CN112441130A - Automobile doorsill beam, automobile body and automobile - Google Patents

Automobile doorsill beam, automobile body and automobile Download PDF

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Publication number
CN112441130A
CN112441130A CN201910833182.3A CN201910833182A CN112441130A CN 112441130 A CN112441130 A CN 112441130A CN 201910833182 A CN201910833182 A CN 201910833182A CN 112441130 A CN112441130 A CN 112441130A
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CN
China
Prior art keywords
automobile
threshold
beam body
doorsill
vehicle
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Pending
Application number
CN201910833182.3A
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Chinese (zh)
Inventor
李启斌
姜大修
吴俊�
欧天巧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Liankong Technologies Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Automobile Research and Development Co Ltd
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Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Ningbo Geely Automobile Research and Development Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201910833182.3A priority Critical patent/CN112441130A/en
Publication of CN112441130A publication Critical patent/CN112441130A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20Floors or bottom sub-units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention discloses an automobile doorsill beam, an automobile body and an automobile, wherein the automobile doorsill beam comprises a doorsill beam body and a reinforcing piece; one end of the threshold beam body is connected with the lower part of an A column of a vehicle, and the threshold beam body is of a hollow structure; the reinforcing piece is arranged in a hollow structure at a position corresponding to the lower part of the A column on the threshold beam body; the reinforcement includes that skeleton and structure are glued, the structure is glued and is located the skeleton with between the inner wall of threshold roof beam body, the structure is glued and can be expanded in order to support threshold roof beam body. Compared with the prior art, the invention can effectively reduce the deformation of the sill beam, ensure the collision performance of the whole vehicle and improve the safety performance of the vehicle; in addition, the plastic framework and the structural adhesive can greatly reduce the weight of the threshold beam, thereby being beneficial to the light-weight design of the vehicle and saving the manufacturing cost.

Description

Automobile doorsill beam, automobile body and automobile
Technical Field
The invention relates to the technical field of automobile body-in-white, in particular to an automobile threshold beam, an automobile body and an automobile.
Background
With the development of the automobile industry, the safety requirements of people on automobile driving are increasingly improved. The safety performance of the whole automobile is one of important indexes reflecting the design level of the automobile and is also a key factor influencing the psychology of consumers. Minimizing the mortality and injury level of occupants in a vehicle, particularly a passenger vehicle, during a traffic collision event is a core design technology for the development and manufacture of a complete vehicle. In a traffic accident, the probability of a side impact on the automobile is very high, and therefore, it is important to ensure the safety of passengers when the automobile is impacted on the side.
The automobile body is provided with three types of upright columns, namely an A column, a B column and a C column from front to back in sequence. For cars, the pillars, in addition to supporting, also function as door frames. Wherein, the A column is a connecting column for connecting the roof and the front cabin on the left front side and the right front side. The structural strength of the a-pillar plays a very important role in frontal and offset crash during a vehicle collision, and directly affects the structural integrity of the passenger compartment and the passenger living space. Motor vehicle bodies typically have an automotive rocker beam structure extending longitudinally along the body to define the bottom of front and rear door openings, and the rocker of the body is severely deformed due to concentrated stress in a side collision of the vehicle. As the degree of deformation of the rocker increases, and the amount of center filler entering the vehicle increases, the occupant may be more seriously injured. Therefore, the automobile doorsill beam is a key part of an automobile body, plays an important role in structural strength, rigidity and collision performance of the whole automobile, and is an important structure for guaranteeing the side collision safety performance of the automobile.
The automobile doorsill beam is generally welded to corresponding positions of an A pillar, a B pillar and a C pillar, and the lower part of the A pillar is in a lap joint with the doorsill, so that the structure is weak due to the influence of a welding process and design requirements, the lap joint area is insufficient in rigidity and strength, and the energy absorption space is limited. When the whole vehicle is in 25-offset collision, the threshold beam in the lower area of the A column is easy to deform seriously, so that the problem of overlarge invasion is caused, and the safety performance of the vehicle is further influenced. The threshold is generally reinforced by changing the cross section of the threshold or increasing the wall thickness of the threshold in the prior art, and the two modes relatively increase the weight of the threshold beam, are not beneficial to the light-weight design of a vehicle, and have more complex process and higher manufacturing cost.
Therefore, there is a need for an improved rocker beam for a vehicle that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an automobile doorsill beam, which is used for overcoming the technical problem that the doorsill beam at the lower area of an A-pillar is easy to deform seriously to cause overlarge invasion when the automobile doorsill beam in the prior art is subjected to side collision.
The invention is realized by the following technical scheme:
an automobile doorsill beam comprises a doorsill beam body and a reinforcing piece; one end of the threshold beam body is connected with the lower part of an A column of a vehicle, and the threshold beam body is of a hollow structure; the reinforcing piece is arranged in a hollow structure at a position corresponding to the lower part of the A column on the threshold beam body; the reinforcement includes that skeleton and structure are glued, the structure is glued and is located the skeleton with between the inner wall of threshold roof beam body, the structure is glued and can be expanded in order to support threshold roof beam body.
Furthermore, the inside of threshold roof beam body still is equipped with and is used for with the biography power roof beam of a plurality of cavity is subdivided into to hollow structure, threshold roof beam body with the corresponding position department in A post below has first cavity, the reinforcement is located in the first cavity.
Further, the shape of skeleton with first cavity looks adaptation, the skeleton is equipped with the jack catch along length direction's both ends, the skeleton passes through the jack catch joint in the chamber wall of first cavity.
Further, the both ends of reinforcement are located respectively the threshold roof beam body with both sides around A post laminating plane department, the tip of reinforcement is apart from the distance of laminating plane department is 60 ~ 100 mm.
Furthermore, a plurality of reinforcing ribs are arranged in the framework along the length direction of the reinforcing piece, and the reinforcing ribs are X-shaped.
Furthermore, the framework is made of engineering plastics; the threshold roof beam body's material is the aluminium alloy.
Further, the material of the framework is PA66+ GF 30.
Further, the gap between the framework and the cavity wall of the first cavity is 1.5-3 mm.
Accordingly, the present invention provides a vehicle body comprising the above-described automotive rocker beam.
Accordingly, the invention provides an automobile which comprises the automobile body.
The implementation of the invention has the following beneficial effects:
(1) according to the automobile doorsill beam, the automobile body and the automobile, the easily-deformable area at the lower part of the A-pillar is reinforced and supported through the reinforcing piece, the reinforcing piece adopts the plastic framework and the structural adhesive, and the structural adhesive can better support the cavity of the aluminum profile doorsill body after being expanded, so that the doorsill beam is uniformly stressed, the deformation of the doorsill beam can be effectively reduced, the collision performance of the whole automobile is ensured, and the safety performance of the automobile is improved.
(2) According to the automobile doorsill beam, the automobile body and the automobile, the reinforcement is adopted for carrying out local support to ensure the anti-collision performance of the automobile doorsill beam, the whole cavity of the doorsill beam is not required to be completely changed, the wall thickness of the doorsill beam is not required to be increased, compared with the prior art that the doorsill is reinforced by changing the cross section or increasing the wall thickness, the manufacturing is convenient, the weight of the doorsill beam can be greatly reduced by adopting the plastic framework and the structural adhesive, the light-weight design of the automobile is facilitated, and the manufacturing cost can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic cross-sectional view of an automotive rocker beam in an embodiment of the invention;
FIG. 2 is a schematic structural view of an automotive rocker beam in an embodiment of the invention;
FIG. 3 is a schematic structural view of a reinforcing member in an embodiment of the present invention;
wherein the reference numerals in the figures correspond to: 1-sill beam body, 11-first force transfer beam, 12-second force transfer beam, 111-first cavity, 2-reinforcement, 21-reinforcing rib and 22-claw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following examples. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms first, second, third and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
In the present embodiment, referring to fig. 1-3, there is provided an automobile rocker beam, comprising a rocker beam body 1 and a reinforcement 2; one end of the threshold beam body 1 is connected with the lower part of an A column of a vehicle, and the interior of the threshold beam body 1 is of a hollow structure; the position of the reinforcement 2 corresponds to the lower part of the A column, and the reinforcement 2 is arranged in a hollow structure of the threshold beam body 1 at the position corresponding to the lower part of the A column; the reinforcement 2 comprises a framework and a structural adhesive, the structural adhesive is arranged between the framework and the inner wall of the threshold beam body 1, and the structural adhesive can expand to support the threshold beam body 1. The automobile doorsill beam of this embodiment reinforces the support to 1 yielding region of doorsill beam body of A post lower part through the reinforcement, and after the application heating was treated in the installation completion, the expansion can be better support doorsill beam body 1 to the structure glue, makes the doorsill beam atress even, can reduce the deflection of doorsill beam body 1 effectively, is favorable to improving the collision performance of whole car. The car threshold roof beam of this embodiment, on the one hand, on the basis that does not change threshold roof beam body structure, the regional threshold roof beam of A post lower part warp seriously when having solved the biasing collision, leads to the too big problem of invasion, has reduced the injury that probably leads to the fact the passenger to factor of safety when improving the vehicle and taking place the side impact. On the other hand, the frame is combined with the reinforcement 2 made of structural adhesive, so that the weight of the vehicle doorsill beam is greatly reduced, and the light-weight design of the vehicle is facilitated.
In this embodiment, threshold roof beam body 1's material is the aluminium alloy, adopts threshold roof beam body 1 of this material, and weight is little, and structural strength is big, is favorable to the lightweight design of car. The threshold beam body 1 is internally provided with a force transfer beam for subdividing the hollow structure into a plurality of cavities, the threshold beam body 1 is provided with a first cavity 111 at a position corresponding to the lower part of the A column, and the reinforcement 2 is arranged in the first cavity 111. The driving beam comprises at least one first driving beam 11 and at least one second driving beam 12, the first driving beam 11 is arranged along the vertical direction, the second driving beam 12 is arranged along the horizontal direction, and the first driving beam 11 and the second driving beam 12 extend along the length direction of the vehicle body, so that the threshold beam body 1 forms a grid box-shaped structure beneficial to energy absorption, the requirements on rigidity and strength can be met when the vehicle is subjected to frontal collision and side collision, and the weight and the cost of parts are reduced. And, the setting of biography power roof beam has still increased threshold roof beam body 1's intensity, and the frame construction that has grid formula cavity that this threshold roof beam body 1 formed for the crashworthiness of vehicle is more outstanding, excellent.
It should be noted that the arrangement of the load beam inside the rocker body 1 is not limited to the one described in the present embodiment, and in other embodiments, the load beam may be arranged in other shapes and arrangements to meet the design requirements of the rocker beam.
In a specific embodiment, the shape of the framework is matched with that of the first cavity 111, the two ends of the framework in the length direction are provided with the claws 22, and the framework is clamped on the cavity wall of the first cavity 111 through the claws 22, so that the framework is stably and reliably connected with the sill beam body 1.
In other embodiments, a plurality of claws 22 may be provided as required to increase the stability of the connection of the framework to the wall of the first cavity 111 and thus the structural stability of the sill.
It should be noted that the connection method of the framework and the rocker beam body 1 is not limited to the above-mentioned clamping, and other fixing methods can be adopted as long as the same function can be achieved.
In this embodiment, according to the biography power passageway when biasing collision, only strengthen the atress region, the both ends of reinforcement 2 are located threshold roof beam body 1 respectively with both sides around A post laminating plane department, the tip of reinforcement 2 is 60 ~ 100mm apart from the distance of laminating plane department. Beyond this area the contribution of the reinforcement 2 decreases rapidly, i.e. a stronger structure is added but the contribution to crash performance is smaller.
In this embodiment, referring to fig. 3, a plurality of reinforcing ribs 21 are arranged inside the framework along the length direction of the reinforcement 2, and the reinforcing ribs 21 reinforce the stress direction of the threshold beam to increase the structural strength of the threshold, and enable the transmission and dispersion of the side impact force to be effectively guided in time when side impact occurs, so that the weight of the threshold beam is reduced while the overall impact strength of the threshold beam is improved, and the requirement for light weight of the vehicle is met.
In a specific embodiment, the reinforcing rib 21 is in an X shape, and the X-shaped reinforcing rib 21 is beneficial to improving the overall strength of the threshold, so that all parts on the threshold beam are stressed uniformly, and the anti-collision performance of the threshold beam is improved.
Of course, in other embodiments, the ribs 21 in the frame may have other shapes or other directions as long as the same functions as described above can be achieved.
As a preferred embodiment, the framework is made of engineering plastics, on one hand, the engineering plastics have high mechanical strength and can play a good role in supporting and reinforcing the sill beam body 1, and on the other hand, the framework is light in weight, so that the weight of the sill can be reduced, and the light design of a vehicle is facilitated.
Further preferably, the material of skeleton is PA66+ GF30, and PA66+ GF 30's material has the characteristic of high strength, is applicable to automobile parts, and the skeleton adopts this material, can guarantee threshold roof beam body 1 non-deformable when the vehicle bumps, plays better supporting role to threshold roof beam body 1, is favorable to improving the crashworthiness of vehicle.
The material of the skeleton of the stiffener 2 is not limited to PA66+ GF30, and in other embodiments, other kinds of engineering plastics may be used as the skeleton as long as the same function as described above can be achieved.
In a specific embodiment, in order to facilitate the installation of the reinforcing member 2 and to allow for a space for the expansion of the structural adhesive, the gap between the frame and the inner cavity wall of the first cavity 111 is 1.5-3 mm.
In a preferred embodiment, the gap between the framework and the inner cavity wall of the first cavity 111 is 2mm, so that the structural adhesive can effectively support the rocker body 1 after expansion.
The car threshold roof beam in this embodiment, reinforcement 2 and threshold roof beam body 1's connected mode is the joint, and the skeleton material is the duroplasts, and supplementary material is glued for the structure, and the principle is strengthened for the structure to glue the inflation back, fills the first cavity 111 in place, strengthens the whole region of filling position, and aluminium alloy threshold roof beam body 1 almost does not have deformation at this filling position, is favorable to guaranteeing whole car collision performance, has greatly improved the security performance of vehicle. And adopt plastics skeleton and structural adhesive can reduce the weight of threshold roof beam by a wide margin, satisfied the lightweight design requirement of vehicle to can practice thrift manufacturing cost.
Accordingly, the present invention provides a vehicle body that includes the rocker beam of the vehicle as in the above embodiments. The automobile doorsill beam can effectively reduce the deformation of the doorsill beam, is beneficial to improving the collision performance of the whole automobile and further improves the safety of the automobile; the light weight design of the vehicle is facilitated; the process is simple and the manufacturing cost is low.
Accordingly, the invention provides an automobile which comprises the automobile body in the embodiment, and the automobile adopts the automobile body, so that the collision safety performance is improved, and meanwhile, the light weight design requirement of the automobile is met.
The above embodiment of the invention has the following beneficial effects:
(1) according to the automobile doorsill beam, the automobile body and the automobile, the easily-deformable area at the lower part of the A-pillar is reinforced and supported through the reinforcing piece, the reinforcing piece adopts the plastic framework and the structural adhesive, and the structural adhesive can better support the cavity of the aluminum profile doorsill body after being expanded, so that the doorsill beam is uniformly stressed, the deformation of the doorsill beam can be effectively reduced, the collision performance of the whole automobile is ensured, and the safety performance of the automobile is improved.
(2) According to the automobile doorsill beam, the automobile body and the automobile, the reinforcement is adopted for carrying out local support to ensure the anti-collision performance of the automobile doorsill beam, the whole cavity of the doorsill beam is not required to be completely changed, the wall thickness of the doorsill beam is not required to be increased, compared with the prior art that the doorsill is reinforced by changing the cross section or increasing the wall thickness, the manufacturing is convenient, the weight of the doorsill beam can be greatly reduced by adopting the plastic framework and the structural adhesive, the light-weight design of the automobile is facilitated, and the manufacturing cost can be saved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. An automobile doorsill beam characterized by comprising a doorsill beam body (1) and a reinforcement (2);
one end of the threshold beam body (1) is connected with the lower part of an A column of a vehicle, and the threshold beam body (1) is of a hollow structure;
the reinforcing piece (2) is arranged in a hollow structure at a position corresponding to the lower part of the A column of the threshold beam body (1);
the reinforcement (2) comprises a framework and a structural adhesive, the structural adhesive is arranged between the framework and the inner wall of the threshold beam body (1), and the structural adhesive can expand to support the threshold beam body (1).
2. The vehicle rocker beam according to claim 1, characterised in that the rocker beam body (1) is further provided with a force transfer beam for subdividing the hollow structure into a number of cavities, the rocker beam body (1) having a first cavity (111) at a location corresponding to below the a-pillar, the reinforcement (2) being provided in the first cavity (111).
3. The automobile doorsill beam according to claim 2, characterized in that the shape of the framework is matched with the first cavity (111), the framework is provided with claws (22) at two ends along the length direction, and the framework is clamped on the cavity wall of the first cavity (111) through the claws (22).
4. The automobile doorsill beam according to claim 1, characterized in that both ends of the reinforcement (2) are respectively located at the front and rear sides of the attaching plane of the doorsill beam body (1) and the A-pillar, and the distance from the end of the reinforcement (2) to the attaching plane is 60-100 mm.
5. The rocker beam according to claim 1, characterised in that the frame is provided with a number of reinforcement ribs (21) in its interior in the direction of the length of the reinforcement (2), the reinforcement ribs (21) being "X" -shaped.
6. The automobile doorsill beam of claim 1, wherein the framework is made of engineering plastic; the threshold beam body (1) is made of aluminum profiles.
7. The rocker beam of claim 6, wherein the framework is PA66+ GF 30.
8. The vehicle rocker beam according to claim 2, characterised in that the gap between the skeleton and the wall of the first cavity (111) is 1.5-3 mm.
9. A vehicle body characterized by comprising the automotive rocker beam of any one of claims 1-8.
10. An automobile comprising the body of claim 9.
CN201910833182.3A 2019-09-04 2019-09-04 Automobile doorsill beam, automobile body and automobile Pending CN112441130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910833182.3A CN112441130A (en) 2019-09-04 2019-09-04 Automobile doorsill beam, automobile body and automobile

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Application Number Priority Date Filing Date Title
CN201910833182.3A CN112441130A (en) 2019-09-04 2019-09-04 Automobile doorsill beam, automobile body and automobile

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CN112441130A true CN112441130A (en) 2021-03-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113998003A (en) * 2021-11-29 2022-02-01 浙江吉利控股集团有限公司 Threshold roof beam subassembly and car
CN114313022A (en) * 2021-10-09 2022-04-12 浙江零跑科技股份有限公司 Aluminum extruded section vehicle body structure for new energy automobile
CN115257936A (en) * 2022-08-12 2022-11-01 浙江吉利控股集团有限公司 Threshold roof beam, side wall assembly and vehicle

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CN208007098U (en) * 2018-02-12 2018-10-26 北京汽车股份有限公司 A kind of threshold stiffening device and automobile
CN208393477U (en) * 2018-05-24 2019-01-18 浙江众泰汽车制造有限公司 A kind of front longitudinal beam structure of automobile

Patent Citations (11)

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Publication number Priority date Publication date Assignee Title
DE102004002297A1 (en) * 2004-01-16 2005-08-18 Audi Ag Light alloy extruded side sill for vehicle construction has reinforcing inserts at support points for the upright frames
JP2009298335A (en) * 2008-06-16 2009-12-24 Honda Motor Co Ltd Vehicular body upper structure
JP2013121799A (en) * 2011-12-12 2013-06-20 Toyota Motor Corp Vehicle upper structure
CN104340276A (en) * 2013-08-09 2015-02-11 大众汽车有限公司 Vehicle body
JP2015104949A (en) * 2013-11-28 2015-06-08 河西工業株式会社 Vehicular ceiling material
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114313022A (en) * 2021-10-09 2022-04-12 浙江零跑科技股份有限公司 Aluminum extruded section vehicle body structure for new energy automobile
CN113998003A (en) * 2021-11-29 2022-02-01 浙江吉利控股集团有限公司 Threshold roof beam subassembly and car
CN115257936A (en) * 2022-08-12 2022-11-01 浙江吉利控股集团有限公司 Threshold roof beam, side wall assembly and vehicle

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