Vehicle body rear column gutter channel structure

By setting an extended edge at the intersection of the column flow trough structure behind the vehicle body, the problem of poor sealing effect caused by the mouse hole is solved, and a better sealing effect is achieved.

CN223253093UActive Publication Date: 2025-08-22ZHEJIANG LEAPMOTOR TECH CO LTD
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Patent Information

Application Number
CN202422896498.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-08-22
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The existing rear column flow tank structure of the car body has a mouse hole, resulting in poor sealing effect of the car body.

Method used

An extended edge is provided at the intersection of the upper section of the rear flow tank, the top cover and the side enclosure outer plate to seal the gap and improve the sealing effect.

Benefits of technology

By setting up extension sides, the gap is effectively blocked and the sealing performance of the car body is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile body rear column gutter channel structure, and relates to the technical field of automobile manufacturing. The rear gutter channel upper section plate comprises a first connecting edge and a second connecting edge which are connected with each other, and further comprises an extending edge arranged at the joint of the first connecting edge and the second connecting edge, and a top cover connected with the first connecting edge; the side wall outer plate is provided with a first turnup and a second turnup which are connected with each other, and the first turnup is connected with the second connecting edge; the second flanging is connected with the top cover below the top cover and forms an intersection, and the extending edge is arranged below the intersection and is connected with the second flanging. The extending edge is arranged at the intersection of the rear gutter channel upper section plate, the top cover and the side wall outer plate, so that a gap is blocked, and the sealing effect of an automobile body is improved.
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Description

Technical Field

[0001] The present application relates to the field of automobile manufacturing technology, and in particular to a water trough structure of a rear pillar of a vehicle body. Background Art

[0002] The existing rear pillar water channel structure of the vehicle body has gaps commonly known as "rat holes", and the existence of rat holes will lead to poor sealing effect of the vehicle body. Summary of the Invention

[0003] One of the embodiments of the present application provides a water channel structure of a rear pillar of a vehicle body, including: an upper section plate of the rear water channel, including a first connecting edge and a second connecting edge connected to each other, and also including an extended edge arranged at the connection between the first connecting edge and the second connecting edge, a top cover, connected to the first connecting edge; a side outer panel, having a first flange and a second flange connected to each other, the first flange being connected to the second connecting edge; the second flange being connected to the top cover below the top cover to form an intersection, the extended edge being placed below the intersection and connected to the second flange.

[0004] In a further embodiment, the top cover includes a rear folding edge, the rear folding edge is connected to the first connecting edge and is spaced apart from the second flange, and the extended edge portion is located in the spacing area between the rear folding edge and the second flange.

[0005] In a further embodiment, a portion of the extension edge close to the connection between the first connecting edge and the second connecting edge is provided with a protrusion on a side close to the top cover, and the protrusion is at least partially located in the spacing area.

[0006] In a further embodiment, a clearance groove is provided on the extension edge at a side away from the top cover and at a position corresponding to the protrusion.

[0007] A further embodiment is that the top cover includes a side fold, the side fold is connected to the rear fold and to the second flange, a portion of the side fold corresponding to the spacing area is provided with a notch, and the extended edge portion is located in the notch.

[0008] A further embodiment is that the side panel outer panel includes a side panel main body, the first flange and the second flange are arranged around the edge of the side panel main body and are connected to the side panel main body, the second flange includes a first bending portion and a second bending portion, the first bending portion connects the side panel main body and the second bending portion, the second bending portion is located below the top cover and is spaced apart from the top cover, and the spacing area is formed between the second flange, and the second bending portion is connected to the extension edge.

[0009] A further embodiment is that the top cover includes a main body, the side folding edges and the rear folding edges are arranged around the edge of the main body and connected to the main body, the side folding edges are connected to the first bending portion, and the second bending portion is located below the main body and is spaced apart from the main body.

[0010] In a further embodiment, the second connecting edge is partially connected to a side of the first bending portion away from the side folding edge.

[0011] A further embodiment is that the first connecting edge is located below the rear folding edge.

[0012] A further embodiment is that the upper section plate of the rear water flow trough may include a main body, the first connecting edge and the second connecting edge are arranged around the edge of the main body and connected to the main body, the outer side surface of the second connecting edge is connected to the inner side surface of the first flange, and a protruding portion located on the outer side surface of the second connecting edge is provided between the first flange and the main body.

[0013] The present application adopts the above-mentioned technical solution. By setting an extended edge at the intersection of the upper plate of the rear water trough, the top cover and the side outer panel, the present application achieves the blocking of the gap and improves the sealing effect of the automobile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the water trough structure of the rear pillar of the vehicle body in some embodiments of the present application.

[0015] Figure 2 for Figure 1 The schematic diagram of the water channel structure of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown.

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the water channel structure of the rear pillar of the vehicle body in another perspective in the embodiment shown.

[0017] Figure 4 for Figure 1 The schematic diagram of the structure of the water channel structure of the rear pillar of the vehicle body in the embodiment shown is a schematic diagram of the structure from another perspective.

[0018] Figure 5 for Figure 4 The cross-sectional view of the water channel structure of the rear pillar of the vehicle body at line V-V in the embodiment shown is shown.

[0019] Figure 6 for Figure 4 The cross-sectional view of the water channel structure of the rear pillar of the vehicle body at line VI-VI in the embodiment shown is shown.

[0020] Figure 7 for Figure 1The schematic diagram of the water channel structure of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown.

[0021] Figure 8 for Figure 7 A partial enlarged view of the water channel structure of the rear pillar of the vehicle body in the embodiment shown,

[0022] Figure 9 for Figure 7 The schematic diagram of the water channel structure of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown.

[0023] Figure 10 for Figure 9 The cross-sectional view of the water channel structure of the rear pillar of the vehicle body at line X-X in the embodiment shown is shown. DETAILED DESCRIPTION

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this application. For those of ordinary skill in the art, without inventive work, this application can also be applied to other similar scenarios based on these drawings. Unless otherwise apparent from the language context or otherwise specified, the same reference numerals in the figures represent the same structure or operation.

[0025] This application describes a water channel structure for the rear pillar of a vehicle body. Figure 1 , Figure 1 This is a schematic diagram of the structure of the water channel structure of the rear pillar of the vehicle body in some embodiments of this application. Figure 1 The dotted arrow in the figure shows that the water flows on the water channel structure 100 of the rear pillar of the vehicle body and finally pours onto the ground.

[0026] See also Figure 1 The rear pillar water channel structure 100 may include an upper rear water channel plate 10, a top cover 20, and side outer panels 30. The upper rear water channel plate 10, top cover 20, and side outer panels 30 are interconnected in pairs. Of course, the rear pillar water channel structure 100 is not limited to the upper rear water channel plate 10, top cover 20, and side outer panels 30, but may also include other components, depending on the vehicle model. In some scenarios, the rear pillar water channel structure 100 may also include a rear combination lamp mounting plate, a rear outer panel, or a deflector.

[0027] The rear gutter upper section 10 and the side outer panels 30 are both located on the sides of the vehicle body. The roof 20 is located on top of the vehicle body. In some embodiments, the vehicle body rear pillar gutter structure 100 may also include a rear outer panel (not shown). The rear outer panel may be connected to the rear gutter upper section 10 and the roof 20, respectively. The rear outer panel is located at the rear of the vehicle body. The rear gutter upper section 10 is located between the side outer panels 30 and the rear outer panel, thereby connecting the side outer panels 30 and the rear outer panel.

[0028] See also Figure 2 、 Figure 3 and Figure 4 , Figure 2 for Figure 1 The schematic diagram of the structure of the water channel structure 100 of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown. Figure 3 for Figure 1 The structural diagram of the rear pillar water channel structure 100 of the vehicle body in the embodiment shown is from another perspective. Figure 4 for Figure 1 The following is a schematic diagram of the structure of the rear pillar water channel structure 100 of the vehicle body in another embodiment. The upper section of the rear water channel plate 10 may include a main body 11, a first connecting edge 12, a second connecting edge 13, and an extended edge 14. The first connecting edge 12 and the second connecting edge 13 may be connected and may be arranged around the edge of the main body 11, and the extended edge 14 may be arranged at the junction of the first connecting edge 12 and the second connecting edge 13. In some embodiments, the main body 11, the first connecting edge 12, the second connecting edge 13, and the extended edge 14 may be integrally formed from a sheet material.

[0029] The first connecting edge 12 may be located at the top of the main body 11, and may be bent and extended from the connection portion with the main body 11 to the side close to the top cover 20, and extend to the position connected to the top cover 20. In some embodiments, the first connecting edge 12 may be bent and arranged to the side close to the inside of the vehicle body. In some embodiments, the first connecting edge 12 may be welded to the top cover 20, and of course, it may be connected by other means, such as automobile manufacturing technology well known to those skilled in the art, which will not be described in detail. In some embodiments, the first connecting edge 12 may extend to the bottom of the top cover 20 to achieve connection with the top cover 20. In some embodiments, the outer side surface of the first connecting edge 12 may be connected to the inner side surface of the top cover 20.

[0030] The second connecting edge 13 may be located in front of the main body 11 and may be bent and extended from the connection portion with the main body 11 to a position connected to the side outer panel 30. In some embodiments, the second connecting edge 13 may be bent toward the side facing away from the interior of the vehicle body. In some embodiments, the second connecting edge 13 may be welded to the side outer panel 30. Of course, the connection may also be made by other means, such as automobile manufacturing techniques well known to those skilled in the art, which will not be described in detail. In some embodiments, the second connecting edge 13 may be located on the side of the side outer panel 30 close to the interior of the vehicle body to achieve connection with the side outer panel 30. In some embodiments, the outer side surface of the second connecting edge 13 may be connected to the inner side surface of the side outer panel 30.

[0031] The extended edge 14 can be set at the connection between the upper section plate 10 of the rear water trough, the top cover 20 and the side outer panel 30, and can seal the gap at the intersection of the upper section plate 10 of the rear water trough, the top cover 20 and the side outer panel 30, thereby improving the sealing effect of the automobile body.

[0032] The extended edge 14 can be connected to the side outer panel 30 and can be mated with the top cover 20. In some embodiments, the extended edge 14 can be welded to the first connecting edge 12 and the second connecting edge 13. In some embodiments, the extended edge 14 can be formed by extending the first connecting edge 12 and / or the second connecting edge 13. In some embodiments, the outer side of the extended edge 14 can be connected to the inner side of the side outer panel 30.

[0033] See also Figure 2 、 Figure 3 and Figure 4 The top cover 20 may include a body 21, a rear fold 22, and side folds 23. The rear fold 22 and the side folds 23 may be connected and may be arranged around the edge of the body 21. In some embodiments, the body 21, the rear fold 22, and the side folds 23 may be integrally formed from a plate.

[0034] The rear folding edge 22 can be located at the rear of the main body 21 and can be bent and extended from the connection portion with the main body 21 and extend to a position where the side is connected to the upper section plate 10 of the rear water trough, such as the first connecting edge 12. In some embodiments, the rear folding edge 22 can be bent downward and can be connected to the upper section plate 10 of the rear water trough, such as the first connecting edge 12, at the side. In some embodiments, the rear folding edge 22 can cooperate with the rear outer panel. In some embodiments, the rear folding edge 22 can be welded to the upper section plate 10 of the rear water trough, such as the first connecting edge 12. Of course, it can also be connected by other means, such as automobile manufacturing technology well known to those skilled in the art, which will not be repeated here. In some embodiments, the rear folding edge 22 can be located above the upper section plate 10 of the rear water trough, such as the first connecting edge 12, to achieve connection with the upper section plate 10 of the rear water trough, such as the first connecting edge 12. In some embodiments, the inner side of the rear folding edge 22 can be connected to the outer side of the upper section plate 10 of the rear water trough, such as the first connecting edge 12.

[0035] The side fold 23 can be located on the side of the body 21 and can be bent and extended from the connection portion with the body 21 to the position connected to the side outer panel 30. In some embodiments, the side fold 23 can be bent downward. In some embodiments, the side fold 23 can be welded to the side outer panel 30. Of course, it can also be connected by other methods, such as automobile manufacturing technology well known to those skilled in the art, which will not be described in detail. In some embodiments, the side fold 23 can be located above at least a portion of the side outer panel 30 to achieve connection with the side outer panel 30. In some embodiments, the outer side of the side fold 23 can be connected to the outer side of the side outer panel 30.

[0036] See also Figure 2 、 Figure 3 and Figure 4 The side panel outer panel 30 may include a side panel body 31, a first flange 32, and a second flange 33. The first flange 32 and the second flange 33 may be connected and may be disposed around the edge of the side panel body 31. In some embodiments, the body 21, the rear flange 22, and the side flange 23 may be integrally formed from a sheet material.

[0037] The first flange 32 may be located at the rear of the side panel body 31, and may be bent and extended from the connection portion with the side panel body 31, and extend to a position where it is connected to the upper section plate 10 of the rear water trough, such as the second connecting edge 13. In some embodiments, the first flange 32 may be bent toward the side closer to the inside of the vehicle body to match the upper section plate 10 of the rear water trough, such as the second connecting edge 13. In some embodiments, the first flange 32 may be welded to the upper section plate 10 of the rear water trough, such as the second connecting edge 13. Of course, the connection may also be made in other ways, such as automobile manufacturing technology well known to those skilled in the art, which will not be elaborated here. In some embodiments, the first flange 32 may be located at the rear of the second connecting edge 13 to achieve connection with the upper section plate 10 of the rear water trough, such as the second connecting edge 13. In some embodiments, the inner side of the first flange 32 may be connected to the outer side of the second connecting edge 13.

[0038] The second flange 33 may be located above the side panel body 31, and may be bent and extended from the connection portion with the side panel body 31, and extend to a position connected to the top cover 20, such as the side folding edge 23. In some embodiments, the second flange 33 may be bent toward the side closer to the inside of the vehicle body to match the top cover 20, such as the side folding edge 23. In some embodiments, the second flange 33 may be welded to the top cover 20, such as the side folding edge 23, and of course, may be connected in other ways, such as automobile manufacturing technology well known to those skilled in the art, which will not be elaborated here. In some embodiments, the second flange 33 may be located below the top cover 20, to achieve connection with the top cover 20, such as the side folding edge 23. In some embodiments, the inner side of the second flange 33 may be connected to the outer side of the top cover 20, such as the side folding edge 23.

[0039] See also Figure 5 , Figure 5 for Figure 4 A schematic cross-sectional view of the water channel structure 100 of the rear pillar of the vehicle body at line V-V in the illustrated embodiment. The inner side surface of the first flange 32 can be connected to the outer side surface of the second connecting edge 13. A bending portion 131 is provided on the outer side surface of the second connecting edge 13 between the first flange 32 and the main body 11. The bending portion 131 protrudes toward one side of the outer side surface of the bending portion 131 to form a protruding portion 132. An avoidance groove 133 can be formed on the inner side surface of the bending portion 131 at a position corresponding to the protruding portion 132. In some embodiments, the second connecting edge 13 can be formed by a plate through a bending process, and the bending portion 131, the protruding portion 132 and the avoidance groove 133 are formed simultaneously.

[0040] See also Figure 6 , Figure 6 for Figure 4A schematic cross-sectional view of the rear pillar water channel structure 100 of the vehicle body in the illustrated embodiment is taken along line VI-VI. The rear fold 22 can be located at the rear edge of the body 21 and can be bent and extended from the connection portion with the body 21 to a position where it can be laterally connected to the upper rear water channel panel 10, such as the first connecting edge 12. In some embodiments, the rear fold 22 can be bent downward and laterally connected to the upper rear water channel panel 10, such as the first connecting edge 12. In some embodiments, the rear fold 22 can be mated to the rear outer panel. In some embodiments, the rear fold 22 can be welded to the upper rear water channel panel 10, such as the first connecting edge 12. Of course, other connection methods are also possible, such as those familiar to those skilled in the art in automobile manufacturing, which will not be elaborated here. In some embodiments, the rear fold 22 can be located above the upper rear water channel panel 10, such as the first connecting edge 12, to achieve connection with the upper rear water channel panel 10, such as the first connecting edge 12. In some embodiments, the inner side surface of the rear folding edge 22 can be connected to the outer side surface of the upper section plate 10 of the rear gutter, such as the first connecting edge 12 .

[0041] See also Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , Figure 7 for Figure 1 The schematic diagram of the structure of the water channel structure 100 of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown. Figure 8 for Figure 7 The partially enlarged view of the water channel structure 100 of the rear pillar of the vehicle body in the embodiment shown is as follows: Figure 9 for Figure 7 The schematic diagram of the structure of the water channel structure 100 of the rear pillar of the vehicle body in another perspective is shown in the embodiment shown. Figure 10 for Figure 9 A schematic cross-sectional view of the rear pillar water channel structure 100 at line X-X in the illustrated embodiment. In some embodiments, the second flange 33 may be located below the top cover 20, such as the body 21, and may connect with the top cover 20, such as the side fold 23, thereby forming an intersection. The extended edge 14 may be positioned below the intersection and further connected to the second flange 33. In some embodiments, the extended edge 14 may be spaced apart from the top cover 20, such as the body 21. In some embodiments, the outer side of the extended edge 14 may connect with the inner side of the second flange 33.

[0042] In some embodiments, the rear folded edge 22 may be spaced apart from the second flange 33 to form a spaced area. In some embodiments, the extended edge 14 may be partially located within the spaced area between the rear folded edge 22 and the second flange 33. In some embodiments, the extended edge 14 may be provided with a protrusion 1421 on a side near the top cover 20, such as the body 21, near the junction of the first connecting edge 12 and the second connecting edge 13. The protrusion 1421 may be at least partially located within the spaced area between the rear folded edge 22 and the second flange 33.

[0043] In some embodiments, the extension edge 14 may be provided with a clearance groove 1422 on a side facing away from the top cover 20, such as the body 21, and at a position corresponding to the protrusion 1421. In some embodiments, the protrusion 1421 and the clearance groove 1422 cooperate to form a bent portion 142 in the extension edge 14. In some embodiments, the extension edge 14 may include a connecting portion 141 and a bent portion 142, wherein the outer side surface of the connecting portion 141 may be connected to the inner side surface of the second flange 33. In some embodiments, the extension edge 14 may be formed by a sheet material through a bending process, and the connecting portion 141, the protrusion 1421, the clearance groove 1422, and the bent portion 142 are formed simultaneously.

[0044] In some embodiments, a portion of the side fold 23 corresponding to the space between the rear fold 22 and the second flange 33 may be provided with a notch 2301, and the extended edge 14 may be partially located within the notch 2301. In some embodiments, the protrusion 1421 may be at least partially located within the notch 2301. In some embodiments, the bent portion 142 may be at least partially located within the notch 2301.

[0045] In some embodiments, the second flange 33 may include a first bend 331 and a second bend 332. The first bend 331 may connect the side panel body 31 and the second bend 332. The second bend 332 may be located below the top cover 20, such as the body 21, and spaced apart from the top cover 20, such as the body 21, forming a spaced area between the second flange 33. The second bend 332 may connect to the extension edge 14, such as the connecting portion 141.

[0046] In some embodiments, the side fold 23 may be connected to the first bent portion 331. The second bent portion 332 may be located below the top cover 20, such as the side fold 23, and spaced apart from the top cover 20, such as the body 21.

[0047] In some embodiments, the second connecting edge 13 may extend to a side of the first bending portion 331 away from the side folding edge 23 and be connected to the first bending portion 331 .

[0048] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0049] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this application does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0050] In addition, unless expressly stated in the claims, the order of processing elements and sequences, the use of alphanumeric characters, or the use of other names in this application are not intended to limit the order of the processes and methods of this application. Although the above disclosure discusses some embodiments that are currently considered useful through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0051] Similarly, it should be noted that, in order to simplify the description of the present disclosure and thus facilitate understanding of one or more embodiments, the foregoing descriptions of the embodiments of the present disclosure sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of the present disclosure requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of a single embodiment disclosed above.

[0052] In some embodiments, numbers are used to describe the number of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in this application are all approximate values, which may change according to the required characteristics of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0053] Each patent, patent application, patent application disclosure, and other materials, such as articles, books, applications, publications, and documents, cited in this application is hereby incorporated by reference in its entirety. This includes any application history that is inconsistent with or conflicts with the content of this application, as well as any document (currently or subsequently attached to this application) that limits the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials of this application are inconsistent with or conflict with the content of this application, the descriptions, definitions, and / or terminology used in this application will prevail.

[0054] Finally, it should be understood that the embodiments in this application are intended only to illustrate the principles of the embodiments of this application. Other variations may also fall within the scope of this application. Therefore, as examples and not limitations, alternative configurations of the embodiments of this application may be considered consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly introduced and described in this application.

Claims

1. A water channel structure for a rear pillar of a vehicle body, characterized in that: include: The upper section plate of the rear water trough includes a first connecting edge and a second connecting edge connected to each other, and also includes an extension edge provided at the connection between the first connecting edge and the second connecting edge. a top cover connected to the first connecting edge; The side outer panel has a first flange and a second flange connected to each other, the first flange is connected to the second connecting edge; the second flange is connected to the top cover below the top cover to form an intersection, and the extended edge is placed below the intersection and connected to the second flange.

2. The water channel structure of the rear pillar of the vehicle body according to claim 1, characterized in that: The top cover includes a rear folding edge, the rear folding edge is connected to the first connecting edge and is spaced apart from the second flange, and the extension edge portion is located in the spacing area between the rear folding edge and the second flange.

3. The water channel structure of the rear pillar of the vehicle body according to claim 2, characterized in that: A portion of the extension edge close to the connection between the first connecting edge and the second connecting edge is provided with a protrusion on a side close to the top cover, and the protrusion is at least partially located in the spacing area.

4. The water channel structure of the rear pillar of the vehicle body according to claim 3, characterized in that: The extension edge is provided with a clearance groove at a position on a side away from the top cover and corresponding to the protrusion.

5. The water channel structure of the rear pillar of the vehicle body according to claim 2, characterized in that: The top cover includes a side fold, which is connected to the rear fold and the second flange. A portion of the side fold corresponding to the spacing area is provided with a notch, and the extended edge portion is located in the notch.

6. The water channel structure of the rear pillar of the vehicle body according to claim 5, characterized in that: The side panel outer plate includes a side panel body, the first flange and the second flange are arranged around the edge of the side panel body and are connected to the side panel body, the second flange includes a first bent portion and a second bent portion, the first bent portion connects the side panel body and the second bent portion, the second bent portion is located below the top cover and is spaced apart from the top cover, and the spacing area is formed between the second flange, and the second bent portion is connected to the extended edge.

7. The water channel structure of the rear pillar of the vehicle body according to claim 6, characterized in that: The top cover includes a body, the side folds and the rear folds are arranged around the edge of the body and connected to the body, the side folds are connected to the first bending portion, and the second bending portion is located below the body and spaced apart from the body.

8. The water channel structure of the rear pillar of the vehicle body according to claim 6, characterized in that: The second connecting edge is partially connected to a side of the first bending portion away from the side folding edge.

9. The water channel structure of the rear pillar of the vehicle body according to claim 2, characterized in that: The first connecting edge is located below the rear folding edge.

10. The water channel structure of the rear pillar of the vehicle body according to claim 1, characterized in that: The upper section plate of the rear water flow trough may include a main body, the first connecting edge and the second connecting edge are arranged around the edge of the main body and connected to the main body, the outer side surface of the second connecting edge is connected to the inner side surface of the first flange, and a protruding portion located on the outer side surface of the second connecting edge is provided between the first flange and the main body.