CN213948579U

CN213948579U - Vehicle body frame reinforcing structure and vehicle body frame assembly

Info

Publication number: CN213948579U
Application number: CN202022418926.6U
Authority: CN
Inventors: 孙恒; 杜文鑫; 李国林; 孙连有; 陈宏强; 徐云
Original assignee: Ningbo Jikrypton Intelligent Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Current assignee: Ningbo Jikrypton Intelligent Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-08-13
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a vehicle body frame reinforcing structure, which comprises a reinforcing plate component and a vehicle body frame component which are fixedly connected, wherein a hollow cavity with a sealed edge is arranged between the reinforcing plate component and the vehicle body frame component; the vehicle body frame assembly comprises a supporting inner plate and a first edge beam which are fixedly connected, the supporting inner plate is positioned on one side of the first edge beam, and the reinforcing plate assembly is positioned on the other side of the first edge beam; the upper portion of the reinforcing plate assembly is fixedly connected with the first side beam, and the lower portion of the reinforcing plate assembly is fixedly connected with the supporting inner plate. This automobile body frame additional strengthening makes the end position form confined tee bend cavity, and connection structure is stable sealed, and non-deformable and rocking have promoted the NVH performance of vehicle, have still guaranteed the lightweight of vehicle simultaneously.

Description

Vehicle body frame reinforcing structure and vehicle body frame assembly

Technical Field

The utility model relates to an automobile parts technical field especially relates to an automobile body frame additional strengthening and automobile body frame assembly.

Background

With the rapid development of the automobile industry, the automobile related technology is more mature. The NVH performance of an automobile is one of important performances to be considered in the automobile development and design stage, and the importance of the NVH performance is equal to the safety, the dynamic performance, the fuel economy, the emission, the noise pollution and the like of the automobile, and the NVH quality is closely related to the mode of a white automobile body. The C column is a supporting upright column between a rear vehicle door and a rear windshield generally and penetrates through a vehicle top cover and a lower vehicle body, the end structure of the C column is an important joint position in a vehicle body frame, the structural stability of the C column directly influences the rigidity and the mode of the vehicle body frame, and therefore a C column reinforcing plate is often arranged on the C column to improve the overall strength. In the prior art, because of the structural characteristics of peripheral parts, the C-pillar reinforcing plate is often incomplete lap joint when being connected with a plurality of peripheral parts, so that a cavity is left at the joint of the C-pillar reinforcing plate and other peripheral parts, the connection is not tight, the strength of the end is weak, and especially when a vehicle jolts, the C-pillar reinforcing plate is easy to loosen and impact with the peripheral parts, generates noise, even deforms, and affects user experience. Therefore, a vehicle body frame reinforcing structure is needed, the vehicle body frame is optimized, the strength of the end head is enhanced, the structure is more stable and closed, and the white vehicle body mode of a vehicle is improved.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides an automobile body frame additional strengthening makes automobile body frame's end form the stable structure of high strength, promotes white automobile body mode, is favorable to the promotion of NVH performance.

The utility model provides a vehicle body frame reinforcing structure, which comprises a reinforcing plate component and a vehicle body frame component which are fixedly connected, wherein a hollow cavity with a sealed edge is arranged between the reinforcing plate component and the vehicle body frame component; the vehicle body frame assembly comprises a supporting inner plate and a first edge beam which are fixedly connected, the supporting inner plate is positioned on one side of the first edge beam, and the reinforcing plate assembly is positioned on the other side of the first edge beam; the upper portion of the reinforcing plate assembly is fixedly connected with the first side beam, and the lower portion of the reinforcing plate assembly is fixedly connected with the supporting inner plate.

Further, the reinforcing plate assembly comprises an upper reinforcing plate and a middle reinforcing plate, and the upper reinforcing plate is fixedly connected with the middle reinforcing plate.

Furthermore, the middle part of going up the reinforcing plate is well cavity, the edge of going up the reinforcing plate is provided with first connecting portion, second connecting portion and third connecting portion, first connecting portion with first boundary beam fixed connection, the second connecting portion with support inner panel fixed connection, the third connecting portion with the top fixed connection of well reinforcing plate.

Furthermore, the first connecting portion with the second connecting portion are of a bent structure, the first connecting portion is matched with the first edge beam, and the second connecting portion is matched with the support inner plate.

Preferably, the upper reinforcing plate is a T-shaped plate.

Furthermore, a hollow cavity is formed between the middle reinforcing plate and the supporting inner plate, and the edge of the middle reinforcing plate is matched and fixedly connected with the supporting inner plate.

Further, the vehicle body frame assembly further comprises a second side beam, and one end of the second side beam is fixedly connected with the first side beam.

Preferably, the second edge beam comprises a connecting end, the connecting end is fixedly connected with the first edge beam, and the connecting end and the support inner plate are located on the same side of the first edge beam.

Preferably, the first edge beam and the second edge beam are welded together in a secondary protection mode.

The utility model also provides an automobile body frame assembly, including above automobile body frame additional strengthening.

Implement the utility model discloses, following beneficial effect has:

1. the reinforcing plate component improves the rigidity of the vehicle body frame, the edge of the reinforcing plate component is connected with the joints of the supporting inner plate and the first edge beam in a tightly sealed mode, so that the joints are stable in structure and not prone to shaking or deforming, and the overall strength of the connecting end is improved.

2. The middle part of the reinforcing plate component forms a stable cavity with a closed edge, and the lightweight of a vehicle is facilitated.

3. The second boundary beam is only directly connected with the first boundary beam, and the reinforcing plate assembly is not directly connected with the second boundary beam, so that the condition that the rigidity is weak due to the fact that the traditional reinforcing plate and the second boundary beam are not tightly lapped is avoided, noise pollution caused by mutual collision of lapped parts during bumping is also avoided, and the NVH performance of the connecting end of the vehicle body frame is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein the same components are denoted by the same reference numerals. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is an outboard structural view of a vehicle body frame reinforcement structure;

FIG. 2 is an inside structural view of the vehicle body frame reinforcing structure;

FIG. 3 is an exploded perspective view of the vehicle body frame reinforcing structure;

FIG. 4 is a schematic structural view of a stiffener assembly;

FIG. 5 is an enlarged view showing the connection relationship of the upper reinforcing plates;

FIG. 6 is a cross-sectional view of section A-A of FIG. 5;

FIG. 7 is a cross-sectional view of section B-B of FIG. 5;

FIG. 8 is a cross-sectional view of section C-C of FIG. 5;

fig. 9 is a cross-sectional view of section D-D in fig. 5.

Wherein the reference numerals in the figures correspond to: 1-supporting inner plate, 2-first edge beam, 3-second edge beam, 31-connecting end, 4-upper reinforcing plate, 41-first connecting part, 42-second connecting part, 43-third connecting part, 5-middle reinforcing plate and 6-hollow cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

the embodiment provides a vehicle body frame assembly, which comprises a vehicle body frame reinforcing structure, as shown in fig. 1-3 in the specification, the vehicle body frame reinforcing structure comprises a reinforcing plate component and a vehicle body frame component which are fixedly connected, a hollow cavity 6 with a closed edge is formed between the reinforcing plate component and the vehicle body frame component, and the hollow cavity 6 can reduce the weight of the reinforcing plate component and is beneficial to the light weight of the vehicle body frame assembly; in the embodiment, the vehicle body frame reinforcing structure is used for optimizing the structure of the upper end head of the C column; in other embodiments of the present disclosure, the body frame reinforcement structure may also be used to optimize the structure of other portions of the body frame assembly to meet the stiffness and NVH performance requirements of the vehicle body, such as the a-pillar end and the B-pillar end.

Specifically, the vehicle body frame assembly comprises a supporting inner plate 1 and a first side beam 2 which are fixedly connected, the specification and the attached drawing 2 show an inner side structure schematic diagram of the vehicle body frame reinforcing structure, wherein the supporting inner plate 1 is positioned on one side of the first side beam 2, the specification and the attached drawing 1 show an outer side structure schematic diagram of the vehicle body frame reinforcing structure, the reinforcing plate assembly is positioned on the other side of the first side beam 2, and the first side beam 2 simultaneously penetrates through the upper part of the reinforcing plate assembly and the upper part of the supporting inner plate 1, so that the upper part of the reinforcing plate assembly and the upper part of the supporting inner plate 1 can be directly fixed on the first side beam 2 in the connection process, the fixing is tight and firm, and in the position, the reinforcing plate assembly, the first side beam 2 and the supporting inner plate 1 are superposed into a three-layer structure, and the strength is higher; when the force borne by the vehicle body frame reinforcing structure is transmitted to any one of the three parts, the force can be transmitted to the other two parts through the first edge beam 2, the force transmission is smooth without interruption, the local stress concentration is avoided, the vehicle body frame is further prevented from cracking, and the service life is prolonged; in one embodiment of the present disclosure, the supporting inner panel 1 is a C-pillar inner panel, the first side beam 2 is a rear quarter window upper side beam, and the vehicle body frame reinforcing structure is used for reinforcing the strength of the upper end head of the C-pillar and optimizing the NVH performance of the upper end head of the C-pillar.

Specifically, in the present embodiment, as shown in fig. 4, the reinforcing plate assembly includes an upper reinforcing plate 4 and a middle reinforcing plate 5, and the bottom of the upper reinforcing plate 4 is fixedly connected to the top of the middle reinforcing plate 5.

Preferably, as shown in fig. 4-5, in this embodiment, the upper reinforcing plate 4 is a T-shaped plate, and the width of the upper portion of the T-shaped plate is greater than that of the lower portion of the T-shaped plate, as shown in fig. 5, based on the direction of the coordinate system shown in the drawing, the left side of the upper portion of the upper reinforcing plate 4 is a first end, the right side of the upper portion of the upper reinforcing plate 4 is a second end, and one end of the lower portion of the upper reinforcing plate 4 is a third end, so that the upper reinforcing plate 4 forms a three-end structure, and at this time, the hollow cavity 6 formed by the upper reinforcing plate 4 and the vehicle body frame assembly is a stable three-way structure, which is beneficial to improving the strength and stability of the end structure.

Specifically, as shown in fig. 5, the middle of the upper reinforcing plate 4 is a hollow cavity 6, and a first connecting portion 41, a second connecting portion 42 and a third connecting portion 43 are disposed at edges of the upper reinforcing plate 4, wherein the first connecting portion 41 is fixedly connected to the first edge beam 2, as shown in fig. 4, the first connecting portion 41 is located at an upper portion of the upper reinforcing plate 4, and includes the first end and the second end of the T-shaped plate as described above, and also includes a top edge of the upper reinforcing plate 4, so as to ensure the tightness of the connection between the first connecting portion 41 and the first edge beam 2.

Specifically, the second connecting portion 42 is fixedly connected to the supporting inner panel 1, as shown in fig. 1-3 of the specification, the first edge beam 2 is only located at the upper portion of the upper reinforcing plate 4, and the second connecting portion 42 is fixedly connected to the outer side edge of the supporting inner panel 1 across the first edge beam 2 at the lower portion of the upper reinforcing plate 4, as shown in fig. 4, the top end of the second connecting portion 42 is integrally connected to the bottom end of the first connecting portion 41, and the second connecting portion 42 is located at two side edges of the lower portion of the upper reinforcing plate 4, so as to be conveniently connected to the supporting inner panel 1 in a sealing manner.

Preferably, the first connecting portion 41 and the second connecting portion 42 are both of a bent structure, as shown in the cross-sectional view of the section B-B in fig. 7 and the cross-sectional view of the section C-C in fig. 8, the first connecting portion 41 is matched with the first side rail 2, the bent structure faces the inside of the vehicle body frame and is attached to the outer edge of the first side rail 2, the second connecting portion 42 is matched with the edge of the supporting inner panel 1, and the bent structure of the second connecting portion 42 is attached to the outer edge of the supporting inner panel 1, so that when the fixed connection is performed, no gap is formed at the connection position of the upper reinforcing plate 4, and the edge of the hollow cavity 6 inside the upper reinforcing plate 4 is sealed and firmly connected.

Specifically, the third connecting portion 43 is located at the bottom end of the upper reinforcing plate 4, and the third connecting portion 43 is fixedly connected with the top of the middle reinforcing plate 5; in one embodiment of the present description, as shown in the cross-section D-D of fig. 9, the third connecting portion 43 may be selected to overlap the outer side of the middle gusset 5 and then fix the inner side of the edge of the middle gusset 5 to the supporting inner panel 1; in other embodiments of the present disclosure, the third connecting portion 43 may alternatively overlap the inner side of the middle reinforcing plate 5, and then fixedly connect the inner side of the edge of the third connecting portion 43 to the supporting inner panel 1.

Specifically, well cavity 6 that also is edge-closed between well reinforcing plate 5 and the support inner panel 1, the edge of well reinforcing plate 5 with support inner panel 1 fixed connection, the edge of this well reinforcing plate 5 is the edge except the one end that is connected with last reinforcing plate 4 to, the edge of well reinforcing plate 5 also with support the laminating of inner panel 1 edge phase-match, when guaranteeing fixed connection, well reinforcing plate 5 is seamless with the junction that supports inner panel 1, connects closely to seal.

It should be noted that the joint between the third connecting portion 43 and the middle reinforcing plate 5 is also divided into a middle portion and an edge, a hollow cavity 6 is formed between the upper reinforcing plate 4 and the middle reinforcing plate 5 in the middle of the third connecting portion 43, and the upper reinforcing plate 4 and the middle reinforcing plate 5 are fixedly overlapped and then fixedly connected to the edge of the supporting inner plate 1 at the edge of the third connecting portion 43, so that the edge of the hollow cavity 6 is stably sealed; and, well cavity 6 is corresponding with the shape of reinforcing plate subassembly, well cavity 6 is the tee bend structure that runs through whole reinforcing plate subassembly, the three-terminal of this well cavity 6 corresponds T template first end respectively, T template second end and well reinforcing plate 5 bottoms, as shown in the cross-sectional view in the description figure 6-9, the edge and the peripheral piece of going up reinforcing plate 4 are closely closed connection, and bulge towards the middle part gradually forms well cavity 6, in the reinforcing support inner panel 1 with first boundary beam 2 equal connection end intensity, the lightweight of vehicle has been taken into account, be favorable to promoting user's use impression.

Preferably, the upper reinforcing plate 4 and the middle reinforcing plate 5 are preferably welded, so that the connection strength of the upper reinforcing plate and the middle reinforcing plate is ensured to the maximum extent; similarly, the connection mode of the reinforcement panel assembly, the support inner panel 1 and the first side member 2 may be preferably welding, and the connection strength of the vehicle body frame reinforcement structure of the present embodiment is ensured.

Specifically, the vehicle body frame assembly further includes a second side member 3, as shown in fig. 1-3, one end of the second side member 3 is a connecting end 31, the second side member 3 is fixedly connected to the first side member 2 through the connecting end 31, fig. 6 is a cross-sectional view of a-a cross section, and the connecting end 31 and the inner support plate 1 are located on the same side of the first side member 2; at the moment, the second edge beam 3 is directly connected with the first edge beam 2, but the second edge beam 3 is not directly connected with the supporting inner plate 1, the second edge beam 3 is indirectly connected with the reinforcing plate assembly through the first edge beam 2, so that the structural stability and the structural rigidity of the vehicle body frame assembly are ensured; meanwhile, the connecting ends of the vehicle body frame reinforcing structure are tightly connected, a multidirectional stress transmission channel (a stress channel between the first edge beam 2 and the supporting inner plate 1, a stress channel between the first edge beam 2 and the second edge beam 3 and a stress channel between the first edge beam 2 and the upper reinforcing plate 4) is established at the connecting ends through the first edge beam 2, the stress transmission is ensured not to be interrupted, and the contact area of the connecting parts is larger than that of the traditional reinforcing plate, so that the condition that the vehicle body is cracked due to excessive concentration of local stress is prevented; for example, when the supporting inner panel 1 is stressed, the upper stress can be transmitted to the first edge beam 2 along the edge and transmitted to the upper reinforcing plate 4 and the second edge beam 3 through the first edge beam 2, and the lower stress can be transmitted to the middle reinforcing plate 5 directly along the edge, so that the stress transmission is smooth and uniformly dispersed, and the vehicle body frame reinforcing structure can effectively absorb energy; in addition, in one of the embodiments of the present specification, the second side beam 3 is a rear door opening roof side beam, and the rear door opening roof side beam is fixedly connected with the rear quarter window roof side beam, so that smooth force transmission is ensured.

Preferably, the first boundary beam 2 and the second boundary beam 3 are connected by two-protection welding (full-name carbon dioxide gas shielded welding), and the anti-cracking performance is good, the welding deformation is small, and the adaptive deformation range is large.

When in installation, the first edge beam 2 penetrates through the supporting inner plate 1, the upper part of the supporting inner plate 1 is jointed with the end position of the first edge beam 2 and then welded and fixed, then the third connecting part 43 of the upper reinforcing plate 4 is jointed and welded with the top of the middle reinforcing plate 5 to form a reinforcing plate assembly, the upper part of the reinforcing plate assembly is jointed with the outer side surface of the first side beam 2, the lower part of the reinforcing plate assembly is jointed with the outer side surface of the supporting inner plate 1, the position is found and then welded and fixed, so that a hollow cavity 6 with a sealed edge is formed between the reinforcing plate assembly and the vehicle body frame assembly, the rigidity of the vehicle body frame reinforcing structure is ensured, the light weight of the vehicle is considered, finally, the connecting end 31 of the second side beam 3 is fixedly connected with the end head of the first side beam 2, the multi-directional stress transfer channel is formed in the whole vehicle body frame reinforcing structure, and the vehicle body is prevented from cracking due to local stress concentration.

According to the present embodiment, the present invention has the following advantages:

1. the reinforcing plate component improves the rigidity of the vehicle body frame, the edge of the reinforcing plate component is tightly connected with the joints of the supporting inner plate and the first edge beam and is tightly sealed, so that the joints are stable in structure and not prone to shaking or deforming when vibrated, the overall strength of the connecting end is improved, and the mode of the whole vehicle is further improved.

2. The middle part of the reinforcing plate component and the vehicle body frame component form a stable hollow cavity with a closed edge, and light weight of a vehicle is facilitated.

3. The second boundary beam only has direct connection with the first boundary beam, and the reinforcing plate assembly has no direct connection relation with the second boundary beam, so that the condition that the traditional reinforcing plate is not tightly connected with the second boundary beam in an overlapping manner and has low rigidity is avoided, noise pollution caused by mutual collision of overlapping parts during bumping is also avoided, and the NVH performance of the connecting end of the vehicle body frame is improved.

4. The multidirectional stress transfer channel is formed by the first edge beam, so that energy can be effectively absorbed, local stress concentration is avoided, the automobile body is prevented from cracking, and the service life of the automobile body frame assembly is prolonged.

While only certain embodiments of the present invention have been described and illustrated herein, it will be understood by those skilled in the art that various changes and modifications may be made, and any such modifications, equivalents and improvements are within the scope of the invention as claimed.

Claims

1. The vehicle body frame reinforcing structure is characterized by comprising a reinforcing plate component and a vehicle body frame component which are fixedly connected, wherein a hollow cavity (6) with a closed edge is arranged between the reinforcing plate component and the vehicle body frame component; the vehicle body frame assembly comprises a supporting inner plate (1) and a first edge beam (2) which are fixedly connected, the supporting inner plate (1) is located on one side of the first edge beam (2), and the reinforcing plate assembly is located on the other side of the first edge beam (2); the upper portion of the reinforcing plate assembly is fixedly connected with the first edge beam (2), and the lower portion of the reinforcing plate assembly is fixedly connected with the supporting inner plate (1).

2. A vehicle body frame reinforcing arrangement according to claim 1, wherein said reinforcing plate assembly comprises an upper reinforcing plate (4) and a middle reinforcing plate (5), said upper reinforcing plate (4) being fixedly connected to said middle reinforcing plate (5).

3. The vehicle body frame reinforcing structure is characterized in that the middle of the upper reinforcing plate (4) is a hollow cavity (6), a first connecting portion (41), a second connecting portion (42) and a third connecting portion (43) are arranged at the edge of the upper reinforcing plate (4), the first connecting portion (41) is fixedly connected with the first edge beam (2), the second connecting portion (42) is fixedly connected with the supporting inner plate (1), and the third connecting portion (43) is fixedly connected with the top of the middle reinforcing plate (5).

4. A vehicle body frame reinforcing structure according to claim 3, wherein said first connecting portion (41) and said second connecting portion (42) are both of a bent structure, said first connecting portion (41) is fitted to said first side member (2), and said second connecting portion (42) is fitted to said support inner panel (1).

5. A vehicle body frame reinforcing structure according to claim 3, wherein said upper reinforcing plate (4) is a T-shaped plate.

6. The vehicle body frame reinforcing structure is characterized in that a hollow cavity (6) is formed between the middle reinforcing plate (5) and the supporting inner plate (1), and the edge of the middle reinforcing plate (5) is matched and fixedly connected with the supporting inner plate (1).

7. A vehicle body frame reinforcing arrangement according to claim 1, characterized in that the vehicle body frame assembly further comprises a second side member (3), one end of the second side member (3) being fixedly connected to the first side member (2).

8. A vehicle body frame reinforcing arrangement according to claim 7, characterized in that said second side member (3) comprises an attachment end (31), said attachment end (31) being fixedly attached to said first side member (2), said attachment end (31) being located on the same side of said first side member (2) as said supporting inner panel (1).

9. A vehicle body frame reinforcing arrangement according to claim 7, wherein there is a double bond between said first side member (2) and said second side member (3).

10. A vehicle body frame assembly comprising the vehicle body frame reinforcing structure defined in any one of claims 1 to 9.