Tea Maker Brewing Chamber Control for Temperature and Steep Time
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Solution Overview
Problem
Existing electric tea makers lack user control over the brew process, as they only heat water to boiling point and do not allow adjustment of water temperature, which is crucial for brewing different teas to their optimal flavor, and they do not facilitate termination of the brewing process without removing the tea.
Innovation Solution
A semi-automatic electric tea maker with a vessel that heats 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 brewed tea at a drinking temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If electric kettle type appliances are used to heat water, then water can be brought to boiling temperature, but user control over brew temperature is lost and no adjustment is possible for different tea requirements
Solution Approach 1:
The patent implements dynamic temperature control by allowing the water reservoir to be selectively removable from the heating element. This enables the system to transition between heating mode (reservoir on element) and brewing mode (reservoir off element), providing user control over the brewing process while maintaining the ability to heat water to boiling when needed.
Solution Approach 2:
The patent segments the brewing chamber into perforated and non-perforated portions, allowing selective water flow. The perforated lower portion allows water to pass through during brewing, while the non-perforated upper portion can be isolated using a plunger, enabling precise control over water-tea contact and thus brew temperature and strength.
2Ease of operation
If fully manual plunger-type tea makers are used, then user control over brew process is achieved, but the device cannot maintain water at correct drinking temperature after brewing
Solution Approach 1:
The patent maintains useful thermal action continuously by keeping the heating element engaged with the water reservoir throughout the brewing process. The reservoir remains on the heating element during brewing, allowing the system to maintain optimal brewing temperature and then transition to keeping water at drinking temperature without requiring removal or repositioning of components.
Solution Approach 2:
The patent incorporates temperature sensing and control mechanisms that provide feedback to the heating system. This allows the appliance to monitor water temperature and adjust heating accordingly, ensuring water reaches and maintains the correct brewing temperature and subsequently holds it at optimal drinking temperature after brewing completes.
3Ease of operation
If tea is removed from the appliance to terminate brewing, then brewing control is achieved, but device complexity and tidiness are reduced
Solution Approach 1:
The patent extracts the tea leaves from the brewing environment by using a plunger mechanism that pushes tea leaves up through the perforated chamber and into a collection area. This allows brewing termination without removing the entire chamber or disassembling the device, maintaining structural simplicity while achieving effective brewing control.
Solution Approach 2:
The plunger acts as an intermediary mechanism between the user and the tea leaves. By depressing the plunger, the user initiates a mechanical action that isolates tea from water through the perforated chamber structure, enabling brewing termination without direct manipulation of the tea or complex device disassembly.
4Temperature
If water is heated to various temperatures for different teas, then brew quality is improved, but device complexity increases
Solution Approach 1:
The patent achieves variable temperature control by changing the physical state and position of the water reservoir relative to the heating element. By selectively placing the reservoir on or off the heating element, the system provides distinct temperature regimes (heating vs. maintenance temperatures) suitable for different tea types without requiring complex multi-level temperature adjustment mechanisms.
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, allowing for optimal tea brewing without removing the tea, and keeps the brewed tea at a suitable temperature for drinking, enhancing user convenience and simplicity.
Implementation Method 1
a heating element
Implementation Method 2
a sensor for detecting when the chamber is inserted into the reservoir in a brewing position
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 vessel has a sensor for detecting when the chamber is inserted into the reservoir in a brewing position. The device has a user interface in addition to a brew countdown timer that is activated by the sensor and an indicator for alerting a user that a brew countdown is complete.