CN206611242U - A kind of control circuit of breaker of plastic casing - Google Patents
A kind of control circuit of breaker of plastic casing Download PDFInfo
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- CN206611242U CN206611242U CN201720374353.7U CN201720374353U CN206611242U CN 206611242 U CN206611242 U CN 206611242U CN 201720374353 U CN201720374353 U CN 201720374353U CN 206611242 U CN206611242 U CN 206611242U
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Abstract
The utility model discloses a kind of control circuit of breaker of plastic casing, opened including closing position into auxiliary contact, point position open into auxiliary contact, motor, switching switch, indicating module, drive module, communication module, control module and power supply module, the control module connects the conjunction position and opened into auxiliary contact simultaneously, point position open into auxiliary contact, switching switch, indicating module, drive module, communication module and power supply module, the power supply module is also connected with the conjunction position and opened into auxiliary contact, point position open into auxiliary contact, switching switch, drive module and motor, the drive module also connects the motor；The utility model is by setting control module, drive module and communication module, the local operation of breaker can not only be met, the remotely monitor control of breaker can also be realized, while by setting indicating module, more can intuitively detect the running status of breaker.
Description
Technical field
The utility model is related to breaker of plastic casing, the control circuit of more particularly to a kind of breaker of plastic casing.
Background technology
Electric product exhibition and electrical equipment in the market, low-voltage circuit breaker are seen everywhere, and particularly mold cased circuit breaker is extremely
Favor, mold cased circuit breaker has two sections of dynamic defencive functions of overload long delay, short-circuit wink, can also be with Electrical leakage, measurement, electricity
The modular units such as behaviour are used cooperatively.In low-voltage distribution system, commonly use it and do limit switch or branch switch, instead of over often
Fuse and knife switch.
But existing electric operation mechanism for breaker with plastics casing realizes electronic divide-shut brake function, does not have position of the switch feedback letter
Number, do not have communication function, divide-shut brake is controlled using electric wiring, it is impossible to realize remote control.
Thus prior art could be improved and improve.
Utility model content
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of control of breaker of plastic casing
Circuit processed, it is intended to solve in current breaker of plastic casing without position of the switch feedback signal, does not have communication function, and can not realize long-range control
Processed the problem of.
In order to achieve the above object, the utility model takes following technical scheme：
A kind of control circuit of breaker of plastic casing, including：
Position is closed to open into auxiliary contact；
Point position is opened into auxiliary contact；
Motor；
For the switching switch for the mode of operation for switching breaker of plastic casing；
For the indicating module for the working condition for indicating the breaker of plastic casing；
For driving the motor to carry out the drive module of separating brake or closing operation to the breaker of plastic casing；
For the communication module communicated with host computer；
For the control module for the working condition for controlling the indicating module, communication module and drive module；
For the power supply module to the control module, drive module and motor；
The control module connect simultaneously the conjunction position open into auxiliary contact, a point position open into auxiliary contact, switching switch, refer to
Show module, drive module, communication module and power supply module, the power supply module is also connected with the conjunction position and opens into auxiliary contact, divides
Position is opened into auxiliary contact, switching switch, drive module and motor, and the drive module also connects the motor.
In the control circuit of described breaker of plastic casing, the control module includes single-chip microcomputer, the P1.1 of the single-chip microcomputer
One end and the power supply module into auxiliary contact are opened in the end connection conjunction position, and the other end ground connection into auxiliary contact is opened in the conjunction position,
2 ends of the P1.2 ends connection switching switch of the single-chip microcomputer and power supply module, the P1.3 ends connection of the single-chip microcomputer are described
Switch 4 ends and the power supply module of switch, 1 end and 3 ends of the switching switch are grounded, the P1.7 ends of the single-chip microcomputer, P3.0/
RXD ends and P3.1/TXD ends are all connected with the communication module, P0.1 ends, P0.3 ends, P0.5 ends and the P0.7 ends of the single-chip microcomputer
The drive module is all connected with, the P2.2 ends of the single-chip microcomputer and P2.3 ends connect the indicating module, the VCC of the single-chip microcomputer
End connection power supply module.
In the control circuit of described breaker of plastic casing, the indicating module includes first resistor, second resistance, combined floodgate and referred to
Show lamp and separating brake indicator lamp, one end of the first resistor connects the P2.3 ends of the single-chip microcomputer, the first resistor it is another
The positive pole of the end connection combined floodgate indicator lamp, the negative pole ground connection of the combined floodgate indicator lamp, one end connection institute of the second resistance
The P2.2 ends of single-chip microcomputer are stated, the other end of the second resistance connects the positive pole of the separating brake indicator lamp, the separating brake indicator lamp
Negative pole ground connection.
In the control circuit of described breaker of plastic casing, the drive module includes the first diode, the second diode, the
Three diodes, switch knob, opening button, driving chip, closing relay, separating brake relay, auxiliary reclay, the first fine motion
Switch, the second microswitch and the 3rd microswitch, the positive pole of first diode connect the P0.1 ends of the single-chip microcomputer, institute
The negative pole for stating the first diode connects the IN1 ends of the driving chip, and the positive pole of second diode connects the single-chip microcomputer
P0.3 ends, the negative pole of second diode connects the IN3 ends of the driving chip, one end connection institute of the switch knob
The P0.5 ends of single-chip microcomputer are stated, the other end of the switch knob connects the IN1 ends of the driving chip, the one of the opening button
The P0.7 ends of the end connection single-chip microcomputer, the other end of the opening button connects the IN3 ends of the driving chip, the driving
The GND ends ground connection of chip, the COM ends of the driving chip connect the power supply module, the OUT1 ends connection of the driving chip
One end of the coil of the closing relay, also by the closing relay the first normally opened contact be grounded, it is described close a floodgate after
The other end of the coil of electrical equipment connects 1 end of first microswitch, and 3 ends of first microswitch pass through described second
Microswitch connects one end and the power supply module of the coil of the auxiliary reclay, the other end of the coil of the auxiliary reclay
It is grounded respectively by the second normally opened contact of the closing relay and the second normally opened contact of the separating brake relay, it is described to drive
The OUT3 ends of dynamic chip connect the positive pole of the 3rd diode, and the negative pole of the 3rd diode connects the separating brake relay
Coil one end, also pass through the first normally opened contact of the separating brake relay and the 3rd microswitch respectively and be grounded, described point
The other end of the coil of lock relay connects 2 ends of first microswitch.
In the control circuit of described breaker of plastic casing, the communication module includes communication input interface, communication chip, led to
Output interface and the first electric capacity are interrogated, the P3.1/TXD ends of the single-chip microcomputer connect described by 1 pin of the communication input interface
The DI ends of communication chip, the P3.0/RXD ends of the single-chip microcomputer connect the communication core by 2 pin of the communication input interface
The RO ends of piece, the P1.7 ends of the single-chip microcomputer pass through the communication input interface 3 pin connect the communication chip DE ends andEnd, the VCC ends connection VCC power supplys of the communication chip, the GND ends of the communication chip pass through first capacitance connection
The VCC power supplys, the A ends of the communication chip connect host computer, the communication chip by 2 pin of the communication output interface
B ends pass through it is described communication output interface 1 pin connect host computer.
In the control circuit of described breaker of plastic casing, the power supply module include external dc power, binding post and
Power supply changeover device, the S1 ends that the positive pole of the external dc power passes through the binding post connect the of the power supply changeover device
One input, the one end for also connecting the motor, the S2 ends that the negative pole of the external dc power passes through the binding post
Connect the second input of the power supply changeover device, connect the motor also by the normally opened contact of the auxiliary reclay
The other end, the first output end connection conjunction position of the power supply changeover device, which is opened, opens into auxiliary contact into auxiliary contact, a point position, cuts
Change P1.1 ends, P1.2 ends, P1.3 ends, P1.6 ends and the VCC ends of switch, one end of the coil of auxiliary reclay and single-chip microcomputer, institute
State the second output head grounding of power supply changeover device.
It is preferred that, the model STC89C51 of the single-chip microcomputer.
It is preferred that, the model ULN2003D of the driving chip.
It is preferred that, the model MAX485 for stating communication chip.
The control circuit of the breaker of plastic casing provided compared to prior art, the utility model, including conjunction position are opened into auxiliary
Contact, a point position are opened into auxiliary contact, motor, switching switch, indicating module, drive module, communication module, control module and confession
Electric module, the control module connect simultaneously the conjunction position open into auxiliary contact, a point position open into auxiliary contact, switching switch, refer to
Show module, drive module, communication module and power supply module, the power supply module is also connected with the conjunction position and opens into auxiliary contact, divides
Position is opened into auxiliary contact, switching switch, drive module and motor, and the drive module also connects the motor；This practicality
It is new by setting control module, drive module and communication module, using drive module and long-range upper machine communication, and pass through control
Molding block receives the switching order of host computer simultaneously according to corresponding command output to the drive module, allows drive module
Drive motor is opened a sluice gate or closed a floodgate to breaker of plastic casing, so as to can not only meet the local operation of breaker, can be with
Realize the remotely monitor control of breaker, while by setting indicating module, for it is long-range/on the spot monitoring more accurately open circuit is provided
Device state, so as to more can intuitively detect the running status of breaker.
Brief description of the drawings
The schematic diagram of the control circuit for the breaker of plastic casing that Fig. 1 provides for the utility model.
Embodiment
The utility model provides a kind of control circuit of breaker of plastic casing, to make the purpose of this utility model, technical scheme
And effect is clearer, clear and definite, the utility model is further described the embodiment that develops simultaneously referring to the drawings.It should manage
Solution, specific embodiment described herein only to explain the utility model, is not used to limit the utility model.
Referring to Fig. 1, the control circuit for the breaker of plastic casing that the utility model is provided, including conjunction position are opened into auxiliary contact
10th, a point position is opened into auxiliary contact 20, motor 30, switching switch 40, indicating module 50, drive module 60, communication module 70, control
Molding block 80 and power supply module 90, the control module 80 connects the conjunction position simultaneously to be opened and is opened into auxiliary contact 10, a point position into auxiliary
Help contact 20, switching switch 40, indicating module 50, drive module 60, communication module 70 and power supply module 80, the power supply module
80, which are also connected with the conjunction position, opens and is opened into auxiliary contact 10, a point position into auxiliary contact 20, switching switch 40, drive module 60 and electronic
Machine 30, the drive module 60 also connects the motor 40.
Specifically, close position to open into the expression breaker of plastic casing of auxiliary contact 10 in position state is closed, closed in breaker of plastic casing
During position, the conjunction position is opened to be closed into auxiliary contact 10；The open position is opened represents that breaker of plastic casing is in open position into auxiliary contact 20
State, in breaker of plastic casing open position, the open position is opened to be closed into auxiliary contact 20, and the motor 30 is used to drive the modeling
Case circuit breaker closes a floodgate or separating brake；The switching switch 40 is used for the mode of operation for switching breaker of plastic casing, the mode of operation bag
Include local operation and remote operation；The indicating module 50 is used for the working condition for indicating the breaker of plastic casing, specific to indicate
The breaker of plastic casing is to be in "on" position or gate-dividing state, is easy to the state of breaker of plastic casing described in user monitoring；Institute
Stating drive module 60 is used to drive 30 pairs of the motor breaker of plastic casing to carry out separating brake or closing operation；The communication mould
Block 70 is used to be communicated with host computer, so as to realize remotely monitor and the control of breaker of plastic casing；The control module 80 is used
In the working condition for controlling the indicating module 50, communication module 70 and drive module 60；The power supply module 90 is used for institute
Control module 80, drive module 60 and motor 30 is stated to power.
The utility model realizes breaker of plastic casing and long-range host computer by setting control module 80 and communication module 70
Communication, while by setting control module 80 and drive module 60, different signals are sent by control module 80 and control to drive
Module realizes different driving operations, so that the remotely monitor to breaker of plastic casing and control are further realized, and this practicality
It is new intuitively to observe the running status of breaker of plastic casing also by setting indicating module 50, and by separately setting power supply
Module 90, AC power is separated with dc source, is solved at present monitoring position on the spot and is indicated to take this breaker of plastic casing
AC power, as long as the problem of exchange dead electricity just can't detect position, the utility model directly rejects ac circuit, from outside
Required dc source is taken, wiring board size reduction, energy consumption reduction can be solved the shared signal of alternating current-direct current and done by the transformation of this part
Disturb and the problem of circuit-breaker status visual inspection.
When it is implemented, please continue to refer to Fig. 1, the control module 80 includes single-chip microcomputer U1, it is preferred that the single-chip microcomputer
U1 uses model STC89C51 single-chip microcomputer, fast with processing speed, the stable advantage of performance.
When it is implemented, one end and power supply module into auxiliary contact 10 are opened in the single-chip microcomputer U1 P1.1 ends connection conjunction position
90, the other end ground connection into auxiliary contact 10, the P1.2 ends connection switching switch 40 of the single-chip microcomputer U1 are opened in the conjunction position
2 ends and power supply module 90, the single-chip microcomputer U1 P1.3 ends connection it is described switching switch 40 4 ends and power supply module 90, institute
1 end and 3 ends for stating switching switch 40 are grounded, and P1.7 ends, P3.0/RXD ends and the P3.1/TXD ends of the single-chip microcomputer U1 connect
The communication module 70 is connect, P0.1 ends, P0.3 ends, P0.5 ends and the P0.7 ends of the single-chip microcomputer U1 are all connected with the drive module
60, the P2.2 ends of the single-chip microcomputer U1 and P2.3 ends connect the indicating module 50, the VCC ends connection power supply of the single-chip microcomputer U1
Module 90.
Further carry out in example, the control module 80 also includes and the single-chip microcomputer U1 crystal oscillating circuits being connected and reset electricity
Road, the crystal oscillating circuit provides clock signal for single-chip microcomputer U1, and the reset circuit is used to reset single-chip microcomputer.
Please continue to refer to Fig. 1, the indicating module 50 include first resistor R1, second resistance R2, combined floodgate indicator lamp D4 and
Separating brake indicator lamp D5, the first resistor R1 and second resistance R2 shield, and the combined floodgate indicator lamp D4 and separating brake refer to
Show that lamp D5 uses light emitting diode, when it is implemented, combined floodgate indicator lamp D4 and separating brake indicator lamp D5 can be set into different face
The light emitting diode of color, such as combined floodgate indicator lamp D4 use blue LED, and separating brake indicator lamp D5 uses emitting red light two
Pole pipe, the utility model is not restricted to this.
When it is implemented, one end of the first resistor R1 connects the P2.3 ends of the single-chip microcomputer U1, the first resistor
The R1 other end connects the positive pole of the combined floodgate indicator lamp D4, the negative pole ground connection of the combined floodgate indicator lamp D4, the second resistance
R2 one end connects the P2.2 ends of the single-chip microcomputer U1, and the other end of the second resistance R2 connects the separating brake indicator lamp D5's
Positive pole, the negative pole ground connection of the separating brake indicator lamp D5.
The utility model by setting indicating module 50, for it is long-range/on the spot monitoring more accurately circuit-breaker status is provided, more
The running status of breaker can be intuitively detected, so as to replace the original outgoing line side below the breaker to take the side of position instruction
Method.
Please continue to refer to Fig. 1, the drive module 60 includes the first diode D1, the second diode D2, the 3rd diode
D3, switch knob K1, opening button K2, driving chip U2, closing relay J1, separating brake relay J2, auxiliary reclay J3,
One microswitch SW1, the second microswitch SW2 and the 3rd microswitch SW3, when it is implemented, the driving chip U2 is used
Model ULN2003D chip, have the advantages that it is high pressure resistant, can electrical current it is big, can directly handle originally needed standard to patrol
The data for collecting buffer to handle, closing relay J1 and separating brake the relay J2 at least has two normally opened contacts, institute
The first microswitch SW1 1 end is stated to close site, 2 ends of the first microswitch SW1 are quantile.
When it is implemented, the positive pole of the first diode D1 connects the P0.1 ends of the single-chip microcomputer U1, the described 1st
Pole pipe D1 negative pole connects the IN1 ends of the driving chip U2, and the positive pole of the second diode D2 connects the single-chip microcomputer U1
P0.3 ends, the negative pole of the second diode D2 connects the IN3 ends of the driving chip U2, one end of the switch knob K1
The P0.5 ends of the single-chip microcomputer U1 are connected, the other end of the switch knob K1 connects the IN1 ends of the driving chip U2, described
Opening button K2 one end connects the P0.7 ends of the single-chip microcomputer U1, and the other end of the opening button K2 connects the driving core
Piece U2 IN3 ends, the GND ends ground connection of the driving chip U2, the COM ends of the driving chip U2 connect the power supply module
90, the driving chip U2 OUT1 ends connect one end of the coil of the closing relay J1, also by the combined floodgate relay
Device J1 the first normally opened contact J1-1 ground connection, the other end of the coil of the closing relay J1 connects first microswitch
SW1 1 end, 3 ends of the first microswitch SW1 pass through the second microswitch SW2 connections auxiliary reclay J3
Coil one end and power supply module 90, the other end of the coil of the auxiliary reclay J3 passes through the closing relay respectively
J1 the second normally opened contact J1-2 and the separating brake relay J2 the second normally opened contact J2-2 ground connection, the driving chip U2's
OUT3 ends connect the positive pole of the 3rd diode D3, and the negative pole of the 3rd diode D3 connects the separating brake relay J2's
One end of coil, also it is grounded respectively by the first normally opened contact J2-1 and the 3rd microswitch SW3 of the separating brake relay J2,
The other end of the coil of the separating brake relay J2 connects 2 ends of the first microswitch SW1.
Please continue to refer to Fig. 1, the communication module 60 includes communication input interface J-485, communication chip U3, communication output
1 pin that interface RS485 and the first electric capacity C1, the single-chip microcomputer U1 P3.1/TXD ends pass through the communication input interface J-485
The DI ends of the communication chip U3 are connected, the P3.0/RXD ends of the single-chip microcomputer U1 pass through the 2 of the communication input interface J-485
Pin connects the RO ends of the communication chip U3, and the P1.7 ends of the single-chip microcomputer U1 pass through 3 pin for communicating input interface J-485
Connect the communication chip U3 DE ends andEnd, the VCC ends connection VCC power supplys of the communication chip U3, the communication chip
U3 GND ends are by the first electric capacity C1 connections VCC power supplys, and the A ends of the communication chip U3 are defeated by the communication
Outgoing interface RS485 2 pin connection host computer, the B ends of the communication chip U3 pass through 1 pin for communicating output interface RS485
Connect host computer.
The utility model is by setting communication module 60, using the working condition of single-chip microcomputer U1 communication controls module 60, from
And the communication of breaker of plastic casing and host computer is realized, further realize remotely monitor and the control of breaker of plastic casing.
In preferred embodiment, the communication chip uses model MAX485 chip, and breaker of plastic casing is logical by 485
News communicated with host computer, certainly in other embodiments, the breaker of plastic casing can also by 232 communications etc. mode and
Host computer is communicated, and the utility model is not restricted to this.
Please continue to refer to Fig. 1, the power supply module turns including external dc power 901, binding post 902 and power supply
Parallel operation 903, the positive pole of the external dc power 901 connects the power supply changeover device by the S1 ends of the binding post 902
903 first input end, the one end for also connecting the motor 30, the negative pole of the external dc power 901 are connect by described
The S2 ends of line terminals 902 connect the second input of the power supply changeover device 903, also by the normally opened of the auxiliary reclay J3
The other end of the contact J3-1 connections motor 30, the first output end of the power supply changeover device 903 connects the conjunction position and opened
Enter auxiliary contact 10, point position to open into auxiliary contact 20, switching switch 40, one end of auxiliary reclay J3 coil and single-chip microcomputer U1
P1.1 ends, P1.2 ends, P1.3 ends, P1.6 ends and VCC ends, the second output head grounding of the power supply changeover device 903.
Specifically, external dc power 903 is external power supply, in preferred embodiment, the external dc power 903
For 24V dc sources, powered to motor 30, after being changed also by power supply changeover device 903, export 5V dc sources to other moulds
Block is powered, and the utility model solves at present monitoring position on the spot and indicate to take by the way that AC power is separated with dc source
The AC power of this breaker of plastic casing, as long as exchange dead electricity is the problem of just can't detect position, the utility model is by ac circuit
Directly reject, required dc source is taken from outside, the transformation of this part can solve wiring board size reduction, energy consumption reduction
The problem of alternating current-direct current shares signal interference and circuit-breaker status visual inspection.
In order to be better understood from the utility model, the control process of breaker of plastic casing is elaborated below in conjunction with Fig. 1：
In an initial condition, crystal oscillator loop and reset loop are normally run, and P1.2 ends are high level, and P1.3 ends are high electricity
Flat, P1.1 ends are high level, and P1.6 ends are high level；P2.2 ends are low level, and P2.3 ends are low level；P0.1 ends are low electricity
Flat, P0.3 ends are low level, and P0.5 ends are low level, and P0.7 ends are low level.
When using local operation mode, SW2 leads to SW1 conjunctions site and led to.
A. breaker of plastic casing closes position：Switching switch 40 is turned to regard to position, and its 1 end and 2 terminations are logical so that single-chip microcomputer
P1.2 is opened at end into low level, and because breaker of plastic casing is in a point position, therefore a point position is opened and closed into auxiliary contact so that P1.6 open at end into
Low level, P2.2 outputs high level in end, further such that separating brake indicator lamp D5 is bright, P0.5 outputs high level in end, when pressing combined floodgate
During button K1, driving chip U2 IN1 pin obtain high level, OUT1 pin output low level so that closing relay J1 coil is obtained
Electricity, J1 is by electronic work, further such that closing relay J1 the first normally opened contact J1-1 closures, closing relay J1 self-sustainings
Action, J1-2 closures, so that auxiliary reclay J3 coil obtains electric, its normally opened contact J3-1 closures, motor 30 is operated,
Control breaker of plastic casing closes, and causes the first microswitch SW1 conjunction site 1 pin to disconnect, and the SW1 pin of quantile 2 leads to, close a floodgate after
Electrical equipment J1 coil losing electricity, causes the second normally opened contact J1-2 of closing relay to disconnect so that auxiliary reclay J3 coil
Dead electricity, J3-1 disconnects, and motor stops operating, it is achieved thereby that the conjunction position of breaker of plastic casing.
B. breaker of plastic casing divides position：Switching switch 40 is turned to regard to position, and its 3 end and 4 terminations are logical so that single-chip microcomputer
P1.3 is opened at end into low level, due to breaker of plastic casing be in close position, therefore close position open into auxiliary contact closure so that P1.1 open at end into
Low level, P2.3 outputs high level in end, further such that combined floodgate indicator lamp D4 is bright, P0.7 outputs high level in end, when pressing combined floodgate
During button K2, driving chip U2 IN3 pin obtain high level, and OUT3 exports low level so that separating brake relay J2 coil obtains electric,
J2 is by electronic work, further such that separating brake relay J2 the first normally opened contact J2-1 closures, closing relay J2 self-sustainings are moved
Make, J2-2 closures, so that auxiliary reclay J3 coil obtains electric, its normally opened contact J3-1 closures, motor 30 is operated, and is controlled
Breaker of plastic casing separating brake processed, while SW3 microswitches closure makes the direct actings of closing relay J2 mono-, until switching separating brake in place,
The the first microswitch SW1 pin of quantile 2 is caused to disconnect, the SW1 pin of conjunction site 1 leads to, and separating brake relay J2 coil losing electricity is led
The second normally opened contact J2-2 of separating brake relay is caused to disconnect so that auxiliary reclay J3 coil losing electricity, J3-1 disconnects, motor stops
Rotation stop is moved, it is achieved thereby that point position of breaker of plastic casing.
When using teleoperated manner, SW2 leads to SW1 conjunctions site and led to.
A. breaker of plastic casing closes position：Switching switch 40 turns to host computer operating position, and its 3 end and 4 terminations are logical so that single
The P1.2 ends of piece machine are opened into low level, and because breaker of plastic casing is in a point position, therefore a point position is opened into auxiliary contact closure so that P1.6
End is opened into low level, and P2.2 outputs high level in end, further such that separating brake indicator lamp D5 is bright, it is upper that single-chip microcomputer U1 receives a distant place
Machine is sent " order of closing a floodgate ", and P0.1 outputs at end high level, and driving chip U2 IN1 pin obtain high level, and OUT1 pin export low electricity
It is flat so that closing relay J1 coil obtains electric, and J1 is by electronic work, further such that closing relay J1 the first normally opened contact
J1-1 is closed, closing relay J1 self-sustainings action, J1-2 closures, so that auxiliary reclay J3 coil obtains electric, its is normal
Contact J3-1 closures are opened, motor 30 is operated, control breaker of plastic casing closes, and causes the first microswitch SW1 pin of conjunction site 1
Disconnect, the SW1 pin of quantile 2 leads to, and closing relay J1 coil losing electricity causes the second normally opened contact J1-2 of closing relay
Disconnect so that auxiliary reclay J3 coil losing electricity, J3-1 disconnects, and motor stops operating, it is achieved thereby that breaker of plastic casing
Conjunction position.
B. breaker of plastic casing divides position：Switching switch 40 is turned to regard to position, and its 3 end and 4 terminations are logical so that single-chip microcomputer
P1.3 is opened at end into low level, due to breaker of plastic casing be in close position, therefore close position open into auxiliary contact closure so that P1.1 open at end into
Low level, P2.3 outputs high level in end, further such that combined floodgate indicator lamp D4 is bright, single-chip microcomputer U1 receives distant place host computer and sent
" separating brake order ", P0.3 outputs at end high level, and driving chip U2 IN3 pin obtain high level, OUT3 output low levels so that separating brake
Relay J2 coil obtains electric, and J2 is by electronic work, further such that separating brake relay J2 the first normally opened contact J2-1 closures, are closed
Lock relay J2 self-sustainings are acted, J2-2 closures, so that auxiliary reclay J3 coil obtains electric, its normally opened contact J3-1 is closed
Close, motor 30 is operated, control breaker of plastic casing separating brake, while SW3 microswitches closure makes the direct actings of closing relay J2 mono-,
Until switching separating brake in place, the first microswitch SW1 pin of quantile 2 is caused to disconnect, the SW1 pin of conjunction site 1 leads to, separating brake relay
Device J2 coil losing electricity, causes the second normally opened contact J2-2 of separating brake relay to disconnect so that auxiliary reclay J3 deactivation coil
Electricity, J3-1 disconnects, motor stalls, it is achieved thereby that point position of breaker of plastic casing.
In summary, the utility model can meet disconnected by setting control module, drive module and communication module, not only
The local operation of road device, can also realize the remotely monitor control of breaker, while be remotely by setting indicating module/just
Ground monitoring provides more accurately circuit-breaker status, so as to more can intuitively detect the running status of breaker.
It is understood that for those of ordinary skills, can according to the technical solution of the utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (9)
1. a kind of control circuit of breaker of plastic casing, it is characterised in that including：
Position is closed to open into auxiliary contact；
Point position is opened into auxiliary contact；
Motor；
For the switching switch for the mode of operation for switching breaker of plastic casing；
For the indicating module for the working condition for indicating the breaker of plastic casing；
For driving the motor to carry out the drive module of separating brake or closing operation to the breaker of plastic casing；
For the communication module communicated with host computer；
For the control module for the working condition for controlling the indicating module, communication module and drive module；
For the power supply module to the control module, drive module and motor；
The control module connect simultaneously the conjunction position open into auxiliary contact, a point position open into auxiliary contact, switching switch, indicate mould
Block, drive module, communication module and power supply module, the power supply module, which is also connected with the conjunction position, to be opened and is opened into auxiliary contact, a point position
Enter auxiliary contact, switching switch, drive module and motor, the drive module also connects the motor.
2. the control circuit of breaker of plastic casing according to claim 1, it is characterised in that the control module includes monolithic
One end and power supply module into auxiliary contact are opened in machine, the P1.1 ends connection conjunction position of the single-chip microcomputer, and the conjunction position is opened into auxiliary
The other end of contact is helped to be grounded, 2 ends of the P1.2 ends connection switching switch of the single-chip microcomputer and power supply module, the monolithic
4 ends of the P1.3 ends connection switching switch of machine and power supply module, 1 end and 3 ends of the switching switch are grounded, the list
P1.7 ends, P3.0/RXD ends and the P3.1/TXD ends of piece machine are all connected with the communication module, the P0.1 ends of the single-chip microcomputer, P0.3
End, P0.5 ends and P0.7 ends are all connected with the drive module, and the P2.2 ends of the single-chip microcomputer and P2.3 ends connect the instruction mould
Block, the VCC ends connection power supply module of the single-chip microcomputer.
3. the control circuit of breaker of plastic casing according to claim 2, it is characterised in that the indicating module includes first
Resistance, second resistance, combined floodgate indicator lamp and separating brake indicator lamp, one end of the first resistor connect the P2.3 of the single-chip microcomputer
End, the other end of the first resistor connects the positive pole of the combined floodgate indicator lamp, and the negative pole ground connection of the combined floodgate indicator lamp is described
One end of second resistance connects the P2.2 ends of the single-chip microcomputer, and the other end of the second resistance connects the separating brake indicator lamp
Positive pole, the negative pole ground connection of the separating brake indicator lamp.
4. the control circuit of breaker of plastic casing according to claim 2, it is characterised in that the drive module includes first
Diode, the second diode, the 3rd diode, switch knob, opening button, driving chip, closing relay, separating brake relay
Device, auxiliary reclay, the first microswitch, the second microswitch and the 3rd microswitch, the positive pole of first diode connect
The P0.1 ends of the single-chip microcomputer are connect, the negative pole of first diode connects the IN1 ends of the driving chip, the two or two pole
The positive pole of pipe connects the P0.3 ends of the single-chip microcomputer, and the negative pole of second diode connects the IN3 ends of the driving chip, institute
The one end for stating switch knob connects the P0.5 ends of the single-chip microcomputer, and the other end of the switch knob connects the driving chip
IN1 ends, one end of the opening button connects the P0.7 ends of the single-chip microcomputer, and the other end connection of the opening button is described to drive
The IN3 ends of dynamic chip, the GND ends ground connection of the driving chip, the COM ends of the driving chip connect the power supply module, institute
State driving chip OUT1 ends connect the closing relay coil one end, also by the first normal of the closing relay
Contact ground is opened, the other end of the coil of the closing relay connects 1 end of first microswitch, first fine motion
3 ends of switch connect one end and the power supply module of the coil of the auxiliary reclay by second microswitch, it is described in
Between the other end of coil of relay pass through the second normally opened contact of the closing relay and the separating brake relay respectively
Second normally opened contact is grounded, and the OUT3 ends of the driving chip connect the positive pole of the 3rd diode, the 3rd diode
Negative pole connect the separating brake relay coil one end, also respectively by the first normally opened contact of the separating brake relay and
3rd microswitch is grounded, and the other end of the coil of the separating brake relay connects 2 ends of first microswitch.
5. the control circuit of breaker of plastic casing according to claim 2, it is characterised in that the communication module includes communication
Input interface, communication chip, communication output interface and the first electric capacity, the P3.1/TXD ends of the single-chip microcomputer are defeated by the communication
1 pin of incoming interface connects the DI ends of the communication chip, and the P3.0/RXD ends of the single-chip microcomputer pass through the communication input interface
2 pin connect the RO ends of the communication chip, 3 pin that the P1.7 ends of the single-chip microcomputer pass through the communication input interface connect institute
State communication chip DE ends andEnd, the VCC ends connection VCC power supplys of the communication chip, the GND ends of the communication chip lead to
VCC power supplys described in first capacitance connection are crossed, the A ends of the communication chip are connected by 2 pin of the communication output interface
Host computer, the B ends of the communication chip connect host computer by 1 pin of the communication output interface.
6. the control circuit of breaker of plastic casing according to claim 4, it is characterised in that the power supply module includes outside
Dc source, binding post and power supply changeover device, the positive pole of the external dc power are connected by the S1 ends of the binding post
Connect the first input end of the power supply changeover device, also connect one end of the motor, the negative pole of the external dc power leads to
The S2 ends for crossing the binding post connect the second input of the power supply changeover device, also by the normally opened of the auxiliary reclay
The other end of motor described in contact portion, the first output end of the power supply changeover device connects the conjunction position and opens tactile into auxiliary
Point, minute position open into auxiliary contact, switching switch, the P1.1 ends of one end of the coil of auxiliary reclay and single-chip microcomputer, P1.2 ends,
P1.3 ends, P1.6 ends and VCC ends, the second output head grounding of the power supply changeover device.
7. the control circuit of the breaker of plastic casing according to claim 3-6 any one, it is characterised in that the single-chip microcomputer
Model STC89C51.
8. the control circuit of breaker of plastic casing according to claim 4, it is characterised in that the model of the driving chip
ULN2003D。
9. the control circuit of breaker of plastic casing according to claim 5, it is characterised in that the model of the communication chip
MAX485。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374353.7U CN206611242U (en) | 2017-04-11 | 2017-04-11 | A kind of control circuit of breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374353.7U CN206611242U (en) | 2017-04-11 | 2017-04-11 | A kind of control circuit of breaker of plastic casing |
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| Publication Number | Publication Date |
|---|---|
| CN206611242U true CN206611242U (en) | 2017-11-03 |
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ID=60167634
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374353.7U Expired - Fee Related CN206611242U (en) | 2017-04-11 | 2017-04-11 | A kind of control circuit of breaker of plastic casing |
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| Country | Link |
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| CN (1) | CN206611242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161983A (en) * | 2020-01-10 | 2020-05-15 | 国网浙江桐庐县供电有限公司 | Air switch for realizing remote closing control |
| CN111446703A (en) * | 2020-04-29 | 2020-07-24 | 柳州海格电气股份有限公司 | Method and device for molded case circuit breaker based on intelligent Internet of things |
-
2017
- 2017-04-11 CN CN201720374353.7U patent/CN206611242U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161983A (en) * | 2020-01-10 | 2020-05-15 | 国网浙江桐庐县供电有限公司 | Air switch for realizing remote closing control |
| CN111446703A (en) * | 2020-04-29 | 2020-07-24 | 柳州海格电气股份有限公司 | Method and device for molded case circuit breaker based on intelligent Internet of things |
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Granted publication date: 20171103 Termination date: 20180411 |