A lightweight electric vehicle battery box
A technology for electric vehicles and battery boxes, which is applied in the direction of batteries, battery pack components, and isolation of batteries from their environment. The effect of poor mechanical properties
Active Publication Date: 2020-05-05
WUHAN UNIV OF TECH
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Problems solved by technology
[0002] With the rapid development of electric vehicles, the lightweight process of vehicles is also accelerating. At present, most of the battery boxes used in electric vehicles are made of metal materials. Low, poor electrical insulation, these are unfavorable factors hindering the development of lightweight electric vehicles
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[0015] The technical solution of the present invention will be described below with reference to the drawings and embodiments.
[0016] Such as figure 1 As shown, a lightweight electric vehicle battery box according to the present invention includes a rectangular box body 1 and a box cover 2. The box body 1 and the box cover 2 are both made of an outer skin 11, an inner skin 12, and both The filling layer between them is made by bonding. The opening of the box body 1 is provided with a prefabricated flange 13, and the prefabricated flange 13 is provided with a number of connecting holes 14. The box cover 2 is fixed to the opening of the box 1 through the connecting holes 14 Above; the outer skin 11 and the inner skin 12 are made of carbon fiber uniaxial prepreg and carbon fiber plain weave prepreg mixed paving and curing; the outer skin 11 and inner skin 12 are made of several Layers of carbon fiber uniaxial prepreg are laminated and bonded in turn, and the surface layers of the ...
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The present invention relates to the technical field of new energy vehicles, and specifically refers to a lightweight electric vehicle battery box; it includes a rectangular box body and a box cover, and the box body and the box cover are both composed of an outer skin, an inner skin and a gap between the two. The filling layer is bonded, and the opening of the box body is provided with a prefabricated flange, and a number of connection holes are arranged on the prefabricated flange, and the box cover is fixed on the opening of the box body through a number of connection holes; the outer skin and the inner skin Both are made of a mixture of carbon fiber uniaxial prepreg and carbon fiber plain weave prepreg; the structure of the invention is reasonable, and the inner and outer layers of the box body and box cover are made of composite materials, which have the characteristics of fire resistance, flame resistance and corrosion resistance. Reinforced components made of carbon fiber prepreg cloth, rock wool board reinforced side panels fill the space between the inner and outer skins, and cooperate with the mechanical substrate in the box cover to form a cross-shaped staggered filling layer around the box, which effectively enhances the overall strength of the battery box and avoids the traditional The battery box is bulky and its mechanical properties are poor, which meets the requirements for the lightweight development of electric vehicles.
Description
Technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a lightweight electric vehicle battery box. Background technique [0002] With the rapid development of electric vehicles, the lightweight process of automobiles is also accelerating. At present, most of the battery boxes used in electric vehicles are made of metal materials, and their shortcomings include: high quality, easy corrosion, fatigue, and designability Low and poor electrical insulation are all unfavorable factors hindering the lightweight development of electric vehicles. Carbon fiber composite materials are widely used in structural materials to improve product performance because of their light weight, high strength, corrosion resistance, good thermodynamic properties, and strong designability. Therefore, by applying carbon fiber composite materials to electric vehicle battery boxes, most of the problems of traditional metal battery boxes can be effectively ...
Claims
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IPC IPC(8): H01M2/10H01M50/249
CPCH01M2200/00H01M50/24H01M50/20Y02E60/10
Inventor 王继辉潘斌孙子恒韩霞张浩冯雨薇
Owner WUHAN UNIV OF TECH