Air Pump Auto-Stop Control for Inflation-Deflation Switching
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Solution Overview
Problem
Conventional air pumps lack the ability to automatically switch between inflation and deflation modes and require excessive deflation time, failing to meet market demands.
Innovation Solution
An air pump design incorporating an air flow direction switching device with a movable box and auto-stop control device featuring a deformable pressure sensor and pressure switch, allowing for automatic mode switching and efficient deflation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional air pumps are used with automatic stop function, then inflation can be automated, but the operation mode cannot be switched between inflation and deflation
Solution Approach 1:
The air pump is designed with a universal control system that integrates both inflation and deflation operations into a single device. The control unit can automatically determine and execute different operation modes based on real-time pressure feedback, eliminating the need for separate manual switching mechanisms while maintaining both inflation and deflation capabilities.
Solution Approach 2:
The control system dynamically adjusts its behavior based on real-time pressure sensor feedback. The control unit continuously monitors pressure changes and automatically transitions between inflation and deflation modes without requiring manual intervention, making the system adaptive and versatile.
2Adaptability or versatility
If conventional air pumps are used for deflation, then the deflation function is available, but the deflation time is too long
Solution Approach 1:
The control system implements periodic action by alternating between inflation and deflation cycles. The control unit automatically switches between filling and emptying the inflatable product in periodic intervals, which accelerates the overall deflation process compared to continuous single-direction operation.
Solution Approach 2:
The system creates a controlled environment by using the inflatable product's own internal pressure differential to drive rapid air flow during deflation. The control unit optimizes the pressure gradient to maximize air flow rate, effectively creating an optimal environment for quick deflation.
3Ease of operation
If manual mode switching is required, then operation control is simple, but user labor and time are increased
Solution Approach 1:
The control unit is designed to automatically determine and execute operation modes without requiring user intervention. The system serves itself by using built-in pressure sensors and control algorithms to autonomously switch between inflation and deflation, eliminating manual mode switching while maintaining ease of use through a single power button interface.
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
Enables convenient operation, labor and time savings, and improved performance by allowing seamless switching between inflation and deflation modes and automatic stopping, enhancing market competitiveness.
Implementation Method 1
The auto-stop control device has a deformable pressure sensor and a pressure switch located beside the pressure sensor
Data Source
AI summary
An air pump includes a casing, a blower connected with a motor, an air flow direction switching device, an air valve, and an auto-stop control device. The air flow direction switching device includes a pressure sensor and a pressure switch. The air flow direction switching device includes a movable box and a driving device which drives the movable box. The movable box has an arm and an activation portion. An inflation switch and a deflation switch are electrically connected in parallel to a circuit and are controlled to activate by the activation portion. The pressure switch includes a dynamic contact point connected to the motor, and two static contact points respectively electrically connected to the inflation switch and the deflation switch. The dynamic contact point has a terminal which alternatively contacts the two static contact points.