Magnetic Trigger Braking for Tunable Kinematic Response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices that utilize eddy current generation for controlling movement, such as in braking mechanisms, lack the ability to finely tune the speed of activation and resistance once movement commences, limiting their application flexibility and efficiency.
Innovation Solution
A device comprising members in a kinematic relationship governed by magnetic flux interactions, allowing for tunable resistance to movement by varying the magnetic flux between trigger and first members, enabling controlled and adjustable braking actions through eddy current forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If eddy current generation is used to control movement rate, then braking effect is achieved, but the ability to finely tune activation speed and resistance is limited
Solution Approach 1:
The patent applies parameter changes by utilizing eddy current generation through magnetic flux interaction between the rotor assembly and conductive members. By changing the relative motion between these components, the eddy current strength varies, providing continuous tunability of braking resistance without requiring multiple discrete mechanical adjustments. This transforms the control mechanism from discrete variable adjustments to continuous parameter modulation through motion control.
2Speed
If arms are drawn back towards the axis of rotation to reduce braking, then speed control is achieved, but control once movement commences is limited
Solution Approach 1:
The patent implements dynamics by making the conductive members movable relative to the rotor assembly, allowing their position and orientation to change dynamically during operation. This enables the braking effect to be modulated in real-time based on operational conditions, providing adaptive control throughout the movement cycle rather than fixed pre-set characteristics. The system transitions from static geometric relationships to dynamic adjustable configurations.
3Adaptability or versatility
If fixed geometric relationships are used between members, then device simplicity is maintained, but tuning capability is restricted
Solution Approach 1:
The patent replaces traditional mechanical adjustment mechanisms with electromagnetic interaction. Instead of using mechanical linkages, gears, or adjustable linkages to change the kinematic relationship between components, the system uses magnetic flux-induced eddy currents to create a force field that dynamically adjusts the effective geometric relationship. This substitutes complex mechanical adjustment systems with a more elegant electromagnetic control approach.
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 precise control over the rate of movement and resistance, preventing unwanted activation or slowing of brake engagement, enhancing the device's application flexibility and performance in various scenarios.
Implementation Method 1
at least one magnetic flux interaction that, in effect, may provide a tuneable resistance to movement, changing the rate of relative movement between the members
Implementation Method 2
the kinematic relationship at least partially governed by at least one magnetic flux interaction
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
In one embodiment, the device comprises a first member in a kinematic relationship with at least one further member to form a system. The system interacts when an external energising force is imposed on the system causing the members to respond due to their kinematic and dynamic characteristics and thereby creating relative motion between the members. A trigger member is coupled to the at least the first member and moves in response to a pre-determined system movement. When the trigger member moves, the trigger member imposes a braking action on the system or members thereof. The speed or intensity of the braking action imposed by the trigger member on the system or members thereof is controlled by the trigger member rate of movement. This rate of movement is in turn governed by a magnetic flux interaction between the trigger member and the at least one first member causing formation of a magnetically induced eddy current force between the parts.