E-bike Clamping Device With Inductive Charging Coils
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Solution Overview
Problem
Existing holding devices for electric bicycles lack reliable support and efficient energy transmission to the vehicle's accumulators, with inefficient inductive charging and cumbersome separate components for recharging.
Innovation Solution
The holding device incorporates coils with metal windings in the locking head and coupling for efficient inductive energy transfer, allowing for reliable support and simplified charging without additional components, with adjustable height for balanced force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between the free legs of the holding bracket is increased to accommodate different seat tube diameters, then the adaptability is improved, but the reliability of bicycle support deteriorates
Solution Approach 1:
The holding bracket is designed with elastically deformable free legs that can dynamically adjust their position. When a bicycle is inserted, the legs deform elastically to accommodate the seat tube, providing adaptive support while maintaining reliable holding force through elastic restoration
Solution Approach 2:
The distance between the free legs is made variable through elastic deformation rather than fixed. The legs can change their spatial configuration within elastic limits to adapt to different seat tube diameters while maintaining sufficient prestressing force for reliable support
2Adaptability or versatility
If the inner diameter of the holding bracket is increased to accommodate different seat tube sizes, then the adaptability is improved, but the efficiency of inductive energy transmission deteriorates
Solution Approach 1:
The holding bracket transitions from a rigid structure to one with elastically deformable components. The free legs deform to reduce the air gap between the bracket and seat tube during charging, improving inductive coupling efficiency while maintaining adaptability to different tube sizes
Solution Approach 2:
The elastic legs are pre-stressed to exert a preliminary compressive force on the seat tube. This preliminary action reduces the initial air gap before charging begins, optimizing the inductive energy transmission from the start of the charging process
3Ease of operation
If the free legs of the holding bracket are made flexible to accommodate different tubes, then the ease of operation is improved, but the reliability of support deteriorates due to loss of prestressing force
Solution Approach 1:
The free legs are designed as flexible elastic elements that can bend and deform. This flexibility allows easy insertion and removal of bicycles while the elastic properties ensure reliable support through continuous prestressing force
Solution Approach 2:
The elastic legs are pre-stressed to provide a cushioning force that maintains reliable support. This beforehand cushioning compensates for any loss of prestressing force during repeated use, ensuring consistent holding reliability
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
Ensures reliable support and efficient energy transmission to the bicycle's accumulators, enabling easy handling and operation, even by weak individuals, while eliminating the need for separate charging components.
Implementation Method 1
a wire winding, which forms a coil and generates a magnetic field, is provided in the holding bracket. The magnetic field acts on a coil of wire winding arranged in the seat tube, so that the magnetic field is inductively transmitted from the headband to the coil in the seat tube of the bicycle and thus the battery on the bicycle is supplied with voltage
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The device (1) has a wall (5) or a ceiling (6) supported at a bottom part (4) and secured at a holder arm (11). The wall or the ceiling is aligned parallel and spaced to the bottom part that is vertical to a longitudinal axis of the holder arm. An inner contour of a clutch is adapted to an outer contour of a fix head. The fix head is inserted into the clutch in an interchangeable or engagable manner. Energy transmission units are cooperated in the fix head and the clutch. Electrically operated magnetic coils are formed in the clutch, by transformation of inductive electric energy.