Portable garment steamer
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Solution Overview
Problem
Conventional garment steamers require an external power source due to high energy demands, making it difficult to create an efficient cordless version as batteries cannot provide sufficient power.
Innovation Solution
A portable steamer design with a housing containing a battery, fluid reservoir, and reservoir heating element that preheats fluid to a temperature below boiling point, allowing the heating device to use battery power when unplugged from the external source, enabling cordless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the steamer uses an external power source to provide large energy for boiling water, then steam generation efficiency is improved, but portability and ease of operation deteriorate
Solution Approach 1:
The system preheats water in a reservoir using an external power source before cordless operation. This preliminary heating action reduces the energy burden on the battery during actual steaming, enabling portability while maintaining steam generation efficiency.
Solution Approach 2:
The steamer is divided into two functional segments: a base unit with reservoir and heating element for preheating, and a handheld wand with battery and steam generation components. This segmentation allows the heavy power-consuming components to remain stationary while the lightweight steaming components are portable.
2Ease of operation
If the steamer is designed as cordless with battery power, then portability is improved, but energy sufficiency and reliability worsen
Solution Approach 1:
The water is preheated in the reservoir before cordless operation begins. This preliminary action ensures that when the battery-powered wand is used, less energy is required from the battery, making cordless operation reliable and practical.
Solution Approach 2:
The system changes the temperature parameter of water from cold to preheated state before steam generation. This parameter change reduces the energy demand on the battery, enabling reliable cordless operation.
3Productivity
If water is heated to boiling point in the reservoir, then steam generation efficiency is improved, but energy consumption and battery requirements worsen
Solution Approach 1:
Instead of heating water to full boiling point (100°C), the system heats it to a sufficient but lower temperature in the reservoir. This partial heating action reduces energy consumption while still enabling effective steam generation in the handheld unit.
Solution Approach 2:
The reservoir heating element performs preliminary heating of water to a predetermined temperature below boiling point. This preheating action reduces the energy burden on the battery-powered heating element during cordless operation.
4Ease of operation
If all components are contained in the handheld wand, then portability is improved, but device complexity and weight worsen
Solution Approach 1:
The steamer is segmented into a stationary base unit containing the reservoir and heating element, and a lightweight handheld wand containing only the essential steaming components. This segmentation transfers weight to the stationary base, improving wand portability.
Solution Approach 2:
The heavy components (reservoir, heating element) are extracted from the handheld wand and placed in the stationary base. This extraction reduces wand weight and complexity while maintaining steaming functionality through the preheating mechanism.
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
Enables steam application without an external power source, minimizing battery energy usage, providing greater control over steam output, and reducing the weight of the handheld wand by containing most components in the housing.
Implementation Method 1
a reservoir heating element configured to heat fluid in the fluid reservoir to a predetermined temperature below the boiling point of the fluid
Implementation Method 2
a heating device operable to receive preheated fluid from the fluid reservoir
Data Source
Figure 1
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Figure 3
AI summary
A steamer (10) includes a housing (14), a power cord (42) configured to be selectively coupled to an external power source, a battery (58), a fluid reservoir (50) positioned in the housing, a reservoir heating element (54) configured to preheat fluid in the fluid reservoir (50), a heating device operable to receive preheated fluid from the fluid reservoir, and a nozzle (106) in fluid communication with the heating device. The reservoir heating element (54) receives power from the external power source when the power cord (42) is in communication with the external power source. The heating device receives power from the battery (58) when the power cord is unplugged from the external power source to heat the preheated fluid. The nozzle (106) is configured to receive the fluid from the heating device and discharge the fluid through the nozzle (106).