Baby Bottle Sterilizer with Dynamic Heating and Thermal Switch
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Solution Overview
Problem
Existing electric steam sterilizers for baby bottles are inefficient due to their long sterilization and drying times, often requiring users to wait excessively, and are costly due to the need for sophisticated electronic controls and fans.
Innovation Solution
A sterilizing apparatus with a heated base, a forced air flow device, and thermomechanical control that operates in two modes: sterilization and drying, using a thermally sensitive switch to manage the transition between modes independently, reducing costs and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a low power heating element is used to heat water and produce steam, then the device is simpler and cheaper, but the sterilization process takes a considerable amount of time
Solution Approach 1:
The heating element power is made dynamic by using two different power levels: a first power level during the sterilization phase and a second, higher power level during the drying phase. This allows the system to adapt its heating intensity to the specific requirements of each phase, resolving the contradiction between simplicity and efficiency.
Solution Approach 2:
The heating element operates in periodic cycles with two distinct power levels. During the sterilization period, it operates at the first power level to generate steam. During the drying period, it operates at the second power level to evaporate moisture. This periodic action allows the system to achieve both simplicity and high productivity.
2Productivity
If a fan is added to speed up the drying process, then the drying time is reduced, but the device becomes more expensive due to additional components and electronic controls
Solution Approach 1:
The system uses its own heating element to perform the drying function instead of requiring an external fan. By operating the heating element at a higher power level during the drying phase, the system achieves rapid drying without adding complex control systems or mechanical components, thus resolving the contradiction between productivity and device complexity.
Solution Approach 2:
The heating element is designed to perform multiple functions: steam generation during sterilization and moisture evaporation during drying. This multi-functionality eliminates the need for separate drying components like fans, thereby reducing device complexity while maintaining high drying efficiency.
3Extent of automation
If sophisticated electronic controls are used to manage sterilization and drying modes, then the control precision is improved, but the manufacturing cost increases
Solution Approach 1:
The patent replaces sophisticated electronic controls with a simpler thermal feedback mechanism. A temperature sensor detects when the chamber has dried out (temperature rises above a threshold), automatically triggering the transition from sterilization to drying mode. This mechanical/thermal substitution maintains precise control while significantly reducing manufacturing costs.
Solution Approach 2:
The system uses temperature feedback to automatically control the transition between sterilization and drying modes. When the temperature sensor detects that the chamber temperature has risen above a predetermined threshold (indicating dry conditions), it automatically switches the heating element to the drying power level. This feedback mechanism provides precise automation without requiring complex electronic control systems.
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
The apparatus significantly reduces sterilization and drying times, making it more user-friendly and cost-effective by leveraging simple, reliable components to control the steam generation and air flow, ensuring rapid and thorough sterilization and drying of baby bottles.
Implementation Method 1
the electrical heating element is supplied with electrical power via the electrical power supply circuit, thereby heating the heated base and thus heating water, in use, within the chamber to produce steam
Implementation Method 2
the forced air flow device is supplied with electrical power via the electrical power supply circuit, thereby directing air into the chamber
Implementation Method 3
a thermally sensitive switch arranged in the electrical power circuit in series with the forced air flow device and arranged within the apparatus to detect a temperature of the heated base
Data Source
AI summary
An apparatus for sterilizing objects includes a chamber with a heated base in thermal communication with an electric heating element; a forced air flow device arranged to direct air into the chamber; an electrical power supply circuit; a thermomechanical control in series with the electric heating element and arranged to detect a temperature of the heated base; and a thermally sensitive switch in series with the forced air flow device and arranged to detect a temperature of the heated base. The apparatus is configured to operate in a sterilization mode and in a drying mode.