CN211336174U

CN211336174U - Front cross beam assembly of auxiliary frame, auxiliary frame and vehicle

Info

Publication number: CN211336174U
Application number: CN201921429420.6U
Authority: CN
Inventors: 刘丽丽; 高昌和
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-08-25
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a front beam assembly, sub vehicle frame and vehicle of sub vehicle frame, front beam assembly includes integrated into one piece and forms into tubulose front beam body (1) and be used for with the automobile body with linking bridge (2) of longeron connection in the sub vehicle frame, both ends of front beam body (1) all are provided with linking bridge (2). The front beam assembly of the auxiliary frame provided by the disclosure can give consideration to strength and light weight.

Description

Front cross beam assembly of auxiliary frame, auxiliary frame and vehicle

Technical Field

The disclosure relates to the technical field of automobiles, in particular to a front cross beam assembly of an auxiliary frame, the auxiliary frame and a vehicle.

Background

The front cross beam of the auxiliary frame is a first cross beam positioned behind a front bumper of the automobile body, and the cross beam is used for ensuring the torsional rigidity of the automobile frame and bearing longitudinal load and can also support main components on an automobile.

When the vehicle is in collision, the front cross beam can distribute energy generated by any type of offset and frontal collision to the two brackets as uniformly as possible, so that the energy is absorbed by the brackets to the maximum extent uniformly, and collision force is transmitted to other parts of the vehicle body uniformly. When the automobile collides with the road in the urban area at low speed and the like, the front bumper anti-collision beam plays a certain role in protecting parts such as a fender, a radiator, an engine hood, a lamp and the like.

In order to ensure the strength and rigidity of the front cross beam and improve the anti-collision performance of the front cross beam, the existing front cross beam is generally made of metal and has heavier mass, the heavier metal can bring the defect of high cost, the weight of the whole vehicle is influenced, and the energy conservation and emission reduction of the vehicle are not facilitated.

SUMMERY OF THE UTILITY MODEL

One object of the present disclosure is to provide a front cross member assembly of a subframe that can satisfy both strength and lightweight requirements.

Another object of the present disclosure is to provide a subframe that can meet both strength and weight reduction requirements.

It is yet another object of the present disclosure to provide a vehicle that can meet both strength and weight reduction requirements.

In order to achieve the above object, the present disclosure provides a front cross member assembly of a subframe, the front cross member assembly including a front cross member body integrally formed and formed in a tubular shape, and a connecting bracket for connecting with a vehicle body and a longitudinal beam in the subframe, the connecting bracket being provided at both end portions of the front cross member body.

Optionally, the connecting bracket includes a main bracket bent into a U shape by a plate, the main bracket includes a first connecting plate and a second connecting plate opposite to each other and an intermediate connecting plate connecting the first connecting plate and the second connecting plate, a connecting sleeve is disposed in the main bracket and penetrates through the front cross beam body, and a fastener penetrates through the main bracket, the connecting sleeve and the front cross beam body to connect the vehicle body, the front cross beam body and the longitudinal beam of the sub frame together.

Optionally, the first connecting plate is provided with a first through hole, the front cross beam body is coaxially provided with a second through hole and a third through hole, the second connecting plate is provided with a fourth through hole coaxial with the first through hole, one end of a connecting sleeve penetrates through the second through hole and abuts against the front cross beam body on the inner side of the third through hole, the other end of the connecting sleeve abuts against the side face of the first connecting plate facing the second connecting plate, so that the vehicle body can be connected with the longitudinal beam of the auxiliary frame together in a mode that the fastening piece penetrates through the first through hole into the connecting sleeve and penetrates out from the fourth through hole, the first connecting plate is provided with a fifth through hole used for being connected with the vehicle body, the first through hole is close to the middle connecting plate, and the fifth through hole is far away from the middle connecting plate.

Optionally, the side edge portion of the first connecting plate intersecting the intermediate connecting plate is bent to form a flange extending toward the intermediate connecting plate to be at least flush with the first through hole, and/or the flange extends toward the intermediate connecting plate to be at least flush with the fourth through hole.

Optionally, the connecting bracket further comprises an L-shaped ear plate, the ear plate is connected to the outer side of the second connecting plate and extends forwards after the second connecting plate extends transversely, and a first guard plate connecting portion used for being connected with the engine guard plate is arranged on the ear plate.

Optionally, the front cross member body has a square cross section and has a first side surface and a second side surface which are arranged opposite to each other, and the second connecting plate surface contacts with the second side surface.

Optionally, a second guard plate connecting portion for engine guard plate connection is provided on the front cross beam body so that the engine guard plate can be riveted to the front cross beam body by a rivet nut, the rivet nut including a rod portion and a head portion for a stopper, the rod portion being configured in a hexagonal prism structure, the rivet nut being provided with an axial through hole, a portion of the axial through hole corresponding to the head portion being configured as a rivet gun fitting hole portion, and the other portion being configured with an internal thread.

Optionally, a third guard plate connecting part for connecting an engine guard plate is arranged on the front cross beam body, so that the engine guard plate can be connected to the front cross beam body through a buckle.

Optionally, the front beam assembly further comprises a water pipe mounting bracket fixed to the front beam body, the water pipe mounting bracket is configured in a zigzag structure, two ends of the water pipe mounting bracket are connected to the front beam body, and a middle part of the water pipe mounting bracket is used for fixing a water pipe.

On above-mentioned technical scheme's basis, this disclosure still provides a sub vehicle frame, sub vehicle frame includes the front beam assembly of longeron and foretell sub vehicle frame.

On the basis of the technical scheme, the disclosure further provides a vehicle, and the vehicle comprises the auxiliary frame.

Through the technical scheme, namely the front beam assembly of the auxiliary frame provided by the disclosure, the front beam body can be designed to be integrally formed, so that necessary fasteners in segmented splicing can be avoided, the weight can be reduced, the light weight of the front beam assembly is facilitated, the production process is simplified, and the production cost is reduced; through being tubular structure with the design of front beam body, make it have confined cross section to improve the ability of resisting the deformation, be of value to the bulk strength who improves the front beam assembly, and through the both ends design linking bridge at the crossbeam body, can guarantee the front beam body respectively with the automobile body and sub vehicle frame in be connected between the longeron.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a front cross member assembly provided in accordance with an embodiment of the present disclosure;

FIG. 2 is a right side view of a front cross member body of a front cross member assembly provided in accordance with an embodiment of the present disclosure;

FIG. 3 is a left side view of a front cross member body of a front cross member assembly provided in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic perspective view of a support frame of a front cross member assembly provided according to an embodiment of the present disclosure;

FIG. 5 is a perspective view of a mounting bracket of a front cross member assembly provided in accordance with an embodiment of the present disclosure;

FIG. 6 is a schematic perspective view of a clinch nut of a front beam assembly provided in accordance with an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a rivet nut of a front rail assembly provided in accordance with an embodiment of the present disclosure.

Description of the reference numerals

1-front beam body; 11-a second via; 12-a third via; 13-a first side; 14-a second side; 141-a second apron connection; 142-a third apron connection portion; 2-connecting a bracket; 21-a first connection plate; 211 — a first via; 212-a fifth via; 22-a second connecting plate; 221-a fourth via; 23-an intermediate connection plate; 24-flanging; 25-ear plate; 251-a first apron connection portion; 3-connecting the sleeve; 4-water pipe mounting rack; 41-a threaded hole; 5-riveting a nut; 51-a stem portion; 52-a head; 53-axial through hole; 54-riveter fitting hole part; 55-internal thread.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the terms "first", "second", and the like are used, unless otherwise specified, to distinguish one element from another, without order or importance. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to the embodiment of the present disclosure, a front cross beam assembly of a subframe is provided, and as shown in fig. 1, the front cross beam assembly includes a front cross beam body 1 integrally formed and formed in a tubular shape, and a connecting bracket 2 for connecting with a vehicle body and a longitudinal beam in the subframe, and the connecting bracket 2 is provided at both end portions of the front cross beam body 1.

Through the technical scheme, namely the front beam assembly of the auxiliary frame provided by the disclosure, the front beam body 1 can be designed to be integrally formed, so that necessary fasteners in segmented splicing can be avoided, the weight can be reduced, the light weight of the front beam assembly is facilitated, the production process is simplified, and the production cost is reduced; through designing front beam body 1 into tubular structure, make it have confined cross section to improve the ability of resisting the deformation, be of value to the bulk strength who improves the front beam assembly, and through design linking bridge 2 at the both ends of crossbeam body 1, can guarantee front beam body 1 respectively with the automobile body and sub vehicle frame in be connected between the longeron.

When a vehicle collides, the front cross beam body 1 can uniformly disperse energy generated by the collision to the connecting brackets 2 at the two end parts, so that the collision energy is dispersedly transmitted to other parts of the vehicle by the connecting brackets 2, and the damage to the front cross beam body 1 is reduced.

According to the specific embodiment provided by the present disclosure, referring to fig. 1 and 4, in order to simplify the manufacturing process and reduce the manufacturing cost, the connecting bracket 2 may be designed to include a main bracket bent into a U-shape by a plate member. At the same time, the main frame is designed to be able to connect a first connecting plate 21 of the vehicle body, a second connecting plate 22 which is arranged opposite to the first connecting plate 21 and is able to connect a longitudinal beam of the subframe, and an intermediate connecting plate 23 which is located between the first connecting plate 21 and the second connecting plate 22. Wherein the intermediate connecting plate 23 enhances the structural strength of the main stand.

Specifically, referring to fig. 1 and 4, the second connecting plate 22 is provided with a fourth through hole 221 coaxial with the first through hole 211 by providing the first through hole 211 on the first connecting plate 21, and coaxially providing the second through hole 11 and the third through hole 12 on the front cross member body 1. In this way, the first through hole 211, the second through hole 11, the third through hole 12, the fourth through hole 221 and the hole corresponding to the longitudinal beam of the subframe can be sequentially penetrated from the hole corresponding to the vehicle body through the fastening piece and/or the connecting piece; or, the first through hole 211, the second through hole 11, the third through hole 12, the fourth through hole 221 and the corresponding hole of the vehicle body are sequentially penetrated through the corresponding holes of the longitudinal beam of the subframe through the fasteners and/or the connecting pieces so as to realize the connection of the vehicle body and the longitudinal beam of the sub-bracket.

In the embodiment provided by the present disclosure, referring to fig. 1, a connecting sleeve 3 is additionally provided between the front beam body 1 and the first connecting plate 21, and the connecting bracket 2 and the front beam body 1 are connected by the connecting sleeve 3, so that the connecting strength at this position can be increased. In this way, the connecting sleeve 3 enables the transmission of crash energy to the vehicle body to be cushioned in the event of a crash and to absorb some of the energy during the transmission. Specifically, one end of the link sleeve 3 passes through the second through hole 11 and abuts against the front cross member body 1 on the inner side of the third through hole 12, and the other end abuts against the side surface of the first link plate 21 facing the second link plate 22, so that the vehicle body, the front cross member body 1, and the side member of the sub-frame can be connected together by a fastening member passing through the link sleeve 3 from the first through hole 211 and passing out from the fourth through hole 221. Therefore, the connecting sleeves 3 do not extend out of the two ends of the connecting support 2, so that the installation of other parts of the automobile body is influenced, and the structural strength of the connecting sleeves 3 can be ensured.

In order to enhance the connection strength between the connecting bracket 2 and the vehicle body, as shown in fig. 4, a fifth through hole 212 for connecting with the vehicle body is provided on the first connecting plate 21, the first through hole 211 is provided close to the intermediate connecting plate 23, and the fifth through hole 212 is provided far from the intermediate connecting plate 23.

In the specific embodiment provided by the present disclosure, referring to fig. 1 to 4, at the same end of the front beam body 1, the number of the first through holes 211, the second through holes 11, the third through holes 12, and the fourth through holes 221 for connection is two, and the first through holes, the second through holes, the third through holes, and the fourth through holes are arranged at intervals in the transverse direction. In this way, the connection strength between the vehicle body and the first connection plate 21, the connection strength between the side member of the sub-frame and the second connection plate 22, and the connection strength between the connecting bracket 2 and the front cross beam body 1 can be enhanced by the connection between the corresponding two through holes and the fastening member.

In the embodiment provided in the present disclosure, referring to fig. 4, in order to enhance the structural strength of the connecting bracket 2 so that the first connecting plate 21 is not easily damaged when uneven stress occurs, the side edge portion of the first connecting plate 21 intersecting the intermediate connecting plate 23 is bent to form a flange 24.

Specifically, the burring 24 extends to be at least flush with the first through hole 211 toward a direction close to the intermediate connection plate 23, and/or the burring 24 extends to be at least flush with the fourth through hole 221 toward a direction away from the intermediate connection plate 23, thereby securing the structural strength thereof.

In the embodiment provided in the present disclosure, referring to fig. 4, the connecting bracket 2 further includes an L-shaped ear plate 25, and the ear plate 25 is connected to the outside of the second connecting plate 22 and extends first in the lateral direction and then in the forward (opening direction of the main bracket of the U-shape). Thus, the connecting bracket 2 can be made lightweight while ensuring its connecting effect. Further, a first guard connecting portion 251 for connection with the engine guard is provided on the lug plate 25, the first guard connecting portion 251 being formed as a first screw hole to enable the engine guard to be bolted and/or screwed to the front cross member body 1. Alternatively, the connection between the first guard connecting portion 251 and the engine guard may be a detachable connection in other manners.

In the embodiments provided in the present disclosure, as shown with reference to fig. 1 to 3, the front cross member body 1 has a square cross section. In this way, the square cross section can be fitted with the U-shaped connecting bracket 2 to achieve the connection. In particular, the square cross section has a first side 13 and a second side 14 which are arranged opposite one another, the second web 22 being in surface contact with the second side 14, and the connecting sleeve 3 being connected between the first web 21 and the first side 13.

In the embodiment provided by the present disclosure, as shown in fig. 1 and 3, a second fender connecting portion 141 for connecting with an engine fender is provided on the first side surface 13 of the front beam body 1, and the second fender connecting portion 141 is formed as a second screw hole so that the engine fender can be riveted to the front beam body 1 by the rivet nut 5.

In the specific embodiment provided by the present disclosure, as shown with reference to fig. 6 and 7, the clinch nut includes a stem portion 51 and a head portion 52 for a stopper, the stem portion 51 being configured in a hexagonal prism structure. Referring to fig. 6, the clinch nut 5 is provided with an axial through hole 53, a portion of the axial through hole 53 corresponding to the head portion 52 is configured as a clincher engaging hole portion 54, and another portion is configured with an internal thread 55. Specifically, as shown in fig. 7, the length of the rivet gun fitting hole portion 54 may be designed to be about 1/2 of the total length of the rivet nut 5, so that the rivet gun head can be inserted into the nut for fixed connection while satisfying the assembling strength.

In the embodiment provided by the present disclosure, as shown in fig. 1 and 3, a third fender connecting portion 142 for connecting an engine fender is provided on the first side surface 13 of the front cross member body 1, so that the engine fender can be connected to the front cross member body 1 by a snap fit.

In the specific embodiment provided by the present disclosure, as shown in fig. 1 and 5, a water pipe mounting bracket 4 for fixing a water pipe is connected to the first side surface 13 of the front cross member body 1, the water pipe mounting bracket 4 is configured in a zigzag structure, two ends of the zigzag are connected to the front cross member body 1, and the middle portion is used for fixing the water pipe. Specifically, the middle portion of the zigzag shape includes a screw hole 41 for fixing the water pipe.

Based on above-mentioned technical scheme, this disclosure still provides a sub vehicle frame, has the front beam assembly, and the front beam assembly that the front beam assembly provides for this disclosure, and consequently this sub vehicle frame has same advantage with the front beam assembly of above-mentioned sub vehicle frame, and it is no longer repeated here.

Based on above-mentioned technical scheme, this disclosure still provides a vehicle, has the sub vehicle frame, and the sub vehicle frame is the sub vehicle frame that this disclosure provided, therefore this vehicle has same advantage with foretell sub vehicle frame, and it is no longer repeated here.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The front beam assembly of the auxiliary frame is characterized by comprising a front beam body (1) which is integrally formed into a tubular shape and connecting supports (2) used for being connected with a vehicle body and longitudinal beams in the auxiliary frame, wherein the connecting supports (2) are arranged at two end parts of the front beam body (1), each connecting support (2) comprises a main support bent into a U shape through a plate, each main support comprises a first connecting plate (21) and a second connecting plate (22) which are opposite to each other and a middle connecting plate (23) for connecting the first connecting plate (21) and the second connecting plate (22), the first connecting plate (21) can be connected with the vehicle body, and the second connecting plate (22) can be connected with the longitudinal beams in the auxiliary frame.

2. The front cross beam assembly of the subframe according to claim 1, wherein a connecting sleeve (3) is provided in the main bracket and penetrates the front cross beam body (1), and a fastener penetrates the U-shaped main bracket, the connecting sleeve (3) and the front cross beam body (1) to connect the vehicle body, the front cross beam body (1) and the side member of the subframe together.

3. The front cross beam assembly of the subframe according to claim 2, wherein the first connecting plate (21) is provided with a first through hole (211), the front cross beam body (1) is coaxially provided with a second through hole (11) and a third through hole (12), the second connecting plate (22) is provided with a fourth through hole (221) coaxial with the first through hole (211), one end of the connecting sleeve (3) passes through the second through hole (11) and abuts against the front cross beam body (1) at the inner side of the third through hole (12), and the other end abuts against the side surface of the first connecting plate (21) facing the second connecting plate (22) so as to connect the subframe, the front cross beam body (1) and the side member of the subframe together in a manner that the fastening member can pass through the connecting sleeve (3) from the first through hole (211) and pass out from the fourth through hole (221), the first connecting plate (21) is provided with a fifth through hole (212) for being connected with a vehicle body, the first through hole (211) is close to the intermediate connecting plate (23) and is arranged, and the fifth through hole (212) is far away from the intermediate connecting plate (23).

4. The front cross-member assembly of the subframe according to claim 3, wherein a side edge portion of the first connecting plate (21) intersecting the intermediate connecting plate (23) is bent to form a flange (24), and the flange (24) extends toward a direction close to the intermediate connecting plate (23) to be at least flush with the first through hole (211), and/or the flange (24) extends toward a direction away from the intermediate connecting plate (23) to be at least flush with the fourth through hole (221).

5. The front cross-member assembly of the subframe according to claim 1, wherein the connecting bracket (2) further comprises an L-shaped lug plate (25), the lug plate (25) is connected to an outer side of the second connecting plate (22) and extends first in a lateral direction and then in a forward direction, and a first fender connecting portion (251) for connecting with an engine fender is provided on the lug plate (25).

6. The front cross-member assembly of the sub-frame according to any one of claims 1 to 5, wherein the front cross-member body (1) has a square cross-section and has a first side surface (13) and a second side surface (14) which are disposed opposite to each other, and the second connecting plate (22) is in face contact with the second side surface (14).

7. The front cross member assembly of the subframe according to claim 1, wherein a second fender connecting portion (141) for an engine fender connection is provided on the front cross member body (1) so that the engine fender can be riveted to the front cross member body (1) by a rivet nut (5), the rivet nut (5) includes a rod portion (51) and a head portion (52) for a stopper, the rod portion (51) is configured as a hexagonal prism structure, the rivet nut (5) is provided with an axial through hole (53), a portion of the axial through hole (53) corresponding to the head portion (52) is configured as a rivet fitting hole portion, and the other portion is configured with an internal thread.

8. The front cross member assembly of the sub-frame according to claim 1, wherein a third fender attachment portion (142) for attachment of an engine fender is provided on the front cross member body (1) so that the engine fender can be attached to the front cross member body (1) by snap-fitting.

9. The front cross beam assembly of the subframe according to claim 1, wherein the front cross beam assembly further comprises a water pipe mounting bracket (4), the water pipe mounting bracket (4) is fixed to the front cross beam body (1), the water pipe mounting bracket (4) is constructed in a zigzag structure, and both ends are connected to the front cross beam body (1), and a middle portion is used for fixing a water pipe.

10. A subframe comprising the front cross member assembly of the subframe of any one of claims 1-9.

11. A vehicle comprising the subframe of claim 10.