CN203286093U

CN203286093U - Quasi-electron control circuit of ceramic seal electrically operated valve

Info

Publication number: CN203286093U
Application number: CN2013200864546U
Authority: CN
Inventors: 杨志光
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-11-13
Anticipated expiration: 2023-02-26

Abstract

The utility model discloses a quasi-electron control circuit of a ceramic seal electrically operated valve. A reducer motor arranged in a valve is driven to rotate normally and reversely so as to enable a ceramic seal valve core to rotate at 90 degrees in a fan shape in a reciprocating mode, and therefore opening and closing of the valve are realized. The full electronic control circuit is composed of a commutating and voltage-stabilizing circuit, a power on-off identification circuit, a Farah capacitor charging time delay circuit, a valve opening and closing state trigger circuit, a ceramic seal valve core clockwise rotating 90-degree limiting stroke switch, an anticlockwise rotating 90-degree limiting stroke switch and a normal and reverse current amplifier for the reducer motor. A control circuit board is arranged in a sealing box of a valve body. After being powered on, the control circuit provides normal direction currents for the reducer motor to drive the valve to be opened. After being powered off, a Farah capacitor in the circuit continues to supply electricity and output reverse currents to the reducer motor, so that the valve is closed. The two stroke switches form dynamic stroke rotating limiting control at 90 degrees with a ceramic seal valve core main shaft. When the ceramic valve core rotates to an opening or closing limiting point, the circuit automatically stops to output currents.

Description

The accurate electronic control circuit of ceramic seal mortor operated valve

Technical field

The utility model relates to the accurate electronic control circuit of a kind of ceramic seal mortor operated valve, this control circuit can be according to the variation of externally fed state, export the sense of rotation that electric current forward or backwards changes the built-in reducing motor of valve and ceramic sealing valve cone, realize the unlatching of valve or close.

Background technique

the dynamic seal (packing) medium of traditional electrical magnet valve all adopts rubber material, the unlatching of valve relies on outside power supply, all the time be connected with the electric current of hundreds of milliampere after opening in electromagnetic coil, power consumption in its electromagnetic coil is directly proportional to the flow latus rectum to the withstand voltage of valve (though there is no follow current after impulse electromagnetic valve is opened, but reduce the withstand voltage and flow of valve, in the environment at " zero " pressure of supply water uses, valve can not normally be opened usually), closing of valve is to borrow power resetting in spring, therefore in application, reliability is low, power consumpiton is large, especially being not suitable for long-time energising uses.

Conventional mortor operated valve is with the form appearance of ball valve, dish valve, piston valve, and the sealing medium of its ball valve is macromolecular material, the withstand voltage height of ball valve energy, but non-refractory, and working life is short.Dish valve, piston valve energy heatproof are high, but withstand voltage low, sealing characteristics is poor, and above valve need to be equipped with the final controlling element that separates with valve body usually, so also have certain narrow limitation in application.

Summary of the invention

The ceramic seal technology has high temperature resistant, high pressure resistant, long lifetime and does not fear the advantages such as condition of water quality as the dynamic sealing means of valve, so the structural design of ceramic seal mortor operated valve (application of mechanical structure model utility is submitted to separately) is the base case as this practical sexual type.The utility model provides a kind of ceramic sealing valve cone that drives to realize the accurate electronic control circuit of ceramic seal mortor operated valve of 90 ° of fan-shaped round rotations in angle.This control circuit is clockwise rotated 90 ° of position limit switches, is rotated counterclockwise 90 ° of position limit switches and by reducing motor provides the amplification circuit of forward and backward electric current, formed by bridge rectifier, integrated regulator, power supply and outage recognition circuit, farad capacitor charging delay circuit, valve opening and closed condition trigger, ceramic sealing valve cone respectively, the control circuit panel assembly is in the sealing case of ceramic seal electric main valve, the control circuit input end connects the ABAP Adapter of electric valve, and the built-in reducing motor of the output terminal of control circuit and electric valve is connected.After energising, control circuit provides forward current to reducing motor, and the built-in reducing motor of valve turns clockwise, and transmits ceramic sealing valve cone through the torsion of master and slave gear and rotates counterclockwise, and valve is opened gradually.After outage, the farad capacitor in circuit continues to circuit supply, and control circuit is exported back current to reducing motor, and valve is closed gradually.Two limitation travel switches are fixed on the positive of control circuit board and with the main shaft structure dynamic contact hairdo rotary stopper at an angle of 90 of ceramic sealing valve cone, control, after electric valve is opened fully or is closed fully, the output of the forward and reverse electric current of circuitry automatic stop.

The scheme that its technical problem that solves the utility model adopts is: adopt the enclosed switch parts of the ceramic sealing valve cone of counterclockwise 90 ° of angles unlatching as electric valve, select the driven unit of the minitype speed reducing motor of 5V VDC as ceramic sealing valve cone.For guaranteeing that the ceramic sealing valve cone rotating spindle is on the rotary stopper point that spool opens and closes, can accurately touch two lead limit switches on control circuit board, control circuit board is provided with large and small two through holes, the ceramic sealing valve cone rotating spindle passes macropore wherein, driving gear on reducing motor takies aperture, and the fan-shaped driven gear that band is automatically connected on the ceramic sealing valve cone rotating spindle is realized the unlatching of valve or closes.The power input unit of control circuit is comprised of bridge rectifier MB6S and integrated regulator 7805, wherein bridge rectifier MB6S has dual functions, can be considered rectification circuit when ABAP Adapter is input as alternating voltage, MB6S can realize the automatic conversion (need not distinguish positive and negative polarity during the DC electrical source access) of the positive and negative polarity of input power when ABAP Adapter is input as VDC.Circuit adopts four AND NOT gate CD4011 to form power supply and outage recognition circuit and farad capacitor charging delay circuit, power supply can be screened automatically with the recognition circuit that cuts off the power supply to be had, the non-transformer access, exports respectively the logic level of " unlatching " or " closing " to two state flip-flops.Because the close current of this electric valve is provided by farad capacitor, can thoroughly close for guaranteeing the down circuitry late gate, farad capacitor must contain enough electric weight, be provided with farad capacitor charging delay circuit in circuit for this reason, be magnitude of voltage on farad capacitor during lower than 1.4V, second 4 pin of AND NOT gate CD4011 after energising, do not have " unlatchings " level and export, reducing motor can not rotate, and valve can not be opened.When the magnitude of voltage on farad capacitor charged to greater than 1.4V, 4 pin of AND NOT gate CD4011 just can be exported " unlatching " level.Control circuit is provided with " unlatching " and " cutting out " two state flip-flop CD4013, is controlled by respectively the triggering of CD4011 " unlatching " or " closing " level, for reducing motor forward and backward current amplification circuit provides corresponding logic level.After the access externally fed, control circuit namely has forward current output driving reducing motor to clockwise rotate, torsion transmission by master and slave gear, ceramic sealing valve cone is rotated counterclockwise 90 ° during to " unlatching " limit point, the driven tooth sector rotational travel driving lever that is connected on the ceramic valve core rotating spindle will be touched the counterclockwise limitation travel switch that " unlatching " holds, " unlatching " state flip-flop is immediately by zero setting, current amplification circuit stops forward current output, reducing motor stops forward rotation, and control circuit is in little power consumption state of dormancy.after the disconnecting external power supply, farad capacitor in circuit continues to circuit supply, by the level conversion of power supply with outage recognition circuit and " closing " state flip-flop, control circuit output back current drives reducing motor and rotates counterclockwise, when ceramic sealing valve cone turns clockwise 90 ° during to " closing " limit point, the driven tooth sector rotational travel driving lever that is connected on the ceramic valve core rotating spindle will touch again the clockwise limitation travel switch that " closing " holds, " close " state flip-flop namely by zero setting, current amplification circuit stops back current output, reducing motor stops backward rotation, control circuit enters holding state.

The beneficial effects of the utility model are: the ceramic seal mortor operated valve is compared with conventional guide electromagnetic valve to have high pressure resistant, high temperature resistant, valve and can thoroughly open under the water supply conditions of " 0 " pressure.This control circuit has very wide in range voltage adaptation scope, but under the condition of power supply of 9V to 20V AC and DC equal stable operations,, because control circuit is integrated in electric main valve inside, therefore can directly replace the direct current guide electromagnetic valve of 12V to 24V.The static follow current of this circuit only has one of percentage of guide electromagnetic valve after valve opening, so valve can be opened for a long time.Contrast and the mortor operated valve of other type, have good seal performance, long service life, volume small flow large, need not configure the final controlling element of electric valve special use and have the function that the outage valve is closed automatically.

Description of drawings:

Fig. 1 is the electromechanical structure plan view of ceramic seal mortor operated valve

Fig. 2 is the cross-section structure distribution map of ceramic seal mortor operated valve

Fig. 3 is circuit theory diagrams of the present utility model

Fig. 1, each parts in Fig. 2 are: 1. power input plug, 2. power input plug, 3. reducing motor combination hub, 4. power interface combination hub, 5. reducing motor driving gear, 6. fan-shaped driven gear, 7. tooth sector rotational travel driving lever, 8. valve water inlet active interface, 9. valve water outlet active interface, 10. valve body waterproof sealing rubber pad, 11. ceramic sealing valve cone, 12. spool gland and control circuit timbering, 13. control circuit board, 14. reducing motor, 15. waterproof sealing lid, C9. power filtering capacitor, C10. farad capacitor, K1. the counterclockwise limitation travel switch of ceramic sealing valve cone, K2. the clockwise limitation travel switch of ceramic sealing valve cone.

in Fig. 3, J1 is the power interface plug, and J2 is the reducing motor plug, K1 is the counterclockwise limitation travel switch of ceramic sealing valve cone, and K2 is the clockwise limitation travel switch of ceramic sealing valve cone, and MB6S is bridge rectifier, C1 is the constant electric capacity of 1uF farad capacitor charging delay circuit, C2, C3 is 1uF triggering level coupling capacitance, and C4 is that 0.1uF (1/IC2) trigger powers up zero clearing electric capacity, C5, C6, C7, C8 is 0.1uF electric capacity, and C9 is the 220uF/35V power filtering capacitor, and C10 is the 0.22F/5.5V farad capacitor, and R1 is 3.3M charging current limiter resistance, R2, R3, R4, R5, R6 is 510K resistance, R7, R8 is 10K resistance, R9, R10, R11, R12 is 390 Ω resistance, and D1 is the RS1B commutation diode, D2, D3, D4, D5 is the 1N4148 switching diode, and T1 is 7805 integrated regulators, T2, T6 (8550PNP), T4 (8050NPN) is the forward current output triode, T3, T5 (8550PNP), T7 (8050NPN) is the back current output triode, and IC1 is four AND NOT gate CD4011, and IC2 is double D trigger CD4013.

Embodiment

In Fig. 1, enter the mortor operated valve main body by power input plug (1), (2) ABAP Adapter, send into control circuit board after power interface socket (4), the forward and reverse driving current of circuit after reducing motor combination hub (3) to reducing motor.Reducing motor driving gear (5) is realized torsion transmission and amplification with the fan-shaped driven gear (6) on the ceramic sealing valve cone rotating spindle.The counterclockwise limitation travel switch of ceramic sealing valve cone (K1),, with the spacing setting at an angle of 90 of the clockwise limitation travel switch of ceramic sealing valve cone (K2) structure, at tooth sector rotational travel driving lever (7), come and go under the effect of rotating and realize that the zero clearing of control circuit resets.

In Fig. 2, ceramic sealing valve cone gland and control circuit timbering (12) and control circuit board (13) realize that overhead type fixes.

Circuit working principle in Fig. 3 is as follows: when (J1) is added with 9 to 20V alternating voltage, bridge rectifier (MB6S) plays rectified action, if while (J1) being added with 9 to 24V VDC, bridge rectifier (MB6S) plays the positive and negative polarity of the input power function of conversion automatically.Power supply process (T1) 7805 reaches when (D1) to control circuit, providing operating voltage and to farad capacitor (C10), charges.After the control circuit energising, four the 4th of AND NOT gate CD4011 (4/IC1) and (R2) formation confession, outage recognition circuit, when (T1) has the 5V Voltage-output, 12,13 pin namely become high level, 11 pin are low level, and 1,2 pin (1/IC1) are all low level, and 3 pin are high level, 5 pin of the second AND NOT gate (2/IC1) are received on output level one tunnel of 3 pin, and farad capacitor charging delay circuit is unlocked; Lead up to (R holds 10 pin) that (D2) be connected to " closing " state flip-flop (2/IC2) with the 13 pin zero setting of (2/IC2) Q end.when current-limiting resistance (R1) to (C1) while charging to 1.4V, when 5 pin (2/IC1) and 6 pin are all high level, 4 pin (2/IC1) start to become low level, through the 3rd AND NOT gate (3/IC1) 8, 9 pin inputs and anti-phase after, provide the logic level of " unlatching " instruction to " unlatching " state flip-flop (1/IC2) S end 6 pin by (C2) from the high level of 10 pin outputs, Q end 1 pin (1/IC2) is high level from the low level upset, charging process due to C4 after initial power-up holds 1 pin by zero setting the Q of (1/IC2), after non-end 2 pin of Q become low level from high level, (T2) is from by becoming conducting, (T4) enter saturated, (T6) saturation conduction immediately, be connected with reducing motor combination hub (3) by (J2), reducing motor (14) starts to clockwise rotate because of the driving of forward current, and by the torsion transmission of driving gear (5) with fan-shaped driven gear (6), ceramic sealing valve cone (11) is and rotates counterclockwise, valve is opened gradually.when ceramic sealing valve cone (11) rotates to " unlatching " spacing terminal, be connected to the driven tooth sector rotational travel driving lever (7) on ceramic valve core (11) rotating spindle, to touch the counterclockwise position limit switch of ceramic sealing valve cone (K1) of " unlatching " end, (1/IC2) high level on Q end 1 pin is by (K1), (D5) after forming high level on the R of (1/IC2) end 4 pin, " unlatching " state flip-flop (1/IC2) Q end 1 pin is namely by zero setting, after non-end 2 pin of Q are high level from the low level upset, (T2), (T4), (T6) all be in cut-off, reducing motor (14) stops forward rotation, control circuit is in the state of dormancy of little power consumption.After the disconnecting external power supply, (T1) voltage of 7805 output terminals, from the 5V vanishing,, because (D1) has effect non-return and isolation, still has the voltage of 4.3V on farad capacitor this moment (C10), and continues and power to control circuit.When (T1) 7805 output voltages are zero, 12,13 pin (4/IC1) namely become low level, 11 pin transfer high level to, 3 pin after anti-phase that are connected with the first AND NOT gate (1/IC1) 1,2 pin due to 11 pin change low level into, and during externally fed, 3 pin are disengaged simultaneously by the high level that (D2) is connected to " closing " state flip-flop (2/IC2) R end 10 pin.(4/IC1) high level of 11 pin lead up to (D3) R of (1/IC2) end 4 pin are locked in high petential.Guarantee the zero setting all the time of " unlatching " state flip-flop Q end 1 pin.Another road provides the triggering level of " closing " instruction to S end 8 pin of " closing " state flip-flop (2/IC2) by (C3).Q end 13 pin (2/IC2) are high level from the low level upset, 12 pin overturn as (T3) conducting after low level from high level, (T7) enter saturated, (T5) saturation conduction immediately, be connected with reducing motor combination hub (3) by (J2), reducing motor (14) starts to be rotated counterclockwise because of the driving of back current, and ceramic sealing valve cone (11) is and clockwise rotates, and valve is closed gradually.When ceramic sealing valve cone (11) rotates to " closing " spacing terminal, be connected to the driven tooth sector rotational travel driving lever (7) on the ceramic valve core rotating spindle, to touch the clockwise position limit switch of ceramic sealing valve cone (K2) of " closing " end, (2/IC2) high level on Q end 13 pin passes through (K2), (D4) after the R of (2/IC2) end 10 pin form high level, " close " state flip-flop (2/IC2) Q end 13 pin namely by zero setting, reducing motor (14) stops being rotated counterclockwise, and control circuit enters holding state.

Claims

1. accurate electronic control circuit of ceramic seal mortor operated valve, it is by bridge rectifier, integrated regulator, power supply and outage recognition circuit, farad capacitor charging delay circuit, " unlatching " and " closing " state flip-flop, ceramic sealing valve cone clockwise rotates 90 ° of limitation travel switches, rotate counterclockwise 90 ° of limitation travel switches and just provide for reducing motor, the amplifier of back current forms, it is characterized in that: the control circuit panel assembly is in the sealing case of ceramic seal mortor operated valve main body, the control circuit input end connects the ABAP Adapter of electric valve, the built-in reducing motor of the output terminal of control circuit and valve is connected.

2. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: the power supply in control circuit is comprised of four AND NOT gate CD4011 with the outage recognition circuit, four input ends 12 of CD4011,13Jiao Yi road join through resistance and ground, and a road is connected to the output terminal of integrated regulator 7805.

3. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: in circuit, the output terminal of integrated regulator 7805 joins by commutation diode and farad capacitor.

4. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: farad capacitor charging delay circuit adopts four AND NOT gate CD4011, wherein input end 6 pin of CD4011 are leaded up to current-limiting resistance and are connected to the positive pole of farad capacitor, and another road joins by electric capacity and ground.

5. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: " unlatching " in control circuit selected double D trigger CD4013 with " closing " state flip-flop, the 3rd, 5,9,11 pin of its chip all are connected with ground, and the 4th, 6,8,10 pin are connected with ground by resistance respectively.

6. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: installed respectively ceramic sealing valve cone in the front of control circuit board and clockwise rotated 90 ° of limitation travel switches and rotate counterclockwise 90 ° of limitation travel switches, the main shaft structure of two position limit switches and ceramic sealing valve cone dynamic contact hairdo rotary stopper is at an angle of 90 controlled, and is furnished with fan-shaped driven gear rotational travel driving lever on the main shaft of ceramic sealing valve cone.

7. the accurate electronic control circuit of ceramic seal mortor operated valve according to claim 1, it is characterized in that: control circuit board is provided with large and small two through holes, the ceramic sealing valve cone rotating spindle passes macropore wherein, driving gear on reducing motor takies aperture, and with the fan-shaped driven gear that is fixed on the ceramic sealing valve cone rotating spindle, realizes hinge.