Surfboard Replaceable Battery Bow Handle Mechanism
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Solution Overview
Problem
Surfboards with electric drives require frequent interruption of use for battery charging, leading to undesirable waiting phases that hinder continuous sporting activities.
Innovation Solution
A surfboard with a replaceable battery housed in a pivotally mounted battery housing that can be easily inserted and removed from a recess in the surfboard, allowing for quick battery swaps without interrupting use, and an electric drive system that includes a jet propulsion mechanism for continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rechargeable battery is integrated into the surfboard for electric drive, then the surfboard can operate in calm waters without waves, but the surfboard requires frequent interruption for charging
Solution Approach 1:
The battery system is segmented into a removable battery unit that can be separated from the surfboard. The battery housing with the battery can be quickly detached from the recess in the surfboard, allowing the surfer to replace a depleted battery with a charged one without interrupting the surfing activity. This segmentation enables continuous operation by decoupling the battery replacement process from the overall system operation.
2Reliability
If a fixed battery is used in the surfboard, then the power supply is stable, but the battery is laborious to replace and causes waiting phases
Solution Approach 1:
The battery housing is designed with a dynamic mounting system that transitions from a fixed state during operation to a removable state during replacement. The housing includes engagement features that securely hold the battery in place during surfing, but allow for quick release when needed. This dynamic design maintains power supply stability during use while enabling easy replacement when the battery is depleted.
3Reliability
If the battery housing is designed for secure mounting, then the battery remains stable during surfing, but the insertion and removal forces are high
Solution Approach 1:
The mounting mechanism is segmented into separate engagement features distributed around the battery housing perimeter. Instead of relying on a single high-force connection point, multiple lower-force engagement points work together to secure the battery. This segmentation reduces the peak mechanical forces required for insertion and removal while maintaining overall mounting stability during surfing activities.
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 continuous surfing without the need for frequent charging, as the battery can be swapped quickly, and the jet drive provides reliable propulsion in both calm and wave conditions, enhancing user experience by minimizing downtime.
Implementation Method 1
The high speed of the propeller sprays water backwards from the nozzle against the direction of travel, thereby giving the surfboard the necessary propulsion.
Implementation Method 2
The propeller is connected via a drive train to an electric motor, which is powered by the battery.
Data Source
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AI summary
Surfboard with an electric drive (2), and a rechargeable battery for the electric drive (2), wherein the rechargeable battery is arranged in a rechargeable battery housing (3), and a first recess (4) for the rechargeable battery housing (3) and a handle (5) on the rechargeable battery housing (3), wherein the handle (5) is designed as a bow handle, which is mounted at handle ends on opposite sides (6) of the rechargeable battery housing (3) so as to be pivotable about a respective pivot point (21), and wherein a pin (9) extends inside the first recess (4) on the recess bottom side of the pivot points (21), and a second nose (33) is formed on each handle end of the bow handle, which nose has a curved edge (34) which bears against the pin, and wherein a distance between a contact point of the curved edge (34) with the pin (9) and the pivot point (21) increases counter to the pivoting movement when the bow handle is opened.