Refrigerator for drinks
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Solution Overview
Problem
Wine refrigerators face challenges with maintaining drink quality due to the need for frequent replacement of inert gas tanks, oxidation of drinks when air is used, and complex maintenance and washing of fixed tubes for dispensing wine.
Innovation Solution
A refrigerator design with a separate air pump for increasing pressure and a gas tank for injecting unreactive gases, both connected to a supply pipe, allowing for independent operation and easy replacement, and a detachable cover assembly for the injection and discharge pipes for simplified washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas tank is used to inject inert gas into the wine bottle to prevent oxidation, then the drink quality is maintained, but the gas tank requires frequent replacement increasing maintenance cost
Solution Approach 1:
The system is divided into separate functional modules: a reusable control unit with pump and valves, and a replaceable gas cartridge. This segmentation allows the expensive control electronics to be reused while only the consumable gas cartridge needs replacement, reducing overall maintenance costs.
Solution Approach 2:
The gas cartridge is designed as a disposable component that is replaced when depleted, while the main control unit remains reusable. This approach is economically optimal as it separates the reusable control system from the consumable gas supply.
2Productivity
If air is injected into the drink container to increase pressure for discharge, then the discharge function is achieved, but the drink becomes oxidized and flavor changes
Solution Approach 1:
An inert gas (nitrogen or carbon dioxide) is introduced as an intermediary substance to replace oxygen in the headspace of the wine bottle. This intermediary gas allows pressure buildup for discharge while preventing oxidation, as it does not react with the wine.
Solution Approach 2:
The system creates an inert atmosphere inside the wine bottle by injecting nitrogen or carbon dioxide gas. This inert environment prevents oxidation of the wine while still allowing pressure to be built up for dispensing through the pump mechanism.
3Device complexity
If the gas tank is laid on the front lower portion in the dispenser, then the structure is compact, but it requires separation and reinstallation making replacement complicated
Solution Approach 1:
The gas cartridge is designed with dynamic insertion and removal capabilities, allowing it to be easily accessed and replaced from the front of the dispenser without disassembling the unit. The cartridge slides into place and connects automatically to the dispensing system.
4Device complexity
If the tube for discharging drink is fixed in the dispenser, then the structure is simple, but it is difficult to wash the tube
Solution Approach 1:
The dispensing system is segmented into removable components including the wine bottle holder and discharge tube assembly. These components can be separated from the main unit and individually washed, solving the cleaning problem while maintaining structural simplicity.
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
Reduces the consumption of unreactive gases, simplifies pipe structure, and enhances maintenance and washing efficiency, while ensuring drink quality by preventing oxidation.
Implementation Method 1
A pump connection line delivering high-pressure air into a drink container to thereby increase pressure in the drink container
Implementation Method 2
A tank connection line preventing oxidation of a drink in a drink container by delivering an unreactive gas into the drink container
Data Source
AI summary
A refrigerator for drinks is provided. The refrigerator may include a cabinet having a storage compartment therein, and a dispenser nozzle disposed to be at least partially exposed outside the cabinet. A pump connection line being able to increase pressure in a drink container by delivering high-pressure air into the drink container and a tank connection line preventing oxidation of the drink in the drink container by delivering an unreactive gas into the drink container may be disposed in the cabinet. Accordingly, two functions of discharging a drink and preventing oxidation may be individually performed, so consumption of an unreactive gas may be reduced.