Indirect Spray Atomizer for Fine Droplets Without Heat Buildup
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Solution Overview
Problem
Conventional desktop air humidifiers generate excessive heat during the atomization process, leading to potential malfunctions and denaturation of additives in the liquid, and fail to produce small enough droplets to prevent over-humidification.
Innovation Solution
An atomizing device with a nozzle plate unit and an indirect spray unit featuring a channel structure where the first atomized droplets undergo repeated striking and rebounding, reducing droplet size, and incorporating a recycling mechanism to reuse and recycle the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a high-frequency oscillation plate is used to atomize liquid, then the liquid can be atomized into droplets, but excessive heat is generated causing overheating and potential malfunction
Solution Approach 1:
The patent replaces the high-frequency oscillation plate (mechanical vibration system) with a nozzle plate unit that uses fluid pressure to atomize liquid. The nozzle plate creates multiple small holes through which liquid is pressurized and ejected as fine droplets, eliminating the need for high-frequency mechanical oscillation and the associated heat generation.
Solution Approach 2:
The invention uses hydraulic pressure to drive liquid through the nozzle plate unit, creating atomized droplets without mechanical vibration. The pressurized liquid flows through multiple small holes in the nozzle plate, naturally breaking into fine droplets due to pressure differential and surface tension effects, avoiding thermal issues.
2Manufacturing precision
If a high-frequency oscillation plate is used to atomize liquid, then atomization is achieved, but heat denatures additives such as essences and fragrances
Solution Approach 1:
The patent replaces thermal-mechanical oscillation with pure hydraulic atomization. Liquid containing heat-sensitive additives is pressurized and forced through the nozzle plate, where it atomizes into fine droplets through pressure-driven flow and surface tension effects, completely avoiding thermal exposure that would denature essences and fragrances.
3Productivity
If conventional atomization methods are used, then liquid is atomized, but droplet diameter is too large causing over-humidification
Solution Approach 1:
The nozzle plate unit is designed with multiple small holes (e.g., 10-100 holes per cm²) to segment the liquid stream into numerous individual droplet streams. This segmentation creates many more, finer droplets compared to conventional single-orifice nozzles, achieving the required small droplet diameter for effective humidification without over-humidification.
4Device complexity
If the nozzle plate unit is fixed, then structure is simple, but liquid recycling is inefficient
Solution Approach 1:
The nozzle plate unit is designed to be detachable and replaceable rather than permanently fixed. This dynamic configuration allows users to remove and clean the nozzle plate when clogged, or replace it with different nozzle plates having different hole patterns to optimize for different liquids or performance requirements, thereby maintaining high liquid recycling efficiency and system productivity.
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 device effectively produces smaller droplets, reducing heat generation and maintaining the integrity of additives, while also recycling liquid for environmental protection.
Implementation Method 1
a nozzle plate unit disposed in the liquid storage chamber and spraying the liquid into first atomized droplets
Implementation Method 2
The first atomized droplets undertake striking and rebounding in the channel structure repeatedly to form second atomized droplets
Implementation Method 3
the third atomized droplets fall into the second liquid storage chamber and flow back to the first liquid storage chamber
Data Source
AI summary
An atomizing device includes a first liquid chamber to store a liquid to be atomized; a nozzle plate unit disposed on the first liquid chamber and used to spray the liquid into first atomized droplets; and an indirect spray unit disposed at a position where the first atomized droplets are sprayed to accept the first atomized droplets. The indirect spray unit includes a channel structure having a droplet inlet disposed toward a position where the nozzle plate unit sprays out the first atomized droplets; and a droplet outlet disposed on one side wall of the atomizing device. The droplet inlet receives the first atomized droplets to enter the indirect spray unit. The first atomizing droplets undertake striking and rebounding repeatedly in the channel structure to form the second atomized droplets. The second atomized droplets are sprayed out from the droplet outlet.