Lightening method of battery protective cover for electric buses and battery protective cover

Abstract

A lightening method of a battery protective cover for electric buses is provided. The battery protective cover includes a protective cover body, a maintenance door mounted on the protective cover body, and a connector for mounting and connecting the battery protective cover. The battery protective cover is characterized in that both the protective cover body and the maintenance door are made of a heat-insulating sandwich material, the heat-insulating sandwich material is composed of two fiber-reinforced plastic layers and a PVC (polyvinyl chloride) foam layer pasted between the two fiber-reinforced plastic layers, and the connector is embedded in the protective cover body. The lightening method of the invention has the advantages that the weight and manufacture cost of the battery protective cover for electric buses are effectively decreased, the lightening requirement of electric buses is met, and the overall appearance effect of the battery protective cover is improved. The invention also provides a battery protective cover.

Description

technical field [0001] The invention relates to a lightweight method for a battery protective cover of an electric passenger car and a product thereof, which are used for reducing the weight of the battery protective cover of an electric passenger car, and belong to the technical field of lightweight improvement of electric passenger cars. Background technique [0002] In order to save the equipment space of the electric bus body, more and more OEMs install the space-occupied battery pack on the top of the bus body, which provides more space for other equipment in the bus body, and also makes the interior of the bus more efficient. More passenger space. In order to protect the battery pack from the influence of external natural environments such as ultraviolet rays, rain, wind and sand, the battery pack is arranged in the battery protective cover. [0003] The current conventional battery shield has the following problems: [0004] 1. Conventional battery shields use mor...

AI Technical Summary

Problems solved by technology

This kind of protective cover is strong but heavy, because the weight has an important impact on the battery life of the electric bus, and during the assembly process of the protective cover, the excessive weight will have a great impact on the difficulty of assembly and the safety of the assemblers

[0005] 2. Since the battery pack must be installed with other auxiliary equipment, such as fire extinguishers, an installation interface needs to be left on the top of the battery cover, and the current commonly used method is to weld bolts on the metal frame, which affects the appearance of the protective cover, and the welded bolts prevent The rust effect is also general

[0006] 3. In order to obtain a better heat insulation effect, it is also necessary to bond a layer of heat insulation material on the protective cover. Due to the high heat insulation requirements of this material, the current price is also relatively high

[0007] 4. The inspection door on the protective cover is directly riveted and connected to the cover body. During the hoisting process, the inspection door is easily deformed, and the replacement of the inspection door is inconvenient.

[0008] 5. The installation interface parts of the protective cover are directly welded on the frame. If the corresponding interface of the roof is changed, it is necessary to cut the installation interface of the protective cover and then weld other specification interface parts, which will affect the appearance of the product and be inconvenient to operate

[0012] The protective cover in the above patent does not propose a method for reducing the weight of the protective cover, and does not improve the connection method of the connecting interface of the protective cover

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