Modular Electrical Fixture With Rotatable Holders
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Solution Overview
Problem
Existing enclosures for electrical and electronic devices lack a secure, versatile, and weather-resistant solution that can be easily installed on various structures, providing long-duration protection against environmental conditions and allowing for flexible orientation and power connectivity.
Innovation Solution
A modular fixture with a dome-like shell and disc-shaped base, featuring a support frame with rotatable holders and electrical connectors, allowing for secure attachment to different structures, orientation control, and integration of ventilation and drainage systems to prevent moisture ingress and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixture is designed to be securely attached to various structures with different configurations, then the adaptability and versatility improve, but the device complexity increases
Solution Approach 1:
The fixture incorporates a universal mounting base with multiple attachment mechanisms that can interface with different structure types (posts, walls, ceilings). The base includes adjustable brackets and multiple connection points that allow the same fixture design to be securely installed on various structures without requiring structure-specific customizations, thereby achieving versatility without proportionally increasing complexity
Solution Approach 2:
The fixture is divided into modular components including a separate mounting base, main body housing, and interchangeable component holders. This segmentation allows the mounting base to be optimized for structural attachment while the main body remains standardized, reducing overall complexity by separating the adaptation function from the core fixture function
2Reliability
If electrical connectors are provided for secure power connection, then reliability improves, but device complexity increases
Solution Approach 1:
The electrical connector is integrated into the mounting base assembly, combining mechanical mounting functions with electrical connection functions in a single integrated component. This merging eliminates the need for separate electrical interface components and reduces the number of discrete parts, thereby improving reliability through fewer connection points while actually reducing rather than increasing device complexity
3Ease of operation
If component holders are made rotatable and removably connected, then ease of operation and maintenance improve, but device complexity increases
Solution Approach 1:
The component holders are designed with rotatable joints that allow dynamic repositioning and adjustment of component orientation. The holders can be rotated to access different angles and positions, and the rotatable connection mechanisms use simple pivot points with detent features that provide secure positioning without complex locking mechanisms, maintaining ease of operation while controlling complexity
Solution Approach 2:
The component holders are separable into individually removable units that can be detached from the main fixture body. Each holder is an independent module with simple attachment features, allowing maintenance personnel to remove and replace individual components without disassembling the entire fixture, improving accessibility while keeping each modular unit simple in design
4Object-affected harmful factors
If ventilation and drainage systems are integrated to prevent moisture ingress, then protection against environmental factors improves, but device complexity increases
Solution Approach 1:
The drainage system utilizes passive gravity-driven channels that automatically redirect condensation and moisture away from electrical components without requiring active pumping or control systems. The ventilation openings are positioned and sized to create natural convection currents that promote air circulation and moisture evacuation, providing environmental protection through passive physical principles rather than complex active systems
Solution Approach 2:
The shell structure serves multiple functions simultaneously: it provides mechanical enclosure, integrates ventilation openings for air circulation, incorporates drainage channels for moisture evacuation, and positions components for optimal thermal management. This multi-functionality achieves comprehensive environmental protection while avoiding the need for separate dedicated systems for each function, thereby controlling overall complexity
Data Source
AI summary
A fixture for holding electrical components on an external support structure protects the components from weather, dust, condensation, and mechanical impact. An example fixture includes a shell having an open bottom side; a base configured for sliding engagement with the bottom side of the shell, a first electrical connector held in a selected rotational orientation in the base; and a support frame configured for sliding engagement with the shell. The support frame includes a first component holder; a second component holder rotatably connected to the first component holder; and a third component holder rotatably connected to the second component holder and removably connected to the first component holder. An optional connector on the shell allows the fixture to be installed between a host connector and any previously-installed legacy equipment.