Integral LED Fixture for Incandescent Socket

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Solution Overview

Problem

There is a lack of low-profile, compact, and easy-to-install LED light fixtures that can be mounted in incandescent bulb sockets or attached to junction boxes, providing adequate illumination without the need for additional wiring or bulky heat sinks, and which comply with accessibility standards.

Innovation Solution

An integral LED light fixture with a telescoping design that includes a housing base with a screw-in portion for incandescent sockets, a driver for voltage conversion, and a printed circuit board with LEDs, allowing for compact installation in both sockets and junction boxes, along with a removable lens and a flush rim for mechanical support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If LED bulbs are used to reduce power consumption and increase lifespan, then energy efficiency and durability are improved, but the fixture size increases due to heat spread and heat sink requirements

Engineering Contradiction:
Improvepower consumptionVSAvoidfixture size
Core Design Contradiction:
Use of energy by moving objectVSVolume of moving object

Solution Approach 1:

The driver circuit is positioned inside the Edison receptacle socket, nesting components within existing spaces. The heat sink is integrated into the socket structure itself rather than being a separate external component, allowing the LED fixture to fit within standard socket dimensions while maintaining proper thermal management

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The heat sink function is merged with the socket structure, combining thermal management with mechanical support. The driver circuit is combined with the socket assembly, integrating power conversion functionality into the existing receptacle rather than requiring separate housing

Inventive Principle:
Principle #5Merging (Combining)

2Use of energy by moving object

If LED bulbs are used to reduce power consumption, then energy efficiency is improved, but device complexity increases due to requirement for electronic current conversion

Engineering Contradiction:
Improvepower consumptionVSAvoidelectronic conversion requirement
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The driver circuit acts as an intermediary device that converts AC to DC and regulates power to the LEDs. By positioning this intermediary component within the existing socket, the patent simplifies installation by eliminating the need for separate external drivers or complex wiring modifications

Inventive Principle:
Principle #24Intermediary (Mediator)

3Volume of moving object

If compact LED fixtures are designed to reduce size, then fixture volume is reduced, but adaptability decreases for mounting in incandescent sockets

Engineering Contradiction:
Improvefixture sizeVSAvoidcompatibility with incandescent receptacles
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The fixture is designed with a universal Edison screw base that allows it to be installed in standard incandescent sockets. The integrated socket design provides both mechanical mounting and electrical connection functionality, enabling the LED fixture to replace traditional incandescent bulbs in existing fixtures without requiring separate mounting hardware or wiring modifications

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

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

The solution provides a compact, efficient, and accessible LED lighting solution that meets Americans with Disabilities Act requirements, offering uniform illumination with lower power consumption and longer lifespan, while eliminating the need for separate heat spreaders and simplifying installation.

Implementation Method 1

since most LED bulbs are operated using direct current circuits, there is therefore a requirement for an electronic device for converting alternating electric current to direct electric current

Methodology Applied
Scientific EffectAlternating current to direct current conversion:

Implementation Method 2

the fixture in which one or more LED bulbs are incorporated tend to be rather large and cumbersome, in part due to the requirement that many LED light fixtures must have a heat spread and a heat sink, since the temperature resulting from the usage of LED bulbs is significant

Methodology Applied
Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentUS9541270B2Integral LED light fixture
Publication Date: 2017.01.10 ETI SOLID STATE LIGHTING INC
  • US9541270B2 patent drawing
  • US9541270B2 patent drawing
  • US9541270B2 patent drawing

AI summary

An integral LED light fixture for installation in an incandescent light bulb socket includes a housing with a forwardly-extending portion and peripheral outer walls defining a recess, a rearwardly-extending socket base to be screwed into an incandescent light bulb socket, electrical components having an LED driver component, a driver cover and a printed circuit board having a set of LED bulbs and an orifice for receiving the central portion of the housing, which are nested into a compact set of electrical components, and a lens for covering the printed circuit board and being attached to the housing. The integral LED flight fixture cover can also be installed in a junction box. An AC version is also provided which lacks the driver component and the driver cover.