CN201240394Y

CN201240394Y - High-power LED signal display power supply control apparatus for railway signal

Info

Publication number: CN201240394Y
Application number: CNU2008201263470U
Authority: CN
Inventors: 曹升侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-05-20
Anticipated expiration: 2018-06-13

Abstract

The utility model relates to a railway signal high-power LED signal display power controller belonging to the technical field of railway transportation, which integrates the novel techniques of electromagnetic shield, combined lightning protection, constant-current control, real-time monitoring and automatic warning, and solves the problems of short display range, poor anti-interference property, instable electrical property, high failure rate and poor warning accuracy in the prior art. The railway signal high-power LED signal display power controller comprises a control circuit which is packaged in a square metal box and arranged in an outdoor signal mechanism, and an audible and visual alarm circuit which is packaged in a square plastic box and fixed on a combined rack inside a signal machine room. The indoor and the outdoor circuits are connected in a plug-in manner via conventional signal cables. The technical criteria of the railway signal high-power LED signal display power controller meet the standard specifications issued by the railway ministry. The whole machine is free from field maintenance. The railway signal high-power LED signal display power controller is applied to the assembly with various railway signaling machines in our country.

Description

Railway signaling great power LED signal aspect and indication power control

Affiliated technical field

The utility model is a kind of railway signaling corollary apparatus.In being suitable for the China railways interval, standing, types of signals coordinative composition of equipments dress such as private siding uses.

Railway transportation for a long time facts have proved that the quality of railway signals equipment technical performance, the height of reliable degree are directly connected to the China railways traffic safety.As the signal display apparatus of train traffic control order, should constantly adopt modern high-and-new science and technology to weed out the old and bring forth the new, develop novel railway signal control device more advanced, more stable, safety and reliability, to adapt to the needs of railway construction in China fast development.

Background technology

Existing allied equipment adopts low power LED series connection mode, as long as a luminotron fault is arranged in the utilization, the luminotron of fault did not lose efficacy thereupon yet, directly influenced the normal demonstration of signal.In addition, because the bad signal that causes of its noiseproof feature shows that disorderly phenomenon happens occasionally, and directly influences safety of railway traffic.Moreover existing circuit takes to simulate electric quantity change ratio sampling technique in the failure alarm circuit design, make warning precision and effect very undesirable.What is more, along with system outlet characteristic variation behind the prolongation luminotron temperature build-up of period of service, and then cause signal aspect and indication unusual, and bring many very important potential safety hazards to railway transportation, be difficult to adapt to present China Railway safety, heavy duty, efficient, fast-developing needs.

Summary of the invention

In order to overcome the low power LED series connection light pipe fault that mode caused, also Problem of Failure thereupon of the light pipe of fault not, the utility model adopts the large-power light-emitting diodes parallel way; In order to overcome the undesirable problem of warning effect that the sampling of reporting to the police accurately causes inadequately, the utility model adopts by luminous point position monitoring technology; Cause circuit output characteristic variation in order to overcome working current at last with temperature build-up, and then cause the unusual disadvantage of signal aspect and indication, the utility model has adopted the field blank pipe with working current and the automatic conformability of device temperature to make the core component of control circuit, and adopt the on-load voltage negative-feedback technology, strengthen the stability of electric current; Bring adverse effect in order to overcome outside electromagnetic interference, the utility model adopts the closed metal shell to cut off inside and outside electromagnetic connection; In order to overcome the invasion of stronger surge voltage, the utility model adopts high pressure resistant large value capacitor filtering technique; For the safe driving problems of the sampling that solves short trouble and open circuit fault, the utility model has adopted miniature from recovering the overcurrent protection technology; In order to overcome the Problem of Failure that induction damage to crops caused by thunder causes, the utility model adopts pizo-resistance and discharge bulb combination lightning protection measures.In addition, the utility model all adopts industry or army grade components and parts, to adapt to northern China severe cold and southern extremely hot climate environment.Preferably resolve a series of security hidden troubles that exist in the present China railways signal LED signal aspect and indication power control utilization.

The technical scheme that its technical matters that solves the utility model adopts is: power circuit, current stabilization control circuit, fault sound equipment alarm control circuit, position of fault indication control circuit are set in the can of the profile side of a being body.And it is in-house that it is installed in outdoor signal.Automatic guidance condition circuit and sound and light alarm executive circuit are set on the unit block assembly rack of signal Machine Room AT STATION.By the transmission signals cable indoor and outdoor circuit is unified into a complete system and device.

The automatic guidance condition circuit is to be in series by two overload protection fuses and an indoor monitoring relay and a railway signaling automatic guidance condition to form.Adopt two overload protection fuse protection purposes to be to improve the protection reliability of the elementary electric power system of circuit system.Indoor monitoring relay is used to supervise mode of operation of the present utility model.

Power circuit by a BX-34 type signal transformer make up with a lightning protection, a currents match combination, a compound type rectifier, a high capacity electrolytic condenser, a power control relay, a flywheel diode, two groups of power control relay contacts, a power indicating circuit be electrically connected in proper order and form.

The task of signal transformer is that the interchange that the signal Machine Room is sent here is become 11～16 volts of safety voltages for 220 volts, and the task of rectifier is that interchange is become direct current, and the task of indicator lamp is the mode of operation of indication direct supply.Direct current circuit is taked both positive and negative polarity circuit double break mode, is intended to the obstacle overcome ability of enhanced system, prevents to occur when running into stronger electromagnetic interference the random phenomenons that show such as signal lamp flash of light.

Form by two electric capacity and two rectifier diodes and current-limiting resistance during the currents match device.The purpose of currents match is to guarantee that indoor monitoring relay also can reliable operation when undercurrent.The lightning protection combination is combined by a pizo-resistance and a lightning protection discharge bulb, and its protection voltage is not more than 36 volts.The control contact rated current of power control relay should be greater than 3 times of working current.The reverse withstand voltage 700V of being not less than of compound type rectifier, rated current are not less than 10 times of working current, adopt the purpose of compound type rectifier to be to reduce equipment failure rate, improve the continuous working reliability of signalling set.

The current stabilization control circuit that is fixed in the cuboid can is that electric current automatic control circuit independent of each other that core constitutes is in parallel and forms by the field keyholed back plate that has an electric current automatic control characteristic with 7.Each independently the electric current automatic control circuit all have identical function and effect.Its basic functional principle is: when the electric current of the large-power light-emitting diodes of the keyholed back plate source electrode on the scene of connecting raises for some reason, a keyholed back plate source potential is increased, thereby the grid source potential difference of a keyholed back plate is diminished, force electric current to descend, reach the purpose of stable operation electric current by light-emitting diode; In addition, the led current of keyholed back plate source electrode on the scene of connecting raises for some reason a keyholed back plate self-temperature is risen, because after a keyholed back plate temperature was raised to a certain degree, its internal current passage narrowed down automatically and limits electric current and continue to rise, then working current with regard to autostable at more satisfactory state.Generally speaking, after working current was set up, total system just was in the constant current mode of operation.

7 field keyholed back plate models in the current stabilization control circuit are identical, light-emitting diode running current at its source series all is controlled in 500 milliamperes, be not more than 20 ohm at its coil resistance that drains series connected signal monitoring relay, be not less than 25 volts in that the electric capacity of its grid parallel connection is withstand voltage, flywheel diode withstand voltage in parallel with 7 signal monitoring relays is not less than 700 volts, 7 biasing resistor resistances are not less than 10 kiloohms, are limited to 5.1 kiloohms in 7 adjustable resistance adjustment.

Be connected on 7 in the load circuit and recover fuse only, the short trouble of load can be converted into open circuit fault, thereby make same monitoring relay can finish short circuit and the control task of the two class fault alarms that open circuit.

Fault sound equipment alarm control circuit, position of fault indication control circuit are respectively first group of normal opened contact combination and second group of normal opened contact combinations of 7 signal monitoring relays.The first winding point with parallel way form " or " logic, a junction closure is arranged, just can link up audible alarm circuit; Second winding point is used for distinguishing the indication fault position.

Then explanation has fault to exist if the buzzer phone in the sound and light alarm executive circuit is rung; Fault-indicating lamp will directly be indicated concrete position of fault.

It is that 100～220 millimeters, thickness are not less than on 2 millimeters the circular aluminium sheet that some large-power light-emitting diodes evenly are fixed on diameter according to signal lens size specification.In order to guarantee radiating effect, should make that light-emitting diode is seamless with heating panel, insulation is connected, and with heating panel and original metal signal mechanism body close-coupled, with further raising radiating effect.

According to the distance of railway signal range of a signal, the usage quantity of large-power light-emitting diodes can be selected between 1～7.The wayside signaling range of a signal can use 7 large-power light-emitting diodes at most farthest; Signal display distance takes second place in standing, and can use 6 large-power light-emitting diodes at most; The signal indicator range of a signal is nearest, can use 3 large-power light-emitting diodes at most.The signal indicator of other type can determine the use amount of large-power light-emitting diodes as required.

Description of drawings

In conjunction with the accompanying drawings and embodiments the utility model is further specified.

Accompanying drawing is examples of implementation of the present utility model.

Fig. 1 is that railway signaling great power LED signal aspect and indication power control system constitutes block scheme.

Fig. 2 is a railway signaling great power LED signal aspect and indication power control electrical schematic diagram.

Fig. 3 is the LED indicator panel scheme drawing of railway signaling great power LED signal aspect and indication power control.

The specific embodiment

Constitute in the block scheme example in system shown in Figure 1, railway signaling great power LED signal aspect and indication power control Circuits System is formed by automatic guidance condition circuit (1), power circuit (2), current stabilization control circuit (3), fault sound equipment alarm control circuit (4), position of fault indication control circuit (5), transmission cable passage (6), fault alarm current-limiting circuit (7), sound and light alarm executive circuit (8), the electrical coupling of LED indicator panel (9) order.

In embodiment illustrated in fig. 2, power circuit (2) by a BX-34 type signal transformer (201) and a lightning protection make up (202,203,204), the combination of currents match (205,206,207,208,209), a compound type rectifier (210), a high capacity electrolytic condenser (215), a power control relay (216), a flywheel diode (217), two groups of power control relay contacts (218,219), a power indicating circuit (220,221), order is electrically connected and forms.The specification of currents match electric capacity (205,206) is the 50V470 microfarad, the specification of rectifier diode (207,208) is 10A1000V, the specification of current-limiting resistance (209) is 5.1 ohm of 16W, the specification of lightning protection pizo-resistance (202) is 68V5KA, the model of lightning protection discharge bulb (203) is 3R90T, the grounding resistance of lightning protection ground wire (204) is less than 4 ohm, the specification of filter capacitor (215) is 50 volt of 1000 microfarad, power control relay (216) specification is DC12V, and the electric current that passes through of power control relay contact (218,219) is not less than 5A.Compound type rectifier (210) is to take safe redundant fashion to combine by the rectifier bridge module (211,212,213,214) that 4 the reverse withstand voltage 700V of being not less than, rated current are not less than 6A.

7 field keyholed back plates (306 in the current stabilization control circuit (3), 316,326,336,346,356,366) model is V75T, respectively at the light-emitting diode (305 of its source series, 315,325,335,345,355,365) running current is all adjustable in 100～500 milliamperes of scopes, respectively at its series connected signal monitoring relay (308 that drains, 318,328,338,348,358,368) coil resistance is less than 15 ohm, not with 7 flywheel diodes (309 that the signal monitoring relay is in parallel, 319,329,339,349,359,369) model is 1N4007, respectively at its series connected 7 resettable fuses (307 that drain, 317,327,337,347,357,367) minimum starting current is 2 times of loaded work piece electric current, respectively at 7 electric capacity (303 of its grid parallel connection, 313,323,333,343,353,363) specification is 50 volts of 100 microfarads, respectively at 7 overvoltage protecting tubes (304 of its grid parallel connection, 314,324,334,344,354,364) the protection surge voltage is not more than 10V, 7 biasing resistors (301,311,321,331,341,351,361) resistance is 12K ohm, 7 adjustable resistances (302,312,332,342,352,362) the best setting scope is 2.4～5.1K ohm.

Fault sound equipment alarm control circuit (4), position of fault indication control circuit (5) are respectively first group of normal opened contact (401,402,403,404,405,406,407) and second group of normal opened contact (501,502,503,504,505,506,507) of 7 signal monitoring relays.

Connect and buzzer phone (808) specification that is installed in the sound and light alarm executive circuit (8) on the indoor unit block assembly rack of signal machinery is 6～12V0.5～1W by signal cable (6), 7 indicator lamps (801,802,803,804,805,806,807) are the common red light emitting diodes of little power consumption, and the specification of 7 current-limiting resistances (701,702,703,704,705,706,707) is 0.25W1K ohm.

Being positioned at the indoor automatic guidance condition circuit (1) of signal machinery is to be in series with an indoor monitoring relay (103) and a railway signaling automatic guidance condition (104) by two overload protection fuses (101,102) to form.

In example shown in Figure 3,7 large-power light-emitting diodes (305,315,325,335,345,355,365) optimum distribution form on the LED indicator panel (9) is one at center, and it is that 200 millimeters, thickness are on 4 millimeters the aluminium alloy plate that all the other 6 five equilibrium angles with front and back mutual deviation 60 degree are evenly distributed at a diameter.

Preliminary experiment results proves, the utlity model has that electrical characteristics are stable, strong interference immunity, signal display effect satisfy the fast-developing needs of railway security, that fault alarm function improves is reliable, mounting interface and former typing circuit are supporting, with the supporting installation of existing signaling gear, replacing simple procedure, working environment is not limited by China's area sea level elevation and circumstance of temperature difference, every technical index meets the railway ministerial standard, and complete machine is exempted from field maintemance.It is supporting to be suitable for all kinds of signaling at stations equipment rehabilitations of China railways.Its market outlook are more wide.

Claims

1. railway signaling great power LED signal aspect and indication power control main frame profile is that a size is suitable at the inner square body can of installing of various signaling gears, its Circuits System is by automatic guidance condition circuit (1), power circuit (2), current stabilization control circuit (3), fault sound equipment alarm control circuit (4), position of fault indication control circuit (5), transmission cable passage (6), fault alarm current-limiting circuit (7), sound and light alarm executive circuit (8), the electrical coupling of LED indicator panel (9) order forms, and it is characterized in that: the current stabilization control circuit (3) in the side's of being fixed on body can is the field keyholed back plate (306 that has the electric current automatic control characteristic by maximum 7,316,326,336,346,356,366) power amplifier independent of each other that constitutes for core is in parallel and forms.

2. railway signaling great power LED signal aspect and indication power control according to claim 1 is characterized in that: automatic guidance condition circuit (1) is to be in series with an indoor monitoring relay (103) and a railway signaling automatic guidance condition (104) by two overload protection fuses (101,102) to form.

3. railway signaling great power LED signal aspect and indication power control according to claim 1 is characterized in that: power circuit (2) is by a BX-34 type signal transformer (201) and a lightning protection combination (202,203,204), a currents match combination (205,206,207,208,209), a compound type rectifier (210), a high capacity electrolytic condenser (215), a power control relay (216), a flywheel diode (217), two groups of power control relay contacts (218,219), a power indicating circuit (220,221) order is electrically connected and forms.

4. railway signaling great power LED signal aspect and indication power control according to claim 1, it is characterized in that: 7 field keyholed back plates (306 in the current stabilization control circuit (3), 316,326,336,346,356,366) model is V75T, respectively at the light-emitting diode (305 of its source series, 315,325,335,345,355,365) running current is all adjustable in 100～500 milliamperes of scopes, respectively at its series connected signal monitoring relay (308 that drains, 318,328,338,348,358,368) coil resistance is less than 15 ohm, respectively with 7 flywheel diodes (309 that the signal monitoring relay is in parallel, 319,329,339,349,359,369) model is 1N4007, respectively at its series connected 7 resettable fuses (307 that drain, 317,327,337,347,357,367) minimum starting current is 2 times of loaded work piece electric current, respectively at 7 electric capacity (303 of its grid parallel connection, 313,323,333,343,353,363) specification is 50 volts of 100 microfarads, respectively at 7 overvoltage protecting tubes (304 of its grid parallel connection, 314,324,334,344,354,364) the protection surge voltage is not more than 10V, 7 biasing resistors (301,311,321,331,341,351,361) resistance is 12K ohm, 7 adjustable resistances (302,312,332,342,352,362) the best setting scope is 2.4～5.1K ohm.

5. railway signaling great power LED signal aspect and indication power control according to claim 1 is characterized in that: fault sound equipment alarm control circuit (4), position of fault indication control circuit (5) are respectively first group of normal opened contact (401,402,403,404,405,406,407) and second group of normal opened contact (501,502,503,504,505,506,507) of 7 signal monitoring relays.

6. railway signaling machine great power LED signal aspect and indication power control according to claim 1, it is characterized in that: buzzer phone (808) specification in the sound and light alarm executive circuit (8) is 6～12V0.5～1W, 7 indicator lamps (801,802,803,804,805,806,807) are the common red light emitting diodes of little power consumption, and the specification of 7 current-limiting resistances (701,702,703,704,705,706,707) is 0.25W1K ohm.

7. railway signaling machine great power LED signal aspect and indication power control according to claim 1, it is characterized in that: 7 large-power light-emitting diodes (305,315,325,335,345,355,365) the optimum distribution form on LED indicator panel (9) is one at center, and it is that 180～220 millimeters, thickness are on 3～4 millimeters the aluminium alloy plate that all the other 6 five equilibrium angles with front and back mutual deviation 60 degree are evenly distributed at diameter.

8. railway signaling machine great power LED signal aspect and indication power control according to claim 3, it is characterized in that: the currents match electric capacity (205 in the power circuit (2), 206) specification is the 50V470 microfarad, rectifier diode (207,208) specification is 10A1000V, the specification of current-limiting resistance (209) is 5.1 ohm of 16W, the specification of lightning protection pizo-resistance (202) is 68V5KA, the model of lightning protection discharge bulb (203) is 3R90T, the grounding resistance of lightning protection ground wire (204) is less than 4 ohm, the specification of filter capacitor (215) is 50 volt of 1000 microfarad, power control relay (216) specification is DC12V, power control relay contact (218,219) the electric current that passes through is not less than 5A.

9. railway signaling machine great power LED signal aspect and indication power control according to claim 3 is characterized in that: the compound type rectifier (210) in the power circuit (2) is to take safe redundant fashion to combine by the rectifier bridge module (211,212,213,214) that 4 the reverse withstand voltage 700V of being not less than, rated current are not less than 6A.