Preparation method of glass steel high-voltage power distribution box body with screening function

Abstract

The invention provides a preparation method of a glass steel high-voltage power distribution box body with a screening function, and belongs to the technical field of preparation methods of high-voltage power distribution box bodies of new energy locomotives. The preparation method comprises the steps of: (1) preparation of resin glue liquid; (2) preparation of demolding agents; (3) mold preparation; (4) preparation of reinforcing materials for high-voltage power distribution boxes; (5) preparation of screening function materials; (6) molding; (7) adding of screening function materials; (8) curing; (9) mold opening and demolding; and (10) aftertreatment. Glass steel materials are used for replacing traditional metal materials to prepare the high-voltage power distribution boxes, so that battery packs are more stable in performance and lower in weight; in addition, a hand pasting forming method is used for production, so that the traditional manufacturing process is simplified, and thestability and the rigidity of produced products are excellent when the production efficiency is effectively improved; and the screening functional materials are added, so that the battery packs meet national related standard GB7105-88 environment electromagnetic wave sanitary standards of Ministry of Public Health of China.

Description

technical field [0001] The invention relates to the technical field of a method for preparing a high-voltage distribution box of a new energy vehicle, in particular to a method for preparing a glass fiber reinforced plastic high-voltage distribution box with a shielding function. Background technique [0002] With the development of the automobile industry and the influence of energy shortage and high air pollution index, the adjustment of subsidy policy in 2018 has become a hot issue in the new energy automobile industry for a while. Technical index requirements, the power battery pack field requirements greatly increase the system energy density requirements, according to the requirements of new energy buses in 2018, the system energy density is not less than 110Wh / kg, in order to obtain 1.2 times the subsidy, the system energy density needs to reach 140Wh / kg or more. [0003] The energy density of the battery pack also includes the battery management system, among which...

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Problems solved by technology

[0003] The energy density of the battery pack also includes the battery management system, among which the high-voltage distribution box is one of the components of the battery pack management system; in order to achieve the goal of system energy density, in addition to the energy efficiency utilization of the battery pack itself and related materials, the high-voltage distribution box The volume and weight of the box are also particularly critical. At present, battery boxes are basically sheet metal parts, which bring poor stability and heavy weight to the battery pack, reducing the energy efficiency of new energy vehicles; in addition The electrical performance and communication performance of the current high-voltage power distribution box are affected by external interference, which affects the use of the battery pack, making it inconsistent with the relevant national standards GB7105-88 Environmental Electromagnetic Wave Hygienic Standards of the Ministry of Health of China

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