CN202935387U - Rail transit platform screen door controller power system - Google Patents
Rail transit platform screen door controller power system Download PDFInfo
- Publication number
- CN202935387U CN202935387U CN 201220693176 CN201220693176U CN202935387U CN 202935387 U CN202935387 U CN 202935387U CN 201220693176 CN201220693176 CN 201220693176 CN 201220693176 U CN201220693176 U CN 201220693176U CN 202935387 U CN202935387 U CN 202935387U
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- CN
- China
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- circuit
- output
- screen door
- rail transit
- bidirectional thyristor
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Abstract
The utility model discloses a rail transit platform screen door controller power system which comprises a voltage transformation circuit, a voltage stabilization filtering circuit, a bidirectional thyristor and a voltage reduction circuit, wherein a first output of the voltage transformation circuit is connected with the voltage stabilization filtering circuit through a first rectifying circuit, a second output of the voltage transformation circuit is connected with a second rectifying circuit through the voltage reduction circuit, an output of the second rectifying circuit is connected with the voltage stabilization filtering circuit, an output of the voltage stabilization filtering circuit is connected with a bidirectional thyristor control circuit, an output of the bidirectional thyristor control circuit is connected with one input of the bidirectional thyristor, the other input of the bidirectional thyristor is connected with a third output of the voltage transformation circuit, and an output of the bidirectional thyristor is connected with a platform screen door controller. The rail transit platform screen door controller power system has the advantages of being simple in structure, reasonable in design, convenient to install, and capable of making full use of existing distribution wires, reducing construction difficulty, shortening construction periods, being good in power supply stability, being capable of effectively ensuring normal operation of platform screen doors, and reducing power supply cost of the rail transit platform screen door controller power system.
Description
Technical field
The utility model relates to a kind of screen door in rail transit controller power source system.
Background technology
At present, along with growing with urban rail transit technology of improving constantly of people's quality of the life, a lot of large-and-medium size cities have all been built or have planned and building subway engineering.Shielded gate is the passage that Metro Passenger is normally got on or off the bus, and is the barrier that cuts off platform and track, is also train passenger's fire escape when presence of fire or fault in the tunnel AT STATION.The shielded gate controller is being controlled the normal operation of shielded gate, and shielded gate controller power source system provides power supply for the shielded gate controller, and therefore, shielded gate controller power source system plays a part very important in whole Rail Transit System.Yet the present following problem of shielded gate controller power source system's ubiquity: (1) in case cut off the power supply, and shielded gate can not normal operation, the poor stability of powering; (2) when powering for controller, must again draw a source of AC electric wire to enter switch seat and could realize, increase difficulty and cycle time of construction, and increased the system power supply cost.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of difficulty of construction is low, the cycle is short, power supply cost is low and the screen door in rail transit controller power source system of power supply good stability effective guarantee shielded gate normal operation but provide.
the purpose of this utility model is achieved through the following technical solutions: screen door in rail transit controller power source system, it comprises transforming circuit, filter circuit of pressure-stabilizing, triac and reduction voltage circuit, the input of transforming circuit is connected with power supply, one tunnel output of transforming circuit is connected with one tunnel input of filter circuit of pressure-stabilizing by the first rectifying circuit, the the second tunnel output of transforming circuit is connected with the second rectifying circuit by reduction voltage circuit, the output of the second rectifying circuit is connected with another road input of filter circuit of pressure-stabilizing, the output of filter circuit of pressure-stabilizing is connected with control circuit of bidirectional thyristor, the output of control circuit of bidirectional thyristor is connected with one tunnel input of triac, another road input of triac is connected with the Third Road output of transforming circuit, the output of triac connects the shielded gate controller.
The the second tunnel output of transforming circuit described in the utility model also directly is connected with the shielded gate controller by reduction voltage circuit.
Further, reduction voltage circuit can be any one in transformer pressure-reducing circuit, capacitive reactance formula reduction voltage circuit or resistance-type reduction voltage circuit.
Further, triac can be the optically-coupled triac.
The beneficial effects of the utility model are:
(1) circuit structure is simple, reasonable in design, and is convenient to install;
(2) can take full advantage of existing distribution wire, reduce difficulty of construction, shorten construction period;
(3) power supply good stability, but the normal operation of effective guarantee shielded gate;
(4) reduced the power supply cost of power-supply system.
Description of drawings
Fig. 1 is the utility model structural representation block diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, screen door in rail transit controller power source system, it comprises transforming circuit, filter circuit of pressure-stabilizing, triac and reduction voltage circuit, the input of transforming circuit is connected with power supply, one tunnel output of transforming circuit is connected with one tunnel input of filter circuit of pressure-stabilizing by the first rectifying circuit, the the second tunnel output of transforming circuit is connected with the second rectifying circuit by reduction voltage circuit, the output of the second rectifying circuit is connected with another road input of filter circuit of pressure-stabilizing, and the second tunnel output of transforming circuit also directly is connected with the shielded gate controller by reduction voltage circuit; The output of filter circuit of pressure-stabilizing is connected with control circuit of bidirectional thyristor, the output of control circuit of bidirectional thyristor is connected with one tunnel input of triac, another road input of triac is connected with the Third Road output of transforming circuit, and the output of triac connects the shielded gate controller.
Further, reduction voltage circuit can be selected any one in transformer pressure-reducing circuit, capacitive reactance formula reduction voltage circuit or resistance-type reduction voltage circuit.
As further optimization of the present utility model, triac is optional with light coupling two-way silicon control.
When the shielded gate controller is not worked, provide direct power supply by reduction voltage circuit, the second rectifying circuit and filter circuit of pressure-stabilizing for control circuit of bidirectional thyristor, the electric current of transforming circuit and shielded gate controller of flowing through this moment is very little, and deficiency is so that the shielded gate controller is made any action; After control circuit of bidirectional thyristor is controlled the triac conducting, voltage across two depressors approximates zero, the shielded gate controller is started working, and the large electric current transforming circuit of flowing through makes transforming circuit and the first rectifying circuit provide direct supply to supply control circuit of bidirectional thyristor through filter circuit of pressure-stabilizing.
Claims (4)
1. screen door in rail transit controller power source system, it is characterized in that: it comprises transforming circuit, filter circuit of pressure-stabilizing, triac and reduction voltage circuit, the input of transforming circuit is connected with power supply, one tunnel output of transforming circuit is connected with one tunnel input of filter circuit of pressure-stabilizing by the first rectifying circuit, the the second tunnel output of transforming circuit is connected with the second rectifying circuit by reduction voltage circuit, the output of the second rectifying circuit is connected with another road input of filter circuit of pressure-stabilizing, the output of filter circuit of pressure-stabilizing is connected with control circuit of bidirectional thyristor, the output of control circuit of bidirectional thyristor is connected with one tunnel input of triac, another road input of triac is connected with the Third Road output of transforming circuit, the output of triac connects the shielded gate controller.
2. screen door in rail transit controller power source according to claim 1 system, it is characterized in that: the second tunnel output of described transforming circuit also directly is connected with the shielded gate controller by reduction voltage circuit.
3. screen door in rail transit controller power source according to claim 1 system, it is characterized in that: described reduction voltage circuit is any one in transformer pressure-reducing circuit, capacitive reactance formula reduction voltage circuit or resistance-type reduction voltage circuit.
4. screen door in rail transit controller power source according to claim 1 system, it is characterized in that: described triac is the optically-coupled triac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220693176 CN202935387U (en) | 2012-12-16 | 2012-12-16 | Rail transit platform screen door controller power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220693176 CN202935387U (en) | 2012-12-16 | 2012-12-16 | Rail transit platform screen door controller power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202935387U true CN202935387U (en) | 2013-05-15 |
Family
ID=48319642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220693176 Expired - Fee Related CN202935387U (en) | 2012-12-16 | 2012-12-16 | Rail transit platform screen door controller power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202935387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948959A (en) * | 2020-08-28 | 2020-11-17 | 华科电子股份有限公司 | Electromagnetic valve unlocking circuit of rail transit shield door |
-
2012
- 2012-12-16 CN CN 201220693176 patent/CN202935387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948959A (en) * | 2020-08-28 | 2020-11-17 | 华科电子股份有限公司 | Electromagnetic valve unlocking circuit of rail transit shield door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |