CN2524998Y - High sensitivity rail circuit - Google Patents
High sensitivity rail circuit Download PDFInfo
- Publication number
- CN2524998Y CN2524998Y CN 01276439 CN01276439U CN2524998Y CN 2524998 Y CN2524998 Y CN 2524998Y CN 01276439 CN01276439 CN 01276439 CN 01276439 U CN01276439 U CN 01276439U CN 2524998 Y CN2524998 Y CN 2524998Y
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- CN
- China
- Prior art keywords
- circuit
- resistance
- capacitor
- relay
- stabilivolt
- 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.)
- Expired - Fee Related
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- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a rail circuit technique applied in railway signal system, in particular to a highly-sensitive rail circuit, and solves the disadvantages in the prior rail circuits of bad shunt circuit and unreliable relay. The technical proposal of the utility model is that a highly-sensitive rail circuit has a varistor directly and parallely connected with an indoor relay circuit which consists of a bridge full wave rectifier, a capacitor, a diode, a triode, a stabilivolt, a LED, a resistance and a relay coil. A left input terminal and a right input terminal are connected with the bridge full wave rectifier, and a capacitor C1 is in parallel connection with a bridge circuit, and a resistance R1, the stabilivolt and a resistance R2 are serially connected and then parallely connected with the capacitor C1. One pole of the LED is connected with the resistance R1 and the stabilivolt, and the other pole is connected with an input terminal of the triode. An emitter of the triode is connected with one terminal of the bridge circuit and the diode, the relay coil and a capacitor C2 are parallely connected and then connected with the other input terminal of the triode. The utility model is mainly applied to monitoring the occupation of rail by locomotive.
Description
(1), technical field
The utility model relates to a kind of track circuit technology that is applicable in the railway signal system, particularly a kind of high sensitivity track circuit.
(2), background technology
Track circuit is the equipment that directly reflects the locomotive operation situation, and the quality of its performance directly affects the safety of transportation-production.Railway system's station track circuit is to adopt 480 type continuous exchange of track circuit basically, see shown in Figure 1, form by interior circuit and outdoor circuit, by track transformer, pizo-resistance, the outdoor circuit that slide rheostat is formed, rail and grounding jumper have insulation joint, and relay transformer, pizo-resistance, diode relay link by chamber connection lead and rail and grounding jumper.But 480 type AC track circuit have exposed some the wretched insufficiency parts on the performance to the open air in utilization: track circuit shunting badness, relay can not fall by failure-free.When track circuit shunting badness, easily give the operating personal illusion, can think that storage siding does not have car, can not shift to an earlier date release because of train goes out to cause clearly track switch yet, cause and squeeze trouble or the vehicle accident that slides down, can lead to car accident when situation is serious.
(3), summary of the invention
The utility model technical issues that need to address are to improve the shunting sensitivity of track circuit, make relay can reliably reflect the running condition of rolling stock, guarantee locomotive operation safety.The technical solution of the utility model is achieved in that a kind of high sensitivity track circuit, form by interior circuit and outdoor circuit, by track transformer, pizo-resistance, the outdoor circuit that slide rheostat is formed, it is characterized in that: pizo-resistance is directly with indoor relay circuit and connect, the indoor relay circuit of forming by bridge full wave rectifier, electric capacity, diode, aerotron, stabilivolt, light-emitting diode, resistance and relay coil, left and right sides input terminal connects bridge full wave rectifier, capacitor C
1In parallel with bridge circuit, resistance R
1, stabilivolt, resistance R
2Series connection back and capacitor C
1Parallel connection, light-emitting diode one utmost point and resistance R
1Link with stabilivolt, input end of another utmost point and aerotron links, the emitter of aerotron with link diode, relay coil, capacitor C with bridge circuit one end
2Back in parallel links with another input end of aerotron.The beneficial effects of the utility model are: owing to adopt relay circuit to replace original diode relay, with aerotron the coil of relay is controlled, change the inertia of relay, improved the sensitivity of its action, thereby accomplish that the very little variation of outdoor voltage will change the state of relay, can reflect the take situation of locomotive accurately, to guaranteeing the safety of driving a vehicle and preventing having great significance of accident to track section.
(4) description of drawings
Fig. 1 is prior art 480 type AC track circuit scheme drawings
Fig. 2 is the utility model circuit diagram
Fig. 3 is relay construction figure
1 and 2 is left and right sides input terminal, and 3 is track transformer, and 4 is pizo-resistance, and 5 is slide rheostat, and 6 is insulation joint, and 7 is rail and grounding jumper, 8 relay transformers, and 9 is relay, and 10 is the chamber connection lead, and 11 is bridge full wave rectifier, and 12 is capacitor C
1, 13 is diode, and 14 is relay coil, and 15 is capacitor C
2, 16 is aerotron, and 17 is stabilivolt, and 18 is light-emitting diode, and 19 is resistance R
1, 20 is resistance R
2
(5) specific embodiment
Referring to Fig. 2, a kind of high sensitivity track circuit, form by interior circuit and outdoor circuit, by track transformer 3, pizo-resistance 4, the outdoor circuit that slide rheostat 5 is formed, pizo-resistance 4 directly and relay circuit and connecing, by the indoor relay circuit that bridge full wave rectifier 11, electric capacity, diode 13, aerotron 16, stabilivolt 17, light-emitting diode 18, resistance and relay coil 14 are formed, left and right sides input terminal 1 and 2 connects bridge full wave rectifier 11, capacitor C
112 is in parallel with bridge circuit, resistance R
119, stabilivolt 17, resistance R
220 series connection back and capacitor C
1Parallel connection, light-emitting diode 18 1 utmost points and resistance R
1Link with stabilivolt 17,16 1 input ends of another utmost point and aerotron link, the emitter of aerotron 16 with link diode 13, relay coil 14, capacitor C with bridge circuit one end
215 backs in parallel link with another input end of aerotron.The output voltage of track transformer 3 is brought up to 10.8 volts, and slide rheostat 5 is adopted as 6 Ω/65w, along with the raising of rail surface voltage, can strengthen the breakdown capability of voltage to the rail surface insulation layer; The feed end current-limiting resistance increases, and when shunt, the current-limiting resistance pressure drop increases, and rail surface voltage reduces significantly, thereby has improved shunting sensitivity.Vdc through bridge full wave rectifier 11 is not directly delivered to relay coil 14, is to control through aerotron 16 relays.When railway voltage is 6.1V when above, aerotron 16 conductings, relay reliably picks up; When railway voltage is lower than 5.2V, the aerotron off condition, relay reliably falls.Be relay coil voltage variation by a small margin like this, will cause picking up or falling of relay, promptly change sudden change into, changed the inertia of relay, improve the sensitivity of its action from original gradual change.
Claims (2)
1, a kind of high sensitivity track circuit is made up of interior circuit and outdoor circuit, and by track transformer, the outdoor circuit that pizo-resistance, slide rheostat are formed is characterized in that: pizo-resistance is directly with indoor relay circuit and connect.
2, a kind of high sensitivity track circuit according to claim 1, it is characterized in that: the indoor relay circuit of forming by bridge full wave rectifier, electric capacity, diode, aerotron, stabilivolt, light-emitting diode, resistance and relay coil, left and right sides input terminal connects bridge full wave rectifier, capacitor C
1In parallel with bridge circuit, resistance R
1, stabilivolt, resistance R
2Series connection back and capacitor C
1Parallel connection, light-emitting diode one utmost point and resistance R
1Link with stabilivolt, input end of another utmost point and aerotron links, the emitter of aerotron with link diode, relay coil, capacitor C with bridge circuit one end
2Back in parallel links with another input end of aerotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276439 CN2524998Y (en) | 2001-12-30 | 2001-12-30 | High sensitivity rail circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276439 CN2524998Y (en) | 2001-12-30 | 2001-12-30 | High sensitivity rail circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2524998Y true CN2524998Y (en) | 2002-12-11 |
Family
ID=33680547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01276439 Expired - Fee Related CN2524998Y (en) | 2001-12-30 | 2001-12-30 | High sensitivity rail circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2524998Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455467C (en) * | 2005-04-29 | 2009-01-28 | 宝山钢铁股份有限公司 | Locomotive closing signal triggering alarming device of railway switch |
| CN101320654B (en) * | 2008-05-23 | 2011-08-31 | 淮南矿业(集团)有限责任公司 | Voltage step track relay |
| CN108021035A (en) * | 2017-11-17 | 2018-05-11 | 电子科技大学 | A kind of branch residual voltage amplitude stability method based on compensation leak resistance |
-
2001
- 2001-12-30 CN CN 01276439 patent/CN2524998Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455467C (en) * | 2005-04-29 | 2009-01-28 | 宝山钢铁股份有限公司 | Locomotive closing signal triggering alarming device of railway switch |
| CN101320654B (en) * | 2008-05-23 | 2011-08-31 | 淮南矿业(集团)有限责任公司 | Voltage step track relay |
| CN108021035A (en) * | 2017-11-17 | 2018-05-11 | 电子科技大学 | A kind of branch residual voltage amplitude stability method based on compensation leak resistance |
| CN108021035B (en) * | 2017-11-17 | 2020-07-21 | 电子科技大学 | Shunt residual voltage amplitude stabilizing method based on compensation leakage resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021211 Termination date: 20101230 |