Electronic Flameless Candle with Dynamic Flicker and Scent Emission

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Solution Overview

Problem

Flameless candles lack the ability to simulate a natural flame flicker and provide a scented experience similar to traditional candles, while also being easily controllable and aesthetically similar to their traditional counterparts.

Innovation Solution

An electronic flameless candle design featuring a body shaped to mimic traditional candles, incorporating an LED light source with a circuit board that generates random signals for a natural flicker, a scent component for aroma emission, and a sensor component for environmental condition-based control, including motion sensing for remote operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If flameless candles use incandescent lamps or LEDs as light source, then safety and longevity are improved, but the ability to simulate natural flame flicker deteriorates

Engineering Contradiction:
Improvesafety and longevityVSAvoidnatural flame flicker simulation
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent applies dynamics by using a microcontroller to generate random flicker patterns that dynamically vary the LED's brightness and timing, making the artificial light source simulate the natural, unpredictable motion of a real flame. This resolves the contradiction by making the static LED appear dynamic and flame-like.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the temporal and intensity parameters of the LED output by controlling duty cycle, brightness levels, and flicker intervals through software, transforming the steady LED light into a dynamic flickering pattern that mimics natural flame behavior.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If flameless candles use traditional switch controls on the base, then ease of operation deteriorates, but device complexity is reduced

Engineering Contradiction:
Improvecandle control convenienceVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical switch system with sensor-based detection systems (motion sensors, touch sensors, or voice sensors) that automatically detect user intent and control the candle without requiring physical contact or complex mechanical components, thereby improving ease of operation while maintaining or reducing overall device complexity.

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

Solution Approach 2:

The candle performs self-service by using environmental sensors to automatically detect when a user wants to interact with it, eliminating the need for manual switch operation and making the device more intuitive and easier to control.

Inventive Principle:
Principle #25Self-service

3Shape

If flameless candles lack scented feature, then aesthetic similarity to traditional candles deteriorates, but device complexity is reduced

Engineering Contradiction:
Improveaesthetic similarityVSAvoidscent emission system complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent changes the physical state of the scented material by using a heating element to raise the temperature of the scent cartridge, causing the solid or liquid fragrance material to evaporate and release scent into the air, thereby achieving aesthetic similarity to traditional scented candles.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent utilizes phase transition by heating the scented material from solid/liquid to gas phase through evaporation, allowing the fragrance to be released into the surrounding air and providing the scented experience characteristic of traditional candles.

Inventive Principle:
Principle #36Phase transitions

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 realistic flame-like flicker, scent emission, and easy control, enhancing the aesthetic and functional similarity to traditional candles while ensuring safety and longevity.

Implementation Method 1

a light source operably connected to the body, the light source electrically operated to illuminate in a way that simulates a natural flicker of a real candle flame

Methodology Applied
Scientific EffectLight-emitting diode (LED): Light Emitting Diode

Implementation Method 2

a scent component, operably connected to the body, the scent component configured to emit a scent when heated

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP2984401B1Electronic flameless candle
Publication Date: 2018.10.10 LI XIAOFENG
  • EP2984401B1 patent drawingFigure 1A
  • EP2984401B1 patent drawingFigure 1B
  • EP2984401B1 patent drawingFigure 1C

AI summary

An electronic flameless candle(10) including a body (20) having a top surface(22), a bottom surface(24), a sidewall(26) between the top surface(22) and the bottom surface(24), and a cavity(48) defined by the top surface(22), the bottom surf ace(24) and the sidewall(26), the body(20) configured in shape and size to simulate a true flame candle. The candle (10) may also include a light source(56) operably connected to the body(20), the light source(56) electrically operated to illuminate in a way that simulates a natural flicker of a real candle flame. The candle (10) may also include a scent component(40), operably connected to the body(20), the scent component(40) configured to emit a scent when heated and/or a sensor component(70), operably connected to the body(20), the sensor component(70) configured to sense an environmental condition and affect a mode of the light source(56) upon the sensing of the environmental condition.