CN116937005A - Liquid cooling energy storage battery cluster - Google Patents
Liquid cooling energy storage battery cluster Download PDFInfo
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- CN116937005A CN116937005A CN202311178747.1A CN202311178747A CN116937005A CN 116937005 A CN116937005 A CN 116937005A CN 202311178747 A CN202311178747 A CN 202311178747A CN 116937005 A CN116937005 A CN 116937005A
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- liquid
- battery
- energy storage
- pipe
- heat exchange
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- 239000007788 liquid Substances 0.000 title claims abstract description 137
- 238000004146 energy storage Methods 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 239000004744 fabric Substances 0.000 claims abstract 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract 7
- 241001330002 Bambuseae Species 0.000 claims abstract 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract 7
- 239000011425 bamboo Substances 0.000 claims abstract 7
- 239000003507 refrigerant Substances 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 10
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims 1
- 239000003570 air Substances 0.000 abstract description 19
- 239000012080 ambient air Substances 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 12
- 238000000429 assembly Methods 0.000 description 12
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- H01M10/61—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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
- H01M10/6554—Rods or plates
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
Abstract
The invention discloses a liquid cooling energy storage battery cluster, which comprises: the energy storage bin section of thick bamboo, forced air cooling radiating component, group battery and cloth liquid subassembly and with each group battery electric connection's transformer group, the inboard of energy storage bin section of thick bamboo has cup jointed the battery grudging post, and the surface of battery grudging post is equipped with the joint and is fixed with a plurality of cutting ferrule seats that are used for fixed group battery, and the liquid storage bucket has been cup jointed to the inboard of battery grudging post, and the quantity of cloth liquid subassembly is a plurality of and be circumferencial direction evenly distributed in battery grudging post periphery and be located the inboard of energy storage bin section of thick bamboo. According to the invention, through arranging the novel circumferential distribution structure, the circumferential distribution of the liquid distribution components is carried out by utilizing the battery stand and the plurality of clamping sleeve seats on the surface of the battery stand, and the circuit connection is realized between the liquid distribution components and the heat exchange disc and the liquid storage barrel under the connection of the liquid distribution components, so that the equal pipeline connection distance between the battery packs is ensured, the internal liquid flow pressure difference is stable, the temperature of the ambient air flow entering the inside of the energy storage bin barrel can be reduced, and the ambient temperature in the energy storage bin barrel is integrally controlled.
Description
Technical Field
The invention relates to the technical field of energy storage batteries, in particular to a liquid cooling energy storage battery cluster.
Background
Electric energy storage systems are evolving towards high voltages, large capacities, clusters, and scales, thus placing higher demands on both energy storage system capacity and lifetime. The battery cluster is typically composed of a plurality of module sockets (battery PACK), high voltage boxes, air ducts, and the like. Because the energy storage multiplying power requirement is higher and higher, the battery cell also develops towards high capacity, and therefore the heat quantity of the battery PACK becomes larger, the overheat phenomenon of the battery cell is very easy to occur in the fast charge and fast discharge or high temperature environment of the energy storage system, and the traditional air cooling technology can not meet the heat exchange and cooling requirements of the battery cluster due to the updated development of the battery safety and battery thermal management technology which are increasingly emphasized.
The existing energy storage battery mainly adopts a split type layout structure, a special frame body or a cabinet body structure is utilized for installing and arranging battery packs, built-in pipelines are arranged on each battery pack and are connected with a total water cooling and cooling assembly for liquid cooling, in the split type layout work of the split type energy storage battery, circuit pipeline connection is complex, integration level is low, cold liquid flows in the pipelines are mutually interfered, the refrigeration and cooling effects among battery packs are uneven, the battery packs far away from the cold liquid pumping structure are prone to overheat, and in addition, the split type layout structure is large in occupied space, low in utilization rate and multiple in defects. In view of the above, the present invention provides a liquid-cooled energy storage battery cluster, which solves the existing problems and aims to solve the problems and improve the practical value by the technology.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a liquid-cooled energy storage battery cluster comprising: the energy storage bin barrel, the air cooling heat dissipation assembly, the battery pack, the liquid distribution assembly and the transformer pack electrically connected with each battery pack, wherein a battery vertical frame is sleeved on the inner side of the energy storage bin barrel, a plurality of clamping sleeve seats for fixing the battery pack are fixedly arranged on the surface of the battery vertical frame in a clamping manner, a liquid storage barrel is sleeved on the inner side of the battery vertical frame, the liquid distribution assemblies are uniformly distributed on the periphery of the battery vertical frame in the circumferential direction and are positioned on the inner side of the energy storage bin barrel, a plurality of air inlet grids facing the surfaces of the liquid distribution assemblies are arranged on the surface of the energy storage bin barrel, the liquid distribution assemblies and the clamping sleeve seats are uniformly distributed in a plurality of groups, and each group of liquid distribution assemblies are vertically and sequentially arranged and positioned between the adjacent liquid distribution assemblies;
the air-cooled heat dissipation assembly comprises a heat exchange disc and a fan fixed on the top surface of the heat exchange disc, the heat exchange disc is fixedly arranged on the top surface of the battery vertical frame, the battery pack comprises a battery pack and liquid collecting and distributing plates positioned on two sides of the battery pack, a plurality of electric cores are sleeved on the inner side of the battery pack, a plurality of sub-runners positioned on two sides of the battery pack are arranged on the surface of the battery pack, two ends of the sub-runners are respectively communicated with the inner parts of the liquid collecting and distributing plates on two sides, the liquid distribution assembly comprises a main runner, a liquid distribution sub-pipe and a plurality of heat exchange fin plates sleeved on the surface of the liquid distribution sub-pipe, a liquid inlet end pipe is arranged at the bottom end of the main runner, a circulating pump fixed on the inner side of the liquid storage barrel is communicated with the other end of the liquid inlet end pipe, the end of the liquid distribution sub-pipe is communicated with ports of the two-communicating flanges, communicating pipes positioned on the surfaces of the two sides of the liquid collecting and distributing plates are respectively communicated with the liquid outlet end pipe and the heat exchange disc, the inner side of the liquid storage barrel is provided with a refrigerant coil, and the end of the refrigerant is communicated with a compression device positioned on the outer side of the energy storage bin.
The present invention may be further configured in a preferred example to: the inside of liquid storage barrel is filled with coolant, and coolant liquid level is higher than the top surface of refrigerant coil pipe, the refrigerant coil pipe is heliciform metal copper pipe structure, and the inside of refrigerant coil pipe is filled with the coolant liquid with compression refrigeration plant intercommunication.
The present invention may be further configured in a preferred example to: the inside of the main flow passage is of a cavity structure, and a plurality of liquid distribution branch pipes are communicated with the inner cavity of the main flow passage through double-pass flanges and are arranged in a zigzag shape.
The present invention may be further configured in a preferred example to: the liquid distribution branch pipes and the heat exchange fin plates are metal members, and the heat exchange fin plates are uniformly distributed on the surfaces of the liquid distribution branch pipes and are arranged in parallel with the air inlet direction of the air inlet grille.
The present invention may be further configured in a preferred example to: the heat exchange plate comprises a cooling pipe and a plurality of fin structures positioned on the surface of the cooling pipe, the cooling pipe is in planar spiral arrangement, the surface of the cooling pipe is provided with a plurality of liquid inlet holes, and the liquid inlet holes are communicated with communicating pipes on one side of each battery pack through pipeline structures.
The present invention may be further configured in a preferred example to: the battery package is a metal aluminum material component, and a heat conduction silicone grease layer attached to the surface of the battery cell is smeared on the inner side of the battery package.
The present invention may be further configured in a preferred example to: the end part of the communicating pipe is provided with a control valve, and the end part of the control valve is connected with the communicating pipe through a quick connector.
The present invention may be further configured in a preferred example to: the current distribution plate is characterized in that the current distribution plate and the battery pack are of an integrated structure, a plurality of connecting plugs matched with the inner sides of the current distribution channels are arranged on the surface of the current distribution plate, an electrode groove for connecting the battery cell electrode with a wiring is formed in the surface of the current distribution plate, and the electrode end of the battery cell is electrically connected with the input end of the transformer set.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, through arranging a novel circumferential distribution structure, the circumferential distribution of the liquid distribution components is carried out by utilizing the battery stand and the plurality of clamping sleeve seats on the surface of the battery stand, and the circuit connection is realized between the liquid distribution components and the heat exchange disc and the liquid storage barrel under the connection of the liquid distribution components, so that the equal pipeline connection distance between the battery packs is ensured, the internal liquid flow pressure difference is stable, the cooling treatment can be carried out on the ambient air flow entering the inside of the energy storage bin barrel, the ambient temperature in the energy storage bin barrel is integrally controlled, the balanced refrigeration cooling of the plurality of liquid distribution components is realized, the space utilization rate is improved, and the energy storage cost is reduced.
2. According to the invention, through the integrated refrigeration of the heat exchange disc and the fan, during the low peak period of energy storage, negative pressure in the energy storage bin barrel can be led in cold air from the outside to perform air cooling on the battery pack and the liquid distribution assembly, and a low-temperature environment in the energy storage bin barrel is created to realize balanced cooling, and the temperature of cooling liquid in the whole battery cluster can be reduced through the exchange and circulation of the cooling liquid in the liquid storage barrel and the refrigerant of external compression refrigeration equipment during the energy storage peak period, so that the battery pack is suitable for working in various periods and energy consumption is reduced.
3. According to the invention, by arranging the novel battery pack structure, the surface heat dissipation area is increased by sleeving the battery pack, the whole cooling of the battery pack and the internal battery cells is realized by flowing the cooling liquid in the sub-channels on the surface of the battery pack, the cooling effect is improved, and the single battery pack can be quickly disassembled and assembled for maintenance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of an energy storage cartridge and its internal structure according to an embodiment of the present invention;
fig. 3 is a schematic view showing an exploded structure of a surface structure of a battery stand according to an embodiment of the present invention;
FIG. 4 is a schematic view showing an internal structure of a liquid storage barrel according to an embodiment of the present invention;
FIG. 5 is a schematic view of a battery pack and ferrule holder mounting structure according to one embodiment of the present invention;
fig. 6 is a schematic view illustrating an exploded structure of a battery pack according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a liquid distribution assembly according to an embodiment of the present invention.
Reference numerals:
100. an energy storage bin; 110. an air intake grille; 120. a battery stand; 130. a cutting sleeve seat; 140. a liquid storage barrel; 141. a circulation pump; 142. a refrigerant coil;
200. an air-cooled heat dissipation assembly; 210. a heat exchange plate; 220. a blower;
300. a battery pack; 310. a battery sheath; 320. a liquid collecting and distributing plate; 330. a battery cell; 311. a sub-runner; 321. a communicating pipe;
400. a liquid distribution component; 410. a main flow channel; 420. distributing liquid and separating pipes; 430. a heat exchange fin plate; 411. a liquid inlet end pipe; 412. a two-way flange; 421. a liquid outlet end pipe; 500. a transformer bank.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
A liquid-cooled energy storage battery cluster according to some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a liquid-cooled energy storage battery cluster, including: the energy storage bin barrel 100, the air cooling heat dissipation assembly 200, the battery packs 300, the liquid distribution assemblies 400 and the transformer groups 500 electrically connected with the battery packs 300, wherein the battery stand 120 is sleeved on the inner side of the energy storage bin barrel 100, a plurality of clamping sleeve seats 130 for fixing the battery packs 300 are fixedly arranged on the surface of the battery stand 120 in a clamping manner, the liquid storage barrels 140 are sleeved on the inner side of the battery stand 120, the liquid distribution assemblies 400 are uniformly distributed on the periphery of the battery stand 120 in the circumferential direction and are positioned on the inner side of the energy storage bin barrel 100, a plurality of air inlet grids 110 opposite to the surfaces of the liquid distribution assemblies 400 are arranged on the surface of the energy storage bin barrel 100, the liquid distribution assemblies 400 and the clamping sleeve seats 130 are uniformly divided into a plurality of groups, and each group of liquid distribution assemblies 400 are vertically and sequentially arranged and positioned between the adjacent liquid distribution assemblies 400;
the air-cooled heat dissipation assembly 200 comprises a heat exchange disc 210 and a fan 220 fixed on the top surface of the heat exchange disc 210, the heat exchange disc 210 is fixedly arranged on the top surface of the battery stand 120, the battery pack 300 comprises a battery jacket 310 and collecting and distributing plates 320 positioned on two sides of the battery jacket 310, a plurality of electric cores 330 are sleeved on the inner side of the battery jacket 310, a plurality of diversion channels 311 positioned on two sides of the battery pack 300 are arranged on the surface of the battery jacket 310, two ends of the diversion channels 311 are respectively communicated with the interiors of the collecting and distributing plates 320 on two sides, the liquid distribution assembly 400 comprises a main flow channel 410, a liquid distribution branch pipe 420 and a plurality of heat exchange fin plates 430 sleeved on the surface of the liquid distribution branch pipe 420, a liquid inlet end pipe 411 is arranged at the bottom end of the main flow channel 410, the other end of the liquid inlet end pipe 411 is communicated with a circulating pump 141 fixed on the inner side of the liquid storage barrel 140, a plurality of two-way flanges 412 are arranged on the surface of the main flow channel 410, the end of the liquid distribution branch pipe 420 is communicated with ports of the two-way flanges 412, the refrigerant 321 on the surfaces of the two-way liquid distributing plates 320 are respectively communicated with the liquid outlet end pipe 421 and the heat exchange disc 210, the inner side of the liquid storage barrel 140 is provided with a coil 142, and the end of the refrigerant 142 is communicated with the refrigerant storage barrel 100 outside the compression equipment.
In this embodiment, the liquid storage tank 140 is filled with a cooling liquid, the liquid level of the cooling liquid is higher than the top surface of the refrigerant coil 142, the refrigerant coil 142 is in a spiral metal copper tube structure, and the refrigerant coil 142 is filled with a refrigerant liquid communicated with the compression refrigeration device.
Specifically, during the energy storage peak period, the cooling of the refrigerant liquid is performed by the compression refrigeration device, and the heat exchange between the refrigerant liquid and the cooling liquid in the liquid storage barrel 140 is realized by the refrigerant coil 142, so that the heat of the cooling liquid is reduced.
In this embodiment, the interior of the main flow channel 410 is a hollow structure, and a plurality of liquid distribution branch pipes 420 are communicated with the inner cavity of the main flow channel 410 through two-way flanges 412 and are arranged in a zigzag shape.
Specifically, the hard main flow channel 410 and the liquid distribution branch pipe 420 are used for communicating the output liquid flow of the liquid storage barrel 140, so that the output liquid flow is uniformly dispersed inside each battery pack 300, the stable and balanced liquid flow flux inside each battery pack 300 is ensured, and the problem of uneven cooling effect of each battery pack 300 is avoided by the connection mode of the rigid hard pipe.
In this embodiment, the liquid distribution pipe 420 and the heat exchange fin plate 430 are metal members, and the heat exchange fin plate 430 is uniformly distributed on the surface of the liquid distribution pipe 420 and is arranged parallel to the air inlet direction of the air inlet grille 110.
Specifically, the temperature of the environmental air flow entering the energy storage bin barrel 100 is reduced, the environmental temperature in the energy storage bin barrel 100 is integrally controlled, and the balanced refrigeration and the temperature reduction of the plurality of liquid distribution assemblies 400 are realized.
In this embodiment, the heat exchange plate 210 includes a cooling tube and a plurality of fin structures located on the surface of the cooling tube, the cooling tube is in a planar spiral arrangement, and the surface of the cooling tube is provided with a plurality of liquid inlet holes, and the liquid inlet holes are communicated with the communicating pipes 321 on one side of each battery pack 300 through a pipe structure.
Specifically, the heat exchange plate 210 is utilized to reflux the high-temperature liquid in each battery pack 300, and the temperature is reduced under the action of the air flow, so that the cooled liquid flow reenters the liquid storage barrel 140.
In this embodiment, the battery pack 310 is a metal aluminum material member, and a heat conductive silicone grease layer attached to the surface of the battery cell 330 is coated on the inner side of the battery pack 310.
In this embodiment, the end of the communicating pipe 321 is provided with a control valve, and the end of the control valve is connected to the communicating pipe 321 through a quick connector.
Specifically, the on-off control of the coolant is performed by using the control valve at the end of the communicating pipe 321, and the quick assembly and disassembly of the battery packs 300 are realized by using the quick connector, so that each battery pack 300 arranged on the surface of the battery stand 120 can be independently assembled and disassembled for maintenance.
In this embodiment, the sub-flow channel 311 and the battery jacket 310 are integrally formed, the surface of the collecting and distributing plate 320 is provided with a plurality of connection plugs adapted to the inner sides of the sub-flow channel 311, the surface of the collecting and distributing plate 320 is provided with electrode grooves for connecting the electrodes of the battery cells 330, and the electrode ends of the battery cells 330 are electrically connected with the input ends of the transformer set 500.
The working principle and the using flow of the invention are as follows:
in the operation of the liquid cooling energy storage battery cluster, the refrigerant in the liquid storage barrel 140 is pumped and output to the inside of each main flow channel 410 through the circulating pump 141, and is introduced into each liquid distribution assembly 400 through the liquid distribution branch pipe 420 and the liquid outlet end pipe 421, the liquid flow sequentially passes through the communicating pipe 321 and the liquid collecting and distributing plate 320 of the battery pack 300, is dispersed to each sub flow channel 311, is collected through the liquid collecting and distributing plate 320 at the other side, and then is refluxed by the communicating pipe 321 to be communicated with the coil inside the heat exchange disc 210, and then is refluxed to the inside of the liquid storage barrel 140, thereby completing the whole liquid flow circulation; when the liquid flows in the liquid distribution branch pipe 420, heat of air flow entering the energy storage bin 100 through the air inlet grille 110 is absorbed by the heat exchange fin plates 430, and the whole internal environment of the energy storage bin 100 is cooled, so that the balanced cooling of each liquid distribution component 400 is ensured; the low-temperature airflow cools the heat flow flowing in the heat exchange plate 210 to a certain extent when penetrating the heat exchange plate 210, and under the action of the fan 220, the external airflow enters through the air inlet grille 110 and is discharged from the top surface of the fan 220, so that air-cooled cooling is realized, and the air-cooled cooling can be used in a night energy storage low-peak period; in the energy storage peak period, the refrigerant coil 142 is communicated with an external compression refrigerator structure, the refrigerant exchange between the refrigerant coil 142 and the compression refrigerator rapidly cools the liquid in the liquid storage barrel 140, and the low Wen Yeliu is utilized to circulate in the battery pack 300, the liquid distribution assembly 400 and the heat exchange plate 210, so that the cooling effect of the battery pack 300 is improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A liquid-cooled energy storage battery cluster, comprising: energy storage storehouse section of thick bamboo (100), forced air cooling radiating element (200), group battery (300) and cloth liquid subassembly (400) and with transformer group (500) of each group battery (300) electric connection, battery grudging post (120) have been cup jointed to the inboard of energy storage storehouse section of thick bamboo (100), the surface of battery grudging post (120) is equipped with the joint and is fixed with a plurality of cutting ferrule seats (130) that are used for fixed group battery (300), stock solution bucket (140) have been cup jointed to the inboard of battery grudging post (120), the quantity of cloth liquid subassembly (400) is a plurality of and is circumferencial direction evenly distributed in battery grudging post (120) periphery and is located the inboard of energy storage storehouse section of thick bamboo (100), the air inlet grille (110) of a plurality of pairs of cloth liquid subassembly (400) surfaces have been seted up to the surface of energy storage storehouse section of thick bamboo (100), the quantity of cloth liquid subassembly (400) and cutting ferrule seat (130) is a plurality of just for the multiunit, every group cloth liquid subassembly (400) are vertical arrange in proper order and lie in between adjacent cloth liquid subassembly (400).
2. The liquid-cooled energy storage battery cluster according to claim 1, wherein the liquid storage barrel (140) is internally filled with cooling liquid, the liquid level of the cooling liquid is higher than the top surface of the refrigerant coil (142), the refrigerant coil (142) is of a spiral metal copper pipe structure, and the refrigerant liquid communicated with the compression refrigeration equipment is filled in the refrigerant coil (142).
3. The liquid cooled energy storage battery cluster of claim 1, wherein the air cooled heat sink assembly (200) comprises a heat exchange plate (210) and a fan (220) secured to a top surface of the heat exchange plate (210), the heat exchange plate (210) being fixedly mounted to a top surface of the battery stand (120).
4. A liquid-cooled energy storage battery cluster according to claim 3, wherein the battery pack (300) comprises a battery jacket (310) and collecting and distributing plates (320) positioned at two sides of the battery jacket (310), a plurality of electric cells (330) are sleeved on the inner side of the battery jacket (310), a plurality of flow dividing channels (311) positioned at two sides of the battery pack (300) are arranged on the surface of the battery jacket (310), and two ends of the flow dividing channels (311) are respectively communicated with the interiors of the collecting and distributing plates (320) at two sides.
5. The liquid-cooled energy storage battery cluster according to claim 4, wherein the heat exchange plate (210) comprises a cooling pipe and a plurality of fin structures positioned on the surface of the cooling pipe, the cooling pipe is in a plane spiral arrangement, the surface of the cooling pipe is provided with a plurality of liquid inlet holes, and the liquid inlet holes are communicated with communicating pipes (321) on one side of each battery pack (300) through pipeline structures.
6. The liquid-cooled energy storage battery cluster according to claim 4, wherein the battery sheath (310) is a metal aluminum material member, and a heat-conducting silicone grease layer attached to the surface of the battery core (330) is smeared on the inner side of the battery sheath (310);
the end part of the communicating pipe (321) is provided with a control valve, and the end part of the control valve is connected with the communicating pipe (321) through a quick connector.
7. The liquid-cooled energy storage battery cluster according to claim 4, wherein the shunt channel (311) and the battery sheath (310) are of an integrated structure, a plurality of connection plugs matched with the inner sides of the shunt channels (311) are arranged on the surface of the collecting and distributing plate (320), an electrode groove for connecting the electrodes of the battery core (330) is arranged on the surface of the collecting and distributing plate (320), and the electrode ends of the battery core (330) are electrically connected with the input end of the transformer set (500).
8. The liquid cooling energy storage battery cluster according to claim 1, wherein the liquid distribution assembly (400) comprises a main flow channel (410), a liquid distribution branch pipe (420) and a plurality of heat exchange fin plates (430) sleeved on the surface of the liquid distribution branch pipe (420), a liquid inlet end pipe (411) is arranged at the bottom end of the main flow channel (410), a circulating pump (141) fixed on the inner side of a liquid storage barrel (140) is communicated with the other end of the liquid inlet end pipe (411), a plurality of bi-pass flanges (412) are arranged on the surface of the main flow channel (410), the end of the liquid distribution branch pipe (420) is communicated with ports of the bi-pass flanges (412), communicating pipes (321) on the surfaces of two-side liquid collecting and distributing plates (320) are respectively communicated with the liquid outlet end pipe (421) and a heat exchange disc (210), a coil pipe (142) is arranged on the inner side of the liquid storage barrel (140), and a compression refrigeration device positioned on the outer side of the energy storage bin (100) is communicated with the end of the coil pipe (142).
9. The liquid-cooled energy storage battery cluster according to claim 8, wherein the interior of the main flow channel (410) is of a cavity structure, and the liquid distribution branch pipes (420) are communicated with the inner cavity of the main flow channel (410) through double-pass flanges (412) and are arranged in a zigzag shape.
10. The liquid-cooled energy storage battery cluster according to claim 1, wherein the liquid distribution branch pipe (420) and the heat exchange fin plates (430) are metal members, and the heat exchange fin plates (430) are uniformly distributed on the surface of the liquid distribution branch pipe (420) and are arranged in parallel to the air inlet direction of the air inlet grille (110).
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