Vacuum Sealing Box Cover With Automatic Pressure Feedback
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Solution Overview
Problem
Existing manual vacuum-sealing boxes lack automatic pressure monitoring and air extraction capabilities, making it difficult to detect abnormal pressure deviations during storage, particularly for sensitive items like easy-to-oxidize articles and foods.
Innovation Solution
An automatic air-extracting sealing box cover equipped with a pressure sensor, air pump, controller, and touch display screen, which forms a device chamber for automatic pressure measurement and air suction control, ensuring the air pressure value in the storage chamber is maintained within set limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a manual air pump is used for vacuum sealing, then the device complexity is reduced, but the automation level and monitoring capability deteriorate
Solution Approach 1:
The sealing box is equipped with an automatic air extracting apparatus that includes a pressure sensor, controller, and air pump. The pressure sensor continuously monitors the air pressure in the storage chamber, and the controller automatically activates the air pump when pressure deviations are detected, enabling the system to maintain vacuum conditions without manual intervention.
Solution Approach 2:
The system incorporates a pressure sensor that provides real-time feedback on the air pressure conditions within the storage chamber. This feedback mechanism allows the controller to detect pressure changes and automatically activate the air pump to restore proper vacuum conditions, creating a closed-loop control system.
2Device complexity
If a manual air pump is used for vacuum sealing, then the device complexity is reduced, but the response time to detect abnormal pressure deteriorates
Solution Approach 1:
The pressure sensor continuously monitors air pressure and provides immediate feedback to the controller, enabling real-time detection of pressure deviations. This allows the system to respond instantly to air leakage or pressure abnormalities without waiting for manual inspection.
Solution Approach 2:
The pressure sensor operates continuously to monitor air pressure conditions, ensuring uninterrupted surveillance of the storage chamber environment. This continuous monitoring enables immediate detection and response to any pressure changes, eliminating gaps in monitoring that occur with manual inspection methods.
3Extent of automation
If pressure sensor and control circuit are added, then the automation level and monitoring capability are improved, but the device complexity increases
Solution Approach 1:
The controller integrates multiple functions including pressure signal reception from the sensor, automatic activation control of the air pump, and touch display screen control. This multi-functional integration reduces the need for separate dedicated components for each function, thereby managing system complexity while maintaining high automation capabilities.
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 automatic pressure monitoring and air suction, ensuring consistent air pressure in the storage chamber, thereby preventing air leakage and maintaining optimal storage conditions for sensitive items.
Implementation Method 1
a pressure sensor, an air pump and a controller; the power source is connected to power source input ends of the pressure sensor, the air pump and the controller; an air extracting opening of the air pump and a probe of the pressure sensor are located in the storage chamber
Implementation Method 2
it is preferred to extract vacuum or inject an inert gas under a sealing condition... a manual air pump with an air pressure gauge is fixed or detachably connected on the sealing box
Data Source
AI summary
Provided is an automatic air-extracting sealing box cover, comprising a bottom cover and a top cover that are mutually detachably connected, wherein the bottom cover and the bottom cover are connected to form a device chamber, and an automatic air extracting apparatus is mounted in the device chamber; the automatic air-extracting apparatus comprises a power source, a pressure sensor, an air pump, and a controller; the power source is connected to power source input ends of the pressure sensor, the air pump and the controller; an air extracting opening of the air pump and a probe of the pressure sensor project out of a lower surface of the bottom cover; an output end of the pressure sensor is connected to a collection circuit, and an output end of the collection circuit is connected to an input end of the controller; a control signal output end of the controller is connected an on/off control end of the air pump.