Fixed-Container Coffee Brewer for Overheating Control
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Solution Overview
Problem
Existing hot coffee brewing apparatuses suffer from impaired coffee quality due to overheating, inadequate temperature maintenance, and complex valve mechanisms, leading to potential malfunctions and increased costs.
Innovation Solution
A simplified design with a fixed container and integrated heater, featuring a conduit with an inlet valve, one-way valve, and temperature sensors to maintain optimal brewing temperature and fluid distribution, using a switchable pump for controlled brewing and warm keeping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is heated immediately before brewing, then brewing speed is improved, but coffee quality deteriorates due to overheating
Solution Approach 1:
The container is preheated before brewing begins, so that when water is added and brewing starts, the water is already at the optimal temperature range. This preliminary heating action prevents the need for immediate high-temperature heating during brewing, thus avoiding overheating damage to coffee quality while still enabling fast brewing.
Solution Approach 2:
The heating element operates in periodic cycles rather than continuously, with different heating intensities at different stages. Initially, the container is heated to a moderate temperature, then heating is reduced or paused during the actual brewing process to maintain water temperature within the optimal range, preventing overheating while ensuring adequate brewing speed.
2Ease of operation
If a valve mechanism is added to the decanter, then water circulation control is improved, but device complexity increases
Solution Approach 1:
The decanter is designed with a self-draining structure that allows water to circulate automatically based on gravity and pressure differences. The spout positioning and container geometry create natural flow paths that enable water circulation without requiring external valve control mechanisms, thus maintaining operational control while avoiding added complexity.
Solution Approach 2:
The valve function is extracted from the decanter design entirely. Instead of incorporating valves into the decanter, the invention uses the decanter's geometric features (spout positioning, container shape) to achieve the desired water circulation control, removing the problematic valve mechanism while preserving the control function.
3Ease of operation
If the container is made removable, then ease of cleaning is improved, but reliability deteriorates due to connection issues
Solution Approach 1:
The brewing system is segmented into removable modular components (brewing chamber, filter assembly, carafe) that can be easily detached for cleaning. Each segment is designed with simple attachment and detachment mechanisms that maintain reliable connections during operation but allow easy separation when needed, thus achieving both cleaning accessibility and connection reliability.
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
Ensures high-quality coffee by heating to a preset temperature below boiling, maintaining optimal drinking temperature, and reducing complexity and malfunction risks while optimizing energy use.
Implementation Method 1
the heater is in direct heat conducting contact with the container
Implementation Method 2
conduit equipped with an inlet valve and one-way valve with which fresh water can be supplied to the container
Data Source
Figure 1A~1B
AI summary
A hot coffee brewing apparatus (1) with a casing (2) comprising a coffee extractor (3) equipped to receive ground coffee beans, a heater (4), and a container (5) for water used in the extraction of coffee and for receiving the extracted coffee, a circulation path (6) having an input (7) connecting 5 to the container (5) and having an output (8) to the coffee extractor (3), and from which coffee extractor (3) the extracted coffee leaving the coffee extractor (3) will enter into the container (5), wherein the container (5) is immovably placed in the casing (2) and the heater (4) is in direct heat 10 conducting contact with the container (5).