shielding plate 5 further includes: a battery fixing portion 532, which extends from the lower surface of the shielding plate 5 and is arranged on the side of the shielding plate 5 facing the electrical box 9; the battery fixing portion 532 is suitable for fixing the storage battery 7 placed in the electrical box 9; and the contact surface between the battery fixing portion 532 and the storage battery 7 is configured to match the shape of the storage battery 7. Thus, when the shielding plate 5 is in the installed state, it can conveniently snap-fix the storage battery 7.

[0135] Preferably, ribs for facilitating the fixing of the control board 6 are also provided on the shielding plate 5. And preferably, the ribs are provided with guiding chamfers to facilitate guiding the snap connection between the control board 6 and the ribs.

[0136] Specifically, combined Figure 9 As shown, the vehicle-mounted air purifier also includes: an upper cover plate 3, which is arranged on a side of the baffle plate 5 away from the bottom shell 2, and the upper cover plate 3 is detachably connected to the baffle plate 5, and the upper cover plate 3 is suitable for covering the filter 8.

[0137] The vehicle-mounted air purifier further includes a suspension cover 1, which is arranged on a side of the upper cover plate 3 away from the shielding plate 5. An air inlet is formed between the suspension cover 1 and the upper cover plate 3.

[0138] Specifically, combined Figure 11 , Figure 12 As shown, the shielding plate 5 is provided with a snap-fitting portion 57, and the snap-fitting portion 57 is suitable for cooperating with a snap-fitting skirt correspondingly provided on the upper cover plate 3;

[0139] A magnet 31 is disposed on one of the upper cover plate 3 and the shielding plate 5 , and an iron sheet 32 ​​is disposed on the other one, and the magnet 31 and the iron sheet 32 ​​are disposed correspondingly.

[0140] The clamping portion 57 and the iron sheet 32 ​​are respectively arranged on both sides of the circumferential edge of the shielding plate 5 , so as to ensure the firmness of fixing the shielding plate 5 .

[0141] The magnet 31 and the iron sheet 32 ​​are attracted to each other when they are close to each other, so as to facilitate the installation of the upper cover plate 3 and the shielding plate 5 .

[0142] Preferably, the magnet is fixed on the upper cover plate 3, and the iron sheet is fixed on the shielding plate, and the two are attracted to fix the front end; the clamping part 57 and the clamping skirt fix the rear end. Preferably, the clamping skirt is inclined at a certain angle to facilitate opening and installing the upper cover plate 3 when replacing the filter.

[0143] Specifically, combined Figure 10 As shown, a mounting portion 533 is extended from the lower surface of the shielding plate 5, and the mounting portion 533 is suitable for fixing the magnet 31 or the iron sheet 32;

[0144] A recessed groove 531 is formed on the upper surface of the shielding plate 5 at a position corresponding to the mounting portion 533 . The recessed groove 531 is suitable for accommodating the iron sheet 32 ​​or the magnet 31 correspondingly arranged on the upper cover plate 3 .

[0145] Specifically, the mounting portion 533 is disposed on the lower surface of the plate raised area 53 and is located within the coverage area of ​​the electrical box 9 .

[0146] Specifically, combined Figure 6 As shown, the shielding plate 5 is provided with a countersunk hole 58, which is suitable for accommodating a screw and making the screw head flush with the upper surface of the shielding plate 5, thereby improving the aesthetics.

[0147] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill 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 exhaustively list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. An in-vehicle air purifier, characterized in that, include: The bottom shell (2) is constructed as a groove-shaped structure; A shielding plate (5), the shielding plate (5) being connected to the opening side of the bottom shell (2); the shielding plate (5) comprising: a plate body (54); a first through hole (51), which is arranged through the plate body (54) and is suitable for forming a clearance space for an air flow path; a second through hole (52), which is arranged through the plate body (54) and is arranged around the outer peripheral side of the first through hole (51), the second through hole (52) being suitable for accommodating a filter (8); the second through hole (52) matches the shape of the filter (8) and is suitable for plugging and matching with the filter (8); a shielding plate support column (56), which is formed by extending the plate body (54) between the first through hole (51) and the second through hole (52) toward a side away from the plate body (54), and is suitable for supporting the shielding plate; The bottom shell (2) comprises: a bottom shell support column (24) extending upward from the bottom surface of the bottom shell (2), the bottom shell support column (24) abutting against the shielding plate support column (56); The bottom shell (2) further comprises: a guide wall (91) extending upward from the bottom surface of the bottom shell (2); the guide wall (91) is arranged close to the outer peripheral surface of the fan (4); the guide wall (91) is adapted to the shape of the outer peripheral surface of the fan (4); a profiling plate (55) is formed on the shielding plate (5); the profiling plate (55) is detachably connected to the guide wall (91); the profiling plate (55) is suitable for leaving space for connecting wires of electrical components in the electrical box (9).

2. The in-vehicle air purifier according to claim 1, characterized in that, The second through hole (52) is suitable for interference fit with the filter screen (8).

3. The in-vehicle air purifier according to claim 1, characterized in that, Also includes: A guide ring (511) extending from a circumferential edge of the first through hole (51) toward a side away from the plate body (54); The guide ring (511) is located on one side upstream of the air flow path and forms an arc surface suitable for guiding the air flow; The guide ring (511) is located on a downstream side of the air flow path and extends to form an anti-backflow section, wherein the anti-backflow section is suitable for preventing air in the downstream area from flowing back to the upstream area.

4. The in-vehicle air purifier according to claim 3, characterized in that, Also includes: The shielding plate support column (56) and the backflow prevention section are located on the same side of the plate body (54).

5. The in-vehicle air purifier according to claim 1, characterized in that, The vehicle-mounted air purifier also includes: a fan (4), arranged corresponding to the first through hole (51) of the shielding plate (5), adapted to guide air to enter through the first through hole (51) and to be discharged along the radial direction of the fan (4); A filter screen (8) is arranged around the circumference of the fan (4) and is arranged corresponding to a first circular arc segment (121) in the circumference of the fan (4); The electrical box (9) surrounds the circumference of the fan (4) and is arranged corresponding to the second circular arc segment (122) of the circumference of the fan (4).

6. The in-vehicle air purifier according to claim 5, characterized in that, The bottom shell (2) comprises: at least one supporting rib (23) disposed on the circumferential side wall of the bottom shell (2), the supporting rib (23) being suitable for supporting the lower surface of the shielding plate (5); At least one buckle (22) is provided on the circumferential side wall of the bottom case (2), and the buckle (22) is adapted to snap onto the upper surface of the shielding plate (5).

7. The in-vehicle air purifier according to claim 5, characterized in that, The bottom case support column (24) is correspondingly arranged with the shielding plate support column (56) provided on the shielding plate (5).

8. The in-vehicle air purifier according to claim 5, characterized in that, The flow guiding wall (91) and at least part of the bottom case (2) enclose to form an electrical box (9); The profiling plate (55) matches the shape of the flow guiding wall (91).

9. The in-vehicle air purifier according to claim 8, characterized in that, The shielding plate (5) includes: a plate surface convex area (53), and the plate surface convex area (53) is adapted to cover the electrical box (9).

10. The in-vehicle air purifier according to claim 9, characterized in that, The shielding plate (5) further includes: a battery fixing part (532), which extends from the lower surface of the shielding plate (5) and is arranged on the side of the shielding plate (5) facing the electrical box (9); the battery fixing part (532) is adapted to fix the storage battery (7) placed in the electrical box (9); and the contact surface of the battery fixing part (532) with the storage battery (7) is configured to match the shape of the storage battery (7).

11. The in-vehicle air purifier according to claim 5, characterized in that, It further includes: An upper cover plate (3) is arranged on the side of the shielding plate (5) away from the bottom case (2). The upper cover plate (3) is detachably connected to the shielding plate (5), and the upper cover plate (3) is adapted to cover the filter screen (8).

12. The in-vehicle air purifier according to claim 11, characterized in that, A clamping part (57) is provided on the shielding plate (5), and the clamping part (57) is adapted to cooperate with a corresponding clamping skirt on the upper cover plate (3); A magnet (31) is provided on one of the upper cover plate (3) and the shielding plate (5), and an iron sheet (32) is provided on the other, and the magnet (31) and the iron sheet (32) are correspondingly arranged.

13. The on-vehicle air purifier according to claim 12, characterized in that, An installation part (533) is formed by extending the lower surface of the shielding plate (5), and the installation part (533) is adapted to fix the magnet (31) or the iron sheet (32); A relief groove (531) is recessed at a position on the upper surface of the shielding plate (5) corresponding to the installation part (533), and the relief groove (531) is adapted to accommodate the corresponding iron sheet (32) or magnet (31) on the upper cover plate (3).

14. The on-vehicle air purifier according to claim 13, characterized in that, The installation part (533) is arranged on the lower surface of the plate surface convex area (53) and is located within the covering area of the electrical box (9).

15. The on-vehicle air purifier according to claim 5, characterized in that, A counterbore (58) is provided on the shielding plate (5), and the counterbore (58) is adapted to accommodate a screw and make the head of the screw flush with the upper surface of the shielding plate (5).

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