CN208707306U - Track insulation knot arc-extinction device - Google Patents
Track insulation knot arc-extinction device Download PDFInfo
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- CN208707306U CN208707306U CN201821592504.7U CN201821592504U CN208707306U CN 208707306 U CN208707306 U CN 208707306U CN 201821592504 U CN201821592504 U CN 201821592504U CN 208707306 U CN208707306 U CN 208707306U
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- 238000009413 insulation Methods 0.000 title claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 230000001131 transforming effect Effects 0.000 claims 1
- 230000035484 reaction time Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
A kind of track insulation knot arc-extinction device, including the first, second, third and fourth adjusting circuit, self-oscillation trigger circuit, bidirectionally conductive circuit and switch S, the self-oscillation trigger circuit include comparison circuit and NE555 timer；+ 12V power supply adjusts the adjustable reference voltage signal Vref of circuit output through first, the bipolar voltage signal at the both ends switch S adjusts circuit output unipolarity direct current signal Vo through second, reference voltage signal Vref and unipolarity direct current signal Vo are input to self-oscillation and go out trigger circuit, the output signal after the processing of self-oscillation trigger circuit, the signal drives third to adjust circuit and the 4th and adjusts circuit output pulse signal by bridge driver-external switch U3, bidirectionally conductive loop works are driven, bidirectionally conductive circuit is in parallel with switch S.The utility model can shorten the reaction time of arc-extinction device, and False Rate is low；Using silicon-controlled positive inverse parallel, bidirectionally conductive function is realized, so that input voltage range is bigger, sensitive effect is more preferable, and compact.
Description
Technical field
The utility model relates to extinguishing arc technical fields, and in particular to a kind of track insulation knot arc-extinction device.
Background technique
Existing city rail arc-extinction device mainly between the track of both ends, has installed a single-phase conducting device additional, when
When having train to pass through on track from assigned direction, device conducting is formed into a loop, to realize extinguishing arc between two sections of tracks.
There are also one is increase checking device in orbit, according to detection train by when voltage determined single-phase by logic judgment
The on-off of conducting device.Currently, these devices all have the following defects；First is that is used is all the device of single-phase conducting, electric current
It can only be flowed through from side；Second is that there is delay in detection device, it is easy to cause to judge by accident, so that extinguishing arc dress cannot be timely connected
It sets.In addition, the arc-extinction device volume for having installed detection device additional is larger, need to reserve certain installation space, occupied space is big.
Summary of the invention
It becomes attached to arc-extinction device in view of the above-mentioned problems of the prior art, the utility model provides a kind of track, it can
Realize bidirectionally conductive, input voltage range is bigger, and no-delay, the reaction time is fast, can fast conducting arc-extinction device, it is small in size
Ingeniously, it is not take up space.
A kind of track insulation knot arc-extinction device of the utility model, including the first adjusting circuit, the second adjusting circuit, self-oscillation
Trigger circuit, third adjust circuit, the 4th adjusting circuit, bidirectionally conductive circuit and switch S, the self-oscillation trigger circuit packet
Include comparison circuit and NE555 timer；+ 12V power supply adjusts the adjustable reference voltage signal Vref of circuit output through first, opens
Close the both ends S bipolar voltage signal through second adjust circuit output unipolarity direct current signal Vo, reference voltage signal Vref and
Unipolarity direct current signal Vo is input to comparison circuit, and 2 feet of NE555 timer are input to after comparison circuit is handled, then passes through
3 feet of NE555 timer export, and the signal of output adjusts circuit through third respectively and the 4th adjusting circuit is input to bidirectionally conductive
Circuit, triggers bidirectionally conductive loop works, and the bidirectionally conductive circuit is in parallel with switch S.
Preferably, first adjusting circuit include resistance R4, adjustable resistance PR1, resistance R10, controllable accurate source of stable pressure VR1,
Capacitor C4, the mono- termination+12V power supply of resistance R4, for the other end through the one end adjustable resistance PR1 connecting resistance R10, resistance R10 is another
End ground connection, adjustable resistance PR1 is adjustable termination controllable accurate source of stable pressure VR1 2 feet, the 1 foot connecting resistance of controllable accurate source of stable pressure VR1
R4, while outputting reference voltage signal Vref, 3 feet ground connection, capacitor C4 mono- terminate 1 foot of controllable accurate source of stable pressure VR1, the other end
Ground connection.
Preferably, the second adjusting circuit includes resistance R1, R2, R3, R5, R6, R7, R8, R9, capacitor C3, diode D1,
D2, operational amplifier U1A, U1B；Wherein, resistance R5 mono- terminates bipolar voltage signal, and the other end connects operation amplifier through resistance R6
The noninverting input of the reverse input end of device U1A, operational amplifier U1A is grounded through resistance R8, exports terminating diode D2 cathode,
Diode D2 anode connects the reverse input end of operational amplifier U1B through resistance R7, and the noninverting input of operational amplifier U1B is through electricity
Hinder R9 ground connection, output end output single-pole direct current signal Vo；Resistance R1, R2 series connection are followed by common end and fortune in resistance R5, R6
Between the output end for calculating amplifier U1B, resistance R3 connects the anode in the reverse input end and diode D2 of operational amplifier U1A
Between, the cathode of diode D2 connects the anode of diode D1, and the cathode of diode D1 connects the reverse input end of operational amplifier U1A,
The common end of reverse input end connecting resistance R1, R2 of operational amplifier U1B；The common end of capacitor C3 mono- terminating resistor R5, R6, separately
One end ground connection.
Preferably, bidirectionally conductive circuit is made of silicon-controlled VT1, VT2 of two reverse parallel connections.
Preferably, third adjusts circuit input end and connects 5 feet of bridge driver-external switch U3, output termination terminals
Sub- P1, it includes pulse transformer T1, resistance R16, R17, R20, R22, R24, diode D3, metal-oxide-semiconductor that the third, which adjusts circuit,
Q2, wherein resistance R22, R24 connect latter termination 5 feet of bridge driver-external switch U3, other end ground connection, metal-oxide-semiconductor Q2
Grid connects on the circuit between resistance R22, R24, source electrode ground connection, and drain electrode connects diode D3 anode, diode by resistance R20
D3 anode connects the second input terminal of pulse transformer T1, and it is defeated that cathode by resistance R16 connects 12V power supply, pulse transformer T1 first end
Enter end, resistance R17 is connected in parallel between the first output end of pulse transformer T1 and second output terminal, and pulse transformer T1 first is exported
End and second output terminal connect 2 feet of connecting terminal P1,1 foot respectively；
4th adjusting circuit is identical as third adjusting circuit structure, and it is outer that the 4th adjusting circuit input end connects bridge driver-
7 feet of portion switch U3, output end connect 4 feet and 3 feet of connecting terminal P1 respectively；
Preferably, comparison circuit model LM393, pulse transformer T1 model KCB-6A, operational amplifier U1A, U1B
Model OP2177ARZ, bridge driver-external switch U3 model TC4427EOA, metal-oxide-semiconductor Q2 model 75NF75, wiring
1 model PTB750S-04-2-04-3 of terminals P.
Compared with prior art, the utility model does not need additional voltage check device, is touched by internal self-oscillation
Power Generation Road realizes the quick triggering in bidirectionally conductive circuit, shortens the reaction time of arc-extinction device, and False Rate is lower；
Circuit uses silicon-controlled positive inverse parallel, realizes the function of bidirectionally conductive, so that input voltage range is bigger, the spirit of device
Quick effect is more preferable；In addition, the triggering frequency of the utility model self-oscillation trigger circuit is repaired by changing capacitor and resistance value
Change, silicon-controlled conduction mode is more flexible.Due to the voltage detecting circuit that the utility model carries, so that the utility model body
Product greatly reduces, and occupies little space, while reducing hardware device, reduces the failure rate of system, ensure that the normal of circuit
Operation, extends the service life of circuit.
Detailed description of the invention
Fig. 1 is the utility model power principle block diagram；
Fig. 2 is that the utility model first adjusts circuit diagram；
Fig. 3 is that the utility model second adjusts circuit diagram；
Fig. 4 is the circuit diagram in the utility model triggering bidirectionally conductive circuit；
Fig. 5 is the utility model self-oscillation trigger circuit schematic diagram；
Fig. 6 is that the utility model third adjusts circuit diagram；
Fig. 7 is that the utility model the 4th adjusts circuit diagram；
Fig. 8 is the utility model connecting terminal circuit diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Fig. 1, Fig. 6, a kind of track insulation knot arc-extinction device of the utility model, including the first adjusting circuit, second
It adjusts circuit, self-oscillation trigger circuit, third and adjusts circuit, the 4th adjusting circuit, bidirectionally conductive circuit and switch S, such as Fig. 5
Shown, the self-oscillation trigger circuit includes comparison circuit and NE555 timer, and wherein comparison circuit is LM393；+ 12V power supply
The adjustable reference voltage signal Vref of circuit output is adjusted through first, the bipolar voltage signal at the both ends switch S is adjusted through second
Economize on electricity road output single-pole direct current signal Vo, reference voltage signal Vref and unipolarity direct current signal Vo are input to comparison circuit,
2 feet of NE555 timer are input to after comparison circuit is handled, then the output of 3 feet through NE555 timer, the signal point of output
It is not input to bidirectionally conductive circuit after third adjusts circuit and the 4th adjusting processing of circuit, triggers bidirectionally conductive loop works,
The bidirectionally conductive circuit is in parallel with switch S.
As shown in Fig. 2, the preferred embodiment as the utility model, the first adjusting circuit includes resistance R4, adjustable electric
PR1, resistance R10, controllable accurate source of stable pressure VR1, capacitor C4 are hindered, the mono- termination+12V power supply of resistance R4, the other end is through adjustable
The one end resistance PR1 connecting resistance R10, resistance R10 other end ground connection, adjustable resistance PR1 is adjustable to terminate controllable accurate source of stable pressure VR1's
2 feet, the 1 foot connecting resistance R4 of controllable accurate source of stable pressure VR1, while outputting reference voltage signal Vref, 3 feet ground connection, capacitor C4 mono-
Terminate 1 foot of controllable accurate source of stable pressure VR1, other end ground connection.
As shown in figure 3, another preferred embodiment as the utility model, the second adjusting circuit include resistance R1, R2,
R3, R5, R6, R7, R8, R9, capacitor C3, diode D1, D2, operational amplifier U1A, U1B；Wherein, operational amplifier U1A, U1B
Model OP2177ARZ；
Resistance R5 mono- terminates bipolar voltage signal, and the other end connects the reverse input end of operational amplifier U1A through resistance R6,
The noninverting input of operational amplifier U1A is grounded through resistance R8, exports terminating diode D2 cathode, diode D2 anode is through resistance
R7 connects the reverse input end of operational amplifier U1B, and the noninverting input of operational amplifier U1B is grounded through resistance R9, and output end is defeated
Unipolarity direct current signal Vo out；Resistance R1, R2 series connection are followed by the common end in resistance R5, R6 and the output of operational amplifier U1B
Between end, resistance R3 is connect between the reverse input end of operational amplifier U1A and the anode of diode D2, the cathode of diode D2
The anode of diode D1 is connect, the cathode of diode D1 connects the reverse input end of operational amplifier U1A, and operational amplifier U1B's is anti-
To the common end of input terminating resistor R1, R2；The common end of capacitor C3 mono- terminating resistor R5, R6, other end ground connection.
As shown in figure 4, the third preferred way as the utility model, the bidirectionally conductive circuit is by two reverse parallel connections
Silicon-controlled VT1, VT2 composition.
As shown in Fig. 6, Fig. 7, Fig. 8, as the 4th preferred embodiment of the utility model, third adjusts circuit input end and connects electricity
5 feet of bridge driver-external switch U3, output termination connecting terminal P1, it includes pulse transformer T1 that the third, which adjusts circuit,
Resistance R16, R17, R20, R22, R24, diode D3, metal-oxide-semiconductor Q2, wherein pulse transformer T1 model KCB-6A, electric bridge drive
Dynamic device-external switch U3 model TC4427EOA, metal-oxide-semiconductor Q2 model 75NF75, connecting terminal P1 model PTB750S-04-
2-04-3；
Resistance R22, R24 connect latter termination 5 feet of bridge driver-external switch U3, other end ground connection, metal-oxide-semiconductor Q2
Grid connects on the circuit between resistance R22, R24, source electrode ground connection, and drain electrode connects diode D3 anode, diode by resistance R20
D3 anode connects the second input terminal of pulse transformer T1, and it is defeated that cathode by resistance R16 connects 12V power supply, pulse transformer T1 first end
Enter end, resistance R17 is connected in parallel between the first output end of pulse transformer T1 and second output terminal, and pulse transformer T1 first is exported
End and second output terminal connect 2 feet of connecting terminal P1,1 foot respectively；
4th adjusting circuit is identical as third adjusting circuit structure, and it is outer that the 4th adjusting circuit input end connects bridge driver-
7 feet of portion switch U3, output end connect 4 feet and 3 feet of connecting terminal P1 respectively.
When work ,+12V voltage adjusts the adjustable reference voltage signal Vref of circuit output through first, the both ends switch S
Bipolar voltage signal adjusts circuit output unipolarity direct current signal Vo through second, and reference voltage signal Vref and unipolarity are straight
Stream signal Vo is linked into the input terminal of comparison circuit, when unipolarity direct current signal Vo is greater than reference voltage signal Vref, compares
Circuit output high level, the output end of comparison circuit are connected to 2 feet of NE555 timer, and NE555 timer exports high level；
VO' is pulled down to ground level by triode Q1 by the output signal of NE555, and comparison circuit exports low level at this time,
NE555 also exports low level, and triode Q1 is not turned on, and VO' is restored to VO amplitude, and comparison circuit and NE555 continue to output high electricity
Flat, the triode Q1 is 2N7002, and due to the delay circuit of NE555 timer, NE555 timer exports the arteries and veins of cycle stability
Signal is rushed, the output signal of NE555 adjusts circuit and the 4th by bridge driver-external switch U3 driving third and adjusts circuit
In high-power MOS tube Q2 and pulse transformer T1 work, pulse transformer T1 output pulse signal, driving bidirectionally conductive return
Road makes the track of insulation knot two sides discharge because of connection, so as to avoid scaling loss track of striking sparks at insulation knot.
Claims (6)
1. a kind of track insulation knot arc-extinction device, which is characterized in that adjust circuit, the second adjusting circuit, self-oscillation including first
Trigger circuit, third adjust circuit, the 4th adjusting circuit, bidirectionally conductive circuit and switch S, the self-oscillation trigger circuit packet
Include comparison circuit and NE555 timer；+ 12V power supply adjusts the adjustable reference voltage signal Vref of circuit output through first, opens
Close the both ends S bipolar voltage signal through second adjust circuit output unipolarity direct current signal Vo, reference voltage signal Vref and
Unipolarity direct current signal Vo is input to comparison circuit, and 2 feet of NE555 timer are input to after comparison circuit is handled, then passes through
3 feet of NE555 timer export, and the signal of output drives third to adjust circuit and the by bridge driver-external switch U3
Four adjust circuit output pulse signal, drive bidirectionally conductive loop works, and the bidirectionally conductive circuit is in parallel with switch S.
2. a kind of track insulation knot arc-extinction device according to claim 1, which is characterized in that described first adjusts circuit packet
Include resistance R4, adjustable resistance PR1, resistance R10, controllable accurate source of stable pressure VR1, capacitor C4, the mono- termination+12V electricity of resistance R4
Source, the other end is through the one end adjustable resistance PR1 connecting resistance R10, and resistance R10 other end ground connection, adjustable resistance PR1 is adjustable, and termination is controllable
2 feet of precision voltage regulator VR1, the 1 foot connecting resistance R4 of controllable accurate source of stable pressure VR1, while outputting reference voltage signal Vref, 3
Foot ground connection, capacitor C4 mono- terminate 1 foot of controllable accurate source of stable pressure VR1, other end ground connection.
3. a kind of track insulation knot arc-extinction device according to claim 1 or 2, which is characterized in that described second adjusts electricity
Road includes resistance R1, R2, R3, R5, R6, R7, R8, R9, capacitor C3, diode D1, D2, operational amplifier U1A, U1B, wherein
Resistance R5 mono- terminates bipolar voltage signal, and the other end connects the reverse input end of operational amplifier U1A, operation amplifier through resistance R6
The noninverting input of device U1A is grounded through resistance R8, exports terminating diode D2 cathode, and diode D2 anode connects operation through resistance R7
The noninverting input of the reverse input end of amplifier U1B, operational amplifier U1B is grounded through resistance R9, output end output single-pole
Direct current signal Vo；Resistance R1, R2 series connection are followed by between the common end of resistance R5, R6 and the output end of operational amplifier U1B, electricity
Resistance R3 connects between the reverse input end of operational amplifier U1A and the anode of diode D2, and the cathode of diode D2 connects diode
The anode of D1, the cathode of diode D1 connect the reverse input end of operational amplifier U1A, the reverse input end of operational amplifier U1B
The common end of connecting resistance R1, R2；The common end of capacitor C3 mono- terminating resistor R5, R6, other end ground connection.
4. a kind of track insulation knot arc-extinction device according to claim 1 or 2, which is characterized in that the bidirectionally conductive is returned
Route silicon-controlled VT1, VT2 composition of two reverse parallel connections.
5. a kind of track insulation knot arc-extinction device according to claim 4, which is characterized in that third adjusts circuit input end
5 feet of bridge driver-external switch U3 are connect, output termination connecting terminal P1, it includes pulse transforming that the third, which adjusts circuit,
Device T1, resistance R16, R17, R20, R22, R24, diode D3, metal-oxide-semiconductor Q2, wherein the latter termination electricity of resistance R22, R24 series connection
5 feet of bridge driver-external switch U3, other end ground connection, metal-oxide-semiconductor Q2 grid connect on the circuit between resistance R22, R24, source
Pole ground connection, drain electrode connect diode D3 anode by resistance R20, and diode D3 anode connects the second input terminal of pulse transformer T1, bears
Pole connects 12V power supply, pulse transformer T1 first end input terminal by resistance R16, and resistance R17 is connected in parallel on pulse transformer T1 first
Between output end and second output terminal, the first output end of pulse transformer T1 and second output terminal connect the 2 of connecting terminal P1 respectively
Foot, 1 foot；
4th adjusting circuit is identical as third adjusting circuit structure, and the 4th adjusting circuit input end connects bridge driver-outside and opens
7 feet of U3 are closed, output end connects 4 feet and 3 feet of connecting terminal P1 respectively.
6. a kind of track insulation knot arc-extinction device according to claim 5, which is characterized in that comparison circuit model
LM393, pulse transformer T1 model KCB-6A, operational amplifier U1A, U1B model OP2177ARZ, bridge driver-are outer
Portion switch U3 model TC4427EOA, metal-oxide-semiconductor Q2 model 75NF75, connecting terminal P1 model PTB750S-04-2-04-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821592504.7U CN208707306U (en) | 2018-09-28 | 2018-09-28 | Track insulation knot arc-extinction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821592504.7U CN208707306U (en) | 2018-09-28 | 2018-09-28 | Track insulation knot arc-extinction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208707306U true CN208707306U (en) | 2019-04-05 |
Family
ID=65947420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821592504.7U Active CN208707306U (en) | 2018-09-28 | 2018-09-28 | Track insulation knot arc-extinction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208707306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745035A (en) * | 2019-10-29 | 2020-02-04 | 徐州和纬信电科技有限公司 | Arc extinguishing device for insulated joint of steel rail of vehicle section |
-
2018
- 2018-09-28 CN CN201821592504.7U patent/CN208707306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745035A (en) * | 2019-10-29 | 2020-02-04 | 徐州和纬信电科技有限公司 | Arc extinguishing device for insulated joint of steel rail of vehicle section |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 Zhujiang Road North, Yinshan Road East, Tongshan District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Guangzhi Electric Co.,Ltd. Patentee after: XUZHOU HEWEI-XINDIAN ELECTRICITY CO.,LTD. Address before: 221000 Zhujiang Road North, Yinshan Road East, Tongshan District, Xuzhou City, Jiangsu Province Patentee before: XUZHOU RUNZE ELECTRICAL CO.,LTD. Patentee before: XUZHOU HEWEI-XINDIAN ELECTRICITY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 221000 Zhujiang Road North, Yinshan Road East, Tongshan District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Guangshi Electric Co.,Ltd. Patentee after: XUZHOU HEWEI-XINDIAN ELECTRICITY CO.,LTD. Address before: 221000 Zhujiang Road North, Yinshan Road East, Tongshan District, Xuzhou City, Jiangsu Province Patentee before: Jiangsu Guangzhi Electric Co.,Ltd. Patentee before: XUZHOU HEWEI-XINDIAN ELECTRICITY CO.,LTD. |