CN2938242Y

CN2938242Y - Prepayment controller of intelligent radio frequency card for pump

Info

Publication number: CN2938242Y
Application number: CN 200620127417
Authority: CN
Inventors: 王念青
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-17
Filing date: 2006-08-17
Publication date: 2007-08-22
Anticipated expiration: 2016-08-17

Abstract

The utility model discloses a prepaid expense controller for water pump with intelligent RF card, which comprises a machine box and a RF card. A main circuit, an information accepting circuit and a pump control circuit are provided in the machine box; a electricity meter (B), an AC contactor(C) and a thermal relay (RJ) are provided in the three phase line of the main circuit; the main body of the information accepting circuit is a RF card reader-writer (KG); the pump is mainly controlled by the AC contactor(C) winding. Buy a card first and bring the card approach to the controller from a small window instead of opening the door of the pump room, and the pump can be started by induction; a LED display can be seen through the small window showing that the number from the card decreases continuously till zero and the pump stops. The pump can be stopped during running by seconds delay after bringing the card approach to the controller again. The pump can continue running within the delay period for changing the card, thereby avoiding the pump stopping and starting frequently to prolong the service life of the pump; the utility model has no keyboard and switch, can be started through the card to avoid damaging of the equipment and to ensure the personal safety.

Description

Intelligent RF card water pump pre-payment controller

Technical field

The utility model relates to a kind of controller, specially refers to the intelligent RF card water pump pre-payment controller that is used for field irrigation.

Background technology

At present, the economic high-speed development of China, water resource is more and more in short supply simultaneously, though country has taked a series of effective measures and policy, but because people have formed old notion for a long time, and the production, the life style that fall behind, make water resource still suffer very big waste.In the face of the water resource of worsening shortages, we change outside the mode of production and life that falls behind except conducting vigorous propaganda the consciousness of saving water that improves people, utilize multiple technological means, rely on outstanding scientific and technological achievement, implement scientific and technological energy-saving and water-saving, so as to reaching the purpose of high-efficiency water-saving.Especially underground water is the main water source of the large stretch of farmland irrigation water of the northern area of China, but the rural area is for the utilization of field irrigation water resource, promptly open the electric brake starting mode of pump, the broad irrigation farmland, the peasant can not in time understand and irrigates institute's water, electric weight at that time, but how much only observe farmland ponding, and there is not economic idea, often cause a lot of unnecessary wastes.

Summary of the invention

The purpose of this utility model is for overcoming above-mentioned weak point, and provides a kind of radio-frequency card to open water pump, the intelligent RF card water pump pre-payment controller of observation post's water consumption and debt at any time.

The utility model is to realize like this, this controller comprises cabinet and radio-frequency card, be provided with main circuit in the described cabinet, receive information circuit and water pump control circuit, the operating voltage of described main circuit is three-phase alternating current 380V, establishes watt-hour meter, A.C. contactor and electrothermal relay on triple-phase line; The main body of the described circuit of receiving information is a rf read-write device, and the stabilized voltage supply joint of this read write line links to each other with a phase line and zero line in the three-phase alternating current of main circuit, and the output signal end of read write line links to each other with diode and auxiliary reclay; Described water pump control circuit also links to each other with a phase line and zero line in the three-phase alternating current of main circuit, the ac contactor coil and the time relay in this circuit are connected in parallel, and are connected in series with thermal relay normally closed contact, A.C. contactor normally opened contact and time relay normally closed contact.

As a kind of improvement of the present utility model; also be provided with in the described water pump control circuit and change not halt circuit of card; be provided with the news Chinese percussion instrument in this circuit, the news Chinese percussion instrument and the described time relay are connected in parallel, and described news Chinese percussion instrument also links to each other with the contact of instantaneous closure, instantaneous break contact and auxiliary reclay.

As another kind of improvement the of the present utility model; be provided with the shutdown delay circuit in the described circuit of receiving information; the closed normally closed contact of the instantaneous off delay of this circuit is connected in parallel with the news Chinese percussion instrument, and the stabilized voltage supply input end with described rf read-write device after it connects is connected in series.

As another kind of improvement the of the present utility model, described ac contactor coil and pilot lamp and normally closed accordingly, normally opened contact are connected in parallel.

As another kind of improvement the of the present utility model, described cabinet is provided with the fenestella for the described radio-frequency card of induction, and it is with lock to add wicket, and this fenestella is corresponding with described rf read-write device.

The utility model intelligent RF card water pump pre-payment controller, it utilizes hyundai electronics, mechanical ﹠ electrical technology and designs, and it is with the medium of radio-frequency card as control information storage, issue, and is used for the control of motor-pumped well pump motor.During use, pump motor is connected in the utility model main circuit, must buys the intelligent RF card earlier when peasant household irrigates the fields, and be input into certain amount of money, will block then, can start water pump near intelligent controller.In the water pump operation, can see directly that by wicket the amount of money on the card constantly reduces, reduce to zero until the amount of money, water pump stops automatically.When operation needs to stop midway, need only be with the close once more controller once of card, water pump can stop, and controller is failed back the remaining amount of money in the intelligent RF card simultaneously.In the time of need starting, get final product by card once more again, use repeatedly, the amount of money in card is zero.Can in time recognize water consumption and debt during the peasant irrigated farmland like this, water is that the notion of commodity is established immediately firmly, and water wasting is exactly expensive, can using water wisely by fair means or foul, can reach the water saving purpose.The utility model is provided with the wicket for the induction radio-frequency card on cabinet, the pump house door of need not fetching boiling water during use, a wicket is opened in the relevant position on the pump house wall, hands radio-frequency card from the rf read-write device of wicket near controller, responds to start water pump.When operation needs to stop midway, only need the close once more controller once of radio-frequency card, the water pump time-delay promptly stopped after several seconds.Also available another card restarts continuous service between this time delay.Owing to be provided with delay circuit in the utility model, after water pump stopped, time-delay just can be restarted after a few minutes, can prevent the water pump frequent start-stop like this, prolonged electrical machinery life.The utility model is not established operation keyboard and various switch, and easy and simple to handle being easy to promoted.Utilize the PORT COM of this controller, can also realize central authorities' control of water pump group.

Description of drawings

Fig. 1 is the utility model intelligent RF card water pump pre-payment controller circuit diagram.

Embodiment

As shown in Figure 1, the utility model intelligent RF card water pump pre-payment controller, comprise cabinet and radio-frequency card, be provided with main circuit in the cabinet, receive information circuit and water pump control circuit, the operating voltage of described main circuit is three-phase alternating current 380V, establishes watt-hour meter B, A.C. contactor C and electrothermal relay RJ on triple-phase line; The main body of the described circuit of receiving information is rf read-write device KG, arbitrary phase line in the power connection of this read write line KG and the three-phase alternating current of main circuit such as C, zero line 0 link to each other, and output signal 3,4 pin of read write line KG link to each other with diode D1, D2 and auxiliary reclay J1, J2; Water pump control circuit also links to each other with arbitrary phase line C, zero line 0 in the three-phase alternating current of main circuit, ac contactor coil C in this circuit is in parallel with time relay sj 2, and is connected in series with the normally closed contact SJ11 of electrothermal relay RJ normally closed contact, A.C. contactor C1 normally opened contact and time relay SJ1.During use, (D) is connected in the utility model main circuit with pump motor.

The utility model also is provided with and changes not halt circuit of card; be that time relay sj 1 in the water pump control circuit is connected in parallel with news Chinese percussion instrument DX1; on news Chinese percussion instrument DX1 and circuit that the main circuit zero line is connected, be connected with the circuit of the contact parallel connection of instantaneous closed break contact SJ12 and auxiliary reclay J1; in A.C. contactor C1 normally opened contact and the contact that is connected with auxiliary reclay J2 between time relay sj 1 is connected, change not halt circuit of card thereby form.Be provided with the shutdown delay circuit in the circuit of receiving information of the present utility model; closed normally closed contact SJ21 of the instantaneous off delay of this circuit and news Chinese percussion instrument DX2 are connected in parallel; its stabilized voltage supply WY input end that connects back and rf read-write device KG is connected in series, and shuts down delay circuit thereby form.The utility model and ac contactor coil C are connected in parallel also have pilot lamp A1, A2 and often open accordingly, normally closed contact C21, C22, the working condition of being convenient to observe water pump like this.Easy to operate in order to use, the utility model is provided with the fenestella for the induction radio-frequency card on cabinet, and this fenestella is corresponding with described rf read-write device KG.Rf read-write device KG of the present utility model can adopt the common read write line that can respond to radio-frequency card, and the utility model mainly is that employing sfm002 is main type.

Principle of work:

When just having served electricity for the utility model controller, ac contactor contact C21 closure, pilot lamp A1 lights, and indicates this controller charged.At this moment electrothermal relay RJ normally closed contact closure, time relay normally closed contact SJ11 closure, A.C. contactor normally opened contact C1 disconnects, and A.C. contactor C is in waiting status.

When need starting water pump, with radio-frequency card near read write line KG, 3 seconds of read write line KG output negative level, diode D2 conducting, auxiliary reclay J2 adhesive, the normally opened contact 4-5 closure of J2, make A.C. contactor C adhesive, A.C. contactor normally opened contact C connects, and pump motor starts.Normally opened contact C1 closure keeps C adhesive always simultaneously.Normally closed contact C21 disconnects simultaneously, normally opened contact C22 closure, and pilot lamp A1 extinguishes, and pilot lamp A2 lights.The 4-5 of auxiliary reclay J2 disconnects after 3 seconds, 4-6 normally closed contact closure.In the water pump operation process, can see directly that from read write line KG wicket the amount of money the card reduces gradually.

In the time of need stopping, to block near read write line KG, 3 seconds of read write line KG output positive level then, diode D1 conducting, auxiliary reclay J1 adhesive, contact 1-2 closure, make time relay sj 1 adhesive, time relay sj 1 picks up counting, and news Chinese percussion instrument DX1 begins alarm, while normally opened contact SJ12 closure, retention time relay SJ1 conducting always.After arriving setting-up time, time-delay disconnects instantaneous closed normally closed contact SJ11 and disconnects, and contactor C dead electricity disconnects, and main circuit disconnects, and water pump quits work.When the no show setting-up time, time-delay disconnects instantaneous closed normally closed contact SJ11 and does not disconnect, exchange contact C and keep adhesive, during this period of time, an interchangeable card starts once more, then make the 4-5 closure of auxiliary reclay J2,4-6 disconnects, and time relay sj 1 dead electricity is disconnected, and stops timing, but because time-delay disconnects still closure of instantaneous closed normally closed contact SJ11, main circuit works on.When the amount of money in the radio-frequency card reduced to zero, motor stopped automatically, and process is the same.After motor stopped, outage time delay relay SJ2 picked up counting, the instantaneous disconnection of the closed normally closed contact SJ21 of simultaneously instantaneous off delay, and news Chinese percussion instrument DX2 begins alarm, and stabilized voltage supply WY disconnects, and rf read-write device KG dead electricity can not start.After time of arrival, time closing normally closed contact SJ21 closure, rf read-write device KG gets electric, can start.The utility model increases the purpose of two time relays for avoiding the motor frequent start-stop, with the protection motor.

When situations such as power supply phase shortage, overcurrent, overload, the electrothermal relay RJ in the main circuit disconnects A.C. contactor C automatic cutout, keeps motor not to be damaged; In addition, managerial personnel can be at any time hold the reading of three phase watt-hour meter B and user that institute's water consumption compares inspection in the radio-frequency card.

Claims

1, a kind of intelligent RF card water pump pre-payment controller, it is characterized in that: this controller comprises cabinet and radio-frequency card, be provided with main circuit in the described cabinet, receive information circuit and water pump control circuit, the operating voltage of described main circuit is three-phase alternating current 380V, establishes watt-hour meter (B), A.C. contactor (C) and electrothermal relay (RJ) on triple-phase line; The main body of the described circuit of receiving information is rf read-write device (KG), stabilized voltage supply (WY) joint of this read write line (KG) links to each other with a phase line and zero line (O) in the three-phase alternating current of main circuit, and the output signal of read write line (KG) (3,4) pin links to each other with diode (D1, D2) and auxiliary reclay (J1, J2); Described water pump control circuit also links to each other with a phase line and zero line (O) in the three-phase alternating current of main circuit, ac contactor coil in this circuit (C) is connected in parallel with the time relay (SJ2), and is connected in series with electrothermal relay (RJ) normally closed contact, A.C. contactor (C1) normally opened contact and time relay normally closed contact (SJ11).

2, intelligent RF card water pump pre-payment controller according to claim 1; it is characterized in that: also be provided with in the described water pump control circuit and change not halt circuit of card; be provided with news Chinese percussion instrument (DX1) in this circuit; news Chinese percussion instruments (DX1) are connected in parallel with the described time relay (SJ1), and described news Chinese percussion instrument (DX1) also links to each other with the contact of instantaneous closure, instantaneous break contact (SJ12) and auxiliary reclay (J1, J2).

3, intelligent RF card water pump pre-payment controller according to claim 1 and 2; it is characterized in that: be provided with the shutdown delay circuit in the described circuit of receiving information; this circuit closed normally closed contact of instantaneous off delay (SJ21) is connected in parallel with news Chinese percussion instruments (DX2), and stabilized voltage supply (WY) input end with described rf read-write device (KG) after it connects is connected in series.

4, intelligent RF card water pump pre-payment controller according to claim 1 and 2 is characterized in that: described ac contactor coil (C) and pilot lamp (A1, A2) and normally closed accordingly, normally opened contact (C21, C22) are connected in parallel.

5, intelligent RF card water pump pre-payment controller according to claim 1 and 2 is characterized in that: described cabinet is provided with the fenestella for the described radio-frequency card of induction, and it is with lock to add wicket, and this fenestella is corresponding with described rf read-write device (KG).