Cabin lower cross beam assembly and pure electric vehicle

Abstract

The invention provides a cabin lower cross beam assembly and a pure electric vehicle. A vehicle body cabin lower cross beam and two front longitudinal beam castings connected with the two ends of thevehicle body cabin lower cross beam are included, the vehicle body cabin lower cross beam is a hollow beam, a first lap joint edge and a second lap joint edge are formed at the tail end of the vehiclebody cabin lower cross beam, the first lap joint edge is located above the second lap joint edge, and the first lap joint edge extends relative to the second lap joint edge; a third lap joint edge and a fourth lap joint edge are formed on the sides, close to the vehicle body cabin lower cross beam, of the front longitudinal beam castings, the third lap joint edge is located above the fourth lap joint edge, and the fourth lap joint edge extends relative to the third lap joint edge; the first lap joint edge is in lap joint with the third lap joint edge, and the second lap joint edge is in lap joint with the fourth lap joint edge. The vehicle body cabin lower cross beam can be assembled from top to bottom, so that the sealing performance is improved; the lap joint positions of the first lapjoint edge and the third lap joint edge are staggered relative to the lap joint positions of the second lap joint edge and the fourth lap joint edge, and the connecting strength of the vehicle body cabin lower cross beam and the front longitudinal beam castings is improved.

Description

technical field [0001] The invention belongs to the technical field of vehicles, and in particular relates to an engine room lower beam assembly and a pure electric vehicle. Background technique [0002] current models, such as Figure 6 to Figure 8 , the engine room lower beam assembly includes the body cabin lower beam 1' and two front longitudinal beam castings 2' connected to the two ends of the vehicle body cabin lower beam, in order to realize the body cabin lower beam 1' and the front longitudinal beam castings 2' on both sides The demand for connection strength needs to ensure that the lower beam 1' of the vehicle body cabin can be effectively connected with the surroundings of the castings 2' of the front longitudinal beams on both sides, and at the same time, it needs to meet the basic performance requirements such as sealing. [0003] Such as Figure 6 to Figure 8 , the existing lower beam assembly of the engine room, the lower beam 1' of the vehicle body cabin ad...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the problem of insufficient connection strength of existing schemes, to provide a lower beam assembly of the engine room and a pure electric vehicle

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