E-cigarette Vaporization Core Liquid Storage Control

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Solution Overview

Problem

E-cigarettes often experience phenomena such as 'e-liquid frying' and 'burnt core' due to incomplete vaporization of the vaporization liquid, leading to a compromised taste during inhalation.

Innovation Solution

A vaporization core design with a liquid guide body and heating body arrangement, where the liquid storage portion is defined between the vaporization and liquid absorbing regions, ensuring the vaporization liquid is fully vaporized by controlling the liquid storage amount and vaporization amount within specific ratios, thereby preventing 'e-liquid frying' and 'burnt core'.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the liquid storage amount in the vaporization core is increased, then the vaporization liquid supply is sufficient to avoid burnt core, but the unvaporized liquid accumulates causing e-liquid frying

Engineering Contradiction:
Improveliquid storage amountVSAvoide-liquid frying and burnt core
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The liquid guide body is segmented into distinct functional regions: a liquid absorbing region at the first end, a vaporization region at the second end, and a liquid storage portion in between. This segmentation ensures that liquid is absorbed at one end, stored in a controlled quantity in the middle, and vaporized at the other end, preventing both accumulation (e-liquid frying) and insufficiency (burnt core).

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the liquid guide body are designed with different properties: the liquid absorbing region has high porosity for liquid uptake, the liquid storage portion has controlled porosity and volume to hold specific liquid amount, and the vaporization region has optimized surface area for efficient vaporization. This local differentiation allows each region to perform its function optimally.

Inventive Principle:
Principle #3Local quality

2Productivity

If the heating power is increased to ensure complete vaporization, then the vaporization efficiency improves, but the risk of burnt core increases

Engineering Contradiction:
Improvevaporization efficiencyVSAvoidburnt core
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The liquid storage portion pre-stores the exact amount of liquid needed for vaporization before the heating process begins. This preliminary action ensures that sufficient liquid is already in position in the vaporization region when heating starts, eliminating the risk of burnt core while maintaining efficient vaporization.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The liquid guide body structure itself provides the liquid storage function through its designed porosity and volume in the liquid storage portion. The structure automatically regulates the liquid amount without requiring external control mechanisms, ensuring consistent liquid supply for complete vaporization.

Inventive Principle:
Principle #25Self-service

3Volume of moving object

If the liquid guide body volume is reduced to minimize device size, then the compactness improves, but the liquid storage capacity decreases

Engineering Contradiction:
Improvevaporization core volumeVSAvoidliquid storage capacity
Core Design Contradiction:
Volume of moving objectVSQuantity of substance

Solution Approach 1:

The liquid storage portion is nested within the liquid guide body structure, utilizing the internal porous space rather than requiring separate external storage. This nested design allows the liquid storage capacity to be integrated into the overall structure, minimizing the total volume while maintaining adequate liquid storage.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The porosity and dimensions of the liquid storage portion are precisely controlled to optimize the liquid storage capacity within the available volume. By adjusting these parameters, the design achieves the minimum required liquid storage amount (T1 ≤ Q1 ≤ 3T1) while keeping the overall vaporization core compact.

Inventive Principle:
Principle #35Parameter changes

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 solution ensures that the vaporization liquid is fully vaporized, improving the taste and preventing unvaporized liquid from being inhaled, thus enhancing the user experience by maintaining the quality and quantity of vapor output.

Implementation Method 1

a liquid guide body, where the liquid guide body has a first side surface and a second side surface arranged opposite to each other, at least a part of the first side surface forms a liquid absorbing region

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

The vaporization liquid is heated and vaporized by the vaporization core to form smoke

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 3

a heating body, where the heating body is arranged at the vaporization region of the second side surface

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP4305980A1Vaporization core for e-cigarette, cartridge for e-cigarette, and e-cigarette
Publication Date: 2024.01.17 BYD PRECISION MANUFACTURE CO LTD
  • EP4305980A1 patent drawingFigure 1
  • EP4305980A1 patent drawingFigure 2
  • EP4305980A1 patent drawingFigure 3

AI summary

The present invention discloses a vaporization core for an e-cigarette, a cartridge for an e-cigarette, and an e-cigarette. The vaporization core includes: a liquid guide body, where the liquid guide body has a first side surface and a second side surface arranged opposite to each other, at least a part of the first side surface forms a liquid absorbing region, at least a part of the second side surface forms a vaporization region, the liquid guide body includes a liquid storage portion, the liquid storage portion is a part of the liquid guide body between the second side surface and a position obtained by translating the second side surface to the first side surface by 0.5 mm to 1.5 mm, a liquid storage amount of the liquid storage portion is Q1, and quality of vaporization liquid vaporized by the vaporization core in one inhalation cycle is defined as a single-inhalation vaporization amount T1, where T1 ≤ Q1 ≤ 3T1; and a heating body, where the heating body is arranged at the vaporization region of the second side surface. The vaporization core for the e-cigarette according to the embodiments of the present invention can match the single-inhalation vaporization amount, thereby ensuring the amount of vapor output, and ensuring that the vaporization liquid is fully vaporized.