Vehicle side connection structure and vehicle

Abstract

The present application discloses a vehicle side panel connection structure, comprising a top side beam inner plate and a top side beam reinforcement plate fixedly connected to the top side beam inner plate, a C-ring upper connector, a transverse reinforcement, a D-pillar inner plate, and a D-pillar reinforcement plate; the top side beam inner plate and the top side beam reinforcement plate enclose a top side beam cavity, the top side beam inner plate and the C-ring upper connector enclose a C-ring cavity, the top side beam inner plate and the transverse reinforcement form a transverse reinforcement cavity, the top side beam inner plate, the D-pillar inner plate, and the D-pillar reinforcement plate enclose a D-pillar cavity; the top side beam cavity is adjacent to the C-ring cavity, the C-ring cavity is adjacent to the transverse reinforcement cavity, the transverse reinforcement cavity is adjacent to the D-pillar cavity, and the D-pillar cavity is adjacent to the top side beam cavity; the outer wall of the top side beam cavity, the outer wall of the C-ring cavity, the outer wall of the transverse reinforcement cavity, and the outer wall of the D-pillar cavity enclose an annular reinforcement portion. The vehicle side panel connection structure of the present application can significantly improve the torsional stiffness of the vehicle body, thereby improving the NVH performance of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a vehicle side panel connection structure and an automobile. Background Art

[0002] The vehicle's side panel connection is an integral part of the vehicle's sidewalls. It supports the roof and connects the front and rear sections of the vehicle, making it a crucial component of the cabin. The torsional stiffness of the vehicle's side panel connection largely determines the torsional stiffness of the entire vehicle. Low torsional stiffness of the vehicle's side panel connection can easily lead to torsional deformation during driving, thus affecting the vehicle's NVH performance.

[0003] In the prior art, it is difficult to improve the torsional stiffness and torsional mode of the vehicle side panel connection structure. In order to improve the torsional stiffness and torsional mode of the vehicle side panel connection structure, a large number of reinforcing parts need to be added, which is very costly. Summary of the Invention

[0004] The present application provides a vehicle side connection structure and a vehicle, which can significantly improve the torsional stiffness of the vehicle body, thereby improving the NVH performance of the vehicle.

[0005] In one aspect, the present application provides a vehicle side panel connection structure, comprising a roof side member inner plate, a roof side member reinforcement plate, a C-ring upper connector, a transverse reinforcement member, a D-pillar inner plate, and a D-pillar reinforcement plate;

[0006] The top side beam inner plate is respectively fixedly connected to the top side beam reinforcement plate, the C-ring upper connector, the transverse reinforcement, the D-pillar inner plate and the D-pillar reinforcement plate;

[0007] The top side beam inner plate and the top side beam reinforcement plate enclose a top side beam cavity, the top side beam inner plate and the C-ring upper connector enclose a C-ring cavity, the top side beam inner plate and the transverse reinforcement member enclose a transverse reinforcement cavity, and the top side beam inner plate, the D-pillar inner plate and the D-pillar reinforcement plate enclose a D-pillar cavity;

[0008] The top side beam cavity is arranged adjacent to the C-ring cavity, the C-ring cavity is arranged adjacent to the transverse reinforcement cavity, the transverse reinforcement cavity is arranged adjacent to the D-pillar cavity, and the D-pillar cavity is arranged adjacent to the top side beam cavity. The outer wall of the top side beam cavity, the outer wall of the C-ring cavity, the outer wall of the transverse reinforcement cavity and the outer wall of the D-pillar cavity form an annular reinforcement portion.

[0009] Furthermore, a rear corner window connection position is provided on the inner plate of the top side beam, and the upper connecting member of the C ring is fixedly connected to the side of the rear corner window connection position on the inner plate of the top side beam away from the C-pillar.

[0010] Furthermore, the top side beam reinforcement plate and the D-pillar reinforcement plate are respectively fixedly connected to the outer side of the top side beam inner plate, and the top side beam reinforcement plate and the D-pillar reinforcement plate are fixedly connected;

[0011] The C-ring upper connector, the transverse reinforcement and the D-pillar inner plate are respectively fixedly connected to the inner side of the top side beam inner plate, and the transverse reinforcement is fixedly connected between the C-ring upper connector and the D-pillar inner plate.

[0012] Furthermore, the roof side beam inner plate includes a first end portion and a second end portion arranged along the vehicle body height direction, and the first end portion and the second end portion are arranged opposite to each other;

[0013] The D-pillar cavity is arranged on a side of the first end away from the second end, and the first end is arranged between the D-pillar reinforcement plate and the D-pillar inner plate;

[0014] The D-pillar reinforcement plate is fixedly connected to the outer side of the first end portion, and the D-pillar inner plate is fixedly connected to the inner side of the first end portion.

[0015] Furthermore, at the adjacent end of the top side beam cavity and the C-ring cavity, the top side beam inner plate is provided between the top side beam reinforcement plate and the C-ring upper connector;

[0016] A second top side beam reinforcement plate connection position is provided on the outer side of the top side beam inner plate, and a C-ring upper connector connection position is provided on the inner side of the top side beam inner plate; the top side beam reinforcement plate is fixedly connected to the second top side beam reinforcement plate connection position, and the C-ring upper connector is fixedly connected to the C-ring upper connector connection position.

[0017] Furthermore, at the adjacent ends of the C-ring cavity and the transverse reinforcement cavity, the C-ring upper connector is provided between the top side beam inner plate and the transverse reinforcement;

[0018] A third top side beam inner plate connection position is provided on the outer side of the C-ring upper connecting piece, and a second transverse reinforcement connection position is provided on the inner side of the C-ring upper connecting piece; the top side beam inner plate is fixedly connected to the third top side beam inner plate connection position, and the transverse reinforcement is fixedly connected to the second transverse reinforcement connection position.

[0019] Furthermore, at the adjacent end of the D-pillar cavity and the transverse reinforcement cavity, the D-pillar inner plate is arranged between the transverse reinforcement and the top side beam inner plate;

[0020] A second top side beam inner panel connection position is provided on the outer side of the D-pillar inner panel, and a first transverse reinforcement connection position is provided on the inner side of the D-pillar inner panel; the top side beam inner panel is fixedly connected to the second top side beam inner panel connection position, and the transverse reinforcement is fixedly connected to the first transverse reinforcement connection position.

[0021] Furthermore, at the adjacent end of the D-pillar cavity and the roof side beam cavity, the D-pillar reinforcement plate is provided between the roof side beam reinforcement plate and the roof side beam inner plate;

[0022] A first top side beam reinforcement plate connection position is provided on the outer side of the D-pillar reinforcement plate, and a first top side beam inner plate connection position is provided on the inner side of the D-pillar reinforcement plate; the top side beam reinforcement plate is fixedly connected to the first top side beam reinforcement plate connection position, and the top side beam inner plate is fixedly connected to the first top side beam inner plate connection position.

[0023] Furthermore, the D-pillar inner panel includes a D-pillar upper inner panel and a D-pillar lower inner panel;

[0024] The D-pillar upper inner plate is fixedly connected to the top side beam reinforcement plate and the top side beam inner plate respectively;

[0025] The D-pillar lower inner plate is fixedly connected to the top side beam inner plate and the transverse reinforcement respectively.

[0026] Furthermore, the outer wall of the D-pillar cavity away from the top side beam cavity is fixedly connected to the rear enclosure assembly, and the outer wall of the C-ring cavity away from the top side beam cavity is fixedly connected to the floor crossbeam assembly.

[0027] On the other hand, the present application provides a car, comprising the vehicle side connection structure as described in any one of the above.

[0028] The vehicle side panel connection structure and the vehicle provided in this application have the following beneficial effects:

[0029] The vehicle side panel connection structure of the present application includes a top side beam inner plate, a top side beam reinforcement plate, a C-ring upper connector, a transverse reinforcement plate, a D-pillar inner plate and a D-pillar reinforcement plate; the top side beam inner plate is fixedly connected to the top side beam reinforcement plate, the C-ring upper connector, the transverse reinforcement plate, the D-pillar inner plate and the D-pillar reinforcement plate respectively; the top side beam inner plate and the top side beam reinforcement plate are enclosed to form a top side beam cavity, the top side beam inner plate and the C-ring upper connector are enclosed to form a C-ring cavity, the top side beam inner plate and the transverse reinforcement are enclosed to form a transverse reinforcement cavity, the top side beam inner plate and the transverse reinforcement are enclosed to form a transverse reinforcement cavity, The side beam inner plate, the D-pillar inner plate and the D-pillar reinforcement plate are combined to form the D-pillar cavity; the top side beam cavity is adjacent to the C-ring cavity, the C-ring cavity is adjacent to the transverse reinforcement cavity, the transverse reinforcement cavity is adjacent to the D-pillar cavity, the D-pillar cavity is adjacent to the top side beam cavity, and the outer wall of the top side beam cavity, the outer wall of the C-ring cavity, the outer wall of the transverse reinforcement cavity and the outer wall of the D-pillar cavity are combined to form an annular reinforcement part. In this way, the torsional stiffness of the vehicle body can be significantly improved, thereby improving the NVH performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic structural diagram of a vehicle side panel connection structure provided in an embodiment of the present application;

[0032] Figure 2 A rear view of a vehicle side panel connection structure provided in an embodiment of the present application;

[0033] Figure 3 A schematic structural diagram of an inner plate of a top side beam provided in an embodiment of the present application;

[0034] Figure 4 An AA cross-sectional view provided in an embodiment of the present application;

[0035] Figure 5 A BB cross-sectional view provided in an embodiment of the present application;

[0036] Figure 6 A CC cross-sectional view provided in an embodiment of the present application;

[0037] Figure 7 A DD cross-sectional view provided in an embodiment of the present application;

[0038] Figure 8 A schematic structural diagram of a top side beam reinforcement plate provided in an embodiment of the present application;

[0039] Figure 9 A schematic structural diagram of a C-ring upper connector provided in an embodiment of the present application;

[0040] Figure 10 A schematic structural diagram of a transverse reinforcement member provided in an embodiment of the present application;

[0041] Figure 11 A schematic structural diagram of a D-pillar inner panel provided in an embodiment of the present application;

[0042] Figure 12 A structural schematic diagram of a D-pillar reinforcement plate provided in an embodiment of the present application.

[0043] The following is a supplementary description of the accompanying drawings:

[0044] 10-top side beam inner plate; 11-rear quarter window connection position; 12-C pillar; 13-first end; 14-second end; 15-second top side beam reinforcement plate connection position; 16-C ring upper connector connection position; 20-top side beam reinforcement plate; 30-C ring upper connector; 31-third top side beam inner plate connection position; 32-second transverse reinforcement connection position; 40-transverse reinforcement; 50-D pillar inner plate; 51-D pillar upper inner plate; 52-D pillar lower inner plate; 53-second top side beam inner plate connection position; 5 4-First transverse reinforcement connection position; 60-D-pillar reinforcement plate; 61-First top side beam reinforcement plate connection position; 62-First top side beam inner plate connection position; 63-D-pillar upper reinforcement plate; 64-D-pillar lower reinforcement plate; 70-Rear panel assembly; 80-Floor crossbeam assembly; 90-First adjacent end; 100-Second adjacent end; 110-Third adjacent end; 120-Fourth adjacent end; 130-Top side beam cavity; 140-C-ring cavity; 150-Transverse reinforcement cavity; 160-D-pillar cavity. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0046] References to "one embodiment" or "embodiment" herein refer to specific features, structures, or characteristics that may be included in at least one implementation of the present application. Throughout the description of this application, it should be understood that the terms "upper," "lower," "top," and "bottom," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of such features. Furthermore, the terms "first," "second," etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that such terms are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0047] The following is combined with Figure 1-12 Introduce the technical solutions in the embodiments of this application.

[0048] See Figure 1 and Figure 2 , a vehicle side panel connection structure provided by an embodiment of the present application includes a top side beam inner panel 10, a top side beam reinforcement plate 20, a C-ring upper connector 30, a transverse reinforcement 40, a D-pillar inner panel 50 and a D-pillar reinforcement plate 60; the top side beam inner panel 10 is fixedly connected to the top side beam reinforcement plate 20, the C-ring upper connector 30, the transverse reinforcement 40, the D-pillar inner panel 50 and the D-pillar reinforcement plate 60 respectively; the top side beam inner panel 10 and the top side beam reinforcement plate 20 enclose a top side beam cavity 130, the top side beam inner panel 10 and the C-ring upper connector 30 enclose a C-ring cavity 140, the top side beam inner panel 10 and the transverse reinforcement The reinforcement 40 encloses a transverse reinforcement cavity 150, the top side beam inner panel 10, the D-pillar inner panel 50 and the D-pillar reinforcement plate 60 enclose a D-pillar cavity 160; the top side beam cavity 130 is adjacent to the C-ring cavity 140, the C-ring cavity 140 is adjacent to the transverse reinforcement cavity 150, the transverse reinforcement cavity 150 is adjacent to the D-pillar cavity 160, and the D-pillar cavity 160 is adjacent to the top side beam cavity 130. The outer wall of the top side beam cavity 130, the outer wall of the C-ring cavity 140, the outer wall of the transverse reinforcement cavity 150 and the outer wall of the D-pillar cavity 160 enclose a ring-shaped reinforcement portion.

[0049] In some embodiments, the top side beam reinforcement plate 20 is arranged along the length direction of the vehicle, and the top side beam reinforcement plate 20 is fixedly connected to the top side beam inner plate 10 along the height direction of the vehicle; the C-ring upper connector 30 is fixedly connected to the top side beam inner plate 10 along the height direction of the vehicle; the D-pillar inner plate 50 and the D-pillar reinforcement plate 60 are arranged along the height direction of the vehicle, and the D-pillar inner plate 50 and the D-pillar reinforcement plate 60 are fixedly connected to the rear of the top side beam inner plate 10 along the length direction of the vehicle; the transverse reinforcement 40 is arranged along the length direction of the vehicle, and the transverse reinforcement 40 is fixedly connected between the D-pillar inner plate 50 and the C-ring upper connector 30; the C-ring upper connector 30 is arranged in front of the D-pillar inner plate 50 along the length direction of the vehicle body, and the transverse reinforcement 40 is arranged below the top side beam reinforcement plate 20 along the height direction of the vehicle body.

[0050] Specifically, the "front" in the embodiment of the present application is relative to the "rear", and the "front" refers to the orientation of the vehicle head relative to the vehicle rear; the "up" in the embodiment of the present application is relative to the "down", and the "up" refers to the orientation of the vehicle roof relative to the vehicle chassis.

[0051] In some embodiments, the concave surface of the top side beam reinforcement plate 20 is arranged opposite to the concave surface of the top side beam inner plate 10, and the concave surfaces of the top side beam reinforcement plate 20 and the top side beam inner plate 10 enclose a top side beam cavity 130; the cross-section of the C-ring upper connecting member 30 along the vehicle length direction is a "ji" character structure, and the concave surface of the C-ring upper connecting member 30 and the top side beam inner plate 10 enclose a C-ring cavity 140; the cross-section of the transverse reinforcement member 40 along the vehicle height direction is a "ji" character structure, and the concave surface of the transverse reinforcement member 40 and the top side beam inner plate 10 enclose a transverse reinforcement cavity 150; the concave surfaces of the D-column inner plate 50 and the D-column reinforcement plate 60 are arranged opposite to each other, and the concave surfaces of the top side beam inner plate 10, the D-column inner plate 50 and the D-column reinforcement plate 60 enclose a D-column cavity 160.

[0052] In some embodiments, the outer wall of the top side beam cavity 130 and the outer wall of the C-ring cavity 140 are adjacently arranged at the first adjacent end 90, the outer wall of the C-ring cavity 140 and the outer wall of the transverse reinforcement cavity 150 are adjacently arranged at the second adjacent end 100, the outer wall of the transverse reinforcement cavity 150 and the outer wall of the D-column cavity 160 are adjacently arranged at the third adjacent end 110, and the outer wall of the D-column cavity 160 and the outer wall of the top side beam cavity 130 are adjacently arranged at the fourth adjacent end 120.

[0053] In some embodiments, the projections of the top side beam cavity 130, the C-ring cavity 140, the transverse reinforcement cavity 150 and the D-column cavity 160 on the top side beam inner plate 10 enclose a "kou" character shape.

[0054] The vehicle side wall connection structure of the present application includes a top side beam inner plate, a top side beam reinforcement plate, a C-ring upper connecting member, a transverse reinforcement member, a D-column inner plate and a D-column reinforcement plate; the top side beam inner plate is fixedly connected to the top side beam reinforcement plate, the C-ring upper connecting member, the transverse reinforcement member, the D-column inner plate and the D-column reinforcement plate respectively; the top side beam inner plate and the top side beam reinforcement plate enclose a top side beam cavity 130, the top side beam inner plate and the C-ring upper connecting member enclose a C-ring cavity 140, the top side beam inner plate and the transverse reinforcement member enclose a transverse reinforcement cavity 150, and the top side beam inner plate, the D-column inner plate and the D-column reinforcement plate enclose a D-column cavity 160; the top side beam cavity 130 and the C-ring cavity 140 are adjacently arranged, the C-ring cavity 140 and the transverse reinforcement cavity 150 are adjacently arranged, the transverse reinforcement cavity 150 and the D-column cavity 160 are adjacently arranged, the D-column cavity 160 and the top side beam cavity 130 are adjacently arranged, and the outer walls of the top side beam cavity 130, the C-ring cavity 140, the transverse reinforcement cavity 150 and the D-column cavity 160 enclose an annular reinforcement part. Thus, the torsional stiffness and torsional mode of the vehicle body can be effectively improved, the force of the vehicle side wall can be effectively transmitted and decomposed, and further the deformation of the vehicle side wall can be effectively resisted, and then the NVH performance of the whole vehicle can be improved.

[0055] In the embodiment of the present application, a rear quarter window connection position 11 is provided on the inner plate 10 of the top side beam, and the C-ring upper connecting member 30 is fixedly connected to the side of the rear quarter window connection position 11 on the inner plate 10 of the top side beam away from the C-pillar 12.

[0056] For some examples, see Figure 1-3 The inner plate 10 of the top side beam has an accommodating space for accommodating the rear corner window of the vehicle, and the C-ring upper connecting member 30 is arranged behind the rear corner window connecting position 11. In this way, the accommodating space for accommodating the rear corner window of the vehicle can be increased, thereby improving the field of vision of the rear passengers.

[0057] In the prior art, the C-ring upper connector is fixedly mounted on the C-pillar. To ensure the structural strength of the C-ring upper connector, the size of the C-pillar along the length of the vehicle must be increased, which will inevitably reduce the space for accommodating the rear quarter windows of the vehicle, thereby resulting in poor vision for rear passengers.

[0058] In an embodiment of the present application, the top side beam reinforcement plate 20 and the D-pillar reinforcement plate 60 are respectively fixedly connected to the outer side of the top side beam inner plate 10, and the top side beam reinforcement plate 20 and the D-pillar reinforcement plate 60 are fixedly connected; the C-ring upper connecting member 30, the transverse reinforcement member 40 and the D-pillar inner plate 50 are respectively fixedly connected to the inner side of the top side beam inner plate 10, and the transverse reinforcement member 40 is fixedly connected between the C-ring upper connecting member 30 and the D-pillar inner plate 50.

[0059] For some examples, see Figure 4-7 The inner side of the top side beam reinforcement plate 20 is arranged opposite to the outer side of the top side beam inner plate 10, and the inner side of the top side beam reinforcement plate 20 and the outer side of the top side beam inner plate 10 are enclosed to form a top side beam cavity 130; the outer side of the C-ring upper connecting member 30 is arranged opposite to the inner side of the top side beam inner plate 10, and the outer side of the C-ring upper connecting member 30 and the inner side of the top side beam inner plate 10 are enclosed to form a C-ring cavity 140; the outer side of the transverse reinforcement 40 is arranged opposite to the inner side of the top side beam inner plate 10, and the outer side of the transverse reinforcement 40 and the inner side of the top side beam inner plate 10 are enclosed to form a transverse reinforcement cavity 150; the outer side of the D-pillar inner plate 50 and the inner side of the D-pillar reinforcement plate 60 are arranged opposite to each other, and the outer side of the D-pillar inner plate 50 and the inner side of the D-pillar reinforcement plate 60 are enclosed to form a D-pillar cavity 160.

[0060] Specifically, "inside" and "outside" in the embodiments of the present application are relative, and "inside" refers to the orientation of the cabin relative to the space outside the vehicle.

[0061] Specifically, the fixed connection methods between the top side beam reinforcement plate 20 and the top side beam inner plate 10, the C-ring upper connecting piece 30 and the top side beam inner plate 10, the transverse reinforcement 40 and the top side beam inner plate 10, the D-pillar inner plate 50 and the top side beam inner plate 10, and the D-pillar reinforcement plate 60 and the top side beam inner plate 10 include but are not limited to welding, self-piercing riveting, press riveting and gluing.

[0062] Preferably, the top side beam reinforcement plate 20 is welded to the top side beam inner plate 10, the C-ring upper connecting piece 30 is welded to the top side beam inner plate 10, the transverse reinforcement piece 40 is welded to the top side beam inner plate 10, the D-pillar inner plate 50 is welded to the top side beam inner plate 10, and the D-pillar reinforcement plate 60 is welded to the top side beam inner plate 10, so that a reliable fixed connection is achieved.

[0063] In some embodiments, the front end of the transverse reinforcement 40 is fixedly connected to the C-ring upper connector 30, and the rear end of the transverse reinforcement 40 is fixedly connected to the D-pillar inner panel 50. In this way, the torsional stiffness and torsional mode of the vehicle body can be effectively improved, and the force on the vehicle side can be effectively transmitted and decomposed, thereby effectively resisting the deformation of the vehicle side, thereby improving the NVH performance of the entire vehicle.

[0064] Specifically, the fixed connection between the front end of the transverse reinforcement 40 and the C-ring upper connector 30, and the rear end of the transverse reinforcement 40 and the D-pillar inner panel 50, may be achieved by methods including, but not limited to, welding, self-pierce riveting, press riveting, and adhesive bonding. Preferably, the front end of the transverse reinforcement 40 is welded to the C-ring upper connector 30, and the rear end of the transverse reinforcement 40 is welded to the D-pillar inner panel 50.

[0065] In the embodiment of the present application, the top side beam inner panel 10 includes a first end portion 13 and a second end portion 14 arranged along the vehicle body height direction, and the first end portion 13 and the second end portion 14 are arranged opposite to each other; the D-pillar cavity 160 is arranged on the side of the first end portion 13 away from the second end portion 14, and the first end portion 13 is arranged between the D-pillar reinforcement plate 60 and the D-pillar inner panel 50; the D-pillar reinforcement plate 60 is fixedly connected to the outer side of the first end portion 13, and the D-pillar inner panel 50 is fixedly connected to the inner side of the first end portion 13.

[0066] In some embodiments, the second end portion 14 is disposed in front of the first end portion 13 , and the D-pillar cavity 160 is disposed behind the first end portion 13 .

[0067] In some embodiments, the inner side of the D-pillar reinforcement plate 60 is disposed opposite the outer side of the first end portion 13. Methods for securing the D-pillar reinforcement plate 60 to the first end portion 13 include, but are not limited to, welding, self-pierce riveting, press riveting, and gluing. Preferably, the D-pillar reinforcement plate 60 is welded to the first end portion 13, thereby achieving a secure, fixed connection between the D-pillar reinforcement plate 60 and the first end portion 13.

[0068] In some embodiments, the outer side of the D-pillar inner panel 50 is disposed opposite the inner side of the first end portion 13. Methods for securing the D-pillar inner panel 50 to the first end portion 13 include, but are not limited to, welding, self-pierce riveting, press riveting, and gluing. Preferably, the D-pillar inner panel 50 is welded to the first end portion 13, thereby achieving a secure, secure connection between the D-pillar inner panel 50 and the first end portion 13.

[0069] In an embodiment of the present application, at the adjacent ends of the top side beam cavity 130 and the C-ring cavity 140, the top side beam inner plate 10 is arranged between the top side beam reinforcement plate 20 and the C-ring upper connecting piece 30; a second top side beam reinforcement plate connection position 15 is provided on the outer side of the top side beam inner plate 10, and a C-ring upper connecting piece connection position 16 is provided on the inner side of the top side beam inner plate 10; the top side beam reinforcement plate 20 is fixedly connected to the second top side beam reinforcement plate connection position 15, and the C-ring upper connecting piece 30 is fixedly connected to the C-ring upper connecting piece connection position 16.

[0070] For some examples, see Figure 4 , Figure 4 An AA cross-sectional view of the adjacent ends of a top side beam cavity 130 and a C-ring cavity 140 is provided in an embodiment of the present application. At the adjacent ends of the top side beam cavity 130 and the C-ring cavity 140, the top side beam reinforcement plate 20 is fixedly connected to the top side beam inner plate 10 via the second top side beam reinforcement plate connection position 15; the C-ring upper connecting piece 30 is fixedly connected to the top side beam inner plate 10 via the C-ring upper connecting piece connection position 16, thereby realizing the adjacent fixed setting of the top side beam cavity 130 and the C-ring cavity 140.

[0071] In an embodiment of the present application, at the adjacent ends of the C-ring cavity 140 and the transverse reinforcement cavity 150, the C-ring upper connecting member 30 is arranged between the top side beam inner plate 10 and the transverse reinforcement 40; a third top side beam inner plate connection position 31 is provided on the outer side of the C-ring upper connecting member 30, and a second transverse reinforcement connection position 32 is provided on the inner side of the C-ring upper connecting member 30; the top side beam inner plate 10 is fixedly connected to the third top side beam inner plate connection position 31, and the transverse reinforcement 40 is fixedly connected to the second transverse reinforcement connection position 32.

[0072] For some examples, see Figure 5 , Figure 5 A BB cross-sectional view of the adjacent ends of a C-ring cavity 140 and a transverse reinforcement cavity 150 is provided in an embodiment of the present application. At the adjacent ends of the C-ring cavity 140 and the transverse reinforcement cavity 150, the top side beam inner plate 10 is fixedly connected to the C-ring upper connector 30 through the third top side beam inner plate connection position 31, and the transverse reinforcement 40 is fixedly connected to the C-ring upper connector 30 through the second transverse reinforcement connection position 32. In this way, the adjacent fixed setting of the C-ring cavity 140 and the transverse reinforcement cavity 150 is realized.

[0073] In an embodiment of the present application, at the adjacent ends of the D-pillar cavity 160 and the transverse reinforcement cavity 150, the D-pillar inner panel 50 is arranged between the transverse reinforcement 40 and the top side beam inner panel 10; a second top side beam inner panel connection position 53 is provided on the outer side of the D-pillar inner panel 50, and a first transverse reinforcement connection position 54 is provided on the inner side of the D-pillar inner panel 50; the top side beam inner panel 10 is fixedly connected to the second top side beam inner panel connection position 53, and the transverse reinforcement 40 is fixedly connected to the first transverse reinforcement connection position 54.

[0074] For some examples, see Figure 6 , Figure 6 A CC cross-sectional view of the adjacent ends of a D-pillar cavity 160 and a transverse reinforcement cavity 150 is provided in an embodiment of the present application. At the adjacent ends of the D-pillar cavity 160 and the transverse reinforcement cavity 150, the top side beam inner panel 10 is fixedly connected to the D-pillar inner panel 50 via the second top side beam inner panel connection position 53, and the transverse reinforcement 40 is fixedly connected to the D-pillar inner panel 50 via the first transverse reinforcement connection position 54. In this way, the adjacent fixed setting of the D-pillar cavity 160 and the transverse reinforcement cavity 150 is realized.

[0075] For some examples, see Figure 6 At the adjacent end of the D-pillar cavity 160 and the transverse reinforcement cavity 150, a D-pillar reinforcement plate connection position is provided on the outer side of the top side beam inner plate 10, and the D-pillar reinforcement plate 60 is fixedly connected to the outer side of the top side beam inner plate 10 through the D-pillar reinforcement plate connection position.

[0076] In an embodiment of the present application, at the adjacent ends of the D-pillar cavity 160 and the top side beam cavity 130, the D-pillar reinforcement plate 60 is arranged between the top side beam reinforcement plate 20 and the top side beam inner plate 10; a first top side beam reinforcement plate connection position 61 is provided on the outer side of the D-pillar reinforcement plate 60, and a first top side beam inner plate connection position 62 is provided on the inner side of the D-pillar reinforcement plate 60; the top side beam reinforcement plate 20 is fixedly connected to the first top side beam reinforcement plate connection position 61, and the top side beam inner plate 10 is fixedly connected to the first top side beam inner plate connection position 62.

[0077] For some examples, see Figure 7 , Figure 7 A DD cross-sectional view of the adjacent end of a D-pillar cavity 160 and a top side beam cavity 130 is provided in an embodiment of the present application. At the adjacent end of the D-pillar cavity 160 and the top side beam cavity 130, the top side beam reinforcement plate 20 is fixedly connected to the D-pillar reinforcement plate 60 through a first top side beam reinforcement plate connection position 61, and the top side beam inner plate 10 is fixedly connected to the D-pillar reinforcement plate 60 through a first top side beam inner plate connection position 62. In this way, the adjacent fixed setting of the D-pillar cavity 160 and the top side beam cavity 130 is realized.

[0078] In the examples of this application, please see Figure 11 The D-pillar inner panel 50 includes a fixedly connected upper D-pillar inner panel 51 and a lower D-pillar inner panel 52. The upper D-pillar inner panel 51 and the lower D-pillar inner panel 52 are arranged vertically in the vehicle's height direction, with the upper D-pillar inner panel 51 positioned above the lower D-pillar inner panel 52. The upper D-pillar inner panel 51 is fixedly connected to the roof side rail reinforcement plate 20 and the roof side rail inner panel 10, respectively; the lower D-pillar inner panel 52 is fixedly connected to the roof side rail inner panel 10 and the transverse reinforcement 40, respectively. This ensures a balanced balance between cost and structural strength of the D-pillar inner panel 50.

[0079] In the examples of this application, please see Figure 12 The D-pillar reinforcement plate 60 includes a fixedly connected D-pillar upper reinforcement plate 63 and a D-pillar lower reinforcement plate 64. The D-pillar upper reinforcement plate 63 and the D-pillar lower reinforcement plate 64 are arranged vertically along the height of the vehicle, with the D-pillar upper reinforcement plate 63 positioned above the D-pillar lower reinforcement plate 64. The D-pillar upper reinforcement plate 63 is fixedly connected to the D-pillar inner panel 50, the roof side rail inner panel 10, and the roof side rail reinforcement plate 20, respectively. The D-pillar lower reinforcement plate 64 is fixedly connected to the D-pillar inner panel 50 and the roof side rail inner panel 10, respectively. This ensures a balanced balance between cost and structural strength of the D-pillar reinforcement plate 60.

[0080] In the examples of this application, please see Figure 3 The top side beam inner plate 10 is an integrated structure.

[0081] In some embodiments, the top side beam inner panel 10 includes an upper side beam inner panel and a CD pillar inner panel that are fixedly connected. The upper side beam inner panel and the CD pillar inner panel are arranged up and down along the height direction of the vehicle, and the upper side beam inner panel is arranged above the CD pillar inner panel. In this way, the cost and structural strength of the top side beam inner panel 10 can be taken into account.

[0082] In the examples of this application, please see Figure 1 and Figure 2 The D-pillar cavity 160 is fixedly connected to the rear panel assembly 70 away from the outer wall of the top side beam cavity 130, and the C-ring cavity 140 is fixedly connected to the floor cross member assembly 80 away from the outer wall of the top side beam cavity 130. In this way, the integrity and continuity of the vehicle side panel connection structure can be improved, thereby improving the torsional stiffness and torsional mode of the vehicle side panel connection structure, and can effectively resist the deformation of the vehicle side panel connection structure.

[0083] Specifically, the connection methods for fixing the outer wall of the D-pillar cavity 160 away from the top side beam cavity 130 and the rear enclosure assembly 70 include but are not limited to welding, self-piercing riveting, press riveting and gluing. Preferably, the outer wall of the D-pillar cavity 160 away from the top side beam cavity 130 is welded to the rear enclosure assembly 70, so that a reliable fixed connection is achieved between the outer wall of the D-pillar cavity 160 away from the top side beam cavity 130 and the rear enclosure assembly 70.

[0084] Specifically, the connection methods of the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 and the floor cross beam assembly 80 include but are not limited to welding, self-piercing riveting, pressure riveting and gluing. Preferably, the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 is welded to the floor cross beam assembly 80, so that a reliable fixed connection is achieved between the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 and the floor cross beam assembly 80.

[0085] Furthermore, the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 is smoothly connected to the floor cross beam assembly 80, and the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 is smoothly connected to the floor cross beam assembly 80 at the connection point, avoiding the step structure. In this way, the stress concentration at the connection point between the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 and the floor cross beam assembly 80 can be reduced, thereby improving the torsional stiffness and torsional mode of the vehicle side connection structure.

[0086] The vehicle side panel connection structure in the embodiment of the present application has the following beneficial effects:

[0087] 1. The vehicle side panel connection structure includes a roof side beam inner panel, a roof side beam reinforcement panel, a C-ring upper connector, a transverse reinforcement panel, a D-pillar inner panel, and a D-pillar reinforcement panel; the roof side beam inner panel is fixedly connected to the roof side beam reinforcement panel, the C-ring upper connector, the transverse reinforcement panel, the D-pillar inner panel, and the D-pillar reinforcement panel; the roof side beam inner panel and the roof side beam reinforcement panel enclose a roof side beam cavity 130, the roof side beam inner panel and the C-ring upper connector enclose a C-ring cavity 140, the roof side beam inner panel and the transverse reinforcement panel enclose a transverse reinforcement cavity 150, the roof side beam inner panel, the D-pillar inner panel, and the D-pillar reinforcement panel enclose a D-pillar cavity 160; the roof side beam cavity 130 and the C-ring cavity 140 are arranged adjacent to each other. The C-ring cavity 140 is arranged adjacent to the transverse reinforcement cavity 150, the transverse reinforcement cavity 150 is arranged adjacent to the D-pillar cavity 160, the D-pillar cavity 160 is arranged adjacent to the top side beam cavity 130, and the outer wall of the top side beam cavity 130, the outer wall of the C-ring cavity 140, the outer wall of the transverse reinforcement cavity 150 and the outer wall of the D-pillar cavity 160 are combined to form an annular reinforcement portion. In this way, the torsional stiffness and torsional mode of the vehicle side connection structure can be effectively improved, thereby improving the torsional stiffness and torsional mode of the vehicle body, effectively transmitting and decomposing the force on the vehicle side, and effectively resisting the deformation of the vehicle side, thereby improving the NVH performance of the entire vehicle.

[0088] 2. A rear quarter window connection position 11 is provided on the inner panel 10 of the top side beam, and the C-ring upper connector 30 is fixedly connected to the side of the rear quarter window connection position 11 on the inner panel 10 of the top side beam away from the C-pillar 12. In this way, the accommodating space for the rear quarter window of the vehicle can be increased, thereby improving the field of vision of the rear passengers.

[0089] The following describes specific embodiments of the present application based on the above technical solutions.

[0090] Example 1

[0091] See Figure 1-10, embodiment 1 provides a vehicle side panel connection structure, including a top side beam inner plate, a top side beam reinforcement plate, a C-ring upper connector, a transverse reinforcement, a D-pillar inner plate and a D-pillar reinforcement plate; the top side beam inner plate is fixedly connected to the top side beam reinforcement plate, the C-ring upper connector, the transverse reinforcement, the D-pillar inner plate and the D-pillar reinforcement plate respectively; the top side beam inner plate and the top side beam reinforcement plate enclose a top side beam cavity 130, the top side beam inner plate and the C-ring upper connector enclose a C-ring cavity 140, the top side beam inner plate and the transverse reinforcement enclose a transverse reinforcement cavity 1 50, the top side beam inner plate, the D-pillar inner plate and the D-pillar reinforcement plate enclose a D-pillar cavity 160; the top side beam cavity 130 is adjacent to the C-ring cavity 140, the C-ring cavity 140 is adjacent to the transverse reinforcement cavity 150, the transverse reinforcement cavity 150 is adjacent to the D-pillar cavity 160, and the D-pillar cavity 160 is adjacent to the top side beam cavity 130. The outer wall of the top side beam cavity 130, the outer wall of the C-ring cavity 140, the outer wall of the transverse reinforcement cavity 150 and the outer wall of the D-pillar cavity 160 enclose a ring-shaped reinforcement portion.

[0092] The top side beam reinforcement plate 20 is arranged along the length direction of the vehicle, and the top side beam reinforcement plate 20 is fixedly connected to the top side beam inner plate 10 along the height direction of the vehicle; the C-ring upper connecting member 30 is fixedly connected to the top side beam inner plate 10 along the height direction of the vehicle; the D-pillar inner plate 50 and the D-pillar reinforcement plate 60 are arranged along the height direction of the vehicle, and the D-pillar inner plate 50 and the D-pillar reinforcement plate 60 are fixedly connected to the rear of the top side beam inner plate 10 along the length direction of the vehicle; the transverse reinforcement 40 is arranged along the length direction of the vehicle, and the transverse reinforcement 40 is fixedly connected between the D-pillar inner plate 50 and the C-ring upper connecting member 30; the C-ring upper connecting member 30 is arranged in front of the D-pillar inner plate 50 along the length direction of the vehicle body, and the transverse reinforcement 40 is arranged below the top side beam reinforcement plate 20 along the height direction of the vehicle body.

[0093] The top side beam reinforcement plate 20 is fixedly connected to the outer side of the top side beam inner plate 10, and the inner side of the top side beam reinforcement plate 20 is arranged opposite to the outer side of the top side beam inner plate 10, and the inner side of the top side beam reinforcement plate 20 and the outer side of the top side beam inner plate 10 are enclosed to form a top side beam cavity 130; the C-ring upper connecting piece 30 is fixedly connected to the inner side of the top side beam inner plate 10, and the outer side of the C-ring upper connecting piece 30 is arranged opposite to the inner side of the top side beam inner plate 10, and the outer side of the C-ring upper connecting piece 30 and the inner side of the top side beam inner plate 10 are enclosed to form a C-ring cavity 140; the transverse reinforcement 40 It is fixedly connected to the inner side of the top side beam inner panel 10, and the outer side of the transverse reinforcement 40 is arranged opposite to the inner side of the top side beam inner panel 10, and the outer side of the transverse reinforcement 40 and the inner side of the top side beam inner panel 10 enclose a transverse reinforcement cavity 150; the D-pillar inner panel 50 is fixedly connected to the inner side of the top side beam inner panel 10, and the D-pillar reinforcement plate 60 is fixedly connected to the outer side of the top side beam inner panel 10, and the outer side of the D-pillar inner panel 50 and the inner side of the D-pillar reinforcement plate 60 are arranged opposite to each other, and the outer side of the D-pillar inner panel 50 and the inner side of the D-pillar reinforcement plate 60 enclose a D-pillar cavity 160.

[0094] The cross-section of the C-ring upper connector 30 along the vehicle length direction is a "J"-shaped structure, and the cross-section of the transverse reinforcement 40 along the vehicle height direction is a "J"-shaped structure. The front end of the transverse reinforcement 40 is fixedly connected to the C-ring upper connector 30, and the rear end of the transverse reinforcement 40 is fixedly connected to the D-pillar inner panel 50.

[0095] The outer wall of the roof rail cavity 130 is adjacent to the outer wall of the C-ring cavity 140 at a first adjacent end 90, the outer wall of the C-ring cavity 140 is adjacent to the outer wall of the transverse reinforcement cavity 150 at a second adjacent end 100, the outer wall of the transverse reinforcement cavity 150 is adjacent to the outer wall of the D-pillar cavity 160 at a third adjacent end 110, and the outer wall of the D-pillar cavity 160 is adjacent to the outer wall of the roof rail cavity 130 at a fourth adjacent end 120. The projections of the roof rail cavity 130, the C-ring cavity 140, the transverse reinforcement cavity 150, and the D-pillar cavity 160 on the roof rail inner panel 10 form a "mouth" shape. This effectively improves the torsional stiffness and torsional mode of the vehicle body, effectively transmits and decomposes the forces acting on the vehicle side panels, and effectively resists deformation of the vehicle side panels, thereby improving the NVH performance of the entire vehicle.

[0096] The roof side beam inner panel 10 includes a first end portion 13 and a second end portion 14 arranged along the vehicle body height direction, the first end portion 13 and the second end portion 14 are arranged opposite to each other, and the second end portion 14 is arranged in front of the first end portion 13; the D-pillar cavity 160 is arranged behind the first end portion 13, and the first end portion 13 is arranged between the D-pillar reinforcement plate 60 and the D-pillar inner panel 50; the D-pillar reinforcement plate 60 is fixedly connected to the outer side of the first end portion 13, and the inner side of the D-pillar reinforcement plate 60 is arranged opposite to the outer side of the first end portion 13; the outer side of the D-pillar inner panel 50 is arranged opposite to the inner side of the first end portion 13, and the D-pillar inner panel 50 is fixedly connected to the inner side of the first end portion 13.

[0097] A rear corner window connection position 11 is provided on the inner panel 10 of the top side beam. The inner panel 10 of the top side beam has an accommodation space for accommodating the rear corner window of the vehicle. The C-ring upper connecting member 30 is fixedly arranged behind the rear corner window connection position 11. In this way, the accommodation space for accommodating the rear corner window of the vehicle can be increased, thereby improving the field of vision of the rear passengers.

[0098] The D-pillar inner panel 50 , the D-pillar reinforcement panel 60 and the roof side beam inner panel 10 are all integral structures.

[0099] The D-pillar cavity 160 is fixedly connected to the rear panel assembly 70 away from the outer wall of the top side beam cavity 130, and the C-ring cavity 140 is fixedly connected to the floor crossbeam assembly 80 away from the outer wall of the top side beam cavity 130. In this way, the integrity and continuity of the vehicle side panel connection structure can be improved, thereby improving the torsional stiffness and torsional mode of the vehicle side panel connection structure, and can effectively resist the deformation of the vehicle side panel connection structure.

[0100] The outer wall of the C-ring cavity 140 away from the top side beam cavity 130 is smoothly connected to the floor cross beam assembly 80, and the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 is smoothly connected to the floor cross beam assembly 80 at the connection point, avoiding a step structure. In this way, the stress concentration at the connection point between the outer wall of the C-ring cavity 140 away from the top side beam cavity 130 and the floor cross beam assembly 80 can be reduced, thereby improving the torsional stiffness and torsional mode of the vehicle side connection structure.

[0101] At the adjacent ends of the top side beam cavity 130 and the C-ring cavity 140, the top side beam inner plate 10 is arranged between the top side beam reinforcement plate 20 and the C-ring upper connecting piece 30; a second top side beam reinforcement plate connecting position 15 is provided on the outer side of the top side beam inner plate 10, and a C-ring upper connecting piece connecting position 16 is provided on the inner side of the top side beam inner plate 10; the top side beam reinforcement plate 20 is fixedly connected to the top side beam inner plate 10 through the second top side beam reinforcement plate connecting position 15; the C-ring upper connecting piece 30 is fixedly connected to the top side beam inner plate 10 through the C-ring upper connecting piece connecting position 16, so that the adjacent fixed arrangement of the top side beam cavity 130 and the C-ring cavity 140 is realized.

[0102] At the adjacent end of the C-ring cavity 140 and the transverse reinforcement cavity 150, the C-ring upper connector 30 is arranged between the top side beam inner plate 10 and the transverse reinforcement 40; a third top side beam inner plate connection position 31 is provided on the outer side of the C-ring upper connector 30, and a second transverse reinforcement connection position 32 is provided on the inner side of the C-ring upper connector 30; the top side beam inner plate 10 is fixedly connected to the C-ring upper connector 30 through the third top side beam inner plate connection position 31, and the transverse reinforcement 40 is fixedly connected to the C-ring upper connector 30 through the second transverse reinforcement connection position 32, thereby realizing the adjacent fixed arrangement of the C-ring cavity 140 and the transverse reinforcement cavity 150.

[0103] At the adjacent end of the D-pillar cavity 160 and the transverse reinforcement cavity 150, the D-pillar inner panel 50 is arranged between the transverse reinforcement 40 and the top side beam inner panel 10; a second top side beam inner panel connection position 53 is provided on the outer side of the D-pillar inner panel 50, and a first transverse reinforcement connection position 54 is provided on the inner side of the D-pillar inner panel 50; the top side beam inner panel 10 is fixedly connected to the D-pillar inner panel 50 through the second top side beam inner panel connection position 53, and the transverse reinforcement 40 is fixedly connected to the D-pillar inner panel 50 through the first transverse reinforcement connection position 54, thereby realizing the adjacent fixed arrangement of the D-pillar cavity 160 and the transverse reinforcement cavity 150.

[0104] At the adjacent end of the D-pillar cavity 160 and the transverse reinforcement cavity 150 , a D-pillar reinforcement plate connection position is provided on the outer side of the roof side beam inner panel 10 , and the D-pillar reinforcement plate 60 is fixedly connected to the outer side of the roof side beam inner panel 10 through the D-pillar reinforcement plate connection position.

[0105] At the adjacent end of the D-pillar cavity 160 and the top side beam cavity 130, the D-pillar reinforcement plate 60 is arranged between the top side beam reinforcement plate 20 and the top side beam inner plate 10; a first top side beam reinforcement plate connection position 61 is provided on the outer side of the D-pillar reinforcement plate 60, and a first top side beam inner plate connection position 62 is provided on the inner side of the D-pillar reinforcement plate 60; the top side beam reinforcement plate 20 is fixedly connected to the D-pillar reinforcement plate 60 through the first top side beam reinforcement plate connection position 61, and the top side beam inner plate 10 is fixedly connected to the D-pillar reinforcement plate 60 through the first top side beam inner plate connection position 62, so that the adjacent fixed arrangement of the D-pillar cavity 160 and the top side beam cavity 130 is realized.

[0106] Example 2

[0107] The difference between Example 2 and Example 1 lies in the structural arrangement of the D-pillar inner plate 50, the D-pillar reinforcement plate 60 and the roof side beam inner plate 10. The similarities with Example 1 are not repeated here. The differences between Example 2 and Example 1 are now described as follows:

[0108] See Figure 11 The D-pillar inner panel 50 includes a fixedly connected upper D-pillar inner panel 51 and a lower D-pillar inner panel 52. The upper D-pillar inner panel 51 and the lower D-pillar inner panel 52 are arranged vertically in the vehicle's height direction, with the upper D-pillar inner panel 51 positioned above the lower D-pillar inner panel 52. The upper D-pillar inner panel 51 is fixedly connected to the roof side rail reinforcement plate 20 and the roof side rail inner panel 10, respectively; the lower D-pillar inner panel 52 is fixedly connected to the roof side rail inner panel 10 and the transverse reinforcement 40, respectively. This ensures a balanced balance between cost and structural strength of the D-pillar inner panel 50.

[0109] See Figure 12 The D-pillar reinforcement plate 60 includes a fixedly connected D-pillar upper reinforcement plate 63 and a D-pillar lower reinforcement plate 64. The D-pillar upper reinforcement plate 63 and the D-pillar lower reinforcement plate 64 are arranged vertically along the height of the vehicle, with the D-pillar upper reinforcement plate 63 positioned above the D-pillar lower reinforcement plate 64. The D-pillar upper reinforcement plate 63 is fixedly connected to the D-pillar inner panel 50, the roof side rail inner panel 10, and the roof side rail reinforcement plate 20, respectively. The D-pillar lower reinforcement plate 64 is fixedly connected to the D-pillar inner panel 50 and the roof side rail inner panel 10, respectively. This ensures a balanced balance between cost and structural strength of the D-pillar reinforcement plate 60.

[0110] The top side beam inner panel 10 includes an upper side beam inner panel and a CD pillar inner panel that are fixedly connected. The upper side beam inner panel and the CD pillar inner panel are arranged up and down along the height direction of the vehicle. The upper side beam inner panel is arranged above the CD pillar inner panel. In this way, the cost and structural strength of the top side beam inner panel 10 can be taken into account.

[0111] The vehicle side panel connection structures provided in the above-mentioned embodiments 1 and 2 have the following beneficial effects:

[0112] 1. The vehicle side panel connection structure includes a roof side beam inner panel, a roof side beam reinforcement panel, a C-ring upper connector, a transverse reinforcement panel, a D-pillar inner panel, and a D-pillar reinforcement panel; the roof side beam inner panel is fixedly connected to the roof side beam reinforcement panel, the C-ring upper connector, the transverse reinforcement panel, the D-pillar inner panel, and the D-pillar reinforcement panel; the roof side beam inner panel and the roof side beam reinforcement panel enclose a roof side beam cavity 130, the roof side beam inner panel and the C-ring upper connector enclose a C-ring cavity 140, the roof side beam inner panel and the transverse reinforcement panel enclose a transverse reinforcement cavity 150, the roof side beam inner panel, the D-pillar inner panel, and the D-pillar reinforcement panel enclose a D-pillar cavity 160; the roof side beam cavity 130 and the C-ring cavity 140 are arranged adjacent to each other. The C-ring cavity 140 is arranged adjacent to the transverse reinforcement cavity 150, the transverse reinforcement cavity 150 is arranged adjacent to the D-pillar cavity 160, the D-pillar cavity 160 is arranged adjacent to the top side beam cavity 130, and the outer wall of the top side beam cavity 130, the outer wall of the C-ring cavity 140, the outer wall of the transverse reinforcement cavity 150 and the outer wall of the D-pillar cavity 160 are combined to form an annular reinforcement portion. In this way, the torsional stiffness and torsional mode of the vehicle side connection structure can be effectively improved, thereby improving the torsional stiffness and torsional mode of the vehicle body, effectively transmitting and decomposing the force on the vehicle side, and effectively resisting the deformation of the vehicle side, thereby improving the NVH performance of the entire vehicle.

[0113] 2. A rear quarter window connection position 11 is provided on the inner panel 10 of the top side beam, and the C-ring upper connector 30 is fixedly connected to the side of the rear quarter window connection position 11 on the inner panel 10 of the top side beam away from the C-pillar 12. In this way, the accommodating space for the rear quarter window of the vehicle can be increased, thereby improving the field of vision of the rear passengers.

[0114] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A vehicle side connection structure, characterized in that: It comprises a top side beam inner plate (10), a top side beam reinforcement plate (20), a C-ring upper connecting piece (30), a transverse reinforcement piece (40), a D-pillar inner plate (50) and a D-pillar reinforcement plate (60); The top side beam inner plate (10) is respectively fixedly connected to the top side beam reinforcement plate (20), the C-ring upper connecting piece (30), the transverse reinforcement piece (40), the D-pillar inner plate (50) and the D-pillar reinforcement plate (60); The top side beam inner plate (10) and the top side beam reinforcement plate (20) enclose a top side beam cavity (130), the top side beam inner plate (10) and the C-ring upper connecting member (30) enclose a C-ring cavity (140), the top side beam inner plate (10) and the transverse reinforcement member (40) enclose a transverse reinforcement cavity (150), and the top side beam inner plate (10), the D-pillar inner plate (50) and the D-pillar reinforcement plate (60) enclose a D-pillar cavity (160); The top side beam cavity (130) is arranged adjacent to the C-ring cavity (140), the C-ring cavity (140) is arranged adjacent to the transverse reinforcement cavity (150), the transverse reinforcement cavity (150) is arranged adjacent to the D-pillar cavity (160), and the D-pillar cavity (160) is arranged adjacent to the top side beam cavity (130). The outer wall of the top side beam cavity (130), the outer wall of the C-ring cavity (140), the outer wall of the transverse reinforcement cavity (150) and the outer wall of the D-pillar cavity (160) enclose a ring-shaped reinforcement portion.

2. The vehicle side panel connection structure according to claim 1, characterized in that: A rear corner window connection position (11) is provided on the top side beam inner plate (10), and the C-ring upper connecting piece (30) is fixedly connected to a side of the rear corner window connection position (11) on the top side beam inner plate (10) away from the C-pillar (12).

3. The vehicle side panel connection structure according to claim 1, wherein: The top side beam reinforcement plate (20) and the D-pillar reinforcement plate (60) are respectively fixedly connected to the outer side of the top side beam inner plate (10), and the top side beam reinforcement plate (20) and the D-pillar reinforcement plate (60) are fixedly connected; The C-ring upper connecting piece (30), the transverse reinforcement piece (40) and the D-pillar inner plate (50) are respectively fixedly connected to the inner side of the top side beam inner plate (10), and the transverse reinforcement piece (40) is fixedly connected between the C-ring upper connecting piece (30) and the D-pillar inner plate (50).

4. The vehicle side panel connection structure according to claim 1, wherein: The top side beam inner plate (10) comprises a first end portion (13) and a second end portion (14) arranged along the vehicle body height direction, wherein the first end portion (13) and the second end portion (14) are arranged opposite to each other; The D-pillar cavity (160) is arranged on the side of the first end portion (13) away from the second end portion (14), and the first end portion (13) is arranged between the D-pillar reinforcement plate (60) and the D-pillar inner plate (50); The D-pillar reinforcement plate (60) is fixedly connected to the outer side of the first end portion (13), and the D-pillar inner plate (50) is fixedly connected to the inner side of the first end portion (13).

5. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: At the adjacent ends of the top side beam cavity (130) and the C-ring cavity (140), the top side beam inner plate (10) is arranged between the top side beam reinforcement plate (20) and the C-ring upper connector (30); A second top side beam reinforcement plate connection position (15) is provided on the outer side of the top side beam inner plate (10), and a C-ring upper connector connection position (16) is provided on the inner side of the top side beam inner plate (10); the top side beam reinforcement plate (20) is fixedly connected to the second top side beam reinforcement plate connection position (15), and the C-ring upper connector (30) is fixedly connected to the C-ring upper connector connection position (16).

6. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: At the adjacent ends of the C-ring cavity (140) and the transverse reinforcement cavity (150), the C-ring upper connecting member (30) is arranged between the top side beam inner plate (10) and the transverse reinforcement member (40); A third top side beam inner plate connection position (31) is provided on the outer side of the C-ring upper connection member (30), and a second transverse reinforcement member connection position (32) is provided on the inner side of the C-ring upper connection member (30); the top side beam inner plate (10) is fixedly connected to the third top side beam inner plate connection position (31), and the transverse reinforcement member (40) is fixedly connected to the second transverse reinforcement member connection position (32).

7. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: At the adjacent end of the D-pillar cavity (160) and the transverse reinforcement cavity (150), the D-pillar inner plate (50) is arranged between the transverse reinforcement (40) and the top side beam inner plate (10); A second top side beam inner plate connection position (53) is provided on the outer side of the D-pillar inner plate (50), and a first transverse reinforcement member connection position (54) is provided on the inner side of the D-pillar inner plate (50); the top side beam inner plate (10) is fixedly connected to the second top side beam inner plate connection position (53), and the transverse reinforcement member (40) is fixedly connected to the first transverse reinforcement member connection position (54).

8. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: At the adjacent end of the D-pillar cavity (160) and the top side beam cavity (130), the D-pillar reinforcement plate (60) is arranged between the top side beam reinforcement plate (20) and the top side beam inner plate (10); A first top side beam reinforcement plate connection position (61) is provided on the outer side of the D-pillar reinforcement plate (60), and a first top side beam inner plate connection position (62) is provided on the inner side of the D-pillar reinforcement plate (60); the top side beam reinforcement plate (20) is fixedly connected to the first top side beam reinforcement plate connection position (61), and the top side beam inner plate (10) is fixedly connected to the first top side beam inner plate connection position (62).

9. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: The D-pillar inner panel (50) includes a D-pillar upper inner panel (51) and a D-pillar lower inner panel (52); The D-pillar upper inner plate (51) is fixedly connected to the top side beam reinforcement plate (20) and the top side beam inner plate (10) respectively; The D-pillar lower inner plate (52) is fixedly connected to the top side beam inner plate (10) and the transverse reinforcement (40) respectively.

10. The vehicle side panel connection structure according to any one of claims 1 to 4, characterized in that: The D-pillar cavity (160) is fixedly connected to the rear enclosure assembly (70) away from the outer wall of the top side beam cavity (130), and the C-ring cavity (140) is fixedly connected to the floor crossbeam assembly (80) away from the outer wall of the top side beam cavity (130).

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