Electric vehicle lower vehicle body frame and electric vehicle thereof
A technology for electric vehicles and car bodies, which is applied to electric power units, power units, vehicle components, etc., can solve the problems of easy damage to battery packs, improve passive safety performance, improve torsional stiffness and bending stiffness, and protect batteries. Effect
Active Publication Date: 2021-05-14
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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- Application Information
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Problems solved by technology
[0009] Therefore, it is necessary to provide an electric vehicle lower body frame and its electric vehicle, which solves the problem of directly installing the battery pack on the lower vehicle body in the prior art, so that the battery pack is exposed outside, and the battery pack is easily damaged when the vehicle body is hit.
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[0048] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.
[0049] In the description of this application, unless otherwise clearly stipulated and limited, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or Note that the term "multiple" means two or more; the terms "connection" and "fixation" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated Ground connection, or electrical connection; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according...
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The invention relates to an electric vehicle lower vehicle body frame and an electric vehicle thereof. The electric vehicle lower vehicle body frame comprises a front cabin assembly, a front floor assembly and a rear floor assembly. The front floor assembly comprises a battery mounting frame, a front floor panel and a battery tray; the battery mounting frame comprises two doorsill beams and two first cross beams; the two ends of the doorsill beams are fixedly connected with the front cabin assembly and the rear floor assembly respectively, the two doorsill beams are fixedly connected through the two first cross beams, the doorsill beams are of a hollow structure, the doorsill beams are arranged to be of an anti-collision structure, and when the doorsill beams are collided, the side collision force is transmitted to the front cabin assembly and the rear floor assembly. Different from the prior art, the battery frame directly participates in the side collision supporting structure, so that the structure transmission path during side collision is increased, and the passive safety performance of the vehicle is improved.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to an electric vehicle lower body frame and its electric vehicle Background technique [0002] In recent years, people have paid more and more attention to the safety of pure electric vehicles. The battery pack assembly is located at the bottom of the passenger compartment of electric vehicles. As a core component of electric vehicles, it is also a key sensitive component of electric vehicle collision safety design. [0003] Such as figure 1 As shown, the traditional battery installation method is that the battery module is first installed in an independent battery pack, and then the battery pack is connected to the longitudinal beam under the floor or the side sill beam through bolts to the car body. The battery pack in the traditional battery installation form needs to be surrounded by the upper and lower covers of the battery pack, the overall weight is heavy, and the energy density i...
Claims
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Login to View More IPC IPC(8): B62D23/00B60K1/04
CPCB62D23/00B60K1/04B60K2001/0438
Inventor 严鑫林密詹文章傅振兴赵明田维
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD