CN203311189U - Foundation pit automation drainage control module - Google Patents
Foundation pit automation drainage control module Download PDFInfo
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- CN203311189U CN203311189U CN2013203811502U CN201320381150U CN203311189U CN 203311189 U CN203311189 U CN 203311189U CN 2013203811502 U CN2013203811502 U CN 2013203811502U CN 201320381150 U CN201320381150 U CN 201320381150U CN 203311189 U CN203311189 U CN 203311189U
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Abstract
A foundation pit automation drainage control module relates to an electronic control module. The module is mainly formed by an inner circuit, a module shell and an interface. The inner circuit is formed by a working power supply circuit, a water level signal input circuit and a driving execution circuit. A bridge-type rectification circuit, a filtering capacitor a, a voltage stabilization block and a filtering capacitor b form the working power supply circuit. A high water level signal input interface, a low water level signal input interface, a NOT gate, a NAND gate b, a bypass resistor a and a bypass resistor b form the water level signal input circuit. A NAND gate a, a triode, a clamping diode and a relay form the driving execution circuit. The inner circuit is installed on a circuit board and the circuit board is arranged in a module shell and is packaged by using epoxy resin. By using the module of the utility model, the foundation pit automation drainage is realized; manpower is saved and a water pump idle running damage is prevented. The module is suitable for a severe environment of a construction site.
Description
Technical field
The utility model relates to a kind of electric apparatus for controlling water level, specially refers to a kind of electronic control module.
Background technology
On building ground, often adopt the manually-operated water pump to carry out drainage of foundation pit, need to consume manpower, also exist water to drain the flimsy phenomenon of rear water pump idle running.Also have the fluid level controller operation water pump of adopting the electronic switch mode to carry out drainage of foundation pit, but building workshop dust is many and moist, general electronic liquid level controller is fragile malfunctioning, the impact construction.
The utility model content
The purpose of this utility model is that a kind of dustproof, waterproof, non-damageable foundation ditch Auto-drainage control module will be provided, and to adapt to the rugged surroundings of building ground, realizes building ground foundation ditch Auto-drainage, saves manpower, makes engineering construction smooth.
A kind of foundation ditch Auto-drainage control module of the present utility model, it is characterized in that control module is mainly by interior circuit, module housing and interface form, interior circuit is by working power circuit, water level signal input circuit and driving executive circuit form, wherein, by bridge rectifier circuit (VD1-VD4), filter capacitor a(C1), regulator block (IC1) and filter capacitor b(C2) the formation working power circuit, by high water stage signal input interface (2-6), low-water level signal input interface (2-7), not gate (IC2), Sheffer stroke gate b(IC4), be close to road resistance a(R2) He Bang road resistance b(R3) formation water level signal input circuit, by Sheffer stroke gate a(IC3), triode (VT), clamp diode (VD6) and relay form the driving executive circuit, interior circuit is arranged on circuit board, and circuit board is arranged in module housing, and interface is from the side access of module housing, described interface comprises power input interface a(2-1), power input interface b(2-2), output interface (2-5), high water stage signal input interface (2-6), low-water level signal input interface (2-7), the phase line input interface (2-3) of 220V AC power and the phase line output interface (2-4) of 220V AC power of sampling voltage, power input interface a(2-1) and power input interface b(2-2) be connected respectively to two ac input ends of bridge rectifier circuit (VD1-VD4), the negative pole of bridge rectifier circuit (VD1-VD4) is held with being connected to, the positive pole of bridge rectifier circuit (VD1-VD4) is connected to filter capacitor a(C1) positive pole and the 1st end of regulator block (IC1), the 2nd end of negative pole filter capacitor a(C1) and regulator block (IC1) is held with being connected to, the 3rd end of regulator block (IC1) is connected to filter capacitor b(C2) positive pole, regulator block (IC1) the 3rd end and filter capacitor b(C2) anodal tie point is the positive pole of working power, high water stage signal input interface (2-6) is connected to and is close to road resistance a(R2) the 1st pin and the input end of not gate (IC2), be close to road resistance a(R2) the 2nd pin hold with being connected to, the output terminal of not gate (IC2) is connected to Sheffer stroke gate a(IC3) the 1st input end, low-water level signal input interface (2-7) is connected to and is close to road resistance b(R3) the 1st pin and Sheffer stroke gate b(IC4) the 2nd input end, be close to road resistance b(R3) the 2nd pin hold with being connected to, Sheffer stroke gate b(IC4) output terminal be connected to Sheffer stroke gate a(IC3) the 2nd input end, Sheffer stroke gate a(IC3) output terminal is connected to Sheffer stroke gate b(IC4) the 1st input end and current-limiting resistance b(R4) the 1st pin, current-limiting resistance b(R4) the 2nd pin is connected to the base stage of triode (VT), the emitter of triode (VT) is held with being connected to, the collector of triode (VT) is connected to the anode of clamp diode (VD6) and the 2nd end of relay coil (K), and the 1st end of the negative electrode of clamp diode (VD6) and relay coil (K) is connected to the positive pole of working power, the output interface of sampling voltage (2-5) is connected to the positive pole of working power, the 1st end of relay switch (K ') is connected to the phase line input interface (2-3) of 220V AC power, and the 2nd end of relay switch (K ') is connected to the phase line output interface (2-4) of 220V AC power.In the utility model, on the front of module housing, power light is arranged, power light consists of light emitting diode (VD5), the anodic bonding of light emitting diode (VD5) is to the positive pole of bridge rectifier circuit (VD1-VD4), and the negative electrode of light emitting diode (VD5) is by current-limiting resistance a(R1) hold with being connected to; Power input interface a(2-1) and power input interface b(2-2) input voltage be alternating current or the direct current of 6-12V; As power input interface a(2-1) and power input interface b(2-2) input voltage while being the alternating current of 6-12V, in the input circuit of control module, rectifier transformer is arranged, the alternating current of 6-12V obtains by the secondary coil of rectifier transformer, and the primary coil of rectifier transformer is connected on the 220V AC power.
In the utility model, not gate (IC2), Sheffer stroke gate a(IC3), Sheffer stroke gate b(IC4) share 42 input nand gate cmos digital integrated circuit of a CC4011 model, in foregoing circuit, use three groups, wherein 2 of one group of Sheffer stroke gate input ends carry out as not gate (IC2), using after parallel connection, and 2 input ends of one group of unnecessary Sheffer stroke gate are held with being connected to; The power end of integrated circuit (Vcc) is connected to the positive pole of working power; The ground end of integrated circuit is connected to the ground end of circuit.The input impedance of cmos digital integrated circuit is high, micro power consumption, and has wider supply voltage working range, the absolute value of voltage noise tolerance limit increases with the increase of supply voltage, so strong anti-interference performance of circuit, therefore, the cmos digital integrated circuit have that power consumption is little, reliable operation, non-damageable characteristics.In order to make foundation ditch Auto-drainage control module have dust and water protection, to adapt to the severe environment for use in building ground, employing epoxy resin in module housing, makes interior circuit package interior circuit avoid contacting with rainwater with dust, guarantees that circuit working is reliable.
Above-mentioned utility model in the specific implementation, outer power switch (1) and the rectifier transformer (8) of being with of foundation ditch Auto-drainage control module, use submersible pump (4) to carry out drainage of foundation pit, foundation ditch Auto-drainage control module be used for automatic operation submersible pump (4) operation or stop.At the low-lying place of foundation ditch (7), dig a sump (3), submersible pump (4) is placed in to the bottom of sump (3), the phase line of 220V AC power is connected to the phase line input end (1-3) of power switch (1), the zero line of 220V AC power is connected to the zero line input end (1-1) of power switch (1), the zero line output terminal (1-2) of power switch (1) is connected to the primary coil input end b(8-3 of rectifier transformer (8)) and the 2nd end of submersible pump (4) coil winding, the phase line output terminal (1-4) of power switch (1) is connected to the primary coil input end a(8-1 of rectifier transformer (8)) and control module (2) on 220V AC power phase line input interface (2-3), 220V AC power phase line output interface (2-4) on control module (2) is connected to the 1st end of submersible pump (4) coil winding, the secondary coil output terminal a(8-2 of rectifier transformer (8)) be connected to the power input interface a(2-1 on control module (2)), the secondary coil output terminal b(8-4 of rectifier transformer (8)) be connected to the power input interface b(2-2 on control module (2)), sampling voltage output interface (2-5) on control module (2) is wired to the earth, and the metal of wire exposed part is imbedded in the moist earth of the earth, high water stage signal input interface (2-6) on control module (2) is wired to the top of sump (3), make the metal of exposed 5 centimetres of wire head end on sump (3) top as high water level electrode (6), avoid the earth wall body of high water level electrode (6) contact sump (3), low-water level signal input interface (2-7) on control module (2) is wired to the bottom of sump (3), make the metal of exposed 5 centimetres of wire head end of sump (3) bottom as low water level electrode (5), the fixed position of low water level electrode (5) is a little more than the height of submersible pump (4) bottom valve and avoid contacting the earth wall body of sump (3).
Above-mentioned utility model in use, power turn-on switch (1), make the primary coil energising of rectifier transformer (8), the secondary coil of rectifier transformer (8) is inputted the alternating current of 6-12V to the power input interface on control module (2), make control module (2) enter work, light simultaneously the power light (2-9) on control module (2) panel, when submersible pump (4) stops pumping, when the water level in the sump of foundation ditch (3) rises to the height between low water level electrode (5) and high water level electrode (6), the signal voltage of the output interface of sampling voltage (2-5) output passes through the earth, water in sump (3), low water level electrode (5) and wire are transported to low-water level signal input interface (2-7), make Sheffer stroke gate b(IC4) the 2nd input end be high level, at this moment the 1st input end Sheffer stroke gate b(IC4) is low level, so Sheffer stroke gate b(IC4) output terminal is high level, make Sheffer stroke gate a(IC3) the 2nd input end be high level, at this moment high water level electrode (6) does not touch water, the input end of not gate (IC2) is low level, output terminal is high level, make Sheffer stroke gate a(IC3) the 1st input end be high level, therefore, Sheffer stroke gate a(IC3) output terminal is low level, make submersible pump (4) maintain the state of stopping pumping, when the continuation of the water level in the sump (3) of foundation ditch rising touches high water level electrode (6), high water level electrode (6) is carried the high water stage signal input interface (2-6) of electric signal to control module by wire, make the input end of not gate (IC2) be high level, output terminal is low level, Sheffer stroke gate a(IC3) the 1st input end is low level, make not gate a(IC3) output terminal be high level, not gate a(IC3) high level of output terminal makes Sheffer stroke gate b(IC4) the 1st input end be high level and make triode (VT) conducting, the coil of relay (K) energising, make switch (the K ') adhesive of relay, the switch of 220V AC power by relay (K ') is communicated to the winding coil of submersible pump (4), submersible pump (4) running is drawn water, the sump of foundation ditch (3) carries out draining, at this moment, Sheffer stroke gate b(IC4) output terminal is low level, make Sheffer stroke gate a(IC3) the 2nd input end be low level, when sump (3) water level of foundation ditch drops to the height between high water level electrode (6) and low water level electrode (5), high water level electrode (6) is not subjected to electricity, the input end of not gate (IC2) is low level, output terminal is high level, make Sheffer stroke gate a(IC3) the 1st input end be high level, due to Sheffer stroke gate a(IC3 at this moment) the 2nd input end be low level, making Sheffer stroke gate a(IC3) output terminal is still for high level, and submersible pump (4) is remained in operation and draw water, sump (3) continuation draining when foundation ditch, while making water level lower than low water level electrode (5), low water level electrode (5) is not subjected to electricity, Sheffer stroke gate b(IC4) the 2nd input end just is low level, Sheffer stroke gate b(IC4) output terminal is high level, make Sheffer stroke gate a(IC3) 2 input ends simultaneously for high level, Sheffer stroke gate a(IC3) output terminal just is converted to low level, make triode (VT) cut-off, the coil of relay (K) dead electricity and the contact of the switch (K ') of relay is disconnected, make the coil winding dead electricity of submersible pump (4), submersible pump (4) stops pumping, until the water level of sump (3) is while rising to high water level electrode (6), control module (2) repeats above-mentioned drain operation.
The beneficial effects of the utility model are: a kind of foundation ditch Auto-drainage control module of design, realize building ground foundation ditch Auto-drainage, and save manpower and prevent the water pump idle running damage.The interior circuit of module is used the cmos digital integrated circuit, has that power consumption is little, a reliable operation, non-damageable characteristics, and module adopts epoxy resin to encapsulate, and has characteristics dustproof, waterproof, and the rugged surroundings that adapt to building ground are used.
The accompanying drawing explanation
Accompanying drawing 1 is the external view of a kind of foundation ditch Auto-drainage control module of the present utility model.
Accompanying drawing 2 is internal circuit diagrams of a kind of foundation ditch Auto-drainage control module of the present utility model.
Accompanying drawing 3 is foundation ditch Auto-drainage control module of the present utility model schematic diagram in the building ground application.
In figure: the resistance a ，R3.Bang road resistance b of R1. current-limiting resistance a ，R2.Bang road, R4. current-limiting resistance b, C1. filter capacitor a, C2. filter capacitor b, VD1-VD4. bridge rectifier circuit, VD5. light emitting diode, VD6. clamp diode, IC1. regulator block, IC2. not gate, IC3. Sheffer stroke gate a, IC4. Sheffer stroke gate b, VT. triode, the coil of K. relay, K '. the switch of relay, the power end of Vcc. integrated circuit, 1. power switch, 1-1. the zero line input end of power switch, 1-2. the zero line output terminal of power switch, 1-3. the phase line input end of power switch, 1-4. the phase line output terminal of power switch, 2. control module, 2-1.12V power input interface a, 2-2.12V power input interface b, 2-3.220V the phase line input interface of AC power, 2-4.220V the phase line output interface of AC power, 2-5. the output interface of sampling voltage, 2-6. high water stage signal input interface, 2-7. low-water level signal input interface, 2-8. installation screw, 2-9. power light, 3. the sump of foundation ditch, 4. submersible pump, 5. low water level electrode, 6. high water level electrode, 7. foundation ditch, 8. rectifier transformer, 8-1. primary coil input end a, 8-2. secondary coil output terminal a, 8-3. primary coil input end b, 8-4. secondary coil output terminal b.
Embodiment
In embodiment shown in embodiment 1 accompanying drawing 1 and accompanying drawing 2, foundation ditch Auto-drainage control module is mainly by interior circuit, module housing and interface form, interior circuit is by working power circuit, water level signal input circuit and driving executive circuit form, wherein, by bridge rectifier circuit (VD1-VD4), filter capacitor a(C1), regulator block (IC1) and filter capacitor b(C2) the formation working power circuit, by high water stage signal input interface (2-6), low-water level signal input interface (2-7), not gate (IC2), Sheffer stroke gate b(IC4), be close to road resistance a(R2) He Bang road resistance b(R3) formation water level signal input circuit, by Sheffer stroke gate a(IC3), triode (VT), clamp diode (VD6) and relay form the driving executive circuit, interior circuit is arranged on circuit board, and circuit board is arranged in module housing, and interface is from the side access of module housing, described interface comprises power input interface a(2-1), power input interface b(2-2), output interface (2-5), high water stage signal input interface (2-6), low-water level signal input interface (2-7), the phase line input interface (2-3) of 220V AC power and the phase line output interface (2-4) of 220V AC power of sampling voltage, power input interface a(2-1) and power input interface b(2-2) be connected respectively to two ac input ends of bridge rectifier circuit (VD1-VD4), the negative pole of bridge rectifier circuit (VD1-VD4) is held with being connected to, the positive pole of bridge rectifier circuit (VD1-VD4) is connected to filter capacitor a(C1) positive pole, the 1st end of regulator block (IC1) and the anode of light emitting diode (VD5), the negative electrode of light emitting diode (VD5) is by current-limiting resistance a(R1) hold with being connected to, the 2nd end of negative pole filter capacitor a(C1) and regulator block (IC1) is held with being connected to, the 3rd end of regulator block (IC1) is connected to filter capacitor b(C2) positive pole, regulator block (IC1) the 3rd end and filter capacitor b(C2) anodal tie point is the positive pole of working power, high water stage signal input interface (2-6) is connected to and is close to road resistance a(R2) the 1st pin and the input end of not gate (IC2), be close to road resistance a(R2) the 2nd pin hold with being connected to, the output terminal of not gate (IC2) is connected to Sheffer stroke gate a(IC3) the 1st input end, low-water level signal input interface (2-7) is connected to and is close to road resistance b(R3) the 1st pin and Sheffer stroke gate b(IC4) the 2nd input end, be close to road resistance b(R3) the 2nd pin hold with being connected to, Sheffer stroke gate b(IC4) output terminal be connected to Sheffer stroke gate a(IC3) the 2nd input end, Sheffer stroke gate a(IC3) output terminal is connected to Sheffer stroke gate b(IC4) the 1st input end and current-limiting resistance b(R4) the 1st pin, current-limiting resistance b(R4) the 2nd pin is connected to the base stage of triode (VT), the emitter of triode (VT) is held with being connected to, the collector of triode (VT) is connected to the anode of clamp diode (VD6) and the 2nd end of relay coil (K), and the 1st end of the negative electrode of clamp diode (VD6) and relay coil (K) is connected to the positive pole of working power, the output interface of sampling voltage (2-5) is connected to the positive pole of working power, the 1st end of relay switch (K ') is connected to the phase line input interface (2-3) of 220V AC power, and the 2nd end of relay switch (K ') is connected to the phase line output interface (2-4) of 220V AC power, on the front of module housing, power light is arranged, power light consists of light emitting diode (VD5), power input interface a(2-1) and power input interface b(2-2) input voltage be the alternating current of 9V, in the input circuit of control module, rectifier transformer is arranged, the alternating current of 9V obtains by the secondary coil of rectifier transformer, and the primary coil of rectifier transformer is connected on the 220V AC power.In the present embodiment, not gate (IC2), Sheffer stroke gate a(IC3), Sheffer stroke gate b(IC4) share the cmos digital integrated circuit of CC4011 42 input nand gates, in foregoing circuit, use three groups, wherein 2 of one group of Sheffer stroke gate input ends carry out as not gate (IC2), using after parallel connection, and 2 input ends of untapped one group of Sheffer stroke gate are held with being connected to; The power end of integrated circuit (Vcc) is connected to the positive pole of working power; The ground end of integrated circuit is connected to the ground end of circuit.Employing epoxy resin in module housing, makes interior circuit package interior circuit avoid contacting with rainwater with dust, guarantees that circuit working is reliable.In the present embodiment, current-limiting resistance a(R1) and current-limiting resistance b(R4) select the carbon film resistor of 4.7K Ω/0.25W, be close to road resistance a(R2) He Bang road resistance b(R3) select the carbon film resistor of 300 K Ω/0.25W, filter capacitor a(C1) and filter capacitor b(C2) select the electrolytic condenser of 220uF/25V, it is the silicon rectifier diode of 1N4001 that bridge rectifier circuit (VD1-VD4) and clamp diode (VD6) are selected model, light emitting diode (VD5) is selected the LED diode of ￠ 5mm, it is 7809 three-terminal voltage-stabilizing circuit that regulator block (IC1) is selected model, triode (VT) is selected the silicon triode of S9013, relay is selected the DC relay of coil voltage 9V.
In embodiment shown in embodiment 2 accompanying drawings 3, outer power switch (1) and the rectifier transformer (8) of being with of foundation ditch Auto-drainage control module, use submersible pump (4) to carry out drainage of foundation pit, foundation ditch Auto-drainage control module be used for automatic operation submersible pump (4) operation or stop.At the low-lying place of foundation ditch (7), dig a sump (3), submersible pump (4) is placed in to the bottom of sump (3), the phase line of 220V AC power is connected to the phase line input end (1-3) of power switch (1), the zero line of 220V AC power is connected to the zero line input end (1-1) of power switch (1), the zero line output terminal (1-2) of power switch (1) is connected to the primary coil input end b(8-3 of rectifier transformer (8)) and the 2nd end of submersible pump (4) coil winding, the phase line output terminal (1-4) of power switch (1) is connected to the primary coil input end a(8-1 of rectifier transformer (8)) and control module (2) on 220V AC power phase line input interface (2-3), 220V AC power phase line output interface (2-4) on control module (2) is connected to the 1st end of submersible pump (4) coil winding, the secondary coil output terminal a(8-2 of rectifier transformer (8)) be connected to the power input interface a(2-1 on control module (2)), the secondary coil output terminal b(8-4 of rectifier transformer (8)) be connected to the power input interface b(2-2 on control module (2)), sampling voltage output interface (2-5) on control module (2) is wired to the earth, and the metal of wire exposed part is imbedded in the moist earth of the earth, high water stage signal input interface (2-6) on control module (2) is wired to the top of sump (3), make the metal of exposed 5 centimetres of wire head end on sump (3) top as high water level electrode (6), avoid the earth wall body of high water level electrode (6) contact sump (3), low-water level signal input interface (2-7) on control module (2) is wired to the bottom of sump (3), make the metal of exposed 5 centimetres of wire head end of sump (3) bottom as low water level electrode (5), the fixed position of low water level electrode (5) is a little more than the height of submersible pump (4) bottom valve and avoid contacting the earth wall body of sump (3).When the present embodiment is used, when the water level of sump (3) rises to the position of high water level electrode (6), control module (2) just automatic operation submersible pump (4) operation is drawn water, when the water level of sump (3) drop to low water level electrode (5) with upper/lower positions the time, control module (2) just automatic operation submersible pump (4) stops pumping, and avoids submersible pump (4) to dally and damages.
Claims (4)
1. foundation ditch Auto-drainage control module, it is characterized in that control module is mainly by interior circuit, module housing and interface form, interior circuit is by working power circuit, water level signal input circuit and driving executive circuit form, wherein, by bridge rectifier circuit (VD1-VD4), filter capacitor a(C1), regulator block (IC1) and filter capacitor b(C2) the formation working power circuit, by high water stage signal input interface (2-6), low-water level signal input interface (2-7), not gate (IC2), Sheffer stroke gate b(IC4), be close to road resistance a(R2) He Bang road resistance b(R3) formation water level signal input circuit, by Sheffer stroke gate a(IC3), triode (VT), clamp diode (VD6) and relay form the driving executive circuit, interior circuit is arranged on circuit board, and circuit board is arranged in module housing, and interface is from the side access of module housing, described interface comprises power input interface a(2-1), power input interface b(2-2), output interface (2-5), high water stage signal input interface (2-6), low-water level signal input interface (2-7), the phase line input interface (2-3) of 220V AC power and the phase line output interface (2-4) of 220V AC power of sampling voltage,
Power input interface a(2-1) and power input interface b(2-2) be connected respectively to two ac input ends of bridge rectifier circuit (VD1-VD4), the negative pole of bridge rectifier circuit (VD1-VD4) is held with being connected to, the positive pole of bridge rectifier circuit (VD1-VD4) is connected to filter capacitor a(C1) positive pole and the 1st end of regulator block (IC1), the 2nd end of negative pole filter capacitor a(C1) and regulator block (IC1) is held with being connected to, the 3rd end of regulator block (IC1) is connected to filter capacitor b(C2) positive pole, regulator block (IC1) the 3rd end and filter capacitor b(C2) anodal tie point is the positive pole of working power, high water stage signal input interface (2-6) is connected to and is close to road resistance a(R2) the 1st pin and the input end of not gate (IC2), be close to road resistance a(R2) the 2nd pin hold with being connected to, the output terminal of not gate (IC2) is connected to Sheffer stroke gate a(IC3) the 1st input end, low-water level signal input interface (2-7) is connected to and is close to road resistance b(R3) the 1st pin and Sheffer stroke gate b(IC4) the 2nd input end, be close to road resistance b(R3) the 2nd pin hold with being connected to, Sheffer stroke gate b(IC4) output terminal be connected to Sheffer stroke gate a(IC3) the 2nd input end, Sheffer stroke gate a(IC3) output terminal is connected to Sheffer stroke gate b(IC4) the 1st input end and current-limiting resistance b(R4) the 1st pin, current-limiting resistance b(R4) the 2nd pin is connected to the base stage of triode (VT), the emitter of triode (VT) is held with being connected to, the collector of triode (VT) is connected to the anode of clamp diode (VD6) and the 2nd end of relay coil (K), and the 1st end of the negative electrode of clamp diode (VD6) and relay coil (K) is connected to the positive pole of working power, the output interface of sampling voltage (2-5) is connected to the positive pole of working power, the 1st end of relay switch (K ') is connected to the phase line input interface (2-3) of 220V AC power, and the 2nd end of relay switch (K ') is connected to the phase line output interface (2-4) of 220V AC power.
2. a kind of foundation ditch Auto-drainage control module according to claim 1, it is characterized in that, on the front of module housing, power light is arranged, power light consists of light emitting diode (VD5), the anodic bonding of light emitting diode (VD5) is to the positive pole of bridge rectifier circuit (VD1-VD4), and the negative electrode of light emitting diode (VD5) is by current-limiting resistance a(R1) hold with being connected to.
3. a kind of foundation ditch Auto-drainage control module according to claim 1, is characterized in that power input interface a(2-1) and power input interface b(2-2) input voltage be alternating current or the direct current of 6-12V; As power input interface a(2-1) and power input interface b(2-2) input voltage while being the alternating current of 6-12V, in the input circuit of control module, rectifier transformer is arranged, the alternating current of 6-12V obtains by the secondary coil of rectifier transformer, and the primary coil of rectifier transformer is connected on the 220V AC power.
4. a kind of foundation ditch Auto-drainage control module according to claim 1, it is characterized in that adopting epoxy resin interior circuit package in module housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013203811502U CN203311189U (en) | 2013-06-30 | 2013-06-30 | Foundation pit automation drainage control module |
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|---|---|---|---|
| CN2013203811502U CN203311189U (en) | 2013-06-30 | 2013-06-30 | Foundation pit automation drainage control module |
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| CN203311189U true CN203311189U (en) | 2013-11-27 |
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| CN104090499A (en) * | 2014-06-17 | 2014-10-08 | 广东艾沃科技有限公司 | Flushing magnetic valve feedback circuit of water purifier and protection method thereof |
| CN104158528A (en) * | 2014-08-06 | 2014-11-19 | 衢州迪升工业设计有限公司 | Automatic and manual dual-purpose switching circuit for exhaust fan of restroom |
| CN104481855A (en) * | 2014-12-14 | 2015-04-01 | 衢州市煜鑫农产品加工技术开发有限公司 | Control circuit for geothermal heating of agricultural greenhouse |
| CN107092228A (en) * | 2017-06-30 | 2017-08-25 | 合肥贺财工程项目管理有限公司 | A kind of civil engineering project building site drainage management system |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104090498A (en) * | 2014-06-17 | 2014-10-08 | 广东艾沃科技有限公司 | Water inlet magnetic valve feedback circuit of water purifier and protection method thereof |
| CN104090499A (en) * | 2014-06-17 | 2014-10-08 | 广东艾沃科技有限公司 | Flushing magnetic valve feedback circuit of water purifier and protection method thereof |
| CN104158528A (en) * | 2014-08-06 | 2014-11-19 | 衢州迪升工业设计有限公司 | Automatic and manual dual-purpose switching circuit for exhaust fan of restroom |
| CN104481855A (en) * | 2014-12-14 | 2015-04-01 | 衢州市煜鑫农产品加工技术开发有限公司 | Control circuit for geothermal heating of agricultural greenhouse |
| CN107092228A (en) * | 2017-06-30 | 2017-08-25 | 合肥贺财工程项目管理有限公司 | A kind of civil engineering project building site drainage management system |
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