Rechargeable Massager with Seamless Elastomeric Waterproofing
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Solution Overview
Problem
Existing personal massagers face issues with limited operational time, inconvenience, environmental impact, and safety concerns due to battery replacement, as well as challenges with waterproofing and user customization, particularly in providing effective and safe use in damp environments.
Innovation Solution
A rechargeable personal massager with a seamless, omnidirectional design featuring a housing with smooth continuous surfaces, dual motors, and a rechargeable battery, utilizing an elastomeric outer layer for waterproofing and a magnetic charging system that ensures secure and hygienic charging, allowing for induction charging and user-friendly operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If disposable batteries are used in personal massagers, then the device can operate for a limited period, but battery replacement is required which causes inconvenience, expense, and environmental impact
Solution Approach 1:
The massager is equipped with a rechargeable battery that can be recharged multiple times through a charging port, eliminating the need for battery replacement. The device serves itself by allowing users to recharge the battery in-place without disassembly or external intervention, resolving the contradiction between operational duration and ease of operation.
2Reliability
If a charging plug seal is added to waterproof the massager, then waterproofing is improved, but the seal collects unsanitary residue and is difficult to clean
Solution Approach 1:
The charging port is designed with a flush-mounted configuration where the charging contacts are recessed into the housing and covered by a seamless elastomeric surface. This extraction of the charging port from the external surface allows the entire outer surface to be smooth and continuous, eliminating crevices where residue could accumulate while maintaining waterproof integrity through the elastomeric material.
3Ease of operation
If metal connectors and receptacles are used for charging, then electrical connection is established, but they are subject to corrosion and difficult to waterproof reliably
Solution Approach 1:
A seamless elastomeric outer layer covers the entire massager surface including the charging port area. This flexible elastomeric film provides waterproof protection while allowing the charging contacts to remain accessible through the material or via a flush-mounted opening, eliminating the need for separate metal seals and receptacles that are prone to corrosion and waterproofing failures.
4Reliability
If the massager is made waterproof with o-rings and seals, then it can be used in damp conditions, but it is at best splash-proof and not submersible
Solution Approach 1:
The massager incorporates a seamless elastomeric outer layer that provides superior waterproofing compared to traditional o-ring seals. This elastomeric material creates a continuous waterproof barrier across all surfaces including the charging port, enabling the device to be fully submersible while maintaining structural integrity and functionality, thus upgrading from splash-proof to submersible capability.
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 provides extended operational time, improved safety, enhanced waterproofing, and user customization, enabling safe and effective use in damp conditions while eliminating the need for battery replacement and reducing environmental impact.
Implementation Method 1
a magnetic charging system that ensures secure and hygienic charging
Data Source
AI summary
A personal massage device is disclosed. The massage device includes a housing having an exterior surface defining first and second oppositely-disposed operative ends and an interior surface defining a cavity. Each of the operative ends includes a substantially smooth and continuous surface thereon. The massage device further includes a first motor disposed within the housing and adapted for creating vibration and a battery disposed within the housing and adapted to power the first motor.