Dehumidifier Filtering Assembly to Prevent Water Pump Blockage

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Solution Overview

Problem

Current dehumidifiers have a tank positioned at the bottom, making it difficult to separate and lift when full, leading to potential injury and risk of the tank tipping over, and they fail to prevent dust and impurities from entering the water pump, causing blockages.

Innovation Solution

A dehumidifier design with a laterally mounted tank that can be easily lifted vertically for detachment and a filtering assembly positioned between the water collector and secondary tank to filter out dust and impurities before they reach the water pump.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the tank is arranged at the bottom and separated laterally from the main body, then the tank can be positioned at a lower end for structural stability, but it becomes difficult to separate and lift the tank when full, leading to potential injury and risk of tipping

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of tank separation and lifting
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent changes the separation direction from lateral (horizontal) to vertical. The tank is now separated from the main body in the vertical direction, allowing users to lift the tank upward for removal. This dimensional change maintains structural stability while dramatically improving ease of operation, as users can simply pull the tank upward without bending or lateral maneuvering.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If dust and impurities are not filtered before entering the water pump, then the system structure remains simple, but the water pump will be blocked and damaged during water transportation

Engineering Contradiction:
Improvesystem structure simplicityVSAvoidwater pump reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements preliminary filtration by placing a filter between the condenser and the water pump. This filter captures dust and impurities before they can enter and damage the water pump. By performing the filtering action in advance, the system protects the water pump while maintaining relatively simple overall structure, thus improving reliability without excessive complexity.

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

Facilitates safe and easy handling of the tank by allowing vertical extraction, reducing the risk of injury and preventing water pump damage from dust and impurities, thus enhancing user safety and device longevity.

Implementation Method 1

The filtering assembly has a filter. The filter is located between the exhaust hole of the water collector and the receiving hole of the secondary tank.

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

The water pump has a drawing opening and a draining opening. The drawing opening communicates with the secondary tank space of the secondary tank.

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentUS11454406B2Dehumidifier with filtering assembly for secondary tank
Publication Date: 2022.09.27 NEW WIDETECH IND
  • US11454406B2 patent drawing
  • US11454406B2 patent drawing
  • US11454406B2 patent drawing

AI summary

A dehumidifier comprises a main body and a main tank. The main body has a water collector, a secondary tank, a filtering assembly, and a water pump. The water collector has an exhaust hole. The secondary tank is located under the water collector and has a receiving hole aligned to the exhaust hole. The filtering assembly has a filter located between the exhaust hole and the receiving hole, and aligned to the exhaust hole. An area of the filter is bigger than an area of the exhaust hole. The water pump has a drawing opening communicating with the secondary tank and a draining opening communicating with the main tank. Thus, the water flowing out the exhaust hole will definitely pass through the filter before flowing into the secondary tank. Therefore, the filtering assembly prevents the water pump from drawing water with dusts and impurities and being damaged.