Battery Unit Sealed Case Gas Discharge Path Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery pack designs risk damaging cables when releasing pressure, as the gas discharge from the sealed case can harm the connecting cables, hindering charging and discharging operations.
Innovation Solution
The battery unit incorporates a sealed case with a releasing portion that directs gas discharge away from the cable by positioning it to face a wall of the accommodating body, ensuring the cable is not directly exposed to the discharged gas, and the communication hole is placed to allow safe gas release without damaging the cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the valve member is opened to release pressure from the sealed case, then the internal pressure is reduced, but gas is discharged toward the cable causing damage
Solution Approach 1:
The accommodating body serves as an intermediary structure between the sealed case and the cable. The communication hole is positioned such that gas discharged from the sealed case passes through the accommodating body's interior space rather than directly contacting the cable. This intermediary arrangement allows pressure relief while protecting the cable from gas discharge damage.
Solution Approach 2:
The patent changes the spatial arrangement by positioning the communication hole at a location where the discharge path extends in a different direction away from the cable. The gas discharge path is oriented toward a wall of the accommodating body rather than toward the cable, effectively using spatial dimensionality to separate the discharge path from the vulnerable cable component.
2Ease of operation
If the communication hole is positioned for easy cable connection, then cable accessibility is improved, but gas discharge directly damages the cable
Solution Approach 1:
The communication hole is positioned in the accommodating body at a location that separates the cable connection function from the gas discharge path. The hole allows cable passage while the overall geometry directs gas discharge in a different spatial direction, using dimensional arrangement to fulfill both cable accessibility and cable protection requirements simultaneously.
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
This configuration effectively prevents damage to the cable by directing gas discharge away from the cable, ensuring safe pressure relief without compromising the integrity of the cable or charging/discharging functions.
Implementation Method 1
The sealed case includes a releasing portion, which releases a pressure in the sealed case
Data Source
AI summary
A vehicle body includes an accommodating portion that accommodates a battery pack. A communication hole, which connects the outside and the inside the accommodating portion, is formed in one of the side walls of the vehicle body. The battery pack includes battery cells and a sealed case that accommodates the battery cells. The sealed case includes a case main body having an opening and a lid member fixed to the case main body. The lid member has a first releasing portion and a second releasing portion. A connecting portion for connecting a charging plug to the battery pack is inserted in the communication hole. The connecting portion is connected to the battery cells via wires. The first releasing portion and the second releasing portion are arranged to face a wall of an accommodating body.