Sliding Battery Housing Shield for Underbody Impact Protection
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Solution Overview
Problem
Existing battery systems for vehicles, particularly those positioned in underbody parts, face challenges with mechanical loads that can damage the battery housing and components, and current protection solutions complicate maintenance by obstructing access to internal components.
Innovation Solution
A protection assembly with a base sheet and coupling members that can be easily assembled and disassembled laterally, using steel for stiffness and impact absorption, allowing for stable coupling and easy exchange without requiring extensive vertical space, featuring flaps and openings for enhanced stability and impact absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protection member is added below the battery housing to protect against mechanical loads, then protection against mechanical loads is improved, but device complexity and maintenance difficulty worsen due to obstructed access to internal components
Solution Approach 1:
The protection assembly is divided into separable components: a bottom cover and a protection member that can be coupled and decoupled independently. This segmentation allows the protection member to be removed without permanently altering the battery housing structure, thereby maintaining protection while enabling access to internal components for maintenance.
Solution Approach 2:
The coupling members are designed to transition between coupled and decoupled states dynamically. During normal operation, the protection member remains coupled for maximum protection. During maintenance, the protection member can be decoupled to provide access, and then recoupled afterward, allowing the system to adapt between protection and maintenance modes.
2Reliability
If a protection assembly is designed with stable coupling for mechanical protection, then reliability is improved, but ease of operation worsens due to difficulty in assembly and disassembly
Solution Approach 1:
Traditional mechanical fastening methods like bolts, screws, or clips are replaced with a lateral sliding coupling mechanism. The coupling members engage through simple lateral motion without requiring threading, tightening, or complex alignment, thereby achieving stable coupling while maintaining ease of assembly and disassembly.
Solution Approach 2:
The coupling members are designed to self-align and self-lock during lateral sliding engagement. The geometric configuration of the coupling surfaces automatically guides the protection member into the correct position and secures it without requiring external tools or additional fastening operations, making the assembly process intuitive and tool-free.
3Object-affected harmful factors
If vertical space is increased to accommodate protection components, then protection effectiveness is improved, but volume of stationary object worsens due to increased overall size
Solution Approach 1:
Instead of increasing vertical space for protection components, the design utilizes lateral dimension for coupling and engagement. The protection member extends laterally beyond the bottom cover edges, distributing protective function across horizontal space rather than requiring additional vertical clearance, thereby maintaining protection effectiveness without increasing overall volume.
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 provides effective protection against mechanical loads while enabling convenient assembly and disassembly, reducing the complexity of maintenance and storage, and ensuring the battery system remains functional and safe.
Implementation Method 1
using steel for stiffness and impact absorption
Implementation Method 2
protection member...allowing for stable coupling and easy exchange
Implementation Method 3
The first and second coupling members are adapted such that the protection member is mechanically coupled to the bottom cover by sliding the protection member in a first direction along the bottom cover
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention refers to a protection assembly (1) comprising a bottom cover (10) of a battery housing and a protection member (30) which is below the bottom cover (10) in a coupled state. The bottom cover (10) comprises a plurality of first coupling members formed on a first surface (12) of the bottom cover (10) and the protection member (30) comprises a plurality of second coupling members formed on a second surface (32) of the protection member (30), the first and second surface (12, 32) face each other in the coupled state, and the first and second coupling members are adapted such that the protection member (30) is mechanically coupled to the bottom cover (10) by sliding the protection member (30) in a first direction (D1) along the bottom cover (10) until each of the second coupling members engage with corresponding first coupling members.