Elastic Holding Elements for Rattle-Free Battery Fixation
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Solution Overview
Problem
Existing arrangements for fixing rechargeable batteries on bicycle frames face issues with rattle and jamming due to tolerance-related dimensional deviations, leading to a sluggish fixation.
Innovation Solution
A guide groove with sliding blocks and elastically deformable holding elements provides an interlocking connection that prevents orthogonal motion, ensuring a rattle-free fixation by matching cross-sections and using a bar for stability, along with an ejection and stop cam for secure positioning and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an interlocking connection with guide groove and sliding blocks is used to prevent rattle, then fixation stability is improved, but the system becomes sluggish or jammed due to tolerance-related dimensional deviations
Solution Approach 1:
The holding elements are made elastically deformable, changing the mechanical parameter of rigidity to flexibility. This allows the holding elements to adapt to tolerance variations in the guide groove and sliding blocks, preventing jamming while maintaining rattle-free fixation through elastic deformation rather than rigid constraint
Solution Approach 2:
The elastically deformable holding elements act as a cushioning mechanism that anticipates and compensates for dimensional deviations before they cause jamming. The elastic deformation absorbs tolerance variations, ensuring smooth operation of the fixation system
2Stability of the object's composition
If the interlocking connection is made tight to eliminate play and prevent rattle, then fixation stability is improved, but the fixation becomes sluggish or jammed
Solution Approach 1:
The holding elements transition from a static rigid connection to a dynamic elastic connection. During installation, the holding elements can deform to accommodate dimensional variations, enabling smooth operation. Once installed, they maintain tight contact to prevent rattle, providing both ease of operation and fixation stability
3Measurement precision
If a rigid interlocking connection is used to ensure precise positioning, then positioning accuracy is improved, but the system cannot accommodate dimensional deviations
Solution Approach 1:
The elastic deformability of the holding elements allows the system to adapt its positioning characteristics. The holding elements can deform to accommodate dimensional deviations while still achieving precise, rattle-free positioning once installed, combining positioning accuracy with tolerance accommodation
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 a stable, rattle-free fixation of energy storage devices on vehicle frames, accommodating dimensional deviations and allowing for easy installation and removal while ensuring electrical contact for auxiliary motors.
Implementation Method 1
The holding elements are at least partially elastically deformable. As a result, the holding elements elastically deform upon contact with a sliding block. Due to the elastic deformation, the holding elements exert a force upon the sliding block.
Data Source
AI summary
The invention relates to an arrangement for fixing an energy storage device (101) on a vehicle frame, the arrangement having a guide groove (203) and one or more sliding blocks (201) which are designed to interlockingly engage into the guide groove (203). The arrangement has one or more holding means (205) which are at least partially arranged in the guide groove (203) and are each elastically deformable due to contact with a sliding block (201).