CN115472955A - Current equalizing device and method for battery energy storage liquid cooling system - Google Patents
Current equalizing device and method for battery energy storage liquid cooling system Download PDFInfo
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- CN115472955A CN115472955A CN202211107800.4A CN202211107800A CN115472955A CN 115472955 A CN115472955 A CN 115472955A CN 202211107800 A CN202211107800 A CN 202211107800A CN 115472955 A CN115472955 A CN 115472955A
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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
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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
- H01M10/65—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a flow equalizing device and a flow equalizing method for a battery energy storage liquid cooling system, which relate to the technical field of liquid cooling devices and comprise a battery energy storage box, a battery module and a cover plate, wherein the battery module is arranged in the cavity of the battery energy storage box, the cover plate is fixedly connected to the top of the battery energy storage box through bolts, a liquid pump pumps out cooling liquid of a liquid storage tank and distributes the cooling liquid to a plurality of flow equalizing assemblies through a liquid inlet main pipe, the cooling liquid passing through one flow equalizing assembly enters an adjacent heat conducting assembly, the battery module is positioned between the two adjacent heat conducting assemblies, heat in the battery energy storage box exchanges heat with the cooling liquid through air holes in the surface of the battery energy storage box and then enters a heat radiating assembly through a liquid outlet main pipe, and the battery assembly is positioned between the two heat radiating assemblies, so that the heat can be better radiated, and the situation that a single pipe can not fully cool the cooling liquid conveyed by the cooling liquid is avoided. The high-speed flowing cooling liquid entering the flow equalizing assembly can better control the passing speed, so that the flow equalizing purpose of the cooling liquid is realized.
Description
Technical Field
The invention relates to the technical field of liquid cooling devices, in particular to a current equalizing device and method for a battery energy storage liquid cooling system.
Background
The battery energy storage has the advantages of relatively mature technology, large capacity, safety, reliability, low noise, strong environmental adaptability, convenience in installation and the like, so that an energy storage system stores electric energy by using a battery commonly, and at present, the energy storage system mainly comprises an energy storage unit and a monitoring and scheduling management unit, wherein the energy storage unit comprises an energy storage battery pack (BA), a Battery Management System (BMS), an energy storage converter (PCS) and the like. The battery system is composed of a series of modules, and the heat generated during operation is also accumulated in the modules, so that the heat dissipation operation is generally performed by using a liquid cooling system.
In the traditional liquid cooling system working process, carry the coolant liquid by a cooling tube and dispel the heat to battery energy storage system, and battery energy storage system generally comprises a plurality of modules, single heat dissipation runner is limited to energy storage system's heat-sinking capability, the difference in temperature that leads to energy storage system different positions is great, the radiating effect at energy storage system both ends appears easily because the condition of mid portion, in addition, the coolant liquid flow that gets into every module receives the influence of pipeline resistance factor, can lead to the pipeline coolant liquid velocity of flow that is close apart from the liquid pump fast, and the slow condition of pipeline coolant liquid velocity of flow far apart, flow distribution inequality leads to the battery module heat dispersion far away from the liquid pump relatively poor, lead to the problem that this part battery module life reduces.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a flow equalizing device and a flow equalizing method for a battery energy storage liquid cooling system, which solve the problems that the heat dissipation capacity of a single heat dissipation flow channel on the energy storage system is limited, the temperature difference of different positions of the energy storage system is larger, the flow of cooling liquid entering each module is influenced by pipeline resistance factors, the heat dissipation performance of a battery module far away from a liquid pump is poor due to uneven flow distribution, and the service life of the battery module is shortened.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a battery energy storage liquid cooling system flow straightener and method, includes battery energy storage box and sets up at the inside battery module of battery energy storage box cavity and the apron at battery energy storage box top through bolt fixed connection, the positive fixedly connected with cooling fluid reservoir of battery energy storage box, and the front of battery energy storage box and the right side fixedly connected with radiator unit who is located the cooling fluid reservoir, through pipeline fixedly connected with liquid pump on radiator unit's the lateral wall is kept away from to the cooling fluid reservoir, the output fixedly connected with feed liquor of liquid pump is responsible for, the feed liquor is responsible for a plurality of feed liquor branch pipes of fixedly connected with on being close to battery energy storage box's the lateral wall, every the equal fixedly connected with sub-flange dish in one end of feed liquor branch pipe, sub-flange dish are kept away from and are provided with the subassembly that flow equalizes on the lateral wall that the feed liquor was responsible for, the one end that the subassembly is close to battery energy storage box is provided with female flange dish, the one end fixedly connected with honeycomb duct of female flange dish, and the one end of honeycomb duct runs through battery energy storage box and fixedly connected with heat-conducting assembly, heat-conducting assembly right side wall fixedly connected with drain branch pipe, the one end of heat-conducting assembly runs through battery energy storage box and the drain branch pipe is responsible for fixedly connected with drain pipe.
The flow equalizing assembly comprises a uniform flow pipe, a first flange plate fixedly connected to one end of the uniform flow pipe and a second flange plate fixedly connected to the other end of the uniform flow pipe, the bearing plate is fixedly connected to the inner wall of the cavity of the uniform flow pipe, a transmission shaft penetrates through the inside of the bearing plate, an impeller and a flow equalizing plate are fixedly connected to the two ends of the transmission shaft respectively, a first pressure stabilizing assembly fixedly connected to one side of the flow equalizing plate is far away from the inside of the cavity of the uniform flow pipe, a sliding groove is formed in one side, far away from the second flange plate, of the inner wall of the cavity of the uniform flow pipe, a second pressure stabilizing assembly is connected to the inside of the sliding groove in a sliding mode, and a spring is fixedly connected between the second pressure stabilizing assembly and the side wall of the sliding groove.
Further, the radiating assembly comprises a radiating box and a motor fixedly connected to one side wall of the radiating box, the output end of the motor rotates to penetrate through the radiating box and the fixedly connected with fan, the inside of the radiating box is located on the right side of the fan, a ventilation window is arranged on the front side of the radiating box, the two side walls of the left side and the right side of the radiating box are fixedly connected with connecting pipes, one ends of the two connecting pipes penetrate through the radiating box and are fixedly connected with the two ends of the radiating pipe respectively, one of the connecting pipes is communicated with the inside of the cooling liquid tank, and the other connecting pipe is fixedly connected with a liquid drainage main pipe.
Further, the heat conduction assembly comprises a heat conduction plate, a conveying pipe is fixedly connected inside a cavity of the heat conduction plate, and air holes are formed in two side walls of the heat conduction plate.
Furthermore, the first pressure stabilizing assembly comprises a first pressure stabilizing plate and a plunger fixedly connected to the side wall close to the second pressure stabilizing assembly, and a through hole is formed in the side wall of the first pressure stabilizing plate close to the second pressure stabilizing assembly.
Further, the second voltage stabilizing assembly comprises a voltage stabilizing plate and a sliding block which is fixedly connected to the outer wall of the voltage stabilizing plate and is slidably connected to the inner portion of the sliding groove, and a thin liquid discharge hole and a thick liquid discharge hole are formed in the outer wall of the voltage stabilizing plate respectively.
Furthermore, the number of the thin liquid discharge holes is the same as that of the through holes, the positions of the thin liquid discharge holes correspond to those of the through holes one by one, the number of the thick liquid discharge holes is the same as that of the plungers, the positions of the thick liquid discharge holes correspond to those of the plungers one by one, and the outer diameters of the plungers are matched with the inner diameter of the thick liquid discharge holes.
Furthermore, the first flange plate is fixedly connected with the sub flange plate through bolts, and the second flange plate is fixedly connected with the female flange plate through bolts.
Furthermore, a plurality of through holes are uniformly formed in the surface of the flow equalizing plate.
The invention also provides a use method of the battery energy storage liquid cooling system current equalizing device, which specifically comprises the following steps:
step one, cooling circulation: when the battery energy storage system works, the liquid pump pumps out cooling liquid of the cooling liquid tank, the cooling liquid is distributed to the plurality of flow equalizing assemblies through the liquid inlet main pipe, the cooling liquid passing through one flow equalizing assembly enters one adjacent heat conducting assembly, the battery module is positioned between the two adjacent heat conducting assemblies, heat inside the battery energy storage box enters the heat radiating assembly through the liquid discharging main pipe after heat exchange is carried out between the air holes in the surface of the battery energy storage box and the cooling liquid, and the cooling liquid after heat volatilization enters the cooling liquid tank again to repeat the circulation;
step two, flow equalization circulation of the near liquid pump: the high-speed flowing cooling liquid entering the flow equalizing assembly pushes the pressure stabilizing plate to be close to the first pressure stabilizing assembly, the plunger enters the thick liquid discharging hole to lose the liquid discharging effect, the cooling liquid is discharged through the thin liquid discharging hole, then passes through the through hole to be blown on the impeller and drives the impeller to rotate, and the cooling liquid is discharged through the through hole in the surface of the flow equalizing plate;
step three, flow equalization circulation of a remote liquid pump: during the coolant liquid entered into the subassembly that flow equalizes of keeping away from the liquid pump, the unable stabilizer plate that promotes of coolant liquid that the low-speed flows removed, and the coolant liquid is discharged simultaneously through thick outage and thin outage, and impeller pivoted speed is less than the rotational speed of coolant liquid high-speed flow when passing through, and the coolant liquid is discharged through the through-hole on the surface of flow equalizes.
Advantageous effects
The invention provides a current equalizing device and method for a battery energy storage liquid cooling system. Compared with the prior art, the method has the following beneficial effects:
1. the utility model provides a battery energy storage liquid cooling system flow straightener and method, the liquid pump is taken the coolant liquid of liquid storage pot out, and be responsible for through the feed liquor and distribute a plurality of subassemblies that flow equalize, the coolant liquid through one of them subassembly that flow equalize enters into adjacent a heat conduction assembly, the battery module is located between two adjacent heat conduction assemblies, the inside heat of battery energy storage box is responsible for through flowing back and is entered into the radiator unit through the flowing back after carrying out the heat exchange through the bleeder vent on its surface and coolant liquid, because battery unit is in between two radiator unit, consequently, heat dissipation that can be better, the unable abundant comprehensive refrigerated condition of coolant liquid of single tube transport has been avoided.
2. The utility model provides a battery energy storage liquid cooling system flow straightener and method, the coolant liquid that enters into the high-speed flow of the subassembly that flow equalizes promotes the voltage stabilizing plate and is close to first steady voltage subassembly, the plunger enters into and makes it lose the flowing back effect in the thick outage, the coolant liquid is discharged through thin outage, pass the clearing hole after that and sweep on the impeller, and drive its rotation, thereby the speed that the control coolant liquid that can be better passes through, keep the inside position of keeping away from the liquid pump of feed liquor person in charge still can keep stronger pressure, thereby realize the purpose that the coolant liquid flows equalizes.
3. The utility model provides a battery energy storage liquid cooling system flow straightener and method, the coolant liquid enters into the subassembly that flow equalizes of keeping away from the liquid pump, the coolant liquid that the low-speed flows can't promote the voltage stabilizing plate and remove, the coolant liquid is discharged simultaneously through thick outage and thin outage, impeller pivoted speed is less than the rotational speed that the coolant liquid high-speed flow was through, thereby can improve the velocity of flow that improves far-reaching liquid pump end flow equalizer, it is low to compensate far-reaching liquid pump end coolant liquid velocity of flow, the little not enough of pressure, thereby can realize the purpose that a plurality of positions flow equalize.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic exploded perspective view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic cross-sectional view of a flow equalization assembly of the present invention;
FIG. 5 is a schematic diagram of the three-dimensional structure of the equal-flow valence explosion of the present invention;
FIG. 6 is a schematic view of the internal structure of the heat dissipation assembly of the present invention;
fig. 7 is a schematic view of the internal structure of the heat conducting assembly according to the present invention.
In the figure: 1. a battery energy storage box; 2. a battery module; 3. a cover plate; 4. a cooling liquid tank; 5. a heat dissipating component; 51. a heat dissipation box; 52. a motor; 53. a fan; 54. a radiating pipe; 55. a ventilation window; 6. a liquid pump; 7. a liquid inlet main pipe; 8. a liquid inlet branch pipe; 9. a current sharing component; 91. a flow homogenizing pipe; 92. a first flange plate; 93. a second flange plate; 94. a drive shaft; 95. an impeller; 96. a flow equalizing plate; 97. a first voltage stabilization assembly; 971. a first pressure stabilizing plate; 972. a plunger; 973. through the aperture; 98. a chute; 99. a second voltage stabilizing assembly; 991. a pressure stabilizing plate; 992. a slider; 993. a fine drain hole; 994. a coarse drain hole; 910. a spring; 10. a heat conducting component; 101. a heat conducting plate; 102. a delivery pipe; 103. air holes are formed; 11. a liquid discharge branch pipe; 12. a liquid drainage main pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides two technical schemes:
as shown in fig. 1-5, a first embodiment: including battery energy storage box 1 and the battery module 2 of setting inside battery energy storage box 1 cavity and the apron 3 of connecting at battery energy storage box 1 top through bolt fixed connection, the positive fixedly connected with cooling fluid reservoir 4 of battery energy storage box 1, and the front of battery energy storage box 1 just is located the right side fixedly connected with radiator unit 5 of cooling fluid reservoir 4, through pipeline fixedly connected with liquid pump 6 on radiator unit 5's the lateral wall is kept away from to cooling fluid reservoir 4, the output fixedly connected with feed liquor of liquid pump 6 is responsible for 7, the feed liquor is responsible for 7 and is close to a plurality of feed liquor branch pipes 8 of fixedly connected with on the lateral wall of battery energy storage box 1, the equal fixedly connected with in one end of every feed liquor branch pipe 8 is responsible for the ring flange, be provided with flow equalizing assembly 9 on the lateral wall that the feed liquor 7 was kept away from to the ring flange, the one end that flow equalizing assembly 9 is close to battery energy storage box 1 is provided with female flange dish, the one end fixedly connected with honeycomb duct of female flange dish, the one end of honeycomb duct runs through battery energy storage box 1 and fixedly connected with heat-conducting assembly 10, heat-conducting assembly 10 right side wall fixedly connected with flowing back branch pipe 11, the one end of drainage branch pipe 11 runs through battery energy storage box 1 and fixedly connected with 12. The flow equalizing assembly 9 comprises a flow equalizing pipe 91, a first flange plate 92 fixedly connected to one end of the flow equalizing pipe 91 and a second flange plate 93 fixedly connected to the other end of the flow equalizing pipe 91, a bearing plate fixedly connected to the inner wall of the cavity of the flow equalizing pipe 91, a transmission shaft 94 penetrates through the inside of the bearing plate, an impeller 95 and a flow equalizing plate 96 are fixedly connected to the two ends of the transmission shaft 94 respectively, a first pressure stabilizing assembly 97 fixedly connected to one side of the flow equalizing plate 96 inside the cavity of the flow equalizing pipe 91, a sliding groove 98 is formed in one side of the inner wall of the cavity of the flow equalizing pipe 91 far away from the second flange plate 93, a second pressure stabilizing assembly 99 is slidably connected to the inside of the sliding groove 98, a spring 910 is fixedly connected between the second pressure stabilizing assembly 99 and the side wall of the sliding groove 98, the first pressure stabilizing assembly 97 comprises a first pressure stabilizing plate 971 and a plunger 972 fixedly connected to the side wall of the second pressure stabilizing assembly 99, and a through hole 973 is formed in the side wall of the first pressure stabilizing plate 971 near the second pressure stabilizing assembly 99. The second voltage stabilizing component 99 comprises a voltage stabilizing plate 991 and a sliding block 992 which is fixedly connected to the outer wall of the voltage stabilizing plate 991 and is slidably connected to the inside of the sliding groove 98, and a thin liquid discharge hole 993 and a thick liquid discharge hole 994 are respectively formed in the outer wall of the voltage stabilizing plate 991. The number of the thin liquid discharge holes 993 is the same as that of the through holes 973, the positions of the thin liquid discharge holes are in one-to-one correspondence, the number of the thick liquid discharge holes 994 is the same as that of the plungers 972, the positions of the thick liquid discharge holes 994 are in one-to-one correspondence, and the outer diameter of the plungers 972 is matched with the inner diameter of the thick liquid discharge holes 994. The first flange 92 is fixedly connected to the sub-flange by bolts, and the second flange 93 is fixedly connected to the female flange by bolts. The surface of the flow equalizing plate 96 is uniformly provided with a plurality of through holes.
The coolant liquid that enters into the high-speed flow that flow equalizes the subassembly promotes the stabilizer plate and is close to first stabilizer subassembly 97, plunger 972 enters into and makes it lose the flowing back effect in thick outage 994, the coolant liquid discharges through thin outage 993, pass through the clearing hole 973 and sweep on impeller 95 after that, and drive its rotation, thereby the speed that control coolant liquid that can be better passes through, keep the liquid inlet to be responsible for 7 inside positions of keeping away from liquid pump 6 still can keep stronger pressure, thereby realize the purpose that the coolant liquid flow equalizes, impeller 95 pivoted speed is less than the rotational speed when the coolant liquid high-speed flow passes through, thereby can improve the velocity of flow that improves the subassembly that flow equalizes of 6 ends of liquid pump far away, it is low to compensate the 6 end coolant liquid velocity of flow equalizes of liquid pump far away, little not enough of pressure, thereby can realize the purpose of a plurality of position flow equalizes.
Fig. 6 to 7 show a second embodiment, which is different from the first embodiment mainly in that: the heat dissipation assembly 5 comprises a heat dissipation box 51 and a motor 52 fixedly connected to one side wall of the heat dissipation box 51, the output end of the motor 52 rotates to penetrate through the heat dissipation box 51 and a fan 53 fixedly connected with, the inside of the heat dissipation box 51 is located on the right side of the fan 53, a ventilation window 55 is formed in the front face of the heat dissipation box 51, connecting pipes are fixedly connected to the left side wall and the right side wall of the heat dissipation box 51, one ends of the two connecting pipes penetrate through the heat dissipation box 51 and are fixedly connected with the two ends of the heat dissipation pipe 54 respectively, one of the connecting pipes is communicated with the inside of the cooling liquid tank 4, and the other connecting pipe is fixedly connected with the liquid drainage main pipe 12. The heat conducting component 10 comprises a heat conducting plate 101, a conveying pipe 102 is fixedly connected inside a cavity of the heat conducting plate 101, and air holes 103 are formed in two side walls of the heat conducting plate 101. The coolant tank 4 communicates with the radiator pipe 54 inside the radiator tank 5.
Be in between two radiator unit 5 through battery pack, consequently can be better the heat dissipation, avoided the single tube to carry the unable fully comprehensive refrigerated condition of coolant liquid, conveyer pipe 102 and cooling tube 54 all are the wave and distribute moreover, and conveyer pipe 102 distribution area enlarges, area of contact when can increasing heat exchange, and the coolant liquid can increase with the area of contact of outside air when passing through cooling tube 54, increase rate of heat dissipation.
The invention also provides a use method of the battery energy storage liquid cooling system current equalizing device, which specifically comprises the following steps:
step one, cooling circulation: when the battery energy storage system works, the liquid pump 6 pumps out cooling liquid of the cooling liquid tank 4, the cooling liquid is distributed to the plurality of flow equalizing assemblies 9 through the liquid inlet main pipe 7, the cooling liquid passing through one flow equalizing assembly 9 enters one adjacent heat conducting assembly 10, the battery module 2 is positioned between the two adjacent heat conducting assemblies 10, heat inside the battery energy storage tank 1 is subjected to heat exchange with the cooling liquid through the air holes 103 on the surface of the battery energy storage tank and then enters the heat dissipation assembly 5 through the liquid discharge main pipe 12, and the cooling liquid after heat volatilization enters the cooling liquid tank 4 again to repeat the circulation;
step two, flow equalization circulation of the near liquid pump: the high-speed flowing cooling liquid entering the flow equalizing assembly 9 pushes the pressure stabilizing plate 991 to be close to the first pressure stabilizing assembly 97, the plunger 972 enters the thick liquid discharging hole 994 to enable the thick liquid discharging hole 994 to lose the liquid discharging effect, the cooling liquid is discharged through the thin liquid discharging hole 993, then passes through the through hole 973 to be blown on the impeller 95 and drives the impeller to rotate, and the cooling liquid is discharged through the through hole in the surface of the flow equalizing plate 96;
step three, flow equalization circulation of a remote liquid pump: the coolant liquid enters into the subassembly 9 that flow equalizes that keeps away from liquid pump 6, and the coolant liquid that the low-speed flows can't promote the steady voltage board 991 and remove, and the coolant liquid discharges simultaneously through thick outage 994 and thin outage 993, and the rotational speed of impeller 95 is less than the rotational speed when the high-speed flow of coolant liquid passes through, and the coolant liquid discharges through the through-hole on flow equalizer 96 surface.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a battery energy storage liquid cooling system flow straightener, includes battery energy storage box (1) and sets up at inside battery module (2) of battery energy storage box (1) cavity and apron (3) at battery energy storage box (1) top through bolt fixed connection, its characterized in that: the battery energy storage box comprises a battery energy storage box (1), a cooling liquid tank (4) is fixedly connected to the front side of the battery energy storage box (1), a heat dissipation assembly (5) is fixedly connected to the front side of the battery energy storage box (1) and located on the right side of the cooling liquid tank (4), a liquid pump (6) is fixedly connected to the side wall, far away from the heat dissipation assembly (5), of the cooling liquid tank (4) through a pipeline, an output end of the liquid pump (6) is fixedly connected with a liquid inlet main pipe (7), a plurality of liquid inlet branch pipes (8) are fixedly connected to the side wall, close to the battery energy storage box (1), of the liquid inlet main pipe (7), a sub flange plate is fixedly connected to one end of each liquid inlet branch pipe (8), a flow equalizing assembly (9) is arranged on the side wall, far away from the liquid inlet main pipe (7), a mother flange plate is arranged at one end, close to the battery energy storage box (1), of each flow equalizing assembly (9), a flow guide pipe is fixedly connected to one end of each flow guide pipe, penetrates through the battery energy storage box (1) and is fixedly connected with a heat conduction assembly (10), a branch pipe (11) is fixedly connected to the right side wall of each heat conduction assembly (10), and one end of each flow guide pipe (11) penetrates through the battery energy storage box (1) and is fixedly connected with a liquid drainage main pipe (12);
the flow equalizing assembly (9) comprises a uniform flow pipe (91), a first flange plate (92) fixedly connected to one end of the uniform flow pipe (91) and a second flange plate (93) fixedly connected to the other end of the uniform flow pipe (91), a bearing plate is fixedly connected to the inner cavity wall of the uniform flow pipe (91), a transmission shaft (94) penetrates through the bearing plate, two ends of the transmission shaft (94) are respectively fixedly connected with an impeller (95) and a flow equalizing plate (96), the first pressure stabilizing assembly (97) is fixedly connected to one side, away from the flow equalizing plate (96), of the inner cavity wall of the uniform flow pipe (91), a sliding groove (98) is formed in one side, away from the second flange plate (93), of the inner cavity wall of the uniform flow pipe (91), a second pressure stabilizing assembly (99) is connected to the sliding groove (98), and a spring (910) is fixedly connected between the second pressure stabilizing assembly (99) and the side wall of the sliding groove (98).
2. The battery energy storage liquid cooling system current equalizing device of claim 1, wherein: radiator unit (5) are including heat dissipation case (51) and motor (52) of fixed connection at heat dissipation case (51) a lateral wall, the output of motor (52) rotates and runs through heat dissipation case (51) and fixedly connected with fan (53), the inside of heat dissipation case (51) and right side fixedly connected with cooling tube (54) that are located fan (53), ventilative window (55) have been seted up in the front of heat dissipation case (51), the equal fixedly connected with of the left and right sides wall of heat dissipation case (51) links up the pipe, and the one end of two links up the pipe runs through both ends fixed connection of heat dissipation case (51) respectively with cooling tube (54), and one of them links up pipe and cooling fluid reservoir (4) inside is linked together, and another links up the pipe and is responsible for flowing back (12) fixed connection.
3. The battery energy storage liquid cooling system current equalizing device of claim 2, wherein: the heat conduction assembly (10) comprises a heat conduction plate (101), a conveying pipe (102) is fixedly connected inside a cavity of the heat conduction plate (101), and air holes (103) are formed in two side walls of the heat conduction plate (101).
4. The battery energy storage liquid cooling system current sharing device of claim 3, wherein: the first pressure stabilizing assembly (97) comprises a first pressure stabilizing plate (971) and a plunger (972) fixedly connected to the side wall close to the second pressure stabilizing assembly (99), and a through hole (973) is formed in the side wall, close to the second pressure stabilizing assembly (99), of the first pressure stabilizing plate (971).
5. The battery energy storage liquid cooling system current sharing device of claim 4, wherein: second steady voltage subassembly (99) include steady voltage board (991) and fixed connection on steady voltage board (991) outer wall and sliding connection slider (992) inside spout (98), thin outage (993) and thick outage (994) have been seted up on the outer wall of steady voltage board (991) respectively.
6. The battery energy storage liquid cooling system current sharing device of claim 5, wherein: the quantity of thin flowing back hole (993) is the same with clearing hole (973), and the position one-to-one, the quantity of thick flowing back hole (994) is the same with plunger (972), and the position one-to-one, the external diameter of plunger (972) and the internal diameter of thick flowing back hole (994) are adapted.
7. The battery energy storage liquid cooling system current sharing device of claim 6, wherein: the first flange plate (92) is fixedly connected with the secondary flange plate through bolts, and the second flange plate (93) is fixedly connected with the primary flange plate through bolts.
8. The battery energy storage liquid cooling system current sharing device of claim 7, wherein: the surface of the flow equalizing plate (96) is uniformly provided with a plurality of through holes.
9. The use method of the battery energy storage liquid cooling system current equalizing device according to claim 8 is characterized in that: the method comprises the following steps:
step one, cooling circulation: when the battery energy storage system works, a liquid pump (6) pumps out cooling liquid of a cooling liquid tank (4), the cooling liquid is distributed to a plurality of flow equalizing assemblies (9) through a liquid inlet main pipe (7), the cooling liquid passing through one flow equalizing assembly (9) enters one adjacent heat conducting assembly (10), a battery module (2) is located between the two adjacent heat conducting assemblies (10), heat inside a battery energy storage box (1) is subjected to heat exchange through air holes (103) in the surface of the battery energy storage box and the cooling liquid and then enters a heat radiating assembly (5) through a liquid discharging main pipe (12), and the cooling liquid after heat volatilization enters the cooling liquid tank (4) again to repeat the circulation;
step two, flow equalization circulation of the near liquid pump: the high-speed flowing cooling liquid entering the flow equalizing assembly (9) pushes a pressure stabilizing plate (991) to be close to a first pressure stabilizing assembly (97), a plunger (972) enters a thick liquid discharging hole (994) to enable the liquid discharging effect of the thick liquid discharging hole to be lost, the cooling liquid is discharged through a thin liquid discharging hole (993), then passes through a through hole (973) to be blown and swept on an impeller (95) and drives the impeller to rotate, and the cooling liquid is discharged through a through hole in the surface of a flow equalizing plate (96);
step three, flow equalization circulation of a remote liquid pump: the coolant liquid enters into the flow equalizing assembly (9) far away from the liquid pump (6), the coolant liquid flowing at a low speed cannot push the pressure stabilizing plate (991) to move, the coolant liquid is discharged through the thick liquid discharge hole (994) and the thin liquid discharge hole (993) simultaneously, the rotating speed of the impeller (95) is lower than the rotating speed of the coolant liquid when the coolant liquid flows at a high speed, and the coolant liquid is discharged through the through holes on the surface of the flow equalizing plate (96).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107800.4A CN115472955A (en) | 2022-09-13 | 2022-09-13 | Current equalizing device and method for battery energy storage liquid cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315375A (en) * | 2023-03-27 | 2023-06-23 | 江苏天钧精密技术有限公司 | New energy battery liquid cooling tray of built-in full package liquid cooling system |
| CN116315310A (en) * | 2023-05-26 | 2023-06-23 | 江苏天一航空工业股份有限公司 | Temperature control device for battery box of civil aviation new energy apron vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315375A (en) * | 2023-03-27 | 2023-06-23 | 江苏天钧精密技术有限公司 | New energy battery liquid cooling tray of built-in full package liquid cooling system |
| CN116315375B (en) * | 2023-03-27 | 2023-11-17 | 江苏天钧精密技术有限公司 | New energy battery liquid cooling tray of built-in full package liquid cooling system |
| CN116315310A (en) * | 2023-05-26 | 2023-06-23 | 江苏天一航空工业股份有限公司 | Temperature control device for battery box of civil aviation new energy apron vehicle |
| CN116315310B (en) * | 2023-05-26 | 2023-08-29 | 江苏天一航空工业股份有限公司 | Temperature control device for battery box of civil aviation new energy apron vehicle |
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