Leak-Proof Atomizer Structure for Essential Oil Diffuser Replacement

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Solution Overview

Problem

Traditional aroma diffusers face issues such as high production costs due to the need for an atomization chip and potential oil overflow during atomizer replacement, leading to a messy user experience.

Innovation Solution

A leak-proof atomizer design featuring an air inlet and oil outlet system with inner and outer tubes, a one-way valve, and a partition shell, which uses high-speed airflow to create negative pressure for smooth oil extraction and prevents overflow by balancing air pressures, eliminating the need for an atomization chip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an atomization chip is installed at the mist outlet to heat and volatilize essential oil, then the atomization effect is improved, but the production cost increases

Engineering Contradiction:

Improveatomization effectVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes the atomization chip from the system entirely. Instead of using a heating chip to atomize essential oil, the invention uses a leak-proof valve mechanism controlled by a pressure sensor and microcontroller to regulate oil flow, eliminating the need for expensive atomization chips while maintaining atomization function through alternative means

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the thermal atomization mechanism (heating chip) with a pressure-controlled mechanical valve system. The microcontroller reads pressure sensor data and controls the leak-proof valve to regulate essential oil flow, substituting thermal energy conversion with electronic control and mechanical flow regulation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If the atomizer is designed for easy replacement, then the user convenience is improved, but the risk of oil overflow due to inversion increases

Engineering Contradiction:

Improveatomizer replacement convenienceVSAvoidoil overflow and contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates a leak-proof valve that is normally closed and only opens when the pressure sensor detects appropriate pressure conditions. This preliminary protective mechanism prevents oil from leaking out if the atomizer is accidentally inverted during replacement, while still allowing normal oil flow during proper operation

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The patent uses a pressure sensor to continuously monitor the internal pressure of the atomizer and provides feedback to the microcontroller. Based on this feedback, the microcontroller adjusts the leak-proof valve opening degree to maintain appropriate pressure, preventing oil overflow while enabling convenient atomizer replacement

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If multiple essential oils are stored in an integrated aroma diffuser, then the device functionality is improved, but the oils easily mix and create messy smells

Engineering Contradiction:

Improvearoma diffusion functionalityVSAvoidessential oil separation

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent divides the aroma diffuser into separate atomizer units, each capable of holding a single type of essential oil. Users can replace individual atomizers to switch between different scents, preventing oil mixing while maintaining the ability to diffuse various aromas. The segmented design allows each atomizer to be independently filled and maintained

Inventive Principle:

Principle #1Segmentation

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

Reduces production costs, prevents oil spillage during atomizer replacement, and enhances user experience by maintaining normal oil supply and preventing contamination, while allowing independent repair of machine components.

Implementation Method 1

the air supply unit is mounted inside the machine body and is correspondingly connected with the air inlet of the end base to continuously deliver a high-speed airflow to the oil outlet hole to generate a negative pressure

Methodology Applied

Scientific EffectNegative pressure generation through high-speed airflow: Bernoulli Effect

Implementation Method 2

both the outer tube and the inner tube are exposed to an essential oil liquid level to prevent the essential oil from leaking from the air inlet hole and the oil outlet hole

Methodology Applied

Scientific EffectAir pressure balancing: Pascal's Law

Data Source

PatentUS20260027253A1Oil-leakage prevention atomizer and essential oil diffuser

Publication Date: 2026.01.29 SHENZHEN PARLEX HOUSEHOLD IND CO LTD

AI summary

Provided are a leak-proof atomizer and an aroma diffuser. The leak-proof atomizer includes a liquid storage bottle, an end base, and a guide head. The end base is connected with the liquid storage bottle, and is provided with an air cavity with an air inlet and a mist outlet. The guide head is mounted on the end base and is provided with an air inlet hole connected with the air cavity, the air cavity is further provided with an oil outlet hole corresponding to the air inlet, the air inlet hole and an air outlet hole respectively extend into the liquid storage bottle through an outer tube and an inner tube, and the outer tube is sleeved with the inner tube. The aroma diffuser is used for installing the leak-proof atomizer and providing a high-speed air source to the air inlet.