WO2023088324A1

WO2023088324A1 - Rear side member, rear side member structure, and vehicle

Info

Publication number: WO2023088324A1
Application number: PCT/CN2022/132341
Authority: WO
Inventors: 刘家欣; 贺捷; 强昆昆; 冯永昌
Original assignee: 武汉路特斯汽车有限公司
Priority date: 2021-11-17
Filing date: 2022-11-16
Publication date: 2023-05-25
Also published as: CN114179911A; CN114179911B

Abstract

Disclosed are a rear side member, a rear side member structure, and a vehicle. The rear side member comprises a first plate (11), a second plate (12), a third plate (13), a fourth plate (14), and a fifth plate (15); a first side of the third plate (13) is disposed opposite to the first plate (11), and the second plate (12) is disposed between a first end of the third plate (13) and the first plate (11); a second side of the third plate (13) is disposed opposite to the fifth plate (15), and the fourth plate (14) is disposed between a second end of the third plate (13) and the fifth plate (15); the distance between the first end of the third plate (13) and the first plate (11) is less than the distance between the second end of the third plate (13) and the first plate (11); the fifth plate (15) is connected to a spring (20). The fifth plate of the rear side member provides an installation position for the spring, the third plate does not need to be connected to the spring, and the set direction of the third plate can solve the technical problem that it is difficult to demold the rear side member.

Description

A rear longitudinal beam, a rear longitudinal beam structure, and a vehicle

technical field

The invention relates to the field of vehicle structures, in particular to a rear longitudinal beam, a rear longitudinal beam structure and a vehicle.

Background technique

Vehicle rear side members are usually castings. Castings are subject to molding process reasons, so castings must be able to be released from the mold.

The rear longitudinal beam of the vehicle needs to be installed with an air spring, and the rear longitudinal beam of the vehicle body has an air spring installation surface, but when demoulding, the air spring installation surface of the rear longitudinal beam of the vehicle body will interfere with the demoulding direction, resulting in the rear longitudinal beam of the vehicle body not being able to be removed normally mold.

In the prior art, only a core-pulling slider can be added to the part mounting air spring profile to solve the problem of interference between the mounting surface and the ejection angle. Adding additional core-pulling sliders in the mold will increase the structural design and manufacturing difficulty of the mold, and greatly increase the manufacturing cost.

Contents of the invention

The invention provides a rear longitudinal beam, a rear longitudinal beam structure and a vehicle, which can at least solve the technical problem that the rear longitudinal beam is difficult to demould.

According to an aspect of the present application, there is provided a rear longitudinal beam, including a first board body, a second board body, a third board body, a fourth board body and a fifth board body;

The first side of the third plate is opposite to the first plate, and the second plate is arranged between the first end of the third plate and the first plate;

The second side of the third board is opposite to the fifth board, and the fourth board is arranged between the second end of the third board and the fifth board;

The distance between the first end of the third plate and the first plate is smaller than the distance between the second end of the third plate and the first plate;

The fifth board is connected with the spring.

In a possible implementation manner, the arrangement direction of the fifth board is perpendicular to the installation direction of the spring.

In a possible implementation manner, a sixth board body is further included, and the sixth board body is connected to the first board body.

In a possible implementation manner, the angle between the first board and the first direction is not less than 2°, and the angle between the third board and the first direction is not less than 2°, the first direction is the ejection direction of the rear longitudinal beam.

According to another aspect of the present application, a rear longitudinal beam structure is provided, including a rear longitudinal beam and a spring, and the rear longitudinal beam includes a first plate body, a second plate body, a third plate body, a fourth plate body and fifth board;

The spring is connected with the fifth board.

In a possible implementation manner, the rear longitudinal beam further includes a sixth board connected to the first board.

In a possible implementation manner, a pin is further included, and the pin is arranged on the spring and the fifth board.

According to another aspect of the present application, a vehicle is provided, including the above-mentioned rear side member structure.

In the present invention, a fifth plate body is added, and the fifth plate body can be connected with the spring to provide an installation position for the spring, and the third plate body does not need to be connected with the spring. The third plate is located between the first plate and the fifth plate, and the third plate can be inclined to the direction away from the first plate, the distance between the first end of the third plate and the first plate Less than the distance between the second end of the third board and the first board, thus making the installation direction of the third board the direction of easy demoulding, it can be seen that the present invention can solve the problem of spring installation while providing the spring installation position. The technical problem that the rear longitudinal beam is difficult to demould.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of a rear longitudinal beam structure according to an exemplary embodiment.

FIG. 2 is a schematic cross-sectional view along the A-A direction in FIG. 1 .

Detailed ways

Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

In addition, in order to better illustrate the present application, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present application may be practiced without certain of the specific details. In some instances, methods, means, components and circuits well known to those skilled in the art have not been described in detail in order to highlight the gist of the present application.

The invention provides a rear longitudinal beam, a rear longitudinal beam structure and a vehicle, which can at least solve the technical problem that the rear longitudinal beam is difficult to demould. The present invention is specifically realized by the following technical solutions.

As shown in FIG. 1 to FIG. 2 , a rear longitudinal beam 10 provided in the embodiment of this specification includes a first board body 11 , a second board body 12 , a third board body 13 , a fourth board body 14 and a fifth board body 15;

The first side of the third plate body 13 is arranged opposite to the first plate body 11, and the second plate body 12 is arranged between the first end of the third plate body 13 and the first plate body 11;

The second side of the third plate 13 is opposite to the fifth plate 15, and the fourth plate 14 is arranged between the second end of the third plate 13 and the fifth plate 15;

The distance between the first end of the third plate 13 and the first plate 11 is smaller than the distance between the second end of the third plate 13 and the first plate 11;

The fifth plate body 15 is connected with the spring 20 .

In the embodiment of this specification, a fifth board 15 is added, the fifth board 15 can be connected with the spring 20 , the fifth board 15 provides an installation position for the spring 20 , and the third board 13 does not need to be connected with the spring 20 . The third plate body 13 is located between the first plate body 11 and the fifth plate body 15, the third plate body 13 can be inclined to the direction away from the first plate body 11, the first end of the third plate body 13 is connected to the first plate body The distance between the plate bodies 11 is smaller than the distance between the second end of the third plate body 13 and the first plate body 11, so that the setting direction of the third plate body 13 is the direction of easy demoulding. It can be seen that this specification The embodiment can solve the technical problem that the rear side member 10 is difficult to demould while providing the installation position of the spring 20 .

In a possible implementation manner, the arrangement direction of the fifth plate body 15 is perpendicular to the installation direction of the spring 20 . In the embodiment of this specification, the installation direction of the fifth plate 15 is perpendicular to the installation direction of the spring 20, and the surface of the fifth plate 15 can match the surface of the spring 20, which improves the installation adaptability and makes the installation more reliable.

In a possible implementation manner, a sixth board body 16 is further included, and the sixth board body 16 is connected to the first board body 11 . In the embodiment of this specification, the first plate body 11 can be arranged obliquely away from the third plate body 13, the sixth plate body 16 can be connected to the first end of the first plate body 11, and the second plate body 12 can be connected to In the middle of the first plate body 11 , the second plate body 12 may be located near the second end of the first plate body 11 in the first plate body 11 . The sixth plate body 16 can extend away from the third plate body 13 . In the embodiment of the present specification, the arrangement direction of the first plate body 11 and the sixth plate body 16 is easy to demold, and the second plate body 12 is arranged in the middle of the first plate body 11 to improve the structural strength.

In a possible implementation manner, the angle between the first plate body 11 and the first direction is not less than 2°, the angle between the third plate body 13 and the first direction is not less than 2°, and the angle between the third plate body 13 and the first direction is not less than 2°. One direction is the ejection direction of the rear longitudinal member 10 . The rear side member 10 can be manufactured using a mold, and the first direction is the moving direction of the rear side member 10 when it leaves the mold. In the embodiment of this specification, the included angle between the first plate body 11 and the first direction can be set to not less than 2°, and the included angle angle between the third plate body 13 and the first direction can be set to not less than 2°. If the angle is less than 2°, the first plate body 11 and the third plate body 13 are easier to demould.

The present invention arranges the third plate body 13 in the direction of easy demoulding through ingenious structural design, while providing the installation position of the spring 20, it can solve the technical problem that the rear longitudinal beam 10 is difficult to demould; the fifth plate is added body 15, the fifth plate body 15 provides a mounting position for the spring 20, preventing interference between the mounting surface of the spring 20 and the ejection direction, and ensuring the manufacturability of the parts. The cast aluminum rear longitudinal beam 10 is designed with an S-shaped cross-section, so that the parts can be demolded in both left and right directions, so that the installation surface of the air spring 20 and the demoulding direction of the parts will no longer interfere, and the air spring 20 can be directly installed on the rear longitudinal beam 10 In addition, avoiding the use of large-area core-pulling sliders greatly reduces the difficulty of structural design and reduces the overall production cost.

The embodiment of this specification provides a rear longitudinal beam structure, including a rear longitudinal beam 10 and a spring 20. The rear longitudinal beam 10 includes a first plate body 11, a second plate body 12, a third plate body 13, a fourth plate body 14 and The fifth plate body 15;

The first side of the third board 13 is arranged opposite to the first board 11, and the second board 12 is arranged between the first end of the third board 13 and the first board 11;

The spring 20 is connected with the fifth plate body 15 .

In a possible implementation manner, the arrangement direction of the fifth plate body 15 is perpendicular to the installation direction of the spring 20 .

In a possible implementation manner, the rear longitudinal beam 10 further includes a sixth plate body 16 connected to the first plate body 11 .

In a possible implementation manner, the angle between the first plate body 11 and the first direction is not less than 2°, the angle between the third plate body 13 and the first direction is not less than 2°, and the angle between the third plate body 13 and the first direction is not less than 2°. One direction is the ejection direction of the rear longitudinal member 10 .

In a possible implementation manner, a pin is further included, and the pin is arranged on the spring 20 and the fifth plate body 15 .

In the embodiment of this specification, the spring 20 can be inserted into the fifth plate body 15 through a pin, and the pin can play a position-limiting role to ensure that the spring 20 can be firmly arranged on the fifth plate body 15 .

The embodiment of the present specification also provides a vehicle, including the above-mentioned rear longitudinal beam structure.

Having described various embodiments of the present application above, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles of the various embodiments, practical applications or technical improvements over technologies in the market, or to enable other persons of ordinary skill in the art to understand the various embodiments disclosed herein.

Claims

A rear longitudinal beam, characterized by comprising a first board body (11), a second board body (12), a third board body (13), a fourth board body (14) and a fifth board body (15) ;

The first side of the third plate (13) is arranged opposite to the first plate (11), and the second plate (12) is arranged at the first end of the third plate (13) and between the first plate body (11);

The second side of the third plate (13) is opposite to the fifth plate (15), and the fourth plate (14) is arranged at the second end of the third plate (13) and the fifth plate body (15);

The distance between the first end of the third plate (13) and the first plate (11) is smaller than the distance between the second end of the third plate (13) and the first plate (11) )the distance between;

The fifth plate body (15) is connected with the spring (20).
The rear longitudinal beam according to claim 1, characterized in that, the installation direction of the fifth board (15) is perpendicular to the installation direction of the spring (20).
The rear longitudinal beam according to claim 1, further comprising a sixth plate body (16), the sixth plate body (16) being connected to the first plate body (11).
The rear longitudinal beam according to claim 1, characterized in that, the included angle between the first board (11) and the first direction is no less than 2°, and the third board (13) and the first direction The included angle between the first directions is not less than 2°, and the first direction is the ejection direction of the rear longitudinal beam.
A rear longitudinal beam structure, characterized in that it comprises a rear longitudinal beam (10) and a spring (20), and the rear longitudinal beam (10) comprises a first plate body (11), a second plate body (12), a Three boards (13), the fourth board (14) and the fifth board (15);

The first side of the third plate (13) is arranged opposite to the first plate (11), and the second plate (12) is arranged at the first end of the third plate (13) and between the first plate body (11);

The second side of the third plate (13) is opposite to the fifth plate (15), and the fourth plate (14) is arranged at the second end of the third plate (13) and the fifth plate body (15);

The spring (20) is connected with the fifth plate body (15).
The rear longitudinal beam structure according to claim 5, characterized in that, the installation direction of the fifth board (15) is perpendicular to the installation direction of the spring (20).
The rear longitudinal beam structure according to claim 5, characterized in that, the rear longitudinal beam (10) further comprises a sixth plate body (16), the sixth plate body (16) and the first plate body (11) CONNECTION.
The rear longitudinal beam structure according to claim 5, characterized in that, the included angle between the first board (11) and the first direction is not less than 2°, and the third board (13) and The included angle between the first directions is not less than 2°, and the first direction is the ejection direction of the rear longitudinal beam.
The rear longitudinal beam structure according to claim 5, further comprising pins, said pins being arranged on said spring (20) and said fifth plate body (15).
A vehicle, characterized by comprising the rear longitudinal beam structure according to any one of claims 5 to 9.