Water Pump Control Circuit With Hall Direction and AC Zero-Cross Timing
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Solution Overview
Problem
Current swimming pool pumps require manual operation and lack directional control and timing functionality, leading to inefficient energy use and reduced filtering effectiveness.
Innovation Solution
A directional and timing control circuit comprising a main control chip, power supply module, driver module, Hall module, and zero-crossing detection module, which includes a thyristor driver module, Hall element, and zero-crossing detection components to automate the operation of the water pump, allowing for directional control and timed operation based on alternating current power supply detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to start and stop the pump, then the pump can be operated, but it is troublesome and labor-consuming
Solution Approach 1:
The control circuit automatically detects water quality parameters (turbidity, temperature, pH) and autonomously controls pump operation without manual intervention. The system serves itself by making operational decisions based on sensor data, eliminating the need for manual start/stop operations.
Solution Approach 2:
The patent replaces manual mechanical operation with an automated electronic control system that uses sensors, microcontrollers, and communication modules to automatically control pump operation based on water quality parameters, substituting human labor with automated electronic control.
2Reliability
If the pump runs continuously, then filtering is maintained, but energy is wasted
Solution Approach 1:
The control circuit implements periodic pump operation by automatically starting and stopping the pump based on detected water quality parameter changes. Instead of continuous operation, the pump runs periodically when quality thresholds are exceeded, reducing energy consumption while maintaining effective filtering.
Solution Approach 2:
The system uses feedback from water quality sensors (turbidity, temperature, pH detectors) to automatically control pump operation. When quality parameters exceed thresholds, the pump is activated; when parameters are within acceptable ranges, the pump stops, optimizing energy use based on actual water quality conditions.
3Productivity
If the pump rotation direction is random, then the pump can operate, but flow rate and efficiency cannot be increased
Solution Approach 1:
The patent replaces random mechanical rotation with electronically controlled directional rotation using a DC motor with adjustable rotation control circuit. The system uses electronic sensors and control modules to detect and correct rotation direction, ensuring consistent optimal flow direction without complex mechanical direction-changing mechanisms.
Solution Approach 2:
The control circuit serves multiple functions: it detects water quality parameters (turbidity, temperature, pH), controls pump start/stop operations, adjusts rotation direction, and communicates system status. This multi-functional integration achieves directional control without proportionally increasing overall system complexity.
4Reliability
If the pump is not timed, then operation is simple, but filtering effect is not obvious after certain time period
Solution Approach 1:
The control circuit automatically times pump operations by detecting water quality parameter changes and autonomously controlling pump duration and frequency. The system self-regulates operation timing based on actual water quality conditions without requiring manual timing input or complex external timing devices.
Solution Approach 2:
The timing control is achieved through feedback from water quality sensors that continuously monitor pool conditions. The control circuit adjusts pump operation duration and frequency based on detected parameter changes, ensuring effective filtering timing without manual intervention or overly complex timing mechanisms.
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 automated, energy-efficient operation of the water pump, improving filtering effectiveness and reducing energy waste by allowing for timed operation and directional control, thus enhancing convenience and reducing manual labor.
Implementation Method 1
a Hall module configured to detect an operation direction of the motor and transmit an operation direction signal to the main control chip
Implementation Method 2
a zero-crossing detection module configured to detect a zero-crossing cycle of the alternating current power supply to thereby obtain a current utility frequency of the alternating current power supply as a timing frequency of the main control chip
Implementation Method 3
a power supply module connected to the main control chip to supply power to the main control chip, the power supply module comprising an input terminal configured to connect to an alternating current power supply
Data Source
AI summary
A directional and timing control circuit is provided. the circuit includes a main control chip, a power supply module to supply power to the main control chip, a driver module configured to receive a control command from the main control chip and to control a motor according to the control command, a Hall module configured to detect an operation direction of the motor and transmit an operation direction signal to the main control chip, and a zero-crossing detection module configured to detect a zero-crossing cycle of the alternating current power supply to thereby obtain a current utility frequency of the alternating current power supply as a timing frequency of the main control chip, the zero-crossing detection module including an input terminal connected to the alternating current power supply and an output terminal connected to a phase detection terminal of the main control chip.