CN209535103U - A kind of track circuit guard system - Google Patents
A kind of track circuit guard system Download PDFInfo
- Publication number
- CN209535103U CN209535103U CN201821597123.8U CN201821597123U CN209535103U CN 209535103 U CN209535103 U CN 209535103U CN 201821597123 U CN201821597123 U CN 201821597123U CN 209535103 U CN209535103 U CN 209535103U
- Authority
- CN
- China
- Prior art keywords
- track circuit
- guard system
- coil
- air core
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model provides a kind of track circuit guard system, the system comprises choke transformer, air core coil, resonance matching unit, compensation tuned cells, wherein, the choke transformer includes choking-winding and two leading-out terminals, and the choke transformer passes through two leading-out terminal respectively and two tracks are realized and connected；The air core coil includes choke coil and two leading-out terminals, and the air core coil passes through two leading-out terminal respectively and two tracks are realized and connected；The resonance matching unit is connected to the air core coil both ends；The compensation tuned cell, including the oscillation branch being connected in parallel and capacitive branch, the compensation tuned cell is connected between two tracks.The track circuit guard system of the utility model can effectively eliminate the cross-talk amount of adjacent area section after mechanical insulated joint breakage failure, and the influence that the radio-frequency component that can be greatly reduced in traction current monitors track circuit, guarantee the operation security of the railway system.
Description
Technical field
The utility model belongs to technical field of rail traffic, in particular to a kind of track circuit guard system.
Background technique
Currently, generally using audio frequency track circuit in Railways Stations, track-circuit signalling is a kind of fsk signal, the fsk signal
In the locomotive signal information that can be identified containing locomotive vehicle-mounted equipment.Using mechanical insulated joint to station track circuit section in standing
It is divided.When breakage failure occurs in mechanical insulated joint, the areas track circuit Hui Yue of adjacent sections is transmitted, when more area's signal width
When degree meets mobile unit threshold level, mobile unit can be caused to act, occur cab signal upgrading display when serious, it is serious to endanger
Evil railway operation safety.
It is delivering path since track circuit relies on rail, rail is locomotive aerial drainage approach, when being back to change by rail
When containing radio-frequency component in the traction current of electric institute, behind approach track circuit receiving end, track circuit receiving end can be sealed in, formation
Interference signal causes track circuit monitoring curve to change, and influences to safeguard unit judgement and work normally, while also having aggravated maintenance
Work load.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of track circuit guard system.
A kind of track circuit guard system the system comprises choke transformer, air core coil, resonance matching unit, is mended
Repay tuned cell, wherein
The choke transformer includes choking-winding and two leading-out terminals, and the choke transformer passes through two respectively
Leading-out terminal and two tracks are realized and are connected；
The air core coil includes choke coil and two leading-out terminals, and the air core coil passes through two exit respectively
Sub realize with two tracks connects；
The resonance matching unit is connected to the air core coil both ends；
The compensation tuned cell, including the oscillation branch being connected in parallel and capacitive branch, the compensation tuned cell connects
It connects between two tracks.
Further, the choke transformer further includes iron core, adaptation coil and is adapted to coil forming circuit with described
Adapter and breaker.
Further, the resonance matching unit includes tuning part and compatible portion.
Further, the resistance ladle copper track lead such as described choke transformer use passes through leading-out terminal and two rails
Road connection.
Further,
The compatible portion includes transformer, the first compensation inductance and the second compensation inductance, the first electrolytic capacitor and second
Electrolytic capacitor；
First electrolytic capacitor and the second electrolytic capacitor are connected to the both ends of the transformer first coil；
The first compensation inductance and the second compensation inductance are connect respectively at the both ends of second coil of transformer.
Further, the resonance matching unit conducting wire is connect with the air core coil.
Further, the air core coil is connected with ladle copper track lead by connection terminal and two tracks
It connects.
Further, the oscillation branch includes concatenated first capacitor and inductance；Capacitive branch includes the second capacitor.
Further, the compensation tuned cell is connect by connection terminal with track with ladle copper track lead.
The track circuit guard system of the utility model can effectively eliminate adjacent area section after mechanical insulated joint breakage failure
Cross-talk amount, and the influence that the radio-frequency component that can be greatly reduced in traction current monitors track circuit guarantees railway system
The operation security of system.Other features and advantages of the utility model will illustrate in the following description, also, partly from froming the perspective of
It becomes apparent in bright book, or is understood and implementing the utility model.The purpose of this utility model and other advantages can
It is achieved and obtained by structure pointed in the specification, claims and drawings.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the brief principle figure of the track circuit guard system according to the utility model embodiment；
Fig. 2 shows the circuit structure schematic diagrams according to the choke transformer of the utility model embodiment；
Fig. 3 shows the circuit structure schematic diagram of the resonance matching unit according to the utility model embodiment；
Fig. 4 shows the circuit structure schematic diagram of the compensation tuned cell according to the utility model embodiment；
Fig. 5, which is shown, gets over area and preventing principle according to the signal of the track circuit guard system of the utility model embodiment
Figure；
When Fig. 6 shows the rail return current imbalance according to device unshielded in track circuit and contains high frequency harmonic components
Preventing principle figure；
Fig. 7 shows the preventing principle figure of the track circuit guard system according to the utility model embodiment.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment clearly and completely illustrates the technical scheme in the embodiment of the utility model, it is clear that retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The track circuit guard system of the utility model includes choke transformer BE, air core coil SVA, resonance matching unit
PT, compensation tuned cell TB.As shown in Figure 1, the utility model track circuit system is arranged in the section in track circuit, and
And transformer BE, air core coil SVA, compensation tuned cell TB are connected across in the section between two tracks, and resonance matching
Unit PT is connected to the both ends air core coil SVA.
The main function of choke transformer BE is in the track circuit guard system of the utility model, conducting traction electricity
Stream, makes it pass through mechanical insulated joint, is returned to electric substation.The utility model track circuit guard system as shown in Figure 2
Two choke transformers.Left side is a kind of empty choke transformer, including choke coil and iron core as shown in Figure 2, wherein chokes
There are three leading-out terminal 1-3 for circle tool.Empty choke transformer is connect by choke coil leading-out terminal 1 and leading-out terminal 2 with track, is drawn
Terminal 3 can be connect with the leading-out terminal 3 of the choke coil of choke transformer in adjacent sections out, wherein the choke transformer
BE can with etc. resistance ladle copper track lead connect with track by leading-out terminal.Right side as shown in Figure 2 is a kind of chokes
Adapter transformer, including choke coil, iron core, adaptation coil, adapter, breaker Rd, wherein choke coil and above-mentioned empty chokes become
Choke coil in depressor is identical.It protects, is also set up outside choke transformer and cabinet in order to be realized to choke transformer.
The choke transformer BE of the utility model shows high impedance to audio frequency track circuit signal, by choke coil and draws
Industrial frequency traction electric current is connected in terminal 1 and leading-out terminal 2 out；Power frequency series resonance is constituted by adaptation coil, adapter, is presented low
Impedance transforms to rail side, reduces rail side power-frequency voltage；Audio frequency track circuit signal is constituted simultaneously by adaptation coil, adapter
Join resonance, high impedance is presented and transforms to rail side, does not consume audio signal energies.
The air core coil SVA of the utility model track circuit guard system includes choke coil, leading-out terminal, and protection sky
The box body of wire-core coil SVA.
Air core coil SVA provides the stabilization inductance for generating parallel resonance for the tuning part of resonance matching unit, and can be right
Low ESR is presented in high-frequency harmonic in traction current, and forms short-circuit effect to radio-frequency component, and high-frequency harmonic is effectively reduced and is formed
Rail surface voltage and in the high frequency voltage that rail side is formed, this will effectively reduce interference to track circuit monitoring device.It is described
Air core coil SVA can be connect by leading-out terminal with track with ladle copper track lead.
The resonance matching unit PT of the utility model track circuit guard system is made of tuning part and compatible portion.Such as
Fig. 3 shows the circuit structure diagram of resonance matching unit PT, tuning part as shown in Figure 3 include oscillation branch (by inductance TL1,
With inductance TL1 be connected in series capacitor C3 constitute circuit) and capacitive branch (by capacitor C4, the capacitor C5 in parallel with capacitor C4
The circuit of composition), the oscillation branch is connected in parallel with capacitive branch.Branch is vibrated to adjacent sections track circuit frequency signal
Series resonance is formed, resonance impedance levels off to zero, is formed " zero impedance ", realizes first of protection to adjacent signals.The vibration
It swings branch to be connected in parallel with capacitive branch, constitutes parallel resonance with air core coil, formed " pole impedance ", meet this section track electricity
Road frequency signal transmission.
Compatible portion in resonance matching unit PT includes transformer AFT, two compensation inductance PTL, two electrolytic capacitors
C1 and C2, described two electrolytic capacitor C1 and C2 are connected to the both ends of the transformer AFT first coil, described two
Compensation inductance PTL is connect respectively at the both ends of second coil of transformer, and compatible portion realizes rail by connecting pin E1 and E2
The matching transmission of signal between cable.The resonance matching unit PT passes through U1 copper sheet terminal and U2 copper sheet terminal and institute with conducting wire
State air core coil SVA connection.The air core coil SVA and resonance matching unit PT constitutes track circuit working portion, and to phase
Adjacent area section track-circuit signalling forms first of protection, forms the higher resistance to track-circuit signalling frequency.
The compensation tuned cell TB of the utility model track circuit guard system include oscillation branch and with the oscillation branch
Capacitive branch in parallel.If Fig. 4 shows the circuit structure diagram of compensation tuned cell, as shown in figure 4, oscillation branch includes capacitor
C and with the concatenated inductance L of the capacitor C, capacitive branch includes capacitor C0.The oscillation branch is to adjacent sections track electricity
Road frequency signal forms series resonance, and resonance impedance levels off to zero, is formed " zero impedance ", realizes anti-to the second of adjacent signals
Shield.The capacitive branch and the oscillation branch circuit parallel connection, make the compensation tuned cell TB in this section track circuit frequency
Under be equivalent to 25uF capacitor, compensate this section rail inductance, transmit this section Signal Matching.
The compensation tuned cell TB is connect with ladle copper track lead with track, is in this section track-circuit signalling
It is now 25uF compensating electric capacity characteristic, Low ESR is rendered as to adjacent sections track-circuit signalling.
In general, (the insulation joint between 8DG and 1G as described in Figure 5 after the adjacent sections mechanical insulated joint of train rail is damaged
Occur damaged), the track-circuit signallings of adjacent sections by the insulation joint of connection, rail, occupy wheel, insulation joint both ends gripped
Convertor transformer central point forms channel, is formed and gets over area's signal code, occupies wheel to signal code is formed on the rail of front, by locomotive
Induction of signal coil receives, and after more signal code size in area's is more than specified value, mobile unit is caused to act, and then causes locomotive letter
Number mistake display, cause cab signal to upgrade when serious.
The signal that Fig. 5 shows the utility model track circuit guard system gets over area and preventing principle figure.As shown in figure 5,
Tuning part and compensation tuned cell TB are respectively formed in the resonance matching unit PT of the utility model track circuit guard system
Double protection to track-circuit signalling.When 1G is equipped with this kind of protective unit of the utility model, due to resonance matching
The tuber function of tuning part in unit PT, can form first short circuit to more area's signal (is indicated in such as Fig. 5 with solid line with the arrow
1700Hz signal code flow direction), the area rail Nei Yue signal code size is greatly reduced.It is adjusted when in resonance matching unit PT
When humorous partial fault, the tuning part in tuned cell TB is compensated (i.e. by capacitor C, inductance L and capacitor C0The tuning electricity of composition
Road) same purpose can be played, second short circuit is formed (such as the 1700Hz indicated in Fig. 5 with dotted line with the arrow to more area's signal
Signal code flow direction), the more area's signal code thus effectively formed after damaged to mechanical insulated joint has carried out short-circuit protection,
Mobile unit is set not receive more area's signal, it is ensured that vehicle-mounted normal work.
As Fig. 6 shows the track circuit guard system based on the utility model in rail return current imbalance and contains high frequency
Preventing principle figure when harmonic component.As shown in fig. 6, when rail return current is uneven and contains high frequency harmonic components (in Fig. 6
When electric current I1 ≠ I2), since empty choke transformer and matching transformer do not have filter function, larger resistance is presented to high-frequency signal
It is anti-, therefore high voltage U can be generated on the rail of receiving end, and then be transmitted to receiving end, it is normal to influence receiving end monitoring device
Work.When using protective device, as shown in fig. 7, high-frequency signal can be presented compared with Low ESR in air core coil, it can be by high frequency
Signal receiving end resonance matching unit voltage clamping in reduced levels, play protective action.
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art are answered
Work as understanding: it is still possible to modify the technical solutions described in the foregoing embodiments, or special to part of technology
Sign is equivalently replaced；And these are modified or replaceed, each reality of the utility model that it does not separate the essence of the corresponding technical solution
Apply the spirit and scope of a technical solution.
Claims (9)
1. a kind of track circuit guard system, the system comprises choke transformer, air core coil, resonance matching unit, compensation
Tuned cell, wherein
The choke transformer includes choking-winding and two leading-out terminals, and the choke transformer passes through two extraction respectively
Terminal and two tracks are realized and are connected；
The air core coil includes choke coil and two leading-out terminals, the air core coil pass through respectively two leading-out terminal with
Two tracks realize connection；
The resonance matching unit is connected to the air core coil both ends；
The compensation tuned cell, including the oscillation branch being connected in parallel and capacitive branch, the compensation tuned cell is connected to
Between two tracks.
2. track circuit guard system according to claim 1, wherein
The choke transformer further includes iron core, adaptation coil and is adapted to the adapter and break that coil is formed into a loop with described
Road device.
3. track circuit guard system according to claim 1, wherein
The resonance matching unit includes tuning part and compatible portion.
4. track circuit guard system according to claim 1 or 2, wherein
The resistance ladle copper track leads such as the choke transformer use are connect by leading-out terminal with two tracks.
5. track circuit guard system according to claim 3, wherein
The compatible portion includes transformer, the first compensation inductance and the second compensation inductance, the first electrolytic capacitor and the second electrolysis
Capacitor；
First electrolytic capacitor and the second electrolytic capacitor are connected to the both ends of the transformer first coil；
The first compensation inductance and the second compensation inductance are connect respectively at the both ends of second coil of transformer.
6. track circuit guard system described according to claim 1 or 3 or 5, wherein
The resonance matching unit conducting wire is connect with the air core coil.
7. track circuit guard system according to claim 1, wherein
The air core coil is connect by connection terminal with two tracks with ladle copper track lead.
8. track circuit guard system according to claim 1, wherein
The oscillation branch includes concatenated first capacitor and inductance；Capacitive branch includes the second capacitor.
9. track circuit guard system according to claim 1 or 8, wherein
The compensation tuned cell is connect by connection terminal with track with ladle copper track lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597123.8U CN209535103U (en) | 2018-09-28 | 2018-09-28 | A kind of track circuit guard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597123.8U CN209535103U (en) | 2018-09-28 | 2018-09-28 | A kind of track circuit guard system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209535103U true CN209535103U (en) | 2019-10-25 |
Family
ID=68245456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821597123.8U Active CN209535103U (en) | 2018-09-28 | 2018-09-28 | A kind of track circuit guard system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209535103U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278798A (en) * | 2018-09-28 | 2019-01-29 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit guard system |
| CN111845850A (en) * | 2020-07-28 | 2020-10-30 | 尹永云 | Subway track monitoring circuit |
| CN113353120A (en) * | 2021-07-16 | 2021-09-07 | 固安信通信号技术股份有限公司 | Tuning equipment |
-
2018
- 2018-09-28 CN CN201821597123.8U patent/CN209535103U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278798A (en) * | 2018-09-28 | 2019-01-29 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit guard system |
| WO2020063337A1 (en) * | 2018-09-28 | 2020-04-02 | 北京全路通信信号研究设计院集团有限公司 | Track circuit protection system |
| CN111845850A (en) * | 2020-07-28 | 2020-10-30 | 尹永云 | Subway track monitoring circuit |
| CN111845850B (en) * | 2020-07-28 | 2022-03-29 | 山西世恒铁路技术有限公司 | Subway track monitoring circuit |
| CN113353120A (en) * | 2021-07-16 | 2021-09-07 | 固安信通信号技术股份有限公司 | Tuning equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209535103U (en) | A kind of track circuit guard system | |
| CN102574535B (en) | Rail vehicle | |
| CN101973287A (en) | Non-insulation track circuit | |
| CN201646775U (en) | High-voltage pulse and frequency shift double-standard track circuit | |
| CN109278798A (en) | A kind of track circuit guard system | |
| CN107962982A (en) | A kind of three-phase traction electric power system | |
| CN201022047Y (en) | Choke induction transformer for railway track circuit | |
| CN201026890Y (en) | Train shunt modified phase-sensitive track circuit system inside station | |
| CN208248211U (en) | Mechanical insulated protective device in a kind of track circuit station | |
| CN108082211A (en) | A kind of track circuit interference preventer | |
| US4622522A (en) | Track circuit for AC electrified railways | |
| CN207367766U (en) | A kind of built-in transformer current-limiting apparatus | |
| CN108075618B (en) | Adapter, device for suppressing track circuit harmonic | |
| CN208489367U (en) | Rail vehicle whole earthing or grounding means | |
| WO2018082408A1 (en) | Traction return current apparatus | |
| CN210454839U (en) | Track circuit for compensating steel rail inductance through compensation capacitor | |
| CN210608528U (en) | Rail potential suppression device | |
| CN108092269A (en) | A kind of device with harmonics restraint | |
| CN107985338B (en) | Adapter, device for suppressing track circuit harmonic | |
| CN101145692B (en) | Drawing network high and second harmonic wave and resonance and transient voltage restraint device | |
| CN108001301A (en) | The third-rail feeding device of rail vehicle and rail vehicle system | |
| CN201143894Y (en) | Air core reflux impedor | |
| CN201113555Y (en) | Mixing line carrier network communication carrier signal coupling device | |
| CN201283879Y (en) | Outdoor isolator | |
| CN205945062U (en) | Traction substation higher harmonic first -order high pass filtering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |