Water Filter Layout for Vacuum Cleaners Without Sponge Filters

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Solution Overview

Problem

Conventional vacuum cleaners are heavy, bulky, and often incorporate sponge filters that can lead to unpleasant odors and safety issues, while they also fail to effectively filter micro-level dust from the air, allowing it to re-enter the environment and causing water accumulation on the vacuum's inner surfaces during use.

Innovation Solution

A vacuum cleaner design featuring a water filter system with a water receptacle that uses an air evacuation extension to guide filtered air, preventing waterways from forming on the inner surface and eliminating the need for a sponge filter by using a water filter with a specific inlet and exit configuration to enhance particle trapping and adhesion within the water.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a conventional dust-collecting bag is used, then the vacuum cleaner can collect dust, but micro-level dust passes through and re-enters the environment

Engineering Contradiction:
Improvefiltration precisionVSAvoidmicro-level dust emission
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The invention changes the filtration mechanism from dry fabric filtering to wet water-based filtering. By introducing water as the filtering medium, the system achieves superior filtration of micro-level dust particles that cannot be captured by conventional fabric bags, directly addressing the harmful emission problem

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention employs hydraulic principles by using water circulation through a pump system. The water-based filtration system creates a liquid barrier that effectively traps fine particles, replacing the pneumatic/dry filtration method with a hydraulic/wet method for improved particle capture

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If a sponge filter is used in water filter vacuum cleaners, then filtration is provided, but water drops impregnating the sponge cause unpleasant odors and safety issues

Engineering Contradiction:
Improvefiltration functionVSAvoidodor and safety hazard
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The invention completely removes the sponge filter component from the water filtration system. By extracting this problematic element, the system eliminates the source of odor generation and safety hazards while maintaining effective filtration through the water-based system alone

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention converts the potential harm of water contact with filters into a benefit by eliminating the sponge filter that causes problems. The water-based system directly filters without requiring an additional sponge medium, turning the potential issue of water-filter interaction into a simplified, safer design

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Manufacturing precision

If the vacuum cleaner is designed with conventional water filter arrangement, then particles are filtered, but the device becomes heavy and bulky

Engineering Contradiction:
Improvefiltration performanceVSAvoidvacuum cleaner weight
Core Design Contradiction:
Manufacturing precisionVSWeight of stationary object

Solution Approach 1:

The invention employs a compact, integrated water receptacle design with optimized geometry that reduces overall volume and weight. The streamlined structure achieves effective water-based filtration without the bulky conventional arrangements, making the vacuum cleaner more portable and manageable

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The invention integrates the water filter system, motor, and control components into a unified compact assembly. By merging these elements efficiently, the system achieves effective particle filtration without increasing overall device weight and bulk, creating a space-efficient design

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If water filter system operates with many bubbles rising, then filtration occurs, but water droplets accumulate on upper surface forming water ways

Engineering Contradiction:
Improveparticle filtrationVSAvoidwater accumulation
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The invention incorporates a heating element that pre-heats the water in the receptacle before filtration. This preliminary heating reduces water evaporation and minimizes water droplet formation during operation, preventing water accumulation on the upper surface while maintaining effective filtration

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention changes the water temperature parameter by incorporating heating functionality. By maintaining warmer water temperature, the system reduces the temperature differential that causes condensation and water droplet formation, thereby preventing water way accumulation while preserving filtration effectiveness

Inventive Principle:
Principle #35Parameter changes

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 design results in a more compact, efficient vacuum cleaner that effectively filters micro-level dust from the air, prevents liquid leakage into motor components, and maintains a cleaner environment by ensuring maximum contact between dust particles and water, thereby enhancing filtration performance and user safety.

Implementation Method 1

maximum contact with water is ensured and adhesion forces are increased

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

dust and particles are increasingly more entrapped in water

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 3

the vacuum lock effect of the motor which communicates with the receptacle from below

Methodology Applied
Scientific EffectVacuum: Vacuum

Data Source

PatentUS8800105B2Water filter arrangement for a vacuum cleaner
Publication Date: 2014.08.12 SENUR ELEKTRIK MOTORLARI SANAYI VE TICARET ANONIM SIRKETI
  • US8800105B2 patent drawing
  • US8800105B2 patent drawing
  • US8800105B2 patent drawing

AI summary

The electrical household appliance of the invention comprises a water filter suitable for use in a vacuum cleaner, said water filter comprises an inlet shaft perpendicular to the bottom surface of a water receptacle and in communication with a suction hose slot located at an emptied front part of said receptacle, said inlet shaft communicating with a top portion in the uppermost region of said water receptacle, said top portion extending parallel to the receptacle's bottom surface, said top portion further dividing into two separate tubes in the form of air exit posts at both sides of said inlet shaft, said air exit posts extending perpendicular to the receptacle's bottom surface.