Storage device using potential generator
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Solution Overview
Problem
Existing food preservation methods using electric fields are limited by complex structures, high current intensity, costly installations, and reduced refrigerator capacity, with electric fields only effective near electrodes and requiring large transformers and high voltages, posing safety risks and inefficiencies.
Innovation Solution
A space potential generator with a transformer, feedback control circuit, and static electricity discharger without a grounding electrode, using low frequency vibration and insulating materials to create a wide-range electric field, allowing for efficient preservation and frying without direct contact with electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrodes are installed to form an electric field for food preservation, then bacteria growth is suppressed and food deterioration is prevented, but the structure becomes complicated and multiple outputs are required
Solution Approach 1:
The patent extracts the essential function of electric field generation from complex electrode systems. By using a single electrode that generates corona discharge, the invention removes the need for multiple electrodes and their associated wiring, while maintaining the food preservation effectiveness through the generated electric field.
Solution Approach 2:
The single electrode design serves multiple functions: it generates the electric field for preservation, creates corona discharge for enhanced effectiveness, and eliminates the need for grounding systems. This multi-functional approach reduces structural complexity while maintaining preservation reliability.
2Area of stationary object
If a large electrode shelf board is installed in the refrigerator to cover the entire space, then the electric field can be formed throughout the refrigerator, but the refrigerator capacity is reduced and installation cost increases
Solution Approach 1:
Instead of uniformly distributing electrodes across the entire refrigerator space, the invention concentrates the electric field generation at a localized corona discharge electrode. This localized approach creates sufficient electric field coverage through discharge propagation without occupying significant refrigerator volume, thus preserving storage capacity.
Solution Approach 2:
The invention changes the operational parameters by using high voltage corona discharge from a small electrode rather than low voltage across large electrode surfaces. This parameter change allows achieving the same electric field coverage effect with minimal physical space occupation.
3Power
If high voltage of 5000 to 10000 V is applied to large electrode shelf boards, then the electric field strength is sufficient for preservation, but electricity costs increase and safety risks arise
Solution Approach 1:
The invention converts the potentially harmful effect of high voltage into a beneficial corona discharge phenomenon. By using controlled corona discharge, the system achieves sufficient electric field strength for preservation while consuming less power and eliminating direct contact hazards, thus converting the harm of high voltage into a safe and effective preservation method.
4Reliability
If electrodes are installed throughout the refrigerator to ensure complete coverage, then preservation effectiveness is maximized, but installation time and facility investment increase
Solution Approach 1:
The invention extracts the preservation function from complex multi-electrode installations and achieves it through a single corona discharge electrode. This simplification dramatically reduces installation time and eliminates the need for extensive facility modifications while maintaining preservation effectiveness through the generated electric field.
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 solution enables downsized, cost-effective preservation and frying systems that maintain refrigerator capacity, reduce energy costs, and ensure safety by forming electric fields over a wide area without corona discharge, effectively extending food freshness and reducing bacteria growth and acrylamide formation.
Implementation Method 1
a transformer (4) that is formed by magnetically connecting a primary coil (2) and a secondary coil (3)
Implementation Method 2
a static electricity discharger (8) that is formed of a conductive material and provided on the other terminal (3b) of the secondary coil (3) via the output control portion (6), wherein the space potential generator does not have a grounding electrode, and discharges a static electricity to a space to form an electric field
Data Source
AI summary
A space potential generator includes a transformer formed by magnetically connecting a primary coil and a secondary coil, a feedback control circuit feeding back one terminal of the secondary coil to one terminal of the primary coil to adjust voltage of the secondary coil, an output control portion provided on the other terminal of the secondary coil to impart low frequency vibration to an output of the secondary coil, a static electricity discharger formed of conductive material and provided on the other terminal of the secondary coil via the output control portion, the space potential generator does not have a grounding electrode, a weak current flowing through the secondary coil is 0.002 to 0.2 A, the static electricity discharger is covered with an insulating member to discharge predetermined static electricity to surrounding space, and electric field of target voltage is formed in the surrounding space by the discharged static electricity.