Battery Pack Box Shielding Structure for Lateral Collision Protection
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Solution Overview
Problem
The hitch part of a battery pack is vulnerable to failure during vehicle collisions due to its exposure and lack of protective shielding, compromising the safety and performance of the battery pack and the vehicle.
Innovation Solution
A box with a frame member, fixing member, and shielding member is designed, where the shielding member has a hollow portion to absorb and cushion lateral collision forces, with separate first and second shielding members providing high strength and resistance to extrusion forces, and a hitch portion is accommodated within the hollow portion to prevent direct collision impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hitch part is exposed to the outside for easy access and installation, then the ease of operation is improved, but the reliability deteriorates because it becomes vulnerable to collision damage
Solution Approach 1:
The hitch part is nested within the hollow portion of the shielding member, which is itself connected to the frame member. This nested structure allows the hitch part to be accessible during normal operation while being protected by the shielding member during collisions, resolving the contradiction between ease of access and safety.
2Ease of manufacture
If the shielding member is made as a single integral structure, then the manufacturing simplicity is improved, but the strength deteriorates compared to separate pieces
Solution Approach 1:
The shielding member is divided into a first shielding member and a second shielding member that are connected to each other. This segmentation allows each piece to be optimized for strength while maintaining manufacturing feasibility, and the connection between pieces creates a more robust structure that can better resist extrusion forces during lateral collisions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively safeguards the battery pack's performance and integrity by absorbing and cushioning collision forces, enhancing the safety and reliability of the battery pack and vehicle during lateral collisions.
Implementation Method 1
the hollow portion disposed in the shielding member serves functions of absorbing and cushioning the squeezing force in the lateral collision
Data Source
AI summary
Embodiments of this application provide a box, a battery pack, and a device, and relate to the technical field of energy storage devices. The box includes a frame member, a fixing member, and a shielding member. The frame member is configured to form an accommodation cavity. The fixing member is configured to mount the box. The fixing member is connected to the frame member. The shielding member is configured to be connected to the frame member. The shielding member includes a hollow portion. At least a part of the fixing member is accommodated in the hollow portion. The battery pack includes the box and a battery accommodated in the accommodation cavity of the box. The device includes the battery pack, and the battery pack is configured to provide electrical energy.