Folding LED Worklight With Rotatable Panels And Retractable Hook

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Solution Overview

Problem

Conventional worklights, including incandescent, fluorescent, and LED stick lights, face issues such as instability, non-retractable hooks, limited mountability, lens damage, and focused light output, which hinder their usability and safety in various settings.

Innovation Solution

A portable worklight design featuring a center core with rotatable panels, a retractable hook, and dual LED arrays that can be mounted to multiple surfaces, providing adjustable light direction and protection for the lens.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional LED stick light is used with a fixed hook, then the light can be hung from elevated objects, but the non-retractable hook interferes with nearby objects and may be damaged during storage or use

Engineering Contradiction:
Improvehanging capabilityVSAvoidinterference with nearby objects and potential damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The hook is designed to be retractable rather than fixed, allowing it to extend when needed for hanging and retract when not in use to avoid interference and damage. This dynamic transformation resolves the contradiction between providing hanging functionality and avoiding harmful interference.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If an LED stick light has a small base for stability, then it can be compact, but it becomes unstable when placed on flat surfaces

Engineering Contradiction:
Improvecompact sizeVSAvoidstability on flat surface
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The invention transitions from a one-dimensional stick light to a two-dimensional panel structure. The panel configuration provides a larger base area for stable placement on surfaces while maintaining overall compactness through the folding mechanism. This dimensional change resolves the contradiction between compact size and surface stability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If the lens/transparent cover is exposed for light output, then the light can illuminate the work area, but the lens is vulnerable to damage during storage or use

Engineering Contradiction:
Improvelight output capabilityVSAvoidlens damage risk
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The lens or transparent cover is designed to be movable, allowing it to be positioned in front of the LED array for illumination and moved to a protected position during storage or when not in use. This dynamic positioning resolves the contradiction between providing light output and protecting the lens from damage.

Inventive Principle:
Principle #15Dynamics

4Illumination intensity

If the LED stick light focuses light in a single small area, then the light intensity is concentrated, but the light direction cannot be varied without moving the entire light stick

Engineering Contradiction:
Improveconcentrated light outputVSAvoidlight direction adjustment
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The LED array is divided into multiple independently controllable segments or groups, allowing different portions of the light array to be activated or directed toward different areas. This segmentation enables flexible light direction control without moving the entire light stick, resolving the contradiction between concentrated light output and directional flexibility.

Inventive Principle:
Principle #1Segmentation

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 design enhances stability, versatility, and safety by allowing adjustable light direction, protecting the lens, and enabling mounting to various surfaces, while reducing the risk of damage and improving usability in confined spaces.

Implementation Method 1

a first array of light emitting diodes (LEDs) is disposed along a surface of the first panel and a second array of LEDs is disposed along a surface of the second panel

Methodology Applied
Scientific EffectLight emitting diode: Light Emitting Diode

Data Source

PatentUS8303142B2Folding rechargeable worklight
Publication Date: 2012.11.06 SIGNIFY HOLDING BV
  • US8303142B2 patent drawing
  • US8303142B2 patent drawing
  • US8303142B2 patent drawing

AI summary

An LED worklight having a center core and a first panel and a second panel coupled to the center core. The first panel includes a first array of LEDs mounted to a first circuit board disposed within a first opening formed within the first panel and a first lens disposed over the first array of LEDs. The second panel includes features similar to the first panel. The second panel is rotatable around the center core from a 0 degree closed orientation to about a 360 degree orientation, and is positionable at any intermediate angle therebetween. The LED worklight includes a retractable hook for mounting to an elevated object. The LED worklight also includes at least one magnet to mount the LED worklight to vertical/vertically angling surfaces. The array of LEDs mounted to the first panel and the second panel can be controlled independently of one another.