CN205595757U - Voltage abnormity automatic disconnection device is used in suburb construction - Google Patents
Voltage abnormity automatic disconnection device is used in suburb construction Download PDFInfo
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- CN205595757U CN205595757U CN201620341610.2U CN201620341610U CN205595757U CN 205595757 U CN205595757 U CN 205595757U CN 201620341610 U CN201620341610 U CN 201620341610U CN 205595757 U CN205595757 U CN 205595757U
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- power supply
- resistance
- crystal triode
- potentiometer
- relay
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Abstract
The utility model discloses a voltage abnormity automatic disconnection device is used in suburb construction, including power supply circuit, voltage monitor control circuit, protection implementation of circuit and supply circuit, power supply circuit is piled by power transformer T, rectifier bridge and electrolytic capacitor C1 constitutes, voltage monitor control circuit comprises resistance R1~R6, potentiometre RP1, potentiometre RP2, transistor V1 and transistor V2, protection implementation of circuit comprises transistor V3, diode VD5~VD7, relay K's solenoid and electrolytic capacitor C2, supply circuit comprises power indicator HL, relay K's normally closed interlock, resistance R7 and output socket XS. It is simple that it has a circuit, portable, and at alternating current power supply's overtension or cross low the emergence when unusual, can the automatic disconnection power supply, power equipment in the protection construction.
Description
Technical field
This utility model relates to a kind of device that disconnects, and specifically a kind of suburb power supply for construction pressure is abnormal disconnects device automatically.
Background technology
Owing to development and the increasing electrical equipment of society are popularized, electric power has become as one of requisite energy of people；Permitted
Many electric devices are all easily affected by voltage pulsation, perfect, essentially without electricity occurs due to incity, city circuit and transformer station
Press big variation；When but still other suburb carries out engineering construction, it is typically all and from distant place, electric power is transmitted,
Owing to intermediate conveyor is apart from long and away from city, the most easily because of aging circuit or other burst feelings
Condition causes, and the voltage of power of conveying is unstable, fluctuated；Now properly functioning on job location electric device will be subject to
To impact, serious meeting causes device damage, makes engineering cannot continue to be smoothed out；Although existing overvoltage protection device, but
Being that equipment is the biggest, so inconvenient place of often changing is transported, and circuit complexity is inconvenient to keep in repair.
Summary of the invention
The problem existed for above-mentioned prior art, this utility model provides a kind of suburb power supply for construction pressure extremely automatically to disconnect dress
Putting, circuit is simple, it is simple to carry, and when overtension or the too low generation exception of alternating current power supply, can automatically disconnect power supply,
Power equipment in protection construction.
To achieve these goals, the technical solution adopted in the utility model is: this kind of suburb power supply for construction pressure is abnormal from dynamic circuit breaker
Opening apparatus, performs circuit and power supply circuits including power circuit, voltage monitoring control circuit, protection, described power circuit by
Mains transformer T, rectifier bridge stack and electrochemical capacitor C1 composition；Described voltage monitoring control circuit is by resistance R1～R6, current potential
Device RP1, potentiometer RP2, crystal triode V1 and crystal triode V2 composition；Described protection performs circuit by crystal three pole
Pipe V3, diode VD5～VD7, the solenoid of relay K and electrochemical capacitor C2 composition；Described power supply circuits are by power supply
Display lamp HL, the normally closed interlock of relay K, resistance R7 and accessory power outlet XS composition；
Alternating current power supply is connected with one end of mains transformer T, the normally closed interlock of relay K connect with accessory power outlet XS after with friendship
Stream power supply connects, and resistance R7 is connected in parallel on the normally closed interlock two ends of relay K, power supply transformation with power supply indicator HL after connecting
The other end of device T is connected with the 1 of rectifier bridge stack mouthful and 3 mouthfuls, 4 mouthfuls of rectifier bridge stack with the positive pole of electrochemical capacitor C1, resistance
One end of R1, one end of resistance R2, one end of resistance R5, the colelctor electrode of crystal triode V2, the electromagnetic wire of relay K
The positive pole of circle one end, the negative pole of diode VD7 and electrochemical capacitor C2 connects；The other end of resistance R1 is with potentiometer RP1's
One end connect, the other end of potentiometer RP1 with the 2 of rectifier bridge stack mouthfuls, the negative pole of electrochemical capacitor C1, the one of potentiometer RP2
The emitter stage of end, the emitter stage of crystal triode V1, one end of resistance R6 and crystal triode V3 connects, potentiometer RP1
Current potential adjustable side be connected by the base stage of resistance R3 and crystal triode V1, the colelctor electrode of crystal triode V1 and resistance R5
Connect with the positive pole of diode VD5, the negative pole of diode VD5 and the base stage of crystal triode V3 and the negative pole of diode VD6
Connecting, the positive pole of diode VD6 is connected with the other end of resistance R6 and the emitter stage of crystal triode V2, crystal triode
The base stage of V2 is connected by the current potential adjustable side of resistance R4 and potentiometer RP2, and the other end of potentiometer RP2 is with resistance R2's
The other end connects, the colelctor electrode of crystal triode V3 and the solenoid other end of relay K, the positive pole of diode VD7 and
The negative pole of electrochemical capacitor C2 connects.
Further, described crystal triode is bipolar transistor.
Further, the voltage of described alternating current power supply is 220V.
Compared with prior art, this utility model uses power circuit, voltage monitoring control circuit, protection to perform circuit and confession
The mode that electricity circuit combines, the voltage of alternating current power supply is through the blood pressure lowering of mains transformer T, the rectification of rectifier bridge stack and electrolysis electricity
After holding the filtering of Cl, perform circuit for electric voltage observation circuit and protection and l2V DC voltage is provided.Civil power is on the low side or higher time,
The DC voltage at electrochemical capacitor Cl two ends is the most on the low side or higher.Potentiometer RPl is used for setting the lower voltage limit of alternating current power supply,
Potentiometer RP2 is used for setting the upper voltage limit of alternating current power supply；The power equipment of load is powered by power supply circuits.
When the voltage of alternating current power supply is normal, crystal triode Vl is in the conduction state, crystal triode V2 and crystal three pole
Pipe V3 is in cut-off state, and now the solenoid of relay K must not be electric, and alternating current power supply supplies through the normally closed interlock of relay K
Give load.When civil power is on the low side or is increased beyond setting voltage value range, potentiometer RPl, the centre tapped electricity of potentiometer RP2
Pressing the most down or up, when the voltage of alternating current power supply is less than lower voltage limit, crystal triode Vl ends, electrochemical capacitor
The voltage of Cl positive pole adds to the base stage of crystal triode V3 through resistance R5, diode VD5, makes crystal triode V3 turn on,
The solenoid of relay K obtains electric, so that the working power of load is cut off by its normally closed interlock；When civil power is higher than the upper limit
During voltage, crystal triode V2 turns on, and the high level of the emitter stage output of crystal triode V2 adds to crystalline substance through diode VD6
The base stage of body audion V3, makes crystal triode V3 turn on, and the solenoid of relay K obtains electric, so that relay K
Normally closed interlock disconnect so that accessory power outlet XS and alternating current power supply disconnect, stop load supplying.Power supply indicator HL
Light when normal use, extinguish after disconnection.It is simple that it has circuit, it is simple to carries, alternating current power supply overtension or
When too low generation is abnormal, can automatically disconnect power supply, the power equipment in protection construction.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Detailed description of the invention
The utility model is described in further detail below.
As it is shown in figure 1, this utility model includes that power circuit, voltage monitoring control circuit, protection perform circuit and power supply electricity
Road, described power circuit is made up of mains transformer T, rectifier bridge stack and electrochemical capacitor C1；Described voltage monitoring control circuit
It is made up of resistance R1～R6, potentiometer RP1, potentiometer RP2, crystal triode V1 and crystal triode V2；Described protection
Perform circuit to be made up of crystal triode V3, diode VD5～VD7, the solenoid of relay K and electrochemical capacitor C2；
Described power supply circuits are made up of power supply indicator HL, the normally closed interlock of relay K, resistance R7 and accessory power outlet XS；
Alternating current power supply is connected with one end of mains transformer T, the normally closed interlock of relay K connect with accessory power outlet XS after with friendship
Stream power supply connects, and resistance R7 is connected in parallel on the normally closed interlock two ends of relay K, power supply transformation with power supply indicator HL after connecting
The other end of device T is connected with the 1 of rectifier bridge stack mouthful and 3 mouthfuls, 4 mouthfuls of rectifier bridge stack with the positive pole of electrochemical capacitor C1, resistance
One end of R1, one end of resistance R2, one end of resistance R5, the colelctor electrode of crystal triode V2, the electromagnetic wire of relay K
The positive pole of circle one end, the negative pole of diode VD7 and electrochemical capacitor C2 connects；The other end of resistance R1 is with potentiometer RP1's
One end connect, the other end of potentiometer RP1 with the 2 of rectifier bridge stack mouthfuls, the negative pole of electrochemical capacitor C1, the one of potentiometer RP2
The emitter stage of end, the emitter stage of crystal triode V1, one end of resistance R6 and crystal triode V3 connects, potentiometer RP1
Current potential adjustable side be connected by the base stage of resistance R3 and crystal triode V1, the colelctor electrode of crystal triode V1 and resistance R5
Connect with the positive pole of diode VD5, the negative pole of diode VD5 and the base stage of crystal triode V3 and the negative pole of diode VD6
Connecting, the positive pole of diode VD6 is connected with the other end of resistance R6 and the emitter stage of crystal triode V2, crystal triode
The base stage of V2 is connected by the current potential adjustable side of resistance R4 and potentiometer RP2, and the other end of potentiometer RP2 is with resistance R2's
The other end connects, the colelctor electrode of crystal triode V3 and the solenoid other end of relay K, the positive pole of diode VD7 and
The negative pole of electrochemical capacitor C2 connects.
Further, described crystal triode is bipolar transistor.
Further, the voltage of described alternating current power supply is 220V.
When the voltage of alternating current power supply is normal, crystal triode Vl is in the conduction state, crystal triode V2 and crystal three pole
Pipe V3 is in cut-off state, and now the solenoid of relay K must not be electric, and alternating current power supply supplies through the normally closed interlock of relay K
Give load.When civil power is on the low side or is increased beyond setting voltage value range, potentiometer RPl, the centre tapped electricity of potentiometer RP2
Pressing the most down or up, when the voltage of alternating current power supply is less than lower voltage limit, crystal triode Vl ends, electrochemical capacitor
The voltage of Cl positive pole adds to the base stage of crystal triode V3 through resistance R5, diode VD5, makes crystal triode V3 turn on,
The solenoid of relay K obtains electric, so that the working power of load is cut off by its normally closed interlock.When civil power is higher than the upper limit
During voltage, crystal triode V2 turns on, and the high level of the emitter stage output of crystal triode V2 adds to crystalline substance through diode VD6
The base stage of body audion V3, makes crystal triode V3 turn on, and the solenoid of relay K obtains electric, so that relay K
Normally closed interlock disconnect so that accessory power outlet XS and alternating current power supply disconnect, stop load supplying.Power supply indicator HL
Light when normal use, extinguish after disconnection.It is simple that it has circuit, it is simple to carries, alternating current power supply overtension or
When too low generation is abnormal, can automatically disconnect power supply, the power equipment in protection construction.
Claims (3)
1. a suburb power supply for construction pressure disconnects device extremely automatically, it is characterised in that include power circuit, voltage monitoring control
Circuit processed, protection perform circuit and power supply circuits, and described power circuit is by mains transformer T, rectifier bridge stack and electrochemical capacitor
C1 forms；Described voltage monitoring control circuit is by resistance R1～R6, potentiometer RP1, potentiometer RP2, crystal triode V1
Form with crystal triode V2；Described protection performs circuit by crystal triode V3, diode VD5～VD7, relay K
Solenoid and electrochemical capacitor C2 composition；Described power supply circuits are by power supply indicator HL, the normally closed interlock of relay K, electricity
Resistance R7 and accessory power outlet XS composition；
Alternating current power supply is connected with one end of mains transformer T, the normally closed interlock of relay K connect with accessory power outlet XS after with friendship
Stream power supply connects, and resistance R7 is connected in parallel on the normally closed interlock two ends of relay K, power supply transformation with power supply indicator HL after connecting
The other end of device T is connected with the 1 of rectifier bridge stack mouthful and 3 mouthfuls, 4 mouthfuls of rectifier bridge stack with the positive pole of electrochemical capacitor C1, resistance
One end of R1, one end of resistance R2, one end of resistance R5, the colelctor electrode of crystal triode V2, the electromagnetic wire of relay K
The positive pole of circle one end, the negative pole of diode VD7 and electrochemical capacitor C2 connects；The other end of resistance R1 is with potentiometer RP1's
One end connect, the other end of potentiometer RP1 with the 2 of rectifier bridge stack mouthfuls, the negative pole of electrochemical capacitor C1, the one of potentiometer RP2
The emitter stage of end, the emitter stage of crystal triode V1, one end of resistance R6 and crystal triode V3 connects, potentiometer RP1
Current potential adjustable side be connected by the base stage of resistance R3 and crystal triode V1, the colelctor electrode of crystal triode V1 and resistance R5
Connect with the positive pole of diode VD5, the negative pole of diode VD5 and the base stage of crystal triode V3 and the negative pole of diode VD6
Connecting, the positive pole of diode VD6 is connected with the other end of resistance R6 and the emitter stage of crystal triode V2, crystal triode
The base stage of V2 is connected by the current potential adjustable side of resistance R4 and potentiometer RP2, and the other end of potentiometer RP2 is with resistance R2's
The other end connects, the colelctor electrode of crystal triode V3 and the solenoid other end of relay K, the positive pole of diode VD7 and
The negative pole of electrochemical capacitor C2 connects.
A kind of suburb the most according to claim 1 power supply for construction pressure is abnormal disconnects device automatically, it is characterised in that described
Crystal triode is bipolar transistor.
A kind of suburb the most according to claim 1 power supply for construction pressure is abnormal disconnects device automatically, it is characterised in that described
The voltage of alternating current power supply is 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341610.2U CN205595757U (en) | 2016-04-21 | 2016-04-21 | Voltage abnormity automatic disconnection device is used in suburb construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341610.2U CN205595757U (en) | 2016-04-21 | 2016-04-21 | Voltage abnormity automatic disconnection device is used in suburb construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595757U true CN205595757U (en) | 2016-09-21 |
Family
ID=56935739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620341610.2U Expired - Fee Related CN205595757U (en) | 2016-04-21 | 2016-04-21 | Voltage abnormity automatic disconnection device is used in suburb construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205595757U (en) |
-
2016
- 2016-04-21 CN CN201620341610.2U patent/CN205595757U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |