Active Vibratory Control Device Integrating Conductive Spring
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Solution Overview
Problem
Existing active vibratory control devices for vehicles are bulky due to the need for a flexible, long electrical supply cable to prevent stress on the coil's connections, making them difficult to install and integrate into a fixed housing.
Innovation Solution
Incorporating an elastic body made of electrically insulating material with a conductive circuit attached to the spring, eliminating the need for a flexible cable by integrating the electrical supply directly into the spring, which connects the coil to the electrical supply circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible cable is used to supply electricity to the moving coil, then the cable fatigue strength is improved, but the device size increases and integration becomes difficult
Solution Approach 1:
The patent combines the electrical supply function with the mechanical spring element by integrating conductive circuits directly into the spring structure. This merging eliminates the need for separate flexible cables, thereby maintaining reliability while significantly reducing device size and enabling integration into fixed housings.
Solution Approach 2:
The spring serves multiple functions simultaneously: it provides mechanical support, enables movement, and conducts electricity. By making the spring multi-functional, the patent eliminates the need for dedicated flexible cables, thus improving reliability without increasing device volume.
2Strength
If a long flexible cable with large radius of curvature is used, then cable stress is reduced, but the device becomes bulky
Solution Approach 1:
The patent merges the cable function into the spring structure itself, where the conductive circuit is integrated into the spring's elastic body. This eliminates the need for long flexible cables with large radii of curvature, thereby maintaining stress resistance while achieving a compact device shape suitable for vehicle integration.
3Volume of moving object
If the electrical supply circuit is integrated into the spring, then device size is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent uses composite material structures where conductive circuits are integrated into the spring's elastic body. This approach reduces device size while managing manufacturing complexity through the use of composite materials that combine structural and electrical functions in a single component.
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
This design reduces the overall size of the active vibratory control device, enhancing installation ease and integration into vehicle systems while maintaining vibration generation capabilities.
Implementation Method 1
the coil and the carcass being configured so that, when the coil has a variable current passing through it, it generates a magnetic field suitable for moving the movable element along the movement axis, thus generating vibrations
Implementation Method 2
the spring comprises an elastic body made from electrically insulating material and at least one conductive circuit attached to the elastic body, connecting said electrical supply circuit to the coil
Data Source
AI summary
Active vibratory control device comprising an armature, a movable element comprising a coil and mounted so as to be able to slide with respect the armature, a spring connecting the armature to the movable element. The armature comprises an electrical supply circuit and the spring comprises a conductive part that connects the electrical supply circuit to the coil.