Variable Pressure Chamber Actuation With a Movable Coil Drive
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Solution Overview
Problem
Existing stimulation devices for human erogenous zones lack the ability to provide a variable pressure field with improved operating characteristics, including efficient movement dynamics and reduced disruptive vibrations.
Innovation Solution
A device utilizing a linear drive mechanism with a movable chamber wall portion coupled to a coil device within a stationary magnetic field, generating a variable pressure field through alternating positive and negative pressures, sealed from the ambient environment, and powered by a battery device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating electric motor with eccentric shaft and piston is used, then the device can generate vibrations for stimulation, but the structure becomes complex and the stroke cannot be modified during operation
Solution Approach 1:
The patent replaces the rotating electric motor with electromagnetic actuators (voice coil motors or piezoelectric actuators) that directly generate linear motion. This substitution eliminates the need for eccentric shafts, connection rods, and pistons, thereby simplifying the drivetrain structure while enabling adjustable stroke through electrical control of the actuators.
2Adaptability or versatility
If an electric linear motor with multiple coils is used, then higher diversity of vibrations is achieved, but the structure remains complex with multiple coil elements
Solution Approach 1:
The patent achieves diversity of vibrations by changing electrical parameters (frequency, amplitude, pulse width modulation) of the electromagnetic actuators rather than using multiple physical coil elements. This allows varied vibration patterns to be generated through software control of the actuator parameters, eliminating the need for complex multi-coil arrangements.
3Productivity
If a movable coil device in stationary magnetic field is used, then efficient movement dynamics and reduced vibrations are achieved, but the device requires precise positioning and control
Solution Approach 1:
The electromagnetic actuators inherently provide precise positioning control through their control electronics, which can accurately regulate the position, velocity, and acceleration of the movable chamber wall portion. The system uses feedback control mechanisms where the actuator's own control circuitry manages the positioning precision, eliminating the need for separate complex positioning systems.
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
The device achieves efficient and dynamic stimulation with reduced vibrations and sound emissions, allowing for precise control of pressure frequencies and differentials, enhancing user experience.
Implementation Method 1
a coil device, through which an electric current flows during operation, is movably arranged in an assigned stationary permanent magnetic field and is coupled to the movable chamber wall portion in order to transmit the drive movement
Data Source
AI summary
A device for stimulating a human erogenous zone includes a housing; a drive device; a pressure chamber at least partially surrounded by a chamber wall; a chamber wall portion, the drive device to cause the chamber wall portion to repeatedly move between different wall positions to cause a volume of the pressure chamber to vary to cause pressure in the pressure chamber to modulate between positive pressures and negative pressures relative to an ambient pressure; a housing opening, the positive pressures and the negative pressures to be output via the housing opening; and a seal to seal the pressure chamber with respect to an ambient environment, the drive device including a coil through which an electrical current is to flow, the drive device disposed in a magnetic field and coupled to the chamber wall portion to transmit the drive movement to cause the chamber wall portion to move.