Vehicle Battery Mounting Structure for Underfloor Impact Protection
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Solution Overview
Problem
High voltage batteries in electric vehicles require a secure mounting structure to prevent damage and breakage, ensuring safety and durability, especially when installed below the vehicle floor to maximize energy storage capacity and withstand external impacts.
Innovation Solution
A high voltage battery mounting structure featuring a battery case with engagement members, including a flange, thread portion, mounting pipe, and mid plate, which securely couples the battery case to the vehicle body panel, using screw threads and hollow extensions to distribute compressive forces and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the high voltage battery is mounted below the vehicle floor to maximize energy storage capacity, then the space utilization is improved, but the battery becomes more vulnerable to external impacts from the lower side
Solution Approach 1:
The patent implements a mounting structure with engagement members and support elements that are pre-configured to absorb and distribute impact forces before they reach the battery. The structure includes cushioning features and force-distributing elements that are built into the mounting system to protect the battery from external impacts applied from below the vehicle floor.
2Reliability
If a secure mounting structure with multiple engagement members is used to prevent battery damage, then the safety is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into integrated mounting components. The engagement members serve both as structural supports and as impact distribution elements. The flange, thread portion, and support elements are merged into a unified mounting structure that provides both secure attachment and protection, reducing the number of separate components needed.
Solution Approach 2:
The mounting structure elements are designed to perform multiple functions simultaneously. The engagement members provide both mechanical attachment to the vehicle body and impact absorption. The support structure serves both to hold the battery in position and to distribute compressive forces, making each component multi-functional to reduce overall system complexity.
3Duration of action of stationary object
If the battery case is firmly coupled to the vehicle body panel to prevent breakage, then the durability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent employs threaded engagement members that allow for adjustable positioning and tolerance compensation. The thread portions enable fine-tuning of the coupling position during assembly, accommodating variations in manufacturing tolerances of the battery case and vehicle body panel while still achieving firm, durable attachment.
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 structure firmly and safely mounts the high voltage battery, preventing damage and breakage, thereby enhancing the safety and durability of electric vehicles by stabilizing the battery modules and maintaining a firm coupling with the vehicle body.
Implementation Method 1
a thread portion in which the second engagement member is screw-coupled to a central portion of the flange
Implementation Method 2
a hollow through which the second engagement member passes is provided and which is installed to support between an upper cover of the battery case and the vehicle body panel
Data Source
AI summary
Disclosed is a high voltage battery mounting structure for a vehicle. In particular, the high voltage battery mounting structure includes: a battery case located below a vehicle body panel, a first engagement member fixed to the vehicle body panel, a second engagement member configured to pass through the battery case from a lower side to be coupled to the vehicle body panel by the medium of the first engagement member, and a third engagement member in which a hollow through which the second engagement member passes is provided and which is installed to support between an upper cover of the battery case and the vehicle body panel.