Wireless Igniter Safety Device for Child-Resistant Lighters

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Solution Overview

Problem

Traditional lighters pose a significant safety hazard, especially for children, due to improper operation, leading to accidental fires and injuries, and existing safety devices increase production costs and inconvenience usage.

Innovation Solution

A lighter with a wireless ignition system that requires a separate external device for activation, using a wireless transceiver module to send and receive signals, ensuring ignition only occurs with a valid response, thereby preventing accidental use by children and enhancing safety for adults.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a safety protection device is integrated into the lighter, then child safety is improved, but device complexity and production cost increase

Engineering Contradiction:
Improvechild safetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical safety triggering mechanisms (weighting electronic triggering requiring greater than 29.4N pressing force, multi-action triggering devices) with a wireless control system. The lighter uses a wireless transceiver module to receive control signals from an external device, eliminating the need for complex mechanical safety components while maintaining child protection functionality.

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

2Reliability

If a safety protection device is integrated into the lighter, then child safety is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvechild safetyVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces cumbersome mechanical safety operations (requiring specific pressing forces or multi-action sequences) with simple wireless control. Users can activate the lighter by receiving a wireless control signal from an external device, significantly simplifying the operation while maintaining safety through the wireless control mechanism.

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

3Ease of operation

If wireless triggering means is used, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent uses an external device as an intermediary to manage the complexity of wireless communication. The lighter contains only a wireless transceiver module that receives control signals, while the complex control logic and user interface are implemented in the external device. This distributes the complexity away from the lighter itself, maintaining ease of operation for the end user.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3249300B1Igniter with safety device
Publication Date: 2021.06.23 WENZHOU UNICLEVER GIFT INNOVATION CO LTD
  • EP3249300B1 patent drawingFigure 1
  • EP3249300B1 patent drawingFigure 2~3
  • EP3249300B1 patent drawingFigure 4

AI summary

An igniter with a safety protection device (5) and an ignition control method therefor. The igniter comprises an ignition switch (3) and an energy supply module (4). The safety protection device (5) comprises a safety switch (51), a trigger module (52) and a wireless transceiver module (53), wherein the wireless transceiver module (53) can transmit a wireless request signal, receive a wireless response signal from an external device (2) and transmit the received wireless response signal to the trigger module (52), and the trigger module (52) triggers the safety switch (51) according to the wireless response signal to enable the safety switch (51) to act, so that ignition can be realized, and the ignition cannot be realized even the ignition switch (3) is actuated when the wireless transceiver module (53) does not receive the wireless response signal. The igniter can effectively prevent children or disabled persons from accidentally using the igniter.