CN217994560U

CN217994560U - Front side member and vehicle

Info

Publication number: CN217994560U
Application number: CN202220679959.2U
Authority: CN
Inventors: 盛守增
Original assignee: Beijing Chehejia Automobile Technology Co Ltd
Current assignee: Beijing Chehejia Automobile Technology Co Ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-12-09
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a longeron body and vehicle, the front longitudinal includes the longeron body, the longeron body includes at least along first energy-absorbing district and the second energy-absorbing district that its length direction links to each other, be equipped with the muscle that contracts of ulcerate on the first energy-absorbing district, second energy-absorbing district is equipped with the elastic component that accessible elastic deformation absorbed kinetic energy. The utility model discloses front longitudinal is through setting up first energy-absorbing district and second energy-absorbing district, adopts the kinetic energy that the vehicle produced because of the collision in the energy-absorbing mode furthest of difference, avoids unnecessary kinetic energy to continue passenger cabin as far as possible, has guaranteed the integrality in passenger cabin, has improved the factor of safety of vehicle.

Description

Front side member and vehicle

Technical Field

The utility model relates to a vehicle manufacturing technical field especially relates to a front longitudinal and vehicle.

Background

The automobile safety is more and more emphasized by people, a front longitudinal beam is positioned at the front part of an automobile and is a key sensitive part of the front collision safety design of the automobile, the energy ratio of the front longitudinal beam absorbed by all automobile body parts is more than 50%, so the energy absorption capacity and the deformation mode of the front longitudinal beam determine the size of a force transmission path and the intrusion amount of a cab in collision, the capacity of the front longitudinal beam in the related technology for absorbing kinetic energy is limited, and the redundant kinetic energy generated in collision can continue to compress the cab, so that the integrity of the cab is difficult to maintain, the living space of a passenger cab is compressed, and therefore, how to improve the energy absorption performance of the front longitudinal beam to improve the safety of the automobile is a key technical problem to be solved by technicians in the field.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a front longitudinal beam that energy-absorbing performance is good.

The embodiment of the utility model provides a vehicle with above-mentioned front longitudinal is still provided.

The utility model discloses front longitudinal includes the longeron body, the longeron body includes at least along the continuous first energy-absorbing district of its length direction and second energy-absorbing district, be equipped with the muscle that contracts of ulcerate on the first energy-absorbing district, the second energy-absorbing district is equipped with the elastic component that accessible elastic deformation absorbed kinetic energy.

The utility model discloses front longitudinal is through setting up first energy-absorbing district and second energy-absorbing district, adopts the kinetic energy that the vehicle produced because of the collision in the energy-absorbing mode furthest of difference, avoids unnecessary kinetic energy to continue passenger cabin as far as possible, has guaranteed the integrality in passenger cabin, has improved the factor of safety of vehicle.

In some embodiments, the crush ribs are strip-shaped grooves formed in the outer surface of the longitudinal beam body, and the extending direction of the grooves is perpendicular to the length direction of the longitudinal beam.

In some embodiments, the cross-sectional shape of the longitudinal beam body is a polygon, at least one row of the crush ribs is arranged on at least one side surface of the longitudinal beam body, and a plurality of the crush ribs in any row are arranged at intervals along the length direction of the longitudinal beam body.

In some embodiments, the longitudinal beam body is provided with a first side face and a second side face which are arranged oppositely, the first side face is provided with one row of the crumpling ribs, the second side face is provided with a plurality of rows of the crumpling ribs, the plurality of rows of the crumpling ribs are arranged at intervals in the direction perpendicular to the length direction of the longitudinal beam body, and the number of the crumpling ribs in each row is different.

In some embodiments, the longitudinal beam body has an inner cavity, two ends of the longitudinal beam body in the length direction are arranged in an open manner, a first partition plate is arranged inside the longitudinal beam body and perpendicular to the length direction of the longitudinal beam body, the number of the first partition plates is two, the two first partition plates are arranged at intervals along the length direction of the longitudinal beam body, the two first partition plates and the longitudinal beam body define the second energy absorption area, and the elastic member is arranged between the two first partition plates.

In some embodiments, the elastic member is a spring, and two ends of the spring respectively abut against the two first partition plates.

In some embodiments, a second partition plate is further arranged inside the longitudinal beam body, and the second partition plate extends along the length direction of the longitudinal beam body.

In some embodiments, the number of the second partition plates is two, the two second partition plates are arranged at intervals along the vertical direction to divide the first energy absorption area and the second energy absorption area into three sub-chambers which are stacked up and down, and the elastic members are arranged in the three sub-chambers of the second energy absorption area.

In some embodiments, the stringer body further comprises a rigid region, the stringer body has a front end and a rear end along its length, and the first energy absorbing region, the second energy absorbing region and the rigid region are connected in series in the direction from the front end to the rear end.

The vehicle of the second aspect embodiment of the present invention includes the front side member of any of the above embodiments.

Drawings

Fig. 1 is a schematic view of a front side member according to an embodiment of the present invention.

Fig. 2 is a sectional view of a front side member according to an embodiment of the present invention.

Fig. 3 is a right side view of the front side member of the embodiment of the present invention.

Fig. 4 is a left side view of the front side member of the embodiment of the present invention.

Reference numerals:

1. a first energy absorption zone; 11. collapsing ribs; 2. a second energy-absorbing zone; 21. an elastic member; 3. a rigid region; 31. mounting holes; 4. a first separator; 5. a second separator; 6. a first side surface; 7. a second side surface;

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-4, the utility model discloses front longitudinal includes the longeron body, and the longeron body includes at least along the first energy-absorbing district 1 and the second energy-absorbing district 2 that its length direction (the fore-and-aft direction shown in fig. 1) links to each other, and first energy-absorbing district 1 and second energy-absorbing district 2 all are used for absorbing the kinetic energy that the vehicle produced when colliding, and the energy-absorbing mode of first energy-absorbing district 1 and second energy-absorbing district 2 is different.

First energy-absorbing district 1 realizes the energy-absorbing through setting up the muscle 11 that contracts of ulcerate, when the vehicle bumps into, because the existence of the muscle 11 that contracts of ulcerate, first energy-absorbing district 1 can not directly move backward, but absorbs kinetic energy through the mode of contracting backward, can understand that the muscle 11 that contracts of ulcerate is the fold on the longeron body, and when the collision takes place, this realization of longeron is folded along fold conquassation, and length shortens the kinetic energy in order to absorb the collision production.

The second energy absorption area 2 realizes energy absorption by arranging the elastic piece 21, and after the vehicle is collided, the elastic piece 21 deforms to generate buffering force to resist the action of kinetic energy, so that the longitudinal beam body can absorb more kinetic energy.

The number of the first energy absorption area 1 and the second energy absorption area can be one or more, and the arrangement mode of the first energy absorption area 1 and the second energy absorption area 2 can be designed according to different vehicle types, so long as the function of absorbing collision kinetic energy can be achieved.

The utility model discloses front longitudinal is through setting up first energy-absorbing district 1 and second energy-absorbing district 2, adopts the kinetic energy that different energy-absorbing modes furthest absorbed the vehicle and produced because of the collision, avoids unnecessary kinetic energy to continue passenger cabin as far as possible, has guaranteed the integrality in passenger cabin, has improved the factor of safety of vehicle.

In some embodiments, the collapse ribs 11 are strip-shaped grooves formed in the outer surface of the longitudinal beam body, the strip-shaped grooves are made of metal plates, the extending direction (the up-down direction shown in fig. 1) of each groove is perpendicular to the length direction of the longitudinal beam, so that the collapse ribs 11 can play a role similar to a crease or a fold, and after a vehicle collides, the longitudinal beam body can collapse and fold along the fold, and the length is shortened to absorb kinetic energy generated by collision.

Further, the cross section of the longitudinal beam body is polygonal, such as triangular, rectangular, pentagonal, hexagonal, etc., that is, the longitudinal beam body has at least three sides, at least one side of the longitudinal beam body is provided with at least one row of the crush ribs 11, and the plurality of crush ribs 11 in any row are arranged at intervals along the length direction of the longitudinal beam body.

It can be understood that the plurality of the collapse ribs 11 arranged at intervals along the length direction of the longitudinal beam body are arranged in a row, the longitudinal beam body can be provided with the collapse ribs 11 on one side only, the collapse ribs 11 can be arranged on a plurality of sides, and the collapse ribs 11 on any one side can be arranged in one row or multiple rows. The plurality of collapse ribs 11 are arranged at intervals along the length direction of the longitudinal beam body, so that the number of folds on the longitudinal beam body can be increased, the collapse amount of the longitudinal beam body is increased, and more collision kinetic energy can be absorbed by the collapse ribs.

Preferably, the cross section of the longitudinal beam body is rectangular, the longitudinal beam body is provided with a first side surface 6 and a second side surface 7 which are oppositely arranged, the first side surface 6 is provided with a row of collapse ribs 11, the second side surface 7 is provided with a plurality of rows of collapse ribs 11, the plurality of rows of collapse ribs 11 are arranged at intervals along the direction perpendicular to the length direction of the longitudinal beam body, and the number of the collapse ribs 11 in each row is different.

As shown in fig. 3 and 4, the crush ribs 11 on the first side surface 6 are arranged in a row, the number of the crush ribs 11 is four, the number of the crush ribs 11 on the second side surface 7 is three, and the number of the crush ribs 11 in the three rows is two, four, and one from top to bottom. Firstly, the arrangement modes of the collapse ribs 11 on the first side surface 6 and the second side surface 7 are different, the asymmetric design can control the longitudinal beam body to generate uniform collapse, the collapse ribs 11 on the second side surface 7 are arranged irregularly, the effect of controlling the longitudinal beam body to generate uniform collapse can be achieved, and the capacity of the first energy absorption area 1 for absorbing collision kinetic energy is improved. In addition, the number of the collapse ribs 11 of the first side surface 6 is small, the local strength of the first side surface 6 is greater than that of the second side surface 7, and after collision occurs, the longitudinal beam body is easier to bend towards one side of the second side surface 7, so that the purpose of controlling the deformation direction is achieved.

As shown in fig. 2, in some embodiments, the longitudinal beam body has an inner cavity, two ends of the longitudinal beam body in the length direction are open, a first partition plate 4 is disposed inside the longitudinal beam body, the first partition plate 4 is perpendicular to the length direction of the longitudinal beam body, the number of the first partition plates 4 is two, the two first partition plates 4 are spaced apart from each other in the length direction of the longitudinal beam body, the two first partition plates 4 and the longitudinal beam body define the second energy absorption area 2, and the elastic member 21 is disposed between the two first partition plates 4.

Optionally, the elastic member 21 is a spring, two ends of the spring respectively abut against the two first partition plates 4, when the vehicle collides, the longitudinal beam body is delayed in the length direction and is collapsed, collision kinetic energy is transmitted to one of the first partition plates 4, and the first partition plates 4 drive the spring to compress and derive buffering force to resist the action of kinetic energy, so that the longitudinal beam body absorbs more kinetic energy.

As shown in fig. 2, in some embodiments, the inner part of the stringer body is further provided with a second bulkhead 5, and the second bulkhead 5 extends along the length direction of the stringer body. The number of the second partition plates 5 is two, and the two second partition plates 5 are arranged at intervals in the vertical direction, so that the cross section of the front longitudinal beam is in a shape like a Chinese character 'mu', and the longitudinal beam body can provide a more stable crushing form.

The two second partition plates 5 divide the first energy absorption area 1 and the second energy absorption area 2 into three sub-chambers which are stacked up and down, and elastic pieces 21 are arranged in the three sub-chambers of the second energy absorption area 2, so that the kinetic energy absorption capacity of the second energy absorption area 2 can be greatly enhanced.

In some embodiments, the longitudinal beam body further comprises a rigid region 3, the longitudinal beam body has a front end and a rear end in the length direction, and the first energy-absorbing region 1, the second energy-absorbing region 2 and the rigid region 3 are sequentially connected in the direction from the front end to the rear end. So set up, when the vehicle collided, first energy-absorbing district 1 was at first crushed and is absorbed certain kinetic energy, after first energy-absorbing district 1 crushes completely, carries out the energy-absorbing by second energy-absorbing district 2 again, and the effect of dual energy-absorbing is better, and rigid district 3 is used for guaranteeing the structural strength of longeron body, and the intensity of avoiding the longeron body is crossed lowly, can't play the guard action. The rigid region 3 is provided with a plurality of bolt mounting holes 31 through which the side member body can be mounted to the body of the vehicle.

The technical advantages of the vehicle of the second aspect embodiment of the present invention are the same as the technical advantages of the front longitudinal beam of the above-mentioned embodiment, and are not described herein again.

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 indicated based on 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "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 disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims

1. The front longitudinal beam is characterized by comprising a longitudinal beam body, wherein the longitudinal beam body at least comprises a first energy-absorbing area (1) and a second energy-absorbing area (2) which are connected along the length direction of the longitudinal beam body, a crumpling rib (11) is arranged on the first energy-absorbing area (1), and an elastic part (21) capable of absorbing kinetic energy through elastic deformation is arranged in the second energy-absorbing area (2).

2. The front longitudinal beam as claimed in claim 1, wherein the crush ribs (11) are strip-shaped grooves formed in the outer surface of the longitudinal beam body, and the extending direction of the grooves is perpendicular to the longitudinal beam length direction.

3. The front side member according to claim 2, wherein the cross-sectional shape of the side member body is a polygon, and at least one side surface of the side member body is provided with at least one row of the crush ribs (11), and a plurality of the crush ribs (11) in any row are arranged at intervals along the length direction of the side member body.

4. The front longitudinal beam as claimed in claim 3, wherein the longitudinal beam body is provided with a first side surface (6) and a second side surface (7) which are arranged oppositely, the first side surface (6) is provided with one row of the collapse ribs (11), the second side surface (7) is provided with a plurality of rows of the collapse ribs (11), the plurality of rows of the collapse ribs (11) are arranged at intervals along a direction perpendicular to the length direction of the longitudinal beam body, and the number of the collapse ribs (11) in each row is different from each other.

5. The front longitudinal beam as claimed in claim 1, wherein the longitudinal beam body is provided with an inner cavity, two ends of the longitudinal beam body in the length direction are arranged in an open mode, a first partition plate (4) is arranged inside the longitudinal beam body, the first partition plate (4) is perpendicular to the length direction of the longitudinal beam body, the number of the first partition plates (4) is two, the two first partition plates (4) are arranged at intervals along the length direction of the longitudinal beam body, the two first partition plates (4) and the longitudinal beam body define the second energy absorption area (2), and the elastic piece (21) is arranged between the two first partition plates (4).

6. Front longitudinal beam according to claim 5, characterized in that said elastic member (21) is a spring, the two ends of which are respectively abutted against said two first bulkheads (4).

7. Front longitudinal beam according to claim 1, characterized in that a second bulkhead (5) is arranged inside the longitudinal beam body, the second bulkhead (5) extending in the length direction of the longitudinal beam body.

8. Front longitudinal according to claim 7, characterized in that said second partition plates (5) are two, two of said second partition plates (5) are vertically spaced apart to divide said first energy-absorbing region (1) and said second energy-absorbing region (2) into three sub-chambers stacked one above the other, and said elastic members (21) are disposed in each of the three sub-chambers of said second energy-absorbing region (2).

9. Front longitudinal beam according to claim 1, characterized in that the longitudinal beam body further comprises a rigid zone (3), the longitudinal beam body having a front end and a rear end in its length direction, the first energy absorbing zone (1), the second energy absorbing zone (2) and the rigid zone (3) being connected in sequence in the direction of the front end towards the rear end.

10. A vehicle characterized by comprising a front side member according to any one of claims 1 to 9.