Hand-Held Garment Steamer with Removable Scale Collection Chamber

Solution Overview

Problem

Hand-held garment steamers face issues with scale buildup in the steam generating chamber, leading to reduced operating life and potential overheating, as well as condensation causing water to drip onto garments due to the short steam pathway from the base unit.

Innovation Solution

A hand-held garment steamer design featuring a steam generating chamber with a scale collection chamber, allowing water to evaporate efficiently in one orientation and collecting scale in another, along with a tortuous steam channel to separate water droplets and reduce condensation, and a removable scale collection chamber to extend the device's lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the steam generating chamber is placed in the hand-held garment steamer to reduce the steam pathway length, then condensation and water dripping onto garments is reduced, but the operating life becomes short due to scale buildup in hard water countries

Engineering Contradiction:
Core Design Contradiction:
Object-affected harmful factorsVSDuration of action of moving object

Solution Approach 1:

The steam generating chamber is segmented into two functional zones: an upper steam generation area where water evaporates, and a lower scale collection chamber where scale deposits are collected. This segmentation allows the steam generation function to be separated from the scale accumulation problem, enabling scale to be collected without interfering with steam production while maintaining a compact hand-held design.

Inventive Principle:
Principle #1Segmentation

2Volume of moving object

If the steam generating chamber is made smaller to fit in the hand-held garment steamer, then the device becomes more compact and portable, but scale buildup insulates the heating element causing overheating and breakage

Engineering Contradiction:
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The scale collection chamber is extracted as a separate functional component from the main steam generation process. By providing a dedicated space below the steam generating chamber where scale can fall and accumulate, the harmful scale deposits are removed from the heating element area, preventing insulation and overheating while maintaining the compact size needed for hand-held portability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If water is fed continuously onto the heating surface to maintain steam generation, then effective wrinkle removal is achieved, but scale buildup increases and prevents evaporation

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The scale that would normally be a harmful byproduct preventing evaporation is converted into a beneficial collection mechanism. The scale collection chamber with its opening positioned below the steam generating surface allows scale to be captured as it falls, transforming the harmful scale accumulation problem into a useful self-cleaning feature that maintains evaporation efficiency while enabling continuous water feeding for productive steam generation.

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

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 design ensures efficient steam generation, reduces scale-related issues, and prevents water and scale from reaching the garment, thereby extending the steamer's life and maintaining effective wrinkle removal without staining.

Implementation Method 1

a heater to heat the surface such that water fed onto the surface is converted into steam

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

a tortuous steam channel to separate water droplets and reduce condensation

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentUS10941517B2Hand-held garment steamer with scale collection chamber
Publication Date: 2021.03.09
  • US10941517B2 patent drawing
  • US10941517B2 patent drawing
  • US10941517B2 patent drawing

AI summary

The present application relates to a hand-held garment steamer (1) comprising a steam generating chamber (5) having a surface (9) and a heater (10) to heat the surface (9) such that water fed onto the surface (9) is converted into steam. The hand-held garment steamer (1) further comprises a scale collection chamber (14) having an opening (25). The surface (9) and opening (25) are positioned relative to each other and configured so that when the garment steamer (1) is in a first orientation (A) in which the surface (9) extends downwardly away from the opening (25), water fed onto the surface (9) flows away from the opening (25) to be evaporated from the surface (9). When the garment steamer (1) is in a second orientation (B) in which the surface (9) extends downwardly towards the opening (25), scale dislodged from the surface (9) falls into the scale collection chamber (14) through the opening (25). The scale collection chamber (14) is located below the steam generating chamber (5) in both the first orientation (A) and the second orientation (B). The present application also relates to a garment steaming system (40) comprising the hand-held garment steamer (1).