B-pillar structure of frameless vehicle door and vehicle

Abstract

The invention discloses a B-pillar structure of a frameless vehicle door and a vehicle, and the structure comprises a B-pillar body; the B-pillar body comprises a B-pillar inner plate and a B-pillar reinforcing piece, the transverse section of the B-pillar inner plate is in an n shape, an opening faces the B-pillar reinforcing piece, and the B-pillar inner plate and the B-pillar reinforcing piece define a cavity; a thermal forming patch plate is arranged on the side wall, close to the B-pillar reinforcing piece, of the upper portion of the B-pillar inner plate, the side wall, close to the B-pillar inner plate, of the lower portion of the B-pillar reinforcing piece is fixedly connected with a hinge reinforcing piece, and the upper portion of the hinge reinforcing piece and the lower portion of the thermal forming patch plate are partially overlapped in the radial direction. And the lower end of the B column body is riveted and fixed with an aluminum alloy doorsill boundary beam. The side impact performance of the B-pillar structure can be guaranteed, the problems that when a traditional B-pillar structure is applied to a frameless vehicle door, the strength is poor, the invasion amount of a B-pillar is large, and the B-pillar is bent are solved, and the safety performance of the whole vehicle is effectively improved.

Description

technical field [0001] The invention relates to body parts, in particular to a B-pillar structure of a frameless door and a vehicle. Background technique [0002] At present, the application of frameless doors in electric vehicles is becoming more and more widespread, and has become the mainstream configuration of many high-end electric vehicles. Due to the cancellation of the window frame, the frameless doors have no cavity in the upper part of the B-pillar body, and it is easy to cause a cavity in the lower part when a side collision occurs. There are problems such as bending at the transition position between the part and the upper part without a cavity, and the B-pillar has a large amount of intrusion. The side impact performance is poor and it cannot meet the regulatory requirements. In order to achieve a longer cruising range of electric vehicles, lightweight is a key task in its research. Among them, the steel-aluminum mixed body is an effective method to achieve ligh...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a B-pillar structure of a frameless car door and a vehicle, which can ensure the side impact performance of the B-pillar structure, and solve the problem of poor strength, large B-pillar intrusion, and The problem of B-pillar bending can effectively improve the safety performance of the vehicle

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