CN-224225147-U - Rear longitudinal beam structure and vehicle

Abstract

The application relates to a rear longitudinal beam structure and a vehicle, which belong to the technical field of rear longitudinal beam structures and comprise a rear longitudinal beam body, a rear longitudinal beam end plate and a connecting piece; the rear longitudinal beam comprises a rear longitudinal beam body, a rear longitudinal beam end plate, a connecting piece and a connecting piece, wherein the rear longitudinal beam body is enclosed to form a containing cavity, the rear longitudinal beam end plate is arranged on one side of the rear longitudinal beam body and covers the containing cavity, the connecting piece is at least partially penetrated in the containing cavity and connected with the rear longitudinal beam body, and one side of the connecting piece, which is far away from the containing cavity, is connected with the rear longitudinal beam end plate. The overall thickness of the connecting piece is thinner, the occupied space is less, and the wiring harness and the pipeline can be conveniently arranged. In addition, the connecting piece is arranged, so that the connection stability of the rear longitudinal beam body and the rear longitudinal beam end plate can be enhanced, and the overall structural strength of the rear longitudinal beam structure is further improved. When the rear end of the vehicle collides at a low speed, deformation caused by insufficient structural strength of the rear longitudinal beam can be effectively avoided, the maintenance cost is reduced, and the safety performance of the vehicle is improved.

Inventors

• XU YESHENG
• BAO GUOJIAN
• XIANG SHENGTIAN

Assignees

• 浙江零跑科技股份有限公司

Dates

Publication Date

20260512

Application Date

20250514

Claims (10)

1. 1. A rear side rail structure, comprising: The rear longitudinal beam body is enclosed to form a containing cavity; The rear longitudinal beam end plate is arranged on one side of the rear longitudinal beam body and covers the accommodating cavity; the connecting piece is at least partially penetrated in the accommodating cavity and connected with the rear longitudinal beam body, and one side of the connecting piece, which is far away from the accommodating cavity, is connected with the rear longitudinal beam end plate.
2. 2. The rear side rail structure of claim 1, wherein the connector comprises a body portion and a first flange portion, the body portion is disposed through the receiving cavity and connected to the rear side rail body, and the first flange portion is respectively attached to the rear side rail body and the rear side rail end plate.
3. 3. The rear side frame structure according to claim 2, wherein the rear side frame body includes a first side frame and a second side frame, the first side frame and the second side frame are connected and enclose to form the accommodation chamber, and the body portion is connected to the first side frame and the second side frame, respectively.
4. 4. A rear side rail structure according to claim 3, wherein the second side rail is provided with a hemming portion which is fitted with the first hemming portion.
5. 5. The rear side rail structure of claim 4, wherein, The edge folding part is provided with a notch; The connecting piece comprises a plurality of first flanging parts which are arranged on the outer periphery side of the body part at intervals; The connecting piece comprises a second flanging part, and the second flanging part is arranged between two adjacent first flanging parts; The notch is at least partially covered by the orthographic projection of the second flanging part and the orthographic projection of the first flanging part along the arrangement direction of the rear longitudinal beam body and the rear longitudinal beam end plate.
6. 6. The rear rail structure of claim 1, wherein the connector comprises a body portion and a fixing portion, the fixing portion being connected to the body portion, the fixing portion being attached to the rear rail end plate, the fixing portion having a first mounting hole; the rear longitudinal beam end plate is provided with a second mounting hole which is arranged corresponding to the first mounting hole; The rear longitudinal beam structure comprises a fastener, and the fastener penetrates through the first mounting hole and the second mounting hole and is respectively connected with the rear longitudinal beam end plate and the fixing part.
7. 7. The rear side rail structure of claim 6, wherein the connecting member includes a guide portion between and connected to the fixing portion and the body portion, respectively.
8. 8. The rear rail structure of claim 1, wherein the rear rail structure comprises a plurality of welds, at least a portion of the welds connecting the rear rail body and the connector, at least a portion of the welds connecting the rear rail end plate and the connector, and at least a portion of the welds connecting the rear rail body, the rear rail end plate and the connector.
9. 9. The rear side rail structure of claim 1, wherein the rear side rail body is provided with a reinforcing rib.
10. 10. A vehicle comprising a rear side rail structure as claimed in any one of claims 1 to 9.

Description

Rear longitudinal beam structure and vehicle Technical Field The application relates to the technical field of rear longitudinal beam structures, in particular to a rear longitudinal beam structure and a vehicle. Background Along with the application and development of the intelligent and networking technology in the automobile industry, new requirements are put forward on how to effectively reduce the collision speed of urban road traffic accidents, effectively strengthen the structural strength of vehicles in low-speed collision, ensure that high-value lamps, sensors, radars, cameras and other parts can still keep normal functions, and reduce the maintenance cost of the vehicles. The existing vehicle rear longitudinal beam structure has the problem that the rear longitudinal beam is partially easy to deform in collision due to insufficient strength. Disclosure of utility model The embodiment of the application provides a rear longitudinal beam structure and a vehicle, which aim to at least partially solve the technical problems that the structural strength of the rear longitudinal beam is insufficient and the rear longitudinal beam is easy to deform locally in collision. In order to achieve the above object, according to a first aspect of the present application, there is provided a rear side member structure comprising: The rear longitudinal beam body is enclosed to form a containing cavity; The rear longitudinal beam end plate is arranged on one side of the rear longitudinal beam body and covers the accommodating cavity; The connecting piece is at least partially penetrated in the accommodating cavity and connected with the rear longitudinal beam body, and one side of the connecting piece, which is far away from the accommodating cavity, is connected with the rear longitudinal beam end plate. Optionally, the connecting piece includes body portion and first turn-ups portion, and body portion wears to locate the intracavity and is connected with the back longeron body, and first turn-ups portion is laminated with back longeron body and back longeron end plate respectively. Optionally, the rear longitudinal beam body comprises a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam are connected and enclosed to form a containing cavity, and the body part is respectively connected with the first longitudinal beam and the second longitudinal beam. Optionally, the second longitudinal beam is provided with a flanging part, and the flanging part is attached to the first flanging part. Optionally, the hemming portion has a notch; the connecting piece comprises a plurality of first flanging parts which are arranged on the outer periphery side of the body part at intervals; The connecting piece comprises a second flanging part, and the second flanging part is arranged between two adjacent first flanging parts; Wherein, along the direction of arranging of back longeron body and back longeron end plate, the at least partial coverage breach of orthographic projection of second turn-ups portion and orthographic projection of first turn-ups portion. Optionally, the connecting piece comprises a body part and a fixing part, the fixing part is connected with the body part, the fixing part is attached to the rear longitudinal beam end plate, and the fixing part is provided with a first mounting hole; the rear longitudinal beam end plate is provided with a second mounting hole which is arranged corresponding to the first mounting hole; the rear longitudinal beam structure comprises a fastener, and the fastener penetrates through the first mounting hole and the second mounting hole and is respectively connected with the rear longitudinal beam end plate and the fixing part. Optionally, the connecting piece includes a guiding portion, and the guiding portion is located between and connected with the fixing portion and the body portion, respectively. Optionally, the rear rail structure includes a plurality of welding spots, at least a portion of the welding spots connect the rear rail body and the connecting member, at least a portion of the welding spots connect the rear rail end plate and the connecting member, and at least a portion of the welding spots connect the rear rail body, the rear rail end plate and the connecting member. Optionally, the rear rail body is provided with a stiffener. According to a second aspect of the present application, an embodiment of the present application provides a vehicle including the rear side member structure described above. The application provides a rear longitudinal beam structure which comprises a rear longitudinal beam body, a rear longitudinal beam end plate and a connecting piece, wherein an accommodating cavity is formed by enclosing the rear longitudinal beam body, the rear longitudinal beam end plate is arranged on one side of the rear longitudinal beam body and covers the accommodating cavity, the connecting piece