CN2617962Y - Automatic electronic water pump controller - Google Patents

Abstract

The utility model provides an automatic electronic water pump controller which is mainly composed of a drive relay, an electronic switch, a trigger and a water level monitoring electrode, wherein the monitoring electrodes are installed at the upper limit and the lower limit sites set in a water storing tank. The water level change in the tank is used for triggering the electronic switch to be turned on and turned of so as to control a motor of a water pump to stop and rotate, and thus, pumping automatization is realized. The controller has the advantages of simple structure, easy installation, less power consumption, convenient use, safety and reliability, and can work once connected with a circuit. The machine automatically starts when water is in shortage, and the machine automatically stops when the water is full. The utility model needs no labor management and is especially suitable for a countryside to use.

Description

Full-automatic water pump electronic controller

(1) technical field:

The utility model relates to controller, a kind of full-automatic water pump electronic controller of more specifically saying so.

(2) background technique:

In the rural area of motor-pumped well for water, the perhaps tall building of hydraulic pressure deficiency, often to set up water tower or water reservoir to draw water with electric pump, the control electric pump generally uses knife switch or push-button switch, open, close very important person's operation, both wasted time, take the labour again, in case careless and inadvertent, lead to the spilling water accident easily.

(3) model utility content:

The purpose of this utility model provides a kind of full-automatic water pump electronic controller, and it need not labor management, can be limited in the setting range water storage, and Auto Power On draws water during lack of water, takes out full back autostop.

In order to achieve the above object, the technological scheme that the utility model is taked is: this full-automatic water pump electronic controller comprises tank, suction pump and motor, it is characterized in that it also comprises:

---a relay, its control contact and pump motor are in series, and are connected on the two ends of ac power supply, and its electromagnetic coil is connected across between the output terminal of a DC electrical source B+ and an electronic switch;

---the input end of electronic switch is connected with the output terminal Q of a R-S trigger;

---a water level upper limit electrode a who is installed in tank top is connected with the input end R of trigger;

---a water level lower limit electrode b who is installed in the tank bottom is connected with the input end S of trigger;

---a power electrode c who is installed in tank near the bottom is connected on the DC electrical source B+;

---rectification, filtering, voltage stabilizer provide stable dc supply to described electronic switch, trigger.

The utility model has the advantages that: 1, simple in structure, install easily, little power consumption, esy to use, safe and reliable, put in circuit just can work.2, it is upper and lower spacing to be provided with water level, can guarantee the tank normal water supply, and Auto Power On draws water during lack of water, and water has been expired autostop, without labor management.

(4) description of drawings:

Fig. 1 is the installation wiring schematic diagram of this controller.

Fig. 2 is the internal circuit diagram of controller.

(5) embodiment:

In Fig. 1, the 1st, controller shell, the 2nd, wiring terminal, the 3rd, tank (pond), the 4th, conduit pipe, M are pump motors, and a is the upper limit electrode of water level, and b is the lower limit electrode of water level, and c is the electrode of DC electrical source B+, the direction of arrow is water (flow) direction.Stretching into three electrodes in pond will determine length by the maximum height limit of setting, and should select sectional area 0.2～0.6cm for use ²The single hard core copper cash of tape insulation foreskin is made, and the long insulated hull of 5cm is peelled off as probe in the termination, and three electrode wire band together, vertical unsettled being fixedly mounted in the pond, and nethermost power electrode line should grow 5cm than lower limit electrode wire, but at the bottom of must not contact chamber.

Fig. 2 is the internal circuit diagram of controller, is made up of relay, electronic switch, trigger, detect probe and the rectifying and wave-filtering voltage stabilizer of carrying out action.Among the figure, K is the Electromagnetic Drive coil of relay, and K1, K2 are the control contacts, are in series with the motor M that drives water pump, are connected on the ac power supply.V1 is a transistor, and model is C1815, makes electronic switch usefulness, and VD3 is the semiconductor diode that is used to protect V1, punctures V1 to prevent the instant reverse induction electromotive force that K produces.VD1, VD2 are light emitting diodes, and R4, R5 are their current-limiting resistances, make red green tutorial light usefulness, and reflection is shut down, the work two states.R3 is the current limliting isolation resistance.IC2 is an integrated package, and model is NE555, makes trigger usefulness, wherein, Q is an output terminal, and R, S are two input ends, and 4 pin are preferential reset terminal MR, directly on high level for preferentially resetting, 5 pin are control ends, and 8 pin are power ends, and 1 pin is a grounding end, and resistance R 2, R3, capacitor C 3 are peripheral cells.This trigger is a bistable, presses the work of R-S triggering mode.In three electrode wire, a is a water level upper limit electrode, and b is a water level lower limit electrode, and c is the power line electrode.Transformer T1, bridge rectifier U, filter capacitor C1 and three-terminal voltage-stabilizing ic chip 1 be common to constitute rectification, filtering, voltage stabilizer, provides the operating voltage of direct current 15V, 5V to circuit, and 1 pin of IC1 is that input end, 2 pin are that grounding end, 3 pin are output terminal.

The working procedure of circuit:

1, original state: establish in the pond still anhydrous, at this moment three electrode a, b, c are unsettled, after controller is connected power supply, input end S=0, the R=0 of trigger, output terminal Q=1 is high level, the V1 base stage obtains the bias current saturation conduction, K gets electric, and contact-actuating K1, K2 adhesive are connected motor power driving water pump and begun to draw water.

2, pump process: because pump working constantly draws water, the pond middle water level constantly rises, when rising to the lower limit electrode, 2 of c, b connect by water, when VDC is added to the S end, though this moment, S=1, R=0 still kept Q=1 constant according to the logical relation of circuit, water pump continues to draw water, when water level rises in limited time, c, b, 3 of a all are communicated with, and at this moment the state of circuit is: S=1, R=1, Q=0, and V1 ends, the K dead electricity, K1, K2 discharge, and disconnect motor power, and water pump stops pumping.Along with the use of water, the pond middle water level progressively descends, when breaking away from upper limit a point; though R=0 at this moment, S=1 is still keeping Q=0 constant according to the logical relation of circuit; when water level continues to drop to disengaging b point; R=0, S=0, Q upset=1, starting electrical machinery draws water again; state when getting back to beginning; after this repeat said process, thereby Auto Power On draws water when having realized lack of water, mend full back autostop.The bright expression start of VD1 (green), the bright expression of VD2 (redness) is shut down.

Claims (1)

1, a kind of full-automatic water pump electronic controller comprises tank, suction pump and motor, it is characterized in that it also comprises:

---a relay, its control contact and pump motor are in series, and are connected on the two ends of ac power supply, and its electromagnetic coil is connected across between the output terminal of a DC electrical source B+ and an electronic switch;

---the input end of electronic switch is connected with the output terminal Q of a R-S trigger;

---a water level upper limit electrode a who is installed in tank top is connected with the input end R of trigger;

---a water level lower limit electrode b who is installed in the tank bottom is connected with the input end S of trigger;

---a power electrode c who is installed in tank near the bottom is connected on the DC electrical source B+;

---rectification, filtering, voltage stabilizer provide stable dc supply to described electronic switch, trigger.