Busbar Alignment Features for Stable Electrical Assembly
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Solution Overview
Problem
Existing electrical busbar systems lack effective alignment features that prevent relative position or orientation changes during assembly and operation, which can lead to manufacturing inefficiencies and potential electrical issues.
Innovation Solution
The busbar system incorporates alignment features such as boss and recess features on the surfaces of the busbars, allowing for precise alignment without additional components, using pins, holes, and slots to engage and secure the busbars, ensuring stable electrical contact and preventing motion during assembly and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If busbars are connected without alignment features, then assembly is simpler, but relative position and orientation change during assembly and operation
Solution Approach 1:
The alignment features (bosses and recesses) are integrated directly into the busbar structures themselves, merging the alignment function with the electrical connection function. This eliminates the need for separate alignment components while ensuring stable relative positioning and orientation during assembly and operation.
Solution Approach 2:
The boss and recess features are pre-formed as integral parts of the busbars during manufacturing. This preliminary action ensures that when the busbars are assembled, the alignment features automatically guide and constrain the relative position and orientation, preventing misalignment before the electrical connection is finalized.
2Manufacturing precision
If assembly aids (jigs) are used to constrain busbars, then alignment is achieved, but additional cost and mass are introduced
Solution Approach 1:
The busbars are designed with self-aligning features (bosses and recesses) that automatically guide and constrain their relative positioning during assembly. This self-service mechanism eliminates the need for external assembly aids like jigs, reducing both cost and assembly complexity while maintaining high alignment precision.
Solution Approach 2:
The alignment function is merged into the busbar structures themselves through integrated boss and recess features. This eliminates the need for separate assembly aids, reducing device complexity and cost while achieving the required alignment precision for electrical connections.
3Strength
If additional fasteners are used to secure busbars, then connection strength is improved, but cost and device complexity increase
Solution Approach 1:
The alignment features (bosses and recesses) are designed to serve dual purposes: providing precise alignment guidance and contributing to connection strength through their engagement geometry. This merging of alignment and fastening functions reduces the number of separate components needed while maintaining adequate connection strength for electrical applications.
Solution Approach 2:
The boss and recess features perform multiple functions simultaneously: they provide alignment guidance, constrain relative motion, and contribute to mechanical connection strength. This multi-functionality reduces the total number of components required while achieving both precise alignment and secure connection.
Data Source
AI summary
A busbar system is configured to carry current, such as, for example, in a battery system. The busbar system includes two or more busbars, that interface at respective surfaces and are aligned by one or more alignment features. The one or more alignment features may include a boss feature such as a pin or other protrusion, a recess such as a hole, slot, or other recess feature, or both a boss feature and a recess feature. Each busbar may include an alignment feature that engages with the alignment feature of the other busbar to cause, maintain, or otherwise effect alignment. Alignment of the busbars ensures relative position, prevents relative motion, or both. The busbars are engaged with each other by positioning the busbars such that their mating surfaces can engage, and then engaging alignment features of the busbars to provide alignment of the busbars relative to each other.