Massage Device Voice Coil Actuator Magnetic Cushioning
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Solution Overview
Problem
Existing massaging devices for sexual stimulation generate vibrations with high frequency and low amplitude, leading to discomfort, noise, and reduced massage effect, while also consuming excessive energy and having a lengthy design.
Innovation Solution
The use of end magnets with identical magnetic polarity to the core, arranged coaxially with the housing axis, to create soft and impact-free reciprocating movements, reducing noise and energy consumption, and optimizing the device's length and massage effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional electric motors with unbalanced vibration elements are used, then mechanical vibrations are generated, but the vibrations have high frequency and low amplitude, causing discomfort and noise
Solution Approach 1:
The patent replaces the conventional electric motor with a voice coil actuator system that uses electromagnetic force to move a ferromagnetic core directly, eliminating the need for rotating unbalanced masses and their associated high-frequency vibrations and noise
Solution Approach 2:
The patent changes the vibration generation mechanism from rotational unbalanced mass to linear electromagnetic actuation, fundamentally altering the frequency and amplitude parameters of the generated vibrations to achieve lower frequency and higher amplitude motion
2Speed
If loudspeaker elements are used for vibration generation, then vibrations are produced, but the frequency is relatively high with minimum stroke in the cylinder axis direction
Solution Approach 1:
The patent replaces loudspeaker elements with a voice coil and ferromagnetic core assembly that is specifically designed to produce linear motion along the cylinder axis, enabling controlled stroke amplitude in the desired direction
Solution Approach 2:
The patent transitions from the radial vibration pattern typical of loudspeakers to linear axial motion of the ferromagnetic core, changing the dimension of vibration from radial to longitudinal along the cylinder axis
3Ease of operation
If foam materials or springs are used as impact elements to dampen core movements, then comfort is improved, but they break down at high vibration amplitudes causing impacts and noise
Solution Approach 1:
The patent replaces mechanical impact elements like foam and springs with a magnetic field-based cushioning system using end magnets with identical polarity to the core, providing contactless damping that eliminates wear and breakdown
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the core and the end magnets, using magnetic repulsion forces to cushion the core's movement at the extremes of its stroke without physical contact or material degradation
4Power
If conventional vibration generation systems are used, then vibrations are produced, but energy consumption is excessive and device length is increased
Solution Approach 1:
The patent replaces energy-intensive rotating motor systems with a more efficient electromagnetic voice coil system that directly converts electrical energy to linear motion, reducing overall energy consumption while maintaining vibration output
Solution Approach 2:
The patent removes unnecessary mechanical transmission components and intermediate mechanisms from the vibration generation system, extracting only the essential electromagnetic actuation elements to reduce both energy loss and device length
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 solution achieves vibrations with high amplitude and low frequency, improving comfort and noise behavior, reducing energy consumption, and maintaining a consistent massage effect over the device's lifespan.
Implementation Method 1
the means for generating mechanical vibrations including at least one coil element and at least one ferromagnetic core arranged parallelly or coaxially with respect to the coil element
Implementation Method 2
the impact elements are formed as end magnets, wherein the ends of the end magnets respectively facing the ends of the core have a magnetic polarity, which is identical to the polarity of the respectively facing ends of the core
Data Source
AI summary
The massaging device includes electromechanical means, for generating mechanical vibrations, in a housing, electronic means for controlling the electromechanical means, and a power source connected to the electromechanical and electronic means. The electromechanical means includes a cylinder element, in which a core is guided in parallel to a cylinder element axis (Z2), in particular, coaxial with respect to the cylinder element axis (Z2), at least one coil element, the coil axis (Z3) of which is arranged coaxially with respect to the cylinder element, and which encloses the cylinder element, and one impact element arranged at each end of the cylinder element and in the interior thereof, characterized in that the impact elements are formed as end magnets, wherein the ends of the end magnets respectively facing the ends of the core have a magnetic polarity which is identical to the polarity of the respectively facing ends of the core.