Elongate Light Extruded Plastic Housing Reduces Weight

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Solution Overview

Problem

Conventional elongate lights have a costly metal housing that is heavy and requires complex assembly, including an additional shielding body.

Innovation Solution

An elongate light with a main body made of an extruded flexible plastic member, featuring a base board and wing portions integrally formed as a one-piece configuration, reducing manufacturing costs and weight, and incorporating LED strips for power efficiency, with a light-reflection design and optional shielding for soft light.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a metal frame housing is used, then the structural strength is improved, but the weight increases and manufacturing cost increases

Engineering Contradiction:
Improvestructural strengthVSAvoidweight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent changes the material parameter from metal to plastic, specifically using an extruded flexible plastic member that maintains sufficient structural strength while dramatically reducing weight. The plastic material's flexibility and extrusion成型 capability allow the housing to meet strength requirements without the heaviness of metal frames.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material construction where the plastic housing integrates multiple functional components. The extruded plastic member combines structural support, shielding, and housing functions in a unified composite structure, eliminating the need for separate metal frame and shielding body assemblies.

Inventive Principle:
Principle #40Composite materials

2Reliability

If a metal frame housing with additional shielding body is used, then the protection of lighting elements is improved, but the device complexity increases

Engineering Contradiction:
Improveprotection of lighting elementsVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the housing and shielding body into a single integrated plastic component. The extruded plastic member simultaneously serves as the housing structure and the shielding element, eliminating the need for separate assembly of metal frame and shielding body, thus reducing device complexity while maintaining protection functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The plastic housing member performs multiple functions simultaneously: it provides structural support, acts as a shielding body for LED protection, and serves as the overall housing. This multi-functional design simplifies the device structure by eliminating specialized components for each function.

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

3Stability of the object's composition

If a metal frame housing is used, then the structural stability is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvestructural stabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent changes the manufacturing approach from metal fabrication to plastic extrusion molding. The extruded flexible plastic member is produced through continuous extrusion processes that are more cost-effective than metal frame fabrication, while the resulting structure maintains adequate structural stability for the lighting application.

Inventive Principle:
Principle #35Parameter changes

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 lightweight, cost-effective, and durable elongate light with improved structural strength and light convergence, while simplifying assembly and protecting the lighting elements from external damage.

Implementation Method 1

a main body, being an extruded flexible plastic member

Methodology Applied
Scientific EffectFlexibility:

Implementation Method 2

a side of the base board away from the frame portion having at least one lighting element

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS10364949B1Elongate light
Publication Date: 2019.07.30 TANG YI WEN
  • US10364949B1 patent drawing
  • US10364949B1 patent drawing
  • US10364949B1 patent drawing

AI summary

An elongate light includes a main body, being an extruded flexible plastic member, including a frame portion, a base board and two wing portions which are integrally formed of one piece. A longitudinal direction of the main body is defined as a first direction. The base board and the frame portion are connected to form a tubular structure. The two wing portions extend outwardly from two sides of the base board toward a direction away from the frame portion. A side of the base board away from the frame portion has at least one lighting element.