CN2263362Y - Water-level controller - Google Patents

Abstract

The utility model provides a water level controller in a water supply system. The utility model is composed of a housing, a transformer, a relay, a circuit board, terminals, etc. Direct current power supply is supplied for the circuit part of the utility model through the transformer, a bridge rectifier, and a capacitor. A signal is input in a gate circuit through the controller and is amplified, the relay is driven to act, and the purpose that the water level of a water tank is controlled is achieved. The utility model has the advantages of small size, single power supply type, convenient installation, convenient maintenance, etc.

Description

Water level controller

The utility model belongs to cistern water level control device in the water system.

Both with 220 volts of relays, 12 volts of relays are arranged again in the present existing tank water level controller, cause power type many, volume is big, and lead-in wire is many, and not only inconvenience but also uneasy congruent shortcoming are installed.

The purpose of this utility model is to provide a kind of power type single, and volume is little, and function is many, and the tank water level controller that maintenance is not only convenient but also safe is installed.

For achieving the above object, the technical solution of the utility model is:

By housing 1, transformer 2, relay 3, circuit board 4, terminal 5, outside lead 6, the water level controller that constitutes, transformer once meets power supply 220V on circuit board, secondary is two groups of 12V, a winding bridge rectifier RB156 ac input end, and the RB156 dc output end meets capacitor C ₁, just just connecing, negative connect negatively, terminal has 5, is A, B, C, D, E, and terminal A meets R ₂One end, D ₁Negative pole, relay J ₁Coil one end.Terminal B meets R ₁, BG ₁Base stage, BG ₁Collector meets R ₂One end.BG ₂Emitter meets BG ₂Collector, BG ₃Base stage, terminal C meets R ₃, meet BG ₂Base stage, BG ₂Emitter meets R ₄To power cathode, BG ₂Collector and BG ₁Emitter meets BG ₃Base stage, BG ₃Emitter is through diode D ₂Positive pole, negative pole connect power cathode, collector meets diode D ₁Positive pole is succeeded electrical equipment J simultaneously ₁Coil one end.Terminal DE is a relay J ₁Normal opened contact, 12V is through diode D for another group ₃Meet J _1-2, J _1-3Meet red green relay indicating light L respectively ₁, L ₂BC is two CONTROLLED POTENTIAL input ends in this circuit, and B starts terminal, and C stops terminal.

Add a forward potential at the B terminal, satisfy the power supply of triode emitter junction forward, the reverse powered operation condition of collector junction, BG ₁Conducting is at BG ₁Emitter BG ₃Base stage has electric current to flow through the generation pressure drop, and this pressure drop current potential just in time satisfies BG ₃Conducting, BG ₃The extremely approximate short circuit of ebc three, can regard as a bit, like this relay J ₁The coil two ends have added ± the 12V power supply, the actuating of relay, J _1-1The normal opened contact closure.

Add a forward potential, BG at the C terminal ₂Conducting, BG ₂Three utmost points can be regarded as a bit, like this, because R ₄The resistance that adopts is very little, BG ₃Base stage and power cathode also can be regarded as a bit, have destroyed BG ₃Condition of work, BG ₃End BG ₃The extremely approximate open circuit of ebc three, relay J ₁The coil two ends do not add power supply ± 12V and discharge, J _1-1The reinstatement attitude.

Adopt the circuit of said structure, it is little to have a volume, and element is little, and lead-in wire is few, and only there is the 12V relay at the dawn, gives and installs, and maintenance brings convenience, safety.

Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail

Fig. 1, the utility model circuit theory diagrams

Fig. 2, can control the utility model structural representation of upper and lower water tank

Fig. 3, can control the utility model structure synoptic diagram of lower header, head tank

Fig. 4, can control the utility model structure synoptic diagram of water tower upper water box

Fig. 5, the utility model do not have the structural representation of lead-in wire

Embodiment 1

By housing 1, transformer 2, relay 3, circuit board 4, terminal 5, outside lead 6, constitute water level controller, transformer once meets power supply 220V on circuit board, secondary meets two groups of 12V, a winding bridge rectifier RB156 ac input end, and the RB156 dc output end meets capacitor C ₁, just just connecing, negative connect negatively, terminal has 5, is A, B, C, D, E, and terminal A meets R ₂One end, D ₁Negative pole, relay J ₁Coil one end.Terminal B meets R ₁, BG ₁Base stage, BG ₁Collector meets R ₂One end.BG ₁Emitter meets BG ₂Collector, BG ₃Base stage, terminal C meets R ₃, meet BG ₂Base stage, BG ₂Emitter meets R ₄To power cathode, BG ₂Collector and BG ₁Emitter meets BG ₃Base stage, BG ₃Emitter is through diode D ₂Positive pole, negative pole connect power cathode, collector meets diode D ₁Positive pole is succeeded electrical equipment J simultaneously ₁Coil one end.Terminal DE is a relay J ₁Normal opened contact, be used for controlling J ₂Coil of wire two ends 380V power supply.12V is through diode D for another group ₃Meet J _1-2, J _1-3Meet red green relay indicating light L respectively ₁, L ₂, its outside lead connected mode is:

Terminal A connects lower header electrode 1;

Terminal B connects lower header electrode 3, simultaneously through A.C. contactor J ₂The subsidy contact is often opened,

Receiving electrode 2;

Terminal C connects water tank electrode 5, simultaneously through A.C. contactor J ₂The subsidy contact is normally closed,

Connect water tank electrode 4;

Terminal D meets A.C. contactor J ₂Coil one end, A.C. contactor J ₂Another termination

380V power supply B phase;

Terminal E directly is connected on 380V power supply A phase.

Cistern water level connects touched electrode 3 from electrode 1-3 rising, water when using at present, and the positive potential of electrode 1 is given R by the water conductor to electrode 3 ₁BG ₁The pipe base stage, BG ₁Conducting, BG ₃Conducting, relay J ₁Action, J _1-1Connect J ₂Coil 380V, motor changes, and fetches water to upper water box.For upper water box, when water level rises to electrode 5 from 4 electrodes, when the water surface one contact electrode 5, the forward potential of electrode 1 is given BG by pipeline through water surface receiving electrode 5 ₂Base stage adds a forward potential, BG ₂Conducting, BG ₃End relay J ₁Two ends do not add ± 12V and discharge J _1-1Cut off J ₂Coil of wire 380V power supply, motor stops.

Electrode 2, after electrode 1-3 connects by water level, J ₂Action J _2-1With electrode 2,3, be communicated with, electrode 3 leaves the water surface, who holds BG for electrode 2 ₁The base stage forward potential.

Electrode 4, after electrode 4-5 connects by water level, relay J ₁J is cut off in action ₂The 380V power supply, J _2-2Recover normally off, electrode 5 leaves the water surface, keeps BG by electrode 4 ₂The base stage forward potential.Electrode 2, water level low electrode 2, BG ₁Base stage does not have forward potential and ends, equally by the utmost point 4, and water level low electrode 4, BG ₂No forward potential and ending.

Lower header, level electrode 1-3 contact must be left the water surface by upper water box electrode 4, just can make controller work, relay J ₁Action, J _1-1Connect the J2380V power supply.

Upper water box, as long as water level rises to 5 electrodes, controller cuts off J ₂Power supply 380V.Embodiment 2

Present embodiment circuit part such as embodiment 1, its outside lead connected mode is:

Terminal A, water receiving case electrode 1;

Terminal B is through A.C. contactor J ₂The subsidy contact often open J _2-3, receiving electrode 3, J _2-1Receiving electrode 2, electrode 3 connects electric contact pressure Table A ' end simultaneously;

Terminal D connects the A.C. contactor coil of wire one end, another termination three-phase supply of coil of wire B phase;

Terminal E directly connects three-phase supply A phase.

Electrode 123 is lower header control electrodes when using, and A ' BC is three lead terminals of electric contact pressure gauge.

When static, electric contact pressure gauge, A ' BC, A '-B is conducting, because the lower header water surface does not contact with electrode 3, the forward potential of A adds less than on the tensimeter A '.

Instantly cistern water level rises, water surface contact electrode 3, and the forward potential of A end is by water route conduction electrode 3, and tensimeter A ' is to starting terminal B, controller work, simultaneously, J _2-1, J _2-3With terminal B, electrode 2, tensimeter terminal A ' connection.Terminal B, electrode 2 connects, and when guaranteeing that A ' leaves terminal B, operating potential is provided for terminal B.Electrode 2, electric contact pressure gauge A ' connection guarantees that A ' provides stopping potential with the C termination contact.

J _2-1Effect is left the water surface at electrode 3, J _2-1Electrode 2,3 is connected, and lower header is fetched water in head tank, and electrode 3 leaves the water surface, and electrode 2 still in water, guarantees controller work, and lower header water is lower than electrode 2, cuts off the controller operating potential automatically, forces controller to quit work.

J _2-3J is supposed in effect _2-3Two ends are paths, and the lower header water surface one contact electrode 3 just starts.

Add J _2-3, water tank water surface contact electrode 3, just the individual condition of controller startup determines that the controller startup is the head tank electric contact pressure gauge.Add J _2-3, prevent frequent starting.Embodiment 3

Present embodiment circuit part such as embodiment 1, its outside lead connected mode is:

Terminal A is connected with terminal B, is connected with water tank electrode 1 simultaneously;

Terminal C is connected with electrode 3, simultaneously through A.C. contactor J ₂Contact is normally closed connects in subsidy

The utmost point 2;

Terminal D connects phase power supply B phase through A.C. contactor;

Terminal E directly is connected on power supply A phase.

When using, just fetch water for electricity toward water tower, when water tower level rises to electrode 3, BG ₂The pipe base stage from 1-3 obtain-E is to current potential and conducting, BG ₃The pipe base potential is by BG ₂Conducting and pull away relay J ₁The coil two ends do not add ± 12V and restore J _1-1Cut off J ₂The 380V power supply, motor stops.Because electrode 2,3 is subjected to J _2-1Normally closed connection, water tower level could be fetched water toward water tower when reducing electrode 2 once more.So just guarantee that water tower level keeps between the electrode 2,3 forever.

Claims (4)

1, a kind of by housing (1), transformer (2), relay (3), circuit board (4), terminal (5), the water level controller that outside lead (6) constitutes, it is characterized in that: transformer once meets power supply 220V, secondary meets two groups of 12V, a winding bridge rectifier RB156 ac input end, and the RB156 dc output end meets capacitor C ₁, just just connecing, negative connect negatively, terminal has 5, is A, B, C, D, E, and terminal A meets R ₂One end, D ₁The negative pole relay J ₁Coil one end.Terminal B meets R ₁, BG ₁Base stage, BG ₁Collector meets R ₂One end.BG ₁Emitter meets BG ₂Collector, BG ₃Base stage, terminal C meets R ₃, meet BG ₂Base stage, BG ₂Emitter meets R ₄To power cathode, BG ₂Collector and BG ₁Emitter meets BG ₃Base stage, BG ₃Emitter is through diode cathode, D ₁Negative pole meets power cathode, BG ₃Collector meets diode D ₁Positive pole is succeeded electrical equipment J simultaneously ₁Coil one end, terminal DE is a relay J ₁Normal opened contact; 12V is through diode D for another group ₃Meet J _1-2, J _1-3Meet red green relay indicating light L respectively ₁, L ₂

2, a kind of water level controller as claimed in claim 1, it is characterized in that: the connected mode of its outside lead is: terminal A connects lower header electrode 1; Terminal B connects lower header electrode 3, simultaneously through A.C. contactor J ₂The subsidy contact is often opened receiving electrode 2; Terminal C connects water tank electrode 5, simultaneously through A.C. contactor J ₂The subsidy contact is normally closed, connects water tank electrode 4; Terminal D meets A.C. contactor J ₂Coil one end, A.C. contactor J ₂Another termination 380V power supply B phase; Terminal E directly is connected on 380V power supply A phase.

3, a kind of water level controller as claimed in claim 1, it is characterized in that: the direct mode of its outside lead is: terminal A, water receiving case electrode 1; Terminal B is through A.C. contactor J ₂The subsidy contact often open J _2-3, receiving electrode 3, J _2-1Receiving electrode 2, electrode 3 connects electric contact pressure Table A ' end simultaneously; Terminal D meets A.C. contactor J ₂Coil one end, another termination three-phase supply of coil B phase; Terminal E directly connects three-phase supply A phase.

4, a kind of water level controller as claimed in claim 1, it is characterized in that: the connected mode of its outside lead is: terminal A is connected with terminal B, is connected with water tank electrode 1 simultaneously; Terminal C is connected with electrode 3, simultaneously through A.C. contactor J ₂The subsidy contact is normally closed, receiving electrode 2; Terminal D is through A.C. contactor J ₂Connect three-phase supply B phase; Terminal E directly is connected on power supply A phase.

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