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Side wall inner plate

A technology of side wall inner plate and reinforcing plate, which is applied in the directions of superstructure, sub-assembly of superstructure, transportation and packaging, etc., can solve problems such as cracking and poor toughness, and achieve the effect of increasing toughness and strengthening strength.

Inactive Publication Date: 2015-05-27
WUXI LANGXIAN LIGHTWEIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, the thermoforming material itself has a lot of strength, but its toughness is poor, and if it reaches the material limit after a collision, it will crack

Method used

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with specific drawings.

[0011] like Figure 1 ~ Figure 2 As shown: the side wall inner panel includes a side wall inner panel body 1, a B-pillar body 2, an A-pillar body 3, a flange surface 4, a first reinforcement plate 5, a windshield installation hole 6, and a second reinforcement plate 7 wait.

[0012] like figure 1 As shown, the present invention includes a side wall inner panel body 1, the side wall inner panel body 1 is a ring structure, one side of the ring structure is the B-pillar body 2, and the upper side of the ring structure is the A-pillar body 3; The main part of the inner plate body 1 is obtained by hot forming of ultra-high strength steel, and has a martensitic structure with a strength of 1300-1500 MPa; figure 2 As shown, the upper surface of the A-pillar body 3 is a flange surface 4 overlapping with the top cover. The flange surface 4 is obtained by slow cooling in the ultra-h...

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Abstract

The invention relates to a side wall inner plate for a vehicle. The side wall inner plate comprises a side wall inner plate body, wherein the side wall inner plate body adopts an annular structure; a B column body is arranged on one side of the annular structure; an A column body is arranged on the upper side of the annular structure; the side wall inner plate is characterized in that a main body part of the side wall inner plate body is formed by an ultrahigh-intensity steel thermal forming technology and is a martensitic structure with the intensity of 1,300-1,500MPa; the upper surface of the A column body is a flange face hasped with a top cover; the flange surface is a ferrite and pearlite structure or a bainite structure which is obtained by slow cooling in the ultrahigh-intensity steel thermal forming technology and has the intensity of 500-700MPa; a first reinforcement plate is arranged in an intersection region of the A column body and the B column body; a second reinforcement plate is arranged above a windshield mounting hole on the A column body. According to the side wall inner plate, the flange face hasped with the top cover is changed into a soft region, so that the toughness can be enhanced, and the effect of partially absorbing energy can be achieved; meanwhile, the intensity of the intersection region of an A column and a B column is guaranteed; furthermore, in frontal impact, the A column cannot be bent.

Description

technical field [0001] The invention relates to a side wall inner panel, in particular to a side wall inner panel for a vehicle, and belongs to the technical field of vehicle components. Background technique [0002] Automobile side panel is the key part of automobile body manufacturing, its manufacturing quality directly affects the appearance and performance of the automobile. The side wall inner panel generally has a ring structure, one side of the ring structure is the B-pillar, and the upper side is the A-pillar. In the event of a side collision, the interaction area between the A-pillar and the B-pillar bears the greatest force. Only by ensuring the strength of this area can the safety of the vehicle be guaranteed, and the door can be opened normally after a side collision. In the event of a frontal collision, the bending area of ​​the A-pillar is subjected to a large force, and it is necessary to ensure that the A-pillar does not bend in order to ensure that the door...

Claims

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Application Information

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IPC IPC(8): B62D25/02B62D25/04
CPCB62D25/02B62D25/04
Inventor 孙财陈扬李向荣杨云龙
Owner WUXI LANGXIAN LIGHTWEIGHT TECH CO LTD
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