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Carbon fiber composite material battery bottom protection plate and electric automobile

A composite material and carbon fiber technology, which is applied in the direction of electric vehicles, battery/battery traction, vehicle components, etc., can solve the problems of poor overall stiffness and NVH performance, heavy parts weight, and large impact load, etc., to achieve good stiffness and reduce Effects of weight and life extension

Pending Publication Date: 2020-06-19
CHONGQING CHANGAN AUTOMOBILE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large protection area of ​​the battery bottom guard plate, it bears a large impact load on the ground. The thickness of its steel parts is generally 2-4mm, and the high density of steel will lead to poor overall stiffness and NVH performance, and heavy weight of parts. Heavy
Especially not suitable for the current electric vehicles that have very strict requirements on light weight and performance

Method used

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  • Carbon fiber composite material battery bottom protection plate and electric automobile
  • Carbon fiber composite material battery bottom protection plate and electric automobile
  • Carbon fiber composite material battery bottom protection plate and electric automobile

Examples

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] see Figure 1 to Figure 3 , the carbon fiber composite battery bottom guard plate shown in , including the guard plate body 1 made of integrally laminated carbon fiber composite material, compared with the steel battery bottom guard plate, it greatly reduces the weight of parts and realizes light weight .

[0022] The front end of the fender body 1 has a first overlapping edge 11 connected to the front sub-frame, and the rear end has a second overlapping edge 12 connected to the battery pack. Specifically, four first overlapping protrusions 13 are arranged at intervals on the first overlapping edge 11, and a first mounting hole 15 connected to the front sub-frame is provided on the first overlapping protrusions 13; Four second overlapping protrusions 14 are arranged at intervals on the second overlapping edge 12 , and second mounting holes 16 connected with ...

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Abstract

The invention discloses a carbon fiber composite material battery bottom protection plate. The protection plate comprises a protection plate body made of an integrally-laid carbon fiber composite material, wherein a front end of the protection plate body is provided with a first lap joint edge connected with a front auxiliary frame, a rear end of the protection plate body is provided with a secondlap joint edge connected with a battery pack, a plurality of reinforcing convex ribs are arranged on the protection plate body at intervals in the width direction, the length of each reinforcing convex rib is larger than 80% of the overall length of the protection plate body, the width of each reinforcing convex rib is larger than 5% of the overall width of the protection plate body, the height of each reinforcing convex rib is smaller than or equal to 10 mm, arc transition is adopted between the reinforcing convex ribs and the protection plate body, and the arc radius is larger than or equalto 5 mm. The protection plate is advantaged in that the use performance requirement of the battery bottom protection plate can be met, and light weight is achieved. The invention further discloses anelectric automobile, the electric automobile comprises a battery system, and the battery system comprises the carbon fiber composite material battery bottom protection plate.

Description

technical field [0001] The invention relates to electric vehicle parts, in particular to a battery bottom guard plate made of carbon fiber composite material and the electric vehicle. Background technique [0002] With the rapid development of electric vehicles, the demand for innovations for this electric vehicle is also increasing. Components for electric vehicles need to reduce weight to achieve longer range, while also being able to reduce noise levels. Carbon fiber composite materials have high specific strength and high specific stiffness, and can achieve a weight reduction of about 30-60% with a slight increase in thickness. Excellent damping performance helps to improve the NVH quality of the car. Compared with steel, carbon fiber composite materials are composed of a large number of carbon fiber filaments, which have the effect of tissue crack expansion, excellent fatigue resistance, and long service life; and carbon fiber composite materials are very corrosion-res...

Claims

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Application Information

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IPC IPC(8): B60L50/64
CPCB60L50/64Y02T10/70
Inventor 刘伯芳杨琴高聪王志白冯刚
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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