Battery frame of electric automobile

Abstract

The invention discloses a battery frame of an electric automobile. The battery frame is used for arranging a power battery pack of an electric automobile, and comprises a frame body with an upward opening, wherein the frame body comprises a rectangular bottom plate and side plates around the bottom plate; the bottom plate and each side plate are molded integrally; each side plate constructs the frame body together with the bottom plate by bending towards the same direction; adjacent side plates are connected hermetically; and frame sections for reinforcing the frame body are arranged on the edge of and inside the frame body. Due to the adoption of a peripheral reinforcing process for the frame body and the frame sections which are molded in a bending way, a processing technic is simple, welding workload is reduced, the welding standard requirement is lowered, the pressure resistance and hermetic tensile strength are enhanced, processing cost is reduced, and size accuracy is ensured.

Description

technical field [0001] The invention belongs to the field of vehicle power devices, in particular to an electric vehicle battery frame. Background technique [0002] With the development of industrial technology, petroleum resources as a power source are decreasing due to their non-renewability. At the same time, in order to reduce environmental pollution, the exhaust emissions of fuel vehicles are also increasingly strictly controlled. Based on the above reasons, green new energy has become the development. Popularity, electric vehicles have also become the focus of research and development in the current automotive industry. As the power core of electric vehicles, the battery needs to be installed in a battery frame with compact space, pressure resistance and good sealing, such as figure 1 and figure 2 As shown, at present, the electric vehicle battery frame adopts one bottom plate 11 and eight side plates 12 (three on the front and rear sides, one on each of the left a...

AI Technical Summary

Problems solved by technology

This structure has the following defects: 1. The welding time is long and requires high welding skills; 2. Cross-welding is prone to pores and crack defects; 3. Too many welds are too dense, and internal stress between welds causes weld cracks Defects and internal hole position offset of the box, high welding sealing requirements and high welding costs

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