Vibrating Air Filter Using Electromagnetic Pulses to Prevent Clogging

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Solution Overview

Problem

Air filters in vacuum devices often become clogged with dust and debris, reducing air intake and requiring frequent replacements, as existing systems fail to effectively prevent particulate accumulation.

Innovation Solution

A vibrating air filter system using a metal wire connected to the air filter, powered by alternating electric current pulses and interacting with a permanent magnet's magnetic field, causes the filter to vibrate, loosening and shedding dust and debris into a dust bin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a static air filter is used to remove dust and debris, then the filter can perform basic filtration, but the filter becomes clogged with accumulated dust and debris, reducing air intake and cleaning performance

Engineering Contradiction:
Improvefilter performanceVSAvoidfilter replacement frequency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies mechanical vibration to the air filter by using an electromagnet connected to a power source that generates oscillating magnetic fields, causing the filter to vibrate at specific frequencies. This vibration prevents dust and debris from accumulating on the filter surface, thereby maintaining filtration performance and reducing the need for frequent replacements

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The patent implements periodic action through intermittent vibration cycles where the air filter vibrates for specific time periods (e.g., every 10-30 minutes of operation) rather than continuously. This periodic vibration is sufficient to prevent clogging while minimizing energy consumption and wear on the filter components

Inventive Principle:
Principle #19Periodic action

2Productivity

If the air filter operates continuously without maintenance, then the vacuum can run uninterrupted, but dust and debris accumulate on the filter, drastically reducing air intake and cleaning performance

Engineering Contradiction:
Improvevacuum operation continuityVSAvoidair intake efficiency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The air filter system performs self-service by automatically vibrating to prevent its own clogging. The electromagnet is integrated into the filter assembly, and when activated, it causes the filter to vibrate and shed accumulated dust into the collection bin, allowing the filter to maintain its performance without external intervention or manual cleaning

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent transforms the static air filter into a dynamic system by adding the electromagnet and vibration capability. The filter can now change its state from stationary to vibrating, allowing it to actively prevent dust accumulation rather than passively collecting it until replacement is needed

Inventive Principle:
Principle #15Dynamics

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

Prevents filter clogging by regularly loosening and removing accumulated dust and debris, maintaining air intake and extending filter lifespan by reducing the need for frequent replacements.

Implementation Method 1

a metal wire connected to the air filter by a power source and vibrating the metal wire and connected air filter by placement of a permanent magnet in a location wherein a magnetic field of the permanent magnet and a magnetic field of the metal wire can interact

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a magnetic field of the permanent magnet and a magnetic field of the metal wire can interact and cause vibration of the metal wire and connected air filter

Methodology Applied
Scientific EffectMagnetic field interaction: Magnetic Field

Data Source

PatentUS10765984B1Vibrating air filter for robotic vacuums
Publication Date: 2020.09.08 AI INC
  • US10765984B1 patent drawing
  • US10765984B1 patent drawing
  • US10765984B1 patent drawing

AI summary

A vibrating air filter of a robotic vacuum comprising an electromagnet, a permanent magnet and an air filter. The electromagnet may comprise a metal wire and a power source connected to a first end of the wire. The power source may deliver electric pulses in alternating directions through the wire creating an electromagnet. The metal wire may be coiled around or placed adjacent to the permanent magnet and a second end of the wire may be connected to an air filter. Interaction between the magnetic fields of the electromagnet and permanent magnet may cause vibration of the wire and hence connected filter. Vibration of the filter may loosen any dust and debris latched onto the filter that may be shed into a dust bin of the vacuum.