CN117559039A - Energy storage box body of integrated runner - Google Patents

Energy storage box body of integrated runner Download PDF

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Publication number
CN117559039A
CN117559039A CN202410034310.9A CN202410034310A CN117559039A CN 117559039 A CN117559039 A CN 117559039A CN 202410034310 A CN202410034310 A CN 202410034310A CN 117559039 A CN117559039 A CN 117559039A
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CN
China
Prior art keywords
plate
cooling
side plate
energy storage
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410034310.9A
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Chinese (zh)
Inventor
甘明
胡澄铭
王成
吴新祥
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Xintu Wuxi New Energy Technology Co ltd
Original Assignee
Xintu Wuxi New Energy Technology Co ltd
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Publication date
Application filed by Xintu Wuxi New Energy Technology Co ltd filed Critical Xintu Wuxi New Energy Technology Co ltd
Priority to CN202410034310.9A priority Critical patent/CN117559039A/en
Publication of CN117559039A publication Critical patent/CN117559039A/en
Pending legal-status Critical Current

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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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides an energy storage box body integrating a flow channel, which comprises a side plate, wherein the front side of the side plate is provided with a liquid inlet and a liquid outlet; the bottom cooling plate is arranged in the side plate, a buffer plate is extended at the joint of the side plate and the bottom cooling plate, and the bottom cooling plate is fixedly connected with the buffer plate through friction stir welding; the battery modules are arranged on the bottom cold plate in an array manner; the side cooling device comprises a plurality of side cooling plates positioned between two adjacent rows of battery modules, a liquid inlet pipe for communicating the liquid inlet with the side cooling plates, and a liquid collecting pipe for communicating the liquid outlet with the side cooling plates; the bottom cooling plate comprises a plurality of cooling areas which are connected in parallel, and each cooling area is provided with a plurality of sub-channels; the cooling temperature difference between different battery modules is reduced, the temperature balance of the battery modules is improved, and the service life of the energy storage box body is prolonged; the side cooling plate cools the side surface of the battery module, so that the heat dissipation uniformity of the battery module is ensured; the argon arc welding is changed into friction stir welding, so that the air tightness of the flow passage is improved.

Description

Energy storage box body of integrated runner
Technical Field
The invention relates to the technical field of battery energy storage boxes, in particular to an energy storage box integrating a flow channel.
Background
With the support of national and local energy storage related policies, the energy storage industry has developed rapidly in recent two years, wherein the development of the electrochemical energy storage industry is particularly rapid. The energy storage battery box is used as an important carrier of the electrochemical energy storage battery, and the technical routes of the energy storage battery box are various, and the energy storage battery box comprises a steel sheet metal box body, a steel stamping box body, an aluminum alloy casting box body, an aluminum alloy section bar box body and the like.
The aluminum profile is convenient to design into a closed cavity structure due to high degree of freedom of the section design, so that the aluminum profile is directly used as a cooling flow channel of a battery, and a box body adopting the structure is called an aluminum profile integrated flow channel box body. In practical application, the front end face and the rear end face of the box body of the aluminum profile integrated runner are required to be plugged, front and rear cross beams are required to be installed in the area of the upper part of the box body inner runner, and the existing box body is designed at the above position by adopting an argon arc welding process. The argon arc welding of the aluminum alloy is particularly easy to be influenced by water stain, greasy dirt, dust and organic matters on the surface of the material, and is also easy to be influenced by the material and thickness difference of the welded material, the environmental temperature, the environmental humidity, the technical level of a welder and other factors, so that the risk of generating defects is high. In the case of non-integrated flow channels, the argon arc welding process of aluminum alloy is widely used, but the damage degree of welding defects is low because the flow channels are not involved; in integrated runner boxes, welding defects can directly affect the integrity of the runner and the cooling effectiveness of the overall system.
In addition, the liquid cooling plate in the prior art can only cool the bottom surface of the battery module, and basically adopts an annular or serpentine flow channel, so that the temperature of the battery module close to the cooling liquid inlet is lower, the temperature of the battery module far away from the liquid inlet is higher, and therefore the temperature difference between different battery modules is larger, the temperature balance is affected, and the heat dissipation uniformity and the service life of the whole battery box body are prolonged.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an energy storage box body with an integrated flow channel, which is used for solving the problems of the prior art that the air tightness and the completion of the flow channel are affected by argon arc welding, the temperature difference between different battery modules is large, and the heat dissipation is uneven.
To achieve the above and other related objects, the present invention provides the following technical solutions:
an energy storage box body integrating a flow channel comprises a side plate, wherein the front side of the side plate is provided with a liquid inlet and a liquid outlet; the bottom cooling plate is arranged in the side plate, a buffer plate extends from the joint of the side plate and the bottom cooling plate, and the bottom cooling plate is fixedly connected with the buffer plate through friction stir welding; the battery modules are arranged on the bottom cooling plate in an array manner; the side cooling device comprises a plurality of side cooling plates positioned between two adjacent rows of battery modules, a liquid inlet pipe for communicating a liquid inlet with the side cooling plates, and a liquid collecting pipe for communicating a liquid outlet with the side cooling plates; the bottom cooling plate comprises a plurality of cooling areas which are connected in parallel, each cooling area is provided with a plurality of sub-channels, the sub-channels are communicated with the liquid inlet through a main channel, and the sub-channels are communicated with the liquid outlet through a return channel; and cooling liquid enters the main runner through the liquid inlet, enters the sub-runner, and then is converged into the return runner and is discharged from the liquid outlet so as to cool the bottom surface of the battery template.
According to the technical scheme, the buffer plate extends out of the joint of the side plate and the bottom cold plate, the buffer plate is a non-flow passage area, a certain needle raising and retracting space is provided for friction stir welding, argon arc welding is omitted from design for plugging a flow passage, the front and rear plugging structure of the aluminum profile flow passage is changed from argon arc welding into friction stir welding through a plug, and the air tightness of the flow passage and the strength after welding are improved; the setting of a plurality of parallelly connected cooling zones can effectually reduce the cooling difference between the battery module of difference, improves battery module's life, and a plurality of parallelly connected side cold plates that set up on the feed liquor pipe can cool down battery module's side to improve battery module's cooling effect of cooling. The bottom of the battery module is cooled through the bottom cold plate, and the side face of the battery module is cooled through the side cold plate, so that the overall heat dissipation effect and heat dissipation uniformity of the battery module are effectively guaranteed.
In an embodiment of the invention, the side cooling plate includes a converging channel, a collecting channel and a plurality of branch channels communicating the converging channel and the collecting channel; the cooling liquid enters the liquid inlet pipe through the liquid inlet, enters the branch flow passage through the converging passage, then flows through the converging passage, enters the liquid collecting pipe, and is discharged through the liquid outlet, so that the side face of the battery template is cooled.
According to the technical scheme, the plurality of branch flow passages can uniformly cool the side faces of the battery modules, and the temperature difference between different battery modules can be effectively reduced through the arrangement of the plurality of branch flow passages.
In an embodiment of the present invention, temperature sensing deformation elements are disposed in the sub-channels and the sub-channels, and the temperature sensing deformation elements deform according to the temperature of the cooling liquid flowing through the sub-channels.
According to the technical scheme, the temperature-sensing deformation element can change the sectional area of the flow channel according to the temperature of the flowing cooling liquid, so that the flow direction of the cooling liquid is changed, the temperature balance between each sub-flow channel and each sub-flow channel is ensured, the temperature difference between each battery module is effectively reduced, and the service life of the battery module is prolonged.
In an embodiment of the present invention, the side plates are composed of a front side plate, a rear side plate, a left side plate and a right side plate, a front cross beam is connected between the left side plate and the right side plate, a mounting ear extends on the front cross beam, and the mounting ear is mounted on a buffer plate near one end of the front side plate through a rivet.
According to the technical scheme, the battery module is arranged between the front cross beam and the rear cross beam, and welding on the bottom cold plate can be avoided through the installation lugs and the rivet, so that the leakage risk of the flow channel is fundamentally reduced.
In an embodiment of the invention, a fire control device is arranged above the battery module, and the fire control device is connected with a plurality of fire extinguishing devices through fire extinguishing lines; the fire control device comprises a temperature sensor, a smoke sensor, a control module and a communication module.
The fire control device comprises a temperature sensor, a smoke sensor, a control module and a communication module, wherein the fire control device can automatically start the fire extinguishing device when a fire occurs in the energy storage box body, and an alarm is sent to the terminal through the communication module. The fire extinguishing device can be a hot aerosol fire extinguishing device or a perfluorinated hexanone fire extinguishing device, and when the perfluorinated hexanone contacts a fire source, the perfluorinated hexanone can be gasified instantly and forms a suppression effect, so that the temperature of a fire scene is reduced rapidly, and the fire disaster of the battery box is effectively extinguished; when the hot aerosol is sprayed out, a uniform coating layer is formed around the fire source, so that the flame cannot contact oxygen in the air to be extinguished. Meanwhile, the hot aerosol can absorb a large amount of heat in the spraying process, so that the temperature of a fire scene is effectively reduced, and the fire extinguishing efficiency is further improved.
In an embodiment of the present invention, a rear beam is disposed between the left side plate and the right side plate at an end near the rear side plate, and the rear beam is fixed on the buffer plate.
Realize above-mentioned technical scheme, the rear cross beam can play the effect of support, through the setting of buffer board, and the rear cross beam can effectually avoid the cold board region in the end, prevents that the rear cross beam from welding on the cold board in the end, influences the leakproofness of cold board in the end.
In an embodiment of the present invention, a window is formed on the front side plate, a cover plate is disposed on the window, and an explosion-proof valve is disposed on the cover plate.
Realize above-mentioned technical scheme, explosion-proof valve can be in the energy storage box excessive pressure or when the temperature is too high, opens the high-pressure high-temperature gas of inside directly to give off to reach explosion-proof purpose, can set up BMS in the window, BMS includes battery state collection, battery state estimation, energy management, information management etc. function, can monitor battery module's state, prevent that battery module from appearing overcharging and overdischarging to extend battery module's life.
In an embodiment of the invention, handles are provided on the left side plate and the right side plate, clamping grooves are provided on the handles, and end plates are provided on the front and rear sides of the battery module.
Realize above-mentioned technical scheme, the effectual intensity that improves the handle of integrated into one piece between handle and the curb plate, the setting of handle can be convenient for the staff maintain, and the draw-in groove can fix a position the box, perhaps carries out the joint between with adjacent box, and the setting of end plate can protect battery module not receive harm such as vibration, impact, prolongs battery module's life.
In an embodiment of the invention, an insulating sheet is disposed between two adjacent battery modules.
By means of the technical scheme, the insulating sheet can isolate and protect adjacent battery modules, and short-circuit fire problems and the like of the battery modules are prevented.
In an embodiment of the invention, the front side plate is provided with a positive electrode socket and a negative electrode socket.
According to the technical scheme, the positive electrode socket is connected with the positive electrode of the battery module through the positive electrode copper bar, and the negative electrode socket is connected with the negative electrode of the battery module through the negative electrode copper bar.
As described above, the energy storage box body integrated with the runner has the following beneficial effects:
(1) The buffer plate is arranged in a non-flow passage area and is used for giving a certain space for starting and narrowing the flow passage through extending out of the joint of the side plate and the bottom cold plate, argon arc welding is cancelled from design, welding wires are not needed during welding due to the fact that the welding temperature is relatively low, and the welding process is relatively closed, so that strength is higher compared with that of argon arc welding after welding, and air tightness of the flow passage is better.
(2) The bottom cooling plate is provided with a plurality of cooling areas which are connected in parallel, and the cooling areas are provided with a plurality of sub-channels, so that the cooling temperature difference between different battery modules is effectively reduced, the temperature balance of the battery modules is improved, and the service life of the energy storage box body is prolonged.
(3) Through set up the side cold plate between two adjacent rows of battery module, can cool down battery module's side to improve battery module's cooling effect, guarantee battery module's heat dissipation homogeneity.
(4) The temperature sensing deformation elements are arranged in the diversion channel and the branch channel, and can deform according to the temperature of the cooling liquid, so that the sectional area of the channel is changed, the flow direction of the cooling liquid is changed, and the temperature difference between each battery module is effectively reduced.
(5) The front cross beam is provided with the mounting lugs in an extending mode, the front cross beam is arranged on the buffer plate through rivets, the front cross beam is prevented from being welded on the bottom cooling plate, and therefore the risk of leakage of the runner is fundamentally reduced.
(6) The fire control device is arranged to extinguish the fire source when the fire occurs, so that the fire risk is reduced.
(7) The explosion-proof valve can automatically open to directly emit high-pressure high-temperature gas inside when the overpressure or the temperature in the energy storage box body is too high, so that the explosion-proof purpose is achieved.
Drawings
Fig. 1 shows a schematic structure of the present invention.
Fig. 2 shows a top view of the case body.
Fig. 3 is a schematic structural view of the case body.
Fig. 4 shows a schematic view of the flow channels inside the bottom cold plate.
Fig. 5 shows a schematic structure of a side cooling device.
Fig. 6 shows a schematic view of the internal flow channel structure of the side cooling plate.
Fig. 7 is a schematic diagram of a fire control device.
Description of element reference numerals
1. A liquid inlet; 2. a liquid outlet; 3. a bottom cooling plate; 4. a buffer plate; 5. a battery module; 6. a side cooling plate; 7. a liquid inlet pipe; 8. a liquid collecting pipe; 9. a cooling zone; 10. a sub-runner; 11. a main flow passage; 12. a return channel; 13. a converging channel; 14. a collecting channel; 15. a branch flow passage; 16. a temperature-sensitive deformation element; 17. a front side plate; 18. a rear side plate; 19. a left side plate; 20. a right side plate; 21. a front cross member; 22. a mounting ear; 23. a rivet; 24. a fire control device; 25. fire wire is extinguished; 26. a fire extinguishing device; 27. a rear cross member; 28. a window; 29. a cover plate; 30. an explosion-proof valve; 31. a handle; 32. a clamping groove; 33. an end plate; 34. a positive electrode socket port; 35. a negative electrode socket.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
Referring to fig. 1 to 7, the present invention provides an energy storage box body with an integrated flow channel, which comprises a side plate, wherein a liquid inlet 1 and a liquid outlet 2 are arranged at the front side of the side plate; the bottom cooling plate 3 is arranged in the side plate, a buffer plate 4 extends at the joint of the side plate and the bottom cooling plate 3, and the bottom cooling plate 3 is fixedly connected with the buffer plate 4 through friction stir welding; a plurality of battery modules 5 arranged in an array on the bottom cooling plate 3; the side cooling device comprises a plurality of side cooling plates 6 positioned between two adjacent rows of battery modules 5, a liquid inlet pipe 7 for communicating the liquid inlet 1 with the side cooling plates 6, and a liquid collecting pipe 8 for communicating the liquid outlet 2 with the side cooling plates 6; the bottom cooling plate 3 comprises a plurality of cooling areas 9 which are connected in parallel, each cooling area 9 is provided with a plurality of flow dividing channels 10, the flow dividing channels 10 are communicated with the liquid inlet 1 through a main flow channel 11, and the flow dividing channels 10 are communicated with the liquid outlet 2 through a return flow channel 12; the cooling liquid enters the main runner 11 through the liquid inlet 1, then enters the sub runner 10, then enters the return runner 12 and is discharged from the liquid outlet 2, so that the bottom surface of the battery template is cooled.
According to the method, the buffer plate 4 extends out of the joint of the side plate and the bottom cold plate 3, the buffer plate 4 is a non-flow passage area, a certain needle raising and retracting space is provided for friction stir welding, argon arc welding is omitted from design for plugging a flow passage, the front and rear plugging structure of an aluminum profile flow passage is changed from argon arc welding into friction stir welding through a plug, and the air tightness of the flow passage and the strength after welding are improved; the setting of a plurality of parallelly connected cooling zones 9 can effectually reduce the cooling difference between the battery module 5 of difference, improves battery module 5's life, and a plurality of parallelly connected side cold plates 6 that set up on feed liquor pipe 7 can cool down battery module 5's side to improve battery module 5's cooling effect of cooling. The bottom of the battery module 5 is cooled through the bottom cooling plate 3, and the side surface of the battery module 5 is cooled through the side cooling plate 6, so that the overall heat dissipation effect and heat dissipation uniformity of the battery module 5 are effectively ensured.
The side cooling plate 6 comprises a converging channel 13, a collecting channel 14 and a plurality of branch channels 15 which are communicated with the converging channel 13 and the collecting channel 14; the cooling liquid enters the liquid inlet pipe 7 through the liquid inlet 1, enters the branch flow passage 15 through the flow collecting passage 13, then flows through the flow collecting passage 14, enters the liquid collecting pipe 8 and is discharged through the liquid outlet 2, so that the side face of the battery template is cooled. The side faces of the battery modules 5 can be uniformly cooled by the plurality of branch flow passages 15, and the temperature difference between different battery modules 5 can be effectively reduced by the arrangement of the plurality of branch flow passages 15.
The branch flow passage 10 and the branch flow passage 15 are provided with temperature-sensitive deformation elements 16, and the temperature-sensitive deformation elements 16 deform according to the temperature of the coolant flowing therethrough. The temperature-sensing deformation element 16 can change the sectional area of the flow channel according to the temperature of the flowing cooling liquid, so as to change the flow direction of the cooling liquid, ensure the temperature balance between each sub-flow channel 10 and the sub-flow channel 15, effectively reduce the temperature difference between each battery module 5, and improve the service life of the battery module 5.
The side plates consist of a front side plate 17, a rear side plate 18, a left side plate 19 and a right side plate 20, a front cross beam 21 is connected between the left side plate 19 and the right side plate 20, a mounting lug 22 extends on the front cross beam 21, and the mounting lug 22 is mounted on the buffer plate 4 close to one end of the front side plate 17 through a rivet 23. The battery module 5 is arranged between the front beam 21 and the rear beam 27, and welding on the bottom cold plate 3 can be avoided through the arrangement of the mounting lugs 22 and the rivets 23, so that the leakage risk of the flow passage is fundamentally reduced.
A fire control device 24 is arranged above the battery module 5, and the fire control device 24 is connected with a plurality of fire extinguishing devices 26 through fire extinguishing wires 25; the fire control device 24 includes a temperature sensor, a smoke sensor, a control module, and a communication module.
The fire control device 24 includes a temperature sensor, a smoke sensor, a control module and a communication module, and can automatically start the fire extinguishing device 26 when a fire occurs in the energy storage box, and alarm the terminal through the communication module. The fire extinguishing device 26 can be a hot aerosol fire extinguishing device 26 or a perfluorinated hexanone fire extinguishing device 26, and when the perfluorinated hexanone contacts a fire source, the fire extinguishing device can be gasified instantly and form a suppression effect, so that the temperature of a fire scene is reduced rapidly, and the fire of the battery box is extinguished effectively; when the hot aerosol is sprayed out, a uniform coating layer is formed around the fire source, so that the flame cannot contact oxygen in the air to be extinguished. Meanwhile, the hot aerosol can absorb a large amount of heat in the spraying process, so that the temperature of a fire scene is effectively reduced, and the fire extinguishing efficiency is further improved.
A rear cross member 27 is disposed between the left side plate 19 and the right side plate 20 at one end near the rear side plate 18, and the rear cross member 27 is fixed on the buffer plate 4. The rear cross beam 27 can play the effect of supporting, through the setting of buffer board 4, the rear cross beam 27 can effectually avoid the cold board 3 region in the bottom, prevents that rear cross beam 27 from welding on the cold board 3 in the bottom, influences the leakproofness of cold board 3 in the bottom.
The front side plate 17 is provided with a window 28, the window 28 is provided with a cover plate 29, and the cover plate 29 is provided with an explosion-proof valve 30. The explosion-proof valve 30 can automatically open to directly emit the high-pressure high-temperature gas inside when the overvoltage or the temperature is too high in the energy storage box body, so that the explosion-proof purpose is achieved, the BMS can be arranged in the window 28, and comprises the functions of battery state collection, battery state estimation, energy management, information management and the like, the state of the battery module 5 can be monitored, and the battery module 5 is prevented from being overcharged and overdischarged, so that the service life of the battery module 5 is prolonged.
The left side plate 19 and the right side plate 20 are provided with handles 31, the handles 31 are provided with clamping grooves 32, and the front side and the rear side of the battery module 5 are provided with end plates 33. The intensity of handle 31 is effectual improvement as integrated into one piece between handle 31 and the curb plate, and the setting of handle 31 can be convenient for the staff maintain, and draw-in groove 32 can fix a position the box, perhaps carries out the joint between the adjacent box, and the setting of end plate 33 can protect battery module 5 from harm such as vibration, impact, prolongs battery module 5's life.
An insulating sheet is provided between two adjacent battery modules 5. The insulating sheet can isolate and protect the adjacent battery modules 5, and prevent the battery modules 5 from short-circuit fire and other problems. The front side plate 17 is provided with a positive electrode socket 34 and a negative electrode socket 35. The positive electrode socket port 34 is connected to the positive electrode of the battery module 5 through a positive electrode copper bar, and the negative electrode socket port 35 is connected to the negative electrode of the battery module 5 through a negative electrode copper bar.
According to the invention, the buffer plate 4 extends out of the joint of the side plate and the bottom cold plate 3, the buffer plate 4 is a non-flow passage area, and a certain needle raising and retracting space is provided for friction stir welding, so that argon arc welding is cancelled from the design for plugging a flow passage, and the friction stir welding does not need welding wires due to relatively low welding temperature and relatively closed welding process, so that the strength is higher compared with that of the argon arc welding after welding, and the air tightness of the flow passage is better; a plurality of cooling areas 9 which are connected in parallel are arranged on the bottom cooling plate 3, a plurality of sub-channels 10 are arranged in the cooling areas 9, so that cooling temperature difference between different battery modules 5 is effectively reduced, temperature balance of the battery modules 5 is improved, and service life of the energy storage box body is prolonged; through set up side cold plate 6 between two adjacent rows of battery module 5, can cool down battery module 5's side to improve battery module 5's cooling effect, guarantee battery module 5's heat dissipation homogeneity.
The temperature-sensing deformation elements 16 are arranged in the diversion channel 10 and the branch channel 15, so that the temperature-sensing deformation elements can deform according to the temperature of the cooling liquid, thereby changing the sectional area of the flow channel and the flow direction of the cooling liquid, and effectively reducing the temperature difference between the battery modules 5; the front beam 21 is provided with the mounting lugs 22 in an extending mode, the front beam 21 is arranged on the buffer plate 4 through the rivets 23, and the front beam 21 is prevented from being welded on the bottom cold plate 3, so that the risk of leakage of a runner is fundamentally reduced; the fire control device 24 can be used for extinguishing the fire source when the fire happens, so that the fire risk is reduced; the explosion-proof valve 30 can automatically open to directly emit the high-pressure high-temperature gas inside when the overpressure or the temperature in the energy storage box body is too high, thereby achieving the purpose of explosion prevention.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. It is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention be accomplished by those of ordinary skill in the art without departing from the spirit and scope of the invention as disclosed herein.

Claims (10)

1. An energy storage tank integrating a flow channel, comprising:
the front side of the side plate is provided with a liquid inlet (1) and a liquid outlet (2);
the bottom cooling plate (3) is arranged in the side plate, a buffer plate (4) extends at the joint of the side plate and the bottom cooling plate (3), and the bottom cooling plate (3) is fixedly connected with the buffer plate (4) through friction stir welding;
a plurality of battery modules (5) which are arranged on the bottom cooling plate (3) in an array manner;
the side cooling device comprises a plurality of side cooling plates (6) positioned between two adjacent rows of battery modules (5), a liquid inlet pipe (7) for communicating the liquid inlet (1) with the side cooling plates (6), and a liquid collecting pipe (8) for communicating the liquid outlet (2) with the side cooling plates (6);
the bottom cooling plate (3) comprises a plurality of cooling areas (9) which are connected in parallel, each cooling area (9) is provided with a plurality of sub-runners (10), the sub-runners (10) are communicated with the liquid inlet (1) through a main runner (11), and the sub-runners (10) are communicated with the liquid outlet (2) through a return runner (12);
the cooling liquid enters the main runner (11) through the liquid inlet (1), then enters the sub-runner (10), and then enters the return runner (12) and is discharged from the liquid outlet (2) so as to cool the bottom surface of the battery template.
2. The energy storage tank of claim 1, wherein: the side cooling plate (6) comprises a converging channel (13), a converging channel (14) and a plurality of branch channels (15) communicated with the converging channel (13) and the converging channel (14);
the cooling liquid enters the liquid inlet pipe (7) through the liquid inlet (1), enters the branch flow passage (15) through the flow collecting passage (13), then flows through the flow collecting passage (14) to enter the liquid collecting pipe (8) and is discharged through the liquid outlet (2), and then the side face of the battery template is cooled.
3. The energy storage tank of claim 2, wherein: the branch flow channel (10) and the branch flow channel (15) are internally provided with temperature-sensing deformation elements (16), and the temperature-sensing deformation elements (16) deform according to the temperature of the flowing cooling liquid.
4. The energy storage tank of claim 1, wherein: the side plate comprises a front side plate (17), a rear side plate (18), a left side plate (19) and a right side plate (20), a front cross beam (21) is connected between the left side plate (19) and the right side plate (20), mounting lugs (22) extend on the front cross beam (21), and the mounting lugs (22) are mounted on a buffer plate (4) close to one end of the front side plate (17) through rivets (23).
5. The energy storage tank of claim 1, wherein: a fire control device (24) is arranged above the battery module (5), and the fire control device (24) is connected with a plurality of fire extinguishing devices (26) through fire extinguishing wires (25);
the fire control device (24) comprises a temperature sensor, a smoke sensor, a control module and a communication module.
6. The energy storage tank of claim 4 wherein: a rear cross beam (27) is arranged between the left side plate (19) and the right side plate (20) and close to one end of the rear side plate (18), and the rear cross beam (27) is fixed on the buffer plate (4).
7. The energy storage tank of claim 4 wherein: the front side plate (17) is provided with a window (28), the window (28) is provided with a cover plate (29), and the cover plate (29) is provided with an explosion-proof valve (30).
8. The energy storage tank of claim 4 wherein: the left side plate (19) and the right side plate (20) are provided with handles (31), the handles (31) are provided with clamping grooves (32), and the front side and the rear side of the battery module (5) are provided with end plates (33).
9. The energy storage tank of claim 1, wherein: an insulating sheet is arranged between two adjacent battery modules (5).
10. The energy storage tank of claim 4 wherein: the front side plate (17) is provided with a positive electrode socket (34) and a negative electrode socket (35).
CN202410034310.9A 2024-01-10 2024-01-10 Energy storage box body of integrated runner Pending CN117559039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410034310.9A CN117559039A (en) 2024-01-10 2024-01-10 Energy storage box body of integrated runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410034310.9A CN117559039A (en) 2024-01-10 2024-01-10 Energy storage box body of integrated runner

Publications (1)

Publication Number Publication Date
CN117559039A true CN117559039A (en) 2024-02-13

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CN202410034310.9A Pending CN117559039A (en) 2024-01-10 2024-01-10 Energy storage box body of integrated runner

Country Status (1)

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CN (1) CN117559039A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111710933A (en) * 2019-03-18 2020-09-25 上汽通用汽车有限公司 Battery pack and vehicle with same
CN112736324A (en) * 2021-01-18 2021-04-30 福建易动力电子科技股份有限公司 Take laminate polymer battery system of liquid cooling
CN215266447U (en) * 2021-06-15 2021-12-21 江苏天钧精密技术有限公司 New energy automobile battery liquid cooling system of integrated function of putting out a fire
CN216288610U (en) * 2021-04-29 2022-04-12 无锡威唐新能源科技有限公司 Integrated liquid cooling battery package lower box
CN219371129U (en) * 2023-03-13 2023-07-18 中能建储能科技(武汉)有限公司 Liquid cooling energy storage subrack
CN117423931A (en) * 2023-10-25 2024-01-19 奇瑞新能源汽车股份有限公司 No module liquid cooling battery package and new energy automobile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111710933A (en) * 2019-03-18 2020-09-25 上汽通用汽车有限公司 Battery pack and vehicle with same
CN112736324A (en) * 2021-01-18 2021-04-30 福建易动力电子科技股份有限公司 Take laminate polymer battery system of liquid cooling
CN216288610U (en) * 2021-04-29 2022-04-12 无锡威唐新能源科技有限公司 Integrated liquid cooling battery package lower box
CN215266447U (en) * 2021-06-15 2021-12-21 江苏天钧精密技术有限公司 New energy automobile battery liquid cooling system of integrated function of putting out a fire
CN219371129U (en) * 2023-03-13 2023-07-18 中能建储能科技(武汉)有限公司 Liquid cooling energy storage subrack
CN117423931A (en) * 2023-10-25 2024-01-19 奇瑞新能源汽车股份有限公司 No module liquid cooling battery package and new energy automobile

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