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KR-20260066180-A - Vehicle rear structure and vehicle

KR20260066180AKR 20260066180 AKR20260066180 AKR 20260066180AKR-20260066180-A

Abstract

The present application discloses a vehicle rear structure and a vehicle. In the vehicle rear structure, a rear quarter window area is formed in the quarter inner panel penetrating it, and a D-pillar reinforcing panel, a roof cross member, and a roof rail outer panel are connected to each other at the upper side of the rear quarter window area to form a first load transfer path; a first outer member and a first inner member are both fixed to the lower side of the rear quarter window area and are respectively located on the outer and inner sides of the quarter inner panel; a C-pillar upper reinforcing panel is fixed to the outer side of the quarter inner panel, its upper end is fixedly connected to the roof rail outer panel, and has a portion that extends from the front side of the rear quarter window area to the lower side of the rear quarter window area and is fixedly connected to the first outer member; and the C-pillar upper reinforcing panel, the first outer member, and the first inner member have openings facing the quarter inner panel; The quarter inner panel forms a first outer cavity and a second outer cavity together with the C-pillar upper reinforcing panel and the first outer member in the front-rear direction, and the quarter inner panel also forms a first inner cavity together with the first inner member; on the front-rear sides of the second outer cavity and the first inner cavity, the first inner member, the quarter inner panel, and the first outer member form a laminated structure, and these three members are fixedly connected at the laminated structure portion.

Inventors

  • 진, 인장
  • 양, 지강
  • 왕, 충
  • 웨이, 윤롱
  • 왕, 샤오야
  • 린, 샹휘

Assignees

  • 저장 지커 인텔리전트 테크놀로지 씨오., 엘티디.
  • 쩌지앙 길리 홀딩 그룹 씨오., 엘티디.

Dates

Publication Date
20260512
Application Date
20250123
Priority Date
20240131

Claims (10)

  1. As a rear vehicle structure, It includes a quarter inner panel (2), a C-pillar upper reinforcing panel (3), a first outer member (4), a first inner member (5), a D-pillar reinforcing panel (6), a roof cross member (1), and a roof rail outer panel (7); A rear quarter window area is formed to penetrate the quarter inner panel (2), and the D-pillar reinforcing panel (6), the roof cross member (1), and the roof rail outer panel (7) are connected to each other at the upper side of the rear quarter window area to form a first load transfer path; The first outer member (4) and the first inner member (5) are both fixed to the lower side of the rear quarter window area and are respectively located on the outer and inner sides of the quarter inner panel (2); The C-pillar upper reinforcing panel (3) is fixed to the outside of the quarter inner panel (2), and the upper end of the C-pillar upper reinforcing panel (3) is fixedly connected to the roof rail outer panel (7), and the C-pillar upper reinforcing panel (3) has a portion that extends from the front side of the rear quarter window area to the lower side of the rear quarter window area and is fixedly connected to the first outer member (4); The above C-pillar upper reinforcing panel (3), the first outer member (4), and the first inner member (5) all have a structure in which an opening faces the quarter inner panel (2), and the first inner member (5) and the first outer member (4) are arranged so that their openings face each other; The quarter inner panel (2) forms a first outer cavity (8) together with the C-pillar upper reinforcing panel (3) in the front-rear direction and a second outer cavity (9) together with the first outer member (4), and the quarter inner panel (2) also forms a first inner cavity (10) together with the first inner member (5); A vehicle rear structure in which the first inner member (5), the quarter inner panel (2), and the first outer member (4) form a laminated structure at the front and rear sides of the second outer cavity (9) and the first inner cavity (10), and these three members are fixedly connected at the laminated structure portion.
  2. In paragraph 1, The D-pillar reinforcing panel (6), the roof cross member (1), and the roof rail outer panel (7) are connected to each other at the upper side of the rear quarter window area to form the L-shaped first load transfer path; The first external member (4) and the C-pillar upper reinforcing panel (3) are connected to each other to form a Y-shaped second load transfer path, and the second load transfer path is connected to the first load transfer path through the C-pillar upper reinforcing panel (3); The upper part of the quarter inner panel (2) is connected to the roof rail outer panel (7) and the D-pillar reinforcing panel (6), and the first inner member (5) and the quarter inner panel (2) are connected to each other to form a third load transfer path, and the third load transfer path is connected to the first load transfer path, forming a vehicle rear structure.
  3. In paragraph 1 or 2, It further includes a second external member (16) and a second internal member (17) located on the lower rear side of the above-mentioned rear quarter window area; The second outer member (16) is located at the rear of the first outer member (4), and the second inner member (17) is located at the rear of the first inner member (5); both the second outer member (16) and the second inner member (17) have a structure in which an opening faces the quarter inner panel (2); and the second inner member (17) and the second outer member (16) are arranged so that their openings face each other; The quarter inner panel (2) forms a third outer cavity (20) together with the second outer member (16) and a second inner cavity (21) together with the second inner member (17) at their respective different locations; At the front and rear sides of the third outer cavity (20) and the second inner cavity (21), the second outer member (16), the quarter inner panel (2), and the second inner member (17) form a laminated structure, and the vehicle rear structure is fixedly connected at the laminated structure portion.
  4. In paragraph 3, The first inner member (5) and the first outer member (4) are arranged so that their openings are aligned with each other; The second inner member (17) and the second outer member (16) are arranged so that their openings are aligned with each other; The above vehicle rear structure further includes a wheelhouse outer panel (12), and the second outer member (16) and the first outer member (4) are fixedly connected to the wheelhouse outer panel (12) at their respective lower ends.
  5. In paragraph 3 or 4, The above D-pillar reinforcing panel (6) has a portion that extends downward and backward along the rear quarter window area; The above portion of the D-pillar reinforcing panel (6) is fixedly connected to the upper end of the second external member (16); The second external member (16), the D-pillar reinforcing panel (6), and the loop cross member (1) are connected to each other to form a fourth load transfer path; The above-mentioned fourth load transfer path is a vehicle rear structure that follows a path around the rear side of the rear quarter window area and bypasses the rear quarter window area.
  6. In paragraph 3 or 4, It further includes a D-pillar inner panel (13); The above D-pillar inner panel (13) is fixedly connected to the above-mentioned roof cross member (1); The upper end of the second inner member (17) is fixedly connected to the D-pillar inner panel (13); The second inner member (17), the D-pillar inner panel (13), and the loop cross member (1) are connected to each other to form a fifth load transfer path; The above-mentioned fifth load transfer path is a vehicle rear structure that follows a path around the rear side of the rear quarter window area and bypasses the rear quarter window area.
  7. In paragraph 3 or 4, It further includes a wheelhouse inner panel (14); The lower end of the first inner member (5) and the lower end of the second inner member (17) are both fixedly connected to the wheelhouse inner panel (14); A rear vehicle structure having a first protruding channel (15) and a second protruding channel (19) formed in the wheelhouse inner panel (14) that protrude from the outside toward the inside, the upper end of the first protruding channel (15) is a connecting part between the lower end of the first inner member (5) and the wheelhouse inner panel (14), and the upper end of the second protruding channel (19) is a connecting part between the lower end of the second inner member (17) and the wheelhouse inner panel (14).
  8. In paragraph 3 or 4, It further includes a functional bracket (22) positioned to provide a mounting point on the seat assembly, wherein the functional bracket (22) is positioned between the first inner member (5) and the second inner member (17) and is also fixedly connected to the first inner member (5) and the second inner member (17); The first internal member (5), the second internal member (17), and the functional bracket (22) are connected to each other to form an H-shaped structure, forming a rear vehicle structure.
  9. In Paragraph 7, The above functional bracket (22) is also fixedly connected to the quarter inner panel (2); The connection portion between the functional bracket (22) and the first inner member (5), the connection portion between the functional bracket (22) and the second inner member (17), and the connection portion between the functional bracket (22) and the quarter inner panel (2) are each located at three different ends of the functional bracket (22); The three ends each correspond to the rear end, front end, and end near the outside of the vehicle body of the functional bracket (22), respectively, of the vehicle rear structure.
  10. As a vehicle, A vehicle comprising a rear vehicle structure according to any one of claims 1 to 9.

Description

Vehicle rear structure and vehicle [Cross-reference of related applications] This application claims priority to Chinese patent application No. 202410139712.5, filed with the Chinese Intellectual Property Office on January 31, 2024, with the title "Vehicle rear structure and vehicle," the entire contents of which are incorporated by reference into this application. [0001] The present application relates to the field of vehicle structural technology, but is not limited thereto, and specifically relates to vehicle rear structures and vehicles. [0002] From the front end of the vehicle body to the rear end, a C-ring is present in the vehicle body structure; in the relevant art, the C-ring comprises at least part of two opposing C-pillar assemblies and one roof cross member; ideally, the C-ring should be in the shape of a ring that is close to a parallelogram with rounded vertices. In the field of vehicle design, the structural strength and design rationality of the C-ring are one of the key factors determining vehicle performance, such as the load transfer efficiency of the vehicle body and torsional performance (e.g., torsional mode shape and torsional stiffness). [0003] However, the current C-ring structure reduces the performance of the vehicle body, such as load transfer efficiency, rigidity, and torsional performance. [0004] The following is an overview of the subject matter described in detail in this specification. This overview is not intended to limit the scope of the claims. [0005] The embodiments of the present application provide a vehicle rear structure and a vehicle. Various aspects related to the embodiments of the present application are described below. [0006] In a first aspect, the present application provides a vehicle rear structure comprising a quarter inner panel, a C-pillar upper reinforcing panel, a first outer member, a first inner member, a D-pillar reinforcing panel, a roof cross member, and a roof rail outer panel; a rear quarter window area is formed in the quarter inner panel that penetrates it, and the D-pillar reinforcing panel, the roof cross member, and the roof rail outer panel are connected to each other at the upper side of the rear quarter window area to form a first load transfer path; the first outer member and the first inner member are both fixed to the lower side of the rear quarter window area and are respectively located on the outer and inner sides of the quarter inner panel; the C-pillar upper reinforcing panel is fixed to the outer side of the quarter inner panel, and the upper end of the C-pillar upper reinforcing panel is fixedly connected to the roof rail outer panel, and the C-pillar upper reinforcing panel has a portion that extends from the front side of the rear quarter window area to the lower side of the rear quarter window area and is fixedly connected to the first outer member. [0007] The upper reinforcing panel of the C-pillar, the first outer member, and the first inner member all have a structure in which an opening faces the quarter inner panel, and the first inner member and the first outer member are arranged so that their openings face each other; the quarter inner panel forms a first outer cavity and a second outer cavity together with the upper reinforcing panel of the C-pillar and the first outer member in the front-rear direction, and the quarter inner panel also forms a first inner cavity together with the first inner member; on the front-rear side of the second outer cavity and the first inner cavity, the first inner member, the quarter inner panel, and the first outer member form a laminated structure, and these three members are fixedly connected at the laminated structure portion. [0008] Optionally, the D-pillar reinforcing panel, the roof cross member, and the roof rail outer panel are connected to each other at the upper side of the rear quarter window area to form an L-shaped first load transfer path; the first outer member and the C-pillar upper reinforcing panel are connected to each other to form a Y-shaped second load transfer path, and the second load transfer path is connected to the first load transfer path through the C-pillar upper reinforcing panel; the upper part of the quarter inner panel is connected to the roof rail outer panel and the D-pillar reinforcing panel, and the first inner member and the quarter inner panel are connected to each other to form a third load transfer path, and the third load transfer path is connected to the first load transfer path. [0009] Optionally, the vehicle rear structure further comprises a second outer member and a second inner member located at the lower rear side of the rear quarter window area; the second outer member is located at the rear side of the first outer member and the second inner member is located at the rear side of the first inner member, and both the second outer member and the second inner member have a structure in which an opening faces the quarter inner panel, and t