Portable negative pressure extraction coffee machine
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Solution Overview
Problem
Existing beverage preparation devices, such as coffee and tea makers, are bulky, heavy, and require connection to an electrical network, making them impractical for portable use and difficult to operate outside of a fixed location, lacking a lightweight and easy-to-use solution for infusion preparation.
Innovation Solution
A portable negative-pressure infusion machine with two connected containers, utilizing a battery-operated vacuum pump to separate infusion residue from liquid, allowing for quick, easy, and sensory-enhanced beverage preparation, featuring a filter and a controller for air pump operation, including wireless interfacing options for convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional beverage preparation devices are used, then brewing function is achieved, but the devices are bulky and heavy making them impractical for portable use
Solution Approach 1:
The device is divided into two separate containers: a top container for holding coffee grounds and water, and a bottom container for collecting the brewed coffee. This segmentation allows each component to be minimized in size and weight, making the overall device portable while maintaining full brewing functionality.
Solution Approach 2:
The heavy and complex heating element, pump, and control systems are removed from the portable device. Instead, a simple vacuum pump is used to create negative pressure for brewing, extracting only the essential function needed for portable operation while achieving professional-grade extraction without the bulk of traditional machines.
2Adaptability or versatility
If traditional beverage preparation devices are used, then brewing function is achieved, but connection to electrical network is required making them difficult to operate outside of fixed location
Solution Approach 1:
The device uses a battery-operated vacuum pump that is self-contained within the portable unit, eliminating the need for external electrical network connection. The system is self-sufficient with its own power source, allowing operation anywhere without requiring fixed location infrastructure.
3Manufacturing precision
If negative pressure extraction is used, then sensory characteristics of coffee are improved, but device complexity increases
Solution Approach 1:
Instead of using positive pressure to force water through coffee grounds (traditional method), this device uses negative pressure (vacuum) to pull water through the coffee. This inversion of the pressure approach enables superior extraction of sensory characteristics while using a simpler vacuum pump mechanism rather than complex high-pressure 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 machine provides a lightweight, easy-to-use, and efficient method for preparing coffee and tea, enhancing sensory characteristics while being self-sufficient and easy to manufacture, allowing for infusion preparation anywhere without the need for anchoring or a power source.
Implementation Method 1
a vacuum pump exerts a negative pressure vacuum in the closed chamber
Implementation Method 2
induces liquid in the open chamber to enter the closed chamber under pressure
Implementation Method 3
the filter ensures that the infusion residue remains in the open chamber and there is only passage to the closed chamber of the prepared infusion
Data Source
AI summary
A portable, battery-operated vacuum infusion machine includes a top container assembly with a compartment that houses an air pump, a battery, and a controller. The top container assembly couples to the top opening of a separate bottom container. When coupled together, the top and bottom containers are connected by flow holes superimposed by a filter in the top container. An air pump switched on or off by a controller exerts negative pressure in the bottom container by means of a suction port and induces liquid in the top container to enter the bottom container under pressure while the filter in the top container ensures that the infusion residue is separated from the liquid and only the prepared infusion has passage to the bottom container. The bottom container can be opened by means of removing the top container in order to allow for serving the prepared infusion.