Battery Module Terminal Holder Locking for Secure Assembly
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Solution Overview
Problem
Existing battery module configurations face challenges in securely fixing terminal members to holders without complicating the assembly process, as terminal members can detach easily and the assembly process is often cumbersome.
Innovation Solution
A battery module design featuring a terminal member with a low-rigidity portion and a holder with protrusions and recesses that fit elastically, along with a bolt member, to securely fix the terminal member in multiple directions, preventing detachment and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal member is inserted into the holder and fixed using conventional configurations, then the terminal member can be electrically connected to the battery cell, but the terminal member may detach in the direction opposite to insertion
Solution Approach 1:
The patent introduces a protrusion in a direction orthogonal to the insertion direction (second direction orthogonal to first direction). This protrusion engages with a corresponding recess to prevent detachment, adding a dimensional constraint that complements the insertion-based fixing mechanism.
Solution Approach 2:
The holder is designed with asymmetric features including a protrusion on one side and a corresponding recess, creating a non-reversible engagement that prevents the terminal member from detaching while maintaining simple insertion assembly.
2Reliability
If conventional fixing configurations are used to prevent terminal member detachment, then fixing reliability improves, but the assembly configuration becomes complicated
Solution Approach 1:
The fixing mechanism is segmented into distinct functional elements: an insertion-based fixing portion and an orthogonal protrusion-recess engagement. This segmentation allows each element to perform its specific function independently, maintaining overall simplicity while ensuring reliable fixation.
Solution Approach 2:
The protrusion and recess are designed to automatically engage when the terminal member is inserted into the holder, providing self-aligning and self-fixing functionality that reduces assembly complexity while ensuring reliable connection.
3Reliability
If the terminal member is fixed using multiple fixing points, then detachment prevention improves, but the assembly process becomes cumbersome
Solution Approach 1:
The patent merges the insertion action with the protrusion-recess engagement action into a single operational step. As the terminal member is inserted, both the primary fixing and the orthogonal engagement occur simultaneously, preventing detachment without requiring separate assembly operations.
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 design effectively secures the terminal member to the holder, preventing detachment and simplifying the assembly process, ensuring reliable electrical connections and secure fastening.
Implementation Method 1
the first protrusion and the first recess are fitted to each other with elastic deformation of the low-rigidity portion
Data Source
AI summary
A terminal member is electrically connected to at least one battery cell of a plurality of battery cells. A holder is located at an end portion of a stack and can fix the terminal member by inserting the terminal member into the holder in a first direction. One of the terminal member and the holder is provided with a first protrusion protruding in a second direction orthogonal to the first direction. The other of the terminal member and the holder is provided with a first recess fitted to the first protrusion.