Rotatable Light Fixture Power Switch With Anti-Tangle Stop
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Solution Overview
Problem
Conventional power switches for light fixtures have fixed relative positions, limiting the adjustability of illumination direction and potentially causing tangled wires due to excessive rotation.
Innovation Solution
A power switch design featuring a housing assembly with an annular accommodating groove and a connection assembly including a rotatable connecting element and outer collar, allowing adjustable positions between the power switch and light fixture, with limiting portions to restrict excessive rotation and prevent wire tangling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power switch is fixed in a rail structure with a conductive copper piece, then the relative positions of the power switch, rail structure and light fixture are fixed, but the illumination direction of the light fixture becomes invariable and cannot illuminate dark areas
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed connection between the power switch and light fixture into a rotatable connection. The connection assembly includes a connecting element with an annular portion that can rotate relative to the housing assembly, allowing the light fixture to be adjusted to different illumination directions while maintaining electrical connection. This resolves the contradiction by enabling dynamic position adjustment without requiring complex mechanical structures.
Solution Approach 2:
The patent segments the connection system into distinct functional components: the housing assembly containing the power switch, the connection assembly with the connecting element, and the light fixture. The connecting element is further segmented into a rotatable annular portion and a limiting portion. This segmentation allows independent optimization of each component, enabling rotation functionality while keeping the overall structure simple and manageable.
2Adaptability or versatility
If the light fixture is made rotatable to adjust illumination direction, then the illumination direction becomes adjustable, but excessive rotation may cause wire tangling
Solution Approach 1:
The patent applies preliminary anti-action by incorporating a limiting portion on the connecting element that prevents excessive rotation before wire tangling can occur. The limiting portion engages with the housing assembly to establish a predetermined rotation range, thereby preemptively counteracting the potential harmful effect of over-rotation and wire entanglement while preserving the beneficial illumination adjustment capability.
3Adaptability or versatility
If a rotatable connection assembly is introduced to enable position adjustment, then relative positions become adjustable, but the device complexity increases
Solution Approach 1:
The patent applies local quality by concentrating the rotation functionality into a localized annular portion of the connecting element, rather than redesigning the entire connection system. The annular portion provides the necessary rotational degrees of freedom while maintaining a simple overall structure. The limiting portion is also locally integrated into the connecting element, adding minimal complexity only where needed to prevent over-rotation.
Data Source
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AI summary
A power switch (1) is applied to a light fixture. The power switch (1) includes a housing assembly (10), a switch structure (20) and a connection assembly (30). The housing assembly (10) includes an annular accommodating groove (11). The switch structure (20) is disposed in the housing assembly (10). The connection assembly (30) is disposed at the annular accommodating groove (11) and includes a connecting element (31) and an outer collar (32). The connecting element (31) is connected to the light fixture and has an annular portion (311). The outer collar (32) is sleeved at the annular portion (311) of the connecting element (31) and is accommodated in the annular accommodating groove (11).