Lighting Fixture Mounting Bracket for Surface and Recessed Configurations
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Solution Overview
Problem
Existing lighting fixtures struggle to accommodate both surface-mounted and recessed configurations, particularly in exposed or industrial ceilings where recessed options are not practical, leading to inconsistent appearance and size issues.
Innovation Solution
A ceiling-mounted lighting fixture design that includes a mounting bracket, upper housing, lighting element, optical reflector, and lower housing, which can be configured for both surface-mount and recess-mount setups, maintaining the same size and appearance by adjusting the length of the mounting bracket and using cutouts and keys to accommodate various conduit configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lighting fixture is designed for recessed mounting only, then it achieves a clean concealed appearance, but it cannot be used in exposed ceiling configurations where recessed mounting is not practical
Solution Approach 1:
The lighting fixture is designed with a universal mounting system that can accommodate both recessed and surface-mounted configurations using the same fixture body. The fixture includes a mounting bracket with adjustable positioning mechanisms that allow it to be installed in either configuration without requiring different fixture designs, thereby achieving multi-functionality and versatility across different ceiling types.
Solution Approach 2:
The mounting system is segmented into separate components including a mounting bracket, positioning elements, and the main fixture body. This segmentation allows the mounting components to be independently adjusted or removed, enabling the same fixture to be adapted for different mounting configurations (recessed or surface-mounted) by simply reconfiguring the mounting components rather than changing the entire fixture.
2Adaptability or versatility
If the fixture is designed to accommodate both surface-mount and recess-mount configurations, then versatility is improved, but the appearance and size may vary between configurations
Solution Approach 1:
The mounting bracket incorporates local quality variations with different portions designed for specific functions: one side features a flange for surface-mounted junction boxes while another portion accommodates recessed mounting. These localized design variations allow the same fixture to adapt to different mounting configurations while maintaining overall appearance consistency, as the variations are confined to the mounting interface rather than affecting the visible fixture body.
3Device complexity
If a single mounting bracket design is used for both surface-mount and recess-mount configurations, then device complexity is reduced, but proper positioning and alignment become difficult to achieve
Solution Approach 1:
The mounting bracket incorporates dynamic positioning elements such as adjustable legs or arms that can be extended or repositioned to accommodate different mounting depths. This dynamic capability allows a single bracket design to properly position the fixture in both surface-mount and recess-mount configurations, achieving precise alignment without requiring multiple specialized bracket designs.
Solution Approach 2:
The mounting bracket serves as an intermediary component between the fixed fixture body and the variable mounting environments (surface or recessed). It includes intermediate adjustment mechanisms that mediate between the two configuration types, allowing proper positioning and alignment to be achieved through the bracket's adjustable features rather than through complex fixture redesign.
Data Source
AI summary
A light fixture having an upper and lower housing, and a mounting bracket adapted to mount to a junction box. The light fixture has a relatively short mounting bracket for surface mount configurations, and a relatively long mounting bracket for recess mount configurations, and a difference in the height of the long and short mounting brackets is equal to the height of the junction box. In the surface-mount and recess-mount configurations a circumferential edge of the upper housing abuts the mounting surface so the lighting fixture has the same external appearance and size in both configurations. The light fixture also has a pendant mode wherein the upper housing is suspended from the junction box by an elongated support. An enclosure for the junction box has a plurality of cut-outs and covers to accommodate various configurations of surface mounted conduit.