Electric Wheel Battery Holder Axial Placement
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Solution Overview
Problem
Existing electric wheelchairs face limitations in battery placement and capacity, with traditional battery modules often obstructing the wheel hub and requiring complex detachment mechanisms, which can be challenging for physically incapable users to manage.
Innovation Solution
An electric wheel design featuring a battery holder integrated with the wheel shaft, allowing the battery module to be positioned alongside the wheel hub, with a detachable connector system facilitated by a hook, elastic member, and button for easy battery replacement, and adjustable battery configurations to enhance capacity without increasing the overall size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery module is disposed on the back of the chair seat or within wheel hubs, then the electrical energy can be transformed into kinetic energy for driving the electric wheelchair, but the battery module obstructs the wheel hub and requires complex detachment mechanisms
Solution Approach 1:
The battery system is segmented into a removable battery module and a battery holder, allowing the battery module to be detached from the wheel hub area. The battery holder remains integrated with the wheel shaft while the battery module can be easily removed and reattached, simplifying the detachment mechanism while maintaining reliable electrical connections through dedicated connectors.
Solution Approach 2:
The battery module is extracted from the wheel hub interior and repositioned to be disposed alongside the wheel hub. This extraction eliminates the obstruction problem within the wheel hub while the battery holder's connection to the wheel shaft maintains the necessary electrical connection for driving the wheelchair.
2Quantity of substance
If the battery capacity is increased, then the energy storage capability is improved, but the overall size of the wheel increases
Solution Approach 1:
The battery module is repositioned from a radial arrangement within the wheel hub to an axial arrangement alongside the wheel hub. This dimensional change allows the battery capacity to be increased along the length of the wheel shaft without increasing the radial dimensions of the wheel, thereby maintaining a compact form factor while enhancing energy storage capability.
3Strength
If the battery module is positioned alongside the wheel hub, then the structural strength is enhanced and electrical connection is ensured, but the battery replacement mechanism requires additional components
Solution Approach 1:
The battery holder merges multiple functions into a single integrated component: it provides structural support to enhance the overall strength of the wheel assembly, maintains reliable electrical connection through its connection to the wheel shaft, and enables easy battery replacement through its removable design. This consolidation reduces the need for additional separate components while achieving all necessary functions.
Data Source
AI summary
The disclosure is related to an electric wheel, adapted to a wheel shaft. The electric wheel includes a wheel body, a battery holder, and at least one battery module. The wheel body has a wheel hub configured to be rotatably disposed on the wheel shaft. The battery holder includes a base and at least one first electrical connector connected to each other. The base is configured to be connected to the wheel shaft and disposed side by side to the wheel hub. The base has an outer surface facing away from the wheel shaft. The at least one battery module includes at least one battery storage and at least one second electrical connector. The at least one battery storage has an inner surface in contact with the outer surface of the base. The at least one second electrical connector is detachably mounted on the at least one first electrical connector.