Submersible Audio Amplifier Waterproof Sealing and Thermal Dissipation
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Solution Overview
Problem
Existing audio equipment for recreational vehicles is not effectively waterproofed, particularly due to challenges in sealing electrical connectors, which allows water and contaminants to penetrate, compromising their functionality in wet environments.
Innovation Solution
A waterproof audio amplifier design featuring a water-tight case with internal flanges, double-sided silicone sealing tape, and elastomeric grommets to secure cables and connectors, ensuring all connection points are sealed to prevent water ingress, along with a heat-dissipating finned housing made from materials like aluminum for enhanced thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional audio equipment is used in wet environments, then the equipment can be installed and operated, but water and contaminants penetrate through electrical connectors, compromising functionality
Solution Approach 1:
The patent employs flexible waterproof membranes and sealing films over electrical connectors to prevent water ingress while maintaining electrical functionality. These flexible barriers conform to the connector geometry and maintain sealing under varying pressure conditions.
Solution Approach 2:
The patent introduces intermediary sealing components such as gaskets, O-rings, and waterproof adhesive compounds between electrical connectors and the housing to create water-tight barriers. These intermediaries fill gaps and prevent direct water contact with electrical contacts.
2Reliability
If electrical connectors are sealed to prevent water ingress, then waterproofing is improved, but the complexity of the connectorization process increases
Solution Approach 1:
The patent combines multiple sealing functions into integrated connector assemblies where the sealing elements are pre-positioned and bonded to connectors during manufacturing. This merging reduces assembly steps and simplifies installation while maintaining comprehensive waterproofing.
Solution Approach 2:
The patent applies sealing compounds and attaches sealing elements to electrical connectors during the connector manufacturing process rather than during final assembly. This preliminary action ensures waterproofing is built-in and reduces on-site assembly complexity.
3Reliability
If a waterproof case is used to protect against water, then water resistance is improved, but thermal dissipation becomes more difficult
Solution Approach 1:
The patent introduces thermal interface materials and heat transfer compounds as intermediaries between heat-generating components and the waterproof housing. These materials conduct heat efficiently through the water-resistant structure without compromising the seal.
Solution Approach 2:
The patent employs composite housing materials that combine water-resistant properties with thermal conductivity, such as aluminum alloys with corrosion-resistant coatings or composite structures with thermally conductive pathways integrated into the waterproof design.
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 a fully waterproof audio amplifier that maintains functionality underwater by effectively sealing all electrical connections and dissipating heat efficiently, addressing the issue of water penetration and thermal management, thus ensuring reliable operation in wet conditions.
Implementation Method 1
The waterproof case has a series of ridges, or fins, used to dissipate thermal energy created as the amplifier is used
Implementation Method 2
The waterproof case has a series of ridges, or fins, used to dissipate thermal energy created as the amplifier is used
Implementation Method 3
Adhering to this flange is a double-sided sticky plastic sealing tape. This sealing tape is generally silicone tape with adhesive applied to both sides
Implementation Method 4
The tape is perforated to pass screws and cables through into the interior of the waterproof case of the audio amplifier
Implementation Method 5
Molded onto each cable so that it surrounds the cable where it passes through into the interior of the audio amplifier is an elastomeric mass
Implementation Method 6
The elastomeric mass is sized such that it fits intimately inside a harness grommet
Data Source
AI summary
The present invention relates to an audio amplifier that is constructed to allow its mounting and use underwater. The invention has a water impervious case and has waterproof electrical contacts for power, audio, and control.