CN210781477U - Illumination control circuit for metro vehicle - Google Patents
Illumination control circuit for metro vehicle Download PDFInfo
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- CN210781477U CN210781477U CN201922000423.4U CN201922000423U CN210781477U CN 210781477 U CN210781477 U CN 210781477U CN 201922000423 U CN201922000423 U CN 201922000423U CN 210781477 U CN210781477 U CN 210781477U
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Abstract
The utility model discloses a lighting control circuit for a metro vehicle, wherein the lighting control circuit structures of a locomotive and a cab at the tail of the vehicle are consistent, and the lighting control circuit structures comprise a circuit breaker, a control switch, a first relay, a second relay, a first diode and a second diode; the control switch is provided with a first contact and a second contact which are both normally open contacts; the embodiment adds a normally closed contact which is a normally closed contact of the RIOM equipment on a lighting switching line in the existing lighting control circuit. The utility model provides a under the emergency lighting condition, staff's maloperation leads to the unable problem of normally opening lighting switch, and the reliability is higher.
Description
Technical Field
The utility model belongs to the track traffic field especially relates to a railcar lighting control circuit.
Background
The basic logic of the passenger room illumination control loop of the current subway vehicle is as follows: the driver can control the normal lighting of the passenger room to be turned on and off by operating the passenger room lighting switch at any end of the drivers' cabs at two ends, and under the condition of emergency lighting, the driver cannot turn on the passenger room lighting again in the single-end cab if the driver carelessly turns off the passenger room lighting.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is that: to driver maloperation back under emergency lighting condition among the prior art, can't reopen the problem of guest room illumination in single-ended driver's cabin, the utility model provides a subway vehicle lighting control circuit.
The technical scheme of the utility model: the utility model provides a lighting control circuit for a metro vehicle, wherein the lighting control circuit structures of a locomotive and a cab at the tail of the vehicle are consistent, and the lighting control circuit structures comprise a circuit breaker, a control switch, a first relay, a second relay, a first diode, a second diode, a first cable and a second cable; the control switch is provided with a first contact and a second contact, the first contact is an off contact of the control switch, the second contact is an on contact of the control switch, and the first contact and the second contact are both normally open contacts;
the input end of the circuit breaker is connected with a DC110V + train power supply, the output end of the circuit breaker is connected with one end of a first contact of the control switch, and the other end of the first contact of the control switch is connected with the anode of the first diode; one end of the normally closed contact of the second relay is connected with the output end of the circuit breaker, the other end of the normally closed contact of the second relay is connected with one end of the normally open contact of the first relay, and the other end of the normally open contact of the first relay is connected with the anode of the first diode; one end of a second contact of the control switch is connected with the output end of the circuit breaker, and the other end of the second contact of the control switch is connected with the anode of the second diode; one end of the normally open contact of the second relay is connected with the output end of the breaker, and the other end of the normally open contact of the second relay is connected with one end of the normally closed contact of the first relay; the other end of the normally closed contact of the first relay is connected with the anode of the second diode; the cathodes of the first diode and the second diode are respectively connected with one end of the first relay coil and one end of the second relay coil, and the other ends of the first relay coil and the second relay coil are both connected with a DC110V power supply;
one end of the first normally closed contact of the RIOM equipment in the cab at the head of the vehicle is connected with one end of the first normally closed contact of the RIOM equipment in the cab at the tail of the vehicle by a cable, and the cable is a cable for lighting the train; the other ends of the first normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the second diodes in the head cab and the tail cab through cables; one end of a second normally closed contact of the RIOM equipment in the cab of the vehicle head is connected with one end of a second normally closed contact of the RIOM equipment in the cab of the vehicle tail by a cable, and the cable is a cable of the lighting switch train; the other ends of the second normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the first diodes in the head cab and the tail cab through cables.
Further, the device also comprises a dimmer; each passenger compartment has 1 dimmer, and each dimmer is connected with the lighting train-on cable and the lighting train-off cable.
Further, the illumination state of the passenger compartment carriage is divided into four states, and when the level of an illumination train opening line is 1, and the level of an illumination train closing line is 0, the passenger compartment carriage is in a normal illumination state; when the level of the illumination train opening line is 0 and the level of the illumination train closing line is 0, the emergency illumination state is realized; when the level of the illumination train opening line is 0 and the level of the illumination train closing line is 1, the illumination train opening line is in an illumination closing state; when the level of the illumination train opening line is 1, and the level of the illumination train closing line is 1, the illumination control circuit fails.
Furthermore, the first relay and the second relay are instantaneous relays.
Further, the circuit breaker is a direct current miniature circuit breaker.
Has the advantages that:
(1) the utility model discloses the maloperation to personnel has protected, has avoided in the circuit design in the past, can't open at single-end after the emergency lighting that leads to because of the maloperation closes, influences the condition of operation and maintenance efficiency.
(2) The mode of passenger room illumination is controlled through the high and low levels of the first contact and the second contact of the two RIOM, the control logic is more perfect and reliable, and the illumination state inconsistency caused by the wrong output of the train line state is avoided.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention;
fig. 2 is a conventional lighting control circuit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the lighting control circuit for a metro vehicle provided in this embodiment has a consistent structure of the lighting control circuits for the drivers' cabs at the head and the tail of the vehicle, and each of the lighting control circuits includes a circuit breaker, a control switch, a first relay, a second relay, a first diode, a second diode, a first cable and a second cable; the control switch is provided with a first contact and a second contact, the first contact is an off contact of the control switch, the second contact is an on contact of the control switch, and the first contact and the second contact are both normally open contacts;
the input end of the circuit breaker NLCB is connected with a DC110V + train power supply, the output end of the circuit breaker NLCB is connected with one end of a first contact PLCS1 of a control switch PLCS, and the other end of the first contact of the control switch PLCS is connected with the anode of a first diode D1902; one end of a normally closed contact NLOR1 of the second relay NLOR is connected with the output end of an NLCB of the circuit breaker, the other end of the normally closed contact NLOR1 of the second relay NLOR is connected with one end of a normally open contact NLCR1 of the first relay NLCR, and the other end of the normally open contact NLCR1 of the first relay is connected with the anode of a first diode D1902; one end of a second contact PLCS2 of the control switch is connected with the output end of the breaker, and the other end is connected with the anode of a second diode D1901; one end of a normally open contact NLOR2 of the second relay is connected with the output end of the circuit breaker, and the other end of the normally open contact NLOR2 of the second relay is connected with one end of a normally closed contact NLCR2 of the first relay; the other end of the NLCR2 is connected with the anode of a second diode D1901; the cathodes of the first and second diodes are connected to one ends of the first and second relay (NLCR, NLOR) coils, respectively, and the other ends of the first and second relay coils are connected to a DC110V power supply.
One end of a first normally closed contact LO _ ACHF1 of RIOM equipment in the cab at the head part is connected with one end of a first normally closed contact of the RIOM equipment in the cab at the tail part by a cable, and the cable is a lighting train opening cable; the other ends of the first normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the second diodes in the head cab and the tail cab through cables; one end of a second normally closed contact LO _ ACHF2 of the RIOM equipment in the cab at the head part is connected with one end of a second normally closed contact of the RIOM equipment in the cab at the tail part by a cable, and the cable is a cable for lighting off the train; the other ends of the second normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the first diodes in the head cab and the tail cab through cables.
Also includes a dimmer; each passenger compartment has 1 dimmer, and each dimmer is connected with the lighting train-on cable and the lighting train-off cable.
The utility model provides a first, two relays are transient type relay, and this kind of relay reliability is high. The circuit breaker is a direct current miniature circuit breaker.
The current passenger room lighting control circuit of a subway vehicle is shown in figure 2. The driver operates the control switch PLCS of any one driver cab to an ON position, then the second contact of the switch is closed, the normal lighting ON relay, namely the second relay NLOR, is electrified, the normally open contact NLOR2 is closed, meanwhile, the normally closed contact NLOR is opened, the power supply of the normal lighting off relay NLCR is cut off, the normally closed contact NLCR is deenergized and closed, the lighting train opening line is electrified, the lighting train closing line is deenergized, and the passenger room lighting is turned ON. When the emergency power supply condition occurs, the LO _ ACHF1 and LO _ ACHF2 contacts of RIOM equipment of the head cab and the tail cab are disconnected, the lighting train line is powered off, and the lighting train line is powered off, so that the emergency lighting mode is entered. After the passenger room illumination enters an emergency illumination mode, if the control switch PLCS is operated to an OFF position due to misoperation, a first contact of the switch is closed, first relays NLCR at two ends (a head and a tail) are electrified and self-maintained, and illumination is turned OFF. At this time, if the lighting is to be turned ON, after the control switch PLCS at either end is operated to the ON position, the NLOR of the cab at the home end is powered ON and self-retained, but because the lighting train-ON line is cut off by the LO _ ACHF contact, the NLOR of the cab at the far end is still powered off, so that the NLCR at the far end is still powered ON, and at this time, the lighting train-off line is powered ON, and the lighting train-ON line is powered off, so that the passenger room lighting is in a lighting off state and cannot be turned ON. And the judgment condition for controlling the passenger room illumination to enter various modes is single, if the output of any train line state is wrong, no corresponding error-proofing treatment is carried out, and the condition that the illumination state is inconsistent with the expectation can occur.
This embodiment adds a set of LO _ ACHF2 normally closed contacts. When the passenger room illumination enters the emergency illumination mode, if the control switch is operated to the OFF position due to misoperation, at the moment, because the normally closed contact of the LO _ ACHF2 is opened, the illumination train line cannot be powered on, and therefore the illumination cannot be accidentally turned OFF. Meanwhile, in order to prevent the false output of the contacts of the LO _ ACHF1 and the LO _ ACHF2, the states of the illumination on and off train lines are coded and input to the dimming controller, the coding content is shown in the table 1, and a mistake-proofing mechanism is added.
TABLE 1
| Lighting state of passenger room | Lighting train line state | Lighting off train line status |
| Normal illumination | 1 | 0 |
| Emergency lighting | 0 | 0 |
| Lighting switch | 0 | 1 |
| Fault of | 1 | 1 |
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (5)
1. A lighting control circuit for a metro vehicle is characterized in that the structures of the lighting control circuits of a cab at the head and the tail of the metro vehicle are consistent, and the lighting control circuits comprise a circuit breaker, a control switch, a first relay, a second relay, a first diode and a second diode; the control switch is provided with a first contact and a second contact, the first contact is an off contact of the control switch, the second contact is an on contact of the control switch, and the first contact and the second contact are both normally open contacts;
the input end of the circuit breaker is connected with a DC110V + train power supply, the output end of the circuit breaker is connected with one end of a first contact of the control switch, and the other end of the first contact of the control switch is connected with the anode of the first diode; one end of the normally closed contact of the second relay is connected with the output end of the circuit breaker, the other end of the normally closed contact of the second relay is connected with one end of the normally open contact of the first relay, and the other end of the normally open contact of the first relay is connected with the anode of the first diode; one end of a second contact of the control switch is connected with the output end of the circuit breaker, and the other end of the second contact of the control switch is connected with the anode of the second diode; one end of the normally open contact of the second relay is connected with the output end of the breaker, and the other end of the normally open contact of the second relay is connected with one end of the normally closed contact of the first relay; the other end of the normally closed contact of the first relay is connected with the anode of the second diode; the cathodes of the first diode and the second diode are respectively connected with one end of the first relay coil and one end of the second relay coil, and the other ends of the first relay coil and the second relay coil are both connected with a DC110V power supply;
one end of the first normally closed contact of the RIOM equipment in the cab at the head of the vehicle is connected with one end of the first normally closed contact of the RIOM equipment in the cab at the tail of the vehicle by a cable, and the cable is a cable for lighting the train; the other ends of the first normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the second diodes in the head cab and the tail cab through cables; one end of a second normally closed contact of the RIOM equipment in the cab of the vehicle head is connected with one end of a second normally closed contact of the RIOM equipment in the cab of the vehicle tail by a cable, and the cable is a cable of the lighting switch train; the other ends of the second normally closed contacts of the RIOM equipment in the head cab and the tail cab are connected with the cathodes of the first diodes in the head cab and the tail cab through cables.
2. The lighting control circuit for a subway vehicle as claimed in claim 1, further comprising a dimmer; each passenger compartment has 1 dimmer, and each dimmer is connected with the lighting train-on cable and the lighting train-off cable.
3. The lighting control circuit for subway vehicles as claimed in claim 1, wherein the lighting state of the passenger compartment is divided into four states, when the lighting train-on line level is 1 and the lighting train-off line level is 0, the lighting control circuit is in a normal lighting state; when the level of the illumination train opening line is 0 and the level of the illumination train closing line is 0, the emergency illumination state is realized; when the level of the illumination train opening line is 0 and the level of the illumination train closing line is 1, the illumination train opening line is in an illumination closing state; when the level of the illumination train opening line is 1, and the level of the illumination train closing line is 1, the illumination control circuit fails.
4. The lighting control circuit for a metro vehicle according to claim 1, wherein the first and second relays are snap type relays.
5. A metro vehicle lighting control circuit according to claim 1, wherein the circuit breaker is a dc micro circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000423.4U CN210781477U (en) | 2019-11-19 | 2019-11-19 | Illumination control circuit for metro vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000423.4U CN210781477U (en) | 2019-11-19 | 2019-11-19 | Illumination control circuit for metro vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN210781477U true CN210781477U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922000423.4U Active CN210781477U (en) | 2019-11-19 | 2019-11-19 | Illumination control circuit for metro vehicle |
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| Country | Link |
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| CN (1) | CN210781477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810647A (en) * | 2021-01-06 | 2021-05-18 | 中车唐山机车车辆有限公司 | Motor train unit and illumination control system and method thereof |
| CN113859289A (en) * | 2021-11-03 | 2021-12-31 | 中车南京浦镇车辆有限公司 | Multi-element control circuit of cab lamp of unmanned rail transit vehicle |
-
2019
- 2019-11-19 CN CN201922000423.4U patent/CN210781477U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810647A (en) * | 2021-01-06 | 2021-05-18 | 中车唐山机车车辆有限公司 | Motor train unit and illumination control system and method thereof |
| CN112810647B (en) * | 2021-01-06 | 2022-07-22 | 中车唐山机车车辆有限公司 | Motor train unit and illumination control system and method thereof |
| CN113859289A (en) * | 2021-11-03 | 2021-12-31 | 中车南京浦镇车辆有限公司 | Multi-element control circuit of cab lamp of unmanned rail transit vehicle |
| CN113859289B (en) * | 2021-11-03 | 2024-02-27 | 中车南京浦镇车辆有限公司 | Multi-element control circuit of unmanned rail transit vehicle cab lamp |
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