WO2022242325A1

WO2022242325A1 - Vehicle frame and vehicle

Info

Publication number: WO2022242325A1
Application number: PCT/CN2022/083864
Authority: WO
Inventors: 麻瑞祥
Original assignee: 长城汽车股份有限公司
Priority date: 2021-05-21
Filing date: 2022-03-29
Publication date: 2022-11-24
Also published as: CN114313012A

Abstract

A vehicle frame (100) and a vehicle. The vehicle frame (100) comprises: a front longitudinal beam (10) and a front floor; and a connection assembly having a front end connected to the front longitudinal beam (10), wherein the connection assembly is provided on the front floor, and the connection assembly comprises a plurality of connection beams which are sequentially connected and define a closed force transmission ring. By providing the connection assembly on a transition region (at least a portion of the front end of the front floor) between the front longitudinal beam (10) and the front floor, and attenuating and buffering collision energy by means of the connection assembly, the vehicle frame can reduce beam crush at a front dash region and the transition region (i.e., a foot region) during the occurrence of a small-overlap collision, thereby improving the driving safety factor, improving safety, and causing the strength of the vehicle frame (100) to meet a performance test for small-overlap collisions.

Description

Frames and Vehicles

This disclosure claims the priority of the Chinese patent application with the application number 202110556231.0 and the application name "Frame and Vehicle" submitted to the China Patent Office on May 21, 2021, the entire contents of which are incorporated in this disclosure by reference.

technical field

The present disclosure relates to the technical field of vehicles, in particular to a vehicle frame and a vehicle.

Background technique

In related technologies, with the improvement of living standards, the number of automobiles is gradually increasing, and the formal safety of vehicles has become an indicator of concern for consumers to judge vehicle performance.

Small offset collisions (that is, small-scale overlapping collisions of about 25%) are relatively strict performance indicators in vehicle performance testing. The strength is difficult to meet the relevant test requirements for small offset collisions. In the event of small offset collisions, the car will be damaged, and the space for the driver's footsteps will collapse and deform severely.

application content

The present disclosure aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present disclosure is to provide a vehicle frame with higher structural strength, which can meet the relevant test requirements for small offset collisions, and can effectively protect occupants after a small offset collision occurs.

The present disclosure further proposes a vehicle using the above vehicle frame.

The vehicle frame according to the embodiment of the first aspect of the present disclosure includes: a front longitudinal beam and a front floor; a connecting assembly, the front end of the connecting assembly is connected to the front longitudinal beam, and the connecting assembly is arranged on the front floor Above, the connection assembly includes a plurality of connection beams, which are sequentially connected and define a closed force transmission ring.

According to the vehicle frame of the embodiment of the present disclosure, by providing the connection assembly on the transition area between the front side member and the front floor (at least part of the front end of the front floor), the connection assembly attenuates and buffers the collision energy, and the occurrence of small deflections can be reduced. The collapse beams in the front wall and the transition area (that is, the foot area) during the collision can improve the driving safety factor, improve the safety, and make the strength of the frame meet the performance test of the small offset collision.

A vehicle according to an embodiment of the second aspect of the present disclosure includes: the frame of the vehicle described in the above embodiments.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Description of drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a partial schematic diagram of a vehicle frame according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a vehicle frame according to an embodiment of the present disclosure.

Reference signs:

frame 100,

Front longitudinal beam 10,

floor body 21, sill beam 22,

The rear end connecting beam 31 of the longitudinal beam, the first connecting beam 32, the middle channel connecting beam 33, the second connecting beam 34,

reinforcement plate 40 , reinforcement plate 50 , torsion plate 60 , floor stringer 70 , and A-pillar reinforcement plate 80 .

Detailed ways

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present disclosure and should not be construed as limiting the present disclosure.

A vehicle frame 100 and a vehicle according to an embodiment of the present disclosure will be described below with reference to FIGS. 1-2 .

As shown in FIG. 1 , the vehicle frame 100 according to the embodiment of the first aspect of the present disclosure includes: a front side member 10 , a front floor, and a connecting assembly.

Wherein, the front end of the connection assembly is connected to the front longitudinal beam 10, and the connection assembly is arranged on the front floor, and the connection assembly includes a plurality of connection beams, which are connected in sequence to define a hollow closed force transmission ring.

Specifically, when a small offset collision occurs to the vehicle, the left front side beam or the right front side beam of the vehicle collides, and the collision force is transmitted backward by the front side beam 10 to the transition area between the front floor and the front side beam 10 . A connecting component is set in the transition area, and the connecting component defines a closed force transmission ring. The collision force and collision energy continue to be transmitted backwards under the action of the closed force transmission ring, and the collision force and collision energy can be preliminarily measured through the closed force transmission ring. attenuation and buffering.

It can be understood that the transition area between the front floor and the front longitudinal beam 10 is directly facing the footwell of the front passenger in the cockpit. By setting the connecting components, the connecting components can effectively absorb the buffering collision force and collision energy, so as to reduce the transition The deformation of the area reduces the collapse and deformation of the front wall, improves the driving safety factor, and improves safety.

According to the vehicle frame 100 of the embodiment of the present disclosure, by providing the connection assembly on the transition area between the front side member 10 and the front floor (at least part of the front end of the front floor), the connection assembly attenuates and buffers the collision energy, which can reduce the occurrence of The collapsed beams in the cowl and the transition area (ie the foot area) during a small offset collision can improve the driving safety factor, improve safety, and make the strength of the vehicle frame 100 meet the performance test of a small offset collision.

In the specific embodiment shown in FIG. 1 , according to some embodiments of the present disclosure, the connection assembly includes: a rear end connection beam 31 of the longitudinal beam, a first connection beam 32 , a middle channel connection beam 33 and a second connection beam 34 , the rear end of the longitudinal beam The front ends of the connecting beam 31 and the first connecting beam 32 are all connected to the front longitudinal beam 10, the rear end of the longitudinal beam rear end connecting beam 31 and the rear end of the first connecting beam 32 extend away from each other, and the rear end of the first connecting beam 32 is connected to the rear end of the first connecting beam 32. The middle channel connecting beam 33 is connected, the rear end of the longitudinal beam rear connecting beam 31 is connected to one end of the second connecting beam 34 , and the other end of the second connecting beam 34 is connected to the middle channel connecting beam 33 to define a closed force transmission ring.

Specifically, one end of the first connecting beam 32 and the rear end connecting beam 31 of the longitudinal beam is connected with the front longitudinal beam 10, the other end of the rear end connecting beam 31 of the longitudinal beam is connected with the second connecting beam 34, and the other end of the first connecting beam 32 is connected with the middle The channel connecting beam 33 is connected, and the two ends of the second connecting beam 34 are respectively connected with the other end of the longitudinal beam rear end connecting beam 31 and the other end of the middle channel connecting beam 33, so as to define a closed force transmission ring as shown in Fig. 1 thick line , improve the force transmission effect, and effectively reduce the collapse of the corresponding area.

As shown in FIG. 2 , in some embodiments, the second connecting beam 34 extends along the left-right direction of the vehicle, and the extending direction of the second connecting beam 34 is perpendicular to the extending direction of the middle channel connecting beam 33 . In this way, the closed force transmission ring is generally configured as a "right-angled trapezoid", which can effectively improve the structural strength of the transition area between the front floor and the front longitudinal beam 10 .

It can be understood that the front floor includes: the floor body 21 and the sill beams 22 located on both sides of the floor body 21, the rear end connecting beam 31 of the longitudinal beam, the first connecting beam 32, the middle channel connecting beam 33 and the second connecting beam 34 are all connected to the floor The body 21 is fixed and defines a cavity with the floor body 21 . As a result, the structural strength of the transition region between the front floor and the front side member 10 can be further increased due to the cavity structure.

As shown in FIG. 2 , the vehicle frame 100 further includes a reinforcing plate 40 and a reinforcing plate 50 , both of which are disposed in the first cavity defined by the rear connecting beam 31 of the longitudinal beam and the floor body 21 .

Specifically, the reinforcement board 40 and the reinforcement board 50 are arranged at intervals in the direction away from the floor body 21, and the reinforcement board 50 and the reinforcement board 40 divide the first cavity into the first cavity arranged in sequence in the direction away from the floor body 21. A sub-cavity, a second sub-cavity and a third sub-cavity.

In this way, the structural strength of the longitudinal beam rear end connecting beam 31 located at the rear end of the front longitudinal beam 10 can be improved, and the three sub-cavities are stacked in the height direction of the vehicle, which can further improve the bending and torsional strength and the collapse resistance of the longitudinal beam rear end connecting plate , to further increase the structural strength of the connection assembly, so as to increase the structural strength and safety factor of the vehicle frame 100 .

In the specific embodiment shown in Figure 2, the vehicle frame 100 also includes a torsion box, a torsion plate 60, one end of the torsion plate 60 is connected to the rear end connecting beam 31 of the longitudinal beam, and the other end of the torsion plate 60 is connected to the door sill beam 22 to define Out of the torsion cavity, the torsion cavity, the first cavity and the sill cavity of the sill beam 22 are sequentially arranged in the transverse direction of the vehicle.

That is to say, a first cavity is defined between the floor body 21 and the rear end connecting beam 31 of the longitudinal beam, the threshold beam 22 itself has a threshold cavity, and the torsion cavity is defined between the torsion plate 60 and the floor body 21 and the threshold beam 22, In the left and right directions of the vehicle, the three cavities are connected to realize the lateral superposition of the force transmission path, so as to realize the balance of the collision force and collision energy in the height direction (longitudinal direction) of the vehicle and the left and right direction (transverse direction) of the vehicle after a collision occurs. The connection further improves the force bearing, increases the mechanical transmission path, improves the mechanical transmission effect, and effectively reduces the collapse and bending and torsion deformation.

According to some embodiments of the present disclosure, the front floor further includes: a floor stringer 70 and an A-pillar reinforcement plate 80, the floor stringer 70 is connected to the rear end of the rear end connecting beam 31 of the stringer, and the A-pillar reinforcement plate 80 is arranged on the rear end connecting beam of the stringer 31 on the middle area. Thus, the structural strength of the vehicle frame 100 can be further improved.

It can be understood that the vehicle frame 100 is configured as a symmetrical structure. The front side beam 10 can be a left front side beam or a right front side beam, and the corresponding connection components can be a left connection component, a right connection component, and the door sill beam 22 is a left door sill beam or a right door sill beam, so that a small offset collision occurs at the left end of the vehicle Or when there is a small offset collision on the right side, there will be no large collapse deformation, which effectively improves the driving safety of the vehicle.

The vehicle according to the embodiment of the second aspect of the present disclosure includes: the frame 100 of the vehicle in the above embodiment.

According to the vehicle of the embodiment of the present disclosure, the vehicle frame 100 in the above embodiment is used to make the vehicle of the disclosure more safe to ride, and can meet the corresponding test of small offset collision, and improve the product competitiveness of the vehicle of the disclosure.

In describing the present disclosure, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limitations on the present disclosure.

In the description of the present disclosure, "first feature" and "second feature" may include one or more of these features.

In the description of the present disclosure, "plurality" means two or more.

In the description of the present disclosure, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but pass through them. Additional feature contacts between.

In the description of the present disclosure, "above", "above" and "above" a first feature on a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than Second feature.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.

Claims

A vehicle frame (100), characterized in that it comprises:

Front longitudinal beam (10) and front floor;

A connection assembly, the front end of which is connected to the front longitudinal beam (10), the connection assembly is arranged on the front floor, and the connection assembly includes a plurality of connection beams, which are sequentially connected and define Out of the closed force transmission ring.
The vehicle frame (100) according to claim 1, characterized in that, the connecting assembly comprises: a rear end connecting beam (31) of the longitudinal beam, a first connecting beam (32), a middle channel connecting beam (33) and a second Two connecting beams (34), the front ends of the longitudinal beam rear end connecting beam (31) and the first connecting beam (32) are all connected with the front longitudinal beam (10), and the longitudinal beam rear end connecting beam (31) The rear end and the rear end of the first connecting beam (32) extend away from each other, and the rear end of the first connecting beam (32) is connected to the middle channel connecting beam (33), and the rear end of the longitudinal beam is connected to the beam The rear end of (31) is connected with one end of the second connecting beam (34), and the other end of the second connecting beam (34) is connected with the middle channel connecting beam (33) to define the closed force transmission ring .
The vehicle frame (100) according to claim 2, characterized in that, the second connecting beam (34) extends along the left-right direction of the vehicle, and the extending direction of the second connecting beam (34) is in line with the The extension direction of the passage connecting beam (33) is orthogonal.
The vehicle frame (100) according to any one of claims 2-3, characterized in that the front floor comprises: a floor body (21) and sill beams (22) located on both sides of the floor body (21) ), the longitudinal beam rear end connecting beam (31), the first connecting beam (32), the middle channel connecting beam (33) and the second connecting beam (34) are all connected to the floor body (21) It is fixed and defines a cavity with the floor body (21).
The vehicle frame (100) according to claim 4, further comprising: a reinforcing plate (40) and a reinforcing plate (50), the reinforcing plate (40) and the reinforcing plate (50 ) are all arranged in the first cavity defined by the rear end connecting beam (31) of the longitudinal beam and the floor body (21).
The vehicle frame (100) according to claim 5, characterized in that, the reinforcement plate (40) and the reinforcement plate (50) are arranged at intervals in a direction away from the floor body (21), And the reinforcement board (50) and the reinforcement board (40) divide the first cavity into a first sub-cavity and a second sub-cavity arranged in sequence in a direction away from the floor body (21). cavity and the third sub-cavity.
The vehicle frame (100) according to any one of claims 4-6, further comprising: a torsion plate (60), one end of the torsion plate (60) is connected to the rear end of the longitudinal beam (31) connection, the other end of the torsion plate (60) is connected to the threshold beam (22) to define a torsion cavity, the torsion cavity, the first cavity and the threshold beam (22 ) are arranged successively in the transverse direction of the vehicle.
The vehicle frame (100) according to any one of claims 1-7, characterized in that, the front floor further comprises: a floor longitudinal beam (70) and an A-pillar reinforcement plate (80), and the floor The longitudinal beam (70) is connected to the rear end of the longitudinal beam rear end connecting beam (31), and the A-pillar reinforcement plate (80) is arranged on the middle area of the longitudinal beam rear end connecting beam (31).
The vehicle frame (100) according to any one of claims 1-8, characterized in that, the frame (100) is configured as a symmetrical structure.
A vehicle, characterized by comprising: the vehicle frame (100) according to any one of claims 1-9.