Battery Connection Structure with Perpendicular Conduction Blades
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Solution Overview
Problem
Existing accumulator battery connection structures lack sufficient mechanical rigidity, heat dissipation, and protection against mechanical impacts and degassing issues, while also requiring efficient electrical conduction and minimal thickness for compact designs.
Innovation Solution
A connection structure comprising separate contact blades extending along a connection plane and conduction blades perpendicular to it, providing both electrical conductivity and mechanical rigidity, with conduction blades extending significantly in the perpendicular direction for enhanced heat dissipation and mechanical protection, and featuring cavities for welding and potential degassing channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If thin foils are used for electrical connection, then the connection structure achieves compactness and low weight, but the mechanical rigidity and heat dissipation capability are insufficient
Solution Approach 1:
The patent transitions from planar foils to three-dimensional conduction blades that extend perpendicular to the connection plane. This dimensional change allows the connection structure to achieve both compactness in the connection plane and enhanced mechanical rigidity through vertical extension, resolving the contradiction between weight and strength.
Solution Approach 2:
The connection structure combines conductive material with structural design elements, creating a composite system where the conduction blades serve both electrical conduction and mechanical support functions. This composite approach enables the structure to achieve high strength-to-weight ratio while maintaining electrical conductivity.
2Reliability
If larger conduction section is used, then electrical conduction efficiency improves, but the thickness of conduction elements increases reducing compactness
Solution Approach 1:
The conduction blades extend in the vertical dimension perpendicular to the connection plane, allowing the electrical conduction path to utilize three-dimensional space. This enables adequate conduction section for efficient current flow while maintaining small thickness in the horizontal plane, preserving compactness.
Solution Approach 2:
The conduction structure is divided into multiple thin conduction blades arranged in parallel, each contributing to the total conduction section. This segmentation allows the aggregate conduction capacity to be sufficient while individual blade thickness remains small, maintaining compactness.
3Strength
If connection structure extends significantly in perpendicular direction, then mechanical rigidity and heat dissipation improve, but the complexity of assembly increases
Solution Approach 1:
The patent merges multiple functions into the conduction blades: electrical conduction, mechanical support, and heat dissipation. By combining these functions into a single integrated component, the assembly process is simplified despite the vertical extension, as no separate components are needed for each function.
Solution Approach 2:
The conduction blades serve multiple purposes simultaneously: conducting electricity, providing mechanical rigidity through vertical extension, and dissipating heat through increased surface area. This multi-functionality reduces the number of separate components needed, simplifying assembly despite the enhanced structural requirements.
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 solution achieves efficient electrical conduction, mechanical rigidity, and effective heat dissipation while providing structural support and protection against mechanical impacts and degassing, enhancing the overall performance and safety of accumulator batteries.
Implementation Method 1
a set of conduction blades electrically connecting the contact blades, these conduction blades extending substantially perpendicular to the connection plane
Implementation Method 2
The connection structure extending significantly in the direction perpendicular to the connection plane (the conduction blades by definition having a large surface area relative to their thickness), which gives the connection structure great mechanical rigidity. The connection structure can thus play a structural role and supplement or even replace the mechanical elements which are generally provided for the assembly of accumulators in the form of a battery.
Implementation Method 3
welding of each contact blade to a terminal of one of the accumulators of said set of accumulators, by arranging a welding head in said cavity
Data Source
Figure 1
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AI summary
Battery connection structure, adapted to electrically connect the accumulators of a battery, and comprising a conductive element which includes: separate contact blades (4) each extending along a connection plane (P), these contact blades (4) each being adapted to be connected to a battery terminal, all the contact blades (4) extending in the same connection plane (P); a set of conduction blades (5) electrically connecting the contact blades (4), these conduction blades (5) extending substantially perpendicularly to the connection plane (P).