Adaptive Pressure Balancer for Diving Enclosures
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Solution Overview
Problem
Ancillary diving equipment, such as cameras and communication devices, are limited by their maximum acceptable depth and are often expensive due to the need for heavy, costly metal-reinforced enclosures to withstand pressure, and existing solutions do not allow for easy access to touch screens underwater.
Innovation Solution
A pressure balancing apparatus with a waterproof enclosure and a balancing module that adjusts pressure within the enclosure to maintain a differential pressure above a threshold during descent and below during ascent, using a valve actuator and module valve system, allowing for a range of diving depths and enabling touch screen access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal-reinforced enclosures are used to withstand pressure at greater depths, then the strength and pressure resistance are improved, but the weight and cost increase significantly
Solution Approach 1:
The pressure management system is divided into separate functional components: a balancing module with valve actuator, a pressure source (CO2 cartridge), and the enclosure chamber. This segmentation allows the enclosure to remain lightweight while the external balancing module handles pressure regulation, resolving the contradiction between pressure resistance and weight.
Solution Approach 2:
A balancing module serves as an intermediary device between the external environment and the enclosure interior. It uses a valve actuator member responsive to differential pressure to control gas flow from the pressure source into the enclosure, enabling pressure management without requiring the enclosure itself to be heavily reinforced.
2Strength
If thick-walled enclosures are used for greater dive depths, then the pressure resistance is improved, but the cost and weight increase
Solution Approach 1:
The pressure resistance function is extracted from the enclosure structure itself and placed into a separate external balancing module. This allows the enclosure to be manufactured as a simple, lightweight chamber while the complex pressure management components are housed externally, reducing manufacturing costs and simplifying production.
Solution Approach 2:
The system uses a disposable CO2 cartridge as the pressure source, which can be easily replaced when depleted. This inexpensive consumable component provides the necessary pressure without requiring expensive, permanently reinforced enclosure structures, making the overall system more cost-effective.
3Adaptability or versatility
If pressure balancing is implemented to enable deeper diving, then the depth range is improved, but the device complexity increases
Solution Approach 1:
The valve actuator member is designed to automatically respond to differential pressure changes between the external environment and the enclosure interior. This self-actuating mechanism eliminates the need for complex electronic sensors, control circuits, and power sources, achieving automatic pressure balancing with minimal device complexity while expanding the usable depth range.
4Ease of operation
If clear membrane walls are used to enable touch screen access, then the ease of operation is improved, but the pressure resistance capability is reduced
Solution Approach 1:
The clear membrane wall acts as an intermediary that transmits touch forces from the user's finger through the enclosure wall to the touch screen interface. Combined with the external pressure balancing system, this allows the membrane to remain thin and transparent for ease of operation while the balancing module maintains the necessary pressure differential to protect internal components.
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
Enables the use of electronic devices at various diving depths without the need for expensive, heavy enclosures, maintaining pressure within a safe range to protect equipment and allow underwater touch screen interaction.
Implementation Method 1
the valve actuator member is configured to move in response to changes in differential pressure between a pressure in the enclosure chamber and pressure from the outside
Implementation Method 2
attaching the valve actuator member, to the balancing mechanism housing via a first and a second flexible diaphragm
Data Source
AI summary
Pressure balancing apparatuses and methods disclosed here include embodiments with a waterproof enclosure having walls surrounding an interior chamber, a mounting interface mounted to the enclosure with a port to an outside, and a balancing module, connected to the mounting interface, the balancing module including, a balancing module housing, a valve actuator member inside the balancing module housing, with a receptacle for a pressure source. In certain embodiments the valve actuator member is configured to move in response to changes in differential pressure between a pressure in the enclosure chamber and pressure from the outside, and a module valve, inside the balancing module housing, connected to the valve actuator member, and fluidically separating the enclosure chamber from the port to the outside, wherein the module valve is configured to open and close in response to the movement of the valve actuator member.