Round Metal Lighting Housing With Integrated Junction Box

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Solution Overview

Problem

Conventional recessed lighting systems have multiple housings, leading to increased manufacturing time and cost, bulkiness, installation challenges, and complex wiring access issues, with polygonal housings requiring larger drywall openings and additional fire-rated enclosures.

Innovation Solution

A single, round-shaped metallic housing integrates can housing and junction box functions, featuring separately fabricated sidewall and top components with integrated structural features, allowing for easier installation and reduced component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional housing assemblies use multiple housings (can housing, junction box, frame), then each component can be optimized for its specific function, but the overall assembly becomes bulky, increases manufacturing time and cost, and complicates installation

Engineering Contradiction:
Improvefunctional optimizationVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the can housing and junction box into a single integrated housing assembly. The housing includes a can portion for mounting the lighting module and a junction box portion for electrical connections, eliminating the need for separate housings and reducing overall complexity while maintaining functional optimization.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated housing serves multiple functions simultaneously: it provides structural support for the lighting module, contains the electrical junction box, offers mounting surfaces for both the lighting module and electrical connections, and facilitates installation through integrated features. This multi-functionality reduces the number of separate components needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conventional housing assemblies use multiple housings, then specific functions are optimized, but manufacturing time and cost increase

Engineering Contradiction:
Improvefunctional optimizationVSAvoidmanufacturing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The can housing and junction box are merged into a single integrated housing that can be manufactured as one piece or pre-assembled unit. This reduces the number of manufacturing steps, assembly operations, and quality checks needed compared to producing and assembling multiple separate housings.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

While integrating functions, the housing is segmented into distinct portions (can portion and junction box portion) that can be separately fabricated and then joined. This allows each portion to be optimized for its specific manufacturing process while still achieving overall integration, balancing functional optimization with manufacturing efficiency.

Inventive Principle:
Principle #1Segmentation

3Reliability

If conventional housing assemblies use multiple housings, then functional requirements are met, but the assembly becomes bulky and difficult to handle during installation

Engineering Contradiction:
Improvefunctional requirementsVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The integrated housing combines multiple functional components into a single compact unit that is easier to handle, transport, and install. The unified structure eliminates gaps and alignment issues between separate housings, making the installation process simpler and more straightforward.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting module and electrical connections are nested within the integrated housing structure, with the junction box portion containing electrical components and the can portion providing structural support. This nested arrangement creates a compact, space-efficient design that is easier to install in confined ceiling spaces.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Reliability

If conventional housing assemblies separate electrical wiring connections from the light source, then electrical safety is improved, but maintenance becomes more challenging due to blocked access

Engineering Contradiction:
Improveelectrical safetyVSAvoidmaintenance access
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The housing integrates the junction box portion with the can housing while providing separate access points. The junction box portion includes knockouts and openings that allow electrical connections to be accessed and maintained without removing the entire housing or disturbing the lighting module, maintaining both electrical safety and maintenance accessibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing is segmented into accessible portions, with the junction box portion featuring knockouts and openings that provide direct access to electrical connections. This segmentation allows maintenance personnel to access electrical components independently without disturbing the lighting module or compromising electrical safety separations.

Inventive Principle:
Principle #1Segmentation

5Ease of manufacture

If polygonal housings are used, then structural features can be integrated, but larger drywall openings are required

Engineering Contradiction:
Improvestructural feature integrationVSAvoiddrywall opening size
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The housing employs a rounded, curved design rather than sharp polygonal corners. This curvature allows the housing to fit through smaller, circular or oval drywall openings more easily while still providing sufficient surface area for integrating structural features and mounting surfaces. The rounded shape optimizes the ratio of internal volume to external footprint.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS20250389407A1Round metal housing for a lighting system
Publication Date: 2025.12.25 DMF INC
  • US20250389407A1 patent drawing
  • US20250389407A1 patent drawing
  • US20250389407A1 patent drawing

AI summary

A housing assembly for a lighting system includes a single metal housing that functions as a can housing and a junction box and has a round geometry to improve ease of installation and support trims with smaller flanges. The housing includes a top component and one or more sidewall components. The sidewall component defines the desired round shape of the housing while the top component provides one or more flat surfaces to support one or more knockout features. For a remodel installation, the housing assembly further includes a spring clip assembly with a mounting ring and multiple spring clamps to securely couple the housing assembly to a drywall panel of a ceiling. For a new construction installation, the housing assembly further includes a bar hanger assembly to couple the housing to one or more support structures within the ceiling.