KR20170000910A

KR20170000910A - Apparatus for fixing fuel tank in midship engine vehicle

Info

Publication number: KR20170000910A
Application number: KR1020150090042A
Authority: KR
Inventors: 박승환; 최필선; 류부열; 차문수
Original assignee: 현대자동차주식회사
Priority date: 2015-06-24
Filing date: 2015-06-24
Publication date: 2017-01-04

Abstract

The present invention relates to a fuel tank fixing apparatus of a midship engine vehicle, which greatly increases structural rigidity of a fuel tank (40) through a fuel tank lower frame (70) and is made to prevent excessive deformation, damage to or breakage of the fuel tank (40) at the time of rear collision.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fuel tank fixing device for a mid-

The present invention relates to a fuel tank fixing device for a mid-sea engine vehicle that can effectively prevent the deformation and breakage of a fuel tank by effectively dispersing impact energy in a rear-end collision.

As the income level increases along with the economic development, the preference for vehicles with superior performance and design is increasing. Also, to meet the customers' needs, the car makers have to improve their riding and handling, safety performance, durability, The performance of the various parts is spurring the development of high-performance vehicles that are even better than conventional vehicles.

In the case of a high-performance vehicle, a midship engine rear-wheel drive (MR) type vehicle in which the engine is positioned behind the driver's seat is mainly used for securing stability at a high speed, securing the body rigidity and securing a stable center of gravity.

1 and 2, the mid-sheave engine vehicle is provided with a fixed engine 20 in a space between the front cross member 11 and the rear cross member 12 in the rear-side lower frame 10, A fuel tank (40) is fixedly installed in a space between a partition wall panel (30) for partitioning a passenger compartment and the front cross member (11).

That is, the fuel tank 40 is disposed in front of the engine 20.

The fuel tank 40 is fixedly installed by a plurality of lower bands 50 made of steel material. The lower band 50 surrounds the bottom of the fuel tank 40, One end of which is fixedly coupled to the front cross member 11 and the other end of which is fixedly coupled to the center floor panel 60.

Both ends of the lower band 50 are fixedly coupled by a method such as bolt or welding.

However, the conventional lower band 50 only serves to fix the position of the fuel tank 40, and the structural rigidity of the fuel tank 40 installed due to the lower band 50 is increased, There is a disadvantage in that the collision energy can not be transmitted and dispersed toward the frame of the vehicle in the event of a collision (arrow F1), so that the rear portion of the fuel tank 40, which faces the front cross member 11 in the event of a rear collision, And thus, there is a disadvantage in that a safety accident due to fuel leakage occurs due to excessive deformation, damage, or breakage.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Japanese Laid-Open Patent Publication No. 1996-040302

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to increase the structural rigidity of installed fuel tanks and to effectively transmit and disperse impact energy toward a frame of a vehicle in a rear- And it is an object of the present invention to provide a fuel tank fixing device for a mid-engine engine vehicle which can minimize deformation, damage and breakage, and minimize the occurrence of safety accidents due to fuel leakage.

In order to accomplish the above object, the present invention provides a fuel tank fixing device for a mid-engine engine vehicle, which is configured to support a lower surface of a fuel tank in a state in which the fuel tank is disposed in a longitudinal direction of the vehicle, A fuel tank lower frame; And a fuel tank upper band which surrounds the upper surface of the fuel tank in a state in which the fuel tank is arranged in the front-rear direction of the vehicle and has both ends coupled to the lower frame of the fuel tank.

And the fuel tank is fixed by the fuel tank lower frame and the fuel tank upper band in a space between the front cross member constituting the rear side lower frame of the vehicle and the partition panel separating the vehicle compartment.

Wherein the fuel tank lower frame is symmetrically installed to the left and right with respect to the center of the fuel tank and includes a left frame and a right frame respectively coupled to both ends of the fuel tank upper band; And a connection frame connecting the left frame and the right frame.

One end of the rear side of the left frame and the right frame is coupled to a connection portion of a rear side member constituting a rear side lower frame of the vehicle and a center outer member constituting a center side lower frame of the vehicle; And the front end of the left frame and the front end of the right frame are connected to a center inner member constituting a center-side lower frame of the vehicle.

The left frame and the right frame are coupled to the center outer member in a Y-shape in a branched manner with reference to the rear side member.

The fuel tank lower frame and the fuel tank upper band are formed of steel.

According to the present invention, the structural rigidity of the fuel tank can be greatly increased through the lower frame of the fuel tank, so that the fuel tank can be stably installed.

In addition, the present invention can effectively disperse and transfer the impact energy generated in the rear collision to the lower frame of the vehicle through the lower frame of the fuel tank, thereby improving the durability of the lower frame of the vehicle. Further, Thereby preventing damage or breakage of the fuel, thereby minimizing safety accidents caused by fuel leakage.

1 and 2 are a perspective view and a bottom view for explaining a conventional fuel tank installation structure,
3 to 5 are views for explaining a fuel tank fixing apparatus according to the present invention.

Hereinafter, a fuel tank fixing apparatus for a mid-engine engine vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

3 to 5, the fuel tank fixing device of the mid-engine engine vehicle according to the present invention supports the lower surface of the fuel tank 40 in a state of being arranged in the front-rear direction of the vehicle, A fuel tank lower frame 70 coupled to be connected to the fuel tank lower frame 70; And a plurality of fuel tank upper bands (80) that surround the upper surface of the fuel tank (40) in a state of being arranged in the front-rear direction of the vehicle, and both ends thereof are coupled to the fuel tank lower frame (70).

That is, the fuel tank 40 is disposed in the space between the front cross member 11 constituting the rear-side lower frame 10 of the vehicle and the partition panel 30 partitioning the vehicle compartment, And is fixedly installed by the tank upper band 80.

The mid-engine vehicle is provided with an engine 20 fixedly installed in a space between a front cross member 11 and a rear cross member 12 constituting a rear-side lower frame 10, and a partition panel 30 And the fuel tank 40 is fixedly installed in a space between the front cross member 11 and the front cross member 11 and the engine 20 is installed at the rear position of the fuel tank 40.

The fuel tank lower frame 70 is provided symmetrically with respect to the center of the fuel tank 40 in the left and right directions and includes a left frame 71 and a right frame 72 which are respectively engaged with both ends of the fuel tank upper band 80, And a connection frame 73 connecting the left frame 71 and the right frame 72 to each other.

The connection frame 73 serves to improve the structural rigidity of the left frame 71 and the right frame 72.

One end on the rear side of the left frame 71 and the right frame 72 constitutes the rear side member 13 constituting the rear side lower frame 10 of the vehicle and the center side lower frame 90 of the vehicle And is coupled to the connection portion M1 of the center outer member 91. [

Therefore, the left frame 71 and the right frame 72 have a structure in which the center outer member 91 and the center side member 91 are branched and joined in a Y-shape with respect to the rear side member 13.

The other side of the front side of the left frame 71 and the right side frame 72 is connected to the center inner member 2 constituting the center side lower frame 90 of the vehicle.

The fuel tank lower frame 70 and the fuel tank upper band 80 are preferably formed of steel in order to secure strength and rigidity.

Both ends of the left frame 71 and the right frame 72 and both ends of the fuel tank upper band 80 are joined together by bolt welding or the like.

The fuel tank lower frame 70 according to the present invention greatly increases the structural rigidity of the fuel tank 40 that has been installed due to its own rigidity so that the fuel tank 40 has a more stably installed structure .

The collision energy E transmitted to the rear side member 13 at the time of a rear collision accident (arrow F1) is transmitted to the left outer frame 71 and the right outer frame 72 of the fuel tank lower frame 70 and the center outer member 91 (E1, E2), and the impact energy E2 transmitted to the left frame 71 and the right frame 72 among them is transmitted to the center inner member 92. [

Accordingly, it is possible to effectively disperse and transmit the impact energy generated in the rear collision to the lower frame of the vehicle through the fuel tank lower frame 70, thereby improving the durability of the lower frame of the vehicle. Particularly, It is possible to prevent excessive deformation, damage or breakage of the fuel tank 40 by the front cross member 11, thereby minimizing safety accidents due to fuel leakage There is an advantage to be able to do.

In addition, the collision energy can be shared and transmitted through the connecting frame 73 connecting the left frame 71 and the right frame 72, so that the structural rigidity of the fuel tank lower frame 70 can be further improved There is also an advantage.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 - Rear side lower frame 11 - Front cross member
12 - Rear Crossmember 13 - Rear Side Member
30 - bulkhead panel 40 - fuel tank
70 - fuel tank lower frame 71 - left frame
72 - Right frame 73 - Connection frame
80 - Fuel tank upper band 90 - Center side lower frame
91 - Center Outer Member 92 - Center Inner Member

Claims

A fuel tank lower frame which supports the lower surface of the fuel tank in a state of being arranged in the front-rear direction of the vehicle and has both ends connected to the lower frame of the vehicle; And
And a fuel tank upper band that surrounds an upper surface of the fuel tank in a state where the fuel tank is arranged in the front-rear direction of the vehicle and has both ends thereof coupled to the lower frame of the fuel tank.

The method according to claim 1,
Characterized in that the fuel tank is fixedly installed by a fuel tank lower frame and a fuel tank upper band in a space between a front cross member constituting a rear lower frame of the vehicle and a partition panel partitioning a vehicle compartment Fuel tank fixing device.

The method according to claim 1,
Wherein the fuel tank lower frame is symmetrically installed to the left and right with respect to the center of the fuel tank and includes a left frame and a right frame respectively coupled to both ends of the fuel tank upper band; And
And a connection frame connecting the left frame and the right frame to each other.

The method of claim 3,
One end of the rear side of the left frame and the right frame is coupled to a connection portion of a rear side member constituting a rear side lower frame of the vehicle and a center outer member constituting a center side lower frame of the vehicle;
Wherein the left side frame and the other side of the front side of the right frame are coupled to a center inner member constituting a center side lower frame of the vehicle.

The method of claim 4,
Wherein the left frame and the right frame are coupled to the center outer member so as to branch in a Y-shape with respect to the rear side member.

The method according to claim 1,
Wherein the fuel tank lower frame and the fuel tank upper band are formed of steel.