The invention provides a multi-stage energy absorption auxiliary frame and a vehicle, and belongs to the technical field of automobile parts, the multi-stage energy absorption auxiliary frame comprises a front cross beam, a middle cross beam and a rear cross beam which are fixedly connected between a left longitudinal beam and a right longitudinal beam in sequence; the left longitudinal beam is provided with a left longitudinal beam first-stage energy absorption structure and a left longitudinal beam second-stage energy absorption structure, the right longitudinal beam is provided with a right longitudinal beam first-stage energy absorption structure and a right longitudinal beam second-stage energy absorption structure, and the cross section area of the left longitudinal beam first-stage energy absorption structure is smaller than that of the left longitudinal beam second-stage energy absorption structure; the sectional area of the right longitudinal beam first-stage energy absorption structure is smaller than that of the right longitudinal beam second-stage energy absorption structure. According to the auxiliary frame, the energy absorption structures with different sectional areas are arranged, and through the refined design of the energy absorption structures, the auxiliary frame can be fractured firstly according to the first-stage energy absorption structure with the small sectional area and then fractured according to the second-stage energy absorption structure in the collision process, and the left longitudinal beam and the right longitudinal beam are induced to be fractured in sequence in a graded mode to achieve graded energy absorption; the primary and secondary collision transmission paths alternately act to form multiple protections, so that the safety of personnel in a cabin is improved.
本发明提供一种多级吸能的副车架及车辆,属于汽车零部件技术领域,包括顺次固定连接在左纵梁和右纵梁之间的前横梁、中横梁和后横梁;左纵梁设有左纵梁一级吸能结构和左纵梁二级吸能结构,右纵梁设有右纵梁一级吸能结构和右纵梁二级吸能结构,左纵梁一级吸能结构的截面面积小于左纵梁二级吸能结构的截面面积;右纵梁一级吸能结构的截面面积小于右纵梁二级吸能结构的截面面积。该副车架通过设置截面面积不同的吸能结构,通过该吸能结构细化设计能让副车架在碰撞过程中按截面面积小的一级吸能结构先断裂,二级吸能结构后断裂,诱导左纵梁和右纵梁分级顺次断裂实现分级吸能,碰撞主次传递路径交替作用形成多重保护,从而提升机舱人员安全性。
Multi-stage energy absorption auxiliary frame and vehicle
一种多级吸能的副车架及车辆
2023-09-15
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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