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Battery pack impact resistance structure device based on shear thickening material

A battery pack and impact-resistant technology, applied in transportation and packaging, vehicle safety arrangements, bumpers, etc., can solve problems such as deformation of deformed battery packs, safety issues, etc., to improve passability, avoid large deformation, and ensure mechanical integrity Effect

Inactive Publication Date: 2019-04-05
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under a large impact, although the protective structure does not break, it may deform greatly and cause the battery pack to deform, which will also bring safety problems
Shear thickening materials with light weight and impact resistance are rarely used in automobile safety protection. The existing battery pack bottom safety protection is mostly metal protection, and no discussion and discussion on the shear thickening materials used in this regard have been found. application

Method used

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  • Battery pack impact resistance structure device based on shear thickening material
  • Battery pack impact resistance structure device based on shear thickening material
  • Battery pack impact resistance structure device based on shear thickening material

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0020] Such as figure 1 , 2 As shown, the present invention is based on a shear-thickening material battery pack impact-resistant structural device, including a filler 4, the filler 4 is made of DST shear-thickening material, and the outer layer of the filler 4 is provided with a soft rubber capsule 3 , the outer layer of the soft rubber bag 3 is provided with a hard rubber protective cover 2, the cross section of the hard rubber protective cover 2 is arc-shaped, and the two ends are connected with the vehicle frame by bolts 1. in layout as image 3 As shown in a and b, three battery pack impact-resistant structural devices 6 are used, which are connected to the longitudinal beams 5 at both ends of the vehicle frame, and the layout method of "sparse at the front and dense at the back" is adopted. For specific forms, see image 3 In a, the distance be...

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PUM

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Abstract

The invention relates to a battery pack impact resistance structure device based on a shear thickening material. DST material stuffing is arranged on the inner layer. A soft rubber device bag is arranged on the outer layer of the stuffing, and the stuffing is prevented from leaking. A hard rubber protective sleeve is arranged on the outer layer of the soft rubber device bag. The two ends of the hard rubber protective sleeve are connected with an automobile frame through bolts. The viscosity of the DST material used in the battery pack impact resistance structure device is rapidly increased along with the increase of the shearing rate. Under the high-rate impact, the rigidity of the material is higher; and when the battery pack impact resistance structure device passes through an obstacle at a low speed, the material shows a shear thinning phenomenon and is fluid so as to deform properly, and the passing ability of an automobile is improved.

Description

technical field [0001] The invention relates to a battery pack anti-shock protection structure device based on a shear thickening material, which is used for protecting the bottom of a power battery pack and belongs to the technical field of battery safety. Background technique [0002] With the continuous increase of the cruising range of pure electric vehicles, the overall size of the power battery pack is relatively large, and the layout of the exposed bottom makes the environment in which the bottom of the battery is located in actual use extremely complicated. How to effectively avoid the impact of road splashes on the power The impact damage of batteries is gradually becoming a new research topic. [0003] At present, there are two main passive safety protection methods for electric vehicles at home and abroad: one is to design the structure of the car body or battery pack, and the impact force generated by the car collision is not directly loaded on the battery pack, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/02
CPCB60R19/023B60R2019/026
Inventor 许骏段旭冬高翔王璐冰
Owner BEIHANG UNIV
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