Structure for removing static electricity in low-humidity space

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In low-humidity spaces, existing static electricity removal devices face inefficiency due to low moisture content, leading to ineffective ionized air distribution and ion collisions, which hinder static electricity removal.

Innovation Solution

A static electricity removal structure that supplies dehumidified air in a laminar flow through a blow port with a downstream static electricity removal device, using a blowout surface material with ventilation pores and alternating ion generation to prevent ion collisions, and is covered with a double structure curtain to maintain low humidity and reduce energy costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If dehumidified air is supplied at high wind speed to maintain low humidity, then humidity control is improved, but air flow becomes turbulent causing ion collisions and reducing static electricity removal efficiency

Engineering Contradiction:
Improvehumidity controlVSAvoidstatic electricity removal efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent applies dynamics by making the air flow regime changeable - switching from high wind speed turbulent flow to low wind speed laminar flow depending on the operational requirement. The system dynamically adjusts flow conditions to prioritize either humidity control or static electricity removal efficiency based on the dominant need at each moment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements periodic action through alternating operation cycles: a first period dedicated to humidity control with high wind speed supply, followed by a second period dedicated to static electricity removal with low wind speed laminar flow. This periodic switching allows both conflicting requirements to be satisfied at different times in the operational cycle.

Inventive Principle:
Principle #19Periodic action

2Productivity

If static electricity removal device is applied in low-humidity space, then static electricity removal is attempted, but ionized air cannot be dispersed effectively due to low moisture content

Engineering Contradiction:
Improvestatic electricity removal capabilityVSAvoidionized air dispersion effectiveness
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies parameter changes by modifying the wind speed parameter from high to low during the static electricity removal period. This parameter change transforms the air flow from turbulent to laminar, enabling effective ionized air dispersion even in low-humidity conditions where moisture content is insufficient for natural ion transport.

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If dehumidified air is supplied continuously at high wind speed, then low humidity is maintained, but positive ions collide with negative ions and are eliminated

Engineering Contradiction:
Improvehumidity maintenanceVSAvoidion elimination
Core Design Contradiction:
Quantity of substanceVSLoss of substance

Solution Approach 1:

The patent uses periodic action to alternate between humidity maintenance mode (high wind speed) and static electricity removal mode (low wind speed). During the removal period, the reduced wind speed prevents ion collisions and elimination, allowing static electricity to be effectively removed before returning to humidity maintenance in the next cycle.

Inventive Principle:
Principle #19Periodic action

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

This configuration ensures efficient static electricity removal in ultra-low humidity environments by dispersing ionized air evenly and preventing ion collisions, maintaining low humidity while reducing energy consumption and air flow-induced static generation.

Implementation Method 1

The static electricity removal device causes corona discharge by concentrating an electric field on a needle-like discharge electrode and removes static electricity with ionized air.

Methodology Applied
Scientific EffectCorona discharge: Corona Discharge

Implementation Method 2

The static electricity removal device causes corona discharge by concentrating an electric field on a needle-like discharge electrode

Methodology Applied
Scientific EffectElectric field: Electric Field

Implementation Method 3

dehumidified air is supplied from one side of the low-humidity space into the low-humidity space in a laminar flow state through a blow port

Methodology Applied
Scientific EffectLaminar flow: Laminar Flow

Data Source

PatentEP3416461B1Structure for removing static electricity in low-humidity space
Publication Date: 2024.05.15 NIHON SPINDLE MFG CO LTD
  • EP3416461B1 patent drawingFigure 1A~1B
  • EP3416461B1 patent drawingFigure 2A~2B
  • EP3416461B1 patent drawingFigure 3

AI summary

There is provided a static electricity removal structure in a low-humidity space, in which static electricity can be removed with high efficiency in the low-humidity space by using a static electricity removal device. A low-humidity space 4 is configured such that dehumidified air is supplied from one side of the low-humidity space into the low-humidity space through a blowout surface material 22b in which ventilation pore is formed, and exhausting is performed from the other side of the low-humidity space 4, which opposes the blowout surface material 22b. A static electricity removal device 10 is disposed on a downstream side of the blowout surface material 22b.