CN109591749B - Energy absorption device and vehicle - Google Patents
Energy absorption device and vehicle Download PDFInfo
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- CN109591749B CN109591749B CN201910060378.3A CN201910060378A CN109591749B CN 109591749 B CN109591749 B CN 109591749B CN 201910060378 A CN201910060378 A CN 201910060378A CN 109591749 B CN109591749 B CN 109591749B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
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Abstract
The invention relates to the technical field of vehicle safety, in particular to an energy absorption device and a vehicle, which comprise a first supporting plate and a second supporting plate, wherein at least two energy absorption plates are arranged between the first supporting plate and the second supporting plate, and two ends of each energy absorption plate are respectively connected with the first supporting plate and the second supporting plate; defining a direction from the first support plate to the second support plate as a first direction; at least one guide bend is arranged on the energy-absorbing plate, and when the first supporting plate moves towards the second supporting plate along the first direction, the energy-absorbing plate can bend at the guide bend. When the automobile has a collision accident, the energy-absorbing plate can be bent at the guide bending position, due to the guide effect of the self-guide bending structure, the energy-absorbing plate orderly collapses one by one from the guide bending end, and the energy generated by collision is absorbed through collapse deformation, so that active energy absorption is realized, and the injury to the legs of passengers is greatly reduced.
Description
Technical Field
The invention relates to the technical field of vehicle safety, in particular to an energy absorption device and a vehicle.
Background
With the rapid development of economy, automobiles become the main means of transportation for people to go out. The promotion of car use amount makes the collision accident take place frequently, because vehicle space restriction, when the car bumps and leads to the preceding part of car to warp, produces very big injury to passenger's thigh, shank and foot easily. In the event of a frontal collision of a vehicle, the incidence of leg injuries is only behind the head, and the lower limb injuries are not fatal and are often overlooked by people.
The existing leg energy absorption device is provided with a first connecting piece and a second connecting piece between a first footrest and a second footrest, and the first connecting piece and the second connecting piece are provided with a crumpling energy absorption mechanism, so that the first connecting piece can be movably arranged in the second connecting piece. When the front collision happens, the second footrest receives the front wall of the vehicle to transmit impact, the upper part of the first footrest is trampled by the left foot of the driver, and the first footrest moves downwards at the moment, so that the space between the foot and the first footrest is increased, the impact on the foot of the driver is reduced, and the injury on the lower leg of the driver is reduced.
In the existing leg energy absorption device, a first connecting piece and a second connecting piece are connected through a nylon bolt, when front high-speed collision occurs, the nylon bolt is cut off quickly, the first connecting piece moves along the axis of the second connecting piece, and no energy absorption mechanism can absorb the force generated by the high-speed collision.
Disclosure of Invention
The invention aims to provide an energy absorption device and a vehicle, which can absorb energy generated by collision through crumple deformation so as to realize active energy absorption.
In a first aspect, an embodiment of the present application provides an energy absorbing device, including a first support plate and a second support plate, where at least two energy absorbing plates are disposed between the first support plate and the second support plate, and two ends of each energy absorbing plate are connected to the first support plate and the second support plate respectively;
defining a direction from the first support plate to the second support plate as a first direction;
the energy absorption plate is provided with at least one guide bend, and when the first supporting plate moves towards the second supporting plate along the first direction, the energy absorption plate can bend at the guide bend.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein along the first direction, a plurality of guide bends are disposed on the energy absorbing plate, and an extending direction of each guide bend is parallel to a plane where the first support plate is located;
the bending angles of the guiding bends are equal, and the bending directions of two adjacent guiding bends are opposite.
With reference to the first possible implementation manner or the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein along the first direction, the compressive properties of the guide bends are sequentially increased;
along the first direction, a through hole or a groove is formed in the middle of the guide bending position of the energy absorption plate, and the area of the through hole or the groove is reduced in sequence;
the through holes or the grooves are in strip shapes, oval shapes or fence shapes.
With reference to the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner of the first aspect, the present application provides a fourth possible implementation manner of the first aspect, wherein a direction parallel to the plate surface of the energy absorbing plate and perpendicular to the first direction is defined as a second direction;
the lengths of the energy absorbing plates in the second direction are sequentially increased along the first direction;
the projection of the energy absorption plate on the projection surface is a right trapezoid, and the projection surface is perpendicular to the first supporting plate and parallel to the second direction.
With reference to the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, or the fourth possible implementation manner of the first aspect, an example of the present application provides a fifth possible implementation manner of the first aspect, wherein angles of the guide bends are sequentially increased along the first direction.
In a second aspect, embodiments of the present application further provide a vehicle, including a plurality of energy absorption devices as described above, where a first support plate of the energy absorption device is adjacent to a passenger, and a second support plate of the energy absorption device is adjacent to a vehicle floor.
The embodiment of the application provides an energy-absorbing device and vehicle, the footrest among the prior art increases the space between foot and the first footrest through cutting off the nylon plug, and then reduce and compare driver's impact to the foot, the energy-absorbing device of this application sets up at least one direction on the energy-absorbing plate and bends, when the car bumps the accident, the energy-absorbing plate can be in the direction department of bending and buckle, because the guide effect of self direction bending structure, the one end of bending of energy-absorbing plate from the direction is orderly the ulcerate one by one contracts, through the energy that the deformation of ulcerate contracts and absorbs because the collision produces, realize initiative energy-absorbing, thereby reduce the injury to passenger's shank greatly.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a first energy absorber device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a first energy absorber device according to an embodiment of the present disclosure in the X-direction;
FIG. 3 is a schematic view of a first energy absorber device according to an embodiment of the present disclosure in the Y-direction;
FIG. 4 is a schematic view of a second energy absorber device according to an embodiment of the present disclosure in the X-direction;
FIG. 5 is a schematic view of a third energy absorber device provided in the embodiments of the present application in the Y-direction.
Icon: 1-an energy absorbing device; 11-a first support plate; 12-a second support plate; 13-an energy absorbing plate; 131-first guiding bending; 132-second guide bend; 133-third guiding bending; 134-through hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "in", "out", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In current shank energy-absorbing device, when taking place the high-speed collision in front, the nylon bolt cuts off fast, makes the connecting piece take place to remove, and then realizes the removal of footrest, finally increases the space between foot and the footrest, reduces the injury to driver's shank. However, the leg energy absorber is effective on the premise that the vehicle is subjected to a large enough impact force to cut the nylon latch. In addition, when a collision occurs, the impact on the driver's feet is reduced only by increasing the space between the feet and the footrest, and the force generated by the high-speed collision is not fundamentally solved.
Based on this, the embodiment of the present application provides an energy absorbing device, which is described below by way of specific embodiments.
It should be noted that, because the content of the embodiments of the present application relates to definitions of some directions and distances, for the sake of brevity, the definitions are defined by letters, and the contents are as follows:
z-first direction: a direction from the first support plate to the second support plate;
y-second direction: a direction parallel to the plate surface of the energy absorbing plate and perpendicular to the first direction Z;
x: a direction perpendicular to the plane of projection.
The first embodiment is as follows:
as shown in fig. 1 to 3, fig. 1 is a schematic structural diagram of a first energy absorber provided in an embodiment of the present application; FIG. 2 is a schematic view of a first energy absorber device according to an embodiment of the present disclosure in the X-direction; FIG. 3 is a schematic view of a first energy absorber device according to an embodiment of the present disclosure in the Y-direction.
An energy absorption device 1 comprises a first support plate 11 and a second support plate 12, wherein at least two energy absorption plates 13 are arranged between the first support plate 11 and the second support plate 12, and two ends of each energy absorption plate 13 are respectively connected with the first support plate 11 and the second support plate 12; at least one guide bend is arranged on the energy-absorbing plate 13, and when the first support plate 11 moves towards the second support plate 12 along the first direction Z, the energy-absorbing plate 13 can be bent at the guide bend.
For best results, the energy absorbing plate 13 is provided with a plurality of guide folds along the first direction Z, and the extension direction of each guide fold is parallel to the plane of the first support plate 11. In the embodiment of the application, a certain vehicle is selected, two energy-absorbing plates 13 are adopted through practical tests, and 3 guide bends are arranged on the energy-absorbing plates 13, so that the energy-absorbing device 1 can achieve an optimal deformation mode in the state; further, the 3 guide bends are defined as a first guide bend 131, a second guide bend 132, and a third guide bend 133, respectively; in addition, the bending angles of the guiding bends are equal, and the bending directions of two adjacent guiding bends are opposite.
As mentioned above, when the automobile has a collision accident, the energy-absorbing plate 13 can be bent at the guiding bending part, due to the guiding effect of the self-guiding bending structure, the energy-absorbing plate 13 orderly collapses one by one from the guiding bending end, the impact from the collision is lightened through collapsing deformation, the energy generated by the collision is absorbed, the active energy absorption is realized, the problem is fundamentally solved, and the damage to the legs of the passenger is greatly reduced, the energy-absorbing device 1 is simple in structure, can be produced and manufactured on a large scale, and is lower in production cost.
It should be added that the first support plate 11 and the second support plate 12 only perform a force transmission function during a collision, and the guide bend on the energy absorbing plate 13 is the main structure for absorbing the collision force.
In addition, the energy absorption device 1 provided by the embodiment of the application considers the factors of different body proportions of passengers, and the energy absorption device 1 applied to the vehicle is suitable for different crowds through the design of guiding and bending, so that certain compatibility is achieved. When the passenger is a small-sized human body, the energy generated by the passenger is small, and the first guide bend 131 is firstly deformed by collapsing to absorb energy. When the passenger is a medium-sized human body, the energy generated by the passenger is larger than that generated by a small-sized human body, and on the basis that the first guide bend 131 is deformed by collapsing, the second guide bend 132 is deformed by collapsing to absorb energy; when the passenger is a large-sized human body, the passenger generates large energy, and the third guide bend 133 is deformed to be collapsed to absorb energy on the basis of the collapse deformation of the first guide bend 131 and the second guide bend 132; therefore, the energy absorption device 1 can protect people with different stature proportions and has compatibility.
Further, the pressure resistance of the guide bends increases in order along the first direction Z.
It is noted that the pressure resistance of the guide bend needs to be increased in order according to the size of the occupant and the degree of deformation of the guide bend during the collision. In the embodiment of the present application, there are 3 guiding bends, which correspond to three different body proportions of human body, respectively, the first guiding bend 131 is easy to deform, and the third guiding bend 133 is difficult to deform compared with the first guiding bend 131. When the impact force is so great that the third guide bend 133 is required to function, the compressive property of the third guide bend 133 needs to be great enough to withstand the impact force. Similarly, as the size and weight of the passenger increase, the compressive strength of the third guide bend 133 needs to be maximized.
Further, there are many embodiments to achieve the effect of increasing the pressure resistance of the pilot bend in order, and the present invention is exemplified by three embodiments, specifically, as follows.
Preferably, along the first direction Z, a through hole 134 or a groove is formed in the middle of the bend of the energy absorbing plate 13, and the area of the through hole 134 or the groove is sequentially reduced.
As mentioned above, the through hole 134 or the groove is formed in the middle of the guided bent portion of the energy absorbing plate 13, and the main function is to weaken the impact force, in the embodiment of the present application, the through hole 134 is formed in the middle of the guided bent portion of the energy absorbing plate 13, the shape of the through hole 134 may be changed according to the development of a specific vehicle type, and specifically, the shape of the through hole 134 may be a strip shape, an oval shape or a fence shape.
Further, the area of the through-hole 134 is sequentially reduced. In the embodiment of the present application, the size of the through hole 134 at the first guide bend 131 is larger than that of the through hole 134 at the second guide bend 132, so that the first guide bend 131 is deformed to collapse before the second guide bend 132 when being impacted by collision; similarly, the size of the through hole 134 at the second guide bend 132 is larger than the size of the through hole 134 at the third guide bend 133, so that the second guide bend 132 is deformed before the third guide bend 133 is collapsed when the collision impact is applied. The first guide bend 131, the second guide bend 132, and the third guide bend 133 absorb energy by the arrangement of the deformation sections of the pre-bending regions corresponding to the through holes 134 having different sizes, and the deformation of the energy absorbing plate 13 in the first direction Z can be controlled in an efficient and simple manner by the arrangement of the pre-bending regions.
It should be added that the through hole 134 is arranged in the middle of the guiding bending position of the energy absorbing plate 13, so that the weight of the components of the energy absorbing device 1 with reliable function is reduced, the material is saved, and the cost is also saved. Similarly, the same effect can be achieved by arranging the groove in the middle of the guide bending position of the energy absorption plate 13.
Example two:
as shown in FIG. 4, FIG. 4 is a schematic view of a second energy absorber device according to an embodiment of the present application in the X-direction.
Further, the length of the energy absorbing plate 13 in the second direction Y increases in order along the first direction Z.
Specifically, the projection of the energy absorbing plate 13 on the projection plane is a right trapezoid, and the projection plane is perpendicular to the first support plate 11 and parallel to the second direction Y.
As described above, as the length of the energy absorbing plate 13 in the second direction Y is sequentially increased, the compression resistance is gradually increased, so that when an impact is applied, the first guide bend 131 is easily deformed due to the short length of the first guide bend 131 in the second direction Y, thereby absorbing energy generated by the impact and achieving active energy absorption; since the third guide bend 133 has a long length in the second direction Y, the third guide bend 133 has a large pressure resistance, and thus can withstand a large impact. Because the projection of the energy absorption plate 13 on the projection surface is a right trapezoid, the inclined side of the right trapezoid faces the direction in which the vehicle is easily impacted, so that the stress area is increased, the crumpling deformation is uniform, and the energy absorption is better realized.
Example three:
FIG. 5 is a schematic view from a second perspective of a third energy absorber device according to an embodiment of the present application, as shown in FIG. 5.
Specifically, along the first direction Z, the angles of the guide bending parts sequentially increase.
As described above, the angles of the guiding bends are sequentially increased along the first direction Z, and the angle of the first guiding bend 131 is smaller, so that the first guiding bend 131 is easily deformed when being impacted, thereby absorbing energy generated by the impact and enabling the energy absorption effect to be the best; the third guiding bend 133 has a larger angle and a larger pressure resistance, so that the third guiding bend can bear a larger impact.
Based on the same technical concept, the invention also provides a vehicle, and the following embodiments can be specifically referred.
A vehicle includes a plurality of energy absorbing devices 1, a first support plate 11 of the energy absorbing device 1 is adjacent to a passenger, and a second support plate 12 of the energy absorbing device 1 is adjacent to a vehicle floor.
As described above, arranging the energy absorbing device 1 under the driver's left and passenger's side feet of the vehicle, the energy absorbing device 1 can be fixed by a blanket on the vehicle floor, thereby giving cushioning to the passenger's legs during a vehicle collision and providing support or protection to the passenger's legs when they move forward due to the collision.
It is to be supplemented that, the energy-absorbing device 1 in this application makes it have different buffering energy-absorbing characteristics through changing parameters such as the cross-sectional shape, size, wall thickness, material characteristics and the size of through-hole 134 or recess of energy-absorbing board to satisfy the buffering energy-absorbing characteristic requirement of different human bodies, specific case, it is not repeated here just to omit.
Since the energy absorption device 1 has the technical effects described above, a vehicle having the energy absorption device 1 also has the same technical effects. It should be noted that, in the embodiment of the present application, the energy absorbing device 1 is applied to a vehicle as an example, but not limited thereto, and details thereof are not repeated herein.
In addition, each structural feature in the embodiments of the present application may be integrated into one energy absorbing device 1, or each structural feature may be separately present in one energy absorbing device 1, or two or more structural features may be integrated into one energy absorbing device 1.
Compared with the prior art, the invention has the following advantages:
the invention provides an energy absorption device and a vehicle, wherein at least one guide bending is arranged on an energy absorption plate 13, and a through hole 134 is formed. When an automobile collides, the energy-absorbing plate 13 can be bent at the guiding bent part, due to the guiding effect of the self-guiding bent structure, the energy-absorbing plate 13 orderly collapses one by one from one end of the guiding bent part, the impact from the collision is lightened through collapsing deformation, the energy generated by the collision is absorbed, the active energy absorption is realized, the problem is fundamentally solved, and the injury to the legs of passengers is greatly reduced; further, the through holes 134 on the energy absorbing plate 13 play a role in weakening the impact force; the energy absorption device 1 is simple in structure, capable of being produced and manufactured in a large scale and low in production cost.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art 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 invention.
Claims (8)
1. An energy absorption device is characterized by comprising a first supporting plate and a second supporting plate, wherein at least two energy absorption plates are arranged between the first supporting plate and the second supporting plate, and two ends of each energy absorption plate are respectively connected with the first supporting plate and the second supporting plate;
defining: a direction from the first support plate to the second support plate is a first direction;
the energy absorption plate is provided with at least one guide bend, and when the first support plate moves to the second support plate along the first direction, the energy absorption plate can bend at the guide bend;
along the first direction, the compressive performance of the guide bends is increased in sequence;
and a through hole or a groove is formed in the middle of the guide bending part of the energy absorption plate, and the area of the through hole or the groove is reduced in sequence.
2. An energy absorber according to claim 1 wherein a plurality of said guide bends are provided in said energy absorber plate along said first direction, each said guide bend extending in a direction parallel to a plane of said first support plate.
3. An energy absorber according to claim 2 wherein the bending angles of each of said guide bends are equal and the bending directions of adjacent guide bends are opposite.
4. Energy absorbing device according to claim 1, characterized in that: the direction which is parallel to the plate surface of the energy absorption plate and is vertical to the first direction is a second direction;
the lengths of the energy absorbing plates in the second direction increase sequentially along the first direction.
5. An energy absorber according to claim 1 wherein the angle of said guide folds increases in sequence along said first direction.
6. An energy absorber according to claim 1 wherein said through holes or recesses are in the shape of strips, ovals or fences.
7. The energy absorber according to claim 4, wherein the projection of the energy absorbing plate on a projection plane is a right trapezoid, the projection plane being perpendicular to the first support plate and parallel to the second direction.
8. A vehicle comprising a plurality of energy absorbing devices according to any one of claims 1 to 7, wherein a first support panel of the energy absorbing devices is adjacent a passenger and a second support panel of the energy absorbing devices is adjacent a floor of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060378.3A CN109591749B (en) | 2019-01-22 | 2019-01-22 | Energy absorption device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060378.3A CN109591749B (en) | 2019-01-22 | 2019-01-22 | Energy absorption device and vehicle |
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| Publication Number | Publication Date |
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| CN109591749A CN109591749A (en) | 2019-04-09 |
| CN109591749B true CN109591749B (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910060378.3A Active CN109591749B (en) | 2019-01-22 | 2019-01-22 | Energy absorption device and vehicle |
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| CN (1) | CN109591749B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677920B (en) * | 2020-12-16 | 2022-01-11 | 南京理工大学 | Anti-explosion passenger leg protection device for military vehicle |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3808163B2 (en) * | 1997-04-28 | 2006-08-09 | 本田技研工業株式会社 | Automotive footrest |
| JP3695267B2 (en) * | 1999-12-08 | 2005-09-14 | 日産自動車株式会社 | Vehicle footrest |
| KR20050049054A (en) * | 2003-11-21 | 2005-05-25 | 현대자동차주식회사 | Foot rest for automobile |
| JP2006056352A (en) * | 2004-08-19 | 2006-03-02 | Nissan Motor Co Ltd | Shock absorbing member |
| CN103909892B (en) * | 2013-07-26 | 2016-02-03 | 浙江吉利汽车研究院有限公司 | Toe board |
| CN204383373U (en) * | 2014-12-12 | 2015-06-10 | 浙江吉利汽车研究院有限公司 | A kind of energy absorbent block and there is the front bumper endergonic structure of this energy absorbent block |
| CN204871245U (en) * | 2015-08-26 | 2015-12-16 | 长城汽车股份有限公司 | Car footrest assembly and car |
| CN205930415U (en) * | 2016-07-14 | 2017-02-08 | 北京汽车股份有限公司 | A vehicle that is used for board and have board of should stopping for a rest on a walking tour of stopping for a rest on a walking tour of vehicle |
| CN108312935B (en) * | 2018-03-26 | 2020-07-07 | 吉利汽车研究院（宁波）有限公司 | Energy-absorbing footrest and vehicle |
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