Air Compressor Pressure Threshold Control for Variable Air Demand
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Solution Overview
Problem
Users face difficulties in properly determining and selecting mode settings for air compressors, often setting them to higher modes to ensure sufficient compressed air, leading to reduced compression efficiency, increased motor and component wear, and noise, while lower modes result in insufficient air supply.
Innovation Solution
An air compressor with a pressure detection unit and control unit that dynamically adjusts the motor start and stop pressure values based on usage conditions, reducing motor operation time and load, and optimizing pressure in the tank unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the use mode is set to a higher mode (high pressure mode or ultra-high pressure mode) to ensure sufficient compressed air supply, then the compressed air supply is sufficient, but the compression efficiency is reduced, motor operation time is extended, and component wear increases
Solution Approach 1:
The patent applies dynamics by making the pressure values (motor start pressure value and motor stop pressure value) changeable rather than fixed. The control unit dynamically adjusts these pressure values based on the elapsed time since the last motor stop, allowing the system to adapt its operation to different usage conditions and time periods, thereby optimizing compression efficiency while ensuring sufficient air supply.
Solution Approach 2:
The patent changes the pressure parameters (motor start pressure value and motor stop pressure value) based on elapsed time. By adjusting these parameters dynamically, the system can operate at lower pressure thresholds during periods when less air is consumed, improving compression efficiency and reducing motor wear, while still maintaining sufficient air supply when needed.
2Quantity of substance
If the use mode is set to a higher mode to maintain high pressure in the tank unit, then the compressed air supply is sufficient, but the motor operation time is extended and driving sound is generated for a longer duration
Solution Approach 1:
The control unit dynamically adjusts the motor start and stop pressure values based on elapsed time. This dynamic parameter adjustment allows the motor to operate for shorter durations by changing pressure thresholds, thereby reducing noise and wear while ensuring sufficient air supply is maintained through strategic parameter changes.
3Quantity of substance
If the use mode is set to a higher mode to keep pressure in the tank unit high, then the compressed air supply is sufficient, but high pressure load is applied to components and durability is reduced
Solution Approach 1:
The patent changes the pressure parameters (motor start pressure value and motor stop pressure value) based on elapsed time. By dynamically adjusting these parameters, the system reduces the maximum pressure load applied to components during normal operation, thereby improving durability while still ensuring sufficient compressed air supply when needed through strategic parameter adjustments.
4Productivity
If the use mode is set to a lower mode (low pressure mode or normal pressure mode) to improve compression efficiency, then the compression efficiency is improved, but the compressed air supply becomes insufficient when pressure is lowered
Solution Approach 1:
The patent applies dynamics by making the pressure values changeable based on elapsed time. The control unit dynamically adjusts the motor start and stop pressure values, allowing the system to operate at lower pressure thresholds during periods when less air is consumed, improving compression efficiency, while ensuring sufficient air supply is maintained when needed through strategic parameter changes.
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
This solution reduces energy consumption, prolongs component durability, and minimizes noise by adjusting pressure settings according to usage conditions, ensuring efficient and quiet operation.
Implementation Method 1
a pressure detection unit that detects a pressure value in the tank unit
Implementation Method 2
a motor unit that generates compressed air to be stored in the tank unit
Data Source
AI summary
An air compressor includes a tank unit that stores compressed air, a motor unit that generates compressed air to be stored in the tank unit, a pressure detection unit that detects a pressure value in the tank unit, and a control unit that drives the motor unit when a pressure value in the tank unit detected by the pressure detection unit is equal to or less than a motor start pressure value, and stops the motor unit when the pressure value in the tank unit detected by the pressure detection unit is equal to or greater than a motor stop pressure value. The control unit changes at least either of the motor start pressure value or the motor stop pressure value every time when a predetermined time passed.