General purpose enclosure
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Solution Overview
Problem
General purpose enclosures face limitations in flexibility due to single-sided mounting, high fastener counts increasing assembly time and cost, thin walls restricting airflow, and inefficient cooling fin geometries, as well as compromised seals from internal pressure fluctuations leading to contamination and premature equipment failure.
Innovation Solution
A general purpose enclosure design featuring symmetrical housings with reduced fastener counts, cross-cut straight cooling fins for enhanced heat dissipation, and integrated pressure ports with pneumatic valves and vent membranes for pressure equalization and testing, ensuring IP67 protection against dust, water, and liquids, while allowing for flexible mounting and efficient airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling fins are added to the exterior of the enclosure, then heat dissipation is improved, but the enclosure wall thickness must be increased which restricts airflow and adds material
Solution Approach 1:
The cooling fins are nested within the enclosure wall structure itself, integrated into the housing design rather than added as external protrusions. This allows the fins to be positioned inside the wall thickness, maintaining external surface smoothness while providing internal cooling functionality.
Solution Approach 2:
The cooling fins are strategically positioned in specific locations within the enclosure wall where they can maximize heat dissipation efficiency. The fin geometry and distribution are optimized for thermal performance while maintaining overall structural integrity and airflow characteristics.
2Strength
If a high fastener count is used in the enclosure, then assembly strength and seal integrity are improved, but assembly time and cost increase
Solution Approach 1:
Multiple fastening functions are merged into integrated fastener assemblies that combine sealing, fastening, and alignment features in single components. This reduces the total number of separate fasteners needed while maintaining assembly strength and seal integrity.
Solution Approach 2:
The fasteners are designed to perform multiple functions simultaneously - providing mechanical fastening, maintaining seal pressure, and facilitating alignment. This multi-functionality reduces the overall fastener count while achieving the same or better assembly performance.
3Weight of stationary object
If thin enclosure walls are used, then material cost and weight are reduced, but component clearance and thread bosses protrude to the exterior which restricts airflow
Solution Approach 1:
Thread bosses and mounting features are nested within the enclosure wall thickness rather than protruding outward. This allows thin-walled construction while maintaining adequate component clearance and preserving external surface smoothness for optimal airflow.
Solution Approach 2:
Mounting features and thread bosses are positioned in the depth dimension of the wall rather than extending in the external dimension. This relocates potential airflow obstructions into the wall thickness space, keeping the external surface aerodynamically smooth.
4Ease of manufacture
If single-sided mounting is used in the enclosure, then manufacturing complexity is reduced, but installation flexibility is limited
Solution Approach 1:
The enclosure is designed with asymmetric mounting features that enable both single-sided and dual-sided mounting configurations. Strategic placement of asymmetric fastener bosses and mounting interfaces allows the enclosure to be installed in multiple orientations and configurations without increasing manufacturing complexity.
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 complete protection against dust and water ingress, reduces assembly time and cost, enhances heat dissipation, and maintains seal integrity under pressure fluctuations, ensuring the longevity and reliability of internal electronics.
Implementation Method 1
A plurality of cooling fins and one or more pressure ports along an exterior surface of the first housing and the second housing
Implementation Method 2
Employing cooling fins to the exterior of enclosures is common within the industry
Implementation Method 3
One or more pressure ports comprising a pneumatic valve, pressure sensor cap and a vent membrane such that pressure venting, and pressure testing may be performed by the one or more pressure ports
Data Source
AI summary
A general purpose enclosure is provided. A general purpose enclosure for housing an internal unit and providing complete protection against an ingress of dust and water, comprising a first housing and a second housing. A plurality of cooling fins and one or more pressure ports along an exterior surface of the first housing and the second housing. One or more pressure ports comprising a pneumatic valve, pressure sensor cap and a vent membrane such that pressure venting, and pressure testing may be performed by the one or more pressure ports. A method of assembling a general purpose enclosure to an internal unit, comprising applying the first housing and the second housing to the internal unit such that the first housing and the second housing encompass the internal unit and fastening the first housing to the second house.