Electrical Dust Filter Assembly Without Welded Collecting Electrodes

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Solution Overview

Problem

Existing electrical dust filters face challenges with increased weight, manufacturing complexity, and reduced durability due to extensive welding, which hampers efficiency, handling, and maintenance, particularly in industrial applications.

Innovation Solution

A method involving a plastic process to assemble a frame with hooking protrusions and a discharging electrode system, allowing for easy assembly and replacement of collecting electrodes without welding, thereby reducing weight and enhancing maintenance accessibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to assemble collecting electrodes to upper and lower plates, then structural strength is improved, but device weight increases and manufacturing complexity increases

Engineering Contradiction:
Improvestructural strengthVSAvoiddevice weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The collecting electrode is divided into multiple modular sections that can be independently assembled and disassembled. Each section has standardized connection interfaces that allow for tool-free assembly using simple fastening mechanisms, eliminating the need for welding while maintaining structural integrity through distributed connection points.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Connection pieces or fastening intermediaries are introduced between the collecting electrode and the upper/lower plates. These intermediaries provide the necessary mechanical strength and electrical connectivity without requiring direct welding, thereby reducing the electrode thickness and overall device weight while simplifying assembly and maintenance operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If welding is used to assemble collecting electrodes, then structural strength is improved, but ease of repair deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidease of replacement
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The collecting electrode system is segmented into replaceable modular units with standardized interfaces. When one electrode section becomes damaged or depleted, it can be quickly removed and replaced without affecting other sections, eliminating the need for time-consuming welding operations and enabling rapid maintenance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection system transitions from a static welded joint to a dynamic, reversible connection mechanism. This allows the collecting electrodes to be easily detached and reattached multiple times throughout the device's operational life, significantly improving maintenance accessibility and reducing downtime.

Inventive Principle:
Principle #15Dynamics

3Strength

If thicker collecting electrodes are used for welding, then structural strength is improved, but device weight increases and handling becomes difficult

Engineering Contradiction:
Improvestructural strengthVSAvoidhandling ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

Instead of using a single thick electrode for welding, the system employs multiple thinner electrode sections connected through standardized interfaces. This segmentation maintains overall structural strength through distributed connections while keeping individual electrode sections thin and lightweight, improving handling ease and reducing the force required for assembly and maintenance operations.

Inventive Principle:
Principle #1Segmentation

4Strength

If multiple welding operations are performed, then structural strength is improved, but manufacturing time increases and productivity decreases

Engineering Contradiction:
Improvestructural strengthVSAvoidmanufacturing efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The collecting electrode assembly is designed as a modular system with pre-fabricated sections that can be independently manufactured and then quickly assembled using simple fastening operations. This eliminates the need for multiple sequential welding operations, dramatically reducing manufacturing time and increasing production throughput while maintaining structural integrity through the modular connection design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Electrode sections and connection components are pre-assembled and pre-tested as modular units before final installation. This preliminary preparation allows for quality control and assembly verification to be performed on individual modules, streamlining the overall manufacturing process and eliminating the need for complex on-site welding operations during final assembly.

Inventive Principle:
Principle #10Preliminary 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 approach results in a lighter, more efficient, and easier-to-maintain electrical dust filter with improved manufacturing efficiency and reduced risk of damage during assembly, enabling easier replacement of damaged electrodes and lowering maintenance costs.

Implementation Method 1

The filter can apply a high voltage between the collecting electrode and the discharging electrode for collecting dust to generate a corona discharge

Methodology Applied
Scientific EffectCorona discharge: Corona Discharge

Implementation Method 2

can collect various particles such as dust, gas or foul smell by an electrical force generated from an non-uniform electrical field

Methodology Applied
Scientific EffectElectrical field: Electric Field

Implementation Method 3

can collect various particles such as dust, gas or foul smell by an electrical force generated from an non-uniform electrical field

Methodology Applied
Scientific EffectElectrical force: Electrostatics

Data Source

PatentUS11084078B2Electrical dust filter manufacturing method and electrical dust filter manufactured thereby
Publication Date: 2021.08.10 NIT KOREA
  • US11084078B2 patent drawing
  • US11084078B2 patent drawing
  • US11084078B2 patent drawing

AI summary

Provided is an electrical dust-collecting filter manufacturing method and an electrical dust-collecting filter. The method includes the steps of: preparing a frame body, a dust-collecting electrode, a discharge electrode, and a discharge frame; assembling the dust-collecting electrode into an assembly hole of the frame body; connecting the discharge frame to the frame body via an insulating member; and arranging the discharge electrode in an axial direction inside the dust-collecting electrode via the discharge frame and fixing the same. The dust-collecting electrode assembling step includes: temporarily elastically deforming the dust-collecting electrode in the radial direction and inserting the same into the assembly hole of the frame body; and pressurizing end parts of both ends of the dust collecting electrode, which protrude out of a plate member when fitted into the assembly hole, in the axial direction such that the end parts are compressed against the surface of the plate member.