A frameless vehicle door c-pillar sealing strip upper corner, c-pillar sealing strip assembly and vehicle

Abstract

A frameless car door C-pillar sealing strip upper corner, C-pillar sealing strip assembly, and vehicle are disclosed, relating to the field of vehicle body structure technology. The C-pillar sealing strip upper corner includes: a corner body having a top surface corresponding to the roof direction and an outer surface corresponding to the side of the vehicle; a water-blocking lip protruding from the inner, rear, and outer sides of the top surface to block water from flowing towards the rear and roof direction on the top surface; and a water guide channel disposed on the top surface to guide the water blocked by the water-blocking lip from the top surface to the outer surface. When water flows in from the gap between the side trim strip and the rear quarter window trim strip, the water is blocked by the water-blocking lip on the top surface of the corner body, preventing it from flowing towards the rear and roof direction. The blocked water is then guided by the water guide channel to the drainage channel inlet of the C-pillar sealing strip and discharged outside the vehicle along the drainage channel path. By improving the sealing structure at the water inlet and optimizing the water flow path, the water leakage problem of the C-pillar sealing strip assembly is solved at its root.

Description

Technical Field

[0001] This application relates to the field of vehicle body structure technology, specifically to a frameless door C-pillar sealing strip upper corner, a frameless door C-pillar sealing strip assembly, and a vehicle. Background Technology

[0002] In most frameless door sealing systems, the C-pillar sealing strip assembly at the rear quarter window generally adopts a conventional structure, without considering extreme working conditions. Specifically: (1) Figure 1 As shown, when there is a gap (design parameters are 0~0.5mm) between the side trim and the rear quarter window trim, water can easily flow in through this gap (see water flow path). Figure 1 (middle arrow), such as Figure 2 As shown, the water flowing in will flow along the rear direction I and the roof direction II to the side panel stop on the top surface of the upper corner, and then along the side panel stop, it will turn over the side panel stop from the weakest corner of the seal and flow into the vehicle; (2) as Figure 3 As shown, when the corner at the rear door C-pillar waistline changes abruptly, the lip of the C-pillar sealing strip is prone to bursting at the corner. Water can easily seep in through the gap in the lip of the C-pillar sealing strip, then fold over the side panel stop and flow into the vehicle. Traditionally, the solution to this problem is to optimize the cross-sectional lip of the C-pillar sealing strip. However, the C-pillar sealing strip requires high assembly precision; even slight misalignment can lead to water leakage. Therefore, solving the water leakage problem of the C-pillar sealing strip assembly is a crucial technical challenge that urgently needs to be addressed in the design of frameless door sealing systems. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a frameless door C-pillar sealing strip upper corner, a C-pillar sealing strip assembly, and a vehicle, so as to solve at least one of the above technical problems.

[0004] In a first aspect, this application provides a frameless door C-pillar sealing strip upper corner, including: a corner body having a top surface corresponding to the roof direction and an outer surface corresponding to the side of the vehicle; a water-blocking lip protruding from the inner side, rear side, and outer side of the top surface for blocking water from flowing on the top surface towards the rear and roof direction; and a water guide groove disposed on the top surface for guiding the water blocked by the water-blocking lip from the top surface to the outer surface.

[0005] In conjunction with the first aspect, in some optional embodiments, it further includes: a connecting part located at a rearward position on the top outer side of the corner body, for connecting to the upper end of the C-pillar sealing strip.

[0006] In conjunction with the first aspect, in some alternative embodiments, the top surface of the connector is higher than the top surface of the corner body to prevent water from flowing from the top surface of the corner body to the top surface of the connector.

[0007] In conjunction with the first aspect, in some optional embodiments, the water-blocking lip includes a first water-blocking lip, a second water-blocking lip, and a third water-blocking lip. The first water-blocking lip extends along the inner side of the top surface, with its front end extending to a point near the front end of the inner side and its rear end extending to the rear end of the inner side. The second water-blocking lip extends along the rear side of the top surface, with its two ends connected to the rear ends of the first and third water-blocking lips, respectively. The third water-blocking lip extends along the outer side of the top surface, with its front end extending to a connecting portion and its rear end extending to the rear end of the outer side.

[0008] In conjunction with the first aspect, in some alternative embodiments, it further includes: a water guide lip, protruding from the outer surface, for forming an inlet of a drainage groove together with the outer surface and the upper part of the C-pillar sealing strip.

[0009] In conjunction with the first aspect, in some optional embodiments, the corner body also has an inner side facing inwards from the side of the vehicle, a longitudinal surface corresponding to the extension direction of the C-pillar, and an arc transition surface connecting the front end of the top surface and the lower end of the longitudinal surface. The inner side is used to fit tightly against the outer surface of the side wall, and the longitudinal surface is used to fit tightly against the C-pillar sealing strip.

[0010] In conjunction with the first aspect, in some alternative embodiments, the water channel extends along the length of the vehicle, and the front side of the water channel has an opening leading to the outer side.

[0011] In conjunction with the first aspect, in some alternative embodiments, the bottom surface of the water guide channel is a slope that is lower in the front and higher in the back, so that water flows from the back to the front along the water guide channel toward the opening.

[0012] Secondly, this application provides a frameless door C-pillar sealing strip assembly, including a lower connecting corner, a C-pillar sealing strip, and the upper connecting corner of the frameless door C-pillar sealing strip mentioned in the first aspect, connected in sequence.

[0013] Thirdly, this application provides a vehicle including the frameless door C-pillar sealing strip assembly described in the second aspect above.

[0014] Based on the above technical solution, the frameless door C-pillar sealing strip upper corner, frameless door C-pillar sealing strip assembly, and vehicle provided in this application, the water-blocking lip of the frameless door C-pillar sealing strip upper corner can block water from flowing from the top surface of the corner body towards the rear and roof of the vehicle. The water guide channel can guide the water blocked by the water-blocking lip from the top surface of the corner body to the outer side, thereby allowing the water to flow to the drainage channel inlet of the C-pillar sealing strip and be discharged outside the vehicle along the drainage channel path. By improving the sealing structure and optimizing the water flow path of the frameless door C-pillar sealing strip upper corner, the water leakage problem of the C-pillar sealing strip assembly is solved at the root of the water inlet point. At the same time, the frameless door C-pillar sealing strip assembly does not have high requirements for assembly precision. Even if the C-pillar sealing strip does not fit perfectly with the side panel stop, relying solely on the drainage of the frameless door C-pillar sealing strip upper corner can effectively prevent water from overflowing the side panel stop and flowing into the vehicle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a frontal view of a portion of the structure of a vehicle in the relevant technology.

[0017] Figure 2 This is a structural schematic diagram of the frameless door C-pillar sealing strip assembly in related technologies.

[0018] Figure 3 This is a side view schematic diagram of a part of the structure of a vehicle in related technologies.

[0019] Figure 4 This is a schematic diagram of the structure of the upper corner of the C-pillar sealing strip of a frameless car door, provided in an embodiment of this application.

[0020] Figure 5 This is a structural schematic diagram of a frameless car door C-pillar sealing strip assembly provided in an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the structure of a frameless door C-pillar sealing strip assembly assembled on a vehicle body, as provided in an embodiment of this application.

[0022] Figure 7 for Figure 5 A magnified view of a portion of point A in the middle.

[0023] Reference numerals: 1. C-pillar sealing strip assembly; 101. Upper corner; 102. C-pillar sealing strip; 2. Side trim strip; 3. Rear quarter window trim strip; 100. Upper corner of frameless door C-pillar sealing strip; 10. Corner body; 11. Top surface; 12. Outer side surface; 13. Longitudinal surface; 14. Arc transition surface; 20. Connecting part; 30. Water-retaining lip; 31. First water-retaining lip; 32. Second water-retaining lip; 33. Third water-retaining lip; 40. Water guide groove; 41. Opening; 50. Water guide lip; 200. C-pillar sealing strip; 300. Lower corner. Detailed Implementation

[0024] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0025] In the description of this application, unless otherwise expressly specified and limited, the terms "connection," "setup," "installation," etc., should be interpreted broadly. For example, "connection" 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; it can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] The terms “first,” “second,” “third,” etc., are used only to distinguish elements with similar properties, and do not indicate or imply relative importance or a specific order, unless otherwise explicitly stated or limited.

[0028] The terms “comprising,” “including,” “having,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0029] The term "multiple" means two or more (including two).

[0030] The term "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0031] The terms "an embodiment," "as an example," and "in one implementation" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which may be included in at least one embodiment or example of this application. These illustrative expressions do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Where there is no conflict, the embodiments and features described in these embodiments can be combined in a suitable manner.

[0032] Figure 4 This is a schematic diagram of the structure of a frameless car door C-pillar sealing strip with an upper joint angle of 100°, provided in an embodiment of this application. Figure 4 As shown in the figure, this application embodiment provides a frameless car door C-pillar sealing strip upper corner 100, which can be integrally molded from rubber material, and includes a corner body 10, a connecting part 20, a water-blocking lip 30, a water-guiding groove 40, and a water-guiding lip 50. The following is a detailed description of each part.

[0033] The corner body 10 has a top surface 11 corresponding to the roof direction, an inner and outer side surface 12 corresponding to the side of the vehicle, a longitudinal surface 13 corresponding to the extension direction of the C-pillar, and an arc transition surface 14 connecting the front end of the top surface 11 and the lower end of the longitudinal surface 13. The front end of the top surface 11 is used to connect with the rear end of the roof sealing strip, the inner side surface is used to tightly fit with the outer surface of the side panel, the outer side surface 12 is used to form the inlet of the drainage groove together with the water guide lip 50 and the C-pillar sealing strip 200, and the longitudinal surface 13 is used to tightly fit with the C-pillar sealing strip 200.

[0034] The connecting part 20 is located at a rearward position on the top outer side of the corner body 10, and is used to connect with the upper end of the C-pillar sealing strip 200. The cross-sectional shape of the connecting part 20 matches the cross-sectional shape of the C-pillar sealing strip 200 to ensure a tight connection between the two. The top surface of the connecting part 20 is also slightly higher than the top surface 11 of the corner body 10 to prevent water from flowing from the top surface 11 of the corner body 10 to the top surface of the connecting part 20.

[0035] The water-blocking lip 30 protrudes from the inner, rear, and outer sides of the top surface 11 of the corner body 10, and is used to block water from flowing towards the rear and roof of the vehicle on the top surface 11 (see...). Figure 2 The flow is in the direction of the rear of the vehicle (I) and the direction of the roof (II).

[0036] As an example, the water-blocking lip 30 includes a first water-blocking lip 31, a second water-blocking lip 32, and a third water-blocking lip 33. The first water-blocking lip 31 extends along the inner side of the top surface 11, with its front end extending to near the front end of the inner side and its rear end extending to the rear end of the inner side. During assembly, the first water-blocking lip 31 overlaps with the side panel in the vehicle height direction, thereby preventing water from flowing towards the roof. The second water-blocking lip 32 extends along the rear side of the top surface 11, with both ends connecting to the rear ends of the first water-blocking lip 31 and the third water-blocking lip 33, respectively. The third water-blocking lip 33 extends along the outer side of the top surface 11, with its front end extending to the connecting portion 20 and its rear end extending to the rear end of the outer side. The second water-blocking lip 32 and the third water-blocking lip 33 together block the water from flowing towards the rear of the vehicle.

[0037] The water guide channel 40 is located on the rear of the top surface 11 of the corner body 10, and is used to guide the water blocked by the water-blocking lip 30 from the top surface 11 to the outer side surface 12.

[0038] As an example, the water guide channel 40 is arranged beside the connecting part 20 and extends along the length of the vehicle. The front side of the water guide channel 40 has an opening 41 leading to the outer side 12, and the rear end of the water guide channel 40 extends to near the second water-retaining lip 32. The bottom surface of the water guide channel 40 is a sloped surface that is lower at the front and higher at the rear, which facilitates water to flow from the rear to the front along the water guide channel 40 to the opening 41.

[0039] The water guide lip 50 protrudes from the outer side 12 of the corner body 10 and is used to form the inlet of the drainage groove together with the outer side 12 and the upper part of the C-pillar sealing strip 200.

[0040] As an example, the water guide lip 50 is arc-shaped, with its upper end extending to the outer side of the top surface 11 near the front end, and its lower end extending to the lower end of the arc transition surface 14; the cross-section of the water guide lip 50 is groove-shaped with the concave side corresponding to the rear direction of the vehicle, which facilitates guiding water on the outer side surface 12 to the drainage groove.

[0041] Figure 5 This is a structural schematic diagram of a frameless car door C-pillar sealing strip assembly 1000 provided in an embodiment of this application, as shown below. Figure 5 As shown in the figure, this application embodiment also provides a frameless car door C-pillar sealing strip assembly 1000, including a frameless car door C-pillar sealing strip upper corner 100, a C-pillar sealing strip 200, and a lower corner 300 connected in sequence.

[0042] When the frameless door C-pillar sealing strip assembly 1000 is installed on the vehicle body, such as Figure 6 As shown, the upper corner 100 of the frameless door C-pillar sealing strip is installed at the upper corner of the C-pillar of the side panel, and is located below the gap between the side panel trim strip 2 and the rear quarter window trim strip 3. The C-pillar sealing strip 200 is installed on the front edge of the C-pillar and the rear quarter window assembly of the side panel, and the lower corner 300 is installed at the lower corner of the C-pillar of the side panel.

[0043] When water flows in through the gap between the side trim 2 and the rear quarter window trim 3, as Figure 7 As shown, the inflowing water is blocked on the top surface 11 of the corner body 10 by the first water-blocking lip 31, the second water-blocking lip 32, and the third water-blocking lip 33, preventing it from flowing towards the rear and the roof of the vehicle. Due to the presence of the water guide channel 40 and the fact that the bottom surface of the water guide channel 40 is a slope that is lower in the front and higher in the rear, the blocked water will flow from the rear to the front along the water guide channel 40 to the opening 41 of the water guide channel 40, and then flow through the opening 41 to the outer side 12 of the corner body 10. It then flows to the inlet of the drainage channel formed by the outer side 12 of the corner body 10, the water guide lip 50, and the upper part of the C-pillar sealing strip 200, and finally drains out of the vehicle along the drainage channel path on the C-pillar sealing strip 200.

[0044] This application also provides a vehicle that includes the frameless door C-pillar sealing strip assembly 1000 described above.

[0045] In summary, the frameless door C-pillar sealing strip upper corner, frameless door C-pillar sealing strip assembly, and vehicle provided in this application embodiment, with its water-blocking lip at the upper corner of the frameless door C-pillar sealing strip, can prevent water from flowing from the top surface of the corner body towards the rear and roof of the vehicle. The water guide channel can guide the water blocked by the water-blocking lip from the top surface of the corner body to the outer side, thereby allowing the water to flow to the drainage channel inlet of the C-pillar sealing strip and drain out of the vehicle along the drainage channel path. By improving the sealing structure and optimizing the water flow path of the upper corner of the frameless door C-pillar sealing strip, the water leakage problem of the C-pillar sealing strip assembly is solved at the root of the water inlet point. At the same time, the frameless door C-pillar sealing strip assembly does not have high requirements for assembly precision. Even if the C-pillar sealing strip does not fit perfectly with the side panel stop, relying solely on the drainage of the upper corner of the frameless door C-pillar sealing strip can effectively prevent water from overflowing the side panel stop and flowing into the vehicle.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application.

Claims

1. A frameless car door C-pillar sealing strip upper corner, characterized in that, include: The corner body has a top surface corresponding to the direction of the vehicle roof and an outer side surface corresponding to the side of the vehicle facing outward; A water-blocking lip protrudes from the inner, rear, and outer sides of the top surface to block water from flowing on the top surface toward the rear and the roof of the vehicle. as well as A water guide channel, provided on the top surface, is used to guide water blocked by the water-blocking lip from the top surface to the outer side surface.

2. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 1, characterized in that, Also includes: The connecting part is located at the rear of the top outer side of the corner body and is used to connect with the upper end of the C-pillar sealing strip.

3. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 2, characterized in that, The top surface of the connecting part is higher than the top surface of the corner body, which is used to prevent water from flowing from the top surface of the corner body to the top surface of the connecting part.

4. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 2, characterized in that, The water-blocking lip includes a first water-blocking lip, a second water-blocking lip, and a third water-blocking lip. The first water-blocking lip extends along the inner side of the top surface, with its front end extending to near the front end of the inner side and its rear end extending to the rear end of the inner side. The second water-blocking lip extends along the rear side of the top surface, with both ends connected to the rear ends of the first water-blocking lip and the third water-blocking lip, respectively. The third water-blocking lip extends along the outer side of the top surface, with its front end extending to the connecting portion and its rear end extending to the rear end of the outer side.

5. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 1, characterized in that, Also includes: The water guide lip protrudes from the outer side surface and is used to form the inlet of the drainage groove together with the outer side surface and the upper part of the C-pillar sealing strip.

6. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 1, characterized in that, The corner body also has an inner side facing inwards from the side of the vehicle, a longitudinal surface corresponding to the extension direction of the C-pillar, and an arc transition surface connecting the front end of the top surface and the lower end of the longitudinal surface. The inner side is used to fit tightly against the outer surface of the side panel, and the longitudinal surface is used to fit tightly against the C-pillar sealing strip.

7. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 1, characterized in that, The water guide channel extends along the length of the vehicle, and an opening leading to the outer side is provided on the front side of the water guide channel.

8. The upper corner joint of the frameless car door C-pillar sealing strip according to claim 7, characterized in that, The bottom surface of the water guide channel is a sloping surface that is lower in the front and higher in the back, so that water flows from back to front along the water guide channel toward the opening.

9. A frameless car door C-pillar sealing strip assembly, characterized in that, It includes the lower corner joint, the C-pillar sealing strip, and the upper corner joint of the frameless door C-pillar sealing strip as described in any one of claims 1-8, which are connected in sequence.

10. A vehicle, characterized in that, Includes the frameless door C-pillar sealing strip assembly as described in claim 9.

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