Waterproof Stimulation Device Pressure Balance Mechanism

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Solution Overview

Problem

Waterproof sexual stimulation devices face challenges in maintaining internal pressure balance without compromising waterproofing, as air holes or valves can lead to water ingress and contamination of sensitive components.

Innovation Solution

A closed-system pressure balancing mechanism using an active stretchable seal and a passive stretchable element, where the pressure pathway allows for dynamic pressure balance within the device, with a vent system that prevents water from entering the internal components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stress or pressure

If air holes or valves are used to balance pressure, then pressure balance is achieved, but waterproofing is compromised and water can enter the device

Engineering Contradiction:

Improvepressure balanceVSAvoidwaterproofing

Core Design Contradiction:

Stress or pressureVSReliability

Solution Approach 1:

The device is divided into separate functional zones: a waterproof sealed chamber containing sensitive components and a separate pressure balancing mechanism. The stretchable seal creates a flexible barrier that segments the pressure balance function from the waterproof seal, allowing each to optimize its performance without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A stretchable seal acts as an intermediary element between the internal pressure system and the external environment. This seal allows pressure equalization while maintaining waterproofing by deforming elastically to accommodate pressure changes without creating permanent openings for water ingress.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If air holes or valves are located close to the reciprocating element, then direct air path is created, but water can be drawn into the device through these openings

Engineering Contradiction:

Improveair path efficiencyVSAvoidwater ingress

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The pressure balancing function is extracted from the reciprocating element area and relocated to a dedicated stretchable seal mechanism. This separation removes the harmful effect of water ingress by eliminating the need for air holes near the reciprocating element, while the stretchable seal provides an alternative pressure balance mechanism that does not compromise waterproofing.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The stretchable seal functions as a flexible membrane that can deform to accommodate pressure changes. This flexible film allows pressure equalization while maintaining a waterproof barrier, eliminating the need for rigid air holes or valves that would compromise waterproofing.

Inventive Principle:

Principle #30Flexible shells and thin films

3Adaptability or versatility

If the device changes volume during reciprocating motion, then stimulation function is achieved, but pressure gradient is generated that requires air holes for release

Engineering Contradiction:

Improvereciprocating motion capabilityVSAvoidpressure management system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The stretchable seal provides self-regulating pressure balance through its elastic deformation. As the reciprocating element changes volume, the seal automatically deforms to accommodate the pressure changes without requiring external valves or air holes, simplifying the overall pressure management system while maintaining waterproofing.

Inventive Principle:

Principle #25Self-service

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 solution maintains the device's waterproof integrity while balancing internal pressure, preventing water from contaminating sensitive components and ensuring smooth operation.

Implementation Method 1

a passive stretchable element. The passive stretchable element is configured to deform passively due to the deformation of the active stretchable seal, thereby resulting in the dynamic balance of air pressure in an enclosed space at least defined by the passive stretchable element and the active stretchable seal

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

A pressure pathway carries the pressure created by the active stretchable seal to the passive stretchable element such that the total pressure within the active stretchable seal, passive stretchable element, and the pressure pathway stays relatively stable as the active stretchable seal moves

Methodology Applied

Scientific EffectPressure Gradient: Pressure Gradient

Data Source

PatentUS12036172B1Waterproof stimulation device with closed-system pressure balance

Publication Date: 2024.07.16 HYTTO PTE LTD

AI summary

A sexual stimulation device includes a housing, a drive unit at least partially disposed within the housing, a first stimulation element directly or indirectly coupled with the drive unit and driven by the drive unit to generate a movement, the movement configured to stimulate a sensitive area of a human body, an active stretchable seal configured to dynamically seal a relative movement part between the housing and the first stimulation element or the drive unit with respect to the housing, and to deform with the movement of the first stimulation element, and a passive stretchable element. The passive stretchable element is configured to deform passively due to the deformation of the active stretchable seal, thereby resulting in the dynamic balance of air pressure in an enclosed space at least defined by the passive stretchable element and the active stretchable seal.