Flat Wall Switch Assembly With Dust-Sealing State Indicator
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Solution Overview
Problem
Flat wall switches often have large gaps that allow dust and debris to accumulate, reducing their reliability, and lack visual cues to indicate their current state, making it difficult for users to determine whether they are in the ON or OFF position.
Innovation Solution
The design incorporates a rocker actuator with a lateral bias member, such as springs, that moves the push panel between distinct positions, and a rocker flag that moves between visible and non-visible positions through an aperture, providing a visual indication of the switch's state, while also preventing dust and debris from entering the switch mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If flat wall switches are designed with a flat push panel, then the switch has a simple and modern appearance, but large gaps allow dust and debris to accumulate behind the push panel and into the switch mechanism
Solution Approach 1:
The push panel is segmented from the switch mechanism body, allowing it to be pushed inward independently while maintaining a flat appearance. This segmentation enables the push panel to be separated from the internal mechanism, preventing dust accumulation while preserving the modern flat design aesthetic.
Solution Approach 2:
A push panel is introduced as an intermediary element between the user and the switch mechanism. This intermediary component can be pushed inward to actuate the switch while maintaining a flat appearance, and its movement controls the internal rocker mechanism without exposing gaps to the environment.
2Device complexity
If the push panel assumes an identical neutral position in both ON and OFF states, then the design is simple, but there are no visual cues to indicate the current state of the switch
Solution Approach 1:
A rocker flag with contrasting color is positioned behind the push panel and visible through an aperture. This color element changes position between ON and OFF states, providing clear visual indication of the switch state while maintaining the simplicity of the flat push panel design.
Solution Approach 2:
A rocker flag is introduced as a visual intermediary element that translates the internal rocker mechanism position into a visible indicator through the aperture. This mediator component communicates the switch state to the user without requiring the push panel itself to change position or appearance.
3Reliability
If barriers are added to prevent dust and debris entry, then reliability improves, but the device complexity increases
Solution Approach 1:
The push panel is designed to be dynamic rather than static, allowing it to be pushed inward during operation. This dynamic movement creates a sealing effect that prevents dust and debris from entering the switch mechanism, eliminating the need for additional static barriers or seals that would increase complexity.
Solution Approach 2:
The push panel itself serves the dual function of both actuating the switch and preventing dust entry. By designing the push panel to move inward during operation, it automatically creates a seal against the switch mechanism body, making the dust prevention function self-generated without requiring separate barrier components.
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 configuration enhances the reliability of flat wall switches by preventing dust and debris accumulation and provides a clear visual cue for the user to determine the switch's state, improving usability and longevity.
Implementation Method 1
the push panel bias may be provided by one or more springs
Implementation Method 2
the lateral bias member may include one or more springs
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
A switch having a push panel, a rocker, and a rocker actuator that actuates the rocker each time the push panel is pushed by a user. The switch includes a conductive switch member, that is toggled by the rocker, to connect and disconnect a first terminal from a second terminal. The switch is constructed to help reduce dust and debris from entering into the wall switch, and the switch may provide a visual cue to indicate a current ON/OFF state of the switch.