CN215436394U - Electric power storage battery engineering vehicle - Google Patents

Abstract

The embodiment of the application provides a power storage battery machineshop car, includes: a vehicle body; the front cab and the rear cab are respectively arranged at the front end and the rear end of the vehicle body; the front bogie and the rear bogie are arranged below the vehicle body; a current receiving device for receiving power from an external power supply device, provided on the vehicle body; the energy storage device is arranged on the vehicle body; a traction inverter and an auxiliary inverter for obtaining electric energy from a current receiving device or an energy storage device are arranged on a vehicle body. The embodiment of the application provides an electric power storage battery engineering vehicle, has two kinds of power supply modes, can receive the current power supply through external power supply unit, also can supply power by energy storage device in the environment that does not have external power supply unit, can regard as the traction locomotive of multipurpose such as railway rescue, maintenance.

Description

Electric power storage battery engineering vehicle

Technical Field

The application relates to the electric vehicle technology, in particular to an electric storage battery engineering vehicle.

Background

In the initial stage of railway line construction, a large amount of equipment, materials and personnel need to be transported to each construction site by the traction of an engineering truck; before the railway line is put into operation, an engineering truck is required to press the line, inspect a tunnel contact net and pull a vehicle to perform cold slip and hot slip; after the railway line is formally operated, a process truck is required to transport and overhaul vehicles and personnel, carry out emergency rescue and the like. Therefore, each railway line needs to be equipped with a certain number of engineering vehicles. But in the earlier stage of railway line construction, the contact net has not been laid in the construction area yet, and the electric power battery engineering vehicle that the tradition relied on the contact net power supply then can't get into the construction area, can only stop near the construction area, relies on manpower or crude handling tool haulage equipment, and the manpower, material resources and the financial resources that consume are more, and efficiency is relatively poor.

Disclosure of Invention

In order to solve one of the technical defects, the embodiment of the application provides an electric power storage battery engineering vehicle.

According to a first aspect of embodiments of the present application, there is provided an electric power storage battery powered engineering vehicle, including:

a vehicle body;

the front cab and the rear cab are respectively arranged at the front end and the rear end of the vehicle body;

the front bogie and the rear bogie are arranged below the vehicle body;

a current receiving device for receiving power from an external power supply device, provided on the vehicle body;

the energy storage device is arranged on the vehicle body;

a traction inverter and an auxiliary inverter for obtaining electric energy from a current receiving device or an energy storage device are arranged on a vehicle body.

The power storage battery work vehicle as described above, the current receiving device includes: the collector shoe is arranged on the bogie; the end of the collector shoe is used for contacting a collector rail arranged on the ground to collect current.

The power storage battery work vehicle as described above, the current receiving device includes:

the pantograph is used for contacting with a contact network to receive current and is arranged at the top of the vehicle body.

The power storage battery engineering vehicle as described above, the energy storage device includes: a traction battery pack and a control battery pack;

the input end of the traction storage battery pack is electrically connected with the current receiving device, and the output end of the traction storage battery pack is electrically connected with the traction inverter;

the input end of the control storage battery pack is electrically connected with the current receiving device, and the output end of the control storage battery pack is electrically connected with the auxiliary inverter.

The power storage battery engineering vehicle as described above, the energy storage device further includes: a ventilation system, a fire protection system and a storage battery management system;

the ventilation system is arranged at the periphery of the traction storage battery pack;

the fire protection system is arranged on the periphery of the traction storage battery pack; the fire protection system includes: at least one of a temperature sensor, a smoke sensor;

the battery management system includes: the battery management controller, and a temperature sensor, a resistance measurement circuit and an electric quantity detection circuit which are electrically connected with the battery management controller.

The power storage battery engineering vehicle as described above, the energy storage device further includes: a fire suppression system; the fire extinguishing system is arranged on the periphery of the traction storage battery pack;

the fire suppression system includes: a fire extinguishing controller and a fire extinguishing device; the fire extinguishing apparatus includes: the fire extinguishing device comprises a tank body for storing fire extinguishing agents, a spray pipe connected with a nozzle of the tank body and a nozzle connected to the end part of the spray pipe.

According to the electric power storage battery engineering truck, at least one of a high-voltage cabinet, an air compressor, an alternating current power distribution cabinet, a communication cabinet, a tool cabinet and a regenerative braking system is further arranged on the truck body;

the high-voltage cabinet and the air compressor are arranged behind the front cab and are sequentially arranged along the length direction of the vehicle;

the alternating current power distribution cabinet and the communication cabinet are arranged behind the air compressor, are positioned above the traction storage battery pack and are sequentially arranged along the vehicle length direction;

the tool cabinet is arranged above the traction storage battery pack and is positioned behind the communication cabinet;

the regenerative braking system is arranged on the top of the vehicle body and comprises: a brake resistor and a charger; and the charger is respectively connected with the brake resistor and the traction storage battery.

The power storage battery working vehicle as described above, wherein the traction inverter includes: four rectifier sub-modules and four inverter sub-modules; the rectifier submodule is connected between the traction transformer and the inverter submodule;

and one traction motor is used for driving one axle in the bogie to rotate.

According to the power storage battery engineering truck, a traction circuit breaker, a differential current sensor and a line reactor are further arranged between the traction storage battery pack and the traction inverter;

the traction storage battery pack is also connected with a voltage sensor and a current sensor through a change-over switch, and is respectively and electrically connected with a vehicle control system and a traction storage battery capacity detection device to provide voltage and current signals.

The power storage battery work vehicle as described above further includes: a charging circuit; the charging circuit includes: a contactor, a fuse, a capacitor, a voltage sensor, a power semiconductor; the contactor and the fuse are connected in series with the anode of the storage battery; the voltage sensor is connected in parallel between the negative electrode of the storage battery and the fuse; the capacitor is connected with the voltage sensor in parallel; an inductor is connected between the power semiconductors.

According to the electric power storage battery engineering vehicle, the traction storage battery pack comprises at least four groups of storage batteries, and each group of storage batteries is arranged in one storage battery box; the side wall of the storage battery box body is provided with a vent hole; a heat dissipation gap is formed between every two adjacent storage battery box bodies; the bottom of the storage battery box body is provided with a guide rail convenient to move.

The power storage battery work vehicle as described above further includes: at least one of a track detection device, a steel rail flaw detection device, a vehicle traction control unit real-time energy consumption calculation system for counting traction energy consumption and regenerative braking energy consumption, and an obstacle detection system for detecting obstacles; the track detection device and the steel rail flaw detection device are arranged below the vehicle body.

The power storage battery work vehicle as described above further includes: and the emergency power supply system is used for converting the power supply of the storage battery into a three-phase power supply to be supplied to the air compressor, the water cooling system and the brake resistance heat dissipation fan when the auxiliary converter fails.

According to the electric power storage battery engineering vehicle provided by the embodiment of the application, a front cab and a rear cab are respectively arranged at the front end and the rear end of a vehicle body, and a front bogie and a rear bogie are arranged below the vehicle body; the traction inverter and the auxiliary inverter acquire electric energy from the current receiving device or the energy storage device, have two power supply modes, can receive current power through the external power supply device, can also supply power through the energy storage device in the environment without the external power supply device, can be used as a multipurpose traction locomotive for railway rescue, maintenance and the like, can meet the railway power supply system, and is suitable for a direct current-alternating current power supply system.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a front view of an electric storage battery work vehicle provided in an embodiment of the present application;

fig. 2 is a right side view of the electric power storage battery engineering vehicle provided in the embodiment of the present application;

fig. 3 is a top view of an electric storage battery engineering truck provided in an embodiment of the present application;

fig. 4 is a bottom view of the electric storage battery engineering truck provided in the embodiment of the present application;

fig. 5 is a schematic diagram of a power supply system in an electric storage battery engineering vehicle according to an embodiment of the present application;

fig. 6 is a schematic diagram of a general circuit of the electric power storage battery engineering vehicle according to the embodiment of the present application;

fig. 7 is a schematic diagram of a charging circuit of an electric storage battery engineering vehicle according to an embodiment of the present application;

fig. 8 is a schematic diagram of an electric storage battery engineering truck axle-controlled traction inverter provided in an embodiment of the present application.

Reference numerals:

1-a vehicle body; 2-front cab; 3-rear cab; 4-a front bogie; 5-rear bogie; 6-a collector shoe; 7-pantograph; 8-pantograph air compressor; 9-traction battery pack; 10-controlling the battery pack; 11-a high-voltage cabinet; 12-an alternating current power distribution cabinet; 13-a communication cabinet; 14-an air compressor; 15-tool cabinets; 16-a brake resistor; 17-a coupler; 18-a barrier remover; 19-a brake; 20-the front bogie walking control traction inverter; 21-the rear bogie walking control traction inverter; 22-auxiliary inverter; 23-brake reservoir; 24-front cab air conditioning; 25-rear cab air conditioning; 26-a fan; 27-vehicle lamp.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The embodiment of the application provides an electric power storage battery engineering vehicle, which is provided with a current receiving device capable of receiving current from an external power supply device for power supply, and is further provided with an energy storage device capable of supplying power to vehicle equipment under the condition of no external power supply.

Fig. 1 is a front view of an electric power storage battery work vehicle provided in an embodiment of the present application, fig. 2 is a right view of the electric power storage battery work vehicle provided in the embodiment of the present application, fig. 3 is a top view of the electric power storage battery work vehicle provided in the embodiment of the present application, fig. 4 is a bottom view of the electric power storage battery work vehicle provided in the embodiment of the present application, and fig. 5 is a schematic diagram of a power supply system in the electric power storage battery work vehicle provided in the embodiment of the present application. As shown in fig. 1 to 5, the electric power storage battery powered engineering vehicle provided in the present embodiment includes: the vehicle comprises a vehicle body 1, and a front cab 2, a rear cab 3, a front bogie 4, a rear bogie 5, a current receiving device, an energy storage device, a traction converter and an auxiliary converter which are arranged on the vehicle body 1.

Wherein, the front cab 2 and the rear cab 3 are respectively arranged at the front end and the rear end of the vehicle body 1. Preceding cab 2 and back cab 3 all are provided with front window, side window and cab door, and preceding cab 2 all is provided with the driver and controls the platform with 3 inside back cabs.

The front bogie 4 and the rear bogie 5 are arranged below the vehicle body, are respectively positioned at two ends of the vehicle and have a distance with the vehicle end. The front bogie 4 and the rear bogie 5 function to support and drive the vehicle body. Both the front bogie 4 and the rear bogie 5 may be power bogies; or one of the bogies is a power bogie and the other is a non-power bogie.

The current receiving device is provided in the vehicle body 1 and receives power from an external power supply device. In addition, the vehicle body is also provided with a breaker and a transformer, and the breaker is connected between the current receiving device and the transformer. The output end of the transformer is respectively connected with the traction inverter and the auxiliary inverter. The traction inverter and the auxiliary inverter obtain electric energy from the current receiving device or the energy storage device.

The energy storage device is arranged on the vehicle body 1 and used for supplying power to a traction system and an auxiliary system on the vehicle. The energy storage device is also connected to the transformer via a corresponding circuit breaker. The output end of the transformer is respectively connected with the traction inverter and the auxiliary inverter.

The traction system described above includes, in addition to the traction inverter, the following: a traction motor. The traction inverter may include: a rectification circuit, an intermediate direct current bus, a traction converter and the like.

The auxiliary system includes, in addition to the auxiliary inverter: lighting equipment, air conditioning equipment, air supply equipment, braking equipment, communication control equipment and the like. The auxiliary inverter includes: auxiliary converters, etc.

When the external power supply device is provided, the electric storage battery engineering vehicle receives current from the external power supply device through the current receiving device to obtain power and supplies the power to electric equipment such as an inverter; when no external power supply device is available, the electric power storage battery engineering vehicle supplies power to electric equipment such as an inverter through the energy storage device.

In the electric power storage battery engineering truck provided by the embodiment, a front cab and a rear cab are respectively arranged at the front end and the rear end of a truck body, and a front bogie and a rear bogie are arranged below the truck body; the traction inverter and the auxiliary inverter acquire electric energy from the current receiving device or the energy storage device, have two power supply modes, can receive current power through the external power supply device, can also supply power through the energy storage device in the environment without the external power supply device, can be used as a multipurpose traction locomotive for railway rescue, maintenance and the like, can meet the railway power supply system, and is suitable for a direct current-alternating current power supply system.

The engineering vehicle provided by the embodiment can be used for shunting and emergency rescue, and can be integrated with other engineering operation vehicles for operation, so that the engineering vehicle becomes a traction vehicle or a power platform for track maintenance, the application is expanded, and the application value and the market prospect are high.

On the basis of the technical scheme, the current receiving device can be a current receiving shoe 6 and is arranged on a bogie, can be arranged on the front bogie 4 or can be arranged on the rear bogie 5. The end of the collector shoe 6 is used for contacting a collector rail arranged on the ground to collect current. The power supply output end of the collector shoe 6 is connected with the transformer through a breaker. After the vehicle returns to the garage, the power can be received by the power receiving shoe 6 contacting the garage socket.

Alternatively, the current receiving device includes: pantograph 7 and pantograph air compressor 8. The pantograph 7 is arranged at the top of the vehicle body 1 and is used for contacting and receiving current with an erected contact network. The power supply output end of the pantograph 7 is connected with the transformer through a circuit breaker. And the pantograph air compressor 8 is used for controlling the pantograph to lift or fall. When current is required to be collected through a contact net, the pantograph 7 is lifted by the current-collecting air compressor 8 until the current is contacted with the contact net; when power needs to be supplied through the energy storage device, the pantograph 7 is lowered through the pantograph air compressor 8.

Fig. 1 schematically shows that the vehicle body is provided with the collector shoe 6 and the pantograph 7, and actually, only the collector shoe 6 or only the pantograph 7 is provided on the vehicle body.

When the pantograph 7 is adopted for current collection, the pantograph 7 is contacted with a contact net to take power after being lifted, and is connected with one end of a circuit breaker arranged in a vehicle body, the other end of the circuit breaker is connected with the positive end of a traction inverter to be connected with input, the negative end of the traction inverter is connected with the ground through a track, and the output positive end and the output negative end of the traction inverter are correspondingly used as the output positive end and the output negative end of a main circuit for power supply of a touch net.

When the power is received by the power receiving shoe 6, the power receiving shoe 6 is in contact with the contact rail to obtain power, the other end of the power receiving shoe is connected with one end of a circuit breaker installed in the vehicle body, the other end of the circuit breaker is connected with the positive end of a traction inverter to be connected with input, the negative end of the traction inverter is connected with the ground through a rail, and the output positive end and the output negative end of the traction inverter correspond to be used as the output positive end and the output negative end of a touch screen power supply main circuit.

The main power supply circuit of the contact network or the contact rail also comprises a set of lightning arrester, and the lightning arrester is connected with a power supply loop at the rear end of the pantograph or the collector shoe. Fig. 6 is a schematic diagram of a general circuit of the electric power storage battery work vehicle according to the embodiment of the present application. As shown in fig. 6, the main power supply circuit for the overhead line system or the contact rail further includes high voltage sensors TV101, TV102, and TV103, a current sensor TA101, a three-position switch S101, a fuse FU101, a main contactor KM101, and a contactor KM 108. The voltage sensors TV102 and TV103 are connected to the front end of the three-position brake, and the voltage sensor TV101 is connected to the rear end of the three-position brake S101.

One end of the main loop positive pole passes through the fuse FU101, the main contactor KM101, the current transformer TV101 and the high-speed breaker QF102, and is connected with the input positive end of the traction inverter.

When the traction storage battery pack supplies power, the contactor KM101 is switched off, and the contactor KM105 is switched on, so that the traction storage battery supplies power to the traction converter, the auxiliary converter and the emergency inverter.

The energy storage device may be a storage battery pack, and specifically includes: a traction battery pack 9 and a control battery pack 10. Wherein, the capacity of the traction battery pack 9 is larger for supplying power to the traction system. The capacity of the control storage battery pack 10 is smaller than that of the traction storage battery pack 9, and the control storage battery pack is used for supplying power to an auxiliary system of the engineering vehicle. Specifically, the traction battery pack 9 is arranged in the middle of the vehicle body 1, the input end of the traction battery pack is electrically connected with the current receiving device, and the output end of the traction battery pack is electrically connected with the traction inverter through a circuit breaker and a transformer. The control storage battery pack 10 is arranged in the middle of the vehicle body 1, the input end of the control storage battery pack is electrically connected with the current receiving device, and the output end of the control storage battery pack is electrically connected with the auxiliary inverter.

The circuit breaker is closed by controlling the pantograph to lift or the collector shoe to extend, and the main power supply circuit of the contact network or the contact rail supplies power to a traction motor arranged on the bogie.

The traction battery pack 9 may in particular comprise at least two groups of batteries. In the present embodiment, four groups of storage batteries are taken as an example, and the four groups of storage batteries are sequentially arranged in the vehicle length direction. Each group of storage batteries consists of a plurality of single storage batteries and is integrated in the storage battery box body. The storage battery may be any one of a fuel battery, a lead-acid battery, a nickel-cadmium battery, an iron-nickel battery, a metal oxide battery, a silver-zinc battery, a nickel-hydrogen battery, a sodium salt battery, a titanium lithium battery, a lithium ion battery, and a capacitor.

Each storage battery box body is sequentially arranged along the vehicle length direction, the side wall of each box body is provided with a vent hole, and the bottom of each box body is provided with a drain hole communicated with the inner space of the box body. A heat dissipation gap is reserved between two adjacent storage battery box bodies, and heat dissipation is facilitated. In addition, the bottom of the storage battery box body is also provided with a guide rail which is matched with a guide groove on the underframe of the vehicle body, so that the storage battery box body can be conveniently moved for maintenance. The bottom of the storage battery box body is also provided with a process groove matched with structures such as a fork arm of a forklift, and the storage battery box body is convenient to carry through the forklift.

The storage battery system comprises a set of isolation circuits which are arranged among the storage battery box bodies. When the inspection and repair are carried out, the storage batteries between the box bodies can be disconnected through the isolation circuit, so that the safety risk brought by hot-line work is reduced.

Further, the energy storage device further includes: ventilation system, fire protection system and battery management system. The ventilation system is arranged on the periphery of the traction storage battery pack, particularly on the periphery of the storage battery box body, so that air on the periphery of the storage battery box body flows orderly to dissipate heat, and hydrogen exhausted from the storage batteries can be exhausted timely. For example: the cooling fan 26 may be provided on the periphery of the battery case, or a water cooling line may be arranged on the periphery of the battery case.

The fire protection system is arranged at the periphery of the traction battery, and comprises: at least one of a temperature sensor, a smoke sensor. Specifically, the temperature sensor may be disposed in the battery case or on an outer surface of the battery case, and is configured to detect a temperature inside the battery case or on the outer surface of the battery case. The temperature sensor is electrically connected with the battery management controller, detected temperature data are sent to the battery management controller, and when the temperature is judged to be too high, the ventilation system can be controlled to be started to dissipate heat. The smoke sensor is arranged on the storage battery box body and used for detecting smoke of box body accessories and identifying fire.

Furthermore, a fire extinguishing system can be adopted, the fire extinguishing system can be arranged at the periphery of the storage battery box body,

the fire extinguishing system may specifically comprise: the fire extinguishing controller comprises a tank body containing fire extinguishing agent, an electromagnetic valve arranged at a nozzle of the tank body, and a spray pipe and a nozzle connected with the nozzle of the tank body. The fire extinguishing agent can be powder or foam raw materials, and the electromagnetic valve is electrically connected with the fire extinguishing controller and used for receiving a control signal of the fire extinguishing controller to open or close the nozzle of the tank body. Further, a nozzle lifting device and a rotating and moving device can be further arranged and used for driving the nozzle to lift, move or rotate so as to align the fire point.

Alternatively, the battery management controller may also perform a comprehensive determination of whether a fire has occurred based on the temperature data and the data from the smoke sensor.

The battery management system includes: the battery management controller, and the temperature sensor, the resistance measurement circuit and the electric quantity detection circuit that are connected with the battery management controller electricity, temperature sensor, resistance measurement circuit and electric quantity detection circuit are used for detecting the temperature, resistance and the electric quantity of battery respectively. The battery management controller analyzes and calculates according to temperature resistance and electric quantity data, and displays monitoring data on the monitoring display in real time, so that the storage battery is monitored on line, the state and parameters of each battery can be monitored in real time, potential hazards which may exist are found in time, the batteries with performance reduction are replaced in time, and effective guarantee is provided for normal operation of the electric power storage battery engineering vehicle. The management system can complete the capability of automatically monitoring, displaying and recording parameters of all battery packs and battery monomers for the traction storage battery pack matched with the storage battery engineering vehicle. The performance of the traction storage battery is detected and displayed (comprising a monomer voltage, a capacity estimation and a charging and discharging curve), and during maintenance, the historical data of the storage battery monitoring and management system can be read, and the read data is analyzed and stored; and the ground portable equipment end is connected to the storage battery management system host through the Ethernet port.

Further, the vehicle body 1 is further provided with at least one of a high-voltage cabinet 11, an alternating current power distribution cabinet 12, a communication cabinet 13, an air compressor 14, a tool cabinet 15 and a regenerative braking system. The high-voltage board 11 and the air compressor 14 are disposed behind the front cab 2 and arranged in sequence along the vehicle length direction. The alternating current power distribution cabinet 12 and the communication cabinet 13 are arranged behind the air compressor 14, are positioned above the traction storage battery pack 9 at the front end, and are sequentially arranged along the vehicle length direction.

The tool cabinet 15 is disposed above the traction battery pack 9 at the rear end and behind the communication cabinet 13. The regenerative braking system is arranged on the top of the vehicle body and comprises: a brake resistor 16 and a charger (not shown in the figure) which is respectively connected with the brake resistor 16 and the traction battery pack 9. The energy generated by the work vehicle during braking is regenerated by the brake resistor 16. The traction inverter is also connected with the brake resistor, and the output end of the auxiliary inverter is connected with an auxiliary load of the engineering truck and used for supplying power to the auxiliary load.

Fig. 7 is a schematic diagram of a charging circuit of the electric storage battery work vehicle according to the embodiment of the present application. As shown in fig. 7, a charging circuit is further provided on the vehicle, and the charging circuit includes: fuse FU802, contacts KM103, KM104, capacitor C803, voltage sensor TV805, and power semiconductors Q801, Q805. The contactor KM103 and the fuse FU802 are connected in series with the anode of the storage battery; the voltage sensor TV805 is connected between the negative electrode of the storage battery and the fuse FU802 in parallel; capacitor C803 is connected in parallel with voltage sensor TV 805; an inductor is connected between power semiconductors Q801 and Q805. When the pantograph 7 or the collector shoe 6 supplies power, the power semiconductor circuit boosts or lowers the voltage, and the contactor KM103 is closed, thereby charging the traction battery pack. The entire charging process voltage sensor TV805 monitors the charging voltage in real time.

When the charging loop carries out regenerative braking, the feedback energy can be charged to the traction storage battery through the traction storage battery charger. When the traction storage battery box body needs to be overhauled, storage battery isolating switches among the storage battery packs can be disconnected, and personal safety is guaranteed.

The traction inverter includes: the rectifier sub-module is connected between the traction transformer and the inverter sub-module. And one traction motor is used for driving one axle in the bogie to rotate. The bogie can be driven in an axle control mode, when one axle fails, the inversion sub-modules corresponding to the failed traction motor on the axle are cut off, and the other three inversion sub-modules drive the corresponding axles to rotate as usual, so that the operation of other drives cannot be influenced when one axle fails, and the operation safety factor is improved. Fig. 8 is a schematic diagram of an electric storage battery engineering vehicle axle control traction inverter provided in an embodiment of the present application, and fig. 8 shows a connection circuit in which two inverter sub-modules correspond, and each inverter sub-module is correspondingly connected to one traction motor.

Of course, the two-shaft traction can also be realized by only one inverter, wherein one inverter is replaced by a rail maintenance engineering vehicle which realizes other operation functions, such as a detection vehicle and the like, and the other detection device is expanded.

And a traction circuit breaker, a differential current sensor and a line reactor are also arranged between the traction storage battery pack and the traction inverter. The traction storage battery pack is also connected with a voltage sensor and a current sensor through a change-over switch, and is respectively and electrically connected with a vehicle control system and a traction storage battery capacity detection device to provide voltage and current signals.

When the engineering truck supplies power to the traction storage battery, the high-speed circuit breaker, the differential current sensor and the line reactor which are connected with one end of the traction storage battery are connected to the traction inverter to supply power, and the power supply mode is the same as that of the power supply of a contact net and a contact rail. One path of voltage and current sensors connected with the traction storage battery through the change-over switch are used for providing voltage and current signals for a locomotive control system, a traction storage battery capacity detection device and the like.

Further, the vehicle is also provided with a track detection device, a steel rail flaw detection device, a barrier removal device 18, a brake 19, a brake air cylinder 23 and an air conditioner. The rail detection device and the rail flaw detection device are arranged below the vehicle body, and the obstacle deflector 18 is arranged below the vehicle body and positioned at the front end of the bogie. The brake 19 and the brake reservoir 23 are disposed below the vehicle body. The air conditioner is arranged at the top of the vehicle body, and the air conditioner comprises a front cab air conditioner 24 and a rear cab air conditioner 25 which are respectively arranged at the top of the front cab 2 and the top of the rear cab 3.

Furthermore, a vehicle traction control unit real-time energy consumption calculation system for calculating traction energy consumption and regenerative braking energy consumption is further arranged, traction energy consumption and regenerative braking energy consumption can be calculated, the traction control unit calculates real-time energy consumed during traction and fed back to the power grid during regenerative braking through the measured values of the grid voltage sensor and the input current sensor, and the real-time energy is accumulated.

The machineshop car still includes: and in the emergency power supply system, after the auxiliary converter cannot provide AC380V, the emergency power supply converts the DC800V traction storage battery power supply into a three-phase 380V/50HZ power supply, and the emergency power supply system is specially used for providing power supplies for an air compressor, a water cooling system, a brake resistance heat dissipation fan and the like, so that the driving safety is ensured. The engineering truck can realize multi-machine reconnection control, master-slave brake control and large-load traction. When multi-machine reconnection is carried out, the whole train controller and the brake controller of the main train are used as a main control unit to control the whole train. The control signals are divided into two types of hard wire signals and network communication signals, wherein the hard wire signals are related to braking and safety, and the network signals are related to traction and walking. At the moment, only the control platform at the head end of the main vehicle has the control authority of the whole vehicle, and the control of the control platforms at other ends is invalid. When the end is changed, only the head end and the tail end of the whole train can obtain the control authority, and the reconnection end can not obtain the control authority. If the reconnection connector is disconnected in the running process, the whole train can be braked urgently, and the safety is ensured.

The machineshop car still includes: and the obstacle detection system is used for detecting obstacles and is provided with a wireless/radar/visual non-contact obstacle detection and collision avoidance system. The non-contact obstacle detection system has a deep learning function and a hierarchical diagnosis reference standard, and has high alarm accuracy and low report missing rate.

The engineering truck is provided with a set of vehicle control system and a network control system, the vehicle control system comprises a traction control system and an auxiliary control system, a vehicle control device is arranged in a driver's cab, and a driver adjusts a power system controller through the vehicle control device so as to control the whole truck. The vehicle control system also has various function controls such as whole vehicle logic control, alarm display, power supply mode selection and the like, operation records and the like. The network control system comprises a traction control system and an auxiliary control system and is used for carrying out data acquisition and comprehensive control on the traction system and the auxiliary system. The traction control system can realize four-axis synchronous control, double-machine reconnection control, low constant speed operation control, emergency running, fault display and the like.

When the vehicle controller fails or the communication between the vehicle controller and the electric traction system fails, an emergency running mode can be opened to ensure that the engineering vehicle automatically returns to the station and reduce the need of rescue by other vehicles to the maximum extent. In the mode, all relevant vehicle control signals are transmitted through hard wires and mainly comprise starting control and traction control. At the moment, the engineering truck only has a basic running function and cannot run at a low constant speed. Under the emergency state, a driver cannot see the state information of the electric traction system through the display screen, but can judge the power supply and electric traction state of the engineering truck through a plurality of red entity indicator lamps of the console.

The traction control system also comprises a set of seamless switching control system, and switching from the electrified region to the non-electrified region, from the non-electrified region to the electrified region contact network/contact rail and power supply of the traction storage battery are realized. When the boosted voltage is gradually higher than the voltage of the storage battery, the bidirectional chopping charger is closed, the voltage of the direct-current bus is reduced to the voltage of the storage battery, and the traction system is automatically switched to the traction storage battery for supplying power. When the train runs to the electrified region, the system sends a switching instruction, the auxiliary converter receives a signal and then works the bidirectional chopping charger in a boosting state to feed back energy to the direct-current bus, when the boosting voltage is gradually higher than the voltage of the third rail, the third rail power supply contactor is closed, the bidirectional chopping charger is closed, the voltage of the direct-current bus is reduced to the third rail, and the traction system is automatically switched to the third rail for power supply. In the two processes, the voltage of the direct current bus is gently changed, so that impact on a traction system is avoided, and large line impact current is avoided during switching.

Furthermore, the engineering truck comprises a set of air brake system, and can brake the vehicle and also can jointly control and brake other vehicles connected with the vehicle. The engineering vehicle also comprises a set of electric braking system which can carry out deceleration braking on the vehicle. The air brake device comprises an air compressor, a storage air cylinder, a brake control system and a brake shoe.

The traction system uses the permanent magnet motor as the traction motor, can realize low constant speed operation control, or can use an asynchronous motor according to requirements. By optimizing the traction transmission system, the power supply system of the national railway contact net power supply mode, namely an alternating current-direct current-alternating current power supply system, can be met.

The figure shows that the front and rear ends of the vehicle body are respectively provided with a coupler 17 for coupling the front and rear vehicles. The front bogie travel control traction inverter 20 and the rear bogie travel control traction inverter 21 are provided below the vehicle body and beside the corresponding side bogie, respectively. The assist inverter 22 is provided below the vehicle body between the front bogie travel control traction inverter 20 and the rear bogie travel control traction inverter 21.

Two symmetrical drivers' cabs are installed at two ends of the upper part of the vehicle body, the front driver cab 2 is arranged at the front part, and related control equipment is arranged in the driver cab. The rear part is a rear cab 3, and the rear cab 3 is provided with a rest area except a cab console and necessary control equipment. Lighting equipment such as running lights 27 and marker lights such as brake lights are installed directly in front of the front and rear cabs.

The middle part of the vehicle body is a function room, a storage battery pack, a high-voltage electric appliance cabinet and an air braking system assembly are arranged on the middle layer of the function room, and a low-voltage electric appliance cabinet, a tool box, a storage battery management system and the like are arranged on the upper layer of the function room. The top of the vehicle body is provided with an air conditioning system, a brake resistor, a pantograph, a ventilation system fan, a lightning arrester and other devices. Two sets of bogies are installed at the bottom of the frame and comprise a framework, wheel shafts, a traction motor and a braking device. The middle part of the vehicle bottom is provided with two sets of traction inverters and one set of auxiliary inverter.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (13)

1. An electric power storage battery working vehicle, characterized by comprising:

a vehicle body;

the front cab and the rear cab are respectively arranged at the front end and the rear end of the vehicle body;

the front bogie and the rear bogie are arranged below the vehicle body;

a current receiving device for receiving power from an external power supply device, provided on the vehicle body;

the energy storage device is arranged on the vehicle body;

a traction inverter and an auxiliary inverter for obtaining electric energy from a current receiving device or an energy storage device are arranged on a vehicle body.

2. The power storage battery work vehicle according to claim 1, characterized in that the current receiving device comprises: the collector shoe is arranged on the bogie; the end of the collector shoe is used for contacting a collector rail arranged on the ground to collect current.

3. The power storage battery work vehicle according to claim 1, characterized in that the current receiving device comprises:

the pantograph is used for contacting with a contact network to receive current and is arranged at the top of the vehicle body.

4. A power storage battery working vehicle according to claim 2 or 3, characterized in that the energy storage means comprise: a traction battery pack and a control battery pack;

the input end of the traction storage battery pack is electrically connected with the current receiving device, and the output end of the traction storage battery pack is electrically connected with the traction inverter;

the input end of the control storage battery pack is electrically connected with the current receiving device, and the output end of the control storage battery pack is electrically connected with the auxiliary inverter.

5. The power storage battery work vehicle of claim 4, wherein the energy storage device further comprises: a ventilation system, a fire protection system and a storage battery management system;

the ventilation system is arranged at the periphery of the traction storage battery pack;

the fire protection system is arranged on the periphery of the traction storage battery pack; the fire protection system includes: at least one of a temperature sensor, a smoke sensor;

the battery management system includes: the battery management controller, and a temperature sensor, a resistance measurement circuit and an electric quantity detection circuit which are electrically connected with the battery management controller.

6. The power storage battery work vehicle of claim 5, wherein the energy storage device further comprises: a fire suppression system; the fire extinguishing system is arranged on the periphery of the traction storage battery pack;

the fire suppression system includes: a fire extinguishing controller and a fire extinguishing device; the fire extinguishing apparatus includes: the fire extinguishing device comprises a tank body for storing fire extinguishing agents, a spray pipe connected with a nozzle of the tank body and a nozzle connected to the end part of the spray pipe.

7. The electric power storage battery engineering vehicle according to claim 1, wherein at least one of a high-voltage cabinet, an air compressor, an alternating current power distribution cabinet, a communication cabinet, a tool cabinet and a regenerative braking system is further arranged on the vehicle body;

the high-voltage cabinet and the air compressor are arranged behind the front cab and are sequentially arranged along the length direction of the vehicle;

the alternating current power distribution cabinet and the communication cabinet are arranged behind the air compressor, are positioned above the traction storage battery pack and are sequentially arranged along the vehicle length direction;

the tool cabinet is arranged above the traction storage battery pack and is positioned behind the communication cabinet;

the regenerative braking system is arranged on the top of the vehicle body and comprises: a brake resistor and a charger; and the charger is respectively connected with the brake resistor and the traction storage battery.

8. The power storage battery work vehicle of claim 1, wherein the traction inverter comprises: four rectifier sub-modules and four inverter sub-modules; the rectifier submodule is connected between the traction transformer and the inverter submodule;

and one traction motor is used for driving one axle in the bogie to rotate.

9. The power storage battery engineering vehicle according to claim 4, wherein a traction breaker, a differential current sensor and a line reactor are further arranged between the traction storage battery pack and the traction inverter;

the traction storage battery pack is also connected with a voltage sensor and a current sensor through a change-over switch, and is respectively and electrically connected with a vehicle control system and a traction storage battery capacity detection device to provide voltage and current signals.

10. The power storage battery working vehicle according to claim 4, characterized by further comprising: a charging circuit; the charging circuit includes: a contactor, a fuse, a capacitor, a voltage sensor, a power semiconductor; the contactor and the fuse are connected in series with the anode of the storage battery; the voltage sensor is connected in parallel between the negative electrode of the storage battery and the fuse; the capacitor is connected with the voltage sensor in parallel; an inductor is connected between the power semiconductors.

11. An electric power storage battery working vehicle according to claim 4, characterized in that the traction battery pack comprises at least four sets of storage batteries, each set of storage batteries being arranged in a battery box; the side wall of the storage battery box body is provided with a vent hole; a heat dissipation gap is formed between every two adjacent storage battery box bodies; the bottom of the storage battery box body is provided with a guide rail convenient to move.

12. The power storage battery working vehicle according to claim 1, characterized by further comprising: at least one of a track detection device, a steel rail flaw detection device, a vehicle traction control unit real-time energy consumption calculation system for counting traction energy consumption and regenerative braking energy consumption, and an obstacle detection system for detecting obstacles; the track detection device and the steel rail flaw detection device are arranged below the vehicle body.

13. The power storage battery working vehicle according to claim 1, characterized by further comprising: and the emergency power supply system is used for converting the power supply of the storage battery into a three-phase power supply to be supplied to the air compressor, the water cooling system and the brake resistance heat dissipation fan when the auxiliary converter fails.

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