Automatic water-feeding controller

Abstract

The invention relates to an automatic water-feeding controller, which relates to the field of automatic control. The controller comprises a power supply circuit, a transformer, a rectifier filter voltage stabilizing circuit, an automatic control circuit and water sump probes. The power supply circuit comprises a three-phase power supply main switch (DK), a general protecting device (RD1), a main contactor (ZC) and a water pump motor (M). Any two phases of a three-phase power supply are connected with a main contactor coil (ZC) and a secondary protecting device (RD2) respectively. An input end of the transformer (B) is connected with any two phases of the three-phase power supply through power supply input terminals (3, 4), and an output end of the transformer (B) is connected with the rectifier filter voltage stabilizing circuit. The rectifier filter voltage stabilizing circuit consists of rectifier diodes (D1, D2, D3, D4), capacitors (C1, C2), and a three-port manostat (IC) which are in series-in parallel connections. The automatic control circuit consists of relays (J1, J2), triodes (Q1, Q3, Q4, Q5), a controlled silicon (Q2) and resistors (R1, R2, R3, R4, R5, R6) in series-parallel connections. The water sump probes (A, B, C) are connected with the automatic control circuit. The automatic water-feeding controller has the advantages of simple structure, safety and practicability without mechanical transmission control, and can save water and electricity resources.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to an automatic water supply controller for a water pump. Background technique [0002] In daily life, water overflow and water shortage occur from time to time in water tanks or water towers of tap water deep well pumps and some special water supply systems, which waste a lot of water and electricity resources. Some existing automatic water filling controllers on the market have a mechanical transmission control part, which is prone to failure after a long time, and some circuits are more complicated, and the high cost is not conducive to popularization and application. Contents of the invention [0003] The task of the present invention is to overcome the defects of the above-mentioned prior art and provide a water pump automatic water supply controller. The controller has a simple structure, is safe and practical, has no mechanical transmission control, and can save water and ...

AI Technical Summary

Problems solved by technology

[0002] In daily life, water overflow and water shortage occur from time to time in water tanks or water towers of tap water deep well pumps and some special water supply systems, which waste a lot of water and electricity resources

Some of the existing automatic water supply controllers on the market have mechanical transmission control parts, which are prone to failure after a long time, and some circuits are more complicated, and the high cost is not conducive to popularization and application.

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