Bus Bar Module Voltage Detection Terminal Arrangement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing bus bar module design with a voltage detection terminal faces difficulties in miniaturization and assemblability due to the parallel arrangement of the terminal and barrel portions, leading to bending issues and increased dimensions.
Innovation Solution
The bus bar module incorporates a wire routing portion separated from the bus bar housing portion, with a barrel portion positioned between batteries, allowing the voltage detection terminal to be housed without bending, and includes a connection portion that extends inclined to reduce overall dimensions and improve assemblability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the voltage detection terminal is housed in the bus bar housing portion with the terminal portion and barrel portion arranged in parallel, then the voltage detection terminal can be electrically connected to the battery electrode, but the entire voltage detection terminal bends in the connection direction around the boundary portion between the terminal portion and barrel portion, degrading assemblability
Solution Approach 1:
The patent changes the arrangement dimension of the terminal portion and barrel portion from parallel (in the same plane) to perpendicular (in different planes). The terminal portion is arranged in the connection direction between batteries, while the barrel portion extends in the opposing direction between bus bar housing portions. This dimensional change eliminates the bending issue around the boundary portion while maintaining electrical connection functionality.
2Ease of manufacture
If the barrel portion is made longer in the opposing direction to eliminate bending around the boundary portion, then the voltage detection terminal can be housed without bending, but the dimension of the entire bus bar module increases disadvantageously
Solution Approach 1:
Instead of increasing the length of the barrel portion in the opposing direction, the patent utilizes the third dimension by arranging the terminal portion perpendicular to the barrel portion. This allows the voltage detection terminal to be housed without bending while maintaining compact dimensions in all three spatial directions, achieving both assemblability and miniaturization.
3Volume of moving object
If the voltage detection terminal is designed with a compact structure, then the overall device size can be reduced, but the terminal portion and barrel portion cannot be properly connected without bending issues
Solution Approach 1:
The patent achieves compact sizing by arranging the terminal portion and barrel portion in perpendicular directions rather than extending them in parallel. This three-dimensional arrangement allows both portions to be properly connected and housed without bending issues while maintaining a compact overall structure, simultaneously achieving miniaturization and improved assemblability.
Data Source
AI summary
Provided is a bus bar module and a power supply device capable of reducing the entire size thereof and improving assemblability thereof. A barrel portion of a voltage detection terminal extends from a voltage detection line housing groove provided between batteries and is connected to an outer end portion of a terminal portion in a Y direction through a connection portion, so that it is possible to ensure a Y direction dimension of the barrel portion while reducing a Y direction dimension of the entire bus bar module and power supply device. This can prevent the voltage detection terminal from being bent in an X direction when being bent in the Y direction when being housed in a bus bar housing portion, thereby allowing improvement of assemblability.