CN206336295U - It is a kind of 2 to take 2 dynamic security drive modules for railway signal - Google Patents
It is a kind of 2 to take 2 dynamic security drive modules for railway signal Download PDFInfo
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- CN206336295U CN206336295U CN201720011135.7U CN201720011135U CN206336295U CN 206336295 U CN206336295 U CN 206336295U CN 201720011135 U CN201720011135 U CN 201720011135U CN 206336295 U CN206336295 U CN 206336295U
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- switching power
- power source
- photoelectrical coupler
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Abstract
For railway signal 22 dynamic security drive modules are taken the utility model discloses a kind of, including first order drive module and second level drive module, the first order drive module includes photoelectrical coupler U1, photoelectrical coupler U2, triode Q1, triode Q2 and power supply E；The second level drive module is made up of switching power source chip.This is used for the 2 of railway signal and takes 2 dynamic security drive modules, and the simple low cost of circuit, driving carrying load ability is strong, and output voltage ripple is small, and driving signal frequency is low to facilitate MCU softwares to control；Drive carrying load ability strong, and can adjust automatically；Output signal and control pulse Phototube Coupling；The first order and the second level are all the circuits of fault-safety principle, and any one component failure is all without hazard output signal.
Description
Technical field
The utility model is related to railway safety system technical field, specially a kind of 2 to take 2 dynamic peaces for railway signal
Full drive module.
Background technology
The raising of speed per hour and the increasing of rate of traffic flow are run with railroad train, people carry for the security of railway operation
Higher requirement is gone out, improving the security reliability of railway signal system becomes the most important thing, and Block signaling equipment is to ensure
The key of safe railway operation, but be again simultaneously most weak place, the many-side such as interval orbit circuit, operation vehicle, environment
The effect of factor, the phenomenon for occurring " losing branch " " occupying loss " often reduces operational efficiency, threatens traffic safety, interval
Logical check is the important means for improving interval traffic safety, and Interval logic checks that the design of equipment has to comply with failure and is oriented to peace
Full design principle.
In traditional Interval logic inspection system, usually using the safe polar biased relay of JPXC-1000 types, the relay
It is gravity-type fail-safe relay, it only can guarantee that the security of itself execution action, the security of drive signal must be leaned on
Drive module itself ensures.If drive module has potential safety hazard, make safety-type polar biased relay malfunction, may
Cause security incident.Dynamic security drive circuit is present in the Railway Signal Products such as computer interlock system and axis-counting device, pin
Feature can just be picked up to the drive signal for only applying correct polarity of JPXC-1000 relays, the utility model devises one
Plant two and take two fail-safe type drive modules, it disclosure satisfy that railway signal Interval logic checks the security requirement of product.
Utility model content
The purpose of this utility model be provide it is a kind of 2 take 2 dynamic security drive modules for railway signal, using normal
Using will not dangerous output signal, the simple low cost of circuit, driving bringing onto load under 24V driving power supplies, any element failure conditions
Ability is strong, and output voltage ripple is small, and driving signal frequency is low to facilitate MCU softwares to control, and solves the iron in above-mentioned background technology
The safety issue of road signal spacing logical check product.
To achieve the above object, the utility model provides following technical scheme：
It is a kind of 2 to take 2 dynamic security drive modules for railway signal, including first order drive module and second level driving
Module, the first order drive module includes photoelectrical coupler U1, photoelectrical coupler U2, triode Q1, triode Q2 and power supply
Power supply E；The second level drive module is made up of switching power source chip；
The colelctor electrode connecting triode Q1 of triode base stage in the photoelectrical coupler U1；Triode Q1 base series
Resistance R2 is connected to triode Q1 emitter stage, and triode Q1 emitter stage also series resistance R1 is connected on 24V power supply；It is described
The emitter stage series resistance R3 of triode is connected to the colelctor electrode of triode in photoelectrical coupler U2, photoelectricity coupling in photoelectrical coupler U1
The emitter stage of triode connects three poles in the colelctor electrode connecting triode Q2 of triode base stage, photoelectrical coupler U2 in clutch U2
Pipe Q2 colelctor electrode and ground connection；The colelctor electrode of the triode Q1 is connected to triode Q2 emitter stage, in photoelectrical coupler U1
The emitter stage of middle triode and triode Q1 collector series connection are in electricity in parallel on electrochemical capacitor C1 positive pole, electrochemical capacitor C1
Hold C2, electrochemical capacitor C1 negative pole connection diode D1 negative pole, diode D1 positive pole is connected to power supply E negative pole；
Diode D1 negative pole is also connected with diode D2 positive pole, and diode D2 negative pole is connected to power supply E positive pole；It is described to supply
Power supply E positive pole is connected to electrochemical capacitor C3 and electric capacity C4 parallel interface, is gone here and there after electrochemical capacitor C3 and electric capacity C4 parallel connection
Connection resistance R4 and the negative pole for being connected to power supply E；
The VIN ends of the switching power source chip are connected to isolation circuit Q3 pin 5, and the public of switching power source chip terminates to
Isolation circuit Q3 pin 4 is simultaneously grounded；The Voltage Feedback terminating resistor R6 and resistance R5 of switching power source chip one end, resistance R6
The other end ground connection, resistance R6 also shunt capacitance C7；Resistance R5 another terminate to is made up of inductance L1, electric capacity C8 and electric capacity C9
Filter circuit on, filter circuit is also connected with load resistance R7；The SW termination inductance L2 of switching power source chip and the electricity for being connected to 24V
On source and switching power source chip SW terminating diodes D3 positive pole, diode D3 negative pole is connected to the inductance L1 of filter circuit
On.
It is preferred that, the power supply E is powered using conventional 24V driving power supplies.
It is preferred that, the model XL6009E1 of the switching power source chip, switching power source chip is single-chip switching power supply core
Piece, is internally integrated PWM and power MOSFET tube.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, this takes 2 dynamic security drive modules for the 2 of railway signal, and mould is driven by first order drive module and the second level
Block is constituted, and first order drive module controls the conducting and cut-off of 2 triodes by 2 road driving pulses respectively, by electric capacity
Discharge and recharge produce a safe voltage；Second level drive module exports stable driving using XL6009E1 switching power source chips
Voltage, using simple, the simple low cost of circuit, small volume；The low MCU that is easy to of drive pulse signal frequency is believed with software output pulse
Number；
2nd, this takes 2 dynamic security drive modules for the 2 of railway signal, and using conventional 24V driving power supplies, any element is lost
In the case of effect will not dangerous output signal, the simple low cost of circuit, driving carrying load ability is strong, and output voltage ripple is small, drives
Dynamic signal frequency is low to facilitate MCU softwares to control；Drive carrying load ability strong, and can adjust automatically；Output signal and control pulse
Phototube Coupling；The first order and the second level are all the circuits of fault-safety principle, and any one component failure is dangerous all without output
Signal.
Brief description of the drawings
Fig. 1 is first order drive module circuit theory diagrams of the present utility model；
Fig. 2 is switching power source chip circuit theory diagrams of the present utility model；
Fig. 3 is time series pulse signals figure of the present utility model.
In figure：1 first order drive module, 2 second level drive modules, 21 switching power source chips.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-3, it is a kind of 2 to take 2 dynamic security drive modules, including first order drive module for railway signal
1 and second level drive module 2, first order drive module 1 includes photoelectrical coupler U1, photoelectrical coupler U2, triode Q1, three poles
Pipe Q2 and power supply E；Second level drive module 2 is made up of switching power source chip 21；The collection of triode in photoelectrical coupler U1
Electrode connecting triode Q1 base stage；Triode Q1 base series resistor R2 is connected to triode Q1 emitter stage, triode
Q1 emitter stage also series resistance R1 is connected on 24V power supply；The emitter stage series resistance R3 of triode in photoelectrical coupler U1
It is connected to the colelctor electrode connecting triode Q2 of triode in the colelctor electrode of triode in photoelectrical coupler U2, photoelectrical coupler U2 base
The emitter stage connecting triode Q2 of triode colelctor electrode and ground connection in pole, photoelectrical coupler U2；Triode Q1 colelctor electrode connects
Be connected to triode Q2 emitter stage, in photoelectrical coupler U1 the emitter stage of triode and triode Q1 collector series connection in
Shunt capacitance C2 on electrochemical capacitor C1 positive pole, electrochemical capacitor C1, electrochemical capacitor C1 negative pole connection diode D1 negative pole, two
Pole pipe D1 positive pole is connected to power supply E negative pole；Diode D1 negative pole is also connected with diode D2 positive pole, diode D2
Negative pole be connected to power supply E positive pole；Power supply E positive pole is connected to electrochemical capacitor C3 and electric capacity and C4's and coupled
Mouthful, electrochemical capacitor C3 and electric capacity C4 it is in parallel after series resistance R4 and be connected to power supply E negative pole；Power supply E is using normal
24V driving power supplies are powered.
The CPU of first order drive module 1 and second level drive module 2 controls triode according to the time sequential pulse shown in Fig. 3
Q1 and the cut-off of triode Q2 alternate conductions, when triode Q1 conductings, during triode Q2 ends, 24V power supply E passes through electricity
Hinder R1, triode Q1, electric capacity C1, diode D2 to charge to electric capacity C1, when triode Q2 conductings, during triode Q1 ends, electricity
Hold C1 electric discharges, its discharge loop electric capacity C1 anodes-triode Q2-load-diodes D1-electric capacity C1 negative terminals.Electric capacity C1 fills
Loaded during electricity and maintained to power by electric capacity C3, electric capacity C1 is loaded during discharging to be powered by electric capacity C1 and electric capacity C3 is charged.
The VIN ends of switching power source chip 21 are connected to isolation circuit Q3 pin 5, and the public of switching power source chip 21 terminates to
Isolation circuit Q3 pin 4 is simultaneously grounded；The Voltage Feedback terminating resistor R6 and resistance R5 of switching power source chip 21 one end, resistance
R6 other end ground connection, resistance R6 also shunt capacitance C7；The another of resistance R5 is terminated to by inductance L1, electric capacity C8 and electric capacity C9 groups
Into filter circuit on, filter circuit is also connected with load resistance R7；The SW termination inductance L2 of switching power source chip 21 are simultaneously connected to 24V
Power supply on and switching power source chip 21 SW terminating diodes D3 positive pole, diode D3 negative pole is connected to filter circuit
On inductance L1；The model XL6009E1 of switching power source chip 21, switching power source chip 21 is single-chip switching power supply chip, internal
Integrated PWM and power MOSFET tube；The voltage that the power supply of switching power source chip 21 is produced by the first order after isolation by carrying
For switching power source chip 21 is 400K switching frequencies, and 4A switching current abilities, circuit application is simple, and external component is fewer；
In Fig. 2 Vout output voltages can be adjusted by adjusting R5 and R6.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of 2 take 2 dynamic security drive modules for railway signal, including first order drive module (1) and the second level are driven
Dynamic model block (2), it is characterised in that：The first order drive module (1) includes photoelectrical coupler U1, photoelectrical coupler U2, three poles
Pipe Q1, triode Q2 and power supply E；The second level drive module (2) is made up of switching power source chip (21)；
The colelctor electrode connecting triode Q1 of triode base stage in the photoelectrical coupler U1；Triode Q1 base series resistor
R2 is connected to triode Q1 emitter stage, and triode Q1 emitter stage also series resistance R1 is connected on 24V power supply；The photoelectricity
The emitter stage series resistance R3 of triode is connected to the colelctor electrode of triode in photoelectrical coupler U2, photoelectrical coupler in coupler U1
In U2 in the colelctor electrode connecting triode Q2 of triode base stage, photoelectrical coupler U2 triode emitter stage connecting triode Q2
Colelctor electrode and ground connection；The colelctor electrode of the triode Q1 is connected to triode Q2 emitter stage, three in photoelectrical coupler U1
The emitter stage of pole pipe and triode Q1 collector series connection are in shunt capacitance on electrochemical capacitor C1 positive pole, electrochemical capacitor C1
C2, electrochemical capacitor C1 negative pole connection diode D1 negative pole, diode D1 positive pole are connected to power supply E negative pole；Two
Pole pipe D1 negative pole is also connected with diode D2 positive pole, and diode D2 negative pole is connected to power supply E positive pole；The power supply
Power supply E positive pole is connected to electrochemical capacitor C3 and electric capacity C4 parallel interface, is connected after electrochemical capacitor C3 and electric capacity C4 parallel connection
Resistance R4 and the negative pole for being connected to power supply E；
The VIN ends of the switching power source chip (21) are connected to isolation circuit Q3 pin 5, the common port of switching power source chip (21)
It is connected to isolation circuit Q3 pin 4 and is grounded；The one of the Voltage Feedback terminating resistor R6 and resistance R5 of switching power source chip (21)
End, resistance R6 other end ground connection, resistance R6 also shunt capacitance C7；Resistance R5 it is another terminate to by inductance L1, electric capacity C8 and
On the filter circuit of electric capacity C9 compositions, filter circuit is also connected with load resistance R7；The SW termination inductance of switching power source chip (21)
L2 and be connected on 24V power supply and switching power source chip (21) SW terminating diodes D3 positive pole, diode D3 negative pole
It is connected on the inductance L1 of filter circuit.
2. a kind of 22 dynamic security drive modules are taken according to claim 1 for railway signal, it is characterised in that：Institute
Power supply E is stated to power using conventional 24V driving power supplies.
3. a kind of 22 dynamic security drive modules are taken according to claim 1 for railway signal, it is characterised in that：Institute
The model XL6009E1 of switching power source chip (21) is stated, switching power source chip (21) is single-chip switching power supply chip, inside collection
Into PWM and power MOSFET tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011135.7U CN206336295U (en) | 2017-01-05 | 2017-01-05 | It is a kind of 2 to take 2 dynamic security drive modules for railway signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011135.7U CN206336295U (en) | 2017-01-05 | 2017-01-05 | It is a kind of 2 to take 2 dynamic security drive modules for railway signal |
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| Publication Number | Publication Date |
|---|---|
| CN206336295U true CN206336295U (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720011135.7U Active CN206336295U (en) | 2017-01-05 | 2017-01-05 | It is a kind of 2 to take 2 dynamic security drive modules for railway signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320675A (en) * | 2022-10-17 | 2022-11-11 | 北京城建智控科技股份有限公司 | Signal circuit control device for rail transit control |
-
2017
- 2017-01-05 CN CN201720011135.7U patent/CN206336295U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320675A (en) * | 2022-10-17 | 2022-11-11 | 北京城建智控科技股份有限公司 | Signal circuit control device for rail transit control |
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