Circumferential Heating E-Cigarette Needle with PTFE Coating

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Solution Overview

Problem

E-cigarettes with direct contact curing and heating elements suffer from carbon deposits, producing harmful substances like tar and nicotine, leading to insufficiently pure smoke and health hazards.

Innovation Solution

A circumferentially heating type curing needle with a built-in heating element and a non-stick PTFE coating to prevent residue adherence, combined with a ceramic base and thermocouples for efficient heating and temperature control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a direct contact curing and heating element is used, then heating efficiency is improved, but carbon deposits and harmful substances (tar and nicotine) are generated

Engineering Contradiction:
Improveheating efficiencyVSAvoidcarbon deposits and harmful substances
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a non-stick coating layer as an intermediary between the heating element and the atomizing medium. This coating layer prevents direct contact, thereby avoiding carbon deposits and harmful substance generation while maintaining effective heat transfer to the atomizing medium.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-generated harmful factors

If a non-stick coating is applied to the curing needle head, then carbon deposits are prevented, but manufacturing complexity increases

Engineering Contradiction:
Improvecarbon depositsVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-generated harmful factorsVSEase of manufacture

Solution Approach 1:

The patent specifies particular parameters for the non-stick coating including material composition (PTFE-based), thickness range (1-10 micrometers), and surface properties (low friction coefficient). By defining specific parameter ranges, the coating process becomes more controllable and manufacturable despite the added complexity.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If the atomizing medium is heated for a long time at high temperature, then curing effect is improved, but hazardous substances are produced

Engineering Contradiction:
Improvecuring effectVSAvoidhazardous substances
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The patent incorporates temperature sensing and control mechanisms that provide feedback to the heating system. This allows real-time monitoring and adjustment of heating parameters to maintain optimal curing temperature while preventing excessive heating that would generate hazardous substances, thus achieving both good curing effect and safety.

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

Ensures uniform heating, reduces tar and nicotine, prevents carbon deposits, and enhances the taste of smoke while being energy-efficient and environmentally friendly.

Implementation Method 1

The curing needle head is externally plated with a non-stick coating

Methodology Applied
Scientific EffectNon-stick coating effect: Polytetrafluoroethylene (PTFE)

Implementation Method 2

a curing needle head that is built-in with a heating element

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

The hollow tubes are respectively provided with thermocouples and thermal fuses served as the heating element

Methodology Applied
Scientific EffectThermocouple effect: Thermocouple

Data Source

PatentUS11517049B2E-cigarette and circumferentially heating type curing needle for the same
Publication Date: 2022.12.06 SHENZHEN BUDDY TECH DEV CO LTD
  • US11517049B2 patent drawing
  • US11517049B2 patent drawing
  • US11517049B2 patent drawing

AI summary

A circumferentially heating type curing needle is adapted for an E-cigarette and comprises a curing needle head that is built-in with a heating element. The curing needle head is externally plated with a non-stick coating which is a polytetrafluoroethylene (PTFE) coating or a PTFE non-stick nano coating. The curing needle head is further provided with a fixed support and a ceramic base, the ceramic base is secured into the fixed support, and the curing needle head is fixedly inserted into the ceramic base. The E-cigarette is provided with the aforesaid circumferentially heating type curing needle.