CN117525686A - Soaking partition plate and battery module - Google Patents
Soaking partition plate and battery module Download PDFInfo
- Publication number
- CN117525686A CN117525686A CN202311614686.9A CN202311614686A CN117525686A CN 117525686 A CN117525686 A CN 117525686A CN 202311614686 A CN202311614686 A CN 202311614686A CN 117525686 A CN117525686 A CN 117525686A
- Authority
- CN
- China
- Prior art keywords
- cavity
- soaking
- partition
- cooling medium
- battery
- 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
Links
- 238000005192 partition Methods 0.000 title claims abstract description 176
- 238000002791 soaking Methods 0.000 title claims abstract description 160
- 239000002826 coolant Substances 0.000 claims abstract description 110
- 238000001816 cooling Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims description 78
- 238000004891 communication Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
-
- 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
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a soaking partition plate and a battery module, wherein the battery module comprises the soaking partition plate, a battery and a direct cooling plate, and the soaking partition plate comprises: a housing provided with a hollow interior, at least a portion of the interior being configured as a closed cavity, the walls bounding the closed cavity comprising a first side wall in contact with one of the two cells and a second side wall in contact with the other of the two cells; a cooling medium disposed within the enclosed cavity; a capillary element attached to at least a portion of an inner surface of the first sidewall or at least a portion of an inner surface of the second sidewall, at least a portion of the capillary element being in contact with the cooling medium; the shell comprises a first end and a second end which are oppositely arranged, and the second end of the shell is connected to the direct cooling plate.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a soaking partition plate and a battery module.
Background
In the technical field of batteries, battery capacity and charge-discharge multiplying power are key to influence the performance of an energy storage battery, increasing the battery capacity and the charge-discharge multiplying power is a hot spot in the current market, and as the battery capacity is greatly improved, the heat productivity and the passive heat dissipation difficulty of the battery are higher and higher, so that the temperature difference phenomenon of a single battery is serious, for example, the battery is divided into an upper region, a middle region and a lower region, the temperature of the upper region is higher than the temperature of the middle region and the temperature of the lower region, the temperature difference between the temperature of the upper region and the temperature of the lower region is 10-20 ℃, and the obvious temperature difference can influence the cycle life of the battery, and particularly, after the battery is assembled to form a module, the heat dissipation difficulty of the battery is further improved.
In the related art, a heat conducting partition plate is clamped between each single battery of a battery module, a liquid cooling plate is arranged at the bottom of the battery module, and heat emitted by each battery is transferred to the liquid cooling plate by the heat conducting partition plate and is taken away by the liquid cooling plate.
However, the heat conducting separator can not solve the problem that the temperature difference of different areas on the single battery is large, so that the cycle life of the battery is influenced.
Disclosure of Invention
The embodiment of the invention provides a soaking partition plate, a battery module and a battery pack, which can solve the technical problem of large temperature difference in different areas of a battery.
In a first aspect, an embodiment of the present invention provides a soaking partition board for a battery module, where the battery module includes the soaking partition board, a battery, and a direct cooling plate, the soaking partition board is disposed between any two batteries, and the soaking partition board includes:
a housing provided with a hollow interior, at least a portion of the interior being configured as a closed cavity, the walls bounding the closed cavity comprising a first side wall in contact with one of the two cells and a second side wall in contact with the other of the two cells;
A cooling medium disposed within the enclosed cavity;
a capillary element attached to at least a portion of an inner surface of the first sidewall or at least a portion of an inner surface of the second sidewall, at least a portion of the capillary element being in contact with the cooling medium;
the shell comprises a first end and a second end which are oppositely arranged, and the second end of the shell is connected to the direct cooling plate.
In an embodiment, the first end of the housing is provided with a top wall, the second end is provided with an open end, the top wall is connected to the top of the first side wall and the second side wall, and the open end is connected to the direct cooling plate and is capped by the direct cooling plate.
In an embodiment, the first end of the housing is provided with a top wall, the second end is provided with a bottom wall, the top wall is connected to the tops of the first side wall and the second side wall, the bottom wall is connected to the bottoms of the first side wall and the second side wall, and the bottom wall is connected to the direct cooling plate.
In an embodiment, the orthographic projection area of the bottom wall on the direct cooling plate is larger than the orthographic projection area of the top wall on the direct cooling plate.
In one embodiment, the ends of the capillary element are surrounded by the cooling medium.
In an embodiment, the first sidewall includes a first inner surface and the second sidewall includes a second inner surface;
the capillary element further comprises a first capillary element and a second capillary element, wherein the first capillary element is attached to the first inner surface, the second capillary element is attached to the second inner surface, the first capillary element is used for enabling the liquid cooling medium to diffuse on the first inner surface, and the second capillary element is used for enabling the liquid cooling medium to diffuse on the second inner surface.
In an embodiment, a first partition plate and a second partition plate are arranged in the inner cavity of the shell at intervals, the first side wall, the first partition plate, the second partition plate and the second side wall are sequentially arranged at intervals in parallel, the inner cavity of the shell comprises a first cavity, a second cavity and a third cavity which are sequentially arranged at intervals, the first side wall and the first partition plate are sealed to form the first cavity, the first partition plate and the second partition plate are enclosed to form the second cavity, and the second partition plate and the second side wall are sealed to form the third cavity;
the cooling medium comprises a uniform cooling medium and a direct cooling medium, wherein the uniform cooling medium and the first capillary element are arranged in the first cavity, the uniform cooling medium and the second capillary element are arranged in the third cavity, and the direct cooling medium is arranged in the second cavity.
In one embodiment, the volume of the first cavity: volume of the second cavity: the ratio of the volumes of the third cavity is 1: x: x is more than or equal to 1 and less than or equal to 2.
In an embodiment, the cold equalization medium comprises a liquid, the cold equalization medium configured to circulate between a liquefied state and a vaporized state; and/or the direct cooling medium comprises liquid or air, and is configured to flow into the interior of the second cavity and to flow out to the exterior of the second cavity.
In an embodiment, the soaking partition further comprises a first inlet for the soaking medium to enter into the interior of the second cavity and a first outlet for the second cooling medium to flow out to the exterior of the second cavity; wherein the first inlet is in communication with the second inlet of the direct chill plate.
In an embodiment, one of the first inlet and the first outlet is disposed on the first partition, and the other of the first inlet and the first outlet is disposed on the second partition.
In a second aspect, an embodiment of the present invention provides a battery module, where the battery module includes the soaking partition, the direct cooling plate includes a top cover and a base connected to each other, the base is provided with a fluid channel, a plurality of bumps are disposed on a side surface of the top cover facing away from the soaking partition, and orthographic projections of the bumps on the base are located in the fluid channel.
In an embodiment, the cross-section of the bump comprises a circle or a square.
The embodiment of the invention has the beneficial effects that:
in the embodiment of the invention, the soaking partition plate is used for separating the first battery and the second battery, at least one part of inner cavity of the soaking partition plate is configured into a closed cavity, the wall surrounding the closed cavity comprises a first side wall and a second side wall, the first side wall is in contact with the first battery, the second side wall is in contact with the second battery, a cooling medium is arranged in the closed cavity of the soaking partition plate, heat generated by the first battery and the second battery is respectively conducted to the soaking partition plate through the first side wall and the second side wall, part of liquid cooling medium in the soaking partition plate is vaporized after absorbing the heat and then rapidly diffused in the whole closed cavity, the vaporized cooling medium is cooled by the contact of the second end of the shell with the direct cooling plate to form condensate, the condensed cooling medium is diffused on the inner wall of the shell through the capillary element, the inner wall of the shell forms a structure, and the other part of liquid cooling medium in the soaking partition plate is diffused through the capillary element after absorbing the heat, so that the temperatures of all areas in the closed cavity of the soaking partition plate are close to be consistent with the temperatures of the corresponding batteries, the soaking partition plate and then the soaking partition plate and the soaking partition plate are in different heat exchange areas are prone to be in good heat exchange with the different areas, and the soaking partition plate temperature difference is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a part of the structure of a battery module provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a soaking partition plate connected with a direct cooling plate according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic view of a structure of a soaking partition plate connected with a direct cooling plate according to another embodiment of the present invention;
FIG. 5 is a schematic view of a soaking partition plate and direct cooling plate connected together according to another embodiment of the present invention;
fig. 6 is a schematic view of a structure of a soaking partition according to another embodiment of the present invention from a front view of a housing;
fig. 7 is a schematic top view of a housing of a soaking partition according to another embodiment of the present invention;
FIG. 8 is a schematic view of a soaking partition provided in one embodiment of the present invention;
FIG. 9 is an exploded view of FIG. 8;
FIG. 10 is a schematic view of a soaking partition according to yet another embodiment of the present invention;
FIG. 11 is an exploded view of FIG. 10;
FIG. 12 is a schematic view of a base structure of a direct chill plate according to one embodiment of the invention;
FIG. 13 is a schematic view of a base structure of a direct cooling plate according to still another embodiment of the present invention;
FIG. 14 is a schematic view of the structure of the top cover of the direct chill plate provided by one embodiment of the invention;
fig. 15 is a schematic structural view of a top cover of a direct cooling plate according to still another embodiment of the present invention;
fig. 16 is a schematic view illustrating the structure of a battery module according to an embodiment of the present invention;
fig. 17 is a schematic view illustrating the structure of a battery module according to still another embodiment of the present invention;
reference numerals:
100. a battery module;
10. a battery; 11. a first battery; 12. a second battery; 110. a battery pack; 111. a first set of cells; 112. a second set of cells; 113. a third set of cells; 114. a fourth group of cells;
20. soaking the partition plate; 21. a housing; 211. a first end; 212. a second end; 213. a top wall; 215. an opening; 216. a bottom wall; 221. a first sidewall; 222. a second sidewall; 223. a first inner surface; 224. a second inner surface; 23. an inner cavity; 231. a first cavity; 232. a second cavity; 233. a third cavity; 24. a capillary element; 241. a first capillary element; 242. a second capillary element; 243. the ends of the capillary element; 251. a first separator; 252. a second separator; 261. a first inlet; 262. a first outlet;
210. A first soaking plate; 220. a second soaking plate; 230. a cooling plate; 27. a sealing plate;
30. a direct cooling plate; 31. a top cover; 311. a bump; 312. a first side; 313. a second side; 32. a base; 331. a second inlet; 332. a second outlet; 34. a flow passage;
40. a liquid inlet pipe; 41. a main liquid inlet pipe; 42. a liquid separating and feeding pipe; 43. an interface;
50. a liquid outlet pipe; 51. a main liquid outlet pipe; 52. a separation liquid pipe; 53. a joint;
60. a cooling medium; 61. homogenizing the cooling medium; 62. direct cooling medium;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
An embodiment of the present invention provides a battery module 100, where the battery module 100 may be a cylindrical battery module, and the battery module 100 may also be a prismatic battery module, where the battery module 100 includes a plurality of batteries arranged in a matrix, specifically, the battery module 100 includes a first direction X and a second direction Y perpendicular to each other, where a plurality of batteries 10 are arranged side by side along the first direction X to form a battery pack, and a plurality of battery packs are arranged side by side along the second direction Y to form a battery module 100, and in an alternative example, the battery module 100 may include a single-layer battery module, or may include a double-layer battery module or a multi-layer battery module.
The battery module 100 includes a case in which a plurality of batteries 10 are arranged in a matrix, and a case cover for covering an open end of the case.
In the technical field of batteries, the capacity and the charge-discharge rate of the battery module 100 are key to influence the performance of the energy storage battery module 100, increasing the capacity and the charge-discharge rate of the battery module 100 is a hot spot in the current market, but the volume of the battery module 100 cannot be increased, the capacity of the battery module 100 can only be increased by increasing the capacity of the battery 10, and as the capacity of the battery 10 is greatly increased, the heat productivity and the passive heat dissipation difficulty of the battery 10 are increased, so that the temperature difference phenomenon of the battery 10 is serious, for example, the battery 10 is divided into an upper region, a middle region and a lower region, the upper region temperature is higher than the middle region temperature, the lower region temperature is higher than the middle region temperature, the temperature difference of the upper region and the lower region is 10-20 ℃, and the obvious temperature difference affects the cycle life of the battery 10, and especially after the battery 10 is assembled to form a module, the heat dissipation difficulty of the battery 10 is further increased.
In the related art, a heat conductive separator is interposed between the batteries 10 of the battery module 100, a liquid cooling plate is disposed at the bottom of the battery module 100, and heat emitted from each battery 10 is transferred to the liquid cooling plate by the heat conductive separator and is carried away by the liquid cooling plate.
However, the above heat-conducting separator cannot solve the problem of large temperature differences in different areas of the battery 10, thereby affecting the cycle life of the battery 10.
Taking the square battery module 100 as an example, referring to fig. 1, 2, 16 and 17, in one embodiment of the present invention, there is provided a soaking separator 20, the battery module 100 including a plurality of battery packs arranged side by side in a second direction Y, each battery pack including a plurality of batteries 10 arranged side by side in a first direction X, further, each battery pack including a plurality of first batteries 11 and second batteries 12 arranged adjacently, one soaking separator 20 being arranged between each of the first batteries 11 and the second batteries 12.
The soaking partition 20 includes a case 21, the case 21 including a first side wall 221 and a second side wall 222, the first side wall 221 being in contact with the first battery 11, the second side wall 222 being in contact with the second battery 12; the shell 21 is provided with a hollow inner cavity 23, at least one part of the inner cavity 23 is configured as a closed cavity, the wall surrounding the closed cavity comprises a first side wall 221 and a second side wall 222, a cooling medium 60 is arranged in the closed cavity, the further soaking partition plate further comprises a capillary element 24, the capillary element 24 is attached to at least one part of the inner wall of the shell 21, and at least one part of the capillary element 24 is in contact with the cooling medium 60; wherein, the soaking partition 20 is configured as a hollow square plate-shaped body structure, and the shell 21 comprises a first end 211 and a second end 212 which are oppositely arranged, wherein the second end 212 of the shell 21 is connected to the direct cooling plate 30.
In comparison with the heat conductive separator plate in the related art, the soaking separator plate 20 is capable of conducting heat absorbed from the first battery 11 and the second battery 12 to the direct cooling plate 30, and the soaking separator plate 20 itself is configured as a hollow structure for circulating and diffusing the cooling medium 60, so that the soaking separator plate 20 is advantageous in reducing the temperature difference of the battery 10.
In the operation process of the battery module 100, taking the first battery 11 as an example, the heat generated by the first battery 11 is conducted to the first side wall 221 to enable the temperature to start to rise rapidly, so that a heat source area and a cooling area are formed in the cavity, wherein the heat source area can be understood as an area range far away from the direct cooling plate 30 in the cavity, and the cooling area is an area range of the cavity close to the direct cooling plate 30; the heat source region and the cooling region have a significant temperature variation, i.e. the temperature of the heat source region will be significantly higher than the cooling region.
As shown in fig. 3, at least part of the capillary element 24 is in contact with the cooling medium 60, it can be understood that the end 243 of the capillary element 24 is wrapped by the cooling medium 60, the cooling medium 60 performs anti-gravity movement under the action of capillary phenomenon, and spreads from the lowest point to the high point, the cooling medium 60 (liquid medium in this case) in the capillary element 24 absorbs heat energy in the heat source area and changes from the liquid medium into the gaseous medium, the gaseous medium rapidly fills the whole cavity, the gaseous medium enters the cooling area and then rapidly condenses, and the condensed cooling medium 60 is transported by the capillary element 24 by anti-gravity. Returning to the vicinity of the heat source region, the cooling medium 60 continues to absorb heat generated by the battery, thereby achieving gas-liquid circulation.
By improving the heat dissipation performance by the soaking partition plate 20, the temperature in the upper region of the battery is prevented from becoming too high, and the upper, middle and lower temperatures of the battery are approximately equalized.
By using the soaking partition 20 for separating the first battery 11 and the second battery 12, wherein at least a part of the inner cavity of the soaking partition 20 is configured as a closed cavity, the wall surrounding the closed cavity comprises a first side wall 221 and a second side wall 222, the first side wall 221 contacts the first battery 11, the second side wall 222 contacts the second battery 12, a cooling medium 60 is arranged in the closed cavity of the soaking partition 20, heat generated by the first battery 11 and the second battery 12 is conducted to the soaking partition 20 through the first side wall 221 and the second side wall 222 respectively, the liquid cooling medium 60 in a part of the inside of the soaking partition 20 is vaporized and then rapidly diffuses in the whole closed cavity, the vaporized cooling medium 60 is cooled in contact with the direct cooling plate 30 at the second end 212 of the shell 21, the condensed cooling medium 60 is diffused on the inner wall of the shell through the capillary element 24, the inner wall of the shell 21 forms a structure, and the other part of the liquid cooling medium 60 in the inside of the soaking partition 20 is diffused through the capillary element 24, the temperature difference between the soaking partition 20 and the soaking partition 20 is reduced, and the temperature difference between the soaking partition 20 and the cell is more than that in the corresponding soaking partition 20 is reduced, and the temperature difference between the soaking partition 20 and the cell is greatly reduced.
The capillary element 24 of the present embodiment is mainly a structure designed based on theory of capillary phenomenon, which is a well-known phenomenon, and capillary phenomenon (sometimes referred to as capillary action, capillary movement, capillary rise, capillary effect or wicking) is a process of flowing liquid in a narrow space, without any help of external force, even against external force such as gravity.
This effect may be between brush hairs, in tubules, porous materials (such as paper and gypsum), some non-porous materials (such as sand and liquefied carbon fibers), or a biological cell. This occurs due to intermolecular forces between the liquid and the surrounding solid surface. If the diameter of the tube is small enough, the surface tension (caused by cohesion within the liquid) and the adhesion between the liquid and the container wall act together to push the liquid.
Further, in one embodiment of the present invention, as shown in fig. 2, the entire inner cavity 23 of the soaking partition 20 is configured as a closed cavity, the housing 21 includes a top wall 213 disposed at the first end 211, the housing 21 further includes a plurality of side walls connected to the top wall 213, the second end 212 of the housing 21 may be configured as an open end, the cooling medium 60 is injected into the inner cavity 23 of the housing 21 through the opening 215 of the second end 212, and then the second end 212 of the housing 21 is welded to the direct cooling plate 30, so that the inner cavity 23 of the soaking partition 20 is configured as a sealed cavity.
In still another embodiment of the present invention, as shown in fig. 4, the soaking partition 20 is configured as a hollow inverted T-shaped plate structure, unlike the above embodiment, the second end 212 of the housing 21 is provided with a bottom wall 216, the bottom wall 216 is opposite to the top wall 213, the cooling medium 60 is injected into the inner cavity 23 of the housing 21 through the opening 215 of the second end 212, and then the bottom wall 216 is welded at the second end 212 of the housing 21, so that the inner cavity 23 of the soaking partition 20 is configured as a sealed cavity, and the bottom wall 216 is further connected to the direct cooling plate 30, where the connection manner of the bottom wall 216 and the direct cooling plate 30 may be welding, clamping or bonding.
When the second end 212 of the soaking partition plate 20 is provided with the bottom wall 216, the orthographic projection area of the bottom wall 216 on the straight cold plate 30 is larger than the orthographic projection area of the top wall 213 on the straight cold plate 30, and the heat exchange efficiency between the soaking plate and the straight cold plate 30 can be increased by increasing the contact area of the bottom wall 216 and the straight cold plate 30.
The cooling medium 60 includes a liquid or a refrigerant, the refrigerant may be freon or ammonia, etc., the cooling medium 60 is configured to circulate between a liquid phase and a gas phase, the initial state of the cooling medium 60 is a liquid state, when heat generated from the first battery 11 and the second battery 12 is transferred to the liquid cooling medium 60, the liquid cooling medium 60 absorbs the heat and is converted into the gaseous cooling medium 60, the gaseous cooling medium 60 rapidly circulates and spreads in the closed cavity of the soaking partition 20, so that even if a certain part of the temperature of the battery 10 is excessively high, the heat generated from the part of the battery 10 is transferred to the cooling medium 60, and then the cooling medium 60 is vaporized and rapidly spreads into the entire sealed cavity of the soaking partition 20, and since the soaking partition 20 is integrally constructed as a plate-shaped structure, the temperature of the part of the battery 10 is configured such that the temperature of the whole of the battery 10 remains the same after the heat generated from the part of the battery 10 is sufficiently heat exchanged with the soaking partition 20.
The housing 21 may be made of a metal material that facilitates heat conduction, and suitable metal materials include copper, aluminum, titanium, stainless steel, etc., and the housing 21 may be made of a composite metal material, and suitable composite metal materials include copper-aluminum composite materials or copper-nickel composite materials.
The size of the soaking partition plate 20 may be adaptively adjusted according to the size of the battery module 100, for example, when the size of the battery module 100 is large, the size of the soaking partition plate 20 may be increased accordingly, and accordingly, the wall thickness of the housing 21 of the soaking partition plate 20 and the volume of the inner cavity 23 of the soaking partition plate 20 may be increased accordingly, so that the heat conduction and the temperature uniformity of the soaking partition plate 20 may be increased, and when the size of the battery module 100 is small, the size of the soaking partition plate 20 may be reduced accordingly, and accordingly, the wall thickness of the housing 21 of the soaking partition plate 20 and the volume of the inner cavity 23 of the soaking partition plate 20 may be reduced, thereby facilitating the miniaturization design of the battery module 100.
In a further preferred embodiment, the soaking partition 20 may enhance the heat dissipation effect of the battery module 100, as shown in fig. 2 and 3, specifically, the soaking partition 20 may have the capillary element 24 disposed in the inner cavity 23 thereof, the first sidewall 221 may include the first inner surface 223, the second sidewall 222 may include the second inner surface 224, the soaking partition 20 may have the first capillary element 241 and the second capillary element 242 disposed in the inner cavity 23 thereof, wherein the first capillary element 241 is disposed to be adhered to the first inner surface 223, the second capillary element 242 is disposed to be adhered to the second inner surface 224, the liquid cooling medium 60 may be rapidly spread on the first inner surface 223 by the first capillary element 241, and the liquid cooling medium 60 may be rapidly spread on the second inner surface 224 by the second capillary element 242.
After the gaseous cooling medium 60 contacts the direct cooling plate 30 at the second end 212 of the housing 21, the gaseous cooling medium 60 condenses into a liquid cooling medium 60 after being cooled due to the low temperature of the direct cooling plate 30, during the condensation of the cooling medium 60, the heat carried by the gaseous cooling medium 60 is transferred to the direct cooling plate 30, the cooling medium 60 condensed into a liquid state flows on the first inner surface 223 via the first capillary element 241, thereby cooling the first inner surface 223, and the first battery 11 via the wall where the first inner surface 223 is located, and the cooling medium 60 condensed into a liquid state flows on the second inner surface 224 via the second capillary element 242, thereby cooling the second inner surface 224 and the second battery 12 via the wall where the second inner surface 224 is located.
The capillary element 24 may be made of a fiber wool material, which is adhered to the inner surface of the soaking partition 20, and has a rich network structure inside, thereby facilitating the rapid flow of the liquid cooling medium 60 inside the fiber wool.
The capillary element 24 can also be formed by mixing metal powder and solution to form metal powder slurry, the metal powder slurry is combined on the inner wall of the soaking partition board 20 through a spraying process, the suitable metal powder comprises copper powder, the copper powder has good hydrophilicity, and the capillary structure formed by the copper powder has strong capillary force and good heat conductivity, so that the heat dissipation effect of the soaking partition board 20 can be effectively improved.
In the present invention, the cooling medium 60 includes a direct cooling medium 62 and a uniform cooling medium 61, wherein the direct cooling medium 62 is defined as flowing in from an inlet of a flow passage and flowing out from an outlet of the flow passage, and the uniform cooling medium 61 is defined as adding the uniform cooling medium 61 into a sealed cavity, and the uniform cooling medium 61 is configured to flow only inside the cavity. The cold homogenizing medium 61 comprises liquid or refrigerant, the refrigerant can be freon or ammonia and the like, the cold homogenizing medium 61 has liquid phase and gas phase, the liquid cold homogenizing medium 61 can be converted into gaseous cold homogenizing medium 61 after absorbing heat, and the gaseous cold homogenizing medium 61 can rapidly diffuse in the accommodating space of the cold homogenizing medium 61, so that the temperature difference of the accommodating space where the cold homogenizing medium 61 is positioned is relatively small. The direct cooling medium 62 includes liquid or air, and the direct cooling medium 62 removes heat by its flow property after absorbing the heat, thereby radiating the heat from the battery module 100.
In still another embodiment provided by the present invention, as shown in fig. 5, a part of the inner cavities of the soaking partition 20 is configured as a closed cavity, in which a first cooling medium is disposed, another part of the inner cavities of the soaking partition 20 is configured as a direct cooling plate, in which a second cooling medium is disposed, in particular, a first partition 251 and a second partition 252 are disposed at intervals inside the soaking partition 20, and the inner cavity 23 of the casing 21 is divided into a first cavity 231, a second cavity 232, and a third cavity 233 in this order, wherein the first partition 251 is used to divide the first cavity 231 and the second cavity 232, and the second partition 252 is used to divide the second cavity 232 and the third cavity 233.
Wherein the first cavity 231 and the second cavity 232 are configured as closed cavities, the first cavity 231 is disposed close to the first battery 11, the third cavity 233 is disposed close to the second battery 12, a first cooling medium is disposed inside the first cavity 231 and the third cavity 233, a second cooling medium is disposed inside the second cavity 232, wherein the first cooling medium is configured as a uniform cooling medium 61, the second cooling medium is configured as a direct cooling medium 62, the uniform cooling medium 61 disposed inside the first cavity 231 is configured to be capable of flowing only inside the first cavity 231, the uniform cooling medium 61 disposed inside the third cavity 233 is configured to be capable of flowing only inside the third cavity 233, and the direct cooling medium 62 disposed inside the second cavity 232 is configured to flow in from outside the second cavity 232, and the direct cooling medium 62 is configured to be capable of flowing out to outside the second cavity 232.
In a further preferred implementation, with the dimensions of the soaking partition 30 kept within the appropriate size range, a suitable volume ratio is provided between the first cavity 231, the second cavity 232 and the third cavity 233, i.e. the volume of the first cavity 231: volume of the second cavity 232: the ratio of the volumes of the third cavity 233 is 1: x:1, wherein 1 is less than or equal to X is less than or equal to 2, because the volumes of the first battery 11 and the second battery 12 are substantially the same, the volume of the first cavity 231 for absorbing and dissipating heat from the first battery 11 is substantially the same as the volume of the third cavity 233 for absorbing and dissipating heat from the second battery 12, so that the overall temperature of the first battery 11 and the second battery 12 is kept substantially the same, the volume of the second cavity 232 is greater than the volume of the first cavity 231, or the volume of the second cavity 232 is greater than the volume of the third cavity 233, which is beneficial to improving the overall heat dissipation performance of the soaking partition 20, and further, if the ratio of the volume of the second cavity 232 to the volume of the first cavity 231 is greater than 2, the overall size design of the soaking partition 30 is too large, which is detrimental to the overall miniaturization design of the battery module 100, and it is understood that the ratio of the volume of the second cavity 232 to the volume of the first cavity 231 may be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7.8, 1.9, or any value between the two values.
In a further preferred implementation, the volume of the first cavity 231: volume of the second cavity 232: the ratio of the volumes of the third cavity 233 is 1:1.5:1.
the first cavity 231 is close to the inner wall of the first battery 11 and is provided with a first capillary element 241, the third cavity 233 is close to the second battery 12, the inner wall of the third cavity 233 close to the second battery 12 is provided with a second capillary element 242, the first cavity 231 and the third cavity 233 are configured as sealed cavities, wherein heat generated by the first battery 11 is circularly diffused through the uniform cooling medium 61 in the first cavity 231 of the soaking partition plate 20, so that the integral temperature difference of the first battery 11 is relatively small, and heat generated by the second battery 12 is circularly diffused through the uniform cooling medium 61 in the third cavity 233 of the soaking partition plate 20, so that the integral temperature difference of the second battery 12 is small.
As shown in fig. 6 and 7, the soaking partition 20 includes a first inlet 261 and a first outlet 262, and the direct cooling medium 62 may enter the second cavity 232 through the first inlet 261 and flow out of the second cavity 232 through the first outlet 262, wherein the second cavity 232 is disposed between the first cavity 231 and the third cavity 233, so that heat inside the first cavity 231 and the third cavity 233 may be rapidly transferred to the second cavity 232 and be circulated for heat dissipation through the flow of the direct cooling medium 62 inside the second cavity 232.
One of the first inlet 261 and the first outlet 262 of the soaking partition 20 is provided on a sidewall of the first partition 251, and the other of the first inlet 261 and the first outlet 262 of the soaking partition 20 is provided on a sidewall of the second partition 252.
Referring further to fig. 8 to 9, the soaking partition 20 includes a first soaking plate 210, a cooling plate 230 and a second soaking plate 220 that are combined with each other, the first soaking plate 210 is provided with a hollow first cavity 231, the cooling plate 230 is provided with a hollow second cavity 232, the second soaking plate 220 is provided with a hollow third cavity 233, a combination wall where the first soaking plate 210 and the cooling plate 230 are welded defines the first partition 251, a combination wall where the cooling plate 230 and the second soaking plate 220 are welded defines the second partition 252, as shown in fig. 8, a first outlet 262 is provided at a top end of the first partition 251, and a first inlet 261 is provided at a bottom end of the second partition 252.
Referring further to fig. 10 to 11, the soaking partition plate 20 includes a first soaking plate 210 and a second soaking plate 220 combined with each other, the first soaking plate 210 is provided with a hollow first cavity 231, the second soaking plate 220 is provided with a hollow third cavity 233, the first soaking plate 210 and the second soaking plate 220 are combined by welding a sealing plate 27, the first soaking plate 210 includes a first sidewall 221 and a first partition plate 251 disposed opposite to the first sidewall 221, the second soaking plate 220 includes a second partition plate 252 and a second sidewall 222 disposed opposite to the second partition plate 252, the first partition plate 251, the second partition plate 252 and a plurality of sealing plates 27 for connecting the first soaking plate 210 and the second soaking plate 220 enclose to form a second cavity 232, as shown in fig. 10, a first outlet 262 is disposed at a top end of the first partition plate, and a first inlet 261 is disposed at a bottom end of the second partition plate 252.
A liquid inlet pipe 40 and a liquid outlet pipe 50 are provided in the inside of the battery module 100, wherein one branch of the liquid inlet pipe 40 is connected to the first inlet 261 of the soaking partition 20, and one branch of the liquid outlet pipe 50 is connected to the first outlet 262 of the soaking partition 20.
The second end 212 of the soaking partition 20 is connected to the direct cooling plate 30 disposed at the bottom of the battery module 100, and in an embodiment of the invention, a direct cooling plate 30 structure is further provided, and the direct cooling plate 30 structure is beneficial to rapid heat dissipation of the battery module 100.
Referring further to fig. 2 to 5 and fig. 12 and 13, the direct cooling plate 30 includes a base 32, wherein the base 32 is provided with a flow channel 34, the flow channel 34 is configured as a plurality of grooves formed on the base 32, the base 32 is further provided with a second inlet 331 and a second outlet 332, the direct cooling medium 62 can enter the flow channel 34 inside the direct cooling plate 30 through the second inlet 331, the heat transferred to the direct cooling plate 30 by the soaking partition plate 20 is absorbed by the direct cooling medium 62, and the flow channel 34 inside the direct cooling plate 30 is prolonged in a manner of repeatedly and roundabout extending, so that the direct cooling medium 62 can fully absorb the heat of the soaking partition plate 20 and flow out through the second outlet 332.
Referring to fig. 12, in one embodiment of the present invention, the flow channel 34 on the direct cooling plate 30 may be configured to extend in a S-shaped detour, a second inlet 331 of the flow channel 34 is provided at a bottom end of one side of the base 32, and a second outlet 332 of the flow channel 34 is provided at a top end of the other side of the base 32.
Referring further to fig. 13, in still another embodiment of the present invention, the flow channel 34 of the direct cooling plate 30 includes two main flow channels and a plurality of sub-flow channels, wherein the two main flow channels extend along a direction parallel to the side of the direct cooling plate 30, the plurality of sub-flow channels are disposed perpendicular to the main flow channels, the plurality of sub-flow channels are all connected to the two main flow channels, a second inlet 331 is disposed at one side of the bottom surface of the base 32, and a second outlet 332 is disposed at the other side of the top surface of the base 32, wherein the second inlet 331 is in communication with one of the main flow channels, and the second outlet 332 is in communication with the other main flow channel.
As shown in fig. 14 and 15, the direct cooling plate 30 further includes a top cover 31, the top cover 31 is used for covering the flow channel 34 on the base 32, so that the flow channel 34 is only communicated with the outside through the second inlet 331 and the second outlet 332, the top cover 31 includes a first side 312 and a second side 313 which are oppositely arranged, wherein the first side 312 contacts with the soaking partition 20, the second side 313 is opposite to the flow channel 34 on the base 32, a plurality of protruding points 311 are further arranged on the second side 313 of the top cover 31, the protruding points 311 are used for increasing the contact area between the direct cooling medium 62 and the second side 313, and because the heat conducted by the first battery 11 and the second battery 12 to the soaking partition 20 is mainly dissipated through the top cover 31 of the direct cooling plate 30, the top cover 31 is provided with a plurality of protruding points 311, which is beneficial to improving the heat transfer efficiency of the top cover 31 and the direct cooling medium 62, and further improving the heat absorption effect of the top cover 31 on the partition 20.
In an example provided by the present invention, the cross section of the bump 311 may be circular, as shown in fig. 14, and the bumps 311 have substantially the same cross section area, and the adjacent bumps 311 are maintained at substantially the same interval, thereby facilitating uniform heat dissipation of the battery module 100.
In another example provided by the present invention, the cross section of the bump 311 may be rectangular, as shown in fig. 15, and the bumps 311 may be maintained at substantially the same interval, thereby facilitating uniform heat dissipation of the battery module 100.
In one embodiment of the present invention, the inner cavity 23 of the soaking partition 20 is divided into three cavities, wherein the first cavity 231 near the first battery 11 is provided with the uniform cooling medium 61, the third cavity 233 near the second battery 12 is provided with the uniform cooling medium 61, the second cavity 232 between the first cavity 231 and the third cavity 233 is provided with the direct cooling medium 62, and the inside of the direct cooling plate 30 connected to the second end 212 of the soaking partition 20 is provided with the direct cooling medium 62.
When the direct cooling medium 62 is configured as a liquid, the battery module 100 further comprises a liquid inlet pipe 40 and a liquid outlet pipe 50, wherein one branch of the liquid inlet pipe 40 is connected to the soaking partition plate 20, the other branch of the liquid inlet pipe 40 is connected to the direct cooling plate 30, one branch of the liquid outlet pipe 50 is connected to the soaking partition plate 20, the other branch of the liquid outlet pipe 50 is connected to the direct cooling plate 30, the second inlet 331 of the flow channel 34 of the direct cooling plate 30 is communicated with the first inlet 261 of the second cavity 232 of the soaking partition plate 20, the second outlet 332 of the flow channel 34 of the direct cooling plate 30 is communicated with the first outlet 262 of the second cavity 232 of the soaking partition plate 20, and when the direct cooling medium 62 is injected into the direct cooling plate 30, a part of the direct cooling medium 62 enters the second cavity 232 of the soaking partition plate 20 through the liquid inlet pipe 40, a part of the direct cooling medium 62 enters the flow channel 34 of the direct cooling plate 30 through the liquid inlet pipe 40, and simultaneously enters the inside of the second cavity 232 of the soaking partition plate 20 and the flow channel 34 of the direct cooling plate 30, and the heat dissipation efficiency of the battery module 11 is improved by the direct cooling medium is effectively transferred to the soaking partition plate 30 from the first end of the soaking partition plate 20 and the soaking partition plate 20.
Referring to fig. 16, in an example provided by the present invention, when the battery module 100 is configured as a single-layered battery module 100, one soaking partition plate 20 is used to separate the first battery 11 and the second battery 12 in each battery pack 110, one group of soaking partition plates 20 is provided in each battery pack, the number of soaking partition plates 20 provided inside the battery module 100 is substantially the same as that of the batteries 10, a liquid inlet pipe 40 is provided at one side of the battery module 100, a liquid outlet pipe 50 is provided at the other side of the battery module 100, the liquid inlet pipe 40 includes a main liquid inlet pipe 41 and a plurality of sub liquid inlet pipes 42, each sub liquid inlet pipe 42 is provided with a plurality of interfaces 43, each interface 43 is connected with the first inlet 261 of the second cavity 232 of one soaking partition plate 20, wherein the number of sub liquid inlet pipes 42 is the same as that of groups of soaking partition plates 20, and the number of interfaces 43 of sub liquid inlet pipes 42 is the same as that of each group of partition plates 20. The liquid outlet pipe 50 comprises a main liquid outlet pipe 51 and a plurality of liquid outlet separating pipes 52, each liquid outlet separating pipe 52 is provided with a plurality of connectors 53, each connector 53 is connected with a first outlet 262 of the second cavity 232 of one soaking partition board 20, the number of liquid outlet separating pipes 52 is the same as the number of groups of soaking partition boards 20, and the number of interfaces 43 of liquid outlet separating pipes 52 is the same as the number of soaking partition boards 20 of each group.
Referring further to fig. 17, when the battery module 100 is configured as the multi-layered battery module 100, one soaking partition plate 20 may be used to partition simultaneously a plurality of sets of the first battery 11 and the second battery 12, the battery module 100 includes four battery packs, each battery pack 110 includes five batteries, five soaking partition plates 20 are provided in the battery module 100, and each soaking partition plate 20 is used to partition simultaneously the first battery 11 and the second battery 12 in the first set of batteries 111, the first battery 11 and the second battery 12 in the second set of batteries 112, the first battery 11 and the second battery 12 in the third set of batteries 113, and the first battery 11 and the second battery 12 in the fourth set of batteries 114. A liquid inlet pipe 40 is provided at one side of the battery module 100, a liquid outlet pipe 50 is provided at the other side of the battery module 100, the liquid inlet pipe 40 includes a plurality of interfaces 43, each interface 43 is connected with a first inlet 261 of a second cavity 232 of one soaking partition 20, the number of interfaces 43 of the liquid inlet pipe 40 is the same as the number of soaking partitions 20, the liquid outlet pipe 50 is provided with a plurality of joints 53, each joint 53 is connected with a first outlet 262 of the second cavity 232 of one soaking partition 20, and the number of joints 53 of the liquid outlet pipe 50 is the same as the number of soaking partitions 20.
Additionally, in the multi-layered battery module, one soaking separator 20 may be provided between the first battery 11 and the second battery 12 in each battery pack 110.
In an embodiment of the present invention, there is also provided a battery pack including a plurality of the above-described battery modules 100, and the plurality of battery modules 100 may be connected in parallel or in series, or the plurality of battery modules 100 may be connected in a hybrid manner.
The foregoing has outlined rather broadly the more detailed description of embodiments of the invention, wherein the principles and embodiments of the invention are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (13)
1. A soaking partition board for battery module, battery module includes soaking partition board, battery and direct cooling board, soaking partition board sets up in arbitrary two between the battery, its characterized in that, soaking partition board includes:
a housing provided with a hollow interior, at least a portion of the interior being configured as a closed cavity, the walls bounding the closed cavity comprising a first side wall in contact with one of the two cells and a second side wall in contact with the other of the two cells;
A cooling medium disposed within the enclosed cavity;
a capillary element attached to at least a portion of an inner surface of the first sidewall or at least a portion of an inner surface of the second sidewall, at least a portion of the capillary element being in contact with the cooling medium;
the shell comprises a first end and a second end which are oppositely arranged, and the second end of the shell is connected to the direct cooling plate.
2. The soaking partition according to claim 1, wherein the first end of the enclosure is provided with a top wall and the second end is provided with an open end, the top wall being connected to the tops of the first and second side walls, the open end being connected to and capped by the straight cold plate.
3. The soaking partition according to claim 1, wherein the first end of the enclosure is provided with a top wall and the second end is provided with a bottom wall, the top wall being connected to the tops of the first and second side walls, the bottom wall being connected to the bottoms of the first and second side walls, the bottom wall being connected to the straight cold plate.
4. A soaking partition according to claim 3, wherein the orthographic projection area of the bottom wall on the straight cold plate is larger than the orthographic projection area of the top wall on the straight cold plate.
5. The soaking partition according to claim 1, wherein the ends of the capillary elements are surrounded by the cooling medium.
6. The soaking partition of claim 5, wherein the first side wall comprises a first inner surface and the second side wall comprises a second inner surface;
the capillary element further comprises a first capillary element and a second capillary element, wherein the first capillary element is attached to the first inner surface, the second capillary element is attached to the second inner surface, the first capillary element is used for enabling the liquid cooling medium to diffuse on the first inner surface, and the second capillary element is used for enabling the liquid cooling medium to diffuse on the second inner surface.
7. The soaking partition according to claim 1, wherein a first partition and a second partition are arranged in the inner cavity of the shell at intervals, the first side wall, the first partition, the second partition and the second side wall are sequentially arranged at intervals in parallel, the inner cavity of the shell comprises a first cavity, a second cavity and a third cavity which are sequentially arranged at intervals, the first side wall and the first partition are sealed to form the first cavity, the first partition and the second partition are enclosed to form the second cavity, and the second partition and the second side wall are sealed to form the third cavity;
The cooling medium comprises a uniform cooling medium and a direct cooling medium, wherein the uniform cooling medium and the first capillary element are arranged in the first cavity, the uniform cooling medium and the second capillary element are arranged in the third cavity, and the direct cooling medium is arranged in the second cavity.
8. The soaking partition of claim 7, wherein the volume of the first cavity: volume of the second cavity: the ratio of the volumes of the third cavity is 1: x: x is more than or equal to 1 and less than or equal to 2.
9. The soaking partition of claim 7, wherein the soaking medium comprises a liquid configured to circulate between a liquefied state and a vaporized state; and/or the direct cooling medium comprises liquid or air, and is configured to flow into the interior of the second cavity and to flow out to the exterior of the second cavity.
10. The soaking partition according to claim 9, further comprising a first inlet for the cold homogenizing medium to enter into the interior of the second chamber and a first outlet for the second cooling medium to flow out to the exterior of the second chamber; wherein the first inlet is in communication with the second inlet of the direct chill plate.
11. The soaking partition of claim 10, wherein one of the first inlet and the first outlet is disposed on the first partition and the other of the first inlet and the first outlet is disposed on the second partition.
12. A battery module, characterized in that the battery module comprises the soaking partition board of any one of claims 1-11, the direct cooling board comprises a top cover and a base which are connected, the base is provided with a fluid channel, a plurality of protruding points are arranged on the side surface of the top cover, which faces away from the soaking partition board, and orthographic projection of the protruding points on the base is positioned in the fluid channel.
13. The battery module of claim 12, wherein the cross section of the bump comprises a circle or a square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311614686.9A CN117525686A (en) | 2023-11-28 | 2023-11-28 | Soaking partition plate and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311614686.9A CN117525686A (en) | 2023-11-28 | 2023-11-28 | Soaking partition plate and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117525686A true CN117525686A (en) | 2024-02-06 |
Family
ID=89766201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311614686.9A Pending CN117525686A (en) | 2023-11-28 | 2023-11-28 | Soaking partition plate and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117525686A (en) |
-
2023
- 2023-11-28 CN CN202311614686.9A patent/CN117525686A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210043992A1 (en) | Battery cell with integrated vapor chamber | |
| KR101748360B1 (en) | Battery Module | |
| KR100667943B1 (en) | Secondary battery module | |
| JP2009134901A (en) | Battery system | |
| CN115458832A (en) | Power battery cooling system with synergistic effect of multi-element composite phase change material and water cooling | |
| CN113471604A (en) | Power battery pack | |
| CN216354415U (en) | Battery cell module and battery pack | |
| CN112582703B (en) | Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate | |
| CN117525686A (en) | Soaking partition plate and battery module | |
| CN115551309A (en) | Soaking plate water-cooling radiator structure | |
| CN217656011U (en) | Battery module | |
| CN216120476U (en) | Liquid-cooled battery pack heat dissipation device with phase change heat storage function | |
| CN116799352A (en) | Battery and electricity utilization device | |
| KR20240005078A (en) | BATTERY MODULE AND BATTERY SYSTEM WITH HEAT EXCHANGER HOUSING | |
| CN220873700U (en) | Battery liquid cooling heat abstractor based on two-sided vapor chamber | |
| CN218831087U (en) | Soaking plate water-cooling radiator structure | |
| CN220021254U (en) | Cooling assembly for battery pack, battery pack and vehicle | |
| CN220021368U (en) | Battery module and battery pack | |
| CN220963488U (en) | Cooling assembly, battery pack and vehicle | |
| CN116190846B (en) | Uniform temperature energy storage pack and energy storage equipment | |
| CN219321456U (en) | Heat radiation structure of battery module | |
| CN219832811U (en) | Battery pack | |
| CN216903112U (en) | A samming device and samming system for new forms of energy battery module | |
| CN115241574B (en) | Active enhanced heat dissipation structure for small power battery pack and electric vehicle | |
| CN219163517U (en) | Power battery heat radiation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |