Rotating Outdoor Controller Mount for Weatherproof Socket Sealing
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Solution Overview
Problem
The installation of external controllers onto outdoor electrical devices is cumbersome and prone to failure due to the need for precise alignment and compression of sealing rings, which is difficult at heights and results in a high failure rate and limited material choices for gaskets, compromising weatherproofing.
Innovation Solution
A controller design with an outer body rotationally mounted around an inner body, allowing the gasket to compress after pin insertion, reducing the required compression range and enabling the use of more materials like silicone or EPDM, and incorporating a snap fitting for additional friction to simplify installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing ring is compressed against the socket surface during installation, then a weatherproof seal is established, but the installation becomes cumbersome and prone to failure due to the need for precise alignment and compression
Solution Approach 1:
The controller is divided into an inner body (housing control circuitry) and an outer body (rotatably mounted), with the sealing ring positioned on the outer body. This segmentation allows the sealing function to be separated from the electrical connection function, enabling the sealing ring to be compressed independently through rotation of the outer body rather than requiring precise alignment during initial installation.
Solution Approach 2:
The electrical connection pins are inserted into the socket slots and engaged with the clamps first, establishing the electrical connection before the sealing ring is compressed. This preliminary action allows the mechanical connection to be established without the complexity of simultaneously achieving precise alignment for both electrical and sealing functions.
Solution Approach 3:
The outer body is designed to rotate relative to the inner body, transforming the static sealing ring compression into a dynamic process. The rotation of the outer body brings the sealing ring into contact with the socket surface and applies compression, allowing the sealing action to occur after the controller is already positioned and electrically connected.
2Reliability
If a large compression range is required for the sealing ring, then a weatherproof seal can be established, but the choice of gasket materials is limited
Solution Approach 1:
The rotatable outer body provides a controlled, progressive compression mechanism that applies force over a limited range of motion. This dynamic approach allows the sealing ring to be compressed effectively without requiring a large compression range, enabling the use of materials like silicone or EPDM that have lower compressibility thresholds.
Solution Approach 2:
The compression force is applied through rotational displacement of the outer body rather than linear compression, changing the parameter of compression application. This allows effective sealing with materials that require smaller compression distances, expanding material selection beyond what would be possible with traditional linear compression methods.
3Adaptability or versatility
If the controller is installed at height, then outdoor functionality is achieved, but the installation becomes more difficult due to the need for precise alignment and compression
Solution Approach 1:
By separating the electrical connection function (inner body with pins) from the sealing function (outer body with sealing ring), the installation process can be performed in two simple steps: first insert the pins into the socket, then rotate the outer body to compress the seal. This eliminates the need for complex simultaneous alignment required at height.
Solution Approach 2:
The controller is lowered onto the socket with the pins already positioned for insertion, and the sealing ring is not yet compressed. This preliminary positioning allows the installer to work from a stable position without needing to maintain precise alignment while applying compression force at height.
4Reliability
If the sealing ring is compressed during pin insertion, then the weatherproof seal is established, but the installation process becomes cumbersome
Solution Approach 1:
The controller structure separates the inner body containing the electrical pins from the outer body containing the sealing ring. This allows the sealing compression to be decoupled from the pin insertion process, reducing installation complexity by enabling sequential rather than simultaneous actions.
Solution Approach 2:
The rotatable outer body provides a simple mechanical mechanism for compressing the sealing ring after the controller is positioned. This dynamic element adds only one degree of freedom (rotation) to the installation process, making it more intuitive and less complex than attempting to achieve precise alignment and compression simultaneously.
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
This design simplifies the installation process, reduces the failure rate of the weatherproof seal, and allows for a wider range of gasket materials, enhancing the reliability and ease of installation of outdoor electrical device controllers.
Implementation Method 1
the annular compressible gasket does not touch the socket upon engagement of the controller with the socket... rotating the outer body relative to the inner body towards the socket to establish a weatherproof seal between the outer body and the socket by compressing the annular compressible gasket against said socket
Implementation Method 2
incorporating a snap fitting for additional friction to simplify installation
Data Source
AI summary
A controller (100) for mounting onto a socket (20) of an outdoor device (10) is disclosed. The controller comprises an inner body (110) comprising a first bottom surface from which an annular arrangement of electrical connection pins (102) for engaging with said socket extends, said inner body further housing control circuitry (132) for said outdoor device, said control circuitry being electrically connected to at least some of said electrical connection pins; and an outer body (120) rotationally mounted around the inner body, the outer body comprising a further bottom surface (122) around the first bottom surface and an outer cover (105) extending from said further bottom plate covering the control circuitry, the further bottom surface carrying an annular compressible gasket (104) for providing a weatherproof seal between the further bottom surface and the socket by rotational displacement of the outer body relative to the inner body. Also disclosed is an outdoor electrical device (10) comprising such a controller (100) and method of mounting such a controller (100) onto an outdoor electrical device (100).