CN220163990U

CN220163990U - Front side member structure and vehicle

Info

Publication number: CN220163990U
Application number: CN202321589661.3U
Authority: CN
Inventors: 邓善良
Original assignee: Xiaomi Automobile Technology Co Ltd
Current assignee: Xiaomi Automobile Technology Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-12-12
Anticipated expiration: 2033-06-20

Abstract

The present disclosure relates to a front side rail structure and a vehicle, the front side rail structure including a first front side rail plate and a second front side rail plate, both of which extend in a front-rear direction of the vehicle, and the first front side rail plate and the second front side rail plate butt-joint with each other in a left-right direction of the vehicle and define a front side rail cavity; the first front longitudinal beam plate is provided with a first bending part, and the first bending part can allow the first front longitudinal beam plate to be bent when the vehicle is in front collision; the second front side rail plate is provided with a second bending portion capable of allowing the second front side rail plate to be bent when the vehicle is crashed. Through set up first kink on first preceding longitudinal beam board, set up the second kink on the preceding longitudinal beam board of second, when the vehicle took place the frontal collision, the setting of this first kink and second kink can allow the front longitudinal beam structure to buckle, can absorb collision energy effectively, and then makes passenger cabin regional deformation less, provides sufficient living space for passenger in the car.

Description

Front side member structure and vehicle

Technical Field

The disclosure relates to the technical field of vehicles, in particular to a front longitudinal beam structure and a vehicle.

Background

In the development of structural crashworthiness in the passive safety frontal crash conditions of vehicles, stringers are the primary structural members that absorb crash energy and transmit crash loads. Based on the fact that the overall crushing spaces of front cabins of various vehicle types are different in collision, the difference of arrangement modes of parts of the front cabins and the difference of connection modes of longitudinal beams, tower bags and front coaming cross beams are considered, and the longitudinal beams are designed with various crushing deformation modes in front collision. In the related art, when a longitudinal beam collides with the front, the situation of unstable crushing and insufficient energy absorption often occurs, and the safety coefficient is low.

Disclosure of Invention

In order to overcome the problems in the related art, the present disclosure provides a front side member structure to solve the technical problems in the related art.

According to a first aspect of an embodiment of the present disclosure, there is provided a front side rail structure including a first front side rail plate and a second front side rail plate, each of which extends in a front-rear direction of a vehicle, and which are butted to each other in a left-right direction of the vehicle and define a front side rail cavity; the first front longitudinal beam plate is provided with a first bending part which can allow the first front longitudinal beam plate to be bent when the vehicle is in front collision; the second front side rail plate is provided with a second bending portion capable of allowing the second front side rail plate to be bent when the vehicle is crashed.

In some embodiments, the first bending portion includes a first bending groove extending in an up-down direction and concavely disposed on an outer surface of the first front longitudinal beam plate; the first front longitudinal beam plate is used for being connected with a front shock absorber tower package, and the first bending groove is used for being arranged between two tower package upright columns of the front shock absorber tower package, which are arranged along the front-rear direction.

In some embodiments, the first front rail plate includes an upper plate, a side plate, and a lower plate, the upper plate and the lower plate being opposite and spaced apart in an up-down direction, the side plate connecting the upper plate and the lower plate;

the first bending part further comprises a first guiding groove and a second guiding groove, the first bending groove extends along the vertical direction and is concavely arranged on the outer surface of the side plate, the first guiding groove extends along the left-right direction and is concavely arranged on the outer surface of the upper plate, the second guiding groove extends along the left-right direction and is concavely arranged on the outer surface of the lower plate, and the first guiding groove, the first bending groove and the second guiding groove are positioned in the same vertical plane.

In some embodiments, the first front longitudinal beam plate is further provided with a first reinforcing member and a second reinforcing member, and the first reinforcing member and the second reinforcing member are disposed on the side plate and are respectively located on two sides of the first bending groove along the front-rear direction;

the first reinforcing piece comprises at least one first reinforcing rib, and the first reinforcing rib is arranged on the side plate in a manner of extending along the front-rear direction and is positioned on the front side of the first bending groove; and/or the second reinforcement comprises at least one second reinforcement rib, and the second reinforcement rib is arranged on the side plate in a manner of extending along the front-back direction and is positioned at the rear side of the first bending groove.

In some embodiments, the second bending portion includes a second bending groove and a third bending groove, the second bending groove and the third bending groove extend along an up-down direction and are concavely disposed on an outer surface of the second front longitudinal beam plate, the second bending groove and the third bending groove are disposed at intervals along a front-back direction, and in the front-back direction, the first bending groove is located between the second bending groove and the third bending groove.

In some embodiments, the second front rail plate is further provided with a third stiffener disposed between the second bending slot and the third bending slot;

the third reinforcing piece comprises at least one third reinforcing rib, and the third reinforcing rib is arranged between the second bending groove and the third bending groove in a manner of extending along the front-back direction.

In some embodiments, the front side rail structure further includes an inner reinforcement panel disposed within the front side rail cavity extending in a front-to-rear direction, and the inner reinforcement panel is connected with the first front side rail panel and/or the second front side rail panel;

the inner reinforcing plate is provided with a first weakening notch, a second weakening notch and a third weakening notch, the first weakening notch is opposite to the first bending groove, the second weakening notch is opposite to the second bending groove, and the third weakening notch is opposite to the third bending groove.

In some embodiments, the front rail structure further includes a reinforcement connector connected to the rear sides of the first and second front rail panels, and the reinforcement connector is for connection with the dash panel.

In some embodiments, the reinforcing connection comprises a first connection plate and a second connection plate, the first connection plate and the second connection plate being connected to each other at an angle;

the first connecting plate comprises a first plate section and a second plate section which are connected with each other, the first plate section is connected with the first front longitudinal beam plate, and the second plate section is connected with the first front longitudinal beam plate and the front coaming plate;

the second connecting plate comprises a third plate section and a fourth plate section which are connected with each other, the third plate section is connected with the second front longitudinal beam plate, and the fourth plate section is connected with the second front longitudinal beam plate and the front coaming.

The present disclosure also provides a vehicle including a dash panel, a front shock absorber tower package, and the front side rail structure, the rear end of the front side rail structure with the dash panel is connected, the first front side rail panel with the front shock absorber tower package is connected.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: through set up first kink on first preceding longitudinal beam board, set up the second kink on the preceding longitudinal beam board of second, when the vehicle took place the frontal collision, the setting of this first kink and second kink can allow the front longitudinal beam structure to buckle to can absorb collision energy effectively, and then guarantee that passenger cabin regional deformation is less, provide sufficient living space for passenger in the car.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 and 2 are schematic views of a front side member structure shown according to an exemplary embodiment, and a dash panel and a front shock absorber tower package are also shown in fig. 1 and 2.

Fig. 3 is a schematic view of a front side member structure according to an exemplary embodiment, and a front shock absorber tower package is also illustrated in the figure.

Fig. 4 is a schematic view showing a front side member structure according to an exemplary embodiment.

Fig. 5 is a schematic structural view of a reinforcement link of a front side member structure according to an exemplary embodiment, and a schematic structural view of a part of a dash panel is also illustrated in the figure.

Fig. 6 is a schematic structural view of an inner reinforcement plate of the front side member structure shown according to an exemplary embodiment.

Description of the reference numerals

1. First bending part of first front longitudinal beam plate 10

101. First bending groove 102 first induction groove

103. Second guiding groove 11 upper plate

12. Side plate 13 lower plate

14. First stiffener 141 first stiffener

15. Second reinforcing rib of second reinforcing member 151

2. Second bending part of second front longitudinal beam plate 20

201. Second bending groove 202 third bending groove

21. Third reinforcing rib of third reinforcing member 211

3. First weakening gap of inner reinforcement panel 31

32. Second weakening gap 33 third weakening gap

4. First connecting plate of reinforcing connecting piece 41

411. First plate segment 412 second plate segment

42. Third plate section of second connecting plate 421

422. Fourth plate segment 100 front shock absorber tower package

200. Front and rear direction of dash panel A

B left-right direction C up-down direction

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

In the present disclosure, unless otherwise specified, terms such as "up, down, front, rear, left, right" and "upper, lower, front, rear, left, right" are defined in the normal use state of the vehicle, and specifically refer to fig. 1; "inner and outer" refer to the inner and outer of a particular structural profile; the terms such as "first" and "second" are used merely to distinguish one element from another element and do not have order or importance.

Referring to fig. 1 to 6, the present disclosure provides a front side rail structure including a first front side rail panel 1 and a second front side rail panel 2, both of the first front side rail panel 1 and the second front side rail panel 2 extend in a front-rear direction a of a vehicle, and the first front side rail panel 1 and the second front side rail panel 2 are butted against each other in a left-right direction B of the vehicle and define a front side rail cavity. The first front longitudinal beam plate 1 is provided with a first bending part 10, and the first bending part 10 can allow the first front longitudinal beam plate 1 to bend when the vehicle is crashed; the second front rail 2 is provided with a second bending portion 20, and the second bending portion 20 is capable of allowing the second front rail 2 to be bent when the vehicle is crashed.

In the above technical scheme, through setting up first kink 10 on first front longitudinal beam board 1, set up second kink 20 on second front longitudinal beam board 2, when the vehicle took place the frontal collision, this first kink 10 and the setting of second kink 20 can allow the front longitudinal beam structure to buckle to can absorb collision energy effectively, and then guarantee that passenger cabin regional deformation is less, provide sufficient living space for passenger in the car.

In one embodiment, referring to fig. 1 and 3, the first bending portion 10 includes a first bending groove 101, and the first bending groove 101 extends in the up-down direction C and is concavely disposed on the outer surface of the first front longitudinal beam panel 1; the first front longitudinal beam panel 1 is configured to be connected to a front shock absorber tower package 100, and the first bending groove 101 is configured to be disposed between two tower package columns 1001 of the front shock absorber tower package 100 arranged in the front-rear direction a.

In this embodiment, the first bending portion 10 is configured as a first bending groove 101 extending in the up-down direction C, and the first bending groove 101 is provided so as to allow the front side member structure to be bent at the time of a frontal collision. The present disclosure is not limited to the specific structure of the first bending part 10. In addition, by disposing the first bending groove 101 between the two tower drum posts 1001 of the front shock absorber tower drum 100 disposed in the front-rear direction a, damage to the front shock absorber tower drum 100 is reduced as much as possible.

Alternatively, referring to fig. 1 and 3, the first front rail plate 1 includes an upper plate 11, a side plate 12, and a lower plate 13, the upper plate 11 and the lower plate 13 being opposite and spaced apart in the up-down direction C, the side plate 12 connecting the upper plate 11 and the lower plate 13. The first bending portion 10 further includes a first guiding groove 102 and a second guiding groove 103, the first bending groove 101 extends along the up-down direction C and is concavely disposed on the outer surface of the side plate 12, the first guiding groove 102 extends along the left-right direction B and is concavely disposed on the outer surface of the upper plate 11, the second guiding groove 103 extends along the left-right direction B and is concavely disposed on the outer surface of the lower plate 13, and the first guiding groove 102, the first bending groove 101 and the second guiding groove 103 are located in the same vertical plane.

In this embodiment, a first guiding groove 101 is provided on the upper plate 11, a second guiding groove 102 is provided on the lower plate 13, a first bending groove 101 is provided on the side plate 12, and the first guiding groove 101, the second guiding groove 102, and the first bending groove 101 are located in the same vertical plane. The first guiding groove 101 and the second guiding groove 102 are further beneficial to bending the front longitudinal beam structure at the first bending groove 101 when the front longitudinal beam structure is in front collision. The second front rail 2 may be provided outside the second front rail 1 in the left-right direction B.

Alternatively, referring to fig. 1 and 3, the first front side rail 1 is further provided with a first reinforcing member 14 and a second reinforcing member 15, and the first reinforcing member 14 and the second reinforcing member 15 are provided on the side plate 12 on both sides of the first bending groove 101 in the front-rear direction, respectively. The first reinforcement 14 includes at least one first reinforcement rib 141, and the first reinforcement rib 141 is disposed on the side plate 12 to extend in the front-rear direction and located at the front side of the first bending groove 101; and/or, the second reinforcement 15 includes at least one second reinforcement rib 151, and the second reinforcement rib 151 is disposed on the side plate 12 and located at the rear side of the first bending groove 101 so as to extend in the front-rear direction a.

In this embodiment, the arrangement of the first reinforcing member 14 and the second reinforcing member 15 can effectively enhance the structural strength of the front and rear sides of the first bending groove 101, effectively ensuring that bending occurs at the first bending groove 101. Further, the first reinforcement 14 may include a plurality of first reinforcement ribs 141, the first reinforcement ribs 141 being provided to the side plate 12 so as to extend in the front-rear direction and being located at the front side of the first bending groove 101, the plurality of first reinforcement ribs 141 being provided at intervals in the up-down direction C; the second reinforcement 15 may include a plurality of second reinforcement ribs 151, the second reinforcement ribs 151 being provided on the side plate 12 so as to extend in the front-rear direction a and being located at the rear side of the first bending groove 101, the plurality of second reinforcement ribs 151 being provided at intervals in the up-down direction C. The present disclosure is not limited to the specific structures of the first reinforcement 14 and the second reinforcement 15.

In another embodiment, referring to fig. 4, the second bending portion 20 includes a second bending groove 201 and a third bending groove 202, each of the second bending groove 201 and the third bending groove 202 extends in the up-down direction C and is concavely provided on the outer surface of the second front girder plate 2, the second bending groove 201 and the third bending groove 202 are provided at intervals in the front-rear direction a, and the first bending groove 101 is located between the second bending groove 201 and the third bending groove 202 in the front-rear direction a.

In this embodiment, when the vehicle collides with the front, after the energy is transmitted to the front side member structure, the second bending groove 201 is bent, the first bending groove 101 is bent, and the third bending groove 202 is bent, that is, the collision energy can be effectively absorbed by the bending at the three positions.

Further, referring to fig. 2 and 4, the second front side rail 2 is further provided with a third reinforcement 21, and the third reinforcement 21 is provided between the second bending groove 201 and the third bending groove 202; the third reinforcing member 21 includes at least one third reinforcing rib 211, and the third reinforcing rib 211 is disposed between the second bending groove 201 and the third bending groove 202 so as to extend in the front-rear direction a.

In this embodiment, the third reinforcing member 21 may effectively increase the strength of the second front rail 2 in the region between the second bending groove 201 and the third bending groove 202, so as to ensure that bending occurs at the second bending groove 201 and the third bending groove 202. In addition, the present disclosure is not limited to the specific structure of the third reinforcement 21. For example, the third reinforcing member 21 may include a plurality of third reinforcing ribs 211, the third reinforcing ribs 211 being provided between the second bending groove 201 and the third bending groove 202 so as to extend in the front-rear direction a, and the plurality of third reinforcing ribs 211 being provided at intervals in the up-down direction C.

Optionally, referring to fig. 6, the front side member structure further includes an inner reinforcing plate 3, the inner reinforcing plate 3 is disposed in the front side member cavity extending in the front-rear direction a, and the inner reinforcing plate 3 is connected with the first front side member plate 1 and/or the second front side member plate 2. The inner reinforcing plate 3 is formed with a first weakened notch 31, a second weakened notch 32, and a third weakened notch 33, the first weakened notch 31 is disposed opposite to the first bending groove 101, the second weakened notch 32 is disposed opposite to the second bending groove 201, and the third weakened notch 33 is disposed opposite to the third bending groove 202.

In this embodiment, by providing the inner reinforcement plate 3 in the front side member cavity, the structural strength of the front side member structure can be effectively improved. In addition, by providing the first weakened notch 31 opposing the first bending groove 101 in the inner reinforcing plate 3, providing the second weakened notch 32 opposing the second bending groove 201 in the inner reinforcing plate 3, and providing the third weakened notch 33 opposing the third bending groove 202 in the inner reinforcing plate 3, the strength of the front side member structure can be improved, and the first bending groove 101, the second bending groove 201, and the third bending groove 202 can be ensured to be bent.

Referring to fig. 5, the front side rail structure further includes a reinforcement link 4, the reinforcement link 4 being connected to the rear sides of the first and second front side rail panels 1 and 2, and the reinforcement link 4 being for connection with the dash panel 200. By providing the reinforcement link 4, the strength of the connection of the front side member structure with the dash panel 200 can be effectively improved. The reinforcing connector 4 may be configured in any suitable shape and configuration, which is not limited by the present disclosure.

In one embodiment, referring to fig. 5, the reinforcing connection 4 includes a first connection plate 41 and a second connection plate 42, the first connection plate 41 and the second connection plate 42 being connected to each other at an angle; the first connecting plate 41 includes a first plate segment 411 and a second plate segment 412 that are connected to each other, the first plate segment 411 being connected to the first front side rail panel 1, the second plate segment 412 being connected to the first front side rail panel 1 and the dash panel 200; the second connecting plate 42 includes a third plate section 421 and a fourth plate section 422 that are connected to each other, the third plate section 421 is connected to the second front rail panel 2, and the fourth plate section 422 is connected to the second front rail panel 2 and the dash panel 200.

In this embodiment, the arrangement of the first connecting plate 41 can effectively improve the connection strength of the first front rail 1 and the dash panel 200, and the arrangement of the second connecting plate 42 can effectively improve the connection strength of the second front rail 2 and the dash panel 200. In addition, the first plate segment 411 and the first front rail plate 1 may be connected by spot welding, the second plate segment 412 and the first front rail plate 1 and the dash panel 200 may be connected by spot welding while overlapping each other, the third plate segment 421 and the second front rail plate 2 may be connected by spot welding while the fourth plate segment 422 and the second front rail plate 2 and the dash panel 200 may be connected by spot welding while overlapping each other.

Alternatively, the first front rail plate 1, the second front rail plate 2, the inner reinforcing plate 3 and the reinforcing connection member 4 may be formed by stamping, but the present disclosure is not limited to the specific forming method.

Alternatively, the second front rail plate 2 and the inner reinforcing plate 3 may be formed of a heat-formed ultra-high strength steel in terms of material selection. For example, the second front longitudinal beam plate 2 is located at the outer side of the first front longitudinal beam plate 1 along the left-right direction B, and the second front longitudinal beam plate 2 may be made of steel with a model number of ducibor 1000 and a thickness of 1.4mm, which has good breaking elongation while taking strength into consideration, so as to avoid the problem that the front longitudinal beam structure is torn in the bending process. The inner reinforcing plate 3 may be made of steel of model number Usibor 1500 and thickness of 1.4mm. The first front longitudinal beam panel 1 may be made of dual phase steel DP800 and may have a thickness of 1.4mm. The reinforcing connection 4 may be made of dual phase steel DP800 and may have a thickness of 1.5mm.

Alternatively, the depth of the first bending groove 101 may be 4mm, and the dimension in the up-down direction C may be 20mm; the depth of the second bending groove 201 may be 3mm and the dimension in the up-down direction C may be 13mm; the depth of the third bending groove 202 may be 6mm and the dimension in the up-down direction C may be 30mm.

The present disclosure additionally provides a vehicle including a dash panel 200, a front shock absorber tower bag 100, and the front side member structure described above, the rear end of the front side member structure being connected with the dash panel 200, and the first front side member panel 1 being connected with the front shock absorber tower bag 100.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The front longitudinal beam structure is characterized by comprising a first front longitudinal beam plate and a second front longitudinal beam plate, wherein the first front longitudinal beam plate and the second front longitudinal beam plate extend along the front-rear direction of a vehicle, and the first front longitudinal beam plate and the second front longitudinal beam plate are mutually butted along the left-right direction of the vehicle and define a front longitudinal beam cavity; the first front longitudinal beam plate is provided with a first bending part which can allow the first front longitudinal beam plate to be bent when the vehicle is in front collision; the second front side rail plate is provided with a second bending portion capable of allowing the second front side rail plate to be bent when the vehicle is crashed.

2. The front side rail structure according to claim 1, wherein the first bending portion includes a first bending groove extending in an up-down direction and concavely provided on an outer surface of the first front side rail plate; the first front longitudinal beam plate is used for being connected with a front shock absorber tower package, and the first bending groove is used for being arranged between two tower package upright columns of the front shock absorber tower package, which are arranged along the front-rear direction.

3. The front side rail structure according to claim 2, wherein the first front side rail panel includes an upper panel, a side panel, and a lower panel, the upper panel and the lower panel being opposed in the up-down direction and being disposed at a spacing, the side panel connecting the upper panel and the lower panel;

4. The front side rail structure according to claim 3, wherein the first front side rail panel is further provided with a first reinforcement and a second reinforcement, which are provided to the side plates and are located on both sides of the first bending groove in the front-rear direction, respectively;

5. The front side rail structure according to claim 2, wherein the second bending portion includes a second bending groove and a third bending groove, the second bending groove and the third bending groove each extend in an up-down direction and are concavely provided on an outer surface of the second front side rail plate, the second bending groove and the third bending groove are provided at intervals in a front-rear direction, and the first bending groove is located between the second bending groove and the third bending groove in the front-rear direction.

6. The front side rail structure according to claim 5, wherein the second front side rail panel is further provided with a third reinforcement member disposed between the second bending groove and the third bending groove;

7. The front side rail structure according to claim 5, further comprising an inner reinforcement panel that is provided in the front side rail cavity so as to extend in the front-rear direction, and that is connected to the first front side rail panel and/or the second front side rail panel;

8. The front rail structure according to claim 1, further comprising a reinforcement link connected to rear sides of the first and second front rail panels, and the reinforcement link being for connection with a dash panel.

9. The front side rail structure according to claim 8, wherein the reinforcement link includes a first link plate and a second link plate, the first link plate and the second link plate being connected to each other at an angle;

10. A vehicle comprising a dash panel, a front shock absorber tower package, and the front side rail structure of any one of claims 1-9, wherein a rear end of the front side rail structure is connected to the dash panel, and wherein the first front side rail panel is connected to the front shock absorber tower package.