Portable Lighting Device With Magnetic Locking for Miscontact Prevention

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Mobile lighting devices are prone to accidental activation due to miscontact with sundries, leading to power consumption and potential fire hazards, and existing locking mechanisms require complex user operations.

Innovation Solution

A lighting device with magnets on the device body and locking device that magnetically attract, using a detection module and controller to detect a magnetic connection state, allowing the device to be locked or unlocked by proximity of the magnets, utilizing a resistor-capacitor circuit and electrical parameters to control the device state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a lock program is provided to prevent miscontact, then the device can be locked to prevent accidental activation, but the user must learn and perform complex locking operations such as long-pressing or double-clicking buttons

Engineering Contradiction:
Improveprevention of accidental activationVSAvoidlocking operation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical button-based locking system with a magnetic field-based automatic locking system. Magnets are embedded in the device body and locking device, creating a magnetic connection that automatically triggers the lock program without requiring users to perform complex button operations. This substitution of mechanical interaction with magnetic field interaction eliminates the need for users to learn and remember locking sequences.

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

Solution Approach 2:

The locking device automatically detects the magnetic connection state and autonomously executes the locking function without requiring user intervention. When the magnetic attraction parameter is detected, the system automatically enters locked state, and when the magnetic connection is broken, it automatically unlocks. This self-service mechanism eliminates the need for users to manually operate locking buttons or remember locking procedures.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If the device is made portable and easy to carry, then convenience is improved, but the device becomes prone to miscontact with sundries causing accidental activation

Engineering Contradiction:
Improveportability and convenienceVSAvoidaccidental activation risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary anti-action by pre-configuring the automatic locking function that activates before accidental activation can occur. When the magnetic connection state is detected (indicating the device has been placed in a pocket or bag), the system proactively enters locked state, preventing any subsequent accidental activation by sundries. This preventive measure addresses the reliability issue while preserving portability.

Inventive Principle:
Principle #9Preliminary anti-action

3Illumination intensity

If the device lights up for a long time to provide sufficient illumination, then lighting performance is improved, but power consumption increases and fire hazards may occur

Engineering Contradiction:
Improvelighting performanceVSAvoidpower consumption
Core Design Contradiction:
Illumination intensityVSLoss of energy

Solution Approach 1:

The patent implements feedback control by continuously monitoring the magnetic connection state and using this information to control the lighting function. When the magnetic connection is detected (device in pocket/bag), the system automatically locks and turns off the lighting function, preventing unnecessary power consumption. When the magnetic connection is broken (device removed from pocket/bag), the lighting function can be activated. This feedback mechanism ensures lighting performance is provided only when needed, significantly reducing overall power consumption and eliminating fire hazards.

Inventive Principle:
Principle #23Feedback

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

Enables convenient locking and unlocking through magnetic attraction, reducing power consumption and preventing accidental activation, while simplifying user operations and minimizing fire risks.

Implementation Method 1

magnets magnetically attracted to each other are provided respectively on the device body and the locking device

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12389501B2Lighting device
Publication Date: 2025.08.12 SHENZHEN OBUY TECH CO LTD
  • US12389501B2 patent drawing
  • US12389501B2 patent drawing
  • US12389501B2 patent drawing

AI summary

The present disclosure relates to a lighting device, comprising a device body and a locking device on both of which magnets magnetically attracted to each other are provided respectively; the device body comprises a controller and a detection module connected to each other, the detection module is configured to detect a connection state between the device body and the locking device, and the controller is configured to control the device body to be in a locked state when the connection state is a magnetic connection state.