CN115583289A - B-pillar assembly structure capable of improving collision performance and automobile - Google Patents
B-pillar assembly structure capable of improving collision performance and automobile Download PDFInfo
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- CN115583289A CN115583289A CN202211162631.4A CN202211162631A CN115583289A CN 115583289 A CN115583289 A CN 115583289A CN 202211162631 A CN202211162631 A CN 202211162631A CN 115583289 A CN115583289 A CN 115583289A
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- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
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Abstract
The invention belongs to the technical field of automobile safe driving, and particularly relates to a B-pillar assembly structure capable of improving collision performance, which comprises a B-pillar inner plate and a B-pillar anti-collision beam assembly, wherein the B-pillar anti-collision beam assembly comprises a split type reinforcing plate and a bent pipe beam, the split type reinforcing plate is fixedly arranged on the pipe beam, the split type reinforcing plate is fixedly connected with the B-pillar inner plate, the yield strength of the split type reinforcing plate and the B-pillar inner plate is smaller than that of the pipe beam, the elongation of the pipe beam is smaller than that of the split type reinforcing plate and the B-pillar inner plate, the yield strength of the upper part of the split type reinforcing plate is larger than that of the lower part of the split type reinforcing plate, and the elongation of the upper part of the split type reinforcing plate is smaller than that of the lower part of the split type reinforcing plate. The purpose is as follows: the method is used for meeting the requirements of the latest version of Chinese new vehicle evaluation code (C-NCAP) on the side collision performance and balancing multiple indexes such as performance, weight, cost and the like.
Description
Technical Field
The invention belongs to the technical field of safe driving of automobiles, and particularly relates to a B-pillar assembly structure capable of improving collision performance and an automobile.
Background
A chinese utility model patent (publication number: CN 201989859U) discloses a B pillar structure of an automobile. The B stand column assembly structure is composed of an outer plate and an inner plate, a plurality of reinforcing pieces are vertically arranged between the outer plate and the inner plate, the reinforcing pieces weaken the mechanical strength of the positions below the H point of the automobile corresponding to the hip position of a human body, strengthen the mechanical strength of the positions above the H point corresponding to the chest and the belly of the human body, and ensure the safety of the main parts of the human body, the chest and the belly. The B-pillar assembly structure in the prior art can play a role in supporting and absorbing energy for a passenger compartment when a side collision occurs to an automobile, plays an important role in reducing the intrusion speed of an automobile body into the automobile when the automobile body deforms, reducing the intrusion amount of the automobile structure into the automobile, ensuring the safety of drivers and passengers in the passenger compartment and the like, and is a good solution for the side collision of the automobile in the current version of the Chinese new automobile evaluation code (C-NCAP).
The problems that exist are that: with the increasing demands of consumers on the safety of automobiles and the tightening of crash regulations, the background art has been unable to meet the increasingly stringent performance requirements for side crash tests. The test conditions for the side collision of the automobile in the latest version of Chinese New vehicle evaluation protocol (C-NCAP) are adjusted, compared with the existing evaluation protocol, the weight of the barrier for the side collision is increased from 1400kg to 1700kg, the impact speed of the barrier is increased from 50km/h to 60km/h, and the impact energy of the side collision is increased by about 75 percent. Meanwhile, the ground clearance of the barrier in the side collision is increased by 50mm, and the width of the barrier is increased by 115mm, so that when a vehicle is tested in the side collision, compared with the prior test mode, the doorsill structure of the vehicle cannot be in contact with the barrier, the collision area of the barrier is completely concentrated in the B stand column structure and the door area of the vehicle, and the capability of bearing collision energy of the B stand column assembly structure must be improved in terms of the design aspect of the vehicle body structure.
The structural strength of the B upright post assembly is improved in a mode of increasing the size of a cavity of the B upright post assembly and is difficult to realize due to the limitation of the sizes of the front door frame opening and the rear door frame opening and the requirements of the in-and-out space of the door frame; for the prior art, the strength of the B-column assembly structure is required to be greatly improved, the number of reinforcing parts is increased, the material grade of parts is improved, and the material thickness of the parts is improved in a limited B-column cavity structure, so that the overall weight and the part cost of the B-column assembly are increased undoubtedly, and the trend of the whole vehicle light weight is against that. Therefore, how to find a novel B-pillar assembly structure meets the requirements of the latest version of the chinese new car evaluation code (C-NCAP) on the side collision performance, and at the same time, balances multiple indexes such as performance, weight, cost, and the like, is an important issue that needs to be solved in the front of the car body design engineer.
Disclosure of Invention
The purpose of the invention is: the B-pillar assembly structure and the automobile capable of improving the collision performance are provided, and are used for meeting the requirements of the latest version of Chinese new automobile evaluation code (C-NCAP) on the side collision performance and balancing multiple indexes such as performance, weight and cost.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a can promote collision performance's B post assembly structure, includes B stand inner panel and B stand anticollision roof beam assembly, B stand anticollision roof beam assembly includes split type reinforcing plate and crooked tubular beams, split type reinforcing plate fixed mounting is on the tubular beams, split type reinforcing plate and B stand inner panel fixed connection, the yield strength of split type reinforcing plate and B stand inner panel is less than the yield strength of tubular beams, the elongation of tubular beams is less than the elongation of split type reinforcing plate and B stand inner panel, the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, the elongation on split type reinforcing plate upper portion is less than the elongation of split type reinforcing plate lower part.
Further limiting, the B upright post inner plate is of a single-layer sheet metal structure. By adopting the structural design, the weight of the B column assembly structure can be further reduced, and the practicability is stronger.
Further, the cross section of the upper part of the B pillar inner plate is W-shaped. Due to the structural design, the W-shaped section has higher section bending modulus, and the self rigidity of parts can be improved; meanwhile, the structure can also effectively meet the requirement of arrangement space of the parts inside and outside the vehicle, and the practicability is strong.
Further inject, B stand inner panel and split type reinforcing plate all adopt high strength panel stamping forming. Compared with a thermal forming process, the structural design has the advantages that the B stand column inner plate and the split type reinforcing plate are formed by cold punching, the production and manufacturing cost of parts can be reduced, and the practicability is high.
Further prescribe a limit, set up the recess with tubular beams assorted on the split type reinforcing plate, the tubular beams is located the recess. Due to the structural design, the pipe beam and the split type reinforcing plate are positioned by matching the pipe beam and the groove, so that the installation is more convenient; meanwhile, the contact area between the tubular beam and the split type reinforcing plate can be increased, the connection is more stable, and the practicability is stronger.
Further define, split type reinforcing plate includes reinforcement on the B stand from the top down in proper order, reinforcement and B stand under reinforcement in the B stand, the yield strength of reinforcement is greater than the yield strength of reinforcement under the B stand on the B stand, the elongation of reinforcement is less than the elongation of reinforcement under the B stand on the B stand. In the structural design, three reinforcing members, namely an upper reinforcing member of the B upright post, a middle reinforcing member of the B upright post and a lower reinforcing member of the B upright post, are combined into a split reinforcing plate, and the upper part of the tubular beam is fixedly connected with an inner plate of the B upright post by the upper reinforcing member of the B upright post; the middle part of the tubular beam is fixedly connected with the inner plate of the column B through the reinforcing piece in the column B, and an installation structure is provided for the hinge on the rear door; the lower part of the tubular beam is fixedly connected with the inner plate of the column B by the lower reinforcement of the column B, and an installation structure is provided for the lower hinge of the rear door; thereby satisfying the arrangement and installation requirements of peripheral parts and having stronger practicability.
Further, the cross sections of the upper reinforcing piece of the B upright, the middle reinforcing piece of the B upright and the lower reinforcing piece of the B upright are in a structure like a Chinese character 'ji'. Due to the structural design, the mounting space inside the B stand column assembly structure can be enlarged, enough mounting space is provided for the tubular beams, and the practicability is high.
Further, the upper reinforcing piece of the B upright post is of a T-shaped structure, and the lower reinforcing piece of the B upright post is of an inverted T-shaped structure. Such structural design, through "T" type both sides and the side wall roof beam of reinforcement on the B stand be connected through spot welding, reinforcement "T" type both sides and threshold roof beam are connected under the B stand.
Further defined, the tubular beam is circular in cross section. Compared with the single-layer metal plate cross section design in the shape like a Chinese character 'ji', the structural design has higher cross section bending resistance modulus and stronger practicability.
Further, the number of the tubular beams is two, and the two tubular beams are arranged side by side along the vehicle length direction. By means of the structural design, the optimal combination of the outer diameter and the wall thickness of the tubular beam can be achieved on the basis that the cross section of the tubular beam is limited to be circular, so that the B column assembly structure has higher side collision performance and higher practicability under the same weight.
Further limiting, the tube beam is made of a high-strength thin-wall round tube by means of D roll bending or hot air expansion. Such structural design, structural strength is high, and the practicality is stronger.
The invention also discloses an automobile which comprises the B-pillar assembly structure capable of improving the collision performance.
The invention adopting the technical scheme has the following advantages:
1. the bent tubular beam replaces a sheet metal reinforcing part in the prior art, and the difference between the tubular beam and the combined reinforcing plate as well as the difference between the tubular beam and the inner plate of the B upright post in the aspect of energy absorption is utilized, so that the structure of the B upright post assembly realizes soft and hard partition on the performance, the supporting and energy absorbing effects of the B upright post assembly in the side collision process are better exerted, the invasion speed of an automobile body into the automobile is reduced when the automobile body deforms, and the invasion amount of the automobile structure into the automobile is reduced;
2. the yield strength of the upper part of the split type reinforcing plate is greater than that of the lower part of the split type reinforcing plate, and the elongation of the upper part of the split type reinforcing plate is less than that of the lower part of the split type reinforcing plate, so that the soft and hard partition of the B upright post assembly in the vertical direction is realized, namely, the lower end of the structural section selects a material with a slightly higher elongation according to the simulation result, so that the B upright post assembly preferentially deforms and absorbs energy corresponding to the area below the H point of the whole vehicle in the side collision process, and the impact energy to the part above the H point is reduced; the upper end of the structural section is made of a material with slightly high yield strength according to the simulation result, so that the deformation resistance of the B upright post assembly corresponding to the area above the H point of the whole vehicle is enhanced in the side collision process, the deformation invasion amount of the area above the H point of the B upright post assembly is reduced, and the injury of side collision to passengers in the vehicle is reduced as much as possible;
3. the combined reinforcing plate mode is adopted to replace an integral reinforcing plate in the prior art, so that the size of a reinforcing part is further reduced and the weight of a vehicle body is reduced while the arrangement and installation requirements of peripheral parts are met;
4. the weight of the B column assembly structure can be further reduced by arranging the B column inner plate into a single-layer sheet metal structure, and the practicability is strong;
5. the cross section of the upper part of the B upright post inner plate is arranged to be W-shaped, and the W-shaped section has higher section bending modulus, so that the self rigidity of parts can be improved; meanwhile, the structure can also effectively meet the requirement of arrangement space of parts inside and outside the vehicle, and has stronger practicability;
6. the B stand column inner plate and the split type reinforcing plate are both formed by punching high-strength plates, and compared with a thermal forming process, the B stand column inner plate and the split type reinforcing plate are both formed by cold punching, so that the production and manufacturing cost of parts can be reduced, and the practicability is high;
7. the pipe beam and the groove are matched with each other, so that the positioning between the pipe beam and the split type reinforcing plate is completed, and the installation is more convenient; meanwhile, the contact area between the tubular beam and the split type reinforcing plate can be increased, the connection is more stable, and the practicability is stronger;
8. the upper part of the tubular beam is fixedly connected with the inner plate of the column B through the upper reinforcement of the column B, the middle reinforcement of the column B and the lower reinforcement of the column B; the middle part of the tubular beam is fixedly connected with the inner plate of the column B through the reinforcing piece in the column B, and an installation structure is provided for the hinge on the rear door; the lower part of the tubular beam is fixedly connected with the inner plate of the column B by the lower reinforcement of the column B, and an installation structure is provided for the lower hinge of the rear door; thereby meeting the arrangement and installation requirements of peripheral parts and having stronger practicability;
9. through setting up the tubular beams into two of arranging side by side along the car length direction, can inject on circular shape basis at the cross section of tubular beams, realize the optimal combination of tubular beams external diameter and wall thickness for B post assembly structure possesses higher side collision performance under the same weight, and the practicality is stronger.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. Further, in the drawings, like parts are designated with like reference numerals, and the drawings are not drawn to actual scale;
FIG. 1 is a schematic structural view of a B-pillar assembly structure and an automobile according to an embodiment of the present invention, which can improve collision performance;
FIG. 2 is a schematic structural view of a B-pillar assembly structure capable of improving crash performance and a crash beam assembly portion in an embodiment of an automobile according to the present invention;
FIG. 3 isbase:Sub>A schematic cross-sectional view ofbase:Sub>A B-pillar assembly structure capable of improving crash performance andbase:Sub>A tubular beam andbase:Sub>A cross-sectional view at A-A of an embodiment of an automobile according to the present invention;
the main component symbols are as follows:
an inner plate 1 of the B upright post, an anti-collision beam assembly 2 of the B upright post,
B-pillar upper reinforcement 21, B-pillar middle reinforcement 22, B-pillar lower reinforcement 23 and tubular beams 24.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and those skilled in the art will appreciate the advantages and utilities of the present invention from the disclosure herein. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, are schematic drawings rather than actual drawings, and are not to be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
The first embodiment is as follows:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention comprises a B-pillar inner panel 1 and a B-pillar impact beam assembly 2, wherein the B-pillar impact beam assembly 2 comprises a split reinforcing panel and a bent pipe beam 24, the split reinforcing panel is fixedly mounted on the pipe beam 24, the split reinforcing panel is fixedly connected with the B-pillar inner panel 1, the yield strength of the split reinforcing panel and the B-pillar inner panel 1 is smaller than that of the pipe beam 24, the elongation of the pipe beam 24 is smaller than that of the split reinforcing panel and the B-pillar inner panel 1, the yield strength of the upper part of the split reinforcing panel is larger than that of the lower part of the split reinforcing panel, and the elongation of the upper part of the split reinforcing panel is smaller than that of the lower part of the split reinforcing panel.
In the embodiment, during manufacturing, the split type reinforcing plate is fixedly arranged on the tubular beam 24, and the tubular beam 24 is fixedly arranged on the B upright inner plate 1 through the split type reinforcing plate;
when the B column assembly structure is used, when the B column assembly structure is impacted from the side, the difference between the tube beam and the combined reinforcing plate as well as between the tube beam and the B column inner plate in the aspect of energy absorption is utilized, so that the B column assembly structure is partitioned in performance in a soft-hard mode, namely the tube beam 24 is utilized to support the B column assembly structure, the impact energy is absorbed through the deformation of the combined reinforcing plate and the B column inner plate, the supporting and energy absorbing effects of the B column assembly in the side impact process are better exerted, the intrusion speed of the automobile structure into the automobile is reduced when the automobile body deforms, the intrusion amount of the automobile structure into the automobile is reduced, the requirement of the latest version of Chinese new automobile evaluation code (C-NCAP) on the side impact performance is met, and the balance of multiple indexes such as performance, weight, cost and the like is realized.
Example two:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention comprises a B-pillar inner panel 1 and a B-pillar impact beam assembly 2, wherein the B-pillar inner panel 1 is of a single-layer sheet metal structure;
b stand anticollision roof beam assembly 2 includes split type reinforcing plate and crooked tubular beam 24, split type reinforcing plate fixed mounting is on tubular beam 24, split type reinforcing plate and 1 fixed connection in B stand inner panel, split type reinforcing plate and B stand inner panel 1's yield strength are less than tubular beam 24's yield strength, tubular beam 24's percentage of elongation is less than split type reinforcing plate and B stand inner panel 1's percentage of elongation, the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, the percentage of elongation on split type reinforcing plate upper portion is less than the percentage of elongation of split type reinforcing plate lower part.
In this embodiment, compare with embodiment one, utilize the difference in the aspect of energy absorption between tubular beam and combination formula reinforcing plate, the B stand inner panel for on the performance of B stand assembly structure realizes "soft or hard" subregion basis, through setting up B stand inner panel 1 to individual layer sheet metal construction, can further reduce the weight of B post assembly structure, the practicality is stronger.
Example three:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention includes a B-pillar inner panel 1 and a B-pillar impact beam assembly 2;
the B upright post inner plate 1 is of a single-layer metal plate structure, the cross section of the upper part of the B upright post inner plate 1 is W-shaped, and the B upright post inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates;
b stand anticollision roof beam assembly 2 includes split type reinforcing plate and crooked tubular beam 24, split type reinforcing plate fixed mounting is on tubular beam 24, split type reinforcing plate and 1 fixed connection in B stand inner panel, split type reinforcing plate and B stand inner panel 1's yield strength are less than tubular beam 24's yield strength, tubular beam 24's percentage of elongation is less than split type reinforcing plate and B stand inner panel 1's percentage of elongation, the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, the percentage of elongation on split type reinforcing plate upper portion is less than the percentage of elongation of split type reinforcing plate lower part.
In the embodiment, compared with the first embodiment, on the basis of realizing soft and hard partition of the B pillar assembly structure in performance by utilizing the difference in energy absorption between the tubular beam 24 and the combined reinforcing plate and between the B pillar inner plate 1 and the B pillar assembly structure, the B pillar inner plate 1 is further optimized, the cross section of the upper part of the B pillar inner plate 1 is in a W shape by a single-layer high-strength plate metal plate structure in a stamping forming manner, and the weight of the B pillar assembly structure is further reduced by utilizing the single-layer metal plate structure of the B pillar inner plate 1; the cross section of the upper part of the B upright post inner plate 1 is W-shaped, the W-shaped section has higher section bending modulus, the self rigidity of parts can be improved, and meanwhile, the structure can effectively meet the requirement of arrangement space of the parts inside and outside the vehicle; and B stand inner panel 1 and split type reinforcing plate all adopt high strength panel stamping forming, and for the hot forming technology, the cold punching shaping that B stand inner panel 1 and split type reinforcing plate all adopted can reduce the manufacturing cost of spare part, and the practicality is stronger.
Example four:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention comprises a B-pillar inner panel 1 and a B-pillar impact beam assembly 2, wherein the B-pillar impact beam assembly 2 comprises a split reinforcing plate and a bent tubular beam 24;
the split type reinforcing plate is provided with a groove matched with the tubular beam 24, the tubular beam 24 is positioned in the groove, the split type reinforcing plate sequentially comprises a B upright post upper reinforcing piece 21, a B upright post middle reinforcing piece 22 and a B upright post lower reinforcing piece 23 from top to bottom, the cross sections of the B upright post upper reinforcing piece 21, the B upright post middle reinforcing piece 22 and the B upright post lower reinforcing piece 23 are of a structure in a shape like a Chinese character 'ji', the B upright post upper reinforcing piece 21 is of a T-shaped structure, and the B upright post lower reinforcing piece 23 is of an inverted T-shaped structure;
split type reinforcing plate fixed mounting is on tubular beams 24, split type reinforcing plate and 1 fixed connection of B stand inner panel, the yield strength of split type reinforcing plate and B stand inner panel 1 is less than tubular beams 24's yield strength, tubular beams 24's elongation is less than split type reinforcing plate and B stand inner panel 1's elongation, the yield strength of reinforcement 21 is greater than the yield strength of reinforcement 23 under the B stand on the B stand, the elongation of reinforcement 21 is less than the elongation of reinforcement 23 under the B stand on the B stand.
In the embodiment, compared with the first embodiment, on the basis of realizing the soft and hard partition of the B-pillar assembly structure on the performance by utilizing the difference between the tube beam 24 and the combined type reinforcing plate as well as the energy absorption aspect between the B-pillar inner plate 1, the split type reinforcing plate is further optimized, and the tube beam 24 and the split type reinforcing plate are positioned by matching the tube beam 24 and the groove, so that the installation is more convenient; meanwhile, the contact area between the tubular beam 24 and the split type reinforcing plate can be increased, and the connection is more stable; three reinforcing members are combined into a split type reinforcing plate through the B-pillar upper reinforcing member 21, the B-pillar middle reinforcing member 22 and the B-pillar lower reinforcing member 23, and the B-pillar upper reinforcing member 21 is used for finishing the fixed connection of the upper part of the tubular beam 24 and the B-pillar inner plate 1; the middle part of the tubular beam 24 is fixedly connected with the inner plate 1 of the B upright post by the strengthening piece 22 in the B upright post, and an installation structure is provided for a hinge on a back door; the lower part of the tubular beam 24 is fixedly connected with the B upright post inner plate 1 by the B upright post lower reinforcement 23, and an installation structure is provided for a rear door lower hinge; therefore, the requirements on arrangement and installation of peripheral parts are met, the structural design that the cross sections of the upper reinforcing piece 21 of the B upright column, the middle reinforcing piece 22 of the B upright column and the lower reinforcing piece 23 of the B upright column are in a structure like a Chinese character 'ji', the installation space in the assembly structure of the B upright column is enlarged, and a sufficient installation space is provided for the tubular beam 24; the T-shaped two sides of the upper reinforcing part 21 of the B column are connected with the upper side beam of the side wall through spot welding, and the T-shaped two sides of the lower reinforcing part 23 of the B column are connected with the sill beam.
Example five:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention includes a B-pillar inner panel 1 and a B-pillar impact beam assembly 2;
the B upright post anti-collision beam assembly 2 comprises a split type reinforcing plate and bent tubular beams 24, the cross sections of the tubular beams 24 are circular, the tubular beams 24 are high-strength thin-wall round tubes and are manufactured by means of a 3D roll bending or hot air expansion process, the number of the tubular beams 24 is two, and the two tubular beams 24 are arranged side by side along the vehicle length direction;
split type reinforcing plate fixed mounting is on tubular beams 24, split type reinforcing plate and B stand inner panel 1 fixed connection, and the yield strength of split type reinforcing plate and B stand inner panel 1 is less than the yield strength of tubular beams 24, and the percentage elongation of tubular beams 24 is less than the percentage elongation of split type reinforcing plate and B stand inner panel 1, and the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, and the percentage elongation on split type reinforcing plate upper portion is less than the percentage elongation of split type reinforcing plate lower part.
In this embodiment, compared with the first embodiment, on the basis that the difference in energy absorption between the tube beam 24 and the combined reinforcing plate and the B-pillar inner plate 1 is utilized, so that the B-pillar assembly structure realizes the partition of soft and hard in performance, the tube beam 24 is further optimized, so that the tube beam 24 has higher structural strength and higher section bending modulus compared with the single-layer sheet metal section design in the shape like a Chinese character ji, and the cross section of the tube beam 24 is limited on the basis of a circle, so that the optimal combination of the outer diameter and the wall thickness of the tube beam 24 is realized, and the B-pillar assembly structure has higher side collision performance under the same weight.
Example six:
as shown in FIGS. 1 to 3, the B-pillar assembly structure capable of improving the collision performance comprises a B-pillar inner panel 1 and a B-pillar impact beam assembly 2, wherein the cross section of the upper part of the B-pillar inner panel 1 is W-shaped;
the B upright post anti-collision beam assembly 2 comprises a split type reinforcing plate and a bent tubular beam 24, and the cross section of the tubular beam 24 is circular;
the split type reinforcing plate is fixedly installed on the tubular beam 24, a groove matched with the tubular beam 24 is formed in the split type reinforcing plate, the tubular beam 24 is located in the groove, the split type reinforcing plate sequentially comprises an upper B stand column reinforcing piece 21, a middle B stand column reinforcing piece 22 and a lower B stand column reinforcing piece 23 from top to bottom, the cross sections of the upper B stand column reinforcing piece 21, the middle B stand column reinforcing piece 22 and the lower B stand column reinforcing piece 23 are in a reversed T-shaped structure, the upper B stand column reinforcing piece 21 is in a T-shaped structure, the lower B stand column reinforcing piece 23 is in a reversed T-shaped structure, and the split type reinforcing plate is fixedly connected with the inner plate 1 of the B stand column;
the yield strength of the split type reinforcing plate and the B pillar inner plate 1 is smaller than that of the tubular beam 24, the elongation rate of the tubular beam 24 is smaller than that of the split type reinforcing plate and the B pillar inner plate 1, the yield strength of the reinforcement 21 on the B pillar is larger than that of the reinforcement 23 under the B pillar, and the elongation rate of the reinforcement 21 on the B pillar is smaller than that of the reinforcement 23 under the B pillar.
In the embodiment, compared with the first embodiment, on the basis of utilizing the difference in energy absorption between the tubular beam 24 and the combined type reinforcing plate and the B-pillar inner plate 1 to realize the soft and hard partition of the B-pillar assembly structure in performance, the shapes of the B-pillar inner plate 1, the tubular beam 24 and the split type reinforcing plate are further optimized, and by setting the cross section of the upper part of the B-pillar inner plate 1 to be in a W shape, the W-shaped cross section has a higher section bending modulus, so that the self rigidity of the part can be improved; passing through a B-pillar upper reinforcing piece 21, a B-pillar middle reinforcing piece 22 and a B-pillar lower reinforcing piece 23, combining the three reinforcing pieces into a split reinforcing plate, and finishing the fixed connection of the upper part of a tubular beam 24 and the B-pillar inner plate 1 by the B-pillar upper reinforcing piece 21; the middle part of the tubular beam 24 is fixedly connected with the inner plate 1 of the B upright column by the reinforcing piece 22 in the B upright column, and an installation structure is provided for the upper hinge of the rear door; the lower part of the tubular beam 24 is fixedly connected with the B upright inner plate 1 by the B upright lower reinforcement 23, and an installation structure is provided for a rear door lower hinge; thereby meeting the requirements of arrangement and installation of peripheral parts.
Example seven:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention includes a B-pillar inner panel 1 and a B-pillar impact beam assembly 2;
the B upright post inner plate 1 is of a single-layer sheet metal structure, the cross section of the upper part of the B upright post inner plate 1 is W-shaped, and the B upright post inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates;
the B upright post anti-collision beam assembly 2 comprises split type reinforcing plates and bent tubular beams 24, the cross sections of the tubular beams 24 are circular, the number of the tubular beams 24 is two, the two tubular beams 24 are arranged side by side along the vehicle length direction, and the tubular beams 24 are high-strength thin-wall round tubes and are manufactured by means of a 3D roll bending or hot air expansion process;
split type reinforcing plate fixed mounting is on tubular beams 24, split type reinforcing plate and B stand inner panel 1 fixed connection, and the yield strength of split type reinforcing plate and B stand inner panel 1 is less than the yield strength of tubular beams 24, and the percentage elongation of tubular beams 24 is less than the percentage elongation of split type reinforcing plate and B stand inner panel 1, and the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, and the percentage elongation on split type reinforcing plate upper portion is less than the percentage elongation of split type reinforcing plate lower part.
In the embodiment, compared with the first embodiment, on the basis of realizing soft and hard partition on the performance of the B-pillar assembly structure by utilizing the difference between the tubular beam 24 and the combined reinforcing plate as well as the B-pillar inner plate 1 in terms of energy absorption, the B-pillar inner plate 1 is further optimized, the cross section of the upper part of the B-pillar inner plate 1 is in a W shape by a single-layer high-strength plate metal plate structure in a stamping forming mode, and the weight of the B-pillar assembly structure is further reduced by utilizing the single-layer metal plate structure of the B-pillar inner plate 1; the cross section of the upper part of the B upright post inner plate 1 is W-shaped, the W-shaped section has higher section bending modulus, the self rigidity of parts can be improved, and meanwhile, the structure can effectively meet the requirement of arrangement space of the parts inside and outside the vehicle; the B stand column inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates, and compared with a hot forming process, the B stand column inner plate 1 and the split type reinforcing plate are both formed by cold punching, so that the production and manufacturing cost of parts can be reduced, and the practicability is high;
meanwhile, the tubular beams 24 are further optimized, so that compared with the single-layer metal plate section design in the shape like a Chinese character ji, the tubular beams 24 are higher in structural strength and higher in section bending modulus, the cross sections of the tubular beams 24 are limited on the basis of a circle, the optimal combination of the outer diameter and the wall thickness of the tubular beams 24 is achieved, and the B-pillar assembly structure has higher side collision performance under the same weight.
Example eight:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the collision performance of the invention comprises a B-pillar inner panel 1 and a B-pillar impact beam assembly 2, wherein the B-pillar inner panel 1 is of a single-layer sheet metal structure, the cross section of the upper part of the B-pillar inner panel 1 is in a W shape, and the B-pillar inner panel 1 and the split type reinforcing plate are both formed by punching high-strength plates;
the B stand column anti-collision beam assembly 2 comprises a split type reinforcing plate and a bent pipe beam 24, the split type reinforcing plate is provided with a groove matched with the pipe beam 24, the pipe beam 24 is positioned in the groove, the split type reinforcing plate sequentially comprises a B stand column upper reinforcing piece 21, a B stand column middle reinforcing piece 22 and a B stand column lower reinforcing piece 23 from top to bottom, the cross sections of the B stand column upper reinforcing piece 21, the B stand column middle reinforcing piece 22 and the B stand column lower reinforcing piece 23 are in a reversed T-shaped structure, the B stand column upper reinforcing piece 21 is in a T-shaped structure, and the B stand column lower reinforcing piece 23 is in an inverted T-shaped structure;
split type reinforcing plate fixed mounting is on tubular beam 24, split type reinforcing plate and 1 fixed connection of B stand inner panel, the yield strength of split type reinforcing plate and B stand inner panel 1 is less than the yield strength of tubular beam 24, the percentage elongation of tubular beam 24 is less than the percentage elongation of split type reinforcing plate and B stand inner panel 1, the yield strength of reinforcement 21 is greater than the yield strength of reinforcement 23 under the B stand on the B stand, the percentage elongation of reinforcement 21 is less than the percentage elongation of reinforcement 23 under the B stand on the B stand.
In the embodiment, compared with the first embodiment, on the basis of realizing soft and hard partition on the performance of the B-pillar assembly structure by utilizing the difference between the tubular beam 24 and the combined reinforcing plate as well as the B-pillar inner plate 1 in terms of energy absorption, the B-pillar inner plate 1 is further optimized, the cross section of the upper part of the B-pillar inner plate 1 is in a W shape by a single-layer high-strength plate metal plate structure in a stamping forming mode, and the weight of the B-pillar assembly structure is further reduced by utilizing the single-layer metal plate structure of the B-pillar inner plate 1; the cross section of the upper part of the B upright post inner plate 1 is W-shaped, the W-shaped section has higher section bending modulus, the self rigidity of parts can be improved, and meanwhile, the structure can effectively meet the requirement of arrangement space of the parts inside and outside the vehicle; the B stand column inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates, and compared with a hot forming process, the B stand column inner plate 1 and the split type reinforcing plate are both formed by cold punching, so that the production and manufacturing cost of parts can be reduced, and the practicability is high;
the split type reinforcing plate is further optimized, and the pipe beam 24 and the split type reinforcing plate are positioned through mutual matching of the pipe beam 24 and the groove, so that the split type reinforcing plate is more convenient to install; meanwhile, the contact area between the tubular beam 24 and the split type reinforcing plate can be increased, and the connection is more stable; three reinforcing members are combined into a split type reinforcing plate through the B upright post upper reinforcing member 21, the B upright post middle reinforcing member 22 and the B upright post lower reinforcing member 23, and the B upright post upper reinforcing member 21 is used for completing the fixed connection of the upper part of the tubular beam 24 and the B upright post inner plate 1; the middle part of the tubular beam 24 is fixedly connected with the inner plate 1 of the B upright post by the strengthening piece 22 in the B upright post, and an installation structure is provided for a hinge on a back door; the lower part of the tubular beam 24 is fixedly connected with the B upright post inner plate 1 by the B upright post lower reinforcement 23, and an installation structure is provided for a rear door lower hinge; therefore, the requirements on arrangement and installation of peripheral parts are met, the structural design that the cross sections of the upper reinforcing piece 21 of the B upright column, the middle reinforcing piece 22 of the B upright column and the lower reinforcing piece 23 of the B upright column are in a structure like a Chinese character 'ji', the installation space in the assembly structure of the B upright column is enlarged, and a sufficient installation space is provided for the tubular beam 24; the T-shaped two sides of the upper B-column reinforcement 21 are connected with the upper side beam of the side wall through spot welding, and the T-shaped two sides of the lower B-column reinforcement 23 are connected with the sill beam.
Example nine:
as shown in fig. 1 to 3, the B-pillar assembly structure capable of improving the impact performance of the invention includes a B-pillar inner panel 1 and a B-pillar impact beam assembly 2;
the B upright post inner plate 1 is of a single-layer metal plate structure, the cross section of the upper part of the B upright post inner plate 1 is W-shaped, and the B upright post inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates;
the B upright post anti-collision beam assembly 2 comprises a split type reinforcing plate and a bent tubular beam 24, the split type reinforcing plate is provided with a groove matched with the tubular beam 24, the tubular beam 24 is positioned in the groove, the split type reinforcing plate sequentially comprises a B upright post upper reinforcing piece 21, a B upright post middle reinforcing piece 22 and a B upright post lower reinforcing piece 23 from top to bottom, the cross sections of the B upright post upper reinforcing piece 21, the B upright post middle reinforcing piece 22 and the B upright post lower reinforcing piece 23 are of a structure in a shape like a Chinese character 'ji', the B upright post upper reinforcing piece 21 is of a T-shaped structure, and the B upright post lower reinforcing piece 23 is of an inverted T-shaped structure;
the cross section of each tubular beam 24 is circular, the number of the tubular beams 24 is two, the two tubular beams 24 are arranged side by side along the lathe length direction, and the tubular beams 24 are high-strength thin-wall round tubes and are manufactured by means of a 3D roll bending or hot air expansion process;
split type reinforcing plate fixed mounting is on tubular beam 24, split type reinforcing plate and 1 fixed connection of B stand inner panel, the yield strength of split type reinforcing plate and B stand inner panel 1 is less than the yield strength of tubular beam 24, the percentage elongation of tubular beam 24 is less than the percentage elongation of split type reinforcing plate and B stand inner panel 1, the yield strength of reinforcement 21 is greater than the yield strength of reinforcement 23 under the B stand on the B stand, the percentage elongation of reinforcement 21 is less than the percentage elongation of reinforcement 23 under the B stand on the B stand.
Example ten:
as shown in fig. 1 to fig. 3, the automobile of the present invention includes a B-pillar assembly structure capable of improving crash performance, which includes a B-pillar inner panel 1 and a B-pillar impact beam assembly 2;
the B upright post inner plate 1 is of a single-layer sheet metal structure, the cross section of the upper part of the B upright post inner plate 1 is W-shaped, and the B upright post inner plate 1 and the split type reinforcing plate are both formed by punching high-strength plates;
the B upright post anti-collision beam assembly 2 comprises a split type reinforcing plate and a bent tubular beam 24, the split type reinforcing plate is provided with a groove matched with the tubular beam 24, the tubular beam 24 is positioned in the groove, the split type reinforcing plate sequentially comprises a B upright post upper reinforcing piece 21, a B upright post middle reinforcing piece 22 and a B upright post lower reinforcing piece 23 from top to bottom, the cross sections of the B upright post upper reinforcing piece 21, the B upright post middle reinforcing piece 22 and the B upright post lower reinforcing piece 23 are of a structure in a shape like a Chinese character 'ji', the B upright post upper reinforcing piece 21 is of a T-shaped structure, and the B upright post lower reinforcing piece 23 is of an inverted T-shaped structure;
the cross section of each tubular beam 24 is circular, the number of the tubular beams 24 is two, the two tubular beams 24 are arranged side by side along the vehicle length direction, and the tubular beams 24 are high-strength thin-wall round tubes and are manufactured by means of a 3D roll bending or hot air expansion process;
split type reinforcing plate fixed mounting is on tubular beam 24, split type reinforcing plate and 1 fixed connection of B stand inner panel, the yield strength of split type reinforcing plate and B stand inner panel 1 is less than the yield strength of tubular beam 24, the percentage elongation of tubular beam 24 is less than the percentage elongation of split type reinforcing plate and B stand inner panel 1, the yield strength of reinforcement 21 is greater than the yield strength of reinforcement 23 under the B stand on the B stand, the percentage elongation of reinforcement 21 is less than the percentage elongation of reinforcement 23 under the B stand on the B stand.
The above description details the B-pillar assembly structure and the automobile capable of improving the collision performance provided by the present invention. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It should be noted that references in the specification to "one embodiment," "an embodiment," "some alternative embodiments," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that "on 8230" \ 8230on "," on 82303030, and "on 82308230; \ 8230on" \ 8230, and "on 8230;" on 8230, should be interpreted in the broadest sense in this disclosure, such that "on 8230;" on not only means "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above 8230or" above 8230 "\8230"; not only includes the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (12)
1. The utility model provides a can promote collision performance's B post assembly structure, includes B stand inner panel (1) and B stand anticollision roof beam assembly (2), its characterized in that: b stand anticollision roof beam assembly (2) are including split type reinforcing plate and crooked tubular beams (24), split type reinforcing plate fixed mounting is on tubular beams (24), split type reinforcing plate and B stand inner panel (1) fixed connection, the yield strength of split type reinforcing plate and B stand inner panel (1) is less than the yield strength of tubular beams (24), the percentage elongation of tubular beams (24) is less than the percentage elongation of split type reinforcing plate and B stand inner panel (1), the yield strength on split type reinforcing plate upper portion is greater than the yield strength of split type reinforcing plate lower part, the percentage elongation on split type reinforcing plate upper portion is less than the percentage elongation of split type reinforcing plate lower part.
2. The B-pillar assembly structure and the automobile capable of improving the collision performance according to claim 1, wherein: the B upright post inner plate (1) is of a single-layer sheet metal structure.
3. The B-pillar assembly structure capable of improving collision performance and the automobile as claimed in claim 1, wherein: the cross section of the upper part of the B upright post inner plate (1) is W-shaped.
4. The B-pillar assembly structure and the automobile capable of improving the collision performance according to claim 1, wherein: b stand inner panel (1) and split type reinforcing plate all adopt high strength panel stamping forming.
5. The B-pillar assembly structure capable of improving collision performance and the automobile as claimed in claim 1, wherein: the split type reinforcing plate is provided with a groove matched with the tubular beam (24), and the tubular beam (24) is positioned in the groove.
6. The B-pillar assembly structure and the automobile capable of improving the collision performance according to claim 1, wherein: the split type reinforcing plate sequentially comprises a B upright post upper reinforcing piece (21), a B upright post middle reinforcing piece (22) and a B upright post lower reinforcing piece (23) from top to bottom, the yield strength of the B upright post upper reinforcing piece (21) is greater than that of the B upright post lower reinforcing piece (23), and the elongation rate of the B upright post upper reinforcing piece (21) is less than that of the B upright post lower reinforcing piece (23).
7. The B-pillar assembly structure capable of improving collision performance and the automobile as claimed in claim 6, wherein: the cross sections of the B upright post upper reinforcing piece (21), the B upright post middle reinforcing piece (22) and the B upright post lower reinforcing piece (23) are in a structure like a Chinese character 'ji'.
8. The B-pillar assembly structure and the automobile capable of improving the collision performance according to claim 6, wherein: the B upright post upper reinforcing piece (21) is of a T-shaped structure, and the B upright post lower reinforcing piece (23) is of an inverted T-shaped structure.
9. The B-pillar assembly structure and the automobile capable of improving the collision performance according to claim 1, wherein: the cross section of the tubular beam (24) is circular.
10. The B-pillar assembly structure and the automobile capable of improving the crash performance according to claim 9, wherein: the number of the tubular beams (24) is two, and the two tubular beams (24) are arranged side by side along the vehicle length direction.
11. The B-pillar assembly structure capable of improving collision performance and the automobile as claimed in claim 1, wherein: the tubular beams (24) are high-strength thin-wall round tubes and are manufactured by means of 3D roll bending or hot air expansion technology.
12. An automobile, characterized in that: a B-pillar assembly structure including a structure for improving collision performance as recited in any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211162631.4A CN115583289A (en) | 2022-09-23 | 2022-09-23 | B-pillar assembly structure capable of improving collision performance and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211162631.4A CN115583289A (en) | 2022-09-23 | 2022-09-23 | B-pillar assembly structure capable of improving collision performance and automobile |
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| Publication Number | Publication Date |
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| CN115583289A true CN115583289A (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211162631.4A Pending CN115583289A (en) | 2022-09-23 | 2022-09-23 | B-pillar assembly structure capable of improving collision performance and automobile |
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| Country | Link |
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| CN (1) | CN115583289A (en) |
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- 2022-09-23 CN CN202211162631.4A patent/CN115583289A/en active Pending
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