CN114039174B - High-capacity battery system for locomotive - Google Patents
High-capacity battery system for locomotive Download PDFInfo
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- CN114039174B CN114039174B CN202111412402.9A CN202111412402A CN114039174B CN 114039174 B CN114039174 B CN 114039174B CN 202111412402 A CN202111412402 A CN 202111412402A CN 114039174 B CN114039174 B CN 114039174B
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- battery
- fuse
- fusing
- assembly
- copper bar
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- 230000001012 protector Effects 0.000 claims abstract description 21
- 210000001503 joint Anatomy 0.000 claims description 24
- 238000004378 air conditioning Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/06—Power storing devices
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a large-capacity battery system for a locomotive. The high-capacity battery system for the locomotive comprises a battery assembly and a fusing protection assembly, wherein the fusing protection assembly improves the safety performance of the battery system; the fusing protection component comprises a system positive electrode fuse, a battery pack fuse, a module connecting copper bar, a bus copper bar, a fuse wire group and a battery cell protector, wherein the fusing current value of the fusing protection component is arranged as follows: the system positive electrode fuse is more than a battery pack fuse, more than a module connection copper bar, more than a bus copper bar, more than a fuse wire and less than a cell protector. The invention has simple structure, the positive high-voltage box, the negative high-voltage box, the control battery system box body, the power battery component and the heat protection system are arranged in a centralized way, and an integral mounting frame is adopted, so that the installation is simple and convenient, and the integration degree is high; and a 6-layer fusing safety design is adopted, and the fusing current values allowed to pass by different parts in the fusing protection assembly are different, so that the fusing current protection of each level is realized.
Description
Technical Field
The invention relates to the technical field of locomotive battery systems, in particular to a high-capacity battery system for a locomotive.
Background
At present, the power battery system used in the rail transit industry is still in an initial stage, the energy of the battery system adopted is relatively low, most of the battery system is used for auxiliary power supply, a large amount of fuel oil is consumed and a large amount of polluted gas is generated for traction operation by using a high-power diesel engine purely, and the environment is influenced, so that the demand on the energy-saving environment-friendly diesel locomotive is urgent, the high-capacity high-power battery system starts to be applied to replace the diesel engine for work, the combustion efficiency consumption is reduced, and the purposes of saving energy and protecting environment are realized.
The power battery system adopted in the current automobile industry and the track traffic industry has smaller capacity, and the used environmental conditions are different and cannot be directly used. The current integrated design modes of the high-power battery system in the rail traffic industry are different, the battery is often controlled to be additionally provided with a device, a plurality of systems are required to be installed for a plurality of times for matching, and the safety design protection is required to be carried out against the safety problem of the high-capacity battery, so that the novel power battery system with high integration and multiple safety redundancy designs is designed.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects in the prior art and provides a large-capacity battery system for locomotives.
The technical scheme adopted for solving the technical problems is as follows: a high-capacity battery system for a locomotive comprises a battery assembly and a fusing protection assembly, wherein the fusing protection assembly improves the safety performance of the battery system; the battery assembly comprises a positive high-voltage box, a negative high-voltage box, a control battery system box body and a power battery assembly; the power battery assembly comprises a plurality of power battery units connected in parallel, and the power battery units are connected in series by a plurality of power battery packs; the power battery unit is connected in series by a plurality of power battery packs; the positive electrode of the power battery assembly is connected with a positive electrode high-voltage box, the output end of the positive electrode high-voltage box is connected with the power utilization positive electrode end of the load, the negative electrode of the power battery assembly is connected with a negative electrode high-voltage box, and the negative electrode of the negative electrode high-voltage box is connected with the negative electrode end of the load; the anode and the cathode of the control battery system box body are connected with low-voltage control equipment on the locomotive
The power battery pack is provided with a plurality of battery core modules which are connected in series;
The fusing protection assembly comprises a system positive electrode fuse, a battery pack fuse, a module connecting copper bar, a bus copper bar, a fuse wire group and a battery cell protector;
The system positive fuse is arranged at two ends of each power battery unit in series; the battery pack fuse is internally arranged in the power battery pack and is connected with the battery cell module in series;
The battery cell module comprises a plurality of battery cells and a plurality of battery cell protectors, the battery cells are arranged in parallel, the battery cell protectors are arranged at one end part of the battery cells in series, and a bus copper bar is arranged at the outer side of the battery cell module and connected with the battery cell module; the connection of two adjacent cell modules is completed through the connection of the module connection copper bars between two adjacent bus copper bars;
The fuse wire group comprises a plurality of fuse wires which are connected in parallel, and the fuse wire group is arranged between any two cell modules in series.
Further, the fusing current values of the fusing protection component are arranged according to the size as follows: the system positive electrode fuse is more than a battery pack fuse, more than a module connection copper bar, more than a bus copper bar, more than a fuse wire and less than a cell protector.
Further, the battery system is also provided with a shell with a sealing structure, the battery component and the fusing protection component are arranged in the shell, and a supporting frame for supporting the battery component is further arranged in the shell.
Further, the battery system also comprises a heat radiation system, the heat radiation system comprises an air conditioning unit and a vertical air duct, the air conditioning unit is arranged outside the shell, the vertical air duct is arranged inside the shell, an air inlet hole and an air outlet hole are formed in the shell, the air outlet end of the air conditioning unit is connected with the air inlet hole, the air inlet hole is connected with the vertical air duct, and the air inlet end of the air conditioning unit is connected with the air outlet hole; a plurality of butt joint pipes are arranged on the vertical air duct and are respectively in butt joint with the rear end of the box body of the battery assembly.
Further, the top end of the vertical air channel is in sealing connection with the air inlet through a sealing gasket, and the bottom end of the vertical air channel is a closed end.
Further, the rear end of the butt joint pipe is connected with the vertical air duct, the front end of the butt joint pipe is respectively connected with the box body of the battery assembly, the butt joint pipe is internally provided with regulating valves for regulating the air inlet quantity of each box body, and the front end of the butt joint pipe is provided with a conical sealing ring.
Further, fans for extracting hot air from the box body are respectively arranged at the front ends of the box bodies of the battery assemblies.
Further, the battery component is connected with the supporting frame in a drawing way; the bottom end of the battery assembly is fixedly provided with a sliding guide rail which slides along the supporting frame, the sliding guide rail is provided with a small roller and a large roller, and the small roller and the large roller are arranged in front and back; the support frame is provided with a small bayonet and a large bayonet corresponding to the small roller and the large roller.
Further, the front end of the sliding guide rail is provided with a first locking hole fixed with the supporting frame, the rear end of the sliding guide rail is vertically provided with a mounting plate, and the mounting plate is provided with a second locking hole fixed with the box body.
Further, the front end and the rear end of the small bayonet and the large bayonet are respectively provided with inclined planes.
The beneficial effects of the invention are as follows: the invention has the advantages of simple structure and:
(1) The integrated solar cell module is reasonable in design and simple and convenient to operate, the positive high-voltage box, the negative high-voltage box, the control cell system box body, the power cell assembly and the heat dissipation system are placed in a centralized mode, an integral mounting frame is adopted, the installation is simple and convenient, and the integration degree is high;
(2) The 6-layer fusing safety design is adopted, and the fusing current values allowed to pass by different parts in the fusing protection assembly are different, so that the fusing current protection of each level is realized;
(3) Cold air in the air conditioning unit enters the box body of the battery assembly after passing through the air inlet hole, the vertical air duct and the butt joint pipe, and the heat dissipation procedure is carried out on components in the box body; then the fan works to extract hot air in the box body, the hot air is discharged to the inner cavity of the shell, and then enters the air conditioning unit through the air outlet hole to circularly dissipate heat, so that the heat dissipation performance of the air conditioning unit is further improved;
(4) The battery assembly adopts a box body with a traction type box body structure, so that the maintenance and the design are convenient;
(5) The front end and the rear end of the small bayonet and the large bayonet are respectively provided with an inclined surface 20 so that the clamping stagnation phenomenon can not occur when the battery assembly box body is pulled out;
(6) And the physical structure is adopted to carry out energy division design, and meanwhile, a heat insulation material is used for protection, so that the heat diffusion risk of the system is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is a perspective view of the case of FIG. 1 with the case removed;
FIG. 3 is a schematic view of the structure of a power cell assembly;
Fig. 4 is a schematic structural view of a power cell pack;
FIG. 5 is a schematic view of the installation of a vertical duct;
FIG. 6 is a schematic view of the structure of a vertical duct;
FIG. 7 is a schematic view of the structure of the docking tube;
FIG. 8 is a schematic view of the mounting of a battery assembly to a support frame;
FIG. 9 is an exploded view of FIG. 8;
fig. 10 is a block diagram of another view of the slide rail.
In the figure: 1. the device comprises a shell, a positive electrode high-pressure box, a negative electrode high-pressure box, a control battery system box, a power battery pack, an air conditioning unit, a vertical air duct, a butt joint pipe, an air inlet, an air outlet, a fan, a sliding guide rail, a small roller, a large roller, a small bayonet, a large bayonet, a mounting plate and a mounting plate, wherein the positive electrode high-pressure box, the negative electrode high-pressure box, the control battery system box, the power battery pack, the air conditioning unit, the vertical air duct, the butt joint pipe, the air inlet, the air outlet, the air inlet and the air outlet are respectively arranged in sequence, the shell, the vertical air duct and the vertical air inlet and the air inlet are respectively arranged in sequence of the vertical air conditioning unit, the vertical air-power battery pack and the air-powered by the air-handling unit, the air-powered device, the air and the air 18, a first locking hole, 19, a second locking hole, 20, an inclined plane, 21, a conical sealing ring, 22, an air volume adjusting valve, 501, a battery cell module, 502, a battery cell, 503, a bus copper bar, 504, a module connecting copper bar, 505, a system positive electrode fuse, 506, a battery pack fuse, 507, a fuse wire group, 508, a battery cell protector, 509, a fuse wire.
Detailed Description
The invention will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The high-capacity battery system for the locomotive, as shown in fig. 1 to 10, comprises a battery assembly and a fusing protection assembly, wherein the fusing protection assembly improves the safety performance of the battery system; the battery assembly comprises a positive high-voltage box 2, a negative high-voltage box 3, a control battery system box body 4 and a power battery assembly; the power battery assembly comprises four power battery units connected in parallel, and each power battery unit is connected in series by eight power battery packs 5; the positive electrode of the power battery assembly is connected with the positive electrode high-voltage box 2, the output end of the positive electrode high-voltage box 2 is connected with the power utilization positive electrode end of the load, the negative electrode of the power battery assembly is connected with the negative electrode high-voltage box 3, and the negative electrode of the negative electrode high-voltage box 3 is connected with the negative electrode end of the load; the anode and the cathode of the control battery system box body 4 (comprising a control battery pack and control electric appliance components) are connected with low-voltage control equipment on the locomotive;
the power battery pack 5 includes a plurality of battery cell modules 501 connected in series;
the fusing protection component comprises a system positive electrode fuse 505, a battery pack fuse 506, a module connecting copper bar 504, a bus copper bar 503, a fuse wire set 507 and a battery cell protector 508;
The system positive fuse 505 is installed at two ends of each power battery unit in series; the battery pack fuse 506 is built into the power battery pack 5 and is in series with the cell module 501;
The battery cell module 501 comprises a plurality of battery cells 502 and a plurality of battery cell protectors 508, the battery cells 502 are arranged in parallel, the battery cell protectors 508 are installed at one end part of the battery cells 502 in series, and a bus copper bar 503 is installed at the outer side of the battery cell module 501 and connected with the battery cell module 501; the connection between two adjacent bus copper bars 503 and two adjacent cell modules 501 is completed through the connection of module connection copper bars 504;
the fuse wire group 507 comprises a plurality of fuse wires 509 which are connected in parallel, and the fuse wire group 507 is arranged between any two cell modules 501 in series;
The fusing current values of the fusing protection component are arranged according to the size: the system positive electrode fuse 505 is more than a battery pack fuse 506 is more than a module connection copper bar 504 is more than a bus copper bar 503 is more than a fuse 509 is more than a cell protector 508. And a 6-layer fusing safety design is adopted, and the fusing current values allowed to pass by different parts in the fusing protection assembly are different, so that the fusing current protection of each level is realized.
The system positive fuse 505 is installed in series at both ends of each power battery cell, the fusing current value is the smallest, and the fusing response time is the fastest, because it is installed at the outermost side of the system, and is convenient to replace after fusing.
The battery pack fuse 506 is built into the power battery pack 5 and connected in series with the cell module 501 for protecting the power battery pack 5 when the power battery pack 5 is shorted with other power battery packs 5, and the allowable fusing current value of the fusing current is smaller than that of the module connection copper bar 504 but larger than that of the system positive electrode fuse 505 so as to ensure that the battery pack fuse 506 preferentially acts when the power battery pack 5 is shorted.
The module connection copper bar 504 is a connection copper bar between the two cell modules 501, so that when a short circuit occurs between the cell modules 501 and the cell modules 501, the module connection copper bar 504 acts to protect the cell modules 501, and the allowable fusing current value of the module connection copper bar is smaller than that of the bus copper bar 503.
The cell 502 and the cell protector 508 are connected in series to form a component, a plurality of components are connected in parallel and then connected with the bus bar copper 503, the bus bar copper 503 is a flat copper bar, the bus bar copper 503 is used for protecting the cell 502 and the cell protector 508, and the current value of the melting current allowed to pass through the bus bar copper 503 is smaller than that of the fuse 509.
The fusible link 509 is mounted in a container having a similar shape to the cell 502, and then the fusible link group 507 is constituted by a plurality of such devices in parallel. The fuse 509 is designed to have a somewhat smaller fusing current than the cell protector 508, so that the layers of the cell protector 508 are ensured to be free from problems even after the fuse 509 is fused.
The cell protector 508 allows a lower amount of fuse current to pass than the cell 502, and when the circuit is shorted, the cell protector 508 fuses to protect the cell 502.
The battery system further has a housing 1 of a sealing structure, the battery assembly and the fuse protection assembly are built in the housing 1, and a supporting frame (not shown in the figure) for supporting the battery assembly is further provided in the housing 1. The supporting frame is provided with a flame-retardant heat-insulating pad (not shown in the figure), the flame-retardant heat-insulating pad isolates the positive high-voltage box 2, the negative high-voltage box 3, the control battery system box 4 and each power battery pack 5 independently, so that the safety performance of the positive high-voltage box 2, the negative high-voltage box 3, the control battery system box 4 and the power battery packs 5 is improved.
The battery system also comprises a heat radiation system, wherein the heat radiation system comprises an air conditioning unit 6 and a vertical air duct 7, the air conditioning unit 6 is externally arranged on the shell 1, the vertical air duct 7 is internally arranged on the shell 1, an air inlet hole 9 and an air outlet hole 10 are formed in the shell 1, the air outlet end of the air conditioning unit 6 is connected with the air inlet hole 9, the air inlet hole 9 is connected with the vertical air duct 7, and the air inlet end of the air conditioning unit 6 is connected with the air outlet hole 10; the vertical air duct 7 is provided with a plurality of butt joint pipes 8, and the butt joint pipes 8 are respectively in butt joint with the rear end of the box body of the battery assembly.
The top end of the vertical air channel 7 is connected with the air inlet 9 in a sealing way through a sealing gasket, and the bottom end of the vertical air channel 7 is a closed end. The rear end of the butt joint pipe 8 is connected with the vertical air duct 7, the front end of the butt joint pipe 8 is respectively connected with the box bodies of the battery assembly, an air quantity adjusting valve 22 for adjusting the air quantity of each box body is arranged in the butt joint pipe 8, and a conical sealing ring 21 is arranged at the front end of the butt joint pipe 8. The front end of the box body of the battery assembly is respectively provided with a fan 11 for extracting hot air in the box body.
Cold air in the air conditioning unit 6 enters a box body of the battery assembly after passing through the air inlet hole 9, the vertical air duct 7 and the butt joint pipe 8, and a heat dissipation procedure is carried out on components in the box body; then the fan 11 works to draw out the hot air in the box body, the hot air is discharged to the inner cavity of the shell 1, and then enters the air conditioning unit 6 through the air outlet 10 for circulation heat dissipation.
The battery component is connected with the supporting frame in a drawing way; the bottom end of the battery assembly is fixedly provided with a sliding guide rail 12 which slides along the supporting frame, the sliding guide rail 12 is provided with a small roller 13 and a large roller 14, and the small roller 13 and the large roller 14 are arranged in front and back; the supporting frame is provided with a small bayonet 15 and a large bayonet 16 corresponding to the small roller 13 and the large roller 14, and the front end and the rear end of the small bayonet 15 and the large bayonet 16 are respectively provided with an inclined surface 20.
The front end of the sliding guide rail 12 is provided with a first locking hole 18 fixed with the supporting frame, the rear end of the sliding guide rail 12 is vertically provided with a mounting plate 17, and the mounting plate 17 is provided with a second locking hole 19 fixed with the shell 1.
The battery assembly adopts a traction type box body structure, and can be pulled out of the box body from the front for maintenance. When the box body is pushed into the supporting frame, the sliding guide rail 12 slides along the supporting frame, and the large roller 14 can still be unobstructed when passing through the small bayonet 15. After the whole box body is pushed in place, the small idler wheels 13 and the large idler wheels 14 are respectively clamped into the small bayonet 15 and the large bayonet 16, and the supporting frame has clamping effect on the box body. Simultaneously, the front end and the rear end of the small bayonet 15 and the large bayonet 16 are respectively provided with an inclined surface 20 so that the clamping stagnation phenomenon can not occur when the box body is pulled out.
After the box body is pushed into place, the first locking hole 18 and the second locking hole 19 are internally provided with fastening pieces, so that the box body, the supporting frame and the shell 1 can be detached and firmly connected, and when maintenance is needed, the box body can be pulled only by detaching the mounting fastening pieces at the end part and the bottom.
The foregoing description is merely illustrative of specific embodiments of the invention, and the invention is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. A high-capacity battery system for a locomotive is characterized in that: the battery system comprises a battery assembly and a fusing protection assembly, wherein the fusing protection assembly improves the safety performance of the battery system; the battery assembly comprises a positive high-voltage box (2), a negative high-voltage box (3), a control battery system box body (4) and a power battery assembly; the power battery assembly comprises a plurality of power battery units connected in parallel, and the power battery units are connected in series by a plurality of power battery packs (5); the positive electrode of the power battery component is connected with a positive electrode high-voltage box (2), the output end of the positive electrode high-voltage box (2) is connected with the power utilization positive electrode end of the load, the negative electrode of the power battery component is connected with a negative electrode high-voltage box (3), and the negative electrode of the negative electrode high-voltage box (3) is connected with the negative electrode end of the load; the positive electrode and the negative electrode of the control battery system box body (4) are connected with low-voltage control equipment on the locomotive;
The power battery pack (5) is provided with a plurality of battery cell modules (501) which are connected in series;
The fusing protection assembly comprises a system positive electrode fuse (505), a battery pack fuse (506), a module connecting copper bar (504), a bus copper bar (503), a fuse wire group (507) and a battery core protector (508);
the system positive fuse (505) is arranged at two ends of each power battery unit in series; the battery pack fuse (506) is internally arranged in the power battery pack (5) and is connected with the battery cell module (501) in series;
The battery cell module (501) comprises a plurality of battery cells (502) and a plurality of battery cell protectors (508), the battery cells (502) are arranged in parallel, the battery cell protectors (508) are arranged at one end part of the battery cells (502) in series, and a bus copper bar (503) is arranged at the outer side of the battery cell module (501) and connected with the battery cell module (501); the two adjacent bus copper bars (503) are connected through a module connecting copper bar (504) to complete the connection of the two adjacent cell modules (501);
The fuse wire group (507) comprises a plurality of fuse wires (509) which are connected in parallel, and the fuse wire group (507) is arranged between any two cell modules (501) in series;
The fusing current values of the fusing protection component are arranged according to the size: the system positive electrode fuse (505) < battery pack fuse (506) < module connection copper bar (504) < bus copper bar (503) < fuse wire (509) < battery cell protector (508);
The battery system is also provided with a shell (1) with a sealing structure, the battery assembly and the fusing protection assembly are arranged in the shell (1), and a supporting frame for supporting the battery assembly is further arranged in the shell (1).
2. The high-capacity battery system for a locomotive according to claim 1, wherein: the battery system further comprises a heat radiation system, the heat radiation system comprises an air conditioning unit (6) and a vertical air duct (7), the air conditioning unit (6) is externally arranged on the shell (1), the vertical air duct (7) is internally arranged on the shell (1), an air inlet hole (9) and an air outlet hole (10) are formed in the shell (1), the air outlet end of the air conditioning unit (6) is connected with the air inlet hole (9), the air inlet hole (9) is connected with the vertical air duct (7), and the air inlet end of the air conditioning unit (6) is connected with the air outlet hole (10); a plurality of butt joint pipes (8) are arranged on the vertical air duct (7), and the butt joint pipes (8) are respectively in butt joint with the rear end of the box body of the battery assembly.
3. The high-capacity battery system for a locomotive according to claim 2, wherein: the top end of the vertical air channel (7) is connected with the air inlet (9) in a sealing way through a sealing gasket, and the bottom end of the vertical air channel (7) is a closed end.
4. The high-capacity battery system for a locomotive according to claim 2, wherein: the rear end of the butt joint pipe (8) is connected with the vertical air duct (7), the front end of the butt joint pipe (8) is respectively connected with the box body of the battery assembly, the butt joint pipe (8) is internally provided with a regulating valve for regulating the air inlet quantity of each box body, and the front end of the butt joint pipe (8) is provided with a conical sealing ring.
5. The high-capacity battery system for a locomotive according to claim 2, wherein: the front end of the box body of the battery assembly is respectively provided with a fan (11) for extracting hot air in the box body.
6. The high-capacity battery system for a locomotive according to claim 1, wherein: the battery component is connected with the supporting frame in a drawing way; a sliding guide rail (12) sliding along the supporting frame is fixedly arranged at the bottom end of the battery assembly, a small roller (13) and a large roller (14) are arranged on the sliding guide rail (12), and the small roller (13) and the large roller (14) are arranged in front and back; the supporting frame is provided with a small bayonet (15) and a large bayonet (16) corresponding to the small roller (13) and the large roller (14).
7. The high-capacity battery system for a locomotive according to claim 6, wherein: the front end of the sliding guide rail (12) is provided with a first locking hole (18) fixed with the supporting frame, the rear end of the sliding guide rail (12) is vertically provided with a mounting plate (17), and the mounting plate (17) is provided with a second locking hole (19) fixed with the shell (1).
8. The high-capacity battery system for a locomotive according to claim 6, wherein: inclined planes (20) are respectively arranged at the front end and the rear end of the small bayonet (15) and the large bayonet (16).
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| CN114039174B true CN114039174B (en) | 2024-05-24 |
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| CN115036651A (en) * | 2022-06-28 | 2022-09-09 | 海口安博尔能源技术开发有限公司 | Lithium ion battery energy storage system for industrial-grade water hydrogen production |
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