Pivot-Locking Battery Holder for Vibration-Resistant E-Bikes
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Solution Overview
Problem
Existing battery mounts for electric bicycles face challenges in providing a robust, compact, and easy-to-use design that can withstand extreme forces and environmental influences while allowing for easy installation and removal of batteries.
Innovation Solution
A battery holder with two retaining tabs, one of which is resilient, allows the battery to be pivoted into place and locked internally, enabling a lightweight, cost-effective, and ergonomically simple mounting system that is resistant to external influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a robust battery mount is used to withstand extreme forces and vibrations, then reliability is improved, but device complexity and weight increase
Solution Approach 1:
The battery holder is divided into two separate retaining tabs (first and second retaining tabs) that can be independently designed and positioned. This segmentation allows each tab to perform a specific function - the first tab provides initial retention while the second tab provides secure locking - thereby achieving robust mounting without requiring a single complex structure
Solution Approach 2:
The second retaining tab is designed with resilient properties, allowing it to dynamically adapt during battery installation. The tab can flex to accommodate the battery during the pivoting motion and then spring back to lock securely, providing robust retention through dynamic behavior rather than static over-engineering
2Reliability
If a secure locking mechanism is implemented to prevent accidental removal, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The resilient second retaining tab enables automatic locking through dynamic motion. During battery installation, the tab flexes as the battery pivots into place, then naturally springs back to engage the locking position without requiring manual intervention. For removal, the tab can be manually depressed to release the lock, providing secure attachment during normal use while remaining easily operable when needed
Solution Approach 2:
The resilient retaining tab performs the locking action automatically through its own elastic properties. The tab's resilience causes it to self-lock when the battery is properly positioned, eliminating the need for separate locking mechanisms or complex assembly procedures while maintaining secure attachment
3Reliability
If multiple retaining tabs are used to secure the battery, then reliability is improved, but weight and material usage increase
Solution Approach 1:
The solution uses exactly two retaining tabs - the minimum number needed to achieve secure mounting. The first tab provides initial retention and positioning, while the second tab provides secure locking. This segmented approach achieves reliable mounting with minimal material, avoiding the weight penalty of more numerous tabs while maintaining security through the coordinated action of the two tabs
4Reliability
If a complex assembly process is used to ensure secure mounting, then reliability is improved, but productivity deteriorates
Solution Approach 1:
The first retaining tab is positioned and configured in advance to provide initial retention. When the battery is approached for installation, the first tab is already in place to guide and begin the retention process, allowing the second tab to simply complete the locking action during the pivoting motion. This preliminary positioning of the first tab streamlines the assembly process while ensuring secure mounting
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 provides a secure, lightweight, and easy-to-use battery mounting system that withstands vibrations and shocks, allowing tool-free installation and removal, while minimizing material usage and weight, and offering theft protection.
Implementation Method 1
The second retaining tab is designed to be resilient for locking with the battery
Data Source
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Figure 5~6
AI summary
The invention relates to an electric bike (1) having - a bike frame (2) with a frame portion (3), and - a battery holder (9), which is arranged on the frame portion (3) and has two retaining lugs (12, 13), by means of which a battery can be retained in a form-fitting manner, in particular at least in a form-fitting manner, on the frame portion (3), - wherein the battery holder (9) is designed such that - in a first assembly step - the battery (6) can be positioned on the first retaining lug (12) and then - in a second assembly step - can be pivoted towards the frame portion (3) such that the battery (6) comes into engagement with the second retaining lug (13) and is thereby retained, in particular in a form-fitting manner, on the bike frame (3). The invention also relates to a battery holder (9).