Multi-function Flashlight With Waterproof Power Module And Heat Insulation

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Solution Overview

Problem

Conventional flashlights lack multifunctionality and robustness for emergency situations, particularly in providing both light and additional essential functionalities like power management, jump-starting, and self-defense in a waterproof and heat-resistant design.

Innovation Solution

A multi-function flashlight with a waterproof cavity housing an LED light assembly, a power management module with USB and jump-start capabilities, a crenelated strike bezel for self-defense, and a heat-insulating outer body member, featuring magnets for secure closure and O-ring sealing, along with temperature control and adjustable lumen output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple functionalities (USB outlet, charging input, jump start cable, LED indicators) are integrated into the flashlight, then versatility and adaptability are improved, but device complexity increases

Engineering Contradiction:
ImprovemultifunctionalityVSAvoidcomplexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple emergency functions (USB power outlet, charging input port, jump start cable outlet, and LED indicator lights) into a single integrated power management module. This merging of functions into one unified component provides versatility while managing complexity through integrated design rather than separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The power management module body member serves multiple purposes: it houses the battery, provides USB charging capability, includes a jump start function for vehicles, and incorporates LED indicator lights for status display. This universal component performs diverse functions that would traditionally require separate devices, enhancing adaptability while maintaining a single cohesive unit.

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

2Reliability

If a waterproof seal (O-ring) is added between the cover and power management module body member, then reliability and protection are improved, but device complexity increases

Engineering Contradiction:
Improvewaterproof protectionVSAvoidcomplexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs an O-ring seal, which is a flexible elastomeric component, to create a waterproof barrier between the power management module body member and its cover. This flexible seal conforms to the mating surfaces and provides reliable water protection through its elastic properties, maintaining reliability while adding minimal structural complexity.

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If magnets are used to secure the cover in closed orientation, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvecover closureVSAvoidcomplexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical fastening mechanisms (such as screws, clips, or latches) with magnetic attraction to secure the cover to the power management module body member. This substitution of mechanical systems with magnetic fields simplifies the closure operation to a simple snap-action while providing reliable sealing, improving ease of operation with minimal added complexity.

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

4Temperature

If a plastic heat insulating ring is used to separate front and back body member parts, then temperature control and protection are improved, but device complexity increases

Engineering Contradiction:
Improveheat insulationVSAvoidcomplexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent introduces a plastic heat insulating ring as an intermediary component positioned between the front and back body member parts of the flashlight head. This intermediate element acts as a thermal barrier, preventing heat transfer between the LED light assembly area and the battery compartment, thereby providing temperature control while adding only a simple insulating element to the structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

5Temperature

If heat transfer fins are added to the front body member part, then heat dissipation is improved, but device complexity increases

Engineering Contradiction:
Improveheat dissipationVSAvoidcomplexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent incorporates heat transfer fins on the front body member part, utilizing extended surface area through fin structures to enhance convective and radiative heat dissipation. The fins increase the surface area available for heat transfer to the surrounding air, improving thermal management of the LED light assembly without requiring complex active cooling systems.

Inventive Principle:
Principle #14Spheroidality (Curvature)

6Adaptability or versatility

If a crenelated strike bezel is added to the flashlight head, then adaptability for self-defense is improved, but device complexity increases

Engineering Contradiction:
Improveself-defense capabilityVSAvoidcomplexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent adds a crenelated strike bezel to the flashlight head, enabling the device to serve dual purposes: illumination and self-defense. The bezel's toothed or notched structure is designed to concentrate force for breaking glass surfaces (such as car windows) or as a tactical tool, providing emergency self-defense capability while maintaining the flashlight's primary lighting function, thereby enhancing adaptability with a relatively simple structural addition.

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

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 flashlight offers high lumen output, integrated rechargeable batteries, jump-start functionality, and enhanced durability with waterproof and heat-resistant design, addressing the need for a versatile tool in emergency environments.

Implementation Method 1

An O-ring is positioned between the cover and the power management module body member in a manner providing waterproof protection

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the pivotally mounted cover uses magnets positioned on the power management module body member for securing the cover in a closed and sealed orientation

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 3

the front body member part of the outer body member includes heat transfer fins that function to dissipate heat from the outer body member

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 4

the front body member part of the outer body member includes heat transfer fins that function to dissipate heat from the outer body member

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 5

a plastic heat insulating ring limiting the flow of heat from the flashlight head to the central body member

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS10578297B1Multi-function flashlight
Publication Date: 2020.03.03 SMARTECH LLC
  • US10578297B1 patent drawing
  • US10578297B1 patent drawing
  • US10578297B1 patent drawing

AI summary

A high lumen output flashlight includes a flashlight head at a first end of the flashlight and a power assembly at a second end of the flashlight. The power assembly includes power management module body member with a pivotally mounted cover selectively covering a recess formed in a second end of the power management module body member. An O-ring is positioned between the pivotally mounted cover and the power management module body member in a manner providing waterproof or water resistant protection. A central body member is positioned between the flashlight head and the power assembly. The flashlight head includes an outer body member secured to a first end of the central body member and an LED light assembly is positioned within the outer body member. The outer body member includes a plastic heat insulating ring.