CN213262624U

CN213262624U - Reinforcing structure of vehicle threshold beam, vehicle threshold beam assembly and vehicle

Info

Publication number: CN213262624U
Application number: CN202020583581.7U
Authority: CN
Inventors: 贾存利; 刘明卓; 韩东
Original assignee: BAIC Motor Co Ltd
Current assignee: BAIC Motor Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-05-25
Anticipated expiration: 2030-04-17

Abstract

The utility model belongs to the technical field of vehicle spare part, a additional strengthening, vehicle threshold roof beam assembly and vehicle of vehicle threshold roof beam is disclosed, wherein, additional strengthening (1) of vehicle threshold roof beam includes first bearing structure (11), buffer structure (13) and second bearing structure (12), and the three connects in proper order, forms sandwich type structure. The utility model discloses when promoting threshold roof beam rigidity, still have the effect of absorption collision energy, reduced electric automobile and bumped the invasion volume of back threshold roof beam deformation part at the emergence side post, played the effect of protection power battery and reduction passenger's injury.

Description

Reinforcing structure of vehicle threshold beam, vehicle threshold beam assembly and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle spare part, concretely relates to additional strengthening, vehicle threshold roof beam assembly and vehicle of vehicle threshold roof beam.

Background

In traffic accident statistics, side collision accidents account for a considerable proportion, and some special side collisions can cause great damage to a vehicle body. For example, when an automobile encounters an emergency, the side face of the automobile body may collide with a tree or a telegraph pole or other columnar obstacles due to the fact that the automobile is not in time to avoid, the collision result is serious due to the fact that the area of the collided position is small, the side face of the automobile is greatly deformed, and serious life threat is brought to passengers.

The main reason for the serious collision consequences is that the strength and the buffer space of the vehicle threshold beam are insufficient, when the side face of the vehicle body is collided by the pillar, the threshold beam can generate serious structural deformation, and the intrusion amount of the deformation part is large. The US-NCAP has incorporated the side impact condition into the vehicle evaluation criteria, which is expected to be incorporated into the new C-NCAP evaluation system.

With the improvement of the requirements of people on environmental protection and energy conservation of automobiles, electric automobiles become the trend of global automobile development. For an electric automobile, under the working condition of side column collision, once a power battery is seriously impacted, the self-ignition risk of the whole automobile is great, and further the life safety of passengers is seriously threatened. Therefore, from the viewpoint of dealing with a new evaluation system of C-NCAP and from the viewpoint of reducing the risk of spontaneous combustion caused by collision of the power battery, it is very necessary to consider the influence of the side column collision condition on the electric vehicle. Therefore, it is necessary to reinforce the pillar impact prevention structure of the rocker beam of the vehicle in a targeted manner to reduce the amount of intrusion when a side pillar impact occurs in the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vehicle threshold roof beam's additional strengthening realizes reducing the automobile body and receives the post to bump the invasion amount that the back takes place the deformation part to improve the security performance of vehicle.

In order to achieve the above object, in a first aspect, the present invention provides a vehicle doorsill beam reinforcement structure, including first bearing structure, buffer structure and second bearing structure, the three is connected in order, forms sandwich type structure. The sandwich type structure has the supporting function and the buffering function, the strength of the vehicle threshold beam is improved, and the threshold beam can absorb part of collision energy, so that the collision invasion amount of the pillar is reduced.

Further, the sandwich structure runs through the length direction of the threshold beam and extends from the front end of the threshold beam to the rear end of the threshold beam. The through type layout can ensure that the power battery and the passenger compartment are protected in all directions when the electric automobile is impacted by the side column.

Furthermore, the first supporting structure is suitable for forming a first buffering space between the first supporting structure and the inner plate of the rocker beam, and the second supporting structure is suitable for forming a second buffering space between the second supporting structure and the outer plate of the rocker beam. The two closed cavity type buffer spaces are formed, so that the strength and rigidity of a vehicle doorsill area are improved, the effect of absorbing collision energy is enhanced, and the collision invasion amount of the side pillars is reduced.

Further, the first support structure and the second support structure are each shaped like a Chinese character ji. The design of the shape of the Chinese character ji strengthens the supporting force of the supporting structure.

Further, the buffer structure is adapted to form a third buffer space with the first support structure and/or adapted to form a fourth buffer space with the second support structure. The formed buffer space improves the effect of the vehicle rocker reinforcement structure in absorbing collision energy.

Further, the buffer structure is a frame structure. A large number of gaps are formed in the frame structure, so that energy-absorbing materials can be conveniently filled in the frame structure, and a better energy-absorbing buffering effect is achieved.

Further, the buffer structure comprises a buffer unit shaped like a Chinese character 'ri', and/or a triangular buffer unit, and/or an inverted Chinese character 'ri', and/or a first wedge-shaped gap, and/or a second wedge-shaped gap. "day" style of calligraphy, triangle-shaped, fall "day" style of calligraphy buffer unit make buffer structure when effective absorption collision energy, can ensure that the impact force transmits along predetermined route, and this makes buffer structure can take place to warp more easily in the wedge space, plays better effect of absorbing the collision energy, reduces the invasion volume.

Further, the first support structure and the second support structure are formed by steel plates, and the buffer structure is formed by aluminum alloy. The vehicle doorsill beam reinforcing structure is made of two materials, so that the vehicle doorsill beam reinforcing structure can have the physical properties of the two materials at the same time, the steel is hard, and the steel supporting structure can play a better supporting effect; the texture of the aluminum alloy is softer, and the buffer structure of the aluminum alloy is easy to deform when being impacted, so that the effect of absorbing energy can be achieved.

In a second aspect, the present invention provides a vehicle rocker beam assembly, comprising a rocker beam inner plate, a rocker beam outer plate and a vehicle rocker beam reinforcement structure according to any one of the first aspect technical solutions; the first support structure of the reinforcing structure of the vehicle threshold beam is connected with the threshold beam inner plate through a first flanging, and the second support structure is connected with the threshold beam outer plate through a second flanging. The first flanging and the second flanging provide larger connecting surfaces, so that the connection is firmer.

In a third aspect, the present invention provides a vehicle, comprising the vehicle sill beam assembly of the second aspect. The vehicle sill beam assembly with the reinforcing structure enables the strength of the whole vehicle to be higher, the capability of absorbing collision energy to be stronger, and the intrusion amount of a deformation part during side collision of the vehicle body can be effectively reduced.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a reinforcement structure for a vehicle rocker beam of the present invention;

FIG. 2 is a perspective view of one embodiment of the vehicle rocker beam assembly of the present invention;

figure 3 is a cross-sectional schematic view of one embodiment of the vehicle rocker beam assembly of the present invention.

Description of the reference numerals

1-Reinforcement Structure 11 of vehicle sill Beam-first support Structure

111-first turned-up edge 114-first upper supporting surface

115-first lower support surface 113-first reinforcing rib

12-second support structure 121-second turned-up edge

124-second upper bearing surface 125-second lower bearing surface

123-second reinforcing rib 13-buffer structure

131- 'Ri' -shaped buffer unit 132-triangular buffer unit

133-inverted-reversed-Y-shaped buffer unit 134-first wedge-shaped gap

135-second wedge gap 21-sill beam inner panel

22-sill outer panel 31-first buffer space

32-second buffer space 33-third buffer space

34-fourth buffer space

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the following description of the technical solutions of the present invention, the dotted lines in fig. 1, fig. 2 and fig. 3 play a role of indicating the range, which is only for convenience of indicating the technical features of the present invention, but not the structure of the present invention itself, and therefore, the present invention is not to be construed as being limited thereto.

As shown in fig. 1, the reinforcing structure of the vehicle rocker beam according to the present invention includes a first supporting structure 11, a buffer structure 13 and a second supporting structure 12, which are sequentially connected to form a sandwich structure. Like this, after this sandwich type structure is installed between the interior outer panel of vehicle threshold roof beam, in the space between the planking of following vehicle threshold roof beam to the inner panel, increased three buffer segment in other words, one is second bearing structure 12, and its is buffer structure 13, and its third is first bearing structure 11. When the pillar bumps, the second supporting structure 12 deforms, absorbs partial energy, the extrusion buffering structure 13 conducts other energy to the second supporting structure, the buffering structure 13 deforms under extrusion, a large amount of energy is absorbed, the first supporting structure 11 conducts the residual energy to the first supporting structure, the first supporting structure 11 supports the extrusion of the buffering structure 13, deformation absorption energy also occurs after extrusion, collision energy is absorbed layer by layer through the three buffering sections, and the intrusion amount during side bump is reduced.

Specifically, as a preferred embodiment, the sandwich structure link up in the length direction of threshold roof beam, extends to the rear end from the front end of threshold roof beam, has all strengthened the threshold roof beam of automobile body side for when the automobile body side takes place the collision, the position of collision all has sandwich structure to cushion the impact force, provides omnidirectional protection for personnel in the car and battery.

Specifically, as a preferred embodiment, the first supporting structure 11 is connected to the rocker inner panel 21 shown in fig. 2 to form a first cushion space 31 (indicated by a broken line frame in the drawing) shown in fig. 3; the second support structure 12 is connected to the rocker outer panel 22 shown in fig. 2 to form a second cushion space 32 (indicated by a dashed line in the drawing) shown in fig. 3, and the two cushion spaces can be used as reinforcing ribs of the inner and outer rocker panels, thereby achieving a supporting function, improving the strength and rigidity of the rocker, and absorbing collision energy, and reducing the intrusion of the vehicle during side pillar collision.

In particular, as a preferred embodiment, the first support structure 11 and the second support structure 12 are each shaped like a Chinese character 'ji'. The openings shaped like a Chinese character 'ji' respectively face the inner plate 21 and the outer plate 22 of the rocker beam of the vehicle shown in fig. 2, the first flanging 111 can be used for being connected with the inner plate 21 of the rocker beam, the second flanging 121 can be used for being connected with the outer plate 22 of the rocker beam, the connection mode can be welding or riveting, the first flanging 111 and the second flanging 121 provide large connection faces, and connection can be firmer. Preferably, the first support structure 11 and the second support structure 12 are respectively provided with the first reinforcing rib 113 and the second reinforcing rib 123 as shown in fig. 1, and the design of the reinforcing ribs improves the support performance of the support structure.

In particular, as a preferred embodiment, the first supporting structure 11 and the cushioning structure 13 are connected by a first upper supporting surface 114 and a first lower supporting surface 115, forming a third cushioning space 33 (indicated by a dashed box in the figure) as shown in fig. 3; the second support structure 12 and the cushioning structure 13 are connected by a second upper support surface 124 and a second lower support surface 125 to form a fourth cushioning space 34 (indicated by the dashed box) as shown in fig. 3. The connection of each part can be realized through welding seam, rivet or viscose respectively, has guaranteed the stability of connection for this connection can ensure that the collision force can transmit to buffer structure 13 on stably, and absorption to collision energy has been strengthened to third buffer space 33 and fourth buffer space 34, has reduced the invasion volume when the side post bumps.

Specifically, as another aspect of the above preferred embodiment, the first supporting structure 11 and the buffer structure 13 are connected by the first upper supporting surface 114 and the first lower supporting surface 115 to form a third buffer space 33 (indicated by a dashed box in the figure) as shown in fig. 3; the second support structure 12 and the buffer structure 13 are connected by the second upper support surface 124 and the second lower support surface 125, and no buffer space is formed after the connection. The connection of each part can be realized through welding seam, rivet or viscose respectively, has guaranteed the stability of connection for this connection can ensure that the collision force transmits to buffer structure 13 steadily, and the absorption of collision energy has been strengthened to third buffer space 33, has reduced the invasion volume when the side post bumps.

Specifically, as another aspect of the above preferred embodiment, the first supporting structure 11 and the buffer structure 13 are connected by the first upper supporting surface 114 and the first lower supporting surface 115, and no buffer space is formed after the connection; the second support structure 12 and the cushioning structure 13 are connected by a second upper support surface 124 and a second lower support surface 125 to form a fourth cushioning space 34 (indicated by the dashed box) as shown in fig. 3. The connection of each position can be realized through welding seam, rivet or viscose respectively, has guaranteed the stability of connection for this connection can ensure that the collision force transmits to buffer structure 13 steadily, and fourth buffering space 34 has strengthened the absorption to collision energy, has reduced the invasion volume when the side post bumps.

In particular, as a preferred embodiment, the cushioning structure 13 is a frame structure. Frame construction itself can improve buffer structure's intensity, has played certain supporting role, has improved sandwich type structure's intensity and rigidity, and has a large amount of spaces in the frame construction, conveniently absorbs the energy through the buffering when producing deformation, more optimally, can fill the energy-absorbing material in the space, strengthens buffer structure's energy-absorbing effect, reaches the purpose that reduces the invasion volume.

Specifically, as a preferred embodiment, the buffer structure 13 includes a "r" -shaped buffer unit 131, a triangular buffer unit 132, an inverted "r" -shaped buffer unit 133, a first wedge gap 134, and a second wedge gap 135. Note that "upside down" in the inverted "japanese-character" buffer means that the "japanese-character" is rotated by 90 degrees so as to be tilted down to become horizontal. The buffer unit can ensure that the collision force is transmitted along a preset path, so that the buffer structure can generate preset beneficial deformation, and the collision force is absorbed through buffering; the wedge-shaped gap enables the buffer structure to be deformed more easily, the effect of absorbing collision energy better is achieved, and the invasion amount is reduced.

Specifically, as another aspect of the above preferred embodiment, the buffer structure 13 may be any one or a combination of several of the "japanese" -shaped buffer unit 131, the triangular buffer unit 132, the inverted "japanese" -shaped buffer unit 133, the first wedge gap 134, and the second wedge gap 135.

Specifically, as a preferred embodiment, the first support structure 11 and the second support structure 12 are formed of a steel plate, and the buffer structure 13 is formed of an aluminum alloy. Sandwich type structure contains two kinds of metal materials that have different structural strength and toughness, can be so that the additional strengthening of vehicle threshold roof beam possess the physical properties of these two kinds of materials simultaneously, and the texture of steel is hard, and the fashioned bearing structure of steel sheet can play better supporting effect, and the fashioned buffer structure of aluminum alloy because the aluminum alloy texture is softer, takes place deformation relatively easily when receiving the striking, can play the effect of absorbed energy. Preferably, the yield strength of the steel structure bracket is more than 420MPa, the thickness of the steel structure bracket is more than 1.2mm, so as to ensure the strength and rigidity of the supporting structure and the supporting capability, and the thickness of the aluminum alloy frame is more than 2mm, so that the buffer structure can absorb more energy when being impacted.

On the basis of above-mentioned additional strengthening embodiment, the utility model discloses in the embodiment of the vehicle doorsill beam assembly of second aspect, including the aforesaid additional strengthening of vehicle doorsill beam, doorsill beam inner panel 21 and doorsill beam outer panel 22, consequently have all beneficial effects that the technical scheme of above-mentioned additional strengthening embodiment brought at least. In a similar way, the vehicle of the third aspect of the present invention comprises the vehicle sill beam assembly of the second aspect, and also has at least all the advantageous effects brought by the technical solution of the above-mentioned reinforcing structure embodiment.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The utility model provides a reinforcing structure of vehicle doorsill beam, characterized in that, including first bearing structure (11), buffer structure (13) and second bearing structure (12), the three connects in proper order, forms sandwich type structure, first bearing structure (11) are suitable for and form first buffer space (31) between sill beam inner panel (21), second bearing structure (12) are suitable for and form second buffer space (32) between sill beam outer panel (22).

2. The vehicle rocker reinforcement of claim 1, wherein the sandwich-type structure extends through the length of the rocker from the front end of the rocker to the rear end of the rocker.

3. The reinforcing structure of a vehicle rocker beam according to claim 1 or 2, characterised in that the first support structure (11) and the second support structure (12) are each in the shape of a "herringbone".

4. A reinforcement structure for a vehicle rocker beam according to claim 1, characterised in that the buffer structure (13) is adapted to forming a third buffer space (33) with the first support structure (11) and/or a fourth buffer space (34) with the second support structure (12).

5. The reinforcing structure of a vehicle rocker beam according to claim 1, characterised in that the cushioning structure (13) is a frame structure.

6. The reinforcing structure of a vehicle rocker beam according to claim 5, characterised in that the buffer structure (13) comprises a "gaff-shaped buffer element (131), and/or a triangular buffer element (132), and/or an inverted" gaff-shaped buffer element (133), and/or a first wedge-shaped gap (134), and/or a second wedge-shaped gap (135).

7. The reinforcing structure of a vehicle rocker beam according to claim 1, characterised in that the first and second support structures (11, 12) are formed from sheet steel and the cushioning structure (13) is formed from an aluminium alloy.

8. A vehicle rocker beam assembly, comprising a rocker beam inner panel (21), a rocker beam outer panel (22) and a vehicle rocker beam reinforcement (1) according to any one of claims 1-7, wherein the first support structure (11) of the vehicle rocker beam reinforcement (1) is connected to the rocker beam inner panel (21) by a first flange (111) and the second support structure (12) is connected to the rocker beam outer panel (22) by a second flange (121).

9. A vehicle comprising the vehicle rocker beam assembly of claim 8.