CN116331293A - Non-insulation frequency shift track circuit and insulation joint thereof - Google Patents
Non-insulation frequency shift track circuit and insulation joint thereof Download PDFInfo
- Publication number
- CN116331293A CN116331293A CN202111600515.1A CN202111600515A CN116331293A CN 116331293 A CN116331293 A CN 116331293A CN 202111600515 A CN202111600515 A CN 202111600515A CN 116331293 A CN116331293 A CN 116331293A
- Authority
- CN
- China
- Prior art keywords
- unit
- traction
- insulation
- resonance
- track circuit
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims abstract description 39
- 238000010992 reflux Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 10
- 230000001939 inductive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an insulation-free frequency shift track circuit and an insulation joint thereof, wherein the insulation joint comprises: the device comprises a resonance unit, a first traction balance unit and a second traction balance unit; the first traction balance unit, the resonance unit and the second traction balance unit are sequentially connected in parallel with the track circuit between the two adjacent sections, and the first traction balance unit comprises: a first inductor and a second capacitor in series, the second traction balancing unit comprising: a fourth inductor and a third capacitor in series. In the scheme, the resonance unit is used for preventing the frequency shift signal of the track circuit of the adjacent section from being transmitted in a cross-zone mode, and the two traction balance units are used for guaranteeing the traction reflux balance of the track circuit in a series resonance mode, so that compared with the prior art, the scheme can further optimize the traction reflux and keep the balance function; the scheme has the characteristics of simple structure, obvious effect, convenient popularization and the like.
Description
Technical Field
The invention relates to the technical field of track circuits, in particular to an uninsulated frequency shift track circuit and an insulated joint thereof.
Background
The insulating joint in the non-insulated track circuit can be used for realizing electrical isolation in the adjacent track circuit, ensuring smooth transmission of signals of the section and simultaneously ensuring balance of traction reflux, so that the non-insulated track circuit is an important component part in the non-insulated track circuit.
The ZPW-2000A track circuit system is widely applied to the domestic railway signal field, and has the functions of mainly realizing the inspection of the occupied idle state of the steel rail section and effectively maintaining the stability, safety and reliability of railway operation. As one of the currently advanced automatic blocking systems, ZPW-2000A track circuit system mainly realizes electrical isolation of track circuit signals between adjacent sections by means of electrically insulating joints, so that the electrically insulating joints have a critical role in the system. A schematic diagram of the active electrical insulation joint structure in the ZPW-2000A track circuit system is shown in FIG. 1. For port 1, the capacitor C1 and the inductor L1 form a two-element pair segment B signal f 2 Form series resonance, have impedance of about zero, form short circuit effect, and prevent it from transmitting to section A, and the circuit simultaneously transmits section A signal f 1 The capacitance is presented, parallel resonance occurs with an inductor formed by the long steel rail and the air coil SVA, high impedance is presented, and the voltage at the port 1 is improved; at the other side port 2, C3 and L2 form a three-element structure, wherein C2 and L2 pair the signal f at the section A 1 Form series resonance with impedance of about zero, effectively prevent the signal from transmitting to section B, and the three-element structure simultaneously transmits signal f to section B 2 The capacitance and the inductance formed by the long steel rail and the air coil SVA are in parallel resonance, and the impedance is high, so that the voltage at the port 2 is improved. From the above, it can be seen that the air core coil SVA acts significantly in the insulated joint structure, and in addition to this, the SVA presents a low resistance to the traction current, helping to balance the traction current balance between the two rails. In general, the insulation joint length l is about 29m.
Through long-term application, the insulation joint is found to have a zoned dead zone due to structural design defects, namely, when a train runs into the insulation joint, effective shunt inspection cannot be realized, at the moment, the rail circuit system judges that the rail is in an idle state, and the shunt dead zone can cause fault upgrading and is avoided as much as possible. In fact, there is currently no better solution to the split dead zone. In addition, due to the requirement on the speed increase of train operation or the existence of larger traction current in a heavy-load line, when the condition of unbalance of the larger traction current occurs in a steel rail, the larger current passes through the air core SVA, on one hand, although the SVA presents low resistance to the traction current, when a certain resistance value still exists to cause larger pressure difference at two ends of the SVA, the traction current can be connected in series into a track circuit system to form interference to the track circuit system; on the other hand, higher requirements are put on the tolerance of the air core coil when a larger traction current flows through the SVA, so that the damage of the air core coil is accelerated, and finally, the air core coil is disabled. In summary, it is necessary to propose a new structure design of the insulation joint, thoroughly solve the design defect existing in the current insulation joint, and eliminate the potential safety hazard of the track circuit system caused by the insulation joint.
Disclosure of Invention
In view of the above, the invention provides an insulation joint for an uninsulated frequency shift track circuit, which can further optimize the traction reflux maintaining balance function on the basis of ensuring the function of isolating signals with different frequencies from adjacent sections of the uninsulated track circuit; the scheme has the characteristics of simple structure, obvious effect, convenient popularization and the like.
The invention also provides an insulation-free frequency shift track circuit applying the insulation joint for the insulation-free frequency shift track circuit.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an insulation joint for an insulation-free frequency shift track circuit, comprising: the device comprises a resonance unit, a first traction balance unit and a second traction balance unit;
the first traction balance unit, the resonance unit and the second traction balance unit are sequentially connected in parallel with a track circuit between two adjacent sections, and the first traction balance unit comprises: a first inductor and a second capacitor in series, the second traction balancing unit comprising: a fourth inductor and a third capacitor in series.
Preferably, the resonance unit includes: a first resonance unit and a second resonance unit;
the first traction balance unit, the first resonance unit, the second resonance unit and the second traction balance unit are sequentially connected in parallel with the track circuit between two adjacent sections.
Preferably, the first resonance unit includes: a fourth capacitor and a second inductor in series.
Preferably, the second resonance unit includes: a fifth capacitor and a third inductor in series.
Preferably, the method further comprises: a third traction balancing unit and a fourth traction balancing unit;
the third traction balancing unit, the first resonance unit, the second traction balancing unit and the fourth traction balancing unit are sequentially connected in parallel with the track circuit between two adjacent sections; the third traction balancing unit includes: the first capacitor, the fourth traction balancing unit includes: and a second capacitor.
Preferably, the distance between the third traction balance unit and the second resonance unit or the second traction balance unit is a first preset distance l 1 ；
The distance between the fourth traction balance unit and the first traction balance unit or the first resonance unit is a second preset distance l 2 ；
The distance between the first traction balance unit and the second resonance unit is a third preset distance l 3 Or the distance between the first resonance unit and the second traction balance unit is a third preset distance l 3 。
Preferably, the first preset distance l 1 10 to 20m.
Preferably, the second preset distance l 2 10 to 20m.
Preferably, the third preset distance l 3 5-10 m.
An insulation-free frequency-shifting track circuit, comprising: and the insulating joint is used for the uninsulated frequency shift track circuit.
According to the technical scheme, in the insulating section for the non-insulating frequency-shifting track circuit, the resonance unit is used for preventing the frequency-shifting signal of the track circuit in the adjacent section from being transmitted in a cross-zone mode, and the two traction balance units are used for guaranteeing the traction reflux balance of the track circuit in a series resonance mode, so that compared with the prior art, the scheme can further optimize the traction reflux balance function; the scheme has the characteristics of simple structure, obvious effect, convenient popularization and the like.
The invention also provides an insulation-free frequency shift track circuit, which has the corresponding beneficial effects due to the adoption of the insulation joint for the insulation-free frequency shift track circuit, and the description can be referred to in the prior art, and the details are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electrical insulation joint in a prior art ZPW-2000A track circuit system;
fig. 2 is a schematic diagram of a tuning area of an insulation joint for an insulation-free frequency-shift track circuit according to an embodiment of the present invention.
Wherein 10 is a first traction balance unit, 20 is a second traction balance unit, 30 is a first resonance unit, 40 is a second resonance unit, 50 is a third traction balance unit, 60 is a fourth traction balance unit, 70 is a first port, and 80 is a second port;
l1 is a first inductor, L2 is a second inductor, L3 is a third inductor, L4 is a fourth inductor, C1 is a first capacitor, C2 is a second capacitor, C3 is a third capacitor, C4 is a fourth capacitor, C5 is a fifth capacitor, and C6 is a sixth capacitor.
Detailed Description
The patent aims at providing an insulation joint for an insulation-free frequency-shift track circuit, which can effectively prevent track circuit signal transmission in a cross-zone manner and improve the problem of shunt dead zones in active tuning areas. Meanwhile, the structure adopts a series resonance mode to transmit traction current, so that the transmission impedance of the traction current can be reduced, and the balance degree of the traction current between the rails can be effectively enhanced. The traction current transmission adopts a double-channel parallel connection mode, and the redundancy structure design can further reduce the traction current transmission impedance and improve the safety and reliability of the traction current transmission.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The insulation joint for an insulation-free frequency shift track circuit provided by the embodiment of the invention, as shown in fig. 2, comprises: a resonance unit, a first traction balancing unit 10 and a second traction balancing unit 20;
the first traction balancing unit 10, the resonance unit and the second traction balancing unit 20 are sequentially connected in parallel to a track circuit between two adjacent sections, and the first traction balancing unit 10 includes: the first inductor L1 and the second capacitor C2 connected in series, and the second traction balancing unit 20 includes: a fourth inductor L4 and a third capacitor C3 in series.
In this scheme, it should be noted that, the resonance unit is used to prevent the cross-zone transmission of the signals of the track circuits with different frequencies in the adjacent sections; in addition, the first traction balancing unit 10 and the second traction balancing unit 20 are designed in such a way that the traction balancing units are in series resonance for traction reflux signals, and the impedance is 0, so that traction current between two steel rails is balanced, namely, the traction reflux balance is ensured by adopting a series resonance mode for the two traction balancing units in the scheme, and compared with the prior art, the traction reflux balancing unit has a further optimization effect.
As can be seen from the above technical solution, in the insulation joint for an insulation-free frequency-shift track circuit provided by the embodiment of the present invention, the resonance unit is used to prevent the frequency-shift signal of the track circuit in the adjacent section from being transmitted in a cross-zone, and then the two traction balance units are used to ensure the traction reflux balance of the track circuit in a series resonance manner, so that compared with the prior art, the solution can further optimize the traction reflux balance function; the scheme has the characteristics of simple structure, obvious effect, convenient popularization and the like.
In this scheme, as shown in fig. 2, the resonance unit includes: a first resonance unit 30 and a second resonance unit 40;
the first traction balancing unit 10 and the first resonance unit 30, the second resonance unit 40 and the second traction balancing unit 20 are sequentially connected in parallel to the track circuit between the adjacent two sections. Wherein the first resonating unit 30 is used to prevent the signal of its distal section (e.g., section B in fig. 2) from being transmitted over to its proximal section (e.g., section a in fig. 2); the second resonating unit 40 is used to prevent signals of its distal section (e.g., section a in fig. 2) from being transmitted over to its proximal section (e.g., section B in fig. 2). In the scheme, two resonance units are arranged in the track circuit so as to prevent the signals of the track circuits with different frequencies in two adjacent sections from being transmitted in a cross-zone manner.
Specifically, as shown in fig. 2, the first resonance unit 30 includes: a fourth capacitor C4 and a second inductor L2 connected in series. The first resonator element 30 in this embodiment is designed such that the signal to its far end section (e.g. the signal f of section B in fig. 2) 2 ) A series resonance is formed and the impedance is 0 to prevent the signal from being transmitted into its proximal section (section a in fig. 2).
Further, as shown in fig. 2, the second resonance unit 40 includes: a fifth capacitor C5 and a third inductor L3 in series. Similarly, the second resonant cell 40 in this embodiment is designed so as to be responsive to the signal of the far end section thereof (e.g., the signal f of section A in FIG. 2 1 ) A series resonance is formed and the impedance is 0 so as to prevent the signal from being transmitted to a section at its near end (e.g., section B in fig. 2).
Still further, as shown in fig. 2, the insulation joint for an insulation-free frequency shift track circuit provided by the embodiment of the invention further includes: a third traction balancing unit 50 and a fourth traction balancing unit 60;
the third traction balancing unit 50, the first traction balancing unit 10, the first resonance unit 30, the second resonance unit 40, the second traction balancing unit 20 and the fourth traction balancing unit 60 are sequentially connected in parallel with the track circuit between the adjacent two sections; the third traction balancing unit 50 includes: the first capacitor C1, the fourth traction balancing unit 60 includes: and a second capacitor C2. In the scheme, the third traction balance unit 50 and the fourth traction balance unit 60 are additionally arranged on two sides of the original insulation joint structure, so that the traction reflux maintaining balance function can be optimized further; in addition, the resonant units and the traction balance units of the insulating joint are distributed in such a way that two sides of the track circuit are balanced to traction reflux, and the middle of the track circuit is isolated from signals. That is, as shown in fig. 2, the traction balance units of the insulation joint in the present solution are distributed on two sides (two groups on each side), and the resonance units are distributed in the middle.
Specifically, in order to satisfy the voltage amplitude enhancement of the present section and prevent the adjacent section signal interference, correspondingly, as shown in fig. 2, the distance between the third traction balancing unit 50 and the second resonant unit 40 or the second traction balancing unit 20 is the first preset distance l 1 The method comprises the steps of carrying out a first treatment on the surface of the The distance between the fourth traction balance unit 60 and the first traction balance unit 10 or the first resonance unit 30 is a second preset distance l 2 The method comprises the steps of carrying out a first treatment on the surface of the The distance between the first traction balance unit 10 and the second resonance unit 40 is a third preset distance l 3 Or the distance between the first resonance unit 30 and the second traction balance unit 20 is a third preset distance l 3 。
Furthermore, in the present embodiment, the first traction balance unit 10 is configured to balance the signal of the proximal section thereof (e.g., the signal f of the section A in FIG. 2 1 ) Is inductive and corresponds to an inductor, and the inductor is connected with the inductor 1 The long steel rail and the first capacitor C1 of the third traction balance unit form parallel resonance so as to ensure that signals of a near-end section of the long steel rail are effectively transmitted in the section; in additionThe second traction balancing unit 20 is responsive to the signal of its proximal section (e.g., signal f of section B in fig. 2) 2 ) Is inductive and corresponds to an inductor, and the inductor is connected with the inductor 2 The long rail and the second capacitor C2 of the fourth traction balance unit 60 form a parallel resonance for ensuring effective transmission of signals in the near end section thereof.
Further, a first preset distance l 1 Can be calculated according to the parameters of the steel rail. In order to better enhance the signal voltage of the section and avoid the interference of adjacent section signals, correspondingly, a first preset distance l 1 Is preferably 10-20 m, and the first preset distance l 1 13m.
Still further, a second predetermined distance l 2 Can be calculated according to the parameters of the steel rail. Likewise, in order to better enhance the signal voltage of the present segment while avoiding adjacent segment signal interference, correspondingly, a second preset spacing l 2 Is preferably 10-20 m, and the second preset distance l 2 13m.
In the scheme, in order to facilitate the balance of power frequency traction current between two steel rails and simultaneously facilitate the improvement of the quality factor of resonance impedance, correspondingly, the third preset distance l 3 5-10 m.
The embodiment of the invention also provides an insulation-free frequency shift track circuit, which comprises: and the insulating joint is used for the uninsulated frequency shift track circuit. The insulation joint for the uninsulated frequency shift track circuit is adopted in the scheme, so that the scheme has corresponding beneficial effects, and the description can be referred to in the prior art, and the details are not repeated.
The present solution is further described in connection with the following specific embodiments:
the purpose of the invention is that:
the scheme is based on the requirement of the current track circuit on the insulating joint, and provides a new insulating joint which can prevent the adjacent section track circuit from frequency shift signal transmission in a cross-zone manner, can meet the requirement of balancing traction current between two tracks, and has simple structure and obvious effect.
Detailed description of the technical scheme of the invention:
based on analyzing the structure of the insulation joint of the active track circuit, the technical scheme of the patent is provided. The design of the patent can ensure the basic insulation function, namely, prevent signal cross-region transmission between different sections and overcome the problem of shunt dead zone to a certain extent. The balancing problem of traction current is also included in the patent related to the insulating joint structure. The invention designs an insulating joint for isolating adjacent sections of different frequency track circuit signals, such as section A and section B f shown in FIG. 2 1 And f 2 The specific description is as follows:
(1) The insulating joint comprises a first unit (namely a third traction balance unit 50) formed by connecting a capacitor C1 in series, a second unit (namely a first traction balance unit 10) formed by connecting an inductor L1 and a capacitor C1 in series, a third unit (namely a first resonance unit 30) formed by connecting a capacitor C4 and an inductor L2 in series, a fourth unit (namely a second resonance unit 40) formed by connecting a capacitor C5 and an inductor L3 in series, a fifth unit (namely a second traction balance unit 20) formed by connecting an inductor L4 and a capacitor C3 in series, and a sixth unit (namely a fourth traction balance unit 60) formed by connecting a capacitor C2 in series;
wherein the second unit and the third unit are connected in parallel, and the fourth unit and the fifth unit are connected in parallel. The distance between the first unit and the fourth unit (fifth unit) is l 1 The method comprises the steps of carrying out a first treatment on the surface of the The distance between the sixth unit and the second unit (third unit) is l 2 The method comprises the steps of carrying out a first treatment on the surface of the Distance l between second cell (third cell) and fourth cell (fifth cell) 3 ；
(2) Third cell pair section B signal f 2 Forming a series resonance with an impedance of 0 to prevent the signal from being transmitted to the section a; fourth cell pair section A signal f 1 Forming a series resonance with an impedance of 0 to prevent the signal from being transmitted to the section B; the second unit and the fifth unit are in series resonance for traction reflux signals, and the impedance is 0, so that traction current between two steel rails is balanced;
(3) The second and third units together are inductive to the segment A signal, corresponding to an inductor, which is coupled to 1 The long rail and the first unit capacitor C1 form parallel resonance for protectingValidating the segment a signal for transmission in the segment; the fourth and fifth elements together are inductive to the segment B signal, corresponding to an inductor, which is coupled to l 2 The long steel rail and the sixth unit capacitor C2 form parallel resonance to ensure that the signal of the section B is effectively transmitted in the section;
(4) The first port 70 and the second port 80 are used to connect the transmitting side or receiving side constituent units in the existing track circuit.
The invention has the advantages that:
1. the third unit and the fourth unit respectively form series resonance for the signals of the section B and the section A, the impedance is about zero, and the formation of short circuit can effectively prevent the signals of the adjacent sections from carrying out cross-zone transmission, so that the most basic function of an insulating section is ensured;
2. the second unit and the third unit are inductive to the section A signal together and are equivalent to an inductor, and the inductor, the l1 long steel rail and the first unit capacitor C1 form parallel resonance so as to ensure that the section A signal is effectively transmitted in the section; the fourth unit and the fifth unit are inductive to the section B signal together and are equivalent to an inductor, and the inductor, the l2 long steel rail and the sixth unit capacitor C2 form parallel resonance so as to ensure that the section B signal is effectively transmitted in the section;
3. according to analysis of the technical scheme of the patent, the steel rail l3 is divided into a signal overlapping area of the section A and the section B, and the length of the area is greatly shortened compared with the length of an active insulating section, so that the problem of a shunt dead zone when a train passes through the section can be effectively avoided;
4. in this patent, second unit and fifth unit are series resonance to traction reflux respectively, and impedance is about zero, compares in simple air core coil, more can effectively reduce traction current transmission channel impedance, strengthens the interrail traction current balance, adopts binary channels parallel structure design simultaneously, further reduces interrail traction current transmission channel impedance. In addition, the structure is designed for the traction current in a double-channel redundancy way, when one channel fails, the other channel can still continue to play a role, and the safety and the reliability of the system are improved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An insulation joint for an insulation-free frequency shift track circuit, comprising: a resonance unit, a first traction balancing unit (10) and a second traction balancing unit (20);
the first traction balancing unit (10), the resonance unit and the second traction balancing unit (20) are sequentially connected in parallel to a track circuit between two adjacent sections, and the first traction balancing unit (10) comprises: a first inductor (L1) and a second capacitor (C2) connected in series, the second traction balancing unit (20) comprising: a fourth inductor (L4) and a third capacitor (C3) connected in series.
2. The insulation joint for an uninsulated frequency shift rail circuit according to claim 1, wherein said resonance unit comprises: a first resonance unit (30) and a second resonance unit (40);
the first traction balance unit (10) and the first resonance unit (30), and the second resonance unit (40) and the second traction balance unit (20) are sequentially connected in parallel with a track circuit between two adjacent sections.
3. The insulation joint for an insulation-free frequency shift rail circuit according to claim 2, wherein the first resonance unit (30) includes: a fourth capacitor (C4) and a second inductor (L2) connected in series.
4. The insulation joint for an insulation-free frequency shift rail circuit according to claim 2, wherein the second resonance unit (40) includes: a fifth capacitor (C5) and a third inductor (L3) in series.
5. The insulation joint for an insulation-free frequency shift rail circuit according to claim 2, further comprising: a third traction balancing unit (50) and a fourth traction balancing unit (60);
the third traction balancing unit (50), the first traction balancing unit (10), the first resonance unit (30), the second resonance unit (40), the second traction balancing unit (20) and the fourth traction balancing unit (60) are sequentially connected in parallel with a track circuit between two adjacent sections; the third traction balancing unit (50) includes: -a first capacitor (C1), the fourth traction balancing unit (60) comprising: a second capacitor (C2).
6. The insulation joint for an insulation-free frequency shift rail circuit according to claim 5, wherein a distance between the third traction balance unit (50) and the second resonance unit (40) or the second traction balance unit (20) is a first preset distance l 1 ；
The distance between the fourth traction balance unit (60) and the first traction balance unit (10) or the first resonance unit (30) is a second preset distance l 2 ；
The distance between the first traction balance unit (10) and the second resonance unit (40) is a third preset distance l 3 Or the distance between the first resonance unit (30) and the second traction balance unit (20) is a third preset distance l 3 。
7. The insulation joint for an uninsulated frequency shift rail circuit according to claim 6, wherein said first predetermined distance l 1 10 to 20m.
8. According to claim 6An insulation joint for an uninsulated frequency shift rail circuit, characterized in that the second preset interval l 2 10 to 20m.
9. The insulation joint for an insulation-free frequency shift rail circuit according to claim 6, wherein the third preset spacing l 3 5-10 m.
10. An insulation-free frequency-shifting track circuit, comprising: an insulating joint, characterized in that the insulating joint is an insulating joint for an insulation-free frequency shift track circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600515.1A CN116331293A (en) | 2021-12-24 | 2021-12-24 | Non-insulation frequency shift track circuit and insulation joint thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600515.1A CN116331293A (en) | 2021-12-24 | 2021-12-24 | Non-insulation frequency shift track circuit and insulation joint thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116331293A true CN116331293A (en) | 2023-06-27 |
Family
ID=86877746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111600515.1A Pending CN116331293A (en) | 2021-12-24 | 2021-12-24 | Non-insulation frequency shift track circuit and insulation joint thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116331293A (en) |
-
2021
- 2021-12-24 CN CN202111600515.1A patent/CN116331293A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100493970C (en) | Audio frequency orbit circuit impedance matching circuit in station | |
| CN103278552B (en) | A kind of device detecting the anti-conductive interference of track circuit | |
| CN201240392Y (en) | High shunt sensitivity 25Hz phase detecting track circuit for electrified sections | |
| CN207029205U (en) | A kind of new non-insulated track circuit | |
| CN116331293A (en) | Non-insulation frequency shift track circuit and insulation joint thereof | |
| CA1223327A (en) | Track circuit | |
| CN108092487B (en) | Device for suppressing track circuit harmonic wave | |
| CN209535103U (en) | Track circuit protection system | |
| CN116331292A (en) | Non-insulation frequency-shift track circuit and automatic blocking insulation joint thereof | |
| CN102658783B (en) | Device for realizing safe base reflow of voice frequency system track circuit in railroad station | |
| CN219007827U (en) | Insulation joint and circuit for ZPW-2000A non-insulation frequency-shift automatic blocking | |
| CN220549064U (en) | Non-insulation frequency shift track circuit and insulation joint for non-insulation frequency shift automatic blocking | |
| CN101301896B (en) | Electric impedance-adjustable industrial frequency protective type track circuit mechanical insulated joint | |
| CN108082211A (en) | Track circuit interference protection device | |
| JPS6137576A (en) | Improved type rail circuit for alternating current electrification type railway | |
| CN217477305U (en) | Insulation joint and circuit for ZPW-2000A non-insulation frequency shift track circuit | |
| EA202091837A1 (en) | RAIL CIRCUIT PROTECTION SYSTEM | |
| CN107985338B (en) | Adapter, device for suppressing track circuit harmonic | |
| CN210454839U (en) | Track circuit for compensating steel rail inductance through compensation capacitor | |
| CA2054315C (en) | Railroad rail signal receiver | |
| CN115173831B (en) | Track circuit impedance matching device and system | |
| CN201283879Y (en) | Outdoor isolator | |
| CN107985130B (en) | Insulating joint | |
| CN107985129B (en) | Insulating joint | |
| CN215042805U (en) | Circuit for reducing potential difference between two ends of insulating joint of track circuit in station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |