CN115697777A - Collision energy-absorbing box - Google Patents
Collision energy-absorbing box Download PDFInfo
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- CN115697777A CN115697777A CN202180040178.7A CN202180040178A CN115697777A CN 115697777 A CN115697777 A CN 115697777A CN 202180040178 A CN202180040178 A CN 202180040178A CN 115697777 A CN115697777 A CN 115697777A
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- ring
- damping mechanism
- damping
- damping element
- force
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Abstract
The invention relates to a damping mechanism (10) for absorbing kinetic energy in the event of a collision, the damping mechanism (10) having at least one first part (21) and at least one second part (23) that can be connected to a vehicle, and at least one body (20) located between the first part (21) and the second part (23). The improvement of the damping mechanism (10) of the invention is that: at least one damping element (30) is arranged between the body (20) and the first part (21) and is capable of absorbing energy up to a predetermined force threshold, at least one ring (31) is arranged between the body (20) and the second part (23), at least one protruding shape (24) is arranged in correspondence of the ring, either the ring (31) or the protruding shape (24) being configured to deform in case a force exceeding the predetermined force threshold is applied.
Description
Technical Field
The invention relates to a damping mechanism for absorbing kinetic energy in the event of a crash, having at least one first part and at least one second part which can be connected to a vehicle, and at least one body located between the first part and the first part.
Background
In automobiles, safety systems are classified into two types, active systems and passive systems. Active safety systems attempt to avoid accidents. ABS, ESP, etc. systems may be used as examples of active safety systems. Passive safety systems minimize the adverse impact on occupants of a vehicle after an accident has occurred. Airbags, seat belts, etc. may be used as examples of passive safety systems. Crash boxes are one type of passive safety system.
A crash box is a device that absorbs kinetic energy generated by a collision. Thus, the crash box helps prevent or reduce injury to the occupant. In addition, the crash box reduces maintenance costs, especially in low speed vehicle crashes.
The existing crash box adopts a welding method to form a steel plate into a specific form. This production process is long and costly.
Therefore, in view of the above problems, there is a need for improvement in the related art.
Disclosure of Invention
The present invention relates to a damping mechanism for eliminating the above-mentioned disadvantages and bringing new advantages to the related art.
It is an object of the present invention to provide a damping mechanism that is actuated in a stepped manner.
It is another object of the present invention to provide a damping mechanism that does not require complete replacement in the event of a low speed crash.
In order to achieve the above objects and those that will be derived from the detailed description that follows, the present invention is a damping mechanism for absorbing kinetic energy in the event of a collision, having at least one first part and at least one second part that can be connected to a vehicle, and at least one body located between the first part and the second part. Accordingly, an improvement of the invention is at least one damping element located between the body and the first part, the at least one damping element being capable of absorbing energy up to a predetermined force threshold,
at least one ring is arranged between the body and the second part, at least one protruding shape is arranged at the corresponding position of the ring,
either the ring or the protrusion shape is configured to deform upon application of a force exceeding the predetermined force threshold. Thus, two-stage damping is provided in the event of a crash where the velocity exceeds a predetermined force threshold.
In a possible embodiment of the invention, the ring is configured to be deformed by the protrusion shape if the threshold force threshold is exceeded. Thus, higher energy is absorbed by the ring with high yield stress, and the deformed ring can be easily replaced.
In another possible embodiment of the invention, either one of the first and second components is connected to the chassis of the vehicle and the other is connected to the bumper. Therefore, the reaction force of the bumper can prevent damage to the chassis, and thus, the interior components of the vehicle.
In another possible embodiment of the invention, the ring is positioned in one piece with the body. Thus, the protrusion shape can move forward in the ring and the body.
In another possible embodiment of the invention, said protruding shape is provided on said second part. Thus, the force from the bumper is absorbed.
In another possible embodiment of the invention, the protrusion shape extends substantially in a conical manner within the ring. Thus, the protruding shape provides actuation by passing through the ring and forcing it open.
In another possible embodiment of the invention, the projection shape is configured to force the ring to change shape radially. Thus, high energy absorption is provided by the ring having a higher plastic deformation initiation force.
In another possible embodiment of the invention, the deformation starting force of the damping element is set lower than the deformation starting force of the other component. Thus, at the moment of impact the damping element is first deformed and absorbs kinetic energy.
In another possible embodiment of the invention, the body is configured to comprise at least one discharge opening substantially at the side of the body connected to the damping element. Thus, as the volume of the damping element decreases during deformation, air provided in the damping element is expelled.
Drawings
In fig. 1, a representative cross-sectional view of the damping mechanism of the present invention is given.
In fig. 2, a representative cross-sectional view of a first deformation step of the damping mechanism of the present invention is given.
In fig. 3, a representative cross-sectional view of a second deformation step of the damping mechanism of the present invention is given.
Detailed Description
In the specific embodiment, the damper mechanism (10) is illustrated merely to make the subject matter more comprehensible, without any limiting effect on the subject matter.
In fig. 1, a representative cross-sectional view of a damping mechanism (10) is presented. Accordingly, the damping mechanism (10) is mainly used in a vehicle, and is plastically deformed and absorbs energy in the event of an accident. Plastic deformation is the name given to a permanent change in shape of a material under load. The damping mechanism (10) is located on the vehicle and absorbs the kinetic energy at the moment of an accident by plastic deformation. The damping mechanism (10) comprises at least one first portion (21) and at least one second portion (23). The first portion (21) and the second portion (23) are each a connecting bracket that provides for positioning of the damping mechanism (10) on the vehicle. Either one of the first portion (21) and the second portion (23) is connected to a chassis of the vehicle, and the other is connected to a bumper. In one possible embodiment of the invention, the first portion (21) is substantially connected to the chassis of the vehicle and the second portion (23) is connected to the bumper of the vehicle. The first part (21) is provided with at least one first connection hole (22). The first connection hole (22) allows the first portion (21) to be detachably connected. The second portion (23) is provided with at least one second connection hole (25). The second connection hole (25) allows the second portion (23) to be detachably connected.
In fig. 2, a representative cross-sectional view of a first deformation step (i) of the damping mechanism (10) is given. Accordingly, the damping mechanism (10) comprises at least one body (20) located between a first portion (21) and a second portion (23). The body (20) is essentially a sleeve-like structure provided in a cylindrical form. The damping mechanism (10) comprises at least one damping element (30) arranged between the body (20) and the first part (21). The damping element (30) is generally a structure for providing at least partial damping absorption of kinetic energy at the moment of impact. The damping element (30) is substantially an aluminium tube. Due to the action of the forces exerted thereon, the damping element (30) folds onto its own wall and the energy of the impact is damped. Naturally, the number of folds to occur is proportional to the impact strength. The body (20) is generally configured to include at least one discharge opening (26) on a side thereof connected to the damping element (30). The discharge opening (26) provides for the discharge of air present inside when the volume of the damping element (30) decreases during the deformation of the damping element (30). As the damping element (30) deforms, a first deformation step (i) occurs. Since the deformation starting force of the damping element (30) is lower than that of the other portions, the damping element (30) is deformed to damp the first kinetic energy generated due to the collision.
In fig. 3, a representative cross-sectional view of a second deformation step (ii) of the damping mechanism (10) is given. Accordingly, at least one ring (31) is located between the body (20) and the second portion (23). The ring (31) is an energy absorber so as to be forcibly deformed in a substantially radial direction. The ring (31) and the body (20) are positioned in an integral form. The second portion (23) comprises at least one protruding shape (24) arranged in correspondence of the ring (31). The projection shape (24) has a substantially tapered structure extending and having a gradually narrowing diameter. The protruding shape (24) is removably connected to the second portion (23). The protruding shapes (24) interact so as to rest at least partially on the ring (31). In the event of a collision, energy is absorbed by one of the projection shapes (24) and the ring (31) deforms. In one possible embodiment of the invention, the ring (31) is forced to deform radially when the protrusion shape (24) is actuated. In another possible embodiment of the invention, the protruding shape (24) forces the ring (31) to deform by protruding into the ring (31), narrowing the cross section of the protruding shape (24), and forces the ring (31) to deform by advancing during collapse. The second deformation step (ii) occurs as the damping element (30) deforms and subsequently the ring (31) deforms.
According to an exemplary operating scenario of the invention, the damping mechanism (10) is positioned on the vehicle by a first portion (21) connected from one side to the chassis and by a second portion (23) connected from the other side to the bumper. The force occurring as a result of the collision and reaching the predetermined force threshold is damped by deformation of the damping element (30). The kinetic energy resulting from the impact exceeding a determined force is absorbed by the deformation of the ring (31) as a result of the force applied to the ring (31), the ring (31) having a high initial force of deformation, radially expanding the ring (31) by the projecting shape (24).
With all of these embodiments, in the event of a collision at low vehicle speeds, only the damping element (30) deforms, and therefore the damping mechanism (10) can be reused after replacement of the damping element (30). The stepped configuration prevents damage in high speed accidents due to the deformation of the ring (31) and the damping element (30). Aluminum tubes, which are readily found in the prior art, are used as the damping element (30). The ring (31) is made of a stainless steel material and is configured to be easily deformed after being deformed. Due to this, the production time and additional processes required for production are minimized.
The scope of the invention is set forth in the appended claims, and is not limited to the illustrative disclosure of the above detailed description. This is because it is obvious to a person skilled in the art that similar embodiments can be produced in the light of the above disclosure without departing from the main principles of the invention.
Reference numerals
10. Damping mechanism
20. Body
21 first part
22 first connection hole
23. The second part
24. Projecting shape
25. Second connecting hole
26. Discharge opening
30 damping element
31 Ring
(i) First deformation step
(ii) Second deformation step
Claims (9)
1. A damping mechanism (10) for absorbing kinetic energy in the event of a collision, having at least one first portion (21) and at least one second portion (23) connectable to a vehicle, and at least one body (20) located between the first portion (21) and the second portion (23), wherein at least one damping element (30) is located between the body (20) and the first portion (21), the at least one damping element (30) being capable of absorbing energy up to a predetermined force threshold,
at least one ring (31) is arranged between the body (20) and the second portion (23), the ring being provided with at least one protruding shape (24) in correspondence therewith,
either the ring (31) or the protruding shape (24) is configured to deform upon application of a force exceeding the predetermined force threshold.
2. The damping mechanism (10) according to claim 1, wherein the ring (31) is configured to be deformed by the protrusion shape (24) if the threshold force threshold is exceeded.
3. A damping mechanism (10) according to claim 1, wherein either one of the first member (21) and the second member (23) is connected to a chassis of the vehicle and the other is connected to a bumper.
4. The damping mechanism (10) according to claim 1, wherein the ring (31) is positioned in an integral manner with the body (20).
5. The damping mechanism (10) according to claim 1, wherein the protruding shape (24) is provided on the second portion (23).
6. The damping mechanism (10) according to claim 1, wherein the protruding shape (24) extends substantially in a conical manner within the ring (31).
7. The damping mechanism (10) according to claim 1, wherein the protrusion shape (24) is configured to force the ring (31) to change shape radially.
8. The damping mechanism (10) according to claim 1, wherein a deformation starting force of the damping element (30) is set lower than that of other components.
9. The damping mechanism (10) of claim 1, wherein the body (20) is configured to include at least one discharge opening (26), the discharge opening (26) being substantially on a side of the body connected to the damping element (30).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2021/005789A TR2021005789A1 (en) | 2021-03-31 | 2021-03-31 | A CRASH BOX |
| TR2021/005789 | 2021-03-31 | ||
| PCT/TR2021/050479 WO2022211753A1 (en) | 2021-03-31 | 2021-05-24 | A crashbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115697777A true CN115697777A (en) | 2023-02-03 |
Family
ID=85060488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180040178.7A Pending CN115697777A (en) | 2021-03-31 | 2021-05-24 | Collision energy-absorbing box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115697777A (en) |
| TR (1) | TR2021005789A1 (en) |
-
2021
- 2021-03-31 TR TR2021/005789A patent/TR2021005789A1/en unknown
- 2021-05-24 CN CN202180040178.7A patent/CN115697777A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TR2021005789A1 (en) | 2022-05-23 |
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