Heating Atomization Assembly with Capillary Inlets and Air Venting

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Solution Overview

Problem

Existing electronic heating atomization devices face issues with air entering the liquid storage chamber through gaps, impeding liquid conduction and affecting supply due to higher external pressure, which can lead to burning of the heating member.

Innovation Solution

An electronic heating atomization assembly with a base body featuring liquid inlet capillary holes and an air exchange channel, designed to control air intake path by utilizing surface tension and micro-pores, ensuring liquid supply is not obstructed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the liquid storage chamber is connected to the exterior through gaps, then air can enter the chamber to balance pressure, but liquid conduction is impeded and heating member burning occurs

Engineering Contradiction:
Improvepressure balanceVSAvoidliquid supply stability
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent separates the air intake function from the liquid supply function by providing distinct channels: air exchange channels for pressure balance and liquid inlet capillary holes for liquid supply. This segmentation prevents air from entering through the liquid supply path, eliminating the risk of liquid conduction impairment and heating member burning while maintaining pressure stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary structure (air exchange channel) that mediates the pressure balance function separately from the liquid supply system. This intermediary channel allows air to enter the liquid storage chamber without interfering with the liquid conduction path, thus maintaining both pressure stability and liquid supply reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If air enters the liquid storage chamber through gaps, then pressure is balanced, but the liquid guide channels are occupied and liquid supply is affected

Engineering Contradiction:
Improvepressure balanceVSAvoidliquid supply efficiency
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent divides the pressure balance and liquid supply functions into separate channels: air exchange channels for pressure regulation and liquid inlet capillary holes for liquid supply. This ensures that air enters through dedicated air channels without occupying liquid guide channels, maintaining full liquid supply efficiency while achieving pressure balance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The air exchange channel acts as an intermediary pathway that enables pressure balance without interfering with the liquid supply system. By providing this separate mediation channel, the patent ensures that air intake does not block or occupy liquid guide channels, preserving liquid supply efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If the liquid inlet opening is large, then liquid supply is sufficient, but air can easily enter and obstruct liquid conduction

Engineering Contradiction:
Improveliquid supply quantityVSAvoidliquid conduction reliability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent segments the liquid inlet into multiple capillary holes instead of a single large opening. This segmentation maintains sufficient total liquid supply quantity while each small capillary hole resists air entry due to surface tension effects, thereby preserving liquid conduction reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter of the liquid inlet from a large single opening to multiple small capillary holes. This parameter change exploits capillary action and surface tension to prevent air entry while maintaining adequate liquid supply quantity, thus ensuring liquid conduction reliability.

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 design effectively prevents air from entering the liquid supply channel, maintaining consistent liquid flow and preventing heating member burn by directing air through a separate air exchange channel, thus ensuring reliable operation.

Implementation Method 1

at least two liquid inlet capillary holes are provided at a position of the base body in the liquid inlet recess, and the liquid inlet capillary holes are in communication with the liquid inlet recess and the accommodation chamber, so that liquid outside the base body enters the accommodation chamber from the liquid inlet recess and the liquid inlet capillary holes

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

an air exchange channel, which is in communication with the exterior and the accommodation chamber, is provided on the base body, and the air exchange channel is located at a position other than the liquid inlet recess

Methodology Applied
Scientific EffectPressure gradient driven flow: Pressure Gradient

Data Source

PatentEP4699466A1Electronic heating and atomization assembly and apparatus
Publication Date: 2026.02.25 SHENZHEN HUACHENGDA PRECISION INDUSTRY CO LTD
  • EP4699466A1 patent drawingFigure 1
  • EP4699466A1 patent drawingFigure 2
  • EP4699466A1 patent drawingFigure 3

AI summary

An electronic and heating atomization assembly (1), comprising a base body (11), a liquid guide member (12) used for conducting liquid, and a heating member (13) used for heating and atomizing the liquid of the liquid guide member (12). A liquid intake recess (111) is provided on an outer side of the base body (11), and the base body (11) is provided with at least two liquid intake capillary holes (112) at a position in the liquid intake recess (111). The base body (11) is provided with ventilation channels (115) in communication with the outside and an accommodating cavity (116), and the ventilation channels (115) are provided at positions other than the liquid intake recess (111). Further provided is an electronic heating and atomization apparatus, comprising the electronic heating and atomization assembly (1).