CN201113546Y - Vehicle mounted control electric network - Google Patents
Vehicle mounted control electric network Download PDFInfo
- Publication number
- CN201113546Y CN201113546Y CNU2007200815900U CN200720081590U CN201113546Y CN 201113546 Y CN201113546 Y CN 201113546Y CN U2007200815900 U CNU2007200815900 U CN U2007200815900U CN 200720081590 U CN200720081590 U CN 200720081590U CN 201113546 Y CN201113546 Y CN 201113546Y
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- China
- Prior art keywords
- electrical network
- electric network
- converter
- vehicle
- monitoring
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Abstract
The utility model discloses a vehicle control electric network, which comprises four sets of independent control electric networks which respectively get power from four main electric networks, and each set of electric network comprises an isolated main electric network, a DC/DC converter which controls the electric network, and a set of storage batteries which are used as backups, wherein, the DC/DC converter transmits a monitor signal to a vehicle electric network controller and simultaneously supplies a 24 volt direct current power source for a DC/DC fan; and a vehicle switch BV24 which is connected to a connection box controls the switching from a 24 volt storage battery output to a 24 volt vehicle electric network. The vehicle control electric network adopts dual redundancy power supply; various sets of control electric networks are mutually independent, and when one set of electric network fails, other electric network systems can not be affected, thereby a safe and reliable control electric network is provided for an urban rail electric network.
Description
Technical field
The utility model relates to a kind of vehicle-mounted control electrical network of high speed municipal rail train.
Background technology
The vehicle-mounted control electrical network is for the municipal rail train control system provides electric energy, the power consumption equipment of having relatively high expectations for relevant current consuming apparatus of the safety of municipal rail train and power supply availability.Power consumption equipment comprises: vehicle-mounted fortune control system, 24V and the ventilation of 440V battery, vehicle diagnostics computer, vehicle operating computer, vehicular radio 440V onboard power system switch-box, car door, fire alarm, navigation system, pneumatic control emergency function (illumination, communication).Because the 24V electrical network mainly is to provide the control power supply for control appliance and parts, so fail safe, reliability to the 24V mains supply have higher requirement, and should guarantee when breaking down, when 24V electrical network and main electrical network were disconnected, the 24V electrical network can also provide at least 1 hour electric energy to emergency lighting and emergency communication.
Existing most control power supply all adopts the method for stand-by power supply to guarantee reliability, but because the Capacity Ratio of stand-by power supply is more limited, disconnect more equipment, wherein a cover electrical network is if any fault, to influence other electrical network, and when wherein small part conversion module damages in the electrical network, also can influence the fail safe and the reliability of the normal operation of a whole set of electrical network.
Summary of the invention:
The purpose of this utility model provides a kind of safe and reliable 24V vehicle-mounted control electrical network.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of vehicle-mounted control electrical network, comprise, the DC/DC converting means, onboard power system switch-box BV24 and storage battery B24, and the distributor VT24 that onboard power system is dispensed to each power consumption equipment, it is characterized in that, it has quadruplet to control electrical network from the independence of four main electrical network power takings respectively, and every suit electrical network has one to isolate the DC/DC converter that connects main electrical network and control electrical network, and as a cover storage battery that backs up, described converter uploads to the onboard power system controller with monitor signal, simultaneously provide 24V DC power supply to the DC/DC blower fan, carry break-make and the Emergency Light that BV24 control 24V storage battery outputs to the 24V onboard power system, the urgent break-make of emergency communication load equipment by the vehicle-mounted switch that is connected the junction box.To protecting to the cable of 24V distributor.
The utlity model has following beneficial effect.
Because each cover control electrical network is separate, wherein a cover electrical network breaks down and can not have influence on other system, for the demanding equipment of electricity consumption, adopts two redundant power supplies.Adopt the DC/DC converter of modularized design that eight power conversion modules are arranged,, thereby improve margin of safety as long as five modules wherein normally just can guarantee the operate as normal of electrical network.Every cover electrical network has improved the fail safe and the reliability of electrical network all as a cover storage battery of backup.Quadruplet is independently controlled electrical network, and wherein a cover electrical network does not influence other electrical network if any fault.
Description of drawings
Fig. 1 is the every cover grid equipment of the utility model block diagram that is mutually related.
Fig. 2 is that the structure of the utility model DC/DC converter module is formed schematic diagram.
Embodiment
Fig. 1 has described the embodiment that a 24V independently controls electrical network, and every joint car is formed the vehicle-mounted control electrical network by quadruplet independent control electrical network shown in Figure 1.Every cover electrical network adopts the IT earthing mode.(the IT earthing mode is a kind of mode of ground connection, the 1st letter is used for defining the earthing mode of distribution system, I represents not connect the earth or links to each other with the earth by high impedance, the earthing mode of the 2nd letter representation power consumption equipment, T represents directly to connect the earth) every cover control electrical network is electrically connected main electrical network by a DC/DC converter, and quadruplet 24V independently controls electrical network respectively from four main electrical network power takings.Have by DC/DC safety between control electrical network and main electrical network and isolate, each DC/DC converter is made up of described eight the separate conversion modules of Fig. 2.DC/DC converter with input overcurrent/over-voltage protecting function connects the junction box; obtain electric energy from main electrical network and convert required control electric energy to; can monitor the asymmetric insulation fault that 24V controls electrical network; and monitor signal uploaded to the onboard power system controller; simultaneously provide 24V DC power supply, can also monitor the DC/DC operating state to the DC/DC blower fan.The DC/DC converter obtains after the electric energy; electric energy is sent to onboard power system switch-box BV24; vehicle-mounted switch carries the break-make that BV24 control 24V storage battery outputs to the 24V onboard power system; also may command 24V storage battery is to emergency function (Emergency Light; emergency communication) break-make of equipment is protected 24V distributor cable.The control electric energy carries BV24 from vehicle-mounted switch and exports onboard power system distributor VT24 to through the junction box.Electrical network distributor VT24 carries out the 24V distribution to power consumption equipment, and the 24V power consumption equipment is carried out circuit overload and short-circuit protection.
Every suit electrical network has cover storage battery incense part power supply, and one connects 24V onboard power system switch-box BV24 and provides the break-make of backup battery for 24V control electrical network, provides electric energy for communication and emergency lighting under emergency condition.24V onboard power system switch-box BV24 connects 24V onboard power system power distribution cabinet VT24 by the junction box, is the power supply of 24V power consumption equipment.Every joint car adopts the separate 24V control network system of 4 covers, every cover electrical network by the DC/DC converter from four main electrical network power takings, onboard power system switch-box BV24 carries out the electric energy of storage battery and DC/DC comprehensively to pass to distributor VT24 again and be dispensed to each power consumption equipment.4 cover electrical networks are powered to current consuming apparatus with the safety redundant fashion.
Among Fig. 2; the DC/DC converter is made up of 8 separate conversion modules, the DC/DC state monitoring module with overcurrent/overvoltage protection monitoring function, ventilation blower monitoring modular and insulating monitoring module interconnects; the DC/DC state monitoring module is responsible for monitoring the operating state of 8 conversion modules; the ventilation blower monitoring modular is responsible for monitoring the ventilation blower operating state of DC/DC converter, and the insulating monitoring module is responsible for monitoring DC/DC converter insulation against ground situation.Each control electrical network is connected with DC/DC converter electric supply installation.Be connected to two independently conversion modules on the main electrical network of every cover.Be connected the main electrical network of 4 covers and be parallel with 8 separate conversion modules, conversion module is delivered to the DC/DC state monitoring module by being connected in series with door.The electric energy of each control electrical network obtains by the DC/DC converter in the normal power supply situation; be connected to 2 independently conversion modules on the main electrical network of every cover; have 8 independent conversion modules and overlap power taking conversion on the main electrical network from 4; separate between each conversion module; parallel way is adopted in output; when wherein the small part module Shi Buhui that breaks down has influence on whole electrical network operate as normal; the operating state of conversion module is delivered to the DC/DC state monitoring module by being connected in series with door; the DC/DC state monitoring module has overcurrent/overvoltage protection monitoring function; whether the ventilation blower of ventilation blower monitoring module monitors DC/DC operate as normal; whether the output of insulating monitoring module monitors control electrical network shorted to earth; whether there is asymmetric insulation fault; the DC/DC state monitoring module; ventilation blower monitoring modular and insulating monitoring module can be uploaded to the status monitoring signal onboard power system controller, thereby judge whether operate as normal of control electrical network.
Claims (5)
1. vehicle-mounted control electrical network, comprise, the DC/DC converting means, onboard power system switch-box BV24 and storage battery B24, and the distributor VT24 that onboard power system is dispensed to each power consumption equipment, it is characterized in that, it has quadruplet to control electrical network from the independence of four main electrical network power takings respectively, and every suit electrical network has one to isolate the DC/DC converter that connects main electrical network and control electrical network, and as a cover storage battery that backs up, described converter uploads to the onboard power system controller with monitor signal, simultaneously provide 24V DC power supply, carry BV24 control 24V storage battery by the vehicle-mounted switch that is connected the junction box and output to the break-make of 24V onboard power system and the urgent break-make of load equipment to the DC/DC blower fan.
2. by the described vehicle-mounted control electrical network of claim 1; it is characterized in that; described DC/DC converter is made up of 8 separate conversion modules, the DC/DC state monitoring module with overcurrent/overvoltage protection monitoring function, ventilation blower monitoring modular and insulating monitoring module interconnects; the DC/DC state monitoring module is responsible for monitoring the operating state of 8 conversion modules; the ventilation blower monitoring modular is responsible for monitoring the ventilation blower operating state of DC/DC converter, and the insulating monitoring module is responsible for monitoring DC/DC converter insulation against ground situation.
3. by the described vehicle-mounted control electrical network of claim 1, it is characterized in that each control electrical network is connected with DC/DC converter electric supply installation.
4. by the described vehicle-mounted control electrical network of claim 1, it is characterized in that, be connected to two independently conversion modules on the main electrical network of every cover.
5. by the described vehicle-mounted control electrical network of claim 1, it is characterized in that be connected the main electrical network of 4 covers and be parallel with 8 separate conversion modules, conversion module is delivered to the DC/DC state monitoring module by being connected in series with door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200815900U CN201113546Y (en) | 2007-10-23 | 2007-10-23 | Vehicle mounted control electric network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200815900U CN201113546Y (en) | 2007-10-23 | 2007-10-23 | Vehicle mounted control electric network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113546Y true CN201113546Y (en) | 2008-09-10 |
Family
ID=39965291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200815900U Expired - Lifetime CN201113546Y (en) | 2007-10-23 | 2007-10-23 | Vehicle mounted control electric network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113546Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071041A (en) * | 2018-10-18 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Vehicle-mounted power supply system |
-
2007
- 2007-10-23 CN CNU2007200815900U patent/CN201113546Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071041A (en) * | 2018-10-18 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Vehicle-mounted power supply system |
| CN111071041B (en) * | 2018-10-18 | 2023-05-23 | 中车株洲电力机车研究所有限公司 | Vehicle-mounted power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |