Composite material battery box

A technology of composite materials and battery boxes, which is applied in the direction of battery boxes/coats, secondary batteries, battery covers/end covers, etc., can solve problems such as poor insulation performance, weak corrosion resistance, and a large number of molds, and achieve mileage deviation Controllable, excellent shock and noise reduction performance, and the effect of improving safety performance
CN110459715APending Publication Date: 2019-11-15TAIZHOU HUANGYAN SHUANGSHENG PLASTIC MOLD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
TAIZHOU HUANGYAN SHUANGSHENG PLASTIC MOLD
Publication Date
2019-11-15

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Abstract

The invention discloses a composite material battery box, which comprises a lower shell and an upper cover, wherein the lower shell is of a sandwich structure and comprises an outer shell, a reinforcing support and an inner shell which are bonded into a whole through a structural adhesive, a cooling water path layer is laid on the inner bottom surface of the lower shell, a plurality of battery packs are fixed on the cooling water path layer, and two adjacent battery packs are provide with a mica sheet therebetween; the upper cover is formed by compounding multiple layers of materials, the middle layer of the upper cover is a filling material layer, the upper surface and the lower surface of the filling material layer are laminated with a fiber material layer, and the filling material layerand the fiber material layer are adhered and fixed through foamed polyurethane sprayed on the fiber material layer. According to the technical scheme of the invention, the battery box formed by adopting the composite material of various different materials has the advantages of easy forming, good corrosion resistance, good insulation, high temperature resistance, heat insulation, flame retardance, explosion prevention and the like, improves the safety performance of the battery packs, improves the endurance mileage and the stability of the endurance mileage, reduces the mileage anxiety, and is excellent in shock absorption and noise reduction performance.
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Description

technical field

[0001] The invention relates to the technical field of battery boxes, in particular to a composite material battery box. Background technique

[0002] There are more and more new energy vehicles, most of which are equipped with lithium iron phosphate batteries, but the battery box that can take into account the overall weight of the battery and the safety performance requirements has not been able to get a better solution, so many battery manufacturers and supporting OEMs We are constantly looking for new materials to replace the metal shell to reduce weight. In this case, the metal material is used as the bottom bracket and the glass fiber reinforced plastic material is used as the upper cover. The glass fiber reinforced plastic product has the advantages of light weight, high strength, flame retardancy, easy molding, and easy cleaning. To a certain effect. Despite such optimizations, the overall weight of the battery case is not well optimized.

[0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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