Rear door top and side edge sealing strip connecting corner structure and vehicle

Abstract

According to the rear door top and side edge sealing strip connecting corner connecting structure and the vehicle, the corner connecting structure is installed on a vehicle door metal plate of a rear vehicle door, a first sealing strip is arranged on the top of the vehicle door metal plate, a second sealing strip is arranged on the side edge of the vehicle door metal plate, and the corner connecting structure is clamped to the connecting position of the top and the side edge of the vehicle door metal plate; the end, facing the corner connecting structure, of the first sealing strip is punched and then connected with the corner connecting structure through the injection molding technology, and the end, facing the corner connecting structure, of the second sealing strip is punched and then connected with the corner connecting structure through the injection molding technology. The rubber coating lip of the side wall corner window glass located on the same side of the vehicle with the rear vehicle door is in lap joint with the corner connecting structure. The corner connecting structure is fixed to the automobile door metal plate through the clamping limiting structure of the corner connecting structure, so that a coherent integral sealing strip product is formed, the integral sealing effect is achieved, the spigot edge of the metal plate is shielded, the purposes of beautifying the appearance and improving the delicacy are achieved, and the appearance integrity of the sealing strip is effectively beautified through the corner connecting structure.

Description

Technical Field

[0001] The utility model relates to the field of vehicle window sealing structures, and more specifically, to a connecting corner structure between the top and side sealing strips of a rear door and a vehicle. Background Art

[0002] With the rapid development of the automotive industry, the exterior refinement of automobiles has received increasing attention, and the design of using fixed corner window glass on the side rear doors of automobiles has gradually been widely applied. The fixed corner window glass on the side rear door of an automobile is a fixed triangular glass window installed on the side rear door of the automobile, and its main functions are to increase the stability of the vehicle body, improve aesthetics, expand the field of vision, reduce blind spots, and facilitate the lifting and lowering of the window, etc.

[0003] At the same time, a side sealing strip needs to be added between the corner window glass and the side door to achieve sealing and conceal the internal structure to achieve an aesthetic appearance effect. However, due to the existing sealing method having problems such as the discontinuous appearance of the sealing strip and the poor sealing of the corner transition area, the sheet metal stop edge is exposed, which affects the sealing effect and aesthetics. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connecting corner structure between the top and side sealing strips of a rear door and a vehicle, which can increase the consistency and coherence of the overall appearance of the sealing strip, so that the sealing strip transitions continuously from the top to the side.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In a first aspect, a connecting corner structure between the top and side sealing strips of a rear door according to an embodiment of the present application, the connecting corner structure is used to be installed on the door sheet metal of the rear door, a first sealing strip is arranged at the top of the door sheet metal, a second sealing strip is arranged at the side of the door sheet metal, and the connecting corner structure is clamped at the connection between the top and the side of the door sheet metal; the end of the first sealing strip facing the connecting corner structure is punched and then connected to the connecting corner structure through an injection molding process, and the end of the second sealing strip facing the connecting corner structure is punched and then connected to the connecting corner structure through an injection molding process.

[0007] In a possible implementation manner, a first covering structure is arranged at the bottom of the connecting corner structure, a first clamping groove and a first side sealing portion are arranged on the first covering structure; a side door corner window glass assembly, a door inner panel and a window frame reinforcement plate are installed on the door sheet metal, and the bottom of the door inner panel and the bottom of the window frame reinforcement plate are inserted into the first clamping groove along the side edge extending along the top; the first side sealing portion is used to seal and overlap the end of the side door corner window glass assembly extending along the top at the bottom.

[0008] In a possible implementation, a second covering structure is provided in the middle of the corner joint structure, and a first clamping and limiting boss and a second side sealing portion are provided on the second covering structure; the middle portions of the inner door panel and the window frame reinforcement plate along the side extending along the top are located on the first clamping and limiting boss, and the second side sealing portion is used for sealing and lapping the end portion extending along the top in the middle of the side door corner window glass assembly.

[0009] In a possible implementation, a third covering structure is provided at the top of the corner joint structure, and a second clamping and limiting boss is provided on the third covering structure; the sides of the top portions of the inner door panel and the window frame reinforcement plate along the top of the door sheet metal are located on the second clamping and limiting boss.

[0010] In a possible implementation, a bright strip is further installed on the door sheet metal, and the bright strip is hermetically connected to the top of the side door corner window glass assembly; a sealing groove is further provided on the third covering structure, and one side of the bright strip extending along the top of the door sheet metal is hermetically inserted into the sealing groove.

[0011] In a possible implementation, a top sealing portion is further provided at the top of the corner joint structure, and the shape and size of the side of the sealing portion facing the door sheet metal match the first sealing strip to be hermetically connected to the first sealing strip; side sealing portions are provided on the sides of the middle and bottom of the corner joint structure, and the shape and size of the side of the side sealing portion facing the door sheet metal match the second sealing strip to be hermetically connected to the second sealing strip.

[0012] In a possible implementation, the cross section of the first sealing strip is stepped, and the top sealing portion is provided with the same number of sealing surfaces as the side surfaces of the first sealing strip to be hermetically connected to the side surfaces of the first sealing strip.

[0013] In a possible implementation, ribs are provided on the inner side of the corner joint structure facing the door sheet metal, the two ends of the ribs extend up and down along the side direction of the door sheet metal, and a plurality of reinforcing ribs are provided on the ribs along the extending direction thereof.

[0014] In a possible implementation, a first length measurement marking line and a second length measurement marking line are respectively provided at the top and bottom of the inner side of the corner joint structure facing the door sheet metal.

[0015] In a second aspect, a vehicle according to an embodiment of the present application, the vehicle includes a rear door, the rear door includes a door sheet metal, a first sealing strip is provided at the top of the door sheet metal, and a second sealing strip is provided at the side of the door sheet metal; a corner joint structure as described above is snap-connected at the connection between the top and the side of the door sheet metal; the rubber-coated lip of the side wall corner window on the same side of the vehicle as the rear door overlaps with the corner joint structure.

[0016] The beneficial effects of the embodiments of the present utility model are as follows: The corner joint structure is fixed on the vehicle door sheet metal through its own clamping and limiting structure. After the end of the first sealing strip is punched, it is connected to the corner joint through an injection molding process. Similarly, after the end of the second sealing strip is punched, it is connected to the corner joint through an injection molding process, thereby forming a coherent integral sealing strip product, achieving an overall sealing effect and covering the edge of the sheet metal stop to achieve the purpose of beautifying the appearance and improving the refinement. Using a connecting corner joint structure also effectively beautifies the overall appearance of the sealing strip. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is an assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal from the first perspective of the embodiments of the present utility model;

[0019] Figure 2 It is a structural diagram of the connection corner joint structure between the top and side sealing strips of a rear door of the embodiments of the present utility model;

[0020] Figure 3 It is an assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal from the second perspective of the embodiments of the present utility model;

[0021] Figure 4 It is a cross-sectional view taken along the A-A direction in the assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal of the embodiments of the present utility model;

[0022] Figure 5 It is a cross-sectional view taken along the B-B direction in the assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal of the embodiments of the present utility model;

[0023] Figure 6 It is a cross-sectional view taken along the C-C direction in the assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal of the embodiments of the present utility model;

[0024] Figure 7 It is an assembly drawing of the connection corner joint structure between the top and side sealing strips of a rear door and the vehicle door sheet metal from the third perspective of the embodiments of the present utility model.

[0025] Icons: 1. Corner joint structure; 11. First covering structure; 111. First clamping groove; 112. First side sealing part; 113. First overlapping part; 12. Second covering structure; 121. First clamping and limiting boss; 122. Second side sealing part; 123. Second overlapping part; 13. Third covering structure; 131. Second clamping and limiting boss; 132. Bright strip; 133. Sealing groove; 134. Third overlapping part; 14. Top sealing part; 141. Top joint surface; 15. Reinforcing rib; 16. First length measurement marking line; 17. Second length measurement marking line; 18. Side sealing part; 181. Side joint surface; 19. Wrapping surface.

[0026] 2. Door sheet metal; 3. First sealing strip; 4. Second sealing strip; 5. Side door corner window glass assembly; 6. Inner door panel; 7. Window frame reinforcing plate; 8. Side surround corner window glass; 9. Rubberized lip. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] As Figure 1 and Figure 7 shown, a connecting corner structure for connecting the top and side sealing strips of a rear door according to an embodiment of the present application, the connecting corner structure 1 is used to be installed on the door sheet metal 2 of the rear door. A first sealing strip 3 is provided at the top of the door sheet metal 2, and a second sealing strip 4 is provided at the side of the door sheet metal 2. The connecting corner structure 1 is clamped at the connection between the top and the side of the door sheet metal 2. The end of the first sealing strip 3 facing the connecting corner structure 1 is punched and then connected to the connecting corner structure 1 through an injection molding process. The end of the second sealing strip 4 facing the connecting corner structure 1 is punched and then connected to the connecting corner structure 1 through an injection molding process. The rubber-coated lip 9 of the side window glass 8 on the same side of the vehicle as the rear door overlaps with the connecting corner structure 1.

[0034] Combined with the above embodiments, the corner joint structure 1 is fixed on the vehicle door sheet metal 2 through its own clamping and limiting structure. After the end of the first sealing strip 3 (located at the top of the vehicle door sheet metal 2) is punched, it is connected to the corner joint structure 1 through an injection molding process. Similarly, after the end of the second sealing strip 4 (located on the side of the vehicle door sheet metal 2) is punched, it is connected to the corner joint structure 1 through an injection molding process, thus forming a coherent overall sealing strip product, achieving the overall sealing effect and covering the sheet metal stop edge to beautify the appearance and improve the delicacy. Using a single connecting corner joint structure 1 also effectively beautifies the overall appearance of the sealing strip.

[0035] As Figure 3 and Figure 4 shown, for the corner joint structure connecting the top and side sealing strips of the rear door in the embodiment of the present application, a first covering structure 11 is provided at the bottom of the corner joint structure 1, and a first clamping groove 111 and a first side sealing part 112 are provided on the first covering structure 11; a side door corner window glass assembly 5, a vehicle door inner panel 6, and a window frame reinforcement plate 7 are installed on the vehicle door sheet metal 2. The side seals extending along the top at the bottom of the vehicle door inner panel 6 and the window frame reinforcement plate 7 are inserted into the first clamping groove 111; the first side sealing part 112 is used for sealing and overlapping the end extending along the top at the bottom of the side door corner window glass assembly 5. The bottom of the rubber-coated lip 9 of the side window glass 8 overlaps with the first covering structure 11.

[0036] Combined with the above embodiments, as Figure 4 shown, the vehicle door sheet metal 2 is divided into upper, middle, and lower parts from top to bottom. Each part matches the shape and structure at the vehicle door sheet metal 2, so that the corner joint structure 1 can be effectively sealed and clamped on the vehicle door sheet metal 2. A first clamping groove 111 is provided on the first covering structure 11 provided on the inner side surface at the bottom of the corner joint structure 1 (i.e., the inner surface facing the vehicle door panel after the vehicle door sheet metal 2 is installed). The side seals of the vehicle door inner panel 6 and the window frame reinforcement plate 7 relative to the bottom of the first clamping groove 111 are inserted into the first clamping groove 111, thereby realizing the connection between the bottom of the corner joint structure 1 and the vehicle door inner panel 6 and the window frame reinforcement plate 7. A first side sealing part 112 is also integrally provided at the bottom of the first covering structure 11. The first side sealing part 112 extends towards the bottom of the side door corner window glass assembly 5 to seal and overlap on the side door corner window glass assembly 5. A chamfer is provided on one side of the top of the first covering structure 1 facing the rubber-coated lip 9 of the side window glass 8, facilitating the sealing and overlapping of one end of the bottom of the rubber-coated lip 9 of the side window glass 8 here.

[0037] As Figure 3 and Figure 5As shown in the figure, the connecting corner structure between the top and side sealing strips of the rear door in the embodiment of the present application. A second covering structure 12 is provided in the middle of the corner structure 1. A first clamping and limiting boss 121 and a second side sealing part 122 are provided on the second covering structure 12. The side edges extending along the top in the middle of the inner door panel 6 and the middle of the window frame reinforcing plate 7 are located on the first clamping and limiting boss 121. The second side sealing part 122 is used to seal and lap the end extending along the top in the middle of the side door corner window glass assembly 5. The bottom of the rubber-coated lip 9 of the side surround corner window glass 8 laps with the second covering structure 12.

[0038] Combined with the above embodiment, the second covering structure 12 is located in the middle of the corner structure 1. A first clamping and limiting boss 121 is provided on the second covering structure 12. The first clamping and limiting boss 121 is arranged opposite to the top of the second covering structure to form a groove. Correspondingly, the side seals in the middle of the inner door panel 6 and the window frame reinforcing plate 7 extend into this groove, so as to realize the connection between the middle parts of the inner door panel 6 and the window frame reinforcing plate 7 and the corner structure 1. The bottom of the second covering structure 12 is integrally provided with a second side sealing part 122. The second side sealing part 122 extends towards the middle of the side door corner window glass assembly 5 to seal and lap on the side door corner window glass assembly 5. A chamfer is provided on one side of the top of the second covering structure 12 facing the middle of the rubber-coated lip 9 of the side surround corner window glass 8, which is convenient for one end of the middle of the rubber-coated lip 9 of the side surround corner window glass 8 to seal and lap here.

[0039] As Figure 3 and Figure 6 As shown in the figure, the connecting corner structure between the top and side sealing strips of the rear door in the embodiment of the present application. A third covering structure 13 is provided on the top of the corner structure 1. A second clamping and limiting boss 131 is provided on the third covering structure 13. The side edges along the top of the inner door panel 6 and the window frame reinforcing plate 7 on the top of the door sheet metal 2 are located on the second clamping and limiting boss 131. The bottom of the rubber-coated lip 9 of the side surround corner window glass 8 laps with the third covering structure 13.

[0040] Combined with the above embodiment, the third covering structure 13 is located on the top of the corner structure 1. A second clamping and limiting boss 131 is provided on the third covering structure 13. The number of the second clamping and limiting bosses 131 can be two and are arranged along the up and down direction. Each second clamping and limiting boss 131 is arranged opposite to the top of the corresponding third covering structure to form a groove. Correspondingly, the side seals at the top of the inner door panel 6 and the window frame reinforcing plate 7 extend into this groove, so as to realize the connection between the top parts of the inner door panel 6 and the window frame reinforcing plate 7 and the corner structure 1. A chamfer is provided on one side of the top of the third covering structure 1 facing the top of the rubber-coated lip 9 of the side surround corner window glass 8, which is convenient for one end of the top of the rubber-coated lip 9 of the side surround corner window glass 8 to seal and lap here.

[0041] As Figure 3 and Figure 6As shown, for the connection corner structure between the top of the rear door and the side sealing strip in the embodiment of the present application, a bright strip 132 is further installed on the door sheet metal 2, and the bright strip 132 is hermetically connected to the top of the side door corner window glass assembly 5; a sealing groove is further provided on the third covering structure 13, and one side of the bright strip 132 extending along the top of the door sheet metal 2 is hermetically inserted into the sealing groove 133.

[0042] Combined with the above embodiments, the bright strip 132 is connected to the side door corner window glass assembly 5, a sealing groove 133 is provided on the side of the bottom of the third covering structure 13, and one end of the bright strip 132 is hermetically extended into the sealing groove 133, so as to be connected to the third covering structure 13, thereby realizing the connection to the top of the side door corner window glass assembly 5.

[0043] As Figure 1 、 Figure 5 and Figure 7 shown, for the connection corner structure between the top of the rear door and the side sealing strip in the embodiment of the present application, a top sealing portion 14 is further provided on the top of the corner structure 1, and the shape and size of the side of the top sealing portion 14 facing the door sheet metal 2 match those of the first sealing strip 3, so as to be hermetically connected to the first sealing strip 3. Side sealing portions 18 are provided on the sides of the middle and bottom of the corner structure 1, and the shape and size of the side of the side sealing portion 18 facing the door sheet metal 2 match those of the second sealing strip 4, so as to be hermetically connected to the second sealing strip 4.

[0044] Combined with the above embodiments, the cross-section of the first sealing strip 3 is stepped, and the top sealing portion 14 is provided with top joint surfaces 141 having the same number as the sides of the first sealing strip 3, so as to be hermetically connected to the sides of the first sealing strip 3. A wrapping surface 19 is further provided on the corner structure 1, and the shape and size of the wrapping surface 19 match those of the door sheet metal 2, and a side joint surface 181 is provided at the bottom of the corner structure 1 for fitting with the bottom of the door sheet metal 2, so that the corner structure 181 is exactly assembled on the door sheet metal 2.

[0045] For the connection corner structure between the top of the rear door and the side sealing strip in the embodiment of the present application, ribs are provided on the inner side of the corner structure 1 facing the door sheet metal 2, both ends of the ribs extend up and down along the side direction of the door sheet metal 2, and a plurality of reinforcing ribs 15 are provided along the extending direction of the ribs, which plays a role in increasing the overall strength of the corner structure 1.

[0046] As Figure 6 shown, for the connection corner structure between the top of the rear door and the side sealing strip in the embodiment of the present application, a first length measurement marking line 16 and a second length measurement marking line 17 are respectively provided on the top and bottom of the corner structure 1 facing the inner side of the door sheet metal 2, and the first length measurement marking line 16 and the second length measurement marking line 17 are respectively provided on the top and bottom of the corner structure 1, providing a reference for measuring the lengths of the first sealing strip 3 and the second sealing strip 4 respectively.

[0047] Based on the same inventive concept, an embodiment of the present application also provides a vehicle corresponding to the connection corner structure between the top and side sealing strips of the rear door. Since the principle of solving problems of the vehicle in the embodiment of the present application is similar to that of the above-mentioned connection corner structure between the top and side sealing strips of the rear door in the embodiment of the present application, the implementation of the vehicle can refer to the implementation of the connection corner structure between the top and side sealing strips of the rear door, and the repeated parts will not be described again.

[0048] A vehicle according to an embodiment of the present application, the vehicle includes a rear door, the rear door includes a door sheet metal 2, a first sealing strip 3 is provided at the top of the door sheet metal 2, and a second sealing strip 4 is provided at the side of the door sheet metal 2. The above-mentioned connection corner structure 1 is snap-fitted at the connection between the top and the side of the door sheet metal 2. The end of the first sealing strip 3 facing the connection corner structure 1 is punched and then connected to the connection corner structure 1 through an injection molding process, and the end of the second sealing strip 4 facing the connection corner structure 1 is punched and then connected to the connection corner structure 1 through an injection molding process. The rubber-coated lip 9 of the side surround corner window glass 8 on the same side of the vehicle as the rear door overlaps with the connection corner structure 1.

[0049] Combined with the above embodiments, a connection corner structure 1 is provided on the vehicle door. The connection corner structure 1 is fixed on the door sheet metal 2 through its own snap-fitting and limiting structure. After the end of the first sealing strip 3 is punched, it is connected to the connection corner through an injection molding process. Similarly, after the end of the second sealing strip 4 is punched, it is connected to the connection corner through an injection molding process, thereby forming a coherent overall sealing strip product, achieving the overall sealing effect and covering the sheet metal stop edge to beautify the appearance and improve the delicacy. Using one connection corner structure also effectively beautifies the overall appearance of the sealing strip.

[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A connecting corner structure for the connection between the top and side sealing strips of a rear door, characterized in that, The corner joint structure is used to be installed on the door sheet metal of the rear door. A first sealing strip is provided at the top of the door sheet metal, and a second sealing strip is provided at the side of the door sheet metal. The corner joint structure is clamped at the connection between the top and the side of the door sheet metal. The end of the first sealing strip facing the corner joint structure is punched and then connected to the corner joint structure through an injection molding process. The end of the second sealing strip facing the corner joint structure is punched and then connected to the corner joint structure through an injection molding process.

2. The connecting corner structure of the back door top and side sealing strip according to claim 1, characterized in that, A first covering structure is provided at the bottom of the corner joint structure. A first clamping groove and a first side sealing portion are provided on the first covering structure. A side door corner window glass assembly, a door inner panel and a window frame reinforcement plate are installed on the door sheet metal. The bottom of the door inner panel and the bottom of the window frame reinforcement plate along the side extending along the top are hermetically inserted into the first clamping groove. The first side sealing portion is used to hermetically lap the end of the side door corner window glass assembly extending along the top.

3. The connecting corner structure of the back door top and side sealing strips according to claim 2, characterized in that A second covering structure is provided in the middle of the corner joint structure. A first clamping and limiting boss and a second side sealing portion are provided on the second covering structure. The middle parts of the door inner panel and the window frame reinforcement plate along the side extending along the top are located on the first clamping and limiting boss. The second side sealing portion is used to hermetically lap the end of the side door corner window glass assembly extending along the top in the middle.

4. The connecting corner structure of the back door top and side sealing strips according to claim 2, characterized in that, A third covering structure is provided at the top of the corner joint structure. A second clamping and limiting boss is provided on the third covering structure. The tops of the door inner panel and the window frame reinforcement plate along the side of the top of the door sheet metal are located on the second clamping and limiting boss.

5. The connecting corner structure of the back door top and side sealing strips according to claim 4, characterized in that A bright strip is also installed on the door sheet metal. The bright strip is hermetically connected to the top of the side door corner window glass assembly. A sealing groove is also provided on the third covering structure. One side of the bright strip extending along the top of the door sheet metal is hermetically inserted into the sealing groove.

6. The connecting corner structure of the back door top and side sealing strips according to claim 1, characterized in that, A top sealing portion is also provided at the top of the corner joint structure. The shape and size of the side of the top sealing portion facing the door sheet metal match the first sealing strip to hermetically connect with the first sealing strip. Side sealing portions are provided at the sides of the middle and bottom of the corner joint structure. The shape and size of the sides of the side sealing portions facing the door sheet metal match the second sealing strip to hermetically connect with the second sealing strip.

7. The connection corner structure between the back door top and the side sealing strip according to claim 6, characterized in that, The cross section of the first sealing strip is stepped. The top sealing portion is provided with the same number of sealing surfaces as the side of the first sealing strip to hermetically connect with the side of the first sealing strip.

8. The connection corner structure between the back door top and the side sealing strip according to claim 1, characterized in that, Ribs are provided on the inner side of the corner joint structure facing the door sheet metal. The two ends of the ribs extend up and down along the side direction of the door sheet metal. A plurality of reinforcing ribs are provided on the ribs along their extending direction.

9. The connecting corner structure of the back door top and side sealing strip according to claim 1, characterized in that, A first length measurement marking line and a second length measurement marking line are respectively provided at the top and bottom of the inner side of the corner joint structure facing the door sheet metal.

10. A vehicle, characterized in that, The vehicle includes a rear door, the rear door includes a door sheet metal, a first sealing strip is arranged at the top of the door sheet metal, and a second sealing strip is arranged at the side of the door sheet metal; a corner joint structure as described in any one of claims 1 to 9 is snap-connected to the connection between the top and the side of the door sheet metal; a side surround corner window glass on the same side of the vehicle as the rear door overlaps with the corner joint structure.

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