Conductive-Thread Dust Filter for Low Pressure Loss
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Solution Overview
Problem
Dust collecting filters with electrodes cause pressure loss due to their large area blocking the permeable area of the filter medium, and existing manufacturing processes are complex and not suitable for mass production.
Innovation Solution
A dust collecting filter with conductive threads sewn to a filter medium, where one thread is connected to a high voltage and the other is grounded, disposed alternately on the medium's surfaces, forming a corrugated shape to minimize pressure loss and simplify manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrode with large area is disposed on the filter medium, then dust collection efficiency is improved, but pressure loss increases due to blocking the permeable area
Solution Approach 1:
The patent divides the continuous electrode into discrete conductive threads that are sewn onto the filter medium. This segmentation allows the electrode function to be distributed across multiple thin threads rather than a single large area electrode, minimizing the blocking of permeable area while maintaining dust collection efficiency through electrostatic polarization.
Solution Approach 2:
The patent applies conductive threads at specific locations where they are sewn onto the filter medium, creating localized electrostatic fields. This local application of conductivity allows dust collection to occur at specific points without requiring a large continuous electrode area, thus reducing pressure loss while maintaining effective dust capture.
2Manufacturing precision
If a complex manufacturing process is used for the dust collecting filter, then manufacturing precision is improved, but productivity decreases and mass production becomes difficult
Solution Approach 1:
The patent replaces complex electrode mounting mechanisms with a simple sewing process. Conductive threads are attached to the filter medium using conventional sewing machines, which is a well-established, high-speed manufacturing process. This substitution of the electrode attachment method with a mechanical sewing process enables mass production while maintaining sufficient positioning precision for effective electrostatic dust collection.
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 filter achieves efficient dust collection with minimal pressure loss and simplified manufacturing, enabling easy mass production by threading conductive threads through the medium using a sewing machine.
Implementation Method 1
a dust collecting filter that induces electrostatic polarization using a conductive thread
Implementation Method 2
the foreign substances is collected through the electrostatic attraction of the electrode
Data Source
AI summary
The present invention relates to a dust collecting filter and a method for manufacturing a dust collecting filter. The dust collecting filter of the present invention may comprise: a filter medium collecting foreign substances in the air; a plurality of first conductive threads sewn to the filter medium and to which a high voltage is applied; and a plurality of second conductive threads sewed to the filter medium, disposed between the plurality of first conductive threads, and grounded.