Electrostatic Sprayer for Liquid Adhesion and Atomization

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Solution Overview

Problem

Sprayers face low utilization rates of atomized liquids due to them easily slipping off external objects, resulting in wastage.

Innovation Solution

A sprayer design that includes a power module to charge the liquid, a spray nozzle to atomize and charge the liquid with an opposite charge for better adhesion to external objects, and a blower to enhance the spraying force, ensuring the liquid is effectively dispersed and absorbed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If conventional sprayers atomize liquids and spray them onto external objects, then the liquid can be applied to the target surface, but the atomized liquids easily slip off and are wasted, causing low utilization rate

Engineering Contradiction:
Improveloss of atomized liquidVSAvoidutilization rate of atomized liquid
Core Design Contradiction:
Loss of substanceVSProductivity

Solution Approach 1:

The patent replaces the conventional mechanical spraying system with an electrostatic charging system. The power module charges the liquid before it reaches the spray nozzle, and the external object is given an opposite charge. This electrostatic attraction mechanism substitutes for purely mechanical spray deposition, causing the atomized liquid to be attracted to and adhere to the external object rather than slipping off, thereby reducing loss and improving utilization rate.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the electrical parameter of the liquid by charging it through the power module. The liquid transitions from being electrically neutral to carrying an electrical charge. This parameter change enables the liquid to interact electrostatically with the externally charged object, improving adhesion and reducing waste of atomized liquid.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If the spray nozzle atomizes the liquid, then the liquid disperses better for coverage, but the atomized droplets have insufficient adhesion to the external object

Engineering Contradiction:
Improveatomization qualityVSAvoidadhesion to external object
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent introduces an electrostatic field mechanism to supplement the mechanical atomization process. While the spray nozzle provides mechanical atomization for good dispersion, the electrostatic charging system provides an additional adhesion mechanism through electrostatic attraction between the charged liquid droplets and the oppositely charged external object, ensuring reliable attachment.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a composite effect by combining mechanically atomized liquid with electrostatically charged particles. The liquid maintains its atomized state for good coverage while the electrical charge provides enhanced adhesion properties, creating a dual-mechanism delivery system that achieves both good dispersion and reliable attachment.

Inventive Principle:
Principle #40Composite materials

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 sprayer achieves a higher utilization rate of atomized liquids by ensuring they adhere and are absorbed by external objects, with improved atomization due to the repulsive force from the charge, leading to better coverage and efficiency.

Implementation Method 1

a power module, connected to the sprayer casing and configured to energize the liquid in the cavity to make the liquid carry a first charge

Methodology Applied
Scientific EffectElectrical charging: Electrostatic Induction

Implementation Method 2

a spray nozzle, connected to the sprayer casing and configured to atomize the liquid with the first charge and spray it onto an external object with a second charge

Methodology Applied
Scientific EffectAtomization: Fluid Spray

Implementation Method 3

the first charge and the second charge are opposite... the atomized liquid can be attached onto the external object with the second charge

Methodology Applied
Scientific EffectElectrostatic attraction: Ion Repulsion/Attraction

Data Source

PatentUS11890635B2Sprayer
Publication Date: 2024.02.06 INTRADIN SHANGHAI MACHINERY
  • US11890635B2 patent drawing
  • US11890635B2 patent drawing
  • US11890635B2 patent drawing

AI summary

A sprayer includes a sprayer casing, a power module and a spray nozzle. The sprayer casing is configured to contain a liquid. The power module is connected to the sprayer casing and is configured to energize the liquid in the sprayer casing, so that the liquid carries a first charge. The spray nozzle is connected to the sprayer casing and is configured to atomize the liquid with the first charge and spray it onto the external object with the second charge. The first charge and the second charge are opposite. The sprayer of the present invention has an excellent atomization effect and an improved the utilization rate of the atomized liquid.