E-Bike Drive Battery Assembly for One-Handed Removal Locking
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Solution Overview
Problem
Existing electric bicycle designs require riders to use one hand to hold the drive battery and the other hand to actuate a secondary locking bar for removal, which is complex in terms of manufacturing and inconvenient for users.
Innovation Solution
An electric bicycle with a drive battery assembly featuring a primary locking arrangement and a secondary locking arrangement that can be actuated via a relative movement of the drive battery relative to the bicycle frame, allowing for one-handed removal without the need for a second locking bar, utilizing a guide track and elastic elements for easy unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary locking bar with latching hook is provided to secure the drive battery in intermediate position, then the drive battery can be secured against falling out, but the device complexity increases and manufacturing becomes more complex
Solution Approach 1:
The invention extracts the complex secondary locking bar with latching hook from the system and replaces it with a simple guide track structure. The guide track passively guides the locking pin through defined positions (locked, intermediate, removed) without requiring additional locking components, thus eliminating the complex secondary locking arrangement while maintaining security in intermediate position.
Solution Approach 2:
The guide track serves as an intermediary element that mediates between the locking pin and the drive battery housing. It provides the necessary guidance and constraints to ensure the locking pin moves through the correct sequence of positions (locked → intermediate → removed) without requiring a complex secondary locking mechanism, thereby simplifying the overall device while maintaining reliability.
2Ease of operation
If a second locking bar is actuated using the other hand, then the drive battery can be completely unlocked and removed, but the ease of operation decreases requiring two hands
Solution Approach 1:
The guide track enables the locking pin to automatically transition through the required positions (locked → intermediate → removed) based solely on the movement direction of the drive battery. The system serves itself by using the battery's movement to drive the unlocking sequence, eliminating the need for a separate manual actuation of a second locking bar and allowing one-handed operation.
Solution Approach 2:
The guide track transforms the static secondary locking arrangement into a dynamic system where the locking pin's position is determined by the drive battery's movement state. As the battery moves from locked to intermediate to removed position, the locking pin automatically follows the guide track's defined path, enabling automatic unlocking without additional manual intervention.
3Reliability
If the secondary locking arrangement is provided by means of a secondary locking bar, then the drive battery can be fixed in intermediate position, but the manufacturing complexity increases
Solution Approach 1:
The invention extracts the complex secondary locking bar component from the system and replaces it with a simple guide track structure that can be easily manufactured as a single piece or integrated into the housing. This eliminates the need for separate locking bars, latching hooks, and associated complex assembly processes, significantly simplifying manufacturing while maintaining the ability to secure the battery in intermediate position.
Solution Approach 2:
The guide track serves multiple functions: it guides the locking pin during insertion, secures the battery in intermediate position, and enables complete removal. This multi-functional design eliminates the need for separate specialized components for each function, reducing the number of parts and simplifying manufacturing processes.
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
Enables rapid and simple mounting and demounting of the drive battery, improving user convenience and reducing manufacturing complexity by allowing single-handed removal and universal compatibility with different bicycle frames.
Implementation Method 1
a secondary locking arrangement (16) which fixes the drive battery (6) in the intermediate position. In accordance with the invention, the secondary locking arrangement (16) can be actuated to a removal position in order to remove the drive battery (6) by means of a relative movement of the drive battery (6) relative to the bicycle frame (2)
Data Source
AI summary
The invention relates to an electric bicycle (1) having a bicycle frame (2) and a drive battery (6) which can be fastened thereto, wherein a primary locking arrangement of the drive battery (6) on the bicycle frame (2) is provided by means of a lock (10), wherein, after actuation of the lock (10), the drive battery (6) can be moved to an intermediate position, and with a secondary locking arrangement (16) which fixes the drive battery (6) in the intermediate position, characterized in that the secondary locking arrangement (16) can be actuated to a removal position in order to remove the drive battery (6) by means of a relative movement of the drive battery (6) relative to the bicycle frame (2).