Modular Steam Generator Assembly for Laundry Appliances
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Solution Overview
Problem
Existing steam generators for laundry appliances, particularly refresher dryers, are difficult to assemble, install, and maintain due to complex configurations and lack of modular design.
Innovation Solution
A modular steam generator design featuring a continuous-flow heater and solenoid water pump mounted on top of a water tank, with a compact and reliable connection, incorporating an NTC sensor for accurate temperature control and a safety switch to prevent overheating, along with a steam separator to optimize steam and water separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a modular steam generator design with heater and water pump mounted on top of water tank is used, then ease of assembly, installation and maintenance is improved, but device complexity increases due to additional mounting structures and connections
Solution Approach 1:
The steam generator is divided into separate modular components (heater, water pump, water tank) that can be independently manufactured and then assembled together. The heater and water pump are mounted on top of the water tank, creating distinct functional modules that simplify assembly and maintenance while maintaining system integration through standardized mounting structures
2Productivity
If continuous-flow heater with water tube is used, then steam generation efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The heater is designed as a continuous-flow heater with a water tube that provides localized heating zones. This allows different sections of the water tube to be optimized for specific functions (heating, steam generation), improving overall steam generation efficiency while distributing manufacturing precision requirements across multiple standardized components rather than requiring high precision throughout the entire system
3Reliability
If NTC sensor and safety switch are added for temperature control, then reliability is improved, but device complexity increases
Solution Approach 1:
The NTC sensor and safety switch are integrated into the steam generator system to provide automatic temperature monitoring and control. These components enable the system to self-regulate temperature, preventing overheating and ensuring reliable operation without requiring external monitoring or manual intervention, thereby improving reliability while adding only minimal complexity through standardized safety components
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 facilitates efficient, cost-effective assembly, installation, and maintenance by allowing the steam generator to be treated as a single unit, ensuring precise temperature control and preventing overheating, while maintaining the effectiveness of the refreshing and de-wrinkling functions without compromising drying efficiency.
Implementation Method 1
a heater for generating steam from water
Implementation Method 2
a heater for generating steam from water
Implementation Method 3
a water pump for pumping water from the water tank to the heater
Implementation Method 4
incorporating an NTC sensor for accurate temperature control
Implementation Method 5
a steam separator to optimize steam and water separation
Data Source
Figure 1
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Figure 3
AI summary
The steam generator 4 according to the present invention is intended for use in a laundry appliance 1, in particular a refresher dryer 1, wherein the steam generator 4 is a modular unit at least comprising a heater 13 for generating steam from water, a water tank 10 and a water pump 14 for pumping water from the water tank 10 to the heater 13, wherein the heater 13 and the water pump 14 are mounted on top of the water tank 10. The laundry appliance 1 comprises the steam generator 4.