The invention discloses a D-pillar upper joint structure. The D-pillar upper joint structure comprises a side frame outer panel, a side frame inner panel, a D-pillar upper reinforcing plate, a roof rear cross beam outer panel and a roof rear cross beam inner panel, wherein the head and tail side edges of the D-pillar upper reinforcing plate are connected with the head and tail side edges of the side frame outer panel; the opposite sides of the side frame inner panel and the roof rear cross beam inner panel are connected with each other; the tail ends of the side frame inner panel and the D-pillar upper reinforcing plate are connected with each other; and the head ends of the roof rear cross beam outer panel and the side frame outer panel are connected with each other. The D-pillar upper joint structure further comprises a D-pillar stiffening plate, wherein the D-pillar stiffening plate is a frame-like plate which is open on one side; the D-pillar stiffening plate is connected with the D-pillar upper reinforcing plate and the side frame inner panel; and a sealed cavity is formed among the D-pillar upper reinforcing plate, the side frame inner panel and the D-pillar stiffening plate. The D-pillar upper joint structure is advantaged in that the structure is simple, the connecting strength of the D-pillar upper joint structure is enhanced, stress concentration can be effectively avoided, the torsional moment-of-inertia of the D-pillar upper joint structure can be increased, the deformation amount of a tail door frame is reduced, and the natural vibration frequency of the D-pillar upper joint structure is increased to avoid resonance and abnormal sounds.
D-pillar upper joint structure
2016-01-06
Patent
Elektronische Ressource
Englisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Automobile B-pillar upper lap joint structure and automobile
Europäisches Patentamt | 2021
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