Portable coffee brewing apparatus
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Solution Overview
Problem
Current coffee brewing methods, such as the French press, face issues with coffee grounds entering the liquid due to large pore size filters and low water pressure, which affects the taste and strength of the coffee.
Innovation Solution
A portable coffee brewing apparatus with a powder cartridge featuring a second filtering device of lower permeability, combined with a detachable and sealing structure that enhances pressure and filtration precision, and a pushing mechanism to facilitate the movement of the cartridge during brewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If large pore size metal filter screens are used, then the filtering speed is fast, but coffee grounds enter the liquid affecting taste
Solution Approach 1:
The filtering system is divided into two stages: a first filtering device with larger pores for initial filtration and a second filtering device with smaller pores for fine filtration. This segmentation allows the system to achieve both fast filtering speed and high filtering precision by processing coffee liquid through multiple filtering stages in sequence.
2Manufacturing precision
If the powder cartridge uses low permeability filtering, then filtering precision is improved, but the resistance during movement increases making it difficult to insert and remove
Solution Approach 1:
The filtering system is divided into two stages: a first filtering device with larger pores for initial filtration and a second filtering device with smaller pores for fine filtration. This segmentation allows the system to achieve both fast filtering speed and high filtering precision by processing coffee liquid through multiple filtering stages in sequence.
Solution Approach 2:
The sealing structure between the powder cartridge and cup body is designed to be dynamic rather than permanently fixed. The sealing ring can adapt to pressure changes during insertion and removal, providing sufficient sealing during brewing while allowing easy insertion and removal when not under pressure.
3Duration of action of moving object
If the powder cartridge is removed after soaking, then brewing time is controlled, but the low water pressure prevents strong coffee extraction
Solution Approach 1:
The patent introduces a pushing structure that applies mechanical force to the powder cartridge, creating pressure on the coffee liquid. This hydraulic pressure forces coffee liquid through the filtering devices, enabling strong extraction even with controlled brewing time. The pushing mechanism compensates for the low natural water pressure by adding external mechanical pressure.
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 effectively filters coffee grounds from entering the liquid, improving the taste and strength of the coffee by increasing water pressure and simplifying the cartridge's movement, ensuring efficient brewing.
Implementation Method 1
two ends of the powder cartridge are provided with filtering devices which are a first filtering device and a second filtering device, and the second filtering device has a permeability lower than that of the first filtering device
Implementation Method 2
the pushing structure is configured to push the powder cartridge to move in the second container
Implementation Method 3
the upper lid and the bottom lid are in sealing connection with the two ends of the bottle body in a detachable manner
Data Source
AI summary
The present invention discloses a portable coffee brewing apparatus and a using method therefor, and belongs to the technical field of coffee brewing. The apparatus comprises an upper lid, a bottle body, a bottom lid, a pushing structure, and a powder cartridge, wherein two ends of the powder cartridge are provided with a first filtering device and a second filtering device with a permeability lower than that of the first filtering device, the pushing structure is configured to push the powder cartridge to move axially along the bottle body, and the upper lid and the bottom lid are in sealing connection with two ends of the bottle body in a detachable manner. The coffee brewing apparatus of the present invention adopts the second filtering device with a low permeability to filter, which is beneficial to pressurization and infiltration to improve the concentration of the coffee.