CN111439137A - Lithium iron phosphate power battery pack new energy railcar - Google Patents
Lithium iron phosphate power battery pack new energy railcar Download PDFInfo
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- CN111439137A CN111439137A CN202010134822.4A CN202010134822A CN111439137A CN 111439137 A CN111439137 A CN 111439137A CN 202010134822 A CN202010134822 A CN 202010134822A CN 111439137 A CN111439137 A CN 111439137A
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000110 cooling liquid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000002929 anti-fatigue Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000012782 phase change material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- -1 expansion tank Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a lithium iron phosphate power battery new energy rail car, which comprises: the device comprises a vehicle body, a carriage, a running part, a braking system, a traction transmission system and a battery pack; the battery pack adopts a lithium iron phosphate power battery, adopts a modular design and is arranged on two sides in the carriage, so that the gap between the lower part of the rail car and the rail surface is increased, and the running safety performance is improved; the carriage is provided with the skylight, and the battery module can be hoisted in and out of the carriage through the skylight, so that the time required by replacing, charging or overhauling the battery pack is greatly shortened, and the utilization rate of the new energy rail car is improved; the cooling and heating integrated machine is adopted to ensure that the working temperature of the battery module is kept within a proper range, the effective electric capacity of the battery pack is improved, and the environmental temperature adaptation range of the battery pack is expanded. The lithium iron phosphate power battery pack new energy railcar has the advantages of high charging speed, large capacity, long service life, good safety, good high-temperature performance, long endurance, good road surface adaptability and good running safety.
Description
Technical Field
The application relates to the technical field of power traction rail car vehicles, in particular to a lithium iron phosphate power battery pack new energy rail car.
Background
With the rapid development of urban rail transit, comprehensive pipe gallery and railway construction and the great improvement of tunnel construction level in China, the traction operation of rail vehicles in the tunnel is increasingly heavy in the engineering construction stage. The subway rail car is used as the only source of traction power for welding and transporting various rail materials, concrete and steel rails in subway construction, and is a necessary rail construction machine for subway construction.
At present, domestic subway rail cars mainly use rail cars powered by diesel engines as the main power, and the defects of construction of the rail cars in closed tunnels are as follows: (1) the environment pollution is large, the internal combustion engine generates large noise when being started, the noise is up to 100 decibels, meanwhile, large smoke is discharged, and particularly, the smoke is difficult to discharge when being constructed in a tunnel, so that the body health of workers and maintainers is seriously influenced; when the construction is carried out on elevated and ground road sections, the life of residents around the construction is influenced, and adverse social influence is caused. (2) The energy transfer efficiency is low, the energy transfer efficiency of the internal combustion engine is only 40%, and the energy transfer efficiency of the electric motor can reach 90%. (3) Fossil fuels used by internal combustion engines are a non-sustainable energy source. (4) The rail car has disordered specifications, low traction weight, low speed, low power and the like.
The foreign subway rail cars mainly use diesel engines as power, and novel rail cars which use storage batteries as power or are oil-electricity hybrid are developed rapidly. But also has the problems of insufficient endurance mileage, small traction tonnage, incomplete function and the like.
At present, electric rail cars developed at home and abroad mainly comprise low-voltage rail power supply type electric flat cars, cable drum power supply electric rail cars, safety sliding contact wire power supply type electric rail cars, cable supporting power supply type electric rail cars and storage battery power supply type electric rail cars. When the low-voltage rail power supply, the cable drum power supply, the sliding contact line power supply and the cable supporting power supply are transported remotely, and the tail end of the rail or the tail end of the cable are in long-distance transportation, the voltage drop is large, the motor is difficult to start, and the low-voltage rail and the sliding contact line are difficult to construct during tunnel construction.
In view of the above problems, research on the replacement of an internal combustion railcar by a fuel-free green power subway railcar has become a common demand for social development, enterprise development and technical development, and is also a necessary trend for adapting to the application of domestic new energy equipment and the development of subway construction equipment to the directions of no smoke, environmental protection and energy conservation.
Through patent retrieval, the following patents mainly exist, which have a certain relationship with the invention:
1. the invention discloses a subway tractor, which is a Chinese invention patent with the application number of 'CN 201811190297.7', the application date of '2018.10.12', the publication number of 'CN 109263667A', the publication date of '2019.01.25', the name of 'a subway tractor', and the application person of 'Tanzhou times electronic technology Limited company', and the invention discloses a subway tractor, which comprises: the subway tractor comprises a frame, a vehicle body arranged above the frame, two bogies arranged below the frame and at two ends of the frame along the walking direction of the subway tractor respectively, and an under-vehicle device arranged below the frame and positioned between the two bogies. The vehicle body comprises a front-end cab and a rear-end cab which are arranged at two ends above the vehicle frame along the running direction of the subway tractor, and an electric room arranged between the front-end cab and the rear-end cab. The storage battery is arranged between the electric room and provides a unique power source for the subway tractor, and the single rescue or single traction operation requirement of the subway tractor can be met. The invention can solve the technical problems of serious pollution, noise generation and great influence on the surrounding environment when the conventional subway tractor adopts internal combustion power to operate in a subway tunnel. However, the invention does not relate to a battery pack arrangement mode, a battery pack temperature control device and a safety protection system of the new energy rail car. The invention does not relate to the types of batteries, the arrangement form of the battery packs, the temperature control device of the battery packs and the safety protection system of the new energy rail car.
2. The invention discloses a subway operation vehicle, which is a Chinese invention patent with the application number of 'CN 201811190299.6', the application date of '2018.10.12', the publication number of 'CN 109278768A', the publication date of '2019.01.29', the name of 'a subway operation vehicle' and the application person of 'Tanzhou times electronic technology Co., Ltd', and the invention discloses a subway operation vehicle, which comprises: a frame; the cab is arranged above the frame and is arranged at the front end along the running direction of the subway operation vehicle; the electric room is arranged above the frame, positioned behind the cab and communicated with the cab; the operation device is arranged above the frame and behind the electric room; the two bogies are arranged below the frame and are respectively positioned at the front end and the rear end of the frame along the running direction of the subway operation vehicle; and under-vehicle equipment arranged below the frame and positioned between the two bogies; be provided with the battery in the electricity room, the battery provides only power supply for subway operation car to can satisfy subway tractor's operation demand. The invention can solve the technical problems of serious pollution, noise generation and great influence on the surrounding environment when the existing subway operation vehicle adopts internal combustion power to operate in a subway tunnel. The invention does not relate to the types of batteries, the arrangement form of the battery packs, the temperature control device of the battery packs and the safety protection system of the new energy rail car.
3. The invention relates to a storage battery alternating current transmission operating vehicle, which comprises a vehicle body, a bogie, a driver cab, a machine room, an operating system and a power storage device, wherein the bogie is provided with a traction motor, and the traction motor is connected with an axle gear box fixed on a bogie wheel pair; the traction motor, the electric storage device management system, the traction inverter, the auxiliary converter, the vehicle control device and the power system controller form a power transmission system; the electric storage device management system, the traction inverter and the auxiliary converter are fixed on the vehicle body; the vehicle operating device is installed in a driver's cabin. The invention can be operated by the power supply of the power storage device, the electric quantity of the power storage device can meet the daily operation requirement of the engineering truck, the noise and the emission are reduced, and the invention is environment-friendly and energy-saving. The invention does not relate to the types of batteries, the arrangement form of the battery packs, the temperature control device of the battery packs and the safety protection system of the new energy rail car.
4. The utility model relates to a utility model patent of "new reputation track traffic science and technology limited company" is "the utility model relates to an application number is" CN201721769376.4 ", and application date is" 2017.12.18 ", and the publication number is" CN207834534U ", and the publication date is" 2018.09.07 ", and the name is" group battery temperature control device and group battery temperature control system ", and the applicant is, this utility model relates to a group battery temperature control device and group battery temperature control system, include: the cooling liquid circulating system is suitable for adjusting the temperature of the battery pack through cooling liquid; and the temperature adjusting system is suitable for adjusting the temperature of the cooling liquid. This group battery temperature control device has real time monitoring cooling pipeline temperature, and drive coolant liquid circulation is automatic to the coolant liquid after exceeding the settlement temperature and is heated, refrigerates etc. realizes the reliable and stable temperature control to lithium cell monomer, solves the problem of generating heat in lithium cell charging, the discharge process, greatly improves the adaptability of lithium cell to high temperature, low temperature environment. But this utility model does not relate to the safety protection system of battery kind, group battery arrangement form, group battery temperature control device and new forms of energy railcar.
5. The invention provides a battery pack composite thermal management system and a control method thereof, wherein the battery pack composite thermal management system comprises a lithium battery, a composite phase change material, a flat plate type heat pipe, a liquid cooling system, fins, a temperature sensor, a battery management system, a water pump, a water tank, a radiator and a storage battery, wherein the application number of the battery pack composite thermal management system is 201910279430.4, the application date of the battery pack composite thermal management system is 2019.04.09, the publication number of the battery pack is CN 110112499A, the publication date of the battery pack is 2019.08.09, the name of the battery pack composite thermal management system is 'and the control method thereof', and the application person of the; the composite phase-change material is uniformly coated on the periphery of the lithium battery, the front surface and the back surface of the lithium battery are attached to the evaporation end of the flat-plate heat pipe, the condensation end is exposed out of the battery, and fins are welded on the condensation end; the temperature sensor is installed on the surface of the battery module and is sequentially connected with the battery management system and the storage battery, and the battery management system is sequentially connected with the water pump, the water tank and the radiator. The evaporation end of the flat-plate heat pipe absorbs heat in the phase-change material, the vertical liquid cooling plate is used for dissipating heat for the condensation end, the battery management system controls the flow rate of cooling liquid according to the temperature of the battery module, and the heat of the battery pack is taken away through the cooling liquid. The invention has good heat dissipation effect, improves the safety of the battery module and prolongs the service life of the battery module. However, the invention does not relate to the new energy rail car, the battery type, the battery pack arrangement form, the battery pack temperature control device and the safety protection system of the new energy rail car.
6. The utility model discloses a utility model patent of application number "201821460004.8", application date is "2018.09.05", publication number "CN 208862051U", publication date is "2019.05.14", the name is "a railcar", the applicant is "the group limited company of engineering office of china and china Shanghai" this application discloses a railcar for solve among the prior art and adopt diesel engine's railcar during operation to produce harmful gas's problem. The railcar includes: the rail car comprises a rail car body and a plurality of battery boxes; the railcar body respectively with a plurality of battery box electric connection, a plurality of battery box all set up in inside the railcar, a plurality of battery box are used for the railcar body provides the power source. But this utility model does not relate to the safety protection system of battery kind, group battery arrangement form, group battery temperature control device and new forms of energy railcar.
Disclosure of Invention
The invention aims to solve the technical problems of insufficient endurance mileage, small traction tonnage, incomplete functions and the like in the prior art and provides a lithium power battery pack new energy rail car which is high in charging speed, large in capacity, long in service life, good in safety, good in high-temperature performance and long in endurance mileage.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a lithium iron phosphate power battery new forms of energy railcar, includes: the device comprises a vehicle body, a carriage, a running part, a braking system, a traction transmission system and a battery pack; the running part, the braking system and the traction transmission system are arranged on the lower side of the vehicle body, and the carriage is arranged on the upper side of the vehicle body; the battery pack adopts a lithium iron phosphate power battery. The lithium iron phosphate power battery has the advantages of high charging speed, large capacity, long service life, good safety, good high-temperature performance and long endurance.
Further, the group battery adopts the modularization setting, and the group battery comprises battery module, battery module comprises a whole by a plurality of lithium iron phosphate power battery and protection casing assembly, and the cluster/parallel connection between a plurality of lithium iron phosphate power battery, battery module can integral erection and removal.
Furthermore, the battery modules are arranged on two sides in the carriage, the gap between the lower part of the new energy railcar and the rail surface is increased, so that the complex working conditions of water accumulation, mud accumulation, ballast accumulation and the like in a section are adapted, and the pavement adaptability and the operation safety are good.
Furthermore, the carriage is provided with a skylight, the battery module can be hoisted in and out of the carriage through the skylight, and the battery module can be conveniently and quickly replaced.
Further, the new energy rail car is also provided with a battery pack temperature control device, the battery pack temperature control device exchanges heat with the battery module to control the working temperature of the battery module, so that the working temperature of the battery module is kept in a proper range, the effective electric capacity of the battery is improved, and the environmental temperature adaptation range of the battery is expanded.
Further, the temperature control device for a battery pack includes: the cooling and heating integrated machine comprises a cooling and heating integrated machine and a heat exchange component arranged in the battery module, wherein the heat exchange component is connected with the cooling and heating integrated machine through a pipeline. When the ambient temperature is lower than the lowest working temperature of the lithium iron phosphate power battery, heating the battery module through the heat exchange component; and when the ambient temperature is higher than the highest working temperature of the lithium iron phosphate power battery, cooling the battery module through the heat exchange component.
Further, the cooling and heating all-in-one machine comprises: cooling liquid, expansion tank, water pump, PTC heating device, cooling device. When the environmental temperature is lower than the lowest working temperature of the lithium iron phosphate power battery, the cooling liquid is heated by the PTC heating device; and when the ambient temperature is higher than the highest working temperature of the lithium iron phosphate power battery, cooling the cooling liquid by the cooling device.
Further, new forms of energy railcar still is provided with safety protection system, includes: the system comprises a speed limit protection subsystem, an interval protection subsystem and a fatigue driving reminding subsystem.
The invention also relates to a battery pack replacing, charging or overhauling method of the new energy rail car, which comprises the following steps: the battery pack comprises a vehicle body, a carriage and a battery pack, wherein the carriage is arranged on the upper side of the vehicle body; the battery pack is a lithium iron phosphate power battery, consists of battery modules and is arranged in the carriage, and the carriage is provided with a skylight; the battery pack is replaced, charged or overhauled in a mode of integrally replacing the battery module. The time required by replacing, charging or overhauling the battery pack is greatly shortened, and the structural reasonability of the battery pack system of the new-energy rail car is improved.
Furthermore, the battery module to be replaced, charged or overhauled is integrally lifted out of the carriage through the skylight, and then a new battery pack, a fully charged or overhauled battery module is integrally lifted into the carriage through the skylight for installation, so that the battery module can be conveniently and quickly replaced.
The invention has the beneficial effects that: the battery pack adopts a lithium iron phosphate power battery, and has the advantages of high charging speed, large capacity, long service life, good safety, good high-temperature performance and long endurance. The battery pack is in modular design and arranged on two sides in the carriage, so that the gap between the lower part of the new energy railcar and the rail surface is increased, and the operation safety performance is improved. The carriage is provided with the skylight, and battery module can pass in and out the carriage through skylight hoist and mount, has shortened the group battery greatly and has changed, charge or overhaul required time, has optimized the structure of new forms of energy railcar. And the cooling and heating integrated machine is adopted to ensure that the working temperature of the battery module is kept in a proper range so as to improve the effective capacitance of the lithium iron phosphate power battery and adapt to a wider environment temperature range.
Drawings
Fig. 1 is a schematic perspective view of a new energy railcar;
fig. 2 is a front view schematic diagram of a new energy railcar;
FIG. 3 is a schematic top view of a new energy railcar;
FIG. 4 is a schematic cross-sectional view taken at the location A-A in FIG. 2;
fig. 5 is a schematic front view of a battery module;
FIG. 6 is a schematic side view of a battery module;
FIG. 7 is a schematic view of a temperature control device of a battery pack;
FIG. 8 is a schematic view of a driver fatigue warning subsystem;
FIG. 9 is a schematic diagram of an inter-zone protection subsystem;
in the figure: the system comprises a vehicle body 1, a carriage 2, a skylight 21, a walking part 3, a braking system 4, a traction transmission system 5, a battery module 6, a lithium iron phosphate power battery 61, a protective cover 62, a hanging seat 63, a heat exchange part 64, a pipe joint 65, a cooling and heating integrated machine 7, an expansion water tank 8, a pipeline 9 and a valve 10.
Detailed Description
The invention is further described by the following specific embodiments in conjunction with the attached drawings:
as shown in fig. 1 to 3: the utility model provides a lithium iron phosphate power battery new forms of energy railcar, includes: the intelligent vehicle comprises a vehicle body 1, a carriage 2, a walking part 3, a braking system 4, a traction transmission system 5, a battery pack, an intelligent charging pile, an operation control system, a vehicle coupler, an air compressor, a radiator and the like; the walking part 3, the braking system 4 and the traction transmission system 5 are arranged at the lower side of the vehicle body 1, the power transmission system is arranged in the middle of the vehicle body, and the carriage 2 is arranged at the upper side of the vehicle body 1; a skylight 21 is arranged on the top of the carriage 2, and the battery pack adopts a lithium iron phosphate power battery. The lithium iron phosphate power battery has the advantages of high charging speed, large capacity, long service life, good safety, good high-temperature performance and long endurance.
As shown in fig. 5 to 6: the group battery adopts the modularization setting, and the group battery comprises battery module 6, battery module 6 is assembled by a plurality of lithium iron phosphate power battery 61 and protection casing 62 and is constituteed a whole, and cluster/parallel connection between a plurality of lithium iron phosphate power battery 61 is provided with on the protection casing 62 and hangs seat 63 and coupling 65, is provided with heat exchange component 64 between a plurality of lithium iron phosphate power battery 61 in the protection casing 62, and battery module 6 can integral erection and removal.
As shown in fig. 4: the battery modules 6 are arranged on two sides in the carriage 2, the walking channel is arranged in the middle of the carriage 2, the gap between the lower part of the new energy railcar and the rail surface is increased, so that the complex working conditions of accumulated water, muddy, ballast accumulation and the like in a section are adapted, and the pavement adaptability and the operation safety are good. Meanwhile, the operation and the passing of operators are not influenced.
As shown in fig. 7: the new energy rail car is also provided with a battery pack temperature control device so as to exchange heat with the battery module 6 to control the working temperature of the battery module 6, so that the working temperature of the battery module 6 is kept in a proper range, and the effective capacity of the lithium iron phosphate power battery 61 is improved.
The battery pack temperature control device includes: the cooling and heating integrated machine 7, the pipeline 9, the valve 10 and the heat exchange component 64 arranged in the battery module 6. The cooling and heating integrated machine 7 includes: coolant, expansion tank 8, water pump, PTC heating device, cooling device. The heat exchange component 64 is connected with the cooling and heating integrated machine 7 through a pipeline 9 and a valve 10, and the expansion water tank 8 is connected with the pipeline 9 and is arranged at a position higher than the cooling and heating integrated machine 7 for supplementing and receiving the volume change of the cooling liquid caused by expansion with heat and contraction with cold.
When the ambient temperature is lower than the lowest working temperature of the lithium iron phosphate power battery 61, the cooling liquid is heated by the PTC heating device; the water pump makes the heated cooling liquid enter the heat exchange part 64 through the pipeline 9 and the valve 10, and heats the lithium iron phosphate power battery 61 through the heat exchange part 64. When the ambient temperature is higher than the highest working temperature of the lithium iron phosphate power battery 61, the cooling device cools the cooling liquid, the water pump cools the cooled cooling liquid through the pipeline 9 and the valve 10 to enter the heat exchange part 64, and the heat exchange part 64 cools the lithium iron phosphate power battery 61. The working temperature of the battery module 6 is kept within a proper range, the effective capacitance of the lithium iron phosphate power battery 61 is improved, and the environmental temperature adaptation range of the lithium iron phosphate power battery 61 is expanded.
New forms of energy railcar still is provided with safety protection system, includes: the system comprises a speed limit protection subsystem, an interval protection subsystem and a fatigue driving reminding subsystem. The speed limit protection subsystem: the speed limit value of the vehicle can be set in the running instrument, when the speed limit value is within 10 percent, the rail car sends out a voice alarm signal and is electrically braked and decelerated, and if the speed cannot be reduced below the set speed limit within the set time, the system automatically brakes, decelerates and stops. The interval protection subsystem: when the vehicle approaches to other railcars on the line, a voice alarm signal can be sent out, and if the vehicle continuously approaches to a certain distance and the driver does not have the deceleration action, the system automatically brakes the vehicle by electric brake to decelerate and stop. The fatigue driving reminding subsystem comprises: the panel is additionally provided with an anti-fatigue button, and when the driver is in fatigue operation, the buzzer gives an alarm.
The fatigue driving reminding subsystem is shown in fig. 8: when an operator needs to press the anti-fatigue button every 5 minutes, the new energy rail car normally runs. When the operator does not press the anti-fatigue button for more than 5 minutes, an alarm signal is output, and meanwhile, the buzzer gives an alarm. When the operator performs corresponding operation within 1 minute, the new energy rail car normally runs and eliminates the alarm. When the operator does not perform the corresponding operation for more than 1 minute, the control mode is switched to the deceleration braking, and the preset control mode is started.
The inter-zone protection subsystem system is shown in fig. 9: when the vehicle approaches to other railcars on the line, a voice alarm signal can be sent out, and if the vehicle continuously approaches to a certain distance and the driver does not have the deceleration action, the system automatically brakes the vehicle by electric brake to decelerate and stop.
The invention also relates to a battery pack replacing, charging or overhauling method of the new energy rail car, which comprises the following steps: the battery module 6 that will need to be changed, charge or overhaul wholly hangs out carriage 2 through skylight 21, then with the new group battery, the battery module 6 that is full of the electricity or overhaul wholly hangs into carriage 2 installation through skylight 21, changes, charges or overhauls the group battery through the mode of wholly changing battery module 6, has shortened the group battery greatly and has charged or overhauld required time, has improved the structural rationality of new forms of energy railcar.
In summary, the following steps: the invention has the beneficial effects that: the battery pack adopts a lithium iron phosphate power battery, and has the advantages of high charging speed, large capacity, long service life, good safety, good high-temperature performance and long endurance. The battery pack is in modular design and arranged on two sides in the carriage, so that the gap between the lower part of the new energy railcar and the rail surface is increased, and the operation safety performance is improved. The carriage is provided with the skylight, and battery module can pass in and out the carriage through skylight hoist and mount, has shortened the group battery greatly and has changed, charge or overhaul required time, has optimized the structure of new forms of energy railcar. And the cooling and heating integrated machine is adopted to ensure that the working temperature of the battery module is kept in a proper range so as to improve the effective capacitance of the lithium iron phosphate power battery and adapt to a wider environment temperature range.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. The utility model provides a lithium iron phosphate power battery new forms of energy railcar, includes: the device comprises a vehicle body (1), a carriage (2), a walking part (3), a braking system (4), a traction transmission system (5) and a battery pack; the walking part (3), the braking system (4) and the traction transmission system (5) are arranged on the lower side of the vehicle body (1), and the carriage (2) is arranged on the upper side of the vehicle body (1); the method is characterized in that: the battery pack adopts a lithium iron phosphate power battery.
2. The new energy railcar according to claim 1, wherein: the group battery adopts the modularization setting, and the group battery comprises battery module (6), battery module (6) are assembled by a plurality of lithium iron phosphate power battery (61) and protection casing (62) and are constituteed a whole, and the cluster/parallel connection between a plurality of lithium iron phosphate power battery (61), battery module (6) can be installed and remove wholly.
3. The new energy railcar according to claim 2, wherein: the battery modules (6) are arranged on two sides in the carriage (2).
4. The new energy railcar according to claim 3, wherein: the carriage (2) is provided with a skylight (21), and the battery module (6) can be hoisted to enter and exit the carriage (2) through the skylight (21).
5. The new energy railcar according to any one of claims 2 to 4, wherein: the new energy rail car is further provided with a battery pack temperature control device, and the battery pack temperature control device exchanges heat with the battery module (6) to control the working temperature of the battery module (6).
6. The new energy railcar according to claim 5, wherein: the battery pack temperature control device includes: the battery module comprises a cooling and heating integrated machine (7) and a heat exchange part (64) arranged in the battery module (6), wherein the heat exchange part (64) is connected with the cooling and heating integrated machine (7) through a pipeline (9).
7. The new energy railcar according to claim 6, wherein: the cooling and heating integrated machine (7) comprises: cooling liquid, an expansion water tank (8), a water pump, a PTC heating device and a cooling device.
8. The new energy railcar according to any one of claims 1 to 4, wherein: new forms of energy railcar still is provided with safety protection system, includes: the system comprises a speed limit protection subsystem, an interval protection subsystem and a fatigue driving reminding subsystem.
9. A battery pack replacing, charging or overhauling method of a new energy rail car comprises the following steps: the battery car comprises a car body (1), a carriage (2) and a battery pack, wherein the carriage (2) is arranged on the upper side of the car body (1); the method is characterized in that: the battery pack is a lithium iron phosphate power battery, consists of battery modules (6) and is arranged in the carriage (2), and the carriage (2) is provided with a skylight (21); the battery pack is replaced, charged or overhauled in a mode of integrally replacing the battery module (6).
10. The battery pack replacement, charging or service method according to claim 9, wherein: the battery module (6) which needs to be replaced, charged or overhauled is integrally lifted out of the carriage (2) through the skylight (21), and then a new battery pack, the fully charged or overhauled battery module (6) is integrally lifted into the carriage (2) through the skylight (21) for installation.
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| CN202010134822.4A CN111439137A (en) | 2020-03-02 | 2020-03-02 | Lithium iron phosphate power battery pack new energy railcar |
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| CN202010134822.4A CN111439137A (en) | 2020-03-02 | 2020-03-02 | Lithium iron phosphate power battery pack new energy railcar |
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