Tea Brewing Chamber and Plunger for Temperature-Timed Infusion
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Solution Overview
Problem
Existing electric tea makers lack user control over the brew process, particularly in terms of water temperature and brewing time, which is crucial for optimizing tea flavor, and do not allow for the tea to be kept at a suitable drinking temperature after brewing.
Innovation Solution
A semi-automatic electric tea maker with a vessel that can heat water to various temperatures, features a tea brewing chamber with a perforated lower and imperforated upper portion, and a plunger that isolates tea from the water, along with sensors and timers to prompt the user for brewing initiation and termination, and maintains the tea at a drinking temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fully manual plunger-type tea maker is used, then the device structure is simple, but the user cannot control the brew process including water temperature and brewing time
Solution Approach 1:
The tea maker integrates multiple functions including temperature-controlled heating, automated brewing timing, and plunger operation into a single device. The microprocessor controls heating elements to maintain specific water temperatures while simultaneously managing the brewing countdown timer and coordinating the plunger mechanism, allowing one device to perform what previously required separate manual operations
Solution Approach 2:
The device automatically performs brewing operations without requiring continuous user intervention. The microprocessor monitors brewing time and automatically activates the plunger mechanism when the predetermined brewing period elapses, eliminating the need for manual timing and plunger operation while maintaining precise control over the brewing process
2Adaptability or versatility
If an electric kettle is used to heat water, then water can be brought to boiling temperature, but the user cannot adjust the water temperature or control the brewing process
Solution Approach 1:
The heating system transitions from a simple on/off kettle heater to a dynamically controlled heating element regulated by a temperature sensor and microprocessor. The system can maintain water at specific temperatures (such as 80°C for green tea or 95°C for black tea) by continuously monitoring and adjusting heating power, enabling precise temperature control for different tea types
Solution Approach 2:
A temperature sensor provides continuous feedback to the microprocessor about the water temperature, which then adjusts the heating element accordingly. This closed-loop control system ensures the water reaches and maintains the desired temperature for brewing, while the same microprocessor also manages the brewing timer and plunger activation sequence
3Ease of operation
If the brewing process is fully automated, then user convenience is improved, but the device complexity increases
Solution Approach 1:
The user pre-sets the brewing parameters (tea type, water volume, brewing time) before adding tea leaves and water. The microprocessor stores these preferences and automatically executes the brewing sequence: heating water to the appropriate temperature, waiting for the predetermined time, and then activating the plunger. This preliminary programming minimizes user intervention during the actual brewing process
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 precise control over brew temperature and time, ensuring optimal tea flavor and convenience by allowing the tea to be kept at a suitable temperature for drinking, enhancing user experience and simplicity.
Implementation Method 1
a base cavity containing a heating element... the vessel has the ability to heat water to a variety of ultimate brew temperatures
Implementation Method 2
The vessel has a sensor for detecting when the chamber is inserted into the reservoir in a brewing position
Implementation Method 3
When the bell is fully lowered, it isolates the tea in the chamber from the water around it
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
An electric tea maker device has a vessel with a reservoir having an opening that removably receives a tea brewing chamber. The chamber has an upper portion and a lower portion. The upper portion lacks perforations and the lower portion has perforations. The device has a plunger for the chamber that, when in a depressed position within the chamber, isolates tea from the reservoir. The vessel has a sensor for detecting when the chamber is inserted into the reservoir in a brewing position, a brew countdown timer that is activated by the sensor, and an indicator for alerting a user that a brew countdown is complete.