Detachable Battery Cell Holder With Spring Bus-Bar Contacts
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Solution Overview
Problem
Conventional battery cell assemblies face challenges in efficiently replacing individual defective cells without damaging electrical connections, leading to high maintenance costs and environmental pollution due to the need to replace entire assemblies.
Innovation Solution
A holder system that detachably connects to battery cells, featuring displaceable bus-bar portions that securely contact terminals, allowing individual cell replacement without adhesives, and includes insulating materials to maintain electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If conventional adhesive-based connection methods are used for battery cells, then electrical connections are secured, but replacement of defective cells becomes difficult and costly
Solution Approach 1:
The holder is divided into multiple independent clamp portions (first clamp portion, second clamp portion, third clamp portion) that can independently secure different parts of the battery cell. This segmentation allows individual cells to be easily released and replaced without affecting other cells or requiring complex adhesive removal processes.
Solution Approach 2:
The clamp portions are designed to be movable and displaceable, allowing them to dynamically adjust and secure the battery cell through elastic deformation. The spring element provides dynamic force to maintain electrical contact while enabling easy release when voltage thresholds are met, facilitating quick cell replacement.
2Reliability
If adhesive-based methods are used to secure battery cells, then cells are firmly fixed, but maintenance costs increase due to damage to functional cells during replacement
Solution Approach 1:
The invention replaces chemical adhesion (adhesive-based methods) with a mechanical securing system using spring elements and clamp portions. This mechanical system provides reliable electrical connection through elastic contact while allowing controlled release via voltage-triggered circuit breakers, eliminating the damage to functional cells that occurs during adhesive removal.
Solution Approach 2:
The holder acts as an intermediary component between the battery cell and the electrical connection system. It provides a standardized interface with multiple clamp portions that securely hold the cell while enabling easy release, thereby protecting functional cells from damage during the replacement process and reducing maintenance costs.
3Reliability
If complex electrical connection systems are used, then electrical connections are secure, but environmental pollution increases due to adhesive waste
Solution Approach 1:
The invention extracts and eliminates the adhesive component from the battery cell connection system entirely. By using a purely mechanical securing method with spring elements and clamps, the system maintains reliable electrical connections without generating adhesive waste, thereby reducing environmental pollution.
Solution Approach 2:
The holder components are designed as reusable, durable mechanical elements rather than single-use adhesive materials. The spring elements and clamps can be repeatedly engaged and disengaged without degradation, eliminating the need for disposable adhesives and reducing environmental waste from maintenance operations.
4Ease of repair
If detachable holder system is used, then cell replacement becomes easy, but electrical connection stability may be compromised
Solution Approach 1:
The clamp portions are designed with elastic properties that allow them to dynamically maintain stable electrical contact with the battery cell terminals. The spring element continuously applies force to ensure firm contact during normal operation, while the voltage-triggered release mechanism enables easy replacement only when needed, thus maintaining both stability and ease of repair.
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
Facilitates easy and cost-effective replacement of defective cells, reducing waste and maintenance costs while preserving functional cells, and enhancing energy density in battery assemblies.
Implementation Method 1
a first displaceable portion biased towards the assembled location of the battery cell such that the first displaceable portion is pressed into contact with the portion of the casing defining the first polarity terminal
Data Source
AI summary
Holders configured to detachably connect to battery cells may include a first polarity bus-bar portion configured to removably contact a first polarity terminal of a battery cell when the battery cell is positioned in an assembled location. The battery cell may have at least a portion of a casing encircling an axis of the battery cell, the portion of the casing defining the first polarity terminal. The first polarity bus-bar portion may include a first displaceable portion biased towards the assembled location of the battery cell such that the first displaceable portion is pressed into contact with the portion of the casing defining the first polarity terminal when the battery cell is in the assembled location. The holder may include a second polarity bus-bar portion configured to removably contact a second polarity terminal of the battery cell when the battery cell is positioned in the assembled location.