The invention discloses a front auxiliary frame structure which comprises a longitudinal beam assembly and a cross beam assembly. The longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam; the cross beam assembly comprises a first cross beam, a second cross beam and a third cross beam which are arranged between the first longitudinal beam and the second longitudinal beam; first-class mounting points are symmetrically arranged at the two ends of the first cross beam, second-class mounting points and third-class mounting points are symmetrically arranged on the first longitudinal beam and the second longitudinal beam, a detachable mechanism is arranged on the second-class mounting points and connected with a vehicle body through fasteners, and the first cross beam, the first longitudinal beam and the second longitudinal beam are attached and fastened to the vehicle body. After the front collision of the whole vehicle, the stress of the connecting points of the front auxiliary frame reaches the limit, the front auxiliary frame can fall off at the second type of mounting points, and the fasteners are left in the vehicle body, so that the separation of the front auxiliary frame from the vehicle body, the downward and backward separation of the power assembly, the release of collision energy, the reduction of the speed of the whole vehicle and the alleviation of the rigid collision of a cabin are realized; and the protection on a driver and passengers is improved.
本发明公开了一种前副车架结构,包括纵梁组件和横梁组件;纵梁组件包括第一纵梁和第二纵梁;横梁组件包括设于第一纵梁和第二纵梁之间的第一横梁、第二横梁和第三横梁;第一横梁的两端对称设有第一类安装点,第一纵梁和第二纵梁上对称设有第二类安装点和第三类安装点,第二类安装点上设有可脱落式机构,可脱落式机构通过紧固件与车身相连,第一横梁、第一纵梁和第二纵梁与车身贴合紧固。整车正面碰撞后,前副车架的连接点受力达到极限,前副车架会在第二类安装点处进行脱落,紧固件则留在车身中,从而实现前副车架与车身的分离,带动动力总成向下向后脱离,释放碰撞能量,降低整车减速度,缓解机舱的刚性碰撞,提高对驾驶员和乘员的保护。
Front auxiliary frame structure
一种前副车架结构
12.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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