The utility model belongs to the technical field of vehicles, and relates to the force transfer structure of the front longitudinal beam and the all-aluminium body, including the front longitudinal beam, the threshold beam, the longitudinal beam of the floor middle passage, the lower cross beam of the front fence plate and the front longitudinal beam reinforcement. The longitudinal beam of the floor middle passage is connected to the lower cross beam of the front fence plate, and the three connections of the front longitudinal beam reinforcement are connected to the front longitudinal beam, the threshold beam and the front fence respectively. At the end of the cross beam under the plate, the problems of large number of parts, complex connection and high cost of the force transfer structure of the front longitudinal beam in the existing scheme are solved. The front longitudinal beam reinforcement is used to connect the front longitudinal beam, the threshold beam and the lower cross beam under the front fence plate. The front longitudinal beam reinforcement plays the role of three-way force transfer, which not only improves the stiffness of the force transfer passage between the front longitudinal beam, the threshold beam and the longitudinal beam of the floor middle passage, but also improves the stiffness of the force transfer passage between the front longitudinal beam It effectively connects the front longitudinal beam with the threshold beam and the longitudinal beam of the middle passage of the floor, simplifies the connection structure between the front longitudinal beam and the threshold beam, and the longitudinal beam of the middle passage of the floor, saves the assembly time and reduces the cost.
【技术实现步骤摘要】
前纵梁传力结构及全铝车身
本技术属于车辆
,特别是涉及前纵梁传力结构及全铝车身。
技术介绍
当前车型,为了应对法规需求的正碰、偏置碰以及自身车身整体刚度需求,需要在前纵梁端部受力通过传力通道分散至门槛纵梁以及地板中通道纵梁。如图1和图2所示,现有的一种前纵梁传力结构,采用两个铸造铝合金件5'、6'将前纵梁1'的端部与门槛梁2'连接,采用一个挤出铝合金型材7'将前纵梁1'的端部与地板中通道纵梁3'连接,地板中通道纵梁3'连接于前围板下横梁4'。这种前纵梁传力结构的缺点是:为了前纵梁1'的端部传力至门槛梁2'和地板中通道纵梁3',需要建立两个传力通道;由于连接前纵梁1'和门槛梁2'的传力通道在前轮胎包络区域,这就需要通过两个铸造铝合金件5'、6'组成型面复杂的传力通道;需要增加一个挤出铝合金型材7'作为另一传力通道,挤出铝合金型材7'通过螺栓连接前纵梁1'和地板中通道纵梁3';这样结构件多,连接区域大,需要大量螺栓连接,耗材成本高,工时需求长。如图3和图4所示,现有的另一种前纵梁传力结构,前纵梁1'的端部连接冲压铝板8'、9',冲压铝板8'、9'分别连接门槛梁2'和地板中通道纵梁3',从而建立起前纵梁1'与门槛梁2'的传力通道及前纵梁1'与地板中通道纵梁3'的传力通道,同时,增加一根连接前纵梁1'的地板纵梁10'来补充传力通道。这种前纵梁传力结构的缺点是:前纵梁1'的端部通过冲压铝板8'、9'分别连接门槛梁2'和地板中通道纵梁3',由于冲压铝板8'、9'属于薄板结构,刚度较弱,冲压铝板8'、9'需要通过多块板材组合拼焊才能提供足够的刚度,同时,由于冲压铝 ...
【技术保护点】
1.一种前纵梁传力结构,包括前纵梁、门槛梁、地板中通道纵梁、前围板下横梁和前纵梁加强件,所述地板中通道纵梁连接于所述前围板下横梁,其特征在于,所述前纵梁加强件的三个连接部分别连接所述前围板下横梁的一端、所述前纵梁和所述门槛梁。
【技术特征摘要】
1.一种前纵梁传力结构,包括前纵梁、门槛梁、地板中通道纵梁、前围板下横梁和前纵梁加强件,所述地板中通道纵梁连接于所述前围板下横梁,其特征在于,所述前纵梁加强件的三个连接部分别连接所述前围板下横梁的一端、所述前纵梁和所述门槛梁。2.根据权利要求1所述的前纵梁传力结构,其特征在于,所述前纵梁加强件包括框体和设于所述框体内的加强筋,所述前纵梁、所述前围板下横梁和所述门槛梁连接于所述框体。3.根据权利要求2所述的前纵梁传力结构,其特征在于,所述框体包括第一围边、第二围边及设于所述第一围边和所述第二围边之间的底边,所述底边的上表面和/或下表面设有所述加强筋。4.根据权利要求3所述的前纵梁传力结构,其特征在于,所述底边高于所述第一围边的底部和所述第二围边的底部。5.根据权利要求3所述的前纵梁传力结构,其特征在...
【专利技术属性】
技术研发人员:陈宗明,耿富荣,李永祥,杨宏,陈东,
申请(专利权)人:广州汽车集团股份有限公司,
类型:新型
国别省市:广东,44
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