Back door sealing device and vehicle

Abstract

The utility model provides a back door sealing device and a vehicle, a gap is formed between a back door and a ceiling, the back door sealing device comprises a sealing assembly, the sealing assembly is arranged on the inner side of the back door and can be matched with the ceiling in an abutting mode, and therefore sealing is formed between the back door and the ceiling; the driving assembly is connected with the sealing assembly and used for driving the sealing assembly to be close to or away from one side of the ceiling. Therefore, the sealing assembly is arranged at the gap between the back door and the ceiling in a position-adjustable mode, sealing can be formed between the back door and the ceiling by abutting and matching the sealing piece and the ceiling, whistling and howling caused by air flow formed at the gap between the back door and the ceiling due to internal and external pressure difference are prevented, and the NVH performance of a vehicle is improved. Meanwhile, when the back door of the vehicle needs to be opened, the sealing assembly can be retracted to prevent interference between the sealing assembly and the ceiling.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a tailgate sealing device and a vehicle. Background Art

[0002] It should be noted that, currently, the back door of a vehicle can be flipped relative to the body to open or close the trunk space of the vehicle. In order to ensure the flipping reliability of the back door and the body, a gap is usually reserved between the back door and the ceiling of the body, which affects the NVH (Noise, Vibration, Harshness) performance of the vehicle near the back door area (such as the rear seat of the vehicle), resulting in a poor riding experience for the rear passengers.

[0003] In the related art, the gap width is reduced by setting a lip at the back door of the vehicle, but sealing cannot be achieved. When the vehicle is driving at high speed, air flow will be formed in the gap between the back door and the ceiling due to the pressure difference between the inside and the outside. When the high-speed airflow passes through the narrow gap, whistling and howling will be generated, affecting the riding experience of the driver and passengers. Utility Model Content

[0004] In view of this, the present application aims to provide a tailgate sealing device to achieve sealing of the gap between the tailgate and the ceiling.

[0005] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0006] A back door sealing device is provided, wherein a gap is formed between the back door and a ceiling, and the back door sealing device comprises: a sealing component, which is arranged on the inner side of the back door and can abut against the ceiling to form a seal between the back door and the ceiling; and a driving component, which is connected to the sealing component and is used to drive the sealing component to move closer to or away from one side of the ceiling.

[0007] In some embodiments of the present application, the driving component includes: a driving motor having a motor shaft; an engaging component, the engaging component including an active part and a driven part, the active part is connected to the motor shaft, the driven part is connected to the sealing component, and the active part can engage with the driven part to drive the sealing component to move.

[0008] In some embodiments of the present application, the active part is configured as a bevel gear, the driven part is configured as a bevel gear plate, and the sealing assembly is connected to one side of the bevel gear plate in the axial direction.

[0009] In some embodiments of the present application, the bevel gear plate includes: a wheel plate body, the wheel plate body is provided with an annular tooth portion meshing with the bevel gear; and a mounting protrusion, the mounting protrusion is eccentrically arranged on the wheel plate body, and the mounting protrusion is used to connect to the sealing assembly.

[0010] In some embodiments of the present application, the sealing assembly includes: a moving rod, a first end of which is connected to the mounting protrusion; and a sealing member, which is disposed at a second end of the moving rod and extends from the moving rod to one side of the ceiling.

[0011] In some embodiments of the present application, a mounting seat is provided at the first end, and the mounting seat forms a slide groove extending along the first direction, and at least a portion of the mounting protrusion is slidably disposed in the slide groove; the sealing assembly also includes a guide seat, which is fixed to the back door and forms a guide groove extending along the second direction, and the moving rod is passed through the guide groove and cooperates with the guide groove.

[0012] In some embodiments of the present application, the first direction is arranged perpendicular to the second direction.

[0013] In some embodiments of the present application, the extension length of the slide groove in the first direction is L, the movement radius of the mounting protrusion on the wheel body is R, and the relationship is satisfied: L≥2R.

[0014] In some embodiments of the present application, the second end is provided with a connecting portion, and the connecting portion is used to be connected to the sealing member.

[0015] Compared with the prior art, the back door sealing device described in this application has the following advantages:

[0016] (1) The sealing component can be retractably arranged in the gap between the back door and the ceiling. The sealing component can be abutted against the ceiling to form a seal between the back door and the ceiling, preventing the airflow in the gap between the back door and the ceiling due to the pressure difference between the inside and outside, thereby preventing the whistling and howling sound from being generated, thereby improving the NVH performance of the vehicle. At the same time, when the back door of the vehicle needs to be opened, the sealing component can be retracted to prevent interference between the sealing component and the ceiling.

[0017] (2) The driving assembly and the sealing assembly cooperate closely, and the driving sealing assembly has good stability during the reciprocating movement.

[0018] Another object of the present application is to provide a vehicle.

[0019] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0020] A vehicle comprises the above-mentioned tailgate sealing device.

[0021] The advantages of the vehicle and the above-mentioned tailgate sealing device over the prior art are the same, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 Schematic diagram of the coordination of the back door sealing device, the back door and the ceiling according to an embodiment of the present application Figure 1 ;

[0024] Figure 2 Schematic diagram of the coordination of the back door sealing device, the back door and the ceiling according to an embodiment of the present application Figure 2 ;

[0025] Figure 3 A schematic diagram of a back door sealing device according to an embodiment of the present application Figure 1 ;

[0026] Figure 4 A schematic diagram of a back door sealing device according to an embodiment of the present application Figure 2 ;

[0027] Figure 5 A schematic diagram of a back door sealing device according to an embodiment of the present application Figure 3 ;

[0028] Figure 6 A schematic diagram of a back door sealing device according to an embodiment of the present application Figure 4 ;

[0029] Figure 7 A schematic diagram of a back door sealing device according to an embodiment of the present application Figure 5 .

[0030] Description of reference numerals:

[0031] Back door sealing device 100; back door 200; ceiling 300;

[0032] Sealing assembly 1; moving rod 11; first end 111; second end 112; sink 1121; mounting seat 113; slide groove 1131; connecting portion 114; sealing member 12;

[0033] Driving assembly 2; driving motor 21; meshing assembly 22; bevel gear 221; bevel gear disc 222; wheel disc body 2221; mounting protrusion 2222; annular tooth portion 2223. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0035] The back door sealing device 100 of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments, so that the back door sealing device 100 can seal the gap between the back door 200 and the ceiling 300.

[0036] It should be noted that, at present, the back door 200 of the vehicle can be flipped relative to the vehicle body to open or close the trunk space of the vehicle. In order to ensure the flip reliability of the back door 200 and the vehicle body, a gap is usually reserved between the back door 200 and the ceiling 300 of the vehicle body, thereby affecting the NVH (Noise, Vibration, Harshness) performance of the area near the back door 200 (such as the rear seat of the vehicle), resulting in a poor riding experience for the rear passengers. In the related art, the gap width is reduced by setting a lip edge at the back door 200 of the vehicle, but sealing cannot be achieved. When the vehicle is driving at high speed, the gap between the back door 200 and the ceiling 300 will form an airflow under the action of the internal and external pressure difference, and there is a whistle and howl when the high-speed airflow passes through the narrow gap, affecting the riding experience of the driver and passengers.

[0037] According to the back door sealing device 100 of the embodiment of the present application, the back door sealing device 100 includes: a sealing component 1 and a driving component 2. The sealing component 1 is arranged on the inner side of the back door 200, and the sealing component 1 can be abutted and matched with the ceiling 300, so as to form a seal between the back door 200 and the ceiling 300 by shielding the gap between the back door 200 and the ceiling 300 through the sealing component 1, so as to prevent the airflow from passing through the gap and generating noise.

[0038] Combination Figure 1 and Figure 2 The driving assembly 2 is connected to the sealing assembly 1, and the driving assembly 2 is used to drive the sealing assembly 1 to move closer to or away from the ceiling 300 to adjust the position of the sealing assembly 1 relative to the ceiling 300. Figure 1 , the sealing assembly 1 is in contact with the ceiling 300 to form a seal between the back door 200 and the ceiling 300 through the sealing assembly 1; refer to Figure 2 Under the action of the driving assembly 2, the sealing assembly 1 moves away from the side of the ceiling 300, so as to adjust the sealing assembly 1 to a position suitable for avoiding the ceiling 300 to prevent the sealing assembly 1 from interfering with the ceiling 300.

[0039] It is understandable that when the tailgate 200 of the vehicle needs to be opened, if the sealing assembly 1 still maintains the posture of extending toward the side of the ceiling 300 , the sealing assembly 1 will interfere with the ceiling 300 and affect the opening and closing of the tailgate 200 .

[0040] In the present application, the sealing assembly 1 is disposed on the inner side of the back door 200 and is used to cooperate with the driving assembly 2 so as to adjust the position of the sealing assembly 1 relative to the back door 200 through the driving assembly 2. Figure 1 When the back door 200 does not need to be opened, the driving assembly 2 drives the sealing assembly 1 to abut against the ceiling 300, and the sealing assembly 1 blocks the gap between the back door 200 and the ceiling 300 to prevent noise from being generated during the driving of the vehicle, thereby improving the NVH performance of the whole vehicle; refer to Figure 2 When the vehicle door needs to be opened, the driving assembly 2 drives the sealing assembly 1 to move away from the ceiling 300, so as to reserve a gap between the back door 200 and the ceiling 300 for the back door 200 to flip relative to the ceiling 300, thereby preventing interference between the sealing assembly 1 and the ceiling 300.

[0041] It should be noted that the back door sealing device 100 can be constructed as a device independent of the back door 200, and the whole device can be assembled on the back door 200 through a connecting structure. Of course, each part of the back door sealing device 100 (such as the sealing component 1 or the driving component 2) can also be assembled on the back door 200 separately. That is to say, a mounting carrier for mounting the sealing component 1 and the driving component 2 can be provided in the back door sealing device 100, and the back door sealing device 100 can be further assembled at the position of the back door 200 near the ceiling 300 by connecting and cooperating with the mounting carrier and the back door 200. It is also possible to construct a part of the back door 200 near the ceiling 300 as a mounting carrier (i.e., equivalent to a part of the back door sealing device 100 in the present application), and integrate the back door sealing device 100 on the back door 200 by connecting and cooperating with the sealing component 1, the driving component 2 and the back door 200.

[0042] Reference Figure 1 and Figure 2 The position of the driving assembly 2 relative to the back door 200 is fixed, and the various components in the driving assembly 2 (such as: driving motor 21, meshing assembly 22, etc.) can be directly assembled on the sheet metal of the back door 200, or can be further assembled on the back door 200 through the mounting carrier after being installed on a mounting carrier (such as: mounting bracket, etc.).

[0043] like Figure 1 and Figure 2 As shown, in some embodiments of the present application, the driving component 2 includes: a driving motor 21 and an engaging component 22, the driving motor 21 has a motor shaft, the engaging component 22 includes an active part and a driven part, the active part is connected to the motor shaft, the driven part is connected to the sealing component 1, and the active part can engage with the driven part to drive the sealing component 1 to move.

[0044] Specifically, the driving motor 21 outputs a driving force through the motor shaft to drive the active part to rotate through the motor shaft, and further drives the driven part to move through the meshing of the active part and the driven part, so as to drive the seal 12 to move through the driven part. Thus, the driving force output by the driving motor 21 is converted into a force suitable for driving the seal assembly 1 to move through the meshing assembly 22, so as to drive and adjust the position of the seal assembly 1.

[0045] Combination Figure 1 and Figure 3 As shown, in some embodiments of the present application, the active part is configured as a bevel gear 221 , the driven part is configured as a bevel gear plate 222 , and the sealing assembly 1 is connected to one side of the bevel gear plate 222 in the axial direction.

[0046] Reference Figure 1 The sealing assembly 1 is arranged on one side of the bevel gear plate 222 in the axial direction, so that the sealing assembly 1 is driven to move by the bevel gear plate 222. Among them, the bevel gear 221 is connected to the motor shaft, and the bevel gear 221 can rotate synchronously with the motor shaft. The bevel gear 221 can mesh with the bevel gear plate 222 to drive the bevel gear plate 222 to rotate around its central axis, and further drive the sealing assembly 1 to move through the bevel gear plate 222, so as to realize the driving of the sealing assembly 1.

[0047] It should be noted that a connecting shaft structure (not shown) is provided at the bevel gear disc 222 to enable the bevel gear disc 222 to rotate around the central axis of the connecting shaft. The connecting shaft structure can be formed on the bevel gear disc 222 and integrally arranged with the bevel gear disc 222. In this case, an axial hole for connecting and cooperating with the connecting shaft structure needs to be formed on the mounting carrier of the drive assembly 2; the connecting shaft structure can also be constructed as an independent shaft structure, which is penetrated and matched with the bevel gear disc 222, and the connecting shaft structure can be installed on the mounting carrier of the drive assembly 2 (such as: housing structure, etc.); the connecting shaft structure can also be directly formed on the mounting carrier of the drive assembly 2 (such as: housing structure, etc.), and the bevel gear disc 222 can be rotated and matched with the connecting shaft structure by sleeve arrangement.

[0048] like Figure 1 As shown, in a further embodiment of the present application, the bevel gear disc 222 includes: a wheel disc body 2221 and a mounting protrusion 2222, the wheel disc body 2221 is provided with an annular tooth portion 2223 meshing with the bevel gear 221, so as to drive the wheel disc body 2221 to rotate around its central axis through the engagement of the annular tooth portion 2223 with the bevel gear 221, the mounting protrusion 2222 is eccentrically arranged on the wheel disc body 2221, and the mounting protrusion 2222 is used to be connected to the sealing assembly 1 to drive the sealing assembly 1 to move through the mounting protrusion 2222.

[0049] It can be understood that the mounting protrusion 2222 is eccentrically arranged relative to the roulette body 2221, and the mounting protrusion 2222 is located radially inside the annular tooth portion 2223. The mounting protrusion 2222 can rotate synchronously with the roulette body 2221 to achieve circular motion of the mounting protrusion 2222 around the central axis of the roulette body 2221.

[0050] Reference Figure 1 and Figure 2 The mounting protrusion 2222 is arranged on the side surface of the wheel body 2221 opposite to the sheet metal of the back door 200, and the mounting protrusion 2222 is protruded toward the side of the back door 200 on the side surface of the wheel body 2221 opposite to the back door 200, so that the sealing assembly 1 can be arranged between the wheel body 2221 and the sheet metal of the back door 200, which is convenient for arranging the sealing assembly 1 in a position that compactly matches the sheet metal of the back door 200.

[0051] like Figure 1 and Figure 2 As shown, in a further embodiment of the present application, the sealing assembly 1 includes: a moving rod 11 and a sealing member 12, the first end 111 of the moving rod 11 is connected to the mounting protrusion 2222, the sealing member 12 is arranged at the second end 112 of the moving rod 11, and the sealing member 12 extends from the moving rod 11 to one side of the ceiling 300.

[0052] It is understandable that the seal 12 can be abutted against the ceiling 300, and the seal 12 can be constructed as a rubber member with good deformability to ensure the sealing effect of the seal 12 and the ceiling 300 when the seal 12 is abutted against the ceiling 300.

[0053] The moving rod 11 is a mounting carrier of the seal 12, and is used to connect and cooperate with the driving assembly 2 and drive the seal 12 to move. The moving rod 11 can be constructed as a plastic part or a metal part, so that the moving rod 11 has good wear resistance and high structural strength, and ensures the reliability of the moving rod 11 and the driving assembly 2.

[0054] like Figure 1 and Figure 2 As shown, in a further embodiment of the present application, a mounting seat 113 is provided at the first end 111, and the mounting seat 113 is formed with a slide groove 1131 extending along the first direction, and at least a portion of the mounting protrusion 2222 can be slidably disposed in the slide groove 1131, so as to realize the reciprocating movement of the moving rod 11 through the sliding cooperation between the mounting protrusion 2222 and the mounting seat 113.

[0055] Among them, the mounting seat 113 is formed with a slide groove 1131 open to one side of the roulette body 2221, and the mounting seat 113 can be overlapped on the surface of the roulette body 2221 on one side where the mounting protrusion 2222 is provided, and the mounting protrusion 2222 is arranged in the slide groove 1131. In the process of the mounting protrusion 2222 rotating with the roulette body 2221, it can slide relative to the mounting seat 113 and drive the moving rod 11 to move.

[0056] In some embodiments of the present application, the sealing assembly 1 further includes a guide seat (not shown), which is fixed to the back door 200 and is formed with a guide groove extending along the second direction, and the moving rod 11 is inserted into the guide groove, and the moving rod 11 cooperates with the guide groove. Under the guidance of the guide groove, the moving rod 11 can reciprocate along the second direction.

[0057] It should be noted that the moving rod 11 extends along the second direction, and the guide seat is formed with a guide groove extending along the second direction, and cooperates with the guide of the moving rod 11. Under the guiding action of the guide seat, the moving rod 11 can only move along its length direction, which can play a good restraining role on the movement of the moving rod 11, prevent the moving rod 11 from shaking, and improve the stability of the moving rod 11 during the movement process.

[0058] Among them, the guide seat can be constructed as a part of the mounting carrier of the tailgate sealing device 100, can be integrated on the sheet metal of the tailgate 200, or can be constructed as an independent mounting structure relative to the tailgate 200, and further fixed at the tailgate 200 to guide the moving rod 11.

[0059] Reference Figure 3 and Figure 5 The wheel body 2221 rotates around its central axis, and the mounting protrusion 2222 performs a circular motion driven by the wheel body 2221. During the circular motion of the mounting protrusion 2222, the mounting protrusion 2222 slides with the mounting seat 113 (i.e., the mounting protrusion 2222 slides in the slide groove 1131). Since the moving rod 11 is guided by the guide seat, the moving rod 11 can only move in the second direction, and thus the moving rod 11 can only reciprocate in the second direction driven by the mounting protrusion 2222.

[0060] Combination Figure 3 , Figure 5 and Figure 7 Describe the driving cooperation process between the bevel gear plate 222 and the moving rod 11 according to the embodiment of the present application:

[0061] Reference Figure 3 , the moving rod 11 is in the extended position, that is, the sealing member 12 is adapted to abut against the ceiling 300 to form a seal between the back door 200 and the ceiling 300 .

[0062] When it is necessary to drive the sealing assembly 1 to separate from the ceiling 300, the bevel gear 221 meshes with the annular tooth portion 2223 to drive the wheel disc body 2221 to rotate, and the mounting protrusion 2222 rotates synchronously with the wheel disc body 2221. Figure 7 Taking the case where the wheel body 2221 rotates counterclockwise as an example, the mounting protrusion 2222 rotates to Figure 7 In the position shown in FIG. 1 , since the moving rod 11 can only move along the second direction, under the driving of the mounting protrusion 2222, the moving rod 11 moves along one side of the second direction (towards Figure 7 The side of the mobile rod 11 (a side of which a motor is provided) moves to realize the retraction action of the moving rod 11.

[0063] Reference Figure 5 , the mounting protrusion 2222 is further rotated counterclockwise to Figure 5 When the sealing assembly 1 is at the position shown in FIG. 1 , the mounting protrusion 2222 can drive the movable rod 11 to be further retracted to adjust the sealing assembly 1 to an area suitable for completely avoiding the ceiling 300 .

[0064] It is understandable that when the sealing assembly 1 needs to be adjusted to a sealing position where it abuts against the ceiling 300, the bevel gear plate 222 can be driven to rotate by the driving motor 21 to adjust the mounting protrusion 2222 to the sealing position. Figure 3 The driving motor 21 can continue to drive the wheel disc to rotate counterclockwise, or can drive the wheel disc to rotate clockwise (i.e., the reverse action of the above-mentioned retracting action).

[0065] like Figure 3 and Figure 5 As shown, in some embodiments of the present application, the first direction is perpendicular to the second direction, so as to ensure the movable stroke of the moving rod 11 while ensuring the stability of the cooperation between the mounting protrusion 2222 and the moving rod 11.

[0066] Reference Figure 3 and Figure 5 When the moving rod 11 passes through the central axis of the bevel gear plate 222, the moving stroke length of the moving rod 11 relative to the driving assembly 2 is equal to the diameter size of the circular motion of the mounting protrusion 2222.

[0067] like Figure 3 , Figure 5 and Figure 7 As shown, in some embodiments of the present application, the extension length of the slide groove 1131 in the first direction is L, the movement radius of the mounting protrusion 2222 on the wheel body 2221 is R, and the relationship is satisfied: L ≥ 2R. Thus, the mounting protrusion 2222 can be prevented from falling out of the slide groove 1131, ensuring the reliability of the matching between the mounting protrusion 2222 and the mounting seat 113.

[0068] It should be noted that the driving cooperation mode of the meshing assembly 22 and the sealing assembly 1 is not limited to this. In other embodiments, the active part is configured as a screw and the driven part is configured as a sleeve. The screw can be integrally provided with the motor shaft of the driving motor 21, and the sleeve is meshed with the screw by sleeve arrangement. Through the cooperation between the screw and the sleeve with internal threads, the rotational driving force can be converted into a linear drive, so as to realize driving the sealing assembly 1 to move in a linear direction.

[0069] It is understandable that the sealing assembly 1 (such as the moving rod 11) is fixedly connected to the screw, and a limiting structure is provided at the sleeve to limit the sleeve from rotating with the motor shaft, so as to ensure that the sleeve moves linearly under the drive of the screw. By controlling the forward and reverse rotation of the motor, the sleeve can be reciprocated in the axial direction of the motor shaft.

[0070] Reference Figure 3 and Figure 5 In some embodiments of the present application, the second end 112 is provided with a connecting portion 114 , and the connecting portion 114 is used to be connected to the sealing member 12 to achieve connection between the connecting portion 114 and the sealing member 12 .

[0071] In some embodiments, the connection portion 114 is configured as a mounting post, and the seal 12 is provided with a mounting hole, which is plug-fitted with the mounting post. The fitting method is simple and facilitates assembly between the seal 12 and the moving rod 11 .

[0072] like Figure 1 As shown, a recessed groove 1121 is formed at the second end 112 of the moving rod 11, and the recessed groove 1121 is recessed along the thickness direction of the moving rod 11. The mounting post is arranged at the recessed groove 1121, and the recessed depth of the recessed groove 1121 is consistent with the thickness dimension of the sealing member 12. When the sealing member 12 is fixed at the recessed groove 1121 by the mounting post, the upper surface of the sealing member 12 (i.e., the surface of the sheet metal side adjacent to the back door 200) is arranged flush with the surface of the moving rod 11, so that the sealing assembly 1 has a regular structure.

[0073] In some embodiments of the present application, the sealing member 12 is configured as a sealing strip, and the sealing strip is fixedly connected to the moving rod 11 via a connecting portion 114 , so that the moving rod 11 drives the sealing strip to move.

[0074] It should be noted that when the tailgate sealing device 100 is assembled to the vehicle, the sealing strip is extended along the width direction of the vehicle to fully correspond to the gap between the tailgate 200 and the ceiling 300, thereby ensuring the sealing strip's shielding effect on the gap.

[0075] Reference Figure 3 It can be seen that Figure 3 Only a portion of the sealing strip is shown, and the drive assembly 2 is connected to the sealing strip via a moving rod 11.

[0076] In some embodiments of the present application, the tailgate sealing device 100 is provided with a plurality of sets of connected and cooperating drive assemblies 2 and moving rods 11, and the plurality of drive assemblies 2 and moving rods 11 are arranged at intervals in the length direction of the sealing strip (i.e., the width direction of the vehicle) so as to synchronously drive the sealing strip to move through the plurality of moving rods 11.

[0077] In other embodiments of the present application, the sealing assembly 1 includes a plurality of movable rods 11, the plurality of movable rods 11 are arranged at intervals in the length direction of the sealing strip, and at least one of the plurality of movable rods 11 is connected to the driving assembly 2 so that the movable rod 11 is driven by the driving assembly 2 to drive the sealing strip to move.

[0078] Further, when only one set of driving components 2 is provided in the back door sealing device 100, one of the plurality of moving rods 11 is connected to the driving component 2, and the other moving rods 11 (referring to: the moving rods 11 not connected to the driving component 2) can be respectively guided and matched with the guide seats to improve the stability of the sealing component 1 during movement. At this time, the sealing component 1 is driven to move by only one set of driving components 2.

[0079] The back door sealing device 100 according to the embodiment of the present application has at least the following advantages:

[0080] (1) The sealing assembly 1 is retractably arranged at the gap between the back door 200 and the ceiling 300. The sealing member 12 is in contact with the ceiling 300 to form a seal between the back door 200 and the ceiling 300, thereby preventing the airflow caused by the internal and external pressure difference in the gap between the back door 200 and the ceiling 300 from generating whistling and howling, thereby improving the NVH performance of the vehicle. At the same time, when the back door 200 of the vehicle needs to be opened, the sealing assembly 1 can be retracted to prevent interference between the sealing assembly 1 and the ceiling 300.

[0081] (2) The driving assembly 2 and the sealing assembly 1 cooperate closely, and the driving sealing assembly 1 has good stability during the reciprocating movement.

[0082] The vehicle according to the embodiment of the present application includes the above-mentioned back door sealing device 100, which can achieve sealing between the back door 200 and the ceiling 300 during high-speed driving of the vehicle, prevent the gap between the back door 200 and the ceiling 300 from forming airflow under the action of the internal and external pressure difference, avoid whistling and howling when high-speed airflow passes through a narrow gap, and improve the quietness of the rear area of ​​the vehicle. At the same time, when the back door 200 is opened, the sealing component 1 can be retracted to ensure smooth opening of the back door 200; when the back door 200 is closed, the sealing component 1 is extended to ensure the sealing of the back door 200 and the ceiling 300.

[0083] The back door sealing device 100 in the present application is arranged at the edge of the sheet metal of the back door 200, that is, the area of ​​the back door 200 adjacent to the ceiling 300, and the wiring harness at the back door 200 can be electrically connected to the back door sealing device 100, such as: the wiring harness is electrically connected to the drive motor 21, so that the drive motor 21 and the back door 200 can work together. When the back door 200 is opened by electronic control, the drive motor 21 can be started synchronously and drive the sealing assembly 1 to retract, so as to prevent the back door 200 from interfering with the ceiling 300 during the opening process.

[0084] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A back door sealing device, characterized in that: A gap is formed between the back door (200) and the ceiling (300), and the back door sealing device comprises: A sealing component (1), the sealing component (1) being arranged on the inner side of the back door (200) and being capable of abutting against the ceiling (300) to form a seal between the back door (200) and the ceiling (300); A driving component (2), the driving component (2) being connected to the sealing component (1) and being used to drive the sealing component (1) to move toward or away from one side of the ceiling (300).

2. The back door sealing device according to claim 1, characterized in that: The driving assembly (2) comprises: A drive motor (21), wherein the drive motor (21) has a motor shaft; The meshing assembly (22) comprises an active part and a passive part, wherein the active part is connected to the motor shaft, the passive part is connected to the sealing assembly (1), and the active part can mesh with the passive part to drive the sealing assembly (1) to move.

3. The back door sealing device according to claim 2, characterized in that: The active part is configured as a bevel gear (221), the driven part is configured as a bevel gear plate (222), and the sealing assembly (1) is connected to one side of the bevel gear plate (222) in the axial direction.

4. The back door sealing device according to claim 3, characterized in that: The bevel gear plate (222) comprises: A wheel disc body (2221), wherein the wheel disc body (2221) is provided with an annular tooth portion (2223) meshing with the bevel gear (221); A mounting protrusion (2222), wherein the mounting protrusion (2222) is eccentrically arranged on the wheel disc body (2221), and the mounting protrusion (2222) is used to be connected to the sealing assembly (1).

5. The back door sealing device according to claim 4, characterized in that: The sealing assembly (1) comprises: A moving rod (11), wherein a first end (111) of the moving rod (11) is connected to the mounting protrusion (2222); A sealing member (12), wherein the sealing member (12) is arranged at the second end (112) of the moving rod (11) and extends from the moving rod (11) toward one side of the ceiling (300).

6. The back door sealing device according to claim 5, characterized in that: The first end (111) is provided with a mounting seat (113), and the mounting seat (113) is formed with a slide groove (1131) extending along a first direction, and at least a portion of the mounting protrusion (2222) is slidably disposed in the slide groove (1131); The sealing assembly (1) further comprises a guide seat, which is fixed to the back door (200) and forms a guide groove extending along the second direction, and the moving rod (11) is inserted into the guide groove and cooperates with the guide groove.

7. The back door sealing device according to claim 6, characterized in that: The first direction is arranged perpendicular to the second direction.

8. The back door sealing device according to claim 6, characterized in that: The extension length of the slide groove (1131) in the first direction is L, the movement radius of the mounting protrusion (2222) on the wheel disc body (2221) is R, and the relationship is satisfied: L≥2R.

9. The back door sealing device according to claim 5, characterized in that: The second end (112) is provided with a connecting portion (114), and the connecting portion is used to be connected to the sealing element (12).

10. A vehicle, characterized in that: The invention comprises a back door sealing device according to any one of claims 1 to 9.

Images