Hidden type water cutting vehicle door edge covering structure, vehicle door assembly and vehicle

Abstract

The embodiment of the invention relates to the technical field of vehicles, and discloses a hidden type water cutting vehicle door edge covering structure, a vehicle door assembly and a vehicle, the hidden type water cutting vehicle door edge covering structure comprises a vehicle door outer plate, an outer plate reinforcing part and a vehicle door inner plate, and the outer plate reinforcing part is arranged on the side, facing the vehicle door inner plate, of the vehicle door outer plate; an edge covering structure is arranged on the peripheral edge of the car door outer plate, the edge covering structure comprises a first edge covering section, the length of the first edge covering section is set in the first direction, and the first edge covering section covers the top of the outer plate reinforcing part; a first mounting part and a second mounting part are arranged on the two different sides of the outer plate reinforcing plate in the first direction correspondingly, and a first lap joint part and a second lap joint part are arranged on the top of the automobile door inner plate. The first edge covering section and the vehicle door inner plate are arranged in a spaced mode in the second direction. A step-shaped edge surface can be prevented from appearing at the matching position of the vehicle door covering edge and the outer water cutting.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, specifically to a concealed water-cutting door edging structure, a door assembly, and a vehicle. Background Technology

[0002] As competition intensifies in the automotive market, users are placing higher demands on the appearance and overall quality of mid-to-high-end car doors. Hidden water-cut doors, which enhance the vehicle's clean and aesthetically pleasing appearance, have become a mainstream feature. The sheet metal assembly of a hidden water-cut door includes an outer door panel, outer panel reinforcement, and an inner door panel. The left, right, and lower sides of the inner door panel overlap with the outer door panel, while a gap is maintained between the upper side of the inner door panel and the outer door panel to accommodate the lifting and lowering of the door window. Simultaneously, the four edges of the outer door panel are connected to the outer panel reinforcement or the inner door panel via an edging structure to ensure the structural strength of the door assembly. However, in existing structures, the thickness of the outer panel reinforcement and the inner door panel differs, and the overlapping positions of various components in the door assembly exhibit different fits (double-component overlap, triple-component overlap), resulting in significant variations in the total thickness of the door assembly at different edging structures. This can lead to stepped ridges in some areas of the edging structure. Concealed water deflectors have stringent requirements for the flatness of the mounting surface. If the aforementioned stepped edges appear at the installation location of the outer water deflector, it will directly damage the tight fit between the outer water deflector and the door sheet metal, leading to seal failure. This significantly increases the risk of rainwater leakage from the door and can also cause wind noise during driving, severely reducing the overall sealing performance and appearance quality of the vehicle. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this application is to provide a concealed water-cutting door edge structure, door assembly and vehicle, which aims to prevent stepped ridges from appearing at the position where the door edge and the outer water-cutting meet.

[0004] In a first aspect, embodiments of this application provide a concealed water-cutting door edge-wrapping structure, including an outer door panel, an outer panel reinforcement member, and an inner door panel, wherein the outer panel reinforcement member is disposed on the side of the outer door panel facing the inner door panel; The outer edge of the door panel is provided with an edge-binding structure, the edge-binding structure includes a first edge-binding section, the length of the first edge-binding section is set along a first direction, and the first edge-binding section covers the top of the outer panel reinforcement. The outer panel reinforcing plate is provided with a first mounting part and a second mounting part on different sides in the first direction, and the top of the inner door panel is provided with a first overlapping part and a second overlapping part. The first overlapping part is connected to the first mounting part, and the second overlapping part is connected to the second mounting part. The first edge banding section is spaced apart from the inner door panel along the second direction. The first direction and the second direction are perpendicular to each other.

[0005] The first direction is from rear to front, and the second direction is from top to bottom. The concealed water-cutting door edging structure can be applied to the rear door. In this case, the first mounting part is located on the side closer to the C-pillar, and the second mounting part is located on the side closer to the B-pillar. The thickness of the outer panel reinforcement is greater than the thickness of the inner door panel and the outer door panel. For example, the thickness of the outer panel reinforcement can be 1.2mm or greater, and the thickness of the inner door panel and the outer door panel can be any value between 0.6mm and 0.75mm. The first overlapping part and the first mounting part can be connected by welding, and the second overlapping part and the second mounting part can be connected by welding.

[0006] With this configuration, since the first edge banding section covers the top of the outer panel reinforcement and is spaced apart from the inner door panel along the second direction, there is a gap in the vertical direction between the upper edge of the inner door panel and the first edge banding section. The top of the outer panel reinforcement provides a flat support surface. After the first edge banding section covers this support surface, the surface of the first edge banding section is also flat and does not form a stepped edge. The installation position of the first edge banding section corresponds to that of the outer water cutter, which can ensure a tight fit between the outer water cutter and the first edge banding section, prevent sealing failure due to stepped edge, thereby reducing the risk of rainwater leakage and reducing wind noise during driving, improving the overall sealing performance and appearance quality of the vehicle.

[0007] In one possible embodiment, the external reinforcement includes a reinforcement body and an upper side panel. The upper side panel and the reinforcement body are connected sequentially along a second direction. The upper side panel is flat. A second mounting portion is disposed on the reinforcement body, and a first mounting portion is disposed on the upper side panel. A reinforcement notch is provided between the reinforcement body and the first mounting portion. A first edge-covering section covers the upper side panel. The inner door panel is positioned opposite to the reinforcement body, and a glass movement channel is formed between them.

[0008] This design allows uneven structures such as weight-reducing holes and reinforcing ribs to be placed on the main body of the reinforcing component, while the flat upper side panel provides a smooth support surface for the first edge banding section. The position of the inner door panel corresponds to the position of the main body of the reinforcing component, thus ensuring that the entire inner door panel is located below the first edge banding section, preventing the inner door panel from affecting the covering thickness of the first edge banding section.

[0009] In one possible embodiment, the edging structure further includes a second edging segment and a third edging segment; the second edging segment and the third edging segment are respectively disposed on different sides of the first edging segment in a first direction, the top of the second edging segment is connected to the first edging segment, and an edging notch is provided between the top of the third edging segment and the first edging segment.

[0010] With this configuration, when the concealed water-cut door edging structure is applied to the rear door, the second edging section is located near the C-pillar, and the third edging section is located near the B-pillar. This shifts the stepped ridge caused by the thickness difference between the inner door panel and the main reinforcement from a critical area corresponding to the outer water-cut to a non-critical area away from the outer water-cut. Furthermore, the connection point between the second and first edging sections is located at a corner near the C-pillar, a continuously curved area with its own height difference. This better absorbs the thickness difference between the inner door panel and the main reinforcement, reducing the number of stepped ridges and improving the overall appearance quality of the vehicle.

[0011] In one possible embodiment, the inner door panel includes an inner panel body, a first flange, and a second flange. The first flange and the second flange are respectively disposed on different sides of the inner panel body in a first direction. The first flange and the second flange are respectively connected to the outer door panel. The first overlapping portion is located on the side of the inner panel body near the first flange, and the first overlapping portion protrudes from the inner panel body in a direction close to the first edging section. The second overlapping portion is located on the side of the inner panel body near the second flange.

[0012] With this configuration, a glass movement channel is formed between the top of the middle part of the inner panel body and the main body of the reinforcing member. The first overlapping part protrudes upward from the inner panel body. The first overlapping part and the first flange are independent and do not affect each other. The height difference between the two can be set as needed. The first flange is directly connected to the outer door panel, and the first overlapping part is connected to the first mounting part. Although a three-layer structure of the first overlapping part, the first mounting part, and the outer door panel is formed at the first overlapping part, the first edge banding section does not cover this area. Therefore, it will not affect the covering thickness of the first edge banding section, so that the first edge banding section only covers the upper side panel.

[0013] In one possible embodiment, the second edge banding section includes a reinforcing member area, a transition area, and an inner plate area connected in sequence. The reinforcing member area covers the side of the upper side plate near the first mounting portion. The transition area corresponds to the position of the reinforcing member notch. The inner plate area covers the first flange. The third edge banding section covers the second flange.

[0014] With this design, the notch in the reinforcing component creates a gap between the upper side panel and the first flange, and the transition area forms a gradually transitioning inclined edge structure, preventing the formation of a stepped edge due to the abrupt change in material thickness between the upper side panel and the first flange, thereby further improving the overall appearance quality of the vehicle.

[0015] In one possible embodiment, the first flange is continuously bent, and the first flange includes a first arc segment and a second arc segment disposed along one side of the second direction, the top of the first arc segment corresponding to the position of the notch of the reinforcing member.

[0016] With this configuration, when the concealed water-cut door edging structure is applied to the rear door, the second edging section is located near the C-pillar, and the third edging section is located near the B-pillar. This shifts the stepped ridge caused by the thickness difference between the inner door panel and the main reinforcement from a critical area corresponding to the outer water-cut to a non-critical area away from the outer water-cut. Furthermore, the connection point between the second and first edging sections is located at a corner near the C-pillar, a continuously curved area with its own height difference. This better absorbs the thickness difference between the inner door panel and the main reinforcement, reducing the number of stepped ridges and improving the overall appearance quality of the vehicle.

[0017] In one possible embodiment, an outer clamping strip mounting plate is further included. The outer clamping strip mounting plate is disposed on the side of the outer panel reinforcement facing the inner door panel, and a gap exists between the top of the outer clamping strip mounting plate and the first edging section in a second direction. With this configuration, the outer clamping strip mounting plate can be used to install an outer waterstop, and the top of the outer clamping strip mounting plate is entirely located below the first edging section, preventing the outer clamping strip mounting plate from affecting the covering thickness of the first edging section.

[0018] In one possible embodiment, in a first direction, the outer clamping strip mounting plate is located between the first mounting portion and the second mounting portion. This arrangement creates a glass movement channel between the outer clamping strip mounting plate and the inner door panel, which can be used for the vertical lifting of the door glass.

[0019] Secondly, this application provides a door assembly including the aforementioned concealed water-cutting door edge-wrapping structure.

[0020] Thirdly, this application provides a vehicle including the aforementioned door assembly.

[0021] The beneficial effects of this application are as follows: This application covers the top of the outer panel reinforcement with the first edge section, and the first edge section and the inner door panel are spaced apart along the second direction. Therefore, there is a gap between the upper edge of the inner door panel and the first edge section in the vertical direction. The top of the outer panel reinforcement provides a flat support surface. After the first edge section is covered on the support surface, the surface of the first edge section is also flat and does not form a stepped edge. The installation position of the first edge section corresponds to that of the outer water cutter, which can ensure a tight fit between the outer water cutter and the first edge section, prevent sealing failure due to the stepped edge, thereby reducing the risk of rainwater leakage and reducing wind noise during driving, improving the sealing performance and appearance quality of the whole vehicle. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application will be described below.

[0023] Figure 1 This is a schematic diagram of the vehicle structure disclosed in the embodiments of this application; Figure 2 This is an exploded view of the concealed water-cutting door edging structure disclosed in the embodiments of this application; Figure 3 This is a schematic diagram of the concealed water-cutting door edge-wrapping structure disclosed in the embodiments of this application; Figure 4 for Figure 3 A magnified view of part A; Figure 5 This is a partially enlarged schematic diagram of the first overlapping portion of the concealed water-cutting door edge-wrapping structure disclosed in the embodiments of this application; Figure 6 This is a cross-sectional schematic diagram of the second edge section of the concealed water-cutting door edge-wrapping structure disclosed in the embodiments of this application; Figure 7 for Figure 3 A magnified view of part B; Figure 8 This is a schematic diagram of the structure of the outer plate reinforcement disclosed in the embodiments of this application; Figure 9 for Figure 8 A magnified view of a portion at point C; Figure 10 for Figure 8 A magnified view of a portion of point D; Figure 11 This is a schematic diagram of the structure of the inner door panel disclosed in an embodiment of this application; Figure 12 for Figure 8 A magnified view of a portion at point E; Figure 13 for Figure 8 A magnified view of a portion of point F.

[0024] Explanation of reference numerals in the attached drawings: 1-Outer door panel, 101-First edging section, 102-Second edging section, 1021-Reinforcing area, 1022-Transition area, 1023-Inner panel area, 103-Third edging section, 104-Edging notch; 2-Outer panel reinforcing member, 201-Reinforcing member body, 2011-Second mounting part, 2012-Reinforcing member notch, 202-Upper side panel, 2021-First mounting part; 3-Inner door panel, 301-Inner panel body, 3011-First overlapping part, 3012-Second overlapping part, 302-First flange, 3021-First arc-shaped section, 3022-Second arc-shaped section, 303-Second flange; 4-Outer trim mounting plate; 5-Vehicle body. Detailed Implementation

[0025] The terms "first," "second," etc., are used for descriptive purposes only and have no sequential or technical meaning, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Directional terms used in this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," are merely for reference to the orientation shown in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate the orientation of the referred device or component in an actual application scenario.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0027] The term "perpendicular" and similar qualifiers are relative to the current technological level, rather than an absolutely strict mathematical definition. Slight deviations are allowed, and approximations of perpendicularity are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 85 and 95 degrees.

[0028] The embodiments of this application are described below with reference to the accompanying drawings.

[0029] Please see Figure 1 , Figure 1This is a schematic diagram of the vehicle structure disclosed in an embodiment of this application. The vehicle can be, but is not limited to, a pure electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), or a new energy vehicle. In this embodiment, the vehicle includes a body 5 and a door assembly. The door assembly can be a rear door, and the door assembly is connected to the body 5 via hinges to enable the door assembly to open and close. The door assembly includes a concealed water-cut door edge structure.

[0030] Please see Figure 2 , Figure 3 , Figure 4 and Figure 7 The concealed water-cutting door edge-wrapping structure includes an outer door panel 1, an outer panel reinforcement 2, and an inner door panel 3. The outer panel reinforcement 2 is located on the side of the outer door panel 1 facing the inner door panel 3. The outer edge of the door panel 1 is provided with an edge-binding structure. The edge-binding structure includes a first edge-binding section 101. The length of the first edge-binding section 101 is set along a first direction. The first edge-binding section 101 covers the top of the outer panel reinforcement 2. The outer panel reinforcing plate has a first mounting part 2021 and a second mounting part 2011 on different sides in the first direction. The top of the inner door panel 3 has a first overlapping part 3011 and a second overlapping part 3012. The first overlapping part 3011 is connected to the first mounting part 2021, and the second overlapping part 3012 is connected to the second mounting part 2011. The first edge section 101 is spaced apart from the inner door panel 3 along the second direction. The first direction and the second direction are perpendicular to each other.

[0031] The first direction is from rear to front, and the second direction is from top to bottom. The concealed water-cutting door edging structure can be applied to the rear door. In this case, the first mounting part 2021 is located on the side near the C-pillar of the vehicle, and the second mounting part 2011 is located on the side near the B-pillar of the vehicle. The thickness of the outer panel reinforcement 2 is greater than the thickness of the inner door panel 3 and the outer door panel 1. For example, the thickness of the outer panel reinforcement 2 can be 1.2mm or greater, and the thickness of the inner door panel 3 and the outer door panel 1 can be any value between 0.6mm and 0.75mm. The first overlapping part 3011 and the first mounting part 2021 can be connected by welding, and the second overlapping part 3012 and the second mounting part 2011 can be connected by welding.

[0032] With this configuration, since the first edge banding segment 101 covers the top of the outer panel reinforcement 2, and the first edge banding segment 101 and the inner door panel 3 are spaced apart along the second direction, there is a gap between the upper edge of the inner door panel 3 and the first edge banding segment 101 in the vertical direction. The top of the outer panel reinforcement 2 provides a flat support surface. After the first edge banding segment 101 covers this support surface, the surface of the first edge banding segment 101 is also flat and does not form a stepped edge. The installation position of the first edge banding segment 101 corresponds to that of the outer water cutter, which can ensure a tight fit between the outer water cutter and the first edge banding segment 101, prevent sealing failure due to the stepped edge, thereby reducing the risk of rainwater leakage and reducing wind noise during driving, improving the overall sealing performance and appearance quality of the vehicle.

[0033] Optional, please refer to Figure 4 , Figure 7 and Figure 8 The external reinforcement includes a reinforcement body 201 and an upper side plate 202. The upper side plate 202 and the reinforcement body 201 are connected sequentially along the second direction. The upper side plate 202 is flat. A second mounting part 2011 is provided on the reinforcement body 201, and a first mounting part 2021 is provided on the upper side plate 202. A reinforcement notch 2012 is provided between the reinforcement body 201 and the first mounting part 2021. A first edge section 101 covers the upper side plate 202. The inner door panel 3 and the reinforcement body 201 are positioned correspondingly and form a glass movement channel between them.

[0034] This design allows uneven structures such as weight-reducing holes and reinforcing ribs to be placed on the main body 201 of the reinforcing member, while the flat upper side plate 202 provides a smooth support surface for the first edge banding section 101. The position of the inner door panel 3 corresponds to the position of the main body 201 of the reinforcing member, so that the inner door panel 3 is located entirely below the first edge banding section 101, preventing the inner door panel 3 from affecting the covering thickness of the first edge banding section 101.

[0035] Optional, please refer to Figures 4-7 The edging structure also includes a second edging section 102 and a third edging section 103; the second edging section 102 and the third edging section 103 are respectively disposed on different sides of the first edging section 101 in a first direction, the top of the second edging section 102 is connected to the first edging section 101, and an edging notch 104 is provided between the top of the third edging section 103 and the first edging section 101.

[0036] With this configuration, when the concealed water-cutting door edging structure is applied to the rear door, the second edging segment 102 is located on the side closer to the C-pillar, and the third edging segment 103 is located on the side closer to the B-pillar. This transfers the stepped ridge caused by the thickness difference between the inner door panel 3 and the reinforcing body 201 from a critical area corresponding to the outer water-cutting edge to a non-critical area away from the outer water-cutting edge. Furthermore, the connection point between the second edging segment 102 and the first edging segment 101 is located at a corner near the C-pillar, which is a continuously curved area with its own height difference. This better absorbs the thickness difference between the inner door panel 3 and the reinforcing body 201, reducing the number of stepped ridges and improving the overall appearance quality of the vehicle.

[0037] Optional, please refer to Figures 11-13 The inner door panel 3 includes an inner panel body 301, a first flange 302, and a second flange 303. The first flange 302 and the second flange 303 are respectively disposed on different sides of the inner panel body 301 in a first direction. The first flange 302 and the second flange 303 are respectively connected to the outer door panel 1. The first overlapping part 3011 is located on the side of the inner panel body 301 near the first flange 302, and the first overlapping part 3011 protrudes from the inner panel body 301 in the direction near the first edge section 101. The second overlapping part 3012 is located on the side of the inner panel body 301 near the second flange 303.

[0038] With this configuration, a glass movement channel is formed between the top of the middle part of the inner panel body 301 and the reinforcing member body 201. The first overlapping part 3011 protrudes upward from the inner panel body 301. The first overlapping part 3011 and the first flange 302 are independent and do not affect each other. The height difference between the two can be set as needed. The first flange 302 is directly connected to the outer door panel 1. The first overlapping part 3011 is connected to the first mounting part 2021. Although a three-layer structure of the first overlapping part 3011, the first mounting part 2021 and the outer door panel 1 are formed at the first overlapping part 3011, the first edge banding section 101 does not cover this area. Therefore, it will not affect the covering thickness of the first edge banding section 101, so that the first edge banding section 101 only covers the upper side panel 202.

[0039] Optional, please refer to Figure 5The second edge-wrapping section 102 includes a reinforcing member area 1021, a transition area 1022, and an inner plate area 1023 connected in sequence. The reinforcing member area 1021 covers the side of the upper side plate 202 near the first mounting part 2021. The transition area 1022 corresponds to the position of the reinforcing member notch 2012. The inner plate area 1023 covers the first flange 302. The third edge-wrapping section 103 covers the second flange 303.

[0040] With this configuration, the reinforcing notch 2012 creates a gap between the upper side panel 202 and the first flange 302, and the transition area 1022 forms a gradually transitioning inclined edge structure, preventing the formation of a stepped ridge due to the abrupt change in material thickness between the upper side panel 202 and the first flange 302, thereby further improving the overall appearance quality of the vehicle.

[0041] Optional, please refer to Figure 11 and Figure 12 The first flange 302 is continuously bent. The first flange 302 includes a first arc segment 3021 and a second arc segment 3022 arranged along one side of the second direction. The top of the first arc segment 3021 corresponds to the position of the reinforcing notch 2012.

[0042] With this configuration, when the concealed water-cutting door edging structure is applied to the rear door, the second edging segment 102 is located on the side closer to the C-pillar, and the third edging segment 103 is located on the side closer to the B-pillar. This transfers the stepped ridge caused by the thickness difference between the inner door panel 3 and the reinforcing body 201 from a critical area corresponding to the outer water-cutting edge to a non-critical area away from the outer water-cutting edge. Furthermore, the connection point between the second edging segment 102 and the first edging segment 101 is located at a corner near the C-pillar, which is a continuously curved area with its own height difference. This better absorbs the thickness difference between the inner door panel 3 and the reinforcing body 201, reducing the number of stepped ridges and improving the overall appearance quality of the vehicle.

[0043] Optional, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 7 The concealed water-cutting door edging structure also includes an outer clamping strip mounting plate 4, which is located on the side of the outer panel reinforcement 2 facing the inner door panel 3. There is a gap between the top of the outer clamping strip mounting plate 4 and the first edging section 101 in the second direction.

[0044] With this configuration, the outer clamping strip mounting plate 4 can be used to install the outer water cutter. The top of the outer clamping strip mounting plate 4 is located entirely below the first edge banding section 101 to prevent the outer clamping strip mounting plate 4 from affecting the covering thickness of the first edge banding section 101.

[0045] Optionally, in the first direction, the outer clamping strip mounting plate 4 is located between the first mounting portion 2021 and the second mounting portion 2011. With this arrangement, a glass movement channel is formed between the outer clamping strip mounting plate 4 and the inner door panel 3, which can be used for the vertical lifting of the door glass.

[0046] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this application still fall within the scope of this application.

Claims

1. A concealed water-cutting door edging structure, characterized in that: It includes an outer door panel (1), an outer panel reinforcement (2), and an inner door panel (3), wherein the outer panel reinforcement (2) is disposed on the side of the outer door panel (1) facing the inner door panel (3); The outer edge of the door panel (1) is provided with an edge-wrapping structure, the edge-wrapping structure includes a first edge-wrapping section (101), the length of the first edge-wrapping section (101) is set along a first direction, and the first edge-wrapping section (101) covers the top of the outer panel reinforcement (2); The outer panel reinforcing plate is provided with a first mounting part (2021) and a second mounting part (2011) on different sides in the first direction. The top of the inner door panel (3) is provided with a first overlapping part (3011) and a second overlapping part (3012). The first overlapping part (3011) is connected to the first mounting part (2021), and the second overlapping part (3012) is connected to the second mounting part (2011). The first edge banding section (101) is spaced apart from the inner door panel (3) along the second direction. The first direction and the second direction are perpendicular to each other.

2. The concealed water-cutting door edging structure according to claim 1, characterized in that: The external reinforcement includes a reinforcement body (201) and an upper side plate (202). The upper side plate (202) and the reinforcement body (201) are connected sequentially along the second direction. The upper side plate (202) is flat. The second mounting part (2011) is disposed on the reinforcement body (201), and the first mounting part (2021) is disposed on the upper side plate (202). A reinforcement notch (2012) is provided between the reinforcement body (201) and the first mounting part (2021). The first edge-covering section (101) covers the upper side plate (202). The inner door panel (3) is positioned opposite to the reinforcement body (201), and a glass movement channel is formed between them.

3. The concealed water-cutting door edging structure according to claim 2, characterized in that: The edging structure further includes a second edging section (102) and a third edging section (103); the second edging section (102) and the third edging section (103) are respectively disposed on different sides of the first edging section (101) in a first direction, the top of the second edging section (102) is connected to the first edging section (101), and an edging notch (104) is provided between the top of the third edging section (103) and the first edging section (101).

4. The concealed water-cutting door edging structure according to claim 3, characterized in that: The inner panel (3) of the car door includes an inner panel body (301), a first flange (302) and a second flange (303). The first flange (302) and the second flange (303) are respectively disposed on different sides of the inner panel body (301) in a first direction. The first flange (302) and the second flange (303) are respectively connected to the outer panel (1) of the car door. The first overlapping part (3011) is located on the side of the inner panel body (301) close to the first flange (302), and the first overlapping part (3011) protrudes from the inner panel body (301) in the direction close to the first edge section (101). The second overlapping part (3012) is located on the side of the inner panel body (301) close to the second flange (303).

5. The concealed water-cutting door edging structure according to claim 4, characterized in that: The second edge-binding section (102) includes a reinforcing member area (1021), a transition area (1022), and an inner plate area (1023) connected in sequence. The reinforcing member area (1021) covers the side of the upper side plate (202) near the first mounting part (2021). The transition area (1022) corresponds to the position of the reinforcing member notch (2012). The inner plate area (1023) covers the first flange (302). The third edge-binding section (103) covers the second flange (303).

6. The concealed water-cutting door edging structure according to claim 5, characterized in that: The first flange (302) is continuously bent. The first flange (302) includes a first arc segment (3021) and a second arc segment (3022) arranged along one side of the second direction. The top of the first arc segment (3021) corresponds to the position of the reinforcing notch (2012).

7. The concealed water-cutting door edging structure according to claim 1, characterized in that: It also includes an outer clamping strip mounting plate (4), which is disposed on the side of the outer panel reinforcement (2) facing the inner panel (3) of the door, and there is a gap between the top of the outer clamping strip mounting plate (4) and the first edge banding section (101) in a second direction.

8. The concealed water-cutting door edging structure according to claim 7, characterized in that: In the first direction, the outer clamping strip mounting plate (4) is located between the first mounting part (2021) and the second mounting part (2011).

9. A vehicle door assembly, characterized in that: Including the concealed water-cutting door edging structure as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the door assembly as described in claim 9.

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