CN214043778U - Immersion type liquid cooling battery module with integrated liquid cooling board - Google Patents
Immersion type liquid cooling battery module with integrated liquid cooling board Download PDFInfo
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- CN214043778U CN214043778U CN202023100787.9U CN202023100787U CN214043778U CN 214043778 U CN214043778 U CN 214043778U CN 202023100787 U CN202023100787 U CN 202023100787U CN 214043778 U CN214043778 U CN 214043778U
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Abstract
The utility model relates to an immersion liquid cooling battery module technical field, especially relate to an immersion liquid cooling battery module with integrated liquid cold drawing, current battery module cooling or rate of heating are slow, an immersion liquid cooling battery module with integrated liquid cold drawing, including battery module body, battery module body includes module bottom plate and liquid cooling battery module, liquid cooling battery module includes the module shell, the module inner shell, battery and module apron, module inner shell and module apron, constitute the immersion liquid passageway that encircles outside the battery between module shell and the module bottom plate, be equipped with immersion liquid filling hole and set up the end cap on the module apron, the module bottom plate includes coolant liquid passageway, circulation liquid inlet and circulation liquid outlet, set up expansion mechanism on the module shell, effectively solve battery module quick cooling or heating, restrain battery electrode oxidation, The core thermal runaway has good development prospect in the technical field of immersion type liquid cooling battery modules.
Description
Technical Field
The utility model relates to an immersion type liquid cooling battery module technical field especially relates to an immersion type liquid cooling battery module with integrated liquid cooling board.
Background
With the popularization of new energy automobiles, the lithium ion battery industry is rapidly developed. But simultaneously, based on the requirements of the user side on quick charging and long cycle life of the battery, higher requirements are put forward on the uniformity of the temperature field of each battery monomer; meanwhile, the new energy automobile has higher and higher requirements on long endurance mileage, the energy density of the battery is higher and higher, and the requirement on thermal management of the battery is higher and higher; batteries are required to meet adaptability requirements of severe environments, and the requirement for inhibiting thermal runaway of batteries is increasing.
The uniformity of the surface temperature field of the battery is improved, the temperature consistency of battery monomers in the battery module is improved, the surface heat transfer efficiency of the battery monomers is improved, all the battery monomers are in a proper working temperature region, and the method is the key for solving the heat management problem of the high-energy-density battery; the key to solve the problems of long-term operation and local high temperature in high-rate charge and discharge of the battery under severe working conditions is to prevent the battery electrode from being oxidized; when thermal runaway of the battery monomer occurs, the thermal runaway region is physically isolated, even if the thermal runaway of the monomer occurs, heat released by the battery monomer can be absorbed to prevent thermal runaway diffusion, and even if the bulge of the battery monomer cracks, combustion can be prevented, which is the key for solving the problems.
At present, the heat dissipation mode of the battery module mainly comprises natural cooling, air cooling, liquid cooling, direct cooling of a refrigerant and the like. Natural cooling and air cooling are greatly limited by the environment and are not suitable for high-temperature and low-temperature environments. Liquid cooling and refrigerant direct cooling, environmental suitability is good, but at present liquid cooling all is that liquid passes through liquid pipeline contact battery bottom or side, carries out the heat exchange through insulating heat conduction rubber and battery indirect contact, and battery core temperature uniformity is poor, and is relatively poor to the suppression effect that battery core thermal runaway takes place and spreads.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides an immersion type liquid cooling battery module with integrated liquid cooling board solves battery module cooling or rate of heating slow, battery temperature homogeneity is poor, can not be fine restrain battery core thermal runaway and take place and restrain the poor problem of thermal runaway diffusivity when thermal runaway takes place.
The technical scheme includes that the immersion type liquid cooling battery module with the integrated liquid cooling plate comprises a battery module body, wherein the battery module body comprises a module bottom plate and a liquid cooling battery module, the liquid cooling battery module comprises a module outer shell which is hermetically fixed on the module bottom plate, a module inner shell which is sleeved in the module outer shell, a battery which is sleeved in the module inner shell, and a module cover plate which is packaged on the upper portion of the module outer shell, a soaking liquid channel which surrounds the outside of the battery is formed between the module inner shell and the module cover plate as well as between the module outer shell and the module bottom plate, a soaking liquid filling hole is formed in the module cover plate and is plugged by arranging a plug, soaking liquid is filled into the soaking liquid channel through the soaking liquid filling hole to realize heat exchange with the battery, and the soaking liquid is used in a temperature condition range of-60-200℃ and has good fluidity, The liquid that can directly soak the battery that insulating nature is good, the fire resistance is good, antioxidative, the module bottom plate includes inside coolant liquid passageway, circulation liquid inlet and circulation liquid outlet, and the coolant liquid circulates in the coolant liquid passageway and carries out the heat transfer with the immersion liquid in the immersion liquid passageway, set up expansion mechanism on the module shell, expansion mechanism absorbs when the volume changes under different temperatures for taking the sheetmetal welded fastening of deformation structure on the module shell according to intracavity liquid.
Further, the expansion mechanism is formed by punching a thin metal plate with a thickness of 0.15-0.5mm through the opening on the end or side or top of the module housing.
Still further, the module inner shell includes the curb plate that extends on length direction, the riser that extends on width direction and the battery backup pad of bottom, the battery sets up inside the module inner shell and installs in bottom battery backup pad, the full through-hole of equipartition in curb plate and the battery backup pad for realize fully contacting between soaking liquid and the battery and carry out the heat transfer, set up the long screw mounting hole that extends on vertical direction on the riser respectively, the position that corresponds with the long screw mounting hole on the module bottom plate is equipped with battery fixing thread blind hole respectively, long screw mounting hole and battery fixing thread blind hole department set up long screw and connect fixed battery to the module shell in.
Furthermore, the battery support plate is a support plate with a raised structure on the surface.
Furthermore, the battery is externally provided with a shell, the outer surface of the shell is provided with an insulating shell formed by an insulating layer, and the battery comprises a plurality of single batteries.
Furthermore, module mounting holes are formed in two ends of the module bottom plate respectively, and external screws are arranged at the module mounting holes to mount the battery module and equipment and fix the module in the battery pack.
Furthermore, a module positive and negative electrode connector and a signal connector are respectively arranged at two ends of the battery module body, positive and negative electrode fastening screws are arranged at the end part of the battery and matched with the positive and negative electrode connectors, positive and negative electrode fastening nuts are arranged on the module inner shell and matched with the signal connector, and the signal connector is used for transmitting signals such as the internal temperature and the internal pressure of the battery.
Further, the cooling liquid channel is a porous channel with a plurality of interconnected pore-like structures.
The utility model has the technical effects that the soaking liquid is directly soaked and contacted with the battery monomer in the module, the heat exchange coefficient of the battery surface is high, the contact area is large, the effective contact distribution is uniform and reliable, the heat dissipation efficiency is high, the heat dissipation performance is stable and reliable, the surface temperature under the condition of large-multiplying-power charging and discharging of the battery can be effectively reduced, and the probability of occurrence of the service life attenuation problem and the thermal runaway problem of the battery caused by the high local temperature of the battery is reduced; the bottom of the module is integrated with a cooling liquid channel bottom plate, heat exchange is carried out between cooling liquid in the cooling liquid channel and soaking liquid, the cooling or heating process of the soaking liquid in the module is completed, and the module is simple in structure and low in cost; the soaking liquid can effectively inhibit the battery electrode from being oxidized under the severe working condition for a long time and causing thermal runaway due to local high temperature; meanwhile, the soaking liquid can effectively inhibit combustion, explosion and thermal runaway transfer diffusion when the thermal runaway occurs; the problem that a battery module is cooled or heated quickly is effectively solved, so that the temperature of the battery is uniform and is kept in a proper working temperature area, the oxidization of a battery electrode is inhibited, the thermal runaway occurrence of a battery core is inhibited, the thermal runaway diffusion is inhibited when the thermal runaway occurs, and the combustion and explosion of the battery core are inhibited.
Drawings
Fig. 1 is a left side schematic view of the assembly structure of the present invention.
Fig. 2 is a right side schematic view of the assembly structure of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is a schematic view of the overall structure of the module inner case of the present invention.
Fig. 5 is a schematic diagram of a side structure of the module inner case of the present invention.
Fig. 6 is an enlarged schematic view of the expansion structure of the present invention.
Fig. 7 is a schematic structural view of the cross section of the cooling liquid channel of the present invention.
In the figure: 1-module cover plate, 2-positive and negative connectors, 3-signal connectors, 4-circulating liquid inlet, 5-circulating liquid outlet, 6-module outer shell, 7-module bottom plate, 8-module inner shell, 9-positive and negative fastening nuts, 10-battery, 11-positive and negative fastening screws, 12-long screw, 13-module mounting hole, 14-battery fixing threaded blind hole, 15-expansion structure, 16-plug, 17-vertical plate, 18-through hole, 19-long screw mounting hole, 20-side plate, 21-battery support plate and 22-cooling liquid channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: the immersion type liquid cooling battery module with the integrated liquid cooling plate comprises a battery module body, wherein the battery module body comprises a module bottom plate 7 and the liquid cooling battery module, the liquid cooling battery module comprises a module outer shell 6 which is hermetically fixed on the module bottom plate 7, a module inner shell 8 which is sleeved in the module outer shell 6, a battery 10 which is sleeved in the module inner shell 8 and a module cover plate 1 which is packaged at the upper part of the module outer shell 6, an immersion liquid channel which surrounds the outside of the battery 10 is formed between the module inner shell 8 and the module cover plate 1 as well as between the module outer shell 6 and the module bottom plate 7, an immersion liquid filling hole is formed in the module cover plate 1 and is plugged through a plug 16, the immersion liquid is filled into the immersion liquid channel through the immersion liquid filling hole to realize heat exchange with the battery, and the immersion liquid is used in a temperature condition range of-60-200 ℃ and has good fluidity, The module bottom plate 7 comprises a plurality of internal porous cooling liquid channels 22 with communicated pore structures, a circulation liquid inlet 4 and a circulation liquid outlet 5, the cooling liquid flows in the cooling liquid channels to exchange heat with immersion liquid in the immersion liquid channels, an expansion mechanism 15 is arranged on the module shell 6, the expansion mechanism 15 is a metal sheet with a deformation structure and is welded and fixed on the module shell 6, the volume of the liquid in the cavity is changed at different temperatures, and the expansion mechanism 15 is formed by punching and welding thin metal plates with the thickness of 0.15-0.5mm on the end part or the side edge or the top of the module shell 6.
Example two: on the basis of the first embodiment, the module inner housing 8 includes a side plate 20 extending in the length direction, a vertical plate 7 extending in the width direction, and a battery support plate 21 at the bottom, the battery 10 is disposed inside the module inner housing 8 and mounted on the battery support plate 21 at the bottom, through holes 18 are uniformly distributed on the side plate 20 and the battery support plate 21 for achieving sufficient contact between the soaking liquid and the battery 10 for heat exchange, long screw mounting holes 19 extending in the vertical direction are respectively formed in the vertical plate 17, battery fixing threaded blind holes 14 are respectively formed in positions of the module bottom plate 7 corresponding to the long screw mounting holes 19, long screws 12 are arranged at the positions of the long screw mounting holes 19 and the battery fixing threaded blind holes 14 for connecting and fixing the battery 10 to the module outer housing 6, and the battery support plate 21 is a support plate with a protruding structure on the surface.
In the above embodiment, the battery 10 is provided with an outer shell outside, the outer surface of the outer shell is provided with an insulating outer shell formed by an insulating layer, the battery 10 includes a plurality of single batteries, the two ends of the module bottom plate 7 are respectively provided with a module mounting hole 13, the module mounting hole 13 is used for mounting a battery module and equipment by providing an external screw, the module is fixed in a battery pack, the two ends of the battery module body are respectively provided with a module positive and negative connector 2 and a signal connector 3, the end of the battery 10 is provided with a positive and negative fastening screw 11 to be matched with the positive and negative connector 2, the module inner shell 8 is provided with a positive and negative fastening nut 9 to be matched with the signal connector 3, and the signal connector 3 is used for transmitting signals such as internal temperature and pressure of the battery.
The utility model has the technical effects that the soaking liquid is directly soaked and contacted with the battery monomer in the module, the heat exchange coefficient of the battery surface is high, the contact area is large, the effective contact distribution is uniform and reliable, the heat dissipation efficiency is high, the heat dissipation performance is stable and reliable, the surface temperature under the condition of large-multiplying-power charging and discharging of the battery can be effectively reduced, and the probability of occurrence of the service life attenuation problem and the thermal runaway problem of the battery caused by the high local temperature of the battery is reduced; the bottom of the module is integrated with a cooling liquid channel bottom plate, heat exchange is carried out between cooling liquid in the cooling liquid channel and soaking liquid, the cooling or heating process of the soaking liquid in the module is completed, and the module is simple in structure and low in cost; the soaking liquid can effectively inhibit the battery electrode from being oxidized under the severe working condition for a long time and causing thermal runaway due to local high temperature; meanwhile, the soaking liquid can effectively inhibit combustion, explosion and thermal runaway transfer diffusion when the thermal runaway occurs; the problem that a battery module is cooled or heated quickly is effectively solved, so that the temperature of the battery is uniform and is kept in a proper working temperature area, the oxidization of a battery electrode is inhibited, the thermal runaway occurrence of a battery core is inhibited, the thermal runaway diffusion is inhibited when the thermal runaway occurs, and the combustion and explosion of the battery core are inhibited.
The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.
Claims (8)
1. The utility model provides a soak formula liquid cooling battery module with integrated liquid cold drawing, includes the battery module body, a serial communication port, the battery module body includes module bottom plate (7) and liquid cooling battery module, the liquid cooling battery module is including sealed module shell (6), the cover that is fixed in on module bottom plate (7) establish module inner shell (8) in module shell (6), the cover is established and is installed battery (10) in module inner shell (8) and is encapsulated in module apron (1) on module shell (6) upper portion, constitute between module inner shell (8) and module apron (1), module shell (6) and module bottom plate (7) and encircle the outside soaking liquid passageway in battery (10), be equipped with soaking liquid filler hole on module apron (1) and block up through setting up end cap (16), module bottom plate (7) are including inside coolant liquid passageway (22), Circulation liquid inlet (4) and circulation liquid outlet (5), set up expansion mechanism (15) on module shell (6).
2. An immersion liquid cooled battery module with integrated liquid cooling plate according to claim 1, characterized in that the expansion mechanism (15) is formed by welding a punched metal plate with a deformed structure, with an opening at the end or side or top of the module housing (6), the thickness of the metal plate being between 0.15-0.5 mm.
3. An immersion liquid cooled battery module with an integrated liquid cooled plate as claimed in claim 1 or 2, characterized in that the module inner shell (8) comprises a side plate (20) extending in the length direction, a vertical plate (17) extending in the width direction and a battery support plate (21) at the bottom, the battery (10) is arranged in the module inner shell (8) and is arranged on the bottom battery supporting plate (21), through holes (18) are fully distributed on the side plate (20) and the battery supporting plate (21), the vertical plates (17) are respectively provided with long screw mounting holes (19) extending in the vertical direction, battery fixing thread blind holes (14) are respectively arranged on the module bottom plate (7) corresponding to the long screw mounting holes (19), and long screws (12) are arranged at the long screw mounting holes (19) and the battery fixing threaded blind holes (14) to connect and fix the battery (10) into the module shell (6).
4. The immersion liquid cooled battery module with integrated liquid cooled plate as claimed in claim 3, characterized in that the battery support plate (21) is a support plate with a raised structure on its surface.
5. The immersion type liquid cooling battery module with the integrated liquid cooling plate as claimed in claim 1, wherein a housing is arranged outside the battery (10) and an insulating housing formed by an insulating layer is arranged on the outer surface of the housing, and the battery (10) comprises a plurality of single batteries.
6. The immersion type liquid-cooled battery module with an integrated liquid-cooled plate according to claim 1, characterized in that module mounting holes (13) are respectively formed at both ends of the module base plate (7).
7. The immersion type liquid-cooled battery module with the integrated liquid-cooled plate according to claim 1, wherein a module positive-negative connector (2) and a signal connector (3) are respectively arranged at two ends of the battery module body, a positive-negative fastening screw (11) is arranged at the end of the battery (10) and matched with the positive-negative connector (2), and a positive-negative fastening nut (9) is arranged on the module inner shell (8) and matched with the signal connector (3).
8. The immersion liquid cooled battery module with integrated liquid cold plate of claim 1, characterized in that the coolant channel (22) is a porous channel with a plurality of interconnected pore structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023100787.9U CN214043778U (en) | 2020-12-22 | 2020-12-22 | Immersion type liquid cooling battery module with integrated liquid cooling board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023100787.9U CN214043778U (en) | 2020-12-22 | 2020-12-22 | Immersion type liquid cooling battery module with integrated liquid cooling board |
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| CN214043778U true CN214043778U (en) | 2021-08-24 |
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| CN202023100787.9U Active CN214043778U (en) | 2020-12-22 | 2020-12-22 | Immersion type liquid cooling battery module with integrated liquid cooling board |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039086A (en) * | 2021-11-09 | 2022-02-11 | 长沙理工大学 | Heat management system integrated lithium ion battery structure and manufacturing method thereof |
| CN114156560A (en) * | 2021-11-30 | 2022-03-08 | 中国电力科学研究院有限公司 | Immersed liquid cooling heat dissipation module and heat dissipation method |
| CN117013131A (en) * | 2022-04-27 | 2023-11-07 | 福建时代星云科技有限公司 | Dual cycle cooling battery package structure |
| WO2024119822A1 (en) * | 2022-12-09 | 2024-06-13 | 江苏汇智高端工程机械创新中心有限公司 | Immersion-type power battery thermal management system |
-
2020
- 2020-12-22 CN CN202023100787.9U patent/CN214043778U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039086A (en) * | 2021-11-09 | 2022-02-11 | 长沙理工大学 | Heat management system integrated lithium ion battery structure and manufacturing method thereof |
| CN114039086B (en) * | 2021-11-09 | 2023-11-10 | 长沙理工大学 | Integrated lithium ion battery structure of thermal management system |
| CN114156560A (en) * | 2021-11-30 | 2022-03-08 | 中国电力科学研究院有限公司 | Immersed liquid cooling heat dissipation module and heat dissipation method |
| CN117013131A (en) * | 2022-04-27 | 2023-11-07 | 福建时代星云科技有限公司 | Dual cycle cooling battery package structure |
| WO2024119822A1 (en) * | 2022-12-09 | 2024-06-13 | 江苏汇智高端工程机械创新中心有限公司 | Immersion-type power battery thermal management system |
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