CN113442865B

CN113442865B - Electric automobile escape system

Info

Publication number: CN113442865B
Application number: CN202110910093.1A
Authority: CN
Inventors: 吴蕾菲; 王恒; 冉志; 姚学森; 季孟渊
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-04-26
Anticipated expiration: 2041-08-09
Also published as: CN113442865A

Abstract

The invention discloses an electric automobile escape system which comprises a seat, a B column and a battery pack, wherein the B column is arranged on a doorsill of an automobile body, a framework shaft is arranged on one side, facing the inside of the automobile body, of the B column, and the seat is arranged on the framework shaft. The battery pack is arranged below the seat, a plurality of hydraulic cylinders are arranged inside the doorsill, piston pins which correspond to the hydraulic cylinders in a one-to-one mode are arranged on two sides of the battery pack, and the piston pins penetrate through the battery pack and the doorsill upwards and are inserted into the hydraulic cylinders. The battery pack is characterized in that one side, facing the seat, of the battery pack is provided with a plurality of protruding blocks, and the skeleton shaft is provided with cams with the same number as the protruding blocks. The electric automobile escape system disclosed by the invention is mainly used for a new energy automobile provided with a battery pack, so that the electric automobile escape system can be used for escape when the automobile door cannot be opened due to side collision of the automobile, and can effectively and quickly help crews to escape, thereby ensuring the personal safety.

Description

Electric automobile escape system

Technical Field

The invention relates to the field of electric automobiles, in particular to an electric automobile escape system.

Background

With the development of society, people pay more and more attention to the safety problem of automobiles, and are required to bear strict direct impact and side impact, so that the safety of drivers and passengers is ensured. In the design and production of automobiles, people should not only meet the regulations, but also be lean and refined, the automobile accident cases in the market are continuously researched, and the collision test working conditions are continuously enriched by sorting and screening the big data, so that the safety of automobile consumers is ensured to the maximum extent.

For the side free fall test, the characteristic feature is that the A, B, C pillar on the main driving side of the automobile and the front and rear doors are almost simultaneously grounded and deformed, and the doors on the main driving side are contacted with the ground, so that the automobile has great difficulty in both active escape of passengers in the automobile and rescue of people outside the automobile; and for the electric automobile, the battery in collision is also very easy to fire suddenly, thereby causing secondary accidents.

Therefore, how to provide an electric vehicle escape system which is helpful to quickly and effectively escape when the main driving side door is collided and can not be opened becomes a technical problem which needs to be solved in the field.

Disclosure of Invention

The invention aims to provide an electric automobile escape system which is beneficial to quick and effective escape of passengers in an automobile when a door on a main driving side is collided and cannot be opened.

According to one aspect of the invention, the electric automobile escape system comprises a seat, a B column and a battery pack, wherein the B column is arranged on a doorsill of an automobile body, a framework shaft is arranged on one side, facing the inside of the automobile body, of the B column, and the seat is arranged on the framework shaft;

the battery pack is arranged below the seat, a plurality of hydraulic cylinders are arranged inside the doorsill, piston pins which correspond to the hydraulic cylinders in a one-to-one mode are arranged on two sides of the battery pack, and the piston pins penetrate through the battery pack and the doorsill upwards and are inserted into the hydraulic cylinders;

a plurality of convex blocks are arranged on one side, facing the seat, of the battery pack, cams with the same number as the convex blocks are arranged on the framework shaft, and when the B column is not collided, the cams respectively correspond to the concave parts on one sides, close to the B column, of the convex blocks; when the B-pillar is collided, the framework shaft moves towards the inside of the vehicle body, and the cams respectively correspond to the convex blocks; and the framework shaft can drive the cam to rotate under the action of collision force, so that the cam downwards extrudes the battery pack and piston pins on two sides of the battery pack are broken and fall off.

Optionally, the electric vehicle escape system according to the invention comprises a vehicle body floor, wherein a through hole is formed below the cam, and a part of the battery pack, which is provided with a convex block, penetrates through the through hole and is matched with the cam;

and a plurality of seat mounting points are arranged on the floor of the vehicle body, and the seat mounting points are equally distributed on the left side and the right side of the through hole.

Optionally, according to the electric vehicle escape system of the invention, three layers of sealing edges are arranged between the battery pack and the vehicle body floor.

Optionally, according to the electric vehicle escape system of the invention, a plurality of rotating plates are arranged at the joint of the framework shaft and the B-pillar, and the rotating plates and the framework shaft are arranged in an inclined manner, so that when the B-pillar collides, the collision force of the B-pillar can push the rotating plates to rotate, so that the framework shaft rotates.

Optionally, according to the electric vehicle escape system of the present invention, the rotating plate is annularly disposed on the skeleton shaft around a center line of the skeleton shaft.

Optionally, according to the electric vehicle escape system of the present invention, the side wall of the frame shaft is cut to form a flat surface, so as to limit the relative sliding between the cam and the frame shaft.

Optionally, according to the electric vehicle escape system of the invention, the piston pin is of an i-shaped structure, one end of the piston pin is connected to the lower side of the battery pack, the other end of the piston pin is connected to the inner side of the hydraulic cylinder, and a cross rod of the piston pin located in the hydraulic cylinder divides the hydraulic cylinder into an upper cavity and a lower cavity.

Optionally, the electric vehicle escape system according to the present invention further includes a flow guide tube, one end of the flow guide tube passes through the lower sidewall of the threshold and is connected to the upper cavity, and the other end of the flow guide tube passes through the piston pin and is connected to the lower cavity;

the guide pipe is used for conveying oil in the hydraulic cylinder to the lower cavity, and the oil can jack up the piston pin on the cross rod in the hydraulic cylinder.

Optionally, according to the electric vehicle escape system of the present invention, a balance valve is disposed at a connection between a lower side of the hydraulic cylinder and the flow guide pipe, and when the vehicle is horizontal or inclined by less than 60 °, the balance valve is closed, and the oil does not automatically flow back to the upper cavity from the lower cavity; when the vehicle inclines for more than 60 degrees, the balance valve is opened, and the oil can automatically flow back to the upper cavity.

The electric automobile escape system disclosed by the invention is mainly used for a new energy automobile provided with a battery pack, so that the electric automobile escape system can be used for escape when the automobile door cannot be opened due to side collision of the automobile, and can effectively and quickly help crews to escape, thereby ensuring the personal safety. Through the matching of the cam and the convex block on the battery pack, when the vehicle door is impacted and extruded, the cam can jack the battery pack downwards, so that a passenger can conveniently escape from the bottom of the vehicle body; in addition, when the collision force on the vehicle body is small, the battery pack can be separated through the external force factor of the passengers, and the separated battery pack can still be continuously used, so that the maintenance cost is saved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of an electric vehicle escape system disclosed by the invention;

FIG. 2 is a front view of an electric vehicle escape system (without a seat) according to the present disclosure;

FIG. 3 is a perspective view of the disclosed skeletal shaft;

FIG. 4 is a schematic illustration of a vehicle body floor disclosed herein;

fig. 5 is a bottom view of the electric vehicle escape system disclosed in the present invention;

FIG. 6 is a schematic illustration of the connection of the disclosed hydraulic cylinder and piston pin.

Description of reference numerals: 1-column B; 2-a threshold; 3-a seat; 4-a skeleton shaft; 41-a cam; 42-plane; 43-rotating plate; 5-a battery pack; 51-raised bumps; 52-a recess; 6-hydraulic cylinder; 61-piston pin; 62-a draft tube; 63-upper chamber; 64-a lower cavity; 64-a balancing valve; 7-vehicle body floor; 71-seat mounting point.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

According to fig. 1 to 6, the invention provides an electric vehicle escape system, which comprises a seat 3, a B-pillar 1 and a battery pack 5, wherein the B-pillar 1 is arranged on a threshold 2 of a vehicle body, a framework shaft 4 is arranged on one side of the B-pillar 1 facing the interior of the vehicle body, and the seat 3 is arranged on the framework shaft 4;

the battery pack 5 is arranged below the seat 3, a plurality of hydraulic cylinders 6 are arranged inside the threshold 2, piston pins 61 which correspond to the hydraulic cylinders 6 one by one are arranged on two sides of the battery pack 5, and the piston pins 61 penetrate through the battery pack 5 and the threshold 2 upwards and are inserted into the hydraulic cylinders 6;

the side of the battery pack 5 facing the seat 3 is provided with a plurality of convex blocks 51, the skeleton shaft 4 is provided with cams 41 with the same number as the convex blocks 51, and when the B-pillar 1 is not collided, the cams 41 respectively correspond to the concave parts 52 of the convex blocks 51 on the side close to the B-pillar 1; however, when the B-pillar 1 is collided, the frame shaft 4 moves toward the inside of the vehicle body, and the cams 41 correspond to the respective projecting blocks 51; and the frame shaft 4 can drive the cam 41 to rotate under the action of the collision force, so that the cam 41 downwards presses the battery pack 5 and the piston pins 61 on the two sides of the battery pack are broken and fall off.

In practice, through the cooperation of the cam 41 and the protruding block 51 on the battery pack 5, when the door is pressed by collision, the collision force can drive the frame shaft 4 to rotate, so that the frame shaft 4 drives the cam 41 to move and rotate towards the inner side of the vehicle body, at this time, the cam 41 contacts with the protruding block 51 on the battery pack 5 and generates a downward pressing force, so that the cam 41 can push the battery pack 5 downwards, and a passenger can conveniently escape from the bottom of the vehicle body.

Further, the vehicle body floor 7 is included, a through hole 72 is formed below the cam 41 of the vehicle body floor 7, and the part, on which the convex block 51 is arranged, of the battery pack 5 penetrates through the through hole 72 and is matched with the cam 41; a plurality of seat attachment points 71 are provided on the vehicle body floor 7, and the seat attachment points 71 are equally distributed on the left and right sides of the through hole 72. In practice, the vehicle body floor 7 in the present invention is no longer a conventional closure, but it is not closed under the occupant, that is, when the vehicle is not equipped with the battery pack 5, a person sits on the seat 3 and the feet can directly step on the ground. When the battery pack 5 falls off, the through holes 72 can facilitate quick escape of people in the vehicle.

And furthermore, a three-layer sealing edge is arranged between the battery pack 5 and the floor 7 of the vehicle body, so that the air tightness and the sound insulation effect in the vehicle can be ensured.

Further, a plurality of rotating plates 43 are arranged at the joint of the frame shaft 4 and the B-pillar 1, the rotating plates 43 and the frame shaft 4 are arranged in an inclined manner, and when the B-pillar 1 collides, the colliding force can push the rotating plates 43 to rotate, so that the frame shaft 4 rotates. In practice, the inclined rotor plate 43 will drive the frame shaft 4 to rotate after the rotor plate 43 is impacted, similar to the fan principle. So that the frame shaft 4 is not only moved inward, but the cam 41 is brought into contact with the bump 51; the cam 41 can also be rotated so that the lug will apply a downward force to the lug 51 which will disengage the battery pack 5 from the through hole 72 in the vehicle body floor 7.

Furthermore, the rotating plate 43 is annularly arranged on the frame shaft 4 with the center line of the frame shaft 4 as the center of the circle, so as to ensure that the frame shaft 4 can stably and continuously rotate.

Furthermore, a plane 42 is cut on the side wall of the frame shaft 4, so that the cam 41 and the frame shaft 4 are limited to slide relatively, and the idle rotation between the cam 41 and the frame shaft 4 is avoided.

Further, as shown in fig. 6, the piston pin 61 has an i-shaped structure in which one end is connected to the lower side of the battery pack 5 and the other end is connected to the inside of the hydraulic cylinder 6, and a cross bar of the piston pin 61 located inside the hydraulic cylinder 6 divides the hydraulic cylinder 6 into an upper chamber 63 and a lower chamber 64. When the piston pin 61 is arranged, the cross bar above the piston pin 61 is provided with a piston ring, so that the upper cavity 63 and the lower cavity 64 are completely separated, and the sliding part of the piston pin 61 and the hydraulic cylinder 6 is also provided with a corresponding sealing ring to ensure the supporting force of the lower cavity 64 to the piston pin 61.

Still further, a draft tube 62 is also included, one end of the draft tube 62 passes through the lower side wall of the rocker 2 and is connected with an upper cavity 63, and the other end passes through the piston pin 61 and is connected with a lower cavity 64; the fluid guide tube 62 is used to convey the oil in the hydraulic cylinder 6 to the lower cavity 64, and the oil can jack up the cross rod of the piston pin 61 in the hydraulic cylinder 6. When the vehicle is assembled, the piston pin 61 is inserted into the hydraulic cylinder 6 from the battery pack 5, and the oil in the upper chamber 63 is drawn back to the lower chamber 64 side through the draft tube 62. The battery pack 5 is fixedly connected with the threshold 2.

Furthermore, a balance valve 64 is arranged at the joint of the lower side of the hydraulic cylinder 6 and the draft tube 62, when the vehicle is horizontal or inclined by less than 60 degrees, the balance valve 64 is closed, and the oil cannot automatically flow back to the upper cavity 63 from the lower cavity 64 side; when the vehicle inclines for more than 60 degrees, the balance valve 64 is opened, oil can automatically flow back to the upper cavity 63, at the moment, the oil does not exert supporting force on the piston pin 61, and the piston pin 61 moves downwards partially. When the external pressure of 400N-550N is applied, the upper cross bar of the piston pin 61 can be broken, so that the piston pin 61 can be pulled out downwards, the battery pack 5 falls off, and passengers can escape from the through hole 72 of the vehicle body floor 7.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An electric automobile escape system is characterized by comprising a seat, a B column and a battery pack, wherein the B column is arranged on a doorsill of an automobile body, a framework shaft is arranged on one side, facing the inside of the automobile body, of the B column, and the seat is arranged on the framework shaft;

a plurality of convex blocks are arranged on one side, facing the seat, of the battery pack, cams with the same number as the convex blocks are arranged on the framework shaft, and when the B column is not collided, the cams respectively correspond to the concave parts on one sides, close to the B column, of the convex blocks; when the B-pillar is collided, the framework shaft moves towards the inside of the vehicle body, and the cams respectively correspond to the convex blocks; the framework shaft can drive the cam to rotate under the action of collision force, so that the cam downwards extrudes the battery pack and piston pins on two sides of the battery pack are broken and fall off;

the piston pin is of an I-shaped structure, one end of the piston pin is connected to the lower side of the battery pack, the other end of the piston pin is connected to the inner side of the hydraulic cylinder, and the hydraulic cylinder is divided into an upper cavity and a lower cavity by a cross rod of the piston pin located in the hydraulic cylinder.

2. The electric automobile escape system according to claim 1, comprising a vehicle body floor, wherein a through hole is formed below the cam, and a part of the battery pack, which is provided with the protruding block, penetrates through the through hole and is matched with the cam;

3. The escape system of claim 1, wherein three layers of sealing edges are disposed between the battery pack and the floor of the vehicle body.

4. The escape system of claim 1, wherein a plurality of rotating plates are disposed at the connection between the frame shaft and the B-pillar, and the rotating plates and the frame shaft are disposed in an inclined manner, so that when the B-pillar collides, the collision force can push the rotating plates to rotate, so as to rotate the frame shaft.

5. The escape system of claim 4, wherein the rotating plate is annularly disposed on the frame shaft around a center line of the frame shaft.

6. The escape system of claim 1 wherein the side wall of the frame shaft is cut to provide a flat surface to limit relative sliding movement between the cam and the frame shaft.

7. The electric vehicle escape system of claim 1 further comprising a draft tube having one end passing through a lower sidewall of the rocker and connected to the upper chamber and the other end passing through the wrist pin and connected to the lower chamber;

8. The escape system of claim 7, wherein a balance valve is disposed at a connection between the lower side of the hydraulic cylinder and the flow guide pipe, and when the vehicle is horizontal or inclined by less than 60 °, the balance valve is closed, and the oil does not automatically flow back from the lower cavity to the upper cavity; when the vehicle inclines for more than 60 degrees, the balance valve is opened, and the oil can automatically flow back to the upper cavity.