Electrostatic atomizing system, and method for fault detection in electrostatic atomizing system

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Solution Overview

Problem

Electrode cooling-type electrostatic atomizing systems face challenges in low humidity environments, such as aircraft cabins at high altitudes, where humidity is insufficient for operation, and require significant maintenance, leading to increased labor and weight concerns due to the need for multiple humidifying devices and water supply management.

Innovation Solution

An electrostatic atomizing system integrated with a humidifying device and fault detection method that includes humidity and temperature sensors, a control unit, and a communication system to manage and centrally monitor the humidifying devices, optimizing water usage and reducing maintenance efforts by detecting faults and predicting water supply needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrode cooling-type electrostatic atomizing apparatus is used in low humidity conditions, then atomization function is compromised, but adding humidifying devices increases device complexity and maintenance labor

Engineering Contradiction:
Improveatomization functionVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the humidifying device and the electrostatic atomizing apparatus into a single integrated system. The control unit of the electrostatic atomizing apparatus also controls the humidifying device, merging multiple functions into one unified system that reduces overall complexity while ensuring reliable operation in low humidity conditions

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The control unit serves dual purposes: controlling the electrostatic atomization process and managing the humidifying device. This multi-functionality eliminates the need for separate control systems, reducing device complexity while maintaining reliable atomization function through integrated environmental management

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple humidifying devices are added to ensure sufficient humidity, then humidity requirement is met, but maintenance labor and system weight increase

Engineering Contradiction:
Improvehumidity sufficiencyVSAvoidmaintenance labor
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Instead of deploying multiple separate humidifying devices, the patent integrates one humidifying device with the electrostatic atomizing apparatus, combining functions to reduce the number of components while ensuring sufficient humidity through coordinated control

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system uses a humidity sensor to continuously monitor cabin humidity levels and provides feedback to the control unit, which automatically adjusts the humidifying device operation to maintain optimal humidity, eliminating the need for manual intervention and reducing maintenance labor

Inventive Principle:
Principle #23Feedback

3Productivity

If water supply management is implemented, then atomization performance is maintained, but labor for water supply and inspection increases

Engineering Contradiction:
Improveatomization performanceVSAvoidwater supply management
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system incorporates a water level sensor that continuously monitors water levels and provides feedback to the control unit. When water levels are low, the system automatically generates notifications to prompt water refilling, eliminating the need for manual monitoring and inspection while maintaining optimal atomization performance

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-monitoring of water levels and automatically manages the water supply process through electronic notifications, reducing the need for manual water supply management and inspection labor while ensuring atomization performance is maintained

Inventive Principle:
Principle #25Self-service

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 system effectively maintains humidity levels in aircraft cabins, reducing maintenance workload and water consumption while ensuring efficient operation of the electrostatic atomizing system, even in low humidity conditions, by detecting faults and optimizing water supply.

Implementation Method 1

cooling a water application electrode and causing water vapor in the air to condense on the water application electrode

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 2

electrode cooling-type electrostatic atomizing system

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 3

electrostatic atomizing apparatus that atomizes, by applying voltage, the condensation water produced by the Peltier unit

Methodology Applied
Scientific EffectElectrostatic atomization: Electrostatics

Data Source

PatentEP3626623B1Electrostatic atomizing system, and method for fault detection in electrostatic atomizing system
Publication Date: 2021.07.28 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • EP3626623B1 patent drawingFigure 1
  • EP3626623B1 patent drawingFigure 2
  • EP3626623B1 patent drawingFigure 3

AI summary

An electrostatic atomizing system (1) includes an air flow path (200) having an air intake port (21) and an air exhaust port (22), a humidifying device (10), an electrostatic atomizing apparatus (30), a first sensor (17b, 18b), and a control unit (11). The humidifying device (10) humidifies the air taken in through the air intake port (21). The electrostatic atomizing apparatus (30) includes an electrode section (31) operable to produce charged particulate water by causing the water in the air humidified by the humidifying device (10) to condense on an electrode and applying voltage to that electrode. Moreover, the electrostatic atomizing apparatus (30) exhausts air that contains the charged particulate water through the air exhaust port (22). The first sensor (17b, 18b) senses at least one of humidity and temperature of the air humidified by the humidifying device (10). The control unit (11) determines, based on a sensing result of the first sensor (17b, 18b), if there is a fault in the humidifying device (10) or the electrostatic atomizing apparatus (30), and outputs the result of the determination.