Handheld appliance
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Solution Overview
Problem
Handheld appliances that require water tanks, such as fabric steamers, face the inconvenience of needing to wait for the device to cool down before refilling the water tank, and increasing the tank size results in an undesirable weight increase.
Innovation Solution
A handheld appliance design featuring a primary water tank connected to a cradle with a secondary water tank, allowing for immediate refilling without cooling down, while maintaining a lightweight and comfortable form factor through a system of valves and pumps that facilitate continuous steam emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the water tank size is increased to extend operation time, then the duration of action is improved, but the weight of the appliance increases
Solution Approach 1:
The water storage system is divided into two separate tanks: a primary water tank integrated into the handheld appliance and a secondary water tank located in the base station. This segmentation allows the appliance to remain lightweight while the base station provides additional water capacity, resolving the contradiction between extended operation time and portable weight.
2Productivity
If the water tank is refilled immediately after use, then the productivity is improved, but the temperature of the appliance must be reduced first
Solution Approach 1:
A transfer pump acts as an intermediary device that moves water from the secondary tank in the base station to the primary tank in the handheld appliance. This mediator enables refilling operation independent of the appliance's temperature state, allowing immediate refilling without waiting for cooling.
Solution Approach 2:
The base station pre-stores water in the secondary tank before it is needed. When refilling is required, the pre-stored water is quickly transferred to the primary tank via the pump system, enabling rapid refilling without requiring the appliance to cool down first.
3Duration of action of moving object
If a larger water tank is used to avoid frequent refilling, then the duration of action is improved, but the weight of the appliance increases
Solution Approach 1:
The solution moves the additional water capacity from the vertical dimension (larger tank in handheld appliance) to a separate spatial dimension (secondary tank in base station). This dimensional separation allows the appliance to maintain its lightweight, portable form factor while the base station provides extended water supply capacity.
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 continuous use without interruptions, as the secondary water tank refills the primary tank quickly, ensuring extended operation time without the need for cooling and maintaining a lightweight appliance.
Implementation Method 1
a pump in the cradle that moves water from the secondary water tank to the primary water tank
Implementation Method 2
a heater in the housing
Implementation Method 3
a float valve in the primary water tank that opens or closes based on a water level in the primary water tank
Data Source
AI summary
An appliance includes an appliance unit having a housing with the housing having steam emission holes, a heater in the housing, a primary water tank in the housing, and a cradle that is removably connectable to the appliance unit. The cradle has a secondary water tank that can communicate with the primary water tank when the appliance unit is connected to the cradle.