CN209479437U - Rail vehicle and its power distribution circuit - Google Patents
Rail vehicle and its power distribution circuit Download PDFInfo
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- CN209479437U CN209479437U CN201822192241.7U CN201822192241U CN209479437U CN 209479437 U CN209479437 U CN 209479437U CN 201822192241 U CN201822192241 U CN 201822192241U CN 209479437 U CN209479437 U CN 209479437U
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Abstract
The utility model discloses a kind of rail vehicle and its power distribution circuit, power distribution circuit includes: power supply, and power supply includes workshop power supply, power supply grid and on-vehicle battery；First switch circuit, first switch circuit is extremely connected with the first of workshop power supply respectively, first being extremely connected of power supply grid, on-vehicle battery first are extremely connected；Second switch circuit, second switch circuit are connected with the first-the second input terminal, auxiliary system and the trailer system of power supply grid, on-vehicle battery, first switch circuit respectively, and second switch circuit includes multiple disconnecting switch；Third switching circuit, third switching circuit are connected with first switch circuit and second switch circuit respectively；Controller, controller is connected with third switching circuit and multiple disconnecting switch respectively, to obtain the operating mode of power distribution circuit according to the on off operating mode of disconnecting switch, and third switching circuit is controlled according to operating mode, hereby it is achieved that the flexible switching of auxiliary system and trailer system power supply.
Description
Technical field
The utility model relates to the power distribution circuits and a kind of railcar of distribution technique field more particularly to a kind of rail vehicle
?.
Background technique
The electric traction of rail vehicle (such as subway) and the high-tension distribution box of control system are by main disconnecting switch, high speed open circuit
The composition such as device, charhing unit.As shown in Figure 1, main disconnecting switch MS is used for the isolation of main circuit, and opened by its mechanical interlocking
It closes DS to connect the quick discharging circuit of the support capacitor of trailer system, to guarantee safety；High-speed circuit breaker HSCB is for leading
The error protection of circuit can disconnect HSCB and quickly be protected when catastrophe failure occurs in main circuit.
However, workshop power supply is directly accessed the power supply buses of rail vehicle in scheme of electric power shown in FIG. 1, both give auxiliary
Auxiliary system power supply, and power to trailer system, which does not meet way in industry, and it cannot achieve to vehicle mounted electric
Pond charging.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of power distribution circuit of rail vehicle with a novel purpose, can be realized auxiliary system and trailer system
The flexible switching of power supply, while can avoid workshop power supply and not only powering to trailer system, but also powering to auxiliary system, so that vehicle
Between power supply power supply meet way in industry.
In order to achieve the above objectives, the utility model first aspect proposes a kind of power distribution circuit of rail vehicle, comprising: supplies
Power supply, the power supply include workshop power supply, power supply grid and on-vehicle battery, wherein the first pole of the workshop power supply
It is connected with the auxiliary system of the rail vehicle；First switch circuit, the output end of the first switch circuit and the workshop
The first of power supply is extremely connected, and the first input end of the first switch circuit is extremely connected with the first of the power supply grid, described
Second input terminal of first switch circuit is extremely connected with the first of the on-vehicle battery, wherein the second pole of the workshop power supply,
Second pole of the power supply grid, the second pole of the on-vehicle battery are connected to the trailer system of the rail vehicle, and shape
At first node；Second switch circuit, the second switch circuit respectively with the power supply grid, on-vehicle battery, described
First-the second input terminal of first switch circuit, the auxiliary system are connected with the trailer system, the second switch circuit
Including multiple disconnecting switch；Third switching circuit, the third switching circuit respectively with the first switch circuit and described
Two switching circuits are connected；Controller, the controller are connected with the third switching circuit and the multiple disconnecting switch respectively,
Operating mode of the controller to obtain the power distribution circuit according to the on off operating mode of all disconnecting switch, and according to described
Operating mode controls the third switching circuit, to switch the power supply electricity of the auxiliary system and the trailer system
Source.
The power distribution circuit of rail vehicle according to the present utility model, by controller according to the on-off shape of all disconnecting switch
State obtains the operating mode of power distribution circuit, and is controlled according to operating mode the third switching circuit, realizes auxiliary
The flexible switching of the power supply of system and trailer system, by the setting of first switch circuit can be avoided workshop power supply both to
Trailer system power supply, and power to auxiliary system, so that workshop power supply power supply has met way in industry.
In order to achieve the above objectives, the utility model second aspect proposes a kind of rail vehicle comprising the utility model
The power distribution circuit of above-mentioned rail vehicle.
The power distribution circuit of the utility model is realized auxiliary system and is led using the power distribution circuit of above-mentioned rail vehicle
Draw the flexible switching of the power supply of system, and can be avoided workshop power supply and not only powered to trailer system, but also supplied to auxiliary system
Electricity, so that workshop power supply power supply has met way in industry.
The additional aspect of the utility model and advantage will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the power distribution circuit of rail vehicle in the related technology；
Fig. 2 is the structural block diagram according to the power distribution circuit of the rail vehicle of the utility model one embodiment；
Fig. 3 is the structural schematic diagram according to the power distribution circuit of the rail vehicle of first specific embodiment of the utility model；
Fig. 4 is the structural schematic diagram according to the power distribution circuit of the rail vehicle of second specific embodiment of the utility model；
Fig. 5 is the structural schematic diagram according to the power distribution circuit of the rail vehicle of the utility model third specific embodiment；
Fig. 6 is the structural schematic diagram according to the power distribution circuit of the rail vehicle of the 4th specific embodiment of the utility model；
Fig. 7 is the structural schematic diagram according to the power distribution circuit of the rail vehicle of the 5th specific embodiment of the utility model；
Fig. 8 is the structural block diagram according to the rail vehicle of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to the accompanying drawings the rail vehicle and its power distribution circuit of the utility model embodiment are described.
Fig. 2 is the structural block diagram according to the power distribution circuit of the rail vehicle of the utility model one embodiment.
As shown in Fig. 2, the power distribution circuit 100 of the rail vehicle includes: power supply 10, first switch circuit 20, second
Switching circuit 30, third switching circuit 40 and controller 50.
Referring to fig. 2, power supply 10 includes workshop power supply 11, power supply grid 12 and on-vehicle battery 13, wherein workshop power supply
11 the first pole is connected with the auxiliary system 1 of rail vehicle.The output end of first switch circuit 20 and the first of workshop power supply 11
Extremely it is connected, the first input end of first switch circuit 20 is extremely connected with the first of power supply grid 12, and the of first switch circuit 20
Two input terminals are extremely connected with the first of on-vehicle battery 13, wherein the second pole of workshop power supply 11, power supply grid 12 the second pole,
Second pole of on-vehicle battery 13 is connected to the trailer system 2 of rail vehicle, and forms first node a1.Second switch circuit 30
It is with power supply grid 12, on-vehicle battery 13, the first-the second input terminal of first switch circuit 20, auxiliary system 1 and traction respectively
System 2 is connected, and second switch circuit 30 includes multiple disconnecting switch 31.Third switching circuit 40 respectively with first switch circuit 20 and
Second switch circuit 30 is connected.Controller 50 is connected with third switching circuit 40 and multiple disconnecting switch 31 respectively, controller 50
To obtain the operating mode of power distribution circuit 100 according to the on off operating mode of all disconnecting switch, and according to operating mode to third
Switching circuit 40 is controlled, it is possible thereby to realize the flexible switching of 2 power supply of auxiliary system 1 and trailer system, realizes money
The effective use in source.
Further, as shown in figure 3, first switch circuit 20 includes first diode V1 and the second diode V2.Wherein,
The cathode of first diode V1 is extremely connected with the first of workshop power supply 11, and forms second node a2, the sun of first diode V1
Pole is extremely connected with the first of on-vehicle battery 13, and forms third node a3；The cathode of second diode V2 and second node a2 phase
Even, the anode of the second diode V2 is extremely connected with the first of power supply grid 12, and forms fourth node a4.
Pass through the setting of the first switch circuit as a result, can not only power to auxiliary system to avoid workshop power supply, but also led
Draw system power supply, so that the power supply of workshop power supply meets way in industry.
Referring to Fig. 3, second switch circuit 30 is kept apart including the first disconnecting switch QS1, the second disconnecting switch QS2, third
Close QS3 and the 4th disconnecting switch QS4.Wherein, one end of the first disconnecting switch QS1 is connected with fourth node a4, and first keeps apart
The other end for closing QS1 is connected with the first end of third switching circuit 40；One end of second disconnecting switch QS2 is switched with third respectively
The second end of circuit 40 is connected with third node a3, and the other end of the second disconnecting switch QS2 is connected with trailer system 2；Third every
The one end for leaving pass QS3 is connected with fourth node a4, and the other end of third disconnecting switch QS3 is connected with auxiliary system 1；4th every
The one end for leaving pass QS4 is connected with the third end of third switching circuit 40, the other end and first node of the 4th disconnecting switch QS4
A1 is connected.
It should be noted that the first disconnecting switch QS1, the second disconnecting switch QS2, third disconnecting switch QS3 and the 4th every
Leave and close QS4 and be correspondingly arranged on auxiliary contact, power distribution circuit 100 under different working modes, the on-off of each auxiliary contact
State is different, and controller 50 can judge operating mode by acquiring the low and high level state of each auxiliary contact.
Optionally, the first disconnecting switch QS1 and the 4th disconnecting switch QS4 interlocking, i.e. when the first disconnecting switch QS1 is disconnected,
4th disconnecting switch QS4 closure；When first disconnecting switch QS1 is closed, the 4th disconnecting switch QS4 is disconnected.
Referring to Fig. 3, third switching circuit 40 includes breaker HSCB and charging circuit 41, and charging circuit 41 connects including first
Tentaculum KM1, second contactor KM2 and first resistor R1.Wherein, one end of breaker HSCB and the first disconnecting switch QS1's is another
One end is connected；One end of first contactor KM1 is connected with the other end of breaker HSCB, the other end of first contactor KM1 with
Third node a3 is connected；One end of second contactor KM2 is connected with one end of first contactor KM1, and second contactor KM2's is another
One end is connected with one end of the 4th disconnecting switch QS4；One end of first resistor R1 is connected with third node a3, first resistor R1's
The other end is connected with the other end of second contactor KM2.
In one embodiment of the utility model, as shown in figure 4, the power distribution circuit 100 of rail vehicle can also include
Protect circuit 60, wherein protection circuit 60 includes second resistance R2, third diode V3 and 3rd resistor R3.
Referring to Fig. 3, one end of second resistance R2 is connected with third node a3, the other end and first node of second resistance R2
A1 is connected；The cathode of third diode V3 is connected with third node a3；One end of 3rd resistor R3 and the sun of third diode V3
Extremely it is connected, the other end of 3rd resistor R3 is connected with first node a1.
In one embodiment of the utility model, as shown in figure 5, the power distribution circuit 100 of rail vehicle further includes two-way
DC/DC converter 70.
Referring to Fig. 5, the first input end of two-way DC/DC converter 70 is extremely connected with the first of on-vehicle battery 13, two-way DC/
Second input terminal of DC converter 70 is extremely connected with the second of on-vehicle battery 13, the first output end of two-way DC/DC converter 70
It is connected with third node a3, the second output terminal of two-way DC/DC converter 70 is connected with first node a1.
Optionally, referring to Fig. 3-Fig. 5, auxiliary system 1 includes the second charging circuit, and the second charging circuit includes third contact
Device KM3, the 4th contactor KM4 and the 4th resistance R4.
Wherein, the one end third contactor KM3 is connected with second node a2, the other end of third contactor KM3 and third every
The other end for leaving pass QS3 is connected；One end of 4th contactor KM4 is connected with second node a2；One end of 4th resistance R4 with
The other end of 4th contactor KM4 is connected, and the other end of the 4th resistance R4 is connected with the other end of 3rd resistor R3.
In one embodiment of the utility model, as shown in fig. 6, the power distribution circuit 100 of rail vehicle further includes voltage
One end of detector VH, voltage detector VH are connected with third node a3, the VH other end and first node a1 of voltage detector
It is connected.
In this embodiment, controller 50 is also connected with voltage detector VH and (is not shown in Fig. 6), in power supply
Thus alert when under-voltage is convenient for rapidly carrying out fault location.Meanwhile controller 50 can also be owed in power supply
When pressure, third control circuit 40 is controlled, to prevent the under-voltage damage for leading to inverter in trailer system.
Optionally, referring to Fig. 3-Fig. 7, the power distribution circuit 100 of rail vehicle can also include current detector LH, to examine
Survey the electric current of power supply buses.Wherein, controller 50 can also be connected with current detector LH, to be more than in power supply buses electric current
When current threshold, alert.
In one embodiment of the utility model, as shown in fig. 7, the power distribution circuit 100 of rail vehicle further includes workshop
Power supply transfer box 80, the first input end of workshop power supply transfer box 80 are extremely connected with the first of workshop power supply 11, and workshop power supply turns
It connects the second input terminal of box 80 to be extremely connected with the second of workshop power supply 11, the first output end and second of workshop power supply transfer box 80
Node a2 is connected, and the second output terminal of workshop power supply transfer box 80 is connected with first node a1.
Optionally, rail vehicle includes more piece compartment, and each compartment is provided with power distribution circuit 100, auxiliary system 2 and leads
Draw system 1, wherein workshop power supply 11 is supplied to corresponding compartment respectively by the way that the workshop power supply transfer box 80 of each compartment is arranged in
Electricity.Thereby, it is possible to realize the independent electricity consumption of each compartment, the influence of electricity consumption between compartment is avoided.
In the embodiments of the present invention, the operating mode of power distribution circuit 100 includes normal mode, emergency driving mould
Formula, power-off maintenance model, workshop charge mode and workshop hotline maintenance mode.
For ease of understanding, the power distribution circuit of the rail vehicle of the utility model embodiment is described below with reference to Fig. 3-Fig. 7
Working principle:
1) normal mode
Controller 50 gets disconnecting switch QS1 and QS2 and is in off-state for closed state, QS3 and QS4
When, judge that power distribution circuit 100 is in normal mode, at this point, power supply 11 circuit in workshop disconnects, controller 50 controls breaker
HSCB, first contactor KM1 are closed, and rail vehicle takes electricity, 2 normal power supply of trailer system, auxiliary system by power supply grid 12
System takes electricity by V2 or V3.
In this mode, controller 50 can control KM2 to be closed so as to rail vehicle preliminary filling and power on.Rail vehicle powers on
Afterwards, controller 50 receives TCMS (Train Control and Management System, Train Control and management system)
High pressure power on instruction, detection disconnecting switch QS1 and QS2 be in closed state (if disconnecting switch QS1 and QS2 are in disconnection shape
State then feeds back preliminary filling failure), (if < 500V, offering a high price, it is under-voltage to press, feedback by the 12 side voltage value > 500V of power supply grid of 750V
Preliminary filling failure), then second contactor KM2 closure is controlled, breaker HSCB closure is controlled later, detects network voltage in 20S
Absolute value is differed within 50V with the minimum voltage of the inverter of inversion system, and feedback preliminary filling is completed, and first contactor is connected
KM1 disconnects second contactor KM2；More than 20S feedback preliminary filling failure, second contactor KM2 is disconnected after cut-off breaker HSCB.
2) emergency driving mode
Controller 50 gets disconnecting switch QS3 and QS4 and is in off-state, and QS1 and QS2 are in closed state
When, judge that power distribution circuit 100 is in emergency driving mode, at this point, power supply 11 place circuit in workshop disconnects, the control of controller 50 is disconnected
Road device HSCB, first contactor KM1 are disconnected, and rail vehicle takes electricity from on-vehicle battery 13 by two-way DC/DC converter 70, are drawn
2 normal power supply of system, auxiliary system 1 take electricity by V2.
3) maintenance model is powered off
Controller 50 gets disconnecting switch QS1 and QS3 and is in an off state, and QS2 and QS4 in the closure state, sentence
Disconnected power distribution circuit 100 is in power-off maintenance model, at this point, power supply 11 place circuit in workshop disconnects, controller 50 controls breaker
HSCB, first contactor KM1 are disconnected, and the traction circuit of trailer system 2 is supported by first resistor R1 and second resistance R2
Capacitor is quickly released.Wherein, the Support Capacitor is connected in the traction circuit of trailer system 2.
4) workshop charge mode
Controller 50 gets disconnecting switch QS1 and QS3 and is in closed state to be sentenced when QS2 and QS4 are in an off state
Disconnected power distribution circuit 100 is in workshop charge mode, at this point, rail vehicle is taken by workshop power supply transfer box 80 from workshop power supply 11
Electricity, controller 50 control breaker HSCB, first contactor KM1 and disconnect, and traction circuit inverter disconnects, and on-vehicle battery 13 passes through
The charging circuit of auxiliary system 1 carries out preliminary filling.Other compartments can be powered by through track, and each compartment has isolation
Switch QS1-QS4, power supply and other section compartments are independent.
5) workshop hotline maintenance mode
Controller 50 gets disconnecting switch QS1, QS2 and QS3 and is in an off state, and QS4 in the closure state, judges
Power distribution circuit 100 is in workshop hotline maintenance mode, at this point, rail vehicle passes through workshop power supply transfer box 80 from workshop power supply 11
Electricity is taken, controller 50 controls breaker HSCB, first contactor KM1 and disconnects, and only auxiliary system 1 obtains electric, other compartments can lead to
It crosses workshop power supply transfer box 80 and flexibly takes electricity.
In conclusion the power distribution circuit of the rail vehicle of the utility model embodiment, the power supply mode of rail vehicle is flexible,
And can be realized each compartment for electrically independent, the interference of electricity consumption between compartment is avoided, while making full use of for resource may be implemented,
In addition, it is thus also avoided that workshop power supply was not only powered to auxiliary system, but also was powered to trailer system, so that the power supply of workshop power supply meets
Way in industry.
Fig. 8 is the structural block diagram according to the rail vehicle of the utility model embodiment.
As shown in figure 8, the rail vehicle 1000 includes the power distribution circuit of the rail vehicle of the utility model above-described embodiment
100。
The rail vehicle of the utility model embodiment, using the power distribution circuit of above-described embodiment, so that the confession of rail vehicle
Electric mode is flexible, and can be realized each compartment for electrically independent, avoids the interference of electricity consumption between compartment, while resource may be implemented
Make full use of, in addition, it is thus also avoided that workshop power supply not only given auxiliary system power supply, but also give trailer system power supply so that workshop is electric
The power supply in source meets way in industry.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (13)
1. a kind of power distribution circuit of rail vehicle characterized by comprising
Power supply, the power supply include workshop power supply, power supply grid and on-vehicle battery, wherein the workshop power supply
First pole is connected with the auxiliary system of the rail vehicle；
First switch circuit, the output end of the first switch circuit are extremely connected with the first of the workshop power supply, and described first
The first input end of switching circuit is extremely connected with the first of the power supply grid, the second input terminal of the first switch circuit with
The first of the on-vehicle battery is extremely connected, wherein the second pole of the workshop power supply, the power supply grid the second pole, described
Second pole of on-vehicle battery is connected to the trailer system of the rail vehicle, and forms first node；
Second switch circuit, the second switch circuit respectively with the power supply grid, the on-vehicle battery, the first switch
First-the second input terminal of circuit, the auxiliary system are connected with the trailer system, and the second switch circuit includes multiple
Disconnecting switch；
Third switching circuit, the third switching circuit respectively with the first switch circuit and the second switch circuit phase
Even；
Controller, the controller are connected with the third switching circuit and the multiple disconnecting switch respectively, the controller
It is right to obtain the operating mode of the power distribution circuit according to the on off operating mode of all disconnecting switch, and according to the operation mode
The third switching circuit is controlled, to switch the power supply of the auxiliary system and the trailer system.
2. the power distribution circuit of rail vehicle as described in claim 1, which is characterized in that further include:
Workshop power supply transfer box, the first input end of the workshop power supply transfer box are extremely connected with the first of the workshop power supply,
Second input terminal of the workshop power supply transfer box is extremely connected with the second of the workshop power supply, the workshop power supply transfer box
First output end is connected with the output end of the first switch circuit, the second output terminal of the workshop power supply transfer box with it is described
First node is connected.
3. the power distribution circuit of rail vehicle as claimed in claim 2, which is characterized in that the rail vehicle includes more piece vehicle
Compartment, each compartment are provided with the power distribution circuit, the auxiliary system and the trailer system, wherein the workshop power supply
Workshop power supply transfer box by the way that each compartment is arranged in is powered to corresponding compartment respectively.
4. the power distribution circuit of rail vehicle as claimed in any one of claims 1-3, which is characterized in that the first switch electricity
Road includes:
First diode, the cathode of the first diode is extremely connected with the first of the workshop power supply, and forms second node,
The anode of the first diode is extremely connected with the first of the on-vehicle battery, and forms third node；
The cathode of second diode, second diode is connected with the second node, the anode of second diode with
The first of the power supply grid is extremely connected, and forms fourth node.
5. the power distribution circuit of rail vehicle as claimed in claim 4, which is characterized in that the second switch circuit includes:
One end of first disconnecting switch, first disconnecting switch is connected with the fourth node, first disconnecting switch
The other end is connected with the first end of the third switching circuit；
Second disconnecting switch, one end of second disconnecting switch respectively with the second end of the third switching circuit and described
Three nodes are connected, and the other end of second disconnecting switch is connected with the trailer system；
One end of third disconnecting switch, the third disconnecting switch is connected with the fourth node, the third disconnecting switch
The other end is connected with the auxiliary system；
One end of 4th disconnecting switch, the 4th disconnecting switch is connected with the third end of the third switching circuit, and described
The other end of four disconnecting switch is connected with the first node.
6. the power distribution circuit of rail vehicle as claimed in claim 5, which is characterized in that first disconnecting switch and described the
The interlocking of four disconnecting switch.
7. the power distribution circuit of rail vehicle as claimed in claim 5, which is characterized in that the third switching circuit includes:
Breaker, one end of the breaker are connected with the other end of first disconnecting switch；
Charging circuit, the charging circuit include first contactor, second contactor and first resistor, wherein
One end of the first contactor is connected with the other end of the breaker, the other end of the first contactor with it is described
Third node is connected；
One end of the second contactor is connected with one end of the first contactor, the other end of the second contactor and institute
The one end for stating the 4th disconnecting switch is connected；
One end of the first resistor is connected with the third node, the other end of the first resistor and the second contactor
The other end be connected.
8. the power distribution circuit of rail vehicle as claimed in claim 5, which is characterized in that further include protection circuit, wherein described
Protection circuit include:
Second resistance, one end of the second resistance are connected with the third node, the other end of the second resistance with it is described
First node is connected；
Third diode, the cathode of the third diode are connected with the third node；
3rd resistor, one end of the 3rd resistor are connected with the anode of the third diode, the 3rd resistor it is another
End is connected with the first node.
9. the power distribution circuit of rail vehicle as claimed in claim 4, which is characterized in that further include:
Two-way DC/DC converter, the first pole phase of the first input end and the on-vehicle battery of the two-way DC/DC converter
Even, the second input terminal of the two-way DC/DC converter is extremely connected with the second of the on-vehicle battery, and the two-way DC/DC becomes
First output end of parallel operation is connected with the third node, the second output terminal and described first of the two-way DC/DC converter
Node is connected.
10. the power distribution circuit of rail vehicle as claimed in claim 8, which is characterized in that the auxiliary system is filled including second
Circuit, wherein second charging circuit includes:
Third contactor, third contactor one end are connected with the second node, the other end of the third contactor with
The other end of the third disconnecting switch is connected；
One end of 4th contactor, the 4th contactor is connected with the second node；
One end of 4th resistance, the 4th resistance is connected with the other end of the 4th contactor, the 4th resistance it is another
One end is connected with the other end of the 3rd resistor.
11. the power distribution circuit of rail vehicle as claimed in claim 4, which is characterized in that further include:
Voltage detector, one end of the voltage detector are connected with the third node, the other end of the voltage detector
It is connected with the first node；
Wherein, the controller is also connected with the voltage detector, to issue alarm signal when the trailer system is under-voltage
Breath.
12. the power distribution circuit of rail vehicle as described in claim 1, which is characterized in that the operating mode of the power distribution circuit
Including normal mode, emergency driving mode, power-off maintenance model, workshop charge mode and workshop hotline maintenance mode.
13. a kind of rail vehicle, which is characterized in that the distribution including rail vehicle such as of any of claims 1-12
Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822192241.7U CN209479437U (en) | 2018-12-25 | 2018-12-25 | Rail vehicle and its power distribution circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822192241.7U CN209479437U (en) | 2018-12-25 | 2018-12-25 | Rail vehicle and its power distribution circuit |
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| CN209479437U true CN209479437U (en) | 2019-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665361A (en) * | 2020-04-30 | 2021-11-19 | 比亚迪股份有限公司 | Vehicle high-voltage power supply system, control method thereof and vehicle |
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2018
- 2018-12-25 CN CN201822192241.7U patent/CN209479437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665361A (en) * | 2020-04-30 | 2021-11-19 | 比亚迪股份有限公司 | Vehicle high-voltage power supply system, control method thereof and vehicle |
| CN113665361B (en) * | 2020-04-30 | 2023-05-09 | 比亚迪股份有限公司 | Vehicle high-voltage power supply system, control method thereof and vehicle |
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