Magnetic Switch Module Assembly for Shallow Junction Boxes
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Solution Overview
Problem
Existing functional modules for building installation technology suffer from impaired magnetic communication quality due to vibrations, leading to incorrect operations, and require significant installation space and effort, making them unsuitable for flat installation boxes.
Innovation Solution
A functional module with a housing that includes recesses engaging with the switching device's projections, reducing installation depth and ensuring position fixation, thus improving mechanical shock reliability and installation ease by eliminating the need for floating cabling and optimizing magnetic field detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the functional module is mounted behind the switching device in the installation box, then the magnetic communication between the magnet and sensor can be established, but the module shifts due to vibrations leading to incorrect actuation
Solution Approach 1:
The housing is provided with fixing elements (protrusions or clips) that preliminarily secure the functional module to the switching device before final installation. This preliminary mechanical coupling prevents the module from shifting during subsequent vibrations, thereby maintaining reliable magnetic communication while eliminating vibration-induced incorrect actuation.
2Ease of operation
If the functional module is positioned anywhere within the installation box, then installation flexibility is achieved, but the signal-to-noise ratio for magnetic communication is neither standardized nor optimized
Solution Approach 1:
The switching device is designed with universal fixing elements (protrusions or engagement structures) that accommodate the functional module in a specific optimized position. This universal coupling mechanism ensures that regardless of installation variations, the module always achieves the optimal signal-to-noise ratio for magnetic communication while maintaining ease of installation through standardized interfaces.
3Ease of manufacture
If the functional module is inserted into the installation box first, then the switching device can be attached subsequently, but the module is pushed out due to cable mechanical stress
Solution Approach 1:
The functional module is mechanically merged with the switching device through fixing elements (protrusions, clips, or engagement structures) that couple the two components together. This merging ensures that when the switching device is attached to the installation box, the functional module is securely held in place and cannot be pushed out by cable mechanical stress, thereby maintaining both installation ease and reliability.
4Reliability
If conventional functional modules without magnetic sensing are used, then cable connections between switching device and functional module are required, but the installation effort with regard to cabling is significantly increased
Solution Approach 1:
The patent replaces the mechanical cable connection system with a magnetic field-based communication system. A magnet on the switching device interacts with a magnetic sensor in the functional module, eliminating the need for cable connections between the two components. This substitution maintains reliable signal transmission while dramatically reducing installation complexity and cabling requirements.
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 effectively reduces installation space requirements, enhances operational reliability against vibrations, and simplifies the installation process by fixing the module in place, ensuring accurate actuation detection and reduced installation complexity.
Implementation Method 1
the functional module has a sensor for detecting the magnetic field, so that the change in the magnetic field is detected upon actuation of the actuating element
Data Source
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AI summary
To propose a functional module F for installation in a junction box D with a manually operated switching device S, thereby reducing the required installation height and effectively improving the reliability of operation against mechanical vibrations, a functional module F is presented which can be influenced by the actuation of an actuating element B of a top part O connected to the switching device S, wherein the functional module F has at least one interface by means of which at least one actuator can be controlled according to an actuation of the actuating element B, wherein at least one magnet M is arranged on the switching device S which changes its position when the actuating element B is actuated, and wherein the functional module F has a sensor for detecting the magnetic field so that the change in the magnetic field when the actuating element B is actuated.wherein the functional module F comprises an evaluation unit for evaluating the magnetic field change. The functional module F is characterized in that it has a housing G which has an interface with connections, wherein the housing G has at least one recess X which engages with projections HV of the switching device S, so that the effective installation depth T of the functional module in the junction box behind the switching device S is reduced and the functional module F is fixed in position.