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Automobile rear floor bearing structure

A load-bearing structure and automobile technology, which is applied to the upper structure, upper structure sub-assembly, vehicle parts, etc., can solve the problems of complex structure, poor force on the rear floor, easy cracking, etc., and achieve good load-bearing performance and good manufacturability , the effect of strength draft

Inactive Publication Date: 2010-05-05
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many models of CNG vehicles in the market still use the rear floor structure of ordinary fuel vehicles. There are many deficiencies in the design of the rear part of the floor. The main reason is that the structure is relatively complicated, and it does not show good reinforcement, anti-collision, aesthetics and support.
For CNG vehicles, it is usually necessary to install gas tanks in the luggage compartment, and the rear floor is prone to cracking due to poor force

Method used

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  • Automobile rear floor bearing structure
  • Automobile rear floor bearing structure
  • Automobile rear floor bearing structure

Examples

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Effect test

Embodiment Construction

[0013] Further illustrate the present invention below in conjunction with accompanying drawing:

[0014] see figure 1 and figure 2 , The load-carrying structure at the rear of the floor includes a car rear floor 1 , a rear longitudinal beam 3 and a rear floor side panel 5 , a rear floor reinforcement 2 and a rear floor nut plate 4 . The left and right sides of the rear floor 1 are welded to the rear floor side panels 5 through flanging, and the rear longitudinal beam 3 is welded to the bottom surfaces of the left and right sides of the rear floor 1 . The cross-section of the rear longitudinal beam 3 is L-shaped, and its one side is welded with the bottom edge of the rear floor 1, and the other side is welded with the lower edge of the rear floor side plate 5, so that the back floor 1, the rear longitudinal beam 3 and the rear floor side plate The middle of 5 is surrounded to form a cavity-shaped structure, which has better bearing capacity.

[0015] The left and right side...

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PUM

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Abstract

The invention relates to an automobile rear floor bearing structure, comprising a rear floor of an automobile, rear longitudinal beams, rear floor side boards, rear floor reinforcing parts and rear floor nut boards. The two rear floor reinforcing parts are welded onto the front half part of the rear floor, namely near to the upper parts of the left and the right of one side in the automobile; the outer side edges of the two rear floor reinforcing parts as well as the left side and the right side of the rear floor are welded onto the rear floor side boards, and the inter side edges extend to the edge of the tire placing groove of the rear floor and are in welded connection with the rear floor; and the rear floor nut boards are in the shape of a stripe and are clamped between the rear floor and the rear floor reinforcing parts and welded onto the rear floor and the rear floor reinforcing parts. The automobile floor rear part bearing structure has reasonable design and good strength, is easy to assemble and weld and can be suitable for the automobile whose trunk needs to be provided with a gas tank.

Description

technical field [0001] The invention relates to an automobile body structure, in particular to a floor structure design of a vehicle type in which an air tank needs to be placed in a luggage compartment. Background technique [0002] The car floor structure is mainly used for load bearing, collision safety and installation of various system parts. At present, many models of CNG vehicles in the market still use the rear floor structure of ordinary fuel vehicles. There are many deficiencies in the design of the rear part of the floor. The main reason is that the structure is relatively complicated, and it does not show good reinforcement, anti-collision, aesthetics and support. . For CNG vehicles, it is usually necessary to place gas tanks in the luggage compartment, and the rear floor is prone to cracking due to poor force. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and p...

Claims

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Application Information

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IPC IPC(8): B62D25/20
Inventor 刘飞王恒殷丽华刘正兴
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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