CN213649732U

CN213649732U - Threshold roof beam and vehicle

Info

Publication number: CN213649732U
Application number: CN202022065995.3U
Authority: CN
Inventors: 赵鹏云; 王智文
Original assignee: Beijing Automotive Research Institute Co Ltd
Current assignee: Beijing Automotive Research Institute Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-07-09
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a threshold roof beam and vehicle that has it, the threshold roof beam includes: the outer plate is provided with an energy absorption cavity, and reinforcing ribs are arranged in the energy absorption cavity; the inner plate is arranged on the inner side of the outer plate and is attached and connected with the inner side of the outer plate; the outer plate is made of an aluminum alloy material, and the inner plate is made of a steel material. The utility model discloses threshold roof beam, planking adopt aluminum alloy material to make, realize the lightweight of structure, and the planking is equipped with energy-absorbing chamber and strengthening rib, has guaranteed that the vehicle collision in-process is crumpled effectively and is warp to absorption collision energy, inner panel adopt the steel material to make, have realized the structural requirement of high strength. From this, through the cooperation of inner panel and planking, under the prerequisite that has sufficient intensity and guarantee passenger's safety, realized the lightweight of structure.

Description

Threshold roof beam and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a threshold roof beam and vehicle that has this threshold roof beam are related to.

Background

With the continuous improvement of economic strength and technical level, automobile host factories also pay more and more attention to the overall strength of the automobile body, and people have higher and higher requirements on the collision safety performance of the automobile, so that higher requirements on the rigidity and the strength of the automobile body are provided. Meanwhile, the requirements of energy conservation and emission reduction sources are gradually improved at the present stage, the emission requirements of automobiles are more and more strict, the implementation of a double-integral policy puts higher requirements on oil consumption and emission of fuel automobiles, and the light weight of the automobiles is a rapid and effective powerful measure for solving the problems, so that various large host factories strive to develop new materials, new processes and new structures to reduce the weight of automobile bodies. In the prior art, the threshold beam is taken as a key collision part, but structural strength and lightweight design cannot be taken into consideration, the practicability is poor, and an improved space exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a threshold roof beam can compromise lightweight and structural strength's requirement.

According to the utility model discloses threshold roof beam, include: the outer plate is provided with an energy absorption cavity, and reinforcing ribs are arranged in the energy absorption cavity; the inner plate is arranged on the inner side of the outer plate and is attached and connected with the inner side of the outer plate; the outer plate is made of an aluminum alloy material, and the inner plate is made of a steel material.

According to the utility model discloses threshold roof beam, the planking adopts aluminum alloy material to make, realizes the lightweight of structure, and the planking is equipped with energy-absorbing chamber and strengthening rib, has guaranteed that the vehicle collision in-process is collapsed effectively and is out of shape to absorb the collision energy, the inner panel adopts the steel material to make, has realized the structural requirement of high strength. From this, the threshold roof beam of this application passes through the cooperation of inner panel and planking, has realized the lightweight of structure under the prerequisite that sufficient intensity guaranteed passenger safety.

According to the utility model discloses threshold roof beam, the planking includes first board and the second board that sets gradually along inside and outside direction, the upper and lower both ends of first board respectively with the upper and lower both ends of second board link to each other, the middle part of first board with the middle part of second board is spaced apart to be set up and is injectd energy-absorbing chamber, the inboard of first board with the inner panel laminating links to each other.

According to the doorsill beam provided by the embodiment of the utility model, the first plate comprises a first upper plate, a first middle plate and a first lower plate, the first upper plate and the first lower plate are parallelly spaced, the inner end of the first upper plate is connected with the upper end of the first middle plate, the inner end of the first lower plate is connected with the lower end of the first middle plate, and the first middle plate is connected with the inner plate in a laminating way; the second plate comprises a second upper plate, a second middle plate and a second lower plate, the second upper plate and the second lower plate are spaced in parallel, the outer end of the second upper plate is connected with the upper end of the second middle plate, and the outer end of the second lower plate is connected with the lower end of the second middle plate; the outer end of the first upper plate is connected with the inner end of the second upper plate, the outer end of the first lower plate is connected with the inner end of the second lower plate, and the first middle plate and the second middle plate are arranged at intervals along the inner and outer directions.

According to the utility model discloses threshold roof beam, the second intermediate lamella includes first subsection, second subsection and third subsection, the upper end of first subsection with the second upper plate links to each other, the lower extreme of first subsection with the inner of second subsection links to each other, the inner of second subsection with the inner of third subsection links to each other, the lower extreme of third subsection with the second hypoplastron links to each other.

According to the utility model discloses threshold roof beam, the strengthening rib includes first strengthening rib and second strengthening rib, just first strengthening rib with the second strengthening rib along upper and lower direction parallel spaced arrangement in the energy-absorbing chamber.

According to the utility model discloses threshold roof beam, the strengthening rib still includes the third strengthening rib, the third strengthening rib extends the setting along upper and lower direction, just the lower extreme of third strengthening rib extend to with the lower extreme of first board with the lower extreme junction of second board meets, the upper end of third strengthening rib extend to with the lower surface of second strengthening rib meets.

According to the utility model discloses threshold roof beam, the planking still includes: the upper connecting plate extends upwards from the joint of the upper end of the first plate and the upper end of the second plate, the lower connecting plate extends downwards from the joint of the lower end of the first plate and the lower end of the second plate, and the inner side face of the upper connecting plate and the inner side face of the lower connecting plate are both connected with the inner plate in a laminating manner.

According to the utility model discloses threshold roof beam, the upper junction plate with the lower connecting plate all with the inner panel welding links to each other.

According to the utility model discloses threshold roof beam, the thickness of outer plate is h1, the thickness of interior plate is h2, satisfies: h1 is more than or equal to 3mm and less than or equal to 6mm, and h2 is more than or equal to 0.8mm and less than or equal to 1.2 mm.

The utility model also provides a vehicle.

According to the utility model discloses vehicle is provided with the threshold roof beam of any kind of above-mentioned embodiment.

The advantages of the vehicle and of the rocker beam with respect to the prior art are the same and will not be described in detail here.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a threshold beam according to an embodiment of the invention;

fig. 2 is a schematic view of an installation environment of a threshold beam according to an embodiment of the invention;

fig. 3 is a cross-sectional view at a-a in fig. 2.

Reference numerals:

the threshold beam 100 is provided with a sill beam,

outer plate 1, first upper plate 111, first middle plate 112, first lower plate 113, second upper plate 121, second middle plate 122, first subsection 1221, second subsection 1222, third subsection 1223, second lower plate 123,

the sub-energy absorption chamber 13, the first bead 141, the second bead 142, the third bead 143,

an upper connecting plate 15, a lower connecting plate 16 and an inner plate 2.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e., the X direction; the left and right directions are the transverse direction of the vehicle, namely the Y direction; the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A threshold beam 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.

As shown in fig. 3, the threshold beam 100 of the embodiment of the present invention includes: an outer panel 1 and an inner panel 2.

The outer plate 1 is provided with an energy absorption cavity, and the energy absorption cavity can generate crumple deformation when an automobile collides, so that energy generated by collision is absorbed. Wherein, the energy-absorbing intracavity is equipped with the strengthening rib, and the setting of strengthening rib can guarantee that planking 1 has certain structural strength, avoids because slight collision leads to the vehicle to take place to warp, reduces cost of maintenance to and when taking place violent collision, the strengthening rib takes place to warp in the energy-absorbing intracavity, and the absorptive energy is more, thereby reduces the impact of impact force to the automobile body greatly.

The inner plate 2 is installed on the inner side of the outer plate 1, and the inner plate 2 is attached to the inner side of the outer plate 1, as shown in fig. 3, the cross-sectional shape of the inner plate 2 is a structure shaped like a Chinese character 'ji', and the contact surfaces of the inner plate 2 and the outer plate 1 are attached to each other, so that the situation that force conduction is blocked due to the existence of a gap between the contact surfaces of the inner plate 2 and the outer plate 1 during frontal collision, even separation, fracture and the like are generated between the contact surfaces of.

That is, after the outer panel 1 is collapsed, the reduced impact force is transmitted to the inner panel 2, and the inner panel 2 resists deformation, so that the threshold beam 100 is prevented from being deformed inward to a large extent, and the side enclosure is well protected, thereby indirectly protecting passengers from being damaged by the impact force.

Wherein, planking 1 adopts the aluminum alloy material to make, and planking 1 adopts extrusion. The outer plate 1 can be made of 6 series aluminum alloy materials such as 6016, 6082 and the like, or can be made of other grades of aluminum alloy meeting performance requirements, such as high-strength 7 series aluminum alloy. And the section shape of the outer plate 1 can be selected from regular sections such as 'day', 'field', 'mesh' and the like or irregular sections meeting the extrusion process according to performance requirements.

The inner panel 2 is made of steel material, and the inner panel 2 is generally formed by casting. That is, the inner panel 2 may be made of ultra-high strength steel having a tensile strength greater than 1000MPa, and the grade of steel may be selected according to the collision requirement and the effect of light weight.

It should be noted that, as shown in fig. 2, the rocker beam 100 is located at the lower end of the vehicle door, and the rocker beam 100 is connected to the a-pillar lower panel, the B-pillar, and the C-pillar by welding.

The utility model discloses threshold roof beam 100, 1 adoption aluminum alloy material of planking is made, realize the lightweight of structure, 1 planking is equipped with energy-absorbing chamber and strengthening rib, guaranteed vehicle collision in-process collapse deformation effectively, thereby absorb the collision energy, 2 inner panel adopt the steel material to make, the structural requirement of high strength has been realized, make the collision in-process, the range that 100 threshold roof beams warp reduces greatly, cooperation through inner panel 2 and 1 planking, under the prerequisite that has sufficient intensity assurance passenger safety, the lightweight of structure has been realized.

In some embodiments, as shown in fig. 3, the outer panel 1 includes a first panel and a second panel sequentially arranged in an inner-outer direction, an upper end and a lower end of the first panel are respectively connected to an upper end and a lower end of the second panel, a middle portion of the first panel and a middle portion of the second panel are spaced apart and define an energy-absorbing cavity, and an inner side of the first panel is attached to the inner panel 2. That is to say, when the vehicle takes place the striking, the second board can be towards the deformation that contracts of energy-absorbing intracavity ulcerate, and simultaneously, the second board transmits part impact to inner panel 2 through first board, both can realize the effective absorption of impact energy, does benefit to the transmission of impact again.

In the actual process, the outer panel 1 is integrally press-molded, and when the outer panel 1 obtained by press-molding receives the impact force of the impact, the transmission of the impact force is more rapid, the overall structural strength of the outer panel 1 is higher, and the energy that can be absorbed is also higher.

In some embodiments, as shown in fig. 3, the first plate includes a first upper plate 111, a first middle plate 112 and a first lower plate 113, the first upper plate 111 is spaced apart from the first lower plate 113 in parallel, and an inner end of the first upper plate 111 is connected to an upper end of the first middle plate 112, an inner end of the first lower plate 113 is connected to a lower end of the first middle plate 112, and the first middle plate 112 is attached to the inner plate 2.

The second plate includes a second upper plate 121, a second middle plate 122 and a second lower plate 123, the second upper plate 121 is spaced apart from the second lower plate 123 in parallel, and an outer end of the second upper plate 121 is connected to an upper end of the second middle plate 122, and an outer end of the second lower plate 123 is connected to a lower end of the second middle plate 122; wherein, the outer end of the first upper plate 111 is connected with the inner end of the second upper plate 121, the outer end of the first lower plate 113 is connected with the inner end of the second lower plate 123, and the first middle plate 112 and the second middle plate 122 are arranged at intervals along the inner and outer directions.

Therefore, through the matching of the parts of the first plate and the second plate, a closed structure connected in the inner and outer directions is formed, so that deformation and energy absorption in the inner and outer directions are facilitated.

The second middle plate 122 includes a first sub-section 1221, a second sub-section 1222 and a third sub-section 1223, the upper end of the first sub-section 1221 is connected to the second upper plate 121, the lower end of the first sub-section 1221 is connected to the outer end of the second sub-section 1222, the inner end of the second sub-section 1222 is connected to the upper end of the third sub-section 1223, and the lower end of the third sub-section 1223 is connected to the second lower plate 123. As shown in fig. 3, the second intermediate plate 122 is designed by connecting the first subsection 1221, the second subsection 1222 and the third subsection 1223 such that the second intermediate plate 122 forms an escape notch at the lower corner of the outer side of the outer plate 1, thereby preventing the threshold beam 100 from being excessively protruded downward at the outer side, thereby preventing the threshold beam 100 from being hit by the lower side of the vehicle.

In some embodiments, the reinforcing ribs include a first reinforcing rib 141 and a second reinforcing rib 142, and the first reinforcing rib 141 and the second reinforcing rib 142 are arranged in the energy absorbing cavity at a distance in parallel in the up-down direction. Thus, the first and

second ribs

141, 142 divide the energy absorption chamber into three sub-energy absorption chambers 13, namely, the sub-energy absorption chamber 13 located above the first rib 141, the sub-energy absorption chamber 13 located between the first and

second ribs

141, 142, and the sub-energy absorption chamber 13 located below the second rib 142.

From this, through set up first strengthening rib 141 and second strengthening rib 142 in planking 1 for the energy-absorbing cavity of planking 1 divides a plurality of energy-absorbing regions, has increased the structural strength of planking 1 promptly, has increased the energy-absorbing effect of planking 1 again, promotes the wholeness ability of planking 1. The sub-energy absorption cavities 13 above the first reinforcing ribs 141 and the sub-energy absorption cavities 13 between the first reinforcing ribs 141 and the second reinforcing ribs 142 have the same width in the vertical direction, so that when the vehicle is impacted, the two sub-energy absorption cavities 13 can be synchronously collapsed in a constant amplitude manner, and the impact energy can be absorbed to the maximum extent.

The reinforcing ribs further comprise third reinforcing ribs 143, the third reinforcing ribs 143 extend in the vertical direction, the lower ends of the third reinforcing ribs 143 extend to the joint between the lower ends of the first plate and the second plate, and the upper ends of the third reinforcing ribs 143 extend to the lower surfaces of the second reinforcing ribs 142. From this, improved planking 1 along the structural strength of upper and lower direction through setting up third strengthening rib 143, and through first board of third strengthening rib 143 cooperation, second board and second strengthening rib 142, the sub-energy-absorbing chamber 13 that will be located second strengthening rib 142 below carries out one step and separates and divides, has guaranteed planking 1 when receiving the impact of equidirectional, and the homoenergetic that all can absorb effectively fast.

In some embodiments, the outer panel 1 further includes: upper junction plate 15 and lower connecting plate 16, upper junction plate 15 upwards extends the setting from the upper end of first board and the upper end junction of second board, and lower connecting plate 16 downwards extends the setting from the lower extreme of first board and the lower extreme junction of second board, and the medial surface of upper junction plate 15 and the medial surface of lower connecting plate 16 all link to each other with the laminating of inner panel 2.

As shown in fig. 3, planking 1 and inner panel 2 are laminated on upper connecting portion and lower connecting portion respectively and are linked to each other, and inner panel 2 is spaced apart with the upper surface of the first upper plate 111 of planking 1, the lower surface of the first lower board 113 of inner panel 2 and planking 1 is spaced apart simultaneously, reserve space has been formed, it is receiving the impact force to have guaranteed planking 1, after the collapse deformation, planking 1 is after deforming through the energy-absorbing chamber energy-absorbing, still can be towards relative inside and outside deformation in the reserve space, at last with power conduction to inner panel 2, the energy-absorbing effect of doorsill beam 100 has greatly been promoted, do benefit to the structural strength who guarantees doorsill beam 100 simultaneously.

Wherein, upper junction plate 15 and lower connecting plate 16 all link to each other with inner panel 2 welding, make planking 1 and inner panel 2 can closely laminate through the welding, and both contact surfaces cause the power conduction because of having the clearance when avoiding frontal collision to be obstructed, prevent that both from producing separation, fracture etc. improve the stability of threshold roof beam 100 structure.

The thickness of the outer plate 1 is h1, the thickness of the inner plate 2 is h2, and the following conditions are satisfied: h1 is more than or equal to 3mm and less than or equal to 6mm, and h2 is more than or equal to 0.8mm and less than or equal to 1.2 mm. That is, the thickness h1 of the outer panel 1 may be set to 4mm, or h1 may be set to 4.5mm, or h1 may be set to 5 mm; the thickness h2 of the inner panel 2 may be 0.9mm, or h2 may be set to 1.0mm, or h2 may be set to 1.1 mm. Therefore, the thickness of the inner plate 2 and the thickness of the outer plate 1 are set in the range for decoration, so that the inner plate 2 and the outer plate 1 can meet the strength requirement, and the goal of realizing the light weight of the doorsill beam 100 is facilitated.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle is provided with threshold roof beam 100 of any kind of embodiment above. Through setting up foretell threshold roof beam 100, planking 1 adopts aluminum alloy material to make, realizes the lightweight of structure, promotes the energy-absorbing effect, and inner panel 2 adopts the steel material to make simultaneously, has realized the structural requirement of high strength. Therefore, the light weight of the structure is realized on the premise of ensuring the safety of passengers with enough strength by matching the inner plate 2 and the outer plate 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A threshold beam (100), comprising:

the outer plate (1), the said outer plate (1) has energy-absorbing cavities, there are stiffening ribs in the said energy-absorbing cavity;

the inner plate (2) is mounted on the inner side of the outer plate (1) and is attached to the inner side of the outer plate (1); the outer plate (1) is made of an aluminum alloy material, and the inner plate (2) is made of a steel material.

2. The doorsill beam (100) according to claim 1, characterized in that the outer panel (1) comprises a first panel and a second panel arranged in sequence along the inner and outer direction, the upper and lower ends of the first panel are connected with the upper and lower ends of the second panel respectively, the middle portion of the first panel is arranged at an interval from the middle portion of the second panel and defines the energy-absorbing cavity, and the inner side of the first panel is attached to the inner panel (2).

3. Threshold beam (100) according to claim 2,

the first plate comprises a first upper plate (111), a first middle plate (112) and a first lower plate (113), the first upper plate (111) and the first lower plate (113) are spaced in parallel, the inner end of the first upper plate (111) is connected with the upper end of the first middle plate (112), the inner end of the first lower plate (113) is connected with the lower end of the first middle plate (112), and the first middle plate (112) is attached to the inner plate (2);

the second plate comprises a second upper plate (121), a second middle plate (122) and a second lower plate (123), the second upper plate (121) and the second lower plate (123) are spaced in parallel, the outer end of the second upper plate (121) is connected with the upper end of the second middle plate (122), and the outer end of the second lower plate (123) is connected with the lower end of the second middle plate (122); wherein the content of the first and second substances,

the outer end of the first upper plate (111) is connected with the inner end of the second upper plate (121), the outer end of the first lower plate (113) is connected with the inner end of the second lower plate (123), and the first middle plate (112) and the second middle plate (122) are arranged at intervals along the inner and outer directions.

4. Threshold beam (100) according to claim 3, characterized in that said second intermediate plate (122) comprises a first subsection (1221), a second subsection (1222) and a third subsection (1223), the upper end of said first subsection (1221) being connected to said second upper plate (121), the lower end of said first subsection (1221) being connected to the outer end of said second subsection (1222), the inner end of said second subsection (1222) being connected to the upper end of said third subsection (1223), the lower end of said third subsection (1223) being connected to said second lower plate (123).

5. The rocker beam (100) according to claim 2, characterised in that the reinforcement comprises a first reinforcement (141) and a second reinforcement (142), and that the first reinforcement (141) and the second reinforcement (142) are arranged in the energy-absorbing chamber at a distance in parallel in the up-down direction.

6. The rocker beam (100) of claim 5, wherein the reinforcement further comprises a third reinforcement (143), the third reinforcement (143) extending in an up-down direction, a lower end of the third reinforcement (143) extending to meet a junction of the lower end of the first plate and the lower end of the second plate, and an upper end of the third reinforcement (143) extending to meet a lower surface of the second reinforcement (142).

7. The rocker beam (100) according to claim 2, characterised in that the outer panel (1) further comprises: the upper connecting plate (15) and the lower connecting plate (16), the upper connecting plate (15) is followed the upper end of first board with the upper end junction of second board upwards extends the setting, lower connecting plate (16) are followed the lower extreme of first board with the lower extreme junction downwardly extending of second board sets up, just the medial surface of upper connecting plate (15) with the medial surface of lower connecting plate (16) all with inner panel (2) laminating links to each other.

8. Sill beam (100) according to claim 7, characterized in that the upper connecting plate (15) and the lower connecting plate (16) are both welded to the inner panel (2).

9. The rocker beam (100) according to claim 1, characterised in that the thickness of the outer panel (1) is h1 and the thickness of the inner panel (2) is h2, satisfying: h1 is more than or equal to 3mm and less than or equal to 6mm, and h2 is more than or equal to 0.8mm and less than or equal to 1.2 mm.

10. A vehicle, characterized in that a rocker beam (100) according to any one of claims 1-9 is provided.