CN211223344U

CN211223344U - Novel automobile energy absorption box

Info

Publication number: CN211223344U
Application number: CN201921408486.7U
Authority: CN
Inventors: 程磊; 王传谊; 苟宸章
Original assignee: Tianjin Jinliyan Automotive Engineering & Technology Co ltd
Current assignee: Tianjin Jinliyan Automotive Engineering & Technology Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-08-11
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a novel car energy-absorbing box, including the front longitudinal beam, the inside inner chamber that is provided with of front longitudinal beam, the inner chamber both ends are sealed, inner chamber sliding connection has the piston, the one end of piston is connected with the piston rod, the piston rod passes and sliding seal connects from the one end of inner chamber, the inner chamber is through first intake pipe and second intake pipe and air intake pump intercommunication, be provided with the check valve in the first intake pipe, be provided with the gas holder in the second intake pipe, set up a check valve in the second intake pipe around the gas holder respectively, the one end of inner chamber is through the outlet duct and the air outlet pump intercommunication that are provided with the check valve, air intake pump and air outlet pump are connected with the ECU controller. The utility model has the advantages that (1) the height control is easy to realize; (2) the energy absorption device has excellent nonlinear hard characteristics, can effectively limit the amplitude, avoid resonance, prevent impact and has high energy absorption efficiency; (3) the shock acceleration to which the person is subjected can be reduced.

Description

Novel automobile energy absorption box

Technical Field

The utility model relates to an automobile parts technical field especially relates to a novel car energy-absorbing box.

Background

Crash boxes are a very necessary safety feature on automobiles. The anti-collision beam is rigid and anti-collision, so that the safety of drivers and passengers is prevented from being influenced by the collapse of the vehicle front body, the direct forward intervention of accident stress into a cab is avoided, the vehicle head is cut off, the blocking effect is achieved, and the energy absorption box buffers and absorbs the energy and the stress of collision to reduce the impact force as much as possible.

With the development and progress of the technology, the structure of the energy absorption box is improved so as to improve the energy absorption efficiency. In the prior art, a mode of filling energy-absorbing foam in a cavity inside an energy-absorbing box is generally adopted to improve energy-absorbing efficiency, for example, the invention discloses a technical scheme of a Chinese patent with the application number of 201720492739, and the scheme has the following defects:

(1) the energy absorption efficiency is low, and the injury risk of a driver and passengers is increased when the automobile runs at low speed.

(2) The energy absorption efficiency cannot be manually controlled.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the above-mentioned prior art, the utility model provides a novel car energy-absorbing box.

For realizing the utility model discloses a purpose, the utility model provides a novel car energy-absorbing box, including the front longitudinal beam, the inside inner chamber that is provided with of front longitudinal beam, the inner chamber both ends are sealed, inner chamber sliding connection has the piston, the one end of piston is connected with the piston rod, the piston rod passes and sliding seal connects from the one end of inner chamber, the inner chamber is through first intake pipe and second intake pipe and air inlet pump intercommunication, be provided with the check valve in the first intake pipe, be provided with the gas holder in the second intake pipe, set up a check valve in the second intake pipe around the gas holder respectively, the one end of inner chamber is through the outlet duct and the air outlet pump intercommunication that are provided with the check valve, air inlet pump and air outlet pump are connected with the ECU controller.

Compared with the prior art, the utility model has the advantages that,

(1) easy to implement height control;

(2) the energy absorption device has excellent nonlinear hard characteristics, can effectively limit the amplitude, avoid resonance, prevent impact and has high energy absorption efficiency;

(3) the shock acceleration to which the person is subjected can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present application.

In the figure, 1: front side member, 2: piston rod, 3: piston, 4: inner cavity, 5: first intake pipe, 6: second intake pipe, 7: a gas storage tank, 8: one-way valve, 9: intake pump, 10: ECU controller, 11: air outlet pump, 12: outlet duct, 13: an impact beam.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above 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 application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, the application provides a novel car energy-absorbing box, including the front longitudinal beam, 1 inside inner chamber 4 that is provided with of front longitudinal beam, 4 both ends in inner chamber are sealed, 4 sliding connection in inner chamber have piston 3, the one end of piston 3 is connected with piston rod 2, piston rod 2 passes and sliding seal connects from the one end of inner chamber 4, inner chamber 4 is through first intake pipe 5 and second intake pipe 6 and air intake pump 9 intercommunication, be provided with check valve 8 in the first intake pipe 5, be provided with gas holder 7 in the second intake pipe 6, set up a check valve 8 on the second intake pipe 6 around the gas holder 7 respectively, the one end of inner chamber 4 is through being provided with the outlet duct 12 and the pump 11 intercommunication of giving vent to anger of check valve 8, air intake pump 9 and the pump 11 of giving vent to anger are connected with ECU controller 10.

One end of the piston rod is connected with the anti-collision beam.

The application has the operation principle that:

1) when the automobile runs safely, the first air inlet pipe 5 and the air outlet pipe 12 are closed, the inner cavity 4 is inflated by the air storage tank 7, a compressed air column is formed, and the rigidity of the inner cavity 4 is guaranteed.

2) When the automobile is collided, the inner cavity 4 is exhausted from the air outlet pipe to buffer the energy generated in collision.

3) Along with the increase of the vibration load capacity, the volume of the inner cavity 4 is reduced, the air outlet pipe 12 is closed, the inner cavity 4 is filled with air from the first air inlet pipe 5, the rigidity of the inner cavity 4 is increased, the effective bearing area of an air column of the inner cavity 4 is increased, and the bearing capacity of the inner cavity 4 is increased at the moment.

4) When the vibration load capacity is reduced, the volume of the inner cavity 4 is increased, the rigidity of the inner cavity 4 is reduced, the effective bearing area of the air column of the inner cavity 4 is reduced, and the bearing capacity of the inner cavity 4 is reduced at the moment. Therefore, the air spring generates stable flexible transmission and efficient control of amplitude and vibration load in the effective stroke, the volume of the inner cavity 4 and the bearing capacity along with the increment and the reduction of the vibration load.

5) The rigidity and the bearing capacity of the inner cavity 4 can be adjusted by increasing and decreasing the air charging quantity, and an auxiliary air chamber can be additionally arranged to realize automatic control and adjustment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel car energy-absorbing box, characterized by: comprises a front longitudinal beam, an inner cavity (4) is arranged in the front longitudinal beam (1), two ends of the inner cavity (4) are sealed, the inner cavity (4) is connected with a piston (3) in a sliding way, one end of the piston (3) is connected with a piston rod (2), the piston rod (2) passes through one end of the inner cavity (4) and is connected with the inner cavity in a sliding and sealing way, the inner cavity (4) is communicated with an air inlet pump (9) through a first air inlet pipe (5) and a second air inlet pipe (6), the first air inlet pipe (5) is provided with a one-way valve (8), the second air inlet pipe (6) is provided with an air storage tank (7), a one-way valve (8) is respectively arranged on the second air inlet pipe (6) at the front and the rear of the air storage tank (7), one end of the inner cavity (4) is communicated with an air outlet pump (11) through an air outlet pipe (12) provided with a one-way valve (8), the air inlet pump (9) and the air outlet pump (11) are connected with an ECU controller (10).