One-Piece Control Panel for Flush-Mounted Switches
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Solution Overview
Problem
The existing structure of individual, movable button surfaces in installation devices leads to uneven gap dimensions due to manufacturing and assembly tolerances, affecting the appearance and function of the buttons.
Innovation Solution
A one-piece control panel with multiple control surfaces, featuring key surface releases and indentations on the underside to reduce moment of resistance, allowing independent operation and integration with electronic micro-switches, while stiffening ribs prevent relative movement and accommodate sensitive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If individual movable button surfaces are used in installation devices, then assembly flexibility is improved, but gap dimensions become uneven due to manufacturing and assembly tolerances
Solution Approach 1:
The patent merges multiple individual button surfaces into a single one-piece control panel structure. This integration eliminates the gaps between separate components that cause uneven dimensions, while the control panel still allows independent operation of each control surface through internal release mechanisms. The one-piece design directly addresses the gap dimension issue by removing the interfaces between individual parts where tolerances accumulate.
Solution Approach 2:
While the control panel is a single piece, it incorporates segmentation through key surface releases that allow individual control surfaces to move independently. Each control surface can be actuated separately with its own release mechanism, maintaining functional independence similar to individual buttons while eliminating the structural gaps between them.
2Ease of operation
If control surfaces are made independent through key surface releases, then operational independence is improved, but structural stability deteriorates
Solution Approach 1:
The patent applies local quality by providing stiffening ribs at specific locations within the one-piece control panel structure. These ribs are strategically positioned to reinforce areas that would otherwise be weakened by the presence of key surface releases and gaps between control surfaces. The stiffening ribs maintain overall structural integrity while allowing local flexibility for independent button operation.
3Ease of operation
If indentations are added to reduce moment of resistance, then actuation ease is improved, but device complexity increases
Solution Approach 1:
The patent modifies the structural parameters of the control panel by introducing indentations that change the moment of resistance characteristics. These indentations are integrated into the one-piece molding process, so while they change the structural parameters to improve actuation, they do not require additional components or assembly steps. The complexity is managed by incorporating the feature directly into the base structure rather than adding separate elements.
Data Source
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AI summary
A control unit for a flush-mounted electrical installation device is proposed, wherein the control unit has several operating surfaces (10) on its upper side, designed as push buttons (10) or rocker switches, which allow the necessary movements of the push/switch operation and execute the movements or actuations of the individual operating surfaces (10) independently of one another. The control unit is designed as a single piece, and a push button recess (20) is located between each pair of adjacent operating surfaces 10.