Induction Heating Electronic Cigarette Detachable Connection

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Solution Overview

Problem

Existing electronic cigarettes using nickel chromium heating wires suffer from short-lived soldering points due to oxidation, leading to instability and varying contact resistances, which affects the longevity and efficiency of the heating process.

Innovation Solution

An electronic cigarette design featuring a detachable connecting structure between the power supply and atomizer, utilizing an electromagnetic induction coil to heat a metallic element within the atomizer, eliminating the need for soldering points and enhancing heat transmission through a screw thread, snap-fit, or magnetic attraction mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If soldering is used to connect the heating wire with the wire, then the connection is initially stable, but the soldering point becomes broken easily due to oxidation and has a short life span

Engineering Contradiction:
Improveconnection stabilityVSAvoidsoldering point lifespan
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent removes the soldering connection method entirely and replaces it with a direct mechanical connection between the heating wire and the wire. This extraction of the problematic soldering process eliminates the oxidation issue that caused soldering points to fail prematurely, while maintaining electrical connectivity through the direct metal-to-metal contact in the wire holder.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the chemical bonding mechanism of soldering with a mechanical connection system. The wire holder provides a mechanical clamp or holder structure that secures the heating wire and wire together through physical constraint rather than chemical bonding, thereby avoiding oxidation-related failures while maintaining stable electrical contact.

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

2Duration of action of stationary object

If a detachable connecting structure is used between power supply and atomizer, then the lifespan is extended and heat transmission is improved, but the device complexity increases

Engineering Contradiction:
Improveelectronic cigarette lifespanVSAvoidconnecting structure complexity
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent divides the electronic cigarette into separable modules - the power supply unit and the atomizer unit - connected by a detachable connecting structure. This segmentation allows each module to be independently optimized, replaced, or maintained, extending the overall lifespan by enabling selective replacement of worn components without discarding the entire device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detachable connecting structure serves as an intermediary component between the power supply and atomizer. This intermediate connection mechanism facilitates easy assembly and disassembly while maintaining reliable electrical and mechanical connections, balancing the need for simplicity with the benefits of modularity and extended lifespan.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design extends the lifespan of the electronic cigarette, improves heat transmission efficiency, and accelerates aerosol generation by eliminating contact resistance issues associated with soldering points, resulting in a more reliable and effective vaporization process.

Implementation Method 1

The power supply includes an electromagnetic induction coil at the connecting end. The metallic element is capable of generating heat in an alternating magnetic field.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10595565B2Electronic cigarette
Publication Date: 2020.03.24 SHENZHEN FIRST UNION TECH CO LTD
  • US10595565B2 patent drawing
  • US10595565B2 patent drawing
  • US10595565B2 patent drawing

AI summary

An exemplary electronic cigarette includes a power supply and an atomizer. The atomizer is connected with the power supply via a detachable connecting structure. The power supply has a connecting end connecting with the atomizer. The power supply includes an electromagnetic induction coil at the connecting end. The atomizer includes a housing, a liquid chamber arranged in the housing, and a metallic element. The metallic element is capable of generating heat in an alternating magnetic field. The liquid chamber defines an opening facing the power supply. The atomizer further includes a liquid storing element arranged in the opening. The liquid storing element is capable of storing tobacco liquid, and preventing tobacco liquid in the liquid chamber from flowing out. The metallic element abuts against the liquid storing element. The metallic element is configured for heating the tobacco liquid absorbed in the liquid storing element to form aerosol.