LED Light Bulb with Segmented Heat Sink and Modular Cover

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Solution Overview

Problem

Traditional halogen bulbs have short lifespans, high energy consumption, and result in significant waste due to frequent replacements and inefficient energy use.

Innovation Solution

A novel LED light bulb design featuring a metal light holder, hollow light cover, and a driving circuit board with distributed LED lights, allowing for efficient energy use, easy maintenance, and various aesthetic options.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If traditional halogen bulbs use metal wire filaments as light-emitting bodies, then the bulbs can provide sufficient illumination, but the filaments are easy to damage and require frequent replacement

Engineering Contradiction:
ImproveilluminationVSAvoidservice life
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent replaces the traditional metal wire filament (mechanical system prone to breakage) with LED light-emitting elements that convert electrical energy directly to light through electroluminescence. This substitution eliminates the mechanical fragility of filaments while maintaining illumination functionality, thereby improving reliability and service life.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Illumination intensity

If traditional halogen bulbs use metal wire filaments, then illumination can be achieved, but energy consumption is high due to heating losses

Engineering Contradiction:
ImproveilluminationVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSLoss of energy

Solution Approach 1:

The patent replaces the resistive heating mechanism of metal filaments with LED electroluminescence technology. LEDs convert electrical energy directly to light with minimal heat generation, dramatically reducing energy loss while maintaining illumination output. This substitution resolves the contradiction between achieving sufficient light and minimizing energy consumption.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the light filament is damaged in traditional bulbs, then the bulb cannot function, but the entire bulb must be replaced

Engineering Contradiction:
ImprovefunctionalityVSAvoidmaintenance cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent divides the bulb into separable modules: the light cover containing LED elements can be detached from the base. If LED elements fail, only the light cover needs replacement, not the entire bulb. This segmentation enables cost-effective maintenance and reduces waste, resolving the contradiction between maintaining functionality and minimizing replacement costs.

Inventive Principle:
Principle #1Segmentation

4Illumination intensity

If traditional bulbs are replaced frequently due to filament damage, then illumination needs are met, but significant waste is generated

Engineering Contradiction:
Improveillumination availabilityVSAvoidwaste
Core Design Contradiction:
Illumination intensityVSLoss of substance

Solution Approach 1:

The patent enables modular replacement where only the light cover with LED elements is replaced upon failure, while the base and other components remain in use. This segmentation dramatically reduces material waste compared to replacing entire bulbs, while ensuring continuous illumination availability through easy component replacement.

Inventive Principle:
Principle #1Segmentation

5Illumination intensity

If the entire bulb is replaced when filament fails, then illumination is restored, but operational costs increase

Engineering Contradiction:
Improveillumination restorationVSAvoidoperational cost
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The patent enables replacement of only the light cover containing LED elements rather than the entire bulb. This segmentation reduces operational costs by allowing reuse of the base and other components, while ensuring rapid restoration of illumination through simple component replacement.

Inventive Principle:
Principle #1Segmentation

6Illumination intensity

If LED lights are distributed on the driving circuit board, then lighting range is improved, but heat radiation becomes a concern

Engineering Contradiction:
Improvelighting rangeVSAvoidheat radiation
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The patent extracts the heat dissipation function from the LED circuit board by introducing a dedicated heat sink structure. The heat sink is thermally coupled to the LED elements to conduct heat away, while the LED lights remain distributed on the circuit board to provide wide lighting coverage. This separation resolves the contradiction between maximizing lighting range and managing heat radiation.

Inventive Principle:
Principle #2Taking out (Extraction)

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 LED light bulb offers reduced energy consumption, longer lifespan, and convenient maintenance, with the ability to replace individual components without discarding the entire unit, significantly reducing waste and operational costs.

Implementation Method 1

an LED light-emitting body consisting of an a plurality of LED light lights

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

lights from the plurality of LED lights directly emits to the light cover

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 3

In order to enhance heat radiation, a heat radiator is also installed on the back surface of the driving circuit board

Methodology Applied
Scientific EffectThermal Radiation: Thermal Radiation

Data Source

PatentUS8733977B2LED light bulb
Publication Date: 2014.05.27 GLOCAL INT
  • US8733977B2 patent drawing
  • US8733977B2 patent drawing
  • US8733977B2 patent drawing

AI summary

The invention discloses a novel LED (light-emitting diode) light bulb which comprises a light holder, a light cover and an LED light-emitting body, wherein the LED light-emitting body is composed of an LED light and a driving circuit board; the LED light is electrically connected with the driving circuit board; the driving circuit board is electrically connected with the light holder; the LED light-emitting body is installed in the light cover; and the light cover is installed on the light holder. The LED light bulb is simple in structure, has high universality, is energy saving and electricity saving, is convenient to maintain, has a long service life, is economical and practical, and is suitable for popularization and using.